1#! /usr/bin/env perl 2# Copyright 2017-2021 The OpenSSL Project Authors. All Rights Reserved. 3# 4# Licensed under the Apache License 2.0 (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 bldtop_dir/; 11use OpenSSL::Test::Utils; 12use TLSProxy::Proxy; 13 14my $test_name = "test_tls13cookie"; 15setup($test_name); 16 17plan skip_all => "TLSProxy isn't usable on $^O" 18 if $^O =~ /^(VMS)$/; 19 20plan skip_all => "$test_name needs the dynamic engine feature enabled" 21 if disabled("engine") || disabled("dynamic-engine"); 22 23plan skip_all => "$test_name needs the sock feature enabled" 24 if disabled("sock"); 25 26plan skip_all => "$test_name needs TLS1.3 enabled" 27 if disabled("tls1_3") || (disabled("ec") && disabled("dh")); 28 29$ENV{OPENSSL_ia32cap} = '~0x200000200000000'; 30 31use constant { 32 COOKIE_ONLY => 0, 33 COOKIE_AND_KEY_SHARE => 1 34}; 35 36my $proxy = TLSProxy::Proxy->new( 37 undef, 38 cmdstr(app(["openssl"]), display => 1), 39 srctop_file("apps", "server.pem"), 40 (!$ENV{HARNESS_ACTIVE} || $ENV{HARNESS_VERBOSE}) 41); 42 43my $cookieseen = 0; 44my $testtype; 45 46#Test 1: Inserting a cookie into an HRR should see it echoed in the ClientHello 47$testtype = COOKIE_ONLY; 48$proxy->filter(\&cookie_filter); 49$proxy->serverflags("-curves X25519") if !disabled("ec"); 50$proxy->start() or plan skip_all => "Unable to start up Proxy for tests"; 51plan tests => 2; 52SKIP: { 53 skip "EC disabled", 1, if disabled("ec"); 54 ok(TLSProxy::Message->success() && $cookieseen == 1, "Cookie seen"); 55} 56 57 58 59#Test 2: Same as test 1 but should also work where a new key_share is also 60# required 61$testtype = COOKIE_AND_KEY_SHARE; 62$proxy->clear(); 63if (disabled("ec")) { 64 $proxy->clientflags("-curves ffdhe3072:ffdhe2048"); 65 $proxy->serverflags("-curves ffdhe2048"); 66} else { 67 $proxy->clientflags("-curves P-256:X25519"); 68 $proxy->serverflags("-curves X25519"); 69} 70$proxy->start(); 71ok(TLSProxy::Message->success() && $cookieseen == 1, "Cookie seen"); 72 73sub cookie_filter 74{ 75 my $proxy = shift; 76 77 # We're only interested in the HRR and both ClientHellos 78 return if ($proxy->flight > 2); 79 80 my $ext = pack "C8", 81 0x00, 0x06, #Cookie Length 82 0x00, 0x01, #Dummy cookie data (6 bytes) 83 0x02, 0x03, 84 0x04, 0x05; 85 86 foreach my $message (@{$proxy->message_list}) { 87 if ($message->mt == TLSProxy::Message::MT_SERVER_HELLO 88 && ${$message->records}[0]->flight == 1) { 89 $message->delete_extension(TLSProxy::Message::EXT_KEY_SHARE) 90 if ($testtype == COOKIE_ONLY); 91 $message->set_extension(TLSProxy::Message::EXT_COOKIE, $ext); 92 $message->repack(); 93 } elsif ($message->mt == TLSProxy::Message::MT_CLIENT_HELLO) { 94 if (${$message->records}[0]->flight == 0) { 95 if ($testtype == COOKIE_ONLY) { 96 my $ext = pack "C7", 97 0x00, 0x05, #List Length 98 0x00, 0x17, #P-256 99 0x00, 0x01, #key_exchange data length 100 0xff; #Dummy key_share data 101 # Trick the server into thinking we got an unacceptable 102 # key_share 103 $message->set_extension( 104 TLSProxy::Message::EXT_KEY_SHARE, $ext); 105 $message->repack(); 106 } 107 } else { 108 #cmp can behave differently dependent on locale 109 no locale; 110 my $cookie = 111 $message->extension_data->{TLSProxy::Message::EXT_COOKIE}; 112 113 return if !defined($cookie); 114 115 return if ($cookie cmp $ext) != 0; 116 117 $cookieseen = 1; 118 } 119 } 120 } 121} 122