1 /*! \file ssl/ssl_lib.c
2 * \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 <openssl/crypto.h>
150 #include "ssl_locl.h"
151 #include "kssl_lcl.h"
152 #include <openssl/objects.h>
153 #include <openssl/lhash.h>
154 #include <openssl/x509v3.h>
155 #include <openssl/rand.h>
156 #include <openssl/ocsp.h>
157 #ifndef OPENSSL_NO_DH
158 #include <openssl/dh.h>
160 #ifndef OPENSSL_NO_ENGINE
161 #include <openssl/engine.h>
164 const char *SSL_version_str
=OPENSSL_VERSION_TEXT
;
166 SSL3_ENC_METHOD ssl3_undef_enc_method
={
167 /* evil casts, but these functions are only called if there's a library bug */
168 (int (*)(SSL
*,int))ssl_undefined_function
,
169 (int (*)(SSL
*, unsigned char *, int))ssl_undefined_function
,
170 ssl_undefined_function
,
171 (int (*)(SSL
*, unsigned char *, unsigned char *, int))ssl_undefined_function
,
172 (int (*)(SSL
*, int))ssl_undefined_function
,
173 (int (*)(SSL
*, const char*, int, unsigned char *))ssl_undefined_function
,
174 0, /* finish_mac_length */
175 (int (*)(SSL
*, int, unsigned char *))ssl_undefined_function
,
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 *, unsigned int, const char *,
182 unsigned int, const unsigned char *, unsigned int,
183 int use_context
))ssl_undefined_function
,
186 int SSL_clear(SSL
*s
)
189 if (s
->method
== NULL
)
191 SSLerr(SSL_F_SSL_CLEAR
,SSL_R_NO_METHOD_SPECIFIED
);
195 if (ssl_clear_bad_session(s
))
197 SSL_SESSION_free(s
->session
);
205 #if 0 /* Disabled since version 1.10 of this file (early return not
206 * needed because SSL_clear is not called when doing renegotiation) */
207 /* This is set if we are doing dynamic renegotiation so keep
208 * the old cipher. It is sort of a SSL_clear_lite :-) */
209 if (s
->renegotiate
) return(1);
213 SSLerr(SSL_F_SSL_CLEAR
,ERR_R_INTERNAL_ERROR
);
220 s
->state
=SSL_ST_BEFORE
|((s
->server
)?SSL_ST_ACCEPT
:SSL_ST_CONNECT
);
222 s
->version
=s
->method
->version
;
223 s
->client_version
=s
->version
;
224 s
->rwstate
=SSL_NOTHING
;
225 s
->rstate
=SSL_ST_READ_HEADER
;
227 s
->read_ahead
=s
->ctx
->read_ahead
;
230 if (s
->init_buf
!= NULL
)
232 BUF_MEM_free(s
->init_buf
);
236 ssl_clear_cipher_ctx(s
);
237 ssl_clear_hash_ctx(&s
->read_hash
);
238 ssl_clear_hash_ctx(&s
->write_hash
);
243 /* Check to see if we were changed into a different method, if
244 * so, revert back if we are not doing session-id reuse. */
245 if (!s
->in_handshake
&& (s
->session
== NULL
) && (s
->method
!= s
->ctx
->method
))
247 s
->method
->ssl_free(s
);
248 s
->method
=s
->ctx
->method
;
249 if (!s
->method
->ssl_new(s
))
254 s
->method
->ssl_clear(s
);
258 /** Used to change an SSL_CTXs default SSL method type */
259 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
,const SSL_METHOD
*meth
)
261 STACK_OF(SSL_CIPHER
) *sk
;
265 sk
=ssl_create_cipher_list(ctx
->method
,&(ctx
->cipher_list
),
266 &(ctx
->cipher_list_by_id
),
267 meth
->version
== SSL2_VERSION
? "SSLv2" : SSL_DEFAULT_CIPHER_LIST
);
268 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0))
270 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
276 SSL
*SSL_new(SSL_CTX
*ctx
)
282 SSLerr(SSL_F_SSL_NEW
,SSL_R_NULL_SSL_CTX
);
285 if (ctx
->method
== NULL
)
287 SSLerr(SSL_F_SSL_NEW
,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
291 s
=(SSL
*)OPENSSL_malloc(sizeof(SSL
));
292 if (s
== NULL
) goto err
;
293 memset(s
,0,sizeof(SSL
));
295 #ifndef OPENSSL_NO_KRB5
296 s
->kssl_ctx
= kssl_ctx_new();
297 #endif /* OPENSSL_NO_KRB5 */
299 s
->options
=ctx
->options
;
301 s
->max_cert_list
=ctx
->max_cert_list
;
303 if (ctx
->cert
!= NULL
)
305 /* Earlier library versions used to copy the pointer to
306 * the CERT, not its contents; only when setting new
307 * parameters for the per-SSL copy, ssl_cert_new would be
308 * called (and the direct reference to the per-SSL_CTX
309 * settings would be lost, but those still were indirectly
310 * accessed for various purposes, and for that reason they
311 * used to be known as s->ctx->default_cert).
312 * Now we don't look at the SSL_CTX's CERT after having
313 * duplicated it once. */
315 s
->cert
= ssl_cert_dup(ctx
->cert
);
320 s
->cert
=NULL
; /* Cannot really happen (see SSL_CTX_new) */
322 s
->read_ahead
=ctx
->read_ahead
;
323 s
->msg_callback
=ctx
->msg_callback
;
324 s
->msg_callback_arg
=ctx
->msg_callback_arg
;
325 s
->verify_mode
=ctx
->verify_mode
;
326 s
->not_resumable_session_cb
=ctx
->not_resumable_session_cb
;
328 s
->verify_depth
=ctx
->verify_depth
;
330 s
->sid_ctx_length
=ctx
->sid_ctx_length
;
331 OPENSSL_assert(s
->sid_ctx_length
<= sizeof s
->sid_ctx
);
332 memcpy(&s
->sid_ctx
,&ctx
->sid_ctx
,sizeof(s
->sid_ctx
));
333 s
->verify_callback
=ctx
->default_verify_callback
;
334 s
->generate_session_id
=ctx
->generate_session_id
;
336 s
->param
= X509_VERIFY_PARAM_new();
339 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
341 s
->purpose
= ctx
->purpose
;
342 s
->trust
= ctx
->trust
;
344 s
->quiet_shutdown
=ctx
->quiet_shutdown
;
345 s
->max_send_fragment
= ctx
->max_send_fragment
;
347 CRYPTO_add(&ctx
->references
,1,CRYPTO_LOCK_SSL_CTX
);
349 #ifndef OPENSSL_NO_TLSEXT
350 s
->tlsext_debug_cb
= 0;
351 s
->tlsext_debug_arg
= NULL
;
352 s
->tlsext_ticket_expected
= 0;
353 s
->tlsext_status_type
= -1;
354 s
->tlsext_status_expected
= 0;
355 s
->tlsext_ocsp_ids
= NULL
;
356 s
->tlsext_ocsp_exts
= NULL
;
357 s
->tlsext_ocsp_resp
= NULL
;
358 s
->tlsext_ocsp_resplen
= -1;
359 CRYPTO_add(&ctx
->references
,1,CRYPTO_LOCK_SSL_CTX
);
361 # ifndef OPENSSL_NO_NEXTPROTONEG
362 s
->next_proto_negotiated
= NULL
;
366 s
->verify_result
=X509_V_OK
;
368 s
->method
=ctx
->method
;
370 if (!s
->method
->ssl_new(s
))
374 s
->server
=(ctx
->method
->ssl_accept
== ssl_undefined_function
)?0:1;
378 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
380 #ifndef OPENSSL_NO_PSK
381 s
->psk_client_callback
=ctx
->psk_client_callback
;
382 s
->psk_server_callback
=ctx
->psk_server_callback
;
390 ssl_cert_free(s
->cert
);
392 SSL_CTX_free(s
->ctx
); /* decrement reference count */
395 SSLerr(SSL_F_SSL_NEW
,ERR_R_MALLOC_FAILURE
);
399 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
,const unsigned char *sid_ctx
,
400 unsigned int sid_ctx_len
)
402 if(sid_ctx_len
> sizeof ctx
->sid_ctx
)
404 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
407 ctx
->sid_ctx_length
=sid_ctx_len
;
408 memcpy(ctx
->sid_ctx
,sid_ctx
,sid_ctx_len
);
413 int SSL_set_session_id_context(SSL
*ssl
,const unsigned char *sid_ctx
,
414 unsigned int sid_ctx_len
)
416 if(sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
)
418 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
421 ssl
->sid_ctx_length
=sid_ctx_len
;
422 memcpy(ssl
->sid_ctx
,sid_ctx
,sid_ctx_len
);
427 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
429 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX
);
430 ctx
->generate_session_id
= cb
;
431 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX
);
435 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
437 CRYPTO_w_lock(CRYPTO_LOCK_SSL
);
438 ssl
->generate_session_id
= cb
;
439 CRYPTO_w_unlock(CRYPTO_LOCK_SSL
);
443 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
446 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
447 * we can "construct" a session to give us the desired check - ie. to
448 * find if there's a session in the hash table that would conflict with
449 * any new session built out of this id/id_len and the ssl_version in
450 * use by this SSL. */
453 if(id_len
> sizeof r
.session_id
)
456 r
.ssl_version
= ssl
->version
;
457 r
.session_id_length
= id_len
;
458 memcpy(r
.session_id
, id
, id_len
);
459 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
460 * callback is calling us to check the uniqueness of a shorter ID, it
461 * must be compared as a padded-out ID because that is what it will be
462 * converted to when the callback has finished choosing it. */
463 if((r
.ssl_version
== SSL2_VERSION
) &&
464 (id_len
< SSL2_SSL_SESSION_ID_LENGTH
))
466 memset(r
.session_id
+ id_len
, 0,
467 SSL2_SSL_SESSION_ID_LENGTH
- id_len
);
468 r
.session_id_length
= SSL2_SSL_SESSION_ID_LENGTH
;
471 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX
);
472 p
= lh_SSL_SESSION_retrieve(ssl
->ctx
->sessions
, &r
);
473 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX
);
477 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
479 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
482 int SSL_set_purpose(SSL
*s
, int purpose
)
484 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
487 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
489 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
492 int SSL_set_trust(SSL
*s
, int trust
)
494 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
497 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
499 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
502 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
504 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
507 void SSL_free(SSL
*s
)
514 i
=CRYPTO_add(&s
->references
,-1,CRYPTO_LOCK_SSL
);
522 fprintf(stderr
,"SSL_free, bad reference count\n");
528 X509_VERIFY_PARAM_free(s
->param
);
530 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
534 /* If the buffering BIO is in place, pop it off */
535 if (s
->bbio
== s
->wbio
)
537 s
->wbio
=BIO_pop(s
->wbio
);
543 BIO_free_all(s
->rbio
);
544 if ((s
->wbio
!= NULL
) && (s
->wbio
!= s
->rbio
))
545 BIO_free_all(s
