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 *)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;
605 /* Now in theory, since the calling process own 't' it should be safe to
606 * modify. We need to be able to read f without being hassled */
607 void SSL_copy_session_id(SSL *t,SSL *f)
611 /* Do we need to to SSL locking? */
612 SSL_set_session(t,SSL_get_session(f));
614 /* what if we are setup as SSLv2 but want to talk SSLv3 or
616 if (t->method != f->method)
618 t->method->ssl_free(t); /* cleanup current */
619 t->method=f->method; /* change method */
620 t->method->ssl_new(t); /* setup new */
626 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
631 if (tmp != NULL) ssl_cert_free(tmp);
632 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
635 /* Fix this so it checks all the valid key/cert options */
636 int SSL_CTX_check_private_key(SSL_CTX *ctx)
638 if ( (ctx == NULL) ||
639 (ctx->cert == NULL) ||
640 (ctx->cert->key->x509 == NULL))
642 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
645 if (ctx->cert->key->privatekey == NULL)
647 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
650 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
653 /* Fix this function so that it takes an optional type parameter */
654 int SSL_check_private_key(SSL *ssl)
658 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
661 if (ssl->cert == NULL)
663 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
666 if (ssl->cert->key->x509 == NULL)
668 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
671 if (ssl->cert->key->privatekey == NULL)
673 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
676 return(X509_check_private_key(ssl->cert->key->x509,
677 ssl->cert->key->privatekey));
680 int SSL_accept(SSL *s)
682 if (s->handshake_func == 0)
683 /* Not properly initialized yet */
684 SSL_set_accept_state(s);
686 return(s->method->ssl_accept(s));
689 int SSL_connect(SSL *s)
691 if (s->handshake_func == 0)
692 /* Not properly initialized yet */
693 SSL_set_connect_state(s);
695 return(s->method->ssl_connect(s));
698 long SSL_get_default_timeout(SSL *s)
700 return(s->method->get_timeout());
703 int SSL_read(SSL *s,char *buf,int num)
705 if (s->handshake_func == 0)
707 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
711 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
713 s->rwstate=SSL_NOTHING;
716 return(s->method->ssl_read(s,buf,num));
719 int SSL_peek(SSL *s,char *buf,int num)
721 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
725 return(s->method->ssl_peek(s,buf,num));
728 int SSL_write(SSL *s,const char *buf,int num)
730 if (s->handshake_func == 0)
732 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
736 if (s->shutdown & SSL_SENT_SHUTDOWN)
738 s->rwstate=SSL_NOTHING;
739 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
742 return(s->method->ssl_write(s,buf,num));
745 int SSL_shutdown(SSL *s)
747 /* Note that this function behaves differently from what one might
748 * expect. Return values are 0 for no success (yet),
749 * 1 for success; but calling it once is usually not enough,
750 * even if blocking I/O is used (see ssl3_shutdown).
