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 static void clear_ciphers(SSL
*s
)
191 /* clear the current cipher */
192 ssl_clear_cipher_ctx(s
);
193 ssl_clear_hash_ctx(&s
->read_hash
);
194 ssl_clear_hash_ctx(&s
->write_hash
);
197 int SSL_clear(SSL
*s
)
199 if (s
->method
== NULL
) {
200 SSLerr(SSL_F_SSL_CLEAR
, SSL_R_NO_METHOD_SPECIFIED
);
204 if (ssl_clear_bad_session(s
)) {
205 SSL_SESSION_free(s
->session
);
213 if (s
->renegotiate
) {
214 SSLerr(SSL_F_SSL_CLEAR
, ERR_R_INTERNAL_ERROR
);
220 s
->state
= SSL_ST_BEFORE
| ((s
->server
) ? SSL_ST_ACCEPT
: SSL_ST_CONNECT
);
222 s
->version
= s
->method
->version
;
223 s
->client_version
= s
->version
;
224 s
->rwstate
= SSL_NOTHING
;
226 BUF_MEM_free(s
->init_buf
);
232 * Check to see if we were changed into a different method, if so, revert
233 * back if we are not doing session-id reuse.
235 if (!s
->in_handshake
&& (s
->session
== NULL
)
236 && (s
->method
!= s
->ctx
->method
)) {
237 s
->method
->ssl_free(s
);
238 s
->method
= s
->ctx
->method
;
239 if (!s
->method
->ssl_new(s
))
242 s
->method
->ssl_clear(s
);
244 RECORD_LAYER_clear(&s
->rlayer
);
249 /** Used to change an SSL_CTXs default SSL method type */
250 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
, const SSL_METHOD
*meth
)
252 STACK_OF(SSL_CIPHER
) *sk
;
256 sk
= ssl_create_cipher_list(ctx
->method
, &(ctx
->cipher_list
),
257 &(ctx
->cipher_list_by_id
),
258 SSL_DEFAULT_CIPHER_LIST
, ctx
->cert
);
259 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
260 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
,
261 SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
267 SSL
*SSL_new(SSL_CTX
*ctx
)
272 SSLerr(SSL_F_SSL_NEW
, SSL_R_NULL_SSL_CTX
);
275 if (ctx
->method
== NULL
) {
276 SSLerr(SSL_F_SSL_NEW
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
280 s
= OPENSSL_zalloc(sizeof(*s
));
284 RECORD_LAYER_init(&s
->rlayer
, s
);
286 s
->options
= ctx
->options
;
288 s
->max_cert_list
= ctx
->max_cert_list
;
292 * Earlier library versions used to copy the pointer to the CERT, not
293 * its contents; only when setting new parameters for the per-SSL
294 * copy, ssl_cert_new would be called (and the direct reference to
295 * the per-SSL_CTX settings would be lost, but those still were
296 * indirectly accessed for various purposes, and for that reason they
297 * used to be known as s->ctx->default_cert). Now we don't look at the
298 * SSL_CTX's CERT after having duplicated it once.
300 s
->cert
= ssl_cert_dup(ctx
->cert
);
304 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
305 s
->msg_callback
= ctx
->msg_callback
;
306 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
307 s
->verify_mode
= ctx
->verify_mode
;
308 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
309 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
310 OPENSSL_assert(s
->sid_ctx_length
<= sizeof s
->sid_ctx
);
311 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
312 s
->verify_callback
= ctx
->default_verify_callback
;
313 s
->generate_session_id
= ctx
->generate_session_id
;
315 s
->param
= X509_VERIFY_PARAM_new();
318 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
319 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
320 s
->max_send_fragment
= ctx
->max_send_fragment
;
322 CRYPTO_add(&ctx
->references
, 1, CRYPTO_LOCK_SSL_CTX
);
324 s
->tlsext_debug_cb
= 0;
325 s
->tlsext_debug_arg
= NULL
;
326 s
->tlsext_ticket_expected
= 0;
327 s
->tlsext_status_type
= -1;
328 s
->tlsext_status_expected
= 0;
329 s
->tlsext_ocsp_ids
= NULL
;
330 s
->tlsext_ocsp_exts
= NULL
;
331 s
->tlsext_ocsp_resp
= NULL
;
332 s
->tlsext_ocsp_resplen
= -1;
333 CRYPTO_add(&ctx
->references
, 1, CRYPTO_LOCK_SSL_CTX
);
334 s
->initial_ctx
= ctx
;
335 # ifndef OPENSSL_NO_EC
336 if (ctx
->tlsext_ecpointformatlist
) {
337 s
->tlsext_ecpointformatlist
=
338 BUF_memdup(ctx
->tlsext_ecpointformatlist
,
339 ctx
->tlsext_ecpointformatlist_length
);
340 if (!s
->tlsext_ecpointformatlist
)
342 s
->tlsext_ecpointformatlist_length
=
343 ctx
->tlsext_ecpointformatlist_length
;
345 if (ctx
->tlsext_ellipticcurvelist
) {
346 s
->tlsext_ellipticcurvelist
=
347 BUF_memdup(ctx
->tlsext_ellipticcurvelist
,
348 ctx
->tlsext_ellipticcurvelist_length
);
349 if (!s
->tlsext_ellipticcurvelist
)
351 s
->tlsext_ellipticcurvelist_length
=
352 ctx
->tlsext_ellipticcurvelist_length
;
355 # ifndef OPENSSL_NO_NEXTPROTONEG
356 s
->next_proto_negotiated
= NULL
;
359 if (s
->ctx
->alpn_client_proto_list
) {
360 s
->alpn_client_proto_list
=
361 OPENSSL_malloc(s
->ctx
->alpn_client_proto_list_len
);
362 if (s
->alpn_client_proto_list
== NULL
)
364 memcpy(s
->alpn_client_proto_list
, s
->ctx
->alpn_client_proto_list
,
365 s
->ctx
->alpn_client_proto_list_len
);
366 s
->alpn_client_proto_list_len
= s
->ctx
->alpn_client_proto_list_len
;
369 s
->verify_result
= X509_V_OK
;
371 s
->method
= ctx
->method
;
373 if (!s
->method
->ssl_new(s
))
376 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
381 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
383 #ifndef OPENSSL_NO_PSK
384 s
->psk_client_callback
= ctx
->psk_client_callback
;
385 s
->psk_server_callback
= ctx
->psk_server_callback
;
391 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
395 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
396 unsigned int sid_ctx_len
)
398 if (sid_ctx_len
> sizeof ctx
->sid_ctx
) {
399 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,
400 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
403 ctx
->sid_ctx_length
= sid_ctx_len
;
404 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
409 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
410 unsigned int sid_ctx_len
)
412 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
413 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,
414 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
417 ssl
->sid_ctx_length
= sid_ctx_len
;
418 memcpy(ssl
->sid_ctx
, sid_ctx
, sid_ctx_len
);
423 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
425 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX
);
426 ctx
->generate_session_id
= cb
;
427 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX
);
431 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
433 CRYPTO_w_lock(CRYPTO_LOCK_SSL
);
434 ssl
->generate_session_id
= cb
;
435 CRYPTO_w_unlock(CRYPTO_LOCK_SSL
);
439 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
443 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
444 * we can "construct" a session to give us the desired check - ie. to
445 * find if there's a session in the hash table that would conflict with
446 * any new session built out of this id/id_len and the ssl_version in use
451 if (id_len
> sizeof r
.session_id
)
454 r
.ssl_version
= ssl
->version
;
455 r
.session_id_length
= id_len
;
456 memcpy(r
.session_id
, id
, id_len
);
458 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX
);
459 p
= lh_SSL_SESSION_retrieve(ssl
->ctx
->sessions
, &r
);
460 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX
);
464 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
466 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
469 int SSL_set_purpose(SSL
*s
, int purpose
)
471 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
474 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
476 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
479 int SSL_set_trust(SSL
*s
, int trust
)
481 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
484 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
486 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
489 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
491 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
494 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
499 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
504 void SSL_certs_clear(SSL
*s
)
506 ssl_cert_clear_certs(s
->cert
);
509 void SSL_free(SSL
*s
)
516 i
= CRYPTO_add(&s
->references
, -1, CRYPTO_LOCK_SSL
);
524 fprintf(stderr
, "SSL_free, bad reference count\n");
529 X509_VERIFY_PARAM_free(s
->param
);
530 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
532 if (s
->bbio
!= NULL
) {
533 /* If the buffering BIO is in place, pop it off */
534 if (s
->bbio
== s
->wbio
) {
535 s
->wbio
= BIO_pop(s
->wbio
);
540 BIO_free_all(s
->rbio
);
541 if (s
->wbio
!= s
->rbio
)
542 BIO_free_all(s
->wbio
);
544 BUF_MEM_free(s
