From b01fc2ef3d0b012e5819b53b83d1262529924c05 Mon Sep 17 00:00:00 2001
From: Alexander Traud <pabstraud@compuserve.com>
Date: Wed, 13 Jun 2018 12:06:10 +0200
Subject: [PATCH] res_rtp_asterisk: Instead of ./configure use OPENSSL_NO_SRTP.
Previously, Asterisk used its script ./configure, to test whether OpenSSL was
built with no-srtp (or was simply too old). However, the header file
<openssl/opensslconf.h> is the preferred way to detect the local configuration
of OpenSSL.
As a positive side-effect the script ./configure does not interleave the
detection of the Open Settlement Protocol Toolkit (OSPTK) with the detection of
individual features of OpenSSL anymore.
Change-Id: I3c77c7b00b2ffa2e935632097fa057b9fdf480c0
---
configure | 96 ------------------------------------------
configure.ac | 1 -
res/res_rtp_asterisk.c | 44 ++++++++++---------
3 files changed, 23 insertions(+), 118 deletions(-)
diff --git a/configure b/configure
index c542c19849..e5b3d70cad 100755
--- a/configure
+++ b/configure
@@ -30763,102 +30763,6 @@ $as_echo "no" >&6; }
fi
fi
-
-if test "x${PBX_OPENSSL_SRTP}" != "x1" -a "${USE_OPENSSL_SRTP}" != "no"; then
- pbxlibdir=""
- # if --with-OPENSSL_SRTP=DIR has been specified, use it.
- if test "x${OPENSSL_SRTP_DIR}" != "x"; then
- if test -d ${OPENSSL_SRTP_DIR}/lib; then
- pbxlibdir="-L${OPENSSL_SRTP_DIR}/lib"
- else
- pbxlibdir="-L${OPENSSL_SRTP_DIR}"
- fi
- fi
-
- ast_ext_lib_check_save_CFLAGS="${CFLAGS}"
- CFLAGS="${CFLAGS} "
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking for SSL_CTX_set_tlsext_use_srtp in -lssl" >&5
-$as_echo_n "checking for SSL_CTX_set_tlsext_use_srtp in -lssl... " >&6; }
-if ${ac_cv_lib_ssl_SSL_CTX_set_tlsext_use_srtp+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- ac_check_lib_save_LIBS=$LIBS
-LIBS="-lssl ${pbxlibdir} -lcrypto $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$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 SSL_CTX_set_tlsext_use_srtp ();
-int
-main ()
-{
-return SSL_CTX_set_tlsext_use_srtp ();
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- ac_cv_lib_ssl_SSL_CTX_set_tlsext_use_srtp=yes
-else
- ac_cv_lib_ssl_SSL_CTX_set_tlsext_use_srtp=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ssl_SSL_CTX_set_tlsext_use_srtp" >&5
-$as_echo "$ac_cv_lib_ssl_SSL_CTX_set_tlsext_use_srtp" >&6; }
-if test "x$ac_cv_lib_ssl_SSL_CTX_set_tlsext_use_srtp" = xyes; then :
- AST_OPENSSL_SRTP_FOUND=yes
-else
- AST_OPENSSL_SRTP_FOUND=no
-fi
-
- CFLAGS="${ast_ext_lib_check_save_CFLAGS}"
-
-
- # now check for the header.
- if test "${AST_OPENSSL_SRTP_FOUND}" = "yes"; then
- OPENSSL_SRTP_LIB="${pbxlibdir} -lssl -lcrypto"
- # if --with-OPENSSL_SRTP=DIR has been specified, use it.
