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1/* ssl/ssl_lib.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#include <stdio.h>
60#include "objects.h"
61#include "lhash.h"
62#include "ssl_locl.h"
63
64char *SSL_version_str="SSLeay 0.9.0b 29-Jun-1998";
65
66static STACK *ssl_meth=NULL;
67static STACK *ssl_ctx_meth=NULL;
68static int ssl_meth_num=0;
69static int ssl_ctx_meth_num=0;
70
71SSL3_ENC_METHOD ssl3_undef_enc_method={
72 ssl_undefined_function,
73 ssl_undefined_function,
74 ssl_undefined_function,
75 ssl_undefined_function,
76 ssl_undefined_function,
77 ssl_undefined_function,
78 };
79
80void SSL_clear(s)
81SSL *s;
82 {
83 int state;
84
85 if (s->method == NULL) return;
86
87 s->error=0;
88 s->hit=0;
89
90 /* This is set if we are doing dynamic renegotiation so keep
91 * the old cipher. It is sort of a SSL_clear_lite :-) */
92 if (s->new_session) return;
93
94 state=s->state; /* Keep to check if we throw away the session-id */
95 s->type=0;
96
97 s->version=s->method->version;
98 s->rwstate=SSL_NOTHING;
99 s->state=SSL_ST_BEFORE;
100 s->rstate=SSL_ST_READ_HEADER;
101 s->read_ahead=s->ctx->default_read_ahead;
102
103/* s->shutdown=(SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN); */
104
105 if (s->init_buf != NULL)
106 {
107 BUF_MEM_free(s->init_buf);
108 s->init_buf=NULL;
109 }
110
111 ssl_clear_cipher_ctx(s);
112
113 if (ssl_clear_bad_session(s))
114 {
115 SSL_SESSION_free(s->session);
116 s->session=NULL;
117 }
118
119 s->shutdown=(SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
120 s->first_packet=0;
121
122 s->method->ssl_clear(s);
123 }
124
125/* Used to change an SSL_CTXs default SSL method type */
126int SSL_CTX_set_ssl_version(ctx,meth)
127SSL_CTX *ctx;
128SSL_METHOD *meth;
129 {
130 STACK *sk;
131
132 ctx->method=meth;
133
134 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
135 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
136 if ((sk == NULL) || (sk_num(sk) <= 0))
137 {
138 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
139 return(0);
140 }
141 return(1);
142 }
143
144SSL *SSL_new(ctx)
145SSL_CTX *ctx;
146 {
147 SSL *s;
148
149 if (ctx == NULL)
150 {
151 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
152 return(NULL);
153 }
154 if (ctx->method == NULL)
155 {
156 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
157 return(NULL);
158 }
159
160 s=(SSL *)Malloc(sizeof(SSL));
161 if (s == NULL) goto err;
162 memset(s,0,sizeof(SSL));
163
164 if (ctx->default_cert != NULL)
165 {
166 CRYPTO_add(&ctx->default_cert->references,1,
167 CRYPTO_LOCK_SSL_CERT);
168 s->cert=ctx->default_cert;
169 }
170 else
171 s->cert=NULL;
172 s->verify_mode=ctx->default_verify_mode;
173 s->verify_callback=ctx->default_verify_callback;
174 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
175 s->ctx=ctx;
176
177 s->verify_result=X509_V_OK;
178
179 s->method=ctx->method;
180
181 if (!s->method->ssl_new(s))
182 {
183 SSL_CTX_free(ctx);
184 Free(s);
185 goto err;
186 }
187
188 s->quiet_shutdown=ctx->quiet_shutdown;
189 s->references=1;
190 s->options=ctx->options;
191 SSL_clear(s);
192
193 CRYPTO_new_ex_data(ssl_meth,(char *)s,&s->ex_data);
194
195 return(s);
196err:
197 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
198 return(NULL);
199 }
200
201void SSL_free(s)
202SSL *s;
203 {
204 int i;
205
206 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
207#ifdef REF_PRINT
208 REF_PRINT("SSL",s);
209#endif
210 if (i > 0) return;
211#ifdef REF_CHECK
212 if (i < 0)
213 {
214 fprintf(stderr,"SSL_free, bad reference count\n");
215 abort(); /* ok */
216 }
217#endif
218
219 CRYPTO_free_ex_data(ssl_meth,(char *)s,&s->ex_data);
220
221 if (s->bbio != NULL)
222 {
223 /* If the buffering BIO is in place, pop it off */
224 if (s->bbio == s->wbio)
225 {
226 s->wbio=BIO_pop(s->wbio);
227 }
228 BIO_free(s->bbio);
229 s->bbio=NULL;
230 }
231 if (s->rbio != NULL)
232 BIO_free_all(s->rbio);
233 if ((s->wbio != NULL) && (s->wbio != s->rbio))
234 BIO_free_all(s->wbio);
235
236 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
237
238 /* add extra stuff */
239 if (s->cipher_list != NULL) sk_free(s->cipher_list);
240 if (s->cipher_list_by_id != NULL) sk_free(s->cipher_list_by_id);
241
242 /* Make the next call work :-) */
243 if (s->session != NULL)
244 {
245 ssl_clear_bad_session(s);
246 SSL_SESSION_free(s->session);
247 }
248
249 ssl_clear_cipher_ctx(s);
250
251 if (s->cert != NULL) ssl_cert_free(s->cert);
252 /* Free up if allocated */
253
254 if (s->ctx) SSL_CTX_free(s->ctx);
255
256 if (s->client_CA != NULL)
257 sk_pop_free(s->client_CA,X509_NAME_free);
258
259 if (s->method != NULL) s->method->ssl_free(s);
