Fix code structure (if ... else if ... where both parts
[openssl.git] / ssl / ssl_lib.c
1 /*! \file ssl/ssl_lib.c
2  *  \brief Version independent SSL functions.
3  */
4 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5  * All rights reserved.
6  *
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.
10  * 
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).
17  * 
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.
24  * 
25  * Redistribution and use in source and binary forms, with or without
26  * modification, are permitted provided that the following conditions
27  * are met:
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)"
42  * 
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
53  * SUCH DAMAGE.
54  * 
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.]
59  */
60
61 #include <stdio.h>
62 #include <openssl/objects.h>
63 #include <openssl/lhash.h>
64 #include <openssl/x509v3.h>
65 #include "ssl_locl.h"
66
67 const char *SSL_version_str=OPENSSL_VERSION_TEXT;
68
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;
73
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
82         };
83
84 int SSL_clear(SSL *s)
85         {
86         int state;
87
88         if (s->method == NULL)
89                 {
90                 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
91                 return(0);
92                 }
93
94         s->error=0;
95         s->hit=0;
96         s->shutdown=0;
97
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);
103 #else
104         if (s->new_session)
105                 {
106                 SSLerr(SSL_F_SSL_CLEAR,SSL_R_INTERNAL_ERROR);
107                 return 0;
108                 }
109 #endif
110
111         state=s->state; /* Keep to check if we throw away the session-id */
112         s->type=0;
113
114         s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
115
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;
121
122         if (s->init_buf != NULL)
123                 {
124                 BUF_MEM_free(s->init_buf);
125                 s->init_buf=NULL;
126                 }
127
128         ssl_clear_cipher_ctx(s);
129
130         if (ssl_clear_bad_session(s))
131                 {
132                 SSL_SESSION_free(s->session);
133                 s->session=NULL;
134                 }
135
136         s->first_packet=0;
137
138 #if 1
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))
142                 {
143                 s->method->ssl_free(s);
144                 s->method=s->ctx->method;
145                 if (!s->method->ssl_new(s))
146                         return(0);
147                 }
148         else
149 #endif
150                 s->method->ssl_clear(s);
151         return(1);
152         }
153
154 /** Used to change an SSL_CTXs default SSL method type */
155 int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth)
156         {
157         STACK_OF(SSL_CIPHER) *sk;
158
159         ctx->method=meth;
160
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))
164                 {
165                 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
166                 return(0);
167                 }
168         return(1);
169         }
170
171 SSL *SSL_new(SSL_CTX *ctx)
172         {
173         SSL *s;
174
175         if (ctx == NULL)
176                 {
177                 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
178                 return(NULL);
179                 }
180         if (ctx->method == NULL)
181                 {
182                 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
183                 return(NULL);
184                 }
185
186         s=(SSL *)OPENSSL_malloc(sizeof(SSL));
187         if (s == NULL) goto err;
188         memset(s,0,sizeof(SSL));
189
190         if (ctx->cert != NULL)
191                 {
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. */
201
202                 s->cert = ssl_cert_dup(ctx->cert);
203                 if (s->cert == NULL)
204                         goto err;
205                 }
206         else
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);
216         s->ctx=ctx;
217
218         s->verify_result=X509_V_OK;
219
220         s->method=ctx->method;
221
222         if (!s->method->ssl_new(s))
223                 goto err;
224
225         s->quiet_shutdown=ctx->quiet_shutdown;
226         s->references=1;
227         s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
228         s->options=ctx->options;
229         s->mode=ctx->mode;
230         SSL_clear(s);
231
232         CRYPTO_new_ex_data(ssl_meth,s,&s->ex_data);
233
234         return(s);
235 err:
236         if (s != NULL)
237                 {
238                 if (s->cert != NULL)
239                         ssl_cert_free(s->cert);
240                 if (s->ctx != NULL)
241                         SSL_CTX_free(s->ctx); /* decrement reference count */
242                 OPENSSL_free(s);
243                 }
244         SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
245         return(NULL);
246         }
247
248 int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
249                                    unsigned int sid_ctx_len)
250     {
251     if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
252         {
253         SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
254         return 0;
255         }
256     ctx->sid_ctx_length=sid_ctx_len;
257     memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
258
259     return 1;
260     }
261
262 int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
263                                unsigned int sid_ctx_len)
264     {
265     if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
266         {
267         SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
268         return 0;
269         }
270     ssl->sid_ctx_length=sid_ctx_len;
271     memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
272
273     return 1;
274     }
275
276 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
277 {
278         if(X509_PURPOSE_get_by_id(purpose) == -1) {
279                 SSLerr(SSL_F_SSL_CTX_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
280                 return 0;
281         }
282         s->purpose = purpose;
283         return 1;
284 }
285
286 int SSL_set_purpose(SSL *s, int purpose)
287 {
288         if(X509_PURPOSE_get_by_id(purpose) == -1) {
289                 SSLerr(SSL_F_SSL_SET_PURPOSE, SSL_R_INVALID_PURPOSE);
290                 return 0;
291         }
292         s->purpose = purpose;
293         return 1;
294 }
295         
296 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
297 {
298         if(X509_TRUST_get_by_id(trust) == -1) {
299                 SSLerr(SSL_F_SSL_CTX_SET_TRUST, SSL_R_INVALID_TRUST);
300                 return 0;
301         }
302         s->trust = trust;
303         return 1;
304 }
305
306 int SSL_set_trust(SSL *s, int trust)
307 {
308         if(X509_TRUST_get_by_id(trust) == -1) {
309                 SSLerr(SSL_F_SSL_SET_TRUST, SSL_R_INVALID_TRUST);
310                 return 0;
311         }
312         s->trust = trust;
313         return 1;
314 }
315
316 void SSL_free(SSL *s)
317         {
318         int i;
319
320         if(s == NULL)
321             return;
322
323         i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
324 #ifdef REF_PRINT
325         REF_PRINT("SSL",s);
326 #endif
327         if (i > 0) return;
328 #ifdef REF_CHECK
329         if (i < 0)
330                 {
331                 fprintf(stderr,"SSL_free, bad reference count\n");
332                 abort(); /* ok */
333                 }
334 #endif
335
336         CRYPTO_free_ex_data(ssl_meth,(char *)s,&s->ex_data);
337
338         if (s->bbio != NULL)
339                 {
340                 /* If the buffering BIO is in place, pop it off */
341                 if (s->bbio == s->wbio)
342                         {
