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.]
62 #include <openssl/objects.h>
63 #include <openssl/lhash.h>
64 #include <openssl/x509v3.h>
67 const char *SSL_version_str
=OPENSSL_VERSION_TEXT
;
69 static STACK_OF(CRYPTO_EX_DATA_FUNCS
) *ssl_meth
=NULL
;
70 static STACK_OF(CRYPTO_EX_DATA_FUNCS
) *ssl_ctx_meth
=NULL
;
71 static int ssl_meth_num
=0;
72 static int ssl_ctx_meth_num
=0;
74 OPENSSL_GLOBAL SSL3_ENC_METHOD ssl3_undef_enc_method
={
75 /* evil casts, but these functions are only called if there's a library bug */
76 (int (*)(SSL
*,int))ssl_undefined_function
,
77 (int (*)(SSL
*, unsigned char *, int))ssl_undefined_function
,
78 ssl_undefined_function
,
79 (int (*)(SSL
*, unsigned char *, unsigned char *, int))ssl_undefined_function
,
80 (int (*)(SSL
*, int))ssl_undefined_function
,
81 (int (*)(SSL
*, EVP_MD_CTX
*, EVP_MD_CTX
*, const char*, int, unsigned char *))ssl_undefined_function
85 union rsa_fn_to_char_u
88 RSA
*(*fn_p
)(SSL
*, int, int);
95 DH
*(*fn_p
)(SSL
*, int, int);
102 if (s
->method
== NULL
)
104 SSLerr(SSL_F_SSL_CLEAR
,SSL_R_NO_METHOD_SPECIFIED
);
112 #if 0 /* Disabled since version 1.10 of this file (early return not
113 * needed because SSL_clear is not called when doing renegotiation) */
114 /* This is set if we are doing dynamic renegotiation so keep
115 * the old cipher. It is sort of a SSL_clear_lite :-) */
116 if (s
->new_session
) return(1);
120 SSLerr(SSL_F_SSL_CLEAR
,SSL_R_INTERNAL_ERROR
);
125 state
=s
->state
; /* Keep to check if we throw away the session-id */
128 s
->state
=SSL_ST_BEFORE
|((s
->server
)?SSL_ST_ACCEPT
:SSL_ST_CONNECT
);
130 s
->version
=s
->method
->version
;
131 s
->client_version
=s
->version
;
132 s
->rwstate
=SSL_NOTHING
;
133 s
->rstate
=SSL_ST_READ_HEADER
;
134 s
->read_ahead
=s
->ctx
->read_ahead
;
136 if (s
->init_buf
!= NULL
)
138 BUF_MEM_free(s
->init_buf
);
142 ssl_clear_cipher_ctx(s
);
144 if (ssl_clear_bad_session(s
))
146 SSL_SESSION_free(s
->session
);
153 /* Check to see if we were changed into a different method, if
154 * so, revert back if we are not doing session-id reuse. */
155 if ((s
->session
== NULL
) && (s
->method
!= s
->ctx
->method
))
157 s
->method
->ssl_free(s
);
158 s
->method
=s
->ctx
->method
;
159 if (!s
->method
->ssl_new(s
))
164 s
->method
->ssl_clear(s
);
168 /** Used to change an SSL_CTXs default SSL method type */
169 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
,SSL_METHOD
*meth
)
171 STACK_OF(SSL_CIPHER
) *sk
;
175 sk
=ssl_create_cipher_list(ctx
->method
,&(ctx
->cipher_list
),
176 &(ctx
->cipher_list_by_id
),SSL_DEFAULT_CIPHER_LIST
);
177 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0))
179 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
185 SSL
*SSL_new(SSL_CTX
*ctx
)
191 SSLerr(SSL_F_SSL_NEW
,SSL_R_NULL_SSL_CTX
);
194 if (ctx
->method
== NULL
)
196 SSLerr(SSL_F_SSL_NEW
,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
200 s
=(SSL
*)Malloc(sizeof(SSL
));
201 if (s
== NULL
) goto err
;
202 memset(s
,0,sizeof(SSL
));
204 if (ctx
->cert
!= NULL
)
206 /* Earlier library versions used to copy the pointer to
207 * the CERT, not its contents; only when setting new
208 * parameters for the per-SSL copy, ssl_cert_new would be
209 * called (and the direct reference to the per-SSL_CTX
210 * settings would be lost, but those still were indirectly
211 * accessed for various purposes, and for that reason they
212 * used to be known as s->ctx->default_cert).
213 * Now we don't look at the SSL_CTX's CERT after having
214 * duplicated it once. */
216 s
->cert
= ssl_cert_dup(ctx
->cert
);
221 s
->cert
=NULL
; /* Cannot really happen (see SSL_CTX_new) */
222 s
->sid_ctx_length
=ctx
->sid_ctx_length
;
223 memcpy(&s
->sid_ctx
,&ctx
->sid_ctx
,sizeof(s
->sid_ctx
));
224 s
->verify_mode
=ctx
->verify_mode
;
225 s
->verify_depth
=ctx
->verify_depth
;
226 s
->verify_callback
=ctx
->default_verify_callback
;
227 s
->purpose
= ctx
->purpose
;
228 s
->trust
= ctx
->trust
;
229 CRYPTO_add(&ctx
->references
,1,CRYPTO_LOCK_SSL_CTX
);
232 s
->verify_result
=X509_V_OK
;
234 s
->method
=ctx
->method
;
236 if (!s
->method
->ssl_new(s
))
239 s
->quiet_shutdown
=ctx
->quiet_shutdown
;
241 s
->server
=(ctx
->method
->ssl_accept
== ssl_undefined_function
)?0:1;
242 s
->options
=ctx
->options
;
246 CRYPTO_new_ex_data(ssl_meth
,s
,&s
->ex_data
);
253 ssl_cert_free(s
->cert
);
255 SSL_CTX_free(s
->ctx
); /* decrement reference count */
258 SSLerr(SSL_F_SSL_NEW
,ERR_R_MALLOC_FAILURE
);
262 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
,const unsigned char *sid_ctx
,
263 unsigned int sid_ctx_len
)
265 if(sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
)
267 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
270 ctx
->sid_ctx_length
=sid_ctx_len
;
271 memcpy(ctx
->sid_ctx
,sid_ctx
,sid_ctx_len
);
276 int SSL_set_session_id_context(SSL
*ssl
,const unsigned char *sid_ctx
,
277 unsigned int sid_ctx_len
)
279 if(sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
)
281 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
284 ssl
->sid_ctx_length
