Import OpenSSL 0.9.8h.
[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>
e6bc27f5 128#include <openssl/rand.h>
2e6ca3d0 129#include <openssl/ocsp.h>
5bd86ce5 130#ifndef OPENSSL_NO_DH
56276539 131#include <openssl/dh.h>
5bd86ce5 132#endif
56276539
SS
133
134const char *SSL_version_str=OPENSSL_VERSION_TEXT;
135
136SSL3_ENC_METHOD ssl3_undef_enc_method={
137 /* evil casts, but these functions are only called if there's a library bug */
138 (int (*)(SSL *,int))ssl_undefined_function,
139 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
140 ssl_undefined_function,
141 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
142 (int (*)(SSL*, int))ssl_undefined_function,
5bd86ce5
SS
143 (int (*)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char*, int, unsigned char *))ssl_undefined_function,
144 0, /* finish_mac_length */
145 (int (*)(SSL *, EVP_MD_CTX *, unsigned char *))ssl_undefined_function,
146 NULL, /* client_finished_label */
147 0, /* client_finished_label_len */
148 NULL, /* server_finished_label */
149 0, /* server_finished_label_len */
150 (int (*)(int))ssl_undefined_function
56276539
SS
151 };
152
153int SSL_clear(SSL *s)
154 {
155
156 if (s->method == NULL)
157 {
158 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
159 return(0);
160 }
161
162 if (ssl_clear_bad_session(s))
163 {
164 SSL_SESSION_free(s->session);
165 s->session=NULL;
166 }
167
168 s->error=0;
169 s->hit=0;
170 s->shutdown=0;
171
172#if 0 /* Disabled since version 1.10 of this file (early return not
173 * needed because SSL_clear is not called when doing renegotiation) */
174 /* This is set if we are doing dynamic renegotiation so keep
175 * the old cipher. It is sort of a SSL_clear_lite :-) */
176 if (s->new_session) return(1);
177#else
178 if (s->new_session)
179 {
180 SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR);
181 return 0;
182 }
183#endif
184
185 s->type=0;
186
187 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
188
189 s->version=s->method->version;
190 s->client_version=s->version;
191 s->rwstate=SSL_NOTHING;
192 s->rstate=SSL_ST_READ_HEADER;
193#if 0
194 s->read_ahead=s->ctx->read_ahead;
195#endif
196
197 if (s->init_buf != NULL)
198 {
199 BUF_MEM_free(s->init_buf);
200 s->init_buf=NULL;
201 }
202
203 ssl_clear_cipher_ctx(s);
204
205 s->first_packet=0;
206
207#if 1
208 /* Check to see if we were changed into a different method, if
209 * so, revert back if we are not doing session-id reuse. */
210 if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method))
211 {
212 s->method->ssl_free(s);
213 s->method=s->ctx->method;
214 if (!s->method->ssl_new(s))
215 return(0);
216 }
217 else
218#endif
219 s->method->ssl_clear(s);
220 return(1);
221 }
222
223/** Used to change an SSL_CTXs default SSL method type */
224int SSL_CTX_set_ssl_version(SSL_CTX *ctx,SSL_METHOD *meth)
225 {
226 STACK_OF(SSL_CIPHER) *sk;
227
228 ctx->method=meth;
229
230 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
231 &(ctx->cipher_list_by_id),SSL_DEFAULT_CIPHER_LIST);
232 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
233 {
234 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
235 return(0);
236 }
237 return(1);
238 }
239
240SSL *SSL_new(SSL_CTX *ctx)
241 {
242 SSL *s;
243
244 if (ctx == NULL)
245 {
246 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
247 return(NULL);
248 }
249 if (ctx->method == NULL)
250 {
251 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
252 return(NULL);
253 }
254
255 s=(SSL *)OPENSSL_malloc(sizeof(SSL));
256 if (s == NULL) goto err;
257 memset(s,0,sizeof(SSL));
258
259#ifndef OPENSSL_NO_KRB5
260 s->kssl_ctx = kssl_ctx_new();
261#endif /* OPENSSL_NO_KRB5 */
262
263 s->options=ctx->options;
264 s->mode=ctx->mode;
265 s->max_cert_list=ctx->max_cert_list;
266
267 if (ctx->cert != NULL)
268 {
269 /* Earlier library versions used to copy the pointer to
270 * the CERT, not its contents; only when setting new
271 * parameters for the per-SSL copy, ssl_cert_new would be
272 * called (and the direct reference to the per-SSL_CTX
273 * settings would be lost, but those still were indirectly
274 * accessed for various purposes, and for that reason they
275 * used to be known as s->ctx->default_cert).
276 * Now we don't look at the SSL_CTX's CERT after having
277 * duplicated it once. */
278
279 s->cert = ssl_cert_dup(ctx->cert);
280 if (s->cert == NULL)
281 goto err;
282 }
283 else
284 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
285
286 s->read_ahead=ctx->read_ahead;
287 s->msg_callback=ctx->msg_callback;
288 s->msg_callback_arg=ctx->msg_callback_arg;
289 s->verify_mode=ctx->verify_mode;
290#if 0
291 s->verify_depth=ctx->verify_depth;
292#endif
293 s->sid_ctx_length=ctx->sid_ctx_length;
294 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
295 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
296 s->verify_callback=ctx->default_verify_callback;
297 s->generate_session_id=ctx->generate_session_id;
298
299 s->param = X509_VERIFY_PARAM_new();
300 if (!s->param)
301 goto err;
302 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
303#if 0
304 s->purpose = ctx->purpose;
305 s->trust = ctx->trust;
306#endif
307 s->quiet_shutdown=ctx->quiet_shutdown;
308
309 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
310 s->ctx=ctx;
e6bc27f5
PA
311#ifndef OPENSSL_NO_TLSEXT
312 s->tlsext_debug_cb = 0;
313 s->tlsext_debug_arg = NULL;
314 s->tlsext_ticket_expected = 0;
2e6ca3d0
PA
315 s->tlsext_status_type = -1;
316 s->tlsext_status_expected = 0;
317 s->tlsext_ocsp_ids = NULL;
318 s->tlsext_ocsp_exts = NULL;
319 s->tlsext_ocsp_resp = NULL;
320 s->tlsext_ocsp_resplen = -1;
e6bc27f5
PA
321 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
322 s->initial_ctx=ctx;
323#endif
56276539
SS
324 s->verify_result=X509_V_OK;
325
326 s->method=ctx->method;
327
328 if (!s->method->ssl_new(s))
329 goto err;
330
331 s->references=1;
332 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
333
334 SSL_clear(s);
335
336 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
337
338 return(s);
339err:
340 if (s != NULL)
341 {
342 if (s->cert != NULL)
343 ssl_cert_free(s->cert);
344 if (s->ctx != NULL)
345 SSL_CTX_free(s->ctx); /* decrement reference count */
346 OPENSSL_free(s);
347 }
348 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
349 return(NULL);
350 }
351
352int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
353 unsigned int sid_ctx_len)
354 {
355 if(sid_ctx_len > sizeof ctx->sid_ctx)
356 {
357 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
358 return 0;
359 }
360 ctx->sid_ctx_length=sid_ctx_len;
361 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
362
363 return 1;
364 }
365
366int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
367 unsigned int sid_ctx_len)
368 {
369 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
370 {
371 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
372 return 0;
373 }
374 ssl->sid_ctx_length=sid_ctx_len;
375 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
376
377 return 1;
378 }
379
380int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
381 {
382 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
383 ctx->generate_session_id = cb;
384 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
385 return 1;
386 }
387
388int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
389 {
390 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
391 ssl->generate_session_id = cb;
392 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
393 return 1;
394 }
395
396int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
397 unsigned int id_len)
398 {
399 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
400 * we can "construct" a session to give us the desired check - ie. to
401 * find if there's a session in the hash table that would conflict with
402 * any new session built out of this id/id_len and the ssl_version in
403 * use by this SSL. */
404 SSL_SESSION r, *p;
405
406 if(id_len > sizeof r.session_id)
407 return 0;
408
409 r.ssl_version = ssl->version;
410 r.session_id_length = id_len;
