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 #ifndef OPENSSL_NO_DH
155 #include <openssl/dh.h>
158 const char *SSL_version_str
=OPENSSL_VERSION_TEXT
;
160 SSL3_ENC_METHOD ssl3_undef_enc_method
={
161 /* evil casts, but these functions are only called if there's a library bug */
162 (int (*)(SSL
*,int))ssl_undefined_function
,
163 (int (*)(SSL
*, unsigned char *, int))ssl_undefined_function
,
164 ssl_undefined_function
,
165 (int (*)(SSL
*, unsigned char *, unsigned char *, int))ssl_undefined_function
,
166 (int (*)(SSL
*, int))ssl_undefined_function
,
167 (int (*)(SSL
*, EVP_MD_CTX
*, EVP_MD_CTX
*, const char*, int, unsigned char *))ssl_undefined_function
,
168 0, /* finish_mac_length */
169 (int (*)(SSL
*, EVP_MD_CTX
*, unsigned char *))ssl_undefined_function
,
170 NULL
, /* client_finished_label */
171 0, /* client_finished_label_len */
172 NULL
, /* server_finished_label */
173 0, /* server_finished_label_len */
174 (int (*)(int))ssl_undefined_function
177 int SSL_clear(SSL
*s
)
180 if (s
->method
== NULL
)
182 SSLerr(SSL_F_SSL_CLEAR
,SSL_R_NO_METHOD_SPECIFIED
);
186 if (ssl_clear_bad_session(s
))
188 SSL_SESSION_free(s
->session
);
196 #if 0 /* Disabled since version 1.10 of this file (early return not
197 * needed because SSL_clear is not called when doing renegotiation) */
198 /* This is set if we are doing dynamic renegotiation so keep
199 * the old cipher. It is sort of a SSL_clear_lite :-) */
200 if (s
->new_session
) return(1);
204 SSLerr(SSL_F_SSL_CLEAR
,ERR_R_INTERNAL_ERROR
);
211 s
->state
=SSL_ST_BEFORE
|((s
->server
)?SSL_ST_ACCEPT
:SSL_ST_CONNECT
);
213 s
->version
=s
->method
->version
;
214 s
->client_version
=s
->version
;
215 s
->rwstate
=SSL_NOTHING
;
216 s
->rstate
=SSL_ST_READ_HEADER
;
218 s
->read_ahead
=s
->ctx
->read_ahead
;
221 if (s
->init_buf
!= NULL
)
223 BUF_MEM_free(s
->init_buf
);
227 ssl_clear_cipher_ctx(s
);
232 /* Check to see if we were changed into a different method, if
233 * so, revert back if we are not doing session-id reuse. */
234 if (!s
->in_handshake
&& (s
->session
== NULL
) && (s
->method
!= s
->ctx
->method
))
236 s
->method
->ssl_free(s
);
237 s
->method
=s
->ctx
->method
;
238 if (!s
->method
->ssl_new(s
))
243 s
->method
->ssl_clear(s
);
247 /** Used to change an SSL_CTXs default SSL method type */
248 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
,const SSL_METHOD
*meth
)
250 STACK_OF(SSL_CIPHER
) *sk
;
254 sk
=ssl_create_cipher_list(ctx
->method
,&(ctx
->cipher_list
),
255 &(ctx
->cipher_list_by_id
),SSL_DEFAULT_CIPHER_LIST
);
256 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0))
258 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
264 SSL
*SSL_new(SSL_CTX
*ctx
)
270 SSLerr(SSL_F_SSL_NEW
,SSL_R_NULL_SSL_CTX
);
273 if (ctx
->method
== NULL
)
275 SSLerr(SSL_F_SSL_NEW
,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
279 s
=(SSL
*)OPENSSL_malloc(sizeof(SSL
));
280 if (s
== NULL
) goto err
;
281 memset(s
,0,sizeof(SSL
));
283 #ifndef OPENSSL_NO_KRB5
284 s
->kssl_ctx
= kssl_ctx_new();
285 #endif /* OPENSSL_NO_KRB5 */
287 s
->options
=ctx
->options
;
289 s
->max_cert_list
=ctx
->max_cert_list
;
291 if (ctx
->cert
!= NULL
)
293 /* Earlier library versions used to copy the pointer to
294 * the CERT, not its contents; only when setting new
295 * parameters for the per-SSL copy, ssl_cert_new would be
296 * called (and the direct reference to the per-SSL_CTX
297 * settings would be lost, but those still were indirectly
298 * accessed for various purposes, and for that reason they
299 * used to be known as s->ctx->default_cert).
300 * Now we don't look at the SSL_CTX's CERT after having
301 * duplicated it once. */
303 s
->cert
= ssl_cert_dup(ctx
->cert
);
308 s
->cert
=NULL
; /* Cannot really happen (see SSL_CTX_new) */
310 s
->read_ahead
=ctx
->read_ahead
;
311 s
->msg_callback
=ctx
->msg_callback
;
312 s
->msg_callback_arg
=ctx
->msg_callback_arg
;
313 s
->verify_mode
=ctx
->verify_mode
;
315 s
->verify_depth
=ctx
->verify_depth
;
317 s
->sid_ctx_length
=ctx
->sid_ctx_length
;
318 OPENSSL_assert(s
->sid_ctx_length
<= sizeof s
->sid_ctx
);
319 memcpy(&s
->sid_ctx
,&ctx
->sid_ctx
,sizeof(s
->sid_ctx
));
320 s
->verify_callback
=ctx
->default_verify_callback
;
321 s
->generate_session_id
=ctx
->generate_session_id
;
323 s
->param
= X509_VERIFY_PARAM_new();
326 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
328 s
->purpose
= ctx
->purpose
;
329 s
->trust
= ctx
->trust
;
331 s
->quiet_shutdown
=ctx
->quiet_shutdown
;
332 s
->max_send_fragment
= ctx
->max_send_fragment
;
334 CRYPTO_add(&ctx
->references
,1,CRYPTO_LOCK_SSL_CTX
);
336 #ifndef OPENSSL_NO_TLSEXT
337 CRYPTO_add(&ctx
->references
,1,CRYPTO_LOCK_SSL_CTX
);
341 s
->verify_result
=X509_V_OK
;
343 s
->method
=ctx
->method
;
345 if (!s
->method
->ssl_new(s
))
349 s
->server
=(ctx
->method
->ssl_accept
== ssl_undefined_function
)?0:1;
353 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
355 #ifndef OPENSSL_NO_PSK
356 s
->psk_client_callback
=ctx
->psk_client_callback
;
357 s
->psk_server_callback
=ctx
->psk_server_callback
;
365 ssl_cert_free(s
->cert
);
367 SSL_CTX_free(s
->ctx
); /* decrement reference count */
370 SSLerr(SSL_F_SSL_NEW
,ERR_R_MALLOC_FAILURE
);
374 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
,const unsigned char *sid_ctx
,
375 unsigned int sid_ctx_len
)
377 if(sid_ctx_len
> sizeof ctx
->sid_ctx
)
379 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
382 ctx
->sid_ctx_length
=sid_ctx_len
;
383 memcpy(ctx
->sid_ctx
,sid_ctx
,sid_ctx_len
);
388 int SSL_set_session_id_context(SSL
*ssl
,const unsigned char *sid_ctx
,
389 unsigned int sid_ctx_len
)
391 if(sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
)
393 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
396 ssl
->sid_ctx_length
=sid_ctx_len
;
397 memcpy(ssl
->sid_ctx
,sid_ctx
,sid_ctx_len
);
402 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
404 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX
);
405 ctx
->generate_session_id
= cb
;
406 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX
);
410 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
412 CRYPTO_w_lock(CRYPTO_LOCK_SSL
);
413 ssl
->generate_session_id
= cb
;
414 CRYPTO_w_unlock(CRYPTO_LOCK_SSL
);
418 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
421 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
422 * we can "construct" a session to give us the desired check - ie. to
423 * find if there's a session in the hash table that would conflict with
424 * any new session built out of this id/id_len and the ssl_version in
425 * use by this SSL. */
428 if(id_len
> sizeof r
.session_id
)
431 r
.ssl_version
= ssl
->version
;
432 r
.session_id_length
= id_len
;
433 memcpy(r
.session_id
, id
, id_len
);
434 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
435 * callback is calling us to check the uniqueness of a shorter ID, it
436 * must be compared as a padded-out ID because that is what it will be
437 * converted to when the callback has finished choosing it. */
438 if((r
.ssl_version
== SSL2_VERSION
) &&
439 (id_len
< SSL2_SSL_SESSION_ID_LENGTH
))
441 memset(r
.session_id
+ id_len
, 0,
442 SSL2_SSL_SESSION_ID_LENGTH
- id_len
);
443 r
.session_id_length
= SSL2_SSL_SESSION_ID_LENGTH
;
446 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX
);
447 p
= (SSL_SESSION
*)lh_retrieve(ssl
->ctx
->sessions
, &r
);
448 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX
);
452 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
454 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
457 int SSL_set_purpose(SSL
*s
, int purpose
)
459 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
462 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
464 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
467 int SSL_set_trust(SSL
*s
, int trust
)
469 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
472 void SSL_free(SSL
*s
)
479 i
=CRYPTO_add(&s
->references
,-1,CRYPTO_LOCK_SSL
);
487 fprintf(stderr
,"SSL_free, bad reference count\n");
493 X509_VERIFY_PARAM_free(s
->param
);
495 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
499 /* If the buffering BIO is in place, pop it off */
500 if (s
->bbio
== s
->wbio
)
502 s
->wbio
=BIO_pop(s
->wbio
);
508 BIO_free_all(s
->rbio
);
509 if ((s
->wbio
!= NULL
) && (s
->wbio
!= s
->rbio
))
510 BIO_free_all(s
->wbio
);
512 if (s
->init_buf
!= NULL
) BUF_MEM_free(s
->init_buf
);
514 /* add extra stuff */
515 if (s
->cipher_list
!= NULL
) sk_SSL_CIPHER_free(s
->cipher_list