343                         s->wbio=BIO_pop(s->wbio);
344                         }
345                 BIO_free(s->bbio);
346                 s->bbio=NULL;
347                 }
348         if (s->rbio != NULL)
349                 BIO_free_all(s->rbio);
350         if ((s->wbio != NULL) && (s->wbio != s->rbio))
351                 BIO_free_all(s->wbio);
352
353         if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
354
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);
358
359         /* Make the next call work :-) */
360         if (s->session != NULL)
361                 {
362                 ssl_clear_bad_session(s);
363                 SSL_SESSION_free(s->session);
364                 }
365
366         ssl_clear_cipher_ctx(s);
367
368         if (s->cert != NULL) ssl_cert_free(s->cert);
369         /* Free up if allocated */
370
371         if (s->ctx) SSL_CTX_free(s->ctx);
372
373         if (s->client_CA != NULL)
374                 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
375
376         if (s->method != NULL) s->method->ssl_free(s);
377
378         OPENSSL_free(s);
379         }
380
381 void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
382         {
383         /* If the output buffering BIO is still in place, remove it
384          */
385         if (s->bbio != NULL)
386                 {
387                 if (s->wbio == s->bbio)
388                         {
389                         s->wbio=s->wbio->next_bio;
390                         s->bbio->next_bio=NULL;
391                         }
392                 }
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);
397         s->rbio=rbio;
398         s->wbio=wbio;
399         }
400
401 BIO *SSL_get_rbio(SSL *s)
402         { return(s->rbio); }
403
404 BIO *SSL_get_wbio(SSL *s)
405         { return(s->wbio); }
406
407 int SSL_get_fd(SSL *s)
408         {
409         int ret= -1;
410         BIO *b,*r;
411
412         b=SSL_get_rbio(s);
413         r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
414         if (r != NULL)
415                 BIO_get_fd(r,&ret);
416         return(ret);
417         }
418
419 #ifndef NO_SOCK
420 int SSL_set_fd(SSL *s,int fd)
421         {
422         int ret=0;
423         BIO *bio=NULL;
424
425         bio=BIO_new(BIO_s_socket());
426
427         if (bio == NULL)
428                 {
429                 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
430                 goto err;
431                 }
432         BIO_set_fd(bio,fd,BIO_NOCLOSE);
433         SSL_set_bio(s,bio,bio);
434         ret=1;
435 err:
436         return(ret);
437         }
438
439 int SSL_set_wfd(SSL *s,int fd)
440         {
441         int ret=0;
442         BIO *bio=NULL;
443
444         if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
445                 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
446                 {
447                 bio=BIO_new(BIO_s_socket());
448
449                 if (bio == NULL)
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);
453                 }
454         else
455                 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
456         ret=1;
457 err:
458         return(ret);
459         }
460
461 int SSL_set_rfd(SSL *s,int fd)
462         {
463         int ret=0;
464         BIO *bio=NULL;
465
466         if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
467                 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
468                 {
469                 bio=BIO_new(BIO_s_socket());
470
471                 if (bio == NULL)
472                         {
473                         SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
474                         goto err;
475                         }
476                 BIO_set_fd(bio,fd,BIO_NOCLOSE);
477                 SSL_set_bio(s,bio,SSL_get_wbio(s));
478                 }
479         else
480                 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
481         ret=1;
482 err:
483         return(ret);
484         }
485 #endif
486
487
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)
490         {
491         size_t ret = 0;
492         
493         if (s->s3 != NULL)
494                 {
495                 ret = s->s3->tmp.finish_md_len;
496                 if (count > ret)
497                         count = ret;
498                 memcpy(buf, s->s3->tmp.finish_md, count);
499                 }
500         return ret;
501         }
502
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)
505         {
506         size_t ret = 0;
507         
508         if (s->s3 != NULL)
509                 {
510                 ret = s->s3->tmp.peer_finish_md_len;
511                 if (count > ret)
512                         count = ret;
513                 memcpy(buf, s->s3->tmp.peer_finish_md, count);
514                 }
515         return ret;
516         }
517
518
519 int SSL_get_verify_mode(SSL *s)
520         {
521         return(s->verify_mode);
522         }
523
524 int SSL_get_verify_depth(SSL *s)
525         {
526         return(s->verify_depth);
527         }
528
529 int (*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *)
530         {
531         return(s->verify_callback);
532         }
533
534 int SSL_CTX_get_verify_mode(SSL_CTX *ctx)
535         {
536         return(ctx->verify_mode);
537         }
538
539 int SSL_CTX_get_verify_depth(SSL_CTX *ctx)
540         {
541         return(ctx->verify_depth);
542         }
543
544 int (*SSL_CTX_get_verify_callback(SSL_CTX *ctx))(int,X509_STORE_CTX *)
545         {
546         return(ctx->default_verify_callback);
547         }
548
549 void SSL_set_verify(SSL *s,int mode,
550                     int (*callback)(int ok,X509_STORE_CTX *ctx))
551         {
552         s->verify_mode=mode;
553         if (callback != NULL)
554                 s->verify_callback=callback;
555         }
556
557 void SSL_set_verify_depth(SSL *s,int depth)
558         {
559         s->verify_depth=depth;
560         }
561
562 void SSL_set_read_ahead(SSL *s,int yes)
563         {
564         s->read_ahead=yes;
565         }
566
567 int SSL_get_read_ahead(SSL *s)
568         {
569         return(s->read_ahead);
570         }
571
572 int SSL_pending(SSL *s)
573         {
574         return(s->method->ssl_pending(s));
575         }
576
577 X509 *SSL_get_peer_certificate(SSL *s)
578         {
579         X509 *r;
580         
581         if ((s == NULL) || (s->session == NULL))
582                 r=NULL;
583         else
584                 r=s->session->peer;
585
586         if (r == NULL) return(r);
587
588         CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
589
590         return(r);
591         }
592
593 STACK_OF(X509) *SSL_get_peer_cert_chain(SSL *s)
594         {
595         STACK_OF(X509) *r;
596         
597         if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
598                 r=NULL;
599         else
600                 r=s->session->sess_cert->cert_chain;
601
602         /* If we are a client, cert_chain includes the peer's own
603          * certificate; if we are a server, it does not. */
604         
605         return(r);
606         }
607
608 /* Now in theory, since the calling process own 't' it should be safe to
609  * modify.  We need to be able to read f without being hassled */
610 void SSL_copy_session_id(SSL *t,SSL *f)
611         {
612         CERT *tmp;
613
614         /* Do we need to to SSL locking? */
615         SSL_set_session(t,SSL_get_session(f));
616
617         /* what if we are setup as SSLv2 but want to talk SSLv3 or
618          * vice-versa */
619         if (t->method != f->method)
620                 {
621                 t->method->ssl_free(t); /* cleanup current */
622                 t->method=f->method;    /* change method */
623                 t->method->ssl_new(t);  /* setup new */
624                 }
625
626         tmp=t->cert;
627         if (f->cert != NULL)
