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
84 union rsa_fn_to_char_u
87 RSA
*(*fn_p
)(SSL
*, int, int);
93 DH
*(*fn_p
)(SSL
*, int, int);
100 if (s
->method
== NULL
)
102 SSLerr(SSL_F_SSL_CLEAR
,SSL_R_NO_METHOD_SPECIFIED
);
111 /* This is set if we are doing dynamic renegotiation so keep
112 * the old cipher. It is sort of a SSL_clear_lite :-) */
113 if (s
->new_session
) return(1);
116 state
=s
->state
; /* Keep to check if we throw away the session-id */
119 s
->state
=SSL_ST_BEFORE
|((s
->server
)?SSL_ST_ACCEPT
:SSL_ST_CONNECT
);
121 s
->version
=s
->method
->version
;
122 s
->client_version
=s
->version
;
123 s
->rwstate
=SSL_NOTHING
;
124 s
->rstate
=SSL_ST_READ_HEADER
;
125 s
->read_ahead
=s
->ctx
->read_ahead
;
127 if (s
->init_buf
!= NULL
)
129 BUF_MEM_free(s
->init_buf
);
133 ssl_clear_cipher_ctx(s
);
135 if (ssl_clear_bad_session(s
))
137 SSL_SESSION_free(s
->session
);
144 /* Check to see if we were changed into a different method, if
145 * so, revert back if we are not doing session-id reuse. */
146 if ((s
->session
== NULL
) && (s
->method
!= s
->ctx
->method
))
148 s
->method
->ssl_free(s
);
149 s
->method
=s
->ctx
->method
;
150 if (!s
->method
->ssl_new(s
))
155 s
->method
->ssl_clear(s
);
159 /** Used to change an SSL_CTXs default SSL method type */
160 int SSL_CTX_set_ssl_version(SSL_CTX
*ctx
,SSL_METHOD
*meth
)
162 STACK_OF(SSL_CIPHER
) *sk
;
166 sk
=ssl_create_cipher_list(ctx
->method
,&(ctx
->cipher_list
),
167 &(ctx
->cipher_list_by_id
),SSL_DEFAULT_CIPHER_LIST
);
168 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= 0))
170 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION
,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS
);
176 SSL
*SSL_new(SSL_CTX
*ctx
)
182 SSLerr(SSL_F_SSL_NEW
,SSL_R_NULL_SSL_CTX
);
185 if (ctx
->method
== NULL
)
187 SSLerr(SSL_F_SSL_NEW
,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION
);
191 s
=(SSL
*)Malloc(sizeof(SSL
));
192 if (s
== NULL
) goto err
;
193 memset(s
,0,sizeof(SSL
));
195 if (ctx
->cert
!= NULL
)
197 /* Earlier library versions used to copy the pointer to
198 * the CERT, not its contents; only when setting new
199 * parameters for the per-SSL copy, ssl_cert_new would be
200 * called (and the direct reference to the per-SSL_CTX
201 * settings would be lost, but those still were indirectly
202 * accessed for various purposes, and for that reason they
203 * used to be known as s->ctx->default_cert).
204 * Now we don't look at the SSL_CTX's CERT after having
205 * duplicated it once. */
207 s
->cert
= ssl_cert_dup(ctx
->cert
);
212 s
->cert
=NULL
; /* Cannot really happen (see SSL_CTX_new) */
213 s
->sid_ctx_length
=ctx
->sid_ctx_length
;
214 memcpy(&s
->sid_ctx
,&ctx
->sid_ctx
,sizeof(s
->sid_ctx
));
215 s
->verify_mode
=ctx
->verify_mode
;
216 s
->verify_depth
=ctx
->verify_depth
;
217 s
->verify_callback
=ctx
->default_verify_callback
;
218 s
->purpose
= ctx
->purpose
;
219 s
->trust
= ctx
->trust
;
220 CRYPTO_add(&ctx
->references
,1,CRYPTO_LOCK_SSL_CTX
);
223 s
->verify_result
=X509_V_OK
;
225 s
->method
=ctx
->method
;
227 if (!s
->method
->ssl_new(s
))
230 s
->quiet_shutdown
=ctx
->quiet_shutdown
;
232 s
->server
=(ctx
->method
->ssl_accept
== ssl_undefined_function
)?0:1;
233 s
->options
=ctx
->options
;
237 CRYPTO_new_ex_data(ssl_meth
,s
,&s
->ex_data
);
244 ssl_cert_free(s
->cert
);
246 SSL_CTX_free(s
->ctx
); /* decrement reference count */
249 SSLerr(SSL_F_SSL_NEW
,ERR_R_MALLOC_FAILURE
);
253 int SSL_CTX_set_session_id_context(SSL_CTX
*ctx
,const unsigned char *sid_ctx
,
254 unsigned int sid_ctx_len
)
256 if(sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
)
258 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT
,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
261 ctx
->sid_ctx_length
=sid_ctx_len
;
262 memcpy(ctx
->sid_ctx
,sid_ctx
,sid_ctx_len
);
267 int SSL_set_session_id_context(SSL
*ssl
,const unsigned char *sid_ctx
,
268 unsigned int sid_ctx_len
)
270 if(sid_ctx_len
> SSL_MAX_SID_CTX_LENGTH
)
272 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT
,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG
);
275 ssl
->sid_ctx_length
=sid_ctx_len
;
276 memcpy(ssl
->sid_ctx
,sid_ctx
,sid_ctx_len
);
281 int SSL_CTX_set_purpose(SSL_CTX
*s
, int purpose
)
283 if(X509_PURPOSE_get_by_id(purpose
) == -1) {
284 SSLerr(SSL_F_SSL_CTX_SET_PURPOSE
, SSL_R_INVALID_PURPOSE
);
287 s
->purpose
= purpose
;
291 int SSL_set_purpose(SSL
*s
, int purpose
)
293 if(X509_PURPOSE_get_by_id(purpose
) == -1) {
294 SSLerr(SSL_F_SSL_SET_PURPOSE
, SSL_R_INVALID_PURPOSE
);
297 s
->purpose
= purpose
;
301 int SSL_CTX_set_trust(SSL_CTX
*s
, int trust
)
303 if(X509_TRUST_get_by_id(trust
) == -1) {
304 SSLerr(SSL_F_SSL_CTX_SET_TRUST
, SSL_R_INVALID_TRUST
);
311 int SSL_set_trust(SSL
*s
, int trust
)
313 if(X509_TRUST_get_by_id(trust
) == -1) {
314 SSLerr(SSL_F_SSL_SET_TRUST
, SSL_R_INVALID_TRUST
);
321 void SSL_free(SSL
*s
)
328 i
=CRYPTO_add(&s
