2 * ! \file ssl/ssl_lib.c \brief Version independent SSL functions.
4 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
7 * This package is an SSL implementation written
8 * by Eric Young (eay@cryptsoft.com).
9 * The implementation was written so as to conform with Netscapes SSL.
11 * This library is free for commercial and non-commercial use as long as
12 * the following conditions are aheared to. The following conditions
13 * apply to all code found in this distribution, be it the RC4, RSA,
14 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
15 * included with this distribution is covered by the same copyright terms
16 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
18 * Copyright remains Eric Young's, and as such any Copyright notices in
19 * the code are not to be removed.
20 * If this package is used in a product, Eric Young should be given attribution
21 * as the author of the parts of the library used.
22 * This can be in the form of a textual message at program startup or
23 * in documentation (online or textual) provided with the package.
25 * Redistribution and use in source and binary forms, with or without
26 * modification, are permitted provided that the following conditions
28 * 1. Redistributions of source code must retain the copyright
29 * notice, this list of conditions and the following disclaimer.
30 * 2. Redistributions in binary form must reproduce the above copyright
31 * notice, this list of conditions and the following disclaimer in the
32 * documentation and/or other materials provided with the distribution.
33 * 3. All advertising materials mentioning features or use of this software
34 * must display the following acknowledgement:
35 * "This product includes cryptographic software written by
36 * Eric Young (eay@cryptsoft.com)"
37 * The word 'cryptographic' can be left out if the rouines from the library
38 * being used are not cryptographic related :-).
39 * 4. If you include any Windows specific code (or a derivative thereof) from
40 * the apps directory (application code) you must include an acknowledgement:
41 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
43 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55 * The licence and distribution terms for any publically available version or
56 * derivative of this code cannot be changed. i.e. this code cannot simply be
57 * copied and put under another distribution licence
58 * [including the GNU Public Licence.]
60 /* ====================================================================
61 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
63 * Redistribution and use in source and binary forms, with or without
64 * modification, are permitted provided that the following conditions
67 * 1. Redistributions of source code must retain the above copyright
68 * notice, this list of conditions and the following disclaimer.
70 * 2. Redistributions in binary form must reproduce the above copyright
71 * notice, this list of conditions and the following disclaimer in
72 * the documentation and/or other materials provided with the
75 * 3. All advertising materials mentioning features or use of this
76 * software must display the following acknowledgment:
77 * "This product includes software developed by the OpenSSL Project
78 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
80 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
81 * endorse or promote products derived from this software without
82 * prior written permission. For written permission, please contact
83 * openssl-core@openssl.org.
85 * 5. Products derived from this software may not be called "OpenSSL"
86 * nor may "OpenSSL" appear in their names without prior written
87 * permission of the OpenSSL Project.
89 * 6. Redistributions of any form whatsoever must retain the following
91 * "This product includes software developed by the OpenSSL Project
92 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
94 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
95 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
96 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
97 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
98 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
99 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
100 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
101 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
102 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
103 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
104 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
105 * OF THE POSSIBILITY OF SUCH DAMAGE.
106 * ====================================================================
108 * This product includes cryptographic software written by Eric Young
109 * (eay@cryptsoft.com). This product includes software written by Tim
110 * Hudson (tjh@cryptsoft.com).
113 /* ====================================================================
114 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
115 * ECC cipher suite support in OpenSSL originally developed by
116 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
118 /* ====================================================================
119 * Copyright 2005 Nokia. All rights reserved.
121 * The portions of the attached software ("Contribution") is developed by
122 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
125 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
126 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
127 * support (see RFC 4279) to OpenSSL.
129 * No patent licenses or other rights except those expressly stated in
130 * the OpenSSL open source license shall be deemed granted or received
131 * expressly, by implication, estoppel, or otherwise.
133 * No assurances are provided by Nokia that the Contribution does not
134 * infringe the patent or other intellectual property rights of any third
135 * party or that the license provides you with all the necessary rights
136 * to make use of the Contribution.
138 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
139 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
140 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
141 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
149 #include "ssl_locl.h"
150 #include "kssl_lcl.h"
151 #include <openssl/objects.h>
152 #include <openssl/lhash.h>
153 #include <openssl/x509v3.h>
154 #include <openssl/rand.h>
155 #include <openssl/ocsp.h>
156 #ifndef OPENSSL_NO_DH
157 # include <openssl/dh.h>
159 #ifndef OPENSSL_NO_ENGINE
160 # include <openssl/engine.h>
163 const char *SSL_version_str
= OPENSSL_VERSION_TEXT
;
165 SSL3_ENC_METHOD ssl3_undef_enc_method
= {
167 * evil casts, but these functions are only called if there's a library
170 (int (*)(SSL
*, int))ssl_undefined_function
,
171 (int (*)(SSL
*, unsigned char *, int))ssl_undefined_function
,
172 ssl_undefined_function
,
173 (int (*)(SSL
*, unsigned char *, unsigned char *, int))
174 ssl_undefined_function
,
175 (int (*)(SSL
*, int))ssl_undefined_function
,
176 (int (*)(SSL
*, const char *, int, unsigned char *))
177 ssl_undefined_function
,
178 0, /* finish_mac_length */
179 (int (*)(SSL
*, int, unsigned char *))ssl_undefined_function
,
180 NULL
, /* client_finished_label */
181 0, /* client_finished_label_len */
182 NULL
, /* server_finished_label */
183 0, /* server_finished_label_len */
184 (int (*)(int))ssl_undefined_function
,
185 (int (*)(SSL
*, unsigned char *, size_t, const char *,
186 size_t, const unsigned char *, size_t,
187 int use_context
))ssl_undefined_function
,
190 int SSL_clear(SSL
*s
)
193 if (s
->method
== NULL
) {
194 SSLerr(SSL_F_SSL_CLEAR
, SSL_R_NO_METHOD_SPECIFIED
);
198 if (ssl_clear_bad_session(s
)) {
199 SSL_SESSION_free(s
->session
);
209 * Disabled since version 1.10 of this file (early return not
210 * needed because SSL_clear is not called when doing renegotiation)
213 * This is set if we are doing dynamic renegotiation so keep
214 * the old cipher. It is sort of a SSL_clear_lite :-)
219 if (s
->renegotiate
) {
220 SSLerr(SSL_F_SSL_CLEAR
, ERR_R_INTERNAL_ERROR
);
227 s
->state
= SSL_ST_BEFORE
| ((s
->server
) ? SSL_ST_ACCEPT
: SSL_ST_CONNECT
);
229 s
->version
= s
->method
->version
;
230 s
->client_version
= s
->version
;
231 s
->rwstate
= SSL_NOTHING
;
232 s
->rstate
= SSL_ST_READ_HEADER
;
234 s
->read_ahead
= s
->ctx
->read_ahead
;
237 if (s
->init_buf
!= NULL
) {
238 BUF_MEM_free(s
->init_buf
);
242 ssl_clear_cipher_ctx(s
);
243 ssl_clear_hash_ctx(&s
->read_hash
);
244 ssl_clear_hash_ctx(&s
->write_hash
);
250 * Check to see if we were changed into a different method, if so, revert
251 * back if we are not doing session-id reuse.
253 if (!s
->in_handshake
&& (s
->session
== NULL
)
254 && (s
->method
!= s
->ctx
->method
)) {
255 s
->method
->ssl_free(s
);
256 s
->method
= s
->ctx
->method
;
257 if (!s
->method
->ssl_new(s
))
261 s
->method
->ssl_clear(s
);
265 /** Used to change an SSL_CTXs default SSL method type */
266 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
, const SSL_METHOD
*meth
)
268 STACK_OF(SSL_CIPHER
) *sk
;
272 sk
= ssl_create_cipher_list(ctx
->method
, &(ctx
->cipher_list
),
273 &(ctx
->cipher_list_by_id
),
275 SSL2_VERSION
? "SSLv2" :
276 SSL_DEFAULT_CIPHER_LIST
);
277 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
278 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
,
279 SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
285 SSL
*SSL_new(SSL_CTX
*ctx
)
290 SSLerr(SSL_F_SSL_NEW
, SSL_R_NULL_SSL_CTX
);
293 if (ctx
->method
== NULL
) {
294 SSLerr(SSL_F_SSL_NEW
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
298 s
= (SSL
*)OPENSSL_malloc(sizeof(SSL
));
301 memset(s
, 0, sizeof(SSL
));
303 #ifndef OPENSSL_NO_KRB5
304 s
->kssl_ctx
= kssl_ctx_new();
305 #endif /* OPENSSL_NO_KRB5 */
307 s
->options
= ctx
->options
;
309 s
->max_cert_list
= ctx
->max_cert_list
;
312 if (ctx
->cert
!= NULL
) {
314 * Earlier library versions used to copy the pointer to the CERT, not
315 * its contents; only when setting new parameters for the per-SSL
316 * copy, ssl_cert_new would be called (and the direct reference to
317 * the per-SSL_CTX settings would be lost, but those still were
318 * indirectly accessed for various purposes, and for that reason they
319 * used to be known as s->ctx->default_cert). Now we don't look at the
320 * SSL_CTX's CERT after having duplicated it once.
323 s
->cert
= ssl_cert_dup(ctx
->cert
);
327 s
->cert
= NULL
; /* Cannot really happen (see SSL_CTX_new) */
329 s
->read_ahead
= ctx
->read_ahead
;
330 s
->msg_callback
= ctx
->msg_callback
;
331 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
332 s
->verify_mode
= ctx
->verify_mode
;
334 s
->verify_depth
= ctx
->verify_depth
;
336 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
337 OPENSSL_assert(s
->sid_ctx_length
<= sizeof s
->sid_ctx
);
338 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
339 s
->verify_callback
= ctx
->default_verify_callback
;
340 s
->generate_session_id
= ctx
->generate_session_id
;
342 s
->param
= X509_VERIFY_PARAM_new();
345 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
347 s
->purpose
= ctx
->purpose
;
348 s
->trust
= ctx
->trust
;
350 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
351 s
->max_send_fragment
= ctx
->max_send_fragment
;
353 CRYPTO_add(&ctx
->references
, 1, CRYPTO_LOCK_SSL_CTX
);
355 #ifndef OPENSSL_NO_TLSEXT
356 s
->tlsext_debug_cb
= 0;
357 s
->tlsext_debug_arg
= NULL
;
358 s
->tlsext_ticket_expected
= 0;
359 s
->tlsext_status_type
= -1;
360 s
->tlsext_status_expected
= 0;
361 s
->tlsext_ocsp_ids
= NULL
;
362 s
->tlsext_ocsp_exts
= NULL
;
363 s
->tlsext_ocsp_resp
= NULL
;
364 s
->tlsext_ocsp_resplen
= -1;
365 CRYPTO_add(&ctx
->references
, 1, CRYPTO_LOCK_SSL_CTX
);
366 s
->initial_ctx
= ctx
;
367 # ifndef OPENSSL_NO_NEXTPROTONEG
368 s
->next_proto_negotiated
= NULL
;
372 s
->verify_result
= X509_V_OK
;
374 s
->method
= ctx
->method
;
376 if (!s
->method
->ssl_new(s
))
379 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
383 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
385 #ifndef OPENSSL_NO_PSK
386 s
->psk_client_callback
= ctx
->psk_client_callback
;
387 s
->psk_server_callback
= ctx
->psk_server_callback
;
394 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
398 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
399 unsigned int sid_ctx_len
)
401 if (sid_ctx_len
> sizeof ctx
->sid_ctx
) {
402 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,
403 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
406 ctx
->sid_ctx_length
= sid_ctx_len
;
407 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
412 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
413 unsigned int sid_ctx_len
)
415 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
416 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,
417 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
420 ssl
->sid_ctx_length
= sid_ctx_len
;
421 memcpy(ssl
->sid_ctx
, sid_ctx
, sid_ctx_len
);
426 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
428 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX
);
429 ctx
->generate_session_id
= cb
;
430 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX
);
434 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
436 CRYPTO_w_lock(CRYPTO_LOCK_SSL
);
437 ssl
->generate_session_id
= cb
;
438 CRYPTO_w_unlock(CRYPTO_LOCK_SSL
);
442 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
446 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
447 * we can "construct" a session to give us the desired check - ie. to
448 * find if there's a session in the hash table that would conflict with
449 * any new session built out of this id/id_len and the ssl_version in use
454 if (id_len
> sizeof r
.session_id
)
457 r
.ssl_version
= ssl
->version
;
458 r
.session_id_length
= id_len
;
459 memcpy(r
.session_id
, id
, id_len
);
461 * NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
462 * callback is calling us to check the uniqueness of a shorter ID, it
463 * must be compared as a padded-out ID because that is what it will be
464 * converted to when the callback has finished choosing it.
