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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 * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
62 *
63 * Redistribution and use in source and binary forms, with or without
64 * modification, are permitted provided that the following conditions
65 * are met:
66 *
67 * 1. Redistributions of source code must retain the above copyright
68 * notice, this list of conditions and the following disclaimer.
69 *
70 * 2. Redistributions in binary form must reproduce the above copyright
71 * notice, this list of conditions and the following disclaimer in
72 * the documentation and/or other materials provided with the
73 * distribution.
74 *
75 * 3. All advertising materials mentioning features or use of this
76 * software must display the following acknowledgment:
77 * "This product includes software developed by the OpenSSL Project
78 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
79 *
80 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
81 * endorse or promote products derived from this software without
82 * prior written permission. For written permission, please contact
83 * openssl-core@openssl.org.
84 *
85 * 5. Products derived from this software may not be called "OpenSSL"
86 * nor may "OpenSSL" appear in their names without prior written
87 * permission of the OpenSSL Project.
88 *
89 * 6. Redistributions of any form whatsoever must retain the following
90 * acknowledgment:
91 * "This product includes software developed by the OpenSSL Project
92 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
93 *
94 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
95 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
96 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
97 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
98 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
99 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
100 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
101 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
102 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
103 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
104 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
105 * OF THE POSSIBILITY OF SUCH DAMAGE.
106 * ====================================================================
107 *
108 * This product includes cryptographic software written by Eric Young
109 * (eay@cryptsoft.com). This product includes software written by Tim
110 * Hudson (tjh@cryptsoft.com).
111 *
112 */
113
114
115#ifdef REF_CHECK
116# include <assert.h>
117#endif
118#include <stdio.h>
119#include "ssl_locl.h"
120#include "kssl_lcl.h"
121#include <openssl/objects.h>
122#include <openssl/lhash.h>
123#include <openssl/x509v3.h>
124
125const char *SSL_version_str=OPENSSL_VERSION_TEXT;
126
127OPENSSL_GLOBAL SSL3_ENC_METHOD ssl3_undef_enc_method={
128 /* evil casts, but these functions are only called if there's a library bug */
129 (int (*)(SSL *,int))ssl_undefined_function,
130 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
131 ssl_undefined_function,
132 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
133 (int (*)(SSL*, int))ssl_undefined_function,
134 (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function
135 };
136
137int SSL_clear(SSL *s)
138 {
139
140 if (s->method == NULL)
141 {
142 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
143 return(0);
144 }
145
146 if (ssl_clear_bad_session(s))
147 {
148 SSL_SESSION_free(s->session);
149 s->session=NULL;
150 }
151
152 s->error=0;
153 s->hit=0;
154 s->shutdown=0;
155
156#if 0 /* Disabled since version 1.10 of this file (early return not
157 * needed because SSL_clear is not called when doing renegotiation) */
158 /* This is set if we are doing dynamic renegotiation so keep
159 * the old cipher. It is sort of a SSL_clear_lite :-) */
160 if (s->new_session) return(1);
161#else
162 if (s->new_session)
163 {
164 SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR);
165 return 0;
166 }
167#endif
168
169 s->type=0;
170
171 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
172
173 s->version=s->method->version;
174 s->client_version=s->version;
175 s->rwstate=SSL_NOTHING;
176 s->rstate=SSL_ST_READ_HEADER;
177#if 0
178 s->read_ahead=s->ctx->read_ahead;
179#endif
180
181 if (s->init_buf != NULL)
182 {
183 BUF_MEM_free(s->init_buf);
184 s->init_buf=NULL;
185 }
186
187 ssl_clear_cipher_ctx(s);
188
189 s->first_packet=0;
190
191#if 1
192 /* Check to see if we were changed into a different method, if
193 * so, revert back if we are not doing session-id reuse. */
194 if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method))
195 {
196 s->method->ssl_free(s);
197 s->method=s->ctx->method;
198 if (!s->method->ssl_new(s))
199 return(0);
200 }
201 else
202#endif
203 s->method->ssl_clear(s);
204 return(1);
205 }
206
207/** Used to change an SSL_CTXs default SSL method type */
208int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth)
209 {
210 STACK_OF(SSL_CIPHER) *sk;
211
212 ctx->method=meth;
213
214 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
215 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
216 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
217 {
218 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
219 return(0);
220 }
221 return(1);
222 }
223
224SSL *SSL_new(SSL_CTX *ctx)
225 {
226 SSL *s;
227
228 if (ctx == NULL)
229 {
230 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
231 return(NULL);
232 }
233 if (ctx->method == NULL)
234 {
235 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
236 return(NULL);
237 }
238
239 s=(SSL *)OPENSSL_malloc(sizeof(SSL));
240 if (s == NULL) goto err;
241 memset(s,0,sizeof(SSL));
242
243#ifndef OPENSSL_NO_KRB5
244 s->kssl_ctx = kssl_ctx_new();
245#endif /* OPENSSL_NO_KRB5 */
246
247 s->options=ctx->options;
248 s->mode=ctx->mode;
249 s->max_cert_list=ctx->max_cert_list;
250
251 if (ctx->cert != NULL)
252 {
253 /* Earlier library versions used to copy the pointer to
254 * the CERT, not its contents; only when setting new
255 * parameters for the per-SSL copy, ssl_cert_new would be
256 * called (and the direct reference to the per-SSL_CTX
257 * settings would be lost, but those still were indirectly
258 * accessed for various purposes, and for that reason they
259 * used to be known as s->ctx->default_cert).
