2 * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright 2005 Nokia. All rights reserved.
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
12 #include "ssl_local.h"
13 #include "record/record_local.h"
14 #include "internal/ktls.h"
15 #include "internal/cryptlib.h"
16 #include <openssl/comp.h>
17 #include <openssl/evp.h>
18 #include <openssl/kdf.h>
19 #include <openssl/rand.h>
20 #include <openssl/obj_mac.h>
22 /* seed1 through seed5 are concatenated */
23 static int tls1_PRF(SSL *s,
24 const void *seed1, size_t seed1_len,
25 const void *seed2, size_t seed2_len,
26 const void *seed3, size_t seed3_len,
27 const void *seed4, size_t seed4_len,
28 const void *seed5, size_t seed5_len,
29 const unsigned char *sec, size_t slen,
30 unsigned char *out, size_t olen, int fatal)
32 const EVP_MD *md = ssl_prf_md(s);
33 EVP_PKEY_CTX *pctx = NULL;
37 /* Should never happen */
39 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_PRF,
40 ERR_R_INTERNAL_ERROR);
42 SSLerr(SSL_F_TLS1_PRF, ERR_R_INTERNAL_ERROR);
45 pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_TLS1_PRF, NULL);
46 if (pctx == NULL || EVP_PKEY_derive_init(pctx) <= 0
47 || EVP_PKEY_CTX_set_tls1_prf_md(pctx, md) <= 0
48 || EVP_PKEY_CTX_set1_tls1_prf_secret(pctx, sec, (int)slen) <= 0
49 || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed1, (int)seed1_len) <= 0
50 || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed2, (int)seed2_len) <= 0
51 || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed3, (int)seed3_len) <= 0
52 || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed4, (int)seed4_len) <= 0
53 || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed5, (int)seed5_len) <= 0
54 || EVP_PKEY_derive(pctx, out, &olen) <= 0) {
56 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_PRF,
57 ERR_R_INTERNAL_ERROR);
59 SSLerr(SSL_F_TLS1_PRF, ERR_R_INTERNAL_ERROR);
66 EVP_PKEY_CTX_free(pctx);
70 static int tls1_generate_key_block(SSL *s, unsigned char *km, size_t num)
74 /* Calls SSLfatal() as required */
76 TLS_MD_KEY_EXPANSION_CONST,
77 TLS_MD_KEY_EXPANSION_CONST_SIZE, s->s3->server_random,
78 SSL3_RANDOM_SIZE, s->s3->client_random, SSL3_RANDOM_SIZE,
79 NULL, 0, NULL, 0, s->session->master_key,
80 s->session->master_key_length, km, num, 1);
85 int tls1_change_cipher_state(SSL *s, int which)
87 unsigned char *p, *mac_secret;
88 unsigned char *ms, *key, *iv;
91 #ifndef OPENSSL_NO_COMP
96 size_t *mac_secret_size;
99 size_t n, i, j, k, cl;
101 #ifndef OPENSSL_NO_KTLS
102 ktls_crypto_info_t crypto_info;
107 c = s->s3->tmp.new_sym_enc;
108 m = s->s3->tmp.new_hash;
109 mac_type = s->s3->tmp.new_mac_pkey_type;
110 #ifndef OPENSSL_NO_COMP
111 comp = s->s3->tmp.new_compression;
114 if (which & SSL3_CC_READ) {
116 s->s3->flags |= TLS1_FLAGS_ENCRYPT_THEN_MAC_READ;
118 s->s3->flags &= ~TLS1_FLAGS_ENCRYPT_THEN_MAC_READ;
120 if (s->s3->tmp.new_cipher->algorithm2 & TLS1_STREAM_MAC)
121 s->mac_flags |= SSL_MAC_FLAG_READ_MAC_STREAM;
123 s->mac_flags &= ~SSL_MAC_FLAG_READ_MAC_STREAM;
125 if (s->enc_read_ctx != NULL) {
127 } else if ((s->enc_read_ctx = EVP_CIPHER_CTX_new()) == NULL) {