411 memcpy(r.session_id, id, id_len);
412 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
413 * callback is calling us to check the uniqueness of a shorter ID, it
414 * must be compared as a padded-out ID because that is what it will be
415 * converted to when the callback has finished choosing it. */
416 if((r.ssl_version == SSL2_VERSION) &&
417 (id_len < SSL2_SSL_SESSION_ID_LENGTH))
418 {
419 memset(r.session_id + id_len, 0,
420 SSL2_SSL_SESSION_ID_LENGTH - id_len);
421 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
422 }
423
424 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
425 p = (SSL_SESSION *)lh_retrieve(ssl->ctx->sessions, &r);
426 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
427 return (p != NULL);
428 }
429
430int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
431 {
432 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
433 }
434
435int SSL_set_purpose(SSL *s, int purpose)
436 {
437 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
438 }
439
440int SSL_CTX_set_trust(SSL_CTX *s, int trust)
441 {
442 return X509_VERIFY_PARAM_set_trust(s->param, trust);
443 }
444
445int SSL_set_trust(SSL *s, int trust)
446 {
447 return X509_VERIFY_PARAM_set_trust(s->param, trust);
448 }
449
450void SSL_free(SSL *s)
451 {
452 int i;
453
454 if(s == NULL)
455 return;
456
457 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
458#ifdef REF_PRINT
459 REF_PRINT("SSL",s);
460#endif
461 if (i > 0) return;
462#ifdef REF_CHECK
463 if (i < 0)
464 {
465 fprintf(stderr,"SSL_free, bad reference count\n");
466 abort(); /* ok */
467 }
468#endif
469
470 if (s->param)
471 X509_VERIFY_PARAM_free(s->param);
472
473 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
474
475 if (s->bbio != NULL)
476 {
477 /* If the buffering BIO is in place, pop it off */
478 if (s->bbio == s->wbio)
479 {
480 s->wbio=BIO_pop(s->wbio);
481 }
482 BIO_free(s->bbio);
483 s->bbio=NULL;
484 }
485 if (s->rbio != NULL)
486 BIO_free_all(s->rbio);
487 if ((s->wbio != NULL) && (s->wbio != s->rbio))
488 BIO_free_all(s->wbio);
489
490 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
491
492 /* add extra stuff */
493 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
494 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
495
496 /* Make the next call work :-) */
497 if (s->session != NULL)
498 {
499 ssl_clear_bad_session(s);
500 SSL_SESSION_free(s->session);
501 }
502
503 ssl_clear_cipher_ctx(s);
504
505 if (s->cert != NULL) ssl_cert_free(s->cert);
506 /* Free up if allocated */
507
508 if (s->ctx) SSL_CTX_free(s->ctx);
e6bc27f5
PA
509#ifndef OPENSSL_NO_TLSEXT
510 if (s->initial_ctx) SSL_CTX_free(s->initial_ctx);
2e6ca3d0
PA
511 if (s->tlsext_ocsp_exts)
512 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts,
513 X509_EXTENSION_free);
514 if (s->tlsext_ocsp_ids)
515 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
516 if (s->tlsext_ocsp_resp)
517 OPENSSL_free(s->tlsext_ocsp_resp);
e6bc27f5 518#endif
56276539
SS
519 if (s->client_CA != NULL)
520 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
521
522 if (s->method != NULL) s->method->ssl_free(s);
523
524#ifndef OPENSSL_NO_KRB5
525 if (s->kssl_ctx != NULL)
526 kssl_ctx_free(s->kssl_ctx);
527#endif /* OPENSSL_NO_KRB5 */
528
529 OPENSSL_free(s);
530 }
531
532void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
533 {
534 /* If the output buffering BIO is still in place, remove it
535 */
536 if (s->bbio != NULL)
537 {
538 if (s->wbio == s->bbio)
539 {
540 s->wbio=s->wbio->next_bio;
541 s->bbio->next_bio=NULL;
542 }
543 }
544 if ((s->rbio != NULL) && (s->rbio != rbio))
545 BIO_free_all(s->rbio);
546 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
547 BIO_free_all(s->wbio);
548 s->rbio=rbio;
549 s->wbio=wbio;
550 }
551
552BIO *SSL_get_rbio(const SSL *s)
553 { return(s->rbio); }
554
555BIO *SSL_get_wbio(const SSL *s)
556 { return(s->wbio); }
557
558int SSL_get_fd(const SSL *s)
559 {
560 return(SSL_get_rfd(s));
561 }
562
563int SSL_get_rfd(const SSL *s)
564 {
565 int ret= -1;
566 BIO *b,*r;
567
568 b=SSL_get_rbio(s);
569 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
570 if (r != NULL)
571 BIO_get_fd(r,&ret);
572 return(ret);
573 }
574
575int SSL_get_wfd(const SSL *s)
576 {
577 int ret= -1;
578 BIO *b,*r;
579
580 b=SSL_get_wbio(s);
581 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
582 if (r != NULL)
583 BIO_get_fd(r,&ret);
584 return(ret);
585 }
586
587#ifndef OPENSSL_NO_SOCK
588int SSL_set_fd(SSL *s,int fd)
589 {
590 int ret=0;
591 BIO *bio=NULL;
592
593 bio=BIO_new(BIO_s_socket());
594
595 if (bio == NULL)
596 {
597 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
598 goto err;
599 }
600 BIO_set_fd(bio,fd,BIO_NOCLOSE);
601 SSL_set_bio(s,bio,bio);
602 ret=1;
603err:
604 return(ret);
605 }
606
607int SSL_set_wfd(SSL *s,int fd)
608 {
609 int ret=0;
610 BIO *bio=NULL;
611
612 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
613 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
614 {
615 bio=BIO_new(BIO_s_socket());
616
617 if (bio == NULL)
618 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
619 BIO_set_fd(bio,fd,BIO_NOCLOSE);
620 SSL_set_bio(s,SSL_get_rbio(s),bio);
621 }
622 else
623 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
624 ret=1;
625err:
626 return(ret);
627 }
628
629int SSL_set_rfd(SSL *s,int fd)
630 {
631 int ret=0;
632 BIO *bio=NULL;
633
634 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
635 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
636 {
637 bio=BIO_new(BIO_s_socket());
638
639 if (bio == NULL)
640 {
641 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
642 goto err;
643 }
644 BIO_set_fd(bio,fd,BIO_NOCLOSE);
645 SSL_set_bio(s,bio,SSL_get_wbio(s));
646 }
647 else
648 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
649 ret=1;
650err:
651 return(ret);
652 }
653#endif
654
655
656/* return length of latest Finished message we sent, copy to 'buf' */
657size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
658 {
659 size_t ret = 0;
660
661 if (s->s3 != NULL)
662 {
663 ret = s->s3->tmp.finish_md_len;
664 if (count > ret)
665 count = ret;
666 memcpy(buf, s->s3->tmp.finish_md, count);
667 }
668 return ret;
669 }
670
671/* return length of latest Finished message we expected, copy to 'buf' */
672size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
673 {
674 size_t ret = 0;
675
676 if (s->s3 != NULL)
677 {
678 ret = s->s3->tmp.peer_finish_md_len;
679 if (count > ret)
680 count = ret;
681 memcpy(buf, s->s3->tmp.peer_finish_md, count);
682 }
683 return ret;
684 }
685
686
687int SSL_get_verify_mode(const SSL *s)
688 {
689 return(s->verify_mode);
690 }
691
692int SSL_get_verify_depth(const SSL *s)
693 {
694 return X509_VERIFY_PARAM_get_depth(s->param);
695 }
696
697int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *)
698 {
699 return(s->verify_callback);
700 }
701
702int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
703 {
704 return(ctx->verify_mode);
705 }
706
707int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
708 {
709 return X509_VERIFY_PARAM_get_depth(ctx->param);
710 }
711
712int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *)
713 {
714 return(ctx->default_verify_callback);
715 }
716
717void SSL_set_verify(SSL *s,int mode,
718 int (*callback)(int ok,X509_STORE_CTX *ctx))
719 {
720 s->verify_mode=mode;
721 if (callback != NULL)
722 s->verify_callback=callback;
723 }
724
725void SSL_set_verify_depth(SSL *s,int depth)
726 {
727 X509_VERIFY_PARAM_set_depth(s->param, depth);
728 }
729
730void SSL_set_read_ahead(SSL *s,int yes)
731 {
732 s->read_ahead=yes;
733 }
734
735int SSL_get_read_ahead(const SSL *s)
736 {
737 return(s->read_ahead);
738 }
739
740int SSL_pending(const SSL *s)
741 {
742 /* SSL_pending cannot work properly if read-ahead is enabled
743 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
744 * and it is impossible to fix since SSL_pending cannot report
745 * errors that may be observed while scanning the new data.
746 * (Note that SSL_pending() is often used as a boolean value,
747 * so we'd better not return -1.)
