2 * ! \file ssl/ssl_lib.c \brief Version independent SSL functions.
4 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
7 * This package is an SSL implementation written
8 * by Eric Young (eay@cryptsoft.com).
9 * The implementation was written so as to conform with Netscapes SSL.
11 * This library is free for commercial and non-commercial use as long as
12 * the following conditions are aheared to. The following conditions
13 * apply to all code found in this distribution, be it the RC4, RSA,
14 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
15 * included with this distribution is covered by the same copyright terms
16 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
18 * Copyright remains Eric Young's, and as such any Copyright notices in
19 * the code are not to be removed.
20 * If this package is used in a product, Eric Young should be given attribution
21 * as the author of the parts of the library used.
22 * This can be in the form of a textual message at program startup or
23 * in documentation (online or textual) provided with the package.
25 * Redistribution and use in source and binary forms, with or without
26 * modification, are permitted provided that the following conditions
28 * 1. Redistributions of source code must retain the copyright
29 * notice, this list of conditions and the following disclaimer.
30 * 2. Redistributions in binary form must reproduce the above copyright
31 * notice, this list of conditions and the following disclaimer in the
32 * documentation and/or other materials provided with the distribution.
33 * 3. All advertising materials mentioning features or use of this software
34 * must display the following acknowledgement:
35 * "This product includes cryptographic software written by
36 * Eric Young (eay@cryptsoft.com)"
37 * The word 'cryptographic' can be left out if the rouines from the library
38 * being used are not cryptographic related :-).
39 * 4. If you include any Windows specific code (or a derivative thereof) from
40 * the apps directory (application code) you must include an acknowledgement:
41 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
43 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55 * The licence and distribution terms for any publically available version or
56 * derivative of this code cannot be changed. i.e. this code cannot simply be
57 * copied and put under another distribution licence
58 * [including the GNU Public Licence.]
60 /* ====================================================================
61 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
63 * Redistribution and use in source and binary forms, with or without
64 * modification, are permitted provided that the following conditions
67 * 1. Redistributions of source code must retain the above copyright
68 * notice, this list of conditions and the following disclaimer.
70 * 2. Redistributions in binary form must reproduce the above copyright
71 * notice, this list of conditions and the following disclaimer in
72 * the documentation and/or other materials provided with the
75 * 3. All advertising materials mentioning features or use of this
76 * software must display the following acknowledgment:
77 * "This product includes software developed by the OpenSSL Project
78 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
80 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
81 * endorse or promote products derived from this software without
82 * prior written permission. For written permission, please contact
83 * openssl-core@openssl.org.
85 * 5. Products derived from this software may not be called "OpenSSL"
86 * nor may "OpenSSL" appear in their names without prior written
87 * permission of the OpenSSL Project.
89 * 6. Redistributions of any form whatsoever must retain the following
91 * "This product includes software developed by the OpenSSL Project
92 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
94 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
95 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
96 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
97 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
98 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
99 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
100 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
101 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
102 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
103 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
104 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
105 * OF THE POSSIBILITY OF SUCH DAMAGE.
106 * ====================================================================
108 * This product includes cryptographic software written by Eric Young
109 * (eay@cryptsoft.com). This product includes software written by Tim
110 * Hudson (tjh@cryptsoft.com).
113 /* ====================================================================
114 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
115 * ECC cipher suite support in OpenSSL originally developed by
116 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
118 /* ====================================================================
119 * Copyright 2005 Nokia. All rights reserved.
121 * The portions of the attached software ("Contribution") is developed by
122 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
125 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
126 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
127 * support (see RFC 4279) to OpenSSL.
129 * No patent licenses or other rights except those expressly stated in
130 * the OpenSSL open source license shall be deemed granted or received
131 * expressly, by implication, estoppel, or otherwise.
133 * No assurances are provided by Nokia that the Contribution does not
134 * infringe the patent or other intellectual property rights of any third
135 * party or that the license provides you with all the necessary rights
136 * to make use of the Contribution.
138 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
139 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
140 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
141 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
149 #include "ssl_locl.h"
150 #include "kssl_lcl.h"
151 #include <openssl/objects.h>
152 #include <openssl/lhash.h>
153 #include <openssl/x509v3.h>
154 #include <openssl/rand.h>
155 #include <openssl/ocsp.h>
156 #ifndef OPENSSL_NO_DH
157 # include <openssl/dh.h>
159 #ifndef OPENSSL_NO_ENGINE
160 # include <openssl/engine.h>
163 const char *SSL_version_str
= OPENSSL_VERSION_TEXT
;
165 SSL3_ENC_METHOD ssl3_undef_enc_method
= {
167 * evil casts, but these functions are only called if there's a library
170 (int (*)(SSL
*, int))ssl_undefined_function
,
171 (int (*)(SSL
*, unsigned char *, int))ssl_undefined_function
,
172 ssl_undefined_function
,
173 (int (*)(SSL
*, unsigned char *, unsigned char *, int))
174 ssl_undefined_function
,
175 (int (*)(SSL
*, int))ssl_undefined_function
,
176 (int (*)(SSL
*, const char *, int, unsigned char *))
177 ssl_undefined_function
,
178 0, /* finish_mac_length */
179 (int (*)(SSL
*, int, unsigned char *))ssl_undefined_function
,
180 NULL
, /* client_finished_label */
181 0, /* client_finished_label_len */
182 NULL
, /* server_finished_label */
183 0, /* server_finished_label_len */
184 (int (*)(int))ssl_undefined_function
,
185 (int (*)(SSL
*, unsigned char *, size_t, const char *,
186 size_t, const unsigned char *, size_t,
187 int use_context
))ssl_undefined_function
,
190 int SSL_clear(SSL
*s
)
193 if (s
->method
== NULL
) {
194 SSLerr(SSL_F_SSL_CLEAR
, SSL_R_NO_METHOD_SPECIFIED
);
198 if (ssl_clear_bad_session(s
)) {
199 SSL_SESSION_free(s
->session
);
209 * Disabled since version 1.10 of this file (early return not
210 * needed because SSL_clear is not called when doing renegotiation)
213 * This is set if we are doing dynamic renegotiation so keep
214 * the old cipher. It is sort of a SSL_clear_lite :-)
219 if (s
->renegotiate
) {
220 SSLerr(SSL_F_SSL_CLEAR
, ERR_R_INTERNAL_ERROR
);
227 s
->state
= SSL_ST_BEFORE
| ((s
->server
) ? SSL_ST_ACCEPT
: SSL_ST_CONNECT
);
229 s
->version
= s
->method
->version
;
230 s
->client_version
= s
->version
;
231 s
->rwstate
= SSL_NOTHING
;
232 s
->rstate
= SSL_ST_READ_HEADER
;
234 s
->read_ahead
= s
->ctx
->read_ahead
;
237 if (s
->init_buf
!= NULL
) {
238 BUF_MEM_free(s
->init_buf
);
242 ssl_clear_cipher_ctx(s
);
243 ssl_clear_hash_ctx(&s
->read_hash
);
244 ssl_clear_hash_ctx(&s
->write_hash
);
250 * Check to see if we were changed into a different method, if so, revert
251 * back if we are not doing session-id reuse.
253 if (!s
->in_handshake
&& (s
->session
== NULL
)
254 && (s
->method
!= s
->ctx
->method
)) {
255 s
->method
->ssl_free(s
);
256 s
->method
= s
->ctx
->method
;
257 if (!s
->method
->ssl_new(s
))
261 s
->method
->ssl_clear(s
);
265 /** Used to change an SSL_CTXs default SSL method type */
266 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
, const SSL_METHOD
*meth
)
268 STACK_OF(SSL_CIPHER
) *sk
;
272 sk
= ssl_create_cipher_list(ctx
->method
, &(ctx
->cipher_list
),
273 &(ctx
->cipher_list_by_id
),
275 SSL2_VERSION
? "SSLv2" :
276 SSL_DEFAULT_CIPHER_LIST
, ctx
->cert
);
277 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
278 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
,
279 SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
285 SSL
*SSL_new(SSL_CTX
*ctx
)
290 SSLerr(SSL_F_SSL_NEW
, SSL_R_NULL_SSL_CTX
);
293 if (ctx
->method
== NULL
) {
294 SSLerr(SSL_F_SSL_NEW
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
298 s
= (SSL
*)OPENSSL_malloc(sizeof(SSL
));
301 memset(s
, 0, sizeof(SSL
));
303 #ifndef OPENSSL_NO_KRB5
304 s
->kssl_ctx
= kssl_ctx_new();
305 #endif /* OPENSSL_NO_KRB5 */
307 s
->options
= ctx
->options
;
309 s
->max_cert_list
= ctx
->max_cert_list
;
312 if (ctx
->cert
!= NULL
) {
314 * Earlier library versions used to copy the pointer to the CERT, not
315 * its contents; only when setting new parameters for the per-SSL
316 * copy, ssl_cert_new would be called (and the direct reference to
317 * the per-SSL_CTX settings would be lost, but those still were
318 * indirectly accessed for various purposes, and for that reason they
319 * used to be known as s->ctx->default_cert). Now we don't look at the
320 * SSL_CTX's CERT after having duplicated it once.
323 s
->cert
= ssl_cert_dup(ctx
->cert
);
327 s
->cert
= NULL
; /* Cannot really happen (see SSL_CTX_new) */
329 s
->read_ahead
= ctx
->read_ahead
;
330 s
->msg_callback
= ctx
->msg_callback
;
331 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
332 s
->verify_mode
= ctx
->verify_mode
;
334 s
->verify_depth
= ctx
->verify_depth
;
336 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
337 OPENSSL_assert(s
->sid_ctx_length
<= sizeof s
->sid_ctx
);
338 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
339 s
->verify_callback
= ctx
->default_verify_callback
;
340 s
->generate_session_id
= ctx
->generate_session_id
;
342 s
->param
= X509_VERIFY_PARAM_new();
345 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
347 s
->purpose
= ctx
->purpose
;
348 s
->trust
= ctx
->trust
;
350 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
351 s
->max_send_fragment
= ctx
->max_send_fragment
;
353 CRYPTO_add(&ctx
->references
, 1, CRYPTO_LOCK_SSL_CTX
);
355 #ifndef OPENSSL_NO_TLSEXT
356 s
->tlsext_debug_cb
= 0;
357 s
->tlsext_debug_arg
= NULL
;
358 s
->tlsext_ticket_expected
= 0;
359 s
->tlsext_status_type
= -1;
360 s
->tlsext_status_expected
= 0;
361 s
->tlsext_ocsp_ids
= NULL
;
362 s
->tlsext_ocsp_exts
= NULL
;
363 s
->tlsext_ocsp_resp
= NULL
;
364 s
->tlsext_ocsp_resplen
= -1;
365 CRYPTO_add(&ctx
->references
, 1, CRYPTO_LOCK_SSL_CTX
);
366 s
->initial_ctx
= ctx
;
367 # ifndef OPENSSL_NO_EC
368 if (ctx
->tlsext_ecpointformatlist
) {
369 s
->tlsext_ecpointformatlist
=
370 BUF_memdup(ctx
->tlsext_ecpointformatlist
,
371 ctx
->tlsext_ecpointformatlist_length
);
372 if (!s
->tlsext_ecpointformatlist
)
374 s
->tlsext_ecpointformatlist_length
=
375 ctx
->tlsext_ecpointformatlist_length
;
377 if (ctx
->tlsext_ellipticcurvelist
) {
378 s
->tlsext_ellipticcurvelist
=
379 BUF_memdup(ctx
->tlsext_ellipticcurvelist
,
380 ctx
->tlsext_ellipticcurvelist_length
);
381 if (!s
->tlsext_ellipticcurvelist
)
383 s
->tlsext_ellipticcurvelist_length
=
384 ctx
->tlsext_ellipticcurvelist_length
;
387 # ifndef OPENSSL_NO_NEXTPROTONEG
388 s
->next_proto_negotiated
= NULL
;
391 if (s
->ctx
->alpn_client_proto_list
) {
392 s
->alpn_client_proto_list
=
393 OPENSSL_malloc(s
->ctx
->alpn_client_proto_list_len
);
394 if (s
->alpn_client_proto_list
== NULL
)
396 memcpy(s
->alpn_client_proto_list
, s
->ctx
->alpn_client_proto_list
,
397 s
->ctx
->alpn_client_proto_list_len
);
398 s
->alpn_client_proto_list_len
= s
->ctx
->alpn_client_proto_list_len
;
402 s
->verify_result
= X509_V_OK
;
404 s
->method
= ctx
->method
;
406 if (!s
->method
->ssl_new(s
))
409 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
413 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
415 #ifndef OPENSSL_NO_PSK
416 s
->psk_client_callback
= ctx
->psk_client_callback
;
417 s
->psk_server_callback
= ctx
->psk_server_callback
;
424 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
428 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
429 unsigned int sid_ctx_len
)
431 if (sid_ctx_len
> sizeof ctx
->sid_ctx
) {
432 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,
433 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
436 ctx
->sid_ctx_length
= sid_ctx_len
;
437 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
442 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
443 unsigned int sid_ctx_len
)
445 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
446 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,
447 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
450 ssl
->sid_ctx_length
= sid_ctx_len
;
451 memcpy(ssl
->sid_ctx
, sid_ctx
, sid_ctx_len
);
456 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
458 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX
);
459 ctx
->generate_session_id
= cb
;
460 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX
);
464 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
466 CRYPTO_w_lock(CRYPTO_LOCK_SSL
);
467 ssl
->generate_session_id
= cb
;
468 CRYPTO_w_unlock(CRYPTO_LOCK_SSL
);
472 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
476 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
477 * we can "construct" a session to give us the desired check - ie. to
478 * find if there's a session in the hash table that would conflict with
479 * any new session built out of this id/id_len and the ssl_version in use
484 if (id_len
> sizeof r
.session_id
)
487 r
.ssl_version
= ssl
->version
;
488 r
.session_id_length
= id_len
;
489 memcpy(r
.session_id
, id
, id_len
);
491 * NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
492 * callback is calling us to check the uniqueness of a shorter ID, it
493 * must be compared as a padded-out ID because that is what it will be
494 * converted to when the callback has finished choosing it.
