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 <openssl/objects.h>
151 #include <openssl/lhash.h>
152 #include <openssl/x509v3.h>
153 #include <openssl/rand.h>
154 #include <openssl/ocsp.h>
155 #ifndef OPENSSL_NO_DH
156 # include <openssl/dh.h>
158 #ifndef OPENSSL_NO_ENGINE
159 # include <openssl/engine.h>
162 const char *SSL_version_str
= OPENSSL_VERSION_TEXT
;
164 SSL3_ENC_METHOD ssl3_undef_enc_method
= {
166 * evil casts, but these functions are only called if there's a library
169 (int (*)(SSL
*, int))ssl_undefined_function
,
170 (int (*)(SSL
*, unsigned char *, int))ssl_undefined_function
,
171 ssl_undefined_function
,
172 (int (*)(SSL
*, unsigned char *, unsigned char *, int))
173 ssl_undefined_function
,
174 (int (*)(SSL
*, int))ssl_undefined_function
,
175 (int (*)(SSL
*, const char *, int, unsigned char *))
176 ssl_undefined_function
,
177 0, /* finish_mac_length */
178 (int (*)(SSL
*, int, unsigned char *))ssl_undefined_function
,
179 NULL
, /* client_finished_label */
180 0, /* client_finished_label_len */
181 NULL
, /* server_finished_label */
182 0, /* server_finished_label_len */
183 (int (*)(int))ssl_undefined_function
,
184 (int (*)(SSL
*, unsigned char *, size_t, const char *,
185 size_t, const unsigned char *, size_t,
186 int use_context
))ssl_undefined_function
,
189 int SSL_clear(SSL
*s
)
191 if (s
->method
== NULL
) {
192 SSLerr(SSL_F_SSL_CLEAR
, SSL_R_NO_METHOD_SPECIFIED
);
196 if (ssl_clear_bad_session(s
)) {
197 SSL_SESSION_free(s
->session
);
205 if (s
->renegotiate
) {
206 SSLerr(SSL_F_SSL_CLEAR
, ERR_R_INTERNAL_ERROR
);
212 s
->state
= SSL_ST_BEFORE
| ((s
->server
) ? SSL_ST_ACCEPT
: SSL_ST_CONNECT
);
214 s
->version
= s
->method
->version
;
215 s
->client_version
= s
->version
;
216 s
->rwstate
= SSL_NOTHING
;
218 BUF_MEM_free(s
->init_buf
);
220 ssl_clear_cipher_ctx(s
);
221 ssl_clear_hash_ctx(&s
->read_hash
);
222 ssl_clear_hash_ctx(&s
->write_hash
);
226 * Check to see if we were changed into a different method, if so, revert
227 * back if we are not doing session-id reuse.
229 if (!s
->in_handshake
&& (s
->session
== NULL
)
230 && (s
->method
!= s
->ctx
->method
)) {
231 s
->method
->ssl_free(s
);
232 s
->method
= s
->ctx
->method
;
233 if (!s
->method
->ssl_new(s
))
236 s
->method
->ssl_clear(s
);
238 RECORD_LAYER_clear(&s
->rlayer
);
243 /** Used to change an SSL_CTXs default SSL method type */
244 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
, const SSL_METHOD
*meth
)
246 STACK_OF(SSL_CIPHER
) *sk
;
250 sk
= ssl_create_cipher_list(ctx
->method
, &(ctx
->cipher_list
),
251 &(ctx
->cipher_list_by_id
),
252 SSL_DEFAULT_CIPHER_LIST
, ctx
->cert
);
253 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
254 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
,
255 SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
261 SSL
*SSL_new(SSL_CTX
*ctx
)
266 SSLerr(SSL_F_SSL_NEW
, SSL_R_NULL_SSL_CTX
);
269 if (ctx
->method
== NULL
) {
270 SSLerr(SSL_F_SSL_NEW
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
274 s
= OPENSSL_malloc(sizeof(*s
));
277 memset(s
, 0, sizeof(*s
));
279 RECORD_LAYER_init(&s
->rlayer
, s
);
281 s
->options
= ctx
->options
;
283 s
->max_cert_list
= ctx
->max_cert_list
;
286 * Earlier library versions used to copy the pointer to the CERT, not
287 * its contents; only when setting new parameters for the per-SSL
288 * copy, ssl_cert_new would be called (and the direct reference to
289 * the per-SSL_CTX settings would be lost, but those still were
290 * indirectly accessed for various purposes, and for that reason they
291 * used to be known as s->ctx->default_cert). Now we don't look at the
292 * SSL_CTX's CERT after having duplicated it once.
294 s
->cert
= ssl_cert_dup(ctx
->cert
);
298 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
299 s
->msg_callback
= ctx
->msg_callback
;
300 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
301 s
->verify_mode
= ctx
->verify_mode
;
302 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
303 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
304 OPENSSL_assert(s
->sid_ctx_length
<= sizeof s
->sid_ctx
);
305 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
306 s
->verify_callback
= ctx
->default_verify_callback
;
307 s
->generate_session_id
= ctx
->generate_session_id
;
309 s
->param
= X509_VERIFY_PARAM_new();
312 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
313 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
314 s
->max_send_fragment
= ctx
->max_send_fragment
;
316 CRYPTO_add(&ctx
->references
, 1, CRYPTO_LOCK_SSL_CTX
);
318 #ifndef OPENSSL_NO_TLSEXT
319 s
->tlsext_debug_cb
= 0;
320 s
->tlsext_debug_arg
= NULL
;
321 s
->tlsext_ticket_expected
= 0;
322 s
->tlsext_status_type
= -1;
323 s
->tlsext_status_expected
= 0;
324 s
->tlsext_ocsp_ids
= NULL
;
325 s
->tlsext_ocsp_exts
= NULL
;
326 s
->tlsext_ocsp_resp
= NULL
;
327 s
->tlsext_ocsp_resplen
= -1;
328 CRYPTO_add(&ctx
->references
, 1, CRYPTO_LOCK_SSL_CTX
);
329 s
->initial_ctx
= ctx
;
330 # ifndef OPENSSL_NO_EC
331 if (ctx
->tlsext_ecpointformatlist
) {
332 s
->tlsext_ecpointformatlist
=
333 BUF_memdup(ctx
->tlsext_ecpointformatlist
,
334 ctx
->tlsext_ecpointformatlist_length
);
335 if (!s
->tlsext_ecpointformatlist
)
337 s
->tlsext_ecpointformatlist_length
=
338 ctx
->tlsext_ecpointformatlist_length
;
340 if (ctx
->tlsext_ellipticcurvelist
) {
341 s
->tlsext_ellipticcurvelist
=
342 BUF_memdup(ctx
->tlsext_ellipticcurvelist
,
343 ctx
->tlsext_ellipticcurvelist_length
);
344 if (!s
->tlsext_ellipticcurvelist
)
346 s
->tlsext_ellipticcurvelist_length
=
347 ctx
->tlsext_ellipticcurvelist_length
;
350 # ifndef OPENSSL_NO_NEXTPROTONEG
351 s
->next_proto_negotiated
= NULL
;
354 if (s
->ctx
->alpn_client_proto_list
) {
355 s
->alpn_client_proto_list
=
356 OPENSSL_malloc(s
->ctx
->alpn_client_proto_list_len
);
357 if (s
->alpn_client_proto_list
== NULL
)
359 memcpy(s
->alpn_client_proto_list
, s
->ctx
->alpn_client_proto_list
,
360 s
->ctx
->alpn_client_proto_list_len
);
361 s
->alpn_client_proto_list_len
= s
->ctx
->alpn_client_proto_list_len
;
365 s
->verify_result
= X509_V_OK
;
367 s
->method
= ctx
->method
;
369 if (!s
->method
->ssl_new(s
))
373 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
378 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
380 #ifndef OPENSSL_NO_PSK
381 s
->psk_client_callback
= ctx
->psk_client_callback
;
382 s
->psk_server_callback
= ctx
->psk_server_callback
;
388 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
392 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
393 unsigned int sid_ctx_len
)
395 if (sid_ctx_len
> sizeof ctx
->sid_ctx
) {
396 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,
397 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
400 ctx
->sid_ctx_length
= sid_ctx_len
;
401 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
406 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
407 unsigned int sid_ctx_len
)
409 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
410 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,
411 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
414 ssl
->sid_ctx_length
= sid_ctx_len
;
415 memcpy(ssl
->sid_ctx
, sid_ctx
, sid_ctx_len
);
420 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
422 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX
);
423 ctx
->generate_session_id
= cb
;
424 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX
);
428 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
430 CRYPTO_w_lock(CRYPTO_LOCK_SSL
);
431 ssl
->generate_session_id
= cb
;
432 CRYPTO_w_unlock(CRYPTO_LOCK_SSL
);
436 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
440 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
441 * we can "construct" a session to give us the desired check - ie. to
442 * find if there's a session in the hash table that would conflict with
443 * any new session built out of this id/id_len and the ssl_version in use
448 if (id_len
> sizeof r
.session_id
)
451 r
.ssl_version
= ssl
->version
;
452 r
.session_id_length
= id_len
;
453 memcpy(r
.session_id
, id
, id_len
);
455 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX
);
456 p
= lh_SSL_SESSION_retrieve(ssl
->ctx
->sessions
, &r
);
457 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX
);
461 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
463 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
466 int SSL_set_purpose(SSL
*s
, int purpose
)
468 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
471 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
473 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
476 int SSL_set_trust(SSL
*s
, int trust
)
478 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
481 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
483 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
486 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
488 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
491 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
496 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
501 void SSL_certs_clear(SSL
*s
)
503 ssl_cert_clear_certs(s
->cert
);
506 void SSL_free(SSL
*s
)
513 i
= CRYPTO_add(&s
->references
, -1, CRYPTO_LOCK_SSL
);
521 fprintf(stderr
, "SSL_free, bad reference count\n");
526 X509_VERIFY_PARAM_free(s
->param
);
527 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
