test/sslapitest.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 <string.h>
  11
  12 #include <openssl/opensslconf.h>
  13 #include <openssl/bio.h>
  14 #include <openssl/crypto.h>
  15 #include <openssl/ssl.h>
  16 #include <openssl/ocsp.h>
  17
  18 #include "ssltestlib.h"
  19 #include "testutil.h"
  20
  21 static char *cert = NULL;
  22 static char *privkey = NULL;
  23
  24 static const unsigned char orespder[] = "Dummy OCSP Response";
  25 static int ocsp_server_called = 0;
  26 static int ocsp_client_called = 0;
  27
  28 static int cdummyarg = 1;
  29 static X509 *ocspcert = NULL;
  30
  31 #define NUM_EXTRA_CERTS 40
  32
  33 static int execute_test_large_message(const SSL_METHOD *smeth,
  34                                       const SSL_METHOD *cmeth, int read_ahead)
  35 {
  36     SSL_CTX *cctx = NULL, *sctx = NULL;
  37     SSL *clientssl = NULL, *serverssl = NULL;
  38     int testresult = 0;
  39     int i;
  40     BIO *certbio = BIO_new_file(cert, "r");
  41     X509 *chaincert = NULL;
  42     int certlen;
  43
  44     if (certbio == NULL) {
  45         printf("Can't load the certficate file\n");
  46         goto end;
  47     }
  48     chaincert = PEM_read_bio_X509(certbio, NULL, NULL, NULL);
  49     BIO_free(certbio);
  50     certbio = NULL;
  51     if (chaincert == NULL) {
  52         printf("Unable to load certificate for chain\n");
  53         goto end;
  54     }
  55
  56     if (!create_ssl_ctx_pair(smeth, cmeth, &sctx,
  57                              &cctx, cert, privkey)) {
  58         printf("Unable to create SSL_CTX pair\n");
  59         goto end;
  60     }
  61
  62     if(read_ahead) {
  63         /*
  64          * Test that read_ahead works correctly when dealing with large
  65          * records
  66          */
  67         SSL_CTX_set_read_ahead(cctx, 1);
  68     }
  69
  70     /*
  71      * We assume the supplied certificate is big enough so that if we add
  72      * NUM_EXTRA_CERTS it will make the overall message large enough. The
  73      * default buffer size is requested to be 16k, but due to the way BUF_MEM
  74      * works, it ends up allocing a little over 21k (16 * 4/3). So, in this test
  75      * we need to have a message larger than that.
  76      */
  77     certlen = i2d_X509(chaincert, NULL);
  78     OPENSSL_assert((certlen * NUM_EXTRA_CERTS)
  79                    > ((SSL3_RT_MAX_PLAIN_LENGTH * 4) / 3));
  80     for (i = 0; i < NUM_EXTRA_CERTS; i++) {
  81         if (!X509_up_ref(chaincert)) {
  82             printf("Unable to up ref cert\n");
  83             goto end;
  84         }
  85         if (!SSL_CTX_add_extra_chain_cert(sctx, chaincert)) {
  86             printf("Unable to add extra chain cert %d\n", i);
  87             X509_free(chaincert);
  88             goto end;
  89         }
  90     }
  91
  92     if (!create_ssl_objects(sctx, cctx, &serverssl, &clientssl, NULL, NULL)) {
  93         printf("Unable to create SSL objects\n");
  94         goto end;
  95     }
  96
  97     if (!create_ssl_connection(serverssl, clientssl)) {
  98         printf("Unable to create SSL connection\n");
  99         goto end;
 100     }
 101
 102     testresult = 1;
 103
 104  end:
 105     X509_free(chaincert);
 106     SSL_free(serverssl);
 107     SSL_free(clientssl);
 108     SSL_CTX_free(sctx);
 109     SSL_CTX_free(cctx);
 110
 111     return testresult;
 112 }
 113
 114 static int test_large_message_tls(void)
 115 {
 116     return execute_test_large_message(TLS_server_method(), TLS_client_method(),
 117                                       0);
 118 }
 119
 120 static int test_large_message_tls_read_ahead(void)
 121 {
 122     return execute_test_large_message(TLS_server_method(), TLS_client_method(),
 123                                       1);
 124 }
 125
 126 #ifndef OPENSSL_NO_DTLS
 127 static int test_large_message_dtls(void)
 128 {
 129     /*
 130      * read_ahead is not relevant to DTLS because DTLS always acts as if
 131      * read_ahead is set.
