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- #! /usr/bin/env perl
- # Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
- #
- # Licensed under the Apache License 2.0 (the "License"). You may not use
- # this file except in compliance with the License. You can obtain a copy
- # in the file LICENSE in the source distribution or at
- # https://www.openssl.org/source/license.html
- use strict;
- use OpenSSL::Test qw/:DEFAULT cmdstr srctop_file srctop_dir bldtop_dir/;
- use OpenSSL::Test::Utils;
- use File::Temp qw(tempfile);
- use TLSProxy::Proxy;
- my $test_name = "test_tls13psk";
- setup($test_name);
- plan skip_all => "TLSProxy isn't usable on $^O"
- if $^O =~ /^(VMS)$/;
- plan skip_all => "$test_name needs the dynamic engine feature enabled"
- if disabled("engine") || disabled("dynamic-engine");
- plan skip_all => "$test_name needs the sock feature enabled"
- if disabled("sock");
- plan skip_all => "$test_name needs TLSv1.3 enabled"
- if disabled("tls1_3");
- $ENV{OPENSSL_ia32cap} = '~0x200000200000000';
- $ENV{CTLOG_FILE} = srctop_file("test", "ct", "log_list.conf");
- my $proxy = TLSProxy::Proxy->new(
- undef,
- cmdstr(app(["openssl"]), display => 1),
- srctop_file("apps", "server.pem"),
- (!$ENV{HARNESS_ACTIVE} || $ENV{HARNESS_VERBOSE})
- );
- use constant {
- PSK_LAST_FIRST_CH => 0,
- ILLEGAL_EXT_SECOND_CH => 1
- };
- #Most PSK tests are done in test_ssl_new. This tests various failure scenarios
- #around PSK
- #Test 1: First get a session
- (undef, my $session) = tempfile();
- $proxy->clientflags("-sess_out ".$session);
- $proxy->serverflags("-servername localhost");
- $proxy->sessionfile($session);
- $proxy->start() or plan skip_all => "Unable to start up Proxy for tests";
- plan tests => 5;
- ok(TLSProxy::Message->success(), "Initial connection");
- #Test 2: Attempt a resume with PSK not in last place. Should fail
- $proxy->clear();
- $proxy->clientflags("-sess_in ".$session);
- $proxy->filter(\&modify_psk_filter);
- my $testtype = PSK_LAST_FIRST_CH;
- $proxy->start();
- ok(TLSProxy::Message->fail(), "PSK not last");
- #Test 3: Attempt a resume after an HRR where PSK hash matches selected
- # ciphersuite. Should see PSK on second ClientHello
- $proxy->clear();
- $proxy->clientflags("-sess_in ".$session);
- $proxy->serverflags("-curves P-256");
- $proxy->filter(undef);
- $proxy->start();
- #Check if the PSK is present in the second ClientHello
- my $ch2 = ${$proxy->message_list}[2];
- my $ch2seen = defined $ch2 && $ch2->mt() == TLSProxy::Message::MT_CLIENT_HELLO;
- my $pskseen = $ch2seen
- && defined ${$ch2->{extension_data}}{TLSProxy::Message::EXT_PSK};
- ok($pskseen, "PSK hash matches");
- #Test 4: Attempt a resume after an HRR where PSK hash does not match selected
- # ciphersuite. Should not see PSK on second ClientHello
- $proxy->clear();
- $proxy->clientflags("-sess_in ".$session);
- $proxy->filter(\&modify_psk_filter);
- $proxy->serverflags("-curves P-256");
- $proxy->ciphersuitesc("TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384");
- $proxy->ciphersuitess("TLS_AES_256_GCM_SHA384");
- #We force an early failure because TLS Proxy doesn't actually support
- #TLS_AES_256_GCM_SHA384. That doesn't matter for this test though.
- $testtype = ILLEGAL_EXT_SECOND_CH;
- $proxy->start();
- #Check if the PSK is present in the second ClientHello
- $ch2 = ${$proxy->message_list}[2];
- $ch2seen = defined $ch2 && $ch2->mt() == TLSProxy::Message::MT_CLIENT_HELLO;
- $pskseen = $ch2seen
- && defined ${$ch2->extension_data}{TLSProxy::Message::EXT_PSK};
- ok($ch2seen && !$pskseen, "PSK hash does not match");
- #Test 5: Attempt a resume without a sig agls extension. Should succeed because
- # sig algs is not needed in a resumption.
- $proxy->clear();
- $proxy->clientflags("-sess_in ".$session);
- $proxy->filter(\&remove_sig_algs_filter);
- $proxy->start();
- ok(TLSProxy::Message->success(), "Remove sig algs");
- unlink $session;
- sub modify_psk_filter
- {
- my $proxy = shift;
- my $flight;
- my $message;
- if ($testtype == PSK_LAST_FIRST_CH) {
- $flight = 0;
- } else {
- $flight = 2;
- }
- # Only look at the first or second ClientHello
- return if $proxy->flight != $flight;
- if ($testtype == PSK_LAST_FIRST_CH) {
- $message = ${$proxy->message_list}[0];
- } else {
- $message = ${$proxy->message_list}[2];
- }
- return if (!defined $message
- || $message->mt != TLSProxy::Message::MT_CLIENT_HELLO);
- if ($testtype == PSK_LAST_FIRST_CH) {
- $message->set_extension(TLSProxy::Message::EXT_FORCE_LAST, "");
- } else {
- #Deliberately break the connection
- $message->set_extension(TLSProxy::Message::EXT_SUPPORTED_GROUPS, "");
- }
- $message->repack();
- }
- sub remove_sig_algs_filter
- {
- my $proxy = shift;
- my $message;
- # Only look at the first ClientHello
- return if $proxy->flight != 0;
- $message = ${$proxy->message_list}[0];
- $message->delete_extension(TLSProxy::Message::EXT_SIG_ALGS);
- $message->repack();
- }
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