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) 1998-2001 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.
123 #include "ssl_locl.h"
124 #include "kssl_lcl.h"
125 #include <openssl/objects.h>
126 #include <openssl/lhash.h>
127 #include <openssl/x509v3.h>
128 #include <openssl/rand.h>
129 #ifndef OPENSSL_NO_DH
130 #include <openssl/dh.h>
133 const char *SSL_version_str
=OPENSSL_VERSION_TEXT
;
135 SSL3_ENC_METHOD ssl3_undef_enc_method
={
136 /* evil casts, but these functions are only called if there's a library bug */
137 (int (*)(SSL
*,int))ssl_undefined_function
,
138 (int (*)(SSL
*, unsigned char *, int))ssl_undefined_function
,
139 ssl_undefined_function
,
140 (int (*)(SSL
*, unsigned char *, unsigned char *, int))ssl_undefined_function
,
141 (int (*)(SSL
*, int))ssl_undefined_function
,
142 (int (*)(SSL
*, EVP_MD_CTX
*, EVP_MD_CTX
*, const char*, int, unsigned char *))ssl_undefined_function
,
143 0, /* finish_mac_length */
144 (int (*)(SSL
*, EVP_MD_CTX
*, unsigned char *))ssl_undefined_function
,
145 NULL
, /* client_finished_label */
146 0, /* client_finished_label_len */
147 NULL
, /* server_finished_label */
148 0, /* server_finished_label_len */
149 (int (*)(int))ssl_undefined_function
152 int SSL_clear(SSL
*s
)
155 if (s
->method
== NULL
)
157 SSLerr(SSL_F_SSL_CLEAR
,SSL_R_NO_METHOD_SPECIFIED
);
161 if (ssl_clear_bad_session(s
))
163 SSL_SESSION_free(s
->session
);
171 #if 0 /* Disabled since version 1.10 of this file (early return not
172 * needed because SSL_clear is not called when doing renegotiation) */
173 /* This is set if we are doing dynamic renegotiation so keep
174 * the old cipher. It is sort of a SSL_clear_lite :-) */
175 if (s
->new_session
) return(1);
179 SSLerr(SSL_F_SSL_CLEAR
,ERR_R_INTERNAL_ERROR
);
186 s
->state
=SSL_ST_BEFORE
|((s
->server
)?SSL_ST_ACCEPT
:SSL_ST_CONNECT
);
188 s
->version
=s
->method
->version
;
189 s
->client_version
=s
->version
;
190 s
->rwstate
=SSL_NOTHING
;
191 s
->rstate
=SSL_ST_READ_HEADER
;
193 s
->read_ahead
=s
->ctx
->read_ahead
;
196 if (s
->init_buf
!= NULL
)
198 BUF_MEM_free(s
->init_buf
);
202 ssl_clear_cipher_ctx(s
);
207 /* Check to see if we were changed into a different method, if
208 * so, revert back if we are not doing session-id reuse. */
209 if (!s
->in_handshake
&& (s
->session
== NULL
) && (s
->method
!= s
->ctx
->method
))
211 s
->method
->ssl_free(s
);
212 s
->method
=s
->ctx
->method
;
213 if (!s
->method
->ssl_new(s
))
218 s
->method
->ssl_clear(s
);
222 /** Used to change an SSL_CTXs default SSL method type */
223 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
,SSL_METHOD
*meth
)
225 STACK_OF(SSL_CIPHER
) *sk
;
229 sk
=ssl_create_cipher_list(ctx
->method
,&(ctx
->cipher_list
),
230 &(ctx
->cipher_list_by_id
),SSL_DEFAULT_CIPHER_LIST
);
231 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0))
233 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
239 SSL
*SSL_new(SSL_CTX
*ctx
)
245 SSLerr(SSL_F_SSL_NEW
,SSL_R_NULL_SSL_CTX
);
248 if (ctx
->method
== NULL
)
250 SSLerr(SSL_F_SSL_NEW
,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
254 s
=(SSL
*)OPENSSL_malloc(sizeof(SSL
));
255 if (s
== NULL
) goto err
;
256 memset(s
,0,sizeof(SSL
));
258 #ifndef OPENSSL_NO_KRB5
259 s
->kssl_ctx
= kssl_ctx_new();
260 #endif /* OPENSSL_NO_KRB5 */
262 s
->options
=ctx
->options
;
264 s
->max_cert_list
=ctx
->max_cert_list
;
266 if (ctx
->cert
!= NULL
)
268 /* Earlier library versions used to copy the pointer to
269 * the CERT, not its contents; only when setting new
270 * parameters for the per-SSL copy, ssl_cert_new would be
271 * called (and the direct reference to the per-SSL_CTX
272 * settings would be lost, but those still were indirectly
273 * accessed for various purposes, and for that reason they
274 * used to be known as s->ctx->default_cert).
275 * Now we don't look at the SSL_CTX's CERT after having
276 * duplicated it once. */
278 s
->cert
= ssl_cert_dup(ctx
->cert
);
283 s
->cert
=NULL
; /* Cannot really happen (see SSL_CTX_new) */
285 s
->read_ahead
=ctx
->read_ahead
;
286 s
->msg_callback
=ctx
->msg_callback
;
287 s
->msg_callback_arg
=ctx
->msg_callback_arg
;
288 s
->verify_mode
=ctx
->verify_mode
;
290 s
->verify_depth
=ctx
->verify_depth
;
292 s
->sid_ctx_length
=ctx
->sid_ctx_length
;
293 OPENSSL_assert(s
->sid_ctx_length
<= sizeof s
->sid_ctx
);
294 memcpy(&s
->sid_ctx
,&ctx
->sid_ctx
,sizeof(s
->sid_ctx
));
295 s
->verify_callback
=ctx
->default_verify_callback
;
296 s
->generate_session_id
=ctx
->generate_session_id
;
298 s
->param
= X509_VERIFY_PARAM_new();
301 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
303 s
->purpose
= ctx
->purpose
;
304 s
->trust
= ctx
->trust
;
306 s
->quiet_shutdown
=ctx
->quiet_shutdown
;
308 CRYPTO_add(&ctx
->references
,1,CRYPTO_LOCK_SSL_CTX
);
310 #ifndef OPENSSL_NO_TLSEXT
311 s
->tlsext_debug_cb
= 0;
312 s
->tlsext_debug_arg
= NULL
;
313 s
->tlsext_ticket_expected
= 0;
314 CRYPTO_add(&ctx
->references
,1,CRYPTO_LOCK_SSL_CTX
);
317 s
->verify_result
=X509_V_OK
;
319 s
->method
=ctx
->method
;
321 if (!s
->method
->ssl_new(s
))
325 s
->server
=(ctx
->method
->ssl_accept
== ssl_undefined_function
)?0:1;
329 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
336 ssl_cert_free(s
->cert
);
338 SSL_CTX_free(s
->ctx
); /* decrement reference count */
341 SSLerr(SSL_F_SSL_NEW
,ERR_R_MALLOC_FAILURE
);
345 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
,const unsigned char *sid_ctx
,
346 unsigned int sid_ctx_len
)
348 if(sid_ctx_len
> sizeof ctx
->sid_ctx
)
350 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
353 ctx
->sid_ctx_length
=sid_ctx_len
;
354 memcpy(ctx
->sid_ctx
,sid_ctx
,sid_ctx_len
);
359 int SSL_set_session_id_context(SSL
*ssl
,const unsigned char *sid_ctx
,
360 unsigned int sid_ctx_len
)
362 if(sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
)
364 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
367 ssl
->sid_ctx_length
=sid_ctx_len
;
368 memcpy(ssl
->sid_ctx
,sid_ctx
,sid_ctx_len
);
373 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
375 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX
);
376 ctx
->generate_session_id
= cb
;
377 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX
);
381 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
383 CRYPTO_w_lock(CRYPTO_LOCK_SSL
);
384 ssl
->generate_session_id
= cb
;
385 CRYPTO_w_unlock(CRYPTO_LOCK_SSL
);
389 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
392 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
