Import OpenSSL 0.9.8e.
[dragonfly.git] / crypto / openssl-0.9 / ssl / ssl_lib.c
CommitLineData
56276539
SS
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 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
115 * ECC cipher suite support in OpenSSL originally developed by
116 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
117 */
118
119#ifdef REF_CHECK
120# include <assert.h>
121#endif
122#include <stdio.h>
123#include "ssl_locl.h"
124#include "kssl_lcl.h"
125#include <openssl/objects.h>
126#include <openssl/lhash.h>
127#include <openssl/x509v3.h>
5bd86ce5 128#ifndef OPENSSL_NO_DH
56276539 129#include <openssl/dh.h>
5bd86ce5 130#endif
56276539
SS
131
132const char *SSL_version_str=OPENSSL_VERSION_TEXT;
133
134SSL3_ENC_METHOD ssl3_undef_enc_method={
135 /* evil casts, but these functions are only called if there's a library bug */
136 (int (*)(SSL *,int))ssl_undefined_function,
137 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
138 ssl_undefined_function,
139 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
140 (int (*)(SSL*, int))ssl_undefined_function,
5bd86ce5
SS
141 (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function,
142 0, /* finish_mac_length */
143 (int (*)(SSL *, EVP_MD_CTX *, unsigned char *))ssl_undefined_function,
144 NULL, /* client_finished_label */
145 0, /* client_finished_label_len */
146 NULL, /* server_finished_label */
147 0, /* server_finished_label_len */
148 (int (*)(int))ssl_undefined_function
56276539
SS
149 };
150
151int SSL_clear(SSL *s)
152 {
153
154 if (s->method == NULL)
155 {
156 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
157 return(0);
158 }
159
160 if (ssl_clear_bad_session(s))
161 {
162 SSL_SESSION_free(s->session);
163 s->session=NULL;
164 }
165
166 s->error=0;
167 s->hit=0;
168 s->shutdown=0;
169
170#if 0 /* Disabled since version 1.10 of this file (early return not
171 * needed because SSL_clear is not called when doing renegotiation) */
172 /* This is set if we are doing dynamic renegotiation so keep
173 * the old cipher. It is sort of a SSL_clear_lite :-) */
174 if (s->new_session) return(1);
175#else
176 if (s->new_session)
177 {
178 SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR);
179 return 0;
180 }
181#endif
182
183 s->type=0;
184
185 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
186
187 s->version=s->method->version;
188 s->client_version=s->version;
189 s->rwstate=SSL_NOTHING;
190 s->rstate=SSL_ST_READ_HEADER;
191#if 0
192 s->read_ahead=s->ctx->read_ahead;
193#endif
194
195 if (s->init_buf != NULL)
196 {
197 BUF_MEM_free(s->init_buf);
198 s->init_buf=NULL;
199 }
200
201 ssl_clear_cipher_ctx(s);
202
203 s->first_packet=0;
204
205#if 1
206 /* Check to see if we were changed into a different method, if
207 * so, revert back if we are not doing session-id reuse. */
208 if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method))
209 {
210 s->method->ssl_free(s);
211 s->method=s->ctx->method;
212 if (!s->method->ssl_new(s))
213 return(0);
214 }
215 else
216#endif
217 s->method->ssl_clear(s);
218 return(1);
219 }
220
221/** Used to change an SSL_CTXs default SSL method type */
222int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth)
223 {
224 STACK_OF(SSL_CIPHER) *sk;
225
226 ctx->method=meth;
227
228 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
229 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
230 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
231 {
232 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
233 return(0);
234 }
235 return(1);
236 }
237
238SSL *SSL_new(SSL_CTX *ctx)
239 {
240 SSL *s;
241
242 if (ctx == NULL)
243 {
244 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
245 return(NULL);
246 }
247 if (ctx->method == NULL)
248 {
249 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
250 return(NULL);
251 }
252
253 s=(SSL *)OPENSSL_malloc(sizeof(SSL));
254 if (s == NULL) goto err;
255 memset(s,0,sizeof(SSL));
256
257#ifndef OPENSSL_NO_KRB5
258 s->kssl_ctx = kssl_ctx_new();
259#endif /* OPENSSL_NO_KRB5 */
260
261 s->options=ctx->options;
262 s->mode=ctx->mode;
263 s->max_cert_list=ctx->max_cert_list;
264
265 if (ctx->cert != NULL)
266 {
267 /* Earlier library versions used to copy the pointer to
268 * the CERT, not its contents; only when setting new
269 * parameters for the per-SSL copy, ssl_cert_new would be
270 * called (and the direct reference to the per-SSL_CTX
271 * settings would be lost, but those still were indirectly
272 * accessed for various purposes, and for that reason they
273 * used to be known as s->ctx->default_cert).
274 * Now we don't look at the SSL_CTX's CERT after having
275 * duplicated it once. */
276
277 s->cert = ssl_cert_dup(ctx->cert);
278 if (s->cert == NULL)
279 goto err;
280 }
281 else
282 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
283
284 s->read_ahead=ctx->read_ahead;
285 s->msg_callback=ctx->msg_callback;
286 s->msg_callback_arg=ctx->msg_callback_arg;
287 s->verify_mode=ctx->verify_mode;
288#if 0
289 s->verify_depth=ctx->verify_depth;
290#endif
291 s->sid_ctx_length=ctx->sid_ctx_length;
292 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
293 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
294 s->verify_callback=ctx->default_verify_callback;
295 s->generate_session_id=ctx->generate_session_id;
296
297 s->param = X509_VERIFY_PARAM_new();
298 if (!s->param)
299 goto err;
300 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
301#if 0
302 s->purpose = ctx->purpose;
303 s->trust = ctx->trust;
304#endif
305 s->quiet_shutdown=ctx->quiet_shutdown;
306
307 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
308 s->ctx=ctx;
309
310 s->verify_result=X509_V_OK;
311
312 s->method=ctx->method;
313
314 if (!s->method->ssl_new(s))
315 goto err;
316
317 s->references=1;
318 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
319
320 SSL_clear(s);
321
322 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
323
324 return(s);
325err:
326 if (s != NULL)
327 {
328 if (s->cert != NULL)
329 ssl_cert_free(s->cert);
330 if (s->ctx != NULL)
331 SSL_CTX_free(s->ctx); /* decrement reference count */
332 OPENSSL_free(s);
333 }
334 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
335 return(NULL);
336 }
337
338int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
339 unsigned int sid_ctx_len)
340 {
341 if(sid_ctx_len > sizeof ctx->sid_ctx)
342 {
343 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
344 return 0;
345 }
346 ctx->sid_ctx_length=sid_ctx_len;
347 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
348
349 return 1;
350 }
351
352int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
353 unsigned int sid_ctx_len)
354 {
355 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
356 {
357 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
358 return 0;
359 }
360 ssl->sid_ctx_length=sid_ctx_len;
361 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
362
363 return 1;
364 }
365
366int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
367 {
368 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
369 ctx->generate_session_id = cb;
370 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
371 return 1;
372 }
373
374int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
375 {
376 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
377 ssl->generate_session_id = cb;
378 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
379 return 1;
380 }
381
382int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
383 unsigned int id_len)
384 {
385 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
386 * we can "construct" a session to give us the desired check - ie. to
387 * find if there's a session in the hash table that would conflict with
388 * any new session built out of this id/id_len and the ssl_version in
389 * use by this SSL. */
