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)
580 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
583 if (ssl->cert->key->x509 == NULL)
585 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
588 if (ssl->cert->key->privatekey == NULL)
590 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
593 return(X509_check_private_key(ssl->cert->key->x509,
594 ssl->cert->key->privatekey));
597 int SSL_accept(SSL *s)
599 if (s->handshake_func == 0)
600 /* Not properly initialized yet */
601 SSL_set_accept_state(s);
603 return(s->method->ssl_accept(s));
606 int SSL_connect(SSL *s)
608 if (s->handshake_func == 0)
609 /* Not properly initialized yet */
610 SSL_set_connect_state(s);
612 return(s->method->ssl_connect(s));
615 long SSL_get_default_timeout(SSL *s)
617 return(s->method->get_timeout());
620 int SSL_read(SSL *s,char *buf,int num)
622 if (s->handshake_func == 0)
624 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
628 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
630 s->rwstate=SSL_NOTHING;
633 return(s->method->ssl_read(s,buf,num));
636 int SSL_peek(SSL *s,char *buf,int num)
638 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
642 return(s->method->ssl_peek(s,buf,num));
645 int SSL_write(SSL *s,const char *buf,int num)
647 if (s->handshake_func == 0)
649 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
653 if (s->shutdown & SSL_SENT_SHUTDOWN)
655 s->rwstate=SSL_NOTHING;
656 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
659 return(s->method->ssl_write(s,buf,num));
662 int SSL_shutdown(SSL *s)
664 /* Note that this function behaves differently from what one might
665 * expect. Return values are 0 for no success (yet),
666 * 1 for success; but calling it once is usually not enough,
667 * even if blocking I/O is used (see ssl3_shutdown).
670 if (s->handshake_func == 0)
672 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
676 if ((s != NULL) && !SSL_in_init(s))
677 return(s->method->ssl_shutdown(s));
682 int SSL_renegotiate(SSL *s)
685 return(s->method->ssl_renegotiate(s));
688 long SSL_ctrl(SSL *s,int cmd,long larg,char *parg)
694 case SSL_CTRL_GET_READ_AHEAD:
695 return(s->read_ahead);
696 case SSL_CTRL_SET_READ_AHEAD:
700 case SSL_CTRL_OPTIONS:
701 return(s->options|=larg);
703 return(s->mode|=larg);
705 return(s->method->ssl_ctrl(s,cmd,larg,parg));
709 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg)
715 case SSL_CTRL_GET_READ_AHEAD:
716 return(ctx->read_ahead);
717 case SSL_CTRL_SET_READ_AHEAD:
719 ctx->read_ahead=larg;
722 case SSL_CTRL_SET_SESS_CACHE_SIZE:
723 l=ctx->session_cache_size;
724 ctx->session_cache_size=larg;
726 case SSL_CTRL_GET_SESS_CACHE_SIZE:
727 return(ctx->session_cache_size);
728 case SSL_CTRL_SET_SESS_CACHE_MODE:
729 l=ctx->session_cache_mode;
730 ctx->session_cache_mode=larg;
732 case SSL_CTRL_GET_SESS_CACHE_MODE:
733 return(ctx->session_cache_mode);
735 case SSL_CTRL_SESS_NUMBER:
736 return(ctx->sessions->num_items);
737 case SSL_CTRL_SESS_CONNECT:
738 return(ctx->stats.sess_connect);
739 case SSL_CTRL_SESS_CONNECT_GOOD:
740 return(ctx->stats.sess_connect_good);
741 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
742 return(ctx->stats.sess_connect_renegotiate);
743 case SSL_CTRL_SESS_ACCEPT:
744 return(ctx->stats.sess_accept);
745 case SSL_CTRL_SESS_ACCEPT_GOOD:
746 return(ctx->stats.sess_accept_good);
747 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
748 return(ctx->stats.sess_accept_renegotiate);
749 case SSL_CTRL_SESS_HIT:
750 return(ctx->stats.sess_hit);
751 case SSL_CTRL_SESS_CB_HIT:
752 return(ctx->stats.sess_cb_hit);
753 case SSL_CTRL_SESS_MISSES:
754 return(ctx->stats.sess_miss);
755 case SSL_CTRL_SESS_TIMEOUTS:
756 return(ctx->stats.sess_timeout);
757 case SSL_CTRL_SESS_CACHE_FULL:
758 return(ctx->stats.sess_cache_full);
759 case SSL_CTRL_OPTIONS:
760 return(ctx->options|=larg);
762 return(ctx->mode|=larg);
764 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
768 int ssl_cipher_id_cmp(SSL_CIPHER *a,SSL_CIPHER *b)
776 return((l > 0)?1:-1);
779 int ssl_cipher_ptr_id_cmp(SSL_CIPHER **ap,SSL_CIPHER **bp)
783 l=(*ap)->id-(*bp)->id;
787 return((l > 0)?1:-1);
790 /** return a STACK of the ciphers available for the SSL and in order of
792 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s)
794 if ((s != NULL) && (s->cipher_list != NULL))
796 return(s->cipher_list);
798 else if ((s->ctx != NULL) &&
799 (s->ctx->cipher_list != NULL))
801 return(s->ctx->cipher_list);