529 if (s
->bbio
!= NULL
) {
530 /* If the buffering BIO is in place, pop it off */
531 if (s
->bbio
== s
->wbio
) {
532 s
->wbio
= BIO_pop(s
->wbio
);
537 BIO_free_all(s
->rbio
);
538 if (s
->wbio
!= s
->rbio
)
539 BIO_free_all(s
->wbio
);
541 BUF_MEM_free(s
->init_buf
);
543 /* add extra stuff */
544 sk_SSL_CIPHER_free(s
->cipher_list
);
545 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
547 /* Make the next call work :-) */
548 if (s
->session
!= NULL
) {
549 ssl_clear_bad_session(s
);
550 SSL_SESSION_free(s
->session
);
553 ssl_clear_cipher_ctx(s
);
554 ssl_clear_hash_ctx(&s
->read_hash
);
555 ssl_clear_hash_ctx(&s
->write_hash
);
557 ssl_cert_free(s
->cert
);
558 /* Free up if allocated */
560 #ifndef OPENSSL_NO_TLSEXT
561 OPENSSL_free(s
->tlsext_hostname
);
562 SSL_CTX_free(s
->initial_ctx
);
563 # ifndef OPENSSL_NO_EC
564 OPENSSL_free(s
->tlsext_ecpointformatlist
);
565 OPENSSL_free(s
->tlsext_ellipticcurvelist
);
566 # endif /* OPENSSL_NO_EC */
567 sk_X509_EXTENSION_pop_free(s
->tlsext_ocsp_exts
, X509_EXTENSION_free
);
568 sk_OCSP_RESPID_pop_free(s
->tlsext_ocsp_ids
, OCSP_RESPID_free
);
569 OPENSSL_free(s
->tlsext_ocsp_resp
);
570 OPENSSL_free(s
->alpn_client_proto_list
);
573 sk_X509_NAME_pop_free(s
->client_CA
, X509_NAME_free
);
575 if (s
->method
!= NULL
)
576 s
->method
->ssl_free(s
);
578 RECORD_LAYER_release(&s
->rlayer
);
580 SSL_CTX_free(s
->ctx
);
582 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
583 OPENSSL_free(s
->next_proto_negotiated
);
586 #ifndef OPENSSL_NO_SRTP
587 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
593 void SSL_set_rbio(SSL
*s
, BIO
*rbio
)
596 BIO_free_all(s
->rbio
);
600 void SSL_set_wbio(SSL
*s
, BIO
*wbio
)
603 * If the output buffering BIO is still in place, remove it
605 if (s
->bbio
!= NULL
) {
606 if (s
->wbio
== s
->bbio
) {
607 s
->wbio
= s
->wbio
->next_bio
;
608 s
->bbio
->next_bio
= NULL
;
611 if (s
->wbio
!= wbio
&& s
->rbio
!= s
->wbio
)
612 BIO_free_all(s
->wbio
);
616 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
618 SSL_set_wbio(s
, wbio
);
619 SSL_set_rbio(s
, rbio
);
622 BIO
*SSL_get_rbio(const SSL
*s
)
627 BIO
*SSL_get_wbio(const SSL
*s
)
632 int SSL_get_fd(const SSL
*s
)
634 return (SSL_get_rfd(s
));
637 int SSL_get_rfd(const SSL
*s
)
643 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
649 int SSL_get_wfd(const SSL
*s
)
655 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
661 #ifndef OPENSSL_NO_SOCK
662 int SSL_set_fd(SSL
*s
, int fd
)
667 bio
= BIO_new(BIO_s_socket());
670 SSLerr(SSL_F_SSL_SET_FD
, ERR_R_BUF_LIB
);
673 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
674 SSL_set_bio(s
, bio
, bio
);
680 int SSL_set_wfd(SSL
*s
, int fd
)
685 if ((s
->rbio
== NULL
) || (BIO_method_type(s
->rbio
) != BIO_TYPE_SOCKET
)
686 || ((int)BIO_get_fd(s
->rbio
, NULL
) != fd
)) {
687 bio
= BIO_new(BIO_s_socket());
690 SSLerr(SSL_F_SSL_SET_WFD
, ERR_R_BUF_LIB
);
693 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
694 SSL_set_bio(s
, SSL_get_rbio(s
), bio
);
696 SSL_set_bio(s
, SSL_get_rbio(s
), SSL_get_rbio(s
));
702 int SSL_set_rfd(SSL
*s
, int fd
)
707 if ((s
->wbio
== NULL
) || (BIO_method_type(s
->wbio
) != BIO_TYPE_SOCKET
)
708 || ((int)BIO_get_fd(s
->wbio
, NULL
) != fd
)) {
709 bio
= BIO_new(BIO_s_socket());
712 SSLerr(SSL_F_SSL_SET_RFD
, ERR_R_BUF_LIB
);
715 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
716 SSL_set_bio(s
, bio
, SSL_get_wbio(s
));
718 SSL_set_bio(s
, SSL_get_wbio(s
), SSL_get_wbio(s
));
725 /* return length of latest Finished message we sent, copy to 'buf' */
726 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
731 ret
= s
->s3
->tmp
.finish_md_len
;
734 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
739 /* return length of latest Finished message we expected, copy to 'buf' */
740 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
745 ret
= s
->s3
->tmp
.peer_finish_md_len
;
748 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
753 int SSL_get_verify_mode(const SSL
*s
)
755 return (s
->verify_mode
);
758 int SSL_get_verify_depth(const SSL
*s
)
760 return X509_VERIFY_PARAM_get_depth(s
->param
);
763 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
764 return (s
->verify_callback
);
767 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
769 return (ctx
->verify_mode
);
772 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
774 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
777 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
778 return (ctx
->default_verify_callback
);
781 void SSL_set_verify(SSL
*s
, int mode
,
782 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
784 s
->verify_mode
= mode
;
785 if (callback
!= NULL
)
786 s
->verify_callback
= callback
;
789 void SSL_set_verify_depth(SSL
*s
, int depth
)
791 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
794 void SSL_set_read_ahead(SSL
*s
, int yes
)
796 RECORD_LAYER_set_read_ahead(&s
->rlayer
, yes
);
799 int SSL_get_read_ahead(const SSL
*s
)
801 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
804 int SSL_pending(const SSL
*s
)
807 * SSL_pending cannot work properly if read-ahead is enabled
808 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
809 * impossible to fix since SSL_pending cannot report errors that may be
810 * observed while scanning the new data. (Note that SSL_pending() is
811 * often used as a boolean value, so we'd better not return -1.)
813 return (s
->method
->ssl_pending(s
));
816 X509
*SSL_get_peer_certificate(const SSL
*s
)
820 if ((s
== NULL
) || (s
->session
== NULL
))
823 r
= s
->session
->peer
;
828 CRYPTO_add(&r
->references
, 1, CRYPTO_LOCK_X509
);
833 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
837 if ((s
== NULL
) || (s
->session
== NULL
)
838 || (s
->session
->sess_cert
== NULL
))
841 r
= s
->session
->sess_cert
->cert_chain
;
844 * If we are a client, cert_chain includes the peer's own certificate; if
845 * we are a server, it does not.
852 * Now in theory, since the calling process own 't' it should be safe to
853 * modify. We need to be able to read f without being hassled
855 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
857 /* Do we need to to SSL locking? */
858 if (!SSL_set_session(t
, SSL_get_session(f
))) {
863 * what if we are setup as SSLv2 but want to talk SSLv3 or vice-versa
865 if (t
->method
!= f
->method
) {
866 t
->method
->ssl_free(t
); /* cleanup current */
867 t
->method
= f
->method
; /* change method */
868 t
->method
->ssl_new(t
); /* setup new */
871 CRYPTO_add(&f
->cert
->references
, 1, CRYPTO_LOCK_SSL_CERT
);
872 ssl_cert_free(t
->cert
);
874 if (!SSL_set_session_id_context(t
, f
->sid_ctx
, f
->sid_ctx_length
)) {
881 /* Fix this so it checks all the valid key/cert options */
882 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
885 (ctx
->cert
->key
->x509
== NULL
)) {
886 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,
887 SSL_R_NO_CERTIFICATE_ASSIGNED
);
890 if (ctx
->cert
->key
->privatekey
== NULL
) {
891 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,
892 SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
895 return (X509_check_private_key
896 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
));
899 /* Fix this function so that it takes an optional type parameter */
900 int SSL_check_private_key(const SSL
*ssl
)
903 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, ERR_R_PASSED_NULL_PARAMETER
);
906 if (ssl
->cert
->key
->x509
== NULL
) {
907 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
910 if (ssl
->cert
->key
->privatekey
== NULL
) {
911 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
914 return (X509_check_private_key(ssl
->cert
->key
->x509
,
915 ssl
->cert
->key
->privatekey
));
918 int SSL_accept(SSL
*s
)
920 if (s
->handshake_func
== 0)
921 /* Not properly initialized yet */
922 SSL_set_accept_state(s
);
924 return (s
->method
->ssl_accept(s
));
927 int SSL_connect(SSL
*s
)
929 if (s
->handshake_func
== 0)
930 /* Not properly initialized yet */
931 SSL_set_connect_state(s
);
933 return (s
->method
->ssl_connect(s
));
936 long SSL_get_default_timeout(const SSL
*s
)
938 return (s
->method
->get_timeout());
941 int SSL_read(SSL
*s
, void *buf
, int num
)
943 if (s
->handshake_func
== 0) {
944 SSLerr(SSL_F_SSL_READ
, SSL_R_UNINITIALIZED
);
948 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
949 s
->rwstate
= SSL_NOTHING
;
952 return (s
->method
->ssl_read(s
, buf
, num
));
955 int SSL_peek(SSL
*s
, void *buf
, int num
)
957 if (s
->handshake_func
== 0) {
958 SSLerr(SSL_F_SSL_PEEK
, SSL_R_UNINITIALIZED
);
962 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
965 return (s
->method
->ssl_peek(s
, buf
, num
));
968 int SSL_write(SSL
*s
, const void *buf
, int num
)
970 if (s
->handshake_func
== 0) {
971 SSLerr(SSL_F_SSL_WRITE
, SSL_R_UNINITIALIZED
);
975 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
976 s
->rwstate
= SSL_NOTHING
;
977 SSLerr(SSL_F_SSL_WRITE
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
980 return (s
->method
->ssl_write(s
, buf
, num
));
983 int SSL_shutdown(SSL
*s
)
986 * Note that this function behaves differently from what one might
987 * expect. Return values are 0 for no success (yet), 1 for success; but
988 * calling it once is usually not enough, even if blocking I/O is used
989 * (see ssl3_shutdown).
