1 /*! \file ssl/ssl_lib.c
2 * \brief Version independent SSL functions.
4 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
7 * This package is an SSL implementation written
8 * by Eric Young (eay@cryptsoft.com).
9 * The implementation was written so as to conform with Netscapes SSL.
11 * This library is free for commercial and non-commercial use as long as
12 * the following conditions are aheared to. The following conditions
13 * apply to all code found in this distribution, be it the RC4, RSA,
14 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
15 * included with this distribution is covered by the same copyright terms
16 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
18 * Copyright remains Eric Young's, and as such any Copyright notices in
19 * the code are not to be removed.
20 * If this package is used in a product, Eric Young should be given attribution
21 * as the author of the parts of the library used.
22 * This can be in the form of a textual message at program startup or
23 * in documentation (online or textual) provided with the package.
25 * Redistribution and use in source and binary forms, with or without
26 * modification, are permitted provided that the following conditions
28 * 1. Redistributions of source code must retain the copyright
29 * notice, this list of conditions and the following disclaimer.
30 * 2. Redistributions in binary form must reproduce the above copyright
31 * notice, this list of conditions and the following disclaimer in the
32 * documentation and/or other materials provided with the distribution.
33 * 3. All advertising materials mentioning features or use of this software
34 * must display the following acknowledgement:
35 * "This product includes cryptographic software written by
36 * Eric Young (eay@cryptsoft.com)"
37 * The word 'cryptographic' can be left out if the rouines from the library
38 * being used are not cryptographic related :-).
39 * 4. If you include any Windows specific code (or a derivative thereof) from
40 * the apps directory (application code) you must include an acknowledgement:
41 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
43 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55 * The licence and distribution terms for any publically available version or
56 * derivative of this code cannot be changed. i.e. this code cannot simply be
57 * copied and put under another distribution licence
58 * [including the GNU Public Licence.]
62 #include <openssl/objects.h>
63 #include <openssl/lhash.h>
64 #include <openssl/x509v3.h>
67 const char *SSL_version_str=OPENSSL_VERSION_TEXT;
69 static STACK_OF(CRYPTO_EX_DATA_FUNCS) *ssl_meth=NULL;
70 static STACK_OF(CRYPTO_EX_DATA_FUNCS) *ssl_ctx_meth=NULL;
71 static int ssl_meth_num=0;
72 static int ssl_ctx_meth_num=0;
74 OPENSSL_GLOBAL SSL3_ENC_METHOD ssl3_undef_enc_method={
75 /* evil casts, but these functions are only called if there's a library bug */
76 (int (*)(SSL *,int))ssl_undefined_function,
77 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
78 ssl_undefined_function,
79 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
80 (int (*)(SSL*, int))ssl_undefined_function,
81 (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function
84 union rsa_fn_to_char_u
87 RSA *(*fn_p)(SSL *, int, int);
93 DH *(*fn_p)(SSL *, int, int);
100 if (s->method == NULL)
102 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
111 /* This is set if we are doing dynamic renegotiation so keep
112 * the old cipher. It is sort of a SSL_clear_lite :-) */
113 if (s->new_session) return(1);
116 state=s->state; /* Keep to check if we throw away the session-id */
119 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
121 s->version=s->method->version;
122 s->client_version=s->version;
123 s->rwstate=SSL_NOTHING;
124 s->rstate=SSL_ST_READ_HEADER;
125 s->read_ahead=s->ctx->read_ahead;
127 if (s->init_buf != NULL)
129 BUF_MEM_free(s->init_buf);
133 ssl_clear_cipher_ctx(s);
135 if (ssl_clear_bad_session(s))
137 SSL_SESSION_free(s->session);
144 /* Check to see if we were changed into a different method, if
145 * so, revert back if we are not doing session-id reuse. */
146 if ((s->session == NULL) && (s->method != s->ctx->method))
148 s->method->ssl_free(s);
149 s->method=s->ctx->method;
150 if (!s->method->ssl_new(s))
155 s->method->ssl_clear(s);
159 /** Used to change an SSL_CTXs default SSL method type */
160 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth)
162 STACK_OF(SSL_CIPHER) *sk;
166 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
167 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
168 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
170 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
176 SSL *SSL_new(SSL_CTX *ctx)
182 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
185 if (ctx->method == NULL)
187 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
191 s=(SSL *)Malloc(sizeof(SSL));
192 if (s == NULL) goto err;
193 memset(s,0,sizeof(SSL));
195 if (ctx->cert != NULL)
197 /* Earlier library versions used to copy the pointer to
198 * the CERT, not its contents; only when setting new
199 * parameters for the per-SSL copy, ssl_cert_new would be
200 * called (and the direct reference to the per-SSL_CTX
201 * settings would be lost, but those still were indirectly
202 * accessed for various purposes, and for that reason they
203 * used to be known as s->ctx->default_cert).