=sid_ctx_len
;
285 memcpy(ssl
->sid_ctx
,sid_ctx
,sid_ctx_len
);
290 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
292 if(X509_PURPOSE_get_by_id(purpose
) == -1) {
293 SSLerr(SSL_F_SSL_CTX_SET_PURPOSE
, SSL_R_INVALID_PURPOSE
);
296 s
->purpose
= purpose
;
300 int SSL_set_purpose(SSL
*s
, int purpose
)
302 if(X509_PURPOSE_get_by_id(purpose
) == -1) {
303 SSLerr(SSL_F_SSL_SET_PURPOSE
, SSL_R_INVALID_PURPOSE
);
306 s
->purpose
= purpose
;
310 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
312 if(X509_TRUST_get_by_id(trust
) == -1) {
313 SSLerr(SSL_F_SSL_CTX_SET_TRUST
, SSL_R_INVALID_TRUST
);
320 int SSL_set_trust(SSL
*s
, int trust
)
322 if(X509_TRUST_get_by_id(trust
) == -1) {
323 SSLerr(SSL_F_SSL_SET_TRUST
, SSL_R_INVALID_TRUST
);
330 void SSL_free(SSL
*s
)
337 i
=CRYPTO_add(&s
->references
,-1,CRYPTO_LOCK_SSL
);
345 fprintf(stderr
,"SSL_free, bad reference count\n");
350 CRYPTO_free_ex_data(ssl_meth
,(char *)s
,&s
->ex_data
);
354 /* If the buffering BIO is in place, pop it off */
355 if (s
->bbio
== s
->wbio
)
357 s
->wbio
=BIO_pop(s
->wbio
);
363 BIO_free_all(s
->rbio
);
364 if ((s
->wbio
!= NULL
) && (s
->wbio
!= s
->rbio
))
365 BIO_free_all(s
->wbio
);
367 if (s
->init_buf
!= NULL
) BUF_MEM_free(s
->init_buf
);
369 /* add extra stuff */
370 if (s
->cipher_list
!= NULL
) sk_SSL_CIPHER_free(s
->cipher_list
);
371 if (s
->cipher_list_by_id
!= NULL
) sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
373 /* Make the next call work :-) */
374 if (s
->session
!= NULL
)
376 ssl_clear_bad_session(s
);
377 SSL_SESSION_free(s
->session
);
380 ssl_clear_cipher_ctx(s
);
382 if (s
->cert
!= NULL
) ssl_cert_free(s
->cert
);
383 /* Free up if allocated */
385 if (s
->ctx
) SSL_CTX_free(s
->ctx
);
387 if (s
->client_CA
!= NULL
)
388 sk_X509_NAME_pop_free(s
->client_CA
,X509_NAME_free
);
390 if (s
->method
!= NULL
) s
->method
->ssl_free(s
);
395 void SSL_set_bio(SSL
*s
,BIO
*rbio
,BIO
*wbio
)
397 /* If the output buffering BIO is still in place, remove it
401 if (s
->wbio
== s
->bbio
)
403 s
->wbio
=s
->wbio
->next_bio
;
404 s
->bbio
->next_bio
=NULL
;
407 if ((s
->rbio
!= NULL
) && (s
->rbio
!= rbio
))
408 BIO_free_all(s
->rbio
);
409 if ((s
->wbio
!= NULL
) && (s
->wbio
!= wbio
) && (s
->rbio
!= s
->wbio
))
410 BIO_free_all(s
->wbio
);
415 BIO
*SSL_get_rbio(SSL
*s
)
418 BIO
*SSL_get_wbio(SSL
*s
)
421 int SSL_get_fd(SSL
*s
)
427 r
=BIO_find_type(b
,BIO_TYPE_DESCRIPTOR
);
434 int SSL_set_fd(SSL
*s
,int fd
)
439 bio
=BIO_new(BIO_s_socket());
443 SSLerr(SSL_F_SSL_SET_FD
,ERR_R_BUF_LIB
);
446 BIO_set_fd(bio
,fd
,BIO_NOCLOSE
);
447 SSL_set_bio(s
,bio
,bio
);
453 int SSL_set_wfd(SSL
*s
,int fd
)
458 if ((s
->rbio
== NULL
) || (BIO_method_type(s
->rbio
) != BIO_TYPE_SOCKET
)
459 || ((int)BIO_get_fd(s
->rbio
,NULL
) != fd
))
461 bio
=BIO_new(BIO_s_socket());
464 { SSLerr(SSL_F_SSL_SET_WFD
,ERR_R_BUF_LIB
); goto err
; }
465 BIO_set_fd(bio
,fd
,BIO_NOCLOSE
);
466 SSL_set_bio(s
,SSL_get_rbio(s
),bio
);
469 SSL_set_bio(s
,SSL_get_rbio(s
),SSL_get_rbio(s
));
475 int SSL_set_rfd(SSL
*s
,int fd
)
480 if ((s
->wbio
== NULL
) || (BIO_method_type(s
->wbio
) != BIO_TYPE_SOCKET
)
481 || ((int)BIO_get_fd(s
->wbio
,NULL
) != fd
))
483 bio
=BIO_new(BIO_s_socket());
487 SSLerr(SSL_F_SSL_SET_RFD
,ERR_R_BUF_LIB
);
490 BIO_set_fd(bio
,fd
,BIO_NOCLOSE
);
491 SSL_set_bio(s
,bio
,SSL_get_wbio(s
));
494 SSL_set_bio(s
,SSL_get_wbio(s
),SSL_get_wbio(s
));
502 /* return length of latest Finished message we sent, copy to 'buf' */
503 size_t SSL_get_finished(SSL
*s
, void *buf
, size_t count
)
509 ret
= s
->s3
->tmp
.finish_md_len
;
512 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
517 /* return length of latest Finished message we expected, copy to 'buf' */
518 size_t SSL_get_peer_finished(SSL
*s
, void *buf
, size_t count
)
524 ret
= s
->s3
->tmp
.peer_finish_md_len
;
527 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
533 int SSL_get_verify_mode(SSL
*s
)
535 return(s
->verify_mode
);
538 int SSL_get_verify_depth(SSL
*s
)
540 return(s
->verify_depth
);
543 int (*SSL_get_verify_callback(SSL
*s
))(int,X509_STORE_CTX
*)
545 return(s
->verify_callback
);
548 int SSL_CTX_get_verify_mode(SSL_CTX
*ctx
)
550 return(ctx
->verify_mode
);
553 int SSL_CTX_get_verify_depth(SSL_CTX
*ctx
)
555 return(ctx
->verify_depth
);
558 int (*SSL_CTX_get_verify_callback(SSL_CTX
*ctx
))(int,X509_STORE_CTX
*)
560 return(ctx
->default_verify_callback
);
563 void SSL_set_verify(SSL
*s
,int mode
,
564 int (*callback
)(int ok
,X509_STORE_CTX
*ctx
))
567 if (callback
!= NULL
)
568 s
->verify_callback
=callback
;
571 void SSL_set_verify_depth(SSL
*s
,int depth
)
573 s
->verify_depth
=depth
;
576 void SSL_set_read_ahead(SSL
*s
,int yes
)
581 int SSL_get_read_ahead(SSL
*s
)
583 return(s
->read_ahead
);
586 int SSL_pending(SSL
*s
)
588 return(s
->method
->ssl_pending(s
));
591 X509
*SSL_get_peer_certificate(SSL
*s
)
595 if ((s
== NULL
) || (s
->session
== NULL
))
600 if (r
== NULL
) return(r
);
602 CRYPTO_add(&r
->references
,1,CRYPTO_LOCK_X509
);
607 STACK_OF(X509
) *SSL_get_peer_cert_chain(SSL
