Import OpenSSL-1.0.0g.
[dragonfly.git] / crypto / openssl / ssl / ssl_lib.c
CommitLineData
56276539
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1/*! \file ssl/ssl_lib.c
2 * \brief Version independent SSL functions.
3 */
4/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * All rights reserved.
6 *
7 * This package is an SSL implementation written
8 * by Eric Young (eay@cryptsoft.com).
9 * The implementation was written so as to conform with Netscapes SSL.
10 *
11 * This library is free for commercial and non-commercial use as long as
12 * the following conditions are aheared to. The following conditions
13 * apply to all code found in this distribution, be it the RC4, RSA,
14 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
15 * included with this distribution is covered by the same copyright terms
16 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
17 *
18 * Copyright remains Eric Young's, and as such any Copyright notices in
19 * the code are not to be removed.
20 * If this package is used in a product, Eric Young should be given attribution
21 * as the author of the parts of the library used.
22 * This can be in the form of a textual message at program startup or
23 * in documentation (online or textual) provided with the package.
24 *
25 * Redistribution and use in source and binary forms, with or without
26 * modification, are permitted provided that the following conditions
27 * are met:
28 * 1. Redistributions of source code must retain the copyright
29 * notice, this list of conditions and the following disclaimer.
30 * 2. Redistributions in binary form must reproduce the above copyright
31 * notice, this list of conditions and the following disclaimer in the
32 * documentation and/or other materials provided with the distribution.
33 * 3. All advertising materials mentioning features or use of this software
34 * must display the following acknowledgement:
35 * "This product includes cryptographic software written by
36 * Eric Young (eay@cryptsoft.com)"
37 * The word 'cryptographic' can be left out if the rouines from the library
38 * being used are not cryptographic related :-).
39 * 4. If you include any Windows specific code (or a derivative thereof) from
40 * the apps directory (application code) you must include an acknowledgement:
41 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
42 *
43 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * SUCH DAMAGE.
54 *
55 * The licence and distribution terms for any publically available version or
56 * derivative of this code cannot be changed. i.e. this code cannot simply be
57 * copied and put under another distribution licence
58 * [including the GNU Public Licence.]
59 */
60/* ====================================================================
919b01cc 61 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
56276539
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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 */
919b01cc
PA
118/* ====================================================================
119 * Copyright 2005 Nokia. All rights reserved.
120 *
121 * The portions of the attached software ("Contribution") is developed by
122 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
123 * license.
124 *
125 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
126 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
127 * support (see RFC 4279) to OpenSSL.
128 *
129 * No patent licenses or other rights except those expressly stated in
130 * the OpenSSL open source license shall be deemed granted or received
131 * expressly, by implication, estoppel, or otherwise.
132 *
133 * No assurances are provided by Nokia that the Contribution does not
134 * infringe the patent or other intellectual property rights of any third
135 * party or that the license provides you with all the necessary rights
136 * to make use of the Contribution.
137 *
138 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
139 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
140 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
141 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
142 * OTHERWISE.
143 */
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144
145#ifdef REF_CHECK
146# include <assert.h>
147#endif
148#include <stdio.h>
149#include "ssl_locl.h"
150#include "kssl_lcl.h"
151#include <openssl/objects.h>
152#include <openssl/lhash.h>
153#include <openssl/x509v3.h>
e6bc27f5 154#include <openssl/rand.h>
2e6ca3d0 155#include <openssl/ocsp.h>
5bd86ce5 156#ifndef OPENSSL_NO_DH
56276539 157#include <openssl/dh.h>
5bd86ce5 158#endif
683caddb
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159#ifndef OPENSSL_NO_ENGINE
160#include <openssl/engine.h>
161#endif
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162
163const char *SSL_version_str=OPENSSL_VERSION_TEXT;
164
165SSL3_ENC_METHOD ssl3_undef_enc_method={
166 /* evil casts, but these functions are only called if there's a library bug */
167 (int (*)(SSL *,int))ssl_undefined_function,
168 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
169 ssl_undefined_function,
170 (int (*)(SSL *, unsigned char *, unsigned char *, int))ssl_undefined_function,
171 (int (*)(SSL*, int))ssl_undefined_function,
919b01cc 172 (int (*)(SSL *, const char*, int, unsigned char *))ssl_undefined_function,
5bd86ce5 173 0, /* finish_mac_length */
919b01cc 174 (int (*)(SSL *, int, unsigned char *))ssl_undefined_function,
5bd86ce5
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175 NULL, /* client_finished_label */
176 0, /* client_finished_label_len */
177 NULL, /* server_finished_label */
178 0, /* server_finished_label_len */
179 (int (*)(int))ssl_undefined_function
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180 };
181
182int SSL_clear(SSL *s)
183 {
184
185 if (s->method == NULL)
186 {
187 SSLerr(SSL_F_SSL_CLEAR,SSL_R_NO_METHOD_SPECIFIED);
188 return(0);
189 }
190
191 if (ssl_clear_bad_session(s))
192 {
193 SSL_SESSION_free(s->session);
194 s->session=NULL;
195 }
196
197 s->error=0;
198 s->hit=0;
199 s->shutdown=0;
200
201#if 0 /* Disabled since version 1.10 of this file (early return not
202 * needed because SSL_clear is not called when doing renegotiation) */
203 /* This is set if we are doing dynamic renegotiation so keep
204 * the old cipher. It is sort of a SSL_clear_lite :-) */
205 if (s->new_session) return(1);
206#else
207 if (s->new_session)
208 {
209 SSLerr(SSL_F_SSL_CLEAR,ERR_R_INTERNAL_ERROR);
210 return 0;
211 }
212#endif
213
214 s->type=0;
215
216 s->state=SSL_ST_BEFORE|((s->server)?SSL_ST_ACCEPT:SSL_ST_CONNECT);
217
218 s->version=s->method->version;
219 s->client_version=s->version;
220 s->rwstate=SSL_NOTHING;
221 s->rstate=SSL_ST_READ_HEADER;
222#if 0
223 s->read_ahead=s->ctx->read_ahead;
224#endif
225
226 if (s->init_buf != NULL)
227 {
228 BUF_MEM_free(s->init_buf);
229 s->init_buf=NULL;
230 }
231
232 ssl_clear_cipher_ctx(s);
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233 ssl_clear_hash_ctx(&s->read_hash);
234 ssl_clear_hash_ctx(&s->write_hash);
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235
236 s->first_packet=0;
237
238#if 1
239 /* Check to see if we were changed into a different method, if
240 * so, revert back if we are not doing session-id reuse. */
241 if (!s->in_handshake && (s->session == NULL) && (s->method != s->ctx->method))
242 {
243 s->method->ssl_free(s);
244 s->method=s->ctx->method;
245 if (!s->method->ssl_new(s))
246 return(0);
247 }
248 else
249#endif
250 s->method->ssl_clear(s);
251 return(1);
252 }
253
254/** Used to change an SSL_CTXs default SSL method type */
919b01cc 255int SSL_CTX_set_ssl_version(SSL_CTX *ctx,const SSL_METHOD *meth)
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256 {
257 STACK_OF(SSL_CIPHER) *sk;
258
259 ctx->method=meth;
260
261 sk=ssl_create_cipher_list(ctx->method,&(ctx->cipher_list),
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262 &(ctx->cipher_list_by_id),
263 meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST);
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264 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0))
265 {
266 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
267 return(0);
268 }
269 return(1);
270 }
271
272SSL *SSL_new(SSL_CTX *ctx)
273 {
274 SSL *s;
275
276 if (ctx == NULL)
277 {
278 SSLerr(SSL_F_SSL_NEW,SSL_R_NULL_SSL_CTX);
279 return(NULL);
280 }
281 if (ctx->method == NULL)
282 {
283 SSLerr(SSL_F_SSL_NEW,SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
284 return(NULL);
285 }
286
287 s=(SSL *)OPENSSL_malloc(sizeof(SSL));
288 if (s == NULL) goto err;
289 memset(s,0,sizeof(SSL));
290
291#ifndef OPENSSL_NO_KRB5
292 s->kssl_ctx = kssl_ctx_new();
293#endif /* OPENSSL_NO_KRB5 */
294
295 s->options=ctx->options;
296 s->mode=ctx->mode;
297 s->max_cert_list=ctx->max_cert_list;
298
299 if (ctx->cert != NULL)
300 {
301 /* Earlier library versions used to copy the pointer to
302 * the CERT, not its contents; only when setting new
303 * parameters for the per-SSL copy, ssl_cert_new would be
304 * called (and the direct reference to the per-SSL_CTX
305 * settings would be lost, but those still were indirectly
306 * accessed for various purposes, and for that reason they
307 * used to be known as s->ctx->default_cert).
308 * Now we don't look at the SSL_CTX's CERT after having
309 * duplicated it once. */
310
311 s->cert = ssl_cert_dup(ctx->cert);
312 if (s->cert == NULL)
313 goto err;
314 }
315 else
316 s->cert=NULL; /* Cannot really happen (see SSL_CTX_new) */
317
318 s->read_ahead=ctx->read_ahead;
319 s->msg_callback=ctx->msg_callback;
320 s->msg_callback_arg=ctx->msg_callback_arg;
321 s->verify_mode=ctx->verify_mode;
322#if 0
323 s->verify_depth=ctx->verify_depth;
324#endif
325 s->sid_ctx_length=ctx->sid_ctx_length;
326 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
327 memcpy(&s->sid_ctx,&ctx->sid_ctx,sizeof(s->sid_ctx));
328 s->verify_callback=ctx->default_verify_callback;
329 s->generate_session_id=ctx->generate_session_id;
330
331 s->param = X509_VERIFY_PARAM_new();
332 if (!s->param)
333 goto err;
334 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
335#if 0
336 s->purpose = ctx->purpose;
337 s->trust = ctx->trust;
338#endif
339 s->quiet_shutdown=ctx->quiet_shutdown;
919b01cc 340 s->max_send_fragment = ctx->max_send_fragment;
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341
342 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
343 s->ctx=ctx;
e6bc27f5
PA
344#ifndef OPENSSL_NO_TLSEXT
345 s->tlsext_debug_cb = 0;
346 s->tlsext_debug_arg = NULL;
347 s->tlsext_ticket_expected = 0;
2e6ca3d0
PA
348 s->tlsext_status_type = -1;
349 s->tlsext_status_expected = 0;
350 s->tlsext_ocsp_ids = NULL;
351 s->tlsext_ocsp_exts = NULL;
352 s->tlsext_ocsp_resp = NULL;
353 s->tlsext_ocsp_resplen = -1;
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PA
354 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
355 s->initial_ctx=ctx;
356#endif
919b01cc 357
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358 s->verify_result=X509_V_OK;
359
360 s->method=ctx->method;
361
362 if (!s->method->ssl_new(s))
363 goto err;
364
365 s->references=1;
366 s->server=(ctx->method->ssl_accept == ssl_undefined_function)?0:1;
367
368 SSL_clear(s);
369
370 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