992 if (s
->handshake_func
== 0) {
993 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
997 if ((s
!= NULL
) && !SSL_in_init(s
))
998 return (s
->method
->ssl_shutdown(s
));
1003 int SSL_renegotiate(SSL
*s
)
1005 if (s
->renegotiate
== 0)
1010 return (s
->method
->ssl_renegotiate(s
));
1013 int SSL_renegotiate_abbreviated(SSL
*s
)
1015 if (s
->renegotiate
== 0)
1020 return (s
->method
->ssl_renegotiate(s
));
1023 int SSL_renegotiate_pending(SSL
*s
)
1026 * becomes true when negotiation is requested; false again once a
1027 * handshake has finished
1029 return (s
->renegotiate
!= 0);
1032 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
1037 case SSL_CTRL_GET_READ_AHEAD
:
1038 return (RECORD_LAYER_get_read_ahead(&s
->rlayer
));
1039 case SSL_CTRL_SET_READ_AHEAD
:
1040 l
= RECORD_LAYER_get_read_ahead(&s
->rlayer
);
1041 RECORD_LAYER_set_read_ahead(&s
->rlayer
, larg
);
1044 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1045 s
->msg_callback_arg
= parg
;
1048 case SSL_CTRL_OPTIONS
:
1049 return (s
->options
|= larg
);
1050 case SSL_CTRL_CLEAR_OPTIONS
:
1051 return (s
->options
&= ~larg
);
1053 return (s
->mode
|= larg
);
1054 case SSL_CTRL_CLEAR_MODE
:
1055 return (s
->mode
&= ~larg
);
1056 case SSL_CTRL_GET_MAX_CERT_LIST
:
1057 return (s
->max_cert_list
);
1058 case SSL_CTRL_SET_MAX_CERT_LIST
:
1059 l
= s
->max_cert_list
;
1060 s
->max_cert_list
= larg
;
1062 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
1063 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
1065 s
->max_send_fragment
= larg
;
1067 case SSL_CTRL_GET_RI_SUPPORT
:
1069 return s
->s3
->send_connection_binding
;
1072 case SSL_CTRL_CERT_FLAGS
:
1073 return (s
->cert
->cert_flags
|= larg
);
1074 case SSL_CTRL_CLEAR_CERT_FLAGS
:
1075 return (s
->cert
->cert_flags
&= ~larg
);
1077 case SSL_CTRL_GET_RAW_CIPHERLIST
:
1079 if (s
->cert
->ciphers_raw
== NULL
)
1081 *(unsigned char **)parg
= s
->cert
->ciphers_raw
;
1082 return (int)s
->cert
->ciphers_rawlen
;
1084 return ssl_put_cipher_by_char(s
, NULL
, NULL
);
1085 case SSL_CTRL_GET_EXTMS_SUPPORT
:
1086 if (!s
->session
|| SSL_in_init(s
) || s
->in_handshake
)
1088 if (s
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
1093 return (s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
));
1097 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
1100 case SSL_CTRL_SET_MSG_CALLBACK
:
1101 s
->msg_callback
= (void (*)
1102 (int write_p
, int version
, int content_type
,
1103 const void *buf
, size_t len
, SSL
*ssl
,
1108 return (s
->method
->ssl_callback_ctrl(s
, cmd
, fp
));
1112 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
1114 return ctx
->sessions
;
1117 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
1120 /* For some cases with ctx == NULL perform syntax checks */
1123 #ifndef OPENSSL_NO_EC
1124 case SSL_CTRL_SET_CURVES_LIST
:
1125 return tls1_set_curves_list(NULL
, NULL
, parg
);
1127 case SSL_CTRL_SET_SIGALGS_LIST
:
1128 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
1129 return tls1_set_sigalgs_list(NULL
, parg
, 0);
1136 case SSL_CTRL_GET_READ_AHEAD
:
1137 return (ctx
->read_ahead
);
1138 case SSL_CTRL_SET_READ_AHEAD
:
1139 l
= ctx
->read_ahead
;
1140 ctx
->read_ahead
= larg
;
1143 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1144 ctx
->msg_callback_arg
= parg
;
1147 case SSL_CTRL_GET_MAX_CERT_LIST
:
1148 return (ctx
->max_cert_list
);
1149 case SSL_CTRL_SET_MAX_CERT_LIST
:
1150 l
= ctx
->max_cert_list
;
1151 ctx
->max_cert_list
= larg
;
1154 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
1155 l
= ctx
->session_cache_size
;
1156 ctx
->session_cache_size
= larg
;
1158 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
1159 return (ctx
->session_cache_size
);
1160 case SSL_CTRL_SET_SESS_CACHE_MODE
:
1161 l
= ctx
->session_cache_mode
;
1162 ctx
->session_cache_mode
= larg
;
1164 case SSL_CTRL_GET_SESS_CACHE_MODE
:
1165 return (ctx
->session_cache_mode
);
1167 case SSL_CTRL_SESS_NUMBER
:
1168 return (lh_SSL_SESSION_num_items(ctx
->sessions
));
1169 case SSL_CTRL_SESS_CONNECT
:
1170 return (ctx
->stats
.sess_connect
);
1171 case SSL_CTRL_SESS_CONNECT_GOOD
:
1172 return (ctx
->stats
.sess_connect_good
);
1173 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
1174 return (ctx
->stats
.sess_connect_renegotiate
);
1175 case SSL_CTRL_SESS_ACCEPT
:
1176 return (ctx
->stats
.sess_accept
);
1177 case SSL_CTRL_SESS_ACCEPT_GOOD
:
1178 return (ctx
->stats
.sess_accept_good
);
1179 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
1180 return (ctx
->stats
.sess_accept_renegotiate
);
1181 case SSL_CTRL_SESS_HIT
:
1182 return (ctx
->stats
.sess_hit
);
1183 case SSL_CTRL_SESS_CB_HIT
:
1184 return (ctx
->stats
.sess_cb_hit
);
1185 case SSL_CTRL_SESS_MISSES
:
1186 return (ctx
->stats
.sess_miss
);
1187 case SSL_CTRL_SESS_TIMEOUTS
:
1188 return (ctx
->stats
.sess_timeout
);
1189 case SSL_CTRL_SESS_CACHE_FULL
:
1190 return (ctx
->stats
.sess_cache_full
);
1191 case SSL_CTRL_OPTIONS
:
1192 return (ctx
->options
|= larg
);
1193 case SSL_CTRL_CLEAR_OPTIONS
:
1194 return (ctx
->options
&= ~larg
);
1196 return (ctx
->mode
|= larg
);
1197 case SSL_CTRL_CLEAR_MODE
:
1198 return (ctx
->mode
&= ~larg
);
1199 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
1200 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
1202 ctx
->max_send_fragment
= larg
;
1204 case SSL_CTRL_CERT_FLAGS
:
1205 return (ctx
->cert
->cert_flags
|= larg
);
1206 case SSL_CTRL_CLEAR_CERT_FLAGS
:
1207 return (ctx
->cert
->cert_flags
&= ~larg
);
1209 return (ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
));
1213 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
1216 case SSL_CTRL_SET_MSG_CALLBACK
:
1217 ctx
->msg_callback
= (void (*)
1218 (int write_p
, int version
, int content_type
,
1219 const void *buf
, size_t len
, SSL
*ssl
,
1224 return (ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
));
1228 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
1236 return ((l
> 0) ? 1 : -1);
1239 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
1240 const SSL_CIPHER
*const *bp
)
1244 l
= (*ap
)->id
- (*bp
)->id
;
1248 return ((l
> 0) ? 1 : -1);
1251 /** return a STACK of the ciphers available for the SSL and in order of
1253 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
1256 if (s
->cipher_list
!= NULL
) {
1257 return (s
->cipher_list
);
1258 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
1259 return (s
->ctx
->cipher_list
);
1265 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
1267 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
1269 ciphers
= SSL_get_ciphers(s
);
1272 ssl_set_client_disabled(s
);
1273 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
1274 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
1275 if (!ssl_cipher_disabled(s
, c
, SSL_SECOP_CIPHER_SUPPORTED
)) {
1277 sk
= sk_SSL_CIPHER_new_null();
1280 if (!sk_SSL_CIPHER_push(sk
, c
)) {
1281 sk_SSL_CIPHER_free(sk
);
1289 /** return a STACK of the ciphers available for the SSL and in order of
1291 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
1294 if (s
->cipher_list_by_id
!= NULL
) {
1295 return (s
->cipher_list_by_id
);
1296 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list_by_id
!= NULL
)) {
1297 return (s
->ctx
->cipher_list_by_id
);
1303 /** The old interface to get the same thing as SSL_get_ciphers() */
1304 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
1307 STACK_OF(SSL_CIPHER
) *sk
;
1311 sk
= SSL_get_ciphers(s
);
1312 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
1314 c
= sk_SSL_CIPHER_value(sk
, n
);
1320 /** specify the ciphers to be used by default by the SSL_CTX */
1321 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
1323 STACK_OF(SSL_CIPHER
) *sk
;
1325 sk
= ssl_create_cipher_list(ctx
->method
, &ctx
->cipher_list
,
1326 &ctx
->cipher_list_by_id
, str
, ctx
->cert
);
1328 * ssl_create_cipher_list may return an empty stack if it was unable to
1329 * find a cipher matching the given rule string (for example if the rule
1330 * string specifies a cipher which has been disabled). This is not an
1331 * error as far as ssl_create_cipher_list is concerned, and hence
1332 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
1336 else if (sk_SSL_CIPHER_num(sk
) == 0) {
1337 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
1343 /** specify the ciphers to be used by the SSL */
1344 int SSL_set_cipher_list(SSL
*s
, const char *str
)
1346 STACK_OF(SSL_CIPHER
) *sk
;
1348 sk
= ssl_create_cipher_list(s
->ctx
->method
, &s
->cipher_list
,
1349 &s
->cipher_list_by_id
, str
, s
->cert
);
1350 /* see comment in SSL_CTX_set_cipher_list */
1353 else if (sk_SSL_CIPHER_num(sk
) == 0) {
1354 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
1360 /* works well for SSLv2, not so good for SSLv3 */
1361 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int len
)
1364 STACK_OF(SSL_CIPHER
) *sk
;
1368 if ((s
->session
== NULL
) || (s
->session
->ciphers
== NULL
) || (len
< 2))
1372 sk
= s
->session
->ciphers
;
1374 if (sk_SSL_CIPHER_num(sk
) == 0)
1377 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); i
++) {
1380 c
= sk_SSL_CIPHER_value(sk
, i
);
1381 n
= strlen(c
->name
);
1397 #ifndef OPENSSL_NO_TLSEXT
1398 /** return a servername extension value if provided in Client Hello, or NULL.
1399 * So far, only host_name types are defined (RFC 3546).
1402 const char *SSL_get_servername(const SSL
*s
, const int type
)
1404 if (type
!= TLSEXT_NAMETYPE_host_name
)
1407 return s
->session
&& !s
->tlsext_hostname
?
