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Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char inet_aton (); int main () { return inet_aton (); ; return 0; } _ACEOF for ac_lib in '' resolv; do if test -z "$ac_lib"; then ac_res="none required" else ac_res=-l$ac_lib LIBS="-l$ac_lib $ac_func_search_save_LIBS" fi if ac_fn_c_try_link "$LINENO"; then : ac_cv_search_inet_aton=$ac_res fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext if ${ac_cv_search_inet_aton+:} false; then : break fi done if ${ac_cv_search_inet_aton+:} false; then : else ac_cv_search_inet_aton=no fi rm conftest.$ac_ext LIBS=$ac_func_search_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_inet_aton" >&5 $as_echo "$ac_cv_search_inet_aton" >&6; } ac_res=$ac_cv_search_inet_aton if test "$ac_res" != no; then : test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing backtrace" >&5 $as_echo_n "checking for library containing backtrace... " >&6; } if ${ac_cv_search_backtrace+:} false; then : $as_echo_n "(cached) " >&6 else ac_func_search_save_LIBS=$LIBS cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char backtrace (); int main () { return backtrace (); ; return 0; } _ACEOF for ac_lib in '' execinfo; do if test -z "$ac_lib"; then ac_res="none required" else ac_res=-l$ac_lib LIBS="-l$ac_lib $ac_func_search_save_LIBS" fi if ac_fn_c_try_link "$LINENO"; then : ac_cv_search_backtrace=$ac_res fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext if ${ac_cv_search_backtrace+:} false; then : break fi done if ${ac_cv_search_backtrace+:} false; then : else ac_cv_search_backtrace=no fi rm conftest.$ac_ext LIBS=$ac_func_search_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_backtrace" >&5 $as_echo "$ac_cv_search_backtrace" >&6; } ac_res=$ac_cv_search_backtrace if test "$ac_res" != no; then : test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" fi saved_LIBS="$LIBS" { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing clock_gettime" >&5 $as_echo_n "checking for library containing clock_gettime... " >&6; } if ${ac_cv_search_clock_gettime+:} false; then : $as_echo_n "(cached) " >&6 else ac_func_search_save_LIBS=$LIBS cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char clock_gettime (); int main () { return clock_gettime (); ; return 0; } _ACEOF for ac_lib in '' rt; do if test -z "$ac_lib"; then ac_res="none required" else ac_res=-l$ac_lib LIBS="-l$ac_lib $ac_func_search_save_LIBS" fi if ac_fn_c_try_link "$LINENO"; then : ac_cv_search_clock_gettime=$ac_res fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext if ${ac_cv_search_clock_gettime+:} false; then : break fi done if ${ac_cv_search_clock_gettime+:} false; then : else ac_cv_search_clock_gettime=no fi rm conftest.$ac_ext LIBS=$ac_func_search_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_clock_gettime" >&5 $as_echo "$ac_cv_search_clock_gettime" >&6; } ac_res=$ac_cv_search_clock_gettime if test "$ac_res" != no; then : test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" fi if test "$LIBS" != "$saved_LIBS"; then # Looks like we need -lrt for clock_gettime(). have_rt=yes fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing pthread_create" >&5 $as_echo_n "checking for library containing pthread_create... " >&6; } if ${ac_cv_search_pthread_create+:} false; then : $as_echo_n "(cached) " >&6 else ac_func_search_save_LIBS=$LIBS cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char pthread_create (); int main () { return pthread_create (); ; return 0; } _ACEOF for ac_lib in '' pthread; do if test -z "$ac_lib"; then ac_res="none required" else ac_res=-l$ac_lib LIBS="-l$ac_lib $ac_func_search_save_LIBS" fi if ac_fn_c_try_link "$LINENO"; then : ac_cv_search_pthread_create=$ac_res fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext if ${ac_cv_search_pthread_create+:} false; then : break fi done if ${ac_cv_search_pthread_create+:} false; then : else ac_cv_search_pthread_create=no fi rm conftest.$ac_ext LIBS=$ac_func_search_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_pthread_create" >&5 $as_echo "$ac_cv_search_pthread_create" >&6; } ac_res=$ac_cv_search_pthread_create if test "$ac_res" != no; then : test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing pthread_detach" >&5 $as_echo_n "checking for library containing pthread_detach... " >&6; } if ${ac_cv_search_pthread_detach+:} false; then : $as_echo_n "(cached) " >&6 else ac_func_search_save_LIBS=$LIBS cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char pthread_detach (); int main () { return pthread_detach (); ; return 0; } _ACEOF for ac_lib in '' pthread; do if test -z "$ac_lib"; then ac_res="none required" else ac_res=-l$ac_lib LIBS="-l$ac_lib $ac_func_search_save_LIBS" fi if ac_fn_c_try_link "$LINENO"; then : ac_cv_search_pthread_detach=$ac_res fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext if ${ac_cv_search_pthread_detach+:} false; then : break fi done if ${ac_cv_search_pthread_detach+:} false; then : else ac_cv_search_pthread_detach=no fi rm conftest.$ac_ext LIBS=$ac_func_search_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_pthread_detach" >&5 $as_echo "$ac_cv_search_pthread_detach" >&6; } ac_res=$ac_cv_search_pthread_detach if test "$ac_res" != no; then : test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" fi if test "$bwin32" = "true"; then THREADS_WIN32_TRUE= THREADS_WIN32_FALSE='#' else THREADS_WIN32_TRUE='#' THREADS_WIN32_FALSE= fi if test "$bwin32" = "false"; then THREADS_PTHREADS_TRUE= THREADS_PTHREADS_FALSE='#' else THREADS_PTHREADS_TRUE='#' THREADS_PTHREADS_FALSE= fi for ac_func in _NSGetEnviron \ RtlSecureZeroMemory \ SecureZeroMemory \ accept4 \ backtrace \ backtrace_symbols_fd \ eventfd \ explicit_bzero \ timingsafe_memcmp \ flock \ ftime \ getaddrinfo \ getifaddrs \ getpass \ getrlimit \ gettimeofday \ gmtime_r \ htonll \ inet_aton \ ioctl \ issetugid \ llround \ localtime_r \ lround \ memmem \ memset_s \ pipe \ pipe2 \ prctl \ readpassphrase \ rint \ sigaction \ socketpair \ statvfs \ strlcat \ strlcpy \ strnlen \ strptime \ strtok_r \ strtoull \ sysconf \ sysctl \ truncate \ uname \ usleep \ vasprintf \ _vscprintf do : as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" if eval test \"x\$"$as_ac_var"\" = x"yes"; then : cat >>confdefs.h <<_ACEOF #define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 _ACEOF fi done # Apple messed up when they added two functions functions in Sierra: they # forgot to decorate them with appropriate AVAILABLE_MAC_OS_VERSION # checks. So we should only probe for those functions if we are sure that we # are not targetting OSX 10.11 or earlier. { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a pre-Sierra OSX build target" >&5 $as_echo_n "checking for a pre-Sierra OSX build target... " >&6; } cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #ifdef __APPLE__ # include # ifndef MAC_OS_X_VERSION_10_12 # define MAC_OS_X_VERSION_10_12 101200 # endif # if defined(MAC_OS_X_VERSION_MIN_REQUIRED) # if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_12 # error "Running on Mac OSX 10.11 or earlier" # endif # endif #endif int main () { ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : on_macos_pre_10_12=no ; { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } else on_macos_pre_10_12=yes; { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test "$on_macos_pre_10_12" = "no"; then for ac_func in clock_gettime \ getentropy \ do : as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" if eval test \"x\$"$as_ac_var"\" = x"yes"; then : cat >>confdefs.h <<_ACEOF #define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 _ACEOF fi done fi if test "$bwin32" != "true"; then for ac_header in pthread.h do : ac_fn_c_check_header_mongrel "$LINENO" "pthread.h" "ac_cv_header_pthread_h" "$ac_includes_default" if test "x$ac_cv_header_pthread_h" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_PTHREAD_H 1 _ACEOF fi done for ac_func in pthread_create do : ac_fn_c_check_func "$LINENO" "pthread_create" "ac_cv_func_pthread_create" if test "x$ac_cv_func_pthread_create" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_PTHREAD_CREATE 1 _ACEOF fi done for ac_func in pthread_condattr_setclock do : ac_fn_c_check_func "$LINENO" "pthread_condattr_setclock" "ac_cv_func_pthread_condattr_setclock" if test "x$ac_cv_func_pthread_condattr_setclock" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_PTHREAD_CONDATTR_SETCLOCK 1 _ACEOF fi done fi if test "$bwin32" = "true"; then ac_fn_c_check_decl "$LINENO" "SecureZeroMemory" "ac_cv_have_decl_SecureZeroMemory" " #include #include #include " if test "x$ac_cv_have_decl_SecureZeroMemory" = xyes; then : ac_have_decl=1 else ac_have_decl=0 fi cat >>confdefs.h <<_ACEOF #define HAVE_DECL_SECUREZEROMEMORY $ac_have_decl _ACEOF ac_fn_c_check_decl "$LINENO" "_getwch" "ac_cv_have_decl__getwch" " #include #include #include " if test "x$ac_cv_have_decl__getwch" = xyes; then : ac_have_decl=1 else ac_have_decl=0 fi cat >>confdefs.h <<_ACEOF #define HAVE_DECL__GETWCH $ac_have_decl _ACEOF fi if test "x$ac_cv_func_readpassphrase" = "xno" && test "$bwin32" = "false"; then BUILD_READPASSPHRASE_C_TRUE= BUILD_READPASSPHRASE_C_FALSE='#' else BUILD_READPASSPHRASE_C_TRUE='#' BUILD_READPASSPHRASE_C_FALSE= fi if test "$bwin32" = "true"; then TOR_LIB_WS32=-lws2_32 TOR_LIB_IPHLPAPI=-liphlpapi # Some of the cargo-cults recommend -lwsock32 as well, but I don't # think it's actually necessary. TOR_LIB_GDI=-lgdi32 else TOR_LIB_WS32= TOR_LIB_GDI= fi tor_libevent_pkg_redhat="libevent" tor_libevent_pkg_debian="libevent-dev" tor_libevent_devpkg_redhat="libevent-devel" tor_libevent_devpkg_debian="libevent-dev" STATIC_LIBEVENT_FLAGS="" if test "$enable_static_libevent" = "yes"; then if test "$have_rt" = "yes"; then STATIC_LIBEVENT_FLAGS=" -lrt " fi fi trylibeventdir="" # Check whether --with-libevent-dir was given. if test "${with_libevent_dir+set}" = set; then : withval=$with_libevent_dir; if test x$withval != xno ; then trylibeventdir="$withval" fi fi if test "x$trylibeventdir" = x && test "x$ALT_libevent_WITHVAL" != x ; then trylibeventdir="$ALT_libevent_WITHVAL" fi tor_saved_LIBS="$LIBS" tor_saved_LDFLAGS="$LDFLAGS" tor_saved_CPPFLAGS="$CPPFLAGS" { $as_echo "$as_me:${as_lineno-$LINENO}: checking for libevent directory" >&5 $as_echo_n "checking for libevent directory... " >&6; } if ${tor_cv_library_libevent_dir+:} false; then : $as_echo_n "(cached) " >&6 else tor_libevent_dir_found=no tor_libevent_any_linkable=no for tor_trydir in "$trylibeventdir" "(system)" "$prefix" /usr/local /usr/pkg /opt/libevent; do LDFLAGS="$tor_saved_LDFLAGS" LIBS="$tor_saved_LIBS -levent $STATIC_LIBEVENT_FLAGS $TOR_LIB_WS32" CPPFLAGS="$tor_saved_CPPFLAGS" if test -z "$tor_trydir" ; then continue; fi # Skip the directory if it isn't there. if test ! -d "$tor_trydir" && test "$tor_trydir" != "(system)"; then continue; fi # If this isn't blank, try adding the directory (or appropriate # include/libs subdirectories) to the command line. if test "$tor_trydir" != "(system)"; then if test -d "$tor_trydir/lib"; then LDFLAGS="-L$tor_trydir/lib $LDFLAGS" else LDFLAGS="-L$tor_trydir $LDFLAGS" fi if test -d "$tor_trydir/include"; then CPPFLAGS="-I$tor_trydir/include $CPPFLAGS" else CPPFLAGS="-I$tor_trydir $CPPFLAGS" fi fi # Can we link against (but not necessarily run, or find the headers for) # the binary? cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #ifdef _WIN32 #include #endif struct event_base; struct event_base *event_base_new(void); int main () { #ifdef _WIN32 {WSADATA d; WSAStartup(0x101,&d); } #endif event_base_new(); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : linkable=yes else linkable=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext if test "$linkable" = yes; then tor_libevent_any_linkable=yes # Okay, we can link against it. Can we find the headers? cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #ifdef _WIN32 #include #endif #include #include #include int main () { #ifdef _WIN32 {WSADATA d; WSAStartup(0x101,&d); } #endif event_base_new(); ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : buildable=yes else buildable=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test "$buildable" = yes; then tor_cv_library_libevent_dir=$tor_trydir tor_libevent_dir_found=yes break fi fi done if test "$tor_libevent_dir_found" = no; then if test "$tor_libevent_any_linkable" = no ; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Could not find a linkable libevent. If you have it installed somewhere unusual, you can specify an explicit path using --with-libevent-dir" >&5 $as_echo "$as_me: WARNING: Could not find a linkable libevent. If you have it installed somewhere unusual, you can specify an explicit path using --with-libevent-dir" >&2;} h="" if test xpkg = xdevpkg; then h=" headers for" fi if test -f /etc/debian_version && test x"$tor_libevent_pkg_debian" != x; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: On Debian, you can install$h libevent using \"apt-get install $tor_libevent_pkg_debian\"" >&5 $as_echo "$as_me: WARNING: On Debian, you can install$h libevent using \"apt-get install $tor_libevent_pkg_debian\"" >&2;} if test x"$tor_libevent_pkg_debian" != x"$tor_libevent_devpkg_debian"; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: You will probably need $tor_libevent_devpkg_debian too." >&5 $as_echo "$as_me: WARNING: You will probably need $tor_libevent_devpkg_debian too." >&2;} fi fi if test -f /etc/fedora-release && test x"$tor_libevent_pkg_redhat" != x; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: On Fedora, you can install$h libevent using \"dnf install $tor_libevent_pkg_redhat\"" >&5 $as_echo "$as_me: WARNING: On Fedora, you can install$h libevent using \"dnf install $tor_libevent_pkg_redhat\"" >&2;} if test x"$tor_libevent_pkg_redhat" != x"$tor_libevent_devpkg_redhat"; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: You will probably need to install $tor_libevent_devpkg_redhat too." >&5 $as_echo "$as_me: WARNING: You will probably need to install $tor_libevent_devpkg_redhat too." >&2;} fi else if test -f /etc/redhat-release && test x"$tor_libevent_pkg_redhat" != x; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: On most Redhat-based systems, you can get$h libevent by installing the $tor_libevent_pkg_redhat RPM package" >&5 $as_echo "$as_me: WARNING: On most Redhat-based systems, you can get$h libevent by installing the $tor_libevent_pkg_redhat RPM package" >&2;} if test x"$tor_libevent_pkg_redhat" != x"$tor_libevent_devpkg_redhat"; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: You will probably need to install $tor_libevent_devpkg_redhat too." >&5 $as_echo "$as_me: WARNING: You will probably need to install $tor_libevent_devpkg_redhat too." >&2;} fi fi fi as_fn_error $? "Missing libraries; unable to proceed." "$LINENO" 5 else { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: We found the libraries for libevent, but we could not find the C header files. You may need to install a devel package." >&5 $as_echo "$as_me: WARNING: We found the libraries for libevent, but we could not find the C header files. You may need to install a devel package." >&2;} h="" if test xdevpkg = xdevpkg; then h=" headers for" fi if test -f /etc/debian_version && test x"$tor_libevent_devpkg_debian" != x; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: On Debian, you can install$h libevent using \"apt-get install $tor_libevent_devpkg_debian\"" >&5 $as_echo "$as_me: WARNING: On Debian, you can install$h libevent using \"apt-get install $tor_libevent_devpkg_debian\"" >&2;} if test x"$tor_libevent_devpkg_debian" != x"$tor_libevent_devpkg_debian"; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: You will probably need $tor_libevent_devpkg_debian too." >&5 $as_echo "$as_me: WARNING: You will probably need $tor_libevent_devpkg_debian too." >&2;} fi fi if test -f /etc/fedora-release && test x"$tor_libevent_devpkg_redhat" != x; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: On Fedora, you can install$h libevent using \"dnf install $tor_libevent_devpkg_redhat\"" >&5 $as_echo "$as_me: WARNING: On Fedora, you can install$h libevent using \"dnf install $tor_libevent_devpkg_redhat\"" >&2;} if test x"$tor_libevent_devpkg_redhat" != x"$tor_libevent_devpkg_redhat"; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: You will probably need to install $tor_libevent_devpkg_redhat too." >&5 $as_echo "$as_me: WARNING: You will probably need to install $tor_libevent_devpkg_redhat too." >&2;} fi else if test -f /etc/redhat-release && test x"$tor_libevent_devpkg_redhat" != x; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: On most Redhat-based systems, you can get$h libevent by installing the $tor_libevent_devpkg_redhat RPM package" >&5 $as_echo "$as_me: WARNING: On most Redhat-based systems, you can get$h libevent by installing the $tor_libevent_devpkg_redhat RPM package" >&2;} if test x"$tor_libevent_devpkg_redhat" != x"$tor_libevent_devpkg_redhat"; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: You will probably need to install $tor_libevent_devpkg_redhat too." >&5 $as_echo "$as_me: WARNING: You will probably need to install $tor_libevent_devpkg_redhat too." >&2;} fi fi fi as_fn_error $? "Missing headers; unable to proceed." "$LINENO" 5 fi fi LDFLAGS="$tor_saved_LDFLAGS" LIBS="$tor_saved_LIBS" CPPFLAGS="$tor_saved_CPPFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_library_libevent_dir" >&5 $as_echo "$tor_cv_library_libevent_dir" >&6; } LIBS="$LIBS -levent $STATIC_LIBEVENT_FLAGS $TOR_LIB_WS32" if test "$tor_cv_library_libevent_dir" != "(system)"; then if test -d "$tor_cv_library_libevent_dir/lib"; then LDFLAGS="-L$tor_cv_library_libevent_dir/lib $LDFLAGS" else LDFLAGS="-L$tor_cv_library_libevent_dir $LDFLAGS" fi if test -d "$tor_cv_library_libevent_dir/include"; then CPPFLAGS="-I$tor_cv_library_libevent_dir/include $CPPFLAGS" else CPPFLAGS="-I$tor_cv_library_libevent_dir $CPPFLAGS" fi fi if test x$tor_cv_library_libevent_dir = "x(system)"; then TOR_LDFLAGS_libevent="" TOR_CPPFLAGS_libevent="" else if test -d "$tor_cv_library_libevent_dir/lib"; then TOR_LDFLAGS_libevent="-L$tor_cv_library_libevent_dir/lib" TOR_LIBDIR_libevent="$tor_cv_library_libevent_dir/lib" else TOR_LDFLAGS_libevent="-L$tor_cv_library_libevent_dir" TOR_LIBDIR_libevent="$tor_cv_library_libevent_dir" fi if test -d "$tor_cv_library_libevent_dir/include"; then TOR_CPPFLAGS_libevent="-I$tor_cv_library_libevent_dir/include" else TOR_CPPFLAGS_libevent="-I$tor_cv_library_libevent_dir" fi fi if test "$cross_compiling" != yes; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we need extra options to link libevent" >&5 $as_echo_n "checking whether we need extra options to link libevent... " >&6; } if ${tor_cv_library_libevent_linker_option+:} false; then : $as_echo_n "(cached) " >&6 else orig_LDFLAGS="$LDFLAGS" runs=no linked_with=nothing if test -d "$tor_cv_library_libevent_dir/lib"; then tor_trydir="$tor_cv_library_libevent_dir/lib" else tor_trydir="$tor_cv_library_libevent_dir" fi for tor_tryextra in "(none)" "-Wl,-R$tor_trydir" "-R$tor_trydir" \ "-Wl,-rpath,$tor_trydir" ; do if test "$tor_tryextra" = "(none)"; then LDFLAGS="$orig_LDFLAGS" else LDFLAGS="$tor_tryextra $orig_LDFLAGS" fi if test "$cross_compiling" = yes; then : { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error $? "cannot run test program while cross compiling See \`config.log' for more details" "$LINENO" 5; } else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #ifdef _WIN32 #include #endif struct event_base; struct event_base *event_base_new(void); int main () { #ifdef _WIN32 {WSADATA d; WSAStartup(0x101,&d); } #endif event_base_new(); ; return 0; } _ACEOF if ac_fn_c_try_run "$LINENO"; then : runnable=yes else runnable=no fi rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ conftest.$ac_objext conftest.beam conftest.$ac_ext fi if test "$runnable" = yes; then tor_cv_library_libevent_linker_option=$tor_tryextra break fi done if test "$runnable" = no; then as_fn_error $? "Found linkable libevent in $tor_cv_library_libevent_dir, but it does not seem to run, even with -R. Maybe specify another using --with-libevent-dir}" "$LINENO" 5 fi LDFLAGS="$orig_LDFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_library_libevent_linker_option" >&5 $as_echo "$tor_cv_library_libevent_linker_option" >&6; } if test "$tor_cv_library_libevent_linker_option" != "(none)" ; then TOR_LDFLAGS_libevent="$TOR_LDFLAGS_libevent $tor_cv_library_libevent_linker_option" fi fi # cross-compile LIBS="$tor_saved_LIBS" LDFLAGS="$tor_saved_LDFLAGS" CPPFLAGS="$tor_saved_CPPFLAGS" save_LIBS="$LIBS" save_LDFLAGS="$LDFLAGS" save_CPPFLAGS="$CPPFLAGS" LIBS="$STATIC_LIBEVENT_FLAGS $TOR_LIB_WS32 $save_LIBS" LDFLAGS="$TOR_LDFLAGS_libevent $LDFLAGS" CPPFLAGS="$TOR_CPPFLAGS_libevent $CPPFLAGS" for ac_header in event2/event.h event2/dns.h event2/bufferevent_ssl.h do : as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default" if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : cat >>confdefs.h <<_ACEOF #define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 _ACEOF fi done if test "$enable_static_libevent" = "yes"; then if test "$tor_cv_library_libevent_dir" = "(system)"; then as_fn_error $? "\"You must specify an explicit --with-libevent-dir=x option when using --enable-static-libevent\"" "$LINENO" 5 else TOR_LIBEVENT_LIBS="$TOR_LIBDIR_libevent/libevent.a $STATIC_LIBEVENT_FLAGS" fi else if test "x$ac_cv_header_event2_event_h" = "xyes"; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing event_new" >&5 $as_echo_n "checking for library containing event_new... " >&6; } if ${ac_cv_search_event_new+:} false; then : $as_echo_n "(cached) " >&6 else ac_func_search_save_LIBS=$LIBS cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char event_new (); int main () { return event_new (); ; return 0; } _ACEOF for ac_lib in '' event event_core; do if test -z "$ac_lib"; then ac_res="none required" else ac_res=-l$ac_lib LIBS="-l$ac_lib $ac_func_search_save_LIBS" fi if ac_fn_c_try_link "$LINENO"; then : ac_cv_search_event_new=$ac_res fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext if ${ac_cv_search_event_new+:} false; then : break fi done if ${ac_cv_search_event_new+:} false; then : else ac_cv_search_event_new=no fi rm conftest.$ac_ext LIBS=$ac_func_search_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_event_new" >&5 $as_echo "$ac_cv_search_event_new" >&6; } ac_res=$ac_cv_search_event_new if test "$ac_res" != no; then : test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" else as_fn_error $? "\"libevent2 is installed but linking it failed while searching for event_new\"" "$LINENO" 5 fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing evdns_base_new" >&5 $as_echo_n "checking for library containing evdns_base_new... " >&6; } if ${ac_cv_search_evdns_base_new+:} false; then : $as_echo_n "(cached) " >&6 else ac_func_search_save_LIBS=$LIBS cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char evdns_base_new (); int main () { return evdns_base_new (); ; return 0; } _ACEOF for ac_lib in '' event event_extra; do if test -z "$ac_lib"; then ac_res="none required" else ac_res=-l$ac_lib LIBS="-l$ac_lib $ac_func_search_save_LIBS" fi if ac_fn_c_try_link "$LINENO"; then : ac_cv_search_evdns_base_new=$ac_res fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext if ${ac_cv_search_evdns_base_new+:} false; then : break fi done if ${ac_cv_search_evdns_base_new+:} false; then : else ac_cv_search_evdns_base_new=no fi rm conftest.$ac_ext LIBS=$ac_func_search_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_evdns_base_new" >&5 $as_echo "$ac_cv_search_evdns_base_new" >&6; } ac_res=$ac_cv_search_evdns_base_new if test "$ac_res" != no; then : test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" else as_fn_error $? "\"libevent2 is installed but linking it failed while searching for evdns_base_new\"" "$LINENO" 5 fi if test "$ac_cv_search_event_new" != "none required"; then TOR_LIBEVENT_LIBS="$ac_cv_search_event_new" fi if test "$ac_cv_search_evdns_base_new" != "none required"; then TOR_LIBEVENT_LIBS="$ac_cv_search_evdns_base_new $TOR_LIBEVENT_LIBS" fi else as_fn_error $? "\"libevent2 is required but the headers could not be found\"" "$LINENO" 5 fi fi for ac_func in evutil_secure_rng_set_urandom_device_file \ evutil_secure_rng_add_bytes \ do : as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" if eval test \"x\$"$as_ac_var"\" = x"yes"; then : cat >>confdefs.h <<_ACEOF #define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 _ACEOF fi done LIBS="$save_LIBS" LDFLAGS="$save_LDFLAGS" CPPFLAGS="$save_CPPFLAGS" CPPFLAGS="$CPPFLAGS $TOR_CPPFLAGS_libevent" { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether Libevent is new enough" >&5 $as_echo_n "checking whether Libevent is new enough... " >&6; } cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include #if !defined(LIBEVENT_VERSION_NUMBER) || LIBEVENT_VERSION_NUMBER < 0x02000a00 #error int x = y(zz); #else int x = 1; #endif _ACEOF if ac_fn_c_try_compile "$LINENO"; then : { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } as_fn_error $? "Libevent is not new enough. We require 2.0.10-stable or later" "$LINENO" 5 fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext LIBS="$save_LIBS" LDFLAGS="$save_LDFLAGS" CPPFLAGS="$save_CPPFLAGS" TOR_LIB_MATH="" save_LIBS="$LIBS" { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing pow" >&5 $as_echo_n "checking for library containing pow... " >&6; } if ${ac_cv_search_pow+:} false; then : $as_echo_n "(cached) " >&6 else ac_func_search_save_LIBS=$LIBS cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char pow (); int main () { return pow (); ; return 0; } _ACEOF for ac_lib in '' m; do if test -z "$ac_lib"; then ac_res="none required" else ac_res=-l$ac_lib LIBS="-l$ac_lib $ac_func_search_save_LIBS" fi if ac_fn_c_try_link "$LINENO"; then : ac_cv_search_pow=$ac_res fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext if ${ac_cv_search_pow+:} false; then : break fi done if ${ac_cv_search_pow+:} false; then : else ac_cv_search_pow=no fi rm conftest.$ac_ext LIBS=$ac_func_search_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_pow" >&5 $as_echo "$ac_cv_search_pow" >&6; } ac_res=$ac_cv_search_pow if test "$ac_res" != no; then : test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" else as_fn_error $? "Could not find pow in libm or libc." "$LINENO" 5 fi if test "$ac_cv_search_pow" != "none required"; then TOR_LIB_MATH="$ac_cv_search_pow" fi LIBS="$save_LIBS" tor_openssl_pkg_redhat="openssl" tor_openssl_pkg_debian="libssl-dev" tor_openssl_devpkg_redhat="openssl-devel" tor_openssl_devpkg_debian="libssl-dev" ALT_openssl_WITHVAL="" # Check whether --with-ssl-dir was given. if test "${with_ssl_dir+set}" = set; then : withval=$with_ssl_dir; if test "x$withval" != "xno" && test "x$withval" != "x"; then ALT_openssl_WITHVAL="$withval" fi fi tryopenssldir="" # Check whether --with-openssl-dir was given. if test "${with_openssl_dir+set}" = set; then : withval=$with_openssl_dir; if test x$withval != xno ; then tryopenssldir="$withval" fi fi if test "x$tryopenssldir" = x && test "x$ALT_openssl_WITHVAL" != x ; then tryopenssldir="$ALT_openssl_WITHVAL" fi tor_saved_LIBS="$LIBS" tor_saved_LDFLAGS="$LDFLAGS" tor_saved_CPPFLAGS="$CPPFLAGS" { $as_echo "$as_me:${as_lineno-$LINENO}: checking for openssl directory" >&5 $as_echo_n "checking for openssl directory... " >&6; } if ${tor_cv_library_openssl_dir+:} false; then : $as_echo_n "(cached) " >&6 else tor_openssl_dir_found=no tor_openssl_any_linkable=no for tor_trydir in "$tryopenssldir" "(system)" "$prefix" /usr/local /usr/pkg /usr/local/openssl /usr/lib/openssl /usr/local/ssl /usr/lib/ssl /usr/local /usr/athena /opt/openssl; do LDFLAGS="$tor_saved_LDFLAGS" LIBS="$tor_saved_LIBS -lssl -lcrypto $TOR_LIB_GDI" CPPFLAGS="$tor_saved_CPPFLAGS" if test -z "$tor_trydir" ; then continue; fi # Skip the directory if it isn't there. if test ! -d "$tor_trydir" && test "$tor_trydir" != "(system)"; then continue; fi # If this isn't blank, try adding the directory (or appropriate # include/libs subdirectories) to the command line. if test "$tor_trydir" != "(system)"; then if test -d "$tor_trydir/lib"; then LDFLAGS="-L$tor_trydir/lib $LDFLAGS" else LDFLAGS="-L$tor_trydir $LDFLAGS" fi if test -d "$tor_trydir/include"; then CPPFLAGS="-I$tor_trydir/include $CPPFLAGS" else CPPFLAGS="-I$tor_trydir $CPPFLAGS" fi fi # Can we link against (but not necessarily run, or find the headers for) # the binary? cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ void RAND_add(const void *buf, int num, double entropy); int main () { RAND_add((void*)0,0,0); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : linkable=yes else linkable=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext if test "$linkable" = yes; then tor_openssl_any_linkable=yes # Okay, we can link against it. Can we find the headers? cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include int main () { RAND_add((void*)0,0,0); ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : buildable=yes else buildable=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test "$buildable" = yes; then tor_cv_library_openssl_dir=$tor_trydir tor_openssl_dir_found=yes break fi fi done if test "$tor_openssl_dir_found" = no; then if test "$tor_openssl_any_linkable" = no ; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Could not find a linkable openssl. If you have it installed somewhere unusual, you can specify an explicit path using --with-openssl-dir" >&5 $as_echo "$as_me: WARNING: Could not find a linkable openssl. If you have it installed somewhere unusual, you can specify an explicit path using --with-openssl-dir" >&2;} h="" if test xpkg = xdevpkg; then h=" headers for" fi if test -f /etc/debian_version && test x"$tor_openssl_pkg_debian" != x; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: On Debian, you can install$h openssl using \"apt-get install $tor_openssl_pkg_debian\"" >&5 $as_echo "$as_me: WARNING: On Debian, you can install$h openssl using \"apt-get install $tor_openssl_pkg_debian\"" >&2;} if test x"$tor_openssl_pkg_debian" != x"$tor_openssl_devpkg_debian"; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: You will probably need $tor_openssl_devpkg_debian too." >&5 $as_echo "$as_me: WARNING: You will probably need $tor_openssl_devpkg_debian too." >&2;} fi fi if test -f /etc/fedora-release && test x"$tor_openssl_pkg_redhat" != x; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: On Fedora, you can install$h openssl using \"dnf install $tor_openssl_pkg_redhat\"" >&5 $as_echo "$as_me: WARNING: On Fedora, you can install$h openssl using \"dnf install $tor_openssl_pkg_redhat\"" >&2;} if test x"$tor_openssl_pkg_redhat" != x"$tor_openssl_devpkg_redhat"; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: You will probably need to install $tor_openssl_devpkg_redhat too." >&5 $as_echo "$as_me: WARNING: You will probably need to install $tor_openssl_devpkg_redhat too." >&2;} fi else if test -f /etc/redhat-release && test x"$tor_openssl_pkg_redhat" != x; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: On most Redhat-based systems, you can get$h openssl by installing the $tor_openssl_pkg_redhat RPM package" >&5 $as_echo "$as_me: WARNING: On most Redhat-based systems, you can get$h openssl by installing the $tor_openssl_pkg_redhat RPM package" >&2;} if test x"$tor_openssl_pkg_redhat" != x"$tor_openssl_devpkg_redhat"; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: You will probably need to install $tor_openssl_devpkg_redhat too." >&5 $as_echo "$as_me: WARNING: You will probably need to install $tor_openssl_devpkg_redhat too." >&2;} fi fi fi as_fn_error $? "Missing libraries; unable to proceed." "$LINENO" 5 else { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: We found the libraries for openssl, but we could not find the C header files. You may need to install a devel package." >&5 $as_echo "$as_me: WARNING: We found the libraries for openssl, but we could not find the C header files. You may need to install a devel package." >&2;} h="" if test xdevpkg = xdevpkg; then h=" headers for" fi if test -f /etc/debian_version && test x"$tor_openssl_devpkg_debian" != x; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: On Debian, you can install$h openssl using \"apt-get install $tor_openssl_devpkg_debian\"" >&5 $as_echo "$as_me: WARNING: On Debian, you can install$h openssl using \"apt-get install $tor_openssl_devpkg_debian\"" >&2;} if test x"$tor_openssl_devpkg_debian" != x"$tor_openssl_devpkg_debian"; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: You will probably need $tor_openssl_devpkg_debian too." >&5 $as_echo "$as_me: WARNING: You will probably need $tor_openssl_devpkg_debian too." >&2;} fi fi if test -f /etc/fedora-release && test x"$tor_openssl_devpkg_redhat" != x; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: On Fedora, you can install$h openssl using \"dnf install $tor_openssl_devpkg_redhat\"" >&5 $as_echo "$as_me: WARNING: On Fedora, you can install$h openssl using \"dnf install $tor_openssl_devpkg_redhat\"" >&2;} if test x"$tor_openssl_devpkg_redhat" != x"$tor_openssl_devpkg_redhat"; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: You will probably need to install $tor_openssl_devpkg_redhat too." >&5 $as_echo "$as_me: WARNING: You will probably need to install $tor_openssl_devpkg_redhat too." >&2;} fi else if test -f /etc/redhat-release && test x"$tor_openssl_devpkg_redhat" != x; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: On most Redhat-based systems, you can get$h openssl by installing the $tor_openssl_devpkg_redhat RPM package" >&5 $as_echo "$as_me: WARNING: On most Redhat-based systems, you can get$h openssl by installing the $tor_openssl_devpkg_redhat RPM package" >&2;} if test x"$tor_openssl_devpkg_redhat" != x"$tor_openssl_devpkg_redhat"; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: You will probably need to install $tor_openssl_devpkg_redhat too." >&5 $as_echo "$as_me: WARNING: You will probably need to install $tor_openssl_devpkg_redhat too." >&2;} fi fi fi as_fn_error $? "Missing headers; unable to proceed." "$LINENO" 5 fi fi LDFLAGS="$tor_saved_LDFLAGS" LIBS="$tor_saved_LIBS" CPPFLAGS="$tor_saved_CPPFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_library_openssl_dir" >&5 $as_echo "$tor_cv_library_openssl_dir" >&6; } LIBS="$LIBS -lssl -lcrypto $TOR_LIB_GDI" if test "$tor_cv_library_openssl_dir" != "(system)"; then if test -d "$tor_cv_library_openssl_dir/lib"; then LDFLAGS="-L$tor_cv_library_openssl_dir/lib $LDFLAGS" else LDFLAGS="-L$tor_cv_library_openssl_dir $LDFLAGS" fi if test -d "$tor_cv_library_openssl_dir/include"; then CPPFLAGS="-I$tor_cv_library_openssl_dir/include $CPPFLAGS" else CPPFLAGS="-I$tor_cv_library_openssl_dir $CPPFLAGS" fi fi if test x$tor_cv_library_openssl_dir = "x(system)"; then TOR_LDFLAGS_openssl="" TOR_CPPFLAGS_openssl="" else if test -d "$tor_cv_library_openssl_dir/lib"; then TOR_LDFLAGS_openssl="-L$tor_cv_library_openssl_dir/lib" TOR_LIBDIR_openssl="$tor_cv_library_openssl_dir/lib" else TOR_LDFLAGS_openssl="-L$tor_cv_library_openssl_dir" TOR_LIBDIR_openssl="$tor_cv_library_openssl_dir" fi if test -d "$tor_cv_library_openssl_dir/include"; then TOR_CPPFLAGS_openssl="-I$tor_cv_library_openssl_dir/include" else TOR_CPPFLAGS_openssl="-I$tor_cv_library_openssl_dir" fi fi if test "$cross_compiling" != yes; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we need extra options to link openssl" >&5 $as_echo_n "checking whether we need extra options to link openssl... " >&6; } if ${tor_cv_library_openssl_linker_option+:} false; then : $as_echo_n "(cached) " >&6 else orig_LDFLAGS="$LDFLAGS" runs=no linked_with=nothing if test -d "$tor_cv_library_openssl_dir/lib"; then tor_trydir="$tor_cv_library_openssl_dir/lib" else tor_trydir="$tor_cv_library_openssl_dir" fi for tor_tryextra in "(none)" "-Wl,-R$tor_trydir" "-R$tor_trydir" \ "-Wl,-rpath,$tor_trydir" ; do if test "$tor_tryextra" = "(none)"; then LDFLAGS="$orig_LDFLAGS" else LDFLAGS="$tor_tryextra $orig_LDFLAGS" fi if test "$cross_compiling" = yes; then : { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error $? "cannot run test program while cross compiling See \`config.log' for more details" "$LINENO" 5; } else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ void RAND_add(const void *buf, int num, double entropy); int main () { RAND_add((void*)0,0,0); ; return 0; } _ACEOF if ac_fn_c_try_run "$LINENO"; then : runnable=yes else runnable=no fi rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ conftest.$ac_objext conftest.beam conftest.$ac_ext fi if test "$runnable" = yes; then tor_cv_library_openssl_linker_option=$tor_tryextra break fi done if test "$runnable" = no; then as_fn_error $? "Found linkable openssl in $tor_cv_library_openssl_dir, but it does not seem to run, even with -R. Maybe specify another using --with-openssl-dir}" "$LINENO" 5 fi LDFLAGS="$orig_LDFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_library_openssl_linker_option" >&5 $as_echo "$tor_cv_library_openssl_linker_option" >&6; } if test "$tor_cv_library_openssl_linker_option" != "(none)" ; then TOR_LDFLAGS_openssl="$TOR_LDFLAGS_openssl $tor_cv_library_openssl_linker_option" fi fi # cross-compile LIBS="$tor_saved_LIBS" LDFLAGS="$tor_saved_LDFLAGS" CPPFLAGS="$tor_saved_CPPFLAGS" if test "$enable_static_openssl" = "yes"; then if test "$tor_cv_library_openssl_dir" = "(system)"; then as_fn_error $? "\"You must specify an explicit --with-openssl-dir=x option when using --enable-static-openssl\"" "$LINENO" 5 else TOR_OPENSSL_LIBS="$TOR_LIBDIR_openssl/libssl.a $TOR_LIBDIR_openssl/libcrypto.a" fi else TOR_OPENSSL_LIBS="-lssl -lcrypto" fi save_LIBS="$LIBS" save_LDFLAGS="$LDFLAGS" save_CPPFLAGS="$CPPFLAGS" LIBS="$TOR_OPENSSL_LIBS $LIBS" LDFLAGS="$TOR_LDFLAGS_openssl $LDFLAGS" CPPFLAGS="$TOR_CPPFLAGS_openssl $CPPFLAGS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include #if !defined(LIBRESSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER < 0x1000100fL #error "too old" #endif int main () { ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : : else as_fn_error $? "OpenSSL is too old. We require 1.0.1 or later. You can specify a path to a newer one with --with-openssl-dir." "$LINENO" 5 fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include #include #if defined(OPENSSL_NO_EC) || defined(OPENSSL_NO_ECDH) || defined(OPENSSL_NO_ECDSA) #error "no ECC" #endif #if !defined(NID_X9_62_prime256v1) || !defined(NID_secp224r1) #error "curves unavailable" #endif int main () { ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : : else as_fn_error $? "OpenSSL is built without full ECC support, including curves P256 and P224. You can specify a path to one with ECC support with --with-openssl-dir." "$LINENO" 5 fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext ac_fn_c_check_member "$LINENO" "struct ssl_method_st" "get_cipher_by_char" "ac_cv_member_struct_ssl_method_st_get_cipher_by_char" "#include " if test "x$ac_cv_member_struct_ssl_method_st_get_cipher_by_char" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_STRUCT_SSL_METHOD_ST_GET_CIPHER_BY_CHAR 1 _ACEOF fi for ac_func in \ SSL_SESSION_get_master_key \ SSL_get_server_random \ SSL_get_client_ciphers \ SSL_get_client_random \ SSL_CIPHER_find \ TLS_method do : as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" if eval test \"x\$"$as_ac_var"\" = x"yes"; then : cat >>confdefs.h <<_ACEOF #define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 _ACEOF fi done for ac_func in EVP_PBE_scrypt do : as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh` ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var" if eval test \"x\$"$as_ac_var"\" = x"yes"; then : cat >>confdefs.h <<_ACEOF #define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1 _ACEOF fi done ac_fn_c_check_member "$LINENO" "SSL" "state" "ac_cv_member_SSL_state" "#include " if test "x$ac_cv_member_SSL_state" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_SSL_STATE 1 _ACEOF fi LIBS="$save_LIBS" LDFLAGS="$save_LDFLAGS" CPPFLAGS="$save_CPPFLAGS" tor_zlib_pkg_redhat="zlib" tor_zlib_pkg_debian="zlib1g" tor_zlib_devpkg_redhat="zlib-devel" tor_zlib_devpkg_debian="zlib1g-dev" tryzlibdir="" # Check whether --with-zlib-dir was given. if test "${with_zlib_dir+set}" = set; then : withval=$with_zlib_dir; if test x$withval != xno ; then tryzlibdir="$withval" fi fi if test "x$tryzlibdir" = x && test "x$ALT_zlib_WITHVAL" != x ; then tryzlibdir="$ALT_zlib_WITHVAL" fi tor_saved_LIBS="$LIBS" tor_saved_LDFLAGS="$LDFLAGS" tor_saved_CPPFLAGS="$CPPFLAGS" { $as_echo "$as_me:${as_lineno-$LINENO}: checking for zlib directory" >&5 $as_echo_n "checking for zlib directory... " >&6; } if ${tor_cv_library_zlib_dir+:} false; then : $as_echo_n "(cached) " >&6 else tor_zlib_dir_found=no tor_zlib_any_linkable=no for tor_trydir in "$tryzlibdir" "(system)" "$prefix" /usr/local /usr/pkg /opt/zlib; do LDFLAGS="$tor_saved_LDFLAGS" LIBS="$tor_saved_LIBS -lz" CPPFLAGS="$tor_saved_CPPFLAGS" if test -z "$tor_trydir" ; then continue; fi # Skip the directory if it isn't there. if test ! -d "$tor_trydir" && test "$tor_trydir" != "(system)"; then continue; fi # If this isn't blank, try adding the directory (or appropriate # include/libs subdirectories) to the command line. if test "$tor_trydir" != "(system)"; then if test -d "$tor_trydir/lib"; then LDFLAGS="-L$tor_trydir/lib $LDFLAGS" else LDFLAGS="-L$tor_trydir $LDFLAGS" fi if test -d "$tor_trydir/include"; then CPPFLAGS="-I$tor_trydir/include $CPPFLAGS" else CPPFLAGS="-I$tor_trydir $CPPFLAGS" fi fi # Can we link against (but not necessarily run, or find the headers for) # the binary? cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ const char * zlibVersion(void); int main () { zlibVersion(); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : linkable=yes else linkable=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext if test "$linkable" = yes; then tor_zlib_any_linkable=yes # Okay, we can link against it. Can we find the headers? cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include int main () { zlibVersion(); ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : buildable=yes else buildable=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test "$buildable" = yes; then tor_cv_library_zlib_dir=$tor_trydir tor_zlib_dir_found=yes break fi fi done if test "$tor_zlib_dir_found" = no; then if test "$tor_zlib_any_linkable" = no ; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Could not find a linkable zlib. If you have it installed somewhere unusual, you can specify an explicit path using --with-zlib-dir" >&5 $as_echo "$as_me: WARNING: Could not find a linkable zlib. If you have it installed somewhere unusual, you can specify an explicit path using --with-zlib-dir" >&2;} h="" if test xpkg = xdevpkg; then h=" headers for" fi if test -f /etc/debian_version && test x"$tor_zlib_pkg_debian" != x; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: On Debian, you can install$h zlib using \"apt-get install $tor_zlib_pkg_debian\"" >&5 $as_echo "$as_me: WARNING: On Debian, you can install$h zlib using \"apt-get install $tor_zlib_pkg_debian\"" >&2;} if test x"$tor_zlib_pkg_debian" != x"$tor_zlib_devpkg_debian"; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: You will probably need $tor_zlib_devpkg_debian too." >&5 $as_echo "$as_me: WARNING: You will probably need $tor_zlib_devpkg_debian too." >&2;} fi fi if test -f /etc/fedora-release && test x"$tor_zlib_pkg_redhat" != x; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: On Fedora, you can install$h zlib using \"dnf install $tor_zlib_pkg_redhat\"" >&5 $as_echo "$as_me: WARNING: On Fedora, you can install$h zlib using \"dnf install $tor_zlib_pkg_redhat\"" >&2;} if test x"$tor_zlib_pkg_redhat" != x"$tor_zlib_devpkg_redhat"; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: You will probably need to install $tor_zlib_devpkg_redhat too." >&5 $as_echo "$as_me: WARNING: You will probably need to install $tor_zlib_devpkg_redhat too." >&2;} fi else if test -f /etc/redhat-release && test x"$tor_zlib_pkg_redhat" != x; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: On most Redhat-based systems, you can get$h zlib by installing the $tor_zlib_pkg_redhat RPM package" >&5 $as_echo "$as_me: WARNING: On most Redhat-based systems, you can get$h zlib by installing the $tor_zlib_pkg_redhat RPM package" >&2;} if test x"$tor_zlib_pkg_redhat" != x"$tor_zlib_devpkg_redhat"; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: You will probably need to install $tor_zlib_devpkg_redhat too." >&5 $as_echo "$as_me: WARNING: You will probably need to install $tor_zlib_devpkg_redhat too." >&2;} fi fi fi as_fn_error $? "Missing libraries; unable to proceed." "$LINENO" 5 else { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: We found the libraries for zlib, but we could not find the C header files. You may need to install a devel package." >&5 $as_echo "$as_me: WARNING: We found the libraries for zlib, but we could not find the C header files. You may need to install a devel package." >&2;} h="" if test xdevpkg = xdevpkg; then h=" headers for" fi if test -f /etc/debian_version && test x"$tor_zlib_devpkg_debian" != x; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: On Debian, you can install$h zlib using \"apt-get install $tor_zlib_devpkg_debian\"" >&5 $as_echo "$as_me: WARNING: On Debian, you can install$h zlib using \"apt-get install $tor_zlib_devpkg_debian\"" >&2;} if test x"$tor_zlib_devpkg_debian" != x"$tor_zlib_devpkg_debian"; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: You will probably need $tor_zlib_devpkg_debian too." >&5 $as_echo "$as_me: WARNING: You will probably need $tor_zlib_devpkg_debian too." >&2;} fi fi if test -f /etc/fedora-release && test x"$tor_zlib_devpkg_redhat" != x; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: On Fedora, you can install$h zlib using \"dnf install $tor_zlib_devpkg_redhat\"" >&5 $as_echo "$as_me: WARNING: On Fedora, you can install$h zlib using \"dnf install $tor_zlib_devpkg_redhat\"" >&2;} if test x"$tor_zlib_devpkg_redhat" != x"$tor_zlib_devpkg_redhat"; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: You will probably need to install $tor_zlib_devpkg_redhat too." >&5 $as_echo "$as_me: WARNING: You will probably need to install $tor_zlib_devpkg_redhat too." >&2;} fi else if test -f /etc/redhat-release && test x"$tor_zlib_devpkg_redhat" != x; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: On most Redhat-based systems, you can get$h zlib by installing the $tor_zlib_devpkg_redhat RPM package" >&5 $as_echo "$as_me: WARNING: On most Redhat-based systems, you can get$h zlib by installing the $tor_zlib_devpkg_redhat RPM package" >&2;} if test x"$tor_zlib_devpkg_redhat" != x"$tor_zlib_devpkg_redhat"; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: You will probably need to install $tor_zlib_devpkg_redhat too." >&5 $as_echo "$as_me: WARNING: You will probably need to install $tor_zlib_devpkg_redhat too." >&2;} fi fi fi as_fn_error $? "Missing headers; unable to proceed." "$LINENO" 5 fi fi LDFLAGS="$tor_saved_LDFLAGS" LIBS="$tor_saved_LIBS" CPPFLAGS="$tor_saved_CPPFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_library_zlib_dir" >&5 $as_echo "$tor_cv_library_zlib_dir" >&6; } LIBS="$LIBS -lz" if test "$tor_cv_library_zlib_dir" != "(system)"; then if test -d "$tor_cv_library_zlib_dir/lib"; then LDFLAGS="-L$tor_cv_library_zlib_dir/lib $LDFLAGS" else LDFLAGS="-L$tor_cv_library_zlib_dir $LDFLAGS" fi if test -d "$tor_cv_library_zlib_dir/include"; then CPPFLAGS="-I$tor_cv_library_zlib_dir/include $CPPFLAGS" else CPPFLAGS="-I$tor_cv_library_zlib_dir $CPPFLAGS" fi fi if test x$tor_cv_library_zlib_dir = "x(system)"; then TOR_LDFLAGS_zlib="" TOR_CPPFLAGS_zlib="" else if test -d "$tor_cv_library_zlib_dir/lib"; then TOR_LDFLAGS_zlib="-L$tor_cv_library_zlib_dir/lib" TOR_LIBDIR_zlib="$tor_cv_library_zlib_dir/lib" else TOR_LDFLAGS_zlib="-L$tor_cv_library_zlib_dir" TOR_LIBDIR_zlib="$tor_cv_library_zlib_dir" fi if test -d "$tor_cv_library_zlib_dir/include"; then TOR_CPPFLAGS_zlib="-I$tor_cv_library_zlib_dir/include" else TOR_CPPFLAGS_zlib="-I$tor_cv_library_zlib_dir" fi fi if test "$cross_compiling" != yes; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we need extra options to link zlib" >&5 $as_echo_n "checking whether we need extra options to link zlib... " >&6; } if ${tor_cv_library_zlib_linker_option+:} false; then : $as_echo_n "(cached) " >&6 else orig_LDFLAGS="$LDFLAGS" runs=no linked_with=nothing if test -d "$tor_cv_library_zlib_dir/lib"; then tor_trydir="$tor_cv_library_zlib_dir/lib" else tor_trydir="$tor_cv_library_zlib_dir" fi for tor_tryextra in "(none)" "-Wl,-R$tor_trydir" "-R$tor_trydir" \ "-Wl,-rpath,$tor_trydir" ; do if test "$tor_tryextra" = "(none)"; then LDFLAGS="$orig_LDFLAGS" else LDFLAGS="$tor_tryextra $orig_LDFLAGS" fi if test "$cross_compiling" = yes; then : { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error $? "cannot run test program while cross compiling See \`config.log' for more details" "$LINENO" 5; } else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ const char * zlibVersion(void); int main () { zlibVersion(); ; return 0; } _ACEOF if ac_fn_c_try_run "$LINENO"; then : runnable=yes else runnable=no fi rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ conftest.$ac_objext conftest.beam conftest.$ac_ext fi if test "$runnable" = yes; then tor_cv_library_zlib_linker_option=$tor_tryextra break fi done if test "$runnable" = no; then as_fn_error $? "Found linkable zlib in $tor_cv_library_zlib_dir, but it does not seem to run, even with -R. Maybe specify another using --with-zlib-dir}" "$LINENO" 5 fi LDFLAGS="$orig_LDFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_library_zlib_linker_option" >&5 $as_echo "$tor_cv_library_zlib_linker_option" >&6; } if test "$tor_cv_library_zlib_linker_option" != "(none)" ; then TOR_LDFLAGS_zlib="$TOR_LDFLAGS_zlib $tor_cv_library_zlib_linker_option" fi fi # cross-compile LIBS="$tor_saved_LIBS" LDFLAGS="$tor_saved_LDFLAGS" CPPFLAGS="$tor_saved_CPPFLAGS" if test "$enable_static_zlib" = "yes"; then if test "$tor_cv_library_zlib_dir" = "(system)"; then as_fn_error $? "\"You must specify an explicit --with-zlib-dir=x option when using --enable-static-zlib\"" "$LINENO" 5 else TOR_ZLIB_LIBS="$TOR_LIBDIR_zlib/libz.a" fi else TOR_ZLIB_LIBS="-lz" fi tor_cap_pkg_debian="libcap2" tor_cap_pkg_redhat="libcap" tor_cap_devpkg_debian="libcap-dev" tor_cap_devpkg_redhat="libcap-devel" { $as_echo "$as_me:${as_lineno-$LINENO}: checking for cap_init in -lcap" >&5 $as_echo_n "checking for cap_init in -lcap... " >&6; } if ${ac_cv_lib_cap_cap_init+:} false; then : $as_echo_n "(cached) " >&6 else ac_check_lib_save_LIBS=$LIBS LIBS="-lcap $LIBS" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char cap_init (); int main () { return cap_init (); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : ac_cv_lib_cap_cap_init=yes else ac_cv_lib_cap_cap_init=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LIBS=$ac_check_lib_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_cap_cap_init" >&5 $as_echo "$ac_cv_lib_cap_cap_init" >&6; } if test "x$ac_cv_lib_cap_cap_init" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_LIBCAP 1 _ACEOF LIBS="-lcap $LIBS" else { $as_echo "$as_me:${as_lineno-$LINENO}: Libcap was not found. Capabilities will not be usable." >&5 $as_echo "$as_me: Libcap was not found. Capabilities will not be usable." >&6;} fi for ac_func in cap_set_proc do : ac_fn_c_check_func "$LINENO" "cap_set_proc" "ac_cv_func_cap_set_proc" if test "x$ac_cv_func_cap_set_proc" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_CAP_SET_PROC 1 _ACEOF fi done all_ldflags_for_check="$TOR_LDFLAGS_zlib $TOR_LDFLAGS_openssl $TOR_LDFLAGS_libevent" all_libs_for_check="$TOR_ZLIB_LIBS $TOR_LIB_MATH $TOR_LIBEVENT_LIBS $TOR_OPENSSL_LIBS $TOR_SYSTEMD_LIBS $TOR_LIB_WS32 $TOR_LIB_GDI $TOR_CAP_LIBS" CFLAGS_FTRAPV= CFLAGS_FWRAPV= CFLAGS_ASAN= CFLAGS_UBSAN= cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { #if !defined(__clang__) #error #endif ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : have_clang=yes else have_clang=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test "x$enable_gcc_hardening" != "xno"; then CFLAGS="$CFLAGS -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2" if test "x$have_clang" = "xyes"; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Qunused-arguments" >&5 $as_echo_n "checking whether the compiler accepts -Qunused-arguments... " >&6; } if ${tor_cv_cflags__Qunused_arguments+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Qunused-arguments" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Qunused_arguments=yes else tor_cv_cflags__Qunused_arguments=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Qunused_arguments=yes else tor_can_link__Qunused_arguments=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Qunused_arguments" >&5 $as_echo "$tor_cv_cflags__Qunused_arguments" >&6; } if test x$tor_cv_cflags__Qunused_arguments = xyes; then CFLAGS="$CFLAGS -Qunused-arguments" else true fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -fstack-protector-all" >&5 $as_echo_n "checking whether the compiler accepts -fstack-protector-all... " >&6; } if ${tor_cv_cflags__fstack_protector_all+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -fstack-protector-all" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__fstack_protector_all=yes else tor_cv_cflags__fstack_protector_all=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test xalso_link != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__fstack_protector_all=yes else tor_can_link__fstack_protector_all=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__fstack_protector_all" >&5 $as_echo "$tor_cv_cflags__fstack_protector_all" >&6; } if test x$tor_cv_cflags__fstack_protector_all = xyes; then CFLAGS="$CFLAGS -fstack-protector-all" else true fi if test "x$tor_cv_cflags__fstack_protector_all" = xyes; then : if test "x$tor_can_link__fstack_protector_all" = xyes; then : else as_fn_error $? "We tried to build with stack protection; it looks like your compiler supports it but your libc does not provide it. Are you missing libssp? (You can --disable-gcc-hardening to ignore this error.)" "$LINENO" 5 fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wstack-protector" >&5 $as_echo_n "checking whether the compiler accepts -Wstack-protector... " >&6; } if ${tor_cv_cflags__Wstack_protector+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wstack-protector" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wstack_protector=yes else tor_cv_cflags__Wstack_protector=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wstack_protector=yes else tor_can_link__Wstack_protector=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wstack_protector" >&5 $as_echo "$tor_cv_cflags__Wstack_protector" >&6; } if test x$tor_cv_cflags__Wstack_protector = xyes; then CFLAGS="$CFLAGS -Wstack-protector" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts --param ssp-buffer-size=1" >&5 $as_echo_n "checking whether the compiler accepts --param ssp-buffer-size=1... " >&6; } if ${tor_cv_cflags___param_ssp_buffer_size_1+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror --param ssp-buffer-size=1" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags___param_ssp_buffer_size_1=yes else tor_cv_cflags___param_ssp_buffer_size_1=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link___param_ssp_buffer_size_1=yes else tor_can_link___param_ssp_buffer_size_1=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags___param_ssp_buffer_size_1" >&5 $as_echo "$tor_cv_cflags___param_ssp_buffer_size_1" >&6; } if test x$tor_cv_cflags___param_ssp_buffer_size_1 = xyes; then CFLAGS="$CFLAGS --param ssp-buffer-size=1" else true fi if test "$bwin32" = "false"; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -fPIE" >&5 $as_echo_n "checking whether the compiler accepts -fPIE... " >&6; } if ${tor_cv_cflags__fPIE+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -fPIE" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__fPIE=yes else tor_cv_cflags__fPIE=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__fPIE=yes else tor_can_link__fPIE=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__fPIE" >&5 $as_echo "$tor_cv_cflags__fPIE" >&6; } if test x$tor_cv_cflags__fPIE = xyes; then CFLAGS="$CFLAGS -fPIE" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the linker accepts -pie" >&5 $as_echo_n "checking whether the linker accepts -pie... " >&6; } if ${tor_cv_ldflags__pie+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" tor_saved_LDFLAGS="$LDFLAGS" tor_saved_LIBS="$LIBS" CFLAGS="$CFLAGS -pedantic -Werror" LDFLAGS="$LDFLAGS "$all_ldflags_for_check" -pie" LIBS="$LIBS "$all_libs_for_check"" if test "$cross_compiling" = yes; then : cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_cv_ldflags__pie=yes else tor_cv_ldflags__pie=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include int main () { fputs("", stdout) ; return 0; } _ACEOF if ac_fn_c_try_run "$LINENO"; then : tor_cv_ldflags__pie=yes else tor_cv_ldflags__pie=no fi rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ conftest.$ac_objext conftest.beam conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" LDFLAGS="$tor_saved_LDFLAGS" LIBS="$tor_saved_LIBS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_ldflags__pie" >&5 $as_echo "$tor_cv_ldflags__pie" >&6; } if test x$tor_cv_ldflags__pie = xyes; then LDFLAGS="$LDFLAGS -pie" fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -fwrapv" >&5 $as_echo_n "checking whether the compiler accepts -fwrapv... " >&6; } if ${tor_cv_cflags__fwrapv+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -fwrapv" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__fwrapv=yes else tor_cv_cflags__fwrapv=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test xalso_link != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__fwrapv=yes else tor_can_link__fwrapv=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__fwrapv" >&5 $as_echo "$tor_cv_cflags__fwrapv" >&6; } if test x$tor_cv_cflags__fwrapv = xyes; then CFLAGS_FWRAPV="-fwrapv" else true fi fi if test "x$enable_expensive_hardening" = "xyes"; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -ftrapv" >&5 $as_echo_n "checking whether the compiler accepts -ftrapv... " >&6; } if ${tor_cv_cflags__ftrapv+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -ftrapv" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__ftrapv=yes else tor_cv_cflags__ftrapv=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test xalso_link != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__ftrapv=yes else tor_can_link__ftrapv=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__ftrapv" >&5 $as_echo "$tor_cv_cflags__ftrapv" >&6; } if test x$tor_cv_cflags__ftrapv = xyes; then CFLAGS_FTRAPV="-ftrapv" else true fi if test "$tor_cv_cflags__ftrapv" = "yes" && test "$tor_can_link__ftrapv" != "yes"; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: The compiler supports -ftrapv, but for some reason I was not able to link with -ftrapv. Are you missing run-time support? Run-time hardening will not work as well as it should." >&5 $as_echo "$as_me: WARNING: The compiler supports -ftrapv, but for some reason I was not able to link with -ftrapv. Are you missing run-time support? Run-time hardening will not work as well as it should." >&2;} fi if test "$tor_cv_cflags__ftrapv" != "yes"; then as_fn_error $? "You requested expensive hardening, but the compiler does not seem to support -ftrapv." "$LINENO" 5 fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -fsanitize=address" >&5 $as_echo_n "checking whether the compiler accepts -fsanitize=address... " >&6; } if ${tor_cv_cflags__fsanitize_address+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -fsanitize=address" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__fsanitize_address=yes else tor_cv_cflags__fsanitize_address=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test xalso_link != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__fsanitize_address=yes else tor_can_link__fsanitize_address=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__fsanitize_address" >&5 $as_echo "$tor_cv_cflags__fsanitize_address" >&6; } if test x$tor_cv_cflags__fsanitize_address = xyes; then CFLAGS_ASAN="-fsanitize=address" else true fi if test "$tor_cv_cflags__fsanitize_address" = "yes" && test "$tor_can_link__fsanitize_address" != "yes"; then as_fn_error $? "The compiler supports -fsanitize=address, but for some reason I was not able to link when using it. Are you missing run-time support? With GCC you need libubsan.so, and with Clang you need libclang_rt.ubsan*" "$LINENO" 5 fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -fsanitize=undefined" >&5 $as_echo_n "checking whether the compiler accepts -fsanitize=undefined... " >&6; } if ${tor_cv_cflags__fsanitize_undefined+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -fsanitize=undefined" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__fsanitize_undefined=yes else tor_cv_cflags__fsanitize_undefined=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test xalso_link != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__fsanitize_undefined=yes else tor_can_link__fsanitize_undefined=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__fsanitize_undefined" >&5 $as_echo "$tor_cv_cflags__fsanitize_undefined" >&6; } if test x$tor_cv_cflags__fsanitize_undefined = xyes; then CFLAGS_UBSAN="-fsanitize=undefined" else true fi if test "$tor_cv_cflags__fsanitize_address" = "yes" && test "$tor_can_link__fsanitize_address" != "yes"; then as_fn_error $? "The compiler supports -fsanitize=undefined, but for some reason I was not able to link when using it. Are you missing run-time support? With GCC you need libasan.so, and with Clang you need libclang_rt.ubsan*" "$LINENO" 5 fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -fno-omit-frame-pointer" >&5 $as_echo_n "checking whether the compiler accepts -fno-omit-frame-pointer... " >&6; } if ${tor_cv_cflags__fno_omit_frame_pointer+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -fno-omit-frame-pointer" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__fno_omit_frame_pointer=yes else tor_cv_cflags__fno_omit_frame_pointer=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__fno_omit_frame_pointer=yes else tor_can_link__fno_omit_frame_pointer=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__fno_omit_frame_pointer" >&5 $as_echo "$tor_cv_cflags__fno_omit_frame_pointer" >&6; } if test x$tor_cv_cflags__fno_omit_frame_pointer = xyes; then CFLAGS="$CFLAGS -fno-omit-frame-pointer" else true fi fi CFLAGS_BUGTRAP="$CFLAGS_FTRAPV $CFLAGS_ASAN $CFLAGS_UBSAN" CFLAGS_CONSTTIME="$CFLAGS_FWRAPV" mulodi_fixes_ftrapv=no if test "$have_clang" = "yes"; then saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS $CFLAGS_FTRAPV" { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether clang -ftrapv can link a 64-bit int multiply" >&5 $as_echo_n "checking whether clang -ftrapv can link a 64-bit int multiply... " >&6; } cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include #include int main(int argc, char **argv) { int64_t x = ((int64_t)atoi(argv[1])) * (int64_t)atoi(argv[2]) * (int64_t)atoi(argv[3]); return x == 9; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : ftrapv_can_link=yes; { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } else ftrapv_can_link=no; { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext if test "$ftrapv_can_link" = "no"; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether defining __mulodi4 fixes that" >&5 $as_echo_n "checking whether defining __mulodi4 fixes that... " >&6; } cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include #include int64_t __mulodi4(int64_t a, int64_t b, int *overflow) { *overflow=0; return a; } int main(int argc, char **argv) { int64_t x = ((int64_t)atoi(argv[1])) * (int64_t)atoi(argv[2]) * (int64_t)atoi(argv[3]); return x == 9; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : mulodi_fixes_ftrapv=yes; { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } else mulodi_fixes_ftrapv=no; { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$saved_CFLAGS" fi if test "$mulodi_fixes_ftrapv" = "yes"; then ADD_MULODI4_TRUE= ADD_MULODI4_FALSE='#' else ADD_MULODI4_TRUE='#' ADD_MULODI4_FALSE= fi if test "x$enable_linker_hardening" != "xno"; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the linker accepts -z relro -z now" >&5 $as_echo_n "checking whether the linker accepts -z relro -z now... " >&6; } if ${tor_cv_ldflags__z_relro__z_now+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" tor_saved_LDFLAGS="$LDFLAGS" tor_saved_LIBS="$LIBS" CFLAGS="$CFLAGS -pedantic -Werror" LDFLAGS="$LDFLAGS "$all_ldflags_for_check" -z relro -z now" LIBS="$LIBS "$all_libs_for_check"" if test "$cross_compiling" = yes; then : cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_cv_ldflags__z_relro__z_now=yes else tor_cv_ldflags__z_relro__z_now=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include int main () { fputs("", stdout) ; return 0; } _ACEOF if ac_fn_c_try_run "$LINENO"; then : tor_cv_ldflags__z_relro__z_now=yes else tor_cv_ldflags__z_relro__z_now=no fi rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ conftest.$ac_objext conftest.beam conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" LDFLAGS="$tor_saved_LDFLAGS" LIBS="$tor_saved_LIBS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_ldflags__z_relro__z_now" >&5 $as_echo "$tor_cv_ldflags__z_relro__z_now" >&6; } if test x$tor_cv_ldflags__z_relro__z_now = xyes; then LDFLAGS="$LDFLAGS -z relro -z now" fi fi # For backtrace support { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the linker accepts -rdynamic" >&5 $as_echo_n "checking whether the linker accepts -rdynamic... " >&6; } if ${tor_cv_ldflags__rdynamic+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" tor_saved_LDFLAGS="$LDFLAGS" tor_saved_LIBS="$LIBS" CFLAGS="$CFLAGS -pedantic -Werror" LDFLAGS="$LDFLAGS -rdynamic" LIBS="$LIBS " if test "$cross_compiling" = yes; then : cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_cv_ldflags__rdynamic=yes else tor_cv_ldflags__rdynamic=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include int main () { fputs("", stdout) ; return 0; } _ACEOF if ac_fn_c_try_run "$LINENO"; then : tor_cv_ldflags__rdynamic=yes else tor_cv_ldflags__rdynamic=no fi rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ conftest.$ac_objext conftest.beam conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" LDFLAGS="$tor_saved_LDFLAGS" LIBS="$tor_saved_LIBS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_ldflags__rdynamic" >&5 $as_echo "$tor_cv_ldflags__rdynamic" >&6; } if test x$tor_cv_ldflags__rdynamic = xyes; then LDFLAGS="$LDFLAGS -rdynamic" fi saved_CFLAGS="$CFLAGS" { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -fomit-frame-pointer" >&5 $as_echo_n "checking whether the compiler accepts -fomit-frame-pointer... " >&6; } if ${tor_cv_cflags__fomit_frame_pointer+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -fomit-frame-pointer" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__fomit_frame_pointer=yes else tor_cv_cflags__fomit_frame_pointer=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__fomit_frame_pointer=yes else tor_can_link__fomit_frame_pointer=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__fomit_frame_pointer" >&5 $as_echo "$tor_cv_cflags__fomit_frame_pointer" >&6; } if test x$tor_cv_cflags__fomit_frame_pointer = xyes; then CFLAGS="$CFLAGS -fomit-frame-pointer" else true fi F_OMIT_FRAME_POINTER='' if test "$saved_CFLAGS" != "$CFLAGS"; then if test "x$enable_expensive_hardening" != "xyes"; then F_OMIT_FRAME_POINTER='-fomit-frame-pointer' fi fi CFLAGS="$saved_CFLAGS" { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -fasynchronous-unwind-tables" >&5 $as_echo_n "checking whether the compiler accepts -fasynchronous-unwind-tables... " >&6; } if ${tor_cv_cflags__fasynchronous_unwind_tables+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -fasynchronous-unwind-tables" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__fasynchronous_unwind_tables=yes else tor_cv_cflags__fasynchronous_unwind_tables=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__fasynchronous_unwind_tables=yes else tor_can_link__fasynchronous_unwind_tables=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__fasynchronous_unwind_tables" >&5 $as_echo "$tor_cv_cflags__fasynchronous_unwind_tables" >&6; } if test x$tor_cv_cflags__fasynchronous_unwind_tables = xyes; then CFLAGS="$CFLAGS -fasynchronous-unwind-tables" else true fi if test "x$enable_seccomp" != "xno"; then for ac_header in seccomp.h do : ac_fn_c_check_header_mongrel "$LINENO" "seccomp.h" "ac_cv_header_seccomp_h" "$ac_includes_default" if test "x$ac_cv_header_seccomp_h" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_SECCOMP_H 1 _ACEOF fi done { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing seccomp_init" >&5 $as_echo_n "checking for library containing seccomp_init... " >&6; } if ${ac_cv_search_seccomp_init+:} false; then : $as_echo_n "(cached) " >&6 else ac_func_search_save_LIBS=$LIBS cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char seccomp_init (); int main () { return seccomp_init (); ; return 0; } _ACEOF for ac_lib in '' seccomp; do if test -z "$ac_lib"; then ac_res="none required" else ac_res=-l$ac_lib LIBS="-l$ac_lib $ac_func_search_save_LIBS" fi if ac_fn_c_try_link "$LINENO"; then : ac_cv_search_seccomp_init=$ac_res fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext if ${ac_cv_search_seccomp_init+:} false; then : break fi done if ${ac_cv_search_seccomp_init+:} false; then : else ac_cv_search_seccomp_init=no fi rm conftest.$ac_ext LIBS=$ac_func_search_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_seccomp_init" >&5 $as_echo "$ac_cv_search_seccomp_init" >&6; } ac_res=$ac_cv_search_seccomp_init if test "$ac_res" != no; then : test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" fi fi if test "x$enable_libscrypt" != "xno"; then for ac_header in libscrypt.h do : ac_fn_c_check_header_mongrel "$LINENO" "libscrypt.h" "ac_cv_header_libscrypt_h" "$ac_includes_default" if test "x$ac_cv_header_libscrypt_h" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_LIBSCRYPT_H 1 _ACEOF fi done { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing libscrypt_scrypt" >&5 $as_echo_n "checking for library containing libscrypt_scrypt... " >&6; } if ${ac_cv_search_libscrypt_scrypt+:} false; then : $as_echo_n "(cached) " >&6 else ac_func_search_save_LIBS=$LIBS cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ /* Override any GCC internal prototype to avoid an error. Use char because int might match the return type of a GCC builtin and then its argument prototype would still apply. */ #ifdef __cplusplus extern "C" #endif char libscrypt_scrypt (); int main () { return libscrypt_scrypt (); ; return 0; } _ACEOF for ac_lib in '' scrypt; do if test -z "$ac_lib"; then ac_res="none required" else ac_res=-l$ac_lib LIBS="-l$ac_lib $ac_func_search_save_LIBS" fi if ac_fn_c_try_link "$LINENO"; then : ac_cv_search_libscrypt_scrypt=$ac_res fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext if ${ac_cv_search_libscrypt_scrypt+:} false; then : break fi done if ${ac_cv_search_libscrypt_scrypt+:} false; then : else ac_cv_search_libscrypt_scrypt=no fi rm conftest.$ac_ext LIBS=$ac_func_search_save_LIBS fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_libscrypt_scrypt" >&5 $as_echo "$ac_cv_search_libscrypt_scrypt" >&6; } ac_res=$ac_cv_search_libscrypt_scrypt if test "$ac_res" != no; then : test "$ac_res" = "none required" || LIBS="$ac_res $LIBS" fi for ac_func in libscrypt_scrypt do : ac_fn_c_check_func "$LINENO" "libscrypt_scrypt" "ac_cv_func_libscrypt_scrypt" if test "x$ac_cv_func_libscrypt_scrypt" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_LIBSCRYPT_SCRYPT 1 _ACEOF fi done fi build_curve25519_donna=no build_curve25519_donna_c64=no use_curve25519_donna=no use_curve25519_nacl=no CURVE25519_LIBS= { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we can use curve25519-donna-c64" >&5 $as_echo_n "checking whether we can use curve25519-donna-c64... " >&6; } if ${tor_cv_can_use_curve25519_donna_c64+:} false; then : $as_echo_n "(cached) " >&6 else if test "$cross_compiling" = yes; then : cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include typedef unsigned uint128_t __attribute__((mode(TI))); int func(uint64_t a, uint64_t b) { uint128_t c = ((uint128_t)a) * b; int ok = ((uint64_t)(c>>96)) == 522859 && (((uint64_t)(c>>64))&0xffffffffL) == 3604448702L && (((uint64_t)(c>>32))&0xffffffffL) == 2351960064L && (((uint64_t)(c))&0xffffffffL) == 0; return ok; } int main () { int ok = func( ((uint64_t)2000000000) * 1000000000, ((uint64_t)1234567890) << 24); return !ok; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_cv_can_use_curve25519_donna_c64=cross else tor_cv_can_use_curve25519_donna_c64=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include typedef unsigned uint128_t __attribute__((mode(TI))); int func(uint64_t a, uint64_t b) { uint128_t c = ((uint128_t)a) * b; int ok = ((uint64_t)(c>>96)) == 522859 && (((uint64_t)(c>>64))&0xffffffffL) == 3604448702L && (((uint64_t)(c>>32))&0xffffffffL) == 2351960064L && (((uint64_t)(c))&0xffffffffL) == 0; return ok; } int main () { int ok = func( ((uint64_t)2000000000) * 1000000000, ((uint64_t)1234567890) << 24); return !ok; ; return 0; } _ACEOF if ac_fn_c_try_run "$LINENO"; then : tor_cv_can_use_curve25519_donna_c64=yes else tor_cv_can_use_curve25519_donna_c64=no fi rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ conftest.$ac_objext conftest.beam conftest.$ac_ext fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_can_use_curve25519_donna_c64" >&5 $as_echo "$tor_cv_can_use_curve25519_donna_c64" >&6; } for ac_header in crypto_scalarmult_curve25519.h \ nacl/crypto_scalarmult_curve25519.h do : as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default" if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : cat >>confdefs.h <<_ACEOF #define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 _ACEOF fi done { $as_echo "$as_me:${as_lineno-$LINENO}: checking for nacl compiled with a fast curve25519 implementation" >&5 $as_echo_n "checking for nacl compiled with a fast curve25519 implementation... " >&6; } if ${tor_cv_can_use_curve25519_nacl+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_LIBS="$LIBS" LIBS="$LIBS -lnacl" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #ifdef HAVE_CRYPTO_SCALARMULT_CURVE25519_H #include #elif defined(HAVE_NACL_CRYPTO_SCALARMULT_CURVE25519_H) #include #endif #ifdef crypto_scalarmult_curve25519_ref_BYTES #error Hey, this is the reference implementation! That's not fast. #endif int main () { unsigned char *a, *b, *c; crypto_scalarmult_curve25519(a,b,c); ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_cv_can_use_curve25519_nacl=yes else tor_cv_can_use_curve25519_nacl=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LIBS="$tor_saved_LIBS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_can_use_curve25519_nacl" >&5 $as_echo "$tor_cv_can_use_curve25519_nacl" >&6; } if test "x$tor_cv_can_use_curve25519_donna_c64" != "xno"; then build_curve25519_donna_c64=yes use_curve25519_donna=yes elif test "x$tor_cv_can_use_curve25519_nacl" = "xyes"; then use_curve25519_nacl=yes CURVE25519_LIBS=-lnacl else build_curve25519_donna=yes use_curve25519_donna=yes fi if test "x$use_curve25519_donna" = "xyes"; then $as_echo "#define USE_CURVE25519_DONNA 1" >>confdefs.h fi if test "x$use_curve25519_nacl" = "xyes"; then $as_echo "#define USE_CURVE25519_NACL 1" >>confdefs.h fi if test "x$build_curve25519_donna" = "xyes"; then BUILD_CURVE25519_DONNA_TRUE= BUILD_CURVE25519_DONNA_FALSE='#' else BUILD_CURVE25519_DONNA_TRUE='#' BUILD_CURVE25519_DONNA_FALSE= fi if test "x$build_curve25519_donna_c64" = "xyes"; then BUILD_CURVE25519_DONNA_C64_TRUE= BUILD_CURVE25519_DONNA_C64_FALSE='#' else BUILD_CURVE25519_DONNA_C64_TRUE='#' BUILD_CURVE25519_DONNA_C64_FALSE= fi # Check whether --enable-largefile was given. if test "${enable_largefile+set}" = set; then : enableval=$enable_largefile; fi if test "$enable_largefile" != no; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking for special C compiler options needed for large files" >&5 $as_echo_n "checking for special C compiler options needed for large files... " >&6; } if ${ac_cv_sys_largefile_CC+:} false; then : $as_echo_n "(cached) " >&6 else ac_cv_sys_largefile_CC=no if test "$GCC" != yes; then ac_save_CC=$CC while :; do # IRIX 6.2 and later do not support large files by default, # so use the C compiler's -n32 option if that helps. cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include /* Check that off_t can represent 2**63 - 1 correctly. We can't simply define LARGE_OFF_T to be 9223372036854775807, since some C++ compilers masquerading as C compilers incorrectly reject 9223372036854775807. */ #define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 && LARGE_OFF_T % 2147483647 == 1) ? 1 : -1]; int main () { ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : break fi rm -f core conftest.err conftest.$ac_objext CC="$CC -n32" if ac_fn_c_try_compile "$LINENO"; then : ac_cv_sys_largefile_CC=' -n32'; break fi rm -f core conftest.err conftest.$ac_objext break done CC=$ac_save_CC rm -f conftest.$ac_ext fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_largefile_CC" >&5 $as_echo "$ac_cv_sys_largefile_CC" >&6; } if test "$ac_cv_sys_largefile_CC" != no; then CC=$CC$ac_cv_sys_largefile_CC fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _FILE_OFFSET_BITS value needed for large files" >&5 $as_echo_n "checking for _FILE_OFFSET_BITS value needed for large files... " >&6; } if ${ac_cv_sys_file_offset_bits+:} false; then : $as_echo_n "(cached) " >&6 else while :; do cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include /* Check that off_t can represent 2**63 - 1 correctly. We can't simply define LARGE_OFF_T to be 9223372036854775807, since some C++ compilers masquerading as C compilers incorrectly reject 9223372036854775807. */ #define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 && LARGE_OFF_T % 2147483647 == 1) ? 1 : -1]; int main () { ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : ac_cv_sys_file_offset_bits=no; break fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #define _FILE_OFFSET_BITS 64 #include /* Check that off_t can represent 2**63 - 1 correctly. We can't simply define LARGE_OFF_T to be 9223372036854775807, since some C++ compilers masquerading as C compilers incorrectly reject 9223372036854775807. */ #define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 && LARGE_OFF_T % 2147483647 == 1) ? 1 : -1]; int main () { ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : ac_cv_sys_file_offset_bits=64; break fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext ac_cv_sys_file_offset_bits=unknown break done fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_file_offset_bits" >&5 $as_echo "$ac_cv_sys_file_offset_bits" >&6; } case $ac_cv_sys_file_offset_bits in #( no | unknown) ;; *) cat >>confdefs.h <<_ACEOF #define _FILE_OFFSET_BITS $ac_cv_sys_file_offset_bits _ACEOF ;; esac rm -rf conftest* if test $ac_cv_sys_file_offset_bits = unknown; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _LARGE_FILES value needed for large files" >&5 $as_echo_n "checking for _LARGE_FILES value needed for large files... " >&6; } if ${ac_cv_sys_large_files+:} false; then : $as_echo_n "(cached) " >&6 else while :; do cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include /* Check that off_t can represent 2**63 - 1 correctly. We can't simply define LARGE_OFF_T to be 9223372036854775807, since some C++ compilers masquerading as C compilers incorrectly reject 9223372036854775807. */ #define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 && LARGE_OFF_T % 2147483647 == 1) ? 1 : -1]; int main () { ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : ac_cv_sys_large_files=no; break fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #define _LARGE_FILES 1 #include /* Check that off_t can represent 2**63 - 1 correctly. We can't simply define LARGE_OFF_T to be 9223372036854775807, since some C++ compilers masquerading as C compilers incorrectly reject 9223372036854775807. */ #define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 && LARGE_OFF_T % 2147483647 == 1) ? 1 : -1]; int main () { ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : ac_cv_sys_large_files=1; break fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext ac_cv_sys_large_files=unknown break done fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_large_files" >&5 $as_echo "$ac_cv_sys_large_files" >&6; } case $ac_cv_sys_large_files in #( no | unknown) ;; *) cat >>confdefs.h <<_ACEOF #define _LARGE_FILES $ac_cv_sys_large_files _ACEOF ;; esac rm -rf conftest* fi fi for ac_header in assert.h \ errno.h \ fcntl.h \ signal.h \ string.h \ sys/capability.h \ sys/fcntl.h \ sys/stat.h \ sys/time.h \ sys/types.h \ time.h \ unistd.h \ arpa/inet.h \ crt_externs.h \ execinfo.h \ grp.h \ ifaddrs.h \ inttypes.h \ limits.h \ linux/types.h \ machine/limits.h \ malloc.h \ malloc/malloc.h \ malloc_np.h \ netdb.h \ netinet/in.h \ netinet/in6.h \ pwd.h \ readpassphrase.h \ stdint.h \ sys/eventfd.h \ sys/file.h \ sys/ioctl.h \ sys/limits.h \ sys/mman.h \ sys/param.h \ sys/prctl.h \ sys/random.h \ sys/resource.h \ sys/select.h \ sys/socket.h \ sys/statvfs.h \ sys/syscall.h \ sys/sysctl.h \ sys/syslimits.h \ sys/time.h \ sys/types.h \ sys/un.h \ sys/utime.h \ sys/wait.h \ syslog.h \ utime.h do : as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default" if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : cat >>confdefs.h <<_ACEOF #define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 _ACEOF fi done for ac_header in sys/param.h do : ac_fn_c_check_header_mongrel "$LINENO" "sys/param.h" "ac_cv_header_sys_param_h" "$ac_includes_default" if test "x$ac_cv_header_sys_param_h" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_SYS_PARAM_H 1 _ACEOF fi done for ac_header in net/if.h do : ac_fn_c_check_header_compile "$LINENO" "net/if.h" "ac_cv_header_net_if_h" "#ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif " if test "x$ac_cv_header_net_if_h" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_NET_IF_H 1 _ACEOF net_if_found=1 else net_if_found=0 fi done for ac_header in net/pfvar.h do : ac_fn_c_check_header_compile "$LINENO" "net/pfvar.h" "ac_cv_header_net_pfvar_h" "#ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef HAVE_NET_IF_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif " if test "x$ac_cv_header_net_pfvar_h" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_NET_PFVAR_H 1 _ACEOF net_pfvar_found=1 else net_pfvar_found=0 fi done for ac_header in linux/if.h do : ac_fn_c_check_header_compile "$LINENO" "linux/if.h" "ac_cv_header_linux_if_h" " #ifdef HAVE_SYS_SOCKET_H #include #endif " if test "x$ac_cv_header_linux_if_h" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_LINUX_IF_H 1 _ACEOF fi done for ac_header in linux/netfilter_ipv4.h do : ac_fn_c_check_header_compile "$LINENO" "linux/netfilter_ipv4.h" "ac_cv_header_linux_netfilter_ipv4_h" "#ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef HAVE_LIMITS_H #include #endif #ifdef HAVE_LINUX_TYPES_H #include #endif #ifdef HAVE_NETINET_IN6_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif " if test "x$ac_cv_header_linux_netfilter_ipv4_h" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_LINUX_NETFILTER_IPV4_H 1 _ACEOF linux_netfilter_ipv4=1 else linux_netfilter_ipv4=0 fi done for ac_header in linux/netfilter_ipv6/ip6_tables.h do : ac_fn_c_check_header_compile "$LINENO" "linux/netfilter_ipv6/ip6_tables.h" "ac_cv_header_linux_netfilter_ipv6_ip6_tables_h" "#ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef HAVE_LIMITS_H #include #endif #ifdef HAVE_LINUX_TYPES_H #include #endif #ifdef HAVE_NETINET_IN6_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_LINUX_IF_H #include #endif " if test "x$ac_cv_header_linux_netfilter_ipv6_ip6_tables_h" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_LINUX_NETFILTER_IPV6_IP6_TABLES_H 1 _ACEOF linux_netfilter_ipv6_ip6_tables=1 else linux_netfilter_ipv6_ip6_tables=0 fi done transparent_ok=0 if test "x$net_if_found" = "x1" && test "x$net_pfvar_found" = "x1"; then transparent_ok=1 fi if test "x$linux_netfilter_ipv4" = "x1"; then transparent_ok=1 fi if test "x$linux_netfilter_ipv6_ip6_tables" = "x1"; then transparent_ok=1 fi if test "x$transparent_ok" = "x1"; then $as_echo "#define USE_TRANSPARENT 1" >>confdefs.h case "$host" in *-*-openbsd* | *-*-bitrig*) $as_echo "#define OPENBSD 1" >>confdefs.h ;; esac else { $as_echo "$as_me:${as_lineno-$LINENO}: Transparent proxy support enabled, but missing headers." >&5 $as_echo "$as_me: Transparent proxy support enabled, but missing headers." >&6;} fi ac_fn_c_check_member "$LINENO" "struct timeval" "tv_sec" "ac_cv_member_struct_timeval_tv_sec" "#ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_SYS_TIME_H #include #endif " if test "x$ac_cv_member_struct_timeval_tv_sec" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_STRUCT_TIMEVAL_TV_SEC 1 _ACEOF fi # The cast to long int works around a bug in the HP C Compiler # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. # This bug is HP SR number 8606223364. { $as_echo "$as_me:${as_lineno-$LINENO}: checking size of int8_t" >&5 $as_echo_n "checking size of int8_t... " >&6; } if ${ac_cv_sizeof_int8_t+:} false; then : $as_echo_n "(cached) " >&6 else if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (int8_t))" "ac_cv_sizeof_int8_t" "$ac_includes_default"; then : else if test "$ac_cv_type_int8_t" = yes; then { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error 77 "cannot compute sizeof (int8_t) See \`config.log' for more details" "$LINENO" 5; } else ac_cv_sizeof_int8_t=0 fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_int8_t" >&5 $as_echo "$ac_cv_sizeof_int8_t" >&6; } cat >>confdefs.h <<_ACEOF #define SIZEOF_INT8_T $ac_cv_sizeof_int8_t _ACEOF # The cast to long int works around a bug in the HP C Compiler # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. # This bug is HP SR number 8606223364. { $as_echo "$as_me:${as_lineno-$LINENO}: checking size of int16_t" >&5 $as_echo_n "checking size of int16_t... " >&6; } if ${ac_cv_sizeof_int16_t+:} false; then : $as_echo_n "(cached) " >&6 else if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (int16_t))" "ac_cv_sizeof_int16_t" "$ac_includes_default"; then : else if test "$ac_cv_type_int16_t" = yes; then { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error 77 "cannot compute sizeof (int16_t) See \`config.log' for more details" "$LINENO" 5; } else ac_cv_sizeof_int16_t=0 fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_int16_t" >&5 $as_echo "$ac_cv_sizeof_int16_t" >&6; } cat >>confdefs.h <<_ACEOF #define SIZEOF_INT16_T $ac_cv_sizeof_int16_t _ACEOF # The cast to long int works around a bug in the HP C Compiler # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. # This bug is HP SR number 8606223364. { $as_echo "$as_me:${as_lineno-$LINENO}: checking size of int32_t" >&5 $as_echo_n "checking size of int32_t... " >&6; } if ${ac_cv_sizeof_int32_t+:} false; then : $as_echo_n "(cached) " >&6 else if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (int32_t))" "ac_cv_sizeof_int32_t" "$ac_includes_default"; then : else if test "$ac_cv_type_int32_t" = yes; then { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error 77 "cannot compute sizeof (int32_t) See \`config.log' for more details" "$LINENO" 5; } else ac_cv_sizeof_int32_t=0 fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_int32_t" >&5 $as_echo "$ac_cv_sizeof_int32_t" >&6; } cat >>confdefs.h <<_ACEOF #define SIZEOF_INT32_T $ac_cv_sizeof_int32_t _ACEOF # The cast to long int works around a bug in the HP C Compiler # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. # This bug is HP SR number 8606223364. { $as_echo "$as_me:${as_lineno-$LINENO}: checking size of int64_t" >&5 $as_echo_n "checking size of int64_t... " >&6; } if ${ac_cv_sizeof_int64_t+:} false; then : $as_echo_n "(cached) " >&6 else if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (int64_t))" "ac_cv_sizeof_int64_t" "$ac_includes_default"; then : else if test "$ac_cv_type_int64_t" = yes; then { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error 77 "cannot compute sizeof (int64_t) See \`config.log' for more details" "$LINENO" 5; } else ac_cv_sizeof_int64_t=0 fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_int64_t" >&5 $as_echo "$ac_cv_sizeof_int64_t" >&6; } cat >>confdefs.h <<_ACEOF #define SIZEOF_INT64_T $ac_cv_sizeof_int64_t _ACEOF # The cast to long int works around a bug in the HP C Compiler # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. # This bug is HP SR number 8606223364. { $as_echo "$as_me:${as_lineno-$LINENO}: checking size of uint8_t" >&5 $as_echo_n "checking size of uint8_t... " >&6; } if ${ac_cv_sizeof_uint8_t+:} false; then : $as_echo_n "(cached) " >&6 else if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (uint8_t))" "ac_cv_sizeof_uint8_t" "$ac_includes_default"; then : else if test "$ac_cv_type_uint8_t" = yes; then { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error 77 "cannot compute sizeof (uint8_t) See \`config.log' for more details" "$LINENO" 5; } else ac_cv_sizeof_uint8_t=0 fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_uint8_t" >&5 $as_echo "$ac_cv_sizeof_uint8_t" >&6; } cat >>confdefs.h <<_ACEOF #define SIZEOF_UINT8_T $ac_cv_sizeof_uint8_t _ACEOF # The cast to long int works around a bug in the HP C Compiler # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. # This bug is HP SR number 8606223364. { $as_echo "$as_me:${as_lineno-$LINENO}: checking size of uint16_t" >&5 $as_echo_n "checking size of uint16_t... " >&6; } if ${ac_cv_sizeof_uint16_t+:} false; then : $as_echo_n "(cached) " >&6 else if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (uint16_t))" "ac_cv_sizeof_uint16_t" "$ac_includes_default"; then : else if test "$ac_cv_type_uint16_t" = yes; then { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error 77 "cannot compute sizeof (uint16_t) See \`config.log' for more details" "$LINENO" 5; } else ac_cv_sizeof_uint16_t=0 fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_uint16_t" >&5 $as_echo "$ac_cv_sizeof_uint16_t" >&6; } cat >>confdefs.h <<_ACEOF #define SIZEOF_UINT16_T $ac_cv_sizeof_uint16_t _ACEOF # The cast to long int works around a bug in the HP C Compiler # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. # This bug is HP SR number 8606223364. { $as_echo "$as_me:${as_lineno-$LINENO}: checking size of uint32_t" >&5 $as_echo_n "checking size of uint32_t... 