128 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
129 ERR_R_MALLOC_FAILURE);
133 * make sure it's initialised in case we exit later with an error
135 EVP_CIPHER_CTX_reset(s->enc_read_ctx);
137 dd = s->enc_read_ctx;
138 mac_ctx = ssl_replace_hash(&s->read_hash, NULL);
141 #ifndef OPENSSL_NO_COMP
142 COMP_CTX_free(s->expand);
145 s->expand = COMP_CTX_new(comp->method);
146 if (s->expand == NULL) {
147 SSLfatal(s, SSL_AD_INTERNAL_ERROR,
148 SSL_F_TLS1_CHANGE_CIPHER_STATE,
149 SSL_R_COMPRESSION_LIBRARY_ERROR);
155 * this is done by dtls1_reset_seq_numbers for DTLS
158 RECORD_LAYER_reset_read_sequence(&s->rlayer);
159 mac_secret = &(s->s3->read_mac_secret[0]);
160 mac_secret_size = &(s->s3->read_mac_secret_size);
162 s->statem.enc_write_state = ENC_WRITE_STATE_INVALID;
164 s->s3->flags |= TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE;
166 s->s3->flags &= ~TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE;
168 if (s->s3->tmp.new_cipher->algorithm2 & TLS1_STREAM_MAC)
169 s->mac_flags |= SSL_MAC_FLAG_WRITE_MAC_STREAM;
171 s->mac_flags &= ~SSL_MAC_FLAG_WRITE_MAC_STREAM;
172 if (s->enc_write_ctx != NULL && !SSL_IS_DTLS(s)) {
174 } else if ((s->enc_write_ctx = EVP_CIPHER_CTX_new()) == NULL) {
175 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
176 ERR_R_MALLOC_FAILURE);
179 dd = s->enc_write_ctx;
180 if (SSL_IS_DTLS(s)) {
181 mac_ctx = EVP_MD_CTX_new();
182 if (mac_ctx == NULL) {
183 SSLfatal(s, SSL_AD_INTERNAL_ERROR,
184 SSL_F_TLS1_CHANGE_CIPHER_STATE,
185 ERR_R_MALLOC_FAILURE);
188 s->write_hash = mac_ctx;
190 mac_ctx = ssl_replace_hash(&s->write_hash, NULL);
191 if (mac_ctx == NULL) {
192 SSLfatal(s, SSL_AD_INTERNAL_ERROR,
193 SSL_F_TLS1_CHANGE_CIPHER_STATE,
194 ERR_R_MALLOC_FAILURE);
198 #ifndef OPENSSL_NO_COMP
199 COMP_CTX_free(s->compress);
202 s->compress = COMP_CTX_new(comp->method);
203 if (s->compress == NULL) {
204 SSLfatal(s, SSL_AD_INTERNAL_ERROR,
205 SSL_F_TLS1_CHANGE_CIPHER_STATE,
206 SSL_R_COMPRESSION_LIBRARY_ERROR);
212 * this is done by dtls1_reset_seq_numbers for DTLS
215 RECORD_LAYER_reset_write_sequence(&s->rlayer);
216 mac_secret = &(s->s3->write_mac_secret[0]);
217 mac_secret_size = &(s->s3->write_mac_secret_size);
221 EVP_CIPHER_CTX_reset(dd);
223 p = s->s3->tmp.key_block;
224 i = *mac_secret_size = s->s3->tmp.new_mac_secret_size;
226 /* TODO(size_t): convert me */
227 cl = EVP_CIPHER_key_length(c);
229 /* Was j=(exp)?5:EVP_CIPHER_key_length(c); */
230 /* If GCM/CCM mode only part of IV comes from PRF */
231 if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE)
232 k = EVP_GCM_TLS_FIXED_IV_LEN;
233 else if (EVP_CIPHER_mode(c) == EVP_CIPH_CCM_MODE)
234 k = EVP_CCM_TLS_FIXED_IV_LEN;
236 k = EVP_CIPHER_iv_length(c);
237 if ((which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) ||
238 (which == SSL3_CHANGE_CIPHER_SERVER_READ)) {
255 if (n > s->s3->tmp.key_block_length) {
256 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
257 ERR_R_INTERNAL_ERROR);
261 memcpy(mac_secret, ms, i);
263 if (!(EVP_CIPHER_flags(c) & EVP_CIPH_FLAG_AEAD_CIPHER)) {
264 /* TODO(size_t): Convert this function */
