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 "ssl_locl.h"
150 #include "kssl_lcl.h"
151 #include <openssl/objects.h>
152 #include <openssl/lhash.h>
153 #include <openssl/x509v3.h>
154 #include <openssl/rand.h>
155 #include <openssl/ocsp.h>
156 #ifndef OPENSSL_NO_DH
157 #include <openssl/dh.h>
159 #ifndef OPENSSL_NO_ENGINE
160 #include <openssl/engine.h>
163 const char *SSL_version_str
=OPENSSL_VERSION_TEXT
;
165 SSL3_ENC_METHOD ssl3_undef_enc_method
={
166 /* evil casts, but these functions are only called if there's a library bug */
167 (int (*)(SSL
*,int))ssl_undefined_function
,
168 (int (*)(SSL
*, unsigned char *, int))ssl_undefined_function
,
169 ssl_undefined_function
,
170 (int (*)(SSL
*, unsigned char *, unsigned char *, int))ssl_undefined_function
,
171 (int (*)(SSL
*, int))ssl_undefined_function
,
172 (int (*)(SSL
*, const char*, int, unsigned char *))ssl_undefined_function
,
173 0, /* finish_mac_length */
174 (int (*)(SSL
*, int, unsigned char *))ssl_undefined_function
,
175 NULL
, /* client_finished_label */
176 0, /* client_finished_label_len */
177 NULL
, /* server_finished_label */
178 0, /* server_finished_label_len */
179 (int (*)(int))ssl_undefined_function
,
180 (int (*)(SSL
*, unsigned char *, size_t, const char *,
181 size_t, const unsigned char *, size_t,
182 int use_context
)) ssl_undefined_function
,
185 int SSL_clear(SSL
*s
)
188 if (s
->method
== NULL
)
190 SSLerr(SSL_F_SSL_CLEAR
,SSL_R_NO_METHOD_SPECIFIED
);
194 if (ssl_clear_bad_session(s
))
196 SSL_SESSION_free(s
->session
);
204 #if 0 /* Disabled since version 1.10 of this file (early return not
205 * needed because SSL_clear is not called when doing renegotiation) */
206 /* This is set if we are doing dynamic renegotiation so keep
207 * the old cipher. It is sort of a SSL_clear_lite :-) */
208 if (s
->renegotiate
) return(1);
212 SSLerr(SSL_F_SSL_CLEAR
,ERR_R_INTERNAL_ERROR
);
219 s
->state
=SSL_ST_BEFORE
|((s
->server
)?SSL_ST_ACCEPT
:SSL_ST_CONNECT
);
221 s
->version
=s
->method
->version
;
222 s
->client_version
=s
->version
;
223 s
->rwstate
=SSL_NOTHING
;
224 s
->rstate
=SSL_ST_READ_HEADER
;
226 s
->read_ahead
=s
->ctx
->read_ahead
;
229 if (s
->init_buf
!= NULL
)
231 BUF_MEM_free(s
->init_buf
);
235 ssl_clear_cipher_ctx(s
);
236 ssl_clear_hash_ctx(&s
->read_hash
);
237 ssl_clear_hash_ctx(&s
->write_hash
);
242 /* Check to see if we were changed into a different method, if
243 * so, revert back if we are not doing session-id reuse. */
244 if (!s
->in_handshake
&& (s
->session
== NULL
) && (s
->method
!= s
->ctx
->method
))
246 s
->method
->ssl_free(s
);
247 s
->method
=s
->ctx
->method
;
248 if (!s
->method
->ssl_new(s
))
253 s
->method
->ssl_clear(s
);
257 /** Used to change an SSL_CTXs default SSL method type */
258 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
,const SSL_METHOD
*meth
)
260 STACK_OF(SSL_CIPHER
) *sk
;
264 sk
=ssl_create_cipher_list(ctx
->method
,&(ctx
->cipher_list
),
265 &(ctx
->cipher_list_by_id
),
266 meth
->version
== SSL2_VERSION
? "SSLv2" : SSL_DEFAULT_CIPHER_LIST
, ctx
->cert
);
267 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0))
269 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
275 SSL
*SSL_new(SSL_CTX
*ctx
)
281 SSLerr(SSL_F_SSL_NEW
,SSL_R_NULL_SSL_CTX
);
284 if (ctx
->method
== NULL
)
286 SSLerr(SSL_F_SSL_NEW
,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
290 s
=(SSL
*)OPENSSL_malloc(sizeof(SSL
));
291 if (s
== NULL
) goto err
;
292 memset(s
,0,sizeof(SSL
));
294 #ifndef OPENSSL_NO_KRB5
295 s
->kssl_ctx
= kssl_ctx_new();
296 #endif /* OPENSSL_NO_KRB5 */
298 s
->options
=ctx
->options
;
300 s
->max_cert_list
=ctx
->max_cert_list
;
302 if (ctx
->cert
!= NULL
)
304 /* Earlier library versions used to copy the pointer to
305 * the CERT, not its contents; only when setting new
306 * parameters for the per-SSL copy, ssl_cert_new would be
307 * called (and the direct reference to the per-SSL_CTX
308 * settings would be lost, but those still were indirectly
309 * accessed for various purposes, and for that reason they
310 * used to be known as s->ctx->default_cert).
311 * Now we don't look at the SSL_CTX's CERT after having
312 * duplicated it once. */
314 s
->cert
= ssl_cert_dup(ctx
->cert
);
319 s
->cert
=NULL
; /* Cannot really happen (see SSL_CTX_new) */
321 s
->read_ahead
=ctx
->read_ahead
;
322 s
->msg_callback
=ctx
->msg_callback
;
323 s
->msg_callback_arg
=ctx
->msg_callback_arg
;
324 s
->verify_mode
=ctx
->verify_mode
;
325 s
->not_resumable_session_cb
=ctx
->not_resumable_session_cb
;
327 s
->verify_depth
=ctx
->verify_depth
;
329 s
->sid_ctx_length
=ctx
->sid_ctx_length
;
330 OPENSSL_assert(s
->sid_ctx_length
<= sizeof s
->sid_ctx
);
331 memcpy(&s
->sid_ctx
,&ctx
->sid_ctx
,sizeof(s
->sid_ctx
));
332 s
->verify_callback
=ctx
->default_verify_callback
;
333 s
->generate_session_id
=ctx
->generate_session_id
;
335 s
->param
= X509_VERIFY_PARAM_new();
338 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
340 s
->purpose
= ctx
->purpose
;
341 s
->trust
= ctx
->trust
;
343 s
->quiet_shutdown
=ctx
->quiet_shutdown
;
344 s
->max_send_fragment
= ctx
->max_send_fragment
;
346 CRYPTO_add(&ctx
->references
,1,CRYPTO_LOCK_SSL_CTX
);
348 #ifndef OPENSSL_NO_TLSEXT
349 s
->tlsext_debug_cb
= 0;
350 s
->tlsext_debug_arg
= NULL
;
351 s
->tlsext_ticket_expected
= 0;
352 s
->tlsext_status_type
= -1;
353 s
->tlsext_status_expected
= 0;
354 s
->tlsext_ocsp_ids
= NULL
;
355 s
->tlsext_ocsp_exts
= NULL
;
356 s
->tlsext_ocsp_resp
= NULL
;
357 s
->tlsext_ocsp_resplen
= -1;
358 CRYPTO_add(&ctx
->references
,1,CRYPTO_LOCK_SSL_CTX
);
360 #ifndef OPENSSL_NO_EC
361 if (ctx
->tlsext_ecpointformatlist
)
363 s
->tlsext_ecpointformatlist
=
364 BUF_memdup(ctx
->tlsext_ecpointformatlist
,
365 ctx
->tlsext_ecpointformatlist_length
);
366 if (!s
->tlsext_ecpointformatlist
)
368 s
->tlsext_ecpointformatlist_length
=
369 ctx
->tlsext_ecpointformatlist_length
;
371 if (ctx
->tlsext_ellipticcurvelist
)
373 s
->tlsext_ellipticcurvelist
=
374 BUF_memdup(ctx
->tlsext_ellipticcurvelist
,
375 ctx
->tlsext_ellipticcurvelist_length
);
376 if (!s
->tlsext_ellipticcurvelist
)
378 s
->tlsext_ellipticcurvelist_length
=
379 ctx
->tlsext_ellipticcurvelist_length
;
382 # ifndef OPENSSL_NO_NEXTPROTONEG
383 s
->next_proto_negotiated
= NULL
;
387 s
->verify_result
=X509_V_OK
;
389 s
->method
=ctx
->method
;
391 if (!s
->method
->ssl_new(s
))
395 s
->server
=(ctx
->method
->ssl_accept
== ssl_undefined_function
)?0:1;
399 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
401 #ifndef OPENSSL_NO_PSK
402 s
->psk_client_callback
=ctx
->psk_client_callback
;
403 s
->psk_server_callback
=ctx
->psk_server_callback
;
411 ssl_cert_free(s
->cert
);
413 SSL_CTX_free(s
->ctx
); /* decrement reference count */
416 SSLerr(SSL_F_SSL_NEW
,ERR_R_MALLOC_FAILURE
);
420 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
,const unsigned char *sid_ctx
,
421 unsigned int sid_ctx_len
)
423 if(sid_ctx_len
> sizeof ctx
->sid_ctx
)
425 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
428 ctx
->sid_ctx_length
=sid_ctx_len
;
429 memcpy(ctx
->sid_ctx
,sid_ctx
,sid_ctx_len
);
434 int SSL_set_session_id_context(SSL
*ssl
,const unsigned char *sid_ctx
,
435 unsigned int sid_ctx_len
)
437 if(sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
)
439 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
442 ssl
->sid_ctx_length
=sid_ctx_len
;
443 memcpy(ssl
->sid_ctx
,sid_ctx
,sid_ctx_len
);
448 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
450 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX
);
451 ctx
->generate_session_id
= cb
;
452 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX
);
456 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
458 CRYPTO_w_lock(CRYPTO_LOCK_SSL
);
459 ssl
->generate_session_id
= cb
;
460 CRYPTO_w_unlock(CRYPTO_LOCK_SSL
);
464 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
467 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
468 * we can "construct" a session to give us the desired check - ie. to
469 * find if there's a session in the hash table that would conflict with
470 * any new session built out of this id/id_len and the ssl_version in
471 * use by this SSL. */
474 if(id_len
> sizeof r
.session_id
)
477 r
.ssl_version
= ssl
->version
;
478 r
.session_id_length
= id_len
;
479 memcpy(r
.session_id
, id
, id_len
);
480 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
481 * callback is calling us to check the uniqueness of a shorter ID, it
482 * must be compared as a padded-out ID because that is what it will be
483 * converted to when the callback has finished choosing it. */
484 if((r
.ssl_version
== SSL2_VERSION
) &&
485 (id_len
< SSL2_SSL_SESSION_ID_LENGTH
))
487 memset(r
.session_id
+ id_len
, 0,
488 SSL2_SSL_SESSION_ID_LENGTH
- id_len
);
489 r
.session_id_length
= SSL2_SSL_SESSION_ID_LENGTH
;
492 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX
);
493 p
= lh_SSL_SESSION_retrieve(ssl
->ctx
->sessions
, &r
);
494 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX
);
498 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
500 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
503 int SSL_set_purpose(SSL
*s
, int purpose
)
505 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
508 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
510 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
513 int SSL_set_trust(SSL
*s
, int trust
)
515 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
518 int SSL_CTX_set1_param(SSL_CTX
*ctx
, X509_VERIFY_PARAM
*vpm
)
520 return X509_VERIFY_PARAM_set1(ctx
->param
, vpm
);
523 int SSL_set1_param(SSL
*ssl
, X509_VERIFY_PARAM
*vpm
)
525 return X509_VERIFY_PARAM_set1(ssl
->param
, vpm
);
528 void SSL_certs_clear(SSL
*s
)
530 ssl_cert_clear_certs(s
->cert
);
533 void SSL_free(SSL
*s
)
540 i
=CRYPTO_add(&s
->references
