1 /* 2 * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved. 3 * Copyright 2005 Nokia. All rights reserved. 4 * 5 * Licensed under the Apache License 2.0 (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 <openssl/core_names.h> 16 #include "internal/cryptlib.h" 17 ssl3_generate_key_block(SSL * s,unsigned char * km,int num)18 static int ssl3_generate_key_block(SSL *s, unsigned char *km, int num) 19 { 20 const EVP_MD *md5 = NULL, *sha1 = NULL; 21 EVP_MD_CTX *m5; 22 EVP_MD_CTX *s1; 23 unsigned char buf[16], smd[SHA_DIGEST_LENGTH]; 24 unsigned char c = 'A'; 25 unsigned int i, k; 26 int ret = 0; 27 28 #ifdef CHARSET_EBCDIC 29 c = os_toascii[c]; /* 'A' in ASCII */ 30 #endif 31 k = 0; 32 md5 = ssl_evp_md_fetch(s->ctx->libctx, NID_md5, s->ctx->propq); 33 sha1 = ssl_evp_md_fetch(s->ctx->libctx, NID_sha1, s->ctx->propq); 34 m5 = EVP_MD_CTX_new(); 35 s1 = EVP_MD_CTX_new(); 36 if (md5 == NULL || sha1 == NULL || m5 == NULL || s1 == NULL) { 37 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE); 38 goto err; 39 } 40 for (i = 0; (int)i < num; i += MD5_DIGEST_LENGTH) { 41 k++; 42 if (k > sizeof(buf)) { 43 /* bug: 'buf' is too small for this ciphersuite */ 44 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); 45 goto err; 46 } 47 48 memset(buf, c, k); 49 c++; 50 if (!EVP_DigestInit_ex(s1, 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, 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, ERR_R_INTERNAL_ERROR); 62 goto err; 63 } 64 if ((int)(i + MD5_DIGEST_LENGTH) > num) { 65 if (!EVP_DigestFinal_ex(m5, smd, NULL)) { 66 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); 67 goto err; 68 } 69 memcpy(km, smd, (num - i)); 70 } else { 71 if (!EVP_DigestFinal_ex(m5, km, NULL)) { 72 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); 73 goto err; 74 } 75 } 76 77 km += MD5_DIGEST_LENGTH; 78 } 79 OPENSSL_cleanse(smd, sizeof(smd)); 80 ret = 1; 81 err: 82 EVP_MD_CTX_free(m5); 83 EVP_MD_CTX_free(s1); 84 ssl_evp_md_free(md5); 85 ssl_evp_md_free(sha1); 86 return ret; 87 } 88 ssl3_change_cipher_state(SSL * s,int which)89 int ssl3_change_cipher_state(SSL *s, int which) 90 { 91 unsigned char *p, *mac_secret; 92 unsigned char *ms, *key, *iv; 93 EVP_CIPHER_CTX *dd; 94 const EVP_CIPHER *c; 95 #ifndef OPENSSL_NO_COMP 96 COMP_METHOD *comp; 97 #endif 98 const EVP_MD *m; 99 int mdi; 100 size_t n, i, j, k, cl; 101 int reuse_dd = 0; 102 103 c = s->s3.tmp.new_sym_enc; 104 m = s->s3.tmp.new_hash; 105 /* m == NULL will lead to a crash later */ 106 if (!ossl_assert(m != NULL)) { 107 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); 108 goto err; 109 } 110 #ifndef OPENSSL_NO_COMP 111 if (s->s3.tmp.new_compression == NULL) 112 comp = NULL; 113 else 114 comp = s->s3.tmp.new_compression->method; 115 #endif 116 117 if (which & SSL3_CC_READ) { 118 if (s->enc_read_ctx != NULL) { 119 reuse_dd = 1; 120 } else if ((s->enc_read_ctx = EVP_CIPHER_CTX_new()) == NULL) { 121 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE); 122 goto err; 123 } else { 124 /* 125 * make sure it's initialised in case we exit later with an error 126 */ 127 EVP_CIPHER_CTX_reset(s->enc_read_ctx); 128 } 129 dd = s->enc_read_ctx; 130 131 if (ssl_replace_hash(&s->read_hash, m) == NULL) { 132 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); 133 goto err; 134 } 135 #ifndef OPENSSL_NO_COMP 136 /* COMPRESS */ 137 