260 * Now we don't look at the SSL_CTX's CERT after having
261 * duplicated it once. */
262
263 s->cert = ssl_cert_dup(ctx->cert);
264 if (s->cert == NULL)
265 goto err;
266 }
267 else
268 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
269
270 s->read_ahead=ctx->read_ahead;
271 s->msg_callback=ctx->msg_callback;
272 s->msg_callback_arg=ctx->msg_callback_arg;
273 s->verify_mode=ctx->verify_mode;
274 s->verify_depth=ctx->verify_depth;
275 s->sid_ctx_length=ctx->sid_ctx_length;
276 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
277 s->verify_callback=ctx->default_verify_callback;
278 s->generate_session_id=ctx->generate_session_id;
279 s->purpose = ctx->purpose;
280 s->trust = ctx->trust;
281 s->quiet_shutdown=ctx->quiet_shutdown;
282
283 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
284 s->ctx=ctx;
285
286 s->verify_result=X509_V_OK;
287
288 s->method=ctx->method;
289
290 if (!s->method->ssl_new(s))
291 goto err;
292
293 s->references=1;
294 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
295
296 SSL_clear(s);
297
298 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
299
300 return(s);
301err:
302 if (s != NULL)
303 {
304 if (s->cert != NULL)
305 ssl_cert_free(s->cert);
306 if (s->ctx != NULL)
307 SSL_CTX_free(s->ctx); /* decrement reference count */
308 OPENSSL_free(s);
309 }
310 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
311 return(NULL);
312 }
313
314int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
315 unsigned int sid_ctx_len)
316 {
317 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
318 {
319 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
320 return 0;
321 }
322 ctx->sid_ctx_length=sid_ctx_len;
323 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
324
325 return 1;
326 }
327
328int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
329 unsigned int sid_ctx_len)
330 {
331 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
332 {
333 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
334 return 0;
335 }
336 ssl->sid_ctx_length=sid_ctx_len;
337 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
338
339 return 1;
340 }
341
342int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
343 {
344 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
345 ctx->generate_session_id = cb;
346 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
347 return 1;
348 }
349
350int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
351 {
352 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
353 ssl->generate_session_id = cb;
354 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
355 return 1;
356 }
357
358int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
359 unsigned int id_len)
360 {
361 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
362 * we can "construct" a session to give us the desired check - ie. to
363 * find if there's a session in the hash table that would conflict with
364 * any new session built out of this id/id_len and the ssl_version in
365 * use by this SSL. */
366 SSL_SESSION r, *p;
367 r.ssl_version = ssl->version;
368 r.session_id_length = id_len;
369 memcpy(r.session_id, id, id_len);
370 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
371 * callback is calling us to check the uniqueness of a shorter ID, it
372 * must be compared as a padded-out ID because that is what it will be
373 * converted to when the callback has finished choosing it. */
374 if((r.ssl_version == SSL2_VERSION) &&
375 (id_len < SSL2_SSL_SESSION_ID_LENGTH))
376 {
377 memset(r.session_id + id_len, 0,
378 SSL2_SSL_SESSION_ID_LENGTH - id_len);
379 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
380 }
381
382 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
383 p = (SSL_SESSION *)lh_retrieve(ssl->ctx->sessions, &r);
384 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
385 return (p != NULL);
386 }
387
388int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
389 {
390 return X509_PURPOSE_set(&s->purpose, purpose);
391 }
392
393int SSL_set_purpose(SSL *s, int purpose)
394 {
395 return X509_PURPOSE_set(&s->purpose, purpose);
396 }
397
398int SSL_CTX_set_trust(SSL_CTX *s, int trust)
399 {
400 return X509_TRUST_set(&s->trust, trust);
401 }
402
403int SSL_set_trust(SSL *s, int trust)
404 {
405 return X509_TRUST_set(&s->trust, trust);
406 }
407
408void SSL_free(SSL *s)
409 {
410 int i;
411
412 if(s == NULL)
413 return;
414
415 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
416#ifdef REF_PRINT
417 REF_PRINT("SSL",s);
418#endif
419 if (i > 0) return;
420#ifdef REF_CHECK
421 if (i < 0)
422 {
423 fprintf(stderr,"SSL_free, bad reference count\n");
424 abort(); /* ok */
425 }
426#endif
427
428 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
429
430 if (s->bbio != NULL)
431 {
432 /* If the buffering BIO is in place, pop it off */
433 if (s->bbio == s->wbio)
434 {
435 s->wbio=BIO_pop(s->wbio);
436 }
437 BIO_free(s->bbio);
438 s->bbio=NULL;
439 }
440 if (s->rbio != NULL)
441 BIO_free_all(s->rbio);
442 if ((s->wbio != NULL) && (s->wbio != s->rbio))
443 BIO_free_all(s->wbio);
444
445 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
446
447 /* add extra stuff */
448 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
449 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
450
451 /* Make the next call work :-) */
452 if (s->session != NULL)
453 {
454 ssl_clear_bad_session(s);
455 SSL_SESSION_free(s->session);
456 }
457
458 ssl_clear_cipher_ctx(s);
459
460 if (s->cert != NULL) ssl_cert_free(s->cert);
461 /* Free up if allocated */
462
463 if (s->ctx) SSL_CTX_free(s->ctx);
464
465 if (s->client_CA != NULL)
466 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
467
468 if (s->method != NULL) s->method->ssl_free(s);
469
470 OPENSSL_free(s);
471 }
472
473void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
474 {
475 /* If the output buffering BIO is still in place, remove it
476 */
477 if (s->bbio != NULL)
478 {
479 if (s->wbio == s->bbio)
480 {
481 s->wbio=s->wbio->next_bio;
482 s->bbio->next_bio=NULL;
483 }
484 }
485 if ((s->rbio != NULL) && (s->rbio != rbio))
486 BIO_free_all(s->rbio);
487 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
488 BIO_free_all(s->wbio);
489 s->rbio=rbio;
490 s->wbio=wbio;
491 }
492
493BIO *SSL_get_rbio(SSL *s)
494 { return(s->rbio); }
495
496BIO *SSL_get_wbio(SSL *s)
497 { return(s->wbio); }
498
499int SSL_get_fd(SSL *s)
500 {
501 return(SSL_get_rfd(s));
502 }
503
504int SSL_get_rfd(SSL *s)
505 {
506 int ret= -1;
507 BIO *b,*r;
508
509 b=SSL_get_rbio(s);
510 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
511 if (r != NULL)
512 BIO_get_fd(r,&ret);
513 return(ret);
514 }
515
516int SSL_get_wfd(SSL *s)
517 {
518 int ret= -1;
519 BIO *b,*r;
520
521 b=SSL_get_wbio(s);
522 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
523 if (r != NULL)
524 BIO_get_fd(r,&ret);
525 return(ret);
526 }
527
528#ifndef OPENSSL_NO_SOCK
529int SSL_set_fd(SSL *s,int fd)
530 {
531 int ret=0;
532 BIO *bio=NULL;
533
534 bio=BIO_new(BIO_s_socket());
535
536 if (bio == NULL)
537 {
538 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
539 goto err;
540 }
541 BIO_set_fd(bio,fd,BIO_NOCLOSE);
542 SSL_set_bio(s,bio,bio);
543 ret=1;
544err:
545 return(ret);
546 }
547
548int SSL_set_wfd(SSL *s,int fd)
549 {
550 int ret=0;
551 BIO *bio=NULL;
552
553 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
554 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
555 {
556 bio=BIO_new(BIO_s_socket());
557
558 if (bio == NULL)
559 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
560 BIO_set_fd(bio,fd,BIO_NOCLOSE);
561 SSL_set_bio(s,SSL_get_rbio(s),bio);
562 }
563 else
564 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
565 ret=1;
566err:
567 return(ret);
568 }
569
570int SSL_set_rfd(SSL *s,int fd)
571 {
572 int ret=0;
573 BIO *bio=NULL;
574
575 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
576 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
577 {
578 bio=BIO_new(BIO_s_socket());
579
580 if (bio == NULL)
581 {
582 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
583 goto err;
584 }
585 BIO_set_fd(bio,fd,BIO_NOCLOSE);
586 SSL_set_bio(s,bio,SSL_get_wbio(s));
587 }
588 else
589 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
590 ret=1;
591err:
592 return(ret);
593 }
594#endif
595
596
597/* return length of latest Finished message we sent, copy to 'buf' */
598size_t SSL_get_finished(SSL *s, void *buf, size_t count)
599 {
600 size_t ret = 0;
601
602 if (s->s3 != NULL)
603 {
604 ret = s->s3->tmp.finish_md_len;
605 if (count > ret)
606 count = ret;
607 memcpy(buf, s->s3->tmp.finish_md, count);
608 }
609 return ret;
610 }
611
612/* return length of latest Finished message we expected, copy to 'buf' */
613size_t SSL_get_peer_finished(SSL *s, void *buf, size_t count)
614 {
615 size_t ret = 0;
616
617 if (s->s3 != NULL)
618 {
619 ret = s->s3->tmp.peer_finish_md_len;
620 if (count > ret)
621 count = ret;
622 memcpy(buf, s->s3->tmp.peer_finish_md, count);
623 }
624 return ret;
625 }
626
627
628int SSL_get_verify_mode(SSL *s)
629 {
630 return(s->verify_mode);
631 }
632
633int SSL_get_verify_depth(SSL *s)
634 {
635 return(s->verify_depth);
636 }
637
638int (*SSL_get_verify_callback(SSL *s))(int,X509_STORE_CTX *)
639 {
640 return(s->verify_callback);
641 }
642
643int SSL_CTX_get_verify_mode(SSL_CTX *ctx)
644 {
645 return(ctx->verify_mode);
646 }
647
648int SSL_CTX_get_verify_depth(SSL_CTX *ctx)
649 {
650 return(ctx->verify_depth);
651 }
652
653int (*SSL_CTX_get_verify_callback(SSL_CTX *ctx))(int,X509_STORE_CTX *)
654 {
655 return(ctx->default_verify_callback);
656 }
657
658void SSL_set_verify(SSL *s,int mode,
659 int (*callback)(int ok,X509_STORE_CTX *ctx))
660 {
661 s->verify_mode=mode;
662 if (callback != NULL)
663 s->verify_callback=callback;
664 }
665
666void SSL_set_verify_depth(SSL *s,int depth)
667 {
668 s->verify_depth=depth;
669 }
670
671void SSL_set_read_ahead(SSL *s,int yes)
672 {
673 s->read_ahead=yes;
674 }
675
676int SSL_get_read_ahead(SSL *s)
677 {
678 return(s->read_ahead);
679 }
680
681int SSL_pending(SSL *s)
682 {
683 /* SSL_pending cannot work properly if read-ahead is enabled
684 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
685 * and it is impossible to fix since SSL_pending cannot report
686 * errors that may be observed while scanning the new data.