 132      */
 133     return execute_test_large_message(DTLS_server_method(),
 134                                       DTLS_client_method(), 0);
 135 }
 136 #endif
 137
 138 static int ocsp_server_cb(SSL *s, void *arg)
 139 {
 140     int *argi = (int *)arg;
 141     unsigned char *orespdercopy = NULL;
 142     STACK_OF(OCSP_RESPID) *ids = NULL;
 143     OCSP_RESPID *id = NULL;
 144
 145     if (*argi == 2) {
 146         /* In this test we are expecting exactly 1 OCSP_RESPID */
 147         SSL_get_tlsext_status_ids(s, &ids);
 148         if (ids == NULL || sk_OCSP_RESPID_num(ids) != 1)
 149             return SSL_TLSEXT_ERR_ALERT_FATAL;
 150
 151         id = sk_OCSP_RESPID_value(ids, 0);
 152         if (id == NULL || !OCSP_RESPID_match(id, ocspcert))
 153             return SSL_TLSEXT_ERR_ALERT_FATAL;
 154     } else if (*argi != 1) {
 155         return SSL_TLSEXT_ERR_ALERT_FATAL;
 156     }
 157
 158
 159     orespdercopy = OPENSSL_memdup(orespder, sizeof(orespder));
 160     if (orespdercopy == NULL)
 161         return SSL_TLSEXT_ERR_ALERT_FATAL;
 162
 163     SSL_set_tlsext_status_ocsp_resp(s, orespdercopy, sizeof(orespder));
 164
 165     ocsp_server_called = 1;
 166
 167     return SSL_TLSEXT_ERR_OK;
 168 }
 169
 170 static int ocsp_client_cb(SSL *s, void *arg)
 171 {
 172     int *argi = (int *)arg;
 173     const unsigned char *respderin;
 174     size_t len;
 175
 176     if (*argi != 1 && *argi != 2)
 177         return 0;
 178
 179     len = SSL_get_tlsext_status_ocsp_resp(s, &respderin);
 180
 181     if (memcmp(orespder, respderin, len) != 0)
 182         return 0;
 183
 184     ocsp_client_called = 1;
 185
 186     return 1;
 187 }
 188
 189 static int test_tlsext_status_type(void)
 190 {
 191     SSL_CTX *cctx = NULL, *sctx = NULL;
 192     SSL *clientssl = NULL, *serverssl = NULL;
 193     int testresult = 0;
 194     STACK_OF(OCSP_RESPID) *ids = NULL;
 195     OCSP_RESPID *id = NULL;
 196     BIO *certbio = NULL;
 197
 198     if (!create_ssl_ctx_pair(TLS_server_method(), TLS_client_method(), &sctx,
 199                              &cctx, cert, privkey)) {
 200         printf("Unable to create SSL_CTX pair\n");
 201         return 0;
 202     }
 203
 204     if (SSL_CTX_get_tlsext_status_type(cctx) != -1) {
 205         printf("Unexpected initial value for "
 206                "SSL_CTX_get_tlsext_status_type()\n");
 207         goto end;
 208     }
 209
 210     /* First just do various checks getting and setting tlsext_status_type */
 211
 212     clientssl = SSL_new(cctx);
 213     if (SSL_get_tlsext_status_type(clientssl) != -1) {
 214         printf("Unexpected initial value for SSL_get_tlsext_status_type()\n");
 215         goto end;
 216     }
 217
 218     if (!SSL_set_tlsext_status_type(clientssl, TLSEXT_STATUSTYPE_ocsp)) {
 219         printf("Unexpected fail for SSL_set_tlsext_status_type()\n");
 220         goto end;
 221     }
 222
 223     if (SSL_get_tlsext_status_type(clientssl) != TLSEXT_STATUSTYPE_ocsp) {
 224         printf("Unexpected result for SSL_get_tlsext_status_type()\n");
 225         goto end;
 226     }
 227
 228     SSL_free(clientssl);
