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.]
64 #include <openssl/objects.h>
65 #include <openssl/lhash.h>
66 #include <openssl/x509v3.h>
69 const char *SSL_version_str=OPENSSL_VERSION_TEXT;
71 static STACK_OF(CRYPTO_EX_DATA_FUNCS) *ssl_meth=NULL;
72 static STACK_OF(CRYPTO_EX_DATA_FUNCS) *ssl_ctx_meth=NULL;
73 static int ssl_meth_num=0;
74 static int ssl_ctx_meth_num=0;
76 OPENSSL_GLOBAL SSL3_ENC_METHOD ssl3_undef_enc_method={
77 /* evil casts, but these functions are only called if there's a library bug */
78 (int (*)(SSL *,int))ssl_undefined_function,
79 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
80 ssl_undefined_function,
81 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
82 (int (*)(SSL*, int))ssl_undefined_function,
83 (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function
90 if (s->method == NULL)
92 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
100 #if 0 /* Disabled since version 1.10 of this file (early return not
101 * needed because SSL_clear is not called when doing renegotiation) */
102 /* This is set if we are doing dynamic renegotiation so keep
103 * the old cipher. It is sort of a SSL_clear_lite :-) */
104 if (s->new_session) return(1);
108 SSLerr(SSL_F_SSL_CLEAR,SSL_R_INTERNAL_ERROR);
113 state=s->state; /* Keep to check if we throw away the session-id */
116 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
118 s->version=s->method->version;
119 s->client_version=s->version;
120 s->rwstate=SSL_NOTHING;
121 s->rstate=SSL_ST_READ_HEADER;
123 s->read_ahead=s->ctx->read_ahead;
126 if (s->init_buf != NULL)
128 BUF_MEM_free(s->init_buf);
132 ssl_clear_cipher_ctx(s);
134 if (ssl_clear_bad_session(s))
136 SSL_SESSION_free(s->session);
143 /* Check to see if we were changed into a different method, if
144 * so, revert back if we are not doing session-id reuse. */
145 if ((s->session == NULL) && (s->method != s->ctx->method))
147 s->method->ssl_free(s);
148 s->method=s->ctx->method;
149 if (!s->method->ssl_new(s))
154 s->method->ssl_clear(s);
158 /** Used to change an SSL_CTXs default SSL method type */
159 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth)
161 STACK_OF(SSL_CIPHER) *sk;
165 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
166 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
167 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
169 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
175 SSL *SSL_new(SSL_CTX *ctx)
181 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
184 if (ctx->method == NULL)
186 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
190 s=(SSL *)OPENSSL_malloc(sizeof(SSL));
191 if (s == NULL) goto err;
192 memset(s,0,sizeof(SSL));
194 if (ctx->cert != NULL)
196 /* Earlier library versions used to copy the pointer to
197 * the CERT, not its contents; only when setting new
198 * parameters for the per-SSL copy, ssl_cert_new would be
199 * called (and the direct reference to the per-SSL_CTX
200 * settings would be lost, but those still were indirectly
201 * accessed for various purposes, and for that reason they
202 * used to be known as s->ctx->default_cert).
203 * Now we don't look at the SSL_CTX's CERT after having
204 * duplicated it once. */
206 s->cert = ssl_cert_dup(ctx->cert);
211 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
212 s->sid_ctx_length=ctx->sid_ctx_length;
213 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
214 s->verify_mode=ctx->verify_mode;
215 s->verify_depth=ctx->verify_depth;
216 s->verify_callback=ctx->default_verify_callback;
217 s->purpose = ctx->purpose;
218 s->trust = ctx->trust;
219 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
222 s->verify_result=X509_V_OK;
224 s->method=ctx->method;
226 if (!s->method->ssl_new(s))
229 s->quiet_shutdown=ctx->quiet_shutdown;
231 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
232 s->options=ctx->options;
234 s->read_ahead=ctx->read_ahead; /* used to happen in SSL_clear */
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 /* SSL_pending cannot work properly if read-ahead is enabled
580 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
581 * and it is impossible to fix since SSL_pending cannot report
582 * errors that may be observed while scanning the new data.
