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openssl/util/perl/checkhandshake.pm
Matt Caswell dc5bcb88d8 Teach TLSProxy how to parse CertificateRequest messages 
We also use this in test_tls13messages to check that the extensions we
expect to see in a CertificateRequest are there.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/9780)
2019-09-06 10:07:11 +01:00

233 lines
9.6 KiB
Perl
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#! /usr/bin/env perl
# Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the Apache License 2.0 (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
package checkhandshake;
use OpenSSL::Test qw/:DEFAULT cmdstr srctop_file srctop_dir bldtop_dir/;
use OpenSSL::Test::Utils;
use TLSProxy::Proxy;
use Exporter;
our @ISA = 'Exporter';
our @EXPORT = qw(@handmessages @extensions checkhandshake);
use constant {
DEFAULT_HANDSHAKE => 1,
OCSP_HANDSHAKE => 2,
RESUME_HANDSHAKE => 4,
CLIENT_AUTH_HANDSHAKE => 8,
RENEG_HANDSHAKE => 16,
NPN_HANDSHAKE => 32,
EC_HANDSHAKE => 64,
HRR_HANDSHAKE => 128,
HRR_RESUME_HANDSHAKE => 256,
ALL_HANDSHAKES => 511
};
use constant {
#DEFAULT also includes SESSION_TICKET_SRV_EXTENSION and SERVER_NAME_CLI
DEFAULT_EXTENSIONS => 0x00000007,
SESSION_TICKET_SRV_EXTENSION => 0x00000002,
SERVER_NAME_CLI_EXTENSION => 0x00000004,
SERVER_NAME_SRV_EXTENSION => 0x00000008,
STATUS_REQUEST_CLI_EXTENSION => 0x00000010,
STATUS_REQUEST_SRV_EXTENSION => 0x00000020,
ALPN_CLI_EXTENSION => 0x00000040,
ALPN_SRV_EXTENSION => 0x00000080,
SCT_CLI_EXTENSION => 0x00000100,
SCT_SRV_EXTENSION => 0x00000200,
RENEGOTIATE_CLI_EXTENSION => 0x00000400,
NPN_CLI_EXTENSION => 0x00000800,
NPN_SRV_EXTENSION => 0x00001000,
SRP_CLI_EXTENSION => 0x00002000,
#Client side for ec point formats is a default extension
EC_POINT_FORMAT_SRV_EXTENSION => 0x00004000,
PSK_CLI_EXTENSION => 0x00008000,
PSK_SRV_EXTENSION => 0x00010000,
KEY_SHARE_SRV_EXTENSION => 0x00020000,
PSK_KEX_MODES_EXTENSION => 0x00040000,
KEY_SHARE_HRR_EXTENSION => 0x00080000,
SUPPORTED_GROUPS_SRV_EXTENSION => 0x00100000,
POST_HANDSHAKE_AUTH_CLI_EXTENSION => 0x00200000
};
our @handmessages = ();
our @extensions = ();
sub checkhandshake($$$$)
{
my ($proxy, $handtype, $exttype, $testname) = @_;
subtest $testname => sub {
my $loop = 0;
my $numtests;
my $extcount;
my $clienthelloseen = 0;
my $lastmt = 0;
my $numsh = 0;
if (TLSProxy::Proxy::is_tls13()) {
#How many ServerHellos are we expecting?
for ($numtests = 0; $handmessages[$loop][1] != 0; $loop++) {
next if (($handmessages[$loop][1] & $handtype) == 0);
$numsh++ if ($lastmt != TLSProxy::Message::MT_SERVER_HELLO
&& $handmessages[$loop][0] == TLSProxy::Message::MT_SERVER_HELLO);
$lastmt = $handmessages[$loop][0];
}
}
#First count the number of tests
my $nextmess = 0;
my $message = undef;
my $chnum = 0;
my $shnum = 0;
if (!TLSProxy::Proxy::is_tls13()) {
# In non-TLSv1.3 we always treat reneg CH and SH like the first CH
# and SH
$chnum = 1;
$shnum = 1;
}
#If we're only expecting one ServerHello out of two then we skip the
#first ServerHello in the list completely
$shnum++ if ($numsh == 1 && TLSProxy::Proxy::is_tls13());
$loop = 0;
for ($numtests = 0; $handmessages[$loop][1] != 0; $loop++) {
next if (($handmessages[$loop][1] & $handtype) == 0);
if (scalar @{$proxy->message_list} > $nextmess) {
$message = ${$proxy->message_list}[$nextmess];
$nextmess++;
} else {
$message = undef;
}
$numtests++;
next if (!defined $message);
if (TLSProxy::Proxy::is_tls13()) {
$chnum++ if $message->mt() == TLSProxy::Message::MT_CLIENT_HELLO;
$shnum++ if $message->mt() == TLSProxy::Message::MT_SERVER_HELLO;
}
next if ($message->mt() != TLSProxy::Message::MT_CLIENT_HELLO
&& $message->mt() != TLSProxy::Message::MT_SERVER_HELLO
&& $message->mt() !=
TLSProxy::Message::MT_ENCRYPTED_EXTENSIONS
&& $message->mt() != TLSProxy::Message::MT_CERTIFICATE
