Line data Source code
1 : /*
2 : * ! \file ssl/ssl_lib.c \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) 1998-2007 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 : * 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 : */
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>
154 : #include <openssl/rand.h>
155 : #include <openssl/ocsp.h>
156 : #ifndef OPENSSL_NO_DH
157 : # include <openssl/dh.h>
158 : #endif
159 : #ifndef OPENSSL_NO_ENGINE
160 : # include <openssl/engine.h>
161 : #endif
162 :
163 : const char *SSL_version_str = OPENSSL_VERSION_TEXT;
164 :
165 : SSL3_ENC_METHOD ssl3_undef_enc_method = {
166 : /*
167 : * evil casts, but these functions are only called if there's a library
168 : * bug
169 : */
170 : (int (*)(SSL *, int))ssl_undefined_function,
171 : (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
172 : ssl_undefined_function,
173 : (int (*)(SSL *, unsigned char *, unsigned char *, int))
174 : ssl_undefined_function,
175 : (int (*)(SSL *, int))ssl_undefined_function,
176 : (int (*)(SSL *, const char *, int, unsigned char *))
177 : ssl_undefined_function,
178 : 0, /* finish_mac_length */
179 : (int (*)(SSL *, int, unsigned char *))ssl_undefined_function,
180 : NULL, /* client_finished_label */
181 : 0, /* client_finished_label_len */
182 : NULL, /* server_finished_label */
183 : 0, /* server_finished_label_len */
184 : (int (*)(int))ssl_undefined_function,
185 : (int (*)(SSL *, unsigned char *, size_t, const char *,
186 : size_t, const unsigned char *, size_t,
187 : int use_context))ssl_undefined_function,
188 : };
189 :
190 1495 : int SSL_clear(SSL *s)
191 : {
192 :
193 1495 : if (s->method == NULL) {
194 0 : SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED);
195 0 : return (0);
196 : }
197 :
198 1495 : if (ssl_clear_bad_session(s)) {
199 0 : SSL_SESSION_free(s->session);
200 0 : s->session = NULL;
201 : }
202 :
203 1496 : s->error = 0;
204 1496 : s->hit = 0;
205 1496 : s->shutdown = 0;
206 :
207 : #if 0
208 : /*
209 : * Disabled since version 1.10 of this file (early return not
210 : * needed because SSL_clear is not called when doing renegotiation)
211 : */
212 : /*
213 : * This is set if we are doing dynamic renegotiation so keep
214 : * the old cipher. It is sort of a SSL_clear_lite :-)
215 : */
216 : if (s->renegotiate)
217 : return (1);
218 : #else
219 1496 : if (s->renegotiate) {
220 0 : SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR);
221 0 : return 0;
222 : }
223 : #endif
224 :
225 1496 : s->type = 0;
226 :
227 1496 : s->state = SSL_ST_BEFORE | ((s->server) ? SSL_ST_ACCEPT : SSL_ST_CONNECT);
228 :
229 1496 : s->version = s->method->version;
230 1496 : s->client_version = s->version;
231 1496 : s->rwstate = SSL_NOTHING;
232 1496 : s->rstate = SSL_ST_READ_HEADER;
233 : #if 0
234 : s->read_ahead = s->ctx->read_ahead;
235 : #endif
236 :
237 1496 : if (s->init_buf != NULL) {
238 0 : BUF_MEM_free(s->init_buf);
239 0 : s->init_buf = NULL;
240 : }
241 :
242 1496 : ssl_clear_cipher_ctx(s);
243 : ssl_clear_hash_ctx(&s->read_hash);
244 : ssl_clear_hash_ctx(&s->write_hash);
245 :
246 1493 : s->first_packet = 0;
247 :
248 : #if 1
249 : /*
250 : * Check to see if we were changed into a different method, if so, revert
251 : * back if we are not doing session-id reuse.
252 : */
253 1493 : if (!s->in_handshake && (s->session == NULL)
254 747 : && (s->method != s->ctx->method)) {
255 0 : s->method->ssl_free(s);
256 0 : s->method = s->ctx->method;
257 0 : if (!s->method->ssl_new(s))
258 : return (0);
259 : } else
260 : #endif
261 1493 : s->method->ssl_clear(s);
262 : return (1);
263 : }
264 :
265 : /** Used to change an SSL_CTXs default SSL method type */
266 0 : int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
267 : {
268 : STACK_OF(SSL_CIPHER) *sk;
269 :
270 0 : ctx->method = meth;
271 :
272 0 : sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list),
273 : &(ctx->cipher_list_by_id),
274 0 : meth->version ==
275 : SSL2_VERSION ? "SSLv2" :
276 0 : SSL_DEFAULT_CIPHER_LIST, ctx->cert);
277 0 : if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
278 0 : SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,
279 : SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
280 0 : return (0);
281 : }
282 : return (1);
283 : }
284 :
285 750 : SSL *SSL_new(SSL_CTX *ctx)
286 : {
287 : SSL *s;
288 :
289 750 : if (ctx == NULL) {
290 0 : SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);
291 0 : return (NULL);
292 : }
293 750 : if (ctx->method == NULL) {
294 0 : SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
295 0 : return (NULL);
296 : }
297 :
298 750 : s = (SSL *)OPENSSL_malloc(sizeof(SSL));
299 750 : if (s == NULL)
300 : goto err;
301 : memset(s, 0, sizeof(SSL));
302 :
303 : #ifndef OPENSSL_NO_KRB5
304 : s->kssl_ctx = kssl_ctx_new();
305 : #endif /* OPENSSL_NO_KRB5 */
306 :
307 750 : s->options = ctx->options;
308 750 : s->mode = ctx->mode;
309 750 : s->max_cert_list = ctx->max_cert_list;
310 :
311 750 : if (ctx->cert != NULL) {
312 : /*
313 : * Earlier library versions used to copy the pointer to the CERT, not
314 : * its contents; only when setting new parameters for the per-SSL
315 : * copy, ssl_cert_new would be called (and the direct reference to
316 : * the per-SSL_CTX settings would be lost, but those still were
317 : * indirectly accessed for various purposes, and for that reason they
318 : * used to be known as s->ctx->default_cert). Now we don't look at the
319 : * SSL_CTX's CERT after having duplicated it once.
320 : */
321 :
322 750 : s->cert = ssl_cert_dup(ctx->cert);
323 750 : if (s->cert == NULL)
324 : goto err;
325 : } else
326 0 : s->cert = NULL; /* Cannot really happen (see SSL_CTX_new) */
327 :
328 750 : s->read_ahead = ctx->read_ahead;
329 750 : s->msg_callback = ctx->msg_callback;
330 750 : s->msg_callback_arg = ctx->msg_callback_arg;
331 750 : s->verify_mode = ctx->verify_mode;
332 : #if 0
333 : s->verify_depth = ctx->verify_depth;
334 : #endif
335 750 : s->sid_ctx_length = ctx->sid_ctx_length;
336 750 : OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
337 750 : memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
338 750 : s->verify_callback = ctx->default_verify_callback;
339 750 : s->generate_session_id = ctx->generate_session_id;
340 :
341 750 : s->param = X509_VERIFY_PARAM_new();
342 750 : if (!s->param)
343 : goto err;
344 750 : X509_VERIFY_PARAM_inherit(s->param, ctx->param);
345 : #if 0
346 : s->purpose = ctx->purpose;
347 : s->trust = ctx->trust;
348 : #endif
349 746 : s->quiet_shutdown = ctx->quiet_shutdown;
350 746 : s->max_send_fragment = ctx->max_send_fragment;
351 :
352 746 : CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
353 750 : s->ctx = ctx;
354 : #ifndef OPENSSL_NO_TLSEXT
355 750 : s->tlsext_debug_cb = 0;
356 750 : s->tlsext_debug_arg = NULL;
357 750 : s->tlsext_ticket_expected = 0;
358 750 : s->tlsext_status_type = -1;
359 750 : s->tlsext_status_expected = 0;
360 750 : s->tlsext_ocsp_ids = NULL;
361 750 : s->tlsext_ocsp_exts = NULL;
362 750 : s->tlsext_ocsp_resp = NULL;
363 750 : s->tlsext_ocsp_resplen = -1;
364 750 : CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
365 750 : s->initial_ctx = ctx;
366 : # ifndef OPENSSL_NO_EC
367 750 : if (ctx->tlsext_ecpointformatlist) {
368 0 : s->tlsext_ecpointformatlist =
369 0 : BUF_memdup(ctx->tlsext_ecpointformatlist,
370 : ctx->tlsext_ecpointformatlist_length);
371 0 : if (!s->tlsext_ecpointformatlist)
372 : goto err;
373 0 : s->tlsext_ecpointformatlist_length =
374 0 : ctx->tlsext_ecpointformatlist_length;
375 : }
376 750 : if (ctx->tlsext_ellipticcurvelist) {
377 0 : s->tlsext_ellipticcurvelist =
378 0 : BUF_memdup(ctx->tlsext_ellipticcurvelist,
379 : ctx->tlsext_ellipticcurvelist_length);
380 0 : if (!s->tlsext_ellipticcurvelist)
381 : goto err;
382 0 : s->tlsext_ellipticcurvelist_length =
383 0 : ctx->tlsext_ellipticcurvelist_length;
384 : }
385 : # endif
386 : # ifndef OPENSSL_NO_NEXTPROTONEG
387 750 : s->next_proto_negotiated = NULL;
388 : # endif
389 :
390 750 : if (s->ctx->alpn_client_proto_list) {
391 373 : s->alpn_client_proto_list =
392 373 : OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);
393 373 : if (s->alpn_client_proto_list == NULL)
394 : goto err;
395 373 : memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,
396 373 : s->ctx->alpn_client_proto_list_len);
397 373 : s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;
398 : }
399 : #endif
400 :
401 750 : s->verify_result = X509_V_OK;
402 :
403 750 : s->method = ctx->method;
404 :
405 750 : if (!s->method->ssl_new(s))
406 : goto err;
407 :
408 749 : s->references = 1;
409 749 : s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;
410 :
411 749 : SSL_clear(s);
412 :
413 750 : CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
414 :
415 : #ifndef OPENSSL_NO_PSK
416 750 : s->psk_client_callback = ctx->psk_client_callback;
417 750 : s->psk_server_callback = ctx->psk_server_callback;
418 : #endif
419 :
420 750 : return (s);
421 : err:
422 0 : if (s != NULL)
423 0 : SSL_free(s);
424 0 : SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
425 0 : return (NULL);
426 : }
427 :
428 0 : int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
429 : unsigned int sid_ctx_len)
430 : {
431 0 : if (sid_ctx_len > sizeof ctx->sid_ctx) {
432 0 : SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,
433 : SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
434 0 : return 0;
435 : }
436 0 : ctx->sid_ctx_length = sid_ctx_len;
437 0 : memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
438 :
439 0 : return 1;
440 : }
441 :
442 0 : int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
443 : unsigned int sid_ctx_len)
444 : {
445 0 : if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
446 0 : SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,
447 : SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
448 0 : return 0;
449 : }
450 0 : ssl->sid_ctx_length = sid_ctx_len;
451 0 : memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len);
452 :
453 0 : return 1;
454 : }
455 :
456 0 : int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
457 : {
458 0 : CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
459 0 : ctx->generate_session_id = cb;
460 0 : CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
461 0 : return 1;
462 : }
463 :
464 0 : int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
465 : {
466 0 : CRYPTO_w_lock(CRYPTO_LOCK_SSL);
467 0 : ssl->generate_session_id = cb;
468 0 : CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
469 0 : return 1;
470 : }
471 :
472 0 : int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
473 : unsigned int id_len)
474 : {
475 : /*
476 : * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
477 : * we can "construct" a session to give us the desired check - ie. to
478 : * find if there's a session in the hash table that would conflict with
479 : * any new session built out of this id/id_len and the ssl_version in use
480 : * by this SSL.
481 : */
482 : SSL_SESSION r, *p;
483 :
484 0 : if (id_len > sizeof r.session_id)
485 : return 0;
486 :
487 0 : r.ssl_version = ssl->version;
488 0 : r.session_id_length = id_len;
489 0 : memcpy(r.session_id, id, id_len);
490 : /*
491 : * NB: SSLv2 always uses a fixed 16-byte session ID, so even if a
492 : * callback is calling us to check the uniqueness of a shorter ID, it
493 : * must be compared as a padded-out ID because that is what it will be
494 : * converted to when the callback has finished choosing it.