748 */
749 return(s->method->ssl_pending(s));
750 }
751
752X509 *SSL_get_peer_certificate(const SSL *s)
753 {
754 X509 *r;
755
756 if ((s == NULL) || (s->session == NULL))
757 r=NULL;
758 else
759 r=s->session->peer;
760
761 if (r == NULL) return(r);
762
763 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
764
765 return(r);
766 }
767
768STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
769 {
770 STACK_OF(X509) *r;
771
772 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
773 r=NULL;
774 else
775 r=s->session->sess_cert->cert_chain;
776
777 /* If we are a client, cert_chain includes the peer's own
778 * certificate; if we are a server, it does not. */
779
780 return(r);
781 }
782
783/* Now in theory, since the calling process own 't' it should be safe to
784 * modify. We need to be able to read f without being hassled */
785void SSL_copy_session_id(SSL *t,const SSL *f)
786 {
787 CERT *tmp;
788
789 /* Do we need to to SSL locking? */
790 SSL_set_session(t,SSL_get_session(f));
791
792 /* what if we are setup as SSLv2 but want to talk SSLv3 or
793 * vice-versa */
794 if (t->method != f->method)
795 {
796 t->method->ssl_free(t); /* cleanup current */
797 t->method=f->method; /* change method */
798 t->method->ssl_new(t); /* setup new */
799 }
800
801 tmp=t->cert;
802 if (f->cert != NULL)
803 {
804 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
805 t->cert=f->cert;
806 }
807 else
808 t->cert=NULL;
809 if (tmp != NULL) ssl_cert_free(tmp);
810 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
811 }
812
813/* Fix this so it checks all the valid key/cert options */
814int SSL_CTX_check_private_key(const SSL_CTX *ctx)
815 {
816 if ( (ctx == NULL) ||
817 (ctx->cert == NULL) ||
818 (ctx->cert->key->x509 == NULL))
819 {
820 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
821 return(0);
822 }
823 if (ctx->cert->key->privatekey == NULL)
824 {
825 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
826 return(0);
827 }
828 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
829 }
830
831/* Fix this function so that it takes an optional type parameter */
832int SSL_check_private_key(const SSL *ssl)
833 {
834 if (ssl == NULL)
835 {
836 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
837 return(0);
838 }
839 if (ssl->cert == NULL)
840 {
841 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
842 return 0;
843 }
844 if (ssl->cert->key->x509 == NULL)
845 {
846 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
847 return(0);
848 }
849 if (ssl->cert->key->privatekey == NULL)
850 {
851 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
852 return(0);
853 }
854 return(X509_check_private_key(ssl->cert->key->x509,
855 ssl->cert->key->privatekey));
856 }
857
858int SSL_accept(SSL *s)
859 {
860 if (s->handshake_func == 0)
861 /* Not properly initialized yet */
862 SSL_set_accept_state(s);
863
864 return(s->method->ssl_accept(s));
865 }
866
867int SSL_connect(SSL *s)
868 {
869 if (s->handshake_func == 0)
870 /* Not properly initialized yet */
871 SSL_set_connect_state(s);
872
873 return(s->method->ssl_connect(s));
874 }
875
876long SSL_get_default_timeout(const SSL *s)
877 {
878 return(s->method->get_timeout());
879 }
880
881int SSL_read(SSL *s,void *buf,int num)
882 {
883 if (s->handshake_func == 0)
884 {
885 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
886 return -1;
887 }
888
889 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
890 {
891 s->rwstate=SSL_NOTHING;
892 return(0);
893 }
894 return(s->method->ssl_read(s,buf,num));
895 }
896
897int SSL_peek(SSL *s,void *buf,int num)
898 {
899 if (s->handshake_func == 0)
900 {
901 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
902 return -1;
903 }
904
905 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
906 {
907 return(0);
908 }
909 return(s->method->ssl_peek(s,buf,num));
910 }
911
912int SSL_write(SSL *s,const void *buf,int num)
913 {
914 if (s->handshake_func == 0)
915 {
916 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
917 return -1;
918 }
919
920 if (s->shutdown & SSL_SENT_SHUTDOWN)
921 {
922 s->rwstate=SSL_NOTHING;
923 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
924 return(-1);
925 }
926 return(s->method->ssl_write(s,buf,num));
927 }
928
929int SSL_shutdown(SSL *s)
930 {
931 /* Note that this function behaves differently from what one might
932 * expect. Return values are 0 for no success (yet),
933 * 1 for success; but calling it once is usually not enough,
934 * even if blocking I/O is used (see ssl3_shutdown).
935 */
936
937 if (s->handshake_func == 0)
938 {
939 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
940 return -1;
941 }
942
943 if ((s != NULL) && !SSL_in_init(s))
944 return(s->method->ssl_shutdown(s));
945 else
946 return(1);
947 }
948
949int SSL_renegotiate(SSL *s)
950 {
951 if (s->new_session == 0)
952 {
953 s->new_session=1;
954 }
955 return(s->method->ssl_renegotiate(s));
956 }
957
958int SSL_renegotiate_pending(SSL *s)
959 {
960 /* becomes true when negotiation is requested;
961 * false again once a handshake has finished */
962 return (s->new_session != 0);
963 }
964
965long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
966 {
967 long l;
968
969 switch (cmd)
970 {
971 case SSL_CTRL_GET_READ_AHEAD:
972 return(s->read_ahead);
973 case SSL_CTRL_SET_READ_AHEAD:
974 l=s->read_ahead;
975 s->read_ahead=larg;
976 return(l);
977
978 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
979 s->msg_callback_arg = parg;
980 return 1;
981
982 case SSL_CTRL_OPTIONS:
983 return(s->options|=larg);
984 case SSL_CTRL_MODE:
985 return(s->mode|=larg);
986 case SSL_CTRL_GET_MAX_CERT_LIST:
987 return(s->max_cert_list);
988 case SSL_CTRL_SET_MAX_CERT_LIST:
989 l=s->max_cert_list;
990 s->max_cert_list=larg;
991 return(l);
992 case SSL_CTRL_SET_MTU:
993 if (SSL_version(s) == DTLS1_VERSION)
994 {
995 s->d1->mtu = larg;
996 return larg;
997 }
998 return 0;
999 default:
1000 return(s->method->ssl_ctrl(s,cmd,larg,parg));
1001 }
1002 }
1003
1004long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
1005 {
1006 switch(cmd)
1007 {
1008 case SSL_CTRL_SET_MSG_CALLBACK:
1009 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1010 return 1;
1011
1012 default:
1013 return(s->method->ssl_callback_ctrl(s,cmd,fp));
1014 }
1015 }
1016
1017struct lhash_st *SSL_CTX_sessions(SSL_CTX *ctx)
1018 {
1019 return ctx->sessions;
1020 }
1021
1022long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
1023 {
1024 long l;
1025
1026 switch (cmd)
1027 {
1028 case SSL_CTRL_GET_READ_AHEAD:
1029 return(ctx->read_ahead);
1030 case SSL_CTRL_SET_READ_AHEAD:
1031 l=ctx->read_ahead;
1032 ctx->read_ahead=larg;
1033 return(l);
1034
1035 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1036 ctx->msg_callback_arg = parg;
1037 return 1;
1038
1039 case SSL_CTRL_GET_MAX_CERT_LIST:
1040 return(ctx->max_cert_list);
1041 case SSL_CTRL_SET_MAX_CERT_LIST:
1042 l=ctx->max_cert_list;
1043 ctx->max_cert_list=larg;
1044 return(l);
1045
1046 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1047 l=ctx->session_cache_size;
1048 ctx->session_cache_size=larg;
1049 return(l);
1050 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1051 return(ctx->session_cache_size);
1052 case SSL_CTRL_SET_SESS_CACHE_MODE:
1053 l=ctx->session_cache_mode;
1054 ctx->session_cache_mode=larg;
1055 return(l);
1056 case SSL_CTRL_GET_SESS_CACHE_MODE:
1057 return(ctx->session_cache_mode);
1058
1059 case SSL_CTRL_SESS_NUMBER:
1060 return(ctx->sessions->num_items);
1061 case SSL_CTRL_SESS_CONNECT:
1062 return(ctx->stats.sess_connect);
1063 case SSL_CTRL_SESS_CONNECT_GOOD:
1064 return(ctx->stats.sess_connect_good);
1065 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1066 return(ctx->stats.sess_connect_renegotiate);
1067 case SSL_CTRL_SESS_ACCEPT:
1068 return(ctx->stats.sess_accept);
1069 case SSL_CTRL_SESS_ACCEPT_GOOD:
1070 return(ctx->stats.sess_accept_good);
1071 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1072 return(ctx->stats.sess_accept_renegotiate);
1073 case SSL_CTRL_SESS_HIT:
1074 return(ctx->stats.sess_hit);
1075 case SSL_CTRL_SESS_CB_HIT:
1076 return(ctx->stats.sess_cb_hit);
1077 case SSL_CTRL_SESS_MISSES:
1078 return(ctx->stats.sess_miss);
1079 case SSL_CTRL_SESS_TIMEOUTS:
1080 return(ctx->stats.sess_timeout);
1081 case SSL_CTRL_SESS_CACHE_FULL:
1082 return(ctx->stats.sess_cache_full);
1083 case SSL_CTRL_OPTIONS:
1084 return(ctx->options|=larg);
1085 case SSL_CTRL_MODE:
1086 return(ctx->mode|=larg);
1087 default:
1088 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1089 }
1090 }
1091
1092long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1093 {
1094 switch(cmd)
1095 {
1096 case SSL_CTRL_SET_MSG_CALLBACK:
1097 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1098 return 1;
1099
1100 default:
1101 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1102 }
1103 }
1104
1105int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1106 {
1107 long l;
1108
1109 l=a->id-b->id;
1110 if (l == 0L)
1111 return(0);
1112 else
1113 return((l > 0)?1:-1);
1114 }
1115
1116int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1117 const SSL_CIPHER * const *bp)
1118 {
1119 long l;
1120
1121 l=(*ap)->id-(*bp)->id;
1122 if (l == 0L)
1123 return(0);
1124 else
1125 return((l > 0)?1:-1);
1126 }
1127
1128/** return a STACK of the ciphers available for the SSL and in order of
1129 * preference */
1130STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1131 {
1132 if (s != NULL)
1133 {
1134 if (s->cipher_list != NULL)
1135 {
1136 return(s->cipher_list);
1137 }
1138 else if ((s->ctx != NULL) &&
1139 (s->ctx->cipher_list != NULL))
1140 {
1141 return(s->ctx->cipher_list);
1142 }
1143 }
1144 return(NULL);
1145 }
1146
1147/** return a STACK of the ciphers available for the SSL and in order of
1148 * algorithm id */
1149STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1150 {
1151 if (s != NULL)
1152 {
1153 if (s->cipher_list_by_id != NULL)
1154 {
1155 return(s->cipher_list_by_id);
1156 }
1157 else if ((s->ctx != NULL) &&
1158 (s->ctx->cipher_list_by_id != NULL))
1159 {
1160 return(s->ctx->cipher_list_by_id);
1161 }
1162 }
1163 return(NULL);
1164 }
1165
1166/** The old interface to get the same thing as SSL_get_ciphers() */
1167const char *SSL_get_cipher_list(const SSL *s,int n)
1168 {
1169 SSL_CIPHER *c;
1170 STACK_OF(SSL_CIPHER) *sk;
1171
1172 if (s == NULL) return(NULL);
1173 sk=SSL_get_ciphers(s);
1174 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1175 return(NULL);
1176 c=sk_SSL_CIPHER_value(sk,n);
1177 if (c == NULL) return(NULL);
1178 return(c->name);
1179 }
1180
1181/** specify the ciphers to be used by default by the SSL_CTX */
1182int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1183 {
1184 STACK_OF(SSL_CIPHER) *sk;
1185
1186 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1187 &ctx->cipher_list_by_id,str);
1188 /* ssl_create_cipher_list may return an empty stack if it
1189 * was unable to find a cipher matching the given rule string
1190 * (for example if the rule string specifies a cipher which
1191 * has been disabled). This is not an error as far as
1192 * ssl_create_cipher_list is concerned, and hence
1193 * ctx->cipher_list and ctx->cipher_list_by_id has been
1194 * updated. */
1195 if (sk == NULL)
1196 return 0;
1197 else if (sk_SSL_CIPHER_num(sk) == 0)
1198 {
1199 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1200 return 0;
1201 }
1202 return 1;
1203 }
1204
1205/** specify the ciphers to be used by the SSL */
1206int SSL_set_cipher_list(SSL *s,const char *str)
1207 {
1208 STACK_OF(SSL_CIPHER) *sk;
1209
1210 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1211 &s->cipher_list_by_id,str);
1212 /* see comment in SSL_CTX_set_cipher_list */
1213 if (sk == NULL)
1214 return 0;
1215 else if (sk_SSL_CIPHER_num(sk) == 0)
1216 {
1217 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1218 return 0;
1219 }
1220 return 1;
1221 }
1222
1223/* works well for SSLv2, not so good for SSLv3 */
1224char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1225 {
1226 char *p;
56276539
SS
1227 STACK_OF(SSL_CIPHER) *sk;
1228 SSL_CIPHER *c;
1229 int i;
1230
1231 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1232 (len < 2))
1233 return(NULL);
1234
1235 p=buf;
1236 sk=s->session->ciphers;
1237 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1238 {
e6bc27f5
PA
1239 int n;
1240
56276539 1241 c=sk_SSL_CIPHER_value(sk,i);
e6bc27f5
PA
1242 n=strlen(c->name);
1243 if (n+1 > len)
56276539 1244 {
e6bc27f5
PA
1245 if (p != buf)
1246 --p;
1247 *p='\0';
1248 return buf;
56276539 1249 }
e6bc27f5
PA
1250 strcpy(p,c->name);
1251 p+=n;
56276539 1252 *(p++)=':';
e6bc27f5 1253 len-=n+1;
56276539
SS
1254 }
1255 p[-1]='\0';
1256 return(buf);
1257 }
1258
1259int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1260 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
1261 {
1262 int i,j=0;
1263 SSL_CIPHER *c;
1264 unsigned char *q;
1265#ifndef OPENSSL_NO_KRB5
1266 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx);
1267#endif /* OPENSSL_NO_KRB5 */
1268
1269 if (sk == NULL) return(0);
1270 q=p;
1271
1272 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1273 {
1274 c=sk_SSL_CIPHER_value(sk,i);
1275#ifndef OPENSSL_NO_KRB5
1276 if ((c->algorithms & SSL_KRB5) && nokrb5)
1277 continue;
1278#endif /* OPENSSL_NO_KRB5 */
1279
1280 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p);
1281 p+=j;
1282 }
1283 return(p-q);
1284 }
1285
1286STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1287 STACK_OF(SSL_CIPHER) **skp)
1288 {
1289 SSL_CIPHER *c;
1290 STACK_OF(SSL_CIPHER) *sk;
1291 int i,n;
1292
1293 n=ssl_put_cipher_by_char(s,NULL,NULL);
1294 if ((num%n) != 0)
1295 {
1296 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1297 return(NULL);
1298 }
1299 if ((skp == NULL) || (*skp == NULL))
1300 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1301 else
1302 {
1303 sk= *skp;
1304 sk_SSL_CIPHER_zero(sk);
1305 }
1306
1307 for (i=0; i<num; i+=n)
1308 {
1309 c=ssl_get_cipher_by_char(s,p);
1310 p+=n;
1311 if (c != NULL)
1312 {
1313 if (!sk_SSL_CIPHER_push(sk,c))
1314 {
1315 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1316 goto err;
1317 }
1318 }
1319 }
1320
1321 if (skp != NULL)
1322 *skp=sk;
1323 return(sk);
1324err:
1325 if ((skp == NULL) || (*skp == NULL))
1326 sk_SSL_CIPHER_free(sk);
1327 return(NULL);
1328 }
1329
e6bc27f5
PA
1330#ifndef OPENSSL_NO_TLSEXT
1331/** return a servername extension value if provided in Client Hello, or NULL.
1332 * So far, only host_name types are defined (RFC 3546).
1333 */
1334
1335const char *SSL_get_servername(const SSL *s, const int type)
1336 {
1337 if (type != TLSEXT_NAMETYPE_host_name)
1338 return NULL;
1339
1340 return s->session && !s->tlsext_hostname ?