393 * we can "construct" a session to give us the desired check - ie. to
394 * find if there's a session in the hash table that would conflict with
395 * any new session built out of this id/id_len and the ssl_version in
396 * use by this SSL. */
399 if(id_len
> sizeof r
.session_id
)
402 r
.ssl_version
= ssl
->version
;
403 r
.session_id_length
= id_len
;
404 memcpy(r
.session_id
, id
, id_len
);
405 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
406 * callback is calling us to check the uniqueness of a shorter ID, it
407 * must be compared as a padded-out ID because that is what it will be
408 * converted to when the callback has finished choosing it. */
409 if((r
.ssl_version
== SSL2_VERSION
) &&
410 (id_len
< SSL2_SSL_SESSION_ID_LENGTH
))
412 memset(r
.session_id
+ id_len
, 0,
413 SSL2_SSL_SESSION_ID_LENGTH
- id_len
);
414 r
.session_id_length
= SSL2_SSL_SESSION_ID_LENGTH
;
417 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX
);
418 p
= (SSL_SESSION
*)lh_retrieve(ssl
->ctx
->sessions
, &r
);
419 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX
);
423 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
425 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
428 int SSL_set_purpose(SSL
*s
, int purpose
)
430 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
433 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
435 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
438 int SSL_set_trust(SSL
*s
, int trust
)
440 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
443 void SSL_free(SSL
*s
)
450 i
=CRYPTO_add(&s
->references
,-1,CRYPTO_LOCK_SSL
);
458 fprintf(stderr
,"SSL_free, bad reference count\n");
464 X509_VERIFY_PARAM_free(s
->param
);
466 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
470 /* If the buffering BIO is in place, pop it off */
471 if (s
->bbio
== s
->wbio
)
473 s
->wbio
=BIO_pop(s
->wbio
);
479 BIO_free_all(s
->rbio
);
480 if ((s
->wbio
!= NULL
) && (s
->wbio
!= s
->rbio
))
481 BIO_free_all(s
->wbio
);
483 if (s
->init_buf
!= NULL
) BUF_MEM_free(s
->init_buf
);
485 /* add extra stuff */
486 if (s
->cipher_list
!= NULL
) sk_SSL_CIPHER_free(s
->cipher_list
);
487 if (s
->cipher_list_by_id
!= NULL
) sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
489 /* Make the next call work :-) */
490 if (s
->session
!= NULL
)
492 ssl_clear_bad_session(s
);
493 SSL_SESSION_free(s
->session
);
496 ssl_clear_cipher_ctx(s
);
498 if (s
->cert
!= NULL
) ssl_cert_free(s
->cert
);
499 /* Free up if allocated */
501 if (s
->ctx
) SSL_CTX_free(s
->ctx
);
502 #ifndef OPENSSL_NO_TLSEXT
503 if (s
->initial_ctx
) SSL_CTX_free(s
->initial_ctx
);
505 if (s
->client_CA
!= NULL
)
506 sk_X509_NAME_pop_free(s
->client_CA
,X509_NAME_free
);
508 if (s
->method
!= NULL
) s
->method
->ssl_free(s
);
510 #ifndef OPENSSL_NO_KRB5
511 if (s
->kssl_ctx
!= NULL
)
512 kssl_ctx_free(s
->kssl_ctx
);
513 #endif /* OPENSSL_NO_KRB5 */
518 void SSL_set_bio(SSL
*s
,BIO
*rbio
,BIO
*wbio
)
520 /* If the output buffering BIO is still in place, remove it
524 if (s
->wbio
== s
->bbio
)
526 s
->wbio
=s
->wbio
->next_bio
;
527 s
->bbio
->next_bio
=NULL
;
530 if ((s
->rbio
!= NULL
) && (s
->rbio
!= rbio
))
531 BIO_free_all(s
->rbio
);
532 if ((s
->wbio
!= NULL
) && (s
->wbio
!= wbio
) && (s
->rbio
!= s
->wbio
))
533 BIO_free_all(s
->wbio
);
538 BIO
*SSL_get_rbio(const SSL
*s
)
541 BIO
*SSL_get_wbio(const SSL
*s
)
544 int SSL_get_fd(const SSL
*s
)
546 return(SSL_get_rfd(s
));
549 int SSL_get_rfd(const SSL
*s
)
555 r
=BIO_find_type(b
,BIO_TYPE_DESCRIPTOR
);
561 int SSL_get_wfd(const SSL
*s
)
567 r
=BIO_find_type(b
,BIO_TYPE_DESCRIPTOR
);
573 #ifndef OPENSSL_NO_SOCK
574 int SSL_set_fd(SSL
*s
,int fd
)
579 bio
=BIO_new(BIO_s_socket());
583 SSLerr(SSL_F_SSL_SET_FD
,ERR_R_BUF_LIB
);
586 BIO_set_fd(bio
,fd
,BIO_NOCLOSE
);
587 SSL_set_bio(s
,bio
,bio
);
593 int SSL_set_wfd(SSL
*s
,int fd
)
598 if ((s
->rbio
== NULL
) || (BIO_method_type(s
->rbio
) != BIO_TYPE_SOCKET
)
599 || ((int)BIO_get_fd(s
->rbio
,NULL
) != fd
))
601 bio
=BIO_new(BIO_s_socket());
604 { SSLerr(SSL_F_SSL_SET_WFD
,ERR_R_BUF_LIB
); goto err
; }
605 BIO_set_fd(bio
,fd
,BIO_NOCLOSE
);
606 SSL_set_bio(s
,SSL_get_rbio(s
),bio
);
609 SSL_set_bio(s
,SSL_get_rbio(s
),SSL_get_rbio(s
));
615 int SSL_set_rfd(SSL
*s
,int fd
)
620 if ((s
->wbio
== NULL
) || (BIO_method_type(s
->wbio
) != BIO_TYPE_SOCKET
)
621 || ((int)BIO_get_fd(s
->wbio
,NULL
) != fd
))
623 bio
=BIO_new(BIO_s_socket());
627 SSLerr(SSL_F_SSL_SET_RFD
,ERR_R_BUF_LIB
);
630 BIO_set_fd(bio
,fd
,BIO_NOCLOSE
);
631 SSL_set_bio(s
,bio
,SSL_get_wbio(s
));
634 SSL_set_bio(s
,SSL_get_wbio(s
),SSL_get_wbio(s
));
642 /* return length of latest Finished message we sent, copy to 'buf' */
643 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
649 ret
= s
->s3
->tmp
.finish_md_len
;
652 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
657 /* return length of latest Finished message we expected, copy to 'buf' */
658 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
664 ret
= s
->s3
->tmp
.peer_finish_md_len
;
667 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
673 int SSL_get_verify_mode(const SSL
*s
)
675 return(s
->verify_mode
);
678 int SSL_get_verify_depth(const SSL
*s
)
680 return X509_VERIFY_PARAM_get_depth(s
->param
);
683 int (*SSL_get_verify_callback(const SSL
*s
))(int,X509_STORE_CTX
*)
685 return(s
->verify_callback
);
688 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
690 return(ctx
->verify_mode
);
693 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
695 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
698 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
))(int,X509_STORE_CTX
*)
700 return(ctx
->default_verify_callback
);
703 void SSL_set_verify(SSL
*s
,int mode
,
704 int (*callback
)(int ok
,X509_STORE_CTX
*ctx
))
707 if (callback
!= NULL
)
708 s
->verify_callback
=callback
;
711 void SSL_set_verify_depth(SSL
*s
,int depth
)
713 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
716 void SSL_set_read_ahead(SSL
*s
,int yes
)
721 int SSL_get_read_ahead(const SSL
*s
)
723 return(s
->read_ahead
);
726 int SSL_pending(const SSL
*s
)
728 /* SSL_pending cannot work properly if read-ahead is enabled
729 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
730 * and it is impossible to fix since SSL_pending cannot report
731 * errors that may be observed while scanning the new data.
732 * (Note that SSL_pending() is often used as a boolean value,
733 * so we'd better not return -1.)
