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70-test_tls13kexmodes.t revision 1.1.1.1 
      1 #! /usr/bin/env perl
      2 # Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
      3 #
      4 # Licensed under the OpenSSL license (the "License").  You may not use
      5 # this file except in compliance with the License.  You can obtain a copy
      6 # in the file LICENSE in the source distribution or at
      7 # https://www.openssl.org/source/license.html
      8 
      9 use strict;
     10 use OpenSSL::Test qw/:DEFAULT cmdstr srctop_file srctop_dir bldtop_dir/;
     11 use OpenSSL::Test::Utils;
     12 use File::Temp qw(tempfile);
     13 use TLSProxy::Proxy;
     14 use checkhandshake qw(checkhandshake @handmessages @extensions);
     15 
     16 my $test_name = "test_tls13kexmodes";
     17 setup($test_name);
     18 
     19 plan skip_all => "TLSProxy isn't usable on $^O"
     20     if $^O =~ /^(VMS)$/;
     21 
     22 plan skip_all => "$test_name needs the dynamic engine feature enabled"
     23     if disabled("engine") || disabled("dynamic-engine");
     24 
     25 plan skip_all => "$test_name needs the sock feature enabled"
     26     if disabled("sock");
     27 
     28 plan skip_all => "$test_name needs TLSv1.3 enabled"
     29     if disabled("tls1_3");
     30 
     31 $ENV{OPENSSL_ia32cap} = '~0x200000200000000';
     32 $ENV{CTLOG_FILE} = srctop_file("test", "ct", "log_list.conf");
     33 
     34 
     35 @handmessages = (
     36     [TLSProxy::Message::MT_CLIENT_HELLO,
     37         checkhandshake::ALL_HANDSHAKES],
     38     [TLSProxy::Message::MT_SERVER_HELLO,
     39         checkhandshake::HRR_HANDSHAKE | checkhandshake::HRR_RESUME_HANDSHAKE],
     40     [TLSProxy::Message::MT_CLIENT_HELLO,
     41         checkhandshake::HRR_HANDSHAKE | checkhandshake::HRR_RESUME_HANDSHAKE],
     42     [TLSProxy::Message::MT_SERVER_HELLO,
     43         checkhandshake::ALL_HANDSHAKES],
     44     [TLSProxy::Message::MT_ENCRYPTED_EXTENSIONS,
     45         checkhandshake::ALL_HANDSHAKES],
     46     [TLSProxy::Message::MT_CERTIFICATE_REQUEST,
     47         checkhandshake::CLIENT_AUTH_HANDSHAKE],
     48     [TLSProxy::Message::MT_CERTIFICATE,
     49         checkhandshake::ALL_HANDSHAKES & ~(checkhandshake::RESUME_HANDSHAKE | checkhandshake::HRR_RESUME_HANDSHAKE)],
     50     [TLSProxy::Message::MT_CERTIFICATE_VERIFY,
     51         checkhandshake::ALL_HANDSHAKES & ~(checkhandshake::RESUME_HANDSHAKE | checkhandshake::HRR_RESUME_HANDSHAKE)],
     52     [TLSProxy::Message::MT_FINISHED,
     53         checkhandshake::ALL_HANDSHAKES],
     54     [TLSProxy::Message::MT_CERTIFICATE,
     55         checkhandshake::CLIENT_AUTH_HANDSHAKE],
     56     [TLSProxy::Message::MT_CERTIFICATE_VERIFY,
     57         checkhandshake::CLIENT_AUTH_HANDSHAKE],
     58     [TLSProxy::Message::MT_FINISHED,
     59         checkhandshake::ALL_HANDSHAKES],
     60     [0, 0]
     61 );
     62 
     63 @extensions = (
     64     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SERVER_NAME,
     65         checkhandshake::SERVER_NAME_CLI_EXTENSION],
     66     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_STATUS_REQUEST,
     67         checkhandshake::STATUS_REQUEST_CLI_EXTENSION],
     68     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SUPPORTED_GROUPS,
     69         checkhandshake::DEFAULT_EXTENSIONS],
     70     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_EC_POINT_FORMATS,
     71         checkhandshake::DEFAULT_EXTENSIONS],
     72     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SIG_ALGS,
     73         checkhandshake::DEFAULT_EXTENSIONS],
     74     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_ALPN,
     75         checkhandshake::ALPN_CLI_EXTENSION],
     76     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SCT,
     77         checkhandshake::SCT_CLI_EXTENSION],
     78     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_ENCRYPT_THEN_MAC,
     79         checkhandshake::DEFAULT_EXTENSIONS],
     80     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_EXTENDED_MASTER_SECRET,
     81         checkhandshake::DEFAULT_EXTENSIONS],
     82     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SESSION_TICKET,
