2 * ! \file ssl/ssl_lib.c \brief Version independent SSL functions.
4 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
7 * This package is an SSL implementation written
8 * by Eric Young (eay@cryptsoft.com).
9 * The implementation was written so as to conform with Netscapes SSL.
11 * This library is free for commercial and non-commercial use as long as
12 * the following conditions are aheared to. The following conditions
13 * apply to all code found in this distribution, be it the RC4, RSA,
14 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
15 * included with this distribution is covered by the same copyright terms
16 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
18 * Copyright remains Eric Young's, and as such any Copyright notices in
19 * the code are not to be removed.
20 * If this package is used in a product, Eric Young should be given attribution
21 * as the author of the parts of the library used.
22 * This can be in the form of a textual message at program startup or
23 * in documentation (online or textual) provided with the package.
25 * Redistribution and use in source and binary forms, with or without
26 * modification, are permitted provided that the following conditions
28 * 1. Redistributions of source code must retain the copyright
29 * notice, this list of conditions and the following disclaimer.
30 * 2. Redistributions in binary form must reproduce the above copyright
31 * notice, this list of conditions and the following disclaimer in the
32 * documentation and/or other materials provided with the distribution.
33 * 3. All advertising materials mentioning features or use of this software
34 * must display the following acknowledgement:
35 * "This product includes cryptographic software written by
36 * Eric Young (eay@cryptsoft.com)"
37 * The word 'cryptographic' can be left out if the rouines from the library
38 * being used are not cryptographic related :-).
39 * 4. If you include any Windows specific code (or a derivative thereof) from
40 * the apps directory (application code) you must include an acknowledgement:
41 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
43 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55 * The licence and distribution terms for any publically available version or
56 * derivative of this code cannot be changed. i.e. this code cannot simply be
57 * copied and put under another distribution licence
58 * [including the GNU Public Licence.]
60 /* ====================================================================
61 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
63 * Redistribution and use in source and binary forms, with or without
64 * modification, are permitted provided that the following conditions
67 * 1. Redistributions of source code must retain the above copyright
68 * notice, this list of conditions and the following disclaimer.
70 * 2. Redistributions in binary form must reproduce the above copyright
71 * notice, this list of conditions and the following disclaimer in
72 * the documentation and/or other materials provided with the
75 * 3. All advertising materials mentioning features or use of this
76 * software must display the following acknowledgment:
77 * "This product includes software developed by the OpenSSL Project
78 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
80 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
81 * endorse or promote products derived from this software without
82 * prior written permission. For written permission, please contact
83 * openssl-core@openssl.org.
85 * 5. Products derived from this software may not be called "OpenSSL"
86 * nor may "OpenSSL" appear in their names without prior written
87 * permission of the OpenSSL Project.
89 * 6. Redistributions of any form whatsoever must retain the following
91 * "This product includes software developed by the OpenSSL Project
92 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
94 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
95 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
96 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
97 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
98 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
99 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
100 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
101 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
102 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
103 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
104 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
105 * OF THE POSSIBILITY OF SUCH DAMAGE.
106 * ====================================================================
108 * This product includes cryptographic software written by Eric Young
109 * (eay@cryptsoft.com). This product includes software written by Tim
110 * Hudson (tjh@cryptsoft.com).
113 /* ====================================================================
114 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
115 * ECC cipher suite support in OpenSSL originally developed by
116 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
118 /* ====================================================================
119 * Copyright 2005 Nokia. All rights reserved.
121 * The portions of the attached software ("Contribution") is developed by
122 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
125 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
126 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
127 * support (see RFC 4279) to OpenSSL.
129 * No patent licenses or other rights except those expressly stated in
130 * the OpenSSL open source license shall be deemed granted or received
131 * expressly, by implication, estoppel, or otherwise.
133 * No assurances are provided by Nokia that the Contribution does not
134 * infringe the patent or other intellectual property rights of any third
135 * party or that the license provides you with all the necessary rights
136 * to make use of the Contribution.
138 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
139 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
140 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
141 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
149 #include "ssl_locl.h"
150 #include <openssl/objects.h>
151 #include <openssl/lhash.h>
152 #include <openssl/x509v3.h>
153 #include <openssl/rand.h>
154 #include <openssl/ocsp.h>
155 #ifndef OPENSSL_NO_DH
156 # include <openssl/dh.h>
158 #ifndef OPENSSL_NO_ENGINE
159 # include <openssl/engine.h>
161 #include <openssl/async.h>
162 #ifndef OPENSSL_NO_CT
163 # include <openssl/ct.h>
166 const char SSL_version_str
[] = OPENSSL_VERSION_TEXT
;
168 SSL3_ENC_METHOD ssl3_undef_enc_method
= {
170 * evil casts, but these functions are only called if there's a library
173 (int (*)(SSL
*, SSL3_RECORD
*, unsigned int, int))ssl_undefined_function
,
174 (int (*)(SSL
*, SSL3_RECORD
*, unsigned char *, int))ssl_undefined_function
,
175 ssl_undefined_function
,
176 (int (*)(SSL
*, unsigned char *, unsigned char *, int))
177 ssl_undefined_function
,
178 (int (*)(SSL
*, int))ssl_undefined_function
,
179 (int (*)(SSL
*, const char *, int, unsigned char *))
180 ssl_undefined_function
,
181 0, /* finish_mac_length */
182 NULL
, /* client_finished_label */
183 0, /* client_finished_label_len */
184 NULL
, /* server_finished_label */
185 0, /* server_finished_label_len */
186 (int (*)(int))ssl_undefined_function
,
187 (int (*)(SSL
*, unsigned char *, size_t, const char *,
188 size_t, const unsigned char *, size_t,
189 int use_context
))ssl_undefined_function
,
192 struct ssl_async_args
{
196 enum { READFUNC
, WRITEFUNC
, OTHERFUNC
} type
;
198 int (*func_read
)(SSL
*, void *, int);
199 int (*func_write
)(SSL
*, const void *, int);
200 int (*func_other
)(SSL
*);
204 static const struct {
209 { DANETLS_MATCHING_FULL
, 0, NID_undef
},
210 { DANETLS_MATCHING_2256
, 1, NID_sha256
},
211 { DANETLS_MATCHING_2512
, 2, NID_sha512
},
214 static int dane_ctx_enable(struct dane_ctx_st
*dctx
)
216 const EVP_MD
**mdevp
;
218 uint8_t mdmax
= DANETLS_MATCHING_LAST
;
219 int n
= ((int) mdmax
) + 1; /* int to handle PrivMatch(255) */
222 mdevp
= OPENSSL_zalloc(n
* sizeof(*mdevp
));
223 mdord
= OPENSSL_zalloc(n
* sizeof(*mdord
));
225 if (mdord
== NULL
|| mdevp
== NULL
) {
227 SSLerr(SSL_F_DANE_CTX_ENABLE
, ERR_R_MALLOC_FAILURE
);
231 /* Install default entries */
232 for (i
= 0; i
< OSSL_NELEM(dane_mds
); ++i
) {
235 if (dane_mds
[i
].nid
== NID_undef
||
236 (md
= EVP_get_digestbynid(dane_mds
[i
].nid
)) == NULL
)
238 mdevp
[dane_mds
[i
].mtype
] = md
;
239 mdord
[dane_mds
[i
].mtype
] = dane_mds
[i
].ord
;
249 static void dane_ctx_final(struct dane_ctx_st
*dctx
)
251 OPENSSL_free(dctx
->mdevp
);
254 OPENSSL_free(dctx
->mdord
);
259 static void tlsa_free(danetls_record
*t
)
263 OPENSSL_free(t
->data
);
264 EVP_PKEY_free(t
->spki
);
268 static void dane_final(struct dane_st
*dane
)
270 sk_danetls_record_pop_free(dane
->trecs
, tlsa_free
);
273 sk_X509_pop_free(dane
->certs
, X509_free
);
276 X509_free(dane
->mcert
);
284 * dane_copy - Copy dane configuration, sans verification state.
286 static int ssl_dane_dup(SSL
*to
, SSL
*from
)
291 if (!DANETLS_ENABLED(&from
->dane
))
294 dane_final(&to
->dane
);
296 num
= sk_danetls_record_num(from
->dane
.trecs
);
297 for (i
= 0; i
< num
; ++i
) {
298 danetls_record
*t
= sk_danetls_record_value(from
->dane
.trecs
, i
);
299 if (SSL_dane_tlsa_add(to
, t
->usage
, t
->selector
, t
->mtype
,
300 t
->data
, t
->dlen
) <= 0)
306 static int dane_mtype_set(
307 struct dane_ctx_st
*dctx
,
314 if (mtype
== DANETLS_MATCHING_FULL
&& md
!= NULL
) {
315 SSLerr(SSL_F_DANE_MTYPE_SET
,
316 SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL
);
320 if (mtype
> dctx
->mdmax
) {
321 const EVP_MD
**mdevp
;
323 int n
= ((int) mtype
) + 1;
325 mdevp
= OPENSSL_realloc(dctx
->mdevp
, n
* sizeof(*mdevp
));
327 SSLerr(SSL_F_DANE_MTYPE_SET
, ERR_R_MALLOC_FAILURE
);
332 mdord
= OPENSSL_realloc(dctx
->mdord
, n
* sizeof(*mdord
));
334 SSLerr(SSL_F_DANE_MTYPE_SET
, ERR_R_MALLOC_FAILURE
);
339 /* Zero-fill any gaps */
340 for (i
= dctx
->mdmax
+1; i
< mtype
; ++i
) {
348 dctx
->mdevp
[mtype
] = md
;
349 /* Coerce ordinal of disabled matching types to 0 */
350 dctx
->mdord
[mtype
] = (md
== NULL
) ? 0 : ord
;
355 static const EVP_MD
*tlsa_md_get(struct dane_st
*dane
, uint8_t mtype
)
357 if (mtype
> dane
->dctx
->mdmax
)
359 return dane
->dctx
->mdevp
[mtype
];
362 static int dane_tlsa_add(
363 struct dane_st
*dane
,
371 const EVP_MD
*md
= NULL
;
372 int ilen
= (int)dlen
;
375 if (dane
->trecs
== NULL
) {
376 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_NOT_ENABLED
);
380 if (ilen
< 0 || dlen
!= (size_t)ilen
) {
381 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_DATA_LENGTH
);
385 if (usage
> DANETLS_USAGE_LAST
) {
386 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE
);
390 if (selector
> DANETLS_SELECTOR_LAST
) {
391 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_SELECTOR
);
395 if (mtype
!= DANETLS_MATCHING_FULL
) {
396 md
= tlsa_md_get(dane
, mtype
);
398 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE
);
403 if (md
!= NULL
&& dlen
!= (size_t)EVP_MD_size(md
)) {
404 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH
);
408 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_NULL_DATA
);
412 if ((t
= OPENSSL_zalloc(sizeof(*t
))) == NULL
) {
413 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
418 t
->selector
= selector
;
420 t
->data
= OPENSSL_malloc(ilen
);
421 if (t
->data
== NULL
) {
423 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
426 memcpy(t
->data
, data
, ilen
);
429 /* Validate and cache full certificate or public key */
430 if (mtype
== DANETLS_MATCHING_FULL
) {
431 const unsigned char *p
= data
;
433 EVP_PKEY
*pkey
= NULL
;
436 case DANETLS_SELECTOR_CERT
:
437 if (!d2i_X509(&cert
, &p
, dlen
) || p
< data
||
438 dlen
!= (size_t)(p
- data
)) {
440 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
443 if (X509_get0_pubkey(cert
) == NULL
) {
445 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
449 if ((DANETLS_USAGE_BIT(usage
) & DANETLS_TA_MASK
) == 0) {
455 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
456 * records that contain full certificates of trust-anchors that are
457 * not present in the wire chain. For usage PKIX-TA(0), we augment
458 * the chain with untrusted Full(0) certificates from DNS, in case
459 * they are missing from the chain.
461 if ((dane
->certs
== NULL
&&
462 (dane
->certs
= sk_X509_new_null()) == NULL
) ||
463 !sk_X509_push(dane
->certs
, cert
)) {
464 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
471 case DANETLS_SELECTOR_SPKI
:
472 if (!d2i_PUBKEY(&pkey
, &p
, dlen
) || p
< data
||
473 dlen
!= (size_t)(p
- data
)) {
475 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY
);
480 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
481 * records that contain full bare keys of trust-anchors that are
482 * not present in the wire chain.
484 if (usage
== DANETLS_USAGE_DANE_TA
)
493 * Find the right insertion point for the new record.
495 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
496 * they can be processed first, as they require no chain building, and no
497 * expiration or hostname checks. Because DANE-EE(3) is numerically
498 * largest, this is accomplished via descending sort by "usage".
500 * We also sort in descending order by matching ordinal to simplify
501 * the implementation of digest agility in the verification code.
503 * The choice of order for the selector is not significant, so we
504 * use the same descending order for consistency.
