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) 1998-2018 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
);
247 #ifndef OPENSSL_NO_TLSEXT
248 if (s
->cert
!= NULL
) {
249 if (s
->cert
->alpn_proposed
) {
250 OPENSSL_free(s
->cert
->alpn_proposed
);
251 s
->cert
->alpn_proposed
= NULL
;
253 s
->cert
->alpn_proposed_len
= 0;
254 s
->cert
->alpn_sent
= 0;
259 * Check to see if we were changed into a different method, if so, revert
260 * back if we are not doing session-id reuse.
262 if (!s
->in_handshake
&& (s
->session
== NULL
)
263 && (s
->method
!= s
->ctx
->method
)) {
264 s
->method
->ssl_free(s
);
265 s
->method
= s
->ctx
->method
;
266 if (!s
->method
->ssl_new(s
))
270 s
->method
->ssl_clear(s
);
274 /** Used to change an SSL_CTXs default SSL method type */
275 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
, const SSL_METHOD
*meth
)
277 STACK_OF(SSL_CIPHER
) *sk
;
281 sk
= ssl_create_cipher_list(ctx
->method
, &(ctx
->cipher_list
),
282 &(ctx
->cipher_list_by_id
),
284 SSL2_VERSION
? "SSLv2" :
285 SSL_DEFAULT_CIPHER_LIST
, ctx
->cert
);
286 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
287 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
,
288 SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
294 SSL
*SSL_new(SSL_CTX
*ctx
)
299 SSLerr(SSL_F_SSL_NEW
, SSL_R_NULL_SSL_CTX
);
302 if (ctx
->method
== NULL
) {
303 SSLerr(SSL_F_SSL_NEW
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
307 s
= (SSL
*)OPENSSL_malloc(sizeof(SSL
));
310 memset(s
, 0, sizeof(SSL
));
312 #ifndef OPENSSL_NO_KRB5
313 s
->kssl_ctx
= kssl_ctx_new();
314 #endif /* OPENSSL_NO_KRB5 */
316 s
->options
= ctx
->options
;
318 s
->max_cert_list
= ctx
->max_cert_list
;
321 if (ctx
->cert
!= NULL
) {
323 * Earlier library versions used to copy the pointer to the CERT, not
324 * its contents; only when setting new parameters for the per-SSL
325 * copy, ssl_cert_new would be called (and the direct reference to
326 * the per-SSL_CTX settings would be lost, but those still were
327 * indirectly accessed for various purposes, and for that reason they
328 * used to be known as s->ctx->default_cert). Now we don't look at the
329 * SSL_CTX's CERT after having duplicated it once.
332 s
->cert
= ssl_cert_dup(ctx
->cert
);
336 s
->cert
= NULL
; /* Cannot really happen (see SSL_CTX_new) */
338 s
->read_ahead
= ctx
->read_ahead
;
339 s
->msg_callback
= ctx
->msg_callback
;
340 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
341 s
->verify_mode
= ctx
->verify_mode
;
343 s
->verify_depth
= ctx
->verify_depth
;
345 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
346 OPENSSL_assert(s
->sid_ctx_length
<= sizeof(s
->sid_ctx
));
347 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
348 s
->verify_callback
= ctx
->default_verify_callback
;
349 s
->generate_session_id
= ctx
->generate_session_id
;
351 s
->param
= X509_VERIFY_PARAM_new();
354 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
356 s
->purpose
= ctx
->purpose
;
357 s
->trust
= ctx
->trust
;
359 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
360 s
->max_send_fragment
= ctx
->max_send_fragment
;
362 CRYPTO_add(&ctx
->references
, 1, CRYPTO_LOCK_SSL_CTX
);
364 #ifndef OPENSSL_NO_TLSEXT
365 s
->tlsext_debug_cb
= 0;
366 s
->tlsext_debug_arg
= NULL
;
367 s
->tlsext_ticket_expected
= 0;
368 s
->tlsext_status_type
= -1;
369 s
->tlsext_status_expected
= 0;
370 s
->tlsext_ocsp_ids
= NULL
;
371 s
->tlsext_ocsp_exts
= NULL
;
372 s
->tlsext_ocsp_resp
= NULL
;
373 s
->tlsext_ocsp_resplen
= -1;
374 CRYPTO_add(&ctx
->references
, 1, CRYPTO_LOCK_SSL_CTX
);
375 s
->initial_ctx
= ctx
;
376 # ifndef OPENSSL_NO_EC
377 if (ctx
->tlsext_ecpointformatlist
) {
378 s
->tlsext_ecpointformatlist
=
379 BUF_memdup(ctx
->tlsext_ecpointformatlist
,
380 ctx
->tlsext_ecpointformatlist_length
);
381 if (!s
->tlsext_ecpointformatlist
)
383 s
->tlsext_ecpointformatlist_length
=
384 ctx
->tlsext_ecpointformatlist_length
;
386 if (ctx
->tlsext_ellipticcurvelist
) {
387 s
->tlsext_ellipticcurvelist
=
388 BUF_memdup(ctx
->tlsext_ellipticcurvelist
,
389 ctx
->tlsext_ellipticcurvelist_length
);
390 if (!s
->tlsext_ellipticcurvelist
)
392 s
->tlsext_ellipticcurvelist_length
=
393 ctx
->tlsext_ellipticcurvelist_length
;
396 # ifndef OPENSSL_NO_NEXTPROTONEG
397 s
->next_proto_negotiated
= NULL
;
400 if (s
->ctx
->alpn_client_proto_list
) {
401 s
->alpn_client_proto_list
=
402 OPENSSL_malloc(s
->ctx
->alpn_client_proto_list_len
);
403 if (s
->alpn_client_proto_list
== NULL
)
405 memcpy(s
->alpn_client_proto_list
, s
->ctx
->alpn_client_proto_list
,
406 s
->ctx
->alpn_client_proto_list_len
);
407 s
->alpn_client_proto_list_len
= s
->ctx
->alpn_client_proto_list_len
;
411 s
->verify_result
= X509_V_OK
;
413 s
->method
= ctx
->method
;
415 if (!s
->method
->ssl_new(s
))
418 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
422 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
424 #ifndef OPENSSL_NO_PSK
425 s
->psk_client_callback
= ctx
->psk_client_callback
;
426 s
->psk_server_callback
= ctx
->psk_server_callback
;
433 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
437 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
438 unsigned int sid_ctx_len
)
440 if (sid_ctx_len
> sizeof(ctx
->sid_ctx
)) {
441 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,
442 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
445 ctx
->sid_ctx_length
= sid_ctx_len
;
446 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
451 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
452 unsigned int sid_ctx_len
)
454 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
455 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,
456 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
459 ssl
->sid_ctx_length
= sid_ctx_len
;
460 memcpy(ssl
->sid_ctx
, sid_ctx
, sid_ctx_len
);
465 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
467 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX
);
468 ctx
->generate_session_id
= cb
;
469 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX
);
473 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
475 CRYPTO_w_lock(CRYPTO_LOCK_SSL
);
476 ssl
->generate_session_id
= cb
;
477 CRYPTO_w_unlock(CRYPTO_LOCK_SSL
);
481 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
485 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
486 * we can "construct" a session to give us the desired check - ie. to
487 * find if there's a session in the hash table that would conflict with
488 * any new session built out of this id/id_len and the ssl_version in use
493 if (id_len
> sizeof(r
.session_id
))
496 r
.ssl_version
= ssl
->version
;
497 r
.session_id_length
= id_len
;
498 memcpy(r
.session_id
, id
, id_len
);
500 * NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
501 * callback is calling us to check the uniqueness of a shorter ID, it
502 * must be compared as a padded-out ID because that is what it will be
503 * converted to when the callback has finished choosing it.
505 if ((r
.ssl_version
== SSL2_VERSION
) &&
506 (id_len
< SSL2_SSL_SESSION_ID_LENGTH
)) {
507 memset(r
.session_id
+ id_len
, 0, SSL2_SSL_SESSION_ID_LENGTH
- id_len
);
508 r
.session_id_length
= SSL2_SSL_SESSION_ID_LENGTH
;
511 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX
);
512 p
= lh_SSL_SESSION_retrieve(ssl
->ctx
->sessions
, &r
);
513 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX
);
517 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
519 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
522 int SSL_set_purpose(SSL
*s
, int purpose
)
524 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
527 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
529 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
532 int SSL_set_trust(SSL
*s
, int trust
)
534 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
537 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
539 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
542 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
544 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
547 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
552 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
557 void SSL_certs_clear(SSL
*s
)
559 ssl_cert_clear_certs(s
->cert
);
562 void SSL_free(SSL
*s
)
569 i
= CRYPTO_add(&s
->references
, -1, CRYPTO_LOCK_SSL
);
577 fprintf(stderr
, "SSL_free, bad reference count\n");
583 X509_VERIFY_PARAM_free(s
->param
);
585 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
587 if (s
->bbio
!= NULL
) {
588 /* If the buffering BIO is in place, pop it off */
589 if (s
->bbio
== s
->wbio
) {
590 s
->wbio
= BIO_pop(s
->wbio
);
596 BIO_free_all(s
->rbio
);
597 if ((s
->wbio
!= NULL
) && (s
->wbio
!= s
->rbio
))
598 BIO_free_all(s
->wbio
);
600 if (s
->init_buf
!= NULL
)
601 BUF_MEM_free(s
->init_buf
);
603 /* add extra stuff */
604 if (s
->cipher_list
!= NULL
)
605 sk_SSL_CIPHER_free(s
->cipher_list
);
606 if (s
->cipher_list_by_id
!= NULL
)
607 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
609 /* Make the next call work :-) */
610 if (s
->session
!= NULL
) {
611 ssl_clear_bad_session(s
);
612 SSL_SESSION_free(s
->session
);
615 ssl_clear_cipher_ctx(s
);
616 ssl_clear_hash_ctx(&s