     83         checkhandshake::DEFAULT_EXTENSIONS],
     84     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_KEY_SHARE,
     85         checkhandshake::DEFAULT_EXTENSIONS],
     86     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SUPPORTED_VERSIONS,
     87         checkhandshake::DEFAULT_EXTENSIONS],
     88     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_PSK_KEX_MODES,
     89         checkhandshake::PSK_KEX_MODES_EXTENSION],
     90     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_PSK,
     91         checkhandshake::PSK_CLI_EXTENSION],
     92 
     93     [TLSProxy::Message::MT_SERVER_HELLO, TLSProxy::Message::EXT_SUPPORTED_VERSIONS,
     94         checkhandshake::DEFAULT_EXTENSIONS],
     95     [TLSProxy::Message::MT_SERVER_HELLO, TLSProxy::Message::EXT_KEY_SHARE,
     96         checkhandshake::KEY_SHARE_HRR_EXTENSION],
     97 
     98     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SERVER_NAME,
     99         checkhandshake::SERVER_NAME_CLI_EXTENSION],
    100     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_STATUS_REQUEST,
    101         checkhandshake::STATUS_REQUEST_CLI_EXTENSION],
    102     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SUPPORTED_GROUPS,
    103         checkhandshake::DEFAULT_EXTENSIONS],
    104     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_EC_POINT_FORMATS,
    105         checkhandshake::DEFAULT_EXTENSIONS],
    106     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SIG_ALGS,
    107         checkhandshake::DEFAULT_EXTENSIONS],
    108     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_ALPN,
    109         checkhandshake::ALPN_CLI_EXTENSION],
    110     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SCT,
    111         checkhandshake::SCT_CLI_EXTENSION],
    112     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_ENCRYPT_THEN_MAC,
    113         checkhandshake::DEFAULT_EXTENSIONS],
    114     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_EXTENDED_MASTER_SECRET,
    115         checkhandshake::DEFAULT_EXTENSIONS],
    116     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SESSION_TICKET,
    117         checkhandshake::DEFAULT_EXTENSIONS],
    118     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_KEY_SHARE,
    119         checkhandshake::DEFAULT_EXTENSIONS],
    120     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_SUPPORTED_VERSIONS,
    121         checkhandshake::DEFAULT_EXTENSIONS],
    122     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_PSK_KEX_MODES,
    123         checkhandshake::PSK_KEX_MODES_EXTENSION],
    124     [TLSProxy::Message::MT_CLIENT_HELLO, TLSProxy::Message::EXT_PSK,
    125         checkhandshake::PSK_CLI_EXTENSION],
    126 
    127     [TLSProxy::Message::MT_SERVER_HELLO, TLSProxy::Message::EXT_SUPPORTED_VERSIONS,
    128         checkhandshake::DEFAULT_EXTENSIONS],
    129     [TLSProxy::Message::MT_SERVER_HELLO, TLSProxy::Message::EXT_KEY_SHARE,
    130         checkhandshake::KEY_SHARE_SRV_EXTENSION],
    131     [TLSProxy::Message::MT_SERVER_HELLO, TLSProxy::Message::EXT_PSK,
    132         checkhandshake::PSK_SRV_EXTENSION],
    133 
    134     [TLSProxy::Message::MT_CERTIFICATE, TLSProxy::Message::EXT_STATUS_REQUEST,
    135         checkhandshake::STATUS_REQUEST_SRV_EXTENSION],
    136     [0,0,0]
    137 );
    138 
    139 use constant {
    140     DELETE_EXTENSION => 0,
    141     EMPTY_EXTENSION => 1,
    142     NON_DHE_KEX_MODE_ONLY => 2,
    143     DHE_KEX_MODE_ONLY => 3,
    144     UNKNOWN_KEX_MODES => 4,
    145     BOTH_KEX_MODES => 5
    146 };
    147 
    148 my $proxy = TLSProxy::Proxy->new(
    149     undef,
    150     cmdstr(app(["openssl"]), display => 1),
    151     srctop_file("apps", "server.pem"),
    152     (!$ENV{HARNESS_ACTIVE} || $ENV{HARNESS_VERBOSE})
    153 );
    154 
    155 #Test 1: First get a session
    156 (undef, my $session) = tempfile();
    157 $proxy->clientflags("-sess_out ".$session);
    158 $proxy->serverflags("-servername localhost");
    159 $proxy->sessionfile($session);
    160 $proxy->start() or plan skip_all => "Unable to start up Proxy for tests";
    161 plan tests => 11;
    162 ok(TLSProxy::Message->success(), "Initial connection");
    163 