260
261 Free((char *)s);
262 }
263
264void SSL_set_bio(s, rbio,wbio)
265SSL *s;
266BIO *rbio;
267BIO *wbio;
268 {
269 /* If the output buffering BIO is still in place, remove it
270 */
271 if (s->bbio != NULL)
272 {
273 if (s->wbio == s->bbio)
274 {
275 s->wbio=s->wbio->next_bio;
276 s->bbio->next_bio=NULL;
277 }
278 }
279 if ((s->rbio != NULL) && (s->rbio != rbio))
280 BIO_free_all(s->rbio);
281 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
282 BIO_free_all(s->wbio);
283 s->rbio=rbio;
284 s->wbio=wbio;
285 }
286
287BIO *SSL_get_rbio(s)
288SSL *s;
289 { return(s->rbio); }
290
291BIO *SSL_get_wbio(s)
292SSL *s;
293 { return(s->wbio); }
294
295int SSL_get_fd(s)
296SSL *s;
297 {
298 int ret= -1;
299 BIO *b,*r;
300
301 b=SSL_get_rbio(s);
302 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
303 if (r != NULL)
304 BIO_get_fd(r,&ret);
305 return(ret);
306 }
307
308#ifndef NO_SOCK
309int SSL_set_fd(s, fd)
310SSL *s;
311int fd;
312 {
313 int ret=0;
314 BIO *bio=NULL;
315
316 bio=BIO_new(BIO_s_socket());
317
318 if (bio == NULL)
319 {
320 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
321 goto err;
322 }
323 BIO_set_fd(bio,fd,BIO_NOCLOSE);
324 SSL_set_bio(s,bio,bio);
325 ret=1;
326err:
327 return(ret);
328 }
329
330int SSL_set_wfd(s, fd)
331SSL *s;
332int fd;
333 {
334 int ret=0;
335 BIO *bio=NULL;
336
337 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
338 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
339 {
340 bio=BIO_new(BIO_s_socket());
341
342 if (bio == NULL)
343 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
344 BIO_set_fd(bio,fd,BIO_NOCLOSE);
345 SSL_set_bio(s,SSL_get_rbio(s),bio);
346 }
347 else
348 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
349 ret=1;
350err:
351 return(ret);
352 }
353
354int SSL_set_rfd(s, fd)
355SSL *s;
356int fd;
357 {
358 int ret=0;
359 BIO *bio=NULL;
360
361 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
362 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
363 {
364 bio=BIO_new(BIO_s_socket());
365
366 if (bio == NULL)
367 {
368 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
369 goto err;
370 }
371 BIO_set_fd(bio,fd,BIO_NOCLOSE);
372 SSL_set_bio(s,bio,SSL_get_wbio(s));
373 }
374 else
375 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
376 ret=1;
377err:
378 return(ret);
379 }
380#endif
381
382int SSL_get_verify_mode(s)
383SSL *s;
384 {
385 return(s->verify_mode);
386 }
387
388int (*SSL_get_verify_callback(s))()
389SSL *s;
390 {
391 return(s->verify_callback);
392 }
393
394int SSL_CTX_get_verify_mode(ctx)
395SSL_CTX *ctx;
396 {
397 return(ctx->default_verify_mode);
398 }
399
400int (*SSL_CTX_get_verify_callback(ctx))()
401SSL_CTX *ctx;
402 {
403 return(ctx->default_verify_callback);
404 }
405
406void SSL_set_verify(s, mode, callback)
407SSL *s;
408int mode;
409int (*callback)();
410 {
411 s->verify_mode=mode;
412 if (callback != NULL)
413 s->verify_callback=callback;
414 }
415
416void SSL_set_read_ahead(s, yes)
417SSL *s;
418int yes;
419 {
420 s->read_ahead=yes;
421 }
422
423int SSL_get_read_ahead(s)
424SSL *s;
425 {
426 return(s->read_ahead);
427 }
428
429int SSL_pending(s)
430SSL *s;
431 {
432 return(s->method->ssl_pending(s));
433 }
434
435X509 *SSL_get_peer_certificate(s)
436SSL *s;
437 {
438 X509 *r;
439
440 if ((s == NULL) || (s->session == NULL))
441 r=NULL;
442 else
443 r=s->session->peer;
444
445 if (r == NULL) return(r);
446
447 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
448
449 return(r);
450 }
451
452STACK *SSL_get_peer_cert_chain(s)
453SSL *s;
454 {
455 STACK *r;
456
457 if ((s == NULL) || (s->session == NULL) || (s->session->cert == NULL))
458 r=NULL;
459 else
460 r=s->session->cert->cert_chain;
461
462 return(r);
463 }
464
465/* Now in theory, since the calling process own 't' it should be safe to
466 * modify. We need to be able to read f without being hassled */
467void SSL_copy_session_id(t,f)
468SSL *t,*f;
469 {
470 CERT *tmp;
471
472 /* Do we need to to SSL locking? */
473 SSL_set_session(t,SSL_get_session(f));
474
475 /* what if we are setup as SSLv2 but want to talk SSLv3 or
476 * vice-versa */
477 if (t->method != f->method)
478 {
479 t->method->ssl_free(t); /* cleanup current */
480 t->method=f->method; /* change method */
481 t->method->ssl_new(t); /* setup new */
482 }
483
484 tmp=t->cert;
485 if (f->cert != NULL)
486 {
487 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
488 t->cert=f->cert;
489 }
490 else
491 t->cert=NULL;
492 if (tmp != NULL) ssl_cert_free(tmp);
493 }
494
495/* Fix this so it checks all the valid key/cert options */
496int SSL_CTX_check_private_key(ctx)
497SSL_CTX *ctx;