495 : */
496 0 : if ((r.ssl_version == SSL2_VERSION) &&
497 : (id_len < SSL2_SSL_SESSION_ID_LENGTH)) {
498 0 : memset(r.session_id + id_len, 0, SSL2_SSL_SESSION_ID_LENGTH - id_len);
499 0 : r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH;
500 : }
501 :
502 0 : CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
503 0 : p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
504 0 : CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
505 0 : return (p != NULL);
506 : }
507 :
508 0 : int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
509 : {
510 0 : return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
511 : }
512 :
513 0 : int SSL_set_purpose(SSL *s, int purpose)
514 : {
515 0 : return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
516 : }
517 :
518 0 : int SSL_CTX_set_trust(SSL_CTX *s, int trust)
519 : {
520 0 : return X509_VERIFY_PARAM_set_trust(s->param, trust);
521 : }
522 :
523 0 : int SSL_set_trust(SSL *s, int trust)
524 : {
525 0 : return X509_VERIFY_PARAM_set_trust(s->param, trust);
526 : }
527 :
528 0 : int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
529 : {
530 0 : return X509_VERIFY_PARAM_set1(ctx->param, vpm);
531 : }
532 :
533 0 : int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
534 : {
535 0 : return X509_VERIFY_PARAM_set1(ssl->param, vpm);
536 : }
537 :
538 0 : X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
539 : {
540 0 : return ctx->param;
541 : }
542 :
543 0 : X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
544 : {
545 0 : return ssl->param;
546 : }
547 :
548 0 : void SSL_certs_clear(SSL *s)
549 : {
550 0 : ssl_cert_clear_certs(s->cert);
551 0 : }
552 :
553 1482 : void SSL_free(SSL *s)
554 : {
555 : int i;
556 :
557 1482 : if (s == NULL)
558 : return;
559 :
560 750 : i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL);
561 : #ifdef REF_PRINT
562 : REF_PRINT("SSL", s);
563 : #endif
564 750 : if (i > 0)
565 : return;
566 : #ifdef REF_CHECK
567 : if (i < 0) {
568 : fprintf(stderr, "SSL_free, bad reference count\n");
569 : abort(); /* ok */
570 : }
571 : #endif
572 :
573 750 : if (s->param)
574 750 : X509_VERIFY_PARAM_free(s->param);
575 :
576 750 : CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
577 :
578 750 : if (s->bbio != NULL) {
579 : /* If the buffering BIO is in place, pop it off */
580 14 : if (s->bbio == s->wbio) {
581 14 : s->wbio = BIO_pop(s->wbio);
582 : }
583 14 : BIO_free(s->bbio);
584 14 : s->bbio = NULL;
585 : }
586 750 : if (s->rbio != NULL)
587 750 : BIO_free_all(s->rbio);
588 750 : if ((s->wbio != NULL) && (s->wbio != s->rbio))
589 750 : BIO_free_all(s->wbio);
590 :
591 750 : if (s->init_buf != NULL)
592 14 : BUF_MEM_free(s->init_buf);
593 :
594 : /* add extra stuff */
595 750 : if (s->cipher_list != NULL)
596 0 : sk_SSL_CIPHER_free(s->cipher_list);
597 750 : if (s->cipher_list_by_id != NULL)
598 0 : sk_SSL_CIPHER_free(s->cipher_list_by_id);
599 :
600 : /* Make the next call work :-) */
601 750 : if (s->session != NULL) {
602 746 : ssl_clear_bad_session(s);
603 746 : SSL_SESSION_free(s->session);
604 : }
605 :
606 750 : ssl_clear_cipher_ctx(s);
607 : ssl_clear_hash_ctx(&s->read_hash);
608 : ssl_clear_hash_ctx(&s->write_hash);
609 :
610 750 : if (s->cert != NULL)
611 750 : ssl_cert_free(s->cert);
612 : /* Free up if allocated */
613 :
614 : #ifndef OPENSSL_NO_TLSEXT
615 750 : if (s->tlsext_hostname)
616 373 : OPENSSL_free(s->tlsext_hostname);
617 750 : if (s->initial_ctx)
618 750 : SSL_CTX_free(s->initial_ctx);
619 : # ifndef OPENSSL_NO_EC
620 750 : if (s->tlsext_ecpointformatlist)
621 0 : OPENSSL_free(s->tlsext_ecpointformatlist);
622 750 : if (s->tlsext_ellipticcurvelist)
623 0 : OPENSSL_free(s->tlsext_ellipticcurvelist);
624 : # endif /* OPENSSL_NO_EC */
625 750 : if (s->tlsext_opaque_prf_input)
626 0 : OPENSSL_free(s->tlsext_opaque_prf_input);
627 750 : if (s->tlsext_ocsp_exts)
628 0 : sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free);
629 750 : if (s->tlsext_ocsp_ids)
630 0 : sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
631 750 : if (s->tlsext_ocsp_resp)
632 0 : OPENSSL_free(s->tlsext_ocsp_resp);
633 750 : if (s->alpn_client_proto_list)
634 373 : OPENSSL_free(s->alpn_client_proto_list);
635 : #endif
636 :
637 750 : if (s->client_CA != NULL)
638 0 : sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free);
639 :
640 750 : if (s->method != NULL)
641 750 : s->method->ssl_free(s);
642 :
643 750 : if (s->ctx)
644 750 : SSL_CTX_free(s->ctx);
645 :
646 : #ifndef OPENSSL_NO_KRB5
647 : if (s->kssl_ctx != NULL)
648 : kssl_ctx_free(s->kssl_ctx);
649 : #endif /* OPENSSL_NO_KRB5 */
650 :
651 : #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
652 750 : if (s->next_proto_negotiated)
653 0 : OPENSSL_free(s->next_proto_negotiated);
654 : #endif
655 :
656 : #ifndef OPENSSL_NO_SRTP
657 750 : if (s->srtp_profiles)
658 0 : sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
659 : #endif
660 :
661 750 : OPENSSL_free(s);
662 : }
663 :
664 750 : void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
665 : {
666 : /*
667 : * If the output buffering BIO is still in place, remove it
668 : */
669 750 : if (s->bbio != NULL) {
670 0 : if (s->wbio == s->bbio) {
671 0 : s->wbio = s->wbio->next_bio;
672 0 : s->bbio->next_bio = NULL;
673 : }
674 : }
675 750 : if ((s->rbio != NULL) && (s->rbio != rbio))
676 0 : BIO_free_all(s->rbio);
677 750 : if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
678 0 : BIO_free_all(s->wbio);
679 750 : s->rbio = rbio;
680 750 : s->wbio = wbio;
681 750 : }
682 :
683 0 : BIO *SSL_get_rbio(const SSL *s)
684 : {
685 15128 : return (s->rbio);
686 : }
687 :
688 0 : BIO *SSL_get_wbio(const SSL *s)
689 : {
690 0 : return (s->wbio);
691 : }
692 :
693 0 : int SSL_get_fd(const SSL *s)
694 : {
695 0 : return (SSL_get_rfd(s));
696 : }
697 :
698 0 : int SSL_get_rfd(const SSL *s)
699 : {
700 0 : int ret = -1;
701 : BIO *b, *r;
702 :
703 : b = SSL_get_rbio(s);
704 0 : r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
705 0 : if (r != NULL)
706 0 : BIO_get_fd(r, &ret);
707 0 : return (ret);
708 : }
709 :
710 0 : int SSL_get_wfd(const SSL *s)
711 : {
712 0 : int ret = -1;
713 : BIO *b, *r;
714 :
715 : b = SSL_get_wbio(s);
716 0 : r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
717 0 : if (r != NULL)
718 0 : BIO_get_fd(r, &ret);
719 0 : return (ret);
720 : }
721 :
722 : #ifndef OPENSSL_NO_SOCK
723 0 : int SSL_set_fd(SSL *s, int fd)
724 : {
725 : int ret = 0;
726 : BIO *bio = NULL;
727 :
728 0 : bio = BIO_new(BIO_s_socket());
729 :
730 0 : if (bio == NULL) {
731 0 : SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB);
732 0 : goto err;
733 : }
734 0 : BIO_set_fd(bio, fd, BIO_NOCLOSE);
735 0 : SSL_set_bio(s, bio, bio);
736 : ret = 1;
737 : err:
738 0 : return (ret);
739 : }
740 :
741 0 : int SSL_set_wfd(SSL *s, int fd)
742 : {
743 : int ret = 0;
744 : BIO *bio = NULL;
745 :
746 0 : if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
747 0 : || ((int)BIO_get_fd(s->rbio, NULL) != fd)) {
748 0 : bio = BIO_new(BIO_s_socket());
749 :
750 0 : if (bio == NULL) {
751 0 : SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB);
752 0 : goto err;
753 : }
754 0 : BIO_set_fd(bio, fd, BIO_NOCLOSE);
755 0 : SSL_set_bio(s, SSL_get_rbio(s), bio);
756 : } else
757 0 : SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s));
758 : ret = 1;
759 : err:
760 0 : return (ret);
761 : }
762 :
763 0 : int SSL_set_rfd(SSL *s, int fd)
764 : {
765 : int ret = 0;
766 : BIO *bio = NULL;
767 :
768 0 : if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
769 0 : || ((int)BIO_get_fd(s->wbio, NULL) != fd)) {
770 0 : bio = BIO_new(BIO_s_socket());
771 :
772 0 : if (bio == NULL) {
773 0 : SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB);
774 0 : goto err;
775 : }
776 0 : BIO_set_fd(bio, fd, BIO_NOCLOSE);
777 0 : SSL_set_bio(s, bio, SSL_get_wbio(s));
778 : } else
779 0 : SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s));
780 : ret = 1;
781 : err:
782 0 : return (ret);
783 : }
784 : #endif
785 :
786 : /* return length of latest Finished message we sent, copy to 'buf' */
787 0 : size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
788 : {
789 : size_t ret = 0;
790 :
791 0 : if (s->s3 != NULL) {
792 0 : ret = s->s3->tmp.finish_md_len;
793 0 : if (count > ret)
794 : count = ret;
795 0 : memcpy(buf, s->s3->tmp.finish_md, count);
796 : }
797 0 : return ret;
798 : }
799 :
800 : /* return length of latest Finished message we expected, copy to 'buf' */
801 0 : size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
802 : {
803 : size_t ret = 0;
804 :
805 0 : if (s->s3 != NULL) {
806 0 : ret = s->s3->tmp.peer_finish_md_len;
807 0 : if (count > ret)
808 : count = ret;
809 0 : memcpy(buf, s->s3->tmp.peer_finish_md, count);
810 : }
811 0 : return ret;
812 : }
813 :
814 0 : int SSL_get_verify_mode(const SSL *s)
815 : {
816 0 : return (s->verify_mode);
817 : }
818 :
819 0 : int SSL_get_verify_depth(const SSL *s)
820 : {
821 0 : return X509_VERIFY_PARAM_get_depth(s->param);
822 : }
823 :
824 0 : int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
825 0 : return (s->verify_callback);
826 : }
827 :
828 0 : int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
829 : {
830 0 : return (ctx->verify_mode);
831 : }
832 :
833 0 : int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
834 : {
835 0 : return X509_VERIFY_PARAM_get_depth(ctx->param);
836 : }
837 :
838 0 : int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
839 0 : return (ctx->default_verify_callback);
840 : }
841 :
842 0 : void SSL_set_verify(SSL *s, int mode,
843 : int (*callback) (int ok, X509_STORE_CTX *ctx))
844 : {
845 0 : s->verify_mode = mode;
846 0 : if (callback != NULL)
847 0 : s->verify_callback = callback;
848 0 : }
849 :
850 0 : void SSL_set_verify_depth(SSL *s, int depth)
851 : {
852 0 : X509_VERIFY_PARAM_set_depth(s->param, depth);
853 0 : }
854 :
855 0 : void SSL_set_read_ahead(SSL *s, int yes)
856 : {
857 0 : s->read_ahead = yes;
858 0 : }
859 :
860 0 : int SSL_get_read_ahead(const SSL *s)
861 : {
862 0 : return (s->read_ahead);
863 : }
864 :
865 0 : int SSL_pending(const SSL *s)
866 : {
867 : /*
868 : * SSL_pending cannot work properly if read-ahead is enabled
869 : * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
870 : * impossible to fix since SSL_pending cannot report errors that may be
871 : * observed while scanning the new data. (Note that SSL_pending() is
872 : * often used as a boolean value, so we'd better not return -1.)
