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
88 if (s->method == NULL)
90 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
98 #if 0 /* Disabled since version 1.10 of this file (early return not
99 * needed because SSL_clear is not called when doing renegotiation) */
100 /* This is set if we are doing dynamic renegotiation so keep
101 * the old cipher. It is sort of a SSL_clear_lite :-) */
102 if (s->new_session) return(1);
106 SSLerr(SSL_F_SSL_CLEAR,SSL_R_INTERNAL_ERROR);
111 state=s->state; /* Keep to check if we throw away the session-id */
114 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
116 s->version=s->method->version;
117 s->client_version=s->version;
118 s->rwstate=SSL_NOTHING;
119 s->rstate=SSL_ST_READ_HEADER;
120 s->read_ahead=s->ctx->read_ahead;
122 if (s->init_buf != NULL)
124 BUF_MEM_free(s->init_buf);
128 ssl_clear_cipher_ctx(s);
130 if (ssl_clear_bad_session(s))
132 SSL_SESSION_free(s->session);
139 /* Check to see if we were changed into a different method, if
140 * so, revert back if we are not doing session-id reuse. */
141 if ((s->session == NULL) && (s->method != s->ctx->method))
143 s->method->ssl_free(s);
144 s->method=s->ctx->method;
145 if (!s->method->ssl_new(s))
150 s->method->ssl_clear(s);
154 /** Used to change an SSL_CTXs default SSL method type */
155 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth)
157 STACK_OF(SSL_CIPHER) *sk;
161 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
162 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
163 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
165 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
171 SSL *SSL_new(SSL_CTX *ctx)
177 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
180 if (ctx->method == NULL)
182 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
186 s=(SSL *)OPENSSL_malloc(sizeof(SSL));
187 if (s == NULL) goto err;
188 memset(s,0,sizeof(SSL));
190 if (ctx->cert != NULL)
192 /* Earlier library versions used to copy the pointer to
193 * the CERT, not its contents; only when setting new
194 * parameters for the per-SSL copy, ssl_cert_new would be
195 * called (and the direct reference to the per-SSL_CTX
196 * settings would be lost, but those still were indirectly
197 * accessed for various purposes, and for that reason they
198 * used to be known as s->ctx->default_cert).
199 * Now we don't look at the SSL_CTX's CERT after having
200 * duplicated it once. */
202 s->cert = ssl_cert_dup(ctx->cert);
207 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
208 s->sid_ctx_length=ctx->sid_ctx_length;
209 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
210 s->verify_mode=ctx->verify_mode;
211 s->verify_depth=ctx->verify_depth;
212 s->verify_callback=ctx->default_verify_callback;
213 s->purpose = ctx->purpose;
214 s->trust = ctx->trust;
215 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
218 s->verify_result=X509_V_OK;
220 s->method=ctx->method;
222 if (!s->method->ssl_new(s))
225 s->quiet_shutdown=ctx->quiet_shutdown;
227 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
228 s->options=ctx->options;
232 CRYPTO_new_ex_data(ssl_meth,s,&s->ex_data);
239 ssl_cert_free(s->cert);
241 SSL_CTX_free(s->ctx); /* decrement reference count */
244 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
248 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
249 unsigned int sid_ctx_len)
251 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
253 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
256 ctx->sid_ctx_length=sid_ctx_len;
257 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
262 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
263 unsigned int sid_ctx_len)
265 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
267 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
270 ssl->sid_ctx_length=sid_ctx_len;
271 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
276 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
278 if(X509_PURPOSE_get_by_id(purpose) == -1) {
279 SSLerr(SSL_F_SSL_CTX_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
282 s->purpose = purpose;
286 int SSL_set_purpose(SSL *s, int purpose)
288 if(X509_PURPOSE_get_by_id(purpose) == -1) {
289 SSLerr(SSL_F_SSL_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
292 s->purpose = purpose;
296 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
298 if(X509_TRUST_get_by_id(trust) == -1) {
299 SSLerr(SSL_F_SSL_CTX_SET_TRUST, SSL_R_INVALID_TRUST);
306 int SSL_set_trust(SSL *s, int trust)
308 if(X509_TRUST_get_by_id(trust) == -1) {
309 SSLerr(SSL_F_SSL_SET_TRUST, SSL_R_INVALID_TRUST);
316 void SSL_free(SSL *s)
