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#! /usr/bin/env perl
# Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the OpenSSL license (the "License"). You may not use
# this file except in compliance with the License. You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html
use strict;
use OpenSSL::Test qw/:DEFAULT cmdstr srctop_file bldtop_dir/;
use OpenSSL::Test::Utils;
use TLSProxy::Proxy;
my $test_name = "test_sslrecords";
setup($test_name);
plan skip_all => "TLSProxy isn't usable on $^O"
if $^O =~ /^(VMS|MSWin32)$/;
plan skip_all => "$test_name needs the dynamic engine feature enabled"
if disabled("engine") || disabled("dynamic-engine");
plan skip_all => "$test_name needs the sock feature enabled"
if disabled("sock");
plan skip_all => "$test_name needs TLSv1.2 enabled"
if disabled("tls1_2");
$ENV{OPENSSL_ia32cap} = '~0x200000200000000';
my $proxy = TLSProxy::Proxy->new(
\&add_empty_recs_filter,
cmdstr(app(["openssl"]), display => 1),
srctop_file("apps", "server.pem"),
(!$ENV{HARNESS_ACTIVE} || $ENV{HARNESS_VERBOSE})
);
#Test 1: Injecting out of context empty records should fail
my $content_type = TLSProxy::Record::RT_APPLICATION_DATA;
my $inject_recs_num = 1;
$proxy->start() or plan skip_all => "Unable to start up Proxy for tests";
plan tests => 4;
ok(TLSProxy::Message->fail(), "Out of context empty records test");
#Test 2: Injecting in context empty records should succeed
$proxy->clear();
$content_type = TLSProxy::Record::RT_HANDSHAKE;
$proxy->start();
ok(TLSProxy::Message->success(), "In context empty records test");
#Test 3: Injecting too many in context empty records should fail
$proxy->clear();
#We allow 32 consecutive in context empty records
$inject_recs_num = 33;
$proxy->start();
ok(TLSProxy::Message->fail(), "Too many in context empty records test");
#Test 4: Injecting a fragmented fatal alert should fail. We actually expect no
# alerts to be sent from either side because *we* injected the fatal
# alert, i.e. this will look like a disorderly close
$proxy->clear();
$proxy->filter(\&add_frag_alert_filter);
$proxy->start();
ok(!TLSProxy::Message->end(), "Fragmented alert records test");
sub add_empty_recs_filter
{
my $proxy = shift;
# We're only interested in the initial ClientHello
if ($proxy->flight != 0) {
return;
}
for (my $i = 0; $i < $inject_recs_num; $i++) {
my $record = TLSProxy::Record->new(
0,
$content_type,
TLSProxy::Record::VERS_TLS_1_2,
0,
0,
0,
"",
""
);
push @{$proxy->record_list}, $record;
}
}
sub add_frag_alert_filter
{
my $proxy = shift;
my $byte;
# We're only interested in the initial ClientHello
if ($proxy->flight != 0) {
return;
}
# Add a zero length fragment first
#my $record = TLSProxy::Record->new(
# 0,
# TLSProxy::Record::RT_ALERT,
# TLSProxy::Record::VERS_TLS_1_2,
# 0,
# 0,
# 0,
# "",
# ""
#);
#push @{$proxy->record_list}, $record;
# Now add the alert level (Fatal) as a seperate record
$byte = pack('C', TLSProxy::Message::AL_LEVEL_FATAL);
my $record = TLSProxy::Record->new(
0,
TLSProxy::Record::RT_ALERT,
TLSProxy::Record::VERS_TLS_1_2,
1,
1,
1,
$byte,
$byte
);
push @{$proxy->record_list}, $record;
# And finally the description (Unexpected message) in a third record
$byte = pack('C', TLSProxy::Message::AL_DESC_UNEXPECTED_MESSAGE);
$record = TLSProxy::Record->new(
0,
TLSProxy::Record::RT_ALERT,
TLSProxy::Record::VERS_TLS_1_2,
1,
1,
1,
$byte,
$byte
);
push @{$proxy->record_list}, $record;
}
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