873 : */
874 0 : return (s->method->ssl_pending(s));
875 : }
876 :
877 732 : X509 *SSL_get_peer_certificate(const SSL *s)
878 : {
879 : X509 *r;
880 :
881 732 : if ((s == NULL) || (s->session == NULL))
882 : r = NULL;
883 : else
884 732 : r = s->session->peer;
885 :
886 732 : if (r == NULL)
887 : return (r);
888 :
889 365 : CRYPTO_add(&r->references, 1, CRYPTO_LOCK_X509);
890 :
891 365 : return (r);
892 : }
893 :
894 0 : STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
895 : {
896 : STACK_OF(X509) *r;
897 :
898 0 : if ((s == NULL) || (s->session == NULL)
899 0 : || (s->session->sess_cert == NULL))
900 : r = NULL;
901 : else
902 0 : r = s->session->sess_cert->cert_chain;
903 :
904 : /*
905 : * If we are a client, cert_chain includes the peer's own certificate; if
906 : * we are a server, it does not.
907 : */
908 :
909 0 : return (r);
910 : }
911 :
912 : /*
913 : * Now in theory, since the calling process own 't' it should be safe to
914 : * modify. We need to be able to read f without being hassled
915 : */
916 0 : void SSL_copy_session_id(SSL *t, const SSL *f)
917 : {
918 : CERT *tmp;
919 :
920 : /* Do we need to to SSL locking? */
921 0 : SSL_set_session(t, SSL_get_session(f));
922 :
923 : /*
924 : * what if we are setup as SSLv2 but want to talk SSLv3 or vice-versa
925 : */
926 0 : if (t->method != f->method) {
927 0 : t->method->ssl_free(t); /* cleanup current */
928 0 : t->method = f->method; /* change method */
929 0 : t->method->ssl_new(t); /* setup new */
930 : }
931 :
932 0 : tmp = t->cert;
933 0 : if (f->cert != NULL) {
934 0 : CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT);
935 0 : t->cert = f->cert;
936 : } else
937 0 : t->cert = NULL;
938 0 : if (tmp != NULL)
939 0 : ssl_cert_free(tmp);
940 0 : SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length);
941 0 : }
942 :
943 : /* Fix this so it checks all the valid key/cert options */
944 438 : int SSL_CTX_check_private_key(const SSL_CTX *ctx)
945 : {
946 876 : if ((ctx == NULL) ||
947 876 : (ctx->cert == NULL) || (ctx->cert->key->x509 == NULL)) {
948 0 : SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
949 : SSL_R_NO_CERTIFICATE_ASSIGNED);
950 0 : return (0);
951 : }
952 438 : if (ctx->cert->key->privatekey == NULL) {
953 0 : SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
954 : SSL_R_NO_PRIVATE_KEY_ASSIGNED);
955 0 : return (0);
956 : }
957 438 : return (X509_check_private_key
958 : (ctx->cert->key->x509, ctx->cert->key->privatekey));
959 : }
960 :
961 : /* Fix this function so that it takes an optional type parameter */
962 0 : int SSL_check_private_key(const SSL *ssl)
963 : {
964 0 : if (ssl == NULL) {
965 0 : SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
966 0 : return (0);
967 : }
968 0 : if (ssl->cert == NULL) {
969 0 : SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
970 0 : return 0;
971 : }
972 0 : if (ssl->cert->key->x509 == NULL) {
973 0 : SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
974 0 : return (0);
975 : }
976 0 : if (ssl->cert->key->privatekey == NULL) {
977 0 : SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
978 0 : return (0);
979 : }
980 0 : return (X509_check_private_key(ssl->cert->key->x509,
981 : ssl->cert->key->privatekey));
982 : }
983 :
984 0 : int SSL_accept(SSL *s)
985 : {
986 0 : if (s->handshake_func == 0)
987 : /* Not properly initialized yet */
988 0 : SSL_set_accept_state(s);
989 :
990 0 : return (s->method->ssl_accept(s));
991 : }
992 :
993 0 : int SSL_connect(SSL *s)
994 : {
995 0 : if (s->handshake_func == 0)
996 : /* Not properly initialized yet */
997 0 : SSL_set_connect_state(s);
998 :
999 0 : return (s->method->ssl_connect(s));
1000 : }
1001 :
1002 0 : long SSL_get_default_timeout(const SSL *s)
1003 : {
1004 0 : return (s->method->get_timeout());
1005 : }
1006 :
1007 20659 : int SSL_read(SSL *s, void *buf, int num)
1008 : {
1009 20659 : if (s->handshake_func == 0) {
1010 0 : SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
1011 0 : return -1;
1012 : }
1013 :
1014 20659 : if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
1015 0 : s->rwstate = SSL_NOTHING;
1016 0 : return (0);
1017 : }
1018 20659 : return (s->method->ssl_read(s, buf, num));
1019 : }
1020 :
1021 0 : int SSL_peek(SSL *s, void *buf, int num)
1022 : {
1023 0 : if (s->handshake_func == 0) {
1024 0 : SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
1025 0 : return -1;
1026 : }
1027 :
1028 0 : if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
1029 : return (0);
1030 : }
1031 0 : return (s->method->ssl_peek(s, buf, num));
1032 : }
1033 :
1034 5626 : int SSL_write(SSL *s, const void *buf, int num)
1035 : {
1036 5626 : if (s->handshake_func == 0) {
1037 0 : SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
1038 0 : return -1;
1039 : }
1040 :
1041 5626 : if (s->shutdown & SSL_SENT_SHUTDOWN) {
1042 0 : s->rwstate = SSL_NOTHING;
1043 0 : SSLerr(SSL_F_SSL_WRITE, SSL_R_PROTOCOL_IS_SHUTDOWN);
1044 0 : return (-1);
1045 : }
1046 5626 : return (s->method->ssl_write(s, buf, num));
1047 : }
1048 :
1049 0 : int SSL_shutdown(SSL *s)
1050 : {
1051 : /*
1052 : * Note that this function behaves differently from what one might
1053 : * expect. Return values are 0 for no success (yet), 1 for success; but
1054 : * calling it once is usually not enough, even if blocking I/O is used
1055 : * (see ssl3_shutdown).
1056 : */
1057 :
1058 0 : if (s->handshake_func == 0) {
1059 0 : SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
1060 0 : return -1;
1061 : }
1062 :
1063 0 : if ((s != NULL) && !SSL_in_init(s))
1064 0 : return (s->method->ssl_shutdown(s));
1065 : else
1066 : return (1);
1067 : }
1068 :
1069 0 : int SSL_renegotiate(SSL *s)
1070 : {
1071 0 : if (s->renegotiate == 0)
1072 0 : s->renegotiate = 1;
1073 :
1074 0 : s->new_session = 1;
1075 :
1076 0 : return (s->method->ssl_renegotiate(s));
1077 : }
1078 :
1079 0 : int SSL_renegotiate_abbreviated(SSL *s)
1080 : {
1081 0 : if (s->renegotiate == 0)
1082 0 : s->renegotiate = 1;
1083 :
1084 0 : s->new_session = 0;
1085 :
1086 0 : return (s->method->ssl_renegotiate(s));
1087 : }
1088 :
1089 0 : int SSL_renegotiate_pending(SSL *s)
1090 : {
1091 : /*
1092 : * becomes true when negotiation is requested; false again once a
1093 : * handshake has finished
1094 : */
1095 0 : return (s->renegotiate != 0);
1096 : }
1097 :
1098 2235 : long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
1099 : {
1100 : long l;
1101 :
1102 2235 : switch (cmd) {
1103 : case SSL_CTRL_GET_READ_AHEAD:
1104 0 : return (s->read_ahead);
1105 : case SSL_CTRL_SET_READ_AHEAD:
1106 0 : l = s->read_ahead;
1107 0 : s->read_ahead = larg;
1108 0 : return (l);
1109 :
1110 : case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1111 0 : s->msg_callback_arg = parg;
1112 0 : return 1;
1113 :
1114 : case SSL_CTRL_OPTIONS:
1115 1862 : return (s->options |= larg);
1116 : case SSL_CTRL_CLEAR_OPTIONS:
1117 0 : return (s->options &= ~larg);
1118 : case SSL_CTRL_MODE:
1119 0 : return (s->mode |= larg);
1120 : case SSL_CTRL_CLEAR_MODE:
1121 0 : return (s->mode &= ~larg);
1122 : case SSL_CTRL_GET_MAX_CERT_LIST:
1123 0 : return (s->max_cert_list);
1124 : case SSL_CTRL_SET_MAX_CERT_LIST:
1125 0 : l = s->max_cert_list;
1126 0 : s->max_cert_list = larg;
1127 0 : return (l);
1128 : case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1129 0 : if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1130 : return 0;
1131 0 : s->max_send_fragment = larg;
1132 0 : return 1;
1133 : case SSL_CTRL_GET_RI_SUPPORT:
1134 0 : if (s->s3)
1135 0 : return s->s3->send_connection_binding;
1136 : else
1137 : return 0;
1138 : case SSL_CTRL_CERT_FLAGS:
1139 0 : return (s->cert->cert_flags |= larg);
1140 : case SSL_CTRL_CLEAR_CERT_FLAGS:
1141 0 : return (s->cert->cert_flags &= ~larg);
1142 :
1143 : case SSL_CTRL_GET_RAW_CIPHERLIST:
1144 0 : if (parg) {
1145 0 : if (s->cert->ciphers_raw == NULL)
1146 : return 0;
1147 0 : *(unsigned char **)parg = s->cert->ciphers_raw;
1148 0 : return (int)s->cert->ciphers_rawlen;
1149 : } else
1150 0 : return ssl_put_cipher_by_char(s, NULL, NULL);
1151 : default:
1152 373 : return (s->method->ssl_ctrl(s, cmd, larg, parg));
1153 : }
1154 : }
1155 :
1156 0 : long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
1157 : {
1158 0 : switch (cmd) {
1159 : case SSL_CTRL_SET_MSG_CALLBACK:
1160 0 : s->msg_callback = (void (*)
1161 : (int write_p, int version, int content_type,
1162 : const void *buf, size_t len, SSL *ssl,
1163 : void *arg))(fp);
1164 0 : return 1;
1165 :
1166 : default:
1167 0 : return (s->method->ssl_callback_ctrl(s, cmd, fp));
1168 : }
1169 : }
1170 :
1171 0 : LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1172 : {
1173 0 : return ctx->sessions;
1174 : }
1175 :
1176 2182 : long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
1177 : {
1178 : long l;
1179 : /* For some cases with ctx == NULL perform syntax checks */
1180 2182 : if (ctx == NULL) {
1181 0 : switch (cmd) {
1182 : #ifndef OPENSSL_NO_EC
1183 : case SSL_CTRL_SET_CURVES_LIST:
1184 0 : return tls1_set_curves_list(NULL, NULL, parg);
1185 : #endif
1186 : case SSL_CTRL_SET_SIGALGS_LIST:
1187 : case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
1188 0 : return tls1_set_sigalgs_list(NULL, parg, 0);
1189 : default:
1190 : return 0;
1191 : }
1192 : }
1193 :
1194 2182 : switch (cmd) {
1195 : case SSL_CTRL_GET_READ_AHEAD:
1196 0 : return (ctx->read_ahead);
1197 : case SSL_CTRL_SET_READ_AHEAD:
1198 0 : l = ctx->read_ahead;
1199 0 : ctx->read_ahead = larg;
1200 0 : return (l);
1201 :
1202 : case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1203 0 : ctx->msg_callback_arg = parg;
1204 0 : return 1;
1205 :
1206 : case SSL_CTRL_GET_MAX_CERT_LIST:
1207 0 : return (ctx->max_cert_list);
1208 : case SSL_CTRL_SET_MAX_CERT_LIST:
1209 0 : l = ctx->max_cert_list;
1210 0 : ctx->max_cert_list = larg;
1211 0 : return (l);
1212 :
1213 : case SSL_CTRL_SET_SESS_CACHE_SIZE:
1214 0 : l = ctx->session_cache_size;
1215 0 : ctx->session_cache_size = larg;
1216 0 : return (l);
1217 : case SSL_CTRL_GET_SESS_CACHE_SIZE:
1218 0 : return (ctx->session_cache_size);
1219 : case SSL_CTRL_SET_SESS_CACHE_MODE:
1220 0 : l = ctx->session_cache_mode;
1221 0 : ctx->session_cache_mode = larg;
1222 0 : return (l);
1223 : case SSL_CTRL_GET_SESS_CACHE_MODE:
1224 0 : return (ctx->session_cache_mode);
1225 :
1226 : case SSL_CTRL_SESS_NUMBER:
1227 0 : return (lh_SSL_SESSION_num_items(ctx->sessions));
1228 : case SSL_CTRL_SESS_CONNECT:
1229 0 : return (ctx->stats.sess_connect);
1230 : case SSL_CTRL_SESS_CONNECT_GOOD:
1231 0 : return (ctx->stats.sess_connect_good);
