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>
66 char *SSL_version_str=OPENSSL_VERSION_TEXT;
68 static STACK *ssl_meth=NULL;
69 static STACK *ssl_ctx_meth=NULL;
70 static int ssl_meth_num=0;
71 static int ssl_ctx_meth_num=0;
73 OPENSSL_GLOBAL SSL3_ENC_METHOD ssl3_undef_enc_method={
74 ssl_undefined_function,
75 ssl_undefined_function,
76 ssl_undefined_function,
77 ssl_undefined_function,
78 ssl_undefined_function,
79 ssl_undefined_function,
86 if (s->method == NULL)
88 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
97 /* This is set if we are doing dynamic renegotiation so keep
98 * the old cipher. It is sort of a SSL_clear_lite :-) */
99 if (s->new_session) return(1);
102 state=s->state; /* Keep to check if we throw away the session-id */
105 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
107 s->version=s->method->version;
108 s->client_version=s->version;
109 s->rwstate=SSL_NOTHING;
110 s->rstate=SSL_ST_READ_HEADER;
111 s->read_ahead=s->ctx->read_ahead;
113 if (s->init_buf != NULL)
115 BUF_MEM_free(s->init_buf);
119 ssl_clear_cipher_ctx(s);
121 if (ssl_clear_bad_session(s))
123 SSL_SESSION_free(s->session);
130 /* Check to see if we were changed into a different method, if
131 * so, revert back if we are not doing session-id reuse. */
132 if ((s->session == NULL) && (s->method != s->ctx->method))
134 s->method->ssl_free(s);
135 s->method=s->ctx->method;
136 if (!s->method->ssl_new(s))
141 s->method->ssl_clear(s);
145 /** Used to change an SSL_CTXs default SSL method type */
146 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth)
148 STACK_OF(SSL_CIPHER) *sk;
152 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
153 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
154 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
156 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
162 SSL *SSL_new(SSL_CTX *ctx)
168 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
171 if (ctx->method == NULL)
173 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
177 s=(SSL *)Malloc(sizeof(SSL));
178 if (s == NULL) goto err;
179 memset(s,0,sizeof(SSL));
181 if (ctx->cert != NULL)
183 /* Earlier library versions used to copy the pointer to
184 * the CERT, not its contents; only when setting new
185 * parameters for the per-SSL copy, ssl_cert_new would be
186 * called (and the direct reference to the per-SSL_CTX
187 * settings would be lost, but those still were indirectly
188 * accessed for various purposes, and for that reason they
189 * used to be known as s->ctx->default_cert).
190 * Now we don't look at the SSL_CTX's CERT after having
191 * duplicated it once. */
193 s->cert = ssl_cert_dup(ctx->cert);
198 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
199 s->sid_ctx_length=ctx->sid_ctx_length;
200 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
201 s->verify_mode=ctx->verify_mode;
202 s->verify_depth=ctx->verify_depth;
203 s->verify_callback=ctx->default_verify_callback;
204 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
207 s->verify_result=X509_V_OK;
209 s->method=ctx->method;
211 if (!s->method->ssl_new(s))
214 s->quiet_shutdown=ctx->quiet_shutdown;
216 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
217 s->options=ctx->options;
221 CRYPTO_new_ex_data(ssl_meth,(char *)s,&s->ex_data);
228 ssl_cert_free(s->cert);
230 SSL_CTX_free(s->ctx); /* decrement reference count */
233 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
237 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
238 unsigned int sid_ctx_len)
240 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
242 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
245 ctx->sid_ctx_length=sid_ctx_len;
246 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
251 int SSL_set_session_id_context(SSL *ssl,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_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
259 ssl->sid_ctx_length=sid_ctx_len;
260 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
265 void SSL_free(SSL *s)
272 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
280 fprintf(stderr,"SSL_free, bad reference count\n");
285 CRYPTO_free_ex_data(ssl_meth,(char *)s,&s->ex_data);
289 /* If the buffering BIO is in place, pop it off */
290 if (s->bbio == s->wbio)
292 s->wbio=BIO_pop(s->wbio);
298 BIO_free_all(s->rbio);
299 if ((s->wbio != NULL) && (s->wbio != s->rbio))
300 BIO_free_all(s->wbio);
302 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