- if test "x${OPENSSL_SRTP_DIR}" != "x"; then
- OPENSSL_SRTP_INCLUDE="-I${OPENSSL_SRTP_DIR}/include"
- fi
- OPENSSL_SRTP_INCLUDE="${OPENSSL_SRTP_INCLUDE} "
-
- # check for the header
- ast_ext_lib_check_saved_CPPFLAGS="${CPPFLAGS}"
- CPPFLAGS="${CPPFLAGS} ${OPENSSL_SRTP_INCLUDE}"
- ac_fn_c_check_header_mongrel "$LINENO" "openssl/ssl.h" "ac_cv_header_openssl_ssl_h" "$ac_includes_default"
-if test "x$ac_cv_header_openssl_ssl_h" = xyes; then :
- OPENSSL_SRTP_HEADER_FOUND=1
-else
- OPENSSL_SRTP_HEADER_FOUND=0
-fi
-
-
- CPPFLAGS="${ast_ext_lib_check_saved_CPPFLAGS}"
-
- if test "x${OPENSSL_SRTP_HEADER_FOUND}" = "x0" ; then
- OPENSSL_SRTP_LIB=""
- OPENSSL_SRTP_INCLUDE=""
- else
-
- PBX_OPENSSL_SRTP=1
- cat >>confdefs.h <<_ACEOF
-#define HAVE_OPENSSL_SRTP 1
-_ACEOF
-
- fi
- fi
-fi
-
-
fi
diff --git a/configure.ac b/configure.ac
index 158cf43e1b..5da5afa4dd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2518,7 +2518,6 @@ fi
if test "$PBX_OPENSSL" = "1";
then
AST_CHECK_OSPTK([4], [0], [0])
- AST_EXT_LIB_CHECK([OPENSSL_SRTP], [ssl], [SSL_CTX_set_tlsext_use_srtp], [openssl/ssl.h], [-lcrypto])
fi
AST_EXT_LIB_CHECK([SRTP], [srtp2], [srtp_init], [srtp2/srtp.h], [], [], [2])
diff --git a/res/res_rtp_asterisk.c b/res/res_rtp_asterisk.c
index 2104ce3245..f6e26d6ae5 100644
--- a/res/res_rtp_asterisk.c
+++ b/res/res_rtp_asterisk.c
@@ -40,9 +40,10 @@
#include <signal.h>
#include <fcntl.h>
-#ifdef HAVE_OPENSSL_SRTP
+#ifdef HAVE_OPENSSL
#include <openssl/opensslconf.h>
#include <openssl/opensslv.h>
+#if !defined(OPENSSL_NO_SRTP) && (OPENSSL_VERSION_NUMBER >= 0x10001000L)
#include <openssl/ssl.h>
#include <openssl/err.h>
#include <openssl/bio.h>
@@ -53,6 +54,7 @@
#include <openssl/dh.h>
#endif
#endif
+#endif
#ifdef HAVE_PJPROJECT
#include <pjlib.h>
@@ -275,7 +277,7 @@ struct rtp_learning_info {
enum ast_media_type stream_type;
};
-#ifdef HAVE_OPENSSL_SRTP
+#if !defined(OPENSSL_NO_SRTP) && (OPENSSL_VERSION_NUMBER >= 0x10001000L)
struct dtls_details {
SSL *ssl; /*!< SSL session */
BIO *read_bio; /*!< Memory buffer for reading */
@@ -417,7 +419,7 @@ struct ast_rtp {
unsigned int ice_num_components; /*!< The number of ICE components */
#endif
-#ifdef HAVE_OPENSSL_SRTP
+#if !defined(OPENSSL_NO_SRTP) && (OPENSSL_VERSION_NUMBER >= 0x10001000L)
SSL_CTX *ssl_ctx; /*!< SSL context */
enum ast_rtp_dtls_verify dtls_verify; /*!< What to verify */
enum ast_srtp_suite suite; /*!< SRTP crypto suite */
@@ -494,7 +496,7 @@ struct ast_rtcp {
/* VP8: sequence number for the RTCP FIR FCI */
int firseq;
-#ifdef HAVE_OPENSSL_SRTP
+#if !defined(OPENSSL_NO_SRTP) && (OPENSSL_VERSION_NUMBER >= 0x10001000L)
struct dtls_details dtls; /*!< DTLS state information */
#endif
@@ -562,7 +564,7 @@ static void ast_rtp_set_stream_num(struct ast_rtp_instance *instance, int stream
static int ast_rtp_extension_enable(struct ast_rtp_instance *instance, enum ast_rtp_extension extension);
static int ast_rtp_bundle(struct ast_rtp_instance *child, struct ast_rtp_instance *parent);
