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>
161 #include <openssl/async.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 struct ssl_async_args
{
196 int (*func1
)(SSL
*, void *, int);
197 int (*func2
)(SSL
*, const void *, int);
201 static void clear_ciphers(SSL
*s
)
203 /* clear the current cipher */
204 ssl_clear_cipher_ctx(s
);
205 ssl_clear_hash_ctx(&s
->read_hash
);
206 ssl_clear_hash_ctx(&s
->write_hash
);
209 int SSL_clear(SSL
*s
)
211 if (s
->method
== NULL
) {
212 SSLerr(SSL_F_SSL_CLEAR
, SSL_R_NO_METHOD_SPECIFIED
);
216 if (ssl_clear_bad_session(s
)) {
217 SSL_SESSION_free(s
->session
);
225 if (s
->renegotiate
) {
226 SSLerr(SSL_F_SSL_CLEAR
, ERR_R_INTERNAL_ERROR
);
230 ossl_statem_clear(s
);
232 s
->version
= s
->method
->version
;
233 s
->client_version
= s
->version
;
234 s
->rwstate
= SSL_NOTHING
;
236 BUF_MEM_free(s
->init_buf
);
242 * Check to see if we were changed into a different method, if so, revert
243 * back if we are not doing session-id reuse.
245 if (!ossl_statem_get_in_handshake(s
) && (s
->session
== NULL
)
246 && (s
->method
!= s
->ctx
->method
)) {
247 s
->method
->ssl_free(s
);
248 s
->method
= s
->ctx
->method
;
249 if (!s
->method
->ssl_new(s
))
252 s
->method
->ssl_clear(s
);
254 RECORD_LAYER_clear(&s
->rlayer
);
259 /** Used to change an SSL_CTXs default SSL method type */
260 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
, const SSL_METHOD
*meth
)
262 STACK_OF(SSL_CIPHER
) *sk
;
266 sk
= ssl_create_cipher_list(ctx
->method
, &(ctx
->cipher_list
),
267 &(ctx
->cipher_list_by_id
),
268 SSL_DEFAULT_CIPHER_LIST
, ctx
->cert
);
269 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
270 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
,
271 SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
277 SSL
*SSL_new(SSL_CTX
*ctx
)
282 SSLerr(SSL_F_SSL_NEW
, SSL_R_NULL_SSL_CTX
);
285 if (ctx
->method
== NULL
) {
286 SSLerr(SSL_F_SSL_NEW
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
290 s
= OPENSSL_zalloc(sizeof(*s
));
294 RECORD_LAYER_init(&s
->rlayer
, s
);
296 s
->options
= ctx
->options
;
298 s
->max_cert_list
= ctx
->max_cert_list
;
302 * Earlier library versions used to copy the pointer to the CERT, not
303 * its contents; only when setting new parameters for the per-SSL
304 * copy, ssl_cert_new would be called (and the direct reference to
305 * the per-SSL_CTX settings would be lost, but those still were
306 * indirectly accessed for various purposes, and for that reason they
307 * used to be known as s->ctx->default_cert). Now we don't look at the
308 * SSL_CTX's CERT after having duplicated it once.
310 s
->cert
= ssl_cert_dup(ctx
->cert
);
314 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
315 s
->msg_callback
= ctx
->msg_callback
;
316 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
317 s
->verify_mode
= ctx
->verify_mode
;
318 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
319 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
320 OPENSSL_assert(s
->sid_ctx_length
<= sizeof s
->sid_ctx
);
321 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
322 s
->verify_callback
= ctx
->default_verify_callback
;
323 s
->generate_session_id
= ctx
->generate_session_id
;
325 s
->param
= X509_VERIFY_PARAM_new();
326 if (s
->param
== NULL
)
328 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
329 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
330 s
->max_send_fragment
= ctx
->max_send_fragment
;
332 CRYPTO_add(&ctx
->references
, 1, CRYPTO_LOCK_SSL_CTX
);
334 s
->tlsext_debug_cb
= 0;
335 s
->tlsext_debug_arg
= NULL
;
336 s
->tlsext_ticket_expected
= 0;
337 s
->tlsext_status_type
= -1;
338 s
->tlsext_status_expected
= 0;
339 s
->tlsext_ocsp_ids
= NULL
;
340 s
->tlsext_ocsp_exts
= NULL
;
341 s
->tlsext_ocsp_resp
= NULL
;
342 s
->tlsext_ocsp_resplen
= -1;
343 CRYPTO_add(&ctx
->references
, 1, CRYPTO_LOCK_SSL_CTX
);
344 s
->initial_ctx
= ctx
;
345 # ifndef OPENSSL_NO_EC
346 if (ctx
->tlsext_ecpointformatlist
) {
347 s
->tlsext_ecpointformatlist
=
348 BUF_memdup(ctx
->tlsext_ecpointformatlist
,
349 ctx
->tlsext_ecpointformatlist_length
);
350 if (!s
->tlsext_ecpointformatlist
)
352 s
->tlsext_ecpointformatlist_length
=
353 ctx
->tlsext_ecpointformatlist_length
;
355 if (ctx
->tlsext_ellipticcurvelist
) {
356 s
->tlsext_ellipticcurvelist
=
357 BUF_memdup(ctx
->tlsext_ellipticcurvelist
,
358 ctx
->tlsext_ellipticcurvelist_length
);
359 if (!s
->tlsext_ellipticcurvelist
)
361 s
->tlsext_ellipticcurvelist_length
=
362 ctx
->tlsext_ellipticcurvelist_length
;
365 # ifndef OPENSSL_NO_NEXTPROTONEG
366 s
->next_proto_negotiated
= NULL
;
369 if (s
->ctx
->alpn_client_proto_list
) {
370 s
->alpn_client_proto_list
=
371 OPENSSL_malloc(s
->ctx
->alpn_client_proto_list_len
);
372 if (s
->alpn_client_proto_list
== NULL
)
374 memcpy(s
->alpn_client_proto_list
, s
->ctx
->alpn_client_proto_list
,
375 s
->ctx
->alpn_client_proto_list_len
);
376 s
->alpn_client_proto_list_len
= s
->ctx
->alpn_client_proto_list_len
;
379 s
->verify_result
= X509_V_OK
;
381 s
->default_passwd_callback
= ctx
->default_passwd_callback
;
382 s
->default_passwd_callback_userdata
= ctx
->default_passwd_callback_userdata
;
384 s
->method
= ctx
->method
;
386 if (!s
->method
->ssl_new(s
))
389 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
394 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
396 #ifndef OPENSSL_NO_PSK
397 s
->psk_client_callback
= ctx
->psk_client_callback
;
398 s
->psk_server_callback
= ctx
->psk_server_callback
;
406 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
410 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
411 unsigned int sid_ctx_len
)
413 if (sid_ctx_len
> sizeof ctx
->sid_ctx
) {
414 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,
415 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
418 ctx
->sid_ctx_length
= sid_ctx_len
;
419 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
424 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
425 unsigned int sid_ctx_len
)
427 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
428 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,
429 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
432 ssl
->sid_ctx_length
= sid_ctx_len
;
433 memcpy(ssl
->sid_ctx
, sid_ctx
, sid_ctx_len
);
438 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
440 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX
);
441 ctx
->generate_session_id
= cb
;
442 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX
);
446 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
448 CRYPTO_w_lock(CRYPTO_LOCK_SSL
);
449 ssl
->generate_session_id
= cb
;
450 CRYPTO_w_unlock(CRYPTO_LOCK_SSL
);
454 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
458 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
459 * we can "construct" a session to give us the desired check - ie. to
460 * find if there's a session in the hash table that would conflict with
461 * any new session built out of this id/id_len and the ssl_version in use
466 if (id_len
> sizeof r
.session_id
)
469 r
.ssl_version
= ssl
->version
;
470 r
.session_id_length
= id_len
;
471 memcpy(r
.session_id
, id
, id_len
);
473 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX
);
474 p
= lh_SSL_SESSION_retrieve(ssl
->ctx
->sessions
, &r
);
475 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX
);
479 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
481 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
484 int SSL_set_purpose(SSL
*s
, int purpose
)
486 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
489 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
491 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
494 int SSL_set_trust(SSL
*s
, int trust
)
496 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
499 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
501 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
504 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
506 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
509 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
514 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
519 void SSL_certs_clear(SSL
*s
)
521 ssl_cert_clear_certs(s
->cert
);
524 void SSL_free(SSL
*s
)
531 i
= CRYPTO_add(&s
->references
, -1, CRYPTO_LOCK_SSL
);
539 fprintf(stderr
, "SSL_free, bad reference count\n");
544 X509_VERIFY_PARAM_free(s
->param
);
545 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
547 if (s
->bbio
!= NULL
) {
548 /* If the buffering BIO is in place, pop it off */
549 if (s
->bbio
== s
->wbio
) {
550 s
->wbio
= BIO_pop(s
->wbio
);
555 BIO_free_all(s
->rbio
);
556 if (s
->wbio
!= s
->rbio
)
557 BIO_free_all(s
->wbio
);
559 BUF_MEM_free(s
->init_buf
);
561 /* add extra stuff */
562 sk_SSL_CIPHER_free(s
->cipher_list
);
563 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
565 /* Make the next call work :-) */
566 if (s
->session
!= NULL
) {
567 ssl_clear_bad_session(s
);
568 SSL_SESSION_free(s
->session
);
573 ssl_cert_free(s
->cert
);
574 /* Free up if allocated */
576 OPENSSL_free(s
->tlsext_hostname
);
577 SSL_CTX_free(s
->initial_ctx
);
578 #ifndef OPENSSL_NO_EC
579 OPENSSL_free(s
->tlsext_ecpointformatlist
);
580 OPENSSL_free(s
->tlsext_ellipticcurvelist
);
581 #endif /* OPENSSL_NO_EC */
582 sk_X509_EXTENSION_pop_free(s
->tlsext_ocsp_exts
, X509_EXTENSION_free
);
583 sk_OCSP_RESPID_pop_free(s
->tlsext_ocsp_ids
, OCSP_RESPID_free
);
584 OPENSSL_free(s
->tlsext_ocsp_resp
);
585 OPENSSL_free(s