->read_hash
);
617 ssl_clear_hash_ctx(&s
->write_hash
);
620 ssl_cert_free(s
->cert
);
621 /* Free up if allocated */
623 #ifndef OPENSSL_NO_TLSEXT
624 if (s
->tlsext_hostname
)
625 OPENSSL_free(s
->tlsext_hostname
);
627 SSL_CTX_free(s
->initial_ctx
);
628 # ifndef OPENSSL_NO_EC
629 if (s
->tlsext_ecpointformatlist
)
630 OPENSSL_free(s
->tlsext_ecpointformatlist
);
631 if (s
->tlsext_ellipticcurvelist
)
632 OPENSSL_free(s
->tlsext_ellipticcurvelist
);
633 # endif /* OPENSSL_NO_EC */
634 if (s
->tlsext_opaque_prf_input
)
635 OPENSSL_free(s
->tlsext_opaque_prf_input
);
636 if (s
->tlsext_ocsp_exts
)
637 sk_X509_EXTENSION_pop_free(s
->tlsext_ocsp_exts
, X509_EXTENSION_free
);
638 if (s
->tlsext_ocsp_ids
)
639 sk_OCSP_RESPID_pop_free(s
->tlsext_ocsp_ids
, OCSP_RESPID_free
);
640 if (s
->tlsext_ocsp_resp
)
641 OPENSSL_free(s
->tlsext_ocsp_resp
);
642 if (s
->alpn_client_proto_list
)
643 OPENSSL_free(s
->alpn_client_proto_list
);
646 if (s
->client_CA
!= NULL
)
647 sk_X509_NAME_pop_free(s
->client_CA
, X509_NAME_free
);
649 if (s
->method
!= NULL
)
650 s
->method
->ssl_free(s
);
653 SSL_CTX_free(s
->ctx
);
655 #ifndef OPENSSL_NO_KRB5
656 if (s
->kssl_ctx
!= NULL
)
657 kssl_ctx_free(s
->kssl_ctx
);
658 #endif /* OPENSSL_NO_KRB5 */
660 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
661 if (s
->next_proto_negotiated
)
662 OPENSSL_free(s
->next_proto_negotiated
);
665 #ifndef OPENSSL_NO_SRTP
666 if (s
->srtp_profiles
)
667 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
673 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
676 * If the output buffering BIO is still in place, remove it
678 if (s
->bbio
!= NULL
) {
679 if (s
->wbio
== s
->bbio
) {
680 s
->wbio
= s
->wbio
->next_bio
;
681 s
->bbio
->next_bio
= NULL
;
684 if ((s
->rbio
!= NULL
) && (s
->rbio
!= rbio
))
685 BIO_free_all(s
->rbio
);
686 if ((s
->wbio
!= NULL
) && (s
->wbio
!= wbio
) && (s
->rbio
!= s
->wbio
))
687 BIO_free_all(s
->wbio
);
692 BIO
*SSL_get_rbio(const SSL
*s
)
697 BIO
*SSL_get_wbio(const SSL
*s
)
702 int SSL_get_fd(const SSL
*s
)
704 return (SSL_get_rfd(s
));
707 int SSL_get_rfd(const SSL
*s
)
713 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
719 int SSL_get_wfd(const SSL
*s
)
725 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
731 #ifndef OPENSSL_NO_SOCK
732 int SSL_set_fd(SSL
*s
, int fd
)
737 bio
= BIO_new(BIO_s_socket());
740 SSLerr(SSL_F_SSL_SET_FD
, ERR_R_BUF_LIB
);
743 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
744 SSL_set_bio(s
, bio
, bio
);
750 int SSL_set_wfd(SSL
*s
, int fd
)
755 if ((s
->rbio
== NULL
) || (BIO_method_type(s
->rbio
) != BIO_TYPE_SOCKET
)
756 || ((int)BIO_get_fd(s
->rbio
, NULL
) != fd
)) {
757 bio
= BIO_new(BIO_s_socket());
760 SSLerr(SSL_F_SSL_SET_WFD
, ERR_R_BUF_LIB
);
763 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
764 SSL_set_bio(s
, SSL_get_rbio(s
), bio
);
766 SSL_set_bio(s
, SSL_get_rbio(s
), SSL_get_rbio(s
));
772 int SSL_set_rfd(SSL
*s
, int fd
)
777 if ((s
->wbio
== NULL
) || (BIO_method_type(s
->wbio
) != BIO_TYPE_SOCKET
)
778 || ((int)BIO_get_fd(s
->wbio
, NULL
) != fd
)) {
779 bio
= BIO_new(BIO_s_socket());
782 SSLerr(SSL_F_SSL_SET_RFD
, ERR_R_BUF_LIB
);
785 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
786 SSL_set_bio(s
, bio
, SSL_get_wbio(s
));
788 SSL_set_bio(s
, SSL_get_wbio(s
), SSL_get_wbio(s
));
795 /* return length of latest Finished message we sent, copy to 'buf' */
796 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
801 ret
= s
->s3
->tmp
.finish_md_len
;
804 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
809 /* return length of latest Finished message we expected, copy to 'buf' */
810 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
815 ret
= s
->s3
->tmp
.peer_finish_md_len
;
818 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
823 int SSL_get_verify_mode(const SSL
*s
)
825 return (s
->verify_mode
);
828 int SSL_get_verify_depth(const SSL
*s
)
830 return X509_VERIFY_PARAM_get_depth(s
->param
);
833 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
834 return (s
->verify_callback
);
837 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
839 return (ctx
->verify_mode
);
842 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
844 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
847 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
848 return (ctx
->default_verify_callback
);
851 void SSL_set_verify(SSL
*s
, int mode
,
852 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
854 s
->verify_mode
= mode
;
855 if (callback
!= NULL
)
856 s
->verify_callback
= callback
;
859 void SSL_set_verify_depth(SSL
*s
, int depth
)
861 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
864 void SSL_set_read_ahead(SSL
*s
, int yes
)
869 int SSL_get_read_ahead(const SSL
*s
)
871 return (s
->read_ahead
);
874 int SSL_pending(const SSL
*s
)
877 * SSL_pending cannot work properly if read-ahead is enabled
878 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
879 * impossible to fix since SSL_pending cannot report errors that may be
880 * observed while scanning the new data. (Note that SSL_pending() is
881 * often used as a boolean value, so we'd better not return -1.)
883 return (s
->method
->ssl_pending(s
));
886 X509
*SSL_get_peer_certificate(const SSL
*s
)
890 if ((s
== NULL
) || (s
->session
== NULL
))
893 r
= s
->session
->peer
;
898 CRYPTO_add(&r
->references
, 1, CRYPTO_LOCK_X509
);
903 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
907 if ((s
== NULL
) || (s
->session
== NULL
)
908 || (s
->session
->sess_cert
== NULL
))
911 r
= s
->session
->sess_cert
->cert_chain
;
914 * If we are a client, cert_chain includes the peer's own certificate; if
915 * we are a server, it does not.
922 * Now in theory, since the calling process own 't' it should be safe to
923 * modify. We need to be able to read f without being hassled
925 void SSL_copy_session_id(SSL
*t
, const SSL
*f
)
929 /* Do we need to to SSL locking? */
930 SSL_set_session(t
, SSL_get_session(f
));
933 * what if we are setup as SSLv2 but want to talk SSLv3 or vice-versa
935 if (t
->method
!= f
->method
) {
936 t
->method
->ssl_free(t
); /* cleanup current */
937 t
->method
= f
->method
; /* change method */
938 t
->method
->ssl_new(t
); /* setup new */
942 if (f
->cert
!= NULL
) {
943 CRYPTO_add(&f
->cert
->references
, 1, CRYPTO_LOCK_SSL_CERT
);
949 SSL_set_session_id_context(t
, f
->sid_ctx
, f
->sid_ctx_length
);
952 /* Fix this so it checks all the valid key/cert options */
953 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
956 (ctx
->cert
== NULL
) || (ctx
->cert
->key
->x509
== NULL
)) {
957 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,
958 SSL_R_NO_CERTIFICATE_ASSIGNED
);
961 if (ctx
->cert
->key
->privatekey
== NULL
) {
962 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,
963 SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
966 return (X509_check_private_key
967 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
));
970 /* Fix this function so that it takes an optional type parameter */
971 int SSL_check_private_key(const SSL
*ssl
)
974 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, ERR_R_PASSED_NULL_PARAMETER
);
977 if (ssl
->cert
== NULL
) {
978 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
981 if (ssl
->cert
->key
->x509
== NULL
) {
982 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
985 if (ssl
->cert
->key
->privatekey
== NULL
) {
986 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
989 return (X509_check_private_key(ssl
->cert
->key
->x509
,
990 ssl
->cert
->key
->privatekey
));
993 int SSL_accept(SSL
*s
)
995 if (s
->handshake_func
== 0)
996 /* Not properly initialized yet */
997 SSL_set_accept_state(s
);
999 return (s
->method
->ssl_accept(s
));
1002 int SSL_connect(SSL
*s
)
1004 if (s
->handshake_func
== 0)
1005 /* Not properly initialized yet */
1006 SSL_set_connect_state(s
);
1008 return (s
->method
->ssl_connect(s
));
1011 long SSL_get_default_timeout(const SSL
*s
)
1013 return (s
->method
->get_timeout());
1016 int SSL_read(SSL
*s
, void *buf
, int num
)
1018 if (s
->handshake_func
== 0) {
1019 SSLerr(SSL_F_SSL_READ
, SSL_R_UNINITIALIZED
);
1023 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1024 s
->rwstate
= SSL_NOTHING
;
1027 return (s
->method
->ssl_read(s
, buf
, num
));
1030 int SSL_peek(SSL
*s
, void *buf
, int num
)
1032 if (s
->handshake_func
== 0) {
1033 SSLerr(SSL_F_SSL_PEEK
, SSL_R_UNINITIALIZED
);
1037 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1040 return (s
->method
->ssl_peek(s
, buf
, num
));
1043 int SSL_write(SSL
*s
, const void *buf
, int num
)
1045 if (s
->handshake_func
== 0) {
1046 SSLerr(SSL_F_SSL_WRITE
, SSL_R_UNINITIALIZED
);
1050 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
1051 s
->rwstate
= SSL_NOTHING
;
1052 SSLerr(SSL_F_SSL_WRITE
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
1055 return (s
->method
->ssl_write(s
, buf
, num
));
1058 int SSL_shutdown(SSL
*s
)
1061 * Note that this function behaves differently from what one might
1062 * expect. Return values are 0 for no success (yet), 1 for success; but
1063 * calling it once is usually not enough, even if blocking I/O is used
1064 * (see ssl3_shutdown).