->init_buf
);
546 /* add extra stuff */
547 sk_SSL_CIPHER_free(s
->cipher_list
);
548 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
550 /* Make the next call work :-) */
551 if (s
->session
!= NULL
) {
552 ssl_clear_bad_session(s
);
553 SSL_SESSION_free(s
->session
);
558 ssl_cert_free(s
->cert
);
559 /* Free up if allocated */
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
);
572 sk_X509_NAME_pop_free(s
->client_CA
, X509_NAME_free
);
574 if (s
->method
!= NULL
)
575 s
->method
->ssl_free(s
);
577 RECORD_LAYER_release(&s
->rlayer
);
579 SSL_CTX_free(s
->ctx
);
581 #if !defined(OPENSSL_NO_NEXTPROTONEG)
582 OPENSSL_free(s
->next_proto_negotiated
);
585 #ifndef OPENSSL_NO_SRTP
586 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
592 void SSL_set_rbio(SSL
*s
, BIO
*rbio
)
595 BIO_free_all(s
->rbio
);
599 void SSL_set_wbio(SSL
*s
, BIO
*wbio
)
602 * If the output buffering BIO is still in place, remove it
604 if (s
->bbio
!= NULL
) {
605 if (s
->wbio
== s
->bbio
) {
606 s
->wbio
= s
->wbio
->next_bio
;
607 s
->bbio
->next_bio
= NULL
;
610 if (s
->wbio
!= wbio
&& s
->rbio
!= s
->wbio
)
611 BIO_free_all(s
->wbio
);
615 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
617 SSL_set_wbio(s
, wbio
);
618 SSL_set_rbio(s
, rbio
);
621 BIO
*SSL_get_rbio(const SSL
*s
)
626 BIO
*SSL_get_wbio(const SSL
*s
)
631 int SSL_get_fd(const SSL
*s
)
633 return (SSL_get_rfd(s
));
636 int SSL_get_rfd(const SSL
*s
)
642 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
648 int SSL_get_wfd(const SSL
*s
)
654 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
660 #ifndef OPENSSL_NO_SOCK
661 int SSL_set_fd(SSL
*s
, int fd
)
666 bio
= BIO_new(BIO_s_socket());
669 SSLerr(SSL_F_SSL_SET_FD
, ERR_R_BUF_LIB
);
672 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
673 SSL_set_bio(s
, bio
, bio
);
679 int SSL_set_wfd(SSL
*s
, int fd
)
684 if ((s
->rbio
== NULL
) || (BIO_method_type(s
->rbio
) != BIO_TYPE_SOCKET
)
685 || ((int)BIO_get_fd(s
->rbio
, NULL
) != fd
)) {
686 bio
= BIO_new(BIO_s_socket());
689 SSLerr(SSL_F_SSL_SET_WFD
, ERR_R_BUF_LIB
);
692 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
693 SSL_set_bio(s
, SSL_get_rbio(s
), bio
);
695 SSL_set_bio(s
, SSL_get_rbio(s
), SSL_get_rbio(s
));
701 int SSL_set_rfd(SSL
*s
, int fd
)
706 if ((s
->wbio
== NULL
) || (BIO_method_type(s
->wbio
) != BIO_TYPE_SOCKET
)
707 || ((int)BIO_get_fd(s
->wbio
, NULL
) != fd
)) {
708 bio
= BIO_new(BIO_s_socket());
711 SSLerr(SSL_F_SSL_SET_RFD
, ERR_R_BUF_LIB
);
714 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
715 SSL_set_bio(s
, bio
, SSL_get_wbio(s
));
717 SSL_set_bio(s
, SSL_get_wbio(s
), SSL_get_wbio(s
));
724 /* return length of latest Finished message we sent, copy to 'buf' */
725 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
730 ret
= s
->s3
->tmp
.finish_md_len
;
733 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
738 /* return length of latest Finished message we expected, copy to 'buf' */
739 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
744 ret
= s
->s3
->tmp
.peer_finish_md_len
;
747 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
752 int SSL_get_verify_mode(const SSL
*s
)
754 return (s
->verify_mode
);
757 int SSL_get_verify_depth(const SSL
*s
)
759 return X509_VERIFY_PARAM_get_depth(s
->param
);
762 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
763 return (s
->verify_callback
);
766 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
768 return (ctx
->verify_mode
);
771 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
773 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
776 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
777 return (ctx
->default_verify_callback
);
780 void SSL_set_verify(SSL
*s
, int mode
,
781 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
783 s
->verify_mode
= mode
;
784 if (callback
!= NULL
)
785 s
->verify_callback
= callback
;
788 void SSL_set_verify_depth(SSL
*s
, int depth
)
790 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
793 void SSL_set_read_ahead(SSL
*s
, int yes
)
795 RECORD_LAYER_set_read_ahead(&s
->rlayer
, yes
);
798 int SSL_get_read_ahead(const SSL
*s
)
800 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
803 int SSL_pending(const SSL
*s
)
806 * SSL_pending cannot work properly if read-ahead is enabled
807 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
808 * impossible to fix since SSL_pending cannot report errors that may be
809 * observed while scanning the new data. (Note that SSL_pending() is
810 * often used as a boolean value, so we'd better not return -1.)
812 return (s
->method
->ssl_pending(s
));
815 X509
*SSL_get_peer_certificate(const SSL
*s
)
819 if ((s
== NULL
) || (s
->session
== NULL
))
822 r
= s
->session
->peer
;
832 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
836 if ((s
== NULL
) || (s
->session
== NULL
))
839 r
= s
->session
->peer_chain
;
842 * If we are a client, cert_chain includes the peer's own certificate; if
843 * we are a server, it does not.
850 * Now in theory, since the calling process own 't' it should be safe to
851 * modify. We need to be able to read f without being hassled
853 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
855 /* Do we need to to SSL locking? */
856 if (!SSL_set_session(t
, SSL_get_session(f
))) {
861 * what if we are setup as SSLv2 but want to talk SSLv3 or vice-versa
863 if (t
->method
!= f
->method
) {
864 t
->method
->ssl_free(t
); /* cleanup current */
865 t
->method
= f
->method
; /* change method */
866 t
->method
->ssl_new(t
); /* setup new */
869 CRYPTO_add(&f
->cert
->references
, 1, CRYPTO_LOCK_SSL_CERT
);
870 ssl_cert_free(t
->cert
);
872 if (!SSL_set_session_id_context(t
, f
->sid_ctx
, f
->sid_ctx_length
)) {
879 /* Fix this so it checks all the valid key/cert options */
880 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
883 (ctx
->cert
->key
->x509
== NULL
)) {
884 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,
885 SSL_R_NO_CERTIFICATE_ASSIGNED
);
888 if (ctx
->cert
->key
->privatekey
== NULL
) {
889 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,
890 SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
893 return (X509_check_private_key
894 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
));
897 /* Fix this function so that it takes an optional type parameter */
898 int SSL_check_private_key(const SSL
*ssl
)
901 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, ERR_R_PASSED_NULL_PARAMETER
);
904 if (ssl
->cert
->key
->x509
== NULL
) {
905 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
908 if (ssl
->cert
->key
->privatekey
== NULL
) {
909 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
912 return (X509_check_private_key(ssl
->cert
->key
->x509
,
913 ssl
->cert
->key
->privatekey
));
916 int SSL_accept(SSL
*s
)
918 if (s
->handshake_func
== 0)
919 /* Not properly initialized yet */
920 SSL_set_accept_state(s
);
922 return (s
->method
->ssl_accept(s
));
925 int SSL_connect(SSL
*s
)
927 if (s
->handshake_func
== 0)
928 /* Not properly initialized yet */
929 SSL_set_connect_state(s
);
931 return (s
->method
->ssl_connect(s
));
934 long SSL_get_default_timeout(const SSL
*s
)
936 return (s
->method
->get_timeout());
939 int SSL_read(SSL
*s
, void *buf
, int num
)
941 if (s
->handshake_func
== 0) {
942 SSLerr(SSL_F_SSL_READ
, SSL_R_UNINITIALIZED
);
946 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
947 s
->rwstate
= SSL_NOTHING
;
950 return (s
->method
->ssl_read(s
, buf
, num
));
953 int SSL_peek(SSL
*s
, void *buf
, int num
)
955 if (s
->handshake_func
== 0) {
956 SSLerr(SSL_F_SSL_PEEK
, SSL_R_UNINITIALIZED
);
960 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
963 return (s
->method
->ssl_peek(s
, buf
, num
));
966 int SSL_write(SSL
*s
, const void *buf
, int num
)
968 if (s
->handshake_func
== 0) {
969 SSLerr(SSL_F_SSL_WRITE
, SSL_R_UNINITIALIZED
);
973 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
974 s
->rwstate
= SSL_NOTHING
;
975 SSLerr(SSL_F_SSL_WRITE
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
978 return (s
->method
->ssl_write(s
, buf
, num
));
981 int SSL_shutdown(SSL
*s
)
984 * Note that this function behaves differently from what one might
985 * expect. Return values are 0 for no success (yet), 1 for success; but
986 * calling it once is usually not enough, even if blocking I/O is used
987 * (see ssl3_shutdown).