390 SSL_SESSION r, *p;
391
392 if(id_len > sizeof r.session_id)
393 return 0;
394
395 r.ssl_version = ssl->version;
396 r.session_id_length = id_len;
397 memcpy(r.session_id, id, id_len);
398 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
399 * callback is calling us to check the uniqueness of a shorter ID, it
400 * must be compared as a padded-out ID because that is what it will be
401 * converted to when the callback has finished choosing it. */
402 if((r.ssl_version == SSL2_VERSION) &&
403 (id_len < SSL2_SSL_SESSION_ID_LENGTH))
404 {
405 memset(r.session_id + id_len, 0,
406 SSL2_SSL_SESSION_ID_LENGTH - id_len);
407 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
408 }
409
410 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
411 p = (SSL_SESSION *)lh_retrieve(ssl->ctx->sessions, &r);
412 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
413 return (p != NULL);
414 }
415
416int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
417 {
418 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
419 }
420
421int SSL_set_purpose(SSL *s, int purpose)
422 {
423 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
424 }
425
426int SSL_CTX_set_trust(SSL_CTX *s, int trust)
427 {
428 return X509_VERIFY_PARAM_set_trust(s->param, trust);
429 }
430
431int SSL_set_trust(SSL *s, int trust)
432 {
433 return X509_VERIFY_PARAM_set_trust(s->param, trust);
434 }
435
436void SSL_free(SSL *s)
437 {
438 int i;
439
440 if(s == NULL)
441 return;
442
443 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
444#ifdef REF_PRINT
445 REF_PRINT("SSL",s);
446#endif
447 if (i > 0) return;
448#ifdef REF_CHECK
449 if (i < 0)
450 {
451 fprintf(stderr,"SSL_free, bad reference count\n");
452 abort(); /* ok */
453 }
454#endif
455
456 if (s->param)
457 X509_VERIFY_PARAM_free(s->param);
458
459 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
460
461 if (s->bbio != NULL)
462 {
463 /* If the buffering BIO is in place, pop it off */
464 if (s->bbio == s->wbio)
465 {
466 s->wbio=BIO_pop(s->wbio);
467 }
468 BIO_free(s->bbio);
469 s->bbio=NULL;
470 }
471 if (s->rbio != NULL)
472 BIO_free_all(s->rbio);
473 if ((s->wbio != NULL) && (s->wbio != s->rbio))
474 BIO_free_all(s->wbio);
475
476 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
477
478 /* add extra stuff */
479 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
480 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
481
482 /* Make the next call work :-) */
483 if (s->session != NULL)
484 {
485 ssl_clear_bad_session(s);
486 SSL_SESSION_free(s->session);
487 }
488
489 ssl_clear_cipher_ctx(s);
490
491 if (s->cert != NULL) ssl_cert_free(s->cert);
492 /* Free up if allocated */
493
494 if (s->ctx) SSL_CTX_free(s->ctx);
495
496 if (s->client_CA != NULL)
497 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
498
499 if (s->method != NULL) s->method->ssl_free(s);
500
501#ifndef OPENSSL_NO_KRB5
502 if (s->kssl_ctx != NULL)
503 kssl_ctx_free(s->kssl_ctx);
504#endif /* OPENSSL_NO_KRB5 */
505
506 OPENSSL_free(s);
507 }
508
509void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
510 {
511 /* If the output buffering BIO is still in place, remove it
512 */
513 if (s->bbio != NULL)
514 {
515 if (s->wbio == s->bbio)
516 {
517 s->wbio=s->wbio->next_bio;
518 s->bbio->next_bio=NULL;
519 }
520 }
521 if ((s->rbio != NULL) && (s->rbio != rbio))
522 BIO_free_all(s->rbio);
523 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
524 BIO_free_all(s->wbio);
525 s->rbio=rbio;
526 s->wbio=wbio;
527 }
528
529BIO *SSL_get_rbio(const SSL *s)
530 { return(s->rbio); }
531
532BIO *SSL_get_wbio(const SSL *s)
533 { return(s->wbio); }
534
535int SSL_get_fd(const SSL *s)
536 {
537 return(SSL_get_rfd(s));
538 }
539
540int SSL_get_rfd(const SSL *s)
541 {
542 int ret= -1;
543 BIO *b,*r;
544
545 b=SSL_get_rbio(s);
546 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
547 if (r != NULL)
548 BIO_get_fd(r,&ret);
549 return(ret);
550 }
551
552int SSL_get_wfd(const SSL *s)
553 {
554 int ret= -1;
555 BIO *b,*r;
556
557 b=SSL_get_wbio(s);
558 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
559 if (r != NULL)
560 BIO_get_fd(r,&ret);
561 return(ret);
562 }
563
564#ifndef OPENSSL_NO_SOCK
565int SSL_set_fd(SSL *s,int fd)
566 {
567 int ret=0;
568 BIO *bio=NULL;
569
570 bio=BIO_new(BIO_s_socket());
571
572 if (bio == NULL)
573 {
574 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
575 goto err;
576 }
577 BIO_set_fd(bio,fd,BIO_NOCLOSE);
578 SSL_set_bio(s,bio,bio);
579 ret=1;
580err:
581 return(ret);
582 }
583
584int SSL_set_wfd(SSL *s,int fd)
585 {
586 int ret=0;
587 BIO *bio=NULL;
588
589 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
590 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
591 {
592 bio=BIO_new(BIO_s_socket());
593
594 if (bio == NULL)
595 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
596 BIO_set_fd(bio,fd,BIO_NOCLOSE);
597 SSL_set_bio(s,SSL_get_rbio(s),bio);
598 }
599 else
600 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
601 ret=1;
602err:
603 return(ret);
604 }
605
606int SSL_set_rfd(SSL *s,int fd)
607 {
608 int ret=0;
609 BIO *bio=NULL;
610
611 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
612 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
613 {
614 bio=BIO_new(BIO_s_socket());
615
616 if (bio == NULL)
617 {
618 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
619 goto err;
620 }
621 BIO_set_fd(bio,fd,BIO_NOCLOSE);
622 SSL_set_bio(s,bio,SSL_get_wbio(s));
623 }
624 else
625 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
626 ret=1;
627err:
628 return(ret);
629 }
630#endif
631
632
633/* return length of latest Finished message we sent, copy to 'buf' */
634size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
635 {
636 size_t ret = 0;
637
638 if (s->s3 != NULL)
639 {
640 ret = s->s3->tmp.finish_md_len;
641 if (count > ret)
642 count = ret;
643 memcpy(buf, s->s3->tmp.finish_md, count);
644 }
645 return ret;
646 }
647
648/* return length of latest Finished message we expected, copy to 'buf' */
649size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
650 {
651 size_t ret = 0;
652
653 if (s->s3 != NULL)
654 {
655 ret = s->s3->tmp.peer_finish_md_len;
656 if (count > ret)
657 count = ret;
658 memcpy(buf, s->s3->tmp.peer_finish_md, count);
659 }
660 return ret;
661 }
662
663
664int SSL_get_verify_mode(const SSL *s)
665 {
666 return(s->verify_mode);
667 }
668
669int SSL_get_verify_depth(const SSL *s)
670 {
671 return X509_VERIFY_PARAM_get_depth(s->param);
672 }
673
674int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *)
675 {
676 return(s->verify_callback);
677 }
678
679int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
680 {
681 return(ctx->verify_mode);
682 }
683
684int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
685 {
686 return X509_VERIFY_PARAM_get_depth(ctx->param);
687 }
688
689int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *)
690 {
691 return(ctx->default_verify_callback);
692 }
693
694void SSL_set_verify(SSL *s,int mode,
695 int (*callback)(int ok,X509_STORE_CTX *ctx))
696 {
697 s->verify_mode=mode;
698 if (callback != NULL)
699 s->verify_callback=callback;
700 }
701
702void SSL_set_verify_depth(SSL *s,int depth)
703 {
704 X509_VERIFY_PARAM_set_depth(s->param, depth);
705 }
706
707void SSL_set_read_ahead(SSL *s,int yes)
708 {
709 s->read_ahead=yes;
710 }
711
712int SSL_get_read_ahead(const SSL *s)
713 {
714 return(s->read_ahead);
715 }
716
717int SSL_pending(const SSL *s)
718 {
719 /* SSL_pending cannot work properly if read-ahead is enabled
720 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
721 * and it is impossible to fix since SSL_pending cannot report
722 * errors that may be observed while scanning the new data.
723 * (Note that SSL_pending() is often used as a boolean value,
724 * so we'd better not return -1.)