735 return(s
->method
->ssl_pending(s
));
738 X509
*SSL_get_peer_certificate(const SSL
*s
)
742 if ((s
== NULL
) || (s
->session
== NULL
))
747 if (r
== NULL
) return(r
);
749 CRYPTO_add(&r
->references
,1,CRYPTO_LOCK_X509
);
754 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
758 if ((s
== NULL
) || (s
->session
== NULL
) || (s
->session
->sess_cert
== NULL
))
761 r
=s
->session
->sess_cert
->cert_chain
;
763 /* If we are a client, cert_chain includes the peer's own
764 * certificate; if we are a server, it does not. */
769 /* Now in theory, since the calling process own 't' it should be safe to
770 * modify. We need to be able to read f without being hassled */
771 void SSL_copy_session_id(SSL
*t
,const SSL
*f
)
775 /* Do we need to to SSL locking? */
776 SSL_set_session(t
,SSL_get_session(f
));
778 /* what if we are setup as SSLv2 but want to talk SSLv3 or
780 if (t
->method
!= f
->method
)
782 t
->method
->ssl_free(t
); /* cleanup current */
783 t
->method
=f
->method
; /* change method */
784 t
->method
->ssl_new(t
); /* setup new */
790 CRYPTO_add(&f
->cert
->references
,1,CRYPTO_LOCK_SSL_CERT
);
795 if (tmp
!= NULL
) ssl_cert_free(tmp
);
796 SSL_set_session_id_context(t
,f
->sid_ctx
,f
->sid_ctx_length
);
799 /* Fix this so it checks all the valid key/cert options */
800 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
802 if ( (ctx
== NULL
) ||
803 (ctx
->cert
== NULL
) ||
804 (ctx
->cert
->key
->x509
== NULL
))
806 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,SSL_R_NO_CERTIFICATE_ASSIGNED
);
809 if (ctx
->cert
->key
->privatekey
== NULL
)
811 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
814 return(X509_check_private_key(ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
));
817 /* Fix this function so that it takes an optional type parameter */
818 int SSL_check_private_key(const SSL
*ssl
)
822 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,ERR_R_PASSED_NULL_PARAMETER
);
825 if (ssl
->cert
== NULL
)
827 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,SSL_R_NO_CERTIFICATE_ASSIGNED
);
830 if (ssl
->cert
->key
->x509
== NULL
)
832 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,SSL_R_NO_CERTIFICATE_ASSIGNED
);
835 if (ssl
->cert
->key
->privatekey
== NULL
)
837 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
840 return(X509_check_private_key(ssl
->cert
->key
->x509
,
841 ssl
->cert
->key
->privatekey
));
844 int SSL_accept(SSL
*s
)
846 if (s
->handshake_func
== 0)
847 /* Not properly initialized yet */
848 SSL_set_accept_state(s
);
850 return(s
->method
->ssl_accept(s
));
853 int SSL_connect(SSL
*s
)
855 if (s
->handshake_func
== 0)
856 /* Not properly initialized yet */
857 SSL_set_connect_state(s
);
859 return(s
->method
->ssl_connect(s
));
862 long SSL_get_default_timeout(const SSL
*s
)
864 return(s
->method
->get_timeout());
867 int SSL_read(SSL
*s
,void *buf
,int num
)
869 if (s
->handshake_func
== 0)
871 SSLerr(SSL_F_SSL_READ
, SSL_R_UNINITIALIZED
);
875 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
)
877 s
->rwstate
=SSL_NOTHING
;
880 return(s
->method
->ssl_read(s
,buf
,num
));
883 int SSL_peek(SSL
*s
,void *buf
,int num
)
885 if (s
->handshake_func
== 0)
887 SSLerr(SSL_F_SSL_PEEK
, SSL_R_UNINITIALIZED
);
891 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
)
895 return(s
->method
->ssl_peek(s
,buf
,num
));
898 int SSL_write(SSL
*s
,const void *buf
,int num
)
900 if (s
->handshake_func
== 0)
902 SSLerr(SSL_F_SSL_WRITE
, SSL_R_UNINITIALIZED
);
906 if (s
->shutdown
& SSL_SENT_SHUTDOWN
)
908 s
->rwstate
=SSL_NOTHING
;
909 SSLerr(SSL_F_SSL_WRITE
,SSL_R_PROTOCOL_IS_SHUTDOWN
);
912 return(s
->method
->ssl_write(s
,buf
,num
));
915 int SSL_shutdown(SSL
*s
)
917 /* Note that this function behaves differently from what one might
918 * expect. Return values are 0 for no success (yet),
919 * 1 for success; but calling it once is usually not enough,
920 * even if blocking I/O is used (see ssl3_shutdown).
923 if (s
->handshake_func
== 0)
925 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
929 if ((s
!= NULL
) && !SSL_in_init(s
))
930 return(s
->method
->ssl_shutdown(s
));
935 int SSL_renegotiate(SSL
*s
)
937 if (s
->new_session
== 0)
941 return(s
->method
->ssl_renegotiate(s
));
944 int SSL_renegotiate_pending(SSL
*s
)
946 /* becomes true when negotiation is requested;
947 * false again once a handshake has finished */
948 return (s
->new_session
!= 0);
951 long SSL_ctrl(SSL
*s
,int cmd
,long larg
,void *parg
)
957 case SSL_CTRL_GET_READ_AHEAD
:
958 return(s
->read_ahead
);
959 case SSL_CTRL_SET_READ_AHEAD
:
964 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
965 s
->msg_callback_arg
= parg
;
968 case SSL_CTRL_OPTIONS
:
969 return(s
->options
|=larg
);
971 return(s
->mode
|=larg
);
972 case SSL_CTRL_GET_MAX_CERT_LIST
:
973 return(s
->max_cert_list
);
974 case SSL_CTRL_SET_MAX_CERT_LIST
:
976 s
->max_cert_list
=larg
;
978 case SSL_CTRL_SET_MTU
:
979 if (SSL_version(s
) == DTLS1_VERSION
)
986 return(s
->method
->ssl_ctrl(s
,cmd
,larg
,parg
));
990 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
)(void))
994 case SSL_CTRL_SET_MSG_CALLBACK
:
995 s
->msg_callback
= (void (*)(int write_p
, int version
, int content_type
, const void *buf
, size_t len
, SSL
*ssl
, void *arg
))(fp
);
999 return(s
->method
->ssl_callback_ctrl(s
,cmd
,fp
));
1003 struct lhash_st
*SSL_CTX_sessions(SSL_CTX
*ctx
)
1005 return ctx
->sessions
;
1008 long SSL_CTX_ctrl(SSL_CTX
*ctx
,int cmd
,long larg
,void *parg
)
1014 case SSL_CTRL_GET_READ_AHEAD
:
1015 return(ctx
->read_ahead
);
1016 case SSL_CTRL_SET_READ_AHEAD
:
1018 ctx
->read_ahead
=larg
;
1021 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1022 ctx
->msg_callback_arg
= parg
;
1025 case SSL_CTRL_GET_MAX_CERT_LIST
:
1026 return(ctx
->max_cert_list
);
1027 case SSL_CTRL_SET_MAX_CERT_LIST
:
1028 l
=ctx
->max_cert_list
;
1029 ctx
->max_cert_list
=larg
;
1032 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
1033 l
=ctx
->session_cache_size
;
1034 ctx
->session_cache_size
=larg
;
1036 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
1037 return(ctx
->session_cache_size
);
1038 case SSL_CTRL_SET_SESS_CACHE_MODE
:
1039 l
=ctx
->session_cache_mode
;
1040 ctx
->session_cache_mode
=larg
;
1042 case SSL_CTRL_GET_SESS_CACHE_MODE
:
1043 return(ctx
->session_cache_mode
);
1045 case SSL_CTRL_SESS_NUMBER
:
1046 return(ctx
->sessions
->num_items
);
1047 case SSL_CTRL_SESS_CONNECT
:
1048 return(ctx
->stats
.sess_connect
);
1049 case SSL_CTRL_SESS_CONNECT_GOOD
:
1050 return(ctx
->stats
.sess_connect_good
);
1051 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
1052 return(ctx
->stats
.sess_connect_renegotiate
);
1053 case SSL_CTRL_SESS_ACCEPT
:
1054 return(ctx
->stats
.sess_accept
);
1055 case SSL_CTRL_SESS_ACCEPT_GOOD
:
1056 return(ctx
->stats
.sess_accept_good
);
1057 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
1058 return(ctx
->stats
.sess_accept_renegotiate
);
1059 case SSL_CTRL_SESS_HIT
:
1060 return(ctx
->stats
.sess_hit
);
1061 case SSL_CTRL_SESS_CB_HIT
:
1062 return(ctx
->stats
.sess_cb_hit
);
1063 case SSL_CTRL_SESS_MISSES
:
1064 return(ctx
->stats
.sess_miss
);
1065 case SSL_CTRL_SESS_TIMEOUTS
:
1066 return(ctx
->stats
.sess_timeout
);
1067 case SSL_CTRL_SESS_CACHE_FULL
:
1068 return(ctx
->stats
.sess_cache_full
);
1069 case SSL_CTRL_OPTIONS
:
1070 return(ctx
->options
|=larg
);
1072 return(ctx
->mode
|=larg
);
1074 return(ctx
->method
->ssl_ctx_ctrl(ctx
,cmd
,larg
,parg
));
1078 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
)(void))
1082 case SSL_CTRL_SET_MSG_CALLBACK
:
1083 ctx
->msg_callback
= (void (*)(int write_p
, int version
, int content_type
, const void *buf
, size_t len
, SSL
*ssl
, void *arg
))(fp
);
1087 return(ctx
->method
->ssl_ctx_callback_ctrl(ctx
,cmd
,fp
));
1091 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
1099 return((l
> 0)?1:-1);
1102 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
* const *ap
,
1103 const SSL_CIPHER
* const *bp
)
1107 l
=(*ap
)->id
-(*bp
)->id
;
1111 return((l
> 0)?1:-1);
1114 /** return a STACK of the ciphers available for the SSL and in order of
1116 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
1120 if (s
->cipher_list
!= NULL
)
1122 return(s
->cipher_list
);
1124 else if ((s
->ctx
!= NULL
) &&
1125 (s
->ctx
->cipher_list
!= NULL
))
1127 return(s
->ctx
->cipher_list
);
1133 /** return a STACK of the ciphers available for the SSL and in order of
1135 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
1139 if (s
->cipher_list_by_id
!= NULL
)
1141 return(s
->cipher_list_by_id
);
1143 else if ((s
->ctx
!= NULL
) &&
1144 (s
->ctx
->cipher_list_by_id
!= NULL
))
1146 return(s
->ctx
->cipher_list_by_id
