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
85 union rsa_fn_to_char_u
88 RSA *(*fn_p)(SSL *, int, int);
96 DH *(*fn_p)(SSL *, int, int);
100 int SSL_clear(SSL *s)
104 if (s->method == NULL)
106 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
114 #if 0 /* Disabled since version 1.10 of this file (early return not
115 * needed because SSL_clear is not called when doing renegotiation) */
116 /* This is set if we are doing dynamic renegotiation so keep
117 * the old cipher. It is sort of a SSL_clear_lite :-) */
118 if (s->new_session) return(1);
122 SSLerr(SSL_F_SSL_CLEAR,SSL_R_INTERNAL_ERROR);
127 state=s->state; /* Keep to check if we throw away the session-id */
130 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
132 s->version=s->method->version;
133 s->client_version=s->version;
134 s->rwstate=SSL_NOTHING;
135 s->rstate=SSL_ST_READ_HEADER;
136 s->read_ahead=s->ctx->read_ahead;
138 if (s->init_buf != NULL)
140 BUF_MEM_free(s->init_buf);
144 ssl_clear_cipher_ctx(s);
146 if (ssl_clear_bad_session(s))
148 SSL_SESSION_free(s->session);
155 /* Check to see if we were changed into a different method, if
156 * so, revert back if we are not doing session-id reuse. */
157 if ((s->session == NULL) && (s->method != s->ctx->method))
159 s->method->ssl_free(s);
160 s->method=s->ctx->method;
161 if (!s->method->ssl_new(s))
166 s->method->ssl_clear(s);
170 /** Used to change an SSL_CTXs default SSL method type */
171 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth)
173 STACK_OF(SSL_CIPHER) *sk;
177 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
178 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
179 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
181 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
187 SSL *SSL_new(SSL_CTX *ctx)
193 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
196 if (ctx->method == NULL)
198 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
202 s=(SSL *)Malloc(sizeof(SSL));
203 if (s == NULL) goto err;
204 memset(s,0,sizeof(SSL));
206 if (ctx->cert != NULL)
208 /* Earlier library versions used to copy the pointer to
209 * the CERT, not its contents; only when setting new
210 * parameters for the per-SSL copy, ssl_cert_new would be
211 * called (and the direct reference to the per-SSL_CTX
212 * settings would be lost, but those still were indirectly
213 * accessed for various purposes, and for that reason they
214 * used to be known as s->ctx->default_cert).
215 * Now we don't look at the SSL_CTX's CERT after having
216 * duplicated it once. */
218 s->cert = ssl_cert_dup(ctx->cert);
223 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
224 s->sid_ctx_length=ctx->sid_ctx_length;
225 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
226 s->verify_mode=ctx->verify_mode;
227 s->verify_depth=ctx->verify_depth;
228 s->verify_callback=ctx->default_verify_callback;
229 s->purpose = ctx->purpose;
230 s->trust = ctx->trust;
231 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
234 s->verify_result=X509_V_OK;
236 s->method=ctx->method;
238 if (!s->method->ssl_new(s))
241 s->quiet_shutdown=ctx->quiet_shutdown;
243 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
244 s->options=ctx->options;
248 CRYPTO_new_ex_data(ssl_meth,s,&s->ex_data);
255 ssl_cert_free(s->cert);
257 SSL_CTX_free(s->ctx); /* decrement reference count */
260 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
264 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
265 unsigned int sid_ctx_len)
267 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
269 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
272 ctx->sid_ctx_length=sid_ctx_len;
273 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
278 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
279 unsigned int sid_ctx_len)
281 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
283 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
286 ssl->sid_ctx_length=sid_ctx_len;
287 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
292 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
294 if(X509_PURPOSE_get_by_id(purpose) == -1) {
295 SSLerr(SSL_F_SSL_CTX_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
298 s->purpose = purpose;
302 int SSL_set_purpose(SSL *s, int purpose)
304 if(X509_PURPOSE_get_by_id(purpose) == -1) {
305 SSLerr(SSL_F_SSL_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
308 s->purpose = purpose;
312 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
314 if(X509_TRUST_get_by_id(trust) == -1) {
315 SSLerr(SSL_F_SSL_CTX_SET_TRUST, SSL_R_INVALID_TRUST);
322 int SSL_set_trust(SSL *s, int trust)