371
919b01cc
PA
372#ifndef OPENSSL_NO_PSK
373 s->psk_client_callback=ctx->psk_client_callback;
374 s->psk_server_callback=ctx->psk_server_callback;
375#endif
376
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377 return(s);
378err:
379 if (s != NULL)
380 {
381 if (s->cert != NULL)
382 ssl_cert_free(s->cert);
383 if (s->ctx != NULL)
384 SSL_CTX_free(s->ctx); /* decrement reference count */
385 OPENSSL_free(s);
386 }
387 SSLerr(SSL_F_SSL_NEW,ERR_R_MALLOC_FAILURE);
388 return(NULL);
389 }
390
391int SSL_CTX_set_session_id_context(SSL_CTX *ctx,const unsigned char *sid_ctx,
392 unsigned int sid_ctx_len)
393 {
394 if(sid_ctx_len > sizeof ctx->sid_ctx)
395 {
396 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
397 return 0;
398 }
399 ctx->sid_ctx_length=sid_ctx_len;
400 memcpy(ctx->sid_ctx,sid_ctx,sid_ctx_len);
401
402 return 1;
403 }
404
405int SSL_set_session_id_context(SSL *ssl,const unsigned char *sid_ctx,
406 unsigned int sid_ctx_len)
407 {
408 if(sid_ctx_len > SSL_MAX_SID_CTX_LENGTH)
409 {
410 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
411 return 0;
412 }
413 ssl->sid_ctx_length=sid_ctx_len;
414 memcpy(ssl->sid_ctx,sid_ctx,sid_ctx_len);
415
416 return 1;
417 }
418
419int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
420 {
421 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
422 ctx->generate_session_id = cb;
423 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
424 return 1;
425 }
426
427int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
428 {
429 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
430 ssl->generate_session_id = cb;
431 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
432 return 1;
433 }
434
435int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
436 unsigned int id_len)
437 {
438 /* A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
439 * we can "construct" a session to give us the desired check - ie. to
440 * find if there's a session in the hash table that would conflict with
441 * any new session built out of this id/id_len and the ssl_version in
442 * use by this SSL. */
443 SSL_SESSION r, *p;
444
445 if(id_len > sizeof r.session_id)
446 return 0;
447
448 r.ssl_version = ssl->version;
449 r.session_id_length = id_len;
450 memcpy(r.session_id, id, id_len);
451 /* NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
452 * callback is calling us to check the uniqueness of a shorter ID, it
453 * must be compared as a padded-out ID because that is what it will be
454 * converted to when the callback has finished choosing it. */
455 if((r.ssl_version == SSL2_VERSION) &&
456 (id_len < SSL2_SSL_SESSION_ID_LENGTH))
457 {
458 memset(r.session_id + id_len, 0,
459 SSL2_SSL_SESSION_ID_LENGTH - id_len);
460 r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
461 }
462
463 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
919b01cc 464 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
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465 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
466 return (p != NULL);
467 }
468
469int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
470 {
471 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
472 }
473
474int SSL_set_purpose(SSL *s, int purpose)
475 {
476 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
477 }
478
479int SSL_CTX_set_trust(SSL_CTX *s, int trust)
480 {
481 return X509_VERIFY_PARAM_set_trust(s->param, trust);
482 }
483
484int SSL_set_trust(SSL *s, int trust)
485 {
486 return X509_VERIFY_PARAM_set_trust(s->param, trust);
487 }
488
919b01cc
PA
489int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
490 {
491 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
492 }
493
494int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
495 {
496 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
497 }
498
56276539
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499void SSL_free(SSL *s)
500 {
501 int i;
502
503 if(s == NULL)
504 return;
505
506 i=CRYPTO_add(&s->references,-1,CRYPTO_LOCK_SSL);
507#ifdef REF_PRINT
508 REF_PRINT("SSL",s);
509#endif
510 if (i > 0) return;
511#ifdef REF_CHECK
512 if (i < 0)
513 {
514 fprintf(stderr,"SSL_free, bad reference count\n");
515 abort(); /* ok */
516 }
517#endif
518
519 if (s->param)
520 X509_VERIFY_PARAM_free(s->param);
521
522 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
523
524 if (s->bbio != NULL)
525 {
526 /* If the buffering BIO is in place, pop it off */
527 if (s->bbio == s->wbio)
528 {
529 s->wbio=BIO_pop(s->wbio);
530 }
531 BIO_free(s->bbio);
532 s->bbio=NULL;
533 }
534 if (s->rbio != NULL)
535 BIO_free_all(s->rbio);
536 if ((s->wbio != NULL) && (s->wbio != s->rbio))
537 BIO_free_all(s->wbio);
538
539 if (s->init_buf != NULL) BUF_MEM_free(s->init_buf);
540
541 /* add extra stuff */
542 if (s->cipher_list != NULL) sk_SSL_CIPHER_free(s->cipher_list);
543 if (s->cipher_list_by_id != NULL) sk_SSL_CIPHER_free(s->cipher_list_by_id);
544
545 /* Make the next call work :-) */
546 if (s->session != NULL)
547 {
548 ssl_clear_bad_session(s);
549 SSL_SESSION_free(s->session);
550 }
551
552 ssl_clear_cipher_ctx(s);
919b01cc
PA
553 ssl_clear_hash_ctx(&s->read_hash);
554 ssl_clear_hash_ctx(&s->write_hash);
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555
556 if (s->cert != NULL) ssl_cert_free(s->cert);
557 /* Free up if allocated */
558
e6bc27f5 559#ifndef OPENSSL_NO_TLSEXT
75607dda
PA
560 if (s->tlsext_hostname)
561 OPENSSL_free(s->tlsext_hostname);
e6bc27f5 562 if (s->initial_ctx) SSL_CTX_free(s->initial_ctx);
919b01cc
PA
563#ifndef OPENSSL_NO_EC
564 if (s->tlsext_ecpointformatlist) OPENSSL_free(s->tlsext_ecpointformatlist);
565 if (s->tlsext_ellipticcurvelist) OPENSSL_free(s->tlsext_ellipticcurvelist);
566#endif /* OPENSSL_NO_EC */
567 if (s->tlsext_opaque_prf_input) OPENSSL_free(s->tlsext_opaque_prf_input);
2e6ca3d0
PA
568 if (s->tlsext_ocsp_exts)
569 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts,
570 X509_EXTENSION_free);
571 if (s->tlsext_ocsp_ids)
572 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
573 if (s->tlsext_ocsp_resp)
574 OPENSSL_free(s->tlsext_ocsp_resp);
e6bc27f5 575#endif
919b01cc 576
56276539
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577 if (s->client_CA != NULL)
578 sk_X509_NAME_pop_free(s->client_CA,X509_NAME_free);
579
580 if (s->method != NULL) s->method->ssl_free(s);
581
5f042374
PA
582 if (s->ctx) SSL_CTX_free(s->ctx);
583
56276539
SS
584#ifndef OPENSSL_NO_KRB5
585 if (s->kssl_ctx != NULL)
586 kssl_ctx_free(s->kssl_ctx);
587#endif /* OPENSSL_NO_KRB5 */
588
589 OPENSSL_free(s);
590 }
591
592void SSL_set_bio(SSL *s,BIO *rbio,BIO *wbio)
593 {
594 /* If the output buffering BIO is still in place, remove it
595 */
596 if (s->bbio != NULL)
597 {
598 if (s->wbio == s->bbio)
599 {
600 s->wbio=s->wbio->next_bio;
601 s->bbio->next_bio=NULL;
602 }
603 }
604 if ((s->rbio != NULL) && (s->rbio != rbio))
605 BIO_free_all(s->rbio);
606 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
607 BIO_free_all(s->wbio);
608 s->rbio=rbio;
609 s->wbio=wbio;
610 }
611
612BIO *SSL_get_rbio(const SSL *s)
613 { return(s->rbio); }
614
615BIO *SSL_get_wbio(const SSL *s)
616 { return(s->wbio); }
617
618int SSL_get_fd(const SSL *s)
619 {
620 return(SSL_get_rfd(s));
621 }
622
623int SSL_get_rfd(const SSL *s)
624 {
625 int ret= -1;
626 BIO *b,*r;
627
628 b=SSL_get_rbio(s);
629 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
630 if (r != NULL)
631 BIO_get_fd(r,&ret);
632 return(ret);
633 }
634
635int SSL_get_wfd(const SSL *s)
636 {
637 int ret= -1;
638 BIO *b,*r;
639
640 b=SSL_get_wbio(s);
641 r=BIO_find_type(b,BIO_TYPE_DESCRIPTOR);
642 if (r != NULL)
643 BIO_get_fd(r,&ret);
644 return(ret);
645 }
646
647#ifndef OPENSSL_NO_SOCK
648int SSL_set_fd(SSL *s,int fd)
649 {
650 int ret=0;
651 BIO *bio=NULL;
652
653 bio=BIO_new(BIO_s_socket());
654
655 if (bio == NULL)
656 {
657 SSLerr(SSL_F_SSL_SET_FD,ERR_R_BUF_LIB);
658 goto err;
659 }
660 BIO_set_fd(bio,fd,BIO_NOCLOSE);
661 SSL_set_bio(s,bio,bio);
662 ret=1;
663err:
664 return(ret);
665 }
666
667int SSL_set_wfd(SSL *s,int fd)
668 {
669 int ret=0;
670 BIO *bio=NULL;
671
672 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
673 || ((int)BIO_get_fd(s->rbio,NULL) != fd))
674 {
675 bio=BIO_new(BIO_s_socket());
676
677 if (bio == NULL)
678 { SSLerr(SSL_F_SSL_SET_WFD,ERR_R_BUF_LIB); goto err; }
679 BIO_set_fd(bio,fd,BIO_NOCLOSE);
680 SSL_set_bio(s,SSL_get_rbio(s),bio);
681 }
682 else
683 SSL_set_bio(s,SSL_get_rbio(s),SSL_get_rbio(s));
684 ret=1;
685err:
686 return(ret);
687 }
688
689int SSL_set_rfd(SSL *s,int fd)
690 {
691 int ret=0;
692 BIO *bio=NULL;
693
694 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
695 || ((int)BIO_get_fd(s->wbio,NULL) != fd))
696 {
697 bio=BIO_new(BIO_s_socket());
698
699 if (bio == NULL)
700 {
701 SSLerr(SSL_F_SSL_SET_RFD,ERR_R_BUF_LIB);
702 goto err;
703 }
704 BIO_set_fd(bio,fd,BIO_NOCLOSE);
705 SSL_set_bio(s,bio,SSL_get_wbio(s));
706 }
707 else
708 SSL_set_bio(s,SSL_get_wbio(s),SSL_get_wbio(s));
709 ret=1;
710err:
711 return(ret);
712 }
713#endif
714
715
716/* return length of latest Finished message we sent, copy to 'buf' */
717size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
718 {
719 size_t ret = 0;
720
721 if (s->s3 != NULL)
722 {
723 ret = s->s3->tmp.finish_md_len;
724 if (count > ret)
725 count = ret;
726 memcpy(buf, s->s3->tmp.finish_md, count);
727 }
728 return ret;
729 }
730
731/* return length of latest Finished message we expected, copy to 'buf' */
732size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
733 {
734 size_t ret = 0;
735
736 if (s->s3 != NULL)
737 {
738 ret = s->s3->tmp.peer_finish_md_len;
739 if (count > ret)
740 count = ret;
741 memcpy(buf, s->s3->tmp.peer_finish_md, count);
742 }
743 return ret;
744 }
745
746
747int SSL_get_verify_mode(const SSL *s)
748 {
749 return(s->verify_mode);
750 }
751
752int SSL_get_verify_depth(const SSL *s)
753 {
754 return X509_VERIFY_PARAM_get_depth(s->param);
755 }
756
757int (*SSL_get_verify_callback(const SSL *s))(int,X509_STORE_CTX *)
758 {
759 return(s->verify_callback);
760 }
761
762int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
763 {
764 return(ctx->verify_mode);
765 }
766
767int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
768 {
769 return X509_VERIFY_PARAM_get_depth(ctx->param);
770 }
771
772int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int,X509_STORE_CTX *)
773 {
774 return(ctx->default_verify_callback);
775 }
776
777void SSL_set_verify(SSL *s,int mode,
778 int (*callback)(int ok,X509_STORE_CTX *ctx))
779 {
780 s->verify_mode=mode;
781 if (callback != NULL)
782 s->verify_callback=callback;
783 }
784
785void SSL_set_verify_depth(SSL *s,int depth)
786 {
787 X509_VERIFY_PARAM_set_depth(s->param, depth);
788 }
789
790void SSL_set_read_ahead(SSL *s,int yes)
791 {
792 s->read_ahead=yes;
793 }
794
795int SSL_get_read_ahead(const SSL *s)
796 {
797 return(s->read_ahead);
798 }
799
800int SSL_pending(const SSL *s)
801 {
802 /* SSL_pending cannot work properly if read-ahead is enabled
803 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)),
804 * and it is impossible to fix since SSL_pending cannot report
805 * errors that may be observed while scanning the new data.
806 * (Note that SSL_pending() is often used as a boolean value,
807 * so we'd better not return -1.)
