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-rw-r--r--src/lib/libssl/ssl_lib.c1947
1 files changed, 0 insertions, 1947 deletions
diff --git a/src/lib/libssl/ssl_lib.c b/src/lib/libssl/ssl_lib.c
deleted file mode 100644
index e192fc4cac..0000000000
--- a/src/lib/libssl/ssl_lib.c
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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 "ssl_locl.h"
65
66char *SSL_version_str=OPENSSL_VERSION_TEXT;
67
68static STACK *ssl_meth=NULL;
69static STACK *ssl_ctx_meth=NULL;
70static int ssl_meth_num=0;
71static int ssl_ctx_meth_num=0;
72
73OPENSSL_GLOBAL SSL3_ENC_METHOD ssl3_undef_enc_method={
74 ssl_undefined_function,
75 ssl_undefined_function,
76 ssl_undefined_function,
77 ssl_undefined_function,
78 ssl_undefined_function,
79 ssl_undefined_function,
80 };
81
82int SSL_clear(SSL *s)
83 {
84 int state;
85
86 if (s->method == NULL)
87 {
88 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
89 return(0);
90 }
91
92 s->error=0;
93 s->hit=0;
94 s->shutdown=0;
95
96#if 0
97 /* This is set if we are doing dynamic renegotiation so keep
98 * the old cipher. It is sort of a SSL_clear_lite :-) */
99 if (s->new_session) return(1);
100#endif
101
102 state=s->state; /* Keep to check if we throw away the session-id */
103 s->type=0;
104
105 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
106
107 s->version=s->method->version;
108 s->client_version=s->version;
109 s->rwstate=SSL_NOTHING;
110 s->rstate=SSL_ST_READ_HEADER;
111 s->read_ahead=s->ctx->read_ahead;
112
113 if (s->init_buf != NULL)
114 {
115 BUF_MEM_free(s->init_buf);
116 s->init_buf=NULL;
117 }
118
119 ssl_clear_cipher_ctx(s);
120
121 if (ssl_clear_bad_session(s))
122 {
123 SSL_SESSION_free(s->session);
124 s->session=NULL;
125 }
126
127 s->first_packet=0;
128
129#if 1
130 /* Check to see if we were changed into a different method, if
131 * so, revert back if we are not doing session-id reuse. */
132 if ((s->session == NULL) && (s->method != s->ctx->method))
133 {
134 s->method->ssl_free(s);
135 s->method=s->ctx->method;
136 if (!s->method->ssl_new(s))
137 return(0);
138 }
139 else
140#endif
141 s->method->ssl_clear(s);
142 return(1);
143 }
144
145/** Used to change an SSL_CTXs default SSL method type */
146int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth)
147 {
148 STACK_OF(SSL_CIPHER) *sk;
149
150 ctx->method=meth;
151
152 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
153 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
154 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
155 {
156 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
157 return(0);
158 }
159 return(1);
160 }
161
162SSL *SSL_new(SSL_CTX *ctx)
163 {
164 SSL *s;
165
166 if (ctx == NULL)
167 {
168 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
169 return(NULL);
170 }
171 if (ctx->method == NULL)
172 {
173 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
174 return(NULL);
175 }
176
177 s=(SSL *)Malloc(sizeof(SSL));
178 if (s == NULL) goto err;
179 memset(s,0,sizeof(SSL));
180
181 if (ctx->cert != NULL)
182 {
183 /* Earlier library versions used to copy the pointer to
184 * the CERT, not its contents; only when setting new
185 * parameters for the per-SSL copy, ssl_cert_new would be
186 * called (and the direct reference to the per-SSL_CTX
187 * settings would be lost, but those still were indirectly
188 * accessed for various purposes, and for that reason they
189 * used to be known as s->ctx->default_cert).
190 * Now we don't look at the SSL_CTX's CERT after having
191 * duplicated it once. */
192
193 s->cert = ssl_cert_dup(ctx->cert);
194 if (s->cert == NULL)
195 goto err;
196 }
197 else
198 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
199 s->sid_ctx_length=ctx->sid_ctx_length;
200 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
201 s->verify_mode=ctx->verify_mode;
202 s->verify_depth=ctx->verify_depth;
203 s->verify_callback=ctx->default_verify_callback;
204 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
205 s->ctx=ctx;
206
207 s->verify_result=X509_V_OK;
208
209 s->method=ctx->method;
210
211 if (!s->method->ssl_new(s))
212 goto err;
213
214 s->quiet_shutdown=ctx->quiet_shutdown;
215 s->references=1;
216 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
217 s->options=ctx->options;
218 s->mode=ctx->mode;
219 SSL_clear(s);
220
221 CRYPTO_new_ex_data(ssl_meth,(char *)s,&s->ex_data);
222
223 return(s);
224err:
225 if (s != NULL)
226 {
227 if (s->cert != NULL)
228 ssl_cert_free(s->cert);
229 if (s->ctx != NULL)
230 SSL_CTX_free(s->ctx); /* decrement reference count */
231 Free(s);
232 }
233 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
234 return(NULL);
235 }
236
237int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
238 unsigned int sid_ctx_len)
239 {
240 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
241 {
242 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
243 return 0;
244 }
245 ctx->sid_ctx_length=sid_ctx_len;
246 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
247
248 return 1;
249 }
250
251int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
252 unsigned int sid_ctx_len)
253 {
254 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
255 {
256 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
257 return 0;
258 }
259 ssl->sid_ctx_length=sid_ctx_len;
260 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
261
262 return 1;
263 }
264
265void SSL_free(SSL *s)
266 {
267 int i;
268
269 if(s == NULL)
270 return;
271
272 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
273#ifdef REF_PRINT
274 REF_PRINT("SSL",s);
275#endif
276 if (i > 0) return;
277#ifdef REF_CHECK