304 /* add extra stuff */
305 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
306 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
308 /* Make the next call work :-) */
309 if (s->session != NULL)
311 ssl_clear_bad_session(s);
312 SSL_SESSION_free(s->session);
315 ssl_clear_cipher_ctx(s);
317 if (s->cert != NULL) ssl_cert_free(s->cert);
318 /* Free up if allocated */
320 if (s->ctx) SSL_CTX_free(s->ctx);
322 if (s->client_CA != NULL)
323 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
325 if (s->method != NULL) s->method->ssl_free(s);
330 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
332 /* If the output buffering BIO is still in place, remove it
336 if (s->wbio == s->bbio)
338 s->wbio=s->wbio->next_bio;
339 s->bbio->next_bio=NULL;
342 if ((s->rbio != NULL) && (s->rbio != rbio))
343 BIO_free_all(s->rbio);
344 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
345 BIO_free_all(s->wbio);
350 BIO *SSL_get_rbio(SSL *s)
353 BIO *SSL_get_wbio(SSL *s)
356 int SSL_get_fd(SSL *s)
362 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
369 int SSL_set_fd(SSL *s,int fd)
374 bio=BIO_new(BIO_s_socket());
378 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
381 BIO_set_fd(bio,fd,BIO_NOCLOSE);
382 SSL_set_bio(s,bio,bio);
388 int SSL_set_wfd(SSL *s,int fd)
393 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
394 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
396 bio=BIO_new(BIO_s_socket());
399 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
400 BIO_set_fd(bio,fd,BIO_NOCLOSE);
401 SSL_set_bio(s,SSL_get_rbio(s),bio);
404 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
410 int SSL_set_rfd(SSL *s,int fd)
415 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
416 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
418 bio=BIO_new(BIO_s_socket());
422 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
425 BIO_set_fd(bio,fd,BIO_NOCLOSE);
426 SSL_set_bio(s,bio,SSL_get_wbio(s));
429 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
436 int SSL_get_verify_mode(SSL *s)
438 return(s->verify_mode);
441 int SSL_get_verify_depth(SSL *s)
443 return(s->verify_depth);
446 int (*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *)
448 return(s->verify_callback);
451 int SSL_CTX_get_verify_mode(SSL_CTX *ctx)
453 return(ctx->verify_mode);
456 int SSL_CTX_get_verify_depth(SSL_CTX *ctx)
458 return(ctx->verify_depth);
461 int (*SSL_CTX_get_verify_callback(SSL_CTX *ctx))(int,X509_STORE_CTX *)
463 return(ctx->default_verify_callback);
466 void SSL_set_verify(SSL *s,int mode,
467 int (*callback)(int ok,X509_STORE_CTX *ctx))
470 if (callback != NULL)
471 s->verify_callback=callback;
474 void SSL_set_verify_depth(SSL *s,int depth)
476 s->verify_depth=depth;
479 void SSL_set_read_ahead(SSL *s,int yes)
484 int SSL_get_read_ahead(SSL *s)
486 return(s->read_ahead);
489 int SSL_pending(SSL *s)
491 return(s->method->ssl_pending(s));
494 X509 *SSL_get_peer_certificate(SSL *s)
498 if ((s == NULL) || (s->session == NULL))
503 if (r == NULL) return(r);
505 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
510 STACK_OF(X509) *SSL_get_peer_cert_chain(SSL *s)
514 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
517 r=s->session->sess_cert->cert_chain;
522 /* Now in theory, since the calling process own 't' it should be safe to
523 * modify. We need to be able to read f without being hassled */
524 void SSL_copy_session_id(SSL *t,SSL *f)
528 /* Do we need to to SSL locking? */
529 SSL_set_session(t,SSL_get_session(f));
531 /* what if we are setup as SSLv2 but want to talk SSLv3 or
533 if (t->method != f->method)
535 t->method->ssl_free(t); /* cleanup current */
536 t->method=f->method; /* change method */
537 t->method->ssl_new(t); /* setup new */
543 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
548 if (tmp != NULL) ssl_cert_free(tmp);
549 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
552 /* Fix this so it checks all the valid key/cert options */
553 int SSL_CTX_check_private_key(SSL_CTX *ctx)
555 if ( (ctx == NULL) ||
556 (ctx->cert == NULL) ||
557 (ctx->cert->key->x509 == NULL))
559 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
562 if (ctx->cert->key->privatekey == NULL)
564 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
567 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
570 /* Fix this function so that it takes an optional type parameter */
571 int SSL_check_private_key(SSL *ssl)