466 if ((r
.ssl_version
== SSL2_VERSION
) &&
467 (id_len
< SSL2_SSL_SESSION_ID_LENGTH
)) {
468 memset(r
.session_id
+ id_len
, 0, SSL2_SSL_SESSION_ID_LENGTH
- id_len
);
469 r
.session_id_length
= SSL2_SSL_SESSION_ID_LENGTH
;
472 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX
);
473 p
= lh_SSL_SESSION_retrieve(ssl
->ctx
->sessions
, &r
);
474 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX
);
478 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
480 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
483 int SSL_set_purpose(SSL
*s
, int purpose
)
485 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
488 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
490 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
493 int SSL_set_trust(SSL
*s
, int trust
)
495 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
498 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
500 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
503 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
505 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
508 void SSL_free(SSL
*s
)
515 i
= CRYPTO_add(&s
->references
, -1, CRYPTO_LOCK_SSL
);
523 fprintf(stderr
, "SSL_free, bad reference count\n");
529 X509_VERIFY_PARAM_free(s
->param
);
531 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
533 if (s
->bbio
!= NULL
) {
534 /* If the buffering BIO is in place, pop it off */
535 if (s
->bbio
== s
->wbio
) {
536 s
->wbio
= BIO_pop(s
->wbio
);
542 BIO_free_all(s
->rbio
);
543 if ((s
->wbio
!= NULL
) && (s
->wbio
!= s
->rbio
))
544 BIO_free_all(s
->wbio
);
546 if (s
->init_buf
!= NULL
)
547 BUF_MEM_free(s
->init_buf
);
549 /* add extra stuff */
550 if (s
->cipher_list
!= NULL
)
551 sk_SSL_CIPHER_free(s
->cipher_list
);
552 if (s
->cipher_list_by_id
!= NULL
)
553 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
555 /* Make the next call work :-) */
556 if (s
->session
!= NULL
) {
557 ssl_clear_bad_session(s
);
558 SSL_SESSION_free(s
->session
);
561 ssl_clear_cipher_ctx(s
);
562 ssl_clear_hash_ctx(&s
->read_hash
);
563 ssl_clear_hash_ctx(&s
->write_hash
);
566 ssl_cert_free(s
->cert
);
567 /* Free up if allocated */
569 #ifndef OPENSSL_NO_TLSEXT
570 if (s
->tlsext_hostname
)
571 OPENSSL_free(s
->tlsext_hostname
);
573 SSL_CTX_free(s
->initial_ctx
);
574 # ifndef OPENSSL_NO_EC
575 if (s
->tlsext_ecpointformatlist
)
576 OPENSSL_free(s
->tlsext_ecpointformatlist
);
577 if (s
->tlsext_ellipticcurvelist
)
578 OPENSSL_free(s
->tlsext_ellipticcurvelist
);
579 # endif /* OPENSSL_NO_EC */
580 if (s
->tlsext_opaque_prf_input
)
581 OPENSSL_free(s
->tlsext_opaque_prf_input
);
582 if (s
->tlsext_ocsp_exts
)
583 sk_X509_EXTENSION_pop_free(s
->tlsext_ocsp_exts
, X509_EXTENSION_free
);
584 if (s
->tlsext_ocsp_ids
)
585 sk_OCSP_RESPID_pop_free(s
->tlsext_ocsp_ids
, OCSP_RESPID_free
);
586 if (s
->tlsext_ocsp_resp
)
587 OPENSSL_free(s
->tlsext_ocsp_resp
);
590 if (s
->client_CA
!= NULL
)
591 sk_X509_NAME_pop_free(s
->client_CA
, X509_NAME_free
);
593 if (s
->method
!= NULL
)
594 s
->method
->ssl_free(s
);
597 SSL_CTX_free(s
->ctx
);
599 #ifndef OPENSSL_NO_KRB5
600 if (s
->kssl_ctx
!= NULL
)
601 kssl_ctx_free(s
->kssl_ctx
);
602 #endif /* OPENSSL_NO_KRB5 */
604 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
605 if (s
->next_proto_negotiated
)
606 OPENSSL_free(s
->next_proto_negotiated
);
609 #ifndef OPENSSL_NO_SRTP
610 if (s
->srtp_profiles
)
611 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
617 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
620 * If the output buffering BIO is still in place, remove it
622 if (s
->bbio
!= NULL
) {
623 if (s
->wbio
== s
->bbio
) {
624 s
->wbio
= s
->wbio
->next_bio
;
625 s
->bbio
->next_bio
= NULL
;
628 if ((s
->rbio
!= NULL
) && (s
->rbio
!= rbio
))
629 BIO_free_all(s
->rbio
);
630 if ((s
->wbio
!= NULL
) && (s
->wbio
!= wbio
) && (s
->rbio
!= s
->wbio
))
631 BIO_free_all(s
->wbio
);
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
)
813 int SSL_get_read_ahead(const SSL
*s
)
815 return (s
->read_ahead
);
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
;
842 CRYPTO_add(&r
->references
, 1, CRYPTO_LOCK_X509
);
847 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
851 if ((s
== NULL
) || (s
->session
== NULL
)
852 || (s
->session
->sess_cert
== NULL
))
855 r
= s
->session
->sess_cert
->cert_chain
;
858 * If we are a client, cert_chain includes the peer's own certificate; if
859 * we are a server, it does not.
866 * Now in theory, since the calling process own 't' it should be safe to
867 * modify. We need to be able to read f without being hassled
869 void SSL_copy_session_id(SSL
*t
, const SSL
*f
)
873 /* Do we need to to SSL locking? */
874 SSL_set_session(t
, SSL_get_session(f
));
877 * what if we are setup as SSLv2 but want to talk SSLv3 or vice-versa
879 if (t
->method
!= f
->method
) {
880 t
->method
->ssl_free(t
); /* cleanup current */
881 t
->method
= f
->method
; /* change method */
882 t
->method
->ssl_new(t
); /* setup new */
886 if (f
->cert
!= NULL
) {
887 CRYPTO_add(&f
->cert
->references
, 1, CRYPTO_LOCK_SSL_CERT
);
893 SSL_set_session_id_context(t
, f
->sid_ctx
, f
->sid_ctx_length
);
896 /* Fix this so it checks all the valid key/cert options */
897 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
900 (ctx
->cert
== NULL
) || (ctx
->cert
->key
->x509
== NULL
)) {
901 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,
902 SSL_R_NO_CERTIFICATE_ASSIGNED
);
905 if (ctx
->cert
->key
->privatekey
== NULL
) {
906 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,
907 SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
910 return (X509_check_private_key
911 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
));
914 /* Fix this function so that it takes an optional type parameter */
915 int SSL_check_private_key(const SSL
*ssl
)
918 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, ERR_R_PASSED_NULL_PARAMETER
);
921 if (ssl
->cert
== NULL
) {
922 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
925 if (ssl
->cert
->key
->x509
== NULL
) {
926 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
929 if (ssl
->cert
->key
->privatekey
== NULL
) {
930 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
933 return (X509_check_private_key(ssl
->cert
->key
->x509
,
934 ssl
->cert
->key
->privatekey
));
937 int SSL_accept(SSL
*s
)
939 if (s
->handshake_func
== 0)
940 /* Not properly initialized yet */
941 SSL_set_accept_state(s
);
943 return (s
->method
->ssl_accept(s
));
946 int SSL_connect(SSL
*s
)
948 if (s
->handshake_func
== 0)
949 /* Not properly initialized yet */
950 SSL_set_connect_state(s
);
952 return (s
->method
->ssl_connect(s
));
955 long SSL_get_default_timeout(const SSL
*s
)
957 return (s
->method
->get_timeout());
960 int SSL_read(SSL
*s
, void *buf
, int num
)
962 if (s
->handshake_func
== 0) {
963 SSLerr(SSL_F_SSL_READ
, SSL_R_UNINITIALIZED
);
967 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
968 s
->rwstate
= SSL_NOTHING
;
971 return (s
->method
->ssl_read(s
, buf
, num
));
974 int SSL_peek(SSL
*s
, void *buf
, int num
)
976 if (s
->handshake_func
== 0) {
977 SSLerr(SSL_F_SSL_PEEK
, SSL_R_UNINITIALIZED
);
981 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
984 return (s
->method
->ssl_peek(s
, buf
, num
));
987 int SSL_write(SSL
*s
, const void *buf
, int num
)
989 if (s
->handshake_func
== 0) {
990 SSLerr(SSL_F_SSL_WRITE
, SSL_R_UNINITIALIZED
);
994 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
995 s
->rwstate
= SSL_NOTHING
;
996 SSLerr(SSL_F_SSL_WRITE
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
999 return (s
->method
->ssl_write(s
, buf
, num
));
1002 int SSL_shutdown(SSL
*s
)
1005 * Note that this function behaves differently from what one might
1006 * expect. Return values are 0 for no success (yet), 1 for success; but
1007 * calling it once is usually not enough, even if blocking I/O is used
1008 * (see ssl3_shutdown).
