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.]
64 #include <openssl/objects.h>
65 #include <openssl/lhash.h>
66 #include <openssl/x509v3.h>
69 const char *SSL_version_str
=OPENSSL_VERSION_TEXT
;
71 static STACK_OF(CRYPTO_EX_DATA_FUNCS
) *ssl_meth
=NULL
;
72 static STACK_OF(CRYPTO_EX_DATA_FUNCS
) *ssl_ctx_meth
=NULL
;
73 static int ssl_meth_num
=0;
74 static int ssl_ctx_meth_num
=0;
76 OPENSSL_GLOBAL SSL3_ENC_METHOD ssl3_undef_enc_method
={
77 /* evil casts, but these functions are only called if there's a library bug */
78 (int (*)(SSL
*,int))ssl_undefined_function
,
79 (int (*)(SSL
*, unsigned char *, int))ssl_undefined_function
,
80 ssl_undefined_function
,
81 (int (*)(SSL
*, unsigned char *, unsigned char *, int))ssl_undefined_function
,
82 (int (*)(SSL
*, int))ssl_undefined_function
,
83 (int (*)(SSL
*, EVP_MD_CTX
*, EVP_MD_CTX
*, const char*, int, unsigned char *))ssl_undefined_function
89 if (s
->method
== NULL
)
91 SSLerr(SSL_F_SSL_CLEAR
,SSL_R_NO_METHOD_SPECIFIED
);
95 if (ssl_clear_bad_session(s
))
97 SSL_SESSION_free(s
->session
);
105 #if 0 /* Disabled since version 1.10 of this file (early return not
106 * needed because SSL_clear is not called when doing renegotiation) */
107 /* This is set if we are doing dynamic renegotiation so keep
108 * the old cipher. It is sort of a SSL_clear_lite :-) */
109 if (s
->new_session
) return(1);
113 SSLerr(SSL_F_SSL_CLEAR
,SSL_R_INTERNAL_ERROR
);
120 s
->state
=SSL_ST_BEFORE
|((s
->server
)?SSL_ST_ACCEPT
:SSL_ST_CONNECT
);
122 s
->version
=s
->method
->version
;
123 s
->client_version
=s
->version
;
124 s
->rwstate
=SSL_NOTHING
;
125 s
->rstate
=SSL_ST_READ_HEADER
;
127 s
->read_ahead
=s
->ctx
->read_ahead
;
130 if (s
->init_buf
!= NULL
)
132 BUF_MEM_free(s
->init_buf
);
136 ssl_clear_cipher_ctx(s
);
141 /* Check to see if we were changed into a different method, if
142 * so, revert back if we are not doing session-id reuse. */
143 if (!s
->in_handshake
&& (s
->session
== NULL
) && (s
->method
!= s
->ctx
->method
))
145 s
->method
->ssl_free(s
);
146 s
->method
=s
->ctx
->method
;
147 if (!s
->method
->ssl_new(s
))
152 s
->method
->ssl_clear(s
);
156 /** Used to change an SSL_CTXs default SSL method type */
157 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
,SSL_METHOD
*meth
)
159 STACK_OF(SSL_CIPHER
) *sk
;
163 sk
=ssl_create_cipher_list(ctx
->method
,&(ctx
->cipher_list
),
164 &(ctx
->cipher_list_by_id
),SSL_DEFAULT_CIPHER_LIST
);
165 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0))
167 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
173 SSL
*SSL_new(SSL_CTX
*ctx
)
179 SSLerr(SSL_F_SSL_NEW
,SSL_R_NULL_SSL_CTX
);
182 if (ctx
->method
== NULL
)
184 SSLerr(SSL_F_SSL_NEW
,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
188 s
=(SSL
*)OPENSSL_malloc(sizeof(SSL
));
189 if (s
== NULL
) goto err
;
190 memset(s
,0,sizeof(SSL
));
192 if (ctx
->cert
!= NULL
)
194 /* Earlier library versions used to copy the pointer to
195 * the CERT, not its contents; only when setting new
196 * parameters for the per-SSL copy, ssl_cert_new would be
197 * called (and the direct reference to the per-SSL_CTX
198 * settings would be lost, but those still were indirectly
199 * accessed for various purposes, and for that reason they
200 * used to be known as s->ctx->default_cert).
201 * Now we don't look at the SSL_CTX's CERT after having
202 * duplicated it once. */
204 s
->cert
= ssl_cert_dup(ctx
->cert
);
209 s
->cert
=NULL
; /* Cannot really happen (see SSL_CTX_new) */
210 s
->sid_ctx_length
=ctx
->sid_ctx_length
;
211 memcpy(&s
->sid_ctx
,&ctx
->sid_ctx
,sizeof(s
->sid_ctx
));
212 s
->verify_mode
=ctx
->verify_mode
;
213 s
->verify_depth
=ctx
->verify_depth
;
214 s
->verify_callback
=ctx
->default_verify_callback
;
215 s
->purpose
= ctx
->purpose
;
216 s
->trust
= ctx
->trust
;
217 CRYPTO_add(&ctx
->references
,1,CRYPTO_LOCK_SSL_CTX
);
220 s
->verify_result
=X509_V_OK
;
222 s
->method
=ctx
->method
;
224 if (!s
->method
->ssl_new(s
))
227 s
->quiet_shutdown
=ctx
->quiet_shutdown
;
229 s
->server
=(ctx
->method
->ssl_accept
== ssl_undefined_function
)?0:1;
230 s
->options
=ctx
->options
;
232 s
->read_ahead
=ctx
->read_ahead
; /* used to happen in SSL_clear */
235 CRYPTO_new_ex_data(ssl_meth
,s
,&s
->ex_data
);
242 ssl_cert_free(s
->cert
);
244 SSL_CTX_free(s
->ctx
); /* decrement reference count */
247 SSLerr(SSL_F_SSL_NEW
,ERR_R_MALLOC_FAILURE
);
251 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
,const unsigned char *sid_ctx
,
252 unsigned int sid_ctx_len
)
254 if(sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
)
256 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
259 ctx
->sid_ctx_length
=sid_ctx_len
;
260 memcpy(ctx
->sid_ctx
,sid_ctx
,sid_ctx_len
);
265 int SSL_set_session_id_context(SSL
*ssl
,const unsigned char *sid_ctx
,
266 unsigned int sid_ctx_len
)
268 if(sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
)
270 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
273 ssl
->sid_ctx_length
=sid_ctx_len
;
274 memcpy(ssl
->sid_ctx
,sid_ctx
,sid_ctx_len
);
279 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
