1#! /usr/bin/env perl 2# Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved. 3# 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 8 9use strict; 10use OpenSSL::Test qw/:DEFAULT cmdstr srctop_file srctop_dir bldtop_dir/; 11use OpenSSL::Test::Utils; 12use File::Temp qw(tempfile); 13use TLSProxy::Proxy; 14 15my $test_name = "test_tls13psk"; 16setup($test_name); 17 18plan skip_all => "TLSProxy isn't usable on $^O" 19 if $^O =~ /^(VMS)$/; 20 21plan skip_all => "$test_name needs the dynamic engine feature enabled" 22 if disabled("engine") || disabled("dynamic-engine"); 23 24plan skip_all => "$test_name needs the sock feature enabled" 25 if disabled("sock"); 26 27plan skip_all => "$test_name needs TLSv1.3 enabled" 28 if disabled("tls1_3"); 29 30$ENV{OPENSSL_ia32cap} = '~0x200000200000000'; 31$ENV{CTLOG_FILE} = srctop_file("test", "ct", "log_list.conf"); 32 33my $proxy = TLSProxy::Proxy->new( 34 undef, 35 cmdstr(app(["openssl"]), display => 1), 36 srctop_file("apps", "server.pem"), 37 (!$ENV{HARNESS_ACTIVE} || $ENV{HARNESS_VERBOSE}) 38); 39 40use constant { 41 PSK_LAST_FIRST_CH => 0, 42 ILLEGAL_EXT_SECOND_CH => 1 43}; 44 45#Most PSK tests are done in test_ssl_new. This tests various failure scenarios 46#around PSK 47 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$proxy->start() or plan skip_all => "Unable to start up Proxy for tests"; 54plan tests => 5; 55ok(TLSProxy::Message->success(), "Initial connection"); 56 57#Test 2: Attempt a resume with PSK not in last place. Should fail 58$proxy->clear(); 59$proxy->clientflags("-sess_in ".$session); 60$proxy->filter(\&modify_psk_filter); 61my $testtype = PSK_LAST_FIRST_CH; 62$proxy->start(); 63ok(TLSProxy::Message->fail(), "PSK not last"); 64 65#Test 3: Attempt a resume after an HRR where PSK hash matches selected 66# ciphersuite. Should see PSK on second ClientHello 67$proxy->clear(); 68$proxy->clientflags("-sess_in ".$session); 69$proxy->serverflags("-curves P-256"); 70$proxy->filter(undef); 71$proxy->start(); 72#Check if the PSK is present in the second ClientHello 73my $ch2 = ${$proxy->message_list}[2]; 74my $ch2seen = defined $ch2 && $ch2->mt() == TLSProxy::Message::MT_CLIENT_HELLO; 75my $pskseen = $ch2seen 76 && defined ${$ch2->{extension_data}}{TLSProxy::Message::EXT_PSK}; 77ok($pskseen, "PSK hash matches"); 78 79#Test 4: Attempt a resume after an HRR where PSK hash does not match selected 80# ciphersuite. Should not see PSK on second ClientHello 81$proxy->clear(); 82$proxy->clientflags("-sess_in ".$session); 83$proxy->filter(\&modify_psk_filter); 84$proxy->serverflags("-curves P-256"); 85$proxy->ciphersuitesc("TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384"); 86$proxy->ciphersuitess("TLS_AES_256_GCM_SHA384"); 87#We force an early failure because TLS Proxy doesn't actually support 88#TLS_AES_256_GCM_SHA384. That doesn't matter for this test though. 89$testtype = ILLEGAL_EXT_SECOND_CH; 90$proxy->start(); 91#Check if the PSK is present in the second ClientHello 92$ch2 = ${$proxy->message_list}[2]; 93$ch2seen = defined $ch2 && $ch2->mt() == TLSProxy::Message::MT_CLIENT_HELLO; 94$pskseen = $ch2seen 95 && defined ${$ch2->extension_data}{TLSProxy::Message::EXT_PSK}; 96ok($ch2seen && !$pskseen, "PSK hash does not match"); 97 98#Test 5: Attempt a resume without a sig agls extension. Should succeed because 99# sig algs is not needed in a resumption. 100$proxy->clear(); 101$proxy->clientflags("-sess_in ".$session); 102$proxy->filter(\&remove_sig_algs_filter); 103$proxy->start(); 104ok(TLSProxy::Message->success(), "Remove sig algs"); 105 106unlink $session; 107 108sub modify_psk_filter 109{ 110 my $proxy = shift; 111 my $flight; 112 my $message; 113 114 if ($testtype == PSK_LAST_FIRST_CH) { 115 $flight = 0; 116 } else { 117 $flight = 2; 118 } 119 120 # Only look at the first or second ClientHello 121 return if $proxy->flight != $flight; 122 123 if ($testtype == PSK_LAST_FIRST_CH) { 124 $message = ${$proxy->message_list}[0]; 125 } else { 126 $message = ${$proxy->message_list}[2]; 127 } 128 129 return if (!defined $message 130 || $message->mt != TLSProxy::Message::MT_CLIENT_HELLO); 131 132 if ($testtype == PSK_LAST_FIRST_CH) { 133 $message->set_extension(TLSProxy::Message::EXT_FORCE_LAST, ""); 134 } else { 135 #Deliberately break the connection 136 $message->set_extension(TLSProxy::Message::EXT_SUPPORTED_GROUPS, ""); 137 } 138 $message->repack(); 139} 140 141sub remove_sig_algs_filter 142{ 143 my $proxy = shift; 144 my $message; 145 146 # Only look at the first ClientHello 147 return if $proxy->flight != 0; 148 149 $message = ${$proxy->message_list}[0]; 150 $message->delete_extension(TLSProxy::Message::EXT_SIG_ALGS); 151 $message->repack(); 152} 153