-#ifdef HAVE_OPENSSL_SRTP
+#if !defined(OPENSSL_NO_SRTP) && (OPENSSL_VERSION_NUMBER >= 0x10001000L)
static int ast_rtp_activate(struct ast_rtp_instance *instance);
static void dtls_srtp_check_pending(struct ast_rtp_instance *instance, struct ast_rtp *rtp, int rtcp);
static void dtls_srtp_start_timeout_timer(struct ast_rtp_instance *instance, struct ast_rtp *rtp, int rtcp);
@@ -1581,7 +1583,7 @@ static struct ast_rtp_engine_ice ast_rtp_ice = {
};
#endif
-#ifdef HAVE_OPENSSL_SRTP
+#if !defined(OPENSSL_NO_SRTP) && (OPENSSL_VERSION_NUMBER >= 0x10001000L)
static int dtls_verify_callback(int preverify_ok, X509_STORE_CTX *ctx)
{
/* We don't want to actually verify the certificate so just accept what they have provided */
@@ -2259,7 +2261,7 @@ static struct ast_rtp_engine asterisk_rtp_engine = {
#ifdef HAVE_PJPROJECT
.ice = &ast_rtp_ice,
#endif
-#ifdef HAVE_OPENSSL_SRTP
+#if !defined(OPENSSL_NO_SRTP) && (OPENSSL_VERSION_NUMBER >= 0x10001000L)
.dtls = &ast_rtp_dtls,
.activate = ast_rtp_activate,
#endif
@@ -2271,7 +2273,7 @@ static struct ast_rtp_engine asterisk_rtp_engine = {
.bundle = ast_rtp_bundle,
};
-#ifdef HAVE_OPENSSL_SRTP
+#if !defined(OPENSSL_NO_SRTP) && (OPENSSL_VERSION_NUMBER >= 0x10001000L)
/*! \pre instance is locked */
static void dtls_perform_handshake(struct ast_rtp_instance *instance, struct dtls_details *dtls, int rtcp)
{
@@ -2305,7 +2307,7 @@ static void dtls_perform_handshake(struct ast_rtp_instance *instance, struct dtl
}
#endif
-#ifdef HAVE_OPENSSL_SRTP
+#if !defined(OPENSSL_NO_SRTP) && (OPENSSL_VERSION_NUMBER >= 0x10001000L)
static void dtls_perform_setup(struct dtls_details *dtls)
{
if (!dtls->ssl || !SSL_is_init_finished(dtls->ssl)) {
@@ -2349,7 +2351,7 @@ static void ast_rtp_on_ice_complete(pj_ice_sess *ice, pj_status_t status)
}
}
-#ifdef HAVE_OPENSSL_SRTP
+#if !defined(OPENSSL_NO_SRTP) && (OPENSSL_VERSION_NUMBER >= 0x10001000L)
dtls_perform_setup(&rtp->dtls);
dtls_perform_handshake(instance, &rtp->dtls, 0);
@@ -2483,7 +2485,7 @@ static inline int rtcp_debug_test_addr(struct ast_sockaddr *addr)
return 1;
}
-#ifdef HAVE_OPENSSL_SRTP
+#if !defined(OPENSSL_NO_SRTP) && (OPENSSL_VERSION_NUMBER >= 0x10001000L)
/*! \pre instance is locked */
static int dtls_srtp_handle_timeout(struct ast_rtp_instance *instance, int rtcp)
{
@@ -2817,7 +2819,7 @@ static int __rtp_recvfrom(struct ast_rtp_instance *instance, void *buf, size_t s
return len;
}
-#ifdef HAVE_OPENSSL_SRTP
+#if !defined(OPENSSL_NO_SRTP) && (OPENSSL_VERSION_NUMBER >= 0x10001000L)
/* If this is an SSL packet pass it to OpenSSL for processing. RFC section for first byte value:
* https://tools.ietf.org/html/rfc5764#section-5.1.2 */
if ((*in >= 20) && (*in <= 63)) {
@@ -3514,7 +3516,7 @@ static int rtp_allocate_transport(struct ast_rtp_instance *instance, struct ast_
}
#endif
-#ifdef HAVE_OPENSSL_SRTP
+#if !defined(OPENSSL_NO_SRTP) && (OPENSSL_VERSION_NUMBER >= 0x10001000L)
rtp->rekeyid = -1;
rtp->dtls.timeout_timer = -1;
