Home | History | Annotate | Line # | Download | only in recipes
70-test_tls13hrr.t revision 1.1.1.1 
      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 
      9 use strict;
     10 use OpenSSL::Test qw/:DEFAULT cmdstr srctop_file bldtop_dir/;
     11 use OpenSSL::Test::Utils;
     12 use TLSProxy::Proxy;
     13 
     14 my $test_name = "test_tls13hrr";
     15 setup($test_name);
     16 
     17 plan skip_all => "TLSProxy isn't usable on $^O"
     18     if $^O =~ /^(VMS)$/;
     19 
     20 plan skip_all => "$test_name needs the dynamic engine feature enabled"
     21     if disabled("engine") || disabled("dynamic-engine");
     22 
     23 plan skip_all => "$test_name needs the sock feature enabled"
     24     if disabled("sock");
     25 
     26 plan skip_all => "$test_name needs TLS1.3 enabled"
     27     if disabled("tls1_3");
     28 
     29 $ENV{OPENSSL_ia32cap} = '~0x200000200000000';
     30 
     31 my $proxy = TLSProxy::Proxy->new(
     32     undef,
     33     cmdstr(app(["openssl"]), display => 1),
     34     srctop_file("apps", "server.pem"),
     35     (!$ENV{HARNESS_ACTIVE} || $ENV{HARNESS_VERBOSE})
     36 );
     37 
     38 use constant {
     39     CHANGE_HRR_CIPHERSUITE => 0,
     40     CHANGE_CH1_CIPHERSUITE => 1
     41 };
     42 
     43 #Test 1: A client should fail if the server changes the ciphersuite between the
     44 #        HRR and the SH
     45 $proxy->filter(\&hrr_filter);
     46 $proxy->serverflags("-curves P-256");
     47 my $testtype = CHANGE_HRR_CIPHERSUITE;
     48 $proxy->start() or plan skip_all => "Unable to start up Proxy for tests";
     49 plan tests => 2;
     50 ok(TLSProxy::Message->fail(), "Server ciphersuite changes");
     51 
     52 #Test 2: It is an error if the client changes the offered ciphersuites so that
     53 #        we end up selecting a different ciphersuite between HRR and the SH
     54 $proxy->clear();
     55 $proxy->serverflags("-curves P-256");
     56 $proxy->ciphersuitess("TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384");
     57 $testtype = CHANGE_CH1_CIPHERSUITE;
     58 $proxy->start();
     59 ok(TLSProxy::Message->fail(), "Client ciphersuite changes");
     60 
     61 sub hrr_filter
     62 {
     63     my $proxy = shift;
     64 
     65     if ($testtype == CHANGE_HRR_CIPHERSUITE) {
     66         # We're only interested in the HRR
     67         if ($proxy->flight != 1) {
     68             return;
     69         }
     70 
     71         my $hrr = ${$proxy->message_list}[1];
     72 
     73         # We will normally only ever select CIPHER_TLS13_AES_128_GCM_SHA256
     74         # because that's what Proxy tells s_server to do. Setting as below means
     75         # the ciphersuite will change will we get the ServerHello
     76         $hrr->ciphersuite(TLSProxy::Message::CIPHER_TLS13_AES_256_GCM_SHA384);
     77         $hrr->repack();
     78         return;
     79     }
     80 
     81     # CHANGE_CH1_CIPHERSUITE
     82     if ($proxy->flight != 0) {
     83         return;
     84     }
     85 
     86     my $ch1 = ${$proxy->message_list}[0];
     87 
     88     # The server will always pick TLS_AES_256_GCM_SHA384
     89     my @ciphersuites = (TLSProxy::Message::CIPHER_TLS13_AES_128_GCM_SHA256);
     90     $ch1->ciphersuite_len(2 * scalar @ciphersuites);
     91     $ch1->ciphersuites(\@ciphersuites);
     92     $ch1->repack();
     93 }
     94