506 for (i
= 0; i
< sk_danetls_record_num(dane
->trecs
); ++i
) {
507 danetls_record
*rec
= sk_danetls_record_value(dane
->trecs
, i
);
508 if (rec
->usage
> usage
)
510 if (rec
->usage
< usage
)
512 if (rec
->selector
> selector
)
514 if (rec
->selector
< selector
)
516 if (dane
->dctx
->mdord
[rec
->mtype
] > dane
->dctx
->mdord
[mtype
])
521 if (!sk_danetls_record_insert(dane
->trecs
, t
, i
)) {
523 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
526 dane
->umask
|= DANETLS_USAGE_BIT(usage
);
531 static void clear_ciphers(SSL
*s
)
533 /* clear the current cipher */
534 ssl_clear_cipher_ctx(s
);
535 ssl_clear_hash_ctx(&s
->read_hash
);
536 ssl_clear_hash_ctx(&s
->write_hash
);
539 int SSL_clear(SSL
*s
)
541 if (s
->method
== NULL
) {
542 SSLerr(SSL_F_SSL_CLEAR
, SSL_R_NO_METHOD_SPECIFIED
);
546 if (ssl_clear_bad_session(s
)) {
547 SSL_SESSION_free(s
->session
);
555 if (s
->renegotiate
) {
556 SSLerr(SSL_F_SSL_CLEAR
, ERR_R_INTERNAL_ERROR
);
560 ossl_statem_clear(s
);
562 s
->version
= s
->method
->version
;
563 s
->client_version
= s
->version
;
564 s
->rwstate
= SSL_NOTHING
;
566 BUF_MEM_free(s
->init_buf
);
571 /* Reset DANE verification result state */
574 X509_free(s
->dane
.mcert
);
575 s
->dane
.mcert
= NULL
;
576 s
->dane
.mtlsa
= NULL
;
578 /* Clear the verification result peername */
579 X509_VERIFY_PARAM_move_peername(s
->param
, NULL
);
582 * Check to see if we were changed into a different method, if so, revert
583 * back if we are not doing session-id reuse.
585 if (!ossl_statem_get_in_handshake(s
) && (s
->session
== NULL
)
586 && (s
->method
!= s
->ctx
->method
)) {
587 s
->method
->ssl_free(s
);
588 s
->method
= s
->ctx
->method
;
589 if (!s
->method
->ssl_new(s
))
592 s
->method
->ssl_clear(s
);
594 RECORD_LAYER_clear(&s
->rlayer
);
599 /** Used to change an SSL_CTXs default SSL method type */
600 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
, const SSL_METHOD
*meth
)
602 STACK_OF(SSL_CIPHER
) *sk
;
606 sk
= ssl_create_cipher_list(ctx
->method
, &(ctx
->cipher_list
),
607 &(ctx
->cipher_list_by_id
),
608 SSL_DEFAULT_CIPHER_LIST
, ctx
->cert
);
609 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
610 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
,
611 SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
617 SSL
*SSL_new(SSL_CTX
*ctx
)
622 SSLerr(SSL_F_SSL_NEW
, SSL_R_NULL_SSL_CTX
);
625 if (ctx
->method
== NULL
) {
626 SSLerr(SSL_F_SSL_NEW
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
630 s
= OPENSSL_zalloc(sizeof(*s
));
634 s
->lock
= CRYPTO_THREAD_lock_new();
635 if (s
->lock
== NULL
) {
636 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
641 RECORD_LAYER_init(&s
->rlayer
, s
);
643 s
->options
= ctx
->options
;
644 s
->min_proto_version
= ctx
->min_proto_version
;
645 s
->max_proto_version
= ctx
->max_proto_version
;
647 s
->max_cert_list
= ctx
->max_cert_list
;
651 * Earlier library versions used to copy the pointer to the CERT, not
652 * its contents; only when setting new parameters for the per-SSL
653 * copy, ssl_cert_new would be called (and the direct reference to
654 * the per-SSL_CTX settings would be lost, but those still were
655 * indirectly accessed for various purposes, and for that reason they
656 * used to be known as s->ctx->default_cert). Now we don't look at the
657 * SSL_CTX's CERT after having duplicated it once.
659 s
->cert
= ssl_cert_dup(ctx
->cert
);
663 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
664 s
->msg_callback
= ctx
->msg_callback
;
665 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
666 s
->verify_mode
= ctx
->verify_mode
;
667 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
668 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
669 OPENSSL_assert(s
->sid_ctx_length
<= sizeof s
->sid_ctx
);
670 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
671 s
->verify_callback
= ctx
->default_verify_callback
;
672 s
->generate_session_id
= ctx
->generate_session_id
;
674 s
->param
= X509_VERIFY_PARAM_new();
675 if (s
->param
== NULL
)
677 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
678 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
679 s
->max_send_fragment
= ctx
->max_send_fragment
;
680 s
->split_send_fragment
= ctx
->split_send_fragment
;
681 s
->max_pipelines
= ctx
->max_pipelines
;
682 if (s
->max_pipelines
> 1)
683 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
684 if (ctx
->default_read_buf_len
> 0)
685 SSL_set_default_read_buffer_len(s
, ctx
->default_read_buf_len
);
689 s
->tlsext_debug_cb
= 0;
690 s
->tlsext_debug_arg
= NULL
;
691 s
->tlsext_ticket_expected
= 0;
692 s
->tlsext_status_type
= -1;
693 s
->tlsext_status_expected
= 0;
694 s
->tlsext_ocsp_ids
= NULL
;
695 s
->tlsext_ocsp_exts
= NULL
;
696 s
->tlsext_ocsp_resp
= NULL
;
697 s
->tlsext_ocsp_resplen
= -1;
699 s
->initial_ctx
= ctx
;
700 # ifndef OPENSSL_NO_EC
701 if (ctx
->tlsext_ecpointformatlist
) {
702 s
->tlsext_ecpointformatlist
=
703 OPENSSL_memdup(ctx
->tlsext_ecpointformatlist
,
704 ctx
->tlsext_ecpointformatlist_length
);
705 if (!s
->tlsext_ecpointformatlist
)
707 s
->tlsext_ecpointformatlist_length
=
708 ctx
->tlsext_ecpointformatlist_length
;
710 if (ctx
->tlsext_ellipticcurvelist
) {
711 s
->tlsext_ellipticcurvelist
=
712 OPENSSL_memdup(ctx
->tlsext_ellipticcurvelist
,
713 ctx
->tlsext_ellipticcurvelist_length
);
714 if (!s
->tlsext_ellipticcurvelist
)
716 s
->tlsext_ellipticcurvelist_length
=
717 ctx
->tlsext_ellipticcurvelist_length
;
720 # ifndef OPENSSL_NO_NEXTPROTONEG
721 s
->next_proto_negotiated
= NULL
;
724 if (s
->ctx
->alpn_client_proto_list
) {
725 s
->alpn_client_proto_list
=
726 OPENSSL_malloc(s
->ctx
->alpn_client_proto_list_len
);
727 if (s
->alpn_client_proto_list
== NULL
)
729 memcpy(s
->alpn_client_proto_list
, s
->ctx
->alpn_client_proto_list
,
730 s
->ctx
->alpn_client_proto_list_len
);
731 s
->alpn_client_proto_list_len
= s
->ctx
->alpn_client_proto_list_len
;
734 s
->verified_chain
= NULL
;
735 s
->verify_result
= X509_V_OK
;
737 s
->default_passwd_callback
= ctx
->default_passwd_callback
;
738 s
->default_passwd_callback_userdata
= ctx
->default_passwd_callback_userdata
;
740 s
->method
= ctx
->method
;
742 if (!s
->method
->ssl_new(s
))
745 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
750 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
752 #ifndef OPENSSL_NO_PSK
753 s
->psk_client_callback
= ctx
->psk_client_callback
;
754 s
->psk_server_callback
= ctx
->psk_server_callback
;
759 #ifndef OPENSSL_NO_CT
760 if (!SSL_set_ct_validation_callback(s
, ctx
->ct_validation_callback
,
761 ctx
->ct_validation_callback_arg
))
768 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
772 void SSL_up_ref(SSL
*s
)
775 CRYPTO_atomic_add(&s
->references
, 1, &i
, s
->lock
);
778 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
779 unsigned int sid_ctx_len
)
781 if (sid_ctx_len
> sizeof ctx
->sid_ctx
) {
782 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,
783 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
786 ctx
->sid_ctx_length
= sid_ctx_len
;
787 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
792 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
793 unsigned int sid_ctx_len
)
795 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
796 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,
797 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
800 ssl
->sid_ctx_length
= sid_ctx_len
;
801 memcpy(ssl
->sid_ctx
, sid_ctx
, sid_ctx_len
);
806 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
808 CRYPTO_THREAD_write_lock(ctx
->lock
);
809 ctx
->generate_session_id
= cb
;
810 CRYPTO_THREAD_unlock(ctx
->lock
);
814 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
816 CRYPTO_THREAD_write_lock(ssl
->lock
);
817 ssl
->generate_session_id
= cb
;
818 CRYPTO_THREAD_unlock(ssl
->lock
);
822 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
826 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
827 * we can "construct" a session to give us the desired check - ie. to
828 * find if there's a session in the hash table that would conflict with
829 * any new session built out of this id/id_len and the ssl_version in use
834 if (id_len
> sizeof r
.session_id
)
837 r
.ssl_version
= ssl
->version
;
838 r
.session_id_length
= id_len
;
839 memcpy(r
.session_id
, id
, id_len
);
841 CRYPTO_THREAD_read_lock(ssl
->ctx
->lock
);
842 p
= lh_SSL_SESSION_retrieve(ssl
->ctx
->sessions
, &r
);
843 CRYPTO_THREAD_unlock(ssl
->ctx
->lock
);
847 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
849 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
852 int SSL_set_purpose(SSL
*s
, int purpose
)
854 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
857 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
859 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
862 int SSL_set_trust(SSL
*s
, int trust
)
864 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
867 int SSL_set1_host(SSL
*s
, const char *hostname
)
869 return X509_VERIFY_PARAM_set1_host(s
->param
, hostname
, 0);
872 int SSL_add1_host(SSL
*s
, const char *hostname
)
874 return X509_VERIFY_PARAM_add1_host(s
->param
, hostname
, 0);
877 void SSL_set_hostflags(SSL
*s
, unsigned int flags
)
879 X509_VERIFY_PARAM_set_hostflags(s
->param
, flags
);
882 const char *SSL_get0_peername(SSL
*s
)
884 return X509_VERIFY_PARAM_get0_peername(s
->param
);
887 int SSL_CTX_dane_enable(SSL_CTX
*ctx
)
889 return dane_ctx_enable(&ctx
->dane
);
892 int SSL_dane_enable(SSL
*s
, const char *basedomain
)
894 struct dane_st
*dane
= &s
->dane
;
896 if (s
->ctx
->dane
.mdmax
== 0) {
897 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_CONTEXT_NOT_DANE_ENABLED
);
900 if (dane
->trecs
!= NULL
) {
901 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_DANE_ALREADY_ENABLED
);
906 * Default SNI name. This rejects empty names, while set1_host below
907 * accepts them and disables host name checks. To avoid side-effects with
908 * invalid input, set the SNI name first.
