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 #include <openssl/dh.h>
156 #include <openssl/engine.h>
157 #include <openssl/async.h>
158 #include <openssl/ct.h>
160 const char SSL_version_str
[] = OPENSSL_VERSION_TEXT
;
162 SSL3_ENC_METHOD ssl3_undef_enc_method
= {
164 * evil casts, but these functions are only called if there's a library
167 (int (*)(SSL
*, SSL3_RECORD
*, unsigned int, int))ssl_undefined_function
,
168 (int (*)(SSL
*, SSL3_RECORD
*, unsigned char *, int))ssl_undefined_function
,
169 ssl_undefined_function
,
170 (int (*)(SSL
*, unsigned char *, unsigned char *, int))
171 ssl_undefined_function
,
172 (int (*)(SSL
*, int))ssl_undefined_function
,
173 (int (*)(SSL
*, const char *, int, unsigned char *))
174 ssl_undefined_function
,
175 0, /* finish_mac_length */
176 NULL
, /* client_finished_label */
177 0, /* client_finished_label_len */
178 NULL
, /* server_finished_label */
179 0, /* server_finished_label_len */
180 (int (*)(int))ssl_undefined_function
,
181 (int (*)(SSL
*, unsigned char *, size_t, const char *,
182 size_t, const unsigned char *, size_t,
183 int use_context
))ssl_undefined_function
,
186 struct ssl_async_args
{
190 enum { READFUNC
, WRITEFUNC
, OTHERFUNC
} type
;
192 int (*func_read
)(SSL
*, void *, int);
193 int (*func_write
)(SSL
*, const void *, int);
194 int (*func_other
)(SSL
*);
198 static const struct {
203 { DANETLS_MATCHING_FULL
, 0, NID_undef
},
204 { DANETLS_MATCHING_2256
, 1, NID_sha256
},
205 { DANETLS_MATCHING_2512
, 2, NID_sha512
},
208 static int dane_ctx_enable(struct dane_ctx_st
*dctx
)
210 const EVP_MD
**mdevp
;
212 uint8_t mdmax
= DANETLS_MATCHING_LAST
;
213 int n
= ((int) mdmax
) + 1; /* int to handle PrivMatch(255) */
216 mdevp
= OPENSSL_zalloc(n
* sizeof(*mdevp
));
217 mdord
= OPENSSL_zalloc(n
* sizeof(*mdord
));
219 if (mdord
== NULL
|| mdevp
== NULL
) {
221 SSLerr(SSL_F_DANE_CTX_ENABLE
, ERR_R_MALLOC_FAILURE
);
225 /* Install default entries */
226 for (i
= 0; i
< OSSL_NELEM(dane_mds
); ++i
) {
229 if (dane_mds
[i
].nid
== NID_undef
||
230 (md
= EVP_get_digestbynid(dane_mds
[i
].nid
)) == NULL
)
232 mdevp
[dane_mds
[i
].mtype
] = md
;
233 mdord
[dane_mds
[i
].mtype
] = dane_mds
[i
].ord
;
243 static void dane_ctx_final(struct dane_ctx_st
*dctx
)
245 OPENSSL_free(dctx
->mdevp
);
248 OPENSSL_free(dctx
->mdord
);
253 static void tlsa_free(danetls_record
*t
)
257 OPENSSL_free(t
->data
);
258 EVP_PKEY_free(t
->spki
);
262 static void dane_final(struct dane_st
*dane
)
264 sk_danetls_record_pop_free(dane
->trecs
, tlsa_free
);
267 sk_X509_pop_free(dane
->certs
, X509_free
);
270 X509_free(dane
->mcert
);
278 * dane_copy - Copy dane configuration, sans verification state.
280 static int ssl_dane_dup(SSL
*to
, SSL
*from
)
285 if (!DANETLS_ENABLED(&from
->dane
))
288 dane_final(&to
->dane
);
290 num
= sk_danetls_record_num(from
->dane
.trecs
);
291 for (i
= 0; i
< num
; ++i
) {
292 danetls_record
*t
= sk_danetls_record_value(from
->dane
.trecs
, i
);
293 if (SSL_dane_tlsa_add(to
, t
->usage
, t
->selector
, t
->mtype
,
294 t
->data
, t
->dlen
) <= 0)
300 static int dane_mtype_set(
301 struct dane_ctx_st
*dctx
,
308 if (mtype
== DANETLS_MATCHING_FULL
&& md
!= NULL
) {
309 SSLerr(SSL_F_DANE_MTYPE_SET
,
310 SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL
);
314 if (mtype
> dctx
->mdmax
) {
315 const EVP_MD
**mdevp
;
317 int n
= ((int) mtype
) + 1;
319 mdevp
= OPENSSL_realloc(dctx
->mdevp
, n
* sizeof(*mdevp
));
321 SSLerr(SSL_F_DANE_MTYPE_SET
, ERR_R_MALLOC_FAILURE
);
326 mdord
= OPENSSL_realloc(dctx
->mdord
, n
* sizeof(*mdord
));
328 SSLerr(SSL_F_DANE_MTYPE_SET
, ERR_R_MALLOC_FAILURE
);
333 /* Zero-fill any gaps */
334 for (i
= dctx
->mdmax
+1; i
< mtype
; ++i
) {
342 dctx
->mdevp
[mtype
] = md
;
343 /* Coerce ordinal of disabled matching types to 0 */
344 dctx
->mdord
[mtype
] = (md
== NULL
) ? 0 : ord
;
349 static const EVP_MD
*tlsa_md_get(struct dane_st
*dane
, uint8_t mtype
)
351 if (mtype
> dane
->dctx
->mdmax
)
353 return dane
->dctx
->mdevp
[mtype
];
356 static int dane_tlsa_add(
357 struct dane_st
*dane
,
365 const EVP_MD
*md
= NULL
;
366 int ilen
= (int)dlen
;
369 if (dane
->trecs
== NULL
) {
370 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_NOT_ENABLED
);
374 if (ilen
< 0 || dlen
!= (size_t)ilen
) {
375 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_DATA_LENGTH
);
379 if (usage
> DANETLS_USAGE_LAST
) {
380 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE
);
384 if (selector
> DANETLS_SELECTOR_LAST
) {
385 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_SELECTOR
);
389 if (mtype
!= DANETLS_MATCHING_FULL
) {
390 md
= tlsa_md_get(dane
, mtype
);
392 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE
);
397 if (md
!= NULL
&& dlen
!= (size_t)EVP_MD_size(md
)) {
398 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH
);
402 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_NULL_DATA
);
406 if ((t
= OPENSSL_zalloc(sizeof(*t
))) == NULL
) {
407 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
412 t
->selector
= selector
;
414 t
->data
= OPENSSL_malloc(ilen
);
415 if (t
->data
== NULL
) {
417 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
420 memcpy(t
->data
, data
, ilen
);
423 /* Validate and cache full certificate or public key */
424 if (mtype
== DANETLS_MATCHING_FULL
) {
425 const unsigned char *p
= data
;
427 EVP_PKEY
*pkey
= NULL
;
430 case DANETLS_SELECTOR_CERT
:
431 if (!d2i_X509(&cert
, &p
, dlen
) || p
< data
||
432 dlen
!= (size_t)(p
- data
)) {
434 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
437 if (X509_get0_pubkey(cert
) == NULL
) {
439 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_CERTIFICATE
);
443 if ((DANETLS_USAGE_BIT(usage
) & DANETLS_TA_MASK
) == 0) {
449 * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA
450 * records that contain full certificates of trust-anchors that are
451 * not present in the wire chain. For usage PKIX-TA(0), we augment
452 * the chain with untrusted Full(0) certificates from DNS, in case
453 * they are missing from the chain.
455 if ((dane
->certs
== NULL
&&
456 (dane
->certs
= sk_X509_new_null()) == NULL
) ||
457 !sk_X509_push(dane
->certs
, cert
)) {
458 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
465 case DANETLS_SELECTOR_SPKI
:
466 if (!d2i_PUBKEY(&pkey
, &p
, dlen
) || p
< data
||
467 dlen
!= (size_t)(p
- data
)) {
469 SSLerr(SSL_F_DANE_TLSA_ADD
, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY
);
474 * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA
475 * records that contain full bare keys of trust-anchors that are
476 * not present in the wire chain.
478 if (usage
== DANETLS_USAGE_DANE_TA
)
487 * Find the right insertion point for the new record.
489 * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that
490 * they can be processed first, as they require no chain building, and no
491 * expiration or hostname checks. Because DANE-EE(3) is numerically
492 * largest, this is accomplished via descending sort by "usage".
494 * We also sort in descending order by matching ordinal to simplify
495 * the implementation of digest agility in the verification code.
497 * The choice of order for the selector is not significant, so we
498 * use the same descending order for consistency.
500 for (i
= 0; i
< sk_danetls_record_num(dane
->trecs
); ++i
) {
501 danetls_record
*rec
= sk_danetls_record_value(dane
->trecs
, i
);
502 if (rec
->usage
> usage
)
504 if (rec
->usage
< usage
)
506 if (rec
->selector
> selector
)
508 if (rec
->selector
< selector
)
510 if (dane
->dctx
->mdord
[rec
->mtype
] > dane
->dctx
->mdord
[mtype
])
515 if (!sk_danetls_record_insert(dane
->trecs
, t
, i
)) {
517 SSLerr(SSL_F_DANE_TLSA_ADD
, ERR_R_MALLOC_FAILURE
);
520 dane
->umask
|= DANETLS_USAGE_BIT(usage
);
525 static void clear_ciphers(SSL
*s
)
527 /* clear the current cipher */
528 ssl_clear_cipher_ctx(s
);
529 ssl_clear_hash_ctx(&s
->read_hash
);
530 ssl_clear_hash_ctx(&s
->write_hash
);
533 int SSL_clear(SSL
*s
)
535 if (s
->method
== NULL
) {
536 SSLerr(SSL_F_SSL_CLEAR
, SSL_R_NO_METHOD_SPECIFIED
);
540 if (ssl_clear_bad_session(s
)) {
541 SSL_SESSION_free(s
->session
);
549 if (s
->renegotiate
) {
550 SSLerr(SSL_F_SSL_CLEAR
, ERR_R_INTERNAL_ERROR
);
554 ossl_statem_clear(s
);
556 s
->version
= s
->method
->version
;
557 s
->client_version
= s
->version
;
558 s
->rwstate
= SSL_NOTHING
;
560 BUF_MEM_free(s
->init_buf
);
565 /* Reset DANE verification result state */
568 X509_free(s
->dane
.mcert
);
569 s
->dane
.mcert
= NULL
;
570 s
->dane
.mtlsa
= NULL
;
572 /* Clear the verification result peername */
573 X509_VERIFY_PARAM_move_peername(s
->param
, NULL
);
576 * Check to see if we were changed into a different method, if so, revert
577 * back if we are not doing session-id reuse.
579 if (!ossl_statem_get_in_handshake(s
) && (s
->session
== NULL
)
580 && (s
->method
!= s
->ctx
->method
)) {
581 s
->method
->ssl_free(s
);
582 s
->method
= s
->ctx
->method
;
583 if (!s
->method
->ssl_new(s
))
586 s
->method
->ssl_clear(s
);
588 RECORD_LAYER_clear(&s
->rlayer
);
593 /** Used to change an SSL_CTXs default SSL method type */
594 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
, const SSL_METHOD
*meth
)
596 STACK_OF(SSL_CIPHER
) *sk
;
600 sk
= ssl_create_cipher_list(ctx
->method
, &(ctx
->cipher_list
),
601 &(ctx
->cipher_list_by_id
),
602 SSL_DEFAULT_CIPHER_LIST
, ctx
->cert
);
603 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0)) {
604 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
,
605 SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
611 SSL
*SSL_new(SSL_CTX
*ctx
)
616 SSLerr(SSL_F_SSL_NEW
, SSL_R_NULL_SSL_CTX
);
619 if (ctx
->method
== NULL
) {
620 SSLerr(SSL_F_SSL_NEW
, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
624 s
= OPENSSL_zalloc(sizeof(*s
));
628 s
->lock
= CRYPTO_THREAD_lock_new();
629 if (s
->lock
== NULL
) {
630 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
635 RECORD_LAYER_init(&s
->rlayer
, s
);
637 s
->options
= ctx
->options
;
638 s
->min_proto_version
= ctx
->min_proto_version
;
639 s
->max_proto_version
= ctx
->max_proto_version
;
641 s
->max_cert_list
= ctx
->max_cert_list
;
645 * Earlier library versions used to copy the pointer to the CERT, not
646 * its contents; only when setting new parameters for the per-SSL
647 * copy, ssl_cert_new would be called (and the direct reference to
648 * the per-SSL_CTX settings would be lost, but those still were
649 * indirectly accessed for various purposes, and for that reason they
650 * used to be known as s->ctx->default_cert). Now we don't look at the
651 * SSL_CTX's CERT after having duplicated it once.