583 * (Note that SSL_pending() is often used as a boolean value,
584 * so we'd better not return -1.)
586 return(s->method->ssl_pending(s));
589 X509 *SSL_get_peer_certificate(SSL *s)
593 if ((s == NULL) || (s->session == NULL))
598 if (r == NULL) return(r);
600 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
605 STACK_OF(X509) *SSL_get_peer_cert_chain(SSL *s)
609 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
612 r=s->session->sess_cert->cert_chain;
614 /* If we are a client, cert_chain includes the peer's own
615 * certificate; if we are a server, it does not. */
620 /* Now in theory, since the calling process own 't' it should be safe to
621 * modify. We need to be able to read f without being hassled */
622 void SSL_copy_session_id(SSL *t,SSL *f)
626 /* Do we need to to SSL locking? */
627 SSL_set_session(t,SSL_get_session(f));
629 /* what if we are setup as SSLv2 but want to talk SSLv3 or
631 if (t->method != f->method)
633 t->method->ssl_free(t); /* cleanup current */
634 t->method=f->method; /* change method */
635 t->method->ssl_new(t); /* setup new */
641 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
646 if (tmp != NULL) ssl_cert_free(tmp);
647 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
650 /* Fix this so it checks all the valid key/cert options */
651 int SSL_CTX_check_private_key(SSL_CTX *ctx)
653 if ( (ctx == NULL) ||
654 (ctx->cert == NULL) ||
655 (ctx->cert->key->x509 == NULL))
657 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
660 if (ctx->cert->key->privatekey == NULL)
662 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
665 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
668 /* Fix this function so that it takes an optional type parameter */
669 int SSL_check_private_key(SSL *ssl)
673 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
676 if (ssl->cert == NULL)
678 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
681 if (ssl->cert->key->x509 == NULL)
683 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
686 if (ssl->cert->key->privatekey == NULL)
688 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
691 return(X509_check_private_key(ssl->cert->key->x509,
692 ssl->cert->key->privatekey));
695 int SSL_accept(SSL *s)
697 if (s->handshake_func == 0)
698 /* Not properly initialized yet */
699 SSL_set_accept_state(s);
701 return(s->method->ssl_accept(s));
704 int SSL_connect(SSL *s)
706 if (s->handshake_func == 0)
707 /* Not properly initialized yet */
708 SSL_set_connect_state(s);
710 return(s->method->ssl_connect(s));
713 long SSL_get_default_timeout(SSL *s)
715 return(s->method->get_timeout());
718 int SSL_read(SSL *s,char *buf,int num)
720 if (s->handshake_func == 0)
722 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
726 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
728 s->rwstate=SSL_NOTHING;
731 return(s->method->ssl_read(s,buf,num));
734 int SSL_peek(SSL *s,char *buf,int num)
736 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
740 return(s->method->ssl_peek(s,buf,num));
743 int SSL_write(SSL *s,const char *buf,int num)
745 if (s->handshake_func == 0)
747 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
751 if (s->shutdown & SSL_SENT_SHUTDOWN)
753 s->rwstate=SSL_NOTHING;
754 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
757 return(s->method->ssl_write(s,buf,num));
760 int SSL_shutdown(SSL *s)
762 /* Note that this function behaves differently from what one might
763 * expect. Return values are 0 for no success (yet),
764 * 1 for success; but calling it once is usually not enough,
765 * even if blocking I/O is used (see ssl3_shutdown).
