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 #include <openssl/ocsp.h>
130 #ifndef OPENSSL_NO_DH
131 #include <openssl/dh.h>
133 #ifndef OPENSSL_NO_ENGINE
134 #include <openssl/engine.h>
137 const char *SSL_version_str
=OPENSSL_VERSION_TEXT
;
139 SSL3_ENC_METHOD ssl3_undef_enc_method
={
140 /* evil casts, but these functions are only called if there's a library bug */
141 (int (*)(SSL
*,int))ssl_undefined_function
,
142 (int (*)(SSL
*, unsigned char *, int))ssl_undefined_function
,
143 ssl_undefined_function
,
144 (int (*)(SSL
*, unsigned char *, unsigned char *, int))ssl_undefined_function
,
145 (int (*)(SSL
*, int))ssl_undefined_function
,
146 (int (*)(SSL
*, EVP_MD_CTX
*, EVP_MD_CTX
*, const char*, int, unsigned char *))ssl_undefined_function
,
147 0, /* finish_mac_length */
148 (int (*)(SSL
*, EVP_MD_CTX
*, unsigned char *))ssl_undefined_function
,
149 NULL
, /* client_finished_label */
150 0, /* client_finished_label_len */
151 NULL
, /* server_finished_label */
152 0, /* server_finished_label_len */
153 (int (*)(int))ssl_undefined_function
156 int SSL_clear(SSL
*s
)
159 if (s
->method
== NULL
)
161 SSLerr(SSL_F_SSL_CLEAR
,SSL_R_NO_METHOD_SPECIFIED
);
165 if (ssl_clear_bad_session(s
))
167 SSL_SESSION_free(s
->session
);
175 #if 0 /* Disabled since version 1.10 of this file (early return not
176 * needed because SSL_clear is not called when doing renegotiation) */
177 /* This is set if we are doing dynamic renegotiation so keep
178 * the old cipher. It is sort of a SSL_clear_lite :-) */
179 if (s
->new_session
) return(1);
183 SSLerr(SSL_F_SSL_CLEAR
,ERR_R_INTERNAL_ERROR
);
190 s
->state
=SSL_ST_BEFORE
|((s
->server
)?SSL_ST_ACCEPT
:SSL_ST_CONNECT
);
192 s
->version
=s
->method
->version
;
193 s
->client_version
=s
->version
;
194 s
->rwstate
=SSL_NOTHING
;
195 s
->rstate
=SSL_ST_READ_HEADER
;
197 s
->read_ahead
=s
->ctx
->read_ahead
;
200 if (s
->init_buf
!= NULL
)
202 BUF_MEM_free(s
->init_buf
);
206 ssl_clear_cipher_ctx(s
);
211 /* Check to see if we were changed into a different method, if
212 * so, revert back if we are not doing session-id reuse. */
213 if (!s
->in_handshake
&& (s
->session
== NULL
) && (s
->method
!= s
->ctx
->method
))
215 s
->method
->ssl_free(s
);
216 s
->method
=s
->ctx
->method
;
217 if (!s
->method
->ssl_new(s
))
222 s
->method
->ssl_clear(s
);
226 /** Used to change an SSL_CTXs default SSL method type */
227 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
,SSL_METHOD
*meth
)
229 STACK_OF(SSL_CIPHER
) *sk
;
233 sk
=ssl_create_cipher_list(ctx
->method
,&(ctx
->cipher_list
),
234 &(ctx
->cipher_list_by_id
),SSL_DEFAULT_CIPHER_LIST
);
235 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0))
237 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
243 SSL
*SSL_new(SSL_CTX
*ctx
)
249 SSLerr(SSL_F_SSL_NEW
,SSL_R_NULL_SSL_CTX
);
252 if (ctx
->method
== NULL
)
254 SSLerr(SSL_F_SSL_NEW
,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
258 s
=(SSL
*)OPENSSL_malloc(sizeof(SSL
));
259 if (s
== NULL
) goto err
;
260 memset(s
,0,sizeof(SSL
));
262 #ifndef OPENSSL_NO_KRB5
263 s
->kssl_ctx
= kssl_ctx_new();
264 #endif /* OPENSSL_NO_KRB5 */
266 s
->options
=ctx
->options
;
268 s
->max_cert_list
=ctx
->max_cert_list
;
270 if (ctx
->cert
!= NULL
)
272 /* Earlier library versions used to copy the pointer to
273 * the CERT, not its contents; only when setting new
274 * parameters for the per-SSL copy, ssl_cert_new would be
275 * called (and the direct reference to the per-SSL_CTX
276 * settings would be lost, but those still were indirectly
277 * accessed for various purposes, and for that reason they
278 * used to be known as s->ctx->default_cert).
279 * Now we don't look at the SSL_CTX's CERT after having
280 * duplicated it once. */
282 s
->cert
= ssl_cert_dup(ctx
->cert
);
287 s
->cert
=NULL
; /* Cannot really happen (see SSL_CTX_new) */
289 s
->read_ahead
=ctx
->read_ahead
;
290 s
->msg_callback
=ctx
->msg_callback
;
291 s
->msg_callback_arg
=ctx
->msg_callback_arg
;
292 s
->verify_mode
=ctx
->verify_mode
;
294 s
->verify_depth
=ctx
->verify_depth
;
296 s
->sid_ctx_length
=ctx
->sid_ctx_length
;
297 OPENSSL_assert(s
->sid_ctx_length
<= sizeof s
->sid_ctx
);
298 memcpy(&s
->sid_ctx
,&ctx
->sid_ctx
,sizeof(s
->sid_ctx
));
299 s
->verify_callback
=ctx
->default_verify_callback
;
300 s
->generate_session_id
=ctx
->generate_session_id
;
302 s
->param
= X509_VERIFY_PARAM_new();
305 X509_VERIFY_PARAM_inherit(s
->param
, ctx
->param
);
307 s
->purpose
= ctx
->purpose
;
308 s
->trust
= ctx
->trust
;
310 s
->quiet_shutdown
=ctx
->quiet_shutdown
;
312 CRYPTO_add(&ctx
->references
,1,CRYPTO_LOCK_SSL_CTX
);
314 #ifndef OPENSSL_NO_TLSEXT
315 s
->tlsext_debug_cb
= 0;
316 s
->tlsext_debug_arg
= NULL
;
317 s
->tlsext_ticket_expected
= 0;
318 s
->tlsext_status_type
= -1;
319 s
->tlsext_status_expected
= 0;
320 s
->tlsext_ocsp_ids
= NULL
;
321 s
->tlsext_ocsp_exts
= NULL
;
322 s
->tlsext_ocsp_resp
= NULL
;
323 s
->tlsext_ocsp_resplen
= -1;
324 CRYPTO_add(&ctx
->references
,1,CRYPTO_LOCK_SSL_CTX
);
327 s
->verify_result
=X509_V_OK
;
329 s
->method
=ctx
->method
;
331 if (!s
->method
->ssl_new(s
))
335 s
->server
=(ctx
->method
->ssl_accept
== ssl_undefined_function
)?0:1;
339 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
346 ssl_cert_free(s
->cert
);
348 SSL_CTX_free(s
->ctx
); /* decrement reference count */
351 SSLerr(SSL_F_SSL_NEW
,ERR_R_MALLOC_FAILURE
);
355 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
,const unsigned char *sid_ctx
,
356 unsigned int sid_ctx_len
)
358 if(sid_ctx_len
> sizeof ctx
->sid_ctx
)
360 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
363 ctx
->sid_ctx_length
=sid_ctx_len
;
364 memcpy(ctx
->sid_ctx
,sid_ctx
,sid_ctx_len
);
369 int SSL_set_session_id_context(SSL
*ssl
,const unsigned char *sid_ctx
,
370 unsigned int sid_ctx_len
)
372 if(sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
)
374 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
377 ssl
->sid_ctx_length
=sid_ctx_len
;
378 memcpy(ssl
->sid_ctx
,sid_ctx
,sid_ctx_len
);
383 int SSL_CTX_set_generate_session_id(SSL_CTX
*ctx
, GEN_SESSION_CB cb
)
385 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX
);
386 ctx
->generate_session_id
= cb
;
387 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX
);
391 int SSL_set_generate_session_id(SSL
*ssl
, GEN_SESSION_CB cb
)
393 CRYPTO_w_lock(CRYPTO_LOCK_SSL
);
394 ssl
->generate_session_id
= cb
;
395 CRYPTO_w_unlock(CRYPTO_LOCK_SSL
);
399 int SSL_has_matching_session_id(const SSL
*ssl
, const unsigned char *id
,
402 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
403 * we can "construct" a session to give us the desired check - ie. to