COMP_CTX_free(s->expand); 138 s->expand = NULL; 139 if (comp != NULL) { 140 s->expand = COMP_CTX_new(comp); 141 if (s->expand == NULL) { 142 SSLfatal(s, SSL_AD_INTERNAL_ERROR, 143 SSL_R_COMPRESSION_LIBRARY_ERROR); 144 goto err; 145 } 146 } 147 #endif 148 RECORD_LAYER_reset_read_sequence(&s->rlayer); 149 mac_secret = &(s->s3.read_mac_secret[0]); 150 } else { 151 s->statem.enc_write_state = ENC_WRITE_STATE_INVALID; 152 if (s->enc_write_ctx != NULL) { 153 reuse_dd = 1; 154 } else if ((s->enc_write_ctx = EVP_CIPHER_CTX_new()) == NULL) { 155 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE); 156 goto err; 157 } else { 158 /* 159 * make sure it's initialised in case we exit later with an error 160 */ 161 EVP_CIPHER_CTX_reset(s->enc_write_ctx); 162 } 163 dd = s->enc_write_ctx; 164 if (ssl_replace_hash(&s->write_hash, m) == NULL) { 165 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE); 166 goto err; 167 } 168 #ifndef OPENSSL_NO_COMP 169 /* COMPRESS */ 170 COMP_CTX_free(s->compress); 171 s->compress = NULL; 172 if (comp != NULL) { 173 s->compress = COMP_CTX_new(comp); 174 if (s->compress == NULL) { 175 SSLfatal(s, SSL_AD_INTERNAL_ERROR, 176 SSL_R_COMPRESSION_LIBRARY_ERROR); 177 goto err; 178 } 179 } 180 #endif 181 RECORD_LAYER_reset_write_sequence(&s->rlayer); 182 mac_secret = &(s->s3.write_mac_secret[0]); 183 } 184 185 if (reuse_dd) 186 EVP_CIPHER_CTX_reset(dd); 187 188 p = s->s3.tmp.key_block; 189 mdi = EVP_MD_get_size(m); 190 if (mdi < 0) { 191 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); 192 goto err; 193 } 194 i = mdi; 195 cl = EVP_CIPHER_get_key_length(c); 196 j = cl; 197 k = EVP_CIPHER_get_iv_length(c); 198 if ((which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) || 199 (which == SSL3_CHANGE_CIPHER_SERVER_READ)) { 200 ms = &(p[0]); 201 n = i + i; 202 key = &(p[n]); 203 n += j + j; 204 iv = &(p[n]); 205 n += k + k; 206 } else { 207 n = i; 208 ms = &(p[n]); 209 n += i + j; 210 key = &(p[n]); 211 n += j + k; 212 iv = &(p[n]); 213 n += k; 214 } 215 216 if (n > s->s3.tmp.key_block_length) { 217 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); 218 goto err; 219 } 220 221 memcpy(mac_secret, ms, i); 222 223 if (!EVP_CipherInit_ex(dd, c, NULL, key, iv, (which & SSL3_CC_WRITE))) { 224 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); 225 goto err; 226 } 227 228 /* 229 * The cipher we actually ended up using in the EVP_CIPHER_CTX may be 230 * different to that in c if we have an ENGINE in use 231 */ 232 if (EVP_CIPHER_get0_provider(EVP_CIPHER_CTX_get0_cipher(dd)) != NULL 233 && !tls_provider_set_tls_params(s, dd, c, m)) { 234 /* SSLfatal already called */ 235 goto err; 236 } 237 238 s->statem.enc_write_state = ENC_WRITE_STATE_VALID; 239 return 1; 240 err: 241 return 0; 242 } 243 ssl3_setup_key_block(SSL * s)244 int ssl3_setup_key_block(SSL *s) 245 { 246 unsigned char *p; 247 const EVP_CIPHER *c; 248 const EVP_MD *hash; 249 int num; 250 int ret = 0; 251 SSL_COMP *comp; 252 253 if (s->s3.tmp.key_block_length != 0) 254 return 1; 255 256 if (!ssl_cipher_get_evp(s->ctx, s->session, &c, &hash, NULL, NULL, &comp, 257 0)) { 258 /* Error is already recorded */ 259 SSLfatal_alert(s, SSL_AD_INTERNAL_ERROR); 260 return 0; 261 } 262 263 ssl_evp_cipher_free(s->s3.tmp.new_sym_enc); 264 s->s3.tmp.new_sym_enc = c; 265 ssl_evp_md_free(s->s3.tmp.new_hash); 266 s->s3.tmp.new_hash = hash; 