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.]
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 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)
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_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->default_cert != NULL)
183 CRYPTO_add(&ctx->default_cert->references,1,
184 CRYPTO_LOCK_SSL_CERT);
185 s->cert=ctx->default_cert;
189 s->verify_mode=ctx->verify_mode;
190 s->verify_callback=ctx->default_verify_callback;
191 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
194 s->verify_result=X509_V_OK;
196 s->method=ctx->method;
198 if (!s->method->ssl_new(s))
205 s->quiet_shutdown=ctx->quiet_shutdown;
207 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
208 s->options=ctx->options;
211 CRYPTO_new_ex_data(ssl_meth,(char *)s,&s->ex_data);
215 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
219 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
220 unsigned int sid_ctx_len)
222 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
224 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
227 ssl->sid_ctx_length=sid_ctx_len;
228 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
233 void SSL_free(SSL *s)
240 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
248 fprintf(stderr,"SSL_free, bad reference count\n");
253 CRYPTO_free_ex_data(ssl_meth,(char *)s,&s->ex_data);
257 /* If the buffering BIO is in place, pop it off */
258 if (s->bbio == s->wbio)
260 s->wbio=BIO_pop(s->wbio);
266 BIO_free_all(s->rbio);
267 if ((s->wbio != NULL) && (s->wbio != s->rbio))
268 BIO_free_all(s->wbio);
270 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
272 /* add extra stuff */
273 if (s->cipher_list != NULL) sk_free(s->cipher_list);
274 if (s->cipher_list_by_id != NULL) sk_free(s->cipher_list_by_id);
276 /* Make the next call work :-) */
277 if (s->session != NULL)
279 ssl_clear_bad_session(s);
280 SSL_SESSION_free(s->session);
283 ssl_clear_cipher_ctx(s);
285 if (s->cert != NULL) ssl_cert_free(s->cert);
286 /* Free up if allocated */
288 if (s->ctx) SSL_CTX_free(s->ctx);
290 if (s->client_CA != NULL)
291 sk_pop_free(s->client_CA,X509_NAME_free);
293 if (s->method != NULL) s->method->ssl_free(s);
298 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
300 /* If the output buffering BIO is still in place, remove it
304 if (s->wbio == s->bbio)
306 s->wbio=s->wbio->next_bio;
307 s->bbio->next_bio=NULL;
310 if ((s->rbio != NULL) && (s->rbio != rbio))
311 BIO_free_all(s->rbio);
312 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
313 BIO_free_all(s->wbio);
318 BIO *SSL_get_rbio(SSL *s)
321 BIO *SSL_get_wbio(SSL *s)
324 int SSL_get_fd(SSL *s)
330 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
337 int SSL_set_fd(SSL *s,int fd)
342 bio=BIO_new(BIO_s_socket());
346 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
349 BIO_set_fd(bio,fd,BIO_NOCLOSE);
350 SSL_set_bio(s,bio,bio);
356 int SSL_set_wfd(SSL *s,int fd)
361 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
362 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
364 bio=BIO_new(BIO_s_socket());
367 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
368 BIO_set_fd(bio,fd,BIO_NOCLOSE);
369 SSL_set_bio(s,SSL_get_rbio(s),bio);
372 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
378 int SSL_set_rfd(SSL *s,int fd)
383 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
384 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
386 bio=BIO_new(BIO_s_socket());
390 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
393 BIO_set_fd(bio,fd,BIO_NOCLOSE);
394 SSL_set_bio(s,bio,SSL_get_wbio(s));
397 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
404 int SSL_get_verify_mode(SSL *s)
406 return(s->verify_mode);
409 int (*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *)