->references
,-1,CRYPTO_LOCK_SSL
);
336 fprintf(stderr
,"SSL_free, bad reference count\n");
341 CRYPTO_free_ex_data(ssl_meth
,(char *)s
,&s
->ex_data
);
345 /* If the buffering BIO is in place, pop it off */
346 if (s
->bbio
== s
->wbio
)
348 s
->wbio
=BIO_pop(s
->wbio
);
354 BIO_free_all(s
->rbio
);
355 if ((s
->wbio
!= NULL
) && (s
->wbio
!= s
->rbio
))
356 BIO_free_all(s
->wbio
);
358 if (s
->init_buf
!= NULL
) BUF_MEM_free(s
->init_buf
);
360 /* add extra stuff */
361 if (s
->cipher_list
!= NULL
) sk_SSL_CIPHER_free(s
->cipher_list
);
362 if (s
->cipher_list_by_id
!= NULL
) sk_SSL_CIPHER_free(s
->cipher_list_by_id
);
364 /* Make the next call work :-) */
365 if (s
->session
!= NULL
)
367 ssl_clear_bad_session(s
);
368 SSL_SESSION_free(s
->session
);
371 ssl_clear_cipher_ctx(s
);
373 if (s
->cert
!= NULL
) ssl_cert_free(s
->cert
);
374 /* Free up if allocated */
376 if (s
->ctx
) SSL_CTX_free(s
->ctx
);
378 if (s
->client_CA
!= NULL
)
379 sk_X509_NAME_pop_free(s
->client_CA
,X509_NAME_free
);
381 if (s
->method
!= NULL
) s
->method
->ssl_free(s
);
386 void SSL_set_bio(SSL
*s
,BIO
*rbio
,BIO
*wbio
)
388 /* If the output buffering BIO is still in place, remove it
392 if (s
->wbio
== s
->bbio
)
394 s
->wbio
=s
->wbio
->next_bio
;
395 s
->bbio
->next_bio
=NULL
;
398 if ((s
->rbio
!= NULL
) && (s
->rbio
!= rbio
))
399 BIO_free_all(s
->rbio
);
400 if ((s
->wbio
!= NULL
) && (s
->wbio
!= wbio
) && (s
->rbio
!= s
->wbio
))
401 BIO_free_all(s
->wbio
);
406 BIO
*SSL_get_rbio(SSL
*s
)
409 BIO
*SSL_get_wbio(SSL
*s
)
412 int SSL_get_fd(SSL
*s
)
418 r
=BIO_find_type(b
,BIO_TYPE_DESCRIPTOR
);
425 int SSL_set_fd(SSL
*s
,int fd
)
430 bio
=BIO_new(BIO_s_socket());
434 SSLerr(SSL_F_SSL_SET_FD
,ERR_R_BUF_LIB
);
437 BIO_set_fd(bio
,fd
,BIO_NOCLOSE
);
438 SSL_set_bio(s
,bio
,bio
);
444 int SSL_set_wfd(SSL
*s
,int fd
)
449 if ((s
->rbio
== NULL
) || (BIO_method_type(s
->rbio
) != BIO_TYPE_SOCKET
)
450 || ((int)BIO_get_fd(s
->rbio
,NULL
) != fd
))
452 bio
=BIO_new(BIO_s_socket());
455 { SSLerr(SSL_F_SSL_SET_WFD
,ERR_R_BUF_LIB
); goto err
; }
456 BIO_set_fd(bio
,fd
,BIO_NOCLOSE
);
457 SSL_set_bio(s
,SSL_get_rbio(s
),bio
);
460 SSL_set_bio(s
,SSL_get_rbio(s
),SSL_get_rbio(s
));
466 int SSL_set_rfd(SSL
*s
,int fd
)
471 if ((s
->wbio
== NULL
) || (BIO_method_type(s
->wbio
) != BIO_TYPE_SOCKET
)
472 || ((int)BIO_get_fd(s
->wbio
,NULL
) != fd
))
474 bio
=BIO_new(BIO_s_socket());
478 SSLerr(SSL_F_SSL_SET_RFD
,ERR_R_BUF_LIB
);
481 BIO_set_fd(bio
,fd
,BIO_NOCLOSE
);
482 SSL_set_bio(s
,bio
,SSL_get_wbio(s
));
485 SSL_set_bio(s
,SSL_get_wbio(s
),SSL_get_wbio(s
));
493 /* return length of latest Finished message we sent, copy to 'buf' */
494 size_t SSL_get_finished(SSL
*s
, void *buf
, size_t count
)
500 ret
= s
->s3
->tmp
.finish_md_len
;
503 memcpy(buf
, s
->s3
->tmp
.finish_md
, count
);
508 /* return length of latest Finished message we expected, copy to 'buf' */
509 size_t SSL_get_peer_finished(SSL
*s
, void *buf
, size_t count
)
515 ret
= s
->s3
->tmp
.peer_finish_md_len
;
518 memcpy(buf
, s
->s3
->tmp
.peer_finish_md
, count
);
524 int SSL_get_verify_mode(SSL
*s
)
526 return(s
->verify_mode
);
529 int SSL_get_verify_depth(SSL
*s
)
531 return(s
->verify_depth
);
534 int (*SSL_get_verify_callback(SSL
*s
))(int,X509_STORE_CTX
*)
536 return(s
->verify_callback
);
539 int SSL_CTX_get_verify_mode(SSL_CTX
*ctx
)
541 return(ctx
->verify_mode
);
544 int SSL_CTX_get_verify_depth(SSL_CTX
*ctx
)
546 return(ctx
->verify_depth
);
549 int (*SSL_CTX_get_verify_callback(SSL_CTX
*ctx
))(int,X509_STORE_CTX
*)
551 return(ctx
->default_verify_callback
);
554 void SSL_set_verify(SSL
*s
,int mode
,
555 int (*callback
)(int ok
,X509_STORE_CTX
*ctx
))
558 if (callback
!= NULL
)
559 s
->verify_callback
=callback
;
562 void SSL_set_verify_depth(SSL
*s
,int depth
)
564 s
->verify_depth
=depth
;
567 void SSL_set_read_ahead(SSL
*s
,int yes
)
572 int SSL_get_read_ahead(SSL
*s
)
574 return(s
->read_ahead
);
577 int SSL_pending(SSL
*s
)
579 return(s
->method
->ssl_pending(s
));
582 X509
*SSL_get_peer_certificate(SSL
*s
)
586 if ((s
== NULL
) || (s
->session
== NULL
))
591 if (r
== NULL
) return(r
);
593 CRYPTO_add(&r
->references
,1,CRYPTO_LOCK_X509
);
598 STACK_OF(X509
) *SSL_get_peer_cert_chain(SSL
*s
)
602 if ((s
== NULL
) || (s
->session
== NULL
) || (s
->session
->sess_cert
== NULL
))
605 r
=s
->session
->sess_cert
->cert_chain
;
610 /* Now in theory, since the calling process own 't' it should be safe to
611 * modify. We need to be able to read f without being hassled */
612 void SSL_copy_session_id(SSL
*t
,SSL
*f
)
616 /* Do we need to to SSL locking? */
617 SSL_set_session(t
,SSL_get_session(f
));
619 /* what if we are setup as SSLv2 but want to talk SSLv3 or
621 if (t
->method
!= f
->method
)
623 t
->method
->ssl_free(t
); /* cleanup current */
624 t
->method
=f
->method
; /* change method */
625 t
->method
->ssl_new(t
); /* setup new */
631 CRYPTO_add(&f
->cert
->references
