Add some libssl tests

Two tests are added: one is a simple version tolerance test; the second is
a test to ensure that OpenSSL operates correctly in the case of a zero
length extensions block. The latter was broken inadvertently (now fixed)
and it would have been helpful to have a test case for it.

Reviewed-by: Richard Levitte <levitte@openssl.org>

test/Makefile

@@ -71,6 +71,8 @@ CONSTTIMETEST=  constant_time_test
 VERIFYEXTRATEST=	verify_extra_test
 CLIENTHELLOTEST=	clienthellotest
 PACKETTEST=	packettest
+SSLVERTOLTEST=	sslvertoltest.pl
+SSLEXTENSIONTEST=	sslextensiontest.pl
 
 TESTS=		alltests
 
@@ -156,7 +158,8 @@ alltests: \
 	test_ige test_jpake test_secmem \
 	test_srp test_cms test_v3name test_ocsp \
 	test_gost2814789 test_heartbeat test_p5_crpt2 \
-	test_constant_time test_verify_extra test_clienthello test_packet
+	test_constant_time test_verify_extra test_clienthello test_packet \
+	test_sslvertol test_sslextension
 
 test_evp: $(EVPTEST)$(EXE_EXT) evptests.txt
 	@echo $(START) $@
@@ -417,6 +420,15 @@ test_packet: $(PACKETTEST)$(EXE_EXT)
 	@echo $(START) $@
 	../util/shlib_wrap.sh ./$(PACKETTEST)
 
+#OPENSSL_ia32cap=... in ssl tests below ensures AES-NI is switched off (AES-NI does not go through the testmode engine)
+test_sslvertol: ../apps/openssl$(EXE_EXT)
+	@echo $(START) $@
+	PERL5LIB=$$PERL5LIB:../util ../util/shlib_wrap.sh ./$(SSLVERTOLTEST) "OPENSSL_ia32cap='~0x200000200000000' ../apps/openssl$(EXE_EXT)" ../apps/server.pem
+
+test_sslextension: ../apps/openssl$(EXE_EXT)
+	@echo $(START) $@
+	PERL5LIB=$$PERL5LIB:../util ../util/shlib_wrap.sh ./$(SSLEXTENSIONTEST) "OPENSSL_ia32cap='~0x200000200000000' ../apps/openssl$(EXE_EXT)" ../apps/server.pem
+
 update: local_depend
 	@if [ -z "$(THIS)" ]; then $(MAKE) -f $(TOP)/Makefile reflect THIS=$@; fi
 

test/sslextensiontest.pl

@@ -0,0 +1,89 @@
+#!/usr/bin/perl
+# Written by Matt Caswell for the OpenSSL project.
+# ====================================================================
+# Copyright (c) 1998-2015 The OpenSSL Project.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+#
+# 3. All advertising materials mentioning features or use of this
+#    software must display the following acknowledgment:
+#    "This product includes software developed by the OpenSSL Project
+#    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+#
+# 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+#    endorse or promote products derived from this software without
+#    prior written permission. For written permission, please contact
+#    openssl-core@openssl.org.
+#
+# 5. Products derived from this software may not be called "OpenSSL"
+#    nor may "OpenSSL" appear in their names without prior written
+#    permission of the OpenSSL Project.
+#
+# 6. Redistributions of any form whatsoever must retain the following
+#    acknowledgment:
+#    "This product includes software developed by the OpenSSL Project
+#    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+#
+# THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+# EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+# ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+# OF THE POSSIBILITY OF SUCH DAMAGE.
+# ====================================================================
+#
+# This product includes cryptographic software written by Eric Young
+# (eay@cryptsoft.com).  This product includes software written by Tim
+# Hudson (tjh@cryptsoft.com).
+
+use strict;
+use TLSProxy::Proxy;
+
+my $proxy = TLSProxy::Proxy->new(
+    \&extension_filter,
+    @ARGV
+);
+
+#Test 1: Sending a zero length extension block should pass
+$proxy->start();
+TLSProxy::Message->success or die "FAILED: Zero extension length test\n";
+
+print "SUCCESS: Extension test\n";
+
+sub extension_filter
+{
+    my $proxy = shift;
+
+    # We're only interested in the initial ClientHello
+    if ($proxy->flight != 0) {
+        return;
+    }
+
+    foreach my $message (@{$proxy->message_list}) {
+        if ($message->mt == TLSProxy::Message::MT_CLIENT_HELLO) {
+            #Remove all extensions and set the extension len to zero
+            $message->extension_data({});
+            $message->extensions_len(0);
+            #Extensions have been removed so make sure we don't try to use them
+            $message->process_extensions();
+
+            $message->repack();
+        }
+    }
+}

test/sslvertoltest.pl

@@ -0,0 +1,93 @@
+#!/usr/bin/perl
+# Written by Matt Caswell for the OpenSSL project.
+# ====================================================================
+# Copyright (c) 1998-2015 The OpenSSL Project.  All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+#
+# 3. All advertising materials mentioning features or use of this
+#    software must display the following acknowledgment:
+#    "This product includes software developed by the OpenSSL Project
+#    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+#
+# 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+#    endorse or promote products derived from this software without
+#    prior written permission. For written permission, please contact
+#    openssl-core@openssl.org.
+#
+# 5. Products derived from this software may not be called "OpenSSL"
+#    nor may "OpenSSL" appear in their names without prior written
+#    permission of the OpenSSL Project.
+#
+# 6. Redistributions of any form whatsoever must retain the following
+#    acknowledgment:
+#    "This product includes software developed by the OpenSSL Project
+#    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+#
+# THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+# EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+# ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+# OF THE POSSIBILITY OF SUCH DAMAGE.
+# ====================================================================
+#
+# This product includes cryptographic software written by Eric Young
+# (eay@cryptsoft.com).  This product includes software written by Tim
+# Hudson (tjh@cryptsoft.com).
+
+use strict;
+use TLSProxy::Proxy;
+
+my $proxy = TLSProxy::Proxy->new(
+    \&vers_tolerance_filter,
+    @ARGV
+);
+
+#Test 1: Asking for TLS1.3 should pass
+my $client_version = TLSProxy::Record::VERS_TLS_1_3;
+$proxy->start();
+TLSProxy::Message->success or die "FAILED: Version tolerance test\n";
+
+#Test 2: Testing something below SSLv3 should fail
+$client_version = TLSProxy::Record::VERS_SSL_3_0 - 1;
+$proxy->restart();
+TLSProxy::Message->success and die "FAILED: Version tolerance test\n";
+
+print "SUCCESS: Version tolerance test\n";
+
+sub vers_tolerance_filter
+{
+    my $proxy = shift;
+
+    # We're only interested in the initial ClientHello
+    if ($proxy->flight != 0) {
+        return;
+    }
+
+    foreach my $message (@{$proxy->message_list}) {
+        if ($message->mt == TLSProxy::Message::MT_CLIENT_HELLO) {
+            #Set the client version
+            #Anything above the max supported version (TLS1.2) should succeed
+            #Anything below SSLv3 should fail
+            $message->client_version($client_version);
+            $message->repack();
+        }
+    }
+}