);
1152 /** The old interface to get the same thing as SSL_get_ciphers() */
1153 const char *SSL_get_cipher_list(const SSL
*s
,int n
)
1156 STACK_OF(SSL_CIPHER
) *sk
;
1158 if (s
== NULL
) return(NULL
);
1159 sk
=SSL_get_ciphers(s
);
1160 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
1162 c
=sk_SSL_CIPHER_value(sk
,n
);
1163 if (c
== NULL
) return(NULL
);
1167 /** specify the ciphers to be used by default by the SSL_CTX */
1168 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
1170 STACK_OF(SSL_CIPHER
) *sk
;
1172 sk
=ssl_create_cipher_list(ctx
->method
,&ctx
->cipher_list
,
1173 &ctx
->cipher_list_by_id
,str
);
1174 /* ssl_create_cipher_list may return an empty stack if it
1175 * was unable to find a cipher matching the given rule string
1176 * (for example if the rule string specifies a cipher which
1177 * has been disabled). This is not an error as far as
1178 * ssl_create_cipher_list is concerned, and hence
1179 * ctx->cipher_list and ctx->cipher_list_by_id has been
1183 else if (sk_SSL_CIPHER_num(sk
) == 0)
1185 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
1191 /** specify the ciphers to be used by the SSL */
1192 int SSL_set_cipher_list(SSL
*s
,const char *str
)
1194 STACK_OF(SSL_CIPHER
) *sk
;
1196 sk
=ssl_create_cipher_list(s
->ctx
->method
,&s
->cipher_list
,
1197 &s
->cipher_list_by_id
,str
);
1198 /* see comment in SSL_CTX_set_cipher_list */
1201 else if (sk_SSL_CIPHER_num(sk
) == 0)
1203 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
1209 /* works well for SSLv2, not so good for SSLv3 */
1210 char *SSL_get_shared_ciphers(const SSL
*s
,char *buf
,int len
)
1213 STACK_OF(SSL_CIPHER
) *sk
;
1217 if ((s
->session
== NULL
) || (s
->session
->ciphers
== NULL
) ||
1222 sk
=s
->session
->ciphers
;
1223 for (i
=0; i
<sk_SSL_CIPHER_num(sk
); i
++)
1227 c
=sk_SSL_CIPHER_value(sk
,i
);
1245 int ssl_cipher_list_to_bytes(SSL
*s
,STACK_OF(SSL_CIPHER
) *sk
,unsigned char *p
,
1246 int (*put_cb
)(const SSL_CIPHER
*, unsigned char *))
1251 #ifndef OPENSSL_NO_KRB5
1252 int nokrb5
= !kssl_tgt_is_available(s
->kssl_ctx
);
1253 #endif /* OPENSSL_NO_KRB5 */
1255 if (sk
== NULL
) return(0);
1258 for (i
=0; i
<sk_SSL_CIPHER_num(sk
); i
++)
1260 c
=sk_SSL_CIPHER_value(sk
,i
);
1261 #ifndef OPENSSL_NO_KRB5
1262 if ((c
->algorithms
& SSL_KRB5
) && nokrb5
)
1264 #endif /* OPENSSL_NO_KRB5 */
1266 j
= put_cb
? put_cb(c
,p
) : ssl_put_cipher_by_char(s
,c
,p
);
1272 STACK_OF(SSL_CIPHER
) *ssl_bytes_to_cipher_list(SSL
*s
,unsigned char *p
,int num
,
1273 STACK_OF(SSL_CIPHER
) **skp
)
1276 STACK_OF(SSL_CIPHER
) *sk
;
1279 n
=ssl_put_cipher_by_char(s
,NULL
,NULL
);
1282 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
1285 if ((skp
== NULL
) || (*skp
== NULL
))
1286 sk
=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1290 sk_SSL_CIPHER_zero(sk
);
1293 for (i
=0; i
<num
; i
+=n
)
1295 c
=ssl_get_cipher_by_char(s
,p
);
1299 if (!sk_SSL_CIPHER_push(sk
,c
))
1301 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,ERR_R_MALLOC_FAILURE
);
1311 if ((skp
== NULL
) || (*skp
== NULL
))
1312 sk_SSL_CIPHER_free(sk
);
1316 #ifndef OPENSSL_NO_TLSEXT
1317 /** return a servername extension value if provided in Client Hello, or NULL.
1318 * So far, only host_name types are defined (RFC 3546).
1321 const char *SSL_get_servername(const SSL
*s
, const int type
)
1323 if (type
!= TLSEXT_NAMETYPE_host_name
)
1326 return s
->session
&& !s
->tlsext_hostname
?
1327 s
->session
->tlsext_hostname
:
1331 int SSL_get_servername_type(const SSL
*s
)
1333 if (s
->session
&& (!s
->tlsext_hostname
? s
->session
->tlsext_hostname
: s
->tlsext_hostname
))
1334 return TLSEXT_NAMETYPE_host_name
;
1339 unsigned long SSL_SESSION_hash(const SSL_SESSION
*a
)
1344 ((unsigned int) a
->session_id
[0] )|
1345 ((unsigned int) a
->session_id
[1]<< 8L)|
1346 ((unsigned long)a
->session_id
[2]<<16L)|
1347 ((unsigned long)a
->session_id
[3]<<24L);
1351 /* NB: If this function (or indeed the hash function which uses a sort of
1352 * coarser function than this one) is changed, ensure
1353 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1354 * able to construct an SSL_SESSION that will collide with any existing session
1355 * with a matching session ID. */
1356 int SSL_SESSION_cmp(const SSL_SESSION
*a
,const SSL_SESSION
*b
)
1358 if (a
->ssl_version
!= b
->ssl_version
)
1360 if (a
->session_id_length
!= b
->session_id_length
)
1362 return(memcmp(a
->session_id
,b
->session_id
,a
->session_id_length
));
1365 /* These wrapper functions should remain rather than redeclaring
1366 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1367 * variable. The reason is that the functions aren't static, they're exposed via
1369 static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash
, SSL_SESSION
*)
1370 static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp
, SSL_SESSION
*)
1372 SSL_CTX
*SSL_CTX_new(SSL_METHOD
*meth
)
1378 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_NULL_SSL_METHOD_PASSED
);
1382 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1384 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
1387 ret
=(SSL_CTX
*)OPENSSL_malloc(sizeof(SSL_CTX
));
1391 memset(ret
,0,sizeof(SSL_CTX
));
1395 ret
->cert_store
=NULL
;
1396 ret
->session_cache_mode
=SSL_SESS_CACHE_SERVER
;
1397 ret
->session_cache_size
=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
1398 ret
->session_cache_head
=NULL
;
1399 ret
->session_cache_tail
=NULL
;
1401 /* We take the system default */
1402 ret
->session_timeout
=meth
->get_timeout();
1404 ret
->new_session_cb
=0;
1405 ret
->remove_session_cb
=0;
1406 ret
->get_session_cb
=0;
1407 ret
->generate_session_id
=0;
1409 memset((char *)&ret
->stats
,0,sizeof(ret
->stats
));
1412 ret
->quiet_shutdown
=0;
1414 /* ret->cipher=NULL;*/
1415 /* ret->s2->challenge=NULL;
1416 ret->master_key=NULL;
1418 ret->s2->conn_id=NULL; */
1420 ret
->info_callback
=NULL
;
1422 ret
->app_verify_callback
=0;
1423 ret
->app_verify_arg
=NULL
;
1425 ret
->max_cert_list
=SSL_MAX_CERT_LIST_DEFAULT
;
1427 ret
->msg_callback
=0;
1428 ret
->msg_callback_arg
=NULL
;
1429 ret
->verify_mode
=SSL_VERIFY_NONE
;
1431 ret
->verify_depth
=-1; /* Don't impose a limit (but x509_lu.c does) */
1433 ret
->sid_ctx_length
=0;
1434 ret
->default_verify_callback
=NULL
;
1435 if ((ret
->cert
=ssl_cert_new()) == NULL
)
1438 ret
->default_passwd_callback
=0;
1439 ret
->default_passwd_callback_userdata
=NULL
;
1440 ret
->client_cert_cb
=0;
1441 ret
->app_gen_cookie_cb
=0;
1442 ret
->app_verify_cookie_cb
=0;
1444 ret
->sessions
=lh_new(LHASH_HASH_FN(SSL_SESSION_hash
),
1445 LHASH_COMP_FN(SSL_SESSION_cmp
));
1446 if (ret
->sessions
== NULL
) goto err
;
1447 ret
->cert_store
=X509_STORE_new();
1448 if (ret
->cert_store
== NULL
) goto err
;
1450 ssl_create_cipher_list(ret
->method
,
1451 &ret
->cipher_list
,&ret
->cipher_list_by_id
,
1452 SSL_DEFAULT_CIPHER_LIST
);
1453 if (ret
->cipher_list
== NULL
1454 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0)
1456 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_LIBRARY_HAS_NO_CIPHERS
);
1460 ret
->param
= X509_VERIFY_PARAM_new();
1464 if ((ret
->rsa_md5
=EVP_get_digestbyname("ssl2-md5")) == NULL
)
1466 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES
);
1469 if ((ret
->md5
=EVP_get_digestbyname("ssl3-md5")) == NULL
)
1471 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
1474 if ((ret
->sha1
=EVP_get_digestbyname("ssl3-sha1")) == NULL
)
1476 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
1480 if ((ret
->client_CA
=sk_X509_NAME_new_null()) == NULL
)
1483 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
);
1485 ret
->extra_certs
=NULL
;
1486 ret
->comp_methods
=SSL_COMP_get_compression_methods();
1488 #ifndef OPENSSL_NO_TLSEXT
1489 ret
->tlsext_servername_callback
= 0;
1490 ret
->tlsext_servername_arg
= NULL
;
1491 /* Setup RFC4507 ticket keys */
1492 if ((RAND_pseudo_bytes(ret
->tlsext_tick_key_name
, 16) <= 0)
1493 || (RAND_bytes(ret
->tlsext_tick_hmac_key
, 16) <= 0)
1494 || (RAND_bytes(ret
->tlsext_tick_aes_key
, 16) <= 0))
1495 ret
->options
|= SSL_OP_NO_TICKET
;
1501 SSLerr(SSL_F_SSL_CTX_NEW
,ERR_R_MALLOC_FAILURE
);
1503 if (ret
!= NULL
) SSL_CTX_free(ret
);
1508 static void SSL_COMP_free(SSL_COMP
*comp
)
1509 { OPENSSL_free(comp
); }
1512 void SSL_CTX_free(SSL_CTX
*a
)
1516 if (a
== NULL
) return;
1518 i
=CRYPTO_add(&a
->references
,-1,CRYPTO_LOCK_SSL_CTX
);
1520 REF_PRINT("SSL_CTX",a
);
1526 fprintf(stderr
,"SSL_CTX_free, bad reference count\n");
1532 X509_VERIFY_PARAM_free(a
->param
);
1535 * Free internal session cache. However: the remove_cb() may reference
1536 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1537 * after the sessions were flushed.
