test/ssl_test.c

   1 /*
   2  * Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (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
  10 #include <stdio.h>
  11 #include <string.h>
  12
  13 #include <openssl/conf.h>
  14 #include <openssl/err.h>
  15 #include <openssl/ssl.h>
  16
  17 #include "handshake_helper.h"
  18 #include "ssl_test_ctx.h"
  19 #include "testutil.h"
  20
  21 static CONF *conf = NULL;
  22
  23 /* Currently the section names are of the form test-<number>, e.g. test-15. */
  24 #define MAX_TESTCASE_NAME_LENGTH 100
  25
  26 static const char *print_alert(int alert)
  27 {
  28     return alert ? SSL_alert_desc_string_long(alert) : "no alert";
  29 }
  30
  31 static int check_result(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
  32 {
  33     if (!TEST_int_eq(result->result, test_ctx->expected_result)) {
  34         TEST_info("ExpectedResult mismatch: expected %s, got %s.",
  35                   ssl_test_result_name(test_ctx->expected_result),
  36                   ssl_test_result_name(result->result));
  37         return 0;
  38     }
  39     return 1;
  40 }
  41
  42 static int check_alerts(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
  43 {
  44     if (!TEST_int_eq(result->client_alert_sent,
  45                      result->client_alert_received)) {
  46         TEST_info("Client sent alert %s but server received %s.",
  47                   print_alert(result->client_alert_sent),
  48                   print_alert(result->client_alert_received));
  49         /*
  50          * We can't bail here because the peer doesn't always get far enough
  51          * to process a received alert. Specifically, in protocol version
  52          * negotiation tests, we have the following scenario.
  53          * Client supports TLS v1.2 only; Server supports TLS v1.1.
  54          * Client proposes TLS v1.2; server responds with 1.1;
  55          * Client now sends a protocol alert, using TLS v1.2 in the header.
  56          * The server, however, rejects the alert because of version mismatch
  57          * in the record layer; therefore, the server appears to never
  58          * receive the alert.
  59          */
  60         /* return 0; */
  61     }
  62
  63     if (!TEST_int_eq(result->server_alert_sent,
  64                      result->server_alert_received)) {
  65         TEST_info("Server sent alert %s but client received %s.",
  66                   print_alert(result->server_alert_sent),
  67                   print_alert(result->server_alert_received));
  68         /* return 0; */
  69     }
  70
  71     /* Tolerate an alert if one wasn't explicitly specified in the test. */
  72     if (test_ctx->expected_client_alert
  73         /*
  74          * The info callback alert value is computed as
  75          * (s->s3->send_alert[0] << 8) | s->s3->send_alert[1]
  76          * where the low byte is the alert code and the high byte is other stuff.
  77          */
  78         && (result->client_alert_sent & 0xff) != test_ctx->expected_client_alert) {
  79         TEST_error("ClientAlert mismatch: expected %s, got %s.",
  80                    print_alert(test_ctx->expected_client_alert),
  81                    print_alert(result->client_alert_sent));
  82         return 0;
  83     }
  84
  85     if (test_ctx->expected_server_alert
  86         && (result->server_alert_sent & 0xff) != test_ctx->expected_server_alert) {
  87         TEST_error("ServerAlert mismatch: expected %s, got %s.",
  88                    print_alert(test_ctx->expected_server_alert),
  89                    print_alert(result->server_alert_sent));
  90         return 0;
  91     }
  92
  93     if (!TEST_int_le(result->client_num_fatal_alerts_sent, 1))
  94         return 0;
  95     if (!TEST_int_le(result->server_num_fatal_alerts_sent, 1))
  96         return 0;
  97     return 1;
  98 }
  99
 100 static int check_protocol(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
 101 {
 102     if (!TEST_int_eq(result->client_protocol, result->server_protocol)) {
 103         TEST_info("Client has protocol %s but server has %s.",
 104                   ssl_protocol_name(result->client_protocol),
 105                   ssl_protocol_name(result->server_protocol));
 106         return 0;
 107     }
 108
 109     if (test_ctx->expected_protocol) {
 110         if (!TEST_int_eq(result->client_protocol,
 111                          test_ctx->expected_protocol)) {
 112             TEST_info("Protocol mismatch: expected %s, got %s.\n",