404 * find if there's a session in the hash table that would conflict with
405 * any new session built out of this id/id_len and the ssl_version in
406 * use by this SSL. */
409 if(id_len
> sizeof r
.session_id
)
412 r
.ssl_version
= ssl
->version
;
413 r
.session_id_length
= id_len
;
414 memcpy(r
.session_id
, id
, id_len
);
415 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
416 * callback is calling us to check the uniqueness of a shorter ID, it
417 * must be compared as a padded-out ID because that is what it will be
418 * converted to when the callback has finished choosing it. */
419 if((r
.ssl_version
== SSL2_VERSION
) &&
420 (id_len
< SSL2_SSL_SESSION_ID_LENGTH
))
422 memset(r
.session_id
+ id_len
, 0,
423 SSL2_SSL_SESSION_ID_LENGTH
- id_len
);
424 r
.session_id_length
= SSL2_SSL_SESSION_ID_LENGTH
;
427 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX
);
428 p
= (SSL_SESSION
*)lh_retrieve(ssl
->ctx
->sessions
, &r
);
429 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX
);
433 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
435 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
438 int SSL_set_purpose(SSL
*s
, int purpose
)
440 return X509_VERIFY_PARAM_set_purpose(s
->param
, purpose
);
443 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
445 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
448 int SSL_set_trust(SSL
*s
, int trust
)
450 return X509_VERIFY_PARAM_set_trust(s
->param
, trust
);
453 void SSL_free(SSL
*s
)
460 i
=CRYPTO_add(&s
->references
,-1,CRYPTO_LOCK_SSL
);
468 fprintf(stderr
,"SSL_free, bad reference count\n");
474 X509_VERIFY_PARAM_free(s
->param
);
476 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL
, s
, &s
->ex_data
);
480 /* If the buffering BIO is in place, pop it off */
481 if (s
->bbio
== s
->wbio
)
483 s
->wbio
=BIO_pop(s
->wbio
);
489 BIO_free_all(s
->rbio
);
490 if ((s
->wbio
!= NULL
) && (s
->wbio
!= s
->rbio
))
491 BIO_free_all(s
->wbio
);
493 if (s
->init_buf
!= NULL
) BUF_MEM_free(s
->init_buf
);
495 /* add extra stuff */
496 if (s
->cipher_list
!= NULL
) sk_SSL_CIPHER_free(s
->cipher_list
);
497 if (s
->cipher_list_by_id
!= NULL
) sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
499 /* Make the next call work :-) */
500 if (s
->session
!= NULL
)
502 ssl_clear_bad_session(s
);
503 SSL_SESSION_free(s
->session
);
506 ssl_clear_cipher_ctx(s
);
508 if (s
->cert
!= NULL
) ssl_cert_free(s
->cert
);
509 /* Free up if allocated */
511 if (s
->ctx
) SSL_CTX_free(s
->ctx
);
512 #ifndef OPENSSL_NO_TLSEXT
513 if (s
->initial_ctx
) SSL_CTX_free(s
->initial_ctx
);
514 if (s
->tlsext_ocsp_exts
)
515 sk_X509_EXTENSION_pop_free(s
->tlsext_ocsp_exts
,
516 X509_EXTENSION_free
);
517 if (s
->tlsext_ocsp_ids
)
518 sk_OCSP_RESPID_pop_free(s
->tlsext_ocsp_ids
, OCSP_RESPID_free
);
519 if (s
->tlsext_ocsp_resp
)
520 OPENSSL_free(s
->tlsext_ocsp_resp
);
522 if (s
->client_CA
!= NULL
)
523 sk_X509_NAME_pop_free(s
->client_CA
,X509_NAME_free
);
525 if (s
->method
!= NULL
) s
->method
->ssl_free(s
);
527 #ifndef OPENSSL_NO_KRB5
528 if (s
->kssl_ctx
!= NULL
)
529 kssl_ctx_free(s
->kssl_ctx
);
530 #endif /* OPENSSL_NO_KRB5 */
535 void SSL_set_bio(SSL
*s
,BIO
*rbio
,BIO
*wbio
)
537 /* If the output buffering BIO is still in place, remove it
541 if (s
->wbio
== s
->bbio
)
543 s
->wbio
=s
->wbio
->next_bio
;
544 s
->bbio
->next_bio
=NULL
;
547 if ((s
->rbio
!= NULL
) && (s
->rbio
!= rbio
))
548 BIO_free_all(s
->rbio
);
549 if ((s
->wbio
!= NULL
) && (s
->wbio
!= wbio
) && (s
->rbio
!= s
->wbio
))
550 BIO_free_all(s
->wbio
);
555 BIO
*SSL_get_rbio(const SSL
*s
)
558 BIO
*SSL_get_wbio(const SSL
*s
)
561 int SSL_get_fd(const SSL
*s
)
563 return(SSL_get_rfd(s
));
566 int SSL_get_rfd(const SSL
*s
)
572 r
=BIO_find_type(b
,BIO_TYPE_DESCRIPTOR
);
578 int SSL_get_wfd(const SSL
*s
)
584 r
=BIO_find_type(b
,BIO_TYPE_DESCRIPTOR
);
590 #ifndef OPENSSL_NO_SOCK
591 int SSL_set_fd(SSL
*s
,int fd
)
596 bio
=BIO_new(BIO_s_socket());
600 SSLerr(SSL_F_SSL_SET_FD
,ERR_R_BUF_LIB
);
603 BIO_set_fd(bio
,fd
,BIO_NOCLOSE
);
604 SSL_set_bio(s
,bio
,bio
);
610 int SSL_set_wfd(SSL
*s
,int fd
)
615 if ((s
->rbio
== NULL
) || (BIO_method_type(s
->rbio
) != BIO_TYPE_SOCKET
)
616 || ((int)BIO_get_fd(s
->rbio
,NULL
) != fd
))
618 bio
=BIO_new(BIO_s_socket());
621 { SSLerr(SSL_F_SSL_SET_WFD
,ERR_R_BUF_LIB
); goto err
; }
622 BIO_set_fd(bio
,fd
,BIO_NOCLOSE
);
623 SSL_set_bio(s
,SSL_get_rbio(s
),bio
);
626 SSL_set_bio(s
,SSL_get_rbio(s
),SSL_get_rbio(s
));
632 int SSL_set_rfd(SSL
*s
,int fd
)
637 if ((s
->wbio
== NULL
) || (BIO_method_type(s
->wbio
) != BIO_TYPE_SOCKET
)
638 || ((int)BIO_get_fd(s
->wbio
,NULL
) != fd
))
640 bio
=BIO_new(BIO_s_socket());
644 SSLerr(SSL_F_SSL_SET_RFD
,ERR_R_BUF_LIB
);
647 BIO_set_fd(bio
,fd
,BIO_NOCLOSE
);
648 SSL_set_bio(s
,bio
,SSL_get_wbio(s
));
651 SSL_set_bio(s
,SSL_get_wbio(s
),SSL_get_wbio(s
));
659 /* return length of latest Finished message we sent, copy to 'buf' */
660 size_t SSL_get_finished(const SSL
*s
, void *buf
, size_t count
)
666 ret
= s
->s3
->tmp
.finish_md_len
;
669 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
674 /* return length of latest Finished message we expected, copy to 'buf' */
675 size_t SSL_get_peer_finished(const SSL
*s
, void *buf
, size_t count
)
681 ret
= s
->s3
->tmp
.peer_finish_md_len
;
684 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
690 int SSL_get_verify_mode(const SSL
*s
)
692 return(s
->verify_mode
);
695 int SSL_get_verify_depth(const SSL
*s
)
697 return X509_VERIFY_PARAM_get_depth(s
->param
);
700 int (*SSL_get_verify_callback(const SSL
*s
))(int,X509_STORE_CTX
*)
702 return(s
->verify_callback
);
705 int SSL_CTX_get_verify_mode(const SSL_CTX
*ctx
)
707 return(ctx
->verify_mode
);
710 int SSL_CTX_get_verify_depth(const SSL_CTX
*ctx
)
712 return X509_VERIFY_PARAM_get_depth(ctx
->param
);
715 int (*SSL_CTX_get_verify_callback(const SSL_CTX
*ctx
))(int,X509_STORE_CTX
*)
717 return(ctx
->default_verify_callback
);
720 void SSL_set_verify(SSL
*s
,int mode
,
721 int (*callback
)(int ok
,X509_STORE_CTX
*ctx
))
724 if (callback
!= NULL
)
725 s
->verify_callback
=callback
;
728 void SSL_set_verify_depth(SSL
*s
,int depth
)
730 X509_VERIFY_PARAM_set_depth(s
->param
, depth
);
733 void SSL_set_read_ahead(SSL
*s
,int yes
)
738 int SSL_get_read_ahead(const SSL
*s
)
740 return(s
->read_ahead
);
743 int SSL_pending(const SSL
*s
)
745 /* SSL_pending cannot work properly if read-ahead is enabled
746 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
747 * and it is impossible to fix since SSL_pending cannot report
748 * errors that may be observed while scanning the new data.
749 * (Note that SSL_pending() is often used as a boolean value,
750 * so we'd better not return -1.)
