1 /* ssl/statem/statem_lib.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
58 /* ====================================================================
59 * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
73 * 3. All advertising materials mentioning features or use of this
74 * software must display the following acknowledgment:
75 * "This product includes software developed by the OpenSSL Project
76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 * endorse or promote products derived from this software without
80 * prior written permission. For written permission, please contact
81 * openssl-core@openssl.org.
83 * 5. Products derived from this software may not be called "OpenSSL"
84 * nor may "OpenSSL" appear in their names without prior written
85 * permission of the OpenSSL Project.
87 * 6. Redistributions of any form whatsoever must retain the following
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com). This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
111 /* ====================================================================
112 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
113 * ECC cipher suite support in OpenSSL originally developed by
114 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
120 #include "../ssl_locl.h"
121 #include "statem_locl.h"
122 #include <openssl/buffer.h>
123 #include <openssl/rand.h>
124 #include <openssl/objects.h>
125 #include <openssl/evp.h>
126 #include <openssl/x509.h>
129 * send s->init_buf in records of type 'type' (SSL3_RT_HANDSHAKE or
130 * SSL3_RT_CHANGE_CIPHER_SPEC)
132 int ssl3_do_write(SSL *s, int type)
136 ret = ssl3_write_bytes(s, type, &s->init_buf->data[s->init_off],
140 if (type == SSL3_RT_HANDSHAKE)
142 * should not be done for 'Hello Request's, but in that case we'll
143 * ignore the result anyway
145 ssl3_finish_mac(s, (unsigned char *)&s->init_buf->data[s->init_off],
148 if (ret == s->init_num) {
150 s->msg_callback(1, s->version, type, s->init_buf->data,
151 (size_t)(s->init_off + s->init_num), s,
152 s->msg_callback_arg);
160 int tls_construct_finished(SSL *s, const char *sender, int slen)
166 p = ssl_handshake_start(s);
168 i = s->method->ssl3_enc->final_finish_mac(s,
170 s->s3->tmp.finish_md);
173 s->s3->tmp.finish_md_len = i;
174 memcpy(p, s->s3->tmp.finish_md, i);
178 * Copy the finished so we can use it for renegotiation checks
181 OPENSSL_assert(i <= EVP_MAX_MD_SIZE);
182 memcpy(s->s3->previous_client_finished, s->s3->tmp.finish_md, i);
183 s->s3->previous_client_finished_len = i;
185 OPENSSL_assert(i <= EVP_MAX_MD_SIZE);
186 memcpy(s->s3->previous_server_finished, s->s3->tmp.finish_md, i);
187 s->s3->previous_server_finished_len = i;
190 if (!ssl_set_handshake_header(s, SSL3_MT_FINISHED, l)) {
191 SSLerr(SSL_F_TLS_CONSTRUCT_FINISHED, ERR_R_INTERNAL_ERROR);
198 #ifndef OPENSSL_NO_NEXTPROTONEG
200 * ssl3_take_mac calculates the Finished MAC for the handshakes messages seen
203 static void ssl3_take_mac(SSL *s)
208 * If no new cipher setup return immediately: other functions will set
209 * the appropriate error.
211 if (s->s3->tmp.new_cipher == NULL)
214 sender = s->method->ssl3_enc->server_finished_label;
215 slen = s->method->ssl3_enc->server_finished_label_len;
217 sender = s->method->ssl3_enc->client_finished_label;
218 slen = s->method->ssl3_enc->client_finished_label_len;
221 s->s3->tmp.peer_finish_md_len = s->method->ssl3_enc->final_finish_mac(s,
224 s->s3->tmp.peer_finish_md);
228 MSG_PROCESS_RETURN tls_process_change_cipher_spec(SSL *s, PACKET *pkt)
233 remain = PACKET_remaining(pkt);
235 * 'Change Cipher Spec' is just a single byte, which should already have