 229     clientssl = NULL;
 230
 231     if (!SSL_CTX_set_tlsext_status_type(cctx, TLSEXT_STATUSTYPE_ocsp)) {
 232         printf("Unexpected fail for SSL_CTX_set_tlsext_status_type()\n");
 233         goto end;
 234     }
 235
 236     if (SSL_CTX_get_tlsext_status_type(cctx) != TLSEXT_STATUSTYPE_ocsp) {
 237         printf("Unexpected result for SSL_CTX_get_tlsext_status_type()\n");
 238         goto end;
 239     }
 240
 241     clientssl = SSL_new(cctx);
 242
 243     if (SSL_get_tlsext_status_type(clientssl) != TLSEXT_STATUSTYPE_ocsp) {
 244         printf("Unexpected result for SSL_get_tlsext_status_type() (test 2)\n");
 245         goto end;
 246     }
 247
 248     SSL_free(clientssl);
 249     clientssl = NULL;
 250
 251     /*
 252      * Now actually do a handshake and check OCSP information is exchanged and
 253      * the callbacks get called
 254      */
 255
 256     SSL_CTX_set_tlsext_status_cb(cctx, ocsp_client_cb);
 257     SSL_CTX_set_tlsext_status_arg(cctx, &cdummyarg);
 258     SSL_CTX_set_tlsext_status_cb(sctx, ocsp_server_cb);
 259     SSL_CTX_set_tlsext_status_arg(sctx, &cdummyarg);
 260
 261     if (!create_ssl_objects(sctx, cctx, &serverssl, &clientssl, NULL, NULL)) {
 262         printf("Unable to create SSL objects\n");
 263         goto end;
 264     }
 265
 266     if (!create_ssl_connection(serverssl, clientssl)) {
 267         printf("Unable to create SSL connection\n");
 268         goto end;
 269     }
 270
 271     if (!ocsp_client_called || !ocsp_server_called) {
 272         printf("OCSP callbacks not called\n");
 273         goto end;
 274     }
 275
 276     SSL_free(serverssl);
 277     SSL_free(clientssl);
 278     serverssl = NULL;
 279     clientssl = NULL;
 280
 281     /* Try again but this time force the server side callback to fail */
 282     ocsp_client_called = 0;
 283     ocsp_server_called = 0;
 284     cdummyarg = 0;
 285
 286     if (!create_ssl_objects(sctx, cctx, &serverssl, &clientssl, NULL, NULL)) {
 287         printf("Unable to create SSL objects\n");
 288         goto end;
 289     }
 290
 291     /* This should fail because the callback will fail */
 292     if (create_ssl_connection(serverssl, clientssl)) {
 293         printf("Unexpected success creating the connection\n");
 294         goto end;
 295     }
 296
 297     if (ocsp_client_called || ocsp_server_called) {
 298         printf("OCSP callbacks successfully called unexpectedly\n");
 299         goto end;
 300     }
 301
 302     SSL_free(serverssl);
 303     SSL_free(clientssl);
 304     serverssl = NULL;
 305     clientssl = NULL;
 306
 307     /*
 308      * This time we'll get the client to send an OCSP_RESPID that it will
 309      * accept.
 310      */
 311     ocsp_client_called = 0;
 312     ocsp_server_called = 0;
 313     cdummyarg = 2;
 314
 315     if (!create_ssl_objects(sctx, cctx, &serverssl, &clientssl, NULL, NULL)) {
 316         printf("Unable to create SSL objects\n");
 317         goto end;
 318     }
 319
 320     /*
 321      * We'll just use any old cert for this test - it doesn't have to be an OCSP
 322      * specifc one. We'll use the server cert.