323 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
331 fprintf(stderr,"SSL_free, bad reference count\n");
336 CRYPTO_free_ex_data(ssl_meth,(char *)s,&s->ex_data);
340 /* If the buffering BIO is in place, pop it off */
341 if (s->bbio == s->wbio)
343 s->wbio=BIO_pop(s->wbio);
349 BIO_free_all(s->rbio);
350 if ((s->wbio != NULL) && (s->wbio != s->rbio))
351 BIO_free_all(s->wbio);
353 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
355 /* add extra stuff */
356 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
357 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
359 /* Make the next call work :-) */
360 if (s->session != NULL)
362 ssl_clear_bad_session(s);
363 SSL_SESSION_free(s->session);
366 ssl_clear_cipher_ctx(s);
368 if (s->cert != NULL) ssl_cert_free(s->cert);
369 /* Free up if allocated */
371 if (s->ctx) SSL_CTX_free(s->ctx);
373 if (s->client_CA != NULL)
374 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
376 if (s->method != NULL) s->method->ssl_free(s);
381 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
383 /* If the output buffering BIO is still in place, remove it
387 if (s->wbio == s->bbio)
389 s->wbio=s->wbio->next_bio;
390 s->bbio->next_bio=NULL;
393 if ((s->rbio != NULL) && (s->rbio != rbio))
394 BIO_free_all(s->rbio);
395 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
396 BIO_free_all(s->wbio);
401 BIO *SSL_get_rbio(SSL *s)
404 BIO *SSL_get_wbio(SSL *s)
407 int SSL_get_fd(SSL *s)
413 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
420 int SSL_set_fd(SSL *s,int fd)
425 bio=BIO_new(BIO_s_socket());
429 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
432 BIO_set_fd(bio,fd,BIO_NOCLOSE);
433 SSL_set_bio(s,bio,bio);
439 int SSL_set_wfd(SSL *s,int fd)
444 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
445 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
447 bio=BIO_new(BIO_s_socket());
450 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
451 BIO_set_fd(bio,fd,BIO_NOCLOSE);
452 SSL_set_bio(s,SSL_get_rbio(s),bio);
455 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
461 int SSL_set_rfd(SSL *s,int fd)
466 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
467 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
469 bio=BIO_new(BIO_s_socket());
473 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
476 BIO_set_fd(bio,fd,BIO_NOCLOSE);
477 SSL_set_bio(s,bio,SSL_get_wbio(s));
480 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
488 /* return length of latest Finished message we sent, copy to 'buf' */
489 size_t SSL_get_finished(SSL *s, void *buf, size_t count)
495 ret = s->s3->tmp.finish_md_len;
498 memcpy(buf, s->s3->tmp.finish_md, count);
503 /* return length of latest Finished message we expected, copy to 'buf' */
504 size_t SSL_get_peer_finished(SSL *s, void *buf, size_t count)
510 ret = s->s3->tmp.peer_finish_md_len;
513 memcpy(buf, s->s3->tmp.peer_finish_md, count);
519 int SSL_get_verify_mode(SSL *s)
521 return(s->verify_mode);
524 int SSL_get_verify_depth(SSL *s)
526 return(s->verify_depth);
529 int (*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *)
531 return(s->verify_callback);
534 int SSL_CTX_get_verify_mode(SSL_CTX *ctx)
536 return(ctx->verify_mode);
539 int SSL_CTX_get_verify_depth(SSL_CTX *ctx)
541 return(ctx->verify_depth);
544 int (*SSL_CTX_get_verify_callback(SSL_CTX *ctx))(int,X509_STORE_CTX *)
546 return(ctx->default_verify_callback);
549 void SSL_set_verify(SSL *s,int mode,
550 int (*callback)(int ok,X509_STORE_CTX *ctx))
553 if (callback != NULL)
554 s->verify_callback=callback;
557 void SSL_set_verify_depth(SSL *s,int depth)
559 s->verify_depth=depth;
562 void SSL_set_read_ahead(SSL *s,int yes)
567 int SSL_get_read_ahead(SSL *s)
569 return(s->read_ahead);
572 int SSL_pending(SSL *s)
574 return(s->method->ssl_pending(s));
577 X509 *SSL_get_peer_certificate(SSL *s)
581 if ((s == NULL) || (s->session == NULL))
586 if (r == NULL) return(r);
588 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
593 STACK_OF(X509) *SSL_get_peer_cert_chain(SSL *s)
597 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
600 r=s->session->sess_cert->cert_chain;
602 /* If we are a client, cert_chain includes the peer's own
603 * certificate; if we are a server, it does not. */
608 /* Now in theory, since the calling process own 't' it should be safe to
609 * modify. We need to be able to read f without being hassled */
610 void SSL_copy_session_id(SSL *t,SSL *f)
614 /* Do we need to to SSL locking? */
615 SSL_set_session(t,SSL_get_session(f));
617 /* what if we are setup as SSLv2 but want to talk SSLv3 or
619 if (t->method != f->method)
621 t->method->ssl_free(t); /* cleanup current */