498 {
499 if ( (ctx == NULL) ||
500 (ctx->default_cert == NULL) ||
501 (ctx->default_cert->key->x509 == NULL))
502 {
503 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
504 return(0);
505 }
506 if (ctx->default_cert->key->privatekey == NULL)
507 {
508 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
509 return(0);
510 }
511 return(X509_check_private_key(ctx->default_cert->key->x509, ctx->default_cert->key->privatekey));
512 }
513
514/* Fix this function so that it takes an optional type parameter */
515int SSL_check_private_key(ssl)
516SSL *ssl;
517 {
518 if (ssl == NULL)
519 {
520 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
521 return(0);
522 }
523 if (ssl->cert == NULL)
524 return(SSL_CTX_check_private_key(ssl->ctx));
525 if (ssl->cert->key->x509 == NULL)
526 {
527 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
528 return(0);
529 }
530 if (ssl->cert->key->privatekey == NULL)
531 {
532 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
533 return(0);
534 }
535 return(X509_check_private_key(ssl->cert->key->x509,
536 ssl->cert->key->privatekey));
537 }
538
539int SSL_accept(s)
540SSL *s;
541 {
542 return(s->method->ssl_accept(s));
543 }
544
545int SSL_connect(s)
546SSL *s;
547 {
548 return(s->method->ssl_connect(s));
549 }
550
551long SSL_get_default_timeout(s)
552SSL *s;
553 {
554 return(s->method->get_timeout());
555 }
556
557int SSL_read(s,buf,num)
558SSL *s;
559char *buf;
560int num;
561 {
562 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
563 {
564 s->rwstate=SSL_NOTHING;
565 return(0);
566 }
567 return(s->method->ssl_read(s,buf,num));
568 }
569
570int SSL_peek(s,buf,num)
571SSL *s;
572char *buf;
573int num;
574 {
575 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
576 {
577 return(0);
578 }
579 return(s->method->ssl_peek(s,buf,num));
580 }
581
582int SSL_write(s,buf,num)
583SSL *s;
584char *buf;
585int num;
586 {
587 if (s->shutdown & SSL_SENT_SHUTDOWN)
588 {
589 s->rwstate=SSL_NOTHING;
590 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
591 return(-1);
592 }
593 return(s->method->ssl_write(s,buf,num));
594 }
595
596int SSL_shutdown(s)
597SSL *s;
598 {
599 if ((s != NULL) && !SSL_in_init(s))
600 return(s->method->ssl_shutdown(s));
601 else
602 return(1);
603 }
604
605int SSL_renegotiate(s)
606SSL *s;
607 {
608 s->new_session=1;
609 return(s->method->ssl_renegotiate(s));
610 }
611
612long SSL_ctrl(s,cmd,larg,parg)
613SSL *s;
614int cmd;
615long larg;
616char *parg;
617 {
618 return(s->method->ssl_ctrl(s,cmd,larg,parg));
619 }
620
621long SSL_CTX_ctrl(ctx,cmd,larg,parg)
622SSL_CTX *ctx;
623int cmd;
624long larg;
625char *parg;
626 {
627 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
628 }
629
630int ssl_cipher_id_cmp(a,b)
631SSL_CIPHER *a,*b;
632 {
633 long l;
634
635 l=a->id-b->id;
636 if (l == 0L)
637 return(0);
638 else
639 return((l > 0)?1:-1);
640 }
641
642int ssl_cipher_ptr_id_cmp(ap,bp)
643SSL_CIPHER **ap,**bp;
644 {
645 long l;
646
647 l=(*ap)->id-(*bp)->id;
648 if (l == 0L)
649 return(0);
650 else
651 return((l > 0)?1:-1);
652 }
653
654/* return a STACK of the ciphers available for the SSL and in order of
655 * preference */
656STACK *SSL_get_ciphers(s)
657SSL *s;
658 {
659 if ((s != NULL) && (s->cipher_list != NULL))
660 {
661 return(s->cipher_list);
662 }
663 else if ((s->ctx != NULL) &&
664 (s->ctx->cipher_list != NULL))
665 {
666 return(s->ctx->cipher_list);
667 }
668 return(NULL);
669 }
670
671/* return a STACK of the ciphers available for the SSL and in order of
672 * algorithm id */
673STACK *ssl_get_ciphers_by_id(s)
674SSL *s;
675 {
676 if ((s != NULL) && (s->cipher_list_by_id != NULL))
677 {
678 return(s->cipher_list_by_id);
679 }
680 else if ((s != NULL) && (s->ctx != NULL) &&
681 (s->ctx->cipher_list_by_id != NULL))
682 {
683 return(s->ctx->cipher_list_by_id);
684 }
685 return(NULL);
686 }
687
688/* The old interface to get the same thing as SSL_get_ciphers() */
689char *SSL_get_cipher_list(s,n)
690SSL *s;
691int n;
692 {
693 SSL_CIPHER *c;
694 STACK *sk;
695
696 if (s == NULL) return(NULL);
697 sk=SSL_get_ciphers(s);
698 if ((sk == NULL) || (sk_num(sk) <= n))
699 return(NULL);
700 c=(SSL_CIPHER *)sk_value(sk,n);
701 if (c == NULL) return(NULL);
702 return(c->name);
703 }
704
705/* specify the ciphers to be used by defaut by the SSL_CTX */
706int SSL_CTX_set_cipher_list(ctx,str)
707SSL_CTX *ctx;
708char *str;
709 {
710 STACK *sk;
711
712 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
713 &ctx->cipher_list_by_id,str);
714/* XXXX */
715 return((sk == NULL)?0:1);
716 }
717
718/* specify the ciphers to be used by the SSL */
719int SSL_set_cipher_list(s, str)