1011 if (s
->handshake_func
== 0) {
1012 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
1016 if ((s
!= NULL
) && !SSL_in_init(s
))
1017 return (s
->method
->ssl_shutdown(s
));
1022 int SSL_renegotiate(SSL
*s
)
1024 if (s
->renegotiate
== 0)
1029 return (s
->method
->ssl_renegotiate(s
));
1032 int SSL_renegotiate_abbreviated(SSL
*s
)
1034 if (s
->renegotiate
== 0)
1039 return (s
->method
->ssl_renegotiate(s
));
1042 int SSL_renegotiate_pending(SSL
*s
)
1045 * becomes true when negotiation is requested; false again once a
1046 * handshake has finished
1048 return (s
->renegotiate
!= 0);
1051 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
1056 case SSL_CTRL_GET_READ_AHEAD
:
1057 return (s
->read_ahead
);
1058 case SSL_CTRL_SET_READ_AHEAD
:
1060 s
->read_ahead
= larg
;
1063 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1064 s
->msg_callback_arg
= parg
;
1067 case SSL_CTRL_OPTIONS
:
1068 return (s
->options
|= larg
);
1069 case SSL_CTRL_CLEAR_OPTIONS
:
1070 return (s
->options
&= ~larg
);
1072 return (s
->mode
|= larg
);
1073 case SSL_CTRL_CLEAR_MODE
:
1074 return (s
->mode
&= ~larg
);
1075 case SSL_CTRL_GET_MAX_CERT_LIST
:
1076 return (s
->max_cert_list
);
1077 case SSL_CTRL_SET_MAX_CERT_LIST
:
1078 l
= s
->max_cert_list
;
1079 s
->max_cert_list
= larg
;
1081 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
1082 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
1084 s
->max_send_fragment
= larg
;
1086 case SSL_CTRL_GET_RI_SUPPORT
:
1088 return s
->s3
->send_connection_binding
;
1092 return (s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
));
1096 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
1099 case SSL_CTRL_SET_MSG_CALLBACK
:
1100 s
->msg_callback
= (void (*)
1101 (int write_p
, int version
, int content_type
,
1102 const void *buf
, size_t len
, SSL
*ssl
,
1107 return (s
->method
->ssl_callback_ctrl(s
, cmd
, fp
));
1111 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
1113 return ctx
->sessions
;
1116 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
1121 case SSL_CTRL_GET_READ_AHEAD
:
1122 return (ctx
->read_ahead
);
1123 case SSL_CTRL_SET_READ_AHEAD
:
1124 l
= ctx
->read_ahead
;
1125 ctx
->read_ahead
= larg
;
1128 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1129 ctx
->msg_callback_arg
= parg
;
1132 case SSL_CTRL_GET_MAX_CERT_LIST
:
1133 return (ctx
->max_cert_list
);
1134 case SSL_CTRL_SET_MAX_CERT_LIST
:
1135 l
= ctx
->max_cert_list
;
1136 ctx
->max_cert_list
= larg
;
1139 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
1140 l
= ctx
->session_cache_size
;
1141 ctx
->session_cache_size
= larg
;
1143 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
1144 return (ctx
->session_cache_size
);
1145 case SSL_CTRL_SET_SESS_CACHE_MODE
:
1146 l
= ctx
->session_cache_mode
;
1147 ctx
->session_cache_mode
= larg
;
1149 case SSL_CTRL_GET_SESS_CACHE_MODE
:
1150 return (ctx
->session_cache_mode
);
1152 case SSL_CTRL_SESS_NUMBER
:
1153 return (lh_SSL_SESSION_num_items(ctx
->sessions
));
1154 case SSL_CTRL_SESS_CONNECT
:
1155 return (ctx
->stats
.sess_connect
);
1156 case SSL_CTRL_SESS_CONNECT_GOOD
:
1157 return (ctx
->stats
.sess_connect_good
);
1158 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
1159 return (ctx
->stats
.sess_connect_renegotiate
);
1160 case SSL_CTRL_SESS_ACCEPT
:
1161 return (ctx
->stats
.sess_accept
);
1162 case SSL_CTRL_SESS_ACCEPT_GOOD
:
1163 return (ctx
->stats
.sess_accept_good
);
1164 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
1165 return (ctx
->stats
.sess_accept_renegotiate
);
1166 case SSL_CTRL_SESS_HIT
:
1167 return (ctx
->stats
.sess_hit
);
1168 case SSL_CTRL_SESS_CB_HIT
:
1169 return (ctx
->stats
.sess_cb_hit
);
1170 case SSL_CTRL_SESS_MISSES
:
1171 return (ctx
->stats
.sess_miss
);
1172 case SSL_CTRL_SESS_TIMEOUTS
:
1173 return (ctx
->stats
.sess_timeout
);
1174 case SSL_CTRL_SESS_CACHE_FULL
:
1175 return (ctx
->stats
.sess_cache_full
);
1176 case SSL_CTRL_OPTIONS
:
1177 return (ctx
->options
|= larg
);
1178 case SSL_CTRL_CLEAR_OPTIONS
:
1179 return (ctx
->options
&= ~larg
);
1181 return (ctx
->mode
|= larg
);
1182 case SSL_CTRL_CLEAR_MODE
:
1183 return (ctx
->mode
&= ~larg
);
1184 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
1185 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
1187 ctx
->max_send_fragment
= larg
;
1190 return (ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
));
1194 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
1197 case SSL_CTRL_SET_MSG_CALLBACK
:
1198 ctx
->msg_callback
= (void (*)
1199 (int write_p
, int version
, int content_type
,
1200 const void *buf
, size_t len
, SSL
*ssl
,
1205 return (ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
));
1209 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
1217 return ((l
> 0) ? 1 : -1);
1220 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
1221 const SSL_CIPHER
*const *bp
)
1225 l
= (*ap
)->id
- (*bp
)->id
;
1229 return ((l
> 0) ? 1 : -1);
1232 /** return a STACK of the ciphers available for the SSL and in order of
1234 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
1237 if (s
->cipher_list
!= NULL
) {
1238 return (s
->cipher_list
);
1239 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
1240 return (s
->ctx
->cipher_list
);
1246 /** return a STACK of the ciphers available for the SSL and in order of
1248 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
1251 if (s
->cipher_list_by_id
!= NULL
) {
1252 return (s
->cipher_list_by_id
);
1253 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list_by_id
!= NULL
)) {
1254 return (s
->ctx
->cipher_list_by_id
);
1260 /** The old interface to get the same thing as SSL_get_ciphers() */
1261 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
1264 STACK_OF(SSL_CIPHER
) *sk
;
1268 sk
= SSL_get_ciphers(s
);
1269 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
1271 c
= sk_SSL_CIPHER_value(sk
, n
);
1277 /** specify the ciphers to be used by default by the SSL_CTX */
1278 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
1280 STACK_OF(SSL_CIPHER
) *sk
;
1282 sk
= ssl_create_cipher_list(ctx
->method
, &ctx
->cipher_list
,
1283 &ctx
->cipher_list_by_id
, str
);
1285 * ssl_create_cipher_list may return an empty stack if it was unable to
1286 * find a cipher matching the given rule string (for example if the rule
1287 * string specifies a cipher which has been disabled). This is not an
1288 * error as far as ssl_create_cipher_list is concerned, and hence
1289 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
1293 else if (sk_SSL_CIPHER_num(sk
) == 0) {
1294 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
1300 /** specify the ciphers to be used by the SSL */
1301 int SSL_set_cipher_list(SSL
*s
, const char *str
)
1303 STACK_OF(SSL_CIPHER
) *sk
;
1305 sk
= ssl_create_cipher_list(s
->ctx
->method
, &s
->cipher_list
,
1306 &s
->cipher_list_by_id
, str
);
1307 /* see comment in SSL_CTX_set_cipher_list */
1310 else if (sk_SSL_CIPHER_num(sk
) == 0) {
1311 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
1317 /* works well for SSLv2, not so good for SSLv3 */
1318 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int len
)
1321 STACK_OF(SSL_CIPHER
) *sk
;
1325 if ((s
->session
== NULL
) || (s
->session
->ciphers
== NULL
) || (len
< 2))
1329 sk
= s
->session
->ciphers
;
1331 if (sk_SSL_CIPHER_num(sk
) == 0)
1334 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); i
++) {
1337 c
= sk_SSL_CIPHER_value(sk
, i
);
1338 n
= strlen(c
->name
);
1354 int ssl_cipher_list_to_bytes(SSL
*s
, STACK_OF(SSL_CIPHER
) *sk
,
1356 int (*put_cb
) (const SSL_CIPHER
*,
1362 #ifndef OPENSSL_NO_KRB5
1363 int nokrb5
= !kssl_tgt_is_available(s
->kssl_ctx
);
1364 #endif /* OPENSSL_NO_KRB5 */
1370 put_cb
= s
->method
->put_cipher_by_char
;
1372 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); i
++) {
1373 c
= sk_SSL_CIPHER_value(sk
, i
);
1374 /* Skip TLS v1.2 only ciphersuites if lower than v1.2 */
1375 if ((c
->algorithm_ssl
& SSL_TLSV1_2
) &&
1376 (TLS1_get_client_version(s
) < TLS1_2_VERSION
))
1378 #ifndef OPENSSL_NO_KRB5
1379 if (((c
->algorithm_mkey
& SSL_kKRB5
)
1380 || (c
->algorithm_auth
& SSL_aKRB5
)) && nokrb5
)
1382 #endif /* OPENSSL_NO_KRB5 */
1383 #ifndef OPENSSL_NO_PSK
1384 /* with PSK there must be client callback set */
1385 if (((c
->algorithm_mkey
& SSL_kPSK
) || (c
->algorithm_auth
& SSL_aPSK
))
1386 && s
->psk_client_callback
== NULL
)
1388 #endif /* OPENSSL_NO_PSK */
1389 #ifndef OPENSSL_NO_SRP
1390 if (((c
->algorithm_mkey
& SSL_kSRP
) || (c
->algorithm_auth
& SSL_aSRP
))
1391 && !(s
->srp_ctx
.srp_Mask
& SSL_kSRP
))
1393 #endif /* OPENSSL_NO_SRP */
1398 * If p == q, no ciphers; caller indicates an error. Otherwise, add
1402 if (!s
->renegotiate
) {
1403 static SSL_CIPHER scsv
= {
1404 0, NULL
, SSL3_CK_SCSV
, 0, 0, 0, 0, 0, 0, 0, 0, 0
1406 j
= put_cb(&scsv
, p
);
1408 #ifdef OPENSSL_RI_DEBUG
1410 "TLS_EMPTY_RENEGOTIATION_INFO_SCSV sent by client\n");
1414 if (s
->mode
& SSL_MODE_SEND_FALLBACK_SCSV
) {
1415 static SSL_CIPHER scsv
= {
1416 0, NULL
, SSL3_CK_FALLBACK_SCSV
, 0, 0, 0, 0, 0, 0, 0, 0, 0
1418 j
= put_cb(&scsv
, p
);
1426 STACK_OF(SSL_CIPHER
) *ssl_bytes_to_cipher_list(SSL
*s
, unsigned char *p
,
1428 STACK_OF(SSL_CIPHER
) **skp
)
1430 const SSL_CIPHER
*c
;
1431 STACK_OF(SSL_CIPHER
) *sk
;
1435 s
->s3
->send_connection_binding
= 0;
1437 n
= ssl_put_cipher_by_char(s
, NULL
, NULL
);
1438 if (n
== 0 || (num
% n
) != 0) {
1439 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,
1440 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
1443 if ((skp
== NULL
) || (*skp
== NULL
)) {
1444 sk
= sk_SSL_CIPHER_new_null(); /* change perhaps later */
1446 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
1451 sk_SSL_CIPHER_zero(sk
);
1454 for (i
= 0; i
< num
; i
+= n
) {
1455 /* Check for TLS_EMPTY_RENEGOTIATION_INFO_SCSV */
1456 if (s
->s3
&& (n
!= 3 || !p
[0]) &&
1457 (p
[n
- 2] == ((SSL3_CK_SCSV
>> 8) & 0xff)) &&
1458 (p
[n
- 1] == (SSL3_CK_SCSV
& 0xff))) {
1459 /* SCSV fatal if renegotiating */
1460 if (s
->renegotiate
) {
1461 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,
1462 SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING
);
1463 ssl3_send_alert(s
, SSL3_AL_FATAL
, SSL_AD_HANDSHAKE_FAILURE
);
1466 s
->s3
->send_connection_binding
= 1;
1468 #ifdef OPENSSL_RI_DEBUG
1469 fprintf(stderr
, "SCSV received by server\n");
1474 /* Check for TLS_FALLBACK_SCSV */
1475 if ((n
!= 3 || !p
[0]) &&
1476 (p
[n
- 2] == ((SSL3_CK_FALLBACK_SCSV
>> 8) & 0xff)) &&
1477 (p
[n
- 1] == (SSL3_CK_FALLBACK_SCSV
& 0xff))) {
1479 * The SCSV indicates that the client previously tried a higher
1480 * version. Fail if the current version is an unexpected
1483 if (!SSL_ctrl(s
, SSL_CTRL_CHECK_PROTO_VERSION
, 0, NULL
)) {
1484 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,
1485 SSL_R_INAPPROPRIATE_FALLBACK
);
1487 ssl3_send_alert(s
, SSL3_AL_FATAL
,
1488 SSL_AD_INAPPROPRIATE_FALLBACK
);
1495 c
= ssl_get_cipher_by_char(s
, p
);
1498 if (!sk_SSL_CIPHER_push(sk
, c
)) {
1499 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
, ERR_R_MALLOC_FAILURE
);
1509 if ((skp
== NULL
) || (*skp
== NULL
))
1510 sk_SSL_CIPHER_free(sk
);
1514 #ifndef OPENSSL_NO_TLSEXT
1515 /** return a servername extension value if provided in Client Hello, or NULL.