 113                       ssl_protocol_name(test_ctx->expected_protocol),
 114                       ssl_protocol_name(result->client_protocol));
 115             return 0;
 116         }
 117     }
 118     return 1;
 119 }
 120
 121 static int check_servername(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
 122 {
 123     if (!TEST_int_eq(result->servername, test_ctx->expected_servername)) {
 124       TEST_info("Client ServerName mismatch, expected %s, got %s.",
 125                 ssl_servername_name(test_ctx->expected_servername),
 126                 ssl_servername_name(result->servername));
 127       return 0;
 128     }
 129   return 1;
 130 }
 131
 132 static int check_session_ticket(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
 133 {
 134     if (test_ctx->session_ticket_expected == SSL_TEST_SESSION_TICKET_IGNORE)
 135         return 1;
 136     if (!TEST_int_eq(result->session_ticket,
 137                      test_ctx->session_ticket_expected)) {
 138         TEST_info("Client SessionTicketExpected mismatch, expected %s, got %s.",
 139                   ssl_session_ticket_name(test_ctx->session_ticket_expected),
 140                   ssl_session_ticket_name(result->session_ticket));
 141         return 0;
 142     }
 143     return 1;
 144 }
 145
 146 static int check_session_id(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
 147 {
 148     if (test_ctx->session_id_expected == SSL_TEST_SESSION_ID_IGNORE)
 149         return 1;
 150     if (!TEST_int_eq(result->session_id, test_ctx->session_id_expected)) {
 151         TEST_info("Client SessionIdExpected mismatch, expected %s, got %s\n.",
 152                 ssl_session_id_name(test_ctx->session_id_expected),
 153                 ssl_session_id_name(result->session_id));
 154         return 0;
 155     }
 156     return 1;
 157 }
 158
 159 static int check_compression(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
 160 {
 161     if (!TEST_int_eq(result->compression, test_ctx->compression_expected))
 162         return 0;
 163     return 1;
 164 }
 165 #ifndef OPENSSL_NO_NEXTPROTONEG
 166 static int check_npn(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
 167 {
 168     int ret = 1;
 169     if (!TEST_str_eq(result->client_npn_negotiated,
 170                      result->server_npn_negotiated))
 171         ret = 0;
 172     if (!TEST_str_eq(test_ctx->expected_npn_protocol,
 173                      result->client_npn_negotiated))
 174         ret = 0;
 175     return ret;
 176 }
 177 #endif
 178
 179 static int check_alpn(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
 180 {
 181     int ret = 1;
 182     if (!TEST_str_eq(result->client_alpn_negotiated,
 183                      result->server_alpn_negotiated))
 184         ret = 0;
 185     if (!TEST_str_eq(test_ctx->expected_alpn_protocol,
 186                      result->client_alpn_negotiated))
 187         ret = 0;
 188     return ret;
 189 }
 190
 191 static int check_session_ticket_app_data(HANDSHAKE_RESULT *result,
 192                                          SSL_TEST_CTX *test_ctx)
 193 {
 194     size_t result_len = 0;
 195     size_t expected_len = 0;
 196
 197     /* consider empty and NULL strings to be the same */
 198     if (result->result_session_ticket_app_data != NULL)
 199         result_len = strlen(result->result_session_ticket_app_data);
 200     if (test_ctx->expected_session_ticket_app_data != NULL)
 201         expected_len = strlen(test_ctx->expected_session_ticket_app_data);
 202     if (result_len == 0 && expected_len == 0)
 203         return 1;
 204
 205     if (!TEST_str_eq(result->result_session_ticket_app_data,
 206                      test_ctx->expected_session_ticket_app_data))
 207         return 0;
 208
 209     return 1;
 210 }
 211
 212 static int check_resumption(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
 213 {
 214     if (!TEST_int_eq(result->client_resumed, result->server_resumed))
 215         return 0;
 216     if (!TEST_int_eq(result->client_resumed, test_ctx->resumption_expected))
 217         return 0;
 218     return 1;
 219 }
 220
 221 static int check_nid(const char *name, int expected_nid, int nid)
 222 {
 223     if (expected_nid == 0 || expected_nid == nid)
 224         return 1;
 225     TEST_error("%s type mismatch, %s vs %s\n",
 226                name, OBJ_nid2ln(expected_nid),
 227                nid == NID_undef ? "absent" : OBJ_nid2ln(nid));
 228     return 0;
 229 }
 230
 231 static void print_ca_names(STACK_OF(X509_NAME) *names)
 232 {
 233     int i;
 234
