1/* 2 * Copyright 1995-2019 The OpenSSL Project Authors. All Rights Reserved. 3 * Copyright 2005 Nokia. All rights reserved. 4 * 5 * Licensed under the OpenSSL license (the "License"). You may not use 6 * this file except in compliance with the License. You can obtain a copy 7 * in the file LICENSE in the source distribution or at 8 * https://www.openssl.org/source/license.html 9 */ 10 11#include <stdio.h> 12#include "ssl_local.h" 13#include <openssl/evp.h> 14#include <openssl/md5.h> 15#include "internal/cryptlib.h" 16 17static int ssl3_generate_key_block(SSL *s, unsigned char *km, int num) 18{ 19 EVP_MD_CTX *m5; 20 EVP_MD_CTX *s1; 21 unsigned char buf[16], smd[SHA_DIGEST_LENGTH]; 22 unsigned char c = 'A'; 23 unsigned int i, j, k; 24 int ret = 0; 25 26#ifdef CHARSET_EBCDIC 27 c = os_toascii[c]; /* 'A' in ASCII */ 28#endif 29 k = 0; 30 m5 = EVP_MD_CTX_new(); 31 s1 = EVP_MD_CTX_new(); 32 if (m5 == NULL || s1 == NULL) { 33 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_GENERATE_KEY_BLOCK, 34 ERR_R_MALLOC_FAILURE); 35 goto err; 36 } 37 EVP_MD_CTX_set_flags(m5, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW); 38 for (i = 0; (int)i < num; i += MD5_DIGEST_LENGTH) { 39 k++; 40 if (k > sizeof(buf)) { 41 /* bug: 'buf' is too small for this ciphersuite */ 42 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_GENERATE_KEY_BLOCK, 43 ERR_R_INTERNAL_ERROR); 44 goto err; 45 } 46 47 for (j = 0; j < k; j++) 48 buf[j] = c; 49 c++; 50 if (!EVP_DigestInit_ex(s1, EVP_sha1(), NULL) 51 || !EVP_DigestUpdate(s1, buf, k) 52 || !EVP_DigestUpdate(s1, s->session->master_key, 53 s->session->master_key_length) 54 || !EVP_DigestUpdate(s1, s->s3->server_random, SSL3_RANDOM_SIZE) 55 || !EVP_DigestUpdate(s1, s->s3->client_random, SSL3_RANDOM_SIZE) 56 || !EVP_DigestFinal_ex(s1, smd, NULL) 57 || !EVP_DigestInit_ex(m5, EVP_md5(), NULL) 58 || !EVP_DigestUpdate(m5, s->session->master_key, 59 s->session->master_key_length) 60 || !EVP_DigestUpdate(m5, smd, SHA_DIGEST_LENGTH)) { 61 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_GENERATE_KEY_BLOCK, 62 ERR_R_INTERNAL_ERROR); 63 goto err; 64 } 65 if ((int)(i + MD5_DIGEST_LENGTH) > num) { 66 if (!EVP_DigestFinal_ex(m5, smd, NULL)) { 67 SSLfatal(s, SSL_AD_INTERNAL_ERROR, 68 SSL_F_SSL3_GENERATE_KEY_BLOCK, ERR_R_INTERNAL_ERROR); 69 goto err; 70 } 71 memcpy(km, smd, (num - i)); 72 } else { 73 if (!EVP_DigestFinal_ex(m5, km, NULL)) { 74 SSLfatal(s, SSL_AD_INTERNAL_ERROR, 75 SSL_F_SSL3_GENERATE_KEY_BLOCK, ERR_R_INTERNAL_ERROR); 76 goto err; 77 } 78 } 79 80 km += MD5_DIGEST_LENGTH; 81 } 82 OPENSSL_cleanse(smd, sizeof(smd)); 83 ret = 1; 84 err: 85 EVP_MD_CTX_free(m5); 86 EVP_MD_CTX_free(s1); 87 return ret; 88} 89 90int ssl3_change_cipher_state(SSL *s, int which) 91{ 92 unsigned char *p, *mac_secret; 93 unsigned char *ms, *key, *iv; 94 EVP_CIPHER_CTX *dd; 95 