,1,CRYPTO_LOCK_SSL_CERT
);
636 if (tmp
!= NULL
) ssl_cert_free(tmp
);
637 SSL_set_session_id_context(t
,f
->sid_ctx
,f
->sid_ctx_length
);
640 /* Fix this so it checks all the valid key/cert options */
641 int SSL_CTX_check_private_key(SSL_CTX
*ctx
)
643 if ( (ctx
== NULL
) ||
644 (ctx
->cert
== NULL
) ||
645 (ctx
->cert
->key
->x509
== NULL
))
647 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,SSL_R_NO_CERTIFICATE_ASSIGNED
);
650 if (ctx
->cert
->key
->privatekey
== NULL
)
652 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY
,SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
655 return(X509_check_private_key(ctx
->cert
->key
->x509
, ctx
->cert
->key
->privatekey
));
658 /* Fix this function so that it takes an optional type parameter */
659 int SSL_check_private_key(SSL
*ssl
)
663 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,ERR_R_PASSED_NULL_PARAMETER
);
666 if (ssl
->cert
== NULL
)
668 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,SSL_R_NO_CERTIFICATE_ASSIGNED
);
671 if (ssl
->cert
->key
->x509
== NULL
)
673 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,SSL_R_NO_CERTIFICATE_ASSIGNED
);
676 if (ssl
->cert
->key
->privatekey
== NULL
)
678 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY
,SSL_R_NO_PRIVATE_KEY_ASSIGNED
);
681 return(X509_check_private_key(ssl
->cert
->key
->x509
,
682 ssl
->cert
->key
->privatekey
));
685 int SSL_accept(SSL
*s
)
687 if (s
->handshake_func
== 0)
688 /* Not properly initialized yet */
689 SSL_set_accept_state(s
);
691 return(s
->method
->ssl_accept(s
));
694 int SSL_connect(SSL
*s
)
696 if (s
->handshake_func
== 0)
697 /* Not properly initialized yet */
698 SSL_set_connect_state(s
);
700 return(s
->method
->ssl_connect(s
));
703 long SSL_get_default_timeout(SSL
*s
)
705 return(s
->method
->get_timeout());
708 int SSL_read(SSL
*s
,char *buf
,int num
)
710 if (s
->handshake_func
== 0)
712 SSLerr(SSL_F_SSL_READ
, SSL_R_UNINITIALIZED
);
716 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
)
718 s
->rwstate
=SSL_NOTHING
;
721 return(s
->method
->ssl_read(s
,buf
,num
));
724 int SSL_peek(SSL
*s
,char *buf
,int num
)
726 if (s
->shutdown
& SSL_RECEIVED_SHUTDOWN
)
730 return(s
->method
->ssl_peek(s
,buf
,num
));
733 int SSL_write(SSL
*s
,const char *buf
,int num
)
735 if (s
->handshake_func
== 0)
737 SSLerr(SSL_F_SSL_WRITE
, SSL_R_UNINITIALIZED
);
741 if (s
->shutdown
& SSL_SENT_SHUTDOWN
)
743 s
->rwstate
=SSL_NOTHING
;
744 SSLerr(SSL_F_SSL_WRITE
,SSL_R_PROTOCOL_IS_SHUTDOWN
);
747 return(s
->method
->ssl_write(s
,buf
,num
));
750 int SSL_shutdown(SSL
*s
)
752 /* Note that this function behaves differently from what one might
753 * expect. Return values are 0 for no success (yet),
754 * 1 for success; but calling it once is usually not enough,
755 * even if blocking I/O is used (see ssl3_shutdown).
758 if (s
->handshake_func
== 0)
760 SSLerr(SSL_F_SSL_SHUTDOWN
, SSL_R_UNINITIALIZED
);
764 if ((s
!= NULL
) && !SSL_in_init(s
))
765 return(s
->method
->ssl_shutdown(s
));
770 int SSL_renegotiate(SSL
*s
)
773 return(s
->method
->ssl_renegotiate(s
));
776 long SSL_ctrl(SSL
*s
,int cmd
,long larg
,char *parg
)
782 case SSL_CTRL_GET_READ_AHEAD
:
783 return(s
->read_ahead
);
784 case SSL_CTRL_SET_READ_AHEAD
:
788 case SSL_CTRL_OPTIONS
:
789 return(s
->options
|=larg
);
791 return(s
->mode
|=larg
);
793 return(s
->method
->ssl_ctrl(s
,cmd
,larg
,parg
));
797 long SSL_CTX_ctrl(SSL_CTX
*ctx
,int cmd
,long larg
,char *parg
)
803 case SSL_CTRL_GET_READ_AHEAD
:
804 return(ctx
->read_ahead
);
805 case SSL_CTRL_SET_READ_AHEAD
:
807 ctx
->read_ahead
=larg
;
810 case SSL_CTRL_SET_SESS_CACHE_SIZE
:
811 l
=ctx
->session_cache_size
;
812 ctx
->session_cache_size
=larg
;
814 case SSL_CTRL_GET_SESS_CACHE_SIZE
:
815 return(ctx
->session_cache_size
);
816 case SSL_CTRL_SET_SESS_CACHE_MODE
:
817 l
=ctx
->session_cache_mode
;
818 ctx
->session_cache_mode
=larg
;
820 case SSL_CTRL_GET_SESS_CACHE_MODE
:
821 return(ctx
->session_cache_mode
);
823 case SSL_CTRL_SESS_NUMBER
:
824 return(ctx
->sessions
->num_items
);
825 case SSL_CTRL_SESS_CONNECT
:
826 return(ctx
->stats
.sess_connect
);
827 case SSL_CTRL_SESS_CONNECT_GOOD
:
828 return(ctx
->stats
.sess_connect_good
);
829 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE
:
830 return(ctx
->stats
.sess_connect_renegotiate
);
831 case SSL_CTRL_SESS_ACCEPT
:
832 return(ctx
->stats
.sess_accept
);
833 case SSL_CTRL_SESS_ACCEPT_GOOD
:
834 return(ctx
->stats
.sess_accept_good
);
835 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE
:
836 return(ctx
->stats
.sess_accept_renegotiate
);
837 case SSL_CTRL_SESS_HIT
:
838 return(ctx
->stats
.sess_hit
);
839 case SSL_CTRL_SESS_CB_HIT
:
840 return(ctx
->stats
.sess_cb_hit
);
841 case SSL_CTRL_SESS_MISSES
:
842 return(ctx
->stats
.sess_miss
);
843 case SSL_CTRL_SESS_TIMEOUTS
:
844 return(ctx
->stats
.sess_timeout
);
845 case SSL_CTRL_SESS_CACHE_FULL
:
846 return(ctx
->stats
.sess_cache_full