 323      */
 324     certbio = BIO_new_file(cert, "r");
 325     if (certbio == NULL) {
 326         printf("Can't load the certficate file\n");
 327         goto end;
 328     }
 329     id = OCSP_RESPID_new();
 330     ids = sk_OCSP_RESPID_new_null();
 331     ocspcert = PEM_read_bio_X509(certbio, NULL, NULL, NULL);
 332     if (id == NULL || ids == NULL || ocspcert == NULL
 333             || !OCSP_RESPID_set_by_key(id, ocspcert)
 334             || !sk_OCSP_RESPID_push(ids, id)) {
 335         printf("Unable to set OCSP_RESPIDs\n");
 336         goto end;
 337     }
 338     id = NULL;
 339     SSL_set_tlsext_status_ids(clientssl, ids);
 340     /* Control has been transferred */
 341     ids = NULL;
 342
 343     BIO_free(certbio);
 344     certbio = NULL;
 345
 346     if (!create_ssl_connection(serverssl, clientssl)) {
 347         printf("Unable to create SSL connection\n");
 348         goto end;
 349     }
 350
 351     if (!ocsp_client_called || !ocsp_server_called) {
 352         printf("OCSP callbacks not called\n");
 353         goto end;
 354     }
 355
 356     testresult = 1;
 357
 358  end:
 359     SSL_free(serverssl);
 360     SSL_free(clientssl);
 361     SSL_CTX_free(sctx);
 362     SSL_CTX_free(cctx);
 363     sk_OCSP_RESPID_pop_free(ids, OCSP_RESPID_free);
 364     OCSP_RESPID_free(id);
 365     BIO_free(certbio);
 366     X509_free(ocspcert);
 367     ocspcert = NULL;
 368
 369     return testresult;
 370 }
 371
 372 typedef struct ssl_session_test_fixture {
 373     const char *test_case_name;
 374     int use_ext_cache;
 375     int use_int_cache;
 376 } SSL_SESSION_TEST_FIXTURE;
 377
 378 static int new_called = 0, remove_called = 0;
 379
 380 static SSL_SESSION_TEST_FIXTURE
 381 ssl_session_set_up(const char *const test_case_name)
 382 {
 383     SSL_SESSION_TEST_FIXTURE fixture;
 384
 385     fixture.test_case_name = test_case_name;
 386     fixture.use_ext_cache = 1;
 387     fixture.use_int_cache = 1;
 388
 389     new_called = remove_called = 0;
 390
 391     return fixture;
 392 }
 393
 394 static void ssl_session_tear_down(SSL_SESSION_TEST_FIXTURE fixture)
 395 {
 396 }
 397
 398 static int new_session_cb(SSL *ssl, SSL_SESSION *sess)
 399 {
 400     new_called++;
 401
 402     return 1;
 403 }
 404
 405 static void remove_session_cb(SSL_CTX *ctx, SSL_SESSION *sess)
 406 {
 407     remove_called++;
 408 }
 409
 410 static int execute_test_session(SSL_SESSION_TEST_FIXTURE fix)
 411 {
 412     SSL_CTX *sctx = NULL, *cctx = NULL;
 413     SSL *serverssl1 = NULL, *clientssl1 = NULL;
 414     SSL *serverssl2 = NULL, *clientssl2 = NULL;
 415 #ifndef OPENSSL_NO_TLS1_1
 416     SSL *serverssl3 = NULL, *clientssl3 = NULL;
 417 #endif
 418     SSL_SESSION *sess1 = NULL, *sess2 = NULL;
 419     int testresult = 0;
 420
 421     if (!create_ssl_ctx_pair(TLS_server_method(), TLS_client_method(), &sctx,
 422                              &cctx, cert, privkey)) {
 423         printf("Unable to create SSL_CTX pair\n");
 424         return 0;
 425     }
 426
 427 #ifndef OPENSSL_NO_TLS1_2
 428     /* Only allow TLS1.2 so we can force a connection failure later */
 429     SSL_CTX_set_min_proto_version(cctx, TLS1_2_VERSION);
 430 #endif
 431
 432     /* Set up session cache */
 433     if (fix.use_ext_cache) {
 434         SSL_CTX_sess_set_new_cb(cctx, new_session_cb);
 435         SSL_CTX_sess_set_remove_cb(cctx, remove_session_cb);
 436     }
 437     if (fix.use_int_cache) {
 438         /* Also covers instance where both are set */
 439         SSL_CTX_set_session_cache_mode(cctx, SSL_SESS_CACHE_CLIENT);
 440     } else {
 441         SSL_CTX_set_session_cache_mode(cctx,
 442                                        SSL_SESS_CACHE_CLIENT
 443                                        | SSL_SESS_CACHE_NO_INTERNAL_STORE);
 444     }
 445
 446     if (!create_ssl_objects(sctx, cctx, &serverssl1, &clientssl1, NULL,
 447                                NULL)) {
 448         printf("Unable to create SSL objects\n");
 449         goto end;
 450     }
 451
 452     if (!create_ssl_connection(serverssl1, clientssl1)) {
 453         printf("Unable to create SSL connection\n");
 454         goto end;
 455     }
 456     sess1 = SSL_get1_session(clientssl1);