1232 : case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1233 0 : return (ctx->stats.sess_connect_renegotiate);
1234 : case SSL_CTRL_SESS_ACCEPT:
1235 0 : return (ctx->stats.sess_accept);
1236 : case SSL_CTRL_SESS_ACCEPT_GOOD:
1237 0 : return (ctx->stats.sess_accept_good);
1238 : case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1239 0 : return (ctx->stats.sess_accept_renegotiate);
1240 : case SSL_CTRL_SESS_HIT:
1241 0 : return (ctx->stats.sess_hit);
1242 : case SSL_CTRL_SESS_CB_HIT:
1243 0 : return (ctx->stats.sess_cb_hit);
1244 : case SSL_CTRL_SESS_MISSES:
1245 0 : return (ctx->stats.sess_miss);
1246 : case SSL_CTRL_SESS_TIMEOUTS:
1247 0 : return (ctx->stats.sess_timeout);
1248 : case SSL_CTRL_SESS_CACHE_FULL:
1249 0 : return (ctx->stats.sess_cache_full);
1250 : case SSL_CTRL_OPTIONS:
1251 872 : return (ctx->options |= larg);
1252 : case SSL_CTRL_CLEAR_OPTIONS:
1253 0 : return (ctx->options &= ~larg);
1254 : case SSL_CTRL_MODE:
1255 0 : return (ctx->mode |= larg);
1256 : case SSL_CTRL_CLEAR_MODE:
1257 0 : return (ctx->mode &= ~larg);
1258 : case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1259 0 : if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1260 : return 0;
1261 0 : ctx->max_send_fragment = larg;
1262 0 : return 1;
1263 : case SSL_CTRL_CERT_FLAGS:
1264 0 : return (ctx->cert->cert_flags |= larg);
1265 : case SSL_CTRL_CLEAR_CERT_FLAGS:
1266 0 : return (ctx->cert->cert_flags &= ~larg);
1267 : default:
1268 1310 : return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg));
1269 : }
1270 : }
1271 :
1272 438 : long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
1273 : {
1274 438 : switch (cmd) {
1275 : case SSL_CTRL_SET_MSG_CALLBACK:
1276 0 : ctx->msg_callback = (void (*)
1277 : (int write_p, int version, int content_type,
1278 : const void *buf, size_t len, SSL *ssl,
1279 : void *arg))(fp);
1280 0 : return 1;
1281 :
1282 : default:
1283 438 : return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp));
1284 : }
1285 : }
1286 :
1287 0 : int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1288 : {
1289 : long l;
1290 :
1291 10802 : l = a->id - b->id;
1292 10802 : if (l == 0L)
1293 : return (0);
1294 : else
1295 8940 : return ((l > 0) ? 1 : -1);
1296 : }
1297 :
1298 449820 : int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
1299 : const SSL_CIPHER *const *bp)
1300 : {
1301 : long l;
1302 :
1303 449820 : l = (*ap)->id - (*bp)->id;
1304 449820 : if (l == 0L)
1305 : return (0);
1306 : else
1307 449450 : return ((l > 0) ? 1 : -1);
1308 : }
1309 :
1310 : /** return a STACK of the ciphers available for the SSL and in order of
1311 : * preference */
1312 1119 : STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1313 : {
1314 1119 : if (s != NULL) {
1315 1119 : if (s->cipher_list != NULL) {
1316 : return (s->cipher_list);
1317 1119 : } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
1318 1119 : return (s->ctx->cipher_list);
1319 : }
1320 : }
1321 : return (NULL);
1322 : }
1323 :
1324 : /** return a STACK of the ciphers available for the SSL and in order of
1325 : * algorithm id */
1326 370 : STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1327 : {
1328 370 : if (s != NULL) {
1329 370 : if (s->cipher_list_by_id != NULL) {
1330 : return (s->cipher_list_by_id);
1331 370 : } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) {
1332 370 : return (s->ctx->cipher_list_by_id);
1333 : }
1334 : }
1335 : return (NULL);
1336 : }
1337 :
1338 : /** The old interface to get the same thing as SSL_get_ciphers() */
1339 0 : const char *SSL_get_cipher_list(const SSL *s, int n)
1340 : {
1341 : SSL_CIPHER *c;
1342 : STACK_OF(SSL_CIPHER) *sk;
1343 :
1344 0 : if (s == NULL)
1345 : return (NULL);
1346 : sk = SSL_get_ciphers(s);
1347 0 : if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1348 : return (NULL);
1349 0 : c = sk_SSL_CIPHER_value(sk, n);
1350 0 : if (c == NULL)
1351 : return (NULL);
1352 0 : return (c->name);
1353 : }
1354 :
1355 : /** specify the ciphers to be used by default by the SSL_CTX */
1356 872 : int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1357 : {
1358 : STACK_OF(SSL_CIPHER) *sk;
1359 :
1360 872 : sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list,
1361 872 : &ctx->cipher_list_by_id, str, ctx->cert);
1362 : /*
1363 : * ssl_create_cipher_list may return an empty stack if it was unable to
1364 : * find a cipher matching the given rule string (for example if the rule
1365 : * string specifies a cipher which has been disabled). This is not an
1366 : * error as far as ssl_create_cipher_list is concerned, and hence
1367 : * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
1368 : */
1369 872 : if (sk == NULL)
1370 : return 0;
1371 872 : else if (sk_SSL_CIPHER_num(sk) == 0) {
1372 0 : SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1373 0 : return 0;
1374 : }
1375 : return 1;
1376 : }
1377 :
1378 : /** specify the ciphers to be used by the SSL */
1379 0 : int SSL_set_cipher_list(SSL *s, const char *str)
1380 : {
1381 : STACK_OF(SSL_CIPHER) *sk;
1382 :
1383 0 : sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list,
1384 0 : &s->cipher_list_by_id, str, s->cert);
1385 : /* see comment in SSL_CTX_set_cipher_list */
1386 0 : if (sk == NULL)
1387 : return 0;
1388 0 : else if (sk_SSL_CIPHER_num(sk) == 0) {
1389 0 : SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1390 0 : return 0;
1391 : }
1392 : return 1;
1393 : }
1394 :
1395 : /* works well for SSLv2, not so good for SSLv3 */
1396 0 : char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len)
1397 : {
1398 : char *p;
1399 : STACK_OF(SSL_CIPHER) *sk;
1400 : SSL_CIPHER *c;
1401 : int i;
1402 :
1403 0 : if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2))
1404 : return (NULL);
1405 :
1406 : p = buf;
1407 : sk = s->session->ciphers;
1408 :
1409 0 : if (sk_SSL_CIPHER_num(sk) == 0)
1410 : return NULL;
1411 :
1412 0 : for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
1413 : int n;
1414 :
1415 0 : c = sk_SSL_CIPHER_value(sk, i);
1416 0 : n = strlen(c->name);
1417 0 : if (n + 1 > len) {
1418 0 : if (p != buf)
1419 0 : --p;
1420 0 : *p = '\0';
1421 0 : return buf;
1422 : }
1423 : strcpy(p, c->name);
1424 0 : p += n;
1425 0 : *(p++) = ':';
1426 0 : len -= n + 1;
1427 : }
1428 0 : p[-1] = '\0';
1429 0 : return (buf);
1430 : }
1431 :
1432 373 : int ssl_cipher_list_to_bytes(SSL *s, STACK_OF(SSL_CIPHER) *sk,
1433 : unsigned char *p,
1434 : int (*put_cb) (const SSL_CIPHER *,
1435 : unsigned char *))
1436 : {
1437 : int i, j = 0;
1438 : SSL_CIPHER *c;
1439 373 : CERT *ct = s->cert;
1440 : unsigned char *q;
1441 373 : int empty_reneg_info_scsv = !s->renegotiate;
1442 : /* Set disabled masks for this session */
1443 373 : ssl_set_client_disabled(s);
1444 :
1445 373 : if (sk == NULL)
1446 : return (0);
1447 : q = p;
1448 373 : if (put_cb == NULL)
1449 373 : put_cb = s->method->put_cipher_by_char;
1450 :
1451 1865 : for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
1452 1492 : c = sk_SSL_CIPHER_value(sk, i);
1453 : /* Skip disabled ciphers */
1454 2984 : if (c->algorithm_ssl & ct->mask_ssl ||
1455 2984 : c->algorithm_mkey & ct->mask_k || c->algorithm_auth & ct->mask_a)
1456 0 : continue;
1457 : #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
1458 : if (c->id == SSL3_CK_SCSV) {
1459 : if (!empty_reneg_info_scsv)
1460 : continue;
1461 : else
1462 : empty_reneg_info_scsv = 0;
1463 : }
1464 : #endif
1465 1492 : j = put_cb(c, p);
1466 1492 : p += j;
1467 : }
1468 : /*
1469 : * If p == q, no ciphers; caller indicates an error. Otherwise, add
1470 : * applicable SCSVs.
1471 : */
1472 373 : if (p != q) {
1473 373 : if (empty_reneg_info_scsv) {
1474 : static SSL_CIPHER scsv = {
1475 : 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
1476 : };
1477 373 : j = put_cb(&scsv, p);
1478 373 : p += j;
1479 : #ifdef OPENSSL_RI_DEBUG
1480 : fprintf(stderr,
1481 : "TLS_EMPTY_RENEGOTIATION_INFO_SCSV sent by client\n");
1482 : #endif
1483 : }
1484 373 : if (s->mode & SSL_MODE_SEND_FALLBACK_SCSV) {
1485 : static SSL_CIPHER scsv = {
1486 : 0, NULL, SSL3_CK_FALLBACK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
1487 : };
1488 0 : j = put_cb(&scsv, p);
1489 0 : p += j;
1490 : }
1491 : }
1492 :
1493 373 : return (p - q);
1494 : }
1495 :
1496 373 : STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s, unsigned char *p,
1497 : int num,
1498 : STACK_OF(SSL_CIPHER) **skp)
1499 : {
1500 : const SSL_CIPHER *c;
1501 : STACK_OF(SSL_CIPHER) *sk;
1502 : int i, n;
1503 :
1504 373 : if (s->s3)
1505 373 : s->s3->send_connection_binding = 0;
1506 :
1507 373 : n = ssl_put_cipher_by_char(s, NULL, NULL);
1508 373 : if (n == 0 || (num % n) != 0) {
1509 0 : SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,
1510 : SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1511 0 : return (NULL);
1512 : }
1513 373 : if ((skp == NULL) || (*skp == NULL)) {
1514 373 : sk = sk_SSL_CIPHER_new_null(); /* change perhaps later */
1515 373 : if(sk == NULL) {
1516 0 : SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
1517 0 : return NULL;
1518 : }
1519 : } else {
1520 : sk = *skp;
1521 0 : sk_SSL_CIPHER_zero(sk);
1522 : }
1523 :
1524 373 : if (s->cert->ciphers_raw)
1525 0 : OPENSSL_free(s->cert->ciphers_raw);
1526 373 : s->cert->ciphers_raw = BUF_memdup(p, num);
1527 373 : if (s->cert->ciphers_raw == NULL) {
1528 0 : SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
1529 0 : goto err;
1530 : }
1531 373 : s->cert->ciphers_rawlen = (size_t)num;
1532 :
1533 2238 : for (i = 0; i < num; i += n) {
1534 : /* Check for TLS_EMPTY_RENEGOTIATION_INFO_SCSV */
1535 3730 : if (s->s3 && (n != 3 || !p[0]) &&
1536 2238 : (p[n - 2] == ((SSL3_CK_SCSV >> 8) & 0xff)) &&
1537 373 : (p[n - 1] == (SSL3_CK_SCSV & 0xff))) {
1538 : /* SCSV fatal if renegotiating */
1539 373 : if (s->renegotiate) {
1540 0 : SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,
1541 : SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);
1542 0 : ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE);
1543 0 : goto err;
1544 : }
1545 373 : s->s3->send_connection_binding = 1;
1546 373 : p += n;
1547 : #ifdef OPENSSL_RI_DEBUG
1548 : fprintf(stderr, "SCSV received by server\n");
1549 : #endif
1550 373 : continue;
1551 : }
1552 :
1553 : /* Check for TLS_FALLBACK_SCSV */
1554 2984 : if ((n != 3 || !p[0]) &&
1555 1492 : (p[n - 2] == ((SSL3_CK_FALLBACK_SCSV >> 8) & 0xff)) &&
1556 0 : (p[n - 1] == (SSL3_CK_FALLBACK_SCSV & 0xff))) {
1557 : /*
1558 : * The SCSV indicates that the client previously tried a higher
1559 : * version. Fail if the current version is an unexpected
1560 : * downgrade.