const EVP_CIPHER *c; 96#ifndef OPENSSL_NO_COMP 97 COMP_METHOD *comp; 98#endif 99 const EVP_MD *m; 100 int mdi; 101 size_t n, i, j, k, cl; 102 int reuse_dd = 0; 103 104 c = s->s3->tmp.new_sym_enc; 105 m = s->s3->tmp.new_hash; 106 /* m == NULL will lead to a crash later */ 107 if (!ossl_assert(m != NULL)) { 108 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_CHANGE_CIPHER_STATE, 109 ERR_R_INTERNAL_ERROR); 110 goto err; 111 } 112#ifndef OPENSSL_NO_COMP 113 if (s->s3->tmp.new_compression == NULL) 114 comp = NULL; 115 else 116 comp = s->s3->tmp.new_compression->method; 117#endif 118 119 if (which & SSL3_CC_READ) { 120 if (s->enc_read_ctx != NULL) { 121 reuse_dd = 1; 122 } else if ((s->enc_read_ctx = EVP_CIPHER_CTX_new()) == NULL) { 123 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_CHANGE_CIPHER_STATE, 124 ERR_R_MALLOC_FAILURE); 125 goto err; 126 } else { 127 /* 128 * make sure it's initialised in case we exit later with an error 129 */ 130 EVP_CIPHER_CTX_reset(s->enc_read_ctx); 131 } 132 dd = s->enc_read_ctx; 133 134 if (ssl_replace_hash(&s->read_hash, m) == NULL) { 135 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_CHANGE_CIPHER_STATE, 136 ERR_R_INTERNAL_ERROR); 137 goto err; 138 } 139#ifndef OPENSSL_NO_COMP 140 /* COMPRESS */ 141 COMP_CTX_free(s->expand); 142 s->expand = NULL; 143 if (comp != NULL) { 144 s->expand = COMP_CTX_new(comp); 145 if (s->expand == NULL) { 146 SSLfatal(s, SSL_AD_INTERNAL_ERROR, 147 SSL_F_SSL3_CHANGE_CIPHER_STATE, 148 SSL_R_COMPRESSION_LIBRARY_ERROR); 149 goto err; 150 } 151 } 152#endif 153 RECORD_LAYER_reset_read_sequence(&s->rlayer); 154 mac_secret = &(s->s3->read_mac_secret[0]); 155 } else { 156 s->statem.enc_write_state = ENC_WRITE_STATE_INVALID; 157 if (s->enc_write_ctx != NULL) { 158 reuse_dd = 1; 159 } else if ((s->enc_write_ctx = EVP_CIPHER_CTX_new()) == NULL) { 160 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_CHANGE_CIPHER_STATE, 161 ERR_R_MALLOC_FAILURE); 162 goto err; 163 } else { 164 /* 165 * make sure it's initialised in case we exit later with an error 166 */ 167 EVP_CIPHER_CTX_reset(s->enc_write_ctx); 168 } 169 dd = s->enc_write_ctx; 170 if (ssl_replace_hash(&s->write_hash, m) == NULL) { 171 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_CHANGE_CIPHER_STATE, 172 ERR_R_MALLOC_FAILURE); 173 goto err; 174 } 175#ifndef OPENSSL_NO_COMP 176 /* COMPRESS */ 177 COMP_CTX_free(s->compress); 178 s->compress = NULL; 179 if (comp != NULL) { 180 s->compress = COMP_CTX_new(comp); 181 if (s->compress == NULL) { 182 SSLfatal(s, SSL_AD_INTERNAL_ERROR, 183 SSL_F_SSL3_CHANGE_CIPHER_STATE, 184 SSL_R_COMPRESSION_LIBRARY_ERROR); 185 goto err; 186 } 187 } 188#endif 189 RECORD_LAYER_reset_write_sequence(&s->rlayer); 190 mac_secret = &(s->s3->write_mac_secret[0]); 191 } 192 193 if (reuse_dd) 194 EVP_CIPHER_CTX_reset(dd); 195 196 p = s->s3->tmp.key_block; 197 mdi = EVP_MD_size(m); 198 if (mdi < 0) { 199 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_CHANGE_CIPHER_STATE, 200 ERR_R_INTERNAL_ERROR); 201 goto err; 202 } 203 i = mdi; 204 cl = EVP_CIPHER_key_length(c); 205 j = cl; 206 k = EVP_CIPHER_iv_length(c); 207 if ((which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) || 208 (which == SSL3_CHANGE_CIPHER_SERVER_READ)) { 209 ms = &(p[0]); 210 n = i + i; 211 key = &(p[n]); 212 n += j + j; 213 iv = &(p[n]); 214 n += k + k; 215 } else { 216 n = i; 217 ms = &(p[n]); 218 n += i + j; 219 key = &(p[n]); 220 n += j + k; 221 iv = &(p[n]); 222 n += k; 223 } 224 225 if (n > s->s3->tmp.key_block_length) { 226 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_CHANGE_CIPHER_STATE, 227 ERR_R_INTERNAL_ERROR); 228 goto err; 229 } 230 231 memcpy(mac_secret, ms, i); 232 233 if (!EVP_CipherInit_ex(dd, c, NULL, key, iv, (which & SSL3_CC_WRITE))) { 234 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_CHANGE_CIPHER_STATE, 235 ERR_R_INTERNAL_ERROR); 236 goto err; 237 } 238 239 s->statem.enc_write_state = ENC_WRITE_STATE_VALID; 240 return 1; 241 err: 242 return 0; 243} 244 245int ssl3_setup_key_block(SSL *s) 246{ 247 unsigned char *p; 248 const EVP_CIPHER *c; 249 const EVP_MD *hash; 250 int num; 251 int ret = 0; 252 SSL_COMP *comp; 253 254 if (s->s3->tmp.key_block_length != 0) 255 return 1; 256 257 if (!ssl_cipher_get_evp(s->session, &c, &hash, NULL, NULL, &comp, 0)) { 258 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_SETUP_KEY_BLOCK, 259 SSL_R_CIPHER_OR_HASH_UNAVAILABLE); 260 return 0; 261 } 262 263 s->s3->tmp.new_sym_enc = c; 264 s->s3->tmp.new_hash = hash; 265#ifdef OPENSSL_NO_COMP 266 s->s3->tmp.new_compression = NULL; 267#else 268 s->s3->tmp.new_compression = comp; 269#endif 270 271 num = EVP_MD_size(hash); 272 if (num < 0) 273 return 0; 274 275 num = EVP_CIPHER_key_length(c) + num + EVP_CIPHER_iv_length(c); 276 num *= 2; 277 278 ssl3_cleanup_key_block(s); 279 280 if ((p = OPENSSL_malloc(num)) == NULL) { 281 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_SETUP_KEY_BLOCK, 282 ERR_R_MALLOC_FAILURE); 283 return 0; 284 } 285 286 s->s3->tmp.key_block_length = num; 287 s->s3->tmp.key_block = p; 288 289 /* Calls SSLfatal() as required */ 290 ret = ssl3_generate_key_block(s, p, num); 291 292 if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS)) { 293 /* 294 * enable vulnerability countermeasure for CBC ciphers with known-IV 295 * problem (http://www.openssl.org/~bodo/tls-cbc.txt) 296 */ 297 s->s3->need_empty_fragments = 1; 298 299 if (s->session->cipher != NULL) { 300 if (s->session->cipher->algorithm_enc == SSL_eNULL) 301 s->s3->need_empty_fragments = 0; 302 303#ifndef OPENSSL_NO_RC4 304 if (s->session->cipher->algorithm_enc == SSL_RC4) 305 s->s3->need_empty_fragments = 0; 306#endif 307 } 