752 return(s
->method
->ssl_pending(s
));
755 X509
*SSL_get_peer_certificate(const SSL
*s
)
759 if ((s
== NULL
) || (s
->session
== NULL
))
764 if (r
== NULL
) return(r
);
766 CRYPTO_add(&r
->references
,1,CRYPTO_LOCK_X509
);
771 STACK_OF(X509
) *SSL_get_peer_cert_chain(const SSL
*s
)
775 if ((s
== NULL
) || (s
->session
== NULL
) || (s
->session
->sess_cert
== NULL
))
778 r
=s
->session
->sess_cert
->cert_chain
;
780 /* If we are a client, cert_chain includes the peer's own
781 * certificate; if we are a server, it does not. */
786 /* Now in theory, since the calling process own 't' it should be safe to
787 * modify. We need to be able to read f without being hassled */
788 void SSL_copy_session_id(SSL
*t
,const SSL
*f
)
792 /* Do we need to to SSL locking? */
793 SSL_set_session(t
,SSL_get_session(f
));
795 /* what if we are setup as SSLv2 but want to talk SSLv3 or
797 if (t
->method
!= f
->method
)
799 t
->method
->ssl_free(t
); /* cleanup current */
800 t
->method
=f
->method
; /* change method */
801 t
->method
->ssl_new(t
); /* setup new */
807 CRYPTO_add(&f
->cert
->references
,1,CRYPTO_LOCK_SSL_CERT
);
812 if (tmp
!= NULL
) ssl_cert_free(tmp
);
813 SSL_set_session_id_context(t
,f
->sid_ctx
,f
->sid_ctx_length
);
816 /* Fix this so it checks all the valid key/cert options */
817 int SSL_CTX_check_private_key(const SSL_CTX
*ctx
)
819 if ( (ctx
== NULL
) ||
820 (ctx
->cert
== NULL
) ||
821 (ctx
->cert
->key
->x509
== NULL
))
823 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,SSL_R_NO_CERTIFICATE_ASSIGNED
);
826 if (ctx
->cert
->key
->privatekey
== NULL
)
828 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
831 return(X509_check_private_key(ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
));
834 /* Fix this function so that it takes an optional type parameter */
835 int SSL_check_private_key(const SSL
*ssl
)
839 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,ERR_R_PASSED_NULL_PARAMETER
);
842 if (ssl
->cert
== NULL
)
844 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,SSL_R_NO_CERTIFICATE_ASSIGNED
);
847 if (ssl
->cert
->key
->x509
== NULL
)
849 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,SSL_R_NO_CERTIFICATE_ASSIGNED
);
852 if (ssl
->cert
->key
->privatekey
== NULL
)
854 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
857 return(X509_check_private_key(ssl
->cert
->key
->x509
,
858 ssl
->cert
->key
->privatekey
));
861 int SSL_accept(SSL
*s
)
863 if (s
->handshake_func
== 0)
864 /* Not properly initialized yet */
865 SSL_set_accept_state(s
);
867 return(s
->method
->ssl_accept(s
));
870 int SSL_connect(SSL
*s
)
872 if (s
->handshake_func
== 0)
873 /* Not properly initialized yet */
874 SSL_set_connect_state(s
);
876 return(s
->method
->ssl_connect(s
));
879 long SSL_get_default_timeout(const SSL
*s
)
881 return(s
->method
->get_timeout());
884 int SSL_read(SSL
*s
,void *buf
,int num
)
886 if (s
->handshake_func
== 0)
888 SSLerr(SSL_F_SSL_READ
, SSL_R_UNINITIALIZED
);
892 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
)
894 s
->rwstate
=SSL_NOTHING
;
897 return(s
->method
->ssl_read(s
,buf
,num
));
900 int SSL_peek(SSL
*s
,void *buf
,int num
)
902 if (s
->handshake_func
== 0)
904 SSLerr(SSL_F_SSL_PEEK
, SSL_R_UNINITIALIZED
);
908 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
)
912 return(s
->method
->ssl_peek(s
,buf
,num
));
915 int SSL_write(SSL
*s
,const void *buf
,int num
)
917 if (s
->handshake_func
== 0)
919 SSLerr(SSL_F_SSL_WRITE
, SSL_R_UNINITIALIZED
);
923 if (s
->shutdown
& SSL_SENT_SHUTDOWN
)
925 s
->rwstate
=SSL_NOTHING
;
926 SSLerr(SSL_F_SSL_WRITE
,SSL_R_PROTOCOL_IS_SHUTDOWN
);
929 return(s
->method
->ssl_write(s
,buf
,num
));
932 int SSL_shutdown(SSL
*s
)
934 /* Note that this function behaves differently from what one might
935 * expect. Return values are 0 for no success (yet),
936 * 1 for success; but calling it once is usually not enough,
937 * even if blocking I/O is used (see ssl3_shutdown).
940 if (s
->handshake_func
== 0)
942 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
946 if ((s
!= NULL
) && !SSL_in_init(s
))
947 return(s
->method
->ssl_shutdown(s
));
952 int SSL_renegotiate(SSL
*s
)
954 if (s
->new_session
== 0)
958 return(s
->method
->ssl_renegotiate(s
));
961 int SSL_renegotiate_pending(SSL
*s
)
963 /* becomes true when negotiation is requested;
964 * false again once a handshake has finished */
965 return (s
->new_session
!= 0);
968 long SSL_ctrl(SSL
*s
,int cmd
,long larg
,void *parg
)
974 case SSL_CTRL_GET_READ_AHEAD
:
975 return(s
->read_ahead
);
976 case SSL_CTRL_SET_READ_AHEAD
:
981 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
982 s
->msg_callback_arg
= parg
;
985 case SSL_CTRL_OPTIONS
:
986 return(s
->options
|=larg
);
988 return(s
->mode
|=larg
);
989 case SSL_CTRL_GET_MAX_CERT_LIST
:
990 return(s
->max_cert_list
);
991 case SSL_CTRL_SET_MAX_CERT_LIST
:
993 s
->max_cert_list
=larg
;
995 case SSL_CTRL_SET_MTU
:
996 if (SSL_version(s
) == DTLS1_VERSION
)
1003 return(s
->method
->ssl_ctrl(s
,cmd
,larg
,parg
));
1007 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
)(void))
1011 case SSL_CTRL_SET_MSG_CALLBACK
:
1012 s
->msg_callback
= (void (*)(int write_p
, int version
, int content_type
, const void *buf
, size_t len
, SSL
*ssl
, void *arg
))(fp
);
1016 return(s
->method
->ssl_callback_ctrl(s
,cmd
,fp
));
1020 struct lhash_st
*SSL_CTX_sessions(SSL_CTX
*ctx
)
1022 return ctx
->sessions
;
1025 long SSL_CTX_ctrl(SSL_CTX
*ctx
,int cmd
,long larg
,void *parg
)
1031 case SSL_CTRL_GET_READ_AHEAD
:
1032 return(ctx
->read_ahead
);
1033 case SSL_CTRL_SET_READ_AHEAD
:
1035 ctx
->read_ahead
=larg
;
1038 case SSL_CTRL_SET_MSG_CALLBACK_ARG
:
1039 ctx
->msg_callback_arg
= parg
;
1042 case SSL_CTRL_GET_MAX_CERT_LIST
:
1043 return(ctx
->max_cert_list
);
1044 case SSL_CTRL_SET_MAX_CERT_LIST
:
1045 l
=ctx
->max_cert_list
;
1046 ctx
->max_cert_list
=larg
;
1049 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
1050 l
=ctx
->session_cache_size
;
1051 ctx
->session_cache_size
=larg
;
1053 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
1054 return(ctx
->session_cache_size
);
1055 case SSL_CTRL_SET_SESS_CACHE_MODE
:
1056 l
=ctx
->session_cache_mode
;
1057 ctx
->session_cache_mode
=larg
;
1059 case SSL_CTRL_GET_SESS_CACHE_MODE
:
1060 return(ctx
->session_cache_mode
);
1062 case SSL_CTRL_SESS_NUMBER
:
1063 return(ctx
->sessions
->num_items
);
1064 case SSL_CTRL_SESS_CONNECT
:
1065 return(ctx
->stats
.sess_connect
);
1066 case SSL_CTRL_SESS_CONNECT_GOOD
:
1067 return(ctx
->stats
.sess_connect_good
);
1068 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
1069 return(ctx
->stats
.sess_connect_renegotiate
);
1070 case SSL_CTRL_SESS_ACCEPT
:
1071 return(ctx
->stats
.sess_accept
);
1072 case SSL_CTRL_SESS_ACCEPT_GOOD
:
1073 return(ctx
->stats
.sess_accept_good
);
1074 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
1075 return(ctx
->stats
.sess_accept_renegotiate
);
1076 case SSL_CTRL_SESS_HIT
:
1077 return(ctx
->stats
.sess_hit
);
1078 case SSL_CTRL_SESS_CB_HIT
:
1079 return(ctx
->stats
.sess_cb_hit
);
1080 case SSL_CTRL_SESS_MISSES
:
1081 return(ctx
->stats
.sess_miss
);
1082 case SSL_CTRL_SESS_TIMEOUTS
:
1083 return(ctx
->stats
.sess_timeout
);
1084 case SSL_CTRL_SESS_CACHE_FULL
:
1085 return(ctx
->stats
.sess_cache_full
);
1086 case SSL_CTRL_OPTIONS
:
1087 return(ctx
->options
|=larg
);
1089 return(ctx
->mode
|=larg
);
1091 return(ctx
->method
->ssl_ctx_ctrl(ctx
,cmd
,larg
,parg
));
1095 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
)(void))
1099 case SSL_CTRL_SET_MSG_CALLBACK
:
1100 ctx
->msg_callback
= (void (*)(int write_p
, int version
, int content_type
, const void *buf
, size_t len
, SSL