1408 s
->session
->tlsext_hostname
: s
->tlsext_hostname
;
1411 int SSL_get_servername_type(const SSL
*s
)
1414 && (!s
->tlsext_hostname
? s
->session
->
1415 tlsext_hostname
: s
->tlsext_hostname
))
1416 return TLSEXT_NAMETYPE_host_name
;
1421 * SSL_select_next_proto implements the standard protocol selection. It is
1422 * expected that this function is called from the callback set by
1423 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
1424 * vector of 8-bit, length prefixed byte strings. The length byte itself is
1425 * not included in the length. A byte string of length 0 is invalid. No byte
1426 * string may be truncated. The current, but experimental algorithm for
1427 * selecting the protocol is: 1) If the server doesn't support NPN then this
1428 * is indicated to the callback. In this case, the client application has to
1429 * abort the connection or have a default application level protocol. 2) If
1430 * the server supports NPN, but advertises an empty list then the client
1431 * selects the first protcol in its list, but indicates via the API that this
1432 * fallback case was enacted. 3) Otherwise, the client finds the first
1433 * protocol in the server's list that it supports and selects this protocol.
1434 * This is because it's assumed that the server has better information about
1435 * which protocol a client should use. 4) If the client doesn't support any
1436 * of the server's advertised protocols, then this is treated the same as
1437 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
1438 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1440 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
1441 const unsigned char *server
,
1442 unsigned int server_len
,
1443 const unsigned char *client
,
1444 unsigned int client_len
)
1447 const unsigned char *result
;
1448 int status
= OPENSSL_NPN_UNSUPPORTED
;
1451 * For each protocol in server preference order, see if we support it.
1453 for (i
= 0; i
< server_len
;) {
1454 for (j
= 0; j
< client_len
;) {
1455 if (server
[i
] == client
[j
] &&
1456 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
1457 /* We found a match */
1458 result
= &server
[i
];
1459 status
= OPENSSL_NPN_NEGOTIATED
;
1469 /* There's no overlap between our protocols and the server's list. */
1471 status
= OPENSSL_NPN_NO_OVERLAP
;
1474 *out
= (unsigned char *)result
+ 1;
1475 *outlen
= result
[0];
1479 # ifndef OPENSSL_NO_NEXTPROTONEG
1481 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
1482 * client's requested protocol for this connection and returns 0. If the
1483 * client didn't request any protocol, then *data is set to NULL. Note that
1484 * the client can request any protocol it chooses. The value returned from
1485 * this function need not be a member of the list of supported protocols
1486 * provided by the callback.
1488 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
1491 *data
= s
->next_proto_negotiated
;
1495 *len
= s
->next_proto_negotiated_len
;
1500 * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when
1501 * a TLS server needs a list of supported protocols for Next Protocol
1502 * Negotiation. The returned list must be in wire format. The list is
1503 * returned by setting |out| to point to it and |outlen| to its length. This
1504 * memory will not be modified, but one should assume that the SSL* keeps a
1505 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
1506 * wishes to advertise. Otherwise, no such extension will be included in the
1509 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX
*ctx
,
1510 int (*cb
) (SSL
*ssl
,
1513 unsigned int *outlen
,
1514 void *arg
), void *arg
)
1516 ctx
->next_protos_advertised_cb
= cb
;
1517 ctx
->next_protos_advertised_cb_arg
= arg
;
1521 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1522 * client needs to select a protocol from the server's provided list. |out|
1523 * must be set to point to the selected protocol (which may be within |in|).
1524 * The length of the protocol name must be written into |outlen|. The
1525 * server's advertised protocols are provided in |in| and |inlen|. The
1526 * callback can assume that |in| is syntactically valid. The client must
1527 * select a protocol. It is fatal to the connection if this callback returns
1528 * a value other than SSL_TLSEXT_ERR_OK.
1530 void SSL_CTX_set_next_proto_select_cb(SSL_CTX
*ctx
,
1531 int (*cb
) (SSL
*s
, unsigned char **out
,
1532 unsigned char *outlen
,
1533 const unsigned char *in
,
1535 void *arg
), void *arg
)
1537 ctx
->next_proto_select_cb
= cb
;
1538 ctx
->next_proto_select_cb_arg
= arg
;
1543 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
1544 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1545 * length-prefixed strings). Returns 0 on success.
1547 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
1548 unsigned protos_len
)
1550 OPENSSL_free(ctx
->alpn_client_proto_list
);
1551 ctx
->alpn_client_proto_list
= OPENSSL_malloc(protos_len
);
1552 if (!ctx
->alpn_client_proto_list
)
1554 memcpy(ctx
->alpn_client_proto_list
, protos
, protos_len
);
1555 ctx
->alpn_client_proto_list_len
= protos_len
;
1561 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
1562 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1563 * length-prefixed strings). Returns 0 on success.
1565 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
1566 unsigned protos_len
)
1568 OPENSSL_free(ssl
->alpn_client_proto_list
);
1569 ssl
->alpn_client_proto_list
= OPENSSL_malloc(protos_len
);
1570 if (!ssl
->alpn_client_proto_list
)
1572 memcpy(ssl
->alpn_client_proto_list
, protos
, protos_len
);
1573 ssl
->alpn_client_proto_list_len
= protos_len
;
1579 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
1580 * called during ClientHello processing in order to select an ALPN protocol
1581 * from the client's list of offered protocols.
1583 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
1584 int (*cb
) (SSL
*ssl
,
1585 const unsigned char **out
,
1586 unsigned char *outlen
,
1587 const unsigned char *in
,
1589 void *arg
), void *arg
)
1591 ctx
->alpn_select_cb
= cb
;
1592 ctx
->alpn_select_cb_arg
= arg
;
1596 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from
1597 * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name
1598 * (not including the leading length-prefix byte). If the server didn't
1599 * respond with a negotiated protocol then |*len| will be zero.
1601 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
1606 *data
= ssl
->s3
->alpn_selected
;
1610 *len
= ssl
->s3
->alpn_selected_len
;
1613 #endif /* !OPENSSL_NO_TLSEXT */
1615 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
1616 const char *label
, size_t llen
,
1617 const unsigned char *p
, size_t plen
,
1620 if (s
->version
< TLS1_VERSION
)
1623 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
1628 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
1633 ((unsigned int)a
->session_id
[0]) |
1634 ((unsigned int)a
->session_id
[1] << 8L) |
1635 ((unsigned long)a
->session_id
[2] << 16L) |
1636 ((unsigned long)a
->session_id
[3] << 24L);
1641 * NB: If this function (or indeed the hash function which uses a sort of
1642 * coarser function than this one) is changed, ensure
1643 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
1644 * being able to construct an SSL_SESSION that will collide with any existing
1645 * session with a matching session ID.
1647 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
1649 if (a
->ssl_version
!= b
->ssl_version
)
1651 if (a
->session_id_length
!= b
->session_id_length
)
1653 return (memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
));
1657 * These wrapper functions should remain rather than redeclaring
1658 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1659 * variable. The reason is that the functions aren't static, they're exposed
1662 static IMPLEMENT_LHASH_HASH_FN(ssl_session
, SSL_SESSION
)
1663 static IMPLEMENT_LHASH_COMP_FN(ssl_session
, SSL_SESSION
)
1665 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
1667 SSL_CTX
*ret
= NULL
;
1670 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_NULL_SSL_METHOD_PASSED
);
1674 if (FIPS_mode() && (meth
->version
< TLS1_VERSION
)) {
1675 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE
);
1679 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
1680 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
1683 ret
= OPENSSL_malloc(sizeof(*ret
));
1687 memset(ret
, 0, sizeof(*ret
));
1691 ret
->cert_store
= NULL
;
1692 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
1693 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
1694 ret
->session_cache_head
= NULL
;
1695 ret
->session_cache_tail
= NULL
;
1697 /* We take the system default */
1698 ret
->session_timeout
= meth
->get_timeout();
1700 ret
->new_session_cb
= 0;
1701 ret
->remove_session_cb
= 0;
1702 ret
->get_session_cb
= 0;
1703 ret
->generate_session_id
= 0;
1705 memset(&ret
->stats
, 0, sizeof(ret
->stats
));
1707 ret
->references
= 1;
1708 ret
->quiet_shutdown
= 0;
1709 ret
->info_callback
= NULL
;
1710 ret
->app_verify_callback
= 0;
1711 ret
->app_verify_arg
= NULL
;
1712 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
1713 ret
->read_ahead
= 0;
1714 ret
->msg_callback
= 0;
1715 ret
->msg_callback_arg
= NULL
;
1716 ret
->verify_mode
= SSL_VERIFY_NONE
;
1717 ret
->sid_ctx_length
= 0;
1718 ret
->default_verify_callback
= NULL
;
1719 if ((ret
->cert
= ssl_cert_new()) == NULL
)
1722 ret
->default_passwd_callback
= 0;
1723 ret
->default_passwd_callback_userdata
= NULL
;
1724 ret
->client_cert_cb
= 0;
1725 ret
->app_gen_cookie_cb
= 0;
1726 ret
->app_verify_cookie_cb
= 0;
1728 ret
->sessions
= lh_SSL_SESSION_new();
1729 if (ret
->sessions
== NULL
)
1731 ret
->cert_store
= X509_STORE_new();
1732 if (ret
->cert_store
== NULL
)
1735 if (!ssl_create_cipher_list(ret
->method
,
1736 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
1737 SSL_DEFAULT_CIPHER_LIST
, ret
->cert
)
1738 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
1739 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
1743 ret
->param
= X509_VERIFY_PARAM_new();
1747 if ((ret
->md5
= EVP_get_digestbyname("ssl3-md5")) == NULL
) {
1748 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
1751 if ((ret
->sha1
= EVP_get_digestbyname("ssl3-sha1")) == NULL
) {
1752 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
1756 if ((ret
->client_CA
= sk_X509_NAME_new_null()) == NULL
)
1759 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
);
1761 ret
->extra_certs
= NULL
;
1762 /* No compression for DTLS */
1763 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
1764 ret
->comp_methods
= SSL_COMP_get_compression_methods();
1766 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
1768 #ifndef OPENSSL_NO_TLSEXT
1769 ret
->tlsext_servername_callback
= 0;
1770 ret
->tlsext_servername_arg
= NULL
;
1771 /* Setup RFC4507 ticket keys */
1772 if ((RAND_bytes(ret
->tlsext_tick_key_name
, 16) <= 0)
1773 || (RAND_bytes(ret
->tlsext_tick_hmac_key
, 16) <= 0)
1774 || (RAND_bytes(ret
->tlsext_tick_aes_key
, 16) <= 0))
1775 ret
->options
|= SSL_OP_NO_TICKET
;
1777 ret
->tlsext_status_cb
= 0;
1778 ret
->tlsext_status_arg
= NULL
;
1780 # ifndef OPENSSL_NO_NEXTPROTONEG
1781 ret
->next_protos_advertised_cb
= 0;
1782 ret
->next_proto_select_cb
= 0;
1785 #ifndef OPENSSL_NO_PSK
1786 ret
->psk_identity_hint
= NULL
;
1787 ret
->psk_client_callback
= NULL
;
1788 ret
->psk_server_callback
= NULL
;
1790 #ifndef OPENSSL_NO_SRP
1791 if (!SSL_CTX_SRP_CTX_init(ret
))
1794 #ifndef OPENSSL_NO_ENGINE
1795 ret
->client_cert_engine
= NULL
;
1796 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1797 # define eng_strx(x) #x
1798 # define eng_str(x) eng_strx(x)
1799 /* Use specific client engine automatically... ignore errors */
1802 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
1805 ENGINE_load_builtin_engines();
1806 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
1808 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
1814 * Default is to connect to non-RI servers. When RI is more widely
1815 * deployed might change this.