265 mac_key = EVP_PKEY_new_mac_key(mac_type, NULL, mac_secret,
266 (int)*mac_secret_size);
268 || EVP_DigestSignInit(mac_ctx, NULL, m, NULL, mac_key) <= 0) {
269 EVP_PKEY_free(mac_key);
270 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
271 ERR_R_INTERNAL_ERROR);
274 EVP_PKEY_free(mac_key);
277 printf("which = %04X\nmac key=", which);
280 for (z = 0; z < i; z++)
281 printf("%02X%c", ms[z], ((z + 1) % 16) ? ' ' : '\n');
285 if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE) {
286 if (!EVP_CipherInit_ex(dd, c, NULL, key, NULL, (which & SSL3_CC_WRITE))
287 || !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_GCM_SET_IV_FIXED, (int)k,
289 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
290 ERR_R_INTERNAL_ERROR);
293 } else if (EVP_CIPHER_mode(c) == EVP_CIPH_CCM_MODE) {
296 new_cipher->algorithm_enc & (SSL_AES128CCM8 | SSL_AES256CCM8))
297 taglen = EVP_CCM8_TLS_TAG_LEN;
299 taglen = EVP_CCM_TLS_TAG_LEN;
300 if (!EVP_CipherInit_ex(dd, c, NULL, NULL, NULL, (which & SSL3_CC_WRITE))
301 || !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_AEAD_SET_IVLEN, 12, NULL)
302 || !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_AEAD_SET_TAG, taglen, NULL)
303 || !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_CCM_SET_IV_FIXED, (int)k, iv)
304 || !EVP_CipherInit_ex(dd, NULL, NULL, key, NULL, -1)) {
305 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
306 ERR_R_INTERNAL_ERROR);
310 if (!EVP_CipherInit_ex(dd, c, NULL, key, iv, (which & SSL3_CC_WRITE))) {
311 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
312 ERR_R_INTERNAL_ERROR);
316 /* Needed for "composite" AEADs, such as RC4-HMAC-MD5 */
317 if ((EVP_CIPHER_flags(c) & EVP_CIPH_FLAG_AEAD_CIPHER) && *mac_secret_size
318 && !EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_AEAD_SET_MAC_KEY,
319 (int)*mac_secret_size, mac_secret)) {
320 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
321 ERR_R_INTERNAL_ERROR);
324 #ifndef OPENSSL_NO_KTLS
325 if (s->compress || (s->options & SSL_OP_ENABLE_KTLS) == 0)
328 /* ktls supports only the maximum fragment size */
329 if (ssl_get_max_send_fragment(s) != SSL3_RT_MAX_PLAIN_LENGTH)
332 /* check that cipher is supported */
333 if (!ktls_check_supported_cipher(s, c, dd))
336 if (which & SSL3_CC_WRITE)
341 if (!ossl_assert(bio != NULL)) {
342 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
343 ERR_R_INTERNAL_ERROR);
347 /* All future data will get encrypted by ktls. Flush the BIO or skip ktls */
348 if (which & SSL3_CC_WRITE) {
349 if (BIO_flush(bio) <= 0)
353 /* ktls doesn't support renegotiation */
354 if ((BIO_get_ktls_send(s->wbio) && (which & SSL3_CC_WRITE)) ||
355 (BIO_get_ktls_recv(s->rbio) && (which & SSL3_CC_READ))) {
356 SSLfatal(s, SSL_AD_NO_RENEGOTIATION, SSL_F_TLS1_CHANGE_CIPHER_STATE,
357 ERR_R_INTERNAL_ERROR);
361 if (which & SSL3_CC_WRITE)
362 rl_sequence = RECORD_LAYER_get_write_sequence(&s->rlayer);
364 rl_sequence = RECORD_LAYER_get_read_sequence(&s->rlayer);
366 if (!ktls_configure_crypto(s, c, dd, rl_sequence, &crypto_info,
367 which & SSL3_CC_WRITE, iv, key, ms,
371 /* ktls works with user provided buffers directly */