281 if(X509_PURPOSE_get_by_id(purpose
) == -1) {
282 SSLerr(SSL_F_SSL_CTX_SET_PURPOSE
, SSL_R_INVALID_PURPOSE
);
285 s
->purpose
= purpose
;
289 int SSL_set_purpose(SSL
*s
, int purpose
)
291 if(X509_PURPOSE_get_by_id(purpose
) == -1) {
292 SSLerr(SSL_F_SSL_SET_PURPOSE
, SSL_R_INVALID_PURPOSE
);
295 s
->purpose
= purpose
;
299 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
301 if(X509_TRUST_get_by_id(trust
) == -1) {
302 SSLerr(SSL_F_SSL_CTX_SET_TRUST
, SSL_R_INVALID_TRUST
);
309 int SSL_set_trust(SSL
*s
, int trust
)
311 if(X509_TRUST_get_by_id(trust
) == -1) {
312 SSLerr(SSL_F_SSL_SET_TRUST
, SSL_R_INVALID_TRUST
);
319 void SSL_free(SSL
*s
)
326 i
=CRYPTO_add(&s
->references
,-1,CRYPTO_LOCK_SSL
);
334 fprintf(stderr
,"SSL_free, bad reference count\n");
339 CRYPTO_free_ex_data(ssl_meth
,(char *)s
,&s
->ex_data
);
343 /* If the buffering BIO is in place, pop it off */
344 if (s
->bbio
== s
->wbio
)
346 s
->wbio
=BIO_pop(s
->wbio
);
352 BIO_free_all(s
->rbio
);
353 if ((s
->wbio
!= NULL
) && (s
->wbio
!= s
->rbio
))
354 BIO_free_all(s
->wbio
);
356 if (s
->init_buf
!= NULL
) BUF_MEM_free(s
->init_buf
);
358 /* add extra stuff */
359 if (s
->cipher_list
!= NULL
) sk_SSL_CIPHER_free(s
->cipher_list
);
360 if (s
->cipher_list_by_id
!= NULL
) sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
362 /* Make the next call work :-) */
363 if (s
->session
!= NULL
)
365 ssl_clear_bad_session(s
);
366 SSL_SESSION_free(s
->session
);
369 ssl_clear_cipher_ctx(s
);
371 if (s
->cert
!= NULL
) ssl_cert_free(s
->cert
);
372 /* Free up if allocated */
374 if (s
->ctx
) SSL_CTX_free(s
->ctx
);
376 if (s
->client_CA
!= NULL
)
377 sk_X509_NAME_pop_free(s
->client_CA
,X509_NAME_free
);
379 if (s
->method
!= NULL
) s
->method
->ssl_free(s
);
384 void SSL_set_bio(SSL
*s
,BIO
*rbio
,BIO
*wbio
)
386 /* If the output buffering BIO is still in place, remove it
390 if (s
->wbio
== s
->bbio
)
392 s
->wbio
=s
->wbio
->next_bio
;
393 s
->bbio
->next_bio
=NULL
;
396 if ((s
->rbio
!= NULL
) && (s
->rbio
!= rbio
))
397 BIO_free_all(s
->rbio
);
398 if ((s
->wbio
!= NULL
) && (s
->wbio
!= wbio
) && (s
->rbio
!= s
->wbio
))
399 BIO_free_all(s
->wbio
);
404 BIO
*SSL_get_rbio(SSL
*s
)
407 BIO
*SSL_get_wbio(SSL
*s
)
410 int SSL_get_fd(SSL
*s
)
412 return(SSL_get_rfd(s
));
415 int SSL_get_rfd(SSL
*s
)
421 r
=BIO_find_type(b
,BIO_TYPE_DESCRIPTOR
);
427 int SSL_get_wfd(SSL
*s
)
433 r
=BIO_find_type(b
,BIO_TYPE_DESCRIPTOR
);
440 int SSL_set_fd(SSL
*s
,int fd
)
445 bio
=BIO_new(BIO_s_socket());
449 SSLerr(SSL_F_SSL_SET_FD
,ERR_R_BUF_LIB
);
452 BIO_set_fd(bio
,fd
,BIO_NOCLOSE
);
453 SSL_set_bio(s
,bio
,bio
);
459 int SSL_set_wfd(SSL
*s
,int fd
)
464 if ((s
->rbio
== NULL
) || (BIO_method_type(s
->rbio
) != BIO_TYPE_SOCKET
)
465 || ((int)BIO_get_fd(s
->rbio
,NULL
) != fd
))
467 bio
=BIO_new(BIO_s_socket());
470 { SSLerr(SSL_F_SSL_SET_WFD
,ERR_R_BUF_LIB
); goto err
; }
471 BIO_set_fd(bio
,fd
,BIO_NOCLOSE
);
472 SSL_set_bio(s
,SSL_get_rbio(s
),bio
);
475 SSL_set_bio(s
,SSL_get_rbio(s
),SSL_get_rbio(s
));
481 int SSL_set_rfd(SSL
*s
,int fd
)
486 if ((s
->wbio
== NULL
) || (BIO_method_type(s
->wbio
) != BIO_TYPE_SOCKET
)
487 || ((int)BIO_get_fd(s
->wbio
,NULL
) != fd
))
489 bio
=BIO_new(BIO_s_socket());
493 SSLerr(SSL_F_SSL_SET_RFD
,ERR_R_BUF_LIB
);
496 BIO_set_fd(bio
,fd
,BIO_NOCLOSE
);
497 SSL_set_bio(s
,bio
,SSL_get_wbio(s
));
500 SSL_set_bio(s
,SSL_get_wbio(s
),SSL_get_wbio(s
));
508 /* return length of latest Finished message we sent, copy to 'buf' */
509 size_t SSL_get_finished(SSL
*s
, void *buf
, size_t count
)
515 ret
= s
->s3
->tmp
.finish_md_len
;
518 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
523 /* return length of latest Finished message we expected, copy to 'buf' */
524 size_t SSL_get_peer_finished(SSL
*s
, void *buf
, size_t count
)
530 ret
= s
->s3
->tmp
.peer_finish_md_len
;
533 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
539 int SSL_get_verify_mode(SSL
*s
)
541 return(s
->verify_mode
);
544 int SSL_get_verify_depth(SSL
*s
)
546 return(s
->verify_depth
);
549 int (*SSL_get_verify_callback(SSL
*s
))(int,X509_STORE_CTX
*)
551 return(s
->verify_callback
);
554 int SSL_CTX_get_verify_mode(SSL_CTX
*ctx
)
556 return(ctx
->verify_mode
);
559 int SSL_CTX_get_verify_depth(SSL_CTX
*ctx
)
561 return(ctx
->verify_depth
);
564 int (*SSL_CTX_get_verify_callback(SSL_CTX
*ctx
))(int,X509_STORE_CTX
*)
566 return(ctx
->default_verify_callback
);
569 void SSL_set_verify(SSL
*s
,int mode
,
570 int (*callback
)(int ok
,X509_STORE_CTX
*ctx
))
573 if (callback
!= NULL
)
574 s
->verify_callback
=callback
;
577 void SSL_set_verify_depth(SSL
*s
,int depth
)
579 s
->verify_depth
=depth
;
582 void SSL_set_read_ahead(SSL
*s
,int yes
)
587 int SSL_get_read_ahead(SSL
*s
)
589 return(s
->read_ahead
);
592 int SSL_pending(SSL
*s
)
594 return(s
->method
->ssl_pending(s
));
597 X509
*SSL_get_peer_certificate(SSL
*s
)
601 if ((s
== NULL
) || (s
->session
== NULL
))
606 if (r
== NULL
) return(r
);
608 CRYPTO_add(&r
->references
,1,CRYPTO_LOCK_X509
);
613 STACK_OF(X509
) *SSL_get_peer_cert_chain(SSL
*s
)
617 if ((s
== NULL
) || (s
->session
== NULL
) || (s
->session
->sess_cert