575 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
578 if (ssl->cert == NULL)
579 return(SSL_CTX_check_private_key(ssl->ctx));
580 if (ssl->cert->key->x509 == NULL)
582 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
585 if (ssl->cert->key->privatekey == NULL)
587 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
590 return(X509_check_private_key(ssl->cert->key->x509,
591 ssl->cert->key->privatekey));
594 int SSL_accept(SSL *s)
596 if (s->handshake_func == 0)
597 /* Not properly initialized yet */
598 SSL_set_accept_state(s);
600 return(s->method->ssl_accept(s));
603 int SSL_connect(SSL *s)
605 if (s->handshake_func == 0)
606 /* Not properly initialized yet */
607 SSL_set_connect_state(s);
609 return(s->method->ssl_connect(s));
612 long SSL_get_default_timeout(SSL *s)
614 return(s->method->get_timeout());
617 int SSL_read(SSL *s,char *buf,int num)
619 if (s->handshake_func == 0)
621 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
625 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
627 s->rwstate=SSL_NOTHING;
630 return(s->method->ssl_read(s,buf,num));
633 int SSL_peek(SSL *s,char *buf,int num)
635 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
639 return(s->method->ssl_peek(s,buf,num));
642 int SSL_write(SSL *s,const char *buf,int num)
644 if (s->handshake_func == 0)
646 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
650 if (s->shutdown & SSL_SENT_SHUTDOWN)
652 s->rwstate=SSL_NOTHING;
653 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
656 return(s->method->ssl_write(s,buf,num));
659 int SSL_shutdown(SSL *s)
661 /* Note that this function behaves differently from what one might
662 * expect. Return values are 0 for no success (yet),
663 * 1 for success; but calling it once is usually not enough,
664 * even if blocking I/O is used (see ssl3_shutdown).
667 if (s->handshake_func == 0)
669 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
673 if ((s != NULL) && !SSL_in_init(s))
674 return(s->method->ssl_shutdown(s));
679 int SSL_renegotiate(SSL *s)
682 return(s->method->ssl_renegotiate(s));
685 long SSL_ctrl(SSL *s,int cmd,long larg,char *parg)
691 case SSL_CTRL_GET_READ_AHEAD:
692 return(s->read_ahead);
693 case SSL_CTRL_SET_READ_AHEAD:
697 case SSL_CTRL_OPTIONS:
698 return(s->options|=larg);
700 return(s->mode|=larg);
702 return(s->method->ssl_ctrl(s,cmd,larg,parg));
706 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg)
712 case SSL_CTRL_GET_READ_AHEAD:
713 return(ctx->read_ahead);
714 case SSL_CTRL_SET_READ_AHEAD:
716 ctx->read_ahead=larg;
719 case SSL_CTRL_SET_SESS_CACHE_SIZE:
720 l=ctx->session_cache_size;
721 ctx->session_cache_size=larg;
723 case SSL_CTRL_GET_SESS_CACHE_SIZE:
724 return(ctx->session_cache_size);
725 case SSL_CTRL_SET_SESS_CACHE_MODE:
726 l=ctx->session_cache_mode;
727 ctx->session_cache_mode=larg;
729 case SSL_CTRL_GET_SESS_CACHE_MODE:
730 return(ctx->session_cache_mode);
732 case SSL_CTRL_SESS_NUMBER:
733 return(ctx->sessions->num_items);
734 case SSL_CTRL_SESS_CONNECT:
735 return(ctx->stats.sess_connect);
736 case SSL_CTRL_SESS_CONNECT_GOOD:
737 return(ctx->stats.sess_connect_good);
738 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
739 return(ctx->stats.sess_connect_renegotiate);
740 case SSL_CTRL_SESS_ACCEPT:
741 return(ctx->stats.sess_accept);
742 case SSL_CTRL_SESS_ACCEPT_GOOD:
743 return(ctx->stats.sess_accept_good);
744 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
745 return(ctx->stats.sess_accept_renegotiate);
746 case SSL_CTRL_SESS_HIT:
747 return(ctx->stats.sess_hit);
748 case SSL_CTRL_SESS_CB_HIT:
749 return(ctx->stats.sess_cb_hit);
750 case SSL_CTRL_SESS_MISSES:
751 return(ctx->stats.sess_miss);
752 case SSL_CTRL_SESS_TIMEOUTS:
753 return(ctx->stats.sess_timeout);
754 case SSL_CTRL_SESS_CACHE_FULL:
755 return(ctx->stats.sess_cache_full);
756 case SSL_CTRL_OPTIONS:
757 return(ctx->options|=larg);
759 return(ctx->mode|=larg);
761 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
765 int ssl_cipher_id_cmp(SSL_CIPHER *a,SSL_CIPHER *b)
773 return((l > 0)?1:-1);
776 int ssl_cipher_ptr_id_cmp(SSL_CIPHER **ap,SSL_CIPHER **bp)
780 l=(*ap)->id-(*bp)->id;
784 return((l > 0)?1:-1);
787 /** return a STACK of the ciphers available for the SSL and in order of
789 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s)
791 if ((s != NULL) && (s->cipher_list != NULL))
793 return(s->cipher_list);
795 else if ((s->ctx != NULL) &&
796 (s->ctx->cipher_list != NULL))
798 return(s->ctx->cipher_list);
