| #*************************************************************************** |
| # _ _ ____ _ |
| # Project ___| | | | _ \| | |
| # / __| | | | |_) | | |
| # | (__| |_| | _ <| |___ |
| # \___|\___/|_| \_\_____| |
| # |
| # Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al. |
| # |
| # This software is licensed as described in the file COPYING, which |
| # you should have received as part of this distribution. The terms |
| # are also available at https://curl.se/docs/copyright.html. |
| # |
| # You may opt to use, copy, modify, merge, publish, distribute and/or sell |
| # copies of the Software, and permit persons to whom the Software is |
| # furnished to do so, under the terms of the COPYING file. |
| # |
| # This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
| # KIND, either express or implied. |
| # |
| # SPDX-License-Identifier: curl |
| # |
| #*************************************************************************** |
| |
| # File version for 'aclocal' use. Keep it a single number. |
| # serial 5 |
| |
| dnl ********************************************************************** |
| dnl Check for OpenSSL libraries and headers |
| dnl ********************************************************************** |
| |
| AC_DEFUN([CURL_WITH_OPENSSL], [ |
| if test "x$OPT_OPENSSL" != xno; then |
| ssl_msg= |
| |
| dnl backup the pre-ssl variables |
| CLEANLDFLAGS="$LDFLAGS" |
| CLEANCPPFLAGS="$CPPFLAGS" |
| CLEANLIBS="$LIBS" |
| |
| dnl This is for Msys/Mingw |
| case $host in |
| *-*-msys* | *-*-mingw*) |
| AC_MSG_CHECKING([for gdi32]) |
| my_ac_save_LIBS=$LIBS |
| LIBS="-lgdi32 $LIBS" |
| AC_LINK_IFELSE([ AC_LANG_PROGRAM([[ |
| #include <windef.h> |
| #include <wingdi.h> |
| ]], |
| [[ |
| GdiFlush(); |
| ]])], |
| [ dnl worked! |
| AC_MSG_RESULT([yes])], |
| [ dnl failed, restore LIBS |
| LIBS=$my_ac_save_LIBS |
| AC_MSG_RESULT(no)] |
| ) |
| ;; |
| esac |
| |
| case "$OPT_OPENSSL" in |
| yes) |
| dnl --with-openssl (without path) used |
| PKGTEST="yes" |
| PREFIX_OPENSSL= |
| ;; |
| *) |
| dnl check the given --with-openssl spot |
| PKGTEST="no" |
| PREFIX_OPENSSL=$OPT_OPENSSL |
| |
| dnl Try pkg-config even when cross-compiling. Since we |
| dnl specify PKG_CONFIG_LIBDIR we're only looking where |
| dnl the user told us to look |
| OPENSSL_PCDIR="$OPT_OPENSSL/lib/pkgconfig" |
| if test -f "$OPENSSL_PCDIR/openssl.pc"; then |
| AC_MSG_NOTICE([PKG_CONFIG_LIBDIR will be set to "$OPENSSL_PCDIR"]) |
| PKGTEST="yes" |
| fi |
| |
| if test "$PKGTEST" != "yes"; then |
| # try lib64 instead |
| OPENSSL_PCDIR="$OPT_OPENSSL/lib64/pkgconfig" |
| if test -f "$OPENSSL_PCDIR/openssl.pc"; then |
| AC_MSG_NOTICE([PKG_CONFIG_LIBDIR will be set to "$OPENSSL_PCDIR"]) |
| PKGTEST="yes" |
| fi |
| fi |
| |
| if test "$PKGTEST" != "yes"; then |
| if test ! -f "$PREFIX_OPENSSL/include/openssl/ssl.h"; then |
| AC_MSG_ERROR([$PREFIX_OPENSSL is a bad --with-openssl prefix!]) |
| fi |
| fi |
| |
| dnl in case pkg-config comes up empty, use what we got |
| dnl via --with-openssl |
| LIB_OPENSSL="$PREFIX_OPENSSL/lib$libsuff" |
| if test "$PREFIX_OPENSSL" != "/usr" ; then |
| SSL_LDFLAGS="-L$LIB_OPENSSL" |
| SSL_CPPFLAGS="-I$PREFIX_OPENSSL/include" |
