Extended master secret test script.

Reviewed-by: Matt Caswell <matt@openssl.org>

diff --git a/test/recipes/70-test_tlsextms.t b/test/recipes/70-test_tlsextms.t
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+++ b/test/recipes/70-test_tlsextms.t
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+#!/usr/bin/perl
+# Written by Stephen Henson 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 OpenSSL::Test qw/:DEFAULT cmdstr top_file top_dir/;
+use TLSProxy::Proxy;
+use File::Temp qw(tempfile);
+
+my $test_name = "test_tlsextms";
+setup($test_name);
+
+plan skip_all => "$test_name can only be performed with OpenSSL configured shared"
+    unless (map { s/\R//; s/^SHARED_LIBS=\s*//; $_ }
+        grep { /^SHARED_LIBS=/ }
+        do { local @ARGV = ( top_file("Makefile") ); <> })[0] ne "";
+
+$ENV{OPENSSL_ENGINES} = top_dir("engines");
+$ENV{OPENSSL_ia32cap} = '~0x200000200000000';
+
+sub checkmessages($$$$$);
+sub setrmextms($$);
+sub clearall();
+
+my $crmextms = 0;
+my $srmextms = 0;
+my $cextms = 0;
+my $sextms = 0;
+my $fullhand = 0;
+
+my $proxy = TLSProxy::Proxy->new(
+    \&extms_filter,
+    cmdstr(app(["openssl"])),
+    top_file("apps", "server.pem"),
+    1
+);
+
+plan tests => 9;
+
+#Test 1: By default server and client should send extended master secret
+# extension.
+#Expected result: ClientHello extension seen; ServerHello extension seen
+#                 Full handshake
+
+setrmextms(0, 0);
+$proxy->start();
+checkmessages(1, "Default extended master secret test", 1, 1, 1);
+
+#Test 2: If client omits extended master secret extension, server should too.
+#Expected result: ClientHello extension not seen; ServerHello extension not seen
+#                 Full handshake
+
+clearall();
+setrmextms(1, 0);
+$proxy->start();
+checkmessages(2, "No client extension extended master secret test", 0, 0, 1);
+
+# Test 3: same as 1 but with session tickets disabled.
+# Expected result: same as test 1.
+
+clearall();
+$proxy->clientflags("-no_ticket");
+setrmextms(0, 0);
+$proxy->start();
+checkmessages(3, "No ticket extended master secret test", 1, 1, 1);
+
+# Test 4: same as 2 but with session tickets disabled.
+# Expected result: same as test 2.
+
+clearall();
+$proxy->clientflags("-no_ticket");
+setrmextms(1, 0);
+$proxy->start();
+checkmessages(2, "No ticket, no client extension extended master secret test", 0, 0, 1);
+
+#Test 5: Session resumption extended master secret test
+#
+#Expected result: ClientHello extension seen; ServerHello extension seen
+#                 Abbreviated handshake
+
+clearall();
+setrmextms(0, 0);
+(my $fh, my $session) = tempfile();
+$proxy->serverconnects(2);
+$proxy->clientflags("-sess_out ".$session);
+$proxy->start();
+$proxy->clear();
+$proxy->clientflags("-sess_in ".$session);
+$proxy->clientstart();
+checkmessages(5, "Session resumption extended master secret test", 1, 1, 0);
+
+#Test 6: Session resumption extended master secret test orginial session
+# omits extension. Server must not resume session.
+#Expected result: ClientHello extension seen; ServerHello extension seen
+#                 Full handshake
+
+clearall();
+setrmextms(1, 0);
+($fh, $session) = tempfile();
+$proxy->serverconnects(2);
+$proxy->clientflags("-sess_out ".$session);
+$proxy->start();
+$proxy->clear();
+$proxy->clientflags("-sess_in ".$session);
+setrmextms(0, 0);
+$proxy->clientstart();
+checkmessages(6, "Session resumption extended master secret test", 1, 1, 1);
+
+#Test 7: Session resumption extended master secret test resumed session
+# omits client extension. Server must abort connection.