204 * Now we don't look at the SSL_CTX's CERT after having
205 * duplicated it once. */
207 s->cert = ssl_cert_dup(ctx->cert);
212 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
213 s->sid_ctx_length=ctx->sid_ctx_length;
214 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
215 s->verify_mode=ctx->verify_mode;
216 s->verify_depth=ctx->verify_depth;
217 s->verify_callback=ctx->default_verify_callback;
218 s->purpose = ctx->purpose;
219 s->trust = ctx->trust;
220 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
223 s->verify_result=X509_V_OK;
225 s->method=ctx->method;
227 if (!s->method->ssl_new(s))
230 s->quiet_shutdown=ctx->quiet_shutdown;
232 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
233 s->options=ctx->options;
237 CRYPTO_new_ex_data(ssl_meth,s,&s->ex_data);
244 ssl_cert_free(s->cert);
246 SSL_CTX_free(s->ctx); /* decrement reference count */
249 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
253 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
254 unsigned int sid_ctx_len)
256 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
258 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
261 ctx->sid_ctx_length=sid_ctx_len;
262 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
267 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
268 unsigned int sid_ctx_len)
270 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
272 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
275 ssl->sid_ctx_length=sid_ctx_len;
276 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
281 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
283 if(X509_PURPOSE_get_by_id(purpose) == -1) {
284 SSLerr(SSL_F_SSL_CTX_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
287 s->purpose = purpose;
291 int SSL_set_purpose(SSL *s, int purpose)
293 if(X509_PURPOSE_get_by_id(purpose) == -1) {
294 SSLerr(SSL_F_SSL_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
297 s->purpose = purpose;
301 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
303 if(X509_TRUST_get_by_id(trust) == -1) {
304 SSLerr(SSL_F_SSL_CTX_SET_TRUST, SSL_R_INVALID_TRUST);
311 int SSL_set_trust(SSL *s, int trust)
313 if(X509_TRUST_get_by_id(trust) == -1) {
314 SSLerr(SSL_F_SSL_SET_TRUST, SSL_R_INVALID_TRUST);
321 void SSL_free(SSL *s)
328 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
336 fprintf(stderr,"SSL_free, bad reference count\n");
341 CRYPTO_free_ex_data(ssl_meth,(char *)s,&s->ex_data);
345 /* If the buffering BIO is in place, pop it off */
346 if (s->bbio == s->wbio)
348 s->wbio=BIO_pop(s->wbio);
354 BIO_free_all(s->rbio);
355 if ((s->wbio != NULL) && (s->wbio != s->rbio))
356 BIO_free_all(s->wbio);
358 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
360 /* add extra stuff */
361 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
362 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
364 /* Make the next call work :-) */
365 if (s->session != NULL)
367 ssl_clear_bad_session(s);
368 SSL_SESSION_free(s->session);
371 ssl_clear_cipher_ctx(s);
373 if (s->cert != NULL) ssl_cert_free(s->cert);
374 /* Free up if allocated */
376 if (s->ctx) SSL_CTX_free(s->ctx);
378 if (s->client_CA != NULL)
379 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
381 if (s->method != NULL) s->method->ssl_free(s);
386 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
388 /* If the output buffering BIO is still in place, remove it
392 if (s->wbio == s->bbio)
394 s->wbio=s->wbio->next_bio;
395 s->bbio->next_bio=NULL;
398 if ((s->rbio != NULL) && (s->rbio != rbio))
399 BIO_free_all(s->rbio);
400 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
401 BIO_free_all(s->wbio);
406 BIO *SSL_get_rbio(SSL *s)
409 BIO *SSL_get_wbio(SSL *s)
412 int SSL_get_fd(SSL *s)
418 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
425 int SSL_set_fd(SSL *s,int fd)
430 bio=BIO_new(BIO_s_socket());
434 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
437 BIO_set_fd(bio,fd,BIO_NOCLOSE);
438 SSL_set_bio(s,bio,bio);
444 int SSL_set_wfd(SSL *s,int fd)
449 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
450 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
452 bio=BIO_new(BIO_s_socket());
455 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
456 BIO_set_fd(bio,fd,BIO_NOCLOSE);
457 SSL_set_bio(s,SSL_get_rbio(s),bio);
460 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
466 int SSL_set_rfd(SSL *s,int fd)
471 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
472 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
474 bio=BIO_new(BIO_s_socket());
478 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
481 BIO_set_fd(bio,fd,BIO_NOCLOSE);
482 SSL_set_bio(s,bio,SSL_get_wbio(s));
485 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