);
516 if (s
->cipher_list_by_id
!= NULL
) sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
518 /* Make the next call work :-) */
519 if (s
->session
!= NULL
)
521 ssl_clear_bad_session(s
);
522 SSL_SESSION_free(s
->session
);
525 ssl_clear_cipher_ctx(s
);
527 if (s
->cert
!= NULL
) ssl_cert_free(s
->cert
);
528 /* Free up if allocated */
530 if (s
->ctx
) SSL_CTX_free(s
->ctx
);
531 #ifndef OPENSSL_NO_TLSEXT
532 if (s
->initial_ctx
) SSL_CTX_free(s
->initial_ctx
);
533 #ifndef OPENSSL_NO_EC
534 if (s
->tlsext_ecpointformatlist
) OPENSSL_free(s
->tlsext_ecpointformatlist
);
535 if (s
->tlsext_ellipticcurvelist
) OPENSSL_free(s
->tlsext_ellipticcurvelist
);
536 #endif /* OPENSSL_NO_EC */
539 if (s
->client_CA
!= NULL
)
540 sk_X509_NAME_pop_free(s
->client_CA
,X509_NAME_free
);
542 if (s
->method
!= NULL
) s
->method
->ssl_free(s
);
544 #ifndef OPENSSL_NO_KRB5
545 if (s
->kssl_ctx
!= NULL
)
546 kssl_ctx_free(s
->kssl_ctx
);
547 #endif /* OPENSSL_NO_KRB5 */
552 void SSL_set_bio(SSL
*s
,BIO
*rbio
,BIO
*wbio
)
554 /* If the output buffering BIO is still in place, remove it
558 if (s
->wbio
== s
->bbio
)
560 s
->wbio
=s
->wbio
->next_bio
;
561 s
->bbio
->next_bio
=NULL
;
564 if ((s
->rbio
!= NULL
) && (s
->rbio
!= rbio
))
565 BIO_free_all(s
->rbio
);
566 if ((s
->wbio
!= NULL
) && (s
->wbio
!= wbio
) && (s
->rbio
!= s
->wbio
))
567 BIO_free_all(s
->wbio
);
572 BIO
*SSL_get_rbio(const SSL
*s
)
575 BIO
*SSL_get_wbio(const SSL
*s
)
578 int SSL_get_fd(const SSL
*s
)
580 return(SSL_get_rfd(s
));
583 int SSL_get_rfd(const SSL
*s
)
589 r
=BIO_find_type(b
,BIO_TYPE_DESCRIPTOR
);
595 int SSL_get_wfd(const SSL
*s
)
601 r
=BIO_find_type(b
,BIO_TYPE_DESCRIPTOR
);
607 #ifndef OPENSSL_NO_SOCK
608 int SSL_set_fd(SSL
*s
,int fd
)
613 bio
=BIO_new(BIO_s_socket());
617 SSLerr(SSL_F_SSL_SET_FD
,ERR_R_BUF_LIB
);
620 BIO_set_fd(bio
,fd
,BIO_NOCLOSE
);
621 SSL_set_bio(s
,bio
,bio
);
627 int SSL_set_wfd(SSL
*s
,int fd
)
632 if ((s
->rbio
== NULL
) || (BIO_method_type(s
->rbio
) != BIO_TYPE_SOCKET
)
633 || ((int)BIO_get_fd(s
->rbio
,NULL
) != fd
))
635 bio
=BIO_new(BIO_s_socket());
638 { SSLerr(SSL_F_SSL_SET_WFD
,ERR_R_BUF_LIB
); goto err
; }
639 BIO_set_fd(bio
,fd
,BIO_NOCLOSE
);
640 SSL_set_bio(s
,SSL_get_rbio(s
),bio
);
643 SSL_set_bio(s
,SSL_get_rbio(s
),SSL_get_rbio(s
));
649 int SSL_set_rfd(SSL
*s
,int fd
)
654 if ((s
->wbio
== NULL
) || (BIO_method_type(s
->wbio
) != BIO_TYPE_SOCKET
)
655 || ((int)BIO_get_fd(s
->wbio
,NULL
) != fd
))
657 bio
=BIO_new(BIO_s_socket());
661 SSLerr(SSL_F_SSL_SET_RFD
,ERR_R_BUF_LIB
);
664 BIO_set_fd(bio
,fd
,BIO_NOCLOSE
);
665 SSL_set_bio(s
,bio
,SSL_get_wbio(s
));
668 SSL_set_bio(s
,SSL_get_wbio(s
),SSL_get_wbio(s
));
676 /* return length of latest Finished message we sent, copy to 'buf' */
677 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
683 ret
= s
->s3
->tmp
.finish_md_len
;
686 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
691 /* return length of latest Finished message we expected, copy to 'buf' */
692 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
698 ret
= s
->s3
->tmp
.peer_finish_md_len
;
701 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
707 int SSL_get_verify_mode(const SSL
*s
)
709 return(s
->verify_mode
);
712 int SSL_get_verify_depth(const SSL
*s
)
714 return X509_VERIFY_PARAM_get_depth(s
->param
);
717 int (*SSL_get_verify_callback(const SSL
*s
))(int,X509_STORE_CTX
*)
719 return(s
->verify_callback
);
722 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
724 return(ctx
->verify_mode
);
727 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
729 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
732 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
))(int,X509_STORE_CTX
*)
734 return(ctx
->default_verify_callback
);
737 void SSL_set_verify(SSL
*s
,int mode
,
738 int (*callback
)(int ok
,X509_STORE_CTX
*ctx
))
741 if (callback
!= NULL
)
742 s
->verify_callback
=callback
;
745 void SSL_set_verify_depth(SSL
*s
,int depth
)
747 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
750 void SSL_set_read_ahead(SSL
*s
,int yes
)
755 int SSL_get_read_ahead(const SSL
*s
)
757 return(s
->read_ahead
);
760 int SSL_pending(const SSL
*s
)
762 /* SSL_pending cannot work properly if read-ahead is enabled
763 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
764 * and it is impossible to fix since SSL_pending cannot report
765 * errors that may be observed while scanning the new data.
766 * (Note that SSL_pending() is often used as a boolean value,
767 * so we'd better not return -1.)
769 return(s
->method
->ssl_pending(s
));
772 X509
*SSL_get_peer_certificate(const SSL
*s
)
776 if ((s
== NULL
) || (s
->session
== NULL
))
781 if (r
== NULL
) return(r
);
783 CRYPTO_add(&r
->references
,1,CRYPTO_LOCK_X509
);
788 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
792 if ((s
== NULL
) || (s
->session
== NULL
) || (s
->session
->sess_cert
== NULL
))
795 r
=s
->session
->sess_cert
->cert_chain
;
797 /* If we are a client, cert_chain includes the peer's own
798 * certificate; if we are a server, it does not. */
803 /* Now in theory, since the calling process own 't' it should be safe to
804 * modify. We need to be able to read f without being hassled */
805 void SSL_copy_session_id(SSL
*t
,const SSL
*f
)
809 /* Do we need to to SSL locking? */
810 SSL_set_session(t
,SSL_get_session(f
));
812 /* what if we are setup as SSLv2 but want to talk SSLv3 or
814 if (t
->method
!= f
->method
)
816 t
->method
->ssl_free(t
); /* cleanup current */
817 t
->method
=f
->method
; /* change method */
818 t
->method
->ssl_new(t
); /* setup new */
824 CRYPTO_add(&f
->cert
->references
,1,CRYPTO_LOCK_SSL_CERT
);
829 if (tmp
!= NULL
) ssl_cert_free(tmp
);
830 SSL_set_session_id_context(t
,f
->sid_ctx
,f
->sid_ctx_length
);
833 /* Fix this so it checks all the valid key/cert options */
834 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
836 if ( (ctx
== NULL
) ||
837 (ctx
->cert
== NULL
) ||
838 (ctx
->cert
->key
->x509
== NULL
))
840 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,SSL_R_NO_CERTIFICATE_ASSIGNED
);
843 if (ctx
->cert
->key
->privatekey
== NULL
)
845 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
848 return(X509_check_private_key(ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
));
851 /* Fix this function so that it takes an optional type parameter */
852 int SSL_check_private_key(const SSL
*ssl
)
856 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,ERR_R_PASSED_NULL_PARAMETER
);
859 if (ssl
->cert
== NULL
)
861 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,SSL_R_NO_CERTIFICATE_ASSIGNED
);
864 if (ssl
->cert
->key
->x509
== NULL
)
866 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,SSL_R_NO_CERTIFICATE_ASSIGNED
);
869 if (ssl
->cert
->key
->privatekey
== NULL
)
871 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
874 return(X509_check_private_key(ssl
->cert
->key
->x509
,
875 ssl
->cert
->key
->privatekey
));
878 int SSL_accept(SSL
*s
)
880 if (s
->handshake_func
== 0)
881 /* Not properly initialized yet */
882 SSL_set_accept_state(s
);
884 return(s
->method
->ssl_accept(s
));
887 int SSL_connect(SSL
*s
)
889 if (s
->handshake_func
== 0)
890 /* Not properly initialized yet */
891 SSL_set_connect_state(s
);
893 return(s
->method
->ssl_connect(s
));
896 long SSL_get_default_timeout(const SSL
*s
)
898 return(s
->method
->get_timeout());
901 int SSL_read(SSL
*s
,void *buf
,int num
)
903 if (s
->handshake_func
== 0)
905 SSLerr(SSL_F_SSL_READ
, SSL_R_UNINITIALIZED
);
909 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
)
911 s
->rwstate
=SSL_NOTHING
;
914 return(s
->method
->ssl_read(s
,buf
,num
));
917 int SSL_peek(SSL
*s
,void *buf
,int num
)
919 if (s
->handshake_func
== 0)
921 SSLerr(SSL_F_SSL_PEEK
, SSL_R_UNINITIALIZED
);
925 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
)
929 return(s
->method
->ssl_peek(s
,buf
,num
));
932 int SSL_write(SSL
*s
,const void *buf
,int num
)
934 if (s
->handshake_func
== 0)
936 SSLerr(SSL_F_SSL_WRITE
, SSL_R_UNINITIALIZED
);
940 if (s
->shutdown
& SSL_SENT_SHUTDOWN
)
942 s
->rwstate
=SSL_NOTHING
;
943 SSLerr(SSL_F_SSL_WRITE
,SSL_R_PROTOCOL_IS_SHUTDOWN
);
946 return(s
->method
->ssl_write(s
,buf
,num
));
949 int SSL_shutdown(SSL
*s
)
951 /* Note that this function behaves differently from what one might
952 * expect. Return values are 0 for no success (yet),
953 * 1 for success; but calling it once is usually not enough,
954 * even if blocking I/O is used (see ssl3_shutdown).