725 */
726 return(s->method->ssl_pending(s));
727 }
728
729X509 *SSL_get_peer_certificate(const SSL *s)
730 {
731 X509 *r;
732
733 if ((s == NULL) || (s->session == NULL))
734 r=NULL;
735 else
736 r=s->session->peer;
737
738 if (r == NULL) return(r);
739
740 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
741
742 return(r);
743 }
744
745STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
746 {
747 STACK_OF(X509) *r;
748
749 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
750 r=NULL;
751 else
752 r=s->session->sess_cert->cert_chain;
753
754 /* If we are a client, cert_chain includes the peer's own
755 * certificate; if we are a server, it does not. */
756
757 return(r);
758 }
759
760/* Now in theory, since the calling process own 't' it should be safe to
761 * modify. We need to be able to read f without being hassled */
762void SSL_copy_session_id(SSL *t,const SSL *f)
763 {
764 CERT *tmp;
765
766 /* Do we need to to SSL locking? */
767 SSL_set_session(t,SSL_get_session(f));
768
769 /* what if we are setup as SSLv2 but want to talk SSLv3 or
770 * vice-versa */
771 if (t->method != f->method)
772 {
773 t->method->ssl_free(t); /* cleanup current */
774 t->method=f->method; /* change method */
775 t->method->ssl_new(t); /* setup new */
776 }
777
778 tmp=t->cert;
779 if (f->cert != NULL)
780 {
781 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
782 t->cert=f->cert;
783 }
784 else
785 t->cert=NULL;
786 if (tmp != NULL) ssl_cert_free(tmp);
787 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
788 }
789
790/* Fix this so it checks all the valid key/cert options */
791int SSL_CTX_check_private_key(const SSL_CTX *ctx)
792 {
793 if ( (ctx == NULL) ||
794 (ctx->cert == NULL) ||
795 (ctx->cert->key->x509 == NULL))
796 {
797 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
798 return(0);
799 }
800 if (ctx->cert->key->privatekey == NULL)
801 {
802 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
803 return(0);
804 }
805 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
806 }
807
808/* Fix this function so that it takes an optional type parameter */
809int SSL_check_private_key(const SSL *ssl)
810 {
811 if (ssl == NULL)
812 {
813 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
814 return(0);
815 }
816 if (ssl->cert == NULL)
817 {
818 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
819 return 0;
820 }
821 if (ssl->cert->key->x509 == NULL)
822 {
823 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
824 return(0);
825 }
826 if (ssl->cert->key->privatekey == NULL)
827 {
828 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
829 return(0);
830 }
831 return(X509_check_private_key(ssl->cert->key->x509,
832 ssl->cert->key->privatekey));
833 }
834
835int SSL_accept(SSL *s)
836 {
837 if (s->handshake_func == 0)
838 /* Not properly initialized yet */
839 SSL_set_accept_state(s);
840
841 return(s->method->ssl_accept(s));
842 }
843
844int SSL_connect(SSL *s)
845 {
846 if (s->handshake_func == 0)
847 /* Not properly initialized yet */
848 SSL_set_connect_state(s);
849
850 return(s->method->ssl_connect(s));
851 }
852
853long SSL_get_default_timeout(const SSL *s)
854 {
855 return(s->method->get_timeout());
856 }
857
858int SSL_read(SSL *s,void *buf,int num)
859 {
860 if (s->handshake_func == 0)
861 {
862 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
863 return -1;
864 }
865
866 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
867 {
868 s->rwstate=SSL_NOTHING;
869 return(0);
870 }
871 return(s->method->ssl_read(s,buf,num));
872 }
873
874int SSL_peek(SSL *s,void *buf,int num)
875 {
876 if (s->handshake_func == 0)
877 {
878 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
879 return -1;
880 }
881
882 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
883 {
884 return(0);
885 }
886 return(s->method->ssl_peek(s,buf,num));
887 }
888
889int SSL_write(SSL *s,const void *buf,int num)
890 {
891 if (s->handshake_func == 0)
892 {
893 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
894 return -1;
895 }
896
897 if (s->shutdown & SSL_SENT_SHUTDOWN)
898 {
899 s->rwstate=SSL_NOTHING;
900 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
901 return(-1);
902 }
903 return(s->method->ssl_write(s,buf,num));
904 }
905
906int SSL_shutdown(SSL *s)
907 {
908 /* Note that this function behaves differently from what one might
909 * expect. Return values are 0 for no success (yet),
910 * 1 for success; but calling it once is usually not enough,
911 * even if blocking I/O is used (see ssl3_shutdown).
912 */
913
914 if (s->handshake_func == 0)
915 {
916 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
917 return -1;
918 }
919
920 if ((s != NULL) && !SSL_in_init(s))
921 return(s->method->ssl_shutdown(s));
922 else
923 return(1);
924 }
925
926int SSL_renegotiate(SSL *s)
927 {
928 if (s->new_session == 0)
929 {
930 s->new_session=1;
931 }
932 return(s->method->ssl_renegotiate(s));
933 }
934
935int SSL_renegotiate_pending(SSL *s)
936 {
937 /* becomes true when negotiation is requested;
938 * false again once a handshake has finished */
939 return (s->new_session != 0);
940 }
941
942long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
943 {
944 long l;
945
946 switch (cmd)
947 {
948 case SSL_CTRL_GET_READ_AHEAD:
949 return(s->read_ahead);
950 case SSL_CTRL_SET_READ_AHEAD:
951 l=s->read_ahead;
952 s->read_ahead=larg;
953 return(l);
954
955 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
956 s->msg_callback_arg = parg;
957 return 1;
958
959 case SSL_CTRL_OPTIONS:
960 return(s->options|=larg);
961 case SSL_CTRL_MODE:
962 return(s->mode|=larg);
963 case SSL_CTRL_GET_MAX_CERT_LIST:
964 return(s->max_cert_list);
965 case SSL_CTRL_SET_MAX_CERT_LIST:
966 l=s->max_cert_list;
967 s->max_cert_list=larg;
968 return(l);
969 case SSL_CTRL_SET_MTU:
970 if (SSL_version(s) == DTLS1_VERSION)
971 {
972 s->d1->mtu = larg;
973 return larg;
974 }
975 return 0;
976 default:
977 return(s->method->ssl_ctrl(s,cmd,larg,parg));
978 }
979 }
980
981long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
982 {
983 switch(cmd)
984 {
985 case SSL_CTRL_SET_MSG_CALLBACK:
986 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
987 return 1;
988
989 default:
990 return(s->method->ssl_callback_ctrl(s,cmd,fp));
991 }
992 }
993
994struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
995 {
996 return ctx->sessions;
997 }
998
999long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
1000 {
1001 long l;
1002
1003 switch (cmd)
1004 {
1005 case SSL_CTRL_GET_READ_AHEAD:
1006 return(ctx->read_ahead);
1007 case SSL_CTRL_SET_READ_AHEAD:
1008 l=ctx->read_ahead;
1009 ctx->read_ahead=larg;
1010 return(l);
1011
1012 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1013 ctx->msg_callback_arg = parg;
1014 return 1;
1015
1016 case SSL_CTRL_GET_MAX_CERT_LIST:
1017 return(ctx->max_cert_list);
1018 case SSL_CTRL_SET_MAX_CERT_LIST:
1019 l=ctx->max_cert_list;
1020 ctx->max_cert_list=larg;
1021 return(l);
1022
1023 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1024 l=ctx->session_cache_size;
1025 ctx->session_cache_size=larg;
1026 return(l);
1027 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1028 return(ctx->session_cache_size);
1029 case SSL_CTRL_SET_SESS_CACHE_MODE:
1030 l=ctx->session_cache_mode;
1031 ctx->session_cache_mode=larg;
1032 return(l);
1033 case SSL_CTRL_GET_SESS_CACHE_MODE:
1034 return(ctx->session_cache_mode);
1035
1036 case SSL_CTRL_SESS_NUMBER:
1037 return(ctx->sessions->num_items);
1038 case SSL_CTRL_SESS_CONNECT:
1039 return(ctx->stats.sess_connect);
1040 case SSL_CTRL_SESS_CONNECT_GOOD:
1041 return(ctx->stats.sess_connect_good);
1042 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1043 return(ctx->stats.sess_connect_renegotiate);
1044 case SSL_CTRL_SESS_ACCEPT:
1045 return(ctx->stats.sess_accept);
1046 case SSL_CTRL_SESS_ACCEPT_GOOD:
1047 return(ctx->stats.sess_accept_good);
1048 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1049 return(ctx->stats.sess_accept_renegotiate);
1050 case SSL_CTRL_SESS_HIT:
1051 return(ctx->stats.sess_hit);
1052 case SSL_CTRL_SESS_CB_HIT:
1053 return(ctx->stats.sess_cb_hit);
1054 case SSL_CTRL_SESS_MISSES:
1055 return(ctx->stats.sess_miss);
1056 case SSL_CTRL_SESS_TIMEOUTS:
1057 return(ctx->stats.sess_timeout);
1058 case SSL_CTRL_SESS_CACHE_FULL:
1059 return(ctx->stats.sess_cache_full);
1060 case SSL_CTRL_OPTIONS:
1061 return(ctx->options|=larg);
1062 case SSL_CTRL_MODE:
1063 return(ctx->mode|=larg);
1064 default:
1065 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1066 }