910 if (s
->tlsext_hostname
== NULL
) {
911 if (!SSL_set_tlsext_host_name(s
, basedomain
)) {
912 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
917 /* Primary RFC6125 reference identifier */
918 if (!X509_VERIFY_PARAM_set1_host(s
->param
, basedomain
, 0)) {
919 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
925 dane
->dctx
= &s
->ctx
->dane
;
926 dane
->trecs
= sk_danetls_record_new_null();
928 if (dane
->trecs
== NULL
) {
929 SSLerr(SSL_F_SSL_DANE_ENABLE
, ERR_R_MALLOC_FAILURE
);
935 int SSL_get0_dane_authority(SSL
*s
, X509
**mcert
, EVP_PKEY
**mspki
)
937 struct dane_st
*dane
= &s
->dane
;
939 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
943 *mcert
= dane
->mcert
;
945 *mspki
= (dane
->mcert
== NULL
) ? dane
->mtlsa
->spki
: NULL
;
950 int SSL_get0_dane_tlsa(SSL
*s
, uint8_t *usage
, uint8_t *selector
,
951 uint8_t *mtype
, unsigned const char **data
, size_t *dlen
)
953 struct dane_st
*dane
= &s
->dane
;
955 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
959 *usage
= dane
->mtlsa
->usage
;
961 *selector
= dane
->mtlsa
->selector
;
963 *mtype
= dane
->mtlsa
->mtype
;
965 *data
= dane
->mtlsa
->data
;
967 *dlen
= dane
->mtlsa
->dlen
;
972 struct dane_st
*SSL_get0_dane(SSL
*s
)
977 int SSL_dane_tlsa_add(SSL
*s
, uint8_t usage
, uint8_t selector
,
978 uint8_t mtype
, unsigned char *data
, size_t dlen
)
980 return dane_tlsa_add(&s
->dane
, usage
, selector
, mtype
, data
, dlen
);
983 int SSL_CTX_dane_mtype_set(SSL_CTX
*ctx
, const EVP_MD
*md
, uint8_t mtype
, uint8_t ord
)
985 return dane_mtype_set(&ctx
->dane
, md
, mtype
, ord
);
988 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
990 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
993 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
995 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
998 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
1003 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
1008 void SSL_certs_clear(SSL
*s
)
1010 ssl_cert_clear_certs(s
->cert
);
1013 void SSL_free(SSL
*s
)
1020 CRYPTO_atomic_add(&s
->references
, -1, &i
, s
->lock
);
1021 REF_PRINT_COUNT("SSL", s
);
1024 REF_ASSERT_ISNT(i
< 0);
1026 X509_VERIFY_PARAM_free(s
->param
);
1027 dane_final(&s
->dane
);
1028 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
1030 if (s
->bbio
!= NULL
) {
1031 /* If the buffering BIO is in place, pop it off */
1032 if (s
->bbio
== s
->wbio
) {
1033 s
->wbio
= BIO_pop(s
->wbio
);
1038 BIO_free_all(s
->rbio
);
1039 if (s
->wbio
!= s
->rbio
)
1040 BIO_free_all(s
->wbio
);
1042 BUF_MEM_free(s
->init_buf
);
1044 /* add extra stuff */
1045 sk_SSL_CIPHER_free(s
->cipher_list
);
1046 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
1048 /* Make the next call work :-) */
1049 if (s
->session
!= NULL
) {
1050 ssl_clear_bad_session(s
);
1051 SSL_SESSION_free(s
->session
);
1056 ssl_cert_free(s
->cert
);
1057 /* Free up if allocated */
1059 OPENSSL_free(s
->tlsext_hostname
);
1060 SSL_CTX_free(s
->initial_ctx
);
1061 #ifndef OPENSSL_NO_EC
1062 OPENSSL_free(s
->tlsext_ecpointformatlist
);
1063 OPENSSL_free(s
->tlsext_ellipticcurvelist
);
1064 #endif /* OPENSSL_NO_EC */
1065 sk_X509_EXTENSION_pop_free(s
->tlsext_ocsp_exts
, X509_EXTENSION_free
);
1066 sk_OCSP_RESPID_pop_free(s
->tlsext_ocsp_ids
, OCSP_RESPID_free
);
1067 #ifndef OPENSSL_NO_CT
1068 SCT_LIST_free(s
->scts
);
1069 OPENSSL_free(s
->tlsext_scts
);
1071 OPENSSL_free(s
->tlsext_ocsp_resp
);
1072 OPENSSL_free(s
->alpn_client_proto_list
);
1074 sk_X509_NAME_pop_free(s
->client_CA
, X509_NAME_free
);
1076 sk_X509_pop_free(s
->verified_chain
, X509_free
);
1078 if (s
->method
!= NULL
)
1079 s
->method
->ssl_free(s
);
1081 RECORD_LAYER_release(&s
->rlayer
);
1083 SSL_CTX_free(s
->ctx
);
1085 ASYNC_WAIT_CTX_free(s
->waitctx
);
1087 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1088 OPENSSL_free(s
->next_proto_negotiated
);
1091 #ifndef OPENSSL_NO_SRTP
1092 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
1095 CRYPTO_THREAD_lock_free(s
->lock
);
1100 void SSL_set_rbio(SSL
*s
, BIO
*rbio
)
1102 if (s
->rbio
!= rbio
)
1103 BIO_free_all(s
->rbio
);
1107 void SSL_set_wbio(SSL
*s
, BIO
*wbio
)
1110 * If the output buffering BIO is still in place, remove it
1112 if (s
->bbio
!= NULL
) {
1113 if (s
->wbio
== s
->bbio
) {
1114 s
->wbio
= s
->wbio
->next_bio
;
1115 s
->bbio
->next_bio
= NULL
;
1118 if (s
->wbio
!= wbio
&& s
->rbio
!= s
->wbio
)
1119 BIO_free_all(s
->wbio
);
1123 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
1125 SSL_set_wbio(s
, wbio
);
1126 SSL_set_rbio(s
, rbio
);
1129 BIO
*SSL_get_rbio(const SSL
*s
)
1134 BIO
*SSL_get_wbio(const SSL
*s
)
1139 int SSL_get_fd(const SSL
*s
)
1141 return (SSL_get_rfd(s
));
1144 int SSL_get_rfd(const SSL
*s
)
1149 b
= SSL_get_rbio(s
);
1150 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1152 BIO_get_fd(r
, &ret
);
1156 int SSL_get_wfd(const SSL
*s
)
1161 b
= SSL_get_wbio(s
);
1162 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1164 BIO_get_fd(r
, &ret
);
1168 #ifndef OPENSSL_NO_SOCK
1169 int SSL_set_fd(SSL
*s
, int fd
)
1174 bio
= BIO_new(BIO_s_socket());
1177 SSLerr(SSL_F_SSL_SET_FD
, ERR_R_BUF_LIB
);
1180 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1181 SSL_set_bio(s
, bio
, bio
);
1187 int SSL_set_wfd(SSL
*s
, int fd
)
1192 if ((s
->rbio
== NULL
) || (BIO_method_type(s
->rbio
) != BIO_TYPE_SOCKET
)
1193 || ((int)BIO_get_fd(s
->rbio
, NULL
) != fd
)) {
1194 bio
= BIO_new(BIO_s_socket());
1197 SSLerr(SSL_F_SSL_SET_WFD
, ERR_R_BUF_LIB
);
1200 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1201 SSL_set_bio(s
, SSL_get_rbio(s
), bio
);
1203 SSL_set_bio(s
, SSL_get_rbio(s
), SSL_get_rbio(s
));
1209 int SSL_set_rfd(SSL
*s
, int fd
)
1214 if ((s
->wbio
== NULL
) || (BIO_method_type(s
->wbio
) != BIO_TYPE_SOCKET
)
1215 || ((int)BIO_get_fd(s
->wbio
, NULL
) != fd
)) {
1216 bio
= BIO_new(BIO_s_socket());
1219 SSLerr(SSL_F_SSL_SET_RFD
, ERR_R_BUF_LIB
);
1222 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1223 SSL_set_bio(s
, bio
, SSL_get_wbio(s
));
1225 SSL_set_bio(s
, SSL_get_wbio(s
), SSL_get_wbio(s
));
1232 /* return length of latest Finished message we sent, copy to 'buf' */
1233 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
1237 if (s
->s3
!= NULL
) {
1238 ret
= s
->s3
->tmp
.finish_md_len
;
1241 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
1246 /* return length of latest Finished message we expected, copy to 'buf' */
1247 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
1251 if (s
->s3
!= NULL
) {
1252 ret
= s
->s3
->tmp
.peer_finish_md_len
;
1255 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
1260 int SSL_get_verify_mode(const SSL
*s
)
1262 return (s
->verify_mode
);
1265 int SSL_get_verify_depth(const SSL
*s
)
1267 return X509_VERIFY_PARAM_get_depth(s
->param
);
1270 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
1271 return (s
->verify_callback
);
1274 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
1276 return (ctx
->verify_mode
);
1279 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
1281 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
1284 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
1285 return (ctx
->default_verify_callback
);
1288 void SSL_set_verify(SSL
*s
, int mode
,
1289 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
1291 s
->verify_mode
= mode
;
1292 if (callback
!= NULL
)
1293 s
->verify_callback
= callback
;
1296 void SSL_set_verify_depth(SSL
*s
, int depth
)
1298 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
1301 void SSL_set_read_ahead(SSL
*s
, int yes
)
1303 RECORD_LAYER_set_read_ahead(&s
->rlayer
, yes
);
1306 int SSL_get_read_ahead(const SSL
*s
)
1308 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
1311 int SSL_pending(const SSL
*s
)
1314 * SSL_pending cannot work properly if read-ahead is enabled
1315 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1316 * impossible to fix since SSL_pending cannot report errors that may be
1317 * observed while scanning the new data. (Note that SSL_pending() is
1318 * often used as a boolean value, so we'd better not return -1.)
1320 return (s
->method
->ssl_pending(s
));
1323 int SSL_has_pending(const SSL
*s
)
1326 * Similar to SSL_pending() but returns a 1 to indicate that we have
1327 * unprocessed data available or 0 otherwise (as opposed to the number of
1328 * bytes available). Unlike SSL_pending() this will take into account
1329 * read_ahead data. A 1 return simply indicates that we have unprocessed
1330 * data. That data may not result in any application data, or we may fail
1331 * to parse the records for some reason.
1336 return RECORD_LAYER_read_pending(&s
->rlayer
);
1339 X509
*SSL_get_peer_certificate(const SSL
*s
)
1343 if ((s
== NULL
) || (s
->session
== NULL
))
1346 r
= s
->session
->peer
;
1356 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
1360 if ((s
== NULL
) || (s
->session
== NULL
))
1363 r
= s
->session
->peer_chain
;
1366 * If we are a client, cert_chain includes the peer's own certificate; if
1367 * we are a server, it does not.
1374 * Now in theory, since the calling process own 't' it should be safe to
1375 * modify. We need to be able to read f without being hassled
1377 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
1380 /* Do we need to to SSL locking? */
1381 if (!SSL_set_session(t
, SSL_get_session(f
))) {
1386 * what if we are setup for one protocol version but want to talk another
1388 if (t
->method
!= f
->method
) {
1389 t
->method
->ssl_free(t
);
1390 t
->method
= f
->method
;
1391 if (t
->method
->ssl_new(t
) == 0)
1395 CRYPTO_atomic_add(&f
->cert
->references
, 1, &i
, f
->cert
->lock
);
1396 ssl_cert_free(t
->cert
);
1398 if (!SSL_set_session_id_context(t
, f
->sid_ctx
, f
->sid_ctx_length
)) {
1405 /* Fix this so it checks all the valid key/cert options */
1406 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
1408 if ((ctx
== NULL
) ||
1409 (ctx
->cert
->key
->x509
== NULL
)) {
1410 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,
1411 SSL_R_NO_CERTIFICATE_ASSIGNED
);
1414 if (ctx
->cert
->key
->privatekey
== NULL
) {
1415 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,
1416 SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1419 return (X509_check_private_key
1420 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
));
1423 /* Fix this function so that it takes an optional type parameter */
1424 int SSL_check_private_key(const SSL
*ssl
)
1427 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, ERR_R_PASSED_NULL_PARAMETER
);
1430 if (ssl
->cert
->key
->x509
== NULL
) {
1431 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1434 if (ssl
->cert
->key
->privatekey
== NULL
) {
1435 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1438 return (X509_check_private_key(ssl
->cert
->key
->x509
,
1439 ssl
->cert
->key
->privatekey
));
1442 int SSL_waiting_for_async(SSL
*s
)
1450 int SSL_get_all_async_fds(SSL
*s
, OSSL_ASYNC_FD
*fds
, size_t *numfds
)
1452 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1456 return ASYNC_WAIT_CTX_get_all_fds(ctx
, fds
, numfds
);
1459 int SSL_get_changed_async_fds(SSL
*s
, OSSL_ASYNC_FD
*addfd
, size_t *numaddfds
,
1460 OSSL_ASYNC_FD
*delfd
, size_t *numdelfds
)
1462 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1466 return ASYNC_WAIT_CTX_get_changed_fds(ctx
, addfd
, numaddfds
, delfd
,
1470 int SSL_accept(SSL
*s
)
1472 if (s
->handshake_func
== NULL
) {
1473 /* Not properly initialized yet */
1474 SSL_set_accept_state(s
);
1477 return SSL_do_handshake(s
);
1480 int SSL_connect(SSL
*s
)
1482 if (s
->handshake_func
== NULL
) {
1483 /* Not properly initialized yet */
1484 SSL_set_connect_state(s
);
1487 return SSL_do_handshake(s
);
1490 long SSL_get_default_timeout(const SSL
*s
)
1492 return (s
->method
->get_timeout());
1495 static int ssl_start_async_job(SSL
*s
, struct ssl_async_args
*args
,
1496 int (*func
)(void *)) {
1498 if (s
->waitctx
== NULL
) {
1499 s
->waitctx
= ASYNC_WAIT_CTX_new();
1500 if (s
->waitctx
== NULL
)
1503 switch(ASYNC_start_job(&s
->job
, s
->waitctx
, &ret
, func
, args
,
1504 sizeof(struct ssl_async_args
))) {
1506 s
->rwstate
= SSL_NOTHING
;
1507 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, SSL_R_FAILED_TO_INIT_ASYNC
);
1510 s
->rwstate
= SSL_ASYNC_PAUSED
;
1516 s
->rwstate
= SSL_NOTHING
;
1517 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, ERR_R_INTERNAL_ERROR
);
1518 /* Shouldn't happen */
1523 static int ssl_io_intern(void *vargs
)
1525 struct ssl_async_args
*args
;
1530 args
= (struct ssl_async_args
*)vargs
;
1534 switch (args
->type
) {
1536 return args
->f
.func_read(s
, buf
, num
);
1538 return args
->f
.func_write(s
, buf
, num
);
1540 return args
->f
.func_other(s
);
1545 int SSL_read(SSL
*s
, void *buf
, int num
)
1547 if (s
->handshake_func
== NULL
) {
1548 SSLerr(SSL_F_SSL_READ
, SSL_R_UNINITIALIZED
);
1552 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1553 s
->rwstate
= SSL_NOTHING
;
1557 if((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1558 struct ssl_async_args args
;
1563 args
.type
= READFUNC
;
1564 args
.f
.func_read
= s
->method
->ssl_read
;
1566 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
1568 return s
->method
->ssl_read(s
, buf
, num
);
1572 int SSL_peek(SSL
*s
, void *buf
, int num
)
1574 if (s
->handshake_func
== NULL
) {
1575 SSLerr(SSL_F_SSL_PEEK
, SSL_R_UNINITIALIZED
);
1579 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1582 if((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1583 struct ssl_async_args args
;
1588 args
.type
= READFUNC
;
1589 args
.f
.func_read
= s
->method
->ssl_peek
;
1591 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
1593 return s
->method
->ssl_peek(s
, buf
, num
);
1597 int SSL_write(SSL
*s
, const void *buf
, int num
)
1599 if (s
->handshake_func
== NULL
) {
1600 SSLerr(SSL_F_SSL_WRITE
, SSL_R_UNINITIALIZED
);
1604 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
1605 s
->rwstate
= SSL_NOTHING
;
1606 SSLerr(SSL_F_SSL_WRITE
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
1610 if((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1611 struct ssl_async_args args
;
1614 args
.buf
= (void *)buf
;
1616 args
.type
= WRITEFUNC
;
1617 args
.f
.func_write
= s
->method
->ssl_write
;
1619 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
1621 return s
->method
->ssl_write(s
, buf
, num
);
1625 int SSL_shutdown(SSL
*s
)
1628 * Note that this function behaves differently from what one might
1629 * expect. Return values are 0 for no success (yet), 1 for success; but
1630 * calling it once is usually not enough, even if blocking I/O is used
1631 * (see ssl3_shutdown).
