Allow code which calls RSA temp key callback to cope
[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 *)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                 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         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         return(r);
603         }
604
605 /* Now in theory, since the calling process own 't' it should be safe to
606  * modify.  We need to be able to read f without being hassled */
607 void SSL_copy_session_id(SSL *t,SSL *f)
608         {
609         CERT *tmp;
610
611         /* Do we need to to SSL locking? */
612         SSL_set_session(t,SSL_get_session(f));
613
614         /* what if we are setup as SSLv2 but want to talk SSLv3 or
615          * vice-versa */
616         if (t->method != f->method)
617                 {
618                 t->method->ssl_free(t); /* cleanup current */
619                 t->method=f->method;    /* change method */
620                 t->method->ssl_new(t);  /* setup new */
621                 }
622
623         tmp=t->cert;
624         if (f->cert != NULL)
625                 {
626                 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
627                 t->cert=f->cert;
628                 }
629         else
630                 t->cert=NULL;
631         if (tmp != NULL) ssl_cert_free(tmp);
632         SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
633         }
634
635 /* Fix this so it checks all the valid key/cert options */
636 int SSL_CTX_check_private_key(SSL_CTX *ctx)
637         {
638         if (    (ctx == NULL) ||
639                 (ctx->cert == NULL) ||
640                 (ctx->cert->key->x509 == NULL))
641                 {
642                 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
643                 return(0);
644                 }
645         if      (ctx->cert->key->privatekey == NULL)
646                 {
647                 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
648                 return(0);
649                 }
650         return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
651         }
652
653 /* Fix this function so that it takes an optional type parameter */
654 int SSL_check_private_key(SSL *ssl)
655         {
656         if (ssl == NULL)
657                 {
658                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
659                 return(0);
660                 }
661         if (ssl->cert == NULL)
662                 {
663                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
664                 return 0;
665                 }
666         if (ssl->cert->key->x509 == NULL)
667                 {
668                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
669                 return(0);
670                 }
671         if (ssl->cert->key->privatekey == NULL)
672                 {
673                 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
674                 return(0);
675                 }
676         return(X509_check_private_key(ssl->cert->key->x509,
677                 ssl->cert->key->privatekey));
678         }
679
680 int SSL_accept(SSL *s)
681         {
682         if (s->handshake_func == 0)
683                 /* Not properly initialized yet */
684                 SSL_set_accept_state(s);
685
686         return(s->method->ssl_accept(s));
687         }
688
689 int SSL_connect(SSL *s)
690         {
691         if (s->handshake_func == 0)
692                 /* Not properly initialized yet */
693                 SSL_set_connect_state(s);
694
695         return(s->method->ssl_connect(s));
696         }
697
698 long SSL_get_default_timeout(SSL *s)
699         {
700         return(s->method->get_timeout());
701         }
702
703 int SSL_read(SSL *s,char *buf,int num)
704         {
705         if (s->handshake_func == 0)
706                 {
707                 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
708                 return -1;
709                 }
710
711         if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
712                 {
713                 s->rwstate=SSL_NOTHING;
714                 return(0);
715                 }
716         return(s->method->ssl_read(s,buf,num));
717         }
718
719 int SSL_peek(SSL *s,char *buf,int num)
720         {
721         if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
722                 {
723                 return(0);
724                 }
725         return(s->method->ssl_peek(s,buf,num));
726         }
727
728 int SSL_write(SSL *s,const char *buf,int num)
729         {
730         if (s->handshake_func == 0)
731                 {
732                 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
733                 return -1;
734                 }
735
736         if (s->shutdown & SSL_SENT_SHUTDOWN)
737                 {
738                 s->rwstate=SSL_NOTHING;
739                 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
740                 return(-1);
741                 }
742         return(s->method->ssl_write(s,buf,num));
743         }
744
745 int SSL_shutdown(SSL *s)
746         {
747         /* Note that this function behaves differently from what one might
748          * expect.  Return values are 0 for no success (yet),
749          * 1 for success; but calling it once is usually not enough,
750          * even if blocking I/O is used (see ssl3_shutdown).