411 return(s->verify_callback);
414 int SSL_CTX_get_verify_mode(SSL_CTX *ctx)
416 return(ctx->verify_mode);
419 int (*SSL_CTX_get_verify_callback(SSL_CTX *ctx))(int,X509_STORE_CTX *)
421 return(ctx->default_verify_callback);
424 void SSL_set_verify(SSL *s,int mode,
425 int (*callback)(int ok,X509_STORE_CTX *ctx))
428 if (callback != NULL)
429 s->verify_callback=callback;
432 void SSL_set_read_ahead(SSL *s,int yes)
437 int SSL_get_read_ahead(SSL *s)
439 return(s->read_ahead);
442 int SSL_pending(SSL *s)
444 return(s->method->ssl_pending(s));
447 X509 *SSL_get_peer_certificate(SSL *s)
451 if ((s == NULL) || (s->session == NULL))
456 if (r == NULL) return(r);
458 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
463 STACK *SSL_get_peer_cert_chain(SSL *s)
467 if ((s == NULL) || (s->session == NULL) || (s->session->cert == NULL))
470 r=s->session->cert->cert_chain;
475 /* Now in theory, since the calling process own 't' it should be safe to
476 * modify. We need to be able to read f without being hassled */
477 void SSL_copy_session_id(SSL *t,SSL *f)
481 /* Do we need to to SSL locking? */
482 SSL_set_session(t,SSL_get_session(f));
484 /* what if we are setup as SSLv2 but want to talk SSLv3 or
486 if (t->method != f->method)
488 t->method->ssl_free(t); /* cleanup current */
489 t->method=f->method; /* change method */
490 t->method->ssl_new(t); /* setup new */
496 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
501 if (tmp != NULL) ssl_cert_free(tmp);
502 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
505 /* Fix this so it checks all the valid key/cert options */
506 int SSL_CTX_check_private_key(SSL_CTX *ctx)
508 if ( (ctx == NULL) ||
509 (ctx->default_cert == NULL) ||
510 (ctx->default_cert->key->x509 == NULL))
512 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
515 if (ctx->default_cert->key->privatekey == NULL)
517 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
520 return(X509_check_private_key(ctx->default_cert->key->x509, ctx->default_cert->key->privatekey));
523 /* Fix this function so that it takes an optional type parameter */
524 int SSL_check_private_key(SSL *ssl)
528 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
531 if (ssl->cert == NULL)
532 return(SSL_CTX_check_private_key(ssl->ctx));
533 if (ssl->cert->key->x509 == NULL)
535 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
538 if (ssl->cert->key->privatekey == NULL)
540 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
543 return(X509_check_private_key(ssl->cert->key->x509,
544 ssl->cert->key->privatekey));
547 int SSL_accept(SSL *s)
549 return(s->method->ssl_accept(s));
552 int SSL_connect(SSL *s)
554 return(s->method->ssl_connect(s));
557 long SSL_get_default_timeout(SSL *s)
559 return(s->method->get_timeout());
562 int SSL_read(SSL *s,char *buf,int num)
564 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
566 s->rwstate=SSL_NOTHING;
569 return(s->method->ssl_read(s,buf,num));
572 int SSL_peek(SSL *s,char *buf,int num)
574 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
578 return(s->method->ssl_peek(s,buf,num));
581 int SSL_write(SSL *s,const char *buf,int num)
583 if (s->shutdown & SSL_SENT_SHUTDOWN)
585 s->rwstate=SSL_NOTHING;
586 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
589 return(s->method->ssl_write(s,buf,num));
592 int SSL_shutdown(SSL *s)
594 if ((s != NULL) && !SSL_in_init(s))
595 return(s->method->ssl_shutdown(s));
600 int SSL_renegotiate(SSL *s)
603 return(s->method->ssl_renegotiate(s));
606 long SSL_ctrl(SSL *s,int cmd,long larg,char *parg)
612 case SSL_CTRL_GET_READ_AHEAD:
613 return(s->read_ahead);
614 case SSL_CTRL_SET_READ_AHEAD:
618 case SSL_CTRL_OPTIONS:
619 return(s->options|=larg);
621 return(s->method->ssl_ctrl(s,cmd,larg,parg));
