| 1 | #! /usr/bin/env perl
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| 2 | # Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | #
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| 4 | # Licensed under the Apache License 2.0 (the "License"). You may not use
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| 5 | # this file except in compliance with the License. You can obtain a copy
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| 6 | # in the file LICENSE in the source distribution or at
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| 7 | # https://www.openssl.org/source/license.html
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| 8 |
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| 9 | package checkhandshake;
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| 10 |
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| 11 | use OpenSSL::Test qw/:DEFAULT cmdstr srctop_file srctop_dir bldtop_dir/;
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| 12 | use OpenSSL::Test::Utils;
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| 13 | use TLSProxy::Proxy;
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| 14 |
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| 15 | use Exporter;
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| 16 | our @ISA = 'Exporter';
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| 17 | our @EXPORT = qw(@handmessages @extensions checkhandshake);
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| 18 |
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| 19 | use constant {
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| 20 | DEFAULT_HANDSHAKE => 1,
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| 21 | OCSP_HANDSHAKE => 2,
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| 22 | RESUME_HANDSHAKE => 4,
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| 23 | CLIENT_AUTH_HANDSHAKE => 8,
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| 24 | RENEG_HANDSHAKE => 16,
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| 25 | NPN_HANDSHAKE => 32,
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| 26 | EC_HANDSHAKE => 64,
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| 27 | HRR_HANDSHAKE => 128,
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| 28 | HRR_RESUME_HANDSHAKE => 256,
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| 29 |
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| 30 | ALL_HANDSHAKES => 511
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| 31 | };
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| 32 |
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| 33 | use constant {
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| 34 | #DEFAULT also includes SESSION_TICKET_SRV_EXTENSION and SERVER_NAME_CLI
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| 35 | DEFAULT_EXTENSIONS => 0x00000007,
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| 36 | SESSION_TICKET_SRV_EXTENSION => 0x00000002,
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| 37 | SERVER_NAME_CLI_EXTENSION => 0x00000004,
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| 38 | SERVER_NAME_SRV_EXTENSION => 0x00000008,
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| 39 | STATUS_REQUEST_CLI_EXTENSION => 0x00000010,
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| 40 | STATUS_REQUEST_SRV_EXTENSION => 0x00000020,
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| 41 | ALPN_CLI_EXTENSION => 0x00000040,
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| 42 | ALPN_SRV_EXTENSION => 0x00000080,
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| 43 | SCT_CLI_EXTENSION => 0x00000100,
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| 44 | SCT_SRV_EXTENSION => 0x00000200,
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| 45 | RENEGOTIATE_CLI_EXTENSION => 0x00000400,
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| 46 | NPN_CLI_EXTENSION => 0x00000800,
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| 47 | NPN_SRV_EXTENSION => 0x00001000,
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| 48 | SRP_CLI_EXTENSION => 0x00002000,
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| 49 | #Client side for ec point formats is a default extension
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| 50 | EC_POINT_FORMAT_SRV_EXTENSION => 0x00004000,
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| 51 | PSK_CLI_EXTENSION => 0x00008000,
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| 52 | PSK_SRV_EXTENSION => 0x00010000,
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| 53 | KEY_SHARE_SRV_EXTENSION => 0x00020000,
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| 54 | PSK_KEX_MODES_EXTENSION => 0x00040000,
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| 55 | KEY_SHARE_HRR_EXTENSION => 0x00080000,
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| 56 | SUPPORTED_GROUPS_SRV_EXTENSION => 0x00100000,
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| 57 | POST_HANDSHAKE_AUTH_CLI_EXTENSION => 0x00200000
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| 58 | };
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| 59 |
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| 60 | our @handmessages = ();
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| 61 | our @extensions = ();
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| 62 |
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| 63 | sub checkhandshake($$$$)
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| 64 | {
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| 65 | my ($proxy, $handtype, $exttype, $testname) = @_;
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| 66 |
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| 67 | subtest $testname => sub {
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| 68 | my $loop = 0;
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| 69 | my $numtests;
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| 70 | my $extcount;
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| 71 | my $clienthelloseen = 0;
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| 72 |
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| 73 | my $lastmt = 0;
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| 74 | my $numsh = 0;
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| 75 | if (TLSProxy::Proxy::is_tls13()) {
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| 76 | #How many ServerHellos are we expecting?