);
847 case SSL_CTRL_OPTIONS
:
848 return(ctx
->options
|=larg
);
850 return(ctx
->mode
|=larg
);
852 return(ctx
->method
->ssl_ctx_ctrl(ctx
,cmd
,larg
,parg
));
856 int ssl_cipher_id_cmp(SSL_CIPHER
*a
,SSL_CIPHER
*b
)
864 return((l
> 0)?1:-1);
867 int ssl_cipher_ptr_id_cmp(SSL_CIPHER
**ap
,SSL_CIPHER
**bp
)
871 l
=(*ap
)->id
-(*bp
)->id
;
875 return((l
> 0)?1:-1);
878 /** return a STACK of the ciphers available for the SSL and in order of
880 STACK_OF(SSL_CIPHER
) *SSL_get_ciphers(SSL
*s
)
882 if ((s
!= NULL
) && (s
->cipher_list
!= NULL
))
884 return(s
->cipher_list
);
886 else if ((s
->ctx
!= NULL
) &&
887 (s
->ctx
->cipher_list
!= NULL
))
889 return(s
->ctx
->cipher_list
);
894 /** return a STACK of the ciphers available for the SSL and in order of
896 STACK_OF(SSL_CIPHER
) *ssl_get_ciphers_by_id(SSL
*s
)
898 if ((s
!= NULL
) && (s
->cipher_list_by_id
!= NULL
))
900 return(s
->cipher_list_by_id
);
902 else if ((s
!= NULL
) && (s
->ctx
!= NULL
) &&
903 (s
->ctx
->cipher_list_by_id
!= NULL
))
905 return(s
->ctx
->cipher_list_by_id
);
910 /** The old interface to get the same thing as SSL_get_ciphers() */
911 const char *SSL_get_cipher_list(SSL
*s
,int n
)
914 STACK_OF(SSL_CIPHER
) *sk
;
916 if (s
== NULL
) return(NULL
);
917 sk
=SSL_get_ciphers(s
);
918 if ((sk
== NULL
) || (sk_SSL_CIPHER_num(sk
) <= n
))
920 c
=sk_SSL_CIPHER_value(sk
,n
);
921 if (c
== NULL
) return(NULL
);
925 /** specify the ciphers to be used by default by the SSL_CTX */
926 int SSL_CTX_set_cipher_list(SSL_CTX
*ctx
, const char *str
)
928 STACK_OF(SSL_CIPHER
) *sk
;
930 sk
=ssl_create_cipher_list(ctx
->method
,&ctx
->cipher_list
,
931 &ctx
->cipher_list_by_id
,str
);
933 return((sk
== NULL
)?0:1);
936 /** specify the ciphers to be used by the SSL */
937 int SSL_set_cipher_list(SSL
*s
,const char *str
)
939 STACK_OF(SSL_CIPHER
) *sk
;
941 sk
=ssl_create_cipher_list(s
->ctx
->method
,&s
->cipher_list
,
942 &s
->cipher_list_by_id
,str
);
944 return((sk
== NULL
)?0:1);
947 /* works well for SSLv2, not so good for SSLv3 */
948 char *SSL_get_shared_ciphers(SSL
*s
,char *buf
,int len
)
952 STACK_OF(SSL_CIPHER
) *sk
;
956 if ((s
->session
== NULL
) || (s
->session
->ciphers
== NULL
) ||
961 sk
=s
->session
->ciphers
;
962 for (i
=0; i
<sk_SSL_CIPHER_num(sk
); i
++)
964 /* Decrement for either the ':' or a '\0' */
966 c
=sk_SSL_CIPHER_value(sk
,i
);
967 for (cp
=c
->name
; *cp
; )
983 int ssl_cipher_list_to_bytes(SSL
*s
,STACK_OF(SSL_CIPHER
) *sk
,unsigned char *p
)
989 if (sk
== NULL
) return(0);
992 for (i
=0; i
<sk_SSL_CIPHER_num(sk
); i
++)
994 c
=sk_SSL_CIPHER_value(sk
,i
);
995 j
=ssl_put_cipher_by_char(s
,c
,p
);
1001 STACK_OF(SSL_CIPHER
) *ssl_bytes_to_cipher_list(SSL
*s
,unsigned char *p
,int num
,
1002 STACK_OF(SSL_CIPHER
) **skp
)
1005 STACK_OF(SSL_CIPHER
) *sk
;
1008 n
=ssl_put_cipher_by_char(s
,NULL
,NULL
);
1011 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST
);
1014 if ((skp
== NULL
) || (*skp
== NULL
))
1015 sk
=sk_SSL_CIPHER_new(NULL
); /* change perhaps later */
1019 sk_SSL_CIPHER_zero(sk
);
1022 for (i
=0; i
<num
; i
+=n
)
1024 c
=ssl_get_cipher_by_char(s
,p
);
1028 if (!sk_SSL_CIPHER_push(sk
,c
))
1030 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST
,ERR_R_MALLOC_FAILURE
);
1040 if ((skp
== NULL
) || (*skp
== NULL
))
1041 sk_SSL_CIPHER_free(sk
);
1045 unsigned long SSL_SESSION_hash(SSL_SESSION
*a
)
1050 ((unsigned int) a
->session_id
[0] )|
1051 ((unsigned int) a
->session_id
[1]<< 8L)|
1052 ((unsigned long)a
->session_id
[2]<<16L)|
1053 ((unsigned long)a
->session_id
[3]<<24L);
1057 int SSL_SESSION_cmp(SSL_SESSION
*a
,SSL_SESSION
*b
)
1059 if (a
->ssl_version
!= b
->ssl_version
)
1061 if (a
->session_id_length
!= b
->session_id_length
)
1063 return(memcmp(a
->session_id
,b
->session_id
,a
->session_id_length
));
1066 SSL_CTX
*SSL_CTX_new(SSL_METHOD
*meth
)
1072 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_NULL_SSL_METHOD_PASSED
);
1076 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1078 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS
);
1081 ret
=(SSL_CTX
*)Malloc(sizeof(SSL_CTX
));
1085 memset(ret
,0,sizeof(SSL_CTX
));
1089 ret
->cert_store
=NULL
;
1090 ret
->session_cache_mode
=SSL_SESS_CACHE_SERVER
;
1091 ret
->session_cache_size
=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT
;
1092 ret
->session_cache_head
=NULL
;
1093 ret
->session_cache_tail
=NULL
;
1095 /* We take the system default */
1096 ret
->session_timeout
=meth
->get_timeout();
1098 ret
->new_session_cb
=NULL
;
1099 ret
->remove_session_cb
=NULL
;
1100 ret
->get_session_cb
=NULL
;
1102 memset((char *)&ret
->stats
,0,sizeof(ret
->stats
));
1105 ret
->quiet_shutdown
=0;
1107 /* ret->cipher=NULL;*/
1108 /* ret->s2->challenge=NULL;
1109 ret->master_key=NULL;
1111 ret->s2->conn_id=NULL; */
1113 ret
->info_callback
=NULL
;
1115 ret
->app_verify_callback
=NULL
;
1116 ret
->app_verify_arg
=NULL
;
1119 ret
->verify_mode
=SSL_VERIFY_NONE
;