278 if (i < 0)
279 {
280 fprintf(stderr,"SSL_free, bad reference count\n");
281 abort(); /* ok */
282 }
283#endif
284
285 CRYPTO_free_ex_data(ssl_meth,(char *)s,&s->ex_data);
286
287 if (s->bbio != NULL)
288 {
289 /* If the buffering BIO is in place, pop it off */
290 if (s->bbio == s->wbio)
291 {
292 s->wbio=BIO_pop(s->wbio);
293 }
294 BIO_free(s->bbio);
295 s->bbio=NULL;
296 }
297 if (s->rbio != NULL)
298 BIO_free_all(s->rbio);
299 if ((s->wbio != NULL) && (s->wbio != s->rbio))
300 BIO_free_all(s->wbio);
301
302 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
303
304 /* add extra stuff */
305 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
306 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
307
308 /* Make the next call work :-) */
309 if (s->session != NULL)
310 {
311 ssl_clear_bad_session(s);
312 SSL_SESSION_free(s->session);
313 }
314
315 ssl_clear_cipher_ctx(s);
316
317 if (s->cert != NULL) ssl_cert_free(s->cert);
318 /* Free up if allocated */
319
320 if (s->ctx) SSL_CTX_free(s->ctx);
321
322 if (s->client_CA != NULL)
323 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
324
325 if (s->method != NULL) s->method->ssl_free(s);
326
327 Free((char *)s);
328 }
329
330void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
331 {
332 /* If the output buffering BIO is still in place, remove it
333 */
334 if (s->bbio != NULL)
335 {
336 if (s->wbio == s->bbio)
337 {
338 s->wbio=s->wbio->next_bio;
339 s->bbio->next_bio=NULL;
340 }
341 }
342 if ((s->rbio != NULL) && (s->rbio != rbio))
343 BIO_free_all(s->rbio);
344 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
345 BIO_free_all(s->wbio);
346 s->rbio=rbio;
347 s->wbio=wbio;
348 }
349
350BIO *SSL_get_rbio(SSL *s)
351 { return(s->rbio); }
352
353BIO *SSL_get_wbio(SSL *s)
354 { return(s->wbio); }
355
356int SSL_get_fd(SSL *s)
357 {
358 int ret= -1;
359 BIO *b,*r;
360
361 b=SSL_get_rbio(s);
362 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
363 if (r != NULL)
364 BIO_get_fd(r,&ret);
365 return(ret);
366 }
367
368#ifndef NO_SOCK
369int SSL_set_fd(SSL *s,int fd)
370 {
371 int ret=0;
372 BIO *bio=NULL;
373
374 bio=BIO_new(BIO_s_socket());
375
376 if (bio == NULL)
377 {
378 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
379 goto err;
380 }
381 BIO_set_fd(bio,fd,BIO_NOCLOSE);
382 SSL_set_bio(s,bio,bio);
383 ret=1;
384err:
385 return(ret);
386 }
387
388int SSL_set_wfd(SSL *s,int fd)
389 {
390 int ret=0;
391 BIO *bio=NULL;
392
393 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
394 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
395 {
396 bio=BIO_new(BIO_s_socket());
397
398 if (bio == NULL)
399 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
400 BIO_set_fd(bio,fd,BIO_NOCLOSE);
401 SSL_set_bio(s,SSL_get_rbio(s),bio);
402 }
403 else
404 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
405 ret=1;
406err:
407 return(ret);
408 }
409
410int SSL_set_rfd(SSL *s,int fd)
411 {
412 int ret=0;
413 BIO *bio=NULL;
414
415 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
416 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
417 {
418 bio=BIO_new(BIO_s_socket());
419
420 if (bio == NULL)
421 {
422 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
423 goto err;
424 }
425 BIO_set_fd(bio,fd,BIO_NOCLOSE);
426 SSL_set_bio(s,bio,SSL_get_wbio(s));
427 }
428 else
429 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
430 ret=1;
431err:
432 return(ret);
433 }
434#endif
435
436int SSL_get_verify_mode(SSL *s)
437 {
438 return(s->verify_mode);
439 }
440
441int SSL_get_verify_depth(SSL *s)
442 {
443 return(s->verify_depth);
444 }
445
446int (*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *)
447 {
448 return(s->verify_callback);
449 }
450
451int SSL_CTX_get_verify_mode(SSL_CTX *ctx)
452 {
453 return(ctx->verify_mode);
454 }
455
456int SSL_CTX_get_verify_depth(SSL_CTX *ctx)
457 {
458 return(ctx->verify_depth);
459 }
460
461int (*SSL_CTX_get_verify_callback(SSL_CTX *ctx))(int,X509_STORE_CTX *)
462 {
463 return(ctx->default_verify_callback);
464 }
465
466void SSL_set_verify(SSL *s,int mode,
467 int (*callback)(int ok,X509_STORE_CTX *ctx))
468 {
469 s->verify_mode=mode;
470 if (callback != NULL)
471 s->verify_callback=callback;
472 }
473
474void SSL_set_verify_depth(SSL *s,int depth)
475 {
476 s->verify_depth=depth;
477 }
478
479void SSL_set_read_ahead(SSL *s,int yes)
480 {
481 s->read_ahead=yes;
482 }
483
484int SSL_get_read_ahead(SSL *s)
485 {
486 return(s->read_ahead);
487 }
488
489int SSL_pending(SSL *s)
490 {
491 return(s->method->ssl_pending(s));
492 }
493
494X509 *SSL_get_peer_certificate(SSL *s)
495 {
496 X509 *r;
497
498 if ((s == NULL) || (s->session == NULL))
499 r=NULL;
500 else
501 r=s->session->peer;
502
503 if (r == NULL) return(r);
504
505 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
506
507 return(r);
508 }
509
510STACK_OF(X509) *SSL_get_peer_cert_chain(SSL *s)
511 {
512 STACK_OF(X509) *r;
513
514 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
515 r=NULL;
516 else
517 r=s->session->sess_cert->cert_chain;
518
519 return(r);
520 }
521
522/* Now in theory, since the calling process own 't' it should be safe to
523 * modify. We need to be able to read f without being hassled */
524void SSL_copy_session_id(SSL *t,SSL *f)
525 {
526 CERT *tmp;
527
528 /* Do we need to to SSL locking? */
529 SSL_set_session(t,SSL_get_session(f));
530
531 /* what if we are setup as SSLv2 but want to talk SSLv3 or
532 * vice-versa */
533 if (t->method != f->method)
534 {
535 t->method->ssl_free(t); /* cleanup current */
536 t->method=f->method; /* change method */
537 t->method->ssl_new(t); /* setup new */
538 }
539
540 tmp=t->cert;