957 if (s
->handshake_func
== 0)
959 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
963 if ((s
!= NULL
) && !SSL_in_init(s
))
964 return(s
->method
->ssl_shutdown(s
));
969 int SSL_renegotiate(SSL
*s
)
971 if (s
->new_session
== 0)
975 return(s
->method
->ssl_renegotiate(s
));
978 int SSL_renegotiate_pending(SSL
*s
)
980 /* becomes true when negotiation is requested;
981 * false again once a handshake has finished */
982 return (s
->new_session
!= 0);
985 long SSL_ctrl(SSL
*s
,int cmd
,long larg
,void *parg
)
991 case SSL_CTRL_GET_READ_AHEAD
:
992 return(s
->read_ahead
);
993 case SSL_CTRL_SET_READ_AHEAD
:
998 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
999 s
->msg_callback_arg
= parg
;
1002 case SSL_CTRL_OPTIONS
:
1003 return(s
->options
|=larg
);
1005 return(s
->mode
|=larg
);
1006 case SSL_CTRL_GET_MAX_CERT_LIST
:
1007 return(s
->max_cert_list
);
1008 case SSL_CTRL_SET_MAX_CERT_LIST
:
1010 s
->max_cert_list
=larg
;
1012 case SSL_CTRL_SET_MTU
:
1013 if (SSL_version(s
) == DTLS1_VERSION
)
1019 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
1020 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
1022 s
->max_send_fragment
= larg
;
1025 return(s
->method
->ssl_ctrl(s
,cmd
,larg
,parg
));
1029 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
)(void))
1033 case SSL_CTRL_SET_MSG_CALLBACK
:
1034 s
->msg_callback
= (void (*)(int write_p
, int version
, int content_type
, const void *buf
, size_t len
, SSL
*ssl
, void *arg
))(fp
);
1038 return(s
->method
->ssl_callback_ctrl(s
,cmd
,fp
));
1042 struct lhash_st
*SSL_CTX_sessions(SSL_CTX
*ctx
)
1044 return ctx
->sessions
;
1047 long SSL_CTX_ctrl(SSL_CTX
*ctx
,int cmd
,long larg
,void *parg
)
1053 case SSL_CTRL_GET_READ_AHEAD
:
1054 return(ctx
->read_ahead
);
1055 case SSL_CTRL_SET_READ_AHEAD
:
1057 ctx
->read_ahead
=larg
;
1060 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1061 ctx
->msg_callback_arg
= parg
;
1064 case SSL_CTRL_GET_MAX_CERT_LIST
:
1065 return(ctx
->max_cert_list
);
1066 case SSL_CTRL_SET_MAX_CERT_LIST
:
1067 l
=ctx
->max_cert_list
;
1068 ctx
->max_cert_list
=larg
;
1071 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
1072 l
=ctx
->session_cache_size
;
1073 ctx
->session_cache_size
=larg
;
1075 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
1076 return(ctx
->session_cache_size
);
1077 case SSL_CTRL_SET_SESS_CACHE_MODE
:
1078 l
=ctx
->session_cache_mode
;
1079 ctx
->session_cache_mode
=larg
;
1081 case SSL_CTRL_GET_SESS_CACHE_MODE
:
1082 return(ctx
->session_cache_mode
);
1084 case SSL_CTRL_SESS_NUMBER
:
1085 return(ctx
->sessions
->num_items
);
1086 case SSL_CTRL_SESS_CONNECT
:
1087 return(ctx
->stats
.sess_connect
);
1088 case SSL_CTRL_SESS_CONNECT_GOOD
:
1089 return(ctx
->stats
.sess_connect_good
);
1090 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
1091 return(ctx
->stats
.sess_connect_renegotiate
);
1092 case SSL_CTRL_SESS_ACCEPT
:
1093 return(ctx
->stats
.sess_accept
);
1094 case SSL_CTRL_SESS_ACCEPT_GOOD
:
1095 return(ctx
->stats
.sess_accept_good
);
1096 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
1097 return(ctx
->stats
.sess_accept_renegotiate
);
1098 case SSL_CTRL_SESS_HIT
:
1099 return(ctx
->stats
.sess_hit
);
1100 case SSL_CTRL_SESS_CB_HIT
:
1101 return(ctx
->stats
.sess_cb_hit
);
1102 case SSL_CTRL_SESS_MISSES
:
1103 return(ctx
->stats
.sess_miss
);
1104 case SSL_CTRL_SESS_TIMEOUTS
:
1105 return(ctx
->stats
.sess_timeout
);
1106 case SSL_CTRL_SESS_CACHE_FULL
:
1107 return(ctx
->stats
.sess_cache_full
);
1108 case SSL_CTRL_OPTIONS
:
1109 return(ctx
->options
|=larg
);
1111 return(ctx
->mode
|=larg
);
1112 case SSL_CTRL_SET_MAX_SEND_FRAGMENT
:
1113 if (larg
< 512 || larg
> SSL3_RT_MAX_PLAIN_LENGTH
)
1115 ctx
->max_send_fragment
= larg
;
1118 return(ctx
->method
->ssl_ctx_ctrl(ctx
,cmd
,larg
,parg
));
1122 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
)(void))
1126 case SSL_CTRL_SET_MSG_CALLBACK
:
1127 ctx
->msg_callback
= (void (*)(int write_p
, int version
, int content_type
, const void *buf
, size_t len
, SSL
*ssl
, void *arg
))(fp
);
1131 return(ctx
->method
->ssl_ctx_callback_ctrl(ctx
,cmd
,fp
));
1135 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
1143 return((l
> 0)?1:-1);
1146 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
* const *ap
,
1147 const SSL_CIPHER
* const *bp
)
1151 l
=(*ap
)->id
-(*bp
)->id
;
1155 return((l
> 0)?1:-1);
1158 /** return a STACK of the ciphers available for the SSL and in order of
1160 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
1164 if (s
->cipher_list
!= NULL
)
1166 return(s
->cipher_list
);
1168 else if ((s
->ctx
!= NULL
) &&
1169 (s
->ctx
->cipher_list
!= NULL
))
1171 return(s
->ctx
->cipher_list
);
1177 /** return a STACK of the ciphers available for the SSL and in order of
1179 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
1183 if (s
->cipher_list_by_id
!= NULL
)
1185 return(s
->cipher_list_by_id
);
1187 else if ((s
->ctx
!= NULL
) &&
1188 (s
->ctx
->cipher_list_by_id
!= NULL
))
1190 return(s
->ctx
->cipher_list_by_id
);
1196 /** The old interface to get the same thing as SSL_get_ciphers() */
1197 const char *SSL_get_cipher_list(const SSL
*s
,int n
)
1200 STACK_OF(SSL_CIPHER
) *sk
;
1202 if (s
== NULL
) return(NULL
);
1203 sk
=SSL_get_ciphers(s
);
1204 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
1206 c
=sk_SSL_CIPHER_value(sk
,n
);
1207 if (c
== NULL
) return(NULL
);
1211 /** specify the ciphers to be used by default by the SSL_CTX */
1212 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
1214 STACK_OF(SSL_CIPHER
) *sk
;
1216 sk
=ssl_create_cipher_list(ctx
->method
,&ctx
->cipher_list
,
1217 &ctx
->cipher_list_by_id
,str
);
1218 /* ssl_create_cipher_list may return an empty stack if it
1219 * was unable to find a cipher matching the given rule string
1220 * (for example if the rule string specifies a cipher which
1221 * has been disabled). This is not an error as far as
1222 * ssl_create_cipher_list is concerned, and hence
1223 * ctx->cipher_list and ctx->cipher_list_by_id has been
1227 else if (sk_SSL_CIPHER_num(sk
) == 0)
1229 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
1235 /** specify the ciphers to be used by the SSL */
1236 int SSL_set_cipher_list(SSL
*s
,const char *str
)
1238 STACK_OF(SSL_CIPHER
) *sk
;
1240 sk
=ssl_create_cipher_list(s
->ctx
->method
,&s
->cipher_list
,
1241 &s
->cipher_list_by_id
,str
);
1242 /* see comment in SSL_CTX_set_cipher_list */
1245 else if (sk_SSL_CIPHER_num(sk
) == 0)
1247 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
1253 /* works well for SSLv2, not so good for SSLv3 */
1254 char *SSL_get_shared_ciphers(const SSL
*s
,char *buf
,int len
)
1258 STACK_OF(SSL_CIPHER
) *sk
;
1262 if ((s
->session
== NULL
) || (s
->session
->ciphers
== NULL
) ||
1267 sk
=s
->session
->ciphers
;
1268 for (i
=0; i
<sk_SSL_CIPHER_num(sk
); i
++)
1270 /* Decrement for either the ':' or a '\0' */
1272 c
=sk_SSL_CIPHER_value(sk
,i
);
1273 for (cp
=c
->name
; *cp
; )
1289 int ssl_cipher_list_to_bytes(SSL
*s