493 /* return length of latest Finished message we sent, copy to 'buf' */
494 size_t SSL_get_finished(SSL *s, void *buf, size_t count)
500 ret = s->s3->tmp.finish_md_len;
503 memcpy(buf, s->s3->tmp.finish_md, count);
508 /* return length of latest Finished message we expected, copy to 'buf' */
509 size_t SSL_get_peer_finished(SSL *s, void *buf, size_t count)
515 ret = s->s3->tmp.peer_finish_md_len;
518 memcpy(buf, s->s3->tmp.peer_finish_md, count);
524 int SSL_get_verify_mode(SSL *s)
526 return(s->verify_mode);
529 int SSL_get_verify_depth(SSL *s)
531 return(s->verify_depth);
534 int (*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *)
536 return(s->verify_callback);
539 int SSL_CTX_get_verify_mode(SSL_CTX *ctx)
541 return(ctx->verify_mode);
544 int SSL_CTX_get_verify_depth(SSL_CTX *ctx)
546 return(ctx->verify_depth);
549 int (*SSL_CTX_get_verify_callback(SSL_CTX *ctx))(int,X509_STORE_CTX *)
551 return(ctx->default_verify_callback);
554 void SSL_set_verify(SSL *s,int mode,
555 int (*callback)(int ok,X509_STORE_CTX *ctx))
558 if (callback != NULL)
559 s->verify_callback=callback;
562 void SSL_set_verify_depth(SSL *s,int depth)
564 s->verify_depth=depth;
567 void SSL_set_read_ahead(SSL *s,int yes)
572 int SSL_get_read_ahead(SSL *s)
574 return(s->read_ahead);
577 int SSL_pending(SSL *s)
579 return(s->method->ssl_pending(s));
582 X509 *SSL_get_peer_certificate(SSL *s)
586 if ((s == NULL) || (s->session == NULL))
591 if (r == NULL) return(r);
593 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
598 STACK_OF(X509) *SSL_get_peer_cert_chain(SSL *s)
602 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
605 r=s->session->sess_cert->cert_chain;
610 /* Now in theory, since the calling process own 't' it should be safe to
611 * modify. We need to be able to read f without being hassled */
612 void SSL_copy_session_id(SSL *t,SSL *f)
616 /* Do we need to to SSL locking? */
617 SSL_set_session(t,SSL_get_session(f));
619 /* what if we are setup as SSLv2 but want to talk SSLv3 or
621 if (t->method != f->method)
623 t->method->ssl_free(t); /* cleanup current */
624 t->method=f->method; /* change method */
625 t->method->ssl_new(t); /* setup new */
631 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
636 if (tmp != NULL) ssl_cert_free(tmp);
637 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
640 /* Fix this so it checks all the valid key/cert options */
641 int SSL_CTX_check_private_key(SSL_CTX *ctx)
643 if ( (ctx == NULL) ||
644 (ctx->cert == NULL) ||
645 (ctx->cert->key->x509 == NULL))
647 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
650 if (ctx->cert->key->privatekey == NULL)
652 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
655 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
658 /* Fix this function so that it takes an optional type parameter */
659 int SSL_check_private_key(SSL *ssl)
663 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
666 if (ssl->cert == NULL)
668 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
671 if (ssl->cert->key->x509 == NULL)
673 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
676 if (ssl->cert->key->privatekey == NULL)
678 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
681 return(X509_check_private_key(ssl->cert->key->x509,
682 ssl->cert->key->privatekey));
685 int SSL_accept(SSL *s)
687 if (s->handshake_func == 0)
688 /* Not properly initialized yet */
689 SSL_set_accept_state(s);
691 return(s->method->ssl_accept(s));
694 int SSL_connect(SSL *s)
696 if (s->handshake_func == 0)
697 /* Not properly initialized yet */
698 SSL_set_connect_state(s);
700 return(s->method->ssl_connect(s));
703 long SSL_get_default_timeout(SSL *s)
705 return(s->method->get_timeout());
708 int SSL_read(SSL *s,char *buf,int num)
710 if (s->handshake_func == 0)
712 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
716 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
718 s->rwstate=SSL_NOTHING;
721 return(s->method->ssl_read(s,buf,num));
724 int SSL_peek(SSL *s,char *buf,int num)
726 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
730 return(s->method->ssl_peek(s,buf,num));
733 int SSL_write(SSL *s,const char *buf,int num)
735 if (s->handshake_func == 0)
737 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
741 if (s->shutdown & SSL_SENT_SHUTDOWN)
743 s->rwstate=SSL_NOTHING;
744 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
747 return(s->method->ssl_write(s,buf,num));
750 int SSL_shutdown(SSL *s)
752 /* Note that this function behaves differently from what one might
753 * expect. Return values are 0 for no success (yet),
754 * 1 for success; but calling it once is usually not enough,
755 * even if blocking I/O is used (see ssl3_shutdown).