*ssl
, void *arg
))(fp
);
1104 return(ctx
->method
->ssl_ctx_callback_ctrl(ctx
,cmd
,fp
));
1108 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
1116 return((l
> 0)?1:-1);
1119 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
* const *ap
,
1120 const SSL_CIPHER
* const *bp
)
1124 l
=(*ap
)->id
-(*bp
)->id
;
1128 return((l
> 0)?1:-1);
1131 /** return a STACK of the ciphers available for the SSL and in order of
1133 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(const SSL
*s
)
1137 if (s
->cipher_list
!= NULL
)
1139 return(s
->cipher_list
);
1141 else if ((s
->ctx
!= NULL
) &&
1142 (s
->ctx
->cipher_list
!= NULL
))
1144 return(s
->ctx
->cipher_list
);
1150 /** return a STACK of the ciphers available for the SSL and in order of
1152 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
1156 if (s
->cipher_list_by_id
!= NULL
)
1158 return(s
->cipher_list_by_id
);
1160 else if ((s
->ctx
!= NULL
) &&
1161 (s
->ctx
->cipher_list_by_id
!= NULL
))
1163 return(s
->ctx
->cipher_list_by_id
);
1169 /** The old interface to get the same thing as SSL_get_ciphers() */
1170 const char *SSL_get_cipher_list(const SSL
*s
,int n
)
1173 STACK_OF(SSL_CIPHER
) *sk
;
1175 if (s
== NULL
) return(NULL
);
1176 sk
=SSL_get_ciphers(s
);
1177 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
1179 c
=sk_SSL_CIPHER_value(sk
,n
);
1180 if (c
== NULL
) return(NULL
);
1184 /** specify the ciphers to be used by default by the SSL_CTX */
1185 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
1187 STACK_OF(SSL_CIPHER
) *sk
;
1189 sk
=ssl_create_cipher_list(ctx
->method
,&ctx
->cipher_list
,
1190 &ctx
->cipher_list_by_id
,str
);
1191 /* ssl_create_cipher_list may return an empty stack if it
1192 * was unable to find a cipher matching the given rule string
1193 * (for example if the rule string specifies a cipher which
1194 * has been disabled). This is not an error as far as
1195 * ssl_create_cipher_list is concerned, and hence
1196 * ctx->cipher_list and ctx->cipher_list_by_id has been
1200 else if (sk_SSL_CIPHER_num(sk
) == 0)
1202 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
1208 /** specify the ciphers to be used by the SSL */
1209 int SSL_set_cipher_list(SSL
*s
,const char *str
)
1211 STACK_OF(SSL_CIPHER
) *sk
;
1213 sk
=ssl_create_cipher_list(s
->ctx
->method
,&s
->cipher_list
,
1214 &s
->cipher_list_by_id
,str
);
1215 /* see comment in SSL_CTX_set_cipher_list */
1218 else if (sk_SSL_CIPHER_num(sk
) == 0)
1220 SSLerr(SSL_F_SSL_SET_CIPHER_LIST
, SSL_R_NO_CIPHER_MATCH
);
1226 /* works well for SSLv2, not so good for SSLv3 */
1227 char *SSL_get_shared_ciphers(const SSL
*s
,char *buf
,int len
)
1230 STACK_OF(SSL_CIPHER
) *sk
;
1234 if ((s
->session
== NULL
) || (s
->session
->ciphers
== NULL
) ||
1239 sk
=s
->session
->ciphers
;
1240 for (i
=0; i
<sk_SSL_CIPHER_num(sk
); i
++)
1244 c
=sk_SSL_CIPHER_value(sk
,i
);
1262 int ssl_cipher_list_to_bytes(SSL
*s
,STACK_OF(SSL_CIPHER
) *sk
,unsigned char *p
,
1263 int (*put_cb
)(const SSL_CIPHER
*, unsigned char *))
1268 #ifndef OPENSSL_NO_KRB5
1269 int nokrb5
= !kssl_tgt_is_available(s
->kssl_ctx
);
1270 #endif /* OPENSSL_NO_KRB5 */
1272 if (sk
== NULL
) return(0);
1275 for (i
=0; i
<sk_SSL_CIPHER_num(sk
); i
++)
1277 c
=sk_SSL_CIPHER_value(sk
,i
);
1278 #ifndef OPENSSL_NO_KRB5
1279 if ((c
->algorithms
& SSL_KRB5
) && nokrb5
)
1281 #endif /* OPENSSL_NO_KRB5 */
1283 j
= put_cb
? put_cb(c
,p
) : ssl_put_cipher_by_char(s
,c
,p
);
1289 STACK_OF(SSL_CIPHER
) *ssl_bytes_to_cipher_list(SSL
*s
,unsigned char *p
,int num
,
1290 STACK_OF(SSL_CIPHER
) **skp
)
1293 STACK_OF(SSL_CIPHER
) *sk
;
1296 n
=ssl_put_cipher_by_char(s
,NULL
,NULL
);
1299 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
1302 if ((skp
== NULL
) || (*skp
== NULL
))
1303 sk
=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1307 sk_SSL_CIPHER_zero(sk
);
1310 for (i
=0; i
<num
; i
+=n
)
1312 c
=ssl_get_cipher_by_char(s
,p
);
1316 if (!sk_SSL_CIPHER_push(sk
,c
))
1318 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,ERR_R_MALLOC_FAILURE
);
1328 if ((skp
== NULL
) || (*skp
== NULL
))
1329 sk_SSL_CIPHER_free(sk
);
1333 #ifndef OPENSSL_NO_TLSEXT
1334 /** return a servername extension value if provided in Client Hello, or NULL.
1335 * So far, only host_name types are defined (RFC 3546).
1338 const char *SSL_get_servername(const SSL
*s
, const int type
)
1340 if (type
!= TLSEXT_NAMETYPE_host_name
)
1343 return s
->session
&& !s
->tlsext_hostname
?
1344 s
->session
->tlsext_hostname
:
1348 int SSL_get_servername_type(const SSL
*s
)
1350 if (s
->session
&& (!s
->tlsext_hostname
? s
->session
->tlsext_hostname
: s
->tlsext_hostname
))
1351 return TLSEXT_NAMETYPE_host_name
;
1356 unsigned long SSL_SESSION_hash(const SSL_SESSION
*a
)
1361 ((unsigned int) a
->session_id
[0] )|
1362 ((unsigned int) a
->session_id
[1]<< 8L)|
1363 ((unsigned long)a
->session_id
[2]<<16L)|
1364 ((unsigned long)a
->session_id
[3]<<24L);
1368 /* NB: If this function (or indeed the hash function which uses a sort of
1369 * coarser function than this one) is changed, ensure
1370 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1371 * able to construct an SSL_SESSION that will collide with any existing session
1372 * with a matching session ID. */
1373 int SSL_SESSION_cmp(const SSL_SESSION
*a
,const SSL_SESSION
*b
)
1375 if (a
->ssl_version
!= b
->ssl_version
)
1377 if (a
->session_id_length
!= b
->session_id_length
)
1379 return(memcmp(a
->session_id
,b
->session_id
,a
->session_id_length
));
1382 /* These wrapper functions should remain rather than redeclaring
1383 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1384 * variable. The reason is that the functions aren't static, they're exposed via
1386 static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash
, SSL_SESSION
*)
1387 static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp
, SSL_SESSION
*)
1389 SSL_CTX
*SSL_CTX_new(SSL_METHOD
*meth
)
1395 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_NULL_SSL_METHOD_PASSED
);
1400 if (FIPS_mode() && (meth
->version
< TLS1_VERSION
))
1402 SSLerr(SSL_F_SSL_CTX_NEW
, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE
);
1407 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1409 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
1412 ret
=(SSL_CTX
*)OPENSSL_malloc(sizeof(SSL_CTX
));
1416 memset(ret
,0,sizeof(SSL_CTX
));
1420 ret
->cert_store
=NULL
;
1421 ret
->session_cache_mode
=SSL_SESS_CACHE_SERVER
;
1422 ret
->session_cache_size
=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
1423 ret
->session_cache_head
=NULL
;
1424 ret
->session_cache_tail
=NULL
;
1426 /* We take the system default */
1427 ret
->session_timeout
=meth
->get_timeout();
1429 ret
->new_session_cb
=0;
1430 ret
->remove_session_cb
=0;
1431 ret
->get_session_cb
=0;
1432 ret
->generate_session_id
=0;
1434 memset((char *)&ret
->stats
,0,sizeof(ret
->stats
));
1437 ret
->quiet_shutdown
=0;
1439 /* ret->cipher=NULL;*/
1440 /* ret->s2->challenge=NULL;
1441 ret->master_key=NULL;
1443 ret->s2->conn_id=NULL; */
1445 ret
->info_callback
=NULL
;
1447 ret
->app_verify_callback
=0;
1448 ret
->app_verify_arg
=NULL
;
1450 ret
->max_cert_list
=SSL_MAX_CERT_LIST_DEFAULT
;
1452 ret
->msg_callback
=0;
1453 ret
->msg_callback_arg
=NULL
;
1454 ret
->verify_mode
=SSL_VERIFY_NONE
;
1456 ret
->verify_depth
=-1; /* Don't impose a limit (but x509_lu.c does) */
1458 ret
->sid_ctx_length
=0;
1459 ret
->default_verify_callback
=NULL
;
1460 if ((ret
->cert
=ssl_cert_new()) == NULL
)
1463 ret
->default_passwd_callback
=0;
1464 ret
->default_passwd_callback_userdata
=NULL
;
1465 ret
->client_cert_cb
=0;
1466 ret
->app_gen_cookie_cb
=0;
1467 ret
->app_verify_cookie_cb