== NULL
))
620 r
=s
->session
->sess_cert
->cert_chain
;
622 /* If we are a client, cert_chain includes the peer's own
623 * certificate; if we are a server, it does not. */
628 /* Now in theory, since the calling process own 't' it should be safe to
629 * modify. We need to be able to read f without being hassled */
630 void SSL_copy_session_id(SSL
*t
,SSL
*f
)
634 /* Do we need to to SSL locking? */
635 SSL_set_session(t
,SSL_get_session(f
));
637 /* what if we are setup as SSLv2 but want to talk SSLv3 or
639 if (t
->method
!= f
->method
)
641 t
->method
->ssl_free(t
); /* cleanup current */
642 t
->method
=f
->method
; /* change method */
643 t
->method
->ssl_new(t
); /* setup new */
649 CRYPTO_add(&f
->cert
->references
,1,CRYPTO_LOCK_SSL_CERT
);
654 if (tmp
!= NULL
) ssl_cert_free(tmp
);
655 SSL_set_session_id_context(t
,f
->sid_ctx
,f
->sid_ctx_length
);
658 /* Fix this so it checks all the valid key/cert options */
659 int SSL_CTX_check_private_key(SSL_CTX
*ctx
)
661 if ( (ctx
== NULL
) ||
662 (ctx
->cert
== NULL
) ||
663 (ctx
->cert
->key
->x509
== NULL
))
665 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,SSL_R_NO_CERTIFICATE_ASSIGNED
);
668 if (ctx
->cert
->key
->privatekey
== NULL
)
670 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
673 return(X509_check_private_key(ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
));
676 /* Fix this function so that it takes an optional type parameter */
677 int SSL_check_private_key(SSL
*ssl
)
681 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,ERR_R_PASSED_NULL_PARAMETER
);
684 if (ssl
->cert
== NULL
)
686 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,SSL_R_NO_CERTIFICATE_ASSIGNED
);
689 if (ssl
->cert
->key
->x509
== NULL
)
691 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,SSL_R_NO_CERTIFICATE_ASSIGNED
);
694 if (ssl
->cert
->key
->privatekey
== NULL
)
696 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
699 return(X509_check_private_key(ssl
->cert
->key
->x509
,
700 ssl
->cert
->key
->privatekey
));
703 int SSL_accept(SSL
*s
)
705 if (s
->handshake_func
== 0)
706 /* Not properly initialized yet */
707 SSL_set_accept_state(s
);
709 return(s
->method
->ssl_accept(s
));
712 int SSL_connect(SSL
*s
)
714 if (s
->handshake_func
== 0)
715 /* Not properly initialized yet */
716 SSL_set_connect_state(s
);
718 return(s
->method
->ssl_connect(s
));
721 long SSL_get_default_timeout(SSL
*s
)
723 return(s
->method
->get_timeout());
726 int SSL_read(SSL
*s
,void *buf
,int num
)
728 if (s
->handshake_func
== 0)
730 SSLerr(SSL_F_SSL_READ
, SSL_R_UNINITIALIZED
);
734 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
)
736 s
->rwstate
=SSL_NOTHING
;
739 return(s
->method
->ssl_read(s
,buf
,num
));
742 int SSL_peek(SSL
*s
,void *buf
,int num
)
744 if (s
->handshake_func
== 0)
746 SSLerr(SSL_F_SSL_READ
, SSL_R_UNINITIALIZED
);
750 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
)
754 return(s
->method
->ssl_peek(s
,buf
,num
));
757 int SSL_write(SSL
*s
,const void *buf
,int num
)
759 if (s
->handshake_func
== 0)
761 SSLerr(SSL_F_SSL_WRITE
, SSL_R_UNINITIALIZED
);
765 if (s
->shutdown
& SSL_SENT_SHUTDOWN
)
767 s
->rwstate
=SSL_NOTHING
;
768 SSLerr(SSL_F_SSL_WRITE
,SSL_R_PROTOCOL_IS_SHUTDOWN
);
771 return(s
->method
->ssl_write(s
,buf
,num
));
774 int SSL_shutdown(SSL
*s
)
776 /* Note that this function behaves differently from what one might
777 * expect. Return values are 0 for no success (yet),
778 * 1 for success; but calling it once is usually not enough,
779 * even if blocking I/O is used (see ssl3_shutdown).
782 if (s
->handshake_func
== 0)
784 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
788 if ((s
!= NULL
) && !SSL_in_init(s
))
789 return(s
->method
->ssl_shutdown(s
));
794 int SSL_renegotiate(SSL
*s
)
796 if (s
->new_session
== 0)
800 return(s
->method
->ssl_renegotiate(s
));
803 long SSL_ctrl(SSL
*s
,int cmd
,long larg
,char *parg
)
809 case SSL_CTRL_GET_READ_AHEAD
:
810 return(s
->read_ahead
);
811 case SSL_CTRL_SET_READ_AHEAD
:
815 case SSL_CTRL_OPTIONS
:
816 return(s
->options
|=larg
);
818 return(s
->mode
|=larg
);
820 return(s
->method
->ssl_ctrl(s
,cmd
,larg
,parg
));
824 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
)())
829 return(s
->method
->ssl_callback_ctrl(s
,cmd
,fp
));
833 struct lhash_st
*SSL_CTX_sessions(SSL_CTX
*ctx
)
835 return ctx
->sessions
;
838 long SSL_CTX_ctrl(SSL_CTX
*ctx
,int cmd
,long larg
,char *parg
)
844 case SSL_CTRL_GET_READ_AHEAD
:
845 return(ctx
->read_ahead
);
846 case SSL_CTRL_SET_READ_AHEAD
:
848 ctx
->read_ahead
=larg
;
851 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
852 l
=ctx
->session_cache_size
;
853 ctx
->session_cache_size
=larg
;
855 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
856 return(ctx
->session_cache_size
);
857 case SSL_CTRL_SET_SESS_CACHE_MODE
:
858 l
=ctx
->session_cache_mode
;
859 ctx
->session_cache_mode
=larg
;
861 case SSL_CTRL_GET_SESS_CACHE_MODE
:
862 return(ctx
->session_cache_mode
);
864 case SSL_CTRL_SESS_NUMBER
:
865 return(ctx
->sessions
->num_items
);
866 case SSL_CTRL_SESS_CONNECT
:
867 return(ctx
->stats
.sess_connect
);