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" >&6; } if ${ac_cv_sizeof_int+:} false; then : $as_echo_n "(cached) " >&6 else if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (int))" "ac_cv_sizeof_int" "$ac_includes_default"; then : else if test "$ac_cv_type_int" = yes; then { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error 77 "cannot compute sizeof (int) See \`config.log' for more details" "$LINENO" 5; } else ac_cv_sizeof_int=0 fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_int" >&5 $as_echo "$ac_cv_sizeof_int" >&6; } cat >>confdefs.h <<_ACEOF #define SIZEOF_INT $ac_cv_sizeof_int _ACEOF # The cast to long int works around a bug in the HP C Compiler # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. # This bug is HP SR number 8606223364. { $as_echo "$as_me:${as_lineno-$LINENO}: checking size of long" >&5 $as_echo_n "checking size of long... " >&6; } if ${ac_cv_sizeof_long+:} false; then : $as_echo_n "(cached) " >&6 else if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long))" "ac_cv_sizeof_long" "$ac_includes_default"; then : else if test "$ac_cv_type_long" = yes; then { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error 77 "cannot compute sizeof (long) See \`config.log' for more details" "$LINENO" 5; } else ac_cv_sizeof_long=0 fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long" >&5 $as_echo "$ac_cv_sizeof_long" >&6; } cat >>confdefs.h <<_ACEOF #define SIZEOF_LONG $ac_cv_sizeof_long _ACEOF # The cast to long int works around a bug in the HP C Compiler # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. # This bug is HP SR number 8606223364. { $as_echo "$as_me:${as_lineno-$LINENO}: checking size of long long" >&5 $as_echo_n "checking size of long long... " >&6; } if ${ac_cv_sizeof_long_long+:} false; then : $as_echo_n "(cached) " >&6 else if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long long))" "ac_cv_sizeof_long_long" "$ac_includes_default"; then : else if test "$ac_cv_type_long_long" = yes; then { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error 77 "cannot compute sizeof (long long) See \`config.log' for more details" "$LINENO" 5; } else ac_cv_sizeof_long_long=0 fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long_long" >&5 $as_echo "$ac_cv_sizeof_long_long" >&6; } cat >>confdefs.h <<_ACEOF #define SIZEOF_LONG_LONG $ac_cv_sizeof_long_long _ACEOF # The cast to long int works around a bug in the HP C Compiler # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. # This bug is HP SR number 8606223364. { $as_echo "$as_me:${as_lineno-$LINENO}: checking size of __int64" >&5 $as_echo_n "checking size of __int64... " >&6; } if ${ac_cv_sizeof___int64+:} false; then : $as_echo_n "(cached) " >&6 else if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (__int64))" "ac_cv_sizeof___int64" "$ac_includes_default"; then : else if test "$ac_cv_type___int64" = yes; then { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error 77 "cannot compute sizeof (__int64) See \`config.log' for more details" "$LINENO" 5; } else ac_cv_sizeof___int64=0 fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof___int64" >&5 $as_echo "$ac_cv_sizeof___int64" >&6; } cat >>confdefs.h <<_ACEOF #define SIZEOF___INT64 $ac_cv_sizeof___int64 _ACEOF # The cast to long int works around a bug in the HP C Compiler # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. # This bug is HP SR number 8606223364. { $as_echo "$as_me:${as_lineno-$LINENO}: checking size of void *" >&5 $as_echo_n "checking size of void *... " >&6; } if ${ac_cv_sizeof_void_p+:} false; then : $as_echo_n "(cached) " >&6 else if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (void *))" "ac_cv_sizeof_void_p" "$ac_includes_default"; then : else if test "$ac_cv_type_void_p" = yes; then { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error 77 "cannot compute sizeof (void *) See \`config.log' for more details" "$LINENO" 5; } else ac_cv_sizeof_void_p=0 fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_void_p" >&5 $as_echo "$ac_cv_sizeof_void_p" >&6; } cat >>confdefs.h <<_ACEOF #define SIZEOF_VOID_P $ac_cv_sizeof_void_p _ACEOF # The cast to long int works around a bug in the HP C Compiler # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. # This bug is HP SR number 8606223364. { $as_echo "$as_me:${as_lineno-$LINENO}: checking size of time_t" >&5 $as_echo_n "checking size of time_t... " >&6; } if ${ac_cv_sizeof_time_t+:} false; then : $as_echo_n "(cached) " >&6 else if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (time_t))" "ac_cv_sizeof_time_t" "$ac_includes_default"; then : else if test "$ac_cv_type_time_t" = yes; then { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error 77 "cannot compute sizeof (time_t) See \`config.log' for more details" "$LINENO" 5; } else ac_cv_sizeof_time_t=0 fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_time_t" >&5 $as_echo "$ac_cv_sizeof_time_t" >&6; } cat >>confdefs.h <<_ACEOF #define SIZEOF_TIME_T $ac_cv_sizeof_time_t _ACEOF # The cast to long int works around a bug in the HP C Compiler # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. # This bug is HP SR number 8606223364. { $as_echo "$as_me:${as_lineno-$LINENO}: checking size of size_t" >&5 $as_echo_n "checking size of size_t... " >&6; } if ${ac_cv_sizeof_size_t+:} false; then : $as_echo_n "(cached) " >&6 else if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (size_t))" "ac_cv_sizeof_size_t" "$ac_includes_default"; then : else if test "$ac_cv_type_size_t" = yes; then { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error 77 "cannot compute sizeof (size_t) See \`config.log' for more details" "$LINENO" 5; } else ac_cv_sizeof_size_t=0 fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_size_t" >&5 $as_echo "$ac_cv_sizeof_size_t" >&6; } cat >>confdefs.h <<_ACEOF #define SIZEOF_SIZE_T $ac_cv_sizeof_size_t _ACEOF # The cast to long int works around a bug in the HP C Compiler # version HP92453-01 B.11.11.23709.GP, which incorrectly rejects # declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'. # This bug is HP SR number 8606223364. { $as_echo "$as_me:${as_lineno-$LINENO}: checking size of pid_t" >&5 $as_echo_n "checking size of pid_t... " >&6; } if ${ac_cv_sizeof_pid_t+:} false; then : $as_echo_n "(cached) " >&6 else if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (pid_t))" "ac_cv_sizeof_pid_t" "$ac_includes_default"; then : else if test "$ac_cv_type_pid_t" = yes; then { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;} as_fn_error 77 "cannot compute sizeof (pid_t) See \`config.log' for more details" "$LINENO" 5; } else ac_cv_sizeof_pid_t=0 fi fi fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_pid_t" >&5 $as_echo "$ac_cv_sizeof_pid_t" >&6; } cat >>confdefs.h <<_ACEOF #define SIZEOF_PID_T $ac_cv_sizeof_pid_t _ACEOF ac_fn_c_check_type "$LINENO" "uint" "ac_cv_type_uint" "$ac_includes_default" if test "x$ac_cv_type_uint" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_UINT 1 _ACEOF fi ac_fn_c_check_type "$LINENO" "u_char" "ac_cv_type_u_char" "$ac_includes_default" if test "x$ac_cv_type_u_char" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_U_CHAR 1 _ACEOF fi ac_fn_c_check_type "$LINENO" "ssize_t" "ac_cv_type_ssize_t" "$ac_includes_default" if test "x$ac_cv_type_ssize_t" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_SSIZE_T 1 _ACEOF fi for ac_header in ucontext.h do : ac_fn_c_check_header_mongrel "$LINENO" "ucontext.h" "ac_cv_header_ucontext_h" "$ac_includes_default" if test "x$ac_cv_header_ucontext_h" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_UCONTEXT_H 1 _ACEOF fi done # Redhat 7 has , but it barfs if we #include it directly # (this was fixed in later redhats). works fine, so use that. if grep "Red Hat Linux release 7" /etc/redhat-release >/dev/null 2>&1; then $as_echo "#define HAVE_SYS_UCONTEXT_H 0" >>confdefs.h ac_cv_header_sys_ucontext_h=no else for ac_header in sys/ucontext.h do : ac_fn_c_check_header_mongrel "$LINENO" "sys/ucontext.h" "ac_cv_header_sys_ucontext_h" "$ac_includes_default" if test "x$ac_cv_header_sys_ucontext_h" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_SYS_UCONTEXT_H 1 _ACEOF fi done # ucontext on OS X 10.6 (at least) fi for ac_header in cygwin/signal.h do : ac_fn_c_check_header_mongrel "$LINENO" "cygwin/signal.h" "ac_cv_header_cygwin_signal_h" "$ac_includes_default" if test "x$ac_cv_header_cygwin_signal_h" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_CYGWIN_SIGNAL_H 1 _ACEOF fi done # ucontext on cywgin { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to access the program counter from a struct ucontext" >&5 $as_echo_n "checking how to access the program counter from a struct ucontext... " >&6; } pc_fields=" uc_mcontext.gregs[REG_PC]" # Solaris x86 (32 + 64 bit) pc_fields="$pc_fields uc_mcontext.gregs[REG_EIP]" # Linux (i386) pc_fields="$pc_fields uc_mcontext.gregs[REG_RIP]" # Linux (x86_64) pc_fields="$pc_fields uc_mcontext.sc_ip" # Linux (ia64) pc_fields="$pc_fields uc_mcontext.uc_regs->gregs[PT_NIP]" # Linux (ppc) pc_fields="$pc_fields uc_mcontext.gregs[R15]" # Linux (arm old [untested]) pc_fields="$pc_fields uc_mcontext.arm_pc" # Linux (arm arch 5) pc_fields="$pc_fields uc_mcontext.gp_regs[PT_NIP]" # Suse SLES 11 (ppc64) pc_fields="$pc_fields uc_mcontext.mc_eip" # FreeBSD (i386) pc_fields="$pc_fields uc_mcontext.mc_rip" # FreeBSD (x86_64 [untested]) pc_fields="$pc_fields uc_mcontext.__gregs[_REG_EIP]" # NetBSD (i386) pc_fields="$pc_fields uc_mcontext.__gregs[_REG_RIP]" # NetBSD (x86_64) pc_fields="$pc_fields uc_mcontext->ss.eip" # OS X (i386, <=10.4) pc_fields="$pc_fields uc_mcontext->__ss.__eip" # OS X (i386, >=10.5) pc_fields="$pc_fields uc_mcontext->ss.rip" # OS X (x86_64) pc_fields="$pc_fields uc_mcontext->__ss.__rip" # OS X (>=10.5 [untested]) pc_fields="$pc_fields uc_mcontext->ss.srr0" # OS X (ppc, ppc64 [untested]) pc_fields="$pc_fields uc_mcontext->__ss.__srr0" # OS X (>=10.5 [untested]) pc_field_found=false for pc_field in $pc_fields; do if ! $pc_field_found; then # Prefer sys/ucontext.h to ucontext.h, for OS X's sake. if test "x$ac_cv_header_cygwin_signal_h" = xyes; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include int main () { ucontext_t u; return u.$pc_field == 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : cat >>confdefs.h <<_ACEOF #define PC_FROM_UCONTEXT $pc_field _ACEOF { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pc_field" >&5 $as_echo "$pc_field" >&6; } pc_field_found=true fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext elif test "x$ac_cv_header_sys_ucontext_h" = xyes; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include int main () { ucontext_t u; return u.$pc_field == 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : cat >>confdefs.h <<_ACEOF #define PC_FROM_UCONTEXT $pc_field _ACEOF { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pc_field" >&5 $as_echo "$pc_field" >&6; } pc_field_found=true fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext elif test "x$ac_cv_header_ucontext_h" = xyes; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include int main () { ucontext_t u; return u.$pc_field == 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : cat >>confdefs.h <<_ACEOF #define PC_FROM_UCONTEXT $pc_field _ACEOF { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pc_field" >&5 $as_echo "$pc_field" >&6; } pc_field_found=true fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext else # hope some standard header gives it to us cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ucontext_t u; return u.$pc_field == 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : cat >>confdefs.h <<_ACEOF #define PC_FROM_UCONTEXT $pc_field _ACEOF { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pc_field" >&5 $as_echo "$pc_field" >&6; } pc_field_found=true fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi fi done if ! $pc_field_found; then pc_fields=" sc_eip" # OpenBSD (i386) pc_fields="$pc_fields sc_rip" # OpenBSD (x86_64) for pc_field in $pc_fields; do if ! $pc_field_found; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include int main () { ucontext_t u; return u.$pc_field == 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : cat >>confdefs.h <<_ACEOF #define PC_FROM_UCONTEXT $pc_field _ACEOF { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pc_field" >&5 $as_echo "$pc_field" >&6; } pc_field_found=true fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi done fi if ! $pc_field_found; then : fi ac_fn_c_check_type "$LINENO" "struct in6_addr" "ac_cv_type_struct_in6_addr" "#ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_NETINET_IN6_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef _WIN32 #define _WIN32_WINNT 0x0501 #define WIN32_LEAN_AND_MEAN #include #include #endif " if test "x$ac_cv_type_struct_in6_addr" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_STRUCT_IN6_ADDR 1 _ACEOF fi ac_fn_c_check_type "$LINENO" "struct sockaddr_in6" "ac_cv_type_struct_sockaddr_in6" "#ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_NETINET_IN6_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef _WIN32 #define _WIN32_WINNT 0x0501 #define WIN32_LEAN_AND_MEAN #include #include #endif " if test "x$ac_cv_type_struct_sockaddr_in6" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_STRUCT_SOCKADDR_IN6 1 _ACEOF fi ac_fn_c_check_type "$LINENO" "sa_family_t" "ac_cv_type_sa_family_t" "#ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_NETINET_IN6_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef _WIN32 #define _WIN32_WINNT 0x0501 #define WIN32_LEAN_AND_MEAN #include #include #endif " if test "x$ac_cv_type_sa_family_t" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_SA_FAMILY_T 1 _ACEOF fi ac_fn_c_check_member "$LINENO" "struct in6_addr" "s6_addr32" "ac_cv_member_struct_in6_addr_s6_addr32" "#ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_NETINET_IN6_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef _WIN32 #define _WIN32_WINNT 0x0501 #define WIN32_LEAN_AND_MEAN #include #include #endif " if test "x$ac_cv_member_struct_in6_addr_s6_addr32" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_STRUCT_IN6_ADDR_S6_ADDR32 1 _ACEOF fi ac_fn_c_check_member "$LINENO" "struct in6_addr" "s6_addr16" "ac_cv_member_struct_in6_addr_s6_addr16" "#ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_NETINET_IN6_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef _WIN32 #define _WIN32_WINNT 0x0501 #define WIN32_LEAN_AND_MEAN #include #include #endif " if test "x$ac_cv_member_struct_in6_addr_s6_addr16" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_STRUCT_IN6_ADDR_S6_ADDR16 1 _ACEOF fi ac_fn_c_check_member "$LINENO" "struct sockaddr_in" "sin_len" "ac_cv_member_struct_sockaddr_in_sin_len" "#ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_NETINET_IN6_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef _WIN32 #define _WIN32_WINNT 0x0501 #define WIN32_LEAN_AND_MEAN #include #include #endif " if test "x$ac_cv_member_struct_sockaddr_in_sin_len" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_STRUCT_SOCKADDR_IN_SIN_LEN 1 _ACEOF fi ac_fn_c_check_member "$LINENO" "struct sockaddr_in6" "sin6_len" "ac_cv_member_struct_sockaddr_in6_sin6_len" "#ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_NETINET_IN6_H #include #endif #ifdef HAVE_SYS_SOCKET_H #include #endif #ifdef _WIN32 #define _WIN32_WINNT 0x0501 #define WIN32_LEAN_AND_MEAN #include #include #endif " if test "x$ac_cv_member_struct_sockaddr_in6_sin6_len" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_STRUCT_SOCKADDR_IN6_SIN6_LEN 1 _ACEOF fi ac_fn_c_check_type "$LINENO" "rlim_t" "ac_cv_type_rlim_t" "#ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_SYS_TIME_H #include #endif #ifdef HAVE_SYS_RESOURCE_H #include #endif " if test "x$ac_cv_type_rlim_t" = xyes; then : cat >>confdefs.h <<_ACEOF #define HAVE_RLIM_T 1 _ACEOF fi typename=`echo time_t | sed "s/[^a-zA-Z0-9_]/_/g"` { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether time_t is signed" >&5 $as_echo_n "checking whether time_t is signed... " >&6; } if eval \${ax_cv_decl_${typename}_signed+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #ifdef HAVE_SYS_TYPES_H #include #endif #ifdef HAVE_SYS_TIME_H #include #endif #ifdef HAVE_TIME_H #include #endif int main () { int foo [ 1 - 2 * !(((time_t) -1) < 0) ] ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : eval "ax_cv_decl_${typename}_signed=\"yes\"" else eval "ax_cv_decl_${typename}_signed=\"no\"" fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi eval ac_res=\$ax_cv_decl_${typename}_signed { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 $as_echo "$ac_res" >&6; } symbolname=`echo time_t | sed "s/[^a-zA-Z0-9_]/_/g" | tr "a-z" "A-Z"` if eval "test \"\${ax_cv_decl_${typename}_signed}\" = \"yes\""; then : elif eval "test \"\${ax_cv_decl_${typename}_signed}\" = \"no\""; then : fi if test "$ax_cv_decl_time_t_signed" = "no"; then as_fn_error $? "You have an unsigned time_t; Tor does not support that. Please tell the Tor developers about your interesting platform." "$LINENO" 5 fi typename=`echo size_t | sed "s/[^a-zA-Z0-9_]/_/g"` { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether size_t is signed" >&5 $as_echo_n "checking whether size_t is signed... " >&6; } if eval \${ax_cv_decl_${typename}_signed+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #ifdef HAVE_SYS_TYPES_H #include #endif int main () { int foo [ 1 - 2 * !(((size_t) -1) < 0) ] ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : eval "ax_cv_decl_${typename}_signed=\"yes\"" else eval "ax_cv_decl_${typename}_signed=\"no\"" fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi eval ac_res=\$ax_cv_decl_${typename}_signed { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 $as_echo "$ac_res" >&6; } symbolname=`echo size_t | sed "s/[^a-zA-Z0-9_]/_/g" | tr "a-z" "A-Z"` if eval "test \"\${ax_cv_decl_${typename}_signed}\" = \"yes\""; then tor_cv_size_t_signed=yes elif eval "test \"\${ax_cv_decl_${typename}_signed}\" = \"no\""; then tor_cv_size_t_signed=no fi if test "$ax_cv_decl_size_t_signed" = "yes"; then as_fn_error $? "You have a signed size_t; that's grossly nonconformant." "$LINENO" 5 fi typename=`echo enum always | sed "s/[^a-zA-Z0-9_]/_/g"` { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether enum always is signed" >&5 $as_echo_n "checking whether enum always is signed... 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" >&6; } if ${tor_cv_have_FUNC_macro+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #include int main(int c, char **v) { puts(__FUNC__); } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_have_FUNC_macro=yes else tor_cv_have_FUNC_macro=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_have_FUNC_macro" >&5 $as_echo "$tor_cv_have_FUNC_macro" >&6; } { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler supports __FUNCTION__" >&5 $as_echo_n "checking whether the C compiler supports __FUNCTION__... 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" >&6; } if ${tor_cv_have_environ_declared+:} false; then : $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ #ifdef HAVE_UNISTD_H #include #endif #include int main(int c, char **v) { char **t = environ; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_have_environ_declared=yes else tor_cv_have_environ_declared=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_have_environ_declared" >&5 $as_echo "$tor_cv_have_environ_declared" >&6; } if test "$tor_cv_have_func_macro" = "yes"; then $as_echo "#define HAVE_MACRO__func__ 1" >>confdefs.h fi if test "$tor_cv_have_FUNC_macro" = "yes"; then $as_echo "#define HAVE_MACRO__FUNC__ 1" >>confdefs.h fi if test "$tor_cv_have_FUNCTION_macro" = "yes"; then $as_echo "#define HAVE_MACRO__FUNCTION__ 1" >>confdefs.h fi if test "$tor_cv_have_environ_declared" = "yes"; then $as_echo "#define HAVE_EXTERN_ENVIRON_DECLARED 1" >>confdefs.h fi # $prefix stores the value of the --prefix command line option, or # NONE if the option wasn't set. In the case that it wasn't set, make # it be the default, so that we can use it to expand directories now. if test "x$prefix" = "xNONE"; then prefix=$ac_default_prefix fi # and similarly for $exec_prefix if test "x$exec_prefix" = "xNONE"; then exec_prefix=$prefix fi if test "x$BUILDDIR" = "x"; then BUILDDIR=`pwd` fi cat >>confdefs.h <<_ACEOF #define BUILDDIR "$BUILDDIR" _ACEOF if test "x$CONFDIR" = "x"; then CONFDIR=`eval echo $sysconfdir/tor` fi cat >>confdefs.h <<_ACEOF #define CONFDIR "$CONFDIR" _ACEOF BINDIR=`eval echo $bindir` LOCALSTATEDIR=`eval echo $localstatedir` if test "$bwin32" = "true"; then # Test if the linker supports the --nxcompat and --dynamicbase options # for Windows save_LDFLAGS="$LDFLAGS" LDFLAGS="-Wl,--nxcompat -Wl,--dynamicbase" { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the linker supports DllCharacteristics" >&5 $as_echo_n "checking whether the linker supports DllCharacteristics... " >&6; } cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 $as_echo "yes" >&6; } save_LDFLAGS="$save_LDFLAGS $LDFLAGS" else { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 $as_echo "no" >&6; } fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext LDFLAGS="$save_LDFLAGS" fi # Set CFLAGS _after_ all the above checks, since our warnings are stricter # than autoconf's macros like. if test "$GCC" = "yes"; then # Disable GCC's strict aliasing checks. They are an hours-to-debug # accident waiting to happen. CFLAGS="$CFLAGS -Wall -fno-strict-aliasing" else # Override optimization level for non-gcc compilers CFLAGS="$CFLAGS -O" enable_gcc_warnings=no enable_gcc_warnings_advisory=no fi # Warnings implies advisory-warnings and -Werror. if test "$enable_gcc_warnings" = "yes"; then enable_gcc_warnings_advisory=yes enable_fatal_warnings=yes fi # OS X Lion started deprecating the system openssl. Let's just disable # all deprecation warnings on OS X. Also, to potentially make the binary # a little smaller, let's enable dead_strip. case "$host_os" in darwin*) CFLAGS="$CFLAGS -Wno-deprecated-declarations" LDFLAGS="$LDFLAGS -dead_strip" ;; esac # Add some more warnings which we use in development but not in the # released versions. (Some relevant gcc versions can't handle these.) # # Note that we have to do this near the end of the autoconf process, or # else we may run into problems when these warnings hit on the testing C # programs that autoconf wants to build. if test "x$enable_gcc_warnings_advisory" != "xno"; then case "$host" in *-*-openbsd* | *-*-bitrig*) # Some OpenBSD versions (like 4.8) have -Wsystem-headers by default. # That's fine, except that the headers don't pass -Wredundant-decls. # Therefore, let's disable -Wsystem-headers when we're building # with maximal warnings on OpenBSD. CFLAGS="$CFLAGS -Wno-system-headers" ;; esac # GCC4.3 users once report trouble with -Wstrict-overflow=5. GCC5 users # have it work better. # CFLAGS="$CFLAGS -Wstrict-overflow=1" # This warning was added in gcc 4.3, but it appears to generate # spurious warnings in gcc 4.4. I don't know if it works in 4.5. #CFLAGS="$CFLAGS -Wlogical-op" { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Waddress" >&5 $as_echo_n "checking whether the compiler accepts -Waddress... " >&6; } if ${tor_cv_cflags__Waddress+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Waddress" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Waddress=yes else tor_cv_cflags__Waddress=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Waddress=yes else tor_can_link__Waddress=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Waddress" >&5 $as_echo "$tor_cv_cflags__Waddress" >&6; } if test x$tor_cv_cflags__Waddress = xyes; then CFLAGS="$CFLAGS -Waddress" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Waddress-of-array-temporary" >&5 $as_echo_n "checking whether the compiler accepts -Waddress-of-array-temporary... " >&6; } if ${tor_cv_cflags__Waddress_of_array_temporary+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Waddress-of-array-temporary" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Waddress_of_array_temporary=yes else tor_cv_cflags__Waddress_of_array_temporary=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Waddress_of_array_temporary=yes else tor_can_link__Waddress_of_array_temporary=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Waddress_of_array_temporary" >&5 $as_echo "$tor_cv_cflags__Waddress_of_array_temporary" >&6; } if test x$tor_cv_cflags__Waddress_of_array_temporary = xyes; then CFLAGS="$CFLAGS -Waddress-of-array-temporary" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Waddress-of-temporary" >&5 $as_echo_n "checking whether the compiler accepts -Waddress-of-temporary... " >&6; } if ${tor_cv_cflags__Waddress_of_temporary+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Waddress-of-temporary" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Waddress_of_temporary=yes else tor_cv_cflags__Waddress_of_temporary=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Waddress_of_temporary=yes else tor_can_link__Waddress_of_temporary=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Waddress_of_temporary" >&5 $as_echo "$tor_cv_cflags__Waddress_of_temporary" >&6; } if test x$tor_cv_cflags__Waddress_of_temporary = xyes; then CFLAGS="$CFLAGS -Waddress-of-temporary" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wambiguous-macro" >&5 $as_echo_n "checking whether the compiler accepts -Wambiguous-macro... " >&6; } if ${tor_cv_cflags__Wambiguous_macro+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wambiguous-macro" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wambiguous_macro=yes else tor_cv_cflags__Wambiguous_macro=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wambiguous_macro=yes else tor_can_link__Wambiguous_macro=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wambiguous_macro" >&5 $as_echo "$tor_cv_cflags__Wambiguous_macro" >&6; } if test x$tor_cv_cflags__Wambiguous_macro = xyes; then CFLAGS="$CFLAGS -Wambiguous-macro" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wanonymous-pack-parens" >&5 $as_echo_n "checking whether the compiler accepts -Wanonymous-pack-parens... " >&6; } if ${tor_cv_cflags__Wanonymous_pack_parens+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wanonymous-pack-parens" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wanonymous_pack_parens=yes else tor_cv_cflags__Wanonymous_pack_parens=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wanonymous_pack_parens=yes else tor_can_link__Wanonymous_pack_parens=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wanonymous_pack_parens" >&5 $as_echo "$tor_cv_cflags__Wanonymous_pack_parens" >&6; } if test x$tor_cv_cflags__Wanonymous_pack_parens = xyes; then CFLAGS="$CFLAGS -Wanonymous-pack-parens" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Warc" >&5 $as_echo_n "checking whether the compiler accepts -Warc... " >&6; } if ${tor_cv_cflags__Warc+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Warc" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Warc=yes else tor_cv_cflags__Warc=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Warc=yes else tor_can_link__Warc=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Warc" >&5 $as_echo "$tor_cv_cflags__Warc" >&6; } if test x$tor_cv_cflags__Warc = xyes; then CFLAGS="$CFLAGS -Warc" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Warc-abi" >&5 $as_echo_n "checking whether the compiler accepts -Warc-abi... " >&6; } if ${tor_cv_cflags__Warc_abi+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Warc-abi" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Warc_abi=yes else tor_cv_cflags__Warc_abi=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Warc_abi=yes else tor_can_link__Warc_abi=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Warc_abi" >&5 $as_echo "$tor_cv_cflags__Warc_abi" >&6; } if test x$tor_cv_cflags__Warc_abi = xyes; then CFLAGS="$CFLAGS -Warc-abi" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Warc-bridge-casts-disallowed-in-nonarc" >&5 $as_echo_n "checking whether the compiler accepts -Warc-bridge-casts-disallowed-in-nonarc... " >&6; } if ${tor_cv_cflags__Warc_bridge_casts_disallowed_in_nonarc+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Warc-bridge-casts-disallowed-in-nonarc" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Warc_bridge_casts_disallowed_in_nonarc=yes else tor_cv_cflags__Warc_bridge_casts_disallowed_in_nonarc=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Warc_bridge_casts_disallowed_in_nonarc=yes else tor_can_link__Warc_bridge_casts_disallowed_in_nonarc=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Warc_bridge_casts_disallowed_in_nonarc" >&5 $as_echo "$tor_cv_cflags__Warc_bridge_casts_disallowed_in_nonarc" >&6; } if test x$tor_cv_cflags__Warc_bridge_casts_disallowed_in_nonarc = xyes; then CFLAGS="$CFLAGS -Warc-bridge-casts-disallowed-in-nonarc" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Warc-maybe-repeated-use-of-weak" >&5 $as_echo_n "checking whether the compiler accepts -Warc-maybe-repeated-use-of-weak... " >&6; } if ${tor_cv_cflags__Warc_maybe_repeated_use_of_weak+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Warc-maybe-repeated-use-of-weak" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Warc_maybe_repeated_use_of_weak=yes else tor_cv_cflags__Warc_maybe_repeated_use_of_weak=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Warc_maybe_repeated_use_of_weak=yes else tor_can_link__Warc_maybe_repeated_use_of_weak=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Warc_maybe_repeated_use_of_weak" >&5 $as_echo "$tor_cv_cflags__Warc_maybe_repeated_use_of_weak" >&6; } if test x$tor_cv_cflags__Warc_maybe_repeated_use_of_weak = xyes; then CFLAGS="$CFLAGS -Warc-maybe-repeated-use-of-weak" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Warc-performSelector-leaks" >&5 $as_echo_n "checking whether the compiler accepts -Warc-performSelector-leaks... " >&6; } if ${tor_cv_cflags__Warc_performSelector_leaks+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Warc-performSelector-leaks" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Warc_performSelector_leaks=yes else tor_cv_cflags__Warc_performSelector_leaks=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Warc_performSelector_leaks=yes else tor_can_link__Warc_performSelector_leaks=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Warc_performSelector_leaks" >&5 $as_echo "$tor_cv_cflags__Warc_performSelector_leaks" >&6; } if test x$tor_cv_cflags__Warc_performSelector_leaks = xyes; then CFLAGS="$CFLAGS -Warc-performSelector-leaks" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Warc-repeated-use-of-weak" >&5 $as_echo_n "checking whether the compiler accepts -Warc-repeated-use-of-weak... " >&6; } if ${tor_cv_cflags__Warc_repeated_use_of_weak+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Warc-repeated-use-of-weak" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Warc_repeated_use_of_weak=yes else tor_cv_cflags__Warc_repeated_use_of_weak=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Warc_repeated_use_of_weak=yes else tor_can_link__Warc_repeated_use_of_weak=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Warc_repeated_use_of_weak" >&5 $as_echo "$tor_cv_cflags__Warc_repeated_use_of_weak" >&6; } if test x$tor_cv_cflags__Warc_repeated_use_of_weak = xyes; then CFLAGS="$CFLAGS -Warc-repeated-use-of-weak" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Warray-bounds" >&5 $as_echo_n "checking whether the compiler accepts -Warray-bounds... " >&6; } if ${tor_cv_cflags__Warray_bounds+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Warray-bounds" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Warray_bounds=yes else tor_cv_cflags__Warray_bounds=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Warray_bounds=yes else tor_can_link__Warray_bounds=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Warray_bounds" >&5 $as_echo "$tor_cv_cflags__Warray_bounds" >&6; } if test x$tor_cv_cflags__Warray_bounds = xyes; then CFLAGS="$CFLAGS -Warray-bounds" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Warray-bounds-pointer-arithmetic" >&5 $as_echo_n "checking whether the compiler accepts -Warray-bounds-pointer-arithmetic... " >&6; } if ${tor_cv_cflags__Warray_bounds_pointer_arithmetic+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Warray-bounds-pointer-arithmetic" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Warray_bounds_pointer_arithmetic=yes else tor_cv_cflags__Warray_bounds_pointer_arithmetic=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Warray_bounds_pointer_arithmetic=yes else tor_can_link__Warray_bounds_pointer_arithmetic=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Warray_bounds_pointer_arithmetic" >&5 $as_echo "$tor_cv_cflags__Warray_bounds_pointer_arithmetic" >&6; } if test x$tor_cv_cflags__Warray_bounds_pointer_arithmetic = xyes; then CFLAGS="$CFLAGS -Warray-bounds-pointer-arithmetic" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wasm" >&5 $as_echo_n "checking whether the compiler accepts -Wasm... " >&6; } if ${tor_cv_cflags__Wasm+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wasm" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wasm=yes else tor_cv_cflags__Wasm=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wasm=yes else tor_can_link__Wasm=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wasm" >&5 $as_echo "$tor_cv_cflags__Wasm" >&6; } if test x$tor_cv_cflags__Wasm = xyes; then CFLAGS="$CFLAGS -Wasm" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wasm-operand-widths" >&5 $as_echo_n "checking whether the compiler accepts -Wasm-operand-widths... " >&6; } if ${tor_cv_cflags__Wasm_operand_widths+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wasm-operand-widths" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wasm_operand_widths=yes else tor_cv_cflags__Wasm_operand_widths=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wasm_operand_widths=yes else tor_can_link__Wasm_operand_widths=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wasm_operand_widths" >&5 $as_echo "$tor_cv_cflags__Wasm_operand_widths" >&6; } if test x$tor_cv_cflags__Wasm_operand_widths = xyes; then CFLAGS="$CFLAGS -Wasm-operand-widths" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Watomic-properties" >&5 $as_echo_n "checking whether the compiler accepts -Watomic-properties... " >&6; } if ${tor_cv_cflags__Watomic_properties+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Watomic-properties" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Watomic_properties=yes else tor_cv_cflags__Watomic_properties=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Watomic_properties=yes else tor_can_link__Watomic_properties=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Watomic_properties" >&5 $as_echo "$tor_cv_cflags__Watomic_properties" >&6; } if test x$tor_cv_cflags__Watomic_properties = xyes; then CFLAGS="$CFLAGS -Watomic-properties" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Watomic-property-with-user-defined-accessor" >&5 $as_echo_n "checking whether the compiler accepts -Watomic-property-with-user-defined-accessor... " >&6; } if ${tor_cv_cflags__Watomic_property_with_user_defined_accessor+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Watomic-property-with-user-defined-accessor" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Watomic_property_with_user_defined_accessor=yes else tor_cv_cflags__Watomic_property_with_user_defined_accessor=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Watomic_property_with_user_defined_accessor=yes else tor_can_link__Watomic_property_with_user_defined_accessor=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Watomic_property_with_user_defined_accessor" >&5 $as_echo "$tor_cv_cflags__Watomic_property_with_user_defined_accessor" >&6; } if test x$tor_cv_cflags__Watomic_property_with_user_defined_accessor = xyes; then CFLAGS="$CFLAGS -Watomic-property-with-user-defined-accessor" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wauto-import" >&5 $as_echo_n "checking whether the compiler accepts -Wauto-import... " >&6; } if ${tor_cv_cflags__Wauto_import+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wauto-import" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wauto_import=yes else tor_cv_cflags__Wauto_import=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wauto_import=yes else tor_can_link__Wauto_import=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wauto_import" >&5 $as_echo "$tor_cv_cflags__Wauto_import" >&6; } if test x$tor_cv_cflags__Wauto_import = xyes; then CFLAGS="$CFLAGS -Wauto-import" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wauto-storage-class" >&5 $as_echo_n "checking whether the compiler accepts -Wauto-storage-class... " >&6; } if ${tor_cv_cflags__Wauto_storage_class+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wauto-storage-class" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wauto_storage_class=yes else tor_cv_cflags__Wauto_storage_class=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wauto_storage_class=yes else tor_can_link__Wauto_storage_class=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wauto_storage_class" >&5 $as_echo "$tor_cv_cflags__Wauto_storage_class" >&6; } if test x$tor_cv_cflags__Wauto_storage_class = xyes; then CFLAGS="$CFLAGS -Wauto-storage-class" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wauto-var-id" >&5 $as_echo_n "checking whether the compiler accepts -Wauto-var-id... " >&6; } if ${tor_cv_cflags__Wauto_var_id+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wauto-var-id" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wauto_var_id=yes else tor_cv_cflags__Wauto_var_id=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wauto_var_id=yes else tor_can_link__Wauto_var_id=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wauto_var_id" >&5 $as_echo "$tor_cv_cflags__Wauto_var_id" >&6; } if test x$tor_cv_cflags__Wauto_var_id = xyes; then CFLAGS="$CFLAGS -Wauto-var-id" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wavailability" >&5 $as_echo_n "checking whether the compiler accepts -Wavailability... " >&6; } if ${tor_cv_cflags__Wavailability+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wavailability" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wavailability=yes else tor_cv_cflags__Wavailability=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wavailability=yes else tor_can_link__Wavailability=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wavailability" >&5 $as_echo "$tor_cv_cflags__Wavailability" >&6; } if test x$tor_cv_cflags__Wavailability = xyes; then CFLAGS="$CFLAGS -Wavailability" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wbackslash-newline-escape" >&5 $as_echo_n "checking whether the compiler accepts -Wbackslash-newline-escape... " >&6; } if ${tor_cv_cflags__Wbackslash_newline_escape+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wbackslash-newline-escape" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wbackslash_newline_escape=yes else tor_cv_cflags__Wbackslash_newline_escape=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wbackslash_newline_escape=yes else tor_can_link__Wbackslash_newline_escape=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wbackslash_newline_escape" >&5 $as_echo "$tor_cv_cflags__Wbackslash_newline_escape" >&6; } if test x$tor_cv_cflags__Wbackslash_newline_escape = xyes; then CFLAGS="$CFLAGS -Wbackslash-newline-escape" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wbad-array-new-length" >&5 $as_echo_n "checking whether the compiler accepts -Wbad-array-new-length... " >&6; } if ${tor_cv_cflags__Wbad_array_new_length+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wbad-array-new-length" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wbad_array_new_length=yes else tor_cv_cflags__Wbad_array_new_length=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wbad_array_new_length=yes else tor_can_link__Wbad_array_new_length=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wbad_array_new_length" >&5 $as_echo "$tor_cv_cflags__Wbad_array_new_length" >&6; } if test x$tor_cv_cflags__Wbad_array_new_length = xyes; then CFLAGS="$CFLAGS -Wbad-array-new-length" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wbind-to-temporary-copy" >&5 $as_echo_n "checking whether the compiler accepts -Wbind-to-temporary-copy... " >&6; } if ${tor_cv_cflags__Wbind_to_temporary_copy+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wbind-to-temporary-copy" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wbind_to_temporary_copy=yes else tor_cv_cflags__Wbind_to_temporary_copy=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wbind_to_temporary_copy=yes else tor_can_link__Wbind_to_temporary_copy=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wbind_to_temporary_copy" >&5 $as_echo "$tor_cv_cflags__Wbind_to_temporary_copy" >&6; } if test x$tor_cv_cflags__Wbind_to_temporary_copy = xyes; then CFLAGS="$CFLAGS -Wbind-to-temporary-copy" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wbitfield-constant-conversion" >&5 $as_echo_n "checking whether the compiler accepts -Wbitfield-constant-conversion... " >&6; } if ${tor_cv_cflags__Wbitfield_constant_conversion+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wbitfield-constant-conversion" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wbitfield_constant_conversion=yes else tor_cv_cflags__Wbitfield_constant_conversion=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wbitfield_constant_conversion=yes else tor_can_link__Wbitfield_constant_conversion=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wbitfield_constant_conversion" >&5 $as_echo "$tor_cv_cflags__Wbitfield_constant_conversion" >&6; } if test x$tor_cv_cflags__Wbitfield_constant_conversion = xyes; then CFLAGS="$CFLAGS -Wbitfield-constant-conversion" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wbool-conversion" >&5 $as_echo_n "checking whether the compiler accepts -Wbool-conversion... " >&6; } if ${tor_cv_cflags__Wbool_conversion+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wbool-conversion" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wbool_conversion=yes else tor_cv_cflags__Wbool_conversion=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wbool_conversion=yes else tor_can_link__Wbool_conversion=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wbool_conversion" >&5 $as_echo "$tor_cv_cflags__Wbool_conversion" >&6; } if test x$tor_cv_cflags__Wbool_conversion = xyes; then CFLAGS="$CFLAGS -Wbool-conversion" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wbool-conversions" >&5 $as_echo_n "checking whether the compiler accepts -Wbool-conversions... " >&6; } if ${tor_cv_cflags__Wbool_conversions+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wbool-conversions" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wbool_conversions=yes else tor_cv_cflags__Wbool_conversions=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wbool_conversions=yes else tor_can_link__Wbool_conversions=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wbool_conversions" >&5 $as_echo "$tor_cv_cflags__Wbool_conversions" >&6; } if test x$tor_cv_cflags__Wbool_conversions = xyes; then CFLAGS="$CFLAGS -Wbool-conversions" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wbuiltin-requires-header" >&5 $as_echo_n "checking whether the compiler accepts -Wbuiltin-requires-header... " >&6; } if ${tor_cv_cflags__Wbuiltin_requires_header+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wbuiltin-requires-header" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wbuiltin_requires_header=yes else tor_cv_cflags__Wbuiltin_requires_header=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wbuiltin_requires_header=yes else tor_can_link__Wbuiltin_requires_header=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wbuiltin_requires_header" >&5 $as_echo "$tor_cv_cflags__Wbuiltin_requires_header" >&6; } if test x$tor_cv_cflags__Wbuiltin_requires_header = xyes; then CFLAGS="$CFLAGS -Wbuiltin-requires-header" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wchar-align" >&5 $as_echo_n "checking whether the compiler accepts -Wchar-align... " >&6; } if ${tor_cv_cflags__Wchar_align+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wchar-align" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wchar_align=yes else tor_cv_cflags__Wchar_align=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wchar_align=yes else tor_can_link__Wchar_align=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wchar_align" >&5 $as_echo "$tor_cv_cflags__Wchar_align" >&6; } if test x$tor_cv_cflags__Wchar_align = xyes; then CFLAGS="$CFLAGS -Wchar-align" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wcompare-distinct-pointer-types" >&5 $as_echo_n "checking whether the compiler accepts -Wcompare-distinct-pointer-types... " >&6; } if ${tor_cv_cflags__Wcompare_distinct_pointer_types+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wcompare-distinct-pointer-types" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wcompare_distinct_pointer_types=yes else tor_cv_cflags__Wcompare_distinct_pointer_types=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wcompare_distinct_pointer_types=yes else tor_can_link__Wcompare_distinct_pointer_types=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wcompare_distinct_pointer_types" >&5 $as_echo "$tor_cv_cflags__Wcompare_distinct_pointer_types" >&6; } if test x$tor_cv_cflags__Wcompare_distinct_pointer_types = xyes; then CFLAGS="$CFLAGS -Wcompare-distinct-pointer-types" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wcomplex-component-init" >&5 $as_echo_n "checking whether the compiler accepts -Wcomplex-component-init... " >&6; } if ${tor_cv_cflags__Wcomplex_component_init+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wcomplex-component-init" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wcomplex_component_init=yes else tor_cv_cflags__Wcomplex_component_init=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wcomplex_component_init=yes else tor_can_link__Wcomplex_component_init=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wcomplex_component_init" >&5 $as_echo "$tor_cv_cflags__Wcomplex_component_init" >&6; } if test x$tor_cv_cflags__Wcomplex_component_init = xyes; then CFLAGS="$CFLAGS -Wcomplex-component-init" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wconditional-type-mismatch" >&5 $as_echo_n "checking whether the compiler accepts -Wconditional-type-mismatch... " >&6; } if ${tor_cv_cflags__Wconditional_type_mismatch+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wconditional-type-mismatch" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wconditional_type_mismatch=yes else tor_cv_cflags__Wconditional_type_mismatch=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wconditional_type_mismatch=yes else tor_can_link__Wconditional_type_mismatch=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wconditional_type_mismatch" >&5 $as_echo "$tor_cv_cflags__Wconditional_type_mismatch" >&6; } if test x$tor_cv_cflags__Wconditional_type_mismatch = xyes; then CFLAGS="$CFLAGS -Wconditional-type-mismatch" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wconfig-macros" >&5 $as_echo_n "checking whether the compiler accepts -Wconfig-macros... " >&6; } if ${tor_cv_cflags__Wconfig_macros+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wconfig-macros" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wconfig_macros=yes else tor_cv_cflags__Wconfig_macros=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wconfig_macros=yes else tor_can_link__Wconfig_macros=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wconfig_macros" >&5 $as_echo "$tor_cv_cflags__Wconfig_macros" >&6; } if test x$tor_cv_cflags__Wconfig_macros = xyes; then CFLAGS="$CFLAGS -Wconfig-macros" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wconstant-conversion" >&5 $as_echo_n "checking whether the compiler accepts -Wconstant-conversion... " >&6; } if ${tor_cv_cflags__Wconstant_conversion+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wconstant-conversion" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wconstant_conversion=yes else tor_cv_cflags__Wconstant_conversion=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wconstant_conversion=yes else tor_can_link__Wconstant_conversion=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wconstant_conversion" >&5 $as_echo "$tor_cv_cflags__Wconstant_conversion" >&6; } if test x$tor_cv_cflags__Wconstant_conversion = xyes; then CFLAGS="$CFLAGS -Wconstant-conversion" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wconstant-logical-operand" >&5 $as_echo_n "checking whether the compiler accepts -Wconstant-logical-operand... " >&6; } if ${tor_cv_cflags__Wconstant_logical_operand+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wconstant-logical-operand" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wconstant_logical_operand=yes else tor_cv_cflags__Wconstant_logical_operand=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wconstant_logical_operand=yes else tor_can_link__Wconstant_logical_operand=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wconstant_logical_operand" >&5 $as_echo "$tor_cv_cflags__Wconstant_logical_operand" >&6; } if test x$tor_cv_cflags__Wconstant_logical_operand = xyes; then CFLAGS="$CFLAGS -Wconstant-logical-operand" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wconstexpr-not-const" >&5 $as_echo_n "checking whether the compiler accepts -Wconstexpr-not-const... " >&6; } if ${tor_cv_cflags__Wconstexpr_not_const+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wconstexpr-not-const" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wconstexpr_not_const=yes else tor_cv_cflags__Wconstexpr_not_const=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wconstexpr_not_const=yes else tor_can_link__Wconstexpr_not_const=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wconstexpr_not_const" >&5 $as_echo "$tor_cv_cflags__Wconstexpr_not_const" >&6; } if test x$tor_cv_cflags__Wconstexpr_not_const = xyes; then CFLAGS="$CFLAGS -Wconstexpr-not-const" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wcustom-atomic-properties" >&5 $as_echo_n "checking whether the compiler accepts -Wcustom-atomic-properties... " >&6; } if ${tor_cv_cflags__Wcustom_atomic_properties+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wcustom-atomic-properties" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wcustom_atomic_properties=yes else tor_cv_cflags__Wcustom_atomic_properties=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wcustom_atomic_properties=yes else tor_can_link__Wcustom_atomic_properties=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wcustom_atomic_properties" >&5 $as_echo "$tor_cv_cflags__Wcustom_atomic_properties" >&6; } if test x$tor_cv_cflags__Wcustom_atomic_properties = xyes; then CFLAGS="$CFLAGS -Wcustom-atomic-properties" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wdangling-field" >&5 $as_echo_n "checking whether the compiler accepts -Wdangling-field... " >&6; } if ${tor_cv_cflags__Wdangling_field+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wdangling-field" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wdangling_field=yes else tor_cv_cflags__Wdangling_field=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wdangling_field=yes else tor_can_link__Wdangling_field=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wdangling_field" >&5 $as_echo "$tor_cv_cflags__Wdangling_field" >&6; } if test x$tor_cv_cflags__Wdangling_field = xyes; then CFLAGS="$CFLAGS -Wdangling-field" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wdangling-initializer-list" >&5 $as_echo_n "checking whether the compiler accepts -Wdangling-initializer-list... " >&6; } if ${tor_cv_cflags__Wdangling_initializer_list+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wdangling-initializer-list" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wdangling_initializer_list=yes else tor_cv_cflags__Wdangling_initializer_list=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wdangling_initializer_list=yes else tor_can_link__Wdangling_initializer_list=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wdangling_initializer_list" >&5 $as_echo "$tor_cv_cflags__Wdangling_initializer_list" >&6; } if test x$tor_cv_cflags__Wdangling_initializer_list = xyes; then CFLAGS="$CFLAGS -Wdangling-initializer-list" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wdate-time" >&5 $as_echo_n "checking whether the compiler accepts -Wdate-time... " >&6; } if ${tor_cv_cflags__Wdate_time+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wdate-time" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wdate_time=yes else tor_cv_cflags__Wdate_time=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wdate_time=yes else tor_can_link__Wdate_time=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wdate_time" >&5 $as_echo "$tor_cv_cflags__Wdate_time" >&6; } if test x$tor_cv_cflags__Wdate_time = xyes; then CFLAGS="$CFLAGS -Wdate-time" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wdelegating-ctor-cycles" >&5 $as_echo_n "checking whether the compiler accepts -Wdelegating-ctor-cycles... " >&6; } if ${tor_cv_cflags__Wdelegating_ctor_cycles+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wdelegating-ctor-cycles" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wdelegating_ctor_cycles=yes else tor_cv_cflags__Wdelegating_ctor_cycles=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wdelegating_ctor_cycles=yes else tor_can_link__Wdelegating_ctor_cycles=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wdelegating_ctor_cycles" >&5 $as_echo "$tor_cv_cflags__Wdelegating_ctor_cycles" >&6; } if test x$tor_cv_cflags__Wdelegating_ctor_cycles = xyes; then CFLAGS="$CFLAGS -Wdelegating-ctor-cycles" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wdeprecated-implementations" >&5 $as_echo_n "checking whether the compiler accepts -Wdeprecated-implementations... " >&6; } if ${tor_cv_cflags__Wdeprecated_implementations+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wdeprecated-implementations" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wdeprecated_implementations=yes else tor_cv_cflags__Wdeprecated_implementations=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wdeprecated_implementations=yes else tor_can_link__Wdeprecated_implementations=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wdeprecated_implementations" >&5 $as_echo "$tor_cv_cflags__Wdeprecated_implementations" >&6; } if test x$tor_cv_cflags__Wdeprecated_implementations = xyes; then CFLAGS="$CFLAGS -Wdeprecated-implementations" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wdeprecated-register" >&5 $as_echo_n "checking whether the compiler accepts -Wdeprecated-register... " >&6; } if ${tor_cv_cflags__Wdeprecated_register+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wdeprecated-register" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wdeprecated_register=yes else tor_cv_cflags__Wdeprecated_register=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wdeprecated_register=yes else tor_can_link__Wdeprecated_register=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wdeprecated_register" >&5 $as_echo "$tor_cv_cflags__Wdeprecated_register" >&6; } if test x$tor_cv_cflags__Wdeprecated_register = xyes; then CFLAGS="$CFLAGS -Wdeprecated-register" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wdirect-ivar-access" >&5 $as_echo_n "checking whether the compiler accepts -Wdirect-ivar-access... " >&6; } if ${tor_cv_cflags__Wdirect_ivar_access+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wdirect-ivar-access" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wdirect_ivar_access=yes else tor_cv_cflags__Wdirect_ivar_access=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wdirect_ivar_access=yes else tor_can_link__Wdirect_ivar_access=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wdirect_ivar_access" >&5 $as_echo "$tor_cv_cflags__Wdirect_ivar_access" >&6; } if test x$tor_cv_cflags__Wdirect_ivar_access = xyes; then CFLAGS="$CFLAGS -Wdirect-ivar-access" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wdiscard-qual" >&5 $as_echo_n "checking whether the compiler accepts -Wdiscard-qual... " >&6; } if ${tor_cv_cflags__Wdiscard_qual+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wdiscard-qual" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wdiscard_qual=yes else tor_cv_cflags__Wdiscard_qual=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wdiscard_qual=yes else tor_can_link__Wdiscard_qual=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wdiscard_qual" >&5 $as_echo "$tor_cv_cflags__Wdiscard_qual" >&6; } if test x$tor_cv_cflags__Wdiscard_qual = xyes; then CFLAGS="$CFLAGS -Wdiscard-qual" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wdistributed-object-modifiers" >&5 $as_echo_n "checking whether the compiler accepts -Wdistributed-object-modifiers... " >&6; } if ${tor_cv_cflags__Wdistributed_object_modifiers+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wdistributed-object-modifiers" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wdistributed_object_modifiers=yes else tor_cv_cflags__Wdistributed_object_modifiers=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wdistributed_object_modifiers=yes else tor_can_link__Wdistributed_object_modifiers=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wdistributed_object_modifiers" >&5 $as_echo "$tor_cv_cflags__Wdistributed_object_modifiers" >&6; } if test x$tor_cv_cflags__Wdistributed_object_modifiers = xyes; then CFLAGS="$CFLAGS -Wdistributed-object-modifiers" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wdivision-by-zero" >&5 $as_echo_n "checking whether the compiler accepts -Wdivision-by-zero... " >&6; } if ${tor_cv_cflags__Wdivision_by_zero+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wdivision-by-zero" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wdivision_by_zero=yes else tor_cv_cflags__Wdivision_by_zero=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wdivision_by_zero=yes else tor_can_link__Wdivision_by_zero=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wdivision_by_zero" >&5 $as_echo "$tor_cv_cflags__Wdivision_by_zero" >&6; } if test x$tor_cv_cflags__Wdivision_by_zero = xyes; then CFLAGS="$CFLAGS -Wdivision-by-zero" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wdollar-in-identifier-extension" >&5 $as_echo_n "checking whether the compiler accepts -Wdollar-in-identifier-extension... " >&6; } if ${tor_cv_cflags__Wdollar_in_identifier_extension+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wdollar-in-identifier-extension" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wdollar_in_identifier_extension=yes else tor_cv_cflags__Wdollar_in_identifier_extension=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wdollar_in_identifier_extension=yes else tor_can_link__Wdollar_in_identifier_extension=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wdollar_in_identifier_extension" >&5 $as_echo "$tor_cv_cflags__Wdollar_in_identifier_extension" >&6; } if test x$tor_cv_cflags__Wdollar_in_identifier_extension = xyes; then CFLAGS="$CFLAGS -Wdollar-in-identifier-extension" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wdouble-promotion" >&5 $as_echo_n "checking whether the compiler accepts -Wdouble-promotion... " >&6; } if ${tor_cv_cflags__Wdouble_promotion+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wdouble-promotion" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wdouble_promotion=yes else tor_cv_cflags__Wdouble_promotion=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wdouble_promotion=yes else tor_can_link__Wdouble_promotion=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wdouble_promotion" >&5 $as_echo "$tor_cv_cflags__Wdouble_promotion" >&6; } if test x$tor_cv_cflags__Wdouble_promotion = xyes; then CFLAGS="$CFLAGS -Wdouble-promotion" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wduplicate-decl-specifier" >&5 $as_echo_n "checking whether the compiler accepts -Wduplicate-decl-specifier... " >&6; } if ${tor_cv_cflags__Wduplicate_decl_specifier+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wduplicate-decl-specifier" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wduplicate_decl_specifier=yes else tor_cv_cflags__Wduplicate_decl_specifier=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wduplicate_decl_specifier=yes else tor_can_link__Wduplicate_decl_specifier=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wduplicate_decl_specifier" >&5 $as_echo "$tor_cv_cflags__Wduplicate_decl_specifier" >&6; } if test x$tor_cv_cflags__Wduplicate_decl_specifier = xyes; then CFLAGS="$CFLAGS -Wduplicate-decl-specifier" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wduplicate-enum" >&5 $as_echo_n "checking whether the compiler accepts -Wduplicate-enum... " >&6; } if ${tor_cv_cflags__Wduplicate_enum+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wduplicate-enum" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wduplicate_enum=yes else tor_cv_cflags__Wduplicate_enum=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wduplicate_enum=yes else tor_can_link__Wduplicate_enum=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wduplicate_enum" >&5 $as_echo "$tor_cv_cflags__Wduplicate_enum" >&6; } if test x$tor_cv_cflags__Wduplicate_enum = xyes; then CFLAGS="$CFLAGS -Wduplicate-enum" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wduplicate-method-arg" >&5 $as_echo_n "checking whether the compiler accepts -Wduplicate-method-arg... " >&6; } if ${tor_cv_cflags__Wduplicate_method_arg+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wduplicate-method-arg" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wduplicate_method_arg=yes else tor_cv_cflags__Wduplicate_method_arg=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wduplicate_method_arg=yes else tor_can_link__Wduplicate_method_arg=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wduplicate_method_arg" >&5 $as_echo "$tor_cv_cflags__Wduplicate_method_arg" >&6; } if test x$tor_cv_cflags__Wduplicate_method_arg = xyes; then CFLAGS="$CFLAGS -Wduplicate-method-arg" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wduplicate-method-match" >&5 $as_echo_n "checking whether the compiler accepts -Wduplicate-method-match... " >&6; } if ${tor_cv_cflags__Wduplicate_method_match+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wduplicate-method-match" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wduplicate_method_match=yes else tor_cv_cflags__Wduplicate_method_match=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wduplicate_method_match=yes else tor_can_link__Wduplicate_method_match=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wduplicate_method_match" >&5 $as_echo "$tor_cv_cflags__Wduplicate_method_match" >&6; } if test x$tor_cv_cflags__Wduplicate_method_match = xyes; then CFLAGS="$CFLAGS -Wduplicate-method-match" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wduplicated-cond" >&5 $as_echo_n "checking whether the compiler accepts -Wduplicated-cond... " >&6; } if ${tor_cv_cflags__Wduplicated_cond+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wduplicated-cond" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wduplicated_cond=yes else tor_cv_cflags__Wduplicated_cond=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wduplicated_cond=yes else tor_can_link__Wduplicated_cond=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wduplicated_cond" >&5 $as_echo "$tor_cv_cflags__Wduplicated_cond" >&6; } if test x$tor_cv_cflags__Wduplicated_cond = xyes; then CFLAGS="$CFLAGS -Wduplicated-cond" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wdynamic-class-memaccess" >&5 $as_echo_n "checking whether the compiler accepts -Wdynamic-class-memaccess... " >&6; } if ${tor_cv_cflags__Wdynamic_class_memaccess+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wdynamic-class-memaccess" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wdynamic_class_memaccess=yes else tor_cv_cflags__Wdynamic_class_memaccess=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wdynamic_class_memaccess=yes else tor_can_link__Wdynamic_class_memaccess=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wdynamic_class_memaccess" >&5 $as_echo "$tor_cv_cflags__Wdynamic_class_memaccess" >&6; } if test x$tor_cv_cflags__Wdynamic_class_memaccess = xyes; then CFLAGS="$CFLAGS -Wdynamic-class-memaccess" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wembedded-directive" >&5 $as_echo_n "checking whether the compiler accepts -Wembedded-directive... " >&6; } if ${tor_cv_cflags__Wembedded_directive+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wembedded-directive" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wembedded_directive=yes else tor_cv_cflags__Wembedded_directive=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wembedded_directive=yes else tor_can_link__Wembedded_directive=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wembedded_directive" >&5 $as_echo "$tor_cv_cflags__Wembedded_directive" >&6; } if test x$tor_cv_cflags__Wembedded_directive = xyes; then CFLAGS="$CFLAGS -Wembedded-directive" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wempty-translation-unit" >&5 $as_echo_n "checking whether the compiler accepts -Wempty-translation-unit... " >&6; } if ${tor_cv_cflags__Wempty_translation_unit+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wempty-translation-unit" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wempty_translation_unit=yes else tor_cv_cflags__Wempty_translation_unit=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wempty_translation_unit=yes else tor_can_link__Wempty_translation_unit=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wempty_translation_unit" >&5 $as_echo "$tor_cv_cflags__Wempty_translation_unit" >&6; } if test x$tor_cv_cflags__Wempty_translation_unit = xyes; then CFLAGS="$CFLAGS -Wempty-translation-unit" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wenum-conversion" >&5 $as_echo_n "checking whether the compiler accepts -Wenum-conversion... " >&6; } if ${tor_cv_cflags__Wenum_conversion+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wenum-conversion" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wenum_conversion=yes else tor_cv_cflags__Wenum_conversion=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wenum_conversion=yes else tor_can_link__Wenum_conversion=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wenum_conversion" >&5 $as_echo "$tor_cv_cflags__Wenum_conversion" >&6; } if test x$tor_cv_cflags__Wenum_conversion = xyes; then CFLAGS="$CFLAGS -Wenum-conversion" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wexit-time-destructors" >&5 $as_echo_n "checking whether the compiler accepts -Wexit-time-destructors... " >&6; } if ${tor_cv_cflags__Wexit_time_destructors+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wexit-time-destructors" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wexit_time_destructors=yes else tor_cv_cflags__Wexit_time_destructors=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wexit_time_destructors=yes else tor_can_link__Wexit_time_destructors=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wexit_time_destructors" >&5 $as_echo "$tor_cv_cflags__Wexit_time_destructors" >&6; } if test x$tor_cv_cflags__Wexit_time_destructors = xyes; then CFLAGS="$CFLAGS -Wexit-time-destructors" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wexplicit-ownership-type" >&5 $as_echo_n "checking whether the compiler accepts -Wexplicit-ownership-type... " >&6; } if ${tor_cv_cflags__Wexplicit_ownership_type+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wexplicit-ownership-type" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wexplicit_ownership_type=yes else tor_cv_cflags__Wexplicit_ownership_type=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wexplicit_ownership_type=yes else tor_can_link__Wexplicit_ownership_type=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wexplicit_ownership_type" >&5 $as_echo "$tor_cv_cflags__Wexplicit_ownership_type" >&6; } if test x$tor_cv_cflags__Wexplicit_ownership_type = xyes; then CFLAGS="$CFLAGS -Wexplicit-ownership-type" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wextern-initializer" >&5 $as_echo_n "checking whether the compiler accepts -Wextern-initializer... " >&6; } if ${tor_cv_cflags__Wextern_initializer+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wextern-initializer" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wextern_initializer=yes else tor_cv_cflags__Wextern_initializer=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wextern_initializer=yes else tor_can_link__Wextern_initializer=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wextern_initializer" >&5 $as_echo "$tor_cv_cflags__Wextern_initializer" >&6; } if test x$tor_cv_cflags__Wextern_initializer = xyes; then CFLAGS="$CFLAGS -Wextern-initializer" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wextra" >&5 $as_echo_n "checking whether the compiler accepts -Wextra... " >&6; } if ${tor_cv_cflags__Wextra+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wextra" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wextra=yes else tor_cv_cflags__Wextra=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wextra=yes else tor_can_link__Wextra=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wextra" >&5 $as_echo "$tor_cv_cflags__Wextra" >&6; } if test x$tor_cv_cflags__Wextra = xyes; then CFLAGS="$CFLAGS -Wextra" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wextra-semi" >&5 $as_echo_n "checking whether the compiler accepts -Wextra-semi... " >&6; } if ${tor_cv_cflags__Wextra_semi+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wextra-semi" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wextra_semi=yes else tor_cv_cflags__Wextra_semi=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wextra_semi=yes else tor_can_link__Wextra_semi=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wextra_semi" >&5 $as_echo "$tor_cv_cflags__Wextra_semi" >&6; } if test x$tor_cv_cflags__Wextra_semi = xyes; then CFLAGS="$CFLAGS -Wextra-semi" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wextra-tokens" >&5 $as_echo_n "checking whether the compiler accepts -Wextra-tokens... " >&6; } if ${tor_cv_cflags__Wextra_tokens+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wextra-tokens" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wextra_tokens=yes else tor_cv_cflags__Wextra_tokens=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wextra_tokens=yes else tor_can_link__Wextra_tokens=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wextra_tokens" >&5 $as_echo "$tor_cv_cflags__Wextra_tokens" >&6; } if test x$tor_cv_cflags__Wextra_tokens = xyes; then CFLAGS="$CFLAGS -Wextra-tokens" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wflexible-array-extensions" >&5 $as_echo_n "checking whether the compiler accepts -Wflexible-array-extensions... " >&6; } if ${tor_cv_cflags__Wflexible_array_extensions+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wflexible-array-extensions" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wflexible_array_extensions=yes else tor_cv_cflags__Wflexible_array_extensions=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wflexible_array_extensions=yes else tor_can_link__Wflexible_array_extensions=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wflexible_array_extensions" >&5 $as_echo "$tor_cv_cflags__Wflexible_array_extensions" >&6; } if test x$tor_cv_cflags__Wflexible_array_extensions = xyes; then CFLAGS="$CFLAGS -Wflexible-array-extensions" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wfloat-conversion" >&5 $as_echo_n "checking whether the compiler accepts -Wfloat-conversion... " >&6; } if ${tor_cv_cflags__Wfloat_conversion+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wfloat-conversion" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wfloat_conversion=yes else tor_cv_cflags__Wfloat_conversion=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wfloat_conversion=yes else tor_can_link__Wfloat_conversion=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wfloat_conversion" >&5 $as_echo "$tor_cv_cflags__Wfloat_conversion" >&6; } if test x$tor_cv_cflags__Wfloat_conversion = xyes; then CFLAGS="$CFLAGS -Wfloat-conversion" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wformat-non-iso" >&5 $as_echo_n "checking whether the compiler accepts -Wformat-non-iso... " >&6; } if ${tor_cv_cflags__Wformat_non_iso+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wformat-non-iso" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wformat_non_iso=yes else tor_cv_cflags__Wformat_non_iso=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wformat_non_iso=yes else tor_can_link__Wformat_non_iso=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wformat_non_iso" >&5 $as_echo "$tor_cv_cflags__Wformat_non_iso" >&6; } if test x$tor_cv_cflags__Wformat_non_iso = xyes; then CFLAGS="$CFLAGS -Wformat-non-iso" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wfour-char-constants" >&5 $as_echo_n "checking whether the compiler accepts -Wfour-char-constants... " >&6; } if ${tor_cv_cflags__Wfour_char_constants+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wfour-char-constants" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wfour_char_constants=yes else tor_cv_cflags__Wfour_char_constants=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wfour_char_constants=yes else tor_can_link__Wfour_char_constants=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wfour_char_constants" >&5 $as_echo "$tor_cv_cflags__Wfour_char_constants" >&6; } if test x$tor_cv_cflags__Wfour_char_constants = xyes; then CFLAGS="$CFLAGS -Wfour-char-constants" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wgcc-compat" >&5 $as_echo_n "checking whether the compiler accepts -Wgcc-compat... " >&6; } if ${tor_cv_cflags__Wgcc_compat+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wgcc-compat" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wgcc_compat=yes else tor_cv_cflags__Wgcc_compat=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wgcc_compat=yes else tor_can_link__Wgcc_compat=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wgcc_compat" >&5 $as_echo "$tor_cv_cflags__Wgcc_compat" >&6; } if test x$tor_cv_cflags__Wgcc_compat = xyes; then CFLAGS="$CFLAGS -Wgcc-compat" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wglobal-constructors" >&5 $as_echo_n "checking whether the compiler accepts -Wglobal-constructors... " >&6; } if ${tor_cv_cflags__Wglobal_constructors+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wglobal-constructors" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wglobal_constructors=yes else tor_cv_cflags__Wglobal_constructors=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wglobal_constructors=yes else tor_can_link__Wglobal_constructors=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wglobal_constructors" >&5 $as_echo "$tor_cv_cflags__Wglobal_constructors" >&6; } if test x$tor_cv_cflags__Wglobal_constructors = xyes; then CFLAGS="$CFLAGS -Wglobal-constructors" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wgnu-array-member-paren-init" >&5 $as_echo_n "checking whether the compiler accepts -Wgnu-array-member-paren-init... " >&6; } if ${tor_cv_cflags__Wgnu_array_member_paren_init+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wgnu-array-member-paren-init" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wgnu_array_member_paren_init=yes else tor_cv_cflags__Wgnu_array_member_paren_init=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wgnu_array_member_paren_init=yes else tor_can_link__Wgnu_array_member_paren_init=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wgnu_array_member_paren_init" >&5 $as_echo "$tor_cv_cflags__Wgnu_array_member_paren_init" >&6; } if test x$tor_cv_cflags__Wgnu_array_member_paren_init = xyes; then CFLAGS="$CFLAGS -Wgnu-array-member-paren-init" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wgnu-designator" >&5 $as_echo_n "checking whether the compiler accepts -Wgnu-designator... " >&6; } if ${tor_cv_cflags__Wgnu_designator+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wgnu-designator" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wgnu_designator=yes else tor_cv_cflags__Wgnu_designator=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wgnu_designator=yes else tor_can_link__Wgnu_designator=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wgnu_designator" >&5 $as_echo "$tor_cv_cflags__Wgnu_designator" >&6; } if test x$tor_cv_cflags__Wgnu_designator = xyes; then CFLAGS="$CFLAGS -Wgnu-designator" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wgnu-static-float-init" >&5 $as_echo_n "checking whether the compiler accepts -Wgnu-static-float-init... " >&6; } if ${tor_cv_cflags__Wgnu_static_float_init+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wgnu-static-float-init" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wgnu_static_float_init=yes else tor_cv_cflags__Wgnu_static_float_init=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wgnu_static_float_init=yes else tor_can_link__Wgnu_static_float_init=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wgnu_static_float_init" >&5 $as_echo "$tor_cv_cflags__Wgnu_static_float_init" >&6; } if test x$tor_cv_cflags__Wgnu_static_float_init = xyes; then CFLAGS="$CFLAGS -Wgnu-static-float-init" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wheader-guard" >&5 $as_echo_n "checking whether the compiler accepts -Wheader-guard... " >&6; } if ${tor_cv_cflags__Wheader_guard+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wheader-guard" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wheader_guard=yes else tor_cv_cflags__Wheader_guard=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wheader_guard=yes else tor_can_link__Wheader_guard=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wheader_guard" >&5 $as_echo "$tor_cv_cflags__Wheader_guard" >&6; } if test x$tor_cv_cflags__Wheader_guard = xyes; then CFLAGS="$CFLAGS -Wheader-guard" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wheader-hygiene" >&5 $as_echo_n "checking whether the compiler accepts -Wheader-hygiene... " >&6; } if ${tor_cv_cflags__Wheader_hygiene+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wheader-hygiene" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wheader_hygiene=yes else tor_cv_cflags__Wheader_hygiene=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wheader_hygiene=yes else tor_can_link__Wheader_hygiene=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wheader_hygiene" >&5 $as_echo "$tor_cv_cflags__Wheader_hygiene" >&6; } if test x$tor_cv_cflags__Wheader_hygiene = xyes; then CFLAGS="$CFLAGS -Wheader-hygiene" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Widiomatic-parentheses" >&5 $as_echo_n "checking whether the compiler accepts -Widiomatic-parentheses... " >&6; } if ${tor_cv_cflags__Widiomatic_parentheses+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Widiomatic-parentheses" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Widiomatic_parentheses=yes else tor_cv_cflags__Widiomatic_parentheses=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Widiomatic_parentheses=yes else tor_can_link__Widiomatic_parentheses=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Widiomatic_parentheses" >&5 $as_echo "$tor_cv_cflags__Widiomatic_parentheses" >&6; } if test x$tor_cv_cflags__Widiomatic_parentheses = xyes; then CFLAGS="$CFLAGS -Widiomatic-parentheses" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wignored-attributes" >&5 $as_echo_n "checking whether the compiler accepts -Wignored-attributes... " >&6; } if ${tor_cv_cflags__Wignored_attributes+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wignored-attributes" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wignored_attributes=yes else tor_cv_cflags__Wignored_attributes=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wignored_attributes=yes else tor_can_link__Wignored_attributes=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wignored_attributes" >&5 $as_echo "$tor_cv_cflags__Wignored_attributes" >&6; } if test x$tor_cv_cflags__Wignored_attributes = xyes; then CFLAGS="$CFLAGS -Wignored-attributes" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wimplicit-atomic-properties" >&5 $as_echo_n "checking whether the compiler accepts -Wimplicit-atomic-properties... " >&6; } if ${tor_cv_cflags__Wimplicit_atomic_properties+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wimplicit-atomic-properties" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wimplicit_atomic_properties=yes else tor_cv_cflags__Wimplicit_atomic_properties=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wimplicit_atomic_properties=yes else tor_can_link__Wimplicit_atomic_properties=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wimplicit_atomic_properties" >&5 $as_echo "$tor_cv_cflags__Wimplicit_atomic_properties" >&6; } if test x$tor_cv_cflags__Wimplicit_atomic_properties = xyes; then CFLAGS="$CFLAGS -Wimplicit-atomic-properties" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wimplicit-conversion-floating-point-to-bool" >&5 $as_echo_n "checking whether the compiler accepts -Wimplicit-conversion-floating-point-to-bool... " >&6; } if ${tor_cv_cflags__Wimplicit_conversion_floating_point_to_bool+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wimplicit-conversion-floating-point-to-bool" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wimplicit_conversion_floating_point_to_bool=yes else tor_cv_cflags__Wimplicit_conversion_floating_point_to_bool=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wimplicit_conversion_floating_point_to_bool=yes else tor_can_link__Wimplicit_conversion_floating_point_to_bool=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wimplicit_conversion_floating_point_to_bool" >&5 $as_echo "$tor_cv_cflags__Wimplicit_conversion_floating_point_to_bool" >&6; } if test x$tor_cv_cflags__Wimplicit_conversion_floating_point_to_bool = xyes; then CFLAGS="$CFLAGS -Wimplicit-conversion-floating-point-to-bool" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wimplicit-exception-spec-mismatch" >&5 $as_echo_n "checking whether the compiler accepts -Wimplicit-exception-spec-mismatch... " >&6; } if ${tor_cv_cflags__Wimplicit_exception_spec_mismatch+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wimplicit-exception-spec-mismatch" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wimplicit_exception_spec_mismatch=yes else tor_cv_cflags__Wimplicit_exception_spec_mismatch=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wimplicit_exception_spec_mismatch=yes else tor_can_link__Wimplicit_exception_spec_mismatch=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wimplicit_exception_spec_mismatch" >&5 $as_echo "$tor_cv_cflags__Wimplicit_exception_spec_mismatch" >&6; } if test x$tor_cv_cflags__Wimplicit_exception_spec_mismatch = xyes; then CFLAGS="$CFLAGS -Wimplicit-exception-spec-mismatch" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wimplicit-fallthrough" >&5 $as_echo_n "checking whether the compiler accepts -Wimplicit-fallthrough... " >&6; } if ${tor_cv_cflags__Wimplicit_fallthrough+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wimplicit-fallthrough" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wimplicit_fallthrough=yes else tor_cv_cflags__Wimplicit_fallthrough=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wimplicit_fallthrough=yes else tor_can_link__Wimplicit_fallthrough=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wimplicit_fallthrough" >&5 $as_echo "$tor_cv_cflags__Wimplicit_fallthrough" >&6; } if test x$tor_cv_cflags__Wimplicit_fallthrough = xyes; then CFLAGS="$CFLAGS -Wimplicit-fallthrough" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wimplicit-fallthrough-per-function" >&5 $as_echo_n "checking whether the compiler accepts -Wimplicit-fallthrough-per-function... " >&6; } if ${tor_cv_cflags__Wimplicit_fallthrough_per_function+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wimplicit-fallthrough-per-function" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wimplicit_fallthrough_per_function=yes else tor_cv_cflags__Wimplicit_fallthrough_per_function=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wimplicit_fallthrough_per_function=yes else tor_can_link__Wimplicit_fallthrough_per_function=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wimplicit_fallthrough_per_function" >&5 $as_echo "$tor_cv_cflags__Wimplicit_fallthrough_per_function" >&6; } if test x$tor_cv_cflags__Wimplicit_fallthrough_per_function = xyes; then CFLAGS="$CFLAGS -Wimplicit-fallthrough-per-function" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wimplicit-retain-self" >&5 $as_echo_n "checking whether the compiler accepts -Wimplicit-retain-self... " >&6; } if ${tor_cv_cflags__Wimplicit_retain_self+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wimplicit-retain-self" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wimplicit_retain_self=yes else tor_cv_cflags__Wimplicit_retain_self=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wimplicit_retain_self=yes else tor_can_link__Wimplicit_retain_self=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wimplicit_retain_self" >&5 $as_echo "$tor_cv_cflags__Wimplicit_retain_self" >&6; } if test x$tor_cv_cflags__Wimplicit_retain_self = xyes; then CFLAGS="$CFLAGS -Wimplicit-retain-self" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wimport-preprocessor-directive-pedantic" >&5 $as_echo_n "checking whether the compiler accepts -Wimport-preprocessor-directive-pedantic... " >&6; } if ${tor_cv_cflags__Wimport_preprocessor_directive_pedantic+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wimport-preprocessor-directive-pedantic" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wimport_preprocessor_directive_pedantic=yes else tor_cv_cflags__Wimport_preprocessor_directive_pedantic=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wimport_preprocessor_directive_pedantic=yes else tor_can_link__Wimport_preprocessor_directive_pedantic=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wimport_preprocessor_directive_pedantic" >&5 $as_echo "$tor_cv_cflags__Wimport_preprocessor_directive_pedantic" >&6; } if test x$tor_cv_cflags__Wimport_preprocessor_directive_pedantic = xyes; then CFLAGS="$CFLAGS -Wimport-preprocessor-directive-pedantic" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wincompatible-library-redeclaration" >&5 $as_echo_n "checking whether the compiler accepts -Wincompatible-library-redeclaration... " >&6; } if ${tor_cv_cflags__Wincompatible_library_redeclaration+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wincompatible-library-redeclaration" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wincompatible_library_redeclaration=yes else tor_cv_cflags__Wincompatible_library_redeclaration=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wincompatible_library_redeclaration=yes else tor_can_link__Wincompatible_library_redeclaration=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wincompatible_library_redeclaration" >&5 $as_echo "$tor_cv_cflags__Wincompatible_library_redeclaration" >&6; } if test x$tor_cv_cflags__Wincompatible_library_redeclaration = xyes; then CFLAGS="$CFLAGS -Wincompatible-library-redeclaration" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wincompatible-pointer-types-discards-qualifiers" >&5 $as_echo_n "checking whether the compiler accepts -Wincompatible-pointer-types-discards-qualifiers... " >&6; } if ${tor_cv_cflags__Wincompatible_pointer_types_discards_qualifiers+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wincompatible-pointer-types-discards-qualifiers" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wincompatible_pointer_types_discards_qualifiers=yes else tor_cv_cflags__Wincompatible_pointer_types_discards_qualifiers=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wincompatible_pointer_types_discards_qualifiers=yes else tor_can_link__Wincompatible_pointer_types_discards_qualifiers=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wincompatible_pointer_types_discards_qualifiers" >&5 $as_echo "$tor_cv_cflags__Wincompatible_pointer_types_discards_qualifiers" >&6; } if test x$tor_cv_cflags__Wincompatible_pointer_types_discards_qualifiers = xyes; then CFLAGS="$CFLAGS -Wincompatible-pointer-types-discards-qualifiers" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wincomplete-implementation" >&5 $as_echo_n "checking whether the compiler accepts -Wincomplete-implementation... " >&6; } if ${tor_cv_cflags__Wincomplete_implementation+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wincomplete-implementation" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wincomplete_implementation=yes else tor_cv_cflags__Wincomplete_implementation=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wincomplete_implementation=yes else tor_can_link__Wincomplete_implementation=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wincomplete_implementation" >&5 $as_echo "$tor_cv_cflags__Wincomplete_implementation" >&6; } if test x$tor_cv_cflags__Wincomplete_implementation = xyes; then CFLAGS="$CFLAGS -Wincomplete-implementation" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wincomplete-module" >&5 $as_echo_n "checking whether the compiler accepts -Wincomplete-module... " >&6; } if ${tor_cv_cflags__Wincomplete_module+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wincomplete-module" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wincomplete_module=yes else tor_cv_cflags__Wincomplete_module=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wincomplete_module=yes else tor_can_link__Wincomplete_module=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wincomplete_module" >&5 $as_echo "$tor_cv_cflags__Wincomplete_module" >&6; } if test x$tor_cv_cflags__Wincomplete_module = xyes; then CFLAGS="$CFLAGS -Wincomplete-module" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wincomplete-umbrella" >&5 $as_echo_n "checking whether the compiler accepts -Wincomplete-umbrella... " >&6; } if ${tor_cv_cflags__Wincomplete_umbrella+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wincomplete-umbrella" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wincomplete_umbrella=yes else tor_cv_cflags__Wincomplete_umbrella=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wincomplete_umbrella=yes else tor_can_link__Wincomplete_umbrella=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wincomplete_umbrella" >&5 $as_echo "$tor_cv_cflags__Wincomplete_umbrella" >&6; } if test x$tor_cv_cflags__Wincomplete_umbrella = xyes; then CFLAGS="$CFLAGS -Wincomplete-umbrella" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Winit-self" >&5 $as_echo_n "checking whether the compiler accepts -Winit-self... " >&6; } if ${tor_cv_cflags__Winit_self+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Winit-self" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Winit_self=yes else tor_cv_cflags__Winit_self=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Winit_self=yes else tor_can_link__Winit_self=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Winit_self" >&5 $as_echo "$tor_cv_cflags__Winit_self" >&6; } if test x$tor_cv_cflags__Winit_self = xyes; then CFLAGS="$CFLAGS -Winit-self" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wint-conversions" >&5 $as_echo_n "checking whether the compiler accepts -Wint-conversions... " >&6; } if ${tor_cv_cflags__Wint_conversions+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wint-conversions" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wint_conversions=yes else tor_cv_cflags__Wint_conversions=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wint_conversions=yes else tor_can_link__Wint_conversions=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wint_conversions" >&5 $as_echo "$tor_cv_cflags__Wint_conversions" >&6; } if test x$tor_cv_cflags__Wint_conversions = xyes; then CFLAGS="$CFLAGS -Wint-conversions" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wint-to-void-pointer-cast" >&5 $as_echo_n "checking whether the compiler accepts -Wint-to-void-pointer-cast... " >&6; } if ${tor_cv_cflags__Wint_to_void_pointer_cast+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wint-to-void-pointer-cast" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wint_to_void_pointer_cast=yes else tor_cv_cflags__Wint_to_void_pointer_cast=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wint_to_void_pointer_cast=yes else tor_can_link__Wint_to_void_pointer_cast=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wint_to_void_pointer_cast" >&5 $as_echo "$tor_cv_cflags__Wint_to_void_pointer_cast" >&6; } if test x$tor_cv_cflags__Wint_to_void_pointer_cast = xyes; then CFLAGS="$CFLAGS -Wint-to-void-pointer-cast" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Winteger-overflow" >&5 $as_echo_n "checking whether the compiler accepts -Winteger-overflow... " >&6; } if ${tor_cv_cflags__Winteger_overflow+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Winteger-overflow" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Winteger_overflow=yes else tor_cv_cflags__Winteger_overflow=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Winteger_overflow=yes else tor_can_link__Winteger_overflow=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Winteger_overflow" >&5 $as_echo "$tor_cv_cflags__Winteger_overflow" >&6; } if test x$tor_cv_cflags__Winteger_overflow = xyes; then CFLAGS="$CFLAGS -Winteger-overflow" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Winvalid-constexpr" >&5 $as_echo_n "checking whether the compiler accepts -Winvalid-constexpr... " >&6; } if ${tor_cv_cflags__Winvalid_constexpr+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Winvalid-constexpr" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Winvalid_constexpr=yes else tor_cv_cflags__Winvalid_constexpr=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Winvalid_constexpr=yes else tor_can_link__Winvalid_constexpr=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Winvalid_constexpr" >&5 $as_echo "$tor_cv_cflags__Winvalid_constexpr" >&6; } if test x$tor_cv_cflags__Winvalid_constexpr = xyes; then CFLAGS="$CFLAGS -Winvalid-constexpr" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Winvalid-iboutlet" >&5 $as_echo_n "checking whether the compiler accepts -Winvalid-iboutlet... " >&6; } if ${tor_cv_cflags__Winvalid_iboutlet+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Winvalid-iboutlet" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Winvalid_iboutlet=yes else tor_cv_cflags__Winvalid_iboutlet=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Winvalid_iboutlet=yes else tor_can_link__Winvalid_iboutlet=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Winvalid_iboutlet" >&5 $as_echo "$tor_cv_cflags__Winvalid_iboutlet" >&6; } if test x$tor_cv_cflags__Winvalid_iboutlet = xyes; then CFLAGS="$CFLAGS -Winvalid-iboutlet" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Winvalid-noreturn" >&5 $as_echo_n "checking whether the compiler accepts -Winvalid-noreturn... " >&6; } if ${tor_cv_cflags__Winvalid_noreturn+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Winvalid-noreturn" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Winvalid_noreturn=yes else tor_cv_cflags__Winvalid_noreturn=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Winvalid_noreturn=yes else tor_can_link__Winvalid_noreturn=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Winvalid_noreturn" >&5 $as_echo "$tor_cv_cflags__Winvalid_noreturn" >&6; } if test x$tor_cv_cflags__Winvalid_noreturn = xyes; then CFLAGS="$CFLAGS -Winvalid-noreturn" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Winvalid-pp-token" >&5 $as_echo_n "checking whether the compiler accepts -Winvalid-pp-token... " >&6; } if ${tor_cv_cflags__Winvalid_pp_token+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Winvalid-pp-token" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Winvalid_pp_token=yes else tor_cv_cflags__Winvalid_pp_token=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Winvalid_pp_token=yes else tor_can_link__Winvalid_pp_token=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Winvalid_pp_token" >&5 $as_echo "$tor_cv_cflags__Winvalid_pp_token" >&6; } if test x$tor_cv_cflags__Winvalid_pp_token = xyes; then CFLAGS="$CFLAGS -Winvalid-pp-token" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Winvalid-source-encoding" >&5 $as_echo_n "checking whether the compiler accepts -Winvalid-source-encoding... " >&6; } if ${tor_cv_cflags__Winvalid_source_encoding+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Winvalid-source-encoding" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Winvalid_source_encoding=yes else tor_cv_cflags__Winvalid_source_encoding=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Winvalid_source_encoding=yes else tor_can_link__Winvalid_source_encoding=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Winvalid_source_encoding" >&5 $as_echo "$tor_cv_cflags__Winvalid_source_encoding" >&6; } if test x$tor_cv_cflags__Winvalid_source_encoding = xyes; then CFLAGS="$CFLAGS -Winvalid-source-encoding" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Winvalid-token-paste" >&5 $as_echo_n "checking whether the compiler accepts -Winvalid-token-paste... " >&6; } if ${tor_cv_cflags__Winvalid_token_paste+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Winvalid-token-paste" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Winvalid_token_paste=yes else tor_cv_cflags__Winvalid_token_paste=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Winvalid_token_paste=yes else tor_can_link__Winvalid_token_paste=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Winvalid_token_paste" >&5 $as_echo "$tor_cv_cflags__Winvalid_token_paste" >&6; } if test x$tor_cv_cflags__Winvalid_token_paste = xyes; then CFLAGS="$CFLAGS -Winvalid-token-paste" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wknr-promoted-parameter" >&5 $as_echo_n "checking whether the compiler accepts -Wknr-promoted-parameter... " >&6; } if ${tor_cv_cflags__Wknr_promoted_parameter+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wknr-promoted-parameter" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wknr_promoted_parameter=yes else tor_cv_cflags__Wknr_promoted_parameter=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wknr_promoted_parameter=yes else tor_can_link__Wknr_promoted_parameter=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wknr_promoted_parameter" >&5 $as_echo "$tor_cv_cflags__Wknr_promoted_parameter" >&6; } if test x$tor_cv_cflags__Wknr_promoted_parameter = xyes; then CFLAGS="$CFLAGS -Wknr-promoted-parameter" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wlanguage-extension-token" >&5 $as_echo_n "checking whether the compiler accepts -Wlanguage-extension-token... " >&6; } if ${tor_cv_cflags__Wlanguage_extension_token+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wlanguage-extension-token" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wlanguage_extension_token=yes else tor_cv_cflags__Wlanguage_extension_token=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wlanguage_extension_token=yes else tor_can_link__Wlanguage_extension_token=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wlanguage_extension_token" >&5 $as_echo "$tor_cv_cflags__Wlanguage_extension_token" >&6; } if test x$tor_cv_cflags__Wlanguage_extension_token = xyes; then CFLAGS="$CFLAGS -Wlanguage-extension-token" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wlarge-by-value-copy" >&5 $as_echo_n "checking whether the compiler accepts -Wlarge-by-value-copy... " >&6; } if ${tor_cv_cflags__Wlarge_by_value_copy+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wlarge-by-value-copy" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wlarge_by_value_copy=yes else tor_cv_cflags__Wlarge_by_value_copy=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wlarge_by_value_copy=yes else tor_can_link__Wlarge_by_value_copy=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wlarge_by_value_copy" >&5 $as_echo "$tor_cv_cflags__Wlarge_by_value_copy" >&6; } if test x$tor_cv_cflags__Wlarge_by_value_copy = xyes; then CFLAGS="$CFLAGS -Wlarge-by-value-copy" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wliteral-conversion" >&5 $as_echo_n "checking whether the compiler accepts -Wliteral-conversion... " >&6; } if ${tor_cv_cflags__Wliteral_conversion+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wliteral-conversion" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wliteral_conversion=yes else tor_cv_cflags__Wliteral_conversion=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wliteral_conversion=yes else tor_can_link__Wliteral_conversion=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wliteral_conversion" >&5 $as_echo "$tor_cv_cflags__Wliteral_conversion" >&6; } if test x$tor_cv_cflags__Wliteral_conversion = xyes; then CFLAGS="$CFLAGS -Wliteral-conversion" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wliteral-range" >&5 $as_echo_n "checking whether the compiler accepts -Wliteral-range... " >&6; } if ${tor_cv_cflags__Wliteral_range+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wliteral-range" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wliteral_range=yes else tor_cv_cflags__Wliteral_range=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wliteral_range=yes else tor_can_link__Wliteral_range=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wliteral_range" >&5 $as_echo "$tor_cv_cflags__Wliteral_range" >&6; } if test x$tor_cv_cflags__Wliteral_range = xyes; then CFLAGS="$CFLAGS -Wliteral-range" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wlocal-type-template-args" >&5 $as_echo_n "checking whether the compiler accepts -Wlocal-type-template-args... " >&6; } if ${tor_cv_cflags__Wlocal_type_template_args+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wlocal-type-template-args" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wlocal_type_template_args=yes else tor_cv_cflags__Wlocal_type_template_args=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wlocal_type_template_args=yes else tor_can_link__Wlocal_type_template_args=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wlocal_type_template_args" >&5 $as_echo "$tor_cv_cflags__Wlocal_type_template_args" >&6; } if test x$tor_cv_cflags__Wlocal_type_template_args = xyes; then CFLAGS="$CFLAGS -Wlocal-type-template-args" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wlogical-op" >&5 $as_echo_n "checking whether the compiler accepts -Wlogical-op... " >&6; } if ${tor_cv_cflags__Wlogical_op+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wlogical-op" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wlogical_op=yes else tor_cv_cflags__Wlogical_op=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wlogical_op=yes else tor_can_link__Wlogical_op=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wlogical_op" >&5 $as_echo "$tor_cv_cflags__Wlogical_op" >&6; } if test x$tor_cv_cflags__Wlogical_op = xyes; then CFLAGS="$CFLAGS -Wlogical-op" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wloop-analysis" >&5 $as_echo_n "checking whether the compiler accepts -Wloop-analysis... " >&6; } if ${tor_cv_cflags__Wloop_analysis+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wloop-analysis" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wloop_analysis=yes else tor_cv_cflags__Wloop_analysis=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wloop_analysis=yes else tor_can_link__Wloop_analysis=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wloop_analysis" >&5 $as_echo "$tor_cv_cflags__Wloop_analysis" >&6; } if test x$tor_cv_cflags__Wloop_analysis = xyes; then CFLAGS="$CFLAGS -Wloop-analysis" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wmain-return-type" >&5 $as_echo_n "checking whether the compiler accepts -Wmain-return-type... " >&6; } if ${tor_cv_cflags__Wmain_return_type+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wmain-return-type" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wmain_return_type=yes else tor_cv_cflags__Wmain_return_type=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wmain_return_type=yes else tor_can_link__Wmain_return_type=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wmain_return_type" >&5 $as_echo "$tor_cv_cflags__Wmain_return_type" >&6; } if test x$tor_cv_cflags__Wmain_return_type = xyes; then CFLAGS="$CFLAGS -Wmain-return-type" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wmalformed-warning-check" >&5 $as_echo_n "checking whether the compiler accepts -Wmalformed-warning-check... " >&6; } if ${tor_cv_cflags__Wmalformed_warning_check+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wmalformed-warning-check" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wmalformed_warning_check=yes else tor_cv_cflags__Wmalformed_warning_check=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wmalformed_warning_check=yes else tor_can_link__Wmalformed_warning_check=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wmalformed_warning_check" >&5 $as_echo "$tor_cv_cflags__Wmalformed_warning_check" >&6; } if test x$tor_cv_cflags__Wmalformed_warning_check = xyes; then CFLAGS="$CFLAGS -Wmalformed-warning-check" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wmethod-signatures" >&5 $as_echo_n "checking whether the compiler accepts -Wmethod-signatures... " >&6; } if ${tor_cv_cflags__Wmethod_signatures+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wmethod-signatures" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wmethod_signatures=yes else tor_cv_cflags__Wmethod_signatures=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wmethod_signatures=yes else tor_can_link__Wmethod_signatures=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wmethod_signatures" >&5 $as_echo "$tor_cv_cflags__Wmethod_signatures" >&6; } if test x$tor_cv_cflags__Wmethod_signatures = xyes; then CFLAGS="$CFLAGS -Wmethod-signatures" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wmicrosoft" >&5 $as_echo_n "checking whether the compiler accepts -Wmicrosoft... " >&6; } if ${tor_cv_cflags__Wmicrosoft+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wmicrosoft" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wmicrosoft=yes else tor_cv_cflags__Wmicrosoft=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wmicrosoft=yes else tor_can_link__Wmicrosoft=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wmicrosoft" >&5 $as_echo "$tor_cv_cflags__Wmicrosoft" >&6; } if test x$tor_cv_cflags__Wmicrosoft = xyes; then CFLAGS="$CFLAGS -Wmicrosoft" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wmicrosoft-exists" >&5 $as_echo_n "checking whether the compiler accepts -Wmicrosoft-exists... " >&6; } if ${tor_cv_cflags__Wmicrosoft_exists+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wmicrosoft-exists" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wmicrosoft_exists=yes else tor_cv_cflags__Wmicrosoft_exists=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wmicrosoft_exists=yes else tor_can_link__Wmicrosoft_exists=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wmicrosoft_exists" >&5 $as_echo "$tor_cv_cflags__Wmicrosoft_exists" >&6; } if test x$tor_cv_cflags__Wmicrosoft_exists = xyes; then CFLAGS="$CFLAGS -Wmicrosoft-exists" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wmismatched-parameter-types" >&5 $as_echo_n "checking whether the compiler accepts -Wmismatched-parameter-types... " >&6; } if ${tor_cv_cflags__Wmismatched_parameter_types+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wmismatched-parameter-types" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wmismatched_parameter_types=yes else tor_cv_cflags__Wmismatched_parameter_types=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wmismatched_parameter_types=yes else tor_can_link__Wmismatched_parameter_types=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wmismatched_parameter_types" >&5 $as_echo "$tor_cv_cflags__Wmismatched_parameter_types" >&6; } if test x$tor_cv_cflags__Wmismatched_parameter_types = xyes; then CFLAGS="$CFLAGS -Wmismatched-parameter-types" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wmismatched-return-types" >&5 $as_echo_n "checking whether the compiler accepts -Wmismatched-return-types... " >&6; } if ${tor_cv_cflags__Wmismatched_return_types+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wmismatched-return-types" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wmismatched_return_types=yes else tor_cv_cflags__Wmismatched_return_types=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wmismatched_return_types=yes else tor_can_link__Wmismatched_return_types=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wmismatched_return_types" >&5 $as_echo "$tor_cv_cflags__Wmismatched_return_types" >&6; } if test x$tor_cv_cflags__Wmismatched_return_types = xyes; then CFLAGS="$CFLAGS -Wmismatched-return-types" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wmissing-field-initializers" >&5 $as_echo_n "checking whether the compiler accepts -Wmissing-field-initializers... " >&6; } if ${tor_cv_cflags__Wmissing_field_initializers+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wmissing-field-initializers" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wmissing_field_initializers=yes else tor_cv_cflags__Wmissing_field_initializers=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wmissing_field_initializers=yes else tor_can_link__Wmissing_field_initializers=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wmissing_field_initializers" >&5 $as_echo "$tor_cv_cflags__Wmissing_field_initializers" >&6; } if test x$tor_cv_cflags__Wmissing_field_initializers = xyes; then CFLAGS="$CFLAGS -Wmissing-field-initializers" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wmissing-format-attribute" >&5 $as_echo_n "checking whether the compiler accepts -Wmissing-format-attribute... " >&6; } if ${tor_cv_cflags__Wmissing_format_attribute+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wmissing-format-attribute" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wmissing_format_attribute=yes else tor_cv_cflags__Wmissing_format_attribute=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wmissing_format_attribute=yes else tor_can_link__Wmissing_format_attribute=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wmissing_format_attribute" >&5 $as_echo "$tor_cv_cflags__Wmissing_format_attribute" >&6; } if test x$tor_cv_cflags__Wmissing_format_attribute = xyes; then CFLAGS="$CFLAGS -Wmissing-format-attribute" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wmissing-noreturn" >&5 $as_echo_n "checking whether the compiler accepts -Wmissing-noreturn... " >&6; } if ${tor_cv_cflags__Wmissing_noreturn+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wmissing-noreturn" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wmissing_noreturn=yes else tor_cv_cflags__Wmissing_noreturn=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wmissing_noreturn=yes else tor_can_link__Wmissing_noreturn=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wmissing_noreturn" >&5 $as_echo "$tor_cv_cflags__Wmissing_noreturn" >&6; } if test x$tor_cv_cflags__Wmissing_noreturn = xyes; then CFLAGS="$CFLAGS -Wmissing-noreturn" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wmissing-selector-name" >&5 $as_echo_n "checking whether the compiler accepts -Wmissing-selector-name... " >&6; } if ${tor_cv_cflags__Wmissing_selector_name+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wmissing-selector-name" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wmissing_selector_name=yes else tor_cv_cflags__Wmissing_selector_name=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wmissing_selector_name=yes else tor_can_link__Wmissing_selector_name=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wmissing_selector_name" >&5 $as_echo "$tor_cv_cflags__Wmissing_selector_name" >&6; } if test x$tor_cv_cflags__Wmissing_selector_name = xyes; then CFLAGS="$CFLAGS -Wmissing-selector-name" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wmissing-sysroot" >&5 $as_echo_n "checking whether the compiler accepts -Wmissing-sysroot... " >&6; } if ${tor_cv_cflags__Wmissing_sysroot+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wmissing-sysroot" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wmissing_sysroot=yes else tor_cv_cflags__Wmissing_sysroot=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wmissing_sysroot=yes else tor_can_link__Wmissing_sysroot=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wmissing_sysroot" >&5 $as_echo "$tor_cv_cflags__Wmissing_sysroot" >&6; } if test x$tor_cv_cflags__Wmissing_sysroot = xyes; then CFLAGS="$CFLAGS -Wmissing-sysroot" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wmissing-variable-declarations" >&5 $as_echo_n "checking whether the compiler accepts -Wmissing-variable-declarations... " >&6; } if ${tor_cv_cflags__Wmissing_variable_declarations+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wmissing-variable-declarations" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wmissing_variable_declarations=yes else tor_cv_cflags__Wmissing_variable_declarations=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wmissing_variable_declarations=yes else tor_can_link__Wmissing_variable_declarations=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wmissing_variable_declarations" >&5 $as_echo "$tor_cv_cflags__Wmissing_variable_declarations" >&6; } if test x$tor_cv_cflags__Wmissing_variable_declarations = xyes; then CFLAGS="$CFLAGS -Wmissing-variable-declarations" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wmodule-conflict" >&5 $as_echo_n "checking whether the compiler accepts -Wmodule-conflict... " >&6; } if ${tor_cv_cflags__Wmodule_conflict+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wmodule-conflict" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wmodule_conflict=yes else tor_cv_cflags__Wmodule_conflict=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wmodule_conflict=yes else tor_can_link__Wmodule_conflict=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wmodule_conflict" >&5 $as_echo "$tor_cv_cflags__Wmodule_conflict" >&6; } if test x$tor_cv_cflags__Wmodule_conflict = xyes; then CFLAGS="$CFLAGS -Wmodule-conflict" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wnested-anon-types" >&5 $as_echo_n "checking whether the compiler accepts -Wnested-anon-types... " >&6; } if ${tor_cv_cflags__Wnested_anon_types+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wnested-anon-types" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wnested_anon_types=yes else tor_cv_cflags__Wnested_anon_types=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wnested_anon_types=yes else tor_can_link__Wnested_anon_types=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wnested_anon_types" >&5 $as_echo "$tor_cv_cflags__Wnested_anon_types" >&6; } if test x$tor_cv_cflags__Wnested_anon_types = xyes; then CFLAGS="$CFLAGS -Wnested-anon-types" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wnewline-eof" >&5 $as_echo_n "checking whether the compiler accepts -Wnewline-eof... " >&6; } if ${tor_cv_cflags__Wnewline_eof+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wnewline-eof" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wnewline_eof=yes else tor_cv_cflags__Wnewline_eof=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wnewline_eof=yes else tor_can_link__Wnewline_eof=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wnewline_eof" >&5 $as_echo "$tor_cv_cflags__Wnewline_eof" >&6; } if test x$tor_cv_cflags__Wnewline_eof = xyes; then CFLAGS="$CFLAGS -Wnewline-eof" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wnon-literal-null-conversion" >&5 $as_echo_n "checking whether the compiler accepts -Wnon-literal-null-conversion... " >&6; } if ${tor_cv_cflags__Wnon_literal_null_conversion+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wnon-literal-null-conversion" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wnon_literal_null_conversion=yes else tor_cv_cflags__Wnon_literal_null_conversion=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wnon_literal_null_conversion=yes else tor_can_link__Wnon_literal_null_conversion=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wnon_literal_null_conversion" >&5 $as_echo "$tor_cv_cflags__Wnon_literal_null_conversion" >&6; } if test x$tor_cv_cflags__Wnon_literal_null_conversion = xyes; then CFLAGS="$CFLAGS -Wnon-literal-null-conversion" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wnon-pod-varargs" >&5 $as_echo_n "checking whether the compiler accepts -Wnon-pod-varargs... " >&6; } if ${tor_cv_cflags__Wnon_pod_varargs+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wnon-pod-varargs" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wnon_pod_varargs=yes else tor_cv_cflags__Wnon_pod_varargs=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wnon_pod_varargs=yes else tor_can_link__Wnon_pod_varargs=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wnon_pod_varargs" >&5 $as_echo "$tor_cv_cflags__Wnon_pod_varargs" >&6; } if test x$tor_cv_cflags__Wnon_pod_varargs = xyes; then CFLAGS="$CFLAGS -Wnon-pod-varargs" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wnonportable-cfstrings" >&5 $as_echo_n "checking whether the compiler accepts -Wnonportable-cfstrings... " >&6; } if ${tor_cv_cflags__Wnonportable_cfstrings+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wnonportable-cfstrings" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wnonportable_cfstrings=yes else tor_cv_cflags__Wnonportable_cfstrings=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wnonportable_cfstrings=yes else tor_can_link__Wnonportable_cfstrings=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wnonportable_cfstrings" >&5 $as_echo "$tor_cv_cflags__Wnonportable_cfstrings" >&6; } if test x$tor_cv_cflags__Wnonportable_cfstrings = xyes; then CFLAGS="$CFLAGS -Wnonportable-cfstrings" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wnormalized=id" >&5 $as_echo_n "checking whether the compiler accepts -Wnormalized=id... " >&6; } if ${tor_cv_cflags__Wnormalized_id+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wnormalized=id" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wnormalized_id=yes else tor_cv_cflags__Wnormalized_id=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wnormalized_id=yes else tor_can_link__Wnormalized_id=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wnormalized_id" >&5 $as_echo "$tor_cv_cflags__Wnormalized_id" >&6; } if test x$tor_cv_cflags__Wnormalized_id = xyes; then CFLAGS="$CFLAGS -Wnormalized=id" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wnull-arithmetic" >&5 $as_echo_n "checking whether the compiler accepts -Wnull-arithmetic... " >&6; } if ${tor_cv_cflags__Wnull_arithmetic+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wnull-arithmetic" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wnull_arithmetic=yes else tor_cv_cflags__Wnull_arithmetic=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wnull_arithmetic=yes else tor_can_link__Wnull_arithmetic=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wnull_arithmetic" >&5 $as_echo "$tor_cv_cflags__Wnull_arithmetic" >&6; } if test x$tor_cv_cflags__Wnull_arithmetic = xyes; then CFLAGS="$CFLAGS -Wnull-arithmetic" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wnull-character" >&5 $as_echo_n "checking whether the compiler accepts -Wnull-character... " >&6; } if ${tor_cv_cflags__Wnull_character+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wnull-character" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wnull_character=yes else tor_cv_cflags__Wnull_character=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wnull_character=yes else tor_can_link__Wnull_character=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wnull_character" >&5 $as_echo "$tor_cv_cflags__Wnull_character" >&6; } if test x$tor_cv_cflags__Wnull_character = xyes; then CFLAGS="$CFLAGS -Wnull-character" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wnull-conversion" >&5 $as_echo_n "checking whether the compiler accepts -Wnull-conversion... " >&6; } if ${tor_cv_cflags__Wnull_conversion+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wnull-conversion" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wnull_conversion=yes else tor_cv_cflags__Wnull_conversion=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wnull_conversion=yes else tor_can_link__Wnull_conversion=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wnull_conversion" >&5 $as_echo "$tor_cv_cflags__Wnull_conversion" >&6; } if test x$tor_cv_cflags__Wnull_conversion = xyes; then CFLAGS="$CFLAGS -Wnull-conversion" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wnull-dereference" >&5 $as_echo_n "checking whether the compiler accepts -Wnull-dereference... " >&6; } if ${tor_cv_cflags__Wnull_dereference+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wnull-dereference" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wnull_dereference=yes else tor_cv_cflags__Wnull_dereference=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wnull_dereference=yes else tor_can_link__Wnull_dereference=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wnull_dereference" >&5 $as_echo "$tor_cv_cflags__Wnull_dereference" >&6; } if test x$tor_cv_cflags__Wnull_dereference = xyes; then CFLAGS="$CFLAGS -Wnull-dereference" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wout-of-line-declaration" >&5 $as_echo_n "checking whether the compiler accepts -Wout-of-line-declaration... " >&6; } if ${tor_cv_cflags__Wout_of_line_declaration+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wout-of-line-declaration" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wout_of_line_declaration=yes else tor_cv_cflags__Wout_of_line_declaration=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wout_of_line_declaration=yes else tor_can_link__Wout_of_line_declaration=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wout_of_line_declaration" >&5 $as_echo "$tor_cv_cflags__Wout_of_line_declaration" >&6; } if test x$tor_cv_cflags__Wout_of_line_declaration = xyes; then CFLAGS="$CFLAGS -Wout-of-line-declaration" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wover-aligned" >&5 $as_echo_n "checking whether the compiler accepts -Wover-aligned... " >&6; } if ${tor_cv_cflags__Wover_aligned+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wover-aligned" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wover_aligned=yes else tor_cv_cflags__Wover_aligned=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wover_aligned=yes else tor_can_link__Wover_aligned=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wover_aligned" >&5 $as_echo "$tor_cv_cflags__Wover_aligned" >&6; } if test x$tor_cv_cflags__Wover_aligned = xyes; then CFLAGS="$CFLAGS -Wover-aligned" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Woverlength-strings" >&5 $as_echo_n "checking whether the compiler accepts -Woverlength-strings... " >&6; } if ${tor_cv_cflags__Woverlength_strings+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Woverlength-strings" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Woverlength_strings=yes else tor_cv_cflags__Woverlength_strings=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Woverlength_strings=yes else tor_can_link__Woverlength_strings=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Woverlength_strings" >&5 $as_echo "$tor_cv_cflags__Woverlength_strings" >&6; } if test x$tor_cv_cflags__Woverlength_strings = xyes; then CFLAGS="$CFLAGS -Woverlength-strings" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Woverride-init" >&5 $as_echo_n "checking whether the compiler accepts -Woverride-init... " >&6; } if ${tor_cv_cflags__Woverride_init+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Woverride-init" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Woverride_init=yes else tor_cv_cflags__Woverride_init=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Woverride_init=yes else tor_can_link__Woverride_init=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Woverride_init" >&5 $as_echo "$tor_cv_cflags__Woverride_init" >&6; } if test x$tor_cv_cflags__Woverride_init = xyes; then CFLAGS="$CFLAGS -Woverride-init" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Woverriding-method-mismatch" >&5 $as_echo_n "checking whether the compiler accepts -Woverriding-method-mismatch... " >&6; } if ${tor_cv_cflags__Woverriding_method_mismatch+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Woverriding-method-mismatch" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Woverriding_method_mismatch=yes else tor_cv_cflags__Woverriding_method_mismatch=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Woverriding_method_mismatch=yes else tor_can_link__Woverriding_method_mismatch=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Woverriding_method_mismatch" >&5 $as_echo "$tor_cv_cflags__Woverriding_method_mismatch" >&6; } if test x$tor_cv_cflags__Woverriding_method_mismatch = xyes; then CFLAGS="$CFLAGS -Woverriding-method-mismatch" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wpointer-type-mismatch" >&5 $as_echo_n "checking whether the compiler accepts -Wpointer-type-mismatch... " >&6; } if ${tor_cv_cflags__Wpointer_type_mismatch+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wpointer-type-mismatch" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wpointer_type_mismatch=yes else tor_cv_cflags__Wpointer_type_mismatch=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wpointer_type_mismatch=yes else tor_can_link__Wpointer_type_mismatch=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wpointer_type_mismatch" >&5 $as_echo "$tor_cv_cflags__Wpointer_type_mismatch" >&6; } if test x$tor_cv_cflags__Wpointer_type_mismatch = xyes; then CFLAGS="$CFLAGS -Wpointer-type-mismatch" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wpredefined-identifier-outside-function" >&5 $as_echo_n "checking whether the compiler accepts -Wpredefined-identifier-outside-function... " >&6; } if ${tor_cv_cflags__Wpredefined_identifier_outside_function+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wpredefined-identifier-outside-function" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wpredefined_identifier_outside_function=yes else tor_cv_cflags__Wpredefined_identifier_outside_function=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wpredefined_identifier_outside_function=yes else tor_can_link__Wpredefined_identifier_outside_function=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wpredefined_identifier_outside_function" >&5 $as_echo "$tor_cv_cflags__Wpredefined_identifier_outside_function" >&6; } if test x$tor_cv_cflags__Wpredefined_identifier_outside_function = xyes; then CFLAGS="$CFLAGS -Wpredefined-identifier-outside-function" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wprotocol-property-synthesis-ambiguity" >&5 $as_echo_n "checking whether the compiler accepts -Wprotocol-property-synthesis-ambiguity... " >&6; } if ${tor_cv_cflags__Wprotocol_property_synthesis_ambiguity+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wprotocol-property-synthesis-ambiguity" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wprotocol_property_synthesis_ambiguity=yes else tor_cv_cflags__Wprotocol_property_synthesis_ambiguity=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wprotocol_property_synthesis_ambiguity=yes else tor_can_link__Wprotocol_property_synthesis_ambiguity=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wprotocol_property_synthesis_ambiguity" >&5 $as_echo "$tor_cv_cflags__Wprotocol_property_synthesis_ambiguity" >&6; } if test x$tor_cv_cflags__Wprotocol_property_synthesis_ambiguity = xyes; then CFLAGS="$CFLAGS -Wprotocol-property-synthesis-ambiguity" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wreadonly-iboutlet-property" >&5 $as_echo_n "checking whether the compiler accepts -Wreadonly-iboutlet-property... " >&6; } if ${tor_cv_cflags__Wreadonly_iboutlet_property+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wreadonly-iboutlet-property" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wreadonly_iboutlet_property=yes else tor_cv_cflags__Wreadonly_iboutlet_property=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wreadonly_iboutlet_property=yes else tor_can_link__Wreadonly_iboutlet_property=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wreadonly_iboutlet_property" >&5 $as_echo "$tor_cv_cflags__Wreadonly_iboutlet_property" >&6; } if test x$tor_cv_cflags__Wreadonly_iboutlet_property = xyes; then CFLAGS="$CFLAGS -Wreadonly-iboutlet-property" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wreadonly-setter-attrs" >&5 $as_echo_n "checking whether the compiler accepts -Wreadonly-setter-attrs... " >&6; } if ${tor_cv_cflags__Wreadonly_setter_attrs+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wreadonly-setter-attrs" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wreadonly_setter_attrs=yes else tor_cv_cflags__Wreadonly_setter_attrs=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wreadonly_setter_attrs=yes else tor_can_link__Wreadonly_setter_attrs=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wreadonly_setter_attrs" >&5 $as_echo "$tor_cv_cflags__Wreadonly_setter_attrs" >&6; } if test x$tor_cv_cflags__Wreadonly_setter_attrs = xyes; then CFLAGS="$CFLAGS -Wreadonly-setter-attrs" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wreceiver-expr" >&5 $as_echo_n "checking whether the compiler accepts -Wreceiver-expr... " >&6; } if ${tor_cv_cflags__Wreceiver_expr+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wreceiver-expr" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wreceiver_expr=yes else tor_cv_cflags__Wreceiver_expr=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wreceiver_expr=yes else tor_can_link__Wreceiver_expr=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wreceiver_expr" >&5 $as_echo "$tor_cv_cflags__Wreceiver_expr" >&6; } if test x$tor_cv_cflags__Wreceiver_expr = xyes; then CFLAGS="$CFLAGS -Wreceiver-expr" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wreceiver-forward-class" >&5 $as_echo_n "checking whether the compiler accepts -Wreceiver-forward-class... " >&6; } if ${tor_cv_cflags__Wreceiver_forward_class+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wreceiver-forward-class" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wreceiver_forward_class=yes else tor_cv_cflags__Wreceiver_forward_class=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wreceiver_forward_class=yes else tor_can_link__Wreceiver_forward_class=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wreceiver_forward_class" >&5 $as_echo "$tor_cv_cflags__Wreceiver_forward_class" >&6; } if test x$tor_cv_cflags__Wreceiver_forward_class = xyes; then CFLAGS="$CFLAGS -Wreceiver-forward-class" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wreceiver-is-weak" >&5 $as_echo_n "checking whether the compiler accepts -Wreceiver-is-weak... " >&6; } if ${tor_cv_cflags__Wreceiver_is_weak+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wreceiver-is-weak" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wreceiver_is_weak=yes else tor_cv_cflags__Wreceiver_is_weak=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wreceiver_is_weak=yes else tor_can_link__Wreceiver_is_weak=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wreceiver_is_weak" >&5 $as_echo "$tor_cv_cflags__Wreceiver_is_weak" >&6; } if test x$tor_cv_cflags__Wreceiver_is_weak = xyes; then CFLAGS="$CFLAGS -Wreceiver-is-weak" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wreinterpret-base-class" >&5 $as_echo_n "checking whether the compiler accepts -Wreinterpret-base-class... " >&6; } if ${tor_cv_cflags__Wreinterpret_base_class+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wreinterpret-base-class" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wreinterpret_base_class=yes else tor_cv_cflags__Wreinterpret_base_class=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wreinterpret_base_class=yes else tor_can_link__Wreinterpret_base_class=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wreinterpret_base_class" >&5 $as_echo "$tor_cv_cflags__Wreinterpret_base_class" >&6; } if test x$tor_cv_cflags__Wreinterpret_base_class = xyes; then CFLAGS="$CFLAGS -Wreinterpret-base-class" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wrequires-super-attribute" >&5 $as_echo_n "checking whether the compiler accepts -Wrequires-super-attribute... " >&6; } if ${tor_cv_cflags__Wrequires_super_attribute+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wrequires-super-attribute" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wrequires_super_attribute=yes else tor_cv_cflags__Wrequires_super_attribute=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wrequires_super_attribute=yes else tor_can_link__Wrequires_super_attribute=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wrequires_super_attribute" >&5 $as_echo "$tor_cv_cflags__Wrequires_super_attribute" >&6; } if test x$tor_cv_cflags__Wrequires_super_attribute = xyes; then CFLAGS="$CFLAGS -Wrequires-super-attribute" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wreserved-user-defined-literal" >&5 $as_echo_n "checking whether the compiler accepts -Wreserved-user-defined-literal... " >&6; } if ${tor_cv_cflags__Wreserved_user_defined_literal+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wreserved-user-defined-literal" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wreserved_user_defined_literal=yes else tor_cv_cflags__Wreserved_user_defined_literal=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wreserved_user_defined_literal=yes else tor_can_link__Wreserved_user_defined_literal=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wreserved_user_defined_literal" >&5 $as_echo "$tor_cv_cflags__Wreserved_user_defined_literal" >&6; } if test x$tor_cv_cflags__Wreserved_user_defined_literal = xyes; then CFLAGS="$CFLAGS -Wreserved-user-defined-literal" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wreturn-stack-address" >&5 $as_echo_n "checking whether the compiler accepts -Wreturn-stack-address... " >&6; } if ${tor_cv_cflags__Wreturn_stack_address+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wreturn-stack-address" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wreturn_stack_address=yes else tor_cv_cflags__Wreturn_stack_address=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wreturn_stack_address=yes else tor_can_link__Wreturn_stack_address=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wreturn_stack_address" >&5 $as_echo "$tor_cv_cflags__Wreturn_stack_address" >&6; } if test x$tor_cv_cflags__Wreturn_stack_address = xyes; then CFLAGS="$CFLAGS -Wreturn-stack-address" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wsection" >&5 $as_echo_n "checking whether the compiler accepts -Wsection... " >&6; } if ${tor_cv_cflags__Wsection+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wsection" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wsection=yes else tor_cv_cflags__Wsection=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wsection=yes else tor_can_link__Wsection=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wsection" >&5 $as_echo "$tor_cv_cflags__Wsection" >&6; } if test x$tor_cv_cflags__Wsection = xyes; then CFLAGS="$CFLAGS -Wsection" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wselector-type-mismatch" >&5 $as_echo_n "checking whether the compiler accepts -Wselector-type-mismatch... " >&6; } if ${tor_cv_cflags__Wselector_type_mismatch+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wselector-type-mismatch" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wselector_type_mismatch=yes else tor_cv_cflags__Wselector_type_mismatch=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wselector_type_mismatch=yes else tor_can_link__Wselector_type_mismatch=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wselector_type_mismatch" >&5 $as_echo "$tor_cv_cflags__Wselector_type_mismatch" >&6; } if test x$tor_cv_cflags__Wselector_type_mismatch = xyes; then CFLAGS="$CFLAGS -Wselector-type-mismatch" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wsentinel" >&5 $as_echo_n "checking whether the compiler accepts -Wsentinel... " >&6; } if ${tor_cv_cflags__Wsentinel+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wsentinel" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wsentinel=yes else tor_cv_cflags__Wsentinel=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wsentinel=yes else tor_can_link__Wsentinel=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wsentinel" >&5 $as_echo "$tor_cv_cflags__Wsentinel" >&6; } if test x$tor_cv_cflags__Wsentinel = xyes; then CFLAGS="$CFLAGS -Wsentinel" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wserialized-diagnostics" >&5 $as_echo_n "checking whether the compiler accepts -Wserialized-diagnostics... " >&6; } if ${tor_cv_cflags__Wserialized_diagnostics+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wserialized-diagnostics" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wserialized_diagnostics=yes else tor_cv_cflags__Wserialized_diagnostics=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wserialized_diagnostics=yes else tor_can_link__Wserialized_diagnostics=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wserialized_diagnostics" >&5 $as_echo "$tor_cv_cflags__Wserialized_diagnostics" >&6; } if test x$tor_cv_cflags__Wserialized_diagnostics = xyes; then CFLAGS="$CFLAGS -Wserialized-diagnostics" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wshadow" >&5 $as_echo_n "checking whether the compiler accepts -Wshadow... " >&6; } if ${tor_cv_cflags__Wshadow+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wshadow" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wshadow=yes else tor_cv_cflags__Wshadow=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wshadow=yes else tor_can_link__Wshadow=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wshadow" >&5 $as_echo "$tor_cv_cflags__Wshadow" >&6; } if test x$tor_cv_cflags__Wshadow = xyes; then CFLAGS="$CFLAGS -Wshadow" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wshift-count-negative" >&5 $as_echo_n "checking whether the compiler accepts -Wshift-count-negative... " >&6; } if ${tor_cv_cflags__Wshift_count_negative+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wshift-count-negative" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wshift_count_negative=yes else tor_cv_cflags__Wshift_count_negative=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wshift_count_negative=yes else tor_can_link__Wshift_count_negative=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wshift_count_negative" >&5 $as_echo "$tor_cv_cflags__Wshift_count_negative" >&6; } if test x$tor_cv_cflags__Wshift_count_negative = xyes; then CFLAGS="$CFLAGS -Wshift-count-negative" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wshift-count-overflow" >&5 $as_echo_n "checking whether the compiler accepts -Wshift-count-overflow... " >&6; } if ${tor_cv_cflags__Wshift_count_overflow+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wshift-count-overflow" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wshift_count_overflow=yes else tor_cv_cflags__Wshift_count_overflow=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wshift_count_overflow=yes else tor_can_link__Wshift_count_overflow=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wshift_count_overflow" >&5 $as_echo "$tor_cv_cflags__Wshift_count_overflow" >&6; } if test x$tor_cv_cflags__Wshift_count_overflow = xyes; then CFLAGS="$CFLAGS -Wshift-count-overflow" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wshift-negative-value" >&5 $as_echo_n "checking whether the compiler accepts -Wshift-negative-value... " >&6; } if ${tor_cv_cflags__Wshift_negative_value+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wshift-negative-value" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wshift_negative_value=yes else tor_cv_cflags__Wshift_negative_value=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wshift_negative_value=yes else tor_can_link__Wshift_negative_value=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wshift_negative_value" >&5 $as_echo "$tor_cv_cflags__Wshift_negative_value" >&6; } if test x$tor_cv_cflags__Wshift_negative_value = xyes; then CFLAGS="$CFLAGS -Wshift-negative-value" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wshift-overflow=2" >&5 $as_echo_n "checking whether the compiler accepts -Wshift-overflow=2... " >&6; } if ${tor_cv_cflags__Wshift_overflow_2+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wshift-overflow=2" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wshift_overflow_2=yes else tor_cv_cflags__Wshift_overflow_2=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wshift_overflow_2=yes else tor_can_link__Wshift_overflow_2=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wshift_overflow_2" >&5 $as_echo "$tor_cv_cflags__Wshift_overflow_2" >&6; } if test x$tor_cv_cflags__Wshift_overflow_2 = xyes; then CFLAGS="$CFLAGS -Wshift-overflow=2" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wshift-sign-overflow" >&5 $as_echo_n "checking whether the compiler accepts -Wshift-sign-overflow... " >&6; } if ${tor_cv_cflags__Wshift_sign_overflow+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wshift-sign-overflow" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wshift_sign_overflow=yes else tor_cv_cflags__Wshift_sign_overflow=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wshift_sign_overflow=yes else tor_can_link__Wshift_sign_overflow=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wshift_sign_overflow" >&5 $as_echo "$tor_cv_cflags__Wshift_sign_overflow" >&6; } if test x$tor_cv_cflags__Wshift_sign_overflow = xyes; then CFLAGS="$CFLAGS -Wshift-sign-overflow" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wshorten-64-to-32" >&5 $as_echo_n "checking whether the compiler accepts -Wshorten-64-to-32... " >&6; } if ${tor_cv_cflags__Wshorten_64_to_32+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wshorten-64-to-32" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wshorten_64_to_32=yes else tor_cv_cflags__Wshorten_64_to_32=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wshorten_64_to_32=yes else tor_can_link__Wshorten_64_to_32=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wshorten_64_to_32" >&5 $as_echo "$tor_cv_cflags__Wshorten_64_to_32" >&6; } if test x$tor_cv_cflags__Wshorten_64_to_32 = xyes; then CFLAGS="$CFLAGS -Wshorten-64-to-32" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wsizeof-array-argument" >&5 $as_echo_n "checking whether the compiler accepts -Wsizeof-array-argument... " >&6; } if ${tor_cv_cflags__Wsizeof_array_argument+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wsizeof-array-argument" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wsizeof_array_argument=yes else tor_cv_cflags__Wsizeof_array_argument=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wsizeof_array_argument=yes else tor_can_link__Wsizeof_array_argument=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wsizeof_array_argument" >&5 $as_echo "$tor_cv_cflags__Wsizeof_array_argument" >&6; } if test x$tor_cv_cflags__Wsizeof_array_argument = xyes; then CFLAGS="$CFLAGS -Wsizeof-array-argument" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wsource-uses-openmp" >&5 $as_echo_n "checking whether the compiler accepts -Wsource-uses-openmp... " >&6; } if ${tor_cv_cflags__Wsource_uses_openmp+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wsource-uses-openmp" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wsource_uses_openmp=yes else tor_cv_cflags__Wsource_uses_openmp=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wsource_uses_openmp=yes else tor_can_link__Wsource_uses_openmp=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wsource_uses_openmp" >&5 $as_echo "$tor_cv_cflags__Wsource_uses_openmp" >&6; } if test x$tor_cv_cflags__Wsource_uses_openmp = xyes; then CFLAGS="$CFLAGS -Wsource-uses-openmp" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wstatic-float-init" >&5 $as_echo_n "checking whether the compiler accepts -Wstatic-float-init... " >&6; } if ${tor_cv_cflags__Wstatic_float_init+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wstatic-float-init" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wstatic_float_init=yes else tor_cv_cflags__Wstatic_float_init=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wstatic_float_init=yes else tor_can_link__Wstatic_float_init=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wstatic_float_init" >&5 $as_echo "$tor_cv_cflags__Wstatic_float_init" >&6; } if test x$tor_cv_cflags__Wstatic_float_init = xyes; then CFLAGS="$CFLAGS -Wstatic-float-init" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wstatic-in-inline" >&5 $as_echo_n "checking whether the compiler accepts -Wstatic-in-inline... " >&6; } if ${tor_cv_cflags__Wstatic_in_inline+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wstatic-in-inline" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wstatic_in_inline=yes else tor_cv_cflags__Wstatic_in_inline=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wstatic_in_inline=yes else tor_can_link__Wstatic_in_inline=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wstatic_in_inline" >&5 $as_echo "$tor_cv_cflags__Wstatic_in_inline" >&6; } if test x$tor_cv_cflags__Wstatic_in_inline = xyes; then CFLAGS="$CFLAGS -Wstatic-in-inline" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wstatic-local-in-inline" >&5 $as_echo_n "checking whether the compiler accepts -Wstatic-local-in-inline... " >&6; } if ${tor_cv_cflags__Wstatic_local_in_inline+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wstatic-local-in-inline" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wstatic_local_in_inline=yes else tor_cv_cflags__Wstatic_local_in_inline=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wstatic_local_in_inline=yes else tor_can_link__Wstatic_local_in_inline=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wstatic_local_in_inline" >&5 $as_echo "$tor_cv_cflags__Wstatic_local_in_inline" >&6; } if test x$tor_cv_cflags__Wstatic_local_in_inline = xyes; then CFLAGS="$CFLAGS -Wstatic-local-in-inline" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wstrict-overflow=1" >&5 $as_echo_n "checking whether the compiler accepts -Wstrict-overflow=1... " >&6; } if ${tor_cv_cflags__Wstrict_overflow_1+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wstrict-overflow=1" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wstrict_overflow_1=yes else tor_cv_cflags__Wstrict_overflow_1=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wstrict_overflow_1=yes else tor_can_link__Wstrict_overflow_1=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wstrict_overflow_1" >&5 $as_echo "$tor_cv_cflags__Wstrict_overflow_1" >&6; } if test x$tor_cv_cflags__Wstrict_overflow_1 = xyes; then CFLAGS="$CFLAGS -Wstrict-overflow=1" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wstring-compare" >&5 $as_echo_n "checking whether the compiler accepts -Wstring-compare... " >&6; } if ${tor_cv_cflags__Wstring_compare+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wstring-compare" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wstring_compare=yes else tor_cv_cflags__Wstring_compare=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wstring_compare=yes else tor_can_link__Wstring_compare=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wstring_compare" >&5 $as_echo "$tor_cv_cflags__Wstring_compare" >&6; } if test x$tor_cv_cflags__Wstring_compare = xyes; then CFLAGS="$CFLAGS -Wstring-compare" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wstring-conversion" >&5 $as_echo_n "checking whether the compiler accepts -Wstring-conversion... " >&6; } if ${tor_cv_cflags__Wstring_conversion+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wstring-conversion" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wstring_conversion=yes else tor_cv_cflags__Wstring_conversion=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wstring_conversion=yes else tor_can_link__Wstring_conversion=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wstring_conversion" >&5 $as_echo "$tor_cv_cflags__Wstring_conversion" >&6; } if test x$tor_cv_cflags__Wstring_conversion = xyes; then CFLAGS="$CFLAGS -Wstring-conversion" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wstrlcpy-strlcat-size" >&5 $as_echo_n "checking whether the compiler accepts -Wstrlcpy-strlcat-size... " >&6; } if ${tor_cv_cflags__Wstrlcpy_strlcat_size+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wstrlcpy-strlcat-size" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wstrlcpy_strlcat_size=yes else tor_cv_cflags__Wstrlcpy_strlcat_size=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wstrlcpy_strlcat_size=yes else tor_can_link__Wstrlcpy_strlcat_size=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wstrlcpy_strlcat_size" >&5 $as_echo "$tor_cv_cflags__Wstrlcpy_strlcat_size" >&6; } if test x$tor_cv_cflags__Wstrlcpy_strlcat_size = xyes; then CFLAGS="$CFLAGS -Wstrlcpy-strlcat-size" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wstrncat-size" >&5 $as_echo_n "checking whether the compiler accepts -Wstrncat-size... " >&6; } if ${tor_cv_cflags__Wstrncat_size+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wstrncat-size" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wstrncat_size=yes else tor_cv_cflags__Wstrncat_size=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wstrncat_size=yes else tor_can_link__Wstrncat_size=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wstrncat_size" >&5 $as_echo "$tor_cv_cflags__Wstrncat_size" >&6; } if test x$tor_cv_cflags__Wstrncat_size = xyes; then CFLAGS="$CFLAGS -Wstrncat-size" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wsuggest-attribute=format" >&5 $as_echo_n "checking whether the compiler accepts -Wsuggest-attribute=format... " >&6; } if ${tor_cv_cflags__Wsuggest_attribute_format+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wsuggest-attribute=format" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wsuggest_attribute_format=yes else tor_cv_cflags__Wsuggest_attribute_format=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wsuggest_attribute_format=yes else tor_can_link__Wsuggest_attribute_format=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wsuggest_attribute_format" >&5 $as_echo "$tor_cv_cflags__Wsuggest_attribute_format" >&6; } if test x$tor_cv_cflags__Wsuggest_attribute_format = xyes; then CFLAGS="$CFLAGS -Wsuggest-attribute=format" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wsuggest-attribute=noreturn" >&5 $as_echo_n "checking whether the compiler accepts -Wsuggest-attribute=noreturn... " >&6; } if ${tor_cv_cflags__Wsuggest_attribute_noreturn+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wsuggest-attribute=noreturn" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wsuggest_attribute_noreturn=yes else tor_cv_cflags__Wsuggest_attribute_noreturn=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wsuggest_attribute_noreturn=yes else tor_can_link__Wsuggest_attribute_noreturn=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wsuggest_attribute_noreturn" >&5 $as_echo "$tor_cv_cflags__Wsuggest_attribute_noreturn" >&6; } if test x$tor_cv_cflags__Wsuggest_attribute_noreturn = xyes; then CFLAGS="$CFLAGS -Wsuggest-attribute=noreturn" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wsuper-class-method-mismatch" >&5 $as_echo_n "checking whether the compiler accepts -Wsuper-class-method-mismatch... " >&6; } if ${tor_cv_cflags__Wsuper_class_method_mismatch+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wsuper-class-method-mismatch" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wsuper_class_method_mismatch=yes else tor_cv_cflags__Wsuper_class_method_mismatch=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wsuper_class_method_mismatch=yes else tor_can_link__Wsuper_class_method_mismatch=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wsuper_class_method_mismatch" >&5 $as_echo "$tor_cv_cflags__Wsuper_class_method_mismatch" >&6; } if test x$tor_cv_cflags__Wsuper_class_method_mismatch = xyes; then CFLAGS="$CFLAGS -Wsuper-class-method-mismatch" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wswitch-bool" >&5 $as_echo_n "checking whether the compiler accepts -Wswitch-bool... " >&6; } if ${tor_cv_cflags__Wswitch_bool+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wswitch-bool" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wswitch_bool=yes else tor_cv_cflags__Wswitch_bool=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wswitch_bool=yes else tor_can_link__Wswitch_bool=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wswitch_bool" >&5 $as_echo "$tor_cv_cflags__Wswitch_bool" >&6; } if test x$tor_cv_cflags__Wswitch_bool = xyes; then CFLAGS="$CFLAGS -Wswitch-bool" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wsync-nand" >&5 $as_echo_n "checking whether the compiler accepts -Wsync-nand... " >&6; } if ${tor_cv_cflags__Wsync_nand+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wsync-nand" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wsync_nand=yes else tor_cv_cflags__Wsync_nand=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wsync_nand=yes else tor_can_link__Wsync_nand=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wsync_nand" >&5 $as_echo "$tor_cv_cflags__Wsync_nand" >&6; } if test x$tor_cv_cflags__Wsync_nand = xyes; then CFLAGS="$CFLAGS -Wsync-nand" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wtautological-constant-out-of-range-compare" >&5 $as_echo_n "checking whether the compiler accepts -Wtautological-constant-out-of-range-compare... " >&6; } if ${tor_cv_cflags__Wtautological_constant_out_of_range_compare+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wtautological-constant-out-of-range-compare" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wtautological_constant_out_of_range_compare=yes else tor_cv_cflags__Wtautological_constant_out_of_range_compare=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wtautological_constant_out_of_range_compare=yes else tor_can_link__Wtautological_constant_out_of_range_compare=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wtautological_constant_out_of_range_compare" >&5 $as_echo "$tor_cv_cflags__Wtautological_constant_out_of_range_compare" >&6; } if test x$tor_cv_cflags__Wtautological_constant_out_of_range_compare = xyes; then CFLAGS="$CFLAGS -Wtautological-constant-out-of-range-compare" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wtentative-definition-incomplete-type" >&5 $as_echo_n "checking whether the compiler accepts -Wtentative-definition-incomplete-type... " >&6; } if ${tor_cv_cflags__Wtentative_definition_incomplete_type+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wtentative-definition-incomplete-type" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wtentative_definition_incomplete_type=yes else tor_cv_cflags__Wtentative_definition_incomplete_type=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wtentative_definition_incomplete_type=yes else tor_can_link__Wtentative_definition_incomplete_type=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wtentative_definition_incomplete_type" >&5 $as_echo "$tor_cv_cflags__Wtentative_definition_incomplete_type" >&6; } if test x$tor_cv_cflags__Wtentative_definition_incomplete_type = xyes; then CFLAGS="$CFLAGS -Wtentative-definition-incomplete-type" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wtrampolines" >&5 $as_echo_n "checking whether the compiler accepts -Wtrampolines... " >&6; } if ${tor_cv_cflags__Wtrampolines+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wtrampolines" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wtrampolines=yes else tor_cv_cflags__Wtrampolines=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wtrampolines=yes else tor_can_link__Wtrampolines=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wtrampolines" >&5 $as_echo "$tor_cv_cflags__Wtrampolines" >&6; } if test x$tor_cv_cflags__Wtrampolines = xyes; then CFLAGS="$CFLAGS -Wtrampolines" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wtype-safety" >&5 $as_echo_n "checking whether the compiler accepts -Wtype-safety... " >&6; } if ${tor_cv_cflags__Wtype_safety+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wtype-safety" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wtype_safety=yes else tor_cv_cflags__Wtype_safety=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wtype_safety=yes else tor_can_link__Wtype_safety=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wtype_safety" >&5 $as_echo "$tor_cv_cflags__Wtype_safety" >&6; } if test x$tor_cv_cflags__Wtype_safety = xyes; then CFLAGS="$CFLAGS -Wtype-safety" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wtypedef-redefinition" >&5 $as_echo_n "checking whether the compiler accepts -Wtypedef-redefinition... " >&6; } if ${tor_cv_cflags__Wtypedef_redefinition+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wtypedef-redefinition" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wtypedef_redefinition=yes else tor_cv_cflags__Wtypedef_redefinition=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wtypedef_redefinition=yes else tor_can_link__Wtypedef_redefinition=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wtypedef_redefinition" >&5 $as_echo "$tor_cv_cflags__Wtypedef_redefinition" >&6; } if test x$tor_cv_cflags__Wtypedef_redefinition = xyes; then CFLAGS="$CFLAGS -Wtypedef-redefinition" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wtypename-missing" >&5 $as_echo_n "checking whether the compiler accepts -Wtypename-missing... " >&6; } if ${tor_cv_cflags__Wtypename_missing+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wtypename-missing" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wtypename_missing=yes else tor_cv_cflags__Wtypename_missing=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wtypename_missing=yes else tor_can_link__Wtypename_missing=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wtypename_missing" >&5 $as_echo "$tor_cv_cflags__Wtypename_missing" >&6; } if test x$tor_cv_cflags__Wtypename_missing = xyes; then CFLAGS="$CFLAGS -Wtypename-missing" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wundefined-inline" >&5 $as_echo_n "checking whether the compiler accepts -Wundefined-inline... " >&6; } if ${tor_cv_cflags__Wundefined_inline+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wundefined-inline" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wundefined_inline=yes else tor_cv_cflags__Wundefined_inline=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wundefined_inline=yes else tor_can_link__Wundefined_inline=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wundefined_inline" >&5 $as_echo "$tor_cv_cflags__Wundefined_inline" >&6; } if test x$tor_cv_cflags__Wundefined_inline = xyes; then CFLAGS="$CFLAGS -Wundefined-inline" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wundefined-internal" >&5 $as_echo_n "checking whether the compiler accepts -Wundefined-internal... " >&6; } if ${tor_cv_cflags__Wundefined_internal+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wundefined-internal" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wundefined_internal=yes else tor_cv_cflags__Wundefined_internal=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wundefined_internal=yes else tor_can_link__Wundefined_internal=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wundefined_internal" >&5 $as_echo "$tor_cv_cflags__Wundefined_internal" >&6; } if test x$tor_cv_cflags__Wundefined_internal = xyes; then CFLAGS="$CFLAGS -Wundefined-internal" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wundefined-reinterpret-cast" >&5 $as_echo_n "checking whether the compiler accepts -Wundefined-reinterpret-cast... " >&6; } if ${tor_cv_cflags__Wundefined_reinterpret_cast+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wundefined-reinterpret-cast" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wundefined_reinterpret_cast=yes else tor_cv_cflags__Wundefined_reinterpret_cast=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wundefined_reinterpret_cast=yes else tor_can_link__Wundefined_reinterpret_cast=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wundefined_reinterpret_cast" >&5 $as_echo "$tor_cv_cflags__Wundefined_reinterpret_cast" >&6; } if test x$tor_cv_cflags__Wundefined_reinterpret_cast = xyes; then CFLAGS="$CFLAGS -Wundefined-reinterpret-cast" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wunicode" >&5 $as_echo_n "checking whether the compiler accepts -Wunicode... " >&6; } if ${tor_cv_cflags__Wunicode+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wunicode" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wunicode=yes else tor_cv_cflags__Wunicode=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wunicode=yes else tor_can_link__Wunicode=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wunicode" >&5 $as_echo "$tor_cv_cflags__Wunicode" >&6; } if test x$tor_cv_cflags__Wunicode = xyes; then CFLAGS="$CFLAGS -Wunicode" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wunicode-whitespace" >&5 $as_echo_n "checking whether the compiler accepts -Wunicode-whitespace... " >&6; } if ${tor_cv_cflags__Wunicode_whitespace+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wunicode-whitespace" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wunicode_whitespace=yes else tor_cv_cflags__Wunicode_whitespace=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wunicode_whitespace=yes else tor_can_link__Wunicode_whitespace=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wunicode_whitespace" >&5 $as_echo "$tor_cv_cflags__Wunicode_whitespace" >&6; } if test x$tor_cv_cflags__Wunicode_whitespace = xyes; then CFLAGS="$CFLAGS -Wunicode-whitespace" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wunknown-warning-option" >&5 $as_echo_n "checking whether the compiler accepts -Wunknown-warning-option... " >&6; } if ${tor_cv_cflags__Wunknown_warning_option+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wunknown-warning-option" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wunknown_warning_option=yes else tor_cv_cflags__Wunknown_warning_option=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wunknown_warning_option=yes else tor_can_link__Wunknown_warning_option=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wunknown_warning_option" >&5 $as_echo "$tor_cv_cflags__Wunknown_warning_option" >&6; } if test x$tor_cv_cflags__Wunknown_warning_option = xyes; then CFLAGS="$CFLAGS -Wunknown-warning-option" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wunnamed-type-template-args" >&5 $as_echo_n "checking whether the compiler accepts -Wunnamed-type-template-args... " >&6; } if ${tor_cv_cflags__Wunnamed_type_template_args+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wunnamed-type-template-args" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wunnamed_type_template_args=yes else tor_cv_cflags__Wunnamed_type_template_args=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wunnamed_type_template_args=yes else tor_can_link__Wunnamed_type_template_args=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wunnamed_type_template_args" >&5 $as_echo "$tor_cv_cflags__Wunnamed_type_template_args" >&6; } if test x$tor_cv_cflags__Wunnamed_type_template_args = xyes; then CFLAGS="$CFLAGS -Wunnamed-type-template-args" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wunneeded-member-function" >&5 $as_echo_n "checking whether the compiler accepts -Wunneeded-member-function... " >&6; } if ${tor_cv_cflags__Wunneeded_member_function+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wunneeded-member-function" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wunneeded_member_function=yes else tor_cv_cflags__Wunneeded_member_function=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wunneeded_member_function=yes else tor_can_link__Wunneeded_member_function=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wunneeded_member_function" >&5 $as_echo "$tor_cv_cflags__Wunneeded_member_function" >&6; } if test x$tor_cv_cflags__Wunneeded_member_function = xyes; then CFLAGS="$CFLAGS -Wunneeded-member-function" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wunsequenced" >&5 $as_echo_n "checking whether the compiler accepts -Wunsequenced... " >&6; } if ${tor_cv_cflags__Wunsequenced+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wunsequenced" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wunsequenced=yes else tor_cv_cflags__Wunsequenced=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wunsequenced=yes else tor_can_link__Wunsequenced=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wunsequenced" >&5 $as_echo "$tor_cv_cflags__Wunsequenced" >&6; } if test x$tor_cv_cflags__Wunsequenced = xyes; then CFLAGS="$CFLAGS -Wunsequenced" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wunsupported-visibility" >&5 $as_echo_n "checking whether the compiler accepts -Wunsupported-visibility... " >&6; } if ${tor_cv_cflags__Wunsupported_visibility+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wunsupported-visibility" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wunsupported_visibility=yes else tor_cv_cflags__Wunsupported_visibility=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wunsupported_visibility=yes else tor_can_link__Wunsupported_visibility=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wunsupported_visibility" >&5 $as_echo "$tor_cv_cflags__Wunsupported_visibility" >&6; } if test x$tor_cv_cflags__Wunsupported_visibility = xyes; then CFLAGS="$CFLAGS -Wunsupported-visibility" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wunused-but-set-parameter" >&5 $as_echo_n "checking whether the compiler accepts -Wunused-but-set-parameter... " >&6; } if ${tor_cv_cflags__Wunused_but_set_parameter+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wunused-but-set-parameter" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wunused_but_set_parameter=yes else tor_cv_cflags__Wunused_but_set_parameter=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wunused_but_set_parameter=yes else tor_can_link__Wunused_but_set_parameter=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wunused_but_set_parameter" >&5 $as_echo "$tor_cv_cflags__Wunused_but_set_parameter" >&6; } if test x$tor_cv_cflags__Wunused_but_set_parameter = xyes; then CFLAGS="$CFLAGS -Wunused-but-set-parameter" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wunused-but-set-variable" >&5 $as_echo_n "checking whether the compiler accepts -Wunused-but-set-variable... " >&6; } if ${tor_cv_cflags__Wunused_but_set_variable+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wunused-but-set-variable" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wunused_but_set_variable=yes else tor_cv_cflags__Wunused_but_set_variable=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wunused_but_set_variable=yes else tor_can_link__Wunused_but_set_variable=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wunused_but_set_variable" >&5 $as_echo "$tor_cv_cflags__Wunused_but_set_variable" >&6; } if test x$tor_cv_cflags__Wunused_but_set_variable = xyes; then CFLAGS="$CFLAGS -Wunused-but-set-variable" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wunused-command-line-argument" >&5 $as_echo_n "checking whether the compiler accepts -Wunused-command-line-argument... " >&6; } if ${tor_cv_cflags__Wunused_command_line_argument+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wunused-command-line-argument" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wunused_command_line_argument=yes else tor_cv_cflags__Wunused_command_line_argument=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wunused_command_line_argument=yes else tor_can_link__Wunused_command_line_argument=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wunused_command_line_argument" >&5 $as_echo "$tor_cv_cflags__Wunused_command_line_argument" >&6; } if test x$tor_cv_cflags__Wunused_command_line_argument = xyes; then CFLAGS="$CFLAGS -Wunused-command-line-argument" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wunused-const-variable=2" >&5 $as_echo_n "checking whether the compiler accepts -Wunused-const-variable=2... " >&6; } if ${tor_cv_cflags__Wunused_const_variable_2+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wunused-const-variable=2" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wunused_const_variable_2=yes else tor_cv_cflags__Wunused_const_variable_2=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wunused_const_variable_2=yes else tor_can_link__Wunused_const_variable_2=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wunused_const_variable_2" >&5 $as_echo "$tor_cv_cflags__Wunused_const_variable_2" >&6; } if test x$tor_cv_cflags__Wunused_const_variable_2 = xyes; then CFLAGS="$CFLAGS -Wunused-const-variable=2" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wunused-exception-parameter" >&5 $as_echo_n "checking whether the compiler accepts -Wunused-exception-parameter... " >&6; } if ${tor_cv_cflags__Wunused_exception_parameter+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wunused-exception-parameter" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wunused_exception_parameter=yes else tor_cv_cflags__Wunused_exception_parameter=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wunused_exception_parameter=yes else tor_can_link__Wunused_exception_parameter=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wunused_exception_parameter" >&5 $as_echo "$tor_cv_cflags__Wunused_exception_parameter" >&6; } if test x$tor_cv_cflags__Wunused_exception_parameter = xyes; then CFLAGS="$CFLAGS -Wunused-exception-parameter" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wunused-local-typedefs" >&5 $as_echo_n "checking whether the compiler accepts -Wunused-local-typedefs... " >&6; } if ${tor_cv_cflags__Wunused_local_typedefs+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wunused-local-typedefs" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wunused_local_typedefs=yes else tor_cv_cflags__Wunused_local_typedefs=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wunused_local_typedefs=yes else tor_can_link__Wunused_local_typedefs=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wunused_local_typedefs" >&5 $as_echo "$tor_cv_cflags__Wunused_local_typedefs" >&6; } if test x$tor_cv_cflags__Wunused_local_typedefs = xyes; then CFLAGS="$CFLAGS -Wunused-local-typedefs" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wunused-member-function" >&5 $as_echo_n "checking whether the compiler accepts -Wunused-member-function... 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" >&6; } if ${tor_cv_cflags__Wunused_volatile_lvalue+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wunused-volatile-lvalue" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wunused_volatile_lvalue=yes else tor_cv_cflags__Wunused_volatile_lvalue=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wunused_volatile_lvalue=yes else tor_can_link__Wunused_volatile_lvalue=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wunused_volatile_lvalue" >&5 $as_echo "$tor_cv_cflags__Wunused_volatile_lvalue" >&6; } if test x$tor_cv_cflags__Wunused_volatile_lvalue = xyes; then CFLAGS="$CFLAGS -Wunused-volatile-lvalue" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wuser-defined-literals" >&5 $as_echo_n "checking whether the compiler accepts -Wuser-defined-literals... " >&6; } if ${tor_cv_cflags__Wuser_defined_literals+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wuser-defined-literals" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wuser_defined_literals=yes else tor_cv_cflags__Wuser_defined_literals=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wuser_defined_literals=yes else tor_can_link__Wuser_defined_literals=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wuser_defined_literals" >&5 $as_echo "$tor_cv_cflags__Wuser_defined_literals" >&6; } if test x$tor_cv_cflags__Wuser_defined_literals = xyes; then CFLAGS="$CFLAGS -Wuser-defined-literals" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wvariadic-macros" >&5 $as_echo_n "checking whether the compiler accepts -Wvariadic-macros... " >&6; } if ${tor_cv_cflags__Wvariadic_macros+:} false; then : $as_echo_n "(cached) " >&6 else tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror -Wvariadic-macros" cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_compile "$LINENO"; then : tor_cv_cflags__Wvariadic_macros=yes else tor_cv_cflags__Wvariadic_macros=no fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext if test x != x; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ int main () { return 0; ; return 0; } _ACEOF if ac_fn_c_try_link "$LINENO"; then : tor_can_link__Wvariadic_macros=yes else tor_can_link__Wvariadic_macros=no fi rm -f core conftest.err conftest.$ac_objext \ conftest$ac_exeext conftest.$ac_ext fi CFLAGS="$tor_saved_CFLAGS" fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tor_cv_cflags__Wvariadic_macros" >&5 $as_echo "$tor_cv_cflags__Wvariadic_macros" >&6; } if test x$tor_cv_cflags__Wvariadic_macros = xyes; then CFLAGS="$CFLAGS -Wvariadic-macros" else true fi { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wvector-conversion" >&5 $as_echo_n "checking whether the compiler accepts -Wvector-conversion... 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"write failure creating $CONFIG_STATUS" "$LINENO" 5 # configure is writing to config.log, and then calls config.status. # config.status does its own redirection, appending to config.log. # Unfortunately, on DOS this fails, as config.log is still kept open # by configure, so config.status won't be able to write to it; its # output is simply discarded. So we exec the FD to /dev/null, # effectively closing config.log, so it can be properly (re)opened and # appended to by config.status. When coming back to configure, we # need to make the FD available again. if test "$no_create" != yes; then ac_cs_success=: ac_config_status_args= test "$silent" = yes && ac_config_status_args="$ac_config_status_args --quiet" exec 5>/dev/null $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false exec 5>>config.log # Use ||, not &&, to avoid exiting from the if with $? = 1, which # would make configure fail if this is the last instruction. $ac_cs_success || as_fn_exit 1 fi if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5 $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;} fi tor-0.2.9.10/scripts/0000755000175000017500000000000013055542657011251 500000000000000tor-0.2.9.10/scripts/maint/0000755000175000017500000000000013055542660012353 500000000000000tor-0.2.9.10/scripts/maint/checkOptionDocs.pl.in0000644000175000017500000000325313002150440016276 00000000000000#!/usr/bin/perl -w use strict; my %options = (); my %descOptions = (); my %torrcSampleOptions = (); my %manPageOptions = (); # Load the canonical list as actually accepted by Tor. open(F, "@abs_top_builddir@/src/or/tor --list-torrc-options |") or die; while () { next if m!\[notice\] Tor v0\.!; if (m!^([A-Za-z0-9_]+)!) { $options{$1} = 1; } else { print "Unrecognized output> "; print; } } close F; # Load the contents of torrc.sample sub loadTorrc { my ($fname, $options) = @_; local *F; open(F, "$fname") or die; while () { next if (m!##+!); if (m!#([A-Za-z0-9_]+)!) { $options->{$1} = 1; } } close F; 0; } loadTorrc("@abs_top_srcdir@/src/config/torrc.sample.in", \%torrcSampleOptions); # Try to figure out what's in the man page. my $considerNextLine = 0; open(F, "@abs_top_srcdir@/doc/tor.1.txt") or die; while () { if (m!^(?:\[\[([A-za-z0-9_]+)\]\] *)?\*\*([A-Za-z0-9_]+)\*\*!) { $manPageOptions{$2} = 1; print "Missing an anchor: $2\n" unless (defined $1 or $2 eq 'tor'); } } close F; # Now, display differences: sub subtractHashes { my ($s, $a, $b) = @_; my @lst = (); for my $k (keys %$a) { push @lst, $k unless (exists $b->{$k}); } print "$s: ", join(' ', sort @lst), "\n\n"; 0; } # subtractHashes("No online docs", \%options, \%descOptions); # subtractHashes("Orphaned online docs", \%descOptions, \%options); subtractHashes("Orphaned in torrc.sample.in", \%torrcSampleOptions, \%options); subtractHashes("Not in man page", \%options, \%manPageOptions); subtractHashes("Orphaned in man page", \%manPageOptions, \%options); tor-0.2.9.10/scripts/maint/updateVersions.pl.in0000755000175000017500000000261213002150440016233 00000000000000#!/usr/bin/perl -w $CONFIGURE_IN = '@abs_top_srcdir@/configure.ac'; $ORCONFIG_H = '@abs_top_srcdir@/src/win32/orconfig.h'; $TOR_NSI = '@abs_top_srcdir@/contrib/win32build/tor-mingw.nsi.in'; $quiet = 1; sub demand { my $fn = shift; die "Missing file $fn" unless (-f $fn); } demand($CONFIGURE_IN); demand($ORCONFIG_H); demand($TOR_NSI); # extract version from configure.ac open(F, $CONFIGURE_IN) or die "$!"; $version = undef; while () { if (/AC_INIT\(\[tor\],\s*\[([^\]]*)\]\)/) { $version = $1; last; } } die "No version found" unless $version; print "Tor version is $version\n" unless $quiet; close F; sub correctversion { my ($fn, $defchar) = @_; undef $/; open(F, $fn) or die "$!"; my $s = ; close F; if ($s =~ /^$defchar(?:)define\s+VERSION\s+\"([^\"]+)\"/m) { $oldver = $1; if ($oldver ne $version) { print "Version mismatch in $fn: It thinks that the version is $oldver. I think it's $version. Fixing.\n"; $line = $defchar . "define VERSION \"$version\""; open(F, ">$fn.bak"); print F $s; close F; $s =~ s/^$defchar(?:)define\s+VERSION.*?$/$line/m; open(F, ">$fn"); print F $s; close F; } else { print "$fn has the correct version. Good.\n" unless $quiet; } } else { print "Didn't find a version line in $fn -- uh oh.\n"; } } correctversion($TOR_NSI, "!"); correctversion($ORCONFIG_H, "#"); tor-0.2.9.10/Makefile.am0000644000175000017500000002042313051624457011532 00000000000000# Copyright (c) 2001-2004, Roger Dingledine # Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson # Copyright (c) 2007-2015, The Tor Project, Inc. # See LICENSE for licensing information ACLOCAL_AMFLAGS = -I m4 noinst_LIBRARIES= EXTRA_DIST= noinst_HEADERS= bin_PROGRAMS= CLEANFILES= TESTS= noinst_PROGRAMS= DISTCLEANFILES= bin_SCRIPTS= AM_CPPFLAGS= AM_CFLAGS=@TOR_SYSTEMD_CFLAGS@ @CFLAGS_BUGTRAP@ SHELL=@SHELL@ if COVERAGE_ENABLED TESTING_TOR_BINARY=$(top_builddir)/src/or/tor-cov$(EXEEXT) else TESTING_TOR_BINARY=$(top_builddir)/src/or/tor$(EXEEXT) endif include src/include.am include doc/include.am include contrib/include.am EXTRA_DIST+= \ ChangeLog \ INSTALL \ LICENSE \ Makefile.nmake \ README \ ReleaseNotes ## This tells etags how to find mockable function definitions. AM_ETAGSFLAGS=--regex='{c}/MOCK_IMPL([^,]+,\W*\([a-zA-Z0-9_]+\)\W*,/\1/s' if COVERAGE_ENABLED TEST_CFLAGS=-fno-inline -fprofile-arcs -ftest-coverage if DISABLE_ASSERTS_IN_UNIT_TESTS TEST_CPPFLAGS=-DTOR_UNIT_TESTS -DTOR_COVERAGE -DDISABLE_ASSERTS_IN_UNIT_TESTS else TEST_CPPFLAGS=-DTOR_UNIT_TESTS -DTOR_COVERAGE endif TEST_NETWORK_FLAGS=--coverage --hs-multi-client 1 else TEST_CFLAGS= TEST_CPPFLAGS=-DTOR_UNIT_TESTS TEST_NETWORK_FLAGS=--hs-multi-client 1 endif TEST_NETWORK_ALL_LOG_DIR=$(top_builddir)/test_network_log TEST_NETWORK_ALL_DRIVER_FLAGS=--color-tests yes #install-data-local: # $(INSTALL) -m 755 -d $(LOCALSTATEDIR)/lib/tor # Allows to override rpmbuild with rpmbuild-md5 from fedora-packager so that # building for EL5 won't fail on https://bugzilla.redhat.com/show_bug.cgi?id=490613 RPMBUILD ?= rpmbuild # Use automake's dist-gzip target to build the tarball dist-rpm: dist-gzip TIMESTAMP=$$(date +"%Y-%m-%d_%H.%M.%S"); \ RPM_BUILD_DIR=$$(mktemp -d "/tmp/tor-rpm-build-$$TIMESTAMP-XXXX"); \ mkdir -p "$$RPM_BUILD_DIR"/{BUILD,RPMS,SOURCES/"tor-$(VERSION)",SPECS,SRPMS}; \ cp -fa "$(distdir).tar.gz" "$$RPM_BUILD_DIR"/SOURCES/; \ LIBS=-lrt $(RPMBUILD) -ba --define "_topdir $$RPM_BUILD_DIR" tor.spec; \ cp -fa "$$RPM_BUILD_DIR"/SRPMS/* .; \ cp -fa "$$RPM_BUILD_DIR"/RPMS/* .; \ rm -rf "$$RPM_BUILD_DIR"; \ echo "RPM build finished"; \ #end of dist-rpm doxygen: doxygen && cd doc/doxygen/latex && make test: all $(top_builddir)/src/test/test need-chutney-path: @if test ! -d "$$CHUTNEY_PATH"; then \ echo '$$CHUTNEY_PATH was not set.'; \ if test -d $(top_srcdir)/../chutney -a -x $(top_srcdir)/../chutney/chutney; then \ echo "Assuming test-network.sh will find" $(top_srcdir)/../chutney; \ else \ echo; \ echo "To run these tests, git clone https://git.torproject.org/chutney.git ; export CHUTNEY_PATH=\`pwd\`/chutney"; \ exit 1; \ fi \ fi # Note that test-network requires a copy of Chutney in $CHUTNEY_PATH. # Chutney can be cloned from https://git.torproject.org/chutney.git . test-network: need-chutney-path $(TESTING_TOR_BINARY) src/tools/tor-gencert $(top_srcdir)/src/test/test-network.sh $(TEST_NETWORK_FLAGS) # Run all available tests using automake's test-driver # only run IPv6 tests if we can ping6 ::1 (localhost) # some IPv6 tests will fail without an IPv6 DNS server (see #16971 and #17011) # only run mixed tests if we have a tor-stable binary # Try both the BSD and the Linux ping6 syntax, because they're incompatible test-network-all: need-chutney-path test-driver $(TESTING_TOR_BINARY) src/tools/tor-gencert mkdir -p $(TEST_NETWORK_ALL_LOG_DIR) @flavors="$(TEST_CHUTNEY_FLAVORS)"; \ if ping6 -q -c 1 -o ::1 >/dev/null 2>&1 || ping6 -q -c 1 -W 1 ::1 >/dev/null 2>&1; then \ echo "ping6 ::1 succeeded, running IPv6 flavors: $(TEST_CHUTNEY_FLAVORS_IPV6)."; \ flavors="$$flavors $(TEST_CHUTNEY_FLAVORS_IPV6)"; \ else \ echo "ping6 ::1 failed, skipping IPv6 flavors: $(TEST_CHUTNEY_FLAVORS_IPV6)."; \ skip_flavors="$$skip_flavors $(TEST_CHUTNEY_FLAVORS_IPV6)"; \ fi; \ if command -v tor-stable >/dev/null 2>&1; then \ echo "tor-stable found, running mixed flavors: $(TEST_CHUTNEY_FLAVORS_MIXED)."; \ flavors="$$flavors $(TEST_CHUTNEY_FLAVORS_MIXED)"; \ else \ echo "tor-stable not found, skipping mixed flavors: $(TEST_CHUTNEY_FLAVORS_MIXED)."; \ skip_flavors="$$skip_flavors $(TEST_CHUTNEY_FLAVORS_MIXED)"; \ fi; \ for f in $$skip_flavors; do \ echo "SKIP: $$f"; \ done; \ for f in $$flavors; do \ $(SHELL) $(top_srcdir)/test-driver --test-name $$f --log-file $(TEST_NETWORK_ALL_LOG_DIR)/$$f.log --trs-file $(TEST_NETWORK_ALL_LOG_DIR)/$$f.trs $(TEST_NETWORK_ALL_DRIVER_FLAGS) $(top_srcdir)/src/test/test-network.sh --flavor $$f $(TEST_NETWORK_FLAGS); \ done; \ echo "Log and result files are available in $(TEST_NETWORK_ALL_LOG_DIR)."; \ ! grep -q FAIL test_network_log/*.trs need-stem-path: @if test ! -d "$$STEM_SOURCE_DIR"; then \ echo '$$STEM_SOURCE_DIR was not set.'; echo; \ echo "To run these tests, git clone https://git.torproject.org/stem.git/ ; export STEM_SOURCE_DIR=\`pwd\`/stem"; \ exit 1; \ fi test-stem: need-stem-path $(TESTING_TOR_BINARY) @$(PYTHON) "$$STEM_SOURCE_DIR"/run_tests.py --tor "$(TESTING_TOR_BINARY)" --all --log notice --target RUN_ALL; test-stem-full: need-stem-path $(TESTING_TOR_BINARY) @$(PYTHON) "$$STEM_SOURCE_DIR"/run_tests.py --tor "$(TESTING_TOR_BINARY)" --all --log notice --target RUN_ALL,ONLINE -v; test-full: need-stem-path need-chutney-path check test-network test-stem test-full-online: need-stem-path need-chutney-path check test-network test-stem-full reset-gcov: rm -f $(top_builddir)/src/*/*.gcda $(top_builddir)/src/*/*/*.gcda HTML_COVER_DIR=$(top_builddir)/coverage_html coverage-html: all if COVERAGE_ENABLED test -e "`which lcov`" || (echo "lcov must be installed. See ." && false) test -d "$(HTML_COVER_DIR)" || $(MKDIR_P) "$(HTML_COVER_DIR)" lcov --rc lcov_branch_coverage=1 --directory $(top_builddir)/src --zerocounters $(MAKE) reset-gcov $(MAKE) check lcov --capture --rc lcov_branch_coverage=1 --no-external --directory $(top_builddir) --base-directory $(top_srcdir) --output-file "$(HTML_COVER_DIR)/lcov.tmp" lcov --remove "$(HTML_COVER_DIR)/lcov.tmp" --rc lcov_branch_coverage=1 'test/*' 'ext/tinytest*' '/usr/*' --output-file "$(HTML_COVER_DIR)/lcov.info" genhtml --branch-coverage -o "$(HTML_COVER_DIR)" "$(HTML_COVER_DIR)/lcov.info" else @printf "Not configured with --enable-coverage, run ./configure --enable-coverage\n" endif coverage-html-full: all test -e "`which lcov`" || (echo "lcov must be installed. See ." && false) test -d "$(HTML_COVER_DIR)" || mkdir -p "$(HTML_COVER_DIR)" lcov --rc lcov_branch_coverage=1 --directory ./src --zerocounters $(MAKE) reset-gcov $(MAKE) check $(MAKE) test-stem-full CHUTNEY_TOR=tor-cov CHUTNEY_TOR_GENCERT=tor-cov-gencert $(top_srcdir)/src/test/test-network.sh CHUTNEY_TOR=tor-cov CHUTNEY_TOR_GENCERT=tor-cov-gencert $(top_srcdir)/src/test/test-network.sh --flavor hs lcov --capture --rc lcov_branch_coverage=1 --no-external --directory . --output-file "$(HTML_COVER_DIR)/lcov.tmp" lcov --remove "$(HTML_COVER_DIR)/lcov.tmp" --rc lcov_branch_coverage=1 'test/*' 'ext/tinytest*' '/usr/*' --output-file "$(HTML_COVER_DIR)/lcov.info" genhtml --branch-coverage -o "$(HTML_COVER_DIR)" "$(HTML_COVER_DIR)/lcov.info" # Avoid strlcpy.c, strlcat.c, aes.c, OpenBSD_malloc_Linux.c, sha256.c, # tinytest*.[ch] check-spaces: $(top_srcdir)/scripts/maint/checkSpace.pl -C \ $(top_srcdir)/src/common/*.[ch] \ $(top_srcdir)/src/or/*.[ch] \ $(top_srcdir)/src/test/*.[ch] \ $(top_srcdir)/src/tools/*.[ch] check-docs: all $(PERL) $(top_builddir)/scripts/maint/checkOptionDocs.pl check-logs: $(top_srcdir)/scripts/maint/checkLogs.pl \ $(top_srcdir)/src/*/*.[ch] | sort -n .PHONY: check-changes check-changes: @if test -d "$(top_srcdir)/changes"; then \ $(PYTHON) $(top_srcdir)/scripts/maint/lintChanges.py $(top_srcdir)/changes/*; \ fi .PHONY: update-versions update-versions: $(PERL) $(top_builddir)/scripts/maint/updateVersions.pl version: @echo "Tor @VERSION@" @if test -d "$(top_srcdir)/.git" && test -x "`which git 2>&1;true`"; then \ echo -n "git: " ;\ (cd "$(top_srcdir)" && git rev-parse --short=16 HEAD); \ fi mostlyclean-local: rm -f $(top_builddir)/src/*/*.gc{da,no} $(top_builddir)/src/*/*/*.gc{da,no} rm -rf $(HTML_COVER_DIR) rm -rf $(top_builddir)/doc/doxygen rm -rf $(TEST_NETWORK_ALL_LOG_DIR) tor-0.2.9.10/test-driver0000755000175000017500000001104013002150511011644 00000000000000#! /bin/sh # test-driver - basic testsuite driver script. scriptversion=2013-07-13.22; # UTC # Copyright (C) 2011-2014 Free Software Foundation, Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2, or (at your option) # any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that program. # This file is maintained in Automake, please report # bugs to or send patches to # . # Make unconditional expansion of undefined variables an error. This # helps a lot in preventing typo-related bugs. set -u usage_error () { echo "$0: $*" >&2 print_usage >&2 exit 2 } print_usage () { cat <$log_file 2>&1 estatus=$? if test $enable_hard_errors = no && test $estatus -eq 99; then tweaked_estatus=1 else tweaked_estatus=$estatus fi case $tweaked_estatus:$expect_failure in 0:yes) col=$red res=XPASS recheck=yes gcopy=yes;; 0:*) col=$grn res=PASS recheck=no gcopy=no;; 77:*) col=$blu res=SKIP recheck=no gcopy=yes;; 99:*) col=$mgn res=ERROR recheck=yes gcopy=yes;; *:yes) col=$lgn res=XFAIL recheck=no gcopy=yes;; *:*) col=$red res=FAIL recheck=yes gcopy=yes;; esac # Report the test outcome and exit status in the logs, so that one can # know whether the test passed or failed simply by looking at the '.log' # file, without the need of also peaking into the corresponding '.trs' # file (automake bug#11814). echo "$res $test_name (exit status: $estatus)" >>$log_file # Report outcome to console. echo "${col}${res}${std}: $test_name" # Register the test result, and other relevant metadata. echo ":test-result: $res" > $trs_file echo ":global-test-result: $res" >> $trs_file echo ":recheck: $recheck" >> $trs_file echo ":copy-in-global-log: $gcopy" >> $trs_file # Local Variables: # mode: shell-script # sh-indentation: 2 # eval: (add-hook 'write-file-hooks 'time-stamp) # time-stamp-start: "scriptversion=" # time-stamp-format: "%:y-%02m-%02d.