496 if ((r
.ssl_version
== SSL2_VERSION
) &&
497 (id_len
< SSL2_SSL_SESSION_ID_LENGTH
)) {
498 memset(r
.session_id
+ id_len
, 0, SSL2_SSL_SESSION_ID_LENGTH
- id_len
);
499 r
.session_id_length
= SSL2_SSL_SESSION_ID_LENGTH
;
502 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX
);
503 p
= lh_SSL_SESSION_retrieve(ssl
->ctx
->sessions
, &r
);
504 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX
);
508 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
510 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
513 int SSL_set_purpose(SSL
*s
, int purpose
)
515 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
518 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
520 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
523 int SSL_set_trust(SSL
*s
, int trust
)
525 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
528 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
530 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
533 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
535 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
538 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
543 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
548 void SSL_certs_clear(SSL
*s
)
550 ssl_cert_clear_certs(s
->cert
);
553 void SSL_free(SSL
*s
)
560 i
= CRYPTO_add(&s
->references
, -1, CRYPTO_LOCK_SSL
);
568 fprintf(stderr
, "SSL_free, bad reference count\n");
574 X509_VERIFY_PARAM_free(s
->param
);
576 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
578 if (s
->bbio
!= NULL
) {
579 /* If the buffering BIO is in place, pop it off */
580 if (s
->bbio
== s
->wbio
) {
581 s
->wbio
= BIO_pop(s
->wbio
);
587 BIO_free_all(s
->rbio
);
588 if ((s
->wbio
!= NULL
) && (s
->wbio
!= s
->rbio
))
589 BIO_free_all(s
->wbio
);
591 if (s
->init_buf
!= NULL
)
592 BUF_MEM_free(s
->init_buf
);
594 /* add extra stuff */
595 if (s
->cipher_list
!= NULL
)
596 sk_SSL_CIPHER_free(s
->cipher_list
);
597 if (s
->cipher_list_by_id
!= NULL
)
598 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
600 /* Make the next call work :-) */
601 if (s
->session
!= NULL
) {
602 ssl_clear_bad_session(s
);
603 SSL_SESSION_free(s
->session
);
606 ssl_clear_cipher_ctx(s
);
607 ssl_clear_hash_ctx(&s
->read_hash
);
608 ssl_clear_hash_ctx(&s
->write_hash
);
611 ssl_cert_free(s
->cert
);
612 /* Free up if allocated */
614 #ifndef OPENSSL_NO_TLSEXT
615 if (s
->tlsext_hostname
)
616 OPENSSL_free(s
->tlsext_hostname
);
618 SSL_CTX_free(s
->initial_ctx
);
619 # ifndef OPENSSL_NO_EC
620 if (s
->tlsext_ecpointformatlist
)
621 OPENSSL_free(s
->tlsext_ecpointformatlist
);
622 if (s
->tlsext_ellipticcurvelist
)
623 OPENSSL_free(s
->tlsext_ellipticcurvelist
);
624 # endif /* OPENSSL_NO_EC */
625 if (s
->tlsext_opaque_prf_input
)
626 OPENSSL_free(s
->tlsext_opaque_prf_input
);
627 if (s
->tlsext_ocsp_exts
)
628 sk_X509_EXTENSION_pop_free(s
->tlsext_ocsp_exts
, X509_EXTENSION_free
);
629 if (s
->tlsext_ocsp_ids
)
630 sk_OCSP_RESPID_pop_free(s
->tlsext_ocsp_ids
, OCSP_RESPID_free
);
631 if (s
->tlsext_ocsp_resp
)
632 OPENSSL_free(s
->tlsext_ocsp_resp
);
633 if (s
->alpn_client_proto_list
)
634 OPENSSL_free(s
->alpn_client_proto_list
);
637 if (s
->client_CA
!= NULL
)
638 sk_X509_NAME_pop_free(s
->client_CA
, X509_NAME_free
);
640 if (s
->method
!= NULL
)
641 s
->method
->ssl_free(s
);
644 SSL_CTX_free(s
->ctx
);
646 #ifndef OPENSSL_NO_KRB5
647 if (s
->kssl_ctx
!= NULL
)
648 kssl_ctx_free(s
->kssl_ctx
);
649 #endif /* OPENSSL_NO_KRB5 */
651 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
652 if (s
->next_proto_negotiated
)
653 OPENSSL_free(s
->next_proto_negotiated
);
656 #ifndef OPENSSL_NO_SRTP
657 if (s
->srtp_profiles
)
658 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
664 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
667 * If the output buffering BIO is still in place, remove it
669 if (s
->bbio
!= NULL
) {
670 if (s
->wbio
== s
->bbio
) {
671 s
->wbio
= s
->wbio
->next_bio
;
672 s
->bbio
->next_bio
= NULL
;
675 if ((s
->rbio
!= NULL
) && (s
->rbio
!= rbio
))
676 BIO_free_all(s
->rbio
);
677 if ((s
->wbio
!= NULL
) && (s
->wbio
!= wbio
) && (s
->rbio
!= s
->wbio
))
678 BIO_free_all(s
->wbio
);
683 BIO
*SSL_get_rbio(const SSL
*s
)
688 BIO
*SSL_get_wbio(const SSL
*s
)
693 int SSL_get_fd(const SSL
*s
)
695 return (SSL_get_rfd(s
));
698 int SSL_get_rfd(const SSL
*s
)
704 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
710 int SSL_get_wfd(const SSL
*s
)
716 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
722 #ifndef OPENSSL_NO_SOCK
723 int SSL_set_fd(SSL
*s
, int fd
)
728 bio
= BIO_new(BIO_s_socket());
731 SSLerr(SSL_F_SSL_SET_FD
, ERR_R_BUF_LIB
);
734 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
735 SSL_set_bio(s
, bio
, bio
);
741 int SSL_set_wfd(SSL
*s
, int fd
)
746 if ((s
->rbio
== NULL
) || (BIO_method_type(s
->rbio
) != BIO_TYPE_SOCKET
)
747 || ((int)BIO_get_fd(s
->rbio
, NULL
) != fd
)) {
748 bio
= BIO_new(BIO_s_socket());
751 SSLerr(SSL_F_SSL_SET_WFD
, ERR_R_BUF_LIB
);
754 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
755 SSL_set_bio(s
, SSL_get_rbio(s
), bio
);
757 SSL_set_bio(s
, SSL_get_rbio(s
), SSL_get_rbio(s
));
763 int SSL_set_rfd(SSL
*s
, int fd
)
768 if ((s
->wbio
== NULL
) || (BIO_method_type(s
->wbio
) != BIO_TYPE_SOCKET
)
769 || ((int)BIO_get_fd(s
->wbio
, NULL
) != fd
)) {
770 bio
= BIO_new(BIO_s_socket());
773 SSLerr(SSL_F_SSL_SET_RFD
, ERR_R_BUF_LIB
);
776 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
777 SSL_set_bio(s
, bio
, SSL_get_wbio(s
));
779 SSL_set_bio(s
, SSL_get_wbio(s
), SSL_get_wbio(s
));
786 /* return length of latest Finished message we sent, copy to 'buf' */
787 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
792 ret
= s
->s3
->tmp
.finish_md_len
;
795 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
800 /* return length of latest Finished message we expected, copy to 'buf' */
801 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
806 ret
= s
->s3
->tmp
.peer_finish_md_len
;
809 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
814 int SSL_get_verify_mode(const SSL
*s
)
816 return (s
->verify_mode
);
819 int SSL_get_verify_depth(const SSL
*s
)
821 return X509_VERIFY_PARAM_get_depth(s
->param
);
824 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
825 return (s
->verify_callback
);
828 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
830 return (ctx
->verify_mode
);
833 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
835 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
838 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
839 return (ctx
->default_verify_callback
);
842 void SSL_set_verify(SSL
*s
, int mode
,
843 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
845 s
->verify_mode
= mode
;
846 if (callback
!= NULL
)
847 s
->verify_callback
= callback
;
850 void SSL_set_verify_depth(SSL
*s
, int depth
)
852 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
855 void SSL_set_read_ahead(SSL
*s
, int yes
)
860 int SSL_get_read_ahead(const SSL
*s
)
862 return (s
->read_ahead
);
865 int SSL_pending(const SSL
*s
)
868 * SSL_pending cannot work properly if read-ahead is enabled
869 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
870 * impossible to fix since SSL_pending cannot report errors that may be
871 * observed while scanning the new data. (Note that SSL_pending() is
872 * often used as a boolean value, so we'd better not return -1.)
874 return (s
->method
->ssl_pending(s
));
877 X509
*SSL_get_peer_certificate(const SSL
*s
)
881 if ((s
== NULL
) || (s
->session
== NULL
))
884 r
= s
->session
->peer
;
889 CRYPTO_add(&r
->references
, 1, CRYPTO_LOCK_X509
);
894 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
898 if ((s
== NULL
) || (s
->session
== NULL
)
899 || (s
->session
->sess_cert
== NULL
))
902 r
= s
->session
->sess_cert
->cert_chain
;
905 * If we are a client, cert_chain includes the peer's own certificate; if
906 * we are a server, it does not.