 235     if (names == NULL || sk_X509_NAME_num(names) == 0) {
 236         TEST_note("    <empty>");
 237         return;
 238     }
 239     for (i = 0; i < sk_X509_NAME_num(names); i++) {
 240         X509_NAME_print_ex(bio_err, sk_X509_NAME_value(names, i), 4,
 241                            XN_FLAG_ONELINE);
 242         BIO_puts(bio_err, "\n");
 243     }
 244 }
 245
 246 static int check_ca_names(const char *name,
 247                           STACK_OF(X509_NAME) *expected_names,
 248                           STACK_OF(X509_NAME) *names)
 249 {
 250     int i;
 251
 252     if (expected_names == NULL)
 253         return 1;
 254     if (names == NULL || sk_X509_NAME_num(names) == 0) {
 255         if (TEST_int_eq(sk_X509_NAME_num(expected_names), 0))
 256             return 1;
 257         goto err;
 258     }
 259     if (sk_X509_NAME_num(names) != sk_X509_NAME_num(expected_names))
 260         goto err;
 261     for (i = 0; i < sk_X509_NAME_num(names); i++) {
 262         if (!TEST_int_eq(X509_NAME_cmp(sk_X509_NAME_value(names, i),
 263                                        sk_X509_NAME_value(expected_names, i)),
 264                          0)) {
 265             goto err;
 266         }
 267     }
 268     return 1;
 269 err:
 270     TEST_info("%s: list mismatch", name);
 271     TEST_note("Expected Names:");
 272     print_ca_names(expected_names);
 273     TEST_note("Received Names:");
 274     print_ca_names(names);
 275     return 0;
 276 }
 277
 278 static int check_tmp_key(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
 279 {
 280     return check_nid("Tmp key", test_ctx->expected_tmp_key_type,
 281                      result->tmp_key_type);
 282 }
 283
 284 static int check_server_cert_type(HANDSHAKE_RESULT *result,
 285                                   SSL_TEST_CTX *test_ctx)
 286 {
 287     return check_nid("Server certificate", test_ctx->expected_server_cert_type,
 288                      result->server_cert_type);
 289 }
 290
 291 static int check_server_sign_hash(HANDSHAKE_RESULT *result,
 292                                   SSL_TEST_CTX *test_ctx)
 293 {
 294     return check_nid("Server signing hash", test_ctx->expected_server_sign_hash,
 295                      result->server_sign_hash);
 296 }
 297
 298 static int check_server_sign_type(HANDSHAKE_RESULT *result,
 299                                   SSL_TEST_CTX *test_ctx)
 300 {
 301     return check_nid("Server signing", test_ctx->expected_server_sign_type,
 302                      result->server_sign_type);
 303 }
 304
 305 static int check_server_ca_names(HANDSHAKE_RESULT *result,
 306                                  SSL_TEST_CTX *test_ctx)
 307 {
 308     return check_ca_names("Server CA names",
 309                           test_ctx->expected_server_ca_names,
 310                           result->server_ca_names);
 311 }
 312
 313 static int check_client_cert_type(HANDSHAKE_RESULT *result,
 314                                   SSL_TEST_CTX *test_ctx)
 315 {
 316     return check_nid("Client certificate", test_ctx->expected_client_cert_type,
 317                      result->client_cert_type);
 318 }
 319
 320 static int check_client_sign_hash(HANDSHAKE_RESULT *result,
 321                                   SSL_TEST_CTX *test_ctx)
 322 {
 323     return check_nid("Client signing hash", test_ctx->expected_client_sign_hash,
 324                      result->client_sign_hash);
 325 }
 326
 327 static int check_client_sign_type(HANDSHAKE_RESULT *result,
 328                                   SSL_TEST_CTX *test_ctx)
 329 {
 330     return check_nid("Client signing", test_ctx->expected_client_sign_type,
 331                      result->client_sign_type);
 332 }
 333
 334 static int check_client_ca_names(HANDSHAKE_RESULT *result,
 335                                  SSL_TEST_CTX *test_ctx)
 336 {
 337     return check_ca_names("Client CA names",
 338                           test_ctx->expected_client_ca_names,
 339                           result->client_ca_names);
 340 }
 341
 342 static int check_cipher(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
 343 {
 344     if (test_ctx->expected_cipher == NULL)
 345         return 1;
 346     if (!TEST_ptr(result->cipher))
 347         return 0;
 348     if (!TEST_str_eq(test_ctx->expected_cipher,
 349                      result->cipher))
 350         return 0;
 351     return 1;
 352 }
 353
 354 /*
 355  * This could be further simplified by constructing an expected
 356  * HANDSHAKE_RESULT, and implementing comparison methods for
 357  * its fields.