990 if (s
->handshake_func
== 0) {
991 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
995 if ((s
!= NULL
) && !SSL_in_init(s
))
996 return (s
->method
->ssl_shutdown(s
));
1001 int SSL_renegotiate(SSL
*s
)
1003 if (s
->renegotiate
== 0)
1008 return (s
->method
->ssl_renegotiate(s
));
1011 int SSL_renegotiate_abbreviated(SSL
*s
)
1013 if (s
->renegotiate
== 0)
1018 return (s
->method
->ssl_renegotiate(s
));
1021 int SSL_renegotiate_pending(SSL
*s
)
1024 * becomes true when negotiation is requested; false again once a
1025 * handshake has finished
1027 return (s
->renegotiate
!= 0);
1030 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
1035 case SSL_CTRL_GET_READ_AHEAD
:
1036 return (RECORD_LAYER_get_read_ahead(&s
->rlayer
));
1037 case SSL_CTRL_SET_READ_AHEAD
:
1038 l
= RECORD_LAYER_get_read_ahead(&s
->rlayer
);
1039 RECORD_LAYER_set_read_ahead(&s
->rlayer
, larg
);
1042 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1043 s
->msg_callback_arg
= parg
;
1046 case SSL_CTRL_OPTIONS
:
1047 return (s
->options
|= larg
);
1048 case SSL_CTRL_CLEAR_OPTIONS
:
1049 return (s
->options
&= ~larg
);
1051 return (s
->mode
|= larg
);
1052 case SSL_CTRL_CLEAR_MODE
:
1053 return (s
->mode
&= ~larg
);
1054 case SSL_CTRL_GET_MAX_CERT_LIST
:
1055 return (s
->max_cert_list
);
1056 case SSL_CTRL_SET_MAX_CERT_LIST
:
1057 l
= s
->max_cert_list
;
1058 s
->max_cert_list
= larg
;
1060 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
1061 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
1063 s
->max_send_fragment
= larg
;
1065 case SSL_CTRL_GET_RI_SUPPORT
:
1067 return s
->s3
->send_connection_binding
;
1070 case SSL_CTRL_CERT_FLAGS
:
1071 return (s
->cert
->cert_flags
|= larg
);
1072 case SSL_CTRL_CLEAR_CERT_FLAGS
:
1073 return (s
->cert
->cert_flags
&= ~larg
);
1075 case SSL_CTRL_GET_RAW_CIPHERLIST
:
1077 if (s
->s3
->tmp
.ciphers_raw
== NULL
)
1079 *(unsigned char **)parg
= s
->s3
->tmp
.ciphers_raw
;
1080 return (int)s
->s3
->tmp
.ciphers_rawlen
;
1082 return ssl_put_cipher_by_char(s
, NULL
, NULL
);
1083 case SSL_CTRL_GET_EXTMS_SUPPORT
:
1084 if (!s
->session
|| SSL_in_init(s
) || s
->in_handshake
)
1086 if (s
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
1091 return (s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
));
1095 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
1098 case SSL_CTRL_SET_MSG_CALLBACK
:
1099 s
->msg_callback
= (void (*)
1100 (int write_p
, int version
, int content_type
,
1101 const void *buf
, size_t len
, SSL
*ssl
,
1106 return (s
->method
->ssl_callback_ctrl(s
, cmd
, fp
));
1110 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
1112 return ctx
->sessions
;
1115 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
1118 /* For some cases with ctx == NULL perform syntax checks */
1121 #ifndef OPENSSL_NO_EC
1122 case SSL_CTRL_SET_CURVES_LIST
:
1123 return tls1_set_curves_list(NULL
, NULL
, parg
);
1125 case SSL_CTRL_SET_SIGALGS_LIST
:
1126 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
1127 return tls1_set_sigalgs_list(NULL
, parg
, 0);
1134 case SSL_CTRL_GET_READ_AHEAD
:
1135 return (ctx
->read_ahead
);
1136 case SSL_CTRL_SET_READ_AHEAD
:
1137 l
= ctx
->read_ahead
;
1138 ctx
->read_ahead
= larg
;
1141 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1142 ctx
->msg_callback_arg
= parg
;
1145 case SSL_CTRL_GET_MAX_CERT_LIST
:
1146 return (ctx
->max_cert_list
);
1147 case SSL_CTRL_SET_MAX_CERT_LIST
:
1148 l
= ctx
->max_cert_list
;
1149 ctx
->max_cert_list
= larg
;
1152 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
1153 l
= ctx
->session_cache_size
;
1154 ctx
->session_cache_size
= larg
;
1156 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
1157 return (ctx
->session_cache_size
);
1158 case SSL_CTRL_SET_SESS_CACHE_MODE
:
1159 l
= ctx
->session_cache_mode
;
1160 ctx
->session_cache_mode
= larg
;
1162 case SSL_CTRL_GET_SESS_CACHE_MODE
:
1163 return (ctx
->session_cache_mode
);
1165 case SSL_CTRL_SESS_NUMBER
:
1166 return (lh_SSL_SESSION_num_items(ctx
->sessions
));
1167 case SSL_CTRL_SESS_CONNECT
:
1168 return (ctx
->stats
.sess_connect
);
1169 case SSL_CTRL_SESS_CONNECT_GOOD
:
1170 return (ctx
->stats
.sess_connect_good
);
1171 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
1172 return (ctx
->stats
.sess_connect_renegotiate
);
1173 case SSL_CTRL_SESS_ACCEPT
:
1174 return (ctx
->stats
.sess_accept
);
1175 case SSL_CTRL_SESS_ACCEPT_GOOD
:
1176 return (ctx
->stats
.sess_accept_good
);
1177 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
1178 return (ctx
->stats
.sess_accept_renegotiate
);
1179 case SSL_CTRL_SESS_HIT
:
1180 return (ctx
->stats
.sess_hit
);
1181 case SSL_CTRL_SESS_CB_HIT
:
1182 return (ctx
->stats
.sess_cb_hit
);
1183 case SSL_CTRL_SESS_MISSES
:
1184 return (ctx
->stats
.sess_miss
);
1185 case SSL_CTRL_SESS_TIMEOUTS
:
1186 return (ctx
->stats
.sess_timeout
);
1187 case SSL_CTRL_SESS_CACHE_FULL
:
1188 return (ctx
->stats
.sess_cache_full
);
1189 case SSL_CTRL_OPTIONS
:
1190 return (ctx
->options
|= larg
);
1191 case SSL_CTRL_CLEAR_OPTIONS
:
1192 return (ctx
->options
&= ~larg
);
1194 return (ctx
->mode
|= larg
);
1195 case SSL_CTRL_CLEAR_MODE
:
1196 return (ctx
->mode
&= ~larg
);
1197 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
1198 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
1200 ctx
->max_send_fragment
= larg
;
1202 case SSL_CTRL_CERT_FLAGS
:
1203 return (ctx
->cert
->cert_flags
|= larg
);
1204 case SSL_CTRL_CLEAR_CERT_FLAGS
:
1205 return (ctx
->cert
->cert_flags
&= ~larg
);
1207 return (ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
));
1211 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
1214 case SSL_CTRL_SET_MSG_CALLBACK
:
1215 ctx
->msg_callback
= (void (*)
1216 (int write_p
, int version
, int content_type
,
1217 const void *buf
, size_t len
, SSL
*ssl
,
1222 return (ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
));
1226 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
1234 return ((l
> 0) ? 1 : -1);
1237 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
1238 const SSL_CIPHER
*const *bp
)
1242 l
= (*ap
)->id
- (*bp
)->id
;
1246 return ((l
> 0) ? 1 : -1);
1249 /** return a STACK of the ciphers available for the SSL and in order of
1251 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
1254 if (s
->cipher_list
!= NULL
) {
1255 return (s
->cipher_list
);
1256 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
1257 return (s
->ctx
->cipher_list
);
1263 STACK_OF(SSL_CIPHER
) *SSL_get_client_ciphers(const SSL
*s
)
1265 if ((s
== NULL
) || (s
->session
== NULL
) || !s
->server
)
1267 return s
->session
->ciphers
;
1270 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
1272 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
1274 ciphers
= SSL_get_ciphers(s
);
1277 ssl_set_client_disabled(s
);
1278 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
1279 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
1280 if (!ssl_cipher_disabled(s
, c
, SSL_SECOP_CIPHER_SUPPORTED
)) {
1282 sk
= sk_SSL_CIPHER_new_null();
1285 if (!sk_SSL_CIPHER_push(sk
, c
)) {
1286 sk_SSL_CIPHER_free(sk
);
1294 /** return a STACK of the ciphers available for the SSL and in order of
1296 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
1299 if (s
->cipher_list_by_id
!= NULL
) {
1300 return (s
->cipher_list_by_id
);
1301 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list_by_id
!= NULL
)) {
1302 return (s
->ctx
->cipher_list_by_id
);
1308 /** The old interface to get the same thing as SSL_get_ciphers() */
1309 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
1312 STACK_OF(SSL_CIPHER
) *sk
;
1316 sk
= SSL_get_ciphers(s
);
1317 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
1319 c
= sk_SSL_CIPHER_value(sk
, n
);
1325 /** specify the ciphers to be used by default by the SSL_CTX */
1326 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
1328 STACK_OF(SSL_CIPHER
) *sk
;
1330 sk
= ssl_create_cipher_list(ctx
->method
, &ctx
->cipher_list
,
1331 &ctx
->cipher_list_by_id
, str
, ctx
->cert
);
1333 * ssl_create_cipher_list may return an empty stack if it was unable to
1334 * find a cipher matching the given rule string (for example if the rule
1335 * string specifies a cipher which has been disabled). This is not an
1336 * error as far as ssl_create_cipher_list is concerned, and hence
1337 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
1341 else if (sk_SSL_CIPHER_num(sk
) == 0) {
1342 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
1348 /** specify the ciphers to be used by the SSL */
1349 int SSL_set_cipher_list(SSL
*s
, const char *str
)
1351 STACK_OF(SSL_CIPHER
) *sk
;
1353 sk
= ssl_create_cipher_list(s
->ctx
->method
, &s
->cipher_list
,
1354 &s
->cipher_list_by_id
, str
, s
->cert
);
1355 /* see comment in SSL_CTX_set_cipher_list */
1358 else if (sk_SSL_CIPHER_num(sk
) == 0) {
1359 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
1365 /* works well for SSLv2, not so good for SSLv3 */
1366 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int len
)
1369 STACK_OF(SSL_CIPHER
) *sk
;
1373 if ((s
->session
== NULL
) || (s
->session
->ciphers
== NULL
) || (len
< 2))
1377 sk
= s
->session
->ciphers
;
1379 if (sk_SSL_CIPHER_num(sk
) == 0)
1382 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); i
++) {
1385 c
= sk_SSL_CIPHER_value(sk
, i
);
1386 n
= strlen(c
->name
);
1402 /** return a servername extension value if provided in Client Hello, or NULL.
1403 * So far, only host_name types are defined (RFC 3546).
1406 const char *SSL_get_servername(const SSL
*s
, const int type
)
1408 if (type
!= TLSEXT_NAMETYPE_host_name
)
1411 return s
->session
&& !s
->tlsext_hostname
?