626 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg)
632 case SSL_CTRL_GET_READ_AHEAD:
633 return(ctx->read_ahead);
634 case SSL_CTRL_SET_READ_AHEAD:
636 ctx->read_ahead=larg;
639 case SSL_CTRL_SET_SESS_CACHE_SIZE:
640 l=ctx->session_cache_size;
641 ctx->session_cache_size=larg;
643 case SSL_CTRL_GET_SESS_CACHE_SIZE:
644 return(ctx->session_cache_size);
645 case SSL_CTRL_SET_SESS_CACHE_MODE:
646 l=ctx->session_cache_mode;
647 ctx->session_cache_mode=larg;
649 case SSL_CTRL_GET_SESS_CACHE_MODE:
650 return(ctx->session_cache_mode);
652 case SSL_CTRL_SESS_NUMBER:
653 return(ctx->sessions->num_items);
654 case SSL_CTRL_SESS_CONNECT:
655 return(ctx->stats.sess_connect);
656 case SSL_CTRL_SESS_CONNECT_GOOD:
657 return(ctx->stats.sess_connect_good);
658 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
659 return(ctx->stats.sess_connect_renegotiate);
660 case SSL_CTRL_SESS_ACCEPT:
661 return(ctx->stats.sess_accept);
662 case SSL_CTRL_SESS_ACCEPT_GOOD:
663 return(ctx->stats.sess_accept_good);
664 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
665 return(ctx->stats.sess_accept_renegotiate);
666 case SSL_CTRL_SESS_HIT:
667 return(ctx->stats.sess_hit);
668 case SSL_CTRL_SESS_CB_HIT:
669 return(ctx->stats.sess_cb_hit);
670 case SSL_CTRL_SESS_MISSES:
671 return(ctx->stats.sess_miss);
672 case SSL_CTRL_SESS_TIMEOUTS:
673 return(ctx->stats.sess_timeout);
674 case SSL_CTRL_SESS_CACHE_FULL:
675 return(ctx->stats.sess_cache_full);
676 case SSL_CTRL_OPTIONS:
677 return(ctx->options|=larg);
679 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
684 int ssl_cipher_id_cmp(SSL_CIPHER *a,SSL_CIPHER *b)
692 return((l > 0)?1:-1);
695 int ssl_cipher_ptr_id_cmp(SSL_CIPHER **ap,SSL_CIPHER **bp)
699 l=(*ap)->id-(*bp)->id;
703 return((l > 0)?1:-1);
706 /** return a STACK of the ciphers available for the SSL and in order of
708 STACK *SSL_get_ciphers(SSL *s)
710 if ((s != NULL) && (s->cipher_list != NULL))
712 return(s->cipher_list);
714 else if ((s->ctx != NULL) &&
715 (s->ctx->cipher_list != NULL))
717 return(s->ctx->cipher_list);
722 /** return a STACK of the ciphers available for the SSL and in order of
724 STACK *ssl_get_ciphers_by_id(SSL *s)
726 if ((s != NULL) && (s->cipher_list_by_id != NULL))
728 return(s->cipher_list_by_id);
730 else if ((s != NULL) && (s->ctx != NULL) &&
731 (s->ctx->cipher_list_by_id != NULL))
733 return(s->ctx->cipher_list_by_id);
738 /** The old interface to get the same thing as SSL_get_ciphers() */
739 char *SSL_get_cipher_list(SSL *s,int n)
744 if (s == NULL) return(NULL);
745 sk=SSL_get_ciphers(s);
746 if ((sk == NULL) || (sk_num(sk) <= n))
748 c=(SSL_CIPHER *)sk_value(sk,n);
749 if (c == NULL) return(NULL);
753 /** specify the ciphers to be used by defaut by the SSL_CTX */
754 int SSL_CTX_set_cipher_list(SSL_CTX *ctx,char *str)
758 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
759 &ctx->cipher_list_by_id,str);
761 return((sk == NULL)?0:1);
764 /** specify the ciphers to be used by the SSL */
765 int SSL_set_cipher_list(SSL *s,char *str)
769 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
770 &s->cipher_list_by_id,str);
772 return((sk == NULL)?0:1);
775 /* works well for SSLv2, not so good for SSLv3 */
776 char *SSL_get_shared_ciphers(SSL *s,char *buf,int len)
783 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
788 sk=s->session->ciphers;
789 for (i=0; i<sk_num(sk); i++)
791 /* Decrement for either the ':' or a '\0' */
793 c=(SSL_CIPHER *)sk_value(sk,i);
794 for (cp=c->name; *cp; )
810 int ssl_cipher_list_to_bytes(SSL *s,STACK *sk,unsigned char *p)
816 if (sk == NULL) return(0);
819 for (i=0; i<sk_num(sk); i++)
821 c=(SSL_CIPHER *)sk_value(sk,i);
822 j=ssl_put_cipher_by_char(s,c,p);
828 STACK *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,STACK **skp)