751          */
752
753         if (s->handshake_func == 0)
754                 {
755                 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
756                 return -1;
757                 }
758
759         if ((s != NULL) && !SSL_in_init(s))
760                 return(s->method->ssl_shutdown(s));
761         else
762                 return(1);
763         }
764
765 int SSL_renegotiate(SSL *s)
766         {
767         s->new_session=1;
768         return(s->method->ssl_renegotiate(s));
769         }
770
771 long SSL_ctrl(SSL *s,int cmd,long larg,char *parg)
772         {
773         long l;
774
775         switch (cmd)
776                 {
777         case SSL_CTRL_GET_READ_AHEAD:
778                 return(s->read_ahead);
779         case SSL_CTRL_SET_READ_AHEAD:
780                 l=s->read_ahead;
781                 s->read_ahead=larg;
782                 return(l);
783         case SSL_CTRL_OPTIONS:
784                 return(s->options|=larg);
785         case SSL_CTRL_MODE:
786                 return(s->mode|=larg);
787         default:
788                 return(s->method->ssl_ctrl(s,cmd,larg,parg));
789                 }
790         }
791
792 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)())
793         {
794         switch(cmd)
795                 {
796         default:
797                 return(s->method->ssl_callback_ctrl(s,cmd,fp));
798                 }
799         }
800
801 long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg)
802         {
803         long l;
804
805         switch (cmd)
806                 {
807         case SSL_CTRL_GET_READ_AHEAD:
808                 return(ctx->read_ahead);
809         case SSL_CTRL_SET_READ_AHEAD:
810                 l=ctx->read_ahead;
811                 ctx->read_ahead=larg;
812                 return(l);
813
814         case SSL_CTRL_SET_SESS_CACHE_SIZE:
815                 l=ctx->session_cache_size;
816                 ctx->session_cache_size=larg;
817                 return(l);
818         case SSL_CTRL_GET_SESS_CACHE_SIZE:
819                 return(ctx->session_cache_size);
820         case SSL_CTRL_SET_SESS_CACHE_MODE:
821                 l=ctx->session_cache_mode;
822                 ctx->session_cache_mode=larg;
823                 return(l);
824         case SSL_CTRL_GET_SESS_CACHE_MODE:
825                 return(ctx->session_cache_mode);
826
827         case SSL_CTRL_SESS_NUMBER:
828                 return(ctx->sessions->num_items);
829         case SSL_CTRL_SESS_CONNECT:
830                 return(ctx->stats.sess_connect);
831         case SSL_CTRL_SESS_CONNECT_GOOD:
832                 return(ctx->stats.sess_connect_good);
833         case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
834                 return(ctx->stats.sess_connect_renegotiate);
835         case SSL_CTRL_SESS_ACCEPT:
836                 return(ctx->stats.sess_accept);
837         case SSL_CTRL_SESS_ACCEPT_GOOD:
838                 return(ctx->stats.sess_accept_good);
839         case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
840                 return(ctx->stats.sess_accept_renegotiate);
841         case SSL_CTRL_SESS_HIT:
842                 return(ctx->stats.sess_hit);
843         case SSL_CTRL_SESS_CB_HIT:
844                 return(ctx->stats.sess_cb_hit);
845         case SSL_CTRL_SESS_MISSES:
846                 return(ctx->stats.sess_miss);
847         case SSL_CTRL_SESS_TIMEOUTS:
848                 return(ctx->stats.sess_timeout);
849         case SSL_CTRL_SESS_CACHE_FULL:
850                 return(ctx->stats.sess_cache_full);
851         case SSL_CTRL_OPTIONS:
852                 return(ctx->options|=larg);
853         case SSL_CTRL_MODE:
854                 return(ctx->mode|=larg);
855         default:
856                 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
857                 }
858         }
859
860 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)())
861         {
862         switch(cmd)
863                 {
864         default:
865                 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
866                 }
867         }
868
869 int ssl_cipher_id_cmp(SSL_CIPHER *a,SSL_CIPHER *b)
870         {
871         long l;
872
873         l=a->id-b->id;
874         if (l == 0L)
875                 return(0);
876         else
877                 return((l > 0)?1:-1);
878         }
879
880 int ssl_cipher_ptr_id_cmp(SSL_CIPHER **ap,SSL_CIPHER **bp)
881         {
882         long l;
883
884         l=(*ap)->id-(*bp)->id;
885         if (l == 0L)
886                 return(0);
887         else
888                 return((l > 0)?1:-1);
889         }
890
891 /** return a STACK of the ciphers available for the SSL and in order of
892  * preference */
893 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s)
894         {
895         if ((s != NULL) && (s->cipher_list != NULL))
896                 {
897                 return(s->cipher_list);
898                 }
899         else if ((s->ctx != NULL) &&
900                 (s->ctx->cipher_list != NULL))
901                 {
902                 return(s->ctx->cipher_list);
903                 }
904         return(NULL);
905         }
906
907 /** return a STACK of the ciphers available for the SSL and in order of
908  * algorithm id */
909 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
910         {
911         if ((s != NULL) && (s->cipher_list_by_id != NULL))
912                 {
913                 return(s->cipher_list_by_id);
914                 }
915         else if ((s != NULL) && (s->ctx != NULL) &&
916                 (s->ctx->cipher_list_by_id != NULL))
917                 {
918                 return(s->ctx->cipher_list_by_id);
919                 }
920         return(NULL);
921         }
922
923 /** The old interface to get the same thing as SSL_get_ciphers() */
924 const char *SSL_get_cipher_list(SSL *s,int n)
925         {
926         SSL_CIPHER *c;
927         STACK_OF(SSL_CIPHER) *sk;
928
929         if (s == NULL) return(NULL);
930         sk=SSL_get_ciphers(s);
931         if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
932                 return(NULL);
933         c=sk_SSL_CIPHER_value(sk,n);
934         if (c == NULL) return(NULL);
935         return(c->name);
936         }
937
938 /** specify the ciphers to be used by default by the SSL_CTX */
939 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
940         {
941         STACK_OF(SSL_CIPHER) *sk;
942         
943         sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
944                 &ctx->cipher_list_by_id,str);
945 /* XXXX */
946         return((sk == NULL)?0:1);
947         }
948
949 /** specify the ciphers to be used by the SSL */
950 int SSL_set_cipher_list(SSL *s,const char *str)
951         {
952         STACK_OF(SSL_CIPHER) *sk;
953         
