2 # Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
4 # Licensed under the OpenSSL license (the "License"). You may not use
5 # this file except in compliance with the License. You can obtain a copy
6 # in the file LICENSE in the source distribution or at
7 # https://www.openssl.org/source/license.html
10 use OpenSSL::Test qw/:DEFAULT cmdstr srctop_file srctop_dir bldtop_dir/;
11 use OpenSSL::Test::Utils;
12 use File::Temp qw(tempfile);
15 my $test_name = "test_tls13psk";
18 plan skip_all => "TLSProxy isn't usable on $^O"
21 plan skip_all => "$test_name needs the dynamic engine feature enabled"
22 if disabled("engine") || disabled("dynamic-engine");
24 plan skip_all => "$test_name needs the sock feature enabled"
27 plan skip_all => "$test_name needs TLSv1.3 enabled"
28 if disabled("tls1_3");
30 $ENV{OPENSSL_ia32cap} = '~0x200000200000000';
31 $ENV{CTLOG_FILE} = srctop_file("test", "ct", "log_list.conf");
33 my $proxy = TLSProxy::Proxy->new(
35 cmdstr(app(["openssl"]), display => 1),
36 srctop_file("apps", "server.pem"),
37 (!$ENV{HARNESS_ACTIVE} || $ENV{HARNESS_VERBOSE})
41 PSK_LAST_FIRST_CH => 0,
42 ILLEGAL_EXT_SECOND_CH => 1
45 #Most PSK tests are done in test_ssl_new. This tests various failure scenarios
48 #Test 1: First get a session
49 (undef, my $session) = tempfile();
50 $proxy->clientflags("-sess_out ".$session);
51 $proxy->serverflags("-servername localhost");
52 $proxy->sessionfile($session);
53 $proxy->start() or plan skip_all => "Unable to start up Proxy for tests";
55 ok(TLSProxy::Message->success(), "Initial connection");
57 #Test 2: Attempt a resume with PSK not in last place. Should fail
59 $proxy->clientflags("-sess_in ".$session);
60 $proxy->filter(\&modify_psk_filter);
61 my $testtype = PSK_LAST_FIRST_CH;
63 ok(TLSProxy::Message->fail(), "PSK not last");
65 #Test 3: Attempt a resume after an HRR where PSK hash matches selected
66 # ciperhsuite. Should see PSK on second ClientHello
68 $proxy->clientflags("-sess_in ".$session);
69 $proxy->serverflags("-curves P-256");
70 $proxy->filter(undef);
72 #Check if the PSK is present in the second ClientHello
73 my $ch2 = ${$proxy->message_list}[2];
74 my $ch2seen = defined $ch2 && $ch2->mt() == TLSProxy::Message::MT_CLIENT_HELLO;
75 my $pskseen = $ch2seen
76 && defined ${$ch2->{extension_data}}{TLSProxy::Message::EXT_PSK};
77 ok($pskseen, "PSK hash matches");
79 #Test 4: Attempt a resume after an HRR where PSK hash does not match selected
80 # ciphersuite. Should not see PSK on second ClientHello
82 $proxy->clientflags("-sess_in ".$session);
83 $proxy->filter(\&modify_psk_filter);
84 $proxy->serverflags("-curves P-256");
85 $proxy->cipherc("TLS13-AES-128-GCM-SHA256:TLS13-AES-256-GCM-SHA384");
86 $proxy->ciphers("TLS13-AES-256-GCM-SHA384");
87 #We force an early failure because TLS Proxy doesn't actually support
88 #TLS13-AES-256-GCM-SHA384. That doesn't matter for this test though.
89 $testtype = ILLEGAL_EXT_SECOND_CH;
91 #Check if the PSK is present in the second ClientHello
92 $ch2 = ${$proxy->message_list}[2];
93 $ch2seen = defined $ch2 && $ch2->mt() == TLSProxy::Message::MT_CLIENT_HELLO;
95 && defined ${$ch2->extension_data}{TLSProxy::Message::EXT_PSK};
96 ok($ch2seen && !$pskseen, "PSK hash does not match");
98 #Test 5: Attempt a resume without a sig agls extension. Should succeed because
99 # sig algs is not needed in a resumption.
101 $proxy->clientflags("-sess_in ".$session);
102 $proxy->filter(\&remove_sig_algs_filter);
104 ok(TLSProxy::Message->success(), "Remove sig algs");
108 sub modify_psk_filter
114 if ($testtype == PSK_LAST_FIRST_CH) {
120 # Only look at the first or second ClientHello
121 return if $proxy->flight != $flight;
123 if ($testtype == PSK_LAST_FIRST_CH) {
124 $message = ${$proxy->message_list}[0];
126 $message = ${$proxy->message_list}[2];
129 return if (!defined $message
130 || $message->mt != TLSProxy::Message::MT_CLIENT_HELLO);
132 if ($testtype == PSK_LAST_FIRST_CH) {
133 $message->set_extension(TLSProxy::Message::EXT_FORCE_LAST, "");
135 #Deliberately break the connection
136 $message->set_extension(TLSProxy::Message::EXT_SUPPORTED_GROUPS, "");
141 sub remove_sig_algs_filter
146 # Only look at the first ClientHello
147 return if $proxy->flight != 0;
149 $message = ${$proxy->message_list}[0];
150 $message->delete_extension(TLSProxy::Message::EXT_SIG_ALGS);