622 t->method=f->method; /* change method */
623 t->method->ssl_new(t); /* setup new */
629 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
634 if (tmp != NULL) ssl_cert_free(tmp);
635 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
638 /* Fix this so it checks all the valid key/cert options */
639 int SSL_CTX_check_private_key(SSL_CTX *ctx)
641 if ( (ctx == NULL) ||
642 (ctx->cert == NULL) ||
643 (ctx->cert->key->x509 == NULL))
645 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
648 if (ctx->cert->key->privatekey == NULL)
650 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
653 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
656 /* Fix this function so that it takes an optional type parameter */
657 int SSL_check_private_key(SSL *ssl)
661 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
664 if (ssl->cert == NULL)
666 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
669 if (ssl->cert->key->x509 == NULL)
671 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
674 if (ssl->cert->key->privatekey == NULL)
676 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
679 return(X509_check_private_key(ssl->cert->key->x509,
680 ssl->cert->key->privatekey));
683 int SSL_accept(SSL *s)
685 if (s->handshake_func == 0)
686 /* Not properly initialized yet */
687 SSL_set_accept_state(s);
689 return(s->method->ssl_accept(s));
692 int SSL_connect(SSL *s)
694 if (s->handshake_func == 0)
695 /* Not properly initialized yet */
696 SSL_set_connect_state(s);
698 return(s->method->ssl_connect(s));
701 long SSL_get_default_timeout(SSL *s)
703 return(s->method->get_timeout());
706 int SSL_read(SSL *s,char *buf,int num)
708 if (s->handshake_func == 0)
710 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
714 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
716 s->rwstate=SSL_NOTHING;
719 return(s->method->ssl_read(s,buf,num));
722 int SSL_peek(SSL *s,char *buf,int num)
724 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
728 return(s->method->ssl_peek(s,buf,num));
731 int SSL_write(SSL *s,const char *buf,int num)
733 if (s->handshake_func == 0)
735 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
739 if (s->shutdown & SSL_SENT_SHUTDOWN)
741 s->rwstate=SSL_NOTHING;
742 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
745 return(s->method->ssl_write(s,buf,num));
748 int SSL_shutdown(SSL *s)
750 /* Note that this function behaves differently from what one might
751 * expect. Return values are 0 for no success (yet),
752 * 1 for success; but calling it once is usually not enough,
753 * even if blocking I/O is used (see ssl3_shutdown).
756 if (s->handshake_func == 0)
758 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
762 if ((s != NULL) && !SSL_in_init(s))
763 return(s->method->ssl_shutdown(s));
768 int SSL_renegotiate(SSL *s)
771 return(s->method->ssl_renegotiate(s));
774 long SSL_ctrl(SSL *s,int cmd,long larg,char *parg)
780 case SSL_CTRL_GET_READ_AHEAD:
781 return(s->read_ahead);
782 case SSL_CTRL_SET_READ_AHEAD:
786 case SSL_CTRL_OPTIONS:
787 return(s->options|=larg);
789 return(s->mode|=larg);
791 return(s->method->ssl_ctrl(s,cmd,larg,parg));
795 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)())
800 return(s->method->ssl_callback_ctrl(s,cmd,fp));
804 struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
806 return ctx->sessions;
809 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg)
815 case SSL_CTRL_GET_READ_AHEAD:
816 return(ctx->read_ahead);
817 case SSL_CTRL_SET_READ_AHEAD:
819 ctx->read_ahead=larg;
822 case SSL_CTRL_SET_SESS_CACHE_SIZE:
823 l=ctx->session_cache_size;
824 ctx->session_cache_size=larg;
826 case SSL_CTRL_GET_SESS_CACHE_SIZE:
827 return(ctx->session_cache_size);
828 case SSL_CTRL_SET_SESS_CACHE_MODE:
829 l=ctx->session_cache_mode;
830 ctx->session_cache_mode=larg;
832 case SSL_CTRL_GET_SESS_CACHE_MODE:
833 return(ctx->session_cache_mode);
835 case SSL_CTRL_SESS_NUMBER:
836 return(ctx->sessions->num_items);
837 case SSL_CTRL_SESS_CONNECT:
838 return(ctx->stats.sess_connect);
839 case SSL_CTRL_SESS_CONNECT_GOOD:
840 return(ctx->stats.sess_connect_good);
841 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
842 return(ctx->stats.sess_connect_renegotiate);
843 case SSL_CTRL_SESS_ACCEPT:
844 return(ctx->stats.sess_accept);
845 case SSL_CTRL_SESS_ACCEPT_GOOD:
846 return(ctx->stats.sess_accept_good);
847 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
848 return(ctx->stats.sess_accept_renegotiate);
849 case SSL_CTRL_SESS_HIT:
850 return(ctx->stats.sess_hit);
851 case SSL_CTRL_SESS_CB_HIT:
852 return(ctx->stats.sess_cb_hit);
853 case SSL_CTRL_SESS_MISSES:
854 return(ctx->stats.sess_miss);