->wbio
);
547 if (s
->init_buf
!= NULL
) BUF_MEM_free(s
->init_buf
);
549 /* add extra stuff */
550 if (s
->cipher_list
!= NULL
) sk_SSL_CIPHER_free(s
->cipher_list
);
551 if (s
->cipher_list_by_id
!= NULL
) sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
553 /* Make the next call work :-) */
554 if (s
->session
!= NULL
)
556 ssl_clear_bad_session(s
);
557 SSL_SESSION_free(s
->session
);
560 ssl_clear_cipher_ctx(s
);
561 ssl_clear_hash_ctx(&s
->read_hash
);
562 ssl_clear_hash_ctx(&s
->write_hash
);
564 if (s
->cert
!= NULL
) ssl_cert_free(s
->cert
);
565 /* Free up if allocated */
567 #ifndef OPENSSL_NO_TLSEXT
568 if (s
->tlsext_hostname
)
569 OPENSSL_free(s
->tlsext_hostname
);
570 if (s
->initial_ctx
) SSL_CTX_free(s
->initial_ctx
);
571 #ifndef OPENSSL_NO_EC
572 if (s
->tlsext_ecpointformatlist
) OPENSSL_free(s
->tlsext_ecpointformatlist
);
573 if (s
->tlsext_ellipticcurvelist
) OPENSSL_free(s
->tlsext_ellipticcurvelist
);
574 #endif /* OPENSSL_NO_EC */
575 if (s
->tlsext_opaque_prf_input
) OPENSSL_free(s
->tlsext_opaque_prf_input
);
576 if (s
->tlsext_ocsp_exts
)
577 sk_X509_EXTENSION_pop_free(s
->tlsext_ocsp_exts
,
578 X509_EXTENSION_free
);
579 if (s
->tlsext_ocsp_ids
)
580 sk_OCSP_RESPID_pop_free(s
->tlsext_ocsp_ids
, OCSP_RESPID_free
);
581 if (s
->tlsext_ocsp_resp
)
582 OPENSSL_free(s
->tlsext_ocsp_resp
);
585 if (s
->client_CA
!= NULL
)
586 sk_X509_NAME_pop_free(s
->client_CA
,X509_NAME_free
);
588 if (s
->method
!= NULL
) s
->method
->ssl_free(s
);
590 if (s
->ctx
) SSL_CTX_free(s
->ctx
);
592 #ifndef OPENSSL_NO_KRB5
593 if (s
->kssl_ctx
!= NULL
)
594 kssl_ctx_free(s
->kssl_ctx
);
595 #endif /* OPENSSL_NO_KRB5 */
597 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
598 if (s
->next_proto_negotiated
)
599 OPENSSL_free(s
->next_proto_negotiated
);
602 if (s
->srtp_profiles
)
603 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
608 void SSL_set_bio(SSL
*s
,BIO
*rbio
,BIO
*wbio
)
610 /* If the output buffering BIO is still in place, remove it
614 if (s
->wbio
== s
->bbio
)
616 s
->wbio
=s
->wbio
->next_bio
;
617 s
->bbio
->next_bio
=NULL
;
620 if ((s
->rbio
!= NULL
) && (s
->rbio
!= rbio
))
621 BIO_free_all(s
->rbio
);
622 if ((s
->wbio
!= NULL
) && (s
->wbio
!= wbio
) && (s
->rbio
!= s
->wbio
))
623 BIO_free_all(s
->wbio
);
628 BIO
*SSL_get_rbio(const SSL
*s
)
631 BIO
*SSL_get_wbio(const SSL
*s
)
634 int SSL_get_fd(const SSL
*s
)
636 return(SSL_get_rfd(s
));
639 int SSL_get_rfd(const SSL
*s
)
645 r
=BIO_find_type(b
,BIO_TYPE_DESCRIPTOR
);
651 int SSL_get_wfd(const SSL
*s
)
657 r
=BIO_find_type(b
,BIO_TYPE_DESCRIPTOR
);
663 #ifndef OPENSSL_NO_SOCK
664 int SSL_set_fd(SSL
*s
,int fd
)
669 bio
=BIO_new(BIO_s_socket());
673 SSLerr(SSL_F_SSL_SET_FD
,ERR_R_BUF_LIB
);
676 BIO_set_fd(bio
,fd
,BIO_NOCLOSE
);
677 SSL_set_bio(s
,bio
,bio
);
683 int SSL_set_wfd(SSL
*s
,int fd
)
688 if ((s
->rbio
== NULL
) || (BIO_method_type(s
->rbio
) != BIO_TYPE_SOCKET
)
689 || ((int)BIO_get_fd(s
->rbio
,NULL
) != fd
))
691 bio
=BIO_new(BIO_s_socket());
694 { SSLerr(SSL_F_SSL_SET_WFD
,ERR_R_BUF_LIB
); goto err
; }
695 BIO_set_fd(bio
,fd
,BIO_NOCLOSE
);
696 SSL_set_bio(s
,SSL_get_rbio(s
),bio
);
699 SSL_set_bio(s
,SSL_get_rbio(s
),SSL_get_rbio(s
));
705 int SSL_set_rfd(SSL
*s
,int fd
)
710 if ((s
->wbio
== NULL
) || (BIO_method_type(s
->wbio
) != BIO_TYPE_SOCKET
)
711 || ((int)BIO_get_fd(s
->wbio
,NULL
) != fd
))
713 bio
=BIO_new(BIO_s_socket());
717 SSLerr(SSL_F_SSL_SET_RFD
,ERR_R_BUF_LIB
);
720 BIO_set_fd(bio
,fd
,BIO_NOCLOSE
);
721 SSL_set_bio(s
,bio
,SSL_get_wbio(s
));
724 SSL_set_bio(s
,SSL_get_wbio(s
),SSL_get_wbio(s
));
732 /* return length of latest Finished message we sent, copy to 'buf' */
733 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
739 ret
= s
->s3
->tmp
.finish_md_len
;
742 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
747 /* return length of latest Finished message we expected, copy to 'buf' */
748 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
754 ret
= s
->s3
->tmp
.peer_finish_md_len
;
757 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
763 int SSL_get_verify_mode(const SSL
*s
)
765 return(s
->verify_mode
);
768 int SSL_get_verify_depth(const SSL
*s
)
770 return X509_VERIFY_PARAM_get_depth(s
->param
);
773 int (*SSL_get_verify_callback(const SSL
*s
))(int,X509_STORE_CTX
*)
775 return(s
->verify_callback
);
778 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
780 return(ctx
->verify_mode
);
783 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
785 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
788 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
))(int,X509_STORE_CTX
*)
790 return(ctx
->default_verify_callback
);
793 void SSL_set_verify(SSL
*s
,int mode
,
794 int (*callback
)(int ok
,X509_STORE_CTX
*ctx
))
797 if (callback
!= NULL
)
798 s
->verify_callback
=callback
;
801 void SSL_set_verify_depth(SSL
*s
,int depth
)
803 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
806 void SSL_set_read_ahead(SSL
*s
,int yes
)
811 int SSL_get_read_ahead(const SSL
*s
)
813 return(s
->read_ahead
);
816 int SSL_pending(const SSL
*s
)
818 /* SSL_pending cannot work properly if read-ahead is enabled
819 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
820 * and it is impossible to fix since SSL_pending cannot report
821 * errors that may be observed while scanning the new data.
822 * (Note that SSL_pending() is often used as a boolean value,
823 * so we'd better not return -1.)
825 return(s
->method
->ssl_pending(s
));
828 X509
*SSL_get_peer_certificate(const SSL
*s
)
832 if ((s
== NULL
) || (s
->session
== NULL
))
837 if (r
== NULL
) return(r
);
839 CRYPTO_add(&r
->references
,1,CRYPTO_LOCK_X509
);
844 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
848 if ((s
== NULL
) || (s
->session
== NULL
) || (s
->session
->sess_cert
== NULL
))
851 r
=s
->session
->sess_cert
->cert_chain
;
853 /* If we are a client, cert_chain includes the peer's own
854 * certificate; if we are a server, it does not. */
859 /* Now in theory, since the calling process own 't' it should be safe to
860 * modify. We need to be able to read f without being hassled */
861 void SSL_copy_session_id(SSL
*t
,const SSL
*f
)
865 /* Do we need to to SSL locking? */
866 SSL_set_session(t
,SSL_get_session(f
));
868 /* what if we are setup as SSLv2 but want to talk SSLv3 or
870 if (t
->method
!= f
->method
)
872 t
->method
->ssl_free(t
); /* cleanup current */
873 t
->method
=f
->method
; /* change method */
874 t
->method
->ssl_new(t
); /* setup new */
880 CRYPTO_add(&f
->cert
->references
,1,CRYPTO_LOCK_SSL_CERT
);
885 if (tmp
!= NULL
) ssl_cert_free(tmp
);
886 SSL_set_session_id_context(t
,f
->sid_ctx
,f
->sid_ctx_length
);
889 /* Fix this so it checks all the valid key/cert options */
890 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
892 if ( (ctx
== NULL
) ||
893 (ctx
->cert
== NULL
) ||
894 (ctx
->cert
->key
->x509
== NULL
))
896 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,SSL_R_NO_CERTIFICATE_ASSIGNED
);
899 if (ctx
->cert
->key
->privatekey
== NULL
)
901 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
904 return(X509_check_private_key(ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
));
907 /* Fix this function so that it takes an optional type parameter */
908 int SSL_check_private_key(const SSL
*ssl
)
912 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,ERR_R_PASSED_NULL_PARAMETER
);
915 if (ssl
->cert
== NULL
)
917 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,SSL_R_NO_CERTIFICATE_ASSIGNED
);
920 if (ssl
->cert
->key
->x509
== NULL
)
922 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,SSL_R_NO_CERTIFICATE_ASSIGNED
);
925 if (ssl
->cert
->key
->privatekey
== NULL
)
927 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
930 return(X509_check_private_key(ssl
->cert
->key
->x509
,
931 ssl
->cert
->key
->privatekey
));
934 int SSL_accept(SSL
*s
)
936 if (s
->handshake_func
== 0)
937 /* Not properly initialized yet */
938 SSL_set_accept_state(s
);
940 return(s
->method
->ssl_accept(s
));
943 int SSL_connect(SSL
*s
)
945 if (s
->handshake_func
== 0)
946 /* Not properly initialized yet */
947 SSL_set_connect_state(s
);
949 return(s
->method
->ssl_connect(s
));
952 long SSL_get_default_timeout(const SSL
*s
)
954 return(s
->method
->get_timeout());
957 int SSL_read(SSL
*s
,void *buf
,int num
)
959 if (s
->handshake_func
== 0)
961 SSLerr(SSL_F_SSL_READ
, SSL_R_UNINITIALIZED
);
965 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
)
967 s
->rwstate
=SSL_NOTHING
;
970 return(s
->method
->ssl_read(s
,buf
,num
));
973 int SSL_peek(SSL
*s
,void *buf
,int num
)
975 if (s
->handshake_func
== 0)
977 SSLerr(SSL_F_SSL_PEEK
, SSL_R_UNINITIALIZED
);
981 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
)
985 return(s
->method
->ssl_peek(s
,buf
,num
));
988 int SSL_write(SSL
*s
,const void *buf
,int num
)
990 if (s
->handshake_func
== 0)
992 SSLerr(SSL_F_SSL_WRITE
, SSL_R_UNINITIALIZED
);
996 if (s
->shutdown
& SSL_SENT_SHUTDOWN
)
998 s
->rwstate
=SSL_NOTHING
;
999 SSLerr(SSL_F_SSL_WRITE
,SSL_R_PROTOCOL_IS_SHUTDOWN
);
1002 return(s
->method
->ssl_write(s
,buf
,num
));
1005 int SSL_shutdown(SSL
*s
)
1007 /* Note that this function behaves differently from what one might
1008 * expect. Return values are 0 for no success (yet),
1009 * 1 for success; but calling it once is usually not enough,
1010 * even if blocking I/O is used (see ssl3_shutdown).