806 /** return a STACK of the ciphers available for the SSL and in order of
808 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
810 if ((s != NULL) && (s->cipher_list_by_id != NULL))
812 return(s->cipher_list_by_id);
814 else if ((s != NULL) && (s->ctx != NULL) &&
815 (s->ctx->cipher_list_by_id != NULL))
817 return(s->ctx->cipher_list_by_id);
822 /** The old interface to get the same thing as SSL_get_ciphers() */
823 const char *SSL_get_cipher_list(SSL *s,int n)
826 STACK_OF(SSL_CIPHER) *sk;
828 if (s == NULL) return(NULL);
829 sk=SSL_get_ciphers(s);
830 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
832 c=sk_SSL_CIPHER_value(sk,n);
833 if (c == NULL) return(NULL);
837 /** specify the ciphers to be used by defaut by the SSL_CTX */
838 int SSL_CTX_set_cipher_list(SSL_CTX *ctx,char *str)
840 STACK_OF(SSL_CIPHER) *sk;
842 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
843 &ctx->cipher_list_by_id,str);
845 return((sk == NULL)?0:1);
848 /** specify the ciphers to be used by the SSL */
849 int SSL_set_cipher_list(SSL *s,char *str)
851 STACK_OF(SSL_CIPHER) *sk;
853 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
854 &s->cipher_list_by_id,str);
856 return((sk == NULL)?0:1);
859 /* works well for SSLv2, not so good for SSLv3 */
860 char *SSL_get_shared_ciphers(SSL *s,char *buf,int len)
864 STACK_OF(SSL_CIPHER) *sk;
868 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
873 sk=s->session->ciphers;
874 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
876 /* Decrement for either the ':' or a '\0' */
878 c=sk_SSL_CIPHER_value(sk,i);
879 for (cp=c->name; *cp; )
895 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
901 if (sk == NULL) return(0);
904 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
906 c=sk_SSL_CIPHER_value(sk,i);
907 j=ssl_put_cipher_by_char(s,c,p);
913 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
914 STACK_OF(SSL_CIPHER) **skp)
917 STACK_OF(SSL_CIPHER) *sk;
920 n=ssl_put_cipher_by_char(s,NULL,NULL);
923 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
926 if ((skp == NULL) || (*skp == NULL))
927 sk=sk_SSL_CIPHER_new(NULL); /* change perhaps later */
931 sk_SSL_CIPHER_zero(sk);
934 for (i=0; i<num; i+=n)
936 c=ssl_get_cipher_by_char(s,p);
940 if (!sk_SSL_CIPHER_push(sk,c))
942 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
952 if ((skp == NULL) || (*skp == NULL))
953 sk_SSL_CIPHER_free(sk);
957 unsigned long SSL_SESSION_hash(SSL_SESSION *a)
962 ((unsigned int) a->session_id[0] )|
963 ((unsigned int) a->session_id[1]<< 8L)|
964 ((unsigned long)a->session_id[2]<<16L)|
965 ((unsigned long)a->session_id[3]<<24L);
969 int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
971 if (a->ssl_version != b->ssl_version)
973 if (a->session_id_length != b->session_id_length)
975 return(memcmp(a->session_id,b->session_id,a->session_id_length));
978 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
984 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
988 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
990 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
993 ret=(SSL_CTX *)Malloc(sizeof(SSL_CTX));
997 memset(ret,0,sizeof(SSL_CTX));
1001 ret->cert_store=NULL;
1002 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1003 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1004 ret->session_cache_head=NULL;
1005 ret->session_cache_tail=NULL;
1007 /* We take the system default */
1008 ret->session_timeout=meth->get_timeout();
1010 ret->new_session_cb=NULL;
1011 ret->remove_session_cb=NULL;
1012 ret->get_session_cb=NULL;
1014 memset((char *)&ret->stats,0,sizeof(ret->stats));
1017 ret->quiet_shutdown=0;
1019 /* ret->cipher=NULL;*/
1020 /* ret->s2->challenge=NULL;
1021 ret->master_key=NULL;
1023 ret->s2->conn_id=NULL; */
1025 ret->info_callback=NULL;
1027 ret->app_verify_callback=NULL;
1028 ret->app_verify_arg=NULL;
1031 ret->verify_mode=SSL_VERIFY_NONE;
1032 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1033 ret->default_verify_callback=NULL;
1034 if ((ret->cert=ssl_cert_new()) == NULL)
1037 ret->default_passwd_callback=NULL;
1038 ret->default_passwd_callback_userdata=NULL;
1039 ret->client_cert_cb=NULL;
1041 ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp);
1042 if (ret->sessions == NULL) goto err;
1043 ret->cert_store=X509_STORE_new();
1044 if (ret->cert_store == NULL) goto err;
1046 ssl_create_cipher_list(ret->method,
1047 &ret->cipher_list,&ret->cipher_list_by_id,
1048 SSL_DEFAULT_CIPHER_LIST);
1049 if (ret->cipher_list == NULL