 457     if (sess1 == NULL) {
 458         printf("Unexpected NULL session\n");
 459         goto end;
 460     }
 461
 462     if (fix.use_int_cache && SSL_CTX_add_session(cctx, sess1)) {
 463         /* Should have failed because it should already be in the cache */
 464         printf("Unexpected success adding session to cache\n");
 465         goto end;
 466     }
 467
 468     if (fix.use_ext_cache && (new_called != 1 || remove_called != 0)) {
 469         printf("Session not added to cache\n");
 470         goto end;
 471     }
 472
 473     if (!create_ssl_objects(sctx, cctx, &serverssl2, &clientssl2, NULL, NULL)) {
 474         printf("Unable to create second SSL objects\n");
 475         goto end;
 476     }
 477
 478     if (!create_ssl_connection(serverssl2, clientssl2)) {
 479         printf("Unable to create second SSL connection\n");
 480         goto end;
 481     }
 482
 483     sess2 = SSL_get1_session(clientssl2);
 484     if (sess2 == NULL) {
 485         printf("Unexpected NULL session from clientssl2\n");
 486         goto end;
 487     }
 488
 489     if (fix.use_ext_cache && (new_called != 2 || remove_called != 0)) {
 490         printf("Remove session callback unexpectedly called\n");
 491         goto end;
 492     }
 493
 494     /*
 495      * This should clear sess2 from the cache because it is a "bad" session. See
 496      * SSL_set_session() documentation.
 497      */
 498     if (!SSL_set_session(clientssl2, sess1)) {
 499         printf("Unexpected failure setting session\n");
 500         goto end;
 501     }
 502
 503     if (fix.use_ext_cache && (new_called != 2 || remove_called != 1)) {
 504         printf("Failed to call callback to remove session\n");
 505         goto end;
 506     }
 507
 508
 509     if (SSL_get_session(clientssl2) != sess1) {
 510         printf("Unexpected session found\n");
 511         goto end;
 512     }
 513
 514     if (fix.use_int_cache) {
 515         if (!SSL_CTX_add_session(cctx, sess2)) {
 516             /*
 517              * Should have succeeded because it should not already be in the cache
 518              */
 519             printf("Unexpected failure adding session to cache\n");
 520             goto end;
 521         }
 522
 523         if (!SSL_CTX_remove_session(cctx, sess2)) {
 524             printf("Unexpected failure removing session from cache\n");
 525             goto end;
 526         }
 527
 528         /* This is for the purposes of internal cache testing...ignore the
 529          * counter for external cache
 530          */
 531         if (fix.use_ext_cache)
 532             remove_called--;
 533     }
 534
 535     /* This shouldn't be in the cache so should fail */
 536     if (SSL_CTX_remove_session(cctx, sess2)) {
 537         printf("Unexpected success removing session from cache\n");
 538         goto end;
 539     }
 540
 541     if (fix.use_ext_cache && (new_called != 2 || remove_called != 2)) {
 542         printf("Failed to call callback to remove session #2\n");
 543         goto end;
 544     }
 545
 546 #if !defined(OPENSSL_NO_TLS1_1) && !defined(OPENSSL_NO_TLS1_2)
 547     /* Force a connection failure */
 548     SSL_CTX_set_max_proto_version(sctx, TLS1_1_VERSION);
 549
 550     if (!create_ssl_objects(sctx, cctx, &serverssl3, &clientssl3, NULL, NULL)) {
 551         printf("Unable to create third SSL objects\n");
 552         goto end;
 553     }
 554
 555     if (!SSL_set_session(clientssl3, sess1)) {
 556         printf("Unable to set session for third connection\n");
 557         goto end;
 558     }
 559
 560     /* This should fail because of the mismatched protocol versions */
 561     if (create_ssl_connection(serverssl3, clientssl3)) {
 562         printf("Unable to create third SSL connection\n");
 563         goto end;
 564     }
 565
 566
 567     /* We should have automatically removed the session from the cache */
 568     if (fix.use_ext_cache && (new_called != 2 || remove_called != 3)) {
 569         printf("Failed to call callback to remove session #2\n");
 570         goto end;
 571     }
 572
 573     if (fix.use_int_cache && !SSL_CTX_add_session(cctx, sess2)) {
 574         /*