720SSL *s;
721char *str;
722 {
723 STACK *sk;
724
725 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
726 &s->cipher_list_by_id,str);
727/* XXXX */
728 return((sk == NULL)?0:1);
729 }
730
731/* works well for SSLv2, not so good for SSLv3 */
732char *SSL_get_shared_ciphers(s,buf,len)
733SSL *s;
734char *buf;
735int len;
736 {
737 char *p,*cp;
738 STACK *sk;
739 SSL_CIPHER *c;
740 int i;
741
742 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
743 (len < 2))
744 return(NULL);
745
746 p=buf;
747 sk=s->session->ciphers;
748 for (i=0; i<sk_num(sk); i++)
749 {
750 /* Decrement for either the ':' or a '\0' */
751 len--;
752 c=(SSL_CIPHER *)sk_value(sk,i);
753 for (cp=c->name; *cp; )
754 {
755 if (len-- == 0)
756 {
757 *p='\0';
758 return(buf);
759 }
760 else
761 *(p++)= *(cp++);
762 }
763 *(p++)=':';
764 }
765 p[-1]='\0';
766 return(buf);
767 }
768
769int ssl_cipher_list_to_bytes(s,sk,p)
770SSL *s;
771STACK *sk;
772unsigned char *p;
773 {
774 int i,j=0;
775 SSL_CIPHER *c;
776 unsigned char *q;
777
778 if (sk == NULL) return(0);
779 q=p;
780
781 for (i=0; i<sk_num(sk); i++)
782 {
783 c=(SSL_CIPHER *)sk_value(sk,i);
784 j=ssl_put_cipher_by_char(s,c,p);
785 p+=j;
786 }
787 return(p-q);
788 }
789
790STACK *ssl_bytes_to_cipher_list(s,p,num,skp)
791SSL *s;
792unsigned char *p;
793int num;
794STACK **skp;
795 {
796 SSL_CIPHER *c;
797 STACK *sk;
798 int i,n;
799
800 n=ssl_put_cipher_by_char(s,NULL,NULL);
801 if ((num%n) != 0)
802 {
803 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
804 return(NULL);
805 }
806 if ((skp == NULL) || (*skp == NULL))
807 sk=sk_new(NULL); /* change perhaps later */
808 else
809 {
810 sk= *skp;
811 sk_zero(sk);
812 }
813
814 for (i=0; i<num; i+=n)
815 {
816 c=ssl_get_cipher_by_char(s,p);
817 p+=n;
818 if (c != NULL)
819 {
820 if (!sk_push(sk,(char *)c))
821 {
822 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
823 goto err;
824 }
825 }
826 }
827
828 if (skp != NULL)
829 *skp=sk;
830 return(sk);
831err:
832 if ((skp == NULL) || (*skp == NULL))
833 sk_free(sk);
834 return(NULL);
835 }
836
837unsigned long SSL_SESSION_hash(a)
838SSL_SESSION *a;
839 {
840 unsigned long l;
841
842 l= (a->session_id[0] )|(a->session_id[1]<< 8L)|
843 (a->session_id[2]<<16L)|(a->session_id[3]<<24L);
844 return(l);
845 }
846
847int SSL_SESSION_cmp(a, b)
848SSL_SESSION *a;
849SSL_SESSION *b;
850 {
851 if (a->ssl_version != b->ssl_version)
852 return(1);
853 if (a->session_id_length != b->session_id_length)
854 return(1);
855 return(memcmp(a->session_id,b->session_id,a->session_id_length));
856 }
857
858SSL_CTX *SSL_CTX_new(meth)
859SSL_METHOD *meth;
860 {
861 SSL_CTX *ret;
862
863 if (meth == NULL)
864 {
865 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
866 return(NULL);
867 }
868 ret=(SSL_CTX *)Malloc(sizeof(SSL_CTX));
869 if (ret == NULL)
870 goto err;
871
872 memset(ret,0,sizeof(SSL_CTX));
873
874 ret->method=meth;
875
876 ret->cert_store=NULL;
877 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
878 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
879 ret->session_cache_head=NULL;
880 ret->session_cache_tail=NULL;
881
882 /* We take the system default */
883 ret->session_timeout=meth->get_timeout();
884
885 ret->new_session_cb=NULL;
886 ret->remove_session_cb=NULL;
887 ret->get_session_cb=NULL;
888
889 ret->sess_connect=0;
890 ret->sess_connect_good=0;
891 ret->sess_accept=0;
892 ret->sess_accept_renegotiate=0;
893 ret->sess_connect_renegotiate=0;
894 ret->sess_accept_good=0;
895 ret->sess_miss=0;
896 ret->sess_timeout=0;
897 ret->sess_cache_full=0;
898 ret->sess_hit=0;
899 ret->sess_cb_hit=0;
900
901 ret->references=1;
902 ret->quiet_shutdown=0;
903
904/* ret->cipher=NULL;*/
905/* ret->s2->challenge=NULL;
906 ret->master_key=NULL;
907 ret->key_arg=NULL;
908 ret->s2->conn_id=NULL; */
909
910 ret->info_callback=NULL;
911
912 ret->app_verify_callback=NULL;
913 ret->app_verify_arg=NULL;
914
915 ret->default_read_ahead=0;
916 ret->default_verify_mode=SSL_VERIFY_NONE;
917 ret->default_verify_callback=NULL;
918 if ((ret->default_cert=ssl_cert_new()) == NULL)
919 goto err;
920
921 ret->default_passwd_callback=NULL;
922 ret->client_cert_cb=NULL;
923
924 ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp);
925 if (ret->sessions == NULL) goto err;
926 ret->cert_store=X509_STORE_new();
927 if (ret->cert_store == NULL) goto err;
928
929 ssl_create_cipher_list(ret->method,
930 &ret->cipher_list,&ret->cipher_list_by_id,
931 SSL_DEFAULT_CIPHER_LIST);
932 if ((ret->cipher_list == NULL) || (sk_num(ret->cipher_list) <= 0))
933 {
934 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
935 goto err2;
936 }
937