308 } 309 310 return ret; 311} 312 313void ssl3_cleanup_key_block(SSL *s) 314{ 315 OPENSSL_clear_free(s->s3->tmp.key_block, s->s3->tmp.key_block_length); 316 s->s3->tmp.key_block = NULL; 317 s->s3->tmp.key_block_length = 0; 318} 319 320int ssl3_init_finished_mac(SSL *s) 321{ 322 BIO *buf = BIO_new(BIO_s_mem()); 323 324 if (buf == NULL) { 325 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_INIT_FINISHED_MAC, 326 ERR_R_MALLOC_FAILURE); 327 return 0; 328 } 329 ssl3_free_digest_list(s); 330 s->s3->handshake_buffer = buf; 331 (void)BIO_set_close(s->s3->handshake_buffer, BIO_CLOSE); 332 return 1; 333} 334 335/* 336 * Free digest list. Also frees handshake buffer since they are always freed 337 * together. 338 */ 339 340void ssl3_free_digest_list(SSL *s) 341{ 342 BIO_free(s->s3->handshake_buffer); 343 s->s3->handshake_buffer = NULL; 344 EVP_MD_CTX_free(s->s3->handshake_dgst); 345 s->s3->handshake_dgst = NULL; 346} 347 348int ssl3_finish_mac(SSL *s, const unsigned char *buf, size_t len) 349{ 350 int ret; 351 352 if (s->s3->handshake_dgst == NULL) { 353 /* Note: this writes to a memory BIO so a failure is a fatal error */ 354 if (len > INT_MAX) { 355 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_FINISH_MAC, 356 SSL_R_OVERFLOW_ERROR); 357 return 0; 358 } 359 ret = BIO_write(s->s3->handshake_buffer, (void *)buf, (int)len); 360 if (ret <= 0 || ret != (int)len) { 361 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_FINISH_MAC, 362 ERR_R_INTERNAL_ERROR); 363 return 0; 364 } 365 } else { 366 ret = EVP_DigestUpdate(s->s3->handshake_dgst, buf, len); 367 if (!ret) { 368 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_FINISH_MAC, 369 ERR_R_INTERNAL_ERROR); 370 return 0; 371 } 372 } 373 return 1; 374} 375 376int ssl3_digest_cached_records(SSL *s, int keep) 377{ 378 const EVP_MD *md; 379 long hdatalen; 380 void *hdata; 381 382 if (s->s3->handshake_dgst == NULL) { 383 hdatalen = BIO_get_mem_data(s->s3->handshake_buffer, &hdata); 384 if (hdatalen <= 0) { 385 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_DIGEST_CACHED_RECORDS, 386 SSL_R_BAD_HANDSHAKE_LENGTH); 387 return 0; 388 } 389 390 s->s3->handshake_dgst = EVP_MD_CTX_new(); 391 if (s->s3->handshake_dgst == NULL) { 392 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_DIGEST_CACHED_RECORDS, 393 ERR_R_MALLOC_FAILURE); 394 return 0; 395 } 396 397 md = ssl_handshake_md(s); 398 if (md == NULL || !EVP_DigestInit_ex(s->s3->handshake_dgst, md, NULL) 399 || !EVP_DigestUpdate(s->s3->handshake_dgst, hdata, hdatalen)) { 400 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_DIGEST_CACHED_RECORDS, 401 ERR_R_INTERNAL_ERROR); 402 return 0; 403 } 404 } 405 if (keep == 0) { 406 BIO_free(s->s3->handshake_buffer); 407 s->s3->handshake_buffer = NULL; 408 } 409 410 return 1; 411} 412 413size_t ssl3_final_finish_mac(SSL *s, const