758 if (s->handshake_func == 0)
760 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
764 if ((s != NULL) && !SSL_in_init(s))
765 return(s->method->ssl_shutdown(s));
770 int SSL_renegotiate(SSL *s)
773 return(s->method->ssl_renegotiate(s));
776 long SSL_ctrl(SSL *s,int cmd,long larg,char *parg)
782 case SSL_CTRL_GET_READ_AHEAD:
783 return(s->read_ahead);
784 case SSL_CTRL_SET_READ_AHEAD:
788 case SSL_CTRL_OPTIONS:
789 return(s->options|=larg);
791 return(s->mode|=larg);
793 return(s->method->ssl_ctrl(s,cmd,larg,parg));
797 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg)
803 case SSL_CTRL_GET_READ_AHEAD:
804 return(ctx->read_ahead);
805 case SSL_CTRL_SET_READ_AHEAD:
807 ctx->read_ahead=larg;
810 case SSL_CTRL_SET_SESS_CACHE_SIZE:
811 l=ctx->session_cache_size;
812 ctx->session_cache_size=larg;
814 case SSL_CTRL_GET_SESS_CACHE_SIZE:
815 return(ctx->session_cache_size);
816 case SSL_CTRL_SET_SESS_CACHE_MODE:
817 l=ctx->session_cache_mode;
818 ctx->session_cache_mode=larg;
820 case SSL_CTRL_GET_SESS_CACHE_MODE:
821 return(ctx->session_cache_mode);
823 case SSL_CTRL_SESS_NUMBER:
824 return(ctx->sessions->num_items);
825 case SSL_CTRL_SESS_CONNECT:
826 return(ctx->stats.sess_connect);
827 case SSL_CTRL_SESS_CONNECT_GOOD:
828 return(ctx->stats.sess_connect_good);
829 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
830 return(ctx->stats.sess_connect_renegotiate);
831 case SSL_CTRL_SESS_ACCEPT:
832 return(ctx->stats.sess_accept);
833 case SSL_CTRL_SESS_ACCEPT_GOOD:
834 return(ctx->stats.sess_accept_good);
835 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
836 return(ctx->stats.sess_accept_renegotiate);
837 case SSL_CTRL_SESS_HIT:
838 return(ctx->stats.sess_hit);
839 case SSL_CTRL_SESS_CB_HIT:
840 return(ctx->stats.sess_cb_hit);
841 case SSL_CTRL_SESS_MISSES:
842 return(ctx->stats.sess_miss);
843 case SSL_CTRL_SESS_TIMEOUTS:
844 return(ctx->stats.sess_timeout);
845 case SSL_CTRL_SESS_CACHE_FULL:
846 return(ctx->stats.sess_cache_full);
847 case SSL_CTRL_OPTIONS:
848 return(ctx->options|=larg);
850 return(ctx->mode|=larg);
852 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
856 int ssl_cipher_id_cmp(SSL_CIPHER *a,SSL_CIPHER *b)
864 return((l > 0)?1:-1);
867 int ssl_cipher_ptr_id_cmp(SSL_CIPHER **ap,SSL_CIPHER **bp)
871 l=(*ap)->id-(*bp)->id;
875 return((l > 0)?1:-1);
878 /** return a STACK of the ciphers available for the SSL and in order of
880 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s)
882 if ((s != NULL) && (s->cipher_list != NULL))
884 return(s->cipher_list);
886 else if ((s->ctx != NULL) &&
887 (s->ctx->cipher_list != NULL))
889 return(s->ctx->cipher_list);
894 /** return a STACK of the ciphers available for the SSL and in order of
896 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
898 if ((s != NULL) && (s->cipher_list_by_id != NULL))
900 return(s->cipher_list_by_id);
902 else if ((s != NULL) && (s->ctx != NULL) &&
903 (s->ctx->cipher_list_by_id != NULL))
905 return(s->ctx->cipher_list_by_id);
910 /** The old interface to get the same thing as SSL_get_ciphers() */
911 const char *SSL_get_cipher_list(SSL *s,int n)
914 STACK_OF(SSL_CIPHER) *sk;
916 if (s == NULL) return(NULL);
917 sk=SSL_get_ciphers(s);
918 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
920 c=sk_SSL_CIPHER_value(sk,n);
921 if (c == NULL) return(NULL);
925 /** specify the ciphers to be used by default by the SSL_CTX */
926 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
928 STACK_OF(SSL_CIPHER) *sk;
930 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
931 &ctx->cipher_list_by_id,str);
933 return((sk == NULL)?0:1);
936 /** specify the ciphers to be used by the SSL */
937 int SSL_set_cipher_list(SSL *s,const char *str)
939 STACK_OF(SSL_CIPHER) *sk;
941 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
942 &s->cipher_list_by_id,str);
944 return((sk == NULL)?0:1);
947 /* works well for SSLv2, not so good for SSLv3 */
948 char *SSL_get_shared_ciphers(SSL *s,char *buf,int len)
952 STACK_OF(SSL_CIPHER) *sk;
956 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
961 sk=s->session->ciphers;
962 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
964 /* Decrement for either the ':' or a '\0' */
966 c=sk_SSL_CIPHER_value(sk,i);
967 for (cp=c->name; *cp; )
983 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
989 if (sk == NULL) return(0);
992 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
994 c=sk_SSL_CIPHER_value(sk,i);
995 j=ssl_put_cipher_by_char(s,c,p);
1001 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1002 STACK_OF(SSL_CIPHER) **skp)
1005 STACK_OF(SSL_CIPHER) *sk;
1008 n=ssl_put_cipher_by_char(s,NULL,NULL);
1011 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1014 if ((skp == NULL) || (*skp == NULL))
1015 sk=sk_SSL_CIPHER_new(NULL); /* change perhaps later */
1019 sk_SSL_CIPHER_zero(sk);
1022 for (i=0; i<num; i+=n)
1024 c=ssl_get_cipher_by_char(s,p);
1028 if (!sk_SSL_CIPHER_push(sk,c))
1030 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1040 if ((skp == NULL) || (*skp == NULL))
1041 sk_SSL_CIPHER_free(sk);