    164 #Test 2: Attempt a resume with no kex modes extension. Should not resume
    165 $proxy->clear();
    166 $proxy->clientflags("-sess_in ".$session);
    167 my $testtype = DELETE_EXTENSION;
    168 $proxy->filter(\&modify_kex_modes_filter);
    169 $proxy->start();
    170 checkhandshake($proxy, checkhandshake::DEFAULT_HANDSHAKE,
    171                checkhandshake::DEFAULT_EXTENSIONS
    172                | checkhandshake::KEY_SHARE_SRV_EXTENSION
    173                | checkhandshake::PSK_CLI_EXTENSION,
    174                "Resume with no kex modes");
    175 
    176 #Test 3: Attempt a resume with empty kex modes extension. Should fail (empty
    177 #        extension is invalid)
    178 $proxy->clear();
    179 $proxy->clientflags("-sess_in ".$session);
    180 $testtype = EMPTY_EXTENSION;
    181 $proxy->start();
    182 ok(TLSProxy::Message->fail(), "Resume with empty kex modes");
    183 
    184 #Test 4: Attempt a resume with non-dhe kex mode only. Should resume without a
    185 #        key_share
    186 $proxy->clear();
    187 $proxy->clientflags("-allow_no_dhe_kex -sess_in ".$session);
    188 $proxy->serverflags("-allow_no_dhe_kex");
    189 $testtype = NON_DHE_KEX_MODE_ONLY;
    190 $proxy->start();
    191 checkhandshake($proxy, checkhandshake::RESUME_HANDSHAKE,
    192                checkhandshake::DEFAULT_EXTENSIONS
    193                | checkhandshake::PSK_KEX_MODES_EXTENSION
    194                | checkhandshake::PSK_CLI_EXTENSION
    195                | checkhandshake::PSK_SRV_EXTENSION,
    196                "Resume with non-dhe kex mode");
    197 
    198 #Test 5: Attempt a resume with dhe kex mode only. Should resume with a key_share
    199 $proxy->clear();
    200 $proxy->clientflags("-sess_in ".$session);
    201 $testtype = DHE_KEX_MODE_ONLY;
    202 $proxy->start();
    203 checkhandshake($proxy, checkhandshake::RESUME_HANDSHAKE,
    204                checkhandshake::DEFAULT_EXTENSIONS
    205                | checkhandshake::PSK_KEX_MODES_EXTENSION
    206                | checkhandshake::KEY_SHARE_SRV_EXTENSION
    207                | checkhandshake::PSK_CLI_EXTENSION
    208                | checkhandshake::PSK_SRV_EXTENSION,
    209                "Resume with non-dhe kex mode");
    210 
    211 #Test 6: Attempt a resume with only unrecognised kex modes. Should not resume
    212 $proxy->clear();
    213 $proxy->clientflags("-sess_in ".$session);
    214 $testtype = UNKNOWN_KEX_MODES;
    215 $proxy->start();
    216 checkhandshake($proxy, checkhandshake::DEFAULT_HANDSHAKE,
    217                checkhandshake::DEFAULT_EXTENSIONS
    218                | checkhandshake::PSK_KEX_MODES_EXTENSION
    219                | checkhandshake::KEY_SHARE_SRV_EXTENSION
    220                | checkhandshake::PSK_CLI_EXTENSION,
    221                "Resume with empty kex modes");
    222 
    223 #Test 7: Attempt a resume with both non-dhe and dhe kex mode. Should resume with
    224 #        a key_share
    225 $proxy->clear();
    226 $proxy->clientflags("-sess_in ".$session);
    227 $testtype = BOTH_KEX_MODES;
    228 $proxy->start();
    229 checkhandshake($proxy, checkhandshake::RESUME_HANDSHAKE,
    230                checkhandshake::DEFAULT_EXTENSIONS
    231                | checkhandshake::PSK_KEX_MODES_EXTENSION
    232                | checkhandshake::KEY_SHARE_SRV_EXTENSION
    233                | checkhandshake::PSK_CLI_EXTENSION
    234                | checkhandshake::PSK_SRV_EXTENSION,
    235                "Resume with non-dhe kex mode");
    236 
    237 #Test 8: Attempt a resume with both non-dhe and dhe kex mode, but unacceptable
    238 #        initial key_share. Should resume with a key_share following an HRR
    239 $proxy->clear();
    240 $proxy->clientflags("-sess_in ".$session);
    241 $proxy->serverflags("-curves P-256");
    242 $testtype = BOTH_KEX_MODES;
    243 $proxy->start();
    244 checkhandshake($proxy, checkhandshake::HRR_RESUME_HANDSHAKE,
    245                checkhandshake::DEFAULT_EXTENSIONS
    246                | checkhandshake::PSK_KEX_MODES_EXTENSION
    247                | checkhandshake::KEY_SHARE_SRV_EXTENSION
    248                | checkhandshake::KEY_SHARE_HRR_EXTENSION
    249                | checkhandshake::PSK_CLI_EXTENSION