#endif
@@ -3530,7 +3532,7 @@ static void rtp_deallocate_transport(struct ast_rtp_instance *instance, struct a
struct timespec ts = { .tv_sec = wait.tv_sec, .tv_nsec = wait.tv_usec * 1000, };
#endif
-#ifdef HAVE_OPENSSL_SRTP
+#if !defined(OPENSSL_NO_SRTP) && (OPENSSL_VERSION_NUMBER >= 0x10001000L)
ast_rtp_dtls_stop(instance);
#endif
@@ -6727,7 +6729,7 @@ static void ast_rtp_prop_set(struct ast_rtp_instance *instance, enum ast_rtp_pro
return;
}
rtp->rtcp->s = -1;
-#ifdef HAVE_OPENSSL_SRTP
+#if !defined(OPENSSL_NO_SRTP) && (OPENSSL_VERSION_NUMBER >= 0x10001000L)
rtp->rtcp->dtls.timeout_timer = -1;
#endif
rtp->rtcp->schedid = -1;
@@ -6790,7 +6792,7 @@ static void ast_rtp_prop_set(struct ast_rtp_instance *instance, enum ast_rtp_pro
rtp_add_candidates_to_ice(instance, rtp, &rtp->rtcp->us, ast_sockaddr_port(&rtp->rtcp->us), AST_RTP_ICE_COMPONENT_RTCP, TRANSPORT_SOCKET_RTCP);
}
#endif
-#ifdef HAVE_OPENSSL_SRTP
+#if !defined(OPENSSL_NO_SRTP) && (OPENSSL_VERSION_NUMBER >= 0x10001000L)
dtls_setup_rtcp(instance);
#endif
} else {
@@ -6810,7 +6812,7 @@ static void ast_rtp_prop_set(struct ast_rtp_instance *instance, enum ast_rtp_pro
rtp->rtcp->s = rtp->s;
ast_rtp_instance_get_remote_address(instance, &addr);
ast_sockaddr_copy(&rtp->rtcp->them, &addr);
-#ifdef HAVE_OPENSSL_SRTP
+#if !defined(OPENSSL_NO_SRTP) && (OPENSSL_VERSION_NUMBER >= 0x10001000L)
if (rtp->rtcp->dtls.ssl && rtp->rtcp->dtls.ssl != rtp->dtls.ssl) {
SSL_free(rtp->rtcp->dtls.ssl);
}
@@ -6838,7 +6840,7 @@ static void ast_rtp_prop_set(struct ast_rtp_instance *instance, enum ast_rtp_pro
if (rtp->rtcp->s > -1 && rtp->rtcp->s != rtp->s) {
close(rtp->rtcp->s);
}
-#ifdef HAVE_OPENSSL_SRTP
+#if !defined(OPENSSL_NO_SRTP) && (OPENSSL_VERSION_NUMBER >= 0x10001000L)
ao2_unlock(instance);
dtls_srtp_stop_timeout_timer(instance, rtp, 1);
ao2_lock(instance);
@@ -7090,7 +7092,7 @@ static void ast_rtp_stop(struct ast_rtp_instance *instance)
struct ast_rtp *rtp = ast_rtp_instance_get_data(instance);
struct ast_sockaddr addr = { {0,} };
-#ifdef HAVE_OPENSSL_SRTP
+#if !defined(OPENSSL_NO_SRTP) && (OPENSSL_VERSION_NUMBER >= 0x10001000L)
ao2_unlock(instance);
AST_SCHED_DEL_UNREF(rtp->sched, rtp->rekeyid, ao2_ref(instance, -1));
@@ -7310,7 +7312,7 @@ static int ast_rtp_bundle(struct ast_rtp_instance *child, struct ast_rtp_instanc
AST_VECTOR_APPEND(&parent_rtp->ssrc_mapping, mapping);
-#ifdef HAVE_OPENSSL_SRTP
+#if !defined(OPENSSL_NO_SRTP) && (OPENSSL_VERSION_NUMBER >= 0x10001000L)
/* If DTLS-SRTP is already in use then add the local SSRC to it, otherwise it will get added once DTLS
* negotiation has been completed.
*/
@@ -7331,7 +7333,7 @@ static int ast_rtp_bundle(struct ast_rtp_instance *child, struct ast_rtp_instanc
return 0;
}
-#ifdef HAVE_OPENSSL_SRTP
+#if !defined(OPENSSL_NO_SRTP) && (OPENSSL_VERSION_NUMBER >= 0x10001000L)
/*! \pre instance is locked */
static int ast_rtp_activate(struct ast_rtp_instance *instance)
{
--
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