1538 * As the ex_data handling routines might also touch the session cache,
1539 * the most secure solution seems to be: empty (flush) the cache, then
1540 * free ex_data, then finally free the cache.
1541 * (See ticket [openssl.org #212].)
1543 if (a
->sessions
!= NULL
)
1544 SSL_CTX_flush_sessions(a
,0);
1546 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
1548 if (a
->sessions
!= NULL
)
1549 lh_free(a
->sessions
);
1551 if (a
->cert_store
!= NULL
)
1552 X509_STORE_free(a
->cert_store
);
1553 if (a
->cipher_list
!= NULL
)
1554 sk_SSL_CIPHER_free(a
->cipher_list
);
1555 if (a
->cipher_list_by_id
!= NULL
)
1556 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
1557 if (a
->cert
!= NULL
)
1558 ssl_cert_free(a
->cert
);
1559 if (a
->client_CA
!= NULL
)
1560 sk_X509_NAME_pop_free(a
->client_CA
,X509_NAME_free
);
1561 if (a
->extra_certs
!= NULL
)
1562 sk_X509_pop_free(a
->extra_certs
,X509_free
);
1563 #if 0 /* This should never be done, since it removes a global database */
1564 if (a
->comp_methods
!= NULL
)
1565 sk_SSL_COMP_pop_free(a
->comp_methods
,SSL_COMP_free
);
1567 a
->comp_methods
= NULL
;
1572 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
1574 ctx
->default_passwd_callback
=cb
;
1577 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
,void *u
)
1579 ctx
->default_passwd_callback_userdata
=u
;
1582 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
, int (*cb
)(X509_STORE_CTX
*,void *), void *arg
)
1584 ctx
->app_verify_callback
=cb
;
1585 ctx
->app_verify_arg
=arg
;
1588 void SSL_CTX_set_verify(SSL_CTX
*ctx
,int mode
,int (*cb
)(int, X509_STORE_CTX
*))
1590 ctx
->verify_mode
=mode
;
1591 ctx
->default_verify_callback
=cb
;
1594 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
,int depth
)
1596 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
1599 void ssl_set_cert_masks(CERT
*c
, SSL_CIPHER
*cipher
)
1602 int rsa_enc
,rsa_tmp
,rsa_sign
,dh_tmp
,dh_rsa
,dh_dsa
,dsa_sign
;
1603 int rsa_enc_export
,dh_rsa_export
,dh_dsa_export
;
1604 int rsa_tmp_export
,dh_tmp_export
,kl
;
1605 unsigned long mask
,emask
;
1606 int have_ecc_cert
, ecdh_ok
, ecdsa_ok
, ecc_pkey_size
;
1607 #ifndef OPENSSL_NO_ECDH
1611 EVP_PKEY
*ecc_pkey
= NULL
;
1612 int signature_nid
= 0;
1614 if (c
== NULL
) return;
1616 kl
=SSL_C_EXPORT_PKEYLENGTH(cipher
);
1618 #ifndef OPENSSL_NO_RSA
1619 rsa_tmp
=(c
->rsa_tmp
!= NULL
|| c
->rsa_tmp_cb
!= NULL
);
1620 rsa_tmp_export
=(c
->rsa_tmp_cb
!= NULL
||
1621 (rsa_tmp
&& RSA_size(c
->rsa_tmp
)*8 <= kl
));
1623 rsa_tmp
=rsa_tmp_export
=0;
1625 #ifndef OPENSSL_NO_DH
1626 dh_tmp
=(c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
);
1627 dh_tmp_export
=(c
->dh_tmp_cb
!= NULL
||
1628 (dh_tmp
&& DH_size(c
->dh_tmp
)*8 <= kl
));
1630 dh_tmp
=dh_tmp_export
=0;
1633 #ifndef OPENSSL_NO_ECDH
1634 have_ecdh_tmp
=(c
->ecdh_tmp
!= NULL
|| c
->ecdh_tmp_cb
!= NULL
);
1636 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_ENC
]);
1637 rsa_enc
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1638 rsa_enc_export
=(rsa_enc
&& EVP_PKEY_size(cpk
->privatekey
)*8 <= kl
);
1639 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_SIGN
]);
1640 rsa_sign
=(cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1641 cpk
= &(c
->pkeys
[SSL_PKEY_DSA_SIGN
]);
1642 dsa_sign
=(cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1643 cpk
= &(c
->pkeys
[SSL_PKEY_DH_RSA
]);
1644 dh_rsa
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1645 dh_rsa_export
=(dh_rsa
&& EVP_PKEY_size(cpk
->privatekey
)*8 <= kl
);
1646 cpk
= &(c
->pkeys
[SSL_PKEY_DH_DSA
]);
1647 /* FIX THIS EAY EAY EAY */
1648 dh_dsa
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1649 dh_dsa_export
=(dh_dsa
&& EVP_PKEY_size(cpk
->privatekey
)*8 <= kl
);
1650 cpk
= &(c
->pkeys
[SSL_PKEY_ECC
]);
1651 have_ecc_cert
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1656 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1657 rsa_tmp
,rsa_tmp_export
,dh_tmp
,
1658 rsa_enc
,rsa_enc_export
,rsa_sign
,dsa_sign
,dh_rsa
,dh_dsa
);
1661 if (rsa_enc
|| (rsa_tmp
&& rsa_sign
))
1663 if (rsa_enc_export
|| (rsa_tmp_export
&& (rsa_sign
|| rsa_enc
)))
1667 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1668 if ( (dh_tmp
|| dh_rsa
|| dh_dsa
) &&
1669 (rsa_enc
|| rsa_sign
|| dsa_sign
))
1671 if ((dh_tmp_export
|| dh_rsa_export
|| dh_dsa_export
) &&
1672 (rsa_enc
|| rsa_sign
|| dsa_sign
))
1682 if (dh_rsa
) mask
|=SSL_kDHr
;
1683 if (dh_rsa_export
) emask
|=SSL_kDHr
;
1685 if (dh_dsa
) mask
|=SSL_kDHd
;
1686 if (dh_dsa_export
) emask
|=SSL_kDHd
;
1688 if (rsa_enc
|| rsa_sign
)
1703 #ifndef OPENSSL_NO_KRB5
1704 mask
|=SSL_kKRB5
|SSL_aKRB5
;
1705 emask
|=SSL_kKRB5
|SSL_aKRB5
;
1708 /* An ECC certificate may be usable for ECDH and/or
1709 * ECDSA cipher suites depending on the key usage extension.