834 n=ssl_put_cipher_by_char(s,NULL,NULL);
837 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
840 if ((skp == NULL) || (*skp == NULL))
841 sk=sk_new(NULL); /* change perhaps later */
848 for (i=0; i<num; i+=n)
850 c=ssl_get_cipher_by_char(s,p);
854 if (!sk_push(sk,(char *)c))
856 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
866 if ((skp == NULL) || (*skp == NULL))
871 unsigned long SSL_SESSION_hash(SSL_SESSION *a)
876 ((unsigned int) a->session_id[0] )|
877 ((unsigned int) a->session_id[1]<< 8L)|
878 ((unsigned long)a->session_id[2]<<16L)|
879 ((unsigned long)a->session_id[3]<<24L);
883 int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
885 if (a->ssl_version != b->ssl_version)
887 if (a->session_id_length != b->session_id_length)
889 return(memcmp(a->session_id,b->session_id,a->session_id_length));
892 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
898 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
902 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
904 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
907 ret=(SSL_CTX *)Malloc(sizeof(SSL_CTX));
911 memset(ret,0,sizeof(SSL_CTX));
915 ret->cert_store=NULL;
916 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
917 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
918 ret->session_cache_head=NULL;
919 ret->session_cache_tail=NULL;
921 /* We take the system default */
922 ret->session_timeout=meth->get_timeout();
924 ret->new_session_cb=NULL;
925 ret->remove_session_cb=NULL;
926 ret->get_session_cb=NULL;
928 memset((char *)&ret->stats,0,sizeof(ret->stats));
931 ret->quiet_shutdown=0;
933 /* ret->cipher=NULL;*/
934 /* ret->s2->challenge=NULL;
935 ret->master_key=NULL;
937 ret->s2->conn_id=NULL; */
939 ret->info_callback=NULL;
941 ret->app_verify_callback=NULL;
942 ret->app_verify_arg=NULL;
945 ret->verify_mode=SSL_VERIFY_NONE;
946 ret->default_verify_callback=NULL;
947 if ((ret->default_cert=ssl_cert_new()) == NULL)
950 ret->default_passwd_callback=NULL;
951 ret->client_cert_cb=NULL;
953 ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp);
954 if (ret->sessions == NULL) goto err;
955 ret->cert_store=X509_STORE_new();
956 if (ret->cert_store == NULL) goto err;
958 ssl_create_cipher_list(ret->method,
959 &ret->cipher_list,&ret->cipher_list_by_id,
960 SSL_DEFAULT_CIPHER_LIST);
961 if ((ret->cipher_list == NULL) || (sk_num(ret->cipher_list) <= 0))
963 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
967 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
969 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
972 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
974 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
977 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
979 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
983 if ((ret->client_CA=sk_new_null()) == NULL)
986 CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data);
988 ret->extra_certs=NULL;
989 ret->comp_methods=SSL_COMP_get_compression_methods();
993 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
995 if (ret != NULL) SSL_CTX_free(ret);
999 void SSL_CTX_free(SSL_CTX *a)
1003 if (a == NULL) return;
1005 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1007 REF_PRINT("SSL_CTX",a);
1013 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1017 CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data);
1019 if (a->sessions != NULL)
1021 SSL_CTX_flush_sessions(a,0);
1022 lh_free(a->sessions);
1024 if (a->cert_store != NULL)
1025 X509_STORE_free(a->cert_store);
1026 if (a->cipher_list != NULL)
1027 sk_free(a->cipher_list);
1028 if (a->cipher_list_by_id != NULL)
1029 sk_free(a->cipher_list_by_id);
1030 if (a->default_cert != NULL)
1031 ssl_cert_free(a->default_cert);
1032 if (a->client_CA != NULL)