913 * Now in theory, since the calling process own 't' it should be safe to
914 * modify. We need to be able to read f without being hassled
916 void SSL_copy_session_id(SSL
*t
, const SSL
*f
)
920 /* Do we need to to SSL locking? */
921 SSL_set_session(t
, SSL_get_session(f
));
924 * what if we are setup as SSLv2 but want to talk SSLv3 or vice-versa
926 if (t
->method
!= f
->method
) {
927 t
->method
->ssl_free(t
); /* cleanup current */
928 t
->method
= f
->method
; /* change method */
929 t
->method
->ssl_new(t
); /* setup new */
933 if (f
->cert
!= NULL
) {
934 CRYPTO_add(&f
->cert
->references
, 1, CRYPTO_LOCK_SSL_CERT
);
940 SSL_set_session_id_context(t
, f
->sid_ctx
, f
->sid_ctx_length
);
943 /* Fix this so it checks all the valid key/cert options */
944 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
947 (ctx
->cert
== NULL
) || (ctx
->cert
->key
->x509
== NULL
)) {
948 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,
949 SSL_R_NO_CERTIFICATE_ASSIGNED
);
952 if (ctx
->cert
->key
->privatekey
== NULL
) {
953 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,
954 SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
957 return (X509_check_private_key
958 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
));
961 /* Fix this function so that it takes an optional type parameter */
962 int SSL_check_private_key(const SSL
*ssl
)
965 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, ERR_R_PASSED_NULL_PARAMETER
);
968 if (ssl
->cert
== NULL
) {
969 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
972 if (ssl
->cert
->key
->x509
== NULL
) {
973 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
976 if (ssl
->cert
->key
->privatekey
== NULL
) {
977 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
980 return (X509_check_private_key(ssl
->cert
->key
->x509
,
981 ssl
->cert
->key
->privatekey
));
984 int SSL_accept(SSL
*s
)
986 if (s
->handshake_func
== 0)
987 /* Not properly initialized yet */
988 SSL_set_accept_state(s
);
990 return (s
->method
->ssl_accept(s
));
993 int SSL_connect(SSL
*s
)
995 if (s
->handshake_func
== 0)
996 /* Not properly initialized yet */
997 SSL_set_connect_state(s
);
999 return (s
->method
->ssl_connect(s
));
1002 long SSL_get_default_timeout(const SSL
*s
)
1004 return (s
->method
->get_timeout());
1007 int SSL_read(SSL
*s
, void *buf
, int num
)
1009 if (s
->handshake_func
== 0) {
1010 SSLerr(SSL_F_SSL_READ
, SSL_R_UNINITIALIZED
);
1014 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1015 s
->rwstate
= SSL_NOTHING
;
1018 return (s
->method
->ssl_read(s
, buf
, num
));
1021 int SSL_peek(SSL
*s
, void *buf
, int num
)
1023 if (s
->handshake_func
== 0) {
1024 SSLerr(SSL_F_SSL_PEEK
, SSL_R_UNINITIALIZED
);
1028 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1031 return (s
->method
->ssl_peek(s
, buf
, num
));
1034 int SSL_write(SSL
*s
, const void *buf
, int num
)
1036 if (s
->handshake_func
== 0) {
1037 SSLerr(SSL_F_SSL_WRITE
, SSL_R_UNINITIALIZED
);
1041 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
1042 s
->rwstate
= SSL_NOTHING
;
1043 SSLerr(SSL_F_SSL_WRITE
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
1046 return (s
->method
->ssl_write(s
, buf
, num
));
1049 int SSL_shutdown(SSL
*s
)
1052 * Note that this function behaves differently from what one might
1053 * expect. Return values are 0 for no success (yet), 1 for success; but
1054 * calling it once is usually not enough, even if blocking I/O is used
1055 * (see ssl3_shutdown).
1058 if (s
->handshake_func
== 0) {
1059 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
1063 if (!SSL_in_init(s
)) {
1064 return s
->method
->ssl_shutdown(s
);
1066 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_SHUTDOWN_WHILE_IN_INIT
);
1071 int SSL_renegotiate(SSL
*s
)
1073 if (s
->renegotiate
== 0)
1078 return (s
->method
->ssl_renegotiate(s
));
1081 int SSL_renegotiate_abbreviated(SSL
*s
)
1083 if (s
->renegotiate
== 0)
1088 return (s
->method
->ssl_renegotiate(s
));
1091 int SSL_renegotiate_pending(SSL
*s
)
1094 * becomes true when negotiation is requested; false again once a
1095 * handshake has finished
1097 return (s
->renegotiate
!= 0);
1100 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
1105 case SSL_CTRL_GET_READ_AHEAD
:
1106 return (s
->read_ahead
);
1107 case SSL_CTRL_SET_READ_AHEAD
:
1109 s
->read_ahead
= larg
;
1112 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1113 s
->msg_callback_arg
= parg
;
1116 case SSL_CTRL_OPTIONS
:
1117 return (s
->options
|= larg
);
1118 case SSL_CTRL_CLEAR_OPTIONS
:
1119 return (s
->options
&= ~larg
);
1121 return (s
->mode
|= larg
);
1122 case SSL_CTRL_CLEAR_MODE
:
1123 return (s
->mode
&= ~larg
);
1124 case SSL_CTRL_GET_MAX_CERT_LIST
:
1125 return (s
->max_cert_list
);
1126 case SSL_CTRL_SET_MAX_CERT_LIST
:
1127 l
= s
->max_cert_list
;
1128 s
->max_cert_list
= larg
;
1130 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
1131 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
1133 s
->max_send_fragment
= larg
;
1135 case SSL_CTRL_GET_RI_SUPPORT
:
1137 return s
->s3
->send_connection_binding
;
1140 case SSL_CTRL_CERT_FLAGS
:
1141 return (s
->cert
->cert_flags
|= larg
);
1142 case SSL_CTRL_CLEAR_CERT_FLAGS
:
1143 return (s
->cert
->cert_flags
&= ~larg
);
1145 case SSL_CTRL_GET_RAW_CIPHERLIST
:
1147 if (s
->cert
->ciphers_raw
== NULL
)
1149 *(unsigned char **)parg
= s
->cert
->ciphers_raw
;
1150 return (int)s
->cert
->ciphers_rawlen
;
1152 return ssl_put_cipher_by_char(s
, NULL
, NULL
);
1154 return (s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
));
1158 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
1161 case SSL_CTRL_SET_MSG_CALLBACK
:
1162 s
->msg_callback
= (void (*)
1163 (int write_p
, int version
, int content_type
,
1164 const void *buf
, size_t len
, SSL
*ssl
,
1169 return (s
->method
->ssl_callback_ctrl(s
, cmd
, fp
));
1173 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
1175 return ctx
->sessions
;
1178 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
1181 /* For some cases with ctx == NULL perform syntax checks */
1184 #ifndef OPENSSL_NO_EC
1185 case SSL_CTRL_SET_CURVES_LIST
:
1186 return tls1_set_curves_list(NULL
, NULL
, parg
);
1188 case SSL_CTRL_SET_SIGALGS_LIST
:
1189 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
1190 return tls1_set_sigalgs_list(NULL
, parg
, 0);
1197 case SSL_CTRL_GET_READ_AHEAD
:
1198 return (ctx
->read_ahead
);
1199 case SSL_CTRL_SET_READ_AHEAD
:
1200 l
= ctx
->read_ahead
;
1201 ctx
->read_ahead
= larg
;
1204 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1205 ctx
->msg_callback_arg
= parg
;
1208 case SSL_CTRL_GET_MAX_CERT_LIST
:
1209 return (ctx
->max_cert_list
);
1210 case SSL_CTRL_SET_MAX_CERT_LIST
:
1211 l
= ctx
->max_cert_list
;
1212 ctx
->max_cert_list
= larg
;
1215 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
1216 l
= ctx
->session_cache_size
;
1217 ctx
->session_cache_size
= larg
;
1219 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
1220 return (ctx
->session_cache_size
);
1221 case SSL_CTRL_SET_SESS_CACHE_MODE
:
1222 l
= ctx
->session_cache_mode
;
1223 ctx
->session_cache_mode
= larg
;
1225 case SSL_CTRL_GET_SESS_CACHE_MODE
:
1226 return (ctx
->session_cache_mode
);
1228 case SSL_CTRL_SESS_NUMBER
:
1229 return (lh_SSL_SESSION_num_items(ctx
->sessions
));
1230 case SSL_CTRL_SESS_CONNECT
:
1231 return (ctx
->stats
.sess_connect
);
1232 case SSL_CTRL_SESS_CONNECT_GOOD
:
1233 return (ctx
->stats
.sess_connect_good
);
1234 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
1235 return (ctx
->stats
.sess_connect_renegotiate
);
1236 case SSL_CTRL_SESS_ACCEPT
:
1237 return (ctx
->stats
.sess_accept
);
1238 case SSL_CTRL_SESS_ACCEPT_GOOD
:
1239 return (ctx
->stats
.sess_accept_good
);
1240 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
1241 return (ctx
->stats
.sess_accept_renegotiate
);
1242 case SSL_CTRL_SESS_HIT
:
1243 return (ctx
->stats
.sess_hit
);
1244 case SSL_CTRL_SESS_CB_HIT
:
1245 return (ctx
->stats
.sess_cb_hit
);
1246 case SSL_CTRL_SESS_MISSES
:
1247 return (ctx
->stats
.sess_miss
);
1248 case SSL_CTRL_SESS_TIMEOUTS
:
1249 return (ctx
->stats
.sess_timeout
);
1250 case SSL_CTRL_SESS_CACHE_FULL
:
1251 return (ctx
->stats
.sess_cache_full
);
1252 case SSL_CTRL_OPTIONS
:
1253 return (ctx
->options
|= larg
);
1254 case SSL_CTRL_CLEAR_OPTIONS
:
1255 return (ctx
->options
&= ~larg
);
1257 return (ctx
->mode
|= larg
);
1258 case SSL_CTRL_CLEAR_MODE
:
1259 return (ctx
->mode
&= ~larg
);
1260 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
1261 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
1263 ctx
->max_send_fragment
= larg
;
1265 case SSL_CTRL_CERT_FLAGS
:
1266 return (ctx
->cert
->cert_flags
|= larg
);
1267 case SSL_CTRL_CLEAR_CERT_FLAGS
:
1268 return (ctx
->cert
->cert_flags
&= ~larg
);
1270 return (ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
));
1274 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
1277 case SSL_CTRL_SET_MSG_CALLBACK
:
1278 ctx
->msg_callback
= (void (*)
1279 (int write_p
, int version
, int content_type
,
1280 const void *buf
, size_t len
, SSL
*ssl
,
1285 return (ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
));
1289 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
1297 return ((l
> 0) ? 1 : -1);
1300 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
1301 const SSL_CIPHER
*const *bp
)
1305 l
= (*ap
)->id
- (*bp
)->id
;
1309 return ((l
> 0) ? 1 : -1);
1312 /** return a STACK of the ciphers available for the SSL and in order of
1314 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
1317 if (s
->cipher_list
!= NULL
) {
1318 return (s
->cipher_list
);
1319 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
1320 return (s
->ctx
->cipher_list
);
1326 /** return a STACK of the ciphers available for the SSL and in order of
1328 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
1331 if (s
->cipher_list_by_id
!= NULL
) {
1332 return (s
->cipher_list_by_id
);
1333 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list_by_id
!= NULL
)) {
1334 return (s
->ctx
->cipher_list_by_id
);
1340 /** The old interface to get the same thing as SSL_get_ciphers() */
1341 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
1344 STACK_OF(SSL_CIPHER
) *sk
;
1348 sk
= SSL_get_ciphers(s
);
1349 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
1351 c
= sk_SSL_CIPHER_value(sk
, n
);
1357 /** specify the ciphers to be used by default by the SSL_CTX */
1358 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
1360 STACK_OF(SSL_CIPHER
) *sk
;
1362 sk
= ssl_create_cipher_list(ctx
->method
, &ctx
->cipher_list
,
1363 &ctx
->cipher_list_by_id
, str
, ctx
->cert
);
1365 * ssl_create_cipher_list may return an empty stack if it was unable to
1366 * find a cipher matching the given rule string (for example if the rule
1367 * string specifies a cipher which has been disabled). This is not an
1368 * error as far as ssl_create_cipher_list is concerned, and hence
1369 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
1373 else if (sk_SSL_CIPHER_num(sk
) == 0) {
1374 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
1380 /** specify the ciphers to be used by the SSL */
1381 int SSL_set_cipher_list(SSL
*s
, const char *str
)
1383 STACK_OF(SSL_CIPHER
) *sk
;
1385 sk
= ssl_create_cipher_list(s
->ctx
->method
, &s
->cipher_list
,
1386 &s
->cipher_list_by_id
, str
, s
->cert
);
1387 /* see comment in SSL_CTX_set_cipher_list */
1390 else if (sk_SSL_CIPHER_num(sk
) == 0) {
1391 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
1397 /* works well for SSLv2, not so good for SSLv3 */
1398 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int len
)