+#Expected result: aborted connection.
+
+clearall();
+setrmextms(0, 0);
+($fh, $session) = tempfile();
+$proxy->serverconnects(2);
+$proxy->clientflags("-sess_out ".$session);
+$proxy->start();
+$proxy->clear();
+$proxy->clientflags("-sess_in ".$session);
+setrmextms(1, 0);
+$proxy->clientstart();
+ok(TLSProxy::Message->fail(), "Client inconsistent session resupmption");
+
+#Test 8: Session resumption extended master secret test resumed session
+# omits server extension. Client must abort connection.
+#Expected result: aborted connection.
+
+clearall();
+setrmextms(0, 0);
+($fh, $session) = tempfile();
+$proxy->serverconnects(2);
+$proxy->clientflags("-sess_out ".$session);
+$proxy->start();
+$proxy->clear();
+$proxy->clientflags("-sess_in ".$session);
+setrmextms(0, 1);
+$proxy->clientstart();
+ok(TLSProxy::Message->fail(), "Server inconsistent session resumption 1");
+
+#Test 9: Session resumption extended master secret test initial session
+# omits server extension. Client must abort connection.
+#Expected result: aborted connection.
+
+clearall();
+setrmextms(0, 1);
+($fh, $session) = tempfile();
+$proxy->serverconnects(2);
+$proxy->clientflags("-sess_out ".$session);
+$proxy->start();
+$proxy->clear();
+$proxy->clientflags("-sess_in ".$session);
+setrmextms(0, 0);
+$proxy->clientstart();
+ok(TLSProxy::Message->fail(), "Server inconsistent session resumption 2");
+
+sub extms_filter
+{
+    my $proxy = shift;
+
+    foreach my $message (@{$proxy->message_list}) {
+        if ($crmextms && $message->mt == TLSProxy::Message::MT_CLIENT_HELLO) {
+            $message->delete_extension(TLSProxy::ClientHello::EXT_EXTENDED_MASTER_SECRET);
+            $message->repack();
+        }
+        if ($srmextms && $message->mt == TLSProxy::Message::MT_SERVER_HELLO) {
+            $message->delete_extension(TLSProxy::ClientHello::EXT_EXTENDED_MASTER_SECRET);
+            $message->repack();
+        }
+    }
+}
+
+sub checkmessages($$$$$)
+{
+    my ($testno, $testname, $testcextms, $testsextms, $testhand) = @_;
+
+    subtest $testname => sub {
+
+    foreach my $message (@{$proxy->message_list}) {
+        if ($message->mt == TLSProxy::Message::MT_CLIENT_HELLO
+            || $message->mt == TLSProxy::Message::MT_SERVER_HELLO) {
+        #Get the extensions data
+        my %extensions = %{$message->extension_data};
+        if (defined
+            $extensions{TLSProxy::ClientHello::EXT_EXTENDED_MASTER_SECRET}) {
+            if ($message->mt == TLSProxy::Message::MT_CLIENT_HELLO) {
+                $cextms = 1;
+            } else {
+                $sextms = 1;
+            }
+        }
+        } elsif ($message->mt == TLSProxy::Message::MT_CLIENT_KEY_EXCHANGE) {
+            #Must be doing a full handshake
+            $fullhand = 1;
+        }
+    }
+
+    plan tests => 4;
+
+    ok(TLSProxy::Message->success, "Handshake");
+
+    ok($testcextms == $cextms,
+       "ClientHello extension extended master secret check");
+    ok($testsextms == $sextms,
+       "ServerHello extension extended master secret check");
+    ok($testhand == $fullhand,
+       "Extended master secret full handshake check");
+
+    }
+}
+
+sub setrmextms($$)
+{
+    ($crmextms, $srmextms) = @_;
+}
+
+sub clearall()
+{
+    $cextms = 0;
+    $sextms = 0;
+    $fullhand = 0;
+    $proxy->clear();
+}