->alpn_client_proto_list
);
587 sk_X509_NAME_pop_free(s
->client_CA
, X509_NAME_free
);
589 if (s
->method
!= NULL
)
590 s
->method
->ssl_free(s
);
592 RECORD_LAYER_release(&s
->rlayer
);
594 SSL_CTX_free(s
->ctx
);
596 #if !defined(OPENSSL_NO_NEXTPROTONEG)
597 OPENSSL_free(s
->next_proto_negotiated
);
600 #ifndef OPENSSL_NO_SRTP
601 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
607 void SSL_set_rbio(SSL
*s
, BIO
*rbio
)
610 BIO_free_all(s
->rbio
);
614 void SSL_set_wbio(SSL
*s
, BIO
*wbio
)
617 * If the output buffering BIO is still in place, remove it
619 if (s
->bbio
!= NULL
) {
620 if (s
->wbio
== s
->bbio
) {
621 s
->wbio
= s
->wbio
->next_bio
;
622 s
->bbio
->next_bio
= NULL
;
625 if (s
->wbio
!= wbio
&& s
->rbio
!= s
->wbio
)
626 BIO_free_all(s
->wbio
);
630 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
632 SSL_set_wbio(s
, wbio
);
633 SSL_set_rbio(s
, rbio
);
636 BIO
*SSL_get_rbio(const SSL
*s
)
641 BIO
*SSL_get_wbio(const SSL
*s
)
646 int SSL_get_fd(const SSL
*s
)
648 return (SSL_get_rfd(s
));
651 int SSL_get_rfd(const SSL
*s
)
657 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
663 int SSL_get_wfd(const SSL
*s
)
669 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
675 #ifndef OPENSSL_NO_SOCK
676 int SSL_set_fd(SSL
*s
, int fd
)
681 bio
= BIO_new(BIO_s_socket());
684 SSLerr(SSL_F_SSL_SET_FD
, ERR_R_BUF_LIB
);
687 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
688 SSL_set_bio(s
, bio
, bio
);
694 int SSL_set_wfd(SSL
*s
, int fd
)
699 if ((s
->rbio
== NULL
) || (BIO_method_type(s
->rbio
) != BIO_TYPE_SOCKET
)
700 || ((int)BIO_get_fd(s
->rbio
, NULL
) != fd
)) {
701 bio
= BIO_new(BIO_s_socket());
704 SSLerr(SSL_F_SSL_SET_WFD
, ERR_R_BUF_LIB
);
707 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
708 SSL_set_bio(s
, SSL_get_rbio(s
), bio
);
710 SSL_set_bio(s
, SSL_get_rbio(s
), SSL_get_rbio(s
));
716 int SSL_set_rfd(SSL
*s
, int fd
)
721 if ((s
->wbio
== NULL
) || (BIO_method_type(s
->wbio
) != BIO_TYPE_SOCKET
)
722 || ((int)BIO_get_fd(s
->wbio
, NULL
) != fd
)) {
723 bio
= BIO_new(BIO_s_socket());
726 SSLerr(SSL_F_SSL_SET_RFD
, ERR_R_BUF_LIB
);
729 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
730 SSL_set_bio(s
, bio
, SSL_get_wbio(s
));
732 SSL_set_bio(s
, SSL_get_wbio(s
), SSL_get_wbio(s
));
739 /* return length of latest Finished message we sent, copy to 'buf' */
740 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
745 ret
= s
->s3
->tmp
.finish_md_len
;
748 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
753 /* return length of latest Finished message we expected, copy to 'buf' */
754 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
759 ret
= s
->s3
->tmp
.peer_finish_md_len
;
762 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
767 int SSL_get_verify_mode(const SSL
*s
)
769 return (s
->verify_mode
);
772 int SSL_get_verify_depth(const SSL
*s
)
774 return X509_VERIFY_PARAM_get_depth(s
->param
);
777 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
778 return (s
->verify_callback
);
781 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
783 return (ctx
->verify_mode
);
786 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
788 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
791 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
792 return (ctx
->default_verify_callback
);
795 void SSL_set_verify(SSL
*s
, int mode
,
796 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
798 s
->verify_mode
= mode
;
799 if (callback
!= NULL
)
800 s
->verify_callback
= callback
;
803 void SSL_set_verify_depth(SSL
*s
, int depth
)
805 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
808 void SSL_set_read_ahead(SSL
*s
, int yes
)
810 RECORD_LAYER_set_read_ahead(&s
->rlayer
, yes
);
813 int SSL_get_read_ahead(const SSL
*s
)
815 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
818 int SSL_pending(const SSL
*s
)
821 * SSL_pending cannot work properly if read-ahead is enabled
822 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
823 * impossible to fix since SSL_pending cannot report errors that may be
824 * observed while scanning the new data. (Note that SSL_pending() is
825 * often used as a boolean value, so we'd better not return -1.)
827 return (s
->method
->ssl_pending(s
));
830 X509
*SSL_get_peer_certificate(const SSL
*s
)
834 if ((s
== NULL
) || (s
->session
== NULL
))
837 r
= s
->session
->peer
;
847 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
851 if ((s
== NULL
) || (s
->session
== NULL
))
854 r
= s
->session
->peer_chain
;
857 * If we are a client, cert_chain includes the peer's own certificate; if
858 * we are a server, it does not.
865 * Now in theory, since the calling process own 't' it should be safe to
866 * modify. We need to be able to read f without being hassled
868 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
870 /* Do we need to to SSL locking? */
871 if (!SSL_set_session(t
, SSL_get_session(f
))) {
876 * what if we are setup for one protocol version but want to talk another
878 if (t
->method
!= f
->method
) {
879 t
->method
->ssl_free(t
); /* cleanup current */
880 t
->method
= f
->method
; /* change method */
881 t
->method
->ssl_new(t
); /* setup new */
884 CRYPTO_add(&f
->cert
->references
, 1, CRYPTO_LOCK_SSL_CERT
);
885 ssl_cert_free(t
->cert
);
887 if (!SSL_set_session_id_context(t
, f
->sid_ctx
, f
->sid_ctx_length
)) {
894 /* Fix this so it checks all the valid key/cert options */
895 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
898 (ctx
->cert
->key
->x509
== NULL
)) {
899 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,
900 SSL_R_NO_CERTIFICATE_ASSIGNED
);
903 if (ctx
->cert
->key
->privatekey
== NULL
) {
904 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,
905 SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
908 return (X509_check_private_key
909 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
));
912 /* Fix this function so that it takes an optional type parameter */
913 int SSL_check_private_key(const SSL
*ssl
)
916 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, ERR_R_PASSED_NULL_PARAMETER
);
919 if (ssl
->cert
->key
->x509
== NULL
) {
920 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
923 if (ssl
->cert
->key
->privatekey
== NULL
) {
924 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
927 return (X509_check_private_key(ssl
->cert
->key
->x509
,
928 ssl
->cert
->key
->privatekey
));
931 int SSL_waiting_for_async(SSL
*s
)
939 int SSL_get_async_wait_fd(SSL
*s
)
944 return ASYNC_get_wait_fd(s
->job
);
947 int SSL_accept(SSL
*s
)
949 if (s
->handshake_func
== 0) {
950 /* Not properly initialized yet */
951 SSL_set_accept_state(s
);
954 return SSL_do_handshake(s
);
957 int SSL_connect(SSL
*s
)
959 if (s
->handshake_func
== 0) {
960 /* Not properly initialized yet */
961 SSL_set_connect_state(s
);
964 return SSL_do_handshake(s
);
967 long SSL_get_default_timeout(const SSL
*s
)
969 return (s
->method
->get_timeout());
972 static int ssl_start_async_job(SSL
*s
, struct ssl_async_args
*args
,
973 int (*func
)(void *)) {
975 switch(ASYNC_start_job(&s
->job
, &ret
, func
, args
,
976 sizeof(struct ssl_async_args
))) {
978 s
->rwstate
= SSL_NOTHING
;
979 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, SSL_R_FAILED_TO_INIT_ASYNC
);
982 s
->rwstate
= SSL_ASYNC_PAUSED
;
988 s
->rwstate
= SSL_NOTHING
;
989 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, ERR_R_INTERNAL_ERROR
);
990 /* Shouldn't happen */
995 static int ssl_io_intern(void *vargs
)
997 struct ssl_async_args
*args
;
1002 args
= (struct ssl_async_args
*)vargs
;
1006 if (args
->type
== 1)
1007 return args
->f
.func1(s
, buf
, num
);
1009 return args
->f
.func2(s
, buf
, num
);
1012 int SSL_read(SSL
*s
, void *buf
, int num
)
1014 if (s
->handshake_func
== 0) {
1015 SSLerr(SSL_F_SSL_READ
, SSL_R_UNINITIALIZED
);
1019 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1020 s
->rwstate
= SSL_NOTHING
;
1024 if((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1025 struct ssl_async_args args
;
1031 args
.f
.func1
= s
->method
->ssl_read
;
1033 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
1035 return s
->method
->ssl_read(s
, buf
, num
);
1039 int SSL_peek(SSL
*s
, void *buf
, int num
)
1041 if (s
->handshake_func
== 0) {
1042 SSLerr(SSL_F_SSL_PEEK
, SSL_R_UNINITIALIZED
);
1046 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1049 if((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1050 struct ssl_async_args args
;
1056 args
.f
.func1
= s
->method
->ssl_peek
;
1058 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
1060 return s
->method
->ssl_peek(s
, buf
, num
);
1064 int SSL_write(SSL
*s
, const void *buf
, int num
)
1066 if (s
->handshake_func
== 0) {
1067 SSLerr(SSL_F_SSL_WRITE
, SSL_R_UNINITIALIZED
);
1071 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
1072 s
->rwstate
= SSL_NOTHING
;
1073 SSLerr(SSL_F_SSL_WRITE
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
1077 if((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1078 struct ssl_async_args args
;
1081 args
.buf
= (void *)buf
;
1084 args
.f
.func2
= s
->method
->ssl_write
;
1086 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
1088 return s
->method
->ssl_write(s
, buf
, num
);
1092 int SSL_shutdown(SSL
*s
)
1095 * Note that this function behaves differently from what one might
1096 * expect. Return values are 0 for no success (yet), 1 for success; but
1097 * calling it once is usually not enough, even if blocking I/O is used
1098 * (see ssl3_shutdown).