1516 * So far, only host_name types are defined (RFC 3546).
1519 const char *SSL_get_servername(const SSL
*s
, const int type
)
1521 if (type
!= TLSEXT_NAMETYPE_host_name
)
1524 return s
->session
&& !s
->tlsext_hostname
?
1525 s
->session
->tlsext_hostname
: s
->tlsext_hostname
;
1528 int SSL_get_servername_type(const SSL
*s
)
1531 && (!s
->tlsext_hostname
? s
->session
->
1532 tlsext_hostname
: s
->tlsext_hostname
))
1533 return TLSEXT_NAMETYPE_host_name
;
1537 # ifndef OPENSSL_NO_NEXTPROTONEG
1539 * SSL_select_next_proto implements the standard protocol selection. It is
1540 * expected that this function is called from the callback set by
1541 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
1542 * vector of 8-bit, length prefixed byte strings. The length byte itself is
1543 * not included in the length. A byte string of length 0 is invalid. No byte
1544 * string may be truncated. The current, but experimental algorithm for
1545 * selecting the protocol is: 1) If the server doesn't support NPN then this
1546 * is indicated to the callback. In this case, the client application has to
1547 * abort the connection or have a default application level protocol. 2) If
1548 * the server supports NPN, but advertises an empty list then the client
1549 * selects the first protcol in its list, but indicates via the API that this
1550 * fallback case was enacted. 3) Otherwise, the client finds the first
1551 * protocol in the server's list that it supports and selects this protocol.
1552 * This is because it's assumed that the server has better information about
1553 * which protocol a client should use. 4) If the client doesn't support any
1554 * of the server's advertised protocols, then this is treated the same as
1555 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
1556 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1558 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
1559 const unsigned char *server
,
1560 unsigned int server_len
,
1561 const unsigned char *client
,
1562 unsigned int client_len
)
1565 const unsigned char *result
;
1566 int status
= OPENSSL_NPN_UNSUPPORTED
;
1569 * For each protocol in server preference order, see if we support it.
1571 for (i
= 0; i
< server_len
;) {
1572 for (j
= 0; j
< client_len
;) {
1573 if (server
[i
] == client
[j
] &&
1574 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
1575 /* We found a match */
1576 result
= &server
[i
];
1577 status
= OPENSSL_NPN_NEGOTIATED
;
1587 /* There's no overlap between our protocols and the server's list. */
1589 status
= OPENSSL_NPN_NO_OVERLAP
;
1592 *out
= (unsigned char *)result
+ 1;
1593 *outlen
= result
[0];
1598 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
1599 * client's requested protocol for this connection and returns 0. If the
1600 * client didn't request any protocol, then *data is set to NULL. Note that
1601 * the client can request any protocol it chooses. The value returned from
1602 * this function need not be a member of the list of supported protocols
1603 * provided by the callback.
1605 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
1608 *data
= s
->next_proto_negotiated
;
1612 *len
= s
->next_proto_negotiated_len
;
1617 * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when
1618 * a TLS server needs a list of supported protocols for Next Protocol
1619 * Negotiation. The returned list must be in wire format. The list is
1620 * returned by setting |out| to point to it and |outlen| to its length. This
1621 * memory will not be modified, but one should assume that the SSL* keeps a
1622 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
1623 * wishes to advertise. Otherwise, no such extension will be included in the
1626 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX
*ctx
,
1627 int (*cb
) (SSL
*ssl
,
1630 unsigned int *outlen
,
1631 void *arg
), void *arg
)
1633 ctx
->next_protos_advertised_cb
= cb
;
1634 ctx
->next_protos_advertised_cb_arg
= arg
;
1638 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1639 * client needs to select a protocol from the server's provided list. |out|
1640 * must be set to point to the selected protocol (which may be within |in|).
1641 * The length of the protocol name must be written into |outlen|. The
1642 * server's advertised protocols are provided in |in| and |inlen|. The
1643 * callback can assume that |in| is syntactically valid. The client must
1644 * select a protocol. It is fatal to the connection if this callback returns
1645 * a value other than SSL_TLSEXT_ERR_OK.
1647 void SSL_CTX_set_next_proto_select_cb(SSL_CTX
*ctx
,
1648 int (*cb
) (SSL
*s
, unsigned char **out
,
1649 unsigned char *outlen
,
1650 const unsigned char *in
,
1652 void *arg
), void *arg
)
1654 ctx
->next_proto_select_cb
= cb
;
1655 ctx
->next_proto_select_cb_arg
= arg
;
1660 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
1661 const char *label
, size_t llen
,
1662 const unsigned char *p
, size_t plen
,
1665 if (s
->version
< TLS1_VERSION
&& s
->version
!= DTLS1_BAD_VER
)
1668 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
1673 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
1678 ((unsigned int)a
->session_id
[0]) |
1679 ((unsigned int)a
->session_id
[1] << 8L) |
1680 ((unsigned long)a
->session_id
[2] << 16L) |
1681 ((unsigned long)a
->session_id
[3] << 24L);
1686 * NB: If this function (or indeed the hash function which uses a sort of
1687 * coarser function than this one) is changed, ensure
1688 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
1689 * being able to construct an SSL_SESSION that will collide with any existing
1690 * session with a matching session ID.