| fi |
| SSL_CPPFLAGS="$SSL_CPPFLAGS -I$PREFIX_OPENSSL/include/openssl" |
| ;; |
| esac |
| |
| if test "$PKGTEST" = "yes"; then |
| |
| CURL_CHECK_PKGCONFIG(openssl, [$OPENSSL_PCDIR]) |
| |
| if test "$PKGCONFIG" != "no" ; then |
| SSL_LIBS=`CURL_EXPORT_PCDIR([$OPENSSL_PCDIR]) dnl |
| $PKGCONFIG --libs-only-l --libs-only-other openssl 2>/dev/null` |
| |
| SSL_LDFLAGS=`CURL_EXPORT_PCDIR([$OPENSSL_PCDIR]) dnl |
| $PKGCONFIG --libs-only-L openssl 2>/dev/null` |
| |
| SSL_CPPFLAGS=`CURL_EXPORT_PCDIR([$OPENSSL_PCDIR]) dnl |
| $PKGCONFIG --cflags-only-I openssl 2>/dev/null` |
| |
| AC_SUBST(SSL_LIBS) |
| AC_MSG_NOTICE([pkg-config: SSL_LIBS: "$SSL_LIBS"]) |
| AC_MSG_NOTICE([pkg-config: SSL_LDFLAGS: "$SSL_LDFLAGS"]) |
| AC_MSG_NOTICE([pkg-config: SSL_CPPFLAGS: "$SSL_CPPFLAGS"]) |
| |
| LIB_OPENSSL=`echo $SSL_LDFLAGS | sed -e 's/^-L//'` |
| |
| dnl use the values pkg-config reported. This is here |
| dnl instead of below with CPPFLAGS and LDFLAGS because we only |
| dnl learn about this via pkg-config. If we only have |
| dnl the argument to --with-openssl we don't know what |
| dnl additional libs may be necessary. Hope that we |
| dnl don't need any. |
| LIBS="$SSL_LIBS $LIBS" |
| fi |
| fi |
| |
| dnl finally, set flags to use SSL |
| CPPFLAGS="$CPPFLAGS $SSL_CPPFLAGS" |
| LDFLAGS="$LDFLAGS $SSL_LDFLAGS" |
| |
| AC_CHECK_LIB(crypto, HMAC_Update,[ |
| HAVECRYPTO="yes" |
| LIBS="-lcrypto $LIBS" |
| ],[ |
| if test -n "$LIB_OPENSSL" ; then |
| LDFLAGS="$CLEANLDFLAGS -L$LIB_OPENSSL" |
| fi |
| if test "$PKGCONFIG" = "no" -a -n "$PREFIX_OPENSSL" ; then |
| # only set this if pkg-config wasn't used |
| CPPFLAGS="$CLEANCPPFLAGS -I$PREFIX_OPENSSL/include/openssl -I$PREFIX_OPENSSL/include" |
| fi |
| # Linking previously failed, try extra paths from --with-openssl or |
| # pkg-config. Use a different function name to avoid reusing the earlier |
| # cached result. |
| AC_CHECK_LIB(crypto, HMAC_Init_ex,[ |
| HAVECRYPTO="yes" |
| LIBS="-lcrypto $LIBS"], [ |
| |
| dnl still no, but what about with -ldl? |
| AC_MSG_CHECKING([OpenSSL linking with -ldl]) |
| LIBS="-lcrypto $CLEANLIBS -ldl" |
| AC_LINK_IFELSE([ AC_LANG_PROGRAM([[ |
| #include <openssl/err.h> |
| ]], [[ |
| ERR_clear_error(); |
| ]]) ], |
| [ |
| AC_MSG_RESULT(yes) |
| HAVECRYPTO="yes" |
| ], |
| [ |
| AC_MSG_RESULT(no) |
| dnl ok, so what about both -ldl and -lpthread? |
| dnl This may be necessary for static libraries. |
| |
| AC_MSG_CHECKING([OpenSSL linking with -ldl and -lpthread]) |
| LIBS="-lcrypto $CLEANLIBS -ldl -lpthread" |
| AC_LINK_IFELSE([ |
| AC_LANG_PROGRAM([[ |
| #include <openssl/err.h> |
| ]], [[ |
| ERR_clear_error(); |
| ]])], |
| [ |
| AC_MSG_RESULT(yes) |
| HAVECRYPTO="yes" |
| ], |
| [ |
| AC_MSG_RESULT(no) |
| LDFLAGS="$CLEANLDFLAGS" |
| CPPFLAGS="$CLEANCPPFLAGS" |
| LIBS="$CLEANLIBS" |
| |
| ]) |
| |
| ]) |
| |
| ]) |
| ]) |
| |
| if test X"$HAVECRYPTO" = X"yes"; then |
| dnl This is only reasonable to do if crypto actually is there: check for |
| dnl SSL libs NOTE: it is important to do this AFTER the crypto lib |
| |
| AC_CHECK_LIB(ssl, SSL_connect) |
| |
| if test "$ac_cv_lib_ssl_SSL_connect" != yes; then |
| dnl we didn't find the SSL lib, try the RSAglue/rsaref stuff |