1401 STACK_OF(SSL_CIPHER
) *sk
;
1405 if ((s
->session
== NULL
) || (s
->session
->ciphers
== NULL
) || (len
< 2))
1409 sk
= s
->session
->ciphers
;
1411 if (sk_SSL_CIPHER_num(sk
) == 0)
1414 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); i
++) {
1417 c
= sk_SSL_CIPHER_value(sk
, i
);
1418 n
= strlen(c
->name
);
1434 int ssl_cipher_list_to_bytes(SSL
*s
, STACK_OF(SSL_CIPHER
) *sk
,
1436 int (*put_cb
) (const SSL_CIPHER
*,
1443 int empty_reneg_info_scsv
= !s
->renegotiate
;
1444 /* Set disabled masks for this session */
1445 ssl_set_client_disabled(s
);
1451 put_cb
= s
->method
->put_cipher_by_char
;
1453 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); i
++) {
1454 c
= sk_SSL_CIPHER_value(sk
, i
);
1455 /* Skip disabled ciphers */
1456 if (c
->algorithm_ssl
& ct
->mask_ssl
||
1457 c
->algorithm_mkey
& ct
->mask_k
|| c
->algorithm_auth
& ct
->mask_a
)
1459 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
1460 if (c
->id
== SSL3_CK_SCSV
) {
1461 if (!empty_reneg_info_scsv
)
1464 empty_reneg_info_scsv
= 0;
1471 * If p == q, no ciphers; caller indicates an error. Otherwise, add
1475 if (empty_reneg_info_scsv
) {
1476 static SSL_CIPHER scsv
= {
1477 0, NULL
, SSL3_CK_SCSV
, 0, 0, 0, 0, 0, 0, 0, 0, 0
1479 j
= put_cb(&scsv
, p
);
1481 #ifdef OPENSSL_RI_DEBUG
1483 "TLS_EMPTY_RENEGOTIATION_INFO_SCSV sent by client\n");
1486 if (s
->mode
& SSL_MODE_SEND_FALLBACK_SCSV
) {
1487 static SSL_CIPHER scsv
= {
1488 0, NULL
, SSL3_CK_FALLBACK_SCSV
, 0, 0, 0, 0, 0, 0, 0, 0, 0
1490 j
= put_cb(&scsv
, p
);
1498 STACK_OF(SSL_CIPHER
) *ssl_bytes_to_cipher_list(SSL
*s
, unsigned char *p
,
1500 STACK_OF(SSL_CIPHER
) **skp
)
1502 const SSL_CIPHER
*c
;
1503 STACK_OF(SSL_CIPHER
) *sk
;
1507 s
->s3
->send_connection_binding
= 0;
1509 n
= ssl_put_cipher_by_char(s
, NULL
, NULL
);
1510 if (n
== 0 || (num
% n
) != 0) {
1511 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,
1512 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
1515 if ((skp
== NULL
) || (*skp
== NULL
)) {
1516 sk
= sk_SSL_CIPHER_new_null(); /* change perhaps later */
1518 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
1523 sk_SSL_CIPHER_zero(sk
);
1526 if (s
->cert
->ciphers_raw
)
1527 OPENSSL_free(s
->cert
->ciphers_raw
);
1528 s
->cert
->ciphers_raw
= BUF_memdup(p
, num
);
1529 if (s
->cert
->ciphers_raw
== NULL
) {
1530 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
1533 s
->cert
->ciphers_rawlen
= (size_t)num
;
1535 for (i
= 0; i
< num
; i
+= n
) {
1536 /* Check for TLS_EMPTY_RENEGOTIATION_INFO_SCSV */
1537 if (s
->s3
&& (n
!= 3 || !p
[0]) &&
1538 (p
[n
- 2] == ((SSL3_CK_SCSV
>> 8) & 0xff)) &&
1539 (p
[n
- 1] == (SSL3_CK_SCSV
& 0xff))) {
1540 /* SCSV fatal if renegotiating */
1541 if (s
->renegotiate
) {
1542 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,
1543 SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING
);
1544 ssl3_send_alert(s
, SSL3_AL_FATAL
, SSL_AD_HANDSHAKE_FAILURE
);
1547 s
->s3
->send_connection_binding
= 1;
1549 #ifdef OPENSSL_RI_DEBUG
1550 fprintf(stderr
, "SCSV received by server\n");
1555 /* Check for TLS_FALLBACK_SCSV */
1556 if ((n
!= 3 || !p
[0]) &&
1557 (p
[n
- 2] == ((SSL3_CK_FALLBACK_SCSV
>> 8) & 0xff)) &&
1558 (p
[n
- 1] == (SSL3_CK_FALLBACK_SCSV
& 0xff))) {
1560 * The SCSV indicates that the client previously tried a higher
1561 * version. Fail if the current version is an unexpected
1564 if (!SSL_ctrl(s
, SSL_CTRL_CHECK_PROTO_VERSION
, 0, NULL
)) {
1565 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,
1566 SSL_R_INAPPROPRIATE_FALLBACK
);
1568 ssl3_send_alert(s
, SSL3_AL_FATAL
,
1569 SSL_AD_INAPPROPRIATE_FALLBACK
);
1576 c
= ssl_get_cipher_by_char(s
, p
);
1579 if (!sk_SSL_CIPHER_push(sk
, c
)) {
1580 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
1590 if ((skp
== NULL
) || (*skp
== NULL
))
1591 sk_SSL_CIPHER_free(sk
);
1595 #ifndef OPENSSL_NO_TLSEXT
1596 /** return a servername extension value if provided in Client Hello, or NULL.
1597 * So far, only host_name types are defined (RFC 3546).
1600 const char *SSL_get_servername(const SSL
*s
, const int type
)
1602 if (type
!= TLSEXT_NAMETYPE_host_name
)
1605 return s
->session
&& !s
->tlsext_hostname
?
1606 s
->session
->tlsext_hostname
: s
->tlsext_hostname
;
1609 int SSL_get_servername_type(const SSL
*s
)
1612 && (!s
->tlsext_hostname
? s
->session
->
1613 tlsext_hostname
: s
->tlsext_hostname
))
1614 return TLSEXT_NAMETYPE_host_name
;
1619 * SSL_select_next_proto implements the standard protocol selection. It is
1620 * expected that this function is called from the callback set by
1621 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
1622 * vector of 8-bit, length prefixed byte strings. The length byte itself is
1623 * not included in the length. A byte string of length 0 is invalid. No byte
1624 * string may be truncated. The current, but experimental algorithm for
1625 * selecting the protocol is: 1) If the server doesn't support NPN then this
1626 * is indicated to the callback. In this case, the client application has to
1627 * abort the connection or have a default application level protocol. 2) If
1628 * the server supports NPN, but advertises an empty list then the client
1629 * selects the first protcol in its list, but indicates via the API that this
1630 * fallback case was enacted. 3) Otherwise, the client finds the first
1631 * protocol in the server's list that it supports and selects this protocol.
1632 * This is because it's assumed that the server has better information about
1633 * which protocol a client should use. 4) If the client doesn't support any
1634 * of the server's advertised protocols, then this is treated the same as
1635 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
1636 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1638 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
1639 const unsigned char *server
,
1640 unsigned int server_len
,
1641 const unsigned char *client
,
1642 unsigned int client_len
)
1645 const unsigned char *result
;
1646 int status
= OPENSSL_NPN_UNSUPPORTED
;
1649 * For each protocol in server preference order, see if we support it.
1651 for (i
= 0; i
< server_len
;) {
1652 for (j
= 0; j
< client_len
;) {
1653 if (server
[i
] == client
[j
] &&
1654 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
1655 /* We found a match */
1656 result
= &server
[i
];
1657 status
= OPENSSL_NPN_NEGOTIATED
;
1667 /* There's no overlap between our protocols and the server's list. */
1669 status
= OPENSSL_NPN_NO_OVERLAP
;
1672 *out
= (unsigned char *)result
+ 1;
1673 *outlen
= result
[0];
1677 # ifndef OPENSSL_NO_NEXTPROTONEG
1679 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
1680 * client's requested protocol for this connection and returns 0. If the
1681 * client didn't request any protocol, then *data is set to NULL. Note that
1682 * the client can request any protocol it chooses. The value returned from
1683 * this function need not be a member of the list of supported protocols
1684 * provided by the callback.
1686 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
1689 *data
= s
->next_proto_negotiated
;
1693 *len
= s
->next_proto_negotiated_len
;
1698 * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when
1699 * a TLS server needs a list of supported protocols for Next Protocol
1700 * Negotiation. The returned list must be in wire format. The list is
1701 * returned by setting |out| to point to it and |outlen| to its length. This
1702 * memory will not be modified, but one should assume that the SSL* keeps a
1703 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
1704 * wishes to advertise. Otherwise, no such extension will be included in the
1707 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX
*ctx
,
1708 int (*cb
) (SSL
*ssl
,
1711 unsigned int *outlen
,
1712 void *arg
), void *arg
)
1714 ctx
->next_protos_advertised_cb
= cb
;
1715 ctx
->next_protos_advertised_cb_arg
= arg
;
1719 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1720 * client needs to select a protocol from the server's provided list. |out|
1721 * must be set to point to the selected protocol (which may be within |in|).
1722 * The length of the protocol name must be written into |outlen|. The
1723 * server's advertised protocols are provided in |in| and |inlen|. The
1724 * callback can assume that |in| is syntactically valid. The client must
1725 * select a protocol. It is fatal to the connection if this callback returns
1726 * a value other than SSL_TLSEXT_ERR_OK.
1728 void SSL_CTX_set_next_proto_select_cb(SSL_CTX
*ctx
,
1729 int (*cb
) (SSL
*s
, unsigned char **out
,
1730 unsigned char *outlen
,
1731 const unsigned char *in
,
1733 void *arg
), void *arg
)
1735 ctx
->next_proto_select_cb
= cb
;
1736 ctx
->next_proto_select_cb_arg
= arg
;
1741 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
1742 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1743 * length-prefixed strings). Returns 0 on success.
1745 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
1746 unsigned protos_len
)
1748 if (ctx
->alpn_client_proto_list
)
1749 OPENSSL_free(ctx
->alpn_client_proto_list
);
1751 ctx
->alpn_client_proto_list
= OPENSSL_malloc(protos_len
);
1752 if (!ctx
->alpn_client_proto_list
)
1754 memcpy(ctx
->alpn_client_proto_list
, protos
, protos_len
);
1755 ctx
->alpn_client_proto_list_len
= protos_len
;
1761 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
1762 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1763 * length-prefixed strings). Returns 0 on success.
1765 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
1766 unsigned protos_len
)
1768 if (ssl
->alpn_client_proto_list
)
1769 OPENSSL_free(ssl
->alpn_client_proto_list
);
1771 ssl
->alpn_client_proto_list
= OPENSSL_malloc(protos_len
);
1772 if (!ssl
->alpn_client_proto_list
)
1774 memcpy(ssl
->alpn_client_proto_list
, protos
, protos_len
);
1775 ssl
->alpn_client_proto_list_len
= protos_len
;
1781 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
1782 * called during ClientHello processing in order to select an ALPN protocol
1783 * from the client's list of offered protocols.
1785 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
1786 int (*cb
) (SSL
*ssl
,
1787 const unsigned char **out
,
1788 unsigned char *outlen
,
1789 const unsigned char *in
,
1791 void *arg
), void *arg
)
1793 ctx
->alpn_select_cb
= cb
;
1794 ctx
->alpn_select_cb_arg
= arg
;
1798 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from
1799 * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name
1800 * (not including the leading length-prefix byte). If the server didn't
1801 * respond with a negotiated protocol then |*len| will be zero.
1803 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
1808 *data
= ssl
->s3
->alpn_selected
;
1812 *len
= ssl
->s3
->alpn_selected_len
;
1815 #endif /* !OPENSSL_NO_TLSEXT */
1817 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
1818 const char *label
, size_t llen
,
1819 const unsigned char *p
, size_t plen
,
1822 if (s
->version
< TLS1_VERSION
)
1825 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
1830 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
1835 ((unsigned int)a
->session_id
[0]) |
1836 ((unsigned int)a
->session_id
[1] << 8L) |
1837 ((unsigned long)a
->session_id
[2] << 16L) |
1838 ((unsigned long)a
->session_id
[3] << 24L);
1843 * NB: If this function (or indeed the hash function which uses a sort of
1844 * coarser function than this one) is changed, ensure
1845 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
1846 * being able to construct an SSL_SESSION that will collide with any existing
1847 * session with a matching session ID.