653 s
->cert
= ssl_cert_dup(ctx
->cert
);
657 RECORD_LAYER_set_read_ahead(&s
->rlayer
, ctx
->read_ahead
);
658 s
->msg_callback
= ctx
->msg_callback
;
659 s
->msg_callback_arg
= ctx
->msg_callback_arg
;
660 s
->verify_mode
= ctx
->verify_mode
;
661 s
->not_resumable_session_cb
= ctx
->not_resumable_session_cb
;
662 s
->sid_ctx_length
= ctx
->sid_ctx_length
;
663 OPENSSL_assert(s
->sid_ctx_length
<= sizeof s
->sid_ctx
);
664 memcpy(&s
->sid_ctx
, &ctx
->sid_ctx
, sizeof(s
->sid_ctx
));
665 s
->verify_callback
= ctx
->default_verify_callback
;
666 s
->generate_session_id
= ctx
->generate_session_id
;
668 s
->param
= X509_VERIFY_PARAM_new();
669 if (s
->param
== NULL
)
671 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
672 s
->quiet_shutdown
= ctx
->quiet_shutdown
;
673 s
->max_send_fragment
= ctx
->max_send_fragment
;
674 s
->split_send_fragment
= ctx
->split_send_fragment
;
675 s
->max_pipelines
= ctx
->max_pipelines
;
676 if (s
->max_pipelines
> 1)
677 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
678 if (ctx
->default_read_buf_len
> 0)
679 SSL_set_default_read_buffer_len(s
, ctx
->default_read_buf_len
);
683 s
->tlsext_debug_cb
= 0;
684 s
->tlsext_debug_arg
= NULL
;
685 s
->tlsext_ticket_expected
= 0;
686 s
->tlsext_status_type
= -1;
687 s
->tlsext_status_expected
= 0;
688 s
->tlsext_ocsp_ids
= NULL
;
689 s
->tlsext_ocsp_exts
= NULL
;
690 s
->tlsext_ocsp_resp
= NULL
;
691 s
->tlsext_ocsp_resplen
= -1;
693 s
->initial_ctx
= ctx
;
694 # ifndef OPENSSL_NO_EC
695 if (ctx
->tlsext_ecpointformatlist
) {
696 s
->tlsext_ecpointformatlist
=
697 OPENSSL_memdup(ctx
->tlsext_ecpointformatlist
,
698 ctx
->tlsext_ecpointformatlist_length
);
699 if (!s
->tlsext_ecpointformatlist
)
701 s
->tlsext_ecpointformatlist_length
=
702 ctx
->tlsext_ecpointformatlist_length
;
704 if (ctx
->tlsext_ellipticcurvelist
) {
705 s
->tlsext_ellipticcurvelist
=
706 OPENSSL_memdup(ctx
->tlsext_ellipticcurvelist
,
707 ctx
->tlsext_ellipticcurvelist_length
);
708 if (!s
->tlsext_ellipticcurvelist
)
710 s
->tlsext_ellipticcurvelist_length
=
711 ctx
->tlsext_ellipticcurvelist_length
;
714 # ifndef OPENSSL_NO_NEXTPROTONEG
715 s
->next_proto_negotiated
= NULL
;
718 if (s
->ctx
->alpn_client_proto_list
) {
719 s
->alpn_client_proto_list
=
720 OPENSSL_malloc(s
->ctx
->alpn_client_proto_list_len
);
721 if (s
->alpn_client_proto_list
== NULL
)
723 memcpy(s
->alpn_client_proto_list
, s
->ctx
->alpn_client_proto_list
,
724 s
->ctx
->alpn_client_proto_list_len
);
725 s
->alpn_client_proto_list_len
= s
->ctx
->alpn_client_proto_list_len
;
728 s
->verified_chain
= NULL
;
729 s
->verify_result
= X509_V_OK
;
731 s
->default_passwd_callback
= ctx
->default_passwd_callback
;
732 s
->default_passwd_callback_userdata
= ctx
->default_passwd_callback_userdata
;
734 s
->method
= ctx
->method
;
736 if (!s
->method
->ssl_new(s
))
739 s
->server
= (ctx
->method
->ssl_accept
== ssl_undefined_function
) ? 0 : 1;
744 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
746 #ifndef OPENSSL_NO_PSK
747 s
->psk_client_callback
= ctx
->psk_client_callback
;
748 s
->psk_server_callback
= ctx
->psk_server_callback
;
753 #ifndef OPENSSL_NO_CT
754 if (!SSL_set_ct_validation_callback(s
, ctx
->ct_validation_callback
,
755 ctx
->ct_validation_callback_arg
))
762 SSLerr(SSL_F_SSL_NEW
, ERR_R_MALLOC_FAILURE
);
766 void SSL_up_ref(SSL
*s
)
769 CRYPTO_atomic_add(&s
->references
, 1, &i
, s
->lock
);
772 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
, const unsigned char *sid_ctx
,
773 unsigned int sid_ctx_len
)
775 if (sid_ctx_len
> sizeof ctx
->sid_ctx
) {
776 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,
777 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
780 ctx
->sid_ctx_length
= sid_ctx_len
;
781 memcpy(ctx
->sid_ctx
, sid_ctx
, sid_ctx_len
);
786 int SSL_set_session_id_context(SSL
*ssl
, const unsigned char *sid_ctx
,
787 unsigned int sid_ctx_len
)
789 if (sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
) {
790 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,
791 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
794 ssl
->sid_ctx_length
= sid_ctx_len
;
795 memcpy(ssl
->sid_ctx
, sid_ctx
, sid_ctx_len
);
800 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
802 CRYPTO_THREAD_write_lock(ctx
->lock
);
803 ctx
->generate_session_id
= cb
;
804 CRYPTO_THREAD_unlock(ctx
->lock
);
808 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
810 CRYPTO_THREAD_write_lock(ssl
->lock
);
811 ssl
->generate_session_id
= cb
;
812 CRYPTO_THREAD_unlock(ssl
->lock
);
816 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
820 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
821 * we can "construct" a session to give us the desired check - ie. to
822 * find if there's a session in the hash table that would conflict with
823 * any new session built out of this id/id_len and the ssl_version in use
828 if (id_len
> sizeof r
.session_id
)
831 r
.ssl_version
= ssl
->version
;
832 r
.session_id_length
= id_len
;
833 memcpy(r
.session_id
, id
, id_len
);
835 CRYPTO_THREAD_read_lock(ssl
->ctx
->lock
);
836 p
= lh_SSL_SESSION_retrieve(ssl
->ctx
->sessions
, &r
);
837 CRYPTO_THREAD_unlock(ssl
->ctx
->lock
);
841 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
843 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
846 int SSL_set_purpose(SSL
*s
, int purpose
)
848 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
851 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
853 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
856 int SSL_set_trust(SSL
*s
, int trust
)
858 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
861 int SSL_set1_host(SSL
*s
, const char *hostname
)
863 return X509_VERIFY_PARAM_set1_host(s
->param
, hostname
, 0);
866 int SSL_add1_host(SSL
*s
, const char *hostname
)
868 return X509_VERIFY_PARAM_add1_host(s
->param
, hostname
, 0);
871 void SSL_set_hostflags(SSL
*s
, unsigned int flags
)
873 X509_VERIFY_PARAM_set_hostflags(s
->param
, flags
);
876 const char *SSL_get0_peername(SSL
*s
)
878 return X509_VERIFY_PARAM_get0_peername(s
->param
);
881 int SSL_CTX_dane_enable(SSL_CTX
*ctx
)
883 return dane_ctx_enable(&ctx
->dane
);
886 int SSL_dane_enable(SSL
*s
, const char *basedomain
)
888 struct dane_st
*dane
= &s
->dane
;
890 if (s
->ctx
->dane
.mdmax
== 0) {
891 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_CONTEXT_NOT_DANE_ENABLED
);
894 if (dane
->trecs
!= NULL
) {
895 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_DANE_ALREADY_ENABLED
);
900 * Default SNI name. This rejects empty names, while set1_host below
901 * accepts them and disables host name checks. To avoid side-effects with
902 * invalid input, set the SNI name first.
904 if (s
->tlsext_hostname
== NULL
) {
905 if (!SSL_set_tlsext_host_name(s
, basedomain
)) {
906 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
911 /* Primary RFC6125 reference identifier */
912 if (!X509_VERIFY_PARAM_set1_host(s
->param
, basedomain
, 0)) {
913 SSLerr(SSL_F_SSL_DANE_ENABLE
, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN
);
919 dane
->dctx
= &s
->ctx
->dane
;
920 dane
->trecs
= sk_danetls_record_new_null();
922 if (dane
->trecs
== NULL
) {
923 SSLerr(SSL_F_SSL_DANE_ENABLE
, ERR_R_MALLOC_FAILURE
);
929 int SSL_get0_dane_authority(SSL
*s
, X509
**mcert
, EVP_PKEY
**mspki
)
931 struct dane_st
*dane
= &s
->dane
;
933 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
937 *mcert
= dane
->mcert
;
939 *mspki
= (dane
->mcert
== NULL
) ? dane
->mtlsa
->spki
: NULL
;
944 int SSL_get0_dane_tlsa(SSL
*s
, uint8_t *usage
, uint8_t *selector
,
945 uint8_t *mtype
, unsigned const char **data
, size_t *dlen
)
947 struct dane_st
*dane
= &s
->dane
;
949 if (!DANETLS_ENABLED(dane
) || s
->verify_result
!= X509_V_OK
)
953 *usage
= dane
->mtlsa
->usage
;
955 *selector
= dane
->mtlsa
->selector
;
957 *mtype
= dane
->mtlsa
->mtype
;
959 *data
= dane
->mtlsa
->data
;
961 *dlen
= dane
->mtlsa
->dlen
;
966 struct dane_st
*SSL_get0_dane(SSL
*s
)
971 int SSL_dane_tlsa_add(SSL
*s
, uint8_t usage
, uint8_t selector
,
972 uint8_t mtype
, unsigned char *data
, size_t dlen
)
974 return dane_tlsa_add(&s
->dane
, usage
, selector
, mtype
, data
, dlen
);
977 int SSL_CTX_dane_mtype_set(SSL_CTX
*ctx
, const EVP_MD
*md
, uint8_t mtype
, uint8_t ord
)
979 return dane_mtype_set(&ctx
->dane
, md
, mtype
, ord
);
982 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
984 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
987 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
989 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
992 X509_VERIFY_PARAM
*SSL_CTX_get0_param(SSL_CTX
*ctx
)
997 X509_VERIFY_PARAM
*SSL_get0_param(SSL
*ssl
)
1002 void SSL_certs_clear(SSL
*s
)
1004 ssl_cert_clear_certs(s
->cert
);
1007 void SSL_free(SSL
*s
)
1014 CRYPTO_atomic_add(&s
->references
, -1, &i
, s
->lock
);
1015 REF_PRINT_COUNT("SSL", s
);
1018 REF_ASSERT_ISNT(i
< 0);
1020 X509_VERIFY_PARAM_free(s
->param
);
1021 dane_final(&s
->dane
);
1022 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
1024 if (s
->bbio
!= NULL
) {
1025 /* If the buffering BIO is in place, pop it off */
1026 if (s
->bbio
== s
->wbio
) {
1027 s
->wbio
= BIO_pop(s
->wbio
);
1032 BIO_free_all(s
->rbio
);
1033 if (s
->wbio
!= s
->rbio
)
1034 BIO_free_all(s
->wbio
);
1036 BUF_MEM_free(s
->init_buf
);
1038 /* add extra stuff */
1039 sk_SSL_CIPHER_free(s
->cipher_list
);
1040 sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
1042 /* Make the next call work :-) */
1043 if (s
->session
!= NULL
) {
1044 ssl_clear_bad_session(s
);
1045 SSL_SESSION_free(s
->session
);
1050 ssl_cert_free(s
->cert
);
1051 /* Free up if allocated */
1053 OPENSSL_free(s
->tlsext_hostname
);
1054 SSL_CTX_free(s
->initial_ctx
);
1055 #ifndef OPENSSL_NO_EC
1056 OPENSSL_free(s
->tlsext_ecpointformatlist
);
1057 OPENSSL_free(s
->tlsext_ellipticcurvelist
);
1058 #endif /* OPENSSL_NO_EC */
1059 sk_X509_EXTENSION_pop_free(s
->tlsext_ocsp_exts
, X509_EXTENSION_free
);
1060 sk_OCSP_RESPID_pop_free(s
->tlsext_ocsp_ids
, OCSP_RESPID_free
);
1061 #ifndef OPENSSL_NO_CT
1062 SCT_LIST_free(s
->scts
);
1063 OPENSSL_free(s
->tlsext_scts
);
1065 OPENSSL_free(s
->tlsext_ocsp_resp
);
1066 OPENSSL_free(s
->alpn_client_proto_list
);
1068 sk_X509_NAME_pop_free(s
->client_CA
, X509_NAME_free
);
1070 sk_X509_pop_free(s
->verified_chain
, X509_free
);
1072 if (s
->method
!= NULL
)
1073 s
->method
->ssl_free(s
);
1075 RECORD_LAYER_release(&s
->rlayer
);
1077 SSL_CTX_free(s
->ctx
);
1079 ASYNC_WAIT_CTX_free(s
->waitctx
);
1081 #if !defined(OPENSSL_NO_NEXTPROTONEG)
1082 OPENSSL_free(s
->next_proto_negotiated
);
1085 #ifndef OPENSSL_NO_SRTP
1086 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
1089 CRYPTO_THREAD_lock_free(s
->lock
);
1094 void SSL_set_rbio(SSL
*s
, BIO
*rbio
)
1096 if (s
->rbio
!= rbio
)
1097 BIO_free_all(s
->rbio
);
1101 void SSL_set_wbio(SSL
*s
, BIO
*wbio
)
1104 * If the output buffering BIO is still in place, remove it
1106 if (s
->bbio
!= NULL
) {
1107 if (s
->wbio
== s
->bbio
) {
1108 s
->wbio
= BIO_next(s
->wbio
);
1109 BIO_set_next(s
->bbio
, NULL
);
1112 if (s
->wbio
!= wbio
&& s
->rbio
!= s
->wbio
)
1113 BIO_free_all(s
->wbio
);
1117 void SSL_set_bio(SSL
*s
, BIO
*rbio
, BIO
*wbio
)
1119 SSL_set_wbio(s
, wbio
);
1120 SSL_set_rbio(s
, rbio
);
1123 BIO
*SSL_get_rbio(const SSL
*s
)
1128 BIO
*SSL_get_wbio(const SSL
*s
)
1133 int SSL_get_fd(const SSL
*s
)
1135 return (SSL_get_rfd(s
));
1138 int SSL_get_rfd(const SSL
*s
)
1143 b
= SSL_get_rbio(s
);
1144 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1146 BIO_get_fd(r
, &ret
);
1150 int SSL_get_wfd(const SSL
*s
)
1155 b
= SSL_get_wbio(s
);
1156 r
= BIO_find_type(b
, BIO_TYPE_DESCRIPTOR
);
1158 BIO_get_fd(r
, &ret
);
1162 #ifndef OPENSSL_NO_SOCK
1163 int SSL_set_fd(SSL
*s
, int fd
)
1168 bio
= BIO_new(BIO_s_socket());
1171 SSLerr(SSL_F_SSL_SET_FD
, ERR_R_BUF_LIB
);
1174 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1175 SSL_set_bio(s
, bio
, bio
);
1181 int SSL_set_wfd(SSL
*s
, int fd
)
1186 if ((s
->rbio
== NULL
) || (BIO_method_type(s
->rbio
) != BIO_TYPE_SOCKET
)
1187 || ((int)BIO_get_fd(s
->rbio
, NULL
) != fd
)) {
1188 bio
= BIO_new(BIO_s_socket());
1191 SSLerr(SSL_F_SSL_SET_WFD
, ERR_R_BUF_LIB
);
1194 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1195 SSL_set_bio(s
, SSL_get_rbio(s
), bio
);
1197 SSL_set_bio(s
, SSL_get_rbio(s
), SSL_get_rbio(s
));
1203 int SSL_set_rfd(SSL
*s
, int fd
)
1208 if ((s
->wbio
== NULL
) || (BIO_method_type(s
->wbio
) != BIO_TYPE_SOCKET
)
1209 || ((int)BIO_get_fd(s
->wbio
, NULL
) != fd
)) {
1210 bio
= BIO_new(BIO_s_socket());
1213 SSLerr(SSL_F_SSL_SET_RFD
, ERR_R_BUF_LIB
);
1216 BIO_set_fd(bio
, fd
, BIO_NOCLOSE
);
1217 SSL_set_bio(s
, bio
, SSL_get_wbio(s
));
1219 SSL_set_bio(s
, SSL_get_wbio(s
), SSL_get_wbio(s
));
1226 /* return length of latest Finished message we sent, copy to 'buf' */
1227 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
1231 if (s
->s3
!= NULL
) {
1232 ret
= s
->s3
->tmp
.finish_md_len
;
1235 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
1240 /* return length of latest Finished message we expected, copy to 'buf' */
1241 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
1245 if (s
->s3
!= NULL
) {
1246 ret
= s
->s3
->tmp
.peer_finish_md_len
;
1249 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
1254 int SSL_get_verify_mode(const SSL
*s
)
1256 return (s
->verify_mode
);
1259 int SSL_get_verify_depth(const SSL
*s
)
1261 return X509_VERIFY_PARAM_get_depth(s
->param
);
1264 int (*SSL_get_verify_callback(const SSL
*s
)) (int, X509_STORE_CTX
*) {
1265 return (s
->verify_callback
);
1268 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
1270 return (ctx
->verify_mode
);
1273 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
1275 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
1278 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
)) (int, X509_STORE_CTX
*) {
1279 return (ctx
->default_verify_callback
);
1282 void SSL_set_verify(SSL
*s
, int mode
,
1283 int (*callback
) (int ok
, X509_STORE_CTX
*ctx
))
1285 s
->verify_mode
= mode
;
1286 if (callback
!= NULL
)
1287 s
->verify_callback
= callback
;
1290 void SSL_set_verify_depth(SSL
*s
, int depth
)
1292 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
1295 void SSL_set_read_ahead(SSL
*s
, int yes
)
1297 RECORD_LAYER_set_read_ahead(&s
->rlayer
, yes
);
1300 int SSL_get_read_ahead(const SSL
*s
)
1302 return RECORD_LAYER_get_read_ahead(&s
->rlayer
);
1305 int SSL_pending(const SSL
*s
)
1308 * SSL_pending cannot work properly if read-ahead is enabled
1309 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
1310 * impossible to fix since SSL_pending cannot report errors that may be
1311 * observed while scanning the new data. (Note that SSL_pending() is
1312 * often used as a boolean value, so we'd better not return -1.)