,STACK_OF(SSL_CIPHER
) *sk
,unsigned char *p
,
1290 int (*put_cb
)(const SSL_CIPHER
*, unsigned char *))
1295 #ifndef OPENSSL_NO_KRB5
1296 int nokrb5
= !kssl_tgt_is_available(s
->kssl_ctx
);
1297 #endif /* OPENSSL_NO_KRB5 */
1299 if (sk
== NULL
) return(0);
1302 for (i
=0; i
<sk_SSL_CIPHER_num(sk
); i
++)
1304 c
=sk_SSL_CIPHER_value(sk
,i
);
1305 #ifndef OPENSSL_NO_KRB5
1306 if (((c
->algorithm_mkey
& SSL_kKRB5
) || (c
->algorithm_auth
& SSL_aKRB5
)) &&
1309 #endif /* OPENSSL_NO_KRB5 */
1310 #ifndef OPENSSL_NO_PSK
1311 /* with PSK there must be client callback set */
1312 if (((c
->algorithm_mkey
& SSL_kPSK
) || (c
->algorithm_auth
& SSL_aPSK
)) &&
1313 s
->psk_client_callback
== NULL
)
1315 #endif /* OPENSSL_NO_PSK */
1316 j
= put_cb
? put_cb(c
,p
) : ssl_put_cipher_by_char(s
,c
,p
);
1322 STACK_OF(SSL_CIPHER
) *ssl_bytes_to_cipher_list(SSL
*s
,unsigned char *p
,int num
,
1323 STACK_OF(SSL_CIPHER
) **skp
)
1326 STACK_OF(SSL_CIPHER
) *sk
;
1329 n
=ssl_put_cipher_by_char(s
,NULL
,NULL
);
1332 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
1335 if ((skp
== NULL
) || (*skp
== NULL
))
1336 sk
=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1340 sk_SSL_CIPHER_zero(sk
);
1343 for (i
=0; i
<num
; i
+=n
)
1345 c
=ssl_get_cipher_by_char(s
,p
);
1349 if (!sk_SSL_CIPHER_push(sk
,c
))
1351 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,ERR_R_MALLOC_FAILURE
);
1361 if ((skp
== NULL
) || (*skp
== NULL
))
1362 sk_SSL_CIPHER_free(sk
);
1367 #ifndef OPENSSL_TLSEXT
1368 /** return a servername extension value if provided in Client Hello, or NULL.
1369 * So far, only host_name types are defined (RFC 3546).
1372 const char *SSL_get_servername(const SSL
*s
, const int type
)
1374 if (type
!= TLSEXT_NAMETYPE_host_name
)
1377 return s
->session
&& !s
->tlsext_hostname
?
1378 s
->session
->tlsext_hostname
:
1382 int SSL_get_servername_type(const SSL
*s
)
1384 if (s
->session
&& (!s
->tlsext_hostname
? s
->session
->tlsext_hostname
: s
->tlsext_hostname
))
1385 return TLSEXT_NAMETYPE_host_name
;
1390 unsigned long SSL_SESSION_hash(const SSL_SESSION
*a
)
1395 ((unsigned int) a
->session_id
[0] )|
1396 ((unsigned int) a
->session_id
[1]<< 8L)|
1397 ((unsigned long)a
->session_id
[2]<<16L)|
1398 ((unsigned long)a
->session_id
[3]<<24L);
1402 /* NB: If this function (or indeed the hash function which uses a sort of
1403 * coarser function than this one) is changed, ensure
1404 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1405 * able to construct an SSL_SESSION that will collide with any existing session
1406 * with a matching session ID. */
1407 int SSL_SESSION_cmp(const SSL_SESSION
*a
,const SSL_SESSION
*b
)
1409 if (a
->ssl_version
!= b
->ssl_version
)
1411 if (a
->session_id_length
!= b
->session_id_length
)
1413 return(memcmp(a
->session_id
,b
->session_id
,a
->session_id_length
));
1416 /* These wrapper functions should remain rather than redeclaring
1417 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1418 * variable. The reason is that the functions aren't static, they're exposed via
1420 static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash
, SSL_SESSION
*)
1421 static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp
, SSL_SESSION
*)
1423 SSL_CTX
*SSL_CTX_new(const SSL_METHOD
*meth
)
1429 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_NULL_SSL_METHOD_PASSED
);
1433 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1435 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
1438 ret
=(SSL_CTX
*)OPENSSL_malloc(sizeof(SSL_CTX
));
1442 memset(ret
,0,sizeof(SSL_CTX
));
1446 ret
->cert_store
=NULL
;
1447 ret
->session_cache_mode
=SSL_SESS_CACHE_SERVER
;
1448 ret
->session_cache_size
=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
1449 ret
->session_cache_head
=NULL
;
1450 ret
->session_cache_tail
=NULL
;
1452 /* We take the system default */
1453 ret
->session_timeout
=meth
->get_timeout();
1455 ret
->new_session_cb
=0;
1456 ret
->remove_session_cb
=0;
1457 ret
->get_session_cb
=0;
1458 ret
->generate_session_id
=0;
1460 memset((char *)&ret
->stats
,0,sizeof(ret
->stats
));
1463 ret
->quiet_shutdown
=0;
1465 /* ret->cipher=NULL;*/
1466 /* ret->s2->challenge=NULL;
1467 ret->master_key=NULL;
1469 ret->s2->conn_id=NULL; */
1471 ret
->info_callback
=NULL
;
1473 ret
->app_verify_callback
=0;
1474 ret
->app_verify_arg
=NULL
;
1476 ret
->max_cert_list
=SSL_MAX_CERT_LIST_DEFAULT
;
1478 ret
->msg_callback
=0;
1479 ret
->msg_callback_arg
=NULL
;
1480 ret
->verify_mode
=SSL_VERIFY_NONE
;
1482 ret
->verify_depth
=-1; /* Don't impose a limit (but x509_lu.c does) */
1484 ret
->sid_ctx_length
=0;
1485 ret
->default_verify_callback
=NULL
;
1486 if ((ret
->cert
=ssl_cert_new()) == NULL
)
1489 ret
->default_passwd_callback
=0;
1490 ret
->default_passwd_callback_userdata
=NULL
;
1491 ret
->client_cert_cb
=0;
1492 ret
->app_gen_cookie_cb
=0;
1493 ret
->app_verify_cookie_cb
=0;
1495 ret
->sessions
=lh_new(LHASH_HASH_FN(SSL_SESSION_hash
),
1496 LHASH_COMP_FN(SSL_SESSION_cmp
));
1497 if (ret
->sessions
== NULL
) goto err
;
1498 ret
->cert_store
=X509_STORE_new();
1499 if (ret
->cert_store
== NULL
) goto err
;
1501 ssl_create_cipher_list(ret
->method
,
1502 &ret
->cipher_list
,&ret
->cipher_list_by_id
,
1503 SSL_DEFAULT_CIPHER_LIST
);
1504 if (ret
->cipher_list
== NULL
1505 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0)
1507 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_LIBRARY_HAS_NO_CIPHERS
);
1511 ret
->param
= X509_VERIFY_PARAM_new();
1515 if ((ret
->rsa_md5
=EVP_get_digestbyname("ssl2-md5")) == NULL
)
1517 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES
);
1520 if ((ret
->md5
=EVP_get_digestbyname("ssl3-md5")) == NULL
)
1522 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
1525 if ((ret
->sha1
=EVP_get_digestbyname("ssl3-sha1")) == NULL
)
1527 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
1531 if ((ret
->client_CA
=sk_X509_NAME_new_null()) == NULL
)
1534 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
);
1536 ret
->extra_certs
=NULL
;
1537 ret
->comp_methods
=SSL_COMP_get_compression_methods();
1539 ret
->max_send_fragment
= SSL3_RT_MAX_PLAIN_LENGTH
;
1541 #ifndef OPENSSL_NO_TLSEXT
1542 ret
->tlsext_servername_callback
= 0;
1543 ret
->tlsext_servername_arg
= NULL
;
1545 #ifndef OPENSSL_NO_PSK
1546 ret
->psk_identity_hint
=NULL
;
1547 ret
->psk_client_callback
=NULL
;
1548 ret
->psk_server_callback
=NULL
;
1552 SSLerr(SSL_F_SSL_CTX_NEW
,ERR_R_MALLOC_FAILURE
);
1554 if (ret
!= NULL
) SSL_CTX_free(ret
);
1559 static void SSL_COMP_free(SSL_COMP
*comp
)
1560 { OPENSSL_free(comp
); }
1563 void SSL_CTX_free(SSL_CTX
*a
)
1567 if (a
== NULL
) return;
1569 i
=CRYPTO_add(&a
->references
,-1,CRYPTO_LOCK_SSL_CTX
);
1571 REF_PRINT("SSL_CTX",a
);
1577 fprintf(stderr
,"SSL_CTX_free, bad reference count\n");
1583 X509_VERIFY_PARAM_free(a
->param
);
1586 * Free internal session cache. However: the remove_cb() may reference
1587 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1588 * after the sessions were flushed.