768 if (s->handshake_func == 0)
770 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
774 if ((s != NULL) && !SSL_in_init(s))
775 return(s->method->ssl_shutdown(s));
780 int SSL_renegotiate(SSL *s)
783 return(s->method->ssl_renegotiate(s));
786 long SSL_ctrl(SSL *s,int cmd,long larg,char *parg)
792 case SSL_CTRL_GET_READ_AHEAD:
793 return(s->read_ahead);
794 case SSL_CTRL_SET_READ_AHEAD:
798 case SSL_CTRL_OPTIONS:
799 return(s->options|=larg);
801 return(s->mode|=larg);
803 return(s->method->ssl_ctrl(s,cmd,larg,parg));
807 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)())
812 return(s->method->ssl_callback_ctrl(s,cmd,fp));
816 struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
818 return ctx->sessions;
821 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg)
827 case SSL_CTRL_GET_READ_AHEAD:
828 return(ctx->read_ahead);
829 case SSL_CTRL_SET_READ_AHEAD:
831 ctx->read_ahead=larg;
834 case SSL_CTRL_SET_SESS_CACHE_SIZE:
835 l=ctx->session_cache_size;
836 ctx->session_cache_size=larg;
838 case SSL_CTRL_GET_SESS_CACHE_SIZE:
839 return(ctx->session_cache_size);
840 case SSL_CTRL_SET_SESS_CACHE_MODE:
841 l=ctx->session_cache_mode;
842 ctx->session_cache_mode=larg;
844 case SSL_CTRL_GET_SESS_CACHE_MODE:
845 return(ctx->session_cache_mode);
847 case SSL_CTRL_SESS_NUMBER:
848 return(ctx->sessions->num_items);
849 case SSL_CTRL_SESS_CONNECT:
850 return(ctx->stats.sess_connect);
851 case SSL_CTRL_SESS_CONNECT_GOOD:
852 return(ctx->stats.sess_connect_good);
853 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
854 return(ctx->stats.sess_connect_renegotiate);
855 case SSL_CTRL_SESS_ACCEPT:
856 return(ctx->stats.sess_accept);
857 case SSL_CTRL_SESS_ACCEPT_GOOD:
858 return(ctx->stats.sess_accept_good);
859 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
860 return(ctx->stats.sess_accept_renegotiate);
861 case SSL_CTRL_SESS_HIT:
862 return(ctx->stats.sess_hit);
863 case SSL_CTRL_SESS_CB_HIT:
864 return(ctx->stats.sess_cb_hit);
865 case SSL_CTRL_SESS_MISSES:
866 return(ctx->stats.sess_miss);
867 case SSL_CTRL_SESS_TIMEOUTS:
868 return(ctx->stats.sess_timeout);
869 case SSL_CTRL_SESS_CACHE_FULL:
870 return(ctx->stats.sess_cache_full);
871 case SSL_CTRL_OPTIONS:
872 return(ctx->options|=larg);
874 return(ctx->mode|=larg);
876 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
880 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)())
885 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
889 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
897 return((l > 0)?1:-1);
900 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
901 const SSL_CIPHER * const *bp)
905 l=(*ap)->id-(*bp)->id;
909 return((l > 0)?1:-1);
912 /** return a STACK of the ciphers available for the SSL and in order of
914 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s)
916 if ((s != NULL) && (s->cipher_list != NULL))
918 return(s->cipher_list);
920 else if ((s->ctx != NULL) &&
921 (s->ctx->cipher_list != NULL))
923 return(s->ctx->cipher_list);
928 /** return a STACK of the ciphers available for the SSL and in order of
930 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
932 if ((s != NULL) && (s->cipher_list_by_id != NULL))
934 return(s->cipher_list_by_id);
936 else if ((s != NULL) && (s->ctx != NULL) &&
937 (s->ctx->cipher_list_by_id != NULL))
939 return(s->ctx->cipher_list_by_id);
944 /** The old interface to get the same thing as SSL_get_ciphers() */
945 const char *SSL_get_cipher_list(SSL *s,int n)
948 STACK_OF(SSL_CIPHER) *sk;
950 if (s == NULL) return(NULL);
951 sk=SSL_get_ciphers(s);
952 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
954 c=sk_SSL_CIPHER_value(sk,n);
955 if (c == NULL) return(NULL);
959 /** specify the ciphers to be used by default by the SSL_CTX */
960 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
962 STACK_OF(SSL_CIPHER) *sk;
964 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
965 &ctx->cipher_list_by_id,str);
967 return((sk == NULL)?0:1);
970 /** specify the ciphers to be used by the SSL */
971 int SSL_set_cipher_list(SSL *s,const char *str)
973 STACK_OF(SSL_CIPHER) *sk;
975 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
976 &s->cipher_list_by_id,str);
978 return((sk == NULL)?0:1);
981 /* works well for SSLv2, not so good for SSLv3 */