808 */
809 return(s->method->ssl_pending(s));
810 }
811
812X509 *SSL_get_peer_certificate(const SSL *s)
813 {
814 X509 *r;
815
816 if ((s == NULL) || (s->session == NULL))
817 r=NULL;
818 else
819 r=s->session->peer;
820
821 if (r == NULL) return(r);
822
823 CRYPTO_add(&r->references,1,CRYPTO_LOCK_X509);
824
825 return(r);
826 }
827
828STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
829 {
830 STACK_OF(X509) *r;
831
832 if ((s == NULL) || (s->session == NULL) || (s->session->sess_cert == NULL))
833 r=NULL;
834 else
835 r=s->session->sess_cert->cert_chain;
836
837 /* If we are a client, cert_chain includes the peer's own
838 * certificate; if we are a server, it does not. */
839
840 return(r);
841 }
842
843/* Now in theory, since the calling process own 't' it should be safe to
844 * modify. We need to be able to read f without being hassled */
845void SSL_copy_session_id(SSL *t,const SSL *f)
846 {
847 CERT *tmp;
848
849 /* Do we need to to SSL locking? */
850 SSL_set_session(t,SSL_get_session(f));
851
852 /* what if we are setup as SSLv2 but want to talk SSLv3 or
853 * vice-versa */
854 if (t->method != f->method)
855 {
856 t->method->ssl_free(t); /* cleanup current */
857 t->method=f->method; /* change method */
858 t->method->ssl_new(t); /* setup new */
859 }
860
861 tmp=t->cert;
862 if (f->cert != NULL)
863 {
864 CRYPTO_add(&f->cert->references,1,CRYPTO_LOCK_SSL_CERT);
865 t->cert=f->cert;
866 }
867 else
868 t->cert=NULL;
869 if (tmp != NULL) ssl_cert_free(tmp);
870 SSL_set_session_id_context(t,f->sid_ctx,f->sid_ctx_length);
871 }
872
873/* Fix this so it checks all the valid key/cert options */
874int SSL_CTX_check_private_key(const SSL_CTX *ctx)
875 {
876 if ( (ctx == NULL) ||
877 (ctx->cert == NULL) ||
878 (ctx->cert->key->x509 == NULL))
879 {
880 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
881 return(0);
882 }
883 if (ctx->cert->key->privatekey == NULL)
884 {
885 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
886 return(0);
887 }
888 return(X509_check_private_key(ctx->cert->key->x509, ctx->cert->key->privatekey));
889 }
890
891/* Fix this function so that it takes an optional type parameter */
892int SSL_check_private_key(const SSL *ssl)
893 {
894 if (ssl == NULL)
895 {
896 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,ERR_R_PASSED_NULL_PARAMETER);
897 return(0);
898 }
899 if (ssl->cert == NULL)
900 {
919b01cc 901 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
56276539
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902 return 0;
903 }
904 if (ssl->cert->key->x509 == NULL)
905 {
906 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_CERTIFICATE_ASSIGNED);
907 return(0);
908 }
909 if (ssl->cert->key->privatekey == NULL)
910 {
911 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY,SSL_R_NO_PRIVATE_KEY_ASSIGNED);
912 return(0);
913 }
914 return(X509_check_private_key(ssl->cert->key->x509,
915 ssl->cert->key->privatekey));
916 }
917
918int SSL_accept(SSL *s)
919 {
920 if (s->handshake_func == 0)
921 /* Not properly initialized yet */
922 SSL_set_accept_state(s);
923
924 return(s->method->ssl_accept(s));
925 }
926
927int SSL_connect(SSL *s)
928 {
929 if (s->handshake_func == 0)
930 /* Not properly initialized yet */
931 SSL_set_connect_state(s);
932
933 return(s->method->ssl_connect(s));
934 }
935
936long SSL_get_default_timeout(const SSL *s)
937 {
938 return(s->method->get_timeout());
939 }
940
941int SSL_read(SSL *s,void *buf,int num)
942 {
943 if (s->handshake_func == 0)
944 {
945 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
946 return -1;
947 }
948
949 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
950 {
951 s->rwstate=SSL_NOTHING;
952 return(0);
953 }
954 return(s->method->ssl_read(s,buf,num));
955 }
956
957int SSL_peek(SSL *s,void *buf,int num)
958 {
959 if (s->handshake_func == 0)
960 {
961 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
962 return -1;
963 }
964
965 if (s->shutdown & SSL_RECEIVED_SHUTDOWN)
966 {
967 return(0);
968 }
969 return(s->method->ssl_peek(s,buf,num));
970 }
971
972int SSL_write(SSL *s,const void *buf,int num)
973 {
974 if (s->handshake_func == 0)
975 {
976 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
977 return -1;
978 }
979
980 if (s->shutdown & SSL_SENT_SHUTDOWN)
981 {
982 s->rwstate=SSL_NOTHING;
983 SSLerr(SSL_F_SSL_WRITE,SSL_R_PROTOCOL_IS_SHUTDOWN);
984 return(-1);
985 }
986 return(s->method->ssl_write(s,buf,num));
987 }
988
989int SSL_shutdown(SSL *s)
990 {
991 /* Note that this function behaves differently from what one might
992 * expect. Return values are 0 for no success (yet),
993 * 1 for success; but calling it once is usually not enough,
994 * even if blocking I/O is used (see ssl3_shutdown).
995 */
996
997 if (s->handshake_func == 0)
998 {
999 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
1000 return -1;
1001 }
1002
1003 if ((s != NULL) && !SSL_in_init(s))
1004 return(s->method->ssl_shutdown(s));
1005 else
1006 return(1);
1007 }
1008
1009int SSL_renegotiate(SSL *s)
1010 {
1011 if (s->new_session == 0)
1012 {
1013 s->new_session=1;
1014 }
1015 return(s->method->ssl_renegotiate(s));
1016 }
1017
1018int SSL_renegotiate_pending(SSL *s)
1019 {
1020 /* becomes true when negotiation is requested;
1021 * false again once a handshake has finished */
1022 return (s->new_session != 0);
1023 }
1024
1025long SSL_ctrl(SSL *s,int cmd,long larg,void *parg)
1026 {
1027 long l;
1028
1029 switch (cmd)
1030 {
1031 case SSL_CTRL_GET_READ_AHEAD:
1032 return(s->read_ahead);
1033 case SSL_CTRL_SET_READ_AHEAD:
1034 l=s->read_ahead;
1035 s->read_ahead=larg;
1036 return(l);
1037
1038 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1039 s->msg_callback_arg = parg;
1040 return 1;
1041
1042 case SSL_CTRL_OPTIONS:
1043 return(s->options|=larg);
5f042374
PA
1044 case SSL_CTRL_CLEAR_OPTIONS:
1045 return(s->options&=~larg);
56276539
SS
1046 case SSL_CTRL_MODE:
1047 return(s->mode|=larg);
5f042374
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1048 case SSL_CTRL_CLEAR_MODE:
1049 return(s->mode &=~larg);
56276539
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1050 case SSL_CTRL_GET_MAX_CERT_LIST:
1051 return(s->max_cert_list);
1052 case SSL_CTRL_SET_MAX_CERT_LIST:
1053 l=s->max_cert_list;
1054 s->max_cert_list=larg;
1055 return(l);
1056 case SSL_CTRL_SET_MTU:
599e5fcd 1057#ifndef OPENSSL_NO_DTLS1
9e80567f
PA
1058 if (larg < (long)dtls1_min_mtu())
1059 return 0;
599e5fcd 1060#endif
9e80567f 1061
5f042374
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1062 if (SSL_version(s) == DTLS1_VERSION ||
1063 SSL_version(s) == DTLS1_BAD_VER)
56276539
SS
1064 {
1065 s->d1->mtu = larg;
1066 return larg;
1067 }
1068 return 0;
919b01cc
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1069 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1070 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1071 return 0;
1072 s->max_send_fragment = larg;
1073 return 1;
5f042374
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1074 case SSL_CTRL_GET_RI_SUPPORT:
1075 if (s->s3)
1076 return s->s3->send_connection_binding;
1077 else return 0;
56276539
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1078 default:
1079 return(s->method->ssl_ctrl(s,cmd,larg,parg));
1080 }
1081 }
1082
1083long SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
1084 {
1085 switch(cmd)
1086 {
1087 case SSL_CTRL_SET_MSG_CALLBACK:
1088 s->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1089 return 1;
1090
1091 default:
1092 return(s->method->ssl_callback_ctrl(s,cmd,fp));
1093 }
1094 }
1095
919b01cc 1096LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
56276539
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1097 {
1098 return ctx->sessions;
1099 }
1100
1101long SSL_CTX_ctrl(SSL_CTX *ctx,int cmd,long larg,void *parg)
1102 {
1103 long l;
1104
1105 switch (cmd)
1106 {
1107 case SSL_CTRL_GET_READ_AHEAD:
1108 return(ctx->read_ahead);
1109 case SSL_CTRL_SET_READ_AHEAD:
1110 l=ctx->read_ahead;
1111 ctx->read_ahead=larg;
1112 return(l);
1113
1114 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1115 ctx->msg_callback_arg = parg;
1116 return 1;
1117
1118 case SSL_CTRL_GET_MAX_CERT_LIST:
1119 return(ctx->max_cert_list);
1120 case SSL_CTRL_SET_MAX_CERT_LIST:
1121 l=ctx->max_cert_list;
1122 ctx->max_cert_list=larg;
1123 return(l);
1124
1125 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1126 l=ctx->session_cache_size;
1127 ctx->session_cache_size=larg;
1128 return(l);
1129 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1130 return(ctx->session_cache_size);
1131 case SSL_CTRL_SET_SESS_CACHE_MODE:
1132 l=ctx->session_cache_mode;
1133 ctx->session_cache_mode=larg;
1134 return(l);
1135 case SSL_CTRL_GET_SESS_CACHE_MODE:
1136 return(ctx->session_cache_mode);
1137
1138 case SSL_CTRL_SESS_NUMBER:
919b01cc 1139 return(lh_SSL_SESSION_num_items(ctx->sessions));
56276539
SS
1140 case SSL_CTRL_SESS_CONNECT:
1141 return(ctx->stats.sess_connect);
1142 case SSL_CTRL_SESS_CONNECT_GOOD:
1143 return(ctx->stats.sess_connect_good);
1144 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1145 return(ctx->stats.sess_connect_renegotiate);
1146 case SSL_CTRL_SESS_ACCEPT:
1147 return(ctx->stats.sess_accept);
1148 case SSL_CTRL_SESS_ACCEPT_GOOD:
1149 return(ctx->stats.sess_accept_good);
1150 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1151 return(ctx->stats.sess_accept_renegotiate);
1152 case SSL_CTRL_SESS_HIT:
1153 return(ctx->stats.sess_hit);
1154 case SSL_CTRL_SESS_CB_HIT:
1155 return(ctx->stats.sess_cb_hit);
1156 case SSL_CTRL_SESS_MISSES:
1157 return(ctx->stats.sess_miss);
1158 case SSL_CTRL_SESS_TIMEOUTS:
1159 return(ctx->stats.sess_timeout);
1160 case SSL_CTRL_SESS_CACHE_FULL:
1161 return(ctx->stats.sess_cache_full);
1162 case SSL_CTRL_OPTIONS:
1163 return(ctx->options|=larg);
5f042374
PA
1164 case SSL_CTRL_CLEAR_OPTIONS:
1165 return(ctx->options&=~larg);
56276539
SS
1166 case SSL_CTRL_MODE:
1167 return(ctx->mode|=larg);
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PA
1168 case SSL_CTRL_CLEAR_MODE:
1169 return(ctx->mode&=~larg);
919b01cc
PA
1170 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1171 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1172 return 0;
1173 ctx->max_send_fragment = larg;
1174 return 1;
56276539
SS
1175 default:
1176 return(ctx->method->ssl_ctx_ctrl(ctx,cmd,larg,parg));
1177 }
1178 }
1179
1180long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1181 {
1182 switch(cmd)
1183 {
1184 case SSL_CTRL_SET_MSG_CALLBACK:
1185 ctx->msg_callback = (void (*)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg))(fp);
1186 return 1;
1187
1188 default:
1189 return(ctx->method->ssl_ctx_callback_ctrl(ctx,cmd,fp));
1190 }
1191 }
1192
1193int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1194 {
1195 long l;
1196
1197 l=a->id-b->id;
1198 if (l == 0L)
1199 return(0);
1200 else
1201 return((l > 0)?1:-1);
1202 }
1203
1204int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1205 const SSL_CIPHER * const *bp)
1206 {
1207 long l;
1208
1209 l=(*ap)->id-(*bp)->id;
1210 if (l == 0L)
1211 return(0);
1212 else
1213 return((l > 0)?1:-1);
1214 }
1215
1216/** return a STACK of the ciphers available for the SSL and in order of
1217 * preference */
1218STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1219 {
1220 if (s != NULL)
1221 {
1222 if (s->cipher_list != NULL)
1223 {
1224 return(s->cipher_list);
1225 }
1226 else if ((s->ctx != NULL) &&
1227 (s->ctx->cipher_list != NULL))
1228 {
1229 return(s->ctx->cipher_list);
1230 }
1231 }
1232 return(NULL);
1233 }
1234
1235/** return a STACK of the ciphers available for the SSL and in order of
1236 * algorithm id */
1237STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1238 {
1239 if (s != NULL)
1240 {
1241 if (s->cipher_list_by_id != NULL)
1242 {
1243 return(s->cipher_list_by_id);
1244 }
1245 else if ((s->ctx != NULL) &&
1246 (s->ctx->cipher_list_by_id != NULL))
1247 {
1248 return(s->ctx->cipher_list_by_id);
1249 }
1250 }
1251 return(NULL);
1252 }
1253
1254/** The old interface to get the same thing as SSL_get_ciphers() */
1255const char *SSL_get_cipher_list(const SSL *s,int n)
1256 {
1257 SSL_CIPHER *c;
1258 STACK_OF(SSL_CIPHER) *sk;
1259
1260 if (s == NULL) return(NULL);
1261 sk=SSL_get_ciphers(s);
1262 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1263 return(NULL);
1264 c=sk_SSL_CIPHER_value(sk,n);
1265 if (c == NULL) return(NULL);
1266 return(c->name);
1267 }
1268
1269/** specify the ciphers to be used by default by the SSL_CTX */
1270int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1271 {
1272 STACK_OF(SSL_CIPHER) *sk;
1273
1274 sk=ssl_create_cipher_list(ctx->method,&ctx->cipher_list,