324 if(X509_TRUST_get_by_id(trust) == -1) {
325 SSLerr(SSL_F_SSL_SET_TRUST, SSL_R_INVALID_TRUST);
332 void SSL_free(SSL *s)
339 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
347 fprintf(stderr,"SSL_free, bad reference count\n");
352 CRYPTO_free_ex_data(ssl_meth,(char *)s,&s->ex_data);
356 /* If the buffering BIO is in place, pop it off */
357 if (s->bbio == s->wbio)
359 s->wbio=BIO_pop(s->wbio);
365 BIO_free_all(s->rbio);
366 if ((s->wbio != NULL) && (s->wbio != s->rbio))
367 BIO_free_all(s->wbio);
369 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
371 /* add extra stuff */
372 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
373 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
375 /* Make the next call work :-) */
376 if (s->session != NULL)
378 ssl_clear_bad_session(s);
379 SSL_SESSION_free(s->session);
382 ssl_clear_cipher_ctx(s);
384 if (s->cert != NULL) ssl_cert_free(s->cert);
385 /* Free up if allocated */
387 if (s->ctx) SSL_CTX_free(s->ctx);
389 if (s->client_CA != NULL)
390 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
392 if (s->method != NULL) s->method->ssl_free(s);
397 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
399 /* If the output buffering BIO is still in place, remove it
403 if (s->wbio == s->bbio)
405 s->wbio=s->wbio->next_bio;
406 s->bbio->next_bio=NULL;
409 if ((s->rbio != NULL) && (s->rbio != rbio))
410 BIO_free_all(s->rbio);
411 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
412 BIO_free_all(s->wbio);
417 BIO *SSL_get_rbio(SSL *s)
420 BIO *SSL_get_wbio(SSL *s)
423 int SSL_get_fd(SSL *s)
429 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
436 int SSL_set_fd(SSL *s,int fd)
441 bio=BIO_new(BIO_s_socket());
445 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
448 BIO_set_fd(bio,fd,BIO_NOCLOSE);
449 SSL_set_bio(s,bio,bio);
455 int SSL_set_wfd(SSL *s,int fd)
460 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
461 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
463 bio=BIO_new(BIO_s_socket());
466 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
467 BIO_set_fd(bio,fd,BIO_NOCLOSE);
468 SSL_set_bio(s,SSL_get_rbio(s),bio);
471 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
477 int SSL_set_rfd(SSL *s,int fd)
482 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
483 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
485 bio=BIO_new(BIO_s_socket());
489 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
492 BIO_set_fd(bio,fd,BIO_NOCLOSE);
493 SSL_set_bio(s,bio,SSL_get_wbio(s));
496 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
504 /* return length of latest Finished message we sent, copy to 'buf' */
505 size_t SSL_get_finished(SSL *s, void *buf, size_t count)
511 ret = s->s3->tmp.finish_md_len;
514 memcpy(buf, s->s3->tmp.finish_md, count);
519 /* return length of latest Finished message we expected, copy to 'buf' */
520 size_t SSL_get_peer_finished(SSL *s, void *buf, size_t count)
526 ret = s->s3->tmp.peer_finish_md_len;
529 memcpy(buf, s->s3->tmp.peer_finish_md, count);
535 int SSL_get_verify_mode(SSL *s)
537 return(s->verify_mode);
540 int SSL_get_verify_depth(SSL *s)
542 return(s->verify_depth);
545 int (*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *)
547 return(s->verify_callback);
550 int SSL_CTX_get_verify_mode(SSL_CTX *ctx)
552 return(ctx->verify_mode);
555 int SSL_CTX_get_verify_depth(SSL_CTX *ctx)
557 return(ctx->verify_depth);
560 int (*SSL_CTX_get_verify_callback(SSL_CTX *ctx))(int,X509_STORE_CTX *)
562 return(ctx->default_verify_callback);
565 void SSL_set_verify(SSL *s,int mode,
566 int (*callback)(int ok,X509_STORE_CTX *ctx))
569 if (callback != NULL)
570 s->verify_callback=callback;
573 void SSL_set_verify_depth(SSL *s,int depth)
575 s->verify_depth=depth;
578 void SSL_set_read_ahead(SSL *s,int yes)
583 int SSL_get_read_ahead(SSL *s)
585 return(s->read_ahead);
588 int SSL_pending(SSL *s)
590 return(s->method->ssl_pending(s));
593 X509 *SSL_get_peer_certificate(SSL *s)
597 if ((s == NULL) || (s->session == NULL))
602 if (r == NULL) return(r);
604 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
609 STACK_OF(X509) *SSL_get_peer_cert_chain(SSL *s)
613 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
616 r=s->session->sess_cert->cert_chain;
621 /* Now in theory, since the calling process own 't' it should be safe to
622 * modify. We need to be able to read f without being hassled */
623 void SSL_copy_session_id(SSL *t,SSL *f)
627 /* Do we need to to SSL locking? */
628 SSL_set_session(t,SSL_get_session(f));
630 /* what if we are setup as SSLv2 but want to talk SSLv3 or
632 if (t->method != f->method)