1101 if (s
->handshake_func
== 0) {
1102 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
1106 if (!SSL_in_init(s
))
1107 return (s
->method
->ssl_shutdown(s
));
1112 int SSL_renegotiate(SSL
*s
)
1114 if (s
->renegotiate
== 0)
1119 return (s
->method
->ssl_renegotiate(s
));
1122 int SSL_renegotiate_abbreviated(SSL
*s
)
1124 if (s
->renegotiate
== 0)
1129 return (s
->method
->ssl_renegotiate(s
));
1132 int SSL_renegotiate_pending(SSL
*s
)
1135 * becomes true when negotiation is requested; false again once a
1136 * handshake has finished
1138 return (s
->renegotiate
!= 0);
1141 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
1146 case SSL_CTRL_GET_READ_AHEAD
:
1147 return (RECORD_LAYER_get_read_ahead(&s
->rlayer
));
1148 case SSL_CTRL_SET_READ_AHEAD
:
1149 l
= RECORD_LAYER_get_read_ahead(&s
->rlayer
);
1150 RECORD_LAYER_set_read_ahead(&s
->rlayer
, larg
);
1153 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1154 s
->msg_callback_arg
= parg
;
1157 case SSL_CTRL_OPTIONS
:
1158 return (s
->options
|= larg
);
1159 case SSL_CTRL_CLEAR_OPTIONS
:
1160 return (s
->options
&= ~larg
);
1162 return (s
->mode
|= larg
);
1163 case SSL_CTRL_CLEAR_MODE
:
1164 return (s
->mode
&= ~larg
);
1165 case SSL_CTRL_GET_MAX_CERT_LIST
:
1166 return (s
->max_cert_list
);
1167 case SSL_CTRL_SET_MAX_CERT_LIST
:
1168 l
= s
->max_cert_list
;
1169 s
->max_cert_list
= larg
;
1171 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
1172 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
1174 s
->max_send_fragment
= larg
;
1176 case SSL_CTRL_GET_RI_SUPPORT
:
1178 return s
->s3
->send_connection_binding
;
1181 case SSL_CTRL_CERT_FLAGS
:
1182 return (s
->cert
->cert_flags
|= larg
);
1183 case SSL_CTRL_CLEAR_CERT_FLAGS
:
1184 return (s
->cert
->cert_flags
&= ~larg
);
1186 case SSL_CTRL_GET_RAW_CIPHERLIST
:
1188 if (s
->s3
->tmp
.ciphers_raw
== NULL
)
1190 *(unsigned char **)parg
= s
->s3
->tmp
.ciphers_raw
;
1191 return (int)s
->s3
->tmp
.ciphers_rawlen
;
1193 return TLS_CIPHER_LEN
;
1195 case SSL_CTRL_GET_EXTMS_SUPPORT
:
1196 if (!s
->session
|| SSL_in_init(s
) || ossl_statem_get_in_handshake(s
))
1198 if (s
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
1203 return (s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
));
1207 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
1210 case SSL_CTRL_SET_MSG_CALLBACK
:
1211 s
->msg_callback
= (void (*)
1212 (int write_p
, int version
, int content_type
,
1213 const void *buf
, size_t len
, SSL
*ssl
,
1218 return (s
->method
->ssl_callback_ctrl(s
, cmd
, fp
));
1222 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
1224 return ctx
->sessions
;
1227 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
1230 /* For some cases with ctx == NULL perform syntax checks */
1233 #ifndef OPENSSL_NO_EC
1234 case SSL_CTRL_SET_CURVES_LIST
:
1235 return tls1_set_curves_list(NULL
, NULL
, parg
);
1237 case SSL_CTRL_SET_SIGALGS_LIST
:
1238 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
1239 return tls1_set_sigalgs_list(NULL
, parg
, 0);
1246 case SSL_CTRL_GET_READ_AHEAD
:
1247 return (ctx
->read_ahead
);
1248 case SSL_CTRL_SET_READ_AHEAD
:
1249 l
= ctx
->read_ahead
;
1250 ctx
->read_ahead
= larg
;
1253 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1254 ctx
->msg_callback_arg
= parg
;
1257 case SSL_CTRL_GET_MAX_CERT_LIST
:
1258 return (ctx
->max_cert_list
);
1259 case SSL_CTRL_SET_MAX_CERT_LIST
:
1260 l
= ctx
->max_cert_list
;
1261 ctx
->max_cert_list
= larg
;
1264 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
1265 l
= ctx
->session_cache_size
;
1266 ctx
->session_cache_size
= larg
;
1268 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
1269 return (ctx
->session_cache_size
);
1270 case SSL_CTRL_SET_SESS_CACHE_MODE
:
1271 l
= ctx
->session_cache_mode
;
1272 ctx
->session_cache_mode
= larg
;
1274 case SSL_CTRL_GET_SESS_CACHE_MODE
:
1275 return (ctx
->session_cache_mode
);
1277 case SSL_CTRL_SESS_NUMBER
:
1278 return (lh_SSL_SESSION_num_items(ctx
->sessions
));
1279 case SSL_CTRL_SESS_CONNECT
:
1280 return (ctx
->stats
.sess_connect
);
1281 case SSL_CTRL_SESS_CONNECT_GOOD
:
1282 return (ctx
->stats
.sess_connect_good
);
1283 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
1284 return (ctx
->stats
.sess_connect_renegotiate
);
1285 case SSL_CTRL_SESS_ACCEPT
:
1286 return (ctx
->stats
.sess_accept
);
1287 case SSL_CTRL_SESS_ACCEPT_GOOD
:
1288 return (ctx
->stats
.sess_accept_good
);
1289 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
1290 return (ctx
->stats
.sess_accept_renegotiate
);
1291 case SSL_CTRL_SESS_HIT
:
1292 return (ctx
->stats
.sess_hit
);
1293 case SSL_CTRL_SESS_CB_HIT
:
1294 return (ctx
->stats
.sess_cb_hit
);
1295 case SSL_CTRL_SESS_MISSES
:
1296 return (ctx
->stats
.sess_miss
);
1297 case SSL_CTRL_SESS_TIMEOUTS
:
1298 return (ctx
->stats
.sess_timeout
);
1299 case SSL_CTRL_SESS_CACHE_FULL
:
1300 return (ctx
->stats
.sess_cache_full
);
1301 case SSL_CTRL_OPTIONS
:
1302 return (ctx
->options
|= larg
);
1303 case SSL_CTRL_CLEAR_OPTIONS
:
1304 return (ctx
->options
&= ~larg
);
1306 return (ctx
->mode
|= larg
);
1307 case SSL_CTRL_CLEAR_MODE
:
1308 return (ctx
->mode
&= ~larg
);
1309 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
1310 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
1312 ctx
->max_send_fragment
= larg
;
1314 case SSL_CTRL_CERT_FLAGS
:
1315 return (ctx
->cert
->cert_flags
|= larg
);
1316 case SSL_CTRL_CLEAR_CERT_FLAGS
:
1317 return (ctx
->cert
->cert_flags
&= ~larg
);
1319 return (ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
));
1323 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
1326 case SSL_CTRL_SET_MSG_CALLBACK
:
1327 ctx
->msg_callback
= (void (*)
1328 (int write_p
, int version
, int content_type
,
1329 const void *buf
, size_t len
, SSL
*ssl
,
1334 return (ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
));
1338 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
1347 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
1348 const SSL_CIPHER
*const *bp
)
1350 if ((*ap
)->id
> (*bp
)->id
)
1352 if ((*ap
)->id
< (*bp
)->id
)
1357 /** return a STACK of the ciphers available for the SSL and in order of
1359 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
1362 if (s
->cipher_list
!= NULL
) {
1363 return (s
->cipher_list
);
1364 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
1365 return (s
->ctx
->cipher_list
);
1371 STACK_OF(SSL_CIPHER
) *SSL_get_client_ciphers(const SSL
*s
)
1373 if ((s
== NULL
) || (s
->session
== NULL
) || !s
->server
)
1375 return s
->session
->ciphers
;
1378 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
1380 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
1382 ciphers
= SSL_get_ciphers(s
);
1385 ssl_set_client_disabled(s
);
1386 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
1387 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
1388 if (!ssl_cipher_disabled(s
, c
, SSL_SECOP_CIPHER_SUPPORTED
)) {
1390 sk
= sk_SSL_CIPHER_new_null();
1393 if (!sk_SSL_CIPHER_push(sk
, c
)) {
1394 sk_SSL_CIPHER_free(sk
);
1402 /** return a STACK of the ciphers available for the SSL and in order of
1404 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
1407 if (s
->cipher_list_by_id
!= NULL
) {
1408 return (s
->cipher_list_by_id
);
1409 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list_by_id
!= NULL
)) {
1410 return (s
->ctx
->cipher_list_by_id
);
1416 /** The old interface to get the same thing as SSL_get_ciphers() */
1417 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
1420 STACK_OF(SSL_CIPHER
) *sk
;
1424 sk
= SSL_get_ciphers(s
);
1425 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
1427 c
= sk_SSL_CIPHER_value(sk
, n
);
1433 /** specify the ciphers to be used by default by the SSL_CTX */
1434 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
1436 STACK_OF(SSL_CIPHER
) *sk
;
1438 sk
= ssl_create_cipher_list(ctx
->method
, &ctx
->cipher_list
,
1439 &ctx
->cipher_list_by_id
, str
, ctx
->cert
);
1441 * ssl_create_cipher_list may return an empty stack if it was unable to
1442 * find a cipher matching the given rule string (for example if the rule
1443 * string specifies a cipher which has been disabled). This is not an
1444 * error as far as ssl_create_cipher_list is concerned, and hence
1445 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
1449 else if (sk_SSL_CIPHER_num(sk
) == 0) {
1450 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
1456 /** specify the ciphers to be used by the SSL */
1457 int SSL_set_cipher_list(SSL
*s
, const char *str
)
1459 STACK_OF(SSL_CIPHER
) *sk
;
1461 sk
= ssl_create_cipher_list(s
->ctx
->method
, &s
->cipher_list
,
1462 &s
->cipher_list_by_id
, str
, s
->cert
);
1463 /* see comment in SSL_CTX_set_cipher_list */
1466 else if (sk_SSL_CIPHER_num(sk
) == 0) {
1467 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
1473 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int len
)
1476 STACK_OF(SSL_CIPHER
) *sk
;
1480 if ((s
->session
== NULL
) || (s
->session
->ciphers
== NULL
) || (len
< 2))
1484 sk
= s
->session
->ciphers
;
1486 if (sk_SSL_CIPHER_num(sk
) == 0)
1489 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); i
++) {
1492 c
= sk_SSL_CIPHER_value(sk
, i
);
1493 n
= strlen(c
->name
);
1509 /** return a servername extension value if provided in Client Hello, or NULL.