938 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
939 {
940 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
941 goto err2;
942 }
943 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
944 {
945 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
946 goto err2;
947 }
948 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
949 {
950 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
951 goto err2;
952 }
953
954 if ((ret->client_CA=sk_new_null()) == NULL)
955 goto err;
956
957 CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data);
958
959 return(ret);
960err:
961 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
962err2:
963 if (ret != NULL) SSL_CTX_free(ret);
964 return(NULL);
965 }
966
967void SSL_CTX_free(a)
968SSL_CTX *a;
969 {
970 int i;
971
972 if (a == NULL) return;
973
974 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
975#ifdef REF_PRINT
976 REF_PRINT("SSL_CTX",a);
977#endif
978 if (i > 0) return;
979#ifdef REF_CHECK
980 if (i < 0)
981 {
982 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
983 abort(); /* ok */
984 }
985#endif
986 CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data);
987
988 if (a->sessions != NULL)
989 {
990 SSL_CTX_flush_sessions(a,0);
991 lh_free(a->sessions);
992 }
993 if (a->cert_store != NULL)
994 X509_STORE_free(a->cert_store);
995 if (a->cipher_list != NULL)
996 sk_free(a->cipher_list);
997 if (a->cipher_list_by_id != NULL)
998 sk_free(a->cipher_list_by_id);
999 if (a->default_cert != NULL)
1000 ssl_cert_free(a->default_cert);
1001 if (a->client_CA != NULL)
1002 sk_pop_free(a->client_CA,X509_NAME_free);
1003 Free((char *)a);
1004 }
1005
1006void SSL_CTX_set_default_passwd_cb(ctx,cb)
1007SSL_CTX *ctx;
1008int (*cb)();
1009 {
1010 ctx->default_passwd_callback=cb;
1011 }
1012
1013void SSL_CTX_set_cert_verify_cb(ctx,cb,arg)
1014SSL_CTX *ctx;
1015int (*cb)();
1016char *arg;
1017 {
1018 ctx->app_verify_callback=cb;
1019 ctx->app_verify_arg=arg;
1020 }
1021
1022void SSL_CTX_set_verify(ctx,mode,cb)
1023SSL_CTX *ctx;
1024int mode;
1025int (*cb)();
1026 {
1027 ctx->default_verify_mode=mode;
1028 ctx->default_verify_callback=cb;
1029 /* This needs cleaning up EAY EAY EAY */
1030 X509_STORE_set_verify_cb_func(ctx->cert_store,cb);
1031 }
1032
1033void ssl_set_cert_masks(c)
1034CERT *c;
1035 {
1036 CERT_PKEY *cpk;
1037 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1038 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1039 int rsa_tmp_export,dh_tmp_export;
1040 unsigned long mask,emask;
1041
1042 if ((c == NULL) || (c->valid)) return;
1043
1044#ifndef NO_RSA
1045 rsa_tmp=((c->rsa_tmp != NULL) || (c->rsa_tmp_cb != NULL))?1:0;
1046 rsa_tmp_export=((c->rsa_tmp_cb != NULL) ||
1047 (rsa_tmp && (RSA_size(c->rsa_tmp)*8 <= 512)))?1:0;
1048#else
1049 rsa_tmp=rsa_tmp_export=0;
1050#endif
1051#ifndef NO_DH
1052 dh_tmp=((c->dh_tmp != NULL) || (c->dh_tmp_cb != NULL))?1:0;
1053 dh_tmp_export=((c->dh_tmp_cb != NULL) ||
1054 (dh_tmp && (DH_size(c->dh_tmp)*8 <= 512)))?1:0;
1055#else
1056 dh_tmp=dh_tmp_export=0;
1057#endif
1058
1059 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1060 rsa_enc= ((cpk->x509 != NULL) && (cpk->privatekey != NULL))?1:0;
1061 rsa_enc_export=(rsa_enc && (EVP_PKEY_size(cpk->privatekey)*8 <= 512))?1:0;
1062 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1063 rsa_sign=((cpk->x509 != NULL) && (cpk->privatekey != NULL))?1:0;
1064 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1065 dsa_sign=((cpk->x509 != NULL) && (cpk->privatekey != NULL))?1:0;
1066 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1067 dh_rsa= ((cpk->x509 != NULL) && (cpk->privatekey != NULL))?1:0;
1068 dh_rsa_export=(dh_rsa && (EVP_PKEY_size(cpk->privatekey)*8 <= 512))?1:0;
1069 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1070/* FIX THIS EAY EAY EAY */
1071 dh_dsa= ((cpk->x509 != NULL) && (cpk->privatekey != NULL))?1:0;
1072 dh_dsa_export=(dh_dsa && (EVP_PKEY_size(cpk->privatekey)*8 <= 512))?1:0;
1073
1074 mask=0;
1075 emask=0;
1076
1077#ifdef CIPHER_DEBUG
1078 printf("rt=%d dht=%d re=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1079 rsa_tmp,dh_tmp,
1080 rsa_enc,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1081#endif
1082
1083 if (rsa_enc || (rsa_tmp && rsa_sign))
1084 mask|=SSL_kRSA;
1085 if (rsa_enc_export || (rsa_tmp_export && rsa_sign))
1086 emask|=SSL_kRSA;
1087
1088#if 0
1089 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1090 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1091 (rsa_enc || rsa_sign || dsa_sign))
1092 mask|=SSL_kEDH;
1093 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1094 (rsa_enc || rsa_sign || dsa_sign))