1033 sk_pop_free(a->client_CA,X509_NAME_free);
1034 if (a->extra_certs != NULL)
1035 sk_pop_free(a->extra_certs,X509_free);
1036 if (a->comp_methods != NULL)
1037 sk_pop_free(a->comp_methods,FreeFunc);
1041 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx,int (*cb)())
1043 ctx->default_passwd_callback=cb;
1046 void SSL_CTX_set_cert_verify_cb(SSL_CTX *ctx,int (*cb)(),char *arg)
1048 ctx->app_verify_callback=cb;
1049 ctx->app_verify_arg=arg;
1052 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1054 ctx->verify_mode=mode;
1055 ctx->default_verify_callback=cb;
1056 /* This needs cleaning up EAY EAY EAY */
1057 X509_STORE_set_verify_cb_func(ctx->cert_store,cb);
1060 /* Need default_cert to check for callbacks, for now (see comment in CERT
1063 void ssl_set_cert_masks(CERT *c,CERT *default_cert,SSL_CIPHER *cipher)
1066 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1067 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1068 int rsa_tmp_export,dh_tmp_export,kl;
1069 unsigned long mask,emask;
1071 if (c == NULL) return;
1073 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1076 rsa_tmp=(c->rsa_tmp != NULL || default_cert->rsa_tmp_cb != NULL);
1077 rsa_tmp_export=(default_cert->rsa_tmp_cb != NULL ||
1078 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1080 rsa_tmp=rsa_tmp_export=0;
1083 dh_tmp=(c->dh_tmp != NULL || default_cert->dh_tmp_cb != NULL);
1084 dh_tmp_export=(default_cert->dh_tmp_cb != NULL ||
1085 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1087 dh_tmp=dh_tmp_export=0;
1090 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1091 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1092 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1093 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1094 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1095 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1096 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1097 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1098 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1099 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1100 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1101 /* FIX THIS EAY EAY EAY */
1102 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1103 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1109 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1110 rsa_tmp,rsa_tmp_export,dh_tmp,
1111 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1114 if (rsa_enc || (rsa_tmp && rsa_sign))
1116 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1120 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1121 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1122 (rsa_enc || rsa_sign || dsa_sign))
1124 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1125 (rsa_enc || rsa_sign || dsa_sign))
1135 if (dh_rsa) mask|=SSL_kDHr;
1136 if (dh_rsa_export) emask|=SSL_kDHr;
1138 if (dh_dsa) mask|=SSL_kDHd;
1139 if (dh_dsa_export) emask|=SSL_kDHd;
1141 if (rsa_enc || rsa_sign)
1153 #ifdef SSL_ALLOW_ADH
1159 c->export_mask=emask;
1163 /* THIS NEEDS CLEANING UP */
1164 X509 *ssl_get_server_send_cert(SSL *s)
1166 unsigned long alg,mask,kalg;
1171 ssl_set_cert_masks(c,s->ctx->default_cert,s->s3->tmp.new_cipher);
1172 alg=s->s3->tmp.new_cipher->algorithms;
1173 export=SSL_IS_EXPORT(alg);
1174 mask=export?c->export_mask:c->mask;
1175 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1177 if (kalg & SSL_kDHr)
1179 else if (kalg & SSL_kDHd)
1181 else if (kalg & SSL_aDSS)
1182 i=SSL_PKEY_DSA_SIGN;
1183 else if (kalg & SSL_aRSA)
1185 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1186 i=SSL_PKEY_RSA_SIGN;
1190 else /* if (kalg & SSL_aNULL) */
1192 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR);
1195 if (c->pkeys[i].x509 == NULL) return(NULL);