687 * (Note that SSL_pending() is often used as a boolean value,
688 * so we'd better not return -1.)
689 */
690 return(s->method->ssl_pending(s));
691 }
692
693X509 *SSL_get_peer_certificate(SSL *s)
694 {
695 X509 *r;
696
697 if ((s == NULL) || (s->session == NULL))
698 r=NULL;
699 else
700 r=s->session->peer;
701
702 if (r == NULL) return(r);
703
704 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
705
706 return(r);
707 }
708
709STACK_OF(X509) *SSL_get_peer_cert_chain(SSL *s)
710 {
711 STACK_OF(X509) *r;
712
713 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
714 r=NULL;
715 else
716 r=s->session->sess_cert->cert_chain;
717
718 /* If we are a client, cert_chain includes the peer's own
719 * certificate; if we are a server, it does not. */
720
721 return(r);
722 }
723
724/* Now in theory, since the calling process own 't' it should be safe to
725 * modify. We need to be able to read f without being hassled */
726void SSL_copy_session_id(SSL *t,SSL *f)
727 {
728 CERT *tmp;
729
730 /* Do we need to to SSL locking? */
731 SSL_set_session(t,SSL_get_session(f));
732
733 /* what if we are setup as SSLv2 but want to talk SSLv3 or
734 * vice-versa */
735 if (t->method != f->method)
736 {
737 t->method->ssl_free(t); /* cleanup current */
738 t->method=f->method; /* change method */
739 t->method->ssl_new(t); /* setup new */
740 }
741
742 tmp=t->cert;
743 if (f->cert != NULL)
744 {
745 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
746 t->cert=f->cert;
747 }
748 else
749 t->cert=NULL;
750 if (tmp != NULL) ssl_cert_free(tmp);
751 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
752 }
753
754/* Fix this so it checks all the valid key/cert options */
755int SSL_CTX_check_private_key(SSL_CTX *ctx)
756 {
757 if ( (ctx == NULL) ||
758 (ctx->cert == NULL) ||
759 (ctx->cert->key->x509 == NULL))
760 {
761 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
762 return(0);
763 }
764 if (ctx->cert->key->privatekey == NULL)
765 {
766 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
767 return(0);
768 }
769 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
770 }
771
772/* Fix this function so that it takes an optional type parameter */
773int SSL_check_private_key(SSL *ssl)
774 {
775 if (ssl == NULL)
776 {
777 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
778 return(0);
779 }
780 if (ssl->cert == NULL)
781 {
782 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
783 return 0;
784 }
785 if (ssl->cert->key->x509 == NULL)
786 {
787 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
788 return(0);
789 }
790 if (ssl->cert->key->privatekey == NULL)
791 {
792 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
793 return(0);
794 }
795 return(X509_check_private_key(ssl->cert->key->x509,
796 ssl->cert->key->privatekey));
797 }
798
799int SSL_accept(SSL *s)
800 {
801 if (s->handshake_func == 0)
802 /* Not properly initialized yet */
803 SSL_set_accept_state(s);
804
805 return(s->method->ssl_accept(s));
806 }
807
808int SSL_connect(SSL *s)
809 {
810 if (s->handshake_func == 0)
811 /* Not properly initialized yet */
812 SSL_set_connect_state(s);
813
814 return(s->method->ssl_connect(s));
815 }
816
817long SSL_get_default_timeout(SSL *s)
818 {
819 return(s->method->get_timeout());
820 }
821
822int SSL_read(SSL *s,void *buf,int num)
823 {
824 if (s->handshake_func == 0)
825 {
826 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
827 return -1;
828 }
829
830 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
831 {
832 s->rwstate=SSL_NOTHING;
833 return(0);
834 }
835 return(s->method->ssl_read(s,buf,num));
836 }
837
838int SSL_peek(SSL *s,void *buf,int num)
839 {
840 if (s->handshake_func == 0)
841 {
842 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
843 return -1;
844 }
845
846 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
847 {
848 return(0);
849 }
850 return(s->method->ssl_peek(s,buf,num));
851 }
852
853int SSL_write(SSL *s,const void *buf,int num)
854 {
855 if (s->handshake_func == 0)
856 {
857 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
858 return -1;
859 }
860
861 if (s->shutdown & SSL_SENT_SHUTDOWN)
862 {
863 s->rwstate=SSL_NOTHING;
864 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
865 return(-1);
866 }
867 return(s->method->ssl_write(s,buf,num));
868 }
869
870int SSL_shutdown(SSL *s)
871 {
872 /* Note that this function behaves differently from what one might
873 * expect. Return values are 0 for no success (yet),
874 * 1 for success; but calling it once is usually not enough,
875 * even if blocking I/O is used (see ssl3_shutdown).