%02H" # time-stamp-time-zone: "UTC" # time-stamp-end: "; # UTC" # End: tor-0.2.9.10/acinclude.m40000644000175000017500000002150213051624457011666 00000000000000dnl Helper macros for Tor configure.ac dnl Copyright (c) 2001-2004, Roger Dingledine dnl Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson dnl Copyright (c) 2007-2008, Roger Dingledine, Nick Mathewson dnl Copyright (c) 2007-2015, The Tor Project, Inc. dnl See LICENSE for licensing information AC_DEFUN([TOR_EXTEND_CODEPATH], [ if test -d "$1/lib"; then LDFLAGS="-L$1/lib $LDFLAGS" else LDFLAGS="-L$1 $LDFLAGS" fi if test -d "$1/include"; then CPPFLAGS="-I$1/include $CPPFLAGS" else CPPFLAGS="-I$1 $CPPFLAGS" fi ]) AC_DEFUN([TOR_DEFINE_CODEPATH], [ if test x$1 = "x(system)"; then TOR_LDFLAGS_$2="" TOR_CPPFLAGS_$2="" else if test -d "$1/lib"; then TOR_LDFLAGS_$2="-L$1/lib" TOR_LIBDIR_$2="$1/lib" else TOR_LDFLAGS_$2="-L$1" TOR_LIBDIR_$2="$1" fi if test -d "$1/include"; then TOR_CPPFLAGS_$2="-I$1/include" else TOR_CPPFLAGS_$2="-I$1" fi fi AC_SUBST(TOR_CPPFLAGS_$2) AC_SUBST(TOR_LDFLAGS_$2) ]) dnl 1: flags dnl 2: try to link too if this is nonempty. dnl 3: what to do on success compiling dnl 4: what to do on failure compiling AC_DEFUN([TOR_TRY_COMPILE_WITH_CFLAGS], [ AS_VAR_PUSHDEF([VAR],[tor_cv_cflags_$1]) AC_CACHE_CHECK([whether the compiler accepts $1], VAR, [ tor_saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -pedantic -Werror $1" AC_TRY_COMPILE([], [return 0;], [AS_VAR_SET(VAR,yes)], [AS_VAR_SET(VAR,no)]) if test x$2 != x; then AS_VAR_PUSHDEF([can_link],[tor_can_link_$1]) AC_TRY_LINK([], [return 0;], [AS_VAR_SET(can_link,yes)], [AS_VAR_SET(can_link,no)]) AS_VAR_POPDEF([can_link]) fi CFLAGS="$tor_saved_CFLAGS" ]) if test x$VAR = xyes; then $3 else $4 fi AS_VAR_POPDEF([VAR]) ]) dnl 1:flags dnl 2:also try to link (yes: non-empty string) dnl will set yes or no in $tor_can_link_$1 (as modified by AS_VAR_PUSHDEF) AC_DEFUN([TOR_CHECK_CFLAGS], [ TOR_TRY_COMPILE_WITH_CFLAGS($1, $2, CFLAGS="$CFLAGS $1", true) ]) dnl 1:flags dnl 2:extra ldflags dnl 3:extra libraries AC_DEFUN([TOR_CHECK_LDFLAGS], [ AS_VAR_PUSHDEF([VAR],[tor_cv_ldflags_$1]) AC_CACHE_CHECK([whether the linker accepts $1], VAR, [ tor_saved_CFLAGS="$CFLAGS" tor_saved_LDFLAGS="$LDFLAGS" tor_saved_LIBS="$LIBS" CFLAGS="$CFLAGS -pedantic -Werror" LDFLAGS="$LDFLAGS $2 $1" LIBS="$LIBS $3" AC_RUN_IFELSE([AC_LANG_PROGRAM([#include ], [fputs("", stdout)])], [AS_VAR_SET(VAR,yes)], [AS_VAR_SET(VAR,no)], [AC_TRY_LINK([], [return 0;], [AS_VAR_SET(VAR,yes)], [AS_VAR_SET(VAR,no)])]) CFLAGS="$tor_saved_CFLAGS" LDFLAGS="$tor_saved_LDFLAGS" LIBS="$tor_saved_LIBS" ]) if test x$VAR = xyes; then LDFLAGS="$LDFLAGS $1" fi AS_VAR_POPDEF([VAR]) ]) dnl 1:libname AC_DEFUN([TOR_WARN_MISSING_LIB], [ h="" if test x$2 = xdevpkg; then h=" headers for" fi if test -f /etc/debian_version && test x"$tor_$1_$2_debian" != x; then AC_WARN([On Debian, you can install$h $1 using "apt-get install $tor_$1_$2_debian"]) if test x"$tor_$1_$2_debian" != x"$tor_$1_devpkg_debian"; then AC_WARN([ You will probably need $tor_$1_devpkg_debian too.]) fi fi if test -f /etc/fedora-release && test x"$tor_$1_$2_redhat" != x; then AC_WARN([On Fedora, you can install$h $1 using "dnf install $tor_$1_$2_redhat"]) if test x"$tor_$1_$2_redhat" != x"$tor_$1_devpkg_redhat"; then AC_WARN([ You will probably need to install $tor_$1_devpkg_redhat too.]) fi else if test -f /etc/redhat-release && test x"$tor_$1_$2_redhat" != x; then AC_WARN([On most Redhat-based systems, you can get$h $1 by installing the $tor_$1_$2_redhat RPM package]) if test x"$tor_$1_$2_redhat" != x"$tor_$1_devpkg_redhat"; then AC_WARN([ You will probably need to install $tor_$1_devpkg_redhat too.]) fi fi fi ]) dnl Look for a library, and its associated includes, and how to link dnl against it. dnl dnl TOR_SEARCH_LIBRARY(1:libname, 2:IGNORED, 3:linkargs, 4:headers, dnl 5:prototype, dnl 6:code, 7:IGNORED, 8:searchextra) dnl dnl Special variables: dnl ALT_{libname}_WITHVAL -- another possible value for --with-$1-dir. dnl Used to support renaming --with-ssl-dir to --with-openssl-dir dnl AC_DEFUN([TOR_SEARCH_LIBRARY], [ try$1dir="" AC_ARG_WITH($1-dir, AS_HELP_STRING(--with-$1-dir=PATH, [specify path to $1 installation]), [ if test x$withval != xno ; then try$1dir="$withval" fi ]) if test "x$try$1dir" = x && test "x$ALT_$1_WITHVAL" != x ; then try$1dir="$ALT_$1_WITHVAL" fi tor_saved_LIBS="$LIBS" tor_saved_LDFLAGS="$LDFLAGS" tor_saved_CPPFLAGS="$CPPFLAGS" AC_CACHE_CHECK([for $1 directory], tor_cv_library_$1_dir, [ tor_$1_dir_found=no tor_$1_any_linkable=no for tor_trydir in "$try$1dir" "(system)" "$prefix" /usr/local /usr/pkg $8; do LDFLAGS="$tor_saved_LDFLAGS" LIBS="$tor_saved_LIBS $3" CPPFLAGS="$tor_saved_CPPFLAGS" if test -z "$tor_trydir" ; then continue; fi # Skip the directory if it isn't there. if test ! -d "$tor_trydir" && test "$tor_trydir" != "(system)"; then continue; fi # If this isn't blank, try adding the directory (or appropriate # include/libs subdirectories) to the command line. if test "$tor_trydir" != "(system)"; then TOR_EXTEND_CODEPATH($tor_trydir) fi # Can we link against (but not necessarily run, or find the headers for) # the binary? AC_LINK_IFELSE([AC_LANG_PROGRAM([$5], [$6])], [linkable=yes], [linkable=no]) if test "$linkable" = yes; then tor_$1_any_linkable=yes # Okay, we can link against it. Can we find the headers? AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$4], [$6])], [buildable=yes], [buildable=no]) if test "$buildable" = yes; then tor_cv_library_$1_dir=$tor_trydir tor_$1_dir_found=yes break fi fi done if test "$tor_$1_dir_found" = no; then if test "$tor_$1_any_linkable" = no ; then AC_MSG_WARN([Could not find a linkable $1. If you have it installed somewhere unusual, you can specify an explicit path using --with-$1-dir]) TOR_WARN_MISSING_LIB($1, pkg) AC_MSG_ERROR([Missing libraries; unable to proceed.]) else AC_MSG_WARN([We found the libraries for $1, but we could not find the C header files. You may need to install a devel package.]) TOR_WARN_MISSING_LIB($1, devpkg) AC_MSG_ERROR([Missing headers; unable to proceed.]) fi fi LDFLAGS="$tor_saved_LDFLAGS" LIBS="$tor_saved_LIBS" CPPFLAGS="$tor_saved_CPPFLAGS" ]) dnl end cache check LIBS="$LIBS $3" if test "$tor_cv_library_$1_dir" != "(system)"; then TOR_EXTEND_CODEPATH($tor_cv_library_$1_dir) fi TOR_DEFINE_CODEPATH($tor_cv_library_$1_dir, $1) if test "$cross_compiling" != yes; then AC_CACHE_CHECK([whether we need extra options to link $1], tor_cv_library_$1_linker_option, [ orig_LDFLAGS="$LDFLAGS" runs=no linked_with=nothing if test -d "$tor_cv_library_$1_dir/lib"; then tor_trydir="$tor_cv_library_$1_dir/lib" else tor_trydir="$tor_cv_library_$1_dir" fi for tor_tryextra in "(none)" "-Wl,-R$tor_trydir" "-R$tor_trydir" \ "-Wl,-rpath,$tor_trydir" ; do if test "$tor_tryextra" = "(none)"; then LDFLAGS="$orig_LDFLAGS" else LDFLAGS="$tor_tryextra $orig_LDFLAGS" fi AC_RUN_IFELSE([AC_LANG_PROGRAM([$5], [$6])], [runnable=yes], [runnable=no]) if test "$runnable" = yes; then tor_cv_library_$1_linker_option=$tor_tryextra break fi done if test "$runnable" = no; then AC_MSG_ERROR([Found linkable $1 in $tor_cv_library_$1_dir, but it does not seem to run, even with -R. Maybe specify another using --with-$1-dir}]) fi LDFLAGS="$orig_LDFLAGS" ]) dnl end cache check check for extra options. if test "$tor_cv_library_$1_linker_option" != "(none)" ; then TOR_LDFLAGS_$1="$TOR_LDFLAGS_$1 $tor_cv_library_$1_linker_option" fi fi # cross-compile LIBS="$tor_saved_LIBS" LDFLAGS="$tor_saved_LDFLAGS" CPPFLAGS="$tor_saved_CPPFLAGS" ]) dnl end defun dnl Check whether the prototype for a function is present or missing. dnl Apple has a nasty habit of putting functions in their libraries (so that dnl AC_CHECK_FUNCS passes) but not actually declaring them in the headers. dnl dnl TOR_CHECK_PROTYPE(1:functionname, 2:macroname, 2: includes) AC_DEFUN([TOR_CHECK_PROTOTYPE], [ AC_CACHE_CHECK([for declaration of $1], tor_cv_$1_declared, [ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$3],[void *ptr= $1 ;])], tor_cv_$1_declared=yes,tor_cv_$1_declared=no)]) if test x$tor_cv_$1_declared != xno ; then AC_DEFINE($2, 1, [Defined if the prototype for $1 seems to be present.]) fi ]) tor-0.2.9.10/src/0000755000175000017500000000000013055542660010343 500000000000000tor-0.2.9.10/src/trunnel/0000755000175000017500000000000013055542661012033 500000000000000tor-0.2.9.10/src/trunnel/ed25519_cert.h0000644000175000017500000003165613051624457014152 00000000000000/* ed25519_cert.h -- generated by by Trunnel v1.4.6. * https://gitweb.torproject.org/trunnel.git * You probably shouldn't edit this file. */ #ifndef TRUNNEL_ED25519_CERT_H #define TRUNNEL_ED25519_CERT_H #include #include "trunnel.h" #define CERTEXT_SIGNED_WITH_KEY 4 #define CERTEXT_FLAG_AFFECTS_VALIDATION 1 #if !defined(TRUNNEL_OPAQUE) && !defined(TRUNNEL_OPAQUE_ED25519_CERT_EXTENSION) struct ed25519_cert_extension_st { uint16_t ext_length; uint8_t ext_type; uint8_t ext_flags; uint8_t un_signing_key[32]; TRUNNEL_DYNARRAY_HEAD(, uint8_t) un_unparsed; uint8_t trunnel_error_code_; }; #endif typedef struct ed25519_cert_extension_st ed25519_cert_extension_t; #if !defined(TRUNNEL_OPAQUE) && !defined(TRUNNEL_OPAQUE_ED25519_CERT) struct ed25519_cert_st { uint8_t version; uint8_t cert_type; uint32_t exp_field; uint8_t cert_key_type; uint8_t certified_key[32]; uint8_t n_extensions; TRUNNEL_DYNARRAY_HEAD(, struct ed25519_cert_extension_st *) ext; uint8_t signature[64]; uint8_t trunnel_error_code_; }; #endif typedef struct ed25519_cert_st ed25519_cert_t; /** Return a newly allocated ed25519_cert_extension with all elements * set to zero. */ ed25519_cert_extension_t *ed25519_cert_extension_new(void); /** Release all storage held by the ed25519_cert_extension in * 'victim'. (Do nothing if 'victim' is NULL.) */ void ed25519_cert_extension_free(ed25519_cert_extension_t *victim); /** Try to parse a ed25519_cert_extension from the buffer in 'input', * using up to 'len_in' bytes from the input buffer. On success, * return the number of bytes consumed and set *output to the newly * allocated ed25519_cert_extension_t. On failure, return -2 if the * input appears truncated, and -1 if the input is otherwise invalid. */ ssize_t ed25519_cert_extension_parse(ed25519_cert_extension_t **output, const uint8_t *input, const size_t len_in); /** Return the number of bytes we expect to need to encode the * ed25519_cert_extension in 'obj'. On failure, return a negative * value. Note that this value may be an overestimate, and can even be * an underestimate for certain unencodeable objects. */ ssize_t ed25519_cert_extension_encoded_len(const ed25519_cert_extension_t *obj); /** Try to encode the ed25519_cert_extension from 'input' into the * buffer at 'output', using up to 'avail' bytes of the output buffer. * On success, return the number of bytes used. On failure, return -2 * if the buffer was not long enough, and -1 if the input was invalid. */ ssize_t ed25519_cert_extension_encode(uint8_t *output, size_t avail, const ed25519_cert_extension_t *input); /** Check whether the internal state of the ed25519_cert_extension in * 'obj' is consistent. Return NULL if it is, and a short message if * it is not. */ const char *ed25519_cert_extension_check(const ed25519_cert_extension_t *obj); /** Clear any errors that were set on the object 'obj' by its setter * functions. Return true iff errors were cleared. */ int ed25519_cert_extension_clear_errors(ed25519_cert_extension_t *obj); /** Return the value of the ext_length field of the * ed25519_cert_extension_t in 'inp' */ uint16_t ed25519_cert_extension_get_ext_length(ed25519_cert_extension_t *inp); /** Set the value of the ext_length field of the * ed25519_cert_extension_t in 'inp' to 'val'. Return 0 on success; * return -1 and set the error code on 'inp' on failure. */ int ed25519_cert_extension_set_ext_length(ed25519_cert_extension_t *inp, uint16_t val); /** Return the value of the ext_type field of the * ed25519_cert_extension_t in 'inp' */ uint8_t ed25519_cert_extension_get_ext_type(ed25519_cert_extension_t *inp); /** Set the value of the ext_type field of the * ed25519_cert_extension_t in 'inp' to 'val'. Return 0 on success; * return -1 and set the error code on 'inp' on failure. */ int ed25519_cert_extension_set_ext_type(ed25519_cert_extension_t *inp, uint8_t val); /** Return the value of the ext_flags field of the * ed25519_cert_extension_t in 'inp' */ uint8_t ed25519_cert_extension_get_ext_flags(ed25519_cert_extension_t *inp); /** Set the value of the ext_flags field of the * ed25519_cert_extension_t in 'inp' to 'val'. Return 0 on success; * return -1 and set the error code on 'inp' on failure. */ int ed25519_cert_extension_set_ext_flags(ed25519_cert_extension_t *inp, uint8_t val); /** Return the (constant) length of the array holding the * un_signing_key field of the ed25519_cert_extension_t in 'inp'. */ size_t ed25519_cert_extension_getlen_un_signing_key(const ed25519_cert_extension_t *inp); /** Return the element at position 'idx' of the fixed array field * un_signing_key of the ed25519_cert_extension_t in 'inp'. */ uint8_t ed25519_cert_extension_get_un_signing_key(const ed25519_cert_extension_t *inp, size_t idx); /** Change the element at position 'idx' of the fixed array field * un_signing_key of the ed25519_cert_extension_t in 'inp', so that it * will hold the value 'elt'. */ int ed25519_cert_extension_set_un_signing_key(ed25519_cert_extension_t *inp, size_t idx, uint8_t elt); /** Return a pointer to the 32-element array field un_signing_key of * 'inp'. */ uint8_t * ed25519_cert_extension_getarray_un_signing_key(ed25519_cert_extension_t *inp); /** Return the length of the dynamic array holding the un_unparsed * field of the ed25519_cert_extension_t in 'inp'. */ size_t ed25519_cert_extension_getlen_un_unparsed(const ed25519_cert_extension_t *inp); /** Return the element at position 'idx' of the dynamic array field * un_unparsed of the ed25519_cert_extension_t in 'inp'. */ uint8_t ed25519_cert_extension_get_un_unparsed(ed25519_cert_extension_t *inp, size_t idx); /** Change the element at position 'idx' of the dynamic array field * un_unparsed of the ed25519_cert_extension_t in 'inp', so that it * will hold the value 'elt'. */ int ed25519_cert_extension_set_un_unparsed(ed25519_cert_extension_t *inp, size_t idx, uint8_t elt); /** Append a new element 'elt' to the dynamic array field un_unparsed * of the ed25519_cert_extension_t in 'inp'. */ int ed25519_cert_extension_add_un_unparsed(ed25519_cert_extension_t *inp, uint8_t elt); /** Return a pointer to the variable-length array field un_unparsed of * 'inp'. */ uint8_t * ed25519_cert_extension_getarray_un_unparsed(ed25519_cert_extension_t *inp); /** Change the length of the variable-length array field un_unparsed * of 'inp' to 'newlen'.Fill extra elements with 0. Return 0 on * success; return -1 and set the error code on 'inp' on failure. */ int ed25519_cert_extension_setlen_un_unparsed(ed25519_cert_extension_t *inp, size_t newlen); /** Return a newly allocated ed25519_cert with all elements set to * zero. */ ed25519_cert_t *ed25519_cert_new(void); /** Release all storage held by the ed25519_cert in 'victim'. (Do * nothing if 'victim' is NULL.) */ void ed25519_cert_free(ed25519_cert_t *victim); /** Try to parse a ed25519_cert from the buffer in 'input', using up * to 'len_in' bytes from the input buffer. On success, return the * number of bytes consumed and set *output to the newly allocated * ed25519_cert_t. On failure, return -2 if the input appears * truncated, and -1 if the input is otherwise invalid. */ ssize_t ed25519_cert_parse(ed25519_cert_t **output, const uint8_t *input, const size_t len_in); /** Return the number of bytes we expect to need to encode the * ed25519_cert in 'obj'. On failure, return a negative value. Note * that this value may be an overestimate, and can even be an * underestimate for certain unencodeable objects. */ ssize_t ed25519_cert_encoded_len(const ed25519_cert_t *obj); /** Try to encode the ed25519_cert from 'input' into the buffer at * 'output', using up to 'avail' bytes of the output buffer. On * success, return the number of bytes used. On failure, return -2 if * the buffer was not long enough, and -1 if the input was invalid. */ ssize_t ed25519_cert_encode(uint8_t *output, size_t avail, const ed25519_cert_t *input); /** Check whether the internal state of the ed25519_cert in 'obj' is * consistent. Return NULL if it is, and a short message if it is not. */ const char *ed25519_cert_check(const ed25519_cert_t *obj); /** Clear any errors that were set on the object 'obj' by its setter * functions. Return true iff errors were cleared. */ int ed25519_cert_clear_errors(ed25519_cert_t *obj); /** Return the value of the version field of the ed25519_cert_t in * 'inp' */ uint8_t ed25519_cert_get_version(ed25519_cert_t *inp); /** Set the value of the version field of the ed25519_cert_t in 'inp' * to 'val'. Return 0 on success; return -1 and set the error code on * 'inp' on failure. */ int ed25519_cert_set_version(ed25519_cert_t *inp, uint8_t val); /** Return the value of the cert_type field of the ed25519_cert_t in * 'inp' */ uint8_t ed25519_cert_get_cert_type(ed25519_cert_t *inp); /** Set the value of the cert_type field of the ed25519_cert_t in * 'inp' to 'val'. Return 0 on success; return -1 and set the error * code on 'inp' on failure. */ int ed25519_cert_set_cert_type(ed25519_cert_t *inp, uint8_t val); /** Return the value of the exp_field field of the ed25519_cert_t in * 'inp' */ uint32_t ed25519_cert_get_exp_field(ed25519_cert_t *inp); /** Set the value of the exp_field field of the ed25519_cert_t in * 'inp' to 'val'. Return 0 on success; return -1 and set the error * code on 'inp' on failure. */ int ed25519_cert_set_exp_field(ed25519_cert_t *inp, uint32_t val); /** Return the value of the cert_key_type field of the ed25519_cert_t * in 'inp' */ uint8_t ed25519_cert_get_cert_key_type(ed25519_cert_t *inp); /** Set the value of the cert_key_type field of the ed25519_cert_t in * 'inp' to 'val'. Return 0 on success; return -1 and set the error * code on 'inp' on failure. */ int ed25519_cert_set_cert_key_type(ed25519_cert_t *inp, uint8_t val); /** Return the (constant) length of the array holding the * certified_key field of the ed25519_cert_t in 'inp'. */ size_t ed25519_cert_getlen_certified_key(const ed25519_cert_t *inp); /** Return the element at position 'idx' of the fixed array field * certified_key of the ed25519_cert_t in 'inp'. */ uint8_t ed25519_cert_get_certified_key(const ed25519_cert_t *inp, size_t idx); /** Change the element at position 'idx' of the fixed array field * certified_key of the ed25519_cert_t in 'inp', so that it will hold * the value 'elt'. */ int ed25519_cert_set_certified_key(ed25519_cert_t *inp, size_t idx, uint8_t elt); /** Return a pointer to the 32-element array field certified_key of * 'inp'. */ uint8_t * ed25519_cert_getarray_certified_key(ed25519_cert_t *inp); /** Return the value of the n_extensions field of the ed25519_cert_t * in 'inp' */ uint8_t ed25519_cert_get_n_extensions(ed25519_cert_t *inp); /** Set the value of the n_extensions field of the ed25519_cert_t in * 'inp' to 'val'. Return 0 on success; return -1 and set the error * code on 'inp' on failure. */ int ed25519_cert_set_n_extensions(ed25519_cert_t *inp, uint8_t val); /** Return the length of the dynamic array holding the ext field of * the ed25519_cert_t in 'inp'. */ size_t ed25519_cert_getlen_ext(const ed25519_cert_t *inp); /** Return the element at position 'idx' of the dynamic array field * ext of the ed25519_cert_t in 'inp'. */ struct ed25519_cert_extension_st * ed25519_cert_get_ext(ed25519_cert_t *inp, size_t idx); /** Change the element at position 'idx' of the dynamic array field * ext of the ed25519_cert_t in 'inp', so that it will hold the value * 'elt'. Free the previous value, if any. */ int ed25519_cert_set_ext(ed25519_cert_t *inp, size_t idx, struct ed25519_cert_extension_st * elt); /** As ed25519_cert_set_ext, but does not free the previous value. */ int ed25519_cert_set0_ext(ed25519_cert_t *inp, size_t idx, struct ed25519_cert_extension_st * elt); /** Append a new element 'elt' to the dynamic array field ext of the * ed25519_cert_t in 'inp'. */ int ed25519_cert_add_ext(ed25519_cert_t *inp, struct ed25519_cert_extension_st * elt); /** Return a pointer to the variable-length array field ext of 'inp'. */ struct ed25519_cert_extension_st * * ed25519_cert_getarray_ext(ed25519_cert_t *inp); /** Change the length of the variable-length array field ext of 'inp' * to 'newlen'.Fill extra elements with NULL; free removed elements. * Return 0 on success; return -1 and set the error code on 'inp' on * failure. */ int ed25519_cert_setlen_ext(ed25519_cert_t *inp, size_t newlen); /** Return the (constant) length of the array holding the signature * field of the ed25519_cert_t in 'inp'. */ size_t ed25519_cert_getlen_signature(const ed25519_cert_t *inp); /** Return the element at position 'idx' of the fixed array field * signature of the ed25519_cert_t in 'inp'. */ uint8_t ed25519_cert_get_signature(const ed25519_cert_t *inp, size_t idx); /** Change the element at position 'idx' of the fixed array field * signature of the ed25519_cert_t in 'inp', so that it will hold the * value 'elt'. */ int ed25519_cert_set_signature(ed25519_cert_t *inp, size_t idx, uint8_t elt); /** Return a pointer to the 64-element array field signature of 'inp'. */ uint8_t * ed25519_cert_getarray_signature(ed25519_cert_t *inp); #endif tor-0.2.9.10/src/trunnel/ed25519_cert.c0000644000175000017500000005132713051624457014142 00000000000000/* ed25519_cert.c -- generated by Trunnel v1.4.6. * https://gitweb.torproject.org/trunnel.git * You probably shouldn't edit this file. */ #include #include "trunnel-impl.h" #include "ed25519_cert.h" #define TRUNNEL_SET_ERROR_CODE(obj) \ do { \ (obj)->trunnel_error_code_ = 1; \ } while (0) #if defined(__COVERITY__) || defined(__clang_analyzer__) /* If we're runnning a static analysis tool, we don't want it to complain * that some of our remaining-bytes checks are dead-code. */ int edcert_deadcode_dummy__ = 0; #define OR_DEADCODE_DUMMY || edcert_deadcode_dummy__ #else #define OR_DEADCODE_DUMMY #endif #define CHECK_REMAINING(nbytes, label) \ do { \ if (remaining < (nbytes) OR_DEADCODE_DUMMY) { \ goto label; \ } \ } while (0) ed25519_cert_extension_t * ed25519_cert_extension_new(void) { ed25519_cert_extension_t *val = trunnel_calloc(1, sizeof(ed25519_cert_extension_t)); if (NULL == val) return NULL; return val; } /** Release all storage held inside 'obj', but do not free 'obj'. */ static void ed25519_cert_extension_clear(ed25519_cert_extension_t *obj) { (void) obj; TRUNNEL_DYNARRAY_WIPE(&obj->un_unparsed); TRUNNEL_DYNARRAY_CLEAR(&obj->un_unparsed); } void ed25519_cert_extension_free(ed25519_cert_extension_t *obj) { if (obj == NULL) return; ed25519_cert_extension_clear(obj); trunnel_memwipe(obj, sizeof(ed25519_cert_extension_t)); trunnel_free_(obj); } uint16_t ed25519_cert_extension_get_ext_length(ed25519_cert_extension_t *inp) { return inp->ext_length; } int ed25519_cert_extension_set_ext_length(ed25519_cert_extension_t *inp, uint16_t val) { inp->ext_length = val; return 0; } uint8_t ed25519_cert_extension_get_ext_type(ed25519_cert_extension_t *inp) { return inp->ext_type; } int ed25519_cert_extension_set_ext_type(ed25519_cert_extension_t *inp, uint8_t val) { inp->ext_type = val; return 0; } uint8_t ed25519_cert_extension_get_ext_flags(ed25519_cert_extension_t *inp) { return inp->ext_flags; } int ed25519_cert_extension_set_ext_flags(ed25519_cert_extension_t *inp, uint8_t val) { inp->ext_flags = val; return 0; } size_t ed25519_cert_extension_getlen_un_signing_key(const ed25519_cert_extension_t *inp) { (void)inp; return 32; } uint8_t ed25519_cert_extension_get_un_signing_key(const ed25519_cert_extension_t *inp, size_t idx) { trunnel_assert(idx < 32); return inp->un_signing_key[idx]; } int ed25519_cert_extension_set_un_signing_key(ed25519_cert_extension_t *inp, size_t idx, uint8_t elt) { trunnel_assert(idx < 32); inp->un_signing_key[idx] = elt; return 0; } uint8_t * ed25519_cert_extension_getarray_un_signing_key(ed25519_cert_extension_t *inp) { return inp->un_signing_key; } size_t ed25519_cert_extension_getlen_un_unparsed(const ed25519_cert_extension_t *inp) { return TRUNNEL_DYNARRAY_LEN(&inp->un_unparsed); } uint8_t ed25519_cert_extension_get_un_unparsed(ed25519_cert_extension_t *inp, size_t idx) { return TRUNNEL_DYNARRAY_GET(&inp->un_unparsed, idx); } int ed25519_cert_extension_set_un_unparsed(ed25519_cert_extension_t *inp, size_t idx, uint8_t elt) { TRUNNEL_DYNARRAY_SET(&inp->un_unparsed, idx, elt); return 0; } int ed25519_cert_extension_add_un_unparsed(ed25519_cert_extension_t *inp, uint8_t elt) { TRUNNEL_DYNARRAY_ADD(uint8_t, &inp->un_unparsed, elt, {}); return 0; trunnel_alloc_failed: TRUNNEL_SET_ERROR_CODE(inp); return -1; } uint8_t * ed25519_cert_extension_getarray_un_unparsed(ed25519_cert_extension_t *inp) { return inp->un_unparsed.elts_; } int ed25519_cert_extension_setlen_un_unparsed(ed25519_cert_extension_t *inp, size_t newlen) { uint8_t *newptr; newptr = trunnel_dynarray_setlen(&inp->un_unparsed.allocated_, &inp->un_unparsed.n_, inp->un_unparsed.elts_, newlen, sizeof(inp->un_unparsed.elts_[0]), (trunnel_free_fn_t) NULL, &inp->trunnel_error_code_); if (newlen != 0 && newptr == NULL) goto trunnel_alloc_failed; inp->un_unparsed.elts_ = newptr; return 0; trunnel_alloc_failed: TRUNNEL_SET_ERROR_CODE(inp); return -1; } const char * ed25519_cert_extension_check(const ed25519_cert_extension_t *obj) { if (obj == NULL) return "Object was NULL"; if (obj->trunnel_error_code_) return "A set function failed on this object"; switch (obj->ext_type) { case CERTEXT_SIGNED_WITH_KEY: break; default: break; } return NULL; } ssize_t ed25519_cert_extension_encoded_len(const ed25519_cert_extension_t *obj) { ssize_t result = 0; if (NULL != ed25519_cert_extension_check(obj)) return -1; /* Length of u16 ext_length */ result += 2; /* Length of u8 ext_type */ result += 1; /* Length of u8 ext_flags */ result += 1; switch (obj->ext_type) { case CERTEXT_SIGNED_WITH_KEY: /* Length of u8 un_signing_key[32] */ result += 32; break; default: /* Length of u8 un_unparsed[] */ result += TRUNNEL_DYNARRAY_LEN(&obj->un_unparsed); break; } return result; } int ed25519_cert_extension_clear_errors(ed25519_cert_extension_t *obj) { int r = obj->trunnel_error_code_; obj->trunnel_error_code_ = 0; return r; } ssize_t ed25519_cert_extension_encode(uint8_t *output, const size_t avail, const ed25519_cert_extension_t *obj) { ssize_t result = 0; size_t written = 0; uint8_t *ptr = output; const char *msg; #ifdef TRUNNEL_CHECK_ENCODED_LEN const ssize_t encoded_len = ed25519_cert_extension_encoded_len(obj); #endif uint8_t *backptr_ext_length = NULL; if (NULL != (msg = ed25519_cert_extension_check(obj))) goto check_failed; #ifdef TRUNNEL_CHECK_ENCODED_LEN trunnel_assert(encoded_len >= 0); #endif /* Encode u16 ext_length */ backptr_ext_length = ptr; trunnel_assert(written <= avail); if (avail - written < 2) goto truncated; trunnel_set_uint16(ptr, trunnel_htons(obj->ext_length)); written += 2; ptr += 2; /* Encode u8 ext_type */ trunnel_assert(written <= avail); if (avail - written < 1) goto truncated; trunnel_set_uint8(ptr, (obj->ext_type)); written += 1; ptr += 1; /* Encode u8 ext_flags */ trunnel_assert(written <= avail); if (avail - written < 1) goto truncated; trunnel_set_uint8(ptr, (obj->ext_flags)); written += 1; ptr += 1; { size_t written_before_union = written; /* Encode union un[ext_type] */ trunnel_assert(written <= avail); switch (obj->ext_type) { case CERTEXT_SIGNED_WITH_KEY: /* Encode u8 un_signing_key[32] */ trunnel_assert(written <= avail); if (avail - written < 32) goto truncated; memcpy(ptr, obj->un_signing_key, 32); written += 32; ptr += 32; break; default: /* Encode u8 un_unparsed[] */ { size_t elt_len = TRUNNEL_DYNARRAY_LEN(&obj->un_unparsed); trunnel_assert(written <= avail); if (avail - written < elt_len) goto truncated; if (elt_len) memcpy(ptr, obj->un_unparsed.elts_, elt_len); written += elt_len; ptr += elt_len; } break; } /* Write the length field back to ext_length */ trunnel_assert(written >= written_before_union); #if UINT16_MAX < SIZE_MAX if (written - written_before_union > UINT16_MAX) goto check_failed; #endif trunnel_set_uint16(backptr_ext_length, trunnel_htons(written - written_before_union)); } trunnel_assert(ptr == output + written); #ifdef TRUNNEL_CHECK_ENCODED_LEN { trunnel_assert(encoded_len >= 0); trunnel_assert((size_t)encoded_len == written); } #endif return written; truncated: result = -2; goto fail; check_failed: (void)msg; result = -1; goto fail; fail: trunnel_assert(result < 0); return result; } /** As ed25519_cert_extension_parse(), but do not allocate the output * object. */ static ssize_t ed25519_cert_extension_parse_into(ed25519_cert_extension_t *obj, const uint8_t *input, const size_t len_in) { const uint8_t *ptr = input; size_t remaining = len_in; ssize_t result = 0; (void)result; /* Parse u16 ext_length */ CHECK_REMAINING(2, truncated); obj->ext_length = trunnel_ntohs(trunnel_get_uint16(ptr)); remaining -= 2; ptr += 2; /* Parse u8 ext_type */ CHECK_REMAINING(1, truncated); obj->ext_type = (trunnel_get_uint8(ptr)); remaining -= 1; ptr += 1; /* Parse u8 ext_flags */ CHECK_REMAINING(1, truncated); obj->ext_flags = (trunnel_get_uint8(ptr)); remaining -= 1; ptr += 1; { size_t remaining_after; CHECK_REMAINING(obj->ext_length, truncated); remaining_after = remaining - obj->ext_length; remaining = obj->ext_length; /* Parse union un[ext_type] */ switch (obj->ext_type) { case CERTEXT_SIGNED_WITH_KEY: /* Parse u8 un_signing_key[32] */ CHECK_REMAINING(32, fail); memcpy(obj->un_signing_key, ptr, 32); remaining -= 32; ptr += 32; break; default: /* Parse u8 un_unparsed[] */ TRUNNEL_DYNARRAY_EXPAND(uint8_t, &obj->un_unparsed, remaining, {}); obj->un_unparsed.n_ = remaining; if (remaining) memcpy(obj->un_unparsed.elts_, ptr, remaining); ptr += remaining; remaining -= remaining; break; } if (remaining != 0) goto fail; remaining = remaining_after; } trunnel_assert(ptr + remaining == input + len_in); return len_in - remaining; truncated: return -2; trunnel_alloc_failed: return -1; fail: result = -1; return result; } ssize_t ed25519_cert_extension_parse(ed25519_cert_extension_t **output, const uint8_t *input, const size_t len_in) { ssize_t result; *output = ed25519_cert_extension_new(); if (NULL == *output) return -1; result = ed25519_cert_extension_parse_into(*output, input, len_in); if (result < 0) { ed25519_cert_extension_free(*output); *output = NULL; } return result; } ed25519_cert_t * ed25519_cert_new(void) { ed25519_cert_t *val = trunnel_calloc(1, sizeof(ed25519_cert_t)); if (NULL == val) return NULL; val->version = 1; return val; } /** Release all storage held inside 'obj', but do not free 'obj'. */ static void ed25519_cert_clear(ed25519_cert_t *obj) { (void) obj; { unsigned idx; for (idx = 0; idx < TRUNNEL_DYNARRAY_LEN(&obj->ext); ++idx) { ed25519_cert_extension_free(TRUNNEL_DYNARRAY_GET(&obj->ext, idx)); } } TRUNNEL_DYNARRAY_WIPE(&obj->ext); TRUNNEL_DYNARRAY_CLEAR(&obj->ext); } void ed25519_cert_free(ed25519_cert_t *obj) { if (obj == NULL) return; ed25519_cert_clear(obj); trunnel_memwipe(obj, sizeof(ed25519_cert_t)); trunnel_free_(obj); } uint8_t ed25519_cert_get_version(ed25519_cert_t *inp) { return inp->version; } int ed25519_cert_set_version(ed25519_cert_t *inp, uint8_t val) { if (! ((val == 1))) { TRUNNEL_SET_ERROR_CODE(inp); return -1; } inp->version = val; return 0; } uint8_t ed25519_cert_get_cert_type(ed25519_cert_t *inp) { return inp->cert_type; } int ed25519_cert_set_cert_type(ed25519_cert_t *inp, uint8_t val) { inp->cert_type = val; return 0; } uint32_t ed25519_cert_get_exp_field(ed25519_cert_t *inp) { return inp->exp_field; } int ed25519_cert_set_exp_field(ed25519_cert_t *inp, uint32_t val) { inp->exp_field = val; return 0; } uint8_t ed25519_cert_get_cert_key_type(ed25519_cert_t *inp) { return inp->cert_key_type; } int ed25519_cert_set_cert_key_type(ed25519_cert_t *inp, uint8_t val) { inp->cert_key_type = val; return 0; } size_t ed25519_cert_getlen_certified_key(const ed25519_cert_t *inp) { (void)inp; return 32; } uint8_t ed25519_cert_get_certified_key(const ed25519_cert_t *inp, size_t idx) { trunnel_assert(idx < 32); return inp->certified_key[idx]; } int ed25519_cert_set_certified_key(ed25519_cert_t *inp, size_t idx, uint8_t elt) { trunnel_assert(idx < 32); inp->certified_key[idx] = elt; return 0; } uint8_t * ed25519_cert_getarray_certified_key(ed25519_cert_t *inp) { return inp->certified_key; } uint8_t ed25519_cert_get_n_extensions(ed25519_cert_t *inp) { return inp->n_extensions; } int ed25519_cert_set_n_extensions(ed25519_cert_t *inp, uint8_t val) { inp->n_extensions = val; return 0; } size_t ed25519_cert_getlen_ext(const ed25519_cert_t *inp) { return TRUNNEL_DYNARRAY_LEN(&inp->ext); } struct ed25519_cert_extension_st * ed25519_cert_get_ext(ed25519_cert_t *inp, size_t idx) { return TRUNNEL_DYNARRAY_GET(&inp->ext, idx); } int ed25519_cert_set_ext(ed25519_cert_t *inp, size_t idx, struct ed25519_cert_extension_st * elt) { ed25519_cert_extension_t *oldval = TRUNNEL_DYNARRAY_GET(&inp->ext, idx); if (oldval && oldval != elt) ed25519_cert_extension_free(oldval); return ed25519_cert_set0_ext(inp, idx, elt); } int ed25519_cert_set0_ext(ed25519_cert_t *inp, size_t idx, struct ed25519_cert_extension_st * elt) { TRUNNEL_DYNARRAY_SET(&inp->ext, idx, elt); return 0; } int ed25519_cert_add_ext(ed25519_cert_t *inp, struct ed25519_cert_extension_st * elt) { #if SIZE_MAX >= UINT8_MAX if (inp->ext.n_ == UINT8_MAX) goto trunnel_alloc_failed; #endif TRUNNEL_DYNARRAY_ADD(struct ed25519_cert_extension_st *, &inp->ext, elt, {}); return 0; trunnel_alloc_failed: TRUNNEL_SET_ERROR_CODE(inp); return -1; } struct ed25519_cert_extension_st * * ed25519_cert_getarray_ext(ed25519_cert_t *inp) { return inp->ext.elts_; } int ed25519_cert_setlen_ext(ed25519_cert_t *inp, size_t newlen) { struct ed25519_cert_extension_st * *newptr; #if UINT8_MAX < SIZE_MAX if (newlen > UINT8_MAX) goto trunnel_alloc_failed; #endif newptr = trunnel_dynarray_setlen(&inp->ext.allocated_, &inp->ext.n_, inp->ext.elts_, newlen, sizeof(inp->ext.elts_[0]), (trunnel_free_fn_t) ed25519_cert_extension_free, &inp->trunnel_error_code_); if (newlen != 0 && newptr == NULL) goto trunnel_alloc_failed; inp->ext.elts_ = newptr; return 0; trunnel_alloc_failed: TRUNNEL_SET_ERROR_CODE(inp); return -1; } size_t ed25519_cert_getlen_signature(const ed25519_cert_t *inp) { (void)inp; return 64; } uint8_t ed25519_cert_get_signature(const ed25519_cert_t *inp, size_t idx) { trunnel_assert(idx < 64); return inp->signature[idx]; } int ed25519_cert_set_signature(ed25519_cert_t *inp, size_t idx, uint8_t elt) { trunnel_assert(idx < 64); inp->signature[idx] = elt; return 0; } uint8_t * ed25519_cert_getarray_signature(ed25519_cert_t *inp) { return inp->signature; } const char * ed25519_cert_check(const ed25519_cert_t *obj) { if (obj == NULL) return "Object was NULL"; if (obj->trunnel_error_code_) return "A set function failed on this object"; if (! (obj->version == 1)) return "Integer out of bounds"; { const char *msg; unsigned idx; for (idx = 0; idx < TRUNNEL_DYNARRAY_LEN(&obj->ext); ++idx) { if (NULL != (msg = ed25519_cert_extension_check(TRUNNEL_DYNARRAY_GET(&obj->ext, idx)))) return msg; } } if (TRUNNEL_DYNARRAY_LEN(&obj->ext) != obj->n_extensions) return "Length mismatch for ext"; return NULL; } ssize_t ed25519_cert_encoded_len(const ed25519_cert_t *obj) { ssize_t result = 0; if (NULL != ed25519_cert_check(obj)) return -1; /* Length of u8 version IN [1] */ result += 1; /* Length of u8 cert_type */ result += 1; /* Length of u32 exp_field */ result += 4; /* Length of u8 cert_key_type */ result += 1; /* Length of u8 certified_key[32] */ result += 32; /* Length of u8 n_extensions */ result += 1; /* Length of struct ed25519_cert_extension ext[n_extensions] */ { unsigned idx; for (idx = 0; idx < TRUNNEL_DYNARRAY_LEN(&obj->ext); ++idx) { result += ed25519_cert_extension_encoded_len(TRUNNEL_DYNARRAY_GET(&obj->ext, idx)); } } /* Length of u8 signature[64] */ result += 64; return result; } int ed25519_cert_clear_errors(ed25519_cert_t *obj) { int r = obj->trunnel_error_code_; obj->trunnel_error_code_ = 0; return r; } ssize_t ed25519_cert_encode(uint8_t *output, const size_t avail, const ed25519_cert_t *obj) { ssize_t result = 0; size_t written = 0; uint8_t *ptr = output; const char *msg; #ifdef TRUNNEL_CHECK_ENCODED_LEN const ssize_t encoded_len = ed25519_cert_encoded_len(obj); #endif if (NULL != (msg = ed25519_cert_check(obj))) goto check_failed; #ifdef TRUNNEL_CHECK_ENCODED_LEN trunnel_assert(encoded_len >= 0); #endif /* Encode u8 version IN [1] */ trunnel_assert(written <= avail); if (avail - written < 1) goto truncated; trunnel_set_uint8(ptr, (obj->version)); written += 1; ptr += 1; /* Encode u8 cert_type */ trunnel_assert(written <= avail); if (avail - written < 1) goto truncated; trunnel_set_uint8(ptr, (obj->cert_type)); written += 1; ptr += 1; /* Encode u32 exp_field */ trunnel_assert(written <= avail); if (avail - written < 4) goto truncated; trunnel_set_uint32(ptr, trunnel_htonl(obj->exp_field)); written += 4; ptr += 4; /* Encode u8 cert_key_type */ trunnel_assert(written <= avail); if (avail - written < 1) goto truncated; trunnel_set_uint8(ptr, (obj->cert_key_type)); written += 1; ptr += 1; /* Encode u8 certified_key[32] */ trunnel_assert(written <= avail); if (avail - written < 32) goto truncated; memcpy(ptr, obj->certified_key, 32); written += 32; ptr += 32; /* Encode u8 n_extensions */ trunnel_assert(written <= avail); if (avail - written < 1) goto truncated; trunnel_set_uint8(ptr, (obj->n_extensions)); written += 1; ptr += 1; /* Encode struct ed25519_cert_extension ext[n_extensions] */ { unsigned idx; for (idx = 0; idx < TRUNNEL_DYNARRAY_LEN(&obj->ext); ++idx) { trunnel_assert(written <= avail); result = ed25519_cert_extension_encode(ptr, avail - written, TRUNNEL_DYNARRAY_GET(&obj->ext, idx)); if (result < 0) goto fail; /* XXXXXXX !*/ written += result; ptr += result; } } /* Encode u8 signature[64] */ trunnel_assert(written <= avail); if (avail - written < 64) goto truncated; memcpy(ptr, obj->signature, 64); written += 64; ptr += 64; trunnel_assert(ptr == output + written); #ifdef TRUNNEL_CHECK_ENCODED_LEN { trunnel_assert(encoded_len >= 0); trunnel_assert((size_t)encoded_len == written); } #endif return written; truncated: result = -2; goto fail; check_failed: (void)msg; result = -1; goto fail; fail: trunnel_assert(result < 0); return result; } /** As ed25519_cert_parse(), but do not allocate the output object. */ static ssize_t ed25519_cert_parse_into(ed25519_cert_t *obj, const uint8_t *input, const size_t len_in) { const uint8_t *ptr = input; size_t remaining = len_in; ssize_t result = 0; (void)result; /* Parse u8 version IN [1] */ CHECK_REMAINING(1, truncated); obj->version = (trunnel_get_uint8(ptr)); remaining -= 1; ptr += 1; if (! (obj->version == 1)) goto fail; /* Parse u8 cert_type */ CHECK_REMAINING(1, truncated); obj->cert_type = (trunnel_get_uint8(ptr)); remaining -= 1; ptr += 1; /* Parse u32 exp_field */ CHECK_REMAINING(4, truncated); obj->exp_field = trunnel_ntohl(trunnel_get_uint32(ptr)); remaining -= 4; ptr += 4; /* Parse u8 cert_key_type */ CHECK_REMAINING(1, truncated); obj->cert_key_type = (trunnel_get_uint8(ptr)); remaining -= 1; ptr += 1; /* Parse u8 certified_key[32] */ CHECK_REMAINING(32, truncated); memcpy(obj->certified_key, ptr, 32); remaining -= 32; ptr += 32; /* Parse u8 n_extensions */ CHECK_REMAINING(1, truncated); obj->n_extensions = (trunnel_get_uint8(ptr)); remaining -= 1; ptr += 1; /* Parse struct ed25519_cert_extension ext[n_extensions] */ TRUNNEL_DYNARRAY_EXPAND(ed25519_cert_extension_t *, &obj->ext, obj->n_extensions, {}); { ed25519_cert_extension_t * elt; unsigned idx; for (idx = 0; idx < obj->n_extensions; ++idx) { result = ed25519_cert_extension_parse(&elt, ptr, remaining); if (result < 0) goto relay_fail; trunnel_assert((size_t)result <= remaining); remaining -= result; ptr += result; TRUNNEL_DYNARRAY_ADD(ed25519_cert_extension_t *, &obj->ext, elt, {ed25519_cert_extension_free(elt);}); } } /* Parse u8 signature[64] */ CHECK_REMAINING(64, truncated); memcpy(obj->signature, ptr, 64); remaining -= 64; ptr += 64; trunnel_assert(ptr + remaining == input + len_in); return len_in - remaining; truncated: return -2; relay_fail: trunnel_assert(result < 0); return result; trunnel_alloc_failed: return -1; fail: result = -1; return result; } ssize_t ed25519_cert_parse(ed25519_cert_t **output, const uint8_t *input, const size_t len_in) { ssize_t result; *output = ed25519_cert_new(); if (NULL == *output) return -1; result = ed25519_cert_parse_into(*output, input, len_in); if (result < 0) { ed25519_cert_free(*output); *output = NULL; } return result; } tor-0.2.9.10/src/trunnel/pwbox.h0000644000175000017500000001633313051624457013271 00000000000000/* pwbox.h -- generated by by Trunnel v1.4.6. * https://gitweb.torproject.org/trunnel.git * You probably shouldn't edit this file. */ #ifndef TRUNNEL_PWBOX_H #define TRUNNEL_PWBOX_H #include #include "trunnel.h" #define PWBOX0_CONST0 1414484546 #define PWBOX0_CONST1 1331179568 #if !defined(TRUNNEL_OPAQUE) && !defined(TRUNNEL_OPAQUE_PWBOX_ENCODED) struct pwbox_encoded_st { uint32_t fixedbytes0; uint32_t fixedbytes1; uint8_t header_len; TRUNNEL_DYNARRAY_HEAD(, uint8_t) skey_header; uint8_t iv[16]; TRUNNEL_DYNARRAY_HEAD(, uint8_t) data; uint8_t hmac[32]; uint8_t trunnel_error_code_; }; #endif typedef struct pwbox_encoded_st pwbox_encoded_t; /** Return a newly allocated pwbox_encoded with all elements set to * zero. */ pwbox_encoded_t *pwbox_encoded_new(void); /** Release all storage held by the pwbox_encoded in 'victim'. (Do * nothing if 'victim' is NULL.) */ void pwbox_encoded_free(pwbox_encoded_t *victim); /** Try to parse a pwbox_encoded from the buffer in 'input', using up * to 'len_in' bytes from the input buffer. On success, return the * number of bytes consumed and set *output to the newly allocated * pwbox_encoded_t. On failure, return -2 if the input appears * truncated, and -1 if the input is otherwise invalid. */ ssize_t pwbox_encoded_parse(pwbox_encoded_t **output, const uint8_t *input, const size_t len_in); /** Return the number of bytes we expect to need to encode the * pwbox_encoded in 'obj'. On failure, return a negative value. Note * that this value may be an overestimate, and can even be an * underestimate for certain unencodeable objects. */ ssize_t pwbox_encoded_encoded_len(const pwbox_encoded_t *obj); /** Try to encode the pwbox_encoded from 'input' into the buffer at * 'output', using up to 'avail' bytes of the output buffer. On * success, return the number of bytes used. On failure, return -2 if * the buffer was not long enough, and -1 if the input was invalid. */ ssize_t pwbox_encoded_encode(uint8_t *output, size_t avail, const pwbox_encoded_t *input); /** Check whether the internal state of the pwbox_encoded in 'obj' is * consistent. Return NULL if it is, and a short message if it is not. */ const char *pwbox_encoded_check(const pwbox_encoded_t *obj); /** Clear any errors that were set on the object 'obj' by its setter * functions. Return true iff errors were cleared. */ int pwbox_encoded_clear_errors(pwbox_encoded_t *obj); /** Return the value of the fixedbytes0 field of the pwbox_encoded_t * in 'inp' */ uint32_t pwbox_encoded_get_fixedbytes0(pwbox_encoded_t *inp); /** Set the value of the fixedbytes0 field of the pwbox_encoded_t in * 'inp' to 'val'. Return 0 on success; return -1 and set the error * code on 'inp' on failure. */ int pwbox_encoded_set_fixedbytes0(pwbox_encoded_t *inp, uint32_t val); /** Return the value of the fixedbytes1 field of the pwbox_encoded_t * in 'inp' */ uint32_t pwbox_encoded_get_fixedbytes1(pwbox_encoded_t *inp); /** Set the value of the fixedbytes1 field of the pwbox_encoded_t in * 'inp' to 'val'. Return 0 on success; return -1 and set the error * code on 'inp' on failure. */ int pwbox_encoded_set_fixedbytes1(pwbox_encoded_t *inp, uint32_t val); /** Return the value of the header_len field of the pwbox_encoded_t in * 'inp' */ uint8_t pwbox_encoded_get_header_len(pwbox_encoded_t *inp); /** Set the value of the header_len field of the pwbox_encoded_t in * 'inp' to 'val'. Return 0 on success; return -1 and set the error * code on 'inp' on failure. */ int pwbox_encoded_set_header_len(pwbox_encoded_t *inp, uint8_t val); /** Return the length of the dynamic array holding the skey_header * field of the pwbox_encoded_t in 'inp'. */ size_t pwbox_encoded_getlen_skey_header(const pwbox_encoded_t *inp); /** Return the element at position 'idx' of the dynamic array field * skey_header of the pwbox_encoded_t in 'inp'. */ uint8_t pwbox_encoded_get_skey_header(pwbox_encoded_t *inp, size_t idx); /** Change the element at position 'idx' of the dynamic array field * skey_header of the pwbox_encoded_t in 'inp', so that it will hold * the value 'elt'. */ int pwbox_encoded_set_skey_header(pwbox_encoded_t *inp, size_t idx, uint8_t elt); /** Append a new element 'elt' to the dynamic array field skey_header * of the pwbox_encoded_t in 'inp'. */ int pwbox_encoded_add_skey_header(pwbox_encoded_t *inp, uint8_t elt); /** Return a pointer to the variable-length array field skey_header of * 'inp'. */ uint8_t * pwbox_encoded_getarray_skey_header(pwbox_encoded_t *inp); /** Change the length of the variable-length array field skey_header * of 'inp' to 'newlen'.Fill extra elements with 0. Return 0 on * success; return -1 and set the error code on 'inp' on failure. */ int pwbox_encoded_setlen_skey_header(pwbox_encoded_t *inp, size_t newlen); /** Return the (constant) length of the array holding the iv field of * the pwbox_encoded_t in 'inp'. */ size_t pwbox_encoded_getlen_iv(const pwbox_encoded_t *inp); /** Return the element at position 'idx' of the fixed array field iv * of the pwbox_encoded_t in 'inp'. */ uint8_t pwbox_encoded_get_iv(const pwbox_encoded_t *inp, size_t idx); /** Change the element at position 'idx' of the fixed array field iv * of the pwbox_encoded_t in 'inp', so that it will hold the value * 'elt'. */ int pwbox_encoded_set_iv(pwbox_encoded_t *inp, size_t idx, uint8_t elt); /** Return a pointer to the 16-element array field iv of 'inp'. */ uint8_t * pwbox_encoded_getarray_iv(pwbox_encoded_t *inp); /** Return the length of the dynamic array holding the data field of * the pwbox_encoded_t in 'inp'. */ size_t pwbox_encoded_getlen_data(const pwbox_encoded_t *inp); /** Return the element at position 'idx' of the dynamic array field * data of the pwbox_encoded_t in 'inp'. */ uint8_t pwbox_encoded_get_data(pwbox_encoded_t *inp, size_t idx); /** Change the element at position 'idx' of the dynamic array field * data of the pwbox_encoded_t in 'inp', so that it will hold the * value 'elt'. */ int pwbox_encoded_set_data(pwbox_encoded_t *inp, size_t idx, uint8_t elt); /** Append a new element 'elt' to the dynamic array field data of the * pwbox_encoded_t in 'inp'. */ int pwbox_encoded_add_data(pwbox_encoded_t *inp, uint8_t elt); /** Return a pointer to the variable-length array field data of 'inp'. */ uint8_t * pwbox_encoded_getarray_data(pwbox_encoded_t *inp); /** Change the length of the variable-length array field data of 'inp' * to 'newlen'.Fill extra elements with 0. Return 0 on success; return * -1 and set the error code on 'inp' on failure. */ int pwbox_encoded_setlen_data(pwbox_encoded_t *inp, size_t newlen); /** Return the (constant) length of the array holding the hmac field * of the pwbox_encoded_t in 'inp'. */ size_t pwbox_encoded_getlen_hmac(const pwbox_encoded_t *inp); /** Return the element at position 'idx' of the fixed array field hmac * of the pwbox_encoded_t in 'inp'. */ uint8_t pwbox_encoded_get_hmac(const pwbox_encoded_t *inp, size_t idx); /** Change the element at position 'idx' of the fixed array field hmac * of the pwbox_encoded_t in 'inp', so that it will hold the value * 'elt'. */ int pwbox_encoded_set_hmac(pwbox_encoded_t *inp, size_t idx, uint8_t elt); /** Return a pointer to the 32-element array field hmac of 'inp'. */ uint8_t * pwbox_encoded_getarray_hmac(pwbox_encoded_t *inp); #endif tor-0.2.9.10/src/trunnel/include.am0000644000175000017500000000211513051624457013714 00000000000000 noinst_LIBRARIES += \ src/trunnel/libor-trunnel.a if UNITTESTS_ENABLED noinst_LIBRARIES += \ src/trunnel/libor-trunnel-testing.a endif AM_CPPFLAGS += -I$(srcdir)/src/ext/trunnel -I$(srcdir)/src/trunnel TRUNNELINPUTS = \ src/trunnel/ed25519_cert.trunnel \ src/trunnel/link_handshake.trunnel \ src/trunnel/pwbox.trunnel TRUNNELSOURCES = \ src/ext/trunnel/trunnel.c \ src/trunnel/ed25519_cert.c \ src/trunnel/link_handshake.c \ src/trunnel/pwbox.c TRUNNELHEADERS = \ src/ext/trunnel/trunnel.h \ src/ext/trunnel/trunnel-impl.h \ src/trunnel/trunnel-local.h \ src/trunnel/ed25519_cert.h \ src/trunnel/link_handshake.h \ src/trunnel/pwbox.h src_trunnel_libor_trunnel_a_SOURCES = $(TRUNNELSOURCES) src_trunnel_libor_trunnel_a_CPPFLAGS = -DTRUNNEL_LOCAL_H $(AM_CPPFLAGS) src_trunnel_libor_trunnel_testing_a_SOURCES = $(TRUNNELSOURCES) src_trunnel_libor_trunnel_testing_a_CPPFLAGS = -DTRUNNEL_LOCAL_H $(AM_CPPFLAGS) $(TEST_CPPFLAGS) src_trunnel_libor_trunnel_testing_a_CFLAGS = $(AM_CFLAGS) $(TEST_CFLAGS) noinst_HEADERS+= $(TRUNNELHEADERS) EXTRA_DIST += \ src/trunnel/README tor-0.2.9.10/src/trunnel/link_handshake.h0000644000175000017500000006765013051624457015105 00000000000000/* link_handshake.h -- generated by by Trunnel v1.4.6. * https://gitweb.torproject.org/trunnel.git * You probably shouldn't edit this file. */ #ifndef TRUNNEL_LINK_HANDSHAKE_H #define TRUNNEL_LINK_HANDSHAKE_H #include #include "trunnel.h" #define CERTTYPE_RSA1024_ID_LINK 1 #define CERTTYPE_RSA1024_ID_ID 2 #define CERTTYPE_RSA1024_ID_AUTH 3 #define CERTTYPE_ED_ID_SIGN 4 #define CERTTYPE_ED_SIGN_LINK 5 #define CERTTYPE_ED_SIGN_AUTH 6 #define CERTTYPE_RSA1024_ID_EDID 7 #if !defined(TRUNNEL_OPAQUE) && !defined(TRUNNEL_OPAQUE_AUTH_CHALLENGE_CELL) struct auth_challenge_cell_st { uint8_t challenge[32]; uint16_t n_methods; TRUNNEL_DYNARRAY_HEAD(, uint16_t) methods; uint8_t trunnel_error_code_; }; #endif typedef struct auth_challenge_cell_st auth_challenge_cell_t; #if !defined(TRUNNEL_OPAQUE) && !defined(TRUNNEL_OPAQUE_AUTH_CTX) struct auth_ctx_st { uint8_t is_ed; uint8_t trunnel_error_code_; }; #endif typedef struct auth_ctx_st auth_ctx_t; #if !defined(TRUNNEL_OPAQUE) && !defined(TRUNNEL_OPAQUE_CERTS_CELL_CERT) struct certs_cell_cert_st { uint8_t cert_type; uint16_t cert_len; TRUNNEL_DYNARRAY_HEAD(, uint8_t) body; uint8_t trunnel_error_code_; }; #endif typedef struct certs_cell_cert_st certs_cell_cert_t; #if !defined(TRUNNEL_OPAQUE) && !defined(TRUNNEL_OPAQUE_RSA_ED_CROSSCERT) struct rsa_ed_crosscert_st { uint8_t ed_key[32]; uint32_t expiration; const uint8_t *end_of_signed; uint8_t sig_len; TRUNNEL_DYNARRAY_HEAD(, uint8_t) sig; uint8_t trunnel_error_code_; }; #endif typedef struct rsa_ed_crosscert_st rsa_ed_crosscert_t; #if !defined(TRUNNEL_OPAQUE) && !defined(TRUNNEL_OPAQUE_AUTH1) struct auth1_st { uint8_t type[8]; uint8_t cid[32]; uint8_t sid[32]; uint8_t u1_cid_ed[32]; uint8_t u1_sid_ed[32]; uint8_t slog[32]; uint8_t clog[32]; uint8_t scert[32]; uint8_t tlssecrets[32]; const uint8_t *end_of_fixed_part; uint8_t rand[24]; const uint8_t *end_of_signed; TRUNNEL_DYNARRAY_HEAD(, uint8_t) sig; uint8_t trunnel_error_code_; }; #endif typedef struct auth1_st auth1_t; #if !defined(TRUNNEL_OPAQUE) && !defined(TRUNNEL_OPAQUE_CERTS_CELL) struct certs_cell_st { uint8_t n_certs; TRUNNEL_DYNARRAY_HEAD(, struct certs_cell_cert_st *) certs; uint8_t trunnel_error_code_; }; #endif typedef struct certs_cell_st certs_cell_t; /** Return a newly allocated auth_challenge_cell with all elements set * to zero. */ auth_challenge_cell_t *auth_challenge_cell_new(void); /** Release all storage held by the auth_challenge_cell in 'victim'. * (Do nothing if 'victim' is NULL.) */ void auth_challenge_cell_free(auth_challenge_cell_t *victim); /** Try to parse a auth_challenge_cell from the buffer in 'input', * using up to 'len_in' bytes from the input buffer. On success, * return the number of bytes consumed and set *output to the newly * allocated auth_challenge_cell_t. On failure, return -2 if the input * appears truncated, and -1 if the input is otherwise invalid. */ ssize_t auth_challenge_cell_parse(auth_challenge_cell_t **output, const uint8_t *input, const size_t len_in); /** Return the number of bytes we expect to need to encode the * auth_challenge_cell in 'obj'. On failure, return a negative value. * Note that this value may be an overestimate, and can even be an * underestimate for certain unencodeable objects. */ ssize_t auth_challenge_cell_encoded_len(const auth_challenge_cell_t *obj); /** Try to encode the auth_challenge_cell from 'input' into the buffer * at 'output', using up to 'avail' bytes of the output buffer. On * success, return the number of bytes used. On failure, return -2 if * the buffer was not long enough, and -1 if the input was invalid. */ ssize_t auth_challenge_cell_encode(uint8_t *output, size_t avail, const auth_challenge_cell_t *input); /** Check whether the internal state of the auth_challenge_cell in * 'obj' is consistent. Return NULL if it is, and a short message if * it is not. */ const char *auth_challenge_cell_check(const auth_challenge_cell_t *obj); /** Clear any errors that were set on the object 'obj' by its setter * functions. Return true iff errors were cleared. */ int auth_challenge_cell_clear_errors(auth_challenge_cell_t *obj); /** Return the (constant) length of the array holding the challenge * field of the auth_challenge_cell_t in 'inp'. */ size_t auth_challenge_cell_getlen_challenge(const auth_challenge_cell_t *inp); /** Return the element at position 'idx' of the fixed array field * challenge of the auth_challenge_cell_t in 'inp'. */ uint8_t auth_challenge_cell_get_challenge(const auth_challenge_cell_t *inp, size_t idx); /** Change the element at position 'idx' of the fixed array field * challenge of the auth_challenge_cell_t in 'inp', so that it will * hold the value 'elt'. */ int auth_challenge_cell_set_challenge(auth_challenge_cell_t *inp, size_t idx, uint8_t elt); /** Return a pointer to the 32-element array field challenge of 'inp'. */ uint8_t * auth_challenge_cell_getarray_challenge(auth_challenge_cell_t *inp); /** Return the value of the n_methods field of the * auth_challenge_cell_t in 'inp' */ uint16_t auth_challenge_cell_get_n_methods(auth_challenge_cell_t *inp); /** Set the value of the n_methods field of the auth_challenge_cell_t * in 'inp' to 'val'. Return 0 on success; return -1 and set the error * code on 'inp' on failure. */ int auth_challenge_cell_set_n_methods(auth_challenge_cell_t *inp, uint16_t val); /** Return the length of the dynamic array holding the methods field * of the auth_challenge_cell_t in 'inp'. */ size_t auth_challenge_cell_getlen_methods(const auth_challenge_cell_t *inp); /** Return the element at position 'idx' of the dynamic array field * methods of the auth_challenge_cell_t in 'inp'. */ uint16_t auth_challenge_cell_get_methods(auth_challenge_cell_t *inp, size_t idx); /** Change the element at position 'idx' of the dynamic array field * methods of the auth_challenge_cell_t in 'inp', so that it will hold * the value 'elt'. */ int auth_challenge_cell_set_methods(auth_challenge_cell_t *inp, size_t idx, uint16_t elt); /** Append a new element 'elt' to the dynamic array field methods of * the auth_challenge_cell_t in 'inp'. */ int auth_challenge_cell_add_methods(auth_challenge_cell_t *inp, uint16_t elt); /** Return a pointer to the variable-length array field methods of * 'inp'. */ uint16_t * auth_challenge_cell_getarray_methods(auth_challenge_cell_t *inp); /** Change the length of the variable-length array field methods of * 'inp' to 'newlen'.Fill extra elements with 0. Return 0 on success; * return -1 and set the error code on 'inp' on failure. */ int auth_challenge_cell_setlen_methods(auth_challenge_cell_t *inp, size_t newlen); /** Return a newly allocated auth_ctx with all elements set to zero. */ auth_ctx_t *auth_ctx_new(void); /** Release all storage held by the auth_ctx in 'victim'. (Do nothing * if 'victim' is NULL.) */ void auth_ctx_free(auth_ctx_t *victim); /** Return the value of the is_ed field of the auth_ctx_t in 'inp' */ uint8_t auth_ctx_get_is_ed(auth_ctx_t *inp); /** Set the value of the is_ed field of the auth_ctx_t in 'inp' to * 'val'. Return 0 on success; return -1 and set the error code on * 'inp' on failure. */ int auth_ctx_set_is_ed(auth_ctx_t *inp, uint8_t val); /** Return a newly allocated certs_cell_cert with all elements set to * zero. */ certs_cell_cert_t *certs_cell_cert_new(void); /** Release all storage held by the certs_cell_cert in 'victim'. (Do * nothing if 'victim' is NULL.) */ void certs_cell_cert_free(certs_cell_cert_t *victim); /** Try to parse a certs_cell_cert from the buffer in 'input', using * up to 'len_in' bytes from the input buffer. On success, return the * number of bytes consumed and set *output to the newly allocated * certs_cell_cert_t. On failure, return -2 if the input appears * truncated, and -1 if the input is otherwise invalid. */ ssize_t certs_cell_cert_parse(certs_cell_cert_t **output, const uint8_t *input, const size_t len_in); /** Return the number of bytes we expect to need to encode the * certs_cell_cert in 'obj'. On failure, return a negative value. Note * that this value may be an overestimate, and can even be an * underestimate for certain unencodeable objects. */ ssize_t certs_cell_cert_encoded_len(const certs_cell_cert_t *obj); /** Try to encode the certs_cell_cert from 'input' into the buffer at * 'output', using up to 'avail' bytes of the output buffer. On * success, return the number of bytes used. On failure, return -2 if * the buffer was not long enough, and -1 if the input was invalid. */ ssize_t certs_cell_cert_encode(uint8_t *output, size_t avail, const certs_cell_cert_t *input); /** Check whether the internal state of the certs_cell_cert in 'obj' * is consistent. Return NULL if it is, and a short message if it is * not. */ const char *certs_cell_cert_check(const certs_cell_cert_t *obj); /** Clear any errors that were set on the object 'obj' by its setter * functions. Return true iff errors were cleared. */ int certs_cell_cert_clear_errors(certs_cell_cert_t *obj); /** Return the value of the cert_type field of the certs_cell_cert_t * in 'inp' */ uint8_t certs_cell_cert_get_cert_type(certs_cell_cert_t *inp); /** Set the value of the cert_type field of the certs_cell_cert_t in * 'inp' to 'val'. Return 0 on success; return -1 and set the error * code on 'inp' on failure. */ int certs_cell_cert_set_cert_type(certs_cell_cert_t *inp, uint8_t val); /** Return the value of the cert_len field of the certs_cell_cert_t in * 'inp' */ uint16_t certs_cell_cert_get_cert_len(certs_cell_cert_t *inp); /** Set the value of the cert_len field of the certs_cell_cert_t in * 'inp' to 'val'. Return 0 on success; return -1 and set the error * code on 'inp' on failure. */ int certs_cell_cert_set_cert_len(certs_cell_cert_t *inp, uint16_t val); /** Return the length of the dynamic array holding the body field of * the certs_cell_cert_t in 'inp'. */ size_t certs_cell_cert_getlen_body(const certs_cell_cert_t *inp); /** Return the element at position 'idx' of the dynamic array field * body of the certs_cell_cert_t in 'inp'. */ uint8_t certs_cell_cert_get_body(certs_cell_cert_t *inp, size_t idx); /** Change the element at position 'idx' of the dynamic array field * body of the certs_cell_cert_t in 'inp', so that it will hold the * value 'elt'. */ int certs_cell_cert_set_body(certs_cell_cert_t *inp, size_t idx, uint8_t elt); /** Append a new element 'elt' to the dynamic array field body of the * certs_cell_cert_t in 'inp'. */ int certs_cell_cert_add_body(certs_cell_cert_t *inp, uint8_t elt); /** Return a pointer to the variable-length array field body of 'inp'. */ uint8_t * certs_cell_cert_getarray_body(certs_cell_cert_t *inp); /** Change the length of the variable-length array field body of 'inp' * to 'newlen'.Fill extra elements with 0. Return 0 on success; return * -1 and set the error code on 'inp' on failure. */ int certs_cell_cert_setlen_body(certs_cell_cert_t *inp, size_t newlen); /** Return a newly allocated rsa_ed_crosscert with all elements set to * zero. */ rsa_ed_crosscert_t *rsa_ed_crosscert_new(void); /** Release all storage held by the rsa_ed_crosscert in 'victim'. (Do * nothing if 'victim' is NULL.) */ void rsa_ed_crosscert_free(rsa_ed_crosscert_t *victim); /** Try to parse a rsa_ed_crosscert from the buffer in 'input', using * up to 'len_in' bytes from the input buffer. On success, return the * number of bytes consumed and set *output to the newly allocated * rsa_ed_crosscert_t. On failure, return -2 if the input appears * truncated, and -1 if the input is otherwise invalid. */ ssize_t rsa_ed_crosscert_parse(rsa_ed_crosscert_t **output, const uint8_t *input, const size_t len_in); /** Return the number of bytes we expect to need to encode the * rsa_ed_crosscert in 'obj'. On failure, return a negative value. * Note that this value may be an overestimate, and can even be an * underestimate for certain unencodeable objects. */ ssize_t rsa_ed_crosscert_encoded_len(const rsa_ed_crosscert_t *obj); /** Try to encode the rsa_ed_crosscert from 'input' into the buffer at * 'output', using up to 'avail' bytes of the output buffer. On * success, return the number of bytes used. On failure, return -2 if * the buffer was not long enough, and -1 if the input was invalid. */ ssize_t rsa_ed_crosscert_encode(uint8_t *output, size_t avail, const rsa_ed_crosscert_t *input); /** Check whether the internal state of the rsa_ed_crosscert in 'obj' * is consistent. Return NULL if it is, and a short message if it is * not. */ const char *rsa_ed_crosscert_check(const rsa_ed_crosscert_t *obj); /** Clear any errors that were set on the object 'obj' by its setter * functions. Return true iff errors were cleared. */ int rsa_ed_crosscert_clear_errors(rsa_ed_crosscert_t *obj); /** Return the (constant) length of the array holding the ed_key field * of the rsa_ed_crosscert_t in 'inp'. */ size_t rsa_ed_crosscert_getlen_ed_key(const rsa_ed_crosscert_t *inp); /** Return the element at position 'idx' of the fixed array field * ed_key of the rsa_ed_crosscert_t in 'inp'. */ uint8_t rsa_ed_crosscert_get_ed_key(const rsa_ed_crosscert_t *inp, size_t idx); /** Change the element at position 'idx' of the fixed array field * ed_key of the rsa_ed_crosscert_t in 'inp', so that it will hold the * value 'elt'. */ int rsa_ed_crosscert_set_ed_key(rsa_ed_crosscert_t *inp, size_t idx, uint8_t elt); /** Return a pointer to the 32-element array field ed_key of 'inp'. */ uint8_t * rsa_ed_crosscert_getarray_ed_key(rsa_ed_crosscert_t *inp); /** Return the value of the expiration field of the rsa_ed_crosscert_t * in 'inp' */ uint32_t rsa_ed_crosscert_get_expiration(rsa_ed_crosscert_t *inp); /** Set the value of the expiration field of the rsa_ed_crosscert_t in * 'inp' to 'val'. Return 0 on success; return -1 and set the error * code on 'inp' on failure. */ int rsa_ed_crosscert_set_expiration(rsa_ed_crosscert_t *inp, uint32_t val); /** Return the position for end_of_signed when we parsed this object */ const uint8_t * rsa_ed_crosscert_get_end_of_signed(const rsa_ed_crosscert_t *inp); /** Return the value of the sig_len field of the rsa_ed_crosscert_t in * 'inp' */ uint8_t rsa_ed_crosscert_get_sig_len(rsa_ed_crosscert_t *inp); /** Set the value of the sig_len field of the rsa_ed_crosscert_t in * 'inp' to 'val'. Return 0 on success; return -1 and set the error * code on 'inp' on failure. */ int rsa_ed_crosscert_set_sig_len(rsa_ed_crosscert_t *inp, uint8_t val); /** Return the length of the dynamic array holding the sig field of * the rsa_ed_crosscert_t in 'inp'. */ size_t rsa_ed_crosscert_getlen_sig(const rsa_ed_crosscert_t *inp); /** Return the element at position 'idx' of the dynamic array field * sig of the rsa_ed_crosscert_t in 'inp'. */ uint8_t rsa_ed_crosscert_get_sig(rsa_ed_crosscert_t *inp, size_t idx); /** Change the element at position 'idx' of the dynamic array field * sig of the rsa_ed_crosscert_t in 'inp', so that it will hold the * value 'elt'. */ int rsa_ed_crosscert_set_sig(rsa_ed_crosscert_t *inp, size_t idx, uint8_t elt); /** Append a new element 'elt' to the dynamic array field sig of the * rsa_ed_crosscert_t in 'inp'. */ int rsa_ed_crosscert_add_sig(rsa_ed_crosscert_t *inp, uint8_t elt); /** Return a pointer to the variable-length array field sig of 'inp'. */ uint8_t * rsa_ed_crosscert_getarray_sig(rsa_ed_crosscert_t *inp); /** Change the length of the variable-length array field sig of 'inp' * to 'newlen'.Fill extra elements with 0. Return 0 on success; return * -1 and set the error code on 'inp' on failure. */ int rsa_ed_crosscert_setlen_sig(rsa_ed_crosscert_t *inp, size_t newlen); /** Return a newly allocated auth1 with all elements set to zero. */ auth1_t *auth1_new(void); /** Release all storage held by the auth1 in 'victim'. (Do nothing if * 'victim' is NULL.) */ void auth1_free(auth1_t *victim); /** Try to parse a auth1 from the buffer in 'input', using up to * 'len_in' bytes from the input buffer. On success, return the number * of bytes consumed and set *output to the newly allocated auth1_t. * On failure, return -2 if the input appears truncated, and -1 if the * input is otherwise invalid. */ ssize_t auth1_parse(auth1_t **output, const uint8_t *input, const size_t len_in, const auth_ctx_t *auth_ctx_ctx); /** Return the number of bytes we expect to need to encode the auth1 * in 'obj'. On failure, return a negative value. Note that this value * may be an overestimate, and can even be an underestimate for * certain unencodeable objects. */ ssize_t auth1_encoded_len(const auth1_t *obj, const auth_ctx_t *auth_ctx_ctx); /** Try to encode the auth1 from 'input' into the buffer at 'output', * using up to 'avail' bytes of the output buffer. On success, return * the number of bytes used. On failure, return -2 if the buffer was * not long enough, and -1 if the input was invalid. */ ssize_t auth1_encode(uint8_t *output, size_t avail, const auth1_t *input, const auth_ctx_t *auth_ctx_ctx); /** Check whether the internal state of the auth1 in 'obj' is * consistent. Return NULL if it is, and a short message if it is not. */ const char *auth1_check(const auth1_t *obj, const auth_ctx_t *auth_ctx_ctx); /** Clear any errors that were set on the object 'obj' by its setter * functions. Return true iff errors were cleared. */ int auth1_clear_errors(auth1_t *obj); /** Return the (constant) length of the array holding the type field * of the auth1_t in 'inp'. */ size_t auth1_getlen_type(const auth1_t *inp); /** Return the element at position 'idx' of the fixed array field type * of the auth1_t in 'inp'. */ uint8_t auth1_get_type(const auth1_t *inp, size_t idx); /** Change the element at position 'idx' of the fixed array field type * of the auth1_t in 'inp', so that it will hold the value 'elt'. */ int auth1_set_type(auth1_t *inp, size_t idx, uint8_t elt); /** Return a pointer to the 8-element array field type of 'inp'. */ uint8_t * auth1_getarray_type(auth1_t *inp); /** Return the (constant) length of the array holding the cid field of * the auth1_t in 'inp'. */ size_t auth1_getlen_cid(const auth1_t *inp); /** Return the element at position 'idx' of the fixed array field cid * of the auth1_t in 'inp'. */ uint8_t auth1_get_cid(const auth1_t *inp, size_t idx); /** Change the element at position 'idx' of the fixed array field cid * of the auth1_t in 'inp', so that it will hold the value 'elt'. */ int auth1_set_cid(auth1_t *inp, size_t idx, uint8_t elt); /** Return a pointer to the 32-element array field cid of 'inp'. */ uint8_t * auth1_getarray_cid(auth1_t *inp); /** Return the (constant) length of the array holding the sid field of * the auth1_t in 'inp'. */ size_t auth1_getlen_sid(const auth1_t *inp); /** Return the element at position 'idx' of the fixed array field sid * of the auth1_t in 'inp'. */ uint8_t auth1_get_sid(const auth1_t *inp, size_t idx); /** Change the element at position 'idx' of the fixed array field sid * of the auth1_t in 'inp', so that it will hold the value 'elt'. */ int auth1_set_sid(auth1_t *inp, size_t idx, uint8_t elt); /** Return a pointer to the 32-element array field sid of 'inp'. */ uint8_t * auth1_getarray_sid(auth1_t *inp); /** Return the (constant) length of the array holding the u1_cid_ed * field of the auth1_t in 'inp'. */ size_t auth1_getlen_u1_cid_ed(const auth1_t *inp); /** Return the element at position 'idx' of the fixed array field * u1_cid_ed of the auth1_t in 'inp'. */ uint8_t auth1_get_u1_cid_ed(const auth1_t *inp, size_t idx); /** Change the element at position 'idx' of the fixed array field * u1_cid_ed of the auth1_t in 'inp', so that it will hold the value * 'elt'. */ int auth1_set_u1_cid_ed(auth1_t *inp, size_t idx, uint8_t elt); /** Return a pointer to the 32-element array field u1_cid_ed of 'inp'. */ uint8_t * auth1_getarray_u1_cid_ed(auth1_t *inp); /** Return the (constant) length of the array holding the u1_sid_ed * field of the auth1_t in 'inp'. */ size_t auth1_getlen_u1_sid_ed(const auth1_t *inp); /** Return the element at position 'idx' of the fixed array field * u1_sid_ed of the auth1_t in 'inp'. */ uint8_t auth1_get_u1_sid_ed(const auth1_t *inp, size_t idx); /** Change the element at position 'idx' of the fixed array field * u1_sid_ed of the auth1_t in 'inp', so that it will hold the value * 'elt'. */ int auth1_set_u1_sid_ed(auth1_t *inp, size_t idx, uint8_t elt); /** Return a pointer to the 32-element array field u1_sid_ed of 'inp'. */ uint8_t * auth1_getarray_u1_sid_ed(auth1_t *inp); /** Return the (constant) length of the array holding the slog field * of the auth1_t in 'inp'. */ size_t auth1_getlen_slog(const auth1_t *inp); /** Return the element at position 'idx' of the fixed array field slog * of the auth1_t in 'inp'. */ uint8_t auth1_get_slog(const auth1_t *inp, size_t idx); /** Change the element at position 'idx' of the fixed array field slog * of the auth1_t in 'inp', so that it will hold the value 'elt'. */ int auth1_set_slog(auth1_t *inp, size_t idx, uint8_t elt); /** Return a pointer to the 32-element array field slog of 'inp'. */ uint8_t * auth1_getarray_slog(auth1_t *inp); /** Return the (constant) length of the array holding the clog field * of the auth1_t in 'inp'. */ size_t auth1_getlen_clog(const auth1_t *inp); /** Return the element at position 'idx' of the fixed array field clog * of the auth1_t in 'inp'. */ uint8_t auth1_get_clog(const auth1_t *inp, size_t idx); /** Change the element at position 'idx' of the fixed array field clog * of the auth1_t in 'inp', so that it will hold the value 'elt'. */ int auth1_set_clog(auth1_t *inp, size_t idx, uint8_t elt); /** Return a pointer to the 32-element array field clog of 'inp'. */ uint8_t * auth1_getarray_clog(auth1_t *inp); /** Return the (constant) length of the array holding the scert field * of the auth1_t in 'inp'. */ size_t auth1_getlen_scert(const auth1_t *inp); /** Return the element at position 'idx' of the fixed array field * scert of the auth1_t in 'inp'. */ uint8_t auth1_get_scert(const auth1_t *inp, size_t idx); /** Change the element at position 'idx' of the fixed array field * scert of the auth1_t in 'inp', so that it will hold the value * 'elt'. */ int auth1_set_scert(auth1_t *inp, size_t idx, uint8_t elt); /** Return a pointer to the 32-element array field scert of 'inp'. */ uint8_t * auth1_getarray_scert(auth1_t *inp); /** Return the (constant) length of the array holding the tlssecrets * field of the auth1_t in 'inp'. */ size_t auth1_getlen_tlssecrets(const auth1_t *inp); /** Return the element at position 'idx' of the fixed array field * tlssecrets of the auth1_t in 'inp'. */ uint8_t auth1_get_tlssecrets(const auth1_t *inp, size_t idx); /** Change the element at position 'idx' of the fixed array field * tlssecrets of the auth1_t in 'inp', so that it will hold the value * 'elt'. */ int auth1_set_tlssecrets(auth1_t *inp, size_t idx, uint8_t elt); /** Return a pointer to the 32-element array field tlssecrets of * 'inp'. */ uint8_t * auth1_getarray_tlssecrets(auth1_t *inp); /** Return the position for end_of_fixed_part when we parsed this * object */ const uint8_t * auth1_get_end_of_fixed_part(const auth1_t *inp); /** Return the (constant) length of the array holding the rand field * of the auth1_t in 'inp'. */ size_t auth1_getlen_rand(const auth1_t *inp); /** Return the element at position 'idx' of the fixed array field rand * of the auth1_t in 'inp'. */ uint8_t auth1_get_rand(const auth1_t *inp, size_t idx); /** Change the element at position 'idx' of the fixed array field rand * of the auth1_t in 'inp', so that it will hold the value 'elt'. */ int auth1_set_rand(auth1_t *inp, size_t idx, uint8_t elt); /** Return a pointer to the 24-element array field rand of 'inp'. */ uint8_t * auth1_getarray_rand(auth1_t *inp); /** Return the position for end_of_signed when we parsed this object */ const uint8_t * auth1_get_end_of_signed(const auth1_t *inp); /** Return the length of the dynamic array holding the sig field of * the auth1_t in 'inp'. */ size_t auth1_getlen_sig(const auth1_t *inp); /** Return the element at position 'idx' of the dynamic array field * sig of the auth1_t in 'inp'. */ uint8_t auth1_get_sig(auth1_t *inp, size_t idx); /** Change the element at position 'idx' of the dynamic array field * sig of the auth1_t in 'inp', so that it will hold the value 'elt'. */ int auth1_set_sig(auth1_t *inp, size_t idx, uint8_t elt); /** Append a new element 'elt' to the dynamic array field sig of the * auth1_t in 'inp'. */ int auth1_add_sig(auth1_t *inp, uint8_t elt); /** Return a pointer to the variable-length array field sig of 'inp'. */ uint8_t * auth1_getarray_sig(auth1_t *inp); /** Change the length of the variable-length array field sig of 'inp' * to 'newlen'.Fill extra elements with 0. Return 0 on success; return * -1 and set the error code on 'inp' on failure. */ int auth1_setlen_sig(auth1_t *inp, size_t newlen); /** Return a newly allocated certs_cell with all elements set to zero. */ certs_cell_t *certs_cell_new(void); /** Release all storage held by the certs_cell in 'victim'. (Do * nothing if 'victim' is NULL.) */ void certs_cell_free(certs_cell_t *victim); /** Try to parse a certs_cell from the buffer in 'input', using up to * 'len_in' bytes from the input buffer. On success, return the number * of bytes consumed and set *output to the newly allocated * certs_cell_t. On failure, return -2 if the input appears truncated, * and -1 if the input is otherwise invalid. */ ssize_t certs_cell_parse(certs_cell_t **output, const uint8_t *input, const size_t len_in); /** Return the number of bytes we expect to need to encode the * certs_cell in 'obj'. On failure, return a negative value. Note that * this value may be an overestimate, and can even be an underestimate * for certain unencodeable objects. */ ssize_t certs_cell_encoded_len(const certs_cell_t *obj); /** Try to encode the certs_cell from 'input' into the buffer at * 'output', using up to 'avail' bytes of the output buffer. On * success, return the number of bytes used. On failure, return -2 if * the buffer was not long enough, and -1 if the input was invalid. */ ssize_t certs_cell_encode(uint8_t *output, size_t avail, const certs_cell_t *input); /** Check whether the internal state of the certs_cell in 'obj' is * consistent. Return NULL if it is, and a short message if it is not. */ const char *certs_cell_check(const certs_cell_t *obj); /** Clear any errors that were set on the object 'obj' by its setter * functions. Return true iff errors were cleared. */ int certs_cell_clear_errors(certs_cell_t *obj); /** Return the value of the n_certs field of the certs_cell_t in 'inp' */ uint8_t certs_cell_get_n_certs(certs_cell_t *inp); /** Set the value of the n_certs field of the certs_cell_t in 'inp' to * 'val'. Return 0 on success; return -1 and set the error code on * 'inp' on failure. */ int certs_cell_set_n_certs(certs_cell_t *inp, uint8_t val); /** Return the length of the dynamic array holding the certs field of * the certs_cell_t in 'inp'. */ size_t certs_cell_getlen_certs(const certs_cell_t *inp); /** Return the element at position 'idx' of the dynamic array field * certs of the certs_cell_t in 'inp'. */ struct certs_cell_cert_st * certs_cell_get_certs(certs_cell_t *inp, size_t idx); /** Change the element at position 'idx' of the dynamic array field * certs of the certs_cell_t in 'inp', so that it will hold the value * 'elt'. Free the previous value, if any. */ int certs_cell_set_certs(certs_cell_t *inp, size_t idx, struct certs_cell_cert_st * elt); /** As certs_cell_set_certs, but does not free the previous value. */ int certs_cell_set0_certs(certs_cell_t *inp, size_t idx, struct certs_cell_cert_st * elt); /** Append a new element 'elt' to the dynamic array field certs of the * certs_cell_t in 'inp'. */ int certs_cell_add_certs(certs_cell_t *inp, struct certs_cell_cert_st * elt); /** Return a pointer to the variable-length array field certs of * 'inp'. */ struct certs_cell_cert_st * * certs_cell_getarray_certs(certs_cell_t *inp); /** Change the length of the variable-length array field certs of * 'inp' to 'newlen'.Fill extra elements with NULL; free removed * elements. Return 0 on success; return -1 and set the error code on * 'inp' on failure. */ int certs_cell_setlen_certs(certs_cell_t *inp, size_t newlen); #endif tor-0.2.9.10/src/trunnel/trunnel-local.h0000644000175000017500000000067413002150440014670 00000000000000 #ifndef TRUNNEL_LOCAL_H_INCLUDED #define TRUNNEL_LOCAL_H_INCLUDED #include "util.h" #include "compat.h" #include "crypto.h" #define trunnel_malloc tor_malloc #define trunnel_calloc tor_calloc #define trunnel_strdup tor_strdup #define trunnel_free_ tor_free_ #define trunnel_realloc tor_realloc #define trunnel_reallocarray tor_reallocarray #define trunnel_assert tor_assert #define trunnel_memwipe(mem, len) memwipe((mem), 0, (len)) #endif tor-0.2.9.10/src/trunnel/link_handshake.c0000644000175000017500000011744013051624457015071 00000000000000/* link_handshake.c -- generated by Trunnel v1.4.6. * https://gitweb.torproject.org/trunnel.git * You probably shouldn't edit this file. */ #include #include "trunnel-impl.h" #include "link_handshake.h" #define TRUNNEL_SET_ERROR_CODE(obj) \ do { \ (obj)->trunnel_error_code_ = 1; \ } while (0) #if defined(__COVERITY__) || defined(__clang_analyzer__) /* If we're runnning a static analysis tool, we don't want it to complain * that some of our remaining-bytes checks are dead-code. */ int linkhandshake_deadcode_dummy__ = 0; #define OR_DEADCODE_DUMMY || linkhandshake_deadcode_dummy__ #else #define OR_DEADCODE_DUMMY #endif #define CHECK_REMAINING(nbytes, label) \ do { \ if (remaining < (nbytes) OR_DEADCODE_DUMMY) { \ goto label; \ } \ } while (0) auth_challenge_cell_t * auth_challenge_cell_new(void) { auth_challenge_cell_t *val = trunnel_calloc(1, sizeof(auth_challenge_cell_t)); if (NULL == val) return NULL; return val; } /** Release all storage held inside 'obj', but do not free 'obj'. */ static void auth_challenge_cell_clear(auth_challenge_cell_t *obj) { (void) obj; TRUNNEL_DYNARRAY_WIPE(&obj->methods); TRUNNEL_DYNARRAY_CLEAR(&obj->methods); } void auth_challenge_cell_free(auth_challenge_cell_t *obj) { if (obj == NULL) return; auth_challenge_cell_clear(obj); trunnel_memwipe(obj, sizeof(auth_challenge_cell_t)); trunnel_free_(obj); } size_t auth_challenge_cell_getlen_challenge(const auth_challenge_cell_t *inp) { (void)inp; return 32; } uint8_t auth_challenge_cell_get_challenge(const auth_challenge_cell_t *inp, size_t idx) { trunnel_assert(idx < 32); return inp->challenge[idx]; } int auth_challenge_cell_set_challenge(auth_challenge_cell_t *inp, size_t idx, uint8_t elt) { trunnel_assert(idx < 32); inp->challenge[idx] = elt; return 0; } uint8_t * auth_challenge_cell_getarray_challenge(auth_challenge_cell_t *inp) { return inp->challenge; } uint16_t auth_challenge_cell_get_n_methods(auth_challenge_cell_t *inp) { return inp->n_methods; } int auth_challenge_cell_set_n_methods(auth_challenge_cell_t *inp, uint16_t val) { inp->n_methods = val; return 0; } size_t auth_challenge_cell_getlen_methods(const auth_challenge_cell_t *inp) { return TRUNNEL_DYNARRAY_LEN(&inp->methods); } uint16_t auth_challenge_cell_get_methods(auth_challenge_cell_t *inp, size_t idx) { return TRUNNEL_DYNARRAY_GET(&inp->methods, idx); } int auth_challenge_cell_set_methods(auth_challenge_cell_t *inp, size_t idx, uint16_t elt) { TRUNNEL_DYNARRAY_SET(&inp->methods, idx, elt); return 0; } int auth_challenge_cell_add_methods(auth_challenge_cell_t *inp, uint16_t elt) { #if SIZE_MAX >= UINT16_MAX if (inp->methods.n_ == UINT16_MAX) goto trunnel_alloc_failed; #endif TRUNNEL_DYNARRAY_ADD(uint16_t, &inp->methods, elt, {}); return 0; trunnel_alloc_failed: TRUNNEL_SET_ERROR_CODE(inp); return -1; } uint16_t * auth_challenge_cell_getarray_methods(auth_challenge_cell_t *inp) { return inp->methods.elts_; } int auth_challenge_cell_setlen_methods(auth_challenge_cell_t *inp, size_t newlen) { uint16_t *newptr; #if UINT16_MAX < SIZE_MAX if (newlen > UINT16_MAX) goto trunnel_alloc_failed; #endif newptr = trunnel_dynarray_setlen(&inp->methods.allocated_, &inp->methods.n_, inp->methods.elts_, newlen, sizeof(inp->methods.elts_[0]), (trunnel_free_fn_t) NULL, &inp->trunnel_error_code_); if (newlen != 0 && newptr == NULL) goto trunnel_alloc_failed; inp->methods.elts_ = newptr; return 0; trunnel_alloc_failed: TRUNNEL_SET_ERROR_CODE(inp); return -1; } const char * auth_challenge_cell_check(const auth_challenge_cell_t *obj) { if (obj == NULL) return "Object was NULL"; if (obj->trunnel_error_code_) return "A set function failed on this object"; if (TRUNNEL_DYNARRAY_LEN(&obj->methods) != obj->n_methods) return "Length mismatch for methods"; return NULL; } ssize_t auth_challenge_cell_encoded_len(const auth_challenge_cell_t *obj) { ssize_t result = 0; if (NULL != auth_challenge_cell_check(obj)) return -1; /* Length of u8 challenge[32] */ result += 32; /* Length of u16 n_methods */ result += 2; /* Length of u16 methods[n_methods] */ result += 2 * TRUNNEL_DYNARRAY_LEN(&obj->methods); return result; } int auth_challenge_cell_clear_errors(auth_challenge_cell_t *obj) { int r = obj->trunnel_error_code_; obj->trunnel_error_code_ = 0; return r; } ssize_t auth_challenge_cell_encode(uint8_t *output, const size_t avail, const auth_challenge_cell_t *obj) { ssize_t result = 0; size_t written = 0; uint8_t *ptr = output; const char *msg; #ifdef TRUNNEL_CHECK_ENCODED_LEN const ssize_t encoded_len = auth_challenge_cell_encoded_len(obj); #endif if (NULL != (msg = auth_challenge_cell_check(obj))) goto check_failed; #ifdef TRUNNEL_CHECK_ENCODED_LEN trunnel_assert(encoded_len >= 0); #endif /* Encode u8 challenge[32] */ trunnel_assert(written <= avail); if (avail - written < 32) goto truncated; memcpy(ptr, obj->challenge, 32); written += 32; ptr += 32; /* Encode u16 n_methods */ trunnel_assert(written <= avail); if (avail - written < 2) goto truncated; trunnel_set_uint16(ptr, trunnel_htons(obj->n_methods)); written += 2; ptr += 2; /* Encode u16 methods[n_methods] */ { unsigned idx; for (idx = 0; idx < TRUNNEL_DYNARRAY_LEN(&obj->methods); ++idx) { trunnel_assert(written <= avail); if (avail - written < 2) goto truncated; trunnel_set_uint16(ptr, trunnel_htons(TRUNNEL_DYNARRAY_GET(&obj->methods, idx))); written += 2; ptr += 2; } } trunnel_assert(ptr == output + written); #ifdef TRUNNEL_CHECK_ENCODED_LEN { trunnel_assert(encoded_len >= 0); trunnel_assert((size_t)encoded_len == written); } #endif return written; truncated: result = -2; goto fail; check_failed: (void)msg; result = -1; goto fail; fail: trunnel_assert(result < 0); return result; } /** As auth_challenge_cell_parse(), but do not allocate the output * object. */ static ssize_t auth_challenge_cell_parse_into(auth_challenge_cell_t *obj, const uint8_t *input, const size_t len_in) { const uint8_t *ptr = input; size_t remaining = len_in; ssize_t result = 0; (void)result; /* Parse u8 challenge[32] */ CHECK_REMAINING(32, truncated); memcpy(obj->challenge, ptr, 32); remaining -= 32; ptr += 32; /* Parse u16 n_methods */ CHECK_REMAINING(2, truncated); obj->n_methods = trunnel_ntohs(trunnel_get_uint16(ptr)); remaining -= 2; ptr += 2; /* Parse u16 methods[n_methods] */ TRUNNEL_DYNARRAY_EXPAND(uint16_t, &obj->methods, obj->n_methods, {}); { uint16_t elt; unsigned idx; for (idx = 0; idx < obj->n_methods; ++idx) { CHECK_REMAINING(2, truncated); elt = trunnel_ntohs(trunnel_get_uint16(ptr)); remaining -= 2; ptr += 2; TRUNNEL_DYNARRAY_ADD(uint16_t, &obj->methods, elt, {}); } } trunnel_assert(ptr + remaining == input + len_in); return len_in - remaining; truncated: return -2; trunnel_alloc_failed: return -1; } ssize_t auth_challenge_cell_parse(auth_challenge_cell_t **output, const uint8_t *input, const size_t len_in) { ssize_t result; *output = auth_challenge_cell_new(); if (NULL == *output) return -1; result = auth_challenge_cell_parse_into(*output, input, len_in); if (result < 0) { auth_challenge_cell_free(*output); *output = NULL; } return result; } auth_ctx_t * auth_ctx_new(void) { auth_ctx_t *val = trunnel_calloc(1, sizeof(auth_ctx_t)); if (NULL == val) return NULL; return val; } /** Release all storage held inside 'obj', but do not free 'obj'. */ static void auth_ctx_clear(auth_ctx_t *obj) { (void) obj; } void auth_ctx_free(auth_ctx_t *obj) { if (obj == NULL) return; auth_ctx_clear(obj); trunnel_memwipe(obj, sizeof(auth_ctx_t)); trunnel_free_(obj); } uint8_t auth_ctx_get_is_ed(auth_ctx_t *inp) { return inp->is_ed; } int auth_ctx_set_is_ed(auth_ctx_t *inp, uint8_t val) { inp->is_ed = val; return 0; } certs_cell_cert_t * certs_cell_cert_new(void) { certs_cell_cert_t *val = trunnel_calloc(1, sizeof(certs_cell_cert_t)); if (NULL == val) return NULL; return val; } /** Release all storage held inside 'obj', but do not free 'obj'. */ static void certs_cell_cert_clear(certs_cell_cert_t *obj) { (void) obj; TRUNNEL_DYNARRAY_WIPE(&obj->body); TRUNNEL_DYNARRAY_CLEAR(&obj->body); } void certs_cell_cert_free(certs_cell_cert_t *obj) { if (obj == NULL) return; certs_cell_cert_clear(obj); trunnel_memwipe(obj, sizeof(certs_cell_cert_t)); trunnel_free_(obj); } uint8_t certs_cell_cert_get_cert_type(certs_cell_cert_t *inp) { return inp->cert_type; } int certs_cell_cert_set_cert_type(certs_cell_cert_t *inp, uint8_t val) { inp->cert_type = val; return 0; } uint16_t certs_cell_cert_get_cert_len(certs_cell_cert_t *inp) { return inp->cert_len; } int certs_cell_cert_set_cert_len(certs_cell_cert_t *inp, uint16_t val) { inp->cert_len = val; return 0; } size_t certs_cell_cert_getlen_body(const certs_cell_cert_t *inp) { return TRUNNEL_DYNARRAY_LEN(&inp->body); } uint8_t certs_cell_cert_get_body(certs_cell_cert_t *inp, size_t idx) { return TRUNNEL_DYNARRAY_GET(&inp->body, idx); } int certs_cell_cert_set_body(certs_cell_cert_t *inp, size_t idx, uint8_t elt) { TRUNNEL_DYNARRAY_SET(&inp->body, idx, elt); return 0; } int certs_cell_cert_add_body(certs_cell_cert_t *inp, uint8_t elt) { #if SIZE_MAX >= UINT16_MAX if (inp->body.n_ == UINT16_MAX) goto trunnel_alloc_failed; #endif TRUNNEL_DYNARRAY_ADD(uint8_t, &inp->body, elt, {}); return 0; trunnel_alloc_failed: TRUNNEL_SET_ERROR_CODE(inp); return -1; } uint8_t * certs_cell_cert_getarray_body(certs_cell_cert_t *inp) { return inp->body.elts_; } int certs_cell_cert_setlen_body(certs_cell_cert_t *inp, size_t newlen) { uint8_t *newptr; #if UINT16_MAX < SIZE_MAX if (newlen > UINT16_MAX) goto trunnel_alloc_failed; #endif newptr = trunnel_dynarray_setlen(&inp->body.allocated_, &inp->body.n_, inp->body.elts_, newlen, sizeof(inp->body.elts_[0]), (trunnel_free_fn_t) NULL, &inp->trunnel_error_code_); if (newlen != 0 && newptr == NULL) goto trunnel_alloc_failed; inp->body.elts_ = newptr; return 0; trunnel_alloc_failed: TRUNNEL_SET_ERROR_CODE(inp); return -1; } const char * certs_cell_cert_check(const certs_cell_cert_t *obj) { if (obj == NULL) return "Object was NULL"; if (obj->trunnel_error_code_) return "A set function failed on this object"; if (TRUNNEL_DYNARRAY_LEN(&obj->body) != obj->cert_len) return "Length mismatch for body"; return NULL; } ssize_t certs_cell_cert_encoded_len(const certs_cell_cert_t *obj) { ssize_t result = 0; if (NULL != certs_cell_cert_check(obj)) return -1; /* Length of u8 cert_type */ result += 1; /* Length of u16 cert_len */ result += 2; /* Length of u8 body[cert_len] */ result += TRUNNEL_DYNARRAY_LEN(&obj->body); return result; } int certs_cell_cert_clear_errors(certs_cell_cert_t *obj) { int r = obj->trunnel_error_code_; obj->trunnel_error_code_ = 0; return r; } ssize_t certs_cell_cert_encode(uint8_t *output, const size_t avail, const certs_cell_cert_t *obj) { ssize_t result = 0; size_t written = 0; uint8_t *ptr = output; const char *msg; #ifdef TRUNNEL_CHECK_ENCODED_LEN const ssize_t encoded_len = certs_cell_cert_encoded_len(obj); #endif if (NULL != (msg = certs_cell_cert_check(obj))) goto check_failed; #ifdef TRUNNEL_CHECK_ENCODED_LEN trunnel_assert(encoded_len >= 0); #endif /* Encode u8 cert_type */ trunnel_assert(written <= avail); if (avail - written < 1) goto truncated; trunnel_set_uint8(ptr, (obj->cert_type)); written += 1; ptr += 1; /* Encode u16 cert_len */ trunnel_assert(written <= avail); if (avail - written < 2) goto truncated; trunnel_set_uint16(ptr, trunnel_htons(obj->cert_len)); written += 2; ptr += 2; /* Encode u8 body[cert_len] */ { size_t elt_len = TRUNNEL_DYNARRAY_LEN(&obj->body); trunnel_assert(obj->cert_len == elt_len); trunnel_assert(written <= avail); if (avail - written < elt_len) goto truncated; if (elt_len) memcpy(ptr, obj->body.elts_, elt_len); written += elt_len; ptr += elt_len; } trunnel_assert(ptr == output + written); #ifdef TRUNNEL_CHECK_ENCODED_LEN { trunnel_assert(encoded_len >= 0); trunnel_assert((size_t)encoded_len == written); } #endif return written; truncated: result = -2; goto fail; check_failed: (void)msg; result = -1; goto fail; fail: trunnel_assert(result < 0); return result; } /** As certs_cell_cert_parse(), but do not allocate the output object. */ static ssize_t certs_cell_cert_parse_into(certs_cell_cert_t *obj, const uint8_t *input, const size_t len_in) { const uint8_t *ptr = input; size_t remaining = len_in; ssize_t result = 0; (void)result; /* Parse u8 cert_type */ CHECK_REMAINING(1, truncated); obj->cert_type = (trunnel_get_uint8(ptr)); remaining -= 1; ptr += 1; /* Parse u16 cert_len */ CHECK_REMAINING(2, truncated); obj->cert_len = trunnel_ntohs(trunnel_get_uint16(ptr)); remaining -= 2; ptr += 2; /* Parse u8 body[cert_len] */ CHECK_REMAINING(obj->cert_len, truncated); TRUNNEL_DYNARRAY_EXPAND(uint8_t, &obj->body, obj->cert_len, {}); obj->body.n_ = obj->cert_len; if (obj->cert_len) memcpy(obj->body.elts_, ptr, obj->cert_len); ptr += obj->cert_len; remaining -= obj->cert_len; trunnel_assert(ptr + remaining == input + len_in); return len_in - remaining; truncated: return -2; trunnel_alloc_failed: return -1; } ssize_t certs_cell_cert_parse(certs_cell_cert_t **output, const uint8_t *input, const size_t len_in) { ssize_t result; *output = certs_cell_cert_new(); if (NULL == *output) return -1; result = certs_cell_cert_parse_into(*output, input, len_in); if (result < 0) { certs_cell_cert_free(*output); *output = NULL; } return result; } rsa_ed_crosscert_t * rsa_ed_crosscert_new(void) { rsa_ed_crosscert_t *val = trunnel_calloc(1, sizeof(rsa_ed_crosscert_t)); if (NULL == val) return NULL; return val; } /** Release all storage held inside 'obj', but do not free 'obj'. */ static void rsa_ed_crosscert_clear(rsa_ed_crosscert_t *obj) { (void) obj; TRUNNEL_DYNARRAY_WIPE(&obj->sig); TRUNNEL_DYNARRAY_CLEAR(&obj->sig); } void rsa_ed_crosscert_free(rsa_ed_crosscert_t *obj) { if (obj == NULL) return; rsa_ed_crosscert_clear(obj); trunnel_memwipe(obj, sizeof(rsa_ed_crosscert_t)); trunnel_free_(obj); } size_t rsa_ed_crosscert_getlen_ed_key(const rsa_ed_crosscert_t *inp) { (void)inp; return 32; } uint8_t rsa_ed_crosscert_get_ed_key(const rsa_ed_crosscert_t *inp, size_t idx) { trunnel_assert(idx < 32); return inp->ed_key[idx]; } int rsa_ed_crosscert_set_ed_key(rsa_ed_crosscert_t *inp, size_t idx, uint8_t elt) { trunnel_assert(idx < 32); inp->ed_key[idx] = elt; return 0; } uint8_t * rsa_ed_crosscert_getarray_ed_key(rsa_ed_crosscert_t *inp) { return inp->ed_key; } uint32_t rsa_ed_crosscert_get_expiration(rsa_ed_crosscert_t *inp) { return inp->expiration; } int rsa_ed_crosscert_set_expiration(rsa_ed_crosscert_t *inp, uint32_t val) { inp->expiration = val; return 0; } const uint8_t * rsa_ed_crosscert_get_end_of_signed(const rsa_ed_crosscert_t *inp) { return inp->end_of_signed; } uint8_t rsa_ed_crosscert_get_sig_len(rsa_ed_crosscert_t *inp) { return inp->sig_len; } int rsa_ed_crosscert_set_sig_len(rsa_ed_crosscert_t *inp, uint8_t val) { inp->sig_len = val; return 0; } size_t rsa_ed_crosscert_getlen_sig(const rsa_ed_crosscert_t *inp) { return TRUNNEL_DYNARRAY_LEN(&inp->sig); } uint8_t rsa_ed_crosscert_get_sig(rsa_ed_crosscert_t *inp, size_t idx) { return TRUNNEL_DYNARRAY_GET(&inp->sig, idx); } int rsa_ed_crosscert_set_sig(rsa_ed_crosscert_t *inp, size_t idx, uint8_t elt) { TRUNNEL_DYNARRAY_SET(&inp->sig, idx, elt); return 0; } int rsa_ed_crosscert_add_sig(rsa_ed_crosscert_t *inp, uint8_t elt) { #if SIZE_MAX >= UINT8_MAX if (inp->sig.n_ == UINT8_MAX) goto trunnel_alloc_failed; #endif TRUNNEL_DYNARRAY_ADD(uint8_t, &inp->sig, elt, {}); return 0; trunnel_alloc_failed: TRUNNEL_SET_ERROR_CODE(inp); return -1; } uint8_t * rsa_ed_crosscert_getarray_sig(rsa_ed_crosscert_t *inp) { return inp->sig.elts_; } int rsa_ed_crosscert_setlen_sig(rsa_ed_crosscert_t *inp, size_t newlen) { uint8_t *newptr; #if UINT8_MAX < SIZE_MAX if (newlen > UINT8_MAX) goto trunnel_alloc_failed; #endif newptr = trunnel_dynarray_setlen(&inp->sig.allocated_, &inp->sig.n_, inp->sig.elts_, newlen, sizeof(inp->sig.elts_[0]), (trunnel_free_fn_t) NULL, &inp->trunnel_error_code_); if (newlen != 0 && newptr == NULL) goto trunnel_alloc_failed; inp->sig.elts_ = newptr; return 0; trunnel_alloc_failed: TRUNNEL_SET_ERROR_CODE(inp); return -1; } const char * rsa_ed_crosscert_check(const rsa_ed_crosscert_t *obj) { if (obj == NULL) return "Object was NULL"; if (obj->trunnel_error_code_) return "A set function failed on this object"; if (TRUNNEL_DYNARRAY_LEN(&obj->sig) != obj->sig_len) return "Length mismatch for sig"; return NULL; } ssize_t rsa_ed_crosscert_encoded_len(const rsa_ed_crosscert_t *obj) { ssize_t result = 0; if (NULL != rsa_ed_crosscert_check(obj)) return -1; /* Length of u8 ed_key[32] */ result += 32; /* Length of u32 expiration */ result += 4; /* Length of u8 sig_len */ result += 1; /* Length of u8 sig[sig_len] */ result += TRUNNEL_DYNARRAY_LEN(&obj->sig); return result; } int rsa_ed_crosscert_clear_errors(rsa_ed_crosscert_t *obj) { int r = obj->trunnel_error_code_; obj->trunnel_error_code_ = 0; return r; } ssize_t rsa_ed_crosscert_encode(uint8_t *output, const size_t avail, const rsa_ed_crosscert_t *obj) { ssize_t result = 0; size_t written = 0; uint8_t *ptr = output; const char *msg; #ifdef TRUNNEL_CHECK_ENCODED_LEN const ssize_t encoded_len = rsa_ed_crosscert_encoded_len(obj); #endif if (NULL != (msg = rsa_ed_crosscert_check(obj))) goto check_failed; #ifdef TRUNNEL_CHECK_ENCODED_LEN trunnel_assert(encoded_len >= 0); #endif /* Encode u8 ed_key[32] */ trunnel_assert(written <= avail); if (avail - written < 32) goto truncated; memcpy(ptr, obj->ed_key, 32); written += 32; ptr += 32; /* Encode u32 expiration */ trunnel_assert(written <= avail); if (avail - written < 4) goto truncated; trunnel_set_uint32(ptr, trunnel_htonl(obj->expiration)); written += 4; ptr += 4; /* Encode u8 sig_len */ trunnel_assert(written <= avail); if (avail - written < 1) goto truncated; trunnel_set_uint8(ptr, (obj->sig_len)); written += 1; ptr += 1; /* Encode u8 sig[sig_len] */ { size_t elt_len = TRUNNEL_DYNARRAY_LEN(&obj->sig); trunnel_assert(obj->sig_len == elt_len); trunnel_assert(written <= avail); if (avail - written < elt_len) goto truncated; if (elt_len) memcpy(ptr, obj->sig.elts_, elt_len); written += elt_len; ptr += elt_len; } trunnel_assert(ptr == output + written); #ifdef TRUNNEL_CHECK_ENCODED_LEN { trunnel_assert(encoded_len >= 0); trunnel_assert((size_t)encoded_len == written); } #endif return written; truncated: result = -2; goto fail; check_failed: (void)msg; result = -1; goto fail; fail: trunnel_assert(result < 0); return result; } /** As rsa_ed_crosscert_parse(), but do not allocate the output * object. */ static ssize_t rsa_ed_crosscert_parse_into(rsa_ed_crosscert_t *obj, const uint8_t *input, const size_t len_in) { const uint8_t *ptr = input; size_t remaining = len_in; ssize_t result = 0; (void)result; /* Parse u8 ed_key[32] */ CHECK_REMAINING(32, truncated); memcpy(obj->ed_key, ptr, 32); remaining -= 32; ptr += 32; /* Parse u32 expiration */ CHECK_REMAINING(4, truncated); obj->expiration = trunnel_ntohl(trunnel_get_uint32(ptr)); remaining -= 4; ptr += 4; obj->end_of_signed = ptr; /* Parse u8 sig_len */ CHECK_REMAINING(1, truncated); obj->sig_len = (trunnel_get_uint8(ptr)); remaining -= 1; ptr += 1; /* Parse u8 sig[sig_len] */ CHECK_REMAINING(obj->sig_len, truncated); TRUNNEL_DYNARRAY_EXPAND(uint8_t, &obj->sig, obj->sig_len, {}); obj->sig.n_ = obj->sig_len; if (obj->sig_len) memcpy(obj->sig.elts_, ptr, obj->sig_len); ptr += obj->sig_len; remaining -= obj->sig_len; trunnel_assert(ptr + remaining == input + len_in); return len_in - remaining; truncated: return -2; trunnel_alloc_failed: return -1; } ssize_t rsa_ed_crosscert_parse(rsa_ed_crosscert_t **output, const uint8_t *input, const size_t len_in) { ssize_t result; *output = rsa_ed_crosscert_new(); if (NULL == *output) return -1; result = rsa_ed_crosscert_parse_into(*output, input, len_in); if (result < 0) { rsa_ed_crosscert_free(*output); *output = NULL; } return result; } auth1_t * auth1_new(void) { auth1_t *val = trunnel_calloc(1, sizeof(auth1_t)); if (NULL == val) return NULL; return val; } /** Release all storage held inside 'obj', but do not free 'obj'. */ static void auth1_clear(auth1_t *obj) { (void) obj; TRUNNEL_DYNARRAY_WIPE(&obj->sig); TRUNNEL_DYNARRAY_CLEAR(&obj->sig); } void auth1_free(auth1_t *obj) { if (obj == NULL) return; auth1_clear(obj); trunnel_memwipe(obj, sizeof(auth1_t)); trunnel_free_(obj); } size_t auth1_getlen_type(const auth1_t *inp) { (void)inp; return 8; } uint8_t auth1_get_type(const auth1_t *inp, size_t idx) { trunnel_assert(idx < 8); return inp->type[idx]; } int auth1_set_type(auth1_t *inp, size_t idx, uint8_t elt) { trunnel_assert(idx < 8); inp->type[idx] = elt; return 0; } uint8_t * auth1_getarray_type(auth1_t *inp) { return inp->type; } size_t auth1_getlen_cid(const auth1_t *inp) { (void)inp; return 32; } uint8_t auth1_get_cid(const auth1_t *inp, size_t idx) { trunnel_assert(idx < 32); return inp->cid[idx]; } int auth1_set_cid(auth1_t *inp, size_t idx, uint8_t elt) { trunnel_assert(idx < 32); inp->cid[idx] = elt; return 0; } uint8_t * auth1_getarray_cid(auth1_t *inp) { return inp->cid; } size_t auth1_getlen_sid(const auth1_t *inp) { (void)inp; return 32; } uint8_t auth1_get_sid(const auth1_t *inp, size_t idx) { trunnel_assert(idx < 32); return inp->sid[idx]; } int auth1_set_sid(auth1_t *inp, size_t idx, uint8_t elt) { trunnel_assert(idx < 32); inp->sid[idx] = elt; return 0; } uint8_t * auth1_getarray_sid(auth1_t *inp) { return inp->sid; } size_t auth1_getlen_u1_cid_ed(const auth1_t *inp) { (void)inp; return 32; } uint8_t auth1_get_u1_cid_ed(const auth1_t *inp, size_t idx) { trunnel_assert(idx < 32); return inp->u1_cid_ed[idx]; } int auth1_set_u1_cid_ed(auth1_t *inp, size_t idx, uint8_t elt) { trunnel_assert(idx < 32); inp->u1_cid_ed[idx] = elt; return 0; } uint8_t * auth1_getarray_u1_cid_ed(auth1_t *inp) { return inp->u1_cid_ed; } size_t auth1_getlen_u1_sid_ed(const auth1_t *inp) { (void)inp; return 32; } uint8_t auth1_get_u1_sid_ed(const auth1_t *inp, size_t idx) { trunnel_assert(idx < 32); return inp->u1_sid_ed[idx]; } int auth1_set_u1_sid_ed(auth1_t *inp, size_t idx, uint8_t elt) { trunnel_assert(idx < 32); inp->u1_sid_ed[idx] = elt; return 0; } uint8_t * auth1_getarray_u1_sid_ed(auth1_t *inp) { return inp->u1_sid_ed; } size_t auth1_getlen_slog(const auth1_t *inp) { (void)inp; return 32; } uint8_t auth1_get_slog(const auth1_t *inp, size_t idx) { trunnel_assert(idx < 32); return inp->slog[idx]; } int auth1_set_slog(auth1_t *inp, size_t idx, uint8_t elt) { trunnel_assert(idx < 32); inp->slog[idx] = elt; return 0; } uint8_t * auth1_getarray_slog(auth1_t *inp) { return inp->slog; } size_t auth1_getlen_clog(const auth1_t *inp) { (void)inp; return 32; } uint8_t auth1_get_clog(const auth1_t *inp, size_t idx) { trunnel_assert(idx < 32); return inp->clog[idx]; } int auth1_set_clog(auth1_t *inp, size_t idx, uint8_t elt) { trunnel_assert(idx < 32); inp->clog[idx] = elt; return 0; } uint8_t * auth1_getarray_clog(auth1_t *inp) { return inp->clog; } size_t auth1_getlen_scert(const auth1_t *inp) { (void)inp; return 32; } uint8_t auth1_get_scert(const auth1_t *inp, size_t idx) { trunnel_assert(idx < 32); return inp->scert[idx]; } int auth1_set_scert(auth1_t *inp, size_t idx, uint8_t elt) { trunnel_assert(idx < 32); inp->scert[idx] = elt; return 0; } uint8_t * auth1_getarray_scert(auth1_t *inp) { return inp->scert; } size_t auth1_getlen_tlssecrets(const auth1_t *inp) { (void)inp; return 32; } uint8_t auth1_get_tlssecrets(const auth1_t *inp, size_t idx) { trunnel_assert(idx < 32); return inp->tlssecrets[idx]; } int auth1_set_tlssecrets(auth1_t *inp, size_t idx, uint8_t elt) { trunnel_assert(idx < 32); inp->tlssecrets[idx] = elt; return 0; } uint8_t * auth1_getarray_tlssecrets(auth1_t *inp) { return inp->tlssecrets; } const uint8_t * auth1_get_end_of_fixed_part(const auth1_t *inp) { return inp->end_of_fixed_part; } size_t auth1_getlen_rand(const auth1_t *inp) { (void)inp; return 24; } uint8_t auth1_get_rand(const auth1_t *inp, size_t idx) { trunnel_assert(idx < 24); return inp->rand[idx]; } int auth1_set_rand(auth1_t *inp, size_t idx, uint8_t elt) { trunnel_assert(idx < 24); inp->rand[idx] = elt; return 0; } uint8_t * auth1_getarray_rand(auth1_t *inp) { return inp->rand; } const uint8_t * auth1_get_end_of_signed(const auth1_t *inp) { return inp->end_of_signed; } size_t auth1_getlen_sig(const auth1_t *inp) { return TRUNNEL_DYNARRAY_LEN(&inp->sig); } uint8_t auth1_get_sig(auth1_t *inp, size_t idx) { return TRUNNEL_DYNARRAY_GET(&inp->sig, idx); } int auth1_set_sig(auth1_t *inp, size_t idx, uint8_t elt) { TRUNNEL_DYNARRAY_SET(&inp->sig, idx, elt); return 0; } int auth1_add_sig(auth1_t *inp, uint8_t elt) { TRUNNEL_DYNARRAY_ADD(uint8_t, &inp->sig, elt, {}); return 0; trunnel_alloc_failed: TRUNNEL_SET_ERROR_CODE(inp); return -1; } uint8_t * auth1_getarray_sig(auth1_t *inp) { return inp->sig.elts_; } int auth1_setlen_sig(auth1_t *inp, size_t newlen) { uint8_t *newptr; newptr = trunnel_dynarray_setlen(&inp->sig.allocated_, &inp->sig.n_, inp->sig.elts_, newlen, sizeof(inp->sig.elts_[0]), (trunnel_free_fn_t) NULL, &inp->trunnel_error_code_); if (newlen != 0 && newptr == NULL) goto trunnel_alloc_failed; inp->sig.elts_ = newptr; return 0; trunnel_alloc_failed: TRUNNEL_SET_ERROR_CODE(inp); return -1; } const char * auth1_check(const auth1_t *obj, const auth_ctx_t *auth_ctx_ctx) { if (obj == NULL) return "Object was NULL"; if (obj->trunnel_error_code_) return "A set function failed on this object"; if (auth_ctx_ctx == NULL) return "Context was NULL"; switch (auth_ctx_ctx->is_ed) { case 0: break; case 1: break; default: return "Bad tag for union"; break; } return NULL; } ssize_t auth1_encoded_len(const auth1_t *obj, const auth_ctx_t *auth_ctx_ctx) { ssize_t result = 0; if (NULL != auth1_check(obj, auth_ctx_ctx)) return -1; /* Length of u8 type[8] */ result += 8; /* Length of u8 cid[32] */ result += 32; /* Length of u8 sid[32] */ result += 32; switch (auth_ctx_ctx->is_ed) { case 0: break; case 1: /* Length of u8 u1_cid_ed[32] */ result += 32; /* Length of u8 u1_sid_ed[32] */ result += 32; break; default: trunnel_assert(0); break; } /* Length of u8 slog[32] */ result += 32; /* Length of u8 clog[32] */ result += 32; /* Length of u8 scert[32] */ result += 32; /* Length of u8 tlssecrets[32] */ result += 32; /* Length of u8 rand[24] */ result += 24; /* Length of u8 sig[] */ result += TRUNNEL_DYNARRAY_LEN(&obj->sig); return result; } int auth1_clear_errors(auth1_t *obj) { int r = obj->trunnel_error_code_; obj->trunnel_error_code_ = 0; return r; } ssize_t auth1_encode(uint8_t *output, const size_t avail, const auth1_t *obj, const auth_ctx_t *auth_ctx_ctx) { ssize_t result = 0; size_t written = 0; uint8_t *ptr = output; const char *msg; #ifdef TRUNNEL_CHECK_ENCODED_LEN const ssize_t encoded_len = auth1_encoded_len(obj, auth_ctx_ctx); #endif if (NULL != (msg = auth1_check(obj, auth_ctx_ctx))) goto check_failed; #ifdef TRUNNEL_CHECK_ENCODED_LEN trunnel_assert(encoded_len >= 0); #endif /* Encode u8 type[8] */ trunnel_assert(written <= avail); if (avail - written < 8) goto truncated; memcpy(ptr, obj->type, 8); written += 8; ptr += 8; /* Encode u8 cid[32] */ trunnel_assert(written <= avail); if (avail - written < 32) goto truncated; memcpy(ptr, obj->cid, 32); written += 32; ptr += 32; /* Encode u8 sid[32] */ trunnel_assert(written <= avail); if (avail - written < 32) goto truncated; memcpy(ptr, obj->sid, 32); written += 32; ptr += 32; /* Encode union u1[auth_ctx.is_ed] */ trunnel_assert(written <= avail); switch (auth_ctx_ctx->is_ed) { case 0: break; case 1: /* Encode u8 u1_cid_ed[32] */ trunnel_assert(written <= avail); if (avail - written < 32) goto truncated; memcpy(ptr, obj->u1_cid_ed, 32); written += 32; ptr += 32; /* Encode u8 u1_sid_ed[32] */ trunnel_assert(written <= avail); if (avail - written < 32) goto truncated; memcpy(ptr, obj->u1_sid_ed, 32); written += 32; ptr += 32; break; default: trunnel_assert(0); break; } /* Encode u8 slog[32] */ trunnel_assert(written <= avail); if (avail - written < 32) goto truncated; memcpy(ptr, obj->slog, 32); written += 32; ptr += 32; /* Encode u8 clog[32] */ trunnel_assert(written <= avail); if (avail - written < 32) goto truncated; memcpy(ptr, obj->clog, 32); written += 32; ptr += 32; /* Encode u8 scert[32] */ trunnel_assert(written <= avail); if (avail - written < 32) goto truncated; memcpy(ptr, obj->scert, 32); written += 32; ptr += 32; /* Encode u8 tlssecrets[32] */ trunnel_assert(written <= avail); if (avail - written < 32) goto truncated; memcpy(ptr, obj->tlssecrets, 32); written += 32; ptr += 32; /* Encode u8 rand[24] */ trunnel_assert(written <= avail); if (avail - written < 24) goto truncated; memcpy(ptr, obj->rand, 24); written += 24; ptr += 24; /* Encode u8 sig[] */ { size_t elt_len = TRUNNEL_DYNARRAY_LEN(&obj->sig); trunnel_assert(written <= avail); if (avail - written < elt_len) goto truncated; if (elt_len) memcpy(ptr, obj->sig.elts_, elt_len); written += elt_len; ptr += elt_len; } trunnel_assert(ptr == output + written); #ifdef TRUNNEL_CHECK_ENCODED_LEN { trunnel_assert(encoded_len >= 0); trunnel_assert((size_t)encoded_len == written); } #endif return written; truncated: result = -2; goto fail; check_failed: (void)msg; result = -1; goto fail; fail: trunnel_assert(result < 0); return result; } /** As auth1_parse(), but do not allocate the output object. */ static ssize_t auth1_parse_into(auth1_t *obj, const uint8_t *input, const size_t len_in, const auth_ctx_t *auth_ctx_ctx) { const uint8_t *ptr = input; size_t remaining = len_in; ssize_t result = 0; (void)result; if (auth_ctx_ctx == NULL) return -1; /* Parse u8 type[8] */ CHECK_REMAINING(8, truncated); memcpy(obj->type, ptr, 8); remaining -= 8; ptr += 8; /* Parse u8 cid[32] */ CHECK_REMAINING(32, truncated); memcpy(obj->cid, ptr, 32); remaining -= 32; ptr += 32; /* Parse u8 sid[32] */ CHECK_REMAINING(32, truncated); memcpy(obj->sid, ptr, 32); remaining -= 32; ptr += 32; /* Parse union u1[auth_ctx.is_ed] */ switch (auth_ctx_ctx->is_ed) { case 0: break; case 1: /* Parse u8 u1_cid_ed[32] */ CHECK_REMAINING(32, truncated); memcpy(obj->u1_cid_ed, ptr, 32); remaining -= 32; ptr += 32; /* Parse u8 u1_sid_ed[32] */ CHECK_REMAINING(32, truncated); memcpy(obj->u1_sid_ed, ptr, 32); remaining -= 32; ptr += 32; break; default: goto fail; break; } /* Parse u8 slog[32] */ CHECK_REMAINING(32, truncated); memcpy(obj->slog, ptr, 32); remaining -= 32; ptr += 32; /* Parse u8 clog[32] */ CHECK_REMAINING(32, truncated); memcpy(obj->clog, ptr, 32); remaining -= 32; ptr += 32; /* Parse u8 scert[32] */ CHECK_REMAINING(32, truncated); memcpy(obj->scert, ptr, 32); remaining -= 32; ptr += 32; /* Parse u8 tlssecrets[32] */ CHECK_REMAINING(32, truncated); memcpy(obj->tlssecrets, ptr, 32); remaining -= 32; ptr += 32; obj->end_of_fixed_part = ptr; /* Parse u8 rand[24] */ CHECK_REMAINING(24, truncated); memcpy(obj->rand, ptr, 24); remaining -= 24; ptr += 24; obj->end_of_signed = ptr; /* Parse u8 sig[] */ TRUNNEL_DYNARRAY_EXPAND(uint8_t, &obj->sig, remaining, {}); obj->sig.n_ = remaining; if (remaining) memcpy(obj->sig.elts_, ptr, remaining); ptr += remaining; remaining -= remaining; trunnel_assert(ptr + remaining == input + len_in); return len_in - remaining; truncated: return -2; trunnel_alloc_failed: return -1; fail: result = -1; return result; } ssize_t auth1_parse(auth1_t **output, const uint8_t *input, const size_t len_in, const auth_ctx_t *auth_ctx_ctx) { ssize_t result; *output = auth1_new(); if (NULL == *output) return -1; result = auth1_parse_into(*output, input, len_in, auth_ctx_ctx); if (result < 0) { auth1_free(*output); *output = NULL; } return result; } certs_cell_t * certs_cell_new(void) { certs_cell_t *val = trunnel_calloc(1, sizeof(certs_cell_t)); if (NULL == val) return NULL; return val; } /** Release all storage held inside 'obj', but do not free 'obj'. */ static void certs_cell_clear(certs_cell_t *obj) { (void) obj; { unsigned idx; for (idx = 0; idx < TRUNNEL_DYNARRAY_LEN(&obj->certs); ++idx) { certs_cell_cert_free(TRUNNEL_DYNARRAY_GET(&obj->certs, idx)); } } TRUNNEL_DYNARRAY_WIPE(&obj->certs); TRUNNEL_DYNARRAY_CLEAR(&obj->certs); } void certs_cell_free(certs_cell_t *obj) { if (obj == NULL) return; certs_cell_clear(obj); trunnel_memwipe(obj, sizeof(certs_cell_t)); trunnel_free_(obj); } uint8_t certs_cell_get_n_certs(certs_cell_t *inp) { return inp->n_certs; } int certs_cell_set_n_certs(certs_cell_t *inp, uint8_t val) { inp->n_certs = val; return 0; } size_t certs_cell_getlen_certs(const certs_cell_t *inp) { return TRUNNEL_DYNARRAY_LEN(&inp->certs); } struct certs_cell_cert_st * certs_cell_get_certs(certs_cell_t *inp, size_t idx) { return TRUNNEL_DYNARRAY_GET(&inp->certs, idx); } int certs_cell_set_certs(certs_cell_t *inp, size_t idx, struct certs_cell_cert_st * elt) { certs_cell_cert_t *oldval = TRUNNEL_DYNARRAY_GET(&inp->certs, idx); if (oldval && oldval != elt) certs_cell_cert_free(oldval); return certs_cell_set0_certs(inp, idx, elt); } int certs_cell_set0_certs(certs_cell_t *inp, size_t idx, struct certs_cell_cert_st * elt) { TRUNNEL_DYNARRAY_SET(&inp->certs, idx, elt); return 0; } int certs_cell_add_certs(certs_cell_t *inp, struct certs_cell_cert_st * elt) { #if SIZE_MAX >= UINT8_MAX if (inp->certs.n_ == UINT8_MAX) goto trunnel_alloc_failed; #endif TRUNNEL_DYNARRAY_ADD(struct certs_cell_cert_st *, &inp->certs, elt, {}); return 0; trunnel_alloc_failed: TRUNNEL_SET_ERROR_CODE(inp); return -1; } struct certs_cell_cert_st * * certs_cell_getarray_certs(certs_cell_t *inp) { return inp->certs.elts_; } int certs_cell_setlen_certs(certs_cell_t *inp, size_t newlen) { struct certs_cell_cert_st * *newptr; #if UINT8_MAX < SIZE_MAX if (newlen > UINT8_MAX) goto trunnel_alloc_failed; #endif newptr = trunnel_dynarray_setlen(&inp->certs.allocated_, &inp->certs.n_, inp->certs.elts_, newlen, sizeof(inp->certs.elts_[0]), (trunnel_free_fn_t) certs_cell_cert_free, &inp->trunnel_error_code_); if (newlen != 0 && newptr == NULL) goto trunnel_alloc_failed; inp->certs.elts_ = newptr; return 0; trunnel_alloc_failed: TRUNNEL_SET_ERROR_CODE(inp); return -1; } const char * certs_cell_check(const certs_cell_t *obj) { if (obj == NULL) return "Object was NULL"; if (obj->trunnel_error_code_) return "A set function failed on this object"; { const char *msg; unsigned idx; for (idx = 0; idx < TRUNNEL_DYNARRAY_LEN(&obj->certs); ++idx) { if (NULL != (msg = certs_cell_cert_check(TRUNNEL_DYNARRAY_GET(&obj->certs, idx)))) return msg; } } if (TRUNNEL_DYNARRAY_LEN(&obj->certs) != obj->n_certs) return "Length mismatch for certs"; return NULL; } ssize_t certs_cell_encoded_len(const certs_cell_t *obj) { ssize_t result = 0; if (NULL != certs_cell_check(obj)) return -1; /* Length of u8 n_certs */ result += 1; /* Length of struct certs_cell_cert certs[n_certs] */ { unsigned idx; for (idx = 0; idx < TRUNNEL_DYNARRAY_LEN(&obj->certs); ++idx) { result += certs_cell_cert_encoded_len(TRUNNEL_DYNARRAY_GET(&obj->certs, idx)); } } return result; } int certs_cell_clear_errors(certs_cell_t *obj) { int r = obj->trunnel_error_code_; obj->trunnel_error_code_ = 0; return r; } ssize_t certs_cell_encode(uint8_t *output, const size_t avail, const certs_cell_t *obj) { ssize_t result = 0; size_t written = 0; uint8_t *ptr = output; const char *msg; #ifdef TRUNNEL_CHECK_ENCODED_LEN const ssize_t encoded_len = certs_cell_encoded_len(obj); #endif if (NULL != (msg = certs_cell_check(obj))) goto check_failed; #ifdef TRUNNEL_CHECK_ENCODED_LEN trunnel_assert(encoded_len >= 0); #endif /* Encode u8 n_certs */ trunnel_assert(written <= avail); if (avail - written < 1) goto truncated; trunnel_set_uint8(ptr, (obj->n_certs)); written += 1; ptr += 1; /* Encode struct certs_cell_cert certs[n_certs] */ { unsigned idx; for (idx = 0; idx < TRUNNEL_DYNARRAY_LEN(&obj->certs); ++idx) { trunnel_assert(written <= avail); result = certs_cell_cert_encode(ptr, avail - written, TRUNNEL_DYNARRAY_GET(&obj->certs, idx)); if (result < 0) goto fail; /* XXXXXXX !*/ written += result; ptr += result; } } trunnel_assert(ptr == output + written); #ifdef TRUNNEL_CHECK_ENCODED_LEN { trunnel_assert(encoded_len >= 0); trunnel_assert((size_t)encoded_len == written); } #endif return written; truncated: result = -2; goto fail; check_failed: (void)msg; result = -1; goto fail; fail: trunnel_assert(result < 0); return result; } /** As certs_cell_parse(), but do not allocate the output object. */ static ssize_t certs_cell_parse_into(certs_cell_t *obj, const uint8_t *input, const size_t len_in) { const uint8_t *ptr = input; size_t remaining = len_in; ssize_t result = 0; (void)result; /* Parse u8 n_certs */ CHECK_REMAINING(1, truncated); obj->n_certs = (trunnel_get_uint8(ptr)); remaining -= 1; ptr += 1; /* Parse struct certs_cell_cert certs[n_certs] */ TRUNNEL_DYNARRAY_EXPAND(certs_cell_cert_t *, &obj->certs, obj->n_certs, {}); { certs_cell_cert_t * elt; unsigned idx; for (idx = 0; idx < obj->n_certs; ++idx) { result = certs_cell_cert_parse(&elt, ptr, remaining); if (result < 0) goto relay_fail; trunnel_assert((size_t)result <= remaining); remaining -= result; ptr += result; TRUNNEL_DYNARRAY_ADD(certs_cell_cert_t *, &obj->certs, elt, {certs_cell_cert_free(elt);}); } } trunnel_assert(ptr + remaining == input + len_in); return len_in - remaining; truncated: return -2; relay_fail: trunnel_assert(result < 0); return result; trunnel_alloc_failed: return -1; } ssize_t certs_cell_parse(certs_cell_t **output, const uint8_t *input, const size_t len_in) { ssize_t result; *output = certs_cell_new(); if (NULL == *output) return -1; result = certs_cell_parse_into(*output, input, len_in); if (result < 0) { certs_cell_free(*output); *output = NULL; } return result; } tor-0.2.9.10/src/trunnel/pwbox.c0000644000175000017500000003020613051624457013257 00000000000000/* pwbox.c -- generated by Trunnel v1.4.6. * https://gitweb.torproject.org/trunnel.git * You probably shouldn't edit this file. */ #include #include "trunnel-impl.h" #include "pwbox.h" #define TRUNNEL_SET_ERROR_CODE(obj) \ do { \ (obj)->trunnel_error_code_ = 1; \ } while (0) #if defined(__COVERITY__) || defined(__clang_analyzer__) /* If we're runnning a static analysis tool, we don't want it to complain * that some of our remaining-bytes checks are dead-code. */ int pwbox_deadcode_dummy__ = 0; #define OR_DEADCODE_DUMMY || pwbox_deadcode_dummy__ #else #define OR_DEADCODE_DUMMY #endif #define CHECK_REMAINING(nbytes, label) \ do { \ if (remaining < (nbytes) OR_DEADCODE_DUMMY) { \ goto label; \ } \ } while (0) pwbox_encoded_t * pwbox_encoded_new(void) { pwbox_encoded_t *val = trunnel_calloc(1, sizeof(pwbox_encoded_t)); if (NULL == val) return NULL; val->fixedbytes0 = PWBOX0_CONST0; val->fixedbytes1 = PWBOX0_CONST1; return val; } /** Release all storage held inside 'obj', but do not free 'obj'. */ static void pwbox_encoded_clear(pwbox_encoded_t *obj) { (void) obj; TRUNNEL_DYNARRAY_WIPE(&obj->skey_header); TRUNNEL_DYNARRAY_CLEAR(&obj->skey_header); TRUNNEL_DYNARRAY_WIPE(&obj->data); TRUNNEL_DYNARRAY_CLEAR(&obj->data); } void pwbox_encoded_free(pwbox_encoded_t *obj) { if (obj == NULL) return; pwbox_encoded_clear(obj); trunnel_memwipe(obj, sizeof(pwbox_encoded_t)); trunnel_free_(obj); } uint32_t pwbox_encoded_get_fixedbytes0(pwbox_encoded_t *inp) { return inp->fixedbytes0; } int pwbox_encoded_set_fixedbytes0(pwbox_encoded_t *inp, uint32_t val) { if (! ((val == PWBOX0_CONST0))) { TRUNNEL_SET_ERROR_CODE(inp); return -1; } inp->fixedbytes0 = val; return 0; } uint32_t pwbox_encoded_get_fixedbytes1(pwbox_encoded_t *inp) { return inp->fixedbytes1; } int pwbox_encoded_set_fixedbytes1(pwbox_encoded_t *inp, uint32_t val) { if (! ((val == PWBOX0_CONST1))) { TRUNNEL_SET_ERROR_CODE(inp); return -1; } inp->fixedbytes1 = val; return 0; } uint8_t pwbox_encoded_get_header_len(pwbox_encoded_t *inp) { return inp->header_len; } int pwbox_encoded_set_header_len(pwbox_encoded_t *inp, uint8_t val) { inp->header_len = val; return 0; } size_t pwbox_encoded_getlen_skey_header(const pwbox_encoded_t *inp) { return TRUNNEL_DYNARRAY_LEN(&inp->skey_header); } uint8_t pwbox_encoded_get_skey_header(pwbox_encoded_t *inp, size_t idx) { return TRUNNEL_DYNARRAY_GET(&inp->skey_header, idx); } int pwbox_encoded_set_skey_header(pwbox_encoded_t *inp, size_t idx, uint8_t elt) { TRUNNEL_DYNARRAY_SET(&inp->skey_header, idx, elt); return 0; } int pwbox_encoded_add_skey_header(pwbox_encoded_t *inp, uint8_t elt) { #if SIZE_MAX >= UINT8_MAX if (inp->skey_header.n_ == UINT8_MAX) goto trunnel_alloc_failed; #endif TRUNNEL_DYNARRAY_ADD(uint8_t, &inp->skey_header, elt, {}); return 0; trunnel_alloc_failed: TRUNNEL_SET_ERROR_CODE(inp); return -1; } uint8_t * pwbox_encoded_getarray_skey_header(pwbox_encoded_t *inp) { return inp->skey_header.elts_; } int pwbox_encoded_setlen_skey_header(pwbox_encoded_t *inp, size_t newlen) { uint8_t *newptr; #if UINT8_MAX < SIZE_MAX if (newlen > UINT8_MAX) goto trunnel_alloc_failed; #endif newptr = trunnel_dynarray_setlen(&inp->skey_header.allocated_, &inp->skey_header.n_, inp->skey_header.elts_, newlen, sizeof(inp->skey_header.elts_[0]), (trunnel_free_fn_t) NULL, &inp->trunnel_error_code_); if (newlen != 0 && newptr == NULL) goto trunnel_alloc_failed; inp->skey_header.elts_ = newptr; return 0; trunnel_alloc_failed: TRUNNEL_SET_ERROR_CODE(inp); return -1; } size_t pwbox_encoded_getlen_iv(const pwbox_encoded_t *inp) { (void)inp; return 16; } uint8_t pwbox_encoded_get_iv(const pwbox_encoded_t *inp, size_t idx) { trunnel_assert(idx < 16); return inp->iv[idx]; } int pwbox_encoded_set_iv(pwbox_encoded_t *inp, size_t idx, uint8_t elt) { trunnel_assert(idx < 16); inp->iv[idx] = elt; return 0; } uint8_t * pwbox_encoded_getarray_iv(pwbox_encoded_t *inp) { return inp->iv; } size_t pwbox_encoded_getlen_data(const pwbox_encoded_t *inp) { return TRUNNEL_DYNARRAY_LEN(&inp->data); } uint8_t pwbox_encoded_get_data(pwbox_encoded_t *inp, size_t idx) { return TRUNNEL_DYNARRAY_GET(&inp->data, idx); } int pwbox_encoded_set_data(pwbox_encoded_t *inp, size_t idx, uint8_t elt) { TRUNNEL_DYNARRAY_SET(&inp->data, idx, elt); return 0; } int pwbox_encoded_add_data(pwbox_encoded_t *inp, uint8_t elt) { TRUNNEL_DYNARRAY_ADD(uint8_t, &inp->data, elt, {}); return 0; trunnel_alloc_failed: TRUNNEL_SET_ERROR_CODE(inp); return -1; } uint8_t * pwbox_encoded_getarray_data(pwbox_encoded_t *inp) { return inp->data.elts_; } int pwbox_encoded_setlen_data(pwbox_encoded_t *inp, size_t newlen) { uint8_t *newptr; newptr = trunnel_dynarray_setlen(&inp->data.allocated_, &inp->data.n_, inp->data.elts_, newlen, sizeof(inp->data.elts_[0]), (trunnel_free_fn_t) NULL, &inp->trunnel_error_code_); if (newlen != 0 && newptr == NULL) goto trunnel_alloc_failed; inp->data.elts_ = newptr; return 0; trunnel_alloc_failed: TRUNNEL_SET_ERROR_CODE(inp); return -1; } size_t pwbox_encoded_getlen_hmac(const pwbox_encoded_t *inp) { (void)inp; return 32; } uint8_t pwbox_encoded_get_hmac(const pwbox_encoded_t *inp, size_t idx) { trunnel_assert(idx < 32); return inp->hmac[idx]; } int pwbox_encoded_set_hmac(pwbox_encoded_t *inp, size_t idx, uint8_t elt) { trunnel_assert(idx < 32); inp->hmac[idx] = elt; return 0; } uint8_t * pwbox_encoded_getarray_hmac(pwbox_encoded_t *inp) { return inp->hmac; } const char * pwbox_encoded_check(const pwbox_encoded_t *obj) { if (obj == NULL) return "Object was NULL"; if (obj->trunnel_error_code_) return "A set function failed on this object"; if (! (obj->fixedbytes0 == PWBOX0_CONST0)) return "Integer out of bounds"; if (! (obj->fixedbytes1 == PWBOX0_CONST1)) return "Integer out of bounds"; if (TRUNNEL_DYNARRAY_LEN(&obj->skey_header) != obj->header_len) return "Length mismatch for skey_header"; return NULL; } ssize_t pwbox_encoded_encoded_len(const pwbox_encoded_t *obj) { ssize_t result = 0; if (NULL != pwbox_encoded_check(obj)) return -1; /* Length of u32 fixedbytes0 IN [PWBOX0_CONST0] */ result += 4; /* Length of u32 fixedbytes1 IN [PWBOX0_CONST1] */ result += 4; /* Length of u8 header_len */ result += 1; /* Length of u8 skey_header[header_len] */ result += TRUNNEL_DYNARRAY_LEN(&obj->skey_header); /* Length of u8 iv[16] */ result += 16; /* Length of u8 data[] */ result += TRUNNEL_DYNARRAY_LEN(&obj->data); /* Length of u8 hmac[32] */ result += 32; return result; } int pwbox_encoded_clear_errors(pwbox_encoded_t *obj) { int r = obj->trunnel_error_code_; obj->trunnel_error_code_ = 0; return r; } ssize_t pwbox_encoded_encode(uint8_t *output, size_t avail, const pwbox_encoded_t *obj) { ssize_t result = 0; size_t written = 0; uint8_t *ptr = output; const char *msg; #ifdef TRUNNEL_CHECK_ENCODED_LEN const ssize_t encoded_len = pwbox_encoded_encoded_len(obj); #endif int enforce_avail = 0; const size_t avail_orig = avail; if (NULL != (msg = pwbox_encoded_check(obj))) goto check_failed; #ifdef TRUNNEL_CHECK_ENCODED_LEN trunnel_assert(encoded_len >= 0); #endif /* Encode u32 fixedbytes0 IN [PWBOX0_CONST0] */ trunnel_assert(written <= avail); if (avail - written < 4) goto truncated; trunnel_set_uint32(ptr, trunnel_htonl(obj->fixedbytes0)); written += 4; ptr += 4; /* Encode u32 fixedbytes1 IN [PWBOX0_CONST1] */ trunnel_assert(written <= avail); if (avail - written < 4) goto truncated; trunnel_set_uint32(ptr, trunnel_htonl(obj->fixedbytes1)); written += 4; ptr += 4; /* Encode u8 header_len */ trunnel_assert(written <= avail); if (avail - written < 1) goto truncated; trunnel_set_uint8(ptr, (obj->header_len)); written += 1; ptr += 1; /* Encode u8 skey_header[header_len] */ { size_t elt_len = TRUNNEL_DYNARRAY_LEN(&obj->skey_header); trunnel_assert(obj->header_len == elt_len); trunnel_assert(written <= avail); if (avail - written < elt_len) goto truncated; if (elt_len) memcpy(ptr, obj->skey_header.elts_, elt_len); written += elt_len; ptr += elt_len; } /* Encode u8 iv[16] */ trunnel_assert(written <= avail); if (avail - written < 16) goto truncated; memcpy(ptr, obj->iv, 16); written += 16; ptr += 16; { /* Encode u8 data[] */ { size_t elt_len = TRUNNEL_DYNARRAY_LEN(&obj->data); trunnel_assert(written <= avail); if (avail - written < elt_len) goto truncated; if (elt_len) memcpy(ptr, obj->data.elts_, elt_len); written += elt_len; ptr += elt_len; } trunnel_assert(written <= avail); if (avail - written < 32) goto truncated; avail = written + 32; enforce_avail = 1; } /* Encode u8 hmac[32] */ trunnel_assert(written <= avail); if (avail - written < 32) { if (avail_orig - written < 32) goto truncated; else goto check_failed; } memcpy(ptr, obj->hmac, 32); written += 32; ptr += 32; trunnel_assert(ptr == output + written); if (enforce_avail && avail != written) goto check_failed; #ifdef TRUNNEL_CHECK_ENCODED_LEN { trunnel_assert(encoded_len >= 0); trunnel_assert((size_t)encoded_len == written); } #endif return written; truncated: result = -2; goto fail; check_failed: (void)msg; result = -1; goto fail; fail: trunnel_assert(result < 0); return result; } /** As pwbox_encoded_parse(), but do not allocate the output object. */ static ssize_t pwbox_encoded_parse_into(pwbox_encoded_t *obj, const uint8_t *input, const size_t len_in) { const uint8_t *ptr = input; size_t remaining = len_in; ssize_t result = 0; (void)result; /* Parse u32 fixedbytes0 IN [PWBOX0_CONST0] */ CHECK_REMAINING(4, truncated); obj->fixedbytes0 = trunnel_ntohl(trunnel_get_uint32(ptr)); remaining -= 4; ptr += 4; if (! (obj->fixedbytes0 == PWBOX0_CONST0)) goto fail; /* Parse u32 fixedbytes1 IN [PWBOX0_CONST1] */ CHECK_REMAINING(4, truncated); obj->fixedbytes1 = trunnel_ntohl(trunnel_get_uint32(ptr)); remaining -= 4; ptr += 4; if (! (obj->fixedbytes1 == PWBOX0_CONST1)) goto fail; /* Parse u8 header_len */ CHECK_REMAINING(1, truncated); obj->header_len = (trunnel_get_uint8(ptr)); remaining -= 1; ptr += 1; /* Parse u8 skey_header[header_len] */ CHECK_REMAINING(obj->header_len, truncated); TRUNNEL_DYNARRAY_EXPAND(uint8_t, &obj->skey_header, obj->header_len, {}); obj->skey_header.n_ = obj->header_len; if (obj->header_len) memcpy(obj->skey_header.elts_, ptr, obj->header_len); ptr += obj->header_len; remaining -= obj->header_len; /* Parse u8 iv[16] */ CHECK_REMAINING(16, truncated); memcpy(obj->iv, ptr, 16); remaining -= 16; ptr += 16; { size_t remaining_after; CHECK_REMAINING(32, truncated); remaining_after = 32; remaining = remaining - 32; /* Parse u8 data[] */ TRUNNEL_DYNARRAY_EXPAND(uint8_t, &obj->data, remaining, {}); obj->data.n_ = remaining; if (remaining) memcpy(obj->data.elts_, ptr, remaining); ptr += remaining; remaining -= remaining; if (remaining != 0) goto fail; remaining = remaining_after; } /* Parse u8 hmac[32] */ CHECK_REMAINING(32, truncated); memcpy(obj->hmac, ptr, 32); remaining -= 32; ptr += 32; trunnel_assert(ptr + remaining == input + len_in); return len_in - remaining; truncated: return -2; trunnel_alloc_failed: return -1; fail: result = -1; return result; } ssize_t pwbox_encoded_parse(pwbox_encoded_t **output, const uint8_t *input, const size_t len_in) { ssize_t result; *output = pwbox_encoded_new(); if (NULL == *output) return -1; result = pwbox_encoded_parse_into(*output, input, len_in); if (result < 0) { pwbox_encoded_free(*output); *output = NULL; } return result; } tor-0.2.9.10/src/trunnel/README0000644000175000017500000000163313002150440012614 00000000000000This directory contains code for use with, and code made by, the automatic code generation tool "Trunnel". Trunnel generates binary parsers and formatters for simple data structures. It aims for human-readable, obviously-correct outputs over maximum efficiency or flexibility. The .trunnel files are the inputs here; the .c and .h files are the outputs. To add a new structure: - Add a new .trunnel file or expand an existing one to describe the format of the structure. - Regenerate the .c and .h files. To do this, you run "scripts/codegen/run_trunnel.sh". You'll need trunnel installed. - Add the .trunnel, .c, and .h files to include.am For the Trunnel source code, and more documentation about using Trunnel, see https://gitweb.torproject.org/trunnel.git , especially https://gitweb.torproject.org/trunnel.git/tree/README and https://gitweb.torproject.org/trunnel.git/tree/doc/trunnel.md tor-0.2.9.10/src/win32/0000755000175000017500000000000013055542661011306 500000000000000tor-0.2.9.10/src/win32/include.am0000644000175000017500000000004413002150440013144 00000000000000 EXTRA_DIST+= src/win32/orconfig.h tor-0.2.9.10/src/win32/orconfig.h0000644000175000017500000001427513055314633013212 00000000000000/* orconfig.h for Windows -- This file is *not* generated by autoconf. * Instead, it has to be hand-edited to keep Win32 happy. */ /* Windows-only defines. */ #define CONFDIR "" /* Define to 1 if you have the header file. */ #undef HAVE_ARPA_INET_H /* Define to 1 if you have the header file. */ #define HAVE_ASSERT_H /* Define to 1 if you have the header file. */ #define HAVE_CTYPE_H /* Define to 1 if you have the header file. */ #define HAVE_ERRNO_H /* Define to 1 if you have the header file. */ #define HAVE_FCNTL_H /* Define to 1 if you have the `ftime' function. */ #define HAVE_FTIME /* Define to 1 if you have the `gettimeofday' function. */ #undef HAVE_GETTIMEOFDAY /* Define to 1 if you have the header file. */ #undef HAVE_GRP_H /* Define to 1 if you have the `inet_aton' function. */ #undef HAVE_INET_ATON /* Define to 1 if you have the header file. */ /* #define HAVE_INTTYPES_H */ /* Define to 1 if you have the header file. */ #define HAVE_LIMITS_H /* Define to 1 if you have the header file. */ #undef HAVE_MACHINE_LIMITS_H /* Define to 1 if you have the header file. */ #define HAVE_MEMORY_H /* Define to 1 if you have the header file. */ #undef HAVE_NETDB_H /* Define to 1 if you have the header file. */ #undef HAVE_NETINET_IN_H /* Define to 1 if you have the header file. */ #undef HAVE_POLL_H /* Define to 1 if you have the header file. */ #undef HAVE_PWD_H /* Define to 1 if you have the header file. */ #define HAVE_SIGNAL_H /* Define to 1 if you have the `socketpair' function. */ #undef HAVE_SOCKETPAIR /* Define to 1 if you have the header file. */ #undef HAVE_STDINT_H /* Define to 1 if you have the header file. */ #define HAVE_STDLIB_H /* Define to 1 if you have the header file. */ #undef HAVE_STRINGS_H /* Define to 1 if you have the header file. */ #define HAVE_STRING_H /* Define to 1 if you have the `strlcat' function. */ #undef HAVE_STRLCAT /* Define to 1 if you have the `strlcpy' function. */ #undef HAVE_STRLCPY /* Define to 1 if you have the `strptime' function. */ #undef HAVE_STRPTIME /* Define to 1 if your timeval has a tv_sec element. */ #define HAVE_STRUCT_TIMEVAL_TV_SEC /* Change to #undef if you're using BCC */ /* Define to 1 if you have the header file. */ #undef HAVE_SYS_FCNTL_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_IOCTL_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_LIMITS_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_POLL_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_SOCKET_H /* Define to 1 if you have the header file. */ #define HAVE_SYS_STAT_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_TIME_H /* Define to 1 if you have the header file. */ #define HAVE_SYS_TYPES_H /* Define to 1 if you have the header file. */ #define HAVE_SYS_UTIME_H /* Define to 1 if you have the header file. */ #undef HAVE_SYS_WAIT_H /* Define to 1 if you have the header file. */ #define HAVE_TIME_H /* Define to 1 if you have the `uname' function. */ #undef HAVE_UNAME /* Define to 1 if you have the header file. */ #undef HAVE_UNISTD_H /* Define to 1 if you have the `_vscprintf' function. */ #define HAVE__VSCPRINTF 1 /* Define to 1 iff NULL is represented by a 0 in memory. */ #define NULL_REP_IS_ZERO_BYTES 1 /* Define to 1 iff memset(0) sets doubles to 0.0 */ #define DOUBLE_0_REP_IS_ZERO_BYTES 1 /* Name of package */ #define PACKAGE "tor" /* Define to the address where bug reports for this package should be sent. */ #undef PACKAGE_BUGREPORT /* Define to the full name of this package. */ #undef PACKAGE_NAME /* Define to the full name and version of this package. */ #undef PACKAGE_STRING /* Define to the one symbol short name of this package. */ #undef PACKAGE_TARNAME /* Define to the version of this package. */ #undef PACKAGE_VERSION /* The size of a `char', as computed by sizeof. */ #define SIZEOF_CHAR 1 /* The size of a `int', as computed by sizeof. */ #define SIZEOF_INT 4 /* The size of a `int16_t', as computed by sizeof. */ #undef SIZEOF_INT16_T /* The size of a `int32_t', as computed by sizeof. */ #undef SIZEOF_INT32_T /* The size of a `int64_t', as computed by sizeof. */ #undef SIZEOF_INT64_T /* The size of a `int8_t', as computed by sizeof. */ #undef SIZEOF_INT8_T /* The size of a `long', as computed by sizeof. */ #define SIZEOF_LONG 4 /* The size of a `long long', as computed by sizeof. */ #undef SIZEOF_LONG_LONG /* The size of `pid_t', as computed by sizeof. */ #define SIZEOF_PID_T 0 /* The size of a `short', as computed by sizeof. */ #define SIZEOF_SHORT 2 /* The size of a `time_t', as computed by sizeof. */ #define SIZEOF_TIME_T 4 /* The size of a `uint16_t', as computed by sizeof. */ #undef SIZEOF_UINT16_T /* The size of a `uint32_t', as computed by sizeof. */ #undef SIZEOF_UINT32_T /* The size of a `uint64_t', as computed by sizeof. */ #undef SIZEOF_UINT64_T /* The size of a `uint8_t', as computed by sizeof. */ #undef SIZEOF_UINT8_T /* The size of a `void *', as computed by sizeof. */ #define SIZEOF_VOID_P 4 /* The size of a `__int64', as computed by sizeof. */ #define SIZEOF___INT64 8 /* The sizeof a size_t, as computed by sizeof. */ #define SIZEOF_SIZE_T 4 /* Define to 1 if you have the ANSI C header files. */ #define STDC_HEADERS /* Define to 1 iff unaligned int access is allowed */ #define UNALIGNED_INT_ACCESS_OK /* Define to 1 iff we represent negative integers with two's complement */ #define USING_TWOS_COMPLEMENT /* Version number of package */ #define VERSION "0.2.9.10" #define HAVE_STRUCT_SOCKADDR_IN6 #define HAVE_STRUCT_IN6_ADDR #define RSHIFT_DOES_SIGN_EXTEND #define FLEXIBLE_ARRAY_MEMBER 0 #define SHARE_DATADIR "" #define USE_CURVE25519_DONNA #define ENUM_VALS_ARE_SIGNED 1 #ifndef STDOUT_FILENO #define STDOUT_FILENO 1 #endif #ifndef STDERR_FILENO #define STDERR_FILENO 2 #endif #define WINVER 0x0501 #define _WIN32_WINNT 0x0501 #define WIN32_LEAN_AND_MEAN 1 tor-0.2.9.10/src/or/0000755000175000017500000000000013055542661010764 500000000000000tor-0.2.9.10/src/or/channel.c0000644000175000017500000040362513051624457012472 00000000000000/* * Copyright (c) 2012-2016, The Tor Project, Inc. */ /* See LICENSE for licensing information */ /** * \file channel.c * * \brief OR/OP-to-OR channel abstraction layer. A channel's job is to * transfer cells from Tor instance to Tor instance. * Currently, there is only one implementation of the channel abstraction: in * channeltls.c. * * Channels are a higher-level abstraction than or_connection_t: In general, * any means that two Tor relays use to exchange cells, or any means that a * relay and a client use to exchange cells, is a channel. * * Channels differ from pluggable transports in that they do not wrap an * underlying protocol over which cells are transmitted: they are the * underlying protocol. * * This module defines the generic parts of the channel_t interface, and * provides the machinery necessary for specialized implementations to be * created. At present, there is one specialized implementation in * channeltls.c, which uses connection_or.c to send cells over a TLS * connection. * * Every channel implementation is responsible for being able to transmit * cells that are added to it with channel_write_cell() and related functions, * and to receive incoming cells with the channel_queue_cell() and related * functions. See the channel_t documentation for more information. * * When new cells arrive on a channel, they are passed to cell handler * functions, which can be set by channel_set_cell_handlers() * functions. (Tor's cell handlers are in command.c.) * * Tor flushes cells to channels from relay.c in * channel_flush_from_first_active_circuit(). **/ /* * Define this so channel.h gives us things only channel_t subclasses * should touch. */ #define TOR_CHANNEL_INTERNAL_ /* This one's for stuff only channel.c and the test suite should see */ #define CHANNEL_PRIVATE_ #include "or.h" #include "channel.h" #include "channeltls.h" #include "circuitbuild.h" #include "circuitlist.h" #include "circuitstats.h" #include "config.h" #include "connection_or.h" /* For var_cell_free() */ #include "circuitmux.h" #include "entrynodes.h" #include "geoip.h" #include "nodelist.h" #include "relay.h" #include "rephist.h" #include "router.h" #include "routerlist.h" #include "scheduler.h" /* Global lists of channels */ /* All channel_t instances */ static smartlist_t *all_channels = NULL; /* All channel_t instances not in ERROR or CLOSED states */ static smartlist_t *active_channels = NULL; /* All channel_t instances in ERROR or CLOSED states */ static smartlist_t *finished_channels = NULL; /* All channel_listener_t instances */ static smartlist_t *all_listeners = NULL; /* All channel_listener_t instances in LISTENING state */ static smartlist_t *active_listeners = NULL; /* All channel_listener_t instances in LISTENING state */ static smartlist_t *finished_listeners = NULL; /* Counter for ID numbers */ static uint64_t n_channels_allocated = 0; /* * Channel global byte/cell counters, for statistics and for scheduler high * /low-water marks. */ /* * Total number of cells ever given to any channel with the * channel_write_*_cell() functions. */ static uint64_t n_channel_cells_queued = 0; /* * Total number of cells ever passed to a channel lower layer with the * write_*_cell() methods. */ static uint64_t n_channel_cells_passed_to_lower_layer = 0; /* * Current number of cells in all channel queues; should be * n_channel_cells_queued - n_channel_cells_passed_to_lower_layer. */ static uint64_t n_channel_cells_in_queues = 0; /* * Total number of bytes for all cells ever queued to a channel and * counted in n_channel_cells_queued. */ static uint64_t n_channel_bytes_queued = 0; /* * Total number of bytes for all cells ever passed to a channel lower layer * and counted in n_channel_cells_passed_to_lower_layer. */ static uint64_t n_channel_bytes_passed_to_lower_layer = 0; /* * Current number of bytes in all channel queues; should be * n_channel_bytes_queued - n_channel_bytes_passed_to_lower_layer. */ static uint64_t n_channel_bytes_in_queues = 0; /* * Current total estimated queue size *including lower layer queues and * transmit overhead* */ STATIC uint64_t estimated_total_queue_size = 0; /* Digest->channel map * * Similar to the one used in connection_or.c, this maps from the identity * digest of a remote endpoint to a channel_t to that endpoint. Channels * should be placed here when registered and removed when they close or error. * If more than one channel exists, follow the next_with_same_id pointer * as a linked list. */ static HT_HEAD(channel_idmap, channel_idmap_entry_s) channel_identity_map = HT_INITIALIZER(); typedef struct channel_idmap_entry_s { HT_ENTRY(channel_idmap_entry_s) node; uint8_t digest[DIGEST_LEN]; TOR_LIST_HEAD(channel_list_s, channel_s) channel_list; } channel_idmap_entry_t; static inline unsigned channel_idmap_hash(const channel_idmap_entry_t *ent) { return (unsigned) siphash24g(ent->digest, DIGEST_LEN); } static inline int channel_idmap_eq(const channel_idmap_entry_t *a, const channel_idmap_entry_t *b) { return tor_memeq(a->digest, b->digest, DIGEST_LEN); } HT_PROTOTYPE(channel_idmap, channel_idmap_entry_s, node, channel_idmap_hash, channel_idmap_eq) HT_GENERATE2(channel_idmap, channel_idmap_entry_s, node, channel_idmap_hash, channel_idmap_eq, 0.5, tor_reallocarray_, tor_free_) static cell_queue_entry_t * cell_queue_entry_dup(cell_queue_entry_t *q); #if 0 static int cell_queue_entry_is_padding(cell_queue_entry_t *q); #endif static cell_queue_entry_t * cell_queue_entry_new_fixed(cell_t *cell); static cell_queue_entry_t * cell_queue_entry_new_var(var_cell_t *var_cell); static int is_destroy_cell(channel_t *chan, const cell_queue_entry_t *q, circid_t *circid_out); static void channel_assert_counter_consistency(void); /* Functions to maintain the digest map */ static void channel_add_to_digest_map(channel_t *chan); static void channel_remove_from_digest_map(channel_t *chan); /* * Flush cells from just the outgoing queue without trying to get them * from circuits; used internall by channel_flush_some_cells(). */ static ssize_t channel_flush_some_cells_from_outgoing_queue(channel_t *chan, ssize_t num_cells); static void channel_force_free(channel_t *chan); static void channel_free_list(smartlist_t *channels, int mark_for_close); static void channel_listener_free_list(smartlist_t *channels, int mark_for_close); static void channel_listener_force_free(channel_listener_t *chan_l); static size_t channel_get_cell_queue_entry_size(channel_t *chan, cell_queue_entry_t *q); static void channel_write_cell_queue_entry(channel_t *chan, cell_queue_entry_t *q); /*********************************** * Channel state utility functions * **********************************/ /** * Indicate whether a given channel state is valid */ int channel_state_is_valid(channel_state_t state) { int is_valid; switch (state) { case CHANNEL_STATE_CLOSED: case CHANNEL_STATE_CLOSING: case CHANNEL_STATE_ERROR: case CHANNEL_STATE_MAINT: case CHANNEL_STATE_OPENING: case CHANNEL_STATE_OPEN: is_valid = 1; break; case CHANNEL_STATE_LAST: default: is_valid = 0; } return is_valid; } /** * Indicate whether a given channel listener state is valid */ int channel_listener_state_is_valid(channel_listener_state_t state) { int is_valid; switch (state) { case CHANNEL_LISTENER_STATE_CLOSED: case CHANNEL_LISTENER_STATE_LISTENING: case CHANNEL_LISTENER_STATE_CLOSING: case CHANNEL_LISTENER_STATE_ERROR: is_valid = 1; break; case CHANNEL_LISTENER_STATE_LAST: default: is_valid = 0; } return is_valid; } /** * Indicate whether a channel state transition is valid * * This function takes two channel states and indicates whether a * transition between them is permitted (see the state definitions and * transition table in or.h at the channel_state_t typedef). */ int channel_state_can_transition(channel_state_t from, channel_state_t to) { int is_valid; switch (from) { case CHANNEL_STATE_CLOSED: is_valid = (to == CHANNEL_STATE_OPENING); break; case CHANNEL_STATE_CLOSING: is_valid = (to == CHANNEL_STATE_CLOSED || to == CHANNEL_STATE_ERROR); break; case CHANNEL_STATE_ERROR: is_valid = 0; break; case CHANNEL_STATE_MAINT: is_valid = (to == CHANNEL_STATE_CLOSING || to == CHANNEL_STATE_ERROR || to == CHANNEL_STATE_OPEN); break; case CHANNEL_STATE_OPENING: is_valid = (to == CHANNEL_STATE_CLOSING || to == CHANNEL_STATE_ERROR || to == CHANNEL_STATE_OPEN); break; case CHANNEL_STATE_OPEN: is_valid = (to == CHANNEL_STATE_CLOSING || to == CHANNEL_STATE_ERROR || to == CHANNEL_STATE_MAINT); break; case CHANNEL_STATE_LAST: default: is_valid = 0; } return is_valid; } /** * Indicate whether a channel listener state transition is valid * * This function takes two channel listener states and indicates whether a * transition between them is permitted (see the state definitions and * transition table in or.h at the channel_listener_state_t typedef). */ int channel_listener_state_can_transition(channel_listener_state_t from, channel_listener_state_t to) { int is_valid; switch (from) { case CHANNEL_LISTENER_STATE_CLOSED: is_valid = (to == CHANNEL_LISTENER_STATE_LISTENING); break; case CHANNEL_LISTENER_STATE_CLOSING: is_valid = (to == CHANNEL_LISTENER_STATE_CLOSED || to == CHANNEL_LISTENER_STATE_ERROR); break; case CHANNEL_LISTENER_STATE_ERROR: is_valid = 0; break; case CHANNEL_LISTENER_STATE_LISTENING: is_valid = (to == CHANNEL_LISTENER_STATE_CLOSING || to == CHANNEL_LISTENER_STATE_ERROR); break; case CHANNEL_LISTENER_STATE_LAST: default: is_valid = 0; } return is_valid; } /** * Return a human-readable description for a channel state */ const char * channel_state_to_string(channel_state_t state) { const char *descr; switch (state) { case CHANNEL_STATE_CLOSED: descr = "closed"; break; case CHANNEL_STATE_CLOSING: descr = "closing"; break; case CHANNEL_STATE_ERROR: descr = "channel error"; break; case CHANNEL_STATE_MAINT: descr = "temporarily suspended for maintenance"; break; case CHANNEL_STATE_OPENING: descr = "opening"; break; case CHANNEL_STATE_OPEN: descr = "open"; break; case CHANNEL_STATE_LAST: default: descr = "unknown or invalid channel state"; } return descr; } /** * Return a human-readable description for a channel listenier state */ const char * channel_listener_state_to_string(channel_listener_state_t state) { const char *descr; switch (state) { case CHANNEL_LISTENER_STATE_CLOSED: descr = "closed"; break; case CHANNEL_LISTENER_STATE_CLOSING: descr = "closing"; break; case CHANNEL_LISTENER_STATE_ERROR: descr = "channel listener error"; break; case CHANNEL_LISTENER_STATE_LISTENING: descr = "listening"; break; case CHANNEL_LISTENER_STATE_LAST: default: descr = "unknown or invalid channel listener state"; } return descr; } /*************************************** * Channel registration/unregistration * ***************************************/ /** * Register a channel * * This function registers a newly created channel in the global lists/maps * of active channels. */ void channel_register(channel_t *chan) { tor_assert(chan); /* No-op if already registered */ if (chan->registered) return; log_debug(LD_CHANNEL, "Registering channel %p (ID " U64_FORMAT ") " "in state %s (%d) with digest %s", chan, U64_PRINTF_ARG(chan->global_identifier), channel_state_to_string(chan->state), chan->state, hex_str(chan->identity_digest, DIGEST_LEN)); /* Make sure we have all_channels, then add it */ if (!all_channels) all_channels = smartlist_new(); smartlist_add(all_channels, chan); /* Is it finished? */ if (CHANNEL_FINISHED(chan)) { /* Put it in the finished list, creating it if necessary */ if (!finished_channels) finished_channels = smartlist_new(); smartlist_add(finished_channels, chan); } else { /* Put it in the active list, creating it if necessary */ if (!active_channels) active_channels = smartlist_new(); smartlist_add(active_channels, chan); if (!CHANNEL_IS_CLOSING(chan)) { /* It should have a digest set */ if (!tor_digest_is_zero(chan->identity_digest)) { /* Yeah, we're good, add it to the map */ channel_add_to_digest_map(chan); } else { log_info(LD_CHANNEL, "Channel %p (global ID " U64_FORMAT ") " "in state %s (%d) registered with no identity digest", chan, U64_PRINTF_ARG(chan->global_identifier), channel_state_to_string(chan->state), chan->state); } } } /* Mark it as registered */ chan->registered = 1; } /** * Unregister a channel * * This function removes a channel from the global lists and maps and is used * when freeing a closed/errored channel. */ void channel_unregister(channel_t *chan) { tor_assert(chan); /* No-op if not registered */ if (!(chan->registered)) return; /* Is it finished? */ if (CHANNEL_FINISHED(chan)) { /* Get it out of the finished list */ if (finished_channels) smartlist_remove(finished_channels, chan); } else { /* Get it out of the active list */ if (active_channels) smartlist_remove(active_channels, chan); } /* Get it out of all_channels */ if (all_channels) smartlist_remove(all_channels, chan); /* Mark it as unregistered */ chan->registered = 0; /* Should it be in the digest map? */ if (!tor_digest_is_zero(chan->identity_digest) && !(CHANNEL_CONDEMNED(chan))) { /* Remove it */ channel_remove_from_digest_map(chan); } } /** * Register a channel listener * * This function registers a newly created channel listner in the global * lists/maps of active channel listeners. */ void channel_listener_register(channel_listener_t *chan_l) { tor_assert(chan_l); /* No-op if already registered */ if (chan_l->registered) return; log_debug(LD_CHANNEL, "Registering channel listener %p (ID " U64_FORMAT ") " "in state %s (%d)", chan_l, U64_PRINTF_ARG(chan_l->global_identifier), channel_listener_state_to_string(chan_l->state), chan_l->state); /* Make sure we have all_channels, then add it */ if (!all_listeners) all_listeners = smartlist_new(); smartlist_add(all_listeners, chan_l); /* Is it finished? */ if (chan_l->state == CHANNEL_LISTENER_STATE_CLOSED || chan_l->state == CHANNEL_LISTENER_STATE_ERROR) { /* Put it in the finished list, creating it if necessary */ if (!finished_listeners) finished_listeners = smartlist_new(); smartlist_add(finished_listeners, chan_l); } else { /* Put it in the active list, creating it if necessary */ if (!active_listeners) active_listeners = smartlist_new(); smartlist_add(active_listeners, chan_l); } /* Mark it as registered */ chan_l->registered = 1; } /** * Unregister a channel listener * * This function removes a channel listener from the global lists and maps * and is used when freeing a closed/errored channel listener. */ void channel_listener_unregister(channel_listener_t *chan_l) { tor_assert(chan_l); /* No-op if not registered */ if (!(chan_l->registered)) return; /* Is it finished? */ if (chan_l->state == CHANNEL_LISTENER_STATE_CLOSED || chan_l->state == CHANNEL_LISTENER_STATE_ERROR) { /* Get it out of the finished list */ if (finished_listeners) smartlist_remove(finished_listeners, chan_l); } else { /* Get it out of the active list */ if (active_listeners) smartlist_remove(active_listeners, chan_l); } /* Get it out of all_channels */ if (all_listeners) smartlist_remove(all_listeners, chan_l); /* Mark it as unregistered */ chan_l->registered = 0; } /********************************* * Channel digest map maintenance *********************************/ /** * Add a channel to the digest map * * This function adds a channel to the digest map and inserts it into the * correct linked list if channels with that remote endpoint identity digest * already exist. */ static void channel_add_to_digest_map(channel_t *chan) { channel_idmap_entry_t *ent, search; tor_assert(chan); /* Assert that the state makes sense */ tor_assert(!CHANNEL_CONDEMNED(chan)); /* Assert that there is a digest */ tor_assert(!tor_digest_is_zero(chan->identity_digest)); memcpy(search.digest, chan->identity_digest, DIGEST_LEN); ent = HT_FIND(channel_idmap, &channel_identity_map, &search); if (! ent) { ent = tor_malloc(sizeof(channel_idmap_entry_t)); memcpy(ent->digest, chan->identity_digest, DIGEST_LEN); TOR_LIST_INIT(&ent->channel_list); HT_INSERT(channel_idmap, &channel_identity_map, ent); } TOR_LIST_INSERT_HEAD(&ent->channel_list, chan, next_with_same_id); log_debug(LD_CHANNEL, "Added channel %p (global ID " U64_FORMAT ") " "to identity map in state %s (%d) with digest %s", chan, U64_PRINTF_ARG(chan->global_identifier), channel_state_to_string(chan->state), chan->state, hex_str(chan->identity_digest, DIGEST_LEN)); } /** * Remove a channel from the digest map * * This function removes a channel from the digest map and the linked list of * channels for that digest if more than one exists. */ static void channel_remove_from_digest_map(channel_t *chan) { channel_idmap_entry_t *ent, search; tor_assert(chan); /* Assert that there is a digest */ tor_assert(!tor_digest_is_zero(chan->identity_digest)); #if 0 /* Make sure we have a map */ if (!channel_identity_map) { /* * No identity map, so we can't find it by definition. This * case is similar to digestmap_get() failing below. */ log_warn(LD_BUG, "Trying to remove channel %p (global ID " U64_FORMAT ") " "with digest %s from identity map, but didn't have any identity " "map", chan, U64_PRINTF_ARG(chan->global_identifier), hex_str(chan->identity_digest, DIGEST_LEN)); /* Clear out its next/prev pointers */ if (chan->next_with_same_id) { chan->next_with_same_id->prev_with_same_id = chan->prev_with_same_id; } if (chan->prev_with_same_id) { chan->prev_with_same_id->next_with_same_id = chan->next_with_same_id; } chan->next_with_same_id = NULL; chan->prev_with_same_id = NULL; return; } #endif /* Pull it out of its list, wherever that list is */ TOR_LIST_REMOVE(chan, next_with_same_id); memcpy(search.digest, chan->identity_digest, DIGEST_LEN); ent = HT_FIND(channel_idmap, &channel_identity_map, &search); /* Look for it in the map */ if (ent) { /* Okay, it's here */ if (TOR_LIST_EMPTY(&ent->channel_list)) { HT_REMOVE(channel_idmap, &channel_identity_map, ent); tor_free(ent); } log_debug(LD_CHANNEL, "Removed channel %p (global ID " U64_FORMAT ") from " "identity map in state %s (%d) with digest %s", chan, U64_PRINTF_ARG(chan->global_identifier), channel_state_to_string(chan->state), chan->state, hex_str(chan->identity_digest, DIGEST_LEN)); } else { /* Shouldn't happen */ log_warn(LD_BUG, "Trying to remove channel %p (global ID " U64_FORMAT ") with " "digest %s from identity map, but couldn't find any with " "that digest", chan, U64_PRINTF_ARG(chan->global_identifier), hex_str(chan->identity_digest, DIGEST_LEN)); } } /**************************** * Channel lookup functions * ***************************/ /** * Find channel by global ID * * This function searches for a channel by the global_identifier assigned * at initialization time. This identifier is unique for the lifetime of the * Tor process. */ channel_t * channel_find_by_global_id(uint64_t global_identifier) { channel_t *rv = NULL; if (all_channels && smartlist_len(all_channels) > 0) { SMARTLIST_FOREACH_BEGIN(all_channels, channel_t *, curr) { if (curr->global_identifier == global_identifier) { rv = curr; break; } } SMARTLIST_FOREACH_END(curr); } return rv; } /** * Find channel by digest of the remote endpoint * * This function looks up a channel by the digest of its remote endpoint in * the channel digest map. It's possible that more than one channel to a * given endpoint exists. Use channel_next_with_digest() to walk the list. */ channel_t * channel_find_by_remote_digest(const char *identity_digest) { channel_t *rv = NULL; channel_idmap_entry_t *ent, search; tor_assert(identity_digest); memcpy(search.digest, identity_digest, DIGEST_LEN); ent = HT_FIND(channel_idmap, &channel_identity_map, &search); if (ent) { rv = TOR_LIST_FIRST(&ent->channel_list); } return rv; } /** * Get next channel with digest * * This function takes a channel and finds the next channel in the list * with the same digest. */ channel_t * channel_next_with_digest(channel_t *chan) { tor_assert(chan); return TOR_LIST_NEXT(chan, next_with_same_id); } /** * Initialize a channel * * This function should be called by subclasses to set up some per-channel * variables. I.e., this is the superclass constructor. Before this, the * channel should be allocated with tor_malloc_zero(). */ void channel_init(channel_t *chan) { tor_assert(chan); /* Assign an ID and bump the counter */ chan->global_identifier = n_channels_allocated++; /* Init timestamp */ chan->timestamp_last_had_circuits = time(NULL); /* Warn about exhausted circuit IDs no more than hourly. */ chan->last_warned_circ_ids_exhausted.rate = 3600; /* Initialize queues. */ TOR_SIMPLEQ_INIT(&chan->incoming_queue); TOR_SIMPLEQ_INIT(&chan->outgoing_queue); /* Initialize list entries. */ memset(&chan->next_with_same_id, 0, sizeof(chan->next_with_same_id)); /* Timestamp it */ channel_timestamp_created(chan); /* It hasn't been open yet. */ chan->has_been_open = 0; /* Scheduler state is idle */ chan->scheduler_state = SCHED_CHAN_IDLE; } /** * Initialize a channel listener * * This function should be called by subclasses to set up some per-channel * variables. I.e., this is the superclass constructor. Before this, the * channel listener should be allocated with tor_malloc_zero(). */ void channel_init_listener(channel_listener_t *chan_l) { tor_assert(chan_l); /* Assign an ID and bump the counter */ chan_l->global_identifier = n_channels_allocated++; /* Timestamp it */ channel_listener_timestamp_created(chan_l); } /** * Free a channel; nothing outside of channel.c and subclasses should call * this - it frees channels after they have closed and been unregistered. */ void channel_free(channel_t *chan) { if (!chan) return; /* It must be closed or errored */ tor_assert(CHANNEL_FINISHED(chan)); /* It must be deregistered */ tor_assert(!(chan->registered)); log_debug(LD_CHANNEL, "Freeing channel " U64_FORMAT " at %p", U64_PRINTF_ARG(chan->global_identifier), chan); /* Get this one out of the scheduler */ scheduler_release_channel(chan); /* * Get rid of cmux policy before we do anything, so cmux policies don't * see channels in weird half-freed states. */ if (chan->cmux) { circuitmux_set_policy(chan->cmux, NULL); } /* Call a free method if there is one */ if (chan->free_fn) chan->free_fn(chan); channel_clear_remote_end(chan); /* Get rid of cmux */ if (chan->cmux) { circuitmux_detach_all_circuits(chan->cmux, NULL); circuitmux_mark_destroyed_circids_usable(chan->cmux, chan); circuitmux_free(chan->cmux); chan->cmux = NULL; } /* We're in CLOSED or ERROR, so the cell queue is already empty */ tor_free(chan); } /** * Free a channel listener; nothing outside of channel.c and subclasses * should call this - it frees channel listeners after they have closed and * been unregistered. */ void channel_listener_free(channel_listener_t *chan_l) { if (!chan_l) return; log_debug(LD_CHANNEL, "Freeing channel_listener_t " U64_FORMAT " at %p", U64_PRINTF_ARG(chan_l->global_identifier), chan_l); /* It must be closed or errored */ tor_assert(chan_l->state == CHANNEL_LISTENER_STATE_CLOSED || chan_l->state == CHANNEL_LISTENER_STATE_ERROR); /* It must be deregistered */ tor_assert(!(chan_l->registered)); /* Call a free method if there is one */ if (chan_l->free_fn) chan_l->free_fn(chan_l); /* * We're in CLOSED or ERROR, so the incoming channel queue is already * empty. */ tor_free(chan_l); } /** * Free a channel and skip the state/registration asserts; this internal- * use-only function should be called only from channel_free_all() when * shutting down the Tor process. */ static void channel_force_free(channel_t *chan) { cell_queue_entry_t *cell, *cell_tmp; tor_assert(chan); log_debug(LD_CHANNEL, "Force-freeing channel " U64_FORMAT " at %p", U64_PRINTF_ARG(chan->global_identifier), chan); /* Get this one out of the scheduler */ scheduler_release_channel(chan); /* * Get rid of cmux policy before we do anything, so cmux policies don't * see channels in weird half-freed states. */ if (chan->cmux) { circuitmux_set_policy(chan->cmux, NULL); } /* Call a free method if there is one */ if (chan->free_fn) chan->free_fn(chan); channel_clear_remote_end(chan); /* Get rid of cmux */ if (chan->cmux) { circuitmux_free(chan->cmux); chan->cmux = NULL; } /* We might still have a cell queue; kill it */ TOR_SIMPLEQ_FOREACH_SAFE(cell, &chan->incoming_queue, next, cell_tmp) { cell_queue_entry_free(cell, 0); } TOR_SIMPLEQ_INIT(&chan->incoming_queue); /* Outgoing cell queue is similar, but we can have to free packed cells */ TOR_SIMPLEQ_FOREACH_SAFE(cell, &chan->outgoing_queue, next, cell_tmp) { cell_queue_entry_free(cell, 0); } TOR_SIMPLEQ_INIT(&chan->outgoing_queue); tor_free(chan); } /** * Free a channel listener and skip the state/reigstration asserts; this * internal-use-only function should be called only from channel_free_all() * when shutting down the Tor process. */ static void channel_listener_force_free(channel_listener_t *chan_l) { tor_assert(chan_l); log_debug(LD_CHANNEL, "Force-freeing channel_listener_t " U64_FORMAT " at %p", U64_PRINTF_ARG(chan_l->global_identifier), chan_l); /* Call a free method if there is one */ if (chan_l->free_fn) chan_l->free_fn(chan_l); /* * The incoming list just gets emptied and freed; we request close on * any channels we find there, but since we got called while shutting * down they will get deregistered and freed elsewhere anyway. */ if (chan_l->incoming_list) { SMARTLIST_FOREACH_BEGIN(chan_l->incoming_list, channel_t *, qchan) { channel_mark_for_close(qchan); } SMARTLIST_FOREACH_END(qchan); smartlist_free(chan_l->incoming_list); chan_l->incoming_list = NULL; } tor_free(chan_l); } /** * Return the current registered listener for a channel listener * * This function returns a function pointer to the current registered * handler for new incoming channels on a channel listener. */ channel_listener_fn_ptr channel_listener_get_listener_fn(channel_listener_t *chan_l) { tor_assert(chan_l); if (chan_l->state == CHANNEL_LISTENER_STATE_LISTENING) return chan_l->listener; return NULL; } /** * Set the listener for a channel listener * * This function sets the handler for new incoming channels on a channel * listener. */ void channel_listener_set_listener_fn(channel_listener_t *chan_l, channel_listener_fn_ptr listener) { tor_assert(chan_l); tor_assert(chan_l->state == CHANNEL_LISTENER_STATE_LISTENING); log_debug(LD_CHANNEL, "Setting listener callback for channel listener %p " "(global ID " U64_FORMAT ") to %p", chan_l, U64_PRINTF_ARG(chan_l->global_identifier), listener); chan_l->listener = listener; if (chan_l->listener) channel_listener_process_incoming(chan_l); } /** * Return the fixed-length cell handler for a channel * * This function gets the handler for incoming fixed-length cells installed * on a channel. */ channel_cell_handler_fn_ptr channel_get_cell_handler(channel_t *chan) { tor_assert(chan); if (CHANNEL_CAN_HANDLE_CELLS(chan)) return chan->cell_handler; return NULL; } /** * Return the variable-length cell handler for a channel * * This function gets the handler for incoming variable-length cells * installed on a channel. */ channel_var_cell_handler_fn_ptr channel_get_var_cell_handler(channel_t *chan) { tor_assert(chan); if (CHANNEL_CAN_HANDLE_CELLS(chan)) return chan->var_cell_handler; return NULL; } /** * Set both cell handlers for a channel * * This function sets both the fixed-length and variable length cell handlers * for a channel and processes any incoming cells that had been blocked in the * queue because none were available. */ void channel_set_cell_handlers(channel_t *chan, channel_cell_handler_fn_ptr cell_handler, channel_var_cell_handler_fn_ptr var_cell_handler) { int try_again = 0; tor_assert(chan); tor_assert(CHANNEL_CAN_HANDLE_CELLS(chan)); log_debug(LD_CHANNEL, "Setting cell_handler callback for channel %p to %p", chan, cell_handler); log_debug(LD_CHANNEL, "Setting var_cell_handler callback for channel %p to %p", chan, var_cell_handler); /* Should we try the queue? */ if (cell_handler && cell_handler != chan->cell_handler) try_again = 1; if (var_cell_handler && var_cell_handler != chan->var_cell_handler) try_again = 1; /* Change them */ chan->cell_handler = cell_handler; chan->var_cell_handler = var_cell_handler; /* Re-run the queue if we have one and there's any reason to */ if (! TOR_SIMPLEQ_EMPTY(&chan->incoming_queue) && try_again && (chan->cell_handler || chan->var_cell_handler)) channel_process_cells(chan); } /* * On closing channels * * There are three functions that close channels, for use in * different circumstances: * * - Use channel_mark_for_close() for most cases * - Use channel_close_from_lower_layer() if you are connection_or.c * and the other end closes the underlying connection. * - Use channel_close_for_error() if you are connection_or.c and * some sort of error has occurred. */ /** * Mark a channel for closure * * This function tries to close a channel_t; it will go into the CLOSING * state, and eventually the lower layer should put it into the CLOSED or * ERROR state. Then, channel_run_cleanup() will eventually free it. */ void channel_mark_for_close(channel_t *chan) { tor_assert(chan != NULL); tor_assert(chan->close != NULL); /* If it's already in CLOSING, CLOSED or ERROR, this is a no-op */ if (CHANNEL_CONDEMNED(chan)) return; log_debug(LD_CHANNEL, "Closing channel %p (global ID " U64_FORMAT ") " "by request", chan, U64_PRINTF_ARG(chan->global_identifier)); /* Note closing by request from above */ chan->reason_for_closing = CHANNEL_CLOSE_REQUESTED; /* Change state to CLOSING */ channel_change_state(chan, CHANNEL_STATE_CLOSING); /* Tell the lower layer */ chan->close(chan); /* * It's up to the lower layer to change state to CLOSED or ERROR when we're * ready; we'll try to free channels that are in the finished list from * channel_run_cleanup(). The lower layer should do this by calling * channel_closed(). */ } /** * Mark a channel listener for closure * * This function tries to close a channel_listener_t; it will go into the * CLOSING state, and eventually the lower layer should put it into the CLOSED * or ERROR state. Then, channel_run_cleanup() will eventually free it. */ void channel_listener_mark_for_close(channel_listener_t *chan_l) { tor_assert(chan_l != NULL); tor_assert(chan_l->close != NULL); /* If it's already in CLOSING, CLOSED or ERROR, this is a no-op */ if (chan_l->state == CHANNEL_LISTENER_STATE_CLOSING || chan_l->state == CHANNEL_LISTENER_STATE_CLOSED || chan_l->state == CHANNEL_LISTENER_STATE_ERROR) return; log_debug(LD_CHANNEL, "Closing channel listener %p (global ID " U64_FORMAT ") " "by request", chan_l, U64_PRINTF_ARG(chan_l->global_identifier)); /* Note closing by request from above */ chan_l->reason_for_closing = CHANNEL_LISTENER_CLOSE_REQUESTED; /* Change state to CLOSING */ channel_listener_change_state(chan_l, CHANNEL_LISTENER_STATE_CLOSING); /* Tell the lower layer */ chan_l->close(chan_l); /* * It's up to the lower layer to change state to CLOSED or ERROR when we're * ready; we'll try to free channels that are in the finished list from * channel_run_cleanup(). The lower layer should do this by calling * channel_listener_closed(). */ } /** * Close a channel from the lower layer * * Notify the channel code that the channel is being closed due to a non-error * condition in the lower layer. This does not call the close() method, since * the lower layer already knows. */ void channel_close_from_lower_layer(channel_t *chan) { tor_assert(chan != NULL); /* If it's already in CLOSING, CLOSED or ERROR, this is a no-op */ if (CHANNEL_CONDEMNED(chan)) return; log_debug(LD_CHANNEL, "Closing channel %p (global ID " U64_FORMAT ") " "due to lower-layer event", chan, U64_PRINTF_ARG(chan->global_identifier)); /* Note closing by event from below */ chan->reason_for_closing = CHANNEL_CLOSE_FROM_BELOW; /* Change state to CLOSING */ channel_change_state(chan, CHANNEL_STATE_CLOSING); } /** * Close a channel listener from the lower layer * * Notify the channel code that the channel listener is being closed due to a * non-error condition in the lower layer. This does not call the close() * method, since the lower layer already knows. */ void channel_listener_close_from_lower_layer(channel_listener_t *chan_l) { tor_assert(chan_l != NULL); /* If it's already in CLOSING, CLOSED or ERROR, this is a no-op */ if (chan_l->state == CHANNEL_LISTENER_STATE_CLOSING || chan_l->state == CHANNEL_LISTENER_STATE_CLOSED || chan_l->state == CHANNEL_LISTENER_STATE_ERROR) return; log_debug(LD_CHANNEL, "Closing channel listener %p (global ID " U64_FORMAT ") " "due to lower-layer event", chan_l, U64_PRINTF_ARG(chan_l->global_identifier)); /* Note closing by event from below */ chan_l->reason_for_closing = CHANNEL_LISTENER_CLOSE_FROM_BELOW; /* Change state to CLOSING */ channel_listener_change_state(chan_l, CHANNEL_LISTENER_STATE_CLOSING); } /** * Notify that the channel is being closed due to an error condition * * This function is called by the lower layer implementing the transport * when a channel must be closed due to an error condition. This does not * call the channel's close method, since the lower layer already knows. */ void channel_close_for_error(channel_t *chan) { tor_assert(chan != NULL); /* If it's already in CLOSING, CLOSED or ERROR, this is a no-op */ if (CHANNEL_CONDEMNED(chan)) return; log_debug(LD_CHANNEL, "Closing channel %p due to lower-layer error", chan); /* Note closing by event from below */ chan->reason_for_closing = CHANNEL_CLOSE_FOR_ERROR; /* Change state to CLOSING */ channel_change_state(chan, CHANNEL_STATE_CLOSING); } /** * Notify that the channel listener is being closed due to an error condition * * This function is called by the lower layer implementing the transport * when a channel listener must be closed due to an error condition. This * does not call the channel listener's close method, since the lower layer * already knows. */ void channel_listener_close_for_error(channel_listener_t *chan_l) { tor_assert(chan_l != NULL); /* If it's already in CLOSING, CLOSED or ERROR, this is a no-op */ if (chan_l->state == CHANNEL_LISTENER_STATE_CLOSING || chan_l->state == CHANNEL_LISTENER_STATE_CLOSED || chan_l->state == CHANNEL_LISTENER_STATE_ERROR) return; log_debug(LD_CHANNEL, "Closing channel listener %p (global ID " U64_FORMAT ") " "due to lower-layer error", chan_l, U64_PRINTF_ARG(chan_l->global_identifier)); /* Note closing by event from below */ chan_l->reason_for_closing = CHANNEL_LISTENER_CLOSE_FOR_ERROR; /* Change state to CLOSING */ channel_listener_change_state(chan_l, CHANNEL_LISTENER_STATE_CLOSING); } /** * Notify that the lower layer is finished closing the channel * * This function should be called by the lower layer when a channel * is finished closing and it should be regarded as inactive and * freed by the channel code. */ void channel_closed(channel_t *chan) { tor_assert(chan); tor_assert(CHANNEL_CONDEMNED(chan)); /* No-op if already inactive */ if (CHANNEL_FINISHED(chan)) return; /* Inform any pending (not attached) circs that they should * give up. */ if (! chan->has_been_open) circuit_n_chan_done(chan, 0, 0); /* Now close all the attached circuits on it. */ circuit_unlink_all_from_channel(chan, END_CIRC_REASON_CHANNEL_CLOSED); if (chan->reason_for_closing != CHANNEL_CLOSE_FOR_ERROR) { channel_change_state(chan, CHANNEL_STATE_CLOSED); } else { channel_change_state(chan, CHANNEL_STATE_ERROR); } } /** * Notify that the lower layer is finished closing the channel listener * * This function should be called by the lower layer when a channel listener * is finished closing and it should be regarded as inactive and * freed by the channel code. */ void channel_listener_closed(channel_listener_t *chan_l) { tor_assert(chan_l); tor_assert(chan_l->state == CHANNEL_LISTENER_STATE_CLOSING || chan_l->state == CHANNEL_LISTENER_STATE_CLOSED || chan_l->state == CHANNEL_LISTENER_STATE_ERROR); /* No-op if already inactive */ if (chan_l->state == CHANNEL_LISTENER_STATE_CLOSED || chan_l->state == CHANNEL_LISTENER_STATE_ERROR) return; if (chan_l->reason_for_closing != CHANNEL_LISTENER_CLOSE_FOR_ERROR) { channel_listener_change_state(chan_l, CHANNEL_LISTENER_STATE_CLOSED); } else { channel_listener_change_state(chan_l, CHANNEL_LISTENER_STATE_ERROR); } } /** * Clear the identity_digest of a channel * * This function clears the identity digest of the remote endpoint for a * channel; this is intended for use by the lower layer. */ void channel_clear_identity_digest(channel_t *chan) { int state_not_in_map; tor_assert(chan); log_debug(LD_CHANNEL, "Clearing remote endpoint digest on channel %p with " "global ID " U64_FORMAT, chan, U64_PRINTF_ARG(chan->global_identifier)); state_not_in_map = CHANNEL_CONDEMNED(chan); if (!state_not_in_map && chan->registered && !tor_digest_is_zero(chan->identity_digest)) /* if it's registered get it out of the digest map */ channel_remove_from_digest_map(chan); memset(chan->identity_digest, 0, sizeof(chan->identity_digest)); } /** * Set the identity_digest of a channel * * This function sets the identity digest of the remote endpoint for a * channel; this is intended for use by the lower layer. */ void channel_set_identity_digest(channel_t *chan, const char *identity_digest) { int was_in_digest_map, should_be_in_digest_map, state_not_in_map; tor_assert(chan); log_debug(LD_CHANNEL, "Setting remote endpoint digest on channel %p with " "global ID " U64_FORMAT " to digest %s", chan, U64_PRINTF_ARG(chan->global_identifier), identity_digest ? hex_str(identity_digest, DIGEST_LEN) : "(null)"); state_not_in_map = CHANNEL_CONDEMNED(chan); was_in_digest_map = !state_not_in_map && chan->registered && !tor_digest_is_zero(chan->identity_digest); should_be_in_digest_map = !state_not_in_map && chan->registered && (identity_digest && !tor_digest_is_zero(identity_digest)); if (was_in_digest_map) /* We should always remove it; we'll add it back if we're writing * in a new digest. */ channel_remove_from_digest_map(chan); if (identity_digest) { memcpy(chan->identity_digest, identity_digest, sizeof(chan->identity_digest)); } else { memset(chan->identity_digest, 0, sizeof(chan->identity_digest)); } /* Put it in the digest map if we should */ if (should_be_in_digest_map) channel_add_to_digest_map(chan); } /** * Clear the remote end metadata (identity_digest/nickname) of a channel * * This function clears all the remote end info from a channel; this is * intended for use by the lower layer. */ void channel_clear_remote_end(channel_t *chan) { int state_not_in_map; tor_assert(chan); log_debug(LD_CHANNEL, "Clearing remote endpoint identity on channel %p with " "global ID " U64_FORMAT, chan, U64_PRINTF_ARG(chan->global_identifier)); state_not_in_map = CHANNEL_CONDEMNED(chan); if (!state_not_in_map && chan->registered && !tor_digest_is_zero(chan->identity_digest)) /* if it's registered get it out of the digest map */ channel_remove_from_digest_map(chan); memset(chan->identity_digest, 0, sizeof(chan->identity_digest)); tor_free(chan->nickname); } /** * Set the remote end metadata (identity_digest/nickname) of a channel * * This function sets new remote end info on a channel; this is intended * for use by the lower layer. */ void channel_set_remote_end(channel_t *chan, const char *identity_digest, const char *nickname) { int was_in_digest_map, should_be_in_digest_map, state_not_in_map; tor_assert(chan); log_debug(LD_CHANNEL, "Setting remote endpoint identity on channel %p with " "global ID " U64_FORMAT " to nickname %s, digest %s", chan, U64_PRINTF_ARG(chan->global_identifier), nickname ? nickname : "(null)", identity_digest ? hex_str(identity_digest, DIGEST_LEN) : "(null)"); state_not_in_map = CHANNEL_CONDEMNED(chan); was_in_digest_map = !state_not_in_map && chan->registered && !tor_digest_is_zero(chan->identity_digest); should_be_in_digest_map = !state_not_in_map && chan->registered && (identity_digest && !tor_digest_is_zero(identity_digest)); if (was_in_digest_map) /* We should always remove it; we'll add it back if we're writing * in a new digest. */ channel_remove_from_digest_map(chan); if (identity_digest) { memcpy(chan->identity_digest, identity_digest, sizeof(chan->identity_digest)); } else { memset(chan->identity_digest, 0, sizeof(chan->identity_digest)); } tor_free(chan->nickname); if (nickname) chan->nickname = tor_strdup(nickname); /* Put it in the digest map if we should */ if (should_be_in_digest_map) channel_add_to_digest_map(chan); } /** * Duplicate a cell queue entry; this is a shallow copy intended for use * in channel_write_cell_queue_entry(). */ static cell_queue_entry_t * cell_queue_entry_dup(cell_queue_entry_t *q) { cell_queue_entry_t *rv = NULL; tor_assert(q); rv = tor_malloc(sizeof(*rv)); memcpy(rv, q, sizeof(*rv)); return rv; } /** * Free a cell_queue_entry_t; the handed_off parameter indicates whether * the contents were passed to the lower layer (it is responsible for * them) or not (we should free). */ STATIC void cell_queue_entry_free(cell_queue_entry_t *q, int handed_off) { if (!q) return; if (!handed_off) { /* * If we handed it off, the recipient becomes responsible (or * with packed cells the channel_t subclass calls packed_cell * free after writing out its contents; see, e.g., * channel_tls_write_packed_cell_method(). Otherwise, we have * to take care of it here if possible. */ switch (q->type) { case CELL_QUEUE_FIXED: if (q->u.fixed.cell) { /* * There doesn't seem to be a cell_free() function anywhere in the * pre-channel code; just use tor_free() */ tor_free(q->u.fixed.cell); } break; case CELL_QUEUE_PACKED: if (q->u.packed.packed_cell) { packed_cell_free(q->u.packed.packed_cell); } break; case CELL_QUEUE_VAR: if (q->u.var.var_cell) { /* * This one's in connection_or.c; it'd be nice to figure out the * whole flow of cells from one end to the other and factor the * cell memory management functions like this out of the specific * TLS lower layer. */ var_cell_free(q->u.var.var_cell); } break; default: /* * Nothing we can do if we don't know the type; this will * have been warned about elsewhere. */ break; } } tor_free(q); } #if 0 /** * Check whether a cell queue entry is padding; this is a helper function * for channel_write_cell_queue_entry() */ static int cell_queue_entry_is_padding(cell_queue_entry_t *q) { tor_assert(q); if (q->type == CELL_QUEUE_FIXED) { if (q->u.fixed.cell) { if (q->u.fixed.cell->command == CELL_PADDING || q->u.fixed.cell->command == CELL_VPADDING) { return 1; } } } else if (q->type == CELL_QUEUE_VAR) { if (q->u.var.var_cell) { if (q->u.var.var_cell->command == CELL_PADDING || q->u.var.var_cell->command == CELL_VPADDING) { return 1; } } } return 0; } #endif /** * Allocate a new cell queue entry for a fixed-size cell */ static cell_queue_entry_t * cell_queue_entry_new_fixed(cell_t *cell) { cell_queue_entry_t *q = NULL; tor_assert(cell); q = tor_malloc(sizeof(*q)); q->type = CELL_QUEUE_FIXED; q->u.fixed.cell = cell; return q; } /** * Allocate a new cell queue entry for a variable-size cell */ static cell_queue_entry_t * cell_queue_entry_new_var(var_cell_t *var_cell) { cell_queue_entry_t *q = NULL; tor_assert(var_cell); q = tor_malloc(sizeof(*q)); q->type = CELL_QUEUE_VAR; q->u.var.var_cell = var_cell; return q; } /** * Ask how big the cell contained in a cell_queue_entry_t is */ static size_t channel_get_cell_queue_entry_size(channel_t *chan, cell_queue_entry_t *q) { size_t rv = 0; tor_assert(chan); tor_assert(q); switch (q->type) { case CELL_QUEUE_FIXED: rv = get_cell_network_size(chan->wide_circ_ids); break; case CELL_QUEUE_VAR: rv = get_var_cell_header_size(chan->wide_circ_ids) + (q->u.var.var_cell ? q->u.var.var_cell->payload_len : 0); break; case CELL_QUEUE_PACKED: rv = get_cell_network_size(chan->wide_circ_ids); break; default: tor_assert(1); } return rv; } /** * Write to a channel based on a cell_queue_entry_t * * Given a cell_queue_entry_t filled out by the caller, try to send the cell * and queue it if we can't. */ static void channel_write_cell_queue_entry(channel_t *chan, cell_queue_entry_t *q) { int result = 0, sent = 0; cell_queue_entry_t *tmp = NULL; size_t cell_bytes; tor_assert(chan); tor_assert(q); /* Assert that the state makes sense for a cell write */ tor_assert(CHANNEL_CAN_HANDLE_CELLS(chan)); { circid_t circ_id; if (is_destroy_cell(chan, q, &circ_id)) { channel_note_destroy_not_pending(chan, circ_id); } } /* For statistical purposes, figure out how big this cell is */ cell_bytes = channel_get_cell_queue_entry_size(chan, q); /* Can we send it right out? If so, try */ if (TOR_SIMPLEQ_EMPTY(&chan->outgoing_queue) && CHANNEL_IS_OPEN(chan)) { /* Pick the right write function for this cell type and save the result */ switch (q->type) { case CELL_QUEUE_FIXED: tor_assert(chan->write_cell); tor_assert(q->u.fixed.cell); result = chan->write_cell(chan, q->u.fixed.cell); break; case CELL_QUEUE_PACKED: tor_assert(chan->write_packed_cell); tor_assert(q->u.packed.packed_cell); result = chan->write_packed_cell(chan, q->u.packed.packed_cell); break; case CELL_QUEUE_VAR: tor_assert(chan->write_var_cell); tor_assert(q->u.var.var_cell); result = chan->write_var_cell(chan, q->u.var.var_cell); break; default: tor_assert(1); } /* Check if we got it out */ if (result > 0) { sent = 1; /* Timestamp for transmission */ channel_timestamp_xmit(chan); /* If we're here the queue is empty, so it's drained too */ channel_timestamp_drained(chan); /* Update the counter */ ++(chan->n_cells_xmitted); chan->n_bytes_xmitted += cell_bytes; /* Update global counters */ ++n_channel_cells_queued; ++n_channel_cells_passed_to_lower_layer; n_channel_bytes_queued += cell_bytes; n_channel_bytes_passed_to_lower_layer += cell_bytes; channel_assert_counter_consistency(); } } if (!sent) { /* Not sent, queue it */ /* * We have to copy the queue entry passed in, since the caller probably * used the stack. */ tmp = cell_queue_entry_dup(q); TOR_SIMPLEQ_INSERT_TAIL(&chan->outgoing_queue, tmp, next); /* Update global counters */ ++n_channel_cells_queued; ++n_channel_cells_in_queues; n_channel_bytes_queued += cell_bytes; n_channel_bytes_in_queues += cell_bytes; channel_assert_counter_consistency(); /* Update channel queue size */ chan->bytes_in_queue += cell_bytes; /* Try to process the queue? */ if (CHANNEL_IS_OPEN(chan)) channel_flush_cells(chan); } } /** * Write a cell to a channel * * Write a fixed-length cell to a channel using the write_cell() method. * This is equivalent to the pre-channels connection_or_write_cell_to_buf(); * it is called by the transport-independent code to deliver a cell to a * channel for transmission. */ void channel_write_cell(channel_t *chan, cell_t *cell) { cell_queue_entry_t q; tor_assert(chan); tor_assert(cell); if (CHANNEL_IS_CLOSING(chan)) { log_debug(LD_CHANNEL, "Discarding cell_t %p on closing channel %p with " "global ID "U64_FORMAT, cell, chan, U64_PRINTF_ARG(chan->global_identifier)); tor_free(cell); return; } log_debug(LD_CHANNEL, "Writing cell_t %p to channel %p with global ID " U64_FORMAT, cell, chan, U64_PRINTF_ARG(chan->global_identifier)); q.type = CELL_QUEUE_FIXED; q.u.fixed.cell = cell; channel_write_cell_queue_entry(chan, &q); /* Update the queue size estimate */ channel_update_xmit_queue_size(chan); } /** * Write a packed cell to a channel * * Write a packed cell to a channel using the write_cell() method. This is * called by the transport-independent code to deliver a packed cell to a * channel for transmission. */ void channel_write_packed_cell(channel_t *chan, packed_cell_t *packed_cell) { cell_queue_entry_t q; tor_assert(chan); tor_assert(packed_cell); if (CHANNEL_IS_CLOSING(chan)) { log_debug(LD_CHANNEL, "Discarding packed_cell_t %p on closing channel %p " "with global ID "U64_FORMAT, packed_cell, chan, U64_PRINTF_ARG(chan->global_identifier)); packed_cell_free(packed_cell); return; } log_debug(LD_CHANNEL, "Writing packed_cell_t %p to channel %p with global ID " U64_FORMAT, packed_cell, chan, U64_PRINTF_ARG(chan->global_identifier)); q.type = CELL_QUEUE_PACKED; q.u.packed.packed_cell = packed_cell; channel_write_cell_queue_entry(chan, &q); /* Update the queue size estimate */ channel_update_xmit_queue_size(chan); } /** * Write a variable-length cell to a channel * * Write a variable-length cell to a channel using the write_cell() method. * This is equivalent to the pre-channels * connection_or_write_var_cell_to_buf(); it's called by the transport- * independent code to deliver a var_cell to a channel for transmission. */ void channel_write_var_cell(channel_t *chan, var_cell_t *var_cell) { cell_queue_entry_t q; tor_assert(chan); tor_assert(var_cell); if (CHANNEL_IS_CLOSING(chan)) { log_debug(LD_CHANNEL, "Discarding var_cell_t %p on closing channel %p " "with global ID "U64_FORMAT, var_cell, chan, U64_PRINTF_ARG(chan->global_identifier)); var_cell_free(var_cell); return; } log_debug(LD_CHANNEL, "Writing var_cell_t %p to channel %p with global ID " U64_FORMAT, var_cell, chan, U64_PRINTF_ARG(chan->global_identifier)); q.type = CELL_QUEUE_VAR; q.u.var.var_cell = var_cell; channel_write_cell_queue_entry(chan, &q); /* Update the queue size estimate */ channel_update_xmit_queue_size(chan); } /** * Change channel state * * This internal and subclass use only function is used to change channel * state, performing all transition validity checks and whatever actions * are appropriate to the state transition in question. */ void channel_change_state(channel_t *chan, channel_state_t to_state) { channel_state_t from_state; unsigned char was_active, is_active; unsigned char was_in_id_map, is_in_id_map; tor_assert(chan); from_state = chan->state; tor_assert(channel_state_is_valid(from_state)); tor_assert(channel_state_is_valid(to_state)); tor_assert(channel_state_can_transition(chan->state, to_state)); /* Check for no-op transitions */ if (from_state == to_state) { log_debug(LD_CHANNEL, "Got no-op transition from \"%s\" to itself on channel %p" "(global ID " U64_FORMAT ")", channel_state_to_string(to_state), chan, U64_PRINTF_ARG(chan->global_identifier)); return; } /* If we're going to a closing or closed state, we must have a reason set */ if (to_state == CHANNEL_STATE_CLOSING || to_state == CHANNEL_STATE_CLOSED || to_state == CHANNEL_STATE_ERROR) { tor_assert(chan->reason_for_closing != CHANNEL_NOT_CLOSING); } /* * We need to maintain the queues here for some transitions: * when we enter CHANNEL_STATE_OPEN (especially from CHANNEL_STATE_MAINT) * we may have a backlog of cells to transmit, so drain the queues in * that case, and when going to CHANNEL_STATE_CLOSED the subclass * should have made sure to finish sending things (or gone to * CHANNEL_STATE_ERROR if not possible), so we assert for that here. */ log_debug(LD_CHANNEL, "Changing state of channel %p (global ID " U64_FORMAT ") from \"%s\" to \"%s\"", chan, U64_PRINTF_ARG(chan->global_identifier), channel_state_to_string(chan->state), channel_state_to_string(to_state)); chan->state = to_state; /* Need to add to the right lists if the channel is registered */ if (chan->registered) { was_active = !(from_state == CHANNEL_STATE_CLOSED || from_state == CHANNEL_STATE_ERROR); is_active = !(to_state == CHANNEL_STATE_CLOSED || to_state == CHANNEL_STATE_ERROR); /* Need to take off active list and put on finished list? */ if (was_active && !is_active) { if (active_channels) smartlist_remove(active_channels, chan); if (!finished_channels) finished_channels = smartlist_new(); smartlist_add(finished_channels, chan); } /* Need to put on active list? */ else if (!was_active && is_active) { if (finished_channels) smartlist_remove(finished_channels, chan); if (!active_channels) active_channels = smartlist_new(); smartlist_add(active_channels, chan); } if (!tor_digest_is_zero(chan->identity_digest)) { /* Now we need to handle the identity map */ was_in_id_map = !(from_state == CHANNEL_STATE_CLOSING || from_state == CHANNEL_STATE_CLOSED || from_state == CHANNEL_STATE_ERROR); is_in_id_map = !(to_state == CHANNEL_STATE_CLOSING || to_state == CHANNEL_STATE_CLOSED || to_state == CHANNEL_STATE_ERROR); if (!was_in_id_map && is_in_id_map) channel_add_to_digest_map(chan); else if (was_in_id_map && !is_in_id_map) channel_remove_from_digest_map(chan); } } /* * If we're going to a closed/closing state, we don't need scheduling any * more; in CHANNEL_STATE_MAINT we can't accept writes. */ if (to_state == CHANNEL_STATE_CLOSING || to_state == CHANNEL_STATE_CLOSED || to_state == CHANNEL_STATE_ERROR) { scheduler_release_channel(chan); } else if (to_state == CHANNEL_STATE_MAINT) { scheduler_channel_doesnt_want_writes(chan); } /* * If we're closing, this channel no longer counts toward the global * estimated queue size; if we're open, it now does. */ if ((to_state == CHANNEL_STATE_CLOSING || to_state == CHANNEL_STATE_CLOSED || to_state == CHANNEL_STATE_ERROR) && (from_state == CHANNEL_STATE_OPEN || from_state == CHANNEL_STATE_MAINT)) { estimated_total_queue_size -= chan->bytes_in_queue; } /* * If we're opening, this channel now does count toward the global * estimated queue size. */ if ((to_state == CHANNEL_STATE_OPEN || to_state == CHANNEL_STATE_MAINT) && !(from_state == CHANNEL_STATE_OPEN || from_state == CHANNEL_STATE_MAINT)) { estimated_total_queue_size += chan->bytes_in_queue; } /* Tell circuits if we opened and stuff */ if (to_state == CHANNEL_STATE_OPEN) { channel_do_open_actions(chan); chan->has_been_open = 1; /* Check for queued cells to process */ if (! TOR_SIMPLEQ_EMPTY(&chan->incoming_queue)) channel_process_cells(chan); if (! TOR_SIMPLEQ_EMPTY(&chan->outgoing_queue)) channel_flush_cells(chan); } else if (to_state == CHANNEL_STATE_CLOSED || to_state == CHANNEL_STATE_ERROR) { /* Assert that all queues are empty */ tor_assert(TOR_SIMPLEQ_EMPTY(&chan->incoming_queue)); tor_assert(TOR_SIMPLEQ_EMPTY(&chan->outgoing_queue)); } } /** * Change channel listener state * * This internal and subclass use only function is used to change channel * listener state, performing all transition validity checks and whatever * actions are appropriate to the state transition in question. */ void channel_listener_change_state(channel_listener_t *chan_l, channel_listener_state_t to_state) { channel_listener_state_t from_state; unsigned char was_active, is_active; tor_assert(chan_l); from_state = chan_l->state; tor_assert(channel_listener_state_is_valid(from_state)); tor_assert(channel_listener_state_is_valid(to_state)); tor_assert(channel_listener_state_can_transition(chan_l->state, to_state)); /* Check for no-op transitions */ if (from_state == to_state) { log_debug(LD_CHANNEL, "Got no-op transition from \"%s\" to itself on channel " "listener %p (global ID " U64_FORMAT ")", channel_listener_state_to_string(to_state), chan_l, U64_PRINTF_ARG(chan_l->global_identifier)); return; } /* If we're going to a closing or closed state, we must have a reason set */ if (to_state == CHANNEL_LISTENER_STATE_CLOSING || to_state == CHANNEL_LISTENER_STATE_CLOSED || to_state == CHANNEL_LISTENER_STATE_ERROR) { tor_assert(chan_l->reason_for_closing != CHANNEL_LISTENER_NOT_CLOSING); } /* * We need to maintain the queues here for some transitions: * when we enter CHANNEL_STATE_OPEN (especially from CHANNEL_STATE_MAINT) * we may have a backlog of cells to transmit, so drain the queues in * that case, and when going to CHANNEL_STATE_CLOSED the subclass * should have made sure to finish sending things (or gone to * CHANNEL_STATE_ERROR if not possible), so we assert for that here. */ log_debug(LD_CHANNEL, "Changing state of channel listener %p (global ID " U64_FORMAT "from \"%s\" to \"%s\"", chan_l, U64_PRINTF_ARG(chan_l->global_identifier), channel_listener_state_to_string(chan_l->state), channel_listener_state_to_string(to_state)); chan_l->state = to_state; /* Need to add to the right lists if the channel listener is registered */ if (chan_l->registered) { was_active = !(from_state == CHANNEL_LISTENER_STATE_CLOSED || from_state == CHANNEL_LISTENER_STATE_ERROR); is_active = !(to_state == CHANNEL_LISTENER_STATE_CLOSED || to_state == CHANNEL_LISTENER_STATE_ERROR); /* Need to take off active list and put on finished list? */ if (was_active && !is_active) { if (active_listeners) smartlist_remove(active_listeners, chan_l); if (!finished_listeners) finished_listeners = smartlist_new(); smartlist_add(finished_listeners, chan_l); } /* Need to put on active list? */ else if (!was_active && is_active) { if (finished_listeners) smartlist_remove(finished_listeners, chan_l); if (!active_listeners) active_listeners = smartlist_new(); smartlist_add(active_listeners, chan_l); } } if (to_state == CHANNEL_LISTENER_STATE_CLOSED || to_state == CHANNEL_LISTENER_STATE_ERROR) { /* Assert that the queue is empty */ tor_assert(!