753 if (s->handshake_func == 0)
755 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
759 if ((s != NULL) && !SSL_in_init(s))
760 return(s->method->ssl_shutdown(s));
765 int SSL_renegotiate(SSL *s)
768 return(s->method->ssl_renegotiate(s));
771 long SSL_ctrl(SSL *s,int cmd,long larg,char *parg)
777 case SSL_CTRL_GET_READ_AHEAD:
778 return(s->read_ahead);
779 case SSL_CTRL_SET_READ_AHEAD:
783 case SSL_CTRL_OPTIONS:
784 return(s->options|=larg);
786 return(s->mode|=larg);
788 return(s->method->ssl_ctrl(s,cmd,larg,parg));
792 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)())
797 return(s->method->ssl_callback_ctrl(s,cmd,fp));
801 struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
803 return ctx->sessions;
806 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg)
812 case SSL_CTRL_GET_READ_AHEAD:
813 return(ctx->read_ahead);
814 case SSL_CTRL_SET_READ_AHEAD:
816 ctx->read_ahead=larg;
819 case SSL_CTRL_SET_SESS_CACHE_SIZE:
820 l=ctx->session_cache_size;
821 ctx->session_cache_size=larg;
823 case SSL_CTRL_GET_SESS_CACHE_SIZE:
824 return(ctx->session_cache_size);
825 case SSL_CTRL_SET_SESS_CACHE_MODE:
826 l=ctx->session_cache_mode;
827 ctx->session_cache_mode=larg;
829 case SSL_CTRL_GET_SESS_CACHE_MODE:
830 return(ctx->session_cache_mode);
832 case SSL_CTRL_SESS_NUMBER:
833 return(ctx->sessions->num_items);
834 case SSL_CTRL_SESS_CONNECT:
835 return(ctx->stats.sess_connect);
836 case SSL_CTRL_SESS_CONNECT_GOOD:
837 return(ctx->stats.sess_connect_good);
838 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
839 return(ctx->stats.sess_connect_renegotiate);
840 case SSL_CTRL_SESS_ACCEPT:
841 return(ctx->stats.sess_accept);
842 case SSL_CTRL_SESS_ACCEPT_GOOD:
843 return(ctx->stats.sess_accept_good);
844 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
845 return(ctx->stats.sess_accept_renegotiate);
846 case SSL_CTRL_SESS_HIT:
847 return(ctx->stats.sess_hit);
848 case SSL_CTRL_SESS_CB_HIT:
849 return(ctx->stats.sess_cb_hit);
850 case SSL_CTRL_SESS_MISSES:
851 return(ctx->stats.sess_miss);
852 case SSL_CTRL_SESS_TIMEOUTS:
853 return(ctx->stats.sess_timeout);
854 case SSL_CTRL_SESS_CACHE_FULL:
855 return(ctx->stats.sess_cache_full);
856 case SSL_CTRL_OPTIONS:
857 return(ctx->options|=larg);
859 return(ctx->mode|=larg);
861 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
865 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)())
870 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
874 int ssl_cipher_id_cmp(SSL_CIPHER *a,SSL_CIPHER *b)
882 return((l > 0)?1:-1);
885 int ssl_cipher_ptr_id_cmp(SSL_CIPHER **ap,SSL_CIPHER **bp)
889 l=(*ap)->id-(*bp)->id;
893 return((l > 0)?1:-1);
896 /** return a STACK of the ciphers available for the SSL and in order of
898 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s)
900 if ((s != NULL) && (s->cipher_list != NULL))
902 return(s->cipher_list);
904 else if ((s->ctx != NULL) &&
905 (s->ctx->cipher_list != NULL))
907 return(s->ctx->cipher_list);
912 /** return a STACK of the ciphers available for the SSL and in order of
914 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
916 if ((s != NULL) && (s->cipher_list_by_id != NULL))
918 return(s->cipher_list_by_id);
920 else if ((s != NULL) && (s->ctx != NULL) &&
921 (s->ctx->cipher_list_by_id != NULL))
923 return(s->ctx->cipher_list_by_id);
928 /** The old interface to get the same thing as SSL_get_ciphers() */
929 const char *SSL_get_cipher_list(SSL *s,int n)
932 STACK_OF(SSL_CIPHER) *sk;
934 if (s == NULL) return(NULL);
935 sk=SSL_get_ciphers(s);
936 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
938 c=sk_SSL_CIPHER_value(sk,n);
939 if (c == NULL) return(NULL);
943 /** specify the ciphers to be used by default by the SSL_CTX */
944 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
946 STACK_OF(SSL_CIPHER) *sk;
948 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
949 &ctx->cipher_list_by_id,str);
951 return((sk == NULL)?0:1);
954 /** specify the ciphers to be used by the SSL */
955 int SSL_set_cipher_list(SSL *s,const char *str)
957 STACK_OF(SSL_CIPHER) *sk;
959 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
960 &s->cipher_list_by_id,str);
962 return((sk == NULL)?0:1);