876 */
877
878 if (s->handshake_func == 0)
879 {
880 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
881 return -1;
882 }
883
884 if ((s != NULL) && !SSL_in_init(s))
885 return(s->method->ssl_shutdown(s));
886 else
887 return(1);
888 }
889
890int SSL_renegotiate(SSL *s)
891 {
892 if (s->new_session == 0)
893 {
894 s->new_session=1;
895 }
896 return(s->method->ssl_renegotiate(s));
897 }
898
899int SSL_renegotiate_pending(SSL *s)
900 {
901 /* becomes true when negotiation is requested;
902 * false again once a handshake has finished */
903 return (s->new_session != 0);
904 }
905
906long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
907 {
908 long l;
909
910 switch (cmd)
911 {
912 case SSL_CTRL_GET_READ_AHEAD:
913 return(s->read_ahead);
914 case SSL_CTRL_SET_READ_AHEAD:
915 l=s->read_ahead;
916 s->read_ahead=larg;
917 return(l);
918
919 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
920 s->msg_callback_arg = parg;
921 return 1;
922
923 case SSL_CTRL_OPTIONS:
924 return(s->options|=larg);
925 case SSL_CTRL_MODE:
926 return(s->mode|=larg);
927 case SSL_CTRL_GET_MAX_CERT_LIST:
928 return(s->max_cert_list);
929 case SSL_CTRL_SET_MAX_CERT_LIST:
930 l=s->max_cert_list;
931 s->max_cert_list=larg;
932 return(l);
933 default:
934 return(s->method->ssl_ctrl(s,cmd,larg,parg));
935 }
936 }
937
938long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)())
939 {
940 switch(cmd)
941 {
942 case SSL_CTRL_SET_MSG_CALLBACK:
943 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
944 return 1;
945
946 default:
947 return(s->method->ssl_callback_ctrl(s,cmd,fp));
948 }
949 }
950
951struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
952 {
953 return ctx->sessions;
954 }
955
956long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
957 {
958 long l;
959
960 switch (cmd)
961 {
962 case SSL_CTRL_GET_READ_AHEAD:
963 return(ctx->read_ahead);
964 case SSL_CTRL_SET_READ_AHEAD:
965 l=ctx->read_ahead;
966 ctx->read_ahead=larg;
967 return(l);
968
969 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
970 ctx->msg_callback_arg = parg;
971 return 1;
972
973 case SSL_CTRL_GET_MAX_CERT_LIST:
974 return(ctx->max_cert_list);
975 case SSL_CTRL_SET_MAX_CERT_LIST:
976 l=ctx->max_cert_list;
977 ctx->max_cert_list=larg;
978 return(l);
979
980 case SSL_CTRL_SET_SESS_CACHE_SIZE:
981 l=ctx->session_cache_size;
982 ctx->session_cache_size=larg;
983 return(l);
984 case SSL_CTRL_GET_SESS_CACHE_SIZE:
985 return(ctx->session_cache_size);
986 case SSL_CTRL_SET_SESS_CACHE_MODE:
987 l=ctx->session_cache_mode;
988 ctx->session_cache_mode=larg;
989 return(l);
990 case SSL_CTRL_GET_SESS_CACHE_MODE:
991 return(ctx->session_cache_mode);
992
993 case SSL_CTRL_SESS_NUMBER:
994 return(ctx->sessions->num_items);
995 case SSL_CTRL_SESS_CONNECT:
996 return(ctx->stats.sess_connect);
997 case SSL_CTRL_SESS_CONNECT_GOOD:
998 return(ctx->stats.sess_connect_good);
999 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1000 return(ctx->stats.sess_connect_renegotiate);
1001 case SSL_CTRL_SESS_ACCEPT:
1002 return(ctx->stats.sess_accept);
1003 case SSL_CTRL_SESS_ACCEPT_GOOD:
1004 return(ctx->stats.sess_accept_good);
1005 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1006 return(ctx->stats.sess_accept_renegotiate);
1007 case SSL_CTRL_SESS_HIT:
1008 return(ctx->stats.sess_hit);
1009 case SSL_CTRL_SESS_CB_HIT:
1010 return(ctx->stats.sess_cb_hit);
1011 case SSL_CTRL_SESS_MISSES:
1012 return(ctx->stats.sess_miss);
1013 case SSL_CTRL_SESS_TIMEOUTS:
1014 return(ctx->stats.sess_timeout);
1015 case SSL_CTRL_SESS_CACHE_FULL:
1016 return(ctx->stats.sess_cache_full);
1017 case SSL_CTRL_OPTIONS:
1018 return(ctx->options|=larg);
1019 case SSL_CTRL_MODE:
1020 return(ctx->mode|=larg);
1021 default:
1022 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1023 }
1024 }
1025
1026long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)())
1027 {
1028 switch(cmd)
1029 {
1030 case SSL_CTRL_SET_MSG_CALLBACK:
1031 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1032 return 1;
1033
1034 default:
1035 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1036 }
1037 }
1038
1039int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1040 {
1041 long l;
1042
1043 l=a->id-b->id;
1044 if (l == 0L)
1045 return(0);
1046 else
1047 return((l > 0)?1:-1);
1048 }
1049
1050int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1051 const SSL_CIPHER * const *bp)
1052 {
1053 long l;
1054
1055 l=(*ap)->id-(*bp)->id;
1056 if (l == 0L)
1057 return(0);
1058 else
1059 return((l > 0)?1:-1);
1060 }
1061
1062/** return a STACK of the ciphers available for the SSL and in order of
1063 * preference */
1064STACK_OF(SSL_CIPHER) *SSL_get_ciphers(SSL *s)
1065 {
1066 if ((s != NULL) && (s->cipher_list != NULL))
1067 {
1068 return(s->cipher_list);
1069 }
1070 else if ((s->ctx != NULL) &&
1071 (s->ctx->cipher_list != NULL))
1072 {
1073 return(s->ctx->cipher_list);
1074 }
1075 return(NULL);
1076 }
1077
1078/** return a STACK of the ciphers available for the SSL and in order of
1079 * algorithm id */
1080STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1081 {
1082 if ((s != NULL) && (s->cipher_list_by_id != NULL))
1083 {
1084 return(s->cipher_list_by_id);
1085 }
1086 else if ((s != NULL) && (s->ctx != NULL) &&
1087 (s->ctx->cipher_list_by_id != NULL))
1088 {
1089 return(s->ctx->cipher_list_by_id);
1090 }
1091 return(NULL);
1092 }
1093
1094/** The old interface to get the same thing as SSL_get_ciphers() */
1095const char *SSL_get_cipher_list(SSL *s,int n)
1096 {
1097 SSL_CIPHER *c;
1098 STACK_OF(SSL_CIPHER) *sk;
1099
1100 if (s == NULL) return(NULL);
1101 sk=SSL_get_ciphers(s);
1102 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1103 return(NULL);
1104 c=sk_SSL_CIPHER_value(sk,n);
1105 if (c == NULL) return(NULL);
1106 return(c->name);
1107 }
1108
1109/** specify the ciphers to be used by default by the SSL_CTX */
1110int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1111 {
1112 STACK_OF(SSL_CIPHER) *sk;
1113
1114 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1115 &ctx->cipher_list_by_id,str);
1116/* XXXX */
1117 return((sk == NULL)?0:1);
1118 }
1119
1120/** specify the ciphers to be used by the SSL */
1121int SSL_set_cipher_list(SSL *s,const char *str)
1122 {
1123 STACK_OF(SSL_CIPHER) *sk;
1124
1125 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1126 &s->cipher_list_by_id,str);
1127/* XXXX */
1128 return((sk == NULL)?0:1);
1129 }
1130
1131/* works well for SSLv2, not so good for SSLv3 */
1132char *SSL_get_shared_ciphers(SSL *s,char *buf,int len)
1133 {
1134 char *p;
1135 const char *cp;
1136 STACK_OF(SSL_CIPHER) *sk;
1137 SSL_CIPHER *c;
1138 int i;
1139
1140 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1141 (len < 2))
1142 return(NULL);
1143
1144 p=buf;
1145 sk=s->session->ciphers;
1146 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1147 {
1148 /* Decrement for either the ':' or a '\0' */
1149 len--;
1150 c=sk_SSL_CIPHER_value(sk,i);
1151 for (cp=c->name; *cp; )
1152 {
1153 if (len-- == 0)
1154 {
1155 *p='\0';
1156 return(buf);