1050 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1052 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1056 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1058 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1061 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1063 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1066 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1068 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1072 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1075 CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data);
1077 ret->extra_certs=NULL;
1078 ret->comp_methods=SSL_COMP_get_compression_methods();
1082 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1084 if (ret != NULL) SSL_CTX_free(ret);
1088 static void SSL_COMP_free(SSL_COMP *comp)
1091 void SSL_CTX_free(SSL_CTX *a)
1095 if (a == NULL) return;
1097 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1099 REF_PRINT("SSL_CTX",a);
1105 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1109 CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data);
1111 if (a->sessions != NULL)
1113 SSL_CTX_flush_sessions(a,0);
1114 lh_free(a->sessions);
1116 if (a->cert_store != NULL)
1117 X509_STORE_free(a->cert_store);
1118 if (a->cipher_list != NULL)
1119 sk_SSL_CIPHER_free(a->cipher_list);
1120 if (a->cipher_list_by_id != NULL)
1121 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1122 if (a->cert != NULL)
1123 ssl_cert_free(a->cert);
1124 if (a->client_CA != NULL)
1125 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1126 if (a->extra_certs != NULL)
1127 sk_X509_pop_free(a->extra_certs,X509_free);
1128 if (a->comp_methods != NULL)
1129 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1133 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1135 ctx->default_passwd_callback=cb;
1138 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1140 ctx->default_passwd_callback_userdata=u;
1143 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg)
1146 * int (*cb)(X509_STORE_CTX *),
1148 * int (*cb)(X509_STORE_CTX *, void *arg)
1150 ctx->app_verify_callback=cb;
1151 ctx->app_verify_arg=arg; /* never used */
1154 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1156 ctx->verify_mode=mode;
1157 ctx->default_verify_callback=cb;
1158 /* This needs cleaning up EAY EAY EAY */
1159 X509_STORE_set_verify_cb_func(ctx->cert_store,cb);
1162 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1164 ctx->verify_depth=depth;
1167 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1170 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1171 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1172 int rsa_tmp_export,dh_tmp_export,kl;
1173 unsigned long mask,emask;
1175 if (c == NULL) return;
1177 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1180 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1181 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1182 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1184 rsa_tmp=rsa_tmp_export=0;
1187 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1188 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1189 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1191 dh_tmp=dh_tmp_export=0;
1194 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1195 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1196 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1197 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1198 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1199 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1200 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1201 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1202 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1203 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1204 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1205 /* FIX THIS EAY EAY EAY */
1206 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1207 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1213 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1214 rsa_tmp,rsa_tmp_export,dh_tmp,
1215 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1218 if (rsa_enc || (rsa_tmp && rsa_sign))
1220 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1224 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1225 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1226 (rsa_enc || rsa_sign || dsa_sign))