,-1,CRYPTO_LOCK_SSL
);
548 fprintf(stderr
,"SSL_free, bad reference count\n");
554 X509_VERIFY_PARAM_free(s
->param
);
556 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
560 /* If the buffering BIO is in place, pop it off */
561 if (s
->bbio
== s
->wbio
)
563 s
->wbio
=BIO_pop(s
->wbio
);
569 BIO_free_all(s
->rbio
);
570 if ((s
->wbio
!= NULL
) && (s
->wbio
!= s
->rbio
))
571 BIO_free_all(s
->wbio
);
573 if (s
->init_buf
!= NULL
) BUF_MEM_free(s
->init_buf
);
575 /* add extra stuff */
576 if (s
->cipher_list
!= NULL
) sk_SSL_CIPHER_free(s
->cipher_list
);
577 if (s
->cipher_list_by_id
!= NULL
) sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
579 /* Make the next call work :-) */
580 if (s
->session
!= NULL
)
582 ssl_clear_bad_session(s
);
583 SSL_SESSION_free(s
->session
);
586 ssl_clear_cipher_ctx(s
);
587 ssl_clear_hash_ctx(&s
->read_hash
);
588 ssl_clear_hash_ctx(&s
->write_hash
);
590 if (s
->cert
!= NULL
) ssl_cert_free(s
->cert
);
591 /* Free up if allocated */
593 #ifndef OPENSSL_NO_TLSEXT
594 if (s
->tlsext_hostname
)
595 OPENSSL_free(s
->tlsext_hostname
);
596 if (s
->initial_ctx
) SSL_CTX_free(s
->initial_ctx
);
597 #ifndef OPENSSL_NO_EC
598 if (s
->tlsext_ecpointformatlist
) OPENSSL_free(s
->tlsext_ecpointformatlist
);
599 if (s
->tlsext_ellipticcurvelist
) OPENSSL_free(s
->tlsext_ellipticcurvelist
);
600 #endif /* OPENSSL_NO_EC */
601 if (s
->tlsext_opaque_prf_input
) OPENSSL_free(s
->tlsext_opaque_prf_input
);
602 if (s
->tlsext_ocsp_exts
)
603 sk_X509_EXTENSION_pop_free(s
->tlsext_ocsp_exts
,
604 X509_EXTENSION_free
);
605 if (s
->tlsext_ocsp_ids
)
606 sk_OCSP_RESPID_pop_free(s
->tlsext_ocsp_ids
, OCSP_RESPID_free
);
607 if (s
->tlsext_ocsp_resp
)
608 OPENSSL_free(s
->tlsext_ocsp_resp
);
611 if (s
->client_CA
!= NULL
)
612 sk_X509_NAME_pop_free(s
->client_CA
,X509_NAME_free
);
614 if (s
->method
!= NULL
) s
->method
->ssl_free(s
);
616 if (s
->ctx
) SSL_CTX_free(s
->ctx
);
618 #ifndef OPENSSL_NO_KRB5
619 if (s
->kssl_ctx
!= NULL
)
620 kssl_ctx_free(s
->kssl_ctx
);
621 #endif /* OPENSSL_NO_KRB5 */
623 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
624 if (s
->next_proto_negotiated
)
625 OPENSSL_free(s
->next_proto_negotiated
);
628 if (s
->srtp_profiles
)
629 sk_SRTP_PROTECTION_PROFILE_free(s
->srtp_profiles
);
634 void SSL_set_bio(SSL
*s
,BIO
*rbio
,BIO
*wbio
)
636 /* If the output buffering BIO is still in place, remove it
640 if (s
->wbio
== s
->bbio
)
642 s
->wbio
=s
->wbio
->next_bio
;
643 s
->bbio
->next_bio
=NULL
;
646 if ((s
->rbio
!= NULL
) && (s
->rbio
!= rbio
))
647 BIO_free_all(s
->rbio
);
648 if ((s
->wbio
!= NULL
) && (s
->wbio
!= wbio
) && (s
->rbio
!= s
->wbio
))
649 BIO_free_all(s
->wbio
);
654 BIO
*SSL_get_rbio(const SSL
*s
)
657 BIO
*SSL_get_wbio(const SSL
*s
)
660 int SSL_get_fd(const SSL
*s
)
662 return(SSL_get_rfd(s
));
665 int SSL_get_rfd(const SSL
*s
)
671 r
=BIO_find_type(b
,BIO_TYPE_DESCRIPTOR
);
677 int SSL_get_wfd(const SSL
*s
)
683 r
=BIO_find_type(b
,BIO_TYPE_DESCRIPTOR
);
689 #ifndef OPENSSL_NO_SOCK
690 int SSL_set_fd(SSL
*s
,int fd
)
695 bio
=BIO_new(BIO_s_socket());
699 SSLerr(SSL_F_SSL_SET_FD
,ERR_R_BUF_LIB
);
702 BIO_set_fd(bio
,fd
,BIO_NOCLOSE
);
703 SSL_set_bio(s
,bio
,bio
);
709 int SSL_set_wfd(SSL
*s
,int fd
)
714 if ((s
->rbio
== NULL
) || (BIO_method_type(s
->rbio
) != BIO_TYPE_SOCKET
)
715 || ((int)BIO_get_fd(s
->rbio
,NULL
) != fd
))
717 bio
=BIO_new(BIO_s_socket());
720 { SSLerr(SSL_F_SSL_SET_WFD
,ERR_R_BUF_LIB
); goto err
; }
721 BIO_set_fd(bio
,fd
,BIO_NOCLOSE
);
722 SSL_set_bio(s
,SSL_get_rbio(s
),bio
);
725 SSL_set_bio(s
,SSL_get_rbio(s
),SSL_get_rbio(s
));
731 int SSL_set_rfd(SSL
*s
,int fd
)
736 if ((s
->wbio
== NULL
) || (BIO_method_type(s
->wbio
) != BIO_TYPE_SOCKET
)
737 || ((int)BIO_get_fd(s
->wbio
,NULL
) != fd
))
739 bio
=BIO_new(BIO_s_socket());
743 SSLerr(SSL_F_SSL_SET_RFD
,ERR_R_BUF_LIB
);
746 BIO_set_fd(bio
,fd
,BIO_NOCLOSE
);
747 SSL_set_bio(s
,bio
,SSL_get_wbio(s
));
750 SSL_set_bio(s
,SSL_get_wbio(s
),SSL_get_wbio(s
));
758 /* return length of latest Finished message we sent, copy to 'buf' */
759 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
765 ret
= s
->s3
->tmp
.finish_md_len
;
768 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
773 /* return length of latest Finished message we expected, copy to 'buf' */
774 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
780 ret
= s
->s3
->tmp
.peer_finish_md_len
;
783 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
789 int SSL_get_verify_mode(const SSL
*s
)
791 return(s
->verify_mode
);
794 int SSL_get_verify_depth(const SSL
*s
)
796 return X509_VERIFY_PARAM_get_depth(s
->param
);
799 int (*SSL_get_verify_callback(const SSL
*s
))(int,X509_STORE_CTX
*)
801 return(s
->verify_callback
);
804 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
806 return(ctx
->verify_mode
);
809 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
811 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
814 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
))(int,X509_STORE_CTX
*)
816 return(ctx
->default_verify_callback
);
819 void SSL_set_verify(SSL
*s
,int mode
,
820 int (*callback
)(int ok
,X509_STORE_CTX
*ctx
))
823 if (callback
!= NULL
)
824 s
->verify_callback
=callback
;
827 void SSL_set_verify_depth(SSL
*s
,int depth
)
829 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
832 void SSL_set_read_ahead(SSL
*s
,int yes
)
837 int SSL_get_read_ahead(const SSL
*s
)
839 return(s
->read_ahead
);
842 int SSL_pending(const SSL
*s
)
844 /* SSL_pending cannot work properly if read-ahead is enabled
845 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
846 * and it is impossible to fix since SSL_pending cannot report
847 * errors that may be observed while scanning the new data.
848 * (Note that SSL_pending() is often used as a boolean value,
849 * so we'd better not return -1.)
851 return(s
->method
->ssl_pending(s
));
854 X509
*SSL_get_peer_certificate(const SSL
*s
)
858 if ((s
== NULL
) || (s
->session
== NULL
))
863 if (r
== NULL
) return(r
);
865 CRYPTO_add(&r
->references
,1,CRYPTO_LOCK_X509
);
870 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
874 if ((s
== NULL
) || (s
->session
== NULL
) || (s
->session
->sess_cert
== NULL
))
877 r
=s
->session
->sess_cert
->cert_chain
;
879 /* If we are a client, cert_chain includes the peer's own
880 * certificate; if we are a server, it does not. */
885 /* Now in theory, since the calling process own 't' it should be safe to
886 * modify. We need to be able to read f without being hassled */
887 void SSL_copy_session_id(SSL
*t
,const SSL
*f
)
891 /* Do we need to to SSL locking? */
892 SSL_set_session(t
,SSL_get_session(f
));
894 /* what if we are setup as SSLv2 but want to talk SSLv3 or
896 if (t
->method
!= f
->method
)
898 t
->method
->ssl_free(t
); /* cleanup current */
899 t
->method
=f
->method
; /* change method */
900 t
->method
->ssl_new(t
); /* setup new */
906 CRYPTO_add(&f
->cert
->references
,1,CRYPTO_LOCK_SSL_CERT
);
911 if (tmp
!= NULL
) ssl_cert_free(tmp
);
912 SSL_set_session_id_context(t
,f
->sid_ctx
,f
->sid_ctx_length
);
915 /* Fix this so it checks all the valid key/cert options */
916 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
918 if ( (ctx
== NULL
) ||
919 (ctx
->cert
== NULL
) ||
920 (ctx
->cert
->key
->x509
== NULL
))
922 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,SSL_R_NO_CERTIFICATE_ASSIGNED
);
925 if (ctx
->cert
->key
->privatekey
== NULL
)
927 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
930 return(X509_check_private_key(ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
));
933 /* Fix this function so that it takes an optional type parameter */
934 int SSL_check_private_key(const SSL
*ssl
)
938 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,ERR_R_PASSED_NULL_PARAMETER
);
941 if (ssl
->cert
== NULL
)
943 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,SSL_R_NO_CERTIFICATE_ASSIGNED
);
946 if (ssl
->cert
->key
->x509
== NULL
)
948 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,SSL_R_NO_CERTIFICATE_ASSIGNED
);
951 if (ssl
->cert
->key
->privatekey
== NULL
)
953 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
956 return(X509_check_private_key(ssl
->cert
->key
->x509
,
957 ssl
->cert
->key
->privatekey
));
960 int SSL_accept(SSL
*s
)
962 if (s
->handshake_func
== 0)
963 /* Not properly initialized yet */
964 SSL_set_accept_state(s
);
966 return(s
->method
->ssl_accept(s
));
969 int SSL_connect(SSL
*s
)
971 if (s
->handshake_func
== 0)
972 /* Not properly initialized yet */
973 SSL_set_connect_state(s
);
975 return(s
->method
->ssl_connect(s
));
978 long SSL_get_default_timeout(const SSL
*s
)
980 return(s
->method
->get_timeout());
983 int SSL_read(SSL
*s
,void *buf
,int num
)
985 if (s
->handshake_func
== 0)
987 SSLerr(SSL_F_SSL_READ
, SSL_R_UNINITIALIZED
);
991 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
)
993 s
->rwstate
=SSL_NOTHING
;
996 return(s
->method
->ssl_read(s
,buf
,num
));
999 int SSL_peek(SSL
*s
,void *buf
,int num
)
1001 if (s
->handshake_func
== 0)
1003 SSLerr(SSL_F_SSL_PEEK
, SSL_R_UNINITIALIZED
);
1007 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
)
1011 return(s
->method
->ssl_peek(s
,buf
,num
));
1014 int SSL_write(SSL
*s
,const void *buf
,int num
)
1016 if (s
->handshake_func
== 0)
1018 SSLerr(SSL_F_SSL_WRITE
, SSL_R_UNINITIALIZED
);
1022 if (s
->shutdown
& SSL_SENT_SHUTDOWN
)
1024 s
->rwstate
=SSL_NOTHING
;
1025 SSLerr(SSL_F_SSL_WRITE
,SSL_R_PROTOCOL_IS_SHUTDOWN
);
1028 return(s
->method
->ssl_write(s
,buf
,num
));
1031 int SSL_shutdown(SSL
*s
)
1033 /* Note that this function behaves differently from what one might
1034 * expect. Return values are 0 for no success (yet),
1035 * 1 for success; but calling it once is usually not enough,
1036 * even if blocking I/O is used (see ssl3_shutdown).