&& $message->mt() != TLSProxy::Message::MT_CERTIFICATE_REQUEST);
next if $message->mt() == TLSProxy::Message::MT_CERTIFICATE
&& !TLSProxy::Proxy::is_tls13();
my $extchnum = 1;
my $extshnum = 1;
for (my $extloop = 0;
$extensions[$extloop][3] != 0;
$extloop++) {
$extchnum = 2 if $extensions[$extloop][0] != TLSProxy::Message::MT_CLIENT_HELLO
&& TLSProxy::Proxy::is_tls13();
$extshnum = 2 if $extensions[$extloop][0] != TLSProxy::Message::MT_SERVER_HELLO
&& $extchnum == 2;
next if $extensions[$extloop][0] == TLSProxy::Message::MT_CLIENT_HELLO
&& $extchnum != $chnum;
next if $extensions[$extloop][0] == TLSProxy::Message::MT_SERVER_HELLO
&& $extshnum != $shnum;
next if ($message->mt() != $extensions[$extloop][0]);
next if ($message->server() != $extensions[$extloop][2]);
$numtests++;
}
$numtests++;
}
plan tests => $numtests;
$nextmess = 0;
$message = undef;
if (TLSProxy::Proxy::is_tls13()) {
$chnum = 0;
$shnum = 0;
} else {
# In non-TLSv1.3 we always treat reneg CH and SH like the first CH
# and SH
$chnum = 1;
$shnum = 1;
}
#If we're only expecting one ServerHello out of two then we skip the
#first ServerHello in the list completely
$shnum++ if ($numsh == 1 && TLSProxy::Proxy::is_tls13());
for ($loop = 0; $handmessages[$loop][1] != 0; $loop++) {
next if (($handmessages[$loop][1] & $handtype) == 0);
if (scalar @{$proxy->message_list} > $nextmess) {
$message = ${$proxy->message_list}[$nextmess];
$nextmess++;
} else {
$message = undef;
}
if (!defined $message) {
fail("Message type check. Got nothing, expected "
.$handmessages[$loop][0]);
next;
} else {
ok($message->mt == $handmessages[$loop][0],
"Message type check. Got ".$message->mt
.", expected ".$handmessages[$loop][0]);
}
if (TLSProxy::Proxy::is_tls13()) {
$chnum++ if $message->mt() == TLSProxy::Message::MT_CLIENT_HELLO;
$shnum++ if $message->mt() == TLSProxy::Message::MT_SERVER_HELLO;
}
next if ($message->mt() != TLSProxy::Message::MT_CLIENT_HELLO
&& $message->mt() != TLSProxy::Message::MT_SERVER_HELLO
&& $message->mt() !=
TLSProxy::Message::MT_ENCRYPTED_EXTENSIONS
&& $message->mt() != TLSProxy::Message::MT_CERTIFICATE
&& $message->mt() != TLSProxy::Message::MT_CERTIFICATE_REQUEST);
next if $message->mt() == TLSProxy::Message::MT_CERTIFICATE
&& !TLSProxy::Proxy::is_tls13();
if ($message->mt() == TLSProxy::Message::MT_CLIENT_HELLO) {
#Add renegotiate extension we will expect if renegotiating
$exttype |= RENEGOTIATE_CLI_EXTENSION
if ($clienthelloseen && !TLSProxy::Proxy::is_tls13());
$clienthelloseen = 1;
}
#Now check that we saw the extensions we expected
my $msgexts = $message->extension_data();
my $extchnum = 1;
my $extshnum = 1;
for (my $extloop = 0, $extcount = 0; $extensions[$extloop][3] != 0;
$extloop++) {
#In TLSv1.3 we can have two ClientHellos if there has been a
#HelloRetryRequest, and they may have different extensions. Skip
#if these are extensions for a different ClientHello
$extchnum = 2 if $extensions[$extloop][0] != TLSProxy::Message::MT_CLIENT_HELLO
&& TLSProxy::Proxy::is_tls13();
$extshnum = 2 if $extensions[$extloop][0] != TLSProxy::Message::MT_SERVER_HELLO
&& $extchnum == 2;
next if $extensions[$extloop][0] == TLSProxy::Message::MT_CLIENT_HELLO
&& $extchnum != $chnum;
next if $extensions[$extloop][0] == TLSProxy::Message::MT_SERVER_HELLO
&& $extshnum != $shnum;
next if ($message->mt() != $extensions[$extloop][0]);
next if ($message->server() != $extensions[$extloop][2]);
ok (($extensions[$extloop][3] & $exttype) == 0
|| defined ($msgexts->{$extensions[$extloop][1]}),
"Extension presence check (Message: ".$message->mt()
." Extension: ".($extensions[$extloop][3] & $exttype).", "
.$extloop.")");
$extcount++ if (($extensions[$extloop][3] & $exttype) != 0);
}
ok($extcount == keys %$msgexts, "Extensions count mismatch ("
.$extcount.", ".(keys %$msgexts)
.")");
}
}
}
1;
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