541 if (f->cert != NULL)
542 {
543 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
544 t->cert=f->cert;
545 }
546 else
547 t->cert=NULL;
548 if (tmp != NULL) ssl_cert_free(tmp);
549 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
550 }
551
552/* Fix this so it checks all the valid key/cert options */
553int SSL_CTX_check_private_key(SSL_CTX *ctx)
554 {
555 if ( (ctx == NULL) ||
556 (ctx->cert == NULL) ||
557 (ctx->cert->key->x509 == NULL))
558 {
559 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
560 return(0);
561 }
562 if (ctx->cert->key->privatekey == NULL)
563 {
564 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
565 return(0);
566 }
567 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
568 }
569
570/* Fix this function so that it takes an optional type parameter */
571int SSL_check_private_key(SSL *ssl)
572 {
573 if (ssl == NULL)
574 {
575 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
576 return(0);
577 }
578 if (ssl->cert == NULL)
579 {
580 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
581 return 0;
582 }
583 if (ssl->cert->key->x509 == NULL)
584 {
585 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
586 return(0);
587 }
588 if (ssl->cert->key->privatekey == NULL)
589 {
590 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
591 return(0);
592 }
593 return(X509_check_private_key(ssl->cert->key->x509,
594 ssl->cert->key->privatekey));
595 }
596
597int SSL_accept(SSL *s)
598 {
599 if (s->handshake_func == 0)
600 /* Not properly initialized yet */
601 SSL_set_accept_state(s);
602
603 return(s->method->ssl_accept(s));
604 }
605
606int SSL_connect(SSL *s)
607 {
608 if (s->handshake_func == 0)
609 /* Not properly initialized yet */
610 SSL_set_connect_state(s);
611
612 return(s->method->ssl_connect(s));
613 }
614
615long SSL_get_default_timeout(SSL *s)
616 {
617 return(s->method->get_timeout());
618 }
619
620int SSL_read(SSL *s,char *buf,int num)
621 {
622 if (s->handshake_func == 0)
623 {
624 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
625 return -1;
626 }
627
628 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
629 {
630 s->rwstate=SSL_NOTHING;
631 return(0);
632 }
633 return(s->method->ssl_read(s,buf,num));
634 }
635
636int SSL_peek(SSL *s,char *buf,int num)
637 {
638 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
639 {
640 return(0);
641 }
642 return(s->method->ssl_peek(s,buf,num));
643 }
644
645int SSL_write(SSL *s,const char *buf,int num)
646 {
647 if (s->handshake_func == 0)
648 {
649 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
650 return -1;
651 }
652
653 if (s->shutdown & SSL_SENT_SHUTDOWN)
654 {
655 s->rwstate=SSL_NOTHING;
656 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
657 return(-1);
658 }
659 return(s->method->ssl_write(s,buf,num));
660 }
661
662int SSL_shutdown(SSL *s)
663 {
664 /* Note that this function behaves differently from what one might
665 * expect. Return values are 0 for no success (yet),
666 * 1 for success; but calling it once is usually not enough,
667 * even if blocking I/O is used (see ssl3_shutdown).
668 */
669
670 if (s->handshake_func == 0)
671 {
672 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
673 return -1;
674 }
675
676 if ((s != NULL) && !SSL_in_init(s))
677 return(s->method->ssl_shutdown(s));
678 else
679 return(1);
680 }
681
682int SSL_renegotiate(SSL *s)
683 {
684 s->new_session=1;
685 return(s->method->ssl_renegotiate(s));
686 }
687
688long SSL_ctrl(SSL *s,int cmd,long larg,char *parg)
689 {
690 long l;
691
692 switch (cmd)
693 {
694 case SSL_CTRL_GET_READ_AHEAD:
695 return(s->read_ahead);
696 case SSL_CTRL_SET_READ_AHEAD:
697 l=s->read_ahead;
698 s->read_ahead=larg;
699 return(l);
700 case SSL_CTRL_OPTIONS:
701 return(s->options|=larg);
702 case SSL_CTRL_MODE:
703 return(s->mode|=larg);
704 default:
705 return(s->method->ssl_ctrl(s,cmd,larg,parg));
706 }
707 }
708
709long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,char *parg)
710 {
711 long l;
712
713 switch (cmd)
714 {
715 case SSL_CTRL_GET_READ_AHEAD:
716 return(ctx->read_ahead);
717 case SSL_CTRL_SET_READ_AHEAD:
718 l=ctx->read_ahead;
719 ctx->read_ahead=larg;
720 return(l);
721
722 case SSL_CTRL_SET_SESS_CACHE_SIZE:
723 l=ctx->session_cache_size;
724 ctx->session_cache_size=larg;
725 return(l);
726 case SSL_CTRL_GET_SESS_CACHE_SIZE:
727 return(ctx->session_cache_size);
728 case SSL_CTRL_SET_SESS_CACHE_MODE:
729 l=ctx->session_cache_mode;
730 ctx->session_cache_mode=larg;
731 return(l);
732 case SSL_CTRL_GET_SESS_CACHE_MODE:
733 return(ctx->session_cache_mode);
734
735 case SSL_CTRL_SESS_NUMBER:
736 return(ctx->sessions->num_items);
737 case SSL_CTRL_SESS_CONNECT:
738 return(ctx->stats.sess_connect);
739 case SSL_CTRL_SESS_CONNECT_GOOD:
740 return(ctx->stats.sess_connect_good);
741 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
742 return(ctx->stats.sess_connect_renegotiate);
743 case SSL_CTRL_SESS_ACCEPT:
744 return(ctx->stats.sess_accept);
745 case SSL_CTRL_SESS_ACCEPT_GOOD:
746 return(ctx->stats.sess_accept_good);
747 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
748 return(ctx->stats.sess_accept_renegotiate);
749 case SSL_CTRL_SESS_HIT:
750 return(ctx->stats.sess_hit);
751 case SSL_CTRL_SESS_CB_HIT:
752 return(ctx->stats.sess_cb_hit);
753 case SSL_CTRL_SESS_MISSES:
754 return(ctx->stats.sess_miss);
755 case SSL_CTRL_SESS_TIMEOUTS:
756 return(ctx->stats.sess_timeout);
757 case SSL_CTRL_SESS_CACHE_FULL:
758 return(ctx->stats.sess_cache_full);
759 case SSL_CTRL_OPTIONS:
760 return(ctx->options|=larg);
761 case SSL_CTRL_MODE:
762 return(ctx->mode|=larg);
763 default:
764 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