    250                | checkhandshake::PSK_SRV_EXTENSION,
    251                "Resume with both kex modes and HRR");
    252 
    253 #Test 9: Attempt a resume with dhe kex mode only and an unacceptable initial
    254 #        key_share. Should resume with a key_share following an HRR
    255 $proxy->clear();
    256 $proxy->clientflags("-sess_in ".$session);
    257 $proxy->serverflags("-curves P-256");
    258 $testtype = DHE_KEX_MODE_ONLY;
    259 $proxy->start();
    260 checkhandshake($proxy, checkhandshake::HRR_RESUME_HANDSHAKE,
    261                checkhandshake::DEFAULT_EXTENSIONS
    262                | checkhandshake::PSK_KEX_MODES_EXTENSION
    263                | checkhandshake::KEY_SHARE_SRV_EXTENSION
    264                | checkhandshake::KEY_SHARE_HRR_EXTENSION
    265                | checkhandshake::PSK_CLI_EXTENSION
    266                | checkhandshake::PSK_SRV_EXTENSION,
    267                "Resume with dhe kex mode and HRR");
    268 
    269 #Test 10: Attempt a resume with both non-dhe and dhe kex mode, unacceptable
    270 #         initial key_share and no overlapping groups. Should resume without a
    271 #         key_share
    272 $proxy->clear();
    273 $proxy->clientflags("-allow_no_dhe_kex -curves P-384 -sess_in ".$session);
    274 $proxy->serverflags("-allow_no_dhe_kex -curves P-256");
    275 $testtype = BOTH_KEX_MODES;
    276 $proxy->start();
    277 checkhandshake($proxy, checkhandshake::RESUME_HANDSHAKE,
    278                checkhandshake::DEFAULT_EXTENSIONS
    279                | checkhandshake::PSK_KEX_MODES_EXTENSION
    280                | checkhandshake::PSK_CLI_EXTENSION
    281                | checkhandshake::PSK_SRV_EXTENSION,
    282                "Resume with both kex modes, no overlapping groups");
    283 
    284 #Test 11: Attempt a resume with dhe kex mode only, unacceptable
    285 #         initial key_share and no overlapping groups. Should fail
    286 $proxy->clear();
    287 $proxy->clientflags("-curves P-384 -sess_in ".$session);
    288 $proxy->serverflags("-curves P-256");
    289 $testtype = DHE_KEX_MODE_ONLY;
    290 $proxy->start();
    291 ok(TLSProxy::Message->fail(), "Resume with dhe kex mode, no overlapping groups");
    292 
    293 unlink $session;
    294 
    295 sub modify_kex_modes_filter
    296 {
    297     my $proxy = shift;
    298 
    299     # We're only interested in the initial ClientHello
    300     return if ($proxy->flight != 0);
    301 
    302     foreach my $message (@{$proxy->message_list}) {
    303         if ($message->mt == TLSProxy::Message::MT_CLIENT_HELLO) {
    304             my $ext;
    305 
    306             if ($testtype == EMPTY_EXTENSION) {
    307                 $ext = pack "C",
    308                     0x00;       #List length
    309             } elsif ($testtype == NON_DHE_KEX_MODE_ONLY) {
    310                 $ext = pack "C2",
    311                     0x01,       #List length
    312                     0x00;       #psk_ke
    313             } elsif ($testtype == DHE_KEX_MODE_ONLY) {
    314                 $ext = pack "C2",
    315                     0x01,       #List length
    316                     0x01;       #psk_dhe_ke
    317             } elsif ($testtype == UNKNOWN_KEX_MODES) {
    318                 $ext = pack "C3",
    319                     0x02,       #List length
    320                     0xfe,       #unknown
    321                     0xff;       #unknown
    322             } elsif ($testtype == BOTH_KEX_MODES) {
    323                 #We deliberately list psk_ke first...should still use psk_dhe_ke
    324                 $ext = pack "C3",
    325                     0x02,       #List length
    326                     0x00,       #psk_ke
    327                     0x01;       #psk_dhe_ke
    328             }
    329 
    330             if ($testtype == DELETE_EXTENSION) {
    331                 $message->delete_extension(
    332                     TLSProxy::Message::EXT_PSK_KEX_MODES);
    333             } else {
    334                 $message->set_extension(
    335                     TLSProxy::Message::EXT_PSK_KEX_MODES, $ext);
    336             }
    337 
    338             $message->repack();
    339         }
    340     }
    341 }
    342