1412 s
->session
->tlsext_hostname
: s
->tlsext_hostname
;
1415 int SSL_get_servername_type(const SSL
*s
)
1418 && (!s
->tlsext_hostname
? s
->session
->
1419 tlsext_hostname
: s
->tlsext_hostname
))
1420 return TLSEXT_NAMETYPE_host_name
;
1425 * SSL_select_next_proto implements the standard protocol selection. It is
1426 * expected that this function is called from the callback set by
1427 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
1428 * vector of 8-bit, length prefixed byte strings. The length byte itself is
1429 * not included in the length. A byte string of length 0 is invalid. No byte
1430 * string may be truncated. The current, but experimental algorithm for
1431 * selecting the protocol is: 1) If the server doesn't support NPN then this
1432 * is indicated to the callback. In this case, the client application has to
1433 * abort the connection or have a default application level protocol. 2) If
1434 * the server supports NPN, but advertises an empty list then the client
1435 * selects the first protcol in its list, but indicates via the API that this
1436 * fallback case was enacted. 3) Otherwise, the client finds the first
1437 * protocol in the server's list that it supports and selects this protocol.
1438 * This is because it's assumed that the server has better information about
1439 * which protocol a client should use. 4) If the client doesn't support any
1440 * of the server's advertised protocols, then this is treated the same as
1441 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
1442 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1444 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
1445 const unsigned char *server
,
1446 unsigned int server_len
,
1447 const unsigned char *client
,
1448 unsigned int client_len
)
1451 const unsigned char *result
;
1452 int status
= OPENSSL_NPN_UNSUPPORTED
;
1455 * For each protocol in server preference order, see if we support it.
1457 for (i
= 0; i
< server_len
;) {
1458 for (j
= 0; j
< client_len
;) {
1459 if (server
[i
] == client
[j
] &&
1460 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
1461 /* We found a match */
1462 result
= &server
[i
];
1463 status
= OPENSSL_NPN_NEGOTIATED
;
1473 /* There's no overlap between our protocols and the server's list. */
1475 status
= OPENSSL_NPN_NO_OVERLAP
;
1478 *out
= (unsigned char *)result
+ 1;
1479 *outlen
= result
[0];
1483 #ifndef OPENSSL_NO_NEXTPROTONEG
1485 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
1486 * client's requested protocol for this connection and returns 0. If the
1487 * client didn't request any protocol, then *data is set to NULL. Note that
1488 * the client can request any protocol it chooses. The value returned from
1489 * this function need not be a member of the list of supported protocols
1490 * provided by the callback.
1492 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
1495 *data
= s
->next_proto_negotiated
;
1499 *len
= s
->next_proto_negotiated_len
;
1504 * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when
1505 * a TLS server needs a list of supported protocols for Next Protocol
1506 * Negotiation. The returned list must be in wire format. The list is
1507 * returned by setting |out| to point to it and |outlen| to its length. This
1508 * memory will not be modified, but one should assume that the SSL* keeps a
1509 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
1510 * wishes to advertise. Otherwise, no such extension will be included in the
1513 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX
*ctx
,
1514 int (*cb
) (SSL
*ssl
,
1517 unsigned int *outlen
,
1518 void *arg
), void *arg
)
1520 ctx
->next_protos_advertised_cb
= cb
;
1521 ctx
->next_protos_advertised_cb_arg
= arg
;
1525 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1526 * client needs to select a protocol from the server's provided list. |out|
1527 * must be set to point to the selected protocol (which may be within |in|).
1528 * The length of the protocol name must be written into |outlen|. The
1529 * server's advertised protocols are provided in |in| and |inlen|. The
1530 * callback can assume that |in| is syntactically valid. The client must
1531 * select a protocol. It is fatal to the connection if this callback returns
1532 * a value other than SSL_TLSEXT_ERR_OK.
1534 void SSL_CTX_set_next_proto_select_cb(SSL_CTX
*ctx
,
1535 int (*cb
) (SSL
*s
, unsigned char **out
,
1536 unsigned char *outlen
,
1537 const unsigned char *in
,
1539 void *arg
), void *arg
)
1541 ctx
->next_proto_select_cb
= cb
;
1542 ctx
->next_proto_select_cb_arg
= arg
;
1547 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
1548 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1549 * length-prefixed strings). Returns 0 on success.
1551 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
1552 unsigned protos_len
)
1554 OPENSSL_free(ctx
->alpn_client_proto_list
);
1555 ctx
->alpn_client_proto_list
= OPENSSL_malloc(protos_len
);
1556 if (!ctx
->alpn_client_proto_list
)
1558 memcpy(ctx
->alpn_client_proto_list
, protos
, protos_len
);
1559 ctx
->alpn_client_proto_list_len
= protos_len
;
1565 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
1566 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1567 * length-prefixed strings). Returns 0 on success.
1569 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
1570 unsigned protos_len
)
1572 OPENSSL_free(ssl
->alpn_client_proto_list
);
1573 ssl
->alpn_client_proto_list
= OPENSSL_malloc(protos_len
);
1574 if (!ssl
->alpn_client_proto_list
)
1576 memcpy(ssl
->alpn_client_proto_list
, protos
, protos_len
);
1577 ssl
->alpn_client_proto_list_len
= protos_len
;
1583 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
1584 * called during ClientHello processing in order to select an ALPN protocol
1585 * from the client's list of offered protocols.
1587 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
1588 int (*cb
) (SSL
*ssl
,
1589 const unsigned char **out
,
1590 unsigned char *outlen
,
1591 const unsigned char *in
,
1593 void *arg
), void *arg
)
1595 ctx
->alpn_select_cb
= cb
;
1596 ctx
->alpn_select_cb_arg
= arg
;
1600 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from
1601 * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name
1602 * (not including the leading length-prefix byte). If the server didn't
1603 * respond with a negotiated protocol then |*len| will be zero.
1605 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
1610 *data
= ssl
->s3
->alpn_selected
;
1614 *len
= ssl
->s3
->alpn_selected_len
;
1618 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
1619 const char *label
, size_t llen
,
1620 const unsigned char *p
, size_t plen
,
1623 if (s
->version
< TLS1_VERSION
)
1626 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
1631 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
1636 ((unsigned int)a
->session_id
[0]) |
1637 ((unsigned int)a
->session_id
[1] << 8L) |
1638 ((unsigned long)a
->session_id
[2] << 16L) |
1639 ((unsigned long)a
->session_id
[3] << 24L);
1644 * NB: If this function (or indeed the hash function which uses a sort of
1645 * coarser function than this one) is changed, ensure
1646 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
1647 * being able to construct an SSL_SESSION that will collide with any existing
1648 * session with a matching session ID.
1650 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
1652 if (a
->ssl_version
!= b
->ssl_version
)
1654 if (a
->session_id_length
!= b
->session_id_length
)
1656 return (memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
));
1660 * These wrapper functions should remain rather than redeclaring
1661 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1662 * variable. The reason is that the functions aren't static, they're exposed
1665 static IMPLEMENT_LHASH_HASH_FN(ssl_session
, SSL_SESSION
)
1666 static IMPLEMENT_LHASH_COMP_FN(ssl_session
, SSL_SESSION
)
1668 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
1670 SSL_CTX
*ret
= NULL
;
1673 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_NULL_SSL_METHOD_PASSED
);
1677 if (FIPS_mode() && (meth
->version
< TLS1_VERSION
)) {
1678 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE
);
1682 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
1683 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
1686 ret
= OPENSSL_zalloc(sizeof(*ret
));
1691 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
1692 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
1693 /* We take the system default. */
1694 ret
->session_timeout
= meth
->get_timeout();
1695 ret
->references
= 1;
1696 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
1697 ret
->verify_mode
= SSL_VERIFY_NONE
;
1698 if ((ret
->cert
= ssl_cert_new()) == NULL
)
1701 ret
->sessions
= lh_SSL_SESSION_new();
1702 if (ret
->sessions
== NULL
)
1704 ret
->cert_store
= X509_STORE_new();
1705 if (ret
->cert_store
== NULL
)
1708 if (!ssl_create_cipher_list(ret
->method
,
1709 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
1710 SSL_DEFAULT_CIPHER_LIST
, ret
->cert
)
1711 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
1712 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
1716 ret
->param
= X509_VERIFY_PARAM_new();
1720 if ((ret
->md5
= EVP_get_digestbyname("ssl3-md5")) == NULL
) {
1721 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
1724 if ((ret
->sha1
= EVP_get_digestbyname("ssl3-sha1")) == NULL
) {
1725 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
1729 if ((ret
->client_CA
= sk_X509_NAME_new_null()) == NULL
)
1732 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
);
1734 /* No compression for DTLS */
1735 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
1736 ret
->comp_methods
= SSL_COMP_get_compression_methods();
1738 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
1740 /* Setup RFC4507 ticket keys */
1741 if ((RAND_bytes(ret
->tlsext_tick_key_name
, 16) <= 0)
1742 || (RAND_bytes(ret
->tlsext_tick_hmac_key
, 16) <= 0)
1743 || (RAND_bytes(ret
->tlsext_tick_aes_key
, 16) <= 0))
1744 ret
->options
|= SSL_OP_NO_TICKET
;
1746 #ifndef OPENSSL_NO_SRP
1747 if (!SSL_CTX_SRP_CTX_init(ret
))
1750 #ifndef OPENSSL_NO_ENGINE
1751 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1752 # define eng_strx(x) #x
1753 # define eng_str(x) eng_strx(x)
1754 /* Use specific client engine automatically... ignore errors */
1757 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
1760 ENGINE_load_builtin_engines();
1761 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
1763 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
1769 * Default is to connect to non-RI servers. When RI is more widely
1770 * deployed might change this.
1772 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
1776 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
1782 void SSL_CTX_free(SSL_CTX
*a
)
1789 i
= CRYPTO_add(&a
->references
, -1, CRYPTO_LOCK_SSL_CTX
);
1791 REF_PRINT("SSL_CTX", a
);
1797 fprintf(stderr
, "SSL_CTX_free, bad reference count\n");
1802 X509_VERIFY_PARAM_free(a
->param
);
1805 * Free internal session cache. However: the remove_cb() may reference
1806 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1807 * after the sessions were flushed.
1808 * As the ex_data handling routines might also touch the session cache,
1809 * the most secure solution seems to be: empty (flush) the cache, then
1810 * free ex_data, then finally free the cache.