1817 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
1821 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
1827 void SSL_CTX_free(SSL_CTX
*a
)
1834 i
= CRYPTO_add(&a
->references
, -1, CRYPTO_LOCK_SSL_CTX
);
1836 REF_PRINT("SSL_CTX", a
);
1842 fprintf(stderr
, "SSL_CTX_free, bad reference count\n");
1847 X509_VERIFY_PARAM_free(a
->param
);
1850 * Free internal session cache. However: the remove_cb() may reference
1851 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1852 * after the sessions were flushed.
1853 * As the ex_data handling routines might also touch the session cache,
1854 * the most secure solution seems to be: empty (flush) the cache, then
1855 * free ex_data, then finally free the cache.
1856 * (See ticket [openssl.org #212].)
1858 if (a
->sessions
!= NULL
)
1859 SSL_CTX_flush_sessions(a
, 0);
1861 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
1862 lh_SSL_SESSION_free(a
->sessions
);
1863 X509_STORE_free(a
->cert_store
);
1864 sk_SSL_CIPHER_free(a
->cipher_list
);
1865 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
1866 ssl_cert_free(a
->cert
);
1867 sk_X509_NAME_pop_free(a
->client_CA
, X509_NAME_free
);
1868 sk_X509_pop_free(a
->extra_certs
, X509_free
);
1869 a
->comp_methods
= NULL
;
1870 #ifndef OPENSSL_NO_SRTP
1871 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
1873 #ifndef OPENSSL_NO_PSK
1874 OPENSSL_free(a
->psk_identity_hint
);
1876 #ifndef OPENSSL_NO_SRP
1877 SSL_CTX_SRP_CTX_free(a
);
1879 #ifndef OPENSSL_NO_ENGINE
1880 if (a
->client_cert_engine
)
1881 ENGINE_finish(a
->client_cert_engine
);
1884 #ifndef OPENSSL_NO_TLSEXT
1885 # ifndef OPENSSL_NO_EC
1886 OPENSSL_free(a
->tlsext_ecpointformatlist
);
1887 OPENSSL_free(a
->tlsext_ellipticcurvelist
);
1889 OPENSSL_free(a
->alpn_client_proto_list
);
1895 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
1897 ctx
->default_passwd_callback
= cb
;
1900 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
1902 ctx
->default_passwd_callback_userdata
= u
;
1905 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
1906 int (*cb
) (X509_STORE_CTX
*, void *),
1909 ctx
->app_verify_callback
= cb
;
1910 ctx
->app_verify_arg
= arg
;
1913 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
1914 int (*cb
) (int, X509_STORE_CTX
*))
1916 ctx
->verify_mode
= mode
;
1917 ctx
->default_verify_callback
= cb
;
1920 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
1922 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
1925 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
),
1928 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
1931 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
1933 ssl_cert_set_cert_cb(s
->cert
, cb
, arg
);
1936 void ssl_set_cert_masks(CERT
*c
, const SSL_CIPHER
*cipher
)
1939 int rsa_enc
, rsa_tmp
, rsa_sign
, dh_tmp
, dh_rsa
, dh_dsa
, dsa_sign
;
1940 int rsa_enc_export
, dh_rsa_export
, dh_dsa_export
;
1941 int rsa_tmp_export
, dh_tmp_export
, kl
;
1942 unsigned long mask_k
, mask_a
, emask_k
, emask_a
;
1943 #ifndef OPENSSL_NO_EC
1944 int have_ecc_cert
, ecdsa_ok
, ecc_pkey_size
;
1945 int have_ecdh_tmp
, ecdh_ok
;
1947 EVP_PKEY
*ecc_pkey
= NULL
;
1948 int signature_nid
= 0, pk_nid
= 0, md_nid
= 0;
1953 kl
= SSL_C_EXPORT_PKEYLENGTH(cipher
);
1955 #ifndef OPENSSL_NO_RSA
1956 rsa_tmp
= (c
->rsa_tmp
!= NULL
|| c
->rsa_tmp_cb
!= NULL
);
1957 rsa_tmp_export
= (c
->rsa_tmp_cb
!= NULL
||
1958 (rsa_tmp
&& RSA_size(c
->rsa_tmp
) * 8 <= kl
));
1960 rsa_tmp
= rsa_tmp_export
= 0;
1962 #ifndef OPENSSL_NO_DH
1963 dh_tmp
= (c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
|| c
->dh_tmp_auto
);
1964 dh_tmp_export
= !c
->dh_tmp_auto
&& (c
->dh_tmp_cb
!= NULL
||
1966 && DH_size(c
->dh_tmp
) * 8 <= kl
));
1968 dh_tmp
= dh_tmp_export
= 0;
1971 #ifndef OPENSSL_NO_EC
1972 have_ecdh_tmp
= (c
->ecdh_tmp
|| c
->ecdh_tmp_cb
|| c
->ecdh_tmp_auto
);
1974 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_ENC
]);
1975 rsa_enc
= cpk
->valid_flags
& CERT_PKEY_VALID
;
1976 rsa_enc_export
= (rsa_enc
&& EVP_PKEY_size(cpk
->privatekey
) * 8 <= kl
);
1977 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_SIGN
]);
1978 rsa_sign
= cpk
->valid_flags
& CERT_PKEY_SIGN
;
1979 cpk
= &(c
->pkeys
[SSL_PKEY_DSA_SIGN
]);
1980 dsa_sign
= cpk
->valid_flags
& CERT_PKEY_SIGN
;
1981 cpk
= &(c
->pkeys
[SSL_PKEY_DH_RSA
]);
1982 dh_rsa
= cpk
->valid_flags
& CERT_PKEY_VALID
;
1983 dh_rsa_export
= (dh_rsa
&& EVP_PKEY_size(cpk
->privatekey
) * 8 <= kl
);
1984 cpk
= &(c
->pkeys
[SSL_PKEY_DH_DSA
]);
1985 /* FIX THIS EAY EAY EAY */
1986 dh_dsa
= cpk
->valid_flags
& CERT_PKEY_VALID
;
1987 dh_dsa_export
= (dh_dsa
&& EVP_PKEY_size(cpk
->privatekey
) * 8 <= kl
);
1988 cpk
= &(c
->pkeys
[SSL_PKEY_ECC
]);
1989 #ifndef OPENSSL_NO_EC
1990 have_ecc_cert
= cpk
->valid_flags
& CERT_PKEY_VALID
;
1999 "rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2000 rsa_tmp
, rsa_tmp_export
, dh_tmp
, have_ecdh_tmp
, rsa_enc
,
2001 rsa_enc_export
, rsa_sign
, dsa_sign
, dh_rsa
, dh_dsa
);
2004 cpk
= &(c
->pkeys
[SSL_PKEY_GOST01
]);
2005 if (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
) {
2006 mask_k
|= SSL_kGOST
;
2007 mask_a
|= SSL_aGOST01
;
2009 cpk
= &(c
->pkeys
[SSL_PKEY_GOST94
]);
2010 if (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
) {
2011 mask_k
|= SSL_kGOST
;
2012 mask_a
|= SSL_aGOST94
;
2015 if (rsa_enc
|| (rsa_tmp
&& rsa_sign
))
2017 if (rsa_enc_export
|| (rsa_tmp_export
&& (rsa_sign
|| rsa_enc
)))
2018 emask_k
|= SSL_kRSA
;
2021 emask_k
|= SSL_kDHE
;
2029 emask_k
|= SSL_kDHr
;
2034 emask_k
|= SSL_kDHd
;
2036 if (emask_k
& (SSL_kDHr
| SSL_kDHd
))
2039 if (rsa_enc
|| rsa_sign
) {
2041 emask_a
|= SSL_aRSA
;
2046 emask_a
|= SSL_aDSS
;
2049 mask_a
|= SSL_aNULL
;
2050 emask_a
|= SSL_aNULL
;
2053 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
2054 * depending on the key usage extension.
2056 #ifndef OPENSSL_NO_EC
2057 if (have_ecc_cert
) {
2058 cpk
= &c
->pkeys
[SSL_PKEY_ECC
];
2060 /* This call populates extension flags (ex_flags) */
2061 X509_check_purpose(x
, -1, 0);
2062 ecdh_ok
= (x
->ex_flags
& EXFLAG_KUSAGE
) ?
2063 (x
->ex_kusage
& X509v3_KU_KEY_AGREEMENT
) : 1;
2064 ecdsa_ok
= (x
->ex_flags
& EXFLAG_KUSAGE
) ?