1314 return (s
->method
->ssl_pending(s
));
1317 int SSL_has_pending(const SSL
*s
)
1320 * Similar to SSL_pending() but returns a 1 to indicate that we have
1321 * unprocessed data available or 0 otherwise (as opposed to the number of
1322 * bytes available). Unlike SSL_pending() this will take into account
1323 * read_ahead data. A 1 return simply indicates that we have unprocessed
1324 * data. That data may not result in any application data, or we may fail
1325 * to parse the records for some reason.
1330 return RECORD_LAYER_read_pending(&s
->rlayer
);
1333 X509
*SSL_get_peer_certificate(const SSL
*s
)
1337 if ((s
== NULL
) || (s
->session
== NULL
))
1340 r
= s
->session
->peer
;
1350 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
1354 if ((s
== NULL
) || (s
->session
== NULL
))
1357 r
= s
->session
->peer_chain
;
1360 * If we are a client, cert_chain includes the peer's own certificate; if
1361 * we are a server, it does not.
1368 * Now in theory, since the calling process own 't' it should be safe to
1369 * modify. We need to be able to read f without being hassled
1371 int SSL_copy_session_id(SSL
*t
, const SSL
*f
)
1374 /* Do we need to to SSL locking? */
1375 if (!SSL_set_session(t
, SSL_get_session(f
))) {
1380 * what if we are setup for one protocol version but want to talk another
1382 if (t
->method
!= f
->method
) {
1383 t
->method
->ssl_free(t
);
1384 t
->method
= f
->method
;
1385 if (t
->method
->ssl_new(t
) == 0)
1389 CRYPTO_atomic_add(&f
->cert
->references
, 1, &i
, f
->cert
->lock
);
1390 ssl_cert_free(t
->cert
);
1392 if (!SSL_set_session_id_context(t
, f
->sid_ctx
, f
->sid_ctx_length
)) {
1399 /* Fix this so it checks all the valid key/cert options */
1400 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
1402 if ((ctx
== NULL
) ||
1403 (ctx
->cert
->key
->x509
== NULL
)) {
1404 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,
1405 SSL_R_NO_CERTIFICATE_ASSIGNED
);
1408 if (ctx
->cert
->key
->privatekey
== NULL
) {
1409 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,
1410 SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1413 return (X509_check_private_key
1414 (ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
));
1417 /* Fix this function so that it takes an optional type parameter */
1418 int SSL_check_private_key(const SSL
*ssl
)
1421 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, ERR_R_PASSED_NULL_PARAMETER
);
1424 if (ssl
->cert
->key
->x509
== NULL
) {
1425 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
1428 if (ssl
->cert
->key
->privatekey
== NULL
) {
1429 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
, SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
1432 return (X509_check_private_key(ssl
->cert
->key
->x509
,
1433 ssl
->cert
->key
->privatekey
));
1436 int SSL_waiting_for_async(SSL
*s
)
1444 int SSL_get_all_async_fds(SSL
*s
, OSSL_ASYNC_FD
*fds
, size_t *numfds
)
1446 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1450 return ASYNC_WAIT_CTX_get_all_fds(ctx
, fds
, numfds
);
1453 int SSL_get_changed_async_fds(SSL
*s
, OSSL_ASYNC_FD
*addfd
, size_t *numaddfds
,
1454 OSSL_ASYNC_FD
*delfd
, size_t *numdelfds
)
1456 ASYNC_WAIT_CTX
*ctx
= s
->waitctx
;
1460 return ASYNC_WAIT_CTX_get_changed_fds(ctx
, addfd
, numaddfds
, delfd
,
1464 int SSL_accept(SSL
*s
)
1466 if (s
->handshake_func
== NULL
) {
1467 /* Not properly initialized yet */
1468 SSL_set_accept_state(s
);
1471 return SSL_do_handshake(s
);
1474 int SSL_connect(SSL
*s
)
1476 if (s
->handshake_func
== NULL
) {
1477 /* Not properly initialized yet */
1478 SSL_set_connect_state(s
);
1481 return SSL_do_handshake(s
);
1484 long SSL_get_default_timeout(const SSL
*s
)
1486 return (s
->method
->get_timeout());
1489 static int ssl_start_async_job(SSL
*s
, struct ssl_async_args
*args
,
1490 int (*func
)(void *)) {
1492 if (s
->waitctx
== NULL
) {
1493 s
->waitctx
= ASYNC_WAIT_CTX_new();
1494 if (s
->waitctx
== NULL
)
1497 switch(ASYNC_start_job(&s
->job
, s
->waitctx
, &ret
, func
, args
,
1498 sizeof(struct ssl_async_args
))) {
1500 s
->rwstate
= SSL_NOTHING
;
1501 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, SSL_R_FAILED_TO_INIT_ASYNC
);
1504 s
->rwstate
= SSL_ASYNC_PAUSED
;
1510 s
->rwstate
= SSL_NOTHING
;
1511 SSLerr(SSL_F_SSL_START_ASYNC_JOB
, ERR_R_INTERNAL_ERROR
);
1512 /* Shouldn't happen */
1517 static int ssl_io_intern(void *vargs
)
1519 struct ssl_async_args
*args
;
1524 args
= (struct ssl_async_args
*)vargs
;
1528 switch (args
->type
) {
1530 return args
->f
.func_read(s
, buf
, num
);
1532 return args
->f
.func_write(s
, buf
, num
);
1534 return args
->f
.func_other(s
);
1539 int SSL_read(SSL
*s
, void *buf
, int num
)
1541 if (s
->handshake_func
== NULL
) {
1542 SSLerr(SSL_F_SSL_READ
, SSL_R_UNINITIALIZED
);
1546 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1547 s
->rwstate
= SSL_NOTHING
;
1551 if((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1552 struct ssl_async_args args
;
1557 args
.type
= READFUNC
;
1558 args
.f
.func_read
= s
->method
->ssl_read
;
1560 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
1562 return s
->method
->ssl_read(s
, buf
, num
);
1566 int SSL_peek(SSL
*s
, void *buf
, int num
)
1568 if (s
->handshake_func
== NULL
) {
1569 SSLerr(SSL_F_SSL_PEEK
, SSL_R_UNINITIALIZED
);
1573 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) {
1576 if((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1577 struct ssl_async_args args
;
1582 args
.type
= READFUNC
;
1583 args
.f
.func_read
= s
->method
->ssl_peek
;
1585 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
1587 return s
->method
->ssl_peek(s
, buf
, num
);
1591 int SSL_write(SSL
*s
, const void *buf
, int num
)
1593 if (s
->handshake_func
== NULL
) {
1594 SSLerr(SSL_F_SSL_WRITE
, SSL_R_UNINITIALIZED
);
1598 if (s
->shutdown
& SSL_SENT_SHUTDOWN
) {
1599 s
->rwstate
= SSL_NOTHING
;
1600 SSLerr(SSL_F_SSL_WRITE
, SSL_R_PROTOCOL_IS_SHUTDOWN
);
1604 if((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1605 struct ssl_async_args args
;
1608 args
.buf
= (void *)buf
;
1610 args
.type
= WRITEFUNC
;
1611 args
.f
.func_write
= s
->method
->ssl_write
;
1613 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
1615 return s
->method
->ssl_write(s
, buf
, num
);
1619 int SSL_shutdown(SSL
*s
)
1622 * Note that this function behaves differently from what one might
1623 * expect. Return values are 0 for no success (yet), 1 for success; but
1624 * calling it once is usually not enough, even if blocking I/O is used
1625 * (see ssl3_shutdown).