1045 unsigned long SSL_SESSION_hash(SSL_SESSION *a)
1050 ((unsigned int) a->session_id[0] )|
1051 ((unsigned int) a->session_id[1]<< 8L)|
1052 ((unsigned long)a->session_id[2]<<16L)|
1053 ((unsigned long)a->session_id[3]<<24L);
1057 int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
1059 if (a->ssl_version != b->ssl_version)
1061 if (a->session_id_length != b->session_id_length)
1063 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1066 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1072 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1076 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1078 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1081 ret=(SSL_CTX *)Malloc(sizeof(SSL_CTX));
1085 memset(ret,0,sizeof(SSL_CTX));
1089 ret->cert_store=NULL;
1090 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1091 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1092 ret->session_cache_head=NULL;
1093 ret->session_cache_tail=NULL;
1095 /* We take the system default */
1096 ret->session_timeout=meth->get_timeout();
1098 ret->new_session_cb=NULL;
1099 ret->remove_session_cb=NULL;
1100 ret->get_session_cb=NULL;
1102 memset((char *)&ret->stats,0,sizeof(ret->stats));
1105 ret->quiet_shutdown=0;
1107 /* ret->cipher=NULL;*/
1108 /* ret->s2->challenge=NULL;
1109 ret->master_key=NULL;
1111 ret->s2->conn_id=NULL; */
1113 ret->info_callback=NULL;
1115 ret->app_verify_callback=NULL;
1116 ret->app_verify_arg=NULL;
1119 ret->verify_mode=SSL_VERIFY_NONE;
1120 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1121 ret->default_verify_callback=NULL;
1122 if ((ret->cert=ssl_cert_new()) == NULL)
1125 ret->default_passwd_callback=NULL;
1126 ret->default_passwd_callback_userdata=NULL;
1127 ret->client_cert_cb=NULL;
1129 ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp);
1130 if (ret->sessions == NULL) goto err;
1131 ret->cert_store=X509_STORE_new();
1132 if (ret->cert_store == NULL) goto err;
1134 ssl_create_cipher_list(ret->method,
1135 &ret->cipher_list,&ret->cipher_list_by_id,
1136 SSL_DEFAULT_CIPHER_LIST);
1137 if (ret->cipher_list == NULL
1138 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1140 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1144 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1146 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1149 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1151 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1154 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1156 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1160 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1163 CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data);
1165 ret->extra_certs=NULL;
1166 ret->comp_methods=SSL_COMP_get_compression_methods();
1170 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1172 if (ret != NULL) SSL_CTX_free(ret);
1176 static void SSL_COMP_free(SSL_COMP *comp)
1179 void SSL_CTX_free(SSL_CTX *a)
1183 if (a == NULL) return;
1185 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1187 REF_PRINT("SSL_CTX",a);
1193 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1197 CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data);
1199 if (a->sessions != NULL)
1201 SSL_CTX_flush_sessions(a,0);
1202 lh_free(a->sessions);
1204 if (a->cert_store != NULL)
1205 X509_STORE_free(a->cert_store);
1206 if (a->cipher_list != NULL)
1207 sk_SSL_CIPHER_free(a->cipher_list);
1208 if (a->cipher_list_by_id != NULL)
1209 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1210 if (a->cert != NULL)
1211 ssl_cert_free(a->cert);
1212 if (a->client_CA != NULL)
1213 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1214 if (a->extra_certs != NULL)
1215 sk_X509_pop_free(a->extra_certs,X509_free);
1216 if (a->comp_methods != NULL)
1217 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1221 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1223 ctx->default_passwd_callback=cb;
1226 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1228 ctx->default_passwd_callback_userdata=u;
1231 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg)
1234 * int (*cb)(X509_STORE_CTX *),
1236 * int (*cb)(X509_STORE_CTX *, void *arg)
1238 ctx->app_verify_callback=cb;
1239 ctx->app_verify_arg=arg; /* never used */
1242 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1244 ctx->verify_mode=mode;
1245 ctx->default_verify_callback=cb;
1246 /* This needs cleaning up EAY EAY EAY */
1247 X509_STORE_set_verify_cb_func(ctx->cert_store,cb);
1250 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1252 ctx->verify_depth=depth;
1255 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1258 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1259 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1260 int rsa_tmp_export,dh_tmp_export,kl;
1261 unsigned long mask,emask;
1263 if (c == NULL) return;
1265 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1268 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1269 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1270 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1272 rsa_tmp=rsa_tmp_export=0;