1157 }
1158 else
1159 *(p++)= *(cp++);
1160 }
1161 *(p++)=':';
1162 }
1163 p[-1]='\0';
1164 return(buf);
1165 }
1166
1167int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p)
1168 {
1169 int i,j=0;
1170 SSL_CIPHER *c;
1171 unsigned char *q;
1172#ifndef OPENSSL_NO_KRB5
1173 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx);
1174#endif /* OPENSSL_NO_KRB5 */
1175
1176 if (sk == NULL) return(0);
1177 q=p;
1178
1179 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1180 {
1181 c=sk_SSL_CIPHER_value(sk,i);
1182#ifndef OPENSSL_NO_KRB5
1183 if ((c->algorithms & SSL_KRB5) && nokrb5)
1184 continue;
1185#endif /* OPENSSL_NO_KRB5 */
1186 j=ssl_put_cipher_by_char(s,c,p);
1187 p+=j;
1188 }
1189 return(p-q);
1190 }
1191
1192STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1193 STACK_OF(SSL_CIPHER) **skp)
1194 {
1195 SSL_CIPHER *c;
1196 STACK_OF(SSL_CIPHER) *sk;
1197 int i,n;
1198
1199 n=ssl_put_cipher_by_char(s,NULL,NULL);
1200 if ((num%n) != 0)
1201 {
1202 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1203 return(NULL);
1204 }
1205 if ((skp == NULL) || (*skp == NULL))
1206 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1207 else
1208 {
1209 sk= *skp;
1210 sk_SSL_CIPHER_zero(sk);
1211 }
1212
1213 for (i=0; i<num; i+=n)
1214 {
1215 c=ssl_get_cipher_by_char(s,p);
1216 p+=n;
1217 if (c != NULL)
1218 {
1219 if (!sk_SSL_CIPHER_push(sk,c))
1220 {
1221 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1222 goto err;
1223 }
1224 }
1225 }
1226
1227 if (skp != NULL)
1228 *skp=sk;
1229 return(sk);
1230err:
1231 if ((skp == NULL) || (*skp == NULL))
1232 sk_SSL_CIPHER_free(sk);
1233 return(NULL);
1234 }
1235
1236unsigned long SSL_SESSION_hash(SSL_SESSION *a)
1237 {
1238 unsigned long l;
1239
1240 l=(unsigned long)
1241 ((unsigned int) a->session_id[0] )|
1242 ((unsigned int) a->session_id[1]<< 8L)|
1243 ((unsigned long)a->session_id[2]<<16L)|
1244 ((unsigned long)a->session_id[3]<<24L);
1245 return(l);
1246 }
1247
1248/* NB: If this function (or indeed the hash function which uses a sort of
1249 * coarser function than this one) is changed, ensure
1250 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1251 * able to construct an SSL_SESSION that will collide with any existing session
1252 * with a matching session ID. */
1253int SSL_SESSION_cmp(SSL_SESSION *a,SSL_SESSION *b)
1254 {
1255 if (a->ssl_version != b->ssl_version)
1256 return(1);
1257 if (a->session_id_length != b->session_id_length)
1258 return(1);
1259 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1260 }
1261
1262/* These wrapper functions should remain rather than redeclaring
1263 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1264 * variable. The reason is that the functions aren't static, they're exposed via
1265 * ssl.h. */
1266static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash, SSL_SESSION *)
1267static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp, SSL_SESSION *)
1268
1269SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1270 {
1271 SSL_CTX *ret=NULL;
1272
1273 if (meth == NULL)
1274 {
1275 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1276 return(NULL);
1277 }
1278
1279 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1280 {
1281 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1282 goto err;
1283 }
1284 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1285 if (ret == NULL)
1286 goto err;
1287
1288 memset(ret,0,sizeof(SSL_CTX));
1289
1290 ret->method=meth;
1291
1292 ret->cert_store=NULL;
1293 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1294 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1295 ret->session_cache_head=NULL;
1296 ret->session_cache_tail=NULL;
1297
1298 /* We take the system default */
1299 ret->session_timeout=meth->get_timeout();
1300
1301 ret->new_session_cb=0;
1302 ret->remove_session_cb=0;
1303 ret->get_session_cb=0;
1304 ret->generate_session_id=0;
1305
1306 memset((char *)&ret->stats,0,sizeof(ret->stats));
1307
1308 ret->references=1;
1309 ret->quiet_shutdown=0;
1310
1311/* ret->cipher=NULL;*/
1312/* ret->s2->challenge=NULL;
1313 ret->master_key=NULL;
1314 ret->key_arg=NULL;
1315 ret->s2->conn_id=NULL; */
1316
1317 ret->info_callback=NULL;
1318
1319 ret->app_verify_callback=0;
1320 ret->app_verify_arg=NULL;
1321
1322 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1323 ret->read_ahead=0;
1324 ret->msg_callback=0;
1325 ret->msg_callback_arg=NULL;
1326 ret->verify_mode=SSL_VERIFY_NONE;
1327 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1328 ret->sid_ctx_length=0;
1329 ret->default_verify_callback=NULL;
1330 if ((ret->cert=ssl_cert_new()) == NULL)
1331 goto err;
1332
1333 ret->default_passwd_callback=0;
1334 ret->default_passwd_callback_userdata=NULL;
1335 ret->client_cert_cb=0;
1336
1337 ret->sessions=lh_new(LHASH_HASH_FN(SSL_SESSION_hash),
1338 LHASH_COMP_FN(SSL_SESSION_cmp));
1339 if (ret->sessions == NULL) goto err;
1340 ret->cert_store=X509_STORE_new();
1341 if (ret->cert_store == NULL) goto err;
1342
1343 ssl_create_cipher_list(ret->method,
1344 &ret->cipher_list,&ret->cipher_list_by_id,
1345 SSL_DEFAULT_CIPHER_LIST);
1346 if (ret->cipher_list == NULL
1347 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1348 {
1349 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1350 goto err2;
1351 }
1352
1353 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1354 {
1355 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1356 goto err2;
1357 }
1358 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1359 {
1360 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1361 goto err2;
1362 }
1363 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1364 {
1365 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1366 goto err2;
1367 }
1368
1369 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1370 goto err;
1371
1372 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1373
1374 ret->extra_certs=NULL;
1375 ret->comp_methods=SSL_COMP_get_compression_methods();
1376
1377 return(ret);
1378err:
1379 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1380err2:
1381 if (ret != NULL) SSL_CTX_free(ret);
1382 return(NULL);
1383 }
1384
1385#if 0
1386static void SSL_COMP_free(SSL_COMP *comp)
1387 { OPENSSL_free(comp); }
1388#endif
1389
1390void SSL_CTX_free(SSL_CTX *a)
1391 {
1392 int i;
1393
1394 if (a == NULL) return;
1395
1396 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1397#ifdef REF_PRINT
1398 REF_PRINT("SSL_CTX",a);
1399#endif
1400 if (i > 0) return;
1401#ifdef REF_CHECK
1402 if (i < 0)
1403 {
1404 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1405 abort(); /* ok */
1406 }
1407#endif
1408
1409 /*
1410 * Free internal session cache. However: the remove_cb() may reference
1411 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1412 * after the sessions were flushed.
1413 * As the ex_data handling routines might also touch the session cache,
1414 * the most secure solution seems to be: empty (flush) the cache, then
1415 * free ex_data, then finally free the cache.
1416 * (See ticket [openssl.org #212].)