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| 77 | for ($numtests = 0; $handmessages[$loop][1] != 0; $loop++) {
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| 78 | next if (($handmessages[$loop][1] & $handtype) == 0);
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| 79 | $numsh++ if ($lastmt != TLSProxy::Message::MT_SERVER_HELLO
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| 80 | && $handmessages[$loop][0] == TLSProxy::Message::MT_SERVER_HELLO);
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| 81 | $lastmt = $handmessages[$loop][0];
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| 82 | }
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| 83 | }
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| 84 |
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| 85 | #First count the number of tests
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| 86 | my $nextmess = 0;
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| 87 | my $message = undef;
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| 88 | my $chnum = 0;
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| 89 | my $shnum = 0;
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| 90 | if (!TLSProxy::Proxy::is_tls13()) {
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| 91 | # In non-TLSv1.3 we always treat reneg CH and SH like the first CH
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| 92 | # and SH
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| 93 | $chnum = 1;
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| 94 | $shnum = 1;
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| 95 | }
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| 96 | #If we're only expecting one ServerHello out of two then we skip the
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| 97 | #first ServerHello in the list completely
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| 98 | $shnum++ if ($numsh == 1 && TLSProxy::Proxy::is_tls13());
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| 99 | $loop = 0;
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| 100 | for ($numtests = 0; $handmessages[$loop][1] != 0; $loop++) {
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| 101 | next if (($handmessages[$loop][1] & $handtype) == 0);
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| 102 | if (scalar @{$proxy->message_list} > $nextmess) {
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| 103 | $message = ${$proxy->message_list}[$nextmess];
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| 104 | $nextmess++;
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| 105 | } else {
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| 106 | $message = undef;
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| 107 | }
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| 108 | $numtests++;
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| 109 |
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| 110 | next if (!defined $message);
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| 111 | if (TLSProxy::Proxy::is_tls13()) {
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| 112 | $chnum++ if $message->mt() == TLSProxy::Message::MT_CLIENT_HELLO;
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| 113 | $shnum++ if $message->mt() == TLSProxy::Message::MT_SERVER_HELLO;
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| 114 | }
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| 115 | next if ($message->mt() != TLSProxy::Message::MT_CLIENT_HELLO
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| 116 | && $message->mt() != TLSProxy::Message::MT_SERVER_HELLO
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| 117 | && $message->mt() !=
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| 118 | TLSProxy::Message::MT_ENCRYPTED_EXTENSIONS
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| 119 | && $message->mt() != TLSProxy::Message::MT_CERTIFICATE
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| 120 | && $message->mt() != TLSProxy::Message::MT_CERTIFICATE_REQUEST);
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| 121 |
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| 122 | next if $message->mt() == TLSProxy::Message::MT_CERTIFICATE
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| 123 | && !TLSProxy::Proxy::is_tls13();
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| 124 |
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| 125 | my $extchnum = 1;
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| 126 | my $extshnum = 1;
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| 127 | for (my $extloop = 0;
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| 128 | $extensions[$extloop][3] != 0;
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| 129 | $extloop++) {
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| 130 | $extchnum = 2 if $extensions[$extloop][0] != TLSProxy::Message::MT_CLIENT_HELLO
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| 131 | && TLSProxy::Proxy::is_tls13();
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| 132 | $extshnum = 2 if $extensions[$extloop][0] != TLSProxy::Message::MT_SERVER_HELLO
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| 133 | && $extchnum == 2;
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| 134 | next if $extensions[$extloop][0] == TLSProxy::Message::MT_CLIENT_HELLO
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| 135 | && $extchnum != $chnum;
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| 136 | next if $extensions[$extloop][0] == TLSProxy::Message::MT_SERVER_HELLO
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| 137 | && $extshnum != $shnum;
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| 138 | next if ($message->mt() != $extensions[$extloop][0]);
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| 139 | next if ($message->server() != $extensions[$extloop][2]);
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| 140 | $numtests++;
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| 141 | }
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| 142 | $numtests++;
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| 143 | }
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| 144 |
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| 145 | plan tests => $numtests;
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| 146 |
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| 147 | $nextmess = 0;
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| 148 | $message = undef;
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| 149 | if (TLSProxy::Proxy::is_tls13()) {
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| 150 | $chnum = 0;
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| 151 | $shnum = 0;
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| 152 | } else {
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| 153 | # In non-TLSv1.3 we always treat reneg CH and SH like the first CH
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| 154 | # and SH
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| 155 | $chnum = 1;
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| 156 | $shnum = 1;
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| 157 | }