1628 if (s
->handshake_func
== NULL
) {
1629 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
1633 if (!SSL_in_init(s
)) {
1634 if((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
1635 struct ssl_async_args args
;
1638 args
.type
= OTHERFUNC
;
1639 args
.f
.func_other
= s
->method
->ssl_shutdown
;
1641 return ssl_start_async_job(s
, &args
, ssl_io_intern
);
1643 return s
->method
->ssl_shutdown(s
);
1646 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_SHUTDOWN_WHILE_IN_INIT
);
1651 int SSL_renegotiate(SSL
*s
)
1653 if (s
->renegotiate
== 0)
1658 return (s
->method
->ssl_renegotiate(s
));
1661 int SSL_renegotiate_abbreviated(SSL
*s
)
1663 if (s
->renegotiate
== 0)
1668 return (s
->method
->ssl_renegotiate(s
));
1671 int SSL_renegotiate_pending(SSL
*s
)
1674 * becomes true when negotiation is requested; false again once a
1675 * handshake has finished
1677 return (s
->renegotiate
!= 0);
1680 long SSL_ctrl(SSL
*s
, int cmd
, long larg
, void *parg
)
1685 case SSL_CTRL_GET_READ_AHEAD
:
1686 return (RECORD_LAYER_get_read_ahead(&s
->rlayer
));
1687 case SSL_CTRL_SET_READ_AHEAD
:
1688 l
= RECORD_LAYER_get_read_ahead(&s
->rlayer
);
1689 RECORD_LAYER_set_read_ahead(&s
->rlayer
, larg
);
1692 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1693 s
->msg_callback_arg
= parg
;
1697 return (s
->mode
|= larg
);
1698 case SSL_CTRL_CLEAR_MODE
:
1699 return (s
->mode
&= ~larg
);
1700 case SSL_CTRL_GET_MAX_CERT_LIST
:
1701 return (s
->max_cert_list
);
1702 case SSL_CTRL_SET_MAX_CERT_LIST
:
1703 l
= s
->max_cert_list
;
1704 s
->max_cert_list
= larg
;
1706 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
1707 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
1709 s
->max_send_fragment
= larg
;
1710 if (s
->max_send_fragment
< s
->split_send_fragment
)
1711 s
->split_send_fragment
= s
->max_send_fragment
;
1713 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
1714 if ((unsigned int)larg
> s
->max_send_fragment
|| larg
== 0)
1716 s
->split_send_fragment
= larg
;
1718 case SSL_CTRL_SET_MAX_PIPELINES
:
1719 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
1721 s
->max_pipelines
= larg
;
1723 RECORD_LAYER_set_read_ahead(&s
->rlayer
, 1);
1725 case SSL_CTRL_GET_RI_SUPPORT
:
1727 return s
->s3
->send_connection_binding
;
1730 case SSL_CTRL_CERT_FLAGS
:
1731 return (s
->cert
->cert_flags
|= larg
);
1732 case SSL_CTRL_CLEAR_CERT_FLAGS
:
1733 return (s
->cert
->cert_flags
&= ~larg
);
1735 case SSL_CTRL_GET_RAW_CIPHERLIST
:
1737 if (s
->s3
->tmp
.ciphers_raw
== NULL
)
1739 *(unsigned char **)parg
= s
->s3
->tmp
.ciphers_raw
;
1740 return (int)s
->s3
->tmp
.ciphers_rawlen
;
1742 return TLS_CIPHER_LEN
;
1744 case SSL_CTRL_GET_EXTMS_SUPPORT
:
1745 if (!s
->session
|| SSL_in_init(s
) || ossl_statem_get_in_handshake(s
))
1747 if (s
->session
->flags
& SSL_SESS_FLAG_EXTMS
)
1751 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
1752 return ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
1753 &s
->min_proto_version
);
1754 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
1755 return ssl_set_version_bound(s
->ctx
->method
->version
, (int)larg
,
1756 &s
->max_proto_version
);
1758 return (s
->method
->ssl_ctrl(s
, cmd
, larg
, parg
));
1762 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
) (void))
1765 case SSL_CTRL_SET_MSG_CALLBACK
:
1766 s
->msg_callback
= (void (*)
1767 (int write_p
, int version
, int content_type
,
1768 const void *buf
, size_t len
, SSL
*ssl
,
1773 return (s
->method
->ssl_callback_ctrl(s
, cmd
, fp
));
1777 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
1779 return ctx
->sessions
;
1782 long SSL_CTX_ctrl(SSL_CTX
*ctx
, int cmd
, long larg
, void *parg
)
1785 /* For some cases with ctx == NULL perform syntax checks */
1788 #ifndef OPENSSL_NO_EC
1789 case SSL_CTRL_SET_CURVES_LIST
:
1790 return tls1_set_curves_list(NULL
, NULL
, parg
);
1792 case SSL_CTRL_SET_SIGALGS_LIST
:
1793 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST
:
1794 return tls1_set_sigalgs_list(NULL
, parg
, 0);
1801 case SSL_CTRL_GET_READ_AHEAD
:
1802 return (ctx
->read_ahead
);
1803 case SSL_CTRL_SET_READ_AHEAD
:
1804 l
= ctx
->read_ahead
;
1805 ctx
->read_ahead
= larg
;
1808 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1809 ctx
->msg_callback_arg
= parg
;
1812 case SSL_CTRL_GET_MAX_CERT_LIST
:
1813 return (ctx
->max_cert_list
);
1814 case SSL_CTRL_SET_MAX_CERT_LIST
:
1815 l
= ctx
->max_cert_list
;
1816 ctx
->max_cert_list
= larg
;
1819 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
1820 l
= ctx
->session_cache_size
;
1821 ctx
->session_cache_size
= larg
;
1823 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
1824 return (ctx
->session_cache_size
);
1825 case SSL_CTRL_SET_SESS_CACHE_MODE
:
1826 l
= ctx
->session_cache_mode
;
1827 ctx
->session_cache_mode
= larg
;
1829 case SSL_CTRL_GET_SESS_CACHE_MODE
:
1830 return (ctx
->session_cache_mode
);
1832 case SSL_CTRL_SESS_NUMBER
:
1833 return (lh_SSL_SESSION_num_items(ctx
->sessions
));
1834 case SSL_CTRL_SESS_CONNECT
:
1835 return (ctx
->stats
.sess_connect
);
1836 case SSL_CTRL_SESS_CONNECT_GOOD
:
1837 return (ctx
->stats
.sess_connect_good
);
1838 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
1839 return (ctx
->stats
.sess_connect_renegotiate
);
1840 case SSL_CTRL_SESS_ACCEPT
:
1841 return (ctx
->stats
.sess_accept
);
1842 case SSL_CTRL_SESS_ACCEPT_GOOD
:
1843 return (ctx
->stats
.sess_accept_good
);
1844 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
1845 return (ctx
->stats
.sess_accept_renegotiate
);
1846 case SSL_CTRL_SESS_HIT
:
1847 return (ctx
->stats
.sess_hit
);
1848 case SSL_CTRL_SESS_CB_HIT
:
1849 return (ctx
->stats
.sess_cb_hit
);
1850 case SSL_CTRL_SESS_MISSES
:
1851 return (ctx
->stats
.sess_miss
);
1852 case SSL_CTRL_SESS_TIMEOUTS
:
1853 return (ctx
->stats
.sess_timeout
);
1854 case SSL_CTRL_SESS_CACHE_FULL
:
1855 return (ctx
->stats
.sess_cache_full
);
1857 return (ctx
->mode
|= larg
);
1858 case SSL_CTRL_CLEAR_MODE
:
1859 return (ctx
->mode
&= ~larg
);
1860 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
1861 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
1863 ctx
->max_send_fragment
= larg
;
1864 if (ctx
->max_send_fragment
< ctx
->split_send_fragment
)
1865 ctx
->split_send_fragment
= ctx
->split_send_fragment
;
1867 case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT
:
1868 if ((unsigned int)larg
> ctx
->max_send_fragment
|| larg
== 0)
1870 ctx
->split_send_fragment
= larg
;
1872 case SSL_CTRL_SET_MAX_PIPELINES
:
1873 if (larg
< 1 || larg
> SSL_MAX_PIPELINES
)
1875 ctx
->max_pipelines
= larg
;
1877 case SSL_CTRL_CERT_FLAGS
:
1878 return (ctx
->cert
->cert_flags
|= larg
);
1879 case SSL_CTRL_CLEAR_CERT_FLAGS
:
1880 return (ctx
->cert
->cert_flags
&= ~larg
);
1881 case SSL_CTRL_SET_MIN_PROTO_VERSION
:
1882 return ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
1883 &ctx
->min_proto_version
);
1884 case SSL_CTRL_SET_MAX_PROTO_VERSION
:
1885 return ssl_set_version_bound(ctx
->method
->version
, (int)larg
,
1886 &ctx
->max_proto_version
);
1888 return (ctx
->method
->ssl_ctx_ctrl(ctx
, cmd
, larg
, parg
));
1892 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
) (void))
1895 case SSL_CTRL_SET_MSG_CALLBACK
:
1896 ctx
->msg_callback
= (void (*)
1897 (int write_p
, int version
, int content_type
,
1898 const void *buf
, size_t len
, SSL
*ssl
,
1903 return (ctx
->method
->ssl_ctx_callback_ctrl(ctx
, cmd
, fp
));
1907 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
1916 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
*const *ap
,
1917 const SSL_CIPHER
*const *bp
)
1919 if ((*ap
)->id
> (*bp
)->id
)
1921 if ((*ap
)->id
< (*bp
)->id
)
1926 /** return a STACK of the ciphers available for the SSL and in order of
1928 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
1931 if (s
->cipher_list
!= NULL
) {
1932 return (s
->cipher_list
);
1933 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list
!= NULL
)) {
1934 return (s
->ctx
->cipher_list
);
1940 STACK_OF(SSL_CIPHER
) *SSL_get_client_ciphers(const SSL
*s
)
1942 if ((s
== NULL
) || (s
->session
== NULL
) || !s
->server
)
1944 return s
->session
->ciphers
;
1947 STACK_OF(SSL_CIPHER
) *SSL_get1_supported_ciphers(SSL
*s
)
1949 STACK_OF(SSL_CIPHER
) *sk
= NULL
, *ciphers
;
1951 ciphers
= SSL_get_ciphers(s
);
1954 ssl_set_client_disabled(s
);
1955 for (i
= 0; i
< sk_SSL_CIPHER_num(ciphers
); i
++) {
1956 const SSL_CIPHER
*c
= sk_SSL_CIPHER_value(ciphers
, i
);
1957 if (!ssl_cipher_disabled(s
, c
, SSL_SECOP_CIPHER_SUPPORTED
)) {
1959 sk
= sk_SSL_CIPHER_new_null();
1962 if (!sk_SSL_CIPHER_push(sk
, c
)) {
1963 sk_SSL_CIPHER_free(sk
);
1971 /** return a STACK of the ciphers available for the SSL and in order of
1973 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
1976 if (s
->cipher_list_by_id
!= NULL
) {
1977 return (s
->cipher_list_by_id
);
1978 } else if ((s
->ctx
!= NULL
) && (s
->ctx
->cipher_list_by_id
!= NULL
)) {
1979 return (s
->ctx
->cipher_list_by_id
);
1985 /** The old interface to get the same thing as SSL_get_ciphers() */
1986 const char *SSL_get_cipher_list(const SSL
*s
, int n
)
1988 const SSL_CIPHER
*c
;
1989 STACK_OF(SSL_CIPHER
) *sk
;
1993 sk
= SSL_get_ciphers(s
);
1994 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
1996 c
= sk_SSL_CIPHER_value(sk
, n
);
2002 /** specify the ciphers to be used by default by the SSL_CTX */
2003 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
2005 STACK_OF(SSL_CIPHER
) *sk
;
2007 sk
= ssl_create_cipher_list(ctx
->method
, &ctx
->cipher_list
,
2008 &ctx
->cipher_list_by_id
, str
, ctx
->cert
);
2010 * ssl_create_cipher_list may return an empty stack if it was unable to
2011 * find a cipher matching the given rule string (for example if the rule
2012 * string specifies a cipher which has been disabled). This is not an
2013 * error as far as ssl_create_cipher_list is concerned, and hence
2014 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
2018 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2019 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2025 /** specify the ciphers to be used by the SSL */
2026 int SSL_set_cipher_list(SSL
*s
, const char *str
)
2028 STACK_OF(SSL_CIPHER
) *sk
;
2030 sk
= ssl_create_cipher_list(s
->ctx
->method
, &s
->cipher_list
,
2031 &s
->cipher_list_by_id
, str
, s
->cert
);
2032 /* see comment in SSL_CTX_set_cipher_list */
2035 else if (sk_SSL_CIPHER_num(sk
) == 0) {
2036 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
2042 char *SSL_get_shared_ciphers(const SSL
*s
, char *buf
, int len
)
2045 STACK_OF(SSL_CIPHER
) *sk
;
2046 const SSL_CIPHER
*c
;
2049 if ((s
->session
== NULL
) || (s
->session
->ciphers
== NULL
) || (len
< 2))
2053 sk
= s
->session
->ciphers
;
2055 if (sk_SSL_CIPHER_num(sk
) == 0)
2058 for (i
= 0; i
< sk_SSL_CIPHER_num(sk
); i
++) {
2061 c
= sk_SSL_CIPHER_value(sk
, i
);
2062 n
= strlen(c
->name
);
2069 memcpy(p
, c
->name
, n
+ 1);
2078 /** return a servername extension value if provided in Client Hello, or NULL.
2079 * So far, only host_name types are defined (RFC 3546).
2082 const char *SSL_get_servername(const SSL
*s
, const int type
)
2084 if (type
!= TLSEXT_NAMETYPE_host_name
)
2087 return s
->session
&& !s
->tlsext_hostname
?
2088 s
->session
->tlsext_hostname
: s
->tlsext_hostname
;
2091 int SSL_get_servername_type(const SSL
*s
)
2094 && (!s
->tlsext_hostname
? s
->session
->
2095 tlsext_hostname
: s
->tlsext_hostname
))
2096 return TLSEXT_NAMETYPE_host_name
;
2101 * SSL_select_next_proto implements the standard protocol selection. It is
2102 * expected that this function is called from the callback set by
2103 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
2104 * vector of 8-bit, length prefixed byte strings. The length byte itself is
2105 * not included in the length. A byte string of length 0 is invalid. No byte
2106 * string may be truncated. The current, but experimental algorithm for
2107 * selecting the protocol is: 1) If the server doesn't support NPN then this
2108 * is indicated to the callback. In this case, the client application has to
2109 * abort the connection or have a default application level protocol. 2) If
2110 * the server supports NPN, but advertises an empty list then the client
2111 * selects the first protcol in its list, but indicates via the API that this
2112 * fallback case was enacted. 3) Otherwise, the client finds the first
2113 * protocol in the server's list that it supports and selects this protocol.
2114 * This is because it's assumed that the server has better information about
2115 * which protocol a client should use. 4) If the client doesn't support any
2116 * of the server's advertised protocols, then this is treated the same as
2117 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
2118 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
2120 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
,
2121 const unsigned char *server
,
2122 unsigned int server_len
,
2123 const unsigned char *client
,
2124 unsigned int client_len
)
2127 const unsigned char *result
;
2128 int status
= OPENSSL_NPN_UNSUPPORTED
;
2131 * For each protocol in server preference order, see if we support it.
2133 for (i
= 0; i
< server_len
;) {
2134 for (j
= 0; j
< client_len
;) {
2135 if (server
[i
] == client
[j
] &&
2136 memcmp(&server
[i
+ 1], &client
[j
+ 1], server
[i
]) == 0) {
2137 /* We found a match */
2138 result
= &server
[i
];
2139 status
= OPENSSL_NPN_NEGOTIATED
;
2149 /* There's no overlap between our protocols and the server's list. */
2151 status
= OPENSSL_NPN_NO_OVERLAP
;
2154 *out
= (unsigned char *)result
+ 1;
2155 *outlen
= result
[0];
2159 #ifndef OPENSSL_NO_NEXTPROTONEG
2161 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
2162 * client's requested protocol for this connection and returns 0. If the
2163 * client didn't request any protocol, then *data is set to NULL. Note that
2164 * the client can request any protocol it chooses. The value returned from
2165 * this function need not be a member of the list of supported protocols
2166 * provided by the callback.