982 char *SSL_get_shared_ciphers(SSL *s,char *buf,int len)
986 STACK_OF(SSL_CIPHER) *sk;
990 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
995 sk=s->session->ciphers;
996 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
998 /* Decrement for either the ':' or a '\0' */
1000 c=sk_SSL_CIPHER_value(sk,i);
1001 for (cp=c->name; *cp; )
1017 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
1023 if (sk == NULL) return(0);
1026 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1028 c=sk_SSL_CIPHER_value(sk,i);
1029 j=ssl_put_cipher_by_char(s,c,p);
1035 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1036 STACK_OF(SSL_CIPHER) **skp)
1039 STACK_OF(SSL_CIPHER) *sk;
1042 n=ssl_put_cipher_by_char(s,NULL,NULL);
1045 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1048 if ((skp == NULL) || (*skp == NULL))
1049 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1053 sk_SSL_CIPHER_zero(sk);
1056 for (i=0; i<num; i+=n)
1058 c=ssl_get_cipher_by_char(s,p);
1062 if (!sk_SSL_CIPHER_push(sk,c))
1064 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1074 if ((skp == NULL) || (*skp == NULL))
1075 sk_SSL_CIPHER_free(sk);
1079 unsigned long SSL_SESSION_hash(SSL_SESSION *a)
1084 ((unsigned int) a->session_id[0] )|
1085 ((unsigned int) a->session_id[1]<< 8L)|
1086 ((unsigned long)a->session_id[2]<<16L)|
1087 ((unsigned long)a->session_id[3]<<24L);
1091 int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
1093 if (a->ssl_version != b->ssl_version)
1095 if (a->session_id_length != b->session_id_length)
1097 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1100 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1106 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1110 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1112 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1115 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1119 memset(ret,0,sizeof(SSL_CTX));
1123 ret->cert_store=NULL;
1124 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1125 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1126 ret->session_cache_head=NULL;
1127 ret->session_cache_tail=NULL;
1129 /* We take the system default */
1130 ret->session_timeout=meth->get_timeout();
1132 ret->new_session_cb=NULL;
1133 ret->remove_session_cb=NULL;
1134 ret->get_session_cb=NULL;
1136 memset((char *)&ret->stats,0,sizeof(ret->stats));
1139 ret->quiet_shutdown=0;
1141 /* ret->cipher=NULL;*/
1142 /* ret->s2->challenge=NULL;
1143 ret->master_key=NULL;
1145 ret->s2->conn_id=NULL; */
1147 ret->info_callback=NULL;
1149 ret->app_verify_callback=NULL;
1150 ret->app_verify_arg=NULL;
1153 ret->verify_mode=SSL_VERIFY_NONE;
1154 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1155 ret->default_verify_callback=NULL;
1156 if ((ret->cert=ssl_cert_new()) == NULL)
1159 ret->default_passwd_callback=NULL;
1160 ret->default_passwd_callback_userdata=NULL;
1161 ret->client_cert_cb=NULL;
1163 ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp);
1164 if (ret->sessions == NULL) goto err;
1165 ret->cert_store=X509_STORE_new();
1166 if (ret->cert_store == NULL) goto err;
1168 ssl_create_cipher_list(ret->method,
1169 &ret->cipher_list,&ret->cipher_list_by_id,
1170 SSL_DEFAULT_CIPHER_LIST);
1171 if (ret->cipher_list == NULL
1172 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1174 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1178 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1180 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1183 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1185 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1188 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1190 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1194 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1197 CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data);
1199 ret->extra_certs=NULL;
1200 ret->comp_methods=SSL_COMP_get_compression_methods();
1204 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1206 if (ret != NULL) SSL_CTX_free(ret);
1210 static void SSL_COMP_free(SSL_COMP *comp)
1211 { OPENSSL_free(comp); }
1213 void SSL_CTX_free(SSL_CTX *a)
1217 if (a == NULL) return;
1219 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1221 REF_PRINT("SSL_CTX",a);
