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