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| 158 | #If we're only expecting one ServerHello out of two then we skip the
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| 159 | #first ServerHello in the list completely
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| 160 | $shnum++ if ($numsh == 1 && TLSProxy::Proxy::is_tls13());
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| 161 | for ($loop = 0; $handmessages[$loop][1] != 0; $loop++) {
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| 162 | next if (($handmessages[$loop][1] & $handtype) == 0);
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| 163 | if (scalar @{$proxy->message_list} > $nextmess) {
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| 164 | $message = ${$proxy->message_list}[$nextmess];
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| 165 | $nextmess++;
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| 166 | } else {
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| 167 | $message = undef;
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| 168 | }
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| 169 | if (!defined $message) {
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| 170 | fail("Message type check. Got nothing, expected "
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| 171 | .$handmessages[$loop][0]);
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| 172 | next;
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| 173 | } else {
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| 174 | ok($message->mt == $handmessages[$loop][0],
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| 175 | "Message type check. Got ".$message->mt
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| 176 | .", expected ".$handmessages[$loop][0]);
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| 177 | }
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| 178 | if (TLSProxy::Proxy::is_tls13()) {
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| 179 | $chnum++ if $message->mt() == TLSProxy::Message::MT_CLIENT_HELLO;
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| 180 | $shnum++ if $message->mt() == TLSProxy::Message::MT_SERVER_HELLO;
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| 181 | }
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| 182 |
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| 183 | next if ($message->mt() != TLSProxy::Message::MT_CLIENT_HELLO
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| 184 | && $message->mt() != TLSProxy::Message::MT_SERVER_HELLO
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| 185 | && $message->mt() !=
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| 186 | TLSProxy::Message::MT_ENCRYPTED_EXTENSIONS
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| 187 | && $message->mt() != TLSProxy::Message::MT_CERTIFICATE
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| 188 | && $message->mt() != TLSProxy::Message::MT_CERTIFICATE_REQUEST);
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| 189 |
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| 190 | next if $message->mt() == TLSProxy::Message::MT_CERTIFICATE
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| 191 | && !TLSProxy::Proxy::is_tls13();
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| 192 |
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| 193 | if ($message->mt() == TLSProxy::Message::MT_CLIENT_HELLO) {
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| 194 | #Add renegotiate extension we will expect if renegotiating
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| 195 | $exttype |= RENEGOTIATE_CLI_EXTENSION
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| 196 | if ($clienthelloseen && !TLSProxy::Proxy::is_tls13());
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| 197 | $clienthelloseen = 1;
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| 198 | }
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| 199 | #Now check that we saw the extensions we expected
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| 200 | my $msgexts = $message->extension_data();
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| 201 | my $extchnum = 1;
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| 202 | my $extshnum = 1;
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| 203 | for (my $extloop = 0, $extcount = 0; $extensions[$extloop][3] != 0;
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| 204 | $extloop++) {
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| 205 | #In TLSv1.3 we can have two ClientHellos if there has been a
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| 206 | #HelloRetryRequest, and they may have different extensions. Skip
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| 207 | #if these are extensions for a different ClientHello
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| 208 | $extchnum = 2 if $extensions[$extloop][0] != TLSProxy::Message::MT_CLIENT_HELLO
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| 209 | && TLSProxy::Proxy::is_tls13();
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| 210 | $extshnum = 2 if $extensions[$extloop][0] != TLSProxy::Message::MT_SERVER_HELLO
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| 211 | && $extchnum == 2;
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| 212 | next if $extensions[$extloop][0] == TLSProxy::Message::MT_CLIENT_HELLO
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| 213 | && $extchnum != $chnum;
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| 214 | next if $extensions[$extloop][0] == TLSProxy::Message::MT_SERVER_HELLO
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| 215 | && $extshnum != $shnum;
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| 216 | next if ($message->mt() != $extensions[$extloop][0]);
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| 217 | next if ($message->server() != $extensions[$extloop][2]);
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| 218 | ok (($extensions[$extloop][3] & $exttype) == 0
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| 219 | || defined ($msgexts->{$extensions[$extloop][1]}),
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| 220 | "Extension presence check (Message: ".$message->mt()
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| 221 | ." Extension: ".($extensions[$extloop][3] & $exttype).", "
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| 222 | .$extloop.")");
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| 223 | $extcount++ if (($extensions[$extloop][3] & $exttype) != 0);
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| 224 | }
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| 225 | ok($extcount == keys %$msgexts, "Extensions count mismatch ("
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| 226 | .$extcount.", ".(keys %$msgexts)
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| 227 | .")");
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| 228 | }
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| 229 | }
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| 230 | }
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| 231 |
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| 232 | 1;
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