*s
)
611 if ((s
== NULL
) || (s
->session
== NULL
) || (s
->session
->sess_cert
== NULL
))
614 r
=s
->session
->sess_cert
->cert_chain
;
619 /* Now in theory, since the calling process own 't' it should be safe to
620 * modify. We need to be able to read f without being hassled */
621 void SSL_copy_session_id(SSL
*t
,SSL
*f
)
625 /* Do we need to to SSL locking? */
626 SSL_set_session(t
,SSL_get_session(f
));
628 /* what if we are setup as SSLv2 but want to talk SSLv3 or
630 if (t
->method
!= f
->method
)
632 t
->method
->ssl_free(t
); /* cleanup current */
633 t
->method
=f
->method
; /* change method */
634 t
->method
->ssl_new(t
); /* setup new */
640 CRYPTO_add(&f
->cert
->references
,1,CRYPTO_LOCK_SSL_CERT
);
645 if (tmp
!= NULL
) ssl_cert_free(tmp
);
646 SSL_set_session_id_context(t
,f
->sid_ctx
,f
->sid_ctx_length
);
649 /* Fix this so it checks all the valid key/cert options */
650 int SSL_CTX_check_private_key(SSL_CTX
*ctx
)
652 if ( (ctx
== NULL
) ||
653 (ctx
->cert
== NULL
) ||
654 (ctx
->cert
->key
->x509
== NULL
))
656 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,SSL_R_NO_CERTIFICATE_ASSIGNED
);
659 if (ctx
->cert
->key
->privatekey
== NULL
)
661 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
664 return(X509_check_private_key(ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
));
667 /* Fix this function so that it takes an optional type parameter */
668 int SSL_check_private_key(SSL
*ssl
)
672 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,ERR_R_PASSED_NULL_PARAMETER
);
675 if (ssl
->cert
== NULL
)
677 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,SSL_R_NO_CERTIFICATE_ASSIGNED
);
680 if (ssl
->cert
->key
->x509
== NULL
)
682 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,SSL_R_NO_CERTIFICATE_ASSIGNED
);
685 if (ssl
->cert
->key
->privatekey
== NULL
)
687 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
690 return(X509_check_private_key(ssl
->cert
->key
->x509
,
691 ssl
->cert
->key
->privatekey
));
694 int SSL_accept(SSL
*s
)
696 if (s
->handshake_func
== 0)
697 /* Not properly initialized yet */
698 SSL_set_accept_state(s
);
700 return(s
->method
->ssl_accept(s
));
703 int SSL_connect(SSL
*s
)
705 if (s
->handshake_func
== 0)
706 /* Not properly initialized yet */
707 SSL_set_connect_state(s
);
709 return(s
->method
->ssl_connect(s
));
712 long SSL_get_default_timeout(SSL
*s
)
714 return(s
->method
->get_timeout());
717 int SSL_read(SSL
*s
,char *buf
,int num
)
719 if (s
->handshake_func
== 0)
721 SSLerr(SSL_F_SSL_READ
, SSL_R_UNINITIALIZED
);
725 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
)
727 s
->rwstate
=SSL_NOTHING
;
730 return(s
->method
->ssl_read(s
,buf
,num
));
733 int SSL_peek(SSL
*s
,char *buf
,int num
)
735 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
)
739 return(s
->method
->ssl_peek(s
,buf
,num
));
742 int SSL_write(SSL
*s
,const char *buf
,int num
)
744 if (s
->handshake_func
== 0)
746 SSLerr(SSL_F_SSL_WRITE
, SSL_R_UNINITIALIZED
);
750 if (s
->shutdown
& SSL_SENT_SHUTDOWN
)
752 s
->rwstate
=SSL_NOTHING
;
753 SSLerr(SSL_F_SSL_WRITE
,SSL_R_PROTOCOL_IS_SHUTDOWN
);
756 return(s
->method
->ssl_write(s
,buf
,num
));
759 int SSL_shutdown(SSL
*s
)
761 /* Note that this function behaves differently from what one might
762 * expect. Return values are 0 for no success (yet),
763 * 1 for success; but calling it once is usually not enough,
764 * even if blocking I/O is used (see ssl3_shutdown).
767 if (s
->handshake_func
== 0)
769 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
773 if ((s
!= NULL
) && !SSL_in_init(s
))
774 return(s
->method
->ssl_shutdown(s
));
779 int SSL_renegotiate(SSL
*s
)
782 return(s
->method
->ssl_renegotiate(s
));
785 long SSL_ctrl(SSL
*s
,int cmd
,long larg
,char *parg
)
791 case SSL_CTRL_GET_READ_AHEAD
:
792 return(s
->read_ahead
);
793 case SSL_CTRL_SET_READ_AHEAD
:
797 case SSL_CTRL_OPTIONS
:
798 return(s
->options
|=larg
);
800 return(s
->mode
|=larg
);
802 return(s
->method
->ssl_ctrl(s
,cmd
,larg
,parg
));
806 long SSL_callback_ctrl(SSL
*s
, int cmd
, void (*fp
)())
811 return(s
->method
->ssl_callback_ctrl(s
,cmd
,fp
));
815 long SSL_CTX_ctrl(SSL_CTX
*ctx
,int cmd
,long larg
,char *parg
)
821 case SSL_CTRL_GET_READ_AHEAD
:
822 return(ctx
->read_ahead
);
823 case SSL_CTRL_SET_READ_AHEAD
:
825 ctx
->read_ahead
=larg
;
828 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
829 l
=ctx
->session_cache_size
;
830 ctx
->session_cache_size
=larg
;
832 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
833 return(ctx
->session_cache_size
);
834 case SSL_CTRL_SET_SESS_CACHE_MODE
:
835 l
=ctx
->session_cache_mode
;
836 ctx
->session_cache_mode
=larg
;
838 case SSL_CTRL_GET_SESS_CACHE_MODE
:
839 return(ctx
->session_cache_mode
);
841 case SSL_CTRL_SESS_NUMBER
:
842 return(ctx
->sessions
->num_items
);
843 case SSL_CTRL_SESS_CONNECT
:
844 return(ctx
->stats
.sess_connect
);
845 case SSL_CTRL_SESS_CONNECT_GOOD
:
846 return(ctx
->stats
.sess_connect_good
);
847 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
848 return(ctx