2168 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
,
2171 *data
= s
->next_proto_negotiated
;
2175 *len
= s
->next_proto_negotiated_len
;
2180 * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when
2181 * a TLS server needs a list of supported protocols for Next Protocol
2182 * Negotiation. The returned list must be in wire format. The list is
2183 * returned by setting |out| to point to it and |outlen| to its length. This
2184 * memory will not be modified, but one should assume that the SSL* keeps a
2185 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
2186 * wishes to advertise. Otherwise, no such extension will be included in the
2189 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX
*ctx
,
2190 int (*cb
) (SSL
*ssl
,
2193 unsigned int *outlen
,
2194 void *arg
), void *arg
)
2196 ctx
->next_protos_advertised_cb
= cb
;
2197 ctx
->next_protos_advertised_cb_arg
= arg
;
2201 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
2202 * client needs to select a protocol from the server's provided list. |out|
2203 * must be set to point to the selected protocol (which may be within |in|).
2204 * The length of the protocol name must be written into |outlen|. The
2205 * server's advertised protocols are provided in |in| and |inlen|. The
2206 * callback can assume that |in| is syntactically valid. The client must
2207 * select a protocol. It is fatal to the connection if this callback returns
2208 * a value other than SSL_TLSEXT_ERR_OK.
2210 void SSL_CTX_set_next_proto_select_cb(SSL_CTX
*ctx
,
2211 int (*cb
) (SSL
*s
, unsigned char **out
,
2212 unsigned char *outlen
,
2213 const unsigned char *in
,
2215 void *arg
), void *arg
)
2217 ctx
->next_proto_select_cb
= cb
;
2218 ctx
->next_proto_select_cb_arg
= arg
;
2223 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
2224 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2225 * length-prefixed strings). Returns 0 on success.
2227 int SSL_CTX_set_alpn_protos(SSL_CTX
*ctx
, const unsigned char *protos
,
2228 unsigned int protos_len
)
2230 OPENSSL_free(ctx
->alpn_client_proto_list
);
2231 ctx
->alpn_client_proto_list
= OPENSSL_memdup(protos
, protos_len
);
2232 if (ctx
->alpn_client_proto_list
== NULL
) {
2233 SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2236 ctx
->alpn_client_proto_list_len
= protos_len
;
2242 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
2243 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
2244 * length-prefixed strings). Returns 0 on success.
2246 int SSL_set_alpn_protos(SSL
*ssl
, const unsigned char *protos
,
2247 unsigned int protos_len
)
2249 OPENSSL_free(ssl
->alpn_client_proto_list
);
2250 ssl
->alpn_client_proto_list
= OPENSSL_memdup(protos
, protos_len
);
2251 if (ssl
->alpn_client_proto_list
== NULL
) {
2252 SSLerr(SSL_F_SSL_SET_ALPN_PROTOS
, ERR_R_MALLOC_FAILURE
);
2255 ssl
->alpn_client_proto_list_len
= protos_len
;
2261 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
2262 * called during ClientHello processing in order to select an ALPN protocol
2263 * from the client's list of offered protocols.
2265 void SSL_CTX_set_alpn_select_cb(SSL_CTX
*ctx
,
2266 int (*cb
) (SSL
*ssl
,
2267 const unsigned char **out
,
2268 unsigned char *outlen
,
2269 const unsigned char *in
,
2271 void *arg
), void *arg
)
2273 ctx
->alpn_select_cb
= cb
;
2274 ctx
->alpn_select_cb_arg
= arg
;
2278 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from
2279 * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name
2280 * (not including the leading length-prefix byte). If the server didn't
2281 * respond with a negotiated protocol then |*len| will be zero.
2283 void SSL_get0_alpn_selected(const SSL
*ssl
, const unsigned char **data
,
2288 *data
= ssl
->s3
->alpn_selected
;
2292 *len
= ssl
->s3
->alpn_selected_len
;
2296 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
2297 const char *label
, size_t llen
,
2298 const unsigned char *p
, size_t plen
,
2301 if (s
->version
< TLS1_VERSION
)
2304 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
2309 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
2314 ((unsigned int)a
->session_id
[0]) |
2315 ((unsigned int)a
->session_id
[1] << 8L) |
2316 ((unsigned long)a
->session_id
[2] << 16L) |
2317 ((unsigned long)a
->session_id
[3] << 24L);
2322 * NB: If this function (or indeed the hash function which uses a sort of
2323 * coarser function than this one) is changed, ensure
2324 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
2325 * being able to construct an SSL_SESSION that will collide with any existing
2326 * session with a matching session ID.
2328 static int ssl_session_cmp(const SSL_SESSION
*a
, const SSL_SESSION
*b
)
2330 if (a
->ssl_version
!= b
->ssl_version
)
2332 if (a
->session_id_length
!= b
->session_id_length
)
2334 return (memcmp(a
->session_id
, b
->session_id
, a
->session_id_length
));
2338 * These wrapper functions should remain rather than redeclaring
2339 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
2340 * variable. The reason is that the functions aren't static, they're exposed
2344 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
2346 SSL_CTX
*ret
= NULL
;
2349 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_NULL_SSL_METHOD_PASSED
);
2353 if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS
, NULL
))
2356 if (FIPS_mode() && (meth
->version
< TLS1_VERSION
)) {
2357 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_AT_LEAST_TLS_1_0_NEEDED_IN_FIPS_MODE
);
2361 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
2362 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
2365 ret
= OPENSSL_zalloc(sizeof(*ret
));
2370 ret
->min_proto_version
= 0;
2371 ret
->max_proto_version
= 0;
2372 ret
->session_cache_mode
= SSL_SESS_CACHE_SERVER
;
2373 ret
->session_cache_size
= SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
2374 /* We take the system default. */
2375 ret
->session_timeout
= meth
->get_timeout();
2376 ret
->references
= 1;
2377 ret
->lock
= CRYPTO_THREAD_lock_new();
2378 if (ret
->lock
== NULL
) {
2379 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
2383 ret
->max_cert_list
= SSL_MAX_CERT_LIST_DEFAULT
;
2384 ret
->verify_mode
= SSL_VERIFY_NONE
;
2385 if ((ret
->cert
= ssl_cert_new()) == NULL
)
2388 ret
->sessions
= lh_SSL_SESSION_new(ssl_session_hash
, ssl_session_cmp
);
2389 if (ret
->sessions
== NULL
)
2391 ret
->cert_store
= X509_STORE_new();
2392 if (ret
->cert_store
== NULL
)
2394 #ifndef OPENSSL_NO_CT
2395 ret
->ctlog_store
= CTLOG_STORE_new();
2396 if (ret
->ctlog_store
== NULL
)
2399 if (!ssl_create_cipher_list(ret
->method
,
2400 &ret
->cipher_list
, &ret
->cipher_list_by_id
,
2401 SSL_DEFAULT_CIPHER_LIST
, ret
->cert
)
2402 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0) {
2403 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_LIBRARY_HAS_NO_CIPHERS
);
2407 ret
->param
= X509_VERIFY_PARAM_new();
2408 if (ret
->param
== NULL
)
2411 if ((ret
->md5
= EVP_get_digestbyname("ssl3-md5")) == NULL
) {
2412 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
2415 if ((ret
->sha1
= EVP_get_digestbyname("ssl3-sha1")) == NULL
) {
2416 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
2420 if ((ret
->client_CA
= sk_X509_NAME_new_null()) == NULL
)
2423 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
);
2425 /* No compression for DTLS */
2426 if (!(meth
->ssl3_enc
->enc_flags
& SSL_ENC_FLAG_DTLS
))
2427 ret
->comp_methods
= SSL_COMP_get_compression_methods();
2429 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2430 ret
->split_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
2432 /* Setup RFC4507 ticket keys */
2433 if ((RAND_bytes(ret
->tlsext_tick_key_name
, 16) <= 0)
2434 || (RAND_bytes(ret
->tlsext_tick_hmac_key
, 16) <= 0)
2435 || (RAND_bytes(ret
->tlsext_tick_aes_key
, 16) <= 0))
2436 ret
->options
|= SSL_OP_NO_TICKET
;
2438 #ifndef OPENSSL_NO_SRP
2439 if (!SSL_CTX_SRP_CTX_init(ret
))
2442 #ifndef OPENSSL_NO_ENGINE
2443 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2444 # define eng_strx(x) #x
2445 # define eng_str(x) eng_strx(x)
2446 /* Use specific client engine automatically... ignore errors */
2449 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2452 ENGINE_load_builtin_engines();
2453 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
2455 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
2461 * Default is to connect to non-RI servers. When RI is more widely
2462 * deployed might change this.
2464 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
2466 * Disable compression by default to prevent CRIME. Applications can
2467 * re-enable compression by configuring
2468 * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION);
2469 * or by using the SSL_CONF library.
2471 ret
->options
|= SSL_OP_NO_COMPRESSION
;
2475 SSLerr(SSL_F_SSL_CTX_NEW
, ERR_R_MALLOC_FAILURE
);
2481 void SSL_CTX_up_ref(SSL_CTX
*ctx
)
2484 CRYPTO_atomic_add(&ctx
->references
, 1, &i
, ctx
->lock
);
2487 void SSL_CTX_free(SSL_CTX
*a
)
2494 CRYPTO_atomic_add(&a
->references
, -1, &i
, a
->lock
);
2495 REF_PRINT_COUNT("SSL_CTX", a
);
2498 REF_ASSERT_ISNT(i
< 0);
2500 X509_VERIFY_PARAM_free(a
->param
);
2501 dane_ctx_final(&a
->dane
);
2504 * Free internal session cache. However: the remove_cb() may reference
2505 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2506 * after the sessions were flushed.
2507 * As the ex_data handling routines might also touch the session cache,
2508 * the most secure solution seems to be: empty (flush) the cache, then
2509 * free ex_data, then finally free the cache.
2510 * (See ticket [openssl.org #212].)
2512 if (a
->sessions
!= NULL
)
2513 SSL_CTX_flush_sessions(a
, 0);
2515 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
2516 lh_SSL_SESSION_free(a
->sessions
);
2517 X509_STORE_free(a
->cert_store
);
2518 #ifndef OPENSSL_NO_CT
2519 CTLOG_STORE_free(a
->ctlog_store
);
2521 sk_SSL_CIPHER_free(a
->cipher_list
);
2522 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
2523 ssl_cert_free(a
->cert
);
2524 sk_X509_NAME_pop_free(a
->client_CA
, X509_NAME_free
);
2525 sk_X509_pop_free(a
->extra_certs
, X509_free
);
2526 a
->comp_methods
= NULL
;
2527 #ifndef OPENSSL_NO_SRTP
2528 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
2530 #ifndef OPENSSL_NO_SRP
2531 SSL_CTX_SRP_CTX_free(a
);
2533 #ifndef OPENSSL_NO_ENGINE
2534 ENGINE_finish(a
->client_cert_engine
);
2537 #ifndef OPENSSL_NO_EC
2538 OPENSSL_free(a
->tlsext_ecpointformatlist
);
2539 OPENSSL_free(a
->tlsext_ellipticcurvelist
);
2541 OPENSSL_free(a
->alpn_client_proto_list
);
2543 CRYPTO_THREAD_lock_free(a
->lock
);
2548 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
2550 ctx
->default_passwd_callback
= cb
;
2553 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
, void *u
)
2555 ctx
->default_passwd_callback_userdata
= u
;
2558 pem_password_cb
*SSL_CTX_get_default_passwd_cb(SSL_CTX
*ctx
)
2560 return ctx
->default_passwd_callback
;
2563 void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX
*ctx
)
2565 return ctx
->default_passwd_callback_userdata
;
2568 void SSL_set_default_passwd_cb(SSL
*s
, pem_password_cb
*cb
)
2570 s
->default_passwd_callback
= cb
;
2573 void SSL_set_default_passwd_cb_userdata(SSL
*s
, void *u
)
2575 s
->default_passwd_callback_userdata
= u
;
2578 pem_password_cb
*SSL_get_default_passwd_cb(SSL
*s
)
2580 return s
->default_passwd_callback
;
2583 void *SSL_get_default_passwd_cb_userdata(SSL
*s
)
2585 return s
->default_passwd_callback_userdata
;
2588 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,
2589 int (*cb
) (X509_STORE_CTX
*, void *),
2592 ctx
->app_verify_callback
= cb
;
2593 ctx
->app_verify_arg
= arg
;
2596 void SSL_CTX_set_verify(SSL_CTX
*ctx
, int mode
,
2597 int (*cb
) (int, X509_STORE_CTX
*))
2599 ctx
->verify_mode
= mode
;
2600 ctx
->default_verify_callback
= cb
;
2603 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
, int depth
)
2605 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
2608 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
) (SSL
*ssl
, void *arg
),
2611 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
2614 void SSL_set_cert_cb(SSL
*s
, int (*cb
) (SSL
*ssl
, void *arg
), void *arg
)
2616 ssl_cert_set_cert_cb(s
->cert
, cb
, arg
);
2619 void ssl_set_masks(SSL
*s
)
2621 #if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_GOST)
2625 uint32_t *pvalid
= s
->s3
->tmp
.valid_flags
;
2626 int rsa_enc
, rsa_sign
, dh_tmp
, dsa_sign
;
2627 unsigned long mask_k
, mask_a
;
2628 #ifndef OPENSSL_NO_EC
2629 int have_ecc_cert
, ecdsa_ok
;
2635 #ifndef OPENSSL_NO_DH
2636 dh_tmp
= (c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
|| c
->dh_tmp_auto
);
2641 rsa_enc
= pvalid
[SSL_PKEY_RSA_ENC
] & CERT_PKEY_VALID
;
2642 rsa_sign
= pvalid
[SSL_PKEY_RSA_SIGN
] & CERT_PKEY_SIGN
;
2643 dsa_sign
= pvalid
[SSL_PKEY_DSA_SIGN
] & CERT_PKEY_SIGN
;
2644 #ifndef OPENSSL_NO_EC
2645 have_ecc_cert
= pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_VALID
;
2651 fprintf(stderr
, "dht=%d re=%d rs=%d ds=%d\n",
2652 dh_tmp
, rsa_enc
, rsa_sign
, dsa_sign
);
2655 #ifndef OPENSSL_NO_GOST
2656 cpk
= &(c
->pkeys
[SSL_PKEY_GOST12_512
]);
2657 if (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
) {
2658 mask_k
|= SSL_kGOST
;
2659 mask_a
|= SSL_aGOST12
;
2661 cpk
= &(c
->pkeys
[SSL_PKEY_GOST12_256
]);
2662 if (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
) {
2663 mask_k
|= SSL_kGOST
;
2664 mask_a
|= SSL_aGOST12
;
2666 cpk
= &(c
->pkeys
[SSL_PKEY_GOST01
]);
2667 if (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
) {
2668 mask_k
|= SSL_kGOST
;
2669 mask_a
|= SSL_aGOST01
;
2679 if (rsa_enc
|| rsa_sign
) {
2687 mask_a
|= SSL_aNULL
;
2690 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
2691 * depending on the key usage extension.