803 /** return a STACK of the ciphers available for the SSL and in order of
805 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
807 if ((s != NULL) && (s->cipher_list_by_id != NULL))
809 return(s->cipher_list_by_id);
811 else if ((s != NULL) && (s->ctx != NULL) &&
812 (s->ctx->cipher_list_by_id != NULL))
814 return(s->ctx->cipher_list_by_id);
819 /** The old interface to get the same thing as SSL_get_ciphers() */
820 const char *SSL_get_cipher_list(SSL *s,int n)
823 STACK_OF(SSL_CIPHER) *sk;
825 if (s == NULL) return(NULL);
826 sk=SSL_get_ciphers(s);
827 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
829 c=sk_SSL_CIPHER_value(sk,n);
830 if (c == NULL) return(NULL);
834 /** specify the ciphers to be used by defaut by the SSL_CTX */
835 int SSL_CTX_set_cipher_list(SSL_CTX *ctx,char *str)
837 STACK_OF(SSL_CIPHER) *sk;
839 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
840 &ctx->cipher_list_by_id,str);
842 return((sk == NULL)?0:1);
845 /** specify the ciphers to be used by the SSL */
846 int SSL_set_cipher_list(SSL *s,char *str)
848 STACK_OF(SSL_CIPHER) *sk;
850 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
851 &s->cipher_list_by_id,str);
853 return((sk == NULL)?0:1);
856 /* works well for SSLv2, not so good for SSLv3 */
857 char *SSL_get_shared_ciphers(SSL *s,char *buf,int len)
861 STACK_OF(SSL_CIPHER) *sk;
865 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
870 sk=s->session->ciphers;
871 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
873 /* Decrement for either the ':' or a '\0' */
875 c=sk_SSL_CIPHER_value(sk,i);
876 for (cp=c->name; *cp; )
892 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
898 if (sk == NULL) return(0);
901 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
903 c=sk_SSL_CIPHER_value(sk,i);
904 j=ssl_put_cipher_by_char(s,c,p);
910 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
911 STACK_OF(SSL_CIPHER) **skp)
914 STACK_OF(SSL_CIPHER) *sk;
917 n=ssl_put_cipher_by_char(s,NULL,NULL);
920 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
923 if ((skp == NULL) || (*skp == NULL))
924 sk=sk_SSL_CIPHER_new(NULL); /* change perhaps later */
928 sk_SSL_CIPHER_zero(sk);
931 for (i=0; i<num; i+=n)
933 c=ssl_get_cipher_by_char(s,p);
937 if (!sk_SSL_CIPHER_push(sk,c))
939 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
949 if ((skp == NULL) || (*skp == NULL))
950 sk_SSL_CIPHER_free(sk);
954 unsigned long SSL_SESSION_hash(SSL_SESSION *a)
959 ((unsigned int) a->session_id[0] )|
960 ((unsigned int) a->session_id[1]<< 8L)|
961 ((unsigned long)a->session_id[2]<<16L)|
962 ((unsigned long)a->session_id[3]<<24L);
966 int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
968 if (a->ssl_version != b->ssl_version)
970 if (a->session_id_length != b->session_id_length)
972 return(memcmp(a->session_id,b->session_id,a->session_id_length));
975 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
981 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
985 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
987 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
990 ret=(SSL_CTX *)Malloc(sizeof(SSL_CTX));
994 memset(ret,0,sizeof(SSL_CTX));
998 ret->cert_store=NULL;
999 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1000 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1001 ret->session_cache_head=NULL;
1002 ret->session_cache_tail=NULL;
1004 /* We take the system default */
1005 ret->session_timeout=meth->get_timeout();
1007 ret->new_session_cb=NULL;
1008 ret->remove_session_cb=NULL;
1009 ret->get_session_cb=NULL;
1011 memset((char *)&ret->stats,0,sizeof(ret->stats));
1014 ret->quiet_shutdown=0;
1016 /* ret->cipher=NULL;*/
1017 /* ret->s2->challenge=NULL;
1018 ret->master_key=NULL;
1020 ret->s2->conn_id=NULL; */
1022 ret->info_callback=NULL;
1024 ret->app_verify_callback=NULL;
1025 ret->app_verify_arg=NULL;
1028 ret->verify_mode=SSL_VERIFY_NONE;
1029 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1030 ret->default_verify_callback=NULL;
1031 if ((ret->cert=ssl_cert_new()) == NULL)
1034 ret->default_passwd_callback=NULL;
1035 ret->default_passwd_callback_userdata=NULL;
1036 ret->client_cert_cb=NULL;
1038 ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp);
1039 if (ret->sessions == NULL) goto err;
1040 ret->cert_store=X509_STORE_new();
1041 if (ret->cert_store == NULL) goto err;
1043 ssl_create_cipher_list(ret->method,
1044 &ret->cipher_list,&ret->cipher_list_by_id,