1013 if (s
->handshake_func
== 0)
1015 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
1019 if ((s
!= NULL
) && !SSL_in_init(s
))
1020 return(s
->method
->ssl_shutdown(s
));
1025 int SSL_renegotiate(SSL
*s
)
1027 if (s
->renegotiate
== 0)
1032 return(s
->method
->ssl_renegotiate(s
));
1035 int SSL_renegotiate_abbreviated(SSL
*s
)
1037 if (s
->renegotiate
== 0)
1042 return(s
->method
->ssl_renegotiate(s
));
1045 int SSL_renegotiate_pending(SSL
*s
)
1047 /* becomes true when negotiation is requested;
1048 * false again once a handshake has finished */
1049 return (s
->renegotiate
!= 0);
1052 long SSL_ctrl(SSL
*s
,int cmd
,long larg
,void *parg
)
1058 case SSL_CTRL_GET_READ_AHEAD
:
1059 return(s
->read_ahead
);
1060 case SSL_CTRL_SET_READ_AHEAD
:
1065 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1066 s
->msg_callback_arg
= parg
;
1069 case SSL_CTRL_OPTIONS
:
1070 return(s
->options
|=larg
);
1071 case SSL_CTRL_CLEAR_OPTIONS
:
1072 return(s
->options
&=~larg
);
1074 return(s
->mode
|=larg
);
1075 case SSL_CTRL_CLEAR_MODE
:
1076 return(s
->mode
&=~larg
);
1077 case SSL_CTRL_GET_MAX_CERT_LIST
:
1078 return(s
->max_cert_list
);
1079 case SSL_CTRL_SET_MAX_CERT_LIST
:
1081 s
->max_cert_list
=larg
;
1083 case SSL_CTRL_SET_MTU
:
1084 #ifndef OPENSSL_NO_DTLS1
1085 if (larg
< (long)dtls1_min_mtu())
1089 if (SSL_version(s
) == DTLS1_VERSION
||
1090 SSL_version(s
) == DTLS1_BAD_VER
)
1096 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
1097 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
1099 s
->max_send_fragment
= larg
;
1101 case SSL_CTRL_GET_RI_SUPPORT
:
1103 return s
->s3
->send_connection_binding
;
1106 return(s
->method
->ssl_ctrl(s
,cmd
,larg
,parg
));
1110 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
)(void))
1114 case SSL_CTRL_SET_MSG_CALLBACK
:
1115 s
->msg_callback
= (void (*)(int write_p
, int version
, int content_type
, const void *buf
, size_t len
, SSL
*ssl
, void *arg
))(fp
);
1119 return(s
->method
->ssl_callback_ctrl(s
,cmd
,fp
));
1123 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
1125 return ctx
->sessions
;
1128 long SSL_CTX_ctrl(SSL_CTX
*ctx
,int cmd
,long larg
,void *parg
)
1134 case SSL_CTRL_GET_READ_AHEAD
:
1135 return(ctx
->read_ahead
);
1136 case SSL_CTRL_SET_READ_AHEAD
:
1138 ctx
->read_ahead
=larg
;
1141 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1142 ctx
->msg_callback_arg
= parg
;
1145 case SSL_CTRL_GET_MAX_CERT_LIST
:
1146 return(ctx
->max_cert_list
);
1147 case SSL_CTRL_SET_MAX_CERT_LIST
:
1148 l
=ctx
->max_cert_list
;
1149 ctx
->max_cert_list
=larg
;
1152 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
1153 l
=ctx
->session_cache_size
;
1154 ctx
->session_cache_size
=larg
;
1156 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
1157 return(ctx
->session_cache_size
);
1158 case SSL_CTRL_SET_SESS_CACHE_MODE
:
1159 l
=ctx
->session_cache_mode
;
1160 ctx
->session_cache_mode
=larg
;
1162 case SSL_CTRL_GET_SESS_CACHE_MODE
:
1163 return(ctx
->session_cache_mode
);
1165 case SSL_CTRL_SESS_NUMBER
:
1166 return(lh_SSL_SESSION_num_items(ctx
->sessions
));
1167 case SSL_CTRL_SESS_CONNECT
:
1168 return(ctx
->stats
.sess_connect
);
1169 case SSL_CTRL_SESS_CONNECT_GOOD
:
1170 return(ctx
->stats
.sess_connect_good
);
1171 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
1172 return(ctx
->stats
.sess_connect_renegotiate
);
1173 case SSL_CTRL_SESS_ACCEPT
:
1174 return(ctx
->stats
.sess_accept
);
1175 case SSL_CTRL_SESS_ACCEPT_GOOD
:
1176 return(ctx
->stats
.sess_accept_good
);
1177 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
1178 return(ctx
->stats
.sess_accept_renegotiate
);
1179 case SSL_CTRL_SESS_HIT
:
1180 return(ctx
->stats
.sess_hit
);
1181 case SSL_CTRL_SESS_CB_HIT
:
1182 return(ctx
->stats
.sess_cb_hit
);
1183 case SSL_CTRL_SESS_MISSES
:
1184 return(ctx
->stats
.sess_miss
);
1185 case SSL_CTRL_SESS_TIMEOUTS
:
1186 return(ctx
->stats
.sess_timeout
);
1187 case SSL_CTRL_SESS_CACHE_FULL
:
1188 return(ctx
->stats
.sess_cache_full
);
1189 case SSL_CTRL_OPTIONS
:
1190 return(ctx
->options
|=larg
);
1191 case SSL_CTRL_CLEAR_OPTIONS
:
1192 return(ctx
->options
&=~larg
);
1194 return(ctx
->mode
|=larg
);
1195 case SSL_CTRL_CLEAR_MODE
:
1196 return(ctx
->mode
&=~larg
);
1197 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
1198 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
1200 ctx
->max_send_fragment
= larg
;
1203 return(ctx
->method
->ssl_ctx_ctrl(ctx
,cmd
,larg
,parg
));
1207 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
)(void))
1211 case SSL_CTRL_SET_MSG_CALLBACK
:
1212 ctx
->msg_callback
= (void (*)(int write_p
, int version
, int content_type
, const void *buf
, size_t len
, SSL
*ssl
, void *arg
))(fp
);
1216 return(ctx
->method
->ssl_ctx_callback_ctrl(ctx
,cmd
,fp
));
1220 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
1228 return((l
> 0)?1:-1);
1231 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
* const *ap
,
1232 const SSL_CIPHER
* const *bp
)
1236 l
=(*ap
)->id
-(*bp
)->id
;
1240 return((l
> 0)?1:-1);
1243 /** return a STACK of the ciphers available for the SSL and in order of
1245 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
1249 if (s
->cipher_list
!= NULL
)
1251 return(s
->cipher_list
);
1253 else if ((s
->ctx
!= NULL
) &&
1254 (s
->ctx
->cipher_list
!= NULL
))
1256 return(s
->ctx
->cipher_list
);
1262 /** return a STACK of the ciphers available for the SSL and in order of
1264 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
1268 if (s
->cipher_list_by_id
!= NULL
)
1270 return(s
->cipher_list_by_id
);
1272 else if ((s
->ctx
!= NULL
) &&
1273 (s
->ctx
->cipher_list_by_id
!= NULL
))
1275 return(s
->ctx
->cipher_list_by_id
);
1281 /** The old interface to get the same thing as SSL_get_ciphers() */
1282 const char *SSL_get_cipher_list(const SSL
*s
,int n
)
1285 STACK_OF(SSL_CIPHER
) *sk
;
1287 if (s
== NULL
) return(NULL
);
1288 sk
=SSL_get_ciphers(s
);
1289 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
1291 c
=sk_SSL_CIPHER_value(sk
,n
);
1292 if (c
== NULL
) return(NULL
);
1296 /** specify the ciphers to be used by default by the SSL_CTX */
1297 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
1299 STACK_OF(SSL_CIPHER
) *sk
;
1301 sk
=ssl_create_cipher_list(ctx
->method
,&ctx
->cipher_list
,
1302 &ctx
->cipher_list_by_id
,str
);
1303 /* ssl_create_cipher_list may return an empty stack if it
1304 * was unable to find a cipher matching the given rule string
1305 * (for example if the rule string specifies a cipher which
1306 * has been disabled). This is not an error as far as
1307 * ssl_create_cipher_list is concerned, and hence
1308 * ctx->cipher_list and ctx->cipher_list_by_id has been
1312 else if (sk_SSL_CIPHER_num(sk
) == 0)
1314 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
1320 /** specify the ciphers to be used by the SSL */
1321 int SSL_set_cipher_list(SSL
*s
,const char *str
)
1323 STACK_OF(SSL_CIPHER
) *sk
;
1325 sk
=ssl_create_cipher_list(s
->ctx
->method
,&s
->cipher_list
,
1326 &s
->cipher_list_by_id
,str
);
1327 /* see comment in SSL_CTX_set_cipher_list */
1330 else if (sk_SSL_CIPHER_num(sk
) == 0)
1332 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
1338 /* works well for SSLv2, not so good for SSLv3 */
1339 char *SSL_get_shared_ciphers(const SSL
*s
,char *buf
,int len
)
1342 STACK_OF(SSL_CIPHER
) *sk
;
1346 if ((s
->session
== NULL
) || (s
->session
->ciphers
== NULL
) ||
1351 sk
=s
->session
->ciphers
;
1352 for (i
=0; i
<sk_SSL_CIPHER_num(sk
); i
++)
1356 c
=sk_SSL_CIPHER_value(sk
,i
);
1374 int ssl_cipher_list_to_bytes(SSL
*s
,STACK_OF(SSL_CIPHER
) *sk
,unsigned char *p
,
1375 int (*put_cb
)(const SSL_CIPHER
*, unsigned char *))
1380 #ifndef OPENSSL_NO_KRB5
1381 int nokrb5
= !kssl_tgt_is_available(s
->kssl_ctx
);
1382 #endif /* OPENSSL_NO_KRB5 */
1384 if (sk
== NULL
) return(0);
1387 for (i
=0; i
<sk_SSL_CIPHER_num(sk
); i
++)
1389 c
=sk_SSL_CIPHER_value(sk
,i
);
1390 /* Skip TLS v1.2 only ciphersuites if lower than v1.2 */
1391 if ((c
->algorithm_ssl
& SSL_TLSV1_2
) &&
1392 (TLS1_get_client_version(s
) < TLS1_2_VERSION
))
1394 #ifndef OPENSSL_NO_KRB5
1395 if (((c
->algorithm_mkey
& SSL_kKRB5
) || (c
->algorithm_auth
& SSL_aKRB5
)) &&
1398 #endif /* OPENSSL_NO_KRB5 */
1399 #ifndef OPENSSL_NO_PSK
1400 /* with PSK there must be client callback set */
1401 if (((c
->algorithm_mkey
& SSL_kPSK
) || (c
->algorithm_auth
& SSL_aPSK
)) &&
1402 s
->psk_client_callback
== NULL
)
1404 #endif /* OPENSSL_NO_PSK */
1405 j
= put_cb
? put_cb(c
,p
) : ssl_put_cipher_by_char(s
,c
,p
);
1408 /* If p == q, no ciphers and caller indicates an error. Otherwise
1409 * add SCSV if not renegotiating.