965 /* works well for SSLv2, not so good for SSLv3 */
966 char *SSL_get_shared_ciphers(SSL *s,char *buf,int len)
970 STACK_OF(SSL_CIPHER) *sk;
974 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
979 sk=s->session->ciphers;
980 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
982 /* Decrement for either the ':' or a '\0' */
984 c=sk_SSL_CIPHER_value(sk,i);
985 for (cp=c->name; *cp; )
1001 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
1007 if (sk == NULL) return(0);
1010 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1012 c=sk_SSL_CIPHER_value(sk,i);
1013 j=ssl_put_cipher_by_char(s,c,p);
1019 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1020 STACK_OF(SSL_CIPHER) **skp)
1023 STACK_OF(SSL_CIPHER) *sk;
1026 n=ssl_put_cipher_by_char(s,NULL,NULL);
1029 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1032 if ((skp == NULL) || (*skp == NULL))
1033 sk=sk_SSL_CIPHER_new(NULL); /* change perhaps later */
1037 sk_SSL_CIPHER_zero(sk);
1040 for (i=0; i<num; i+=n)
1042 c=ssl_get_cipher_by_char(s,p);
1046 if (!sk_SSL_CIPHER_push(sk,c))
1048 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1058 if ((skp == NULL) || (*skp == NULL))
1059 sk_SSL_CIPHER_free(sk);
1063 unsigned long SSL_SESSION_hash(SSL_SESSION *a)
1068 ((unsigned int) a->session_id[0] )|
1069 ((unsigned int) a->session_id[1]<< 8L)|
1070 ((unsigned long)a->session_id[2]<<16L)|
1071 ((unsigned long)a->session_id[3]<<24L);
1075 int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
1077 if (a->ssl_version != b->ssl_version)
1079 if (a->session_id_length != b->session_id_length)
1081 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1084 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1090 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1094 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1096 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1099 ret=(SSL_CTX *)Malloc(sizeof(SSL_CTX));
1103 memset(ret,0,sizeof(SSL_CTX));
1107 ret->cert_store=NULL;
1108 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1109 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1110 ret->session_cache_head=NULL;
1111 ret->session_cache_tail=NULL;
1113 /* We take the system default */
1114 ret->session_timeout=meth->get_timeout();
1116 ret->new_session_cb=NULL;
1117 ret->remove_session_cb=NULL;
1118 ret->get_session_cb=NULL;
1120 memset((char *)&ret->stats,0,sizeof(ret->stats));
1123 ret->quiet_shutdown=0;
1125 /* ret->cipher=NULL;*/
1126 /* ret->s2->challenge=NULL;
1127 ret->master_key=NULL;
1129 ret->s2->conn_id=NULL; */
1131 ret->info_callback=NULL;
1133 ret->app_verify_callback=NULL;
1134 ret->app_verify_arg=NULL;
1137 ret->verify_mode=SSL_VERIFY_NONE;
1138 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1139 ret->default_verify_callback=NULL;
1140 if ((ret->cert=ssl_cert_new()) == NULL)
1143 ret->default_passwd_callback=NULL;
1144 ret->default_passwd_callback_userdata=NULL;
1145 ret->client_cert_cb=NULL;
1147 ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp);
1148 if (ret->sessions == NULL) goto err;
1149 ret->cert_store=X509_STORE_new();
1150 if (ret->cert_store == NULL) goto err;
1152 ssl_create_cipher_list(ret->method,
1153 &ret->cipher_list,&ret->cipher_list_by_id,
1154 SSL_DEFAULT_CIPHER_LIST);
1155 if (ret->cipher_list == NULL
1156 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1158 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1162 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1164 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1167 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1169 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1172 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1174 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1178 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1181 CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data);
1183 ret->extra_certs=NULL;
1184 ret->comp_methods=SSL_COMP_get_compression_methods();
1188 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1190 if (ret != NULL) SSL_CTX_free(ret);
1194 static void SSL_COMP_free(SSL_COMP *comp)
1197 void SSL_CTX_free(SSL_CTX *a)
1201 if (a == NULL) return;
1203 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1205 REF_PRINT("SSL_CTX",a);