1561 : */
1562 0 : if (!SSL_ctrl(s, SSL_CTRL_CHECK_PROTO_VERSION, 0, NULL)) {
1563 0 : SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,
1564 : SSL_R_INAPPROPRIATE_FALLBACK);
1565 0 : if (s->s3)
1566 0 : ssl3_send_alert(s, SSL3_AL_FATAL,
1567 : SSL_AD_INAPPROPRIATE_FALLBACK);
1568 : goto err;
1569 : }
1570 0 : p += n;
1571 0 : continue;
1572 : }
1573 :
1574 1492 : c = ssl_get_cipher_by_char(s, p);
1575 1492 : p += n;
1576 1492 : if (c != NULL) {
1577 1492 : if (!sk_SSL_CIPHER_push(sk, c)) {
1578 0 : SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
1579 0 : goto err;
1580 : }
1581 : }
1582 : }
1583 :
1584 373 : if (skp != NULL)
1585 373 : *skp = sk;
1586 373 : return (sk);
1587 : err:
1588 0 : if ((skp == NULL) || (*skp == NULL))
1589 0 : sk_SSL_CIPHER_free(sk);
1590 : return (NULL);
1591 : }
1592 :
1593 : #ifndef OPENSSL_NO_TLSEXT
1594 : /** return a servername extension value if provided in Client Hello, or NULL.
1595 : * So far, only host_name types are defined (RFC 3546).
1596 : */
1597 :
1598 373 : const char *SSL_get_servername(const SSL *s, const int type)
1599 : {
1600 373 : if (type != TLSEXT_NAMETYPE_host_name)
1601 : return NULL;
1602 :
1603 1119 : return s->session && !s->tlsext_hostname ?
1604 746 : s->session->tlsext_hostname : s->tlsext_hostname;
1605 : }
1606 :
1607 0 : int SSL_get_servername_type(const SSL *s)
1608 : {
1609 0 : if (s->session
1610 0 : && (!s->tlsext_hostname ? s->session->
1611 : tlsext_hostname : s->tlsext_hostname))
1612 : return TLSEXT_NAMETYPE_host_name;
1613 0 : return -1;
1614 : }
1615 :
1616 : /*
1617 : * SSL_select_next_proto implements the standard protocol selection. It is
1618 : * expected that this function is called from the callback set by
1619 : * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
1620 : * vector of 8-bit, length prefixed byte strings. The length byte itself is
1621 : * not included in the length. A byte string of length 0 is invalid. No byte
1622 : * string may be truncated. The current, but experimental algorithm for
1623 : * selecting the protocol is: 1) If the server doesn't support NPN then this
1624 : * is indicated to the callback. In this case, the client application has to
1625 : * abort the connection or have a default application level protocol. 2) If
1626 : * the server supports NPN, but advertises an empty list then the client
1627 : * selects the first protcol in its list, but indicates via the API that this
1628 : * fallback case was enacted. 3) Otherwise, the client finds the first
1629 : * protocol in the server's list that it supports and selects this protocol.
1630 : * This is because it's assumed that the server has better information about
1631 : * which protocol a client should use. 4) If the client doesn't support any
1632 : * of the server's advertised protocols, then this is treated the same as
1633 : * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
1634 : * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1635 : */
1636 0 : int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
1637 : const unsigned char *server,
1638 : unsigned int server_len,
1639 : const unsigned char *client,
1640 : unsigned int client_len)
1641 : {
1642 : unsigned int i, j;
1643 : const unsigned char *result;
1644 : int status = OPENSSL_NPN_UNSUPPORTED;
1645 :
1646 : /*
1647 : * For each protocol in server preference order, see if we support it.
1648 : */
1649 0 : for (i = 0; i < server_len;) {
1650 0 : for (j = 0; j < client_len;) {
1651 0 : if (server[i] == client[j] &&
1652 0 : memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
1653 : /* We found a match */
1654 : result = &server[i];
1655 : status = OPENSSL_NPN_NEGOTIATED;
1656 : goto found;
1657 : }
1658 0 : j += client[j];
1659 0 : j++;
1660 : }
1661 0 : i += server[i];
1662 0 : i++;
1663 : }
1664 :
1665 : /* There's no overlap between our protocols and the server's list. */
1666 : result = client;
1667 : status = OPENSSL_NPN_NO_OVERLAP;
1668 :
1669 : found:
1670 0 : *out = (unsigned char *)result + 1;
1671 0 : *outlen = result[0];
1672 0 : return status;
1673 : }
1674 :
1675 : # ifndef OPENSSL_NO_NEXTPROTONEG
1676 : /*
1677 : * SSL_get0_next_proto_negotiated sets *data and *len to point to the
1678 : * client's requested protocol for this connection and returns 0. If the
1679 : * client didn't request any protocol, then *data is set to NULL. Note that
1680 : * the client can request any protocol it chooses. The value returned from
1681 : * this function need not be a member of the list of supported protocols
1682 : * provided by the callback.
1683 : */
1684 0 : void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
1685 : unsigned *len)
1686 : {
1687 0 : *data = s->next_proto_negotiated;
1688 0 : if (!*data) {
1689 0 : *len = 0;
1690 : } else {
1691 0 : *len = s->next_proto_negotiated_len;
1692 : }
1693 0 : }
1694 :
1695 : /*
1696 : * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when
1697 : * a TLS server needs a list of supported protocols for Next Protocol
1698 : * Negotiation. The returned list must be in wire format. The list is
1699 : * returned by setting |out| to point to it and |outlen| to its length. This
1700 : * memory will not be modified, but one should assume that the SSL* keeps a
1701 : * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
1702 : * wishes to advertise. Otherwise, no such extension will be included in the
1703 : * ServerHello.
1704 : */
1705 438 : void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx,
1706 : int (*cb) (SSL *ssl,
1707 : const unsigned char
1708 : **out,
1709 : unsigned int *outlen,
1710 : void *arg), void *arg)
1711 : {
1712 438 : ctx->next_protos_advertised_cb = cb;
1713 438 : ctx->next_protos_advertised_cb_arg = arg;
1714 438 : }
1715 :
1716 : /*
1717 : * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1718 : * client needs to select a protocol from the server's provided list. |out|
1719 : * must be set to point to the selected protocol (which may be within |in|).
1720 : * The length of the protocol name must be written into |outlen|. The
1721 : * server's advertised protocols are provided in |in| and |inlen|. The
1722 : * callback can assume that |in| is syntactically valid. The client must
1723 : * select a protocol. It is fatal to the connection if this callback returns
1724 : * a value other than SSL_TLSEXT_ERR_OK.
1725 : */
1726 434 : void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx,
1727 : int (*cb) (SSL *s, unsigned char **out,
1728 : unsigned char *outlen,
1729 : const unsigned char *in,
1730 : unsigned int inlen,
1731 : void *arg), void *arg)
1732 : {
1733 434 : ctx->next_proto_select_cb = cb;
1734 434 : ctx->next_proto_select_cb_arg = arg;
1735 434 : }
1736 : # endif
1737 :
1738 : /*
1739 : * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
1740 : * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1741 : * length-prefixed strings). Returns 0 on success.
1742 : */
1743 434 : int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
1744 : unsigned protos_len)
1745 : {
1746 434 : if (ctx->alpn_client_proto_list)
1747 0 : OPENSSL_free(ctx->alpn_client_proto_list);
1748 :
1749 434 : ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1750 434 : if (!ctx->alpn_client_proto_list)
1751 : return 1;
1752 434 : memcpy(ctx->alpn_client_proto_list, protos, protos_len);
1753 434 : ctx->alpn_client_proto_list_len = protos_len;
1754 :
1755 434 : return 0;
1756 : }
1757 :
1758 : /*
1759 : * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
1760 : * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1761 : * length-prefixed strings). Returns 0 on success.
1762 : */
1763 0 : int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
1764 : unsigned protos_len)
1765 : {
1766 0 : if (ssl->alpn_client_proto_list)
1767 0 : OPENSSL_free(ssl->alpn_client_proto_list);
1768 :
1769 0 : ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1770 0 : if (!ssl->alpn_client_proto_list)
1771 : return 1;
1772 0 : memcpy(ssl->alpn_client_proto_list, protos, protos_len);
1773 0 : ssl->alpn_client_proto_list_len = protos_len;
1774 :
1775 0 : return 0;
1776 : }
1777 :
1778 : /*
1779 : * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
1780 : * called during ClientHello processing in order to select an ALPN protocol
1781 : * from the client's list of offered protocols.
1782 : */
1783 438 : void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
1784 : int (*cb) (SSL *ssl,
1785 : const unsigned char **out,
1786 : unsigned char *outlen,
1787 : const unsigned char *in,
1788 : unsigned int inlen,
1789 : void *arg), void *arg)
1790 : {
1791 438 : ctx->alpn_select_cb = cb;
1792 438 : ctx->alpn_select_cb_arg = arg;
1793 438 : }
1794 :
1795 : /*
1796 : * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from
1797 : * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name
1798 : * (not including the leading length-prefix byte). If the server didn't
1799 : * respond with a negotiated protocol then |*len| will be zero.
1800 : */
1801 732 : void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
1802 : unsigned *len)
1803 : {
1804 732 : *data = NULL;
1805 732 : if (ssl->s3)
1806 732 : *data = ssl->s3->alpn_selected;
1807 732 : if (*data == NULL)
1808 0 : *len = 0;
1809 : else
1810 732 : *len = ssl->s3->alpn_selected_len;
1811 732 : }
1812 :
1813 : #endif /* !OPENSSL_NO_TLSEXT */
1814 :
1815 0 : int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1816 : const char *label, size_t llen,
1817 : const unsigned char *p, size_t plen,
1818 : int use_context)
1819 : {
1820 0 : if (s->version < TLS1_VERSION)
1821 : return -1;
1822 :
1823 0 : return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
1824 : llen, p, plen,
1825 : use_context);
1826 : }
1827 :
1828 : static unsigned long ssl_session_hash(const SSL_SESSION *a)
1829 : {
1830 : unsigned long l;
1831 :
1832 730 : l = (unsigned long)
1833 365 : ((unsigned int)a->session_id[0]) |
1834 730 : ((unsigned int)a->session_id[1] << 8L) |
1835 365 : ((unsigned long)a->session_id[2] << 16L) |
1836 365 : ((unsigned long)a->session_id[3] << 24L);
1837 : return (l);
1838 : }
1839 :
1840 : /*
1841 : * NB: If this function (or indeed the hash function which uses a sort of
1842 : * coarser function than this one) is changed, ensure
1843 : * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
1844 : * being able to construct an SSL_SESSION that will collide with any existing
1845 : * session with a matching session ID.