765 }
766 }
767
768int ssl_cipher_id_cmp(SSL_CIPHER *a,SSL_CIPHER *b)
769 {
770 long l;
771
772 l=a->id-b->id;
773 if (l == 0L)
774 return(0);
775 else
776 return((l > 0)?1:-1);
777 }
778
779int ssl_cipher_ptr_id_cmp(SSL_CIPHER **ap,SSL_CIPHER **bp)
780 {
781 long l;
782
783 l=(*ap)->id-(*bp)->id;
784 if (l == 0L)
785 return(0);
786 else
787 return((l > 0)?1:-1);
788 }
789
790/** return a STACK of the ciphers available for the SSL and in order of
791 * preference */
792STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s)
793 {
794 if ((s != NULL) && (s->cipher_list != NULL))
795 {
796 return(s->cipher_list);
797 }
798 else if ((s->ctx != NULL) &&
799 (s->ctx->cipher_list != NULL))
800 {
801 return(s->ctx->cipher_list);
802 }
803 return(NULL);
804 }
805
806/** return a STACK of the ciphers available for the SSL and in order of
807 * algorithm id */
808STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
809 {
810 if ((s != NULL) && (s->cipher_list_by_id != NULL))
811 {
812 return(s->cipher_list_by_id);
813 }
814 else if ((s != NULL) && (s->ctx != NULL) &&
815 (s->ctx->cipher_list_by_id != NULL))
816 {
817 return(s->ctx->cipher_list_by_id);
818 }
819 return(NULL);
820 }
821
822/** The old interface to get the same thing as SSL_get_ciphers() */
823const char *SSL_get_cipher_list(SSL *s,int n)
824 {
825 SSL_CIPHER *c;
826 STACK_OF(SSL_CIPHER) *sk;
827
828 if (s == NULL) return(NULL);
829 sk=SSL_get_ciphers(s);
830 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
831 return(NULL);
832 c=sk_SSL_CIPHER_value(sk,n);
833 if (c == NULL) return(NULL);
834 return(c->name);
835 }
836
837/** specify the ciphers to be used by defaut by the SSL_CTX */
838int SSL_CTX_set_cipher_list(SSL_CTX *ctx,char *str)
839 {
840 STACK_OF(SSL_CIPHER) *sk;
841
842 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
843 &ctx->cipher_list_by_id,str);
844/* XXXX */
845 return((sk == NULL)?0:1);
846 }
847
848/** specify the ciphers to be used by the SSL */
849int SSL_set_cipher_list(SSL *s,char *str)
850 {
851 STACK_OF(SSL_CIPHER) *sk;
852
853 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
854 &s->cipher_list_by_id,str);
855/* XXXX */
856 return((sk == NULL)?0:1);
857 }
858
859/* works well for SSLv2, not so good for SSLv3 */
860char *SSL_get_shared_ciphers(SSL *s,char *buf,int len)
861 {
862 char *p;
863 const char *cp;
864 STACK_OF(SSL_CIPHER) *sk;
865 SSL_CIPHER *c;
866 int i;
867
868 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
869 (len < 2))
870 return(NULL);
871
872 p=buf;
873 sk=s->session->ciphers;
874 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
875 {
876 /* Decrement for either the ':' or a '\0' */
877 len--;
878 c=sk_SSL_CIPHER_value(sk,i);
879 for (cp=c->name; *cp; )
880 {
881 if (len-- == 0)
882 {
883 *p='\0';
884 return(buf);
885 }
886 else
887 *(p++)= *(cp++);
888 }
889 *(p++)=':';
890 }
891 p[-1]='\0';
892 return(buf);
893 }
894
895int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
896 {
897 int i,j=0;
898 SSL_CIPHER *c;
899 unsigned char *q;
900
901 if (sk == NULL) return(0);
902 q=p;
903
904 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
905 {
906 c=sk_SSL_CIPHER_value(sk,i);
907 j=ssl_put_cipher_by_char(s,c,p);
908 p+=j;
909 }
910 return(p-q);
911 }
912
913STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
914 STACK_OF(SSL_CIPHER) **skp)
915 {
916 SSL_CIPHER *c;
917 STACK_OF(SSL_CIPHER) *sk;
918 int i,n;
919
920 n=ssl_put_cipher_by_char(s,NULL,NULL);
921 if ((num%n) != 0)
922 {
923 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
924 return(NULL);
925 }
926 if ((skp == NULL) || (*skp == NULL))
927 sk=sk_SSL_CIPHER_new(NULL); /* change perhaps later */
928 else
929 {
930 sk= *skp;
931 sk_SSL_CIPHER_zero(sk);
932 }
933
934 for (i=0; i<num; i+=n)
935 {
936 c=ssl_get_cipher_by_char(s,p);
937 p+=n;
938 if (c != NULL)
939 {
940 if (!sk_SSL_CIPHER_push(sk,c))
941 {
942 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
943 goto err;
944 }
945 }
946 }
947
948 if (skp != NULL)
949 *skp=sk;
950 return(sk);
951err:
952 if ((skp == NULL) || (*skp == NULL))
953 sk_SSL_CIPHER_free(sk);
954 return(NULL);
955 }
956
957unsigned long SSL_SESSION_hash(SSL_SESSION *a)
958 {
959 unsigned long l;
960
961 l=(unsigned long)
962 ((unsigned int) a->session_id[0] )|
963 ((unsigned int) a->session_id[1]<< 8L)|
964 ((unsigned long)a->session_id[2]<<16L)|
965 ((unsigned long)a->session_id[3]<<24L);
966 return(l);
967 }
968
969int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
970 {
971 if (a->ssl_version != b->ssl_version)
972 return(1);
973 if (a->session_id_length != b->session_id_length)
974 return(1);
975 return(memcmp(a->session_id,b->session_id,a->session_id_length));
976 }
977
978SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
979 {
980 SSL_CTX *ret=NULL;
981
982 if (meth == NULL)
983 {
984 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
985 return(NULL);
986 }
987
988 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
989 {
990 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
991 goto err;
992 }
993 ret=(SSL_CTX *)Malloc(sizeof(SSL_CTX));
994 if (ret == NULL)
995 goto err;
996
997 memset(ret,0,sizeof(SSL_CTX));
998
999 ret->method=meth;
1000
1001 ret->cert_store=NULL;
1002 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1003 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1004 ret->session_cache_head=NULL;
1005 ret->session_cache_tail=NULL;
1006
1007 /* We take the system default */
1008 ret->session_timeout=meth->get_timeout();
1009
1010 ret->new_session_cb=NULL;
1011 ret->remove_session_cb=NULL;
1012 ret->get_session_cb=NULL;
1013
1014 memset((char *)&ret->stats,0,sizeof(ret->stats));