1510 * So far, only host_name types are defined (RFC 3546).
1513 const char *SSL_get_servername(const SSL
*s
, const int type
)
1515 if (type
!= TLSEXT_NAMETYPE_host_name
)
1518 return s
->session
&& !s
->tlsext_hostname
?
1519 s
->session
->tlsext_hostname
: s
->tlsext_hostname
;
1522 int SSL_get_servername_type(const SSL
*s
)
1525 && (!s
->tlsext_hostname
? s
->session
->
1526 tlsext_hostname
: s
->tlsext_hostname
))
1527 return TLSEXT_NAMETYPE_host_name
;
1532 * SSL_select_next_proto implements the standard protocol selection. It is
1533 * expected that this function is called from the callback set by
1534 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
1535 * vector of 8-bit, length prefixed byte strings. The length byte itself is
1536 * not included in the length. A byte string of length 0 is invalid. No byte
1537 * string may be truncated. The current, but experimental algorithm for
1538 * selecting the protocol is: 1) If the server doesn't support NPN then this
1539 * is indicated to the callback. In this case, the client application has to
1540 * abort the connection or have a default application level protocol. 2) If
1541 * the server supports NPN, but advertises an empty list then the client
1542 * selects the first protcol in its list, but indicates via the API that this
1543 * fallback case was enacted. 3) Otherwise, the client finds the first
1544 * protocol in the server's list that it supports and selects this protocol.
1545 * This is because it's assumed that the server has better information about
1546 * which protocol a client should use. 4) If the client doesn't support any
1547 * of the server's advertised protocols, then this is treated the same as
1548 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
1549 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1551 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
1552 const unsigned char *server
,
1553 unsigned int server_len
,
1554 const unsigned char *client
,
1555 unsigned int client_len
)
1558 const unsigned char *result
;
1559 int status
= OPENSSL_NPN_UNSUPPORTED
;
1562 * For each protocol in server preference order, see if we support it.
1564 for (i
= 0; i
< server_len
;) {
1565 for (j
= 0; j
< client_len
;) {
1566 if (server
[i
] == client
[j
] &&
1567 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
1568 /* We found a match */
1569 result
= &server
[i
];
1570 status
= OPENSSL_NPN_NEGOTIATED
;
1580 /* There's no overlap between our protocols and the server's list. */
1582 status
= OPENSSL_NPN_NO_OVERLAP
;
1585 *out
= (unsigned char *)result
+ 1;
1586 *outlen
= result
[0];
1590 #ifndef OPENSSL_NO_NEXTPROTONEG
1592 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
1593 * client's requested protocol for this connection and returns 0. If the
1594 * client didn't request any protocol, then *data is set to NULL. Note that
1595 * the client can request any protocol it chooses. The value returned from
1596 * this function need not be a member of the list of supported protocols
1597 * provided by the callback.
1599 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
1602 *data
= s
->next_proto_negotiated
;
1606 *len
= s
->next_proto_negotiated_len
;
1611 * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when
1612 * a TLS server needs a list of supported protocols for Next Protocol
1613 * Negotiation. The returned list must be in wire format. The list is
1614 * returned by setting |out| to point to it and |outlen| to its length. This
1615 * memory will not be modified, but one should assume that the SSL* keeps a
1616 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
1617 * wishes to advertise. Otherwise, no such extension will be included in the
1620 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX
*ctx
,
1621 int (*cb
) (SSL
*ssl
,
1624 unsigned int *outlen
,
1625 void *arg
), void *arg
)
1627 ctx
->next_protos_advertised_cb
= cb
;
1628 ctx
->next_protos_advertised_cb_arg
= arg
;
1632 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1633 * client needs to select a protocol from the server's provided list. |out|
1634 * must be set to point to the selected protocol (which may be within |in|).
1635 * The length of the protocol name must be written into |outlen|. The
1636 * server's advertised protocols are provided in |in| and |inlen|. The
1637 * callback can assume that |in| is syntactically valid. The client must
1638 * select a protocol. It is fatal to the connection if this callback returns
1639 * a value other than SSL_TLSEXT_ERR_OK.
1641 void SSL_CTX_set_next_proto_select_cb(SSL_CTX
*ctx
,
1642 int (*cb
) (SSL
*s
, unsigned char **out
,
1643 unsigned char *outlen
,
1644 const unsigned char *in
,
1646 void *arg
), void *arg
)
1648 ctx
->next_proto_select_cb
= cb
;
1649 ctx
->next_proto_select_cb_arg
= arg
;
1654 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
1655 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1656 * length-prefixed strings). Returns 0 on success.
1658 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
1659 unsigned protos_len
)
1661 OPENSSL_free(ctx
->alpn_client_proto_list
);
1662 ctx
->alpn_client_proto_list
= OPENSSL_malloc(protos_len
);
1663 if (ctx
->alpn_client_proto_list
== NULL
)
1665 memcpy(ctx
->alpn_client_proto_list
, protos
, protos_len
);
1666 ctx
->alpn_client_proto_list_len
= protos_len
;
1672 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
1673 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1674 * length-prefixed strings). Returns 0 on success.
1676 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
1677 unsigned protos_len
)
1679 OPENSSL_free(ssl
->alpn_client_proto_list
);
1680 ssl
->alpn_client_proto_list
= OPENSSL_malloc(protos_len
);
1681 if (ssl
->alpn_client_proto_list
== NULL
)
1683 memcpy(ssl
->alpn_client_proto_list
, protos
, protos_len
);
1684 ssl
->alpn_client_proto_list_len
= protos_len
;
1690 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
1691 * called during ClientHello processing in order to select an ALPN protocol
1692 * from the client's list of offered protocols.
1694 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
1695 int (*cb
) (SSL
*ssl
,
1696 const unsigned char **out
,
1697 unsigned char *outlen
,
1698 const unsigned char *in
,
1700 void *arg
), void *arg
)
1702 ctx
->alpn_select_cb
= cb
;
1703 ctx
->alpn_select_cb_arg
= arg
;
1707 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from
1708 * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name
1709 * (not including the leading length-prefix byte). If the server didn't
1710 * respond with a negotiated protocol then |*len| will be zero.
1712 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
1717 *data
= ssl
->s3
->alpn_selected
;
1721 *len
= ssl
->s3
->alpn_selected_len
;
1725 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
1726 const char *label
, size_t llen
,
1727 const unsigned char *p
, size_t plen
,
1730 if (s
->version
< TLS1_VERSION
)
1733 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
1738 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
1743 ((unsigned int)a
->session_id
[0]) |
1744 ((unsigned int)a
->session_id
[1] << 8L) |
1745 ((unsigned long)a
->session_id
[2] << 16L) |
1746 ((unsigned long)a
->session_id
[3] << 24L);
1751 * NB: If this function (or indeed the hash function which uses a sort of
1752 * coarser function than this one) is changed, ensure
1753 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
1754 * being able to construct an SSL_SESSION that will collide with any existing
1755 * session with a matching session ID.
1757 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
1759 if (a
->ssl_version
!= b
->ssl_version
)
1761 if (a
->session_id_length
!= b
->session_id_length
)
1763 return (memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
));
1767 * These wrapper functions should remain rather than redeclaring
1768 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1769 * variable. The reason is that the functions aren't static, they're exposed
1772 static IMPLEMENT_LHASH_HASH_FN(ssl_session
, SSL_SESSION
)
1773 static IMPLEMENT_LHASH_COMP_FN(ssl_session
, SSL_SESSION
)
1775 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
1777 SSL_CTX
*ret
= NULL
;
1780 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_NULL_SSL_METHOD_PASSED
);
1784 if (FIPS_mode() && (meth
->version
< TLS1_VERSION
)) {
1785 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE
);
1789 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
1790 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
1793 ret
= OPENSSL_zalloc(sizeof(*ret
));
1798 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
1799 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
1800 /* We take the system default. */
1801 ret
->session_timeout
= meth
->get_timeout();
1802 ret
->references
= 1;
1803 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
1804 ret
->verify_mode
= SSL_VERIFY_NONE
;
1805 if ((ret
->cert
= ssl_cert_new()) == NULL
)
1808 ret
->sessions
= lh_SSL_SESSION_new();
1809 if (ret
->sessions
== NULL
)
1811 ret
->cert_store
= X509_STORE_new();
1812 if (ret
->cert_store
== NULL
)
1815 if (!ssl_create_cipher_list(ret
->method
,
1816 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
1817 SSL_DEFAULT_CIPHER_LIST
, ret
->cert
)
1818 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
1819 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
1823 ret
->param
= X509_VERIFY_PARAM_new();
1824 if (ret
->param
== NULL
)
1827 if ((ret
->md5
= EVP_get_digestbyname("ssl3-md5")) == NULL
) {
1828 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
1831 if ((ret
->sha1
= EVP_get_digestbyname("ssl3-sha1")) == NULL
) {
1832 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
1836 if ((ret
->client_CA
= sk_X509_NAME_new_null()) == NULL
)
1839 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
);
1841 /* No compression for DTLS */
1842 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
1843 ret
->comp_methods
= SSL_COMP_get_compression_methods();
1845 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
1847 /* Setup RFC4507 ticket keys */
1848 if ((RAND_bytes(ret
->tlsext_tick_key_name
, 16) <= 0)
1849 || (RAND_bytes(ret
->tlsext_tick_hmac_key
, 16) <= 0)
1850 || (RAND_bytes(ret
->tlsext_tick_aes_key
, 16) <= 0))
1851 ret
->options
|= SSL_OP_NO_TICKET
;
1853 #ifndef OPENSSL_NO_SRP
1854 if (!SSL_CTX_SRP_CTX_init(ret
))
1857 #ifndef OPENSSL_NO_ENGINE
1858 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1859 # define eng_strx(x) #x
1860 # define eng_str(x) eng_strx(x)
1861 /* Use specific client engine automatically... ignore errors */
1864 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
1867 ENGINE_load_builtin_engines();
1868 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
1870 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
1876 * Default is to connect to non-RI servers. When RI is more widely
1877 * deployed might change this.
