mirror of
https://github.com/curl/curl.git
synced 2024-12-27 06:59:43 +08:00
269fdd4c6e
It could previously be set with configure/cmake and used in rare cases for reading randomness: with ancient mbedTLS or rustls without arc4random. We now get randomness in this order: 1. The TLS library's way to provide random 2. On Windows: Curl_win32_random 3. if arc4random exists, use that 4. weak non-crytographically strong pseudo-random Closes #14749
419 lines
12 KiB
Plaintext
419 lines
12 KiB
Plaintext
#***************************************************************************
|
|
# _ _ ____ _
|
|
# Project ___| | | | _ \| |
|
|
# / __| | | | |_) | |
|
|
# | (__| |_| | _ <| |___
|
|
# \___|\___/|_| \_\_____|
|
|
#
|
|
# Copyright (C) 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$PREFIX_OPENSSL/include"
|
|
fi
|
|
;;
|
|
esac
|
|
|
|
if test "$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"
|
|
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_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])
|
|
ssl_msg="BoringSSL"
|
|
OPENSSL_IS_BORINGSSL=1
|
|
],[
|
|
AC_MSG_RESULT([no])
|
|
])
|
|
|
|
AC_MSG_CHECKING([for AWS-LC])
|
|
AC_COMPILE_IFELSE([
|
|
AC_LANG_PROGRAM([[
|
|
#include <openssl/base.h>
|
|
]],[[
|
|
#ifndef OPENSSL_IS_AWSLC
|
|
#error not AWS-LC
|
|
#endif
|
|
]])
|
|
],[
|
|
AC_MSG_RESULT([yes])
|
|
ssl_msg="AWS-LC"
|
|
OPENSSL_IS_BORINGSSL=1
|
|
],[
|
|
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 (OPENSSL_VERSION_NUMBER >= 0x30000000L)
|
|
return 0;
|
|
#else
|
|
#error older than 3
|
|
#endif
|
|
]])
|
|
],[
|
|
AC_MSG_RESULT([yes])
|
|
ssl_msg="OpenSSL v3+"
|
|
],[
|
|
AC_MSG_RESULT([no])
|
|
])
|
|
fi
|
|
|
|
dnl is this OpenSSL (fork) providing the original QUIC API?
|
|
AC_CHECK_FUNCS([SSL_set_quic_use_legacy_codepoint],
|
|
[QUIC_ENABLED=yes])
|
|
if test "$QUIC_ENABLED" = "yes"; then
|
|
AC_MSG_NOTICE([OpenSSL fork speaks QUIC API])
|
|
else
|
|
AC_MSG_NOTICE([OpenSSL version does not speak QUIC API])
|
|
fi
|
|
|
|
if test "$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 $LIB_OPENSSL to CURL_LIBRARY_PATH])
|
|
fi
|
|
fi
|
|
check_for_ca_bundle=1
|
|
LIBCURL_PC_REQUIRES_PRIVATE="$LIBCURL_PC_REQUIRES_PRIVATE openssl"
|
|
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: $OPENSSL_ENABLED])
|
|
AC_MSG_ERROR([--with-openssl was given but OpenSSL could not be detected])
|
|
fi
|
|
|
|
dnl ---
|
|
dnl We require OpenSSL with SRP support.
|
|
dnl ---
|
|
if test "$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
|
|
|
|
dnl ---
|
|
dnl We may use OpenSSL QUIC.
|
|
dnl ---
|
|
if test "$OPENSSL_ENABLED" = "1"; then
|
|
AC_MSG_CHECKING([for QUIC support and OpenSSL >= 3.3])
|
|
AC_LINK_IFELSE([
|
|
AC_LANG_PROGRAM([[
|
|
#include <openssl/ssl.h>
|
|
]],[[
|
|
#if (OPENSSL_VERSION_NUMBER < 0x30300000L)
|
|
#error need at least version 3.3.0
|
|
#endif
|
|
OSSL_QUIC_client_method();
|
|
]])
|
|
],[
|
|
AC_MSG_RESULT([yes])
|
|
have_openssl_quic=1
|
|
],[
|
|
AC_MSG_RESULT([no])
|
|
])
|
|
fi
|
|
])
|