1015
1016 ret->references=1;
1017 ret->quiet_shutdown=0;
1018
1019/* ret->cipher=NULL;*/
1020/* ret->s2->challenge=NULL;
1021 ret->master_key=NULL;
1022 ret->key_arg=NULL;
1023 ret->s2->conn_id=NULL; */
1024
1025 ret->info_callback=NULL;
1026
1027 ret->app_verify_callback=NULL;
1028 ret->app_verify_arg=NULL;
1029
1030 ret->read_ahead=0;
1031 ret->verify_mode=SSL_VERIFY_NONE;
1032 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1033 ret->default_verify_callback=NULL;
1034 if ((ret->cert=ssl_cert_new()) == NULL)
1035 goto err;
1036
1037 ret->default_passwd_callback=NULL;
1038 ret->default_passwd_callback_userdata=NULL;
1039 ret->client_cert_cb=NULL;
1040
1041 ret->sessions=lh_new(SSL_SESSION_hash,SSL_SESSION_cmp);
1042 if (ret->sessions == NULL) goto err;
1043 ret->cert_store=X509_STORE_new();
1044 if (ret->cert_store == NULL) goto err;
1045
1046 ssl_create_cipher_list(ret->method,
1047 &ret->cipher_list,&ret->cipher_list_by_id,
1048 SSL_DEFAULT_CIPHER_LIST);
1049 if (ret->cipher_list == NULL
1050 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1051 {
1052 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1053 goto err2;
1054 }
1055
1056 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1057 {
1058 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1059 goto err2;
1060 }
1061 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1062 {
1063 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1064 goto err2;
1065 }
1066 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1067 {
1068 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1069 goto err2;
1070 }
1071
1072 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1073 goto err;
1074
1075 CRYPTO_new_ex_data(ssl_ctx_meth,(char *)ret,&ret->ex_data);
1076
1077 ret->extra_certs=NULL;
1078 ret->comp_methods=SSL_COMP_get_compression_methods();
1079
1080 return(ret);
1081err:
1082 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1083err2:
1084 if (ret != NULL) SSL_CTX_free(ret);
1085 return(NULL);
1086 }
1087
1088static void SSL_COMP_free(SSL_COMP *comp)
1089 { Free(comp); }
1090
1091void SSL_CTX_free(SSL_CTX *a)
1092 {
1093 int i;
1094
1095 if (a == NULL) return;
1096
1097 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1098#ifdef REF_PRINT
1099 REF_PRINT("SSL_CTX",a);
1100#endif
1101 if (i > 0) return;
1102#ifdef REF_CHECK
1103 if (i < 0)
1104 {
1105 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1106 abort(); /* ok */
1107 }
1108#endif
1109 CRYPTO_free_ex_data(ssl_ctx_meth,(char *)a,&a->ex_data);
1110
1111 if (a->sessions != NULL)
1112 {
1113 SSL_CTX_flush_sessions(a,0);
1114 lh_free(a->sessions);
1115 }
1116 if (a->cert_store != NULL)
1117 X509_STORE_free(a->cert_store);
1118 if (a->cipher_list != NULL)
1119 sk_SSL_CIPHER_free(a->cipher_list);
1120 if (a->cipher_list_by_id != NULL)
1121 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1122 if (a->cert != NULL)
1123 ssl_cert_free(a->cert);
1124 if (a->client_CA != NULL)
1125 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1126 if (a->extra_certs != NULL)
1127 sk_X509_pop_free(a->extra_certs,X509_free);
1128 if (a->comp_methods != NULL)
1129 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1130 Free((char *)a);
1131 }
1132
1133void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1134 {
1135 ctx->default_passwd_callback=cb;
1136 }
1137
1138void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1139 {
1140 ctx->default_passwd_callback_userdata=u;
1141 }
1142
1143void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,int (*cb)(),char *arg)
1144 {
1145 /* now
1146 * int (*cb)(X509_STORE_CTX *),
1147 * but should be
1148 * int (*cb)(X509_STORE_CTX *, void *arg)
1149 */
1150 ctx->app_verify_callback=cb;
1151 ctx->app_verify_arg=arg; /* never used */
1152 }
1153
1154void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1155 {
1156 ctx->verify_mode=mode;
1157 ctx->default_verify_callback=cb;
1158 /* This needs cleaning up EAY EAY EAY */
1159 X509_STORE_set_verify_cb_func(ctx->cert_store,cb);
1160 }
1161
1162void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1163 {
1164 ctx->verify_depth=depth;
1165 }
1166
1167void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1168 {
1169 CERT_PKEY *cpk;
1170 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1171 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1172 int rsa_tmp_export,dh_tmp_export,kl;
1173 unsigned long mask,emask;
1174
1175 if (c == NULL) return;
1176
1177 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1178
1179#ifndef NO_RSA
1180 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1181 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1182 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1183#else
1184 rsa_tmp=rsa_tmp_export=0;
1185#endif
1186#ifndef NO_DH
1187 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1188 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1189 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1190#else
1191 dh_tmp=dh_tmp_export=0;
1192#endif
1193
1194 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1195 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1196 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1197 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1198 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1199 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1200 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1201 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1202 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1203 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1204 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1205/* FIX THIS EAY EAY EAY */