628                 {
629                 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
630                 t->cert=f->cert;
631                 }
632         else
633                 t->cert=NULL;
634         if (tmp != NULL) ssl_cert_free(tmp);
635         SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
636         }
637
638 /* Fix this so it checks all the valid key/cert options */
639 int SSL_CTX_check_private_key(SSL_CTX *ctx)
640         {
641         if (    (ctx == NULL) ||
642                 (ctx->cert == NULL) ||
643                 (ctx->cert->key->x509 == NULL))
644                 {
645                 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
646                 return(0);
647                 }
648         if      (ctx->cert->key->privatekey == NULL)
649                 {
650                 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
651                 return(0);
652                 }
653         return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
654         }
655
656 /* Fix this function so that it takes an optional type parameter */
657 int SSL_check_private_key(SSL *ssl)
658         {
659         if (ssl == NULL)
660                 {
661                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
662                 return(0);
663                 }
664         if (ssl->cert == NULL)
665                 {
666                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
667                 return 0;
668                 }
669         if (ssl->cert->key->x509 == NULL)
670                 {
671                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
672                 return(0);
673                 }
674         if (ssl->cert->key->privatekey == NULL)
675                 {
676                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
677                 return(0);
678                 }
679         return(X509_check_private_key(ssl->cert->key->x509,
680                 ssl->cert->key->privatekey));
681         }
682
683 int SSL_accept(SSL *s)
684         {
685         if (s->handshake_func == 0)
686                 /* Not properly initialized yet */
687                 SSL_set_accept_state(s);
688
689         return(s->method->ssl_accept(s));
690         }
691
692 int SSL_connect(SSL *s)
693         {
694         if (s->handshake_func == 0)
695                 /* Not properly initialized yet */
696                 SSL_set_connect_state(s);
697
698         return(s->method->ssl_connect(s));
699         }
700
701 long SSL_get_default_timeout(SSL *s)
702         {
703         return(s->method->get_timeout());
704         }
705
706 int SSL_read(SSL *s,char *buf,int num)
707         {
708         if (s->handshake_func == 0)
709                 {
710                 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
711                 return -1;
712                 }
713
714         if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
715                 {
716                 s->rwstate=SSL_NOTHING;
717                 return(0);
718                 }
719         return(s->method->ssl_read(s,buf,num));
720         }
721
722 int SSL_peek(SSL *s,char *buf,int num)
723         {
724         if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
725                 {
726                 return(0);
727                 }
728         return(s->method->ssl_peek(s,buf,num));
729         }
730
731 int SSL_write(SSL *s,const char *buf,int num)
732         {
733         if (s->handshake_func == 0)
734                 {
735                 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
736                 return -1;
737                 }
738
739         if (s->shutdown & SSL_SENT_SHUTDOWN)
740                 {
741                 s->rwstate=SSL_NOTHING;
742                 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
743                 return(-1);
744                 }
745         return(s->method->ssl_write(s,buf,num));
746         }
747
748 int SSL_shutdown(SSL *s)
749         {
750         /* Note that this function behaves differently from what one might
751          * expect.  Return values are 0 for no success (yet),
752          * 1 for success; but calling it once is usually not enough,
753          * even if blocking I/O is used (see ssl3_shutdown).
754          */
755
756         if (s->handshake_func == 0)
757                 {
758                 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
759                 return -1;
760                 }
761
762         if ((s != NULL) && !SSL_in_init(s))
763                 return(s->method->ssl_shutdown(s));
764         else
765                 return(1);
766         }
767
768 int SSL_renegotiate(SSL *s)
769         {
770         s->new_session=1;
771         return(s->method->ssl_renegotiate(s));
772         }
773
774 long SSL_ctrl(SSL *s,int cmd,long larg,char *parg)
775         {
776         long l;
777
778         switch (cmd)
779                 {
780         case SSL_CTRL_GET_READ_AHEAD:
781                 return(s->read_ahead);
782         case SSL_CTRL_SET_READ_AHEAD:
783                 l=s->read_ahead;
784                 s->read_ahead=larg;
785                 return(l);
786         case SSL_CTRL_OPTIONS:
787                 return(s->options|=larg);
788         case SSL_CTRL_MODE:
789                 return(s->mode|=larg);
790         default:
791                 return(s->method->ssl_ctrl(s,cmd,larg,parg));
792                 }
793         }
794
795 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)())
796         {
797         switch(cmd)
798                 {
799         default:
800                 return(s->method->ssl_callback_ctrl(s,cmd,fp));
801                 }
802         }
803
804 struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
805         {
806         return ctx->sessions;
807         }
808
809 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg)
810         {
811         long l;
812
813         switch (cmd)
814                 {
815         case SSL_CTRL_GET_READ_AHEAD:
816                 return(ctx->read_ahead);
817         case SSL_CTRL_SET_READ_AHEAD:
818                 l=ctx->read_ahead;
819                 ctx->read_ahead=larg;
820                 return(l);
821
822         case SSL_CTRL_SET_SESS_CACHE_SIZE:
823                 l=ctx->session_cache_size;
824                 ctx->session_cache_size=larg;
825                 return(l);
826         case SSL_CTRL_GET_SESS_CACHE_SIZE:
827                 return(ctx->session_cache_size);
828         case SSL_CTRL_SET_SESS_CACHE_MODE:
829                 l=ctx->session_cache_mode;
830                 ctx->session_cache_mode=larg;
831                 return(l);
832         case SSL_CTRL_GET_SESS_CACHE_MODE:
833                 return(ctx->session_cache_mode);
834
835         case SSL_CTRL_SESS_NUMBER:
836                 return(ctx->sessions->num_items);
837         case SSL_CTRL_SESS_CONNECT:
838                 return(ctx->stats.sess_connect);
839         case SSL_CTRL_SESS_CONNECT_GOOD:
840                 return(ctx->stats.sess_connect_good);
841         case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
842                 return(ctx->stats.sess_connect_renegotiate);
843         case SSL_CTRL_SESS_ACCEPT:
844                 return(ctx->stats.sess_accept);
845         case SSL_CTRL_SESS_ACCEPT_GOOD:
846                 return(ctx->stats.sess_accept_good);
847         case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
848                 return(ctx->stats.sess_accept_renegotiate);
849         case SSL_CTRL_SESS_HIT:
850                 return(ctx->stats.sess_hit);
851         case SSL_CTRL_SESS_CB_HIT:
852                 return(ctx->stats.sess_cb_hit);
853         case SSL_CTRL_SESS_MISSES:
854                 return(ctx->stats.sess_miss);
855         case SSL_CTRL_SESS_TIMEOUTS:
856                 return(ctx->stats.sess_timeout);
857         case SSL_CTRL_SESS_CACHE_FULL:
858                 return(ctx->stats.sess_cache_full);
859         case SSL_CTRL_OPTIONS:
860                 return(ctx->options|=larg);
861         case SSL_CTRL_MODE:
862                 return(ctx->mode|=larg);
863         default:
864                 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
865                 }
866         }
867
868 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)())
869         {
870         switch(cmd)
871                 {
872         default:
873                 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
874                 }
875         }
876
877 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
878         {
879         long l;
880
881         l=a->id-b->id;
882         if (l == 0L)
883                 return(0);
884         else
885                 return((l > 0)?1:-1);
886         }
887
888 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
889                         const SSL_CIPHER * const *bp)
890         {
891         long l;
892
893         l=(*ap)->id-(*bp)->id;
894         if (l == 0L)
895                 return(0);
896         else
897                 return((l > 0)?1:-1);
898         }
899
900 /** return a STACK of the ciphers available for the SSL and in order of
901  * preference */
902 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s)
903         {
904         if ((s != NULL) && (s->cipher_list != NULL))
905                 {
906                 return(s->cipher_list);
907                 }
908         else if ((s->ctx != NULL) &&
909                 (s->ctx->cipher_list != NULL))
910                 {
911                 return(s->ctx->cipher_list);
912                 }
913         return(NULL);
914         }
915
916 /** return a STACK of the ciphers available for the SSL and in order of
917  * algorithm id */
918 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
919         {
920         if ((s != NULL) && (s->cipher_list_by_id != NULL))
921                 {
922                 return(s->cipher_list_by_id);
923                 }
924         else if ((s != NULL) && (s->ctx != NULL) &&
925                 (s->ctx->cipher_list_by_id != NULL))
926                 {
927                 return(s->ctx->cipher_list_by_id);
928                 }
929         return(NULL);
930         }
931
932 /** The old interface to get the same thing as SSL_get_ciphers() */
933 const char *SSL_get_cipher_list(SSL *s,int n)
934         {
935         SSL_CIPHER *c;
936         STACK_OF(SSL_CIPHER) *sk;
937
938         if (s == NULL) return(NULL);
939         sk=SSL_get_ciphers(s);
940         if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
941                 return(NULL);
942         c=sk_SSL_CIPHER_value(sk,n);
943         if (c == NULL) return(NULL);
944         return(c->name);
945         }
946
947 /** specify the ciphers to be used by default by the SSL_CTX */
948 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
949         {
950         STACK_OF(SSL_CIPHER) *sk;
951         
952         sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
953                 &ctx->cipher_list_by_id,str);
954 /* XXXX */
955         return((sk == NULL)?0:1);
956         }
957
958 /** specify the ciphers to be used by the SSL */
959 int SSL_set_cipher_list(SSL *s,const char *str)
960         {
961         STACK_OF(SSL_CIPHER) *sk;
962         
963         sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
964                 &s->cipher_list_by_id,str);
965 /* XXXX */
966         return((sk == NULL)?0:1);
967         }
968
969 /* works well for SSLv2, not so good for SSLv3 */
970 char *SSL_get_shared_ciphers(SSL *s,char *buf,int len)
971         {
972         char *p;
973         const char *cp;
974         STACK_OF(SSL_CIPHER) *sk;
975         SSL_CIPHER *c;
976         int i;
977
978         if ((s->session == NULL) || (s->session->ciphers == NULL) ||
979                 (len < 2))
980                 return(NULL);
981
982         p=buf;
983         sk=s->session->ciphers;
984         for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
985                 {
986                 /* Decrement for either the ':' or a '\0' */
987                 len--;
988                 c=sk_SSL_CIPHER_value(sk,i);
989                 for (cp=c->name; *cp; )
990                         {
991                         if (len-- == 0)
992                                 {
993                                 *p='\0';
994                                 return(buf);
995                                 }
996                         else
997                                 *(p++)= *(cp++);
998                         }
999                 *(p++)=':';
1000                 }
1001         p[-1]='\0';
1002         return(buf);
1003         }
1004
1005 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
1006         {
1007         int i,j=0;
1008         SSL_CIPHER *c;
1009         unsigned char *q;
1010
1011         if (sk == NULL) return(0);
1012         q=p;
1013
1014         for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1015                 {
1016                 c=sk_SSL_CIPHER_value(sk,i);
1017                 j=ssl_put_cipher_by_char(s,c,p);
1018                 p+=j;
1019                 }
1020         return(p-q);
1021         }
1022
1023 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1024                                                STACK_OF(SSL_CIPHER) **skp)
1025         {
1026         SSL_CIPHER *c;
1027         STACK_OF(SSL_CIPHER) *sk;
1028         int i,n;
1029
1030         n=ssl_put_cipher_by_char(s,NULL,NULL);
1031         if ((num%n) != 0)
1032                 {
1033                 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1034                 return(NULL);
1035                 }
1036         if ((skp == NULL) || (*skp == NULL))
1037                 sk=sk_SSL_CIPHER_new(NULL); /* change perhaps later */
1038         else
1039                 {
1040                 sk= *skp;
1041                 sk_SSL_CIPHER_zero(sk);
1042                 }
1043
1044         for (i=0; i<num; i+=n)
1045                 {
1046                 c=ssl_get_cipher_by_char(s,p);
1047                 p+=n;
1048                 if (c != NULL)
1049                         {
1050                         if (!sk_SSL_CIPHER_push(sk,c))
1051                                 {
1052                                 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1053                                 goto err;
1054                                 }
1055                         }
1056                 }
1057
1058         if (skp != NULL)
1059                 *skp=sk;
1060         return(sk);
1061 err:
1062         if ((skp == NULL) || (*skp == NULL))
1063                 sk_SSL_CIPHER_free(sk);
1064         return(NULL);
1065         }
1066
1067 unsigned long SSL_SESSION_hash(SSL_SESSION *a)
1068         {
1069         unsigned long l;
1070
1071         l=(unsigned long)
1072                 ((unsigned int) a->session_id[0]     )|
1073                 ((unsigned int) a->session_id[1]<< 8L)|
1074                 ((unsigned long)a->session_id[2]<<16L)|
1075                 ((unsigned long)a->session_id[3]<<24L);
1076         return(l);
1077         }
1078
1079 int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
1080         {
1081         if (a->ssl_version != b->ssl_version)
1082                 return(1);
1083         if (a->session_id_length != b->session_id_length)
1084                 return(1);
1085         return(memcmp(a->session_id,b->session_id,a->session_id_length));
1086         }
1087
1088 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1089         {
1090         SSL_CTX *ret=NULL;
1091         
1092         if (meth == NULL)
1093                 {
1094                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1095                 return(NULL);
1096                 }
1097
1098         if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1099                 {