1275 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1276 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1277 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1279 dh_tmp=dh_tmp_export=0;
1282 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1283 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1284 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1285 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1286 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1287 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1288 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1289 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1290 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1291 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1292 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1293 /* FIX THIS EAY EAY EAY */
1294 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1295 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1301 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1302 rsa_tmp,rsa_tmp_export,dh_tmp,
1303 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1306 if (rsa_enc || (rsa_tmp && rsa_sign))
1308 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1312 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1313 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1314 (rsa_enc || rsa_sign || dsa_sign))
1316 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1317 (rsa_enc || rsa_sign || dsa_sign))
1327 if (dh_rsa) mask|=SSL_kDHr;
1328 if (dh_rsa_export) emask|=SSL_kDHr;
1330 if (dh_dsa) mask|=SSL_kDHd;
1331 if (dh_dsa_export) emask|=SSL_kDHd;
1333 if (rsa_enc || rsa_sign)
1345 #ifdef SSL_ALLOW_ADH
1351 c->export_mask=emask;
1355 /* THIS NEEDS CLEANING UP */
1356 X509 *ssl_get_server_send_cert(SSL *s)
1358 unsigned long alg,mask,kalg;
1363 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1364 alg=s->s3->tmp.new_cipher->algorithms;
1365 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1366 mask=is_export?c->export_mask:c->mask;
1367 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1369 if (kalg & SSL_kDHr)
1371 else if (kalg & SSL_kDHd)
1373 else if (kalg & SSL_aDSS)
1374 i=SSL_PKEY_DSA_SIGN;
1375 else if (kalg & SSL_aRSA)
1377 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1378 i=SSL_PKEY_RSA_SIGN;
1382 else /* if (kalg & SSL_aNULL) */
1384 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR);
1387 if (c->pkeys[i].x509 == NULL) return(NULL);
1388 return(c->pkeys[i].x509);
1391 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1396 alg=cipher->algorithms;
1399 if ((alg & SSL_aDSS) &&
1400 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1401 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1402 else if (alg & SSL_aRSA)
1404 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1405 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1406 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1407 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1411 else /* if (alg & SSL_aNULL) */
1413 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR);
1418 void ssl_update_cache(SSL *s,int mode)
1422 /* If the session_id_length is 0, we are not supposed to cache it,
1423 * and it would be rather hard to do anyway :-) */
1424 if (s->session->session_id_length == 0) return;
1426 if ((s->ctx->session_cache_mode & mode)
1428 && SSL_CTX_add_session(s->ctx,s->session)
1429 && (s->ctx->new_session_cb != NULL))
1431 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1432 if (!s->ctx->new_session_cb(s,s->session))
1433 SSL_SESSION_free(s->session);
1436 /* auto flush every 255 connections */
1437 i=s->ctx->session_cache_mode;
1438 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1439 ((i & mode) == mode))
1441 if ( (((mode & SSL_SESS_CACHE_CLIENT)
1442 ?s->ctx->stats.sess_connect_good
1443 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1445 SSL_CTX_flush_sessions(s->ctx,time(NULL));
1450 SSL_METHOD *SSL_get_ssl_method(SSL *s)
1455 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1460 if (s->method != meth)
1462 if (s->handshake_func != NULL)
1463 conn=(s->handshake_func == s->method->ssl_connect);
1465 if (s->method->version == meth->version)
1469 s->method->ssl_free(s);
1471 ret=s->method->ssl_new(s);
1475 s->handshake_func=meth->ssl_connect;
1477 s->handshake_func=meth->ssl_accept;
1482 int SSL_get_error(SSL *s,int i)
1488 if (i > 0) return(SSL_ERROR_NONE);
1490 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1491 * etc, where we do encode the error */
1492 if ((l=ERR_peek_error()) != 0)
1494 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1495 return(SSL_ERROR_SYSCALL);
1497 return(SSL_ERROR_SSL);
1500 if ((i < 0) && SSL_want_read(s))
1502 bio=SSL_get_rbio(s);
1503 if (BIO_should_read(bio))
1504 return(SSL_ERROR_WANT_READ);
1505 else if (BIO_should_write(bio))
1506 /* This one doesn't make too much sense ... We never try
1507 * to write to the rbio, and an application program where