1341 s->session->tlsext_hostname :
1342 s->tlsext_hostname;
1343 }
1344
1345int SSL_get_servername_type(const SSL *s)
1346 {
1347 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
1348 return TLSEXT_NAMETYPE_host_name;
1349 return -1;
1350 }
1351#endif
1352
56276539
SS
1353unsigned long SSL_SESSION_hash(const SSL_SESSION *a)
1354 {
1355 unsigned long l;
1356
1357 l=(unsigned long)
1358 ((unsigned int) a->session_id[0] )|
1359 ((unsigned int) a->session_id[1]<< 8L)|
1360 ((unsigned long)a->session_id[2]<<16L)|
1361 ((unsigned long)a->session_id[3]<<24L);
1362 return(l);
1363 }
1364
1365/* NB: If this function (or indeed the hash function which uses a sort of
1366 * coarser function than this one) is changed, ensure
1367 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1368 * able to construct an SSL_SESSION that will collide with any existing session
1369 * with a matching session ID. */
1370int SSL_SESSION_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
1371 {
1372 if (a->ssl_version != b->ssl_version)
1373 return(1);
1374 if (a->session_id_length != b->session_id_length)
1375 return(1);
1376 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1377 }
1378
1379/* These wrapper functions should remain rather than redeclaring
1380 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1381 * variable. The reason is that the functions aren't static, they're exposed via
1382 * ssl.h. */
1383static IMPLEMENT_LHASH_HASH_FN(SSL_SESSION_hash, SSL_SESSION *)
1384static IMPLEMENT_LHASH_COMP_FN(SSL_SESSION_cmp, SSL_SESSION *)
1385
1386SSL_CTX *SSL_CTX_new(SSL_METHOD *meth)
1387 {
1388 SSL_CTX *ret=NULL;
1389
1390 if (meth == NULL)
1391 {
1392 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1393 return(NULL);
1394 }
1395
1396 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1397 {
1398 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1399 goto err;
1400 }
1401 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1402 if (ret == NULL)
1403 goto err;
1404
1405 memset(ret,0,sizeof(SSL_CTX));
1406
1407 ret->method=meth;
1408
1409 ret->cert_store=NULL;
1410 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1411 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1412 ret->session_cache_head=NULL;
1413 ret->session_cache_tail=NULL;
1414
1415 /* We take the system default */
1416 ret->session_timeout=meth->get_timeout();
1417
1418 ret->new_session_cb=0;
1419 ret->remove_session_cb=0;
1420 ret->get_session_cb=0;
1421 ret->generate_session_id=0;
1422
1423 memset((char *)&ret->stats,0,sizeof(ret->stats));
1424
1425 ret->references=1;
1426 ret->quiet_shutdown=0;
1427
1428/* ret->cipher=NULL;*/
1429/* ret->s2->challenge=NULL;
1430 ret->master_key=NULL;
1431 ret->key_arg=NULL;
1432 ret->s2->conn_id=NULL; */
1433
1434 ret->info_callback=NULL;
1435
1436 ret->app_verify_callback=0;
1437 ret->app_verify_arg=NULL;
1438
1439 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1440 ret->read_ahead=0;
1441 ret->msg_callback=0;
1442 ret->msg_callback_arg=NULL;
1443 ret->verify_mode=SSL_VERIFY_NONE;
1444#if 0
1445 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1446#endif
1447 ret->sid_ctx_length=0;
1448 ret->default_verify_callback=NULL;
1449 if ((ret->cert=ssl_cert_new()) == NULL)
1450 goto err;
1451
1452 ret->default_passwd_callback=0;
1453 ret->default_passwd_callback_userdata=NULL;
1454 ret->client_cert_cb=0;
1455 ret->app_gen_cookie_cb=0;
1456 ret->app_verify_cookie_cb=0;
1457
1458 ret->sessions=lh_new(LHASH_HASH_FN(SSL_SESSION_hash),
1459 LHASH_COMP_FN(SSL_SESSION_cmp));
1460 if (ret->sessions == NULL) goto err;
1461 ret->cert_store=X509_STORE_new();
1462 if (ret->cert_store == NULL) goto err;
1463
1464 ssl_create_cipher_list(ret->method,
1465 &ret->cipher_list,&ret->cipher_list_by_id,
1466 SSL_DEFAULT_CIPHER_LIST);
1467 if (ret->cipher_list == NULL
1468 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1469 {
1470 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1471 goto err2;
1472 }
1473
1474 ret->param = X509_VERIFY_PARAM_new();
1475 if (!ret->param)
1476 goto err;
1477
1478 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1479 {
1480 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1481 goto err2;
1482 }
1483 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1484 {
1485 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1486 goto err2;
1487 }
1488 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1489 {
1490 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1491 goto err2;
1492 }
1493
1494 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1495 goto err;
1496
1497 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1498
1499 ret->extra_certs=NULL;
1500 ret->comp_methods=SSL_COMP_get_compression_methods();
1501
e6bc27f5
PA
1502#ifndef OPENSSL_NO_TLSEXT
1503 ret->tlsext_servername_callback = 0;
1504 ret->tlsext_servername_arg = NULL;
1505 /* Setup RFC4507 ticket keys */
1506 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1507 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1508 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1509 ret->options |= SSL_OP_NO_TICKET;
1510
2e6ca3d0
PA
1511 ret->tlsext_status_cb = 0;
1512 ret->tlsext_status_arg = NULL;
1513
e6bc27f5
PA
1514#endif
1515
56276539
SS
1516 return(ret);
1517err:
1518 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1519err2:
1520 if (ret != NULL) SSL_CTX_free(ret);
1521 return(NULL);
1522 }
1523
1524#if 0
1525static void SSL_COMP_free(SSL_COMP *comp)
1526 { OPENSSL_free(comp); }
1527#endif
1528
1529void SSL_CTX_free(SSL_CTX *a)
1530 {
1531 int i;
1532
1533 if (a == NULL) return;
1534
1535 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1536#ifdef REF_PRINT
1537 REF_PRINT("SSL_CTX",a);
1538#endif
1539 if (i > 0) return;
1540#ifdef REF_CHECK
1541 if (i < 0)
1542 {
1543 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1544 abort(); /* ok */
1545 }
1546#endif
1547
1548 if (a->param)
1549 X509_VERIFY_PARAM_free(a->param);
1550
1551 /*
1552 * Free internal session cache. However: the remove_cb() may reference
1553 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1554 * after the sessions were flushed.
1555 * As the ex_data handling routines might also touch the session cache,
1556 * the most secure solution seems to be: empty (flush) the cache, then
1557 * free ex_data, then finally free the cache.
1558 * (See ticket [openssl.org #212].)
1559 */
1560 if (a->sessions != NULL)
1561 SSL_CTX_flush_sessions(a,0);
1562
1563 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1564
1565 if (a->sessions != NULL)
1566 lh_free(a->sessions);
1567
1568 if (a->cert_store != NULL)
1569 X509_STORE_free(a->cert_store);
1570 if (a->cipher_list != NULL)
1571 sk_SSL_CIPHER_free(a->cipher_list);
1572 if (a->cipher_list_by_id != NULL)
1573 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1574 if (a->cert != NULL)
1575 ssl_cert_free(a->cert);
1576 if (a->client_CA != NULL)
1577 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1578 if (a->extra_certs != NULL)
1579 sk_X509_pop_free(a->extra_certs,X509_free);
1580#if 0 /* This should never be done, since it removes a global database */
1581 if (a->comp_methods != NULL)
1582 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1583#else
1584 a->comp_methods = NULL;
1585#endif
1586 OPENSSL_free(a);
1587 }
1588
1589void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1590 {
1591 ctx->default_passwd_callback=cb;
1592 }
1593
1594void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1595 {
1596 ctx->default_passwd_callback_userdata=u;
1597 }
1598
1599void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
1600 {
1601 ctx->app_verify_callback=cb;
1602 ctx->app_verify_arg=arg;
1603 }
1604
1605void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1606 {
1607 ctx->verify_mode=mode;
1608 ctx->default_verify_callback=cb;
1609 }
1610
1611void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1612 {
1613 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
1614 }
1615
1616void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher)
1617 {
1618 CERT_PKEY *cpk;
1619 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1620 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1621 int rsa_tmp_export,dh_tmp_export,kl;
1622 unsigned long mask,emask;
5bd86ce5
SS
1623 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size;
1624#ifndef OPENSSL_NO_ECDH
1625 int have_ecdh_tmp;
1626#endif
56276539
SS
1627 X509 *x = NULL;
1628 EVP_PKEY *ecc_pkey = NULL;
1629 int signature_nid = 0;
1630
1631 if (c == NULL) return;
1632
1633 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1634
1635#ifndef OPENSSL_NO_RSA
1636 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1637 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1638 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1639#else
1640 rsa_tmp=rsa_tmp_export=0;
1641#endif
1642#ifndef OPENSSL_NO_DH
1643 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1644 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1645 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1646#else
1647 dh_tmp=dh_tmp_export=0;
1648#endif
1649
1650#ifndef OPENSSL_NO_ECDH
1651 have_ecdh_tmp=(c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL);
1652#endif
1653 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1654 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1655 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1656 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1657 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1658 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1659 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1660 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1661 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1662 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1663 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1664/* FIX THIS EAY EAY EAY */
1665 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1666 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1667 cpk= &(c->pkeys[SSL_PKEY_ECC]);
1668 have_ecc_cert= (cpk->x509 != NULL && cpk->privatekey != NULL);
1669 mask=0;
1670 emask=0;
1671
1672#ifdef CIPHER_DEBUG
1673 printf("rt=%d rte=%d dht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1674 rsa_tmp,rsa_tmp_export,dh_tmp,
1675 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1676#endif
1677
1678 if (rsa_enc || (rsa_tmp && rsa_sign))
1679 mask|=SSL_kRSA;
1680 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1681 emask|=SSL_kRSA;
1682
1683#if 0
1684 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
1685 if ( (dh_tmp || dh_rsa || dh_dsa) &&
1686 (rsa_enc || rsa_sign || dsa_sign))
1687 mask|=SSL_kEDH;
1688 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1689 (rsa_enc || rsa_sign || dsa_sign))
1690 emask|=SSL_kEDH;
1691#endif
1692
1693 if (dh_tmp_export)
1694 emask|=SSL_kEDH;
1695
1696 if (dh_tmp)
1697 mask|=SSL_kEDH;
1698
1699 if (dh_rsa) mask|=SSL_kDHr;
1700 if (dh_rsa_export) emask|=SSL_kDHr;
1701
1702 if (dh_dsa) mask|=SSL_kDHd;
1703 if (dh_dsa_export) emask|=SSL_kDHd;
1704
1705 if (rsa_enc || rsa_sign)
1706 {
1707 mask|=SSL_aRSA;
1708 emask|=SSL_aRSA;
1709 }
1710
1711 if (dsa_sign)
1712 {
1713 mask|=SSL_aDSS;
1714 emask|=SSL_aDSS;
1715 }
1716
1717 mask|=SSL_aNULL;
1718 emask|=SSL_aNULL;
1719
1720#ifndef OPENSSL_NO_KRB5
1721 mask|=SSL_kKRB5|SSL_aKRB5;
1722 emask|=SSL_kKRB5|SSL_aKRB5;
1723#endif
1724
1725 /* An ECC certificate may be usable for ECDH and/or
1726 * ECDSA cipher suites depending on the key usage extension.