1039 if (s
->handshake_func
== 0)
1041 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
1045 if ((s
!= NULL
) && !SSL_in_init(s
))
1046 return(s
->method
->ssl_shutdown(s
));
1051 int SSL_renegotiate(SSL
*s
)
1053 if (s
->renegotiate
== 0)
1058 return(s
->method
->ssl_renegotiate(s
));
1061 int SSL_renegotiate_abbreviated(SSL
*s
)
1063 if (s
->renegotiate
== 0)
1068 return(s
->method
->ssl_renegotiate(s
));
1071 int SSL_renegotiate_pending(SSL
*s
)
1073 /* becomes true when negotiation is requested;
1074 * false again once a handshake has finished */
1075 return (s
->renegotiate
!= 0);
1078 long SSL_ctrl(SSL
*s
,int cmd
,long larg
,void *parg
)
1084 case SSL_CTRL_GET_READ_AHEAD
:
1085 return(s
->read_ahead
);
1086 case SSL_CTRL_SET_READ_AHEAD
:
1091 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1092 s
->msg_callback_arg
= parg
;
1095 case SSL_CTRL_OPTIONS
:
1096 return(s
->options
|=larg
);
1097 case SSL_CTRL_CLEAR_OPTIONS
:
1098 return(s
->options
&=~larg
);
1100 return(s
->mode
|=larg
);
1101 case SSL_CTRL_CLEAR_MODE
:
1102 return(s
->mode
&=~larg
);
1103 case SSL_CTRL_GET_MAX_CERT_LIST
:
1104 return(s
->max_cert_list
);
1105 case SSL_CTRL_SET_MAX_CERT_LIST
:
1107 s
->max_cert_list
=larg
;
1109 case SSL_CTRL_SET_MTU
:
1110 #ifndef OPENSSL_NO_DTLS1
1111 if (larg
< (long)dtls1_min_mtu())
1115 if (SSL_version(s
) == DTLS1_VERSION
||
1116 SSL_version(s
) == DTLS1_BAD_VER
)
1122 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
1123 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
1125 s
->max_send_fragment
= larg
;
1127 case SSL_CTRL_GET_RI_SUPPORT
:
1129 return s
->s3
->send_connection_binding
;
1131 case SSL_CTRL_CERT_FLAGS
:
1132 return(s
->cert
->cert_flags
|=larg
);
1133 case SSL_CTRL_CLEAR_CERT_FLAGS
:
1134 return(s
->cert
->cert_flags
&=~larg
);
1136 return(s
->method
->ssl_ctrl(s
,cmd
,larg
,parg
));
1140 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
)(void))
1144 case SSL_CTRL_SET_MSG_CALLBACK
:
1145 s
->msg_callback
= (void (*)(int write_p
, int version
, int content_type
, const void *buf
, size_t len
, SSL
*ssl
, void *arg
))(fp
);
1149 return(s
->method
->ssl_callback_ctrl(s
,cmd
,fp
));
1153 LHASH_OF(SSL_SESSION
) *SSL_CTX_sessions(SSL_CTX
*ctx
)
1155 return ctx
->sessions
;
1158 long SSL_CTX_ctrl(SSL_CTX
*ctx
,int cmd
,long larg
,void *parg
)
1164 case SSL_CTRL_GET_READ_AHEAD
:
1165 return(ctx
->read_ahead
);
1166 case SSL_CTRL_SET_READ_AHEAD
:
1168 ctx
->read_ahead
=larg
;
1171 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1172 ctx
->msg_callback_arg
= parg
;
1175 case SSL_CTRL_GET_MAX_CERT_LIST
:
1176 return(ctx
->max_cert_list
);
1177 case SSL_CTRL_SET_MAX_CERT_LIST
:
1178 l
=ctx
->max_cert_list
;
1179 ctx
->max_cert_list
=larg
;
1182 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
1183 l
=ctx
->session_cache_size
;
1184 ctx
->session_cache_size
=larg
;
1186 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
1187 return(ctx
->session_cache_size
);
1188 case SSL_CTRL_SET_SESS_CACHE_MODE
:
1189 l
=ctx
->session_cache_mode
;
1190 ctx
->session_cache_mode
=larg
;
1192 case SSL_CTRL_GET_SESS_CACHE_MODE
:
1193 return(ctx
->session_cache_mode
);
1195 case SSL_CTRL_SESS_NUMBER
:
1196 return(lh_SSL_SESSION_num_items(ctx
->sessions
));
1197 case SSL_CTRL_SESS_CONNECT
:
1198 return(ctx
->stats
.sess_connect
);
1199 case SSL_CTRL_SESS_CONNECT_GOOD
:
1200 return(ctx
->stats
.sess_connect_good
);
1201 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
1202 return(ctx
->stats
.sess_connect_renegotiate
);
1203 case SSL_CTRL_SESS_ACCEPT
:
1204 return(ctx
->stats
.sess_accept
);
1205 case SSL_CTRL_SESS_ACCEPT_GOOD
:
1206 return(ctx
->stats
.sess_accept_good
);
1207 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
1208 return(ctx
->stats
.sess_accept_renegotiate
);
1209 case SSL_CTRL_SESS_HIT
:
1210 return(ctx
->stats
.sess_hit
);
1211 case SSL_CTRL_SESS_CB_HIT
:
1212 return(ctx
->stats
.sess_cb_hit
);
1213 case SSL_CTRL_SESS_MISSES
:
1214 return(ctx
->stats
.sess_miss
);
1215 case SSL_CTRL_SESS_TIMEOUTS
:
1216 return(ctx
->stats
.sess_timeout
);
1217 case SSL_CTRL_SESS_CACHE_FULL
:
1218 return(ctx
->stats
.sess_cache_full
);
1219 case SSL_CTRL_OPTIONS
:
1220 return(ctx
->options
|=larg
);
1221 case SSL_CTRL_CLEAR_OPTIONS
:
1222 return(ctx
->options
&=~larg
);
1224 return(ctx
->mode
|=larg
);
1225 case SSL_CTRL_CLEAR_MODE
:
1226 return(ctx
->mode
&=~larg
);
1227 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
1228 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
1230 ctx
->max_send_fragment
= larg
;
1232 case SSL_CTRL_CERT_FLAGS
:
1233 return(ctx
->cert
->cert_flags
|=larg
);
1234 case SSL_CTRL_CLEAR_CERT_FLAGS
:
1235 return(ctx
->cert
->cert_flags
&=~larg
);
1237 return(ctx
->method
->ssl_ctx_ctrl(ctx
,cmd
,larg
,parg
));
1241 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
)(void))
1245 case SSL_CTRL_SET_MSG_CALLBACK
:
1246 ctx
->msg_callback
= (void (*)(int write_p
, int version
, int content_type
, const void *buf
, size_t len
, SSL
*ssl
, void *arg
))(fp
);
1250 return(ctx
->method
->ssl_ctx_callback_ctrl(ctx
,cmd
,fp
));
1254 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
1262 return((l
> 0)?1:-1);
1265 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
* const *ap
,
1266 const SSL_CIPHER
* const *bp
)
1270 l
=(*ap
)->id
-(*bp
)->id
;
1274 return((l
> 0)?1:-1);
1277 /** return a STACK of the ciphers available for the SSL and in order of
1279 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
1283 if (s
->cipher_list
!= NULL
)
1285 return(s
->cipher_list
);
1287 else if ((s
->ctx
!= NULL
) &&
1288 (s
->ctx
->cipher_list
!= NULL
))
1290 return(s
->ctx
->cipher_list
);
1296 /** return a STACK of the ciphers available for the SSL and in order of
1298 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
1302 if (s
->cipher_list_by_id
!= NULL
)
1304 return(s
->cipher_list_by_id
);
1306 else if ((s
->ctx
!= NULL
) &&
1307 (s
->ctx
->cipher_list_by_id
!= NULL
))
1309 return(s
->ctx
->cipher_list_by_id
);
1315 /** The old interface to get the same thing as SSL_get_ciphers() */
1316 const char *SSL_get_cipher_list(const SSL
*s
,int n
)
1319 STACK_OF(SSL_CIPHER
) *sk
;
1321 if (s
== NULL
) return(NULL
);
1322 sk
=SSL_get_ciphers(s
);
1323 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
1325 c
=sk_SSL_CIPHER_value(sk
,n
);
1326 if (c
== NULL
) return(NULL
);
1330 /** specify the ciphers to be used by default by the SSL_CTX */
1331 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
1333 STACK_OF(SSL_CIPHER
) *sk
;
1335 sk
=ssl_create_cipher_list(ctx
->method
,&ctx
->cipher_list
,
1336 &ctx
->cipher_list_by_id
,str
, ctx
->cert
);
1337 /* ssl_create_cipher_list may return an empty stack if it
1338 * was unable to find a cipher matching the given rule string
1339 * (for example if the rule string specifies a cipher which
1340 * has been disabled). This is not an error as far as
1341 * ssl_create_cipher_list is concerned, and hence
1342 * ctx->cipher_list and ctx->cipher_list_by_id has been
1346 else if (sk_SSL_CIPHER_num(sk
) == 0)
1348 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
1354 /** specify the ciphers to be used by the SSL */
1355 int SSL_set_cipher_list(SSL
*s
,const char *str
)
1357 STACK_OF(SSL_CIPHER
) *sk
;
1359 sk
=ssl_create_cipher_list(s
->ctx
->method
,&s
->cipher_list
,
1360 &s
->cipher_list_by_id
,str
, s
->cert
);
1361 /* see comment in SSL_CTX_set_cipher_list */
1364 else if (sk_SSL_CIPHER_num(sk
) == 0)
1366 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
1372 /* works well for SSLv2, not so good for SSLv3 */
1373 char *SSL_get_shared_ciphers(const SSL
*s
,char *buf
,int len
)
1376 STACK_OF(SSL_CIPHER
) *sk
;
1380 if ((s
->session
== NULL
) || (s
->session
->ciphers
== NULL
) ||
1385 sk
=s
->session
->ciphers
;
1386 for (i
=0; i
<sk_SSL_CIPHER_num(sk
); i
++)
1390 c
=sk_SSL_CIPHER_value(sk
,i
);
1408 int ssl_cipher_list_to_bytes(SSL
*s
,STACK_OF(SSL_CIPHER
) *sk
,unsigned char *p
,
1409 int (*put_cb
)(const SSL_CIPHER
*, unsigned char *))
1415 /* Set disabled masks for this session */
1416 ssl_set_client_disabled(s
);
1418 if (sk
== NULL
) return(0);
1421 for (i
=0; i
<sk_SSL_CIPHER_num(sk
); i
++)
1423 c
=sk_SSL_CIPHER_value(sk
,i
);
1424 /* Skip disabled ciphers */
1425 if (c
->algorithm_ssl
& ct
->mask_ssl
||
1426 c
->algorithm_mkey
& ct
->mask_k
||
1427 c
->algorithm_auth
& ct
->mask_a
)
1429 j
= put_cb
? put_cb(c
,p
) : ssl_put_cipher_by_char(s
,c
,p
);
1432 /* If p == q, no ciphers and caller indicates an error. Otherwise
1433 * add SCSV if not renegotiating.
