#! /usr/bin/env perl

# Copyright 2015-2018 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_sslskewith0p";

setup($test_name);

plan skip_all => "TLSProxy isn't usable on $^O"

    if $^O =~ /^(VMS)$/;

plan skip_all => "$test_name needs the dynamic engine feature enabled"

    if disabled("engine") || disabled("dynamic-engine");

plan skip_all => "dh is not supported by this OpenSSL build"

    if disabled("dh");

plan skip_all => "$test_name needs the sock feature enabled"

    if disabled("sock");

plan skip_all => "$test_name needs TLS enabled"

    if alldisabled(available_protocols("tls"));

$ENV{OPENSSL_ia32cap} = '~0x200000200000000';

my $proxy = TLSProxy::Proxy->new(

    \&ske_0_p_filter,

    cmdstr(app(["openssl"]), display => 1),

    srctop_file("apps", "server.pem"),

    (!$ENV{HARNESS_ACTIVE} || $ENV{HARNESS_VERBOSE})

);

#We must use an anon DHE cipher for this test

$proxy->cipherc('ADH-AES128-SHA:@SECLEVEL=0');

$proxy->ciphers('ADH-AES128-SHA:@SECLEVEL=0');

$proxy->clientflags("-no_tls1_3");

$proxy->start() or plan skip_all => "Unable to start up Proxy for tests";

plan tests => 1;

ok(TLSProxy::Message->fail, "ServerKeyExchange with 0 p");

sub ske_0_p_filter

{

    my $proxy = shift;

    # We're only interested in the SKE - always in flight 1

    if ($proxy->flight != 1) {

        return;

    }

    foreach my $message (@{$proxy->message_list}) {

        if ($message->mt == TLSProxy::Message::MT_SERVER_KEY_EXCHANGE) {

            #Set p to a value of 0

            $message->p(pack('C', 0));

            $message->repack();

        }

    }

}