372 if (BIO_set_ktls(bio, &crypto_info, which & SSL3_CC_WRITE)) {
373 if (which & SSL3_CC_WRITE)
374 ssl3_release_write_buffer(s);
375 SSL_set_options(s, SSL_OP_NO_RENEGOTIATION);
379 #endif /* OPENSSL_NO_KTLS */
380 s->statem.enc_write_state = ENC_WRITE_STATE_VALID;
383 printf("which = %04X\nkey=", which);
386 for (z = 0; z < EVP_CIPHER_key_length(c); z++)
387 printf("%02X%c", key[z], ((z + 1) % 16) ? ' ' : '\n');
392 for (z = 0; z < k; z++)
393 printf("%02X%c", iv[z], ((z + 1) % 16) ? ' ' : '\n');
403 int tls1_setup_key_block(SSL *s)
409 int mac_type = NID_undef;
410 size_t num, mac_secret_size = 0;
413 if (s->s3->tmp.key_block_length != 0)
416 if (!ssl_cipher_get_evp(s->session, &c, &hash, &mac_type, &mac_secret_size,
417 &comp, s->ext.use_etm)) {
418 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_SETUP_KEY_BLOCK,
419 SSL_R_CIPHER_OR_HASH_UNAVAILABLE);
423 s->s3->tmp.new_sym_enc = c;
424 s->s3->tmp.new_hash = hash;
425 s->s3->tmp.new_mac_pkey_type = mac_type;
426 s->s3->tmp.new_mac_secret_size = mac_secret_size;
427 num = EVP_CIPHER_key_length(c) + mac_secret_size + EVP_CIPHER_iv_length(c);
430 ssl3_cleanup_key_block(s);
432 if ((p = OPENSSL_malloc(num)) == NULL) {
433 SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_SETUP_KEY_BLOCK,
434 ERR_R_MALLOC_FAILURE);
438 s->s3->tmp.key_block_length = num;
439 s->s3->tmp.key_block = p;
442 printf("client random\n");
445 for (z = 0; z < SSL3_RANDOM_SIZE; z++)
446 printf("%02X%c", s->s3->client_random[z],
447 ((z + 1) % 16) ? ' ' : '\n');
449 printf("server random\n");
452 for (z = 0; z < SSL3_RANDOM_SIZE; z++)
453 printf("%02X%c", s->s3->server_random[z],
454 ((z + 1) % 16) ? ' ' : '\n');
456 printf("master key\n");
459 for (z = 0; z < s->session->master_key_length; z++)
460 printf("%02X%c", s->session->master_key[z],
461 ((z + 1) % 16) ? ' ' : '\n');
464 if (!tls1_generate_key_block(s, p, num)) {
465 /* SSLfatal() already called */
469 printf("\nkey block\n");
472 for (z = 0; z < num; z++)
473 printf("%02X%c", p[z], ((z + 1) % 16) ? ' ' : '\n');
477 if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS)
478 && s->method->version <= TLS1_VERSION) {
480 * enable vulnerability countermeasure for CBC ciphers with known-IV
481 * problem (http://www.openssl.org/~bodo/tls-cbc.txt)
483 s->s3->need_empty_fragments = 1;
485 if (s->session->cipher != NULL) {
486 if (s->session->cipher->algorithm_enc == SSL_eNULL)
487 s->s3->need_empty_fragments = 0;
489 #ifndef OPENSSL_NO_RC4
490 if (s->session->cipher->algorithm_enc == SSL_RC4)
491 s->s3->need_empty_fragments = 0;
501 size_t tls1_final_finish_mac(SSL *s, const char *str, size_t slen,
505 unsigned char hash[EVP_MAX_MD_SIZE];
507 if (!ssl3_digest_cached_records(s, 0)) {
508 /* SSLfatal() already called */
512 if (!ssl_handshake_hash(s, hash, sizeof(hash), &hashlen)) {
513 /* SSLfatal() already called */
517 if (!tls1_PRF(s, str, slen, hash, hashlen, NULL, 0, NULL, 0, NULL, 0,
518 s->session->master_key, s->session->master_key_length,
519 out, TLS1_FINISH_MAC_LENGTH, 1)) {
520 /* SSLfatal() already called */
523 OPENSSL_cleanse(hash, hashlen);