1275 &ctx->cipher_list_by_id,str);
1276 /* ssl_create_cipher_list may return an empty stack if it
1277 * was unable to find a cipher matching the given rule string
1278 * (for example if the rule string specifies a cipher which
919b01cc
PA
1279 * has been disabled). This is not an error as far as
1280 * ssl_create_cipher_list is concerned, and hence
56276539
SS
1281 * ctx->cipher_list and ctx->cipher_list_by_id has been
1282 * updated. */
1283 if (sk == NULL)
1284 return 0;
1285 else if (sk_SSL_CIPHER_num(sk) == 0)
1286 {
1287 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1288 return 0;
1289 }
1290 return 1;
1291 }
1292
1293/** specify the ciphers to be used by the SSL */
1294int SSL_set_cipher_list(SSL *s,const char *str)
1295 {
1296 STACK_OF(SSL_CIPHER) *sk;
1297
1298 sk=ssl_create_cipher_list(s->ctx->method,&s->cipher_list,
1299 &s->cipher_list_by_id,str);
1300 /* see comment in SSL_CTX_set_cipher_list */
1301 if (sk == NULL)
1302 return 0;
1303 else if (sk_SSL_CIPHER_num(sk) == 0)
1304 {
1305 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1306 return 0;
1307 }
1308 return 1;
1309 }
1310
1311/* works well for SSLv2, not so good for SSLv3 */
1312char *SSL_get_shared_ciphers(const SSL *s,char *buf,int len)
1313 {
1314 char *p;
56276539
SS
1315 STACK_OF(SSL_CIPHER) *sk;
1316 SSL_CIPHER *c;
1317 int i;
1318
1319 if ((s->session == NULL) || (s->session->ciphers == NULL) ||
1320 (len < 2))
1321 return(NULL);
1322
1323 p=buf;
1324 sk=s->session->ciphers;
1325 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1326 {
e6bc27f5
PA
1327 int n;
1328
56276539 1329 c=sk_SSL_CIPHER_value(sk,i);
e6bc27f5
PA
1330 n=strlen(c->name);
1331 if (n+1 > len)
56276539 1332 {
e6bc27f5
PA
1333 if (p != buf)
1334 --p;
1335 *p='\0';
1336 return buf;
56276539 1337 }
e6bc27f5
PA
1338 strcpy(p,c->name);
1339 p+=n;
56276539 1340 *(p++)=':';
e6bc27f5 1341 len-=n+1;
56276539
SS
1342 }
1343 p[-1]='\0';
1344 return(buf);
1345 }
1346
1347int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
919b01cc 1348 int (*put_cb)(const SSL_CIPHER *, unsigned char *))
56276539
SS
1349 {
1350 int i,j=0;
1351 SSL_CIPHER *c;
1352 unsigned char *q;
1353#ifndef OPENSSL_NO_KRB5
919b01cc 1354 int nokrb5 = !kssl_tgt_is_available(s->kssl_ctx);
56276539
SS
1355#endif /* OPENSSL_NO_KRB5 */
1356
1357 if (sk == NULL) return(0);
1358 q=p;
1359
1360 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
1361 {
1362 c=sk_SSL_CIPHER_value(sk,i);
1363#ifndef OPENSSL_NO_KRB5
919b01cc
PA
1364 if (((c->algorithm_mkey & SSL_kKRB5) || (c->algorithm_auth & SSL_aKRB5)) &&
1365 nokrb5)
1366 continue;
1367#endif /* OPENSSL_NO_KRB5 */
1368#ifndef OPENSSL_NO_PSK
1369 /* with PSK there must be client callback set */
1370 if (((c->algorithm_mkey & SSL_kPSK) || (c->algorithm_auth & SSL_aPSK)) &&
1371 s->psk_client_callback == NULL)
1372 continue;
1373#endif /* OPENSSL_NO_PSK */
56276539
SS
1374 j = put_cb ? put_cb(c,p) : ssl_put_cipher_by_char(s,c,p);
1375 p+=j;
1376 }
5f042374
PA
1377 /* If p == q, no ciphers and caller indicates an error. Otherwise
1378 * add SCSV if not renegotiating.
1379 */
1380 if (p != q && !s->new_session)
1381 {
1382 static SSL_CIPHER scsv =
1383 {
919b01cc 1384 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
5f042374
PA
1385 };
1386 j = put_cb ? put_cb(&scsv,p) : ssl_put_cipher_by_char(s,&scsv,p);
1387 p+=j;
1388#ifdef OPENSSL_RI_DEBUG
1389 fprintf(stderr, "SCSV sent by client\n");
1390#endif
1391 }
1392
56276539
SS
1393 return(p-q);
1394 }
1395
1396STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1397 STACK_OF(SSL_CIPHER) **skp)
1398 {
919b01cc 1399 const SSL_CIPHER *c;
56276539
SS
1400 STACK_OF(SSL_CIPHER) *sk;
1401 int i,n;
5f042374
PA
1402 if (s->s3)
1403 s->s3->send_connection_binding = 0;
56276539
SS
1404
1405 n=ssl_put_cipher_by_char(s,NULL,NULL);
1406 if ((num%n) != 0)
1407 {
1408 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1409 return(NULL);
1410 }
1411 if ((skp == NULL) || (*skp == NULL))
1412 sk=sk_SSL_CIPHER_new_null(); /* change perhaps later */
1413 else
1414 {
1415 sk= *skp;
1416 sk_SSL_CIPHER_zero(sk);
1417 }
1418
1419 for (i=0; i<num; i+=n)
1420 {
5f042374
PA
1421 /* Check for SCSV */
1422 if (s->s3 && (n != 3 || !p[0]) &&
1423 (p[n-2] == ((SSL3_CK_SCSV >> 8) & 0xff)) &&
1424 (p[n-1] == (SSL3_CK_SCSV & 0xff)))
1425 {
1426 /* SCSV fatal if renegotiating */
1427 if (s->new_session)
1428 {
1429 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);
1430 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
1431 goto err;
1432 }
1433 s->s3->send_connection_binding = 1;
1434 p += n;
1435#ifdef OPENSSL_RI_DEBUG
1436 fprintf(stderr, "SCSV received by server\n");
1437#endif
1438 continue;
1439 }
1440
56276539
SS
1441 c=ssl_get_cipher_by_char(s,p);
1442 p+=n;
1443 if (c != NULL)
1444 {
1445 if (!sk_SSL_CIPHER_push(sk,c))
1446 {
1447 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,ERR_R_MALLOC_FAILURE);
1448 goto err;
1449 }
1450 }
1451 }
1452
1453 if (skp != NULL)
1454 *skp=sk;
1455 return(sk);
1456err:
1457 if ((skp == NULL) || (*skp == NULL))
1458 sk_SSL_CIPHER_free(sk);
1459 return(NULL);
1460 }
1461
919b01cc 1462
e6bc27f5
PA
1463#ifndef OPENSSL_NO_TLSEXT
1464/** return a servername extension value if provided in Client Hello, or NULL.
1465 * So far, only host_name types are defined (RFC 3546).
1466 */
1467
1468const char *SSL_get_servername(const SSL *s, const int type)
1469 {
1470 if (type != TLSEXT_NAMETYPE_host_name)
1471 return NULL;
1472
1473 return s->session && !s->tlsext_hostname ?
1474 s->session->tlsext_hostname :
1475 s->tlsext_hostname;
1476 }
1477
1478int SSL_get_servername_type(const SSL *s)
1479 {
1480 if (s->session && (!s->tlsext_hostname ? s->session->tlsext_hostname : s->tlsext_hostname))
1481 return TLSEXT_NAMETYPE_host_name;
1482 return -1;
1483 }
1484#endif
1485
919b01cc 1486static unsigned long ssl_session_hash(const SSL_SESSION *a)
56276539
SS
1487 {
1488 unsigned long l;
1489
1490 l=(unsigned long)
1491 ((unsigned int) a->session_id[0] )|
1492 ((unsigned int) a->session_id[1]<< 8L)|
1493 ((unsigned long)a->session_id[2]<<16L)|
1494 ((unsigned long)a->session_id[3]<<24L);
1495 return(l);
1496 }
1497
1498/* NB: If this function (or indeed the hash function which uses a sort of
1499 * coarser function than this one) is changed, ensure
1500 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1501 * able to construct an SSL_SESSION that will collide with any existing session
1502 * with a matching session ID. */
919b01cc 1503static int ssl_session_cmp(const SSL_SESSION *a,const SSL_SESSION *b)
56276539
SS
1504 {
1505 if (a->ssl_version != b->ssl_version)
1506 return(1);
1507 if (a->session_id_length != b->session_id_length)
1508 return(1);
1509 return(memcmp(a->session_id,b->session_id,a->session_id_length));
1510 }
1511
1512/* These wrapper functions should remain rather than redeclaring
1513 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1514 * variable. The reason is that the functions aren't static, they're exposed via
1515 * ssl.h. */
919b01cc
PA
1516static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1517static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
56276539 1518
919b01cc 1519SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
56276539
SS
1520 {
1521 SSL_CTX *ret=NULL;
919b01cc 1522
56276539
SS
1523 if (meth == NULL)
1524 {
1525 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_NULL_SSL_METHOD_PASSED);
1526 return(NULL);
1527 }
1528
1529 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0)
1530 {
1531 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1532 goto err;
1533 }
1534 ret=(SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1535 if (ret == NULL)
1536 goto err;
1537
1538 memset(ret,0,sizeof(SSL_CTX));
1539
1540 ret->method=meth;
1541
1542 ret->cert_store=NULL;
1543 ret->session_cache_mode=SSL_SESS_CACHE_SERVER;
1544 ret->session_cache_size=SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1545 ret->session_cache_head=NULL;
1546 ret->session_cache_tail=NULL;
1547
1548 /* We take the system default */
1549 ret->session_timeout=meth->get_timeout();
1550
1551 ret->new_session_cb=0;
1552 ret->remove_session_cb=0;
1553 ret->get_session_cb=0;
1554 ret->generate_session_id=0;
1555
1556 memset((char *)&ret->stats,0,sizeof(ret->stats));
1557
1558 ret->references=1;
1559 ret->quiet_shutdown=0;
1560
1561/* ret->cipher=NULL;*/
1562/* ret->s2->challenge=NULL;
1563 ret->master_key=NULL;
1564 ret->key_arg=NULL;
1565 ret->s2->conn_id=NULL; */
1566
1567 ret->info_callback=NULL;
1568
1569 ret->app_verify_callback=0;
1570 ret->app_verify_arg=NULL;
1571
1572 ret->max_cert_list=SSL_MAX_CERT_LIST_DEFAULT;
1573 ret->read_ahead=0;
1574 ret->msg_callback=0;
1575 ret->msg_callback_arg=NULL;
1576 ret->verify_mode=SSL_VERIFY_NONE;
1577#if 0
1578 ret->verify_depth=-1; /* Don't impose a limit (but x509_lu.c does) */
1579#endif
1580 ret->sid_ctx_length=0;
1581 ret->default_verify_callback=NULL;
1582 if ((ret->cert=ssl_cert_new()) == NULL)
1583 goto err;
1584
1585 ret->default_passwd_callback=0;
1586 ret->default_passwd_callback_userdata=NULL;
1587 ret->client_cert_cb=0;
1588 ret->app_gen_cookie_cb=0;
1589 ret->app_verify_cookie_cb=0;
1590
919b01cc 1591 ret->sessions=lh_SSL_SESSION_new();
56276539
SS
1592 if (ret->sessions == NULL) goto err;
1593 ret->cert_store=X509_STORE_new();
1594 if (ret->cert_store == NULL) goto err;
1595
1596 ssl_create_cipher_list(ret->method,
1597 &ret->cipher_list,&ret->cipher_list_by_id,
919b01cc 1598 meth->version == SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST);
56276539
SS
1599 if (ret->cipher_list == NULL
1600 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0)
1601 {
1602 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_LIBRARY_HAS_NO_CIPHERS);
1603 goto err2;
1604 }
1605
1606 ret->param = X509_VERIFY_PARAM_new();
1607 if (!ret->param)
1608 goto err;
1609
1610 if ((ret->rsa_md5=EVP_get_digestbyname("ssl2-md5")) == NULL)
1611 {
1612 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1613 goto err2;
1614 }
1615 if ((ret->md5=EVP_get_digestbyname("ssl3-md5")) == NULL)
1616 {
1617 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1618 goto err2;
1619 }
1620 if ((ret->sha1=EVP_get_digestbyname("ssl3-sha1")) == NULL)
1621 {
1622 SSLerr(SSL_F_SSL_CTX_NEW,SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1623 goto err2;
1624 }
1625
1626 if ((ret->client_CA=sk_X509_NAME_new_null()) == NULL)
1627 goto err;
1628
1629 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1630
1631 ret->extra_certs=NULL;
1632 ret->comp_methods=SSL_COMP_get_compression_methods();
1633
919b01cc
PA
1634 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1635
e6bc27f5
PA
1636#ifndef OPENSSL_NO_TLSEXT
1637 ret->tlsext_servername_callback = 0;
1638 ret->tlsext_servername_arg = NULL;
1639 /* Setup RFC4507 ticket keys */
1640 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1641 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1642 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1643 ret->options |= SSL_OP_NO_TICKET;
1644
2e6ca3d0
PA
1645 ret->tlsext_status_cb = 0;
1646 ret->tlsext_status_arg = NULL;
1647
683caddb 1648#endif
919b01cc
PA
1649#ifndef OPENSSL_NO_PSK
1650 ret->psk_identity_hint=NULL;
1651 ret->psk_client_callback=NULL;
1652 ret->psk_server_callback=NULL;
1653#endif
1654#ifndef OPENSSL_NO_BUF_FREELISTS
1655 ret->freelist_max_len = SSL_MAX_BUF_FREELIST_LEN_DEFAULT;
1656 ret->rbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
1657 if (!ret->rbuf_freelist)
1658 goto err;
1659 ret->rbuf_freelist->chunklen = 0;
1660 ret->rbuf_freelist->len = 0;
1661 ret->rbuf_freelist->head = NULL;
1662 ret->wbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
1663 if (!ret->wbuf_freelist)
1664 {
1665 OPENSSL_free(ret->rbuf_freelist);
1666 goto err;
1667 }
1668 ret->wbuf_freelist->chunklen = 0;
1669 ret->wbuf_freelist->len = 0;
1670 ret->wbuf_freelist->head = NULL;
1671#endif
683caddb
PA
1672#ifndef OPENSSL_NO_ENGINE
1673 ret->client_cert_engine = NULL;
1674#ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1675#define eng_strx(x) #x
1676#define eng_str(x) eng_strx(x)
1677 /* Use specific client engine automatically... ignore errors */
1678 {
1679 ENGINE *eng;
1680 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1681 if (!eng)
1682 {
1683 ERR_clear_error();
1684 ENGINE_load_builtin_engines();
1685 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1686 }
1687 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
1688 ERR_clear_error();
1689 }
1690#endif
e6bc27f5 1691#endif
5f042374
PA
1692 /* Default is to connect to non-RI servers. When RI is more widely
1693 * deployed might change this.