1120 ret
->verify_depth
=-1; /* Don't impose a limit (but x509_lu.c does) */
1121 ret
->default_verify_callback
=NULL
;
1122 if ((ret
->cert
=ssl_cert_new()) == NULL
)
1125 ret
->default_passwd_callback
=NULL
;
1126 ret
->default_passwd_callback_userdata
=NULL
;
1127 ret
->client_cert_cb
=NULL
;
1129 ret
->sessions
=lh_new(SSL_SESSION_hash
,SSL_SESSION_cmp
);
1130 if (ret
->sessions
== NULL
) goto err
;
1131 ret
->cert_store
=X509_STORE_new();
1132 if (ret
->cert_store
== NULL
) goto err
;
1134 ssl_create_cipher_list(ret
->method
,
1135 &ret
->cipher_list
,&ret
->cipher_list_by_id
,
1136 SSL_DEFAULT_CIPHER_LIST
);
1137 if (ret
->cipher_list
== NULL
1138 || sk_SSL_CIPHER_num(ret
->cipher_list
) <= 0)
1140 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_LIBRARY_HAS_NO_CIPHERS
);
1144 if ((ret
->rsa_md5
=EVP_get_digestbyname("ssl2-md5")) == NULL
)
1146 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES
);
1149 if ((ret
->md5
=EVP_get_digestbyname("ssl3-md5")) == NULL
)
1151 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES
);
1154 if ((ret
->sha1
=EVP_get_digestbyname("ssl3-sha1")) == NULL
)
1156 SSLerr(SSL_F_SSL_CTX_NEW
,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES
);
1160 if ((ret
->client_CA
=sk_X509_NAME_new_null()) == NULL
)
1163 CRYPTO_new_ex_data(ssl_ctx_meth
,(char *)ret
,&ret
->ex_data
);
1165 ret
->extra_certs
=NULL
;
1166 ret
->comp_methods
=SSL_COMP_get_compression_methods();
1170 SSLerr(SSL_F_SSL_CTX_NEW
,ERR_R_MALLOC_FAILURE
);
1172 if (ret
!= NULL
) SSL_CTX_free(ret
);
1176 static void SSL_COMP_free(SSL_COMP
*comp
)
1179 void SSL_CTX_free(SSL_CTX
*a
)
1183 if (a
== NULL
) return;
1185 i
=CRYPTO_add(&a
->references
,-1,CRYPTO_LOCK_SSL_CTX
);
1187 REF_PRINT("SSL_CTX",a
);
1193 fprintf(stderr
,"SSL_CTX_free, bad reference count\n");
1197 CRYPTO_free_ex_data(ssl_ctx_meth
,(char *)a
,&a
->ex_data
);
1199 if (a
->sessions
!= NULL
)
1201 SSL_CTX_flush_sessions(a
,0);
1202 lh_free(a
->sessions
);
1204 if (a
->cert_store
!= NULL
)
1205 X509_STORE_free(a
->cert_store
);
1206 if (a
->cipher_list
!= NULL
)
1207 sk_SSL_CIPHER_free(a
->cipher_list
);
1208 if (a
->cipher_list_by_id
!= NULL
)
1209 sk_SSL_CIPHER_free(a
->cipher_list_by_id
);
1210 if (a
->cert
!= NULL
)
1211 ssl_cert_free(a
->cert
);
1212 if (a
->client_CA
!= NULL
)
1213 sk_X509_NAME_pop_free(a
->client_CA
,X509_NAME_free
);
1214 if (a
->extra_certs
!= NULL
)
1215 sk_X509_pop_free(a
->extra_certs
,X509_free
);
1216 if (a
->comp_methods
!= NULL
)
1217 sk_SSL_COMP_pop_free(a
->comp_methods
,SSL_COMP_free
);
1221 void SSL_CTX_set_default_passwd_cb(SSL_CTX
*ctx
, pem_password_cb
*cb
)
1223 ctx
->default_passwd_callback
=cb
;
1226 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX
*ctx
,void *u
)
1228 ctx
->default_passwd_callback_userdata
=u
;
1231 void SSL_CTX_set_cert_verify_callback(SSL_CTX
*ctx
,int (*cb
)(),char *arg
)
1234 * int (*cb)(X509_STORE_CTX *),
1236 * int (*cb)(X509_STORE_CTX *, void *arg)
1238 ctx
->app_verify_callback
=cb
;
1239 ctx
->app_verify_arg
=arg
; /* never used */
1242 void SSL_CTX_set_verify(SSL_CTX
*ctx
,int mode
,int (*cb
)(int, X509_STORE_CTX
*))
1244 ctx
->verify_mode
=mode
;
1245 ctx
->default_verify_callback
=cb
;
1246 /* This needs cleaning up EAY EAY EAY */
1247 X509_STORE_set_verify_cb_func(ctx
->cert_store
,cb
);
1250 void SSL_CTX_set_verify_depth(SSL_CTX
*ctx
,int depth
)
1252 ctx
->verify_depth
=depth
;
1255 void ssl_set_cert_masks(CERT
*c
, SSL_CIPHER
*cipher
)
1258 int rsa_enc
,rsa_tmp
,rsa_sign
,dh_tmp
,dh_rsa
,dh_dsa
,dsa_sign
;
1259 int rsa_enc_export
,dh_rsa_export
,dh_dsa_export
;
1260 int rsa_tmp_export
,dh_tmp_export
,kl
;
1261 unsigned long mask
,emask
;
1263 if (c
== NULL
) return;
1265 kl
=SSL_C_EXPORT_PKEYLENGTH(cipher
);
1268 rsa_tmp
=(c
->rsa_tmp
!= NULL
|| c
->rsa_tmp_cb
!= NULL
);
1269 rsa_tmp_export
=(c
->rsa_tmp_cb
!= NULL
||
1270 (rsa_tmp
&& RSA_size(c
->rsa_tmp
)*8 <= kl
));
1272 rsa_tmp
=rsa_tmp_export
=0;
1275 dh_tmp
=(c
->dh_tmp
!= NULL
|| c
->dh_tmp_cb
!= NULL
);
1276 dh_tmp_export
=(c
->dh_tmp_cb
!= NULL
||
1277 (dh_tmp
&& DH_size(c
->dh_tmp
)*8 <= kl
));
1279 dh_tmp
=dh_tmp_export
=0;
1282 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_ENC
]);
1283 rsa_enc
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1284 rsa_enc_export
=(rsa_enc
&& EVP_PKEY_size(cpk
->privatekey
)*8 <= kl
);
1285 cpk
= &(c
->pkeys
[SSL_PKEY_RSA_SIGN
]);
1286 rsa_sign
=(cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1287 cpk
= &(c
->pkeys
[SSL_PKEY_DSA_SIGN
]);
1288 dsa_sign
=(cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1289 cpk
= &(c
->pkeys
[SSL_PKEY_DH_RSA
]);
1290 dh_rsa
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1291 dh_rsa_export
=(dh_rsa
&& EVP_PKEY_size(cpk
->privatekey
)*8 <= kl
);
1292 cpk
= &(c
->pkeys
[SSL_PKEY_DH_DSA
]);
1293 /* FIX THIS EAY EAY EAY */
1294 dh_dsa
= (cpk
->x509
!= NULL
&& cpk
->privatekey
!= NULL
);
1295 dh_dsa_export
=(dh_dsa
&& EVP_PKEY_size(cpk