1067 if (s
->handshake_func
== 0) {
1068 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
1072 if (!SSL_in_init(s
)) {
1073 return s
->method
->ssl_shutdown(s
);
1075 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_SHUTDOWN_WHILE_IN_INIT
);
1080 int SSL_renegotiate(SSL
*s
)
1082 if (s
->renegotiate
== 0)
1087 return (s
->method
->ssl_renegotiate(s
));
1090 int SSL_renegotiate_abbreviated(SSL
*s
)
1092 if (s
->renegotiate
== 0)
1097 return (s
->method
->ssl_renegotiate(s
));
1100 int SSL_renegotiate_pending(SSL
*s
)
1103 * becomes true when negotiation is requested; false again once a
1104 * handshake has finished
1106 return (s
->renegotiate
!= 0);
1109 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
1114 case SSL_CTRL_GET_READ_AHEAD
:
1115 return (s
->read_ahead
);
1116 case SSL_CTRL_SET_READ_AHEAD
:
1118 s
->read_ahead
= larg
;
1121 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1122 s
->msg_callback_arg
= parg
;
1125 case SSL_CTRL_OPTIONS
:
1126 return (s
->options
|= larg
);
1127 case SSL_CTRL_CLEAR_OPTIONS
:
1128 return (s
->options
&= ~larg
);
1130 return (s
->mode
|= larg
);
1131 case SSL_CTRL_CLEAR_MODE
:
1132 return (s
->mode
&= ~larg
);
1133 case SSL_CTRL_GET_MAX_CERT_LIST
:
1134 return (s
->max_cert_list
);
1135 case SSL_CTRL_SET_MAX_CERT_LIST
:
1136 l
= s
->max_cert_list
;
1137 s
->max_cert_list
= larg
;
1139 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
1140 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
1142 s
->max_send_fragment
= larg
;
1144 case SSL_CTRL_GET_RI_SUPPORT
:
1146 return s
->s3
->send_connection_binding
;
1149 case SSL_CTRL_CERT_FLAGS
:
1150 return (s
->cert
->cert_flags
|= larg
);
1151 case SSL_CTRL_CLEAR_CERT_FLAGS
:
1152 return (s
->cert
->cert_flags
&= ~larg
);
1154 case SSL_CTRL_GET_RAW_CIPHERLIST
:
1156 if (s
->cert
->ciphers_raw
== NULL
)
1158 *(unsigned char **)parg
= s
->cert
->ciphers_raw
;
1159 return (int)s
->cert
->ciphers_rawlen
;
1161 return ssl_put_cipher_by_char(s
, NULL
, NULL
);
1163 return (s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
));
1167 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
1170 case SSL_CTRL_SET_MSG_CALLBACK
:
1171 s
->msg_callback
= (void (*)
1172 (int write_p
, int version
, int content_type
,
1173 const void *buf
, size_t len
, SSL
*ssl
,
1178 return (s
->method
->ssl_callback_ctrl(s
, cmd
, fp
));
1182 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
1184 return ctx
->sessions
;
1187 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
1190 /* For some cases with ctx == NULL perform syntax checks */
1193 #ifndef OPENSSL_NO_EC
1194 case SSL_CTRL_SET_CURVES_LIST
:
1195 return tls1_set_curves_list(NULL
, NULL
, parg
);
1197 case SSL_CTRL_SET_SIGALGS_LIST
:
1198 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
1199 return tls1_set_sigalgs_list(NULL
, parg
, 0);
1206 case SSL_CTRL_GET_READ_AHEAD
:
1207 return (ctx
->read_ahead
);
1208 case SSL_CTRL_SET_READ_AHEAD
:
1209 l
= ctx
->read_ahead
;
1210 ctx
->read_ahead
= larg
;
1213 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1214 ctx
->msg_callback_arg
= parg
;
1217 case SSL_CTRL_GET_MAX_CERT_LIST
:
1218 return (ctx
->max_cert_list
);
1219 case SSL_CTRL_SET_MAX_CERT_LIST
:
1220 l
= ctx
->max_cert_list
;
1221 ctx
->max_cert_list
= larg
;
1224 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
1225 l
= ctx
->session_cache_size
;
1226 ctx
->session_cache_size
= larg
;
1228 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
1229 return (ctx
->session_cache_size
);
1230 case SSL_CTRL_SET_SESS_CACHE_MODE
:
1231 l
= ctx
->session_cache_mode
;
1232 ctx
->session_cache_mode
= larg
;
1234 case SSL_CTRL_GET_SESS_CACHE_MODE
:
1235 return (ctx
->session_cache_mode
);
1237 case SSL_CTRL_SESS_NUMBER
:
1238 return (lh_SSL_SESSION_num_items(ctx
->sessions
));
1239 case SSL_CTRL_SESS_CONNECT
:
1240 return (ctx
->stats
.sess_connect
);
1241 case SSL_CTRL_SESS_CONNECT_GOOD
:
1242 return (ctx
->stats
.sess_connect_good
);
1243 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
1244 return (ctx
->stats
.sess_connect_renegotiate
);
1245 case SSL_CTRL_SESS_ACCEPT
:
1246 return (ctx
->stats
.sess_accept
);
1247 case SSL_CTRL_SESS_ACCEPT_GOOD
:
1248 return (ctx
->stats
.sess_accept_good
);
1249 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
1250 return (ctx
->stats
.sess_accept_renegotiate
);
1251 case SSL_CTRL_SESS_HIT
:
1252 return (ctx
->stats
.sess_hit
);
1253 case SSL_CTRL_SESS_CB_HIT
:
1254 return (ctx
->stats
.sess_cb_hit
);
1255 case SSL_CTRL_SESS_MISSES
:
1256 return (ctx
->stats
.sess_miss
);
1257 case SSL_CTRL_SESS_TIMEOUTS
:
1258 return (ctx
->stats
.sess_timeout
);
1259 case SSL_CTRL_SESS_CACHE_FULL
:
1260 return (ctx
->stats
.sess_cache_full
);
1261 case SSL_CTRL_OPTIONS
:
1262 return (ctx
->options
|= larg
);
1263 case SSL_CTRL_CLEAR_OPTIONS
:
1264 return (ctx
->options
&= ~larg
);
1266 return (ctx
->mode
|= larg
);
1267 case SSL_CTRL_CLEAR_MODE
:
1268 return (ctx
->mode
&= ~larg
);
1269 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
1270 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
1272 ctx
->max_send_fragment
= larg
;
1274 case SSL_CTRL_CERT_FLAGS
:
1275 return (ctx
->cert
->cert_flags
|= larg
);
1276 case SSL_CTRL_CLEAR_CERT_FLAGS
:
1277 return (ctx
->cert
->cert_flags
&= ~larg
);
1279 return (ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
));
1283 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
1286 case SSL_CTRL_SET_MSG_CALLBACK
:
1287 ctx
->msg_callback
= (void (*)
1288 (int write_p
, int version
, int content_type
,
1289 const void *buf
, size_t len
, SSL
*ssl
,
1294 return (ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
));
1298 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
1306 return ((l
> 0) ? 1 : -1);
1309 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
1310 const SSL_CIPHER
*const *bp
)
1314 l
= (*ap
)->id
- (*bp
)->id
;
1318 return ((l
> 0) ? 1 : -1);
1321 /** return a STACK of the ciphers available for the SSL and in order of
1323 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
1326 if (s
->cipher_list
!= NULL
) {
1327 return (s
->cipher_list
);
1328 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
1329 return (s
->ctx
->cipher_list
);
1335 /** return a STACK of the ciphers available for the SSL and in order of
1337 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
1340 if (s
->cipher_list_by_id
!= NULL
) {
1341 return (s
->cipher_list_by_id
);
1342 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list_by_id
!= NULL
)) {
1343 return (s
->ctx
->cipher_list_by_id
);
1349 /** The old interface to get the same thing as SSL_get_ciphers() */
1350 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
1353 STACK_OF(SSL_CIPHER
) *sk
;
1357 sk
= SSL_get_ciphers(s
);
1358 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
1360 c
= sk_SSL_CIPHER_value(sk
, n
);
1366 /** specify the ciphers to be used by default by the SSL_CTX */
1367 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
1369 STACK_OF(SSL_CIPHER
) *sk
;
1371 sk
= ssl_create_cipher_list(ctx
->method
, &ctx
->cipher_list
,
1372 &ctx
->cipher_list_by_id
, str
, ctx
->cert
);
1374 * ssl_create_cipher_list may return an empty stack if it was unable to
1375 * find a cipher matching the given rule string (for example if the rule
1376 * string specifies a cipher which has been disabled). This is not an
1377 * error as far as ssl_create_cipher_list is concerned, and hence
1378 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
1382 else if (sk_SSL_CIPHER_num(sk
) == 0) {
1383 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
1389 /** specify the ciphers to be used by the SSL */
1390 int SSL_set_cipher_list(SSL
*s
, const char *str
)
1392 STACK_OF(SSL_CIPHER
) *sk
;
1394 sk
= ssl_create_cipher_list(s
->ctx
->method
, &s
->cipher_list
,
1395 &s
->cipher_list_by_id
, str
, s
->cert
);
1396 /* see comment in SSL_CTX_set_cipher_list */
1399 else if (sk_SSL_CIPHER_num(sk
) == 0) {
1400 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
1406 /* works well for SSLv2, not so good for SSLv3 */
1407 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int size
)
1410 STACK_OF(SSL_CIPHER
) *clntsk
, *srvrsk
;
1415 || s
->session
== NULL
1416 || s
->session
->ciphers
== NULL
1421 clntsk
= s
->session
->ciphers
;
1422 srvrsk
= SSL_get_ciphers(s
);
1423 if (clntsk
== NULL
|| srvrsk
== NULL
)
1426 if (sk_SSL_CIPHER_num(clntsk
) == 0 || sk_SSL_CIPHER_num(srvrsk
) == 0)
1429 for (i
= 0; i
< sk_SSL_CIPHER_num(clntsk
); i
++) {
1432 c
= sk_SSL_CIPHER_value(clntsk
, i
);
1433 if (sk_SSL_CIPHER_find(srvrsk
, c
) < 0)
1436 n
= strlen(c
->name
);
1452 int ssl_cipher_list_to_bytes(SSL
*s
, STACK_OF(SSL_CIPHER
) *sk
,
1454 int (*put_cb
) (const SSL_CIPHER
*,
1461 int empty_reneg_info_scsv
= !s
->renegotiate
;
1462 /* Set disabled masks for this session */
1463 ssl_set_client_disabled(s
);
1469 put_cb
= s
->method
->put_cipher_by_char
;
1471 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); i
++) {
1472 c
= sk_SSL_CIPHER_value(sk
, i
);
1473 /* Skip disabled ciphers */
1474 if (c
->algorithm_ssl
& ct
->mask_ssl
||
1475 c
->algorithm_mkey
& ct
->mask_k
|| c
->algorithm_auth
& ct
->mask_a
)
1477 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
1478 if (c
->id
== SSL3_CK_SCSV
) {
1479 if (!empty_reneg_info_scsv
)
1482 empty_reneg_info_scsv
= 0;
1489 * If p == q, no ciphers; caller indicates an error. Otherwise, add
1493 if (empty_reneg_info_scsv
) {
1494 static SSL_CIPHER scsv
= {
1495 0, NULL
, SSL3_CK_SCSV
, 0, 0, 0, 0, 0, 0, 0, 0, 0
1497 j
= put_cb(&scsv
, p
);
1499 #ifdef OPENSSL_RI_DEBUG
1501 "TLS_EMPTY_RENEGOTIATION_INFO_SCSV sent by client\n");
1504 if (s
->mode
& SSL_MODE_SEND_FALLBACK_SCSV
) {
1505 static SSL_CIPHER scsv
= {
1506 0, NULL
, SSL3_CK_FALLBACK_SCSV
, 0, 0, 0, 0, 0, 0, 0, 0, 0
1508 j
= put_cb(&scsv
, p
);
1516 STACK_OF(SSL_CIPHER
) *ssl_bytes_to_cipher_list(SSL
*s
, unsigned char *p
,
1518 STACK_OF(SSL_CIPHER
) **skp
)
1520 const SSL_CIPHER
*c
;
1521 STACK_OF(SSL_CIPHER
) *sk
;
1525 s
->s3
->send_connection_binding
= 0;
1527 n
= ssl_put_cipher_by_char(s
, NULL
, NULL
);
1528 if (n
== 0 || (num
% n
) != 0) {
1529 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,
1530 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
1533 if ((skp
== NULL
) || (*skp
== NULL
)) {
1534 sk
= sk_SSL_CIPHER_new_null(); /* change perhaps later */
1536 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
1541 sk_SSL_CIPHER_zero(sk
);
1544 if (s
->cert
->ciphers_raw
)
1545 OPENSSL_free(s
->cert
->ciphers_raw
);
1546 s
->cert
->ciphers_raw
= BUF_memdup(p
, num
);
1547 if (s
->cert
->ciphers_raw
== NULL
) {
1548 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
1551 s
->cert
->ciphers_rawlen
= (size_t)num
;
1553 for (i
= 0; i
< num
; i
+= n
) {
1554 /* Check for TLS_EMPTY_RENEGOTIATION_INFO_SCSV */
1555 if (s
->s3
&& (n
!= 3 || !p
[0]) &&
1556 (p
[n
- 2] == ((SSL3_CK_SCSV
>> 8) & 0xff)) &&
1557 (p
[n
- 1] == (SSL3_CK_SCSV
& 0xff))) {
1558 /* SCSV fatal if renegotiating */
1559 if (s
->renegotiate
) {
1560 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,
1561 SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING
);
1562 ssl3_send_alert(s
, SSL3_AL_FATAL
, SSL_AD_HANDSHAKE_FAILURE
);
1565 s
->s3
->send_connection_binding
= 1;
1567 #ifdef OPENSSL_RI_DEBUG
1568 fprintf(stderr
, "SCSV received by server\n");
1573 /* Check for TLS_FALLBACK_SCSV */
1574 if ((n
!= 3 || !p
[0]) &&
1575 (p
[n
- 2] == ((SSL3_CK_FALLBACK_SCSV
>> 8) & 0xff)) &&
1576 (p
[n
- 1] == (SSL3_CK_FALLBACK_SCSV
& 0xff))) {
1578 * The SCSV indicates that the client previously tried a higher
1579 * version. Fail if the current version is an unexpected
1582 if (!SSL_ctrl(s
, SSL_CTRL_CHECK_PROTO_VERSION
, 0, NULL
)) {
1583 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,
1584 SSL_R_INAPPROPRIATE_FALLBACK
);
1586 ssl3_send_alert(s
, SSL3_AL_FATAL
,
1587 SSL_AD_INAPPROPRIATE_FALLBACK
);
1594 c
= ssl_get_cipher_by_char(s
, p
);
1597 if (!sk_SSL_CIPHER_push(sk
, c
)) {
1598 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
1608 if ((skp
== NULL
) || (*skp
== NULL
))
1609 sk_SSL_CIPHER_free(sk
);
1613 #ifndef OPENSSL_NO_TLSEXT
1614 /** return a servername extension value if provided in Client Hello, or NULL.