2693 #ifndef OPENSSL_NO_EC
2694 if (have_ecc_cert
) {
2696 cpk
= &c
->pkeys
[SSL_PKEY_ECC
];
2698 ex_kusage
= X509_get_key_usage(x
);
2699 ecdsa_ok
= ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
;
2700 if (!(pvalid
[SSL_PKEY_ECC
] & CERT_PKEY_SIGN
))
2703 mask_a
|= SSL_aECDSA
;
2707 #ifndef OPENSSL_NO_EC
2708 mask_k
|= SSL_kECDHE
;
2711 #ifndef OPENSSL_NO_PSK
2714 if (mask_k
& SSL_kRSA
)
2715 mask_k
|= SSL_kRSAPSK
;
2716 if (mask_k
& SSL_kDHE
)
2717 mask_k
|= SSL_kDHEPSK
;
2718 if (mask_k
& SSL_kECDHE
)
2719 mask_k
|= SSL_kECDHEPSK
;
2722 s
->s3
->tmp
.mask_k
= mask_k
;
2723 s
->s3
->tmp
.mask_a
= mask_a
;
2726 #ifndef OPENSSL_NO_EC
2728 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
2730 if (s
->s3
->tmp
.new_cipher
->algorithm_auth
& SSL_aECDSA
) {
2731 /* key usage, if present, must allow signing */
2732 if (!(X509_get_key_usage(x
) & X509v3_KU_DIGITAL_SIGNATURE
)) {
2733 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
,
2734 SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
2738 return 1; /* all checks are ok */
2743 static int ssl_get_server_cert_index(const SSL
*s
)
2746 idx
= ssl_cipher_get_cert_index(s
->s3
->tmp
.new_cipher
);
2747 if (idx
== SSL_PKEY_RSA_ENC
&& !s
->cert
->pkeys
[SSL_PKEY_RSA_ENC
].x509
)
2748 idx
= SSL_PKEY_RSA_SIGN
;
2749 if (idx
== SSL_PKEY_GOST_EC
) {
2750 if (s
->cert
->pkeys
[SSL_PKEY_GOST12_512
].x509
)
2751 idx
= SSL_PKEY_GOST12_512
;
2752 else if (s
->cert
->pkeys
[SSL_PKEY_GOST12_256
].x509
)
2753 idx
= SSL_PKEY_GOST12_256
;
2754 else if (s
->cert
->pkeys
[SSL_PKEY_GOST01
].x509
)
2755 idx
= SSL_PKEY_GOST01
;
2760 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX
, ERR_R_INTERNAL_ERROR
);
2764 CERT_PKEY
*ssl_get_server_send_pkey(SSL
*s
)
2770 if (!s
->s3
|| !s
->s3
->tmp
.new_cipher
)
2774 i
= ssl_get_server_cert_index(s
);
2776 /* This may or may not be an error. */
2781 return &c
->pkeys
[i
];
2784 EVP_PKEY
*ssl_get_sign_pkey(SSL
*s
, const SSL_CIPHER
*cipher
,
2787 unsigned long alg_a
;
2791 alg_a
= cipher
->algorithm_auth
;
2794 if ((alg_a
& SSL_aDSS
) &&
2795 (c
->pkeys
[SSL_PKEY_DSA_SIGN
].privatekey
!= NULL
))
2796 idx
= SSL_PKEY_DSA_SIGN
;
2797 else if (alg_a
& SSL_aRSA
) {
2798 if (c
->pkeys
[SSL_PKEY_RSA_SIGN
].privatekey
!= NULL
)
2799 idx
= SSL_PKEY_RSA_SIGN
;
2800 else if (c
->pkeys
[SSL_PKEY_RSA_ENC
].privatekey
!= NULL
)
2801 idx
= SSL_PKEY_RSA_ENC
;
2802 } else if ((alg_a
& SSL_aECDSA
) &&
2803 (c
->pkeys
[SSL_PKEY_ECC
].privatekey
!= NULL
))
2806 SSLerr(SSL_F_SSL_GET_SIGN_PKEY
, ERR_R_INTERNAL_ERROR
);
2810 *pmd
= s
->s3
->tmp
.md
[idx
];
2811 return c
->pkeys
[idx
].privatekey
;
2814 int ssl_get_server_cert_serverinfo(SSL
*s
, const unsigned char **serverinfo
,
2815 size_t *serverinfo_length
)
2819 *serverinfo_length
= 0;
2822 i
= ssl_get_server_cert_index(s
);
2826 if (c
->pkeys
[i
].serverinfo
== NULL
)
2829 *serverinfo
= c
->pkeys
[i
].serverinfo
;
2830 *serverinfo_length
= c
->pkeys
[i
].serverinfo_length
;
2834 void ssl_update_cache(SSL
*s
, int mode
)
2839 * If the session_id_length is 0, we are not supposed to cache it, and it
2840 * would be rather hard to do anyway :-)
2842 if (s
->session
->session_id_length
== 0)
2845 i
= s
->session_ctx
->session_cache_mode
;
2846 if ((i
& mode
) && (!s
->hit
)
2847 && ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
)
2848 || SSL_CTX_add_session(s
->session_ctx
, s
->session
))
2849 && (s
->session_ctx
->new_session_cb
!= NULL
)) {
2850 SSL_SESSION_up_ref(s
->session
);
2851 if (!s
->session_ctx
->new_session_cb(s
, s
->session
))
2852 SSL_SESSION_free(s
->session
);
2855 /* auto flush every 255 connections */
2856 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) && ((i
& mode
) == mode
)) {
2857 if ((((mode
& SSL_SESS_CACHE_CLIENT
)
2858 ? s
->session_ctx
->stats
.sess_connect_good
2859 : s
->session_ctx
->stats
.sess_accept_good
) & 0xff) == 0xff) {
2860 SSL_CTX_flush_sessions(s
->session_ctx
, (unsigned long)time(NULL
));
2865 const SSL_METHOD
*SSL_CTX_get_ssl_method(SSL_CTX
*ctx
)
2870 const SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
2875 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
2879 if (s
->method
!= meth
) {
2880 const SSL_METHOD
*sm
= s
->method
;
2881 int (*hf
)(SSL
*) = s
->handshake_func
;
2883 if (sm
->version
== meth
->version
)
2888 ret
= s
->method
->ssl_new(s
);
2891 if (hf
== sm
->ssl_connect
)
2892 s
->handshake_func
= meth
->ssl_connect
;
2893 else if (hf
== sm
->ssl_accept
)
2894 s
->handshake_func
= meth
->ssl_accept
;
2899 int SSL_get_error(const SSL
*s
, int i
)
2906 return (SSL_ERROR_NONE
);
2909 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
2910 * where we do encode the error
2912 if ((l
= ERR_peek_error()) != 0) {
2913 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
2914 return (SSL_ERROR_SYSCALL
);
2916 return (SSL_ERROR_SSL
);
2919 if ((i
< 0) && SSL_want_read(s
)) {
2920 bio
= SSL_get_rbio(s
);
2921 if (BIO_should_read(bio
))
2922 return (SSL_ERROR_WANT_READ
);
2923 else if (BIO_should_write(bio
))
2925 * This one doesn't make too much sense ... We never try to write
2926 * to the rbio, and an application program where rbio and wbio
2927 * are separate couldn't even know what it should wait for.
2928 * However if we ever set s->rwstate incorrectly (so that we have
2929 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
2930 * wbio *are* the same, this test works around that bug; so it
2931 * might be safer to keep it.
2933 return (SSL_ERROR_WANT_WRITE
);
2934 else if (BIO_should_io_special(bio
)) {
2935 reason
= BIO_get_retry_reason(bio
);
2936 if (reason
== BIO_RR_CONNECT
)
2937 return (SSL_ERROR_WANT_CONNECT
);
2938 else if (reason
== BIO_RR_ACCEPT
)
2939 return (SSL_ERROR_WANT_ACCEPT
);
2941 return (SSL_ERROR_SYSCALL
); /* unknown */
2945 if ((i
< 0) && SSL_want_write(s
)) {
2946 bio
= SSL_get_wbio(s
);
2947 if (BIO_should_write(bio
))
2948 return (SSL_ERROR_WANT_WRITE
);
2949 else if (BIO_should_read(bio
))
2951 * See above (SSL_want_read(s) with BIO_should_write(bio))
2953 return (SSL_ERROR_WANT_READ
);
2954 else if (BIO_should_io_special(bio
)) {
2955 reason
= BIO_get_retry_reason(bio
);
2956 if (reason
== BIO_RR_CONNECT
)
2957 return (SSL_ERROR_WANT_CONNECT
);
2958 else if (reason
== BIO_RR_ACCEPT
)
2959 return (SSL_ERROR_WANT_ACCEPT
);
2961 return (SSL_ERROR_SYSCALL
);
2964 if ((i
< 0) && SSL_want_x509_lookup(s
)) {
2965 return (SSL_ERROR_WANT_X509_LOOKUP
);
2967 if ((i
< 0) && SSL_want_async(s
)) {
2968 return SSL_ERROR_WANT_ASYNC
;
2972 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
2973 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
2974 return (SSL_ERROR_ZERO_RETURN
);
2976 return (SSL_ERROR_SYSCALL
);
2979 static int ssl_do_handshake_intern(void *vargs
)
2981 struct ssl_async_args
*args
;
2984 args
= (struct ssl_async_args
*)vargs
;
2987 return s
->handshake_func(s
);
2990 int SSL_do_handshake(SSL
*s
)
2994 if (s
->handshake_func
== NULL
) {
2995 SSLerr(SSL_F_SSL_DO_HANDSHAKE
, SSL_R_CONNECTION_TYPE_NOT_SET
);
2999 s
->method
->ssl_renegotiate_check(s
);
3001 if (SSL_in_init(s
) || SSL_in_before(s
)) {
3002 if((s
->mode
& SSL_MODE_ASYNC
) && ASYNC_get_current_job() == NULL
) {
3003 struct ssl_async_args args
;
3007 ret
= ssl_start_async_job(s
, &args
, ssl_do_handshake_intern
);
3009 ret
= s
->handshake_func(s
);
3015 void SSL_set_accept_state(SSL
*s
)
3019 ossl_statem_clear(s
);
3020 s
->handshake_func
= s
->method
->ssl_accept
;
3024 void SSL_set_connect_state(SSL
*s
)
3028 ossl_statem_clear(s
);
3029 s
->handshake_func
= s
->method
->ssl_connect
;
3033 int ssl_undefined_function(SSL
*s
)
3035 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3039 int ssl_undefined_void_function(void)
3041 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,
3042 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3046 int ssl_undefined_const_function(const SSL
*s
)
3051 const SSL_METHOD
*ssl_bad_method(int ver
)
3053 SSLerr(SSL_F_SSL_BAD_METHOD
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
3057 const char *ssl_protocol_to_string(int version
)
3059 if (version
== TLS1_2_VERSION
)
3061 else if (version
== TLS1_1_VERSION
)
3063 else if (version
== TLS1_VERSION
)
3065 else if (version
== SSL3_VERSION
)
3067 else if (version
== DTLS1_BAD_VER
)
3069 else if (version
== DTLS1_VERSION
)
3071 else if (version
== DTLS1_2_VERSION
)
3077 const char *SSL_get_version(const SSL
*s
)
3079 return ssl_protocol_to_string(s
->version
);
3082 SSL
*SSL_dup(SSL
*s
)
3084 STACK_OF(X509_NAME
) *sk
;
3089 /* If we're not quiescent, just up_ref! */
3090 if (!SSL_in_init(s
) || !SSL_in_before(s
)) {
3091 CRYPTO_atomic_add(&s
->references
, 1, &i
, s
->lock
);
3096 * Otherwise, copy configuration state, and session if set.
3098 if ((ret
= SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
3101 if (s
->session
!= NULL
) {
3103 * Arranges to share the same session via up_ref. This "copies"
3104 * session-id, SSL_METHOD, sid_ctx, and 'cert'
3106 if (!SSL_copy_session_id(ret
, s
))
3110 * No session has been established yet, so we have to expect that
3111 * s->cert or ret->cert will be changed later -- they should not both
3112 * point to the same object, and thus we can't use
3113 * SSL_copy_session_id.