1227 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1231 CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data);
1233 if (a->sessions != NULL)
1235 SSL_CTX_flush_sessions(a,0);
1236 lh_free(a->sessions);
1238 if (a->cert_store != NULL)
1239 X509_STORE_free(a->cert_store);
1240 if (a->cipher_list != NULL)
1241 sk_SSL_CIPHER_free(a->cipher_list);
1242 if (a->cipher_list_by_id != NULL)
1243 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1244 if (a->cert != NULL)
1245 ssl_cert_free(a->cert);
1246 if (a->client_CA != NULL)
1247 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1248 if (a->extra_certs != NULL)
1249 sk_X509_pop_free(a->extra_certs,X509_free);
1250 if (a->comp_methods != NULL)
1251 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1255 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1257 ctx->default_passwd_callback=cb;
1260 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1262 ctx->default_passwd_callback_userdata=u;
1265 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg)
1268 * int (*cb)(X509_STORE_CTX *),
1270 * int (*cb)(X509_STORE_CTX *, void *arg)
1272 ctx->app_verify_callback=cb;
1273 ctx->app_verify_arg=arg; /* never used */
1276 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1278 ctx->verify_mode=mode;
1279 ctx->default_verify_callback=cb;
1280 /* This needs cleaning up EAY EAY EAY */
1281 X509_STORE_set_verify_cb_func(ctx->cert_store,cb);
1284 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1286 ctx->verify_depth=depth;
1289 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1292 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1293 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1294 int rsa_tmp_export,dh_tmp_export,kl;
1295 unsigned long mask,emask;
1297 if (c == NULL) return;
1299 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1302 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1303 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1304 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1306 rsa_tmp=rsa_tmp_export=0;
1309 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1310 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1311 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1313 dh_tmp=dh_tmp_export=0;
1316 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1317 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1318 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1319 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1320 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1321 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1322 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1323 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1324 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1325 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1326 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1327 /* FIX THIS EAY EAY EAY */
1328 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1329 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1335 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1336 rsa_tmp,rsa_tmp_export,dh_tmp,
1337 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1340 if (rsa_enc || (rsa_tmp && rsa_sign))
1342 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1346 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1347 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1348 (rsa_enc || rsa_sign || dsa_sign))
1350 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1351 (rsa_enc || rsa_sign || dsa_sign))
1361 if (dh_rsa) mask|=SSL_kDHr;
1362 if (dh_rsa_export) emask|=SSL_kDHr;
1364 if (dh_dsa) mask|=SSL_kDHd;
1365 if (dh_dsa_export) emask|=SSL_kDHd;
1367 if (rsa_enc || rsa_sign)
1383 c->export_mask=emask;
1387 /* THIS NEEDS CLEANING UP */
1388 X509 *ssl_get_server_send_cert(SSL *s)
1390 unsigned long alg,mask,kalg;
1395 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1396 alg=s->s3->tmp.new_cipher->algorithms;
1397 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1398 mask=is_export?c->export_mask:c->mask;
1399 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1401 if (kalg & SSL_kDHr)
1403 else if (kalg & SSL_kDHd)
1405 else if (kalg & SSL_aDSS)
1406 i=SSL_PKEY_DSA_SIGN;