1727 */
1728 if (have_ecc_cert)
1729 {
1730 /* This call populates extension flags (ex_flags) */
1731 x = (c->pkeys[SSL_PKEY_ECC]).x509;
1732 X509_check_purpose(x, -1, 0);
1733 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1734 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
1735 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1736 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
1737 ecc_pkey = X509_get_pubkey(x);
1738 ecc_pkey_size = (ecc_pkey != NULL) ?
1739 EVP_PKEY_bits(ecc_pkey) : 0;
1740 EVP_PKEY_free(ecc_pkey);
1741 if ((x->sig_alg) && (x->sig_alg->algorithm))
1742 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
1743#ifndef OPENSSL_NO_ECDH
1744 if (ecdh_ok)
1745 {
1746 if ((signature_nid == NID_md5WithRSAEncryption) ||
1747 (signature_nid == NID_md4WithRSAEncryption) ||
1748 (signature_nid == NID_md2WithRSAEncryption))
1749 {
1750 mask|=SSL_kECDH|SSL_aRSA;
1751 if (ecc_pkey_size <= 163)
1752 emask|=SSL_kECDH|SSL_aRSA;
1753 }
1754 if (signature_nid == NID_ecdsa_with_SHA1)
1755 {
1756 mask|=SSL_kECDH|SSL_aECDSA;
1757 if (ecc_pkey_size <= 163)
1758 emask|=SSL_kECDH|SSL_aECDSA;
1759 }
1760 }
1761#endif
1762#ifndef OPENSSL_NO_ECDSA
1763 if (ecdsa_ok)
1764 {
1765 mask|=SSL_aECDSA;
1766 emask|=SSL_aECDSA;
1767 }
1768#endif
1769 }
1770
1771#ifndef OPENSSL_NO_ECDH
1772 if (have_ecdh_tmp)
1773 {
1774 mask|=SSL_kECDHE;
1775 emask|=SSL_kECDHE;
1776 }
1777#endif
1778 c->mask=mask;
1779 c->export_mask=emask;
1780 c->valid=1;
1781 }
1782
1783/* This handy macro borrowed from crypto/x509v3/v3_purp.c */
1784#define ku_reject(x, usage) \
1785 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
1786
1787int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs)
1788 {
1789 unsigned long alg = cs->algorithms;
1790 EVP_PKEY *pkey = NULL;
1791 int keysize = 0;
1792 int signature_nid = 0;
1793
1794 if (SSL_C_IS_EXPORT(cs))
1795 {
1796 /* ECDH key length in export ciphers must be <= 163 bits */
1797 pkey = X509_get_pubkey(x);
1798 if (pkey == NULL) return 0;
1799 keysize = EVP_PKEY_bits(pkey);
1800 EVP_PKEY_free(pkey);
1801 if (keysize > 163) return 0;
1802 }
1803
1804 /* This call populates the ex_flags field correctly */
1805 X509_check_purpose(x, -1, 0);
1806 if ((x->sig_alg) && (x->sig_alg->algorithm))
1807 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
1808 if (alg & SSL_kECDH)
1809 {
1810 /* key usage, if present, must allow key agreement */
1811 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
1812 {
1813 return 0;
1814 }
1815 if (alg & SSL_aECDSA)
1816 {
1817 /* signature alg must be ECDSA */
1818 if (signature_nid != NID_ecdsa_with_SHA1)
1819 {
1820 return 0;
1821 }
1822 }
1823 if (alg & SSL_aRSA)
1824 {
1825 /* signature alg must be RSA */
1826 if ((signature_nid != NID_md5WithRSAEncryption) &&
1827 (signature_nid != NID_md4WithRSAEncryption) &&
1828 (signature_nid != NID_md2WithRSAEncryption))
1829 {
1830 return 0;
1831 }
1832 }
1833 }
1834 else if (alg & SSL_aECDSA)
1835 {
1836 /* key usage, if present, must allow signing */
1837 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
1838 {
1839 return 0;
1840 }
1841 }
1842
1843 return 1; /* all checks are ok */
1844 }
1845
1846/* THIS NEEDS CLEANING UP */
1847X509 *ssl_get_server_send_cert(SSL *s)
1848 {
1849 unsigned long alg,mask,kalg;
1850 CERT *c;
1851 int i,is_export;
1852
1853 c=s->cert;
1854 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
1855 alg=s->s3->tmp.new_cipher->algorithms;
1856 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
1857 mask=is_export?c->export_mask:c->mask;
1858 kalg=alg&(SSL_MKEY_MASK|SSL_AUTH_MASK);
1859
1860 if (kalg & SSL_kECDH)
1861 {
1862 /* we don't need to look at SSL_kECDHE
1863 * since no certificate is needed for
1864 * anon ECDH and for authenticated
1865 * ECDHE, the check for the auth
1866 * algorithm will set i correctly
1867 * NOTE: For ECDH-RSA, we need an ECC
1868 * not an RSA cert but for ECDHE-RSA
1869 * we need an RSA cert. Placing the
1870 * checks for SSL_kECDH before RSA
1871 * checks ensures the correct cert is chosen.
1872 */
1873 i=SSL_PKEY_ECC;
1874 }
1875 else if (kalg & SSL_aECDSA)
1876 {
1877 i=SSL_PKEY_ECC;
1878 }
1879 else if (kalg & SSL_kDHr)
1880 i=SSL_PKEY_DH_RSA;
1881 else if (kalg & SSL_kDHd)
1882 i=SSL_PKEY_DH_DSA;
1883 else if (kalg & SSL_aDSS)
1884 i=SSL_PKEY_DSA_SIGN;
1885 else if (kalg & SSL_aRSA)
1886 {
1887 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
1888 i=SSL_PKEY_RSA_SIGN;
1889 else
1890 i=SSL_PKEY_RSA_ENC;
1891 }
1892 else if (kalg & SSL_aKRB5)
1893 {
1894 /* VRS something else here? */
1895 return(NULL);
1896 }
1897 else /* if (kalg & SSL_aNULL) */
1898 {
1899 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR);
1900 return(NULL);
1901 }
1902 if (c->pkeys[i].x509 == NULL) return(NULL);
1903
1904 return(c->pkeys[i].x509);
1905 }
1906
1907EVP_PKEY *ssl_get_sign_pkey(SSL *s,SSL_CIPHER *cipher)
1908 {
1909 unsigned long alg;
1910 CERT *c;
1911
1912 alg=cipher->algorithms;
1913 c=s->cert;
1914
1915 if ((alg & SSL_aDSS) &&
1916 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
1917 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
1918 else if (alg & SSL_aRSA)
1919 {
1920 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
1921 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
1922 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
1923 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
1924 else
1925 return(NULL);
1926 }
1927 else if ((alg & SSL_aECDSA) &&
1928 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
1929 return(c->pkeys[SSL_PKEY_ECC].privatekey);
1930 else /* if (alg & SSL_aNULL) */
1931 {
1932 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
1933 return(NULL);
1934 }
1935 }
1936
1937void ssl_update_cache(SSL *s,int mode)
1938 {
1939 int i;
1940
1941 /* If the session_id_length is 0, we are not supposed to cache it,
1942 * and it would be rather hard to do anyway :-) */
1943 if (s->session->session_id_length == 0) return;
1944
1945 i=s->ctx->session_cache_mode;
1946 if ((i & mode) && (!s->hit)
1947 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
1948 || SSL_CTX_add_session(s->ctx,s->session))
1949 && (s->ctx->new_session_cb != NULL))
1950 {
1951 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
1952 if (!s->ctx->new_session_cb(s,s->session))
1953 SSL_SESSION_free(s->session);
1954 }
1955
1956 /* auto flush every 255 connections */
1957 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
1958 ((i & mode) == mode))
1959 {
1960 if ( (((mode & SSL_SESS_CACHE_CLIENT)
1961 ?s->ctx->stats.sess_connect_good
1962 :s->ctx->stats.sess_accept_good) & 0xff) == 0xff)
1963 {
74093195 1964 SSL_CTX_flush_sessions(s->ctx,(unsigned long)time(NULL));
56276539
SS
1965 }
1966 }
1967 }
1968
1969SSL_METHOD *SSL_get_ssl_method(SSL *s)
1970 {
1971 return(s->method);
1972 }
1973
1974int SSL_set_ssl_method(SSL *s,SSL_METHOD *meth)
1975 {
1976 int conn= -1;
1977 int ret=1;
1978
1979 if (s->method != meth)
1980 {
1981 if (s->handshake_func != NULL)
1982 conn=(s->handshake_func == s->method->ssl_connect);
1983
1984 if (s->method->version == meth->version)
1985 s->method=meth;
1986 else
1987 {
1988 s->method->ssl_free(s);
1989 s->method=meth;
1990 ret=s->method->ssl_new(s);
1991 }
1992
1993 if (conn == 1)
1994 s->handshake_func=meth->ssl_connect;
1995 else if (conn == 0)
1996 s->handshake_func=meth->ssl_accept;
1997 }
1998 return(ret);
1999 }
2000
2001int SSL_get_error(const SSL *s,int i)
2002 {
2003 int reason;
2004 unsigned long l;
2005 BIO *bio;
2006
2007 if (i > 0) return(SSL_ERROR_NONE);
2008
2009 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2010 * etc, where we do encode the error */
2011 if ((l=ERR_peek_error()) != 0)
2012 {
2013 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2014 return(SSL_ERROR_SYSCALL);
2015 else
2016 return(SSL_ERROR_SSL);
2017 }
2018
2019 if ((i < 0) && SSL_want_read(s))
2020 {
2021 bio=SSL_get_rbio(s);
2022 if (BIO_should_read(bio))
2023 return(SSL_ERROR_WANT_READ);
2024 else if (BIO_should_write(bio))
2025 /* This one doesn't make too much sense ... We never try
2026 * to write to the rbio, and an application program where
2027 * rbio and wbio are separate couldn't even know what it
2028 * should wait for.