855 case SSL_CTRL_SESS_TIMEOUTS:
856 return(ctx->stats.sess_timeout);
857 case SSL_CTRL_SESS_CACHE_FULL:
858 return(ctx->stats.sess_cache_full);
859 case SSL_CTRL_OPTIONS:
860 return(ctx->options|=larg);
862 return(ctx->mode|=larg);
864 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
868 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)())
873 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
877 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
885 return((l > 0)?1:-1);
888 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
889 const SSL_CIPHER * const *bp)
893 l=(*ap)->id-(*bp)->id;
897 return((l > 0)?1:-1);
900 /** return a STACK of the ciphers available for the SSL and in order of
902 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s)
904 if ((s != NULL) && (s->cipher_list != NULL))
906 return(s->cipher_list);
908 else if ((s->ctx != NULL) &&
909 (s->ctx->cipher_list != NULL))
911 return(s->ctx->cipher_list);
916 /** return a STACK of the ciphers available for the SSL and in order of
918 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
920 if ((s != NULL) && (s->cipher_list_by_id != NULL))
922 return(s->cipher_list_by_id);
924 else if ((s != NULL) && (s->ctx != NULL) &&
925 (s->ctx->cipher_list_by_id != NULL))
927 return(s->ctx->cipher_list_by_id);
932 /** The old interface to get the same thing as SSL_get_ciphers() */
933 const char *SSL_get_cipher_list(SSL *s,int n)
936 STACK_OF(SSL_CIPHER) *sk;
938 if (s == NULL) return(NULL);
939 sk=SSL_get_ciphers(s);
940 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
942 c=sk_SSL_CIPHER_value(sk,n);
943 if (c == NULL) return(NULL);
947 /** specify the ciphers to be used by default by the SSL_CTX */
948 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
950 STACK_OF(SSL_CIPHER) *sk;
952 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
953 &ctx->cipher_list_by_id,str);
955 return((sk == NULL)?0:1);
958 /** specify the ciphers to be used by the SSL */
959 int SSL_set_cipher_list(SSL *s,const char *str)
961 STACK_OF(SSL_CIPHER) *sk;
963 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
964 &s->cipher_list_by_id,str);
966 return((sk == NULL)?0:1);
969 /* works well for SSLv2, not so good for SSLv3 */
970 char *SSL_get_shared_ciphers(SSL *s,char *buf,int len)
974 STACK_OF(SSL_CIPHER) *sk;
978 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
983 sk=s->session->ciphers;
984 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
986 /* Decrement for either the ':' or a '\0' */
988 c=sk_SSL_CIPHER_value(sk,i);
989 for (cp=c->name; *cp; )
1005 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
1011 if (sk == NULL) return(0);
1014 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1016 c=sk_SSL_CIPHER_value(sk,i);
1017 j=ssl_put_cipher_by_char(s,c,p);
1023 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1024 STACK_OF(SSL_CIPHER) **skp)
1027 STACK_OF(SSL_CIPHER) *sk;
1030 n=ssl_put_cipher_by_char(s,NULL,NULL);
1033 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1036 if ((skp == NULL) || (*skp == NULL))
1037 sk=sk_SSL_CIPHER_new(NULL); /* change perhaps later */
1041 sk_SSL_CIPHER_zero(sk);
1044 for (i=0; i<num; i+=n)
1046 c=ssl_get_cipher_by_char(s,p);
1050 if (!sk_SSL_CIPHER_push(sk,c))
1052 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1062 if ((skp == NULL) || (*skp == NULL))
1063 sk_SSL_CIPHER_free(sk);
1067 unsigned long SSL_SESSION_hash(SSL_SESSION *a)
1072 ((unsigned int) a->session_id[0] )|
1073 ((unsigned int) a->session_id[1]<< 8L)|
1074 ((unsigned long)a->session_id[2]<<16L)|
1075 ((unsigned long)a->session_id[3]<<24L);
1079 int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
1081 if (a->ssl_version != b->ssl_version)
1083 if (a->session_id_length != b->session_id_length)
1085 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1088 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1094 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1098 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1100 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1103 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1107 memset(ret,0,sizeof(SSL_CTX));
1111 ret->cert_store=NULL;
1112 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1113 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1114 ret->session_cache_head=NULL;
1115 ret->session_cache_tail=NULL;
1117 /* We take the system default */
1118 ret->session_timeout=meth->get_timeout();
1120 ret->new_session_cb=NULL;
1121 ret->remove_session_cb=NULL;
1122 ret->get_session_cb=NULL;
1124 memset((char *)&ret->stats,0,sizeof(ret->stats));
1127 ret->quiet_shutdown=0;
1129 /* ret->cipher=NULL;*/