1228 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1229 (rsa_enc || rsa_sign || dsa_sign))
1239 if (dh_rsa) mask|=SSL_kDHr;
1240 if (dh_rsa_export) emask|=SSL_kDHr;
1242 if (dh_dsa) mask|=SSL_kDHd;
1243 if (dh_dsa_export) emask|=SSL_kDHd;
1245 if (rsa_enc || rsa_sign)
1257 #ifdef SSL_ALLOW_ADH
1263 c->export_mask=emask;
1267 /* THIS NEEDS CLEANING UP */
1268 X509 *ssl_get_server_send_cert(SSL *s)
1270 unsigned long alg,mask,kalg;
1275 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1276 alg=s->s3->tmp.new_cipher->algorithms;
1277 is_export=SSL_IS_EXPORT(alg);
1278 mask=is_export?c->export_mask:c->mask;
1279 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1281 if (kalg & SSL_kDHr)
1283 else if (kalg & SSL_kDHd)
1285 else if (kalg & SSL_aDSS)
1286 i=SSL_PKEY_DSA_SIGN;
1287 else if (kalg & SSL_aRSA)
1289 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1290 i=SSL_PKEY_RSA_SIGN;
1294 else /* if (kalg & SSL_aNULL) */
1296 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR);
1299 if (c->pkeys[i].x509 == NULL) return(NULL);
1300 return(c->pkeys[i].x509);
1303 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1308 alg=cipher->algorithms;
1311 if ((alg & SSL_aDSS) &&
1312 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1313 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1314 else if (alg & SSL_aRSA)
1316 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1317 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1318 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1319 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1323 else /* if (alg & SSL_aNULL) */
1325 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR);
1330 void ssl_update_cache(SSL *s,int mode)
1334 /* If the session_id_length is 0, we are not supposed to cache it,
1335 * and it would be rather hard to do anyway :-) */
1336 if (s->session->session_id_length == 0) return;
1338 if ((s->ctx->session_cache_mode & mode)
1340 && SSL_CTX_add_session(s->ctx,s->session)
1341 && (s->ctx->new_session_cb != NULL))
1343 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1344 if (!s->ctx->new_session_cb(s,s->session))
1345 SSL_SESSION_free(s->session);
1348 /* auto flush every 255 connections */
1349 i=s->ctx->session_cache_mode;
1350 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1351 ((i & mode) == mode))
1353 if ( (((mode & SSL_SESS_CACHE_CLIENT)
1354 ?s->ctx->stats.sess_connect_good
1355 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1357 SSL_CTX_flush_sessions(s->ctx,time(NULL));
1362 SSL_METHOD *SSL_get_ssl_method(SSL *s)
1367 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1372 if (s->method != meth)
1374 if (s->handshake_func != NULL)
1375 conn=(s->handshake_func == s->method->ssl_connect);
1377 if (s->method->version == meth->version)
1381 s->method->ssl_free(s);
1383 ret=s->method->ssl_new(s);
1387 s->handshake_func=meth->ssl_connect;
1389 s->handshake_func=meth->ssl_accept;
1394 int SSL_get_error(SSL *s,int i)
1400 if (i > 0) return(SSL_ERROR_NONE);
1402 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1403 * etc, where we do encode the error */
1404 if ((l=ERR_peek_error()) != 0)
1406 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1407 return(SSL_ERROR_SYSCALL);
1409 return(SSL_ERROR_SSL);
1412 if ((i < 0) && SSL_want_read(s))
1414 bio=SSL_get_rbio(s);
1415 if (BIO_should_read(bio))
1416 return(SSL_ERROR_WANT_READ);
1417 else if (BIO_should_write(bio))
1418 /* This one doesn't make too much sense ... We never try
1419 * to write to the rbio, and an application program where
1420 * rbio and wbio are separate couldn't even know what it
1422 * However if we ever set s->rwstate incorrectly
1423 * (so that we have SSL_want_read(s) instead of
1424 * SSL_want_write(s)) and rbio and wbio *are* the same,
1425 * this test works around that bug; so it might be safer
1427 return(SSL_ERROR_WANT_WRITE);
1428 else if (BIO_should_io_special(bio))
1430 reason=BIO_get_retry_reason(bio);
1431 if (reason == BIO_RR_CONNECT)
1432 return(SSL_ERROR_WANT_CONNECT);
1434 return(SSL_ERROR_SYSCALL); /* unknown */
1438 if ((i < 0) && SSL_want_write(s))
1440 bio=SSL_get_wbio(s);
1441 if (BIO_should_write(bio))
1442 return(SSL_ERROR_WANT_WRITE);
1443 else if (BIO_should_read(bio))
1444 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1445 return(SSL_ERROR_WANT_READ);
1446 else if (BIO_should_io_special(bio))
1448 reason=BIO_get_retry_reason(bio);
1449 if (reason == BIO_RR_CONNECT)
1450 return(SSL_ERROR_WANT_CONNECT);