 358  */
 359 static int check_test(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
 360 {
 361     int ret = 1;
 362     ret &= check_result(result, test_ctx);
 363     ret &= check_alerts(result, test_ctx);
 364     if (result->result == SSL_TEST_SUCCESS) {
 365         ret &= check_protocol(result, test_ctx);
 366         ret &= check_servername(result, test_ctx);
 367         ret &= check_session_ticket(result, test_ctx);
 368         ret &= check_compression(result, test_ctx);
 369         ret &= check_session_id(result, test_ctx);
 370         ret &= (result->session_ticket_do_not_call == 0);
 371 #ifndef OPENSSL_NO_NEXTPROTONEG
 372         ret &= check_npn(result, test_ctx);
 373 #endif
 374         ret &= check_cipher(result, test_ctx);
 375         ret &= check_alpn(result, test_ctx);
 376         ret &= check_session_ticket_app_data(result, test_ctx);
 377         ret &= check_resumption(result, test_ctx);
 378         ret &= check_tmp_key(result, test_ctx);
 379         ret &= check_server_cert_type(result, test_ctx);
 380         ret &= check_server_sign_hash(result, test_ctx);
 381         ret &= check_server_sign_type(result, test_ctx);
 382         ret &= check_server_ca_names(result, test_ctx);
 383         ret &= check_client_cert_type(result, test_ctx);
 384         ret &= check_client_sign_hash(result, test_ctx);
 385         ret &= check_client_sign_type(result, test_ctx);
 386         ret &= check_client_ca_names(result, test_ctx);
 387     }
 388     return ret;
 389 }
 390
 391 static int test_handshake(int idx)
 392 {
 393     int ret = 0;
 394     SSL_CTX *server_ctx = NULL, *server2_ctx = NULL, *client_ctx = NULL,
 395         *resume_server_ctx = NULL, *resume_client_ctx = NULL;
 396     SSL_TEST_CTX *test_ctx = NULL;
 397     HANDSHAKE_RESULT *result = NULL;
 398     char test_app[MAX_TESTCASE_NAME_LENGTH];
 399
 400     BIO_snprintf(test_app, sizeof(test_app), "test-%d", idx);
 401
 402     test_ctx = SSL_TEST_CTX_create(conf, test_app);
 403     if (!TEST_ptr(test_ctx))
 404         goto err;
 405
 406 #ifndef OPENSSL_NO_DTLS
 407     if (test_ctx->method == SSL_TEST_METHOD_DTLS) {
 408         server_ctx = SSL_CTX_new(DTLS_server_method());
 409         if (!TEST_true(SSL_CTX_set_max_proto_version(server_ctx, 0)))
 410             goto err;
 411         if (test_ctx->extra.server.servername_callback !=
 412             SSL_TEST_SERVERNAME_CB_NONE) {
 413             if (!TEST_ptr(server2_ctx = SSL_CTX_new(DTLS_server_method())))
 414                 goto err;
 415         }
 416         client_ctx = SSL_CTX_new(DTLS_client_method());
 417         if (!TEST_true(SSL_CTX_set_max_proto_version(client_ctx, 0)))
 418             goto err;
 419         if (test_ctx->handshake_mode == SSL_TEST_HANDSHAKE_RESUME) {
 420             resume_server_ctx = SSL_CTX_new(DTLS_server_method());
 421             if (!TEST_true(SSL_CTX_set_max_proto_version(resume_server_ctx, 0)))
 422                 goto err;
 423             resume_client_ctx = SSL_CTX_new(DTLS_client_method());
 424             if (!TEST_true(SSL_CTX_set_max_proto_version(resume_client_ctx, 0)))
 425                 goto err;
 426             if (!TEST_ptr(resume_server_ctx)
 427                     || !TEST_ptr(resume_client_ctx))
 428                 goto err;
 429         }
 430     }
 431 #endif
 432     if (test_ctx->method == SSL_TEST_METHOD_TLS) {