=0;
1469 ret
->sessions
=lh_new(LHASH_HASH_FN(SSL_SESSION_hash
),
1470 LHASH_COMP_FN(SSL_SESSION_cmp
));
1471 if (ret
->sessions
== NULL
) goto err
;
1472 ret
->cert_store
=X509_STORE_new();
1473 if (ret
->cert_store
== NULL
) goto err
;
1475 ssl_create_cipher_list(ret
->method
,
1476 &ret
->cipher_list
,&ret
->cipher_list_by_id
,
1477 SSL_DEFAULT_CIPHER_LIST
);
1478 if (ret
->cipher_list
== NULL
1479 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0)
1481 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_LIBRARY_HAS_NO_CIPHERS
);
1485 ret
->param
= X509_VERIFY_PARAM_new();
1489 if ((ret
->rsa_md5
=EVP_get_digestbyname("ssl2-md5")) == NULL
)
1491 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES
);
1494 if ((ret
->md5
=EVP_get_digestbyname("ssl3-md5")) == NULL
)
1496 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
1499 if ((ret
->sha1
=EVP_get_digestbyname("ssl3-sha1")) == NULL
)
1501 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
1505 if ((ret
->client_CA
=sk_X509_NAME_new_null()) == NULL
)
1508 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, ret
, &ret
->ex_data
);
1510 ret
->extra_certs
=NULL
;
1511 ret
->comp_methods
=SSL_COMP_get_compression_methods();
1513 #ifndef OPENSSL_NO_TLSEXT
1514 ret
->tlsext_servername_callback
= 0;
1515 ret
->tlsext_servername_arg
= NULL
;
1516 /* Setup RFC4507 ticket keys */
1517 if ((RAND_pseudo_bytes(ret
->tlsext_tick_key_name
, 16) <= 0)
1518 || (RAND_bytes(ret
->tlsext_tick_hmac_key
, 16) <= 0)
1519 || (RAND_bytes(ret
->tlsext_tick_aes_key
, 16) <= 0))
1520 ret
->options
|= SSL_OP_NO_TICKET
;
1522 ret
->tlsext_status_cb
= 0;
1523 ret
->tlsext_status_arg
= NULL
;
1527 #ifndef OPENSSL_NO_ENGINE
1528 ret
->client_cert_engine
= NULL
;
1529 #ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1530 #define eng_strx(x) #x
1531 #define eng_str(x) eng_strx(x)
1532 /* Use specific client engine automatically... ignore errors */
1535 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
1539 ENGINE_load_builtin_engines();
1540 eng
= ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO
));
1542 if (!eng
|| !SSL_CTX_set_client_cert_engine(ret
, eng
))
1550 SSLerr(SSL_F_SSL_CTX_NEW
,ERR_R_MALLOC_FAILURE
);
1552 if (ret
!= NULL
) SSL_CTX_free(ret
);
1557 static void SSL_COMP_free(SSL_COMP
*comp
)
1558 { OPENSSL_free(comp
); }
1561 void SSL_CTX_free(SSL_CTX
*a
)
1565 if (a
== NULL
) return;
1567 i
=CRYPTO_add(&a
->references
,-1,CRYPTO_LOCK_SSL_CTX
);
1569 REF_PRINT("SSL_CTX",a
);
1575 fprintf(stderr
,"SSL_CTX_free, bad reference count\n");
1581 X509_VERIFY_PARAM_free(a
->param
);
1584 * Free internal session cache. However: the remove_cb() may reference
1585 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1586 * after the sessions were flushed.
1587 * As the ex_data handling routines might also touch the session cache,
1588 * the most secure solution seems to be: empty (flush) the cache, then
1589 * free ex_data, then finally free the cache.
1590 * (See ticket [openssl.org #212].)
1592 if (a
->sessions
!= NULL
)
1593 SSL_CTX_flush_sessions(a
,0);
1595 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX
, a
, &a
->ex_data
);
1597 if (a
->sessions
!= NULL
)
1598 lh_free(a
->sessions
);
1600 if (a
->cert_store
!= NULL
)
1601 X509_STORE_free(a
->cert_store
);
1602 if (a
->cipher_list
!= NULL
)
1603 sk_SSL_CIPHER_free(a
->cipher_list
);
1604 if (a
->cipher_list_by_id
!= NULL
)
1605 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
1606 if (a
->cert
!= NULL
)
1607 ssl_cert_free(a
->cert
);
1608 if (a
->client_CA
!= NULL
)
1609 sk_X509_NAME_pop_free(a
->client_CA
,X509_NAME_free
);
1610 if (a
->extra_certs
!= NULL
)
1611 sk_X509_pop_free(a
->extra_certs
,X509_free
);
1612 #if 0 /* This should never be done, since it removes a global database */
1613 if (a
->comp_methods
!= NULL
)
1614 sk_SSL_COMP_pop_free(a
->comp_methods
,SSL_COMP_free
);
1616 a
->comp_methods
= NULL
;
1618 #ifndef OPENSSL_NO_ENGINE
1619 if (a
->client_cert_engine
)
1620 ENGINE_finish(a
->client_cert_engine
);
1625 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
1627 ctx
->default_passwd_callback
=cb
;
1630 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
,void *u
)
1632 ctx
->default_passwd_callback_userdata
=u
;
1635 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
, int (*cb
)(X509_STORE_CTX
*,void *), void *arg
)
1637 ctx
->app_verify_callback
=cb
;
1638 ctx
->app_verify_arg
=arg
;
1641 void SSL_CTX_set_verify(SSL_CTX
*ctx
,int mode
,int (*cb
)(int, X509_STORE_CTX
*))
1643 ctx
->verify_mode
=mode
;
1644 ctx
->default_verify_callback
=cb
;
1647 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
,int depth
)
1649 X509_VERIFY_PARAM_set_depth(ctx
->param
, depth
);
1652 void ssl_set_cert_masks(CERT
*c
, SSL_CIPHER
*cipher
)
1655 int rsa_enc
,rsa_tmp
,rsa_sign
,dh_tmp
,dh_rsa
,dh_dsa
,dsa_sign
;
1656 int rsa_enc_export
,dh_rsa_export
,dh_dsa_export
;
1657 int rsa_tmp_export
,dh_tmp_export
,kl
;
1658 unsigned long mask
,emask
;
1659 int have_ecc_cert
, ecdh_ok
, ecdsa_ok
, ecc_pkey_size
;
1660 #ifndef OPENSSL_NO_ECDH
1664 EVP_PKEY
*ecc_pkey
= NULL
;
1665 int signature_nid
= 0;
1667 if (c
== NULL
) return;
1669 kl
=SSL_C_EXPORT_PKEYLENGTH(cipher
);
1671 #ifndef OPENSSL_NO_RSA
1672 rsa_tmp
=(c
->rsa_tmp
!= NULL
|| c
->rsa_tmp_cb
!= NULL
);
1673 rsa_tmp_export
=(c
->rsa_tmp_cb
!= NULL
||
1674 (rsa_tmp
&& RSA_size(c
->rsa_tmp
)*8 <= kl
));
1676 rsa_tmp
=rsa_tmp_export
=0;
1678 #ifndef OPENSSL_NO_DH
1679 dh_tmp
=(c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
);
1680 dh_tmp_export
=(c
->dh_tmp_cb
!= NULL
||
1681 (dh_tmp
&& DH_size(c
->dh_tmp
)*8 <= kl
));
1683 dh_tmp
=dh_tmp_export
=0;
1686 #ifndef OPENSSL_NO_ECDH
1687 have_ecdh_tmp
=(c
->ecdh_tmp
!= NULL
|| c
->ecdh_tmp_cb
!= NULL
);
1689 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_ENC
]);
1690 rsa_enc
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1691 rsa_enc_export
=(rsa_enc
&& EVP_PKEY_size(cpk
->privatekey
)*8 <= kl
);
1692 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_SIGN
]);
1693 rsa_sign
=(cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1694 cpk
= &(c
->pkeys
[SSL_PKEY_DSA_SIGN
]);
1695 dsa_sign
=(cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1696 cpk
= &(c
->pkeys
[SSL_PKEY_DH_RSA
]);
1697 dh_rsa
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1698 dh_rsa_export
=(dh_rsa
&& EVP_PKEY_size(cpk
->privatekey
)*8 <= kl
);
1699 cpk
= &(c
->pkeys
[SSL_PKEY_DH_DSA
]);
1700 /* FIX THIS EAY EAY EAY */
1701 dh_dsa
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1702 dh_dsa_export
=(dh_dsa
&& EVP_PKEY_size(cpk
->privatekey
)*8 <= kl
);
1703 cpk
= &(c
->pkeys
[SSL_PKEY_ECC
]);
1704 have_ecc_cert
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1709 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1710 rsa_tmp
,rsa_tmp_export
,dh_tmp
,
1711 rsa_enc
,rsa_enc_export
,rsa_sign
,dsa_sign
,dh_rsa
,dh_dsa
);
1714 if (rsa_enc
|| (rsa_tmp
&& rsa_sign
))
1716 if (rsa_enc_export
|| (rsa_tmp_export
&& (rsa_sign
|| rsa_enc
)))
1720 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1721 if ( (dh_tmp
|| dh_rsa
|| dh_dsa
) &&
1722 (rsa_enc
|| rsa_sign
|| dsa_sign
))
1724 if ((dh_tmp_export
|| dh_rsa_export
|| dh_dsa_export
) &&
1725 (rsa_enc
|| rsa_sign
|| dsa_sign
))
1735 if (dh_rsa
) mask
|=SSL_kDHr
;
1736 if (dh_rsa_export
) emask
|=SSL_kDHr
;
1738 if (dh_dsa
) mask
|=SSL_kDHd
;
1739 if (dh_dsa_export
) emask
|=SSL_kDHd
;
1741 if (rsa_enc
|| rsa_sign
)
1756 #ifndef OPENSSL_NO_KRB5
1757 mask
|=SSL_kKRB5
|SSL_aKRB5
;
1758 emask
|=SSL_kKRB5
|SSL_aKRB5
;
1761 /* An ECC certificate may be usable for ECDH and/or
1762 * ECDSA cipher suites depending on the key usage extension.