1589 * As the ex_data handling routines might also touch the session cache,
1590 * the most secure solution seems to be: empty (flush) the cache, then
1591 * free ex_data, then finally free the cache.
1592 * (See ticket [openssl.org #212].)
1594 if (a
->sessions
!= NULL
)
1595 SSL_CTX_flush_sessions(a
,0);
1597 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
1599 if (a
->sessions
!= NULL
)
1600 lh_free(a
->sessions
);
1602 if (a
->cert_store
!= NULL
)
1603 X509_STORE_free(a
->cert_store
);
1604 if (a
->cipher_list
!= NULL
)
1605 sk_SSL_CIPHER_free(a
->cipher_list
);
1606 if (a
->cipher_list_by_id
!= NULL
)
1607 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
1608 if (a
->cert
!= NULL
)
1609 ssl_cert_free(a
->cert
);
1610 if (a
->client_CA
!= NULL
)
1611 sk_X509_NAME_pop_free(a
->client_CA
,X509_NAME_free
);
1612 if (a
->extra_certs
!= NULL
)
1613 sk_X509_pop_free(a
->extra_certs
,X509_free
);
1614 #if 0 /* This should never be done, since it removes a global database */
1615 if (a
->comp_methods
!= NULL
)
1616 sk_SSL_COMP_pop_free(a
->comp_methods
,SSL_COMP_free
);
1618 a
->comp_methods
= NULL
;
1621 #ifndef OPENSSL_NO_PSK
1622 if (a
->psk_identity_hint
)
1623 OPENSSL_free(a
->psk_identity_hint
);
1628 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
1630 ctx
->default_passwd_callback
=cb
;
1633 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
,void *u
)
1635 ctx
->default_passwd_callback_userdata
=u
;
1638 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
, int (*cb
)(X509_STORE_CTX
*,void *), void *arg
)
1640 ctx
->app_verify_callback
=cb
;
1641 ctx
->app_verify_arg
=arg
;
1644 void SSL_CTX_set_verify(SSL_CTX
*ctx
,int mode
,int (*cb
)(int, X509_STORE_CTX
*))
1646 ctx
->verify_mode
=mode
;
1647 ctx
->default_verify_callback
=cb
;
1650 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
,int depth
)
1652 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
1655 void ssl_set_cert_masks(CERT
*c
, SSL_CIPHER
*cipher
)
1658 int rsa_enc
,rsa_tmp
,rsa_sign
,dh_tmp
,dh_rsa
,dh_dsa
,dsa_sign
;
1659 int rsa_enc_export
,dh_rsa_export
,dh_dsa_export
;
1660 int rsa_tmp_export
,dh_tmp_export
,kl
;
1661 unsigned long mask_k
,mask_a
,emask_k
,emask_a
;
1662 int have_ecc_cert
, ecdh_ok
, ecdsa_ok
, ecc_pkey_size
;
1663 #ifndef OPENSSL_NO_ECDH
1667 EVP_PKEY
*ecc_pkey
= NULL
;
1668 int signature_nid
= 0;
1670 if (c
== NULL
) return;
1672 kl
=SSL_C_EXPORT_PKEYLENGTH(cipher
);
1674 #ifndef OPENSSL_NO_RSA
1675 rsa_tmp
=(c
->rsa_tmp
!= NULL
|| c
->rsa_tmp_cb
!= NULL
);
1676 rsa_tmp_export
=(c
->rsa_tmp_cb
!= NULL
||
1677 (rsa_tmp
&& RSA_size(c
->rsa_tmp
)*8 <= kl
));
1679 rsa_tmp
=rsa_tmp_export
=0;
1681 #ifndef OPENSSL_NO_DH
1682 dh_tmp
=(c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
);
1683 dh_tmp_export
=(c
->dh_tmp_cb
!= NULL
||
1684 (dh_tmp
&& DH_size(c
->dh_tmp
)*8 <= kl
));
1686 dh_tmp
=dh_tmp_export
=0;
1689 #ifndef OPENSSL_NO_ECDH
1690 have_ecdh_tmp
=(c
->ecdh_tmp
!= NULL
|| c
->ecdh_tmp_cb
!= NULL
);
1692 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_ENC
]);
1693 rsa_enc
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1694 rsa_enc_export
=(rsa_enc
&& EVP_PKEY_size(cpk
->privatekey
)*8 <= kl
);
1695 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_SIGN
]);
1696 rsa_sign
=(cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1697 cpk
= &(c
->pkeys
[SSL_PKEY_DSA_SIGN
]);
1698 dsa_sign
=(cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1699 cpk
= &(c
->pkeys
[SSL_PKEY_DH_RSA
]);
1700 dh_rsa
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1701 dh_rsa_export
=(dh_rsa
&& EVP_PKEY_size(cpk
->privatekey
)*8 <= kl
);
1702 cpk
= &(c
->pkeys
[SSL_PKEY_DH_DSA
]);
1703 /* FIX THIS EAY EAY EAY */
1704 dh_dsa
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1705 dh_dsa_export
=(dh_dsa
&& EVP_PKEY_size(cpk
->privatekey
)*8 <= kl
);
1706 cpk
= &(c
->pkeys
[SSL_PKEY_ECC
]);
1707 have_ecc_cert
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1714 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1715 rsa_tmp
,rsa_tmp_export
,dh_tmp
,have_ecdh_tmp
,
1716 rsa_enc
,rsa_enc_export
,rsa_sign
,dsa_sign
,dh_rsa
,dh_dsa
);
1719 if (rsa_enc
|| (rsa_tmp
&& rsa_sign
))
1721 if (rsa_enc_export
|| (rsa_tmp_export
&& (rsa_sign
|| rsa_enc
)))
1725 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1726 if ( (dh_tmp
|| dh_rsa
|| dh_dsa
) &&
1727 (rsa_enc
|| rsa_sign
|| dsa_sign
))
1729 if ((dh_tmp_export
|| dh_rsa_export
|| dh_dsa_export
) &&
1730 (rsa_enc
|| rsa_sign
|| dsa_sign
))
1740 if (dh_rsa
) mask_k
|=SSL_kDHr
;
1741 if (dh_rsa_export
) emask_k
|=SSL_kDHr
;
1743 if (dh_dsa
) mask_k
|=SSL_kDHd
;
1744 if (dh_dsa_export
) emask_k
|=SSL_kDHd
;
1746 if (rsa_enc
|| rsa_sign
)
1761 #ifndef OPENSSL_NO_KRB5
1768 /* An ECC certificate may be usable for ECDH and/or
1769 * ECDSA cipher suites depending on the key usage extension.
1773 /* This call populates extension flags (ex_flags) */
1774 x
= (c
->pkeys
[SSL_PKEY_ECC
]).x509
;
1775 X509_check_purpose(x
, -1, 0);
1776 ecdh_ok
= (x
->ex_flags
& EXFLAG_KUSAGE
) ?
1777 (x
->ex_kusage
& X509v3_KU_KEY_AGREEMENT
) : 1;
1778 ecdsa_ok
= (x
->ex_flags
& EXFLAG_KUSAGE
) ?
1779 (x
->ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
) : 1;
1780 ecc_pkey
= X509_get_pubkey(x
);
1781 ecc_pkey_size
= (ecc_pkey
!= NULL
) ?