char *sender, size_t len, 414 unsigned char *p) 415{ 416 int ret; 417 EVP_MD_CTX *ctx = NULL; 418 419 if (!ssl3_digest_cached_records(s, 0)) { 420 /* SSLfatal() already called */ 421 return 0; 422 } 423 424 if (EVP_MD_CTX_type(s->s3->handshake_dgst) != NID_md5_sha1) { 425 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_FINAL_FINISH_MAC, 426 SSL_R_NO_REQUIRED_DIGEST); 427 return 0; 428 } 429 430 ctx = EVP_MD_CTX_new(); 431 if (ctx == NULL) { 432 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_FINAL_FINISH_MAC, 433 ERR_R_MALLOC_FAILURE); 434 return 0; 435 } 436 if (!EVP_MD_CTX_copy_ex(ctx, s->s3->handshake_dgst)) { 437 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_FINAL_FINISH_MAC, 438 ERR_R_INTERNAL_ERROR); 439 ret = 0; 440 goto err; 441 } 442 443 ret = EVP_MD_CTX_size(ctx); 444 if (ret < 0) { 445 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_FINAL_FINISH_MAC, 446 ERR_R_INTERNAL_ERROR); 447 ret = 0; 448 goto err; 449 } 450 451 if ((sender != NULL && EVP_DigestUpdate(ctx, sender, len) <= 0) 452 || EVP_MD_CTX_ctrl(ctx, EVP_CTRL_SSL3_MASTER_SECRET, 453 (int)s->session->master_key_length, 454 s->session->master_key) <= 0 455 || EVP_DigestFinal_ex(ctx, p, NULL) <= 0) { 456 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_FINAL_FINISH_MAC, 457 ERR_R_INTERNAL_ERROR); 458 ret = 0; 459 } 460 461 err: 462 EVP_MD_CTX_free(ctx); 463 464 return ret; 465} 466 467int ssl3_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p, 468 size_t len, size_t *secret_size) 469{ 470 static const unsigned char *salt[3] = { 471#ifndef CHARSET_EBCDIC 472 (const unsigned char *)"A", 473 (const unsigned char *)"BB", 474 (const unsigned char *)"CCC", 475#else 476 (const unsigned char *)"\x41", 477 (const unsigned char *)"\x42\x42", 478 (const unsigned char *)"\x43\x43\x43", 479#endif 480 }; 481 unsigned char buf[EVP_MAX_MD_SIZE]; 482 EVP_MD_CTX *ctx = EVP_MD_CTX_new(); 483 int i, ret = 1; 484 unsigned int n; 485 size_t ret_secret_size = 0; 486 487 if (ctx == NULL) { 488 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_GENERATE_MASTER_SECRET, 489 ERR_R_MALLOC_FAILURE); 490 return 0; 491 } 492 for (i = 0; i < 3; i++) { 493 if (EVP_DigestInit_ex(ctx, s->ctx->sha1, NULL) <= 0 494 || EVP_DigestUpdate(ctx, salt[i], 495 strlen((const char *)salt[i])) <= 0 496 || EVP_DigestUpdate(ctx, p, len) <= 0 497 || EVP_DigestUpdate(ctx, &(s->s3->client_random[0]), 498 SSL3_RANDOM_SIZE) <= 0 499 || EVP_DigestUpdate(ctx, &(s->s3->server_random[0]), 500 SSL3_RANDOM_SIZE) <= 0 501 /* TODO(size_t) : convert me */ 502 || EVP_DigestFinal_ex(ctx, buf, &n) <= 0 503 || EVP_DigestInit_ex(ctx, s->ctx->md5, NULL) <= 0 504 || EVP_DigestUpdate(ctx, p, len) <= 0 505 || EVP_DigestUpdate(ctx, buf, n) <= 0 506 || EVP_DigestFinal_ex(ctx, out, &n) <= 0) { 507 SSLfatal(s, SSL_AD_INTERNAL_ERROR, 508 