2065 (x
->ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
) : 1;
2066 if (!(cpk
->valid_flags
& CERT_PKEY_SIGN
))
2068 ecc_pkey
= X509_get_pubkey(x
);
2069 ecc_pkey_size
= (ecc_pkey
!= NULL
) ? EVP_PKEY_bits(ecc_pkey
) : 0;
2070 EVP_PKEY_free(ecc_pkey
);
2071 if ((x
->sig_alg
) && (x
->sig_alg
->algorithm
)) {
2072 signature_nid
= OBJ_obj2nid(x
->sig_alg
->algorithm
);
2073 OBJ_find_sigid_algs(signature_nid
, &md_nid
, &pk_nid
);
2077 if (pk_nid
== NID_rsaEncryption
|| pk_nid
== NID_rsa
) {
2078 mask_k
|= SSL_kECDHr
;
2079 mask_a
|= SSL_aECDH
;
2080 if (ecc_pkey_size
<= 163) {
2081 emask_k
|= SSL_kECDHr
;
2082 emask_a
|= SSL_aECDH
;
2086 if (pk_nid
== NID_X9_62_id_ecPublicKey
) {
2087 mask_k
|= SSL_kECDHe
;
2088 mask_a
|= SSL_aECDH
;
2089 if (ecc_pkey_size
<= 163) {
2090 emask_k
|= SSL_kECDHe
;
2091 emask_a
|= SSL_aECDH
;
2096 mask_a
|= SSL_aECDSA
;
2097 emask_a
|= SSL_aECDSA
;
2102 #ifndef OPENSSL_NO_EC
2103 if (have_ecdh_tmp
) {
2104 mask_k
|= SSL_kECDHE
;
2105 emask_k
|= SSL_kECDHE
;
2109 #ifndef OPENSSL_NO_PSK
2112 emask_k
|= SSL_kPSK
;
2113 emask_a
|= SSL_aPSK
;
2118 c
->export_mask_k
= emask_k
;
2119 c
->export_mask_a
= emask_a
;
2123 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2124 #define ku_reject(x, usage) \
2125 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2127 #ifndef OPENSSL_NO_EC
2129 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
2131 unsigned long alg_k
, alg_a
;
2132 EVP_PKEY
*pkey
= NULL
;
2134 int signature_nid
= 0, md_nid
= 0, pk_nid
= 0;
2135 const SSL_CIPHER
*cs
= s
->s3
->tmp
.new_cipher
;
2137 alg_k
= cs
->algorithm_mkey
;
2138 alg_a
= cs
->algorithm_auth
;
2140 if (SSL_C_IS_EXPORT(cs
)) {
2141 /* ECDH key length in export ciphers must be <= 163 bits */
2142 pkey
= X509_get_pubkey(x
);
2145 keysize
= EVP_PKEY_bits(pkey
);
2146 EVP_PKEY_free(pkey
);
2151 /* This call populates the ex_flags field correctly */
2152 X509_check_purpose(x
, -1, 0);
2153 if ((x
->sig_alg
) && (x
->sig_alg
->algorithm
)) {
2154 signature_nid
= OBJ_obj2nid(x
->sig_alg
->algorithm
);
2155 OBJ_find_sigid_algs(signature_nid
, &md_nid
, &pk_nid
);
2157 if (alg_k
& SSL_kECDHe
|| alg_k
& SSL_kECDHr
) {
2158 /* key usage, if present, must allow key agreement */
2159 if (ku_reject(x
, X509v3_KU_KEY_AGREEMENT
)) {
2160 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2161 SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT
);
2164 if ((alg_k
& SSL_kECDHe
) && TLS1_get_version(s
) < TLS1_2_VERSION
) {
2165 /* signature alg must be ECDSA */
2166 if (pk_nid
!= NID_X9_62_id_ecPublicKey
) {
2167 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2168 SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE
);
2172 if ((alg_k
& SSL_kECDHr
) && TLS1_get_version(s
) < TLS1_2_VERSION
) {
2173 /* signature alg must be RSA */
2175 if (pk_nid
!= NID_rsaEncryption
&& pk_nid
!= NID_rsa
) {
2176 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2177 SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE
);
2182 if (alg_a
& SSL_aECDSA
) {
2183 /* key usage, if present, must allow signing */
2184 if (ku_reject(x
, X509v3_KU_DIGITAL_SIGNATURE
)) {
2185 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2186 SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
2191 return 1; /* all checks are ok */
2196 static int ssl_get_server_cert_index(const SSL
*s
)
2199 idx
= ssl_cipher_get_cert_index(s
->s3
->tmp
.new_cipher
);
2200 if (idx
== SSL_PKEY_RSA_ENC
&& !s
->cert
->pkeys
[SSL_PKEY_RSA_ENC
].x509
)
2201 idx
= SSL_PKEY_RSA_SIGN
;
2203 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX
, ERR_R_INTERNAL_ERROR
);
2207 CERT_PKEY
*ssl_get_server_send_pkey(const SSL
*s
)
2213 if (!s
->s3
|| !s
->s3
->tmp
.new_cipher
)
2215 ssl_set_cert_masks(c
, s
->s3
->tmp
.new_cipher
);
2217 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2219 * Broken protocol test: return last used certificate: which may mismatch
2222 if (c
->cert_flags
& SSL_CERT_FLAG_BROKEN_PROTOCOL
)
2226 i
= ssl_get_server_cert_index(s
);
2228 /* This may or may not be an error. */
2233 return &c
->pkeys
[i
];
2236 EVP_PKEY
*ssl_get_sign_pkey(SSL
*s
, const SSL_CIPHER
*cipher
,
2239 unsigned long alg_a
;
2243 alg_a
= cipher
->algorithm_auth
;
2246 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2248 * Broken protocol test: use last key: which may mismatch the one
2251 if (c
->cert_flags
& SSL_CERT_FLAG_BROKEN_PROTOCOL
)
2252 idx
= c
->key
- c
->pkeys
;
2256 if ((alg_a
& SSL_aDSS
) &&
2257 (c
->pkeys
[SSL_PKEY_DSA_SIGN
].privatekey
!= NULL
))
2258 idx
= SSL_PKEY_DSA_SIGN
;
2259 else if (alg_a
& SSL_aRSA
) {
2260 if (c
->pkeys
[SSL_PKEY_RSA_SIGN
].privatekey
!= NULL
)
2261 idx
= SSL_PKEY_RSA_SIGN
;
2262 else if (c
->pkeys
[SSL_PKEY_RSA_ENC
].privatekey
!= NULL
)
2263 idx
= SSL_PKEY_RSA_ENC
;
2264 } else if ((alg_a
& SSL_aECDSA
) &&
2265 (c
->pkeys
[SSL_PKEY_ECC
].privatekey
!= NULL
))
2268 SSLerr(SSL_F_SSL_GET_SIGN_PKEY
, ERR_R_INTERNAL_ERROR
);
2272 *pmd
= c
->pkeys
[idx
].digest
;
2273 return c
->pkeys
[idx
].privatekey
;
2276 #ifndef OPENSSL_NO_TLSEXT
2277 int ssl_get_server_cert_serverinfo(SSL
*s
, const unsigned char **serverinfo
,
2278 size_t *serverinfo_length
)
2282 *serverinfo_length
= 0;
2285 i
= ssl_get_server_cert_index(s
);
2289 if (c
->pkeys
[i
].serverinfo
== NULL
)
2292 *serverinfo
= c
->pkeys
[i
].serverinfo
;
2293 *serverinfo_length
= c
->pkeys
[i
].serverinfo_length
;
2298 void ssl_update_cache(SSL
*s
, int mode
)
2303 * If the session_id_length is 0, we are not supposed to cache it, and it
2304 * would be rather hard to do anyway :-)
2306 if (s
->session
->session_id_length
== 0)
2309 i
= s
->session_ctx
->session_cache_mode
;
2310 if ((i
& mode
) && (!s
->hit
)
2311 && ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
)
2312 || SSL_CTX_add_session(s
->session_ctx
, s
->session
))
2313 && (s
->session_ctx
->new_session_cb
!= NULL
)) {
2314 CRYPTO_add(&s
->session
->references
, 1, CRYPTO_LOCK_SSL_SESSION
);
2315 if (!s
->session_ctx
->new_session_cb(s
, s
->session
))
2316 SSL_SESSION_free(s
->session
);
2319 /* auto flush every 255 connections */
2320 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
2321 if ((((mode
& SSL_SESS_CACHE_CLIENT
)
2322 ? s
->session_ctx
->stats
.sess_connect_good
2323 : s
->session_ctx
->stats
.sess_accept_good
) & 0xff) == 0xff) {
2324 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
2329 const SSL_METHOD
*SSL_CTX_get_ssl_method(SSL_CTX
*ctx
)
2334 const SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
2339 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
2344 if (s
->method
!= meth
) {
2345 if (s
->handshake_func
!= NULL
)
2346 conn
= (s
->handshake_func
== s
->method
->ssl_connect
);
2348 if (s
->method
->version
== meth
->version
)
2351 s
->method
->ssl_free(s
);
2353 ret
= s
->method
->ssl_new(s
);
2357 s
->handshake_func
= meth
->ssl_connect
;
2359 s
->handshake_func
= meth
->ssl_accept
;
2364 int SSL_get_error(const SSL
*s
, int i
)
2371 return (SSL_ERROR_NONE
);
2374 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
2375 * where we do encode the error
2377 if ((l
= ERR_peek_error()) != 0) {
2378 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
2379 return (SSL_ERROR_SYSCALL
);
2381 return (SSL_ERROR_SSL
);
2384 if ((i
< 0) && SSL_want_read(s
)) {
2385 bio
= SSL_get_rbio(s
);
2386 if (BIO_should_read(bio
))
2387 return (SSL_ERROR_WANT_READ
);
2388 else if (BIO_should_write(bio
))
2390 * This one doesn't make too much sense ... We never try to write
2391 * to the rbio, and an application program where rbio and wbio
2392 * are separate couldn't even know what it should wait for.
2393 * However if we ever set s->rwstate incorrectly (so that we have
2394 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
2395 * wbio *are* the same, this test works around that bug; so it
2396 * might be safer to keep it.