1435 if (p
!= q
&& !s
->renegotiate
)
1437 static SSL_CIPHER scsv
=
1439 0, NULL
, SSL3_CK_SCSV
, 0, 0, 0, 0, 0, 0, 0, 0, 0
1441 j
= put_cb
? put_cb(&scsv
,p
) : ssl_put_cipher_by_char(s
,&scsv
,p
);
1443 #ifdef OPENSSL_RI_DEBUG
1444 fprintf(stderr
, "SCSV sent by client\n");
1451 STACK_OF(SSL_CIPHER
) *ssl_bytes_to_cipher_list(SSL
*s
,unsigned char *p
,int num
,
1452 STACK_OF(SSL_CIPHER
) **skp
)
1454 const SSL_CIPHER
*c
;
1455 STACK_OF(SSL_CIPHER
) *sk
;
1458 s
->s3
->send_connection_binding
= 0;
1460 n
=ssl_put_cipher_by_char(s
,NULL
,NULL
);
1463 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
1466 if ((skp
== NULL
) || (*skp
== NULL
))
1467 sk
=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1471 sk_SSL_CIPHER_zero(sk
);
1474 for (i
=0; i
<num
; i
+=n
)
1476 /* Check for SCSV */
1477 if (s
->s3
&& (n
!= 3 || !p
[0]) &&
1478 (p
[n
-2] == ((SSL3_CK_SCSV
>> 8) & 0xff)) &&
1479 (p
[n
-1] == (SSL3_CK_SCSV
& 0xff)))
1481 /* SCSV fatal if renegotiating */
1484 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING
);
1485 ssl3_send_alert(s
,SSL3_AL_FATAL
,SSL_AD_HANDSHAKE_FAILURE
);
1488 s
->s3
->send_connection_binding
= 1;
1490 #ifdef OPENSSL_RI_DEBUG
1491 fprintf(stderr
, "SCSV received by server\n");
1496 c
=ssl_get_cipher_by_char(s
,p
);
1500 if (!sk_SSL_CIPHER_push(sk
,c
))
1502 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,ERR_R_MALLOC_FAILURE
);
1512 if ((skp
== NULL
) || (*skp
== NULL
))
1513 sk_SSL_CIPHER_free(sk
);
1518 #ifndef OPENSSL_NO_TLSEXT
1519 /** return a servername extension value if provided in Client Hello, or NULL.
1520 * So far, only host_name types are defined (RFC 3546).
1523 const char *SSL_get_servername(const SSL
*s
, const int type
)
1525 if (type
!= TLSEXT_NAMETYPE_host_name
)
1528 return s
->session
&& !s
->tlsext_hostname
?
1529 s
->session
->tlsext_hostname
:
1533 int SSL_get_servername_type(const SSL
*s
)
1535 if (s
->session
&& (!s
->tlsext_hostname
? s
->session
->tlsext_hostname
: s
->tlsext_hostname
))
1536 return TLSEXT_NAMETYPE_host_name
;
1540 # ifndef OPENSSL_NO_NEXTPROTONEG
1541 /* SSL_select_next_proto implements the standard protocol selection. It is
1542 * expected that this function is called from the callback set by
1543 * SSL_CTX_set_next_proto_select_cb.
1545 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte
1546 * strings. The length byte itself is not included in the length. A byte
1547 * string of length 0 is invalid. No byte string may be truncated.
1549 * The current, but experimental algorithm for selecting the protocol is:
1551 * 1) If the server doesn't support NPN then this is indicated to the
1552 * callback. In this case, the client application has to abort the connection
1553 * or have a default application level protocol.
1555 * 2) If the server supports NPN, but advertises an empty list then the
1556 * client selects the first protcol in its list, but indicates via the
1557 * API that this fallback case was enacted.
1559 * 3) Otherwise, the client finds the first protocol in the server's list
1560 * that it supports and selects this protocol. This is because it's
1561 * assumed that the server has better information about which protocol
1562 * a client should use.
1564 * 4) If the client doesn't support any of the server's advertised
1565 * protocols, then this is treated the same as case 2.
1568 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or
1569 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1571 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
)
1574 const unsigned char *result
;
1575 int status
= OPENSSL_NPN_UNSUPPORTED
;
1577 /* For each protocol in server preference order, see if we support it. */
1578 for (i
= 0; i
< server_len
; )
1580 for (j
= 0; j
< client_len
; )
1582 if (server
[i
] == client
[j
] &&
1583 memcmp(&server
[i
+1], &client
[j
+1], server
[i
]) == 0)
1585 /* We found a match */
1586 result
= &server
[i
];
1587 status
= OPENSSL_NPN_NEGOTIATED
;
1597 /* There's no overlap between our protocols and the server's list. */
1599 status
= OPENSSL_NPN_NO_OVERLAP
;
1602 *out
= (unsigned char *) result
+ 1;
1603 *outlen
= result
[0];
1607 /* SSL_get0_next_proto_negotiated sets *data and *len to point to the client's
1608 * requested protocol for this connection and returns 0. If the client didn't
1609 * request any protocol, then *data is set to NULL.
1611 * Note that the client can request any protocol it chooses. The value returned
1612 * from this function need not be a member of the list of supported protocols
1613 * provided by the callback.
1615 void SSL_get0_next_proto_negotiated(const SSL
*s
, const unsigned char **data
, unsigned *len
)
1617 *data
= s
->next_proto_negotiated
;
1621 *len
= s
->next_proto_negotiated_len
;
1625 /* SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when a
1626 * TLS server needs a list of supported protocols for Next Protocol
1627 * Negotiation. The returned list must be in wire format. The list is returned
1628 * by setting |out| to point to it and |outlen| to its length. This memory will
1629 * not be modified, but one should assume that the SSL* keeps a reference to
1632 * The callback should return SSL_TLSEXT_ERR_OK if it wishes to advertise. Otherwise, no
1633 * such extension will be included in the ServerHello. */
1634 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
)
1636 ctx
->next_protos_advertised_cb
= cb
;
1637 ctx
->next_protos_advertised_cb_arg
= arg
;
1640 /* SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1641 * client needs to select a protocol from the server's provided list. |out|
1642 * must be set to point to the selected protocol (which may be within |in|).
1643 * The length of the protocol name must be written into |outlen|. The server's
1644 * advertised protocols are provided in |in| and |inlen|. The callback can
1645 * assume that |in| is syntactically valid.
1647 * The client must select a protocol. It is fatal to the connection if this
1648 * callback returns a value other than SSL_TLSEXT_ERR_OK.
1650 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
)
1652 ctx
->next_proto_select_cb
= cb
;
1653 ctx
->next_proto_select_cb_arg
= arg
;
1658 int SSL_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
1659 const char *label
, size_t llen
, const unsigned char *p
, size_t plen
,
1662 if (s
->version
< TLS1_VERSION
)
1665 return s
->method
->ssl3_enc
->export_keying_material(s
, out
, olen
, label
,
1670 static unsigned long ssl_session_hash(const SSL_SESSION
*a
)
1675 ((unsigned int) a
->session_id
[0] )|
1676 ((unsigned int) a
->session_id
[1]<< 8L)|
1677 ((unsigned long)a
->session_id
[2]<<16L)|
1678 ((unsigned long)a
->session_id
[3]<<24L);
1682 /* NB: If this function (or indeed the hash function which uses a sort of
1683 * coarser function than this one) is changed, ensure
1684 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1685 * able to construct an SSL_SESSION that will collide with any existing session
1686 * with a matching session ID. */
1687 static int ssl_session_cmp(const SSL_SESSION
*a
,const SSL_SESSION
*b
)
1689 if (a
->ssl_version
!= b
->ssl_version
)
1691 if (a
->session_id_length
!= b
->session_id_length
)
1693 return(memcmp(a
->session_id
,b
->session_id
,a
->session_id_length
));
1696 /* These wrapper functions should remain rather than redeclaring
1697 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1698 * variable. The reason is that the functions aren't static, they're exposed via
1700 static IMPLEMENT_LHASH_HASH_FN(ssl_session
, SSL_SESSION
)
1701 static IMPLEMENT_LHASH_COMP_FN(ssl_session
, SSL_SESSION
)
1703 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
1709 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_NULL_SSL_METHOD_PASSED
);
1714 if (FIPS_mode() && (meth
->version
< TLS1_VERSION
))
1716 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE
);
1721 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1723 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
1726 ret
=(SSL_CTX
*)OPENSSL_malloc(sizeof(SSL_CTX
));
1730 memset(ret
,0,sizeof(SSL_CTX
));
1734 ret
->cert_store
=NULL
;
1735 ret
->session_cache_mode
=SSL_SESS_CACHE_SERVER
;
1736 ret
->session_cache_size
=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
1737 ret
->session_cache_head
=NULL
;
1738 ret
->session_cache_tail
=NULL
;
1740 /* We take the system default */
1741 ret
->session_timeout
=meth
->get_timeout();
1743 ret
->new_session_cb
=0;
1744 ret
->remove_session_cb
=0;
1745 ret
->get_session_cb
=0;
1746 ret
->generate_session_id
=0;
1748 memset((char *)&ret
->stats
,0,sizeof(ret
->stats
));
1751 ret
->quiet_shutdown
=0;
1753 /* ret->cipher=NULL;*/
1754 /* ret->s2->challenge=NULL;
1755 ret->master_key=NULL;
1757 ret->s2->conn_id=NULL; */
1759 ret
->info_callback
=NULL
;
1761 ret
->app_verify_callback
=0;
1762 ret
->app_verify_arg
=NULL
;
1764 ret
->max_cert_list
=SSL_MAX_CERT_LIST_DEFAULT
;
1766 ret
->msg_callback
=0;
1767 ret
->msg_callback_arg
=NULL
;
1768 ret
->verify_mode
=SSL_VERIFY_NONE
;
1770 ret
->verify_depth
=-1; /* Don't impose a limit (but x509_lu.c does) */
1772 ret
->sid_ctx_length
=0;
1773 ret
->default_verify_callback
=NULL
;
1774 if ((ret
->cert
=ssl_cert_new()) == NULL
)
1777 ret
->default_passwd_callback
=0;
1778 ret
->default_passwd_callback_userdata
=NULL
;
1779 ret
->client_cert_cb
=0;
1780 ret
->app_gen_cookie_cb
=0;
1781 ret
->app_verify_cookie_cb
=0;
1783 ret
->sessions
=lh_SSL_SESSION_new();
1784 if (ret
->sessions
== NULL
) goto err
;
1785 ret
->cert_store
=X509_STORE_new();
1786 if (ret
->cert_store
== NULL
) goto err
;
1788 ssl_create_cipher_list(ret
->method
,
1789 &ret
->cipher_list
,&ret
->cipher_list_by_id
,
1790 meth
->version
== SSL2_VERSION
? "SSLv2" : SSL_DEFAULT_CIPHER_LIST
, ret
->cert
);
1791 if (ret
->cipher_list
== NULL