1067 }
1068
1069long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1070 {
1071 switch(cmd)
1072 {
1073 case SSL_CTRL_SET_MSG_CALLBACK:
1074 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1075 return 1;
1076
1077 default:
1078 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1079 }
1080 }
1081
1082int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1083 {
1084 long l;
1085
1086 l=a->id-b->id;
1087 if (l == 0L)
1088 return(0);
1089 else
1090 return((l > 0)?1:-1);
1091 }
1092
1093int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1094 const SSL_CIPHER * const *bp)
1095 {
1096 long l;
1097
1098 l=(*ap)->id-(*bp)->id;
1099 if (l == 0L)
1100 return(0);
1101 else
1102 return((l > 0)?1:-1);
1103 }
1104
1105/** return a STACK of the ciphers available for the SSL and in order of
1106 * preference */
1107STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1108 {
1109 if (s != NULL)
1110 {
1111 if (s->cipher_list != NULL)
1112 {
1113 return(s->cipher_list);
1114 }
1115 else if ((s->ctx != NULL) &&
1116 (s->ctx->cipher_list != NULL))
1117 {
1118 return(s->ctx->cipher_list);
1119 }
1120 }
1121 return(NULL);
1122 }
1123
1124/** return a STACK of the ciphers available for the SSL and in order of
1125 * algorithm id */
1126STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1127 {
1128 if (s != NULL)
1129 {
1130 if (s->cipher_list_by_id != NULL)
1131 {
1132 return(s->cipher_list_by_id);
1133 }
1134 else if ((s->ctx != NULL) &&
1135 (s->ctx->cipher_list_by_id != NULL))
1136 {
1137 return(s->ctx->cipher_list_by_id);
1138 }
1139 }
1140 return(NULL);
1141 }
1142
1143/** The old interface to get the same thing as SSL_get_ciphers() */
1144const char *SSL_get_cipher_list(const SSL *s,int n)
1145 {
1146 SSL_CIPHER *c;
1147 STACK_OF(SSL_CIPHER) *sk;
1148
1149 if (s == NULL) return(NULL);
1150 sk=SSL_get_ciphers(s);
1151 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1152 return(NULL);
1153 c=sk_SSL_CIPHER_value(sk,n);
1154 if (c == NULL) return(NULL);
1155 return(c->name);
1156 }
1157
1158/** specify the ciphers to be used by default by the SSL_CTX */
1159int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1160 {
1161 STACK_OF(SSL_CIPHER) *sk;
1162
1163 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1164 &ctx->cipher_list_by_id,str);
1165 /* ssl_create_cipher_list may return an empty stack if it
1166 * was unable to find a cipher matching the given rule string
1167 * (for example if the rule string specifies a cipher which
1168 * has been disabled). This is not an error as far as
1169 * ssl_create_cipher_list is concerned, and hence
1170 * ctx->cipher_list and ctx->cipher_list_by_id has been
1171 * updated. */
1172 if (sk == NULL)
1173 return 0;
1174 else if (sk_SSL_CIPHER_num(sk) == 0)
1175 {
1176 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1177 return 0;
1178 }
1179 return 1;
1180 }
1181
1182/** specify the ciphers to be used by the SSL */
1183int SSL_set_cipher_list(SSL *s,const char *str)
1184 {
1185 STACK_OF(SSL_CIPHER) *sk;
1186
1187 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1188 &s->cipher_list_by_id,str);
1189 /* see comment in SSL_CTX_set_cipher_list */
1190 if (sk == NULL)
1191 return 0;
1192 else if (sk_SSL_CIPHER_num(sk) == 0)
1193 {
1194 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1195 return 0;
1196 }
1197 return 1;
1198 }
1199
1200/* works well for SSLv2, not so good for SSLv3 */
1201char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1202 {
1203 char *p;
1204 const char *cp;
1205 STACK_OF(SSL_CIPHER) *sk;
1206 SSL_CIPHER *c;
1207 int i;
1208
1209 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1210 (len < 2))
1211 return(NULL);
1212
1213 p=buf;
1214 sk=s->session->ciphers;
1215 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1216 {
1217 /* Decrement for either the ':' or a '\0' */
1218 len--;
1219 c=sk_SSL_CIPHER_value(sk,i);
1220 for (cp=c->name; *cp; )
1221 {
3b25c29b 1222 if (len-- <= 0)
56276539
SS
1223 {
1224 *p='\0';
1225 return(buf);
1226 }
1227 else
1228 *(p++)= *(cp++);
1229 }
1230 *(p++)=':';
1231 }
1232 p[-1]='\0';
1233 return(buf);
1234 }
1235
1236int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1237 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
1238 {
1239 int i,j=0;
1240 SSL_CIPHER *c;
1241 unsigned char *q;
1242#ifndef OPENSSL_NO_KRB5
1243 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx);
1244#endif /* OPENSSL_NO_KRB5 */
1245
1246 if (sk == NULL) return(0);
1247 q=p;
1248
1249 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1250 {
1251 c=sk_SSL_CIPHER_value(sk,i);
1252#ifndef OPENSSL_NO_KRB5
1253 if ((c->algorithms & SSL_KRB5) && nokrb5)
1254 continue;
1255#endif /* OPENSSL_NO_KRB5 */
1256
1257 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p);
1258 p+=j;
1259 }
1260 return(p-q);
1261 }
1262
1263STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1264 STACK_OF(SSL_CIPHER) **skp)
1265 {
1266 SSL_CIPHER *c;
1267 STACK_OF(SSL_CIPHER) *sk;
1268 int i,n;
1269
1270 n=ssl_put_cipher_by_char(s,NULL,NULL);
1271 if ((num%n) != 0)
1272 {
1273 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1274 return(NULL);
1275 }
1276 if ((skp == NULL) || (*skp == NULL))
1277 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1278 else
1279 {
1280 sk= *skp;
1281 sk_SSL_CIPHER_zero(sk);
1282 }
1283
1284 for (i=0; i<num; i+=n)
1285 {
1286 c=ssl_get_cipher_by_char(s,p);
1287 p+=n;
1288 if (c != NULL)
1289 {
1290 if (!sk_SSL_CIPHER_push(sk,c))
1291 {
1292 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1293 goto err;
1294 }
1295 }
1296 }
1297
1298 if (skp != NULL)
1299 *skp=sk;
1300 return(sk);
1301err:
1302 if ((skp == NULL) || (*skp == NULL))
1303 sk_SSL_CIPHER_free(sk);
1304 return(NULL);
1305 }
1306
1307unsigned long SSL_SESSION_hash(const SSL_SESSION *a)
1308 {
1309 unsigned long l;
1310
1311 l=(unsigned long)
1312 ((unsigned int) a->session_id[0] )|
1313 ((unsigned int) a->session_id[1]<< 8L)|
1314 ((unsigned long)a->session_id[2]<<16L)|
1315 ((unsigned long)a->session_id[3]<<24L);
1316 return(l);
1317 }
1318
1319/* NB: If this function (or indeed the hash function which uses a sort of
1320 * coarser function than this one) is changed, ensure
1321 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1322 * able to construct an SSL_SESSION that will collide with any existing session
1323 * with a matching session ID. */
1324int SSL_SESSION_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1325 {
1326 if (a->ssl_version != b->ssl_version)
1327 return(1);
1328 if (a->session_id_length != b->session_id_length)
1329 return(1);
1330 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1331 }
1332
1333/* These wrapper functions should remain rather than redeclaring
1334 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1335 * variable. The reason is that the functions aren't static, they're exposed via
1336 * ssl.h. */
1337static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash, SSL_SESSION *)
1338static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp, SSL_SESSION *)
1339
1340SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1341 {
1342 SSL_CTX *ret=NULL;
1343
1344 if (meth == NULL)
1345 {
1346 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1347 return(NULL);
1348 }
1349
1350 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1351 {
1352 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1353 goto err;
1354 }
1355 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1356 if (ret == NULL)
1357 goto err;
1358
1359 memset(ret,0,sizeof(SSL_CTX));
1360
1361 ret->method=meth;
1362
1363 ret->cert_store=NULL;
1364 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1365 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1366 ret->session_cache_head=NULL;
1367 ret->session_cache_tail=NULL;
1368
1369 /* We take the system default */
1370 ret->session_timeout=meth->get_timeout();
1371
1372 ret->new_session_cb=0;
1373 ret->remove_session_cb=0;
1374 ret->get_session_cb=0;
1375 ret->generate_session_id=0;
1376
1377 memset((char *)&ret->stats,0,sizeof(ret->stats));
1378
1379 ret->references=1;
1380 ret->quiet_shutdown=0;
1381
1382/* ret->cipher=NULL;*/
1383/* ret->s2->challenge=NULL;
1384 ret->master_key=NULL;
1385 ret->key_arg=NULL;
1386 ret->s2->conn_id=NULL; */
1387
1388 ret->info_callback=NULL;
1389
1390 ret->app_verify_callback=0;
1391 ret->app_verify_arg=NULL;
1392
1393 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1394 ret->read_ahead=0;
1395 ret->msg_callback=0;