 575          * Should have succeeded because it should not already be in the cache
 576          */
 577         printf("Unexpected failure adding session to cache #2\n");
 578         goto end;
 579     }
 580 #endif
 581
 582     testresult = 1;
 583
 584  end:
 585     SSL_free(serverssl1);
 586     SSL_free(clientssl1);
 587     SSL_free(serverssl2);
 588     SSL_free(clientssl2);
 589 #ifndef OPENSSL_NO_TLS1_1
 590     SSL_free(serverssl3);
 591     SSL_free(clientssl3);
 592 #endif
 593     SSL_SESSION_free(sess1);
 594     SSL_SESSION_free(sess2);
 595     /*
 596      * Check if we need to remove any sessions up-refed for the external cache
 597      */
 598     if (new_called >= 1)
 599         SSL_SESSION_free(sess1);
 600     if (new_called >= 2)
 601         SSL_SESSION_free(sess2);
 602     SSL_CTX_free(sctx);
 603     SSL_CTX_free(cctx);
 604
 605     return testresult;
 606 }
 607
 608 static int test_session_with_only_int_cache(void)
 609 {
 610     SETUP_TEST_FIXTURE(SSL_SESSION_TEST_FIXTURE, ssl_session_set_up);
 611
 612     fixture.use_ext_cache = 0;
 613
 614     EXECUTE_TEST(execute_test_session, ssl_session_tear_down);
 615 }
 616
 617 static int test_session_with_only_ext_cache(void)
 618 {
 619     SETUP_TEST_FIXTURE(SSL_SESSION_TEST_FIXTURE, ssl_session_set_up);
 620
 621     fixture.use_int_cache = 0;
 622
 623     EXECUTE_TEST(execute_test_session, ssl_session_tear_down);
 624 }
 625
 626 static int test_session_with_both_cache(void)
 627 {
 628     SETUP_TEST_FIXTURE(SSL_SESSION_TEST_FIXTURE, ssl_session_set_up);
 629
 630     EXECUTE_TEST(execute_test_session, ssl_session_tear_down);
 631 }
 632
 633 #define USE_NULL    0
 634 #define USE_BIO_1   1
 635 #define USE_BIO_2   2
 636
 637 #define TOTAL_SSL_SET_BIO_TESTS (3 * 3 * 3 * 3)
 638
 639 static void setupbio(BIO **res, BIO *bio1, BIO *bio2, int type)
 640 {
 641     switch (type) {
 642     case USE_NULL:
 643         *res = NULL;
 644         break;
 645     case USE_BIO_1:
 646         *res = bio1;
 647         break;
 648     case USE_BIO_2:
 649         *res = bio2;
 650         break;
 651     }
 652 }
 653
 654 static int test_ssl_set_bio(int idx)
 655 {
 656     SSL_CTX *ctx = SSL_CTX_new(TLS_method());
 657     BIO *bio1 = NULL;
 658     BIO *bio2 = NULL;
 659     BIO *irbio = NULL, *iwbio = NULL, *nrbio = NULL, *nwbio = NULL;
 660     SSL *ssl = NULL;
 661     int initrbio, initwbio, newrbio, newwbio;
 662     int testresult = 0;
 663
 664     if (ctx == NULL) {
 665         printf("Failed to allocate SSL_CTX\n");
 666         goto end;
 667     }
 668
 669     ssl = SSL_new(ctx);
 670     if (ssl == NULL) {
 671         printf("Failed to allocate SSL object\n");
 672         goto end;
 673     }
 674
 675     initrbio = idx % 3;
 676     idx /= 3;
 677     initwbio = idx % 3;
 678     idx /= 3;
 679     newrbio = idx % 3;
 680     idx /= 3;
 681     newwbio = idx;
 682     OPENSSL_assert(newwbio <= 2);
 683
 684     if (initrbio == USE_BIO_1 || initwbio == USE_BIO_1 || newrbio == USE_BIO_1
 685             || newwbio == USE_BIO_1) {
 686         bio1 = BIO_new(BIO_s_mem());
 687         if (bio1 == NULL) {
 688             printf("Failed to allocate bio1\n");
 689             goto end;
 690         }
 691     }
 692
 693     if (initrbio == USE_BIO_2 || initwbio == USE_BIO_2 || newrbio == USE_BIO_2
 694             || newwbio == USE_BIO_2) {
 695         bio2 = BIO_new(BIO_s_mem());
 696         if (bio2 == NULL) {
 697             printf("Failed to allocate bio2\n");
 698             goto end;
 699         }
 700     }
 701
 702     setupbio(&irbio, bio1, bio2, initrbio);
 703     setupbio(&iwbio, bio1, bio2, initwbio);
 704
 705     /*
 706      * We want to maintain our own refs to these BIO, so do an up ref for each
 707      * BIO that will have ownersip transferred in the SSL_set_bio() call
 708      */
 709     if (irbio != NULL)
 710         BIO_up_ref(irbio);
 711     if (iwbio != NULL && iwbio != irbio)
 712         BIO_up_ref(iwbio);
 713
 714     SSL_set_bio(ssl, irbio, iwbio);
 715
 716     setupbio(&nrbio, bio1, bio2, newrbio);
 717     setupbio(&nwbio, bio1, bio2, newwbio);
 718
 719     /*
 720      * We will (maybe) transfer ownership again so do more up refs.