1634 if (s
->handshake_func
== NULL
) {
1635 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
1639 if (!SSL_in_init(s
)) {
1640 if((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1641 struct ssl_async_args args
;
1644 args
.type
= OTHERFUNC
;
1645 args
.f
.func_other
= s
->method
->ssl_shutdown
;
1647 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
1649 return s
->method
->ssl_shutdown(s
);
1652 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_SHUTDOWN_WHILE_IN_INIT
);
1657 int SSL_renegotiate(SSL
*s
)
1659 if (s
->renegotiate
== 0)
1664 return (s
->method
->ssl_renegotiate(s
));
1667 int SSL_renegotiate_abbreviated(SSL
*s
)
1669 if (s
->renegotiate
== 0)
1674 return (s
->method
->ssl_renegotiate(s
));
1677 int SSL_renegotiate_pending(SSL
*s
)
1680 * becomes true when negotiation is requested; false again once a
1681 * handshake has finished
1683 return (s
->renegotiate
!= 0);
1686 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
1691 case SSL_CTRL_GET_READ_AHEAD
:
1692 return (RECORD_LAYER_get_read_ahead(&s
->rlayer
));
1693 case SSL_CTRL_SET_READ_AHEAD
:
1694 l
= RECORD_LAYER_get_read_ahead(&s
->rlayer
);
1695 RECORD_LAYER_set_read_ahead(&s
->rlayer
, larg
);
1698 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1699 s
->msg_callback_arg
= parg
;
1703 return (s
->mode
|= larg
);
1704 case SSL_CTRL_CLEAR_MODE
:
1705 return (s
->mode
&= ~larg
);
1706 case SSL_CTRL_GET_MAX_CERT_LIST
:
1707 return (s
->max_cert_list
);
1708 case SSL_CTRL_SET_MAX_CERT_LIST
:
1709 l
= s
->max_cert_list
;
1710 s
->max_cert_list
= larg
;
1712 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
1713 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
1715 s
->max_send_fragment
= larg
;
1716 if (s
->max_send_fragment
< s
->split_send_fragment
)
1717 s
->split_send_fragment
= s
->max_send_fragment
;
1719 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
1720 if ((unsigned int)larg
> s
->max_send_fragment
|| larg
== 0)
1722 s
->split_send_fragment
= larg
;
1724 case SSL_CTRL_SET_MAX_PIPELINES
:
1725 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
1727 s
->max_pipelines
= larg
;
1729 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
1731 case SSL_CTRL_GET_RI_SUPPORT
:
1733 return s
->s3
->send_connection_binding
;
1736 case SSL_CTRL_CERT_FLAGS
:
1737 return (s
->cert
->cert_flags
|= larg
);
1738 case SSL_CTRL_CLEAR_CERT_FLAGS
:
1739 return (s
->cert
->cert_flags
&= ~larg
);
1741 case SSL_CTRL_GET_RAW_CIPHERLIST
:
1743 if (s
->s3
->tmp
.ciphers_raw
== NULL
)
1745 *(unsigned char **)parg
= s
->s3
->tmp
.ciphers_raw
;
1746 return (int)s
->s3
->tmp
.ciphers_rawlen
;
1748 return TLS_CIPHER_LEN
;
1750 case SSL_CTRL_GET_EXTMS_SUPPORT
:
1751 if (!s
->session
|| SSL_in_init(s
) || ossl_statem_get_in_handshake(s
))
1753 if (s
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
1757 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
1758 return ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
1759 &s
->min_proto_version
);
1760 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
1761 return ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
1762 &s
->max_proto_version
);
1764 return (s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
));
1768 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
1771 case SSL_CTRL_SET_MSG_CALLBACK
:
1772 s
->msg_callback
= (void (*)
1773 (int write_p
, int version
, int content_type
,
1774 const void *buf
, size_t len
, SSL
*ssl
,
1779 return (s
->method
->ssl_callback_ctrl(s
, cmd
, fp
));
1783 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
1785 return ctx
->sessions
;
1788 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
1791 /* For some cases with ctx == NULL perform syntax checks */
1794 #ifndef OPENSSL_NO_EC
1795 case SSL_CTRL_SET_CURVES_LIST
:
1796 return tls1_set_curves_list(NULL
, NULL
, parg
);
1798 case SSL_CTRL_SET_SIGALGS_LIST
:
1799 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
1800 return tls1_set_sigalgs_list(NULL
, parg
, 0);
1807 case SSL_CTRL_GET_READ_AHEAD
:
1808 return (ctx
->read_ahead
);
1809 case SSL_CTRL_SET_READ_AHEAD
:
1810 l
= ctx
->read_ahead
;
1811 ctx
->read_ahead
= larg
;
1814 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1815 ctx
->msg_callback_arg
= parg
;
1818 case SSL_CTRL_GET_MAX_CERT_LIST
:
1819 return (ctx
->max_cert_list
);
1820 case SSL_CTRL_SET_MAX_CERT_LIST
:
1821 l
= ctx
->max_cert_list
;
1822 ctx
->max_cert_list
= larg
;
1825 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
1826 l
= ctx
->session_cache_size
;
1827 ctx
->session_cache_size
= larg
;
1829 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
1830 return (ctx
->session_cache_size
);
1831 case SSL_CTRL_SET_SESS_CACHE_MODE
:
1832 l
= ctx
->session_cache_mode
;
1833 ctx
->session_cache_mode
= larg
;
1835 case SSL_CTRL_GET_SESS_CACHE_MODE
:
1836 return (ctx
->session_cache_mode
);
1838 case SSL_CTRL_SESS_NUMBER
:
1839 return (lh_SSL_SESSION_num_items(ctx
->sessions
));
1840 case SSL_CTRL_SESS_CONNECT
:
1841 return (ctx
->stats
.sess_connect
);
1842 case SSL_CTRL_SESS_CONNECT_GOOD
:
1843 return (ctx
->stats
.sess_connect_good
);
1844 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
1845 return (ctx
->stats
.sess_connect_renegotiate
);
1846 case SSL_CTRL_SESS_ACCEPT
:
1847 return (ctx
->stats
.sess_accept
);
1848 case SSL_CTRL_SESS_ACCEPT_GOOD
:
1849 return (ctx
->stats
.sess_accept_good
);
1850 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
1851 return (ctx
->stats
.sess_accept_renegotiate
);
1852 case SSL_CTRL_SESS_HIT
:
1853 return (ctx
->stats
.sess_hit
);
1854 case SSL_CTRL_SESS_CB_HIT
:
1855 return (ctx
->stats
.sess_cb_hit
);
1856 case SSL_CTRL_SESS_MISSES
:
1857 return (ctx
->stats
.sess_miss
);
1858 case SSL_CTRL_SESS_TIMEOUTS
:
1859 return (ctx
->stats
.sess_timeout
);
1860 case SSL_CTRL_SESS_CACHE_FULL
:
1861 return (ctx
->stats
.sess_cache_full
);
1863 return (ctx
->mode
|= larg
);
1864 case SSL_CTRL_CLEAR_MODE
:
1865 return (ctx
->mode
&= ~larg
);
1866 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
1867 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
1869 ctx
->max_send_fragment
= larg
;
1870 if (ctx
->max_send_fragment
< ctx
->split_send_fragment
)
1871 ctx
->split_send_fragment
= ctx
->split_send_fragment
;
1873 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
1874 if ((unsigned int)larg
> ctx
->max_send_fragment
|| larg
== 0)
1876 ctx
->split_send_fragment
= larg
;
1878 case SSL_CTRL_SET_MAX_PIPELINES
:
1879 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
1881 ctx
->max_pipelines
= larg
;
1883 case SSL_CTRL_CERT_FLAGS
:
1884 return (ctx
->cert
->cert_flags
|= larg
);
1885 case SSL_CTRL_CLEAR_CERT_FLAGS
:
1886 return (ctx
->cert
->cert_flags
&= ~larg
);
1887 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
1888 return ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
1889 &ctx
->min_proto_version
);
1890 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
1891 return ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
1892 &ctx
->max_proto_version
);
1894 return (ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
));
1898 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
1901 case SSL_CTRL_SET_MSG_CALLBACK
:
1902 ctx
->msg_callback
= (void (*)
1903 (int write_p
, int version
, int content_type
,
1904 const void *buf
, size_t len
, SSL
*ssl
,
1909 return (ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
));
1913 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
1922 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
1923 const SSL_CIPHER
*const *bp
)
1925 if ((*ap
)->id
> (*bp
)->id
)
1927 if ((*ap
)->id
< (*bp
)->id
)
1932 /** return a STACK of the ciphers available for the SSL and in order of
1934 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
1937 if (s
->cipher_list
!= NULL
) {
1938 return (s
->cipher_list
);
1939 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
1940 return (s
->ctx
->cipher_list
);
1946 STACK_OF(SSL_CIPHER
) *SSL_get_client_ciphers(const SSL
*s
)
1948 if ((s
== NULL
) || (s
->session
== NULL
) || !s
->server
)
1950 return s
->session
->ciphers
;
1953 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
1955 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
1957 ciphers
= SSL_get_ciphers(s
);
1960 ssl_set_client_disabled(s
);
1961 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
1962 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
1963 if (!ssl_cipher_disabled(s
, c
, SSL_SECOP_CIPHER_SUPPORTED
)) {
1965 sk
= sk_SSL_CIPHER_new_null();
1968 if (!sk_SSL_CIPHER_push(sk
, c
)) {
1969 sk_SSL_CIPHER_free(sk
);
1977 /** return a STACK of the ciphers available for the SSL and in order of
1979 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
1982 if (s
->cipher_list_by_id
!= NULL
) {
1983 return (s
->cipher_list_by_id
);
1984 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list_by_id
!= NULL
)) {
1985 return (s
->ctx
->cipher_list_by_id
);
1991 /** The old interface to get the same thing as SSL_get_ciphers() */
1992 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
1994 const SSL_CIPHER
*c
;
1995 STACK_OF(SSL_CIPHER
) *sk
;
1999 sk
= SSL_get_ciphers(s
);
2000 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
2002 c
= sk_SSL_CIPHER_value(sk
, n
);
2008 /** specify the ciphers to be used by default by the SSL_CTX */
2009 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
2011 STACK_OF(SSL_CIPHER
) *sk
;
2013 sk
= ssl_create_cipher_list(ctx
->method
, &ctx
->cipher_list
,
2014 &ctx
->cipher_list_by_id
, str
, ctx
->cert
);
2016 * ssl_create_cipher_list may return an empty stack if it was unable to
2017 * find a cipher matching the given rule string (for example if the rule
2018 * string specifies a cipher which has been disabled). This is not an
2019 * error as far as ssl_create_cipher_list is concerned, and hence
2020 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
2024 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2025 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2031 /** specify the ciphers to be used by the SSL */
2032 int SSL_set_cipher_list(SSL
*s
, const char *str
)
2034 STACK_OF(SSL_CIPHER
) *sk
;
2036 sk
= ssl_create_cipher_list(s
->ctx
->method
, &s
->cipher_list
,
2037 &s
->cipher_list_by_id
, str
, s
->cert
);
2038 /* see comment in SSL_CTX_set_cipher_list */
2041 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2042 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2048 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int len
)
2051 STACK_OF(SSL_CIPHER
) *sk
;
2052 const SSL_CIPHER
*c
;
2055 if ((s
->session
== NULL
) || (s
->session
->ciphers
== NULL
) || (len
< 2))
2059 sk
= s
->session
->ciphers
;
2061 if (sk_SSL_CIPHER_num(sk
) == 0)
2064 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); i
++) {
2067 c
= sk_SSL_CIPHER_value(sk
, i
);
2068 n
= strlen(c
->name
);
2075 memcpy(p
, c
->name
, n
+ 1);
2084 /** return a servername extension value if provided in Client Hello, or NULL.