1766 /* This call populates extension flags (ex_flags) */
1767 x
= (c
->pkeys
[SSL_PKEY_ECC
]).x509
;
1768 X509_check_purpose(x
, -1, 0);
1769 ecdh_ok
= (x
->ex_flags
& EXFLAG_KUSAGE
) ?
1770 (x
->ex_kusage
& X509v3_KU_KEY_AGREEMENT
) : 1;
1771 ecdsa_ok
= (x
->ex_flags
& EXFLAG_KUSAGE
) ?
1772 (x
->ex_kusage
& X509v3_KU_DIGITAL_SIGNATURE
) : 1;
1773 ecc_pkey
= X509_get_pubkey(x
);
1774 ecc_pkey_size
= (ecc_pkey
!= NULL
) ?
1775 EVP_PKEY_bits(ecc_pkey
) : 0;
1776 EVP_PKEY_free(ecc_pkey
);
1777 if ((x
->sig_alg
) && (x
->sig_alg
->algorithm
))
1778 signature_nid
= OBJ_obj2nid(x
->sig_alg
->algorithm
);
1779 #ifndef OPENSSL_NO_ECDH
1782 if ((signature_nid
== NID_md5WithRSAEncryption
) ||
1783 (signature_nid
== NID_md4WithRSAEncryption
) ||
1784 (signature_nid
== NID_md2WithRSAEncryption
))
1786 mask
|=SSL_kECDH
|SSL_aRSA
;
1787 if (ecc_pkey_size
<= 163)
1788 emask
|=SSL_kECDH
|SSL_aRSA
;
1790 if (signature_nid
== NID_ecdsa_with_SHA1
)
1792 mask
|=SSL_kECDH
|SSL_aECDSA
;
1793 if (ecc_pkey_size
<= 163)
1794 emask
|=SSL_kECDH
|SSL_aECDSA
;
1798 #ifndef OPENSSL_NO_ECDSA
1807 #ifndef OPENSSL_NO_ECDH
1815 c
->export_mask
=emask
;
1819 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
1820 #define ku_reject(x, usage) \
1821 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
1823 int check_srvr_ecc_cert_and_alg(X509
*x
, SSL_CIPHER
*cs
)
1825 unsigned long alg
= cs
->algorithms
;
1826 EVP_PKEY
*pkey
= NULL
;
1828 int signature_nid
= 0;
1830 if (SSL_C_IS_EXPORT(cs
))
1832 /* ECDH key length in export ciphers must be <= 163 bits */
1833 pkey
= X509_get_pubkey(x
);
1834 if (pkey
== NULL
) return 0;
1835 keysize
= EVP_PKEY_bits(pkey
);
1836 EVP_PKEY_free(pkey
);
1837 if (keysize
> 163) return 0;
1840 /* This call populates the ex_flags field correctly */
1841 X509_check_purpose(x
, -1, 0);
1842 if ((x
->sig_alg
) && (x
->sig_alg
->algorithm
))
1843 signature_nid
= OBJ_obj2nid(x
->sig_alg
->algorithm
);
1844 if (alg
& SSL_kECDH
)
1846 /* key usage, if present, must allow key agreement */
1847 if (ku_reject(x
, X509v3_KU_KEY_AGREEMENT
))
1851 if (alg
& SSL_aECDSA
)
1853 /* signature alg must be ECDSA */
1854 if (signature_nid
!= NID_ecdsa_with_SHA1
)
1861 /* signature alg must be RSA */
1862 if ((signature_nid
!= NID_md5WithRSAEncryption
) &&
1863 (signature_nid
!= NID_md4WithRSAEncryption
) &&
1864 (signature_nid
!= NID_md2WithRSAEncryption
))
1870 else if (alg
& SSL_aECDSA
)
1872 /* key usage, if present, must allow signing */
1873 if (ku_reject(x
, X509v3_KU_DIGITAL_SIGNATURE
))
1879 return 1; /* all checks are ok */
1882 /* THIS NEEDS CLEANING UP */
1883 X509
*ssl_get_server_send_cert(SSL
*s
)
1885 unsigned long alg
,mask
,kalg
;
1890 ssl_set_cert_masks(c
, s
->s3
->tmp
.new_cipher
);
1891 alg
=s
->s3
->tmp
.new_cipher
->algorithms
;
1892 is_export
=SSL_C_IS_EXPORT(s
->s3
->tmp
.new_cipher
);
1893 mask
=is_export
?c
->export_mask
:c
->mask
;
1894 kalg
=alg
&(SSL_MKEY_MASK
|SSL_AUTH_MASK
);
1896 if (kalg
& SSL_kECDH
)
1898 /* we don't need to look at SSL_kECDHE
1899 * since no certificate is needed for
1900 * anon ECDH and for authenticated
1901 * ECDHE, the check for the auth
1902 * algorithm will set i correctly
1903 * NOTE: For ECDH-RSA, we need an ECC
1904 * not an RSA cert but for ECDHE-RSA
1905 * we need an RSA cert. Placing the
1906 * checks for SSL_kECDH before RSA
1907 * checks ensures the correct cert is chosen.
1911 else if (kalg
& SSL_aECDSA
)
1915 else if (kalg
& SSL_kDHr
)
1917 else if (kalg
& SSL_kDHd
)
1919 else if (kalg
& SSL_aDSS
)
1920 i
=SSL_PKEY_DSA_SIGN
;
1921 else if (kalg
& SSL_aRSA
)
1923 if (c
->pkeys
[SSL_PKEY_RSA_ENC
].x509
== NULL
)
1924 i
=SSL_PKEY_RSA_SIGN
;
1928 else if (kalg
& SSL_aKRB5
)
1930 /* VRS something else here? */
1933 else /* if (kalg & SSL_aNULL) */
1935 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT
,ERR_R_INTERNAL_ERROR
);
1938 if (c
->pkeys
[i
].x509
== NULL
) return(NULL
);
1940 return(c
->pkeys
[i
].x509
);
1943 EVP_PKEY
*ssl_get_sign_pkey(SSL
*s
,SSL_CIPHER
*cipher
)
1948 alg
=cipher
->algorithms
;
1951 if ((alg
& SSL_aDSS
) &&
1952 (c
->pkeys
[SSL_PKEY_DSA_SIGN
].privatekey
!= NULL
))
1953 return(c
->pkeys
[SSL_PKEY_DSA_SIGN
].privatekey
);
1954 else if (alg
& SSL_aRSA
)
1956 if (c
->pkeys
[SSL_PKEY_RSA_SIGN
].privatekey
!= NULL
)
1957 return(c
->pkeys
[SSL_PKEY_RSA_SIGN
].privatekey
);
1958 else if (c
->pkeys
[SSL_PKEY_RSA_ENC
].privatekey
!= NULL
)
1959 return(c
->pkeys
[SSL_PKEY_RSA_ENC
].privatekey
);
1963 else if ((alg
& SSL_aECDSA
) &&
1964 (c
->pkeys
[SSL_PKEY_ECC
].privatekey
!= NULL
))
1965 return(c
->pkeys
[SSL_PKEY_ECC
].privatekey
);
1966 else /* if (alg & SSL_aNULL) */
1968 SSLerr(SSL_F_SSL_GET_SIGN_PKEY
,ERR_R_INTERNAL_ERROR
);
1973 void ssl_update_cache(SSL
*s
,int mode
)
1977 /* If the session_id_length is 0, we are not supposed to cache it,
1978 * and it would be rather hard to do anyway :-) */
1979 if (s
->session
->session_id_length
== 0) return;
1981 i
=s
->ctx
->session_cache_mode
;
1982 if ((i
& mode
) && (!s
->hit
)
1983 && ((i
& SSL_SESS_CACHE_NO_INTERNAL_STORE
)
1984 || SSL_CTX_add_session(s
->ctx
,s
->session
))
1985 && (s
->ctx
->new_session_cb
!= NULL
))
1987 CRYPTO_add(&s
->session
->references
,1,CRYPTO_LOCK_SSL_SESSION
);
1988 if (!s
->ctx
->new_session_cb(s
,s
->session
))
1989 SSL_SESSION_free(s
->session
);
1992 /* auto flush every 255 connections */
1993 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) &&
1994 ((i
& mode
) == mode
))
1996 if ( (((mode
& SSL_SESS_CACHE_CLIENT
)
1997 ?s
->ctx
->stats
.sess_connect_good
1998 :s
->ctx
->stats
.sess_accept_good
) & 0xff) == 0xff)
2000 SSL_CTX_flush_sessions(s
->ctx
,(unsigned long)time(NULL
));
2005 SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
2010 int SSL_set_ssl_method(SSL
*s
,SSL_METHOD
*meth
)
2015 if (s
->method
!= meth
)
2017 if (s
->handshake_func
!= NULL
)
2018 conn
=(s
->handshake_func
== s
->method
->ssl_connect
);
2020 if (s
->method
->version
== meth
->version
)
2024 s
->method
->ssl_free(s
);
2026 ret
=s
->method
->ssl_new(s
);
2030 s
->handshake_func
=meth
->ssl_connect
;
2032 s
->handshake_func
=meth
->ssl_accept
;
2037 int SSL_get_error(const SSL
*s
,int i
)
2043 if (i
> 0) return(SSL_ERROR_NONE
);
2045 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2046 * etc, where we do encode the error */
2047 if ((l
=ERR_peek_error()) != 0)
2049 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
2050 return(SSL_ERROR_SYSCALL
);
2052 return(SSL_ERROR_SSL
);
2055 if ((i
< 0) && SSL_want_read(s
))
2057 bio
=SSL_get_rbio(s
);
2058 if (BIO_should_read(bio
))
2059 return(SSL_ERROR_WANT_READ
);
2060 else if (BIO_should_write(bio
))
2061 /* This one doesn't make too much sense ... We never try
2062 * to write to the rbio, and an application program where