1792 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0)
1794 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_LIBRARY_HAS_NO_CIPHERS
);
1798 ret
->param
= X509_VERIFY_PARAM_new();
1802 if ((ret
->rsa_md5
=EVP_get_digestbyname("ssl2-md5")) == NULL
)
1804 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES
);
1807 if ((ret
->md5
=EVP_get_digestbyname("ssl3-md5")) == NULL
)
1809 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
1812 if ((ret
->sha1
=EVP_get_digestbyname("ssl3-sha1")) == NULL
)
1814 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
1818 if ((ret
->client_CA
=sk_X509_NAME_new_null()) == NULL
)
1821 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
);
1823 ret
->extra_certs
=NULL
;
1824 ret
->comp_methods
=SSL_COMP_get_compression_methods();
1826 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
1828 #ifndef OPENSSL_NO_TLSEXT
1829 ret
->tlsext_servername_callback
= 0;
1830 ret
->tlsext_servername_arg
= NULL
;
1831 /* Setup RFC4507 ticket keys */
1832 if ((RAND_pseudo_bytes(ret
->tlsext_tick_key_name
, 16) <= 0)
1833 || (RAND_bytes(ret
->tlsext_tick_hmac_key
, 16) <= 0)
1834 || (RAND_bytes(ret
->tlsext_tick_aes_key
, 16) <= 0))
1835 ret
->options
|= SSL_OP_NO_TICKET
;
1837 ret
->tlsext_status_cb
= 0;
1838 ret
->tlsext_status_arg
= NULL
;
1840 # ifndef OPENSSL_NO_NEXTPROTONEG
1841 ret
->next_protos_advertised_cb
= 0;
1842 ret
->next_proto_select_cb
= 0;
1845 #ifndef OPENSSL_NO_PSK
1846 ret
->psk_identity_hint
=NULL
;
1847 ret
->psk_client_callback
=NULL
;
1848 ret
->psk_server_callback
=NULL
;
1850 #ifndef OPENSSL_NO_SRP
1851 SSL_CTX_SRP_CTX_init(ret
);
1853 #ifndef OPENSSL_NO_BUF_FREELISTS
1854 ret
->freelist_max_len
= SSL_MAX_BUF_FREELIST_LEN_DEFAULT
;
1855 ret
->rbuf_freelist
= OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST
));
1856 if (!ret
->rbuf_freelist
)
1858 ret
->rbuf_freelist
->chunklen
= 0;
1859 ret
->rbuf_freelist
->len
= 0;
1860 ret
->rbuf_freelist
->head
= NULL
;
1861 ret
->wbuf_freelist
= OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST
));
1862 if (!ret
->wbuf_freelist
)
1864 OPENSSL_free(ret
->rbuf_freelist
);
1867 ret
->wbuf_freelist
->chunklen
= 0;
1868 ret
->wbuf_freelist
->len
= 0;
1869 ret
->wbuf_freelist
->head
= NULL
;
1871 #ifndef OPENSSL_NO_ENGINE
1872 ret
->client_cert_engine
= NULL
;
1873 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1874 #define eng_strx(x) #x
1875 #define eng_str(x) eng_strx(x)
1876 /* Use specific client engine automatically... ignore errors */
1879 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
1883 ENGINE_load_builtin_engines();
1884 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
1886 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
1891 /* Default is to connect to non-RI servers. When RI is more widely
1892 * deployed might change this.
1894 ret
->options
|= SSL_OP_LEGACY_SERVER_CONNECT
;
1898 SSLerr(SSL_F_SSL_CTX_NEW
,ERR_R_MALLOC_FAILURE
);
1900 if (ret
!= NULL
) SSL_CTX_free(ret
);
1905 static void SSL_COMP_free(SSL_COMP
*comp
)
1906 { OPENSSL_free(comp
); }
1909 #ifndef OPENSSL_NO_BUF_FREELISTS
1911 ssl_buf_freelist_free(SSL3_BUF_FREELIST
*list
)
1913 SSL3_BUF_FREELIST_ENTRY
*ent
, *next
;
1914 for (ent
= list
->head
; ent
; ent
= next
)
1923 void SSL_CTX_free(SSL_CTX
*a
)
1927 if (a
== NULL
) return;
1929 i
=CRYPTO_add(&a
->references
,-1,CRYPTO_LOCK_SSL_CTX
);
1931 REF_PRINT("SSL_CTX",a
);
1937 fprintf(stderr
,"SSL_CTX_free, bad reference count\n");
1943 X509_VERIFY_PARAM_free(a
->param
);
1946 * Free internal session cache. However: the remove_cb() may reference
1947 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1948 * after the sessions were flushed.
1949 * As the ex_data handling routines might also touch the session cache,
1950 * the most secure solution seems to be: empty (flush) the cache, then
1951 * free ex_data, then finally free the cache.
1952 * (See ticket [openssl.org #212].)
1954 if (a
->sessions
!= NULL
)
1955 SSL_CTX_flush_sessions(a
,0);
1957 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
1959 if (a
->sessions
!= NULL
)
1960 lh_SSL_SESSION_free(a
->sessions
);
1962 if (a
->cert_store
!= NULL
)
1963 X509_STORE_free(a
->cert_store
);
1964 if (a
->cipher_list
!= NULL
)
1965 sk_SSL_CIPHER_free(a
->cipher_list
);
1966 if (a
->cipher_list_by_id
!= NULL
)
1967 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
1968 if (a
->cert
!= NULL
)
1969 ssl_cert_free(a
->cert
);
1970 if (a
->client_CA
!= NULL
)
1971 sk_X509_NAME_pop_free(a
->client_CA
,X509_NAME_free
);
1972 if (a
->extra_certs
!= NULL
)
1973 sk_X509_pop_free(a
->extra_certs
,X509_free
);
1974 #if 0 /* This should never be done, since it removes a global database */
1975 if (a
->comp_methods
!= NULL
)
1976 sk_SSL_COMP_pop_free(a
->comp_methods
,SSL_COMP_free
);
1978 a
->comp_methods
= NULL
;
1981 if (a
->srtp_profiles
)
1982 sk_SRTP_PROTECTION_PROFILE_free(a
->srtp_profiles
);
1984 #ifndef OPENSSL_NO_PSK
1985 if (a
->psk_identity_hint
)
1986 OPENSSL_free(a
->psk_identity_hint
);
1988 #ifndef OPENSSL_NO_SRP
1989 SSL_CTX_SRP_CTX_free(a
);
1991 #ifndef OPENSSL_NO_ENGINE
1992 if (a
->client_cert_engine
)
1993 ENGINE_finish(a
->client_cert_engine
);
1996 #ifndef OPENSSL_NO_BUF_FREELISTS
1997 if (a
->wbuf_freelist
)
1998 ssl_buf_freelist_free(a
->wbuf_freelist
);
1999 if (a
->rbuf_freelist
)
2000 ssl_buf_freelist_free(a
->rbuf_freelist
);
2002 #ifndef OPENSSL_NO_TLSEXT
2003 # ifndef OPENSSL_NO_EC
2004 if (a
->tlsext_ecpointformatlist
)
2005 OPENSSL_free(a
->tlsext_ecpointformatlist
);
2006 if (a
->tlsext_ellipticcurvelist
)
2007 OPENSSL_free(a
->tlsext_ellipticcurvelist
);
2008 # endif /* OPENSSL_NO_EC */
2014 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
2016 ctx
->default_passwd_callback
=cb
;
2019 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
,void *u
)
2021 ctx
->default_passwd_callback_userdata
=u
;
2024 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
, int (*cb
)(X509_STORE_CTX
*,void *), void *arg
)
2026 ctx
->app_verify_callback
=cb
;
2027 ctx
->app_verify_arg
=arg
;
2030 void SSL_CTX_set_verify(SSL_CTX
*ctx
,int mode
,int (*cb
)(int, X509_STORE_CTX
*))
2032 ctx
->verify_mode
=mode
;
2033 ctx
->default_verify_callback
=cb
;
2036 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
,int depth
)
2038 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
2041 void SSL_CTX_set_cert_cb(SSL_CTX
*c
, int (*cb
)(SSL
*ssl
, void *arg
), void *arg
)
2043 ssl_cert_set_cert_cb(c
->cert
, cb
, arg
);
2046 void SSL_set_cert_cb(SSL
*s
, int (*cb
)(SSL
*ssl
, void *arg
), void *arg
)
2048 ssl_cert_set_cert_cb(s
->cert
, cb
, arg
);
2051 void ssl_set_cert_masks(CERT
*c
, const SSL_CIPHER
*cipher
)
2054 int rsa_enc
,rsa_tmp
,rsa_sign
,dh_tmp
,dh_rsa
,dh_dsa
,dsa_sign
;
2055 int rsa_enc_export
,dh_rsa_export
,dh_dsa_export
;
2056 int rsa_tmp_export
,dh_tmp_export
,kl
;
2057 unsigned long mask_k
,mask_a
,emask_k
,emask_a
;
2058 int have_ecc_cert
, ecdh_ok
, ecdsa_ok
, ecc_pkey_size
;
2059 #ifndef OPENSSL_NO_ECDH
2063 EVP_PKEY
*ecc_pkey
= NULL
;
2064 int signature_nid
= 0, pk_nid
= 0, md_nid
= 0;
2066 if (c
== NULL
) return;
2068 kl
=SSL_C_EXPORT_PKEYLENGTH(cipher
);
2070 #ifndef OPENSSL_NO_RSA
2071 rsa_tmp
=(c
->rsa_tmp
!= NULL
|| c
->rsa_tmp_cb
!= NULL
);
2072 rsa_tmp_export
=(c
->rsa_tmp_cb
!= NULL
||
2073 (rsa_tmp
&& RSA_size(c
->rsa_tmp
)*8 <= kl
));
2075 rsa_tmp
=rsa_tmp_export
=0;
2077 #ifndef OPENSSL_NO_DH
2078 dh_tmp
=(c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
);
2079 dh_tmp_export
=(c
->dh_tmp_cb
!= NULL
||
2080 (dh_tmp
&& DH_size(c
->dh_tmp
)*8 <= kl
));
2082 dh_tmp
=dh_tmp_export
=0;
2085 #ifndef OPENSSL_NO_ECDH
2086 have_ecdh_tmp
=(c
->ecdh_tmp
|| c
->ecdh_tmp_cb
|| c
->ecdh_tmp_auto
);
2088 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_ENC
]);
2089 rsa_enc
= cpk
->valid_flags
& CERT_PKEY_VALID
;
2090 rsa_enc_export
=(rsa_enc
&& EVP_PKEY_size(cpk
->privatekey
)*8 <= kl
);
2091 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_SIGN
]);
2092 rsa_sign
= cpk
->valid_flags
& CERT_PKEY_SIGN
;
2093 cpk
= &(c
->pkeys
[SSL_PKEY_DSA_SIGN
]);
2094 dsa_sign
= cpk
->valid_flags
& CERT_PKEY_SIGN
;
2095 cpk
= &(c
->pkeys
[SSL_PKEY_DH_RSA
]);
2096 dh_rsa
= cpk
->valid_flags
& CERT_PKEY_VALID
;
2097 dh_rsa_export
=(dh_rsa
&& EVP_PKEY_size(cpk
->privatekey
)*8 <= kl
);
2098 cpk
= &(c
->pkeys
[SSL_PKEY_DH_DSA
]);
2099 /* FIX THIS EAY EAY EAY */
2100 dh_dsa
= cpk
->valid_flags
& CERT_PKEY_VALID
;
2101 dh_dsa_export
=(dh_dsa
&& EVP_PKEY_size(cpk
->privatekey
)*8 <= kl
);
2102 cpk
= &(c
->pkeys
[SSL_PKEY_ECC
]);
2103 have_ecc_cert
= cpk
->valid_flags
& CERT_PKEY_VALID
;
2112 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2113 rsa_tmp
,rsa_tmp_export
,dh_tmp
,have_ecdh_tmp
,
2114 rsa_enc
,rsa_enc_export
,rsa_sign
,dsa_sign
,dh_rsa
,dh_dsa
);
2117 cpk
= &(c
->pkeys
[SSL_PKEY_GOST01
]);
2118 if (cpk
->x509
!= NULL
&& cpk
->privatekey
!=NULL
) {
2119 mask_k
|= SSL_kGOST
;
2120 mask_a
|= SSL_aGOST01
;
2122 cpk
= &(c
->pkeys
[SSL_PKEY_GOST94
]);
2123 if (cpk
->x509
!= NULL
&& cpk
->privatekey
!=NULL
) {
2124 mask_k
|= SSL_kGOST
;
2125 mask_a
|= SSL_aGOST94
;
2128 if (rsa_enc
|| (rsa_tmp
&& rsa_sign
))
2130 if (rsa_enc_export
|| (rsa_tmp_export
&& (rsa_sign
|| rsa_enc
)))
2134 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
2135 if ( (dh_tmp
|| dh_rsa
|| dh_dsa
) &&
2136 (rsa_enc
|| rsa_sign
|| dsa_sign
))
2138 if ((dh_tmp_export
|| dh_rsa_export
|| dh_dsa_export
) &&
2139 (rsa_enc
|| rsa_sign
|| dsa_sign
))
2149 if (dh_rsa
) mask_k
|=SSL_kDHr
;
2150 if (dh_rsa_export
) emask_k
|=SSL_kDHr
;
2152 if (dh_dsa
) mask_k
|=SSL_kDHd
;
2153 if (dh_dsa_export
) emask_k
|=SSL_kDHd
;
2155 if (emask_k
& (SSL_kDHr
|SSL_kDHd
))
2158 if (rsa_enc
|| rsa_sign
)
2173 #ifndef OPENSSL_NO_KRB5
2180 /* An ECC certificate may be usable for ECDH and/or
2181 * ECDSA cipher suites depending on the key usage extension.