954         sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
955                 &s->cipher_list_by_id,str);
956 /* XXXX */
957         return((sk == NULL)?0:1);
958         }
959
960 /* works well for SSLv2, not so good for SSLv3 */
961 char *SSL_get_shared_ciphers(SSL *s,char *buf,int len)
962         {
963         char *p;
964         const char *cp;
965         STACK_OF(SSL_CIPHER) *sk;
966         SSL_CIPHER *c;
967         int i;
968
969         if ((s->session == NULL) || (s->session->ciphers == NULL) ||
970                 (len < 2))
971                 return(NULL);
972
973         p=buf;
974         sk=s->session->ciphers;
975         for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
976                 {
977                 /* Decrement for either the ':' or a '\0' */
978                 len--;
979                 c=sk_SSL_CIPHER_value(sk,i);
980                 for (cp=c->name; *cp; )
981                         {
982                         if (len-- == 0)
983                                 {
984                                 *p='\0';
985                                 return(buf);
986                                 }
987                         else
988                                 *(p++)= *(cp++);
989                         }
990                 *(p++)=':';
991                 }
992         p[-1]='\0';
993         return(buf);
994         }
995
996 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
997         {
998         int i,j=0;
999         SSL_CIPHER *c;
1000         unsigned char *q;
1001
1002         if (sk == NULL) return(0);
1003         q=p;
1004
1005         for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1006                 {
1007                 c=sk_SSL_CIPHER_value(sk,i);
1008                 j=ssl_put_cipher_by_char(s,c,p);
1009                 p+=j;
1010                 }
1011         return(p-q);
1012         }
1013
1014 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1015                                                STACK_OF(SSL_CIPHER) **skp)
1016         {
1017         SSL_CIPHER *c;
1018         STACK_OF(SSL_CIPHER) *sk;
1019         int i,n;
1020
1021         n=ssl_put_cipher_by_char(s,NULL,NULL);
1022         if ((num%n) != 0)
1023                 {
1024                 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1025                 return(NULL);
1026                 }
1027         if ((skp == NULL) || (*skp == NULL))
1028                 sk=sk_SSL_CIPHER_new(NULL); /* change perhaps later */
1029         else
1030                 {
1031                 sk= *skp;
1032                 sk_SSL_CIPHER_zero(sk);
1033                 }
1034
1035         for (i=0; i<num; i+=n)
1036                 {
1037                 c=ssl_get_cipher_by_char(s,p);
1038                 p+=n;
1039                 if (c != NULL)
1040                         {
1041                         if (!sk_SSL_CIPHER_push(sk,c))
1042                                 {
1043                                 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1044                                 goto err;
1045                                 }
1046                         }
1047                 }
1048
1049         if (skp != NULL)
1050                 *skp=sk;
1051         return(sk);
1052 err:
1053         if ((skp == NULL) || (*skp == NULL))
1054                 sk_SSL_CIPHER_free(sk);
1055         return(NULL);
1056         }
1057
1058 unsigned long SSL_SESSION_hash(SSL_SESSION *a)
1059         {
1060         unsigned long l;
1061
1062         l=(unsigned long)
1063                 ((unsigned int) a->session_id[0]     )|
1064                 ((unsigned int) a->session_id[1]<< 8L)|
1065                 ((unsigned long)a->session_id[2]<<16L)|
1066                 ((unsigned long)a->session_id[3]<<24L);
1067         return(l);
1068         }
1069
1070 int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
1071         {
1072         if (a->ssl_version != b->ssl_version)
1073                 return(1);
1074         if (a->session_id_length != b->session_id_length)
1075                 return(1);
1076         return(memcmp(a->session_id,b->session_id,a->session_id_length));
1077         }
1078
1079 SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1080         {
1081         SSL_CTX *ret=NULL;
1082         
1083         if (meth == NULL)
1084                 {
1085                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1086                 return(NULL);
1087                 }
1088
1089         if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1090                 {
1091                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1092                 goto err;
1093                 }
1094         ret=(SSL_CTX *)Malloc(sizeof(SSL_CTX));
1095         if (ret == NULL)
1096                 goto err;
1097
1098         memset(ret,0,sizeof(SSL_CTX));
1099
1100         ret->method=meth;
1101
1102         ret->cert_store=NULL;
1103         ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1104         ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1105         ret->session_cache_head=NULL;
1106         ret->session_cache_tail=NULL;
1107
1108         /* We take the system default */
1109         ret->session_timeout=meth->get_timeout();
1110
1111         ret->new_session_cb=NULL;
1112         ret->remove_session_cb=NULL;
1113         ret->get_session_cb=NULL;
1114
1115         memset((char *)&ret->stats,0,sizeof(ret->stats));
1116
1117         ret->references=1;
1118         ret->quiet_shutdown=0;
1119
1120 /*      ret->cipher=NULL;*/
1121 /*      ret->s2->challenge=NULL;
1122         ret->master_key=NULL;
1123         ret->key_arg=NULL;
1124         ret->s2->conn_id=NULL; */
1125
1126         ret->info_callback=NULL;
1127
1128         ret->app_verify_callback=NULL;
1129         ret->app_verify_arg=NULL;
1130
1131         ret->read_ahead=0;
1132         ret->verify_mode=SSL_VERIFY_NONE;
1133         ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1134         ret->default_verify_callback=NULL;
1135         if ((ret->cert=ssl_cert_new()) == NULL)
1136                 goto err;
1137
1138         ret->default_passwd_callback=NULL;
1139         ret->default_passwd_callback_userdata=NULL;
1140         ret->client_cert_cb=NULL;
1141
1142         ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp);
1143         if (ret->sessions == NULL) goto err;
1144         ret->cert_store=X509_STORE_new();
1145         if (ret->cert_store == NULL) goto err;
1146
1147         ssl_create_cipher_list(ret->method,
1148                 &ret->cipher_list,&ret->cipher_list_by_id,
1149                 SSL_DEFAULT_CIPHER_LIST);
1150         if (ret->cipher_list == NULL
1151             || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1152                 {