1615 * So far, only host_name types are defined (RFC 3546).
1618 const char *SSL_get_servername(const SSL
*s
, const int type
)
1620 if (type
!= TLSEXT_NAMETYPE_host_name
)
1623 return s
->session
&& !s
->tlsext_hostname
?
1624 s
->session
->tlsext_hostname
: s
->tlsext_hostname
;
1627 int SSL_get_servername_type(const SSL
*s
)
1630 && (!s
->tlsext_hostname
? s
->session
->
1631 tlsext_hostname
: s
->tlsext_hostname
))
1632 return TLSEXT_NAMETYPE_host_name
;
1637 * SSL_select_next_proto implements the standard protocol selection. It is
1638 * expected that this function is called from the callback set by
1639 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
1640 * vector of 8-bit, length prefixed byte strings. The length byte itself is
1641 * not included in the length. A byte string of length 0 is invalid. No byte
1642 * string may be truncated. The current, but experimental algorithm for
1643 * selecting the protocol is: 1) If the server doesn't support NPN then this
1644 * is indicated to the callback. In this case, the client application has to
1645 * abort the connection or have a default application level protocol. 2) If
1646 * the server supports NPN, but advertises an empty list then the client
1647 * selects the first protcol in its list, but indicates via the API that this
1648 * fallback case was enacted. 3) Otherwise, the client finds the first
1649 * protocol in the server's list that it supports and selects this protocol.
1650 * This is because it's assumed that the server has better information about
1651 * which protocol a client should use. 4) If the client doesn't support any
1652 * of the server's advertised protocols, then this is treated the same as
1653 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
1654 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1656 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
1657 const unsigned char *server
,
1658 unsigned int server_len
,
1659 const unsigned char *client
,
1660 unsigned int client_len
)
1663 const unsigned char *result
;
1664 int status
= OPENSSL_NPN_UNSUPPORTED
;
1667 * For each protocol in server preference order, see if we support it.
1669 for (i
= 0; i
< server_len
;) {
1670 for (j
= 0; j
< client_len
;) {
1671 if (server
[i
] == client
[j
] &&
1672 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
1673 /* We found a match */
1674 result
= &server
[i
];
1675 status
= OPENSSL_NPN_NEGOTIATED
;
1685 /* There's no overlap between our protocols and the server's list. */
1687 status
= OPENSSL_NPN_NO_OVERLAP
;
1690 *out
= (unsigned char *)result
+ 1;
1691 *outlen
= result
[0];
1695 # ifndef OPENSSL_NO_NEXTPROTONEG
1697 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
1698 * client's requested protocol for this connection and returns 0. If the
1699 * client didn't request any protocol, then *data is set to NULL. Note that
1700 * the client can request any protocol it chooses. The value returned from
1701 * this function need not be a member of the list of supported protocols
1702 * provided by the callback.
1704 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
1707 *data
= s
->next_proto_negotiated
;
1711 *len
= s
->next_proto_negotiated_len
;
1716 * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when
1717 * a TLS server needs a list of supported protocols for Next Protocol
1718 * Negotiation. The returned list must be in wire format. The list is
1719 * returned by setting |out| to point to it and |outlen| to its length. This
1720 * memory will not be modified, but one should assume that the SSL* keeps a
1721 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
1722 * wishes to advertise. Otherwise, no such extension will be included in the
1725 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX
*ctx
,
1726 int (*cb
) (SSL
*ssl
,
1729 unsigned int *outlen
,
1730 void *arg
), void *arg
)
1732 ctx
->next_protos_advertised_cb
= cb
;
1733 ctx
->next_protos_advertised_cb_arg
= arg
;
1737 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1738 * client needs to select a protocol from the server's provided list. |out|
1739 * must be set to point to the selected protocol (which may be within |in|).
1740 * The length of the protocol name must be written into |outlen|. The
1741 * server's advertised protocols are provided in |in| and |inlen|. The
1742 * callback can assume that |in| is syntactically valid. The client must
1743 * select a protocol. It is fatal to the connection if this callback returns
1744 * a value other than SSL_TLSEXT_ERR_OK.
1746 void SSL_CTX_set_next_proto_select_cb(SSL_CTX
*ctx
,
1747 int (*cb
) (SSL
*s
, unsigned char **out
,
1748 unsigned char *outlen
,
1749 const unsigned char *in
,
1751 void *arg
), void *arg
)
1753 ctx
->next_proto_select_cb
= cb
;
1754 ctx
->next_proto_select_cb_arg
= arg
;
1759 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
1760 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1761 * length-prefixed strings). Returns 0 on success.
1763 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
1764 unsigned protos_len
)
1766 if (ctx
->alpn_client_proto_list
)
1767 OPENSSL_free(ctx
->alpn_client_proto_list
);
1769 ctx
->alpn_client_proto_list
= OPENSSL_malloc(protos_len
);
1770 if (!ctx
->alpn_client_proto_list
)
1772 memcpy(ctx
->alpn_client_proto_list
, protos
, protos_len
);
1773 ctx
->alpn_client_proto_list_len
= protos_len
;
1779 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
1780 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1781 * length-prefixed strings). Returns 0 on success.
1783 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
1784 unsigned protos_len
)
1786 if (ssl
->alpn_client_proto_list
)
1787 OPENSSL_free(ssl
->alpn_client_proto_list
);
1789 ssl
->alpn_client_proto_list
= OPENSSL_malloc(protos_len
);
1790 if (!ssl
->alpn_client_proto_list
)
1792 memcpy(ssl
->alpn_client_proto_list
, protos
, protos_len
);
1793 ssl
->alpn_client_proto_list_len
= protos_len
;
1799 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
1800 * called during ClientHello processing in order to select an ALPN protocol
1801 * from the client's list of offered protocols.
1803 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
1804 int (*cb
) (SSL
*ssl
,
1805 const unsigned char **out
,
1806 unsigned char *outlen
,
1807 const unsigned char *in
,
1809 void *arg
), void *arg
)
1811 ctx
->alpn_select_cb
= cb
;
1812 ctx
->alpn_select_cb_arg
= arg
;
1816 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from
1817 * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name
1818 * (not including the leading length-prefix byte). If the server didn't
1819 * respond with a negotiated protocol then |*len| will be zero.
1821 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
1826 *data
= ssl
->s3
->alpn_selected
;
1830 *len
= ssl
->s3
->alpn_selected_len
;
1833 #endif /* !OPENSSL_NO_TLSEXT */
1835 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
1836 const char *label
, size_t llen
,
1837 const unsigned char *context
, size_t contextlen
,
1840 if (s
->version
< TLS1_VERSION
&& s
->version
!= DTLS1_BAD_VER
)
1843 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
1845 contextlen
, use_context
);
1848 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
1850 const unsigned char *session_id
= a
->session_id
;
1852 unsigned char tmp_storage
[4];
1854 if (a
->session_id_length
< sizeof(tmp_storage
)) {
1855 memset(tmp_storage
, 0, sizeof(tmp_storage
));
1856 memcpy(tmp_storage
, a
->session_id
, a
->session_id_length
);
1857 session_id
= tmp_storage
;
1861 ((unsigned long)session_id
[0]) |
1862 ((unsigned long)session_id
[1] << 8L) |
1863 ((unsigned long)session_id
[2] << 16L) |
1864 ((unsigned long)session_id
[3] << 24L);
1869 * NB: If this function (or indeed the hash function which uses a sort of
1870 * coarser function than this one) is changed, ensure
1871 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
1872 * being able to construct an SSL_SESSION that will collide with any existing
1873 * session with a matching session ID.