1846 : */
1847 0 : static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
1848 : {
1849 0 : if (a->ssl_version != b->ssl_version)
1850 : return (1);
1851 0 : if (a->session_id_length != b->session_id_length)
1852 : return (1);
1853 0 : return (memcmp(a->session_id, b->session_id, a->session_id_length));
1854 : }
1855 :
1856 : /*
1857 : * These wrapper functions should remain rather than redeclaring
1858 : * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1859 : * variable. The reason is that the functions aren't static, they're exposed
1860 : * via ssl.h.
1861 : */
1862 730 : static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1863 0 : static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1864 :
1865 872 : SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1866 : {
1867 : SSL_CTX *ret = NULL;
1868 :
1869 872 : if (meth == NULL) {
1870 0 : SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED);
1871 0 : return (NULL);
1872 : }
1873 : #ifdef OPENSSL_FIPS
1874 : if (FIPS_mode() && (meth->version < TLS1_VERSION)) {
1875 : SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1876 : return NULL;
1877 : }
1878 : #endif
1879 :
1880 872 : if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
1881 0 : SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1882 0 : goto err;
1883 : }
1884 872 : ret = (SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1885 872 : if (ret == NULL)
1886 : goto err;
1887 :
1888 : memset(ret, 0, sizeof(SSL_CTX));
1889 :
1890 872 : ret->method = meth;
1891 :
1892 872 : ret->cert_store = NULL;
1893 872 : ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
1894 872 : ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1895 872 : ret->session_cache_head = NULL;
1896 872 : ret->session_cache_tail = NULL;
1897 :
1898 : /* We take the system default */
1899 872 : ret->session_timeout = meth->get_timeout();
1900 :
1901 872 : ret->new_session_cb = 0;
1902 872 : ret->remove_session_cb = 0;
1903 872 : ret->get_session_cb = 0;
1904 872 : ret->generate_session_id = 0;
1905 :
1906 872 : memset((char *)&ret->stats, 0, sizeof(ret->stats));
1907 :
1908 872 : ret->references = 1;
1909 872 : ret->quiet_shutdown = 0;
1910 :
1911 : /* ret->cipher=NULL;*/
1912 : /*-
1913 : ret->s2->challenge=NULL;
1914 : ret->master_key=NULL;
1915 : ret->key_arg=NULL;
1916 : ret->s2->conn_id=NULL; */
1917 :
1918 872 : ret->info_callback = NULL;
1919 :
1920 872 : ret->app_verify_callback = 0;
1921 872 : ret->app_verify_arg = NULL;
1922 :
1923 872 : ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
1924 872 : ret->read_ahead = 0;
1925 872 : ret->msg_callback = 0;
1926 872 : ret->msg_callback_arg = NULL;
1927 872 : ret->verify_mode = SSL_VERIFY_NONE;
1928 : #if 0
1929 : ret->verify_depth = -1; /* Don't impose a limit (but x509_lu.c does) */
1930 : #endif
1931 872 : ret->sid_ctx_length = 0;
1932 872 : ret->default_verify_callback = NULL;
1933 872 : if ((ret->cert = ssl_cert_new()) == NULL)
1934 : goto err;
1935 :
1936 872 : ret->default_passwd_callback = 0;
1937 872 : ret->default_passwd_callback_userdata = NULL;
1938 872 : ret->client_cert_cb = 0;
1939 872 : ret->app_gen_cookie_cb = 0;
1940 872 : ret->app_verify_cookie_cb = 0;
1941 :
1942 872 : ret->sessions = lh_SSL_SESSION_new();
1943 872 : if (ret->sessions == NULL)
1944 : goto err;
1945 872 : ret->cert_store = X509_STORE_new();
1946 872 : if (ret->cert_store == NULL)
1947 : goto err;
1948 :
1949 872 : ssl_create_cipher_list(ret->method,
1950 : &ret->cipher_list, &ret->cipher_list_by_id,
1951 872 : meth->version ==
1952 : SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST,
1953 872 : ret->cert);
1954 872 : if (ret->cipher_list == NULL || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
1955 0 : SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);
1956 0 : goto err2;
1957 : }
1958 :
1959 872 : ret->param = X509_VERIFY_PARAM_new();
1960 872 : if (!ret->param)
1961 : goto err;
1962 :
1963 872 : if ((ret->rsa_md5 = EVP_get_digestbyname("ssl2-md5")) == NULL) {
1964 0 : SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES);
1965 0 : goto err2;
1966 : }
1967 872 : if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {
1968 0 : SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1969 0 : goto err2;
1970 : }
1971 872 : if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) {
1972 0 : SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1973 0 : goto err2;
1974 : }
1975 :
1976 872 : if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL)
1977 : goto err;
1978 :
1979 872 : CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1980 :
1981 872 : ret->extra_certs = NULL;
1982 : /* No compression for DTLS */
1983 872 : if (meth->version != DTLS1_VERSION)
1984 872 : ret->comp_methods = SSL_COMP_get_compression_methods();
1985 :
1986 872 : ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1987 :
1988 : #ifndef OPENSSL_NO_TLSEXT
1989 872 : ret->tlsext_servername_callback = 0;
1990 872 : ret->tlsext_servername_arg = NULL;
1991 : /* Setup RFC4507 ticket keys */
1992 872 : if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1993 872 : || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1994 872 : || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1995 0 : ret->options |= SSL_OP_NO_TICKET;
1996 :
1997 872 : ret->tlsext_status_cb = 0;
1998 872 : ret->tlsext_status_arg = NULL;
1999 :
2000 : # ifndef OPENSSL_NO_NEXTPROTONEG
2001 872 : ret->next_protos_advertised_cb = 0;
2002 872 : ret->next_proto_select_cb = 0;
2003 : # endif
2004 : #endif
2005 : #ifndef OPENSSL_NO_PSK
2006 872 : ret->psk_identity_hint = NULL;
2007 872 : ret->psk_client_callback = NULL;
2008 872 : ret->psk_server_callback = NULL;
2009 : #endif
2010 : #ifndef OPENSSL_NO_SRP
2011 872 : SSL_CTX_SRP_CTX_init(ret);
2012 : #endif
2013 : #ifndef OPENSSL_NO_BUF_FREELISTS
2014 872 : ret->freelist_max_len = SSL_MAX_BUF_FREELIST_LEN_DEFAULT;
2015 872 : ret->rbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
2016 872 : if (!ret->rbuf_freelist)
2017 : goto err;
2018 872 : ret->rbuf_freelist->chunklen = 0;
2019 872 : ret->rbuf_freelist->len = 0;
2020 872 : ret->rbuf_freelist->head = NULL;
2021 872 : ret->wbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST));
2022 872 : if (!ret->wbuf_freelist) {
2023 0 : OPENSSL_free(ret->rbuf_freelist);
2024 0 : goto err;
2025 : }
2026 872 : ret->wbuf_freelist->chunklen = 0;
2027 872 : ret->wbuf_freelist->len = 0;
2028 872 : ret->wbuf_freelist->head = NULL;
2029 : #endif
2030 : #ifndef OPENSSL_NO_ENGINE
2031 872 : ret->client_cert_engine = NULL;
2032 : # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2033 : # define eng_strx(x) #x
2034 : # define eng_str(x) eng_strx(x)
2035 : /* Use specific client engine automatically... ignore errors */
2036 : {
2037 : ENGINE *eng;
2038 : eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2039 : if (!eng) {
2040 : ERR_clear_error();
2041 : ENGINE_load_builtin_engines();
2042 : eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2043 : }
2044 : if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
2045 : ERR_clear_error();
2046 : }
2047 : # endif
2048 : #endif
2049 : /*
2050 : * Default is to connect to non-RI servers. When RI is more widely
2051 : * deployed might change this.
2052 : */
2053 872 : ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
2054 :
2055 872 : return (ret);
2056 : err:
2057 0 : SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
2058 : err2:
2059 0 : if (ret != NULL)
2060 0 : SSL_CTX_free(ret);
2061 : return (NULL);
2062 : }
2063 :
2064 : #if 0
2065 : static void SSL_COMP_free(SSL_COMP *comp)
2066 : {
2067 : OPENSSL_free(comp);
2068 : }
2069 : #endif
2070 :
2071 : #ifndef OPENSSL_NO_BUF_FREELISTS
2072 1744 : static void ssl_buf_freelist_free(SSL3_BUF_FREELIST *list)
2073 : {
2074 : SSL3_BUF_FREELIST_ENTRY *ent, *next;
2075 4828 : for (ent = list->head; ent; ent = next) {
2076 1340 : next = ent->next;
2077 1340 : OPENSSL_free(ent);
2078 : }
2079 1744 : OPENSSL_free(list);
2080 1744 : }
2081 : #endif
2082 :
2083 2372 : void SSL_CTX_free(SSL_CTX *a)
2084 : {
2085 : int i;
2086 :
2087 2372 : if (a == NULL)
2088 : return;
2089 :
2090 2372 : i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_SSL_CTX);
2091 : #ifdef REF_PRINT
2092 : REF_PRINT("SSL_CTX", a);
2093 : #endif
2094 2372 : if (i > 0)
2095 : return;
2096 : #ifdef REF_CHECK
2097 : if (i < 0) {
2098 : fprintf(stderr, "SSL_CTX_free, bad reference count\n");
2099 : abort(); /* ok */
2100 : }
2101 : #endif
2102 :
2103 872 : if (a->param)
2104 872 : X509_VERIFY_PARAM_free(a->param);
2105 :
2106 : /*
2107 : * Free internal session cache. However: the remove_cb() may reference
2108 : * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2109 : * after the sessions were flushed.
2110 : * As the ex_data handling routines might also touch the session cache,
2111 : * the most secure solution seems to be: empty (flush) the cache, then
2112 : * free ex_data, then finally free the cache.
2113 : * (See ticket [openssl.org #212].)