->stats
.sess_connect_renegotiate
);
849 case SSL_CTRL_SESS_ACCEPT
:
850 return(ctx
->stats
.sess_accept
);
851 case SSL_CTRL_SESS_ACCEPT_GOOD
:
852 return(ctx
->stats
.sess_accept_good
);
853 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
854 return(ctx
->stats
.sess_accept_renegotiate
);
855 case SSL_CTRL_SESS_HIT
:
856 return(ctx
->stats
.sess_hit
);
857 case SSL_CTRL_SESS_CB_HIT
:
858 return(ctx
->stats
.sess_cb_hit
);
859 case SSL_CTRL_SESS_MISSES
:
860 return(ctx
->stats
.sess_miss
);
861 case SSL_CTRL_SESS_TIMEOUTS
:
862 return(ctx
->stats
.sess_timeout
);
863 case SSL_CTRL_SESS_CACHE_FULL
:
864 return(ctx
->stats
.sess_cache_full
);
865 case SSL_CTRL_OPTIONS
:
866 return(ctx
->options
|=larg
);
868 return(ctx
->mode
|=larg
);
870 return(ctx
->method
->ssl_ctx_ctrl(ctx
,cmd
,larg
,parg
));
874 long SSL_CTX_callback_ctrl(SSL_CTX
*ctx
, int cmd
, void (*fp
)())
879 return(ctx
->method
->ssl_ctx_callback_ctrl(ctx
,cmd
,fp
));
883 int ssl_cipher_id_cmp(SSL_CIPHER
*a
,SSL_CIPHER
*b
)
891 return((l
> 0)?1:-1);
894 int ssl_cipher_ptr_id_cmp(SSL_CIPHER
**ap
,SSL_CIPHER
**bp
)
898 l
=(*ap
)->id
-(*bp
)->id
;
902 return((l
> 0)?1:-1);
905 /** return a STACK of the ciphers available for the SSL and in order of
907 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(SSL
*s
)
909 if ((s
!= NULL
) && (s
->cipher_list
!= NULL
))
911 return(s
->cipher_list
);
913 else if ((s
->ctx
!= NULL
) &&
914 (s
->ctx
->cipher_list
!= NULL
))
916 return(s
->ctx
->cipher_list
);
921 /** return a STACK of the ciphers available for the SSL and in order of
923 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
925 if ((s
!= NULL
) && (s
->cipher_list_by_id
!= NULL
))
927 return(s
->cipher_list_by_id
);
929 else if ((s
!= NULL
) && (s
->ctx
!= NULL
) &&
930 (s
->ctx
->cipher_list_by_id
!= NULL
))
932 return(s
->ctx
->cipher_list_by_id
);
937 /** The old interface to get the same thing as SSL_get_ciphers() */
938 const char *SSL_get_cipher_list(SSL
*s
,int n
)
941 STACK_OF(SSL_CIPHER
) *sk
;
943 if (s
== NULL
) return(NULL
);
944 sk
=SSL_get_ciphers(s
);
945 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
947 c
=sk_SSL_CIPHER_value(sk
,n
);
948 if (c
== NULL
) return(NULL
);
952 /** specify the ciphers to be used by default by the SSL_CTX */
953 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
955 STACK_OF(SSL_CIPHER
) *sk
;
957 sk
=ssl_create_cipher_list(ctx
->method
,&ctx
->cipher_list
,
958 &ctx
->cipher_list_by_id
,str
);
960 return((sk
== NULL
)?0:1);
963 /** specify the ciphers to be used by the SSL */
964 int SSL_set_cipher_list(SSL
*s
,const char *str
)
966 STACK_OF(SSL_CIPHER
) *sk
;
968 sk
=ssl_create_cipher_list(s
->ctx
->method
,&s
->cipher_list
,
969 &s
->cipher_list_by_id
,str
);
971 return((sk
== NULL
)?0:1);
974 /* works well for SSLv2, not so good for SSLv3 */
975 char *SSL_get_shared_ciphers(SSL
*s
,char *buf
,int len
)
979 STACK_OF(SSL_CIPHER
) *sk
;
983 if ((s
->session
== NULL
) || (s
->session
->ciphers
== NULL
) ||
988 sk
=s
->session
->ciphers
;
989 for (i
=0; i
<sk_SSL_CIPHER_num(sk
); i
++)
991 /* Decrement for either the ':' or a '\0' */
993 c
=sk_SSL_CIPHER_value(sk
,i
);
994 for (cp
=c
->name
; *cp
; )
1010 int ssl_cipher_list_to_bytes(SSL
*s
,STACK_OF(SSL_CIPHER
) *sk
,unsigned char *p
)
1016 if (sk
== NULL
) return(0);
1019 for (i
=0; i
<sk_SSL_CIPHER_num(sk
); i
++)
1021 c
=sk_SSL_CIPHER_value(sk
,i
);
1022 j
=ssl_put_cipher_by_char(s
,c
,p
);
1028 STACK_OF(SSL_CIPHER
) *ssl_bytes_to_cipher_list(SSL
*s
,unsigned char *p
,int num
,
1029 STACK_OF(SSL_CIPHER
) **skp
)
1032 STACK_OF(SSL_CIPHER
) *sk
;
1035 n
=ssl_put_cipher_by_char(s
,NULL
,NULL
);
1038 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
1041 if ((skp
== NULL
) || (*skp
== NULL
))
1042 sk
=sk_SSL_CIPHER_new(NULL
); /* change perhaps later */
1046 sk_SSL_CIPHER_zero(sk
);
1049 for (i
=0; i
<num
; i
+=n
)
1051 c
=ssl_get_cipher_by_char(s
,p
);
1055 if (!sk_SSL_CIPHER_push(sk
,c
))
1057 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,ERR_R_MALLOC_FAILURE
);
1067 if ((skp
== NULL
) || (*skp
== NULL
))
1068 sk_SSL_CIPHER_free(sk
);
1072 unsigned long SSL_SESSION_hash(SSL_SESSION
*a
)
1077 ((unsigned int) a
->session_id
[0] )|
1078 ((unsigned int) a
->session_id
[1]<< 8L)|
1079 ((unsigned long)a
->session_id
[2]<<16L)|
1080 ((unsigned long)a
->session_id
[3]<<24L);
1084 int SSL_SESSION_cmp(SSL_SESSION
*a
,SSL_SESSION
*b
)
1086 if (a
->ssl_version
!= b
->ssl_version
)
1088 if (a
->session_id_length
!= b
->session_id_length
)
1090 return(memcmp(a
->session_id
,b
->session_id
,a
->session_id_length
));
1093 SSL_CTX
*SSL_CTX_new(SSL_METHOD
*meth
)
1099 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_NULL_SSL_METHOD_PASSED
);
1103 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1105 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
1108 ret
=(SSL_CTX
*)Malloc(sizeof(SSL_CTX
));
1112 memset(ret
,0,sizeof(SSL_CTX
));
1116 ret
->cert_store
=NULL
;
1117 ret
->session_cache_mode
=SSL_SESS_CACHE_SERVER
;
1118 ret
->session_cache_size