1782 EVP_PKEY_bits(ecc_pkey
) : 0;
1783 EVP_PKEY_free(ecc_pkey
);
1784 if ((x
->sig_alg
) && (x
->sig_alg
->algorithm
))
1785 signature_nid
= OBJ_obj2nid(x
->sig_alg
->algorithm
);
1786 #ifndef OPENSSL_NO_ECDH
1789 const char *sig
= OBJ_nid2ln(signature_nid
);
1796 if (strstr(sig
, "WithRSA"))
1800 if (ecc_pkey_size
<= 163)
1802 emask_k
|=SSL_kECDHr
;
1807 if (signature_nid
== NID_ecdsa_with_SHA1
)
1811 if (ecc_pkey_size
<= 163)
1813 emask_k
|=SSL_kECDHe
;
1819 #ifndef OPENSSL_NO_ECDSA
1823 emask_a
|=SSL_aECDSA
;
1828 #ifndef OPENSSL_NO_ECDH
1832 emask_k
|=SSL_kEECDH
;
1836 #ifndef OPENSSL_NO_PSK
1839 emask_k
|= SSL_kPSK
;
1840 emask_a
|= SSL_aPSK
;
1845 c
->export_mask_k
=emask_k
;
1846 c
->export_mask_a
=emask_a
;
1850 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
1851 #define ku_reject(x, usage) \
1852 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
1854 int ssl_check_srvr_ecc_cert_and_alg(X509
*x
, SSL_CIPHER
*cs
)
1856 unsigned long alg_k
, alg_a
;
1857 EVP_PKEY
*pkey
= NULL
;
1859 int signature_nid
= 0;
1861 alg_k
= cs
->algorithm_mkey
;
1862 alg_a
= cs
->algorithm_auth
;
1864 if (SSL_C_IS_EXPORT(cs
))
1866 /* ECDH key length in export ciphers must be <= 163 bits */
1867 pkey
= X509_get_pubkey(x
);
1868 if (pkey
== NULL
) return 0;
1869 keysize
= EVP_PKEY_bits(pkey
);
1870 EVP_PKEY_free(pkey
);
1871 if (keysize
> 163) return 0;
1874 /* This call populates the ex_flags field correctly */
1875 X509_check_purpose(x
, -1, 0);
1876 if ((x
->sig_alg
) && (x
->sig_alg
->algorithm
))
1877 signature_nid
= OBJ_obj2nid(x
->sig_alg
->algorithm
);
1878 if (alg_k
& SSL_kECDHe
|| alg_k
& SSL_kECDHr
)
1880 /* key usage, if present, must allow key agreement */
1881 if (ku_reject(x
, X509v3_KU_KEY_AGREEMENT
))
1883 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT
);
1886 if (alg_k
& SSL_kECDHe
)
1888 /* signature alg must be ECDSA */
1889 if (signature_nid
!= NID_ecdsa_with_SHA1
)
1891 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE
);
1895 if (alg_k
& SSL_kECDHr
)
1897 /* signature alg must be RSA */
1899 const char *sig
= OBJ_nid2ln(signature_nid
);
1905 if (strstr(sig
, "WithRSA") == NULL
)
1907 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE
);
1912 if (alg_a
& SSL_aECDSA
)
1914 /* key usage, if present, must allow signing */
1915 if (ku_reject(x
, X509v3_KU_DIGITAL_SIGNATURE
))
1917 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG
, SSL_R_ECC_CERT_NOT_FOR_SIGNING
);
1922 return 1; /* all checks are ok */
1925 /* THIS NEEDS CLEANING UP */
1926 X509
*ssl_get_server_send_cert(SSL
*s
)
1928 unsigned long alg_k
,alg_a
,mask_k
,mask_a
;
1933 ssl_set_cert_masks(c
, s
->s3
->tmp
.new_cipher
);
1934 is_export
=SSL_C_IS_EXPORT(s
->s3
->tmp
.new_cipher
);
1937 mask_k
= c
->export_mask_k
;
1938 mask_a
= c
->export_mask_a
;
1946 alg_k
= s
->s3
->tmp
.new_cipher
->algorithm_mkey
;
1947 alg_a
= s
->s3
->tmp
.new_cipher
->algorithm_auth
;
1949 if (alg_k
& (SSL_kECDHr
|SSL_kECDHe
))
1951 /* we don't need to look at SSL_kEECDH
1952 * since no certificate is needed for
1953 * anon ECDH and for authenticated
1954 * EECDH, the check for the auth
1955 * algorithm will set i correctly
1956 * NOTE: For ECDH-RSA, we need an ECC
1957 * not an RSA cert but for EECDH-RSA
1958 * we need an RSA cert. Placing the
1959 * checks for SSL_kECDH before RSA
1960 * checks ensures the correct cert is chosen.
1964 else if (alg_a
& SSL_aECDSA
)
1968 else if (alg_k
& SSL_kDHr
)
1970 else if (alg_k
& SSL_kDHd
)
1972 else if (alg_a
& SSL_aDSS
)
1973 i
=SSL_PKEY_DSA_SIGN
;
1974 else if (alg_a
& SSL_aRSA
)
1976 if (c
->pkeys
[SSL_PKEY_RSA_ENC
].x509
== NULL
)
1977 i
=SSL_PKEY_RSA_SIGN
;
1981 else if (alg_a
& SSL_aKRB5
)
1983 /* VRS something else here? */
1986 else /* if (alg_a & SSL_aNULL) */
1988 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT
,ERR_R_INTERNAL_ERROR
);
1991 if (c
->pkeys
[i
].x509
== NULL
) return(NULL
);
1993 return(c
->pkeys
[i
].x509
);
1996 EVP_PKEY
*ssl_get_sign_pkey(SSL
*s
,SSL_CIPHER
*cipher
)
1998 unsigned long alg_a
;
2001 alg_a
= cipher
->algorithm_auth
;
2004 if ((alg_a
& SSL_aDSS
) &&
2005 (c
->pkeys
[SSL_PKEY_DSA_SIGN
].privatekey
!= NULL
))
2006 return(c
->pkeys
[SSL_PKEY_DSA_SIGN
].privatekey
);
2007 else if (alg_a
& SSL_aRSA
)
2009 if (c
->pkeys
[SSL_PKEY_RSA_SIGN
].privatekey
!= NULL
)
2010 return(c
->pkeys
[SSL_PKEY_RSA_SIGN
].privatekey
);
2011 else if (c
->pkeys
[SSL_PKEY_RSA_ENC
].privatekey
!= NULL
)
2012 return(c
->pkeys
[SSL_PKEY_RSA_ENC
].privatekey
);
2016 else if ((alg_a
& SSL_aECDSA
) &&
2017 (c
->pkeys
[SSL_PKEY_ECC
].privatekey
!= NULL
))
2018 return(c
->pkeys
[SSL_PKEY_ECC
].privatekey
);
2019 else /* if (alg_a & SSL_aNULL) */
2021 SSLerr(SSL_F_SSL_GET_SIGN_PKEY
,ERR_R_INTERNAL_ERROR
);
2026 void ssl_update_cache(SSL
*s
,int mode
)
2030 /* If the session_id_length is 0, we are not supposed to cache it,
2031 * and it would be rather hard to do anyway :-) */
2032 if (s
->session
->session_id_length
== 0) return;
2034 i
=s
->session_ctx
->session_cache_mode
;
2035 if ((i
& mode
) && (!s
->hit
)
2036 && ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
)
2037 || SSL_CTX_add_session(s
->session_ctx
,s
->session
))
2038 && (s
->session_ctx
->new_session_cb
!= NULL
))
2040 CRYPTO_add(&s
->session
->references
,1,CRYPTO_LOCK_SSL_SESSION
);
2041 if (!s
->session_ctx
->new_session_cb(s
,s
->session
))
2042 SSL_SESSION_free(s
->session
);
2045 /* auto flush every 255 connections */
2046 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) &&
2047 ((i
& mode
) == mode
))
2049 if ( (((mode
& SSL_SESS_CACHE_CLIENT
)
2050 ?s
->session_ctx
->stats
.sess_connect_good
2051 :s
->session_ctx
->stats
.sess_accept_good
) & 0xff) == 0xff)
2053 SSL_CTX_flush_sessions(s
->session_ctx
,(unsigned long)time(NULL
));
2058 const SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
2063 int SSL_set_ssl_method(SSL
*s
, const SSL_METHOD
*meth
)
2068 if (s
->method
!= meth
)
2070 if (s
->handshake_func
!= NULL
)
2071 conn
=(s
->handshake_func
== s
->method
->ssl_connect
);
2073 if (s
->method
->version
== meth
->version
)
2077 s
->method
->ssl_free(s
);
2079 ret
=s
->method
->ssl_new(s
);
2083 s
->handshake_func
=meth
->ssl_connect
;
2085 s
->handshake_func
=meth
->ssl_accept
;
2090 int SSL_get_error(const SSL
*s
,int i
)
2096 if (i
> 0) return(SSL_ERROR_NONE
);
2098 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2099 * etc, where we do encode the error */
2100 if ((l
=ERR_peek_error()) != 0)
2102 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
2103 return(SSL_ERROR_SYSCALL
);
2105 return(SSL_ERROR_SSL
);
2108 if ((i
< 0) && SSL_want_read(s
))
2110 bio
=SSL_get_rbio(s
);
2111 if (BIO_should_read(bio
))
2112 return(SSL_ERROR_WANT_READ
);
2113 else if (BIO_should_write(bio
))
2114 /* This one doesn't make too much sense ... We never try
2115 * to write to the rbio, and an application program where
2116 * rbio and wbio are separate couldn't even know what it
2118 * However if we ever set s->rwstate incorrectly
2119 * (so that we have SSL_want_read(s) instead of
2120 * SSL_want_write(s)) and rbio and wbio *are* the same,
2121 * this test works around that bug; so it might be safer
2123 return(SSL_ERROR_WANT_WRITE
);
2124 else if (BIO_should_io_special(bio
))
2126 reason
=BIO_get_retry_reason(bio
);
2127 if (reason
== BIO_RR_CONNECT
)
2128 return(SSL_ERROR_WANT_CONNECT
);
2129 else if (reason
== BIO_RR_ACCEPT
)
2130 return(SSL_ERROR_WANT_ACCEPT
);
2132 return(SSL_ERROR_SYSCALL
); /* unknown */
2136 if ((i
< 0) && SSL_want_write(s
))
2138 bio
=SSL_get_wbio(s
);