->privatekey
)*8 <= kl
);
1301 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1302 rsa_tmp
,rsa_tmp_export
,dh_tmp
,
1303 rsa_enc
,rsa_enc_export
,rsa_sign
,dsa_sign
,dh_rsa
,dh_dsa
);
1306 if (rsa_enc
|| (rsa_tmp
&& rsa_sign
))
1308 if (rsa_enc_export
|| (rsa_tmp_export
&& (rsa_sign
|| rsa_enc
)))
1312 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1313 if ( (dh_tmp
|| dh_rsa
|| dh_dsa
) &&
1314 (rsa_enc
|| rsa_sign
|| dsa_sign
))
1316 if ((dh_tmp_export
|| dh_rsa_export
|| dh_dsa_export
) &&
1317 (rsa_enc
|| rsa_sign
|| dsa_sign
))
1327 if (dh_rsa
) mask
|=SSL_kDHr
;
1328 if (dh_rsa_export
) emask
|=SSL_kDHr
;
1330 if (dh_dsa
) mask
|=SSL_kDHd
;
1331 if (dh_dsa_export
) emask
|=SSL_kDHd
;
1333 if (rsa_enc
|| rsa_sign
)
1345 #ifdef SSL_ALLOW_ADH
1351 c
->export_mask
=emask
;
1355 /* THIS NEEDS CLEANING UP */
1356 X509
*ssl_get_server_send_cert(SSL
*s
)
1358 unsigned long alg
,mask
,kalg
;
1363 ssl_set_cert_masks(c
, s
->s3
->tmp
.new_cipher
);
1364 alg
=s
->s3
->tmp
.new_cipher
->algorithms
;
1365 is_export
=SSL_C_IS_EXPORT(s
->s3
->tmp
.new_cipher
);
1366 mask
=is_export
?c
->export_mask
:c
->mask
;
1367 kalg
=alg
&(SSL_MKEY_MASK
|SSL_AUTH_MASK
);
1369 if (kalg
& SSL_kDHr
)
1371 else if (kalg
& SSL_kDHd
)
1373 else if (kalg
& SSL_aDSS
)
1374 i
=SSL_PKEY_DSA_SIGN
;
1375 else if (kalg
& SSL_aRSA
)
1377 if (c
->pkeys
[SSL_PKEY_RSA_ENC
].x509
== NULL
)
1378 i
=SSL_PKEY_RSA_SIGN
;
1382 else /* if (kalg & SSL_aNULL) */
1384 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT
,SSL_R_INTERNAL_ERROR
);
1387 if (c
->pkeys
[i
].x509
== NULL
) return(NULL
);
1388 return(c
->pkeys
[i
].x509
);
1391 EVP_PKEY
*ssl_get_sign_pkey(SSL
*s
,SSL_CIPHER
*cipher
)
1396 alg
=cipher
->algorithms
;
1399 if ((alg
& SSL_aDSS
) &&
1400 (c
->pkeys
[SSL_PKEY_DSA_SIGN
].privatekey
!= NULL
))
1401 return(c
->pkeys
[SSL_PKEY_DSA_SIGN
].privatekey
);
1402 else if (alg
& SSL_aRSA
)
1404 if (c
->pkeys
[SSL_PKEY_RSA_SIGN
].privatekey
!= NULL
)
1405 return(c
->pkeys
[SSL_PKEY_RSA_SIGN
].privatekey
);
1406 else if (c
->pkeys
[SSL_PKEY_RSA_ENC
].privatekey
!= NULL
)
1407 return(c
->pkeys
[SSL_PKEY_RSA_ENC
].privatekey
);
1411 else /* if (alg & SSL_aNULL) */
1413 SSLerr(SSL_F_SSL_GET_SIGN_PKEY
,SSL_R_INTERNAL_ERROR
);
1418 void ssl_update_cache(SSL
*s
,int mode
)
1422 /* If the session_id_length is 0, we are not supposed to cache it,
1423 * and it would be rather hard to do anyway :-) */
1424 if (s
->session
->session_id_length
== 0) return;
1426 if ((s
->ctx
->session_cache_mode
& mode
)
1428 && SSL_CTX_add_session(s
->ctx
,s
->session
)
1429 && (s
->ctx
->new_session_cb
!= NULL
))
1431 CRYPTO_add(&s
->session
->references
,1,CRYPTO_LOCK_SSL_SESSION
);
1432 if (!s
->ctx
->new_session_cb(s
,s
->session
))
1433 SSL_SESSION_free(s
->session
);
1436 /* auto flush every 255 connections */
1437 i
=s
->ctx
->session_cache_mode
;
1438 if ((!(i
& SSL_SESS_CACHE_NO_AUTO_CLEAR
)) &&
1439 ((i
& mode
) == mode
))
1441 if ( (((mode
& SSL_SESS_CACHE_CLIENT
)
1442 ?s
->ctx
->stats
.sess_connect_good
1443 :s
->ctx
->stats
.sess_accept_good
) & 0xff) == 0xff)
1445 SSL_CTX_flush_sessions(s
->ctx
,time(NULL
));
1450 SSL_METHOD
*SSL_get_ssl_method(SSL
*s
)
1455 int SSL_set_ssl_method(SSL
*s
,SSL_METHOD
*meth
)
1460 if (s
->method
!= meth
)
1462 if (s
->handshake_func
!= NULL
)
1463 conn
=(s
->handshake_func
== s
->method
->ssl_connect
);
1465 if (s
->method
->version
== meth
->version
)
1469 s
->method
->ssl_free(s
);
1471 ret
=s
->method
->ssl_new(s
);
1475 s
->handshake_func
=meth
->ssl_connect
;
1477 s
->handshake_func
=meth
->ssl_accept
;
1482 int SSL_get_error(SSL
*s
,int i
)
1488 if (i
> 0) return(SSL_ERROR_NONE
);
1490 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1491 * etc, where we do encode the error */
1492 if ((l
=ERR_peek_error()) != 0)
1494 if (ERR_GET_LIB(l
) == ERR_LIB_SYS
)
1495 return(SSL_ERROR_SYSCALL
);
1497 return(SSL_ERROR_SSL
);
1500 if ((i
< 0) && SSL_want_read(s
))
1502 bio
=SSL_get_rbio(s
);
1503 if (BIO_should_read(bio
))
1504 return(SSL_ERROR_WANT_READ
);
1505 else if (BIO_should_write(bio
))
1506 /* This one doesn't make too much sense ... We never try
1507 * to write to the rbio, and an application program where
1508 * rbio and wbio are separate couldn't even know what it
1510 * However if we ever set s->rwstate incorrectly
1511 * (so that we have SSL_want_read(s) instead of
1512 * SSL_want_write(s)) and rbio and wbio *are* the same,
1513 * this test works around that bug; so it might be safer
1515 return(SSL_ERROR_WANT_WRITE
);
1516 else if (BIO_should_io_special(bio
))
1518 reason
=BIO_get_retry_reason(bio
);
1519 if (reason
== BIO_RR_CONNECT
)
1520 return(SSL_ERROR_WANT_CONNECT
);
1522 return(SSL_ERROR_SYSCALL
); /* unknown */
1526 if ((i
< 0) && SSL_want_write(s
))
1528 bio
=SSL_get_wbio(s
);
1529 if (BIO_should_write(bio
))
1530 return(SSL_ERROR_WANT_WRITE
);
1531 else if (BIO_should_read(bio
))