1407 else if (kalg & SSL_aRSA)
1409 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1410 i=SSL_PKEY_RSA_SIGN;
1414 else /* if (kalg & SSL_aNULL) */
1416 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR);
1419 if (c->pkeys[i].x509 == NULL) return(NULL);
1420 return(c->pkeys[i].x509);
1423 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1428 alg=cipher->algorithms;
1431 if ((alg & SSL_aDSS) &&
1432 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1433 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1434 else if (alg & SSL_aRSA)
1436 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1437 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1438 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1439 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1443 else /* if (alg & SSL_aNULL) */
1445 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR);
1450 void ssl_update_cache(SSL *s,int mode)
1454 /* If the session_id_length is 0, we are not supposed to cache it,
1455 * and it would be rather hard to do anyway :-) */
1456 if (s->session->session_id_length == 0) return;
1458 if ((s->ctx->session_cache_mode & mode)
1460 && SSL_CTX_add_session(s->ctx,s->session)
1461 && (s->ctx->new_session_cb != NULL))
1463 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1464 if (!s->ctx->new_session_cb(s,s->session))
1465 SSL_SESSION_free(s->session);
1468 /* auto flush every 255 connections */
1469 i=s->ctx->session_cache_mode;
1470 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1471 ((i & mode) == mode))
1473 if ( (((mode & SSL_SESS_CACHE_CLIENT)
1474 ?s->ctx->stats.sess_connect_good
1475 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1477 SSL_CTX_flush_sessions(s->ctx,time(NULL));
1482 SSL_METHOD *SSL_get_ssl_method(SSL *s)
1487 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1492 if (s->method != meth)
1494 if (s->handshake_func != NULL)
1495 conn=(s->handshake_func == s->method->ssl_connect);
1497 if (s->method->version == meth->version)
1501 s->method->ssl_free(s);
1503 ret=s->method->ssl_new(s);
1507 s->handshake_func=meth->ssl_connect;
1509 s->handshake_func=meth->ssl_accept;
1514 int SSL_get_error(SSL *s,int i)
1520 if (i > 0) return(SSL_ERROR_NONE);
1522 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1523 * etc, where we do encode the error */
1524 if ((l=ERR_peek_error()) != 0)
1526 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1527 return(SSL_ERROR_SYSCALL);
1529 return(SSL_ERROR_SSL);
1532 if ((i < 0) && SSL_want_read(s))
1534 bio=SSL_get_rbio(s);
1535 if (BIO_should_read(bio))
1536 return(SSL_ERROR_WANT_READ);
1537 else if (BIO_should_write(bio))
1538 /* This one doesn't make too much sense ... We never try
1539 * to write to the rbio, and an application program where
1540 * rbio and wbio are separate couldn't even know what it
1542 * However if we ever set s->rwstate incorrectly
1543 * (so that we have SSL_want_read(s) instead of
1544 * SSL_want_write(s)) and rbio and wbio *are* the same,
1545 * this test works around that bug; so it might be safer
1547 return(SSL_ERROR_WANT_WRITE);
1548 else if (BIO_should_io_special(bio))
1550 reason=BIO_get_retry_reason(bio);
1551 if (reason == BIO_RR_CONNECT)
1552 return(SSL_ERROR_WANT_CONNECT);
1553 else if (reason == BIO_RR_ACCEPT)
1554 return(SSL_ERROR_WANT_ACCEPT);
1556 return(SSL_ERROR_SYSCALL); /* unknown */
1560 if ((i < 0) && SSL_want_write(s))
1562 bio=SSL_get_wbio(s);
1563 if (BIO_should_write(bio))
1564 return(SSL_ERROR_WANT_WRITE);
1565 else if (BIO_should_read(bio))
1566 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1567 return(SSL_ERROR_WANT_READ);
1568 else if (BIO_should_io_special(bio))
1570 reason=BIO_get_retry_reason(bio);
1571 if (reason == BIO_RR_CONNECT)
1572 return(SSL_ERROR_WANT_CONNECT);
1573 else if (reason == BIO_RR_ACCEPT)
1574 return(SSL_ERROR_WANT_ACCEPT);
1576 return(SSL_ERROR_SYSCALL);
1579 if ((i < 0) && SSL_want_x509_lookup(s))
1581 return(SSL_ERROR_WANT_X509_LOOKUP);
1586 if (s->version == SSL2_VERSION)
1588 /* assume it is the socket being closed */
1589 return(SSL_ERROR_ZERO_RETURN);
1593 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1594 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1595 return(SSL_ERROR_ZERO_RETURN);
1598 return(SSL_ERROR_SYSCALL);