1849 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
1851 if (a
->ssl_version
!= b
->ssl_version
)
1853 if (a
->session_id_length
!= b
->session_id_length
)
1855 return (memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
));
1859 * These wrapper functions should remain rather than redeclaring
1860 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1861 * variable. The reason is that the functions aren't static, they're exposed
1864 static IMPLEMENT_LHASH_HASH_FN(ssl_session
, SSL_SESSION
)
1865 static IMPLEMENT_LHASH_COMP_FN(ssl_session
, SSL_SESSION
)
1867 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
1869 SSL_CTX
*ret
= NULL
;
1872 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_NULL_SSL_METHOD_PASSED
);
1876 if (FIPS_mode() && (meth
->version
< TLS1_VERSION
)) {
1877 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE
);
1882 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
1883 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
1886 ret
= (SSL_CTX
*)OPENSSL_malloc(sizeof(SSL_CTX
));
1890 memset(ret
, 0, sizeof(SSL_CTX
));
1894 ret
->cert_store
= NULL
;
1895 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
1896 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
1897 ret
->session_cache_head
= NULL
;
1898 ret
->session_cache_tail
= NULL
;
1900 /* We take the system default */
1901 ret
->session_timeout
= meth
->get_timeout();
1903 ret
->new_session_cb
= 0;
1904 ret
->remove_session_cb
= 0;
1905 ret
->get_session_cb
= 0;
1906 ret
->generate_session_id
= 0;
1908 memset((char *)&ret
->stats
, 0, sizeof(ret
->stats
));
1910 ret
->references
= 1;
1911 ret
->quiet_shutdown
= 0;
1913 /* ret->cipher=NULL;*/
1915 ret->s2->challenge=NULL;
1916 ret->master_key=NULL;
1918 ret->s2->conn_id=NULL; */
1920 ret
->info_callback
= NULL
;
1922 ret
->app_verify_callback
= 0;
1923 ret
->app_verify_arg
= NULL
;
1925 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
1926 ret
->read_ahead
= 0;
1927 ret
->msg_callback
= 0;
1928 ret
->msg_callback_arg
= NULL
;
1929 ret
->verify_mode
= SSL_VERIFY_NONE
;
1931 ret
->verify_depth
= -1; /* Don't impose a limit (but x509_lu.c does) */
1933 ret
->sid_ctx_length
= 0;
1934 ret
->default_verify_callback
= NULL
;
1935 if ((ret
->cert
= ssl_cert_new()) == NULL
)
1938 ret
->default_passwd_callback
= 0;
1939 ret
->default_passwd_callback_userdata
= NULL
;
1940 ret
->client_cert_cb
= 0;
1941 ret
->app_gen_cookie_cb
= 0;
1942 ret
->app_verify_cookie_cb
= 0;
1944 ret
->sessions
= lh_SSL_SESSION_new();
1945 if (ret
->sessions
== NULL
)
1947 ret
->cert_store
= X509_STORE_new();
1948 if (ret
->cert_store
== NULL
)
1951 ssl_create_cipher_list(ret
->method
,
1952 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
1954 SSL2_VERSION
? "SSLv2" : SSL_DEFAULT_CIPHER_LIST
,
1956 if (ret
->cipher_list
== NULL
|| sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
1957 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
1961 ret
->param
= X509_VERIFY_PARAM_new();
1965 if ((ret
->rsa_md5
= EVP_get_digestbyname("ssl2-md5")) == NULL
) {
1966 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES
);
1969 if ((ret
->md5
= EVP_get_digestbyname("ssl3-md5")) == NULL
) {
1970 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
1973 if ((ret
->sha1
= EVP_get_digestbyname("ssl3-sha1")) == NULL
) {
1974 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
1978 if ((ret
->client_CA
= sk_X509_NAME_new_null()) == NULL
)
1981 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
);
1983 ret
->extra_certs
= NULL
;
1984 /* No compression for DTLS */
1985 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
1986 ret
->comp_methods
= SSL_COMP_get_compression_methods();
1988 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
1990 #ifndef OPENSSL_NO_TLSEXT
1991 ret
->tlsext_servername_callback
= 0;
1992 ret
->tlsext_servername_arg
= NULL
;
1993 /* Setup RFC4507 ticket keys */
1994 if ((RAND_pseudo_bytes(ret
->tlsext_tick_key_name
, 16) <= 0)
1995 || (RAND_bytes(ret
->tlsext_tick_hmac_key
, 16) <= 0)
1996 || (RAND_bytes(ret
->tlsext_tick_aes_key
, 16) <= 0))
1997 ret
->options
|= SSL_OP_NO_TICKET
;
1999 ret
->tlsext_status_cb
= 0;
2000 ret
->tlsext_status_arg
= NULL
;
2002 # ifndef OPENSSL_NO_NEXTPROTONEG
2003 ret
->next_protos_advertised_cb
= 0;
2004 ret
->next_proto_select_cb
= 0;
2007 #ifndef OPENSSL_NO_PSK
2008 ret
->psk_identity_hint
= NULL
;
2009 ret
->psk_client_callback
= NULL
;
2010 ret
->psk_server_callback
= NULL
;
2012 #ifndef OPENSSL_NO_SRP
2013 SSL_CTX_SRP_CTX_init(ret
);
2015 #ifndef OPENSSL_NO_BUF_FREELISTS
2016 ret
->freelist_max_len
= SSL_MAX_BUF_FREELIST_LEN_DEFAULT
;
2017 ret
->rbuf_freelist
= OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST
));
2018 if (!ret
->rbuf_freelist
)
2020 ret
->rbuf_freelist
->chunklen
= 0;
2021 ret
->rbuf_freelist
->len
= 0;
2022 ret
->rbuf_freelist
->head
= NULL
;
2023 ret
->wbuf_freelist
= OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST
));
2024 if (!ret
->wbuf_freelist
) {
2025 OPENSSL_free(ret
->rbuf_freelist
);
2028 ret
->wbuf_freelist
->chunklen
= 0;
2029 ret
->wbuf_freelist
->len
= 0;
2030 ret
->wbuf_freelist
->head
= NULL
;
2032 #ifndef OPENSSL_NO_ENGINE
2033 ret
->client_cert_engine
= NULL
;
2034 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2035 # define eng_strx(x) #x
2036 # define eng_str(x) eng_strx(x)
2037 /* Use specific client engine automatically... ignore errors */
2040 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2043 ENGINE_load_builtin_engines();
2044 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2046 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
2052 * Default is to connect to non-RI servers. When RI is more widely
2053 * deployed might change this.
2055 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
2058 * Disable SSLv2 by default, callers that want to enable SSLv2 will have to
2059 * explicitly clear this option via either of SSL_CTX_clear_options() or
2060 * SSL_clear_options().
2062 ret
->options
|= SSL_OP_NO_SSLv2
;
2066 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
2074 static void SSL_COMP_free(SSL_COMP
*comp
)
2080 #ifndef OPENSSL_NO_BUF_FREELISTS
2081 static void ssl_buf_freelist_free(SSL3_BUF_FREELIST
*list
)
2083 SSL3_BUF_FREELIST_ENTRY
*ent
, *next
;
2084 for (ent
= list
->head
; ent
; ent
= next
) {
2092 void SSL_CTX_free(SSL_CTX
*a
)
2099 i
= CRYPTO_add(&a
->references
, -1, CRYPTO_LOCK_SSL_CTX
);
2101 REF_PRINT("SSL_CTX", a
);
2107 fprintf(stderr
, "SSL_CTX_free, bad reference count\n");
2113 X509_VERIFY_PARAM_free(a
->param
);
2116 * Free internal session cache. However: the remove_cb() may reference
2117 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2118 * after the sessions were flushed.
2119 * As the ex_data handling routines might also touch the session cache,
2120 * the most secure solution seems to be: empty (flush) the cache, then
2121 * free ex_data, then finally free the cache.
2122 * (See ticket [openssl.org #212].)
2124 if (a
->sessions
!= NULL
)
2125 SSL_CTX_flush_sessions(a
, 0);
2127 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
2129 if (a
->sessions
!= NULL
)
2130 lh_SSL_SESSION_free(a
->sessions
);
2132 if (a
->cert_store
!= NULL
)
2133 X509_STORE_free(a
->cert_store
);
2134 if (a
->cipher_list
!= NULL
)
2135 sk_SSL_CIPHER_free(a
->cipher_list
);
2136 if (a
->cipher_list_by_id
!= NULL
)
2137 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
2138 if (a
->cert
!= NULL
)
2139 ssl_cert_free(a
->cert
);
2140 if (a
->client_CA
!= NULL
)
2141 sk_X509_NAME_pop_free(a
->client_CA
, X509_NAME_free
);
2142 if (a
->extra_certs
!= NULL
)
2143 sk_X509_pop_free(a
->extra_certs
, X509_free
);
2144 #if 0 /* This should never be done, since it
2145 * removes a global database */
2146 if (a
->comp_methods
!= NULL
)
2147 sk_SSL_COMP_pop_free(a
->comp_methods
, SSL_COMP_free
);
2149 a
->comp_methods
= NULL
;
2152 #ifndef OPENSSL_NO_SRTP
2153 if (a
->srtp_profiles
)
2154 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
2157 #ifndef OPENSSL_NO_PSK
2158 if (a
->psk_identity_hint
)
2159 OPENSSL_free(a
->psk_identity_hint
);
2161 #ifndef OPENSSL_NO_SRP
2162 SSL_CTX_SRP_CTX_free(a
);
2164 #ifndef OPENSSL_NO_ENGINE
2165 if (a
->client_cert_engine
)
2166 ENGINE_finish(a
->client_cert_engine
);
2169 #ifndef OPENSSL_NO_BUF_FREELISTS
2170 if (a
->wbuf_freelist
)
2171 ssl_buf_freelist_free(a
->wbuf_freelist
);
2172 if (a
->rbuf_freelist
)
2173 ssl_buf_freelist_free(a
->rbuf_freelist
);
2175 #ifndef OPENSSL_NO_TLSEXT
2176 # ifndef OPENSSL_NO_EC
2177 if (a
->tlsext_ecpointformatlist
)
2178 OPENSSL_free(a
->tlsext_ecpointformatlist
);
2179 if (a
->tlsext_ellipticcurvelist
)
2180 OPENSSL_free(a
->tlsext_ellipticcurvelist
);
2181 # endif /* OPENSSL_NO_EC */
2182 if (a
->alpn_client_proto_list
!= NULL
)
2183 OPENSSL_free(a
->alpn_client_proto_list
);
2189 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
2191 ctx
->default_passwd_callback
= cb
;
2194 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
2196 ctx
->default_passwd_callback_userdata
= u
;
2199 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
2200 int (*cb
) (X509_STORE_CTX
*, void *),
2203 ctx
->app_verify_callback
= cb
;
2204 ctx
->app_verify_arg
= arg
;
2207 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
2208 int (*cb
) (int, X509_STORE_CTX
*))
2210 ctx
->verify_mode
= mode
;
2211 ctx
->default_verify_callback
= cb
;
2214 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
2216 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
2219 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
),
2222 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
2225 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
2227 ssl_cert_set_cert_cb(s
->cert
, cb
, arg
);
2230 void ssl_set_cert_masks(CERT
*c
, const SSL_CIPHER
*cipher
)
2233 int rsa_enc
, rsa_tmp
, rsa_sign
, dh_tmp
, dh_rsa
, dh_dsa
, dsa_sign
;
2234 int rsa_enc_export
, dh_rsa_export
, dh_dsa_export
;
2235 int rsa_tmp_export
, dh_tmp_export
, kl
;
2236 unsigned long mask_k
, mask_a
, emask_k
, emask_a
;
2237 #ifndef OPENSSL_NO_ECDSA
2238 int have_ecc_cert
, ecdsa_ok
, ecc_pkey_size
;
2240 #ifndef OPENSSL_NO_ECDH
2241 int have_ecdh_tmp
, ecdh_ok
;
2243 #ifndef OPENSSL_NO_EC
2245 EVP_PKEY
*ecc_pkey
= NULL
;
2246 int signature_nid
= 0, pk_nid
= 0, md_nid
= 0;
2251 kl
= SSL_C_EXPORT_PKEYLENGTH(cipher
);
2253 #ifndef OPENSSL_NO_RSA
2254 rsa_tmp
= (c
->rsa_tmp
!= NULL
|| c
->rsa_tmp_cb
!= NULL
);
2255 rsa_tmp_export
= (c
->rsa_tmp_cb
!= NULL
||
2256 (rsa_tmp
&& RSA_size(c
->rsa_tmp
) * 8 <= kl
));
2258 rsa_tmp
= rsa_tmp_export
= 0;
2260 #ifndef OPENSSL_NO_DH
2261 dh_tmp
= (c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