868 case SSL_CTRL_SESS_CONNECT_GOOD
:
869 return(ctx
->stats
.sess_connect_good
);
870 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
871 return(ctx
->stats
.sess_connect_renegotiate
);
872 case SSL_CTRL_SESS_ACCEPT
:
873 return(ctx
->stats
.sess_accept
);
874 case SSL_CTRL_SESS_ACCEPT_GOOD
:
875 return(ctx
->stats
.sess_accept_good
);
876 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
877 return(ctx
->stats
.sess_accept_renegotiate
);
878 case SSL_CTRL_SESS_HIT
:
879 return(ctx
->stats
.sess_hit
);
880 case SSL_CTRL_SESS_CB_HIT
:
881 return(ctx
->stats
.sess_cb_hit
);
882 case SSL_CTRL_SESS_MISSES
:
883 return(ctx
->stats
.sess_miss
);
884 case SSL_CTRL_SESS_TIMEOUTS
:
885 return(ctx
->stats
.sess_timeout
);
886 case SSL_CTRL_SESS_CACHE_FULL
:
887 return(ctx
->stats
.sess_cache_full
);
888 case SSL_CTRL_OPTIONS
:
889 return(ctx
->options
|=larg
);
891 return(ctx
->mode
|=larg
);
893 return(ctx
->method
->ssl_ctx_ctrl(ctx
,cmd
,larg
,parg
));
897 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
)())
902 return(ctx
->method
->ssl_ctx_callback_ctrl(ctx
,cmd
,fp
));
906 int ssl_cipher_id_cmp(const SSL_CIPHER
*a
, const SSL_CIPHER
*b
)
914 return((l
> 0)?1:-1);
917 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER
* const *ap
,
918 const SSL_CIPHER
* const *bp
)
922 l
=(*ap
)->id
-(*bp
)->id
;
926 return((l
> 0)?1:-1);
929 /** return a STACK of the ciphers available for the SSL and in order of
931 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(SSL
*s
)
933 if ((s
!= NULL
) && (s
->cipher_list
!= NULL
))
935 return(s
->cipher_list
);
937 else if ((s
->ctx
!= NULL
) &&
938 (s
->ctx
->cipher_list
!= NULL
))
940 return(s
->ctx
->cipher_list
);
945 /** return a STACK of the ciphers available for the SSL and in order of
947 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
949 if ((s
!= NULL
) && (s
->cipher_list_by_id
!= NULL
))
951 return(s
->cipher_list_by_id
);
953 else if ((s
!= NULL
) && (s
->ctx
!= NULL
) &&
954 (s
->ctx
->cipher_list_by_id
!= NULL
))
956 return(s
->ctx
->cipher_list_by_id
);
961 /** The old interface to get the same thing as SSL_get_ciphers() */
962 const char *SSL_get_cipher_list(SSL
*s
,int n
)
965 STACK_OF(SSL_CIPHER
) *sk
;
967 if (s
== NULL
) return(NULL
);
968 sk
=SSL_get_ciphers(s
);
969 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
971 c
=sk_SSL_CIPHER_value(sk
,n
);
972 if (c
== NULL
) return(NULL
);
976 /** specify the ciphers to be used by default by the SSL_CTX */
977 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
979 STACK_OF(SSL_CIPHER
) *sk
;
981 sk
=ssl_create_cipher_list(ctx
->method
,&ctx
->cipher_list
,
982 &ctx
->cipher_list_by_id
,str
);
984 return((sk
== NULL
)?0:1);
987 /** specify the ciphers to be used by the SSL */
988 int SSL_set_cipher_list(SSL
*s
,const char *str
)
990 STACK_OF(SSL_CIPHER
) *sk
;
992 sk
=ssl_create_cipher_list(s
->ctx
->method
,&s
->cipher_list
,
993 &s
->cipher_list_by_id
,str
);
995 return((sk
== NULL
)?0:1);
998 /* works well for SSLv2, not so good for SSLv3 */
999 char *SSL_get_shared_ciphers(SSL
*s
,char *buf
,int len
)
1003 STACK_OF(SSL_CIPHER
) *sk
;
1007 if ((s
->session
== NULL
) || (s
->session
->ciphers
== NULL
) ||
1012 sk
=s
->session
->ciphers
;
1013 for (i
=0; i
<sk_SSL_CIPHER_num(sk
); i
++)
1015 /* Decrement for either the ':' or a '\0' */
1017 c
=sk_SSL_CIPHER_value(sk
,i
);
1018 for (cp
=c
->name
; *cp
; )
1034 int ssl_cipher_list_to_bytes(SSL
*s
,STACK_OF(SSL_CIPHER
) *sk
,unsigned char *p
)
1040 if (sk
== NULL
) return(0);
1043 for (i
=0; i
<sk_SSL_CIPHER_num(sk
); i
++)
1045 c
=sk_SSL_CIPHER_value(sk
,i
);
1046 j
=ssl_put_cipher_by_char(s
,c
,p
);
1052 STACK_OF(SSL_CIPHER
) *ssl_bytes_to_cipher_list(SSL
*s
,unsigned char *p
,int num
,
1053 STACK_OF(SSL_CIPHER
) **skp
)
1056 STACK_OF(SSL_CIPHER
) *sk
;
1059 n
=ssl_put_cipher_by_char(s
,NULL
,NULL
);
1062 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
1065 if ((skp
== NULL
) || (*skp
== NULL
))
1066 sk
=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1070 sk_SSL_CIPHER_zero(sk
);
1073 for (i
=0; i
<num
; i
+=n
)
1075 c
=ssl_get_cipher_by_char(s
,p
);
1079 if (!sk_SSL_CIPHER_push(sk
,c
))
1081 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,ERR_R_MALLOC_FAILURE
);
1091 if ((skp
== NULL
) || (*skp
== NULL
))
1092 sk_SSL_CIPHER_free(sk
);
1096 unsigned long SSL_SESSION_hash(SSL_SESSION
*a
)
1101 ((unsigned int) a
->session_id
[0] )|
1102 ((unsigned int) a
->session_id
[1]<< 8L)|
1103 ((unsigned long)a
->session_id
[2]<<16L)|
1104 ((unsigned long)a
->session_id
[3]<<24L);
1108 int SSL_SESSION_cmp(SSL_SESSION
*a
,SSL_SESSION
*b
)
1110 if (a
->ssl_version
!= b
->ssl_version
)
1112 if (a
->session_id_length
!= b
->session_id_length
)
1114 return(memcmp(a
->session_id
,b
->session_id
,a
->session_id_length
));
1117 SSL_CTX
*SSL_CTX_new(SSL_METHOD
*meth
)
1123 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_NULL_SSL_METHOD_PASSED
);
1127 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1129 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
1132 ret
=(SSL_CTX
*)OPENSSL_malloc(sizeof(SSL_CTX
));
1136 memset(ret