236 * been consumed by ssl_get_message() so there should be no bytes left,
237 * unless we're using DTLS1_BAD_VER, which has an extra 2 bytes
239 if (SSL_IS_DTLS(s)) {
240 if ((s->version == DTLS1_BAD_VER
241 && remain != DTLS1_CCS_HEADER_LENGTH + 1)
242 || (s->version != DTLS1_BAD_VER
243 && remain != DTLS1_CCS_HEADER_LENGTH - 1)) {
244 al = SSL_AD_ILLEGAL_PARAMETER;
245 SSLerr(SSL_F_TLS_PROCESS_CHANGE_CIPHER_SPEC,
246 SSL_R_BAD_CHANGE_CIPHER_SPEC);
251 al = SSL_AD_ILLEGAL_PARAMETER;
252 SSLerr(SSL_F_TLS_PROCESS_CHANGE_CIPHER_SPEC,
253 SSL_R_BAD_CHANGE_CIPHER_SPEC);
258 /* Check we have a cipher to change to */
259 if (s->s3->tmp.new_cipher == NULL) {
260 al = SSL_AD_UNEXPECTED_MESSAGE;
261 SSLerr(SSL_F_TLS_PROCESS_CHANGE_CIPHER_SPEC, SSL_R_CCS_RECEIVED_EARLY);
265 s->s3->change_cipher_spec = 1;
266 if (!ssl3_do_change_cipher_spec(s)) {
267 al = SSL_AD_INTERNAL_ERROR;
268 SSLerr(SSL_F_TLS_PROCESS_CHANGE_CIPHER_SPEC, ERR_R_INTERNAL_ERROR);
272 if (SSL_IS_DTLS(s)) {
273 dtls1_reset_seq_numbers(s, SSL3_CC_READ);
275 if (s->version == DTLS1_BAD_VER)
276 s->d1->handshake_read_seq++;
278 #ifndef OPENSSL_NO_SCTP
280 * Remember that a CCS has been received, so that an old key of
281 * SCTP-Auth can be deleted when a CCS is sent. Will be ignored if no
284 BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_AUTH_CCS_RCVD, 1, NULL);
288 return MSG_PROCESS_CONTINUE_READING;
290 ssl3_send_alert(s, SSL3_AL_FATAL, al);
291 ossl_statem_set_error(s);
292 return MSG_PROCESS_ERROR;
295 MSG_PROCESS_RETURN tls_process_finished(SSL *s, PACKET *pkt)
299 /* If this occurs, we have missed a message */
300 if (!s->s3->change_cipher_spec) {
301 al = SSL_AD_UNEXPECTED_MESSAGE;
302 SSLerr(SSL_F_TLS_PROCESS_FINISHED, SSL_R_GOT_A_FIN_BEFORE_A_CCS);
305 s->s3->change_cipher_spec = 0;
307 i = s->s3->tmp.peer_finish_md_len;
309 if ((unsigned long)i != PACKET_remaining(pkt)) {
310 al = SSL_AD_DECODE_ERROR;
311 SSLerr(SSL_F_TLS_PROCESS_FINISHED, SSL_R_BAD_DIGEST_LENGTH);
315 if (CRYPTO_memcmp(PACKET_data(pkt), s->s3->tmp.peer_finish_md, i) != 0) {
316 al = SSL_AD_DECRYPT_ERROR;
317 SSLerr(SSL_F_TLS_PROCESS_FINISHED, SSL_R_DIGEST_CHECK_FAILED);
322 * Copy the finished so we can use it for renegotiation checks
325 OPENSSL_assert(i <= EVP_MAX_MD_SIZE);
326 memcpy(s->s3->previous_client_finished, s->s3->tmp.peer_finish_md, i);
327 s->s3->previous_client_finished_len = i;
329 OPENSSL_assert(i <= EVP_MAX_MD_SIZE);
330 memcpy(s->s3->previous_server_finished, s->s3->tmp.peer_finish_md, i);
331 s->s3->previous_server_finished_len = i;
334 return MSG_PROCESS_FINISHED_READING;
336 ssl3_send_alert(s, SSL3_AL_FATAL, al);
337 ossl_statem_set_error(s);
338 return MSG_PROCESS_ERROR;
341 int tls_construct_change_cipher_spec(SSL *s)
345 p = (unsigned char *)s->init_buf->data;
353 unsigned long ssl3_output_cert_chain(SSL *s, CERT_PKEY *cpk)
356 unsigned long l = 3 + SSL_HM_HEADER_LENGTH(s);
358 if (!ssl_add_cert_chain(s, cpk, &l))
361 l -= 3 + SSL_HM_HEADER_LENGTH(s);
362 p = ssl_handshake_start(s);
366 if (!ssl_set_handshake_header(s, SSL3_MT_CERTIFICATE, l)) {
367 SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN, ERR_R_INTERNAL_ERROR);
370 return l + SSL_HM_HEADER_LENGTH(s);
373 WORK_STATE tls_finish_handshake(SSL *s, WORK_STATE wst)
375 void (*cb) (const SSL *ssl, int type, int val) = NULL;
377 #ifndef OPENSSL_NO_SCTP
378 if (SSL_IS_DTLS(s) && BIO_dgram_is_sctp(SSL_get_wbio(s))) {
380 ret = dtls_wait_for_dry(s);
381 if (ret != WORK_FINISHED_CONTINUE)
386 /* clean a few things up */
387 ssl3_cleanup_key_block(s);
389 if (!SSL_IS_DTLS(s)) {
391 * We don't do this in DTLS because we may still need the init_buf
