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c35cb287 | 1 | #! /usr/bin/env perl |
6738bf14 | 2 | # Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved. |
c35cb287 MC |
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" | |
c5856878 | 18 | if $^O =~ /^(VMS)$/; |
c35cb287 MC |
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->ciphers("TLS13-AES-128-GCM-SHA256:TLS13-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 prefers TLS13-AES-256-GCM-SHA384 so it will pick that next | |
89 | # time around | |
90 | my @ciphersuites = (TLSProxy::Message::CIPHER_TLS13_AES_128_GCM_SHA256); | |
91 | $ch1->ciphersuite_len(2 * scalar @ciphersuites); | |
92 | $ch1->ciphersuites(\@ciphersuites); | |
93 | $ch1->repack(); | |
94 | } |