 721      * SSL_set_bio() has some really complicated ownership rules where BIOs have
 722      * already been set!
 723      */
 724     if (nrbio != NULL && nrbio != irbio && (nwbio != iwbio || nrbio != nwbio))
 725         BIO_up_ref(nrbio);
 726     if (nwbio != NULL && nwbio != nrbio && (nwbio != iwbio || (nwbio == iwbio && irbio == iwbio)))
 727         BIO_up_ref(nwbio);
 728
 729     SSL_set_bio(ssl, nrbio, nwbio);
 730
 731     testresult = 1;
 732
 733  end:
 734     SSL_free(ssl);
 735     BIO_free(bio1);
 736     BIO_free(bio2);
 737     /*
 738      * This test is checking that the ref counting for SSL_set_bio is correct.
 739      * If we get here and we did too many frees then we will fail in the above
 740      * functions. If we haven't done enough then this will only be detected in
 741      * a crypto-mdebug build
 742      */
 743     SSL_CTX_free(ctx);
 744
 745     return testresult;
 746 }
 747
 748 typedef struct ssl_bio_test_fixture {
 749     const char *test_case_name;
 750     int pop_ssl;
 751     enum { NO_BIO_CHANGE, CHANGE_RBIO, CHANGE_WBIO } change_bio;
 752 } SSL_BIO_TEST_FIXTURE;
 753
 754 static SSL_BIO_TEST_FIXTURE ssl_bio_set_up(const char *const test_case_name)
 755 {
 756     SSL_BIO_TEST_FIXTURE fixture;
 757
 758     fixture.test_case_name = test_case_name;
 759     fixture.pop_ssl = 0;
 760     fixture.change_bio = NO_BIO_CHANGE;
 761
 762     return fixture;
 763 }
 764
 765 static void ssl_bio_tear_down(SSL_BIO_TEST_FIXTURE fixture)
 766 {
 767 }
 768
 769 static int execute_test_ssl_bio(SSL_BIO_TEST_FIXTURE fix)
 770 {
 771     BIO *sslbio = NULL, *membio1 = NULL, *membio2 = NULL;
 772     SSL_CTX *ctx = SSL_CTX_new(TLS_method());
 773     SSL *ssl = NULL;
 774     int testresult = 0;
 775
 776     if (ctx == NULL) {
 777         printf("Failed to allocate SSL_CTX\n");
 778         return 0;
 779     }
 780
 781     ssl = SSL_new(ctx);
 782     if (ssl == NULL) {
 783         printf("Failed to allocate SSL object\n");
 784         goto end;
 785     }
 786
 787     sslbio = BIO_new(BIO_f_ssl());
 788     membio1 = BIO_new(BIO_s_mem());
 789
 790     if (sslbio == NULL || membio1 == NULL) {
 791         printf("Malloc failure creating BIOs\n");
 792         goto end;
 793     }
 794
 795     BIO_set_ssl(sslbio, ssl, BIO_CLOSE);
 796
 797     /*
 798      * If anything goes wrong here then we could leak memory, so this will
 799      * be caught in a crypto-mdebug build
 800      */
 801     BIO_push(sslbio, membio1);
 802
 803     /* Verify chaning the rbio/wbio directly does not cause leaks */
 804     if (fix.change_bio != NO_BIO_CHANGE) {
 805         membio2 = BIO_new(BIO_s_mem());
 806         if (membio2 == NULL) {
 807             printf("Malloc failure creating membio2\n");
 808             goto end;
 809         }