1396 ret->msg_callback_arg=NULL;
1397 ret->verify_mode=SSL_VERIFY_NONE;
1398#if 0
1399 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1400#endif
1401 ret->sid_ctx_length=0;
1402 ret->default_verify_callback=NULL;
1403 if ((ret->cert=ssl_cert_new()) == NULL)
1404 goto err;
1405
1406 ret->default_passwd_callback=0;
1407 ret->default_passwd_callback_userdata=NULL;
1408 ret->client_cert_cb=0;
1409 ret->app_gen_cookie_cb=0;
1410 ret->app_verify_cookie_cb=0;
1411
1412 ret->sessions=lh_new(LHASH_HASH_FN(SSL_SESSION_hash),
1413 LHASH_COMP_FN(SSL_SESSION_cmp));
1414 if (ret->sessions == NULL) goto err;
1415 ret->cert_store=X509_STORE_new();
1416 if (ret->cert_store == NULL) goto err;
1417
1418 ssl_create_cipher_list(ret->method,
1419 &ret->cipher_list,&ret->cipher_list_by_id,
1420 SSL_DEFAULT_CIPHER_LIST);
1421 if (ret->cipher_list == NULL
1422 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1423 {
1424 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1425 goto err2;
1426 }
1427
1428 ret->param = X509_VERIFY_PARAM_new();
1429 if (!ret->param)
1430 goto err;
1431
1432 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1433 {
1434 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1435 goto err2;
1436 }
1437 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1438 {
1439 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1440 goto err2;
1441 }
1442 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1443 {
1444 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1445 goto err2;
1446 }
1447
1448 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1449 goto err;
1450
1451 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1452
1453 ret->extra_certs=NULL;
1454 ret->comp_methods=SSL_COMP_get_compression_methods();
1455
1456 return(ret);
1457err:
1458 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1459err2:
1460 if (ret != NULL) SSL_CTX_free(ret);
1461 return(NULL);
1462 }
1463
1464#if 0
1465static void SSL_COMP_free(SSL_COMP *comp)
1466 { OPENSSL_free(comp); }
1467#endif
1468
1469void SSL_CTX_free(SSL_CTX *a)
1470 {
1471 int i;
1472
1473 if (a == NULL) return;
1474
1475 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1476#ifdef REF_PRINT
1477 REF_PRINT("SSL_CTX",a);
1478#endif
1479 if (i > 0) return;
1480#ifdef REF_CHECK
1481 if (i < 0)
1482 {
1483 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1484 abort(); /* ok */
1485 }
1486#endif
1487
1488 if (a->param)
1489 X509_VERIFY_PARAM_free(a->param);
1490
1491 /*
1492 * Free internal session cache. However: the remove_cb() may reference
1493 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1494 * after the sessions were flushed.
1495 * As the ex_data handling routines might also touch the session cache,
1496 * the most secure solution seems to be: empty (flush) the cache, then
1497 * free ex_data, then finally free the cache.
1498 * (See ticket [openssl.org #212].)
1499 */
1500 if (a->sessions != NULL)
1501 SSL_CTX_flush_sessions(a,0);
1502
1503 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1504
1505 if (a->sessions != NULL)
1506 lh_free(a->sessions);
1507
1508 if (a->cert_store != NULL)
1509 X509_STORE_free(a->cert_store);
1510 if (a->cipher_list != NULL)
1511 sk_SSL_CIPHER_free(a->cipher_list);
1512 if (a->cipher_list_by_id != NULL)
1513 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1514 if (a->cert != NULL)
1515 ssl_cert_free(a->cert);
1516 if (a->client_CA != NULL)
1517 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1518 if (a->extra_certs != NULL)
1519 sk_X509_pop_free(a->extra_certs,X509_free);
1520#if 0 /* This should never be done, since it removes a global database */
1521 if (a->comp_methods != NULL)
1522 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1523#else
1524 a->comp_methods = NULL;
1525#endif
1526 OPENSSL_free(a);
1527 }
1528
1529void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1530 {
1531 ctx->default_passwd_callback=cb;
1532 }
1533
1534void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1535 {
1536 ctx->default_passwd_callback_userdata=u;
1537 }
1538
1539void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
1540 {
1541 ctx->app_verify_callback=cb;
1542 ctx->app_verify_arg=arg;
1543 }
1544
1545void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1546 {
1547 ctx->verify_mode=mode;
1548 ctx->default_verify_callback=cb;
1549 }
1550
1551void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1552 {
1553 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
1554 }
1555
1556void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1557 {
1558 CERT_PKEY *cpk;
1559 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1560 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1561 int rsa_tmp_export,dh_tmp_export,kl;
1562 unsigned long mask,emask;
5bd86ce5
SS
1563 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size;
1564#ifndef OPENSSL_NO_ECDH
1565 int have_ecdh_tmp;
1566#endif
56276539
SS
1567 X509 *x = NULL;
1568 EVP_PKEY *ecc_pkey = NULL;
1569 int signature_nid = 0;
1570
1571 if (c == NULL) return;
1572
1573 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1574
1575#ifndef OPENSSL_NO_RSA
1576 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1577 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1578 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1579#else
1580 rsa_tmp=rsa_tmp_export=0;
1581#endif
1582#ifndef OPENSSL_NO_DH
1583 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1584 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1585 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1586#else
1587 dh_tmp=dh_tmp_export=0;
1588#endif
1589
1590#ifndef OPENSSL_NO_ECDH
1591 have_ecdh_tmp=(c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL);
1592#endif
1593 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1594 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1595 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1596 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1597 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1598 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1599 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1600 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1601 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1602 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1603 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1604/* FIX THIS EAY EAY EAY */
1605 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1606 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1607 cpk= &(c->pkeys[SSL_PKEY_ECC]);
1608 have_ecc_cert= (cpk->x509 != NULL && cpk->privatekey != NULL);
1609 mask=0;
1610 emask=0;
1611
1612#ifdef CIPHER_DEBUG
1613 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1614 rsa_tmp,rsa_tmp_export,dh_tmp,
1615 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1616#endif
1617
1618 if (rsa_enc || (rsa_tmp && rsa_sign))
1619 mask|=SSL_kRSA;
1620 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1621 emask|=SSL_kRSA;
1622
1623#if 0
1624 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1625 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1626 (rsa_enc || rsa_sign || dsa_sign))
1627 mask|=SSL_kEDH;
1628 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1629 (rsa_enc || rsa_sign || dsa_sign))
1630 emask|=SSL_kEDH;
1631#endif
1632
1633 if (dh_tmp_export)
1634 emask|=SSL_kEDH;
1635
1636 if (dh_tmp)
1637 mask|=SSL_kEDH;
1638
1639 if (dh_rsa) mask|=SSL_kDHr;
1640 if (dh_rsa_export) emask|=SSL_kDHr;
1641
1642 if (dh_dsa) mask|=SSL_kDHd;
1643 if (dh_dsa_export) emask|=SSL_kDHd;
1644
1645 if (rsa_enc || rsa_sign)
1646 {
1647 mask|=SSL_aRSA;
1648 emask|=SSL_aRSA;
1649 }
1650
1651 if (dsa_sign)
1652 {
1653 mask|=SSL_aDSS;
1654 emask|=SSL_aDSS;
1655 }
1656
1657 mask|=SSL_aNULL;
1658 emask|=SSL_aNULL;
1659
1660#ifndef OPENSSL_NO_KRB5
1661 mask|=SSL_kKRB5|SSL_aKRB5;
1662 emask|=SSL_kKRB5|SSL_aKRB5;
1663#endif
1664
1665 /* An ECC certificate may be usable for ECDH and/or
1666 * ECDSA cipher suites depending on the key usage extension.
1667 */
1668 if (have_ecc_cert)
1669 {
1670 /* This call populates extension flags (ex_flags) */
1671 x = (c->pkeys[SSL_PKEY_ECC]).x509;
1672 X509_check_purpose(x, -1, 0);
1673 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1674 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
1675 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1676 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
1677 ecc_pkey = X509_get_pubkey(x);
1678 ecc_pkey_size = (ecc_pkey != NULL) ?