2185 cpk
= &c
->pkeys
[SSL_PKEY_ECC
];
2187 /* This call populates extension flags (ex_flags) */
2188 X509_check_purpose(x
, -1, 0);
2189 ecdh_ok
= (x
->ex_flags
& EXFLAG_KUSAGE
) ?
2190 (x
->ex_kusage
& X509v3_KU_KEY_AGREEMENT
) : 1;
2191 ecdsa_ok
= (x
->ex_flags
& EXFLAG_KUSAGE
) ?
2192 (x
->ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
) : 1;
2193 if (!(cpk
->valid_flags
& CERT_PKEY_SIGN
))
2195 ecc_pkey
= X509_get_pubkey(x
);
2196 ecc_pkey_size
= (ecc_pkey
!= NULL
) ?
2197 EVP_PKEY_bits(ecc_pkey
) : 0;
2198 EVP_PKEY_free(ecc_pkey
);
2199 if ((x
->sig_alg
) && (x
->sig_alg
->algorithm
))
2201 signature_nid
= OBJ_obj2nid(x
->sig_alg
->algorithm
);
2202 OBJ_find_sigid_algs(signature_nid
, &md_nid
, &pk_nid
);
2204 #ifndef OPENSSL_NO_ECDH
2208 if (pk_nid
== NID_rsaEncryption
|| pk_nid
== NID_rsa
)
2212 if (ecc_pkey_size
<= 163)
2214 emask_k
|=SSL_kECDHr
;
2219 if (pk_nid
== NID_X9_62_id_ecPublicKey
)
2223 if (ecc_pkey_size
<= 163)
2225 emask_k
|=SSL_kECDHe
;
2231 #ifndef OPENSSL_NO_ECDSA
2235 emask_a
|=SSL_aECDSA
;
2240 #ifndef OPENSSL_NO_ECDH
2244 emask_k
|=SSL_kEECDH
;
2248 #ifndef OPENSSL_NO_PSK
2251 emask_k
|= SSL_kPSK
;
2252 emask_a
|= SSL_aPSK
;
2257 c
->export_mask_k
=emask_k
;
2258 c
->export_mask_a
=emask_a
;
2262 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2263 #define ku_reject(x, usage) \
2264 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2266 #ifndef OPENSSL_NO_EC
2268 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL
*s
)
2270 unsigned long alg_k
, alg_a
;
2271 EVP_PKEY
*pkey
= NULL
;
2273 int signature_nid
= 0, md_nid
= 0, pk_nid
= 0;
2274 const SSL_CIPHER
*cs
= s
->s3
->tmp
.new_cipher
;
2276 alg_k
= cs
->algorithm_mkey
;
2277 alg_a
= cs
->algorithm_auth
;
2279 if (SSL_C_IS_EXPORT(cs
))
2281 /* ECDH key length in export ciphers must be <= 163 bits */
2282 pkey
= X509_get_pubkey(x
);
2283 if (pkey
== NULL
) return 0;
2284 keysize
= EVP_PKEY_bits(pkey
);
2285 EVP_PKEY_free(pkey
);
2286 if (keysize
> 163) return 0;
2289 /* This call populates the ex_flags field correctly */
2290 X509_check_purpose(x
, -1, 0);
2291 if ((x
->sig_alg
) && (x
->sig_alg
->algorithm
))
2293 signature_nid
= OBJ_obj2nid(x
->sig_alg
->algorithm
);
2294 OBJ_find_sigid_algs(signature_nid
, &md_nid
, &pk_nid
);
2296 if (alg_k
& SSL_kECDHe
|| alg_k
& SSL_kECDHr
)
2298 /* key usage, if present, must allow key agreement */
2299 if (ku_reject(x
, X509v3_KU_KEY_AGREEMENT
))
2301 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT
);
2304 if ((alg_k
& SSL_kECDHe
) && TLS1_get_version(s
) < TLS1_2_VERSION
)
2306 /* signature alg must be ECDSA */
2307 if (pk_nid
!= NID_X9_62_id_ecPublicKey
)
2309 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE
);
2313 if ((alg_k
& SSL_kECDHr
) && TLS1_get_version(s
) < TLS1_2_VERSION
)
2315 /* signature alg must be RSA */
2317 if (pk_nid
!= NID_rsaEncryption
&& pk_nid
!= NID_rsa
)
2319 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE
);
2324 if (alg_a
& SSL_aECDSA
)
2326 /* key usage, if present, must allow signing */
2327 if (ku_reject(x
, X509v3_KU_DIGITAL_SIGNATURE
))
2329 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
, SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
2334 return 1; /* all checks are ok */
2339 static int ssl_get_server_cert_index(SSL
*s
)
2342 idx
= ssl_cipher_get_cert_index(s
->s3
->tmp
.new_cipher
);
2343 if (idx
== SSL_PKEY_RSA_ENC
&& !s
->cert
->pkeys
[SSL_PKEY_RSA_ENC
].x509
)
2344 idx
= SSL_PKEY_RSA_SIGN
;
2346 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX
,ERR_R_INTERNAL_ERROR
);
2350 CERT_PKEY
*ssl_get_server_send_pkey(SSL
*s
)
2356 ssl_set_cert_masks(c
, s
->s3
->tmp
.new_cipher
);
2358 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2359 /* Broken protocol test: return last used certificate: which may
2360 * mismatch the one expected.
2362 if (c
->cert_flags
& SSL_CERT_FLAG_BROKEN_PROTCOL
)
2366 i
= ssl_get_server_cert_index(s
);
2368 /* This may or may not be an error. */
2373 return &c
->pkeys
[i
];
2376 EVP_PKEY
*ssl_get_sign_pkey(SSL
*s
,const SSL_CIPHER
*cipher
, const EVP_MD
**pmd
)
2378 unsigned long alg_a
;
2382 alg_a
= cipher
->algorithm_auth
;
2385 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2386 /* Broken protocol test: use last key: which may
2387 * mismatch the one expected.