1411 if (p
!= q
&& !s
->renegotiate
)
1413 static SSL_CIPHER scsv
=
1415 0, NULL
, SSL3_CK_SCSV
, 0, 0, 0, 0, 0, 0, 0, 0, 0
1417 j
= put_cb
? put_cb(&scsv
,p
) : ssl_put_cipher_by_char(s
,&scsv
,p
);
1419 #ifdef OPENSSL_RI_DEBUG
1420 fprintf(stderr
, "SCSV sent by client\n");
1427 STACK_OF(SSL_CIPHER
) *ssl_bytes_to_cipher_list(SSL
*s
,unsigned char *p
,int num
,
1428 STACK_OF(SSL_CIPHER
) **skp
)
1430 const SSL_CIPHER
*c
;
1431 STACK_OF(SSL_CIPHER
) *sk
;
1434 s
->s3
->send_connection_binding
= 0;
1436 n
=ssl_put_cipher_by_char(s
,NULL
,NULL
);
1439 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
1442 if ((skp
== NULL
) || (*skp
== NULL
))
1443 sk
=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1447 sk_SSL_CIPHER_zero(sk
);
1450 for (i
=0; i
<num
; i
+=n
)
1452 /* Check for SCSV */
1453 if (s
->s3
&& (n
!= 3 || !p
[0]) &&
1454 (p
[n
-2] == ((SSL3_CK_SCSV
>> 8) & 0xff)) &&
1455 (p
[n
-1] == (SSL3_CK_SCSV
& 0xff)))
1457 /* SCSV fatal if renegotiating */
1460 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING
);
1461 ssl3_send_alert(s
,SSL3_AL_FATAL
,SSL_AD_HANDSHAKE_FAILURE
);
1464 s
->s3
->send_connection_binding
= 1;
1466 #ifdef OPENSSL_RI_DEBUG
1467 fprintf(stderr
, "SCSV received by server\n");
1472 c
=ssl_get_cipher_by_char(s
,p
);
1476 if (!sk_SSL_CIPHER_push(sk
,c
))
1478 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,ERR_R_MALLOC_FAILURE
);
1488 if ((skp
== NULL
) || (*skp
== NULL
))
1489 sk_SSL_CIPHER_free(sk
);
1494 #ifndef OPENSSL_NO_TLSEXT
1495 /** return a servername extension value if provided in Client Hello, or NULL.
1496 * So far, only host_name types are defined (RFC 3546).
1499 const char *SSL_get_servername(const SSL
*s
, const int type
)
1501 if (type
!= TLSEXT_NAMETYPE_host_name
)
1504 return s
->session
&& !s
->tlsext_hostname
?
1505 s
->session
->tlsext_hostname
:
1509 int SSL_get_servername_type(const SSL
*s
)
1511 if (s
->session
&& (!s
->tlsext_hostname
? s
->session
->tlsext_hostname
: s
->tlsext_hostname
))
1512 return TLSEXT_NAMETYPE_host_name
;
1516 # ifndef OPENSSL_NO_NEXTPROTONEG
1517 /* SSL_select_next_proto implements the standard protocol selection. It is
1518 * expected that this function is called from the callback set by
1519 * SSL_CTX_set_next_proto_select_cb.
1521 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte
1522 * strings. The length byte itself is not included in the length. A byte
1523 * string of length 0 is invalid. No byte string may be truncated.
1525 * The current, but experimental algorithm for selecting the protocol is:
1527 * 1) If the server doesn't support NPN then this is indicated to the
1528 * callback. In this case, the client application has to abort the connection
1529 * or have a default application level protocol.
1531 * 2) If the server supports NPN, but advertises an empty list then the
1532 * client selects the first protcol in its list, but indicates via the
1533 * API that this fallback case was enacted.
1535 * 3) Otherwise, the client finds the first protocol in the server's list
1536 * that it supports and selects this protocol. This is because it's
1537 * assumed that the server has better information about which protocol
1538 * a client should use.
1540 * 4) If the client doesn't support any of the server's advertised
1541 * protocols, then this is treated the same as case 2.
1544 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or
1545 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1547 int SSL_select_next_proto(unsigned char **out
, unsigned char *outlen
, const unsigned char *server
, unsigned int server_len
, const unsigned char *client
, unsigned int client_len
)
1550 const unsigned char *result
;
1551 int status
= OPENSSL_NPN_UNSUPPORTED
;
1553 /* For each protocol in server preference order, see if we support it. */
1554 for (i
= 0; i
< server_len
; )
1556 for (j
= 0; j
< client_len
; )
1558 if (server
[i
] == client
[j
] &&
1559 memcmp(&server
[i
+1], &client
[j
+1], server
[i
]) == 0)
1561 /* We found a match */
1562 result
= &server
[i
];
1563 status
= OPENSSL_NPN_NEGOTIATED
;
1573 /* There's no overlap between our protocols and the server's list. */
1575 status
= OPENSSL_NPN_NO_OVERLAP
;
1578 *out
= (unsigned char *) result
+ 1;
1579 *outlen
= result
[0];
1583 /* SSL_get0_next_proto_negotiated sets *data and *len to point to the client's
1584 * requested protocol for this connection and returns 0. If the client didn't
1585 * request any protocol, then *data is set to NULL.
1587 * Note that the client can request any protocol it chooses. The value returned
1588 * from this function need not be a member of the list of supported protocols
1589 * provided by the callback.
1591 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
, unsigned *len
)
1593 *data
= s
->next_proto_negotiated
;
1597 *len
= s
->next_proto_negotiated_len
;
1601 /* SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when a
1602 * TLS server needs a list of supported protocols for Next Protocol
1603 * Negotiation. The returned list must be in wire format. The list is returned
1604 * by setting |out| to point to it and |outlen| to its length. This memory will
1605 * not be modified, but one should assume that the SSL* keeps a reference to
1608 * The callback should return SSL_TLSEXT_ERR_OK if it wishes to advertise. Otherwise, no
1609 * such extension will be included in the ServerHello. */
1610 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX
*ctx
, int (*cb
) (SSL
*ssl
, const unsigned char **out
, unsigned int *outlen
, void *arg
), void *arg
)
1612 ctx
->next_protos_advertised_cb
= cb
;
1613 ctx
->next_protos_advertised_cb_arg
= arg
;
1616 /* SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1617 * client needs to select a protocol from the server's provided list. |out|
1618 * must be set to point to the selected protocol (which may be within |in|).
1619 * The length of the protocol name must be written into |outlen|. The server's
1620 * advertised protocols are provided in |in| and |inlen|. The callback can
1621 * assume that |in| is syntactically valid.
1623 * The client must select a protocol. It is fatal to the connection if this
1624 * callback returns a value other than SSL_TLSEXT_ERR_OK.
1626 void SSL_CTX_set_next_proto_select_cb(SSL_CTX
*ctx
, int (*cb
) (SSL
*s
, unsigned char **out
, unsigned char *outlen
, const unsigned char *in
, unsigned int inlen
, void *arg
), void *arg
)
1628 ctx
->next_proto_select_cb
= cb
;
1629 ctx
->next_proto_select_cb_arg
= arg
;
1635 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, int olen
,
1636 char *label
, int llen
, unsigned char *p
, int plen
, int use_context
)
1638 if (s
->version
< TLS1_VERSION
)
1641 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
1646 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
1651 ((unsigned int) a
->session_id
[0] )|
1652 ((unsigned int) a
->session_id
[1]<< 8L)|
1653 ((unsigned long)a
->session_id
[2]<<16L)|
1654 ((unsigned long)a
->session_id
[3]<<24L);
1658 /* NB: If this function (or indeed the hash function which uses a sort of
1659 * coarser function than this one) is changed, ensure
1660 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1661 * able to construct an SSL_SESSION that will collide with any existing session
1662 * with a matching session ID. */
1663 static int ssl_session_cmp(const SSL_SESSION
*a
,const SSL_SESSION
*b
)
1665 if (a
->ssl_version
!= b
->ssl_version
)
1667 if (a
->session_id_length
!= b
->session_id_length
)
1669 return(memcmp(a
->session_id
,b
->session_id
,a
->session_id_length
));
1672 /* These wrapper functions should remain rather than redeclaring
1673 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1674 * variable. The reason is that the functions aren't static, they're exposed via
1676 static IMPLEMENT_LHASH_HASH_FN(ssl_session
, SSL_SESSION
)
1677 static IMPLEMENT_LHASH_COMP_FN(ssl_session
, SSL_SESSION
)
1679 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
1685 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_NULL_SSL_METHOD_PASSED
);
1690 if (FIPS_mode() && (meth
->version
< TLS1_VERSION
))
1692 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE
);
1697 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1699 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
1702 ret
=(SSL_CTX
*)OPENSSL_malloc(sizeof(SSL_CTX
));
1706 memset(ret
,0,sizeof(SSL_CTX
));
1710 ret
->cert_store
=NULL
;
1711 ret
->session_cache_mode
=SSL_SESS_CACHE_SERVER
;
1712 ret
->session_cache_size
=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
1713 ret
->session_cache_head
=NULL
;
1714 ret
->session_cache_tail
=NULL
;
1716 /* We take the system default */
1717 ret
->session_timeout
=meth
->get_timeout();
1719 ret
->new_session_cb
=0;
1720 ret
->remove_session_cb
=0;
1721 ret
->get_session_cb
=0;
1722 ret
->generate_session_id
=0;
1724 memset((char *)&ret
->stats
,0,sizeof(ret
->stats
));
1727 ret
->quiet_shutdown
=0;
1729 /* ret->cipher=NULL;*/
1730 /* ret->s2->challenge=NULL;
1731 ret->master_key=NULL;
1733 ret->s2->conn_id=NULL; */
1735 ret
->info_callback
=NULL
;
1737 ret
->app_verify_callback
=0;
1738 ret
->app_verify_arg
=NULL
;
1740 ret
->max_cert_list
=SSL_MAX_CERT_LIST_DEFAULT
;
1742 ret
->msg_callback
=0;
1743 ret
->msg_callback_arg
=NULL
;
1744 ret
->verify_mode
=SSL_VERIFY_NONE
;
1746 ret
->verify_depth
=-1; /* Don't impose a limit (but x509_lu.c does) */
1748 ret
->sid_ctx_length
=0;
1749 ret
->default_verify_callback
=NULL
;
1750 if ((ret
->cert
=ssl_cert_new()) == NULL
)
1753 ret
->default_passwd_callback
=0;
1754 ret
->default_passwd_callback_userdata
=NULL
;
1755 ret
->client_cert_cb
=0;
1756 ret
->app_gen_cookie_cb
=0;
1757 ret
->app_verify_cookie_cb
=0;
1759 ret
->sessions