| AC_MSG_CHECKING(for ssl with RSAglue/rsaref libs in use); |
| OLIBS=$LIBS |
| LIBS="-lRSAglue -lrsaref $LIBS" |
| AC_CHECK_LIB(ssl, SSL_connect) |
| if test "$ac_cv_lib_ssl_SSL_connect" != yes; then |
| dnl still no SSL_connect |
| AC_MSG_RESULT(no) |
| LIBS=$OLIBS |
| else |
| AC_MSG_RESULT(yes) |
| fi |
| |
| else |
| |
| dnl Have the libraries--check for OpenSSL headers |
| AC_CHECK_HEADERS(openssl/x509.h openssl/rsa.h openssl/crypto.h \ |
| openssl/pem.h openssl/ssl.h openssl/err.h, |
| ssl_msg="OpenSSL" |
| test openssl != "$DEFAULT_SSL_BACKEND" || VALID_DEFAULT_SSL_BACKEND=yes |
| OPENSSL_ENABLED=1 |
| AC_DEFINE(USE_OPENSSL, 1, [if OpenSSL is in use])) |
| |
| if test $ac_cv_header_openssl_x509_h = no; then |
| dnl we don't use the "action" part of the AC_CHECK_HEADERS macro |
| dnl since 'err.h' might in fact find a krb4 header with the same |
| dnl name |
| AC_CHECK_HEADERS(x509.h rsa.h crypto.h pem.h ssl.h err.h) |
| |
| if test $ac_cv_header_x509_h = yes && |
| test $ac_cv_header_crypto_h = yes && |
| test $ac_cv_header_ssl_h = yes; then |
| dnl three matches |
| ssl_msg="OpenSSL" |
| OPENSSL_ENABLED=1 |
| fi |
| fi |
| fi |
| |
| if test X"$OPENSSL_ENABLED" != X"1"; then |
| LIBS="$CLEANLIBS" |
| fi |
| |
| if test X"$OPT_OPENSSL" != Xoff && |
| test "$OPENSSL_ENABLED" != "1"; then |
| AC_MSG_ERROR([OpenSSL libs and/or directories were not found where specified!]) |
| fi |
| fi |
| |
| if test X"$OPENSSL_ENABLED" = X"1"; then |
| dnl These can only exist if OpenSSL exists |
| |
| AC_CHECK_FUNCS( RAND_egd ) |
| |
| AC_MSG_CHECKING([for BoringSSL]) |
| AC_COMPILE_IFELSE([ |
| AC_LANG_PROGRAM([[ |
| #include <openssl/base.h> |
| ]],[[ |
| #ifndef OPENSSL_IS_BORINGSSL |
| #error not boringssl |
| #endif |
| ]]) |
| ],[ |
| AC_MSG_RESULT([yes]) |
| AC_DEFINE_UNQUOTED(HAVE_BORINGSSL, 1, |
| [Define to 1 if using BoringSSL.]) |
| ssl_msg="BoringSSL" |
| ],[ |
| AC_MSG_RESULT([no]) |
| ]) |
| |
| AC_MSG_CHECKING([for libressl]) |
| AC_COMPILE_IFELSE([ |
| AC_LANG_PROGRAM([[ |
| #include <openssl/opensslv.h> |
| ]],[[ |
| int dummy = LIBRESSL_VERSION_NUMBER; |
| ]]) |
| ],[ |
| AC_MSG_RESULT([yes]) |
| AC_DEFINE_UNQUOTED(HAVE_LIBRESSL, 1, |
| [Define to 1 if using libressl.]) |
| ssl_msg="libressl" |
| ],[ |
| AC_MSG_RESULT([no]) |
| ]) |
| |
| AC_MSG_CHECKING([for OpenSSL >= v3]) |
| AC_COMPILE_IFELSE([ |
| AC_LANG_PROGRAM([[ |
| #include <openssl/opensslv.h> |
| ]],[[ |
| #if defined(OPENSSL_VERSION_MAJOR) && (OPENSSL_VERSION_MAJOR >= 3) |
| return 0; |
| #else |
| #error older than 3 |
| #endif |
| ]]) |
| ],[ |
| AC_MSG_RESULT([yes]) |
| AC_DEFINE_UNQUOTED(HAVE_OPENSSL3, 1, |
| [Define to 1 if using OpenSSL 3 or later.]) |
| dnl OpenSSLv3 marks the DES functions deprecated but we have no |
| dnl replacements (yet) so tell the compiler to not warn for them |
| dnl |
| dnl Ask OpenSSL to suppress the warnings. |
| CPPFLAGS="$CPPFLAGS -DOPENSSL_SUPPRESS_DEPRECATED" |
| ssl_msg="OpenSSL v3+" |
| ],[ |
| AC_MSG_RESULT([no]) |
| ]) |
| fi |
| |
| if test "$OPENSSL_ENABLED" = "1"; then |
| if test -n "$LIB_OPENSSL"; then |
| dnl when the ssl shared libs were found in a path that the run-time |