1875 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
1877 if (a
->ssl_version
!= b
->ssl_version
)
1879 if (a
->session_id_length
!= b
->session_id_length
)
1881 return (memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
));
1885 * These wrapper functions should remain rather than redeclaring
1886 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1887 * variable. The reason is that the functions aren't static, they're exposed
1890 static IMPLEMENT_LHASH_HASH_FN(ssl_session
, SSL_SESSION
)
1891 static IMPLEMENT_LHASH_COMP_FN(ssl_session
, SSL_SESSION
)
1893 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
1895 SSL_CTX
*ret
= NULL
;
1898 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_NULL_SSL_METHOD_PASSED
);
1902 if (FIPS_mode() && (meth
->version
< TLS1_VERSION
)) {
1903 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE
);
1908 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
1909 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
1912 ret
= (SSL_CTX
*)OPENSSL_malloc(sizeof(SSL_CTX
));
1916 memset(ret
, 0, sizeof(SSL_CTX
));
1920 ret
->cert_store
= NULL
;
1921 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
1922 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
1923 ret
->session_cache_head
= NULL
;
1924 ret
->session_cache_tail
= NULL
;
1926 /* We take the system default */
1927 ret
->session_timeout
= meth
->get_timeout();
1929 ret
->new_session_cb
= 0;
1930 ret
->remove_session_cb
= 0;
1931 ret
->get_session_cb
= 0;
1932 ret
->generate_session_id
= 0;
1934 memset((char *)&ret
->stats
, 0, sizeof(ret
->stats
));
1936 ret
->references
= 1;
1937 ret
->quiet_shutdown
= 0;
1939 /* ret->cipher=NULL;*/
1941 ret->s2->challenge=NULL;
1942 ret->master_key=NULL;
1944 ret->s2->conn_id=NULL; */
1946 ret
->info_callback
= NULL
;
1948 ret
->app_verify_callback
= 0;
1949 ret
->app_verify_arg
= NULL
;
1951 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
1952 ret
->read_ahead
= 0;
1953 ret
->msg_callback
= 0;
1954 ret
->msg_callback_arg
= NULL
;
1955 ret
->verify_mode
= SSL_VERIFY_NONE
;
1957 ret
->verify_depth
= -1; /* Don't impose a limit (but x509_lu.c does) */
1959 ret
->sid_ctx_length
= 0;
1960 ret
->default_verify_callback
= NULL
;
1961 if ((ret
->cert
= ssl_cert_new()) == NULL
)
1964 ret
->default_passwd_callback
= 0;
1965 ret
->default_passwd_callback_userdata
= NULL
;
1966 ret
->client_cert_cb
= 0;
1967 ret
->app_gen_cookie_cb
= 0;
1968 ret
->app_verify_cookie_cb
= 0;
1970 ret
->sessions
= lh_SSL_SESSION_new();
1971 if (ret
->sessions
== NULL
)
1973 ret
->cert_store
= X509_STORE_new();
1974 if (ret
->cert_store
== NULL
)
1977 ssl_create_cipher_list(ret
->method
,
1978 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
1980 SSL2_VERSION
? "SSLv2" : SSL_DEFAULT_CIPHER_LIST
,
1982 if (ret
->cipher_list
== NULL
|| sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
1983 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
1987 ret
->param
= X509_VERIFY_PARAM_new();
1991 if ((ret
->rsa_md5
= EVP_get_digestbyname("ssl2-md5")) == NULL
) {
1992 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES
);
1995 if ((ret
->md5
= EVP_get_digestbyname("ssl3-md5")) == NULL
) {
1996 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
1999 if ((ret
->sha1
= EVP_get_digestbyname("ssl3-sha1")) == NULL
) {
2000 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
2004 if ((ret
->client_CA
= sk_X509_NAME_new_null()) == NULL
)
2007 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
);
2009 ret
->extra_certs
= NULL
;
2010 /* No compression for DTLS */
2011 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
2012 ret
->comp_methods
= SSL_COMP_get_compression_methods();
2014 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2016 #ifndef OPENSSL_NO_TLSEXT
2017 ret
->tlsext_servername_callback
= 0;
2018 ret
->tlsext_servername_arg
= NULL
;
2019 /* Setup RFC4507 ticket keys */
2020 if ((RAND_bytes(ret
->tlsext_tick_key_name
, 16) <= 0)
2021 || (RAND_bytes(ret
->tlsext_tick_hmac_key
, 16) <= 0)
2022 || (RAND_bytes(ret
->tlsext_tick_aes_key
, 16) <= 0))
2023 ret
->options
|= SSL_OP_NO_TICKET
;
2025 ret
->tlsext_status_cb
= 0;
2026 ret
->tlsext_status_arg
= NULL
;
2028 # ifndef OPENSSL_NO_NEXTPROTONEG
2029 ret
->next_protos_advertised_cb
= 0;
2030 ret
->next_proto_select_cb
= 0;
2033 #ifndef OPENSSL_NO_PSK
2034 ret
->psk_identity_hint
= NULL
;
2035 ret
->psk_client_callback
= NULL
;
2036 ret
->psk_server_callback
= NULL
;
2038 #ifndef OPENSSL_NO_SRP
2039 SSL_CTX_SRP_CTX_init(ret
);
2041 #ifndef OPENSSL_NO_BUF_FREELISTS
2042 ret
->freelist_max_len
= SSL_MAX_BUF_FREELIST_LEN_DEFAULT
;
2043 ret
->rbuf_freelist
= OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST
));
2044 if (!ret
->rbuf_freelist
)
2046 ret
->rbuf_freelist
->chunklen
= 0;
2047 ret
->rbuf_freelist
->len
= 0;
2048 ret
->rbuf_freelist
->head
= NULL
;
2049 ret
->wbuf_freelist
= OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST
));
2050 if (!ret
->wbuf_freelist
)
2052 ret
->wbuf_freelist
->chunklen
= 0;
2053 ret
->wbuf_freelist
->len
= 0;
2054 ret
->wbuf_freelist
->head
= NULL
;
2056 #ifndef OPENSSL_NO_ENGINE
2057 ret
->client_cert_engine
= NULL
;
2058 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2059 # define eng_strx(x) #x
2060 # define eng_str(x) eng_strx(x)
2061 /* Use specific client engine automatically... ignore errors */
2064 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2067 ENGINE_load_builtin_engines();
2068 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2070 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
2076 * Default is to connect to non-RI servers. When RI is more widely
2077 * deployed might change this.
2079 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
2082 * Disable SSLv2 by default, callers that want to enable SSLv2 will have to
2083 * explicitly clear this option via either of SSL_CTX_clear_options() or
2084 * SSL_clear_options().
2086 ret
->options
|= SSL_OP_NO_SSLv2
;
2090 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
2098 static void SSL_COMP_free(SSL_COMP
*comp
)
2104 #ifndef OPENSSL_NO_BUF_FREELISTS
2105 static void ssl_buf_freelist_free(SSL3_BUF_FREELIST
*list
)
2107 SSL3_BUF_FREELIST_ENTRY
*ent
, *next
;
2108 for (ent
= list
->head
; ent
; ent
= next
) {
2116 void SSL_CTX_free(SSL_CTX
*a
)
2123 i
= CRYPTO_add(&a
->references
, -1, CRYPTO_LOCK_SSL_CTX
);
2125 REF_PRINT("SSL_CTX", a
);
2131 fprintf(stderr
, "SSL_CTX_free, bad reference count\n");
2137 X509_VERIFY_PARAM_free(a
->param
);
2140 * Free internal session cache. However: the remove_cb() may reference
2141 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2142 * after the sessions were flushed.
2143 * As the ex_data handling routines might also touch the session cache,
2144 * the most secure solution seems to be: empty (flush) the cache, then
2145 * free ex_data, then finally free the cache.
2146 * (See ticket [openssl.org #212].)
2148 if (a
->sessions
!= NULL
)
2149 SSL_CTX_flush_sessions(a
, 0);
2151 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
2153 if (a
->sessions
!= NULL
)
2154 lh_SSL_SESSION_free(a
->sessions
);
2156 if (a
->cert_store
!= NULL
)
2157 X509_STORE_free(a
->cert_store
);
2158 if (a
->cipher_list
!= NULL
)
2159 sk_SSL_CIPHER_free(a
->cipher_list
);
2160 if (a
->cipher_list_by_id
!= NULL
)
2161 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
2162 if (a
->cert
!= NULL
)
2163 ssl_cert_free(a
->cert
);
2164 if (a
->client_CA
!= NULL
)
2165 sk_X509_NAME_pop_free(a
->client_CA
, X509_NAME_free
);
2166 if (a
->extra_certs
!= NULL
)
2167 sk_X509_pop_free(a
->extra_certs
, X509_free
);
2168 #if 0 /* This should never be done, since it
2169 * removes a global database */
2170 if (a
->comp_methods
!= NULL
)
2171 sk_SSL_COMP_pop_free(a
->comp_methods
, SSL_COMP_free
);
2173 a
->comp_methods
= NULL
;
2176 #ifndef OPENSSL_NO_SRTP
2177 if (a
->srtp_profiles
)
2178 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
2181 #ifndef OPENSSL_NO_PSK
2182 if (a
->psk_identity_hint
)
2183 OPENSSL_free(a
->psk_identity_hint
);
2185 #ifndef OPENSSL_NO_SRP
2186 SSL_CTX_SRP_CTX_free(a
);
2188 #ifndef OPENSSL_NO_ENGINE
2189 if (a
->client_cert_engine
)
2190 ENGINE_finish(a
->client_cert_engine
);
2193 #ifndef OPENSSL_NO_BUF_FREELISTS
2194 if (a
->wbuf_freelist
)
2195 ssl_buf_freelist_free(a
->wbuf_freelist
);
2196 if (a
->rbuf_freelist
)
2197 ssl_buf_freelist_free(a
->rbuf_freelist
);
2199 #ifndef OPENSSL_NO_TLSEXT
2200 # ifndef OPENSSL_NO_EC
2201 if (a
->tlsext_ecpointformatlist
)
2202 OPENSSL_free(a
->tlsext_ecpointformatlist
);
2203 if (a
->tlsext_ellipticcurvelist
)
2204 OPENSSL_free(a
->tlsext_ellipticcurvelist
);
2205 # endif /* OPENSSL_NO_EC */
2206 if (a
->alpn_client_proto_list
!= NULL
)
2207 OPENSSL_free(a
->alpn_client_proto_list
);
2213 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
2215 ctx
->default_passwd_callback
= cb
;
2218 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
2220 ctx
->default_passwd_callback_userdata
= u
;
2223 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
2224 int (*cb
) (X509_STORE_CTX
*, void *),
2227 ctx
->app_verify_callback
= cb
;
2228 ctx
->app_verify_arg
= arg
;
2231 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
2232 int (*cb
) (int, X509_STORE_CTX
*))
2234 ctx
->verify_mode
= mode
;
2235 ctx
->default_verify_callback
= cb
;
2238 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
2240 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
2243 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
),
2246 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
2249 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
2251 ssl_cert_set_cert_cb(s
->cert
, cb
, arg
);
2254 void ssl_set_cert_masks(CERT
*c
, const SSL_CIPHER
*cipher
)
2257 int rsa_enc
, rsa_tmp
, rsa_sign
, dh_tmp
, dh_rsa
, dh_dsa
, dsa_sign
;
2258 int rsa_enc_export
, dh_rsa_export
, dh_dsa_export
;
2259 int rsa_tmp_export
, dh_tmp_export
, kl
;
2260 unsigned long mask_k
, mask_a
, emask_k
, emask_a
;
2261 #ifndef OPENSSL_NO_ECDSA
2262 int have_ecc_cert
, ecdsa_ok
;
2264 #ifndef OPENSSL_NO_ECDH
2265 int have_ecdh_tmp
, ecdh_ok
, ecc_pkey_size
;
2267 #ifndef OPENSSL_NO_EC
2269 EVP_PKEY
*ecc_pkey
= NULL
;
2270 int signature_nid
= 0, pk_nid
= 0, md_nid
= 0;
2275 kl
= SSL_C_EXPORT_PKEYLENGTH(cipher
);
2277 #ifndef OPENSSL_NO_RSA
2278 rsa_tmp
= (c
->rsa_tmp
!= NULL
|| c
->rsa_tmp_cb
!= NULL
);
2279 rsa_tmp_export
= (c
->rsa_tmp_cb
!= NULL
||
2280 (rsa_tmp
&& RSA_size(c
->rsa_tmp
) * 8 <= kl
));
2282 rsa_tmp
= rsa_tmp_export
= 0;
2284 #ifndef OPENSSL_NO_DH
2285 dh_tmp
= (c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
);
2286 dh_tmp_export
= (c
->dh_tmp_cb
!= NULL
||
2287 (dh_tmp
&& DH_size(c
->dh_tmp
) * 8 <= kl
));
2289 dh_tmp
= dh_tmp_export
= 0;
2292 #ifndef OPENSSL_NO_ECDH
2293 have_ecdh_tmp
= (c
->ecdh_tmp
|| c
->ecdh_tmp_cb
|| c
->ecdh_tmp_auto
);
2295 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_ENC
]);
2296 rsa_enc
= cpk
->valid_flags
& CERT_PKEY_VALID
;
2297 rsa_enc_export
= (rsa_enc
&& EVP_PKEY_size(cpk
->privatekey
) * 8 <= kl
);
2298 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_SIGN
]);
2299 rsa_sign
= cpk
->valid_flags
& CERT_PKEY_SIGN
;
2300 cpk
= &(c
->pkeys
[SSL_PKEY_DSA_SIGN
]);
2301 dsa_sign
= cpk
->valid_flags
& CERT_PKEY_SIGN
;
2302 cpk
= &(c
->pkeys
[SSL_PKEY_DH_RSA
]);
2303 dh_rsa
= cpk
->valid_flags
& CERT_PKEY_VALID
;
2304 dh_rsa_export
= (dh_rsa
&& EVP_PKEY_size(cpk
->privatekey
) * 8 <= kl
);
2305 cpk
= &(c
->pkeys
[SSL_PKEY_DH_DSA
]);
2306 /* FIX THIS EAY EAY EAY */
2307 dh_dsa
= cpk
->valid_flags
& CERT_PKEY_VALID
;
2308 dh_dsa_export
= (dh_dsa
&& EVP_PKEY_size(cpk
->privatekey
) * 8 <= kl
);
2309 cpk
= &(c
->pkeys
[SSL_PKEY_ECC
]);
2310 #ifndef OPENSSL_NO_EC
2311 have_ecc_cert
= cpk
->valid_flags
& CERT_PKEY_VALID
;
2320 "rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2321 rsa_tmp
, rsa_tmp_export
, dh_tmp
, have_ecdh_tmp
, rsa_enc
,
2322 rsa_enc_export
, rsa_sign
, dsa_sign
, dh_rsa
, dh_dsa
);
2325 cpk
= &(c
->pkeys
[SSL_PKEY_GOST01
]);
2326 if (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
) {
2327 mask_k
|= SSL_kGOST
;
2328 mask_a
|= SSL_aGOST01
;
2330 cpk
= &(c
->pkeys
[SSL_PKEY_GOST94
]);
2331 if (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
) {
2332 mask_k
|= SSL_kGOST
;
2333 mask_a
|= SSL_aGOST94
;
2336 if (rsa_enc
|| (rsa_tmp
&& rsa_sign
))
2338 if (rsa_enc_export
|| (rsa_tmp_export
&& (rsa_sign
|| rsa_enc
)))
2339 emask_k
|= SSL_kRSA
;
2342 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
2343 if ((dh_tmp
|| dh_rsa
|| dh_dsa
) && (rsa_enc
|| rsa_sign
|| dsa_sign
))
2345 if ((dh_tmp_export
|| dh_rsa_export
|| dh_dsa_export
) &&
2346 (rsa_enc
|| rsa_sign
|| dsa_sign
))
2347 emask_k
|= SSL_kEDH
;
2351 emask_k
|= SSL_kEDH
;
2359 emask_k
|= SSL_kDHr
;
2364 emask_k
|= SSL_kDHd
;
2366 if (mask_k
& (SSL_kDHr
| SSL_kDHd
))
2369 if (rsa_enc
|| rsa_sign
) {
2371 emask_a
|= SSL_aRSA
;
2376 emask_a
|= SSL_aDSS
;
2379 mask_a
|= SSL_aNULL
;
2380 emask_a
|= SSL_aNULL
;
2382 #ifndef OPENSSL_NO_KRB5
2383 mask_k
|= SSL_kKRB5
;
2384 mask_a
|= SSL_aKRB5
;
2385 emask_k
|= SSL_kKRB5
;
2386 emask_a
|= SSL_aKRB5
;
2390 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
2391 * depending on the key usage extension.