1532 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1533 return(SSL_ERROR_WANT_READ
);
1534 else if (BIO_should_io_special(bio
))
1536 reason
=BIO_get_retry_reason(bio
);
1537 if (reason
== BIO_RR_CONNECT
)
1538 return(SSL_ERROR_WANT_CONNECT
);
1540 return(SSL_ERROR_SYSCALL
);
1543 if ((i
< 0) && SSL_want_x509_lookup(s
))
1545 return(SSL_ERROR_WANT_X509_LOOKUP
);
1550 if (s
->version
== SSL2_VERSION
)
1552 /* assume it is the socket being closed */
1553 return(SSL_ERROR_ZERO_RETURN
);
1557 if ((s
->shutdown
& SSL_RECEIVED_SHUTDOWN
) &&
1558 (s
->s3
->warn_alert
== SSL_AD_CLOSE_NOTIFY
))
1559 return(SSL_ERROR_ZERO_RETURN
);
1562 return(SSL_ERROR_SYSCALL
);
1565 int SSL_do_handshake(SSL
*s
)
1569 if (s
->handshake_func
== NULL
)
1571 SSLerr(SSL_F_SSL_DO_HANDSHAKE
,SSL_R_CONNECTION_TYPE_NOT_SET
);
1575 s
->method
->ssl_renegotiate_check(s
);
1577 if (SSL_in_init(s
) || SSL_in_before(s
))
1579 ret
=s
->handshake_func(s
);
1584 /* For the next 2 functions, SSL_clear() sets shutdown and so
1585 * one of these calls will reset it */
1586 void SSL_set_accept_state(SSL
*s
)
1590 s
->state
=SSL_ST_ACCEPT
|SSL_ST_BEFORE
;
1591 s
->handshake_func
=s
->method
->ssl_accept
;
1592 /* clear the current cipher */
1593 ssl_clear_cipher_ctx(s
);
1596 void SSL_set_connect_state(SSL
*s
)
1600 s
->state
=SSL_ST_CONNECT
|SSL_ST_BEFORE
;
1601 s
->handshake_func
=s
->method
->ssl_connect
;
1602 /* clear the current cipher */
1603 ssl_clear_cipher_ctx(s
);
1606 int ssl_undefined_function(SSL
*s
)
1608 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1612 SSL_METHOD
*ssl_bad_method(int ver
)
1614 SSLerr(SSL_F_SSL_BAD_METHOD
,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
1618 const char *SSL_get_version(SSL
*s
)
1620 if (s
->version
== TLS1_VERSION
)
1622 else if (s
->version
== SSL3_VERSION
)
1624 else if (s
->version
== SSL2_VERSION
)
1630 SSL
*SSL_dup(SSL
*s
)
1632 STACK_OF(X509_NAME
) *sk
;
1637 if ((ret
=SSL_new(SSL_get_SSL_CTX(s
))) == NULL
)
1640 if (s
->session
!= NULL
)
1642 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1643 SSL_copy_session_id(ret
,s
);
1647 /* No session has been established yet, so we have to expect
1648 * that s->cert or ret->cert will be changed later --
1649 * they should not both point to the same object,
1650 * and thus we can't use SSL_copy_session_id. */
1652 ret
->method
= s
->method
;
1653 ret
->method
->ssl_new(ret
);
1655 if (s
->cert
!= NULL
)
1657 ret
->cert
= ssl_cert_dup(s
->cert
);
1658 if (ret
->cert
== NULL
)
1662 SSL_set_session_id_context(ret
,
1663 s
->sid_ctx
, s
->sid_ctx_length
);
1666 SSL_set_read_ahead(ret
,SSL_get_read_ahead(s
));
1667 SSL_set_verify(ret
,SSL_get_verify_mode(s
),
1668 SSL_get_verify_callback(s
));
1669 SSL_set_verify_depth(ret
,SSL_get_verify_depth(s
));
1671 SSL_set_info_callback(ret
,SSL_get_info_callback(s
));
1673 ret
->debug
=s
->debug
;
1674 ret
->options
=s
->options
;
1676 /* copy app data, a little dangerous perhaps */
1677 if (!CRYPTO_dup_ex_data(ssl_meth
,&ret
->ex_data
,&s
->ex_data
))
1680 /* setup rbio, and wbio */
1681 if (s
->rbio
!= NULL
)
1683 if (!BIO_dup_state(s
->rbio
,(char *)&ret
->rbio
))
1686 if (s
->wbio
!= NULL
)
1688 if (s
->wbio
!= s
->rbio
)
1690 if (!BIO_dup_state(s
->wbio
,(char *)&ret
->wbio
))
1694 ret
->wbio
=ret
->rbio
;
1697 /* dup the cipher_list and cipher_list_by_id stacks */
1698 if (s
->cipher_list
!= NULL
)
1700 if ((ret
->cipher_list
=sk_SSL_CIPHER_dup(s
->cipher_list
)) == NULL
)
1703 if (s
->cipher_list_by_id
!= NULL
)
1704 if ((ret
->cipher_list_by_id
=sk_SSL_CIPHER_dup(s
->cipher_list_by_id
))
1708 /* Dup the client_CA list */
1709 if (s
->client_CA
!= NULL
)
1711 if ((sk
=sk_X509_NAME_dup(s
->client_CA
)) == NULL
) goto err
;
1713 for (i
=0; i
<sk_X509_NAME_num(sk
); i
++)
1715 xn
=sk_X509_NAME_value(sk
,i
);
1716 if (sk_X509_NAME_set(sk
,i
,X509_NAME_dup(xn
)) == NULL
)
1724 ret
->shutdown
=s
->shutdown
;
1725 ret
->state
=s
->state
;
1726 ret
->handshake_func
=s
->handshake_func
;
1727 ret
->server
=s
->server
;
1732 if (ret
!= NULL
) SSL_free(ret
);
1738 void ssl_clear_cipher_ctx(SSL
*s
)
1740 if (s
->enc_read_ctx
!= NULL
)
1742 EVP_CIPHER_CTX_cleanup(s
->enc_read_ctx
);
1743 Free(s
->enc_read_ctx
);
1744 s
->enc_read_ctx
=NULL
;
1746 if (s
->enc_write_ctx
!= NULL
)
1748 EVP_CIPHER_CTX_cleanup(s
->enc_write_ctx
);
1749 Free(s
->enc_write_ctx
);
1750 s
->enc_write_ctx
=NULL
;
1752 if (s
->expand
!= NULL
)
1754 COMP_CTX_free(s
->expand
);
1757 if (s
->compress
!= NULL
)
1759 COMP_CTX_free(s
->compress
);
1764 /* Fix this function so that it takes an optional type parameter */
1765 X509
*SSL_get_certificate(SSL
*s
)
1767 if (s
->cert
!= NULL
)
1768 return(s
->cert
->key
->x509
);
1773 /* Fix this function so that it takes an optional type parameter */
1774 EVP_PKEY
*SSL_get_privatekey(SSL
*s
)
1776 if (s
->cert
!= NULL
)
1777 return(s
->cert
->key
->privatekey
);
1782 SSL_CIPHER
*SSL_get_current_cipher(SSL
*s
)
1784 if ((s
->session
!= NULL
