test/ssl_test.c

   1 /*
   2  * Copyright 2016-2017 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
  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_compression(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
 147 {
 148     if (!TEST_int_eq(result->compression, test_ctx->compression_expected))
 149         return 0;
 150     return 1;
 151 }
 152 #ifndef OPENSSL_NO_NEXTPROTONEG
 153 static int check_npn(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
 154 {
 155     int ret = 1;
 156     if (!TEST_str_eq(result->client_npn_negotiated,
 157                      result->server_npn_negotiated))
 158         ret = 0;
 159     if (!TEST_str_eq(test_ctx->expected_npn_protocol,
 160                      result->client_npn_negotiated))
 161         ret = 0;
 162     return ret;
 163 }
 164 #endif
 165
 166 static int check_alpn(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
 167 {
 168     int ret = 1;
 169     if (!TEST_str_eq(result->client_alpn_negotiated,
 170                      result->server_alpn_negotiated))
 171         ret = 0;
 172     if (!TEST_str_eq(test_ctx->expected_alpn_protocol,
 173                      result->client_alpn_negotiated))
 174         ret = 0;
 175     return ret;
 176 }
 177
 178 static int check_resumption(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
 179 {
 180     if (!TEST_int_eq(result->client_resumed, result->server_resumed))
 181         return 0;
 182     if (!TEST_int_eq(result->client_resumed, test_ctx->resumption_expected))
 183         return 0;
 184     return 1;
 185 }
 186
 187 static int check_nid(const char *name, int expected_nid, int nid)
 188 {
 189     if (expected_nid == 0 || expected_nid == nid)
 190         return 1;
 191     TEST_error("%s type mismatch, %s vs %s\n",
 192                name, OBJ_nid2ln(expected_nid),
 193                nid == NID_undef ? "absent" : OBJ_nid2ln(nid));
 194     return 0;
 195 }
 196
 197 static void print_ca_names(STACK_OF(X509_NAME) *names)
 198 {
 199     int i;
 200
 201     if (names == NULL || sk_X509_NAME_num(names) == 0) {
 202         TEST_note("    <empty>");
 203         return;
 204     }
 205     for (i = 0; i < sk_X509_NAME_num(names); i++) {
 206         X509_NAME_print_ex(bio_err, sk_X509_NAME_value(names, i), 4,
 207                            XN_FLAG_ONELINE);
 208         BIO_puts(bio_err, "\n");
 209     }
 210 }
 211
 212 static int check_ca_names(const char *name,
 213                           STACK_OF(X509_NAME) *expected_names,
 214                           STACK_OF(X509_NAME) *names)
 215 {
 216     int i;
 217
 218     if (expected_names == NULL)
 219         return 1;
 220     if (names == NULL || sk_X509_NAME_num(names) == 0) {
 221         if (TEST_int_eq(sk_X509_NAME_num(expected_names), 0))
 222             return 1;
 223         goto err;
 224     }
 225     if (sk_X509_NAME_num(names) != sk_X509_NAME_num(expected_names))
 226         goto err;
 227     for (i = 0; i < sk_X509_NAME_num(names); i++) {
 228         if (!TEST_int_eq(X509_NAME_cmp(sk_X509_NAME_value(names, i),
 229                                        sk_X509_NAME_value(expected_names, i)),
 230                          0)) {
 231             goto err;
 232         }
 233     }
 234     return 1;
 235 err:
 236     TEST_info("%s: list mismatch", name);
 237     TEST_note("Expected Names:");
 238     print_ca_names(expected_names);
 239     TEST_note("Received Names:");
 240     print_ca_names(names);
 241     return 0;
 242 }
 243
 244 static int check_tmp_key(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
 245 {
 246     return check_nid("Tmp key", test_ctx->expected_tmp_key_type,
 247                      result->tmp_key_type);
 248 }
 249
 250 static int check_server_cert_type(HANDSHAKE_RESULT *result,
 251                                   SSL_TEST_CTX *test_ctx)
 252 {
 253     return check_nid("Server certificate", test_ctx->expected_server_cert_type,