392 * in case there are any unexpected retransmits
394 BUF_MEM_free(s->init_buf);
398 ssl_free_wbio_buffer(s);
402 if (!s->server || s->renegotiate == 2) {
403 /* skipped if we just sent a HelloRequest */
411 ssl_update_cache(s, SSL_SESS_CACHE_SERVER);
413 s->ctx->stats.sess_accept_good++;
414 s->handshake_func = ossl_statem_accept;
416 ssl_update_cache(s, SSL_SESS_CACHE_CLIENT);
418 s->ctx->stats.sess_hit++;
420 s->handshake_func = ossl_statem_connect;
421 s->ctx->stats.sess_connect_good++;
424 if (s->info_callback != NULL)
425 cb = s->info_callback;
426 else if (s->ctx->info_callback != NULL)
427 cb = s->ctx->info_callback;
430 cb(s, SSL_CB_HANDSHAKE_DONE, 1);
432 if (SSL_IS_DTLS(s)) {
433 /* done with handshaking */
434 s->d1->handshake_read_seq = 0;
435 s->d1->handshake_write_seq = 0;
436 s->d1->next_handshake_write_seq = 0;
440 return WORK_FINISHED_STOP;
443 int tls_get_message_header(SSL *s, int *mt)
445 /* s->init_num < SSL3_HM_HEADER_LENGTH */
446 int skip_message, i, recvd_type, al;
450 p = (unsigned char *)s->init_buf->data;
453 while (s->init_num < SSL3_HM_HEADER_LENGTH) {
454 i = s->method->ssl_read_bytes(s, SSL3_RT_HANDSHAKE, &recvd_type,
455 &p[s->init_num], SSL3_HM_HEADER_LENGTH - s->init_num, 0);
457 s->rwstate = SSL_READING;
460 if (recvd_type == SSL3_RT_CHANGE_CIPHER_SPEC) {
461 s->s3->tmp.message_type = *mt = SSL3_MT_CHANGE_CIPHER_SPEC;
463 s->s3->tmp.message_size = i;
465 } else if (recvd_type != SSL3_RT_HANDSHAKE) {
466 al = SSL_AD_UNEXPECTED_MESSAGE;
467 SSLerr(SSL_F_TLS_GET_MESSAGE_HEADER, SSL_R_CCS_RECEIVED_EARLY);
475 if (p[0] == SSL3_MT_HELLO_REQUEST)
477 * The server may always send 'Hello Request' messages --
478 * we are doing a handshake anyway now, so ignore them if
479 * their format is correct. Does not count for 'Finished'
482 if (p[1] == 0 && p[2] == 0 && p[3] == 0) {
487 s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE,
488 p, SSL3_HM_HEADER_LENGTH, s,
489 s->msg_callback_arg);
491 } while (skip_message);
492 /* s->init_num == SSL3_HM_HEADER_LENGTH */
495 s->s3->tmp.message_type = *(p++);
497 if(RECORD_LAYER_is_sslv2_record(&s->rlayer)) {
499 * Only happens with SSLv3+ in an SSLv2 backward compatible
503 * Total message size is the remaining record bytes to read
504 * plus the SSL3_HM_HEADER_LENGTH bytes that we already read
506 l = RECORD_LAYER_get_rrec_length(&s->rlayer)
507 + SSL3_HM_HEADER_LENGTH;
508 if (l && !BUF_MEM_grow_clean(s->init_buf, (int)l)) {
509 SSLerr(SSL_F_TLS_GET_MESSAGE_HEADER, ERR_R_BUF_LIB);
512 s->s3->tmp.message_size = l;
514 s->init_msg = s->init_buf->data;
515 s->init_num = SSL3_HM_HEADER_LENGTH;
518 /* BUF_MEM_grow takes an 'int' parameter */
519 if (l > (INT_MAX - SSL3_HM_HEADER_LENGTH)) {
520 al = SSL_AD_ILLEGAL_PARAMETER;
521 SSLerr(SSL_F_TLS_GET_MESSAGE_HEADER, SSL_R_EXCESSIVE_MESSAGE_SIZE);
524 if (l && !BUF_MEM_grow_clean(s->init_buf,
525 (int)l + SSL3_HM_HEADER_LENGTH)) {
526 SSLerr(SSL_F_TLS_GET_MESSAGE_HEADER, ERR_R_BUF_LIB);
529 s->s3->tmp.message_size = l;
531 s->init_msg = s->init_buf->data + SSL3_HM_HEADER_LENGTH;
537 ssl3_send_alert(s, SSL3_AL_FATAL, al);
542 int tls_get_message_body(SSL *s, unsigned long *len)
548 if (s->s3->tmp.message_type == SSL3_MT_CHANGE_CIPHER_SPEC) {
549 /* We've already read everything in */
550 *len = (unsigned long)s->init_num;
555 n = s->s3->tmp.message_size - s->init_num;
557 i = s->method->ssl_read_bytes(s, SSL3_RT_HANDSHAKE, NULL,
558 &p[s->init_num], n, 0);
560 s->rwstate = SSL_READING;
568 #ifndef OPENSSL_NO_NEXTPROTONEG
570 * If receiving Finished, record MAC of prior handshake messages for
571 * Finished verification.