1692 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
1694 if (a
->ssl_version
!= b
->ssl_version
)
1696 if (a
->session_id_length
!= b
->session_id_length
)
1698 return (memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
));
1702 * These wrapper functions should remain rather than redeclaring
1703 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1704 * variable. The reason is that the functions aren't static, they're exposed
1707 static IMPLEMENT_LHASH_HASH_FN(ssl_session
, SSL_SESSION
)
1708 static IMPLEMENT_LHASH_COMP_FN(ssl_session
, SSL_SESSION
)
1710 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
1712 SSL_CTX
*ret
= NULL
;
1715 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_NULL_SSL_METHOD_PASSED
);
1719 if (FIPS_mode() && (meth
->version
< TLS1_VERSION
)) {
1720 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE
);
1725 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
1726 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
1729 ret
= (SSL_CTX
*)OPENSSL_malloc(sizeof(SSL_CTX
));
1733 memset(ret
, 0, sizeof(SSL_CTX
));
1737 ret
->cert_store
= NULL
;
1738 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
1739 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
1740 ret
->session_cache_head
= NULL
;
1741 ret
->session_cache_tail
= NULL
;
1743 /* We take the system default */
1744 ret
->session_timeout
= meth
->get_timeout();
1746 ret
->new_session_cb
= 0;
1747 ret
->remove_session_cb
= 0;
1748 ret
->get_session_cb
= 0;
1749 ret
->generate_session_id
= 0;
1751 memset((char *)&ret
->stats
, 0, sizeof(ret
->stats
));
1753 ret
->references
= 1;
1754 ret
->quiet_shutdown
= 0;
1756 /* ret->cipher=NULL;*/
1758 ret->s2->challenge=NULL;
1759 ret->master_key=NULL;
1761 ret->s2->conn_id=NULL; */
1763 ret
->info_callback
= NULL
;
1765 ret
->app_verify_callback
= 0;
1766 ret
->app_verify_arg
= NULL
;
1768 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
1769 ret
->read_ahead
= 0;
1770 ret
->msg_callback
= 0;
1771 ret
->msg_callback_arg
= NULL
;
1772 ret
->verify_mode
= SSL_VERIFY_NONE
;
1774 ret
->verify_depth
= -1; /* Don't impose a limit (but x509_lu.c does) */
1776 ret
->sid_ctx_length
= 0;
1777 ret
->default_verify_callback
= NULL
;
1778 if ((ret
->cert
= ssl_cert_new()) == NULL
)
1781 ret
->default_passwd_callback
= 0;
1782 ret
->default_passwd_callback_userdata
= NULL
;
1783 ret
->client_cert_cb
= 0;
1784 ret
->app_gen_cookie_cb
= 0;
1785 ret
->app_verify_cookie_cb
= 0;
1787 ret
->sessions
= lh_SSL_SESSION_new();
1788 if (ret
->sessions
== NULL
)
1790 ret
->cert_store
= X509_STORE_new();
1791 if (ret
->cert_store
== NULL
)
1794 ssl_create_cipher_list(ret
->method
,
1795 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
1797 SSL2_VERSION
? "SSLv2" : SSL_DEFAULT_CIPHER_LIST
);
1798 if (ret
->cipher_list
== NULL
|| sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
1799 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
1803 ret
->param
= X509_VERIFY_PARAM_new();
1807 if ((ret
->rsa_md5
= EVP_get_digestbyname("ssl2-md5")) == NULL
) {
1808 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES
);
1811 if ((ret
->md5
= EVP_get_digestbyname("ssl3-md5")) == NULL
) {
1812 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
1815 if ((ret
->sha1
= EVP_get_digestbyname("ssl3-sha1")) == NULL
) {
1816 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
1820 if ((ret
->client_CA
= sk_X509_NAME_new_null()) == NULL
)
1823 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
);
1825 ret
->extra_certs
= NULL
;
1826 /* No compression for DTLS */
1827 if (meth
->version
!= DTLS1_VERSION
)
1828 ret
->comp_methods
= SSL_COMP_get_compression_methods();
1830 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
1832 #ifndef OPENSSL_NO_TLSEXT
1833 ret
->tlsext_servername_callback
= 0;
1834 ret
->tlsext_servername_arg
= NULL
;
1835 /* Setup RFC4507 ticket keys */
1836 if ((RAND_bytes(ret
->tlsext_tick_key_name
, 16) <= 0)
1837 || (RAND_bytes(ret
->tlsext_tick_hmac_key
, 16) <= 0)
1838 || (RAND_bytes(ret
->tlsext_tick_aes_key
, 16) <= 0))
1839 ret
->options
|= SSL_OP_NO_TICKET
;
1841 ret
->tlsext_status_cb
= 0;
1842 ret
->tlsext_status_arg
= NULL
;
1844 # ifndef OPENSSL_NO_NEXTPROTONEG
1845 ret
->next_protos_advertised_cb
= 0;
1846 ret
->next_proto_select_cb
= 0;
1849 #ifndef OPENSSL_NO_PSK
1850 ret
->psk_identity_hint
= NULL
;
1851 ret
->psk_client_callback
= NULL
;
1852 ret
->psk_server_callback
= NULL
;
1854 #ifndef OPENSSL_NO_SRP
1855 SSL_CTX_SRP_CTX_init(ret
);
1857 #ifndef OPENSSL_NO_BUF_FREELISTS
1858 ret
->freelist_max_len
= SSL_MAX_BUF_FREELIST_LEN_DEFAULT
;
1859 ret
->rbuf_freelist
= OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST
));
1860 if (!ret
->rbuf_freelist
)
1862 ret
->rbuf_freelist
->chunklen
= 0;
1863 ret
->rbuf_freelist
->len
= 0;
1864 ret
->rbuf_freelist
->head
= NULL
;
1865 ret
->wbuf_freelist
= OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST
));
1866 if (!ret
->wbuf_freelist
) {
1867 OPENSSL_free(ret
->rbuf_freelist
);
1870 ret
->wbuf_freelist
->chunklen
= 0;
1871 ret
->wbuf_freelist
->len
= 0;
1872 ret
->wbuf_freelist
->head
= NULL
;
1874 #ifndef OPENSSL_NO_ENGINE
1875 ret
->client_cert_engine
= NULL
;
1876 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1877 # define eng_strx(x) #x
1878 # define eng_str(x) eng_strx(x)
1879 /* Use specific client engine automatically... ignore errors */
1882 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
1885 ENGINE_load_builtin_engines();
1886 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
1888 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
1894 * Default is to connect to non-RI servers. When RI is more widely
1895 * deployed might change this.
1897 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
1900 * Disable SSLv2 by default, callers that want to enable SSLv2 will have to
1901 * explicitly clear this option via either of SSL_CTX_clear_options() or
1902 * SSL_clear_options().
1904 ret
->options
|= SSL_OP_NO_SSLv2
;
1908 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
1916 static void SSL_COMP_free(SSL_COMP
*comp
)
1922 #ifndef OPENSSL_NO_BUF_FREELISTS
1923 static void ssl_buf_freelist_free(SSL3_BUF_FREELIST
*list
)
1925 SSL3_BUF_FREELIST_ENTRY
*ent
, *next
;
1926 for (ent
= list
->head
; ent
; ent
= next
) {
1934 void SSL_CTX_free(SSL_CTX
*a
)
1941 i
= CRYPTO_add(&a
->references
, -1, CRYPTO_LOCK_SSL_CTX
);
1943 REF_PRINT("SSL_CTX", a
);
1949 fprintf(stderr
, "SSL_CTX_free, bad reference count\n");
1955 X509_VERIFY_PARAM_free(a
->param
);
1958 * Free internal session cache. However: the remove_cb() may reference
1959 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1960 * after the sessions were flushed.
1961 * As the ex_data handling routines might also touch the session cache,
1962 * the most secure solution seems to be: empty (flush) the cache, then
1963 * free ex_data, then finally free the cache.
1964 * (See ticket [openssl.org #212].)
1966 if (a
->sessions
!= NULL
)
1967 SSL_CTX_flush_sessions(a
, 0);
1969 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
1971 if (a
->sessions
!= NULL
)
1972 lh_SSL_SESSION_free(a
->sessions
);
1974 if (a
->cert_store
!= NULL
)
1975 X509_STORE_free(a
->cert_store
);
1976 if (a
->cipher_list
!= NULL
)
1977 sk_SSL_CIPHER_free(a
->cipher_list
);
1978 if (a
->cipher_list_by_id
!= NULL
)
1979 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
1980 if (a
->cert
!= NULL
)
1981 ssl_cert_free(a
->cert
);
1982 if (a
->client_CA
!= NULL
)
1983 sk_X509_NAME_pop_free(a
->client_CA
, X509_NAME_free
);
1984 if (a
->extra_certs
!= NULL
)
1985 sk_X509_pop_free(a
->extra_certs
, X509_free
);
1986 #if 0 /* This should never be done, since it
1987 * removes a global database */
1988 if (a
->comp_methods
!= NULL
)
1989 sk_SSL_COMP_pop_free(a
->comp_methods
, SSL_COMP_free
);
1991 a
->comp_methods
= NULL
;
1994 #ifndef OPENSSL_NO_SRTP
1995 if (a
->srtp_profiles
)
1996 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
1999 #ifndef OPENSSL_NO_PSK
2000 if (a
->psk_identity_hint
)
2001 OPENSSL_free(a
->psk_identity_hint
);
2003 #ifndef OPENSSL_NO_SRP
2004 SSL_CTX_SRP_CTX_free(a
);
2006 #ifndef OPENSSL_NO_ENGINE
2007 if (a
->client_cert_engine
)
2008 ENGINE_finish(a
->client_cert_engine
);
2011 #ifndef OPENSSL_NO_BUF_FREELISTS
2012 if (a
->wbuf_freelist
)
2013 ssl_buf_freelist_free(a
->wbuf_freelist
);
2014 if (a
->rbuf_freelist
)
2015 ssl_buf_freelist_free(a
->rbuf_freelist
);
2021 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
2023 ctx
->default_passwd_callback
= cb
;
2026 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
2028 ctx
->default_passwd_callback_userdata
= u
;
2031 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
2032 int (*cb
) (X509_STORE_CTX
*, void *),
2035 ctx
->app_verify_callback
= cb
;
2036 ctx
->app_verify_arg
= arg
;
2039 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
2040 int (*cb
) (int, X509_STORE_CTX
*))
2042 ctx
->verify_mode
= mode
;
2043 ctx
->default_verify_callback
= cb
;
2046 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
2048 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
2051 void ssl_set_cert_masks(CERT
*c
, const SSL_CIPHER
*cipher
)
2054 int rsa_enc
, rsa_tmp
, rsa_sign
, dh_tmp
, dh_rsa
, dh_dsa
, dsa_sign
;
2055 int rsa_enc_export
, dh_rsa_export
, dh_dsa_export
;
2056 int rsa_tmp_export
, dh_tmp_export
, kl
;
2057 unsigned long mask_k
, mask_a
, emask_k
, emask_a
;
2058 #ifndef OPENSSL_NO_ECDSA
2059 int have_ecc_cert
, ecdsa_ok
, ecc_pkey_size
;
2061 #ifndef OPENSSL_NO_ECDH
2062 int have_ecdh_tmp
, ecdh_ok
;
2064 #ifndef OPENSSL_NO_EC
2066 EVP_PKEY
*ecc_pkey
= NULL
;
2067 int signature_nid
= 0, pk_nid
= 0, md_nid
= 0;
2072 kl
= SSL_C_EXPORT_PKEYLENGTH(cipher
);
2074 #ifndef OPENSSL_NO_RSA
2075 rsa_tmp
= (c
->rsa_tmp
!= NULL
|| c
->rsa_tmp_cb
!= NULL
);
2076 rsa_tmp_export
= (c
->rsa_tmp_cb
!= NULL
||
2077 (rsa_tmp
&& RSA_size(c
->rsa_tmp
) * 8 <= kl
));
2079 rsa_tmp
= rsa_tmp_export
= 0;
2081 #ifndef OPENSSL_NO_DH
2082 dh_tmp
= (c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
);
2083 dh_tmp_export
= (c
->dh_tmp_cb
!= NULL
||
2084 (dh_tmp
&& DH_size(c
->dh_tmp
) * 8 <= kl
));
2086 dh_tmp
= dh_tmp_export
= 0;
2089 #ifndef OPENSSL_NO_ECDH
2090 have_ecdh_tmp
= (c
->ecdh_tmp
!= NULL
|| c
->ecdh_tmp_cb
!= NULL
);
2092 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_ENC
]);
2093 rsa_enc
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
2094 rsa_enc_export
= (rsa_enc
&& EVP_PKEY_size(cpk
->privatekey
) * 8 <= kl
);
2095 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_SIGN
]);
2096 rsa_sign
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
2097 cpk
= &(c
->pkeys
[SSL_PKEY_DSA_SIGN
]);
2098 dsa_sign
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
2099 cpk
= &(c
->pkeys
[SSL_PKEY_DH_RSA
]);
2100 dh_rsa
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
2101 dh_rsa_export
= (dh_rsa
&& EVP_PKEY_size(cpk
->privatekey
) * 8 <= kl
);
2102 cpk
= &(c
->pkeys
[SSL_PKEY_DH_DSA
]);
2103 /* FIX THIS EAY EAY EAY */
2104 dh_dsa
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
2105 dh_dsa_export
= (dh_dsa
&& EVP_PKEY_size(cpk
->privatekey
) * 8 <= kl
);
2106 cpk
= &(c
->pkeys
[SSL_PKEY_ECC
]);
2107 #ifndef OPENSSL_NO_EC
2108 have_ecc_cert
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
2117 "rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2118 rsa_tmp
, rsa_tmp_export
, dh_tmp
, have_ecdh_tmp
, rsa_enc
,
2119 rsa_enc_export
, rsa_sign
, dsa_sign
, dh_rsa
, dh_dsa
);
2122 cpk
= &(c
->pkeys
[SSL_PKEY_GOST01
]);
2123 if (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
) {
2124 mask_k
|= SSL_kGOST
;
2125 mask_a
|= SSL_aGOST01
;
2127 cpk
= &(c
->pkeys
[SSL_PKEY_GOST94
]);
2128 if (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
) {
2129 mask_k
|= SSL_kGOST
;
2130 mask_a
|= SSL_aGOST94
;
2133 if (rsa_enc
|| (rsa_tmp
&& rsa_sign
))
2135 if (rsa_enc_export
|| (rsa_tmp_export
&& (rsa_sign
|| rsa_enc
)))
2136 emask_k
|= SSL_kRSA
;
2139 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
2140 if ((dh_tmp
|| dh_rsa
|| dh_dsa
) && (rsa_enc
|| rsa_sign
|| dsa_sign
))
2142 if ((dh_tmp_export
|| dh_rsa_export
|| dh_dsa_export
) &&
2143 (rsa_enc
|| rsa_sign
|| dsa_sign
))
2144 emask_k
|= SSL_kEDH
;
2148 emask_k
|= SSL_kEDH
;
2156 emask_k
|= SSL_kDHr
;
2161 emask_k
|= SSL_kDHd
;
2163 if (rsa_enc
|| rsa_sign
) {
2165 emask_a
|= SSL_aRSA
;
2170 emask_a
|= SSL_aDSS
;
2173 mask_a
|= SSL_aNULL
;
2174 emask_a
|= SSL_aNULL
;
2176 #ifndef OPENSSL_NO_KRB5
2177 mask_k
|= SSL_kKRB5
;
2178 mask_a
|= SSL_aKRB5
;
2179 emask_k
|= SSL_kKRB5
;
2180 emask_a
|= SSL_aKRB5
;
2184 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
2185 * depending on the key usage extension.