1100                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1101                 goto err;
1102                 }
1103         ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1104         if (ret == NULL)
1105                 goto err;
1106
1107         memset(ret,0,sizeof(SSL_CTX));
1108
1109         ret->method=meth;
1110
1111         ret->cert_store=NULL;
1112         ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1113         ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1114         ret->session_cache_head=NULL;
1115         ret->session_cache_tail=NULL;
1116
1117         /* We take the system default */
1118         ret->session_timeout=meth->get_timeout();
1119
1120         ret->new_session_cb=NULL;
1121         ret->remove_session_cb=NULL;
1122         ret->get_session_cb=NULL;
1123
1124         memset((char *)&ret->stats,0,sizeof(ret->stats));
1125
1126         ret->references=1;
1127         ret->quiet_shutdown=0;
1128
1129 /*      ret->cipher=NULL;*/
1130 /*      ret->s2->challenge=NULL;
1131         ret->master_key=NULL;
1132         ret->key_arg=NULL;
1133         ret->s2->conn_id=NULL; */
1134
1135         ret->info_callback=NULL;
1136
1137         ret->app_verify_callback=NULL;
1138         ret->app_verify_arg=NULL;
1139
1140         ret->read_ahead=0;
1141         ret->verify_mode=SSL_VERIFY_NONE;
1142         ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1143         ret->default_verify_callback=NULL;
1144         if ((ret->cert=ssl_cert_new()) == NULL)
1145                 goto err;
1146
1147         ret->default_passwd_callback=NULL;
1148         ret->default_passwd_callback_userdata=NULL;
1149         ret->client_cert_cb=NULL;
1150
1151         ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp);
1152         if (ret->sessions == NULL) goto err;
1153         ret->cert_store=X509_STORE_new();
1154         if (ret->cert_store == NULL) goto err;
1155
1156         ssl_create_cipher_list(ret->method,
1157                 &ret->cipher_list,&ret->cipher_list_by_id,
1158                 SSL_DEFAULT_CIPHER_LIST);
1159         if (ret->cipher_list == NULL
1160             || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1161                 {
1162                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1163                 goto err2;
1164                 }
1165
1166         if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1167                 {
1168                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1169                 goto err2;
1170                 }
1171         if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1172                 {
1173                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1174                 goto err2;
1175                 }
1176         if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1177                 {
1178                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1179                 goto err2;
1180                 }
1181
1182         if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1183                 goto err;
1184
1185         CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data);
1186
1187         ret->extra_certs=NULL;
1188         ret->comp_methods=SSL_COMP_get_compression_methods();
1189
1190         return(ret);
1191 err:
1192         SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1193 err2:
1194         if (ret != NULL) SSL_CTX_free(ret);
1195         return(NULL);
1196         }
1197
1198 static void SSL_COMP_free(SSL_COMP *comp)
1199     { OPENSSL_free(comp); }
1200
1201 void SSL_CTX_free(SSL_CTX *a)
1202         {
1203         int i;
1204
1205         if (a == NULL) return;
1206
1207         i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1208 #ifdef REF_PRINT
1209         REF_PRINT("SSL_CTX",a);
1210 #endif
1211         if (i > 0) return;
1212 #ifdef REF_CHECK
1213         if (i < 0)
1214                 {
1215                 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1216                 abort(); /* ok */
1217                 }
1218 #endif
1219         CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data);
1220
1221         if (a->sessions != NULL)
1222                 {
1223                 SSL_CTX_flush_sessions(a,0);
1224                 lh_free(a->sessions);
1225                 }
1226         if (a->cert_store != NULL)
1227                 X509_STORE_free(a->cert_store);
1228         if (a->cipher_list != NULL)
1229                 sk_SSL_CIPHER_free(a->cipher_list);
1230         if (a->cipher_list_by_id != NULL)
1231                 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1232         if (a->cert != NULL)
1233                 ssl_cert_free(a->cert);
1234         if (a->client_CA != NULL)
1235                 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1236         if (a->extra_certs != NULL)
1237                 sk_X509_pop_free(a->extra_certs,X509_free);
1238         if (a->comp_methods != NULL)
1239                 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1240         OPENSSL_free(a);
1241         }
1242
1243 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1244         {
1245         ctx->default_passwd_callback=cb;
1246         }
1247
1248 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1249         {
1250         ctx->default_passwd_callback_userdata=u;
1251         }
1252
1253 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg)
1254         {
1255         /* now
1256          *     int (*cb)(X509_STORE_CTX *),
1257          * but should be
1258          *     int (*cb)(X509_STORE_CTX *, void *arg)
1259          */
1260         ctx->app_verify_callback=cb;
1261         ctx->app_verify_arg=arg; /* never used */
1262         }
1263
1264 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1265         {
1266         ctx->verify_mode=mode;
1267         ctx->default_verify_callback=cb;
1268         /* This needs cleaning up EAY EAY EAY */
1269         X509_STORE_set_verify_cb_func(ctx->cert_store,cb);
1270         }
1271
1272 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1273         {
1274         ctx->verify_depth=depth;
1275         }
1276
1277 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1278         {
1279         CERT_PKEY *cpk;
1280         int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1281         int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1282         int rsa_tmp_export,dh_tmp_export,kl;
1283         unsigned long mask,emask;
1284
1285         if (c == NULL) return;
1286
1287         kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1288
1289 #ifndef NO_RSA
1290         rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1291         rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1292                 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1293 #else
1294         rsa_tmp=rsa_tmp_export=0;
1295 #endif
1296 #ifndef NO_DH
1297         dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1298         dh_tmp_export=(c->dh_tmp_cb != NULL ||
1299                 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1300 #else
1301         dh_tmp=dh_tmp_export=0;
1302 #endif
1303
1304         cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1305         rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1306         rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1307         cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1308         rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1309         cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1310         dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1311         cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1312         dh_rsa=  (cpk->x509 != NULL && cpk->privatekey != NULL);
1313         dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1314         cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1315 /* FIX THIS EAY EAY EAY */