2393 #ifndef OPENSSL_NO_EC
2394 if (have_ecc_cert
) {
2395 cpk
= &c
->pkeys
[SSL_PKEY_ECC
];
2397 /* This call populates extension flags (ex_flags) */
2398 X509_check_purpose(x
, -1, 0);
2399 # ifndef OPENSSL_NO_ECDH
2400 ecdh_ok
= (x
->ex_flags
& EXFLAG_KUSAGE
) ?
2401 (x
->ex_kusage
& X509v3_KU_KEY_AGREEMENT
) : 1;
2403 ecdsa_ok
= (x
->ex_flags
& EXFLAG_KUSAGE
) ?
2404 (x
->ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
) : 1;
2405 if (!(cpk
->valid_flags
& CERT_PKEY_SIGN
))
2407 ecc_pkey
= X509_get_pubkey(x
);
2408 # ifndef OPENSSL_NO_ECDH
2409 ecc_pkey_size
= (ecc_pkey
!= NULL
) ? EVP_PKEY_bits(ecc_pkey
) : 0;
2411 EVP_PKEY_free(ecc_pkey
);
2412 if ((x
->sig_alg
) && (x
->sig_alg
->algorithm
)) {
2413 signature_nid
= OBJ_obj2nid(x
->sig_alg
->algorithm
);
2414 OBJ_find_sigid_algs(signature_nid
, &md_nid
, &pk_nid
);
2416 # ifndef OPENSSL_NO_ECDH
2419 if (pk_nid
== NID_rsaEncryption
|| pk_nid
== NID_rsa
) {
2420 mask_k
|= SSL_kECDHr
;
2421 mask_a
|= SSL_aECDH
;
2422 if (ecc_pkey_size
<= 163) {
2423 emask_k
|= SSL_kECDHr
;
2424 emask_a
|= SSL_aECDH
;
2428 if (pk_nid
== NID_X9_62_id_ecPublicKey
) {
2429 mask_k
|= SSL_kECDHe
;
2430 mask_a
|= SSL_aECDH
;
2431 if (ecc_pkey_size
<= 163) {
2432 emask_k
|= SSL_kECDHe
;
2433 emask_a
|= SSL_aECDH
;
2438 # ifndef OPENSSL_NO_ECDSA
2440 mask_a
|= SSL_aECDSA
;
2441 emask_a
|= SSL_aECDSA
;
2447 #ifndef OPENSSL_NO_ECDH
2448 if (have_ecdh_tmp
) {
2449 mask_k
|= SSL_kEECDH
;
2450 emask_k
|= SSL_kEECDH
;
2454 #ifndef OPENSSL_NO_PSK
2457 emask_k
|= SSL_kPSK
;
2458 emask_a
|= SSL_aPSK
;
2463 c
->export_mask_k
= emask_k
;
2464 c
->export_mask_a
= emask_a
;
2468 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2469 #define ku_reject(x, usage) \
2470 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2472 #ifndef OPENSSL_NO_ECDH
2474 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
2476 unsigned long alg_k
, alg_a
;
2477 EVP_PKEY
*pkey
= NULL
;
2479 int signature_nid
= 0, md_nid
= 0, pk_nid
= 0;
2480 const SSL_CIPHER
*cs
= s
->s3
->tmp
.new_cipher
;
2482 alg_k
= cs
->algorithm_mkey
;
2483 alg_a
= cs
->algorithm_auth
;
2485 if (SSL_C_IS_EXPORT(cs
)) {
2486 /* ECDH key length in export ciphers must be <= 163 bits */
2487 pkey
= X509_get_pubkey(x
);
2490 keysize
= EVP_PKEY_bits(pkey
);
2491 EVP_PKEY_free(pkey
);
2496 /* This call populates the ex_flags field correctly */
2497 X509_check_purpose(x
, -1, 0);
2498 if ((x
->sig_alg
) && (x
->sig_alg
->algorithm
)) {
2499 signature_nid
= OBJ_obj2nid(x
->sig_alg
->algorithm
);
2500 OBJ_find_sigid_algs(signature_nid
, &md_nid
, &pk_nid
);
2502 if (alg_k
& SSL_kECDHe
|| alg_k
& SSL_kECDHr
) {
2503 /* key usage, if present, must allow key agreement */
2504 if (ku_reject(x
, X509v3_KU_KEY_AGREEMENT
)) {
2505 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2506 SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT
);
2509 if ((alg_k
& SSL_kECDHe
) && TLS1_get_version(s
) < TLS1_2_VERSION
) {
2510 /* signature alg must be ECDSA */
2511 if (pk_nid
!= NID_X9_62_id_ecPublicKey
) {
2512 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2513 SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE
);
2517 if ((alg_k
& SSL_kECDHr
) && TLS1_get_version(s
) < TLS1_2_VERSION
) {
2518 /* signature alg must be RSA */
2520 if (pk_nid
!= NID_rsaEncryption
&& pk_nid
!= NID_rsa
) {
2521 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2522 SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE
);
2527 if (alg_a
& SSL_aECDSA
) {
2528 /* key usage, if present, must allow signing */
2529 if (ku_reject(x
, X509v3_KU_DIGITAL_SIGNATURE
)) {
2530 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2531 SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
2536 return 1; /* all checks are ok */
2541 static int ssl_get_server_cert_index(const SSL
*s
)
2544 idx
= ssl_cipher_get_cert_index(s
->s3
->tmp
.new_cipher
);
2545 if (idx
== SSL_PKEY_RSA_ENC
&& !s
->cert
->pkeys
[SSL_PKEY_RSA_ENC
].x509
)
2546 idx
= SSL_PKEY_RSA_SIGN
;
2548 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX
, ERR_R_INTERNAL_ERROR
);
2552 CERT_PKEY
*ssl_get_server_send_pkey(const SSL
*s
)
2558 if (!s
->s3
|| !s
->s3
->tmp
.new_cipher
)
2560 ssl_set_cert_masks(c
, s
->s3
->tmp
.new_cipher
);
2562 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2564 * Broken protocol test: return last used certificate: which may mismatch
2567 if (c
->cert_flags
& SSL_CERT_FLAG_BROKEN_PROTOCOL
)
2571 i
= ssl_get_server_cert_index(s
);
2573 /* This may or may not be an error. */
2578 return &c
->pkeys
[i
];
2581 EVP_PKEY
*ssl_get_sign_pkey(SSL
*s
, const SSL_CIPHER
*cipher
,
2584 unsigned long alg_a
;
2588 alg_a
= cipher
->algorithm_auth
;
2591 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2593 * Broken protocol test: use last key: which may mismatch the one
2596 if (c
->cert_flags
& SSL_CERT_FLAG_BROKEN_PROTOCOL
)
2597 idx
= c
->key
- c
->pkeys
;
2601 if ((alg_a
& SSL_aDSS
) &&
2602 (c
->pkeys
[SSL_PKEY_DSA_SIGN
].privatekey
!= NULL
))
2603 idx
= SSL_PKEY_DSA_SIGN
;
2604 else if (alg_a
& SSL_aRSA
) {
2605 if (c
->pkeys
[SSL_PKEY_RSA_SIGN
].privatekey
!= NULL
)
2606 idx
= SSL_PKEY_RSA_SIGN
;
2607 else if (c
->pkeys
[SSL_PKEY_RSA_ENC
].privatekey
!= NULL
)
2608 idx
= SSL_PKEY_RSA_ENC
;
2609 } else if ((alg_a
& SSL_aECDSA
) &&
2610 (c
->pkeys
[SSL_PKEY_ECC
].privatekey
!= NULL
))
2613 SSLerr(SSL_F_SSL_GET_SIGN_PKEY
, ERR_R_INTERNAL_ERROR
);
2617 *pmd
= c
->pkeys
[idx
].digest
;
2618 return c
->pkeys
[idx
].privatekey
;
2621 #ifndef OPENSSL_NO_TLSEXT
2622 int ssl_get_server_cert_serverinfo(SSL
*s
, const unsigned char **serverinfo
,
2623 size_t *serverinfo_length
)
2627 *serverinfo_length
= 0;
2630 i
= ssl_get_server_cert_index(s
);
2634 if (c
->pkeys
[i
].serverinfo
== NULL
)
2637 *serverinfo
= c
->pkeys
[i
].serverinfo
;
2638 *serverinfo_length
= c
->pkeys
[i
].serverinfo_length
;
2643 void ssl_update_cache(SSL
*s
, int mode
)
2648 * If the session_id_length is 0, we are not supposed to cache it, and it
2649 * would be rather hard to do anyway :-)
2651 if (s
->session
->session_id_length
== 0)
2654 i
= s
->session_ctx
->session_cache_mode
;
2655 if ((i
& mode
) && (!s
->hit
)
2656 && ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
)
2657 || SSL_CTX_add_session(s
->session_ctx
, s
->session
))
2658 && (s
->session_ctx
->new_session_cb
!= NULL
)) {
2659 CRYPTO_add(&s
->session
->references
, 1, CRYPTO_LOCK_SSL_SESSION
);
2660 if (!s
->session_ctx
->new_session_cb(s
, s
->session
))
2661 SSL_SESSION_free(s
->session
);
2664 /* auto flush every 255 connections */
2665 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
2666 if ((((mode
& SSL_SESS_CACHE_CLIENT
)
2667 ? s
->session_ctx
->stats
.sess_connect_good
2668 : s
->session_ctx
->stats
.sess_accept_good
) & 0xff) == 0xff) {
2669 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
2674 const SSL_METHOD
*SSL_CTX_get_ssl_method(SSL_CTX
*ctx
)
2679 const SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
2684 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
2689 if (s
->method
!= meth
) {
2690 if (s
->handshake_func
!= NULL
)
2691 conn
= (s
->handshake_func
== s
->method
->ssl_connect
);
2693 if (s
->method
->version
== meth
->version
)
2696 s
->method
->ssl_free(s
);
2698 ret
= s
->method
->ssl_new(s
);
2702 s
->handshake_func
= meth
->ssl_connect
;
2704 s
->handshake_func
= meth
->ssl_accept
;
2709 int SSL_get_error(const SSL
*s
, int i
)
2716 return (SSL_ERROR_NONE
);
2719 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
2720 * where we do encode the error
2722 if ((l
= ERR_peek_error()) != 0) {
2723 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
2724 return (SSL_ERROR_SYSCALL
);
2726 return (SSL_ERROR_SSL
);
2729 if ((i
< 0) && SSL_want_read(s
)) {
2730 bio
= SSL_get_rbio(s
);
2731 if (BIO_should_read(bio
))
2732 return (SSL_ERROR_WANT_READ
);
2733 else if (BIO_should_write(bio
))
2735 * This one doesn't make too much sense ... We never try to write
2736 * to the rbio, and an application program where rbio and wbio
2737 * are separate couldn't even know what it should wait for.