 810         if (fix.change_bio == CHANGE_RBIO)
 811             SSL_set0_rbio(ssl, membio2);
 812         else
 813             SSL_set0_wbio(ssl, membio2);
 814     }
 815     ssl = NULL;
 816
 817     if (fix.pop_ssl)
 818         BIO_pop(sslbio);
 819     else
 820         BIO_pop(membio1);
 821
 822     testresult = 1;
 823  end:
 824     BIO_free(membio1);
 825     BIO_free(sslbio);
 826     SSL_free(ssl);
 827     SSL_CTX_free(ctx);
 828
 829     return testresult;
 830 }
 831
 832 static int test_ssl_bio_pop_next_bio(void)
 833 {
 834     SETUP_TEST_FIXTURE(SSL_BIO_TEST_FIXTURE, ssl_bio_set_up);
 835
 836     EXECUTE_TEST(execute_test_ssl_bio, ssl_bio_tear_down);
 837 }
 838
 839 static int test_ssl_bio_pop_ssl_bio(void)
 840 {
 841     SETUP_TEST_FIXTURE(SSL_BIO_TEST_FIXTURE, ssl_bio_set_up);
 842
 843     fixture.pop_ssl = 1;
 844
 845     EXECUTE_TEST(execute_test_ssl_bio, ssl_bio_tear_down);
 846 }
 847
 848 static int test_ssl_bio_change_rbio(void)
 849 {
 850     SETUP_TEST_FIXTURE(SSL_BIO_TEST_FIXTURE, ssl_bio_set_up);
 851
 852     fixture.change_bio = CHANGE_RBIO;
 853
 854     EXECUTE_TEST(execute_test_ssl_bio, ssl_bio_tear_down);
 855 }
 856
 857 static int test_ssl_bio_change_wbio(void)
 858 {
 859     SETUP_TEST_FIXTURE(SSL_BIO_TEST_FIXTURE, ssl_bio_set_up);
 860
 861     fixture.change_bio = CHANGE_WBIO;
 862
 863     EXECUTE_TEST(execute_test_ssl_bio, ssl_bio_tear_down);
 864 }
 865
 866 int main(int argc, char *argv[])
 867 {
 868     BIO *err = NULL;
 869     int testresult = 1;
 870
 871     if (argc != 3) {
 872         printf("Invalid argument count\n");
 873         return 1;
 874     }
 875
 876     cert = argv[1];
 877     privkey = argv[2];
 878
 879     err = BIO_new_fp(stderr, BIO_NOCLOSE | BIO_FP_TEXT);
 880
 881     CRYPTO_set_mem_debug(1);
 882     CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
 883
 884     ADD_TEST(test_large_message_tls);
 885     ADD_TEST(test_large_message_tls_read_ahead);
 886 #ifndef OPENSSL_NO_DTLS
 887     ADD_TEST(test_large_message_dtls);
 888 #endif
 889     ADD_TEST(test_tlsext_status_type);
 890     ADD_TEST(test_session_with_only_int_cache);
 891     ADD_TEST(test_session_with_only_ext_cache);
 892     ADD_TEST(test_session_with_both_cache);
 893     ADD_ALL_TESTS(test_ssl_set_bio, TOTAL_SSL_SET_BIO_TESTS);
 894     ADD_TEST(test_ssl_bio_pop_next_bio);
 895     ADD_TEST(test_ssl_bio_pop_ssl_bio);
 896     ADD_TEST(test_ssl_bio_change_rbio);
 897     ADD_TEST(test_ssl_bio_change_wbio);
 898
 899     testresult = run_tests(argv[0]);
 900
 901     bio_s_mempacket_test_free();
 902
 903 #ifndef OPENSSL_NO_CRYPTO_MDEBUG
 904     if (CRYPTO_mem_leaks(err) <= 0)
 905         testresult = 1;
 906 #endif
 907     BIO_free(err);
 908
 909     if (!testresult)
 910         printf("PASS\n");
 911
 912     return testresult;
 913 }