2398 return (SSL_ERROR_WANT_WRITE
);
2399 else if (BIO_should_io_special(bio
)) {
2400 reason
= BIO_get_retry_reason(bio
);
2401 if (reason
== BIO_RR_CONNECT
)
2402 return (SSL_ERROR_WANT_CONNECT
);
2403 else if (reason
== BIO_RR_ACCEPT
)
2404 return (SSL_ERROR_WANT_ACCEPT
);
2406 return (SSL_ERROR_SYSCALL
); /* unknown */
2410 if ((i
< 0) && SSL_want_write(s
)) {
2411 bio
= SSL_get_wbio(s
);
2412 if (BIO_should_write(bio
))
2413 return (SSL_ERROR_WANT_WRITE
);
2414 else if (BIO_should_read(bio
))
2416 * See above (SSL_want_read(s) with BIO_should_write(bio))
2418 return (SSL_ERROR_WANT_READ
);
2419 else if (BIO_should_io_special(bio
)) {
2420 reason
= BIO_get_retry_reason(bio
);
2421 if (reason
== BIO_RR_CONNECT
)
2422 return (SSL_ERROR_WANT_CONNECT
);
2423 else if (reason
== BIO_RR_ACCEPT
)
2424 return (SSL_ERROR_WANT_ACCEPT
);
2426 return (SSL_ERROR_SYSCALL
);
2429 if ((i
< 0) && SSL_want_x509_lookup(s
)) {
2430 return (SSL_ERROR_WANT_X509_LOOKUP
);
2434 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
2435 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
2436 return (SSL_ERROR_ZERO_RETURN
);
2438 return (SSL_ERROR_SYSCALL
);
2441 int SSL_do_handshake(SSL
*s
)
2445 if (s
->handshake_func
== NULL
) {
2446 SSLerr(SSL_F_SSL_DO_HANDSHAKE
, SSL_R_CONNECTION_TYPE_NOT_SET
);
2450 s
->method
->ssl_renegotiate_check(s
);
2452 if (SSL_in_init(s
) || SSL_in_before(s
)) {
2453 ret
= s
->handshake_func(s
);
2459 * For the next 2 functions, SSL_clear() sets shutdown and so one of these
2460 * calls will reset it
2462 void SSL_set_accept_state(SSL
*s
)
2466 s
->state
= SSL_ST_ACCEPT
| SSL_ST_BEFORE
;
2467 s
->handshake_func
= s
->method
->ssl_accept
;
2468 /* clear the current cipher */
2469 ssl_clear_cipher_ctx(s
);
2470 ssl_clear_hash_ctx(&s
->read_hash
);
2471 ssl_clear_hash_ctx(&s
->write_hash
);
2474 void SSL_set_connect_state(SSL
*s
)
2478 s
->state
= SSL_ST_CONNECT
| SSL_ST_BEFORE
;
2479 s
->handshake_func
= s
->method
->ssl_connect
;
2480 /* clear the current cipher */
2481 ssl_clear_cipher_ctx(s
);
2482 ssl_clear_hash_ctx(&s
->read_hash
);
2483 ssl_clear_hash_ctx(&s
->write_hash
);
2486 int ssl_undefined_function(SSL
*s
)
2488 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2492 int ssl_undefined_void_function(void)
2494 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,
2495 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2499 int ssl_undefined_const_function(const SSL
*s
)
2501 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION
,
2502 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2506 SSL_METHOD
*ssl_bad_method(int ver
)
2508 SSLerr(SSL_F_SSL_BAD_METHOD
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2512 const char *SSL_get_version(const SSL
*s
)
2514 if (s
->version
== TLS1_2_VERSION
)
2516 else if (s
->version
== TLS1_1_VERSION
)
2518 else if (s
->version
== TLS1_VERSION
)
2520 else if (s
->version
== SSL3_VERSION
)
2522 else if (s
->version
== DTLS1_BAD_VER
)
2523 return ("DTLSv0.9");
2524 else if (s
->version
== DTLS1_VERSION
)
2526 else if (s
->version
== DTLS1_2_VERSION
)
2527 return ("DTLSv1.2");
2532 SSL
*SSL_dup(SSL
*s
)
2534 STACK_OF(X509_NAME
) *sk
;
2539 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
2542 ret
->version
= s
->version
;
2543 ret
->type
= s
->type
;
2544 ret
->method
= s
->method
;
2546 if (s
->session
!= NULL
) {
2547 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2548 if (!SSL_copy_session_id(ret
, s
))
2552 * No session has been established yet, so we have to expect that
2553 * s->cert or ret->cert will be changed later -- they should not both
2554 * point to the same object, and thus we can't use
2555 * SSL_copy_session_id.
2558 ret
->method
->ssl_free(ret
);
2559 ret
->method
= s
->method
;
2560 ret
->method
->ssl_new(ret
);
2562 if (s
->cert
!= NULL
) {
2563 ssl_cert_free(ret
->cert
);
2564 ret
->cert
= ssl_cert_dup(s
->cert
);
2565 if (ret
->cert
== NULL
)
2569 if (!SSL_set_session_id_context(ret
, s
->sid_ctx
, s
->sid_ctx_length
))
2573 ret
->options
= s
->options
;
2574 ret
->mode
= s
->mode
;
2575 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
2576 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
2577 ret
->msg_callback
= s
->msg_callback
;
2578 ret
->msg_callback_arg
= s
->msg_callback_arg
;
2579 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
2580 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
2581 ret
->generate_session_id
= s
->generate_session_id
;
2583 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
2585 ret
->debug
= s
->debug
;
2587 /* copy app data, a little dangerous perhaps */
2588 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
2591 /* setup rbio, and wbio */
2592 if (s
->rbio
!= NULL
) {
2593 if (!BIO_dup_state(s
->rbio
, (char *)&ret
->rbio
))
2596 if (s
->wbio
!= NULL
) {
2597 if (s
->wbio
!= s
->rbio
) {
2598 if (!BIO_dup_state(s
->wbio
, (char *)&ret
->wbio
))
2601 ret
->wbio
= ret
->rbio
;
2603 ret
->rwstate
= s
->rwstate
;
2604 ret
->in_handshake
= s
->in_handshake
;
2605 ret
->handshake_func
= s
->handshake_func
;
2606 ret
->server
= s
->server
;
2607 ret
->renegotiate
= s
->renegotiate
;
2608 ret
->new_session
= s
->new_session
;
2609 ret
->quiet_shutdown
= s
->quiet_shutdown
;
2610 ret
->shutdown
= s
->shutdown
;
2611 ret
->state
= s
->state
; /* SSL_dup does not really work at any state,
2613 RECORD_LAYER_dup(&ret
->rlayer
, &s
->rlayer
);
2614 ret
->init_num
= 0; /* would have to copy ret->init_buf,
2615 * ret->init_msg, ret->init_num,
2619 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
2621 /* dup the cipher_list and cipher_list_by_id stacks */
2622 if (s
->cipher_list
!= NULL
) {
2623 if ((ret
->cipher_list
= sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
2626 if (s
->cipher_list_by_id
!= NULL
)
2627 if ((ret
->cipher_list_by_id
= sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
2631 /* Dup the client_CA list */
2632 if (s
->client_CA
!= NULL
) {
2633 if ((sk
= sk_X509_NAME_dup(s
->client_CA
)) == NULL
)
2635 ret
->client_CA
= sk
;
2636 for (i
= 0; i
< sk_X509_NAME_num(sk
); i
++) {
2637 xn
= sk_X509_NAME_value(sk
, i
);
2638 if (sk_X509_NAME_set(sk
, i
, X509_NAME_dup(xn
)) == NULL
) {
2651 void ssl_clear_cipher_ctx(SSL
*s
)
2653 if (s
->enc_read_ctx
!= NULL
) {
2654 EVP_CIPHER_CTX_cleanup(s
->enc_read_ctx
);
2655 OPENSSL_free(s
->enc_read_ctx
);
2656 s
->enc_read_ctx
= NULL
;
2658 if (s
->enc_write_ctx
!= NULL
) {
2659 EVP_CIPHER_CTX_cleanup(s
->enc_write_ctx
);
2660 OPENSSL_free(s
->enc_write_ctx
);
2661 s
->enc_write_ctx
= NULL
;
2663 #ifndef OPENSSL_NO_COMP
2664 COMP_CTX_free(s
->expand
);
2666 COMP_CTX_free(s
->compress
);
2671 X509
*SSL_get_certificate(const SSL
*s
)
2673 if (s
->cert
!= NULL
)
2674 return (s
->cert
->key
->x509
);
2679 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
2681 if (s
->cert
!= NULL
)
2682 return (s
->cert
->key
->privatekey
);
2687 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
2689 if (ctx
->cert
!= NULL
)
2690 return ctx
->cert
->key
->x509
;
2695 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
2697 if (ctx
->cert
!= NULL
)
2698 return ctx
->cert
->key
->privatekey
;
2703 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
2705 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
2706 return (s
->session
->cipher
);
2710 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
2712 #ifndef OPENSSL_NO_COMP
2713 return s
->compress
? COMP_CTX_get_method(s
->compress
) : NULL
;
2719 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
2721 #ifndef OPENSSL_NO_COMP
2722 return s
->expand
? COMP_CTX_get_method(s
->expand
) : NULL
;
2728 int ssl_init_wbio_buffer(SSL
*s
, int push
)
2732 if (s
->bbio
== NULL
) {
2733 bbio
= BIO_new(BIO_f_buffer());
2739 if (s
->bbio
== s
->wbio
)
2740 s
->wbio
= BIO_pop(s
->wbio
);
2742 (void)BIO_reset(bbio
);
2743 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2744 if (!BIO_set_read_buffer_size(bbio
, 1)) {
2745 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
, ERR_R_BUF_LIB
);
2749 if (s
->wbio
!= bbio
)
2750 s
->wbio
= BIO_push(bbio
, s
->wbio
);
2752 if (s
->wbio
== bbio
)
2753 s
->wbio
= BIO_pop(bbio
);
2758 void ssl_free_wbio_buffer(SSL
*s
)
2760 /* callers ensure s is never null */
2761 if (s
->bbio
== NULL
)
2764 if (s
->bbio
== s
->wbio
) {
2765 /* remove buffering */
2766 s
->wbio
= BIO_pop(s
->wbio
);
2767 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids
2768 * adding one more preprocessor symbol */
2769 assert(s
->wbio
!= NULL
);
2776 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
2778 ctx
->quiet_shutdown
= mode
;
2781 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
2783 return (ctx
->quiet_shutdown
);
2786 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
2788 s
->quiet_shutdown
= mode
;
2791 int SSL_get_quiet_shutdown(const SSL
*s
)
2793 return (s
->quiet_shutdown
);
2796 void SSL_set_shutdown(SSL
*s
, int mode
)
2801 int SSL_get_shutdown(const SSL
*s
)
2803 return (s
->shutdown
);
2806 int SSL_version(const SSL
*s
)
2808 return (s
->version
);
2811 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
2816 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
2819 if (ssl
->ctx
== ctx
)
2821 #ifndef OPENSSL_NO_TLSEXT
2823 ctx
= ssl
->initial_ctx
;
2825 new_cert
= ssl_cert_dup(ctx
->cert
);
2826 if (new_cert
== NULL
) {
2829 /* Preserve any already negotiated parameters */
2831 new_cert
->peer_sigalgs
= ssl
->cert
->peer_sigalgs
;
2832 new_cert
->peer_sigalgslen
= ssl
->cert
->peer_sigalgslen
;
2833 ssl
->cert
->peer_sigalgs
= NULL
;
2834 new_cert
->ciphers_raw
= ssl
->cert
->ciphers_raw
;
2835 new_cert
->ciphers_rawlen
= ssl
->cert
->ciphers_rawlen
;
2836 ssl
->cert
->ciphers_raw
= NULL
;
2838 ssl_cert_free(ssl
->cert
);
2839 ssl
->cert
= new_cert
;
2842 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
2843 * so setter APIs must prevent invalid lengths from entering the system.