1045 SSL_DEFAULT_CIPHER_LIST);
1046 if (ret->cipher_list == NULL
1047 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1049 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1053 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1055 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1058 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1060 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1063 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1065 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1069 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1072 CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data);
1074 ret->extra_certs=NULL;
1075 ret->comp_methods=SSL_COMP_get_compression_methods();
1079 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1081 if (ret != NULL) SSL_CTX_free(ret);
1085 static void SSL_COMP_free(SSL_COMP *comp)
1088 void SSL_CTX_free(SSL_CTX *a)
1092 if (a == NULL) return;
1094 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1096 REF_PRINT("SSL_CTX",a);
1102 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1106 CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data);
1108 if (a->sessions != NULL)
1110 SSL_CTX_flush_sessions(a,0);
1111 lh_free(a->sessions);
1113 if (a->cert_store != NULL)
1114 X509_STORE_free(a->cert_store);
1115 if (a->cipher_list != NULL)
1116 sk_SSL_CIPHER_free(a->cipher_list);
1117 if (a->cipher_list_by_id != NULL)
1118 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1119 if (a->cert != NULL)
1120 ssl_cert_free(a->cert);
1121 if (a->client_CA != NULL)
1122 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1123 if (a->extra_certs != NULL)
1124 sk_X509_pop_free(a->extra_certs,X509_free);
1125 if (a->comp_methods != NULL)
1126 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1130 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1132 ctx->default_passwd_callback=cb;
1135 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1137 ctx->default_passwd_callback_userdata=u;
1140 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg)
1142 ctx->app_verify_callback=cb;
1143 ctx->app_verify_arg=arg;
1146 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1148 ctx->verify_mode=mode;
1149 ctx->default_verify_callback=cb;
1150 /* This needs cleaning up EAY EAY EAY */
1151 X509_STORE_set_verify_cb_func(ctx->cert_store,cb);
1154 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1156 ctx->verify_depth=depth;
1159 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1162 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1163 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1164 int rsa_tmp_export,dh_tmp_export,kl;
1165 unsigned long mask,emask;
1167 if (c == NULL) return;
1169 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1172 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1173 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1174 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1176 rsa_tmp=rsa_tmp_export=0;
1179 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1180 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1181 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1183 dh_tmp=dh_tmp_export=0;
1186 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1187 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1188 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1189 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1190 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1191 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1192 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1193 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1194 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1195 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1196 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1197 /* FIX THIS EAY EAY EAY */
1198 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1199 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1205 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1206 rsa_tmp,rsa_tmp_export,dh_tmp,
1207 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1210 if (rsa_enc || (rsa_tmp && rsa_sign))
1212 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1216 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1217 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1218 (rsa_enc || rsa_sign || dsa_sign))
1220 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1221 (rsa_enc || rsa_sign || dsa_sign))