1694 */
1695 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
e6bc27f5 1696
56276539
SS
1697 return(ret);
1698err:
1699 SSLerr(SSL_F_SSL_CTX_NEW,ERR_R_MALLOC_FAILURE);
1700err2:
1701 if (ret != NULL) SSL_CTX_free(ret);
1702 return(NULL);
1703 }
1704
1705#if 0
1706static void SSL_COMP_free(SSL_COMP *comp)
1707 { OPENSSL_free(comp); }
1708#endif
1709
919b01cc
PA
1710#ifndef OPENSSL_NO_BUF_FREELISTS
1711static void
1712ssl_buf_freelist_free(SSL3_BUF_FREELIST *list)
1713 {
1714 SSL3_BUF_FREELIST_ENTRY *ent, *next;
1715 for (ent = list->head; ent; ent = next)
1716 {
1717 next = ent->next;
1718 OPENSSL_free(ent);
1719 }
1720 OPENSSL_free(list);
1721 }
1722#endif
1723
56276539
SS
1724void SSL_CTX_free(SSL_CTX *a)
1725 {
1726 int i;
1727
1728 if (a == NULL) return;
1729
1730 i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_SSL_CTX);
1731#ifdef REF_PRINT
1732 REF_PRINT("SSL_CTX",a);
1733#endif
1734 if (i > 0) return;
1735#ifdef REF_CHECK
1736 if (i < 0)
1737 {
1738 fprintf(stderr,"SSL_CTX_free, bad reference count\n");
1739 abort(); /* ok */
1740 }
1741#endif
1742
1743 if (a->param)
1744 X509_VERIFY_PARAM_free(a->param);
1745
1746 /*
1747 * Free internal session cache. However: the remove_cb() may reference
1748 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1749 * after the sessions were flushed.
1750 * As the ex_data handling routines might also touch the session cache,
1751 * the most secure solution seems to be: empty (flush) the cache, then
1752 * free ex_data, then finally free the cache.
1753 * (See ticket [openssl.org #212].)
1754 */
1755 if (a->sessions != NULL)
1756 SSL_CTX_flush_sessions(a,0);
1757
1758 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1759
1760 if (a->sessions != NULL)
919b01cc 1761 lh_SSL_SESSION_free(a->sessions);
56276539
SS
1762
1763 if (a->cert_store != NULL)
1764 X509_STORE_free(a->cert_store);
1765 if (a->cipher_list != NULL)
1766 sk_SSL_CIPHER_free(a->cipher_list);
1767 if (a->cipher_list_by_id != NULL)
1768 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1769 if (a->cert != NULL)
1770 ssl_cert_free(a->cert);
1771 if (a->client_CA != NULL)
1772 sk_X509_NAME_pop_free(a->client_CA,X509_NAME_free);
1773 if (a->extra_certs != NULL)
1774 sk_X509_pop_free(a->extra_certs,X509_free);
1775#if 0 /* This should never be done, since it removes a global database */
1776 if (a->comp_methods != NULL)
1777 sk_SSL_COMP_pop_free(a->comp_methods,SSL_COMP_free);
1778#else
1779 a->comp_methods = NULL;
683caddb 1780#endif
919b01cc
PA
1781
1782#ifndef OPENSSL_NO_PSK
1783 if (a->psk_identity_hint)
1784 OPENSSL_free(a->psk_identity_hint);
1785#endif
683caddb
PA
1786#ifndef OPENSSL_NO_ENGINE
1787 if (a->client_cert_engine)
1788 ENGINE_finish(a->client_cert_engine);
56276539 1789#endif
919b01cc
PA
1790
1791#ifndef OPENSSL_NO_BUF_FREELISTS
1792 if (a->wbuf_freelist)
1793 ssl_buf_freelist_free(a->wbuf_freelist);
1794 if (a->rbuf_freelist)
1795 ssl_buf_freelist_free(a->rbuf_freelist);
1796#endif
1797
56276539
SS
1798 OPENSSL_free(a);
1799 }
1800
1801void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1802 {
1803 ctx->default_passwd_callback=cb;
1804 }
1805
1806void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx,void *u)
1807 {
1808 ctx->default_passwd_callback_userdata=u;
1809 }
1810
1811void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, int (*cb)(X509_STORE_CTX *,void *), void *arg)
1812 {
1813 ctx->app_verify_callback=cb;
1814 ctx->app_verify_arg=arg;
1815 }
1816
1817void SSL_CTX_set_verify(SSL_CTX *ctx,int mode,int (*cb)(int, X509_STORE_CTX *))
1818 {
1819 ctx->verify_mode=mode;
1820 ctx->default_verify_callback=cb;
1821 }
1822
1823void SSL_CTX_set_verify_depth(SSL_CTX *ctx,int depth)
1824 {
1825 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
1826 }
1827
919b01cc 1828void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
56276539
SS
1829 {
1830 CERT_PKEY *cpk;
1831 int rsa_enc,rsa_tmp,rsa_sign,dh_tmp,dh_rsa,dh_dsa,dsa_sign;
1832 int rsa_enc_export,dh_rsa_export,dh_dsa_export;
1833 int rsa_tmp_export,dh_tmp_export,kl;
919b01cc 1834 unsigned long mask_k,mask_a,emask_k,emask_a;
5bd86ce5
SS
1835 int have_ecc_cert, ecdh_ok, ecdsa_ok, ecc_pkey_size;
1836#ifndef OPENSSL_NO_ECDH
1837 int have_ecdh_tmp;
1838#endif
56276539
SS
1839 X509 *x = NULL;
1840 EVP_PKEY *ecc_pkey = NULL;
22a79287 1841 int signature_nid = 0, pk_nid = 0, md_nid = 0;
56276539
SS
1842
1843 if (c == NULL) return;
1844
1845 kl=SSL_C_EXPORT_PKEYLENGTH(cipher);
1846
1847#ifndef OPENSSL_NO_RSA
1848 rsa_tmp=(c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1849 rsa_tmp_export=(c->rsa_tmp_cb != NULL ||
1850 (rsa_tmp && RSA_size(c->rsa_tmp)*8 <= kl));
1851#else
1852 rsa_tmp=rsa_tmp_export=0;
1853#endif
1854#ifndef OPENSSL_NO_DH
1855 dh_tmp=(c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
1856 dh_tmp_export=(c->dh_tmp_cb != NULL ||
1857 (dh_tmp && DH_size(c->dh_tmp)*8 <= kl));
1858#else
1859 dh_tmp=dh_tmp_export=0;
1860#endif
1861
1862#ifndef OPENSSL_NO_ECDH
1863 have_ecdh_tmp=(c->ecdh_tmp != NULL || c->ecdh_tmp_cb != NULL);
1864#endif
1865 cpk= &(c->pkeys[SSL_PKEY_RSA_ENC]);
1866 rsa_enc= (cpk->x509 != NULL && cpk->privatekey != NULL);
1867 rsa_enc_export=(rsa_enc && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1868 cpk= &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1869 rsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1870 cpk= &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1871 dsa_sign=(cpk->x509 != NULL && cpk->privatekey != NULL);
1872 cpk= &(c->pkeys[SSL_PKEY_DH_RSA]);
1873 dh_rsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1874 dh_rsa_export=(dh_rsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1875 cpk= &(c->pkeys[SSL_PKEY_DH_DSA]);
1876/* FIX THIS EAY EAY EAY */
1877 dh_dsa= (cpk->x509 != NULL && cpk->privatekey != NULL);
1878 dh_dsa_export=(dh_dsa && EVP_PKEY_size(cpk->privatekey)*8 <= kl);
1879 cpk= &(c->pkeys[SSL_PKEY_ECC]);
1880 have_ecc_cert= (cpk->x509 != NULL && cpk->privatekey != NULL);
919b01cc
PA
1881 mask_k=0;
1882 mask_a=0;
1883 emask_k=0;
1884 emask_a=0;
1885
1886
56276539
SS
1887
1888#ifdef CIPHER_DEBUG
919b01cc
PA
1889 printf("rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1890 rsa_tmp,rsa_tmp_export,dh_tmp,have_ecdh_tmp,
56276539
SS
1891 rsa_enc,rsa_enc_export,rsa_sign,dsa_sign,dh_rsa,dh_dsa);
1892#endif
919b01cc
PA
1893
1894 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
1895 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
1896 mask_k |= SSL_kGOST;
1897 mask_a |= SSL_aGOST01;
1898 }
1899 cpk = &(c->pkeys[SSL_PKEY_GOST94]);
1900 if (cpk->x509 != NULL && cpk->privatekey !=NULL) {
1901 mask_k |= SSL_kGOST;
1902 mask_a |= SSL_aGOST94;
1903 }
56276539
SS
1904
1905 if (rsa_enc || (rsa_tmp && rsa_sign))
919b01cc 1906 mask_k|=SSL_kRSA;
56276539 1907 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
919b01cc 1908 emask_k|=SSL_kRSA;
56276539
SS
1909
1910#if 0
1911 /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
919b01cc 1912 if ( (dh_tmp || dh_rsa || dh_dsa) &&
56276539 1913 (rsa_enc || rsa_sign || dsa_sign))
919b01cc 1914 mask_k|=SSL_kEDH;
56276539
SS
1915 if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
1916 (rsa_enc || rsa_sign || dsa_sign))
919b01cc 1917 emask_k|=SSL_kEDH;
56276539
SS
1918#endif
1919
919b01cc
PA
1920 if (dh_tmp_export)
1921 emask_k|=SSL_kEDH;
56276539
SS
1922
1923 if (dh_tmp)
919b01cc 1924 mask_k|=SSL_kEDH;
56276539 1925
919b01cc
PA
1926 if (dh_rsa) mask_k|=SSL_kDHr;
1927 if (dh_rsa_export) emask_k|=SSL_kDHr;
56276539 1928
919b01cc
PA
1929 if (dh_dsa) mask_k|=SSL_kDHd;
1930 if (dh_dsa_export) emask_k|=SSL_kDHd;
56276539
SS
1931
1932 if (rsa_enc || rsa_sign)
1933 {
919b01cc
PA
1934 mask_a|=SSL_aRSA;
1935 emask_a|=SSL_aRSA;
56276539
SS
1936 }
1937
1938 if (dsa_sign)
1939 {
919b01cc
PA
1940 mask_a|=SSL_aDSS;
1941 emask_a|=SSL_aDSS;
56276539
SS
1942 }
1943
919b01cc
PA
1944 mask_a|=SSL_aNULL;
1945 emask_a|=SSL_aNULL;
56276539
SS
1946
1947#ifndef OPENSSL_NO_KRB5
919b01cc
PA
1948 mask_k|=SSL_kKRB5;
1949 mask_a|=SSL_aKRB5;
1950 emask_k|=SSL_kKRB5;
1951 emask_a|=SSL_aKRB5;
56276539
SS
1952#endif
1953
1954 /* An ECC certificate may be usable for ECDH and/or
1955 * ECDSA cipher suites depending on the key usage extension.