1130 /* ret->s2->challenge=NULL;
1131 ret->master_key=NULL;
1133 ret->s2->conn_id=NULL; */
1135 ret->info_callback=NULL;
1137 ret->app_verify_callback=NULL;
1138 ret->app_verify_arg=NULL;
1141 ret->verify_mode=SSL_VERIFY_NONE;
1142 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1143 ret->default_verify_callback=NULL;
1144 if ((ret->cert=ssl_cert_new()) == NULL)
1147 ret->default_passwd_callback=NULL;
1148 ret->default_passwd_callback_userdata=NULL;
1149 ret->client_cert_cb=NULL;
1151 ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp);
1152 if (ret->sessions == NULL) goto err;
1153 ret->cert_store=X509_STORE_new();
1154 if (ret->cert_store == NULL) goto err;
1156 ssl_create_cipher_list(ret->method,
1157 &ret->cipher_list,&ret->cipher_list_by_id,
1158 SSL_DEFAULT_CIPHER_LIST);
1159 if (ret->cipher_list == NULL
1160 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1162 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1166 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1168 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1171 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1173 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1176 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1178 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1182 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1185 CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data);
1187 ret->extra_certs=NULL;
1188 ret->comp_methods=SSL_COMP_get_compression_methods();
1192 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1194 if (ret != NULL) SSL_CTX_free(ret);
1198 static void SSL_COMP_free(SSL_COMP *comp)
1199 { OPENSSL_free(comp); }
1201 void SSL_CTX_free(SSL_CTX *a)
1205 if (a == NULL) return;
1207 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1209 REF_PRINT("SSL_CTX",a);
1215 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1219 CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data);
1221 if (a->sessions != NULL)
1223 SSL_CTX_flush_sessions(a,0);
1224 lh_free(a->sessions);
1226 if (a->cert_store != NULL)
1227 X509_STORE_free(a->cert_store);
1228 if (a->cipher_list != NULL)
1229 sk_SSL_CIPHER_free(a->cipher_list);
1230 if (a->cipher_list_by_id != NULL)
1231 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1232 if (a->cert != NULL)
1233 ssl_cert_free(a->cert);
1234 if (a->client_CA != NULL)
1235 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1236 if (a->extra_certs != NULL)
1237 sk_X509_pop_free(a->extra_certs,X509_free);
1238 if (a->comp_methods != NULL)
1239 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1243 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1245 ctx->default_passwd_callback=cb;
1248 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1250 ctx->default_passwd_callback_userdata=u;
1253 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg)
1256 * int (*cb)(X509_STORE_CTX *),
1258 * int (*cb)(X509_STORE_CTX *, void *arg)
1260 ctx->app_verify_callback=cb;
1261 ctx->app_verify_arg=arg; /* never used */
1264 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1266 ctx->verify_mode=mode;
1267 ctx->default_verify_callback=cb;
1268 /* This needs cleaning up EAY EAY EAY */
1269 X509_STORE_set_verify_cb_func(ctx->cert_store,cb);
1272 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1274 ctx->verify_depth=depth;
1277 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1280 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1281 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1282 int rsa_tmp_export,dh_tmp_export,kl;
1283 unsigned long mask,emask;
1285 if (c == NULL) return;
1287 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1290 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1291 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1292 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1294 rsa_tmp=rsa_tmp_export=0;
1297 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1298 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1299 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1301 dh_tmp=dh_tmp_export=0;
1304 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1305 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1306 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1307 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1308 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1309 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1310 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1311 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1312 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1313 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1314 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1315 /* FIX THIS EAY EAY EAY */