=lh_SSL_SESSION_new();
1760 if (ret
->sessions
== NULL
) goto err
;
1761 ret
->cert_store
=X509_STORE_new();
1762 if (ret
->cert_store
== NULL
) goto err
;
1764 ssl_create_cipher_list(ret
->method
,
1765 &ret
->cipher_list
,&ret
->cipher_list_by_id
,
1766 meth
->version
== SSL2_VERSION
? "SSLv2" : SSL_DEFAULT_CIPHER_LIST
);
1767 if (ret
->cipher_list
== NULL
1768 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0)
1770 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_LIBRARY_HAS_NO_CIPHERS
);
1774 ret
->param
= X509_VERIFY_PARAM_new();
1778 if ((ret
->rsa_md5
=EVP_get_digestbyname("ssl2-md5")) == NULL
)
1780 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES
);
1783 if ((ret
->md5
=EVP_get_digestbyname("ssl3-md5")) == NULL
)
1785 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
1788 if ((ret
->sha1
=EVP_get_digestbyname("ssl3-sha1")) == NULL
)
1790 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
1794 if ((ret
->client_CA
=sk_X509_NAME_new_null()) == NULL
)
1797 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
);
1799 ret
->extra_certs
=NULL
;
1800 ret
->comp_methods
=SSL_COMP_get_compression_methods();
1802 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
1804 #ifndef OPENSSL_NO_TLSEXT
1805 ret
->tlsext_servername_callback
= 0;
1806 ret
->tlsext_servername_arg
= NULL
;
1807 /* Setup RFC4507 ticket keys */
1808 if ((RAND_pseudo_bytes(ret
->tlsext_tick_key_name
, 16) <= 0)
1809 || (RAND_bytes(ret
->tlsext_tick_hmac_key
, 16) <= 0)
1810 || (RAND_bytes(ret
->tlsext_tick_aes_key
, 16) <= 0))
1811 ret
->options
|= SSL_OP_NO_TICKET
;
1813 ret
->tlsext_status_cb
= 0;
1814 ret
->tlsext_status_arg
= NULL
;
1816 # ifndef OPENSSL_NO_NEXTPROTONEG
1817 ret
->next_protos_advertised_cb
= 0;
1818 ret
->next_proto_select_cb
= 0;
1821 #ifndef OPENSSL_NO_PSK
1822 ret
->psk_identity_hint
=NULL
;
1823 ret
->psk_client_callback
=NULL
;
1824 ret
->psk_server_callback
=NULL
;
1826 #ifndef OPENSSL_NO_SRP
1827 SSL_CTX_SRP_CTX_init(ret
);
1829 #ifndef OPENSSL_NO_BUF_FREELISTS
1830 ret
->freelist_max_len
= SSL_MAX_BUF_FREELIST_LEN_DEFAULT
;
1831 ret
->rbuf_freelist
= OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST
));
1832 if (!ret
->rbuf_freelist
)
1834 ret
->rbuf_freelist
->chunklen
= 0;
1835 ret
->rbuf_freelist
->len
= 0;
1836 ret
->rbuf_freelist
->head
= NULL
;
1837 ret
->wbuf_freelist
= OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST
));
1838 if (!ret
->wbuf_freelist
)
1840 OPENSSL_free(ret
->rbuf_freelist
);
1843 ret
->wbuf_freelist
->chunklen
= 0;
1844 ret
->wbuf_freelist
->len
= 0;
1845 ret
->wbuf_freelist
->head
= NULL
;
1847 #ifndef OPENSSL_NO_ENGINE
1848 ret
->client_cert_engine
= NULL
;
1849 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1850 #define eng_strx(x) #x
1851 #define eng_str(x) eng_strx(x)
1852 /* Use specific client engine automatically... ignore errors */
1855 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
1859 ENGINE_load_builtin_engines();
1860 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
1862 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
1867 /* Default is to connect to non-RI servers. When RI is more widely
1868 * deployed might change this.
1870 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
1874 SSLerr(SSL_F_SSL_CTX_NEW
,ERR_R_MALLOC_FAILURE
);
1876 if (ret
!= NULL
) SSL_CTX_free(ret
);
1881 static void SSL_COMP_free(SSL_COMP
*comp
)
1882 { OPENSSL_free(comp
); }
1885 #ifndef OPENSSL_NO_BUF_FREELISTS
1887 ssl_buf_freelist_free(SSL3_BUF_FREELIST
*list
)
1889 SSL3_BUF_FREELIST_ENTRY
*ent
, *next
;
1890 for (ent
= list
->head
; ent
; ent
= next
)
1899 void SSL_CTX_free(SSL_CTX
*a
)
1903 if (a
== NULL
) return;
1905 i
=CRYPTO_add(&a
->references
,-1,CRYPTO_LOCK_SSL_CTX
);
1907 REF_PRINT("SSL_CTX",a
);
1913 fprintf(stderr
,"SSL_CTX_free, bad reference count\n");
1919 X509_VERIFY_PARAM_free(a
->param
);
1922 * Free internal session cache. However: the remove_cb() may reference
1923 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1924 * after the sessions were flushed.
1925 * As the ex_data handling routines might also touch the session cache,
1926 * the most secure solution seems to be: empty (flush) the cache, then
1927 * free ex_data, then finally free the cache.
1928 * (See ticket [openssl.org #212].)
1930 if (a
->sessions
!= NULL
)
1931 SSL_CTX_flush_sessions(a
,0);
1933 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
1935 if (a
->sessions
!= NULL
)
1936 lh_SSL_SESSION_free(a
->sessions
);
1938 if (a
->cert_store
!= NULL
)
1939 X509_STORE_free(a
->cert_store
);
1940 if (a
->cipher_list
!= NULL
)
1941 sk_SSL_CIPHER_free(a
->cipher_list
);
1942 if (a
->cipher_list_by_id
!= NULL
)
1943 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
1944 if (a
->cert
!= NULL
)
1945 ssl_cert_free(a
->cert
);
1946 if (a
->client_CA
!= NULL
)
1947 sk_X509_NAME_pop_free(a
->client_CA
,X509_NAME_free
);
1948 if (a
->extra_certs
!= NULL
)
1949 sk_X509_pop_free(a
->extra_certs
,X509_free
);
1950 #if 0 /* This should never be done, since it removes a global database */
1951 if (a
->comp_methods
!= NULL
)
1952 sk_SSL_COMP_pop_free(a
->comp_methods
,SSL_COMP_free
);
1954 a
->comp_methods
= NULL
;
1957 if (a
->srtp_profiles
)
1958 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
1960 #ifndef OPENSSL_NO_PSK
1961 if (a
->psk_identity_hint
)
1962 OPENSSL_free(a
->psk_identity_hint
);
1964 #ifndef OPENSSL_NO_SRP
1965 SSL_CTX_SRP_CTX_free(a
);
1967 #ifndef OPENSSL_NO_ENGINE
1968 if (a
->client_cert_engine
)
1969 ENGINE_finish(a
->client_cert_engine
);
1972 #ifndef OPENSSL_NO_BUF_FREELISTS
1973 if (a
->wbuf_freelist
)
1974 ssl_buf_freelist_free(a
->wbuf_freelist
);
1975 if (a
->rbuf_freelist
)
1976 ssl_buf_freelist_free(a
->rbuf_freelist
);
1982 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
1984 ctx
->default_passwd_callback
=cb
;
1987 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
,void *u
)
1989 ctx
->default_passwd_callback_userdata
=u
;
1992 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
, int (*cb
)(X509_STORE_CTX
*,void *), void *arg
)
1994 ctx
->app_verify_callback
=cb
;
1995 ctx
->app_verify_arg
=arg
;
1998 void SSL_CTX_set_verify(SSL_CTX
*ctx
,int mode
,int (*cb
)(int, X509_STORE_CTX
*))
2000 ctx
->verify_mode
=mode
;
2001 ctx
->default_verify_callback
=cb
;
2004 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
,int depth
)
2006 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
2009 void ssl_set_cert_masks(CERT
*c
, const SSL_CIPHER
*cipher
)
2012 int rsa_enc
,rsa_tmp
,rsa_sign
,dh_tmp
,dh_rsa
,dh_dsa
,dsa_sign
;
2013 int rsa_enc_export
,dh_rsa_export
,dh_dsa_export
;
2014 int rsa_tmp_export
,dh_tmp_export
,kl
;
2015 unsigned long mask_k
,mask_a
,emask_k
,emask_a
;
2016 int have_ecc_cert
, ecdh_ok
, ecdsa_ok
, ecc_pkey_size
;
2017 #ifndef OPENSSL_NO_ECDH
2021 EVP_PKEY
*ecc_pkey
= NULL
;
2022 int signature_nid
= 0, pk_nid
= 0, md_nid
= 0;
2024 if (c
== NULL
) return;
2026 kl
=SSL_C_EXPORT_PKEYLENGTH(cipher
);
2028 #ifndef OPENSSL_NO_RSA
2029 rsa_tmp
=(c
->rsa_tmp
!= NULL
|| c
->rsa_tmp_cb
!= NULL
);
2030 rsa_tmp_export
=(c
->rsa_tmp_cb
!= NULL
||
2031 (rsa_tmp
&& RSA_size(c
->rsa_tmp
)*8 <= kl
));
2033 rsa_tmp
=rsa_tmp_export
=0;
2035 #ifndef OPENSSL_NO_DH
2036 dh_tmp
=(c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
);
2037 dh_tmp_export
=(c
->dh_tmp_cb
!= NULL
||
2038 (dh_tmp
&& DH_size(c
->dh_tmp
)*8 <= kl
));
2040 dh_tmp
=dh_tmp_export
=0;
2043 #ifndef OPENSSL_NO_ECDH
2044 have_ecdh_tmp
=(c
->ecdh_tmp
!= NULL
|| c
->ecdh_tmp_cb
!= NULL
);
2046 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_ENC
]);
2047 rsa_enc
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
2048 rsa_enc_export
=(rsa_enc
&& EVP_PKEY_size(cpk
->privatekey
)*8 <= kl
);
2049 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_SIGN
]);
2050 rsa_sign
=(cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
2051 cpk
= &(c
->pkeys
[SSL_PKEY_DSA_SIGN
]);
2052 dsa_sign
=(cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
2053 cpk
= &(c
->pkeys
[SSL_PKEY_DH_RSA
]);
2054 dh_rsa
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
2055 dh_rsa_export
=(dh_rsa
&& EVP_PKEY_size(cpk
->privatekey
)*8 <= kl
);
2056 cpk
= &(c
->pkeys
[SSL_PKEY_DH_DSA
]);
2057 /* FIX THIS EAY EAY EAY */
2058 dh_dsa
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
2059 dh_dsa_export
=(dh_dsa
&& EVP_PKEY_size(cpk
->privatekey
)*8 <= kl
);
2060 cpk
= &(c
->pkeys
[SSL_PKEY_ECC
]);
2061 have_ecc_cert
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
2070 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2071 rsa_tmp
,rsa_tmp_export
,dh_tmp
,have_ecdh_tmp
,
2072 rsa_enc
,rsa_enc_export
,rsa_sign
,dsa_sign
,dh_rsa
,dh_dsa
);
2075 cpk
= &(c
->pkeys
[SSL_PKEY_GOST01
]);
2076 if (cpk
->x509
!= NULL
&& cpk
->privatekey
!=NULL
) {
2077 mask_k
|= SSL_kGOST
;
2078 mask_a
|= SSL_aGOST01
;
2080 cpk
= &(c
->pkeys
[SSL_PKEY_GOST94
]);
2081 if (cpk
->x509
!= NULL
&& cpk
->privatekey
!=NULL
) {
2082 mask_k
|= SSL_kGOST
;
2083 mask_a
|= SSL_aGOST94
;
2086 if (rsa_enc
|| (rsa_tmp
&& rsa_sign
))
2088 if (rsa_enc_export
|| (rsa_tmp_export
&& (rsa_sign
|| rsa_enc
)))
2092 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
2093 if ( (dh_tmp
|| dh_rsa
|| dh_dsa
) &&
2094 (rsa_enc
|| rsa_sign
|| dsa_sign
))
2096 if ((dh_tmp_export
|| dh_rsa_export
|| dh_dsa_export
) &&
2097 (rsa_enc
|| rsa_sign
|| dsa_sign
))
2107 if (dh_rsa
) mask_k
|=SSL_kDHr
;
2108 if (dh_rsa_export
) emask_k
|=SSL_kDHr
;
2110 if (dh_dsa
) mask_k
|=SSL_kDHd
;
2111 if (dh_dsa_export
) emask_k
|=SSL_kDHd
;
2113 if (emask_k
& (SSL_kDHr
|SSL_kDHd
))
2116 if (rsa_enc
|| rsa_sign
)
2131 #ifndef OPENSSL_NO_KRB5
2138 /* An ECC certificate may be usable for ECDH and/or
2139 * ECDSA cipher suites depending on the key usage extension.