267 #ifdef OPENSSL_NO_COMP 268 s->s3.tmp.new_compression = NULL; 269 #else 270 s->s3.tmp.new_compression = comp; 271 #endif 272 273 num = EVP_MD_get_size(hash); 274 if (num < 0) 275 return 0; 276 277 num = EVP_CIPHER_get_key_length(c) + num + EVP_CIPHER_get_iv_length(c); 278 num *= 2; 279 280 ssl3_cleanup_key_block(s); 281 282 if ((p = OPENSSL_malloc(num)) == NULL) { 283 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE); 284 return 0; 285 } 286 287 s->s3.tmp.key_block_length = num; 288 s->s3.tmp.key_block = p; 289 290 /* Calls SSLfatal() as required */ 291 ret = ssl3_generate_key_block(s, p, num); 292 293 if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS)) { 294 /* 295 * enable vulnerability countermeasure for CBC ciphers with known-IV 296 * problem (http://www.openssl.org/~bodo/tls-cbc.txt) 297 */ 298 s->s3.need_empty_fragments = 1; 299 300 if (s->session->cipher != NULL) { 301 if (s->session->cipher->algorithm_enc == SSL_eNULL) 302 s->s3.need_empty_fragments = 0; 303 304 if (s->session->cipher->algorithm_enc == SSL_RC4) 305 s->s3.need_empty_fragments = 0; 306 } 307 } 308 309 return ret; 310 } 311 ssl3_cleanup_key_block(SSL * s)312 void ssl3_cleanup_key_block(SSL *s) 313 { 314 OPENSSL_clear_free(s->s3.tmp.key_block, s->s3.tmp.key_block_length); 315 s->s3.tmp.key_block = NULL; 316 s->s3.tmp.key_block_length = 0; 317 } 318 ssl3_init_finished_mac(SSL * s)319 int ssl3_init_finished_mac(SSL *s) 320 { 321 BIO *buf = BIO_new(BIO_s_mem()); 322 323 if (buf == NULL) { 324 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE); 325 return 0; 326 } 327 ssl3_free_digest_list(s); 328 s->s3.handshake_buffer = buf; 329 (void)BIO_set_close(s->s3.handshake_buffer, BIO_CLOSE); 330 return 1; 331 } 332 333 /* 334 * Free digest list. Also frees handshake buffer since they are always freed 335 * together. 336 */ 337 ssl3_free_digest_list(SSL * s)338 void ssl3_free_digest_list(SSL *s) 339 { 340 BIO_free(s->s3.handshake_buffer); 341 s->s3.handshake_buffer = NULL; 342 EVP_MD_CTX_free(s->s3.handshake_dgst); 343 s->s3.handshake_dgst = NULL; 344 } 345 ssl3_finish_mac(SSL * s,const unsigned char * buf,size_t len)346 int ssl3_finish_mac(SSL *s, const unsigned char *buf, size_t len) 347 { 348 int ret; 349 350 if (s->s3.handshake_dgst == NULL) { 351 /* Note: this writes to a memory BIO so a failure is a fatal error */ 352 if (len > INT_MAX) { 353 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_R_OVERFLOW_ERROR); 354 return 0; 355 } 356 ret = BIO_write(s->s3.handshake_buffer, (void *)buf, (int)len); 357 if (ret <= 0 || ret != (int)len) { 358 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); 359 return 0; 360 } 361 } else { 362 ret = EVP_DigestUpdate(s->s3.handshake_dgst, buf, len); 363 if (!ret) { 364 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); 365 return 0; 366 } 367 } 368 return 1; 369 } 370 ssl3_digest_cached_records(SSL * s,int keep)371 int ssl3_digest_cached_records(SSL *s, int keep) 372 { 373 const EVP_MD *md; 374 long hdatalen; 375 void *hdata; 376 377 if (s->s3.handshake_dgst == NULL) { 378 hdatalen = BIO_get_mem_data(s->s3.handshake_buffer, &hdata); 379 if (hdatalen <= 0) { 380 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_R_BAD_HANDSHAKE_LENGTH); 381 return 0; 382 } 383 384 s->s3.handshake_dgst = EVP_MD_CTX_new(); 385 if (s->s3.handshake_dgst == NULL) { 386 