634 t->method->ssl_free(t); /* cleanup current */
635 t->method=f->method; /* change method */
636 t->method->ssl_new(t); /* setup new */
642 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
647 if (tmp != NULL) ssl_cert_free(tmp);
648 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
651 /* Fix this so it checks all the valid key/cert options */
652 int SSL_CTX_check_private_key(SSL_CTX *ctx)
654 if ( (ctx == NULL) ||
655 (ctx->cert == NULL) ||
656 (ctx->cert->key->x509 == NULL))
658 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
661 if (ctx->cert->key->privatekey == NULL)
663 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
666 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
669 /* Fix this function so that it takes an optional type parameter */
670 int SSL_check_private_key(SSL *ssl)
674 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
677 if (ssl->cert == NULL)
679 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
682 if (ssl->cert->key->x509 == NULL)
684 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
687 if (ssl->cert->key->privatekey == NULL)
689 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
692 return(X509_check_private_key(ssl->cert->key->x509,
693 ssl->cert->key->privatekey));
696 int SSL_accept(SSL *s)
698 if (s->handshake_func == 0)
699 /* Not properly initialized yet */
700 SSL_set_accept_state(s);
702 return(s->method->ssl_accept(s));
705 int SSL_connect(SSL *s)
707 if (s->handshake_func == 0)
708 /* Not properly initialized yet */
709 SSL_set_connect_state(s);
711 return(s->method->ssl_connect(s));
714 long SSL_get_default_timeout(SSL *s)
716 return(s->method->get_timeout());
719 int SSL_read(SSL *s,char *buf,int num)
721 if (s->handshake_func == 0)
723 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
727 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
729 s->rwstate=SSL_NOTHING;
732 return(s->method->ssl_read(s,buf,num));
735 int SSL_peek(SSL *s,char *buf,int num)
737 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
741 return(s->method->ssl_peek(s,buf,num));
744 int SSL_write(SSL *s,const char *buf,int num)
746 if (s->handshake_func == 0)
748 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
752 if (s->shutdown & SSL_SENT_SHUTDOWN)
754 s->rwstate=SSL_NOTHING;
755 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
758 return(s->method->ssl_write(s,buf,num));
761 int SSL_shutdown(SSL *s)
763 /* Note that this function behaves differently from what one might
764 * expect. Return values are 0 for no success (yet),
765 * 1 for success; but calling it once is usually not enough,
766 * even if blocking I/O is used (see ssl3_shutdown).
769 if (s->handshake_func == 0)
771 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
775 if ((s != NULL) && !SSL_in_init(s))
776 return(s->method->ssl_shutdown(s));
781 int SSL_renegotiate(SSL *s)
784 return(s->method->ssl_renegotiate(s));
787 long SSL_ctrl(SSL *s,int cmd,long larg,char *parg)
793 case SSL_CTRL_GET_READ_AHEAD:
794 return(s->read_ahead);
795 case SSL_CTRL_SET_READ_AHEAD:
799 case SSL_CTRL_OPTIONS:
800 return(s->options|=larg);
802 return(s->mode|=larg);
804 return(s->method->ssl_ctrl(s,cmd,larg,parg));
808 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)())
813 return(s->method->ssl_callback_ctrl(s,cmd,fp));
817 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg)
823 case SSL_CTRL_GET_READ_AHEAD:
824 return(ctx->read_ahead);
825 case SSL_CTRL_SET_READ_AHEAD:
827 ctx->read_ahead=larg;
830 case SSL_CTRL_SET_SESS_CACHE_SIZE:
831 l=ctx->session_cache_size;
832 ctx->session_cache_size=larg;
834 case SSL_CTRL_GET_SESS_CACHE_SIZE:
835 return(ctx->session_cache_size);
836 case SSL_CTRL_SET_SESS_CACHE_MODE:
837 l=ctx->session_cache_mode;
838 ctx->session_cache_mode=larg;
840 case SSL_CTRL_GET_SESS_CACHE_MODE:
841 return(ctx->session_cache_mode);
843 case SSL_CTRL_SESS_NUMBER:
844 return(ctx->sessions->num_items);
845 case SSL_CTRL_SESS_CONNECT:
846 return(ctx->stats.sess_connect);
847 case SSL_CTRL_SESS_CONNECT_GOOD:
848 return(ctx->stats.sess_connect_good);
849 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
850 return(ctx->stats.sess_connect_renegotiate);
851 case SSL_CTRL_SESS_ACCEPT:
852 return(ctx->stats.sess_accept);
853 case SSL_CTRL_SESS_ACCEPT_GOOD:
854 return(ctx->stats.sess_accept_good);
855 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
856 return(ctx->stats.sess_accept_renegotiate);
857 case SSL_CTRL_SESS_HIT:
858 return(ctx->stats.sess_hit);
859 case SSL_CTRL_SESS_CB_HIT:
860 return(ctx->stats.sess_cb_hit);
861 case SSL_CTRL_SESS_MISSES:
862 return(ctx->stats.sess_miss);
863 case SSL_CTRL_SESS_TIMEOUTS:
864 return(ctx->stats.sess_timeout);
865 case SSL_CTRL_SESS_CACHE_FULL:
866 return(ctx->stats.sess_cache_full);
867 case SSL_CTRL_OPTIONS:
868 return(ctx->options|=larg);
870 return(ctx->mode|=larg);
872 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
876 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)())
881 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
885 int ssl_cipher_id_cmp(SSL_CIPHER *a,SSL_CIPHER *b)
893 return((l > 0)?1:-1);
896 int ssl_cipher_ptr_id_cmp(SSL_CIPHER **ap,SSL_CIPHER **bp)
900 l=(*ap)->id-(*bp)->id;
904 return((l > 0)?1:-1);
907 /** return a STACK of the ciphers available for the SSL and in order of
909 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s)
911 if ((s != NULL) && (s->cipher_list != NULL))
913 return(s->cipher_list);
915 else if ((s->ctx != NULL) &&
916 (s->ctx->cipher_list != NULL))
918 return(s->ctx->cipher_list);
923 /** return a STACK of the ciphers available for the SSL and in order of
925 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
927 if ((s != NULL) && (s->cipher_list_by_id != NULL))
929 return(s->cipher_list_by_id);
931 else if ((s != NULL) && (s->ctx != NULL) &&
932 (s->ctx->cipher_list_by_id != NULL))
934 return(s->ctx->cipher_list_by_id);
939 /** The old interface to get the same thing as SSL_get_ciphers() */
940 const char *SSL_get_cipher_list(SSL *s,int n)
943 STACK_OF(SSL_CIPHER) *sk;
945 if (s == NULL) return(NULL);
946 sk=SSL_get_ciphers(s);
947 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
949 c=sk_SSL_CIPHER_value(sk,n);
950 if (c == NULL) return(NULL);
954 /** specify the ciphers to be used by default by the SSL_CTX */
955 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
957 STACK_OF(SSL_CIPHER) *sk;
959 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
960 &ctx->cipher_list_by_id,str);
962 return((sk == NULL)?0:1);
965 /** specify the ciphers to be used by the SSL */
966 int SSL_set_cipher_list(SSL *s,const char *str)
968 STACK_OF(SSL_CIPHER) *sk;
970 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
971 &s->cipher_list_by_id,str);
973 return((sk == NULL)?0:1);
976 /* works well for SSLv2, not so good for SSLv3 */
977 char *SSL_get_shared_ciphers(SSL *s,char *buf,int len)
981 STACK_OF(SSL_CIPHER) *sk;
985 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
990 sk=s->session->ciphers;
991 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
993 /* Decrement for either the ':' or a '\0' */
995 c=sk_SSL_CIPHER_value(sk,i);
996 for (cp=c->name; *cp; )
1012 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
1018 if (sk == NULL) return(0);
1021 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1023 c=sk_SSL_CIPHER_value(sk,i);
1024 j=ssl_put_cipher_by_char(s,c,p);
1030 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1031 STACK_OF(SSL_CIPHER) **skp)
1034 STACK_OF(SSL_CIPHER) *sk;
1037 n=ssl_put_cipher_by_char(s,NULL,NULL);
1040 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1043 if ((skp == NULL) || (*skp == NULL))
1044 sk=sk_SSL_CIPHER_new(NULL); /* change perhaps later */
1048 sk_SSL_CIPHER_zero(sk);
1051 for (i=0; i<num; i+=n)
1053 c=ssl_get_cipher_by_char(s,p);
1057 if (!sk_SSL_CIPHER_push(sk,c))
1059 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1069 if ((skp == NULL) || (*skp == NULL))
1070 sk_SSL_CIPHER_free(sk);
1074 unsigned long SSL_SESSION_hash(SSL_SESSION *a)
1079 ((unsigned int) a->session_id[0] )|
1080 ((unsigned int) a->session_id[1]<< 8L)|
1081 ((unsigned long)a->session_id[2]<<16L)|
1082 ((unsigned long)a->session_id[3]<<24L);
1086 int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
1088 if (a->ssl_version != b->ssl_version)
1090 if (a->session_id_length != b->session_id_length)
1092 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1095 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1101 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1105 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1107 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1110 ret=(SSL_CTX *)Malloc(sizeof(SSL_CTX));
1114 memset(ret,0,sizeof(SSL_CTX));
1118 ret->cert_store=NULL;
1119 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1120 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1121 ret->session_cache_head=NULL;
1122 ret->session_cache_tail=NULL;
1124 /* We take the system default */
1125 ret->session_timeout=meth->get_timeout();
1127 ret->new_session_cb=NULL;
1128 ret->remove_session_cb=NULL;
1129 ret->get_session_cb=NULL;
1131 memset((char *)&ret->stats,0,sizeof(ret->stats));
1134 ret->quiet_shutdown=0;
1136 /* ret->cipher=NULL;*/
1137 /* ret->s2->challenge=NULL;
1138 ret->master_key=NULL;