| dnl linker doesn't search through, we need to add it to CURL_LIBRARY_PATH |
| dnl to prevent further configure tests to fail due to this |
| if test "x$cross_compiling" != "xyes"; then |
| CURL_LIBRARY_PATH="$CURL_LIBRARY_PATH:$LIB_OPENSSL" |
| export CURL_LIBRARY_PATH |
| AC_MSG_NOTICE([Added $LIB_OPENSSL to CURL_LIBRARY_PATH]) |
| fi |
| fi |
| check_for_ca_bundle=1 |
| fi |
| |
| test -z "$ssl_msg" || ssl_backends="${ssl_backends:+$ssl_backends, }$ssl_msg" |
| fi |
| |
| if test X"$OPT_OPENSSL" != Xno && |
| test "$OPENSSL_ENABLED" != "1"; then |
| AC_MSG_NOTICE([OPT_OPENSSL: $OPT_OPENSSL]) |
| AC_MSG_NOTICE([OPENSSL_ENABLED: $OPENSSL_ENABLED]) |
| AC_MSG_ERROR([--with-openssl was given but OpenSSL could not be detected]) |
| fi |
| |
| dnl ********************************************************************** |
| dnl Check for the random seed preferences |
| dnl ********************************************************************** |
| |
| if test X"$OPENSSL_ENABLED" = X"1"; then |
| AC_ARG_WITH(egd-socket, |
| AS_HELP_STRING([--with-egd-socket=FILE], |
| [Entropy Gathering Daemon socket pathname]), |
| [ EGD_SOCKET="$withval" ] |
| ) |
| if test -n "$EGD_SOCKET" ; then |
| AC_DEFINE_UNQUOTED(EGD_SOCKET, "$EGD_SOCKET", |
| [your Entropy Gathering Daemon socket pathname] ) |
| fi |
| |
| dnl Check for user-specified random device |
| AC_ARG_WITH(random, |
| AS_HELP_STRING([--with-random=FILE], |
| [read randomness from FILE (default=/dev/urandom)]), |
| [ RANDOM_FILE="$withval" ], |
| [ |
| if test x$cross_compiling != xyes; then |
| dnl Check for random device |
| AC_CHECK_FILE("/dev/urandom", [ RANDOM_FILE="/dev/urandom"] ) |
| else |
| AC_MSG_WARN([skipped the /dev/urandom detection when cross-compiling]) |
| fi |
| ] |
| ) |
| if test -n "$RANDOM_FILE" && test X"$RANDOM_FILE" != Xno ; then |
| AC_SUBST(RANDOM_FILE) |
| AC_DEFINE_UNQUOTED(RANDOM_FILE, "$RANDOM_FILE", |
| [a suitable file to read random data from]) |
| fi |
| fi |
| |
| dnl --- |
| dnl We require OpenSSL with SRP support. |
| dnl --- |
| if test "$OPENSSL_ENABLED" = "1"; then |
| AC_MSG_CHECKING([for SRP support in OpenSSL]) |
| AC_LINK_IFELSE([ |
| AC_LANG_PROGRAM([[ |
| #include <openssl/ssl.h> |
| ]],[[ |
| SSL_CTX_set_srp_username(NULL, ""); |
| SSL_CTX_set_srp_password(NULL, ""); |
| ]]) |
| ],[ |
| AC_MSG_RESULT([yes]) |
| AC_DEFINE(HAVE_OPENSSL_SRP, 1, [if you have the functions SSL_CTX_set_srp_username and SSL_CTX_set_srp_password]) |
| AC_SUBST(HAVE_OPENSSL_SRP, [1]) |
| ],[ |
| AC_MSG_RESULT([no]) |
| ]) |
| fi |
| |
| dnl --- |
| dnl Whether the OpenSSL configuration will be loaded automatically |
| dnl --- |
| if test X"$OPENSSL_ENABLED" = X"1"; then |
| AC_ARG_ENABLE(openssl-auto-load-config, |
| AS_HELP_STRING([--enable-openssl-auto-load-config],[Enable automatic loading of OpenSSL configuration]) |
| AS_HELP_STRING([--disable-openssl-auto-load-config],[Disable automatic loading of OpenSSL configuration]), |
| [ if test X"$enableval" = X"no"; then |
| AC_MSG_NOTICE([automatic loading of OpenSSL configuration disabled]) |
| AC_DEFINE(CURL_DISABLE_OPENSSL_AUTO_LOAD_CONFIG, 1, [if the OpenSSL configuration won't be loaded automatically]) |
| fi |
| ]) |
| fi |
| |
| ]) |