2143 /* This call populates extension flags (ex_flags) */
2144 x
= (c
->pkeys
[SSL_PKEY_ECC
]).x509
;
2145 X509_check_purpose(x
, -1, 0);
2146 ecdh_ok
= (x
->ex_flags
& EXFLAG_KUSAGE
) ?
2147 (x
->ex_kusage
& X509v3_KU_KEY_AGREEMENT
) : 1;
2148 ecdsa_ok
= (x
->ex_flags
& EXFLAG_KUSAGE
) ?
2149 (x
->ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
) : 1;
2150 ecc_pkey
= X509_get_pubkey(x
);
2151 ecc_pkey_size
= (ecc_pkey
!= NULL
) ?
2152 EVP_PKEY_bits(ecc_pkey
) : 0;
2153 EVP_PKEY_free(ecc_pkey
);
2154 if ((x
->sig_alg
) && (x
->sig_alg
->algorithm
))
2156 signature_nid
= OBJ_obj2nid(x
->sig_alg
->algorithm
);
2157 OBJ_find_sigid_algs(signature_nid
, &md_nid
, &pk_nid
);
2159 #ifndef OPENSSL_NO_ECDH
2163 if (pk_nid
== NID_rsaEncryption
|| pk_nid
== NID_rsa
)
2167 if (ecc_pkey_size
<= 163)
2169 emask_k
|=SSL_kECDHr
;
2174 if (pk_nid
== NID_X9_62_id_ecPublicKey
)
2178 if (ecc_pkey_size
<= 163)
2180 emask_k
|=SSL_kECDHe
;
2186 #ifndef OPENSSL_NO_ECDSA
2190 emask_a
|=SSL_aECDSA
;
2195 #ifndef OPENSSL_NO_ECDH
2199 emask_k
|=SSL_kEECDH
;
2203 #ifndef OPENSSL_NO_PSK
2206 emask_k
|= SSL_kPSK
;
2207 emask_a
|= SSL_aPSK
;
2212 c
->export_mask_k
=emask_k
;
2213 c
->export_mask_a
=emask_a
;
2217 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2218 #define ku_reject(x, usage) \
2219 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2221 #ifndef OPENSSL_NO_EC
2223 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
2225 unsigned long alg_k
, alg_a
;
2226 EVP_PKEY
*pkey
= NULL
;
2228 int signature_nid
= 0, md_nid
= 0, pk_nid
= 0;
2229 const SSL_CIPHER
*cs
= s
->s3
->tmp
.new_cipher
;
2231 alg_k
= cs
->algorithm_mkey
;
2232 alg_a
= cs
->algorithm_auth
;
2234 if (SSL_C_IS_EXPORT(cs
))
2236 /* ECDH key length in export ciphers must be <= 163 bits */
2237 pkey
= X509_get_pubkey(x
);
2238 if (pkey
== NULL
) return 0;
2239 keysize
= EVP_PKEY_bits(pkey
);
2240 EVP_PKEY_free(pkey
);
2241 if (keysize
> 163) return 0;
2244 /* This call populates the ex_flags field correctly */
2245 X509_check_purpose(x
, -1, 0);
2246 if ((x
->sig_alg
) && (x
->sig_alg
->algorithm
))
2248 signature_nid
= OBJ_obj2nid(x
->sig_alg
->algorithm
);
2249 OBJ_find_sigid_algs(signature_nid
, &md_nid
, &pk_nid
);
2251 if (alg_k
& SSL_kECDHe
|| alg_k
& SSL_kECDHr
)
2253 /* key usage, if present, must allow key agreement */
2254 if (ku_reject(x
, X509v3_KU_KEY_AGREEMENT
))
2256 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT
);
2259 if ((alg_k
& SSL_kECDHe
) && TLS1_get_version(s
) < TLS1_2_VERSION
)
2261 /* signature alg must be ECDSA */
2262 if (pk_nid
!= NID_X9_62_id_ecPublicKey
)
2264 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE
);
2268 if ((alg_k
& SSL_kECDHr
) && TLS1_get_version(s
) < TLS1_2_VERSION
)
2270 /* signature alg must be RSA */
2272 if (pk_nid
!= NID_rsaEncryption
&& pk_nid
!= NID_rsa
)
2274 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE
);
2279 if (alg_a
& SSL_aECDSA
)
2281 /* key usage, if present, must allow signing */
2282 if (ku_reject(x
, X509v3_KU_DIGITAL_SIGNATURE
))
2284 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
, SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
2289 return 1; /* all checks are ok */
2294 /* THIS NEEDS CLEANING UP */
2295 X509
*ssl_get_server_send_cert(SSL
*s
)
2297 unsigned long alg_k
,alg_a
;
2302 ssl_set_cert_masks(c
, s
->s3
->tmp
.new_cipher
);
2304 alg_k
= s
->s3
->tmp
.new_cipher
->algorithm_mkey
;
2305 alg_a
= s
->s3
->tmp
.new_cipher
->algorithm_auth
;
2307 if (alg_k
& (SSL_kECDHr
|SSL_kECDHe
))
2309 /* we don't need to look at SSL_kEECDH
2310 * since no certificate is needed for
2311 * anon ECDH and for authenticated
2312 * EECDH, the check for the auth
2313 * algorithm will set i correctly
2314 * NOTE: For ECDH-RSA, we need an ECC
2315 * not an RSA cert but for EECDH-RSA
2316 * we need an RSA cert. Placing the
2317 * checks for SSL_kECDH before RSA
2318 * checks ensures the correct cert is chosen.
2322 else if (alg_a
& SSL_aECDSA
)
2326 else if (alg_k
& SSL_kDHr
)
2328 else if (alg_k
& SSL_kDHd
)
2330 else if (alg_a
& SSL_aDSS
)
2331 i
=SSL_PKEY_DSA_SIGN
;
2332 else if (alg_a
& SSL_aRSA
)
2334 if (c
->pkeys
[SSL_PKEY_RSA_ENC
].x509
== NULL
)
2335 i
=SSL_PKEY_RSA_SIGN
;
2339 else if (alg_a
& SSL_aKRB5
)
2341 /* VRS something else here? */
2344 else if (alg_a
& SSL_aGOST94
)
2346 else if (alg_a
& SSL_aGOST01
)
2348 else /* if (alg_a & SSL_aNULL) */
2350 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT
,ERR_R_INTERNAL_ERROR
);
2353 if (c
->pkeys
[i
].x509
== NULL
) return(NULL
);
2355 return(c
->pkeys
[i
].x509
);
2358 EVP_PKEY
*ssl_get_sign_pkey(SSL
*s
,const SSL_CIPHER
*cipher
, const EVP_MD
**pmd
)
2360 unsigned long alg_a
;
2364 alg_a
= cipher
->algorithm_auth
;
2367 if ((alg_a
& SSL_aDSS
) &&
2368 (c
->pkeys
[SSL_PKEY_DSA_SIGN
].privatekey
!= NULL
))
2369 idx
= SSL_PKEY_DSA_SIGN
;
2370 else if (alg_a
& SSL_aRSA
)
2372 if (c
->pkeys
[SSL_PKEY_RSA_SIGN
].privatekey
!= NULL
)
2373 idx
= SSL_PKEY_RSA_SIGN
;
2374 else if (c
->pkeys
[SSL_PKEY_RSA_ENC
].privatekey
!= NULL
)
2375 idx
= SSL_PKEY_RSA_ENC
;
2377 else if ((alg_a
& SSL_aECDSA
) &&
2378 (c
->pkeys
[SSL_PKEY_ECC
].privatekey
!= NULL
))
2382 SSLerr(SSL_F_SSL_GET_SIGN_PKEY
,ERR_R_INTERNAL_ERROR
);
2386 *pmd
= c
->pkeys
[idx
].digest
;
2387 return c
->pkeys
[idx
].privatekey
;
2390 void ssl_update_cache(SSL
*s
,int mode
)
2394 /* If the session_id_length is 0, we are not supposed to cache it,
2395 * and it would be rather hard to do anyway :-) */
2396 if (s
->session
->session_id_length
== 0) return;
2398 i
=s
->session_ctx
->session_cache_mode
;
2399 if ((i
& mode
) && (!s
->hit
)
2400 && ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
)
2401 || SSL_CTX_add_session(s
->session_ctx
,s
->session
))
2402 && (s
->session_ctx
->new_session_cb
!= NULL
))
2404 CRYPTO_add(&s
->session
->references
,1,CRYPTO_LOCK_SSL_SESSION
);
2405 if (!s
->session_ctx
->new_session_cb(s
,s
->session
))
2406 SSL_SESSION_free(s
->session
);
2409 /* auto flush every 255 connections */
2410 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) &&
2411 ((i
& mode
) == mode
))
2413 if ( (((mode
& SSL_SESS_CACHE_CLIENT
)
2414 ?s
->session_ctx
->stats
.sess_connect_good
2415 :s
->session_ctx
->stats
.sess_accept_good
) & 0xff) == 0xff)
2417 SSL_CTX_flush_sessions(s
->session_ctx
,(unsigned long)time(NULL
));
2422 const SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
2427 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
2432 if (s
->method
!= meth
)
2434 if (s
->handshake_func
!= NULL
)
2435 conn
=(s
->handshake_func
== s
->method
->ssl_connect
);
2437 if (s
->method
->version
== meth
->version
)
2441 s
->method
->ssl_free(s
);
2443 ret
=s
->method
->ssl_new(s
);
2447 s
->handshake_func
=meth
->ssl_connect
;
2449 s
->handshake_func
=meth
->ssl_accept
;
2454 int SSL_get_error(const SSL
*s
,int i
)
2460 if (i
> 0) return(SSL_ERROR_NONE
);
2462 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2463 * etc, where we do encode the error */
2464 if ((l
=ERR_peek_error()) != 0)
2466 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
2467 return(SSL_ERROR_SYSCALL
);
2469 return(SSL_ERROR_SSL
);
2472 if ((i
< 0) && SSL_want_read(s
))
2474 bio
=SSL_get_rbio(s
);
2475 if (BIO_should_read(bio
))
2476 return(SSL_ERROR_WANT_READ
);
2477 else if (BIO_should_write(bio
))
2478 /* This one doesn't make too much sense ... We never try
2479 * to write to the rbio, and an application program where
2480 * rbio and wbio are separate couldn't even know what it
2482 * However if we ever set s->rwstate incorrectly
2483 * (so that we have SSL_want_read(s) instead of
2484 * SSL_want_write(s)) and rbio and wbio *are* the same,
2485 * this test works around that bug; so it might be safer
2487 return(SSL_ERROR_WANT_WRITE
);
2488 else if (BIO_should_io_special(bio
))
2490 reason
=BIO_get_retry_reason(bio
);
2491 if (reason
== BIO_RR_CONNECT
)
2492 return(SSL_ERROR_WANT_CONNECT
);
2493 else if (reason
== BIO_RR_ACCEPT
)
2494 return(SSL_ERROR_WANT_ACCEPT
);
2496 return(SSL_ERROR_SYSCALL
); /* unknown */
2500 if ((i
< 0) && SSL_want_write(s
))
2502 bio
=SSL_get_wbio(s
);
2503 if (BIO_should_write(bio
))
2504 return(SSL_ERROR_WANT_WRITE
);
2505 else if (BIO_should_read(bio
))