1140 ret->s2->conn_id=NULL; */
1142 ret->info_callback=NULL;
1144 ret->app_verify_callback=NULL;
1145 ret->app_verify_arg=NULL;
1148 ret->verify_mode=SSL_VERIFY_NONE;
1149 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1150 ret->default_verify_callback=NULL;
1151 if ((ret->cert=ssl_cert_new()) == NULL)
1154 ret->default_passwd_callback=NULL;
1155 ret->default_passwd_callback_userdata=NULL;
1156 ret->client_cert_cb=NULL;
1158 ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp);
1159 if (ret->sessions == NULL) goto err;
1160 ret->cert_store=X509_STORE_new();
1161 if (ret->cert_store == NULL) goto err;
1163 ssl_create_cipher_list(ret->method,
1164 &ret->cipher_list,&ret->cipher_list_by_id,
1165 SSL_DEFAULT_CIPHER_LIST);
1166 if (ret->cipher_list == NULL
1167 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1169 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1173 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1175 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1178 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1180 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1183 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1185 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1189 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1192 CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data);
1194 ret->extra_certs=NULL;
1195 ret->comp_methods=SSL_COMP_get_compression_methods();
1199 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1201 if (ret != NULL) SSL_CTX_free(ret);
1205 static void SSL_COMP_free(SSL_COMP *comp)
1208 void SSL_CTX_free(SSL_CTX *a)
1212 if (a == NULL) return;
1214 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1216 REF_PRINT("SSL_CTX",a);
1222 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1226 CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data);
1228 if (a->sessions != NULL)
1230 SSL_CTX_flush_sessions(a,0);
1231 lh_free(a->sessions);
1233 if (a->cert_store != NULL)
1234 X509_STORE_free(a->cert_store);
1235 if (a->cipher_list != NULL)
1236 sk_SSL_CIPHER_free(a->cipher_list);
1237 if (a->cipher_list_by_id != NULL)
1238 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1239 if (a->cert != NULL)
1240 ssl_cert_free(a->cert);
1241 if (a->client_CA != NULL)
1242 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1243 if (a->extra_certs != NULL)
1244 sk_X509_pop_free(a->extra_certs,X509_free);
1245 if (a->comp_methods != NULL)
1246 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1250 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1252 ctx->default_passwd_callback=cb;
1255 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1257 ctx->default_passwd_callback_userdata=u;
1260 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg)
1263 * int (*cb)(X509_STORE_CTX *),
1265 * int (*cb)(X509_STORE_CTX *, void *arg)
1267 ctx->app_verify_callback=cb;
1268 ctx->app_verify_arg=arg; /* never used */
1271 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1273 ctx->verify_mode=mode;
1274 ctx->default_verify_callback=cb;
1275 /* This needs cleaning up EAY EAY EAY */
1276 X509_STORE_set_verify_cb_func(ctx->cert_store,cb);
1279 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1281 ctx->verify_depth=depth;
1284 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1287 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1288 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1289 int rsa_tmp_export,dh_tmp_export,kl;
1290 unsigned long mask,emask;
1292 if (c == NULL) return;
1294 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1297 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1298 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1299 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1301 rsa_tmp=rsa_tmp_export=0;
1304 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1305 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1306 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1308 dh_tmp=dh_tmp_export=0;
1311 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1312 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1313 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1314 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1315 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1316 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1317 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1318 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1319 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1320 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1321 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1322 /* FIX THIS EAY EAY EAY */