1811 * (See ticket [openssl.org #212].)
1813 if (a
->sessions
!= NULL
)
1814 SSL_CTX_flush_sessions(a
, 0);
1816 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
1817 lh_SSL_SESSION_free(a
->sessions
);
1818 X509_STORE_free(a
->cert_store
);
1819 sk_SSL_CIPHER_free(a
->cipher_list
);
1820 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
1821 ssl_cert_free(a
->cert
);
1822 sk_X509_NAME_pop_free(a
->client_CA
, X509_NAME_free
);
1823 sk_X509_pop_free(a
->extra_certs
, X509_free
);
1824 a
->comp_methods
= NULL
;
1825 #ifndef OPENSSL_NO_SRTP
1826 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
1828 #ifndef OPENSSL_NO_SRP
1829 SSL_CTX_SRP_CTX_free(a
);
1831 #ifndef OPENSSL_NO_ENGINE
1832 if (a
->client_cert_engine
)
1833 ENGINE_finish(a
->client_cert_engine
);
1836 #ifndef OPENSSL_NO_EC
1837 OPENSSL_free(a
->tlsext_ecpointformatlist
);
1838 OPENSSL_free(a
->tlsext_ellipticcurvelist
);
1840 OPENSSL_free(a
->alpn_client_proto_list
);
1845 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
1847 ctx
->default_passwd_callback
= cb
;
1850 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
1852 ctx
->default_passwd_callback_userdata
= u
;
1855 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
1856 int (*cb
) (X509_STORE_CTX
*, void *),
1859 ctx
->app_verify_callback
= cb
;
1860 ctx
->app_verify_arg
= arg
;
1863 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
1864 int (*cb
) (int, X509_STORE_CTX
*))
1866 ctx
->verify_mode
= mode
;
1867 ctx
->default_verify_callback
= cb
;
1870 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
1872 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
1875 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
),
1878 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
1881 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
1883 ssl_cert_set_cert_cb(s
->cert
, cb
, arg
);
1886 void ssl_set_masks(SSL
*s
, const SSL_CIPHER
*cipher
)
1890 uint32_t *pvalid
= s
->s3
->tmp
.valid_flags
;
1891 int rsa_enc
, rsa_tmp
, rsa_sign
, dh_tmp
, dh_rsa
, dh_dsa
, dsa_sign
;
1892 int rsa_enc_export
, dh_rsa_export
, dh_dsa_export
;
1893 int rsa_tmp_export
, dh_tmp_export
, kl
;
1894 unsigned long mask_k
, mask_a
, emask_k
, emask_a
;
1895 #ifndef OPENSSL_NO_EC
1896 int have_ecc_cert
, ecdsa_ok
, ecc_pkey_size
;
1897 int have_ecdh_tmp
, ecdh_ok
;
1899 EVP_PKEY
*ecc_pkey
= NULL
;
1900 int pk_nid
= 0, md_nid
= 0;
1905 kl
= SSL_C_EXPORT_PKEYLENGTH(cipher
);
1907 #ifndef OPENSSL_NO_RSA
1908 rsa_tmp
= (c
->rsa_tmp
!= NULL
|| c
->rsa_tmp_cb
!= NULL
);
1909 rsa_tmp_export
= (c
->rsa_tmp_cb
!= NULL
||
1910 (rsa_tmp
&& RSA_size(c
->rsa_tmp
) * 8 <= kl
));
1912 rsa_tmp
= rsa_tmp_export
= 0;
1914 #ifndef OPENSSL_NO_DH
1915 dh_tmp
= (c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
|| c
->dh_tmp_auto
);
1916 dh_tmp_export
= !c
->dh_tmp_auto
&& (c
->dh_tmp_cb
!= NULL
||
1918 && DH_size(c
->dh_tmp
) * 8 <= kl
));
1920 dh_tmp
= dh_tmp_export
= 0;
1923 #ifndef OPENSSL_NO_EC
1924 have_ecdh_tmp
= (c
->ecdh_tmp
|| c
->ecdh_tmp_cb
|| c
->ecdh_tmp_auto
);
1926 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_ENC
]);
1927 rsa_enc
= pvalid
[SSL_PKEY_RSA_ENC
] & CERT_PKEY_VALID
;
1928 rsa_enc_export
= (rsa_enc
&& EVP_PKEY_size(cpk
->privatekey
) * 8 <= kl
);
1929 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_SIGN
]);
1930 rsa_sign
= pvalid
[SSL_PKEY_RSA_SIGN
] & CERT_PKEY_SIGN
;
1931 cpk
= &(c
->pkeys
[SSL_PKEY_DSA_SIGN
]);
1932 dsa_sign
= pvalid
[SSL_PKEY_DSA_SIGN
] & CERT_PKEY_SIGN
;
1933 cpk
= &(c
->pkeys
[SSL_PKEY_DH_RSA
]);
1934 dh_rsa
= pvalid
[SSL_PKEY_DH_RSA
] & CERT_PKEY_VALID
;
1935 dh_rsa_export
= (dh_rsa
&& EVP_PKEY_size(cpk
->privatekey
) * 8 <= kl
);
1936 cpk
= &(c
->pkeys
[SSL_PKEY_DH_DSA
]);
1937 dh_dsa
= pvalid
[SSL_PKEY_DH_DSA
] & CERT_PKEY_VALID
;
1938 dh_dsa_export
= (dh_dsa
&& EVP_PKEY_size(cpk
->privatekey
) * 8 <= kl
);
1939 cpk
= &(c
->pkeys
[SSL_PKEY_ECC
]);
1940 #ifndef OPENSSL_NO_EC
1941 have_ecc_cert
= pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_VALID
;
1950 "rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1951 rsa_tmp
, rsa_tmp_export
, dh_tmp
, have_ecdh_tmp
, rsa_enc
,
1952 rsa_enc_export
, rsa_sign
, dsa_sign
, dh_rsa
, dh_dsa
);
1955 cpk
= &(c
->pkeys
[SSL_PKEY_GOST01
]);
1956 if (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
) {
1957 mask_k
|= SSL_kGOST
;
1958 mask_a
|= SSL_aGOST01
;
1961 if (rsa_enc
|| (rsa_tmp
&& rsa_sign
))
1963 if (rsa_enc_export
|| (rsa_tmp_export
&& (rsa_sign
|| rsa_enc
)))
1964 emask_k
|= SSL_kRSA
;
1967 emask_k
|= SSL_kDHE
;
1975 emask_k
|= SSL_kDHr
;
1980 emask_k
|= SSL_kDHd
;
1982 if (mask_k
& (SSL_kDHr
| SSL_kDHd
))
1985 if (rsa_enc
|| rsa_sign
) {
1987 emask_a
|= SSL_aRSA
;
1992 emask_a
|= SSL_aDSS
;
1995 mask_a
|= SSL_aNULL
;
1996 emask_a
|= SSL_aNULL
;
1999 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
2000 * depending on the key usage extension.
2002 #ifndef OPENSSL_NO_EC
2003 if (have_ecc_cert
) {
2005 cpk
= &c
->pkeys
[SSL_PKEY_ECC
];
2007 ex_kusage
= X509_get_key_usage(x
);
2008 ecdh_ok
= ex_kusage
& X509v3_KU_KEY_AGREEMENT
;
2009 ecdsa_ok
= ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
;
2010 if (!(pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_SIGN
))
2012 ecc_pkey
= X509_get_pubkey(x
);
2013 ecc_pkey_size
= (ecc_pkey
!= NULL
) ? EVP_PKEY_bits(ecc_pkey
) : 0;
2014 EVP_PKEY_free(ecc_pkey
);
2015 OBJ_find_sigid_algs(X509_get_signature_nid(x
), &md_nid
, &pk_nid
);
2018 if (pk_nid
== NID_rsaEncryption
|| pk_nid
== NID_rsa
) {
2019 mask_k
|= SSL_kECDHr
;
2020 mask_a
|= SSL_aECDH
;
2021 if (ecc_pkey_size
<= 163) {
2022 emask_k
|= SSL_kECDHr
;
2023 emask_a
|= SSL_aECDH
;
2027 if (pk_nid
== NID_X9_62_id_ecPublicKey
) {
2028 mask_k
|= SSL_kECDHe
;
2029 mask_a
|= SSL_aECDH
;
2030 if (ecc_pkey_size
<= 163) {
2031 emask_k
|= SSL_kECDHe
;
2032 emask_a
|= SSL_aECDH
;
2037 mask_a
|= SSL_aECDSA
;
2038 emask_a
|= SSL_aECDSA
;
2043 #ifndef OPENSSL_NO_EC
2044 if (have_ecdh_tmp
) {
2045 mask_k
|= SSL_kECDHE
;
2046 emask_k
|= SSL_kECDHE
;
2050 #ifndef OPENSSL_NO_PSK
2053 emask_k
|= SSL_kPSK
;
2054 emask_a
|= SSL_aPSK
;
2055 if (mask_k
& SSL_kRSA
)
2056 mask_k
|= SSL_kRSAPSK
;
2057 if (mask_k
& SSL_kDHE
)
2058 mask_k
|= SSL_kDHEPSK
;
2059 if (mask_k
& SSL_kECDHE
)
2060 mask_k
|= SSL_kECDHEPSK
;
2063 s
->s3
->tmp
.mask_k
= mask_k
;
2064 s
->s3
->tmp
.mask_a
= mask_a
;
2065 s
->s3
->tmp
.export_mask_k
= emask_k
;
2066 s
->s3
->tmp
.export_mask_a
= emask_a
;
2069 #ifndef OPENSSL_NO_EC
2071 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
2073 unsigned long alg_k
, alg_a
;
2074 EVP_PKEY
*pkey
= NULL
;
2076 int md_nid
= 0, pk_nid
= 0;
2077 const SSL_CIPHER
*cs
= s
->s3
->tmp
.new_cipher
;
2078 uint32_t ex_kusage
= X509_get_key_usage(x
);
2080 alg_k
= cs
->algorithm_mkey
;
2081 alg_a
= cs
->algorithm_auth
;
2083 if (SSL_C_IS_EXPORT(cs
)) {
2084 /* ECDH key length in export ciphers must be <= 163 bits */
2085 pkey
= X509_get_pubkey(x
);
2088 keysize
= EVP_PKEY_bits(pkey
);
2089 EVP_PKEY_free(pkey
);
2094 OBJ_find_sigid_algs(X509_get_signature_nid(x
), &md_nid
, &pk_nid
);
2096 if (alg_k
& SSL_kECDHe
|| alg_k
& SSL_kECDHr
) {
2097 /* key usage, if present, must allow key agreement */
2098 if (!(ex_kusage
& X509v3_KU_KEY_AGREEMENT
)) {
2099 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2100 SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT
);
2103 if ((alg_k
& SSL_kECDHe
) && TLS1_get_version(s
) < TLS1_2_VERSION
) {
2104 /* signature alg must be ECDSA */
2105 if (pk_nid
!= NID_X9_62_id_ecPublicKey
) {
2106 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2107 SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE
);
2111 if ((alg_k
& SSL_kECDHr
) && TLS1_get_version(s
) < TLS1_2_VERSION
) {
2112 /* signature alg must be RSA */
2114 if (pk_nid
!= NID_rsaEncryption
&& pk_nid
!= NID_rsa
) {
2115 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2116 SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE
);
2121 if (alg_a
& SSL_aECDSA
) {
2122 /* key usage, if present, must allow signing */