2029 * However if we ever set s->rwstate incorrectly
2030 * (so that we have SSL_want_read(s) instead of
2031 * SSL_want_write(s)) and rbio and wbio *are* the same,
2032 * this test works around that bug; so it might be safer
2033 * to keep it. */
2034 return(SSL_ERROR_WANT_WRITE);
2035 else if (BIO_should_io_special(bio))
2036 {
2037 reason=BIO_get_retry_reason(bio);
2038 if (reason == BIO_RR_CONNECT)
2039 return(SSL_ERROR_WANT_CONNECT);
2040 else if (reason == BIO_RR_ACCEPT)
2041 return(SSL_ERROR_WANT_ACCEPT);
2042 else
2043 return(SSL_ERROR_SYSCALL); /* unknown */
2044 }
2045 }
2046
2047 if ((i < 0) && SSL_want_write(s))
2048 {
2049 bio=SSL_get_wbio(s);
2050 if (BIO_should_write(bio))
2051 return(SSL_ERROR_WANT_WRITE);
2052 else if (BIO_should_read(bio))
2053 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2054 return(SSL_ERROR_WANT_READ);
2055 else if (BIO_should_io_special(bio))
2056 {
2057 reason=BIO_get_retry_reason(bio);
2058 if (reason == BIO_RR_CONNECT)
2059 return(SSL_ERROR_WANT_CONNECT);
2060 else if (reason == BIO_RR_ACCEPT)
2061 return(SSL_ERROR_WANT_ACCEPT);
2062 else
2063 return(SSL_ERROR_SYSCALL);
2064 }
2065 }
2066 if ((i < 0) && SSL_want_x509_lookup(s))
2067 {
2068 return(SSL_ERROR_WANT_X509_LOOKUP);
2069 }
2070
2071 if (i == 0)
2072 {
2073 if (s->version == SSL2_VERSION)
2074 {
2075 /* assume it is the socket being closed */
2076 return(SSL_ERROR_ZERO_RETURN);
2077 }
2078 else
2079 {
2080 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2081 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2082 return(SSL_ERROR_ZERO_RETURN);
2083 }
2084 }
2085 return(SSL_ERROR_SYSCALL);
2086 }
2087
2088int SSL_do_handshake(SSL *s)
2089 {
2090 int ret=1;
2091
2092 if (s->handshake_func == NULL)
2093 {
2094 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2095 return(-1);
2096 }
2097
2098 s->method->ssl_renegotiate_check(s);
2099
2100 if (SSL_in_init(s) || SSL_in_before(s))
2101 {
2102 ret=s->handshake_func(s);
2103 }
2104 return(ret);
2105 }
2106
2107/* For the next 2 functions, SSL_clear() sets shutdown and so
2108 * one of these calls will reset it */
2109void SSL_set_accept_state(SSL *s)
2110 {
2111 s->server=1;
2112 s->shutdown=0;
2113 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2114 s->handshake_func=s->method->ssl_accept;
2115 /* clear the current cipher */
2116 ssl_clear_cipher_ctx(s);
2117 }
2118
2119void SSL_set_connect_state(SSL *s)
2120 {
2121 s->server=0;
2122 s->shutdown=0;
2123 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2124 s->handshake_func=s->method->ssl_connect;
2125 /* clear the current cipher */
2126 ssl_clear_cipher_ctx(s);
2127 }
2128
2129int ssl_undefined_function(SSL *s)
2130 {
2131 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2132 return(0);
2133 }
2134
2135int ssl_undefined_void_function(void)
2136 {
2137 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2138 return(0);
2139 }
2140
2141int ssl_undefined_const_function(const SSL *s)
2142 {
2143 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2144 return(0);
2145 }
2146
2147SSL_METHOD *ssl_bad_method(int ver)
2148 {
2149 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2150 return(NULL);
2151 }
2152
2153const char *SSL_get_version(const SSL *s)
2154 {
2155 if (s->version == TLS1_VERSION)
2156 return("TLSv1");
2157 else if (s->version == SSL3_VERSION)
2158 return("SSLv3");
2159 else if (s->version == SSL2_VERSION)
2160 return("SSLv2");
2161 else
2162 return("unknown");
2163 }
2164
2165SSL *SSL_dup(SSL *s)
2166 {
2167 STACK_OF(X509_NAME) *sk;
2168 X509_NAME *xn;
2169 SSL *ret;
2170 int i;
2171
2172 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2173 return(NULL);
2174
2175 ret->version = s->version;
2176 ret->type = s->type;
2177 ret->method = s->method;
2178
2179 if (s->session != NULL)
2180 {
2181 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2182 SSL_copy_session_id(ret,s);
2183 }
2184 else
2185 {
2186 /* No session has been established yet, so we have to expect
2187 * that s->cert or ret->cert will be changed later --
2188 * they should not both point to the same object,
2189 * and thus we can't use SSL_copy_session_id. */
2190
2191 ret->method->ssl_free(ret);
2192 ret->method = s->method;
2193 ret->method->ssl_new(ret);
2194
2195 if (s->cert != NULL)
2196 {
2197 if (ret->cert != NULL)
2198 {
2199 ssl_cert_free(ret->cert);
2200 }
2201 ret->cert = ssl_cert_dup(s->cert);
2202 if (ret->cert == NULL)
2203 goto err;
2204 }
2205
2206 SSL_set_session_id_context(ret,
2207 s->sid_ctx, s->sid_ctx_length);
2208 }
2209
2210 ret->options=s->options;
2211 ret->mode=s->mode;
2212 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
2213 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
2214 ret->msg_callback = s->msg_callback;
2215 ret->msg_callback_arg = s->msg_callback_arg;
2216 SSL_set_verify(ret,SSL_get_verify_mode(s),
2217 SSL_get_verify_callback(s));
2218 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
2219 ret->generate_session_id = s->generate_session_id;
2220
2221 SSL_set_info_callback(ret,SSL_get_info_callback(s));
2222
2223 ret->debug=s->debug;
2224
2225 /* copy app data, a little dangerous perhaps */
2226 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2227 goto err;
2228
2229 /* setup rbio, and wbio */
2230 if (s->rbio != NULL)
2231 {
2232 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
2233 goto err;
2234 }
2235 if (s->wbio != NULL)
2236 {
2237 if (s->wbio != s->rbio)
2238 {
2239 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
2240 goto err;
2241 }
2242 else
2243 ret->wbio=ret->rbio;
2244 }
2245 ret->rwstate = s->rwstate;
2246 ret->in_handshake = s->in_handshake;
2247 ret->handshake_func = s->handshake_func;
2248 ret->server = s->server;
2249 ret->new_session = s->new_session;
2250 ret->quiet_shutdown = s->quiet_shutdown;
2251 ret->shutdown=s->shutdown;
2252 ret->state=s->state; /* SSL_dup does not really work at any state, though */
2253 ret->rstate=s->rstate;
2254 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2255 ret->hit=s->hit;
2256
2257 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2258
2259 /* dup the cipher_list and cipher_list_by_id stacks */
2260 if (s->cipher_list != NULL)
2261 {
2262 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2263 goto err;
2264 }
2265 if (s->cipher_list_by_id != NULL)
2266 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2267 == NULL)
2268 goto err;
2269
2270 /* Dup the client_CA list */
2271 if (s->client_CA != NULL)
2272 {
2273 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2274 ret->client_CA=sk;
2275 for (i=0; i<sk_X509_NAME_num(sk); i++)
2276 {
2277 xn=sk_X509_NAME_value(sk,i);
2278 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
2279 {
2280 X509_NAME_free(xn);
2281 goto err;
2282 }
2283 }
2284 }
2285
2286 if (0)
2287 {
2288err:
2289 if (ret != NULL) SSL_free(ret);
2290 ret=NULL;
2291 }
2292 return(ret);
2293 }
2294
2295void ssl_clear_cipher_ctx(SSL *s)
2296 {
2297 if (s->enc_read_ctx != NULL)
2298 {
2299 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2300 OPENSSL_free(s->enc_read_ctx);
2301 s->enc_read_ctx=NULL;
2302 }
2303 if (s->enc_write_ctx != NULL)
2304 {
2305 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2306 OPENSSL_free(s->enc_write_ctx);
2307 s->enc_write_ctx=NULL;
2308 }
5bd86ce5 2309#ifndef OPENSSL_NO_COMP
56276539
SS
2310 if (s->expand != NULL)
2311 {
2312 COMP_CTX_free(s->expand);
2313 s->expand=NULL;
2314 }
2315 if (s->compress != NULL)
2316 {
2317 COMP_CTX_free(s->compress);
2318 s->compress=NULL;
2319 }
5bd86ce5 2320#endif
56276539
SS
2321 }
2322
2323/* Fix this function so that it takes an optional type parameter */
2324X509 *SSL_get_certificate(const SSL *s)
2325 {
2326 if (s->cert != NULL)
2327 return(s->cert->key->x509);
2328 else
2329 return(NULL);
2330 }
2331
2332/* Fix this function so that it takes an optional type parameter */
2333EVP_PKEY *SSL_get_privatekey(SSL *s)
2334 {
2335 if (s->cert != NULL)
2336 return(s->cert->key->privatekey);