1196 return(c->pkeys[i].x509);
1199 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1204 alg=cipher->algorithms;
1207 if ((alg & SSL_aDSS) &&
1208 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1209 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1210 else if (alg & SSL_aRSA)
1212 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1213 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1214 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1215 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1219 else /* if (alg & SSL_aNULL) */
1221 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR);
1226 void ssl_update_cache(SSL *s,int mode)
1230 /* If the session_id_length is 0, we are not supposed to cache it,
1231 * and it would be rather hard to do anyway :-) */
1232 if (s->session->session_id_length == 0) return;
1234 if ((s->ctx->session_cache_mode & mode)
1236 && SSL_CTX_add_session(s->ctx,s->session)
1237 && (s->ctx->new_session_cb != NULL))
1239 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1240 if (!s->ctx->new_session_cb(s,s->session))
1241 SSL_SESSION_free(s->session);
1244 /* auto flush every 255 connections */
1245 i=s->ctx->session_cache_mode;
1246 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1247 ((i & mode) == mode))
1249 if ( (((mode & SSL_SESS_CACHE_CLIENT)
1250 ?s->ctx->stats.sess_connect_good
1251 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1253 SSL_CTX_flush_sessions(s->ctx,time(NULL));
1258 SSL_METHOD *SSL_get_ssl_method(SSL *s)
1263 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1268 if (s->method != meth)
1270 if (s->handshake_func != NULL)
1271 conn=(s->handshake_func == s->method->ssl_connect);
1273 if (s->method->version == meth->version)
1277 s->method->ssl_free(s);
1279 ret=s->method->ssl_new(s);
1283 s->handshake_func=meth->ssl_connect;
1285 s->handshake_func=meth->ssl_accept;
1290 int SSL_get_error(SSL *s,int i)
1296 if (i > 0) return(SSL_ERROR_NONE);
1298 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1299 * etc, where we do encode the error */
1300 if ((l=ERR_peek_error()) != 0)
1302 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1303 return(SSL_ERROR_SYSCALL);
1305 return(SSL_ERROR_SSL);
1308 if ((i < 0) && SSL_want_read(s))
1310 bio=SSL_get_rbio(s);
1311 if (BIO_should_read(bio))
1312 return(SSL_ERROR_WANT_READ);
1313 else if (BIO_should_write(bio))
1314 return(SSL_ERROR_WANT_WRITE);
1315 else if (BIO_should_io_special(bio))
1317 reason=BIO_get_retry_reason(bio);
1318 if (reason == BIO_RR_CONNECT)
1319 return(SSL_ERROR_WANT_CONNECT);
1321 return(SSL_ERROR_SYSCALL); /* unknown */
1325 if ((i < 0) && SSL_want_write(s))
1327 bio=SSL_get_wbio(s);
1328 if (BIO_should_write(bio))
1329 return(SSL_ERROR_WANT_WRITE);
1330 else if (BIO_should_read(bio))
1331 return(SSL_ERROR_WANT_READ);
1332 else if (BIO_should_io_special(bio))
1334 reason=BIO_get_retry_reason(bio);
1335 if (reason == BIO_RR_CONNECT)
1336 return(SSL_ERROR_WANT_CONNECT);
1338 return(SSL_ERROR_SYSCALL);
1341 if ((i < 0) && SSL_want_x509_lookup(s))
1343 return(SSL_ERROR_WANT_X509_LOOKUP);
1348 if (s->version == SSL2_VERSION)
1350 /* assume it is the socket being closed */
1351 return(SSL_ERROR_ZERO_RETURN);
1355 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1356 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1357 return(SSL_ERROR_ZERO_RETURN);
1360 return(SSL_ERROR_SYSCALL);
1363 int SSL_do_handshake(SSL *s)
1367 if (s->handshake_func == NULL)
1369 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1373 s->method->ssl_renegotiate_check(s);
1375 if (SSL_in_init(s) || SSL_in_before(s))
1377 ret=s->handshake_func(s);
1382 /* For the next 2 functions, SSL_clear() sets shutdown and so
1383 * one of these calls will reset it */