1879 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
1883 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
1889 void SSL_CTX_free(SSL_CTX
*a
)
1896 i
= CRYPTO_add(&a
->references
, -1, CRYPTO_LOCK_SSL_CTX
);
1898 REF_PRINT("SSL_CTX", a
);
1904 fprintf(stderr
, "SSL_CTX_free, bad reference count\n");
1909 X509_VERIFY_PARAM_free(a
->param
);
1912 * Free internal session cache. However: the remove_cb() may reference
1913 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1914 * after the sessions were flushed.
1915 * As the ex_data handling routines might also touch the session cache,
1916 * the most secure solution seems to be: empty (flush) the cache, then
1917 * free ex_data, then finally free the cache.
1918 * (See ticket [openssl.org #212].)
1920 if (a
->sessions
!= NULL
)
1921 SSL_CTX_flush_sessions(a
, 0);
1923 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
1924 lh_SSL_SESSION_free(a
->sessions
);
1925 X509_STORE_free(a
->cert_store
);
1926 sk_SSL_CIPHER_free(a
->cipher_list
);
1927 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
1928 ssl_cert_free(a
->cert
);
1929 sk_X509_NAME_pop_free(a
->client_CA
, X509_NAME_free
);
1930 sk_X509_pop_free(a
->extra_certs
, X509_free
);
1931 a
->comp_methods
= NULL
;
1932 #ifndef OPENSSL_NO_SRTP
1933 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
1935 #ifndef OPENSSL_NO_SRP
1936 SSL_CTX_SRP_CTX_free(a
);
1938 #ifndef OPENSSL_NO_ENGINE
1939 if (a
->client_cert_engine
)
1940 ENGINE_finish(a
->client_cert_engine
);
1943 #ifndef OPENSSL_NO_EC
1944 OPENSSL_free(a
->tlsext_ecpointformatlist
);
1945 OPENSSL_free(a
->tlsext_ellipticcurvelist
);
1947 OPENSSL_free(a
->alpn_client_proto_list
);
1952 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
1954 ctx
->default_passwd_callback
= cb
;
1957 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
1959 ctx
->default_passwd_callback_userdata
= u
;
1962 void SSL_set_default_passwd_cb(SSL
*s
, pem_password_cb
*cb
)
1964 s
->default_passwd_callback
= cb
;
1967 void SSL_set_default_passwd_cb_userdata(SSL
*s
, void *u
)
1969 s
->default_passwd_callback_userdata
= u
;
1972 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
1973 int (*cb
) (X509_STORE_CTX
*, void *),
1976 ctx
->app_verify_callback
= cb
;
1977 ctx
->app_verify_arg
= arg
;
1980 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
1981 int (*cb
) (int, X509_STORE_CTX
*))
1983 ctx
->verify_mode
= mode
;
1984 ctx
->default_verify_callback
= cb
;
1987 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
1989 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
1992 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
),
1995 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
1998 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
2000 ssl_cert_set_cert_cb(s
->cert
, cb
, arg
);
2003 void ssl_set_masks(SSL
*s
, const SSL_CIPHER
*cipher
)
2007 uint32_t *pvalid
= s
->s3
->tmp
.valid_flags
;
2008 int rsa_enc
, rsa_tmp
, rsa_sign
, dh_tmp
, dh_rsa
, dh_dsa
, dsa_sign
;
2009 int rsa_enc_export
, dh_rsa_export
, dh_dsa_export
;
2010 int rsa_tmp_export
, dh_tmp_export
, kl
;
2011 unsigned long mask_k
, mask_a
, emask_k
, emask_a
;
2012 #ifndef OPENSSL_NO_EC
2013 int have_ecc_cert
, ecdsa_ok
, ecc_pkey_size
;
2014 int have_ecdh_tmp
, ecdh_ok
;
2016 EVP_PKEY
*ecc_pkey
= NULL
;
2017 int pk_nid
= 0, md_nid
= 0;
2022 kl
= SSL_C_EXPORT_PKEYLENGTH(cipher
);
2024 #ifndef OPENSSL_NO_RSA
2025 rsa_tmp
= (c
->rsa_tmp
!= NULL
|| c
->rsa_tmp_cb
!= NULL
);
2026 rsa_tmp_export
= (c
->rsa_tmp_cb
!= NULL
||
2027 (rsa_tmp
&& RSA_size(c
->rsa_tmp
) * 8 <= kl
));
2029 rsa_tmp
= rsa_tmp_export
= 0;
2031 #ifndef OPENSSL_NO_DH
2032 dh_tmp
= (c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
|| c
->dh_tmp_auto
);
2033 dh_tmp_export
= !c
->dh_tmp_auto
&& (c
->dh_tmp_cb
!= NULL
||
2035 && DH_size(c
->dh_tmp
) * 8 <= kl
));
2037 dh_tmp
= dh_tmp_export
= 0;
2040 #ifndef OPENSSL_NO_EC
2041 have_ecdh_tmp
= (c
->ecdh_tmp
|| c
->ecdh_tmp_cb
|| c
->ecdh_tmp_auto
);
2043 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_ENC
]);
2044 rsa_enc
= pvalid
[SSL_PKEY_RSA_ENC
] & CERT_PKEY_VALID
;
2045 rsa_enc_export
= (rsa_enc
&& EVP_PKEY_size(cpk
->privatekey
) * 8 <= kl
);
2046 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_SIGN
]);
2047 rsa_sign
= pvalid
[SSL_PKEY_RSA_SIGN
] & CERT_PKEY_SIGN
;
2048 cpk
= &(c
->pkeys
[SSL_PKEY_DSA_SIGN
]);
2049 dsa_sign
= pvalid
[SSL_PKEY_DSA_SIGN
] & CERT_PKEY_SIGN
;
2050 cpk
= &(c
->pkeys
[SSL_PKEY_DH_RSA
]);
2051 dh_rsa
= pvalid
[SSL_PKEY_DH_RSA
] & CERT_PKEY_VALID
;
2052 dh_rsa_export
= (dh_rsa
&& EVP_PKEY_size(cpk
->privatekey
) * 8 <= kl
);
2053 cpk
= &(c
->pkeys
[SSL_PKEY_DH_DSA
]);
2054 dh_dsa
= pvalid
[SSL_PKEY_DH_DSA
] & CERT_PKEY_VALID
;
2055 dh_dsa_export
= (dh_dsa
&& EVP_PKEY_size(cpk
->privatekey
) * 8 <= kl
);
2056 cpk
= &(c
->pkeys
[SSL_PKEY_ECC
]);
2057 #ifndef OPENSSL_NO_EC
2058 have_ecc_cert
= pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_VALID
;
2067 "rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2068 rsa_tmp
, rsa_tmp_export
, dh_tmp
, have_ecdh_tmp
, rsa_enc
,
2069 rsa_enc_export
, rsa_sign
, dsa_sign
, dh_rsa
, dh_dsa
);
2072 cpk
= &(c
->pkeys
[SSL_PKEY_GOST01
]);
2073 if (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
) {
2074 mask_k
|= SSL_kGOST
;
2075 mask_a
|= SSL_aGOST01
;
2078 if (rsa_enc
|| (rsa_tmp
&& rsa_sign
))
2080 if (rsa_enc_export
|| (rsa_tmp_export
&& (rsa_sign
|| rsa_enc
)))
2081 emask_k
|= SSL_kRSA
;
2084 emask_k
|= SSL_kDHE
;
2092 emask_k
|= SSL_kDHr
;
2097 emask_k
|= SSL_kDHd
;
2099 if (mask_k
& (SSL_kDHr
| SSL_kDHd
))
2102 if (rsa_enc
|| rsa_sign
) {
2104 emask_a
|= SSL_aRSA
;
2109 emask_a
|= SSL_aDSS
;
2112 mask_a
|= SSL_aNULL
;
2113 emask_a
|= SSL_aNULL
;
2116 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
2117 * depending on the key usage extension.