3115 if (!SSL_set_ssl_method(ret
, s
->method
))
3118 if (s
->cert
!= NULL
) {
3119 ssl_cert_free(ret
->cert
);
3120 ret
->cert
= ssl_cert_dup(s
->cert
);
3121 if (ret
->cert
== NULL
)
3125 if (!SSL_set_session_id_context(ret
, s
->sid_ctx
, s
->sid_ctx_length
))
3129 ssl_dane_dup(ret
, s
);
3130 ret
->version
= s
->version
;
3131 ret
->options
= s
->options
;
3132 ret
->mode
= s
->mode
;
3133 SSL_set_max_cert_list(ret
, SSL_get_max_cert_list(s
));
3134 SSL_set_read_ahead(ret
, SSL_get_read_ahead(s
));
3135 ret
->msg_callback
= s
->msg_callback
;
3136 ret
->msg_callback_arg
= s
->msg_callback_arg
;
3137 SSL_set_verify(ret
, SSL_get_verify_mode(s
), SSL_get_verify_callback(s
));
3138 SSL_set_verify_depth(ret
, SSL_get_verify_depth(s
));
3139 ret
->generate_session_id
= s
->generate_session_id
;
3141 SSL_set_info_callback(ret
, SSL_get_info_callback(s
));
3143 /* copy app data, a little dangerous perhaps */
3144 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
3147 /* setup rbio, and wbio */
3148 if (s
->rbio
!= NULL
) {
3149 if (!BIO_dup_state(s
->rbio
, (char *)&ret
->rbio
))
3152 if (s
->wbio
!= NULL
) {
3153 if (s
->wbio
!= s
->rbio
) {
3154 if (!BIO_dup_state(s
->wbio
, (char *)&ret
->wbio
))
3157 ret
->wbio
= ret
->rbio
;
3160 ret
->server
= s
->server
;
3161 if (s
->handshake_func
) {
3163 SSL_set_accept_state(ret
);
3165 SSL_set_connect_state(ret
);
3167 ret
->shutdown
= s
->shutdown
;
3170 ret
->default_passwd_callback
= s
->default_passwd_callback
;
3171 ret
->default_passwd_callback_userdata
= s
->default_passwd_callback_userdata
;
3173 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
3175 /* dup the cipher_list and cipher_list_by_id stacks */
3176 if (s
->cipher_list
!= NULL
) {
3177 if ((ret
->cipher_list
= sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
3180 if (s
->cipher_list_by_id
!= NULL
)
3181 if ((ret
->cipher_list_by_id
= sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
3185 /* Dup the client_CA list */
3186 if (s
->client_CA
!= NULL
) {
3187 if ((sk
= sk_X509_NAME_dup(s
->client_CA
)) == NULL
)
3189 ret
->client_CA
= sk
;
3190 for (i
= 0; i
< sk_X509_NAME_num(sk
); i
++) {
3191 xn
= sk_X509_NAME_value(sk
, i
);
3192 if (sk_X509_NAME_set(sk
, i
, X509_NAME_dup(xn
)) == NULL
) {
3205 void ssl_clear_cipher_ctx(SSL
*s
)
3207 if (s
->enc_read_ctx
!= NULL
) {
3208 EVP_CIPHER_CTX_free(s
->enc_read_ctx
);
3209 s
->enc_read_ctx
= NULL
;
3211 if (s
->enc_write_ctx
!= NULL
) {
3212 EVP_CIPHER_CTX_free(s
->enc_write_ctx
);
3213 s
->enc_write_ctx
= NULL
;
3215 #ifndef OPENSSL_NO_COMP
3216 COMP_CTX_free(s
->expand
);
3218 COMP_CTX_free(s
->compress
);
3223 X509
*SSL_get_certificate(const SSL
*s
)
3225 if (s
->cert
!= NULL
)
3226 return (s
->cert
->key
->x509
);
3231 EVP_PKEY
*SSL_get_privatekey(const SSL
*s
)
3233 if (s
->cert
!= NULL
)
3234 return (s
->cert
->key
->privatekey
);
3239 X509
*SSL_CTX_get0_certificate(const SSL_CTX
*ctx
)
3241 if (ctx
->cert
!= NULL
)
3242 return ctx
->cert
->key
->x509
;
3247 EVP_PKEY
*SSL_CTX_get0_privatekey(const SSL_CTX
*ctx
)
3249 if (ctx
->cert
!= NULL
)
3250 return ctx
->cert
->key
->privatekey
;
3255 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
3257 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
3258 return (s
->session
->cipher
);
3262 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
3264 #ifndef OPENSSL_NO_COMP
3265 return s
->compress
? COMP_CTX_get_method(s
->compress
) : NULL
;
3271 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
3273 #ifndef OPENSSL_NO_COMP
3274 return s
->expand
? COMP_CTX_get_method(s
->expand
) : NULL
;
3280 int ssl_init_wbio_buffer(SSL
*s
, int push
)
3284 if (s
->bbio
== NULL
) {
3285 bbio
= BIO_new(BIO_f_buffer());
3291 if (s
->bbio
== s
->wbio
)
3292 s
->wbio
= BIO_pop(s
->wbio
);
3294 (void)BIO_reset(bbio
);
3295 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
3296 if (!BIO_set_read_buffer_size(bbio
, 1)) {
3297 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
, ERR_R_BUF_LIB
);
3301 if (s
->wbio
!= bbio
)
3302 s
->wbio
= BIO_push(bbio
, s
->wbio
);
3304 if (s
->wbio
== bbio
)
3305 s
->wbio
= BIO_pop(bbio
);
3310 void ssl_free_wbio_buffer(SSL
*s
)
3312 /* callers ensure s is never null */
3313 if (s
->bbio
== NULL
)
3316 if (s
->bbio
== s
->wbio
) {
3317 /* remove buffering */
3318 s
->wbio
= BIO_pop(s
->wbio
);
3321 * not the usual REF_DEBUG, but this avoids
3322 * adding one more preprocessor symbol
3324 assert(s
->wbio
!= NULL
);
3331 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
, int mode
)
3333 ctx
->quiet_shutdown
= mode
;
3336 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
3338 return (ctx
->quiet_shutdown
);
3341 void SSL_set_quiet_shutdown(SSL
*s
, int mode
)
3343 s
->quiet_shutdown
= mode
;
3346 int SSL_get_quiet_shutdown(const SSL
*s
)
3348 return (s
->quiet_shutdown
);
3351 void SSL_set_shutdown(SSL
*s
, int mode
)
3356 int SSL_get_shutdown(const SSL
*s
)
3358 return (s
->shutdown
);
3361 int SSL_version(const SSL
*s
)
3363 return (s
->version
);
3366 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
3371 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
*ctx
)
3374 if (ssl
->ctx
== ctx
)
3377 ctx
= ssl
->initial_ctx
;
3378 new_cert
= ssl_cert_dup(ctx
->cert
);
3379 if (new_cert
== NULL
) {
3382 ssl_cert_free(ssl
->cert
);
3383 ssl
->cert
= new_cert
;
3386 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
3387 * so setter APIs must prevent invalid lengths from entering the system.
3389 OPENSSL_assert(ssl
->sid_ctx_length
<= sizeof(ssl
->sid_ctx
));
3392 * If the session ID context matches that of the parent SSL_CTX,
3393 * inherit it from the new SSL_CTX as well. If however the context does
3394 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
3395 * leave it unchanged.
3397 if ((ssl
->ctx
!= NULL
) &&
3398 (ssl
->sid_ctx_length
== ssl
->ctx
->sid_ctx_length
) &&
3399 (memcmp(ssl
->sid_ctx
, ssl
->ctx
->sid_ctx
, ssl
->sid_ctx_length
) == 0)) {
3400 ssl
->sid_ctx_length
= ctx
->sid_ctx_length
;
3401 memcpy(&ssl
->sid_ctx
, &ctx
->sid_ctx
, sizeof(ssl
->sid_ctx
));
3404 SSL_CTX_up_ref(ctx
);
3405 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
3411 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
3413 return (X509_STORE_set_default_paths(ctx
->cert_store
));
3416 int SSL_CTX_set_default_verify_dir(SSL_CTX
*ctx
)
3418 X509_LOOKUP
*lookup
;
3420 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_hash_dir());
3423 X509_LOOKUP_add_dir(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
3425 /* Clear any errors if the default directory does not exist */
3431 int SSL_CTX_set_default_verify_file(SSL_CTX
*ctx
)
3433 X509_LOOKUP
*lookup
;
3435 lookup
= X509_STORE_add_lookup(ctx
->cert_store
, X509_LOOKUP_file());
3439 X509_LOOKUP_load_file(lookup
, NULL
, X509_FILETYPE_DEFAULT
);
3441 /* Clear any errors if the default file does not exist */
3447 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
3450 return (X509_STORE_load_locations(ctx
->cert_store
, CAfile
, CApath
));
3453 void SSL_set_info_callback(SSL
*ssl
,
3454 void (*cb
) (const SSL
*ssl
, int type
, int val
))
3456 ssl
->info_callback
= cb
;
3460 * One compiler (Diab DCC) doesn't like argument names in returned function
3463 void (*SSL_get_info_callback(const SSL
*ssl
)) (const SSL
* /* ssl */ ,
3466 return ssl
->info_callback
;
3469 void SSL_set_verify_result(SSL
*ssl
, long arg
)
3471 ssl
->verify_result
= arg
;
3474 long SSL_get_verify_result(const SSL
*ssl
)
3476 return (ssl
->verify_result
);
3479 size_t SSL_get_client_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
3482 return sizeof(ssl
->s3
->client_random
);
3483 if (outlen
> sizeof(ssl
->s3
->client_random
))
3484 outlen
= sizeof(ssl
->s3
->client_random
);
3485 memcpy(out
, ssl
->s3
->client_random
, outlen
);
3489 size_t SSL_get_server_random(const SSL
*ssl
, unsigned char *out
, size_t outlen
)
3492 return sizeof(ssl
->s3
->server_random
);
3493 if (outlen
> sizeof(ssl
->s3
->server_random
))
3494 outlen
= sizeof(ssl
->s3
->server_random
);
3495 memcpy(out
, ssl
->s3
->server_random
, outlen
);
3499 size_t SSL_SESSION_get_master_key(const SSL_SESSION
*session
,
3500 unsigned char *out
, size_t outlen
)
3502 if (session
->master_key_length
< 0) {
3503 /* Should never happen */
3507 return session
->master_key_length
;
3508 if (outlen
> (size_t)session
->master_key_length
)
3509 outlen
= session
->master_key_length
;
3510 memcpy(out
, session
->master_key
, outlen
);
3514 int SSL_set_ex_data(SSL
*s
, int idx
, void *arg
)
3516 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
3519 void *SSL_get_ex_data(const SSL
*s
, int idx
)
3521 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
3524 int SSL_CTX_set_ex_data(SSL_CTX
*s
, int idx
, void *arg
)
3526 return (CRYPTO_set_ex_data(&s
->ex_data
, idx
, arg
));
3529 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
, int idx
)
3531 return (CRYPTO_get_ex_data(&s
->ex_data
, idx
));
3539 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
3541 return (ctx
->cert_store
);
3544 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
, X509_STORE
*store
)
3546 X509_STORE_free(ctx
->cert_store
);
3547 ctx
->cert_store
= store
;
3550 int SSL_want(const SSL
*s
)
3552 return (s
->rwstate
);
3556 * \brief Set the callback for generating temporary DH keys.
3557 * \param ctx the SSL context.
3558 * \param dh the callback
3561 #ifndef OPENSSL_NO_DH
3562 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,
3563 DH
*(*dh
) (SSL
*ssl
, int is_export
,
3566 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
3569 void SSL_set_tmp_dh_callback(SSL
*ssl
, DH
*(*dh
) (SSL
*ssl
, int is_export
,
3572 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_TMP_DH_CB
, (void (*)(void))dh
);
3576 #ifndef OPENSSL_NO_PSK
3577 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
3579 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3580 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
,
3581 SSL_R_DATA_LENGTH_TOO_LONG
);
3584 OPENSSL_free(ctx
->cert
->psk_identity_hint
);
3585 if (identity_hint
!= NULL
) {
3586 ctx
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
3587 if (ctx
->cert
->psk_identity_hint
== NULL
)
3590 ctx
->cert
->psk_identity_hint
= NULL
;
3594 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
3599 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
) {
3600 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
3603 OPENSSL_free(s
->cert
->psk_identity_hint
);
3604 if (identity_hint
!= NULL
) {
3605 s
->cert
->psk_identity_hint
= OPENSSL_strdup(identity_hint
);
3606 if (s
->cert
->psk_identity_hint
== NULL
)
3609 s
->cert
->psk_identity_hint
= NULL
;
3613 const char *SSL_get_psk_identity_hint(const SSL
*s
)
3615 if (s
== NULL
|| s
->session
== NULL
)
3617 return (s
->session
->psk_identity_hint
);
3620 const char *SSL_get_psk_identity(const SSL
*s
)
3622 if (s
== NULL
|| s
->session
== NULL
)
3624 return (s
->session
->psk_identity
);
3627 void SSL_set_psk_client_callback(SSL
*s
,
3628 unsigned int (*cb
) (SSL
*ssl
,
3637 s
->psk_client_callback
= cb
;
3640 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
,
3641 unsigned int (*cb
) (SSL
*ssl
,
3650 ctx
->psk_client_callback
= cb
;
3653 void SSL_set_psk_server_callback(SSL
*s
,
3654 unsigned int (*cb
) (SSL
*ssl
,
3655 const char *identity
,
3660 s
->psk_server_callback
= cb
;
3663 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
,
3664 unsigned int (*cb
) (SSL
*ssl
,
3665 const char *identity
,
3670 ctx
->psk_server_callback
= cb
;
3674 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
,
3675 void (*cb
) (int write_p
, int version
,
3676 int content_type
, const void *buf
,
3677 size_t len
, SSL
*ssl
, void *arg
))
3679 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
3682 void SSL_set_msg_callback(SSL
*ssl
,
3683 void (*cb
) (int write_p
, int version
,
3684 int content_type
, const void *buf
,
3685 size_t len
, SSL
*ssl
, void *arg
))
3687 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
3690 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
3691 int (*cb
) (SSL
*ssl
,
3695 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
3696 (void (*)(void))cb
);
3699 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
3700 int (*cb
) (SSL
*ssl
,
3701 int is_forward_secure
))
3703 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
3704 (void (*)(void))cb
);
3708 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3709 * vairable, freeing EVP_MD_CTX previously stored in that variable, if any.