 254                      result->server_cert_type);
 255 }
 256
 257 static int check_server_sign_hash(HANDSHAKE_RESULT *result,
 258                                   SSL_TEST_CTX *test_ctx)
 259 {
 260     return check_nid("Server signing hash", test_ctx->expected_server_sign_hash,
 261                      result->server_sign_hash);
 262 }
 263
 264 static int check_server_sign_type(HANDSHAKE_RESULT *result,
 265                                   SSL_TEST_CTX *test_ctx)
 266 {
 267     return check_nid("Server signing", test_ctx->expected_server_sign_type,
 268                      result->server_sign_type);
 269 }
 270
 271 static int check_server_ca_names(HANDSHAKE_RESULT *result,
 272                                  SSL_TEST_CTX *test_ctx)
 273 {
 274     return check_ca_names("Server CA names",
 275                           test_ctx->expected_server_ca_names,
 276                           result->server_ca_names);
 277 }
 278
 279 static int check_client_cert_type(HANDSHAKE_RESULT *result,
 280                                   SSL_TEST_CTX *test_ctx)
 281 {
 282     return check_nid("Client certificate", test_ctx->expected_client_cert_type,
 283                      result->client_cert_type);
 284 }
 285
 286 static int check_client_sign_hash(HANDSHAKE_RESULT *result,
 287                                   SSL_TEST_CTX *test_ctx)
 288 {
 289     return check_nid("Client signing hash", test_ctx->expected_client_sign_hash,
 290                      result->client_sign_hash);
 291 }
 292
 293 static int check_client_sign_type(HANDSHAKE_RESULT *result,
 294                                   SSL_TEST_CTX *test_ctx)
 295 {
 296     return check_nid("Client signing", test_ctx->expected_client_sign_type,
 297                      result->client_sign_type);
 298 }
 299
 300 static int check_client_ca_names(HANDSHAKE_RESULT *result,
 301                                  SSL_TEST_CTX *test_ctx)
 302 {
 303     return check_ca_names("Client CA names",
 304                           test_ctx->expected_client_ca_names,
 305                           result->client_ca_names);
 306 }
 307
 308 /*
 309  * This could be further simplified by constructing an expected
 310  * HANDSHAKE_RESULT, and implementing comparison methods for
 311  * its fields.
 312  */
 313 static int check_test(HANDSHAKE_RESULT *result, SSL_TEST_CTX *test_ctx)
 314 {
 315     int ret = 1;
 316     ret &= check_result(result, test_ctx);
 317     ret &= check_alerts(result, test_ctx);
 318     if (result->result == SSL_TEST_SUCCESS) {
 319         ret &= check_protocol(result, test_ctx);
 320         ret &= check_servername(result, test_ctx);
 321         ret &= check_session_ticket(result, test_ctx);
 322         ret &= check_compression(result, test_ctx);
 323         ret &= (result->session_ticket_do_not_call == 0);
 324 #ifndef OPENSSL_NO_NEXTPROTONEG
 325         ret &= check_npn(result, test_ctx);
 326 #endif
 327         ret &= check_alpn(result, test_ctx);
 328         ret &= check_resumption(result, test_ctx);
 329         ret &= check_tmp_key(result, test_ctx);
 330         ret &= check_server_cert_type(result, test_ctx);
 331         ret &= check_server_sign_hash(result, test_ctx);
 332         ret &= check_server_sign_type(result, test_ctx);
 333         ret &= check_server_ca_names(result, test_ctx);
 334         ret &= check_client_cert_type(result, test_ctx);
 335         ret &= check_client_sign_hash(result, test_ctx);
 336         ret &= check_client_sign_type(result, test_ctx);
 337         ret &= check_client_ca_names(result, test_ctx);
 338     }
 339     return ret;
 340 }
 341
 342 static int test_handshake(int idx)
 343 {
 344     int ret = 0;
 345     SSL_CTX *server_ctx = NULL, *server2_ctx = NULL, *client_ctx = NULL,
 346         *resume_server_ctx = NULL, *resume_client_ctx = NULL;
 347     SSL_TEST_CTX *test_ctx = NULL;