1153                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1154                 goto err2;
1155                 }
1156
1157         if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1158                 {
1159                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1160                 goto err2;
1161                 }
1162         if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1163                 {
1164                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1165                 goto err2;
1166                 }
1167         if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1168                 {
1169                 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1170                 goto err2;
1171                 }
1172
1173         if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1174                 goto err;
1175
1176         CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data);
1177
1178         ret->extra_certs=NULL;
1179         ret->comp_methods=SSL_COMP_get_compression_methods();
1180
1181         return(ret);
1182 err:
1183         SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1184 err2:
1185         if (ret != NULL) SSL_CTX_free(ret);
1186         return(NULL);
1187         }
1188
1189 static void SSL_COMP_free(SSL_COMP *comp)
1190     { Free(comp); }
1191
1192 void SSL_CTX_free(SSL_CTX *a)
1193         {
1194         int i;
1195
1196         if (a == NULL) return;
1197
1198         i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1199 #ifdef REF_PRINT
1200         REF_PRINT("SSL_CTX",a);
1201 #endif
1202         if (i > 0) return;
1203 #ifdef REF_CHECK
1204         if (i < 0)
1205                 {
1206                 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1207                 abort(); /* ok */
1208                 }
1209 #endif
1210         CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data);
1211
1212         if (a->sessions != NULL)
1213                 {
1214                 SSL_CTX_flush_sessions(a,0);
1215                 lh_free(a->sessions);
1216                 }
1217         if (a->cert_store != NULL)
1218                 X509_STORE_free(a->cert_store);
1219         if (a->cipher_list != NULL)
1220                 sk_SSL_CIPHER_free(a->cipher_list);
1221         if (a->cipher_list_by_id != NULL)
1222                 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1223         if (a->cert != NULL)
1224                 ssl_cert_free(a->cert);
1225         if (a->client_CA != NULL)
1226                 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1227         if (a->extra_certs != NULL)
1228                 sk_X509_pop_free(a->extra_certs,X509_free);
1229         if (a->comp_methods != NULL)
1230                 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1231         Free(a);
1232         }
1233
1234 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1235         {
1236         ctx->default_passwd_callback=cb;
1237         }
1238
1239 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1240         {
1241         ctx->default_passwd_callback_userdata=u;
1242         }
1243
1244 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg)
1245         {
1246         /* now
1247          *     int (*cb)(X509_STORE_CTX *),
1248          * but should be
1249          *     int (*cb)(X509_STORE_CTX *, void *arg)
1250          */
1251         ctx->app_verify_callback=cb;
1252         ctx->app_verify_arg=arg; /* never used */
1253         }
1254
1255 void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1256         {
1257         ctx->verify_mode=mode;
1258         ctx->default_verify_callback=cb;
1259         /* This needs cleaning up EAY EAY EAY */
1260         X509_STORE_set_verify_cb_func(ctx->cert_store,cb);
1261         }
1262
1263 void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1264         {
1265         ctx->verify_depth=depth;
1266         }
1267
1268 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1269         {
1270         CERT_PKEY *cpk;
1271         int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1272         int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1273         int rsa_tmp_export,dh_tmp_export,kl;
1274         unsigned long mask,emask;
1275
1276         if (c == NULL) return;
1277
1278         kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1279
1280 #ifndef NO_RSA
1281         rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1282         rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1283                 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1284 #else
1285         rsa_tmp=rsa_tmp_export=0;
1286 #endif
1287 #ifndef NO_DH
1288         dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1289         dh_tmp_export=(c->dh_tmp_cb != NULL ||
1290                 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1291 #else
1292         dh_tmp=dh_tmp_export=0;
1293 #endif
1294
1295         cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1296         rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1297         rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1298         cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1299         rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1300         cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1301         dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1302         cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1303         dh_rsa=  (cpk->x509 != NULL && cpk->privatekey != NULL);
1304         dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1305         cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1306 /* FIX THIS EAY EAY EAY */
1307         dh_dsa=  (cpk->x509 != NULL && cpk->privatekey != NULL);
1308         dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1309
1310         mask=0;
1311         emask=0;
1312
1313 #ifdef CIPHER_DEBUG
1314         printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1315                 rsa_tmp,rsa_tmp_export,dh_tmp,
1316                 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1317 #endif
1318
1319         if (rsa_enc || (rsa_tmp && rsa_sign))
1320                 mask|=SSL_kRSA;
1321         if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1322                 emask|=SSL_kRSA;
1323
1324 #if 0
1325         /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1326         if (    (dh_tmp || dh_rsa || dh_dsa) && 
1327                 (rsa_enc || rsa_sign || dsa_sign))
1328                 mask|=SSL_kEDH;
1329         if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1330                 (rsa_enc || rsa_sign || dsa_sign))
1331                 emask|=SSL_kEDH;
1332 #endif
1333
1334         if (dh_tmp_export) 