2139 if (BIO_should_write(bio
))
2140 return(SSL_ERROR_WANT_WRITE
);
2141 else if (BIO_should_read(bio
))
2142 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2143 return(SSL_ERROR_WANT_READ
);
2144 else if (BIO_should_io_special(bio
))
2146 reason
=BIO_get_retry_reason(bio
);
2147 if (reason
== BIO_RR_CONNECT
)
2148 return(SSL_ERROR_WANT_CONNECT
);
2149 else if (reason
== BIO_RR_ACCEPT
)
2150 return(SSL_ERROR_WANT_ACCEPT
);
2152 return(SSL_ERROR_SYSCALL
);
2155 if ((i
< 0) && SSL_want_x509_lookup(s
))
2157 return(SSL_ERROR_WANT_X509_LOOKUP
);
2162 if (s
->version
== SSL2_VERSION
)
2164 /* assume it is the socket being closed */
2165 return(SSL_ERROR_ZERO_RETURN
);
2169 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
2170 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
2171 return(SSL_ERROR_ZERO_RETURN
);
2174 return(SSL_ERROR_SYSCALL
);
2177 int SSL_do_handshake(SSL
*s
)
2181 if (s
->handshake_func
== NULL
)
2183 SSLerr(SSL_F_SSL_DO_HANDSHAKE
,SSL_R_CONNECTION_TYPE_NOT_SET
);
2187 s
->method
->ssl_renegotiate_check(s
);
2189 if (SSL_in_init(s
) || SSL_in_before(s
))
2191 ret
=s
->handshake_func(s
);
2196 /* For the next 2 functions, SSL_clear() sets shutdown and so
2197 * one of these calls will reset it */
2198 void SSL_set_accept_state(SSL
*s
)
2202 s
->state
=SSL_ST_ACCEPT
|SSL_ST_BEFORE
;
2203 s
->handshake_func
=s
->method
->ssl_accept
;
2204 /* clear the current cipher */
2205 ssl_clear_cipher_ctx(s
);
2208 void SSL_set_connect_state(SSL
*s
)
2212 s
->state
=SSL_ST_CONNECT
|SSL_ST_BEFORE
;
2213 s
->handshake_func
=s
->method
->ssl_connect
;
2214 /* clear the current cipher */
2215 ssl_clear_cipher_ctx(s
);
2218 int ssl_undefined_function(SSL
*s
)
2220 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2224 int ssl_undefined_void_function(void)
2226 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2230 int ssl_undefined_const_function(const SSL
*s
)
2232 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2236 SSL_METHOD
*ssl_bad_method(int ver
)
2238 SSLerr(SSL_F_SSL_BAD_METHOD
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2242 const char *SSL_get_version(const SSL
*s
)
2244 if (s
->version
== TLS1_VERSION
)
2246 else if (s
->version
== SSL3_VERSION
)
2248 else if (s
->version
== SSL2_VERSION
)
2254 SSL
*SSL_dup(SSL
*s
)
2256 STACK_OF(X509_NAME
) *sk
;
2261 if ((ret
=SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
2264 ret
->version
= s
->version
;
2265 ret
->type
= s
->type
;
2266 ret
->method
= s
->method
;
2268 if (s
->session
!= NULL
)
2270 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2271 SSL_copy_session_id(ret
,s
);
2275 /* No session has been established yet, so we have to expect
2276 * that s->cert or ret->cert will be changed later --
2277 * they should not both point to the same object,
2278 * and thus we can't use SSL_copy_session_id. */
2280 ret
->method
->ssl_free(ret
);
2281 ret
->method
= s
->method
;
2282 ret
->method
->ssl_new(ret
);
2284 if (s
->cert
!= NULL
)
2286 if (ret
->cert
!= NULL
)
2288 ssl_cert_free(ret
->cert
);
2290 ret
->cert
= ssl_cert_dup(s
->cert
);
2291 if (ret
->cert
== NULL
)
2295 SSL_set_session_id_context(ret
,
2296 s
->sid_ctx
, s
->sid_ctx_length
);
2299 ret
->options
=s
->options
;
2301 SSL_set_max_cert_list(ret
,SSL_get_max_cert_list(s
));
2302 SSL_set_read_ahead(ret
,SSL_get_read_ahead(s
));
2303 ret
->msg_callback
= s
->msg_callback
;
2304 ret
->msg_callback_arg
= s
->msg_callback_arg
;
2305 SSL_set_verify(ret
,SSL_get_verify_mode(s
),
2306 SSL_get_verify_callback(s
));
2307 SSL_set_verify_depth(ret
,SSL_get_verify_depth(s
));
2308 ret
->generate_session_id
= s
->generate_session_id
;
2310 SSL_set_info_callback(ret
,SSL_get_info_callback(s
));
2312 ret
->debug
=s
->debug
;
2314 /* copy app data, a little dangerous perhaps */
2315 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
2318 /* setup rbio, and wbio */
2319 if (s
->rbio
!= NULL
)
2321 if (!BIO_dup_state(s
->rbio
,(char *)&ret
->rbio
))
2324 if (s
->wbio
!= NULL
)
2326 if (s
->wbio
!= s
->rbio
)
2328 if (!BIO_dup_state(s
->wbio
,(char *)&ret
->wbio
))
2332 ret
->wbio
=ret
->rbio
;
2334 ret
->rwstate
= s
->rwstate
;
2335 ret
->in_handshake
= s
->in_handshake
;
2336 ret
->handshake_func
= s
->handshake_func
;
2337 ret
->server
= s
->server
;
2338 ret
->new_session
= s
->new_session
;
2339 ret
->quiet_shutdown
= s
->quiet_shutdown
;
2340 ret
->shutdown
=s
->shutdown
;
2341 ret
->state
=s
->state
; /* SSL_dup does not really work at any state, though */
2342 ret
->rstate
=s
->rstate
;
2343 ret
->init_num
= 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2346 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
2348 /* dup the cipher_list and cipher_list_by_id stacks */
2349 if (s
->cipher_list
!= NULL
)
2351 if ((ret
->cipher_list
=sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
2354 if (s
->cipher_list_by_id
!= NULL
)
2355 if ((ret
->cipher_list_by_id
=sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
2359 /* Dup the client_CA list */
2360 if (s
->client_CA
!= NULL
)
2362 if ((sk
=sk_X509_NAME_dup(s
->client_CA
)) == NULL
) goto err
;
2364 for (i
=0; i
<sk_X509_NAME_num(sk
); i
++)
2366 xn
=sk_X509_NAME_value(sk
,i
);
2367 if (sk_X509_NAME_set(sk
,i
,X509_NAME_dup(xn
)) == NULL
)
2378 if (ret
!= NULL
) SSL_free(ret
);
2384 void ssl_clear_cipher_ctx(SSL
*s
)
2386 if (s
->enc_read_ctx
!= NULL
)
2388 EVP_CIPHER_CTX_cleanup(s
->enc_read_ctx
);
2389 OPENSSL_free(s
->enc_read_ctx
);
2390 s
->enc_read_ctx
=NULL
;
2392 if (s
->enc_write_ctx
!= NULL
)
2394 EVP_CIPHER_CTX_cleanup(s
->enc_write_ctx
);
2395 OPENSSL_free(s
->enc_write_ctx
);
2396 s
->enc_write_ctx
=NULL
;
2398 #ifndef OPENSSL_NO_COMP
2399 if (s
->expand
!= NULL
)
2401 COMP_CTX_free(s
->expand
);
2404 if (s
->compress
!= NULL
)
2406 COMP_CTX_free(s
->compress
);
2412 /* Fix this function so that it takes an optional type parameter */
2413 X509
*SSL_get_certificate(const SSL
*s
)
2415 if (s
->cert
!= NULL
)
2416 return(s
->cert
->key
->x509
);
2421 /* Fix this function so that it takes an optional type parameter */
2422 EVP_PKEY
*SSL_get_privatekey(SSL
*s
)
2424 if (s
->cert
!= NULL
)
2425 return(s
->cert
->key
->privatekey
);
2430 SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
2432 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
2433 return(s
->session
->cipher
);
2436 #ifdef OPENSSL_NO_COMP
2437 const void *SSL_get_current_compression(SSL
*s
)
2441 const void *SSL_get_current_expansion(SSL
*s
)
2447 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
2449 if (s
->compress
!= NULL
)
2450 return(s
->compress
->meth
);
2454 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
2456 if (s
->expand
!= NULL
)
2457 return(s
->expand
->meth
);
2462 int ssl_init_wbio_buffer(SSL
*s
,int push
)
2466 if (s
->bbio
== NULL
)
2468 bbio
=BIO_new(BIO_f_buffer());
2469 if (bbio
== NULL
) return(0);
2475 if (s
->bbio
== s
->wbio
)
2476 s
->wbio
=BIO_pop(s
->wbio
);
2478 (void)BIO_reset(bbio
);
2479 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2480 if (!BIO_set_read_buffer_size(bbio
,1))
2482 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
,ERR_R_BUF_LIB
);
2487 if (s
->wbio
!= bbio
)
2488 s
->wbio
=BIO_push(bbio
,s
->wbio
);
2492 if (s
->wbio
== bbio
)
2493 s
->wbio
=BIO_pop(bbio
);
2498 void ssl_free_wbio_buffer(SSL
*s
)
2500 if (s
->bbio
== NULL
) return;
2502 if (s
->bbio
== s
->wbio
)
2504 /* remove buffering */
2505 s
->wbio
=BIO_pop(s
->wbio
);
2506 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2507 assert(s
->wbio
!= NULL
);