 348     HANDSHAKE_RESULT *result = NULL;
 349     char test_app[MAX_TESTCASE_NAME_LENGTH];
 350
 351     BIO_snprintf(test_app, sizeof(test_app), "test-%d", idx);
 352
 353     test_ctx = SSL_TEST_CTX_create(conf, test_app);
 354     if (!TEST_ptr(test_ctx))
 355         goto err;
 356
 357 #ifndef OPENSSL_NO_DTLS
 358     if (test_ctx->method == SSL_TEST_METHOD_DTLS) {
 359         server_ctx = SSL_CTX_new(DTLS_server_method());
 360         if (test_ctx->extra.server.servername_callback !=
 361             SSL_TEST_SERVERNAME_CB_NONE) {
 362             if (!TEST_ptr(server2_ctx = SSL_CTX_new(DTLS_server_method())))
 363                 goto err;
 364         }
 365         client_ctx = SSL_CTX_new(DTLS_client_method());
 366         if (test_ctx->handshake_mode == SSL_TEST_HANDSHAKE_RESUME) {
 367             resume_server_ctx = SSL_CTX_new(DTLS_server_method());
 368             resume_client_ctx = SSL_CTX_new(DTLS_client_method());
 369             if (!TEST_ptr(resume_server_ctx)
 370                     || !TEST_ptr(resume_client_ctx))
 371                 goto err;
 372         }
 373     }
 374 #endif
 375     if (test_ctx->method == SSL_TEST_METHOD_TLS) {
 376         server_ctx = SSL_CTX_new(TLS_server_method());
 377         /* SNI on resumption isn't supported/tested yet. */
 378         if (test_ctx->extra.server.servername_callback !=
 379             SSL_TEST_SERVERNAME_CB_NONE) {
 380             if (!TEST_ptr(server2_ctx = SSL_CTX_new(TLS_server_method())))
 381                 goto err;
 382         }
 383         client_ctx = SSL_CTX_new(TLS_client_method());
 384
 385         if (test_ctx->handshake_mode == SSL_TEST_HANDSHAKE_RESUME) {
 386             resume_server_ctx = SSL_CTX_new(TLS_server_method());
 387             resume_client_ctx = SSL_CTX_new(TLS_client_method());
 388             if (!TEST_ptr(resume_server_ctx)
 389                     || !TEST_ptr(resume_client_ctx))
 390                 goto err;
 391         }
 392     }
 393
 394     if (!TEST_ptr(server_ctx)
 395             || !TEST_ptr(client_ctx)
 396             || !TEST_int_gt(CONF_modules_load(conf, test_app, 0),  0))
 397         goto err;
 398
 399     if (!SSL_CTX_config(server_ctx, "server")
 400         || !SSL_CTX_config(client_ctx, "client")) {
 401         goto err;
 402     }
 403
 404     if (server2_ctx != NULL && !SSL_CTX_config(server2_ctx, "server2"))
 405         goto err;
 406     if (resume_server_ctx != NULL
 407         && !SSL_CTX_config(resume_server_ctx, "resume-server"))
 408         goto err;
 409     if (resume_client_ctx != NULL
 410         && !SSL_CTX_config(resume_client_ctx, "resume-client"))
 411         goto err;
 412
 413     result = do_handshake(server_ctx, server2_ctx, client_ctx,
 414                           resume_server_ctx, resume_client_ctx, test_ctx);
 415
 416     if (result != NULL)
 417         ret = check_test(result, test_ctx);
 418
 419 err:
 420     CONF_modules_unload(0);
 421     SSL_CTX_free(server_ctx);
 422     SSL_CTX_free(server2_ctx);
 423     SSL_CTX_free(client_ctx);
 424     SSL_CTX_free(resume_server_ctx);
 425     SSL_CTX_free(resume_client_ctx);
 426     SSL_TEST_CTX_free(test_ctx);
 427     HANDSHAKE_RESULT_free(result);
 428     return ret;
 429 }
 430
 431 int test_main(int argc, char **argv)
 432 {
 433     int result = EXIT_FAILURE;
 434     long num_tests;
 435
 436     if (!TEST_int_eq(argc, 2)
 437             || !TEST_ptr(conf = NCONF_new(NULL))
 438             /* argv[1] should point to the test conf file */
 439             || !TEST_int_gt(NCONF_load(conf, argv[1], NULL), 0)
 440             || !TEST_int_ne(NCONF_get_number_e(conf, NULL, "num_tests",
 441                                                &num_tests), 0))
 442         goto err;
 443
 444     ADD_ALL_TESTS(test_handshake, (int)(num_tests));
 445     result = run_tests(argv[0]);
 446
 447 err:
 448     NCONF_free(conf);
 449     return result;
 450 }