2085 * So far, only host_name types are defined (RFC 3546).
2088 const char *SSL_get_servername(const SSL
*s
, const int type
)
2090 if (type
!= TLSEXT_NAMETYPE_host_name
)
2093 return s
->session
&& !s
->tlsext_hostname
?
2094 s
->session
->tlsext_hostname
: s
->tlsext_hostname
;
2097 int SSL_get_servername_type(const SSL
*s
)
2100 && (!s
->tlsext_hostname
? s
->session
->
2101 tlsext_hostname
: s
->tlsext_hostname
))
2102 return TLSEXT_NAMETYPE_host_name
;
2107 * SSL_select_next_proto implements the standard protocol selection. It is
2108 * expected that this function is called from the callback set by
2109 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
2110 * vector of 8-bit, length prefixed byte strings. The length byte itself is
2111 * not included in the length. A byte string of length 0 is invalid. No byte
2112 * string may be truncated. The current, but experimental algorithm for
2113 * selecting the protocol is: 1) If the server doesn't support NPN then this
2114 * is indicated to the callback. In this case, the client application has to
2115 * abort the connection or have a default application level protocol. 2) If
2116 * the server supports NPN, but advertises an empty list then the client
2117 * selects the first protcol in its list, but indicates via the API that this
2118 * fallback case was enacted. 3) Otherwise, the client finds the first
2119 * protocol in the server's list that it supports and selects this protocol.
2120 * This is because it's assumed that the server has better information about
2121 * which protocol a client should use. 4) If the client doesn't support any
2122 * of the server's advertised protocols, then this is treated the same as
2123 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2124 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2126 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
2127 const unsigned char *server
,
2128 unsigned int server_len
,
2129 const unsigned char *client
,
2130 unsigned int client_len
)
2133 const unsigned char *result
;
2134 int status
= OPENSSL_NPN_UNSUPPORTED
;
2137 * For each protocol in server preference order, see if we support it.
2139 for (i
= 0; i
< server_len
;) {
2140 for (j
= 0; j
< client_len
;) {
2141 if (server
[i
] == client
[j
] &&
2142 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
2143 /* We found a match */
2144 result
= &server
[i
];
2145 status
= OPENSSL_NPN_NEGOTIATED
;
2155 /* There's no overlap between our protocols and the server's list. */
2157 status
= OPENSSL_NPN_NO_OVERLAP
;
2160 *out
= (unsigned char *)result
+ 1;
2161 *outlen
= result
[0];
2165 #ifndef OPENSSL_NO_NEXTPROTONEG
2167 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2168 * client's requested protocol for this connection and returns 0. If the
2169 * client didn't request any protocol, then *data is set to NULL. Note that
2170 * the client can request any protocol it chooses. The value returned from
2171 * this function need not be a member of the list of supported protocols
2172 * provided by the callback.
2174 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
2177 *data
= s
->next_proto_negotiated
;
2181 *len
= s
->next_proto_negotiated_len
;
2186 * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when
2187 * a TLS server needs a list of supported protocols for Next Protocol
2188 * Negotiation. The returned list must be in wire format. The list is
2189 * returned by setting |out| to point to it and |outlen| to its length. This
2190 * memory will not be modified, but one should assume that the SSL* keeps a
2191 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2192 * wishes to advertise. Otherwise, no such extension will be included in the
2195 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX
*ctx
,
2196 int (*cb
) (SSL
*ssl
,
2199 unsigned int *outlen
,
2200 void *arg
), void *arg
)
2202 ctx
->next_protos_advertised_cb
= cb
;
2203 ctx
->next_protos_advertised_cb_arg
= arg
;
2207 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2208 * client needs to select a protocol from the server's provided list. |out|
2209 * must be set to point to the selected protocol (which may be within |in|).
2210 * The length of the protocol name must be written into |outlen|. The
2211 * server's advertised protocols are provided in |in| and |inlen|. The
2212 * callback can assume that |in| is syntactically valid. The client must
2213 * select a protocol. It is fatal to the connection if this callback returns
2214 * a value other than SSL_TLSEXT_ERR_OK.
2216 void SSL_CTX_set_next_proto_select_cb(SSL_CTX
*ctx
,
2217 int (*cb
) (SSL
*s
, unsigned char **out
,
2218 unsigned char *outlen
,
2219 const unsigned char *in
,
2221 void *arg
), void *arg
)
2223 ctx
->next_proto_select_cb
= cb
;
2224 ctx
->next_proto_select_cb_arg
= arg
;
2229 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
2230 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2231 * length-prefixed strings). Returns 0 on success.
2233 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
2234 unsigned int protos_len
)
2236 OPENSSL_free(ctx
->alpn_client_proto_list
);
2237 ctx
->alpn_client_proto_list
= OPENSSL_memdup(protos
, protos_len
);
2238 if (ctx
->alpn_client_proto_list
== NULL
) {
2239 SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2242 ctx
->alpn_client_proto_list_len
= protos_len
;
2248 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
2249 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2250 * length-prefixed strings). Returns 0 on success.
2252 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
2253 unsigned int protos_len
)
2255 OPENSSL_free(ssl
->alpn_client_proto_list
);
2256 ssl
->alpn_client_proto_list
= OPENSSL_memdup(protos
, protos_len
);
2257 if (ssl
->alpn_client_proto_list
== NULL
) {
2258 SSLerr(SSL_F_SSL_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2261 ssl
->alpn_client_proto_list_len
= protos_len
;
2267 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
2268 * called during ClientHello processing in order to select an ALPN protocol
2269 * from the client's list of offered protocols.
2271 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
2272 int (*cb
) (SSL
*ssl
,
2273 const unsigned char **out
,
2274 unsigned char *outlen
,
2275 const unsigned char *in
,
2277 void *arg
), void *arg
)
2279 ctx
->alpn_select_cb
= cb
;
2280 ctx
->alpn_select_cb_arg
= arg
;
2284 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from
2285 * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name
2286 * (not including the leading length-prefix byte). If the server didn't
2287 * respond with a negotiated protocol then |*len| will be zero.
2289 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
2294 *data
= ssl
->s3
->alpn_selected
;
2298 *len
= ssl
->s3
->alpn_selected_len
;
2302 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
2303 const char *label
, size_t llen
,
2304 const unsigned char *p
, size_t plen
,
2307 if (s
->version
< TLS1_VERSION
)
2310 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
2315 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
2320 ((unsigned int)a
->session_id
[0]) |
2321 ((unsigned int)a
->session_id
[1] << 8L) |
2322 ((unsigned long)a
->session_id
[2] << 16L) |
2323 ((unsigned long)a
->session_id
[3] << 24L);
2328 * NB: If this function (or indeed the hash function which uses a sort of
2329 * coarser function than this one) is changed, ensure
2330 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
2331 * being able to construct an SSL_SESSION that will collide with any existing
2332 * session with a matching session ID.
2334 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
2336 if (a
->ssl_version
!= b
->ssl_version
)
2338 if (a
->session_id_length
!= b
->session_id_length
)
2340 return (memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
));
2344 * These wrapper functions should remain rather than redeclaring
2345 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
2346 * variable. The reason is that the functions aren't static, they're exposed
2350 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
2352 SSL_CTX
*ret
= NULL
;
2355 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_NULL_SSL_METHOD_PASSED
);
2359 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
, NULL
))
2362 if (FIPS_mode() && (meth
->version
< TLS1_VERSION
)) {
2363 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_AT_LEAST_TLS_1_0_NEEDED_IN_FIPS_MODE
);
2367 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
2368 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
2371 ret
= OPENSSL_zalloc(sizeof(*ret
));
2376 ret
->min_proto_version
= 0;
2377 ret
->max_proto_version
= 0;
2378 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
2379 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
2380 /* We take the system default. */
2381 ret
->session_timeout
= meth
->get_timeout();
2382 ret
->references
= 1;
2383 ret
->lock
= CRYPTO_THREAD_lock_new();
2384 if (ret
->lock
== NULL
) {
2385 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
2389 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
2390 ret
->verify_mode
= SSL_VERIFY_NONE
;
2391 if ((ret
->cert
= ssl_cert_new()) == NULL
)
2394 ret
->sessions
= lh_SSL_SESSION_new(ssl_session_hash
, ssl_session_cmp
);
2395 if (ret
->sessions
== NULL
)
2397 ret
->cert_store
= X509_STORE_new();
2398 if (ret
->cert_store
== NULL
)
2400 #ifndef OPENSSL_NO_CT
2401 ret
->ctlog_store
= CTLOG_STORE_new();
2402 if (ret
->ctlog_store
== NULL
)
2405 if (!ssl_create_cipher_list(ret
->method
,
2406 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
2407 SSL_DEFAULT_CIPHER_LIST
, ret
->cert
)
2408 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
2409 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
2413 ret
->param
= X509_VERIFY_PARAM_new();
2414 if (ret
->param
== NULL
)
2417 if ((ret
->md5
= EVP_get_digestbyname("ssl3-md5")) == NULL
) {
2418 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
2421 if ((ret
->sha1
= EVP_get_digestbyname("ssl3-sha1")) == NULL
) {
2422 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
2426 if ((ret
->client_CA
= sk_X509_NAME_new_null()) == NULL
)
2429 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
);
2431 /* No compression for DTLS */
2432 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
2433 ret
->comp_methods
= SSL_COMP_get_compression_methods();
2435 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2436 ret
->split_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2438 /* Setup RFC4507 ticket keys */
2439 if ((RAND_bytes(ret
->tlsext_tick_key_name
, 16) <= 0)
2440 || (RAND_bytes(ret
->tlsext_tick_hmac_key
, 16) <= 0)
2441 || (RAND_bytes(ret
->tlsext_tick_aes_key
, 16) <= 0))
2442 ret
->options
|= SSL_OP_NO_TICKET
;
2444 #ifndef OPENSSL_NO_SRP
2445 if (!SSL_CTX_SRP_CTX_init(ret
))
2448 #ifndef OPENSSL_NO_ENGINE
2449 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2450 # define eng_strx(x) #x
2451 # define eng_str(x) eng_strx(x)
2452 /* Use specific client engine automatically... ignore errors */
2455 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2458 ENGINE_load_builtin_engines();
2459 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2461 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
2467 * Default is to connect to non-RI servers. When RI is more widely
2468 * deployed might change this.
2470 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
2472 * Disable compression by default to prevent CRIME. Applications can
2473 * re-enable compression by configuring
2474 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
2475 * or by using the SSL_CONF library.
2477 ret
->options
|= SSL_OP_NO_COMPRESSION
;
2481 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
2487 void SSL_CTX_up_ref(SSL_CTX
*ctx
)
2490 CRYPTO_atomic_add(&ctx
->references
, 1, &i
, ctx
->lock
);
2493 void SSL_CTX_free(SSL_CTX
*a
)
2500 CRYPTO_atomic_add(&a
->references
, -1, &i
, a
->lock
);
2501 REF_PRINT_COUNT("SSL_CTX", a
);
2504 REF_ASSERT_ISNT(i
< 0);
2506 X509_VERIFY_PARAM_free(a
->param
);
2507 dane_ctx_final(&a
->dane
);
2510 * Free internal session cache. However: the remove_cb() may reference
2511 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2512 * after the sessions were flushed.
2513 * As the ex_data handling routines might also touch the session cache,
2514 * the most secure solution seems to be: empty (flush) the cache, then
2515 * free ex_data, then finally free the cache.
2516 * (See ticket [openssl.org #212].)