=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
1119 ret
->session_cache_head
=NULL
;
1120 ret
->session_cache_tail
=NULL
;
1122 /* We take the system default */
1123 ret
->session_timeout
=meth
->get_timeout();
1125 ret
->new_session_cb
=NULL
;
1126 ret
->remove_session_cb
=NULL
;
1127 ret
->get_session_cb
=NULL
;
1129 memset((char *)&ret
->stats
,0,sizeof(ret
->stats
));
1132 ret
->quiet_shutdown
=0;
1134 /* ret->cipher=NULL;*/
1135 /* ret->s2->challenge=NULL;
1136 ret->master_key=NULL;
1138 ret->s2->conn_id=NULL; */
1140 ret
->info_callback
=NULL
;
1142 ret
->app_verify_callback
=NULL
;
1143 ret
->app_verify_arg
=NULL
;
1146 ret
->verify_mode
=SSL_VERIFY_NONE
;
1147 ret
->verify_depth
=-1; /* Don't impose a limit (but x509_lu.c does) */
1148 ret
->default_verify_callback
=NULL
;
1149 if ((ret
->cert
=ssl_cert_new()) == NULL
)
1152 ret
->default_passwd_callback
=NULL
;
1153 ret
->default_passwd_callback_userdata
=NULL
;
1154 ret
->client_cert_cb
=NULL
;
1156 ret
->sessions
=lh_new(SSL_SESSION_hash
,SSL_SESSION_cmp
);
1157 if (ret
->sessions
== NULL
) goto err
;
1158 ret
->cert_store
=X509_STORE_new();
1159 if (ret
->cert_store
== NULL
) goto err
;
1161 ssl_create_cipher_list(ret
->method
,
1162 &ret
->cipher_list
,&ret
->cipher_list_by_id
,
1163 SSL_DEFAULT_CIPHER_LIST
);
1164 if (ret
->cipher_list
== NULL
1165 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0)
1167 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_LIBRARY_HAS_NO_CIPHERS
);
1171 if ((ret
->rsa_md5
=EVP_get_digestbyname("ssl2-md5")) == NULL
)
1173 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES
);
1176 if ((ret
->md5
=EVP_get_digestbyname("ssl3-md5")) == NULL
)
1178 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
1181 if ((ret
->sha1
=EVP_get_digestbyname("ssl3-sha1")) == NULL
)
1183 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
1187 if ((ret
->client_CA
=sk_X509_NAME_new_null()) == NULL
)
1190 CRYPTO_new_ex_data(ssl_ctx_meth
,(char *)ret
,&ret
->ex_data
);
1192 ret
->extra_certs
=NULL
;
1193 ret
->comp_methods
=SSL_COMP_get_compression_methods();
1197 SSLerr(SSL_F_SSL_CTX_NEW
,ERR_R_MALLOC_FAILURE
);
1199 if (ret
!= NULL
) SSL_CTX_free(ret
);
1203 static void SSL_COMP_free(SSL_COMP
*comp
)
1206 void SSL_CTX_free(SSL_CTX
*a
)
1210 if (a
== NULL
) return;
1212 i
=CRYPTO_add(&a
->references
,-1,CRYPTO_LOCK_SSL_CTX
);
1214 REF_PRINT("SSL_CTX",a
);
1220 fprintf(stderr
,"SSL_CTX_free, bad reference count\n");
1224 CRYPTO_free_ex_data(ssl_ctx_meth
,(char *)a
,&a
->ex_data
);
1226 if (a
->sessions
!= NULL
)
1228 SSL_CTX_flush_sessions(a
,0);
1229 lh_free(a
->sessions
);
1231 if (a
->cert_store
!= NULL
)
1232 X509_STORE_free(a
->cert_store
);
1233 if (a
->cipher_list
!= NULL
)
1234 sk_SSL_CIPHER_free(a
->cipher_list
);
1235 if (a
->cipher_list_by_id
!= NULL
)
1236 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
1237 if (a
->cert
!= NULL
)
1238 ssl_cert_free(a
->cert
);
1239 if (a
->client_CA
!= NULL
)
1240 sk_X509_NAME_pop_free(a
->client_CA
,X509_NAME_free
);
1241 if (a
->extra_certs
!= NULL
)
1242 sk_X509_pop_free(a
->extra_certs
,X509_free
);
1243 if (a
->comp_methods
!= NULL
)
1244 sk_SSL_COMP_pop_free(a
->comp_methods
,SSL_COMP_free
);
1248 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
1250 ctx
->default_passwd_callback
=cb
;
1253 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
,void *u
)
1255 ctx
->default_passwd_callback_userdata
=u
;
1258 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,int (*cb
)(),char *arg
)
1261 * int (*cb)(X509_STORE_CTX *),
1263 * int (*cb)(X509_STORE_CTX *, void *arg)
1265 ctx
->app_verify_callback
=cb
;
1266 ctx
->app_verify_arg
=arg
; /* never used */
1269 void SSL_CTX_set_verify(SSL_CTX
*ctx
,int mode
,int (*cb
)(int, X509_STORE_CTX
*))
1271 ctx
->verify_mode
=mode
;
1272 ctx
->default_verify_callback
=cb
;
1273 /* This needs cleaning up EAY EAY EAY */
1274 X509_STORE_set_verify_cb_func(ctx
->cert_store
,cb
);
1277 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
,int depth
)
1279 ctx
->verify_depth
=depth
;
1282 void ssl_set_cert_masks(CERT
*c
, SSL_CIPHER
*cipher
)
1285 int rsa_enc
,rsa_tmp
,rsa_sign
,dh_tmp
,dh_rsa
,dh_dsa
,dsa_sign
;
1286 int rsa_enc_export
,dh_rsa_export
,dh_dsa_export
;
1287 int rsa_tmp_export
,dh_tmp_export
,kl
;
1288 unsigned long mask
,emask
;
1290 if (c
== NULL
) return;
1292 kl
=SSL_C_EXPORT_PKEYLENGTH(cipher
);
1295 rsa_tmp
=(c
->rsa_tmp
!= NULL
|| c
->rsa_tmp_cb
!= NULL
);
1296 rsa_tmp_export
=(c
->rsa_tmp_cb
!= NULL
||
1297 (rsa_tmp
&& RSA_size(c
->rsa_tmp
)*8 <= kl
));
1299 rsa_tmp
=rsa_tmp_export
=0;
1302 dh_tmp
=(c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
);
1303 dh_tmp_export
=(c
->dh_tmp_cb
!= NULL
||
1304 (dh_tmp
&& DH_size(c
->dh_tmp
)*8 <= kl
));
1306 dh_tmp
=dh_tmp_export
=0;
1309 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_ENC
]);
1310 rsa_enc
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1311 rsa_enc_export
=(rsa_enc
&& EVP_PKEY_size(cpk
->privatekey
)*8 <= kl
);
1312 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_SIGN