1956 */
1957 if (have_ecc_cert)
1958 {
919b01cc 1959 /* This call populates extension flags (ex_flags) */
56276539
SS
1960 x = (c->pkeys[SSL_PKEY_ECC]).x509;
1961 X509_check_purpose(x, -1, 0);
1962 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1963 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
1964 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
1965 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
1966 ecc_pkey = X509_get_pubkey(x);
919b01cc 1967 ecc_pkey_size = (ecc_pkey != NULL) ?
56276539
SS
1968 EVP_PKEY_bits(ecc_pkey) : 0;
1969 EVP_PKEY_free(ecc_pkey);
1970 if ((x->sig_alg) && (x->sig_alg->algorithm))
22a79287 1971 {
56276539 1972 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
22a79287
PA
1973 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
1974 }
56276539
SS
1975#ifndef OPENSSL_NO_ECDH
1976 if (ecdh_ok)
1977 {
22a79287
PA
1978
1979 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa)
56276539 1980 {
919b01cc
PA
1981 mask_k|=SSL_kECDHr;
1982 mask_a|=SSL_aECDH;
56276539 1983 if (ecc_pkey_size <= 163)
919b01cc
PA
1984 {
1985 emask_k|=SSL_kECDHr;
1986 emask_a|=SSL_aECDH;
1987 }
56276539 1988 }
919b01cc 1989
22a79287 1990 if (pk_nid == NID_X9_62_id_ecPublicKey)
56276539 1991 {
919b01cc
PA
1992 mask_k|=SSL_kECDHe;
1993 mask_a|=SSL_aECDH;
56276539 1994 if (ecc_pkey_size <= 163)
919b01cc
PA
1995 {
1996 emask_k|=SSL_kECDHe;
1997 emask_a|=SSL_aECDH;
1998 }
56276539
SS
1999 }
2000 }
2001#endif
2002#ifndef OPENSSL_NO_ECDSA
2003 if (ecdsa_ok)
2004 {
919b01cc
PA
2005 mask_a|=SSL_aECDSA;
2006 emask_a|=SSL_aECDSA;
56276539
SS
2007 }
2008#endif
2009 }
2010
2011#ifndef OPENSSL_NO_ECDH
2012 if (have_ecdh_tmp)
2013 {
919b01cc
PA
2014 mask_k|=SSL_kEECDH;
2015 emask_k|=SSL_kEECDH;
56276539
SS
2016 }
2017#endif
919b01cc
PA
2018
2019#ifndef OPENSSL_NO_PSK
2020 mask_k |= SSL_kPSK;
2021 mask_a |= SSL_aPSK;
2022 emask_k |= SSL_kPSK;
2023 emask_a |= SSL_aPSK;
2024#endif
2025
2026 c->mask_k=mask_k;
2027 c->mask_a=mask_a;
2028 c->export_mask_k=emask_k;
2029 c->export_mask_a=emask_a;
56276539
SS
2030 c->valid=1;
2031 }
2032
2033/* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2034#define ku_reject(x, usage) \
2035 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2036
919b01cc
PA
2037#ifndef OPENSSL_NO_EC
2038
2039int ssl_check_srvr_ecc_cert_and_alg(X509 *x, const SSL_CIPHER *cs)
56276539 2040 {
919b01cc 2041 unsigned long alg_k, alg_a;
56276539
SS
2042 EVP_PKEY *pkey = NULL;
2043 int keysize = 0;
22a79287 2044 int signature_nid = 0, md_nid = 0, pk_nid = 0;
56276539 2045
919b01cc
PA
2046 alg_k = cs->algorithm_mkey;
2047 alg_a = cs->algorithm_auth;
2048
56276539
SS
2049 if (SSL_C_IS_EXPORT(cs))
2050 {
2051 /* ECDH key length in export ciphers must be <= 163 bits */
2052 pkey = X509_get_pubkey(x);
2053 if (pkey == NULL) return 0;
2054 keysize = EVP_PKEY_bits(pkey);
2055 EVP_PKEY_free(pkey);
2056 if (keysize > 163) return 0;
2057 }
2058
2059 /* This call populates the ex_flags field correctly */
2060 X509_check_purpose(x, -1, 0);
2061 if ((x->sig_alg) && (x->sig_alg->algorithm))
22a79287 2062 {
56276539 2063 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
22a79287
PA
2064 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2065 }
919b01cc 2066 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr)
56276539
SS
2067 {
2068 /* key usage, if present, must allow key agreement */
2069 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT))
2070 {
919b01cc 2071 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
56276539
SS
2072 return 0;
2073 }
919b01cc 2074 if (alg_k & SSL_kECDHe)
56276539
SS
2075 {
2076 /* signature alg must be ECDSA */
22a79287 2077 if (pk_nid != NID_X9_62_id_ecPublicKey)
56276539 2078 {
919b01cc 2079 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
56276539
SS
2080 return 0;
2081 }
2082 }
919b01cc 2083 if (alg_k & SSL_kECDHr)
56276539
SS
2084 {
2085 /* signature alg must be RSA */
919b01cc 2086
22a79287 2087 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa)
56276539 2088 {
919b01cc 2089 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
56276539
SS
2090 return 0;
2091 }
2092 }
919b01cc
PA
2093 }
2094 if (alg_a & SSL_aECDSA)
56276539
SS
2095 {
2096 /* key usage, if present, must allow signing */
2097 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE))
2098 {
919b01cc 2099 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
56276539
SS
2100 return 0;
2101 }
2102 }
2103
2104 return 1; /* all checks are ok */
2105 }
2106
919b01cc
PA
2107#endif
2108
56276539
SS
2109/* THIS NEEDS CLEANING UP */
2110X509 *ssl_get_server_send_cert(SSL *s)
2111 {
9f1859dd 2112 unsigned long alg_k,alg_a;
56276539 2113 CERT *c;
9f1859dd 2114 int i;
56276539
SS
2115
2116 c=s->cert;
2117 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
919b01cc
PA
2118
2119 alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
2120 alg_a = s->s3->tmp.new_cipher->algorithm_auth;
56276539 2121
919b01cc 2122 if (alg_k & (SSL_kECDHr|SSL_kECDHe))
56276539 2123 {
919b01cc 2124 /* we don't need to look at SSL_kEECDH
56276539
SS
2125 * since no certificate is needed for
2126 * anon ECDH and for authenticated
919b01cc 2127 * EECDH, the check for the auth
56276539
SS
2128 * algorithm will set i correctly
2129 * NOTE: For ECDH-RSA, we need an ECC
919b01cc 2130 * not an RSA cert but for EECDH-RSA
56276539
SS
2131 * we need an RSA cert. Placing the
2132 * checks for SSL_kECDH before RSA
2133 * checks ensures the correct cert is chosen.
2134 */
2135 i=SSL_PKEY_ECC;
2136 }
919b01cc 2137 else if (alg_a & SSL_aECDSA)
56276539
SS
2138 {
2139 i=SSL_PKEY_ECC;
2140 }
919b01cc 2141 else if (alg_k & SSL_kDHr)
56276539 2142 i=SSL_PKEY_DH_RSA;
919b01cc 2143 else if (alg_k & SSL_kDHd)
56276539 2144 i=SSL_PKEY_DH_DSA;
919b01cc 2145 else if (alg_a & SSL_aDSS)
56276539 2146 i=SSL_PKEY_DSA_SIGN;
919b01cc 2147 else if (alg_a & SSL_aRSA)
56276539
SS
2148 {
2149 if (c->pkeys[SSL_PKEY_RSA_ENC].x509 == NULL)
2150 i=SSL_PKEY_RSA_SIGN;
2151 else
2152 i=SSL_PKEY_RSA_ENC;
2153 }
919b01cc 2154 else if (alg_a & SSL_aKRB5)
56276539
SS
2155 {
2156 /* VRS something else here? */
2157 return(NULL);
2158 }
919b01cc
PA
2159 else if (alg_a & SSL_aGOST94)
2160 i=SSL_PKEY_GOST94;
2161 else if (alg_a & SSL_aGOST01)
2162 i=SSL_PKEY_GOST01;
2163 else /* if (alg_a & SSL_aNULL) */
56276539
SS
2164 {
2165 SSLerr(SSL_F_SSL_GET_SERVER_SEND_CERT,ERR_R_INTERNAL_ERROR);
2166 return(NULL);
2167 }
2168 if (c->pkeys[i].x509 == NULL) return(NULL);
2169
2170 return(c->pkeys[i].x509);
2171 }
2172
919b01cc 2173EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *cipher)
56276539 2174 {
919b01cc 2175 unsigned long alg_a;
56276539
SS
2176 CERT *c;
2177
919b01cc 2178 alg_a = cipher->algorithm_auth;
56276539
SS
2179 c=s->cert;
2180
919b01cc 2181 if ((alg_a & SSL_aDSS) &&
56276539
SS
2182 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2183 return(c->pkeys[SSL_PKEY_DSA_SIGN].privatekey);
919b01cc 2184 else if (alg_a & SSL_aRSA)
56276539
SS
2185 {
2186 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2187 return(c->pkeys[SSL_PKEY_RSA_SIGN].privatekey);
2188 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2189 return(c->pkeys[SSL_PKEY_RSA_ENC].privatekey);
2190 else
2191 return(NULL);
2192 }
919b01cc 2193 else if ((alg_a & SSL_aECDSA) &&
56276539
SS
2194 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2195 return(c->pkeys[SSL_PKEY_ECC].privatekey);
919b01cc 2196 else /* if (alg_a & SSL_aNULL) */
56276539
SS
2197 {
2198 SSLerr(SSL_F_SSL_GET_SIGN_PKEY,ERR_R_INTERNAL_ERROR);
2199 return(NULL);
2200 }
2201 }
2202
2203void ssl_update_cache(SSL *s,int mode)
2204 {
2205 int i;
2206
2207 /* If the session_id_length is 0, we are not supposed to cache it,
2208 * and it would be rather hard to do anyway :-) */
2209 if (s->session->session_id_length == 0) return;
2210
919b01cc 2211 i=s->session_ctx->session_cache_mode;
56276539
SS
2212 if ((i & mode) && (!s->hit)
2213 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
919b01cc
PA
2214 || SSL_CTX_add_session(s->session_ctx,s->session))
2215 && (s->session_ctx->new_session_cb != NULL))
56276539
SS
2216 {
2217 CRYPTO_add(&s->session->references,1,CRYPTO_LOCK_SSL_SESSION);
919b01cc 2218 if (!s->session_ctx->new_session_cb(s,s->session))
56276539
SS
2219 SSL_SESSION_free(s->session);
2220 }
2221
2222 /* auto flush every 255 connections */
2223 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) &&
2224 ((i & mode) == mode))
2225 {
2226 if ( (((mode & SSL_SESS_CACHE_CLIENT)
919b01cc
PA
2227 ?s->session_ctx->stats.sess_connect_good
2228 :s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff)
56276539 2229 {
919b01cc 2230 SSL_CTX_flush_sessions(s->session_ctx,(unsigned long)time(NULL));
56276539
SS
2231 }
2232 }
2233 }
2234
919b01cc 2235const SSL_METHOD *SSL_get_ssl_method(SSL *s)
56276539
SS
2236 {
2237 return(s->method);
2238 }
2239
919b01cc 2240int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
56276539
SS
2241 {
2242 int conn= -1;
2243 int ret=1;
2244
2245 if (s->method != meth)
2246 {
2247 if (s->handshake_func != NULL)
2248 conn=(s->handshake_func == s->method->ssl_connect);
2249
2250 if (s->method->version == meth->version)
2251 s->method=meth;
2252 else
2253 {
2254 s->method->ssl_free(s);
2255 s->method=meth;
2256 ret=s->method->ssl_new(s);
2257 }
2258
2259 if (conn == 1)
2260 s->handshake_func=meth->ssl_connect;
2261 else if (conn == 0)
2262 s->handshake_func=meth->ssl_accept;
2263 }
2264 return(ret);
2265 }
2266
2267int SSL_get_error(const SSL *s,int i)
2268 {
2269 int reason;
2270 unsigned long l;
2271 BIO *bio;
2272
2273 if (i > 0) return(SSL_ERROR_NONE);
2274
2275 /* Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2276 * etc, where we do encode the error */
2277 if ((l=ERR_peek_error()) != 0)
2278 {
2279 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2280 return(SSL_ERROR_SYSCALL);
2281 else
2282 return(SSL_ERROR_SSL);
2283 }
2284
2285 if ((i < 0) && SSL_want_read(s))
2286 {
2287 bio=SSL_get_rbio(s);
2288 if (BIO_should_read(bio))
2289 return(SSL_ERROR_WANT_READ);
2290 else if (BIO_should_write(bio))
2291 /* This one doesn't make too much sense ... We never try
2292 * to write to the rbio, and an application program where
2293 * rbio and wbio are separate couldn't even know what it
2294 * should wait for.