1508 * rbio and wbio are separate couldn't even know what it
1510 * However if we ever set s->rwstate incorrectly
1511 * (so that we have SSL_want_read(s) instead of
1512 * SSL_want_write(s)) and rbio and wbio *are* the same,
1513 * this test works around that bug; so it might be safer
1515 return(SSL_ERROR_WANT_WRITE);
1516 else if (BIO_should_io_special(bio))
1518 reason=BIO_get_retry_reason(bio);
1519 if (reason == BIO_RR_CONNECT)
1520 return(SSL_ERROR_WANT_CONNECT);
1522 return(SSL_ERROR_SYSCALL); /* unknown */
1526 if ((i < 0) && SSL_want_write(s))
1528 bio=SSL_get_wbio(s);
1529 if (BIO_should_write(bio))
1530 return(SSL_ERROR_WANT_WRITE);
1531 else if (BIO_should_read(bio))
1532 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1533 return(SSL_ERROR_WANT_READ);
1534 else if (BIO_should_io_special(bio))
1536 reason=BIO_get_retry_reason(bio);
1537 if (reason == BIO_RR_CONNECT)
1538 return(SSL_ERROR_WANT_CONNECT);
1540 return(SSL_ERROR_SYSCALL);
1543 if ((i < 0) && SSL_want_x509_lookup(s))
1545 return(SSL_ERROR_WANT_X509_LOOKUP);
1550 if (s->version == SSL2_VERSION)
1552 /* assume it is the socket being closed */
1553 return(SSL_ERROR_ZERO_RETURN);
1557 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1558 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1559 return(SSL_ERROR_ZERO_RETURN);
1562 return(SSL_ERROR_SYSCALL);
1565 int SSL_do_handshake(SSL *s)
1569 if (s->handshake_func == NULL)
1571 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1575 s->method->ssl_renegotiate_check(s);
1577 if (SSL_in_init(s) || SSL_in_before(s))
1579 ret=s->handshake_func(s);
1584 /* For the next 2 functions, SSL_clear() sets shutdown and so
1585 * one of these calls will reset it */
1586 void SSL_set_accept_state(SSL *s)
1590 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1591 s->handshake_func=s->method->ssl_accept;
1592 /* clear the current cipher */
1593 ssl_clear_cipher_ctx(s);
1596 void SSL_set_connect_state(SSL *s)
1600 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1601 s->handshake_func=s->method->ssl_connect;
1602 /* clear the current cipher */
1603 ssl_clear_cipher_ctx(s);
1606 int ssl_undefined_function(SSL *s)
1608 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1612 SSL_METHOD *ssl_bad_method(int ver)
1614 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1618 const char *SSL_get_version(SSL *s)
1620 if (s->version == TLS1_VERSION)
1622 else if (s->version == SSL3_VERSION)
1624 else if (s->version == SSL2_VERSION)
1630 SSL *SSL_dup(SSL *s)
1632 STACK_OF(X509_NAME) *sk;
1637 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
1640 if (s->session != NULL)
1642 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1643 SSL_copy_session_id(ret,s);
1647 /* No session has been established yet, so we have to expect
1648 * that s->cert or ret->cert will be changed later --
1649 * they should not both point to the same object,
1650 * and thus we can't use SSL_copy_session_id. */
1652 ret->method = s->method;
1653 ret->method->ssl_new(ret);
1655 if (s->cert != NULL)
1657 ret->cert = ssl_cert_dup(s->cert);
1658 if (ret->cert == NULL)
1662 SSL_set_session_id_context(ret,
1663 s->sid_ctx, s->sid_ctx_length);
1666 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1667 SSL_set_verify(ret,SSL_get_verify_mode(s),
1668 SSL_get_verify_callback(s));
1669 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
1671 SSL_set_info_callback(ret,SSL_get_info_callback(s));
1673 ret->debug=s->debug;
1674 ret->options=s->options;
1676 /* copy app data, a little dangerous perhaps */
1677 if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data))
1680 /* setup rbio, and wbio */
1681 if (s->rbio != NULL)
1683 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1686 if (s->wbio != NULL)
1688 if (s->wbio != s->rbio)
1690 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1694 ret->wbio=ret->rbio;
1697 /* dup the cipher_list and cipher_list_by_id stacks */
1698 if (s->cipher_list != NULL)
1700 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
1703 if (s->cipher_list_by_id != NULL)
1704 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
1708 /* Dup the client_CA list */
1709 if (s->client_CA != NULL)
1711 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
1713 for (i=0; i<sk_X509_NAME_num(sk); i++)
1715 xn=sk_X509_NAME_value(sk,i);
1716 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
1724 ret->shutdown=s->shutdown;
1725 ret->state=s->state;
1726 ret->handshake_func=s->handshake_func;
1727 ret->server=s->server;
1732 if (ret != NULL) SSL_free(ret);
1738 void ssl_clear_cipher_ctx(SSL *s)
1740 if (s->enc_read_ctx != NULL)
1742 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
1743 Free(s->enc_read_ctx);
1744 s->enc_read_ctx=NULL;
1746 if (s->enc_write_ctx != NULL)
1748 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
1749 Free(s->enc_write_ctx);
1750 s->enc_write_ctx=NULL;
1752 if (s->expand != NULL)
1754 COMP_CTX_free(s->expand);
1757 if (s->compress != NULL)
1759 COMP_CTX_free(s->compress);
1764 /* Fix this function so that it takes an optional type parameter */