) && (s
->session
->cipher
!= NULL
))
1785 return(s
->session
->cipher
);
1789 int ssl_init_wbio_buffer(SSL
*s
,int push
)
1793 if (s
->bbio
== NULL
)
1795 bbio
=BIO_new(BIO_f_buffer());
1796 if (bbio
== NULL
) return(0);
1802 if (s
->bbio
== s
->wbio
)
1803 s
->wbio
=BIO_pop(s
->wbio
);
1805 (void)BIO_reset(bbio
);
1806 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
1807 if (!BIO_set_read_buffer_size(bbio
,1))
1809 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER
,ERR_R_BUF_LIB
);
1814 if (s
->wbio
!= bbio
)
1815 s
->wbio
=BIO_push(bbio
,s
->wbio
);
1819 if (s
->wbio
== bbio
)
1820 s
->wbio
=BIO_pop(bbio
);
1825 void ssl_free_wbio_buffer(SSL
*s
)
1829 if (s
->bbio
== NULL
) return;
1831 if (s
->bbio
== s
->wbio
)
1833 /* remove buffering */
1834 under
=BIO_pop(s
->wbio
);
1844 void SSL_CTX_set_quiet_shutdown(SSL_CTX
*ctx
,int mode
)
1846 ctx
->quiet_shutdown
=mode
;
1849 int SSL_CTX_get_quiet_shutdown(SSL_CTX
*ctx
)
1851 return(ctx
->quiet_shutdown
);
1854 void SSL_set_quiet_shutdown(SSL
*s
,int mode
)
1856 s
->quiet_shutdown
=mode
;
1859 int SSL_get_quiet_shutdown(SSL
*s
)
1861 return(s
->quiet_shutdown
);
1864 void SSL_set_shutdown(SSL
*s
,int mode
)
1869 int SSL_get_shutdown(SSL
*s
)
1871 return(s
->shutdown
);
1874 int SSL_version(SSL
*s
)
1879 SSL_CTX
*SSL_get_SSL_CTX(SSL
*ssl
)
1885 int SSL_CTX_set_default_verify_paths(SSL_CTX
*ctx
)
1887 return(X509_STORE_set_default_paths(ctx
->cert_store
));
1890 int SSL_CTX_load_verify_locations(SSL_CTX
*ctx
, const char *CAfile
,
1893 return(X509_STORE_load_locations(ctx
->cert_store
,CAfile
,CApath
));
1897 void SSL_set_info_callback(SSL
*ssl
,void (*cb
)())
1899 ssl
->info_callback
=cb
;
1902 void (*SSL_get_info_callback(SSL
*ssl
))(void)
1904 return((void (*)())ssl
->info_callback
);
1907 int SSL_state(SSL
*ssl
)
1912 void SSL_set_verify_result(SSL
*ssl
,long arg
)
1914 ssl
->verify_result
=arg
;
1917 long SSL_get_verify_result(SSL
*ssl
)
1919 return(ssl
->verify_result
);
1922 int SSL_get_ex_new_index(long argl
,void *argp
,CRYPTO_EX_new
*new_func
,
1923 CRYPTO_EX_dup
*dup_func
,CRYPTO_EX_free
*free_func
)
1926 return(CRYPTO_get_ex_new_index(ssl_meth_num
-1,
1927 &ssl_meth
,argl
,argp
,new_func
,dup_func
,free_func
));
1930 int SSL_set_ex_data(SSL
*s
,int idx
,void *arg
)
1932 return(CRYPTO_set_ex_data(&s
->ex_data
,idx
,arg
));
1935 void *SSL_get_ex_data(SSL
*s
,int idx
)
1937 return(CRYPTO_get_ex_data(&s
->ex_data
,idx
));
1940 int SSL_CTX_get_ex_new_index(long argl
,void *argp
,CRYPTO_EX_new
*new_func
,
1941 CRYPTO_EX_dup
*dup_func
,CRYPTO_EX_free
*free_func
)
1944 return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num
-1,
1945 &ssl_ctx_meth
,argl
,argp
,new_func
,dup_func
,free_func
));
1948 int SSL_CTX_set_ex_data(SSL_CTX
*s
,int idx
,void *arg
)
1950 return(CRYPTO_set_ex_data(&s
->ex_data
,idx
,arg
));
1953 void *SSL_CTX_get_ex_data(SSL_CTX
*s
,int idx
)
1955 return(CRYPTO_get_ex_data(&s
->ex_data
,idx
));
1963 X509_STORE
*SSL_CTX_get_cert_store(SSL_CTX
*ctx
)
1965 return(ctx
->cert_store
);
1968 void SSL_CTX_set_cert_store(SSL_CTX
*ctx
,X509_STORE
*store
)
1970 if (ctx
->cert_store
!= NULL
)
1971 X509_STORE_free(ctx
->cert_store
);
1972 ctx
->cert_store
=store
;
1975 int SSL_want(SSL
*s
)
1981 * \brief Set the callback for generating temporary RSA keys.
1982 * \param ctx the SSL context.
1983 * \param cb the callback
1987 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX
*ctx
,RSA
*(*cb
)(SSL
*ssl
,
1991 union rsa_fn_to_char_u rsa_tmp_cb
;
1993 rsa_tmp_cb
.fn_p
= cb
;
1994 SSL_CTX_ctrl(ctx
,SSL_CTRL_SET_TMP_RSA_CB
,0,rsa_tmp_cb
.char_p
);
1999 void SSL_set_tmp_rsa_callback(SSL
*ssl
,RSA
*(*cb
)(SSL
*ssl
,int is_export
,
2002 union rsa_fn_to_char_u rsa_tmp_cb
;
2004 rsa_tmp_cb
.fn_p
= cb
;
2005 SSL_ctrl(ssl
,SSL_CTRL_SET_TMP_RSA_CB
,0,rsa_tmp_cb
.char_p
);
2011 * \brief The RSA temporary key callback function.
2012 * \param ssl the SSL session.
2013 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2014 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2015 * of the required key in bits.
2016 * \return the temporary RSA key.
2017 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2020 RSA
*cb(SSL
*ssl
,int is_export
,int keylength
)
2025 * \brief Set the callback for generating temporary DH keys.
2026 * \param ctx the SSL context.
2027 * \param dh the callback
2031 void SSL_CTX_set_tmp_dh_callback(SSL_CTX
*ctx
,DH
*(*dh
)(SSL
*ssl
,int is_export
,
2034 union dh_fn_to_char_u dh_tmp_cb
;
2036 dh_tmp_cb
.fn_p
= dh
;
2037 SSL_CTX_ctrl(ctx
,SSL_CTRL_SET_TMP_DH_CB
,0,dh_tmp_cb
.char_p
);
2040 void SSL_set_tmp_dh_callback(SSL
*ssl
,DH
*(*dh
)(SSL
*ssl
,int is_export
,
2043 union dh_fn_to_char_u dh_tmp_cb
;
2045 dh_tmp_cb
.fn_p
= dh
;
2046 SSL_ctrl(ssl
,SSL_CTRL_SET_TMP_DH_CB
,0,dh_tmp_cb
.char_p
);
2050 #if defined(_WINDLL) && defined(WIN16)
2051 #include "../crypto/bio/bss_file.c"
2054 IMPLEMENT_STACK_OF(SSL_CIPHER
)
2055 IMPLEMENT_STACK_OF(SSL_COMP
)