2063 * rbio and wbio are separate couldn't even know what it
2065 * However if we ever set s->rwstate incorrectly
2066 * (so that we have SSL_want_read(s) instead of
2067 * SSL_want_write(s)) and rbio and wbio *are* the same,
2068 * this test works around that bug; so it might be safer
2070 return(SSL_ERROR_WANT_WRITE
);
2071 else if (BIO_should_io_special(bio
))
2073 reason
=BIO_get_retry_reason(bio
);
2074 if (reason
== BIO_RR_CONNECT
)
2075 return(SSL_ERROR_WANT_CONNECT
);
2076 else if (reason
== BIO_RR_ACCEPT
)
2077 return(SSL_ERROR_WANT_ACCEPT
);
2079 return(SSL_ERROR_SYSCALL
); /* unknown */
2083 if ((i
< 0) && SSL_want_write(s
))
2085 bio
=SSL_get_wbio(s
);
2086 if (BIO_should_write(bio
))
2087 return(SSL_ERROR_WANT_WRITE
);
2088 else if (BIO_should_read(bio
))
2089 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2090 return(SSL_ERROR_WANT_READ
);
2091 else if (BIO_should_io_special(bio
))
2093 reason
=BIO_get_retry_reason(bio
);
2094 if (reason
== BIO_RR_CONNECT
)
2095 return(SSL_ERROR_WANT_CONNECT
);
2096 else if (reason
== BIO_RR_ACCEPT
)
2097 return(SSL_ERROR_WANT_ACCEPT
);
2099 return(SSL_ERROR_SYSCALL
);
2102 if ((i
< 0) && SSL_want_x509_lookup(s
))
2104 return(SSL_ERROR_WANT_X509_LOOKUP
);
2109 if (s
->version
== SSL2_VERSION
)
2111 /* assume it is the socket being closed */
2112 return(SSL_ERROR_ZERO_RETURN
);
2116 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
2117 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
2118 return(SSL_ERROR_ZERO_RETURN
);
2121 return(SSL_ERROR_SYSCALL
);
2124 int SSL_do_handshake(SSL
*s
)
2128 if (s
->handshake_func
== NULL
)
2130 SSLerr(SSL_F_SSL_DO_HANDSHAKE
,SSL_R_CONNECTION_TYPE_NOT_SET
);
2134 s
->method
->ssl_renegotiate_check(s
);
2136 if (SSL_in_init(s
) || SSL_in_before(s
))
2138 ret
=s
->handshake_func(s
);
2143 /* For the next 2 functions, SSL_clear() sets shutdown and so
2144 * one of these calls will reset it */
2145 void SSL_set_accept_state(SSL
*s
)
2149 s
->state
=SSL_ST_ACCEPT
|SSL_ST_BEFORE
;
2150 s
->handshake_func
=s
->method
->ssl_accept
;
2151 /* clear the current cipher */
2152 ssl_clear_cipher_ctx(s
);
2155 void SSL_set_connect_state(SSL
*s
)
2159 s
->state
=SSL_ST_CONNECT
|SSL_ST_BEFORE
;
2160 s
->handshake_func
=s
->method
->ssl_connect
;
2161 /* clear the current cipher */
2162 ssl_clear_cipher_ctx(s
);
2165 int ssl_undefined_function(SSL
*s
)
2167 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2171 int ssl_undefined_void_function(void)
2173 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2177 int ssl_undefined_const_function(const SSL
*s
)
2179 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2183 SSL_METHOD
*ssl_bad_method(int ver
)
2185 SSLerr(SSL_F_SSL_BAD_METHOD
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
2189 const char *SSL_get_version(const SSL
*s
)
2191 if (s
->version
== TLS1_VERSION
)
2193 else if (s
->version
== SSL3_VERSION
)
2195 else if (s
->version
== SSL2_VERSION
)
2201 SSL
*SSL_dup(SSL
*s
)
2203 STACK_OF(X509_NAME
) *sk
;
2208 if ((ret
=SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
2211 ret
->version
= s
->version
;
2212 ret
->type
= s
->type
;
2213 ret
->method
= s
->method
;
2215 if (s
->session
!= NULL
)
2217 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2218 SSL_copy_session_id(ret
,s
);
2222 /* No session has been established yet, so we have to expect
2223 * that s->cert or ret->cert will be changed later --
2224 * they should not both point to the same object,
2225 * and thus we can't use SSL_copy_session_id. */
2227 ret
->method
->ssl_free(ret
);
2228 ret
->method
= s
->method
;
2229 ret
->method
->ssl_new(ret
);
2231 if (s
->cert
!= NULL
)
2233 if (ret
->cert
!= NULL
)
2235 ssl_cert_free(ret
->cert
);
2237 ret
->cert
= ssl_cert_dup(s
->cert
);
2238 if (ret
->cert
== NULL
)
2242 SSL_set_session_id_context(ret
,
2243 s
->sid_ctx
, s
->sid_ctx_length
);
2246 ret
->options
=s
->options
;
2248 SSL_set_max_cert_list(ret
,SSL_get_max_cert_list(s
));
2249 SSL_set_read_ahead(ret
,SSL_get_read_ahead(s
));
2250 ret
->msg_callback
= s
->msg_callback
;
2251 ret
->msg_callback_arg
= s
->msg_callback_arg
;
2252 SSL_set_verify(ret
,SSL_get_verify_mode(s
),
2253 SSL_get_verify_callback(s
));
2254 SSL_set_verify_depth(ret
,SSL_get_verify_depth(s
));
2255 ret
->generate_session_id
= s
->generate_session_id
;
2257 SSL_set_info_callback(ret
,SSL_get_info_callback(s
));
2259 ret
->debug
=s
->debug
;
2261 /* copy app data, a little dangerous perhaps */
2262 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL
, &ret
->ex_data
, &s
->ex_data
))
2265 /* setup rbio, and wbio */
2266 if (s
->rbio
!= NULL
)
2268 if (!BIO_dup_state(s
->rbio
,(char *)&ret
->rbio
))
2271 if (s
->wbio
!= NULL
)
2273 if (s
->wbio
!= s
->rbio
)
2275 if (!BIO_dup_state(s
->wbio
,(char *)&ret
->wbio
))
2279 ret
->wbio
=ret
->rbio
;
2281 ret
->rwstate
= s
->rwstate
;
2282 ret
->in_handshake
= s
->in_handshake
;
2283 ret
->handshake_func
= s
->handshake_func
;
2284 ret
->server
= s
->server
;
2285 ret
->new_session
= s
->new_session
;
2286 ret
->quiet_shutdown
= s
->quiet_shutdown
;
2287 ret
->shutdown
=s
->shutdown
;
2288 ret
->state
=s
->state
; /* SSL_dup does not really work at any state, though */
2289 ret
->rstate
=s
->rstate
;
2290 ret
->init_num
= 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2293 X509_VERIFY_PARAM_inherit(ret
->param
, s
->param
);
2295 /* dup the cipher_list and cipher_list_by_id stacks */
2296 if (s
->cipher_list
!= NULL
)
2298 if ((ret
->cipher_list
=sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
2301 if (s
->cipher_list_by_id
!= NULL
)
2302 if ((ret
->cipher_list_by_id
=sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
2306 /* Dup the client_CA list */
2307 if (s
->client_CA
!= NULL
)
2309 if ((sk
=sk_X509_NAME_dup(s
->client_CA
)) == NULL
) goto err
;
2311 for (i
=0; i
<sk_X509_NAME_num(sk
); i
++)
2313 xn
=sk_X509_NAME_value(sk
,i
);
2314 if (sk_X509_NAME_set(sk
,i
,X509_NAME_dup(xn
)) == NULL
)
2325 if (ret
!= NULL
) SSL_free(ret
);
2331 void ssl_clear_cipher_ctx(SSL
*s
)
2333 if (s
->enc_read_ctx
!= NULL
)
2335 EVP_CIPHER_CTX_cleanup(s
->enc_read_ctx
);
2336 OPENSSL_free(s
->enc_read_ctx
);
2337 s
->enc_read_ctx
=NULL
;
2339 if (s
->enc_write_ctx
!= NULL
)
2341 EVP_CIPHER_CTX_cleanup(s
->enc_write_ctx
);
2342 OPENSSL_free(s
->enc_write_ctx
);
2343 s
->enc_write_ctx
=NULL
;
2345 #ifndef OPENSSL_NO_COMP
2346 if (s
->expand
!= NULL
)
2348 COMP_CTX_free(s
->expand
);
2351 if (s
->compress
!= NULL
)
2353 COMP_CTX_free(s
->compress
);
2359 /* Fix this function so that it takes an optional type parameter */
2360 X509
*SSL_get_certificate(const SSL
*s
)
2362 if (s
->cert
!= NULL
)
2363 return(s
->cert
->key
->x509
);
2368 /* Fix this function so that it takes an optional type parameter */