2845 OPENSSL_assert(ssl
->sid_ctx_length
<= sizeof(ssl
->sid_ctx
));
2848 * If the session ID context matches that of the parent SSL_CTX,
2849 * inherit it from the new SSL_CTX as well. If however the context does
2850 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
2851 * leave it unchanged.
2853 if ((ssl
->ctx
!= NULL
) &&
2854 (ssl
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
2855 (memcmp(ssl
->sid_ctx
, ssl
->ctx
->sid_ctx
, ssl
->sid_ctx_length
) == 0)) {
2856 ssl
->sid_ctx_length
= ctx
->sid_ctx_length
;
2857 memcpy(&ssl
->sid_ctx
, &ctx
->sid_ctx
, sizeof(ssl
->sid_ctx
));
2860 CRYPTO_add(&ctx
->references
, 1, CRYPTO_LOCK_SSL_CTX
);
2861 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
2867 #ifndef OPENSSL_NO_STDIO
2868 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
2870 return (X509_STORE_set_default_paths(ctx
->cert_store
));
2873 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
2876 return (X509_STORE_load_locations(ctx
->cert_store
, CAfile
, CApath
));
2880 void SSL_set_info_callback(SSL
*ssl
,
2881 void (*cb
) (const SSL
*ssl
, int type
, int val
))
2883 ssl
->info_callback
= cb
;
2887 * One compiler (Diab DCC) doesn't like argument names in returned function
2890 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
2893 return ssl
->info_callback
;
2896 int SSL_state(const SSL
*ssl
)
2898 return (ssl
->state
);
2901 void SSL_set_state(SSL
*ssl
, int state
)
2906 void SSL_set_verify_result(SSL
*ssl
, long arg
)
2908 ssl
->verify_result
= arg
;
2911 long SSL_get_verify_result(const SSL
*ssl
)
2913 return (ssl
->verify_result
);
2916 int SSL_get_ex_new_index(long argl
, void *argp
, CRYPTO_EX_new
*new_func
,
2917 CRYPTO_EX_dup
*dup_func
, CRYPTO_EX_free
*free_func
)
2919 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL
, argl
, argp
,
2920 new_func
, dup_func
, free_func
);
2923 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
2925 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
2928 void *SSL_get_ex_data(const SSL
*s
, int idx
)
2930 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
2933 int SSL_CTX_get_ex_new_index(long argl
, void *argp
, CRYPTO_EX_new
*new_func
,
2934 CRYPTO_EX_dup
*dup_func
,
2935 CRYPTO_EX_free
*free_func
)
2937 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX
, argl
, argp
,
2938 new_func
, dup_func
, free_func
);
2941 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
2943 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
2946 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
2948 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
2956 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
2958 return (ctx
->cert_store
);
2961 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
2963 X509_STORE_free(ctx
->cert_store
);
2964 ctx
->cert_store
= store
;
2967 int SSL_want(const SSL
*s
)
2969 return (s
->rwstate
);
2973 * \brief Set the callback for generating temporary RSA keys.
2974 * \param ctx the SSL context.
2975 * \param cb the callback
2978 #ifndef OPENSSL_NO_RSA
2979 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX
*ctx
, RSA
*(*cb
) (SSL
*ssl
,
2983 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_RSA_CB
, (void (*)(void))cb
);
2986 void SSL_set_tmp_rsa_callback(SSL
*ssl
, RSA
*(*cb
) (SSL
*ssl
,
2990 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_RSA_CB
, (void (*)(void))cb
);
2996 * \brief The RSA temporary key callback function.
2997 * \param ssl the SSL session.
2998 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2999 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3000 * of the required key in bits.
3001 * \return the temporary RSA key.
3002 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3005 RSA
*cb(SSL
*ssl
, int is_export
, int keylength
)
3011 * \brief Set the callback for generating temporary DH keys.
3012 * \param ctx the SSL context.
3013 * \param dh the callback
3016 #ifndef OPENSSL_NO_DH
3017 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,
3018 DH
*(*dh
) (SSL
*ssl
, int is_export
,
3021 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
3024 void SSL_set_tmp_dh_callback(SSL
*ssl
, DH
*(*dh
) (SSL
*ssl
, int is_export
,
3027 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
3031 #ifndef OPENSSL_NO_EC
3032 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX
*ctx
,
3033 EC_KEY
*(*ecdh
) (SSL
*ssl
, int is_export
,
3036 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_ECDH_CB
,
3037 (void (*)(void))ecdh
);
3040 void SSL_set_tmp_ecdh_callback(SSL
*ssl
,
3041 EC_KEY
*(*ecdh
) (SSL
*ssl
, int is_export
,
3044 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_ECDH_CB
, (void (*)(void))ecdh
);
3048 #ifndef OPENSSL_NO_PSK
3049 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
3051 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3052 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
,
3053 SSL_R_DATA_LENGTH_TOO_LONG
);
3056 OPENSSL_free(ctx
->psk_identity_hint
);
3057 if (identity_hint
!= NULL
) {
3058 ctx
->psk_identity_hint
= BUF_strdup(identity_hint
);
3059 if (ctx
->psk_identity_hint
== NULL
)
3062 ctx
->psk_identity_hint
= NULL
;
3066 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
3071 if (s
->session
== NULL
)
3072 return 1; /* session not created yet, ignored */
3074 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3075 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
3078 OPENSSL_free(s
->session
->psk_identity_hint
);
3079 if (identity_hint
!= NULL
) {
3080 s
->session
->psk_identity_hint
= BUF_strdup(identity_hint
);
3081 if (s
->session
->psk_identity_hint
== NULL
)
3084 s
->session
->psk_identity_hint
= NULL
;
3088 const char *SSL_get_psk_identity_hint(const SSL
*s
)
3090 if (s
== NULL
|| s
->session
== NULL
)
3092 return (s
->session
->psk_identity_hint
);
3095 const char *SSL_get_psk_identity(const SSL
*s
)
3097 if (s
== NULL
|| s
->session
== NULL
)
3099 return (s
->session
->psk_identity
);
3102 void SSL_set_psk_client_callback(SSL
*s
,
3103 unsigned int (*cb
) (SSL
*ssl
,
3112 s
->psk_client_callback
= cb
;
3115 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
,
3116 unsigned int (*cb
) (SSL
*ssl
,
3125 ctx
->psk_client_callback
= cb
;
3128 void SSL_set_psk_server_callback(SSL
*s
,
3129 unsigned int (*cb
) (SSL
*ssl
,
3130 const char *identity
,
3135 s
->psk_server_callback
= cb
;
3138 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
,
3139 unsigned int (*cb
) (SSL
*ssl
,
3140 const char *identity
,
3145 ctx
->psk_server_callback
= cb
;
3149 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
3150 void (*cb
) (int write_p
, int version
,
3151 int content_type
, const void *buf
,
3152 size_t len
, SSL
*ssl
, void *arg
))
3154 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
3157 void SSL_set_msg_callback(SSL
*ssl
,
3158 void (*cb
) (int write_p
, int version
,
3159 int content_type
, const void *buf
,
3160 size_t len
, SSL
*ssl
, void *arg
))
3162 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
3165 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
3166 int (*cb
) (SSL
*ssl
,
3170 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
3171 (void (*)(void))cb
);
3174 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
3175 int (*cb
) (SSL
*ssl
,
3176 int is_forward_secure
))
3178 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
3179 (void (*)(void))cb
);
3183 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3184 * vairable, freeing EVP_MD_CTX previously stored in that variable, if any.
3185 * If EVP_MD pointer is passed, initializes ctx with this md Returns newly
3189 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
3191 ssl_clear_hash_ctx(hash
);
3192 *hash
= EVP_MD_CTX_create();
3194 EVP_DigestInit_ex(*hash
, md
, NULL
);
3198 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
3202 EVP_MD_CTX_destroy(*hash
);
3206 /* Retrieve handshake hashes */
3207 int ssl_handshake_hash(SSL
*s
, unsigned char *out
, int outlen
)
3209 unsigned char *p
= out
;
3214 EVP_MD_CTX_init(&ctx
);
3215 for (idx
= 0; ssl_get_handshake_digest(idx
, &mask
, &md
); idx
++) {
3216 if (mask
& ssl_get_algorithm2(s
)) {
3217 int hashsize
= EVP_MD_size(md
);
3218 EVP_MD_CTX
*hdgst
= s
->s3
->handshake_dgst
[idx
];
3219 if (!hdgst
|| hashsize
< 0 || hashsize
> outlen
)
3221 if (!EVP_MD_CTX_copy_ex(&ctx
, hdgst
))
3223 if (!EVP_DigestFinal_ex(&ctx
, p
, NULL
))
3231 EVP_MD_CTX_cleanup(&ctx
);
3235 void SSL_set_debug(SSL
*s
, int debug
)
3240 int SSL_cache_hit(SSL
*s
)
3245 int SSL_is_server(SSL
*s
)
3250 void SSL_set_security_level(SSL
*s
, int level
)
3252 s
->cert
->sec_level
= level
;
3255 int SSL_get_security_level(const SSL
*s
)
3257 return s
->cert
->sec_level
;
3260 void SSL_set_security_callback(SSL
*s
,
3261 int (*cb
) (SSL
*s
, SSL_CTX
*ctx
, int op
,
3262 int bits
, int nid
, void *other
,
3265 s
->cert
->sec_cb
= cb
;
3268 int (*SSL_get_security_callback(const SSL
*s
)) (SSL
*s
, SSL_CTX
*ctx
, int op
,
3270 void *other
, void *ex
) {
3271 return s
->cert
->sec_cb
;
3274 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
3276 s
->cert
->sec_ex
= ex
;
3279 void *SSL_get0_security_ex_data(const SSL
*s
)
3281 return s
->cert
->sec_ex
;
3284 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
3286 ctx
->cert
->sec_level
= level
;
3289 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
3291 return ctx
->cert
->sec_level
;
3294 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
3295 int (*cb
) (SSL
*s
, SSL_CTX
*ctx
, int op
,
3296 int bits
, int nid
, void *other
,
3299 ctx
->cert
->sec_cb
= cb
;
3302 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (SSL
*s
,
3308 return ctx
->cert
->sec_cb
;
3311 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
3313 ctx
->cert
->sec_ex
= ex
;
3316 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
3318 return ctx
->cert
->sec_ex
;
3321 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);