1316 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1317 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1323 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1324 rsa_tmp,rsa_tmp_export,dh_tmp,
1325 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1328 if (rsa_enc || (rsa_tmp && rsa_sign))
1330 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1334 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1335 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1336 (rsa_enc || rsa_sign || dsa_sign))
1338 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1339 (rsa_enc || rsa_sign || dsa_sign))
1349 if (dh_rsa) mask|=SSL_kDHr;
1350 if (dh_rsa_export) emask|=SSL_kDHr;
1352 if (dh_dsa) mask|=SSL_kDHd;
1353 if (dh_dsa_export) emask|=SSL_kDHd;
1355 if (rsa_enc || rsa_sign)
1371 c->export_mask=emask;
1375 /* THIS NEEDS CLEANING UP */
1376 X509 *ssl_get_server_send_cert(SSL *s)
1378 unsigned long alg,mask,kalg;
1383 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1384 alg=s->s3->tmp.new_cipher->algorithms;
1385 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1386 mask=is_export?c->export_mask:c->mask;
1387 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1389 if (kalg & SSL_kDHr)
1391 else if (kalg & SSL_kDHd)
1393 else if (kalg & SSL_aDSS)
1394 i=SSL_PKEY_DSA_SIGN;
1395 else if (kalg & SSL_aRSA)
1397 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1398 i=SSL_PKEY_RSA_SIGN;
1402 else /* if (kalg & SSL_aNULL) */
1404 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR);
1407 if (c->pkeys[i].x509 == NULL) return(NULL);
1408 return(c->pkeys[i].x509);
1411 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1416 alg=cipher->algorithms;
1419 if ((alg & SSL_aDSS) &&
1420 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1421 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1422 else if (alg & SSL_aRSA)
1424 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1425 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1426 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1427 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1431 else /* if (alg & SSL_aNULL) */
1433 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR);
1438 void ssl_update_cache(SSL *s,int mode)
1442 /* If the session_id_length is 0, we are not supposed to cache it,
1443 * and it would be rather hard to do anyway :-) */
1444 if (s->session->session_id_length == 0) return;
1446 if ((s->ctx->session_cache_mode & mode)
1448 && SSL_CTX_add_session(s->ctx,s->session)
1449 && (s->ctx->new_session_cb != NULL))
1451 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1452 if (!s->ctx->new_session_cb(s,s->session))
1453 SSL_SESSION_free(s->session);
1456 /* auto flush every 255 connections */
1457 i=s->ctx->session_cache_mode;
1458 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1459 ((i & mode) == mode))
1461 if ( (((mode & SSL_SESS_CACHE_CLIENT)
1462 ?s->ctx->stats.sess_connect_good
1463 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1465 SSL_CTX_flush_sessions(s->ctx,time(NULL));
1470 SSL_METHOD *SSL_get_ssl_method(SSL *s)
1475 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1480 if (s->method != meth)
1482 if (s->handshake_func != NULL)
1483 conn=(s->handshake_func == s->method->ssl_connect);
1485 if (s->method->version == meth->version)
1489 s->method->ssl_free(s);
1491 ret=s->method->ssl_new(s);
1495 s->handshake_func=meth->ssl_connect;
1497 s->handshake_func=meth->ssl_accept;
1502 int SSL_get_error(SSL *s,int i)
1508 if (i > 0) return(SSL_ERROR_NONE);
1510 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1511 * etc, where we do encode the error */
1512 if ((l=ERR_peek_error()) != 0)
1514 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1515 return(SSL_ERROR_SYSCALL);
1517 return(SSL_ERROR_SSL);
1520 if ((i < 0) && SSL_want_read(s))
1522 bio=SSL_get_rbio(s);
1523 if (BIO_should_read(bio))
1524 return(SSL_ERROR_WANT_READ);
1525 else if (BIO_should_write(bio))
1526 /* This one doesn't make too much sense ... We never try
1527 * to write to the rbio, and an application program where
1528 * rbio and wbio are separate couldn't even know what it
1530 * However if we ever set s->rwstate incorrectly
1531 * (so that we have SSL_want_read(s) instead of
1532 * SSL_want_write(s)) and rbio and wbio *are* the same,
1533 * this test works around that bug; so it might be safer
1535 return(SSL_ERROR_WANT_WRITE);
1536 else if (BIO_should_io_special(bio))
1538 reason=BIO_get_retry_reason(bio);
1539 if (reason == BIO_RR_CONNECT)
1540 return(SSL_ERROR_WANT_CONNECT);