,0,sizeof(SSL_CTX
));
1140 ret
->cert_store
=NULL
;
1141 ret
->session_cache_mode
=SSL_SESS_CACHE_SERVER
;
1142 ret
->session_cache_size
=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
1143 ret
->session_cache_head
=NULL
;
1144 ret
->session_cache_tail
=NULL
;
1146 /* We take the system default */
1147 ret
->session_timeout
=meth
->get_timeout();
1149 ret
->new_session_cb
=NULL
;
1150 ret
->remove_session_cb
=NULL
;
1151 ret
->get_session_cb
=NULL
;
1153 memset((char *)&ret
->stats
,0,sizeof(ret
->stats
));
1156 ret
->quiet_shutdown
=0;
1158 /* ret->cipher=NULL;*/
1159 /* ret->s2->challenge=NULL;
1160 ret->master_key=NULL;
1162 ret->s2->conn_id=NULL; */
1164 ret
->info_callback
=NULL
;
1166 ret
->app_verify_callback
=NULL
;
1167 ret
->app_verify_arg
=NULL
;
1170 ret
->verify_mode
=SSL_VERIFY_NONE
;
1171 ret
->verify_depth
=-1; /* Don't impose a limit (but x509_lu.c does) */
1172 ret
->default_verify_callback
=NULL
;
1173 if ((ret
->cert
=ssl_cert_new()) == NULL
)
1176 ret
->default_passwd_callback
=NULL
;
1177 ret
->default_passwd_callback_userdata
=NULL
;
1178 ret
->client_cert_cb
=NULL
;
1180 ret
->sessions
=lh_new(SSL_SESSION_hash
,SSL_SESSION_cmp
);
1181 if (ret
->sessions
== NULL
) goto err
;
1182 ret
->cert_store
=X509_STORE_new();
1183 if (ret
->cert_store
== NULL
) goto err
;
1185 ssl_create_cipher_list(ret
->method
,
1186 &ret
->cipher_list
,&ret
->cipher_list_by_id
,
1187 SSL_DEFAULT_CIPHER_LIST
);
1188 if (ret
->cipher_list
== NULL
1189 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0)
1191 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_LIBRARY_HAS_NO_CIPHERS
);
1195 if ((ret
->rsa_md5
=EVP_get_digestbyname("ssl2-md5")) == NULL
)
1197 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES
);
1200 if ((ret
->md5
=EVP_get_digestbyname("ssl3-md5")) == NULL
)
1202 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
1205 if ((ret
->sha1
=EVP_get_digestbyname("ssl3-sha1")) == NULL
)
1207 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
1211 if ((ret
->client_CA
=sk_X509_NAME_new_null()) == NULL
)
1214 CRYPTO_new_ex_data(ssl_ctx_meth
,(char *)ret
,&ret
->ex_data
);
1216 ret
->extra_certs
=NULL
;
1217 ret
->comp_methods
=SSL_COMP_get_compression_methods();
1221 SSLerr(SSL_F_SSL_CTX_NEW
,ERR_R_MALLOC_FAILURE
);
1223 if (ret
!= NULL
) SSL_CTX_free(ret
);
1227 static void SSL_COMP_free(SSL_COMP
*comp
)
1228 { OPENSSL_free(comp
); }
1230 void SSL_CTX_free(SSL_CTX
*a
)
1234 if (a
== NULL
) return;
1236 i
=CRYPTO_add(&a
->references
,-1,CRYPTO_LOCK_SSL_CTX
);
1238 REF_PRINT("SSL_CTX",a
);
1244 fprintf(stderr
,"SSL_CTX_free, bad reference count\n");
1248 CRYPTO_free_ex_data(ssl_ctx_meth
,(char *)a
,&a
->ex_data
);
1250 if (a
->sessions
!= NULL
)
1252 SSL_CTX_flush_sessions(a
,0);
1253 lh_free(a
->sessions
);
1255 if (a
->cert_store
!= NULL
)
1256 X509_STORE_free(a
->cert_store
);
1257 if (a
->cipher_list
!= NULL
)
1258 sk_SSL_CIPHER_free(a
->cipher_list
);
1259 if (a
->cipher_list_by_id
!= NULL
)
1260 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
1261 if (a
->cert
!= NULL
)
1262 ssl_cert_free(a
->cert
);
1263 if (a
->client_CA
!= NULL
)
1264 sk_X509_NAME_pop_free(a
->client_CA
,X509_NAME_free
);
1265 if (a
->extra_certs
!= NULL
)
1266 sk_X509_pop_free(a
->extra_certs
,X509_free
);
1267 if (a
->comp_methods
!= NULL
)
1268 sk_SSL_COMP_pop_free(a
->comp_methods
,SSL_COMP_free
);
1272 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
1274 ctx
->default_passwd_callback
=cb
;
1277 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
,void *u
)
1279 ctx
->default_passwd_callback_userdata
=u
;
1282 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,int (*cb
)(),char *arg
)
1285 * int (*cb)(X509_STORE_CTX *),
1287 * int (*cb)(X509_STORE_CTX *, void *arg)
1289 ctx
->app_verify_callback
=cb
;
1290 ctx
->app_verify_arg
=arg
; /* never used */
1293 void SSL_CTX_set_verify(SSL_CTX
*ctx
,int mode
,int (*cb
)(int, X509_STORE_CTX
*))
1295 ctx
->verify_mode
=mode
;
1296 ctx
->default_verify_callback
=cb
;
1299 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
,int depth
)
1301 ctx
->verify_depth
=depth
;
1304 void ssl_set_cert_masks(CERT
*c
, SSL_CIPHER
*cipher
)
1307 int rsa_enc
,rsa_tmp
,rsa_sign
,dh_tmp
,dh_rsa
,dh_dsa
,dsa_sign
;
1308 int rsa_enc_export
,dh_rsa_export
,dh_dsa_export
;
1309 int rsa_tmp_export
,dh_tmp_export
,kl
;
1310 unsigned long mask
,emask
;
1312 if (c
== NULL
) return;
1314 kl
=SSL_C_EXPORT_PKEYLENGTH(cipher
);
1317 rsa_tmp
=(c
->rsa_tmp
!= NULL
|| c
->rsa_tmp_cb
!= NULL
);
1318 rsa_tmp_export
=(c
->rsa_tmp_cb
!= NULL
||
1319 (rsa_tmp
&& RSA_size(c
->rsa_tmp
)*8 <= kl
));
1321 rsa_tmp
=rsa_tmp_export
=0;
1324 dh_tmp
=(c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
);
1325 dh_tmp_export
=(c
->dh_tmp_cb
!= NULL
||
1326 (dh_tmp
&& DH_size(c
->dh_tmp
)*8 <= kl
));
1328 dh_tmp
=dh_tmp_export
=0;
1331 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_ENC
]);
1332 rsa_enc
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1333 rsa_enc_export
=(rsa_enc
&& EVP_PKEY_size(cpk
->privatekey
)*8 <= kl
);
1334 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_SIGN
]);