1713 /* This call populates extension flags (ex_flags) */
1714 x
= (c
->pkeys
[SSL_PKEY_ECC
]).x509
;
1715 X509_check_purpose(x
, -1, 0);
1716 ecdh_ok
= (x
->ex_flags
& EXFLAG_KUSAGE
) ?
1717 (x
->ex_kusage
& X509v3_KU_KEY_AGREEMENT
) : 1;
1718 ecdsa_ok
= (x
->ex_flags
& EXFLAG_KUSAGE
) ?
1719 (x
->ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
) : 1;
1720 ecc_pkey
= X509_get_pubkey(x
);
1721 ecc_pkey_size
= (ecc_pkey
!= NULL
) ?
1722 EVP_PKEY_bits(ecc_pkey
) : 0;
1723 EVP_PKEY_free(ecc_pkey
);
1724 if ((x
->sig_alg
) && (x
->sig_alg
->algorithm
))
1725 signature_nid
= OBJ_obj2nid(x
->sig_alg
->algorithm
);
1726 #ifndef OPENSSL_NO_ECDH
1729 if ((signature_nid
== NID_md5WithRSAEncryption
) ||
1730 (signature_nid
== NID_md4WithRSAEncryption
) ||
1731 (signature_nid
== NID_md2WithRSAEncryption
))
1733 mask
|=SSL_kECDH
|SSL_aRSA
;
1734 if (ecc_pkey_size
<= 163)
1735 emask
|=SSL_kECDH
|SSL_aRSA
;
1737 if (signature_nid
== NID_ecdsa_with_SHA1
)
1739 mask
|=SSL_kECDH
|SSL_aECDSA
;
1740 if (ecc_pkey_size
<= 163)
1741 emask
|=SSL_kECDH
|SSL_aECDSA
;
1745 #ifndef OPENSSL_NO_ECDSA
1754 #ifndef OPENSSL_NO_ECDH
1762 c
->export_mask
=emask
;
1766 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
1767 #define ku_reject(x, usage) \
1768 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
1770 int check_srvr_ecc_cert_and_alg(X509
*x
, SSL_CIPHER
*cs
)
1772 unsigned long alg
= cs
->algorithms
;
1773 EVP_PKEY
*pkey
= NULL
;
1775 int signature_nid
= 0;
1777 if (SSL_C_IS_EXPORT(cs
))
1779 /* ECDH key length in export ciphers must be <= 163 bits */
1780 pkey
= X509_get_pubkey(x
);
1781 if (pkey
== NULL
) return 0;
1782 keysize
= EVP_PKEY_bits(pkey
);
1783 EVP_PKEY_free(pkey
);
1784 if (keysize
> 163) return 0;
1787 /* This call populates the ex_flags field correctly */
1788 X509_check_purpose(x
, -1, 0);
1789 if ((x
->sig_alg
) && (x
->sig_alg
->algorithm
))
1790 signature_nid
= OBJ_obj2nid(x
->sig_alg
->algorithm
);
1791 if (alg
& SSL_kECDH
)
1793 /* key usage, if present, must allow key agreement */
1794 if (ku_reject(x
, X509v3_KU_KEY_AGREEMENT
))
1798 if (alg
& SSL_aECDSA
)
1800 /* signature alg must be ECDSA */
1801 if (signature_nid
!= NID_ecdsa_with_SHA1
)
1808 /* signature alg must be RSA */
1809 if ((signature_nid
!= NID_md5WithRSAEncryption
) &&
1810 (signature_nid
!= NID_md4WithRSAEncryption
) &&
1811 (signature_nid
!= NID_md2WithRSAEncryption
))
1817 else if (alg
& SSL_aECDSA
)
1819 /* key usage, if present, must allow signing */
1820 if (ku_reject(x
, X509v3_KU_DIGITAL_SIGNATURE
))
1826 return 1; /* all checks are ok */
1829 /* THIS NEEDS CLEANING UP */
1830 X509
*ssl_get_server_send_cert(SSL
*s
)
1832 unsigned long alg
,mask
,kalg
;
1837 ssl_set_cert_masks(c
, s
->s3
->tmp
.new_cipher
);
1838 alg
=s
->s3
->tmp
.new_cipher
->algorithms
;
1839 is_export
=SSL_C_IS_EXPORT(s
->s3
->tmp
.new_cipher
);
1840 mask
=is_export
?c
->export_mask
:c
->mask
;
1841 kalg
=alg
&(SSL_MKEY_MASK
|SSL_AUTH_MASK
);
1843 if (kalg
& SSL_kECDH
)
1845 /* we don't need to look at SSL_kECDHE
1846 * since no certificate is needed for
1847 * anon ECDH and for authenticated
1848 * ECDHE, the check for the auth
1849 * algorithm will set i correctly
1850 * NOTE: For ECDH-RSA, we need an ECC
1851 * not an RSA cert but for ECDHE-RSA
1852 * we need an RSA cert. Placing the
1853 * checks for SSL_kECDH before RSA
1854 * checks ensures the correct cert is chosen.
1858 else if (kalg
& SSL_aECDSA
)
1862 else if (kalg
& SSL_kDHr
)
1864 else if (kalg
& SSL_kDHd
)
1866 else if (kalg
& SSL_aDSS
)
1867 i
=SSL_PKEY_DSA_SIGN
;
1868 else if (kalg
& SSL_aRSA
)
1870 if (c
->pkeys
[SSL_PKEY_RSA_ENC
].x509
== NULL
)
1871 i
=SSL_PKEY_RSA_SIGN
;
1875 else if (kalg
& SSL_aKRB5
)
1877 /* VRS something else here? */
1880 else /* if (kalg & SSL_aNULL) */
1882 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT
,ERR_R_INTERNAL_ERROR
);
1885 if (c
->pkeys
[i
].x509
== NULL
) return(NULL
);
1887 return(c
->pkeys
[i
].x509
);
1890 EVP_PKEY
*ssl_get_sign_pkey(SSL
*s
,SSL_CIPHER
*cipher
)
1895 alg
=cipher
->algorithms
;
1898 if ((alg
& SSL_aDSS
) &&
1899 (c
->pkeys
[SSL_PKEY_DSA_SIGN
].privatekey
!= NULL
))
1900 return(c
->pkeys
[SSL_PKEY_DSA_SIGN
].privatekey
);
1901 else if (alg
& SSL_aRSA
)
1903 if (c
->pkeys
[SSL_PKEY_RSA_SIGN
].privatekey
!= NULL
)
1904 return(c
->pkeys
[SSL_PKEY_RSA_SIGN
].privatekey
);
1905 else if (c
->pkeys
[SSL_PKEY_RSA_ENC
].privatekey
!= NULL
)
1906 return(c
->pkeys
[SSL_PKEY_RSA_ENC
].privatekey
);
1910 else if ((alg
& SSL_aECDSA
) &&
1911 (c
->pkeys
[SSL_PKEY_ECC
].privatekey
!= NULL
))
1912 return(c
->pkeys
[SSL_PKEY_ECC
].privatekey
);
1913 else /* if (alg & SSL_aNULL) */
1915 SSLerr(SSL_F_SSL_GET_SIGN_PKEY
,ERR_R_INTERNAL_ERROR
);
1920 void ssl_update_cache(SSL
*s
,int mode
)
1924 /* If the session_id_length is 0, we are not supposed to cache it,
1925 * and it would be rather hard to do anyway :-) */
1926 if (s
->session
->session_id_length
== 0) return;
1928 i
=s
->ctx
->session_cache_mode
;
1929 if ((i
& mode
) && (!s
->hit
)
1930 && ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
)
1931 || SSL_CTX_add_session(s
->ctx
,s
->session
))
1932 && (s
->ctx
->new_session_cb
!= NULL
))
1934 CRYPTO_add(&s
->session
->references
,1,CRYPTO_LOCK_SSL_SESSION
);
1935 if (!s
->ctx
->new_session_cb(s
,s
->session
))
1936 SSL_SESSION_free(s
->session
);
1939 /* auto flush every 255 connections */
1940 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) &&
1941 ((i
& mode
) == mode
))
1943 if ( (((mode
& SSL_SESS_CACHE_CLIENT
)
1944 ?s
->ctx
->stats
.sess_connect_good
1945 :s
->ctx
->stats
.sess_accept_good
) & 0xff) == 0xff)
1947 SSL_CTX_flush_sessions(s
->ctx
,(unsigned long)time(NULL
));
1952 SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
1957 int SSL_set_ssl_method(SSL
*s
,SSL_METHOD
*meth
)
1962 if (s
->method
!= meth
)
1964 if (s
->handshake_func
!= NULL
)
1965 conn
=(s
->handshake_func
== s
->method
->ssl_connect
);
1967 if (s
->method
->version
== meth
->version
)
1971 s
->method
->ssl_free(s
);
1973 ret
=s
->method
->ssl_new(s
);
1977 s
->handshake_func
=meth
->ssl_connect
;
1979 s
->handshake_func
=meth
->ssl_accept
;
1984 int SSL_get_error(const SSL
*s
,int i
)
1990 if (i
> 0) return(SSL_ERROR_NONE
);
1992 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1993 * etc, where we do encode the error */
1994 if ((l
=ERR_peek_error()) != 0)
1996 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
1997 return(SSL_ERROR_SYSCALL
);
1999 return(SSL_ERROR_SSL
);
2002 if ((i
< 0) && SSL_want_read(s
))
2004 bio
=SSL_get_rbio(s
);
2005 if (BIO_should_read(bio
))
2006 return(SSL_ERROR_WANT_READ
);
2007 else if (BIO_should_write(bio
))
2008 /* This one doesn't make too much sense ... We never try
2009 * to write to the rbio, and an application program where