);
2262 dh_tmp_export
= (c
->dh_tmp_cb
!= NULL
||
2263 (dh_tmp
&& DH_size(c
->dh_tmp
) * 8 <= kl
));
2265 dh_tmp
= dh_tmp_export
= 0;
2268 #ifndef OPENSSL_NO_ECDH
2269 have_ecdh_tmp
= (c
->ecdh_tmp
|| c
->ecdh_tmp_cb
|| c
->ecdh_tmp_auto
);
2271 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_ENC
]);
2272 rsa_enc
= cpk
->valid_flags
& CERT_PKEY_VALID
;
2273 rsa_enc_export
= (rsa_enc
&& EVP_PKEY_size(cpk
->privatekey
) * 8 <= kl
);
2274 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_SIGN
]);
2275 rsa_sign
= cpk
->valid_flags
& CERT_PKEY_SIGN
;
2276 cpk
= &(c
->pkeys
[SSL_PKEY_DSA_SIGN
]);
2277 dsa_sign
= cpk
->valid_flags
& CERT_PKEY_SIGN
;
2278 cpk
= &(c
->pkeys
[SSL_PKEY_DH_RSA
]);
2279 dh_rsa
= cpk
->valid_flags
& CERT_PKEY_VALID
;
2280 dh_rsa_export
= (dh_rsa
&& EVP_PKEY_size(cpk
->privatekey
) * 8 <= kl
);
2281 cpk
= &(c
->pkeys
[SSL_PKEY_DH_DSA
]);
2282 /* FIX THIS EAY EAY EAY */
2283 dh_dsa
= cpk
->valid_flags
& CERT_PKEY_VALID
;
2284 dh_dsa_export
= (dh_dsa
&& EVP_PKEY_size(cpk
->privatekey
) * 8 <= kl
);
2285 cpk
= &(c
->pkeys
[SSL_PKEY_ECC
]);
2286 #ifndef OPENSSL_NO_EC
2287 have_ecc_cert
= cpk
->valid_flags
& CERT_PKEY_VALID
;
2296 "rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2297 rsa_tmp
, rsa_tmp_export
, dh_tmp
, have_ecdh_tmp
, rsa_enc
,
2298 rsa_enc_export
, rsa_sign
, dsa_sign
, dh_rsa
, dh_dsa
);
2301 cpk
= &(c
->pkeys
[SSL_PKEY_GOST01
]);
2302 if (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
) {
2303 mask_k
|= SSL_kGOST
;
2304 mask_a
|= SSL_aGOST01
;
2306 cpk
= &(c
->pkeys
[SSL_PKEY_GOST94
]);
2307 if (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
) {
2308 mask_k
|= SSL_kGOST
;
2309 mask_a
|= SSL_aGOST94
;
2312 if (rsa_enc
|| (rsa_tmp
&& rsa_sign
))
2314 if (rsa_enc_export
|| (rsa_tmp_export
&& (rsa_sign
|| rsa_enc
)))
2315 emask_k
|= SSL_kRSA
;
2318 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
2319 if ((dh_tmp
|| dh_rsa
|| dh_dsa
) && (rsa_enc
|| rsa_sign
|| dsa_sign
))
2321 if ((dh_tmp_export
|| dh_rsa_export
|| dh_dsa_export
) &&
2322 (rsa_enc
|| rsa_sign
|| dsa_sign
))
2323 emask_k
|= SSL_kEDH
;
2327 emask_k
|= SSL_kEDH
;
2335 emask_k
|= SSL_kDHr
;
2340 emask_k
|= SSL_kDHd
;
2342 if (mask_k
& (SSL_kDHr
| SSL_kDHd
))
2345 if (rsa_enc
|| rsa_sign
) {
2347 emask_a
|= SSL_aRSA
;
2352 emask_a
|= SSL_aDSS
;
2355 mask_a
|= SSL_aNULL
;
2356 emask_a
|= SSL_aNULL
;
2358 #ifndef OPENSSL_NO_KRB5
2359 mask_k
|= SSL_kKRB5
;
2360 mask_a
|= SSL_aKRB5
;
2361 emask_k
|= SSL_kKRB5
;
2362 emask_a
|= SSL_aKRB5
;
2366 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
2367 * depending on the key usage extension.
2369 #ifndef OPENSSL_NO_EC
2370 if (have_ecc_cert
) {
2371 cpk
= &c
->pkeys
[SSL_PKEY_ECC
];
2373 /* This call populates extension flags (ex_flags) */
2374 X509_check_purpose(x
, -1, 0);
2375 # ifndef OPENSSL_NO_ECDH
2376 ecdh_ok
= (x
->ex_flags
& EXFLAG_KUSAGE
) ?
2377 (x
->ex_kusage
& X509v3_KU_KEY_AGREEMENT
) : 1;
2379 ecdsa_ok
= (x
->ex_flags
& EXFLAG_KUSAGE
) ?
2380 (x
->ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
) : 1;
2381 if (!(cpk
->valid_flags
& CERT_PKEY_SIGN
))
2383 ecc_pkey
= X509_get_pubkey(x
);
2384 ecc_pkey_size
= (ecc_pkey
!= NULL
) ? EVP_PKEY_bits(ecc_pkey
) : 0;
2385 EVP_PKEY_free(ecc_pkey
);
2386 if ((x
->sig_alg
) && (x
->sig_alg
->algorithm
)) {
2387 signature_nid
= OBJ_obj2nid(x
->sig_alg
->algorithm
);
2388 OBJ_find_sigid_algs(signature_nid
, &md_nid
, &pk_nid
);
2390 # ifndef OPENSSL_NO_ECDH
2393 if (pk_nid
== NID_rsaEncryption
|| pk_nid
== NID_rsa
) {
2394 mask_k
|= SSL_kECDHr
;
2395 mask_a
|= SSL_aECDH
;
2396 if (ecc_pkey_size
<= 163) {
2397 emask_k
|= SSL_kECDHr
;
2398 emask_a
|= SSL_aECDH
;
2402 if (pk_nid
== NID_X9_62_id_ecPublicKey
) {
2403 mask_k
|= SSL_kECDHe
;
2404 mask_a
|= SSL_aECDH
;
2405 if (ecc_pkey_size
<= 163) {
2406 emask_k
|= SSL_kECDHe
;
2407 emask_a
|= SSL_aECDH
;
2412 # ifndef OPENSSL_NO_ECDSA
2414 mask_a
|= SSL_aECDSA
;
2415 emask_a
|= SSL_aECDSA
;
2421 #ifndef OPENSSL_NO_ECDH
2422 if (have_ecdh_tmp
) {
2423 mask_k
|= SSL_kEECDH
;
2424 emask_k
|= SSL_kEECDH
;
2428 #ifndef OPENSSL_NO_PSK
2431 emask_k
|= SSL_kPSK
;
2432 emask_a
|= SSL_aPSK
;
2437 c
->export_mask_k
= emask_k
;
2438 c
->export_mask_a
= emask_a
;
2442 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2443 #define ku_reject(x, usage) \
2444 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2446 #ifndef OPENSSL_NO_EC
2448 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
2450 unsigned long alg_k
, alg_a
;
2451 EVP_PKEY
*pkey
= NULL
;
2453 int signature_nid
= 0, md_nid
= 0, pk_nid
= 0;
2454 const SSL_CIPHER
*cs
= s
->s3
->tmp
.new_cipher
;
2456 alg_k
= cs
->algorithm_mkey
;
2457 alg_a
= cs
->algorithm_auth
;
2459 if (SSL_C_IS_EXPORT(cs
)) {
2460 /* ECDH key length in export ciphers must be <= 163 bits */
2461 pkey
= X509_get_pubkey(x
);
2464 keysize
= EVP_PKEY_bits(pkey
);
2465 EVP_PKEY_free(pkey
);
2470 /* This call populates the ex_flags field correctly */
2471 X509_check_purpose(x
, -1, 0);
2472 if ((x
->sig_alg
) && (x
->sig_alg
->algorithm
)) {
2473 signature_nid
= OBJ_obj2nid(x
->sig_alg
->algorithm
);
2474 OBJ_find_sigid_algs(signature_nid
, &md_nid
, &pk_nid
);
2476 if (alg_k
& SSL_kECDHe
|| alg_k
& SSL_kECDHr
) {
2477 /* key usage, if present, must allow key agreement */
2478 if (ku_reject(x
, X509v3_KU_KEY_AGREEMENT
)) {
2479 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2480 SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT
);
2483 if ((alg_k
& SSL_kECDHe
) && TLS1_get_version(s
) < TLS1_2_VERSION
) {
2484 /* signature alg must be ECDSA */
2485 if (pk_nid
!= NID_X9_62_id_ecPublicKey
) {
2486 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2487 SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE
);
2491 if ((alg_k
& SSL_kECDHr
) && TLS1_get_version(s
) < TLS1_2_VERSION
) {
2492 /* signature alg must be RSA */
2494 if (pk_nid
!= NID_rsaEncryption
&& pk_nid
!= NID_rsa
) {
2495 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2496 SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE
);
2501 if (alg_a
& SSL_aECDSA
) {
2502 /* key usage, if present, must allow signing */
2503 if (ku_reject(x
, X509v3_KU_DIGITAL_SIGNATURE
)) {
2504 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2505 SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
2510 return 1; /* all checks are ok */
2515 static int ssl_get_server_cert_index(const SSL
*s
)
2518 idx
= ssl_cipher_get_cert_index(s
->s3
->tmp
.new_cipher
);
2519 if (idx
== SSL_PKEY_RSA_ENC
&& !s
->cert
->pkeys
[SSL_PKEY_RSA_ENC
].x509
)
2520 idx
= SSL_PKEY_RSA_SIGN
;
2522 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX
, ERR_R_INTERNAL_ERROR
);
2526 CERT_PKEY
*ssl_get_server_send_pkey(const SSL
*s
)
2532 if (!s
->s3
|| !s
->s3
->tmp
.new_cipher
)
2534 ssl_set_cert_masks(c
, s
->s3
->tmp
.new_cipher
);
2536 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2538 * Broken protocol test: return last used certificate: which may mismatch
2541 if (c
->cert_flags
& SSL_CERT_FLAG_BROKEN_PROTOCOL
)
2545 i
= ssl_get_server_cert_index(s
);
2547 /* This may or may not be an error. */
2552 return &c
->pkeys
[i
];
2555 EVP_PKEY
*ssl_get_sign_pkey(SSL
*s
, const SSL_CIPHER
*cipher
,
2558 unsigned long alg_a
;
2562 alg_a
= cipher
->algorithm_auth
;
2565 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2567 * Broken protocol test: use last key: which may mismatch the one
2570 if (c
->cert_flags
& SSL_CERT_FLAG_BROKEN_PROTOCOL
)
2571 idx
= c
->key
- c
->pkeys
;
2575 if ((alg_a
& SSL_aDSS
) &&
2576 (c
->pkeys
[SSL_PKEY_DSA_SIGN
].privatekey
!= NULL
))
2577 idx
= SSL_PKEY_DSA_SIGN
;
2578 else if (alg_a
& SSL_aRSA
) {
2579 if (c
->pkeys
[SSL_PKEY_RSA_SIGN
].privatekey
!= NULL
)
2580 idx
= SSL_PKEY_RSA_SIGN
;
2581 else if (c
->pkeys
[SSL_PKEY_RSA_ENC
].privatekey
!= NULL
)
2582 idx
= SSL_PKEY_RSA_ENC
;
2583 } else if ((alg_a
& SSL_aECDSA
) &&
2584 (c
->pkeys
[SSL_PKEY_ECC
].privatekey
!= NULL
))
2587 SSLerr(SSL_F_SSL_GET_SIGN_PKEY
, ERR_R_INTERNAL_ERROR
);
2591 *pmd
= c
->pkeys
[idx
].digest
;
2592 return c
->pkeys
[idx
].privatekey
;
2595 #ifndef OPENSSL_NO_TLSEXT
2596 int ssl_get_server_cert_serverinfo(SSL
*s
, const unsigned char **serverinfo
,
2597 size_t *serverinfo_length
)
2601 *serverinfo_length
= 0;
2604 i
= ssl_get_server_cert_index(s
);
2608 if (c
->pkeys
[i
].serverinfo
== NULL
)
2611 *serverinfo
= c
->pkeys
[i
].serverinfo
;
2612 *serverinfo_length
= c
->pkeys
[i
].serverinfo_length
;
2617 void ssl_update_cache(SSL
*s
, int mode
)
2622 * If the session_id_length is 0, we are not supposed to cache it, and it
2623 * would be rather hard to do anyway :-)
2625 if (s
->session
->session_id_length
== 0)
2628 i
= s
->session_ctx
->session_cache_mode
;
2629 if ((i
& mode
) && (!s
->hit
)
2630 && ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
)
2631 || SSL_CTX_add_session(s
->session_ctx
, s
->session
))
2632 && (s
->session_ctx
->new_session_cb
!= NULL
)) {
2633 CRYPTO_add(&s
->session
->references
, 1, CRYPTO_LOCK_SSL_SESSION
);
2634 if (!s
->session_ctx
->new_session_cb(s
, s
->session
))
2635 SSL_SESSION_free(s
->session
);
2638 /* auto flush every 255 connections */
2639 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
2640 if ((((mode
& SSL_SESS_CACHE_CLIENT
)
2641 ? s
->session_ctx
->stats
.sess_connect_good
2642 : s
->session_ctx
->stats
.sess_accept_good
) & 0xff) == 0xff) {
2643 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
2648 const SSL_METHOD
*SSL_CTX_get_ssl_method(SSL_CTX
*ctx
)
2653 const SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
2658 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
2663 if (s
->method
!= meth
) {
2664 if (s
->handshake_func
!= NULL
)
2665 conn
= (s
->handshake_func
== s
->method
->ssl_connect
);
2667 if (s
->method
->version
== meth
->version
)
2670 s
->method
->ssl_free(s
);
2672 ret
= s
->method
->ssl_new(s
);
2676 s
->handshake_func
= meth
->ssl_connect
;
2678 s
->handshake_func
= meth
->ssl_accept
;
2683 int SSL_get_error(const SSL
*s
, int i
)
2690 return (SSL_ERROR_NONE
);
2693 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
2694 * where we do encode the error
2696 if ((l
= ERR_peek_error()) != 0) {
2697 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
2698 return (SSL_ERROR_SYSCALL
);
2700 return (SSL_ERROR_SSL
);
2703 if ((i
< 0) && SSL_want_read(s
)) {
2704 bio
= SSL_get_rbio(s
);
2705 if (BIO_should_read(bio
))
2706 return (SSL_ERROR_WANT_READ
);
2707 else if (BIO_should_write(bio
))
2709 * This one doesn't make too much sense ... We never try to write
2710 * to the rbio, and an application program where rbio and wbio
2711 * are separate couldn't even know what it should wait for.