1335 rsa_sign
=(cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1336 cpk
= &(c
->pkeys
[SSL_PKEY_DSA_SIGN
]);
1337 dsa_sign
=(cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1338 cpk
= &(c
->pkeys
[SSL_PKEY_DH_RSA
]);
1339 dh_rsa
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1340 dh_rsa_export
=(dh_rsa
&& EVP_PKEY_size(cpk
->privatekey
)*8 <= kl
);
1341 cpk
= &(c
->pkeys
[SSL_PKEY_DH_DSA
]);
1342 /* FIX THIS EAY EAY EAY */
1343 dh_dsa
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1344 dh_dsa_export
=(dh_dsa
&& EVP_PKEY_size(cpk
->privatekey
)*8 <= kl
);
1350 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1351 rsa_tmp
,rsa_tmp_export
,dh_tmp
,
1352 rsa_enc
,rsa_enc_export
,rsa_sign
,dsa_sign
,dh_rsa
,dh_dsa
);
1355 if (rsa_enc
|| (rsa_tmp
&& rsa_sign
))
1357 if (rsa_enc_export
|| (rsa_tmp_export
&& (rsa_sign
|| rsa_enc
)))
1361 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1362 if ( (dh_tmp
|| dh_rsa
|| dh_dsa
) &&
1363 (rsa_enc
|| rsa_sign
|| dsa_sign
))
1365 if ((dh_tmp_export
|| dh_rsa_export
|| dh_dsa_export
) &&
1366 (rsa_enc
|| rsa_sign
|| dsa_sign
))
1376 if (dh_rsa
) mask
|=SSL_kDHr
;
1377 if (dh_rsa_export
) emask
|=SSL_kDHr
;
1379 if (dh_dsa
) mask
|=SSL_kDHd
;
1380 if (dh_dsa_export
) emask
|=SSL_kDHd
;
1382 if (rsa_enc
|| rsa_sign
)
1398 c
->export_mask
=emask
;
1402 /* THIS NEEDS CLEANING UP */
1403 X509
*ssl_get_server_send_cert(SSL
*s
)
1405 unsigned long alg
,mask
,kalg
;
1410 ssl_set_cert_masks(c
, s
->s3
->tmp
.new_cipher
);
1411 alg
=s
->s3
->tmp
.new_cipher
->algorithms
;
1412 is_export
=SSL_C_IS_EXPORT(s
->s3
->tmp
.new_cipher
);
1413 mask
=is_export
?c
->export_mask
:c
->mask
;
1414 kalg
=alg
&(SSL_MKEY_MASK
|SSL_AUTH_MASK
);
1416 if (kalg
& SSL_kDHr
)
1418 else if (kalg
& SSL_kDHd
)
1420 else if (kalg
& SSL_aDSS
)
1421 i
=SSL_PKEY_DSA_SIGN
;
1422 else if (kalg
& SSL_aRSA
)
1424 if (c
->pkeys
[SSL_PKEY_RSA_ENC
].x509
== NULL
)
1425 i
=SSL_PKEY_RSA_SIGN
;
1429 else /* if (kalg & SSL_aNULL) */
1431 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT
,SSL_R_INTERNAL_ERROR
);
1434 if (c
->pkeys
[i
].x509
== NULL
) return(NULL
);
1435 return(c
->pkeys
[i
].x509
);
1438 EVP_PKEY
*ssl_get_sign_pkey(SSL
*s
,SSL_CIPHER
*cipher
)
1443 alg
=cipher
->algorithms
;
1446 if ((alg
& SSL_aDSS
) &&
1447 (c
->pkeys
[SSL_PKEY_DSA_SIGN
].privatekey
!= NULL
))
1448 return(c
->pkeys
[SSL_PKEY_DSA_SIGN
].privatekey
);
1449 else if (alg
& SSL_aRSA
)
1451 if (c
->pkeys
[SSL_PKEY_RSA_SIGN
].privatekey
!= NULL
)
1452 return(c
->pkeys
[SSL_PKEY_RSA_SIGN
].privatekey
);
1453 else if (c
->pkeys
[SSL_PKEY_RSA_ENC
].privatekey
!= NULL
)
1454 return(c
->pkeys
[SSL_PKEY_RSA_ENC
].privatekey
);
1458 else /* if (alg & SSL_aNULL) */
1460 SSLerr(SSL_F_SSL_GET_SIGN_PKEY
,SSL_R_INTERNAL_ERROR
);
1465 void ssl_update_cache(SSL
*s
,int mode
)
1469 /* If the session_id_length is 0, we are not supposed to cache it,
1470 * and it would be rather hard to do anyway :-) */
1471 if (s
->session
->session_id_length
== 0) return;
1473 i
=s
->ctx
->session_cache_mode
;
1474 if ((i
& mode
) && (!s
->hit
)
1475 && ((i
& SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
)
1476 || SSL_CTX_add_session(s
->ctx
,s
->session
))
1477 && (s
->ctx
->new_session_cb
!= NULL
))
1479 CRYPTO_add(&s
->session
->references
,1,CRYPTO_LOCK_SSL_SESSION
);
1480 if (!s
->ctx
->new_session_cb(s
,s
->session
))
1481 SSL_SESSION_free(s
->session
);
1484 /* auto flush every 255 connections */
1485 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) &&
1486 ((i
& mode
) == mode
))
1488 if ( (((mode
& SSL_SESS_CACHE_CLIENT
)
1489 ?s
->ctx
->stats
.sess_connect_good
1490 :s
->ctx
->stats
.sess_accept_good
) & 0xff) == 0xff)
1492 SSL_CTX_flush_sessions(s
->ctx
,time(NULL
));
1497 SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
1502 int SSL_set_ssl_method(SSL
*s
,SSL_METHOD
*meth
)
1507 if (s
->method
!= meth
)
1509 if (s
->handshake_func
!= NULL
)
1510 conn
=(s
->handshake_func
== s
->method
->ssl_connect
);
1512 if (s
->method
->version
== meth
->version
)
1516 s
->method
->ssl_free(s
);
1518 ret
=s
->method
->ssl_new(s
);
1522 s
->handshake_func
=meth
->ssl_connect
;
1524 s
->handshake_func
=meth
->ssl_accept
;
1529 int SSL_get_error(SSL
*s
,int i
)
1535 if (i
> 0) return(SSL_ERROR_NONE
);
1537 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1538 * etc, where we do encode the error */
1539 if ((l
=ERR_peek_error()) != 0)
1541 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
1542 return(SSL_ERROR_SYSCALL
);
1544 return(SSL_ERROR_SSL
);
1547 if ((i
< 0) && SSL_want_read(s
))
1549 bio
=SSL_get_rbio(s
);
1550 if (BIO_should_read(bio
))
1551 return(SSL_ERROR_WANT_READ
);
1552 else if (BIO_should_write(bio
))
1553 /* This one doesn't make too much sense ... We never try
1554 * to write to the rbio, and an application program where
1555 * rbio and wbio are separate couldn't even know what it
1557 * However if we ever set s->rwstate incorrectly
1558 * (so that we have SSL_want_read(s) instead of
1559 * SSL_want_write(s)) and rbio and wbio *are* the same,
1560 * this test works around that bug; so it might be safer