1231 if (dh_rsa) mask|=SSL_kDHr;
1232 if (dh_rsa_export) emask|=SSL_kDHr;
1234 if (dh_dsa) mask|=SSL_kDHd;
1235 if (dh_dsa_export) emask|=SSL_kDHd;
1237 if (rsa_enc || rsa_sign)
1249 #ifdef SSL_ALLOW_ADH
1255 c->export_mask=emask;
1259 /* THIS NEEDS CLEANING UP */
1260 X509 *ssl_get_server_send_cert(SSL *s)
1262 unsigned long alg,mask,kalg;
1267 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1268 alg=s->s3->tmp.new_cipher->algorithms;
1269 is_export=SSL_IS_EXPORT(alg);
1270 mask=is_export?c->export_mask:c->mask;
1271 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1273 if (kalg & SSL_kDHr)
1275 else if (kalg & SSL_kDHd)
1277 else if (kalg & SSL_aDSS)
1278 i=SSL_PKEY_DSA_SIGN;
1279 else if (kalg & SSL_aRSA)
1281 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1282 i=SSL_PKEY_RSA_SIGN;
1286 else /* if (kalg & SSL_aNULL) */
1288 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR);
1291 if (c->pkeys[i].x509 == NULL) return(NULL);
1292 return(c->pkeys[i].x509);
1295 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1300 alg=cipher->algorithms;
1303 if ((alg & SSL_aDSS) &&
1304 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1305 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1306 else if (alg & SSL_aRSA)
1308 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1309 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1310 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1311 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1315 else /* if (alg & SSL_aNULL) */
1317 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR);
1322 void ssl_update_cache(SSL *s,int mode)
1326 /* If the session_id_length is 0, we are not supposed to cache it,
1327 * and it would be rather hard to do anyway :-) */
1328 if (s->session->session_id_length == 0) return;
1330 if ((s->ctx->session_cache_mode & mode)
1332 && SSL_CTX_add_session(s->ctx,s->session)
1333 && (s->ctx->new_session_cb != NULL))
1335 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1336 if (!s->ctx->new_session_cb(s,s->session))
1337 SSL_SESSION_free(s->session);
1340 /* auto flush every 255 connections */
1341 i=s->ctx->session_cache_mode;
1342 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1343 ((i & mode) == mode))
1345 if ( (((mode & SSL_SESS_CACHE_CLIENT)
1346 ?s->ctx->stats.sess_connect_good
1347 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1349 SSL_CTX_flush_sessions(s->ctx,time(NULL));
1354 SSL_METHOD *SSL_get_ssl_method(SSL *s)
1359 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1364 if (s->method != meth)
1366 if (s->handshake_func != NULL)
1367 conn=(s->handshake_func == s->method->ssl_connect);
1369 if (s->method->version == meth->version)
1373 s->method->ssl_free(s);
1375 ret=s->method->ssl_new(s);
1379 s->handshake_func=meth->ssl_connect;
1381 s->handshake_func=meth->ssl_accept;
1386 int SSL_get_error(SSL *s,int i)
1392 if (i > 0) return(SSL_ERROR_NONE);
1394 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1395 * etc, where we do encode the error */
1396 if ((l=ERR_peek_error()) != 0)
1398 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1399 return(SSL_ERROR_SYSCALL);
1401 return(SSL_ERROR_SSL);
1404 if ((i < 0) && SSL_want_read(s))
1406 bio=SSL_get_rbio(s);
1407 if (BIO_should_read(bio))
1408 return(SSL_ERROR_WANT_READ);
1409 else if (BIO_should_write(bio))
1410 /* This one doesn't make too much sense ... We never try
1411 * to write to the rbio, and an application program where
1412 * rbio and wbio are separate couldn't even know what it
1414 * However if we ever set s->rwstate incorrectly
1415 * (so that we have SSL_want_read(s) instead of
1416 * SSL_want_write(s)) and rbio and wbio *are* the same,
1417 * this test works around that bug; so it might be safer
1419 return(SSL_ERROR_WANT_WRITE);
1420 else if (BIO_should_io_special(bio))
1422 reason=BIO_get_retry_reason(bio);
1423 if (reason == BIO_RR_CONNECT)
1424 return(SSL_ERROR_WANT_CONNECT);
1426 return(SSL_ERROR_SYSCALL); /* unknown */
1430 if ((i < 0) && SSL_want_write(s))
1432 bio=SSL_get_wbio(s);
1433 if (BIO_should_write(bio))
1434 return(SSL_ERROR_WANT_WRITE);
1435 else if (BIO_should_read(bio))
1436 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1437 return(SSL_ERROR_WANT_READ);
1438 else if (BIO_should_io_special(bio))
1440 reason=BIO_get_retry_reason(bio);
1441 if (reason == BIO_RR_CONNECT)
1442 return(SSL_ERROR_WANT_CONNECT);
1444 return(SSL_ERROR_SYSCALL);