1211 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1215 CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data);
1217 if (a->sessions != NULL)
1219 SSL_CTX_flush_sessions(a,0);
1220 lh_free(a->sessions);
1222 if (a->cert_store != NULL)
1223 X509_STORE_free(a->cert_store);
1224 if (a->cipher_list != NULL)
1225 sk_SSL_CIPHER_free(a->cipher_list);
1226 if (a->cipher_list_by_id != NULL)
1227 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1228 if (a->cert != NULL)
1229 ssl_cert_free(a->cert);
1230 if (a->client_CA != NULL)
1231 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1232 if (a->extra_certs != NULL)
1233 sk_X509_pop_free(a->extra_certs,X509_free);
1234 if (a->comp_methods != NULL)
1235 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1239 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1241 ctx->default_passwd_callback=cb;
1244 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1246 ctx->default_passwd_callback_userdata=u;
1249 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg)
1252 * int (*cb)(X509_STORE_CTX *),
1254 * int (*cb)(X509_STORE_CTX *, void *arg)
1256 ctx->app_verify_callback=cb;
1257 ctx->app_verify_arg=arg; /* never used */
1260 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1262 ctx->verify_mode=mode;
1263 ctx->default_verify_callback=cb;
1264 /* This needs cleaning up EAY EAY EAY */
1265 X509_STORE_set_verify_cb_func(ctx->cert_store,cb);
1268 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1270 ctx->verify_depth=depth;
1273 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1276 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1277 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1278 int rsa_tmp_export,dh_tmp_export,kl;
1279 unsigned long mask,emask;
1281 if (c == NULL) return;
1283 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1286 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1287 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1288 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1290 rsa_tmp=rsa_tmp_export=0;
1293 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1294 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1295 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1297 dh_tmp=dh_tmp_export=0;
1300 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1301 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1302 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1303 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1304 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1305 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1306 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1307 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1308 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1309 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1310 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1311 /* FIX THIS EAY EAY EAY */
1312 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1313 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1319 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1320 rsa_tmp,rsa_tmp_export,dh_tmp,
1321 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1324 if (rsa_enc || (rsa_tmp && rsa_sign))
1326 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1330 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1331 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1332 (rsa_enc || rsa_sign || dsa_sign))
1334 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1335 (rsa_enc || rsa_sign || dsa_sign))
1345 if (dh_rsa) mask|=SSL_kDHr;
1346 if (dh_rsa_export) emask|=SSL_kDHr;
1348 if (dh_dsa) mask|=SSL_kDHd;
1349 if (dh_dsa_export) emask|=SSL_kDHd;
1351 if (rsa_enc || rsa_sign)
1367 c->export_mask=emask;
1371 /* THIS NEEDS CLEANING UP */
1372 X509 *ssl_get_server_send_cert(SSL *s)
1374 unsigned long alg,mask,kalg;
1379 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1380 alg=s->s3->tmp.new_cipher->algorithms;
1381 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1382 mask=is_export?c->export_mask:c->mask;
1383 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1385 if (kalg & SSL_kDHr)