2337 else
2338 return(NULL);
2339 }
2340
2341SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2342 {
2343 if ((s->session != NULL) && (s->session->cipher != NULL))
2344 return(s->session->cipher);
2345 return(NULL);
2346 }
5bd86ce5
SS
2347#ifdef OPENSSL_NO_COMP
2348const void *SSL_get_current_compression(SSL *s)
2349 {
2350 return NULL;
2351 }
2352const void *SSL_get_current_expansion(SSL *s)
2353 {
2354 return NULL;
2355 }
2356#else
56276539
SS
2357
2358const COMP_METHOD *SSL_get_current_compression(SSL *s)
2359 {
2360 if (s->compress != NULL)
2361 return(s->compress->meth);
2362 return(NULL);
2363 }
2364
2365const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2366 {
2367 if (s->expand != NULL)
2368 return(s->expand->meth);
2369 return(NULL);
2370 }
5bd86ce5 2371#endif
56276539
SS
2372
2373int ssl_init_wbio_buffer(SSL *s,int push)
2374 {
2375 BIO *bbio;
2376
2377 if (s->bbio == NULL)
2378 {
2379 bbio=BIO_new(BIO_f_buffer());
2380 if (bbio == NULL) return(0);
2381 s->bbio=bbio;
2382 }
2383 else
2384 {
2385 bbio=s->bbio;
2386 if (s->bbio == s->wbio)
2387 s->wbio=BIO_pop(s->wbio);
2388 }
2389 (void)BIO_reset(bbio);
2390/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2391 if (!BIO_set_read_buffer_size(bbio,1))
2392 {
2393 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
2394 return(0);
2395 }
2396 if (push)
2397 {
2398 if (s->wbio != bbio)
2399 s->wbio=BIO_push(bbio,s->wbio);
2400 }
2401 else
2402 {
2403 if (s->wbio == bbio)
2404 s->wbio=BIO_pop(bbio);
2405 }
2406 return(1);
2407 }
2408
2409void ssl_free_wbio_buffer(SSL *s)
2410 {
2411 if (s->bbio == NULL) return;
2412
2413 if (s->bbio == s->wbio)
2414 {
2415 /* remove buffering */
2416 s->wbio=BIO_pop(s->wbio);
2417#ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2418 assert(s->wbio != NULL);
2419#endif
2420 }
2421 BIO_free(s->bbio);
2422 s->bbio=NULL;
2423 }
2424
2425void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
2426 {
2427 ctx->quiet_shutdown=mode;
2428 }
2429
2430int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2431 {
2432 return(ctx->quiet_shutdown);
2433 }
2434
2435void SSL_set_quiet_shutdown(SSL *s,int mode)
2436 {
2437 s->quiet_shutdown=mode;
2438 }
2439
2440int SSL_get_quiet_shutdown(const SSL *s)
2441 {
2442 return(s->quiet_shutdown);
2443 }
2444
2445void SSL_set_shutdown(SSL *s,int mode)
2446 {
2447 s->shutdown=mode;
2448 }
2449
2450int SSL_get_shutdown(const SSL *s)
2451 {
2452 return(s->shutdown);
2453 }
2454
2455int SSL_version(const SSL *s)
2456 {
2457 return(s->version);
2458 }
2459
2460SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2461 {
2462 return(ssl->ctx);
2463 }
2464
e6bc27f5
PA
2465SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
2466 {
2467 if (ssl->ctx == ctx)
2468 return ssl->ctx;
2469#ifndef OPENSSL_NO_TLSEXT
2470 if (ctx == NULL)
2471 ctx = ssl->initial_ctx;
2472#endif
2473 if (ssl->cert != NULL)
2474 ssl_cert_free(ssl->cert);
2475 ssl->cert = ssl_cert_dup(ctx->cert);
2476 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
2477 if (ssl->ctx != NULL)
2478 SSL_CTX_free(ssl->ctx); /* decrement reference count */
2479 ssl->ctx = ctx;
2480 return(ssl->ctx);
2481 }
2482
56276539
SS
2483#ifndef OPENSSL_NO_STDIO
2484int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2485 {
2486 return(X509_STORE_set_default_paths(ctx->cert_store));
2487 }
2488
2489int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2490 const char *CApath)
2491 {
2492 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
2493 }
2494#endif
2495
2496void SSL_set_info_callback(SSL *ssl,
e40c9513 2497 void (*cb)(const SSL *ssl,int type,int val))
56276539
SS
2498 {
2499 ssl->info_callback=cb;
2500 }
2501
2502/* One compiler (Diab DCC) doesn't like argument names in returned
2503 function pointer. */
e40c9513 2504void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
56276539
SS
2505 {
2506 return ssl->info_callback;
2507 }
2508
2509int SSL_state(const SSL *ssl)
2510 {
2511 return(ssl->state);
2512 }
2513
2514void SSL_set_verify_result(SSL *ssl,long arg)
2515 {
2516 ssl->verify_result=arg;
2517 }
2518
2519long SSL_get_verify_result(const SSL *ssl)
2520 {
2521 return(ssl->verify_result);
2522 }
2523
2524int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2525 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2526 {
2527 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2528 new_func, dup_func, free_func);
2529 }
2530
2531int SSL_set_ex_data(SSL *s,int idx,void *arg)
2532 {
2533 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2534 }
2535
2536void *SSL_get_ex_data(const SSL *s,int idx)
2537 {
2538 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2539 }
2540
2541int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2542 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2543 {
2544 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2545 new_func, dup_func, free_func);
2546 }
2547
2548int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
2549 {
2550 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2551 }
2552
2553void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
2554 {
2555 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2556 }
2557
2558int ssl_ok(SSL *s)
2559 {
2560 return(1);
2561 }
2562
2563X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
2564 {
2565 return(ctx->cert_store);
2566 }
2567
2568void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
2569 {
2570 if (ctx->cert_store != NULL)
2571 X509_STORE_free(ctx->cert_store);
2572 ctx->cert_store=store;
2573 }
2574
2575int SSL_want(const SSL *s)
2576 {
2577 return(s->rwstate);
2578 }
2579
2580/*!
2581 * \brief Set the callback for generating temporary RSA keys.
2582 * \param ctx the SSL context.
2583 * \param cb the callback
2584 */
2585
2586#ifndef OPENSSL_NO_RSA
2587void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2588 int is_export,
2589 int keylength))
2590 {
2591 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
2592 }
2593
2594void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2595 int is_export,
2596 int keylength))
2597 {
2598 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
2599 }
2600#endif
2601
2602#ifdef DOXYGEN
2603/*!
2604 * \brief The RSA temporary key callback function.
2605 * \param ssl the SSL session.
2606 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2607 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2608 * of the required key in bits.
2609 * \return the temporary RSA key.
2610 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2611 */
2612
2613RSA *cb(SSL *ssl,int is_export,int keylength)
2614 {}
2615#endif
2616
2617/*!
2618 * \brief Set the callback for generating temporary DH keys.
2619 * \param ctx the SSL context.
2620 * \param dh the callback
2621 */
2622
2623#ifndef OPENSSL_NO_DH
2624void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
2625 int keylength))
2626 {
2627 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
2628 }
2629
2630void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
2631 int keylength))
2632 {
2633 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
2634 }
2635#endif
2636
2637#ifndef OPENSSL_NO_ECDH
2638void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
2639 int keylength))
2640 {
2641 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
2642 }
2643
2644void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
2645 int keylength))
2646 {
2647 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
2648 }
2649#endif
2650
2651
2652void 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))
2653 {
2654 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
2655 }
2656void 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))
2657 {
2658 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
2659 }
2660
2661
2662
2663#if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
2664#include "../crypto/bio/bss_file.c"
2665#endif
2666
2667IMPLEMENT_STACK_OF(SSL_CIPHER)
2668IMPLEMENT_STACK_OF(SSL_COMP)