524 return TLS1_FINISH_MAC_LENGTH;
527 int tls1_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p,
528 size_t len, size_t *secret_size)
530 if (s->session->flags & SSL_SESS_FLAG_EXTMS) {
531 unsigned char hash[EVP_MAX_MD_SIZE * 2];
534 * Digest cached records keeping record buffer (if present): this won't
535 * affect client auth because we're freezing the buffer at the same
536 * point (after client key exchange and before certificate verify)
538 if (!ssl3_digest_cached_records(s, 1)
539 || !ssl_handshake_hash(s, hash, sizeof(hash), &hashlen)) {
540 /* SSLfatal() already called */
544 fprintf(stderr, "Handshake hashes:\n");
545 BIO_dump_fp(stderr, (char *)hash, hashlen);
548 TLS_MD_EXTENDED_MASTER_SECRET_CONST,
549 TLS_MD_EXTENDED_MASTER_SECRET_CONST_SIZE,
553 NULL, 0, p, len, out,
554 SSL3_MASTER_SECRET_SIZE, 1)) {
555 /* SSLfatal() already called */
558 OPENSSL_cleanse(hash, hashlen);
561 TLS_MD_MASTER_SECRET_CONST,
562 TLS_MD_MASTER_SECRET_CONST_SIZE,
563 s->s3->client_random, SSL3_RANDOM_SIZE,
565 s->s3->server_random, SSL3_RANDOM_SIZE,
566 NULL, 0, p, len, out,
567 SSL3_MASTER_SECRET_SIZE, 1)) {
568 /* SSLfatal() already called */
573 fprintf(stderr, "Premaster Secret:\n");
574 BIO_dump_fp(stderr, (char *)p, len);
575 fprintf(stderr, "Client Random:\n");
576 BIO_dump_fp(stderr, (char *)s->s3->client_random, SSL3_RANDOM_SIZE);
577 fprintf(stderr, "Server Random:\n");
578 BIO_dump_fp(stderr, (char *)s->s3->server_random, SSL3_RANDOM_SIZE);
579 fprintf(stderr, "Master Secret:\n");
580 BIO_dump_fp(stderr, (char *)s->session->master_key,
581 SSL3_MASTER_SECRET_SIZE);
584 *secret_size = SSL3_MASTER_SECRET_SIZE;
588 int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen,
589 const char *label, size_t llen,
590 const unsigned char *context,
591 size_t contextlen, int use_context)
593 unsigned char *val = NULL;
594 size_t vallen = 0, currentvalpos;
598 * construct PRF arguments we construct the PRF argument ourself rather
599 * than passing separate values into the TLS PRF to ensure that the
600 * concatenation of values does not create a prohibited label.
602 vallen = llen + SSL3_RANDOM_SIZE * 2;
604 vallen += 2 + contextlen;
607 val = OPENSSL_malloc(vallen);
611 memcpy(val + currentvalpos, (unsigned char *)label, llen);
612 currentvalpos += llen;
613 memcpy(val + currentvalpos, s->s3->client_random, SSL3_RANDOM_SIZE);
614 currentvalpos += SSL3_RANDOM_SIZE;
615 memcpy(val + currentvalpos, s->s3->server_random, SSL3_RANDOM_SIZE);
616 currentvalpos += SSL3_RANDOM_SIZE;
619 val[currentvalpos] = (contextlen >> 8) & 0xff;
621 val[currentvalpos] = contextlen & 0xff;
623 if ((contextlen > 0) || (context != NULL)) {
624 memcpy(val + currentvalpos, context, contextlen);
629 * disallow prohibited labels note that SSL3_RANDOM_SIZE > max(prohibited
630 * label len) = 15, so size of val > max(prohibited label len) = 15 and
631 * the comparisons won't have buffer overflow
633 if (memcmp(val, TLS_MD_CLIENT_FINISH_CONST,
634 TLS_MD_CLIENT_FINISH_CONST_SIZE) == 0)
636 if (memcmp(val, TLS_MD_SERVER_FINISH_CONST,
637 TLS_MD_SERVER_FINISH_CONST_SIZE) == 0)