(chan_l->incoming_list) || smartlist_len(chan_l->incoming_list) == 0); } } /** * Try to flush cells to the lower layer * * this is called by the lower layer to indicate that it wants more cells; * it will try to write up to num_cells cells from the channel's cell queue or * from circuits active on that channel, or as many as it has available if * num_cells == -1. */ #define MAX_CELLS_TO_GET_FROM_CIRCUITS_FOR_UNLIMITED 256 MOCK_IMPL(ssize_t, channel_flush_some_cells, (channel_t *chan, ssize_t num_cells)) { unsigned int unlimited = 0; ssize_t flushed = 0; int num_cells_from_circs, clamped_num_cells; int q_len_before, q_len_after; tor_assert(chan); if (num_cells < 0) unlimited = 1; if (!unlimited && num_cells <= flushed) goto done; /* If we aren't in CHANNEL_STATE_OPEN, nothing goes through */ if (CHANNEL_IS_OPEN(chan)) { /* Try to flush as much as we can that's already queued */ flushed += channel_flush_some_cells_from_outgoing_queue(chan, (unlimited ? -1 : num_cells - flushed)); if (!unlimited && num_cells <= flushed) goto done; if (circuitmux_num_cells(chan->cmux) > 0) { /* Calculate number of cells, including clamp */ if (unlimited) { clamped_num_cells = MAX_CELLS_TO_GET_FROM_CIRCUITS_FOR_UNLIMITED; } else { if (num_cells - flushed > MAX_CELLS_TO_GET_FROM_CIRCUITS_FOR_UNLIMITED) { clamped_num_cells = MAX_CELLS_TO_GET_FROM_CIRCUITS_FOR_UNLIMITED; } else { clamped_num_cells = (int)(num_cells - flushed); } } /* * Keep track of the change in queue size; we have to count cells * channel_flush_from_first_active_circuit() writes out directly, * but not double-count ones we might get later in * channel_flush_some_cells_from_outgoing_queue() */ q_len_before = chan_cell_queue_len(&(chan->outgoing_queue)); /* Try to get more cells from any active circuits */ num_cells_from_circs = channel_flush_from_first_active_circuit( chan, clamped_num_cells); q_len_after = chan_cell_queue_len(&(chan->outgoing_queue)); /* * If it claims we got some, adjust the flushed counter and consider * processing the queue again */ if (num_cells_from_circs > 0) { /* * Adjust flushed by the number of cells counted in * num_cells_from_circs that didn't go to the cell queue. */ if (q_len_after > q_len_before) { num_cells_from_circs -= (q_len_after - q_len_before); if (num_cells_from_circs < 0) num_cells_from_circs = 0; } flushed += num_cells_from_circs; /* Now process the queue if necessary */ if ((q_len_after > q_len_before) && (unlimited || (flushed < num_cells))) { flushed += channel_flush_some_cells_from_outgoing_queue(chan, (unlimited ? -1 : num_cells - flushed)); } } } } done: return flushed; } /** * Flush cells from just the channel's outgoing cell queue * * This gets called from channel_flush_some_cells() above to flush cells * just from the queue without trying for active_circuits. */ static ssize_t channel_flush_some_cells_from_outgoing_queue(channel_t *chan, ssize_t num_cells) { unsigned int unlimited = 0; ssize_t flushed = 0; cell_queue_entry_t *q = NULL; size_t cell_size; int free_q = 0, handed_off = 0; tor_assert(chan); tor_assert(chan->write_cell); tor_assert(chan->write_packed_cell); tor_assert(chan->write_var_cell); if (num_cells < 0) unlimited = 1; if (!unlimited && num_cells <= flushed) return 0; /* If we aren't in CHANNEL_STATE_OPEN, nothing goes through */ if (CHANNEL_IS_OPEN(chan)) { while ((unlimited || num_cells > flushed) && NULL != (q = TOR_SIMPLEQ_FIRST(&chan->outgoing_queue))) { free_q = 0; handed_off = 0; if (1) { /* Figure out how big it is for statistical purposes */ cell_size = channel_get_cell_queue_entry_size(chan, q); /* * Okay, we have a good queue entry, try to give it to the lower * layer. */ switch (q->type) { case CELL_QUEUE_FIXED: if (q->u.fixed.cell) { if (chan->write_cell(chan, q->u.fixed.cell)) { ++flushed; channel_timestamp_xmit(chan); ++(chan->n_cells_xmitted); chan->n_bytes_xmitted += cell_size; free_q = 1; handed_off = 1; } /* Else couldn't write it; leave it on the queue */ } else { /* This shouldn't happen */ log_info(LD_CHANNEL, "Saw broken cell queue entry of type CELL_QUEUE_FIXED " "with no cell on channel %p " "(global ID " U64_FORMAT ").", chan, U64_PRINTF_ARG(chan->global_identifier)); /* Throw it away */ free_q = 1; handed_off = 0; } break; case CELL_QUEUE_PACKED: if (q->u.packed.packed_cell) { if (chan->write_packed_cell(chan, q->u.packed.packed_cell)) { ++flushed; channel_timestamp_xmit(chan); ++(chan->n_cells_xmitted); chan->n_bytes_xmitted += cell_size; free_q = 1; handed_off = 1; } /* Else couldn't write it; leave it on the queue */ } else { /* This shouldn't happen */ log_info(LD_CHANNEL, "Saw broken cell queue entry of type CELL_QUEUE_PACKED " "with no cell on channel %p " "(global ID " U64_FORMAT ").", chan, U64_PRINTF_ARG(chan->global_identifier)); /* Throw it away */ free_q = 1; handed_off = 0; } break; case CELL_QUEUE_VAR: if (q->u.var.var_cell) { if (chan->write_var_cell(chan, q->u.var.var_cell)) { ++flushed; channel_timestamp_xmit(chan); ++(chan->n_cells_xmitted); chan->n_bytes_xmitted += cell_size; free_q = 1; handed_off = 1; } /* Else couldn't write it; leave it on the queue */ } else { /* This shouldn't happen */ log_info(LD_CHANNEL, "Saw broken cell queue entry of type CELL_QUEUE_VAR " "with no cell on channel %p " "(global ID " U64_FORMAT ").", chan, U64_PRINTF_ARG(chan->global_identifier)); /* Throw it away */ free_q = 1; handed_off = 0; } break; default: /* Unknown type, log and free it */ log_info(LD_CHANNEL, "Saw an unknown cell queue entry type %d on channel %p " "(global ID " U64_FORMAT "; ignoring it." " Someone should fix this.", q->type, chan, U64_PRINTF_ARG(chan->global_identifier)); free_q = 1; handed_off = 0; } /* * if free_q is set, we used it and should remove the queue entry; * we have to do the free down here so TOR_SIMPLEQ_REMOVE_HEAD isn't * accessing freed memory */ if (free_q) { TOR_SIMPLEQ_REMOVE_HEAD(&chan->outgoing_queue, next); /* * ...and we handed a cell off to the lower layer, so we should * update the counters. */ ++n_channel_cells_passed_to_lower_layer; --n_channel_cells_in_queues; n_channel_bytes_passed_to_lower_layer += cell_size; n_channel_bytes_in_queues -= cell_size; channel_assert_counter_consistency(); /* Update the channel's queue size too */ chan->bytes_in_queue -= cell_size; /* Finally, free q */ cell_queue_entry_free(q, handed_off); q = NULL; } /* No cell removed from list, so we can't go on any further */ else break; } } } /* Did we drain the queue? */ if (TOR_SIMPLEQ_EMPTY(&chan->outgoing_queue)) { channel_timestamp_drained(chan); } /* Update the estimate queue size */ channel_update_xmit_queue_size(chan); return flushed; } /** * Flush as many cells as we possibly can from the queue * * This tries to flush as many cells from the queue as the lower layer * will take. It just calls channel_flush_some_cells_from_outgoing_queue() * in unlimited mode. */ void channel_flush_cells(channel_t *chan) { channel_flush_some_cells_from_outgoing_queue(chan, -1); } /** * Check if any cells are available * * This gets used from the lower layer to check if any more cells are * available. */ int channel_more_to_flush(channel_t *chan) { tor_assert(chan); /* Check if we have any queued */ if (! TOR_SIMPLEQ_EMPTY(&chan->incoming_queue)) return 1; /* Check if any circuits would like to queue some */ if (circuitmux_num_cells(chan->cmux) > 0) return 1; /* Else no */ return 0; } /** * Notify the channel we're done flushing the output in the lower layer * * Connection.c will call this when we've flushed the output; there's some * dirreq-related maintenance to do. */ void channel_notify_flushed(channel_t *chan) { tor_assert(chan); if (chan->dirreq_id != 0) geoip_change_dirreq_state(chan->dirreq_id, DIRREQ_TUNNELED, DIRREQ_CHANNEL_BUFFER_FLUSHED); } /** * Process the queue of incoming channels on a listener * * Use a listener's registered callback to process as many entries in the * queue of incoming channels as possible. */ void channel_listener_process_incoming(channel_listener_t *listener) { tor_assert(listener); /* * CHANNEL_LISTENER_STATE_CLOSING permitted because we drain the queue * while closing a listener. */ tor_assert(listener->state == CHANNEL_LISTENER_STATE_LISTENING || listener->state == CHANNEL_LISTENER_STATE_CLOSING); tor_assert(listener->listener); log_debug(LD_CHANNEL, "Processing queue of incoming connections for channel " "listener %p (global ID " U64_FORMAT ")", listener, U64_PRINTF_ARG(listener->global_identifier)); if (!(listener->incoming_list)) return; SMARTLIST_FOREACH_BEGIN(listener->incoming_list, channel_t *, chan) { tor_assert(chan); log_debug(LD_CHANNEL, "Handling incoming channel %p (" U64_FORMAT ") " "for listener %p (" U64_FORMAT ")", chan, U64_PRINTF_ARG(chan->global_identifier), listener, U64_PRINTF_ARG(listener->global_identifier)); /* Make sure this is set correctly */ channel_mark_incoming(chan); listener->listener(listener, chan); } SMARTLIST_FOREACH_END(chan); smartlist_free(listener->incoming_list); listener->incoming_list = NULL; } /** * Take actions required when a channel becomes open * * Handle actions we should do when we know a channel is open; a lot of * this comes from the old connection_or_set_state_open() of connection_or.c. * * Because of this mechanism, future channel_t subclasses should take care * not to change a channel to from CHANNEL_STATE_OPENING to CHANNEL_STATE_OPEN * until there is positive confirmation that the network is operational. * In particular, anything UDP-based should not make this transition until a * packet is received from the other side. */ void channel_do_open_actions(channel_t *chan) { tor_addr_t remote_addr; int started_here; time_t now = time(NULL); int close_origin_circuits = 0; tor_assert(chan); started_here = channel_is_outgoing(chan); if (started_here) { circuit_build_times_network_is_live(get_circuit_build_times_mutable()); rep_hist_note_connect_succeeded(chan->identity_digest, now); if (entry_guard_register_connect_status( chan->identity_digest, 1, 0, now) < 0) { /* Close any circuits pending on this channel. We leave it in state * 'open' though, because it didn't actually *fail* -- we just * chose not to use it. */ log_debug(LD_OR, "New entry guard was reachable, but closing this " "connection so we can retry the earlier entry guards."); close_origin_circuits = 1; } router_set_status(chan->identity_digest, 1); } else { /* only report it to the geoip module if it's not a known router */ if (!router_get_by_id_digest(chan->identity_digest)) { if (channel_get_addr_if_possible(chan, &remote_addr)) { char *transport_name = NULL; if (chan->get_transport_name(chan, &transport_name) < 0) transport_name = NULL; geoip_note_client_seen(GEOIP_CLIENT_CONNECT, &remote_addr, transport_name, now); tor_free(transport_name); } /* Otherwise the underlying transport can't tell us this, so skip it */ } } circuit_n_chan_done(chan, 1, close_origin_circuits); } /** * Queue an incoming channel on a listener * * Internal and subclass use only function to queue an incoming channel from * a listener. A subclass of channel_listener_t should call this when a new * incoming channel is created. */ void channel_listener_queue_incoming(channel_listener_t *listener, channel_t *incoming) { int need_to_queue = 0; tor_assert(listener); tor_assert(listener->state == CHANNEL_LISTENER_STATE_LISTENING); tor_assert(incoming); log_debug(LD_CHANNEL, "Queueing incoming channel %p (global ID " U64_FORMAT ") on " "channel listener %p (global ID " U64_FORMAT ")", incoming, U64_PRINTF_ARG(incoming->global_identifier), listener, U64_PRINTF_ARG(listener->global_identifier)); /* Do we need to queue it, or can we just call the listener right away? */ if (!(listener->listener)) need_to_queue = 1; if (listener->incoming_list && (smartlist_len(listener->incoming_list) > 0)) need_to_queue = 1; /* If we need to queue and have no queue, create one */ if (need_to_queue && !(listener->incoming_list)) { listener->incoming_list = smartlist_new(); } /* Bump the counter and timestamp it */ channel_listener_timestamp_active(listener); channel_listener_timestamp_accepted(listener); ++(listener->n_accepted); /* If we don't need to queue, process it right away */ if (!need_to_queue) { tor_assert(listener->listener); listener->listener(listener, incoming); } /* * Otherwise, we need to queue; queue and then process the queue if * we can. */ else { tor_assert(listener->incoming_list); smartlist_add(listener->incoming_list, incoming); if (listener->listener) channel_listener_process_incoming(listener); } } /** * Process queued incoming cells * * Process as many queued cells as we can from the incoming * cell queue. */ void channel_process_cells(channel_t *chan) { cell_queue_entry_t *q; tor_assert(chan); tor_assert(CHANNEL_IS_CLOSING(chan) || CHANNEL_IS_MAINT(chan) || CHANNEL_IS_OPEN(chan)); log_debug(LD_CHANNEL, "Processing as many incoming cells as we can for channel %p", chan); /* Nothing we can do if we have no registered cell handlers */ if (!(chan->cell_handler || chan->var_cell_handler)) return; /* Nothing we can do if we have no cells */ if (TOR_SIMPLEQ_EMPTY(&chan->incoming_queue)) return; /* * Process cells until we're done or find one we have no current handler * for. * * We must free the cells here after calling the handler, since custody * of the buffer was given to the channel layer when they were queued; * see comments on memory management in channel_queue_cell() and in * channel_queue_var_cell() below. */ while (NULL != (q = TOR_SIMPLEQ_FIRST(&chan->incoming_queue))) { tor_assert(q); tor_assert(q->type == CELL_QUEUE_FIXED || q->type == CELL_QUEUE_VAR); if (q->type == CELL_QUEUE_FIXED && chan->cell_handler) { /* Handle a fixed-length cell */ TOR_SIMPLEQ_REMOVE_HEAD(&chan->incoming_queue, next); tor_assert(q->u.fixed.cell); log_debug(LD_CHANNEL, "Processing incoming cell_t %p for channel %p (global ID " U64_FORMAT ")", q->u.fixed.cell, chan, U64_PRINTF_ARG(chan->global_identifier)); chan->cell_handler(chan, q->u.fixed.cell); tor_free(q->u.fixed.cell); tor_free(q); } else if (q->type == CELL_QUEUE_VAR && chan->var_cell_handler) { /* Handle a variable-length cell */ TOR_SIMPLEQ_REMOVE_HEAD(&chan->incoming_queue, next); tor_assert(q->u.var.var_cell); log_debug(LD_CHANNEL, "Processing incoming var_cell_t %p for channel %p (global ID " U64_FORMAT ")", q->u.var.var_cell, chan, U64_PRINTF_ARG(chan->global_identifier)); chan->var_cell_handler(chan, q->u.var.var_cell); tor_free(q->u.var.var_cell); tor_free(q); } else { /* Can't handle this one */ break; } } } /** * Queue incoming cell * * This should be called by a channel_t subclass to queue an incoming fixed- * length cell for processing, and process it if possible. */ void channel_queue_cell(channel_t *chan, cell_t *cell) { int need_to_queue = 0; cell_queue_entry_t *q; cell_t *cell_copy = NULL; tor_assert(chan); tor_assert(cell); tor_assert(CHANNEL_IS_OPEN(chan)); /* Do we need to queue it, or can we just call the handler right away? */ if (!(chan->cell_handler)) need_to_queue = 1; if (! TOR_SIMPLEQ_EMPTY(&chan->incoming_queue)) need_to_queue = 1; /* Timestamp for receiving */ channel_timestamp_recv(chan); /* Update the counters */ ++(chan->n_cells_recved); chan->n_bytes_recved += get_cell_network_size(chan->wide_circ_ids); /* If we don't need to queue we can just call cell_handler */ if (!need_to_queue) { tor_assert(chan->cell_handler); log_debug(LD_CHANNEL, "Directly handling incoming cell_t %p for channel %p " "(global ID " U64_FORMAT ")", cell, chan, U64_PRINTF_ARG(chan->global_identifier)); chan->cell_handler(chan, cell); } else { /* * Otherwise queue it and then process the queue if possible. * * We queue a copy, not the original pointer - it might have been on the * stack in connection_or_process_cells_from_inbuf() (or another caller * if we ever have a subclass other than channel_tls_t), or be freed * there after we return. This is the uncommon case; the non-copying * fast path occurs in the if (!need_to_queue) case above when the * upper layer has installed cell handlers. */ cell_copy = tor_malloc_zero(sizeof(cell_t)); memcpy(cell_copy, cell, sizeof(cell_t)); q = cell_queue_entry_new_fixed(cell_copy); log_debug(LD_CHANNEL, "Queueing incoming cell_t %p for channel %p " "(global ID " U64_FORMAT ")", cell, chan, U64_PRINTF_ARG(chan->global_identifier)); TOR_SIMPLEQ_INSERT_TAIL(&chan->incoming_queue, q, next); if (chan->cell_handler || chan->var_cell_handler) { channel_process_cells(chan); } } } /** * Queue incoming variable-length cell * * This should be called by a channel_t subclass to queue an incoming * variable-length cell for processing, and process it if possible. */ void channel_queue_var_cell(channel_t *chan, var_cell_t *var_cell) { int need_to_queue = 0; cell_queue_entry_t *q; var_cell_t *cell_copy = NULL; tor_assert(chan); tor_assert(var_cell); tor_assert(CHANNEL_IS_OPEN(chan)); /* Do we need to queue it, or can we just call the handler right away? */ if (!(chan->var_cell_handler)) need_to_queue = 1; if (! TOR_SIMPLEQ_EMPTY(&chan->incoming_queue)) need_to_queue = 1; /* Timestamp for receiving */ channel_timestamp_recv(chan); /* Update the counter */ ++(chan->n_cells_recved); chan->n_bytes_recved += get_var_cell_header_size(chan->wide_circ_ids) + var_cell->payload_len; /* If we don't need to queue we can just call cell_handler */ if (!need_to_queue) { tor_assert(chan->var_cell_handler); log_debug(LD_CHANNEL, "Directly handling incoming var_cell_t %p for channel %p " "(global ID " U64_FORMAT ")", var_cell, chan, U64_PRINTF_ARG(chan->global_identifier)); chan->var_cell_handler(chan, var_cell); } else { /* * Otherwise queue it and then process the queue if possible. * * We queue a copy, not the original pointer - it might have been on the * stack in connection_or_process_cells_from_inbuf() (or another caller * if we ever have a subclass other than channel_tls_t), or be freed * there after we return. This is the uncommon case; the non-copying * fast path occurs in the if (!need_to_queue) case above when the * upper layer has installed cell handlers. */ cell_copy = var_cell_copy(var_cell); q = cell_queue_entry_new_var(cell_copy); log_debug(LD_CHANNEL, "Queueing incoming var_cell_t %p for channel %p " "(global ID " U64_FORMAT ")", var_cell, chan, U64_PRINTF_ARG(chan->global_identifier)); TOR_SIMPLEQ_INSERT_TAIL(&chan->incoming_queue, q, next); if (chan->cell_handler || chan->var_cell_handler) { channel_process_cells(chan); } } } /** If packed_cell on chan is a destroy cell, then set * *circid_out to its circuit ID, and return true. Otherwise, return * false. */ /* XXXX Move this function. */ int packed_cell_is_destroy(channel_t *chan, const packed_cell_t *packed_cell, circid_t *circid_out) { if (chan->wide_circ_ids) { if (packed_cell->body[4] == CELL_DESTROY) { *circid_out = ntohl(get_uint32(packed_cell->body)); return 1; } } else { if (packed_cell->body[2] == CELL_DESTROY) { *circid_out = ntohs(get_uint16(packed_cell->body)); return 1; } } return 0; } /** * Assert that the global channel stats counters are internally consistent */ static void channel_assert_counter_consistency(void) { tor_assert(n_channel_cells_queued == (n_channel_cells_in_queues + n_channel_cells_passed_to_lower_layer)); tor_assert(n_channel_bytes_queued == (n_channel_bytes_in_queues + n_channel_bytes_passed_to_lower_layer)); } /* DOCDOC */ static int is_destroy_cell(channel_t *chan, const cell_queue_entry_t *q, circid_t *circid_out) { *circid_out = 0; switch (q->type) { case CELL_QUEUE_FIXED: if (q->u.fixed.cell->command == CELL_DESTROY) { *circid_out = q->u.fixed.cell->circ_id; return 1; } break; case CELL_QUEUE_VAR: if (q->u.var.var_cell->command == CELL_DESTROY) { *circid_out = q->u.var.var_cell->circ_id; return 1; } break; case CELL_QUEUE_PACKED: return packed_cell_is_destroy(chan, q->u.packed.packed_cell, circid_out); } return 0; } /** * Send destroy cell on a channel * * Write a destroy cell with circ ID circ_id and reason reason * onto channel chan. Don't perform range-checking on reason: * we may want to propagate reasons from other cells. */ int channel_send_destroy(circid_t circ_id, channel_t *chan, int reason) { tor_assert(chan); if (circ_id == 0) { log_warn(LD_BUG, "Attempted to send a destroy cell for circID 0 " "on a channel " U64_FORMAT " at %p in state %s (%d)", U64_PRINTF_ARG(chan->global_identifier), chan, channel_state_to_string(chan->state), chan->state); return 0; } /* Check to make sure we can send on this channel first */ if (!CHANNEL_CONDEMNED(chan) && chan->cmux) { channel_note_destroy_pending(chan, circ_id); circuitmux_append_destroy_cell(chan, chan->cmux, circ_id, reason); log_debug(LD_OR, "Sending destroy (circID %u) on channel %p " "(global ID " U64_FORMAT ")", (unsigned)circ_id, chan, U64_PRINTF_ARG(chan->global_identifier)); } else { log_warn(LD_BUG, "Someone called channel_send_destroy() for circID %u " "on a channel " U64_FORMAT " at %p in state %s (%d)", (unsigned)circ_id, U64_PRINTF_ARG(chan->global_identifier), chan, channel_state_to_string(chan->state), chan->state); } return 0; } /** * Dump channel statistics to the log * * This is called from dumpstats() in main.c and spams the log with * statistics on channels. */ void channel_dumpstats(int severity) { if (all_channels && smartlist_len(all_channels) > 0) { tor_log(severity, LD_GENERAL, "Channels have queued " U64_FORMAT " bytes in " U64_FORMAT " cells, " "and handed " U64_FORMAT " bytes in " U64_FORMAT " cells to the lower" " layer.", U64_PRINTF_ARG(n_channel_bytes_queued), U64_PRINTF_ARG(n_channel_cells_queued), U64_PRINTF_ARG(n_channel_bytes_passed_to_lower_layer), U64_PRINTF_ARG(n_channel_cells_passed_to_lower_layer)); tor_log(severity, LD_GENERAL, "There are currently " U64_FORMAT " bytes in " U64_FORMAT " cells " "in channel queues.", U64_PRINTF_ARG(n_channel_bytes_in_queues), U64_PRINTF_ARG(n_channel_cells_in_queues)); tor_log(severity, LD_GENERAL, "Dumping statistics about %d channels:", smartlist_len(all_channels)); tor_log(severity, LD_GENERAL, "%d are active, and %d are done and waiting for cleanup", (active_channels != NULL) ? smartlist_len(active_channels) : 0, (finished_channels != NULL) ? smartlist_len(finished_channels) : 0); SMARTLIST_FOREACH(all_channels, channel_t *, chan, channel_dump_statistics(chan, severity)); tor_log(severity, LD_GENERAL, "Done spamming about channels now"); } else { tor_log(severity, LD_GENERAL, "No channels to dump"); } } /** * Dump channel listener statistics to the log * * This is called from dumpstats() in main.c and spams the log with * statistics on channel listeners. */ void channel_listener_dumpstats(int severity) { if (all_listeners && smartlist_len(all_listeners) > 0) { tor_log(severity, LD_GENERAL, "Dumping statistics about %d channel listeners:", smartlist_len(all_listeners)); tor_log(severity, LD_GENERAL, "%d are active and %d are done and waiting for cleanup", (active_listeners != NULL) ? smartlist_len(active_listeners) : 0, (finished_listeners != NULL) ? smartlist_len(finished_listeners) : 0); SMARTLIST_FOREACH(all_listeners, channel_listener_t *, chan_l, channel_listener_dump_statistics(chan_l, severity)); tor_log(severity, LD_GENERAL, "Done spamming about channel listeners now"); } else { tor_log(severity, LD_GENERAL, "No channel listeners to dump"); } } /** * Set the cmux policy on all active channels */ void channel_set_cmux_policy_everywhere(circuitmux_policy_t *pol) { if (!active_channels) return; SMARTLIST_FOREACH_BEGIN(active_channels, channel_t *, curr) { if (curr->cmux) { circuitmux_set_policy(curr->cmux, pol); } } SMARTLIST_FOREACH_END(curr); } /** * Clean up channels * * This gets called periodically from run_scheduled_events() in main.c; * it cleans up after closed channels. */ void channel_run_cleanup(void) { channel_t *tmp = NULL; /* Check if we need to do anything */ if (!finished_channels || smartlist_len(finished_channels) == 0) return; /* Iterate through finished_channels and get rid of them */ SMARTLIST_FOREACH_BEGIN(finished_channels, channel_t *, curr) { tmp = curr; /* Remove it from the list */ SMARTLIST_DEL_CURRENT(finished_channels, curr); /* Also unregister it */ channel_unregister(tmp); /* ... and free it */ channel_free(tmp); } SMARTLIST_FOREACH_END(curr); } /** * Clean up channel listeners * * This gets called periodically from run_scheduled_events() in main.c; * it cleans up after closed channel listeners. */ void channel_listener_run_cleanup(void) { channel_listener_t *tmp = NULL; /* Check if we need to do anything */ if (!finished_listeners || smartlist_len(finished_listeners) == 0) return; /* Iterate through finished_channels and get rid of them */ SMARTLIST_FOREACH_BEGIN(finished_listeners, channel_listener_t *, curr) { tmp = curr; /* Remove it from the list */ SMARTLIST_DEL_CURRENT(finished_listeners, curr); /* Also unregister it */ channel_listener_unregister(tmp); /* ... and free it */ channel_listener_free(tmp); } SMARTLIST_FOREACH_END(curr); } /** * Free a list of channels for channel_free_all() */ static void channel_free_list(smartlist_t *channels, int mark_for_close) { if (!channels) return; SMARTLIST_FOREACH_BEGIN(channels, channel_t *, curr) { /* Deregister and free it */ tor_assert(curr); log_debug(LD_CHANNEL, "Cleaning up channel %p (global ID " U64_FORMAT ") " "in state %s (%d)", curr, U64_PRINTF_ARG(curr->global_identifier), channel_state_to_string(curr->state), curr->state); /* Detach circuits early so they can find the channel */ if (curr->cmux) { circuitmux_detach_all_circuits(curr->cmux, NULL); } SMARTLIST_DEL_CURRENT(channels, curr); channel_unregister(curr); if (mark_for_close) { if (!CHANNEL_CONDEMNED(curr)) { channel_mark_for_close(curr); } channel_force_free(curr); } else channel_free(curr); } SMARTLIST_FOREACH_END(curr); } /** * Free a list of channel listeners for channel_free_all() */ static void channel_listener_free_list(smartlist_t *listeners, int mark_for_close) { if (!listeners) return; SMARTLIST_FOREACH_BEGIN(listeners, channel_listener_t *, curr) { /* Deregister and free it */ tor_assert(curr); log_debug(LD_CHANNEL, "Cleaning up channel listener %p (global ID " U64_FORMAT ") " "in state %s (%d)", curr, U64_PRINTF_ARG(curr->global_identifier), channel_listener_state_to_string(curr->state), curr->state); channel_listener_unregister(curr); if (mark_for_close) { if (!(curr->state == CHANNEL_LISTENER_STATE_CLOSING || curr->state == CHANNEL_LISTENER_STATE_CLOSED || curr->state == CHANNEL_LISTENER_STATE_ERROR)) { channel_listener_mark_for_close(curr); } channel_listener_force_free(curr); } else channel_listener_free(curr); } SMARTLIST_FOREACH_END(curr); } /** * Close all channels and free everything * * This gets called from tor_free_all() in main.c to clean up on exit. * It will close all registered channels and free associated storage, * then free the all_channels, active_channels, listening_channels and * finished_channels lists and also channel_identity_map. */ void channel_free_all(void) { log_debug(LD_CHANNEL, "Shutting down channels..."); /* First, let's go for finished channels */ if (finished_channels) { channel_free_list(finished_channels, 0); smartlist_free(finished_channels); finished_channels = NULL; } /* Now the finished listeners */ if (finished_listeners) { channel_listener_free_list(finished_listeners, 0); smartlist_free(finished_listeners); finished_listeners = NULL; } /* Now all active channels */ if (active_channels) { channel_free_list(active_channels, 1); smartlist_free(active_channels); active_channels = NULL; } /* Now all active listeners */ if (active_listeners) { channel_listener_free_list(active_listeners, 1); smartlist_free(active_listeners); active_listeners = NULL; } /* Now all channels, in case any are left over */ if (all_channels) { channel_free_list(all_channels, 1); smartlist_free(all_channels); all_channels = NULL; } /* Now all listeners, in case any are left over */ if (all_listeners) { channel_listener_free_list(all_listeners, 1); smartlist_free(all_listeners); all_listeners = NULL; } /* Now free channel_identity_map */ log_debug(LD_CHANNEL, "Freeing channel_identity_map"); /* Geez, anything still left over just won't die ... let it leak then */ HT_CLEAR(channel_idmap, &channel_identity_map); log_debug(LD_CHANNEL, "Done cleaning up after channels"); } /** * Connect to a given addr/port/digest * * This sets up a new outgoing channel; in the future if multiple * channel_t subclasses are available, this is where the selection policy * should go. It may also be desirable to fold port into tor_addr_t * or make a new type including a tor_addr_t and port, so we have a * single abstract object encapsulating all the protocol details of * how to contact an OR. */ channel_t * channel_connect(const tor_addr_t *addr, uint16_t port, const char *id_digest) { return channel_tls_connect(addr, port, id_digest); } /** * Decide which of two channels to prefer for extending a circuit * * This function is called while extending a circuit and returns true iff * a is 'better' than b. The most important criterion here is that a * canonical channel is always better than a non-canonical one, but the * number of circuits and the age are used as tie-breakers. * * This is based on the former connection_or_is_better() of connection_or.c */ int channel_is_better(time_t now, channel_t *a, channel_t *b, int forgive_new_connections) { int a_grace, b_grace; int a_is_canonical, b_is_canonical; int a_has_circs, b_has_circs; /* * Do not definitively deprecate a new channel with no circuits on it * until this much time has passed. */ #define NEW_CHAN_GRACE_PERIOD (15*60) tor_assert(a); tor_assert(b); /* Check if one is canonical and the other isn't first */ a_is_canonical = channel_is_canonical(a); b_is_canonical = channel_is_canonical(b); if (a_is_canonical && !b_is_canonical) return 1; if (!a_is_canonical && b_is_canonical) return 0; /* * Okay, if we're here they tied on canonicity. Next we check if * they have any circuits, and if one does and the other doesn't, * we prefer the one that does, unless we are forgiving and the * one that has no circuits is in its grace period. */ a_has_circs = (channel_num_circuits(a) > 0); b_has_circs = (channel_num_circuits(b) > 0); a_grace = (forgive_new_connections && (now < channel_when_created(a) + NEW_CHAN_GRACE_PERIOD)); b_grace = (forgive_new_connections && (now < channel_when_created(b) + NEW_CHAN_GRACE_PERIOD)); if (a_has_circs && !b_has_circs && !b_grace) return 1; if (!a_has_circs && b_has_circs && !a_grace) return 0; /* They tied on circuits too; just prefer whichever is newer */ if (channel_when_created(a) > channel_when_created(b)) return 1; else return 0; } /** * Get a channel to extend a circuit * * Pick a suitable channel to extend a circuit to given the desired digest * the address we believe is correct for that digest; this tries to see * if we already have one for the requested endpoint, but if there is no good * channel, set *msg_out to a message describing the channel's state * and our next action, and set *launch_out to a boolean indicated whether * the caller should try to launch a new channel with channel_connect(). */ channel_t * channel_get_for_extend(const char *digest, const tor_addr_t *target_addr, const char **msg_out, int *launch_out) { channel_t *chan, *best = NULL; int n_inprogress_goodaddr = 0, n_old = 0; int n_noncanonical = 0, n_possible = 0; time_t now = approx_time(); tor_assert(msg_out); tor_assert(launch_out); chan = channel_find_by_remote_digest(digest); /* Walk the list, unrefing the old one and refing the new at each * iteration. */ for (; chan; chan = channel_next_with_digest(chan)) { tor_assert(tor_memeq(chan->identity_digest, digest, DIGEST_LEN)); if (CHANNEL_CONDEMNED(chan)) continue; /* Never return a channel on which the other end appears to be * a client. */ if (channel_is_client(chan)) { continue; } /* Never return a non-open connection. */ if (!CHANNEL_IS_OPEN(chan)) { /* If the address matches, don't launch a new connection for this * circuit. */ if (channel_matches_target_addr_for_extend(chan, target_addr)) ++n_inprogress_goodaddr; continue; } /* Never return a connection that shouldn't be used for circs. */ if (channel_is_bad_for_new_circs(chan)) { ++n_old; continue; } /* Never return a non-canonical connection using a recent link protocol * if the address is not what we wanted. * * The channel_is_canonical_is_reliable() function asks the lower layer * if we should trust channel_is_canonical(). The below is from the * comments of the old circuit_or_get_for_extend() and applies when * the lower-layer transport is channel_tls_t. * * (For old link protocols, we can't rely on is_canonical getting * set properly if we're talking to the right address, since we might * have an out-of-date descriptor, and we will get no NETINFO cell to * tell us about the right address.) */ if (!channel_is_canonical(chan) && channel_is_canonical_is_reliable(chan) && !channel_matches_target_addr_for_extend(chan, target_addr)) { ++n_noncanonical; continue; } ++n_possible; if (!best) { best = chan; /* If we have no 'best' so far, this one is good enough. */ continue; } if (channel_is_better(now, chan, best, 0)) best = chan; } if (best) { *msg_out = "Connection is fine; using it."; *launch_out = 0; return best; } else if (n_inprogress_goodaddr) { *msg_out = "Connection in progress; waiting."; *launch_out = 0; return NULL; } else if (n_old || n_noncanonical) { *msg_out = "Connections all too old, or too non-canonical. " " Launching a new one."; *launch_out = 1; return NULL; } else { *msg_out = "Not connected. Connecting."; *launch_out = 1; return NULL; } } /** * Describe the transport subclass for a channel * * Invoke a method to get a string description of the lower-layer * transport for this channel. */ const char * channel_describe_transport(channel_t *chan) { tor_assert(chan); tor_assert(chan->describe_transport); return chan->describe_transport(chan); } /** * Describe the transport subclass for a channel listener * * Invoke a method to get a string description of the lower-layer * transport for this channel listener. */ const char * channel_listener_describe_transport(channel_listener_t *chan_l) { tor_assert(chan_l); tor_assert(chan_l->describe_transport); return chan_l->describe_transport(chan_l); } /** * Return the number of entries in queue */ STATIC int chan_cell_queue_len(const chan_cell_queue_t *queue) { int r = 0; cell_queue_entry_t *cell; TOR_SIMPLEQ_FOREACH(cell, queue, next) ++r; return r; } /** * Dump channel statistics * * Dump statistics for one channel to the log */ MOCK_IMPL(void, channel_dump_statistics, (channel_t *chan, int severity)) { double avg, interval, age; time_t now = time(NULL); tor_addr_t remote_addr; int have_remote_addr; char *remote_addr_str; tor_assert(chan); age = (double)(now - chan->timestamp_created); tor_log(severity, LD_GENERAL, "Channel " U64_FORMAT " (at %p) with transport %s is in state " "%s (%d)", U64_PRINTF_ARG(chan->global_identifier), chan, channel_describe_transport(chan), channel_state_to_string(chan->state), chan->state); tor_log(severity, LD_GENERAL, " * Channel " U64_FORMAT " was created at " U64_FORMAT " (" U64_FORMAT " seconds ago) " "and last active at " U64_FORMAT " (" U64_FORMAT " seconds ago)", U64_PRINTF_ARG(chan->global_identifier), U64_PRINTF_ARG(chan->timestamp_created), U64_PRINTF_ARG(now - chan->timestamp_created), U64_PRINTF_ARG(chan->timestamp_active), U64_PRINTF_ARG(now - chan->timestamp_active)); /* Handle digest and nickname */ if (!tor_digest_is_zero(chan->identity_digest)) { if (chan->nickname) { tor_log(severity, LD_GENERAL, " * Channel " U64_FORMAT " says it is connected " "to an OR with digest %s and nickname %s", U64_PRINTF_ARG(chan->global_identifier), hex_str(chan->identity_digest, DIGEST_LEN), chan->nickname); } else { tor_log(severity, LD_GENERAL, " * Channel " U64_FORMAT " says it is connected " "to an OR with digest %s and no known nickname", U64_PRINTF_ARG(chan->global_identifier), hex_str(chan->identity_digest, DIGEST_LEN)); } } else { if (chan->nickname) { tor_log(severity, LD_GENERAL, " * Channel " U64_FORMAT " does not know the digest" " of the OR it is connected to, but reports its nickname is %s", U64_PRINTF_ARG(chan->global_identifier), chan->nickname); } else { tor_log(severity, LD_GENERAL, " * Channel " U64_FORMAT " does not know the digest" " or the nickname of the OR it is connected to", U64_PRINTF_ARG(chan->global_identifier)); } } /* Handle remote address and descriptions */ have_remote_addr = channel_get_addr_if_possible(chan, &remote_addr); if (have_remote_addr) { char *actual = tor_strdup(channel_get_actual_remote_descr(chan)); remote_addr_str = tor_addr_to_str_dup(&remote_addr); tor_log(severity, LD_GENERAL, " * Channel " U64_FORMAT " says its remote address" " is %s, and gives a canonical description of \"%s\" and an " "actual description of \"%s\"", U64_PRINTF_ARG(chan->global_identifier), safe_str(remote_addr_str), safe_str(channel_get_canonical_remote_descr(chan)), safe_str(actual)); tor_free(remote_addr_str); tor_free(actual); } else { char *actual = tor_strdup(channel_get_actual_remote_descr(chan)); tor_log(severity, LD_GENERAL, " * Channel " U64_FORMAT " does not know its remote " "address, but gives a canonical description of \"%s\" and an " "actual description of \"%s\"", U64_PRINTF_ARG(chan->global_identifier), channel_get_canonical_remote_descr(chan), actual); tor_free(actual); } /* Handle marks */ tor_log(severity, LD_GENERAL, " * Channel " U64_FORMAT " has these marks: %s %s %s " "%s %s %s", U64_PRINTF_ARG(chan->global_identifier), channel_is_bad_for_new_circs(chan) ? "bad_for_new_circs" : "!bad_for_new_circs", channel_is_canonical(chan) ? "canonical" : "!canonical", channel_is_canonical_is_reliable(chan) ? "is_canonical_is_reliable" : "!is_canonical_is_reliable", channel_is_client(chan) ? "client" : "!client", channel_is_local(chan) ? "local" : "!local", channel_is_incoming(chan) ? "incoming" : "outgoing"); /* Describe queues */ tor_log(severity, LD_GENERAL, " * Channel " U64_FORMAT " has %d queued incoming cells" " and %d queued outgoing cells", U64_PRINTF_ARG(chan->global_identifier), chan_cell_queue_len(&chan->incoming_queue), chan_cell_queue_len(&chan->outgoing_queue)); /* Describe circuits */ tor_log(severity, LD_GENERAL, " * Channel " U64_FORMAT " has %d active circuits out of" " %d in total", U64_PRINTF_ARG(chan->global_identifier), (chan->cmux != NULL) ? circuitmux_num_active_circuits(chan->cmux) : 0, (chan->cmux != NULL) ? circuitmux_num_circuits(chan->cmux) : 0); /* Describe timestamps */ tor_log(severity, LD_GENERAL, " * Channel " U64_FORMAT " was last used by a " "client at " U64_FORMAT " (" U64_FORMAT " seconds ago)", U64_PRINTF_ARG(chan->global_identifier), U64_PRINTF_ARG(chan->timestamp_client), U64_PRINTF_ARG(now - chan->timestamp_client)); tor_log(severity, LD_GENERAL, " * Channel " U64_FORMAT " was last drained at " U64_FORMAT " (" U64_FORMAT " seconds ago)", U64_PRINTF_ARG(chan->global_identifier), U64_PRINTF_ARG(chan->timestamp_drained), U64_PRINTF_ARG(now - chan->timestamp_drained)); tor_log(severity, LD_GENERAL, " * Channel " U64_FORMAT " last received a cell " "at " U64_FORMAT " (" U64_FORMAT " seconds ago)", U64_PRINTF_ARG(chan->global_identifier), U64_PRINTF_ARG(chan->timestamp_recv), U64_PRINTF_ARG(now - chan->timestamp_recv)); tor_log(severity, LD_GENERAL, " * Channel " U64_FORMAT " last transmitted a cell " "at " U64_FORMAT " (" U64_FORMAT " seconds ago)", U64_PRINTF_ARG(chan->global_identifier), U64_PRINTF_ARG(chan->timestamp_xmit), U64_PRINTF_ARG(now - chan->timestamp_xmit)); /* Describe counters and rates */ tor_log(severity, LD_GENERAL, " * Channel " U64_FORMAT " has received " U64_FORMAT " bytes in " U64_FORMAT " cells and transmitted " U64_FORMAT " bytes in " U64_FORMAT " cells", U64_PRINTF_ARG(chan->global_identifier), U64_PRINTF_ARG(chan->n_bytes_recved), U64_PRINTF_ARG(chan->n_cells_recved), U64_PRINTF_ARG(chan->n_bytes_xmitted), U64_PRINTF_ARG(chan->n_cells_xmitted)); if (now > chan->timestamp_created && chan->timestamp_created > 0) { if (chan->n_bytes_recved > 0) { avg = (double)(chan->n_bytes_recved) / age; tor_log(severity, LD_GENERAL, " * Channel " U64_FORMAT " has averaged %f " "bytes received per second", U64_PRINTF_ARG(chan->global_identifier), avg); } if (chan->n_cells_recved > 0) { avg = (double)(chan->n_cells_recved) / age; if (avg >= 1.0) { tor_log(severity, LD_GENERAL, " * Channel " U64_FORMAT " has averaged %f " "cells received per second", U64_PRINTF_ARG(chan->global_identifier), avg); } else if (avg >= 0.0) { interval = 1.0 / avg; tor_log(severity, LD_GENERAL, " * Channel " U64_FORMAT " has averaged %f " "seconds between received cells", U64_PRINTF_ARG(chan->global_identifier), interval); } } if (chan->n_bytes_xmitted > 0) { avg = (double)(chan->n_bytes_xmitted) / age; tor_log(severity, LD_GENERAL, " * Channel " U64_FORMAT " has averaged %f " "bytes transmitted per second", U64_PRINTF_ARG(chan->global_identifier), avg); } if (chan->n_cells_xmitted > 0) { avg = (double)(chan->n_cells_xmitted) / age; if (avg >= 1.0) { tor_log(severity, LD_GENERAL, " * Channel " U64_FORMAT " has averaged %f " "cells transmitted per second", U64_PRINTF_ARG(chan->global_identifier), avg); } else if (avg >= 0.0) { interval = 1.0 / avg; tor_log(severity, LD_GENERAL, " * Channel " U64_FORMAT " has averaged %f " "seconds between transmitted cells", U64_PRINTF_ARG(chan->global_identifier), interval); } } } /* Dump anything the lower layer has to say */ channel_dump_transport_statistics(chan, severity); } /** * Dump channel listener statistics * * Dump statistics for one channel listener to the log */ void channel_listener_dump_statistics(channel_listener_t *chan_l, int severity) { double avg, interval, age; time_t now = time(NULL); tor_assert(chan_l); age = (double)(now - chan_l->timestamp_created); tor_log(severity, LD_GENERAL, "Channel listener " U64_FORMAT " (at %p) with transport %s is in " "state %s (%d)", U64_PRINTF_ARG(chan_l->global_identifier), chan_l, channel_listener_describe_transport(chan_l), channel_listener_state_to_string(chan_l->state), chan_l->state); tor_log(severity, LD_GENERAL, " * Channel listener " U64_FORMAT " was created at " U64_FORMAT " (" U64_FORMAT " seconds ago) " "and last active at " U64_FORMAT " (" U64_FORMAT " seconds ago)", U64_PRINTF_ARG(chan_l->global_identifier), U64_PRINTF_ARG(chan_l->timestamp_created), U64_PRINTF_ARG(now - chan_l->timestamp_created), U64_PRINTF_ARG(chan_l->timestamp_active), U64_PRINTF_ARG(now - chan_l->timestamp_active)); tor_log(severity, LD_GENERAL, " * Channel listener " U64_FORMAT " last accepted an incoming " "channel at " U64_FORMAT " (" U64_FORMAT " seconds ago) " "and has accepted " U64_FORMAT " channels in total", U64_PRINTF_ARG(chan_l->global_identifier), U64_PRINTF_ARG(chan_l->timestamp_accepted), U64_PRINTF_ARG(now - chan_l->timestamp_accepted), U64_PRINTF_ARG(chan_l->n_accepted)); /* * If it's sensible to do so, get the rate of incoming channels on this * listener */ if (now > chan_l->timestamp_created && chan_l->timestamp_created > 0 && chan_l->n_accepted > 0) { avg = (double)(chan_l->n_accepted) / age; if (avg >= 1.0) { tor_log(severity, LD_GENERAL, " * Channel listener " U64_FORMAT " has averaged %f incoming " "channels per second", U64_PRINTF_ARG(chan_l->global_identifier), avg); } else if (avg >= 0.0) { interval = 1.0 / avg; tor_log(severity, LD_GENERAL, " * Channel listener " U64_FORMAT " has averaged %f seconds " "between incoming channels", U64_PRINTF_ARG(chan_l->global_identifier), interval); } } /* Dump anything the lower layer has to say */ channel_listener_dump_transport_statistics(chan_l, severity); } /** * Invoke transport-specific stats dump for channel * * If there is a lower-layer statistics dump method, invoke it */ void channel_dump_transport_statistics(channel_t *chan, int severity) { tor_assert(chan); if (chan->dumpstats) chan->dumpstats(chan, severity); } /** * Invoke transport-specific stats dump for channel listener * * If there is a lower-layer statistics dump method, invoke it */ void channel_listener_dump_transport_statistics(channel_listener_t *chan_l, int severity) { tor_assert(chan_l); if (chan_l->dumpstats) chan_l->dumpstats(chan_l, severity); } /** * Return text description of the remote endpoint * * This function return a test provided by the lower layer of the remote * endpoint for this channel; it should specify the actual address connected * to/from. * * Subsequent calls to channel_get_{actual,canonical}_remote_{address,descr} * may invalidate the return value from this function. */ const char * channel_get_actual_remote_descr(channel_t *chan) { tor_assert(chan); tor_assert(chan->get_remote_descr); /* Param 1 indicates the actual description */ return chan->get_remote_descr(chan, GRD_FLAG_ORIGINAL); } /** * Return the text address of the remote endpoint. * * Subsequent calls to channel_get_{actual,canonical}_remote_{address,descr} * may invalidate the return value from this function. */ const char * channel_get_actual_remote_address(channel_t *chan) { /* Param 1 indicates the actual description */ return chan->get_remote_descr(chan, GRD_FLAG_ORIGINAL|GRD_FLAG_ADDR_ONLY); } /** * Return text description of the remote endpoint canonical address * * This function return a test provided by the lower layer of the remote * endpoint for this channel; it should use the known canonical address for * this OR's identity digest if possible. * * Subsequent calls to channel_get_{actual,canonical}_remote_{address,descr} * may invalidate the return value from this function. */ const char * channel_get_canonical_remote_descr(channel_t *chan) { tor_assert(chan); tor_assert(chan->get_remote_descr); /* Param 0 indicates the canonicalized description */ return chan->get_remote_descr(chan, 0); } /** * Get remote address if possible. * * Write the remote address out to a tor_addr_t if the underlying transport * supports this operation, and return 1. Return 0 if the underlying transport * doesn't let us do this. */ int channel_get_addr_if_possible(channel_t *chan, tor_addr_t *addr_out) { tor_assert(chan); tor_assert(addr_out); if (chan->get_remote_addr) return chan->get_remote_addr(chan, addr_out); /* Else no support, method not implemented */ else return 0; } /** * Check if there are outgoing queue writes on this channel * * Indicate if either we have queued cells, or if not, whether the underlying * lower-layer transport thinks it has an output queue. */ int channel_has_queued_writes(channel_t *chan) { int has_writes = 0; tor_assert(chan); tor_assert(chan->has_queued_writes); if (! TOR_SIMPLEQ_EMPTY(&chan->outgoing_queue)) { has_writes = 1; } else { /* Check with the lower layer */ has_writes = chan->has_queued_writes(chan); } return has_writes; } /** * Check the is_bad_for_new_circs flag * * This function returns the is_bad_for_new_circs flag of the specified * channel. */ int channel_is_bad_for_new_circs(channel_t *chan) { tor_assert(chan); return chan->is_bad_for_new_circs; } /** * Mark a channel as bad for new circuits * * Set the is_bad_for_new_circs_flag on chan. */ void channel_mark_bad_for_new_circs(channel_t *chan) { tor_assert(chan); chan->is_bad_for_new_circs = 1; } /** * Get the client flag * * This returns the client flag of a channel, which will be set if * command_process_create_cell() in command.c thinks this is a connection * from a client. */ int channel_is_client(channel_t *chan) { tor_assert(chan); return chan->is_client; } /** * Set the client flag * * Mark a channel as being from a client */ void channel_mark_client(channel_t *chan) { tor_assert(chan); chan->is_client = 1; } /** * Get the canonical flag for a channel * * This returns the is_canonical for a channel; this flag is determined by * the lower layer and can't be set in a transport-independent way. */ int channel_is_canonical(channel_t *chan) { tor_assert(chan); tor_assert(chan->is_canonical); return chan->is_canonical(chan, 0); } /** * Test if the canonical flag is reliable * * This function asks if the lower layer thinks it's safe to trust the * result of channel_is_canonical() */ int channel_is_canonical_is_reliable(channel_t *chan) { tor_assert(chan); tor_assert(chan->is_canonical); return chan->is_canonical(chan, 1); } /** * Test incoming flag * * This function gets the incoming flag; this is set when a listener spawns * a channel. If this returns true the channel was remotely initiated. */ int channel_is_incoming(channel_t *chan) { tor_assert(chan); return chan->is_incoming; } /** * Set the incoming flag * * This function is called when a channel arrives on a listening channel * to mark it as incoming. */ void channel_mark_incoming(channel_t *chan) { tor_assert(chan); chan->is_incoming = 1; } /** * Test local flag * * This function gets the local flag; the lower layer should set this when * setting up the channel if is_local_addr() is true for all of the * destinations it will communicate with on behalf of this channel. It's * used to decide whether to declare the network reachable when seeing incoming * traffic on the channel. */ int channel_is_local(channel_t *chan) { tor_assert(chan); return chan->is_local; } /** * Set the local flag * * This internal-only function should be called by the lower layer if the * channel is to a local address. See channel_is_local() above or the * description of the is_local bit in channel.h */ void channel_mark_local(channel_t *chan) { tor_assert(chan); chan->is_local = 1; } /** * Mark a channel as remote * * This internal-only function should be called by the lower layer if the * channel is not to a local address but has previously been marked local. * See channel_is_local() above or the description of the is_local bit in * channel.h */ void channel_mark_remote(channel_t *chan) { tor_assert(chan); chan->is_local = 0; } /** * Test outgoing flag * * This function gets the outgoing flag; this is the inverse of the incoming * bit set when a listener spawns a channel. If this returns true the channel * was locally initiated. */ int channel_is_outgoing(channel_t *chan) { tor_assert(chan); return !(chan->is_incoming); } /** * Mark a channel as outgoing * * This function clears the incoming flag and thus marks a channel as * outgoing. */ void channel_mark_outgoing(channel_t *chan) { tor_assert(chan); chan->is_incoming = 0; } /************************ * Flow control queries * ***********************/ /* * Get the latest estimate for the total queue size of all open channels */ uint64_t channel_get_global_queue_estimate(void) { return estimated_total_queue_size; } /* * Estimate the number of writeable cells * * Ask the lower layer for an estimate of how many cells it can accept, and * then subtract the length of our outgoing_queue, if any, to produce an * estimate of the number of cells this channel can accept for writes. */ int channel_num_cells_writeable(channel_t *chan) { int result; tor_assert(chan); tor_assert(chan->num_cells_writeable); if (chan->state == CHANNEL_STATE_OPEN) { /* Query lower layer */ result = chan->num_cells_writeable(chan); /* Subtract cell queue length, if any */ result -= chan_cell_queue_len(&chan->outgoing_queue); if (result < 0) result = 0; } else { /* No cells are writeable in any other state */ result = 0; } return result; } /********************* * Timestamp updates * ********************/ /** * Update the created timestamp for a channel * * This updates the channel's created timestamp and should only be called * from channel_init(). */ void channel_timestamp_created(channel_t *chan) { time_t now = time(NULL); tor_assert(chan); chan->timestamp_created = now; } /** * Update the created timestamp for a channel listener * * This updates the channel listener's created timestamp and should only be * called from channel_init_listener(). */ void channel_listener_timestamp_created(channel_listener_t *chan_l) { time_t now = time(NULL); tor_assert(chan_l); chan_l->timestamp_created = now; } /** * Update the last active timestamp for a channel * * This function updates the channel's last active timestamp; it should be * called by the lower layer whenever there is activity on the channel which * does not lead to a cell being transmitted or received; the active timestamp * is also updated from channel_timestamp_recv() and channel_timestamp_xmit(), * but it should be updated for things like the v3 handshake and stuff that * produce activity only visible to the lower layer. */ void channel_timestamp_active(channel_t *chan) { time_t now = time(NULL); tor_assert(chan); chan->timestamp_active = now; } /** * Update the last active timestamp for a channel listener */ void channel_listener_timestamp_active(channel_listener_t *chan_l) { time_t now = time(NULL); tor_assert(chan_l); chan_l->timestamp_active = now; } /** * Update the last accepted timestamp. * * This function updates the channel listener's last accepted timestamp; it * should be called whenever a new incoming channel is accepted on a * listener. */ void channel_listener_timestamp_accepted(channel_listener_t *chan_l) { time_t now = time(NULL); tor_assert(chan_l); chan_l->timestamp_active = now; chan_l->timestamp_accepted = now; } /** * Update client timestamp * * This function is called by relay.c to timestamp a channel that appears to * be used as a client. */ void channel_timestamp_client(channel_t *chan) { time_t now = time(NULL); tor_assert(chan); chan->timestamp_client = now; } /** * Update the last drained timestamp * * This is called whenever we transmit a cell which leaves the outgoing cell * queue completely empty. It also updates the xmit time and the active time. */ void channel_timestamp_drained(channel_t *chan) { time_t now = time(NULL); tor_assert(chan); chan->timestamp_active = now; chan->timestamp_drained = now; chan->timestamp_xmit = now; } /** * Update the recv timestamp * * This is called whenever we get an incoming cell from the lower layer. * This also updates the active timestamp. */ void channel_timestamp_recv(channel_t *chan) { time_t now = time(NULL); tor_assert(chan); chan->timestamp_active = now; chan->timestamp_recv = now; } /** * Update the xmit timestamp * This is called whenever we pass an outgoing cell to the lower layer. This * also updates the active timestamp. */ void channel_timestamp_xmit(channel_t *chan) { time_t now = time(NULL); tor_assert(chan); chan->timestamp_active = now; chan->timestamp_xmit = now; } /*************************************************************** * Timestamp queries - see above for definitions of timestamps * **************************************************************/ /** * Query created timestamp for a channel */ time_t channel_when_created(channel_t *chan) { tor_assert(chan); return chan->timestamp_created; } /** * Query created timestamp for a channel listener */ time_t channel_listener_when_created(channel_listener_t *chan_l) { tor_assert(chan_l); return chan_l->timestamp_created; } /** * Query last active timestamp for a channel */ time_t channel_when_last_active(channel_t *chan) { tor_assert(chan); return chan->timestamp_active; } /** * Query last active timestamp for a channel listener */ time_t channel_listener_when_last_active(channel_listener_t *chan_l) { tor_assert(chan_l); return chan_l->timestamp_active; } /** * Query last accepted timestamp for a channel listener */ time_t channel_listener_when_last_accepted(channel_listener_t *chan_l) { tor_assert(chan_l); return chan_l->timestamp_accepted; } /** * Query client timestamp */ time_t channel_when_last_client(channel_t *chan) { tor_assert(chan); return chan->timestamp_client; } /** * Query drained timestamp */ time_t channel_when_last_drained(channel_t *chan) { tor_assert(chan); return chan->timestamp_drained; } /** * Query recv timestamp */ time_t channel_when_last_recv(channel_t *chan) { tor_assert(chan); return chan->timestamp_recv; } /** * Query xmit timestamp */ time_t channel_when_last_xmit(channel_t *chan) { tor_assert(chan); return chan->timestamp_xmit; } /** * Query accepted counter */ uint64_t channel_listener_count_accepted(channel_listener_t *chan_l) { tor_assert(chan_l); return chan_l->n_accepted; } /** * Query received cell counter */ uint64_t channel_count_recved(channel_t *chan) { tor_assert(chan); return chan->n_cells_recved; } /** * Query transmitted cell counter */ uint64_t channel_count_xmitted(channel_t *chan) { tor_assert(chan); return chan->n_cells_xmitted; } /** * Check if a channel matches an extend_info_t * * This function calls the lower layer and asks if this channel matches a * given extend_info_t. */ int channel_matches_extend_info(channel_t *chan, extend_info_t *extend_info) { tor_assert(chan); tor_assert(chan->matches_extend_info); tor_assert(extend_info); return chan->matches_extend_info(chan, extend_info); } /** * Check if a channel matches a given target address; return true iff we do. * * This function calls into the lower layer and asks if this channel thinks * it matches a given target address for circuit extension purposes. */ int channel_matches_target_addr_for_extend(channel_t *chan, const tor_addr_t *target) { tor_assert(chan); tor_assert(chan->matches_target); tor_assert(target); return chan->matches_target(chan, target); } /** * Return the total number of circuits used by a channel * * @param chan Channel to query * @return Number of circuits using this as n_chan or p_chan */ unsigned int channel_num_circuits(channel_t *chan) { tor_assert(chan); return chan->num_n_circuits + chan->num_p_circuits; } /** * Set up circuit ID generation * * This is called when setting up a channel and replaces the old * connection_or_set_circid_type() */ MOCK_IMPL(void, channel_set_circid_type,(channel_t *chan, crypto_pk_t *identity_rcvd, int consider_identity)) { int started_here; crypto_pk_t *our_identity; tor_assert(chan); started_here = channel_is_outgoing(chan); if (! consider_identity) { if (started_here) chan->circ_id_type = CIRC_ID_TYPE_HIGHER; else chan->circ_id_type = CIRC_ID_TYPE_LOWER; return; } our_identity = started_here ? get_tlsclient_identity_key() : get_server_identity_key(); if (identity_rcvd) { if (crypto_pk_cmp_keys(our_identity, identity_rcvd) < 0) { chan->circ_id_type = CIRC_ID_TYPE_LOWER; } else { chan->circ_id_type = CIRC_ID_TYPE_HIGHER; } } else { chan->circ_id_type = CIRC_ID_TYPE_NEITHER; } } /** * Update the estimated number of bytes queued to transmit for this channel, * and notify the scheduler. The estimate includes both the channel queue and * the queue size reported by the lower layer, and an overhead estimate * optionally provided by the lower layer. */ void channel_update_xmit_queue_size(channel_t *chan) { uint64_t queued, adj; double overhead; tor_assert(chan); tor_assert(chan->num_bytes_queued); /* * First, get the number of bytes we have queued without factoring in * lower-layer overhead. */ queued = chan->num_bytes_queued(chan) + chan->bytes_in_queue; /* Next, adjust by the overhead factor, if any is available */ if (chan->get_overhead_estimate) { overhead = chan->get_overhead_estimate(chan); if (overhead >= 1.0) { queued = (uint64_t)(queued * overhead); } else { /* Ignore silly overhead factors */ log_notice(LD_CHANNEL, "Ignoring silly overhead factor %f", overhead); } } /* Now, compare to the previous estimate */ if (queued > chan->bytes_queued_for_xmit) { adj = queued - chan->bytes_queued_for_xmit; log_debug(LD_CHANNEL, "Increasing queue size for channel " U64_FORMAT " by " U64_FORMAT " from " U64_FORMAT " to " U64_FORMAT, U64_PRINTF_ARG(chan->global_identifier), U64_PRINTF_ARG(adj), U64_PRINTF_ARG(chan->bytes_queued_for_xmit), U64_PRINTF_ARG(queued)); /* Update the channel's estimate */ chan->bytes_queued_for_xmit = queued; /* Update the global queue size estimate if appropriate */ if (chan->state == CHANNEL_STATE_OPEN || chan->state == CHANNEL_STATE_MAINT) { estimated_total_queue_size += adj; log_debug(LD_CHANNEL, "Increasing global queue size by " U64_FORMAT " for channel " U64_FORMAT ", new size is " U64_FORMAT, U64_PRINTF_ARG(adj), U64_PRINTF_ARG(chan->global_identifier), U64_PRINTF_ARG(estimated_total_queue_size)); /* Tell the scheduler we're increasing the queue size */ scheduler_adjust_queue_size(chan, 1, adj); } } else if (queued < chan->bytes_queued_for_xmit) { adj = chan->bytes_queued_for_xmit - queued; log_debug(LD_CHANNEL, "Decreasing queue size for channel " U64_FORMAT " by " U64_FORMAT " from " U64_FORMAT " to " U64_FORMAT, U64_PRINTF_ARG(chan->global_identifier), U64_PRINTF_ARG(adj), U64_PRINTF_ARG(chan->bytes_queued_for_xmit), U64_PRINTF_ARG(queued)); /* Update the channel's estimate */ chan->bytes_queued_for_xmit = queued; /* Update the global queue size estimate if appropriate */ if (chan->state == CHANNEL_STATE_OPEN || chan->state == CHANNEL_STATE_MAINT) { estimated_total_queue_size -= adj; log_debug(LD_CHANNEL, "Decreasing global queue size by " U64_FORMAT " for channel " U64_FORMAT ", new size is " U64_FORMAT, U64_PRINTF_ARG(adj), U64_PRINTF_ARG(chan->global_identifier), U64_PRINTF_ARG(estimated_total_queue_size)); /* Tell the scheduler we're decreasing the queue size */ scheduler_adjust_queue_size(chan, -1, adj); } } } tor-0.2.9.10/src/or/replaycache.h0000644000175000017500000000304713002150440013317 00000000000000/* Copyright (c) 2012-2016, The Tor Project, Inc. */ /* See LICENSE for licensing information */ /** * \file replaycache.h * \brief Header file for replaycache.c. **/ #ifndef TOR_REPLAYCACHE_H #define TOR_REPLAYCACHE_H typedef struct replaycache_s replaycache_t; #ifdef REPLAYCACHE_PRIVATE struct replaycache_s { /* Scrub interval */ time_t scrub_interval; /* Last scrubbed */ time_t scrubbed; /* * Horizon * (don't return true on digests in the cache but older than this) */ time_t horizon; /* * Digest map: keys are digests, values are times the digest was last seen */ digest256map_t *digests_seen; }; #endif /* REPLAYCACHE_PRIVATE */ /* replaycache_t free/new */ void replaycache_free(replaycache_t *r); replaycache_t * replaycache_new(time_t horizon, time_t interval); #ifdef REPLAYCACHE_PRIVATE /* * replaycache_t internal functions: * * These take the time to treat as the present as an argument for easy unit * testing. For everything else, use the wrappers below instead. */ STATIC int replaycache_add_and_test_internal( time_t present, replaycache_t *r, const void *data, size_t len, time_t *elapsed); STATIC void replaycache_scrub_if_needed_internal( time_t present, replaycache_t *r); #endif /* REPLAYCACHE_PRIVATE */ /* * replaycache_t methods */ int replaycache_add_and_test(replaycache_t *r, const void *data, size_t len); int replaycache_add_test_and_elapsed( replaycache_t *r, const void *data, size_t len, time_t *elapsed); void replaycache_scrub_if_needed(replaycache_t *r); #endif tor-0.2.9.10/src/or/networkstatus.h0000644000175000017500000001525113051624457014016 00000000000000/* Copyright (c) 2001 Matej Pfajfar. * Copyright (c) 2001-2004, Roger Dingledine. * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson. * Copyright (c) 2007-2016, The Tor Project, Inc. */ /* See LICENSE for licensing information */ /** * \file networkstatus.h * \brief Header file for networkstatus.c. **/ #ifndef TOR_NETWORKSTATUS_H #define TOR_NETWORKSTATUS_H #include "testsupport.h" void networkstatus_reset_warnings(void); void networkstatus_reset_download_failures(void); int router_reload_consensus_networkstatus(void); void routerstatus_free(routerstatus_t *rs); void networkstatus_vote_free(networkstatus_t *ns); networkstatus_voter_info_t *networkstatus_get_voter_by_id( networkstatus_t *vote, const char *identity); int networkstatus_check_consensus_signature(networkstatus_t *consensus, int warn); int networkstatus_check_document_signature(const networkstatus_t *consensus, document_signature_t *sig, const authority_cert_t *cert); int compare_digest_to_routerstatus_entry(const void *_key, const void **_member); int compare_digest_to_vote_routerstatus_entry(const void *_key, const void **_member); const routerstatus_t *networkstatus_vote_find_entry(networkstatus_t *ns, const char *digest); routerstatus_t *networkstatus_vote_find_mutable_entry(networkstatus_t *ns, const char *digest); int networkstatus_vote_find_entry_idx(networkstatus_t *ns, const char *digest, int *found_out); MOCK_DECL(download_status_t *, networkstatus_get_dl_status_by_flavor, (consensus_flavor_t flavor)); MOCK_DECL(download_status_t *, networkstatus_get_dl_status_by_flavor_bootstrap, (consensus_flavor_t flavor)); MOCK_DECL(download_status_t *, networkstatus_get_dl_status_by_flavor_running, (consensus_flavor_t flavor)); MOCK_DECL(smartlist_t *, router_get_descriptor_digests, (void)); MOCK_DECL(download_status_t *,router_get_dl_status_by_descriptor_digest, (const char *d)); const routerstatus_t *router_get_consensus_status_by_id(const char *digest); routerstatus_t *router_get_mutable_consensus_status_by_id( const char *digest); const routerstatus_t *router_get_consensus_status_by_descriptor_digest( networkstatus_t *consensus, const char *digest); MOCK_DECL(routerstatus_t *, router_get_mutable_consensus_status_by_descriptor_digest, (networkstatus_t *consensus, const char *digest)); const routerstatus_t *router_get_consensus_status_by_nickname( const char *nickname, int warn_if_unnamed); const char *networkstatus_get_router_digest_by_nickname(const char *nickname); int networkstatus_nickname_is_unnamed(const char *nickname); void networkstatus_consensus_download_failed(int status_code, const char *flavname); void update_consensus_networkstatus_fetch_time(time_t now); int should_delay_dir_fetches(const or_options_t *options,const char **msg_out); void update_networkstatus_downloads(time_t now); void update_certificate_downloads(time_t now); int consensus_is_waiting_for_certs(void); int client_would_use_router(const routerstatus_t *rs, time_t now, const or_options_t *options); MOCK_DECL(networkstatus_t *,networkstatus_get_latest_consensus,(void)); MOCK_DECL(networkstatus_t *,networkstatus_get_latest_consensus_by_flavor, (consensus_flavor_t f)); MOCK_DECL(networkstatus_t *, networkstatus_get_live_consensus,(time_t now)); networkstatus_t *networkstatus_get_reasonably_live_consensus(time_t now, int flavor); MOCK_DECL(int, networkstatus_consensus_is_bootstrapping,(time_t now)); int networkstatus_consensus_can_use_multiple_directories( const or_options_t *options); MOCK_DECL(int, networkstatus_consensus_can_use_extra_fallbacks,( const or_options_t *options)); int networkstatus_consensus_is_already_downloading(const char *resource); #define NSSET_FROM_CACHE 1 #define NSSET_WAS_WAITING_FOR_CERTS 2 #define NSSET_DONT_DOWNLOAD_CERTS 4 #define NSSET_ACCEPT_OBSOLETE 8 #define NSSET_REQUIRE_FLAVOR 16 int networkstatus_set_current_consensus(const char *consensus, const char *flavor, unsigned flags, const char *source_dir); void networkstatus_note_certs_arrived(const char *source_dir); void routers_update_all_from_networkstatus(time_t now, int dir_version); void routers_update_status_from_consensus_networkstatus(smartlist_t *routers, int reset_failures); void signed_descs_update_status_from_consensus_networkstatus( smartlist_t *descs); char *networkstatus_getinfo_helper_single(const routerstatus_t *rs); char *networkstatus_getinfo_by_purpose(const char *purpose_string, time_t now); void networkstatus_dump_bridge_status_to_file(time_t now); int32_t networkstatus_get_param(const networkstatus_t *ns, const char *param_name, int32_t default_val, int32_t min_val, int32_t max_val); int getinfo_helper_networkstatus(control_connection_t *conn, const char *question, char **answer, const char **errmsg); int32_t networkstatus_get_bw_weight(networkstatus_t *ns, const char *weight, int32_t default_val); const char *networkstatus_get_flavor_name(consensus_flavor_t flav); int networkstatus_parse_flavor_name(const char *flavname); void document_signature_free(document_signature_t *sig); document_signature_t *document_signature_dup(const document_signature_t *sig); void networkstatus_free_all(void); int networkstatus_get_weight_scale_param(networkstatus_t *ns); #ifdef NETWORKSTATUS_PRIVATE STATIC void vote_routerstatus_free(vote_routerstatus_t *rs); #ifdef TOR_UNIT_TESTS STATIC int networkstatus_set_current_consensus_from_ns(networkstatus_t *c, const char *flavor); #endif // TOR_UNIT_TESTS #endif #endif tor-0.2.9.10/src/or/networkstatus.c0000644000175000017500000026166213051624457014022 00000000000000/* Copyright (c) 2001 Matej Pfajfar. * Copyright (c) 2001-2004, Roger Dingledine. * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson. * Copyright (c) 2007-2016, The Tor Project, Inc. */ /* See LICENSE for licensing information */ /** * \file networkstatus.c * \brief Functions and structures for handling network status documents as a * client or cache. */ #define NETWORKSTATUS_PRIVATE #include "or.h" #include "channel.h" #include "circuitmux.h" #include "circuitmux_ewma.h" #include "circuitstats.h" #include "config.h" #include "connection.h" #include "connection_or.h" #include "control.h" #include "directory.h" #include "dirserv.h" #include "dirvote.h" #include "entrynodes.h" #include "main.h" #include "microdesc.h" #include "networkstatus.h" #include "nodelist.h" #include "protover.h" #include "relay.h" #include "router.h" #include "routerlist.h" #include "routerparse.h" #include "shared_random.h" #include "transports.h" #include "torcert.h" /** Map from lowercase nickname to identity digest of named server, if any. */ static strmap_t *named_server_map = NULL; /** Map from lowercase nickname to (void*)1 for all names that are listed * as unnamed for some server in the consensus. */ static strmap_t *unnamed_server_map = NULL; /** Most recently received and validated v3 "ns"-flavored consensus network * status. */ static networkstatus_t *current_ns_consensus = NULL; /** Most recently received and validated v3 "microdec"-flavored consensus * network status. */ static networkstatus_t *current_md_consensus = NULL; /** A v3 consensus networkstatus that we've received, but which we don't * have enough certificates to be happy about. */ typedef struct consensus_waiting_for_certs_t { /** The consensus itself. */ networkstatus_t *consensus; /** The encoded version of the consensus, nul-terminated. */ char *body; /** When did we set the current value of consensus_waiting_for_certs? If * this is too recent, we shouldn't try to fetch a new consensus for a * little while, to give ourselves time to get certificates for this one. */ time_t set_at; /** Set to 1 if we've been holding on to it for so long we should maybe * treat it as being bad. */ int dl_failed; } consensus_waiting_for_certs_t; /** An array, for each flavor of consensus we might want, of consensuses that * we have downloaded, but which we cannot verify due to having insufficient * authority certificates. */ static consensus_waiting_for_certs_t consensus_waiting_for_certs[N_CONSENSUS_FLAVORS]; /** A time before which we shouldn't try to replace the current consensus: * this will be at some point after the next consensus becomes valid, but * before the current consensus becomes invalid. */ static time_t time_to_download_next_consensus[N_CONSENSUS_FLAVORS]; /** Download status for the current consensus networkstatus. */ static download_status_t consensus_dl_status[N_CONSENSUS_FLAVORS] = { { 0, 0, 0, DL_SCHED_CONSENSUS, DL_WANT_ANY_DIRSERVER, DL_SCHED_INCREMENT_FAILURE, DL_SCHED_RANDOM_EXPONENTIAL, 0, 0 }, { 0, 0, 0, DL_SCHED_CONSENSUS, DL_WANT_ANY_DIRSERVER, DL_SCHED_INCREMENT_FAILURE, DL_SCHED_RANDOM_EXPONENTIAL, 0, 0 }, }; #define N_CONSENSUS_BOOTSTRAP_SCHEDULES 2 #define CONSENSUS_BOOTSTRAP_SOURCE_AUTHORITY 0 #define CONSENSUS_BOOTSTRAP_SOURCE_ANY_DIRSERVER 1 /* Using DL_SCHED_INCREMENT_ATTEMPT on these schedules means that * download_status_increment_failure won't increment these entries. * However, any bootstrap connection failures that occur after we have * a valid consensus will count against the failure counts on the non-bootstrap * schedules. There should only be one of these, as all the others will have * been cancelled. (This doesn't seem to be a significant issue.) */ static download_status_t consensus_bootstrap_dl_status[N_CONSENSUS_BOOTSTRAP_SCHEDULES] = { { 0, 0, 0, DL_SCHED_CONSENSUS, DL_WANT_AUTHORITY, DL_SCHED_INCREMENT_ATTEMPT, DL_SCHED_RANDOM_EXPONENTIAL, 0, 0 }, /* During bootstrap, DL_WANT_ANY_DIRSERVER means "use fallbacks". */ { 0, 0, 0, DL_SCHED_CONSENSUS, DL_WANT_ANY_DIRSERVER, DL_SCHED_INCREMENT_ATTEMPT, DL_SCHED_RANDOM_EXPONENTIAL, 0, 0 }, }; /** True iff we have logged a warning about this OR's version being older than * listed by the authorities. */ static int have_warned_about_old_version = 0; /** True iff we have logged a warning about this OR's version being newer than * listed by the authorities. */ static int have_warned_about_new_version = 0; static void routerstatus_list_update_named_server_map(void); static void update_consensus_bootstrap_multiple_downloads( time_t now, const or_options_t *options); static int networkstatus_check_required_protocols(const networkstatus_t *ns, int client_mode, char **warning_out); /** Forget that we've warned about anything networkstatus-related, so we will * give fresh warnings if the same behavior happens again. */ void networkstatus_reset_warnings(void) { SMARTLIST_FOREACH(nodelist_get_list(), node_t *, node, node->name_lookup_warned = 0); have_warned_about_old_version = 0; have_warned_about_new_version = 0; } /** Reset the descriptor download failure count on all networkstatus docs, so * that we can retry any long-failed documents immediately. */ void networkstatus_reset_download_failures(void) { int i; log_debug(LD_GENERAL, "In networkstatus_reset_download_failures()"); for (i=0; i < N_CONSENSUS_FLAVORS; ++i) download_status_reset(&consensus_dl_status[i]); for (i=0; i < N_CONSENSUS_BOOTSTRAP_SCHEDULES; ++i) download_status_reset(&consensus_bootstrap_dl_status[i]); } /** Read every cached v3 consensus networkstatus from the disk. */ int router_reload_consensus_networkstatus(void) { char *filename; char *s; const unsigned int flags = NSSET_FROM_CACHE | NSSET_DONT_DOWNLOAD_CERTS; int flav; /* FFFF Suppress warnings if cached consensus is bad? */ for (flav = 0; flav < N_CONSENSUS_FLAVORS; ++flav) { char buf[128]; const char *flavor = networkstatus_get_flavor_name(flav); if (flav == FLAV_NS) { filename = get_datadir_fname("cached-consensus"); } else { tor_snprintf(buf, sizeof(buf), "cached-%s-consensus", flavor); filename = get_datadir_fname(buf); } s = read_file_to_str(filename, RFTS_IGNORE_MISSING, NULL); if (s) { if (networkstatus_set_current_consensus(s, flavor, flags, NULL) < -1) { log_warn(LD_FS, "Couldn't load consensus %s networkstatus from \"%s\"", flavor, filename); } tor_free(s); } tor_free(filename); if (flav == FLAV_NS) { filename = get_datadir_fname("unverified-consensus"); } else { tor_snprintf(buf, sizeof(buf), "unverified-%s-consensus", flavor); filename = get_datadir_fname(buf); } s = read_file_to_str(filename, RFTS_IGNORE_MISSING, NULL); if (s) { if (networkstatus_set_current_consensus(s, flavor, flags|NSSET_WAS_WAITING_FOR_CERTS, NULL)) { log_info(LD_FS, "Couldn't load consensus %s networkstatus from \"%s\"", flavor, filename); } tor_free(s); } tor_free(filename); } if (!networkstatus_get_latest_consensus()) { if (!named_server_map) named_server_map = strmap_new(); if (!unnamed_server_map) unnamed_server_map = strmap_new(); } update_certificate_downloads(time(NULL)); routers_update_all_from_networkstatus(time(NULL), 3); update_microdescs_from_networkstatus(time(NULL)); return 0; } /** Free all storage held by the vote_routerstatus object rs. */ STATIC void vote_routerstatus_free(vote_routerstatus_t *rs) { vote_microdesc_hash_t *h, *next; if (!rs) return; tor_free(rs->version); tor_free(rs->protocols); tor_free(rs->status.exitsummary); for (h = rs->microdesc; h; h = next) { tor_free(h->microdesc_hash_line); next = h->next; tor_free(h); } tor_free(rs); } /** Free all storage held by the routerstatus object rs. */ void routerstatus_free(routerstatus_t *rs) { if (!rs) return; tor_free(rs->exitsummary); tor_free(rs); } /** Free all storage held in sig */ void document_signature_free(document_signature_t *sig) { tor_free(sig->signature); tor_free(sig); } /** Return a newly allocated copy of sig */ document_signature_t * document_signature_dup(const document_signature_t *sig) { document_signature_t *r = tor_memdup(sig, sizeof(document_signature_t)); if (r->signature) r->signature = tor_memdup(sig->signature, sig->signature_len); return r; } /** Free all storage held in ns. */ void networkstatus_vote_free(networkstatus_t *ns) { if (!ns) return; tor_free(ns->client_versions); tor_free(ns->server_versions); tor_free(ns->recommended_client_protocols); tor_free(ns->recommended_relay_protocols); tor_free(ns->required_client_protocols); tor_free(ns->required_relay_protocols); if (ns->known_flags) { SMARTLIST_FOREACH(ns->known_flags, char *, c, tor_free(c)); smartlist_free(ns->known_flags); } if (ns->weight_params) { SMARTLIST_FOREACH(ns->weight_params, char *, c, tor_free(c)); smartlist_free(ns->weight_params); } if (ns->net_params) { SMARTLIST_FOREACH(ns->net_params, char *, c, tor_free(c)); smartlist_free(ns->net_params); } if (ns->supported_methods) { SMARTLIST_FOREACH(ns->supported_methods, char *, c, tor_free(c)); smartlist_free(ns->supported_methods); } if (ns->package_lines) { SMARTLIST_FOREACH(ns->package_lines, char *, c, tor_free(c)); smartlist_free(ns->package_lines); } if (ns->voters) { SMARTLIST_FOREACH_BEGIN(ns->voters, networkstatus_voter_info_t *, voter) { tor_free(voter->nickname); tor_free(voter->address); tor_free(voter->contact); if (voter->sigs) { SMARTLIST_FOREACH(voter->sigs, document_signature_t *, sig, document_signature_free(sig)); smartlist_free(voter->sigs); } tor_free(voter); } SMARTLIST_FOREACH_END(voter); smartlist_free(ns->voters); } authority_cert_free(ns->cert); if (ns->routerstatus_list) { if (ns->type == NS_TYPE_VOTE || ns->type == NS_TYPE_OPINION) { SMARTLIST_FOREACH(ns->routerstatus_list, vote_routerstatus_t *, rs, vote_routerstatus_free(rs)); } else { SMARTLIST_FOREACH(ns->routerstatus_list, routerstatus_t *, rs, routerstatus_free(rs)); } smartlist_free(ns->routerstatus_list); } digestmap_free(ns->desc_digest_map, NULL); if (ns->sr_info.commits) { SMARTLIST_FOREACH(ns->sr_info.commits, sr_commit_t *, c, sr_commit_free(c)); smartlist_free(ns->sr_info.commits); } tor_free(ns->sr_info.previous_srv); tor_free(ns->sr_info.current_srv); memwipe(ns, 11, sizeof(*ns)); tor_free(ns); } /** Return the voter info from vote for the voter whose identity digest * is identity, or NULL if no such voter is associated with * vote. */ networkstatus_voter_info_t * networkstatus_get_voter_by_id(networkstatus_t *vote, const char *identity) { if (!vote || !vote->voters) return NULL; SMARTLIST_FOREACH(vote->voters, networkstatus_voter_info_t *, voter, if (fast_memeq(voter->identity_digest, identity, DIGEST_LEN)) return voter); return NULL; } /** Check whether the signature sig is correctly signed with the * signing key in cert. Return -1 if cert doesn't match the * signing key; otherwise set the good_signature or bad_signature flag on * voter, and return 0. */ int networkstatus_check_document_signature(const networkstatus_t *consensus, document_signature_t *sig, const authority_cert_t *cert) { char key_digest[DIGEST_LEN]; const int dlen = sig->alg == DIGEST_SHA1 ? DIGEST_LEN : DIGEST256_LEN; char *signed_digest; size_t signed_digest_len; if (crypto_pk_get_digest(cert->signing_key, key_digest)<0) return -1; if (tor_memneq(sig->signing_key_digest, key_digest, DIGEST_LEN) || tor_memneq(sig->identity_digest, cert->cache_info.identity_digest, DIGEST_LEN)) return -1; if (authority_cert_is_blacklisted(cert)) { /* We implement blacklisting for authority signing keys by treating * all their signatures as always bad. That way we don't get into * crazy loops of dropping and re-fetching signatures. */ log_warn(LD_DIR, "Ignoring a consensus signature made with deprecated" " signing key %s", hex_str(cert->signing_key_digest, DIGEST_LEN)); sig->bad_signature = 1; return 0; } signed_digest_len = crypto_pk_keysize(cert->signing_key); signed_digest = tor_malloc(signed_digest_len); if (crypto_pk_public_checksig(cert->signing_key, signed_digest, signed_digest_len, sig->signature, sig->signature_len) < dlen || tor_memneq(signed_digest, consensus->digests.d[sig->alg], dlen)) { log_warn(LD_DIR, "Got a bad signature on a networkstatus vote"); sig->bad_signature = 1; } else { sig->good_signature = 1; } tor_free(signed_digest); return 0; } /** Given a v3 networkstatus consensus in consensus, check every * as-yet-unchecked signature on consensus. Return 1 if there is a * signature from every recognized authority on it, 0 if there are * enough good signatures from recognized authorities on it, -1 if we might * get enough good signatures by fetching missing certificates, and -2 * otherwise. Log messages at INFO or WARN: if warn is over 1, warn * about every problem; if warn is at least 1, warn only if we can't get * enough signatures; if warn is negative, log nothing at all. */ int networkstatus_check_consensus_signature(networkstatus_t *consensus, int warn) { int n_good = 0; int n_missing_key = 0, n_dl_failed_key = 0; int n_bad = 0; int n_unknown = 0; int n_no_signature = 0; int n_v3_authorities = get_n_authorities(V3_DIRINFO); int n_required = n_v3_authorities/2 + 1; smartlist_t *list_good = smartlist_new(); smartlist_t *list_no_signature = smartlist_new(); smartlist_t *need_certs_from = smartlist_new(); smartlist_t *unrecognized = smartlist_new(); smartlist_t *missing_authorities = smartlist_new(); int severity; time_t now = time(NULL); tor_assert(consensus->type == NS_TYPE_CONSENSUS); SMARTLIST_FOREACH_BEGIN(consensus->voters, networkstatus_voter_info_t *, voter) { int good_here = 0; int bad_here = 0; int unknown_here = 0; int missing_key_here = 0, dl_failed_key_here = 0; SMARTLIST_FOREACH_BEGIN(voter->sigs, document_signature_t *, sig) { if (!sig->good_signature && !sig->bad_signature && sig->signature) { /* we can try to check the signature. */ int is_v3_auth = trusteddirserver_get_by_v3_auth_digest( sig->identity_digest) != NULL; authority_cert_t *cert = authority_cert_get_by_digests(sig->identity_digest, sig->signing_key_digest); tor_assert(tor_memeq(sig->identity_digest, voter->identity_digest, DIGEST_LEN)); if (!is_v3_auth) { smartlist_add(unrecognized, voter); ++unknown_here; continue; } else if (!cert || cert->expires < now) { smartlist_add(need_certs_from, voter); ++missing_key_here; if (authority_cert_dl_looks_uncertain(sig->identity_digest)) ++dl_failed_key_here; continue; } if (networkstatus_check_document_signature(consensus, sig, cert) < 0) { smartlist_add(need_certs_from, voter); ++missing_key_here; if (authority_cert_dl_looks_uncertain(sig->identity_digest)) ++dl_failed_key_here; continue; } } if (sig->good_signature) ++good_here; else if (sig->bad_signature) ++bad_here; } SMARTLIST_FOREACH_END(sig); if (good_here) { ++n_good; smartlist_add(list_good, voter->nickname); } else if (bad_here) { ++n_bad; } else if (missing_key_here) { ++n_missing_key; if (dl_failed_key_here) ++n_dl_failed_key; } else if (unknown_here) { ++n_unknown; } else { ++n_no_signature; smartlist_add(list_no_signature, voter->nickname); } } SMARTLIST_FOREACH_END(voter); /* Now see whether we're missing any voters entirely. */ SMARTLIST_FOREACH(router_get_trusted_dir_servers(), dir_server_t *, ds, { if ((ds->type & V3_DIRINFO) && !networkstatus_get_voter_by_id(consensus, ds->v3_identity_digest)) smartlist_add(missing_authorities, ds); }); if (warn > 1 || (warn >= 0 && (n_good + n_missing_key - n_dl_failed_key < n_required))) { severity = LOG_WARN; } else { severity = LOG_INFO; } if (warn >= 0) { SMARTLIST_FOREACH(unrecognized, networkstatus_voter_info_t *, voter, { tor_log(severity, LD_DIR, "Consensus includes unrecognized authority " "'%s' at %s:%d (contact %s; identity %s)", voter->nickname, voter->address, (int)voter->dir_port, voter->contact?voter->contact:"n/a", hex_str(voter->identity_digest, DIGEST_LEN)); }); SMARTLIST_FOREACH(need_certs_from, networkstatus_voter_info_t *, voter, { tor_log(severity, LD_DIR, "Looks like we need to download a new " "certificate from authority '%s' at %s:%d (contact %s; " "identity %s)", voter->nickname, voter->address, (int)voter->dir_port, voter->contact?voter->contact:"n/a", hex_str(voter->identity_digest, DIGEST_LEN)); }); SMARTLIST_FOREACH(missing_authorities, dir_server_t *, ds, { tor_log(severity, LD_DIR, "Consensus does not include configured " "authority '%s' at %s:%d (identity %s)", ds->nickname, ds->address, (int)ds->dir_port, hex_str(ds->v3_identity_digest, DIGEST_LEN)); }); { char *joined; smartlist_t *sl = smartlist_new(); char *tmp = smartlist_join_strings(list_good, " ", 0, NULL); smartlist_add_asprintf(sl, "A consensus needs %d good signatures from recognized " "authorities for us to accept it. This one has %d (%s).", n_required, n_good, tmp); tor_free(tmp); if (n_no_signature) { tmp = smartlist_join_strings(list_no_signature, " ", 0, NULL); smartlist_add_asprintf(sl, "%d (%s) of the authorities we know didn't sign it.", n_no_signature, tmp); tor_free(tmp); } if (n_unknown) { smartlist_add_asprintf(sl, "It has %d signatures from authorities we don't " "recognize.", n_unknown); } if (n_bad) { smartlist_add_asprintf(sl, "%d of the signatures on it didn't verify " "correctly.", n_bad); } if (n_missing_key) { smartlist_add_asprintf(sl, "We were unable to check %d of the signatures, " "because we were missing the keys.", n_missing_key); } joined = smartlist_join_strings(sl, " ", 0, NULL); tor_log(severity, LD_DIR, "%s", joined); tor_free(joined); SMARTLIST_FOREACH(sl, char *, c, tor_free(c)); smartlist_free(sl); } } smartlist_free(list_good); smartlist_free(list_no_signature); smartlist_free(unrecognized); smartlist_free(need_certs_from); smartlist_free(missing_authorities); if (n_good == n_v3_authorities) return 1; else if (n_good >= n_required) return 0; else if (n_good + n_missing_key >= n_required) return -1; else return -2; } /** How far in the future do we allow a network-status to get before removing * it? (seconds) */ #define NETWORKSTATUS_ALLOW_SKEW (24*60*60) /** Helper for bsearching a list of routerstatus_t pointers: compare a * digest in the key to the identity digest of a routerstatus_t. */ int compare_digest_to_routerstatus_entry(const void *_key, const void **_member) { const char *key = _key; const routerstatus_t *rs = *_member; return tor_memcmp(key, rs->identity_digest, DIGEST_LEN); } /** Helper for bsearching a list of routerstatus_t pointers: compare a * digest in the key to the identity digest of a routerstatus_t. */ int compare_digest_to_vote_routerstatus_entry(const void *_key, const void **_member) { const char *key = _key; const vote_routerstatus_t *vrs = *_member; return tor_memcmp(key, vrs->status.identity_digest, DIGEST_LEN); } /** As networkstatus_find_entry, but do not return a const pointer */ routerstatus_t * networkstatus_vote_find_mutable_entry(networkstatus_t *ns, const char *digest) { return smartlist_bsearch(ns->routerstatus_list, digest, compare_digest_to_routerstatus_entry); } /** Return the entry in ns for the identity digest digest, or * NULL if none was found. */ const routerstatus_t * networkstatus_vote_find_entry(networkstatus_t *ns, const char *digest) { return networkstatus_vote_find_mutable_entry(ns, digest); } /*XXXX MOVE make this static once functions are moved into this file. */ /** Search the routerstatuses in ns for one whose identity digest is * digest. Return value and set *found_out as for * smartlist_bsearch_idx(). */ int networkstatus_vote_find_entry_idx(networkstatus_t *ns, const char *digest, int *found_out) { return smartlist_bsearch_idx(ns->routerstatus_list, digest, compare_digest_to_routerstatus_entry, found_out); } /** As router_get_consensus_status_by_descriptor_digest, but does not return * a const pointer. */ MOCK_IMPL(routerstatus_t *, router_get_mutable_consensus_status_by_descriptor_digest,( networkstatus_t *consensus, const char *digest)) { if (!consensus) consensus = networkstatus_get_latest_consensus(); if (!consensus) return NULL; if (!consensus->desc_digest_map) { digestmap_t *m = consensus->desc_digest_map = digestmap_new(); SMARTLIST_FOREACH(consensus->routerstatus_list, routerstatus_t *, rs, { digestmap_set(m, rs->descriptor_digest, rs); }); } return digestmap_get(consensus->desc_digest_map, digest); } /** Return the consensus view of the status of the router whose current * descriptor digest in consensus is digest, or NULL if * no such router is known. */ const routerstatus_t * router_get_consensus_status_by_descriptor_digest(networkstatus_t *consensus, const char *digest) { return router_get_mutable_consensus_status_by_descriptor_digest( consensus, digest); } /** Return a smartlist of all router descriptor digests in a consensus */ static smartlist_t * router_get_descriptor_digests_in_consensus(networkstatus_t *consensus) { smartlist_t *result = smartlist_new(); digestmap_iter_t *i; const char *digest; void *rs; char *digest_tmp; for (i = digestmap_iter_init(consensus->desc_digest_map); !(digestmap_iter_done(i)); i = digestmap_iter_next(consensus->desc_digest_map, i)) { digestmap_iter_get(i, &digest, &rs); digest_tmp = tor_malloc(DIGEST_LEN); memcpy(digest_tmp, digest, DIGEST_LEN); smartlist_add(result, digest_tmp); } return result; } /** Return a smartlist of all router descriptor digests in the current * consensus */ MOCK_IMPL(smartlist_t *, router_get_descriptor_digests,(void)) { smartlist_t *result = NULL; if (current_ns_consensus) { result = router_get_descriptor_digests_in_consensus(current_ns_consensus); } return result; } /** Given the digest of a router descriptor, return its current download * status, or NULL if the digest is unrecognized. */ MOCK_IMPL(download_status_t *, router_get_dl_status_by_descriptor_digest,(const char *d)) { routerstatus_t *rs; if (!current_ns_consensus) return NULL; if ((rs = router_get_mutable_consensus_status_by_descriptor_digest( current_ns_consensus, d))) return &rs->dl_status; return NULL; } /** As router_get_consensus_status_by_id, but do not return a const pointer */ routerstatus_t * router_get_mutable_consensus_status_by_id(const char *digest) { const networkstatus_t *ns = networkstatus_get_latest_consensus(); if (!ns) return NULL; smartlist_t *rslist = ns->routerstatus_list; return smartlist_bsearch(rslist, digest, compare_digest_to_routerstatus_entry); } /** Return the consensus view of the status of the router whose identity * digest is digest, or NULL if we don't know about any such router. */ const routerstatus_t * router_get_consensus_status_by_id(const char *digest) { return router_get_mutable_consensus_status_by_id(digest); } /** Given a nickname (possibly verbose, possibly a hexadecimal digest), return * the corresponding routerstatus_t, or NULL if none exists. Warn the * user if warn_if_unnamed is set, and they have specified a router by * nickname, but the Named flag isn't set for that router. */ const routerstatus_t * router_get_consensus_status_by_nickname(const char *nickname, int warn_if_unnamed) { const node_t *node = node_get_by_nickname(nickname, warn_if_unnamed); if (node) return node->rs; else return NULL; } /** Return the identity digest that's mapped to officially by * nickname. */ const char * networkstatus_get_router_digest_by_nickname(const char *nickname) { if (!named_server_map) return NULL; return strmap_get_lc(named_server_map, nickname); } /** Return true iff nickname is disallowed from being the nickname * of any server. */ int networkstatus_nickname_is_unnamed(const char *nickname) { if (!unnamed_server_map) return 0; return strmap_get_lc(unnamed_server_map, nickname) != NULL; } /** How frequently do directory authorities re-download fresh networkstatus * documents? */ #define AUTHORITY_NS_CACHE_INTERVAL (10*60) /** How frequently do non-authority directory caches re-download fresh * networkstatus documents? */ #define NONAUTHORITY_NS_CACHE_INTERVAL (60*60) /** Return true iff, given the options listed in options, flavor * is the flavor of a consensus networkstatus that we would like to fetch. */ static int we_want_to_fetch_flavor(const or_options_t *options, int flavor) { if (flavor < 0 || flavor > N_CONSENSUS_FLAVORS) { /* This flavor is crazy; we don't want it */ /*XXXX handle unrecognized flavors later */ return 0; } if (authdir_mode_v3(options) || directory_caches_dir_info(options)) { /* We want to serve all flavors to others, regardless if we would use * it ourselves. */ return 1; } if (options->FetchUselessDescriptors) { /* In order to get all descriptors, we need to fetch all consensuses. */ return 1; } /* Otherwise, we want the flavor only if we want to use it to build * circuits. */ return flavor == usable_consensus_flavor(); } /** How long will we hang onto a possibly live consensus for which we're * fetching certs before we check whether there is a better one? */ #define DELAY_WHILE_FETCHING_CERTS (20*60) /** What is the minimum time we need to have waited fetching certs, before we * increment the consensus download schedule on failure? */ #define MIN_DELAY_FOR_FETCH_CERT_STATUS_FAILURE (1*60) /* Check if a downloaded consensus flavor should still wait for certificates * to download now. If we decide not to wait, check if enough time has passed * to consider the certificate download failure a separate failure. If so, * fail dls. * If waiting for certificates to download, return 1. If not, return 0. */ static int check_consensus_waiting_for_certs(int flavor, time_t now, download_status_t *dls) { consensus_waiting_for_certs_t *waiting; /* We should always have a known flavor, because we_want_to_fetch_flavor() * filters out unknown flavors. */ tor_assert(flavor >= 0 && flavor < N_CONSENSUS_FLAVORS); waiting = &consensus_waiting_for_certs[flavor]; if (waiting->consensus) { /* XXXX make sure this doesn't delay sane downloads. */ if (waiting->set_at + DELAY_WHILE_FETCHING_CERTS > now && waiting->consensus->valid_until > now) { return 1; } else { if (!waiting->dl_failed) { if (waiting->set_at + MIN_DELAY_FOR_FETCH_CERT_STATUS_FAILURE > now) { download_status_failed(dls, 0); } waiting->dl_failed=1; } } } return 0; } /** If we want to download a fresh consensus, launch a new download as * appropriate. */ static void update_consensus_networkstatus_downloads(time_t now) { int i; const or_options_t *options = get_options(); const int we_are_bootstrapping = networkstatus_consensus_is_bootstrapping( now); const int use_multi_conn = networkstatus_consensus_can_use_multiple_directories(options); if (should_delay_dir_fetches(options, NULL)) return; for (i=0; i < N_CONSENSUS_FLAVORS; ++i) { /* XXXX need some way to download unknown flavors if we are caching. */ const char *resource; networkstatus_t *c; int max_in_progress_conns = 1; if (! we_want_to_fetch_flavor(options, i)) continue; c = networkstatus_get_latest_consensus_by_flavor(i); if (! (c && c->valid_after <= now && now <= c->valid_until)) { /* No live consensus? Get one now!