2518 if (a
->sessions
!= NULL
)
2519 SSL_CTX_flush_sessions(a
, 0);
2521 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
2522 lh_SSL_SESSION_free(a
->sessions
);
2523 X509_STORE_free(a
->cert_store
);
2524 #ifndef OPENSSL_NO_CT
2525 CTLOG_STORE_free(a
->ctlog_store
);
2527 sk_SSL_CIPHER_free(a
->cipher_list
);
2528 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
2529 ssl_cert_free(a
->cert
);
2530 sk_X509_NAME_pop_free(a
->client_CA
, X509_NAME_free
);
2531 sk_X509_pop_free(a
->extra_certs
, X509_free
);
2532 a
->comp_methods
= NULL
;
2533 #ifndef OPENSSL_NO_SRTP
2534 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
2536 #ifndef OPENSSL_NO_SRP
2537 SSL_CTX_SRP_CTX_free(a
);
2539 #ifndef OPENSSL_NO_ENGINE
2540 ENGINE_finish(a
->client_cert_engine
);
2543 #ifndef OPENSSL_NO_EC
2544 OPENSSL_free(a
->tlsext_ecpointformatlist
);
2545 OPENSSL_free(a
->tlsext_ellipticcurvelist
);
2547 OPENSSL_free(a
->alpn_client_proto_list
);
2549 CRYPTO_THREAD_lock_free(a
->lock
);
2554 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
2556 ctx
->default_passwd_callback
= cb
;
2559 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
2561 ctx
->default_passwd_callback_userdata
= u
;
2564 pem_password_cb
*SSL_CTX_get_default_passwd_cb(SSL_CTX
*ctx
)
2566 return ctx
->default_passwd_callback
;
2569 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX
*ctx
)
2571 return ctx
->default_passwd_callback_userdata
;
2574 void SSL_set_default_passwd_cb(SSL
*s
, pem_password_cb
*cb
)
2576 s
->default_passwd_callback
= cb
;
2579 void SSL_set_default_passwd_cb_userdata(SSL
*s
, void *u
)
2581 s
->default_passwd_callback_userdata
= u
;
2584 pem_password_cb
*SSL_get_default_passwd_cb(SSL
*s
)
2586 return s
->default_passwd_callback
;
2589 void *SSL_get_default_passwd_cb_userdata(SSL
*s
)
2591 return s
->default_passwd_callback_userdata
;
2594 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
2595 int (*cb
) (X509_STORE_CTX
*, void *),
2598 ctx
->app_verify_callback
= cb
;
2599 ctx
->app_verify_arg
= arg
;
2602 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
2603 int (*cb
) (int, X509_STORE_CTX
*))
2605 ctx
->verify_mode
= mode
;
2606 ctx
->default_verify_callback
= cb
;
2609 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
2611 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
2614 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
),
2617 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
2620 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
2622 ssl_cert_set_cert_cb(s
->cert
, cb
, arg
);
2625 void ssl_set_masks(SSL
*s
)
2627 #if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_GOST)
2631 uint32_t *pvalid
= s
->s3
->tmp
.valid_flags
;
2632 int rsa_enc
, rsa_sign
, dh_tmp
, dsa_sign
;
2633 unsigned long mask_k
, mask_a
;
2634 #ifndef OPENSSL_NO_EC
2635 int have_ecc_cert
, ecdsa_ok
;
2641 #ifndef OPENSSL_NO_DH
2642 dh_tmp
= (c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
|| c
->dh_tmp_auto
);
2647 rsa_enc
= pvalid
[SSL_PKEY_RSA_ENC
] & CERT_PKEY_VALID
;
2648 rsa_sign
= pvalid
[SSL_PKEY_RSA_SIGN
] & CERT_PKEY_SIGN
;
2649 dsa_sign
= pvalid
[SSL_PKEY_DSA_SIGN
] & CERT_PKEY_SIGN
;
2650 #ifndef OPENSSL_NO_EC
2651 have_ecc_cert
= pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_VALID
;
2657 fprintf(stderr
, "dht=%d re=%d rs=%d ds=%d\n",
2658 dh_tmp
, rsa_enc
, rsa_sign
, dsa_sign
);
2661 #ifndef OPENSSL_NO_GOST
2662 cpk
= &(c
->pkeys
[SSL_PKEY_GOST12_512
]);
2663 if (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
) {
2664 mask_k
|= SSL_kGOST
;
2665 mask_a
|= SSL_aGOST12
;
2667 cpk
= &(c
->pkeys
[SSL_PKEY_GOST12_256
]);
2668 if (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
) {
2669 mask_k
|= SSL_kGOST
;
2670 mask_a
|= SSL_aGOST12
;
2672 cpk
= &(c
->pkeys
[SSL_PKEY_GOST01
]);
2673 if (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
) {
2674 mask_k
|= SSL_kGOST
;
2675 mask_a
|= SSL_aGOST01
;
2685 if (rsa_enc
|| rsa_sign
) {
2693 mask_a
|= SSL_aNULL
;
2696 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
2697 * depending on the key usage extension.
2699 #ifndef OPENSSL_NO_EC
2700 if (have_ecc_cert
) {
2702 cpk
= &c
->pkeys
[SSL_PKEY_ECC
];
2704 ex_kusage
= X509_get_key_usage(x
);
2705 ecdsa_ok
= ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
;
2706 if (!(pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_SIGN
))
2709 mask_a
|= SSL_aECDSA
;
2713 #ifndef OPENSSL_NO_EC
2714 mask_k
|= SSL_kECDHE
;
2717 #ifndef OPENSSL_NO_PSK
2720 if (mask_k
& SSL_kRSA
)
2721 mask_k
|= SSL_kRSAPSK
;
2722 if (mask_k
& SSL_kDHE
)
2723 mask_k
|= SSL_kDHEPSK
;
2724 if (mask_k
& SSL_kECDHE
)
2725 mask_k
|= SSL_kECDHEPSK
;
2728 s
->s3
->tmp
.mask_k
= mask_k
;
2729 s
->s3
->tmp
.mask_a
= mask_a
;
2732 #ifndef OPENSSL_NO_EC
2734 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
2736 if (s
->s3
->tmp
.new_cipher
->algorithm_auth
& SSL_aECDSA
) {
2737 /* key usage, if present, must allow signing */
2738 if (!(X509_get_key_usage(x
) & X509v3_KU_DIGITAL_SIGNATURE
)) {
2739 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2740 SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
2744 return 1; /* all checks are ok */
2749 static int ssl_get_server_cert_index(const SSL
*s
)
2752 idx
= ssl_cipher_get_cert_index(s
->s3
->tmp
.new_cipher
);
2753 if (idx
== SSL_PKEY_RSA_ENC
&& !s
->cert
->pkeys
[SSL_PKEY_RSA_ENC
].x509
)
2754 idx
= SSL_PKEY_RSA_SIGN
;
2755 if (idx
== SSL_PKEY_GOST_EC
) {
2756 if (s
->cert
->pkeys
[SSL_PKEY_GOST12_512
].x509
)
2757 idx
= SSL_PKEY_GOST12_512
;
2758 else if (s
->cert
->pkeys
[SSL_PKEY_GOST12_256
].x509
)
2759 idx
= SSL_PKEY_GOST12_256
;
2760 else if (s
->cert
->pkeys
[SSL_PKEY_GOST01
].x509
)
2761 idx
= SSL_PKEY_GOST01
;
2766 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX
, ERR_R_INTERNAL_ERROR
);
2770 CERT_PKEY
*ssl_get_server_send_pkey(SSL
*s
)
2776 if (!s
->s3
|| !s
->s3
->tmp
.new_cipher
)
2780 i
= ssl_get_server_cert_index(s
);
2782 /* This may or may not be an error. */
2787 return &c
->pkeys
[i
];
2790 EVP_PKEY
*ssl_get_sign_pkey(SSL
*s
, const SSL_CIPHER
*cipher
,
2793 unsigned long alg_a
;
2797 alg_a
= cipher
->algorithm_auth
;
2800 if ((alg_a
& SSL_aDSS
) &&
2801 (c
->pkeys
[SSL_PKEY_DSA_SIGN
].privatekey
!= NULL
))
2802 idx
= SSL_PKEY_DSA_SIGN
;
2803 else if (alg_a
& SSL_aRSA
) {
2804 if (c
->pkeys
[SSL_PKEY_RSA_SIGN
].privatekey
!= NULL
)
2805 idx
= SSL_PKEY_RSA_SIGN
;
2806 else if (c
->pkeys
[SSL_PKEY_RSA_ENC
].privatekey
!= NULL
)
2807 idx
= SSL_PKEY_RSA_ENC
;
2808 } else if ((alg_a
& SSL_aECDSA
) &&
2809 (c
->pkeys
[SSL_PKEY_ECC
].privatekey
!= NULL
))
2812 SSLerr(SSL_F_SSL_GET_SIGN_PKEY
, ERR_R_INTERNAL_ERROR
);
2816 *pmd
= s
->s3
->tmp
.md
[idx
];
2817 return c
->pkeys
[idx
].privatekey
;
2820 int ssl_get_server_cert_serverinfo(SSL
*s
, const unsigned char **serverinfo
,
2821 size_t *serverinfo_length
)
2825 *serverinfo_length
= 0;
2828 i
= ssl_get_server_cert_index(s
);
2832 if (c
->pkeys
[i
].serverinfo
== NULL
)
2835 *serverinfo
= c
->pkeys
[i
].serverinfo
;
2836 *serverinfo_length
= c
->pkeys
[i
].serverinfo_length
;
2840 void ssl_update_cache(SSL
*s
, int mode
)
2845 * If the session_id_length is 0, we are not supposed to cache it, and it
2846 * would be rather hard to do anyway :-)
2848 if (s
->session
->session_id_length
== 0)
2851 i
= s
->session_ctx
->session_cache_mode
;
2852 if ((i
& mode
) && (!s
->hit
)
2853 && ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
)
2854 || SSL_CTX_add_session(s
->session_ctx
, s
->session
))
2855 && (s
->session_ctx
->new_session_cb
!= NULL
)) {
2856 SSL_SESSION_up_ref(s
->session
);
2857 if (!s
->session_ctx
->new_session_cb(s
, s
->session
))
2858 SSL_SESSION_free(s
->session
);
2861 /* auto flush every 255 connections */
2862 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
2863 if ((((mode
& SSL_SESS_CACHE_CLIENT
)
2864 ? s
->session_ctx
->stats
.sess_connect_good
2865 : s
->session_ctx
->stats
.sess_accept_good
) & 0xff) == 0xff) {
2866 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
2871 const SSL_METHOD
*SSL_CTX_get_ssl_method(SSL_CTX
*ctx
)
2876 const SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
2881 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
2885 if (s
->method
!= meth
) {
2886 const SSL_METHOD
*sm
= s
->method
;
2887 int (*hf
)(SSL
*) = s
->handshake_func
;
2889 if (sm
->version
== meth
->version
)
2894 ret
= s
->method
->ssl_new(s
);
2897 if (hf
== sm
->ssl_connect
)
2898 s
->handshake_func
= meth
->ssl_connect
;
2899 else if (hf
== sm
->ssl_accept
)
2900 s
->handshake_func
= meth
->ssl_accept
;
2905 int SSL_get_error(const SSL
*s
, int i
)
2912 return (SSL_ERROR_NONE
);
2915 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
2916 * where we do encode the error
2918 if ((l
= ERR_peek_error()) != 0) {
2919 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
2920 return (SSL_ERROR_SYSCALL
);
2922 return (SSL_ERROR_SSL
);
2925 if ((i
< 0) && SSL_want_read(s
)) {
2926 bio
= SSL_get_rbio(s
);
2927 if (BIO_should_read(bio
))
2928 return (SSL_ERROR_WANT_READ
);
2929 else if (BIO_should_write(bio
))
2931 * This one doesn't make too much sense ... We never try to write
2932 * to the rbio, and an application program where rbio and wbio
2933 * are separate couldn't even know what it should wait for.
2934 * However if we ever set s->rwstate incorrectly (so that we have
2935 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
2936 * wbio *are* the same, this test works around that bug; so it
2937 * might be safer to keep it.
2939 return (SSL_ERROR_WANT_WRITE
);
2940 else if (BIO_should_io_special(bio
)) {
2941 reason
= BIO_get_retry_reason(bio
);
2942 if (reason
== BIO_RR_CONNECT
)
2943 return (SSL_ERROR_WANT_CONNECT
);
2944 else if (reason
== BIO_RR_ACCEPT
)
2945 return (SSL_ERROR_WANT_ACCEPT
);
2947 return (SSL_ERROR_SYSCALL
); /* unknown */
2951 if ((i
< 0) && SSL_want_write(s
)) {
2952 bio
= SSL_get_wbio(s
);
2953 if (BIO_should_write(bio
))
2954 return (SSL_ERROR_WANT_WRITE
);
2955 else if (BIO_should_read(bio
))
2957 * See above (SSL_want_read(s) with BIO_should_write(bio))
2959 return (SSL_ERROR_WANT_READ
);
2960 else if (BIO_should_io_special(bio
)) {
2961 reason
= BIO_get_retry_reason(bio
);
2962 if (reason
== BIO_RR_CONNECT
)
2963 return (SSL_ERROR_WANT_CONNECT
);
2964 else if (reason
== BIO_RR_ACCEPT
)
2965 return (SSL_ERROR_WANT_ACCEPT
);
2967 return (SSL_ERROR_SYSCALL
);
2970 if ((i
< 0) && SSL_want_x509_lookup(s
)) {
2971 return (SSL_ERROR_WANT_X509_LOOKUP
);
2973 if ((i
< 0) && SSL_want_async(s
)) {
2974 return SSL_ERROR_WANT_ASYNC
;
2978 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
2979 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
2980 return (SSL_ERROR_ZERO_RETURN
);
2982 return (SSL_ERROR_SYSCALL
);
2985 static int ssl_do_handshake_intern(void *vargs
)
2987 struct ssl_async_args
*args
;
2990 args
= (struct ssl_async_args
*)vargs
;
2993 return s
->handshake_func(s
);
2996 int SSL_do_handshake(SSL
*s
)
3000 if (s
->handshake_func
== NULL
) {
3001 SSLerr(SSL_F_SSL_DO_HANDSHAKE
, SSL_R_CONNECTION_TYPE_NOT_SET
);
3005 s
->method
->ssl_renegotiate_check(s
);
3007 if (SSL_in_init(s
) || SSL_in_before(s
)) {
3008 if((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
3009 struct ssl_async_args args
;
3013 ret
= ssl_start_async_job(s
, &args
, ssl_do_handshake_intern
);
3015 ret
= s
->handshake_func(s
);
3021 void SSL_set_accept_state(SSL
*s
)
3025 ossl_statem_clear(s
);
3026 s
->handshake_func
= s
->method
->ssl_accept
;
3030 void SSL_set_connect_state(SSL
*s
)
3034 ossl_statem_clear(s
);
3035 s
->handshake_func
= s
->method
->ssl_connect
;
3039 int ssl_undefined_function(SSL
*s
)
3041 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3045 int ssl_undefined_void_function(void)
3047 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,
3048 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3052 int ssl_undefined_const_function(const SSL
*s
)
3057 SSL_METHOD
*ssl_bad_method(int ver
)
3059 SSLerr(SSL_F_SSL_BAD_METHOD
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3063 const char *SSL_get_version(const SSL
*s
)
3065 if (s
->version
== TLS1_2_VERSION
)
3067 else if (s
->version
== TLS1_1_VERSION
)
3069 else if (s
->version
== TLS1_VERSION
)
3071 else if (s
->version
== SSL3_VERSION
)
3073 else if (s
->version
== DTLS1_BAD_VER
)
3074 return ("DTLSv0.9");
3075 else if (s
->version
== DTLS1_VERSION
)
3077 else if (s
->version
== DTLS1_2_VERSION
)
3078 return ("DTLSv1.2");
3083 SSL
*SSL_dup(SSL
*s
)
3085 STACK_OF(X509_NAME
) *sk
;
3090 /* If we're not quiescent, just up_ref! */
3091 if (!SSL_in_init(s
) || !SSL_in_before(s
)) {
3092 CRYPTO_atomic_add(&s
->references
, 1, &i
, s
->lock
);
3097 * Otherwise, copy configuration state, and session if set.