1452 return(SSL_ERROR_SYSCALL);
1455 if ((i < 0) && SSL_want_x509_lookup(s))
1457 return(SSL_ERROR_WANT_X509_LOOKUP);
1462 if (s->version == SSL2_VERSION)
1464 /* assume it is the socket being closed */
1465 return(SSL_ERROR_ZERO_RETURN);
1469 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1470 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1471 return(SSL_ERROR_ZERO_RETURN);
1474 return(SSL_ERROR_SYSCALL);
1477 int SSL_do_handshake(SSL *s)
1481 if (s->handshake_func == NULL)
1483 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1487 s->method->ssl_renegotiate_check(s);
1489 if (SSL_in_init(s) || SSL_in_before(s))
1491 ret=s->handshake_func(s);
1496 /* For the next 2 functions, SSL_clear() sets shutdown and so
1497 * one of these calls will reset it */
1498 void SSL_set_accept_state(SSL *s)
1502 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1503 s->handshake_func=s->method->ssl_accept;
1504 /* clear the current cipher */
1505 ssl_clear_cipher_ctx(s);
1508 void SSL_set_connect_state(SSL *s)
1512 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1513 s->handshake_func=s->method->ssl_connect;
1514 /* clear the current cipher */
1515 ssl_clear_cipher_ctx(s);
1518 int ssl_undefined_function(SSL *s)
1520 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1524 SSL_METHOD *ssl_bad_method(int ver)
1526 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1530 char *SSL_get_version(SSL *s)
1532 if (s->version == TLS1_VERSION)
1534 else if (s->version == SSL3_VERSION)
1536 else if (s->version == SSL2_VERSION)
1542 SSL *SSL_dup(SSL *s)
1544 STACK_OF(X509_NAME) *sk;
1549 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
1552 if (s->session != NULL)
1554 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1555 SSL_copy_session_id(ret,s);
1559 /* No session has been established yet, so we have to expect
1560 * that s->cert or ret->cert will be changed later --
1561 * they should not both point to the same object,
1562 * and thus we can't use SSL_copy_session_id. */
1564 ret->method = s->method;
1565 ret->method->ssl_new(ret);
1567 if (s->cert != NULL)
1569 ret->cert = ssl_cert_dup(s->cert);
1570 if (ret->cert == NULL)
1574 SSL_set_session_id_context(ret,
1575 s->sid_ctx, s->sid_ctx_length);
1578 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1579 SSL_set_verify(ret,SSL_get_verify_mode(s),
1580 SSL_get_verify_callback(s));
1581 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
1583 SSL_set_info_callback(ret,SSL_get_info_callback(s));
1585 ret->debug=s->debug;
1586 ret->options=s->options;
1588 /* copy app data, a little dangerous perhaps */
1589 if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data))
1592 /* setup rbio, and wbio */
1593 if (s->rbio != NULL)
1595 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1598 if (s->wbio != NULL)
1600 if (s->wbio != s->rbio)
1602 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1606 ret->wbio=ret->rbio;
1609 /* dup the cipher_list and cipher_list_by_id stacks */
1610 if (s->cipher_list != NULL)
1612 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
1615 if (s->cipher_list_by_id != NULL)
1616 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
1620 /* Dup the client_CA list */
1621 if (s->client_CA != NULL)
1623 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
1625 for (i=0; i<sk_X509_NAME_num(sk); i++)
1627 xn=sk_X509_NAME_value(sk,i);
1628 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
1636 ret->shutdown=s->shutdown;
1637 ret->state=s->state;
1638 ret->handshake_func=s->handshake_func;
1639 ret->server=s->server;
1644 if (ret != NULL) SSL_free(ret);
1650 void ssl_clear_cipher_ctx(SSL *s)
1652 if (s->enc_read_ctx != NULL)
1654 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
1655 Free(s->enc_read_ctx);
1656 s->enc_read_ctx=NULL;
1658 if (s->enc_write_ctx != NULL)
1660 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
1661 Free(s->enc_write_ctx);
1662 s->enc_write_ctx=NULL;
1664 if (s->expand != NULL)
1666 COMP_CTX_free(s->expand);
1669 if (s->compress != NULL)
1671 COMP_CTX_free(s->compress);
1676 /* Fix this function so that it takes an optional type parameter */
1677 X509 *SSL_get_certificate(SSL *s)
1679 if (s->cert != NULL)
1680 return(s->cert->key->x509);
1685 /* Fix this function so that it takes an optional type parameter */
1686 EVP_PKEY *SSL_get_privatekey(SSL *s)
1688 if (s->cert != NULL)
1689 return(s->cert->key->privatekey);
1694 SSL_CIPHER *SSL_get_current_cipher(SSL *s)