1335                 emask|=SSL_kEDH;
1336
1337         if (dh_tmp)
1338                 mask|=SSL_kEDH;
1339
1340         if (dh_rsa) mask|=SSL_kDHr;
1341         if (dh_rsa_export) emask|=SSL_kDHr;
1342
1343         if (dh_dsa) mask|=SSL_kDHd;
1344         if (dh_dsa_export) emask|=SSL_kDHd;
1345
1346         if (rsa_enc || rsa_sign)
1347                 {
1348                 mask|=SSL_aRSA;
1349                 emask|=SSL_aRSA;
1350                 }
1351
1352         if (dsa_sign)
1353                 {
1354                 mask|=SSL_aDSS;
1355                 emask|=SSL_aDSS;
1356                 }
1357
1358         mask|=SSL_aNULL;
1359         emask|=SSL_aNULL;
1360
1361         c->mask=mask;
1362         c->export_mask=emask;
1363         c->valid=1;
1364         }
1365
1366 /* THIS NEEDS CLEANING UP */
1367 X509 *ssl_get_server_send_cert(SSL *s)
1368         {
1369         unsigned long alg,mask,kalg;
1370         CERT *c;
1371         int i,is_export;
1372
1373         c=s->cert;
1374         ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1375         alg=s->s3->tmp.new_cipher->algorithms;
1376         is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1377         mask=is_export?c->export_mask:c->mask;
1378         kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1379
1380         if      (kalg & SSL_kDHr)
1381                 i=SSL_PKEY_DH_RSA;
1382         else if (kalg & SSL_kDHd)
1383                 i=SSL_PKEY_DH_DSA;
1384         else if (kalg & SSL_aDSS)
1385                 i=SSL_PKEY_DSA_SIGN;
1386         else if (kalg & SSL_aRSA)
1387                 {
1388                 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1389                         i=SSL_PKEY_RSA_SIGN;
1390                 else
1391                         i=SSL_PKEY_RSA_ENC;
1392                 }
1393         else /* if (kalg & SSL_aNULL) */
1394                 {
1395                 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR);
1396                 return(NULL);
1397                 }
1398         if (c->pkeys[i].x509 == NULL) return(NULL);
1399         return(c->pkeys[i].x509);
1400         }
1401
1402 EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1403         {
1404         unsigned long alg;
1405         CERT *c;
1406
1407         alg=cipher->algorithms;
1408         c=s->cert;
1409
1410         if ((alg & SSL_aDSS) &&
1411                 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1412                 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1413         else if (alg & SSL_aRSA)
1414                 {
1415                 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1416                         return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1417                 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1418                         return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1419                 else
1420                         return(NULL);
1421                 }
1422         else /* if (alg & SSL_aNULL) */
1423                 {
1424                 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR);
1425                 return(NULL);
1426                 }
1427         }
1428
1429 void ssl_update_cache(SSL *s,int mode)
1430         {
1431         int i;
1432
1433         /* If the session_id_length is 0, we are not supposed to cache it,
1434          * and it would be rather hard to do anyway :-) */
1435         if (s->session->session_id_length == 0) return;
1436
1437         if ((s->ctx->session_cache_mode & mode)
1438                 && (!s->hit)
1439                 && SSL_CTX_add_session(s->ctx,s->session)
1440                 && (s->ctx->new_session_cb != NULL))
1441                 {
1442                 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1443                 if (!s->ctx->new_session_cb(s,s->session))
1444                         SSL_SESSION_free(s->session);
1445                 }
1446
1447         /* auto flush every 255 connections */
1448         i=s->ctx->session_cache_mode;
1449         if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1450                 ((i & mode) == mode))
1451                 {
1452                 if (  (((mode & SSL_SESS_CACHE_CLIENT)
1453                         ?s->ctx->stats.sess_connect_good
1454                         :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1455                         {
1456                         SSL_CTX_flush_sessions(s->ctx,time(NULL));
1457                         }
1458                 }
1459         }
1460
1461 SSL_METHOD *SSL_get_ssl_method(SSL *s)
1462         {
1463         return(s->method);
1464         }
1465
1466 int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1467         {
1468         int conn= -1;
1469         int ret=1;
1470
1471         if (s->method != meth)
1472                 {
1473                 if (s->handshake_func != NULL)
1474                         conn=(s->handshake_func == s->method->ssl_connect);
1475
1476                 if (s->method->version == meth->version)
1477                         s->method=meth;
1478                 else
1479                         {
1480                         s->method->ssl_free(s);
1481                         s->method=meth;
1482                         ret=s->method->ssl_new(s);
1483                         }
1484
1485                 if (conn == 1)
1486                         s->handshake_func=meth->ssl_connect;
1487                 else if (conn == 0)
1488                         s->handshake_func=meth->ssl_accept;
1489                 }
1490         return(ret);
1491         }
1492
1493 int SSL_get_error(SSL *s,int i)
1494         {
1495         int reason;
1496         unsigned long l;
1497         BIO *bio;
1498
1499         if (i > 0) return(SSL_ERROR_NONE);
1500
1501         /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1502          * etc, where we do encode the error */
1503         if ((l=ERR_peek_error()) != 0)
1504                 {
1505                 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1506                         return(SSL_ERROR_SYSCALL);
1507                 else
1508                         return(SSL_ERROR_SSL);
1509                 }
1510
1511         if ((i < 0) && SSL_want_read(s))
1512                 {
1513                 bio=SSL_get_rbio(s);
1514                 if (BIO_should_read(bio))
1515                         return(SSL_ERROR_WANT_READ);
1516                 else if (BIO_should_write(bio))
1517                         /* This one doesn't make too much sense ... We never try
1518                          * to write to the rbio, and an application program where
1519                          * rbio and wbio are separate couldn't even know what it
1520                          * should wait for.