1562 return(SSL_ERROR_WANT_WRITE
);
1563 else if (BIO_should_io_special(bio
))
1565 reason
=BIO_get_retry_reason(bio
);
1566 if (reason
== BIO_RR_CONNECT
)
1567 return(SSL_ERROR_WANT_CONNECT
);
1569 return(SSL_ERROR_SYSCALL
); /* unknown */
1573 if ((i
< 0) && SSL_want_write(s
))
1575 bio
=SSL_get_wbio(s
);
1576 if (BIO_should_write(bio
))
1577 return(SSL_ERROR_WANT_WRITE
);
1578 else if (BIO_should_read(bio
))
1579 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1580 return(SSL_ERROR_WANT_READ
);
1581 else if (BIO_should_io_special(bio
))
1583 reason
=BIO_get_retry_reason(bio
);
1584 if (reason
== BIO_RR_CONNECT
)
1585 return(SSL_ERROR_WANT_CONNECT
);
1587 return(SSL_ERROR_SYSCALL
);
1590 if ((i
< 0) && SSL_want_x509_lookup(s
))
1592 return(SSL_ERROR_WANT_X509_LOOKUP
);
1597 if (s
->version
== SSL2_VERSION
)
1599 /* assume it is the socket being closed */
1600 return(SSL_ERROR_ZERO_RETURN
);
1604 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
1605 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
1606 return(SSL_ERROR_ZERO_RETURN
);
1609 return(SSL_ERROR_SYSCALL
);
1612 int SSL_do_handshake(SSL
*s
)
1616 if (s
->handshake_func
== NULL
)
1618 SSLerr(SSL_F_SSL_DO_HANDSHAKE
,SSL_R_CONNECTION_TYPE_NOT_SET
);
1622 s
->method
->ssl_renegotiate_check(s
);
1624 if (SSL_in_init(s
) || SSL_in_before(s
))
1626 ret
=s
->handshake_func(s
);
1631 /* For the next 2 functions, SSL_clear() sets shutdown and so
1632 * one of these calls will reset it */
1633 void SSL_set_accept_state(SSL
*s
)
1637 s
->state
=SSL_ST_ACCEPT
|SSL_ST_BEFORE
;
1638 s
->handshake_func
=s
->method
->ssl_accept
;
1639 /* clear the current cipher */
1640 ssl_clear_cipher_ctx(s
);
1643 void SSL_set_connect_state(SSL
*s
)
1647 s
->state
=SSL_ST_CONNECT
|SSL_ST_BEFORE
;
1648 s
->handshake_func
=s
->method
->ssl_connect
;
1649 /* clear the current cipher */
1650 ssl_clear_cipher_ctx(s
);
1653 int ssl_undefined_function(SSL
*s
)
1655 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1659 SSL_METHOD
*ssl_bad_method(int ver
)
1661 SSLerr(SSL_F_SSL_BAD_METHOD
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1665 const char *SSL_get_version(SSL
*s
)
1667 if (s
->version
== TLS1_VERSION
)
1669 else if (s
->version
== SSL3_VERSION
)
1671 else if (s
->version
== SSL2_VERSION
)
1677 SSL
*SSL_dup(SSL
*s
)
1679 STACK_OF(X509_NAME
) *sk
;
1684 if ((ret
=SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
1687 if (s
->session
!= NULL
)
1689 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1690 SSL_copy_session_id(ret
,s
);
1694 /* No session has been established yet, so we have to expect
1695 * that s->cert or ret->cert will be changed later --
1696 * they should not both point to the same object,
1697 * and thus we can't use SSL_copy_session_id. */
1699 ret
->method
= s
->method
;
1700 ret
->method
->ssl_new(ret
);
1702 if (s
->cert
!= NULL
)
1704 if (ret
->cert
!= NULL
)
1706 ssl_cert_free(ret
->cert
);
1708 ret
->cert
= ssl_cert_dup(s
->cert
);
1709 if (ret
->cert
== NULL
)
1713 SSL_set_session_id_context(ret
,
1714 s
->sid_ctx
, s
->sid_ctx_length
);
1717 SSL_set_read_ahead(ret
,SSL_get_read_ahead(s
));
1718 SSL_set_verify(ret
,SSL_get_verify_mode(s
),
1719 SSL_get_verify_callback(s
));
1720 SSL_set_verify_depth(ret
,SSL_get_verify_depth(s
));
1722 SSL_set_info_callback(ret
,SSL_get_info_callback(s
));
1724 ret
->debug
=s
->debug
;
1725 ret
->options
=s
->options
;
1727 /* copy app data, a little dangerous perhaps */
1728 if (!CRYPTO_dup_ex_data(ssl_meth
,&ret
->ex_data
,&s
->ex_data
))
1731 /* setup rbio, and wbio */
1732 if (s
->rbio
!= NULL
)
1734 if (!BIO_dup_state(s
->rbio
,(char *)&ret
->rbio
))
1737 if (s
->wbio
!= NULL
)
1739 if (s
->wbio
!= s
->rbio
)
1741 if (!BIO_dup_state(s
->wbio
,(char *)&ret
->wbio
))
1745 ret
->wbio
=ret
->rbio
;
1748 /* dup the cipher_list and cipher_list_by_id stacks */
1749 if (s
->cipher_list
!= NULL
)
1751 if ((ret
->cipher_list
=sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
1754 if (s
->cipher_list_by_id
!= NULL
)
1755 if ((ret
->cipher_list_by_id
=sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
1759 /* Dup the client_CA list */
1760 if (s
->client_CA
!= NULL
)
1762 if ((sk
=sk_X509_NAME_dup(s
->client_CA
)) == NULL
) goto err
;
1764 for (i
=0; i
<sk_X509_NAME_num(sk
); i
++)
1766 xn
=sk_X509_NAME_value(sk
,i
);
1767 if (sk_X509_NAME_set(sk
,i
,X509_NAME_dup(xn
)) == NULL
)
1775 ret
->shutdown
=s
->shutdown
;
1776 ret
->state
=s
->state
;
1777 ret
->handshake_func
=s
->handshake_func
;
1778 ret
->server
=s
->server
;
1783 if (ret
!= NULL
) SSL_free(ret
);
1789 void ssl_clear_cipher_ctx(SSL
*s
)
1791 if (s
->enc_read_ctx
!= NULL
)
1793 EVP_CIPHER_CTX_cleanup(s
->enc_read_ctx
);
1794 OPENSSL_free(s
->enc_read_ctx
);
1795 s
->enc_read_ctx
=NULL
;
1797 if (s
->enc_write_ctx
!= NULL
)
1799 EVP_CIPHER_CTX_cleanup(s
->enc_write_ctx
);
1800 OPENSSL_free(s
->enc_write_ctx
);
1801 s
->enc_write_ctx
=NULL
;
1803 if (s
->expand
!= NULL
)
1805 COMP_CTX_free(s
->expand
);
1808 if (s
->compress
!= NULL
)
1810 COMP_CTX_free(s
->compress
);
1815 /* Fix this function so that it takes an optional type parameter */
1816 X509
