141 lines
4.2 KiB
Perl
141 lines
4.2 KiB
Perl
#! /usr/bin/env perl
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# Copyright 2017-2022 The OpenSSL Project Authors. All Rights Reserved.
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#
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# Licensed under the OpenSSL license (the "License"). You may not use
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# this file except in compliance with the License. You can obtain a copy
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# in the file LICENSE in the source distribution or at
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# https://www.openssl.org/source/license.html
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use strict;
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use OpenSSL::Test qw/:DEFAULT cmdstr srctop_file bldtop_dir/;
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use OpenSSL::Test::Utils;
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use TLSProxy::Proxy;
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my $test_name = "test_tls13hrr";
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setup($test_name);
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plan skip_all => "TLSProxy isn't usable on $^O"
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if $^O =~ /^(VMS)$/;
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plan skip_all => "$test_name needs the dynamic engine feature enabled"
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if disabled("engine") || disabled("dynamic-engine");
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plan skip_all => "$test_name needs the sock feature enabled"
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if disabled("sock");
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plan skip_all => "$test_name needs TLS1.3 enabled"
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if disabled("tls1_3");
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$ENV{OPENSSL_ia32cap} = '~0x200000200000000';
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my $proxy = TLSProxy::Proxy->new(
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undef,
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cmdstr(app(["openssl"]), display => 1),
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srctop_file("apps", "server.pem"),
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(!$ENV{HARNESS_ACTIVE} || $ENV{HARNESS_VERBOSE})
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);
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use constant {
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CHANGE_HRR_CIPHERSUITE => 0,
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CHANGE_CH1_CIPHERSUITE => 1,
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DUPLICATE_HRR => 2
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};
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#Test 1: A client should fail if the server changes the ciphersuite between the
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# HRR and the SH
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$proxy->filter(\&hrr_filter);
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$proxy->serverflags("-curves P-256");
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my $testtype = CHANGE_HRR_CIPHERSUITE;
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$proxy->start() or plan skip_all => "Unable to start up Proxy for tests";
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plan tests => 3;
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ok(TLSProxy::Message->fail(), "Server ciphersuite changes");
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#Test 2: It is an error if the client changes the offered ciphersuites so that
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# we end up selecting a different ciphersuite between HRR and the SH
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$proxy->clear();
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$proxy->serverflags("-curves P-256");
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$proxy->ciphersuitess("TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384");
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$testtype = CHANGE_CH1_CIPHERSUITE;
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$proxy->start();
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ok(TLSProxy::Message->fail(), "Client ciphersuite changes");
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#Test 3: A client should fail with unexpected_message alert if the server
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# sends more than 1 HRR
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my $fatal_alert = 0;
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$proxy->clear();
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if (disabled("ec")) {
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$proxy->serverflags("-curves ffdhe3072");
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} else {
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$proxy->serverflags("-curves P-256");
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}
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$testtype = DUPLICATE_HRR;
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$proxy->start();
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ok($fatal_alert, "Server duplicated HRR");
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sub hrr_filter
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{
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my $proxy = shift;
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if ($testtype == CHANGE_HRR_CIPHERSUITE) {
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# We're only interested in the HRR
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if ($proxy->flight != 1) {
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return;
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}
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my $hrr = ${$proxy->message_list}[1];
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# We will normally only ever select CIPHER_TLS13_AES_128_GCM_SHA256
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# because that's what Proxy tells s_server to do. Setting as below means
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# the ciphersuite will change will we get the ServerHello
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$hrr->ciphersuite(TLSProxy::Message::CIPHER_TLS13_AES_256_GCM_SHA384);
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$hrr->repack();
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return;
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}
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if ($testtype == DUPLICATE_HRR) {
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# We're only interested in the HRR
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# and the unexpected_message alert from client
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if ($proxy->flight == 4) {
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$fatal_alert = 1
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if @{$proxy->record_list}[-1]->is_fatal_alert(0) == 10;
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return;
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}
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if ($proxy->flight != 3) {
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return;
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}
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# Find ServerHello record (HRR actually) and insert after that
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my $i;
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for ($i = 0; ${$proxy->record_list}[$i]->flight() < 1; $i++) {
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next;
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}
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my $hrr_record = ${$proxy->record_list}[$i];
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my $dup_hrr = TLSProxy::Record->new(3,
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$hrr_record->content_type(),
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$hrr_record->version(),
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$hrr_record->len(),
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$hrr_record->sslv2(),
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$hrr_record->len_real(),
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$hrr_record->decrypt_len(),
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$hrr_record->data(),
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$hrr_record->decrypt_data());
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$i++;
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splice @{$proxy->record_list}, $i, 0, $dup_hrr;
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return;
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}
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# CHANGE_CH1_CIPHERSUITE
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if ($proxy->flight != 0) {
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return;
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}
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my $ch1 = ${$proxy->message_list}[0];
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# The server will always pick TLS_AES_256_GCM_SHA384
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my @ciphersuites = (TLSProxy::Message::CIPHER_TLS13_AES_128_GCM_SHA256);
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$ch1->ciphersuite_len(2 * scalar @ciphersuites);
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$ch1->ciphersuites(\@ciphersuites);
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$ch1->repack();
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}
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