2712 * However if we ever set s->rwstate incorrectly (so that we have
2713 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
2714 * wbio *are* the same, this test works around that bug; so it
2715 * might be safer to keep it.
2717 return (SSL_ERROR_WANT_WRITE
);
2718 else if (BIO_should_io_special(bio
)) {
2719 reason
= BIO_get_retry_reason(bio
);
2720 if (reason
== BIO_RR_CONNECT
)
2721 return (SSL_ERROR_WANT_CONNECT
);
2722 else if (reason
== BIO_RR_ACCEPT
)
2723 return (SSL_ERROR_WANT_ACCEPT
);
2725 return (SSL_ERROR_SYSCALL
); /* unknown */
2729 if ((i
< 0) && SSL_want_write(s
)) {
2730 bio
= SSL_get_wbio(s
);
2731 if (BIO_should_write(bio
))
2732 return (SSL_ERROR_WANT_WRITE
);
2733 else if (BIO_should_read(bio
))
2735 * See above (SSL_want_read(s) with BIO_should_write(bio))
2737 return (SSL_ERROR_WANT_READ
);
2738 else if (BIO_should_io_special(bio
)) {
2739 reason
= BIO_get_retry_reason(bio
);
2740 if (reason
== BIO_RR_CONNECT
)
2741 return (SSL_ERROR_WANT_CONNECT
);
2742 else if (reason
== BIO_RR_ACCEPT
)
2743 return (SSL_ERROR_WANT_ACCEPT
);
2745 return (SSL_ERROR_SYSCALL
);
2748 if ((i
< 0) && SSL_want_x509_lookup(s
)) {
2749 return (SSL_ERROR_WANT_X509_LOOKUP
);
2753 if (s
->version
== SSL2_VERSION
) {
2754 /* assume it is the socket being closed */
2755 return (SSL_ERROR_ZERO_RETURN
);
2757 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
2758 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
2759 return (SSL_ERROR_ZERO_RETURN
);
2762 return (SSL_ERROR_SYSCALL
);
2765 int SSL_do_handshake(SSL
*s
)
2769 if (s
->handshake_func
== NULL
) {
2770 SSLerr(SSL_F_SSL_DO_HANDSHAKE
, SSL_R_CONNECTION_TYPE_NOT_SET
);
2774 s
->method
->ssl_renegotiate_check(s
);
2776 if (SSL_in_init(s
) || SSL_in_before(s
)) {
2777 ret
= s
->handshake_func(s
);
2783 * For the next 2 functions, SSL_clear() sets shutdown and so one of these
2784 * calls will reset it
2786 void SSL_set_accept_state(SSL
*s
)
2790 s
->state
= SSL_ST_ACCEPT
| SSL_ST_BEFORE
;
2791 s
->handshake_func
= s
->method
->ssl_accept
;
2792 /* clear the current cipher */
2793 ssl_clear_cipher_ctx(s
);
2794 ssl_clear_hash_ctx(&s
->read_hash
);
2795 ssl_clear_hash_ctx(&s
->write_hash
);
2798 void SSL_set_connect_state(SSL
*s
)
2802 s
->state
= SSL_ST_CONNECT
| SSL_ST_BEFORE
;
2803 s
->handshake_func
= s
->method
->ssl_connect
;
2804 /* clear the current cipher */
2805 ssl_clear_cipher_ctx(s
);
2806 ssl_clear_hash_ctx(&s
->read_hash
);
2807 ssl_clear_hash_ctx(&s
->write_hash
);
2810 int ssl_undefined_function(SSL
*s
)
2812 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2816 int ssl_undefined_void_function(void)
2818 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,
2819 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2823 int ssl_undefined_const_function(const SSL
*s
)
2825 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION
,
2826 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2830 SSL_METHOD
*ssl_bad_method(int ver
)
2832 SSLerr(SSL_F_SSL_BAD_METHOD
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2836 const char *SSL_get_version(const SSL
*s
)
2838 if (s
->version
== TLS1_2_VERSION
)
2840 else if (s
->version
== TLS1_1_VERSION
)
2842 else if (s
->version
== TLS1_VERSION
)
2844 else if (s
->version
== SSL3_VERSION
)
2846 else if (s
->version
== SSL2_VERSION
)
2848 else if (s
->version
== DTLS1_BAD_VER
)
2849 return ("DTLSv0.9");
2850 else if (s
->version
== DTLS1_VERSION
)
2852 else if (s
->version
== DTLS1_2_VERSION
)
2853 return ("DTLSv1.2");
2858 SSL
*SSL_dup(SSL
*s
)
2860 STACK_OF(X509_NAME
) *sk
;
2865 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
2868 ret
->version
= s
->version
;
2869 ret
->type
= s
->type
;
2870 ret
->method
= s
->method
;
2872 if (s
->session
!= NULL
) {
2873 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2874 SSL_copy_session_id(ret
, s
);
2877 * No session has been established yet, so we have to expect that
2878 * s->cert or ret->cert will be changed later -- they should not both
2879 * point to the same object, and thus we can't use
2880 * SSL_copy_session_id.