1206 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1207 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1208
1209 mask=0;
1210 emask=0;
1211
1212#ifdef CIPHER_DEBUG
1213 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1214 rsa_tmp,rsa_tmp_export,dh_tmp,
1215 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1216#endif
1217
1218 if (rsa_enc || (rsa_tmp && rsa_sign))
1219 mask|=SSL_kRSA;
1220 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1221 emask|=SSL_kRSA;
1222
1223#if 0
1224 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1225 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1226 (rsa_enc || rsa_sign || dsa_sign))
1227 mask|=SSL_kEDH;
1228 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1229 (rsa_enc || rsa_sign || dsa_sign))
1230 emask|=SSL_kEDH;
1231#endif
1232
1233 if (dh_tmp_export)
1234 emask|=SSL_kEDH;
1235
1236 if (dh_tmp)
1237 mask|=SSL_kEDH;
1238
1239 if (dh_rsa) mask|=SSL_kDHr;
1240 if (dh_rsa_export) emask|=SSL_kDHr;
1241
1242 if (dh_dsa) mask|=SSL_kDHd;
1243 if (dh_dsa_export) emask|=SSL_kDHd;
1244
1245 if (rsa_enc || rsa_sign)
1246 {
1247 mask|=SSL_aRSA;
1248 emask|=SSL_aRSA;
1249 }
1250
1251 if (dsa_sign)
1252 {
1253 mask|=SSL_aDSS;
1254 emask|=SSL_aDSS;
1255 }
1256
1257#ifdef SSL_ALLOW_ADH
1258 mask|=SSL_aNULL;
1259 emask|=SSL_aNULL;
1260#endif
1261
1262 c->mask=mask;
1263 c->export_mask=emask;
1264 c->valid=1;
1265 }
1266
1267/* THIS NEEDS CLEANING UP */
1268X509 *ssl_get_server_send_cert(SSL *s)
1269 {
1270 unsigned long alg,mask,kalg;
1271 CERT *c;
1272 int i,is_export;
1273
1274 c=s->cert;
1275 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1276 alg=s->s3->tmp.new_cipher->algorithms;
1277 is_export=SSL_IS_EXPORT(alg);
1278 mask=is_export?c->export_mask:c->mask;
1279 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1280
1281 if (kalg & SSL_kDHr)
1282 i=SSL_PKEY_DH_RSA;
1283 else if (kalg & SSL_kDHd)
1284 i=SSL_PKEY_DH_DSA;
1285 else if (kalg & SSL_aDSS)
1286 i=SSL_PKEY_DSA_SIGN;
1287 else if (kalg & SSL_aRSA)
1288 {
1289 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1290 i=SSL_PKEY_RSA_SIGN;
1291 else
1292 i=SSL_PKEY_RSA_ENC;
1293 }
1294 else /* if (kalg & SSL_aNULL) */
1295 {
1296 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,SSL_R_INTERNAL_ERROR);
1297 return(NULL);
1298 }
1299 if (c->pkeys[i].x509 == NULL) return(NULL);
1300 return(c->pkeys[i].x509);
1301 }
1302
1303EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1304 {
1305 unsigned long alg;
1306 CERT *c;
1307
1308 alg=cipher->algorithms;
1309 c=s->cert;
1310
1311 if ((alg & SSL_aDSS) &&
1312 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1313 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1314 else if (alg & SSL_aRSA)
1315 {
1316 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1317 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1318 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1319 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1320 else
1321 return(NULL);
1322 }
1323 else /* if (alg & SSL_aNULL) */
1324 {
1325 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,SSL_R_INTERNAL_ERROR);
1326 return(NULL);
1327 }
1328 }
1329
1330void ssl_update_cache(SSL *s,int mode)
1331 {
1332 int i;
1333
1334 /* If the session_id_length is 0, we are not supposed to cache it,
1335 * and it would be rather hard to do anyway :-) */
1336 if (s->session->session_id_length == 0) return;
1337
1338 if ((s->ctx->session_cache_mode & mode)
1339 && (!s->hit)
1340 && SSL_CTX_add_session(s->ctx,s->session)
1341 && (s->ctx->new_session_cb != NULL))
1342 {
1343 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1344 if (!s->ctx->new_session_cb(s,s->session))
1345 SSL_SESSION_free(s->session);
1346 }
1347
1348 /* auto flush every 255 connections */
1349 i=s->ctx->session_cache_mode;
1350 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1351 ((i & mode) == mode))
1352 {
1353 if ( (((mode & SSL_SESS_CACHE_CLIENT)
1354 ?s->ctx->stats.sess_connect_good
1355 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1356 {
1357 SSL_CTX_flush_sessions(s->ctx,time(NULL));
1358 }
1359 }
1360 }
1361
1362SSL_METHOD *SSL_get_ssl_method(SSL *s)
1363 {
1364 return(s->method);
1365 }
1366
1367int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1368 {
1369 int conn= -1;
1370 int ret=1;
1371
1372 if (s->method != meth)
1373 {
1374 if (s->handshake_func != NULL)
1375 conn=(s->handshake_func == s->method->ssl_connect);
1376
1377 if (s->method->version == meth->version)
1378 s->method=meth;
1379 else
1380 {
1381 s->method->ssl_free(s);
1382 s->method=meth;
1383 ret=s->method->ssl_new(s);
1384 }
1385
1386 if (conn == 1)
1387 s->handshake_func=meth->ssl_connect;
1388 else if (conn == 0)
1389 s->handshake_func=meth->ssl_accept;
1390 }
1391 return(ret);
1392 }
1393
1394int SSL_get_error(SSL *s,int i)
1395 {
1396 int reason;
1397 unsigned long l;
1398 BIO *bio;
1399
1400 if (i > 0) return(SSL_ERROR_NONE);
1401
1402 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1403 * etc, where we do encode the error */
1404 if ((l=ERR_peek_error()) != 0)
1405 {
1406 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1407 return(SSL_ERROR_SYSCALL);
1408 else
1409 return(SSL_ERROR_SSL);
1410 }
1411
1412 if ((i < 0) && SSL_want_read(s))
1413 {
1414 bio=SSL_get_rbio(s);
1415 if (BIO_should_read(bio))
1416 return(SSL_ERROR_WANT_READ);
1417 else if (BIO_should_write(bio))
1418 /* This one doesn't make too much sense ... We never try
1419 * to write to the rbio, and an application program where
1420 * rbio and wbio are separate couldn't even know what it
1421 * should wait for.