2119 #ifndef OPENSSL_NO_EC
2120 if (have_ecc_cert
) {
2122 cpk
= &c
->pkeys
[SSL_PKEY_ECC
];
2124 ex_kusage
= X509_get_key_usage(x
);
2125 ecdh_ok
= ex_kusage
& X509v3_KU_KEY_AGREEMENT
;
2126 ecdsa_ok
= ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
;
2127 if (!(pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_SIGN
))
2129 ecc_pkey
= X509_get_pubkey(x
);
2130 ecc_pkey_size
= (ecc_pkey
!= NULL
) ? EVP_PKEY_bits(ecc_pkey
) : 0;
2131 EVP_PKEY_free(ecc_pkey
);
2132 OBJ_find_sigid_algs(X509_get_signature_nid(x
), &md_nid
, &pk_nid
);
2135 if (pk_nid
== NID_rsaEncryption
|| pk_nid
== NID_rsa
) {
2136 mask_k
|= SSL_kECDHr
;
2137 mask_a
|= SSL_aECDH
;
2138 if (ecc_pkey_size
<= 163) {
2139 emask_k
|= SSL_kECDHr
;
2140 emask_a
|= SSL_aECDH
;
2144 if (pk_nid
== NID_X9_62_id_ecPublicKey
) {
2145 mask_k
|= SSL_kECDHe
;
2146 mask_a
|= SSL_aECDH
;
2147 if (ecc_pkey_size
<= 163) {
2148 emask_k
|= SSL_kECDHe
;
2149 emask_a
|= SSL_aECDH
;
2154 mask_a
|= SSL_aECDSA
;
2155 emask_a
|= SSL_aECDSA
;
2160 #ifndef OPENSSL_NO_EC
2161 if (have_ecdh_tmp
) {
2162 mask_k
|= SSL_kECDHE
;
2163 emask_k
|= SSL_kECDHE
;
2167 #ifndef OPENSSL_NO_PSK
2170 emask_k
|= SSL_kPSK
;
2171 emask_a
|= SSL_aPSK
;
2172 if (mask_k
& SSL_kRSA
)
2173 mask_k
|= SSL_kRSAPSK
;
2174 if (mask_k
& SSL_kDHE
)
2175 mask_k
|= SSL_kDHEPSK
;
2176 if (mask_k
& SSL_kECDHE
)
2177 mask_k
|= SSL_kECDHEPSK
;
2180 s
->s3
->tmp
.mask_k
= mask_k
;
2181 s
->s3
->tmp
.mask_a
= mask_a
;
2182 s
->s3
->tmp
.export_mask_k
= emask_k
;
2183 s
->s3
->tmp
.export_mask_a
= emask_a
;
2186 #ifndef OPENSSL_NO_EC
2188 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
2190 unsigned long alg_k
, alg_a
;
2191 EVP_PKEY
*pkey
= NULL
;
2193 int md_nid
= 0, pk_nid
= 0;
2194 const SSL_CIPHER
*cs
= s
->s3
->tmp
.new_cipher
;
2195 uint32_t ex_kusage
= X509_get_key_usage(x
);
2197 alg_k
= cs
->algorithm_mkey
;
2198 alg_a
= cs
->algorithm_auth
;
2200 if (SSL_C_IS_EXPORT(cs
)) {
2201 /* ECDH key length in export ciphers must be <= 163 bits */
2202 pkey
= X509_get_pubkey(x
);
2205 keysize
= EVP_PKEY_bits(pkey
);
2206 EVP_PKEY_free(pkey
);
2211 OBJ_find_sigid_algs(X509_get_signature_nid(x
), &md_nid
, &pk_nid
);
2213 if (alg_k
& SSL_kECDHe
|| alg_k
& SSL_kECDHr
) {
2214 /* key usage, if present, must allow key agreement */
2215 if (!(ex_kusage
& X509v3_KU_KEY_AGREEMENT
)) {
2216 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2217 SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT
);
2220 if ((alg_k
& SSL_kECDHe
) && TLS1_get_version(s
) < TLS1_2_VERSION
) {
2221 /* signature alg must be ECDSA */
2222 if (pk_nid
!= NID_X9_62_id_ecPublicKey
) {
2223 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2224 SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE
);
2228 if ((alg_k
& SSL_kECDHr
) && TLS1_get_version(s
) < TLS1_2_VERSION
) {
2229 /* signature alg must be RSA */
2231 if (pk_nid
!= NID_rsaEncryption
&& pk_nid
!= NID_rsa
) {
2232 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2233 SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE
);
2238 if (alg_a
& SSL_aECDSA
) {
2239 /* key usage, if present, must allow signing */
2240 if (!(ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
)) {
2241 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2242 SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
2247 return 1; /* all checks are ok */
2252 static int ssl_get_server_cert_index(const SSL
*s
)
2255 idx
= ssl_cipher_get_cert_index(s
->s3
->tmp
.new_cipher
);
2256 if (idx
== SSL_PKEY_RSA_ENC
&& !s
->cert
->pkeys
[SSL_PKEY_RSA_ENC
].x509
)
2257 idx
= SSL_PKEY_RSA_SIGN
;
2259 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX
, ERR_R_INTERNAL_ERROR
);
2263 CERT_PKEY
*ssl_get_server_send_pkey(SSL
*s
)
2269 if (!s
->s3
|| !s
->s3
->tmp
.new_cipher
)
2271 ssl_set_masks(s
, s
->s3
->tmp
.new_cipher
);
2273 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2275 * Broken protocol test: return last used certificate: which may mismatch
2278 if (c
->cert_flags
& SSL_CERT_FLAG_BROKEN_PROTOCOL
)
2282 i
= ssl_get_server_cert_index(s
);
2284 /* This may or may not be an error. */
2289 return &c
->pkeys
[i
];
2292 EVP_PKEY
*ssl_get_sign_pkey(SSL
*s
, const SSL_CIPHER
*cipher
,
2295 unsigned long alg_a
;
2299 alg_a
= cipher
->algorithm_auth
;
2302 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2304 * Broken protocol test: use last key: which may mismatch the one
2307 if (c
->cert_flags
& SSL_CERT_FLAG_BROKEN_PROTOCOL
)
2308 idx
= c
->key
- c
->pkeys
;
2312 if ((alg_a
& SSL_aDSS
) &&
2313 (c
->pkeys
[SSL_PKEY_DSA_SIGN
].privatekey
!= NULL
))
2314 idx
= SSL_PKEY_DSA_SIGN
;
2315 else if (alg_a
& SSL_aRSA
) {
2316 if (c
->pkeys
[SSL_PKEY_RSA_SIGN
].privatekey
!= NULL
)
2317 idx
= SSL_PKEY_RSA_SIGN
;
2318 else if (c
->pkeys
[SSL_PKEY_RSA_ENC
].privatekey
!= NULL
)
2319 idx
= SSL_PKEY_RSA_ENC
;
2320 } else if ((alg_a
& SSL_aECDSA
) &&
2321 (c
->pkeys
[SSL_PKEY_ECC
].privatekey
!= NULL
))
2324 SSLerr(SSL_F_SSL_GET_SIGN_PKEY
, ERR_R_INTERNAL_ERROR
);
2328 *pmd
= s
->s3
->tmp
.md
[idx
];
2329 return c
->pkeys
[idx
].privatekey
;
2332 int ssl_get_server_cert_serverinfo(SSL
*s
, const unsigned char **serverinfo
,
2333 size_t *serverinfo_length
)
2337 *serverinfo_length
= 0;
2340 i
= ssl_get_server_cert_index(s
);
2344 if (c
->pkeys
[i
].serverinfo
== NULL
)
2347 *serverinfo
= c
->pkeys
[i
].serverinfo
;
2348 *serverinfo_length
= c
->pkeys
[i
].serverinfo_length
;
2352 void ssl_update_cache(SSL
*s
, int mode
)
2357 * If the session_id_length is 0, we are not supposed to cache it, and it
2358 * would be rather hard to do anyway :-)
2360 if (s
->session
->session_id_length
== 0)
2363 i
= s
->session_ctx
->session_cache_mode
;
2364 if ((i
& mode
) && (!s
->hit
)
2365 && ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
)
2366 || SSL_CTX_add_session(s
->session_ctx
, s
->session
))
2367 && (s
->session_ctx
->new_session_cb
!= NULL
)) {
2368 CRYPTO_add(&s
->session
->references
, 1, CRYPTO_LOCK_SSL_SESSION
);
2369 if (!s
->session_ctx
->new_session_cb(s
, s
->session
))
2370 SSL_SESSION_free(s
->session
);
2373 /* auto flush every 255 connections */
2374 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
2375 if ((((mode
& SSL_SESS_CACHE_CLIENT
)
2376 ? s
->session_ctx
->stats
.sess_connect_good
2377 : s
->session_ctx
->stats
.sess_accept_good
) & 0xff) == 0xff) {
2378 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
2383 const SSL_METHOD
*SSL_CTX_get_ssl_method(SSL_CTX
*ctx
)
2388 const SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
2393 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
2398 if (s
->method
!= meth
) {
2399 if (s
->handshake_func
!= NULL
)
2400 conn
= (s
->handshake_func
== s
->method
->ssl_connect
);
2402 if (s
->method
->version
== meth
->version
)
2405 s
->method
->ssl_free(s
);
2407 ret
= s
->method
->ssl_new(s
);
2411 s
->handshake_func
= meth
->ssl_connect
;
2413 s
->handshake_func
= meth
->ssl_accept
;
2418 int SSL_get_error(const SSL
*s
, int i
)
2425 return (SSL_ERROR_NONE
);
2428 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
2429 * where we do encode the error
2431 if ((l
= ERR_peek_error()) != 0) {
2432 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
2433 return (SSL_ERROR_SYSCALL
);
2435 return (SSL_ERROR_SSL
);
2438 if ((i
< 0) && SSL_want_read(s
)) {
2439 bio
= SSL_get_rbio(s
);
2440 if (BIO_should_read(bio
))
2441 return (SSL_ERROR_WANT_READ
);
2442 else if (BIO_should_write(bio
))
2444 * This one doesn't make too much sense ... We never try to write
2445 * to the rbio, and an application program where rbio and wbio
2446 * are separate couldn't even know what it should wait for.
2447 * However if we ever set s->rwstate incorrectly (so that we have
2448 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
2449 * wbio *are* the same, this test works around that bug; so it
2450 * might be safer to keep it.
2452 return (SSL_ERROR_WANT_WRITE
);
2453 else if (BIO_should_io_special(bio
)) {
2454 reason
= BIO_get_retry_reason(bio
);
2455 if (reason
== BIO_RR_CONNECT
)
2456 return (SSL_ERROR_WANT_CONNECT
);
2457 else if (reason
== BIO_RR_ACCEPT
)
2458 return (SSL_ERROR_WANT_ACCEPT
);
2460 return (SSL_ERROR_SYSCALL
); /* unknown */
2464 if ((i
< 0) && SSL_want_write(s
)) {
2465 bio
= SSL_get_wbio(s
);
2466 if (BIO_should_write(bio
))
2467 return (SSL_ERROR_WANT_WRITE
);
2468 else if (BIO_should_read(bio
))
2470 * See above (SSL_want_read(s) with BIO_should_write(bio))
2472 return (SSL_ERROR_WANT_READ
);
2473 else if (BIO_should_io_special(bio
)) {
2474 reason
= BIO_get_retry_reason(bio
);
2475 if (reason
== BIO_RR_CONNECT
)
2476 return (SSL_ERROR_WANT_CONNECT
);
2477 else if (reason
== BIO_RR_ACCEPT
)
2478 return (SSL_ERROR_WANT_ACCEPT
);
2480 return (SSL_ERROR_SYSCALL
);
2483 if ((i
< 0) && SSL_want_x509_lookup(s
)) {
2484 return (SSL_ERROR_WANT_X509_LOOKUP
);
2486 if ((i
< 0) && SSL_want_async(s
)) {
2487 return SSL_ERROR_WANT_ASYNC
;
2491 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
2492 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
2493 return (SSL_ERROR_ZERO_RETURN
);
2495 return (SSL_ERROR_SYSCALL
);
2498 static int ssl_do_handshake_intern(void *vargs
)
2500 struct ssl_async_args
*args
;
2503 args
= (struct ssl_async_args
*)vargs
;
2506 return s
->handshake_func(s
);
2509 int SSL_do_handshake(SSL
*s
)
2513 if (s
->handshake_func
== NULL
) {
2514 SSLerr(SSL_F_SSL_DO_HANDSHAKE
, SSL_R_CONNECTION_TYPE_NOT_SET
);
2518 s
->method
->ssl_renegotiate_check(s
);
2520 if (SSL_in_init(s
) || SSL_in_before(s
)) {
2521 if((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
2522 struct ssl_async_args args
;
2526 ret
= ssl_start_async_job(s
, &args
, ssl_do_handshake_intern
);
2528 ret
= s
->handshake_func(s
);
2534 void SSL_set_accept_state(SSL
*s
)
2538 ossl_statem_clear(s
);
2539 s
->handshake_func
= s
->method
->ssl_accept
;
2543 void SSL_set_connect_state(SSL
*s
)
2547 ossl_statem_clear(s
);
2548 s
->handshake_func
= s
->method
->ssl_connect
;
2552 int ssl_undefined_function(SSL
*s
)
2554 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2558 int ssl_undefined_void_function(void)
2560 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,
2561 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2565 int ssl_undefined_const_function(const SSL
*s
)
2570 SSL_METHOD
*ssl_bad_method(int ver
)
2572 SSLerr(SSL_F_SSL_BAD_METHOD
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2576 const char *SSL_get_version(const SSL
*s
)
2578 if (s
->version
== TLS1_2_VERSION
)
2580 else if (s
->version
== TLS1_1_VERSION
)
2582 else if (s
->version
== TLS1_VERSION
)
2584 else if (s
->version
== SSL3_VERSION
)
2586 else if (s
->version
== DTLS1_BAD_VER
)
2587 return ("DTLSv0.9");
2588 else if (s
->version
== DTLS1_VERSION
)
2590 else if (s
->version
== DTLS1_2_VERSION
)
2591 return ("DTLSv1.2");
2596 SSL
*SSL_dup(SSL
*s
)
2598 STACK_OF(X509_NAME
) *sk
;
2603 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
2606 ret
->version
= s
->version
;
2607 ret
->method
= s
->method
;
2609 if (s
->session
!= NULL
) {
2610 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2611 if (!SSL_copy_session_id(ret
, s
))
2615 * No session has been established yet, so we have to expect that
2616 * s->cert or ret->cert will be changed later -- they should not both
2617 * point to the same object, and thus we can't use
2618 * SSL_copy_session_id.