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE); 387 return 0; 388 } 389 390 md = ssl_handshake_md(s); 391 if (md == NULL) { 392 SSLfatal(s, SSL_AD_INTERNAL_ERROR, 393 SSL_R_NO_SUITABLE_DIGEST_ALGORITHM); 394 return 0; 395 } 396 if (!EVP_DigestInit_ex(s->s3.handshake_dgst, md, NULL) 397 || !EVP_DigestUpdate(s->s3.handshake_dgst, hdata, hdatalen)) { 398 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); 399 return 0; 400 } 401 } 402 if (keep == 0) { 403 BIO_free(s->s3.handshake_buffer); 404 s->s3.handshake_buffer = NULL; 405 } 406 407 return 1; 408 } 409 ssl3_digest_master_key_set_params(const SSL_SESSION * session,OSSL_PARAM params[])410 void ssl3_digest_master_key_set_params(const SSL_SESSION *session, 411 OSSL_PARAM params[]) 412 { 413 int n = 0; 414 params[n++] = OSSL_PARAM_construct_octet_string(OSSL_DIGEST_PARAM_SSL3_MS, 415 (void *)session->master_key, 416 session->master_key_length); 417 params[n++] = OSSL_PARAM_construct_end(); 418 } 419 ssl3_final_finish_mac(SSL * s,const char * sender,size_t len,unsigned char * p)420 size_t ssl3_final_finish_mac(SSL *s, const char *sender, size_t len, 421 unsigned char *p) 422 { 423 int ret; 424 EVP_MD_CTX *ctx = NULL; 425 426 if (!ssl3_digest_cached_records(s, 0)) { 427 /* SSLfatal() already called */ 428 return 0; 429 } 430 431 if (EVP_MD_CTX_get_type(s->s3.handshake_dgst) != NID_md5_sha1) { 432 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_R_NO_REQUIRED_DIGEST); 433 return 0; 434 } 435 436 ctx = EVP_MD_CTX_new(); 437 if (ctx == NULL) { 438 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE); 439 return 0; 440 } 441 if (!EVP_MD_CTX_copy_ex(ctx, s->s3.handshake_dgst)) { 442 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); 443 ret = 0; 444 goto err; 445 } 446 447 ret = EVP_MD_CTX_get_size(ctx); 448 if (ret < 0) { 449 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); 450 ret = 0; 451 goto err; 452 } 453 454 if (sender != NULL) { 455 OSSL_PARAM digest_cmd_params[3]; 456 457 ssl3_digest_master_key_set_params(s->session, digest_cmd_params); 458 459 if (EVP_DigestUpdate(ctx, sender, len) <= 0 460 || EVP_MD_CTX_set_params(ctx, digest_cmd_params) <= 0 461 || EVP_DigestFinal_ex(ctx, p, NULL) <= 0) { 462 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); 463 ret = 0; 464 } 465 } 466 467 err: 468 EVP_MD_CTX_free(ctx); 469 470 return ret; 471 } 472 ssl3_generate_master_secret(SSL * s,unsigned char * out,unsigned char * p,size_t len,size_t * secret_size)473 int ssl3_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p, 474 size_t len, size_t *secret_size) 475 { 476 static const unsigned char *salt[3] = { 477 #ifndef CHARSET_EBCDIC 478 (const unsigned char *)"A", 479 (const unsigned char *)"BB", 480 (const unsigned char *)"CCC", 481 #else 482 (const unsigned char *)"\x41", 483 (const unsigned char *)"\x42\x42", 484 (const unsigned char *)"\x43\x43\x43", 485 #endif 486 }; 487 unsigned char buf[EVP_MAX_MD_SIZE]; 488 EVP_MD_CTX *ctx = EVP_MD_CTX_new(); 489 int i, ret = 1; 490 unsigned int n; 491 size_t ret_secret_size = 0; 492 493 if (ctx == NULL) { 494 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE); 495 return 0; 496 } 497 for (i = 0; i < 3; i++) { 498 if (EVP_DigestInit_ex(ctx, s->ctx->sha1, NULL) <= 0 499 || EVP_DigestUpdate(ctx, salt[i], 500 strlen((const char *)salt[i])) <= 0 501 || EVP_DigestUpdate(ctx, p, len) <= 