2738 * However if we ever set s->rwstate incorrectly (so that we have
2739 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
2740 * wbio *are* the same, this test works around that bug; so it
2741 * might be safer to keep it.
2743 return (SSL_ERROR_WANT_WRITE
);
2744 else if (BIO_should_io_special(bio
)) {
2745 reason
= BIO_get_retry_reason(bio
);
2746 if (reason
== BIO_RR_CONNECT
)
2747 return (SSL_ERROR_WANT_CONNECT
);
2748 else if (reason
== BIO_RR_ACCEPT
)
2749 return (SSL_ERROR_WANT_ACCEPT
);
2751 return (SSL_ERROR_SYSCALL
); /* unknown */
2755 if ((i
< 0) && SSL_want_write(s
)) {
2756 bio
= SSL_get_wbio(s
);
2757 if (BIO_should_write(bio
))
2758 return (SSL_ERROR_WANT_WRITE
);
2759 else if (BIO_should_read(bio
))
2761 * See above (SSL_want_read(s) with BIO_should_write(bio))
2763 return (SSL_ERROR_WANT_READ
);
2764 else if (BIO_should_io_special(bio
)) {
2765 reason
= BIO_get_retry_reason(bio
);
2766 if (reason
== BIO_RR_CONNECT
)
2767 return (SSL_ERROR_WANT_CONNECT
);
2768 else if (reason
== BIO_RR_ACCEPT
)
2769 return (SSL_ERROR_WANT_ACCEPT
);
2771 return (SSL_ERROR_SYSCALL
);
2774 if ((i
< 0) && SSL_want_x509_lookup(s
)) {
2775 return (SSL_ERROR_WANT_X509_LOOKUP
);
2779 if (s
->version
== SSL2_VERSION
) {
2780 /* assume it is the socket being closed */
2781 return (SSL_ERROR_ZERO_RETURN
);
2783 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
2784 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
2785 return (SSL_ERROR_ZERO_RETURN
);
2788 return (SSL_ERROR_SYSCALL
);
2791 int SSL_do_handshake(SSL
*s
)
2795 if (s
->handshake_func
== NULL
) {
2796 SSLerr(SSL_F_SSL_DO_HANDSHAKE
, SSL_R_CONNECTION_TYPE_NOT_SET
);
2800 s
->method
->ssl_renegotiate_check(s
);
2802 if (SSL_in_init(s
) || SSL_in_before(s
)) {
2803 ret
= s
->handshake_func(s
);
2809 * For the next 2 functions, SSL_clear() sets shutdown and so one of these
2810 * calls will reset it
2812 void SSL_set_accept_state(SSL
*s
)
2816 s
->state
= SSL_ST_ACCEPT
| SSL_ST_BEFORE
;
2817 s
->handshake_func
= s
->method
->ssl_accept
;
2818 /* clear the current cipher */
2819 ssl_clear_cipher_ctx(s
);
2820 ssl_clear_hash_ctx(&s
->read_hash
);
2821 ssl_clear_hash_ctx(&s
->write_hash
);
2824 void SSL_set_connect_state(SSL
*s
)
2828 s
->state
= SSL_ST_CONNECT
| SSL_ST_BEFORE
;
2829 s
->handshake_func
= s
->method
->ssl_connect
;
2830 /* clear the current cipher */
2831 ssl_clear_cipher_ctx(s
);
2832 ssl_clear_hash_ctx(&s
->read_hash
);
2833 ssl_clear_hash_ctx(&s
->write_hash
);
2836 int ssl_undefined_function(SSL
*s
)
2838 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2842 int ssl_undefined_void_function(void)
2844 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,
2845 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2849 int ssl_undefined_const_function(const SSL
*s
)
2851 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION
,
2852 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2856 SSL_METHOD
*ssl_bad_method(int ver
)
2858 SSLerr(SSL_F_SSL_BAD_METHOD
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2862 const char *SSL_get_version(const SSL
*s
)
2864 if (s
->version
== TLS1_2_VERSION
)
2866 else if (s
->version
== TLS1_1_VERSION
)
2868 else if (s
->version
== TLS1_VERSION
)
2870 else if (s
->version
== SSL3_VERSION
)
2872 else if (s
->version
== SSL2_VERSION
)
2874 else if (s
->version
== DTLS1_BAD_VER
)
2875 return ("DTLSv0.9");
2876 else if (s
->version
== DTLS1_VERSION
)
2878 else if (s
->version
== DTLS1_2_VERSION
)
2879 return ("DTLSv1.2");
2884 SSL
*SSL_dup(SSL
*s
)
2886 STACK_OF(X509_NAME
) *sk
;
2891 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
2894 ret
->version
= s
->version
;
2895 ret
->type
= s
->type
;
2896 ret
->method
= s
->method
;
2898 if (s
->session
!= NULL
) {
2899 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2900 SSL_copy_session_id(ret
, s
);
2903 * No session has been established yet, so we have to expect that
2904 * s->cert or ret->cert will be changed later -- they should not both
2905 * point to the same object, and thus we can't use
2906 * SSL_copy_session_id.
2909 ret
->method
->ssl_free(ret
);
2910 ret
->method
= s
->method
;
2911 ret
->method
->ssl_new(ret
);
2913 if (s
->cert
!= NULL
) {
2914 if (ret
->cert
!= NULL
) {
2915 ssl_cert_free(ret
->cert
);
2917 ret
->cert
= ssl_cert_dup(s
->cert
);
2918 if (ret
->cert
== NULL
)
2922 SSL_set_session_id_context(ret
, s
->sid_ctx
, s
->sid_ctx_length
);
2925 ret
->options
= s
->options
;
2926 ret
->mode
= s
->mode
;
2927 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
2928 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
2929 ret
->msg_callback
= s
->msg_callback
;
2930 ret
->msg_callback_arg
= s
->msg_callback_arg
;
2931 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
2932 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
2933 ret
->generate_session_id
= s
->generate_session_id
;
2935 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
2937 ret
->debug
= s
->debug
;
2939 /* copy app data, a little dangerous perhaps */
2940 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
2943 /* setup rbio, and wbio */
2944 if (s
->rbio
!= NULL
) {
2945 if (!BIO_dup_state(s
->rbio
, (char *)&ret
->rbio
))
2948 if (s
->wbio
!= NULL
) {
2949 if (s
->wbio
!= s
->rbio
) {
2950 if (!BIO_dup_state(s
->wbio
, (char *)&ret
->wbio
))
2953 ret
->wbio
= ret
->rbio
;
2955 ret
->rwstate
= s
->rwstate
;
2956 ret
->in_handshake
= s
->in_handshake
;
2957 ret
->handshake_func
= s
->handshake_func
;
2958 ret
->server
= s
->server
;
2959 ret
->renegotiate
= s
->renegotiate
;
2960 ret
->new_session
= s
->new_session
;
2961 ret
->quiet_shutdown
= s
->quiet_shutdown
;
2962 ret
->shutdown
= s
->shutdown
;
2963 ret
->state
= s
->state
; /* SSL_dup does not really work at any state,
2965 ret
->rstate
= s
->rstate
;
2966 ret
->init_num
= 0; /* would have to copy ret->init_buf,
2967 * ret->init_msg, ret->init_num,
2971 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
2973 /* dup the cipher_list and cipher_list_by_id stacks */
2974 if (s
->cipher_list
!= NULL
) {
2975 if ((ret
->cipher_list
= sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
2978 if (s
->cipher_list_by_id
!= NULL
)
2979 if ((ret
->cipher_list_by_id
= sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
2983 /* Dup the client_CA list */
2984 if (s
->client_CA
!= NULL
) {
2985 if ((sk
= sk_X509_NAME_dup(s
->client_CA
)) == NULL
)
2987 ret
->client_CA
= sk
;
2988 for (i
= 0; i
< sk_X509_NAME_num(sk
); i
++) {
2989 xn
= sk_X509_NAME_value(sk
, i
);
2990 if (sk_X509_NAME_set(sk
, i
, X509_NAME_dup(xn
)) == NULL
) {
3006 void ssl_clear_cipher_ctx(SSL
*s
)
3008 if (s
->enc_read_ctx
!= NULL
) {
3009 EVP_CIPHER_CTX_cleanup(s
->enc_read_ctx
);
3010 OPENSSL_free(s
->enc_read_ctx
);
3011 s
->enc_read_ctx
= NULL
;
3013 if (s
->enc_write_ctx
!= NULL
) {
3014 EVP_CIPHER_CTX_cleanup(s
->enc_write_ctx
);
3015 OPENSSL_free(s
->enc_write_ctx
);
3016 s
->enc_write_ctx
= NULL
;
3018 #ifndef OPENSSL_NO_COMP
3019 if (s
->expand
!= NULL
) {
3020 COMP_CTX_free(s
->expand
);
3023 if (s
->compress
!= NULL
) {
3024 COMP_CTX_free(s
->compress
);
3030 X509
*SSL_get_certificate(const SSL
*s
)
3032 if (s
->cert
!= NULL
)
3033 return (s
->cert
->key
->x509
);
3038 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
3040 if (s
->cert
!= NULL
)
3041 return (s
->cert
->key
->privatekey
);
3046 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
3048 if (ctx
->cert
!= NULL
)
3049 return ctx
->cert
->key
->x509
;
3054 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
3056 if (ctx
->cert
!= NULL
)
3057 return ctx
->cert
->key
->privatekey
;
3062 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
3064 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
3065 return (s
->session
->cipher
);
3069 #ifdef OPENSSL_NO_COMP
3070 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
3075 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
3081 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
3083 if (s
->compress
!= NULL
)
3084 return (s
->compress
->meth
);
3088 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
3090 if (s
->expand
!= NULL
)
3091 return (s
->expand
->meth
);
3096 int ssl_init_wbio_buffer(SSL
*s
, int push
)
3100 if (s
->bbio
== NULL
) {
3101 bbio
= BIO_new(BIO_f_buffer());
3107 if (s
->bbio
== s
->wbio
)
3108 s
->wbio
= BIO_pop(s
->wbio
);
3110 (void)BIO_reset(bbio
);
3111 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
3112 if (!BIO_set_read_buffer_size(bbio
, 1)) {
3113 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
, ERR_R_BUF_LIB
);
3117 if (s
->wbio
!= bbio
)
3118 s
->wbio
= BIO_push(bbio
, s
->wbio
);
3120 if (s
->wbio
== bbio
)
3121 s
->wbio
= BIO_pop(bbio
);
3126 void ssl_free_wbio_buffer(SSL
*s
)
3128 if (s
->bbio
== NULL
)
3131 if (s
->bbio
== s
->wbio
) {
3132 /* remove buffering */
3133 s
->wbio
= BIO_pop(s
->wbio
);
3134 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids
3135 * adding one more preprocessor symbol */
3136 assert(s
->wbio
!= NULL
);
3143 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
3145 ctx
->quiet_shutdown
= mode
;
3148 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
3150 return (ctx
->quiet_shutdown
);
3153 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
3155 s
->quiet_shutdown
= mode
;
3158 int SSL_get_quiet_shutdown(const SSL
*s
)
3160 return (s
->quiet_shutdown
);
3163 void SSL_set_shutdown(SSL
*s
, int mode
)
3168 int SSL_get_shutdown(const SSL
*s
)
3170 return (s
->shutdown
);
3173 int SSL_version(const SSL
*s
)
3175 return (s
->version
);
3178 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
3183 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
3185 CERT
*ocert
= ssl
->cert
;
3186 if (ssl
->ctx
== ctx
)
3188 #ifndef OPENSSL_NO_TLSEXT
3190 ctx
= ssl
->initial_ctx
;
3192 ssl
->cert
= ssl_cert_dup(ctx
->cert
);
3195 /* Preserve any already negotiated parameters */
3197 ssl
->cert
->peer_sigalgs
= ocert
->peer_sigalgs
;
3198 ssl
->cert
->peer_sigalgslen
= ocert
->peer_sigalgslen
;
3199 ocert
->peer_sigalgs
= NULL
;
3200 ssl
->cert
->ciphers_raw
= ocert
->ciphers_raw
;
3201 ssl
->cert
->ciphers_rawlen
= ocert
->ciphers_rawlen
;
3202 ocert
->ciphers_raw
= NULL
;
3204 for (i
= 0; i
< SSL_PKEY_NUM
; i
++) {
3205 ssl
->cert
->pkeys
[i
].digest
= ocert
->pkeys
[i
].digest
;
3207 #ifndef OPENSSL_NO_TLSEXT
3208 ssl
->cert
->alpn_proposed
= ocert
->alpn_proposed
;
3209 ssl
->cert
->alpn_proposed_len
= ocert
->alpn_proposed_len
;
3210 ocert
->alpn_proposed
= NULL
;
3211 ssl
->cert
->alpn_sent
= ocert
->alpn_sent
;
3213 if (!custom_exts_copy_flags(&ssl
->cert
->srv_ext
, &ocert
->srv_ext
))
3216 ssl_cert_free(ocert
);
3220 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
3221 * so setter APIs must prevent invalid lengths from entering the system.