1323 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1324 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1330 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1331 rsa_tmp,rsa_tmp_export,dh_tmp,
1332 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1335 if (rsa_enc || (rsa_tmp && rsa_sign))
1337 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1341 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1342 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1343 (rsa_enc || rsa_sign || dsa_sign))
1345 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1346 (rsa_enc || rsa_sign || dsa_sign))
1356 if (dh_rsa) mask|=SSL_kDHr;
1357 if (dh_rsa_export) emask|=SSL_kDHr;
1359 if (dh_dsa) mask|=SSL_kDHd;
1360 if (dh_dsa_export) emask|=SSL_kDHd;
1362 if (rsa_enc || rsa_sign)
1378 c->export_mask=emask;
1382 /* THIS NEEDS CLEANING UP */
1383 X509 *ssl_get_server_send_cert(SSL *s)
1385 unsigned long alg,mask,kalg;
1390 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1391 alg=s->s3->tmp.new_cipher->algorithms;
1392 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1393 mask=is_export?c->export_mask:c->mask;
1394 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1396 if (kalg & SSL_kDHr)
1398 else if (kalg & SSL_kDHd)
1400 else if (kalg & SSL_aDSS)
1401 i=SSL_PKEY_DSA_SIGN;
1402 else if (kalg & SSL_aRSA)
1404 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1405 i=SSL_PKEY_RSA_SIGN;
1409 else /* if (kalg & SSL_aNULL) */
1411 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR);
1414 if (c->pkeys[i].x509 == NULL) return(NULL);
1415 return(c->pkeys[i].x509);
1418 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1423 alg=cipher->algorithms;
1426 if ((alg & SSL_aDSS) &&
1427 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1428 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1429 else if (alg & SSL_aRSA)
1431 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1432 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1433 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1434 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1438 else /* if (alg & SSL_aNULL) */
1440 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR);
1445 void ssl_update_cache(SSL *s,int mode)
1449 /* If the session_id_length is 0, we are not supposed to cache it,
1450 * and it would be rather hard to do anyway :-) */
1451 if (s->session->session_id_length == 0) return;
1453 if ((s->ctx->session_cache_mode & mode)
1455 && SSL_CTX_add_session(s->ctx,s->session)
1456 && (s->ctx->new_session_cb != NULL))
1458 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1459 if (!s->ctx->new_session_cb(s,s->session))
1460 SSL_SESSION_free(s->session);
1463 /* auto flush every 255 connections */
1464 i=s->ctx->session_cache_mode;
1465 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1466 ((i & mode) == mode))
1468 if ( (((mode & SSL_SESS_CACHE_CLIENT)
1469 ?s->ctx->stats.sess_connect_good
1470 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1472 SSL_CTX_flush_sessions(s->ctx,time(NULL));
1477 SSL_METHOD *SSL_get_ssl_method(SSL *s)
1482 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1487 if (s->method != meth)
1489 if (s->handshake_func != NULL)
1490 conn=(s->handshake_func == s->method->ssl_connect);
1492 if (s->method->version == meth->version)
1496 s->method->ssl_free(s);
1498 ret=s->method->ssl_new(s);
1502 s->handshake_func=meth->ssl_connect;
1504 s->handshake_func=meth->ssl_accept;
1509 int SSL_get_error(SSL *s,int i)
1515 if (i > 0) return(SSL_ERROR_NONE);
1517 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1518 * etc, where we do encode the error */
1519 if ((l=ERR_peek_error()) != 0)
1521 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1522 return(SSL_ERROR_SYSCALL);
1524 return(SSL_ERROR_SSL);
1527 if ((i < 0) && SSL_want_read(s))
1529 bio=SSL_get_rbio(s);
1530 if (BIO_should_read(bio))
1531 return(SSL_ERROR_WANT_READ);
1532 else if (BIO_should_write(bio))
1533 /* This one doesn't make too much sense ... We never try
1534 * to write to the rbio, and an application program where
1535 * rbio and wbio are separate couldn't even know what it
1537 * However if we ever set s->rwstate incorrectly
1538 * (so that we have SSL_want_read(s) instead of
1539 * SSL_want_write(s)) and rbio and wbio *are* the same,
1540 * this test works around that bug; so it might be safer
1542 return(SSL_ERROR_WANT_WRITE);
1543 else if (BIO_should_io_special(bio))
1545 reason=BIO_get_retry_reason(bio);
1546 if (reason == BIO_RR_CONNECT)
1547 return(SSL_ERROR_WANT_CONNECT);
1549 return(SSL_ERROR_SYSCALL); /* unknown */