1601 int SSL_do_handshake(SSL *s)
1605 if (s->handshake_func == NULL)
1607 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1611 s->method->ssl_renegotiate_check(s);
1613 if (SSL_in_init(s) || SSL_in_before(s))
1615 ret=s->handshake_func(s);
1620 /* For the next 2 functions, SSL_clear() sets shutdown and so
1621 * one of these calls will reset it */
1622 void SSL_set_accept_state(SSL *s)
1626 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1627 s->handshake_func=s->method->ssl_accept;
1628 /* clear the current cipher */
1629 ssl_clear_cipher_ctx(s);
1632 void SSL_set_connect_state(SSL *s)
1636 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1637 s->handshake_func=s->method->ssl_connect;
1638 /* clear the current cipher */
1639 ssl_clear_cipher_ctx(s);
1642 int ssl_undefined_function(SSL *s)
1644 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1648 SSL_METHOD *ssl_bad_method(int ver)
1650 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1654 const char *SSL_get_version(SSL *s)
1656 if (s->version == TLS1_VERSION)
1658 else if (s->version == SSL3_VERSION)
1660 else if (s->version == SSL2_VERSION)
1666 SSL *SSL_dup(SSL *s)
1668 STACK_OF(X509_NAME) *sk;
1673 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
1676 if (s->session != NULL)
1678 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1679 SSL_copy_session_id(ret,s);
1683 /* No session has been established yet, so we have to expect
1684 * that s->cert or ret->cert will be changed later --
1685 * they should not both point to the same object,
1686 * and thus we can't use SSL_copy_session_id. */
1688 ret->method = s->method;
1689 ret->method->ssl_new(ret);
1691 if (s->cert != NULL)
1693 ret->cert = ssl_cert_dup(s->cert);
1694 if (ret->cert == NULL)
1698 SSL_set_session_id_context(ret,
1699 s->sid_ctx, s->sid_ctx_length);
1702 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1703 SSL_set_verify(ret,SSL_get_verify_mode(s),
1704 SSL_get_verify_callback(s));
1705 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
1707 SSL_set_info_callback(ret,SSL_get_info_callback(s));
1709 ret->debug=s->debug;
1710 ret->options=s->options;
1712 /* copy app data, a little dangerous perhaps */
1713 if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data))
1716 /* setup rbio, and wbio */
1717 if (s->rbio != NULL)
1719 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1722 if (s->wbio != NULL)
1724 if (s->wbio != s->rbio)
1726 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1730 ret->wbio=ret->rbio;
1733 /* dup the cipher_list and cipher_list_by_id stacks */
1734 if (s->cipher_list != NULL)
1736 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
1739 if (s->cipher_list_by_id != NULL)
1740 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
1744 /* Dup the client_CA list */
1745 if (s->client_CA != NULL)
1747 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
1749 for (i=0; i<sk_X509_NAME_num(sk); i++)
1751 xn=sk_X509_NAME_value(sk,i);
1752 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
1760 ret->shutdown=s->shutdown;
1761 ret->state=s->state;
1762 ret->handshake_func=s->handshake_func;
1763 ret->server=s->server;
1768 if (ret != NULL) SSL_free(ret);
1774 void ssl_clear_cipher_ctx(SSL *s)
1776 if (s->enc_read_ctx != NULL)
1778 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
1779 OPENSSL_free(s->enc_read_ctx);
1780 s->enc_read_ctx=NULL;
1782 if (s->enc_write_ctx != NULL)
1784 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
1785 OPENSSL_free(s->enc_write_ctx);
1786 s->enc_write_ctx=NULL;
1788 if (s->expand != NULL)
1790 COMP_CTX_free(s->expand);
1793 if (s->compress != NULL)
1795 COMP_CTX_free(s->compress);
1800 /* Fix this function so that it takes an optional type parameter */
1801 X509 *SSL_get_certificate(SSL *s)
1803 if (s->cert != NULL)
1804 return(s->cert->key->x509);
1809 /* Fix this function so that it takes an optional type parameter */
1810 EVP_PKEY *SSL_get_privatekey(SSL *s)
1812 if (s->cert != NULL)
1813 return(s->cert->key->privatekey);
1818 SSL_CIPHER *SSL_get_current_cipher(SSL *s)
1820 if ((s->session != NULL) && (s->session->cipher != NULL))
1821 return(s->session->cipher);
1825 int ssl_init_wbio_buffer(SSL *s,int push)
1829 if (s->bbio == NULL)