2123 if (!(ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
)) {
2124 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2125 SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
2130 return 1; /* all checks are ok */
2135 static int ssl_get_server_cert_index(const SSL
*s
)
2138 idx
= ssl_cipher_get_cert_index(s
->s3
->tmp
.new_cipher
);
2139 if (idx
== SSL_PKEY_RSA_ENC
&& !s
->cert
->pkeys
[SSL_PKEY_RSA_ENC
].x509
)
2140 idx
= SSL_PKEY_RSA_SIGN
;
2142 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX
, ERR_R_INTERNAL_ERROR
);
2146 CERT_PKEY
*ssl_get_server_send_pkey(SSL
*s
)
2152 if (!s
->s3
|| !s
->s3
->tmp
.new_cipher
)
2154 ssl_set_masks(s
, s
->s3
->tmp
.new_cipher
);
2156 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2158 * Broken protocol test: return last used certificate: which may mismatch
2161 if (c
->cert_flags
& SSL_CERT_FLAG_BROKEN_PROTOCOL
)
2165 i
= ssl_get_server_cert_index(s
);
2167 /* This may or may not be an error. */
2172 return &c
->pkeys
[i
];
2175 EVP_PKEY
*ssl_get_sign_pkey(SSL
*s
, const SSL_CIPHER
*cipher
,
2178 unsigned long alg_a
;
2182 alg_a
= cipher
->algorithm_auth
;
2185 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2187 * Broken protocol test: use last key: which may mismatch the one
2190 if (c
->cert_flags
& SSL_CERT_FLAG_BROKEN_PROTOCOL
)
2191 idx
= c
->key
- c
->pkeys
;
2195 if ((alg_a
& SSL_aDSS
) &&
2196 (c
->pkeys
[SSL_PKEY_DSA_SIGN
].privatekey
!= NULL
))
2197 idx
= SSL_PKEY_DSA_SIGN
;
2198 else if (alg_a
& SSL_aRSA
) {
2199 if (c
->pkeys
[SSL_PKEY_RSA_SIGN
].privatekey
!= NULL
)
2200 idx
= SSL_PKEY_RSA_SIGN
;
2201 else if (c
->pkeys
[SSL_PKEY_RSA_ENC
].privatekey
!= NULL
)
2202 idx
= SSL_PKEY_RSA_ENC
;
2203 } else if ((alg_a
& SSL_aECDSA
) &&
2204 (c
->pkeys
[SSL_PKEY_ECC
].privatekey
!= NULL
))
2207 SSLerr(SSL_F_SSL_GET_SIGN_PKEY
, ERR_R_INTERNAL_ERROR
);
2211 *pmd
= s
->s3
->tmp
.md
[idx
];
2212 return c
->pkeys
[idx
].privatekey
;
2215 int ssl_get_server_cert_serverinfo(SSL
*s
, const unsigned char **serverinfo
,
2216 size_t *serverinfo_length
)
2220 *serverinfo_length
= 0;
2223 i
= ssl_get_server_cert_index(s
);
2227 if (c
->pkeys
[i
].serverinfo
== NULL
)
2230 *serverinfo
= c
->pkeys
[i
].serverinfo
;
2231 *serverinfo_length
= c
->pkeys
[i
].serverinfo_length
;
2235 void ssl_update_cache(SSL
*s
, int mode
)
2240 * If the session_id_length is 0, we are not supposed to cache it, and it
2241 * would be rather hard to do anyway :-)
2243 if (s
->session
->session_id_length
== 0)
2246 i
= s
->session_ctx
->session_cache_mode
;
2247 if ((i
& mode
) && (!s
->hit
)
2248 && ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
)
2249 || SSL_CTX_add_session(s
->session_ctx
, s
->session
))
2250 && (s
->session_ctx
->new_session_cb
!= NULL
)) {
2251 CRYPTO_add(&s
->session
->references
, 1, CRYPTO_LOCK_SSL_SESSION
);
2252 if (!s
->session_ctx
->new_session_cb(s
, s
->session
))
2253 SSL_SESSION_free(s
->session
);
2256 /* auto flush every 255 connections */
2257 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
2258 if ((((mode
& SSL_SESS_CACHE_CLIENT
)
2259 ? s
->session_ctx
->stats
.sess_connect_good
2260 : s
->session_ctx
->stats
.sess_accept_good
) & 0xff) == 0xff) {
2261 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
2266 const SSL_METHOD
*SSL_CTX_get_ssl_method(SSL_CTX
*ctx
)
2271 const SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
2276 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
2281 if (s
->method
!= meth
) {
2282 if (s
->handshake_func
!= NULL
)
2283 conn
= (s
->handshake_func
== s
->method
->ssl_connect
);
2285 if (s
->method
->version
== meth
->version
)
2288 s
->method
->ssl_free(s
);
2290 ret
= s
->method
->ssl_new(s
);
2294 s
->handshake_func
= meth
->ssl_connect
;
2296 s
->handshake_func
= meth
->ssl_accept
;
2301 int SSL_get_error(const SSL
*s
, int i
)
2308 return (SSL_ERROR_NONE
);
2311 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
2312 * where we do encode the error
2314 if ((l
= ERR_peek_error()) != 0) {
2315 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
2316 return (SSL_ERROR_SYSCALL
);
2318 return (SSL_ERROR_SSL
);
2321 if ((i
< 0) && SSL_want_read(s
)) {
2322 bio
= SSL_get_rbio(s
);
2323 if (BIO_should_read(bio
))
2324 return (SSL_ERROR_WANT_READ
);
2325 else if (BIO_should_write(bio
))
2327 * This one doesn't make too much sense ... We never try to write
2328 * to the rbio, and an application program where rbio and wbio
2329 * are separate couldn't even know what it should wait for.
2330 * However if we ever set s->rwstate incorrectly (so that we have
2331 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
2332 * wbio *are* the same, this test works around that bug; so it
2333 * might be safer to keep it.
2335 return (SSL_ERROR_WANT_WRITE
);
2336 else if (BIO_should_io_special(bio
)) {
2337 reason
= BIO_get_retry_reason(bio
);
2338 if (reason
== BIO_RR_CONNECT
)
2339 return (SSL_ERROR_WANT_CONNECT
);
2340 else if (reason
== BIO_RR_ACCEPT
)
2341 return (SSL_ERROR_WANT_ACCEPT
);
2343 return (SSL_ERROR_SYSCALL
); /* unknown */
2347 if ((i
< 0) && SSL_want_write(s
)) {
2348 bio
= SSL_get_wbio(s
);
2349 if (BIO_should_write(bio
))
2350 return (SSL_ERROR_WANT_WRITE
);
2351 else if (BIO_should_read(bio
))
2353 * See above (SSL_want_read(s) with BIO_should_write(bio))
2355 return (SSL_ERROR_WANT_READ
);
2356 else if (BIO_should_io_special(bio
)) {
2357 reason
= BIO_get_retry_reason(bio
);
2358 if (reason
== BIO_RR_CONNECT
)
2359 return (SSL_ERROR_WANT_CONNECT
);
2360 else if (reason
== BIO_RR_ACCEPT
)
2361 return (SSL_ERROR_WANT_ACCEPT
);
2363 return (SSL_ERROR_SYSCALL
);
2366 if ((i
< 0) && SSL_want_x509_lookup(s
)) {
2367 return (SSL_ERROR_WANT_X509_LOOKUP
);
2371 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
2372 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
2373 return (SSL_ERROR_ZERO_RETURN
);
2375 return (SSL_ERROR_SYSCALL
);
2378 int SSL_do_handshake(SSL
*s
)
2382 if (s
->handshake_func
== NULL
) {
2383 SSLerr(SSL_F_SSL_DO_HANDSHAKE
, SSL_R_CONNECTION_TYPE_NOT_SET
);
2387 s
->method
->ssl_renegotiate_check(s
);
2389 if (SSL_in_init(s
) || SSL_in_before(s
)) {
2390 ret
= s
->handshake_func(s
);
2395 void SSL_set_accept_state(SSL
*s
)
2399 s
->state
= SSL_ST_ACCEPT
| SSL_ST_BEFORE
;
2400 s
->handshake_func
= s
->method
->ssl_accept
;
2404 void SSL_set_connect_state(SSL
*s
)
2408 s
->state
= SSL_ST_CONNECT
| SSL_ST_BEFORE
;
2409 s
->handshake_func
= s
->method
->ssl_connect
;
2413 int ssl_undefined_function(SSL
*s
)
2415 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2419 int ssl_undefined_void_function(void)
2421 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,
2422 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2426 int ssl_undefined_const_function(const SSL
*s
)
2428 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION
,
2429 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2433 SSL_METHOD
*ssl_bad_method(int ver
)
2435 SSLerr(SSL_F_SSL_BAD_METHOD
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2439 const char *SSL_get_version(const SSL
*s
)
2441 if (s
->version
== TLS1_2_VERSION
)
2443 else if (s
->version
== TLS1_1_VERSION
)
2445 else if (s
->version
== TLS1_VERSION
)
2447 else if (s
->version
== SSL3_VERSION
)
2449 else if (s
->version
== DTLS1_BAD_VER
)
2450 return ("DTLSv0.9");
2451 else if (s
->version
== DTLS1_VERSION
)
2453 else if (s
->version
== DTLS1_2_VERSION
)
2454 return ("DTLSv1.2");
2459 SSL
*SSL_dup(SSL
*s
)
2461 STACK_OF(X509_NAME
) *sk
;
2466 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
2469 ret
->version
= s
->version
;
2470 ret
->type
= s
->type
;
2471 ret
->method
= s
->method
;
2473 if (s
->session
!= NULL
) {
2474 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2475 if (!SSL_copy_session_id(ret
, s
))
2479 * No session has been established yet, so we have to expect that
2480 * s->cert or ret->cert will be changed later -- they should not both
2481 * point to the same object, and thus we can't use
2482 * SSL_copy_session_id.