1447 if ((i < 0) && SSL_want_x509_lookup(s))
1449 return(SSL_ERROR_WANT_X509_LOOKUP);
1454 if (s->version == SSL2_VERSION)
1456 /* assume it is the socket being closed */
1457 return(SSL_ERROR_ZERO_RETURN);
1461 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1462 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1463 return(SSL_ERROR_ZERO_RETURN);
1466 return(SSL_ERROR_SYSCALL);
1469 int SSL_do_handshake(SSL *s)
1473 if (s->handshake_func == NULL)
1475 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1479 s->method->ssl_renegotiate_check(s);
1481 if (SSL_in_init(s) || SSL_in_before(s))
1483 ret=s->handshake_func(s);
1488 /* For the next 2 functions, SSL_clear() sets shutdown and so
1489 * one of these calls will reset it */
1490 void SSL_set_accept_state(SSL *s)
1494 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1495 s->handshake_func=s->method->ssl_accept;
1496 /* clear the current cipher */
1497 ssl_clear_cipher_ctx(s);
1500 void SSL_set_connect_state(SSL *s)
1504 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1505 s->handshake_func=s->method->ssl_connect;
1506 /* clear the current cipher */
1507 ssl_clear_cipher_ctx(s);
1510 int ssl_undefined_function(SSL *s)
1512 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1516 SSL_METHOD *ssl_bad_method(int ver)
1518 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1522 char *SSL_get_version(SSL *s)
1524 if (s->version == TLS1_VERSION)
1526 else if (s->version == SSL3_VERSION)
1528 else if (s->version == SSL2_VERSION)
1534 SSL *SSL_dup(SSL *s)
1536 STACK_OF(X509_NAME) *sk;
1541 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
1544 if (s->session != NULL)
1546 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1547 SSL_copy_session_id(ret,s);
1551 /* No session has been established yet, so we have to expect
1552 * that s->cert or ret->cert will be changed later --
1553 * they should not both point to the same object,
1554 * and thus we can't use SSL_copy_session_id. */
1556 ret->method = s->method;
1557 ret->method->ssl_new(ret);
1559 if (s->cert != NULL)
1561 ret->cert = ssl_cert_dup(s->cert);
1562 if (ret->cert == NULL)
1566 SSL_set_session_id_context(ret,
1567 s->sid_ctx, s->sid_ctx_length);
1570 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1571 SSL_set_verify(ret,SSL_get_verify_mode(s),
1572 SSL_get_verify_callback(s));
1573 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
1575 SSL_set_info_callback(ret,SSL_get_info_callback(s));
1577 ret->debug=s->debug;
1578 ret->options=s->options;
1580 /* copy app data, a little dangerous perhaps */
1581 if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data))
1584 /* setup rbio, and wbio */
1585 if (s->rbio != NULL)
1587 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1590 if (s->wbio != NULL)
1592 if (s->wbio != s->rbio)
1594 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1598 ret->wbio=ret->rbio;
1601 /* dup the cipher_list and cipher_list_by_id stacks */
1602 if (s->cipher_list != NULL)
1604 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
1607 if (s->cipher_list_by_id != NULL)
1608 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
1612 /* Dup the client_CA list */
1613 if (s->client_CA != NULL)
1615 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
1617 for (i=0; i<sk_X509_NAME_num(sk); i++)
1619 xn=sk_X509_NAME_value(sk,i);
1620 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
1628 ret->shutdown=s->shutdown;
1629 ret->state=s->state;
1630 ret->handshake_func=s->handshake_func;
1631 ret->server=s->server;
1636 if (ret != NULL) SSL_free(ret);
1642 void ssl_clear_cipher_ctx(SSL *s)
1644 if (s->enc_read_ctx != NULL)
1646 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
1647 Free(s->enc_read_ctx);
1648 s->enc_read_ctx=NULL;
1650 if (s->enc_write_ctx != NULL)
1652 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
1653 Free(s->enc_write_ctx);
1654 s->enc_write_ctx=NULL;
1656 if (s->expand != NULL)
1658 COMP_CTX_free(s->expand);
1661 if (s->compress != NULL)
1663 COMP_CTX_free(s->compress);
1668 /* Fix this function so that it takes an optional type parameter */
1669 X509 *SSL_get_certificate(SSL *s)
1671 if (s->cert != NULL)
1672 return(s->cert->key->x509);
1677 /* Fix this function so that it takes an optional type parameter */
1678 EVP_PKEY *SSL_get_privatekey(SSL *s)
1680 if (s->cert != NULL)
1681 return(s->cert->key->privatekey);
1686 SSL_CIPHER *SSL_get_current_cipher(SSL *s)