*/ time_to_download_next_consensus[i] = now; } if (time_to_download_next_consensus[i] > now) continue; /* Wait until the current consensus is older. */ resource = networkstatus_get_flavor_name(i); /* Check if we already have enough connections in progress */ if (we_are_bootstrapping && use_multi_conn) { max_in_progress_conns = options->ClientBootstrapConsensusMaxInProgressTries; } if (connection_dir_count_by_purpose_and_resource( DIR_PURPOSE_FETCH_CONSENSUS, resource) >= max_in_progress_conns) { continue; } /* Check if we want to launch another download for a usable consensus. * Only used during bootstrap. */ if (we_are_bootstrapping && use_multi_conn && i == usable_consensus_flavor()) { /* Check if we're already downloading a usable consensus */ if (networkstatus_consensus_is_already_downloading(resource)) continue; /* Make multiple connections for a bootstrap consensus download. */ update_consensus_bootstrap_multiple_downloads(now, options); } else { /* Check if we failed downloading a consensus too recently */ int max_dl_tries = options->TestingConsensusMaxDownloadTries; /* Let's make sure we remembered to update consensus_dl_status */ tor_assert(consensus_dl_status[i].schedule == DL_SCHED_CONSENSUS); if (!download_status_is_ready(&consensus_dl_status[i], now, max_dl_tries)) { continue; } /* Check if we're waiting for certificates to download */ if (check_consensus_waiting_for_certs(i, now, &consensus_dl_status[i])) continue; /* Try the requested attempt */ log_info(LD_DIR, "Launching %s standard networkstatus consensus " "download.", networkstatus_get_flavor_name(i)); directory_get_from_dirserver(DIR_PURPOSE_FETCH_CONSENSUS, ROUTER_PURPOSE_GENERAL, resource, PDS_RETRY_IF_NO_SERVERS, consensus_dl_status[i].want_authority); } } } /** When we're bootstrapping, launch one or more consensus download * connections, if schedule indicates connection(s) should be made after now. * If is_authority, connect to an authority, otherwise, use a fallback * directory mirror. */ static void update_consensus_bootstrap_attempt_downloads( time_t now, const or_options_t *options, download_status_t *dls, download_want_authority_t want_authority) { int use_fallbacks = networkstatus_consensus_can_use_extra_fallbacks(options); int max_dl_tries = options->ClientBootstrapConsensusMaxDownloadTries; if (!use_fallbacks) { max_dl_tries = options->ClientBootstrapConsensusAuthorityOnlyMaxDownloadTries; } const char *resource = networkstatus_get_flavor_name( usable_consensus_flavor()); /* Let's make sure we remembered to update schedule */ tor_assert(dls->schedule == DL_SCHED_CONSENSUS); /* Allow for multiple connections in the same second, if the schedule value * is 0. */ while (download_status_is_ready(dls, now, max_dl_tries)) { log_info(LD_DIR, "Launching %s bootstrap %s networkstatus consensus " "download.", resource, (want_authority == DL_WANT_AUTHORITY ? "authority" : "mirror")); directory_get_from_dirserver(DIR_PURPOSE_FETCH_CONSENSUS, ROUTER_PURPOSE_GENERAL, resource, PDS_RETRY_IF_NO_SERVERS, want_authority); /* schedule the next attempt */ download_status_increment_attempt(dls, resource, now); } } /** If we're bootstrapping, check the connection schedules and see if we want * to make additional, potentially concurrent, consensus download * connections. * Only call when bootstrapping, and when we want to make additional * connections. Only nodes that satisfy * networkstatus_consensus_can_use_multiple_directories make additional * connections. */ static void update_consensus_bootstrap_multiple_downloads(time_t now, const or_options_t *options) { const int usable_flavor = usable_consensus_flavor(); /* make sure we can use multiple connections */ if (!networkstatus_consensus_can_use_multiple_directories(options)) { return; } /* Launch concurrent consensus download attempt(s) based on the mirror and * authority schedules. Try the mirror first - this makes it slightly more * likely that we'll connect to the fallback first, and then end the * authority connection attempt. */ /* If a consensus download fails because it's waiting for certificates, * we'll fail both the authority and fallback schedules. This is better than * failing only one of the schedules, and having the other continue * unchecked. */ /* If we don't have or can't use extra fallbacks, don't try them. */ if (networkstatus_consensus_can_use_extra_fallbacks(options)) { download_status_t *dls_f = &consensus_bootstrap_dl_status[CONSENSUS_BOOTSTRAP_SOURCE_ANY_DIRSERVER]; if (!check_consensus_waiting_for_certs(usable_flavor, now, dls_f)) { /* During bootstrap, DL_WANT_ANY_DIRSERVER means "use fallbacks". */ update_consensus_bootstrap_attempt_downloads(now, options, dls_f, DL_WANT_ANY_DIRSERVER); } } /* Now try an authority. */ download_status_t *dls_a = &consensus_bootstrap_dl_status[CONSENSUS_BOOTSTRAP_SOURCE_AUTHORITY]; if (!check_consensus_waiting_for_certs(usable_flavor, now, dls_a)) { update_consensus_bootstrap_attempt_downloads(now, options, dls_a, DL_WANT_AUTHORITY); } } /** Called when an attempt to download a consensus fails: note that the * failure occurred, and possibly retry. */ void networkstatus_consensus_download_failed(int status_code, const char *flavname) { int flav = networkstatus_parse_flavor_name(flavname); if (flav >= 0) { tor_assert(flav < N_CONSENSUS_FLAVORS); /* XXXX handle unrecognized flavors */ download_status_failed(&consensus_dl_status[flav], status_code); /* Retry immediately, if appropriate. */ update_consensus_networkstatus_downloads(time(NULL)); } } /** How long do we (as a cache) wait after a consensus becomes non-fresh * before trying to fetch another? */ #define CONSENSUS_MIN_SECONDS_BEFORE_CACHING 120 /** Update the time at which we'll consider replacing the current * consensus of flavor flav */ static void update_consensus_networkstatus_fetch_time_impl(time_t now, int flav) { const or_options_t *options = get_options(); networkstatus_t *c = networkstatus_get_latest_consensus_by_flavor(flav); const char *flavor = networkstatus_get_flavor_name(flav); if (! we_want_to_fetch_flavor(get_options(), flav)) return; if (c && c->valid_after <= now && now <= c->valid_until) { long dl_interval; long interval = c->fresh_until - c->valid_after; long min_sec_before_caching = CONSENSUS_MIN_SECONDS_BEFORE_CACHING; time_t start; if (min_sec_before_caching > interval/16) { /* Usually we allow 2-minutes slop factor in case clocks get desynchronized a little. If we're on a private network with a crazy-fast voting interval, though, 2 minutes may be too much. */ min_sec_before_caching = interval/16; /* make sure we always delay by at least a second before caching */ if (min_sec_before_caching == 0) { min_sec_before_caching = 1; } } if (directory_fetches_dir_info_early(options)) { /* We want to cache the next one at some point after this one * is no longer fresh... */ start = (time_t)(c->fresh_until + min_sec_before_caching); /* Some clients may need the consensus sooner than others. */ if (options->FetchDirInfoExtraEarly || authdir_mode_v3(options)) { dl_interval = 60; if (min_sec_before_caching + dl_interval > interval) dl_interval = interval/2; } else { /* But only in the first half-interval after that. */ dl_interval = interval/2; } } else { /* We're an ordinary client, a bridge, or a hidden service. * Give all the caches enough time to download the consensus. */ start = (time_t)(c->fresh_until + (interval*3)/4); /* But download the next one well before this one is expired. */ dl_interval = ((c->valid_until - start) * 7 )/ 8; /* If we're a bridge user, make use of the numbers we just computed * to choose the rest of the interval *after* them. */ if (directory_fetches_dir_info_later(options)) { /* Give all the *clients* enough time to download the consensus. */ start = (time_t)(start + dl_interval + min_sec_before_caching); /* But try to get it before ours actually expires. */ dl_interval = (c->valid_until - start) - min_sec_before_caching; } } /* catch low dl_interval in crazy-fast networks */ if (dl_interval < 1) dl_interval = 1; /* catch late start in crazy-fast networks */ if (start+dl_interval >= c->valid_until) start = c->valid_until - dl_interval - 1; log_debug(LD_DIR, "fresh_until: %ld start: %ld " "dl_interval: %ld valid_until: %ld ", (long)c->fresh_until, (long)start, dl_interval, (long)c->valid_until); /* We must not try to replace c while it's still fresh: */ tor_assert(c->fresh_until < start); /* We must download the next one before c is invalid: */ tor_assert(start+dl_interval < c->valid_until); time_to_download_next_consensus[flav] = start + crypto_rand_int((int)dl_interval); { char tbuf1[ISO_TIME_LEN+1]; char tbuf2[ISO_TIME_LEN+1]; char tbuf3[ISO_TIME_LEN+1]; format_local_iso_time(tbuf1, c->fresh_until); format_local_iso_time(tbuf2, c->valid_until); format_local_iso_time(tbuf3, time_to_download_next_consensus[flav]); log_info(LD_DIR, "Live %s consensus %s the most recent until %s and " "will expire at %s; fetching the next one at %s.", flavor, (c->fresh_until > now) ? "will be" : "was", tbuf1, tbuf2, tbuf3); } } else { time_to_download_next_consensus[flav] = now; log_info(LD_DIR, "No live %s consensus; we should fetch one immediately.", flavor); } } /** Update the time at which we'll consider replacing the current * consensus of flavor 'flavor' */ void update_consensus_networkstatus_fetch_time(time_t now) { int i; for (i = 0; i < N_CONSENSUS_FLAVORS; ++i) { if (we_want_to_fetch_flavor(get_options(), i)) update_consensus_networkstatus_fetch_time_impl(now, i); } } /** Return 1 if there's a reason we shouldn't try any directory * fetches yet (e.g. we demand bridges and none are yet known). * Else return 0. * If we return 1 and msg_out is provided, set msg_out * to an explanation of why directory fetches are delayed. (If we * return 0, we set msg_out to NULL.) */ int should_delay_dir_fetches(const or_options_t *options, const char **msg_out) { if (msg_out) { *msg_out = NULL; } if (options->DisableNetwork) { if (msg_out) { *msg_out = "DisableNetwork is set."; } log_info(LD_DIR, "Delaying dir fetches (DisableNetwork is set)"); return 1; } if (options->UseBridges) { if (!any_bridge_descriptors_known()) { if (msg_out) { *msg_out = "No running bridges"; } log_info(LD_DIR, "Delaying dir fetches (no running bridges known)"); return 1; } if (pt_proxies_configuration_pending()) { if (msg_out) { *msg_out = "Pluggable transport proxies still configuring"; } log_info(LD_DIR, "Delaying dir fetches (pt proxies still configuring)"); return 1; } } return 0; } /** Launch requests for networkstatus documents and authority certificates as * appropriate. */ void update_networkstatus_downloads(time_t now) { const or_options_t *options = get_options(); if (should_delay_dir_fetches(options, NULL)) return; update_consensus_networkstatus_downloads(now); update_certificate_downloads(now); } /** Launch requests as appropriate for missing directory authority * certificates. */ void update_certificate_downloads(time_t now) { int i; for (i = 0; i < N_CONSENSUS_FLAVORS; ++i) { if (consensus_waiting_for_certs[i].consensus) authority_certs_fetch_missing(consensus_waiting_for_certs[i].consensus, now, NULL); } if (current_ns_consensus) authority_certs_fetch_missing(current_ns_consensus, now, NULL); if (current_md_consensus) authority_certs_fetch_missing(current_md_consensus, now, NULL); } /** Return 1 if we have a consensus but we don't have enough certificates * to start using it yet. */ int consensus_is_waiting_for_certs(void) { return consensus_waiting_for_certs[usable_consensus_flavor()].consensus ? 1 : 0; } /** Look up the currently active (depending on bootstrap status) download * status for this consensus flavor and return a pointer to it. */ MOCK_IMPL(download_status_t *, networkstatus_get_dl_status_by_flavor,(consensus_flavor_t flavor)) { download_status_t *dl = NULL; const int we_are_bootstrapping = networkstatus_consensus_is_bootstrapping(time(NULL)); if ((int)flavor <= N_CONSENSUS_FLAVORS) { dl = &((we_are_bootstrapping ? consensus_bootstrap_dl_status : consensus_dl_status)[flavor]); } return dl; } /** Look up the bootstrap download status for this consensus flavor * and return a pointer to it. */ MOCK_IMPL(download_status_t *, networkstatus_get_dl_status_by_flavor_bootstrap,(consensus_flavor_t flavor)) { download_status_t *dl = NULL; if ((int)flavor <= N_CONSENSUS_FLAVORS) { dl = &(consensus_bootstrap_dl_status[flavor]); } return dl; } /** Look up the running (non-bootstrap) download status for this consensus * flavor and return a pointer to it. */ MOCK_IMPL(download_status_t *, networkstatus_get_dl_status_by_flavor_running,(consensus_flavor_t flavor)) { download_status_t *dl = NULL; if ((int)flavor <= N_CONSENSUS_FLAVORS) { dl = &(consensus_dl_status[flavor]); } return dl; } /** Return the most recent consensus that we have downloaded, or NULL if we * don't have one. */ MOCK_IMPL(networkstatus_t *, networkstatus_get_latest_consensus,(void)) { if (we_use_microdescriptors_for_circuits(get_options())) return current_md_consensus; else return current_ns_consensus; } /** Return the latest consensus we have whose flavor matches f, or NULL * if we don't have one. */ MOCK_IMPL(networkstatus_t *, networkstatus_get_latest_consensus_by_flavor,(consensus_flavor_t f)) { if (f == FLAV_NS) return current_ns_consensus; else if (f == FLAV_MICRODESC) return current_md_consensus; else { tor_assert(0); return NULL; } } /** Return the most recent consensus that we have downloaded, or NULL if it is * no longer live. */ MOCK_IMPL(networkstatus_t *, networkstatus_get_live_consensus,(time_t now)) { if (networkstatus_get_latest_consensus() && networkstatus_get_latest_consensus()->valid_after <= now && now <= networkstatus_get_latest_consensus()->valid_until) return networkstatus_get_latest_consensus(); else return NULL; } /* XXXX remove this in favor of get_live_consensus. But actually, * leave something like it for bridge users, who need to not totally * lose if they spend a while fetching a new consensus. */ /** As networkstatus_get_live_consensus(), but is way more tolerant of expired * consensuses. */ networkstatus_t * networkstatus_get_reasonably_live_consensus(time_t now, int flavor) { #define REASONABLY_LIVE_TIME (24*60*60) networkstatus_t *consensus = networkstatus_get_latest_consensus_by_flavor(flavor); if (consensus && consensus->valid_after <= now && now <= consensus->valid_until+REASONABLY_LIVE_TIME) return consensus; else return NULL; } /** Check if we need to download a consensus during tor's bootstrap phase. * If we have no consensus, or our consensus is unusably old, return 1. * As soon as we have received a consensus, return 0, even if we don't have * enough certificates to validate it. * If a fallback directory gives us a consensus we can never get certs for, * check_consensus_waiting_for_certs() will wait 20 minutes before failing * the cert downloads. After that, a new consensus will be fetched from a * randomly chosen fallback. */ MOCK_IMPL(int, networkstatus_consensus_is_bootstrapping,(time_t now)) { /* If we have a validated, reasonably live consensus, we're not * bootstrapping a consensus at all. */ if (networkstatus_get_reasonably_live_consensus( now, usable_consensus_flavor())) { return 0; } /* If we have a consensus, but we're waiting for certificates, * we're not waiting for a consensus download while bootstrapping. */ if (consensus_is_waiting_for_certs()) { return 0; } /* If we have no consensus, or our consensus is very old, we are * bootstrapping, and we need to download a consensus. */ return 1; } /** Check if we can use multiple directories for a consensus download. * Only clients (including bridge relays, which act like clients) benefit * from multiple simultaneous consensus downloads. */ int networkstatus_consensus_can_use_multiple_directories( const or_options_t *options) { /* If we are a client, bridge, bridge client, or hidden service */ return !public_server_mode(options); } /** Check if we can use fallback directory mirrors for a consensus download. * If we have fallbacks and don't want to fetch from the authorities, * we can use them. */ MOCK_IMPL(int, networkstatus_consensus_can_use_extra_fallbacks,(const or_options_t *options)) { /* The list length comparisons are a quick way to check if we have any * non-authority fallback directories. If we ever have any authorities that * aren't fallback directories, we will need to change this code. */ tor_assert(smartlist_len(router_get_fallback_dir_servers()) >= smartlist_len(router_get_trusted_dir_servers())); /* If we don't fetch from the authorities, and we have additional mirrors, * we can use them. */ return (!directory_fetches_from_authorities(options) && (smartlist_len(router_get_fallback_dir_servers()) > smartlist_len(router_get_trusted_dir_servers()))); } /* Is there a consensus fetch for flavor resource that's far * enough along to be attached to a circuit? */ int networkstatus_consensus_is_already_downloading(const char *resource) { int answer = 0; /* First, get a list of all the dir conns that are fetching a consensus, * fetching *this* consensus, and are in state "reading" (meaning they * have already flushed their request onto the socks connection). */ smartlist_t *fetching_conns = connection_dir_list_by_purpose_resource_and_state( DIR_PURPOSE_FETCH_CONSENSUS, resource, DIR_CONN_STATE_CLIENT_READING); /* Then, walk through each conn, to see if its linked socks connection * is in an attached state. We have to check this separately, since with * the optimistic data feature, fetches can send their request to the * socks connection and go into state 'reading', even before they're * attached to any circuit. */ SMARTLIST_FOREACH_BEGIN(fetching_conns, dir_connection_t *, dirconn) { /* Do any of these other dir conns have a linked socks conn that is * attached to a circuit already? */ connection_t *base = TO_CONN(dirconn); if (base->linked_conn && base->linked_conn->type == CONN_TYPE_AP && !AP_CONN_STATE_IS_UNATTACHED(base->linked_conn->state)) { answer = 1; break; /* stop looping, because we know the answer will be yes */ } } SMARTLIST_FOREACH_END(dirconn); smartlist_free(fetching_conns); return answer; } /** Given two router status entries for the same router identity, return 1 if * if the contents have changed between them. Otherwise, return 0. */ static int routerstatus_has_changed(const routerstatus_t *a, const routerstatus_t *b) { tor_assert(tor_memeq(a->identity_digest, b->identity_digest, DIGEST_LEN)); return strcmp(a->nickname, b->nickname) || fast_memneq(a->descriptor_digest, b->descriptor_digest, DIGEST_LEN) || a->addr != b->addr || a->or_port != b->or_port || a->dir_port != b->dir_port || a->is_authority != b->is_authority || a->is_exit != b->is_exit || a->is_stable != b->is_stable || a->is_fast != b->is_fast || a->is_flagged_running != b->is_flagged_running || a->is_named != b->is_named || a->is_unnamed != b->is_unnamed || a->is_valid != b->is_valid || a->is_possible_guard != b->is_possible_guard || a->is_bad_exit != b->is_bad_exit || a->is_hs_dir != b->is_hs_dir; // XXXX this function needs a huge refactoring; it has gotten out // XXXX of sync with routerstatus_t, and it will do so again. } /** Notify controllers of any router status entries that changed between * old_c and new_c. */ static void notify_control_networkstatus_changed(const networkstatus_t *old_c, const networkstatus_t *new_c) { smartlist_t *changed; if (old_c == new_c) return; /* tell the controller exactly which relays are still listed, as well * as what they're listed as */ control_event_newconsensus(new_c); if (!control_event_is_interesting(EVENT_NS)) return; if (!old_c) { control_event_networkstatus_changed(new_c->routerstatus_list); return; } changed = smartlist_new(); SMARTLIST_FOREACH_JOIN( old_c->routerstatus_list, const routerstatus_t *, rs_old, new_c->routerstatus_list, const routerstatus_t *, rs_new, tor_memcmp(rs_old->identity_digest, rs_new->identity_digest, DIGEST_LEN), smartlist_add(changed, (void*) rs_new)) { if (routerstatus_has_changed(rs_old, rs_new)) smartlist_add(changed, (void*)rs_new); } SMARTLIST_FOREACH_JOIN_END(rs_old, rs_new); control_event_networkstatus_changed(changed); smartlist_free(changed); } /** Copy all the ancillary information (like router download status and so on) * from old_c to new_c. */ static void networkstatus_copy_old_consensus_info(networkstatus_t *new_c, const networkstatus_t *old_c) { if (old_c == new_c) return; if (!old_c || !smartlist_len(old_c->routerstatus_list)) return; SMARTLIST_FOREACH_JOIN(old_c->routerstatus_list, routerstatus_t *, rs_old, new_c->routerstatus_list, routerstatus_t *, rs_new, tor_memcmp(rs_old->identity_digest, rs_new->identity_digest, DIGEST_LEN), STMT_NIL) { /* Okay, so we're looking at the same identity. */ rs_new->last_dir_503_at = rs_old->last_dir_503_at; if (tor_memeq(rs_old->descriptor_digest, rs_new->descriptor_digest, DIGEST256_LEN)) { /* And the same descriptor too! */ memcpy(&rs_new->dl_status, &rs_old->dl_status,sizeof(download_status_t)); } } SMARTLIST_FOREACH_JOIN_END(rs_old, rs_new); } #ifdef TOR_UNIT_TESTS /**Accept a flavor consensus c without any additional * validation. This is exclusively for unit tests. * We copy any ancillary information from a pre-existing consensus * and then free the current one and replace it with the newly * provided instance. Returns -1 on unrecognized flavor, 0 otherwise. */ int networkstatus_set_current_consensus_from_ns(networkstatus_t *c, const char *flavor) { int flav = networkstatus_parse_flavor_name(flavor); switch (flav) { case FLAV_NS: if (current_ns_consensus) { networkstatus_copy_old_consensus_info(c, current_ns_consensus); networkstatus_vote_free(current_ns_consensus); } current_ns_consensus = c; break; case FLAV_MICRODESC: if (current_md_consensus) { networkstatus_copy_old_consensus_info(c, current_md_consensus); networkstatus_vote_free(current_md_consensus); } current_md_consensus = c; break; } return current_md_consensus ? 0 : -1; } #endif //TOR_UNIT_TESTS /** * Return true if any option is set in options to make us behave * as a client. * * XXXX If we need this elsewhere at any point, we should make it nonstatic * XXXX and move it into another file. */ static int any_client_port_set(const or_options_t *options) { return (options->SocksPort_set || options->TransPort_set || options->NATDPort_set || options->ControlPort_set || options->DNSPort_set); } /** * Helper for handle_missing_protocol_warning: handles either the * client case (if is_client is set) or the server case otherwise. */ static void handle_missing_protocol_warning_impl(const networkstatus_t *c, int is_client) { char *protocol_warning = NULL; int should_exit = networkstatus_check_required_protocols(c, is_client, &protocol_warning); if (protocol_warning) { tor_log(should_exit ? LOG_ERR : LOG_WARN, LD_GENERAL, "%s", protocol_warning); } if (should_exit) { tor_assert_nonfatal(protocol_warning); } tor_free(protocol_warning); if (should_exit) exit(1); } /** Called when we have received a networkstatus c. If there are * any _required_ protocols we are missing, log an error and exit * immediately. If there are any _recommended_ protocols we are missing, * warn. */ static void handle_missing_protocol_warning(const networkstatus_t *c, const or_options_t *options) { const int is_server = server_mode(options); const int is_client = any_client_port_set(options) || !is_server; if (is_server) handle_missing_protocol_warning_impl(c, 0); if (is_client) handle_missing_protocol_warning_impl(c, 1); } /** Try to replace the current cached v3 networkstatus with the one in * consensus. If we don't have enough certificates to validate it, * store it in consensus_waiting_for_certs and launch a certificate fetch. * * If flags & NSSET_FROM_CACHE, this networkstatus has come from the disk * cache. If flags & NSSET_WAS_WAITING_FOR_CERTS, this networkstatus was * already received, but we were waiting for certificates on it. If flags & * NSSET_DONT_DOWNLOAD_CERTS, do not launch certificate downloads as needed. * If flags & NSSET_ACCEPT_OBSOLETE, then we should be willing to take this * consensus, even if it comes from many days in the past. * * If source_dir is non-NULL, it's the identity digest for a directory that * we've just successfully retrieved a consensus or certificates from, so try * it first to fetch any missing certificates. * * Return 0 on success, <0 on failure. On failure, caller should increment * the failure count as appropriate. * * We return -1 for mild failures that don't need to be reported to the * user, and -2 for more serious problems. */ int networkstatus_set_current_consensus(const char *consensus, const char *flavor, unsigned flags, const char *source_dir) { networkstatus_t *c=NULL; int r, result = -1; time_t now = time(NULL); const or_options_t *options = get_options(); char *unverified_fname = NULL, *consensus_fname = NULL; int flav = networkstatus_parse_flavor_name(flavor); const unsigned from_cache = flags & NSSET_FROM_CACHE; const unsigned was_waiting_for_certs = flags & NSSET_WAS_WAITING_FOR_CERTS; const unsigned dl_certs = !(flags & NSSET_DONT_DOWNLOAD_CERTS); const unsigned accept_obsolete = flags & NSSET_ACCEPT_OBSOLETE; const unsigned require_flavor = flags & NSSET_REQUIRE_FLAVOR; const common_digests_t *current_digests = NULL; consensus_waiting_for_certs_t *waiting = NULL; time_t current_valid_after = 0; int free_consensus = 1; /* Free 'c' at the end of the function */ int old_ewma_enabled; int checked_protocols_already = 0; if (flav < 0) { /* XXXX we don't handle unrecognized flavors yet. */ log_warn(LD_BUG, "Unrecognized consensus flavor %s", flavor); return -2; } /* Make sure it's parseable. */ c = networkstatus_parse_vote_from_string(consensus, NULL, NS_TYPE_CONSENSUS); if (!c) { log_warn(LD_DIR, "Unable to parse networkstatus consensus"); result = -2; goto done; } if (from_cache && !was_waiting_for_certs) { /* We previously stored this; check _now_ to make sure that version-kills * really work. This happens even before we check signatures: we did so * before when we stored this to disk. This does mean an attacker who can * write to the datadir can make us not start: such an attacker could * already harm us by replacing our guards, which would be worse. */ checked_protocols_already = 1; handle_missing_protocol_warning(c, options); } if ((int)c->flavor != flav) { /* This wasn't the flavor we thought we were getting. */ if (require_flavor) { log_warn(LD_DIR, "Got consensus with unexpected flavor %s (wanted %s)", networkstatus_get_flavor_name(c->flavor), flavor); goto done; } flav = c->flavor; flavor = networkstatus_get_flavor_name(flav); } if (flav != usable_consensus_flavor() && !directory_caches_dir_info(options)) { /* This consensus is totally boring to us: we won't use it, and we won't * serve it. Drop it. */ goto done; } if (from_cache && !accept_obsolete && c->valid_until < now-OLD_ROUTER_DESC_MAX_AGE) { log_info(LD_DIR, "Loaded an expired consensus. Discarding."); goto done; } if (!strcmp(flavor, "ns")) { consensus_fname = get_datadir_fname("cached-consensus"); unverified_fname = get_datadir_fname("unverified-consensus"); if (current_ns_consensus) { current_digests = ¤t_ns_consensus->digests; current_valid_after = current_ns_consensus->valid_after; } } else if (!strcmp(flavor, "microdesc")) { consensus_fname = get_datadir_fname("cached-microdesc-consensus"); unverified_fname = get_datadir_fname("unverified-microdesc-consensus"); if (current_md_consensus) { current_digests = ¤t_md_consensus->digests; current_valid_after = current_md_consensus->valid_after; } } else { cached_dir_t *cur; char buf[128]; tor_snprintf(buf, sizeof(buf), "cached-%s-consensus", flavor); consensus_fname = get_datadir_fname(buf); tor_snprintf(buf, sizeof(buf), "unverified-%s-consensus", flavor); unverified_fname = get_datadir_fname(buf); cur = dirserv_get_consensus(flavor); if (cur) { current_digests = &cur->digests; current_valid_after = cur->published; } } if (current_digests && tor_memeq(&c->digests, current_digests, sizeof(c->digests))) { /* We already have this one. That's a failure. */ log_info(LD_DIR, "Got a %s consensus we already have", flavor); goto done; } if (current_valid_after && c->valid_after <= current_valid_after) { /* We have a newer one. There's no point in accepting this one, * even if it's great. */ log_info(LD_DIR, "Got a %s consensus at least as old as the one we have", flavor); goto done; } /* Make sure it's signed enough. */ if ((r=networkstatus_check_consensus_signature(c, 1))<0) { if (r == -1) { /* Okay, so it _might_ be signed enough if we get more certificates. */ if (!was_waiting_for_certs) { log_info(LD_DIR, "Not enough certificates to check networkstatus consensus"); } if (!current_valid_after || c->valid_after > current_valid_after) { waiting = &consensus_waiting_for_certs[flav]; networkstatus_vote_free(waiting->consensus); tor_free(waiting->body); waiting->consensus = c; free_consensus = 0; waiting->body = tor_strdup(consensus); waiting->set_at = now; waiting->dl_failed = 0; if (!from_cache) { write_str_to_file(unverified_fname, consensus, 0); } if (dl_certs) authority_certs_fetch_missing(c, now, source_dir); /* This case is not a success or a failure until we get the certs * or fail to get the certs. */ result = 0; } else { /* Even if we had enough signatures, we'd never use this as the * latest consensus. */ if (was_waiting_for_certs && from_cache) if (unlink(unverified_fname) != 0) { log_warn(LD_FS, "Failed to unlink %s: %s", unverified_fname, strerror(errno)); } } goto done; } else { /* This can never be signed enough: Kill it. */ if (!was_waiting_for_certs) { log_warn(LD_DIR, "Not enough good signatures on networkstatus " "consensus"); result = -2; } if (was_waiting_for_certs && (r < -1) && from_cache) { if (unlink(unverified_fname) != 0) { log_warn(LD_FS, "Failed to unlink %s: %s", unverified_fname, strerror(errno)); } } goto done; } } if (!from_cache && flav == usable_consensus_flavor()) control_event_client_status(LOG_NOTICE, "CONSENSUS_ARRIVED"); if (!checked_protocols_already) { handle_missing_protocol_warning(c, options); } /* Are we missing any certificates at all? */ if (r != 1 && dl_certs) authority_certs_fetch_missing(c, now, source_dir); const int is_usable_flavor = flav == usable_consensus_flavor(); if (is_usable_flavor) { notify_control_networkstatus_changed( networkstatus_get_latest_consensus(), c); } if (flav == FLAV_NS) { if (current_ns_consensus) { networkstatus_copy_old_consensus_info(c, current_ns_consensus); networkstatus_vote_free(current_ns_consensus); /* Defensive programming : we should set current_ns_consensus very soon * but we're about to call some stuff in the meantime, and leaving this * dangling pointer around has proven to be trouble. */ current_ns_consensus = NULL; } current_ns_consensus = c; free_consensus = 0; /* avoid free */ } else if (flav == FLAV_MICRODESC) { if (current_md_consensus) { networkstatus_copy_old_consensus_info(c, current_md_consensus); networkstatus_vote_free(current_md_consensus); /* more defensive programming */ current_md_consensus = NULL; } current_md_consensus = c; free_consensus = 0; /* avoid free */ } waiting = &consensus_waiting_for_certs[flav]; if (waiting->consensus && waiting->consensus->valid_after <= c->valid_after) { networkstatus_vote_free(waiting->consensus); waiting->consensus = NULL; if (consensus != waiting->body) tor_free(waiting->body); else waiting->body = NULL; waiting->set_at = 0; waiting->dl_failed = 0; if (unlink(unverified_fname) != 0) { log_warn(LD_FS, "Failed to unlink %s: %s", unverified_fname, strerror(errno)); } } if (is_usable_flavor) { nodelist_set_consensus(c); /* XXXXNM Microdescs: needs a non-ns variant. ???? NM*/ update_consensus_networkstatus_fetch_time(now); dirvote_recalculate_timing(options, now); routerstatus_list_update_named_server_map(); /* Update ewma and adjust policy if needed; first cache the old value */ old_ewma_enabled = cell_ewma_enabled(); /* Change the cell EWMA settings */ cell_ewma_set_scale_factor(options, c); /* If we just enabled ewma, set the cmux policy on all active channels */ if (cell_ewma_enabled() && !old_ewma_enabled) { channel_set_cmux_policy_everywhere(&ewma_policy); } else if (!cell_ewma_enabled() && old_ewma_enabled) { /* Turn it off everywhere */ channel_set_cmux_policy_everywhere(NULL); } /* XXXX this call might be unnecessary here: can changing the * current consensus really alter our view of any OR's rate limits? */ connection_or_update_token_buckets(get_connection_array(), options); circuit_build_times_new_consensus_params( get_circuit_build_times_mutable(), c); } /* Reset the failure count only if this consensus is actually valid. */ if (c->valid_after <= now && now <= c->valid_until) { download_status_reset(&consensus_dl_status[flav]); } else { if (!from_cache) download_status_failed(&consensus_dl_status[flav], 0); } if (directory_caches_dir_info(options)) { dirserv_set_cached_consensus_networkstatus(consensus, flavor, &c->digests, c->valid_after); } if (!from_cache) { write_str_to_file(consensus_fname, consensus, 0); } /** If a consensus appears more than this many seconds before its declared * valid-after time, declare that our clock is skewed. */ #define EARLY_CONSENSUS_NOTICE_SKEW 60 if (now < c->valid_after - EARLY_CONSENSUS_NOTICE_SKEW) { char tbuf[ISO_TIME_LEN+1]; char dbuf[64]; long delta = now - c->valid_after; format_iso_time(tbuf, c->valid_after); format_time_interval(dbuf, sizeof(dbuf), delta); log_warn(LD_GENERAL, "Our clock is %s behind the time published in the " "consensus network status document (%s UTC). Tor needs an " "accurate clock to work correctly. Please check your time and " "date settings!", dbuf, tbuf); control_event_general_status(LOG_WARN, "CLOCK_SKEW MIN_SKEW=%ld SOURCE=CONSENSUS", delta); } router_dir_info_changed(); result = 0; done: if (free_consensus) networkstatus_vote_free(c); tor_free(consensus_fname); tor_free(unverified_fname); return result; } /** Called when we have gotten more certificates: see whether we can * now verify a pending consensus. * * If source_dir is non-NULL, it's the identity digest for a directory that * we've just successfully retrieved certificates from, so try it first to * fetch any missing certificates. */ void networkstatus_note_certs_arrived(const char *source_dir) { int i; for (i=0; iconsensus) continue; if (networkstatus_check_consensus_signature(waiting->consensus, 0)>=0) { char *waiting_body = waiting->body; if (!networkstatus_set_current_consensus( waiting_body, networkstatus_get_flavor_name(i), NSSET_WAS_WAITING_FOR_CERTS, source_dir)) { tor_free(waiting_body); } } } } /** If the network-status list has changed since the last time we called this * function, update the status of every routerinfo from the network-status * list. If dir_version is 2, it's a v2 networkstatus that changed. * If dir_version is 3, it's a v3 consensus that changed. */ void routers_update_all_from_networkstatus(time_t now, int dir_version) { routerlist_t *rl = router_get_routerlist(); networkstatus_t *consensus = networkstatus_get_reasonably_live_consensus(now, FLAV_NS); if (!consensus || dir_version < 3) /* nothing more we should do */ return; /* calls router_dir_info_changed() when it's done -- more routers * might be up or down now, which might affect whether there's enough * directory info. */ routers_update_status_from_consensus_networkstatus(rl->routers, 0); SMARTLIST_FOREACH(rl->routers, routerinfo_t *, ri, ri->cache_info.routerlist_index = ri_sl_idx); if (rl->old_routers) signed_descs_update_status_from_consensus_networkstatus(rl->old_routers); if (!have_warned_about_old_version) { int is_server = server_mode(get_options()); version_status_t status; const char *recommended = is_server ? consensus->server_versions : consensus->client_versions; status = tor_version_is_obsolete(VERSION, recommended); if (status == VS_RECOMMENDED) { log_info(LD_GENERAL, "The directory authorities say my version is ok."); } else if (status == VS_EMPTY) { log_info(LD_GENERAL, "The directory authorities don't recommend any versions."); } else if (status == VS_NEW || status == VS_NEW_IN_SERIES) { if (!have_warned_about_new_version) { log_notice(LD_GENERAL, "This version of Tor (%s) is newer than any " "recommended version%s, according to the directory " "authorities. Recommended versions are: %s", VERSION, status == VS_NEW_IN_SERIES ? " in its series" : "", recommended); have_warned_about_new_version = 1; control_event_general_status(LOG_WARN, "DANGEROUS_VERSION " "CURRENT=%s REASON=%s RECOMMENDED=\"%s\"", VERSION, "NEW", recommended); } } else { log_warn(LD_GENERAL, "Please upgrade! " "This version of Tor (%s) is %s, according to the directory " "authorities. Recommended versions are: %s", VERSION, status == VS_OLD ? "obsolete" : "not recommended", recommended); have_warned_about_old_version = 1; control_event_general_status(LOG_WARN, "DANGEROUS_VERSION " "CURRENT=%s REASON=%s RECOMMENDED=\"%s\"", VERSION, status == VS_OLD ? "OBSOLETE" : "UNRECOMMENDED", recommended); } } } /** Update our view of the list of named servers from the most recently * retrieved networkstatus consensus. */ static void routerstatus_list_update_named_server_map(void) { networkstatus_t *ns = networkstatus_get_latest_consensus(); if (!ns) return; strmap_free(named_server_map, tor_free_); named_server_map = strmap_new(); strmap_free(unnamed_server_map, NULL); unnamed_server_map = strmap_new(); smartlist_t *rslist = ns->routerstatus_list; SMARTLIST_FOREACH_BEGIN(rslist, const routerstatus_t *, rs) { if (rs->is_named) { strmap_set_lc(named_server_map, rs->nickname, tor_memdup(rs->identity_digest, DIGEST_LEN)); } if (rs->is_unnamed) { strmap_set_lc(unnamed_server_map, rs->nickname, (void*)1); } } SMARTLIST_FOREACH_END(rs); } /** Given a list routers of routerinfo_t *, update each status field * according to our current consensus networkstatus. May re-order * routers. */ void routers_update_status_from_consensus_networkstatus(smartlist_t *routers, int reset_failures) { const or_options_t *options = get_options(); int authdir = authdir_mode_v3(options); networkstatus_t *ns = networkstatus_get_latest_consensus(); if (!ns || !smartlist_len(ns->routerstatus_list)) return; routers_sort_by_identity(routers); SMARTLIST_FOREACH_JOIN(ns->routerstatus_list, routerstatus_t *, rs, routers, routerinfo_t *, router, tor_memcmp(rs->identity_digest, router->cache_info.identity_digest, DIGEST_LEN), { }) { /* Is it the same descriptor, or only the same identity? */ if (tor_memeq(router->cache_info.signed_descriptor_digest, rs->descriptor_digest, DIGEST_LEN)) { if (ns->valid_until > router->cache_info.last_listed_as_valid_until) router->cache_info.last_listed_as_valid_until = ns->valid_until; } if (authdir) { /* If we _are_ an authority, we should check whether this router * is one that will cause us to need a reachability test. */ routerinfo_t *old_router = router_get_mutable_by_digest(router->cache_info.identity_digest); if (old_router != router) { router->needs_retest_if_added = dirserv_should_launch_reachability_test(router, old_router); } } if (reset_failures) { download_status_reset(&rs->dl_status); } } SMARTLIST_FOREACH_JOIN_END(rs, router); router_dir_info_changed(); } /** Given a list of signed_descriptor_t, update their fields (mainly, when * they were last listed) from the most recent consensus. */ void signed_descs_update_status_from_consensus_networkstatus(smartlist_t *descs) { networkstatus_t *ns = current_ns_consensus; if (!ns) return; if (!ns->desc_digest_map) { char dummy[DIGEST_LEN]; /* instantiates the digest map. */ memset(dummy, 0, sizeof(dummy)); router_get_consensus_status_by_descriptor_digest(ns, dummy); } SMARTLIST_FOREACH(descs, signed_descriptor_t *, d, { const routerstatus_t *rs = digestmap_get(ns->desc_digest_map, d->signed_descriptor_digest); if (rs) { if (ns->valid_until > d->last_listed_as_valid_until) d->last_listed_as_valid_until = ns->valid_until; } }); } /** Generate networkstatus lines for a single routerstatus_t object, and * return the result in a newly allocated string. Used only by controller * interface (for now.) */ char * networkstatus_getinfo_helper_single(const routerstatus_t *rs) { return routerstatus_format_entry(rs, NULL, NULL, NS_CONTROL_PORT, NULL); } /** Alloc and return a string describing routerstatuses for the most * recent info of each router we know about that is of purpose * purpose_string. Return NULL if unrecognized purpose. * * Right now this function is oriented toward listing bridges (you * shouldn't use this for general-purpose routers, since those * should be listed from the consensus, not from the routers list). */ char * networkstatus_getinfo_by_purpose(const char *purpose_string, time_t now) { time_t cutoff = now - ROUTER_MAX_AGE_TO_PUBLISH; char *answer; routerlist_t *rl = router_get_routerlist(); smartlist_t *statuses; uint8_t purpose = router_purpose_from_string(purpose_string); routerstatus_t rs; int bridge_auth = authdir_mode_bridge(get_options()); if (purpose == ROUTER_PURPOSE_UNKNOWN) { log_info(LD_DIR, "Unrecognized purpose '%s' when listing router statuses.", purpose_string); return NULL; } statuses = smartlist_new(); SMARTLIST_FOREACH_BEGIN(rl->routers, routerinfo_t *, ri) { node_t *node = node_get_mutable_by_id(ri->cache_info.identity_digest); if (!node) continue; if (ri->cache_info.published_on < cutoff) continue; if (ri->purpose != purpose) continue; if (bridge_auth && ri->purpose == ROUTER_PURPOSE_BRIDGE) dirserv_set_router_is_running(ri, now); /* then generate and write out status lines for each of them */ set_routerstatus_from_routerinfo(&rs, node, ri, now, 0); smartlist_add(statuses, networkstatus_getinfo_helper_single(&rs)); } SMARTLIST_FOREACH_END(ri); answer = smartlist_join_strings(statuses, "", 0, NULL); SMARTLIST_FOREACH(statuses, char *, cp, tor_free(cp)); smartlist_free(statuses); return answer; } /** Write out router status entries for all our bridge descriptors. */ void networkstatus_dump_bridge_status_to_file(time_t now) { char *status = networkstatus_getinfo_by_purpose("bridge", now); const or_options_t *options = get_options(); char *fname = NULL; char *thresholds = NULL; char *published_thresholds_and_status = NULL; char published[ISO_TIME_LEN+1]; format_iso_time(published, now); dirserv_compute_bridge_flag_thresholds(); thresholds = dirserv_get_flag_thresholds_line(); tor_asprintf(&published_thresholds_and_status, "published %s\nflag-thresholds %s\n%s", published, thresholds, status); tor_asprintf(&fname, "%s"PATH_SEPARATOR"networkstatus-bridges", options->DataDirectory); write_str_to_file(fname,published_thresholds_and_status,0); tor_free(thresholds); tor_free(published_thresholds_and_status); tor_free(fname); tor_free(status); } /* DOCDOC get_net_param_from_list */ static int32_t get_net_param_from_list(smartlist_t *net_params, const char *param_name, int32_t default_val, int32_t min_val, int32_t max_val) { int32_t res = default_val; size_t name_len = strlen(param_name); tor_assert(max_val > min_val); tor_assert(min_val <= default_val); tor_assert(max_val >= default_val); SMARTLIST_FOREACH_BEGIN(net_params, const char *, p) { if (!strcmpstart(p, param_name) && p[name_len] == '=') { int ok=0; long v = tor_parse_long(p+name_len+1, 10, INT32_MIN, INT32_MAX, &ok, NULL); if (ok) { res = (int32_t) v; break; } } } SMARTLIST_FOREACH_END(p); if (res < min_val) { log_warn(LD_DIR, "Consensus parameter %s is too small. Got %d, raising to " "%d.", param_name, res, min_val); res = min_val; } else if (res > max_val) { log_warn(LD_DIR, "Consensus parameter %s is too large. Got %d, capping to " "%d.", param_name, res, max_val); res = max_val; } return res; } /** Return the value of a integer parameter from the networkstatus ns * whose name is param_name. If ns is NULL, try loading the * latest consensus ourselves. Return default_val if no latest * consensus, or if it has no parameter called param_name. * Make sure the value parsed from the consensus is at least * min_val and at most max_val and raise/cap the parsed value * if necessary. */ int32_t networkstatus_get_param(const networkstatus_t *ns, const char *param_name, int32_t default_val, int32_t min_val, int32_t max_val) { if (!ns) /* if they pass in null, go find it ourselves */ ns = networkstatus_get_latest_consensus(); if (!ns || !ns->net_params) return default_val; return get_net_param_from_list(ns->net_params, param_name, default_val, min_val, max_val); } /** * Retrieve the consensus parameter that governs the * fixed-point precision of our network balancing 'bandwidth-weights' * (which are themselves integer consensus values). We divide them * by this value and ensure they never exceed this value. */ int networkstatus_get_weight_scale_param(networkstatus_t *ns) { return networkstatus_get_param(ns, "bwweightscale", BW_WEIGHT_SCALE, BW_MIN_WEIGHT_SCALE, BW_MAX_WEIGHT_SCALE); } /** Return the value of a integer bw weight parameter from the networkstatus * ns whose name is weight_name. If ns is NULL, try * loading the latest consensus ourselves. Return default_val if no * latest consensus, or if it has no parameter called weight_name. */ int32_t networkstatus_get_bw_weight(networkstatus_t *ns, const char *weight_name, int32_t default_val) { int32_t param; int max; if (!ns) /* if they pass in null, go find it ourselves */ ns = networkstatus_get_latest_consensus(); if (!ns || !ns->weight_params) return default_val; max = networkstatus_get_weight_scale_param(ns); param = get_net_param_from_list(ns->weight_params, weight_name, default_val, -1, BW_MAX_WEIGHT_SCALE); if (param > max) { log_warn(LD_DIR, "Value of consensus weight %s was too large, capping " "to %d", weight_name, max); param = max; } return param; } /** Return the name of the consensus flavor flav as used to identify * the flavor in directory documents. */ const char * networkstatus_get_flavor_name(consensus_flavor_t flav) { switch (flav) { case FLAV_NS: return "ns"; case FLAV_MICRODESC: return "microdesc"; default: tor_fragile_assert(); return "??"; } } /** Return the consensus_flavor_t value for the flavor called flavname, * or -1 if the flavor is not recognized. */ int networkstatus_parse_flavor_name(const char *flavname) { if (!strcmp(flavname, "ns")) return FLAV_NS; else if (!strcmp(flavname, "microdesc")) return FLAV_MICRODESC; else return -1; } /** Return 0 if this routerstatus is obsolete, too new, isn't * running, or otherwise not a descriptor that we would make any * use of even if we had it. Else return 1. */ int client_would_use_router(const routerstatus_t *rs, time_t now, const or_options_t *options) { if (!rs->is_flagged_running && !options->FetchUselessDescriptors) { /* If we had this router descriptor, we wouldn't even bother using it. * But, if we want to have a complete list, fetch it anyway. */ return 0; } if (rs->published_on + options->TestingEstimatedDescriptorPropagationTime > now) { /* Most caches probably don't have this descriptor yet. */ return 0; } if (rs->published_on + OLD_ROUTER_DESC_MAX_AGE < now) { /* We'd drop it immediately for being too old. */ return 0; } if (!routerstatus_version_supports_extend2_cells(rs, 1)) { /* We'd ignore it because it doesn't support EXTEND2 cells. * If we don't know the version, download the descriptor so we can * check if it supports EXTEND2 cells and ntor. */ return 0; } return 1; } /** If question is a string beginning with "ns/" in a format the * control interface expects for a GETINFO question, set *answer to a * newly-allocated string containing networkstatus lines for the appropriate * ORs. Return 0 on success, -1 on unrecognized question format. */ int getinfo_helper_networkstatus(control_connection_t *conn, const char *question, char **answer, const char **errmsg) { const routerstatus_t *status; (void) conn; if (!networkstatus_get_latest_consensus()) { *answer = tor_strdup(""); return 0; } if (!strcmp(question, "ns/all")) { smartlist_t *statuses = smartlist_new(); SMARTLIST_FOREACH(networkstatus_get_latest_consensus()->routerstatus_list, const routerstatus_t *, rs, { smartlist_add(statuses, networkstatus_getinfo_helper_single(rs)); }); *answer = smartlist_join_strings(statuses, "", 0, NULL); SMARTLIST_FOREACH(statuses, char *, cp, tor_free(cp)); smartlist_free(statuses); return 0; } else if (!strcmpstart(question, "ns/id/")) { char d[DIGEST_LEN]; const char *q = question + 6; if (*q == '$') ++q; if (base16_decode(d, DIGEST_LEN, q, strlen(q)) != DIGEST_LEN) { *errmsg = "Data not decodeable as hex"; return -1; } status = router_get_consensus_status_by_id(d); } else if (!strcmpstart(question, "ns/name/")) { status = router_get_consensus_status_by_nickname(question+8, 0); } else if (!strcmpstart(question, "ns/purpose/")) { *answer = networkstatus_getinfo_by_purpose(question+11, time(NULL)); return *answer ? 0 : -1; } else if (!strcmp(question, "consensus/packages")) { const networkstatus_t *ns = networkstatus_get_latest_consensus(); if (ns && ns->package_lines) *answer = smartlist_join_strings(ns->package_lines, "\n", 0, NULL); else *errmsg = "No consensus available"; return *answer ? 0 : -1; } else if (!strcmp(question, "consensus/valid-after") || !strcmp(question, "consensus/fresh-until") || !strcmp(question, "consensus/valid-until")) { const networkstatus_t *ns = networkstatus_get_latest_consensus(); if (ns) { time_t t; if (!strcmp(question, "consensus/valid-after")) t = ns->valid_after; else if (!strcmp(question, "consensus/fresh-until")) t = ns->fresh_until; else t = ns->valid_until; char tbuf[ISO_TIME_LEN+1]; format_iso_time(tbuf, t); *answer = tor_strdup(tbuf); } else { *errmsg = "No consensus available"; } return *answer ? 0 : -1; } else { return 0; } if (status) *answer = networkstatus_getinfo_helper_single(status); return 0; } /** Check whether the networkstatus ns lists any protocol * versions as "required" or "recommended" that we do not support. If * so, set *warning_out to a newly allocated string describing * the problem. * * Return 1 if we should exit, 0 if we should not. */ int networkstatus_check_required_protocols(const networkstatus_t *ns, int client_mode, char **warning_out) { const char *func = client_mode ? "client" : "relay"; const char *required, *recommended; char *missing = NULL; tor_assert(warning_out); if (client_mode) { required = ns->required_client_protocols; recommended = ns->recommended_client_protocols; } else { required = ns->required_relay_protocols; recommended = ns->recommended_relay_protocols; } if (!protover_all_supported(required, &missing)) { tor_asprintf(warning_out, "At least one protocol listed as required in " "the consensus is not supported by this version of Tor. " "You should upgrade. This version of Tor will not work as a " "%s on the Tor network. The missing protocols are: %s", func, missing); tor_free(missing); return 1; } if (! protover_all_supported(recommended, &missing)) { tor_asprintf(warning_out, "At least one protocol listed as recommended in " "the consensus is not supported by this version of Tor. " "You should upgrade. This version of Tor will eventually " "stop working as a %s on the Tor network. The missing " "protocols are: %s", func, missing); tor_free(missing); } tor_assert_nonfatal(missing == NULL); return 0; } /** Free all storage held locally in this module. */ void networkstatus_free_all(void) { int i; networkstatus_vote_free(current_ns_consensus); networkstatus_vote_free(current_md_consensus); current_md_consensus = current_ns_consensus = NULL; for (i=0; i < N_CONSENSUS_FLAVORS; ++i) { consensus_waiting_for_certs_t *waiting = &consensus_waiting_for_certs[i]; if (waiting->consensus) { networkstatus_vote_free(waiting->consensus); waiting->consensus = NULL; } tor_free(waiting->body); } strmap_free(named_server_map, tor_free_); strmap_free(unnamed_server_map, NULL); } tor-0.2.9.10/src/or/fp_pair.h0000644000175000017500000000331413002150440012454 00000000000000/* Copyright (c) 2013-2016, The Tor Project, Inc. */ /* See LICENSE for licensing information */ /** * \file fp_pair.h * \brief Header file for fp_pair.c. **/ #ifndef _TOR_FP_PAIR_H #define _TOR_FP_PAIR_H /* * Declare fp_pair_map_t functions and structs */ typedef struct fp_pair_map_entry_s fp_pair_map_entry_t; typedef struct fp_pair_map_s fp_pair_map_t; typedef fp_pair_map_entry_t *fp_pair_map_iter_t; fp_pair_map_t * fp_pair_map_new(void); void * fp_pair_map_set(fp_pair_map_t *map, const fp_pair_t *key, void *val); void * fp_pair_map_set_by_digests(fp_pair_map_t *map, const char *first, const char *second, void *val); void * fp_pair_map_get(const fp_pair_map_t *map, const fp_pair_t *key); void * fp_pair_map_get_by_digests(const fp_pair_map_t *map, const char *first, const char *second); void * fp_pair_map_remove(fp_pair_map_t *map, const fp_pair_t *key); void fp_pair_map_free(fp_pair_map_t *map, void (*free_val)(void*)); int fp_pair_map_isempty(const fp_pair_map_t *map); int fp_pair_map_size(const fp_pair_map_t *map); fp_pair_map_iter_t * fp_pair_map_iter_init(fp_pair_map_t *map); fp_pair_map_iter_t * fp_pair_map_iter_next(fp_pair_map_t *map, fp_pair_map_iter_t *iter); fp_pair_map_iter_t * fp_pair_map_iter_next_rmv(fp_pair_map_t *map, fp_pair_map_iter_t *iter); void fp_pair_map_iter_get(fp_pair_map_iter_t *iter, fp_pair_t *key_out, void **val_out); int fp_pair_map_iter_done(fp_pair_map_iter_t *iter); void fp_pair_map_assert_ok(const fp_pair_map_t *map); #undef DECLARE_MAP_FNS #endif tor-0.2.9.10/src/or/onion.c0000644000175000017500000012115513051624457012177 00000000000000/* Copyright (c) 2001 Matej Pfajfar. * Copyright (c) 2001-2004, Roger Dingledine. * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson. * Copyright (c) 2007-2016, The Tor Project, Inc. */ /* See LICENSE for licensing information */ /** * \file onion.c * \brief Functions to queue create cells, wrap the various onionskin types, * and parse and create the CREATE cell and its allies. * * This module has a few functions, all related to the CREATE/CREATED * handshake that we use on links in order to create a circuit, and the * related EXTEND/EXTENDED handshake that we use over circuits in order to * extend them an additional hop. * * In this module, we provide a set of abstractions to create a uniform * interface over the three circuit extension handshakes that Tor has used * over the years (TAP, CREATE_FAST, and ntor). These handshakes are * implemented in onion_tap.c, onion_fast.c, and onion_ntor.c respectively. * * All[*] of these handshakes follow a similar pattern: a client, knowing * some key from the relay it wants to extend through, generates the * first part of a handshake. A relay receives that handshake, and sends * a reply. Once the client handles the reply, it knows that it is * talking to the right relay, and it shares some freshly negotiated key * material with that relay. * * We sometimes call the client's part of the handshake an "onionskin". * We do this because historically, Onion Routing used a multi-layer * structure called an "onion" to construct circuits. Each layer of the * onion contained key material chosen by the client, the identity of * the next relay in the circuit, and a smaller onion, encrypted with * the key of the next relay. When we changed Tor to use a telescoping * circuit extension design, it corresponded to sending each layer of the * onion separately -- as a series of onionskins. * * Clients invoke these functions when creating or extending a circuit, * from circuitbuild.c. * * Relays invoke these functions when they receive a CREATE or EXTEND * cell in command.c or relay.c, in order to queue the pending request. * They also invoke them from cpuworker.c, which handles dispatching * onionskin requests to different worker threads. * *
* * This module also handles: *
    *
  • Queueing incoming onionskins on the relay side before passing * them to worker threads. *
  • Expiring onionskins on the relay side if they have waited for * too long. *
  • Packaging private keys on the server side in order to pass * them to worker threads. *
  • Encoding and decoding CREATE, CREATED, CREATE2, and CREATED2 cells. *
  • Encoding and decodign EXTEND, EXTENDED, EXTEND2, and EXTENDED2 * relay cells. *
* * [*] The CREATE_FAST handshake is weaker than described here; see * onion_fast.c for more information. **/ #include "or.h" #include "circuitbuild.h" #include "circuitlist.h" #include "config.h" #include "cpuworker.h" #include "networkstatus.h" #include "onion.h" #include "onion_fast.h" #include "onion_ntor.h" #include "onion_tap.h" #include "relay.h" #include "rephist.h" #include "router.h" /** Type for a linked list of circuits that are waiting for a free CPU worker * to process a waiting onion handshake. */ typedef struct onion_queue_t { TOR_TAILQ_ENTRY(onion_queue_t) next; or_circuit_t *circ; uint16_t handshake_type; create_cell_t *onionskin; time_t when_added; } onion_queue_t; /** 5 seconds on the onion queue til we just send back a destroy */ #define ONIONQUEUE_WAIT_CUTOFF 5 /** Array of queues of circuits waiting for CPU workers. An element is NULL * if that queue is empty.*/ static TOR_TAILQ_HEAD(onion_queue_head_t, onion_queue_t) ol_list[MAX_ONION_HANDSHAKE_TYPE+1] = { TOR_TAILQ_HEAD_INITIALIZER(ol_list[0]), /* tap */ TOR_TAILQ_HEAD_INITIALIZER(ol_list[1]), /* fast */ TOR_TAILQ_HEAD_INITIALIZER(ol_list[2]), /* ntor */ }; /** Number of entries of each type currently in each element of ol_list[]. */ static int ol_entries[MAX_ONION_HANDSHAKE_TYPE+1]; static int num_ntors_per_tap(void); static void onion_queue_entry_remove(onion_queue_t *victim); /* XXXX Check lengths vs MAX_ONIONSKIN_{CHALLENGE,REPLY}_LEN. * * (By which I think I meant, "make sure that no * X_ONIONSKIN_CHALLENGE/REPLY_LEN is greater than * MAX_ONIONSKIN_CHALLENGE/REPLY_LEN." Also, make sure that we can pass * over-large values via EXTEND2/EXTENDED2, for future-compatibility.*/ /** Return true iff we have room to queue another onionskin of type * type. */ static int have_room_for_onionskin(uint16_t type) { const or_options_t *options = get_options(); int num_cpus; uint64_t tap_usec, ntor_usec; uint64_t ntor_during_tap_usec, tap_during_ntor_usec; /* If we've got fewer than 50 entries, we always have room for one more. */ if (ol_entries[type] < 50) return 1; num_cpus = get_num_cpus(options); /* Compute how many microseconds we'd expect to need to clear all * onionskins in various combinations of the queues. */ /* How long would it take to process all the TAP cells in the queue? */ tap_usec = estimated_usec_for_onionskins( ol_entries[ONION_HANDSHAKE_TYPE_TAP], ONION_HANDSHAKE_TYPE_TAP) / num_cpus; /* How long would it take to process all the NTor cells in the queue? */ ntor_usec = estimated_usec_for_onionskins( ol_entries[ONION_HANDSHAKE_TYPE_NTOR], ONION_HANDSHAKE_TYPE_NTOR) / num_cpus; /* How long would it take to process the tap cells that we expect to * process while draining the ntor queue? */ tap_during_ntor_usec = estimated_usec_for_onionskins( MIN(ol_entries[ONION_HANDSHAKE_TYPE_TAP], ol_entries[ONION_HANDSHAKE_TYPE_NTOR] / num_ntors_per_tap()), ONION_HANDSHAKE_TYPE_TAP) / num_cpus; /* How long would it take to process the ntor cells that we expect to * process while draining the tap queue? */ ntor_during_tap_usec = estimated_usec_for_onionskins( MIN(ol_entries[ONION_HANDSHAKE_TYPE_NTOR], ol_entries[ONION_HANDSHAKE_TYPE_TAP] * num_ntors_per_tap()), ONION_HANDSHAKE_TYPE_NTOR) / num_cpus; /* See whether that exceeds MaxOnionQueueDelay. If so, we can't queue * this. */ if (type == ONION_HANDSHAKE_TYPE_NTOR && (ntor_usec + tap_during_ntor_usec) / 1000 > (uint64_t)options->MaxOnionQueueDelay) return 0; if (type == ONION_HANDSHAKE_TYPE_TAP && (tap_usec + ntor_during_tap_usec) / 1000 > (uint64_t)options->MaxOnionQueueDelay) return 0; /* If we support the ntor handshake, then don't let TAP handshakes use * more than 2/3 of the space on the queue. */ if (type == ONION_HANDSHAKE_TYPE_TAP && tap_usec / 1000 > (uint64_t)options->MaxOnionQueueDelay * 2 / 3) return 0; return 1; } /** Add circ to the end of ol_list and return 0, except * if ol_list is too long, in which case do nothing and return -1. */ int onion_pending_add(or_circuit_t *circ, create_cell_t *onionskin) { onion_queue_t *tmp; time_t now = time(NULL); if (onionskin->handshake_type > MAX_ONION_HANDSHAKE_TYPE) { /* LCOV_EXCL_START * We should have rejected this far before this point */ log_warn(LD_BUG, "Handshake %d out of range! Dropping.", onionskin->handshake_type); return -1; /* LCOV_EXCL_STOP */ } tmp = tor_malloc_zero(sizeof(onion_queue_t)); tmp->circ = circ; tmp->handshake_type = onionskin->handshake_type; tmp->onionskin = onionskin; tmp->when_added = now; if (!have_room_for_onionskin(onionskin->handshake_type)) { #define WARN_TOO_MANY_CIRC_CREATIONS_INTERVAL (60) static ratelim_t last_warned = RATELIM_INIT(WARN_TOO_MANY_CIRC_CREATIONS_INTERVAL); char *m; if (onionskin->handshake_type == ONION_HANDSHAKE_TYPE_NTOR && (m = rate_limit_log(&last_warned, approx_time()))) { log_warn(LD_GENERAL, "Your computer is too slow to handle this many circuit " "creation requests! Please consider using the " "MaxAdvertisedBandwidth config option or choosing a more " "restricted exit policy.%s",m); tor_free(m); } tor_free(tmp); return -1; } ++ol_entries[onionskin->handshake_type]; log_info(LD_OR, "New create (%s). Queues now ntor=%d and tap=%d.", onionskin->handshake_type == ONION_HANDSHAKE_TYPE_NTOR ? "ntor" : "tap", ol_entries[ONION_HANDSHAKE_TYPE_NTOR], ol_entries[ONION_HANDSHAKE_TYPE_TAP]); circ->onionqueue_entry = tmp; TOR_TAILQ_INSERT_TAIL(&ol_list[onionskin->handshake_type], tmp, next); /* cull elderly requests. */ while (1) { onion_queue_t *head = TOR_TAILQ_FIRST(&ol_list[onionskin->handshake_type]); if (now - head->when_added < (time_t)ONIONQUEUE_WAIT_CUTOFF) break; circ = head->circ; circ->onionqueue_entry = NULL; onion_queue_entry_remove(head); log_info(LD_CIRC, "Circuit create request is too old; canceling due to overload."); circuit_mark_for_close(TO_CIRCUIT(circ), END_CIRC_REASON_RESOURCELIMIT); } return 0; } /** Return a fairness parameter, to prefer processing NTOR style * handshakes but still slowly drain the TAP queue so we don't starve * it entirely. */ static int num_ntors_per_tap(void) { #define DEFAULT_NUM_NTORS_PER_TAP 10 #define MIN_NUM_NTORS_PER_TAP 1 #define MAX_NUM_NTORS_PER_TAP 100000 return networkstatus_get_param(NULL, "NumNTorsPerTAP", DEFAULT_NUM_NTORS_PER_TAP, MIN_NUM_NTORS_PER_TAP, MAX_NUM_NTORS_PER_TAP); } /** Choose which onion queue we'll pull from next. If one is empty choose * the other; if they both have elements, load balance across them but * favoring NTOR. */ static uint16_t decide_next_handshake_type(void) { /* The number of times we've chosen ntor lately when both were available. */ static int recently_chosen_ntors = 0; if (!ol_entries[ONION_HANDSHAKE_TYPE_NTOR]) return ONION_HANDSHAKE_TYPE_TAP; /* no ntors? try tap */ if (!ol_entries[ONION_HANDSHAKE_TYPE_TAP]) { /* Nick wants us to prioritize new tap requests when there aren't * any in the queue and we've processed k ntor cells since the last * tap cell. This strategy is maybe a good idea, since it starves tap * less in the case where tap is rare, or maybe a poor idea, since it * makes the new tap cell unfairly jump in front of ntor cells that * got here first. In any case this edge case will only become relevant * once tap is rare. We should reevaluate whether we like this decision * once tap gets more rare. */ if (ol_entries[ONION_HANDSHAKE_TYPE_NTOR] && recently_chosen_ntors <= num_ntors_per_tap()) ++recently_chosen_ntors; return ONION_HANDSHAKE_TYPE_NTOR; /* no taps? try ntor */ } /* They both have something queued. Pick ntor if we haven't done that * too much lately. */ if (++recently_chosen_ntors <= num_ntors_per_tap()) { return ONION_HANDSHAKE_TYPE_NTOR; } /* Else, it's time to let tap have its turn. */ recently_chosen_ntors = 0; return ONION_HANDSHAKE_TYPE_TAP; } /** Remove the highest priority item from ol_list[] and return it, or * return NULL if the lists are empty. */ or_circuit_t * onion_next_task(create_cell_t **onionskin_out) { or_circuit_t *circ; uint16_t handshake_to_choose = decide_next_handshake_type(); onion_queue_t *head = TOR_TAILQ_FIRST(&ol_list[handshake_to_choose]); if (!head) return NULL; /* no onions pending, we're done */ tor_assert(head->circ); tor_assert(head->handshake_type <= MAX_ONION_HANDSHAKE_TYPE); // tor_assert(head->circ->p_chan); /* make sure it's still valid */ /* XXX I only commented out the above line to make the unit tests * more manageable. That's probably not good long-term. -RD */ circ = head->circ; if (head->onionskin) --ol_entries[head->handshake_type]; log_info(LD_OR, "Processing create (%s). Queues now ntor=%d and tap=%d.", head->handshake_type == ONION_HANDSHAKE_TYPE_NTOR ? "ntor" : "tap", ol_entries[ONION_HANDSHAKE_TYPE_NTOR], ol_entries[ONION_HANDSHAKE_TYPE_TAP]); *onionskin_out = head->onionskin; head->onionskin = NULL; /* prevent free. */ circ->onionqueue_entry = NULL; onion_queue_entry_remove(head); return circ; } /** Return the number of handshake_type-style create requests pending. */ int onion_num_pending(uint16_t handshake_type) { return ol_entries[handshake_type]; } /** Go through ol_list, find the onion_queue_t element which points to * circ, remove and free that element. Leave circ itself alone. */ void onion_pending_remove(or_circuit_t *circ) { onion_queue_t *victim; if (!circ) return; victim = circ->onionqueue_entry; if (victim) onion_queue_entry_remove(victim); cpuworker_cancel_circ_handshake(circ); } /** Remove a queue entry victim from the queue, unlinking it from * its circuit and freeing it and any structures it owns.*/ static void onion_queue_entry_remove(onion_queue_t *victim) { if (victim->handshake_type > MAX_ONION_HANDSHAKE_TYPE) { /* LCOV_EXCL_START * We should have rejected this far before this point */ log_warn(LD_BUG, "Handshake %d out of range! Dropping.", victim->handshake_type); /* XXX leaks */ return; /* LCOV_EXCL_STOP */ } TOR_TAILQ_REMOVE(&ol_list[victim->handshake_type], victim, next); if (victim->circ) victim->circ->onionqueue_entry = NULL; if (victim->onionskin) --ol_entries[victim->handshake_type]; tor_free(victim->onionskin); tor_free(victim); } /** Remove all circuits from the pending list. Called from tor_free_all. */ void clear_pending_onions(void) { onion_queue_t *victim, *next; int i; for (i=0; i<=MAX_ONION_HANDSHAKE_TYPE; i++) { for (victim = TOR_TAILQ_FIRST(&ol_list[i]); victim; victim = next) { next = TOR_TAILQ_NEXT(victim,next); onion_queue_entry_remove(victim); } tor_assert(TOR_TAILQ_EMPTY(&ol_list[i])); } memset(ol_entries, 0, sizeof(ol_entries)); } /* ============================================================ */ /** Return a new server_onion_keys_t object with all of the keys * and other info we might need to do onion handshakes. (We make a copy of * our keys for each cpuworker to avoid race conditions with the main thread, * and to avoid locking) */ server_onion_keys_t * server_onion_keys_new(void) { server_onion_keys_t *keys = tor_malloc_zero(sizeof(server_onion_keys_t)); memcpy(keys->my_identity, router_get_my_id_digest(), DIGEST_LEN); dup_onion_keys(&keys->onion_key, &keys->last_onion_key); keys->curve25519_key_map = construct_ntor_key_map(); keys->junk_keypair = tor_malloc_zero(sizeof(curve25519_keypair_t)); curve25519_keypair_generate(keys->junk_keypair, 0); return keys; } /** Release all storage held in keys. */ void server_onion_keys_free(server_onion_keys_t *keys) { if (! keys) return; crypto_pk_free(keys->onion_key); crypto_pk_free(keys->last_onion_key); ntor_key_map_free(keys->curve25519_key_map); tor_free(keys->junk_keypair); memwipe(keys, 0, sizeof(server_onion_keys_t)); tor_free(keys); } /** Release whatever storage is held in state, depending on its * type, and clear its pointer. */ void onion_handshake_state_release(onion_handshake_state_t *state) { switch (state->tag) { case ONION_HANDSHAKE_TYPE_TAP: crypto_dh_free(state->u.tap); state->u.tap = NULL; break; case ONION_HANDSHAKE_TYPE_FAST: fast_handshake_state_free(state->u.fast); state->u.fast = NULL; break; case ONION_HANDSHAKE_TYPE_NTOR: ntor_handshake_state_free(state->u.ntor); state->u.ntor = NULL; break; default: /* LCOV_EXCL_START * This state should not even exist. */ log_warn(LD_BUG, "called with unknown handshake state type %d", (int)state->tag); tor_fragile_assert(); /* LCOV_EXCL_STOP */ } } /** Perform the first step of a circuit-creation handshake of type type * (one of ONION_HANDSHAKE_TYPE_*): generate the initial "onion skin" in * onion_skin_out, and store any state information in state_out. * Return -1 on failure, and the length of the onionskin on acceptance. */ int onion_skin_create(int type, const extend_info_t *node, onion_handshake_state_t *state_out, uint8_t *onion_skin_out) { int r = -1; switch (type) { case ONION_HANDSHAKE_TYPE_TAP: if (!node->onion_key) return -1; if (onion_skin_TAP_create(node->onion_key, &state_out->u.tap, (char*)onion_skin_out) < 0) return -1; r = TAP_ONIONSKIN_CHALLENGE_LEN; break; case ONION_HANDSHAKE_TYPE_FAST: if (fast_onionskin_create(&state_out->u.fast, onion_skin_out) < 0) return -1; r = CREATE_FAST_LEN; break; case ONION_HANDSHAKE_TYPE_NTOR: if (!extend_info_supports_ntor(node)) return -1; if (onion_skin_ntor_create((const uint8_t*)node->identity_digest, &node->curve25519_onion_key, &state_out->u.ntor, onion_skin_out) < 0) return -1; r = NTOR_ONIONSKIN_LEN; break; default: /* LCOV_EXCL_START * We should never try to create an impossible handshake type. */ log_warn(LD_BUG, "called with unknown handshake state type %d", type); tor_fragile_assert(); r = -1; /* LCOV_EXCL_STOP */ } if (r > 0) state_out->tag = (uint16_t) type; return r; } /** Perform the second (server-side) step of a circuit-creation handshake of * type type, responding to the client request in onion_skin * using the keys in keys. On success, write our response into * reply_out, generate keys_out_len bytes worth of key material * in keys_out_len, a hidden service nonce to rend_nonce_out, * and return the length of the reply. On failure, return -1. */ int onion_skin_server_handshake(int type, const uint8_t *onion_skin, size_t onionskin_len, const server_onion_keys_t *keys, uint8_t *reply_out, uint8_t *keys_out, size_t keys_out_len, uint8_t *rend_nonce_out) { int r = -1; switch (type) { case ONION_HANDSHAKE_TYPE_TAP: if (onionskin_len != TAP_ONIONSKIN_CHALLENGE_LEN) return -1; if (onion_skin_TAP_server_handshake((const char*)onion_skin, keys->onion_key, keys->last_onion_key, (char*)reply_out, (char*)keys_out, keys_out_len)<0) return -1; r = TAP_ONIONSKIN_REPLY_LEN; memcpy(rend_nonce_out, reply_out+DH_KEY_LEN, DIGEST_LEN); break; case ONION_HANDSHAKE_TYPE_FAST: if (onionskin_len != CREATE_FAST_LEN) return -1; if (fast_server_handshake(onion_skin, reply_out, keys_out, keys_out_len)<0) return -1; r = CREATED_FAST_LEN; memcpy(rend_nonce_out, reply_out+DIGEST_LEN, DIGEST_LEN); break; case ONION_HANDSHAKE_TYPE_NTOR: if (onionskin_len < NTOR_ONIONSKIN_LEN) return -1; { size_t keys_tmp_len = keys_out_len + DIGEST_LEN; uint8_t *keys_tmp = tor_malloc(keys_out_len + DIGEST_LEN); if (onion_skin_ntor_server_handshake( onion_skin, keys->curve25519_key_map, keys->junk_keypair, keys->my_identity, reply_out, keys_tmp, keys_tmp_len)<0) { tor_free(keys_tmp); return -1; } memcpy(keys_out, keys_tmp, keys_out_len); memcpy(rend_nonce_out, keys_tmp+keys_out_len, DIGEST_LEN); memwipe(keys_tmp, 0, keys_tmp_len); tor_free(keys_tmp); r = NTOR_REPLY_LEN; } break; default: /* LCOV_EXCL_START * We should have rejected this far before this point */ log_warn(LD_BUG, "called with unknown handshake state type %d", type); tor_fragile_assert(); return -1; /* LCOV_EXCL_STOP */ } return r; } /** Perform the final (client-side) step of a circuit-creation handshake of * type type, using our state in handshake_state and the * server's response in reply. On success, generate keys_out_len * bytes worth of key material in keys_out_len, set * rend_authenticator_out to the "KH" field that can be used to * establish introduction points at this hop, and return 0. On failure, * return -1, and set *msg_out to an error message if this is worth * complaining to the user about. */ int onion_skin_client_handshake(int type, const onion_handshake_state_t *handshake_state, const uint8_t *reply, size_t reply_len, uint8_t *keys_out, size_t keys_out_len, uint8_t *rend_authenticator_out, const char **msg_out) { if (handshake_state->tag != type) return -1; switch (type) { case ONION_HANDSHAKE_TYPE_TAP: if (reply_len != TAP_ONIONSKIN_REPLY_LEN) { if (msg_out) *msg_out = "TAP reply was not of the correct length."; return -1; } if (onion_skin_TAP_client_handshake(handshake_state->u.tap, (const char*)reply, (char *)keys_out, keys_out_len, msg_out) < 0) return -1; memcpy(rend_authenticator_out, reply+DH_KEY_LEN, DIGEST_LEN); return 0; case ONION_HANDSHAKE_TYPE_FAST: if (reply_len != CREATED_FAST_LEN) { if (msg_out) *msg_out = "TAP reply was not of the correct length."; return -1; } if (fast_client_handshake(handshake_state->u.fast, reply, keys_out, keys_out_len, msg_out) < 0) return -1; memcpy(rend_authenticator_out, reply+DIGEST_LEN, DIGEST_LEN); return 0; case ONION_HANDSHAKE_TYPE_NTOR: if (reply_len < NTOR_REPLY_LEN) { if (msg_out) *msg_out = "ntor reply was not of the correct length."; return -1; } { size_t keys_tmp_len = keys_out_len + DIGEST_LEN; uint8_t *keys_tmp = tor_malloc(keys_tmp_len); if (onion_skin_ntor_client_handshake(handshake_state->u.ntor, reply, keys_tmp, keys_tmp_len, msg_out) < 0) { tor_free(keys_tmp); return -1; } memcpy(keys_out, keys_tmp, keys_out_len); memcpy(rend_authenticator_out, keys_tmp + keys_out_len, DIGEST_LEN); memwipe(keys_tmp, 0, keys_tmp_len); tor_free(keys_tmp); } return 0; default: log_warn(LD_BUG, "called with unknown handshake state type %d", type); tor_fragile_assert(); return -1; } } /** Helper: return 0 if cell appears valid, -1 otherwise. If * unknown_ok is true, allow cells with handshake types we don't * recognize. */ static int check_create_cell(const create_cell_t *cell, int unknown_ok) { switch (cell->cell_type) { case CELL_CREATE: if (cell->handshake_type != ONION_HANDSHAKE_TYPE_TAP && cell->handshake_type != ONION_HANDSHAKE_TYPE_NTOR) return -1; break; case CELL_CREATE_FAST: if (cell->handshake_type != ONION_HANDSHAKE_TYPE_FAST) return -1; break; case CELL_CREATE2: break; default: return -1; } switch (cell->handshake_type) { case ONION_HANDSHAKE_TYPE_TAP: if (cell->handshake_len != TAP_ONIONSKIN_CHALLENGE_LEN) return -1; break; case ONION_HANDSHAKE_TYPE_FAST: if (cell->handshake_len != CREATE_FAST_LEN) return -1; break; case ONION_HANDSHAKE_TYPE_NTOR: if (cell->handshake_len != NTOR_ONIONSKIN_LEN) return -1; break; default: if (! unknown_ok) return -1; } return 0; } /** Write the various parameters into the create cell. Separate from * create_cell_parse() to make unit testing easier. */ void create_cell_init(create_cell_t *cell_out, uint8_t cell_type, uint16_t handshake_type, uint16_t handshake_len, const uint8_t *onionskin) { memset(cell_out, 0, sizeof(*cell_out)); cell_out->cell_type = cell_type; cell_out->handshake_type = handshake_type; cell_out->handshake_len = handshake_len; memcpy(cell_out->onionskin, onionskin, handshake_len); } /** Helper: parse the CREATE2 payload at p, which could be up to * p_len bytes long, and use it to fill the fields of * cell_out. Return 0 on success and -1 on failure. * * Note that part of the body of an EXTEND2 cell is a CREATE2 payload, so * this function is also used for parsing those. */ static int parse_create2_payload(create_cell_t *cell_out, const uint8_t *p, size_t p_len) { uint16_t handshake_type, handshake_len; if (p_len < 4) return -1; handshake_type = ntohs(get_uint16(p)); handshake_len = ntohs(get_uint16(p+2)); if (handshake_len > CELL_PAYLOAD_SIZE - 4 || handshake_len > p_len - 4) return -1; if (handshake_type == ONION_HANDSHAKE_TYPE_FAST) return -1; create_cell_init(cell_out, CELL_CREATE2, handshake_type, handshake_len, p+4); return 0; } /** Magic string which, in a CREATE or EXTEND cell, indicates that a seeming * TAP payload is really an ntor payload. We'd do away with this if every * relay supported EXTEND2, but we want to be able to extend from A to B with * ntor even when A doesn't understand EXTEND2 and so can't generate a * CREATE2 cell. **/ #define NTOR_CREATE_MAGIC "ntorNTORntorNTOR" /** Parse a CREATE, CREATE_FAST, or CREATE2 cell from cell_in into * cell_out. Return 0 on success, -1 on failure. (We reject some * syntactically valid CREATE2 cells that we can't generate or react to.) */ int create_cell_parse(create_cell_t *cell_out, const cell_t *cell_in) { switch (cell_in->command) { case CELL_CREATE: if (tor_memeq(cell_in->payload, NTOR_CREATE_MAGIC, 16)) { create_cell_init(cell_out, CELL_CREATE, ONION_HANDSHAKE_TYPE_NTOR, NTOR_ONIONSKIN_LEN, cell_in->payload+16); } else { create_cell_init(cell_out, CELL_CREATE, ONION_HANDSHAKE_TYPE_TAP, TAP_ONIONSKIN_CHALLENGE_LEN, cell_in->payload); } break; case CELL_CREATE_FAST: create_cell_init(cell_out, CELL_CREATE_FAST, ONION_HANDSHAKE_TYPE_FAST, CREATE_FAST_LEN, cell_in->payload); break; case CELL_CREATE2: if (parse_create2_payload(cell_out, cell_in->payload, CELL_PAYLOAD_SIZE) < 0) return -1; break; default: return -1; } return check_create_cell(cell_out, 0); } /** Helper: return 0 if cell appears valid, -1 otherwise. */ static int check_created_cell(const created_cell_t *cell) { switch (cell->cell_type) { case CELL_CREATED: if (cell->handshake_len != TAP_ONIONSKIN_REPLY_LEN && cell->handshake_len != NTOR_REPLY_LEN) return -1; break; case CELL_CREATED_FAST: if (cell->handshake_len != CREATED_FAST_LEN) return -1; break; case CELL_CREATED2: if (cell->handshake_len > RELAY_PAYLOAD_SIZE-2) return -1; break; } return 0; } /** Parse a CREATED, CREATED_FAST, or CREATED2 cell from cell_in into * cell_out. Return 0 on success, -1 on failure. */ int created_cell_parse(created_cell_t *cell_out, const cell_t *cell_in) { memset(cell_out, 0, sizeof(*cell_out)); switch (cell_in->command) { case CELL_CREATED: cell_out->cell_type = CELL_CREATED; cell_out->handshake_len = TAP_ONIONSKIN_REPLY_LEN; memcpy(cell_out->reply, cell_in->payload, TAP_ONIONSKIN_REPLY_LEN); break; case CELL_CREATED_FAST: cell_out->cell_type = CELL_CREATED_FAST; cell_out->handshake_len = CREATED_FAST_LEN; memcpy(cell_out->reply, cell_in->payload, CREATED_FAST_LEN); break; case CELL_CREATED2: { const uint8_t *p = cell_in->payload; cell_out->cell_type = CELL_CREATED2; cell_out->handshake_len = ntohs(get_uint16(p)); if (cell_out->handshake_len > CELL_PAYLOAD_SIZE - 2) return -1; memcpy(cell_out->reply, p+2, cell_out->handshake_len); break; } } return check_created_cell(cell_out); } /** Helper: return 0 if cell appears valid, -1 otherwise. */ static int check_extend_cell(const extend_cell_t *cell) { if (tor_digest_is_zero((const char*)cell->node_id)) return -1; /* We don't currently allow EXTEND2 cells without an IPv4 address */ if (tor_addr_family(&cell->orport_ipv4.addr) == AF_UNSPEC) return -1; if (cell->create_cell.cell_type == CELL_CREATE) { if (cell->cell_type != RELAY_COMMAND_EXTEND) return -1; } else if (cell->create_cell.cell_type == CELL_CREATE2) { if (cell->cell_type != RELAY_COMMAND_EXTEND2 && cell->cell_type != RELAY_COMMAND_EXTEND) return -1; } else { /* In particular, no CREATE_FAST cells are allowed */ return -1; } if (cell->create_cell.handshake_type == ONION_HANDSHAKE_TYPE_FAST) return -1; return check_create_cell(&cell->create_cell, 1); } /** Protocol constants for specifier types in EXTEND2 * @{ */ #define SPECTYPE_IPV4 0 #define SPECTYPE_IPV6 1 #define SPECTYPE_LEGACY_ID 2 /** @} */ /** Parse an EXTEND or EXTEND2 cell (according to command) from the * payload_length bytes of payload into cell_out. Return * 0 on success, -1 on failure. */ int extend_cell_parse(extend_cell_t *cell_out, const uint8_t command, const uint8_t *payload, size_t payload_length) { const uint8_t *eop; memset(cell_out, 0, sizeof(*cell_out)); if (payload_length > RELAY_PAYLOAD_SIZE) return -1; eop = payload + payload_length; switch (command) { case RELAY_COMMAND_EXTEND: { if (payload_length != 6 + TAP_ONIONSKIN_CHALLENGE_LEN + DIGEST_LEN) return -1; cell_out->cell_type = RELAY_COMMAND_EXTEND; tor_addr_from_ipv4n(&cell_out->orport_ipv4.addr, get_uint32(payload)); cell_out->orport_ipv4.port = ntohs(get_uint16(payload+4)); tor_addr_make_unspec(&cell_out->orport_ipv6.addr); if (tor_memeq(payload + 6, NTOR_CREATE_MAGIC, 16)) { cell_out->create_cell.cell_type = CELL_CREATE2; cell_out->create_cell.handshake_type = ONION_HANDSHAKE_TYPE_NTOR; cell_out->create_cell.handshake_len = NTOR_ONIONSKIN_LEN; memcpy(cell_out->create_cell.onionskin, payload + 22, NTOR_ONIONSKIN_LEN); } else { cell_out->create_cell.cell_type = CELL_CREATE; cell_out->create_cell.handshake_type = ONION_HANDSHAKE_TYPE_TAP; cell_out->create_cell.handshake_len = TAP_ONIONSKIN_CHALLENGE_LEN; memcpy(cell_out->create_cell.onionskin, payload + 6, TAP_ONIONSKIN_CHALLENGE_LEN); } memcpy(cell_out->node_id, payload + 6 + TAP_ONIONSKIN_CHALLENGE_LEN, DIGEST_LEN); break; } case RELAY_COMMAND_EXTEND2: { uint8_t n_specs, spectype, speclen; int i; int found_ipv4 = 0, found_ipv6 = 0, found_id = 0; tor_addr_make_unspec(&cell_out->orport_ipv4.addr); tor_addr_make_unspec(&cell_out->orport_ipv6.addr); if (payload_length == 0) return -1; cell_out->cell_type = RELAY_COMMAND_EXTEND2; n_specs = *payload++; /* Parse the specifiers. We'll only take the first IPv4 and first IPv6 * address, and the node ID, and ignore everything else */ for (i = 0; i < n_specs; ++i) { if (eop - payload < 2) return -1; spectype = payload[0]; speclen = payload[1]; payload += 2; if (eop - payload < speclen) return -1; switch (spectype) { case SPECTYPE_IPV4: if (speclen != 6) return -1; if (!found_ipv4) { tor_addr_from_ipv4n(&cell_out->orport_ipv4.addr, get_uint32(payload)); cell_out->orport_ipv4.port = ntohs(get_uint16(payload+4)); found_ipv4 = 1; } break; case SPECTYPE_IPV6: if (speclen != 18) return -1; if (!found_ipv6) { tor_addr_from_ipv6_bytes(&cell_out->orport_ipv6.addr, (const char*)payload); cell_out->orport_ipv6.port = ntohs(get_uint16(payload+16)); found_ipv6 = 1; } break; case SPECTYPE_LEGACY_ID: if (speclen != 20) return -1; if (found_id) return -1; memcpy(cell_out->node_id, payload, 20); found_id = 1; break; } payload += speclen; } if (!found_id || !found_ipv4) return -1; if (parse_create2_payload(&cell_out->create_cell,payload,eop-payload)<0) return -1; break; } default: return -1; } return check_extend_cell(cell_out); } /** Helper: return 0 if cell appears valid, -1 otherwise. */ static int check_extended_cell(const extended_cell_t *cell) { if (cell->created_cell.cell_type == CELL_CREATED) { if (cell->cell_type != RELAY_COMMAND_EXTENDED) return -1; } else if (cell->created_cell.cell_type == CELL_CREATED2) { if (cell->cell_type != RELAY_COMMAND_EXTENDED2) return -1; } else { return -1; } return check_created_cell(&cell->created_cell); } /** Parse an EXTENDED or EXTENDED2 cell (according to command) from the * payload_length bytes of payload into cell_out. Return * 0 on success, -1 on failure. */ int extended_cell_parse(extended_cell_t *cell_out, const uint8_t command, const uint8_t *payload, size_t payload_len) { memset(cell_out, 0, sizeof(*cell_out)); if (payload_len > RELAY_PAYLOAD_SIZE) return -1; switch (command) { case RELAY_COMMAND_EXTENDED: if (payload_len != TAP_ONIONSKIN_REPLY_LEN) return -1; cell_out->cell_type = RELAY_COMMAND_EXTENDED; cell_out->created_cell.cell_type = CELL_CREATED; cell_out->created_cell.handshake_len = TAP_ONIONSKIN_REPLY_LEN; memcpy(cell_out->created_cell.reply, payload, TAP_ONIONSKIN_REPLY_LEN); break; case RELAY_COMMAND_EXTENDED2: { cell_out->cell_type = RELAY_COMMAND_EXTENDED2; cell_out->created_cell.cell_type = CELL_CREATED2; cell_out->created_cell.handshake_len = ntohs(get_uint16(payload)); if (cell_out->created_cell.handshake_len > RELAY_PAYLOAD_SIZE - 2 || cell_out->created_cell.handshake_len > payload_len - 2) return -1; memcpy(cell_out->created_cell.reply, payload+2, cell_out->created_cell.handshake_len); } break; default: return -1; } return check_extended_cell(cell_out); } /** Fill cell_out with a correctly formatted version of the * CREATE{,_FAST,2} cell in cell_in. Return 0 on success, -1 on * failure. This is a cell we didn't originate if relayed is true. */ static int create_cell_format_impl(cell_t *cell_out, const create_cell_t *cell_in, int relayed) { uint8_t *p; size_t space; if (check_create_cell(cell_in, relayed) < 0) return -1; memset(cell_out->payload, 0, sizeof(cell_out->payload)); cell_out->command = cell_in->cell_type; p = cell_out->payload; space = sizeof(cell_out->payload); switch (cell_in->cell_type) { case CELL_CREATE: if (cell_in->handshake_type == ONION_HANDSHAKE_TYPE_NTOR) { memcpy(p, NTOR_CREATE_MAGIC, 16); p += 16; space -= 16; } /* Fall through */ case CELL_CREATE_FAST: tor_assert(cell_in->handshake_len <= space); memcpy(p, cell_in->onionskin, cell_in->handshake_len); break; case CELL_CREATE2: tor_assert(cell_in->handshake_len <= sizeof(cell_out->payload)-4); set_uint16(cell_out->payload, htons(cell_in->handshake_type)); set_uint16(cell_out->payload+2, htons(cell_in->handshake_len)); memcpy(cell_out->payload + 4, cell_in->onionskin, cell_in->handshake_len); break; default: return -1; } return 0; } int create_cell_format(cell_t *cell_out, const create_cell_t *cell_in) { return create_cell_format_impl(cell_out, cell_in, 0); } int create_cell_format_relayed(cell_t *cell_out, const create_cell_t *cell_in) { return create_cell_format_impl(cell_out, cell_in, 1); } /** Fill cell_out with a correctly formatted version of the * CREATED{,_FAST,2} cell in cell_in. Return 0 on success, -1 on * failure. */ int created_cell_format(cell_t *cell_out, const created_cell_t *cell_in) { if (check_created_cell(cell_in) < 0) return -1; memset(cell_out->payload, 0, sizeof(cell_out->payload)); cell_out->command = cell_in->cell_type; switch (cell_in->cell_type) { case CELL_CREATED: case CELL_CREATED_FAST: tor_assert(cell_in->handshake_len <= sizeof(cell_out->payload)); memcpy(cell_out->payload, cell_in->reply, cell_in->handshake_len); break; case CELL_CREATED2: tor_assert(cell_in->handshake_len <= sizeof(cell_out->payload)-2); set_uint16(cell_out->payload, htons(cell_in->handshake_len)); memcpy(cell_out->payload + 2, cell_in->reply, cell_in->handshake_len); break; default: return -1; } return 0; } /** Format the EXTEND{,2} cell in cell_in, storing its relay payload in * payload_out, the number of bytes used in *len_out, and the * relay command in *command_out. The payload_out must have * RELAY_PAYLOAD_SIZE bytes available. Return 0 on success, -1 on failure. */ int extend_cell_format(uint8_t *command_out, uint16_t *len_out, uint8_t *payload_out, const extend_cell_t *cell_in) { uint8_t *p, *eop; if (check_extend_cell(cell_in) < 0) return -1; p = payload_out; eop = payload_out + RELAY_PAYLOAD_SIZE; memset(p, 0, RELAY_PAYLOAD_SIZE); switch (cell_in->cell_type) { case RELAY_COMMAND_EXTEND: { *command_out = RELAY_COMMAND_EXTEND; *len_out = 6 + TAP_ONIONSKIN_CHALLENGE_LEN + DIGEST_LEN; set_uint32(p, tor_addr_to_ipv4n(&cell_in->orport_ipv4.addr)); set_uint16(p+4, ntohs(cell_in->orport_ipv4.port)); if (cell_in->create_cell.handshake_type == ONION_HANDSHAKE_TYPE_NTOR) { memcpy(p+6, NTOR_CREATE_MAGIC, 16); memcpy(p+22, cell_in->create_cell.onionskin, NTOR_ONIONSKIN_LEN); } else { memcpy(p+6, cell_in->create_cell.onionskin, TAP_ONIONSKIN_CHALLENGE_LEN); } memcpy(p+6+TAP_ONIONSKIN_CHALLENGE_LEN, cell_in->node_id, DIGEST_LEN); } break; case RELAY_COMMAND_EXTEND2: { uint8_t n = 2; *command_out = RELAY_COMMAND_EXTEND2; *p++ = n; /* 2 identifiers */ *p++ = SPECTYPE_IPV4; /* First is IPV4. */ *p++ = 6; /* It's 6 bytes long. */ set_uint32(p, tor_addr_to_ipv4n(&cell_in->orport_ipv4.addr)); set_uint16(p+4, htons(cell_in->orport_ipv4.port)); p += 6; *p++ = SPECTYPE_LEGACY_ID; /* Next is an identity digest. */ *p++ = 20; /* It's 20 bytes long */ memcpy(p, cell_in->node_id, DIGEST_LEN); p += 20; /* Now we can send the handshake */ set_uint16(p, htons(cell_in->create_cell.handshake_type)); set_uint16(p+2, htons(cell_in->create_cell.handshake_len)); p += 4; if (cell_in->create_cell.handshake_len > eop - p) return -1; memcpy(p, cell_in->create_cell.onionskin, cell_in->create_cell.handshake_len); p += cell_in->create_cell.handshake_len; *len_out = p - payload_out; } break; default: return -1; } return 0; } /** Format the EXTENDED{,2} cell in cell_in, storing its relay payload * in payload_out, the number of bytes used in *len_out, and the * relay command in *command_out. The payload_out must have * RELAY_PAYLOAD_SIZE bytes available. Return 0 on success, -1 on failure. */ int extended_cell_format(uint8_t *command_out, uint16_t *len_out, uint8_t *payload_out, const extended_cell_t *cell_in) { uint8_t *p; if (check_extended_cell(cell_in) < 0) return -1; p = payload_out; memset(p, 0, RELAY_PAYLOAD_SIZE); switch (cell_in->cell_type) { case RELAY_COMMAND_EXTENDED: { *command_out = RELAY_COMMAND_EXTENDED; *len_out = TAP_ONIONSKIN_REPLY_LEN; memcpy(payload_out, cell_in->created_cell.reply, TAP_ONIONSKIN_REPLY_LEN); } break; case RELAY_COMMAND_EXTENDED2: { *command_out = RELAY_COMMAND_EXTENDED2; *len_out = 2 + cell_in->created_cell.handshake_len; set_uint16(payload_out, htons(cell_in->created_cell.handshake_len)); if (2+cell_in->created_cell.handshake_len > RELAY_PAYLOAD_SIZE) return -1; memcpy(payload_out+2, cell_in->created_cell.reply, cell_in->created_cell.handshake_len); } break; default: return -1; } return 0; } tor-0.2.9.10/src/or/torcert.h0000644000175000017500000000525513051624457012546 00000000000000/* Copyright (c) 2014-2016, The Tor Project, Inc. */ /* See LICENSE for licensing information */ #ifndef TORCERT_H_INCLUDED #define TORCERT_H_INCLUDED #include "crypto_ed25519.h" #define SIGNED_KEY_TYPE_ED25519 0x01 #define CERT_TYPE_ID_SIGNING 0x04 #define CERT_TYPE_SIGNING_LINK 0x05 #define CERT_TYPE_SIGNING_AUTH 0x06 #define CERT_TYPE_ONION_ID 0x0A #define CERT_FLAG_INCLUDE_SIGNING_KEY 0x1 /** An ed25519-signed certificate as used throughout the Tor protocol. **/ typedef struct tor_cert_st { /** The key authenticated by this certificate */ ed25519_public_key_t signed_key; /** The key that signed this certificate. This value may be unset if the * certificate has never been checked, and didn't include its own key. */ ed25519_public_key_t signing_key; /** A time after which this certificate will no longer be valid. */ time_t valid_until; /** The encoded representation of this certificate */ uint8_t *encoded; /** The length of encoded */ size_t encoded_len; /** One of CERT_TYPE_... */ uint8_t cert_type; /** True iff we received a signing key embedded in this certificate */ unsigned signing_key_included : 1; /** True iff we checked the signature and found it bad */ unsigned sig_bad : 1; /** True iff we checked the signature and found it correct */ unsigned sig_ok : 1; /** True iff we checked the signature and first found that the cert * had expired */ unsigned cert_expired : 1; /** True iff we checked the signature and found the whole cert valid */ unsigned cert_valid : 1; } tor_cert_t; tor_cert_t *tor_cert_create(const ed25519_keypair_t *signing_key, uint8_t cert_type, const ed25519_public_key_t *signed_key, time_t now, time_t lifetime, uint32_t flags); tor_cert_t *tor_cert_parse(const uint8_t *cert, size_t certlen); void tor_cert_free(tor_cert_t *cert); int tor_cert_get_checkable_sig(ed25519_checkable_t *checkable_out, const tor_cert_t *out, const ed25519_public_key_t *pubkey); int tor_cert_checksig(tor_cert_t *cert, const ed25519_public_key_t *pubkey, time_t now); tor_cert_t *tor_cert_dup(const tor_cert_t *cert); int tor_cert_eq(const tor_cert_t *cert1, const tor_cert_t *cert2); int tor_cert_opt_eq(const tor_cert_t *cert1, const tor_cert_t *cert2); ssize_t tor_make_rsa_ed25519_crosscert(const ed25519_public_key_t *ed_key, const crypto_pk_t *rsa_key, time_t expires, uint8_t **cert); #endif tor-0.2.9.10/src/or/keypin.c0000644000175000017500000003521113002150440012327 00000000000000/* Copyright (c) 2014-2016, The Tor Project, Inc. */ /* See LICENSE for licensing information */ /** * \file keypin.c * * \brief Functions and structures for associating routers' RSA key * fingerprints with their ED25519 keys. */ #define KEYPIN_PRIVATE #include "orconfig.h" #include "compat.h" #include "crypto.h" #include "crypto_format.h" #include "di_ops.h" #include "ht.h" #include "keypin.h" #include "siphash.h" #include "torint.h" #include "torlog.h" #include "util.h" #include "util_format.h" #ifdef HAVE_UNISTD_H #include #endif #ifdef HAVE_FCNTL_H #include #endif #ifdef _WIN32 #include #endif /** * @file keypin.c * @brief Key-pinning for RSA and Ed25519 identity keys at directory * authorities. * * Many older clients, and many internal interfaces, still refer to relays by * their RSA1024 identity keys. We can make this more secure, however: * authorities use this module to track which RSA keys have been used along * with which Ed25519 keys, and force such associations to be permanent. * * This module implements a key-pinning mechanism to ensure that it's safe * to use RSA keys as identitifers even as we migrate to Ed25519 keys. It * remembers, for every Ed25519 key we've seen, what the associated Ed25519 * key is. This way, if we see a different Ed25519 key with that RSA key, * we'll know that there's a mismatch. * * (As of this writing, these key associations are advisory only, mostly * because some relay operators kept mishandling their Ed25519 keys during * the initial Ed25519 rollout. We should fix this problem, and then toggle * the AuthDirPinKeys option.) * * We persist these entries to disk using a simple format, where each line * has a base64-encoded RSA SHA1 hash, then a base64-endoded Ed25519 key. * Empty lines, misformed lines, and lines beginning with # are * ignored. Lines beginning with @ are reserved for future extensions. * * The dirserv.c module is the main user of these functions. */ static int keypin_journal_append_entry(const uint8_t *rsa_id_digest, const uint8_t *ed25519_id_key); static int keypin_check_and_add_impl(const uint8_t *rsa_id_digest, const uint8_t *ed25519_id_key, const int do_not_add, const int replace); static int keypin_add_or_replace_entry_in_map(keypin_ent_t *ent); static HT_HEAD(rsamap, keypin_ent_st) the_rsa_map = HT_INITIALIZER(); static HT_HEAD(edmap, keypin_ent_st) the_ed_map = HT_INITIALIZER(); /** Hashtable helper: compare two keypin table entries and return true iff * they have the same RSA key IDs. */ static inline int keypin_ents_eq_rsa(const keypin_ent_t *a, const keypin_ent_t *b) { return tor_memeq(a->rsa_id, b->rsa_id, sizeof(a->rsa_id)); } /** Hashtable helper: hash a keypin table entries based on its RSA key ID */ static inline unsigned keypin_ent_hash_rsa(const keypin_ent_t *a) { return (unsigned) siphash24g(a->rsa_id, sizeof(a->rsa_id)); } /** Hashtable helper: compare two keypin table entries and return true iff * they have the same ed25519 keys */ static inline int keypin_ents_eq_ed(const keypin_ent_t *a, const keypin_ent_t *b) { return tor_memeq(a->ed25519_key, b->ed25519_key, sizeof(a->ed25519_key)); } /** Hashtable helper: hash a keypin table entries based on its ed25519 key */ static inline unsigned keypin_ent_hash_ed(const keypin_ent_t *a) { return (unsigned) siphash24g(a->ed25519_key, sizeof(a->ed25519_key)); } HT_PROTOTYPE(rsamap, keypin_ent_st, rsamap_node, keypin_ent_hash_rsa, keypin_ents_eq_rsa) HT_GENERATE2(rsamap, keypin_ent_st, rsamap_node, keypin_ent_hash_rsa, keypin_ents_eq_rsa, 0.6, tor_reallocarray, tor_free_) HT_PROTOTYPE(edmap, keypin_ent_st, edmap_node, keypin_ent_hash_ed, keypin_ents_eq_ed) HT_GENERATE2(edmap, keypin_ent_st, edmap_node, keypin_ent_hash_ed, keypin_ents_eq_ed, 0.6, tor_reallocarray, tor_free_) /** * Check whether we already have an entry in the key pinning table for a * router with RSA ID digest rsa_id_digest or for ed25519 key * ed25519_id_key. If we have an entry that matches both keys, * return KEYPIN_FOUND. If we find an entry that matches one key but * not the other, return KEYPIN_MISMATCH. If we have no entry for either * key, add such an entry to the table and return KEYPIN_ADDED. * * If replace_existing_entry is true, then any time we would have said * KEYPIN_FOUND, we instead add this entry anyway and return KEYPIN_ADDED. */ int keypin_check_and_add(const uint8_t *rsa_id_digest, const uint8_t *ed25519_id_key, const int replace_existing_entry) { return keypin_check_and_add_impl(rsa_id_digest, ed25519_id_key, 0, replace_existing_entry); } /** * As keypin_check_and_add, but do not add. Return KEYPIN_NOT_FOUND if * we would add. */ int keypin_check(const uint8_t *rsa_id_digest, const uint8_t *ed25519_id_key) { return keypin_check_and_add_impl(rsa_id_digest, ed25519_id_key, 1, 0); } /** * Helper: implements keypin_check and keypin_check_and_add. */ static int keypin_check_and_add_impl(const uint8_t *rsa_id_digest, const uint8_t *ed25519_id_key, const int do_not_add, const int replace) { keypin_ent_t search, *ent; memset(&search, 0, sizeof(search)); memcpy(search.rsa_id, rsa_id_digest, sizeof(search.rsa_id)); memcpy(search.ed25519_key, ed25519_id_key, sizeof(search.ed25519_key)); /* Search by RSA key digest first */ ent = HT_FIND(rsamap, &the_rsa_map, &search); if (ent) { tor_assert(fast_memeq(ent->rsa_id, rsa_id_digest, sizeof(ent->rsa_id))); if (tor_memeq(ent->ed25519_key, ed25519_id_key,sizeof(ent->ed25519_key))) { return KEYPIN_FOUND; /* Match on both keys. Great. */ } else { if (!replace) return KEYPIN_MISMATCH; /* Found RSA with different Ed key */ } } /* See if we know a different RSA key for this ed key */ if (! replace) { ent = HT_FIND(edmap, &the_ed_map, &search); if (ent) { /* If we got here, then the ed key matches and the RSA doesn't */ tor_assert(fast_memeq(ent->ed25519_key, ed25519_id_key, sizeof(ent->ed25519_key))); tor_assert(fast_memneq(ent->rsa_id, rsa_id_digest, sizeof(ent->rsa_id))); return KEYPIN_MISMATCH; } } /* Okay, this one is new to us. */ if (do_not_add) return KEYPIN_NOT_FOUND; ent = tor_memdup(&search, sizeof(search)); int r = keypin_add_or_replace_entry_in_map(ent); if (! replace) { tor_assert(r == 1); } else { tor_assert(r != 0); } keypin_journal_append_entry(rsa_id_digest, ed25519_id_key); return KEYPIN_ADDED; } /** * Helper: add ent to the hash tables. */ MOCK_IMPL(STATIC void, keypin_add_entry_to_map, (keypin_ent_t *ent)) { HT_INSERT(rsamap, &the_rsa_map, ent); HT_INSERT(edmap, &the_ed_map, ent); } /** * Helper: add 'ent' to the maps, replacing any entries that contradict it. * Take ownership of 'ent', freeing it if needed. * * Return 0 if the entry was a duplicate, -1 if there was a conflict, * and 1 if there was no conflict. */ static int keypin_add_or_replace_entry_in_map(keypin_ent_t *ent) { int r = 1; keypin_ent_t *ent2 = HT_FIND(rsamap, &the_rsa_map, ent); keypin_ent_t *ent3 = HT_FIND(edmap, &the_ed_map, ent); if (ent2 && fast_memeq(ent2->ed25519_key, ent->ed25519_key, DIGEST256_LEN)) { /* We already have this mapping stored. Ignore it. */ tor_free(ent); return 0; } else if (ent2 || ent3) { /* We have a conflict. (If we had no entry, we would have ent2 == ent3 * == NULL. If we had a non-conflicting duplicate, we would have found * it above.) * * We respond by having this entry (ent) supersede all entries that it * contradicts (ent2 and/or ent3). In other words, if we receive * , we remove all and all , for rsa'!