639 if (memcmp(val, TLS_MD_MASTER_SECRET_CONST,
640 TLS_MD_MASTER_SECRET_CONST_SIZE) == 0)
642 if (memcmp(val, TLS_MD_EXTENDED_MASTER_SECRET_CONST,
643 TLS_MD_EXTENDED_MASTER_SECRET_CONST_SIZE) == 0)
645 if (memcmp(val, TLS_MD_KEY_EXPANSION_CONST,
646 TLS_MD_KEY_EXPANSION_CONST_SIZE) == 0)
655 s->session->master_key, s->session->master_key_length,
660 SSLerr(SSL_F_TLS1_EXPORT_KEYING_MATERIAL, SSL_R_TLS_ILLEGAL_EXPORTER_LABEL);
664 SSLerr(SSL_F_TLS1_EXPORT_KEYING_MATERIAL, ERR_R_MALLOC_FAILURE);
667 OPENSSL_clear_free(val, vallen);
671 int tls1_alert_code(int code)
674 case SSL_AD_CLOSE_NOTIFY:
675 return SSL3_AD_CLOSE_NOTIFY;
676 case SSL_AD_UNEXPECTED_MESSAGE:
677 return SSL3_AD_UNEXPECTED_MESSAGE;
678 case SSL_AD_BAD_RECORD_MAC:
679 return SSL3_AD_BAD_RECORD_MAC;
680 case SSL_AD_DECRYPTION_FAILED:
681 return TLS1_AD_DECRYPTION_FAILED;
682 case SSL_AD_RECORD_OVERFLOW:
683 return TLS1_AD_RECORD_OVERFLOW;
684 case SSL_AD_DECOMPRESSION_FAILURE:
685 return SSL3_AD_DECOMPRESSION_FAILURE;
686 case SSL_AD_HANDSHAKE_FAILURE:
687 return SSL3_AD_HANDSHAKE_FAILURE;
688 case SSL_AD_NO_CERTIFICATE:
690 case SSL_AD_BAD_CERTIFICATE:
691 return SSL3_AD_BAD_CERTIFICATE;
692 case SSL_AD_UNSUPPORTED_CERTIFICATE:
693 return SSL3_AD_UNSUPPORTED_CERTIFICATE;
694 case SSL_AD_CERTIFICATE_REVOKED:
695 return SSL3_AD_CERTIFICATE_REVOKED;
696 case SSL_AD_CERTIFICATE_EXPIRED:
697 return SSL3_AD_CERTIFICATE_EXPIRED;
698 case SSL_AD_CERTIFICATE_UNKNOWN:
699 return SSL3_AD_CERTIFICATE_UNKNOWN;
700 case SSL_AD_ILLEGAL_PARAMETER:
701 return SSL3_AD_ILLEGAL_PARAMETER;
702 case SSL_AD_UNKNOWN_CA:
703 return TLS1_AD_UNKNOWN_CA;
704 case SSL_AD_ACCESS_DENIED:
705 return TLS1_AD_ACCESS_DENIED;
706 case SSL_AD_DECODE_ERROR:
707 return TLS1_AD_DECODE_ERROR;
708 case SSL_AD_DECRYPT_ERROR:
709 return TLS1_AD_DECRYPT_ERROR;
710 case SSL_AD_EXPORT_RESTRICTION:
711 return TLS1_AD_EXPORT_RESTRICTION;
712 case SSL_AD_PROTOCOL_VERSION:
713 return TLS1_AD_PROTOCOL_VERSION;
714 case SSL_AD_INSUFFICIENT_SECURITY:
715 return TLS1_AD_INSUFFICIENT_SECURITY;
716 case SSL_AD_INTERNAL_ERROR:
717 return TLS1_AD_INTERNAL_ERROR;
718 case SSL_AD_USER_CANCELLED:
719 return TLS1_AD_USER_CANCELLED;
720 case SSL_AD_NO_RENEGOTIATION:
721 return TLS1_AD_NO_RENEGOTIATION;
722 case SSL_AD_UNSUPPORTED_EXTENSION:
723 return TLS1_AD_UNSUPPORTED_EXTENSION;
724 case SSL_AD_CERTIFICATE_UNOBTAINABLE:
725 return TLS1_AD_CERTIFICATE_UNOBTAINABLE;
726 case SSL_AD_UNRECOGNIZED_NAME:
727 return TLS1_AD_UNRECOGNIZED_NAME;
728 case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE:
729 return TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE;
730 case SSL_AD_BAD_CERTIFICATE_HASH_VALUE:
731 return TLS1_AD_BAD_CERTIFICATE_HASH_VALUE;
732 case SSL_AD_UNKNOWN_PSK_IDENTITY:
733 return TLS1_AD_UNKNOWN_PSK_IDENTITY;
734 case SSL_AD_INAPPROPRIATE_FALLBACK:
735 return TLS1_AD_INAPPROPRIATE_FALLBACK;
736 case SSL_AD_NO_APPLICATION_PROTOCOL:
737 return TLS1_AD_NO_APPLICATION_PROTOCOL;
738 case SSL_AD_CERTIFICATE_REQUIRED:
739 return SSL_AD_HANDSHAKE_FAILURE;
740 case SSL_AD_MISSING_EXTENSION:
741 return SSL_AD_HANDSHAKE_FAILURE;