1384 void SSL_set_accept_state(SSL *s)
1388 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1389 s->handshake_func=s->method->ssl_accept;
1390 /* clear the current cipher */
1391 ssl_clear_cipher_ctx(s);
1394 void SSL_set_connect_state(SSL *s)
1398 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1399 s->handshake_func=s->method->ssl_connect;
1400 /* clear the current cipher */
1401 ssl_clear_cipher_ctx(s);
1404 int ssl_undefined_function(SSL *s)
1406 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1410 SSL_METHOD *ssl_bad_method(int ver)
1412 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1416 char *SSL_get_version(SSL *s)
1418 if (s->version == TLS1_VERSION)
1420 else if (s->version == SSL3_VERSION)
1422 else if (s->version == SSL2_VERSION)
1428 SSL *SSL_dup(SSL *s)
1435 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
1438 /* This copies version, session-id, SSL_METHOD and 'cert' */
1439 SSL_copy_session_id(ret,s);
1441 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1442 SSL_set_verify(ret,SSL_get_verify_mode(s),
1443 SSL_get_verify_callback(s));
1445 SSL_set_info_callback(ret,SSL_get_info_callback(s));
1447 ret->debug=s->debug;
1448 ret->options=s->options;
1450 /* copy app data, a little dangerous perhaps */
1451 if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data))
1454 /* setup rbio, and wbio */
1455 if (s->rbio != NULL)
1457 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1460 if (s->wbio != NULL)
1462 if (s->wbio != s->rbio)
1464 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1468 ret->wbio=ret->rbio;
1471 /* dup the cipher_list and cipher_list_by_id stacks */
1472 if (s->cipher_list != NULL)
1474 if ((ret->cipher_list=sk_dup(s->cipher_list)) == NULL)
1477 if (s->cipher_list_by_id != NULL)
1478 if ((ret->cipher_list_by_id=sk_dup(s->cipher_list_by_id))
1482 /* Dup the client_CA list */
1483 if (s->client_CA != NULL)
1485 if ((sk=sk_dup(s->client_CA)) == NULL) goto err;
1487 for (i=0; i<sk_num(sk); i++)
1489 xn=(X509_NAME *)sk_value(sk,i);
1490 if ((sk_value(sk,i)=(char *)X509_NAME_dup(xn)) == NULL)
1498 ret->shutdown=s->shutdown;
1499 ret->state=s->state;
1500 ret->handshake_func=s->handshake_func;
1501 ret->server=s->server;
1506 if (ret != NULL) SSL_free(ret);
1512 void ssl_clear_cipher_ctx(SSL *s)
1514 if (s->enc_read_ctx != NULL)
1516 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
1517 Free(s->enc_read_ctx);
1518 s->enc_read_ctx=NULL;
1520 if (s->enc_write_ctx != NULL)
1522 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
1523 Free(s->enc_write_ctx);
1524 s->enc_write_ctx=NULL;
1526 if (s->expand != NULL)
1528 COMP_CTX_free(s->expand);
1531 if (s->compress != NULL)
1533 COMP_CTX_free(s->compress);
1538 /* Fix this function so that it takes an optional type parameter */
1539 X509 *SSL_get_certificate(SSL *s)
1541 if (s->cert != NULL)
1542 return(s->cert->key->x509);
1547 /* Fix this function so that it takes an optional type parameter */
1548 EVP_PKEY *SSL_get_privatekey(SSL *s)
1550 if (s->cert != NULL)
1551 return(s->cert->key->privatekey);
1556 SSL_CIPHER *SSL_get_current_cipher(SSL *s)
1558 if ((s->session != NULL) && (s->session->cipher != NULL))
1559 return(s->session->cipher);
1563 int ssl_init_wbio_buffer(SSL *s,int push)
1567 if (s->bbio == NULL)
1569 bbio=BIO_new(BIO_f_buffer());
1570 if (bbio == NULL) return(0);
1576 if (s->bbio == s->wbio)
1577 s->wbio=BIO_pop(s->wbio);
1580 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
1581 if (!BIO_set_read_buffer_size(bbio,1))
1583 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
1588 if (s->wbio != bbio)
1589 s->wbio=BIO_push(bbio,s->wbio);
1593 if (s->wbio == bbio)
1594 s->wbio=BIO_pop(bbio);
1599 void ssl_free_wbio_buffer(SSL *s)
1603 if (s->bbio == NULL) return;
1605 if (s->bbio == s->wbio)