2010 * rbio and wbio are separate couldn't even know what it
2012 * However if we ever set s->rwstate incorrectly
2013 * (so that we have SSL_want_read(s) instead of
2014 * SSL_want_write(s)) and rbio and wbio *are* the same,
2015 * this test works around that bug; so it might be safer
2017 return(SSL_ERROR_WANT_WRITE
);
2018 else if (BIO_should_io_special(bio
))
2020 reason
=BIO_get_retry_reason(bio
);
2021 if (reason
== BIO_RR_CONNECT
)
2022 return(SSL_ERROR_WANT_CONNECT
);
2023 else if (reason
== BIO_RR_ACCEPT
)
2024 return(SSL_ERROR_WANT_ACCEPT
);
2026 return(SSL_ERROR_SYSCALL
); /* unknown */
2030 if ((i
< 0) && SSL_want_write(s
))
2032 bio
=SSL_get_wbio(s
);
2033 if (BIO_should_write(bio
))
2034 return(SSL_ERROR_WANT_WRITE
);
2035 else if (BIO_should_read(bio
))
2036 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2037 return(SSL_ERROR_WANT_READ
);
2038 else if (BIO_should_io_special(bio
))
2040 reason
=BIO_get_retry_reason(bio
);
2041 if (reason
== BIO_RR_CONNECT
)
2042 return(SSL_ERROR_WANT_CONNECT
);
2043 else if (reason
== BIO_RR_ACCEPT
)
2044 return(SSL_ERROR_WANT_ACCEPT
);
2046 return(SSL_ERROR_SYSCALL
);
2049 if ((i
< 0) && SSL_want_x509_lookup(s
))
2051 return(SSL_ERROR_WANT_X509_LOOKUP
);
2056 if (s
->version
== SSL2_VERSION
)
2058 /* assume it is the socket being closed */
2059 return(SSL_ERROR_ZERO_RETURN
);
2063 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
2064 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
2065 return(SSL_ERROR_ZERO_RETURN
);
2068 return(SSL_ERROR_SYSCALL
);
2071 int SSL_do_handshake(SSL
*s
)
2075 if (s
->handshake_func
== NULL
)
2077 SSLerr(SSL_F_SSL_DO_HANDSHAKE
,SSL_R_CONNECTION_TYPE_NOT_SET
);
2081 s
->method
->ssl_renegotiate_check(s
);
2083 if (SSL_in_init(s
) || SSL_in_before(s
))
2085 ret
=s
->handshake_func(s
);
2090 /* For the next 2 functions, SSL_clear() sets shutdown and so
2091 * one of these calls will reset it */
2092 void SSL_set_accept_state(SSL
*s
)
2096 s
->state
=SSL_ST_ACCEPT
|SSL_ST_BEFORE
;
2097 s
->handshake_func
=s
->method
->ssl_accept
;
2098 /* clear the current cipher */
2099 ssl_clear_cipher_ctx(s
);
2102 void SSL_set_connect_state(SSL
*s
)
2106 s
->state
=SSL_ST_CONNECT
|SSL_ST_BEFORE
;
2107 s
->handshake_func
=s
->method
->ssl_connect
;
2108 /* clear the current cipher */
2109 ssl_clear_cipher_ctx(s
);
2112 int ssl_undefined_function(SSL
*s
)
2114 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2118 int ssl_undefined_void_function(void)
2120 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2124 int ssl_undefined_const_function(const SSL
*s
)
2126 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2130 SSL_METHOD
*ssl_bad_method(int ver
)
2132 SSLerr(SSL_F_SSL_BAD_METHOD
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2136 const char *SSL_get_version(const SSL
*s
)
2138 if (s
->version
== TLS1_VERSION
)
2140 else if (s
->version
== SSL3_VERSION
)
2142 else if (s
->version
== SSL2_VERSION
)
2148 SSL
*SSL_dup(SSL
*s
)
2150 STACK_OF(X509_NAME
) *sk
;
2155 if ((ret
=SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
2158 ret
->version
= s
->version
;
2159 ret
->type
= s
->type
;
2160 ret
->method
= s
->method
;
2162 if (s
->session
!= NULL
)
2164 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2165 SSL_copy_session_id(ret
,s
);
2169 /* No session has been established yet, so we have to expect
2170 * that s->cert or ret->cert will be changed later --
2171 * they should not both point to the same object,
2172 * and thus we can't use SSL_copy_session_id. */
2174 ret
->method
->ssl_free(ret
);
2175 ret
->method
= s
->method
;
2176 ret
->method
->ssl_new(ret
);
2178 if (s
->cert
!= NULL
)
2180 if (ret
->cert
!= NULL
)
2182 ssl_cert_free(ret
->cert
);
2184 ret
->cert
= ssl_cert_dup(s
->cert
);
2185 if (ret
->cert
== NULL
)
2189 SSL_set_session_id_context(ret
,
2190 s
->sid_ctx
, s
->sid_ctx_length
);
2193 ret
->options
=s
->options
;
2195 SSL_set_max_cert_list(ret
,SSL_get_max_cert_list(s
));
2196 SSL_set_read_ahead(ret
,SSL_get_read_ahead(s
));
2197 ret
->msg_callback
= s
->msg_callback
;
2198 ret
->msg_callback_arg
= s
->msg_callback_arg
;
2199 SSL_set_verify(ret
,SSL_get_verify_mode(s
),
2200 SSL_get_verify_callback(s
));
2201 SSL_set_verify_depth(ret
,SSL_get_verify_depth(s
));
2202 ret
->generate_session_id
= s
->generate_session_id
;
2204 SSL_set_info_callback(ret
,SSL_get_info_callback(s
));
2206 ret
->debug
=s
->debug
;
2208 /* copy app data, a little dangerous perhaps */
2209 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
2212 /* setup rbio, and wbio */
2213 if (s
->rbio
!= NULL
)
2215 if (!BIO_dup_state(s
->rbio
,(char *)&ret
->rbio
))
2218 if (s
->wbio
!= NULL
)
2220 if (s
->wbio
!= s
->rbio
)
2222 if (!BIO_dup_state(s
->wbio
,(char *)&ret
->wbio
))
2226 ret
->wbio
=ret
->rbio
;
2228 ret
->rwstate
= s
->rwstate
;
2229 ret
->in_handshake
= s
->in_handshake
;
2230 ret
->handshake_func
= s
->handshake_func
;
2231 ret
->server
= s
->server
;
2232 ret
->new_session
= s
->new_session
;
2233 ret
->quiet_shutdown
= s
->quiet_shutdown
;
2234 ret
->shutdown
=s
->shutdown
;
2235 ret
->state
=s
->state
; /* SSL_dup does not really work at any state, though */
2236 ret
->rstate
=s
->rstate
;
2237 ret
->init_num
= 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2240 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
2242 /* dup the cipher_list and cipher_list_by_id stacks */
2243 if (s
->cipher_list
!= NULL
)
2245 if ((ret
->cipher_list
=sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
2248 if (s
->cipher_list_by_id
!= NULL
)
2249 if ((ret
->cipher_list_by_id
=sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
2253 /* Dup the client_CA list */
2254 if (s
->client_CA
!= NULL
)
2256 if ((sk
=sk_X509_NAME_dup(s
->client_CA
)) == NULL
) goto err
;
2258 for (i
=0; i
<sk_X509_NAME_num(sk
); i
++)
2260 xn
=sk_X509_NAME_value(sk
,i
);
2261 if (sk_X509_NAME_set(sk
,i
,X509_NAME_dup(xn
)) == NULL
)
2272 if (ret
!= NULL
) SSL_free(ret
);
2278 void ssl_clear_cipher_ctx(SSL
*s
)
2280 if (s
->enc_read_ctx
!= NULL
)
2282 EVP_CIPHER_CTX_cleanup(s
->enc_read_ctx
);
2283 OPENSSL_free(s
->enc_read_ctx
);
2284 s
->enc_read_ctx
=NULL
;
2286 if (s
->enc_write_ctx
!= NULL
)
2288 EVP_CIPHER_CTX_cleanup(s
->enc_write_ctx
);
2289 OPENSSL_free(s
->enc_write_ctx
);
2290 s
->enc_write_ctx
=NULL
;
2292 #ifndef OPENSSL_NO_COMP
2293 if (s
->expand
!= NULL
)
2295 COMP_CTX_free(s
->expand
);
2298 if (s
->compress
!= NULL
)
2300 COMP_CTX_free(s
->compress
);
2306 /* Fix this function so that it takes an optional type parameter */
2307 X509
*SSL_get_certificate(const SSL
*s
)
2309 if (s
->cert
!= NULL
)
2310 return(s
->cert
->key
->x509
);
2315 /* Fix this function so that it takes an optional type parameter */