1765 X509 *SSL_get_certificate(SSL *s)
1767 if (s->cert != NULL)
1768 return(s->cert->key->x509);
1773 /* Fix this function so that it takes an optional type parameter */
1774 EVP_PKEY *SSL_get_privatekey(SSL *s)
1776 if (s->cert != NULL)
1777 return(s->cert->key->privatekey);
1782 SSL_CIPHER *SSL_get_current_cipher(SSL *s)
1784 if ((s->session != NULL) && (s->session->cipher != NULL))
1785 return(s->session->cipher);
1789 int ssl_init_wbio_buffer(SSL *s,int push)
1793 if (s->bbio == NULL)
1795 bbio=BIO_new(BIO_f_buffer());
1796 if (bbio == NULL) return(0);
1802 if (s->bbio == s->wbio)
1803 s->wbio=BIO_pop(s->wbio);
1805 (void)BIO_reset(bbio);
1806 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
1807 if (!BIO_set_read_buffer_size(bbio,1))
1809 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
1814 if (s->wbio != bbio)
1815 s->wbio=BIO_push(bbio,s->wbio);
1819 if (s->wbio == bbio)
1820 s->wbio=BIO_pop(bbio);
1825 void ssl_free_wbio_buffer(SSL *s)
1829 if (s->bbio == NULL) return;
1831 if (s->bbio == s->wbio)
1833 /* remove buffering */
1834 under=BIO_pop(s->wbio);
1844 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
1846 ctx->quiet_shutdown=mode;
1849 int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx)
1851 return(ctx->quiet_shutdown);
1854 void SSL_set_quiet_shutdown(SSL *s,int mode)
1856 s->quiet_shutdown=mode;
1859 int SSL_get_quiet_shutdown(SSL *s)
1861 return(s->quiet_shutdown);
1864 void SSL_set_shutdown(SSL *s,int mode)
1869 int SSL_get_shutdown(SSL *s)
1871 return(s->shutdown);
1874 int SSL_version(SSL *s)
1879 SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
1885 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
1887 return(X509_STORE_set_default_paths(ctx->cert_store));
1890 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
1893 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
1897 void SSL_set_info_callback(SSL *ssl,void (*cb)())
1899 ssl->info_callback=cb;
1902 void (*SSL_get_info_callback(SSL *ssl))(void)
1904 return((void (*)())ssl->info_callback);
1907 int SSL_state(SSL *ssl)
1912 void SSL_set_verify_result(SSL *ssl,long arg)
1914 ssl->verify_result=arg;
1917 long SSL_get_verify_result(SSL *ssl)
1919 return(ssl->verify_result);
1922 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1923 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1926 return(CRYPTO_get_ex_new_index(ssl_meth_num-1,
1927 &ssl_meth,argl,argp,new_func,dup_func,free_func));
1930 int SSL_set_ex_data(SSL *s,int idx,void *arg)
1932 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1935 void *SSL_get_ex_data(SSL *s,int idx)
1937 return(CRYPTO_get_ex_data(&s->ex_data,idx));
1940 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1941 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1944 return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1,
1945 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func));
1948 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
1950 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1953 void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx)
1955 return(CRYPTO_get_ex_data(&s->ex_data,idx));
1963 X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx)
1965 return(ctx->cert_store);
1968 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
1970 if (ctx->cert_store != NULL)
1971 X509_STORE_free(ctx->cert_store);
1972 ctx->cert_store=store;
1975 int SSL_want(SSL *s)
1981 * \brief Set the callback for generating temporary RSA keys.
1982 * \param ctx the SSL context.
1983 * \param cb the callback
1987 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
1991 union rsa_fn_to_char_u rsa_tmp_cb;
1993 rsa_tmp_cb.fn_p = cb;
1994 SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,0,rsa_tmp_cb.char_p);
1999 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,int is_export,
2002 union rsa_fn_to_char_u rsa_tmp_cb;
2004 rsa_tmp_cb.fn_p = cb;
2005 SSL_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,0,rsa_tmp_cb.char_p);
2011 * \brief The RSA temporary key callback function.
2012 * \param ssl the SSL session.
2013 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2014 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2015 * of the required key in bits.
2016 * \return the temporary RSA key.
2017 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2020 RSA *cb(SSL *ssl,int is_export,int keylength)
2025 * \brief Set the callback for generating temporary DH keys.
2026 * \param ctx the SSL context.
2027 * \param dh the callback
2031 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2034 union dh_fn_to_char_u dh_tmp_cb;
2036 dh_tmp_cb.fn_p = dh;
2037 SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,0,dh_tmp_cb.char_p);
2040 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2043 union dh_fn_to_char_u dh_tmp_cb;
2045 dh_tmp_cb.fn_p = dh;
2046 SSL_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,0,dh_tmp_cb.char_p);
2050 #if defined(_WINDLL) && defined(WIN16)
2051 #include "../crypto/bio/bss_file.c"
2054 IMPLEMENT_STACK_OF(SSL_CIPHER)
2055 IMPLEMENT_STACK_OF(SSL_COMP)