1679 EVP_PKEY_bits(ecc_pkey) : 0;
1680 EVP_PKEY_free(ecc_pkey);
1681 if ((x->sig_alg) && (x->sig_alg->algorithm))
1682 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
1683#ifndef OPENSSL_NO_ECDH
1684 if (ecdh_ok)
1685 {
1686 if ((signature_nid == NID_md5WithRSAEncryption) ||
1687 (signature_nid == NID_md4WithRSAEncryption) ||
1688 (signature_nid == NID_md2WithRSAEncryption))
1689 {
1690 mask|=SSL_kECDH|SSL_aRSA;
1691 if (ecc_pkey_size <= 163)
1692 emask|=SSL_kECDH|SSL_aRSA;
1693 }
1694 if (signature_nid == NID_ecdsa_with_SHA1)
1695 {
1696 mask|=SSL_kECDH|SSL_aECDSA;
1697 if (ecc_pkey_size <= 163)
1698 emask|=SSL_kECDH|SSL_aECDSA;
1699 }
1700 }
1701#endif
1702#ifndef OPENSSL_NO_ECDSA
1703 if (ecdsa_ok)
1704 {
1705 mask|=SSL_aECDSA;
1706 emask|=SSL_aECDSA;
1707 }
1708#endif
1709 }
1710
1711#ifndef OPENSSL_NO_ECDH
1712 if (have_ecdh_tmp)
1713 {
1714 mask|=SSL_kECDHE;
1715 emask|=SSL_kECDHE;
1716 }
1717#endif
1718 c->mask=mask;
1719 c->export_mask=emask;
1720 c->valid=1;
1721 }
1722
1723/* This handy macro borrowed from crypto/x509v3/v3_purp.c */
1724#define ku_reject(x, usage) \
1725 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
1726
1727int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs)
1728 {
1729 unsigned long alg = cs->algorithms;
1730 EVP_PKEY *pkey = NULL;
1731 int keysize = 0;
1732 int signature_nid = 0;
1733
1734 if (SSL_C_IS_EXPORT(cs))
1735 {
1736 /* ECDH key length in export ciphers must be <= 163 bits */
1737 pkey = X509_get_pubkey(x);
1738 if (pkey == NULL) return 0;
1739 keysize = EVP_PKEY_bits(pkey);
1740 EVP_PKEY_free(pkey);
1741 if (keysize > 163) return 0;
1742 }
1743
1744 /* This call populates the ex_flags field correctly */
1745 X509_check_purpose(x, -1, 0);
1746 if ((x->sig_alg) && (x->sig_alg->algorithm))
1747 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
1748 if (alg & SSL_kECDH)
1749 {
1750 /* key usage, if present, must allow key agreement */
1751 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
1752 {
1753 return 0;
1754 }
1755 if (alg & SSL_aECDSA)
1756 {
1757 /* signature alg must be ECDSA */
1758 if (signature_nid != NID_ecdsa_with_SHA1)
1759 {
1760 return 0;
1761 }
1762 }
1763 if (alg & SSL_aRSA)
1764 {
1765 /* signature alg must be RSA */
1766 if ((signature_nid != NID_md5WithRSAEncryption) &&
1767 (signature_nid != NID_md4WithRSAEncryption) &&
1768 (signature_nid != NID_md2WithRSAEncryption))
1769 {
1770 return 0;
1771 }
1772 }
1773 }
1774 else if (alg & SSL_aECDSA)
1775 {
1776 /* key usage, if present, must allow signing */
1777 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
1778 {
1779 return 0;
1780 }
1781 }
1782
1783 return 1; /* all checks are ok */
1784 }
1785
1786/* THIS NEEDS CLEANING UP */
1787X509 *ssl_get_server_send_cert(SSL *s)
1788 {
1789 unsigned long alg,mask,kalg;
1790 CERT *c;
1791 int i,is_export;
1792
1793 c=s->cert;
1794 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1795 alg=s->s3->tmp.new_cipher->algorithms;
1796 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1797 mask=is_export?c->export_mask:c->mask;
1798 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1799
1800 if (kalg & SSL_kECDH)
1801 {
1802 /* we don't need to look at SSL_kECDHE
1803 * since no certificate is needed for
1804 * anon ECDH and for authenticated
1805 * ECDHE, the check for the auth
1806 * algorithm will set i correctly
1807 * NOTE: For ECDH-RSA, we need an ECC
1808 * not an RSA cert but for ECDHE-RSA
1809 * we need an RSA cert. Placing the
1810 * checks for SSL_kECDH before RSA
1811 * checks ensures the correct cert is chosen.
1812 */
1813 i=SSL_PKEY_ECC;
1814 }
1815 else if (kalg & SSL_aECDSA)
1816 {
1817 i=SSL_PKEY_ECC;
1818 }
1819 else if (kalg & SSL_kDHr)
1820 i=SSL_PKEY_DH_RSA;
1821 else if (kalg & SSL_kDHd)
1822 i=SSL_PKEY_DH_DSA;
1823 else if (kalg & SSL_aDSS)
1824 i=SSL_PKEY_DSA_SIGN;
1825 else if (kalg & SSL_aRSA)
1826 {
1827 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1828 i=SSL_PKEY_RSA_SIGN;
1829 else
1830 i=SSL_PKEY_RSA_ENC;
1831 }
1832 else if (kalg & SSL_aKRB5)
1833 {
1834 /* VRS something else here? */
1835 return(NULL);
1836 }
1837 else /* if (kalg & SSL_aNULL) */
1838 {
1839 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR);
1840 return(NULL);
1841 }
1842 if (c->pkeys[i].x509 == NULL) return(NULL);
1843
1844 return(c->pkeys[i].x509);
1845 }
1846
1847EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1848 {
1849 unsigned long alg;
1850 CERT *c;
1851
1852 alg=cipher->algorithms;
1853 c=s->cert;
1854
1855 if ((alg & SSL_aDSS) &&
1856 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1857 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1858 else if (alg & SSL_aRSA)
1859 {
1860 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1861 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1862 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1863 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1864 else
1865 return(NULL);
1866 }
1867 else if ((alg & SSL_aECDSA) &&
1868 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
1869 return(c->pkeys[SSL_PKEY_ECC].privatekey);
1870 else /* if (alg & SSL_aNULL) */
1871 {
1872 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
1873 return(NULL);
1874 }
1875 }
1876
1877void ssl_update_cache(SSL *s,int mode)
1878 {
1879 int i;
1880
1881 /* If the session_id_length is 0, we are not supposed to cache it,
1882 * and it would be rather hard to do anyway :-) */
1883 if (s->session->session_id_length == 0) return;
1884
1885 i=s->ctx->session_cache_mode;
1886 if ((i & mode) && (!s->hit)
1887 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
1888 || SSL_CTX_add_session(s->ctx,s->session))
1889 && (s->ctx->new_session_cb != NULL))
1890 {
1891 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1892 if (!s->ctx->new_session_cb(s,s->session))
1893 SSL_SESSION_free(s->session);
1894 }
1895
1896 /* auto flush every 255 connections */
1897 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1898 ((i & mode) == mode))
1899 {
1900 if ( (((mode & SSL_SESS_CACHE_CLIENT)
1901 ?s->ctx->stats.sess_connect_good
1902 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1903 {
74093195 1904 SSL_CTX_flush_sessions(s->ctx,(unsigned long)time(NULL));
56276539
SS
1905 }
1906 }
1907 }
1908
1909SSL_METHOD *SSL_get_ssl_method(SSL *s)
1910 {
1911 return(s->method);
1912 }
1913
1914int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1915 {
1916 int conn= -1;
1917 int ret=1;
1918
1919 if (s->method != meth)
1920 {
1921 if (s->handshake_func != NULL)
1922 conn=(s->handshake_func == s->method->ssl_connect);
1923
1924 if (s->method->version == meth->version)
1925 s->method=meth;
1926 else
1927 {
1928 s->method->ssl_free(s);
1929 s->method=meth;
1930 ret=s->method->ssl_new(s);
1931 }
1932
1933 if (conn == 1)
1934 s->handshake_func=meth->ssl_connect;
1935 else if (conn == 0)
1936 s->handshake_func=meth->ssl_accept;
1937 }
1938 return(ret);
1939 }
1940
1941int SSL_get_error(const SSL *s,int i)
1942 {
1943 int reason;
1944 unsigned long l;
1945 BIO *bio;
1946
1947 if (i > 0) return(SSL_ERROR_NONE);
1948
1949 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
1950 * etc, where we do encode the error */
1951 if ((l=ERR_peek_error()) != 0)
1952 {
1953 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
1954 return(SSL_ERROR_SYSCALL);
1955 else
1956 return(SSL_ERROR_SSL);
1957 }
1958
1959 if ((i < 0) && SSL_want_read(s))
1960 {
1961 bio=SSL_get_rbio(s);
1962 if (BIO_should_read(bio))
1963 return(SSL_ERROR_WANT_READ);
1964 else if (BIO_should_write(bio))
1965 /* This one doesn't make too much sense ... We never try
1966 * to write to the rbio, and an application program where
1967 * rbio and wbio are separate couldn't even know what it
1968 * should wait for.