1688 if ((s->session != NULL) && (s->session->cipher != NULL))
1689 return(s->session->cipher);
1693 int ssl_init_wbio_buffer(SSL *s,int push)
1697 if (s->bbio == NULL)
1699 bbio=BIO_new(BIO_f_buffer());
1700 if (bbio == NULL) return(0);
1706 if (s->bbio == s->wbio)
1707 s->wbio=BIO_pop(s->wbio);
1709 (void)BIO_reset(bbio);
1710 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
1711 if (!BIO_set_read_buffer_size(bbio,1))
1713 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
1718 if (s->wbio != bbio)
1719 s->wbio=BIO_push(bbio,s->wbio);
1723 if (s->wbio == bbio)
1724 s->wbio=BIO_pop(bbio);
1729 void ssl_free_wbio_buffer(SSL *s)
1733 if (s->bbio == NULL) return;
1735 if (s->bbio == s->wbio)
1737 /* remove buffering */
1738 under=BIO_pop(s->wbio);
1748 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
1750 ctx->quiet_shutdown=mode;
1753 int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx)
1755 return(ctx->quiet_shutdown);
1758 void SSL_set_quiet_shutdown(SSL *s,int mode)
1760 s->quiet_shutdown=mode;
1763 int SSL_get_quiet_shutdown(SSL *s)
1765 return(s->quiet_shutdown);
1768 void SSL_set_shutdown(SSL *s,int mode)
1773 int SSL_get_shutdown(SSL *s)
1775 return(s->shutdown);
1778 int SSL_version(SSL *s)
1783 SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
1789 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
1791 return(X509_STORE_set_default_paths(ctx->cert_store));
1794 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
1797 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
1801 void SSL_set_info_callback(SSL *ssl,void (*cb)())
1803 ssl->info_callback=cb;
1806 void (*SSL_get_info_callback(SSL *ssl))(void)
1808 return((void (*)())ssl->info_callback);
1811 int SSL_state(SSL *ssl)
1816 void SSL_set_verify_result(SSL *ssl,long arg)
1818 ssl->verify_result=arg;
1821 long SSL_get_verify_result(SSL *ssl)
1823 return(ssl->verify_result);
1826 int SSL_get_ex_new_index(long argl,char *argp,int (*new_func)(),
1827 int (*dup_func)(),void (*free_func)())
1830 return(CRYPTO_get_ex_new_index(ssl_meth_num-1,
1831 &ssl_meth,argl,argp,new_func,dup_func,free_func));
1834 int SSL_set_ex_data(SSL *s,int idx,void *arg)
1836 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1839 void *SSL_get_ex_data(SSL *s,int idx)
1841 return(CRYPTO_get_ex_data(&s->ex_data,idx));
1844 int SSL_CTX_get_ex_new_index(long argl,char *argp,int (*new_func)(),
1845 int (*dup_func)(),void (*free_func)())
1848 return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1,
1849 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func));
1852 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
1854 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1857 void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx)
1859 return(CRYPTO_get_ex_data(&s->ex_data,idx));
1867 X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx)
1869 return(ctx->cert_store);
1872 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
1874 if (ctx->cert_store != NULL)
1875 X509_STORE_free(ctx->cert_store);
1876 ctx->cert_store=store;
1879 int SSL_want(SSL *s)
1885 * \brief Set the callback for generating temporary RSA keys.
1886 * \param ctx the SSL context.
1887 * \param cb the callback
1891 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
1894 { SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,0,(char *)cb); }
1898 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,int is_export,
1900 { SSL_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,0,(char *)cb); }
1905 * \brief The RSA temporary key callback function.
1906 * \param ssl the SSL session.
1907 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
1908 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
1909 * of the required key in bits.
1910 * \return the temporary RSA key.
1911 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
1914 RSA *cb(SSL *ssl,int is_export,int keylength)
1919 * \brief Set the callback for generating temporary DH keys.
1920 * \param ctx the SSL context.
1921 * \param dh the callback
1925 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
1927 { SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,0,(char *)dh); }
1929 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
1931 { SSL_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,0,(char *)dh); }
1934 #if defined(_WINDLL) && defined(WIN16)
1935 #include "../crypto/bio/bss_file.c"
1938 IMPLEMENT_STACK_OF(SSL_CIPHER)
1939 IMPLEMENT_STACK_OF(SSL_COMP)