2506 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2507 return(SSL_ERROR_WANT_READ
);
2508 else if (BIO_should_io_special(bio
))
2510 reason
=BIO_get_retry_reason(bio
);
2511 if (reason
== BIO_RR_CONNECT
)
2512 return(SSL_ERROR_WANT_CONNECT
);
2513 else if (reason
== BIO_RR_ACCEPT
)
2514 return(SSL_ERROR_WANT_ACCEPT
);
2516 return(SSL_ERROR_SYSCALL
);
2519 if ((i
< 0) && SSL_want_x509_lookup(s
))
2521 return(SSL_ERROR_WANT_X509_LOOKUP
);
2526 if (s
->version
== SSL2_VERSION
)
2528 /* assume it is the socket being closed */
2529 return(SSL_ERROR_ZERO_RETURN
);
2533 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
2534 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
2535 return(SSL_ERROR_ZERO_RETURN
);
2538 return(SSL_ERROR_SYSCALL
);
2541 int SSL_do_handshake(SSL
*s
)
2545 if (s
->handshake_func
== NULL
)
2547 SSLerr(SSL_F_SSL_DO_HANDSHAKE
,SSL_R_CONNECTION_TYPE_NOT_SET
);
2551 s
->method
->ssl_renegotiate_check(s
);
2553 if (SSL_in_init(s
) || SSL_in_before(s
))
2555 ret
=s
->handshake_func(s
);
2560 /* For the next 2 functions, SSL_clear() sets shutdown and so
2561 * one of these calls will reset it */
2562 void SSL_set_accept_state(SSL
*s
)
2566 s
->state
=SSL_ST_ACCEPT
|SSL_ST_BEFORE
;
2567 s
->handshake_func
=s
->method
->ssl_accept
;
2568 /* clear the current cipher */
2569 ssl_clear_cipher_ctx(s
);
2570 ssl_clear_hash_ctx(&s
->read_hash
);
2571 ssl_clear_hash_ctx(&s
->write_hash
);
2574 void SSL_set_connect_state(SSL
*s
)
2578 s
->state
=SSL_ST_CONNECT
|SSL_ST_BEFORE
;
2579 s
->handshake_func
=s
->method
->ssl_connect
;
2580 /* clear the current cipher */
2581 ssl_clear_cipher_ctx(s
);
2582 ssl_clear_hash_ctx(&s
->read_hash
);
2583 ssl_clear_hash_ctx(&s
->write_hash
);
2586 int ssl_undefined_function(SSL
*s
)
2588 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2592 int ssl_undefined_void_function(void)
2594 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2598 int ssl_undefined_const_function(const SSL
*s
)
2600 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2604 SSL_METHOD
*ssl_bad_method(int ver
)
2606 SSLerr(SSL_F_SSL_BAD_METHOD
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2610 const char *SSL_get_version(const SSL
*s
)
2612 if (s
->version
== TLS1_2_VERSION
)
2614 else if (s
->version
== TLS1_1_VERSION
)
2616 else if (s
->version
== TLS1_VERSION
)
2618 else if (s
->version
== SSL3_VERSION
)
2620 else if (s
->version
== SSL2_VERSION
)
2626 SSL
*SSL_dup(SSL
*s
)
2628 STACK_OF(X509_NAME
) *sk
;
2633 if ((ret
=SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
2636 ret
->version
= s
->version
;
2637 ret
->type
= s
->type
;
2638 ret
->method
= s
->method
;
2640 if (s
->session
!= NULL
)
2642 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2643 SSL_copy_session_id(ret
,s
);
2647 /* No session has been established yet, so we have to expect
2648 * that s->cert or ret->cert will be changed later --
2649 * they should not both point to the same object,
2650 * and thus we can't use SSL_copy_session_id. */
2652 ret
->method
->ssl_free(ret
);
2653 ret
->method
= s
->method
;
2654 ret
->method
->ssl_new(ret
);
2656 if (s
->cert
!= NULL
)
2658 if (ret
->cert
!= NULL
)
2660 ssl_cert_free(ret
->cert
);
2662 ret
->cert
= ssl_cert_dup(s
->cert
);
2663 if (ret
->cert
== NULL
)
2667 SSL_set_session_id_context(ret
,
2668 s
->sid_ctx
, s
->sid_ctx_length
);
2671 ret
->options
=s
->options
;
2673 SSL_set_max_cert_list(ret
,SSL_get_max_cert_list(s
));
2674 SSL_set_read_ahead(ret
,SSL_get_read_ahead(s
));
2675 ret
->msg_callback
= s
->msg_callback
;
2676 ret
->msg_callback_arg
= s
->msg_callback_arg
;
2677 SSL_set_verify(ret
,SSL_get_verify_mode(s
),
2678 SSL_get_verify_callback(s
));
2679 SSL_set_verify_depth(ret
,SSL_get_verify_depth(s
));
2680 ret
->generate_session_id
= s
->generate_session_id
;
2682 SSL_set_info_callback(ret
,SSL_get_info_callback(s
));
2684 ret
->debug
=s
->debug
;
2686 /* copy app data, a little dangerous perhaps */
2687 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
2690 /* setup rbio, and wbio */
2691 if (s
->rbio
!= NULL
)
2693 if (!BIO_dup_state(s
->rbio
,(char *)&ret
->rbio
))
2696 if (s
->wbio
!= NULL
)
2698 if (s
->wbio
!= s
->rbio
)
2700 if (!BIO_dup_state(s
->wbio
,(char *)&ret
->wbio
))
2704 ret
->wbio
=ret
->rbio
;
2706 ret
->rwstate
= s
->rwstate
;
2707 ret
->in_handshake
= s
->in_handshake
;
2708 ret
->handshake_func
= s
->handshake_func
;
2709 ret
->server
= s
->server
;
2710 ret
->renegotiate
= s
->renegotiate
;
2711 ret
->new_session
= s
->new_session
;
2712 ret
->quiet_shutdown
= s
->quiet_shutdown
;
2713 ret
->shutdown
=s
->shutdown
;
2714 ret
->state
=s
->state
; /* SSL_dup does not really work at any state, though */
2715 ret
->rstate
=s
->rstate
;
2716 ret
->init_num
= 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2719 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
2721 /* dup the cipher_list and cipher_list_by_id stacks */
2722 if (s
->cipher_list
!= NULL
)
2724 if ((ret
->cipher_list
=sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
2727 if (s
->cipher_list_by_id
!= NULL
)
2728 if ((ret
->cipher_list_by_id
=sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
2732 /* Dup the client_CA list */
2733 if (s
->client_CA
!= NULL
)
2735 if ((sk
=sk_X509_NAME_dup(s
->client_CA
)) == NULL
) goto err
;
2737 for (i
=0; i
<sk_X509_NAME_num(sk
); i
++)
2739 xn
=sk_X509_NAME_value(sk
,i
);
2740 if (sk_X509_NAME_set(sk
,i
,X509_NAME_dup(xn
)) == NULL
)
2751 if (ret
!= NULL
) SSL_free(ret
);
2757 void ssl_clear_cipher_ctx(SSL
*s
)
2759 if (s
->enc_read_ctx
!= NULL
)
2761 EVP_CIPHER_CTX_cleanup(s
->enc_read_ctx
);
2762 OPENSSL_free(s
->enc_read_ctx
);
2763 s
->enc_read_ctx
=NULL
;
2765 if (s
->enc_write_ctx
!= NULL
)
2767 EVP_CIPHER_CTX_cleanup(s
->enc_write_ctx
);
2768 OPENSSL_free(s
->enc_write_ctx
);
2769 s
->enc_write_ctx
=NULL
;
2771 #ifndef OPENSSL_NO_COMP
2772 if (s
->expand
!= NULL
)
2774 COMP_CTX_free(s
->expand
);
2777 if (s
->compress
!= NULL
)
2779 COMP_CTX_free(s
->compress
);
2785 /* Fix this function so that it takes an optional type parameter */
2786 X509
*SSL_get_certificate(const SSL
*s
)
2788 if (s
->cert
!= NULL
)
2789 return(s
->cert
->key
->x509
);
2794 /* Fix this function so that it takes an optional type parameter */
2795 EVP_PKEY
*SSL_get_privatekey(SSL
*s
)
2797 if (s
->cert
!= NULL
)
2798 return(s
->cert
->key
->privatekey
);
2803 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
2805 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
2806 return(s
->session
->cipher
);
2809 #ifdef OPENSSL_NO_COMP
2810 const void *SSL_get_current_compression(SSL
*s
)
2814 const void *SSL_get_current_expansion(SSL
*s
)
2820 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
2822 if (s
->compress
!= NULL
)
2823 return(s
->compress
->meth
);
2827 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
2829 if (s
->expand
!= NULL
)
2830 return(s
->expand
->meth
);
2835 int ssl_init_wbio_buffer(SSL
*s
,int push
)
2839 if (s
->bbio
== NULL
)
2841 bbio
=BIO_new(BIO_f_buffer());
2842 if (bbio
== NULL
) return(0);
2848 if (s
->bbio
== s
->wbio
)
2849 s
->wbio
=BIO_pop(s
->wbio
);
2851 (void)BIO_reset(bbio
);
2852 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2853 if (!BIO_set_read_buffer_size(bbio
,1))
2855 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
,ERR_R_BUF_LIB
);
2860 if (s
->wbio
!= bbio
)
2861 s
->wbio
=BIO_push(bbio
,s
->wbio
);
2865 if (s
->wbio
== bbio
)
2866 s
->wbio
=BIO_pop(bbio
);
2871 void ssl_free_wbio_buffer(SSL
*s
)
2873 if (s
->bbio
== NULL
) return;
2875 if (s
->bbio
== s
->wbio
)
2877 /* remove buffering */
2878 s
->wbio
=BIO_pop(s
->wbio
);
2879 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2880 assert(s
->wbio
!= NULL
);
2887 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
,int mode
)
2889 ctx
->quiet_shutdown
=mode
;
2892 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
2894 return(ctx
->quiet_shutdown
);
2897 void SSL_set_quiet_shutdown(SSL
*s
,int mode
)
2899 s
->quiet_shutdown
=mode
;
2902 int SSL_get_quiet_shutdown(const SSL
*s
)
2904 return(s
->quiet_shutdown
);
2907 void SSL_set_shutdown(SSL
*s
,int mode
)
2912 int SSL_get_shutdown(const SSL
*s
)
2914 return(s
->shutdown
);
2917 int SSL_version(const SSL
*s
)
2922 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