2187 #ifndef OPENSSL_NO_EC
2188 if (have_ecc_cert
) {
2189 /* This call populates extension flags (ex_flags) */
2190 x
= (c
->pkeys
[SSL_PKEY_ECC
]).x509
;
2191 X509_check_purpose(x
, -1, 0);
2192 ecdh_ok
= (x
->ex_flags
& EXFLAG_KUSAGE
) ?
2193 (x
->ex_kusage
& X509v3_KU_KEY_AGREEMENT
) : 1;
2194 ecdsa_ok
= (x
->ex_flags
& EXFLAG_KUSAGE
) ?
2195 (x
->ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
) : 1;
2196 ecc_pkey
= X509_get_pubkey(x
);
2197 ecc_pkey_size
= (ecc_pkey
!= NULL
) ? EVP_PKEY_bits(ecc_pkey
) : 0;
2198 EVP_PKEY_free(ecc_pkey
);
2199 if ((x
->sig_alg
) && (x
->sig_alg
->algorithm
)) {
2200 signature_nid
= OBJ_obj2nid(x
->sig_alg
->algorithm
);
2201 OBJ_find_sigid_algs(signature_nid
, &md_nid
, &pk_nid
);
2203 #ifndef OPENSSL_NO_ECDH
2206 if (pk_nid
== NID_rsaEncryption
|| pk_nid
== NID_rsa
) {
2207 mask_k
|= SSL_kECDHr
;
2208 mask_a
|= SSL_aECDH
;
2209 if (ecc_pkey_size
<= 163) {
2210 emask_k
|= SSL_kECDHr
;
2211 emask_a
|= SSL_aECDH
;
2215 if (pk_nid
== NID_X9_62_id_ecPublicKey
) {
2216 mask_k
|= SSL_kECDHe
;
2217 mask_a
|= SSL_aECDH
;
2218 if (ecc_pkey_size
<= 163) {
2219 emask_k
|= SSL_kECDHe
;
2220 emask_a
|= SSL_aECDH
;
2225 #ifndef OPENSSL_NO_ECDSA
2227 mask_a
|= SSL_aECDSA
;
2228 emask_a
|= SSL_aECDSA
;
2233 #ifndef OPENSSL_NO_ECDH
2234 if (have_ecdh_tmp
) {
2235 mask_k
|= SSL_kEECDH
;
2236 emask_k
|= SSL_kEECDH
;
2240 #ifndef OPENSSL_NO_PSK
2243 emask_k
|= SSL_kPSK
;
2244 emask_a
|= SSL_aPSK
;
2249 c
->export_mask_k
= emask_k
;
2250 c
->export_mask_a
= emask_a
;
2254 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2255 #define ku_reject(x, usage) \
2256 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2258 #ifndef OPENSSL_NO_EC
2260 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
2262 unsigned long alg_k
, alg_a
;
2263 EVP_PKEY
*pkey
= NULL
;
2265 int signature_nid
= 0, md_nid
= 0, pk_nid
= 0;
2266 const SSL_CIPHER
*cs
= s
->s3
->tmp
.new_cipher
;
2268 alg_k
= cs
->algorithm_mkey
;
2269 alg_a
= cs
->algorithm_auth
;
2271 if (SSL_C_IS_EXPORT(cs
)) {
2272 /* ECDH key length in export ciphers must be <= 163 bits */
2273 pkey
= X509_get_pubkey(x
);
2276 keysize
= EVP_PKEY_bits(pkey
);
2277 EVP_PKEY_free(pkey
);
2282 /* This call populates the ex_flags field correctly */
2283 X509_check_purpose(x
, -1, 0);
2284 if ((x
->sig_alg
) && (x
->sig_alg
->algorithm
)) {
2285 signature_nid
= OBJ_obj2nid(x
->sig_alg
->algorithm
);
2286 OBJ_find_sigid_algs(signature_nid
, &md_nid
, &pk_nid
);
2288 if (alg_k
& SSL_kECDHe
|| alg_k
& SSL_kECDHr
) {
2289 /* key usage, if present, must allow key agreement */
2290 if (ku_reject(x
, X509v3_KU_KEY_AGREEMENT
)) {
2291 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2292 SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT
);
2295 if ((alg_k
& SSL_kECDHe
) && TLS1_get_version(s
) < TLS1_2_VERSION
) {
2296 /* signature alg must be ECDSA */
2297 if (pk_nid
!= NID_X9_62_id_ecPublicKey
) {
2298 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2299 SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE
);
2303 if ((alg_k
& SSL_kECDHr
) && TLS1_get_version(s
) < TLS1_2_VERSION
) {
2304 /* signature alg must be RSA */
2306 if (pk_nid
!= NID_rsaEncryption
&& pk_nid
!= NID_rsa
) {
2307 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2308 SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE
);
2313 if (alg_a
& SSL_aECDSA
) {
2314 /* key usage, if present, must allow signing */
2315 if (ku_reject(x
, X509v3_KU_DIGITAL_SIGNATURE
)) {
2316 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2317 SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
2322 return 1; /* all checks are ok */
2327 /* THIS NEEDS CLEANING UP */
2328 CERT_PKEY
*ssl_get_server_send_pkey(const SSL
*s
)
2330 unsigned long alg_k
, alg_a
;
2335 ssl_set_cert_masks(c
, s
->s3
->tmp
.new_cipher
);
2337 alg_k
= s
->s3
->tmp
.new_cipher
->algorithm_mkey
;
2338 alg_a
= s
->s3
->tmp
.new_cipher
->algorithm_auth
;
2340 if (alg_k
& (SSL_kECDHr
| SSL_kECDHe
)) {
2342 * we don't need to look at SSL_kEECDH since no certificate is needed
2343 * for anon ECDH and for authenticated EECDH, the check for the auth
2344 * algorithm will set i correctly NOTE: For ECDH-RSA, we need an ECC
2345 * not an RSA cert but for EECDH-RSA we need an RSA cert. Placing the
2346 * checks for SSL_kECDH before RSA checks ensures the correct cert is
2350 } else if (alg_a
& SSL_aECDSA
) {
2352 } else if (alg_k
& SSL_kDHr
)
2353 i
= SSL_PKEY_DH_RSA
;
2354 else if (alg_k
& SSL_kDHd
)
2355 i
= SSL_PKEY_DH_DSA
;
2356 else if (alg_a
& SSL_aDSS
)
2357 i
= SSL_PKEY_DSA_SIGN
;
2358 else if (alg_a
& SSL_aRSA
) {
2359 if (c
->pkeys
[SSL_PKEY_RSA_ENC
].x509
== NULL
)
2360 i
= SSL_PKEY_RSA_SIGN
;
2362 i
= SSL_PKEY_RSA_ENC
;
2363 } else if (alg_a
& SSL_aKRB5
) {
2364 /* VRS something else here? */
2366 } else if (alg_a
& SSL_aGOST94
)
2367 i
= SSL_PKEY_GOST94
;
2368 else if (alg_a
& SSL_aGOST01
)
2369 i
= SSL_PKEY_GOST01
;
2370 else { /* if (alg_a & SSL_aNULL) */
2372 SSLerr(SSL_F_SSL_GET_SERVER_SEND_PKEY
, ERR_R_INTERNAL_ERROR
);
2376 return c
->pkeys
+ i
;
2379 X509
*ssl_get_server_send_cert(const SSL
*s
)
2382 cpk
= ssl_get_server_send_pkey(s
);
2388 EVP_PKEY
*ssl_get_sign_pkey(SSL
*s
, const SSL_CIPHER
*cipher
,
2391 unsigned long alg_a
;
2395 alg_a
= cipher
->algorithm_auth
;
2398 if ((alg_a
& SSL_aDSS
) &&
2399 (c
->pkeys
[SSL_PKEY_DSA_SIGN
].privatekey
!= NULL
))
2400 idx
= SSL_PKEY_DSA_SIGN
;
2401 else if (alg_a
& SSL_aRSA
) {
2402 if (c
->pkeys
[SSL_PKEY_RSA_SIGN
].privatekey
!= NULL
)
2403 idx
= SSL_PKEY_RSA_SIGN
;
2404 else if (c
->pkeys
[SSL_PKEY_RSA_ENC
].privatekey
!= NULL
)
2405 idx
= SSL_PKEY_RSA_ENC
;
2406 } else if ((alg_a
& SSL_aECDSA
) &&
2407 (c
->pkeys
[SSL_PKEY_ECC
].privatekey
!= NULL
))
2410 SSLerr(SSL_F_SSL_GET_SIGN_PKEY
, ERR_R_INTERNAL_ERROR
);
2414 *pmd
= c
->pkeys
[idx
].digest
;
2415 return c
->pkeys
[idx
].privatekey
;
2418 void ssl_update_cache(SSL
*s
, int mode
)
2423 * If the session_id_length is 0, we are not supposed to cache it, and it
2424 * would be rather hard to do anyway :-)
2426 if (s
->session
->session_id_length
== 0)
2429 i
= s
->session_ctx
->session_cache_mode
;
2430 if ((i
& mode
) && (!s
->hit
)
2431 && ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
)
2432 || SSL_CTX_add_session(s
->session_ctx
, s
->session
))
2433 && (s
->session_ctx
->new_session_cb
!= NULL
)) {
2434 CRYPTO_add(&s
->session
->references
, 1, CRYPTO_LOCK_SSL_SESSION
);
2435 if (!s
->session_ctx
->new_session_cb(s
, s
->session
))
2436 SSL_SESSION_free(s
->session
);
2439 /* auto flush every 255 connections */
2440 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
2441 if ((((mode
& SSL_SESS_CACHE_CLIENT
)
2442 ? s
->session_ctx
->stats
.sess_connect_good
2443 : s
->session_ctx
->stats
.sess_accept_good
) & 0xff) == 0xff) {
2444 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
2449 const SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
2454 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
2459 if (s
->method
!= meth
) {
2460 if (s
->handshake_func
!= NULL
)
2461 conn
= (s
->handshake_func
== s
->method
->ssl_connect
);
2463 if (s
->method
->version
== meth
->version
)
2466 s
->method
->ssl_free(s
);
2468 ret
= s
->method
->ssl_new(s
);
2472 s
->handshake_func
= meth
->ssl_connect
;
2474 s
->handshake_func
= meth
->ssl_accept
;
2479 int SSL_get_error(const SSL
*s
, int i
)
2486 return (SSL_ERROR_NONE
);
2489 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
2490 * where we do encode the error
2492 if ((l
= ERR_peek_error()) != 0) {
2493 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
2494 return (SSL_ERROR_SYSCALL
);
2496 return (SSL_ERROR_SSL
);
2499 if ((i
< 0) && SSL_want_read(s
)) {
2500 bio
= SSL_get_rbio(s
);
2501 if (BIO_should_read(bio
))
2502 return (SSL_ERROR_WANT_READ
);
2503 else if (BIO_should_write(bio
))
2505 * This one doesn't make too much sense ... We never try to write
2506 * to the rbio, and an application program where rbio and wbio
2507 * are separate couldn't even know what it should wait for.