1316         dh_dsa=  (cpk->x509 != NULL && cpk->privatekey != NULL);
1317         dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1318
1319         mask=0;
1320         emask=0;
1321
1322 #ifdef CIPHER_DEBUG
1323         printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1324                 rsa_tmp,rsa_tmp_export,dh_tmp,
1325                 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1326 #endif
1327
1328         if (rsa_enc || (rsa_tmp && rsa_sign))
1329                 mask|=SSL_kRSA;
1330         if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1331                 emask|=SSL_kRSA;
1332
1333 #if 0
1334         /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1335         if (    (dh_tmp || dh_rsa || dh_dsa) && 
1336                 (rsa_enc || rsa_sign || dsa_sign))
1337                 mask|=SSL_kEDH;
1338         if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1339                 (rsa_enc || rsa_sign || dsa_sign))
1340                 emask|=SSL_kEDH;
1341 #endif
1342
1343         if (dh_tmp_export) 
1344                 emask|=SSL_kEDH;
1345
1346         if (dh_tmp)
1347                 mask|=SSL_kEDH;
1348
1349         if (dh_rsa) mask|=SSL_kDHr;
1350         if (dh_rsa_export) emask|=SSL_kDHr;
1351
1352         if (dh_dsa) mask|=SSL_kDHd;
1353         if (dh_dsa_export) emask|=SSL_kDHd;
1354
1355         if (rsa_enc || rsa_sign)
1356                 {
1357                 mask|=SSL_aRSA;
1358                 emask|=SSL_aRSA;
1359                 }
1360
1361         if (dsa_sign)
1362                 {
1363                 mask|=SSL_aDSS;
1364                 emask|=SSL_aDSS;
1365                 }
1366
1367         mask|=SSL_aNULL;
1368         emask|=SSL_aNULL;
1369
1370         c->mask=mask;
1371         c->export_mask=emask;
1372         c->valid=1;
1373         }
1374
1375 /* THIS NEEDS CLEANING UP */
1376 X509 *ssl_get_server_send_cert(SSL *s)
1377         {
1378         unsigned long alg,mask,kalg;
1379         CERT *c;
1380         int i,is_export;
1381
1382         c=s->cert;
1383         ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1384         alg=s->s3->tmp.new_cipher->algorithms;
1385         is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1386         mask=is_export?c->export_mask:c->mask;
1387         kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1388
1389         if      (kalg & SSL_kDHr)
1390                 i=SSL_PKEY_DH_RSA;
1391         else if (kalg & SSL_kDHd)
1392                 i=SSL_PKEY_DH_DSA;
1393         else if (kalg & SSL_aDSS)
1394                 i=SSL_PKEY_DSA_SIGN;
1395         else if (kalg & SSL_aRSA)
1396                 {
1397                 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1398                         i=SSL_PKEY_RSA_SIGN;
1399                 else
1400                         i=SSL_PKEY_RSA_ENC;
1401                 }
1402         else /* if (kalg & SSL_aNULL) */
1403                 {
1404                 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR);
1405                 return(NULL);
1406                 }
1407         if (c->pkeys[i].x509 == NULL) return(NULL);
1408         return(c->pkeys[i].x509);
1409         }
1410
1411 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1412         {
1413         unsigned long alg;
1414         CERT *c;
1415
1416         alg=cipher->algorithms;
1417         c=s->cert;
1418
1419         if ((alg & SSL_aDSS) &&
1420                 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1421                 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1422         else if (alg & SSL_aRSA)
1423                 {
1424                 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1425                         return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1426                 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1427                         return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1428                 else
1429                         return(NULL);
1430                 }
1431         else /* if (alg & SSL_aNULL) */
1432                 {
1433                 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR);
1434                 return(NULL);
1435                 }
1436         }
1437
1438 void ssl_update_cache(SSL *s,int mode)
1439         {
1440         int i;
1441
1442         /* If the session_id_length is 0, we are not supposed to cache it,
1443          * and it would be rather hard to do anyway :-) */
1444         if (s->session->session_id_length == 0) return;
1445
1446         if ((s->ctx->session_cache_mode & mode)
1447                 && (!s->hit)
1448                 && SSL_CTX_add_session(s->ctx,s->session)
1449                 && (s->ctx->new_session_cb != NULL))
1450                 {
1451                 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1452                 if (!s->ctx->new_session_cb(s,s->session))
1453                         SSL_SESSION_free(s->session);
1454                 }
1455
1456         /* auto flush every 255 connections */
1457         i=s->ctx->session_cache_mode;
1458         if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1459                 ((i & mode) == mode))
1460                 {
1461                 if (  (((mode & SSL_SESS_CACHE_CLIENT)
1462                         ?s->ctx->stats.sess_connect_good
1463                         :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1464                         {
1465                         SSL_CTX_flush_sessions(s->ctx,time(NULL));
1466                         }
1467                 }
1468         }
1469
1470 SSL_METHOD *SSL_get_ssl_method(SSL *s)
1471         {
1472         return(s->method);
1473         }
1474
1475 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1476         {
1477         int conn= -1;
1478         int ret=1;
1479
1480         if (s->method != meth)
1481                 {
1482                 if (s->handshake_func != NULL)
1483                         conn=(s->handshake_func == s->method->ssl_connect);
1484
1485                 if (s->method->version == meth->version)
1486                         s->method=meth;
1487                 else
1488                         {
1489                         s->method->ssl_free(s);
1490                         s->method=meth;
1491                         ret=s->method->ssl_new(s);
1492                         }
1493
1494                 if (conn == 1)
1495                         s->handshake_func=meth->ssl_connect;
1496                 else if (conn == 0)
1497                         s->handshake_func=meth->ssl_accept;
1498                 }
1499         return(ret);
1500         }
1501
1502 int SSL_get_error(SSL *s,int i)
1503         {
1504         int reason;
1505         unsigned long l;
1506         BIO *bio;
1507
1508         if (i > 0) return(SSL_ERROR_NONE);
1509
1510         /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1511          * etc, where we do encode the error */
1512         if ((l=ERR_peek_error()) != 0)
1513                 {
1514                 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1515                         return(SSL_ERROR_SYSCALL);
1516                 else
1517                         return(SSL_ERROR_SSL);
1518                 }
1519
1520         if ((i < 0) && SSL_want_read(s))
1521                 {
1522                 bio=SSL_get_rbio(s);
1523                 if (BIO_should_read(bio))
1524                         return(SSL_ERROR_WANT_READ);
1525                 else if (BIO_should_write(bio))
1526                         /* This one doesn't make too much sense ... We never try
1527                          * to write to the rbio, and an application program where
1528                          * rbio and wbio are separate couldn't even know what it
1529                          * should wait for.