2295 * However if we ever set s->rwstate incorrectly
2296 * (so that we have SSL_want_read(s) instead of
2297 * SSL_want_write(s)) and rbio and wbio *are* the same,
2298 * this test works around that bug; so it might be safer
2299 * to keep it. */
2300 return(SSL_ERROR_WANT_WRITE);
2301 else if (BIO_should_io_special(bio))
2302 {
2303 reason=BIO_get_retry_reason(bio);
2304 if (reason == BIO_RR_CONNECT)
2305 return(SSL_ERROR_WANT_CONNECT);
2306 else if (reason == BIO_RR_ACCEPT)
2307 return(SSL_ERROR_WANT_ACCEPT);
2308 else
2309 return(SSL_ERROR_SYSCALL); /* unknown */
2310 }
2311 }
2312
2313 if ((i < 0) && SSL_want_write(s))
2314 {
2315 bio=SSL_get_wbio(s);
2316 if (BIO_should_write(bio))
2317 return(SSL_ERROR_WANT_WRITE);
2318 else if (BIO_should_read(bio))
2319 /* See above (SSL_want_read(s) with BIO_should_write(bio)) */
2320 return(SSL_ERROR_WANT_READ);
2321 else if (BIO_should_io_special(bio))
2322 {
2323 reason=BIO_get_retry_reason(bio);
2324 if (reason == BIO_RR_CONNECT)
2325 return(SSL_ERROR_WANT_CONNECT);
2326 else if (reason == BIO_RR_ACCEPT)
2327 return(SSL_ERROR_WANT_ACCEPT);
2328 else
2329 return(SSL_ERROR_SYSCALL);
2330 }
2331 }
2332 if ((i < 0) && SSL_want_x509_lookup(s))
2333 {
2334 return(SSL_ERROR_WANT_X509_LOOKUP);
2335 }
2336
2337 if (i == 0)
2338 {
2339 if (s->version == SSL2_VERSION)
2340 {
2341 /* assume it is the socket being closed */
2342 return(SSL_ERROR_ZERO_RETURN);
2343 }
2344 else
2345 {
2346 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2347 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2348 return(SSL_ERROR_ZERO_RETURN);
2349 }
2350 }
2351 return(SSL_ERROR_SYSCALL);
2352 }
2353
2354int SSL_do_handshake(SSL *s)
2355 {
2356 int ret=1;
2357
2358 if (s->handshake_func == NULL)
2359 {
2360 SSLerr(SSL_F_SSL_DO_HANDSHAKE,SSL_R_CONNECTION_TYPE_NOT_SET);
2361 return(-1);
2362 }
2363
2364 s->method->ssl_renegotiate_check(s);
2365
2366 if (SSL_in_init(s) || SSL_in_before(s))
2367 {
2368 ret=s->handshake_func(s);
2369 }
2370 return(ret);
2371 }
2372
2373/* For the next 2 functions, SSL_clear() sets shutdown and so
2374 * one of these calls will reset it */
2375void SSL_set_accept_state(SSL *s)
2376 {
2377 s->server=1;
2378 s->shutdown=0;
2379 s->state=SSL_ST_ACCEPT|SSL_ST_BEFORE;
2380 s->handshake_func=s->method->ssl_accept;
2381 /* clear the current cipher */
2382 ssl_clear_cipher_ctx(s);
919b01cc
PA
2383 ssl_clear_hash_ctx(&s->read_hash);
2384 ssl_clear_hash_ctx(&s->write_hash);
56276539
SS
2385 }
2386
2387void SSL_set_connect_state(SSL *s)
2388 {
2389 s->server=0;
2390 s->shutdown=0;
2391 s->state=SSL_ST_CONNECT|SSL_ST_BEFORE;
2392 s->handshake_func=s->method->ssl_connect;
2393 /* clear the current cipher */
2394 ssl_clear_cipher_ctx(s);
919b01cc
PA
2395 ssl_clear_hash_ctx(&s->read_hash);
2396 ssl_clear_hash_ctx(&s->write_hash);
56276539
SS
2397 }
2398
2399int ssl_undefined_function(SSL *s)
2400 {
2401 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2402 return(0);
2403 }
2404
2405int ssl_undefined_void_function(void)
2406 {
2407 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2408 return(0);
2409 }
2410
2411int ssl_undefined_const_function(const SSL *s)
2412 {
2413 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2414 return(0);
2415 }
2416
2417SSL_METHOD *ssl_bad_method(int ver)
2418 {
2419 SSLerr(SSL_F_SSL_BAD_METHOD,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2420 return(NULL);
2421 }
2422
2423const char *SSL_get_version(const SSL *s)
2424 {
2425 if (s->version == TLS1_VERSION)
2426 return("TLSv1");
2427 else if (s->version == SSL3_VERSION)
2428 return("SSLv3");
2429 else if (s->version == SSL2_VERSION)
2430 return("SSLv2");
2431 else
2432 return("unknown");
2433 }
2434
2435SSL *SSL_dup(SSL *s)
2436 {
2437 STACK_OF(X509_NAME) *sk;
2438 X509_NAME *xn;
2439 SSL *ret;
2440 int i;
919b01cc 2441
56276539
SS
2442 if ((ret=SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2443 return(NULL);
2444
2445 ret->version = s->version;
2446 ret->type = s->type;
2447 ret->method = s->method;
2448
2449 if (s->session != NULL)
2450 {
2451 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2452 SSL_copy_session_id(ret,s);
2453 }
2454 else
2455 {
2456 /* No session has been established yet, so we have to expect
2457 * that s->cert or ret->cert will be changed later --
2458 * they should not both point to the same object,
2459 * and thus we can't use SSL_copy_session_id. */
2460
2461 ret->method->ssl_free(ret);
2462 ret->method = s->method;
2463 ret->method->ssl_new(ret);
2464
2465 if (s->cert != NULL)
2466 {
2467 if (ret->cert != NULL)
2468 {
2469 ssl_cert_free(ret->cert);
2470 }
2471 ret->cert = ssl_cert_dup(s->cert);
2472 if (ret->cert == NULL)
2473 goto err;
2474 }
2475
2476 SSL_set_session_id_context(ret,
2477 s->sid_ctx, s->sid_ctx_length);
2478 }
2479
2480 ret->options=s->options;
2481 ret->mode=s->mode;
2482 SSL_set_max_cert_list(ret,SSL_get_max_cert_list(s));
2483 SSL_set_read_ahead(ret,SSL_get_read_ahead(s));
2484 ret->msg_callback = s->msg_callback;
2485 ret->msg_callback_arg = s->msg_callback_arg;
2486 SSL_set_verify(ret,SSL_get_verify_mode(s),
2487 SSL_get_verify_callback(s));
2488 SSL_set_verify_depth(ret,SSL_get_verify_depth(s));
2489 ret->generate_session_id = s->generate_session_id;
2490
2491 SSL_set_info_callback(ret,SSL_get_info_callback(s));
2492
2493 ret->debug=s->debug;
2494
2495 /* copy app data, a little dangerous perhaps */
2496 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2497 goto err;
2498
2499 /* setup rbio, and wbio */
2500 if (s->rbio != NULL)
2501 {
2502 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
2503 goto err;
2504 }
2505 if (s->wbio != NULL)
2506 {
2507 if (s->wbio != s->rbio)
2508 {
2509 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
2510 goto err;
2511 }
2512 else
2513 ret->wbio=ret->rbio;
2514 }
2515 ret->rwstate = s->rwstate;
2516 ret->in_handshake = s->in_handshake;
2517 ret->handshake_func = s->handshake_func;
2518 ret->server = s->server;
2519 ret->new_session = s->new_session;
2520 ret->quiet_shutdown = s->quiet_shutdown;
2521 ret->shutdown=s->shutdown;
2522 ret->state=s->state; /* SSL_dup does not really work at any state, though */
2523 ret->rstate=s->rstate;
2524 ret->init_num = 0; /* would have to copy ret->init_buf, ret->init_msg, ret->init_num, ret->init_off */
2525 ret->hit=s->hit;
2526
2527 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2528
2529 /* dup the cipher_list and cipher_list_by_id stacks */
2530 if (s->cipher_list != NULL)
2531 {
2532 if ((ret->cipher_list=sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2533 goto err;
2534 }
2535 if (s->cipher_list_by_id != NULL)
2536 if ((ret->cipher_list_by_id=sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2537 == NULL)
2538 goto err;
2539
2540 /* Dup the client_CA list */
2541 if (s->client_CA != NULL)
2542 {
2543 if ((sk=sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2544 ret->client_CA=sk;
2545 for (i=0; i<sk_X509_NAME_num(sk); i++)
2546 {
2547 xn=sk_X509_NAME_value(sk,i);
2548 if (sk_X509_NAME_set(sk,i,X509_NAME_dup(xn)) == NULL)
2549 {
2550 X509_NAME_free(xn);
2551 goto err;
2552 }
2553 }
2554 }
2555
2556 if (0)
2557 {
2558err:
2559 if (ret != NULL) SSL_free(ret);
2560 ret=NULL;
2561 }
2562 return(ret);
2563 }
2564
2565void ssl_clear_cipher_ctx(SSL *s)
2566 {
2567 if (s->enc_read_ctx != NULL)
2568 {
2569 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2570 OPENSSL_free(s->enc_read_ctx);
2571 s->enc_read_ctx=NULL;
2572 }
2573 if (s->enc_write_ctx != NULL)
2574 {
2575 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2576 OPENSSL_free(s->enc_write_ctx);
2577 s->enc_write_ctx=NULL;
2578 }
5bd86ce5 2579#ifndef OPENSSL_NO_COMP
56276539
SS
2580 if (s->expand != NULL)
2581 {
2582 COMP_CTX_free(s->expand);
2583 s->expand=NULL;
2584 }
2585 if (s->compress != NULL)
2586 {
2587 COMP_CTX_free(s->compress);
2588 s->compress=NULL;
2589 }
5bd86ce5 2590#endif
56276539
SS
2591 }
2592
2593/* Fix this function so that it takes an optional type parameter */
2594X509 *SSL_get_certificate(const SSL *s)
2595 {
2596 if (s->cert != NULL)
2597 return(s->cert->key->x509);
2598 else
2599 return(NULL);
2600 }
2601
2602/* Fix this function so that it takes an optional type parameter */
2603EVP_PKEY *SSL_get_privatekey(SSL *s)
2604 {
2605 if (s->cert != NULL)
2606 return(s->cert->key->privatekey);
2607 else
2608 return(NULL);
2609 }
2610
919b01cc 2611const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
56276539
SS
2612 {
2613 if ((s->session != NULL) && (s->session->cipher != NULL))
2614 return(s->session->cipher);
2615 return(NULL);
2616 }
5bd86ce5
SS
2617#ifdef OPENSSL_NO_COMP
2618const void *SSL_get_current_compression(SSL *s)
2619 {
2620 return NULL;
2621 }
2622const void *SSL_get_current_expansion(SSL *s)
2623 {
2624 return NULL;
2625 }
2626#else
56276539
SS
2627
2628const COMP_METHOD *SSL_get_current_compression(SSL *s)
2629 {
2630 if (s->compress != NULL)
2631 return(s->compress->meth);
2632 return(NULL);
2633 }
2634
2635const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2636 {
2637 if (s->expand != NULL)
2638 return(s->expand->meth);
2639 return(NULL);
2640 }
5bd86ce5 2641#endif
56276539
SS
2642
2643int ssl_init_wbio_buffer(SSL *s,int push)
2644 {
2645 BIO *bbio;
2646
2647 if (s->bbio == NULL)
2648 {
2649 bbio=BIO_new(BIO_f_buffer());
2650 if (bbio == NULL) return(0);
2651 s->bbio=bbio;
2652 }
2653 else
2654 {
2655 bbio=s->bbio;
2656 if (s->bbio == s->wbio)
2657 s->wbio=BIO_pop(s->wbio);
2658 }
2659 (void)BIO_reset(bbio);
2660/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2661 if (!BIO_set_read_buffer_size(bbio,1))
2662 {
2663 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER,ERR_R_BUF_LIB);
2664 return(0);
2665 }
2666 if (push)
2667 {
2668 if (s->wbio != bbio)
2669 s->wbio=BIO_push(bbio,s->wbio);
2670 }
2671 else
2672 {
2673 if (s->wbio == bbio)
2674 s->wbio=BIO_pop(bbio);
2675 }
2676 return(1);
2677 }
2678
2679void ssl_free_wbio_buffer(SSL *s)
2680 {
2681 if (s->bbio == NULL) return;
2682