2621 ret
->method
->ssl_free(ret
);
2622 ret
->method
= s
->method
;
2623 ret
->method
->ssl_new(ret
);
2625 if (s
->cert
!= NULL
) {
2626 ssl_cert_free(ret
->cert
);
2627 ret
->cert
= ssl_cert_dup(s
->cert
);
2628 if (ret
->cert
== NULL
)
2632 if (!SSL_set_session_id_context(ret
, s
->sid_ctx
, s
->sid_ctx_length
))
2636 ret
->options
= s
->options
;
2637 ret
->mode
= s
->mode
;
2638 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
2639 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
2640 ret
->msg_callback
= s
->msg_callback
;
2641 ret
->msg_callback_arg
= s
->msg_callback_arg
;
2642 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
2643 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
2644 ret
->generate_session_id
= s
->generate_session_id
;
2646 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
2648 ret
->debug
= s
->debug
;
2650 /* copy app data, a little dangerous perhaps */
2651 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
2654 /* setup rbio, and wbio */
2655 if (s
->rbio
!= NULL
) {
2656 if (!BIO_dup_state(s
->rbio
, (char *)&ret
->rbio
))
2659 if (s
->wbio
!= NULL
) {
2660 if (s
->wbio
!= s
->rbio
) {
2661 if (!BIO_dup_state(s
->wbio
, (char *)&ret
->wbio
))
2664 ret
->wbio
= ret
->rbio
;
2666 ret
->rwstate
= s
->rwstate
;
2667 ret
->handshake_func
= s
->handshake_func
;
2668 ret
->server
= s
->server
;
2669 ret
->renegotiate
= s
->renegotiate
;
2670 ret
->new_session
= s
->new_session
;
2671 ret
->quiet_shutdown
= s
->quiet_shutdown
;
2672 ret
->shutdown
= s
->shutdown
;
2673 ret
->statem
= s
->statem
; /* SSL_dup does not really work at any state,
2675 RECORD_LAYER_dup(&ret
->rlayer
, &s
->rlayer
);
2676 ret
->init_num
= 0; /* would have to copy ret->init_buf,
2677 * ret->init_msg, ret->init_num,
2681 ret
->default_passwd_callback
= s
->default_passwd_callback
;
2682 ret
->default_passwd_callback_userdata
= s
->default_passwd_callback_userdata
;
2684 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
2686 /* dup the cipher_list and cipher_list_by_id stacks */
2687 if (s
->cipher_list
!= NULL
) {
2688 if ((ret
->cipher_list
= sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
2691 if (s
->cipher_list_by_id
!= NULL
)
2692 if ((ret
->cipher_list_by_id
= sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
2696 /* Dup the client_CA list */
2697 if (s
->client_CA
!= NULL
) {
2698 if ((sk
= sk_X509_NAME_dup(s
->client_CA
)) == NULL
)
2700 ret
->client_CA
= sk
;
2701 for (i
= 0; i
< sk_X509_NAME_num(sk
); i
++) {
2702 xn
= sk_X509_NAME_value(sk
, i
);
2703 if (sk_X509_NAME_set(sk
, i
, X509_NAME_dup(xn
)) == NULL
) {
2716 void ssl_clear_cipher_ctx(SSL
*s
)
2718 if (s
->enc_read_ctx
!= NULL
) {
2719 EVP_CIPHER_CTX_cleanup(s
->enc_read_ctx
);
2720 OPENSSL_free(s
->enc_read_ctx
);
2721 s
->enc_read_ctx
= NULL
;
2723 if (s
->enc_write_ctx
!= NULL
) {
2724 EVP_CIPHER_CTX_cleanup(s
->enc_write_ctx
);
2725 OPENSSL_free(s
->enc_write_ctx
);
2726 s
->enc_write_ctx
= NULL
;
2728 #ifndef OPENSSL_NO_COMP
2729 COMP_CTX_free(s
->expand
);
2731 COMP_CTX_free(s
->compress
);
2736 X509
*SSL_get_certificate(const SSL
*s
)
2738 if (s
->cert
!= NULL
)
2739 return (s
->cert
->key
->x509
);
2744 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
2746 if (s
->cert
!= NULL
)
2747 return (s
->cert
->key
->privatekey
);
2752 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
2754 if (ctx
->cert
!= NULL
)
2755 return ctx
->cert
->key
->x509
;
2760 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
2762 if (ctx
->cert
!= NULL
)
2763 return ctx
->cert
->key
->privatekey
;
2768 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
2770 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
2771 return (s
->session
->cipher
);
2775 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
2777 #ifndef OPENSSL_NO_COMP
2778 return s
->compress
? COMP_CTX_get_method(s
->compress
) : NULL
;
2784 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
2786 #ifndef OPENSSL_NO_COMP
2787 return s
->expand
? COMP_CTX_get_method(s
->expand
) : NULL
;
2793 int ssl_init_wbio_buffer(SSL
*s
, int push
)
2797 if (s
->bbio
== NULL
) {
2798 bbio
= BIO_new(BIO_f_buffer());
2804 if (s
->bbio
== s
->wbio
)
2805 s
->wbio
= BIO_pop(s
->wbio
);
2807 (void)BIO_reset(bbio
);
2808 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2809 if (!BIO_set_read_buffer_size(bbio
, 1)) {
2810 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
, ERR_R_BUF_LIB
);
2814 if (s
->wbio
!= bbio
)
2815 s
->wbio
= BIO_push(bbio
, s
->wbio
);
2817 if (s
->wbio
== bbio
)
2818 s
->wbio
= BIO_pop(bbio
);
2823 void ssl_free_wbio_buffer(SSL
*s
)
2825 /* callers ensure s is never null */
2826 if (s
->bbio
== NULL
)
2829 if (s
->bbio
== s
->wbio
) {
2830 /* remove buffering */
2831 s
->wbio
= BIO_pop(s
->wbio
);
2832 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids
2833 * adding one more preprocessor symbol */
2834 assert(s
->wbio
!= NULL
);
2841 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
2843 ctx
->quiet_shutdown
= mode
;
2846 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
2848 return (ctx
->quiet_shutdown
);
2851 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
2853 s
->quiet_shutdown
= mode
;
2856 int SSL_get_quiet_shutdown(const SSL
*s
)
2858 return (s
->quiet_shutdown
);
2861 void SSL_set_shutdown(SSL
*s
, int mode
)
2866 int SSL_get_shutdown(const SSL
*s
)
2868 return (s
->shutdown
);
2871 int SSL_version(const SSL
*s
)
2873 return (s
->version
);
2876 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
2881 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
2884 if (ssl
->ctx
== ctx
)
2887 ctx
= ssl
->initial_ctx
;
2888 new_cert
= ssl_cert_dup(ctx
->cert
);
2889 if (new_cert
== NULL
) {
2892 ssl_cert_free(ssl
->cert
);
2893 ssl
->cert
= new_cert
;
2896 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
2897 * so setter APIs must prevent invalid lengths from entering the system.
2899 OPENSSL_assert(ssl
->sid_ctx_length
<= sizeof(ssl
->sid_ctx
));
2902 * If the session ID context matches that of the parent SSL_CTX,
2903 * inherit it from the new SSL_CTX as well. If however the context does
2904 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
2905 * leave it unchanged.