1530                          * However if we ever set s->rwstate incorrectly
1531                          * (so that we have SSL_want_read(s) instead of
1532                          * SSL_want_write(s)) and rbio and wbio *are* the same,
1533                          * this test works around that bug; so it might be safer
1534                          * to keep it. */
1535                         return(SSL_ERROR_WANT_WRITE);
1536                 else if (BIO_should_io_special(bio))
1537                         {
1538                         reason=BIO_get_retry_reason(bio);
1539                         if (reason == BIO_RR_CONNECT)
1540                                 return(SSL_ERROR_WANT_CONNECT);
1541                         else
1542                                 return(SSL_ERROR_SYSCALL); /* unknown */
1543                         }
1544                 }
1545
1546         if ((i < 0) && SSL_want_write(s))
1547                 {
1548                 bio=SSL_get_wbio(s);
1549                 if (BIO_should_write(bio))
1550                         return(SSL_ERROR_WANT_WRITE);
1551                 else if (BIO_should_read(bio))
1552                         /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1553                         return(SSL_ERROR_WANT_READ);
1554                 else if (BIO_should_io_special(bio))
1555                         {
1556                         reason=BIO_get_retry_reason(bio);
1557                         if (reason == BIO_RR_CONNECT)
1558                                 return(SSL_ERROR_WANT_CONNECT);
1559                         else
1560                                 return(SSL_ERROR_SYSCALL);
1561                         }
1562                 }
1563         if ((i < 0) && SSL_want_x509_lookup(s))
1564                 {
1565                 return(SSL_ERROR_WANT_X509_LOOKUP);
1566                 }
1567
1568         if (i == 0)
1569                 {
1570                 if (s->version == SSL2_VERSION)
1571                         {
1572                         /* assume it is the socket being closed */
1573                         return(SSL_ERROR_ZERO_RETURN);
1574                         }
1575                 else
1576                         {
1577                         if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1578                                 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1579                                 return(SSL_ERROR_ZERO_RETURN);
1580                         }
1581                 }
1582         return(SSL_ERROR_SYSCALL);
1583         }
1584
1585 int SSL_do_handshake(SSL *s)
1586         {
1587         int ret=1;
1588
1589         if (s->handshake_func == NULL)
1590                 {
1591                 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1592                 return(-1);
1593                 }
1594
1595         s->method->ssl_renegotiate_check(s);
1596
1597         if (SSL_in_init(s) || SSL_in_before(s))
1598                 {
1599                 ret=s->handshake_func(s);
1600                 }
1601         return(ret);
1602         }
1603
1604 /* For the next 2 functions, SSL_clear() sets shutdown and so
1605  * one of these calls will reset it */
1606 void SSL_set_accept_state(SSL *s)
1607         {
1608         s->server=1;
1609         s->shutdown=0;
1610         s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1611         s->handshake_func=s->method->ssl_accept;
1612         /* clear the current cipher */
1613         ssl_clear_cipher_ctx(s);
1614         }
1615
1616 void SSL_set_connect_state(SSL *s)
1617         {
1618         s->server=0;
1619         s->shutdown=0;
1620         s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1621         s->handshake_func=s->method->ssl_connect;
1622         /* clear the current cipher */
1623         ssl_clear_cipher_ctx(s);
1624         }
1625
1626 int ssl_undefined_function(SSL *s)
1627         {
1628         SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1629         return(0);
1630         }
1631
1632 SSL_METHOD *ssl_bad_method(int ver)
1633         {
1634         SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1635         return(NULL);
1636         }
1637
1638 const char *SSL_get_version(SSL *s)
1639         {
1640         if (s->version == TLS1_VERSION)
1641                 return("TLSv1");
1642         else if (s->version == SSL3_VERSION)
1643                 return("SSLv3");
1644         else if (s->version == SSL2_VERSION)
1645                 return("SSLv2");
1646         else
1647                 return("unknown");
1648         }
1649
1650 SSL *SSL_dup(SSL *s)
1651         {
1652         STACK_OF(X509_NAME) *sk;
1653         X509_NAME *xn;
1654         SSL *ret;
1655         int i;
1656                  
1657         if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
1658             return(NULL);
1659                           
1660         if (s->session != NULL)
1661                 {
1662                 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1663                 SSL_copy_session_id(ret,s);
1664                 }
1665         else
1666                 {
1667                 /* No session has been established yet, so we have to expect
1668                  * that s->cert or ret->cert will be changed later --
1669                  * they should not both point to the same object,
1670                  * and thus we can't use SSL_copy_session_id. */
1671
1672                 ret->method = s->method;
1673                 ret->method->ssl_new(ret);
1674
1675                 if (s->cert != NULL)
1676                         {
1677                         ret->cert = ssl_cert_dup(s->cert);
1678                         if (ret->cert == NULL)
1679                                 goto err;
1680                         }
1681                                 
1682                 SSL_set_session_id_context(ret,
1683                         s->sid_ctx, s->sid_ctx_length);
1684                 }
1685
1686         SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1687         SSL_set_verify(ret,SSL_get_verify_mode(s),
1688                 SSL_get_verify_callback(s));
1689         SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
1690
1691         SSL_set_info_callback(ret,SSL_get_info_callback(s));
1692         
1693         ret->debug=s->debug;
1694         ret->options=s->options;
1695
1696         /* copy app data, a little dangerous perhaps */
1697         if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data))
1698                 goto err;
1699
1700         /* setup rbio, and wbio */
1701         if (s->rbio != NULL)
1702                 {
1703                 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1704                         goto err;
1705                 }
1706         if (s->wbio != NULL)
1707                 {
1708                 if (s->wbio != s->rbio)
1709                         {
1710                         if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1711                                 goto err;
1712                         }
1713                 else
1714                         ret->wbio=ret->rbio;
1715                 }
1716
1717         /* dup the cipher_list and cipher_list_by_id stacks */
1718         if (s->cipher_list != NULL)
1719                 {
1720                 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
1721                         goto err;
1722                 }
1723         if (s->cipher_list_by_id != NULL)
1724                 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
1725                         == NULL)
1726                         goto err;
1727
1728         /* Dup the client_CA list */
1729         if (s->client_CA != NULL)
1730                 {
1731                 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
1732                 ret->client_CA=sk;
1733                 for (i=0; i<sk_X509_NAME_num(sk); i++)
1734                         {
1735                         xn=sk_X509_NAME_value(sk,i);
1736                         if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
1737                                 {
1738                                 X509_NAME_free(xn);
1739                                 goto err;
1740                                 }
1741                         }
1742                 }
1743
1744         ret->shutdown=s->shutdown;
1745         ret->state=s->state;
1746         ret->handshake_func=s->handshake_func;
1747         ret->server=s->server;
1748
1749         if (0)
1750                 {
1751 err:
1752                 if (ret != NULL) SSL_free(ret);
1753                 ret=NULL;
1754                 }
1755         return(ret);
1756         }
1757
1758 void ssl_clear_cipher_ctx(SSL *s)
1759         {
1760         if (s->enc_read_ctx != NULL)
1761                 {
1762                 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
1763                 OPENSSL_free(s->enc_read_ctx);
1764                 s->enc_read_ctx=NULL;