1521                          * However if we ever set s->rwstate incorrectly
1522                          * (so that we have SSL_want_read(s) instead of
1523                          * SSL_want_write(s)) and rbio and wbio *are* the same,
1524                          * this test works around that bug; so it might be safer
1525                          * to keep it. */
1526                         return(SSL_ERROR_WANT_WRITE);
1527                 else if (BIO_should_io_special(bio))
1528                         {
1529                         reason=BIO_get_retry_reason(bio);
1530                         if (reason == BIO_RR_CONNECT)
1531                                 return(SSL_ERROR_WANT_CONNECT);
1532                         else
1533                                 return(SSL_ERROR_SYSCALL); /* unknown */
1534                         }
1535                 }
1536
1537         if ((i < 0) && SSL_want_write(s))
1538                 {
1539                 bio=SSL_get_wbio(s);
1540                 if (BIO_should_write(bio))
1541                         return(SSL_ERROR_WANT_WRITE);
1542                 else if (BIO_should_read(bio))
1543                         /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1544                         return(SSL_ERROR_WANT_READ);
1545                 else if (BIO_should_io_special(bio))
1546                         {
1547                         reason=BIO_get_retry_reason(bio);
1548                         if (reason == BIO_RR_CONNECT)
1549                                 return(SSL_ERROR_WANT_CONNECT);
1550                         else
1551                                 return(SSL_ERROR_SYSCALL);
1552                         }
1553                 }
1554         if ((i < 0) && SSL_want_x509_lookup(s))
1555                 {
1556                 return(SSL_ERROR_WANT_X509_LOOKUP);
1557                 }
1558
1559         if (i == 0)
1560                 {
1561                 if (s->version == SSL2_VERSION)
1562                         {
1563                         /* assume it is the socket being closed */
1564                         return(SSL_ERROR_ZERO_RETURN);
1565                         }
1566                 else
1567                         {
1568                         if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1569                                 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1570                                 return(SSL_ERROR_ZERO_RETURN);
1571                         }
1572                 }
1573         return(SSL_ERROR_SYSCALL);
1574         }
1575
1576 int SSL_do_handshake(SSL *s)
1577         {
1578         int ret=1;
1579
1580         if (s->handshake_func == NULL)
1581                 {
1582                 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1583                 return(-1);
1584                 }
1585
1586         s->method->ssl_renegotiate_check(s);
1587
1588         if (SSL_in_init(s) || SSL_in_before(s))
1589                 {
1590                 ret=s->handshake_func(s);
1591                 }
1592         return(ret);
1593         }
1594
1595 /* For the next 2 functions, SSL_clear() sets shutdown and so
1596  * one of these calls will reset it */
1597 void SSL_set_accept_state(SSL *s)
1598         {
1599         s->server=1;
1600         s->shutdown=0;
1601         s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1602         s->handshake_func=s->method->ssl_accept;
1603         /* clear the current cipher */
1604         ssl_clear_cipher_ctx(s);
1605         }
1606
1607 void SSL_set_connect_state(SSL *s)
1608         {
1609         s->server=0;
1610         s->shutdown=0;
1611         s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1612         s->handshake_func=s->method->ssl_connect;
1613         /* clear the current cipher */
1614         ssl_clear_cipher_ctx(s);
1615         }
1616
1617 int ssl_undefined_function(SSL *s)
1618         {
1619         SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1620         return(0);
1621         }
1622
1623 SSL_METHOD *ssl_bad_method(int ver)
1624         {
1625         SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1626         return(NULL);
1627         }
1628
1629 const char *SSL_get_version(SSL *s)
1630         {
1631         if (s->version == TLS1_VERSION)
1632                 return("TLSv1");
1633         else if (s->version == SSL3_VERSION)
1634                 return("SSLv3");
1635         else if (s->version == SSL2_VERSION)
1636                 return("SSLv2");
1637         else
1638                 return("unknown");
1639         }
1640
1641 SSL *SSL_dup(SSL *s)
1642         {
1643         STACK_OF(X509_NAME) *sk;
1644         X509_NAME *xn;
1645         SSL *ret;
1646         int i;
1647                  
1648         if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
1649             return(NULL);
1650                           
1651         if (s->session != NULL)
1652                 {
1653                 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1654                 SSL_copy_session_id(ret,s);
1655                 }
1656         else
1657                 {
1658                 /* No session has been established yet, so we have to expect
1659                  * that s->cert or ret->cert will be changed later --
1660                  * they should not both point to the same object,
1661                  * and thus we can't use SSL_copy_session_id. */
1662
1663                 ret->method = s->method;
1664                 ret->method->ssl_new(ret);
1665
1666                 if (s->cert != NULL)
1667                         {
1668                         ret->cert = ssl_cert_dup(s->cert);
1669                         if (ret->cert == NULL)
1670                                 goto err;
1671                         }
1672                                 
1673                 SSL_set_session_id_context(ret,
1674                         s->sid_ctx, s->sid_ctx_length);
1675                 }
1676