2883 ret
->method
->ssl_free(ret
);
2884 ret
->method
= s
->method
;
2885 ret
->method
->ssl_new(ret
);
2887 if (s
->cert
!= NULL
) {
2888 if (ret
->cert
!= NULL
) {
2889 ssl_cert_free(ret
->cert
);
2891 ret
->cert
= ssl_cert_dup(s
->cert
);
2892 if (ret
->cert
== NULL
)
2896 SSL_set_session_id_context(ret
, s
->sid_ctx
, s
->sid_ctx_length
);
2899 ret
->options
= s
->options
;
2900 ret
->mode
= s
->mode
;
2901 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
2902 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
2903 ret
->msg_callback
= s
->msg_callback
;
2904 ret
->msg_callback_arg
= s
->msg_callback_arg
;
2905 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
2906 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
2907 ret
->generate_session_id
= s
->generate_session_id
;
2909 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
2911 ret
->debug
= s
->debug
;
2913 /* copy app data, a little dangerous perhaps */
2914 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
2917 /* setup rbio, and wbio */
2918 if (s
->rbio
!= NULL
) {
2919 if (!BIO_dup_state(s
->rbio
, (char *)&ret
->rbio
))
2922 if (s
->wbio
!= NULL
) {
2923 if (s
->wbio
!= s
->rbio
) {
2924 if (!BIO_dup_state(s
->wbio
, (char *)&ret
->wbio
))
2927 ret
->wbio
= ret
->rbio
;
2929 ret
->rwstate
= s
->rwstate
;
2930 ret
->in_handshake
= s
->in_handshake
;
2931 ret
->handshake_func
= s
->handshake_func
;
2932 ret
->server
= s
->server
;
2933 ret
->renegotiate
= s
->renegotiate
;
2934 ret
->new_session
= s
->new_session
;
2935 ret
->quiet_shutdown
= s
->quiet_shutdown
;
2936 ret
->shutdown
= s
->shutdown
;
2937 ret
->state
= s
->state
; /* SSL_dup does not really work at any state,
2939 ret
->rstate
= s
->rstate
;
2940 ret
->init_num
= 0; /* would have to copy ret->init_buf,
2941 * ret->init_msg, ret->init_num,
2945 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
2947 /* dup the cipher_list and cipher_list_by_id stacks */
2948 if (s
->cipher_list
!= NULL
) {
2949 if ((ret
->cipher_list
= sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
2952 if (s
->cipher_list_by_id
!= NULL
)
2953 if ((ret
->cipher_list_by_id
= sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
2957 /* Dup the client_CA list */
2958 if (s
->client_CA
!= NULL
) {
2959 if ((sk
= sk_X509_NAME_dup(s
->client_CA
)) == NULL
)
2961 ret
->client_CA
= sk
;
2962 for (i
= 0; i
< sk_X509_NAME_num(sk
); i
++) {
2963 xn
= sk_X509_NAME_value(sk
, i
);
2964 if (sk_X509_NAME_set(sk
, i
, X509_NAME_dup(xn
)) == NULL
) {
2980 void ssl_clear_cipher_ctx(SSL
*s
)
2982 if (s
->enc_read_ctx
!= NULL
) {
2983 EVP_CIPHER_CTX_cleanup(s
->enc_read_ctx
);
2984 OPENSSL_free(s
->enc_read_ctx
);
2985 s
->enc_read_ctx
= NULL
;
2987 if (s
->enc_write_ctx
!= NULL
) {
2988 EVP_CIPHER_CTX_cleanup(s
->enc_write_ctx
);
2989 OPENSSL_free(s
->enc_write_ctx
);
2990 s
->enc_write_ctx
= NULL
;
2992 #ifndef OPENSSL_NO_COMP
2993 if (s
->expand
!= NULL
) {
2994 COMP_CTX_free(s
->expand
);
2997 if (s
->compress
!= NULL
) {
2998 COMP_CTX_free(s
->compress
);
3004 X509
*SSL_get_certificate(const SSL
*s
)
3006 if (s
->cert
!= NULL
)
3007 return (s
->cert
->key
->x509
);
3012 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
3014 if (s
->cert
!= NULL
)
3015 return (s
->cert
->key
->privatekey
);
3020 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
3022 if (ctx
->cert
!= NULL
)
3023 return ctx
->cert
->key
->x509
;
3028 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
3030 if (ctx
->cert
!= NULL
)
3031 return ctx
->cert
->key
->privatekey
;
3036 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
3038 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
3039 return (s
->session
->cipher
);
3043 #ifdef OPENSSL_NO_COMP
3044 const void *SSL_get_current_compression(SSL
*s
)
3049 const void *SSL_get_current_expansion(SSL
*s
)
3055 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
3057 if (s
->compress
!= NULL
)
3058 return (s
->compress
->meth
);
3062 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
3064 if (s
->expand
!= NULL
)
3065 return (s
->expand
->meth
);
3070 int ssl_init_wbio_buffer(SSL
*s
, int push
)
3074 if (s
->bbio
== NULL
) {
3075 bbio
= BIO_new(BIO_f_buffer());
3081 if (s
->bbio
== s
->wbio
)
3082 s
->wbio
= BIO_pop(s
->wbio
);
3084 (void)BIO_reset(bbio
);
3085 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
3086 if (!BIO_set_read_buffer_size(bbio
, 1)) {
3087 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
, ERR_R_BUF_LIB
);
3091 if (s
->wbio
!= bbio
)
3092 s
->wbio
= BIO_push(bbio
, s
->wbio
);
3094 if (s
->wbio
== bbio
)
3095 s
->wbio
= BIO_pop(bbio
);
3100 void ssl_free_wbio_buffer(SSL
*s
)
3102 if (s
->bbio
== NULL
)
3105 if (s
->bbio
== s
->wbio
) {
3106 /* remove buffering */
3107 s
->wbio
= BIO_pop(s
->wbio
);
3108 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids
3109 * adding one more preprocessor symbol */
3110 assert(s
->wbio
!= NULL
);
3117 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
3119 ctx
->quiet_shutdown
= mode
;
3122 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
3124 return (ctx
->quiet_shutdown
);
3127 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
3129 s
->quiet_shutdown
= mode
;
3132 int SSL_get_quiet_shutdown(const SSL
*s
)
3134 return (s
->quiet_shutdown
);
3137 void SSL_set_shutdown(SSL
*s
, int mode
)
3142 int SSL_get_shutdown(const SSL
*s
)
3144 return (s
->shutdown
);
3147 int SSL_version(const SSL
*s
)
3149 return (s
->version
);
3152 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
3157 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
3159 CERT
*ocert
= ssl
->cert
;
3160 if (ssl
->ctx
== ctx
)
3162 #ifndef OPENSSL_NO_TLSEXT
3164 ctx
= ssl
->initial_ctx
;
3166 ssl
->cert
= ssl_cert_dup(ctx
->cert
);
3168 /* Preserve any already negotiated parameters */
3170 ssl
->cert
->peer_sigalgs
= ocert
->peer_sigalgs
;
3171 ssl
->cert
->peer_sigalgslen
= ocert
->peer_sigalgslen
;
3172 ocert
->peer_sigalgs
= NULL
;
3173 ssl
->cert
->ciphers_raw
= ocert
->ciphers_raw
;
3174 ssl
->cert
->ciphers_rawlen
= ocert
->ciphers_rawlen
;
3175 ocert
->ciphers_raw
= NULL
;
3177 ssl_cert_free(ocert
);
3181 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
3182 * so setter APIs must prevent invalid lengths from entering the system.
3184 OPENSSL_assert(ssl
->sid_ctx_length
<= sizeof(ssl
->sid_ctx
));
3187 * If the session ID context matches that of the parent SSL_CTX,
3188 * inherit it from the new SSL_CTX as well. If however the context does
3189 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
3190 * leave it unchanged.
3192 if ((ssl
->ctx
!= NULL
) &&
3193 (ssl
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
3194 (memcmp(ssl
->sid_ctx
, ssl
->ctx
->sid_ctx
, ssl
->sid_ctx_length
) == 0)) {
3195 ssl
->sid_ctx_length
= ctx
->sid_ctx_length
;
3196 memcpy(&ssl
->sid_ctx
, &ctx
->sid_ctx
, sizeof(ssl
->sid_ctx
));
3199 CRYPTO_add(&ctx
->references
, 1, CRYPTO_LOCK_SSL_CTX
);
3200 if (ssl
->ctx
!= NULL
)
3201 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
3207 #ifndef OPENSSL_NO_STDIO
3208 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
3210 return (X509_STORE_set_default_paths(ctx
->cert_store
));
3213 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
3216 return (X509_STORE_load_locations(ctx
->cert_store
, CAfile
, CApath
));
3220 void SSL_set_info_callback(SSL
*ssl
,
3221 void (*cb
) (const SSL
*ssl
, int type
, int val
))
3223 ssl
->info_callback
= cb
;
3227 * One compiler (Diab DCC) doesn't like argument names in returned function
3230 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
3233 return ssl
->info_callback
;
3236 int SSL_state(const SSL
*ssl
)
3238 return (ssl
->state
);
3241 void SSL_set_state(SSL
*ssl
, int state
)
3246 void SSL_set_verify_result(SSL
*ssl
, long arg
)
3248 ssl
->verify_result
= arg
;
3251 long SSL_get_verify_result(const SSL
*ssl
)
3253 return (ssl
->verify_result
);
3256 int SSL_get_ex_new_index(long argl
, void *argp
, CRYPTO_EX_new
*new_func
,
3257 CRYPTO_EX_dup
*dup_func
, CRYPTO_EX_free
*free_func
)
3259 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL
, argl
, argp
,
3260 new_func
, dup_func
, free_func
);
3263 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
3265 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
3268 void *SSL_get_ex_data(const SSL
*s
, int idx
)
3270 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
3273 int SSL_CTX_get_ex_new_index(long argl
, void *argp
, CRYPTO_EX_new
*new_func
,
3274 CRYPTO_EX_dup
*dup_func
,
3275 CRYPTO_EX_free
*free_func
)
3277 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX
, argl
, argp
,
3278 new_func
, dup_func
, free_func
);
3281 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
3283 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
3286 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
3288 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
3296 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
3298 return (ctx
->cert_store
);
3301 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
3303 if (ctx
->cert_store
!= NULL
)
3304 X509_STORE_free(ctx
->cert_store
);
3305 ctx
->cert_store
= store
;
3308 int SSL_want(const SSL
*s
)
3310 return (s
->rwstate
);
3314 * \brief Set the callback for generating temporary RSA keys.
3315 * \param ctx the SSL context.
3316 * \param cb the callback
3319 #ifndef OPENSSL_NO_RSA
3320 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX
*ctx
, RSA
*(*cb
) (SSL
*ssl
,
3324 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_RSA_CB
, (void (*)(void))cb
);
3327 void SSL_set_tmp_rsa_callback(SSL
*ssl
, RSA
*(*cb
) (SSL
*ssl
,
3331 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_RSA_CB
, (void (*)(void))cb
);
3337 * \brief The RSA temporary key callback function.
3338 * \param ssl the SSL session.
3339 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3340 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3341 * of the required key in bits.
3342 * \return the temporary RSA key.
3343 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3346 RSA
*cb(SSL
*ssl
, int is_export
, int keylength
)
3352 * \brief Set the callback for generating temporary DH keys.
3353 * \param ctx the SSL context.
3354 * \param dh the callback
3357 #ifndef OPENSSL_NO_DH
3358 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,
3359 DH
*(*dh
) (SSL
*ssl
, int is_export
,
3362 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
3365 void SSL_set_tmp_dh_callback(SSL
*ssl
, DH
*(*dh
) (SSL
*ssl
, int is_export
,
3368 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
3372 #ifndef OPENSSL_NO_ECDH
3373 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX
*ctx
,
3374 EC_KEY
*(*ecdh
) (SSL
*ssl
, int is_export
,
3377 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_ECDH_CB
,
3378 (void (*)(void))ecdh
);
3381 void SSL_set_tmp_ecdh_callback(SSL
*ssl
,
3382 EC_KEY
*(*ecdh
) (SSL
*ssl
, int is_export
,
3385 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_ECDH_CB
, (void (*)(void))ecdh
);
3389 #ifndef OPENSSL_NO_PSK
3390 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
3392 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3393 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
,
3394 SSL_R_DATA_LENGTH_TOO_LONG
);
3397 if (ctx
->psk_identity_hint
!= NULL
)
3398 OPENSSL_free(ctx
->psk_identity_hint
);
3399 if (identity_hint
!= NULL
) {
3400 ctx
->psk_identity_hint
= BUF_strdup(identity_hint
);
3401 if (ctx
->psk_identity_hint
== NULL
)
3404 ctx
->psk_identity_hint
= NULL
;
3408 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
3413 if (s
->session
== NULL
)
3414 return 1; /* session not created yet, ignored */
3416 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3417 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
3420 if (s
->session
->psk_identity_hint
!= NULL
)
3421 OPENSSL_free(s
->session
->psk_identity_hint
);
3422 if (identity_hint
!= NULL
) {
3423 s
->session
->psk_identity_hint
= BUF_strdup(identity_hint
);
3424 if (s
->session
->psk_identity_hint
== NULL
)
3427 s
->session
->psk_identity_hint
= NULL
;
3431 const char *SSL_get_psk_identity_hint(const SSL
*s
)
3433 if (s
== NULL
|| s
->session
== NULL
)
3435 return (s
->session
->psk_identity_hint
);
3438 const char *SSL_get_psk_identity(const SSL
*s
)
3440 if (s
== NULL
|| s
->session
== NULL
)
3442 return (s
->session
->psk_identity
);
3445 void SSL_set_psk_client_callback(SSL
*s
,
3446 unsigned int (*cb
) (SSL
*ssl
,
3455 s
->psk_client_callback
= cb
;
3458 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
,
3459 unsigned int (*cb
) (SSL
*ssl
,
3468 ctx
->psk_client_callback
= cb
;
3471 void SSL_set_psk_server_callback(SSL
*s
,
3472 unsigned int (*cb
) (SSL
*ssl
,
3473 const char *identity
,
3478 s
->psk_server_callback
= cb
;
3481 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
,
3482 unsigned int (*cb
) (SSL
*ssl
,
3483 const char *identity
,
3488 ctx
->psk_server_callback
= cb
;
3492 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
3493 void (*cb
) (int write_p
, int version
,
3494 int content_type
, const void *buf
,
3495 size_t len
, SSL
*ssl
, void *arg
))
3497 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
3500 void SSL_set_msg_callback(SSL
*ssl
,
3501 void (*cb
) (int write_p
, int version
,
3502 int content_type
, const void *buf
,
3503 size_t len
, SSL
*ssl
, void *arg
))
3505 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
3509 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3510 * vairable, freeing EVP_MD_CTX previously stored in that variable, if any.
3511 * If EVP_MD pointer is passed, initializes ctx with this md Returns newly
3515 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
3517 ssl_clear_hash_ctx(hash
);
3518 *hash
= EVP_MD_CTX_create();
3519 if (*hash
== NULL
|| (md
&& EVP_DigestInit_ex(*hash
, md
, NULL
) <= 0)) {
3520 EVP_MD_CTX_destroy(*hash
);
3527 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
3531 EVP_MD_CTX_destroy(*hash
);
3535 void SSL_set_debug(SSL
*s
, int debug
)
3540 int SSL_cache_hit(SSL
*s
)
3545 int SSL_is_server(SSL
*s
)
3550 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
3551 # include "../crypto/bio/bss_file.c"
3554 IMPLEMENT_STACK_OF(SSL_CIPHER
)
3555 IMPLEMENT_STACK_OF(SSL_COMP
)
3556 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);