1542 return(SSL_ERROR_SYSCALL); /* unknown */
1546 if ((i < 0) && SSL_want_write(s))
1548 bio=SSL_get_wbio(s);
1549 if (BIO_should_write(bio))
1550 return(SSL_ERROR_WANT_WRITE);
1551 else if (BIO_should_read(bio))
1552 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1553 return(SSL_ERROR_WANT_READ);
1554 else if (BIO_should_io_special(bio))
1556 reason=BIO_get_retry_reason(bio);
1557 if (reason == BIO_RR_CONNECT)
1558 return(SSL_ERROR_WANT_CONNECT);
1560 return(SSL_ERROR_SYSCALL);
1563 if ((i < 0) && SSL_want_x509_lookup(s))
1565 return(SSL_ERROR_WANT_X509_LOOKUP);
1570 if (s->version == SSL2_VERSION)
1572 /* assume it is the socket being closed */
1573 return(SSL_ERROR_ZERO_RETURN);
1577 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1578 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1579 return(SSL_ERROR_ZERO_RETURN);
1582 return(SSL_ERROR_SYSCALL);
1585 int SSL_do_handshake(SSL *s)
1589 if (s->handshake_func == NULL)
1591 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1595 s->method->ssl_renegotiate_check(s);
1597 if (SSL_in_init(s) || SSL_in_before(s))
1599 ret=s->handshake_func(s);
1604 /* For the next 2 functions, SSL_clear() sets shutdown and so
1605 * one of these calls will reset it */
1606 void SSL_set_accept_state(SSL *s)
1610 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1611 s->handshake_func=s->method->ssl_accept;
1612 /* clear the current cipher */
1613 ssl_clear_cipher_ctx(s);
1616 void SSL_set_connect_state(SSL *s)
1620 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1621 s->handshake_func=s->method->ssl_connect;
1622 /* clear the current cipher */
1623 ssl_clear_cipher_ctx(s);
1626 int ssl_undefined_function(SSL *s)
1628 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1632 SSL_METHOD *ssl_bad_method(int ver)
1634 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1638 const char *SSL_get_version(SSL *s)
1640 if (s->version == TLS1_VERSION)
1642 else if (s->version == SSL3_VERSION)
1644 else if (s->version == SSL2_VERSION)
1650 SSL *SSL_dup(SSL *s)
1652 STACK_OF(X509_NAME) *sk;
1657 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
1660 if (s->session != NULL)
1662 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1663 SSL_copy_session_id(ret,s);
1667 /* No session has been established yet, so we have to expect
1668 * that s->cert or ret->cert will be changed later --
1669 * they should not both point to the same object,
1670 * and thus we can't use SSL_copy_session_id. */
1672 ret->method = s->method;
1673 ret->method->ssl_new(ret);
1675 if (s->cert != NULL)
1677 ret->cert = ssl_cert_dup(s->cert);
1678 if (ret->cert == NULL)
1682 SSL_set_session_id_context(ret,
1683 s->sid_ctx, s->sid_ctx_length);
1686 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1687 SSL_set_verify(ret,SSL_get_verify_mode(s),
1688 SSL_get_verify_callback(s));
1689 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
1691 SSL_set_info_callback(ret,SSL_get_info_callback(s));
1693 ret->debug=s->debug;
1694 ret->options=s->options;
1696 /* copy app data, a little dangerous perhaps */
1697 if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data))
1700 /* setup rbio, and wbio */
1701 if (s->rbio != NULL)
1703 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1706 if (s->wbio != NULL)
1708 if (s->wbio != s->rbio)
1710 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1714 ret->wbio=ret->rbio;
1717 /* dup the cipher_list and cipher_list_by_id stacks */
1718 if (s->cipher_list != NULL)
1720 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
1723 if (s->cipher_list_by_id != NULL)
1724 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
1728 /* Dup the client_CA list */
1729 if (s->client_CA != NULL)
1731 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
1733 for (i=0; i<sk_X509_NAME_num(sk); i++)
1735 xn=sk_X509_NAME_value(sk,i);
1736 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
1744 ret->shutdown=s->shutdown;
1745 ret->state=s->state;
1746 ret->handshake_func=s->handshake_func;
1747 ret->server=s->server;
1752 if (ret != NULL) SSL_free(ret);
1758 void ssl_clear_cipher_ctx(SSL *s)
1760 if (s->enc_read_ctx != NULL)
1762 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
1763 OPENSSL_free(s->enc_read_ctx);
1764 s->enc_read_ctx=NULL;
1766 if (s->enc_write_ctx != NULL)
1768 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
1769 OPENSSL_free(s->enc_write_ctx);
1770 s->enc_write_ctx=NULL;
1772 if (s->expand != NULL)
1774 COMP_CTX_free(s->expand);
1777 if (s->compress != NULL)
1779 COMP_CTX_free(s->compress);
1784 /* Fix this function so that it takes an optional type parameter */
1785 X509 *SSL_get_certificate(SSL *s)