2907 if ((ssl
->ctx
!= NULL
) &&
2908 (ssl
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
2909 (memcmp(ssl
->sid_ctx
, ssl
->ctx
->sid_ctx
, ssl
->sid_ctx_length
) == 0)) {
2910 ssl
->sid_ctx_length
= ctx
->sid_ctx_length
;
2911 memcpy(&ssl
->sid_ctx
, &ctx
->sid_ctx
, sizeof(ssl
->sid_ctx
));
2914 CRYPTO_add(&ctx
->references
, 1, CRYPTO_LOCK_SSL_CTX
);
2915 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
2921 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
2923 return (X509_STORE_set_default_paths(ctx
->cert_store
));
2926 int SSL_CTX_set_default_verify_dir(SSL_CTX
*ctx
)
2928 X509_LOOKUP
*lookup
;
2930 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_hash_dir());
2933 X509_LOOKUP_add_dir(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
2935 /* Clear any errors if the default directory does not exist */
2941 int SSL_CTX_set_default_verify_file(SSL_CTX
*ctx
)
2943 X509_LOOKUP
*lookup
;
2945 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_file());
2949 X509_LOOKUP_load_file(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
2951 /* Clear any errors if the default file does not exist */
2957 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
2960 return (X509_STORE_load_locations(ctx
->cert_store
, CAfile
, CApath
));
2963 void SSL_set_info_callback(SSL
*ssl
,
2964 void (*cb
) (const SSL
*ssl
, int type
, int val
))
2966 ssl
->info_callback
= cb
;
2970 * One compiler (Diab DCC) doesn't like argument names in returned function
2973 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
2976 return ssl
->info_callback
;
2979 void SSL_set_verify_result(SSL
*ssl
, long arg
)
2981 ssl
->verify_result
= arg
;
2984 long SSL_get_verify_result(const SSL
*ssl
)
2986 return (ssl
->verify_result
);
2989 size_t SSL_get_client_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
2992 return sizeof(ssl
->s3
->client_random
);
2993 if (outlen
> sizeof(ssl
->s3
->client_random
))
2994 outlen
= sizeof(ssl
->s3
->client_random
);
2995 memcpy(out
, ssl
->s3
->client_random
, outlen
);
2999 size_t SSL_get_server_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
3002 return sizeof(ssl
->s3
->server_random
);
3003 if (outlen
> sizeof(ssl
->s3
->server_random
))
3004 outlen
= sizeof(ssl
->s3
->server_random
);
3005 memcpy(out
, ssl
->s3
->server_random
, outlen
);
3009 size_t SSL_SESSION_get_master_key(const SSL_SESSION
*session
,
3010 unsigned char *out
, size_t outlen
)
3012 if (session
->master_key_length
< 0) {
3013 /* Should never happen */
3017 return session
->master_key_length
;
3018 if (outlen
> (size_t)session
->master_key_length
)
3019 outlen
= session
->master_key_length
;
3020 memcpy(out
, session
->master_key
, outlen
);
3024 int SSL_get_ex_new_index(long argl
, void *argp
, CRYPTO_EX_new
*new_func
,
3025 CRYPTO_EX_dup
*dup_func
, CRYPTO_EX_free
*free_func
)
3027 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL
, argl
, argp
,
3028 new_func
, dup_func
, free_func
);
3031 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
3033 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
3036 void *SSL_get_ex_data(const SSL
*s
, int idx
)
3038 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
3041 int SSL_CTX_get_ex_new_index(long argl
, void *argp
, CRYPTO_EX_new
*new_func
,
3042 CRYPTO_EX_dup
*dup_func
,
3043 CRYPTO_EX_free
*free_func
)
3045 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX
, argl
, argp
,
3046 new_func
, dup_func
, free_func
);
3049 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
3051 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
3054 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
3056 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
3064 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
3066 return (ctx
->cert_store
);
3069 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
3071 X509_STORE_free(ctx
->cert_store
);
3072 ctx
->cert_store
= store
;
3075 int SSL_want(const SSL
*s
)
3077 return (s
->rwstate
);
3081 * \brief Set the callback for generating temporary RSA keys.
3082 * \param ctx the SSL context.
3083 * \param cb the callback
3086 #ifndef OPENSSL_NO_RSA
3087 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX
*ctx
, RSA
*(*cb
) (SSL
*ssl
,
3091 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_RSA_CB
, (void (*)(void))cb
);
3094 void SSL_set_tmp_rsa_callback(SSL
*ssl
, RSA
*(*cb
) (SSL
*ssl
,
3098 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_RSA_CB
, (void (*)(void))cb
);
3104 * \brief The RSA temporary key callback function.
3105 * \param ssl the SSL session.
3106 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3107 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3108 * of the required key in bits.
3109 * \return the temporary RSA key.
3110 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3113 RSA
*cb(SSL
*ssl
, int is_export
, int keylength
)
3119 * \brief Set the callback for generating temporary DH keys.
3120 * \param ctx the SSL context.
3121 * \param dh the callback
3124 #ifndef OPENSSL_NO_DH
3125 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,
3126 DH
*(*dh
) (SSL
*ssl
, int is_export
,
3129 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
3132 void SSL_set_tmp_dh_callback(SSL
*ssl
, DH
*(*dh
) (SSL
*ssl
, int is_export
,
3135 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
3139 #ifndef OPENSSL_NO_EC
3140 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX
*ctx
,
3141 EC_KEY
*(*ecdh
) (SSL
*ssl
, int is_export
,
3144 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_ECDH_CB
,
3145 (void (*)(void))ecdh
);
3148 void SSL_set_tmp_ecdh_callback(SSL
*ssl
,
3149 EC_KEY
*(*ecdh
) (SSL
*ssl
, int is_export
,
3152 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_ECDH_CB
, (void (*)(void))ecdh
);
3156 #ifndef OPENSSL_NO_PSK
3157 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
3159 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3160 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
,
3161 SSL_R_DATA_LENGTH_TOO_LONG
);
3164 OPENSSL_free(ctx
->cert
->psk_identity_hint
);
3165 if (identity_hint
!= NULL
) {
3166 ctx
->cert
->psk_identity_hint
= BUF_strdup(identity_hint
);
3167 if (ctx
->cert
->psk_identity_hint
== NULL
)
3170 ctx
->cert
->psk_identity_hint
= NULL
;
3174 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
3179 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3180 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
3183 OPENSSL_free(s
->cert
->psk_identity_hint
);
3184 if (identity_hint
!= NULL
) {
3185 s
->cert
->psk_identity_hint
= BUF_strdup(identity_hint
);
3186 if (s
->cert
->psk_identity_hint
== NULL
)
3189 s
->cert
->psk_identity_hint
= NULL
;
3193 const char *SSL_get_psk_identity_hint(const SSL
*s
)
3195 if (s
== NULL
|| s
->session
== NULL
)
3197 return (s
->session
->psk_identity_hint
);
3200 const char *SSL_get_psk_identity(const SSL
*s
)
3202 if (s
== NULL
|| s
->session
== NULL
)
3204 return (s
->session
->psk_identity
);
3207 void SSL_set_psk_client_callback(SSL
*s
,
3208 unsigned int (*cb
) (SSL
*ssl
,
3217 s
->psk_client_callback
= cb
;
3220 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
,
3221 unsigned int (*cb
) (SSL
*ssl
,
3230 ctx
->psk_client_callback
= cb
;
3233 void SSL_set_psk_server_callback(SSL
*s
,
3234 unsigned int (*cb
) (SSL
*ssl
,
3235 const char *identity
,
3240 s
->psk_server_callback
= cb
;
3243 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
,
3244 unsigned int (*cb
) (SSL
*ssl
,
3245 const char *identity
,
3250 ctx
->psk_server_callback
= cb
;
3254 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
3255 void (*cb
) (int write_p
, int version
,
3256 int content_type
, const void *buf
,
3257 size_t len
, SSL
*ssl
, void *arg
))
3259 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
3262 void SSL_set_msg_callback(SSL
*ssl
,
3263 void (*cb
) (int write_p
, int version
,
3264 int content_type
, const void *buf
,
3265 size_t len
, SSL
*ssl
, void *arg
))
3267 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
3270 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
3271 int (*cb
) (SSL
*ssl
,
3275 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
3276 (void (*)(void))cb
);
3279 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
3280 int (*cb
) (SSL
*ssl
,
3281 int is_forward_secure
))
3283 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
3284 (void (*)(void))cb
);
3288 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3289 * vairable, freeing EVP_MD_CTX previously stored in that variable, if any.
3290 * If EVP_MD pointer is passed, initializes ctx with this md Returns newly
3294 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
3296 ssl_clear_hash_ctx(hash
);
3297 *hash
= EVP_MD_CTX_create();
3298 if (*hash
== NULL
|| (md
&& EVP_DigestInit_ex(*hash
, md
, NULL
) <= 0)) {
3299 EVP_MD_CTX_destroy(*hash
);
3306 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
3310 EVP_MD_CTX_destroy(*hash
);
3314 /* Retrieve handshake hashes */
3315 int ssl_handshake_hash(SSL
*s
, unsigned char *out
, int outlen
)
3317 unsigned char *p
= out
;
3322 EVP_MD_CTX_init(&ctx
);
3323 for (idx
= 0; ssl_get_handshake_digest(idx
, &mask
, &md
); idx
++) {
3324 if (mask
& ssl_get_algorithm2(s
)) {
3325 int hashsize
= EVP_MD_size(md
);
3326 EVP_MD_CTX
*hdgst
= s
->s3
->handshake_dgst
[idx
];
3327 if (!hdgst
|| hashsize
< 0 || hashsize
> outlen
)
3329 if (!EVP_MD_CTX_copy_ex(&ctx
, hdgst
))
3331 if (!EVP_DigestFinal_ex(&ctx
, p
, NULL
))
3339 EVP_MD_CTX_cleanup(&ctx
);
3343 void SSL_set_debug(SSL
*s
, int debug
)
3348 int SSL_cache_hit(SSL
*s
)
3353 int SSL_is_server(SSL
*s
)
3358 void SSL_set_security_level(SSL
*s
, int level
)
3360 s
->cert
->sec_level
= level
;
3363 int SSL_get_security_level(const SSL
*s
)
3365 return s
->cert
->sec_level
;
3368 void SSL_set_security_callback(SSL
*s
,
3369 int (*cb
) (SSL
*s
, SSL_CTX
*ctx
, int op
,
3370 int bits
, int nid
, void *other
,
3373 s
->cert
->sec_cb
= cb
;
3376 int (*SSL_get_security_callback(const SSL
*s
)) (SSL
*s
, SSL_CTX
*ctx
, int op
,
3378 void *other
, void *ex
) {
3379 return s
->cert
->sec_cb
;
3382 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
3384 s
->cert
->sec_ex
= ex
;
3387 void *SSL_get0_security_ex_data(const SSL
*s
)
3389 return s
->cert
->sec_ex
;
3392 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
3394 ctx
->cert
->sec_level
= level
;
3397 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
3399 return ctx
->cert
->sec_level
;
3402 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
3403 int (*cb
) (SSL
*s
, SSL_CTX
*ctx
, int op
,
3404 int bits
, int nid
, void *other
,
3407 ctx
->cert
->sec_cb
= cb
;
3410 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (SSL
*s
,
3416 return ctx
->cert
->sec_cb
;
3419 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
3421 ctx
->cert
->sec_ex
= ex
;
3424 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
3426 return ctx
->cert
->sec_ex
;
3429 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);