1387 else if (kalg & SSL_kDHd)
1389 else if (kalg & SSL_aDSS)
1390 i=SSL_PKEY_DSA_SIGN;
1391 else if (kalg & SSL_aRSA)
1393 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1394 i=SSL_PKEY_RSA_SIGN;
1398 else /* if (kalg & SSL_aNULL) */
1400 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR);
1403 if (c->pkeys[i].x509 == NULL) return(NULL);
1404 return(c->pkeys[i].x509);
1407 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1412 alg=cipher->algorithms;
1415 if ((alg & SSL_aDSS) &&
1416 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1417 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1418 else if (alg & SSL_aRSA)
1420 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1421 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1422 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1423 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1427 else /* if (alg & SSL_aNULL) */
1429 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR);
1434 void ssl_update_cache(SSL *s,int mode)
1438 /* If the session_id_length is 0, we are not supposed to cache it,
1439 * and it would be rather hard to do anyway :-) */
1440 if (s->session->session_id_length == 0) return;
1442 if ((s->ctx->session_cache_mode & mode)
1444 && SSL_CTX_add_session(s->ctx,s->session)
1445 && (s->ctx->new_session_cb != NULL))
1447 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1448 if (!s->ctx->new_session_cb(s,s->session))
1449 SSL_SESSION_free(s->session);
1452 /* auto flush every 255 connections */
1453 i=s->ctx->session_cache_mode;
1454 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1455 ((i & mode) == mode))
1457 if ( (((mode & SSL_SESS_CACHE_CLIENT)
1458 ?s->ctx->stats.sess_connect_good
1459 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1461 SSL_CTX_flush_sessions(s->ctx,time(NULL));
1466 SSL_METHOD *SSL_get_ssl_method(SSL *s)
1471 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1476 if (s->method != meth)
1478 if (s->handshake_func != NULL)
1479 conn=(s->handshake_func == s->method->ssl_connect);
1481 if (s->method->version == meth->version)
1485 s->method->ssl_free(s);
1487 ret=s->method->ssl_new(s);
1491 s->handshake_func=meth->ssl_connect;
1493 s->handshake_func=meth->ssl_accept;
1498 int SSL_get_error(SSL *s,int i)
1504 if (i > 0) return(SSL_ERROR_NONE);
1506 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1507 * etc, where we do encode the error */
1508 if ((l=ERR_peek_error()) != 0)
1510 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1511 return(SSL_ERROR_SYSCALL);
1513 return(SSL_ERROR_SSL);
1516 if ((i < 0) && SSL_want_read(s))
1518 bio=SSL_get_rbio(s);
1519 if (BIO_should_read(bio))
1520 return(SSL_ERROR_WANT_READ);
1521 else if (BIO_should_write(bio))
1522 /* This one doesn't make too much sense ... We never try
1523 * to write to the rbio, and an application program where
1524 * rbio and wbio are separate couldn't even know what it
1526 * However if we ever set s->rwstate incorrectly
1527 * (so that we have SSL_want_read(s) instead of
1528 * SSL_want_write(s)) and rbio and wbio *are* the same,
1529 * this test works around that bug; so it might be safer
1531 return(SSL_ERROR_WANT_WRITE);
1532 else if (BIO_should_io_special(bio))
1534 reason=BIO_get_retry_reason(bio);
1535 if (reason == BIO_RR_CONNECT)
1536 return(SSL_ERROR_WANT_CONNECT);
1538 return(SSL_ERROR_SYSCALL); /* unknown */
1542 if ((i < 0) && SSL_want_write(s))
1544 bio=SSL_get_wbio(s);
1545 if (BIO_should_write(bio))
1546 return(SSL_ERROR_WANT_WRITE);
1547 else if (BIO_should_read(bio))
1548 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1549 return(SSL_ERROR_WANT_READ);
1550 else if (BIO_should_io_special(bio))
1552 reason=BIO_get_retry_reason(bio);
1553 if (reason == BIO_RR_CONNECT)
1554 return(SSL_ERROR_WANT_CONNECT);
1556 return(SSL_ERROR_SYSCALL);
1559 if ((i < 0) && SSL_want_x509_lookup(s))
1561 return(SSL_ERROR_WANT_X509_LOOKUP);
1566 if (s->version == SSL2_VERSION)
1568 /* assume it is the socket being closed */
1569 return(SSL_ERROR_ZERO_RETURN);
1573 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1574 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1575 return(SSL_ERROR_ZERO_RETURN);
1578 return(SSL_ERROR_SYSCALL);