2369 EVP_PKEY
*SSL_get_privatekey(SSL
*s
)
2371 if (s
->cert
!= NULL
)
2372 return(s
->cert
->key
->privatekey
);
2377 SSL_CIPHER
*SSL_get_current_cipher(const SSL
*s
)
2379 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
2380 return(s
->session
->cipher
);
2383 #ifdef OPENSSL_NO_COMP
2384 const void *SSL_get_current_compression(SSL
*s
)
2388 const void *SSL_get_current_expansion(SSL
*s
)
2394 const COMP_METHOD
*SSL_get_current_compression(SSL
*s
)
2396 if (s
->compress
!= NULL
)
2397 return(s
->compress
->meth
);
2401 const COMP_METHOD
*SSL_get_current_expansion(SSL
*s
)
2403 if (s
->expand
!= NULL
)
2404 return(s
->expand
->meth
);
2409 int ssl_init_wbio_buffer(SSL
*s
,int push
)
2413 if (s
->bbio
== NULL
)
2415 bbio
=BIO_new(BIO_f_buffer());
2416 if (bbio
== NULL
) return(0);
2422 if (s
->bbio
== s
->wbio
)
2423 s
->wbio
=BIO_pop(s
->wbio
);
2425 (void)BIO_reset(bbio
);
2426 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2427 if (!BIO_set_read_buffer_size(bbio
,1))
2429 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
,ERR_R_BUF_LIB
);
2434 if (s
->wbio
!= bbio
)
2435 s
->wbio
=BIO_push(bbio
,s
->wbio
);
2439 if (s
->wbio
== bbio
)
2440 s
->wbio
=BIO_pop(bbio
);
2445 void ssl_free_wbio_buffer(SSL
*s
)
2447 if (s
->bbio
== NULL
) return;
2449 if (s
->bbio
== s
->wbio
)
2451 /* remove buffering */
2452 s
->wbio
=BIO_pop(s
->wbio
);
2453 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2454 assert(s
->wbio
!= NULL
);
2461 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
,int mode
)
2463 ctx
->quiet_shutdown
=mode
;
2466 int SSL_CTX_get_quiet_shutdown(const SSL_CTX
*ctx
)
2468 return(ctx
->quiet_shutdown
);
2471 void SSL_set_quiet_shutdown(SSL
*s
,int mode
)
2473 s
->quiet_shutdown
=mode
;
2476 int SSL_get_quiet_shutdown(const SSL
*s
)
2478 return(s
->quiet_shutdown
);
2481 void SSL_set_shutdown(SSL
*s
,int mode
)
2486 int SSL_get_shutdown(const SSL
*s
)
2488 return(s
->shutdown
);
2491 int SSL_version(const SSL
*s
)
2496 SSL_CTX
*SSL_get_SSL_CTX(const SSL
*ssl
)
2501 SSL_CTX
*SSL_set_SSL_CTX(SSL
*ssl
, SSL_CTX
* ctx
)
2503 if (ssl
->ctx
== ctx
)
2505 #ifndef OPENSSL_NO_TLSEXT
2507 ctx
= ssl
->initial_ctx
;
2509 if (ssl
->cert
!= NULL
)
2510 ssl_cert_free(ssl
->cert
);
2511 ssl
->cert
= ssl_cert_dup(ctx
->cert
);
2512 CRYPTO_add(&ctx
->references
,1,CRYPTO_LOCK_SSL_CTX
);
2513 if (ssl
->ctx
!= NULL
)
2514 SSL_CTX_free(ssl
->ctx
); /* decrement reference count */
2519 #ifndef OPENSSL_NO_STDIO
2520 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
2522 return(X509_STORE_set_default_paths(ctx
->cert_store
));
2525 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
2528 return(X509_STORE_load_locations(ctx
->cert_store
,CAfile
,CApath
));
2532 void SSL_set_info_callback(SSL
*ssl
,
2533 void (*cb
)(const SSL
*ssl
,int type
,int val
))
2535 ssl
->info_callback
=cb
;
2538 /* One compiler (Diab DCC) doesn't like argument names in returned
2539 function pointer. */
2540 void (*SSL_get_info_callback(const SSL
*ssl
))(const SSL
* /*ssl*/,int /*type*/,int /*val*/)
2542 return ssl
->info_callback
;
2545 int SSL_state(const SSL
*ssl
)
2550 void SSL_set_verify_result(SSL
*ssl
,long arg
)
2552 ssl
->verify_result
=arg
;
2555 long SSL_get_verify_result(const SSL
*ssl
)
2557 return(ssl
->verify_result
);
2560 int SSL_get_ex_new_index(long argl
,void *argp
,CRYPTO_EX_new
*new_func
,
2561 CRYPTO_EX_dup
*dup_func
,CRYPTO_EX_free
*free_func
)
2563 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL
, argl
, argp
,
2564 new_func
, dup_func
, free_func
);
2567 int SSL_set_ex_data(SSL
*s
,int idx
,void *arg
)
2569 return(CRYPTO_set_ex_data(&s
->ex_data
,idx
,arg
));
2572 void *SSL_get_ex_data(const SSL
*s
,int idx
)
2574 return(CRYPTO_get_ex_data(&s
->ex_data
,idx
));
2577 int SSL_CTX_get_ex_new_index(long argl
,void *argp
,CRYPTO_EX_new
*new_func
,
2578 CRYPTO_EX_dup
*dup_func
,CRYPTO_EX_free
*free_func
)
2580 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX
, argl
, argp
,
2581 new_func
, dup_func
, free_func
);
2584 int SSL_CTX_set_ex_data(SSL_CTX
*s
,int idx
,void *arg
)
2586 return(CRYPTO_set_ex_data(&s
->ex_data
,idx
,arg
));
2589 void *SSL_CTX_get_ex_data(const SSL_CTX
*s
,int idx
)
2591 return(CRYPTO_get_ex_data(&s
->ex_data
,idx
));
2599 X509_STORE
*SSL_CTX_get_cert_store(const SSL_CTX
*ctx
)
2601 return(ctx
->cert_store
);
2604 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
,X509_STORE
*store
)
2606 if (ctx
->cert_store
!= NULL
)
2607 X509_STORE_free(ctx
->cert_store
);
2608 ctx
->cert_store
=store
;
2611 int SSL_want(const SSL
*s
)
2617 * \brief Set the callback for generating temporary RSA keys.
2618 * \param ctx the SSL context.
2619 * \param cb the callback
2622 #ifndef OPENSSL_NO_RSA
2623 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX
*ctx
,RSA
*(*cb
)(SSL
*ssl
,
2627 SSL_CTX_callback_ctrl(ctx
,SSL_CTRL_SET_TMP_RSA_CB
,(void (*)(void))cb
);
2630 void SSL_set_tmp_rsa_callback(SSL
*ssl
,RSA
*(*cb
)(SSL
*ssl
,
2634 SSL_callback_ctrl(ssl
,SSL_CTRL_SET_TMP_RSA_CB
,(void (*)(void))cb
);
2640 * \brief The RSA temporary key callback function.
2641 * \param ssl the SSL session.
2642 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2643 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2644 * of the required key in bits.
2645 * \return the temporary RSA key.
2646 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2649 RSA
*cb(SSL
*ssl
,int is_export
,int keylength
)
2654 * \brief Set the callback for generating temporary DH keys.
2655 * \param ctx the SSL context.
2656 * \param dh the callback
2659 #ifndef OPENSSL_NO_DH
2660 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,DH
*(*dh
)(SSL
*ssl
,int is_export
,
2663 SSL_CTX_callback_ctrl(ctx
,SSL_CTRL_SET_TMP_DH_CB
,(void (*)(void))dh
);
2666 void SSL_set_tmp_dh_callback(SSL
*ssl
,DH
*(*dh
)(SSL
*ssl
,int is_export
,
2669 SSL_callback_ctrl(ssl
,SSL_CTRL_SET_TMP_DH_CB
,(void (*)(void))dh
);
2673 #ifndef OPENSSL_NO_ECDH
2674 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX
*ctx
,EC_KEY
*(*ecdh
)(SSL
*ssl
,int is_export
,
2677 SSL_CTX_callback_ctrl(ctx
,SSL_CTRL_SET_TMP_ECDH_CB
,(void (*)(void))ecdh
);
2680 void SSL_set_tmp_ecdh_callback(SSL
*ssl
,EC_KEY
*(*ecdh
)(SSL
*ssl
,int is_export
,
2683 SSL_callback_ctrl(ssl
,SSL_CTRL_SET_TMP_ECDH_CB
,(void (*)(void))ecdh
);
2688 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
))
2690 SSL_CTX_callback_ctrl(ctx
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
2692 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
))
2694 SSL_callback_ctrl(ssl
, SSL_CTRL_SET_MSG_CALLBACK
, (void (*)(void))cb
);
2699 #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
2700 #include "../crypto/bio/bss_file.c"
2703 IMPLEMENT_STACK_OF(SSL_CIPHER
)
2704 IMPLEMENT_STACK_OF(SSL_COMP
)