2508 * However if we ever set s->rwstate incorrectly (so that we have
2509 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
2510 * wbio *are* the same, this test works around that bug; so it
2511 * might be safer to keep it.
2513 return (SSL_ERROR_WANT_WRITE
);
2514 else if (BIO_should_io_special(bio
)) {
2515 reason
= BIO_get_retry_reason(bio
);
2516 if (reason
== BIO_RR_CONNECT
)
2517 return (SSL_ERROR_WANT_CONNECT
);
2518 else if (reason
== BIO_RR_ACCEPT
)
2519 return (SSL_ERROR_WANT_ACCEPT
);
2521 return (SSL_ERROR_SYSCALL
); /* unknown */
2525 if ((i
< 0) && SSL_want_write(s
)) {
2526 bio
= SSL_get_wbio(s
);
2527 if (BIO_should_write(bio
))
2528 return (SSL_ERROR_WANT_WRITE
);
2529 else if (BIO_should_read(bio
))
2531 * See above (SSL_want_read(s) with BIO_should_write(bio))
2533 return (SSL_ERROR_WANT_READ
);
2534 else if (BIO_should_io_special(bio
)) {
2535 reason
= BIO_get_retry_reason(bio
);
2536 if (reason
== BIO_RR_CONNECT
)
2537 return (SSL_ERROR_WANT_CONNECT
);
2538 else if (reason
== BIO_RR_ACCEPT
)
2539 return (SSL_ERROR_WANT_ACCEPT
);
2541 return (SSL_ERROR_SYSCALL
);
2544 if ((i
< 0) && SSL_want_x509_lookup(s
)) {
2545 return (SSL_ERROR_WANT_X509_LOOKUP
);
2549 if (s
->version
== SSL2_VERSION
) {
2550 /* assume it is the socket being closed */
2551 return (SSL_ERROR_ZERO_RETURN
);
2553 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
2554 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
2555 return (SSL_ERROR_ZERO_RETURN
);
2558 return (SSL_ERROR_SYSCALL
);
2561 int SSL_do_handshake(SSL
*s
)
2565 if (s
->handshake_func
== NULL
) {
2566 SSLerr(SSL_F_SSL_DO_HANDSHAKE
, SSL_R_CONNECTION_TYPE_NOT_SET
);
2570 s
->method
->ssl_renegotiate_check(s
);
2572 if (SSL_in_init(s
) || SSL_in_before(s
)) {
2573 ret
= s
->handshake_func(s
);
2579 * For the next 2 functions, SSL_clear() sets shutdown and so one of these
2580 * calls will reset it
2582 void SSL_set_accept_state(SSL
*s
)
2586 s
->state
= SSL_ST_ACCEPT
| SSL_ST_BEFORE
;
2587 s
->handshake_func
= s
->method
->ssl_accept
;
2588 /* clear the current cipher */
2589 ssl_clear_cipher_ctx(s
);
2590 ssl_clear_hash_ctx(&s
->read_hash
);
2591 ssl_clear_hash_ctx(&s
->write_hash
);
2594 void SSL_set_connect_state(SSL
*s
)
2598 s
->state
= SSL_ST_CONNECT
| SSL_ST_BEFORE
;
2599 s
->handshake_func
= s
->method
->ssl_connect
;
2600 /* clear the current cipher */
2601 ssl_clear_cipher_ctx(s
);
2602 ssl_clear_hash_ctx(&s
->read_hash
);
2603 ssl_clear_hash_ctx(&s
->write_hash
);
2606 int ssl_undefined_function(SSL
*s
)
2608 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2612 int ssl_undefined_void_function(void)
2614 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,
2615 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2619 int ssl_undefined_const_function(const SSL
*s
)
2621 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION
,
2622 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2626 SSL_METHOD
*ssl_bad_method(int ver
)
2628 SSLerr(SSL_F_SSL_BAD_METHOD
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2632 const char *SSL_get_version(const SSL
*s
)
2634 if (s
->version
== TLS1_2_VERSION
)
2636 else if (s
->version
== TLS1_1_VERSION
)
2638 else if (s
->version
== TLS1_VERSION
)
2640 else if (s
->version
== SSL3_VERSION
)
2642 else if (s
->version
== SSL2_VERSION
)
2648 SSL
*SSL_dup(SSL
*s
)
2650 STACK_OF(X509_NAME
) *sk
;
2655 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
2658 ret
->version
= s
->version
;
2659 ret
->type
= s
->type
;
2660 ret
->method
= s
->method
;
2662 if (s
->session
!= NULL
) {
2663 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2664 SSL_copy_session_id(ret
, s
);
2667 * No session has been established yet, so we have to expect that
2668 * s->cert or ret->cert will be changed later -- they should not both
2669 * point to the same object, and thus we can't use
2670 * SSL_copy_session_id.
2673 ret
->method
->ssl_free(ret
);
2674 ret
->method
= s
->method
;
2675 ret
->method
->ssl_new(ret
);
2677 if (s
->cert
!= NULL
) {
2678 if (ret
->cert
!= NULL
) {
2679 ssl_cert_free(ret
->cert
);
2681 ret
->cert
= ssl_cert_dup(s
->cert
);
2682 if (ret
->cert
== NULL
)
2686 SSL_set_session_id_context(ret
, s
->sid_ctx
, s
->sid_ctx_length
);
2689 ret
->options
= s
->options
;
2690 ret
->mode
= s
->mode
;
2691 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
2692 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
2693 ret
->msg_callback
= s
->msg_callback
;
2694 ret
->msg_callback_arg
= s
->msg_callback_arg
;
2695 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
2696 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
2697 ret
->generate_session_id
= s
->generate_session_id
;
2699 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
2701 ret
->debug
= s
->debug
;
2703 /* copy app data, a little dangerous perhaps */
2704 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
2707 /* setup rbio, and wbio */
2708 if (s
->rbio
!= NULL
) {
2709 if (!BIO_dup_state(s
->rbio
, (char *)&ret
->rbio
))
2712 if (s
->wbio
!= NULL
) {
2713 if (s
->wbio
!= s
->rbio
) {
2714 if (!BIO_dup_state(s
->wbio
, (char *)&ret
->wbio
))
2717 ret
->wbio
= ret
->rbio
;
2719 ret
->rwstate
= s
->rwstate
;
2720 ret
->in_handshake
= s
->in_handshake
;
2721 ret
->handshake_func
= s
->handshake_func
;
2722 ret
->server
= s
->server
;
2723 ret
->renegotiate
= s
->renegotiate
;
2724 ret
->new_session
= s
->new_session
;
2725 ret
->quiet_shutdown
= s
->quiet_shutdown
;
2726 ret
->shutdown
= s
->shutdown
;
2727 ret
->state
= s
->state
; /* SSL_dup does not really work at any state,
2729 ret
->rstate
= s
->rstate
;
2730 ret
->init_num
= 0; /* would have to copy ret->init_buf,
2731 * ret->init_msg, ret->init_num,
2735 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
2737 /* dup the cipher_list and cipher_list_by_id stacks */
2738 if (s
->cipher_list
!= NULL
) {
2739 if ((ret
->cipher_list
= sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
2742 if (s
->cipher_list_by_id
!= NULL
)
2743 if ((ret
->cipher_list_by_id
= sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
2747 /* Dup the client_CA list */
2748 if (s
->client_CA
!= NULL
) {
2749 if ((sk
= sk_X509_NAME_dup(s
->client_CA
)) == NULL
)
2751 ret
->client_CA
= sk
;
2752 for (i
= 0; i
< sk_X509_NAME_num(sk
); i
++) {
2753 xn
= sk_X509_NAME_value(sk
, i
);
2754 if (sk_X509_NAME_set(sk
, i
, X509_NAME_dup(xn
)) == NULL
) {
2770 void ssl_clear_cipher_ctx(SSL
*s
)
2772 if (s
->enc_read_ctx
!= NULL
) {
2773 EVP_CIPHER_CTX_cleanup(s
->enc_read_ctx
);
2774 OPENSSL_free(s
->enc_read_ctx
);
2775 s
->enc_read_ctx
= NULL
;
2777 if (s
->enc_write_ctx
!= NULL
) {
2778 EVP_CIPHER_CTX_cleanup(s
->enc_write_ctx
);
2779 OPENSSL_free(s
->enc_write_ctx
);
2780 s
->enc_write_ctx
= NULL
;
2782 #ifndef OPENSSL_NO_COMP
2783 if (s
->expand
!= NULL
) {
2784 COMP_CTX_free(s
->expand
);
2787 if (s
->compress
!= NULL
) {
2788 COMP_CTX_free(s
->compress
);
2794 /* Fix this function so that it takes an optional type parameter */
2795 X509
*SSL_get_certificate(const SSL
*s
)
2797 if (s
->cert
!= NULL
)
2798 return (s
->cert
->key
->x509
);
2803 /* Fix this function so that it takes an optional type parameter */
2804 EVP_PKEY
*SSL_get_privatekey(SSL
*s
)
2806 if (s
->cert
!= NULL
)
2807 return (s
->cert
->key
->privatekey
);
2812 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
2814 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
2815 return (s
->session
->cipher
);
2819 #ifdef OPENSSL_NO_COMP
2820 const void *SSL_get_current_compression(SSL
*s
)
2825 const void *SSL_get_current_expansion(SSL
*s
)
2831 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
2833 if (s
->compress
!= NULL
)
2834 return (s
->compress
->meth
);
2838 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
2840 if (s
->expand
!= NULL
)
2841 return (s
->expand
->meth
);
2846 int ssl_init_wbio_buffer(SSL
*s
, int push
)
2850 if (s
->bbio
== NULL
) {
2851 bbio
= BIO_new(BIO_f_buffer());
2857 if (s
->bbio
== s
->wbio
)
2858 s
->wbio
= BIO_pop(s
->wbio
);
2860 (void)BIO_reset(bbio
);
2861 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2862 if (!BIO_set_read_buffer_size(bbio
, 1)) {
2863 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
, ERR_R_BUF_LIB
);
2867 if (s
->wbio
!= bbio
)
2868 s
->wbio
= BIO_push(bbio
, s
->wbio
);
2870 if (s
->wbio
== bbio
)
2871 s
->wbio
= BIO_pop(bbio
);
2876 void ssl_free_wbio_buffer(SSL
*s
)
2878 if (s
->bbio
== NULL
)
2881 if (s
->bbio
== s
->wbio
) {
2882 /* remove buffering */
2883 s
->wbio
= BIO_pop(s
->wbio
);
2884 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids
2885 * adding one more preprocessor symbol */
2886 assert(s
->wbio
!= NULL
);
2893 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
2895 ctx
->quiet_shutdown
= mode
;
2898 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
2900 return (ctx
->quiet_shutdown
);
2903 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
2905 s
->quiet_shutdown
= mode
;
2908 int SSL_get_quiet_shutdown(const SSL
*s
)
2910 return (s
->quiet_shutdown
);
2913 void SSL_set_shutdown(SSL
*s
, int mode
)
2918 int SSL_get_shutdown(const SSL
*s
)
2920 return (s
->shutdown
);
2923 int SSL_version(const SSL
*s
)
2925 return (s
->version
);
2928 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
2933 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
2935 CERT
*ocert
= ssl
->cert
;
2936 if (ssl
->ctx
== ctx
)
2938 #ifndef OPENSSL_NO_TLSEXT
2940 ctx
= ssl
->initial_ctx
;
2942 ssl
->cert
= ssl_cert_dup(ctx
->cert
);
2943 if (ocert
!= NULL
) {
2945 /* Copy negotiated digests from original */
2946 for (i
= 0; i
< SSL_PKEY_NUM
; i
++) {
2947 CERT_PKEY
*cpk
= ocert
->pkeys
+ i
;
2948 CERT_PKEY
*rpk
= ssl
->cert
->pkeys
+ i
;
2949 rpk
->digest
= cpk
->digest
;
2951 ssl_cert_free(ocert
);
2955 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
2956 * so setter APIs must prevent invalid lengths from entering the system.