2683 if (s->bbio == s->wbio)
2684 {
2685 /* remove buffering */
2686 s->wbio=BIO_pop(s->wbio);
2687#ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids adding one more preprocessor symbol */
2688 assert(s->wbio != NULL);
919b01cc 2689#endif
56276539
SS
2690 }
2691 BIO_free(s->bbio);
2692 s->bbio=NULL;
2693 }
2694
2695void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx,int mode)
2696 {
2697 ctx->quiet_shutdown=mode;
2698 }
2699
2700int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2701 {
2702 return(ctx->quiet_shutdown);
2703 }
2704
2705void SSL_set_quiet_shutdown(SSL *s,int mode)
2706 {
2707 s->quiet_shutdown=mode;
2708 }
2709
2710int SSL_get_quiet_shutdown(const SSL *s)
2711 {
2712 return(s->quiet_shutdown);
2713 }
2714
2715void SSL_set_shutdown(SSL *s,int mode)
2716 {
2717 s->shutdown=mode;
2718 }
2719
2720int SSL_get_shutdown(const SSL *s)
2721 {
2722 return(s->shutdown);
2723 }
2724
2725int SSL_version(const SSL *s)
2726 {
2727 return(s->version);
2728 }
2729
2730SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2731 {
2732 return(ssl->ctx);
2733 }
2734
e6bc27f5
PA
2735SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
2736 {
2737 if (ssl->ctx == ctx)
2738 return ssl->ctx;
2739#ifndef OPENSSL_NO_TLSEXT
2740 if (ctx == NULL)
2741 ctx = ssl->initial_ctx;
2742#endif
2743 if (ssl->cert != NULL)
2744 ssl_cert_free(ssl->cert);
2745 ssl->cert = ssl_cert_dup(ctx->cert);
2746 CRYPTO_add(&ctx->references,1,CRYPTO_LOCK_SSL_CTX);
2747 if (ssl->ctx != NULL)
2748 SSL_CTX_free(ssl->ctx); /* decrement reference count */
2749 ssl->ctx = ctx;
2750 return(ssl->ctx);
2751 }
2752
56276539
SS
2753#ifndef OPENSSL_NO_STDIO
2754int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2755 {
2756 return(X509_STORE_set_default_paths(ctx->cert_store));
2757 }
2758
2759int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2760 const char *CApath)
2761 {
2762 return(X509_STORE_load_locations(ctx->cert_store,CAfile,CApath));
2763 }
2764#endif
2765
2766void SSL_set_info_callback(SSL *ssl,
e40c9513 2767 void (*cb)(const SSL *ssl,int type,int val))
56276539
SS
2768 {
2769 ssl->info_callback=cb;
2770 }
2771
2772/* One compiler (Diab DCC) doesn't like argument names in returned
2773 function pointer. */
919b01cc 2774void (*SSL_get_info_callback(const SSL *ssl))(const SSL * /*ssl*/,int /*type*/,int /*val*/)
56276539
SS
2775 {
2776 return ssl->info_callback;
2777 }
2778
2779int SSL_state(const SSL *ssl)
2780 {
2781 return(ssl->state);
2782 }
2783
2784void SSL_set_verify_result(SSL *ssl,long arg)
2785 {
2786 ssl->verify_result=arg;
2787 }
2788
2789long SSL_get_verify_result(const SSL *ssl)
2790 {
2791 return(ssl->verify_result);
2792 }
2793
2794int SSL_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2795 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2796 {
2797 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2798 new_func, dup_func, free_func);
2799 }
2800
2801int SSL_set_ex_data(SSL *s,int idx,void *arg)
2802 {
2803 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2804 }
2805
2806void *SSL_get_ex_data(const SSL *s,int idx)
2807 {
2808 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2809 }
2810
2811int SSL_CTX_get_ex_new_index(long argl,void *argp,CRYPTO_EX_new *new_func,
2812 CRYPTO_EX_dup *dup_func,CRYPTO_EX_free *free_func)
2813 {
2814 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2815 new_func, dup_func, free_func);
2816 }
2817
2818int SSL_CTX_set_ex_data(SSL_CTX *s,int idx,void *arg)
2819 {
2820 return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
2821 }
2822
2823void *SSL_CTX_get_ex_data(const SSL_CTX *s,int idx)
2824 {
2825 return(CRYPTO_get_ex_data(&s->ex_data,idx));
2826 }
2827
2828int ssl_ok(SSL *s)
2829 {
2830 return(1);
2831 }
2832
2833X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
2834 {
2835 return(ctx->cert_store);
2836 }
2837
2838void SSL_CTX_set_cert_store(SSL_CTX *ctx,X509_STORE *store)
2839 {
2840 if (ctx->cert_store != NULL)
2841 X509_STORE_free(ctx->cert_store);
2842 ctx->cert_store=store;
2843 }
2844
2845int SSL_want(const SSL *s)
2846 {
2847 return(s->rwstate);
2848 }
2849
2850/*!
2851 * \brief Set the callback for generating temporary RSA keys.
2852 * \param ctx the SSL context.
2853 * \param cb the callback
2854 */
2855
2856#ifndef OPENSSL_NO_RSA
2857void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx,RSA *(*cb)(SSL *ssl,
2858 int is_export,
2859 int keylength))
2860 {
2861 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
2862 }
2863
2864void SSL_set_tmp_rsa_callback(SSL *ssl,RSA *(*cb)(SSL *ssl,
2865 int is_export,
2866 int keylength))
2867 {
2868 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
2869 }
2870#endif
2871
2872#ifdef DOXYGEN
2873/*!
2874 * \brief The RSA temporary key callback function.
2875 * \param ssl the SSL session.
2876 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2877 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2878 * of the required key in bits.
2879 * \return the temporary RSA key.
2880 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2881 */
2882
2883RSA *cb(SSL *ssl,int is_export,int keylength)
2884 {}
2885#endif
2886
2887/*!
2888 * \brief Set the callback for generating temporary DH keys.
2889 * \param ctx the SSL context.
2890 * \param dh the callback
2891 */
2892
2893#ifndef OPENSSL_NO_DH
2894void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,DH *(*dh)(SSL *ssl,int is_export,
919b01cc 2895 int keylength))
56276539
SS
2896 {
2897 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
2898 }
2899
2900void SSL_set_tmp_dh_callback(SSL *ssl,DH *(*dh)(SSL *ssl,int is_export,
919b01cc 2901 int keylength))
56276539
SS
2902 {
2903 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
2904 }
2905#endif
2906
2907#ifndef OPENSSL_NO_ECDH
2908void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
919b01cc 2909 int keylength))
56276539
SS
2910 {
2911 SSL_CTX_callback_ctrl(ctx,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
2912 }
2913
2914void SSL_set_tmp_ecdh_callback(SSL *ssl,EC_KEY *(*ecdh)(SSL *ssl,int is_export,
919b01cc 2915 int keylength))
56276539
SS
2916 {
2917 SSL_callback_ctrl(ssl,SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
2918 }
2919#endif
2920
919b01cc
PA
2921#ifndef OPENSSL_NO_PSK
2922int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
2923 {
2924 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
2925 {
2926 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
2927 return 0;
2928 }
2929 if (ctx->psk_identity_hint != NULL)
2930 OPENSSL_free(ctx->psk_identity_hint);
2931 if (identity_hint != NULL)
2932 {
2933 ctx->psk_identity_hint = BUF_strdup(identity_hint);
2934 if (ctx->psk_identity_hint == NULL)
2935 return 0;
2936 }
2937 else
2938 ctx->psk_identity_hint = NULL;
2939 return 1;
2940 }
2941
2942int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
2943 {
2944 if (s == NULL)
2945 return 0;
2946
2947 if (s->session == NULL)
2948 return 1; /* session not created yet, ignored */
2949
2950 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN)
2951 {
2952 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
2953 return 0;
2954 }
2955 if (s->session->psk_identity_hint != NULL)
2956 OPENSSL_free(s->session->psk_identity_hint);
2957 if (identity_hint != NULL)
2958 {
2959 s->session->psk_identity_hint = BUF_strdup(identity_hint);
2960 if (s->session->psk_identity_hint == NULL)
2961 return 0;
2962 }
2963 else
2964 s->session->psk_identity_hint = NULL;
2965 return 1;
2966 }
2967
2968const char *SSL_get_psk_identity_hint(const SSL *s)
2969 {
2970 if (s == NULL || s->session == NULL)
2971 return NULL;
2972 return(s->session->psk_identity_hint);
2973 }
2974
2975const char *SSL_get_psk_identity(const SSL *s)
2976 {
2977 if (s == NULL || s->session == NULL)
2978 return NULL;
2979 return(s->session->psk_identity);
2980 }
2981
2982void SSL_set_psk_client_callback(SSL *s,
2983 unsigned int (*cb)(SSL *ssl, const char *hint,
2984 char *identity, unsigned int max_identity_len, unsigned char *psk,
2985 unsigned int max_psk_len))
2986 {
2987 s->psk_client_callback = cb;
2988 }
2989
2990void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
2991 unsigned int (*cb)(SSL *ssl, const char *hint,
2992 char *identity, unsigned int max_identity_len, unsigned char *psk,
2993 unsigned int max_psk_len))
2994 {
2995 ctx->psk_client_callback = cb;
2996 }
2997
2998void SSL_set_psk_server_callback(SSL *s,
2999 unsigned int (*cb)(SSL *ssl, const char *identity,
3000 unsigned char *psk, unsigned int max_psk_len))
3001 {
3002 s->psk_server_callback = cb;
3003 }
3004
3005void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3006 unsigned int (*cb)(SSL *ssl, const char *identity,
3007 unsigned char *psk, unsigned int max_psk_len))
3008 {
3009 ctx->psk_server_callback = cb;
3010 }
3011#endif
56276539
SS
3012
3013void 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))
3014 {
3015 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3016 }
3017void 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))
3018 {
3019 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3020 }
3021
919b01cc
PA
3022/* Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3023 * vairable, freeing EVP_MD_CTX previously stored in that variable, if
3024 * any. If EVP_MD pointer is passed, initializes ctx with this md
3025 * Returns newly allocated ctx;
3026 */
3027
3028EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md)
3029{
3030 ssl_clear_hash_ctx(hash);
3031 *hash = EVP_MD_CTX_create();
3032 if (md) EVP_DigestInit_ex(*hash,md,NULL);
3033 return *hash;
3034}
3035void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3036{
56276539 3037
919b01cc
PA
3038 if (*hash) EVP_MD_CTX_destroy(*hash);
3039 *hash=NULL;
3040}
56276539
SS
3041
3042#if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
3043#include "../crypto/bio/bss_file.c"
3044#endif
3045
3046IMPLEMENT_STACK_OF(SSL_CIPHER)
3047IMPLEMENT_STACK_OF(SSL_COMP)
919b01cc
PA
3048IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER,
3049 ssl_cipher_id);