1787 if (s->cert != NULL)
1788 return(s->cert->key->x509);
1793 /* Fix this function so that it takes an optional type parameter */
1794 EVP_PKEY *SSL_get_privatekey(SSL *s)
1796 if (s->cert != NULL)
1797 return(s->cert->key->privatekey);
1802 SSL_CIPHER *SSL_get_current_cipher(SSL *s)
1804 if ((s->session != NULL) && (s->session->cipher != NULL))
1805 return(s->session->cipher);
1809 int ssl_init_wbio_buffer(SSL *s,int push)
1813 if (s->bbio == NULL)
1815 bbio=BIO_new(BIO_f_buffer());
1816 if (bbio == NULL) return(0);
1822 if (s->bbio == s->wbio)
1823 s->wbio=BIO_pop(s->wbio);
1825 (void)BIO_reset(bbio);
1826 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
1827 if (!BIO_set_read_buffer_size(bbio,1))
1829 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
1834 if (s->wbio != bbio)
1835 s->wbio=BIO_push(bbio,s->wbio);
1839 if (s->wbio == bbio)
1840 s->wbio=BIO_pop(bbio);
1845 void ssl_free_wbio_buffer(SSL *s)
1849 if (s->bbio == NULL) return;
1851 if (s->bbio == s->wbio)
1853 /* remove buffering */
1854 under=BIO_pop(s->wbio);
1864 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
1866 ctx->quiet_shutdown=mode;
1869 int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx)
1871 return(ctx->quiet_shutdown);
1874 void SSL_set_quiet_shutdown(SSL *s,int mode)
1876 s->quiet_shutdown=mode;
1879 int SSL_get_quiet_shutdown(SSL *s)
1881 return(s->quiet_shutdown);
1884 void SSL_set_shutdown(SSL *s,int mode)
1889 int SSL_get_shutdown(SSL *s)
1891 return(s->shutdown);
1894 int SSL_version(SSL *s)
1899 SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
1905 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
1907 return(X509_STORE_set_default_paths(ctx->cert_store));
1910 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
1913 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
1917 void SSL_set_info_callback(SSL *ssl,void (*cb)())
1919 ssl->info_callback=cb;
1922 void (*SSL_get_info_callback(SSL *ssl))(void)
1924 return((void (*)())ssl->info_callback);
1927 int SSL_state(SSL *ssl)
1932 void SSL_set_verify_result(SSL *ssl,long arg)
1934 ssl->verify_result=arg;
1937 long SSL_get_verify_result(SSL *ssl)
1939 return(ssl->verify_result);
1942 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1943 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1946 return(CRYPTO_get_ex_new_index(ssl_meth_num-1,
1947 &ssl_meth,argl,argp,new_func,dup_func,free_func));
1950 int SSL_set_ex_data(SSL *s,int idx,void *arg)
1952 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1955 void *SSL_get_ex_data(SSL *s,int idx)
1957 return(CRYPTO_get_ex_data(&s->ex_data,idx));
1960 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1961 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1964 return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1,
1965 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func));
1968 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
1970 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1973 void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx)
1975 return(CRYPTO_get_ex_data(&s->ex_data,idx));
1983 X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx)
1985 return(ctx->cert_store);
1988 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
1990 if (ctx->cert_store != NULL)
1991 X509_STORE_free(ctx->cert_store);
1992 ctx->cert_store=store;
1995 int SSL_want(SSL *s)
2001 * \brief Set the callback for generating temporary RSA keys.
2002 * \param ctx the SSL context.
2003 * \param cb the callback
2007 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2011 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2014 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2018 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2024 * \brief The RSA temporary key callback function.
2025 * \param ssl the SSL session.
2026 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2027 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2028 * of the required key in bits.
2029 * \return the temporary RSA key.
2030 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2033 RSA *cb(SSL *ssl,int is_export,int keylength)
2038 * \brief Set the callback for generating temporary DH keys.
2039 * \param ctx the SSL context.
2040 * \param dh the callback
2044 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2047 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2050 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2053 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2057 #if defined(_WINDLL) && defined(WIN16)
2058 #include "../crypto/bio/bss_file.c"
2061 IMPLEMENT_STACK_OF(SSL_CIPHER)
2062 IMPLEMENT_STACK_OF(SSL_COMP)