2389 if (c
->cert_flags
& SSL_CERT_FLAG_BROKEN_PROTCOL
)
2390 idx
= c
->key
- c
->pkeys
;
2394 if ((alg_a
& SSL_aDSS
) &&
2395 (c
->pkeys
[SSL_PKEY_DSA_SIGN
].privatekey
!= NULL
))
2396 idx
= SSL_PKEY_DSA_SIGN
;
2397 else if (alg_a
& SSL_aRSA
)
2399 if (c
->pkeys
[SSL_PKEY_RSA_SIGN
].privatekey
!= NULL
)
2400 idx
= SSL_PKEY_RSA_SIGN
;
2401 else if (c
->pkeys
[SSL_PKEY_RSA_ENC
].privatekey
!= NULL
)
2402 idx
= SSL_PKEY_RSA_ENC
;
2404 else if ((alg_a
& SSL_aECDSA
) &&
2405 (c
->pkeys
[SSL_PKEY_ECC
].privatekey
!= NULL
))
2409 SSLerr(SSL_F_SSL_GET_SIGN_PKEY
,ERR_R_INTERNAL_ERROR
);
2413 *pmd
= c
->pkeys
[idx
].digest
;
2414 return c
->pkeys
[idx
].privatekey
;
2417 #ifndef OPENSSL_NO_TLSEXT
2418 unsigned char *ssl_get_authz_data(SSL
*s
, size_t *authz_length
)
2424 i
= ssl_get_server_cert_index(s
);
2430 if (c
->pkeys
[i
].authz
== NULL
)
2432 *authz_length
= c
->pkeys
[i
].authz_length
;
2434 return c
->pkeys
[i
].authz
;
2438 void ssl_update_cache(SSL
*s
,int mode
)
2442 /* If the session_id_length is 0, we are not supposed to cache it,
2443 * and it would be rather hard to do anyway :-) */
2444 if (s
->session
->session_id_length
== 0) return;
2446 i
=s
->session_ctx
->session_cache_mode
;
2447 if ((i
& mode
) && (!s
->hit
)
2448 && ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
)
2449 || SSL_CTX_add_session(s
->session_ctx
,s
->session
))
2450 && (s
->session_ctx
->new_session_cb
!= NULL
))
2452 CRYPTO_add(&s
->session
->references
,1,CRYPTO_LOCK_SSL_SESSION
);
2453 if (!s
->session_ctx
->new_session_cb(s
,s
->session
))
2454 SSL_SESSION_free(s
->session
);
2457 /* auto flush every 255 connections */
2458 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) &&
2459 ((i
& mode
) == mode
))
2461 if ( (((mode
& SSL_SESS_CACHE_CLIENT
)
2462 ?s
->session_ctx
->stats
.sess_connect_good
2463 :s
->session_ctx
->stats
.sess_accept_good
) & 0xff) == 0xff)
2465 SSL_CTX_flush_sessions(s
->session_ctx
,(unsigned long)time(NULL
));
2470 const SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
2475 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
2480 if (s
->method
!= meth
)
2482 if (s
->handshake_func
!= NULL
)
2483 conn
=(s
->handshake_func
== s
->method
->ssl_connect
);
2485 if (s
->method
->version
== meth
->version
)
2489 s
->method
->ssl_free(s
);
2491 ret
=s
->method
->ssl_new(s
);
2495 s
->handshake_func
=meth
->ssl_connect
;
2497 s
->handshake_func
=meth
->ssl_accept
;
2502 int SSL_get_error(const SSL
*s
,int i
)
2508 if (i
> 0) return(SSL_ERROR_NONE
);
2510 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2511 * etc, where we do encode the error */
2512 if ((l
=ERR_peek_error()) != 0)
2514 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
2515 return(SSL_ERROR_SYSCALL
);
2517 return(SSL_ERROR_SSL
);
2520 if ((i
< 0) && SSL_want_read(s
))
2522 bio
=SSL_get_rbio(s
);
2523 if (BIO_should_read(bio
))
2524 return(SSL_ERROR_WANT_READ
);
2525 else if (BIO_should_write(bio
))
2526 /* This one doesn't make too much sense ... We never try
2527 * to write to the rbio, and an application program where
2528 * rbio and wbio are separate couldn't even know what it
2530 * However if we ever set s->rwstate incorrectly
2531 * (so that we have SSL_want_read(s) instead of
2532 * SSL_want_write(s)) and rbio and wbio *are* the same,
2533 * this test works around that bug; so it might be safer
2535 return(SSL_ERROR_WANT_WRITE
);
2536 else if (BIO_should_io_special(bio
))
2538 reason
=BIO_get_retry_reason(bio
);
2539 if (reason
== BIO_RR_CONNECT
)
2540 return(SSL_ERROR_WANT_CONNECT
);
2541 else if (reason
== BIO_RR_ACCEPT
)
2542 return(SSL_ERROR_WANT_ACCEPT
);
2544 return(SSL_ERROR_SYSCALL
); /* unknown */
2548 if ((i
< 0) && SSL_want_write(s
))
2550 bio
=SSL_get_wbio(s
);
2551 if (BIO_should_write(bio
))
2552 return(SSL_ERROR_WANT_WRITE
);
2553 else if (BIO_should_read(bio
))
2554 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2555 return(SSL_ERROR_WANT_READ
);
2556 else if (BIO_should_io_special(bio
))
2558 reason
=BIO_get_retry_reason(bio
);
2559 if (reason
== BIO_RR_CONNECT
)
2560 return(SSL_ERROR_WANT_CONNECT
);
2561 else if (reason
== BIO_RR_ACCEPT
)
2562 return(SSL_ERROR_WANT_ACCEPT
);
2564 return(SSL_ERROR_SYSCALL
);
2567 if ((i
< 0) && SSL_want_x509_lookup(s
))
2569 return(SSL_ERROR_WANT_X509_LOOKUP
);
2574 if (s
->version
== SSL2_VERSION
)
2576 /* assume it is the socket being closed */
2577 return(SSL_ERROR_ZERO_RETURN
);
2581 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
2582 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
2583 return(SSL_ERROR_ZERO_RETURN
);
2586 return(SSL_ERROR_SYSCALL
);
2589 int SSL_do_handshake(SSL
*s
)
2593 if (s
->handshake_func
== NULL
)
2595 SSLerr(SSL_F_SSL_DO_HANDSHAKE
,SSL_R_CONNECTION_TYPE_NOT_SET
);
2599 s
->method
->ssl_renegotiate_check(s
);
2601 if (SSL_in_init(s
) || SSL_in_before(s
))
2603 ret
=s
->handshake_func(s
);
2608 /* For the next 2 functions, SSL_clear() sets shutdown and so
2609 * one of these calls will reset it */
2610 void SSL_set_accept_state(SSL
*s
)
2614 s
->state
=SSL_ST_ACCEPT
|SSL_ST_BEFORE
;
2615 s
->handshake_func
=s
->method
->ssl_accept
;
2616 /* clear the current cipher */
2617 ssl_clear_cipher_ctx(s
);
2618 ssl_clear_hash_ctx(&s
->read_hash
);
2619 ssl_clear_hash_ctx(&s
->write_hash
);
2622 void SSL_set_connect_state(SSL
*s
)
2626 s
->state
=SSL_ST_CONNECT
|SSL_ST_BEFORE
;
2627 s
->handshake_func
=s
->method
->ssl_connect
;
2628 /* clear the current cipher */
2629 ssl_clear_cipher_ctx(s
);
2630 ssl_clear_hash_ctx(&s
->read_hash
);
2631 ssl_clear_hash_ctx(&s
->write_hash
);
2634 int ssl_undefined_function(SSL
*s
)
2636 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2640 int ssl_undefined_void_function(void)
2642 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2646 int ssl_undefined_const_function(const SSL
*s
)
2648 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2652 SSL_METHOD
*ssl_bad_method(int ver
)
2654 SSLerr(SSL_F_SSL_BAD_METHOD
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2658 const char *SSL_get_version(const SSL
*s
)
2660 if (s
->version
== TLS1_2_VERSION
)
2662 else if (s
->version
== TLS1_1_VERSION
)
2664 else if (s
->version
== TLS1_VERSION
)
2666 else if (s
->version
== SSL3_VERSION
)
2668 else if (s
->version
== SSL2_VERSION
)
2674 SSL
*SSL_dup(SSL
*s
)
2676 STACK_OF(X509_NAME
) *sk
;
2681 if ((ret
=SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
2684 ret
->version
= s
->version
;
2685 ret
->type
= s
->type
;
2686 ret
->method
= s
->method
;
2688 if (s
->session
!= NULL
)
2690 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2691 SSL_copy_session_id(ret
,s
);
2695 /* No session has been established yet, so we have to expect
2696 * that s->cert or ret->cert will be changed later --
2697 * they should not both point to the same object,
2698 * and thus we can't use SSL_copy_session_id. */
2700 ret
->method
->ssl_free(ret
);
2701 ret
->method
= s
->method
;
2702 ret
->method
->ssl_new(ret
);
2704 if (s
->cert
!= NULL
)
2706 if (ret
->cert
!= NULL
)
2708 ssl_cert_free(ret
->cert
);
2710 ret
->cert
= ssl_cert_dup(s
->cert
);
2711 if (ret
->cert
== NULL
)
2715 SSL_set_session_id_context(ret
,
2716 s
->sid_ctx
, s
->sid_ctx_length
);
2719 ret
->options
=s
->options
;
2721 SSL_set_max_cert_list(ret
,SSL_get_max_cert_list(s
));
2722 SSL_set_read_ahead(ret
,SSL_get_read_ahead(s
));
2723 ret
->msg_callback
= s
->msg_callback
;
2724 ret
->msg_callback_arg
= s
->msg_callback_arg
;
2725 SSL_set_verify(ret
,SSL_get_verify_mode(s
),
2726 SSL_get_verify_callback(s
));
2727 SSL_set_verify_depth(ret
,SSL_get_verify_depth(s
));
2728 ret
->generate_session_id
= s
->generate_session_id
;
2730 SSL_set_info_callback(ret
,SSL_get_info_callback(s
));
2732 ret
->debug
=s
->debug
;
2734 /* copy app data, a little dangerous perhaps */
2735 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
2738 /* setup rbio, and wbio */
2739 if (s
->rbio
!= NULL
)
2741 if (!BIO_dup_state(s
->rbio
,(char *)&ret
->rbio
))
2744 if (s
->wbio
!= NULL
)
2746 if (s
->wbio
!= s
->rbio
)
2748 if (!BIO_dup_state(s
->wbio
,(char *)&ret
->wbio
))
2752 ret
->wbio
=ret
->rbio
;
2754 ret
->rwstate
= s
->rwstate
;
2755 ret
->in_handshake
= s
->in_handshake
;
2756 ret
->handshake_func
= s
->handshake_func
;
2757 ret
->server
= s
->server
;
2758 ret
->renegotiate
= s
->renegotiate
;
2759 ret
->new_session
= s
->new_session
;
2760 ret
->quiet_shutdown
= s
->quiet_shutdown
;
2761 ret
->shutdown
=s
->shutdown
;
2762 ret
->state
=s
->state
; /* SSL_dup does not really work at any state, though */
2763 ret
->rstate
=s
->rstate
;
2764 ret
->init_num
= 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2767 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
2769 /* dup the cipher_list and cipher_list_by_id stacks */
2770 if (s
->cipher_list
!= NULL
)
2772 if ((ret
->cipher_list
=sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
2775 if (s
->cipher_list_by_id
!= NULL
)
2776 if ((ret
->cipher_list_by_id
=sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
2780 /* Dup the client_CA list */
2781 if (s
->client_CA
!= NULL
)
2783 if ((sk
=sk_X509_NAME_dup(s
->client_CA
)) == NULL
) goto err
;
2785 for (i
=0; i
<sk_X509_NAME_num(sk
); i
++)
2787 xn
=sk_X509_NAME_value(sk
,i
);
2788 if (sk_X509_NAME_set(sk
,i
,X509_NAME_dup(xn
)) == NULL
)
2799 if (ret
!= NULL
) SSL_free(ret
);
2805 void ssl_clear_cipher_ctx(SSL
*s
)
2807 if (s
->enc_read_ctx
!= NULL
)
2809 EVP_CIPHER_CTX_cleanup(s
->enc_read_ctx
);
2810 OPENSSL_free(s
->enc_read_ctx
);
2811 s
->enc_read_ctx
=NULL
;
2813 if (s
->enc_write_ctx
!= NULL
)
2815 EVP_CIPHER_CTX_cleanup(s
->enc_write_ctx
);
2816 OPENSSL_free(s
->enc_write_ctx
);
2817 s
->enc_write_ctx
=NULL
;
2819 #ifndef OPENSSL_NO_COMP
2820 if (s
->expand
!= NULL
)
2822 COMP_CTX_free(s
->expand
);
2825 if (s
->compress
!= NULL
)
2827 COMP_CTX_free(s
->compress
);
2833 /* Fix this function so that it takes an optional type parameter */
2834 X509
*SSL_get_certificate(const SSL
*s
)
2836 if (s
->cert
!= NULL
)
2837 return(s
->cert
->key
->x509
);
2842 /* Fix this function so that it takes an optional type parameter */
2843 EVP_PKEY