1095 emask|=SSL_kEDH;
1096#endif
1097
1098 if (dh_tmp_export)
1099 emask|=SSL_kEDH;
1100
1101 if (dh_tmp)
1102 mask|=SSL_kEDH;
1103
1104 if (dh_rsa) mask|=SSL_kDHr;
1105 if (dh_rsa_export) emask|=SSL_kDHr;
1106
1107 if (dh_dsa) mask|=SSL_kDHd;
1108 if (dh_dsa_export) emask|=SSL_kDHd;
1109
1110 if (rsa_enc || rsa_sign)
1111 {
1112 mask|=SSL_aRSA;
1113 emask|=SSL_aRSA;
1114 }
1115
1116 if (dsa_sign)
1117 {
1118 mask|=SSL_aDSS;
1119 emask|=SSL_aDSS;
1120 }
1121
1122#ifdef SSL_ALLOW_ADH
1123 mask|=SSL_aNULL;
1124 emask|=SSL_aNULL;
1125#endif
1126
1127 c->mask=mask;
1128 c->export_mask=emask;
1129 c->valid=1;
1130 }
1131
1132/* THIS NEEDS CLEANING UP */
1133X509 *ssl_get_server_send_cert(s)
1134SSL *s;
1135 {
1136 unsigned long alg,mask,kalg;
1137 CERT *c;
1138 int i,export;
1139
1140 c=s->cert;
1141 ssl_set_cert_masks(c);
1142 alg=s->s3->tmp.new_cipher->algorithms;
1143 export=(alg & SSL_EXPORT)?1:0;
1144 mask=(export)?c->export_mask:c->mask;
1145 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1146
1147 if (kalg & SSL_kDHr)
1148 i=SSL_PKEY_DH_RSA;
1149 else if (kalg & SSL_kDHd)
1150 i=SSL_PKEY_DH_DSA;
1151 else if (kalg & SSL_aDSS)
1152 i=SSL_PKEY_DSA_SIGN;
1153 else if (kalg & SSL_aRSA)
1154 {
1155 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1156 i=SSL_PKEY_RSA_SIGN;
1157 else
1158 i=SSL_PKEY_RSA_ENC;
1159 }
1160 else /* if (kalg & SSL_aNULL) */
1161 {
1162 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR);
1163 return(NULL);
1164 }
1165 if (c->pkeys[i].x509 == NULL) return(NULL);
1166 return(c->pkeys[i].x509);
1167 }
1168
1169EVP_PKEY *ssl_get_sign_pkey(s,cipher)
1170SSL *s;
1171SSL_CIPHER *cipher;
1172 {
1173 unsigned long alg;
1174 CERT *c;
1175
1176 alg=cipher->algorithms;
1177 c=s->cert;
1178
1179 if ((alg & SSL_aDSS) &&
1180 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1181 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1182 else if (alg & SSL_aRSA)
1183 {
1184 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1185 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1186 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1187 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1188 else
1189 return(NULL);
1190 }
1191 else /* if (alg & SSL_aNULL) */
1192 {
1193 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR);
1194 return(NULL);
1195 }
1196 }
1197
1198void ssl_update_cache(s,mode)
1199SSL *s;
1200int mode;
1201 {
1202 int i;
1203
1204 /* If the session_id_length is 0, we are not supposed to cache it,
1205 * and it would be rather hard to do anyway :-) */
1206 if (s->session->session_id_length == 0) return;
1207
1208 if ((s->ctx->session_cache_mode & mode)
1209 && (!s->hit)
1210 && SSL_CTX_add_session(s->ctx,s->session)
1211 && (s->ctx->new_session_cb != NULL))
1212 {
1213 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1214 if (!s->ctx->new_session_cb(s,s->session))
1215 SSL_SESSION_free(s->session);
1216 }
1217
1218 /* auto flush every 255 connections */
1219 i=s->ctx->session_cache_mode;
1220 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1221 ((i & mode) == mode))
1222 {
1223 if ( (((mode & SSL_SESS_CACHE_CLIENT)
1224 ?s->ctx->sess_connect_good
1225 :s->ctx->sess_accept_good) & 0xff) == 0xff)
1226 {
1227 SSL_CTX_flush_sessions(s->ctx,time(NULL));
1228 }
1229 }
1230 }
1231
1232SSL_METHOD *SSL_get_ssl_method(s)
1233SSL *s;
1234 {
1235 return(s->method);
1236 }
1237
1238int SSL_set_ssl_method(s,meth)
1239SSL *s;
1240SSL_METHOD *meth;
1241 {
1242 int conn= -1;
1243 int ret=1;
1244
1245 if (s->method != meth)
1246 {
1247 if (s->handshake_func != NULL)
1248 conn=(s->handshake_func == s->method->ssl_connect);
1249
1250 if (s->method->version == meth->version)
1251 s->method=meth;
1252 else
1253 {
1254 s->method->ssl_free(s);
1255 s->method=meth;
1256 ret=s->method->ssl_new(s);
1257 }
1258
1259 if (conn == 1)
1260 s->handshake_func=meth->ssl_connect;
1261 else if (conn == 0)
1262 s->handshake_func=meth->ssl_accept;
1263 }
1264 return(ret);
1265 }
1266
1267int SSL_get_error(s,i)
1268SSL *s;
1269int i;
1270 {
1271 int reason;
1272 BIO *bio;
1273
1274 if (i > 0) return(SSL_ERROR_NONE);
1275
1276 if (ERR_peek_error() != 0)
1277 return(SSL_ERROR_SSL);
1278
1279 if ((i < 0) && SSL_want_read(s))
1280 {
1281 bio=SSL_get_rbio(s);
1282 if (BIO_should_read(bio))
1283 return(SSL_ERROR_WANT_READ);
1284 else if (BIO_should_write(bio))
1285 return(SSL_ERROR_WANT_WRITE);
1286 else if (BIO_should_io_special(bio))
1287 {
1288 reason=BIO_get_retry_reason(bio);
1289 if (reason == BIO_RR_CONNECT)
1290 return(SSL_ERROR_WANT_CONNECT);
1291 else
1292 return(SSL_ERROR_SYSCALL); /* unknown */
1293 }
1294 }