1831 bbio=BIO_new(BIO_f_buffer());
1832 if (bbio == NULL) return(0);
1838 if (s->bbio == s->wbio)
1839 s->wbio=BIO_pop(s->wbio);
1841 (void)BIO_reset(bbio);
1842 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
1843 if (!BIO_set_read_buffer_size(bbio,1))
1845 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
1850 if (s->wbio != bbio)
1851 s->wbio=BIO_push(bbio,s->wbio);
1855 if (s->wbio == bbio)
1856 s->wbio=BIO_pop(bbio);
1861 void ssl_free_wbio_buffer(SSL *s)
1863 if (s->bbio == NULL) return;
1865 if (s->bbio == s->wbio)
1867 /* remove buffering */
1868 s->wbio=BIO_pop(s->wbio);
1869 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
1870 assert(s->wbio != NULL);
1877 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
1879 ctx->quiet_shutdown=mode;
1882 int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx)
1884 return(ctx->quiet_shutdown);
1887 void SSL_set_quiet_shutdown(SSL *s,int mode)
1889 s->quiet_shutdown=mode;
1892 int SSL_get_quiet_shutdown(SSL *s)
1894 return(s->quiet_shutdown);
1897 void SSL_set_shutdown(SSL *s,int mode)
1902 int SSL_get_shutdown(SSL *s)
1904 return(s->shutdown);
1907 int SSL_version(SSL *s)
1912 SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
1918 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
1920 return(X509_STORE_set_default_paths(ctx->cert_store));
1923 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
1926 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
1930 void SSL_set_info_callback(SSL *ssl,void (*cb)())
1932 ssl->info_callback=cb;
1935 void (*SSL_get_info_callback(SSL *ssl))(void)
1937 return((void (*)())ssl->info_callback);
1940 int SSL_state(SSL *ssl)
1945 void SSL_set_verify_result(SSL *ssl,long arg)
1947 ssl->verify_result=arg;
1950 long SSL_get_verify_result(SSL *ssl)
1952 return(ssl->verify_result);
1955 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1956 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1959 return(CRYPTO_get_ex_new_index(ssl_meth_num-1,
1960 &ssl_meth,argl,argp,new_func,dup_func,free_func));
1963 int SSL_set_ex_data(SSL *s,int idx,void *arg)
1965 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1968 void *SSL_get_ex_data(SSL *s,int idx)
1970 return(CRYPTO_get_ex_data(&s->ex_data,idx));
1973 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1974 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1977 return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1,
1978 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func));
1981 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
1983 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1986 void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx)
1988 return(CRYPTO_get_ex_data(&s->ex_data,idx));
1996 X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx)
1998 return(ctx->cert_store);
2001 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
2003 if (ctx->cert_store != NULL)
2004 X509_STORE_free(ctx->cert_store);
2005 ctx->cert_store=store;
2008 int SSL_want(SSL *s)
2014 * \brief Set the callback for generating temporary RSA keys.
2015 * \param ctx the SSL context.
2016 * \param cb the callback
2020 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2024 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2027 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2031 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2037 * \brief The RSA temporary key callback function.
2038 * \param ssl the SSL session.
2039 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2040 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2041 * of the required key in bits.
2042 * \return the temporary RSA key.
2043 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2046 RSA *cb(SSL *ssl,int is_export,int keylength)
2051 * \brief Set the callback for generating temporary DH keys.
2052 * \param ctx the SSL context.
2053 * \param dh the callback
2057 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2060 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2063 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2066 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2070 #if defined(_WINDLL) && defined(WIN16)
2071 #include "../crypto/bio/bss_file.c"
2074 IMPLEMENT_STACK_OF(SSL_CIPHER)
2075 IMPLEMENT_STACK_OF(SSL_COMP)