2114 : */
2115 872 : if (a->sessions != NULL)
2116 872 : SSL_CTX_flush_sessions(a, 0);
2117 :
2118 872 : CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
2119 :
2120 872 : if (a->sessions != NULL)
2121 872 : lh_SSL_SESSION_free(a->sessions);
2122 :
2123 872 : if (a->cert_store != NULL)
2124 872 : X509_STORE_free(a->cert_store);
2125 872 : if (a->cipher_list != NULL)
2126 872 : sk_SSL_CIPHER_free(a->cipher_list);
2127 872 : if (a->cipher_list_by_id != NULL)
2128 872 : sk_SSL_CIPHER_free(a->cipher_list_by_id);
2129 872 : if (a->cert != NULL)
2130 872 : ssl_cert_free(a->cert);
2131 872 : if (a->client_CA != NULL)
2132 872 : sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free);
2133 872 : if (a->extra_certs != NULL)
2134 0 : sk_X509_pop_free(a->extra_certs, X509_free);
2135 : #if 0 /* This should never be done, since it
2136 : * removes a global database */
2137 : if (a->comp_methods != NULL)
2138 : sk_SSL_COMP_pop_free(a->comp_methods, SSL_COMP_free);
2139 : #else
2140 872 : a->comp_methods = NULL;
2141 : #endif
2142 :
2143 : #ifndef OPENSSL_NO_SRTP
2144 872 : if (a->srtp_profiles)
2145 0 : sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
2146 : #endif
2147 :
2148 : #ifndef OPENSSL_NO_PSK
2149 872 : if (a->psk_identity_hint)
2150 0 : OPENSSL_free(a->psk_identity_hint);
2151 : #endif
2152 : #ifndef OPENSSL_NO_SRP
2153 872 : SSL_CTX_SRP_CTX_free(a);
2154 : #endif
2155 : #ifndef OPENSSL_NO_ENGINE
2156 872 : if (a->client_cert_engine)
2157 0 : ENGINE_finish(a->client_cert_engine);
2158 : #endif
2159 :
2160 : #ifndef OPENSSL_NO_BUF_FREELISTS
2161 872 : if (a->wbuf_freelist)
2162 872 : ssl_buf_freelist_free(a->wbuf_freelist);
2163 872 : if (a->rbuf_freelist)
2164 872 : ssl_buf_freelist_free(a->rbuf_freelist);
2165 : #endif
2166 : #ifndef OPENSSL_NO_TLSEXT
2167 : # ifndef OPENSSL_NO_EC
2168 872 : if (a->tlsext_ecpointformatlist)
2169 0 : OPENSSL_free(a->tlsext_ecpointformatlist);
2170 872 : if (a->tlsext_ellipticcurvelist)
2171 0 : OPENSSL_free(a->tlsext_ellipticcurvelist);
2172 : # endif /* OPENSSL_NO_EC */
2173 872 : if (a->alpn_client_proto_list != NULL)
2174 434 : OPENSSL_free(a->alpn_client_proto_list);
2175 : #endif
2176 :
2177 872 : OPENSSL_free(a);
2178 : }
2179 :
2180 0 : void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
2181 : {
2182 0 : ctx->default_passwd_callback = cb;
2183 0 : }
2184 :
2185 0 : void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
2186 : {
2187 0 : ctx->default_passwd_callback_userdata = u;
2188 0 : }
2189 :
2190 0 : void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
2191 : int (*cb) (X509_STORE_CTX *, void *),
2192 : void *arg)
2193 : {
2194 0 : ctx->app_verify_callback = cb;
2195 0 : ctx->app_verify_arg = arg;
2196 0 : }
2197 :
2198 434 : void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
2199 : int (*cb) (int, X509_STORE_CTX *))
2200 : {
2201 434 : ctx->verify_mode = mode;
2202 434 : ctx->default_verify_callback = cb;
2203 434 : }
2204 :
2205 0 : void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
2206 : {
2207 0 : X509_VERIFY_PARAM_set_depth(ctx->param, depth);
2208 0 : }
2209 :
2210 0 : void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg),
2211 : void *arg)
2212 : {
2213 0 : ssl_cert_set_cert_cb(c->cert, cb, arg);
2214 0 : }
2215 :
2216 0 : void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
2217 : {
2218 0 : ssl_cert_set_cert_cb(s->cert, cb, arg);
2219 0 : }
2220 :
2221 746 : void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
2222 : {
2223 : CERT_PKEY *cpk;
2224 : int rsa_enc, rsa_tmp, rsa_sign, dh_tmp, dh_rsa, dh_dsa, dsa_sign;
2225 : int rsa_enc_export, dh_rsa_export, dh_dsa_export;
2226 : int rsa_tmp_export, dh_tmp_export, kl;
2227 : unsigned long mask_k, mask_a, emask_k, emask_a;
2228 : #ifndef OPENSSL_NO_ECDSA
2229 : int have_ecc_cert, ecdsa_ok, ecc_pkey_size;
2230 : #endif
2231 : #ifndef OPENSSL_NO_ECDH
2232 : int have_ecdh_tmp, ecdh_ok;
2233 : #endif
2234 : #ifndef OPENSSL_NO_EC
2235 : X509 *x = NULL;
2236 : EVP_PKEY *ecc_pkey = NULL;
2237 746 : int signature_nid = 0, pk_nid = 0, md_nid = 0;
2238 : #endif
2239 746 : if (c == NULL)
2240 0 : return;
2241 :
2242 746 : kl = SSL_C_EXPORT_PKEYLENGTH(cipher);
2243 :
2244 : #ifndef OPENSSL_NO_RSA
2245 746 : rsa_tmp = (c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
2246 746 : rsa_tmp_export = (c->rsa_tmp_cb != NULL ||
2247 0 : (rsa_tmp && RSA_size(c->rsa_tmp) * 8 <= kl));
2248 : #else
2249 : rsa_tmp = rsa_tmp_export = 0;
2250 : #endif
2251 : #ifndef OPENSSL_NO_DH
2252 746 : dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL);
2253 746 : dh_tmp_export = (c->dh_tmp_cb != NULL ||
2254 0 : (dh_tmp && DH_size(c->dh_tmp) * 8 <= kl));
2255 : #else
2256 : dh_tmp = dh_tmp_export = 0;
2257 : #endif
2258 :
2259 : #ifndef OPENSSL_NO_ECDH
2260 746 : have_ecdh_tmp = (c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
2261 : #endif
2262 : cpk = &(c->pkeys[SSL_PKEY_RSA_ENC]);
2263 746 : rsa_enc = cpk->valid_flags & CERT_PKEY_VALID;
2264 746 : rsa_enc_export = (rsa_enc && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
2265 : cpk = &(c->pkeys[SSL_PKEY_RSA_SIGN]);
2266 746 : rsa_sign = cpk->valid_flags & CERT_PKEY_SIGN;
2267 : cpk = &(c->pkeys[SSL_PKEY_DSA_SIGN]);
2268 746 : dsa_sign = cpk->valid_flags & CERT_PKEY_SIGN;
2269 : cpk = &(c->pkeys[SSL_PKEY_DH_RSA]);
2270 746 : dh_rsa = cpk->valid_flags & CERT_PKEY_VALID;
2271 746 : dh_rsa_export = (dh_rsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
2272 : cpk = &(c->pkeys[SSL_PKEY_DH_DSA]);
2273 : /* FIX THIS EAY EAY EAY */
2274 746 : dh_dsa = cpk->valid_flags & CERT_PKEY_VALID;
2275 746 : dh_dsa_export = (dh_dsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
2276 : cpk = &(c->pkeys[SSL_PKEY_ECC]);
2277 : #ifndef OPENSSL_NO_EC
2278 746 : have_ecc_cert = cpk->valid_flags & CERT_PKEY_VALID;
2279 : #endif
2280 : mask_k = 0;
2281 : mask_a = 0;
2282 : emask_k = 0;
2283 : emask_a = 0;
2284 :
2285 : #ifdef CIPHER_DEBUG
2286 : fprintf(stderr,
2287 : "rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2288 : rsa_tmp, rsa_tmp_export, dh_tmp, have_ecdh_tmp, rsa_enc,
2289 : rsa_enc_export, rsa_sign, dsa_sign, dh_rsa, dh_dsa);
2290 : #endif
2291 :
2292 : cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2293 746 : if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2294 : mask_k |= SSL_kGOST;
2295 : mask_a |= SSL_aGOST01;
2296 : }
2297 : cpk = &(c->pkeys[SSL_PKEY_GOST94]);
2298 746 : if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2299 : mask_k |= SSL_kGOST;
2300 0 : mask_a |= SSL_aGOST94;
2301 : }
2302 :
2303 746 : if (rsa_enc || (rsa_tmp && rsa_sign))
2304 746 : mask_k |= SSL_kRSA;
2305 746 : if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
2306 : emask_k |= SSL_kRSA;
2307 :
2308 : #if 0
2309 : /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */
2310 : if ((dh_tmp || dh_rsa || dh_dsa) && (rsa_enc || rsa_sign || dsa_sign))
2311 : mask_k |= SSL_kEDH;
2312 : if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) &&
2313 : (rsa_enc || rsa_sign || dsa_sign))
2314 : emask_k |= SSL_kEDH;
2315 : #endif
2316 :
2317 746 : if (dh_tmp_export)
2318 0 : emask_k |= SSL_kEDH;
2319 :
2320 746 : if (dh_tmp)
2321 0 : mask_k |= SSL_kEDH;
2322 :
2323 746 : if (dh_rsa)
2324 0 : mask_k |= SSL_kDHr;
2325 746 : if (dh_rsa_export)
2326 0 : emask_k |= SSL_kDHr;
2327 :
2328 746 : if (dh_dsa)
2329 0 : mask_k |= SSL_kDHd;
2330 746 : if (dh_dsa_export)
2331 0 : emask_k |= SSL_kDHd;
2332 :
2333 746 : if (mask_k & (SSL_kDHr | SSL_kDHd))
2334 0 : mask_a |= SSL_aDH;
2335 :
2336 746 : if (rsa_enc || rsa_sign) {
2337 746 : mask_a |= SSL_aRSA;
2338 : emask_a |= SSL_aRSA;
2339 : }
2340 :
2341 746 : if (dsa_sign) {
2342 0 : mask_a |= SSL_aDSS;
2343 0 : emask_a |= SSL_aDSS;
2344 : }
2345 :
2346 746 : mask_a |= SSL_aNULL;
2347 746 : emask_a |= SSL_aNULL;
2348 :
2349 : #ifndef OPENSSL_NO_KRB5
2350 : mask_k |= SSL_kKRB5;
2351 : mask_a |= SSL_aKRB5;
2352 : emask_k |= SSL_kKRB5;
2353 : emask_a |= SSL_aKRB5;
2354 : #endif
2355 :
2356 : /*
2357 : * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
2358 : * depending on the key usage extension.
2359 : */
2360 : #ifndef OPENSSL_NO_EC
2361 746 : if (have_ecc_cert) {
2362 : cpk = &c->pkeys[SSL_PKEY_ECC];
2363 0 : x = cpk->x509;
2364 : /* This call populates extension flags (ex_flags) */
2365 0 : X509_check_purpose(x, -1, 0);
2366 : # ifndef OPENSSL_NO_ECDH
2367 0 : ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2368 0 : (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
2369 : # endif
2370 0 : ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2371 0 : (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
2372 0 : if (!(cpk->valid_flags & CERT_PKEY_SIGN))
2373 : ecdsa_ok = 0;
2374 0 : ecc_pkey = X509_get_pubkey(x);
2375 0 : ecc_pkey_size = (ecc_pkey != NULL) ? EVP_PKEY_bits(ecc_pkey) : 0;
2376 0 : EVP_PKEY_free(ecc_pkey);
2377 0 : if ((x->sig_alg) && (x->sig_alg->algorithm)) {
2378 0 : signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2379 0 : OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2380 : }
2381 : # ifndef OPENSSL_NO_ECDH
2382 0 : if (ecdh_ok) {
2383 :
2384 0 : if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa) {
2385 0 : mask_k |= SSL_kECDHr;
2386 0 : mask_a |= SSL_aECDH;
2387 0 : if (ecc_pkey_size <= 163) {
2388 0 : emask_k |= SSL_kECDHr;
2389 0 : emask_a |= SSL_aECDH;
2390 : }
2391 : }
2392 :
2393 0 : if (pk_nid == NID_X9_62_id_ecPublicKey) {
2394 0 : mask_k |= SSL_kECDHe;
2395 0 : mask_a |= SSL_aECDH;
2396 0 : if (ecc_pkey_size <= 163) {
2397 0 : emask_k |= SSL_kECDHe;
2398 0 : emask_a |= SSL_aECDH;
2399 : }
2400 : }
2401 : }
2402 : # endif
2403 : # ifndef OPENSSL_NO_ECDSA
2404 0 : if (ecdsa_ok) {
2405 0 : mask_a |= SSL_aECDSA;
2406 0 : emask_a |= SSL_aECDSA;
2407 : }
2408 : # endif
2409 : }
2410 : #endif
2411 :
2412 : #ifndef OPENSSL_NO_ECDH
2413 746 : if (have_ecdh_tmp) {
2414 746 : mask_k |= SSL_kEECDH;
2415 746 : emask_k |= SSL_kEECDH;
2416 : }
2417 : #endif
2418 :
2419 : #ifndef OPENSSL_NO_PSK
2420 746 : mask_k |= SSL_kPSK;
2421 746 : mask_a |= SSL_aPSK;
2422 746 : emask_k |= SSL_kPSK;
2423 746 : emask_a |= SSL_aPSK;
2424 : #endif
2425 :
2426 746 : c->mask_k = mask_k;
2427 746 : c->mask_a = mask_a;
2428 746 : c->export_mask_k = emask_k;
2429 746 : c->export_mask_a = emask_a;
2430 746 : c->valid = 1;
2431 : }
2432 :
2433 : /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2434 : #define ku_reject(x, usage) \
2435 : (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2436 :
2437 : #ifndef OPENSSL_NO_EC
2438 :
2439 0 : int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2440 : {
2441 : unsigned long alg_k, alg_a;
2442 : EVP_PKEY *pkey = NULL;
2443 : int keysize = 0;
2444 0 : int signature_nid = 0, md_nid = 0, pk_nid = 0;
2445 0 : const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2446 :
2447 0 : alg_k = cs->algorithm_mkey;
2448 0 : alg_a = cs->algorithm_auth;
2449 :
2450 0 : if (SSL_C_IS_EXPORT(cs)) {
2451 : /* ECDH key length in export ciphers must be <= 163 bits */
2452 0 : pkey = X509_get_pubkey(x);
2453 0 : if (pkey == NULL)
2454 : return 0;
2455 0 : keysize = EVP_PKEY_bits(pkey);
2456 0 : EVP_PKEY_free(pkey);
2457 0 : if (keysize > 163)
2458 : return 0;
2459 : }
2460 :
2461 : /* This call populates the ex_flags field correctly */
2462 0 : X509_check_purpose(x, -1, 0);
2463 0 : if ((x->sig_alg) && (x->sig_alg->algorithm)) {
2464 0 : signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2465 0 : OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2466 : }
2467 0 : if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr) {
2468 : /* key usage, if present, must allow key agreement */
2469 0 : if (ku_reject(x, X509v3_KU_KEY_AGREEMENT)) {
2470 0 : SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2471 : SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2472 0 : return 0;
2473 : }
2474 0 : if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION) {
2475 : /* signature alg must be ECDSA */
2476 0 : if (pk_nid != NID_X9_62_id_ecPublicKey) {
2477 0 : SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2478 : SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2479 0 : return 0;
2480 : }
2481 : }
2482 0 : if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION) {
2483 : /* signature alg must be RSA */
2484 :
2485 0 : if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa) {
2486 0 : SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2487 : SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2488 0 : return 0;
2489 : }
2490 : }
2491 : }
2492 0 : if (alg_a & SSL_aECDSA) {
2493 : /* key usage, if present, must allow signing */
2494 0 : if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE)) {
2495 0 : SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2496 : SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2497 0 : return 0;
2498 : }
2499 : }
2500 :
2501 : return 1; /* all checks are ok */
2502 : }
2503 :
2504 : #endif
2505 :
2506 373 : static int ssl_get_server_cert_index(const SSL *s)
2507 : {
2508 : int idx;
2509 373 : idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2510 373 : if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2511 : idx = SSL_PKEY_RSA_SIGN;
2512 373 : if (idx == -1)
2513 0 : SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX, ERR_R_INTERNAL_ERROR);
2514 373 : return idx;
2515 : }
2516 :
2517 746 : CERT_PKEY *ssl_get_server_send_pkey(const SSL *s)
2518 : {
2519 : CERT *c;
2520 : int i;
2521 :
2522 373 : c = s->cert;
2523 373 : if (!s->s3 || !s->s3->tmp.new_cipher)
2524 : return NULL;
2525 373 : ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
2526 :
2527 : #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2528 : /*
2529 : * Broken protocol test: return last used certificate: which may mismatch
2530 : * the one expected.