3223 OPENSSL_assert(ssl
->sid_ctx_length
<= sizeof(ssl
->sid_ctx
));
3226 * If the session ID context matches that of the parent SSL_CTX,
3227 * inherit it from the new SSL_CTX as well. If however the context does
3228 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
3229 * leave it unchanged.
3231 if ((ssl
->ctx
!= NULL
) &&
3232 (ssl
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
3233 (memcmp(ssl
->sid_ctx
, ssl
->ctx
->sid_ctx
, ssl
->sid_ctx_length
) == 0)) {
3234 ssl
->sid_ctx_length
= ctx
->sid_ctx_length
;
3235 memcpy(&ssl
->sid_ctx
, &ctx
->sid_ctx
, sizeof(ssl
->sid_ctx
));
3238 CRYPTO_add(&ctx
->references
, 1, CRYPTO_LOCK_SSL_CTX
);
3239 if (ssl
->ctx
!= NULL
)
3240 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
3246 #ifndef OPENSSL_NO_STDIO
3247 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
3249 return (X509_STORE_set_default_paths(ctx
->cert_store
));
3252 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
3255 return (X509_STORE_load_locations(ctx
->cert_store
, CAfile
, CApath
));
3259 void SSL_set_info_callback(SSL
*ssl
,
3260 void (*cb
) (const SSL
*ssl
, int type
, int val
))
3262 ssl
->info_callback
= cb
;
3266 * One compiler (Diab DCC) doesn't like argument names in returned function
3269 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
3272 return ssl
->info_callback
;
3275 int SSL_state(const SSL
*ssl
)
3277 return (ssl
->state
);
3280 void SSL_set_state(SSL
*ssl
, int state
)
3285 void SSL_set_verify_result(SSL
*ssl
, long arg
)
3287 ssl
->verify_result
= arg
;
3290 long SSL_get_verify_result(const SSL
*ssl
)
3292 return (ssl
->verify_result
);
3295 int SSL_get_ex_new_index(long argl
, void *argp
, CRYPTO_EX_new
*new_func
,
3296 CRYPTO_EX_dup
*dup_func
, CRYPTO_EX_free
*free_func
)
3298 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL
, argl
, argp
,
3299 new_func
, dup_func
, free_func
);
3302 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
3304 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
3307 void *SSL_get_ex_data(const SSL
*s
, int idx
)
3309 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
3312 int SSL_CTX_get_ex_new_index(long argl
, void *argp
, CRYPTO_EX_new
*new_func
,
3313 CRYPTO_EX_dup
*dup_func
,
3314 CRYPTO_EX_free
*free_func
)
3316 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX
, argl
, argp
,
3317 new_func
, dup_func
, free_func
);
3320 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
3322 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
3325 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
3327 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
3335 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
3337 return (ctx
->cert_store
);
3340 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
3342 if (ctx
->cert_store
!= NULL
)
3343 X509_STORE_free(ctx
->cert_store
);
3344 ctx
->cert_store
= store
;
3347 int SSL_want(const SSL
*s
)
3349 return (s
->rwstate
);
3353 * \brief Set the callback for generating temporary RSA keys.
3354 * \param ctx the SSL context.
3355 * \param cb the callback
3358 #ifndef OPENSSL_NO_RSA
3359 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX
*ctx
, RSA
*(*cb
) (SSL
*ssl
,
3363 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_RSA_CB
, (void (*)(void))cb
);
3366 void SSL_set_tmp_rsa_callback(SSL
*ssl
, RSA
*(*cb
) (SSL
*ssl
,
3370 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_RSA_CB
, (void (*)(void))cb
);
3376 * \brief The RSA temporary key callback function.
3377 * \param ssl the SSL session.
3378 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3379 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3380 * of the required key in bits.
3381 * \return the temporary RSA key.
3382 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3385 RSA
*cb(SSL
*ssl
, int is_export
, int keylength
)
3391 * \brief Set the callback for generating temporary DH keys.
3392 * \param ctx the SSL context.
3393 * \param dh the callback
3396 #ifndef OPENSSL_NO_DH
3397 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,
3398 DH
*(*dh
) (SSL
*ssl
, int is_export
,
3401 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
3404 void SSL_set_tmp_dh_callback(SSL
*ssl
, DH
*(*dh
) (SSL
*ssl
, int is_export
,
3407 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
3411 #ifndef OPENSSL_NO_ECDH
3412 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX
*ctx
,
3413 EC_KEY
*(*ecdh
) (SSL
*ssl
, int is_export
,
3416 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_ECDH_CB
,
3417 (void (*)(void))ecdh
);
3420 void SSL_set_tmp_ecdh_callback(SSL
*ssl
,
3421 EC_KEY
*(*ecdh
) (SSL
*ssl
, int is_export
,
3424 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_ECDH_CB
, (void (*)(void))ecdh
);
3428 #ifndef OPENSSL_NO_PSK
3429 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
3431 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3432 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
,
3433 SSL_R_DATA_LENGTH_TOO_LONG
);
3436 if (ctx
->psk_identity_hint
!= NULL
)
3437 OPENSSL_free(ctx
->psk_identity_hint
);
3438 if (identity_hint
!= NULL
) {
3439 ctx
->psk_identity_hint
= BUF_strdup(identity_hint
);
3440 if (ctx
->psk_identity_hint
== NULL
)
3443 ctx
->psk_identity_hint
= NULL
;
3447 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
3452 if (s
->session
== NULL
)
3453 return 1; /* session not created yet, ignored */
3455 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3456 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
3459 if (s
->session
->psk_identity_hint
!= NULL
)
3460 OPENSSL_free(s
->session
->psk_identity_hint
);
3461 if (identity_hint
!= NULL
) {
3462 s
->session
->psk_identity_hint
= BUF_strdup(identity_hint
);
3463 if (s
->session
->psk_identity_hint
== NULL
)
3466 s
->session
->psk_identity_hint
= NULL
;
3470 const char *SSL_get_psk_identity_hint(const SSL
*s
)
3472 if (s
== NULL
|| s
->session
== NULL
)
3474 return (s
->session
->psk_identity_hint
);
3477 const char *SSL_get_psk_identity(const SSL
*s
)
3479 if (s
== NULL
|| s
->session
== NULL
)
3481 return (s
->session
->psk_identity
);
3484 void SSL_set_psk_client_callback(SSL
*s
,
3485 unsigned int (*cb
) (SSL
*ssl
,
3494 s
->psk_client_callback
= cb
;
3497 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
,
3498 unsigned int (*cb
) (SSL
*ssl
,
3507 ctx
->psk_client_callback
= cb
;
3510 void SSL_set_psk_server_callback(SSL
*s
,
3511 unsigned int (*cb
) (SSL
*ssl
,
3512 const char *identity
,
3517 s
->psk_server_callback
= cb
;
3520 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
,
3521 unsigned int (*cb
) (SSL
*ssl
,
3522 const char *identity
,
3527 ctx
->psk_server_callback
= cb
;
3531 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
3532 void (*cb
) (int write_p
, int version
,
3533 int content_type
, const void *buf
,
3534 size_t len
, SSL
*ssl
, void *arg
))
3536 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
3539 void SSL_set_msg_callback(SSL
*ssl
,
3540 void (*cb
) (int write_p
, int version
,
3541 int content_type
, const void *buf
,
3542 size_t len
, SSL
*ssl
, void *arg
))
3544 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
3548 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3549 * vairable, freeing EVP_MD_CTX previously stored in that variable, if any.
3550 * If EVP_MD pointer is passed, initializes ctx with this md Returns newly
3554 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
3556 ssl_clear_hash_ctx(hash
);
3557 *hash
= EVP_MD_CTX_create();
3558 if (*hash
== NULL
|| (md
&& EVP_DigestInit_ex(*hash
, md
, NULL
) <= 0)) {
3559 EVP_MD_CTX_destroy(*hash
);
3566 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
3570 EVP_MD_CTX_destroy(*hash
);
3574 void SSL_set_debug(SSL
*s
, int debug
)
3579 int SSL_cache_hit(SSL
*s
)
3584 int SSL_is_server(SSL
*s
)
3589 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
3590 # include "../crypto/bio/bss_file.c"
3593 IMPLEMENT_STACK_OF(SSL_CIPHER
)
3594 IMPLEMENT_STACK_OF(SSL_COMP
)
3595 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);