0 502 || EVP_DigestUpdate(ctx, &(s->s3.client_random[0]), 503 SSL3_RANDOM_SIZE) <= 0 504 || EVP_DigestUpdate(ctx, &(s->s3.server_random[0]), 505 SSL3_RANDOM_SIZE) <= 0 506 || EVP_DigestFinal_ex(ctx, buf, &n) <= 0 507 || EVP_DigestInit_ex(ctx, s->ctx->md5, NULL) <= 0 508 || EVP_DigestUpdate(ctx, p, len) <= 0 509 || EVP_DigestUpdate(ctx, buf, n) <= 0 510 || EVP_DigestFinal_ex(ctx, out, &n) <= 0) { 511 SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR); 512 ret = 0; 513 break; 514 } 515 out += n; 516 ret_secret_size += n; 517 } 518 EVP_MD_CTX_free(ctx); 519 520 OPENSSL_cleanse(buf, sizeof(buf)); 521 if (ret) 522 *secret_size = ret_secret_size; 523 return ret; 524 } 525 ssl3_alert_code(int code)526 int ssl3_alert_code(int code) 527 { 528 switch (code) { 529 case SSL_AD_CLOSE_NOTIFY: 530 return SSL3_AD_CLOSE_NOTIFY; 531 case SSL_AD_UNEXPECTED_MESSAGE: 532 return SSL3_AD_UNEXPECTED_MESSAGE; 533 case SSL_AD_BAD_RECORD_MAC: 534 return SSL3_AD_BAD_RECORD_MAC; 535 case SSL_AD_DECRYPTION_FAILED: 536 return SSL3_AD_BAD_RECORD_MAC; 537 case SSL_AD_RECORD_OVERFLOW: 538 return SSL3_AD_BAD_RECORD_MAC; 539 case SSL_AD_DECOMPRESSION_FAILURE: 540 return SSL3_AD_DECOMPRESSION_FAILURE; 541 case SSL_AD_HANDSHAKE_FAILURE: 542 return SSL3_AD_HANDSHAKE_FAILURE; 543 case SSL_AD_NO_CERTIFICATE: 544 return SSL3_AD_NO_CERTIFICATE; 545 case SSL_AD_BAD_CERTIFICATE: 546 return SSL3_AD_BAD_CERTIFICATE; 547 case SSL_AD_UNSUPPORTED_CERTIFICATE: 548 return SSL3_AD_UNSUPPORTED_CERTIFICATE; 549 case SSL_AD_CERTIFICATE_REVOKED: 550 return SSL3_AD_CERTIFICATE_REVOKED; 551 case SSL_AD_CERTIFICATE_EXPIRED: 552 return SSL3_AD_CERTIFICATE_EXPIRED; 553 case SSL_AD_CERTIFICATE_UNKNOWN: 554 return SSL3_AD_CERTIFICATE_UNKNOWN; 555 case SSL_AD_ILLEGAL_PARAMETER: 556 return SSL3_AD_ILLEGAL_PARAMETER; 557 case SSL_AD_UNKNOWN_CA: 558 return SSL3_AD_BAD_CERTIFICATE; 559 case SSL_AD_ACCESS_DENIED: 560 return SSL3_AD_HANDSHAKE_FAILURE; 561 case SSL_AD_DECODE_ERROR: 562 return SSL3_AD_HANDSHAKE_FAILURE; 563 case SSL_AD_DECRYPT_ERROR: 564 return SSL3_AD_HANDSHAKE_FAILURE; 565 case SSL_AD_EXPORT_RESTRICTION: 566 return SSL3_AD_HANDSHAKE_FAILURE; 567 case SSL_AD_PROTOCOL_VERSION: 568 return SSL3_AD_HANDSHAKE_FAILURE; 569 case SSL_AD_INSUFFICIENT_SECURITY: 570 return SSL3_AD_HANDSHAKE_FAILURE; 571 case SSL_AD_INTERNAL_ERROR: 572 return SSL3_AD_HANDSHAKE_FAILURE; 573 case SSL_AD_USER_CANCELLED: 574 return SSL3_AD_HANDSHAKE_FAILURE; 575 case SSL_AD_NO_RENEGOTIATION: 576 return -1; /* Don't send it :-) */ 577 case SSL_AD_UNSUPPORTED_EXTENSION: 578 return SSL3_AD_HANDSHAKE_FAILURE; 579 case SSL_AD_CERTIFICATE_UNOBTAINABLE: 580 return SSL3_AD_HANDSHAKE_FAILURE; 581 case SSL_AD_UNRECOGNIZED_NAME: 582 return SSL3_AD_HANDSHAKE_FAILURE; 583 case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE: 584 return SSL3_AD_HANDSHAKE_FAILURE; 585 case SSL_AD_BAD_CERTIFICATE_HASH_VALUE: 586 return SSL3_AD_HANDSHAKE_FAILURE; 587 case SSL_AD_UNKNOWN_PSK_IDENTITY: 588 return TLS1_AD_UNKNOWN_PSK_IDENTITY; 589 case SSL_AD_INAPPROPRIATE_FALLBACK: 590 return TLS1_AD_INAPPROPRIATE_FALLBACK; 591 case SSL_AD_NO_APPLICATION_PROTOCOL: 592 return TLS1_AD_NO_APPLICATION_PROTOCOL; 593 case SSL_AD_CERTIFICATE_REQUIRED: 594 return SSL_AD_HANDSHAKE_FAILURE; 595 case TLS13_AD_MISSING_EXTENSION: 596 return SSL_AD_HANDSHAKE_FAILURE; 597 default: 598 return -1; 599 } 600 } 601