2514 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
,int mode
)
2516 ctx
->quiet_shutdown
=mode
;
2519 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
2521 return(ctx
->quiet_shutdown
);
2524 void SSL_set_quiet_shutdown(SSL
*s
,int mode
)
2526 s
->quiet_shutdown
=mode
;
2529 int SSL_get_quiet_shutdown(const SSL
*s
)
2531 return(s
->quiet_shutdown
);
2534 void SSL_set_shutdown(SSL
*s
,int mode
)
2539 int SSL_get_shutdown(const SSL
*s
)
2541 return(s
->shutdown
);
2544 int SSL_version(const SSL
*s
)
2549 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
2554 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
* ctx
)
2556 if (ssl
->ctx
== ctx
)
2559 ctx
= ssl
->initial_ctx
;
2560 if (ssl
->cert
!= NULL
)
2561 ssl_cert_free(ssl
->cert
);
2562 ssl
->cert
= ssl_cert_dup(ctx
->cert
);
2563 CRYPTO_add(&ctx
->references
,1,CRYPTO_LOCK_SSL_CTX
);
2564 if (ssl
->ctx
!= NULL
)
2565 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
2570 #ifndef OPENSSL_NO_STDIO
2571 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
2573 return(X509_STORE_set_default_paths(ctx
->cert_store
));
2576 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
2579 return(X509_STORE_load_locations(ctx
->cert_store
,CAfile
,CApath
));
2583 void SSL_set_info_callback(SSL
*ssl
,
2584 void (*cb
)(const SSL
*ssl
,int type
,int val
))
2586 ssl
->info_callback
=cb
;
2589 /* One compiler (Diab DCC) doesn't like argument names in returned
2590 function pointer. */
2591 void (*SSL_get_info_callback(const SSL
*ssl
))(const SSL
* /*ssl*/,int /*type*/,int /*val*/)
2593 return ssl
->info_callback
;
2596 int SSL_state(const SSL
*ssl
)
2601 void SSL_set_verify_result(SSL
*ssl
,long arg
)
2603 ssl
->verify_result
=arg
;
2606 long SSL_get_verify_result(const SSL
*ssl
)
2608 return(ssl
->verify_result
);
2611 int SSL_get_ex_new_index(long argl
,void *argp
,CRYPTO_EX_new
*new_func
,
2612 CRYPTO_EX_dup
*dup_func
,CRYPTO_EX_free
*free_func
)
2614 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL
, argl
, argp
,
2615 new_func
, dup_func
, free_func
);
2618 int SSL_set_ex_data(SSL
*s
,int idx
,void *arg
)
2620 return(CRYPTO_set_ex_data(&s
->ex_data
,idx
,arg
));
2623 void *SSL_get_ex_data(const SSL
*s
,int idx
)
2625 return(CRYPTO_get_ex_data(&s
->ex_data
,idx
));
2628 int SSL_CTX_get_ex_new_index(long argl
,void *argp
,CRYPTO_EX_new
*new_func
,
2629 CRYPTO_EX_dup
*dup_func
,CRYPTO_EX_free
*free_func
)
2631 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX
, argl
, argp
,
2632 new_func
, dup_func
, free_func
);
2635 int SSL_CTX_set_ex_data(SSL_CTX
*s
,int idx
,void *arg
)
2637 return(CRYPTO_set_ex_data(&s
->ex_data
,idx
,arg
));
2640 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
,int idx
)
2642 return(CRYPTO_get_ex_data(&s
->ex_data
,idx
));
2650 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
2652 return(ctx
->cert_store
);
2655 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
,X509_STORE
*store
)
2657 if (ctx
->cert_store
!= NULL
)
2658 X509_STORE_free(ctx
->cert_store
);
2659 ctx
->cert_store
=store
;
2662 int SSL_want(const SSL
*s
)
2668 * \brief Set the callback for generating temporary RSA keys.
2669 * \param ctx the SSL context.
2670 * \param cb the callback
2673 #ifndef OPENSSL_NO_RSA
2674 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX
*ctx
,RSA
*(*cb
)(SSL
*ssl
,
2678 SSL_CTX_callback_ctrl(ctx
,SSL_CTRL_SET_TMP_RSA_CB
,(void (*)(void))cb
);
2681 void SSL_set_tmp_rsa_callback(SSL
*ssl
,RSA
*(*cb
)(SSL
*ssl
,
2685 SSL_callback_ctrl(ssl
,SSL_CTRL_SET_TMP_RSA_CB
,(void (*)(void))cb
);
2691 * \brief The RSA temporary key callback function.
2692 * \param ssl the SSL session.
2693 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2694 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2695 * of the required key in bits.
2696 * \return the temporary RSA key.
2697 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2700 RSA
*cb(SSL
*ssl
,int is_export
,int keylength
)
2705 * \brief Set the callback for generating temporary DH keys.
2706 * \param ctx the SSL context.
2707 * \param dh the callback
2710 #ifndef OPENSSL_NO_DH
2711 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,DH
*(*dh
)(SSL
*ssl
,int is_export
,
2714 SSL_CTX_callback_ctrl(ctx
,SSL_CTRL_SET_TMP_DH_CB
,(void (*)(void))dh
);
2717 void SSL_set_tmp_dh_callback(SSL
*ssl
,DH
*(*dh
)(SSL
*ssl
,int is_export
,
2720 SSL_callback_ctrl(ssl
,SSL_CTRL_SET_TMP_DH_CB
,(void (*)(void))dh
);
2724 #ifndef OPENSSL_NO_ECDH
2725 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX
*ctx
,EC_KEY
*(*ecdh
)(SSL
*ssl
,int is_export
,
2728 SSL_CTX_callback_ctrl(ctx
,SSL_CTRL_SET_TMP_ECDH_CB
,(void (*)(void))ecdh
);
2731 void SSL_set_tmp_ecdh_callback(SSL
*ssl
,EC_KEY
*(*ecdh
)(SSL
*ssl
,int is_export
,
2734 SSL_callback_ctrl(ssl
,SSL_CTRL_SET_TMP_ECDH_CB
,(void (*)(void))ecdh
);
2738 #ifndef OPENSSL_NO_PSK
2739 int SSL_CTX_use_psk_identity_hint(SSL_CTX
*ctx
, const char *identity_hint
)
2741 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
)
2743 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
2746 if (ctx
->psk_identity_hint
!= NULL
)
2747 OPENSSL_free(ctx
->psk_identity_hint
);
2748 if (identity_hint
!= NULL
)
2750 ctx
->psk_identity_hint
= BUF_strdup(identity_hint
);
2751 if (ctx
->psk_identity_hint
== NULL
)
2755 ctx
->psk_identity_hint
= NULL
;
2759 int SSL_use_psk_identity_hint(SSL
*s
, const char *identity_hint
)
2764 if (s
->session
== NULL
)
2765 return 1; /* session not created yet, ignored */
2767 if (identity_hint
!= NULL
&& strlen(identity_hint
) > PSK_MAX_IDENTITY_LEN
)
2769 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT
, SSL_R_DATA_LENGTH_TOO_LONG
);
2772 if (s
->session
->psk_identity_hint
!= NULL
)
2773 OPENSSL_free(s
->session
->psk_identity_hint
);
2774 if (identity_hint
!= NULL
)
2776 s
->session
->psk_identity_hint
= BUF_strdup(identity_hint
);
2777 if (s
->session
->psk_identity_hint
== NULL
)
2781 s
->session
->psk_identity_hint
= NULL
;
2785 const char *SSL_get_psk_identity_hint(const SSL
*s
)
2787 if (s
== NULL
|| s
->session
== NULL
)
2789 return(s
->session
->psk_identity_hint
);
2792 const char *SSL_get_psk_identity(const SSL
*s
)
2794 if (s
== NULL
|| s
->session
== NULL
)
2796 return(s
->session
->psk_identity
);
2799 void SSL_set_psk_client_callback(SSL
*s
,
2800 unsigned int (*cb
)(SSL
*ssl
, const char *hint
,
2801 char *identity
, unsigned int max_identity_len
, unsigned char *psk
,
2802 unsigned int max_psk_len
))
2804 s
->psk_client_callback
= cb
;
2807 void SSL_CTX_set_psk_client_callback(SSL_CTX
*ctx
,
2808 unsigned int (*cb
)(SSL
*ssl
, const char *hint
,
2809 char *identity
, unsigned int max_identity_len
, unsigned char *psk
,
2810 unsigned int max_psk_len
))
2812 ctx
->psk_client_callback
= cb
;
2815 void SSL_set_psk_server_callback(SSL
*s
,
2816 unsigned int (*cb
)(SSL
*ssl
, const char *identity
,
2817 unsigned char *psk
, unsigned int max_psk_len
))
2819 s
->psk_server_callback
= cb
;
2822 void SSL_CTX_set_psk_server_callback(SSL_CTX
*ctx
,
2823 unsigned int (*cb
)(SSL
*ssl
, const char *identity
,
2824 unsigned char *psk
, unsigned int max_psk_len
))
2826 ctx
->psk_server_callback
= cb
;
2830 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
))
2832 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
2834 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
))
2836 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
2841 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
2842 #include "../crypto/bio/bss_file.c"
2845 IMPLEMENT_STACK_OF(SSL_CIPHER
)
2846 IMPLEMENT_STACK_OF(SSL_COMP
)