1969 * However if we ever set s->rwstate incorrectly
1970 * (so that we have SSL_want_read(s) instead of
1971 * SSL_want_write(s)) and rbio and wbio *are* the same,
1972 * this test works around that bug; so it might be safer
1973 * to keep it. */
1974 return(SSL_ERROR_WANT_WRITE);
1975 else if (BIO_should_io_special(bio))
1976 {
1977 reason=BIO_get_retry_reason(bio);
1978 if (reason == BIO_RR_CONNECT)
1979 return(SSL_ERROR_WANT_CONNECT);
1980 else if (reason == BIO_RR_ACCEPT)
1981 return(SSL_ERROR_WANT_ACCEPT);
1982 else
1983 return(SSL_ERROR_SYSCALL); /* unknown */
1984 }
1985 }
1986
1987 if ((i < 0) && SSL_want_write(s))
1988 {
1989 bio=SSL_get_wbio(s);
1990 if (BIO_should_write(bio))
1991 return(SSL_ERROR_WANT_WRITE);
1992 else if (BIO_should_read(bio))
1993 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
1994 return(SSL_ERROR_WANT_READ);
1995 else if (BIO_should_io_special(bio))
1996 {
1997 reason=BIO_get_retry_reason(bio);
1998 if (reason == BIO_RR_CONNECT)
1999 return(SSL_ERROR_WANT_CONNECT);
2000 else if (reason == BIO_RR_ACCEPT)
2001 return(SSL_ERROR_WANT_ACCEPT);
2002 else
2003 return(SSL_ERROR_SYSCALL);
2004 }
2005 }
2006 if ((i < 0) && SSL_want_x509_lookup(s))
2007 {
2008 return(SSL_ERROR_WANT_X509_LOOKUP);
2009 }
2010
2011 if (i == 0)
2012 {
2013 if (s->version == SSL2_VERSION)
2014 {
2015 /* assume it is the socket being closed */
2016 return(SSL_ERROR_ZERO_RETURN);
2017 }
2018 else
2019 {
2020 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2021 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2022 return(SSL_ERROR_ZERO_RETURN);
2023 }
2024 }
2025 return(SSL_ERROR_SYSCALL);
2026 }
2027
2028int SSL_do_handshake(SSL *s)
2029 {
2030 int ret=1;
2031
2032 if (s->handshake_func == NULL)
2033 {
2034 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2035 return(-1);
2036 }
2037
2038 s->method->ssl_renegotiate_check(s);
2039
2040 if (SSL_in_init(s) || SSL_in_before(s))
2041 {
2042 ret=s->handshake_func(s);
2043 }
2044 return(ret);
2045 }
2046
2047/* For the next 2 functions, SSL_clear() sets shutdown and so
2048 * one of these calls will reset it */
2049void SSL_set_accept_state(SSL *s)
2050 {
2051 s->server=1;
2052 s->shutdown=0;
2053 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2054 s->handshake_func=s->method->ssl_accept;
2055 /* clear the current cipher */
2056 ssl_clear_cipher_ctx(s);
2057 }
2058
2059void SSL_set_connect_state(SSL *s)
2060 {
2061 s->server=0;
2062 s->shutdown=0;
2063 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2064 s->handshake_func=s->method->ssl_connect;
2065 /* clear the current cipher */
2066 ssl_clear_cipher_ctx(s);
2067 }
2068
2069int ssl_undefined_function(SSL *s)
2070 {
2071 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2072 return(0);
2073 }
2074
2075int ssl_undefined_void_function(void)
2076 {
2077 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2078 return(0);
2079 }
2080
2081int ssl_undefined_const_function(const SSL *s)
2082 {
2083 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2084 return(0);
2085 }
2086
2087SSL_METHOD *ssl_bad_method(int ver)
2088 {
2089 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2090 return(NULL);
2091 }
2092
2093const char *SSL_get_version(const SSL *s)
2094 {
2095 if (s->version == TLS1_VERSION)
2096 return("TLSv1");
2097 else if (s->version == SSL3_VERSION)
2098 return("SSLv3");
2099 else if (s->version == SSL2_VERSION)
2100 return("SSLv2");
2101 else
2102 return("unknown");
2103 }
2104
2105SSL *SSL_dup(SSL *s)
2106 {
2107 STACK_OF(X509_NAME) *sk;
2108 X509_NAME *xn;
2109 SSL *ret;
2110 int i;
2111
2112 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2113 return(NULL);
2114
2115 ret->version = s->version;
2116 ret->type = s->type;
2117 ret->method = s->method;
2118
2119 if (s->session != NULL)
2120 {
2121 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2122 SSL_copy_session_id(ret,s);
2123 }
2124 else
2125 {
2126 /* No session has been established yet, so we have to expect
2127 * that s->cert or ret->cert will be changed later --
2128 * they should not both point to the same object,
2129 * and thus we can't use SSL_copy_session_id. */
2130
2131 ret->method->ssl_free(ret);
2132 ret->method = s->method;
2133 ret->method->ssl_new(ret);
2134
2135 if (s->cert != NULL)
2136 {
2137 if (ret->cert != NULL)
2138 {
2139 ssl_cert_free(ret->cert);
2140 }
2141 ret->cert = ssl_cert_dup(s->cert);
2142 if (ret->cert == NULL)
2143 goto err;
2144 }
2145
2146 SSL_set_session_id_context(ret,
2147 s->sid_ctx, s->sid_ctx_length);
2148 }
2149
2150 ret->options=s->options;
2151 ret->mode=s->mode;
2152 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
2153 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
2154 ret->msg_callback = s->msg_callback;
2155 ret->msg_callback_arg = s->msg_callback_arg;
2156 SSL_set_verify(ret,SSL_get_verify_mode(s),
2157 SSL_get_verify_callback(s));
2158 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
2159 ret->generate_session_id = s->generate_session_id;
2160
2161 SSL_set_info_callback(ret,SSL_get_info_callback(s));
2162
2163 ret->debug=s->debug;
2164
2165 /* copy app data, a little dangerous perhaps */
2166 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2167 goto err;
2168
2169 /* setup rbio, and wbio */
2170 if (s->rbio != NULL)
2171 {
2172 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
2173 goto err;
2174 }
2175 if (s->wbio != NULL)
2176 {
2177 if (s->wbio != s->rbio)
2178 {
2179 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
2180 goto err;
2181 }
2182 else
2183 ret->wbio=ret->rbio;
2184 }
2185 ret->rwstate = s->rwstate;
2186 ret->in_handshake = s->in_handshake;
2187 ret->handshake_func = s->handshake_func;
2188 ret->server = s->server;
2189 ret->new_session = s->new_session;
2190 ret->quiet_shutdown = s->quiet_shutdown;
2191 ret->shutdown=s->shutdown;
2192 ret->state=s->state; /* SSL_dup does not really work at any state, though */
2193 ret->rstate=s->rstate;
2194 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2195 ret->hit=s->hit;
2196
2197 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2198
2199 /* dup the cipher_list and cipher_list_by_id stacks */
2200 if (s->cipher_list != NULL)
2201 {
2202 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2203 goto err;
2204 }
2205 if (s->cipher_list_by_id != NULL)
2206 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2207 == NULL)
2208 goto err;
2209
2210 /* Dup the client_CA list */
2211 if (s->client_CA != NULL)
2212 {
2213 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2214 ret->client_CA=sk;
2215 for (i=0; i<sk_X509_NAME_num(sk); i++)
2216 {
2217 xn=sk_X509_NAME_value(sk,i);
2218 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
2219 {
2220 X509_NAME_free(xn);
2221 goto err;
2222 }
2223 }
2224 }
2225
2226 if (0)
2227 {
2228err:
2229 if (ret != NULL) SSL_free(ret);
2230 ret=NULL;
2231 }
2232 return(ret);
2233 }
2234
2235void ssl_clear_cipher_ctx(SSL *s)
2236 {
2237 if (s->enc_read_ctx != NULL)
2238 {
2239 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2240 OPENSSL_free(s->enc_read_ctx);
2241 s->enc_read_ctx=NULL;
2242 }
2243 if (s->enc_write_ctx != NULL)
2244 {
2245 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2246 OPENSSL_free(s->enc_write_ctx);
2247 s->enc_write_ctx=NULL;
2248 }
5bd86ce5 2249#ifndef OPENSSL_NO_COMP
56276539
SS
2250 if (s->expand != NULL)
2251 {
2252 COMP_CTX_free(s->expand);
2253 s->expand=NULL;
2254 }
2255 if (s->compress != NULL)
2256 {
2257 COMP_CTX_free(s->compress);
2258 s->compress=NULL;
2259 }
5bd86ce5 2260#endif
56276539
SS
2261 }
2262
2263/* Fix this function so that it takes an optional type parameter */
2264X509 *SSL_get_certificate(const SSL *s)
2265 {