]);
1313 rsa_sign
=(cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1314 cpk
= &(c
->pkeys
[SSL_PKEY_DSA_SIGN
]);
1315 dsa_sign
=(cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1316 cpk
= &(c
->pkeys
[SSL_PKEY_DH_RSA
]);
1317 dh_rsa
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1318 dh_rsa_export
=(dh_rsa
&& EVP_PKEY_size(cpk
->privatekey
)*8 <= kl
);
1319 cpk
= &(c
->pkeys
[SSL_PKEY_DH_DSA
]);
1320 /* FIX THIS EAY EAY EAY */
1321 dh_dsa
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1322 dh_dsa_export
=(dh_dsa
&& EVP_PKEY_size(cpk
->privatekey
)*8 <= kl
);
1328 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1329 rsa_tmp
,rsa_tmp_export
,dh_tmp
,
1330 rsa_enc
,rsa_enc_export
,rsa_sign
,dsa_sign
,dh_rsa
,dh_dsa
);
1333 if (rsa_enc
|| (rsa_tmp
&& rsa_sign
))
1335 if (rsa_enc_export
|| (rsa_tmp_export
&& (rsa_sign
|| rsa_enc
)))
1339 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1340 if ( (dh_tmp
|| dh_rsa
|| dh_dsa
) &&
1341 (rsa_enc
|| rsa_sign
|| dsa_sign
))
1343 if ((dh_tmp_export
|| dh_rsa_export
|| dh_dsa_export
) &&
1344 (rsa_enc
|| rsa_sign
|| dsa_sign
))
1354 if (dh_rsa
) mask
|=SSL_kDHr
;
1355 if (dh_rsa_export
) emask
|=SSL_kDHr
;
1357 if (dh_dsa
) mask
|=SSL_kDHd
;
1358 if (dh_dsa_export
) emask
|=SSL_kDHd
;
1360 if (rsa_enc
|| rsa_sign
)
1376 c
->export_mask
=emask
;
1380 /* THIS NEEDS CLEANING UP */
1381 X509
*ssl_get_server_send_cert(SSL
*s
)
1383 unsigned long alg
,mask
,kalg
;
1388 ssl_set_cert_masks(c
, s
->s3
->tmp
.new_cipher
);
1389 alg
=s
->s3
->tmp
.new_cipher
->algorithms
;
1390 is_export
=SSL_C_IS_EXPORT(s
->s3
->tmp
.new_cipher
);
1391 mask
=is_export
?c
->export_mask
:c
->mask
;
1392 kalg
=alg
&(SSL_MKEY_MASK
|SSL_AUTH_MASK
);
1394 if (kalg
& SSL_kDHr
)
1396 else if (kalg
& SSL_kDHd
)
1398 else if (kalg
& SSL_aDSS
)
1399 i
=SSL_PKEY_DSA_SIGN
;
1400 else if (kalg
& SSL_aRSA
)
1402 if (c
->pkeys
[SSL_PKEY_RSA_ENC
].x509
== NULL
)
1403 i
=SSL_PKEY_RSA_SIGN
;
1407 else /* if (kalg & SSL_aNULL) */
1409 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT
,SSL_R_INTERNAL_ERROR
);
1412 if (c
->pkeys
[i
].x509
== NULL
) return(NULL
);
1413 return(c
->pkeys
[i
].x509
);
1416 EVP_PKEY
*ssl_get_sign_pkey(SSL
*s
,SSL_CIPHER
*cipher
)
1421 alg
=cipher
->algorithms
;
1424 if ((alg
& SSL_aDSS
) &&
1425 (c
->pkeys
[SSL_PKEY_DSA_SIGN
].privatekey
!= NULL
))
1426 return(c
->pkeys
[SSL_PKEY_DSA_SIGN
].privatekey
);
1427 else if (alg
& SSL_aRSA
)
1429 if (c
->pkeys
[SSL_PKEY_RSA_SIGN
].privatekey
!= NULL
)
1430 return(c
->pkeys
[SSL_PKEY_RSA_SIGN
].privatekey
);
1431 else if (c
->pkeys
[SSL_PKEY_RSA_ENC
].privatekey
!= NULL
)
1432 return(c
->pkeys
[SSL_PKEY_RSA_ENC
].privatekey
);
1436 else /* if (alg & SSL_aNULL) */
1438 SSLerr(SSL_F_SSL_GET_SIGN_PKEY
,SSL_R_INTERNAL_ERROR
);
1443 void ssl_update_cache(SSL
*s
,int mode
)
1447 /* If the session_id_length is 0, we are not supposed to cache it,
1448 * and it would be rather hard to do anyway :-) */
1449 if (s
->session
->session_id_length
== 0) return;
1451 if ((s
->ctx
->session_cache_mode
& mode
)
1453 && SSL_CTX_add_session(s
->ctx
,s
->session
)
1454 && (s
->ctx
->new_session_cb
!= NULL
))
1456 CRYPTO_add(&s
->session
->references
,1,CRYPTO_LOCK_SSL_SESSION
);
1457 if (!s
->ctx
->new_session_cb(s
,s
->session
))
1458 SSL_SESSION_free(s
->session
);
1461 /* auto flush every 255 connections */
1462 i
=s
->ctx
->session_cache_mode
;
1463 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) &&
1464 ((i
& mode
) == mode
))
1466 if ( (((mode
& SSL_SESS_CACHE_CLIENT
)
1467 ?s
->ctx
->stats
.sess_connect_good
1468 :s
->ctx
->stats
.sess_accept_good
) & 0xff) == 0xff)
1470 SSL_CTX_flush_sessions(s
->ctx
,time(NULL
));
1475 SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
1480 int SSL_set_ssl_method(SSL
*s
,SSL_METHOD
*meth
)
1485 if (s
->method
!= meth
)
1487 if (s
->handshake_func
!= NULL
)
1488 conn
=(s
->handshake_func
== s
->method
->ssl_connect
);
1490 if (s
->method
->version
== meth
->version
)
1494 s
->method
->ssl_free(s
);
1496 ret
=s
->method
->ssl_new(s
);
1500 s
->handshake_func
=meth
->ssl_connect
;
1502 s
->handshake_func
=meth
->ssl_accept
;
1507 int SSL_get_error(SSL
*s
,int i
)
1513 if (i
> 0) return(SSL_ERROR_NONE
);
1515 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1516 * etc, where we do encode the error */
1517 if ((l
=ERR_peek_error()) != 0)
1519 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
1520 return(SSL_ERROR_SYSCALL
);
1522 return(SSL_ERROR_SSL
);
1525 if ((i
< 0) && SSL_want_read(s
))
1527 bio
=SSL_get_rbio(s
);
1528 if (BIO_should_read(bio
))
1529 return(SSL_ERROR_WANT_READ
);
1530 else if (BIO_should_write(bio
))
1531 /* This one doesn't make too much sense ... We never try
1532 * to write to the rbio, and an application program where
1533 * rbio and wbio are separate couldn't even know what it
1535 * However if we ever set s->rwstate incorrectly
1536 * (so that we have SSL_want_read(s) instead of
1537 * SSL_want_write(s)) and rbio and wbio *are* the same,
1538 * this test works around that bug; so it might be safer