SSL_F_SSL3_GENERATE_MASTER_SECRET, ERR_R_INTERNAL_ERROR); 509 ret = 0; 510 break; 511 } 512 out += n; 513 ret_secret_size += n; 514 } 515 EVP_MD_CTX_free(ctx); 516 517 OPENSSL_cleanse(buf, sizeof(buf)); 518 if (ret) 519 *secret_size = ret_secret_size; 520 return ret; 521} 522 523int ssl3_alert_code(int code) 524{ 525 switch (code) { 526 case SSL_AD_CLOSE_NOTIFY: 527 return SSL3_AD_CLOSE_NOTIFY; 528 case SSL_AD_UNEXPECTED_MESSAGE: 529 return SSL3_AD_UNEXPECTED_MESSAGE; 530 case SSL_AD_BAD_RECORD_MAC: 531 return SSL3_AD_BAD_RECORD_MAC; 532 case SSL_AD_DECRYPTION_FAILED: 533 return SSL3_AD_BAD_RECORD_MAC; 534 case SSL_AD_RECORD_OVERFLOW: 535 return SSL3_AD_BAD_RECORD_MAC; 536 case SSL_AD_DECOMPRESSION_FAILURE: 537 return SSL3_AD_DECOMPRESSION_FAILURE; 538 case SSL_AD_HANDSHAKE_FAILURE: 539 return SSL3_AD_HANDSHAKE_FAILURE; 540 case SSL_AD_NO_CERTIFICATE: 541 return SSL3_AD_NO_CERTIFICATE; 542 case SSL_AD_BAD_CERTIFICATE: 543 return SSL3_AD_BAD_CERTIFICATE; 544 case SSL_AD_UNSUPPORTED_CERTIFICATE: 545 return SSL3_AD_UNSUPPORTED_CERTIFICATE; 546 case SSL_AD_CERTIFICATE_REVOKED: 547 return SSL3_AD_CERTIFICATE_REVOKED; 548 case SSL_AD_CERTIFICATE_EXPIRED: 549 return SSL3_AD_CERTIFICATE_EXPIRED; 550 case SSL_AD_CERTIFICATE_UNKNOWN: 551 return SSL3_AD_CERTIFICATE_UNKNOWN; 552 case SSL_AD_ILLEGAL_PARAMETER: 553 return SSL3_AD_ILLEGAL_PARAMETER; 554 case SSL_AD_UNKNOWN_CA: 555 return SSL3_AD_BAD_CERTIFICATE; 556 case SSL_AD_ACCESS_DENIED: 557 return SSL3_AD_HANDSHAKE_FAILURE; 558 case SSL_AD_DECODE_ERROR: 559 return SSL3_AD_HANDSHAKE_FAILURE; 560 case SSL_AD_DECRYPT_ERROR: 561 return SSL3_AD_HANDSHAKE_FAILURE; 562 case SSL_AD_EXPORT_RESTRICTION: 563 return SSL3_AD_HANDSHAKE_FAILURE; 564 case SSL_AD_PROTOCOL_VERSION: 565 return SSL3_AD_HANDSHAKE_FAILURE; 566 case SSL_AD_INSUFFICIENT_SECURITY: 567 return SSL3_AD_HANDSHAKE_FAILURE; 568 case SSL_AD_INTERNAL_ERROR: 569 return SSL3_AD_HANDSHAKE_FAILURE; 570 case SSL_AD_USER_CANCELLED: 571 return SSL3_AD_HANDSHAKE_FAILURE; 572 case SSL_AD_NO_RENEGOTIATION: 573 return -1; /* Don't send it :-) */ 574 case SSL_AD_UNSUPPORTED_EXTENSION: 575 return SSL3_AD_HANDSHAKE_FAILURE; 576 case SSL_AD_CERTIFICATE_UNOBTAINABLE: 577 return SSL3_AD_HANDSHAKE_FAILURE; 578 case SSL_AD_UNRECOGNIZED_NAME: 579 return SSL3_AD_HANDSHAKE_FAILURE; 580 case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE: 581 return SSL3_AD_HANDSHAKE_FAILURE; 582 case SSL_AD_BAD_CERTIFICATE_HASH_VALUE: 583 return SSL3_AD_HANDSHAKE_FAILURE; 584 case SSL_AD_UNKNOWN_PSK_IDENTITY: 585 return TLS1_AD_UNKNOWN_PSK_IDENTITY; 586 case SSL_AD_INAPPROPRIATE_FALLBACK: 587 return TLS1_AD_INAPPROPRIATE_FALLBACK; 588 case SSL_AD_NO_APPLICATION_PROTOCOL: 589 return TLS1_AD_NO_APPLICATION_PROTOCOL; 590 case SSL_AD_CERTIFICATE_REQUIRED: 591 return SSL_AD_HANDSHAKE_FAILURE; 592 default: 593 return -1; 594 } 595} 596