 433         server_ctx = SSL_CTX_new(TLS_server_method());
 434         if (!TEST_true(SSL_CTX_set_max_proto_version(server_ctx, 0)))
 435             goto err;
 436         /* SNI on resumption isn't supported/tested yet. */
 437         if (test_ctx->extra.server.servername_callback !=
 438             SSL_TEST_SERVERNAME_CB_NONE) {
 439             if (!TEST_ptr(server2_ctx = SSL_CTX_new(TLS_server_method())))
 440                 goto err;
 441             if (!TEST_true(SSL_CTX_set_max_proto_version(server2_ctx, 0)))
 442                 goto err;
 443         }
 444         client_ctx = SSL_CTX_new(TLS_client_method());
 445         if (!TEST_true(SSL_CTX_set_max_proto_version(client_ctx, 0)))
 446             goto err;
 447
 448         if (test_ctx->handshake_mode == SSL_TEST_HANDSHAKE_RESUME) {
 449             resume_server_ctx = SSL_CTX_new(TLS_server_method());
 450             if (!TEST_true(SSL_CTX_set_max_proto_version(resume_server_ctx, 0)))
 451                 goto err;
 452             resume_client_ctx = SSL_CTX_new(TLS_client_method());
 453             if (!TEST_true(SSL_CTX_set_max_proto_version(resume_client_ctx, 0)))
 454                 goto err;
 455             if (!TEST_ptr(resume_server_ctx)
 456                     || !TEST_ptr(resume_client_ctx))
 457                 goto err;
 458         }
 459     }
 460
 461 #ifdef OPENSSL_NO_AUTOLOAD_CONFIG
 462     if (!TEST_true(OPENSSL_init_ssl(OPENSSL_INIT_LOAD_CONFIG, NULL)))
 463         goto err;
 464 #endif
 465
 466     if (!TEST_ptr(server_ctx)
 467             || !TEST_ptr(client_ctx)
 468             || !TEST_int_gt(CONF_modules_load(conf, test_app, 0),  0))
 469         goto err;
 470
 471     if (!SSL_CTX_config(server_ctx, "server")
 472         || !SSL_CTX_config(client_ctx, "client")) {
 473         goto err;
 474     }
 475
 476     if (server2_ctx != NULL && !SSL_CTX_config(server2_ctx, "server2"))
 477         goto err;
 478     if (resume_server_ctx != NULL
 479         && !SSL_CTX_config(resume_server_ctx, "resume-server"))
 480         goto err;
 481     if (resume_client_ctx != NULL
 482         && !SSL_CTX_config(resume_client_ctx, "resume-client"))
 483         goto err;
 484
 485     result = do_handshake(server_ctx, server2_ctx, client_ctx,
 486                           resume_server_ctx, resume_client_ctx, test_ctx);
 487
 488     if (result != NULL)
 489         ret = check_test(result, test_ctx);
 490
 491 err:
 492     CONF_modules_unload(0);
 493     SSL_CTX_free(server_ctx);
 494     SSL_CTX_free(server2_ctx);
 495     SSL_CTX_free(client_ctx);
 496     SSL_CTX_free(resume_server_ctx);
 497     SSL_CTX_free(resume_client_ctx);
 498     SSL_TEST_CTX_free(test_ctx);
 499     HANDSHAKE_RESULT_free(result);
 500     return ret;
 501 }
 502
 503 OPT_TEST_DECLARE_USAGE("conf_file\n")
 504
 505 int setup_tests(void)
 506 {
 507     long num_tests;
 508
 509     if (!TEST_ptr(conf = NCONF_new(NULL))
 510             /* argv[1] should point to the test conf file */
 511             || !TEST_int_gt(NCONF_load(conf, test_get_argument(0), NULL), 0)
 512             || !TEST_int_ne(NCONF_get_number_e(conf, NULL, "num_tests",
 513                                                &num_tests), 0))
 514         return 0;
 515
 516     ADD_ALL_TESTS(test_handshake, (int)num_tests);
 517     return 1;
 518 }
 519
 520 void cleanup_tests(void)
 521 {
 522     NCONF_free(conf);
 523 }