1677         SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1678         SSL_set_verify(ret,SSL_get_verify_mode(s),
1679                 SSL_get_verify_callback(s));
1680         SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
1681
1682         SSL_set_info_callback(ret,SSL_get_info_callback(s));
1683         
1684         ret->debug=s->debug;
1685         ret->options=s->options;
1686
1687         /* copy app data, a little dangerous perhaps */
1688         if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data))
1689                 goto err;
1690
1691         /* setup rbio, and wbio */
1692         if (s->rbio != NULL)
1693                 {
1694                 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1695                         goto err;
1696                 }
1697         if (s->wbio != NULL)
1698                 {
1699                 if (s->wbio != s->rbio)
1700                         {
1701                         if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1702                                 goto err;
1703                         }
1704                 else
1705                         ret->wbio=ret->rbio;
1706                 }
1707
1708         /* dup the cipher_list and cipher_list_by_id stacks */
1709         if (s->cipher_list != NULL)
1710                 {
1711                 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
1712                         goto err;
1713                 }
1714         if (s->cipher_list_by_id != NULL)
1715                 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
1716                         == NULL)
1717                         goto err;
1718
1719         /* Dup the client_CA list */
1720         if (s->client_CA != NULL)
1721                 {
1722                 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
1723                 ret->client_CA=sk;
1724                 for (i=0; i<sk_X509_NAME_num(sk); i++)
1725                         {
1726                         xn=sk_X509_NAME_value(sk,i);
1727                         if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
1728                                 {
1729                                 X509_NAME_free(xn);
1730                                 goto err;
1731                                 }
1732                         }
1733                 }
1734
1735         ret->shutdown=s->shutdown;
1736         ret->state=s->state;
1737         ret->handshake_func=s->handshake_func;
1738         ret->server=s->server;
1739
1740         if (0)
1741                 {
1742 err:
1743                 if (ret != NULL) SSL_free(ret);
1744                 ret=NULL;
1745                 }
1746         return(ret);
1747         }
1748
1749 void ssl_clear_cipher_ctx(SSL *s)
1750         {
1751         if (s->enc_read_ctx != NULL)
1752                 {
1753                 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
1754                 Free(s->enc_read_ctx);
1755                 s->enc_read_ctx=NULL;
1756                 }
1757         if (s->enc_write_ctx != NULL)
1758                 {
1759                 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
1760                 Free(s->enc_write_ctx);
1761                 s->enc_write_ctx=NULL;
1762                 }
1763         if (s->expand != NULL)
1764                 {
1765                 COMP_CTX_free(s->expand);
1766                 s->expand=NULL;
1767                 }
1768         if (s->compress != NULL)
1769                 {
1770                 COMP_CTX_free(s->compress);
1771                 s->compress=NULL;
1772                 }
1773         }
1774
1775 /* Fix this function so that it takes an optional type parameter */
1776 X509 *SSL_get_certificate(SSL *s)
1777         {
1778         if (s->cert != NULL)
1779                 return(s->cert->key->x509);
1780         else
1781                 return(NULL);
1782         }
1783
1784 /* Fix this function so that it takes an optional type parameter */
1785 EVP_PKEY *SSL_get_privatekey(SSL *s)
1786         {
1787         if (s->cert != NULL)
1788                 return(s->cert->key->privatekey);
1789         else
1790                 return(NULL);
1791         }
1792
1793 SSL_CIPHER *SSL_get_current_cipher(SSL *s)
1794         {
1795         if ((s->session != NULL) && (s->session->cipher != NULL))
1796                 return(s->session->cipher);
1797         return(NULL);
1798         }
1799
1800 int ssl_init_wbio_buffer(SSL *s,int push)
1801         {
1802         BIO *bbio;
1803
1804         if (s->bbio == NULL)
1805                 {
1806                 bbio=BIO_new(BIO_f_buffer());
1807                 if (bbio == NULL) return(0);
1808                 s->bbio=bbio;
1809                 }
1810         else
1811                 {
1812                 bbio=s->bbio;
1813                 if (s->bbio == s->wbio)
1814                         s->wbio=BIO_pop(s->wbio);
1815                 }
1816         (void)BIO_reset(bbio);
1817 /*      if (!BIO_set_write_buffer_size(bbio,16*1024)) */
1818         if (!BIO_set_read_buffer_size(bbio,1))
1819                 {
1820                 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
1821                 return(0);
1822                 }
1823         if (push)
1824                 {
1825                 if (s->wbio != bbio)
1826                         s->wbio=BIO_push(bbio,s->wbio);
1827                 }
1828         else
1829                 {
1830                 if (s->wbio == bbio)
1831                         s->wbio=BIO_pop(bbio);
1832                 }
1833         return(1);
1834         }
1835
1836 void ssl_free_wbio_buffer(SSL *s)
1837         {
1838         BIO *under;
1839
1840         if (s->bbio == NULL) return;
1841
1842         if (s->bbio == s->wbio)
1843                 {
1844                 /* remove buffering */
1845                 under=BIO_pop(s->wbio);
1846                 if (under != NULL)
1847                         s->wbio=under;
1848                 else