1607 /* remove buffering */
1608 under=BIO_pop(s->wbio);
1618 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
1620 ctx->quiet_shutdown=mode;
1623 int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx)
1625 return(ctx->quiet_shutdown);
1628 void SSL_set_quiet_shutdown(SSL *s,int mode)
1630 s->quiet_shutdown=mode;
1633 int SSL_get_quiet_shutdown(SSL *s)
1635 return(s->quiet_shutdown);
1638 void SSL_set_shutdown(SSL *s,int mode)
1643 int SSL_get_shutdown(SSL *s)
1645 return(s->shutdown);
1648 int SSL_version(SSL *s)
1653 SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
1659 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
1661 return(X509_STORE_set_default_paths(ctx->cert_store));
1664 int SSL_CTX_load_verify_locations(SSL_CTX *ctx,char *CAfile,char *CApath)
1666 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
1670 void SSL_set_info_callback(SSL *ssl,void (*cb)())
1672 ssl->info_callback=cb;
1675 void (*SSL_get_info_callback(SSL *ssl))()
1677 return((void (*)())ssl->info_callback);
1680 int SSL_state(SSL *ssl)
1685 void SSL_set_verify_result(SSL *ssl,long arg)
1687 ssl->verify_result=arg;
1690 long SSL_get_verify_result(SSL *ssl)
1692 return(ssl->verify_result);
1695 int SSL_get_ex_new_index(long argl,char *argp,int (*new_func)(),
1696 int (*dup_func)(),void (*free_func)())
1699 return(CRYPTO_get_ex_new_index(ssl_meth_num-1,
1700 &ssl_meth,argl,argp,new_func,dup_func,free_func));
1703 int SSL_set_ex_data(SSL *s,int idx,void *arg)
1705 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1708 void *SSL_get_ex_data(SSL *s,int idx)
1710 return(CRYPTO_get_ex_data(&s->ex_data,idx));
1713 int SSL_CTX_get_ex_new_index(long argl,char *argp,int (*new_func)(),
1714 int (*dup_func)(),void (*free_func)())
1717 return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1,
1718 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func));
1721 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
1723 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1726 void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx)
1728 return(CRYPTO_get_ex_data(&s->ex_data,idx));
1736 X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx)
1738 return(ctx->cert_store);
1741 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
1743 if (ctx->cert_store != NULL)
1744 X509_STORE_free(ctx->cert_store);
1745 ctx->cert_store=store;
1748 int SSL_want(SSL *s)
1754 * \brief Set the callback for generating temporary RSA keys.
1755 * \param ctx the SSL context.
1756 * \param cb the callback
1759 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,int export,
1761 { SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,0,(char *)cb); }
1765 * \brief The RSA temporary key callback function.
1766 * \param ssl the SSL session.
1767 * \param export \c TRUE if the temp RSA key is for an export ciphersuite.
1768 * \param keylength if \c export is \c TRUE, then \c keylength is the size of
1769 * the required key in bits.
1770 * \return the temporary RSA key.
1771 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
1774 RSA *cb(SSL *ssl,int export,int keylength)
1779 * \brief Set the callback for generating temporary DH keys.
1780 * \param ctx the SSL context.
1781 * \param dh the callback
1784 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int export,
1786 { SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,0,(char *)dh); }
1788 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,int export,
1790 { SSL_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,0,(char *)cb); }
1792 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int export,
1794 { SSL_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,0,(char *)dh); }
1796 #if defined(_WINDLL) && defined(WIN16)
1797 #include "../crypto/bio/bss_file.c"