3099 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
3102 if (s
->session
!= NULL
) {
3104 * Arranges to share the same session via up_ref. This "copies"
3105 * session-id, SSL_METHOD, sid_ctx, and 'cert'
3107 if (!SSL_copy_session_id(ret
, s
))
3111 * No session has been established yet, so we have to expect that
3112 * s->cert or ret->cert will be changed later -- they should not both
3113 * point to the same object, and thus we can't use
3114 * SSL_copy_session_id.
3116 if (!SSL_set_ssl_method(ret
, s
->method
))
3119 if (s
->cert
!= NULL
) {
3120 ssl_cert_free(ret
->cert
);
3121 ret
->cert
= ssl_cert_dup(s
->cert
);
3122 if (ret
->cert
== NULL
)
3126 if (!SSL_set_session_id_context(ret
, s
->sid_ctx
, s
->sid_ctx_length
))
3130 ssl_dane_dup(ret
, s
);
3131 ret
->version
= s
->version
;
3132 ret
->options
= s
->options
;
3133 ret
->mode
= s
->mode
;
3134 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
3135 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
3136 ret
->msg_callback
= s
->msg_callback
;
3137 ret
->msg_callback_arg
= s
->msg_callback_arg
;
3138 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
3139 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
3140 ret
->generate_session_id
= s
->generate_session_id
;
3142 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
3144 /* copy app data, a little dangerous perhaps */
3145 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
3148 /* setup rbio, and wbio */
3149 if (s
->rbio
!= NULL
) {
3150 if (!BIO_dup_state(s
->rbio
, (char *)&ret
->rbio
))
3153 if (s
->wbio
!= NULL
) {
3154 if (s
->wbio
!= s
->rbio
) {
3155 if (!BIO_dup_state(s
->wbio
, (char *)&ret
->wbio
))
3158 ret
->wbio
= ret
->rbio
;
3161 ret
->server
= s
->server
;
3162 if (s
->handshake_func
) {
3164 SSL_set_accept_state(ret
);
3166 SSL_set_connect_state(ret
);
3168 ret
->shutdown
= s
->shutdown
;
3171 ret
->default_passwd_callback
= s
->default_passwd_callback
;
3172 ret
->default_passwd_callback_userdata
= s
->default_passwd_callback_userdata
;
3174 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
3176 /* dup the cipher_list and cipher_list_by_id stacks */
3177 if (s
->cipher_list
!= NULL
) {
3178 if ((ret
->cipher_list
= sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
3181 if (s
->cipher_list_by_id
!= NULL
)
3182 if ((ret
->cipher_list_by_id
= sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
3186 /* Dup the client_CA list */
3187 if (s
->client_CA
!= NULL
) {
3188 if ((sk
= sk_X509_NAME_dup(s
->client_CA
)) == NULL
)
3190 ret
->client_CA
= sk
;
3191 for (i
= 0; i
< sk_X509_NAME_num(sk
); i
++) {
3192 xn
= sk_X509_NAME_value(sk
, i
);
3193 if (sk_X509_NAME_set(sk
, i
, X509_NAME_dup(xn
)) == NULL
) {
3206 void ssl_clear_cipher_ctx(SSL
*s
)
3208 if (s
->enc_read_ctx
!= NULL
) {
3209 EVP_CIPHER_CTX_free(s
->enc_read_ctx
);
3210 s
->enc_read_ctx
= NULL
;
3212 if (s
->enc_write_ctx
!= NULL
) {
3213 EVP_CIPHER_CTX_free(s
->enc_write_ctx
);
3214 s
->enc_write_ctx
= NULL
;
3216 #ifndef OPENSSL_NO_COMP
3217 COMP_CTX_free(s
->expand
);
3219 COMP_CTX_free(s
->compress
);
3224 X509
*SSL_get_certificate(const SSL
*s
)
3226 if (s
->cert
!= NULL
)
3227 return (s
->cert
->key
->x509
);
3232 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
3234 if (s
->cert
!= NULL
)
3235 return (s
->cert
->key
->privatekey
);
3240 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
3242 if (ctx
->cert
!= NULL
)
3243 return ctx
->cert
->key
->x509
;
3248 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
3250 if (ctx
->cert
!= NULL
)
3251 return ctx
->cert
->key
->privatekey
;
3256 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
3258 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
3259 return (s
->session
->cipher
);
3263 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
3265 #ifndef OPENSSL_NO_COMP
3266 return s
->compress
? COMP_CTX_get_method(s
->compress
) : NULL
;
3272 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
3274 #ifndef OPENSSL_NO_COMP
3275 return s
->expand
? COMP_CTX_get_method(s
->expand
) : NULL
;
3281 int ssl_init_wbio_buffer(SSL
*s
, int push
)
3285 if (s
->bbio
== NULL
) {
3286 bbio
= BIO_new(BIO_f_buffer());
3292 if (s
->bbio
== s
->wbio
)
3293 s
->wbio
= BIO_pop(s
->wbio
);
3295 (void)BIO_reset(bbio
);
3296 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
3297 if (!BIO_set_read_buffer_size(bbio
, 1)) {
3298 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
, ERR_R_BUF_LIB
);
3302 if (s
->wbio
!= bbio
)
3303 s
->wbio
= BIO_push(bbio
, s
->wbio
);
3305 if (s
->wbio
== bbio
)
3306 s
->wbio
= BIO_pop(bbio
);
3311 void ssl_free_wbio_buffer(SSL
*s
)
3313 /* callers ensure s is never null */
3314 if (s
->bbio
== NULL
)
3317 if (s
->bbio
== s
->wbio
) {
3318 /* remove buffering */
3319 s
->wbio
= BIO_pop(s
->wbio
);
3322 * not the usual REF_DEBUG, but this avoids
3323 * adding one more preprocessor symbol
3325 assert(s
->wbio
!= NULL
);
3332 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
3334 ctx
->quiet_shutdown
= mode
;
3337 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
3339 return (ctx
->quiet_shutdown
);
3342 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
3344 s
->quiet_shutdown
= mode
;
3347 int SSL_get_quiet_shutdown(const SSL
*s
)
3349 return (s
->quiet_shutdown
);
3352 void SSL_set_shutdown(SSL
*s
, int mode
)
3357 int SSL_get_shutdown(const SSL
*s
)
3359 return (s
->shutdown
);
3362 int SSL_version(const SSL
*s
)
3364 return (s
->version
);
3367 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
3372 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
3375 if (ssl
->ctx
== ctx
)
3378 ctx
= ssl
->initial_ctx
;
3379 new_cert
= ssl_cert_dup(ctx
->cert
);
3380 if (new_cert
== NULL
) {
3383 ssl_cert_free(ssl
->cert
);
3384 ssl
->cert
= new_cert
;
3387 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
3388 * so setter APIs must prevent invalid lengths from entering the system.
3390 OPENSSL_assert(ssl
->sid_ctx_length
<= sizeof(ssl
->sid_ctx
));
3393 * If the session ID context matches that of the parent SSL_CTX,
3394 * inherit it from the new SSL_CTX as well. If however the context does
3395 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
3396 * leave it unchanged.
3398 if ((ssl
->ctx
!= NULL
) &&
3399 (ssl
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
3400 (memcmp(ssl
->sid_ctx
, ssl
->ctx
->sid_ctx
, ssl
->sid_ctx_length
) == 0)) {
3401 ssl
->sid_ctx_length
= ctx
->sid_ctx_length
;
3402 memcpy(&ssl
->sid_ctx
, &ctx
->sid_ctx
, sizeof(ssl
->sid_ctx
));
3405 SSL_CTX_up_ref(ctx
);
3406 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
3412 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
3414 return (X509_STORE_set_default_paths(ctx
->cert_store
));
3417 int SSL_CTX_set_default_verify_dir(SSL_CTX
*ctx
)
3419 X509_LOOKUP
*lookup
;
3421 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_hash_dir());
3424 X509_LOOKUP_add_dir(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
3426 /* Clear any errors if the default directory does not exist */
3432 int SSL_CTX_set_default_verify_file(SSL_CTX
*ctx
)
3434 X509_LOOKUP
*lookup
;
3436 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_file());
3440 X509_LOOKUP_load_file(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
3442 /* Clear any errors if the default file does not exist */
3448 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
3451 return (X509_STORE_load_locations(ctx
->cert_store
, CAfile
, CApath
));
3454 void SSL_set_info_callback(SSL
*ssl
,
3455 void (*cb
) (const SSL
*ssl
, int type
, int val
))
3457 ssl
->info_callback
= cb
;
3461 * One compiler (Diab DCC) doesn't like argument names in returned function
3464 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
3467 return ssl
->info_callback
;
3470 void SSL_set_verify_result(SSL
*ssl
, long arg
)
3472 ssl
->verify_result
= arg
;
3475 long SSL_get_verify_result(const SSL
*ssl
)
3477 return (ssl
->verify_result
);
3480 size_t SSL_get_client_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
3483 return sizeof(ssl
->s3
->client_random
);
3484 if (outlen
> sizeof(ssl
->s3
->client_random
))
3485 outlen
= sizeof(ssl
->s3
->client_random
);
3486 memcpy(out
, ssl
->s3
->client_random
, outlen
);
3490 size_t SSL_get_server_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
3493 return sizeof(ssl
->s3
->server_random
);
3494 if (outlen
> sizeof(ssl
->s3
->server_random
))
3495 outlen
= sizeof(ssl
->s3
->server_random
);
3496 memcpy(out
, ssl
->s3
->server_random
, outlen
);
3500 size_t SSL_SESSION_get_master_key(const SSL_SESSION
*session
,
3501 unsigned char *out
, size_t outlen
)
3503 if (session
->master_key_length
< 0) {
3504 /* Should never happen */
3508 return session
->master_key_length
;
3509 if (outlen
> (size_t)session
->master_key_length
)
3510 outlen
= session
->master_key_length
;
3511 memcpy(out
, session
->master_key
, outlen
);
3515 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
3517 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
3520 void *SSL_get_ex_data(const SSL
*s
, int idx
)
3522 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
3525 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
3527 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
3530 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
3532 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
3540 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
3542 return (ctx
->cert_store
);
3545 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
3547 X509_STORE_free(ctx
->cert_store
);
3548 ctx
->cert_store
= store
;
3551 int SSL_want(const SSL
*s
)
3553 return (s
->rwstate
);
3557 * \brief Set the callback for generating temporary DH keys.
3558 * \param ctx the SSL context.