=rsa * and ed'!= ed. */ const keypin_ent_t *t; if (ent2) { t = HT_REMOVE(rsamap, &the_rsa_map, ent2); tor_assert(ent2 == t); t = HT_REMOVE(edmap, &the_ed_map, ent2); tor_assert(ent2 == t); } if (ent3 && ent2 != ent3) { t = HT_REMOVE(rsamap, &the_rsa_map, ent3); tor_assert(ent3 == t); t = HT_REMOVE(edmap, &the_ed_map, ent3); tor_assert(ent3 == t); tor_free(ent3); } tor_free(ent2); r = -1; /* Fall through */ } keypin_add_entry_to_map(ent); return r; } /** * Check whether we already have an entry in the key pinning table for a * router with RSA ID digest rsa_id_digest. If we have no such entry, * return KEYPIN_NOT_FOUND. If we find an entry that matches the RSA key but * which has an ed25519 key, return KEYPIN_MISMATCH. */ int keypin_check_lone_rsa(const uint8_t *rsa_id_digest) { keypin_ent_t search, *ent; memset(&search, 0, sizeof(search)); memcpy(search.rsa_id, rsa_id_digest, sizeof(search.rsa_id)); /* Search by RSA key digest first */ ent = HT_FIND(rsamap, &the_rsa_map, &search); if (ent) { return KEYPIN_MISMATCH; } else { return KEYPIN_NOT_FOUND; } } /** Open fd to the keypinning journal file. */ static int keypin_journal_fd = -1; /** Open the key-pinning journal to append to fname. Return 0 on * success, -1 on failure. */ int keypin_open_journal(const char *fname) { /* O_SYNC ??*/ int fd = tor_open_cloexec(fname, O_WRONLY|O_CREAT|O_BINARY, 0600); if (fd < 0) goto err; if (tor_fd_seekend(fd) < 0) goto err; /* Add a newline in case the last line was only partially written */ if (write(fd, "\n", 1) < 1) goto err; /* Add something about when we opened this file. */ char buf[80]; char tbuf[ISO_TIME_LEN+1]; format_iso_time(tbuf, approx_time()); tor_snprintf(buf, sizeof(buf), "@opened-at %s\n", tbuf); if (write_all(fd, buf, strlen(buf), 0) < 0) goto err; keypin_journal_fd = fd; return 0; err: if (fd >= 0) close(fd); return -1; } /** Close the keypinning journal file. */ int keypin_close_journal(void) { if (keypin_journal_fd >= 0) close(keypin_journal_fd); keypin_journal_fd = -1; return 0; } /** Length of a keypinning journal line, including terminating newline. */ #define JOURNAL_LINE_LEN (BASE64_DIGEST_LEN + BASE64_DIGEST256_LEN + 2) /** Add an entry to the keypinning journal to map rsa_id_digest and * ed25519_id_key. */ static int keypin_journal_append_entry(const uint8_t *rsa_id_digest, const uint8_t *ed25519_id_key) { if (keypin_journal_fd == -1) return -1; char line[JOURNAL_LINE_LEN]; digest_to_base64(line, (const char*)rsa_id_digest); line[BASE64_DIGEST_LEN] = ' '; digest256_to_base64(line + BASE64_DIGEST_LEN + 1, (const char*)ed25519_id_key); line[BASE64_DIGEST_LEN+1+BASE64_DIGEST256_LEN] = '\n'; if (write_all(keypin_journal_fd, line, JOURNAL_LINE_LEN, 0)<0) { log_warn(LD_DIRSERV, "Error while adding a line to the key-pinning " "journal: %s", strerror(errno)); keypin_close_journal(); return -1; } return 0; } /** Load a journal from the size-byte region at data. Return 0 * on success, -1 on failure. */ STATIC int keypin_load_journal_impl(const char *data, size_t size) { const char *start = data, *end = data + size, *next; int n_corrupt_lines = 0; int n_entries = 0; int n_duplicates = 0; int n_conflicts = 0; for (const char *cp = start; cp < end; cp = next) { const char *eol = memchr(cp, '\n', end-cp); const char *eos = eol ? eol : end; const size_t len = eos - cp; next = eol ? eol + 1 : end; if (len == 0) { continue; } if (*cp == '@') { /* Lines that start with @ are reserved. Ignore for now. */ continue; } if (*cp == '#') { /* Lines that start with # are comments. */ continue; } /* Is it the right length? (The -1 here is for the newline.) */ if (len != JOURNAL_LINE_LEN - 1) { /* Lines with a bad length are corrupt unless they are empty. * Ignore them either way */ for (const char *s = cp; s < eos; ++s) { if (! TOR_ISSPACE(*s)) { ++n_corrupt_lines; break; } } continue; } keypin_ent_t *ent = keypin_parse_journal_line(cp); if (ent == NULL) { ++n_corrupt_lines; continue; } const int r = keypin_add_or_replace_entry_in_map(ent); if (r == 0) { ++n_duplicates; } else if (r == -1) { ++n_conflicts; } ++n_entries; } int severity = (n_corrupt_lines || n_duplicates) ? LOG_WARN : LOG_INFO; tor_log(severity, LD_DIRSERV, "Loaded %d entries from keypin journal. " "Found %d corrupt lines, %d duplicates, and %d conflicts.", n_entries, n_corrupt_lines, n_duplicates, n_conflicts); return 0; } /** * Load a journal from the file called fname. Return 0 on success, * -1 on failure. */ int keypin_load_journal(const char *fname) { tor_mmap_t *map = tor_mmap_file(fname); if (!map) { if (errno == ENOENT) return 0; else return -1; } int r = keypin_load_journal_impl(map->data, map->size); tor_munmap_file(map); return r; } /** Parse a single keypinning journal line entry from cp. The input * does not need to be NUL-terminated, but it does need to have * KEYPIN_JOURNAL_LINE_LEN -1 bytes available to read. Return a new entry * on success, and NULL on failure. */ STATIC keypin_ent_t * keypin_parse_journal_line(const char *cp) { /* XXXX assumes !USE_OPENSSL_BASE64 */ keypin_ent_t *ent = tor_malloc_zero(sizeof(keypin_ent_t)); if (base64_decode((char*)ent->rsa_id, sizeof(ent->rsa_id), cp, BASE64_DIGEST_LEN) != DIGEST_LEN || cp[BASE64_DIGEST_LEN] != ' ' || base64_decode((char*)ent->ed25519_key, sizeof(ent->ed25519_key), cp+BASE64_DIGEST_LEN+1, BASE64_DIGEST256_LEN) != DIGEST256_LEN) { tor_free(ent); return NULL; } else { return ent; } } /** Remove all entries from the keypinning table.*/ void keypin_clear(void) { int bad_entries = 0; { keypin_ent_t **ent, **next, *this; for (ent = HT_START(rsamap, &the_rsa_map); ent != NULL; ent = next) { this = *ent; next = HT_NEXT_RMV(rsamap, &the_rsa_map, ent); keypin_ent_t *other_ent = HT_REMOVE(edmap, &the_ed_map, this); bad_entries += (other_ent != this); tor_free(this); } } bad_entries += HT_SIZE(&the_ed_map); HT_CLEAR(edmap,&the_ed_map); HT_CLEAR(rsamap,&the_rsa_map); if (bad_entries) { log_warn(LD_BUG, "Found %d discrepencies in the keypin database.", bad_entries); } } tor-0.2.9.10/src/or/or.h0000644000175000017500000066322313051624457011511 00000000000000/* Copyright (c) 2001 Matej Pfajfar. * Copyright (c) 2001-2004, Roger Dingledine. * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson. * Copyright (c) 2007-2016, The Tor Project, Inc. */ /* See LICENSE for licensing information */ /** * \file or.h * \brief Master header file for Tor-specific functionality. **/ #ifndef TOR_OR_H #define TOR_OR_H #include "orconfig.h" #ifdef HAVE_UNISTD_H #include #endif #ifdef HAVE_SIGNAL_H #include #endif #ifdef HAVE_NETDB_H #include #endif #ifdef HAVE_SYS_PARAM_H #include /* FreeBSD needs this to know what version it is */ #endif #include "torint.h" #ifdef HAVE_SYS_FCNTL_H #include #endif #ifdef HAVE_FCNTL_H #include #endif #ifdef HAVE_SYS_IOCTL_H #include #endif #ifdef HAVE_SYS_UN_H #include #endif #ifdef HAVE_SYS_STAT_H #include #endif #ifdef HAVE_NETINET_IN_H #include #endif #ifdef HAVE_ARPA_INET_H #include #endif #ifdef HAVE_ERRNO_H #include #endif #ifdef HAVE_ASSERT_H #include #endif #ifdef HAVE_TIME_H #include #endif #ifdef _WIN32 #include #include #include #include #include #endif #include "crypto.h" #include "crypto_format.h" #include "tortls.h" #include "torlog.h" #include "container.h" #include "torgzip.h" #include "address.h" #include "compat_libevent.h" #include "ht.h" #include "replaycache.h" #include "crypto_curve25519.h" #include "crypto_ed25519.h" #include "tor_queue.h" #include "util_format.h" /* These signals are defined to help handle_control_signal work. */ #ifndef SIGHUP #define SIGHUP 1 #endif #ifndef SIGINT #define SIGINT 2 #endif #ifndef SIGUSR1 #define SIGUSR1 10 #endif #ifndef SIGUSR2 #define SIGUSR2 12 #endif #ifndef SIGTERM #define SIGTERM 15 #endif /* Controller signals start at a high number so we don't * conflict with system-defined signals. */ #define SIGNEWNYM 129 #define SIGCLEARDNSCACHE 130 #define SIGHEARTBEAT 131 #if (SIZEOF_CELL_T != 0) /* On Irix, stdlib.h defines a cell_t type, so we need to make sure * that our stuff always calls cell_t something different. */ #define cell_t tor_cell_t #endif #ifdef ENABLE_TOR2WEB_MODE #define NON_ANONYMOUS_MODE_ENABLED 1 #endif /** Length of longest allowable configured nickname. */ #define MAX_NICKNAME_LEN 19 /** Length of a router identity encoded as a hexadecimal digest, plus * possible dollar sign. */ #define MAX_HEX_NICKNAME_LEN (HEX_DIGEST_LEN+1) /** Maximum length of verbose router identifier: dollar sign, hex ID digest, * equal sign or tilde, nickname. */ #define MAX_VERBOSE_NICKNAME_LEN (1+HEX_DIGEST_LEN+1+MAX_NICKNAME_LEN) /** Maximum size, in bytes, for resized buffers. */ #define MAX_BUF_SIZE ((1<<24)-1) /* 16MB-1 */ /** Maximum size, in bytes, for any directory object that we've downloaded. */ #define MAX_DIR_DL_SIZE MAX_BUF_SIZE /** For HTTP parsing: Maximum number of bytes we'll accept in the headers * of an HTTP request or response. */ #define MAX_HEADERS_SIZE 50000 /** Maximum size, in bytes, for any directory object that we're accepting * as an upload. */ #define MAX_DIR_UL_SIZE MAX_BUF_SIZE /** Maximum size, in bytes, of a single router descriptor uploaded to us * as a directory authority. Caches and clients fetch whatever descriptors * the authorities tell them to fetch, and don't care about size. */ #define MAX_DESCRIPTOR_UPLOAD_SIZE 20000 /** Maximum size of a single extrainfo document, as above. */ #define MAX_EXTRAINFO_UPLOAD_SIZE 50000 /** How long do we keep DNS cache entries before purging them (regardless of * their TTL)? */ #define MAX_DNS_ENTRY_AGE (30*60) /** How long do we cache/tell clients to cache DNS records when no TTL is * known? */ #define DEFAULT_DNS_TTL (30*60) /** How long can a TTL be before we stop believing it? */ #define MAX_DNS_TTL (3*60*60) /** How small can a TTL be before we stop believing it? Provides rudimentary * pinning. */ #define MIN_DNS_TTL 60 /** How often do we rotate onion keys? */ #define MIN_ONION_KEY_LIFETIME (7*24*60*60) /** How often do we rotate TLS contexts? */ #define MAX_SSL_KEY_LIFETIME_INTERNAL (2*60*60) /** How old do we allow a router to get before removing it * from the router list? In seconds. */ #define ROUTER_MAX_AGE (60*60*48) /** How old can a router get before we (as a server) will no longer * consider it live? In seconds. */ #define ROUTER_MAX_AGE_TO_PUBLISH (60*60*24) /** How old do we let a saved descriptor get before force-removing it? */ #define OLD_ROUTER_DESC_MAX_AGE (60*60*24*5) /** Possible rules for generating circuit IDs on an OR connection. */ typedef enum { CIRC_ID_TYPE_LOWER=0, /**< Pick from 0..1<<15-1. */ CIRC_ID_TYPE_HIGHER=1, /**< Pick from 1<<15..1<<16-1. */ /** The other side of a connection is an OP: never create circuits to it, * and let it use any circuit ID it wants. */ CIRC_ID_TYPE_NEITHER=2 } circ_id_type_t; #define circ_id_type_bitfield_t ENUM_BF(circ_id_type_t) #define CONN_TYPE_MIN_ 3 /** Type for sockets listening for OR connections. */ #define CONN_TYPE_OR_LISTENER 3 /** A bidirectional TLS connection transmitting a sequence of cells. * May be from an OR to an OR, or from an OP to an OR. */ #define CONN_TYPE_OR 4 /** A TCP connection from an onion router to a stream's destination. */ #define CONN_TYPE_EXIT 5 /** Type for sockets listening for SOCKS connections. */ #define CONN_TYPE_AP_LISTENER 6 /** A SOCKS proxy connection from the user application to the onion * proxy. */ #define CONN_TYPE_AP 7 /** Type for sockets listening for HTTP connections to the directory server. */ #define CONN_TYPE_DIR_LISTENER 8 /** Type for HTTP connections to the directory server. */ #define CONN_TYPE_DIR 9 /* Type 10 is unused. */ /** Type for listening for connections from user interface process. */ #define CONN_TYPE_CONTROL_LISTENER 11 /** Type for connections from user interface process. */ #define CONN_TYPE_CONTROL 12 /** Type for sockets listening for transparent connections redirected by pf or * netfilter. */ #define CONN_TYPE_AP_TRANS_LISTENER 13 /** Type for sockets listening for transparent connections redirected by * natd. */ #define CONN_TYPE_AP_NATD_LISTENER 14 /** Type for sockets listening for DNS requests. */ #define CONN_TYPE_AP_DNS_LISTENER 15 /** Type for connections from the Extended ORPort. */ #define CONN_TYPE_EXT_OR 16 /** Type for sockets listening for Extended ORPort connections. */ #define CONN_TYPE_EXT_OR_LISTENER 17 #define CONN_TYPE_MAX_ 17 /* !!!! If _CONN_TYPE_MAX is ever over 31, we must grow the type field in * connection_t. */ /* Proxy client types */ #define PROXY_NONE 0 #define PROXY_CONNECT 1 #define PROXY_SOCKS4 2 #define PROXY_SOCKS5 3 /* !!!! If there is ever a PROXY_* type over 3, we must grow the proxy_type * field in or_connection_t */ /* Pluggable transport proxy type. Don't use this in or_connection_t, * instead use the actual underlying proxy type (see above). */ #define PROXY_PLUGGABLE 4 /* Proxy client handshake states */ /* We use a proxy but we haven't even connected to it yet. */ #define PROXY_INFANT 1 /* We use an HTTP proxy and we've sent the CONNECT command. */ #define PROXY_HTTPS_WANT_CONNECT_OK 2 /* We use a SOCKS4 proxy and we've sent the CONNECT command. */ #define PROXY_SOCKS4_WANT_CONNECT_OK 3 /* We use a SOCKS5 proxy and we try to negotiate without any authentication . */ #define PROXY_SOCKS5_WANT_AUTH_METHOD_NONE 4 /* We use a SOCKS5 proxy and we try to negotiate with Username/Password authentication . */ #define PROXY_SOCKS5_WANT_AUTH_METHOD_RFC1929 5 /* We use a SOCKS5 proxy and we just sent our credentials. */ #define PROXY_SOCKS5_WANT_AUTH_RFC1929_OK 6 /* We use a SOCKS5 proxy and we just sent our CONNECT command. */ #define PROXY_SOCKS5_WANT_CONNECT_OK 7 /* We use a proxy and we CONNECTed successfully!. */ #define PROXY_CONNECTED 8 /** True iff x is an edge connection. */ #define CONN_IS_EDGE(x) \ ((x)->type == CONN_TYPE_EXIT || (x)->type == CONN_TYPE_AP) /** State for any listener connection. */ #define LISTENER_STATE_READY 0 #define OR_CONN_STATE_MIN_ 1 /** State for a connection to an OR: waiting for connect() to finish. */ #define OR_CONN_STATE_CONNECTING 1 /** State for a connection to an OR: waiting for proxy handshake to complete */ #define OR_CONN_STATE_PROXY_HANDSHAKING 2 /** State for an OR connection client: SSL is handshaking, not done * yet. */ #define OR_CONN_STATE_TLS_HANDSHAKING 3 /** State for a connection to an OR: We're doing a second SSL handshake for * renegotiation purposes. (V2 handshake only.) */ #define OR_CONN_STATE_TLS_CLIENT_RENEGOTIATING 4 /** State for a connection at an OR: We're waiting for the client to * renegotiate (to indicate a v2 handshake) or send a versions cell (to * indicate a v3 handshake) */ #define OR_CONN_STATE_TLS_SERVER_RENEGOTIATING 5 /** State for an OR connection: We're done with our SSL handshake, we've done * renegotiation, but we haven't yet negotiated link protocol versions and * sent a netinfo cell. */ #define OR_CONN_STATE_OR_HANDSHAKING_V2 6 /** State for an OR connection: We're done with our SSL handshake, but we * haven't yet negotiated link protocol versions, done a V3 handshake, and * sent a netinfo cell. */ #define OR_CONN_STATE_OR_HANDSHAKING_V3 7 /** State for an OR connection: Ready to send/receive cells. */ #define OR_CONN_STATE_OPEN 8 #define OR_CONN_STATE_MAX_ 8 /** States of the Extended ORPort protocol. Be careful before changing * the numbers: they matter. */ #define EXT_OR_CONN_STATE_MIN_ 1 /** Extended ORPort authentication is waiting for the authentication * type selected by the client. */ #define EXT_OR_CONN_STATE_AUTH_WAIT_AUTH_TYPE 1 /** Extended ORPort authentication is waiting for the client nonce. */ #define EXT_OR_CONN_STATE_AUTH_WAIT_CLIENT_NONCE 2 /** Extended ORPort authentication is waiting for the client hash. */ #define EXT_OR_CONN_STATE_AUTH_WAIT_CLIENT_HASH 3 #define EXT_OR_CONN_STATE_AUTH_MAX 3 /** Authentication finished and the Extended ORPort is now accepting * traffic. */ #define EXT_OR_CONN_STATE_OPEN 4 /** Extended ORPort is flushing its last messages and preparing to * start accepting OR connections. */ #define EXT_OR_CONN_STATE_FLUSHING 5 #define EXT_OR_CONN_STATE_MAX_ 5 #define EXIT_CONN_STATE_MIN_ 1 /** State for an exit connection: waiting for response from DNS farm. */ #define EXIT_CONN_STATE_RESOLVING 1 /** State for an exit connection: waiting for connect() to finish. */ #define EXIT_CONN_STATE_CONNECTING 2 /** State for an exit connection: open and ready to transmit data. */ #define EXIT_CONN_STATE_OPEN 3 /** State for an exit connection: waiting to be removed. */ #define EXIT_CONN_STATE_RESOLVEFAILED 4 #define EXIT_CONN_STATE_MAX_ 4 /* The AP state values must be disjoint from the EXIT state values. */ #define AP_CONN_STATE_MIN_ 5 /** State for a SOCKS connection: waiting for SOCKS request. */ #define AP_CONN_STATE_SOCKS_WAIT 5 /** State for a SOCKS connection: got a y.onion URL; waiting to receive * rendezvous descriptor. */ #define AP_CONN_STATE_RENDDESC_WAIT 6 /** The controller will attach this connection to a circuit; it isn't our * job to do so. */ #define AP_CONN_STATE_CONTROLLER_WAIT 7 /** State for a SOCKS connection: waiting for a completed circuit. */ #define AP_CONN_STATE_CIRCUIT_WAIT 8 /** State for a SOCKS connection: sent BEGIN, waiting for CONNECTED. */ #define AP_CONN_STATE_CONNECT_WAIT 9 /** State for a SOCKS connection: sent RESOLVE, waiting for RESOLVED. */ #define AP_CONN_STATE_RESOLVE_WAIT 10 /** State for a SOCKS connection: ready to send and receive. */ #define AP_CONN_STATE_OPEN 11 /** State for a transparent natd connection: waiting for original * destination. */ #define AP_CONN_STATE_NATD_WAIT 12 #define AP_CONN_STATE_MAX_ 12 /** True iff the AP_CONN_STATE_* value s means that the corresponding * edge connection is not attached to any circuit. */ #define AP_CONN_STATE_IS_UNATTACHED(s) \ ((s) <= AP_CONN_STATE_CIRCUIT_WAIT || (s) == AP_CONN_STATE_NATD_WAIT) #define DIR_CONN_STATE_MIN_ 1 /** State for connection to directory server: waiting for connect(). */ #define DIR_CONN_STATE_CONNECTING 1 /** State for connection to directory server: sending HTTP request. */ #define DIR_CONN_STATE_CLIENT_SENDING 2 /** State for connection to directory server: reading HTTP response. */ #define DIR_CONN_STATE_CLIENT_READING 3 /** State for connection to directory server: happy and finished. */ #define DIR_CONN_STATE_CLIENT_FINISHED 4 /** State for connection at directory server: waiting for HTTP request. */ #define DIR_CONN_STATE_SERVER_COMMAND_WAIT 5 /** State for connection at directory server: sending HTTP response. */ #define DIR_CONN_STATE_SERVER_WRITING 6 #define DIR_CONN_STATE_MAX_ 6 /** True iff the purpose of conn means that it's a server-side * directory connection. */ #define DIR_CONN_IS_SERVER(conn) ((conn)->purpose == DIR_PURPOSE_SERVER) #define CONTROL_CONN_STATE_MIN_ 1 /** State for a control connection: Authenticated and accepting v1 commands. */ #define CONTROL_CONN_STATE_OPEN 1 /** State for a control connection: Waiting for authentication; speaking * protocol v1. */ #define CONTROL_CONN_STATE_NEEDAUTH 2 #define CONTROL_CONN_STATE_MAX_ 2 #define DIR_PURPOSE_MIN_ 4 /** A connection to a directory server: set after a v2 rendezvous * descriptor is downloaded. */ #define DIR_PURPOSE_HAS_FETCHED_RENDDESC_V2 4 /** A connection to a directory server: download one or more server * descriptors. */ #define DIR_PURPOSE_FETCH_SERVERDESC 6 /** A connection to a directory server: download one or more extra-info * documents. */ #define DIR_PURPOSE_FETCH_EXTRAINFO 7 /** A connection to a directory server: upload a server descriptor. */ #define DIR_PURPOSE_UPLOAD_DIR 8 /** A connection to a directory server: upload a v3 networkstatus vote. */ #define DIR_PURPOSE_UPLOAD_VOTE 10 /** A connection to a directory server: upload a v3 consensus signature */ #define DIR_PURPOSE_UPLOAD_SIGNATURES 11 /** A connection to a directory server: download one or more v3 networkstatus * votes. */ #define DIR_PURPOSE_FETCH_STATUS_VOTE 12 /** A connection to a directory server: download a v3 detached signatures * object for a consensus. */ #define DIR_PURPOSE_FETCH_DETACHED_SIGNATURES 13 /** A connection to a directory server: download a v3 networkstatus * consensus. */ #define DIR_PURPOSE_FETCH_CONSENSUS 14 /** A connection to a directory server: download one or more directory * authority certificates. */ #define DIR_PURPOSE_FETCH_CERTIFICATE 15 /** Purpose for connection at a directory server. */ #define DIR_PURPOSE_SERVER 16 /** A connection to a hidden service directory server: upload a v2 rendezvous * descriptor. */ #define DIR_PURPOSE_UPLOAD_RENDDESC_V2 17 /** A connection to a hidden service directory server: download a v2 rendezvous * descriptor. */ #define DIR_PURPOSE_FETCH_RENDDESC_V2 18 /** A connection to a directory server: download a microdescriptor. */ #define DIR_PURPOSE_FETCH_MICRODESC 19 #define DIR_PURPOSE_MAX_ 19 /** True iff p is a purpose corresponding to uploading data to a * directory server. */ #define DIR_PURPOSE_IS_UPLOAD(p) \ ((p)==DIR_PURPOSE_UPLOAD_DIR || \ (p)==DIR_PURPOSE_UPLOAD_VOTE || \ (p)==DIR_PURPOSE_UPLOAD_SIGNATURES) #define EXIT_PURPOSE_MIN_ 1 /** This exit stream wants to do an ordinary connect. */ #define EXIT_PURPOSE_CONNECT 1 /** This exit stream wants to do a resolve (either normal or reverse). */ #define EXIT_PURPOSE_RESOLVE 2 #define EXIT_PURPOSE_MAX_ 2 /* !!!! If any connection purpose is ever over 31, we must grow the type * field in connection_t. */ /** Circuit state: I'm the origin, still haven't done all my handshakes. */ #define CIRCUIT_STATE_BUILDING 0 /** Circuit state: Waiting to process the onionskin. */ #define CIRCUIT_STATE_ONIONSKIN_PENDING 1 /** Circuit state: I'd like to deliver a create, but my n_chan is still * connecting. */ #define CIRCUIT_STATE_CHAN_WAIT 2 /** Circuit state: onionskin(s) processed, ready to send/receive cells. */ #define CIRCUIT_STATE_OPEN 3 #define CIRCUIT_PURPOSE_MIN_ 1 /* these circuits were initiated elsewhere */ #define CIRCUIT_PURPOSE_OR_MIN_ 1 /** OR-side circuit purpose: normal circuit, at OR. */ #define CIRCUIT_PURPOSE_OR 1 /** OR-side circuit purpose: At OR, from the service, waiting for intro from * clients. */ #define CIRCUIT_PURPOSE_INTRO_POINT 2 /** OR-side circuit purpose: At OR, from the client, waiting for the service. */ #define CIRCUIT_PURPOSE_REND_POINT_WAITING 3 /** OR-side circuit purpose: At OR, both circuits have this purpose. */ #define CIRCUIT_PURPOSE_REND_ESTABLISHED 4 #define CIRCUIT_PURPOSE_OR_MAX_ 4 /* these circuits originate at this node */ /* here's how circ client-side purposes work: * normal circuits are C_GENERAL. * circuits that are c_introducing are either on their way to * becoming open, or they are open and waiting for a * suitable rendcirc before they send the intro. * circuits that are c_introduce_ack_wait have sent the intro, * but haven't gotten a response yet. * circuits that are c_establish_rend are either on their way * to becoming open, or they are open and have sent the * establish_rendezvous cell but haven't received an ack. * circuits that are c_rend_ready are open and have received a * rend ack, but haven't heard from the service yet. if they have a * buildstate->pending_final_cpath then they're expecting a * cell from the service, else they're not. * circuits that are c_rend_ready_intro_acked are open, and * some intro circ has sent its intro and received an ack. * circuits that are c_rend_joined are open, have heard from * the service, and are talking to it. */ /** Client-side circuit purpose: Normal circuit, with cpath. */ #define CIRCUIT_PURPOSE_C_GENERAL 5 /** Client-side circuit purpose: at the client, connecting to intro point. */ #define CIRCUIT_PURPOSE_C_INTRODUCING 6 /** Client-side circuit purpose: at the client, sent INTRODUCE1 to intro point, * waiting for ACK/NAK. */ #define CIRCUIT_PURPOSE_C_INTRODUCE_ACK_WAIT 7 /** Client-side circuit purpose: at the client, introduced and acked, closing. */ #define CIRCUIT_PURPOSE_C_INTRODUCE_ACKED 8 /** Client-side circuit purpose: at the client, waiting for ack. */ #define CIRCUIT_PURPOSE_C_ESTABLISH_REND 9 /** Client-side circuit purpose: at the client, waiting for the service. */ #define CIRCUIT_PURPOSE_C_REND_READY 10 /** Client-side circuit purpose: at the client, waiting for the service, * INTRODUCE has been acknowledged. */ #define CIRCUIT_PURPOSE_C_REND_READY_INTRO_ACKED 11 /** Client-side circuit purpose: at the client, rendezvous established. */ #define CIRCUIT_PURPOSE_C_REND_JOINED 12 /** This circuit is used for build time measurement only */ #define CIRCUIT_PURPOSE_C_MEASURE_TIMEOUT 13 #define CIRCUIT_PURPOSE_C_MAX_ 13 /** Hidden-service-side circuit purpose: at the service, waiting for * introductions. */ #define CIRCUIT_PURPOSE_S_ESTABLISH_INTRO 14 /** Hidden-service-side circuit purpose: at the service, successfully * established intro. */ #define CIRCUIT_PURPOSE_S_INTRO 15 /** Hidden-service-side circuit purpose: at the service, connecting to rend * point. */ #define CIRCUIT_PURPOSE_S_CONNECT_REND 16 /** Hidden-service-side circuit purpose: at the service, rendezvous * established. */ #define CIRCUIT_PURPOSE_S_REND_JOINED 17 /** A testing circuit; not meant to be used for actual traffic. */ #define CIRCUIT_PURPOSE_TESTING 18 /** A controller made this circuit and Tor should not use it. */ #define CIRCUIT_PURPOSE_CONTROLLER 19 /** This circuit is used for path bias probing only */ #define CIRCUIT_PURPOSE_PATH_BIAS_TESTING 20 #define CIRCUIT_PURPOSE_MAX_ 20 /** A catch-all for unrecognized purposes. Currently we don't expect * to make or see any circuits with this purpose. */ #define CIRCUIT_PURPOSE_UNKNOWN 255 /** True iff the circuit purpose p is for a circuit that * originated at this node. */ #define CIRCUIT_PURPOSE_IS_ORIGIN(p) ((p)>CIRCUIT_PURPOSE_OR_MAX_) /** True iff the circuit purpose p is for a circuit that originated * here to serve as a client. (Hidden services don't count here.) */ #define CIRCUIT_PURPOSE_IS_CLIENT(p) \ ((p)> CIRCUIT_PURPOSE_OR_MAX_ && \ (p)<=CIRCUIT_PURPOSE_C_MAX_) /** True iff the circuit_t c is actually an origin_circuit_t. */ #define CIRCUIT_IS_ORIGIN(c) (CIRCUIT_PURPOSE_IS_ORIGIN((c)->purpose)) /** True iff the circuit purpose p is for an established rendezvous * circuit. */ #define CIRCUIT_PURPOSE_IS_ESTABLISHED_REND(p) \ ((p) == CIRCUIT_PURPOSE_C_REND_JOINED || \ (p) == CIRCUIT_PURPOSE_S_REND_JOINED) /** True iff the circuit_t c is actually an or_circuit_t */ #define CIRCUIT_IS_ORCIRC(c) (((circuit_t *)(c))->magic == OR_CIRCUIT_MAGIC) /** How many circuits do we want simultaneously in-progress to handle * a given stream? */ #define MIN_CIRCUITS_HANDLING_STREAM 2 /* These RELAY_COMMAND constants define values for relay cell commands, and * must match those defined in tor-spec.txt. */ #define RELAY_COMMAND_BEGIN 1 #define RELAY_COMMAND_DATA 2 #define RELAY_COMMAND_END 3 #define RELAY_COMMAND_CONNECTED 4 #define RELAY_COMMAND_SENDME 5 #define RELAY_COMMAND_EXTEND 6 #define RELAY_COMMAND_EXTENDED 7 #define RELAY_COMMAND_TRUNCATE 8 #define RELAY_COMMAND_TRUNCATED 9 #define RELAY_COMMAND_DROP 10 #define RELAY_COMMAND_RESOLVE 11 #define RELAY_COMMAND_RESOLVED 12 #define RELAY_COMMAND_BEGIN_DIR 13 #define RELAY_COMMAND_EXTEND2 14 #define RELAY_COMMAND_EXTENDED2 15 #define RELAY_COMMAND_ESTABLISH_INTRO 32 #define RELAY_COMMAND_ESTABLISH_RENDEZVOUS 33 #define RELAY_COMMAND_INTRODUCE1 34 #define RELAY_COMMAND_INTRODUCE2 35 #define RELAY_COMMAND_RENDEZVOUS1 36 #define RELAY_COMMAND_RENDEZVOUS2 37 #define RELAY_COMMAND_INTRO_ESTABLISHED 38 #define RELAY_COMMAND_RENDEZVOUS_ESTABLISHED 39 #define RELAY_COMMAND_INTRODUCE_ACK 40 /* Reasons why an OR connection is closed. */ #define END_OR_CONN_REASON_DONE 1 #define END_OR_CONN_REASON_REFUSED 2 /* connection refused */ #define END_OR_CONN_REASON_OR_IDENTITY 3 #define END_OR_CONN_REASON_CONNRESET 4 /* connection reset by peer */ #define END_OR_CONN_REASON_TIMEOUT 5 #define END_OR_CONN_REASON_NO_ROUTE 6 /* no route to host/net */ #define END_OR_CONN_REASON_IO_ERROR 7 /* read/write error */ #define END_OR_CONN_REASON_RESOURCE_LIMIT 8 /* sockets, buffers, etc */ #define END_OR_CONN_REASON_PT_MISSING 9 /* PT failed or not available */ #define END_OR_CONN_REASON_MISC 10 /* Reasons why we (or a remote OR) might close a stream. See tor-spec.txt for * documentation of these. The values must match. */ #define END_STREAM_REASON_MISC 1 #define END_STREAM_REASON_RESOLVEFAILED 2 #define END_STREAM_REASON_CONNECTREFUSED 3 #define END_STREAM_REASON_EXITPOLICY 4 #define END_STREAM_REASON_DESTROY 5 #define END_STREAM_REASON_DONE 6 #define END_STREAM_REASON_TIMEOUT 7 #define END_STREAM_REASON_NOROUTE 8 #define END_STREAM_REASON_HIBERNATING 9 #define END_STREAM_REASON_INTERNAL 10 #define END_STREAM_REASON_RESOURCELIMIT 11 #define END_STREAM_REASON_CONNRESET 12 #define END_STREAM_REASON_TORPROTOCOL 13 #define END_STREAM_REASON_NOTDIRECTORY 14 #define END_STREAM_REASON_ENTRYPOLICY 15 /* These high-numbered end reasons are not part of the official spec, * and are not intended to be put in relay end cells. They are here * to be more informative when sending back socks replies to the * application. */ /* XXXX 256 is no longer used; feel free to reuse it. */ /** We were unable to attach the connection to any circuit at all. */ /* XXXX the ways we use this one don't make a lot of sense. */ #define END_STREAM_REASON_CANT_ATTACH 257 /** We can't connect to any directories at all, so we killed our streams * before they can time out. */ #define END_STREAM_REASON_NET_UNREACHABLE 258 /** This is a SOCKS connection, and the client used (or misused) the SOCKS * protocol in a way we couldn't handle. */ #define END_STREAM_REASON_SOCKSPROTOCOL 259 /** This is a transparent proxy connection, but we can't extract the original * target address:port. */ #define END_STREAM_REASON_CANT_FETCH_ORIG_DEST 260 /** This is a connection on the NATD port, and the destination IP:Port was * either ill-formed or out-of-range. */ #define END_STREAM_REASON_INVALID_NATD_DEST 261 /** The target address is in a private network (like 127.0.0.1 or 10.0.0.1); * you don't want to do that over a randomly chosen exit */ #define END_STREAM_REASON_PRIVATE_ADDR 262 /** Bitwise-and this value with endreason to mask out all flags. */ #define END_STREAM_REASON_MASK 511 /** Bitwise-or this with the argument to control_event_stream_status * to indicate that the reason came from an END cell. */ #define END_STREAM_REASON_FLAG_REMOTE 512 /** Bitwise-or this with the argument to control_event_stream_status * to indicate that we already sent a CLOSED stream event. */ #define END_STREAM_REASON_FLAG_ALREADY_SENT_CLOSED 1024 /** Bitwise-or this with endreason to indicate that we already sent * a socks reply, and no further reply needs to be sent from * connection_mark_unattached_ap(). */ #define END_STREAM_REASON_FLAG_ALREADY_SOCKS_REPLIED 2048 /** Reason for remapping an AP connection's address: we have a cached * answer. */ #define REMAP_STREAM_SOURCE_CACHE 1 /** Reason for remapping an AP connection's address: the exit node told us an * answer. */ #define REMAP_STREAM_SOURCE_EXIT 2 /* 'type' values to use in RESOLVED cells. Specified in tor-spec.txt. */ #define RESOLVED_TYPE_HOSTNAME 0 #define RESOLVED_TYPE_IPV4 4 #define RESOLVED_TYPE_IPV6 6 #define RESOLVED_TYPE_ERROR_TRANSIENT 0xF0 #define RESOLVED_TYPE_ERROR 0xF1 /* Negative reasons are internal: we never send them in a DESTROY or TRUNCATE * call; they only go to the controller for tracking */ /* Closing introduction point that were opened in parallel. */ #define END_CIRC_REASON_IP_NOW_REDUNDANT -4 /** Our post-timeout circuit time measurement period expired. * We must give up now */ #define END_CIRC_REASON_MEASUREMENT_EXPIRED -3 /** We couldn't build a path for this circuit. */ #define END_CIRC_REASON_NOPATH -2 /** Catch-all "other" reason for closing origin circuits. */ #define END_CIRC_AT_ORIGIN -1 /* Reasons why we (or a remote OR) might close a circuit. See tor-spec.txt for * documentation of these. */ #define END_CIRC_REASON_MIN_ 0 #define END_CIRC_REASON_NONE 0 #define END_CIRC_REASON_TORPROTOCOL 1 #define END_CIRC_REASON_INTERNAL 2 #define END_CIRC_REASON_REQUESTED 3 #define END_CIRC_REASON_HIBERNATING 4 #define END_CIRC_REASON_RESOURCELIMIT 5 #define END_CIRC_REASON_CONNECTFAILED 6 #define END_CIRC_REASON_OR_IDENTITY 7 #define END_CIRC_REASON_CHANNEL_CLOSED 8 #define END_CIRC_REASON_FINISHED 9 #define END_CIRC_REASON_TIMEOUT 10 #define END_CIRC_REASON_DESTROYED 11 #define END_CIRC_REASON_NOSUCHSERVICE 12 #define END_CIRC_REASON_MAX_ 12 /** Bitwise-OR this with the argument to circuit_mark_for_close() or * control_event_circuit_status() to indicate that the reason was * passed through from a destroy or truncate cell. */ #define END_CIRC_REASON_FLAG_REMOTE 512 /** Length of 'y' portion of 'y.onion' URL. */ #define REND_SERVICE_ID_LEN_BASE32 16 /** Length of 'y.onion' including '.onion' URL. */ #define REND_SERVICE_ADDRESS_LEN (16+1+5) /** Length of a binary-encoded rendezvous service ID. */ #define REND_SERVICE_ID_LEN 10 /** Time period for which a v2 descriptor will be valid. */ #define REND_TIME_PERIOD_V2_DESC_VALIDITY (24*60*60) /** Time period within which two sets of v2 descriptors will be uploaded in * parallel. */ #define REND_TIME_PERIOD_OVERLAPPING_V2_DESCS (60*60) /** Number of non-consecutive replicas (i.e. distributed somewhere * in the ring) for a descriptor. */ #define REND_NUMBER_OF_NON_CONSECUTIVE_REPLICAS 2 /** Number of consecutive replicas for a descriptor. */ #define REND_NUMBER_OF_CONSECUTIVE_REPLICAS 3 /** Length of v2 descriptor ID (32 base32 chars = 160 bits). */ #define REND_DESC_ID_V2_LEN_BASE32 32 /** Length of the base32-encoded secret ID part of versioned hidden service * descriptors. */ #define REND_SECRET_ID_PART_LEN_BASE32 32 /** Length of the base32-encoded hash of an introduction point's * identity key. */ #define REND_INTRO_POINT_ID_LEN_BASE32 32 /** Length of the descriptor cookie that is used for client authorization * to hidden services. */ #define REND_DESC_COOKIE_LEN 16 /** Length of the base64-encoded descriptor cookie that is used for * exchanging client authorization between hidden service and client. */ #define REND_DESC_COOKIE_LEN_BASE64 22 /** Length of client identifier in encrypted introduction points for hidden * service authorization type 'basic'. */ #define REND_BASIC_AUTH_CLIENT_ID_LEN 4 /** Multiple of the number of clients to which the real number of clients * is padded with fake clients for hidden service authorization type * 'basic'. */ #define REND_BASIC_AUTH_CLIENT_MULTIPLE 16 /** Length of client entry consisting of client identifier and encrypted * session key for hidden service authorization type 'basic'. */ #define REND_BASIC_AUTH_CLIENT_ENTRY_LEN (REND_BASIC_AUTH_CLIENT_ID_LEN \ + CIPHER_KEY_LEN) /** Maximum size of v2 hidden service descriptors. */ #define REND_DESC_MAX_SIZE (20 * 1024) /** Legal characters for use in authorized client names for a hidden * service. */ #define REND_LEGAL_CLIENTNAME_CHARACTERS \ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789+-_" /** Maximum length of authorized client names for a hidden service. */ #define REND_CLIENTNAME_MAX_LEN 16 /** Length of the rendezvous cookie that is used to connect circuits at the * rendezvous point. */ #define REND_COOKIE_LEN DIGEST_LEN /** Client authorization type that a hidden service performs. */ typedef enum rend_auth_type_t { REND_NO_AUTH = 0, REND_BASIC_AUTH = 1, REND_STEALTH_AUTH = 2, } rend_auth_type_t; /** Client-side configuration of authorization for a hidden service. */ typedef struct rend_service_authorization_t { uint8_t descriptor_cookie[REND_DESC_COOKIE_LEN]; char onion_address[REND_SERVICE_ADDRESS_LEN+1]; rend_auth_type_t auth_type; } rend_service_authorization_t; /** Client- and server-side data that is used for hidden service connection * establishment. Not all fields contain data depending on where this struct * is used. */ typedef struct rend_data_t { /** Onion address (without the .onion part) that a client requests. */ char onion_address[REND_SERVICE_ID_LEN_BASE32+1]; /** Descriptor ID for each replicas computed from the onion address. If * the onion address is empty, this array MUST be empty. We keep them so * we know when to purge our entry in the last hsdir request table. */ char descriptor_id[REND_NUMBER_OF_NON_CONSECUTIVE_REPLICAS][DIGEST_LEN]; /** (Optional) descriptor cookie that is used by a client. */ char descriptor_cookie[REND_DESC_COOKIE_LEN]; /** Authorization type for accessing a service used by a client. */ rend_auth_type_t auth_type; /** Descriptor ID for a client request. The control port command HSFETCH * uses this. It's set if the descriptor query should only use this * descriptor ID. */ char desc_id_fetch[DIGEST_LEN]; /** Hash of the hidden service's PK used by a service. */ char rend_pk_digest[DIGEST_LEN]; /** Rendezvous cookie used by both, client and service. */ char rend_cookie[REND_COOKIE_LEN]; /** List of HSDir fingerprints on which this request has been sent to. * This contains binary identity digest of the directory. */ smartlist_t *hsdirs_fp; /** Number of streams associated with this rendezvous circuit. */ int nr_streams; } rend_data_t; /** Time interval for tracking replays of DH public keys received in * INTRODUCE2 cells. Used only to avoid launching multiple * simultaneous attempts to connect to the same rendezvous point. */ #define REND_REPLAY_TIME_INTERVAL (5 * 60) /** Used to indicate which way a cell is going on a circuit. */ typedef enum { CELL_DIRECTION_IN=1, /**< The cell is moving towards the origin. */ CELL_DIRECTION_OUT=2, /**< The cell is moving away from the origin. */ } cell_direction_t; /** Initial value for both sides of a circuit transmission window when the * circuit is initialized. Measured in cells. */ #define CIRCWINDOW_START 1000 #define CIRCWINDOW_START_MIN 100 #define CIRCWINDOW_START_MAX 1000 /** Amount to increment a circuit window when we get a circuit SENDME. */ #define CIRCWINDOW_INCREMENT 100 /** Initial value on both sides of a stream transmission window when the * stream is initialized. Measured in cells. */ #define STREAMWINDOW_START 500 /** Amount to increment a stream window when we get a stream SENDME. */ #define STREAMWINDOW_INCREMENT 50 /** Maximum number of queued cells on a circuit for which we are the * midpoint before we give up and kill it. This must be >= circwindow * to avoid killing innocent circuits, and >= circwindow*2 to give * leaky-pipe a chance of working someday. The ORCIRC_MAX_MIDDLE_KILL_THRESH * ratio controls the margin of error between emitting a warning and * killing the circuit. */ #define ORCIRC_MAX_MIDDLE_CELLS (CIRCWINDOW_START_MAX*2) /** Ratio of hard (circuit kill) to soft (warning) thresholds for the * ORCIRC_MAX_MIDDLE_CELLS tests. */ #define ORCIRC_MAX_MIDDLE_KILL_THRESH (1.1f) /* Cell commands. These values are defined in tor-spec.txt. */ #define CELL_PADDING 0 #define CELL_CREATE 1 #define CELL_CREATED 2 #define CELL_RELAY 3 #define CELL_DESTROY 4 #define CELL_CREATE_FAST 5 #define CELL_CREATED_FAST 6 #define CELL_VERSIONS 7 #define CELL_NETINFO 8 #define CELL_RELAY_EARLY 9 #define CELL_CREATE2 10 #define CELL_CREATED2 11 #define CELL_VPADDING 128 #define CELL_CERTS 129 #define CELL_AUTH_CHALLENGE 130 #define CELL_AUTHENTICATE 131 #define CELL_AUTHORIZE 132 #define CELL_COMMAND_MAX_ 132 /** How long to test reachability before complaining to the user. */ #define TIMEOUT_UNTIL_UNREACHABILITY_COMPLAINT (20*60) /** Legal characters in a nickname. */ #define LEGAL_NICKNAME_CHARACTERS \ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789" /** Name to use in client TLS certificates if no nickname is given. Once * Tor 0.1.2.x is obsolete, we can remove this. */ #define DEFAULT_CLIENT_NICKNAME "client" /** Name chosen by routers that don't configure nicknames */ #define UNNAMED_ROUTER_NICKNAME "Unnamed" /** Number of bytes in a SOCKS4 header. */ #define SOCKS4_NETWORK_LEN 8 /* * Relay payload: * Relay command [1 byte] * Recognized [2 bytes] * Stream ID [2 bytes] * Partial SHA-1 [4 bytes] * Length [2 bytes] * Relay payload [498 bytes] */ /** Number of bytes in a cell, minus cell header. */ #define CELL_PAYLOAD_SIZE 509 /** Number of bytes in a cell transmitted over the network, in the longest * form */ #define CELL_MAX_NETWORK_SIZE 514 /** Maximum length of a header on a variable-length cell. */ #define VAR_CELL_MAX_HEADER_SIZE 7 static int get_cell_network_size(int wide_circ_ids); static inline int get_cell_network_size(int wide_circ_ids) { return wide_circ_ids ? CELL_MAX_NETWORK_SIZE : CELL_MAX_NETWORK_SIZE - 2; } static int get_var_cell_header_size(int wide_circ_ids); static inline int get_var_cell_header_size(int wide_circ_ids) { return wide_circ_ids ? VAR_CELL_MAX_HEADER_SIZE : VAR_CELL_MAX_HEADER_SIZE - 2; } static int get_circ_id_size(int wide_circ_ids); static inline int get_circ_id_size(int wide_circ_ids) { return wide_circ_ids ? 4 : 2; } /** Number of bytes in a relay cell's header (not including general cell * header). */ #define RELAY_HEADER_SIZE (1+2+2+4+2) /** Largest number of bytes that can fit in a relay cell payload. */ #define RELAY_PAYLOAD_SIZE (CELL_PAYLOAD_SIZE-RELAY_HEADER_SIZE) /** Identifies a circuit on an or_connection */ typedef uint32_t circid_t; /** Identifies a stream on a circuit */ typedef uint16_t streamid_t; /* channel_t typedef; struct channel_s is in channel.h */ typedef struct channel_s channel_t; /* channel_listener_t typedef; struct channel_listener_s is in channel.h */ typedef struct channel_listener_s channel_listener_t; /* channel states for channel_t */ typedef enum { /* * Closed state - channel is inactive * * Permitted transitions from: * - CHANNEL_STATE_CLOSING * Permitted transitions to: * - CHANNEL_STATE_OPENING */ CHANNEL_STATE_CLOSED = 0, /* * Opening state - channel is trying to connect * * Permitted transitions from: * - CHANNEL_STATE_CLOSED * Permitted transitions to: * - CHANNEL_STATE_CLOSING * - CHANNEL_STATE_ERROR * - CHANNEL_STATE_OPEN */ CHANNEL_STATE_OPENING, /* * Open state - channel is active and ready for use * * Permitted transitions from: * - CHANNEL_STATE_MAINT * - CHANNEL_STATE_OPENING * Permitted transitions to: * - CHANNEL_STATE_CLOSING * - CHANNEL_STATE_ERROR * - CHANNEL_STATE_MAINT */ CHANNEL_STATE_OPEN, /* * Maintenance state - channel is temporarily offline for subclass specific * maintenance activities such as TLS renegotiation. * * Permitted transitions from: * - CHANNEL_STATE_OPEN * Permitted transitions to: * - CHANNEL_STATE_CLOSING * - CHANNEL_STATE_ERROR * - CHANNEL_STATE_OPEN */ CHANNEL_STATE_MAINT, /* * Closing state - channel is shutting down * * Permitted transitions from: * - CHANNEL_STATE_MAINT * - CHANNEL_STATE_OPEN * Permitted transitions to: * - CHANNEL_STATE_CLOSED, * - CHANNEL_STATE_ERROR */ CHANNEL_STATE_CLOSING, /* * Error state - channel has experienced a permanent error * * Permitted transitions from: * - CHANNEL_STATE_CLOSING * - CHANNEL_STATE_MAINT * - CHANNEL_STATE_OPENING * - CHANNEL_STATE_OPEN * Permitted transitions to: * - None */ CHANNEL_STATE_ERROR, /* * Placeholder for maximum state value */ CHANNEL_STATE_LAST } channel_state_t; /* channel listener states for channel_listener_t */ typedef enum { /* * Closed state - channel listener is inactive * * Permitted transitions from: * - CHANNEL_LISTENER_STATE_CLOSING * Permitted transitions to: * - CHANNEL_LISTENER_STATE_LISTENING */ CHANNEL_LISTENER_STATE_CLOSED = 0, /* * Listening state - channel listener is listening for incoming * connections * * Permitted transitions from: * - CHANNEL_LISTENER_STATE_CLOSED * Permitted transitions to: * - CHANNEL_LISTENER_STATE_CLOSING * - CHANNEL_LISTENER_STATE_ERROR */ CHANNEL_LISTENER_STATE_LISTENING, /* * Closing state - channel listener is shutting down * * Permitted transitions from: * - CHANNEL_LISTENER_STATE_LISTENING * Permitted transitions to: * - CHANNEL_LISTENER_STATE_CLOSED, * - CHANNEL_LISTENER_STATE_ERROR */ CHANNEL_LISTENER_STATE_CLOSING, /* * Error state - channel listener has experienced a permanent error * * Permitted transitions from: * - CHANNEL_STATE_CLOSING * - CHANNEL_STATE_LISTENING * Permitted transitions to: * - None */ CHANNEL_LISTENER_STATE_ERROR, /* * Placeholder for maximum state value */ CHANNEL_LISTENER_STATE_LAST } channel_listener_state_t; /* TLS channel stuff */ typedef struct channel_tls_s channel_tls_t; /* circuitmux_t typedef; struct circuitmux_s is in circuitmux.h */ typedef struct circuitmux_s circuitmux_t; /** Parsed onion routing cell. All communication between nodes * is via cells. */ typedef struct cell_t { circid_t circ_id; /**< Circuit which received the cell. */ uint8_t command; /**< Type of the cell: one of CELL_PADDING, CELL_CREATE, * CELL_DESTROY, etc */ uint8_t payload[CELL_PAYLOAD_SIZE]; /**< Cell body. */ } cell_t; /** Parsed variable-length onion routing cell. */ typedef struct var_cell_t { /** Type of the cell: CELL_VERSIONS, etc. */ uint8_t command; /** Circuit thich received the cell */ circid_t circ_id; /** Number of bytes actually stored in payload */ uint16_t payload_len; /** Payload of this cell */ uint8_t payload[FLEXIBLE_ARRAY_MEMBER]; } var_cell_t; /** A parsed Extended ORPort message. */ typedef struct ext_or_cmd_t { uint16_t cmd; /** Command type */ uint16_t len; /** Body length */ char body[FLEXIBLE_ARRAY_MEMBER]; /** Message body */ } ext_or_cmd_t; /** A cell as packed for writing to the network. */ typedef struct packed_cell_t { /** Next cell queued on this circuit. */ TOR_SIMPLEQ_ENTRY(packed_cell_t) next; char body[CELL_MAX_NETWORK_SIZE]; /**< Cell as packed for network. */ uint32_t inserted_time; /**< Time (in milliseconds since epoch, with high * bits truncated) when this cell was inserted. */ } packed_cell_t; /** A queue of cells on a circuit, waiting to be added to the * or_connection_t's outbuf. */ typedef struct cell_queue_t { /** Linked list of packed_cell_t*/ TOR_SIMPLEQ_HEAD(cell_simpleq, packed_cell_t) head; int n; /**< The number of cells in the queue. */ } cell_queue_t; /** Beginning of a RELAY cell payload. */ typedef struct { uint8_t command; /**< The end-to-end relay command. */ uint16_t recognized; /**< Used to tell whether cell is for us. */ streamid_t stream_id; /**< Which stream is this cell associated with? */ char integrity[4]; /**< Used to tell whether cell is corrupted. */ uint16_t length; /**< How long is the payload body? */ } relay_header_t; typedef struct buf_t buf_t; typedef struct socks_request_t socks_request_t; #define buf_t buf_t typedef struct entry_port_cfg_t { /* Client port types (socks, dns, trans, natd) only: */ uint8_t isolation_flags; /**< Zero or more isolation flags */ int session_group; /**< A session group, or -1 if this port is not in a * session group. */ /* Socks only: */ /** When both no-auth and user/pass are advertised by a SOCKS client, select * no-auth. */ unsigned int socks_prefer_no_auth : 1; /** When ISO_SOCKSAUTH is in use, Keep-Alive circuits indefinitely. */ unsigned int socks_iso_keep_alive : 1; /* Client port types only: */ unsigned int ipv4_traffic : 1; unsigned int ipv6_traffic : 1; unsigned int prefer_ipv6 : 1; unsigned int dns_request : 1; unsigned int onion_traffic : 1; /** For a socks listener: should we cache IPv4/IPv6 DNS information that * exit nodes tell us? * * @{ */ unsigned int cache_ipv4_answers : 1; unsigned int cache_ipv6_answers : 1; /** @} */ /** For a socks listeners: if we find an answer in our client-side DNS cache, * should we use it? * * @{ */ unsigned int use_cached_ipv4_answers : 1; unsigned int use_cached_ipv6_answers : 1; /** @} */ /** For socks listeners: When we can automap an address to IPv4 or IPv6, * do we prefer IPv6? */ unsigned int prefer_ipv6_virtaddr : 1; } entry_port_cfg_t; typedef struct server_port_cfg_t { /* Server port types (or, dir) only: */ unsigned int no_advertise : 1; unsigned int no_listen : 1; unsigned int all_addrs : 1; unsigned int bind_ipv4_only : 1; unsigned int bind_ipv6_only : 1; } server_port_cfg_t; /* Values for connection_t.magic: used to make sure that downcasts (casts from * connection_t to foo_connection_t) are safe. */ #define BASE_CONNECTION_MAGIC 0x7C3C304Eu #define OR_CONNECTION_MAGIC 0x7D31FF03u #define EDGE_CONNECTION_MAGIC 0xF0374013u #define ENTRY_CONNECTION_MAGIC 0xbb4a5703 #define DIR_CONNECTION_MAGIC 0x9988ffeeu #define CONTROL_CONNECTION_MAGIC 0x8abc765du #define LISTENER_CONNECTION_MAGIC 0x1a1ac741u /** Description of a connection to another host or process, and associated * data. * * A connection is named based on what it's connected to -- an "OR * connection" has a Tor node on the other end, an "exit * connection" has a website or other server on the other end, and an * "AP connection" has an application proxy (and thus a user) on the * other end. * * Every connection has a type and a state. Connections never change * their type, but can go through many state changes in their lifetime. * * Every connection has two associated input and output buffers. * Listeners don't use them. For non-listener connections, incoming * data is appended to conn->inbuf, and outgoing data is taken from * conn->outbuf. Connections differ primarily in the functions called * to fill and drain these buffers. */ typedef struct connection_t { uint32_t magic; /**< For memory debugging: must equal one of * *_CONNECTION_MAGIC. */ uint8_t state; /**< Current state of this connection. */ unsigned int type:5; /**< What kind of connection is this? */ unsigned int purpose:5; /**< Only used for DIR and EXIT types currently. */ /* The next fields are all one-bit booleans. Some are only applicable to * connection subtypes, but we hold them here anyway, to save space. */ unsigned int read_blocked_on_bw:1; /**< Boolean: should we start reading * again once the bandwidth throttler allows it? */ unsigned int write_blocked_on_bw:1; /**< Boolean: should we start writing * again once the bandwidth throttler allows * writes? */ unsigned int hold_open_until_flushed:1; /**< Despite this connection's being * marked for close, do we flush it * before closing it? */ unsigned int inbuf_reached_eof:1; /**< Boolean: did read() return 0 on this * conn? */ /** Set to 1 when we're inside connection_flushed_some to keep us from * calling connection_handle_write() recursively. */ unsigned int in_flushed_some:1; /** True if connection_handle_write is currently running on this connection. */ unsigned int in_connection_handle_write:1; /* For linked connections: */ unsigned int linked:1; /**< True if there is, or has been, a linked_conn. */ /** True iff we'd like to be notified about read events from the * linked conn. */ unsigned int reading_from_linked_conn:1; /** True iff we're willing to write to the linked conn. */ unsigned int writing_to_linked_conn:1; /** True iff we're currently able to read on the linked conn, and our * read_event should be made active with libevent. */ unsigned int active_on_link:1; /** True iff we've called connection_close_immediate() on this linked * connection. */ unsigned int linked_conn_is_closed:1; /** CONNECT/SOCKS proxy client handshake state (for outgoing connections). */ unsigned int proxy_state:4; /** Our socket; set to TOR_INVALID_SOCKET if this connection is closed, * or has no socket. */ tor_socket_t s; int conn_array_index; /**< Index into the global connection array. */ struct event *read_event; /**< Libevent event structure. */ struct event *write_event; /**< Libevent event structure. */ buf_t *inbuf; /**< Buffer holding data read over this connection. */ buf_t *outbuf; /**< Buffer holding data to write over this connection. */ size_t outbuf_flushlen; /**< How much data should we try to flush from the * outbuf? */ time_t timestamp_lastread; /**< When was the last time libevent said we could * read? */ time_t timestamp_lastwritten; /**< When was the last time libevent said we * could write? */ time_t timestamp_created; /**< When was this connection_t created? */ int socket_family; /**< Address family of this connection's socket. Usually * AF_INET, but it can also be AF_UNIX, or AF_INET6 */ tor_addr_t addr; /**< IP that socket "s" is directly connected to; * may be the IP address for a proxy or pluggable transport, * see "address" for the address of the final destination. */ uint16_t port; /**< If non-zero, port that socket "s" is directly connected * to; may be the port for a proxy or pluggable transport, * see "address" for the port at the final destination. */ uint16_t marked_for_close; /**< Should we close this conn on the next * iteration of the main loop? (If true, holds * the line number where this connection was * marked.) */ const char *marked_for_close_file; /**< For debugging: in which file were * we marked for close? */ char *address; /**< FQDN (or IP) and port of the final destination for this * connection; this is always the remote address, it is * passed to a proxy or pluggable transport if one in use. * See "addr" and "port" for the address that socket "s" is * directly connected to. * strdup into this, because free_connection() frees it. */ /** Another connection that's connected to this one in lieu of a socket. */ struct connection_t *linked_conn; /** Unique identifier for this connection on this Tor instance. */ uint64_t global_identifier; /** Bytes read since last call to control_event_conn_bandwidth_used(). * Only used if we're configured to emit CONN_BW events. */ uint32_t n_read_conn_bw; /** Bytes written since last call to control_event_conn_bandwidth_used(). * Only used if we're configured to emit CONN_BW events. */ uint32_t n_written_conn_bw; } connection_t; /** Subtype of connection_t; used for a listener socket. */ typedef struct listener_connection_t { connection_t base_; /** If the connection is a CONN_TYPE_AP_DNS_LISTENER, this field points * to the evdns_server_port it uses to listen to and answer connections. */ struct evdns_server_port *dns_server_port; entry_port_cfg_t entry_cfg; } listener_connection_t; /** Minimum length of the random part of an AUTH_CHALLENGE cell. */ #define OR_AUTH_CHALLENGE_LEN 32 /** * @name Certificate types for CERTS cells. * * These values are defined by the protocol, and affect how an X509 * certificate in a CERTS cell is interpreted and used. * * @{ */ /** A certificate that authenticates a TLS link key. The subject key * must match the key used in the TLS handshake; it must be signed by * the identity key. */ #define OR_CERT_TYPE_TLS_LINK 1 /** A self-signed identity certificate. The subject key must be a * 1024-bit RSA key. */ #define OR_CERT_TYPE_ID_1024 2 /** A certificate that authenticates a key used in an AUTHENTICATE cell * in the v3 handshake. The subject key must be a 1024-bit RSA key; it * must be signed by the identity key */ #define OR_CERT_TYPE_AUTH_1024 3 /* DOCDOC */ #define OR_CERT_TYPE_RSA_ED_CROSSCERT 7 /**@}*/ /** The one currently supported type of AUTHENTICATE cell. It contains * a bunch of structures signed with an RSA1024 key. The signed * structures include a HMAC using negotiated TLS secrets, and a digest * of all cells sent or received before the AUTHENTICATE cell (including * the random server-generated AUTH_CHALLENGE cell). */ #define AUTHTYPE_RSA_SHA256_TLSSECRET 1 /** The length of the part of the AUTHENTICATE cell body that the client and * server can generate independently (when using RSA_SHA256_TLSSECRET). It * contains everything except the client's timestamp, the client's randomly * generated nonce, and the signature. */ #define V3_AUTH_FIXED_PART_LEN (8+(32*6)) /** The length of the part of the AUTHENTICATE cell body that the client * signs. */ #define V3_AUTH_BODY_LEN (V3_AUTH_FIXED_PART_LEN + 8 + 16) /** Stores flags and information related to the portion of a v2/v3 Tor OR * connection handshake that happens after the TLS handshake is finished. */ typedef struct or_handshake_state_t { /** When was the VERSIONS cell sent on this connection? Used to get * an estimate of the skew in the returning NETINFO reply. */ time_t sent_versions_at; /** True iff we originated this connection */ unsigned int started_here : 1; /** True iff we have received and processed a VERSIONS cell. */ unsigned int received_versions : 1; /** True iff we have received and processed an AUTH_CHALLENGE cell */ unsigned int received_auth_challenge : 1; /** True iff we have received and processed a CERTS cell. */ unsigned int received_certs_cell : 1; /** True iff we have received and processed an AUTHENTICATE cell */ unsigned int received_authenticate : 1; /* True iff we've received valid authentication to some identity. */ unsigned int authenticated : 1; /* True iff we have sent a netinfo cell */ unsigned int sent_netinfo : 1; /** True iff we should feed outgoing cells into digest_sent and * digest_received respectively. * * From the server's side of the v3 handshake, we want to capture everything * from the VERSIONS cell through and including the AUTH_CHALLENGE cell. * From the client's, we want to capture everything from the VERSIONS cell * through but *not* including the AUTHENTICATE cell. * * @{ */ unsigned int digest_sent_data : 1; unsigned int digest_received_data : 1; /**@}*/ /** Identity digest that we have received and authenticated for our peer * on this connection. */ uint8_t authenticated_peer_id[DIGEST_LEN]; /** Digests of the cells that we have sent or received as part of a V3 * handshake. Used for making and checking AUTHENTICATE cells. * * @{ */ crypto_digest_t *digest_sent; crypto_digest_t *digest_received; /** @} */ /** Certificates that a connection initiator sent us in a CERTS cell; we're * holding on to them until we get an AUTHENTICATE cell. * * @{ */ /** The cert for the key that's supposed to sign the AUTHENTICATE cell */ tor_x509_cert_t *auth_cert; /** A self-signed identity certificate */ tor_x509_cert_t *id_cert; /**@}*/ } or_handshake_state_t; /** Length of Extended ORPort connection identifier. */ #define EXT_OR_CONN_ID_LEN DIGEST_LEN /* 20 */ /* * OR_CONN_HIGHWATER and OR_CONN_LOWWATER moved from connection_or.c so * channeltls.c can see them too. */ /** When adding cells to an OR connection's outbuf, keep adding until the * outbuf is at least this long, or we run out of cells. */ #define OR_CONN_HIGHWATER (32*1024) /** Add cells to an OR connection's outbuf whenever the outbuf's data length * drops below this size. */ #define OR_CONN_LOWWATER (16*1024) /** Subtype of connection_t for an "OR connection" -- that is, one that speaks * cells over TLS. */ typedef struct or_connection_t { connection_t base_; /** Hash of the public RSA key for the other side's identity key, or zeroes * if the other side hasn't shown us a valid identity key. */ char identity_digest[DIGEST_LEN]; /** Extended ORPort connection identifier. */ char *ext_or_conn_id; /** This is the ClientHash value we expect to receive from the * client during the Extended ORPort authentication protocol. We * compute it upon receiving the ClientNoce from the client, and we * compare it with the acual ClientHash value sent by the * client. */ char *ext_or_auth_correct_client_hash; /** String carrying the name of the pluggable transport * (e.g. "obfs2") that is obfuscating this connection. If no * pluggable transports are used, it's NULL. */ char *ext_or_transport; char *nickname; /**< Nickname of OR on other side (if any). */ tor_tls_t *tls; /**< TLS connection state. */ int tls_error; /**< Last tor_tls error code. */ /** When we last used this conn for any client traffic. If not * recent, we can rate limit it further. */ /* Channel using this connection */ channel_tls_t *chan; tor_addr_t real_addr; /**< The actual address that this connection came from * or went to. The addr field is prone to * getting overridden by the address from the router * descriptor matching identity_digest. */ /** Should this connection be used for extending circuits to the server * matching the identity_digest field? Set to true if we're pretty * sure we aren't getting MITMed, either because we're connected to an * address listed in a server descriptor, or because an authenticated * NETINFO cell listed the address we're connected to as recognized. */ unsigned int is_canonical:1; /** True iff we have decided that the other end of this connection * is a client. Connections with this flag set should never be used * to satisfy an EXTEND request. */ unsigned int is_connection_with_client:1; /** True iff this is an outgoing connection. */ unsigned int is_outgoing:1; unsigned int proxy_type:2; /**< One of PROXY_NONE...PROXY_SOCKS5 */ unsigned int wide_circ_ids:1; /** True iff this connection has had its bootstrap failure logged with * control_event_bootstrap_problem. */ unsigned int have_noted_bootstrap_problem:1; uint16_t link_proto; /**< What protocol version are we using? 0 for * "none negotiated yet." */ uint16_t idle_timeout; /**< How long can this connection sit with no * circuits on it before we close it? Based on * IDLE_CIRCUIT_TIMEOUT_{NON,}CANONICAL and * on is_canonical, randomized. */ or_handshake_state_t *handshake_state; /**< If we are setting this connection * up, state information to do so. */ time_t timestamp_lastempty; /**< When was the outbuf last completely empty?*/ /* bandwidth* and *_bucket only used by ORs in OPEN state: */ int bandwidthrate; /**< Bytes/s added to the bucket. (OPEN ORs only.) */ int bandwidthburst; /**< Max bucket size for this conn. (OPEN ORs only.) */ int read_bucket; /**< When this hits 0, stop receiving. Every second we * add 'bandwidthrate' to this, capping it at * bandwidthburst. (OPEN ORs only) */ int write_bucket; /**< When this hits 0, stop writing. Like read_bucket. */ struct or_connection_t *next_with_same_id; /**< Next connection with same * identity digest as this one. */ /** Last emptied read token bucket in msec since midnight; only used if * TB_EMPTY events are enabled. */ uint32_t read_emptied_time; /** Last emptied write token bucket in msec since midnight; only used if * TB_EMPTY events are enabled. */ uint32_t write_emptied_time; /* * Count the number of bytes flushed out on this orconn, and the number of * bytes TLS actually sent - used for overhead estimation for scheduling. */ uint64_t bytes_xmitted, bytes_xmitted_by_tls; } or_connection_t; /** Subtype of connection_t for an "edge connection" -- that is, an entry (ap) * connection, or an exit. */ typedef struct edge_connection_t { connection_t base_; struct edge_connection_t *next_stream; /**< Points to the next stream at this * edge, if any */ int package_window; /**< How many more relay cells can I send into the * circuit? */ int deliver_window; /**< How many more relay cells can end at me? */ struct circuit_t *on_circuit; /**< The circuit (if any) that this edge * connection is using. */ /** A pointer to which node in the circ this conn exits at. Set for AP * connections and for hidden service exit connections. */ struct crypt_path_t *cpath_layer; /** What rendezvous service are we querying for (if an AP) or providing (if * an exit)? */ rend_data_t *rend_data; uint32_t address_ttl; /**< TTL for address-to-addr mapping on exit * connection. Exit connections only. */ uint32_t begincell_flags; /** Flags sent or received in the BEGIN cell * for this connection */ streamid_t stream_id; /**< The stream ID used for this edge connection on its * circuit */ /** The reason why this connection is closing; passed to the controller. */ uint16_t end_reason; /** Bytes read since last call to control_event_stream_bandwidth_used() */ uint32_t n_read; /** Bytes written since last call to control_event_stream_bandwidth_used() */ uint32_t n_written; /** True iff this connection is for a DNS request only. */ unsigned int is_dns_request:1; /** True iff this connection is for a PTR DNS request. (exit only) */ unsigned int is_reverse_dns_lookup:1; unsigned int edge_has_sent_end:1; /**< For debugging; only used on edge * connections. Set once we've set the stream end, * and check in connection_about_to_close_connection(). */ /** True iff we've blocked reading until the circuit has fewer queued * cells. */ unsigned int edge_blocked_on_circ:1; /** Unique ID for directory requests; this used to be in connection_t, but * that's going away and being used on channels instead. We still tag * edge connections with dirreq_id from circuits, so it's copied here. */ uint64_t dirreq_id; } edge_connection_t; /** Subtype of edge_connection_t for an "entry connection" -- that is, a SOCKS * connection, a DNS request, a TransPort connection or a NATD connection */ typedef struct entry_connection_t { edge_connection_t edge_; /** Nickname of planned exit node -- used with .exit support. */ char *chosen_exit_name; socks_request_t *socks_request; /**< SOCKS structure describing request (AP * only.) */ /* === Isolation related, AP only. === */ entry_port_cfg_t entry_cfg; /** AP only: The newnym epoch in which we created this connection. */ unsigned nym_epoch; /** AP only: The original requested address before we rewrote it. */ char *original_dest_address; /* Other fields to isolate on already exist. The ClientAddr is addr. The ClientProtocol is a combination of type and socks_request-> socks_version. SocksAuth is socks_request->username/password. DestAddr is in socks_request->address. */ /** Number of times we've reassigned this application connection to * a new circuit. We keep track because the timeout is longer if we've * already retried several times. */ uint8_t num_socks_retries; /** For AP connections only: buffer for data that we have sent * optimistically, which we might need to re-send if we have to * retry this connection. */ buf_t *pending_optimistic_data; /* For AP connections only: buffer for data that we previously sent * optimistically which we are currently re-sending as we retry this * connection. */ buf_t *sending_optimistic_data; /** If this is a DNSPort connection, this field holds the pending DNS * request that we're going to try to answer. */ struct evdns_server_request *dns_server_request; #define DEBUGGING_17659 #ifdef DEBUGGING_17659 uint16_t marked_pending_circ_line; const char *marked_pending_circ_file; #endif #define NUM_CIRCUITS_LAUNCHED_THRESHOLD 10 /** Number of times we've launched a circuit to handle this stream. If * it gets too high, that could indicate an inconsistency between our * "launch a circuit to handle this stream" logic and our "attach our * stream to one of the available circuits" logic. */ unsigned int num_circuits_launched:4; /** True iff this stream must attach to a one-hop circuit (e.g. for * begin_dir). */ unsigned int want_onehop:1; /** True iff this stream should use a BEGIN_DIR relay command to establish * itself rather than BEGIN (either via onehop or via a whole circuit). */ unsigned int use_begindir:1; /** For AP connections only. If 1, and we fail to reach the chosen exit, * stop requiring it. */ unsigned int chosen_exit_optional:1; /** For AP connections only. If non-zero, this exit node was picked as * a result of the TrackHostExit, and the value decrements every time * we fail to complete a circuit to our chosen exit -- if it reaches * zero, abandon the associated mapaddress. */ unsigned int chosen_exit_retries:3; /** True iff this is an AP connection that came from a transparent or * NATd connection */ unsigned int is_transparent_ap:1; /** For AP connections only: Set if this connection's target exit node * allows optimistic data (that is, data sent on this stream before * the exit has sent a CONNECTED cell) and we have chosen to use it. */ unsigned int may_use_optimistic_data : 1; /** Are we a socks SocksSocket listener? */ unsigned int is_socks_socket:1; } entry_connection_t; typedef enum { DIR_SPOOL_NONE=0, DIR_SPOOL_SERVER_BY_DIGEST, DIR_SPOOL_SERVER_BY_FP, DIR_SPOOL_EXTRA_BY_DIGEST, DIR_SPOOL_EXTRA_BY_FP, DIR_SPOOL_CACHED_DIR, DIR_SPOOL_NETWORKSTATUS, DIR_SPOOL_MICRODESC, /* NOTE: if we add another entry, add another bit. */ } dir_spool_source_t; #define dir_spool_source_bitfield_t ENUM_BF(dir_spool_source_t) /** Subtype of connection_t for an "directory connection" -- that is, an HTTP * connection to retrieve or serve directory material. */ typedef struct dir_connection_t { connection_t base_; /** Which 'resource' did we ask the directory for? This is typically the part * of the URL string that defines, relative to the directory conn purpose, * what thing we want. For example, in router descriptor downloads by * descriptor digest, it contains "d/", then one ore more +-separated * fingerprints. **/ char *requested_resource; unsigned int dirconn_direct:1; /**< Is this dirconn direct, or via Tor? */ /* Used only for server sides of some dir connections, to implement * "spooling" of directory material to the outbuf. Otherwise, we'd have * to append everything to the outbuf in one enormous chunk. */ /** What exactly are we spooling right now? */ dir_spool_source_bitfield_t dir_spool_src : 3; /** If we're fetching descriptors, what router purpose shall we assign * to them? */ uint8_t router_purpose; /** List of fingerprints for networkstatuses or descriptors to be spooled. */ smartlist_t *fingerprint_stack; /** A cached_dir_t object that we're currently spooling out */ struct cached_dir_t *cached_dir; /** The current offset into cached_dir. */ off_t cached_dir_offset; /** The zlib object doing on-the-fly compression for spooled data. */ tor_zlib_state_t *zlib_state; /** What rendezvous service are we querying for? */ rend_data_t *rend_data; char identity_digest[DIGEST_LEN]; /**< Hash of the public RSA key for * the directory server's signing key. */ /** Unique ID for directory requests; this used to be in connection_t, but * that's going away and being used on channels instead. The dirserver still * needs this for the incoming side, so it's moved here. */ uint64_t dirreq_id; } dir_connection_t; /** Subtype of connection_t for an connection to a controller. */ typedef struct control_connection_t { connection_t base_; uint64_t event_mask; /**< Bitfield: which events does this controller * care about? * EVENT_MAX_ is >31, so we need a 64 bit mask */ /** True if we have sent a protocolinfo reply on this connection. */ unsigned int have_sent_protocolinfo:1; /** True if we have received a takeownership command on this * connection. */ unsigned int is_owning_control_connection:1; /** List of ephemeral onion services belonging to this connection. */ smartlist_t *ephemeral_onion_services; /** If we have sent an AUTHCHALLENGE reply on this connection and * have not received a successful AUTHENTICATE command, points to * the value which the client must send to authenticate itself; * otherwise, NULL. */ char *safecookie_client_hash; /** Amount of space allocated in incoming_cmd. */ uint32_t incoming_cmd_len; /** Number of bytes currently stored in incoming_cmd. */ uint32_t incoming_cmd_cur_len; /** A control command that we're reading from the inbuf, but which has not * yet arrived completely. */ char *incoming_cmd; } control_connection_t; /** Cast a connection_t subtype pointer to a connection_t **/ #define TO_CONN(c) (&(((c)->base_))) /** Helper macro: Given a pointer to to.base_, of type from*, return &to. */ #define DOWNCAST(to, ptr) ((to*)SUBTYPE_P(ptr, to, base_)) /** Cast a entry_connection_t subtype pointer to a edge_connection_t **/ #define ENTRY_TO_EDGE_CONN(c) (&(((c))->edge_)) /** Cast a entry_connection_t subtype pointer to a connection_t **/ #define ENTRY_TO_CONN(c) (TO_CONN(ENTRY_TO_EDGE_CONN(c))) /** Convert a connection_t* to an or_connection_t*; assert if the cast is * invalid. */ static or_connection_t *TO_OR_CONN(connection_t *); /** Convert a connection_t* to a dir_connection_t*; assert if the cast is * invalid. */ static dir_connection_t *TO_DIR_CONN(connection_t *); /** Convert a connection_t* to an edge_connection_t*; assert if the cast is * invalid. */ static edge_connection_t *TO_EDGE_CONN(connection_t *); /** Convert a connection_t* to an entry_connection_t*; assert if the cast is * invalid. */ static entry_connection_t *TO_ENTRY_CONN(connection_t *); /** Convert a edge_connection_t* to an entry_connection_t*; assert if the cast * is invalid. */ static entry_connection_t *EDGE_TO_ENTRY_CONN(edge_connection_t *); /** Convert a connection_t* to an control_connection_t*; assert if the cast is * invalid. */ static control_connection_t *TO_CONTROL_CONN(connection_t *); /** Convert a connection_t* to an listener_connection_t*; assert if the cast is * invalid. */ static listener_connection_t *TO_LISTENER_CONN(connection_t *); static inline or_connection_t *TO_OR_CONN(connection_t *c) { tor_assert(c->magic == OR_CONNECTION_MAGIC); return DOWNCAST(or_connection_t, c); } static inline dir_connection_t *TO_DIR_CONN(connection_t *c) { tor_assert(c->magic == DIR_CONNECTION_MAGIC); return DOWNCAST(dir_connection_t, c); } static inline edge_connection_t *TO_EDGE_CONN(connection_t *c) { tor_assert(c->magic == EDGE_CONNECTION_MAGIC || c->magic == ENTRY_CONNECTION_MAGIC); return DOWNCAST(edge_connection_t, c); } static inline entry_connection_t *TO_ENTRY_CONN(connection_t *c) { tor_assert(c->magic == ENTRY_CONNECTION_MAGIC); return (entry_connection_t*) SUBTYPE_P(c, entry_connection_t, edge_.base_); } static inline entry_connection_t *EDGE_TO_ENTRY_CONN(edge_connection_t *c) { tor_assert(c->base_.magic == ENTRY_CONNECTION_MAGIC); return (entry_connection_t*) SUBTYPE_P(c, entry_connection_t, edge_); } static inline control_connection_t *TO_CONTROL_CONN(connection_t *c) { tor_assert(c->magic == CONTROL_CONNECTION_MAGIC); return DOWNCAST(control_connection_t, c); } static inline listener_connection_t *TO_LISTENER_CONN(connection_t *c) { tor_assert(c->magic == LISTENER_CONNECTION_MAGIC); return DOWNCAST(listener_connection_t, c); } /** What action type does an address policy indicate: accept or reject? */ typedef enum { ADDR_POLICY_ACCEPT=1, ADDR_POLICY_REJECT=2, } addr_policy_action_t; #define addr_policy_action_bitfield_t ENUM_BF(addr_policy_action_t) /** A reference-counted address policy rule. */ typedef struct addr_policy_t { int refcnt; /**< Reference count */ /** What to do when the policy matches.*/ addr_policy_action_bitfield_t policy_type:2; unsigned int is_private:1; /**< True iff this is the pseudo-address, * "private". */ unsigned int is_canonical:1; /**< True iff this policy is the canonical * copy (stored in a hash table to avoid * duplication of common policies) */ maskbits_t maskbits; /**< Accept/reject all addresses a such that the * first maskbits bits of a match * addr. */ /** Base address to accept or reject. * * Note that wildcards are treated * differntly depending on address family. An AF_UNSPEC address means * "All addresses, IPv4 or IPv6." An AF_INET address with maskbits==0 means * "All IPv4 addresses" and an AF_INET6 address with maskbits == 0 means * "All IPv6 addresses". **/ tor_addr_t addr; uint16_t prt_min; /**< Lowest port number to accept/reject. */ uint16_t prt_max; /**< Highest port number to accept/reject. */ } addr_policy_t; /** A cached_dir_t represents a cacheable directory object, along with its * compressed form. */ typedef struct cached_dir_t { char *dir; /**< Contents of this object, NUL-terminated. */ char *dir_z; /**< Compressed contents of this object. */ size_t dir_len; /**< Length of dir (not counting its NUL). */ size_t dir_z_len; /**< Length of dir_z. */ time_t published; /**< When was this object published. */ common_digests_t digests; /**< Digests of this object (networkstatus only) */ int refcnt; /**< Reference count for this cached_dir_t. */ } cached_dir_t; /** Enum used to remember where a signed_descriptor_t is stored and how to * manage the memory for signed_descriptor_body. */ typedef enum { /** The descriptor isn't stored on disk at all: the copy in memory is * canonical; the saved_offset field is meaningless. */ SAVED_NOWHERE=0, /** The descriptor is stored in the cached_routers file: the * signed_descriptor_body is meaningless; the signed_descriptor_len and * saved_offset are used to index into the mmaped cache file. */ SAVED_IN_CACHE, /** The descriptor is stored in the cached_routers.new file: the * signed_descriptor_body and saved_offset fields are both set. */ /* FFFF (We could also mmap the file and grow the mmap as needed, or * lazy-load the descriptor text by using seek and read. We don't, for * now.) */ SAVED_IN_JOURNAL } saved_location_t; #define saved_location_bitfield_t ENUM_BF(saved_location_t) /** Enumeration: what directory object is being downloaded? * This determines which schedule is selected to perform the download. */ typedef enum { DL_SCHED_GENERIC = 0, DL_SCHED_CONSENSUS = 1, DL_SCHED_BRIDGE = 2, } download_schedule_t; #define download_schedule_bitfield_t ENUM_BF(download_schedule_t) /** Enumeration: is the download schedule for downloading from an authority, * or from any available directory mirror? * During bootstrap, "any" means a fallback (or an authority, if there * are no fallbacks). * When we have a valid consensus, "any" means any directory server. */ typedef enum { DL_WANT_ANY_DIRSERVER = 0, DL_WANT_AUTHORITY = 1, } download_want_authority_t; #define download_want_authority_bitfield_t \ ENUM_BF(download_want_authority_t) /** Enumeration: do we want to increment the schedule position each time a * connection is attempted (these attempts can be concurrent), or do we want * to increment the schedule position after a connection fails? */ typedef enum { DL_SCHED_INCREMENT_FAILURE = 0, DL_SCHED_INCREMENT_ATTEMPT = 1, } download_schedule_increment_t; #define download_schedule_increment_bitfield_t \ ENUM_BF(download_schedule_increment_t) /** Enumeration: do we want to use the random exponential backoff * mechanism? */ typedef enum { DL_SCHED_DETERMINISTIC = 0, DL_SCHED_RANDOM_EXPONENTIAL = 1, } download_schedule_backoff_t; #define download_schedule_backoff_bitfield_t \ ENUM_BF(download_schedule_backoff_t) /** Information about our plans for retrying downloads for a downloadable * directory object. * Each type of downloadable directory object has a corresponding retry * schedule, which can be different depending on whether the object is * being downloaded from an authority or a mirror (want_authority). * next_attempt_at contains the next time we will attempt to download * the object. * For schedules that increment_on failure, n_download_failures * is used to determine the position in the schedule. (Each schedule is a * smartlist of integer delays, parsed from a CSV option.) Every time a * connection attempt fails, n_download_failures is incremented, * the new delay value is looked up from the schedule, and * next_attempt_at is set delay seconds from the time the previous * connection failed. Therefore, at most one failure-based connection can be * in progress for each download_status_t. * For schedules that increment_on attempt, n_download_attempts * is used to determine the position in the schedule. Every time a * connection attempt is made, n_download_attempts is incremented, * the new delay value is looked up from the schedule, and * next_attempt_at is set delay seconds from the time the previous * connection was attempted. Therefore, multiple concurrent attempted-based * connections can be in progress for each download_status_t. * After an object is successfully downloaded, any other concurrent connections * are terminated. A new schedule which starts at position 0 is used for * subsequent downloads of the same object. */ typedef struct download_status_t { time_t next_attempt_at; /**< When should we try downloading this object * again? */ uint8_t n_download_failures; /**< Number of failed downloads of the most * recent object, since the last success. */ uint8_t n_download_attempts; /**< Number of (potentially concurrent) attempts * to download the most recent object, since * the last success. */ download_schedule_bitfield_t schedule : 8; /**< What kind of object is being * downloaded? This determines the * schedule used for the download. */ download_want_authority_bitfield_t want_authority : 1; /**< Is the download * happening from an authority * or a mirror? This determines * the schedule used for the * download. */ download_schedule_increment_bitfield_t increment_on : 1; /**< does this * schedule increment on each attempt, * or after each failure? */ download_schedule_backoff_bitfield_t backoff : 1; /**< do we use the * deterministic schedule, or random * exponential backoffs? */ uint8_t last_backoff_position; /**< number of attempts/failures, depending * on increment_on, when we last recalculated * the delay. Only updated if backoff * == 1. */ int last_delay_used; /**< last delay used for random exponential backoff; * only updated if backoff == 1 */ } download_status_t; /** If n_download_failures is this high, the download can never happen. */ #define IMPOSSIBLE_TO_DOWNLOAD 255 /** The max size we expect router descriptor annotations we create to * be. We'll accept larger ones if we see them on disk, but we won't * create any that are larger than this. */ #define ROUTER_ANNOTATION_BUF_LEN 256 /** Information need to cache an onion router's descriptor. */ typedef struct signed_descriptor_t { /** Pointer to the raw server descriptor, preceded by annotations. Not * necessarily NUL-terminated. If saved_location is SAVED_IN_CACHE, this * pointer is null. */ char *signed_descriptor_body; /** Length of the annotations preceding the server descriptor. */ size_t annotations_len; /** Length of the server descriptor. */ size_t signed_descriptor_len; /** Digest of the server descriptor, computed as specified in * dir-spec.txt. */ char signed_descriptor_digest[DIGEST_LEN]; /** Identity digest of the router. */ char identity_digest[DIGEST_LEN]; /** Declared publication time of the descriptor. */ time_t published_on; /** For routerdescs only: digest of the corresponding extrainfo. */ char extra_info_digest[DIGEST_LEN]; /** For routerdescs only: A SHA256-digest of the extrainfo (if any) */ char extra_info_digest256[DIGEST256_LEN]; /** Certificate for ed25519 signing key. */ struct tor_cert_st *signing_key_cert; /** For routerdescs only: Status of downloading the corresponding * extrainfo. */ download_status_t ei_dl_status; /** Where is the descriptor saved? */ saved_location_t saved_location; /** If saved_location is SAVED_IN_CACHE or SAVED_IN_JOURNAL, the offset of * this descriptor in the corresponding file. */ off_t saved_offset; /** What position is this descriptor within routerlist->routers or * routerlist->old_routers? -1 for none. */ int routerlist_index; /** The valid-until time of the most recent consensus that listed this * descriptor. 0 for "never listed in a consensus, so far as we know." */ time_t last_listed_as_valid_until; /* If true, we do not ever try to save this object in the cache. */ unsigned int do_not_cache : 1; /* If true, this item is meant to represent an extrainfo. */ unsigned int is_extrainfo : 1; /* If true, we got an extrainfo for this item, and the digest was right, * but it was incompatible. */ unsigned int extrainfo_is_bogus : 1; /* If true, we are willing to transmit this item unencrypted. */ unsigned int send_unencrypted : 1; } signed_descriptor_t; /** A signed integer representing a country code. */ typedef int16_t country_t; /** Information about another onion router in the network. */ typedef struct { signed_descriptor_t cache_info; char *nickname; /**< Human-readable OR name. */ uint32_t addr; /**< IPv4 address of OR, in host order. */ uint16_t or_port; /**< Port for TLS connections. */ uint16_t dir_port; /**< Port for HTTP directory connections. */ /** A router's IPv6 address, if it has one. */ /* XXXXX187 Actually these should probably be part of a list of addresses, * not just a special case. Use abstractions to access these; don't do it * directly. */ tor_addr_t ipv6_addr; uint16_t ipv6_orport; crypto_pk_t *onion_pkey; /**< Public RSA key for onions. */ crypto_pk_t *identity_pkey; /**< Public RSA key for signing. */ /** Public curve25519 key for onions */ curve25519_public_key_t *onion_curve25519_pkey; /** What's the earliest expiration time on all the certs in this * routerinfo? */ time_t cert_expiration_time; char *platform; /**< What software/operating system is this OR using? */ char *protocol_list; /**< Encoded list of subprotocol versions supported * by this OR */ /* link info */ uint32_t bandwidthrate; /**< How many bytes does this OR add to its token * bucket per second? */ uint32_t bandwidthburst; /**< How large is this OR's token bucket? */ /** How many bytes/s is this router known to handle? */ uint32_t bandwidthcapacity; smartlist_t *exit_policy; /**< What streams will this OR permit * to exit on IPv4? NULL for 'reject *:*'. */ /** What streams will this OR permit to exit on IPv6? * NULL for 'reject *:*' */ struct short_policy_t *ipv6_exit_policy; long uptime; /**< How many seconds the router claims to have been up */ smartlist_t *declared_family; /**< Nicknames of router which this router * claims are its family. */ char *contact_info; /**< Declared contact info for this router. */ unsigned int is_hibernating:1; /**< Whether the router claims to be * hibernating */ unsigned int caches_extra_info:1; /**< Whether the router says it caches and * serves extrainfo documents. */ unsigned int allow_single_hop_exits:1; /**< Whether the router says * it allows single hop exits. */ unsigned int wants_to_be_hs_dir:1; /**< True iff this router claims to be * a hidden service directory. */ unsigned int policy_is_reject_star:1; /**< True iff the exit policy for this * router rejects everything. */ /** True if, after we have added this router, we should re-launch * tests for it. */ unsigned int needs_retest_if_added:1; /** True iff this router included "tunnelled-dir-server" in its descriptor, * implying it accepts tunnelled directory requests, or it advertised * dir_port > 0. */ unsigned int supports_tunnelled_dir_requests:1; /** Used during voting to indicate that we should not include an entry for * this routerinfo. Used only during voting. */ unsigned int omit_from_vote:1; /** Tor can use this router for general positions in circuits; we got it * from a directory server as usual, or we're an authority and a server * uploaded it. */ #define ROUTER_PURPOSE_GENERAL 0 /** Tor should avoid using this router for circuit-building: we got it * from a crontroller. If the controller wants to use it, it'll have to * ask for it by identity. */ #define ROUTER_PURPOSE_CONTROLLER 1 /** Tor should use this router only for bridge positions in circuits: we got * it via a directory request from the bridge itself, or a bridge * authority. x*/ #define ROUTER_PURPOSE_BRIDGE 2 /** Tor should not use this router; it was marked in cached-descriptors with * a purpose we didn't recognize. */ #define ROUTER_PURPOSE_UNKNOWN 255 /* In what way did we find out about this router? One of ROUTER_PURPOSE_*. * Routers of different purposes are kept segregated and used for different * things; see notes on ROUTER_PURPOSE_* macros above. */ uint8_t purpose; } routerinfo_t; /** Information needed to keep and cache a signed extra-info document. */ typedef struct extrainfo_t { signed_descriptor_t cache_info; /** SHA256 digest of this document */ uint8_t digest256[DIGEST256_LEN]; /** The router's nickname. */ char nickname[MAX_NICKNAME_LEN+1]; /** True iff we found the right key for this extra-info, verified the * signature, and found it to be bad. */ unsigned int bad_sig : 1; /** If present, we didn't have the right key to verify this extra-info, * so this is a copy of the signature in the document. */ char *pending_sig; /** Length of pending_sig. */ size_t pending_sig_len; } extrainfo_t; /** Contents of a single router entry in a network status object. */ typedef struct routerstatus_t { time_t published_on; /**< When was this router published? */ char nickname[MAX_NICKNAME_LEN+1]; /**< The nickname this router says it * has. */ char identity_digest[DIGEST_LEN]; /**< Digest of the router's identity * key. */ /** Digest of the router's most recent descriptor or microdescriptor. * If it's a descriptor, we only use the first DIGEST_LEN bytes. */ char descriptor_digest[DIGEST256_LEN]; uint32_t addr; /**< IPv4 address for this router, in host order. */ uint16_t or_port; /**< OR port for this router. */ uint16_t dir_port; /**< Directory port for this router. */ tor_addr_t ipv6_addr; /**< IPv6 address for this router. */ uint16_t ipv6_orport; /**