1581 int SSL_do_handshake(SSL *s)
1585 if (s->handshake_func == NULL)
1587 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1591 s->method->ssl_renegotiate_check(s);
1593 if (SSL_in_init(s) || SSL_in_before(s))
1595 ret=s->handshake_func(s);
1600 /* For the next 2 functions, SSL_clear() sets shutdown and so
1601 * one of these calls will reset it */
1602 void SSL_set_accept_state(SSL *s)
1606 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1607 s->handshake_func=s->method->ssl_accept;
1608 /* clear the current cipher */
1609 ssl_clear_cipher_ctx(s);
1612 void SSL_set_connect_state(SSL *s)
1616 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1617 s->handshake_func=s->method->ssl_connect;
1618 /* clear the current cipher */
1619 ssl_clear_cipher_ctx(s);
1622 int ssl_undefined_function(SSL *s)
1624 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1628 SSL_METHOD *ssl_bad_method(int ver)
1630 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1634 const char *SSL_get_version(SSL *s)
1636 if (s->version == TLS1_VERSION)
1638 else if (s->version == SSL3_VERSION)
1640 else if (s->version == SSL2_VERSION)
1646 SSL *SSL_dup(SSL *s)
1648 STACK_OF(X509_NAME) *sk;
1653 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
1656 if (s->session != NULL)
1658 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1659 SSL_copy_session_id(ret,s);
1663 /* No session has been established yet, so we have to expect
1664 * that s->cert or ret->cert will be changed later --
1665 * they should not both point to the same object,
1666 * and thus we can't use SSL_copy_session_id. */
1668 ret->method = s->method;
1669 ret->method->ssl_new(ret);
1671 if (s->cert != NULL)
1673 ret->cert = ssl_cert_dup(s->cert);
1674 if (ret->cert == NULL)
1678 SSL_set_session_id_context(ret,
1679 s->sid_ctx, s->sid_ctx_length);
1682 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1683 SSL_set_verify(ret,SSL_get_verify_mode(s),
1684 SSL_get_verify_callback(s));
1685 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
1687 SSL_set_info_callback(ret,SSL_get_info_callback(s));
1689 ret->debug=s->debug;
1690 ret->options=s->options;
1692 /* copy app data, a little dangerous perhaps */
1693 if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data))
1696 /* setup rbio, and wbio */
1697 if (s->rbio != NULL)
1699 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1702 if (s->wbio != NULL)
1704 if (s->wbio != s->rbio)
1706 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1710 ret->wbio=ret->rbio;
1713 /* dup the cipher_list and cipher_list_by_id stacks */
1714 if (s->cipher_list != NULL)
1716 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
1719 if (s->cipher_list_by_id != NULL)
1720 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
1724 /* Dup the client_CA list */
1725 if (s->client_CA != NULL)
1727 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
1729 for (i=0; i<sk_X509_NAME_num(sk); i++)
1731 xn=sk_X509_NAME_value(sk,i);
1732 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
1740 ret->shutdown=s->shutdown;
1741 ret->state=s->state;
1742 ret->handshake_func=s->handshake_func;
1743 ret->server=s->server;
1748 if (ret != NULL) SSL_free(ret);
1754 void ssl_clear_cipher_ctx(SSL *s)
1756 if (s->enc_read_ctx != NULL)
1758 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
1759 Free(s->enc_read_ctx);
1760 s->enc_read_ctx=NULL;
1762 if (s->enc_write_ctx != NULL)
1764 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
1765 Free(s->enc_write_ctx);
1766 s->enc_write_ctx=NULL;
1768 if (s->expand != NULL)
1770 COMP_CTX_free(s->expand);
1773 if (s->compress != NULL)
1775 COMP_CTX_free(s->compress);
1780 /* Fix this function so that it takes an optional type parameter */
1781 X509 *SSL_get_certificate(SSL *s)
1783 if (s->cert != NULL)
1784 return(s->cert->key->x509);
1789 /* Fix this function so that it takes an optional type parameter */
1790 EVP_PKEY *SSL_get_privatekey(SSL *s)
1792 if (s->cert != NULL)
1793 return(s->cert->key->privatekey);
1798 SSL_CIPHER *SSL_get_current_cipher(SSL *s)
1800 if ((s->session != NULL) && (s->session->cipher != NULL))
1801 return(s->session->cipher);
1805 int ssl_init_wbio_buffer(SSL *s,int push)