2958 OPENSSL_assert(ssl
->sid_ctx_length
<= sizeof(ssl
->sid_ctx
));
2961 * If the session ID context matches that of the parent SSL_CTX,
2962 * inherit it from the new SSL_CTX as well. If however the context does
2963 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
2964 * leave it unchanged.
2966 if ((ssl
->ctx
!= NULL
) &&
2967 (ssl
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
2968 (memcmp(ssl
->sid_ctx
, ssl
->ctx
->sid_ctx
, ssl
->sid_ctx_length
) == 0)) {
2969 ssl
->sid_ctx_length
= ctx
->sid_ctx_length
;
2970 memcpy(&ssl
->sid_ctx
, &ctx
->sid_ctx
, sizeof(ssl
->sid_ctx
));
2973 CRYPTO_add(&ctx
->references
, 1, CRYPTO_LOCK_SSL_CTX
);
2974 if (ssl
->ctx
!= NULL
)
2975 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
2981 #ifndef OPENSSL_NO_STDIO
2982 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
2984 return (X509_STORE_set_default_paths(ctx
->cert_store
));
2987 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
2990 return (X509_STORE_load_locations(ctx
->cert_store
, CAfile
, CApath
));
2994 void SSL_set_info_callback(SSL
*ssl
,
2995 void (*cb
) (const SSL
*ssl
, int type
, int val
))
2997 ssl
->info_callback
= cb
;
3001 * One compiler (Diab DCC) doesn't like argument names in returned function
3004 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
3007 return ssl
->info_callback
;
3010 int SSL_state(const SSL
*ssl
)
3012 return (ssl
->state
);
3015 void SSL_set_state(SSL
*ssl
, int state
)
3020 void SSL_set_verify_result(SSL
*ssl
, long arg
)
3022 ssl
->verify_result
= arg
;
3025 long SSL_get_verify_result(const SSL
*ssl
)
3027 return (ssl
->verify_result
);
3030 int SSL_get_ex_new_index(long argl
, void *argp
, CRYPTO_EX_new
*new_func
,
3031 CRYPTO_EX_dup
*dup_func
, CRYPTO_EX_free
*free_func
)
3033 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL
, argl
, argp
,
3034 new_func
, dup_func
, free_func
);
3037 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
3039 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
3042 void *SSL_get_ex_data(const SSL
*s
, int idx
)
3044 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
3047 int SSL_CTX_get_ex_new_index(long argl
, void *argp
, CRYPTO_EX_new
*new_func
,
3048 CRYPTO_EX_dup
*dup_func
,
3049 CRYPTO_EX_free
*free_func
)
3051 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX
, argl
, argp
,
3052 new_func
, dup_func
, free_func
);
3055 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
3057 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
3060 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
3062 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
3070 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
3072 return (ctx
->cert_store
);
3075 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
3077 if (ctx
->cert_store
!= NULL
)
3078 X509_STORE_free(ctx
->cert_store
);
3079 ctx
->cert_store
= store
;
3082 int SSL_want(const SSL
*s
)
3084 return (s
->rwstate
);
3088 * \brief Set the callback for generating temporary RSA keys.
3089 * \param ctx the SSL context.
3090 * \param cb the callback
3093 #ifndef OPENSSL_NO_RSA
3094 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX
*ctx
, RSA
*(*cb
) (SSL
*ssl
,
3098 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_RSA_CB
, (void (*)(void))cb
);
3101 void SSL_set_tmp_rsa_callback(SSL
*ssl
, RSA
*(*cb
) (SSL
*ssl
,
3105 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_RSA_CB
, (void (*)(void))cb
);
3111 * \brief The RSA temporary key callback function.
3112 * \param ssl the SSL session.
3113 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3114 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3115 * of the required key in bits.
3116 * \return the temporary RSA key.
3117 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3120 RSA
*cb(SSL
*ssl
, int is_export
, int keylength
)
3126 * \brief Set the callback for generating temporary DH keys.
3127 * \param ctx the SSL context.
3128 * \param dh the callback
3131 #ifndef OPENSSL_NO_DH
3132 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,
3133 DH
*(*dh
) (SSL
*ssl
, int is_export
,
3136 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
3139 void SSL_set_tmp_dh_callback(SSL
*ssl
, DH
*(*dh
) (SSL
*ssl
, int is_export
,
3142 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
3146 #ifndef OPENSSL_NO_ECDH
3147 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX
*ctx
,
3148 EC_KEY
*(*ecdh
) (SSL
*ssl
, int is_export
,
3151 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_ECDH_CB
,
3152 (void (*)(void))ecdh
);
3155 void SSL_set_tmp_ecdh_callback(SSL
*ssl
,
3156 EC_KEY
*(*ecdh
) (SSL
*ssl
, int is_export
,
3159 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_ECDH_CB
, (void (*)(void))ecdh
);
3163 #ifndef OPENSSL_NO_PSK
3164 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
3166 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3167 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
,
3168 SSL_R_DATA_LENGTH_TOO_LONG
);
3171 if (ctx
->psk_identity_hint
!= NULL
)
3172 OPENSSL_free(ctx
->psk_identity_hint
);
3173 if (identity_hint
!= NULL
) {
3174 ctx
->psk_identity_hint
= BUF_strdup(identity_hint
);
3175 if (ctx
->psk_identity_hint
== NULL
)
3178 ctx
->psk_identity_hint
= NULL
;
3182 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
3187 if (s
->session
== NULL
)
3188 return 1; /* session not created yet, ignored */
3190 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3191 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
3194 if (s
->session
->psk_identity_hint
!= NULL
)
3195 OPENSSL_free(s
->session
->psk_identity_hint
);
3196 if (identity_hint
!= NULL
) {
3197 s
->session
->psk_identity_hint
= BUF_strdup(identity_hint
);
3198 if (s
->session
->psk_identity_hint
== NULL
)
3201 s
->session
->psk_identity_hint
= NULL
;
3205 const char *SSL_get_psk_identity_hint(const SSL
*s
)
3207 if (s
== NULL
|| s
->session
== NULL
)
3209 return (s
->session
->psk_identity_hint
);
3212 const char *SSL_get_psk_identity(const SSL
*s
)
3214 if (s
== NULL
|| s
->session
== NULL
)
3216 return (s
->session
->psk_identity
);
3219 void SSL_set_psk_client_callback(SSL
*s
,
3220 unsigned int (*cb
) (SSL
*ssl
,
3229 s
->psk_client_callback
= cb
;
3232 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
,
3233 unsigned int (*cb
) (SSL
*ssl
,
3242 ctx
->psk_client_callback
= cb
;
3245 void SSL_set_psk_server_callback(SSL
*s
,
3246 unsigned int (*cb
) (SSL
*ssl
,
3247 const char *identity
,
3252 s
->psk_server_callback
= cb
;
3255 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
,
3256 unsigned int (*cb
) (SSL
*ssl
,
3257 const char *identity
,
3262 ctx
->psk_server_callback
= cb
;
3266 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
3267 void (*cb
) (int write_p
, int version
,
3268 int content_type
, const void *buf
,
3269 size_t len
, SSL
*ssl
, void *arg
))
3271 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
3274 void SSL_set_msg_callback(SSL
*ssl
,
3275 void (*cb
) (int write_p
, int version
,
3276 int content_type
, const void *buf
,
3277 size_t len
, SSL
*ssl
, void *arg
))
3279 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
3283 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3284 * vairable, freeing EVP_MD_CTX previously stored in that variable, if any.
3285 * If EVP_MD pointer is passed, initializes ctx with this md Returns newly
3289 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
3291 ssl_clear_hash_ctx(hash
);
3292 *hash
= EVP_MD_CTX_create();
3293 if (*hash
== NULL
|| (md
&& EVP_DigestInit_ex(*hash
, md
, NULL
) <= 0)) {
3294 EVP_MD_CTX_destroy(*hash
);
3301 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
3305 EVP_MD_CTX_destroy(*hash
);
3309 void SSL_set_debug(SSL
*s
, int debug
)
3314 int SSL_cache_hit(SSL
*s
)
3319 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
3320 # include "../crypto/bio/bss_file.c"
3323 IMPLEMENT_STACK_OF(SSL_CIPHER
)
3324 IMPLEMENT_STACK_OF(SSL_COMP
)
3325 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);