1417 */
1418 if (a->sessions != NULL)
1419 SSL_CTX_flush_sessions(a,0);
1420
1421 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1422
1423 if (a->sessions != NULL)
1424 lh_free(a->sessions);
1425
1426 if (a->cert_store != NULL)
1427 X509_STORE_free(a->cert_store);
1428 if (a->cipher_list != NULL)
1429 sk_SSL_CIPHER_free(a->cipher_list);
1430 if (a->cipher_list_by_id != NULL)
1431 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1432 if (a->cert != NULL)
1433 ssl_cert_free(a->cert);
1434 if (a->client_CA != NULL)
1435 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1436 if (a->extra_certs != NULL)
1437 sk_X509_pop_free(a->extra_certs,X509_free);
1438#if 0 /* This should never be done, since it removes a global database */
1439 if (a->comp_methods != NULL)
1440 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1441#else
1442 a->comp_methods = NULL;
1443#endif
1444 OPENSSL_free(a);
1445 }
1446
1447void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1448 {
1449 ctx->default_passwd_callback=cb;
1450 }
1451
1452void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1453 {
1454 ctx->default_passwd_callback_userdata=u;
1455 }
1456
1457void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
1458 {
1459 ctx->app_verify_callback=cb;
1460 ctx->app_verify_arg=arg;
1461 }
1462
1463void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1464 {
1465 ctx->verify_mode=mode;
1466 ctx->default_verify_callback=cb;
1467 }
1468
1469void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1470 {
1471 ctx->verify_depth=depth;
1472 }
1473
1474void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1475 {
1476 CERT_PKEY *cpk;
1477 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1478 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1479 int rsa_tmp_export,dh_tmp_export,kl;
1480 unsigned long mask,emask;
1481
1482 if (c == NULL) return;
1483
1484 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1485
1486#ifndef OPENSSL_NO_RSA
1487 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1488 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1489 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1490#else
1491 rsa_tmp=rsa_tmp_export=0;
1492#endif
1493#ifndef OPENSSL_NO_DH
1494 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1495 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1496 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1497#else
1498 dh_tmp=dh_tmp_export=0;
1499#endif
1500
1501 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1502 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1503 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1504 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1505 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1506 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1507 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1508 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1509 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1510 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1511 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1512/* FIX THIS EAY EAY EAY */
1513 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1514 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1515
1516 mask=0;
1517 emask=0;
1518
1519#ifdef CIPHER_DEBUG
1520 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1521 rsa_tmp,rsa_tmp_export,dh_tmp,
1522 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1523#endif
1524
1525 if (rsa_enc || (rsa_tmp && rsa_sign))
1526 mask|=SSL_kRSA;
1527 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1528 emask|=SSL_kRSA;
1529
1530#if 0
1531 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1532 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1533 (rsa_enc || rsa_sign || dsa_sign))
1534 mask|=SSL_kEDH;
1535 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1536 (rsa_enc || rsa_sign || dsa_sign))
1537 emask|=SSL_kEDH;
1538#endif
1539
1540 if (dh_tmp_export)
1541 emask|=SSL_kEDH;
1542
1543 if (dh_tmp)
1544 mask|=SSL_kEDH;
1545
1546 if (dh_rsa) mask|=SSL_kDHr;
1547 if (dh_rsa_export) emask|=SSL_kDHr;
1548
1549 if (dh_dsa) mask|=SSL_kDHd;
1550 if (dh_dsa_export) emask|=SSL_kDHd;
1551
1552 if (rsa_enc || rsa_sign)
1553 {
1554 mask|=SSL_aRSA;
1555 emask|=SSL_aRSA;
1556 }
1557
1558 if (dsa_sign)
1559 {
1560 mask|=SSL_aDSS;
1561 emask|=SSL_aDSS;
1562 }
1563
1564 mask|=SSL_aNULL;
1565 emask|=SSL_aNULL;
1566
1567#ifndef OPENSSL_NO_KRB5
1568 mask|=SSL_kKRB5|SSL_aKRB5;
1569 emask|=SSL_kKRB5|SSL_aKRB5;
1570#endif
1571
1572 c->mask=mask;
1573 c->export_mask=emask;
1574 c->valid=1;
1575 }
1576
1577/* THIS NEEDS CLEANING UP */
1578X509 *ssl_get_server_send_cert(SSL *s)
1579 {
1580 unsigned long alg,mask,kalg;
1581 CERT *c;
1582 int i,is_export;
1583
1584 c=s->cert;
1585 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1586 alg=s->s3->tmp.new_cipher->algorithms;
1587 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1588 mask=is_export?c->export_mask:c->mask;
1589 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1590
1591 if (kalg & SSL_kDHr)
1592 i=SSL_PKEY_DH_RSA;
1593 else if (kalg & SSL_kDHd)
1594 i=SSL_PKEY_DH_DSA;
1595 else if (kalg & SSL_aDSS)
1596 i=SSL_PKEY_DSA_SIGN;
1597 else if (kalg & SSL_aRSA)
1598 {
1599 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1600 i=SSL_PKEY_RSA_SIGN;
1601 else
1602 i=SSL_PKEY_RSA_ENC;
1603 }
1604 else if (kalg & SSL_aKRB5)
1605 {
1606 /* VRS something else here? */
1607 return(NULL);
1608 }
1609 else /* if (kalg & SSL_aNULL) */
1610 {
1611 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR);
1612 return(NULL);
1613 }
1614 if (c->pkeys[i].x509 == NULL) return(NULL);
1615 return(c->pkeys[i].x509);
1616 }
1617
1618EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1619 {
1620 unsigned long alg;
1621 CERT *c;
1622
1623 alg=cipher->algorithms;
1624 c=s->cert;
1625
1626 if ((alg & SSL_aDSS) &&
1627 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1628 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1629 else if (alg & SSL_aRSA)
1630 {
1631 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1632 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1633 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1634 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1635 else
1636 return(NULL);
1637 }
1638 else /* if (alg & SSL_aNULL) */
1639 {
1640 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
1641 return(NULL);
1642 }
1643 }
1644
1645void ssl_update_cache(SSL *s,int mode)
1646 {
1647 int i;
1648
1649 /* If the session_id_length is 0, we are not supposed to cache it,
1650 * and it would be rather hard to do anyway :-) */
1651 if (s->session->session_id_length == 0) return;
1652
1653 i=s->ctx->session_cache_mode;
1654 if ((i & mode) && (!s->hit)
1655 && ((i & SSL_SESS_CACHE_NO_INTERNAL_LOOKUP)
1656 || SSL_CTX_add_session(s->ctx,s->session))
1657 && (s->ctx->new_session_cb != NULL))
1658 {
1659 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1660 if (!s->ctx->new_session_cb(s,s->session))
1661 SSL_SESSION_free(s->session);
1662 }
1663
1664 /* auto flush every 255 connections */
1665 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1666 ((i & mode) == mode))
1667 {
1668 if ( (((mode & SSL_SESS_CACHE_CLIENT)
1669 ?s->ctx->stats.sess_connect_good
1670 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1671 {
1672 SSL_CTX_flush_sessions(s->ctx,time(NULL));
1673 }
1674 }
1675 }
1676
1677SSL_METHOD *SSL_get_ssl_method(SSL *s)
1678 {
1679 return(s->method);
1680 }
1681
1682int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1683 {
1684 int conn= -1;
1685 int ret=1;
1686
1687 if (s->method != meth)
1688 {
1689 if (s->handshake_func != NULL)
1690 conn=(s->handshake_func == s->method->ssl_connect);
1691
1692 if (s->method->version == meth->version)
1693 s->method=meth;
1694 else
1695 {
1696 s->method->ssl_free(s);
1697 s->method=meth;
1698 ret=s->method->ssl_new(s);
1699 }
1700
1701 if (conn == 1)
1702 s->handshake_func=meth->ssl_connect;
1703 else if (conn == 0)
1704 s->handshake_func=meth->ssl_accept;
1705 }
1706 return(ret);
1707 }
1708
1709int SSL_get_error(SSL *s,int i)
1710 {
1711 int reason;
1712 unsigned long l;
1713 BIO *bio;
1714
1715 if (i > 0) return(SSL_ERROR_NONE);
1716
1717 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1718 * etc, where we do encode the error */
1719 if ((l=ERR_peek_error()) != 0)
1720 {
1721 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1722 return(SSL_ERROR_SYSCALL);
1723 else
1724 return(SSL_ERROR_SSL);
1725 }
1726
1727 if ((i < 0) && SSL_want_read(s))
1728 {
1729 bio=SSL_get_rbio(s);
1730 if (BIO_should_read(bio))
1731 return(SSL_ERROR_WANT_READ);
1732 else if (BIO_should_write(bio))
1733 /* This one doesn't make too much sense ... We never try
1734 * to write to the rbio, and an application program where
1735 * rbio and wbio are separate couldn't even know what it
1736 * should wait for.