1809 if (s->bbio == NULL)
1811 bbio=BIO_new(BIO_f_buffer());
1812 if (bbio == NULL) return(0);
1818 if (s->bbio == s->wbio)
1819 s->wbio=BIO_pop(s->wbio);
1821 (void)BIO_reset(bbio);
1822 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
1823 if (!BIO_set_read_buffer_size(bbio,1))
1825 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
1830 if (s->wbio != bbio)
1831 s->wbio=BIO_push(bbio,s->wbio);
1835 if (s->wbio == bbio)
1836 s->wbio=BIO_pop(bbio);
1841 void ssl_free_wbio_buffer(SSL *s)
1845 if (s->bbio == NULL) return;
1847 if (s->bbio == s->wbio)
1849 /* remove buffering */
1850 under=BIO_pop(s->wbio);
1860 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
1862 ctx->quiet_shutdown=mode;
1865 int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx)
1867 return(ctx->quiet_shutdown);
1870 void SSL_set_quiet_shutdown(SSL *s,int mode)
1872 s->quiet_shutdown=mode;
1875 int SSL_get_quiet_shutdown(SSL *s)
1877 return(s->quiet_shutdown);
1880 void SSL_set_shutdown(SSL *s,int mode)
1885 int SSL_get_shutdown(SSL *s)
1887 return(s->shutdown);
1890 int SSL_version(SSL *s)
1895 SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
1901 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
1903 return(X509_STORE_set_default_paths(ctx->cert_store));
1906 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
1909 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
1913 void SSL_set_info_callback(SSL *ssl,void (*cb)())
1915 ssl->info_callback=cb;
1918 void (*SSL_get_info_callback(SSL *ssl))(void)
1920 return((void (*)())ssl->info_callback);
1923 int SSL_state(SSL *ssl)
1928 void SSL_set_verify_result(SSL *ssl,long arg)
1930 ssl->verify_result=arg;
1933 long SSL_get_verify_result(SSL *ssl)
1935 return(ssl->verify_result);
1938 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1939 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1942 return(CRYPTO_get_ex_new_index(ssl_meth_num-1,
1943 &ssl_meth,argl,argp,new_func,dup_func,free_func));
1946 int SSL_set_ex_data(SSL *s,int idx,void *arg)
1948 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1951 void *SSL_get_ex_data(SSL *s,int idx)
1953 return(CRYPTO_get_ex_data(&s->ex_data,idx));
1956 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1957 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1960 return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1,
1961 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func));
1964 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
1966 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1969 void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx)
1971 return(CRYPTO_get_ex_data(&s->ex_data,idx));
1979 X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx)
1981 return(ctx->cert_store);
1984 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
1986 if (ctx->cert_store != NULL)
1987 X509_STORE_free(ctx->cert_store);
1988 ctx->cert_store=store;
1991 int SSL_want(SSL *s)
1997 * \brief Set the callback for generating temporary RSA keys.
1998 * \param ctx the SSL context.
1999 * \param cb the callback
2003 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2007 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2010 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2014 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2020 * \brief The RSA temporary key callback function.
2021 * \param ssl the SSL session.
2022 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2023 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2024 * of the required key in bits.
2025 * \return the temporary RSA key.
2026 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2029 RSA *cb(SSL *ssl,int is_export,int keylength)
2034 * \brief Set the callback for generating temporary DH keys.
2035 * \param ctx the SSL context.
2036 * \param dh the callback
2040 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2043 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2046 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2049 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2053 #if defined(_WINDLL) && defined(WIN16)
2054 #include "../crypto/bio/bss_file.c"
2057 IMPLEMENT_STACK_OF(SSL_CIPHER)
2058 IMPLEMENT_STACK_OF(SSL_COMP)