*SSL_get_certificate(SSL
*s
)
1818 if (s
->cert
!= NULL
)
1819 return(s
->cert
->key
->x509
);
1824 /* Fix this function so that it takes an optional type parameter */
1825 EVP_PKEY
*SSL_get_privatekey(SSL
*s
)
1827 if (s
->cert
!= NULL
)
1828 return(s
->cert
->key
->privatekey
);
1833 SSL_CIPHER
*SSL_get_current_cipher(SSL
*s
)
1835 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
1836 return(s
->session
->cipher
);
1840 int ssl_init_wbio_buffer(SSL
*s
,int push
)
1844 if (s
->bbio
== NULL
)
1846 bbio
=BIO_new(BIO_f_buffer());
1847 if (bbio
== NULL
) return(0);
1853 if (s
->bbio
== s
->wbio
)
1854 s
->wbio
=BIO_pop(s
->wbio
);
1856 (void)BIO_reset(bbio
);
1857 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
1858 if (!BIO_set_read_buffer_size(bbio
,1))
1860 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
,ERR_R_BUF_LIB
);
1865 if (s
->wbio
!= bbio
)
1866 s
->wbio
=BIO_push(bbio
,s
->wbio
);
1870 if (s
->wbio
== bbio
)
1871 s
->wbio
=BIO_pop(bbio
);
1876 void ssl_free_wbio_buffer(SSL
*s
)
1878 if (s
->bbio
== NULL
) return;
1880 if (s
->bbio
== s
->wbio
)
1882 /* remove buffering */
1883 s
->wbio
=BIO_pop(s
->wbio
);
1884 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
1885 assert(s
->wbio
!= NULL
);
1892 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
,int mode
)
1894 ctx
->quiet_shutdown
=mode
;
1897 int SSL_CTX_get_quiet_shutdown(SSL_CTX
*ctx
)
1899 return(ctx
->quiet_shutdown
);
1902 void SSL_set_quiet_shutdown(SSL
*s
,int mode
)
1904 s
->quiet_shutdown
=mode
;
1907 int SSL_get_quiet_shutdown(SSL
*s
)
1909 return(s
->quiet_shutdown
);
1912 void SSL_set_shutdown(SSL
*s
,int mode
)
1917 int SSL_get_shutdown(SSL
*s
)
1919 return(s
->shutdown
);
1922 int SSL_version(SSL
*s
)
1927 SSL_CTX
*SSL_get_SSL_CTX(SSL
*ssl
)
1933 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
1935 return(X509_STORE_set_default_paths(ctx
->cert_store
));
1938 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
1941 return(X509_STORE_load_locations(ctx
->cert_store
,CAfile
,CApath
));
1945 void SSL_set_info_callback(SSL
*ssl
,void (*cb
)())
1947 ssl
->info_callback
=cb
;
1950 void (*SSL_get_info_callback(SSL
*ssl
))(void)
1952 return((void (*)())ssl
->info_callback
);
1955 int SSL_state(SSL
*ssl
)
1960 void SSL_set_verify_result(SSL
*ssl
,long arg
)
1962 ssl
->verify_result
=arg
;
1965 long SSL_get_verify_result(SSL
*ssl
)
1967 return(ssl
->verify_result
);
1970 int SSL_get_ex_new_index(long argl
,void *argp
,CRYPTO_EX_new
*new_func
,
1971 CRYPTO_EX_dup
*dup_func
,CRYPTO_EX_free
*free_func
)
1974 return(CRYPTO_get_ex_new_index(ssl_meth_num
-1,
1975 &ssl_meth
,argl
,argp
,new_func
,dup_func
,free_func
));
1978 int SSL_set_ex_data(SSL
*s
,int idx
,void *arg
)
1980 return(CRYPTO_set_ex_data(&s
->ex_data
,idx
,arg
));
1983 void *SSL_get_ex_data(SSL
*s
,int idx
)
1985 return(CRYPTO_get_ex_data(&s
->ex_data
,idx
));
1988 int SSL_CTX_get_ex_new_index(long argl
,void *argp
,CRYPTO_EX_new
*new_func
,
1989 CRYPTO_EX_dup
*dup_func
,CRYPTO_EX_free
*free_func
)
1992 return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num
-1,
1993 &ssl_ctx_meth
,argl
,argp
,new_func
,dup_func
,free_func
));
1996 int SSL_CTX_set_ex_data(SSL_CTX
*s
,int idx
,void *arg
)
1998 return(CRYPTO_set_ex_data(&s
->ex_data
,idx
,arg
));
2001 void *SSL_CTX_get_ex_data(SSL_CTX
*s
,int idx
)
2003 return(CRYPTO_get_ex_data(&s
->ex_data
,idx
));
2011 X509_STORE
*SSL_CTX_get_cert_store(SSL_CTX
*ctx
)
2013 return(ctx
->cert_store
);
2016 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
,X509_STORE
*store
)
2018 if (ctx
->cert_store
!= NULL
)
2019 X509_STORE_free(ctx
->cert_store
);
2020 ctx
->cert_store
=store
;
2023 int SSL_want(SSL
*s
)
2029 * \brief Set the callback for generating temporary RSA keys.
2030 * \param ctx the SSL context.
2031 * \param cb the callback
2035 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX
*ctx
,RSA
*(*cb
)(SSL
*ssl
,
2039 SSL_CTX_callback_ctrl(ctx
,SSL_CTRL_SET_TMP_RSA_CB
,(void (*)())cb
);
2042 void SSL_set_tmp_rsa_callback(SSL
*ssl
,RSA
*(*cb
)(SSL
*ssl
,
2046 SSL_callback_ctrl(ssl
,SSL_CTRL_SET_TMP_RSA_CB
,(void (*)())cb
);
2052 * \brief The RSA temporary key callback function.
2053 * \param ssl the SSL session.
2054 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2055 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2056 * of the required key in bits.
2057 * \return the temporary RSA key.
2058 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2061 RSA
*cb(SSL
*ssl
,int is_export
,int keylength
)
2066 * \brief Set the callback for generating temporary DH keys.
2067 * \param ctx the SSL context.
2068 * \param dh the callback
2072 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,DH
*(*dh
)(SSL
*ssl
,int is_export
,
2075 SSL_CTX_callback_ctrl(ctx
,SSL_CTRL_SET_TMP_DH_CB
,(void (*)())dh
);
2078 void SSL_set_tmp_dh_callback(SSL
*ssl
,DH
*(*dh
)(SSL
*ssl
,int is_export
,
2081 SSL_callback_ctrl(ssl
,SSL_CTRL_SET_TMP_DH_CB
,(void (*)())dh
);
2085 #if defined(_WINDLL) && defined(WIN16)
2086 #include "../crypto/bio/bss_file.c"
2089 IMPLEMENT_STACK_OF(SSL_CIPHER
)
2090 IMPLEMENT_STACK_OF(SSL_COMP
)