573 if (*s->init_buf->data == SSL3_MT_FINISHED)
577 /* Feed this message into MAC computation. */
578 if(RECORD_LAYER_is_sslv2_record(&s->rlayer)) {
579 ssl3_finish_mac(s, (unsigned char *)s->init_buf->data, s->init_num);
581 s->msg_callback(0, SSL2_VERSION, 0, s->init_buf->data,
582 (size_t)s->init_num, s, s->msg_callback_arg);
584 ssl3_finish_mac(s, (unsigned char *)s->init_buf->data,
585 s->init_num + SSL3_HM_HEADER_LENGTH);
587 s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, s->init_buf->data,
588 (size_t)s->init_num + SSL3_HM_HEADER_LENGTH, s,
589 s->msg_callback_arg);
593 * init_num should never be negative...should probably be declared
596 if (s->init_num < 0) {
597 SSLerr(SSL_F_TLS_GET_MESSAGE_BODY, ERR_R_INTERNAL_ERROR);
598 ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
602 *len = (unsigned long)s->init_num;
606 int ssl_cert_type(X509 *x, EVP_PKEY *pkey)
612 pk = X509_get_pubkey(x);
619 if (i == EVP_PKEY_RSA) {
620 ret = SSL_PKEY_RSA_ENC;
621 } else if (i == EVP_PKEY_DSA) {
622 ret = SSL_PKEY_DSA_SIGN;
624 #ifndef OPENSSL_NO_EC
625 else if (i == EVP_PKEY_EC) {
629 else if (i == NID_id_GostR3410_2001) {
630 ret = SSL_PKEY_GOST01;
631 } else if (x && (i == EVP_PKEY_DH || i == EVP_PKEY_DHX)) {
633 * For DH two cases: DH certificate signed with RSA and DH
634 * certificate signed with DSA.
636 i = X509_certificate_type(x, pk);
638 ret = SSL_PKEY_DH_RSA;
639 else if (i & EVP_PKS_DSA)
640 ret = SSL_PKEY_DH_DSA;
649 int ssl_verify_alarm_type(long type)
654 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
655 case X509_V_ERR_UNABLE_TO_GET_CRL:
656 case X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER:
657 al = SSL_AD_UNKNOWN_CA;
659 case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
660 case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE:
661 case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
662 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
663 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
664 case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD:
665 case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD:
666 case X509_V_ERR_CERT_NOT_YET_VALID:
667 case X509_V_ERR_CRL_NOT_YET_VALID:
668 case X509_V_ERR_CERT_UNTRUSTED:
669 case X509_V_ERR_CERT_REJECTED:
670 al = SSL_AD_BAD_CERTIFICATE;
672 case X509_V_ERR_CERT_SIGNATURE_FAILURE:
673 case X509_V_ERR_CRL_SIGNATURE_FAILURE:
674 al = SSL_AD_DECRYPT_ERROR;
676 case X509_V_ERR_CERT_HAS_EXPIRED:
677 case X509_V_ERR_CRL_HAS_EXPIRED:
678 al = SSL_AD_CERTIFICATE_EXPIRED;
680 case X509_V_ERR_CERT_REVOKED:
681 al = SSL_AD_CERTIFICATE_REVOKED;
683 case X509_V_ERR_OUT_OF_MEM:
684 al = SSL_AD_INTERNAL_ERROR;
686 case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
687 case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN:
688 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY:
689 case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE:
690 case X509_V_ERR_CERT_CHAIN_TOO_LONG:
691 case X509_V_ERR_PATH_LENGTH_EXCEEDED:
692 case X509_V_ERR_INVALID_CA:
693 al = SSL_AD_UNKNOWN_CA;
695 case X509_V_ERR_APPLICATION_VERIFICATION:
696 al = SSL_AD_HANDSHAKE_FAILURE;
698 case X509_V_ERR_INVALID_PURPOSE:
699 al = SSL_AD_UNSUPPORTED_CERTIFICATE;
702 al = SSL_AD_CERTIFICATE_UNKNOWN;
708 int ssl_allow_compression(SSL *s)
710 if (s->options & SSL_OP_NO_COMPRESSION)
712 return ssl_security(s, SSL_SECOP_COMPRESSION, 0, 0, NULL);