1696 if ((s->session != NULL) && (s->session->cipher != NULL))
1697 return(s->session->cipher);
1701 int ssl_init_wbio_buffer(SSL *s,int push)
1705 if (s->bbio == NULL)
1707 bbio=BIO_new(BIO_f_buffer());
1708 if (bbio == NULL) return(0);
1714 if (s->bbio == s->wbio)
1715 s->wbio=BIO_pop(s->wbio);
1717 (void)BIO_reset(bbio);
1718 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
1719 if (!BIO_set_read_buffer_size(bbio,1))
1721 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
1726 if (s->wbio != bbio)
1727 s->wbio=BIO_push(bbio,s->wbio);
1731 if (s->wbio == bbio)
1732 s->wbio=BIO_pop(bbio);
1737 void ssl_free_wbio_buffer(SSL *s)
1741 if (s->bbio == NULL) return;
1743 if (s->bbio == s->wbio)
1745 /* remove buffering */
1746 under=BIO_pop(s->wbio);
1756 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
1758 ctx->quiet_shutdown=mode;
1761 int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx)
1763 return(ctx->quiet_shutdown);
1766 void SSL_set_quiet_shutdown(SSL *s,int mode)
1768 s->quiet_shutdown=mode;
1771 int SSL_get_quiet_shutdown(SSL *s)
1773 return(s->quiet_shutdown);
1776 void SSL_set_shutdown(SSL *s,int mode)
1781 int SSL_get_shutdown(SSL *s)
1783 return(s->shutdown);
1786 int SSL_version(SSL *s)
1791 SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
1797 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
1799 return(X509_STORE_set_default_paths(ctx->cert_store));
1802 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
1805 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
1809 void SSL_set_info_callback(SSL *ssl,void (*cb)())
1811 ssl->info_callback=cb;
1814 void (*SSL_get_info_callback(SSL *ssl))(void)
1816 return((void (*)())ssl->info_callback);
1819 int SSL_state(SSL *ssl)
1824 void SSL_set_verify_result(SSL *ssl,long arg)
1826 ssl->verify_result=arg;
1829 long SSL_get_verify_result(SSL *ssl)
1831 return(ssl->verify_result);
1834 int SSL_get_ex_new_index(long argl,char *argp,int (*new_func)(),
1835 int (*dup_func)(),void (*free_func)())
1838 return(CRYPTO_get_ex_new_index(ssl_meth_num-1,
1839 &ssl_meth,argl,argp,new_func,dup_func,free_func));
1842 int SSL_set_ex_data(SSL *s,int idx,void *arg)
1844 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1847 void *SSL_get_ex_data(SSL *s,int idx)
1849 return(CRYPTO_get_ex_data(&s->ex_data,idx));
1852 int SSL_CTX_get_ex_new_index(long argl,char *argp,int (*new_func)(),
1853 int (*dup_func)(),void (*free_func)())
1856 return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1,
1857 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func));
1860 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
1862 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1865 void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx)
1867 return(CRYPTO_get_ex_data(&s->ex_data,idx));
1875 X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx)
1877 return(ctx->cert_store);
1880 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
1882 if (ctx->cert_store != NULL)
1883 X509_STORE_free(ctx->cert_store);
1884 ctx->cert_store=store;
1887 int SSL_want(SSL *s)
1893 * \brief Set the callback for generating temporary RSA keys.
1894 * \param ctx the SSL context.
1895 * \param cb the callback
1899 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
1902 { SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,0,(char *)cb); }
1906 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,int is_export,
1908 { SSL_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,0,(char *)cb); }
1913 * \brief The RSA temporary key callback function.
1914 * \param ssl the SSL session.
1915 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
1916 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
1917 * of the required key in bits.
1918 * \return the temporary RSA key.
1919 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
1922 RSA *cb(SSL *ssl,int is_export,int keylength)
1927 * \brief Set the callback for generating temporary DH keys.
1928 * \param ctx the SSL context.
1929 * \param dh the callback
1933 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
1935 { SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,0,(char *)dh); }
1937 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
1939 { SSL_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,0,(char *)dh); }
1942 #if defined(_WINDLL) && defined(WIN16)
1943 #include "../crypto/bio/bss_file.c"
1946 IMPLEMENT_STACK_OF(SSL_CIPHER)
1947 IMPLEMENT_STACK_OF(SSL_COMP)