1553 if ((i < 0) && SSL_want_write(s))
1555 bio=SSL_get_wbio(s);
1556 if (BIO_should_write(bio))
1557 return(SSL_ERROR_WANT_WRITE);
1558 else if (BIO_should_read(bio))
1559 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1560 return(SSL_ERROR_WANT_READ);
1561 else if (BIO_should_io_special(bio))
1563 reason=BIO_get_retry_reason(bio);
1564 if (reason == BIO_RR_CONNECT)
1565 return(SSL_ERROR_WANT_CONNECT);
1567 return(SSL_ERROR_SYSCALL);
1570 if ((i < 0) && SSL_want_x509_lookup(s))
1572 return(SSL_ERROR_WANT_X509_LOOKUP);
1577 if (s->version == SSL2_VERSION)
1579 /* assume it is the socket being closed */
1580 return(SSL_ERROR_ZERO_RETURN);
1584 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1585 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1586 return(SSL_ERROR_ZERO_RETURN);
1589 return(SSL_ERROR_SYSCALL);
1592 int SSL_do_handshake(SSL *s)
1596 if (s->handshake_func == NULL)
1598 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1602 s->method->ssl_renegotiate_check(s);
1604 if (SSL_in_init(s) || SSL_in_before(s))
1606 ret=s->handshake_func(s);
1611 /* For the next 2 functions, SSL_clear() sets shutdown and so
1612 * one of these calls will reset it */
1613 void SSL_set_accept_state(SSL *s)
1617 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1618 s->handshake_func=s->method->ssl_accept;
1619 /* clear the current cipher */
1620 ssl_clear_cipher_ctx(s);
1623 void SSL_set_connect_state(SSL *s)
1627 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1628 s->handshake_func=s->method->ssl_connect;
1629 /* clear the current cipher */
1630 ssl_clear_cipher_ctx(s);
1633 int ssl_undefined_function(SSL *s)
1635 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1639 SSL_METHOD *ssl_bad_method(int ver)
1641 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1645 const char *SSL_get_version(SSL *s)
1647 if (s->version == TLS1_VERSION)
1649 else if (s->version == SSL3_VERSION)
1651 else if (s->version == SSL2_VERSION)
1657 SSL *SSL_dup(SSL *s)
1659 STACK_OF(X509_NAME) *sk;
1664 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
1667 if (s->session != NULL)
1669 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1670 SSL_copy_session_id(ret,s);
1674 /* No session has been established yet, so we have to expect
1675 * that s->cert or ret->cert will be changed later --
1676 * they should not both point to the same object,
1677 * and thus we can't use SSL_copy_session_id. */
1679 ret->method = s->method;
1680 ret->method->ssl_new(ret);
1682 if (s->cert != NULL)
1684 ret->cert = ssl_cert_dup(s->cert);
1685 if (ret->cert == NULL)
1689 SSL_set_session_id_context(ret,
1690 s->sid_ctx, s->sid_ctx_length);
1693 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1694 SSL_set_verify(ret,SSL_get_verify_mode(s),
1695 SSL_get_verify_callback(s));
1696 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
1698 SSL_set_info_callback(ret,SSL_get_info_callback(s));
1700 ret->debug=s->debug;
1701 ret->options=s->options;
1703 /* copy app data, a little dangerous perhaps */
1704 if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data))
1707 /* setup rbio, and wbio */
1708 if (s->rbio != NULL)
1710 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1713 if (s->wbio != NULL)
1715 if (s->wbio != s->rbio)
1717 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1721 ret->wbio=ret->rbio;
1724 /* dup the cipher_list and cipher_list_by_id stacks */
1725 if (s->cipher_list != NULL)
1727 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
1730 if (s->cipher_list_by_id != NULL)
1731 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
1735 /* Dup the client_CA list */
1736 if (s->client_CA != NULL)
1738 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
1740 for (i=0; i<sk_X509_NAME_num(sk); i++)
1742 xn=sk_X509_NAME_value(sk,i);
1743 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
1751 ret->shutdown=s->shutdown;
1752 ret->state=s->state;
1753 ret->handshake_func=s->handshake_func;
1754 ret->server=s->server;
1759 if (ret != NULL) SSL_free(ret);
1765 void ssl_clear_cipher_ctx(SSL *s)
1767 if (s->enc_read_ctx != NULL)
1769 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
1770 Free(s->enc_read_ctx);
1771 s->enc_read_ctx=NULL;
1773 if (s->enc_write_ctx != NULL)
1775 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
1776 Free(s->enc_write_ctx);
1777 s->enc_write_ctx=NULL;
1779 if (s->expand != NULL)
1781 COMP_CTX_free(s->expand);
1784 if (s->compress != NULL)
1786 COMP_CTX_free(s->compress);
1791 /* Fix this function so that it takes an optional type parameter */
1792 X509 *SSL_get_certificate(SSL *s)