1540 return(SSL_ERROR_WANT_WRITE
);
1541 else if (BIO_should_io_special(bio
))
1543 reason
=BIO_get_retry_reason(bio
);
1544 if (reason
== BIO_RR_CONNECT
)
1545 return(SSL_ERROR_WANT_CONNECT
);
1547 return(SSL_ERROR_SYSCALL
); /* unknown */
1551 if ((i
< 0) && SSL_want_write(s
))
1553 bio
=SSL_get_wbio(s
);
1554 if (BIO_should_write(bio
))
1555 return(SSL_ERROR_WANT_WRITE
);
1556 else if (BIO_should_read(bio
))
1557 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1558 return(SSL_ERROR_WANT_READ
);
1559 else if (BIO_should_io_special(bio
))
1561 reason
=BIO_get_retry_reason(bio
);
1562 if (reason
== BIO_RR_CONNECT
)
1563 return(SSL_ERROR_WANT_CONNECT
);
1565 return(SSL_ERROR_SYSCALL
);
1568 if ((i
< 0) && SSL_want_x509_lookup(s
))
1570 return(SSL_ERROR_WANT_X509_LOOKUP
);
1575 if (s
->version
== SSL2_VERSION
)
1577 /* assume it is the socket being closed */
1578 return(SSL_ERROR_ZERO_RETURN
);
1582 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
1583 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
1584 return(SSL_ERROR_ZERO_RETURN
);
1587 return(SSL_ERROR_SYSCALL
);
1590 int SSL_do_handshake(SSL
*s
)
1594 if (s
->handshake_func
== NULL
)
1596 SSLerr(SSL_F_SSL_DO_HANDSHAKE
,SSL_R_CONNECTION_TYPE_NOT_SET
);
1600 s
->method
->ssl_renegotiate_check(s
);
1602 if (SSL_in_init(s
) || SSL_in_before(s
))
1604 ret
=s
->handshake_func(s
);
1609 /* For the next 2 functions, SSL_clear() sets shutdown and so
1610 * one of these calls will reset it */
1611 void SSL_set_accept_state(SSL
*s
)
1615 s
->state
=SSL_ST_ACCEPT
|SSL_ST_BEFORE
;
1616 s
->handshake_func
=s
->method
->ssl_accept
;
1617 /* clear the current cipher */
1618 ssl_clear_cipher_ctx(s
);
1621 void SSL_set_connect_state(SSL
*s
)
1625 s
->state
=SSL_ST_CONNECT
|SSL_ST_BEFORE
;
1626 s
->handshake_func
=s
->method
->ssl_connect
;
1627 /* clear the current cipher */
1628 ssl_clear_cipher_ctx(s
);
1631 int ssl_undefined_function(SSL
*s
)
1633 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1637 SSL_METHOD
*ssl_bad_method(int ver
)
1639 SSLerr(SSL_F_SSL_BAD_METHOD
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1643 const char *SSL_get_version(SSL
*s
)
1645 if (s
->version
== TLS1_VERSION
)
1647 else if (s
->version
== SSL3_VERSION
)
1649 else if (s
->version
== SSL2_VERSION
)
1655 SSL
*SSL_dup(SSL
*s
)
1657 STACK_OF(X509_NAME
) *sk
;
1662 if ((ret
=SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
1665 if (s
->session
!= NULL
)
1667 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1668 SSL_copy_session_id(ret
,s
);
1672 /* No session has been established yet, so we have to expect
1673 * that s->cert or ret->cert will be changed later --
1674 * they should not both point to the same object,
1675 * and thus we can't use SSL_copy_session_id. */
1677 ret
->method
= s
->method
;
1678 ret
->method
->ssl_new(ret
);
1680 if (s
->cert
!= NULL
)
1682 ret
->cert
= ssl_cert_dup(s
->cert
);
1683 if (ret
->cert
== NULL
)
1687 SSL_set_session_id_context(ret
,
1688 s
->sid_ctx
, s
->sid_ctx_length
);
1691 SSL_set_read_ahead(ret
,SSL_get_read_ahead(s
));
1692 SSL_set_verify(ret
,SSL_get_verify_mode(s
),
1693 SSL_get_verify_callback(s
));
1694 SSL_set_verify_depth(ret
,SSL_get_verify_depth(s
));
1696 SSL_set_info_callback(ret
,SSL_get_info_callback(s
));
1698 ret
->debug
=s
->debug
;
1699 ret
->options
=s
->options
;
1701 /* copy app data, a little dangerous perhaps */
1702 if (!CRYPTO_dup_ex_data(ssl_meth
,&ret
->ex_data
,&s
->ex_data
))
1705 /* setup rbio, and wbio */
1706 if (s
->rbio
!= NULL
)
1708 if (!BIO_dup_state(s
->rbio
,(char *)&ret
->rbio
))
1711 if (s
->wbio
!= NULL
)
1713 if (s
->wbio
!= s
->rbio
)
1715 if (!BIO_dup_state(s
->wbio
,(char *)&ret
->wbio
))
1719 ret
->wbio
=ret
->rbio
;
1722 /* dup the cipher_list and cipher_list_by_id stacks */
1723 if (s
->cipher_list
!= NULL
)
1725 if ((ret
->cipher_list
=sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
1728 if (s
->cipher_list_by_id
!= NULL
)
1729 if ((ret
->cipher_list_by_id
=sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
1733 /* Dup the client_CA list */
1734 if (s
->client_CA
!= NULL
)
1736 if ((sk
=sk_X509_NAME_dup(s
->client_CA
)) == NULL
) goto err
;
1738 for (i
=0; i
<sk_X509_NAME_num(sk
); i
++)
1740 xn
=sk_X509_NAME_value(sk
,i
);
1741 if (sk_X509_NAME_set(sk
,i
,X509_NAME_dup(xn
)) == NULL
)
1749 ret
->shutdown
=s
->shutdown
;
1750 ret
->state
=s
->state
;
1751 ret
->handshake_func
=s
->handshake_func
;
1752 ret
->server
=s
->server
;
1757 if (ret
!= NULL
) SSL_free(ret
);
1763 void ssl_clear_cipher_ctx(SSL
*s
)
1765 if (s
->enc_read_ctx
!= NULL
)
1767 EVP_CIPHER_CTX_cleanup(s
->enc_read_ctx
);
1768 Free(s
->enc_read_ctx
);
1769 s
->enc_read_ctx
=NULL
;
1771 if (s
->enc_write_ctx
!= NULL
)
1773 EVP_CIPHER_CTX_cleanup(s
->enc_write_ctx
);
1774 Free(s
->enc_write_ctx
);
1775 s
->enc_write_ctx
=NULL
;
1777 if (s
->expand
!= NULL
)
1779 COMP_CTX_free(s
->expand
);
1782 if (s
->compress
!= NULL
)
1784 COMP_CTX_free(s
->compress
);
1789 /* Fix this function so that it takes an optional type parameter */