3559 * \param dh the callback
3562 #ifndef OPENSSL_NO_DH
3563 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,
3564 DH
*(*dh
) (SSL
*ssl
, int is_export
,
3567 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
3570 void SSL_set_tmp_dh_callback(SSL
*ssl
, DH
*(*dh
) (SSL
*ssl
, int is_export
,
3573 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
3577 #ifndef OPENSSL_NO_PSK
3578 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
3580 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3581 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
,
3582 SSL_R_DATA_LENGTH_TOO_LONG
);
3585 OPENSSL_free(ctx
->cert
->psk_identity_hint
);
3586 if (identity_hint
!= NULL
) {
3587 ctx
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
3588 if (ctx
->cert
->psk_identity_hint
== NULL
)
3591 ctx
->cert
->psk_identity_hint
= NULL
;
3595 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
3600 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3601 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
3604 OPENSSL_free(s
->cert
->psk_identity_hint
);
3605 if (identity_hint
!= NULL
) {
3606 s
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
3607 if (s
->cert
->psk_identity_hint
== NULL
)
3610 s
->cert
->psk_identity_hint
= NULL
;
3614 const char *SSL_get_psk_identity_hint(const SSL
*s
)
3616 if (s
== NULL
|| s
->session
== NULL
)
3618 return (s
->session
->psk_identity_hint
);
3621 const char *SSL_get_psk_identity(const SSL
*s
)
3623 if (s
== NULL
|| s
->session
== NULL
)
3625 return (s
->session
->psk_identity
);
3628 void SSL_set_psk_client_callback(SSL
*s
,
3629 unsigned int (*cb
) (SSL
*ssl
,
3638 s
->psk_client_callback
= cb
;
3641 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
,
3642 unsigned int (*cb
) (SSL
*ssl
,
3651 ctx
->psk_client_callback
= cb
;
3654 void SSL_set_psk_server_callback(SSL
*s
,
3655 unsigned int (*cb
) (SSL
*ssl
,
3656 const char *identity
,
3661 s
->psk_server_callback
= cb
;
3664 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
,
3665 unsigned int (*cb
) (SSL
*ssl
,
3666 const char *identity
,
3671 ctx
->psk_server_callback
= cb
;
3675 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
3676 void (*cb
) (int write_p
, int version
,
3677 int content_type
, const void *buf
,
3678 size_t len
, SSL
*ssl
, void *arg
))
3680 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
3683 void SSL_set_msg_callback(SSL
*ssl
,
3684 void (*cb
) (int write_p
, int version
,
3685 int content_type
, const void *buf
,
3686 size_t len
, SSL
*ssl
, void *arg
))
3688 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
3691 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
3692 int (*cb
) (SSL
*ssl
,
3696 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
3697 (void (*)(void))cb
);
3700 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
3701 int (*cb
) (SSL
*ssl
,
3702 int is_forward_secure
))
3704 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
3705 (void (*)(void))cb
);
3709 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3710 * vairable, freeing EVP_MD_CTX previously stored in that variable, if any.
3711 * If EVP_MD pointer is passed, initializes ctx with this md Returns newly
3715 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
3717 ssl_clear_hash_ctx(hash
);
3718 *hash
= EVP_MD_CTX_new();
3719 if (*hash
== NULL
|| (md
&& EVP_DigestInit_ex(*hash
, md
, NULL
) <= 0)) {
3720 EVP_MD_CTX_free(*hash
);
3727 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
3731 EVP_MD_CTX_free(*hash
);
3735 /* Retrieve handshake hashes */
3736 int ssl_handshake_hash(SSL
*s
, unsigned char *out
, int outlen
)
3738 EVP_MD_CTX
*ctx
= NULL
;
3739 EVP_MD_CTX
*hdgst
= s
->s3
->handshake_dgst
;
3740 int ret
= EVP_MD_CTX_size(hdgst
);
3741 if (ret
< 0 || ret
> outlen
) {
3745 ctx
= EVP_MD_CTX_new();
3750 if (!EVP_MD_CTX_copy_ex(ctx
, hdgst
)
3751 || EVP_DigestFinal_ex(ctx
, out
, NULL
) <= 0)
3754 EVP_MD_CTX_free(ctx
);
3758 int SSL_session_reused(SSL
*s
)
3763 int SSL_is_server(SSL
*s
)
3768 #if OPENSSL_API_COMPAT < 0x10100000L
3769 void SSL_set_debug(SSL
*s
, int debug
)
3771 /* Old function was do-nothing anyway... */
3778 void SSL_set_security_level(SSL
*s
, int level
)
3780 s
->cert
->sec_level
= level
;
3783 int SSL_get_security_level(const SSL
*s
)
3785 return s
->cert
->sec_level
;
3788 void SSL_set_security_callback(SSL
*s
,
3789 int (*cb
) (SSL
*s
, SSL_CTX
*ctx
, int op
,
3790 int bits
, int nid
, void *other
,
3793 s
->cert
->sec_cb
= cb
;
3796 int (*SSL_get_security_callback(const SSL
*s
)) (SSL
*s
, SSL_CTX
*ctx
, int op
,
3798 void *other
, void *ex
) {
3799 return s
->cert
->sec_cb
;
3802 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
3804 s
->cert
->sec_ex
= ex
;
3807 void *SSL_get0_security_ex_data(const SSL
*s
)
3809 return s
->cert
->sec_ex
;
3812 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
3814 ctx
->cert
->sec_level
= level
;
3817 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
3819 return ctx
->cert
->sec_level
;
3822 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
3823 int (*cb
) (SSL
*s
, SSL_CTX
*ctx
, int op
,
3824 int bits
, int nid
, void *other
,
3827 ctx
->cert
->sec_cb
= cb
;
3830 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (SSL
*s
,
3836 return ctx
->cert
->sec_cb
;
3839 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
3841 ctx
->cert
->sec_ex
= ex
;
3844 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
3846 return ctx
->cert
->sec_ex
;
3851 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
3852 * can return unsigned long, instead of the generic long return value from the
3853 * control interface.
3855 unsigned long SSL_CTX_get_options(const SSL_CTX
*ctx
)
3857 return ctx
->options
;
3859 unsigned long SSL_get_options(const SSL
* s
)
3863 unsigned long SSL_CTX_set_options(SSL_CTX
*ctx
, unsigned long op
)
3865 return ctx
->options
|= op
;
3867 unsigned long SSL_set_options(SSL
*s
, unsigned long op
)
3869 return s
->options
|= op
;
3871 unsigned long SSL_CTX_clear_options(SSL_CTX
*ctx
, unsigned long op
)
3873 return ctx
->options
&= ~op
;
3875 unsigned long SSL_clear_options(SSL
*s
, unsigned long op
)
3877 return s
->options
&= ~op
;
3880 STACK_OF(X509
) *SSL_get0_verified_chain(const SSL
*s
)
3882 return s
->verified_chain
;
3885 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
3887 #ifndef OPENSSL_NO_CT
3890 * Moves SCTs from the |src| stack to the |dst| stack.
3891 * The source of each SCT will be set to |origin|.
3892 * If |dst| points to a NULL pointer, a new stack will be created and owned by
3894 * Returns the number of SCTs moved, or a negative integer if an error occurs.
3896 static int ct_move_scts(STACK_OF(SCT
) **dst
, STACK_OF(SCT
) *src
, sct_source_t origin
)
3902 *dst
= sk_SCT_new_null();
3904 SSLerr(SSL_F_CT_MOVE_SCTS
, ERR_R_MALLOC_FAILURE
);
3909 while ((sct
= sk_SCT_pop(src
)) != NULL
) {
3910 if (SCT_set_source(sct
, origin
) != 1)
3913 if (sk_SCT_push(*dst
, sct
) <= 0)
3921 sk_SCT_push(src
, sct
); /* Put the SCT back */
3926 * Look for data collected during ServerHello and parse if found.
3927 * Return 1 on success, 0 on failure.
3929 static int ct_extract_tls_extension_scts(SSL
*s
)
3931 int scts_extracted
= 0;
3933 if (s
->tlsext_scts
!= NULL
) {
3934 const unsigned char *p
= s
->tlsext_scts
;
3935 STACK_OF(SCT
) *scts
= o2i_SCT_LIST(NULL
, &p
, s
->tlsext_scts_len
);
3937 scts_extracted
= ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_TLS_EXTENSION
);
3939 SCT_LIST_free(scts
);
3942 return scts_extracted
;
3946 * Checks for an OCSP response and then attempts to extract any SCTs found if it
3947 * contains an SCT X509 extension. They will be stored in |s->scts|.
3949 * - The number of SCTs extracted, assuming an OCSP response exists.
3950 * - 0 if no OCSP response exists or it contains no SCTs.
3951 * - A negative integer if an error occurs.
3953 static int ct_extract_ocsp_response_scts(SSL
*s
)
3955 int scts_extracted
= 0;
3956 const unsigned char *p
;
3957 OCSP_BASICRESP
*br
= NULL
;
3958 OCSP_RESPONSE
*rsp
= NULL
;
3959 STACK_OF(SCT
) *scts
= NULL
;
3962 if (s
->tlsext_ocsp_resp
== NULL
|| s
->tlsext_ocsp_resplen
== 0)
3965 p
= s
->tlsext_ocsp_resp
;
3966 rsp
= d2i_OCSP_RESPONSE(NULL
, &p
, s
->tlsext_ocsp_resplen
);
3970 br
= OCSP_response_get1_basic(rsp
);
3974 for (i
= 0; i
< OCSP_resp_count(br
); ++i
) {
3975 OCSP_SINGLERESP
*single
= OCSP_resp_get0(br
, i
);
3980 scts
= OCSP_SINGLERESP_get1_ext_d2i(single
, NID_ct_cert_scts
, NULL
, NULL
);
3981 scts_extracted
= ct_move_scts(&s
->scts
, scts
,
3982 SCT_SOURCE_OCSP_STAPLED_RESPONSE
);
3983 if (scts_extracted
< 0)
3987 SCT_LIST_free(scts
);
3988 OCSP_BASICRESP_free(br
);
3989 OCSP_RESPONSE_free(rsp
);
3990 return scts_extracted
;
3994 * Attempts to extract SCTs from the peer certificate.
3995 * Return the number of SCTs extracted, or a negative integer if an error
3998 static int ct_extract_x509v3_extension_scts(SSL
*s
)
4000 int scts_extracted
= 0;
4001 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4004 STACK_OF(SCT
) *scts
=
4005 X509_get_ext_d2i(cert
, NID_ct_precert_scts
, NULL
, NULL
);
4008 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_X509V3_EXTENSION
);
4010 SCT_LIST_free(scts
);
4013 return scts_extracted
;
4017 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
4018 * response (if it exists) and X509v3 extensions in the certificate.
4019 * Returns NULL if an error occurs.
4021 const STACK_OF(SCT
) *SSL_get0_peer_scts(SSL
*s
)
4023 if (!s
->scts_parsed
) {
4024 if (ct_extract_tls_extension_scts(s
) < 0 ||
4025 ct_extract_ocsp_response_scts(s
) < 0 ||
4026 ct_extract_x509v3_extension_scts(s
) < 0)
4036 int SSL_set_ct_validation_callback(SSL
*s
, ct_validation_cb callback
, void *arg
)
4041 * Since code exists that uses the custom extension handler for CT, look
4042 * for this and throw an error if they have already registered to use CT.
4044 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(s
->ctx
,
4045 TLSEXT_TYPE_signed_certificate_timestamp
)) {
4046 SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK
,
4047 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4051 s
->ct_validation_callback
= callback
;
4052 s
->ct_validation_callback_arg
= arg
;
4054 if (callback
!= NULL
) {
4055 /* If we are validating CT, then we MUST accept SCTs served via OCSP */
4056 if (!SSL_set_tlsext_status_type(s
, TLSEXT_STATUSTYPE_ocsp
))
4065 int SSL_CTX_set_ct_validation_callback(SSL_CTX
*ctx
, ct_validation_cb callback
,
4071 * Since code exists that uses the custom extension handler for CT, look for
4072 * this and throw an error if they have already registered to use CT.
4074 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(ctx
,
4075 TLSEXT_TYPE_signed_certificate_timestamp
)) {
4076 SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK
,
4077 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4081 ctx
->ct_validation_callback
= callback
;
4082 ctx
->ct_validation_callback_arg
= arg
;
4088 ct_validation_cb
SSL_get_ct_validation_callback(const SSL
*s
)
4090 return s
->ct_validation_callback
;
4093 ct_validation_cb
SSL_CTX_get_ct_validation_callback(const SSL_CTX
*ctx
)
4095 return ctx
->ct_validation_callback
;
4098 int ssl_validate_ct(SSL
*s
)
4101 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4102 X509
*issuer
= NULL
;
4103 CT_POLICY_EVAL_CTX
*ctx
= NULL
;
4104 const STACK_OF(SCT
) *scts
;
4106 /* If no callback is set, attempt no validation - just return success */
4107 if (s
->ct_validation_callback
== NULL
)
4111 SSLerr(SSL_F_SSL_VALIDATE_CT
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
4115 if (s
->verified_chain
!= NULL
&& sk_X509_num(s
->verified_chain
) > 1)
4116 issuer
= sk_X509_value(s
->verified_chain
, 1);
4118 ctx
= CT_POLICY_EVAL_CTX_new();
4120 SSLerr(SSL_F_SSL_VALIDATE_CT
, ERR_R_MALLOC_FAILURE
);
4124 CT_POLICY_EVAL_CTX_set0_cert(ctx
, cert
);
4125 CT_POLICY_EVAL_CTX_set0_issuer(ctx
, issuer
);
4126 CT_POLICY_EVAL_CTX_set0_log_store(ctx
, s
->ctx
->ctlog_store
);
4128 scts
= SSL_get0_peer_scts(s
);
4130 if (SCT_LIST_validate(scts
, ctx
) != 1) {
4131 SSLerr(SSL_F_SSL_VALIDATE_CT
, SSL_R_SCT_VERIFICATION_FAILED
);
4135 ret
= s
->ct_validation_callback(ctx
, scts
, s
->ct_validation_callback_arg
);
4137 ret
= 0; /* This function returns 0 on failure */
4140 CT_POLICY_EVAL_CTX_free(ctx
);
4144 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX
*ctx
)
4146 return CTLOG_STORE_load_default_file(ctx
->ctlog_store
);
4149 int SSL_CTX_set_ctlog_list_file(SSL_CTX
*ctx
, const char *path
)
4151 return CTLOG_STORE_load_file(ctx
->ctlog_store
, path
);