1295
1296 if ((i < 0) && SSL_want_write(s))
1297 {
1298 bio=SSL_get_wbio(s);
1299 if (BIO_should_write(bio))
1300 return(SSL_ERROR_WANT_WRITE);
1301 else if (BIO_should_read(bio))
1302 return(SSL_ERROR_WANT_READ);
1303 else if (BIO_should_io_special(bio))
1304 {
1305 reason=BIO_get_retry_reason(bio);
1306 if (reason == BIO_RR_CONNECT)
1307 return(SSL_ERROR_WANT_CONNECT);
1308 else
1309 return(SSL_ERROR_SYSCALL);
1310 }
1311 }
1312 if ((i < 0) && SSL_want_x509_lookup(s))
1313 {
1314 return(SSL_ERROR_WANT_X509_LOOKUP);
1315 }
1316
1317 if (i == 0)
1318 {
1319 if (s->version == SSL2_VERSION)
1320 {
1321 /* assume it is the socket being closed */
1322 return(SSL_ERROR_ZERO_RETURN);
1323 }
1324 else
1325 {
1326 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1327 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1328 return(SSL_ERROR_ZERO_RETURN);
1329 }
1330 }
1331 return(SSL_ERROR_SYSCALL);
1332 }
1333
1334int SSL_do_handshake(s)
1335SSL *s;
1336 {
1337 int ret=1;
1338
1339 if (s->handshake_func == NULL)
1340 {
1341 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1342 return(-1);
1343 }
1344 if (s->s3->renegotiate) ssl3_renegotiate_check(s);
1345 if (SSL_in_init(s) || SSL_in_before(s))
1346 {
1347 ret=s->handshake_func(s);
1348 }
1349 return(ret);
1350 }
1351
1352/* For the next 2 functions, SSL_clear() sets shutdown and so
1353 * one of these calls will reset it */
1354void SSL_set_accept_state(s)
1355SSL *s;
1356 {
1357 s->shutdown=0;
1358 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1359 s->handshake_func=s->method->ssl_accept;
1360 /* clear the current cipher */
1361 ssl_clear_cipher_ctx(s);
1362 }
1363
1364void SSL_set_connect_state(s)
1365SSL *s;
1366 {
1367 s->shutdown=0;
1368 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1369 s->handshake_func=s->method->ssl_connect;
1370 /* clear the current cipher */
1371 ssl_clear_cipher_ctx(s);
1372 }
1373
1374int ssl_undefined_function(s)
1375SSL *s;
1376 {
1377 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1378 return(0);
1379 }
1380
1381SSL_METHOD *ssl_bad_method(ver)
1382int ver;
1383 {
1384 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1385 return(NULL);
1386 }
1387
1388char *SSL_get_version(s)
1389SSL *s;
1390 {
1391 if (s->version == TLS1_VERSION)
1392 return("TLSv1");
1393 else if (s->version == SSL3_VERSION)
1394 return("SSLv3");
1395 else if (s->version == SSL2_VERSION)
1396 return("SSLv2");
1397 else
1398 return("unknown");
1399 }
1400
1401SSL *SSL_dup(s)
1402SSL *s;
1403 {
1404 STACK *sk;
1405 X509_NAME *xn;
1406 SSL *ret;
1407 int i;
1408
1409 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL) return(NULL);
1410
1411 /* This copies version, session-id, SSL_METHOD and 'cert' */
1412 SSL_copy_session_id(ret,s);
1413
1414 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1415 SSL_set_verify(ret,SSL_get_verify_mode(s),
1416 SSL_get_verify_callback(s));
1417
1418 SSL_set_info_callback(ret,SSL_get_info_callback(s));
1419
1420 ret->debug=s->debug;
1421 ret->options=s->options;
1422
1423 /* copy app data, a little dangerous perhaps */
1424 if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data))
1425 goto err;
1426
1427 /* setup rbio, and wbio */
1428 if (s->rbio != NULL)
1429 {
1430 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1431 goto err;
1432 }
1433 if (s->wbio != NULL)
1434 {
1435 if (s->wbio != s->rbio)
1436 {
1437 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1438 goto err;
1439 }
1440 else
1441 ret->wbio=ret->rbio;
1442 }
1443
1444 /* dup the cipher_list and cipher_list_by_id stacks */
1445 if (s->cipher_list != NULL)
1446 {
1447 if ((ret->cipher_list=sk_dup(s->cipher_list)) == NULL)
1448 goto err;
1449 }
1450 if (s->cipher_list_by_id != NULL)
1451 if ((ret->cipher_list_by_id=sk_dup(s->cipher_list_by_id))
1452 == NULL)
1453 goto err;
1454
1455 /* Dup the client_CA list */
1456 if (s->client_CA != NULL)
1457 {
1458 if ((sk=sk_dup(s->client_CA)) == NULL) goto err;
1459 ret->client_CA=sk;
1460 for (i=0; i<sk_num(sk); i++)
1461 {
1462 xn=(X509_NAME *)sk_value(sk,i);
1463 if ((sk_value(sk,i)=(char *)X509_NAME_dup(xn)) == NULL)
1464 {
1465 X509_NAME_free(xn);
1466 goto err;
1467 }
1468 }
1469 }
1470
1471 ret->shutdown=s->shutdown;
1472 ret->state=s->state;
1473 ret->handshake_func=s->handshake_func;
1474
1475 if (0)
1476 {
1477err:
1478 if (ret != NULL) SSL_free(ret);
1479 ret=NULL;
1480 }
1481 return(ret);
1482 }
1483
1484void ssl_clear_cipher_ctx(s)
1485SSL *s;
1486 {
1487 if (s->enc_read_ctx != NULL)
1488 {
1489 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
1490 Free(s->enc_read_ctx);
1491 s->enc_read_ctx=NULL;