1794 if (s->cert != NULL)
1795 return(s->cert->key->x509);
1800 /* Fix this function so that it takes an optional type parameter */
1801 EVP_PKEY *SSL_get_privatekey(SSL *s)
1803 if (s->cert != NULL)
1804 return(s->cert->key->privatekey);
1809 SSL_CIPHER *SSL_get_current_cipher(SSL *s)
1811 if ((s->session != NULL) && (s->session->cipher != NULL))
1812 return(s->session->cipher);
1816 int ssl_init_wbio_buffer(SSL *s,int push)
1820 if (s->bbio == NULL)
1822 bbio=BIO_new(BIO_f_buffer());
1823 if (bbio == NULL) return(0);
1829 if (s->bbio == s->wbio)
1830 s->wbio=BIO_pop(s->wbio);
1832 (void)BIO_reset(bbio);
1833 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
1834 if (!BIO_set_read_buffer_size(bbio,1))
1836 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
1841 if (s->wbio != bbio)
1842 s->wbio=BIO_push(bbio,s->wbio);
1846 if (s->wbio == bbio)
1847 s->wbio=BIO_pop(bbio);
1852 void ssl_free_wbio_buffer(SSL *s)
1856 if (s->bbio == NULL) return;
1858 if (s->bbio == s->wbio)
1860 /* remove buffering */
1861 under=BIO_pop(s->wbio);
1871 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
1873 ctx->quiet_shutdown=mode;
1876 int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx)
1878 return(ctx->quiet_shutdown);
1881 void SSL_set_quiet_shutdown(SSL *s,int mode)
1883 s->quiet_shutdown=mode;
1886 int SSL_get_quiet_shutdown(SSL *s)
1888 return(s->quiet_shutdown);
1891 void SSL_set_shutdown(SSL *s,int mode)
1896 int SSL_get_shutdown(SSL *s)
1898 return(s->shutdown);
1901 int SSL_version(SSL *s)
1906 SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
1912 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
1914 return(X509_STORE_set_default_paths(ctx->cert_store));
1917 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
1920 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
1924 void SSL_set_info_callback(SSL *ssl,void (*cb)())
1926 ssl->info_callback=cb;
1929 void (*SSL_get_info_callback(SSL *ssl))(void)
1931 return((void (*)())ssl->info_callback);
1934 int SSL_state(SSL *ssl)
1939 void SSL_set_verify_result(SSL *ssl,long arg)
1941 ssl->verify_result=arg;
1944 long SSL_get_verify_result(SSL *ssl)
1946 return(ssl->verify_result);
1949 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1950 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1953 return(CRYPTO_get_ex_new_index(ssl_meth_num-1,
1954 &ssl_meth,argl,argp,new_func,dup_func,free_func));
1957 int SSL_set_ex_data(SSL *s,int idx,void *arg)
1959 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1962 void *SSL_get_ex_data(SSL *s,int idx)
1964 return(CRYPTO_get_ex_data(&s->ex_data,idx));
1967 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1968 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1971 return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1,
1972 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func));
1975 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
1977 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1980 void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx)
1982 return(CRYPTO_get_ex_data(&s->ex_data,idx));
1990 X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx)
1992 return(ctx->cert_store);
1995 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
1997 if (ctx->cert_store != NULL)
1998 X509_STORE_free(ctx->cert_store);
1999 ctx->cert_store=store;
2002 int SSL_want(SSL *s)
2008 * \brief Set the callback for generating temporary RSA keys.
2009 * \param ctx the SSL context.
2010 * \param cb the callback
2014 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2018 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2021 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2025 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2031 * \brief The RSA temporary key callback function.
2032 * \param ssl the SSL session.
2033 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2034 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2035 * of the required key in bits.
2036 * \return the temporary RSA key.
2037 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2040 RSA *cb(SSL *ssl,int is_export,int keylength)
2045 * \brief Set the callback for generating temporary DH keys.
2046 * \param ctx the SSL context.
2047 * \param dh the callback
2051 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2054 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2057 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2060 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2064 #if defined(_WINDLL) && defined(WIN16)
2065 #include "../crypto/bio/bss_file.c"
2068 IMPLEMENT_STACK_OF(SSL_CIPHER)
2069 IMPLEMENT_STACK_OF(SSL_COMP)