3710 * If EVP_MD pointer is passed, initializes ctx with this md Returns newly
3714 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
, const EVP_MD
*md
)
3716 ssl_clear_hash_ctx(hash
);
3717 *hash
= EVP_MD_CTX_new();
3718 if (*hash
== NULL
|| (md
&& EVP_DigestInit_ex(*hash
, md
, NULL
) <= 0)) {
3719 EVP_MD_CTX_free(*hash
);
3726 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
3730 EVP_MD_CTX_free(*hash
);
3734 /* Retrieve handshake hashes */
3735 int ssl_handshake_hash(SSL
*s
, unsigned char *out
, int outlen
)
3737 EVP_MD_CTX
*ctx
= NULL
;
3738 EVP_MD_CTX
*hdgst
= s
->s3
->handshake_dgst
;
3739 int ret
= EVP_MD_CTX_size(hdgst
);
3740 if (ret
< 0 || ret
> outlen
) {
3744 ctx
= EVP_MD_CTX_new();
3749 if (!EVP_MD_CTX_copy_ex(ctx
, hdgst
)
3750 || EVP_DigestFinal_ex(ctx
, out
, NULL
) <= 0)
3753 EVP_MD_CTX_free(ctx
);
3757 int SSL_session_reused(SSL
*s
)
3762 int SSL_is_server(SSL
*s
)
3767 #if OPENSSL_API_COMPAT < 0x10100000L
3768 void SSL_set_debug(SSL
*s
, int debug
)
3770 /* Old function was do-nothing anyway... */
3777 void SSL_set_security_level(SSL
*s
, int level
)
3779 s
->cert
->sec_level
= level
;
3782 int SSL_get_security_level(const SSL
*s
)
3784 return s
->cert
->sec_level
;
3787 void SSL_set_security_callback(SSL
*s
,
3788 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
, int op
,
3789 int bits
, int nid
, void *other
,
3792 s
->cert
->sec_cb
= cb
;
3795 int (*SSL_get_security_callback(const SSL
*s
)) (const SSL
*s
, const SSL_CTX
*ctx
, int op
,
3797 void *other
, void *ex
) {
3798 return s
->cert
->sec_cb
;
3801 void SSL_set0_security_ex_data(SSL
*s
, void *ex
)
3803 s
->cert
->sec_ex
= ex
;
3806 void *SSL_get0_security_ex_data(const SSL
*s
)
3808 return s
->cert
->sec_ex
;
3811 void SSL_CTX_set_security_level(SSL_CTX
*ctx
, int level
)
3813 ctx
->cert
->sec_level
= level
;
3816 int SSL_CTX_get_security_level(const SSL_CTX
*ctx
)
3818 return ctx
->cert
->sec_level
;
3821 void SSL_CTX_set_security_callback(SSL_CTX
*ctx
,
3822 int (*cb
) (const SSL
*s
, const SSL_CTX
*ctx
, int op
,
3823 int bits
, int nid
, void *other
,
3826 ctx
->cert
->sec_cb
= cb
;
3829 int (*SSL_CTX_get_security_callback(const SSL_CTX
*ctx
)) (const SSL
*s
,
3835 return ctx
->cert
->sec_cb
;
3838 void SSL_CTX_set0_security_ex_data(SSL_CTX
*ctx
, void *ex
)
3840 ctx
->cert
->sec_ex
= ex
;
3843 void *SSL_CTX_get0_security_ex_data(const SSL_CTX
*ctx
)
3845 return ctx
->cert
->sec_ex
;
3850 * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that
3851 * can return unsigned long, instead of the generic long return value from the
3852 * control interface.
3854 unsigned long SSL_CTX_get_options(const SSL_CTX
*ctx
)
3856 return ctx
->options
;
3858 unsigned long SSL_get_options(const SSL
* s
)
3862 unsigned long SSL_CTX_set_options(SSL_CTX
*ctx
, unsigned long op
)
3864 return ctx
->options
|= op
;
3866 unsigned long SSL_set_options(SSL
*s
, unsigned long op
)
3868 return s
->options
|= op
;
3870 unsigned long SSL_CTX_clear_options(SSL_CTX
*ctx
, unsigned long op
)
3872 return ctx
->options
&= ~op
;
3874 unsigned long SSL_clear_options(SSL
*s
, unsigned long op
)
3876 return s
->options
&= ~op
;
3879 STACK_OF(X509
) *SSL_get0_verified_chain(const SSL
*s
)
3881 return s
->verified_chain
;
3884 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
, ssl_cipher_id
);
3886 #ifndef OPENSSL_NO_CT
3889 * Moves SCTs from the |src| stack to the |dst| stack.
3890 * The source of each SCT will be set to |origin|.
3891 * If |dst| points to a NULL pointer, a new stack will be created and owned by
3893 * Returns the number of SCTs moved, or a negative integer if an error occurs.
3895 static int ct_move_scts(STACK_OF(SCT
) **dst
, STACK_OF(SCT
) *src
, sct_source_t origin
)
3901 *dst
= sk_SCT_new_null();
3903 SSLerr(SSL_F_CT_MOVE_SCTS
, ERR_R_MALLOC_FAILURE
);
3908 while ((sct
= sk_SCT_pop(src
)) != NULL
) {
3909 if (SCT_set_source(sct
, origin
) != 1)
3912 if (sk_SCT_push(*dst
, sct
) <= 0)
3920 sk_SCT_push(src
, sct
); /* Put the SCT back */
3925 * Look for data collected during ServerHello and parse if found.
3926 * Return 1 on success, 0 on failure.
3928 static int ct_extract_tls_extension_scts(SSL
*s
)
3930 int scts_extracted
= 0;
3932 if (s
->tlsext_scts
!= NULL
) {
3933 const unsigned char *p
= s
->tlsext_scts
;
3934 STACK_OF(SCT
) *scts
= o2i_SCT_LIST(NULL
, &p
, s
->tlsext_scts_len
);
3936 scts_extracted
= ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_TLS_EXTENSION
);
3938 SCT_LIST_free(scts
);
3941 return scts_extracted
;
3945 * Checks for an OCSP response and then attempts to extract any SCTs found if it
3946 * contains an SCT X509 extension. They will be stored in |s->scts|.
3948 * - The number of SCTs extracted, assuming an OCSP response exists.
3949 * - 0 if no OCSP response exists or it contains no SCTs.
3950 * - A negative integer if an error occurs.
3952 static int ct_extract_ocsp_response_scts(SSL
*s
)
3954 int scts_extracted
= 0;
3955 const unsigned char *p
;
3956 OCSP_BASICRESP
*br
= NULL
;
3957 OCSP_RESPONSE
*rsp
= NULL
;
3958 STACK_OF(SCT
) *scts
= NULL
;
3961 if (s
->tlsext_ocsp_resp
== NULL
|| s
->tlsext_ocsp_resplen
== 0)
3964 p
= s
->tlsext_ocsp_resp
;
3965 rsp
= d2i_OCSP_RESPONSE(NULL
, &p
, s
->tlsext_ocsp_resplen
);
3969 br
= OCSP_response_get1_basic(rsp
);
3973 for (i
= 0; i
< OCSP_resp_count(br
); ++i
) {
3974 OCSP_SINGLERESP
*single
= OCSP_resp_get0(br
, i
);
3979 scts
= OCSP_SINGLERESP_get1_ext_d2i(single
, NID_ct_cert_scts
, NULL
, NULL
);
3980 scts_extracted
= ct_move_scts(&s
->scts
, scts
,
3981 SCT_SOURCE_OCSP_STAPLED_RESPONSE
);
3982 if (scts_extracted
< 0)
3986 SCT_LIST_free(scts
);
3987 OCSP_BASICRESP_free(br
);
3988 OCSP_RESPONSE_free(rsp
);
3989 return scts_extracted
;
3993 * Attempts to extract SCTs from the peer certificate.
3994 * Return the number of SCTs extracted, or a negative integer if an error
3997 static int ct_extract_x509v3_extension_scts(SSL
*s
)
3999 int scts_extracted
= 0;
4000 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4003 STACK_OF(SCT
) *scts
=
4004 X509_get_ext_d2i(cert
, NID_ct_precert_scts
, NULL
, NULL
);
4007 ct_move_scts(&s
->scts
, scts
, SCT_SOURCE_X509V3_EXTENSION
);
4009 SCT_LIST_free(scts
);
4012 return scts_extracted
;
4016 * Attempts to find all received SCTs by checking TLS extensions, the OCSP
4017 * response (if it exists) and X509v3 extensions in the certificate.
4018 * Returns NULL if an error occurs.
4020 const STACK_OF(SCT
) *SSL_get0_peer_scts(SSL
*s
)
4022 if (!s
->scts_parsed
) {
4023 if (ct_extract_tls_extension_scts(s
) < 0 ||
4024 ct_extract_ocsp_response_scts(s
) < 0 ||
4025 ct_extract_x509v3_extension_scts(s
) < 0)
4035 int SSL_set_ct_validation_callback(SSL
*s
, ct_validation_cb callback
, void *arg
)
4040 * Since code exists that uses the custom extension handler for CT, look
4041 * for this and throw an error if they have already registered to use CT.
4043 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(s
->ctx
,
4044 TLSEXT_TYPE_signed_certificate_timestamp
)) {
4045 SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK
,
4046 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4050 s
->ct_validation_callback
= callback
;
4051 s
->ct_validation_callback_arg
= arg
;
4053 if (callback
!= NULL
) {
4054 /* If we are validating CT, then we MUST accept SCTs served via OCSP */
4055 if (!SSL_set_tlsext_status_type(s
, TLSEXT_STATUSTYPE_ocsp
))
4064 int SSL_CTX_set_ct_validation_callback(SSL_CTX
*ctx
, ct_validation_cb callback
,
4070 * Since code exists that uses the custom extension handler for CT, look for
4071 * this and throw an error if they have already registered to use CT.
4073 if (callback
!= NULL
&& SSL_CTX_has_client_custom_ext(ctx
,
4074 TLSEXT_TYPE_signed_certificate_timestamp
)) {
4075 SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK
,
4076 SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED
);
4080 ctx
->ct_validation_callback
= callback
;
4081 ctx
->ct_validation_callback_arg
= arg
;
4087 ct_validation_cb
SSL_get_ct_validation_callback(const SSL
*s
)
4089 return s
->ct_validation_callback
;
4092 ct_validation_cb
SSL_CTX_get_ct_validation_callback(const SSL_CTX
*ctx
)
4094 return ctx
->ct_validation_callback
;
4097 int ssl_validate_ct(SSL
*s
)
4100 X509
*cert
= s
->session
!= NULL
? s
->session
->peer
: NULL
;
4101 X509
*issuer
= NULL
;
4102 CT_POLICY_EVAL_CTX
*ctx
= NULL
;
4103 const STACK_OF(SCT
) *scts
;
4105 /* If no callback is set, attempt no validation - just return success */
4106 if (s
->ct_validation_callback
== NULL
)
4110 SSLerr(SSL_F_SSL_VALIDATE_CT
, SSL_R_NO_CERTIFICATE_ASSIGNED
);
4114 if (s
->verified_chain
!= NULL
&& sk_X509_num(s
->verified_chain
) > 1)
4115 issuer
= sk_X509_value(s
->verified_chain
, 1);
4117 ctx
= CT_POLICY_EVAL_CTX_new();
4119 SSLerr(SSL_F_SSL_VALIDATE_CT
, ERR_R_MALLOC_FAILURE
);
4123 CT_POLICY_EVAL_CTX_set0_cert(ctx
, cert
);
4124 CT_POLICY_EVAL_CTX_set0_issuer(ctx
, issuer
);
4125 CT_POLICY_EVAL_CTX_set0_log_store(ctx
, s
->ctx
->ctlog_store
);
4127 scts
= SSL_get0_peer_scts(s
);
4129 if (SCT_LIST_validate(scts
, ctx
) != 1) {
4130 SSLerr(SSL_F_SSL_VALIDATE_CT
, SSL_R_SCT_VERIFICATION_FAILED
);
4134 ret
= s
->ct_validation_callback(ctx
, scts
, s
->ct_validation_callback_arg
);
4136 ret
= 0; /* This function returns 0 on failure */
4139 CT_POLICY_EVAL_CTX_free(ctx
);
4143 int SSL_CTX_set_default_ctlog_list_file(SSL_CTX
*ctx
)
4145 return CTLOG_STORE_load_default_file(ctx
->ctlog_store
);
4148 int SSL_CTX_set_ctlog_list_file(SSL_CTX
*ctx
, const char *path
)
4150 return CTLOG_STORE_load_file(ctx
->ctlog_store
, path
);
4153 void SSL_CTX_set0_ctlog_store(SSL_CTX
*ctx
, CTLOG_STORE
*logs
)
4155 CTLOG_STORE_free(ctx
->ctlog_store
);
4156 ctx
->ctlog_store
= logs
;
4159 const CTLOG_STORE
*SSL_CTX_get0_ctlog_store(const SSL_CTX
*ctx
)
4161 return ctx
->ctlog_store
;