2485 ret
->method
->ssl_free(ret
);
2486 ret
->method
= s
->method
;
2487 ret
->method
->ssl_new(ret
);
2489 if (s
->cert
!= NULL
) {
2490 ssl_cert_free(ret
->cert
);
2491 ret
->cert
= ssl_cert_dup(s
->cert
);
2492 if (ret
->cert
== NULL
)
2496 if (!SSL_set_session_id_context(ret
, s
->sid_ctx
, s
->sid_ctx_length
))
2500 ret
->options
= s
->options
;
2501 ret
->mode
= s
->mode
;
2502 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
2503 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
2504 ret
->msg_callback
= s
->msg_callback
;
2505 ret
->msg_callback_arg
= s
->msg_callback_arg
;
2506 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
2507 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
2508 ret
->generate_session_id
= s
->generate_session_id
;
2510 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
2512 ret
->debug
= s
->debug
;
2514 /* copy app data, a little dangerous perhaps */
2515 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
2518 /* setup rbio, and wbio */
2519 if (s
->rbio
!= NULL
) {
2520 if (!BIO_dup_state(s
->rbio
, (char *)&ret
->rbio
))
2523 if (s
->wbio
!= NULL
) {
2524 if (s
->wbio
!= s
->rbio
) {
2525 if (!BIO_dup_state(s
->wbio
, (char *)&ret
->wbio
))
2528 ret
->wbio
= ret
->rbio
;
2530 ret
->rwstate
= s
->rwstate
;
2531 ret
->in_handshake
= s
->in_handshake
;
2532 ret
->handshake_func
= s
->handshake_func
;
2533 ret
->server
= s
->server
;
2534 ret
->renegotiate
= s
->renegotiate
;
2535 ret
->new_session
= s
->new_session
;
2536 ret
->quiet_shutdown
= s
->quiet_shutdown
;
2537 ret
->shutdown
= s
->shutdown
;
2538 ret
->state
= s
->state
; /* SSL_dup does not really work at any state,
2540 RECORD_LAYER_dup(&ret
->rlayer
, &s
->rlayer
);
2541 ret
->init_num
= 0; /* would have to copy ret->init_buf,
2542 * ret->init_msg, ret->init_num,
2546 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
2548 /* dup the cipher_list and cipher_list_by_id stacks */
2549 if (s
->cipher_list
!= NULL
) {
2550 if ((ret
->cipher_list
= sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
2553 if (s
->cipher_list_by_id
!= NULL
)
2554 if ((ret
->cipher_list_by_id
= sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
2558 /* Dup the client_CA list */
2559 if (s
->client_CA
!= NULL
) {
2560 if ((sk
= sk_X509_NAME_dup(s
->client_CA
)) == NULL
)
2562 ret
->client_CA
= sk
;
2563 for (i
= 0; i
< sk_X509_NAME_num(sk
); i
++) {
2564 xn
= sk_X509_NAME_value(sk
, i
);
2565 if (sk_X509_NAME_set(sk
, i
, X509_NAME_dup(xn
)) == NULL
) {
2578 void ssl_clear_cipher_ctx(SSL
*s
)
2580 if (s
->enc_read_ctx
!= NULL
) {
2581 EVP_CIPHER_CTX_cleanup(s
->enc_read_ctx
);
2582 OPENSSL_free(s
->enc_read_ctx
);
2583 s
->enc_read_ctx
= NULL
;
2585 if (s
->enc_write_ctx
!= NULL
) {
2586 EVP_CIPHER_CTX_cleanup(s
->enc_write_ctx
);
2587 OPENSSL_free(s
->enc_write_ctx
);
2588 s
->enc_write_ctx
= NULL
;
2590 #ifndef OPENSSL_NO_COMP
2591 COMP_CTX_free(s
->expand
);
2593 COMP_CTX_free(s
->compress
);
2598 X509
*SSL_get_certificate(const SSL
*s
)
2600 if (s
->cert
!= NULL
)
2601 return (s
->cert
->key
->x509
);
2606 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
2608 if (s
->cert
!= NULL
)
2609 return (s
->cert
->key
->privatekey
);
2614 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
2616 if (ctx
->cert
!= NULL
)
2617 return ctx
->cert
->key
->x509
;
2622 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
2624 if (ctx
->cert
!= NULL
)
2625 return ctx
->cert
->key
->privatekey
;
2630 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
2632 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
2633 return (s
->session
->cipher
);
2637 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
2639 #ifndef OPENSSL_NO_COMP
2640 return s
->compress
? COMP_CTX_get_method(s
->compress
) : NULL
;
2646 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
2648 #ifndef OPENSSL_NO_COMP
2649 return s
->expand
? COMP_CTX_get_method(s
->expand
) : NULL
;
2655 int ssl_init_wbio_buffer(SSL
*s
, int push
)
2659 if (s
->bbio
== NULL
) {
2660 bbio
= BIO_new(BIO_f_buffer());
2666 if (s
->bbio
== s
->wbio
)
2667 s
->wbio
= BIO_pop(s
->wbio
);
2669 (void)BIO_reset(bbio
);
2670 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2671 if (!BIO_set_read_buffer_size(bbio
, 1)) {
2672 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
, ERR_R_BUF_LIB
);
2676 if (s
->wbio
!= bbio
)
2677 s
->wbio
= BIO_push(bbio
, s
->wbio
);
2679 if (s
->wbio
== bbio
)
2680 s
->wbio
= BIO_pop(bbio
);
2685 void ssl_free_wbio_buffer(SSL
*s
)
2687 /* callers ensure s is never null */
2688 if (s
->bbio
== NULL
)
2691 if (s
->bbio
== s
->wbio
) {
2692 /* remove buffering */
2693 s
->wbio
= BIO_pop(s
->wbio
);
2694 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids
2695 * adding one more preprocessor symbol */
2696 assert(s
->wbio
!= NULL
);
2703 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
2705 ctx
->quiet_shutdown
= mode
;
2708 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
2710 return (ctx
->quiet_shutdown
);
2713 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
2715 s
->quiet_shutdown
= mode
;
2718 int SSL_get_quiet_shutdown(const SSL
*s
)
2720 return (s
->quiet_shutdown
);
2723 void SSL_set_shutdown(SSL
*s
, int mode
)
2728 int SSL_get_shutdown(const SSL
*s
)
2730 return (s
->shutdown
);
2733 int SSL_version(const SSL
*s
)
2735 return (s
->version
);
2738 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
2743 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
2746 if (ssl
->ctx
== ctx
)
2749 ctx
= ssl
->initial_ctx
;
2750 new_cert
= ssl_cert_dup(ctx
->cert
);
2751 if (new_cert
== NULL
) {
2754 ssl_cert_free(ssl
->cert
);
2755 ssl
->cert
= new_cert
;
2758 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
2759 * so setter APIs must prevent invalid lengths from entering the system.
2761 OPENSSL_assert(ssl
->sid_ctx_length
<= sizeof(ssl
->sid_ctx
));
2764 * If the session ID context matches that of the parent SSL_CTX,
2765 * inherit it from the new SSL_CTX as well. If however the context does
2766 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
2767 * leave it unchanged.