1765                 }
1766         if (s->enc_write_ctx != NULL)
1767                 {
1768                 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
1769                 OPENSSL_free(s->enc_write_ctx);
1770                 s->enc_write_ctx=NULL;
1771                 }
1772         if (s->expand != NULL)
1773                 {
1774                 COMP_CTX_free(s->expand);
1775                 s->expand=NULL;
1776                 }
1777         if (s->compress != NULL)
1778                 {
1779                 COMP_CTX_free(s->compress);
1780                 s->compress=NULL;
1781                 }
1782         }
1783
1784 /* Fix this function so that it takes an optional type parameter */
1785 X509 *SSL_get_certificate(SSL *s)
1786         {
1787         if (s->cert != NULL)
1788                 return(s->cert->key->x509);
1789         else
1790                 return(NULL);
1791         }
1792
1793 /* Fix this function so that it takes an optional type parameter */
1794 EVP_PKEY *SSL_get_privatekey(SSL *s)
1795         {
1796         if (s->cert != NULL)
1797                 return(s->cert->key->privatekey);
1798         else
1799                 return(NULL);
1800         }
1801
1802 SSL_CIPHER *SSL_get_current_cipher(SSL *s)
1803         {
1804         if ((s->session != NULL) && (s->session->cipher != NULL))
1805                 return(s->session->cipher);
1806         return(NULL);
1807         }
1808
1809 int ssl_init_wbio_buffer(SSL *s,int push)
1810         {
1811         BIO *bbio;
1812
1813         if (s->bbio == NULL)
1814                 {
1815                 bbio=BIO_new(BIO_f_buffer());
1816                 if (bbio == NULL) return(0);
1817                 s->bbio=bbio;
1818                 }
1819         else
1820                 {
1821                 bbio=s->bbio;
1822                 if (s->bbio == s->wbio)
1823                         s->wbio=BIO_pop(s->wbio);
1824                 }
1825         (void)BIO_reset(bbio);
1826 /*      if (!BIO_set_write_buffer_size(bbio,16*1024)) */
1827         if (!BIO_set_read_buffer_size(bbio,1))
1828                 {
1829                 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
1830                 return(0);
1831                 }
1832         if (push)
1833                 {
1834                 if (s->wbio != bbio)
1835                         s->wbio=BIO_push(bbio,s->wbio);
1836                 }
1837         else
1838                 {
1839                 if (s->wbio == bbio)
1840                         s->wbio=BIO_pop(bbio);
1841                 }
1842         return(1);
1843         }
1844
1845 void ssl_free_wbio_buffer(SSL *s)
1846         {
1847         BIO *under;
1848
1849         if (s->bbio == NULL) return;
1850
1851         if (s->bbio == s->wbio)
1852                 {
1853                 /* remove buffering */
1854                 under=BIO_pop(s->wbio);
1855                 if (under != NULL)
1856                         s->wbio=under;
1857                 else
1858                         abort(); /* ok */
1859                 }
1860         BIO_free(s->bbio);
1861         s->bbio=NULL;
1862         }
1863         
1864 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
1865         {
1866         ctx->quiet_shutdown=mode;
1867         }
1868
1869 int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx)
1870         {
1871         return(ctx->quiet_shutdown);
1872         }
1873
1874 void SSL_set_quiet_shutdown(SSL *s,int mode)
1875         {
1876         s->quiet_shutdown=mode;
1877         }
1878
1879 int SSL_get_quiet_shutdown(SSL *s)
1880         {
1881         return(s->quiet_shutdown);
1882         }
1883
1884 void SSL_set_shutdown(SSL *s,int mode)
1885         {
1886         s->shutdown=mode;
1887         }
1888
1889 int SSL_get_shutdown(SSL *s)
1890         {
1891         return(s->shutdown);
1892         }
1893
1894 int SSL_version(SSL *s)
1895         {
1896         return(s->version);
1897         }
1898
1899 SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
1900         {
1901         return(ssl->ctx);
1902         }
1903
1904 #ifndef NO_STDIO
1905 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
1906         {
1907         return(X509_STORE_set_default_paths(ctx->cert_store));
1908         }
1909
1910 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
1911                 const char *CApath)
1912         {
1913         return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
1914         }
1915 #endif
1916
1917 void SSL_set_info_callback(SSL *ssl,void (*cb)())
1918         {
1919         ssl->info_callback=cb;
1920         }
1921
1922 void (*SSL_get_info_callback(SSL *ssl))(void)
1923         {
1924         return((void (*)())ssl->info_callback);
1925         }
1926
1927 int SSL_state(SSL *ssl)
1928         {
1929         return(ssl->state);
1930         }
1931
1932 void SSL_set_verify_result(SSL *ssl,long arg)
1933         {
1934         ssl->verify_result=arg;
1935         }
1936
1937 long SSL_get_verify_result(SSL *ssl)
1938         {
1939         return(ssl->verify_result);
1940         }
1941
1942 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1943                          CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1944         {
1945         ssl_meth_num++;
1946         return(CRYPTO_get_ex_new_index(ssl_meth_num-1,
1947                 &ssl_meth,argl,argp,new_func,dup_func,free_func));
1948         }
1949
1950 int SSL_set_ex_data(SSL *s,int idx,void *arg)
1951         {
1952         return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1953         }
1954
1955 void *SSL_get_ex_data(SSL *s,int idx)
1956         {
1957         return(CRYPTO_get_ex_data(&s->ex_data,idx));
1958         }
1959
1960 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1961                              CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1962         {
1963         ssl_ctx_meth_num++;
1964         return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1,
1965                 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func));
1966         }
1967
1968 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
1969         {
1970         return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1971         }
1972
1973 void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx)
1974         {
1975         return(CRYPTO_get_ex_data(&s->ex_data,idx));
1976         }
1977
1978 int ssl_ok(SSL *s)
1979         {
1980         return(1);
1981         }
1982
1983 X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx)
1984         {
1985         return(ctx->cert_store);
1986         }
1987
1988 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
1989         {
1990         if (ctx->cert_store != NULL)
1991                 X509_STORE_free(ctx->cert_store);
1992         ctx->cert_store=store;
1993         }
1994
1995 int SSL_want(SSL *s)
1996         {
1997         return(s->rwstate);
1998         }
1999
2000 /*!
2001  * \brief Set the callback for generating temporary RSA keys.
2002  * \param ctx the SSL context.
2003  * \param cb the callback
2004  */
2005
2006 #ifndef NO_RSA
2007 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2008                                                           int is_export,
2009                                                           int keylength))
2010     {
2011     SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2012     }
2013
2014 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2015                                                   int is_export,
2016                                                   int keylength))
2017     {
2018     SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2019     }
2020 #endif
2021
2022 #ifdef DOXYGEN
2023 /*!
2024  * \brief The RSA temporary key callback function.
2025  * \param ssl the SSL session.
2026  * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2027  * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2028  * of the required key in bits.
2029  * \return the temporary RSA key.
2030  * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2031  */
2032
2033 RSA *cb(SSL *ssl,int is_export,int keylength)
2034     {}
2035 #endif
2036
2037 /*!
2038  * \brief Set the callback for generating temporary DH keys.
2039  * \param ctx the SSL context.
2040  * \param dh the callback
2041  */
2042
2043 #ifndef NO_DH
2044 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2045                                                         int keylength))
2046     {
2047     SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2048     }
2049
2050 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2051                                                 int keylength))
2052     {
2053     SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2054     }
2055 #endif
2056
2057 #if defined(_WINDLL) && defined(WIN16)
2058 #include "../crypto/bio/bss_file.c"
2059 #endif
2060
2061 IMPLEMENT_STACK_OF(SSL_CIPHER)
2062 IMPLEMENT_STACK_OF(SSL_COMP)