2266 if (s->cert != NULL)
2267 return(s->cert->key->x509);
2268 else
2269 return(NULL);
2270 }
2271
2272/* Fix this function so that it takes an optional type parameter */
2273EVP_PKEY *SSL_get_privatekey(SSL *s)
2274 {
2275 if (s->cert != NULL)
2276 return(s->cert->key->privatekey);
2277 else
2278 return(NULL);
2279 }
2280
2281SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2282 {
2283 if ((s->session != NULL) && (s->session->cipher != NULL))
2284 return(s->session->cipher);
2285 return(NULL);
2286 }
5bd86ce5
SS
2287#ifdef OPENSSL_NO_COMP
2288const void *SSL_get_current_compression(SSL *s)
2289 {
2290 return NULL;
2291 }
2292const void *SSL_get_current_expansion(SSL *s)
2293 {
2294 return NULL;
2295 }
2296#else
56276539
SS
2297
2298const COMP_METHOD *SSL_get_current_compression(SSL *s)
2299 {
2300 if (s->compress != NULL)
2301 return(s->compress->meth);
2302 return(NULL);
2303 }
2304
2305const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2306 {
2307 if (s->expand != NULL)
2308 return(s->expand->meth);
2309 return(NULL);
2310 }
5bd86ce5 2311#endif
56276539
SS
2312
2313int ssl_init_wbio_buffer(SSL *s,int push)
2314 {
2315 BIO *bbio;
2316
2317 if (s->bbio == NULL)
2318 {
2319 bbio=BIO_new(BIO_f_buffer());
2320 if (bbio == NULL) return(0);
2321 s->bbio=bbio;
2322 }
2323 else
2324 {
2325 bbio=s->bbio;
2326 if (s->bbio == s->wbio)
2327 s->wbio=BIO_pop(s->wbio);
2328 }
2329 (void)BIO_reset(bbio);
2330/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2331 if (!BIO_set_read_buffer_size(bbio,1))
2332 {
2333 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
2334 return(0);
2335 }
2336 if (push)
2337 {
2338 if (s->wbio != bbio)
2339 s->wbio=BIO_push(bbio,s->wbio);
2340 }
2341 else
2342 {
2343 if (s->wbio == bbio)
2344 s->wbio=BIO_pop(bbio);
2345 }
2346 return(1);
2347 }
2348
2349void ssl_free_wbio_buffer(SSL *s)
2350 {
2351 if (s->bbio == NULL) return;
2352
2353 if (s->bbio == s->wbio)
2354 {
2355 /* remove buffering */
2356 s->wbio=BIO_pop(s->wbio);
2357#ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2358 assert(s->wbio != NULL);
2359#endif
2360 }
2361 BIO_free(s->bbio);
2362 s->bbio=NULL;
2363 }
2364
2365void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
2366 {
2367 ctx->quiet_shutdown=mode;
2368 }
2369
2370int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2371 {
2372 return(ctx->quiet_shutdown);
2373 }
2374
2375void SSL_set_quiet_shutdown(SSL *s,int mode)
2376 {
2377 s->quiet_shutdown=mode;
2378 }
2379
2380int SSL_get_quiet_shutdown(const SSL *s)
2381 {
2382 return(s->quiet_shutdown);
2383 }
2384
2385void SSL_set_shutdown(SSL *s,int mode)
2386 {
2387 s->shutdown=mode;
2388 }
2389
2390int SSL_get_shutdown(const SSL *s)
2391 {
2392 return(s->shutdown);
2393 }
2394
2395int SSL_version(const SSL *s)
2396 {
2397 return(s->version);
2398 }
2399
2400SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2401 {
2402 return(ssl->ctx);
2403 }
2404
2405#ifndef OPENSSL_NO_STDIO
2406int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2407 {
2408 return(X509_STORE_set_default_paths(ctx->cert_store));
2409 }
2410
2411int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2412 const char *CApath)
2413 {
2414 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
2415 }
2416#endif
2417
2418void SSL_set_info_callback(SSL *ssl,
e40c9513 2419 void (*cb)(const SSL *ssl,int type,int val))
56276539
SS
2420 {
2421 ssl->info_callback=cb;
2422 }
2423
2424/* One compiler (Diab DCC) doesn't like argument names in returned
2425 function pointer. */
e40c9513 2426void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
56276539
SS
2427 {
2428 return ssl->info_callback;
2429 }
2430
2431int SSL_state(const SSL *ssl)
2432 {
2433 return(ssl->state);
2434 }
2435
2436void SSL_set_verify_result(SSL *ssl,long arg)
2437 {
2438 ssl->verify_result=arg;
2439 }
2440
2441long SSL_get_verify_result(const SSL *ssl)
2442 {
2443 return(ssl->verify_result);
2444 }
2445
2446int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2447 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2448 {
2449 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2450 new_func, dup_func, free_func);
2451 }
2452
2453int SSL_set_ex_data(SSL *s,int idx,void *arg)
2454 {
2455 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2456 }
2457
2458void *SSL_get_ex_data(const SSL *s,int idx)
2459 {
2460 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2461 }
2462
2463int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2464 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2465 {
2466 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2467 new_func, dup_func, free_func);
2468 }
2469
2470int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
2471 {
2472 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2473 }
2474
2475void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
2476 {
2477 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2478 }
2479
2480int ssl_ok(SSL *s)
2481 {
2482 return(1);
2483 }
2484
2485X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
2486 {
2487 return(ctx->cert_store);
2488 }
2489
2490void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
2491 {
2492 if (ctx->cert_store != NULL)
2493 X509_STORE_free(ctx->cert_store);
2494 ctx->cert_store=store;
2495 }
2496
2497int SSL_want(const SSL *s)
2498 {
2499 return(s->rwstate);
2500 }
2501
2502/*!
2503 * \brief Set the callback for generating temporary RSA keys.
2504 * \param ctx the SSL context.
2505 * \param cb the callback
2506 */
2507
2508#ifndef OPENSSL_NO_RSA
2509void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2510 int is_export,
2511 int keylength))
2512 {
2513 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
2514 }
2515
2516void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2517 int is_export,
2518 int keylength))
2519 {
2520 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
2521 }
2522#endif
2523
2524#ifdef DOXYGEN
2525/*!
2526 * \brief The RSA temporary key callback function.
2527 * \param ssl the SSL session.
2528 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2529 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2530 * of the required key in bits.
2531 * \return the temporary RSA key.
2532 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2533 */
2534
2535RSA *cb(SSL *ssl,int is_export,int keylength)
2536 {}
2537#endif
2538
2539/*!
2540 * \brief Set the callback for generating temporary DH keys.
2541 * \param ctx the SSL context.
2542 * \param dh the callback
2543 */
2544
2545#ifndef OPENSSL_NO_DH
2546void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2547 int keylength))
2548 {
2549 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
2550 }
2551
2552void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2553 int keylength))
2554 {
2555 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
2556 }
2557#endif
2558
2559#ifndef OPENSSL_NO_ECDH
2560void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
2561 int keylength))
2562 {
2563 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
2564 }
2565
2566void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
2567 int keylength))
2568 {
2569 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
2570 }
2571#endif
2572
2573
2574void 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))
2575 {
2576 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
2577 }
2578void 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))
2579 {
2580 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
2581 }
2582
2583
2584
2585#if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
2586#include "../crypto/bio/bss_file.c"
2587#endif
2588
2589IMPLEMENT_STACK_OF(SSL_CIPHER)
2590IMPLEMENT_STACK_OF(SSL_COMP)