2769 if ((ssl
->ctx
!= NULL
) &&
2770 (ssl
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
2771 (memcmp(ssl
->sid_ctx
, ssl
->ctx
->sid_ctx
, ssl
->sid_ctx_length
) == 0)) {
2772 ssl
->sid_ctx_length
= ctx
->sid_ctx_length
;
2773 memcpy(&ssl
->sid_ctx
, &ctx
->sid_ctx
, sizeof(ssl
->sid_ctx
));
2776 CRYPTO_add(&ctx
->references
, 1, CRYPTO_LOCK_SSL_CTX
);
2777 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
2783 #ifndef OPENSSL_NO_STDIO
2784 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
2786 return (X509_STORE_set_default_paths(ctx
->cert_store
));
2789 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
2792 return (X509_STORE_load_locations(ctx
->cert_store
, CAfile
, CApath
));
2796 void SSL_set_info_callback(SSL
*ssl
,
2797 void (*cb
) (const SSL
*ssl
, int type
, int val
))
2799 ssl
->info_callback
= cb
;
2803 * One compiler (Diab DCC) doesn't like argument names in returned function
2806 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
2809 return ssl
->info_callback
;
2812 int SSL_state(const SSL
*ssl
)
2814 return (ssl
->state
);
2817 void SSL_set_state(SSL
*ssl
, int state
)
2822 void SSL_set_verify_result(SSL
*ssl
, long arg
)
2824 ssl
->verify_result
= arg
;
2827 long SSL_get_verify_result(const SSL
*ssl
)
2829 return (ssl
->verify_result
);
2832 size_t SSL_get_client_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
2835 return sizeof(ssl
->s3
->client_random
);
2836 if (outlen
> sizeof(ssl
->s3
->client_random
))
2837 outlen
= sizeof(ssl
->s3
->client_random
);
2838 memcpy(out
, ssl
->s3
->client_random
, outlen
);
2842 size_t SSL_get_server_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
2845 return sizeof(ssl
->s3
->server_random
);
2846 if (outlen
> sizeof(ssl
->s3
->server_random
))
2847 outlen
= sizeof(ssl
->s3
->server_random
);
2848 memcpy(out
, ssl
->s3
->server_random
, outlen
);
2852 size_t SSL_SESSION_get_master_key(const SSL_SESSION
*session
,
2853 unsigned char *out
, size_t outlen
)
2855 if (session
->master_key_length
< 0) {
2856 /* Should never happen */
2860 return session
->master_key_length
;
2861 if (outlen
> (size_t)session
->master_key_length
)
2862 outlen
= session
->master_key_length
;
2863 memcpy(out
, session
->master_key
, outlen
);
2867 int SSL_get_ex_new_index(long argl
, void *argp
, CRYPTO_EX_new
*new_func
,
2868 CRYPTO_EX_dup
*dup_func
, CRYPTO_EX_free
*free_func
)
2870 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL
, argl
, argp
,
2871 new_func
, dup_func
, free_func
);
2874 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
2876 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
2879 void *SSL_get_ex_data(const SSL
*s
, int idx
)
2881 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
2884 int SSL_CTX_get_ex_new_index(long argl
, void *argp
, CRYPTO_EX_new
*new_func
,
2885 CRYPTO_EX_dup
*dup_func
,
2886 CRYPTO_EX_free
*free_func
)
2888 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX
, argl
, argp
,
2889 new_func
, dup_func
, free_func
);
2892 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
2894 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
2897 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
2899 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
2907 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
2909 return (ctx
->cert_store
);
2912 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
2914 X509_STORE_free(ctx
->cert_store
);
2915 ctx
->cert_store
= store
;
2918 int SSL_want(const SSL
*s
)
2920 return (s
->rwstate
);
2924 * \brief Set the callback for generating temporary RSA keys.
2925 * \param ctx the SSL context.
2926 * \param cb the callback
2929 #ifndef OPENSSL_NO_RSA
2930 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX
*ctx
, RSA
*(*cb
) (SSL
*ssl
,
2934 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_RSA_CB
, (void (*)(void))cb
);
2937 void SSL_set_tmp_rsa_callback(SSL
*ssl
, RSA
*(*cb
) (SSL
*ssl
,
2941 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_RSA_CB
, (void (*)(void))cb
);
2947 * \brief The RSA temporary key callback function.
2948 * \param ssl the SSL session.
2949 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2950 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2951 * of the required key in bits.
2952 * \return the temporary RSA key.
2953 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2956 RSA
*cb(SSL
*ssl
, int is_export
, int keylength
)
2962 * \brief Set the callback for generating temporary DH keys.
2963 * \param ctx the SSL context.
2964 * \param dh the callback
2967 #ifndef OPENSSL_NO_DH
2968 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,
2969 DH
*(*dh
) (SSL
*ssl
, int is_export
,
2972 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
2975 void SSL_set_tmp_dh_callback(SSL
*ssl
, DH
*(*dh
) (SSL
*ssl
, int is_export
,
2978 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
2982 #ifndef OPENSSL_NO_EC
2983 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX
*ctx
,
2984 EC_KEY
*(*ecdh
) (SSL
*ssl
, int is_export
,
2987 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_ECDH_CB
,
2988 (void (*)(void))ecdh
);
2991 void SSL_set_tmp_ecdh_callback(SSL
*ssl
,
2992 EC_KEY
*(*ecdh
) (SSL
*ssl
, int is_export
,
2995 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_ECDH_CB
, (void (*)(void))ecdh
);
2999 #ifndef OPENSSL_NO_PSK
3000 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
3002 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3003 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
,
3004 SSL_R_DATA_LENGTH_TOO_LONG
);
3007 OPENSSL_free(ctx
->cert
->psk_identity_hint
);
3008 if (identity_hint
!= NULL
) {
3009 ctx
->cert
->psk_identity_hint
= BUF_strdup(identity_hint
);
3010 if (ctx
->cert
->psk_identity_hint
== NULL
)
3013 ctx
->cert
->psk_identity_hint
= NULL
;
3017 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
3022 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3023 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
3026 OPENSSL_free(s
->cert
->psk_identity_hint
);
3027 if (identity_hint
!= NULL
) {
3028 s
->cert
->psk_identity_hint
= BUF_strdup(identity_hint
);
3029 if (s
->cert
->psk_identity_hint
== NULL
)
3032 s
->cert
->psk_identity_hint
= NULL
;
3036 const char *SSL_get_psk_identity_hint(const SSL
*s
)
3038 if (s
== NULL
|| s
->session
== NULL
)
3040 return (s
->session
->psk_identity_hint
);
3043 const char *SSL_get_psk_identity(const SSL
*s
)
3045 if (s
== NULL
|| s
->session
== NULL
)
3047 return (s
->session
->psk_identity
);
3050 void SSL_set_psk_client_callback(SSL
*s
,
3051 unsigned int (*cb
) (SSL
*ssl
,
3060 s
->psk_client_callback
= cb
;
3063 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
,
3064 unsigned int (*cb
) (SSL
*ssl
,
3073 ctx
->psk_client_callback
= cb
;
3076 void SSL_set_psk_server_callback(SSL
*s
,
3077 unsigned int (*cb
) (SSL
*ssl
,
3078 const char *identity
,
3083 s
->psk_server_callback
= cb
;
3086 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
,
3087 unsigned int (*cb
) (SSL
*ssl
,
3088 const char *identity
,
3093 ctx
->psk_server_callback
= cb
;
3097 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
3098 void (*cb
) (int write_p
, int version
,
3099 int content_type
, const void *buf
,
3100 size_t len
, SSL
*ssl
, void *arg
))
3102 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
3105 void SSL_set_msg_callback(SSL
*ssl
,
3106 void (*cb
) (int write_p
, int version
,
3107 int content_type
, const void *buf
,
3108 size_t len
, SSL
*ssl
, void *arg
))
3110 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
3113 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
3114 int (*cb
) (SSL
*ssl
,
3118 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
3119 (void (*)(void))cb
);
3122 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
3123 int (*cb
) (SSL
*ssl
,
3124 int is_forward_secure
))
3126 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
3127 (void (*)(void))cb
);
3131 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3132 * vairable, freeing EVP_MD_CTX previously stored in that variable, if any.
3133 * If EVP_MD pointer is passed, initializes ctx with this md Returns newly
3137 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
3139 ssl_clear_hash_ctx(hash
);
3140 *hash
= EVP_MD_CTX_create();
3142 EVP_DigestInit_ex(*hash
, md
, NULL
);
3146 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
3150 EVP_MD_CTX_destroy(*hash
);
3154 /* Retrieve handshake hashes */
3155 int ssl_handshake_hash(SSL
*s
, unsigned char *out
, int outlen
)
3157 unsigned char *p
= out
;
3162 EVP_MD_CTX_init(&ctx
);
3163 for (idx
= 0; ssl_get_handshake_digest(idx
, &mask
, &md
); idx
++) {
3164 if (mask
& ssl_get_algorithm2(s
)) {
3165 int hashsize
= EVP_MD_size(md
);
3166 EVP_MD_CTX
*hdgst
= s
->s3
->handshake_dgst
[idx
];
3167 if (!hdgst
|| hashsize
< 0 || hashsize
> outlen
)
3169 if (!EVP_MD_CTX_copy_ex(&ctx
, hdgst
))
3171 if (!EVP_DigestFinal_ex(&ctx
, p
, NULL
))
3179 EVP_MD_CTX_cleanup(&ctx
);
3183 void SSL_set_debug(SSL
*s
, int debug
)
3188 int SSL_cache_hit(SSL
*s
)
3193 int SSL_is_server(SSL
*s
)
3198 void SSL_set_security_level(SSL
*s
, int level
)
3200 s
->cert
->sec_level
= level
;
3203 int SSL_get_security_level(const SSL
*s
)
3205 return s
->cert
->sec_level
;
3208 void SSL_set_security_callback(SSL
*s
,
3209 int (*cb
) (SSL
*s
, SSL_CTX
*ctx
, int op
,
3210 int bits
, int nid
, void *other
,
3213 s
->cert
->sec_cb
= cb
;
3216 int (*SSL_get_security_callback(const SSL
*s
)) (SSL
*s
, SSL_CTX
*ctx
, int op
,
3218 void *other
, void *ex
) {
3219 return s
->cert
->sec_cb
;
3222 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
3224 s
->cert
->sec_ex
= ex
;
3227 void *SSL_get0_security_ex_data(const SSL
*s
)
3229 return s
->cert
->sec_ex
;
3232 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
3234 ctx
->cert
->sec_level
= level
;
3237 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
3239 return ctx
->cert
->sec_level
;
3242 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
3243 int (*cb
) (SSL
*s
, SSL_CTX
*ctx
, int op
,
3244 int bits
, int nid
, void *other
,
3247 ctx
->cert
->sec_cb
= cb
;
3250 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (SSL
*s
,
3256 return ctx
->cert
->sec_cb
;
3259 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
3261 ctx
->cert
->sec_ex
= ex
;
3264 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
3266 return ctx
->cert
->sec_ex
;
3269 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);