2316 EVP_PKEY
*SSL_get_privatekey(SSL
*s
)
2318 if (s
->cert
!= NULL
)
2319 return(s
->cert
->key
->privatekey
);
2324 SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
2326 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
2327 return(s
->session
->cipher
);
2330 #ifdef OPENSSL_NO_COMP
2331 const void *SSL_get_current_compression(SSL
*s
)
2335 const void *SSL_get_current_expansion(SSL
*s
)
2341 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
2343 if (s
->compress
!= NULL
)
2344 return(s
->compress
->meth
);
2348 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
2350 if (s
->expand
!= NULL
)
2351 return(s
->expand
->meth
);
2356 int ssl_init_wbio_buffer(SSL
*s
,int push
)
2360 if (s
->bbio
== NULL
)
2362 bbio
=BIO_new(BIO_f_buffer());
2363 if (bbio
== NULL
) return(0);
2369 if (s
->bbio
== s
->wbio
)
2370 s
->wbio
=BIO_pop(s
->wbio
);
2372 (void)BIO_reset(bbio
);
2373 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2374 if (!BIO_set_read_buffer_size(bbio
,1))
2376 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
,ERR_R_BUF_LIB
);
2381 if (s
->wbio
!= bbio
)
2382 s
->wbio
=BIO_push(bbio
,s
->wbio
);
2386 if (s
->wbio
== bbio
)
2387 s
->wbio
=BIO_pop(bbio
);
2392 void ssl_free_wbio_buffer(SSL
*s
)
2394 if (s
->bbio
== NULL
) return;
2396 if (s
->bbio
== s
->wbio
)
2398 /* remove buffering */
2399 s
->wbio
=BIO_pop(s
->wbio
);
2400 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2401 assert(s
->wbio
!= NULL
);
2408 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
,int mode
)
2410 ctx
->quiet_shutdown
=mode
;
2413 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
2415 return(ctx
->quiet_shutdown
);
2418 void SSL_set_quiet_shutdown(SSL
*s
,int mode
)
2420 s
->quiet_shutdown
=mode
;
2423 int SSL_get_quiet_shutdown(const SSL
*s
)
2425 return(s
->quiet_shutdown
);
2428 void SSL_set_shutdown(SSL
*s
,int mode
)
2433 int SSL_get_shutdown(const SSL
*s
)
2435 return(s
->shutdown
);
2438 int SSL_version(const SSL
*s
)
2443 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
2448 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
* ctx
)
2450 if (ssl
->ctx
== ctx
)
2452 #ifndef OPENSSL_NO_TLSEXT
2454 ctx
= ssl
->initial_ctx
;
2456 if (ssl
->cert
!= NULL
)
2457 ssl_cert_free(ssl
->cert
);
2458 ssl
->cert
= ssl_cert_dup(ctx
->cert
);
2459 CRYPTO_add(&ctx
->references
,1,CRYPTO_LOCK_SSL_CTX
);
2460 if (ssl
->ctx
!= NULL
)
2461 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
2466 #ifndef OPENSSL_NO_STDIO
2467 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
2469 return(X509_STORE_set_default_paths(ctx
->cert_store
));
2472 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
2475 return(X509_STORE_load_locations(ctx
->cert_store
,CAfile
,CApath
));
2479 void SSL_set_info_callback(SSL
*ssl
,
2480 void (*cb
)(const SSL
*ssl
,int type
,int val
))
2482 ssl
->info_callback
=cb
;
2485 /* One compiler (Diab DCC) doesn't like argument names in returned
2486 function pointer. */
2487 void (*SSL_get_info_callback(const SSL
*ssl
))(const SSL
* /*ssl*/,int /*type*/,int /*val*/)
2489 return ssl
->info_callback
;
2492 int SSL_state(const SSL
*ssl
)
2497 void SSL_set_verify_result(SSL
*ssl
,long arg
)
2499 ssl
->verify_result
=arg
;
2502 long SSL_get_verify_result(const SSL
*ssl
)
2504 return(ssl
->verify_result
);
2507 int SSL_get_ex_new_index(long argl
,void *argp
,CRYPTO_EX_new
*new_func
,
2508 CRYPTO_EX_dup
*dup_func
,CRYPTO_EX_free
*free_func
)
2510 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL
, argl
, argp
,
2511 new_func
, dup_func
, free_func
);
2514 int SSL_set_ex_data(SSL
*s
,int idx
,void *arg
)
2516 return(CRYPTO_set_ex_data(&s
->ex_data
,idx
,arg
));
2519 void *SSL_get_ex_data(const SSL
*s
,int idx
)
2521 return(CRYPTO_get_ex_data(&s
->ex_data
,idx
));
2524 int SSL_CTX_get_ex_new_index(long argl
,void *argp
,CRYPTO_EX_new
*new_func
,
2525 CRYPTO_EX_dup
*dup_func
,CRYPTO_EX_free
*free_func
)
2527 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX
, argl
, argp
,
2528 new_func
, dup_func
, free_func
);
2531 int SSL_CTX_set_ex_data(SSL_CTX
*s
,int idx
,void *arg
)
2533 return(CRYPTO_set_ex_data(&s
->ex_data
,idx
,arg
));
2536 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
,int idx
)
2538 return(CRYPTO_get_ex_data(&s
->ex_data
,idx
));
2546 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
2548 return(ctx
->cert_store
);
2551 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
,X509_STORE
*store
)
2553 if (ctx
->cert_store
!= NULL
)
2554 X509_STORE_free(ctx
->cert_store
);
2555 ctx
->cert_store
=store
;
2558 int SSL_want(const SSL
*s
)
2564 * \brief Set the callback for generating temporary RSA keys.
2565 * \param ctx the SSL context.
2566 * \param cb the callback
2569 #ifndef OPENSSL_NO_RSA
2570 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX
*ctx
,RSA
*(*cb
)(SSL
*ssl
,
2574 SSL_CTX_callback_ctrl(ctx
,SSL_CTRL_SET_TMP_RSA_CB
,(void (*)(void))cb
);
2577 void SSL_set_tmp_rsa_callback(SSL
*ssl
,RSA
*(*cb
)(SSL
*ssl
,
2581 SSL_callback_ctrl(ssl
,SSL_CTRL_SET_TMP_RSA_CB
,(void (*)(void))cb
);
2587 * \brief The RSA temporary key callback function.
2588 * \param ssl the SSL session.
2589 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2590 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2591 * of the required key in bits.
2592 * \return the temporary RSA key.
2593 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2596 RSA
*cb(SSL
*ssl
,int is_export
,int keylength
)
2601 * \brief Set the callback for generating temporary DH keys.
2602 * \param ctx the SSL context.
2603 * \param dh the callback
2606 #ifndef OPENSSL_NO_DH
2607 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,DH
*(*dh
)(SSL
*ssl
,int is_export
,
2610 SSL_CTX_callback_ctrl(ctx
,SSL_CTRL_SET_TMP_DH_CB
,(void (*)(void))dh
);
2613 void SSL_set_tmp_dh_callback(SSL
*ssl
,DH
*(*dh
)(SSL
*ssl
,int is_export
,
2616 SSL_callback_ctrl(ssl
,SSL_CTRL_SET_TMP_DH_CB
,(void (*)(void))dh
);
2620 #ifndef OPENSSL_NO_ECDH
2621 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX
*ctx
,EC_KEY
*(*ecdh
)(SSL
*ssl
,int is_export
,
2624 SSL_CTX_callback_ctrl(ctx
,SSL_CTRL_SET_TMP_ECDH_CB
,(void (*)(void))ecdh
);
2627 void SSL_set_tmp_ecdh_callback(SSL
*ssl
,EC_KEY
*(*ecdh
)(SSL
*ssl
,int is_export
,
2630 SSL_callback_ctrl(ssl
,SSL_CTRL_SET_TMP_ECDH_CB
,(void (*)(void))ecdh
);
2635 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
))
2637 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
2639 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
))
2641 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
2646 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
2647 #include "../crypto/bio/bss_file.c"
2650 IMPLEMENT_STACK_OF(SSL_CIPHER
)
2651 IMPLEMENT_STACK_OF(SSL_COMP
)