1737 * However if we ever set s->rwstate incorrectly
1738 * (so that we have SSL_want_read(s) instead of
1739 * SSL_want_write(s)) and rbio and wbio *are* the same,
1740 * this test works around that bug; so it might be safer
1741 * to keep it. */
1742 return(SSL_ERROR_WANT_WRITE);
1743 else if (BIO_should_io_special(bio))
1744 {
1745 reason=BIO_get_retry_reason(bio);
1746 if (reason == BIO_RR_CONNECT)
1747 return(SSL_ERROR_WANT_CONNECT);
1748 else if (reason == BIO_RR_ACCEPT)
1749 return(SSL_ERROR_WANT_ACCEPT);
1750 else
1751 return(SSL_ERROR_SYSCALL); /* unknown */
1752 }
1753 }
1754
1755 if ((i < 0) && SSL_want_write(s))
1756 {
1757 bio=SSL_get_wbio(s);
1758 if (BIO_should_write(bio))
1759 return(SSL_ERROR_WANT_WRITE);
1760 else if (BIO_should_read(bio))
1761 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1762 return(SSL_ERROR_WANT_READ);
1763 else if (BIO_should_io_special(bio))
1764 {
1765 reason=BIO_get_retry_reason(bio);
1766 if (reason == BIO_RR_CONNECT)
1767 return(SSL_ERROR_WANT_CONNECT);
1768 else if (reason == BIO_RR_ACCEPT)
1769 return(SSL_ERROR_WANT_ACCEPT);
1770 else
1771 return(SSL_ERROR_SYSCALL);
1772 }
1773 }
1774 if ((i < 0) && SSL_want_x509_lookup(s))
1775 {
1776 return(SSL_ERROR_WANT_X509_LOOKUP);
1777 }
1778
1779 if (i == 0)
1780 {
1781 if (s->version == SSL2_VERSION)
1782 {
1783 /* assume it is the socket being closed */
1784 return(SSL_ERROR_ZERO_RETURN);
1785 }
1786 else
1787 {
1788 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
1789 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
1790 return(SSL_ERROR_ZERO_RETURN);
1791 }
1792 }
1793 return(SSL_ERROR_SYSCALL);
1794 }
1795
1796int SSL_do_handshake(SSL *s)
1797 {
1798 int ret=1;
1799
1800 if (s->handshake_func == NULL)
1801 {
1802 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
1803 return(-1);
1804 }
1805
1806 s->method->ssl_renegotiate_check(s);
1807
1808 if (SSL_in_init(s) || SSL_in_before(s))
1809 {
1810 ret=s->handshake_func(s);
1811 }
1812 return(ret);
1813 }
1814
1815/* For the next 2 functions, SSL_clear() sets shutdown and so
1816 * one of these calls will reset it */
1817void SSL_set_accept_state(SSL *s)
1818 {
1819 s->server=1;
1820 s->shutdown=0;
1821 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
1822 s->handshake_func=s->method->ssl_accept;
1823 /* clear the current cipher */
1824 ssl_clear_cipher_ctx(s);
1825 }
1826
1827void SSL_set_connect_state(SSL *s)
1828 {
1829 s->server=0;
1830 s->shutdown=0;
1831 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
1832 s->handshake_func=s->method->ssl_connect;
1833 /* clear the current cipher */
1834 ssl_clear_cipher_ctx(s);
1835 }
1836
1837int ssl_undefined_function(SSL *s)
1838 {
1839 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1840 return(0);
1841 }
1842
1843SSL_METHOD *ssl_bad_method(int ver)
1844 {
1845 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1846 return(NULL);
1847 }
1848
1849const char *SSL_get_version(SSL *s)
1850 {
1851 if (s->version == TLS1_VERSION)
1852 return("TLSv1");
1853 else if (s->version == SSL3_VERSION)
1854 return("SSLv3");
1855 else if (s->version == SSL2_VERSION)
1856 return("SSLv2");
1857 else
1858 return("unknown");
1859 }
1860
1861SSL *SSL_dup(SSL *s)
1862 {
1863 STACK_OF(X509_NAME) *sk;
1864 X509_NAME *xn;
1865 SSL *ret;
1866 int i;
1867
1868 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
1869 return(NULL);
1870
1871 ret->version = s->version;
1872 ret->type = s->type;
1873 ret->method = s->method;
1874
1875 if (s->session != NULL)
1876 {
1877 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
1878 SSL_copy_session_id(ret,s);
1879 }
1880 else
1881 {
1882 /* No session has been established yet, so we have to expect
1883 * that s->cert or ret->cert will be changed later --
1884 * they should not both point to the same object,
1885 * and thus we can't use SSL_copy_session_id. */
1886
1887 ret->method = s->method;
1888 ret->method->ssl_new(ret);
1889
1890 if (s->cert != NULL)
1891 {
1892 if (ret->cert != NULL)
1893 {
1894 ssl_cert_free(ret->cert);
1895 }
1896 ret->cert = ssl_cert_dup(s->cert);
1897 if (ret->cert == NULL)
1898 goto err;
1899 }
1900
1901 SSL_set_session_id_context(ret,
1902 s->sid_ctx, s->sid_ctx_length);
1903 }
1904
1905 ret->options=s->options;
1906 ret->mode=s->mode;
1907 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
1908 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
1909 ret->msg_callback = s->msg_callback;
1910 ret->msg_callback_arg = s->msg_callback_arg;
1911 SSL_set_verify(ret,SSL_get_verify_mode(s),
1912 SSL_get_verify_callback(s));
1913 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
1914 ret->generate_session_id = s->generate_session_id;
1915
1916 SSL_set_info_callback(ret,SSL_get_info_callback(s));
1917
1918 ret->debug=s->debug;
1919
1920 /* copy app data, a little dangerous perhaps */
1921 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
1922 goto err;
1923
1924 /* setup rbio, and wbio */
1925 if (s->rbio != NULL)
1926 {
1927 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
1928 goto err;
1929 }
1930 if (s->wbio != NULL)
1931 {
1932 if (s->wbio != s->rbio)
1933 {
1934 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
1935 goto err;
1936 }
1937 else
1938 ret->wbio=ret->rbio;
1939 }
1940 ret->rwstate = s->rwstate;
1941 ret->in_handshake = s->in_handshake;
1942 ret->handshake_func = s->handshake_func;
1943 ret->server = s->server;
1944 ret->new_session = s->new_session;
1945 ret->quiet_shutdown = s->quiet_shutdown;
1946 ret->shutdown=s->shutdown;
1947 ret->state=s->state; /* SSL_dup does not really work at any state, though */
1948 ret->rstate=s->rstate;
1949 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
1950 ret->hit=s->hit;
1951 ret->purpose=s->purpose;
1952 ret->trust=s->trust;
1953
1954 /* dup the cipher_list and cipher_list_by_id stacks */
1955 if (s->cipher_list != NULL)
1956 {
1957 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
1958 goto err;
1959 }
1960 if (s->cipher_list_by_id != NULL)
1961 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
1962 == NULL)
1963 goto err;
1964
1965 /* Dup the client_CA list */
1966 if (s->client_CA != NULL)
1967 {
1968 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
1969 ret->client_CA=sk;
1970 for (i=0; i<sk_X509_NAME_num(sk); i++)
1971 {
1972 xn=sk_X509_NAME_value(sk,i);
1973 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
1974 {
1975 X509_NAME_free(xn);
1976 goto err;
1977 }
1978 }
1979 }
1980
1981 if (0)
1982 {
1983err:
1984 if (ret != NULL) SSL_free(ret);
1985 ret=NULL;
1986 }
1987 return(ret);
1988 }
1989
1990void ssl_clear_cipher_ctx(SSL *s)
1991 {
1992 if (s->enc_read_ctx != NULL)
1993 {
1994 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
1995 OPENSSL_free(s->enc_read_ctx);
1996 s->enc_read_ctx=NULL;
1997 }
1998 if (s->enc_write_ctx != NULL)
1999 {
2000 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2001 OPENSSL_free(s->enc_write_ctx);
2002 s->enc_write_ctx=NULL;
2003 }
2004 if (s->expand != NULL)