1492 }
1493 if (s->enc_write_ctx != NULL)
1494 {
1495 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
1496 Free(s->enc_write_ctx);
1497 s->enc_write_ctx=NULL;
1498 }
1499 }
1500
1501/* Fix this function so that it takes an optional type parameter */
1502X509 *SSL_get_certificate(s)
1503SSL *s;
1504 {
1505 if (s->cert != NULL)
1506 return(s->cert->key->x509);
1507 else
1508 return(NULL);
1509 }
1510
1511/* Fix this function so that it takes an optional type parameter */
1512EVP_PKEY *SSL_get_privatekey(s)
1513SSL *s;
1514 {
1515 if (s->cert != NULL)
1516 return(s->cert->key->privatekey);
1517 else
1518 return(NULL);
1519 }
1520
1521SSL_CIPHER *SSL_get_current_cipher(s)
1522SSL *s;
1523 {
1524 if ((s->session != NULL) && (s->session->cipher != NULL))
1525 return(s->session->cipher);
1526 return(NULL);
1527 }
1528
1529int ssl_init_wbio_buffer(s,push)
1530SSL *s;
1531int push;
1532 {
1533 BIO *bbio;
1534
1535 if (s->bbio == NULL)
1536 {
1537 bbio=BIO_new(BIO_f_buffer());
1538 if (bbio == NULL) return(0);
1539 s->bbio=bbio;
1540 }
1541 else
1542 {
1543 bbio=s->bbio;
1544 if (s->bbio == s->wbio)
1545 s->wbio=BIO_pop(s->wbio);
1546 }
1547 BIO_reset(bbio);
1548/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
1549 if (!BIO_set_read_buffer_size(bbio,1))
1550 {
1551 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
1552 return(0);
1553 }
1554 if (push)
1555 {
1556 if (s->wbio != bbio)
1557 s->wbio=BIO_push(bbio,s->wbio);
1558 }
1559 else
1560 {
1561 if (s->wbio == bbio)
1562 s->wbio=BIO_pop(bbio);
1563 }
1564 return(1);
1565 }
1566
1567void SSL_CTX_set_quiet_shutdown(ctx,mode)
1568SSL_CTX *ctx;
1569int mode;
1570 {
1571 ctx->quiet_shutdown=mode;
1572 }
1573
1574int SSL_CTX_get_quiet_shutdown(ctx)
1575SSL_CTX *ctx;
1576 {
1577 return(ctx->quiet_shutdown);
1578 }
1579
1580void SSL_set_quiet_shutdown(s,mode)
1581SSL *s;
1582int mode;
1583 {
1584 s->quiet_shutdown=mode;
1585 }
1586
1587int SSL_get_quiet_shutdown(s)
1588SSL *s;
1589 {
1590 return(s->quiet_shutdown);
1591 }
1592
1593void SSL_set_shutdown(s,mode)
1594SSL *s;
1595int mode;
1596 {
1597 s->shutdown=mode;
1598 }
1599
1600int SSL_get_shutdown(s)
1601SSL *s;
1602 {
1603 return(s->shutdown);
1604 }
1605
1606int SSL_version(s)
1607SSL *s;
1608 {
1609 return(s->version);
1610 }
1611
1612SSL_CTX *SSL_get_SSL_CTX(ssl)
1613SSL *ssl;
1614 {
1615 return(ssl->ctx);
1616 }
1617
1618int SSL_CTX_set_default_verify_paths(ctx)
1619SSL_CTX *ctx;
1620 {
1621 return(X509_STORE_set_default_paths(ctx->cert_store));
1622 }
1623
1624int SSL_CTX_load_verify_locations(ctx,CAfile,CApath)
1625SSL_CTX *ctx;
1626char *CAfile;
1627char *CApath;
1628 {
1629 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
1630 }
1631
1632void SSL_set_info_callback(ssl,cb)
1633SSL *ssl;
1634void (*cb)();
1635 {
1636 ssl->info_callback=cb;
1637 }
1638
1639void (*SSL_get_info_callback(ssl))()
1640SSL *ssl;
1641 {
1642 return(ssl->info_callback);
1643 }
1644
1645int SSL_state(ssl)
1646SSL *ssl;
1647 {
1648 return(ssl->state);
1649 }
1650
1651void SSL_set_verify_result(ssl,arg)
1652SSL *ssl;
1653long arg;
1654 {
1655 ssl->verify_result=arg;
1656 }
1657
1658long SSL_get_verify_result(ssl)
1659SSL *ssl;
1660 {
1661 return(ssl->verify_result);
1662 }
1663
1664int SSL_get_ex_new_index(argl,argp,new_func,dup_func,free_func)
1665long argl;
1666char *argp;
1667int (*new_func)();
1668int (*dup_func)();
1669void (*free_func)();
1670 {
1671 ssl_meth_num++;
1672 return(CRYPTO_get_ex_new_index(ssl_meth_num-1,
1673 &ssl_meth,argl,argp,new_func,dup_func,free_func));
1674 }
1675
1676int SSL_set_ex_data(s,idx,arg)
1677SSL *s;
1678int idx;
1679char *arg;
1680 {
1681 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1682 }
1683
1684char *SSL_get_ex_data(s,idx)
1685SSL *s;
1686int idx;
1687 {
1688 return(CRYPTO_get_ex_data(&s->ex_data,idx));
1689 }
1690
1691int SSL_CTX_get_ex_new_index(argl,argp,new_func,dup_func,free_func)
1692long argl;
1693char *argp;
1694int (*new_func)();
1695int (*dup_func)();
1696void (*free_func)();
1697 {
1698 ssl_ctx_meth_num++;
1699 return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1,
1700 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func));
1701 }
1702
1703int SSL_CTX_set_ex_data(s,idx,arg)
1704SSL_CTX *s;
1705int idx;
1706char *arg;
1707 {
1708 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1709 }
1710
1711char *SSL_CTX_get_ex_data(s,idx)
1712SSL_CTX *s;
1713int idx;
1714 {
1715 return(CRYPTO_get_ex_data(&s->ex_data,idx));
1716 }
1717
1718#if defined(_WINDLL) && defined(WIN16)
1719#include "../crypto/bio/bss_file.c"
1720#endif
1721
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