test/ssl_test.c

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