1422 * However if we ever set s->rwstate incorrectly
1423 * (so that we have SSL_want_read(s) instead of
1424 * SSL_want_write(s)) and rbio and wbio *are* the same,
1425 * this test works around that bug; so it might be safer
1426 * to keep it. */
1427 return(SSL_ERROR_WANT_WRITE);
1428 else if (BIO_should_io_special(bio))
1429 {
1430 reason=BIO_get_retry_reason(bio);
1431 if (reason == BIO_RR_CONNECT)
1432 return(SSL_ERROR_WANT_CONNECT);
1433 else
1434 return(SSL_ERROR_SYSCALL); /* unknown */
1435 }
1436 }
1437
1438 if ((i < 0) && SSL_want_write(s))
1439 {
1440 bio=SSL_get_wbio(s);
1441 if (BIO_should_write(bio))
1442 return(SSL_ERROR_WANT_WRITE);
1443 else if (BIO_should_read(bio))
1444 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1445 return(SSL_ERROR_WANT_READ);
1446 else if (BIO_should_io_special(bio))
1447 {
1448 reason=BIO_get_retry_reason(bio);
1449 if (reason == BIO_RR_CONNECT)
1450 return(SSL_ERROR_WANT_CONNECT);
1451 else
1452 return(SSL_ERROR_SYSCALL);
1453 }
1454 }
1455 if ((i < 0) && SSL_want_x509_lookup(s))
1456 {
1457 return(SSL_ERROR_WANT_X509_LOOKUP);
1458 }
1459
1460 if (i == 0)
1461 {
1462 if (s->version == SSL2_VERSION)
1463 {
1464 /* assume it is the socket being closed */
1465 return(SSL_ERROR_ZERO_RETURN);
1466 }
1467 else
1468 {
1469 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1470 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1471 return(SSL_ERROR_ZERO_RETURN);
1472 }
1473 }
1474 return(SSL_ERROR_SYSCALL);
1475 }
1476
1477int SSL_do_handshake(SSL *s)
1478 {
1479 int ret=1;
1480
1481 if (s->handshake_func == NULL)
1482 {
1483 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1484 return(-1);
1485 }
1486
1487 s->method->ssl_renegotiate_check(s);
1488
1489 if (SSL_in_init(s) || SSL_in_before(s))
1490 {
1491 ret=s->handshake_func(s);
1492 }
1493 return(ret);
1494 }
1495
1496/* For the next 2 functions, SSL_clear() sets shutdown and so
1497 * one of these calls will reset it */
1498void SSL_set_accept_state(SSL *s)
1499 {
1500 s->server=1;
1501 s->shutdown=0;
1502 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1503 s->handshake_func=s->method->ssl_accept;
1504 /* clear the current cipher */
1505 ssl_clear_cipher_ctx(s);
1506 }
1507
1508void SSL_set_connect_state(SSL *s)
1509 {
1510 s->server=0;
1511 s->shutdown=0;
1512 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1513 s->handshake_func=s->method->ssl_connect;
1514 /* clear the current cipher */
1515 ssl_clear_cipher_ctx(s);
1516 }
1517
1518int ssl_undefined_function(SSL *s)
1519 {
1520 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1521 return(0);
1522 }
1523
1524SSL_METHOD *ssl_bad_method(int ver)
1525 {
1526 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1527 return(NULL);
1528 }
1529
1530char *SSL_get_version(SSL *s)
1531 {
1532 if (s->version == TLS1_VERSION)
1533 return("TLSv1");
1534 else if (s->version == SSL3_VERSION)
1535 return("SSLv3");
1536 else if (s->version == SSL2_VERSION)
1537 return("SSLv2");
1538 else
1539 return("unknown");
1540 }
1541
1542SSL *SSL_dup(SSL *s)
1543 {
1544 STACK_OF(X509_NAME) *sk;
1545 X509_NAME *xn;
1546 SSL *ret;
1547 int i;
1548
1549 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
1550 return(NULL);
1551
1552 if (s->session != NULL)
1553 {
1554 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1555 SSL_copy_session_id(ret,s);
1556 }
1557 else
1558 {
1559 /* No session has been established yet, so we have to expect
1560 * that s->cert or ret->cert will be changed later --
1561 * they should not both point to the same object,
1562 * and thus we can't use SSL_copy_session_id. */
1563
1564 ret->method = s->method;
1565 ret->method->ssl_new(ret);
1566
1567 if (s->cert != NULL)
1568 {
1569 ret->cert = ssl_cert_dup(s->cert);
1570 if (ret->cert == NULL)
1571 goto err;
1572 }
1573
1574 SSL_set_session_id_context(ret,
1575 s->sid_ctx, s->sid_ctx_length);
1576 }
1577
1578 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1579 SSL_set_verify(ret,SSL_get_verify_mode(s),
1580 SSL_get_verify_callback(s));
1581 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
1582
1583 SSL_set_info_callback(ret,SSL_get_info_callback(s));
1584
1585 ret->debug=s->debug;
1586 ret->options=s->options;
1587
1588 /* copy app data, a little dangerous perhaps */
1589 if (!CRYPTO_dup_ex_data(ssl_meth,&ret->ex_data,&s->ex_data))
1590 goto err;
1591
1592 /* setup rbio, and wbio */
1593 if (s->rbio != NULL)
1594 {
1595 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1596 goto err;
1597 }
1598 if (s->wbio != NULL)
1599 {
1600 if (s->wbio != s->rbio)
1601 {
1602 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1603 goto err;
1604 }
1605 else
1606 ret->wbio=ret->rbio;
1607 }
1608
1609 /* dup the cipher_list and cipher_list_by_id stacks */
1610 if (s->cipher_list != NULL)
1611 {
1612 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
1613 goto err;
1614 }
1615 if (s->cipher_list_by_id != NULL)
1616 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
1617 == NULL)
1618 goto err;
1619
1620 /* Dup the client_CA list */
1621 if (s->client_CA != NULL)
1622 {
1623 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
1624 ret->client_CA=sk;
1625 for (i=0; i<sk_X509_NAME_num(sk); i++)
1626 {
1627 xn=sk_X509_NAME_value(sk,i);
1628 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
1629 {
1630 X509_NAME_free(xn);
1631 goto err;
1632 }
1633 }
1634 }
1635
1636 ret->shutdown=s->shutdown;
1637 ret->state=s->state;
1638 ret->handshake_func=s->handshake_func;
1639 ret->server=s->server;
1640
1641 if (0)
1642 {
1643err:
1644 if (ret != NULL) SSL_free(ret);
1645 ret=NULL;
1646 }
1647 return(ret);
1648 }
1649
1650void ssl_clear_cipher_ctx(SSL *s)
1651 {
1652 if (s->enc_read_ctx != NULL)
1653 {
1654 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
1655 Free(s->enc_read_ctx);
1656 s->enc_read_ctx=NULL;
1657 }
1658 if (s->enc_write_ctx != NULL)
1659 {
1660 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
1661 Free(s->enc_write_ctx);
1662 s->enc_write_ctx=NULL;
1663 }
1664 if (s->expand != NULL)
1665 {
1666 COMP_CTX_free(s->expand);
1667 s->expand=NULL;
1668 }
1669 if (s->compress != NULL)
1670 {
1671 COMP_CTX_free(s->compress);
1672 s->compress=NULL;
1673 }
1674 }
1675
1676/* Fix this function so that it takes an optional type parameter */
1677X509 *SSL_get_certificate(SSL *s)
1678 {
1679 if (s->cert != NULL)