1849                         abort(); /* ok */
1850                 }
1851         BIO_free(s->bbio);
1852         s->bbio=NULL;
1853         }
1854         
1855 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
1856         {
1857         ctx->quiet_shutdown=mode;
1858         }
1859
1860 int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx)
1861         {
1862         return(ctx->quiet_shutdown);
1863         }
1864
1865 void SSL_set_quiet_shutdown(SSL *s,int mode)
1866         {
1867         s->quiet_shutdown=mode;
1868         }
1869
1870 int SSL_get_quiet_shutdown(SSL *s)
1871         {
1872         return(s->quiet_shutdown);
1873         }
1874
1875 void SSL_set_shutdown(SSL *s,int mode)
1876         {
1877         s->shutdown=mode;
1878         }
1879
1880 int SSL_get_shutdown(SSL *s)
1881         {
1882         return(s->shutdown);
1883         }
1884
1885 int SSL_version(SSL *s)
1886         {
1887         return(s->version);
1888         }
1889
1890 SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
1891         {
1892         return(ssl->ctx);
1893         }
1894
1895 #ifndef NO_STDIO
1896 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
1897         {
1898         return(X509_STORE_set_default_paths(ctx->cert_store));
1899         }
1900
1901 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
1902                 const char *CApath)
1903         {
1904         return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
1905         }
1906 #endif
1907
1908 void SSL_set_info_callback(SSL *ssl,void (*cb)())
1909         {
1910         ssl->info_callback=cb;
1911         }
1912
1913 void (*SSL_get_info_callback(SSL *ssl))(void)
1914         {
1915         return((void (*)())ssl->info_callback);
1916         }
1917
1918 int SSL_state(SSL *ssl)
1919         {
1920         return(ssl->state);
1921         }
1922
1923 void SSL_set_verify_result(SSL *ssl,long arg)
1924         {
1925         ssl->verify_result=arg;
1926         }
1927
1928 long SSL_get_verify_result(SSL *ssl)
1929         {
1930         return(ssl->verify_result);
1931         }
1932
1933 int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1934                          CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1935         {
1936         ssl_meth_num++;
1937         return(CRYPTO_get_ex_new_index(ssl_meth_num-1,
1938                 &ssl_meth,argl,argp,new_func,dup_func,free_func));
1939         }
1940
1941 int SSL_set_ex_data(SSL *s,int idx,void *arg)
1942         {
1943         return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1944         }
1945
1946 void *SSL_get_ex_data(SSL *s,int idx)
1947         {
1948         return(CRYPTO_get_ex_data(&s->ex_data,idx));
1949         }
1950
1951 int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
1952                              CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
1953         {
1954         ssl_ctx_meth_num++;
1955         return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1,
1956                 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func));
1957         }
1958
1959 int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
1960         {
1961         return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1962         }
1963
1964 void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx)
1965         {
1966         return(CRYPTO_get_ex_data(&s->ex_data,idx));
1967         }
1968
1969 int ssl_ok(SSL *s)
1970         {
1971         return(1);
1972         }
1973
1974 X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx)
1975         {
1976         return(ctx->cert_store);
1977         }
1978
1979 void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
1980         {
1981         if (ctx->cert_store != NULL)
1982                 X509_STORE_free(ctx->cert_store);
1983         ctx->cert_store=store;
1984         }
1985
1986 int SSL_want(SSL *s)
1987         {
1988         return(s->rwstate);
1989         }
1990
1991 /*!
1992  * \brief Set the callback for generating temporary RSA keys.
1993  * \param ctx the SSL context.
1994  * \param cb the callback
1995  */
1996
1997 #ifndef NO_RSA
1998 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
1999                                                           int is_export,
2000                                                           int keylength))
2001     {
2002     SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2003     }
2004
2005 void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2006                                                   int is_export,
2007                                                   int keylength))
2008     {
2009     SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2010     }
2011 #endif
2012
2013 #ifdef DOXYGEN
2014 /*!
2015  * \brief The RSA temporary key callback function.
2016  * \param ssl the SSL session.
2017  * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2018  * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2019  * of the required key in bits.
2020  * \return the temporary RSA key.
2021  * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2022  */
2023
2024 RSA *cb(SSL *ssl,int is_export,int keylength)
2025     {}
2026 #endif
2027
2028 /*!
2029  * \brief Set the callback for generating temporary DH keys.
2030  * \param ctx the SSL context.
2031  * \param dh the callback
2032  */
2033
2034 #ifndef NO_DH
2035 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2036                                                         int keylength))
2037     {
2038     SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2039     }
2040
2041 void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2042                                                 int keylength))
2043     {
2044     SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2045     }
2046 #endif
2047
2048 #if defined(_WINDLL) && defined(WIN16)
2049 #include "../crypto/bio/bss_file.c"
2050 #endif
2051
2052 IMPLEMENT_STACK_OF(SSL_CIPHER)
2053 IMPLEMENT_STACK_OF(SSL_COMP)