2927 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
* ctx
)
2929 if (ssl
->ctx
== ctx
)
2931 #ifndef OPENSSL_NO_TLSEXT
2933 ctx
= ssl
->initial_ctx
;
2935 if (ssl
->cert
!= NULL
)
2936 ssl_cert_free(ssl
->cert
);
2937 ssl
->cert
= ssl_cert_dup(ctx
->cert
);
2938 CRYPTO_add(&ctx
->references
,1,CRYPTO_LOCK_SSL_CTX
);
2939 if (ssl
->ctx
!= NULL
)
2940 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
2945 #ifndef OPENSSL_NO_STDIO
2946 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
2948 return(X509_STORE_set_default_paths(ctx
->cert_store
));
2951 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
2954 return(X509_STORE_load_locations(ctx
->cert_store
,CAfile
,CApath
));
2958 void SSL_set_info_callback(SSL
*ssl
,
2959 void (*cb
)(const SSL
*ssl
,int type
,int val
))
2961 ssl
->info_callback
=cb
;
2964 /* One compiler (Diab DCC) doesn't like argument names in returned
2965 function pointer. */
2966 void (*SSL_get_info_callback(const SSL
*ssl
))(const SSL
* /*ssl*/,int /*type*/,int /*val*/)
2968 return ssl
->info_callback
;
2971 int SSL_state(const SSL
*ssl
)
2976 void SSL_set_state(SSL
*ssl
, int state
)
2981 void SSL_set_verify_result(SSL
*ssl
,long arg
)
2983 ssl
->verify_result
=arg
;
2986 long SSL_get_verify_result(const SSL
*ssl
)
2988 return(ssl
->verify_result
);
2991 int SSL_get_ex_new_index(long argl
,void *argp
,CRYPTO_EX_new
*new_func
,
2992 CRYPTO_EX_dup
*dup_func
,CRYPTO_EX_free
*free_func
)
2994 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL
, argl
, argp
,
2995 new_func
, dup_func
, free_func
);
2998 int SSL_set_ex_data(SSL
*s
,int idx
,void *arg
)
3000 return(CRYPTO_set_ex_data(&s
->ex_data
,idx
,arg
));
3003 void *SSL_get_ex_data(const SSL
*s
,int idx
)
3005 return(CRYPTO_get_ex_data(&s
->ex_data
,idx
));
3008 int SSL_CTX_get_ex_new_index(long argl
,void *argp
,CRYPTO_EX_new
*new_func
,
3009 CRYPTO_EX_dup
*dup_func
,CRYPTO_EX_free
*free_func
)
3011 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX
, argl
, argp
,
3012 new_func
, dup_func
, free_func
);
3015 int SSL_CTX_set_ex_data(SSL_CTX
*s
,int idx
,void *arg
)
3017 return(CRYPTO_set_ex_data(&s
->ex_data
,idx
,arg
));
3020 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
,int idx
)
3022 return(CRYPTO_get_ex_data(&s
->ex_data
,idx
));
3030 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
3032 return(ctx
->cert_store
);
3035 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
,X509_STORE
*store
)
3037 if (ctx
->cert_store
!= NULL
)
3038 X509_STORE_free(ctx
->cert_store
);
3039 ctx
->cert_store
=store
;
3042 int SSL_want(const SSL
*s
)
3048 * \brief Set the callback for generating temporary RSA keys.
3049 * \param ctx the SSL context.
3050 * \param cb the callback
3053 #ifndef OPENSSL_NO_RSA
3054 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX
*ctx
,RSA
*(*cb
)(SSL
*ssl
,
3058 SSL_CTX_callback_ctrl(ctx
,SSL_CTRL_SET_TMP_RSA_CB
,(void (*)(void))cb
);
3061 void SSL_set_tmp_rsa_callback(SSL
*ssl
,RSA
*(*cb
)(SSL
*ssl
,
3065 SSL_callback_ctrl(ssl
,SSL_CTRL_SET_TMP_RSA_CB
,(void (*)(void))cb
);
3071 * \brief The RSA temporary key callback function.
3072 * \param ssl the SSL session.
3073 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3074 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3075 * of the required key in bits.
3076 * \return the temporary RSA key.
3077 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3080 RSA
*cb(SSL
*ssl
,int is_export
,int keylength
)
3085 * \brief Set the callback for generating temporary DH keys.
3086 * \param ctx the SSL context.
3087 * \param dh the callback
3090 #ifndef OPENSSL_NO_DH
3091 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,DH
*(*dh
)(SSL
*ssl
,int is_export
,
3094 SSL_CTX_callback_ctrl(ctx
,SSL_CTRL_SET_TMP_DH_CB
,(void (*)(void))dh
);
3097 void SSL_set_tmp_dh_callback(SSL
*ssl
,DH
*(*dh
)(SSL
*ssl
,int is_export
,
3100 SSL_callback_ctrl(ssl
,SSL_CTRL_SET_TMP_DH_CB
,(void (*)(void))dh
);
3104 #ifndef OPENSSL_NO_ECDH
3105 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX
*ctx
,EC_KEY
*(*ecdh
)(SSL
*ssl
,int is_export
,
3108 SSL_CTX_callback_ctrl(ctx
,SSL_CTRL_SET_TMP_ECDH_CB
,(void (*)(void))ecdh
);
3111 void SSL_set_tmp_ecdh_callback(SSL
*ssl
,EC_KEY
*(*ecdh
)(SSL
*ssl
,int is_export
,
3114 SSL_callback_ctrl(ssl
,SSL_CTRL_SET_TMP_ECDH_CB
,(void (*)(void))ecdh
);
3118 #ifndef OPENSSL_NO_PSK
3119 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
3121 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
)
3123 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
3126 if (ctx
->psk_identity_hint
!= NULL
)
3127 OPENSSL_free(ctx
->psk_identity_hint
);
3128 if (identity_hint
!= NULL
)
3130 ctx
->psk_identity_hint
= BUF_strdup(identity_hint
);
3131 if (ctx
->psk_identity_hint
== NULL
)
3135 ctx
->psk_identity_hint
= NULL
;
3139 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
3144 if (s
->session
== NULL
)
3145 return 1; /* session not created yet, ignored */
3147 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
)
3149 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
3152 if (s
->session
->psk_identity_hint
!= NULL
)
3153 OPENSSL_free(s
->session
->psk_identity_hint
);
3154 if (identity_hint
!= NULL
)
3156 s
->session
->psk_identity_hint
= BUF_strdup(identity_hint
);
3157 if (s
->session
->psk_identity_hint
== NULL
)
3161 s
->session
->psk_identity_hint
= NULL
;
3165 const char *SSL_get_psk_identity_hint(const SSL
*s
)
3167 if (s
== NULL
|| s
->session
== NULL
)
3169 return(s
->session
->psk_identity_hint
);
3172 const char *SSL_get_psk_identity(const SSL
*s
)
3174 if (s
== NULL
|| s
->session
== NULL
)
3176 return(s
->session
->psk_identity
);
3179 void SSL_set_psk_client_callback(SSL
*s
,
3180 unsigned int (*cb
)(SSL
*ssl
, const char *hint
,
3181 char *identity
, unsigned int max_identity_len
, unsigned char *psk
,
3182 unsigned int max_psk_len
))
3184 s
->psk_client_callback
= cb
;
3187 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
,
3188 unsigned int (*cb
)(SSL
*ssl
, const char *hint
,
3189 char *identity
, unsigned int max_identity_len
, unsigned char *psk
,
3190 unsigned int max_psk_len
))
3192 ctx
->psk_client_callback
= cb
;
3195 void SSL_set_psk_server_callback(SSL
*s
,
3196 unsigned int (*cb
)(SSL
*ssl
, const char *identity
,
3197 unsigned char *psk
, unsigned int max_psk_len
))
3199 s
->psk_server_callback
= cb
;
3202 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
,
3203 unsigned int (*cb
)(SSL
*ssl
, const char *identity
,
3204 unsigned char *psk
, unsigned int max_psk_len
))
3206 ctx
->psk_server_callback
= cb
;
3210 void SSL_CTX_set_msg_callback(SSL_CTX
*ctx
, void (*cb
)(int write_p
, int version
, int content_type
, const void *buf
, size_t len
, SSL
*ssl
, void *arg
))
3212 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
3214 void SSL_set_msg_callback(SSL
*ssl
, void (*cb
)(int write_p
, int version
, int content_type
, const void *buf
, size_t len
, SSL
*ssl
, void *arg
))
3216 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
3219 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
3220 int (*cb
)(SSL
*ssl
, int is_forward_secure
))
3222 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
3223 (void (*)(void))cb
);
3225 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
3226 int (*cb
)(SSL
*ssl
, int is_forward_secure
))
3228 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
3229 (void (*)(void))cb
);
3232 /* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3233 * vairable, freeing EVP_MD_CTX previously stored in that variable, if
3234 * any. If EVP_MD pointer is passed, initializes ctx with this md
3235 * Returns newly allocated ctx;
3238 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
,const EVP_MD
*md
)
3240 ssl_clear_hash_ctx(hash
);
3241 *hash
= EVP_MD_CTX_create();
3242 if (md
) EVP_DigestInit_ex(*hash
,md
,NULL
);
3245 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
3248 if (*hash
) EVP_MD_CTX_destroy(*hash
);
3252 void SSL_set_debug(SSL
*s
, int debug
)
3257 int SSL_cache_hit(SSL
*s
)
3262 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
3263 #include "../crypto/bio/bss_file.c"
3266 IMPLEMENT_STACK_OF(SSL_CIPHER
)
3267 IMPLEMENT_STACK_OF(SSL_COMP
)
3268 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
,