1790 X509
*SSL_get_certificate(SSL
*s
)
1792 if (s
->cert
!= NULL
)
1793 return(s
->cert
->key
->x509
);
1798 /* Fix this function so that it takes an optional type parameter */
1799 EVP_PKEY
*SSL_get_privatekey(SSL
*s
)
1801 if (s
->cert
!= NULL
)
1802 return(s
->cert
->key
->privatekey
);
1807 SSL_CIPHER
*SSL_get_current_cipher(SSL
*s
)
1809 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
1810 return(s
->session
->cipher
);
1814 int ssl_init_wbio_buffer(SSL
*s
,int push
)
1818 if (s
->bbio
== NULL
)
1820 bbio
=BIO_new(BIO_f_buffer());
1821 if (bbio
== NULL
) return(0);
1827 if (s
->bbio
== s
->wbio
)
1828 s
->wbio
=BIO_pop(s
->wbio
);
1830 (void)BIO_reset(bbio
);
1831 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
1832 if (!BIO_set_read_buffer_size(bbio
,1))
1834 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
,ERR_R_BUF_LIB
);
1839 if (s
->wbio
!= bbio
)
1840 s
->wbio
=BIO_push(bbio
,s
->wbio
);
1844 if (s
->wbio
== bbio
)
1845 s
->wbio
=BIO_pop(bbio
);
1850 void ssl_free_wbio_buffer(SSL
*s
)
1854 if (s
->bbio
== NULL
) return;
1856 if (s
->bbio
== s
->wbio
)
1858 /* remove buffering */
1859 under
=BIO_pop(s
->wbio
);
1869 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
,int mode
)
1871 ctx
->quiet_shutdown
=mode
;
1874 int SSL_CTX_get_quiet_shutdown(SSL_CTX
*ctx
)
1876 return(ctx
->quiet_shutdown
);
1879 void SSL_set_quiet_shutdown(SSL
*s
,int mode
)
1881 s
->quiet_shutdown
=mode
;
1884 int SSL_get_quiet_shutdown(SSL
*s
)
1886 return(s
->quiet_shutdown
);
1889 void SSL_set_shutdown(SSL
*s
,int mode
)
1894 int SSL_get_shutdown(SSL
*s
)
1896 return(s
->shutdown
);
1899 int SSL_version(SSL
*s
)
1904 SSL_CTX
*SSL_get_SSL_CTX(SSL
*ssl
)
1910 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
1912 return(X509_STORE_set_default_paths(ctx
->cert_store
));
1915 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
1918 return(X509_STORE_load_locations(ctx
->cert_store
,CAfile
,CApath
));
1922 void SSL_set_info_callback(SSL
*ssl
,void (*cb
)())
1924 ssl
->info_callback
=cb
;
1927 void (*SSL_get_info_callback(SSL
*ssl
))(void)
1929 return((void (*)())ssl
->info_callback
);
1932 int SSL_state(SSL
*ssl
)
1937 void SSL_set_verify_result(SSL
*ssl
,long arg
)
1939 ssl
->verify_result
=arg
;
1942 long SSL_get_verify_result(SSL
*ssl
)
1944 return(ssl
->verify_result
);
1947 int SSL_get_ex_new_index(long argl
,void *argp
,CRYPTO_EX_new
*new_func
,
1948 CRYPTO_EX_dup
*dup_func
,CRYPTO_EX_free
*free_func
)
1951 return(CRYPTO_get_ex_new_index(ssl_meth_num
-1,
1952 &ssl_meth
,argl
,argp
,new_func
,dup_func
,free_func
));
1955 int SSL_set_ex_data(SSL
*s
,int idx
,void *arg
)
1957 return(CRYPTO_set_ex_data(&s
->ex_data
,idx
,arg
));
1960 void *SSL_get_ex_data(SSL
*s
,int idx
)
1962 return(CRYPTO_get_ex_data(&s
->ex_data
,idx
));
1965 int SSL_CTX_get_ex_new_index(long argl
,void *argp
,CRYPTO_EX_new
*new_func
,
1966 CRYPTO_EX_dup
*dup_func
,CRYPTO_EX_free
*free_func
)
1969 return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num
-1,
1970 &ssl_ctx_meth
,argl
,argp
,new_func
,dup_func
,free_func
));
1973 int SSL_CTX_set_ex_data(SSL_CTX
*s
,int idx
,void *arg
)
1975 return(CRYPTO_set_ex_data(&s
->ex_data
,idx
,arg
));
1978 void *SSL_CTX_get_ex_data(SSL_CTX
*s
,int idx
)
1980 return(CRYPTO_get_ex_data(&s
->ex_data
,idx
));
1988 X509_STORE
*SSL_CTX_get_cert_store(SSL_CTX
*ctx
)
1990 return(ctx
->cert_store
);
1993 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
,X509_STORE
*store
)
1995 if (ctx
->cert_store
!= NULL
)
1996 X509_STORE_free(ctx
->cert_store
);
1997 ctx
->cert_store
=store
;
2000 int SSL_want(SSL
*s
)
2006 * \brief Set the callback for generating temporary RSA keys.
2007 * \param ctx the SSL context.
2008 * \param cb the callback
2012 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX
*ctx
,RSA
*(*cb
)(SSL
*ssl
,
2016 SSL_CTX_callback_ctrl(ctx
,SSL_CTRL_SET_TMP_RSA_CB
,(void (*)())cb
);
2019 void SSL_set_tmp_rsa_callback(SSL
*ssl
,RSA
*(*cb
)(SSL
*ssl
,
2023 SSL_callback_ctrl(ssl
,SSL_CTRL_SET_TMP_RSA_CB
,(void (*)())cb
);
2029 * \brief The RSA temporary key callback function.
2030 * \param ssl the SSL session.
2031 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2032 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2033 * of the required key in bits.
2034 * \return the temporary RSA key.
2035 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2038 RSA
*cb(SSL
*ssl
,int is_export
,int keylength
)
2043 * \brief Set the callback for generating temporary DH keys.
2044 * \param ctx the SSL context.
2045 * \param dh the callback
2049 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,DH
*(*dh
)(SSL
*ssl
,int is_export
,
2052 SSL_CTX_callback_ctrl(ctx
,SSL_CTRL_SET_TMP_DH_CB
,(void (*)())dh
);
2055 void SSL_set_tmp_dh_callback(SSL
*ssl
,DH
*(*dh
)(SSL
*ssl
,int is_export
,
2058 SSL_callback_ctrl(ssl
,SSL_CTRL_SET_TMP_DH_CB
,(void (*)())dh
);
2062 #if defined(_WINDLL) && defined(WIN16)
2063 #include "../crypto/bio/bss_file.c"
2066 IMPLEMENT_STACK_OF(SSL_CIPHER
)
2067 IMPLEMENT_STACK_OF(SSL_COMP
)