1680 return(s->cert->key->x509);
1681 else
1682 return(NULL);
1683 }
1684
1685/* Fix this function so that it takes an optional type parameter */
1686EVP_PKEY *SSL_get_privatekey(SSL *s)
1687 {
1688 if (s->cert != NULL)
1689 return(s->cert->key->privatekey);
1690 else
1691 return(NULL);
1692 }
1693
1694SSL_CIPHER *SSL_get_current_cipher(SSL *s)
1695 {
1696 if ((s->session != NULL) && (s->session->cipher != NULL))
1697 return(s->session->cipher);
1698 return(NULL);
1699 }
1700
1701int ssl_init_wbio_buffer(SSL *s,int push)
1702 {
1703 BIO *bbio;
1704
1705 if (s->bbio == NULL)
1706 {
1707 bbio=BIO_new(BIO_f_buffer());
1708 if (bbio == NULL) return(0);
1709 s->bbio=bbio;
1710 }
1711 else
1712 {
1713 bbio=s->bbio;
1714 if (s->bbio == s->wbio)
1715 s->wbio=BIO_pop(s->wbio);
1716 }
1717 (void)BIO_reset(bbio);
1718/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
1719 if (!BIO_set_read_buffer_size(bbio,1))
1720 {
1721 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
1722 return(0);
1723 }
1724 if (push)
1725 {
1726 if (s->wbio != bbio)
1727 s->wbio=BIO_push(bbio,s->wbio);
1728 }
1729 else
1730 {
1731 if (s->wbio == bbio)
1732 s->wbio=BIO_pop(bbio);
1733 }
1734 return(1);
1735 }
1736
1737void ssl_free_wbio_buffer(SSL *s)
1738 {
1739 BIO *under;
1740
1741 if (s->bbio == NULL) return;
1742
1743 if (s->bbio == s->wbio)
1744 {
1745 /* remove buffering */
1746 under=BIO_pop(s->wbio);
1747 if (under != NULL)
1748 s->wbio=under;
1749 else
1750 abort(); /* ok */
1751 }
1752 BIO_free(s->bbio);
1753 s->bbio=NULL;
1754 }
1755
1756void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
1757 {
1758 ctx->quiet_shutdown=mode;
1759 }
1760
1761int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx)
1762 {
1763 return(ctx->quiet_shutdown);
1764 }
1765
1766void SSL_set_quiet_shutdown(SSL *s,int mode)
1767 {
1768 s->quiet_shutdown=mode;
1769 }
1770
1771int SSL_get_quiet_shutdown(SSL *s)
1772 {
1773 return(s->quiet_shutdown);
1774 }
1775
1776void SSL_set_shutdown(SSL *s,int mode)
1777 {
1778 s->shutdown=mode;
1779 }
1780
1781int SSL_get_shutdown(SSL *s)
1782 {
1783 return(s->shutdown);
1784 }
1785
1786int SSL_version(SSL *s)
1787 {
1788 return(s->version);
1789 }
1790
1791SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
1792 {
1793 return(ssl->ctx);
1794 }
1795
1796#ifndef NO_STDIO
1797int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
1798 {
1799 return(X509_STORE_set_default_paths(ctx->cert_store));
1800 }
1801
1802int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
1803 const char *CApath)
1804 {
1805 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
1806 }
1807#endif
1808
1809void SSL_set_info_callback(SSL *ssl,void (*cb)())
1810 {
1811 ssl->info_callback=cb;
1812 }
1813
1814void (*SSL_get_info_callback(SSL *ssl))(void)
1815 {
1816 return((void (*)())ssl->info_callback);
1817 }
1818
1819int SSL_state(SSL *ssl)
1820 {
1821 return(ssl->state);
1822 }
1823
1824void SSL_set_verify_result(SSL *ssl,long arg)
1825 {
1826 ssl->verify_result=arg;
1827 }
1828
1829long SSL_get_verify_result(SSL *ssl)
1830 {
1831 return(ssl->verify_result);
1832 }
1833
1834int SSL_get_ex_new_index(long argl,char *argp,int (*new_func)(),
1835 int (*dup_func)(),void (*free_func)())
1836 {
1837 ssl_meth_num++;
1838 return(CRYPTO_get_ex_new_index(ssl_meth_num-1,
1839 &ssl_meth,argl,argp,new_func,dup_func,free_func));
1840 }
1841
1842int SSL_set_ex_data(SSL *s,int idx,void *arg)
1843 {
1844 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1845 }
1846
1847void *SSL_get_ex_data(SSL *s,int idx)
1848 {
1849 return(CRYPTO_get_ex_data(&s->ex_data,idx));
1850 }
1851
1852int SSL_CTX_get_ex_new_index(long argl,char *argp,int (*new_func)(),
1853 int (*dup_func)(),void (*free_func)())
1854 {
1855 ssl_ctx_meth_num++;
1856 return(CRYPTO_get_ex_new_index(ssl_ctx_meth_num-1,
1857 &ssl_ctx_meth,argl,argp,new_func,dup_func,free_func));
1858 }
1859
1860int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
1861 {
1862 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
1863 }
1864
1865void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx)
1866 {
1867 return(CRYPTO_get_ex_data(&s->ex_data,idx));
1868 }
1869
1870int ssl_ok(SSL *s)
1871 {
1872 return(1);
1873 }
1874
1875X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx)
1876 {
1877 return(ctx->cert_store);
1878 }
1879
1880void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
1881 {
1882 if (ctx->cert_store != NULL)
1883 X509_STORE_free(ctx->cert_store);
1884 ctx->cert_store=store;
1885 }
1886
1887int SSL_want(SSL *s)
1888 {
1889 return(s->rwstate);
1890 }
1891
1892/*!
1893 * \brief Set the callback for generating temporary RSA keys.
1894 * \param ctx the SSL context.
1895 * \param cb the callback
1896 */
1897
1898#ifndef NO_RSA
1899void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
1900 int is_export,
1901 int keylength))
1902 { SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,0,(char *)cb); }
1903#endif
1904
1905#ifndef NO_RSA
1906void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,int is_export,
1907 int keylength))
1908 { SSL_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,0,(char *)cb); }
1909#endif
1910
1911#ifdef DOXYGEN
1912/*!
1913 * \brief The RSA temporary key callback function.
1914 * \param ssl the SSL session.
1915 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
1916 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
1917 * of the required key in bits.
1918 * \return the temporary RSA key.
1919 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
1920 */
1921
1922RSA *cb(SSL *ssl,int is_export,int keylength)
1923 {}
1924#endif
1925
1926/*!
1927 * \brief Set the callback for generating temporary DH keys.
1928 * \param ctx the SSL context.
1929 * \param dh the callback
1930 */
1931
1932#ifndef NO_DH
1933void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
1934 int keylength))
1935 { SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,0,(char *)dh); }
1936
1937void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
1938 int keylength))
1939 { SSL_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,0,(char *)dh); }
1940#endif
1941
1942#if defined(_WINDLL) && defined(WIN16)
1943#include "../crypto/bio/bss_file.c"
1944#endif
1945
1946IMPLEMENT_STACK_OF(SSL_CIPHER)
1947IMPLEMENT_STACK_OF(SSL_COMP)
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-03-22 12:28:02 +0000