2005 {
2006 COMP_CTX_free(s->expand);
2007 s->expand=NULL;
2008 }
2009 if (s->compress != NULL)
2010 {
2011 COMP_CTX_free(s->compress);
2012 s->compress=NULL;
2013 }
2014 }
2015
2016/* Fix this function so that it takes an optional type parameter */
2017X509 *SSL_get_certificate(SSL *s)
2018 {
2019 if (s->cert != NULL)
2020 return(s->cert->key->x509);
2021 else
2022 return(NULL);
2023 }
2024
2025/* Fix this function so that it takes an optional type parameter */
2026EVP_PKEY *SSL_get_privatekey(SSL *s)
2027 {
2028 if (s->cert != NULL)
2029 return(s->cert->key->privatekey);
2030 else
2031 return(NULL);
2032 }
2033
2034SSL_CIPHER *SSL_get_current_cipher(SSL *s)
2035 {
2036 if ((s->session != NULL) && (s->session->cipher != NULL))
2037 return(s->session->cipher);
2038 return(NULL);
2039 }
2040
2041int ssl_init_wbio_buffer(SSL *s,int push)
2042 {
2043 BIO *bbio;
2044
2045 if (s->bbio == NULL)
2046 {
2047 bbio=BIO_new(BIO_f_buffer());
2048 if (bbio == NULL) return(0);
2049 s->bbio=bbio;
2050 }
2051 else
2052 {
2053 bbio=s->bbio;
2054 if (s->bbio == s->wbio)
2055 s->wbio=BIO_pop(s->wbio);
2056 }
2057 (void)BIO_reset(bbio);
2058/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2059 if (!BIO_set_read_buffer_size(bbio,1))
2060 {
2061 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
2062 return(0);
2063 }
2064 if (push)
2065 {
2066 if (s->wbio != bbio)
2067 s->wbio=BIO_push(bbio,s->wbio);
2068 }
2069 else
2070 {
2071 if (s->wbio == bbio)
2072 s->wbio=BIO_pop(bbio);
2073 }
2074 return(1);
2075 }
2076
2077void ssl_free_wbio_buffer(SSL *s)
2078 {
2079 if (s->bbio == NULL) return;
2080
2081 if (s->bbio == s->wbio)
2082 {
2083 /* remove buffering */
2084 s->wbio=BIO_pop(s->wbio);
2085#ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2086 assert(s->wbio != NULL);
2087#endif
2088 }
2089 BIO_free(s->bbio);
2090 s->bbio=NULL;
2091 }
2092
2093void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
2094 {
2095 ctx->quiet_shutdown=mode;
2096 }
2097
2098int SSL_CTX_get_quiet_shutdown(SSL_CTX *ctx)
2099 {
2100 return(ctx->quiet_shutdown);
2101 }
2102
2103void SSL_set_quiet_shutdown(SSL *s,int mode)
2104 {
2105 s->quiet_shutdown=mode;
2106 }
2107
2108int SSL_get_quiet_shutdown(SSL *s)
2109 {
2110 return(s->quiet_shutdown);
2111 }
2112
2113void SSL_set_shutdown(SSL *s,int mode)
2114 {
2115 s->shutdown=mode;
2116 }
2117
2118int SSL_get_shutdown(SSL *s)
2119 {
2120 return(s->shutdown);
2121 }
2122
2123int SSL_version(SSL *s)
2124 {
2125 return(s->version);
2126 }
2127
2128SSL_CTX *SSL_get_SSL_CTX(SSL *ssl)
2129 {
2130 return(ssl->ctx);
2131 }
2132
2133#ifndef OPENSSL_NO_STDIO
2134int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2135 {
2136 return(X509_STORE_set_default_paths(ctx->cert_store));
2137 }
2138
2139int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2140 const char *CApath)
2141 {
2142 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
2143 }
2144#endif
2145
2146void SSL_set_info_callback(SSL *ssl,
2147 void (*cb)(const SSL *ssl,int type,int val))
2148 {
2149 ssl->info_callback=cb;
2150 }
2151
2152void (*SSL_get_info_callback(SSL *ssl))(const SSL *ssl,int type,int val)
2153 {
2154 return ssl->info_callback;
2155 }
2156
2157int SSL_state(SSL *ssl)
2158 {
2159 return(ssl->state);
2160 }
2161
2162void SSL_set_verify_result(SSL *ssl,long arg)
2163 {
2164 ssl->verify_result=arg;
2165 }
2166
2167long SSL_get_verify_result(SSL *ssl)
2168 {
2169 return(ssl->verify_result);
2170 }
2171
2172int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2173 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2174 {
2175 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2176 new_func, dup_func, free_func);
2177 }
2178
2179int SSL_set_ex_data(SSL *s,int idx,void *arg)
2180 {
2181 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2182 }
2183
2184void *SSL_get_ex_data(SSL *s,int idx)
2185 {
2186 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2187 }
2188
2189int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2190 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2191 {
2192 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2193 new_func, dup_func, free_func);
2194 }
2195
2196int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
2197 {
2198 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2199 }
2200
2201void *SSL_CTX_get_ex_data(SSL_CTX *s,int idx)
2202 {
2203 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2204 }
2205
2206int ssl_ok(SSL *s)
2207 {
2208 return(1);
2209 }
2210
2211X509_STORE *SSL_CTX_get_cert_store(SSL_CTX *ctx)
2212 {
2213 return(ctx->cert_store);
2214 }
2215
2216void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
2217 {
2218 if (ctx->cert_store != NULL)
2219 X509_STORE_free(ctx->cert_store);
2220 ctx->cert_store=store;
2221 }
2222
2223int SSL_want(SSL *s)
2224 {
2225 return(s->rwstate);
2226 }
2227
2228/*!
2229 * \brief Set the callback for generating temporary RSA keys.
2230 * \param ctx the SSL context.
2231 * \param cb the callback
2232 */
2233
2234#ifndef OPENSSL_NO_RSA
2235void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2236 int is_export,
2237 int keylength))
2238 {
2239 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2240 }
2241
2242void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2243 int is_export,
2244 int keylength))
2245 {
2246 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)())cb);
2247 }
2248#endif
2249
2250#ifdef DOXYGEN
2251/*!
2252 * \brief The RSA temporary key callback function.
2253 * \param ssl the SSL session.
2254 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2255 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2256 * of the required key in bits.
2257 * \return the temporary RSA key.
2258 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2259 */
2260
2261RSA *cb(SSL *ssl,int is_export,int keylength)
2262 {}
2263#endif
2264
2265/*!
2266 * \brief Set the callback for generating temporary DH keys.
2267 * \param ctx the SSL context.
2268 * \param dh the callback
2269 */
2270
2271#ifndef OPENSSL_NO_DH
2272void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2273 int keylength))
2274 {
2275 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2276 }
2277
2278void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2279 int keylength))
2280 {
2281 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)())dh);
2282 }
2283#endif
2284
2285
2286void SSL_CTX_set_msg_callback(SSL_CTX *ctx, void (*cb)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))
2287 {
2288 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)())cb);
2289 }
2290void SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))
2291 {
2292 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)())cb);
2293 }
2294
2295
2296
2297#if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
2298#include "../crypto/bio/bss_file.c"
2299#endif
2300
2301IMPLEMENT_STACK_OF(SSL_CIPHER)
2302IMPLEMENT_STACK_OF(SSL_COMP)
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-03-19 22:09:57 +0000