*SSL_get_privatekey(SSL
*s
)
2845 if (s
->cert
!= NULL
)
2846 return(s
->cert
->key
->privatekey
);
2851 const SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
2853 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
2854 return(s
->session
->cipher
);
2857 #ifdef OPENSSL_NO_COMP
2858 const void *SSL_get_current_compression(SSL
*s
)
2862 const void *SSL_get_current_expansion(SSL
*s
)
2868 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
2870 if (s
->compress
!= NULL
)
2871 return(s
->compress
->meth
);
2875 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
2877 if (s
->expand
!= NULL
)
2878 return(s
->expand
->meth
);
2883 int ssl_init_wbio_buffer(SSL
*s
,int push
)
2887 if (s
->bbio
== NULL
)
2889 bbio
=BIO_new(BIO_f_buffer());
2890 if (bbio
== NULL
) return(0);
2896 if (s
->bbio
== s
->wbio
)
2897 s
->wbio
=BIO_pop(s
->wbio
);
2899 (void)BIO_reset(bbio
);
2900 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2901 if (!BIO_set_read_buffer_size(bbio
,1))
2903 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
,ERR_R_BUF_LIB
);
2908 if (s
->wbio
!= bbio
)
2909 s
->wbio
=BIO_push(bbio
,s
->wbio
);
2913 if (s
->wbio
== bbio
)
2914 s
->wbio
=BIO_pop(bbio
);
2919 void ssl_free_wbio_buffer(SSL
*s
)
2921 if (s
->bbio
== NULL
) return;
2923 if (s
->bbio
== s
->wbio
)
2925 /* remove buffering */
2926 s
->wbio
=BIO_pop(s
->wbio
);
2927 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2928 assert(s
->wbio
!= NULL
);
2935 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
,int mode
)
2937 ctx
->quiet_shutdown
=mode
;
2940 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
2942 return(ctx
->quiet_shutdown
);
2945 void SSL_set_quiet_shutdown(SSL
*s
,int mode
)
2947 s
->quiet_shutdown
=mode
;
2950 int SSL_get_quiet_shutdown(const SSL
*s
)
2952 return(s
->quiet_shutdown
);
2955 void SSL_set_shutdown(SSL
*s
,int mode
)
2960 int SSL_get_shutdown(const SSL
*s
)
2962 return(s
->shutdown
);
2965 int SSL_version(const SSL
*s
)
2970 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
2975 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
* ctx
)
2977 if (ssl
->ctx
== ctx
)
2979 #ifndef OPENSSL_NO_TLSEXT
2981 ctx
= ssl
->initial_ctx
;
2983 if (ssl
->cert
!= NULL
)
2984 ssl_cert_free(ssl
->cert
);
2985 ssl
->cert
= ssl_cert_dup(ctx
->cert
);
2986 CRYPTO_add(&ctx
->references
,1,CRYPTO_LOCK_SSL_CTX
);
2987 if (ssl
->ctx
!= NULL
)
2988 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
2993 #ifndef OPENSSL_NO_STDIO
2994 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
2996 return(X509_STORE_set_default_paths(ctx
->cert_store
));
2999 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
3002 return(X509_STORE_load_locations(ctx
->cert_store
,CAfile
,CApath
));
3006 void SSL_set_info_callback(SSL
*ssl
,
3007 void (*cb
)(const SSL
*ssl
,int type
,int val
))
3009 ssl
->info_callback
=cb
;
3012 /* One compiler (Diab DCC) doesn't like argument names in returned
3013 function pointer. */
3014 void (*SSL_get_info_callback(const SSL
*ssl
))(const SSL
* /*ssl*/,int /*type*/,int /*val*/)
3016 return ssl
->info_callback
;
3019 int SSL_state(const SSL
*ssl
)
3024 void SSL_set_state(SSL
*ssl
, int state
)
3029 void SSL_set_verify_result(SSL
*ssl
,long arg
)
3031 ssl
->verify_result
=arg
;
3034 long SSL_get_verify_result(const SSL
*ssl
)
3036 return(ssl
->verify_result
);
3039 int SSL_get_ex_new_index(long argl
,void *argp
,CRYPTO_EX_new
*new_func
,
3040 CRYPTO_EX_dup
*dup_func
,CRYPTO_EX_free
*free_func
)
3042 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL
, argl
, argp
,
3043 new_func
, dup_func
, free_func
);
3046 int SSL_set_ex_data(SSL
*s
,int idx
,void *arg
)
3048 return(CRYPTO_set_ex_data(&s
->ex_data
,idx
,arg
));
3051 void *SSL_get_ex_data(const SSL
*s
,int idx
)
3053 return(CRYPTO_get_ex_data(&s
->ex_data
,idx
));
3056 int SSL_CTX_get_ex_new_index(long argl
,void *argp
,CRYPTO_EX_new
*new_func
,
3057 CRYPTO_EX_dup
*dup_func
,CRYPTO_EX_free
*free_func
)
3059 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX
, argl
, argp
,
3060 new_func
, dup_func
, free_func
);
3063 int SSL_CTX_set_ex_data(SSL_CTX
*s
,int idx
,void *arg
)
3065 return(CRYPTO_set_ex_data(&s
->ex_data
,idx
,arg
));
3068 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
,int idx
)
3070 return(CRYPTO_get_ex_data(&s
->ex_data
,idx
));
3078 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
3080 return(ctx
->cert_store
);
3083 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
,X509_STORE
*store
)
3085 if (ctx
->cert_store
!= NULL
)
3086 X509_STORE_free(ctx
->cert_store
);
3087 ctx
->cert_store
=store
;
3090 int SSL_want(const SSL
*s
)
3096 * \brief Set the callback for generating temporary RSA keys.
3097 * \param ctx the SSL context.
3098 * \param cb the callback
3101 #ifndef OPENSSL_NO_RSA
3102 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX
*ctx
,RSA
*(*cb
)(SSL
*ssl
,
3106 SSL_CTX_callback_ctrl(ctx
,SSL_CTRL_SET_TMP_RSA_CB
,(void (*)(void))cb
);
3109 void SSL_set_tmp_rsa_callback(SSL
*ssl
,RSA
*(*cb
)(SSL
*ssl
,
3113 SSL_callback_ctrl(ssl
,SSL_CTRL_SET_TMP_RSA_CB
,(void (*)(void))cb
);
3119 * \brief The RSA temporary key callback function.
3120 * \param ssl the SSL session.
3121 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3122 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3123 * of the required key in bits.
3124 * \return the temporary RSA key.
3125 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3128 RSA
*cb(SSL
*ssl
,int is_export
,int keylength
)
3133 * \brief Set the callback for generating temporary DH keys.
3134 * \param ctx the SSL context.
3135 * \param dh the callback
3138 #ifndef OPENSSL_NO_DH
3139 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,DH
*(*dh
)(SSL
*ssl
,int is_export
,
3142 SSL_CTX_callback_ctrl(ctx
,SSL_CTRL_SET_TMP_DH_CB
,(void (*)(void))dh
);
3145 void SSL_set_tmp_dh_callback(SSL
*ssl
,DH
*(*dh
)(SSL
*ssl
,int is_export
,
3148 SSL_callback_ctrl(ssl
,SSL_CTRL_SET_TMP_DH_CB
,(void (*)(void))dh
);
3152 #ifndef OPENSSL_NO_ECDH
3153 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX
*ctx
,EC_KEY
*(*ecdh
)(SSL
*ssl
,int is_export
,
3156 SSL_CTX_callback_ctrl(ctx
,SSL_CTRL_SET_TMP_ECDH_CB
,(void (*)(void))ecdh
);
3159 void SSL_set_tmp_ecdh_callback(SSL
*ssl
,EC_KEY
*(*ecdh
)(SSL
*ssl
,int is_export
,
3162 SSL_callback_ctrl(ssl
,SSL_CTRL_SET_TMP_ECDH_CB
,(void (*)(void))ecdh
);
3166 #ifndef OPENSSL_NO_PSK
3167 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
3169 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
)
3171 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
3174 if (ctx
->psk_identity_hint
!= NULL
)
3175 OPENSSL_free(ctx
->psk_identity_hint
);
3176 if (identity_hint
!= NULL
)
3178 ctx
->psk_identity_hint
= BUF_strdup(identity_hint
);
3179 if (ctx
->psk_identity_hint
== NULL
)
3183 ctx
->psk_identity_hint
= NULL
;
3187 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
3192 if (s
->session
== NULL
)
3193 return 1; /* session not created yet, ignored */
3195 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
)
3197 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
3200 if (s
->session
->psk_identity_hint
!= NULL
)
3201 OPENSSL_free(s
->session
->psk_identity_hint
);
3202 if (identity_hint
!= NULL
)
3204 s
->session
->psk_identity_hint
= BUF_strdup(identity_hint
);
3205 if (s
->session
->psk_identity_hint
== NULL
)
3209 s
->session
->psk_identity_hint
= NULL
;
3213 const char *SSL_get_psk_identity_hint(const SSL
*s
)
3215 if (s
== NULL
|| s
->session
== NULL
)
3217 return(s
->session
->psk_identity_hint
);
3220 const char *SSL_get_psk_identity(const SSL
*s
)
3222 if (s
== NULL
|| s
->session
== NULL
)
3224 return(s
->session
->psk_identity
);
3227 void SSL_set_psk_client_callback(SSL
*s
,
3228 unsigned int (*cb
)(SSL
*ssl
, const char *hint
,
3229 char *identity
, unsigned int max_identity_len
, unsigned char *psk
,
3230 unsigned int max_psk_len
))
3232 s
->psk_client_callback
= cb
;
3235 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
,
3236 unsigned int (*cb
)(SSL
*ssl
, const char *hint
,
3237 char *identity
, unsigned int max_identity_len
, unsigned char *psk
,
3238 unsigned int max_psk_len
))
3240 ctx
->psk_client_callback
= cb
;
3243 void SSL_set_psk_server_callback(SSL
*s
,
3244 unsigned int (*cb
)(SSL
*ssl
, const char *identity
,
3245 unsigned char *psk
, unsigned int max_psk_len
))
3247 s
->psk_server_callback
= cb
;
3250 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
,
3251 unsigned int (*cb
)(SSL
*ssl
, const char *identity
,
3252 unsigned char *psk
, unsigned int max_psk_len
))
3254 ctx
->psk_server_callback
= cb
;
3258 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
))
3260 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
3262 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
))
3264 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
3267 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX
*ctx
,
3268 int (*cb
)(SSL
*ssl
, int is_forward_secure
))
3270 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
3271 (void (*)(void))cb
);
3273 void SSL_set_not_resumable_session_callback(SSL
*ssl
,
3274 int (*cb
)(SSL
*ssl
, int is_forward_secure
))
3276 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB
,
3277 (void (*)(void))cb
);
3280 /* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3281 * vairable, freeing EVP_MD_CTX previously stored in that variable, if
3282 * any. If EVP_MD pointer is passed, initializes ctx with this md
3283 * Returns newly allocated ctx;
3286 EVP_MD_CTX
*ssl_replace_hash(EVP_MD_CTX
**hash
,const EVP_MD
*md
)
3288 ssl_clear_hash_ctx(hash
);
3289 *hash
= EVP_MD_CTX_create();
3290 if (md
) EVP_DigestInit_ex(*hash
,md
,NULL
);
3293 void ssl_clear_hash_ctx(EVP_MD_CTX
**hash
)
3296 if (*hash
) EVP_MD_CTX_destroy(*hash
);
3300 void SSL_set_debug(SSL
*s
, int debug
)
3305 int SSL_cache_hit(SSL
*s
)
3310 int SSL_is_server(SSL
*s
)
3315 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
3316 #include "../crypto/bio/bss_file.c"
3319 IMPLEMENT_STACK_OF(SSL_CIPHER
)
3320 IMPLEMENT_STACK_OF(SSL_COMP
)
3321 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER
, SSL_CIPHER
,