2531 : */
2532 : if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2533 : return c->key;
2534 : #endif
2535 :
2536 373 : i = ssl_get_server_cert_index(s);
2537 :
2538 : /* This may or may not be an error. */
2539 373 : if (i < 0)
2540 : return NULL;
2541 :
2542 : /* May be NULL. */
2543 373 : return &c->pkeys[i];
2544 : }
2545 :
2546 373 : EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher,
2547 : const EVP_MD **pmd)
2548 : {
2549 : unsigned long alg_a;
2550 : CERT *c;
2551 : int idx = -1;
2552 :
2553 373 : alg_a = cipher->algorithm_auth;
2554 373 : c = s->cert;
2555 :
2556 : #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2557 : /*
2558 : * Broken protocol test: use last key: which may mismatch the one
2559 : * expected.
2560 : */
2561 : if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2562 : idx = c->key - c->pkeys;
2563 : else
2564 : #endif
2565 :
2566 373 : if ((alg_a & SSL_aDSS) &&
2567 0 : (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2568 : idx = SSL_PKEY_DSA_SIGN;
2569 373 : else if (alg_a & SSL_aRSA) {
2570 373 : if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2571 : idx = SSL_PKEY_RSA_SIGN;
2572 373 : else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2573 : idx = SSL_PKEY_RSA_ENC;
2574 0 : } else if ((alg_a & SSL_aECDSA) &&
2575 0 : (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2576 : idx = SSL_PKEY_ECC;
2577 373 : if (idx == -1) {
2578 0 : SSLerr(SSL_F_SSL_GET_SIGN_PKEY, ERR_R_INTERNAL_ERROR);
2579 0 : return (NULL);
2580 : }
2581 373 : if (pmd)
2582 373 : *pmd = c->pkeys[idx].digest;
2583 373 : return c->pkeys[idx].privatekey;
2584 : }
2585 :
2586 : #ifndef OPENSSL_NO_TLSEXT
2587 0 : int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
2588 : size_t *serverinfo_length)
2589 : {
2590 : CERT *c = NULL;
2591 : int i = 0;
2592 0 : *serverinfo_length = 0;
2593 :
2594 0 : c = s->cert;
2595 0 : i = ssl_get_server_cert_index(s);
2596 :
2597 0 : if (i == -1)
2598 : return 0;
2599 0 : if (c->pkeys[i].serverinfo == NULL)
2600 : return 0;
2601 :
2602 0 : *serverinfo = c->pkeys[i].serverinfo;
2603 0 : *serverinfo_length = c->pkeys[i].serverinfo_length;
2604 0 : return 1;
2605 : }
2606 : #endif
2607 :
2608 732 : void ssl_update_cache(SSL *s, int mode)
2609 : {
2610 : int i;
2611 :
2612 : /*
2613 : * If the session_id_length is 0, we are not supposed to cache it, and it
2614 : * would be rather hard to do anyway :-)
2615 : */
2616 732 : if (s->session->session_id_length == 0)
2617 732 : return;
2618 :
2619 365 : i = s->session_ctx->session_cache_mode;
2620 365 : if ((i & mode) && (!s->hit)
2621 0 : && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2622 0 : || SSL_CTX_add_session(s->session_ctx, s->session))
2623 0 : && (s->session_ctx->new_session_cb != NULL)) {
2624 0 : CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION);
2625 0 : if (!s->session_ctx->new_session_cb(s, s->session))
2626 0 : SSL_SESSION_free(s->session);
2627 : }
2628 :
2629 : /* auto flush every 255 connections */
2630 365 : if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
2631 0 : if ((((mode & SSL_SESS_CACHE_CLIENT)
2632 0 : ? s->session_ctx->stats.sess_connect_good
2633 0 : : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) {
2634 0 : SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
2635 : }
2636 : }
2637 : }
2638 :
2639 0 : const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx)
2640 : {
2641 0 : return ctx->method;
2642 : }
2643 :
2644 0 : const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2645 : {
2646 0 : return (s->method);
2647 : }
2648 :
2649 0 : int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2650 : {
2651 : int conn = -1;
2652 : int ret = 1;
2653 :
2654 0 : if (s->method != meth) {
2655 0 : if (s->handshake_func != NULL)
2656 0 : conn = (s->handshake_func == s->method->ssl_connect);
2657 :
2658 0 : if (s->method->version == meth->version)
2659 0 : s->method = meth;
2660 : else {
2661 0 : s->method->ssl_free(s);
2662 0 : s->method = meth;
2663 0 : ret = s->method->ssl_new(s);
2664 : }
2665 :
2666 0 : if (conn == 1)
2667 0 : s->handshake_func = meth->ssl_connect;
2668 0 : else if (conn == 0)
2669 0 : s->handshake_func = meth->ssl_accept;
2670 : }
2671 0 : return (ret);
2672 : }
2673 :
2674 15860 : int SSL_get_error(const SSL *s, int i)
2675 : {
2676 : int reason;
2677 : unsigned long l;
2678 : BIO *bio;
2679 :
2680 15860 : if (i > 0)
2681 : return (SSL_ERROR_NONE);
2682 :
2683 : /*
2684 : * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
2685 : * where we do encode the error
2686 : */
2687 15128 : if ((l = ERR_peek_error()) != 0) {
2688 0 : if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2689 : return (SSL_ERROR_SYSCALL);
2690 : else
2691 0 : return (SSL_ERROR_SSL);
2692 : }
2693 :
2694 30256 : if ((i < 0) && SSL_want_read(s)) {
2695 : bio = SSL_get_rbio(s);
2696 15128 : if (BIO_should_read(bio))
2697 : return (SSL_ERROR_WANT_READ);
2698 0 : else if (BIO_should_write(bio))
2699 : /*
2700 : * This one doesn't make too much sense ... We never try to write
2701 : * to the rbio, and an application program where rbio and wbio
2702 : * are separate couldn't even know what it should wait for.
2703 : * However if we ever set s->rwstate incorrectly (so that we have
2704 : * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
2705 : * wbio *are* the same, this test works around that bug; so it
2706 : * might be safer to keep it.
2707 : */
2708 : return (SSL_ERROR_WANT_WRITE);
2709 0 : else if (BIO_should_io_special(bio)) {
2710 0 : reason = BIO_get_retry_reason(bio);
2711 0 : if (reason == BIO_RR_CONNECT)
2712 : return (SSL_ERROR_WANT_CONNECT);
2713 0 : else if (reason == BIO_RR_ACCEPT)
2714 : return (SSL_ERROR_WANT_ACCEPT);
2715 : else
2716 0 : return (SSL_ERROR_SYSCALL); /* unknown */
2717 : }
2718 : }
2719 :
2720 0 : if ((i < 0) && SSL_want_write(s)) {
2721 : bio = SSL_get_wbio(s);
2722 0 : if (BIO_should_write(bio))
2723 : return (SSL_ERROR_WANT_WRITE);
2724 0 : else if (BIO_should_read(bio))
2725 : /*
2726 : * See above (SSL_want_read(s) with BIO_should_write(bio))
2727 : */
2728 : return (SSL_ERROR_WANT_READ);
2729 0 : else if (BIO_should_io_special(bio)) {
2730 0 : reason = BIO_get_retry_reason(bio);
2731 0 : if (reason == BIO_RR_CONNECT)
2732 : return (SSL_ERROR_WANT_CONNECT);
2733 0 : else if (reason == BIO_RR_ACCEPT)
2734 : return (SSL_ERROR_WANT_ACCEPT);
2735 : else
2736 0 : return (SSL_ERROR_SYSCALL);
2737 : }
2738 : }
2739 0 : if ((i < 0) && SSL_want_x509_lookup(s)) {
2740 : return (SSL_ERROR_WANT_X509_LOOKUP);
2741 : }
2742 :
2743 0 : if (i == 0) {
2744 0 : if (s->version == SSL2_VERSION) {
2745 : /* assume it is the socket being closed */
2746 : return (SSL_ERROR_ZERO_RETURN);
2747 : } else {
2748 0 : if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2749 0 : (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2750 : return (SSL_ERROR_ZERO_RETURN);
2751 : }
2752 : }
2753 0 : return (SSL_ERROR_SYSCALL);
2754 : }
2755 :
2756 1848 : int SSL_do_handshake(SSL *s)
2757 : {
2758 : int ret = 1;
2759 :
2760 1848 : if (s->handshake_func == NULL) {
2761 0 : SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET);
2762 0 : return (-1);
2763 : }
2764 :
2765 1848 : s->method->ssl_renegotiate_check(s);
2766 :
2767 1848 : if (SSL_in_init(s) || SSL_in_before(s)) {
2768 1848 : ret = s->handshake_func(s);
2769 : }
2770 1848 : return (ret);
2771 : }
2772 :
2773 : /*
2774 : * For the next 2 functions, SSL_clear() sets shutdown and so one of these
2775 : * calls will reset it
2776 : */
2777 377 : void SSL_set_accept_state(SSL *s)
2778 : {
2779 377 : s->server = 1;
2780 377 : s->shutdown = 0;
2781 377 : s->state = SSL_ST_ACCEPT | SSL_ST_BEFORE;
2782 377 : s->handshake_func = s->method->ssl_accept;
2783 : /* clear the current cipher */
2784 377 : ssl_clear_cipher_ctx(s);
2785 : ssl_clear_hash_ctx(&s->read_hash);
2786 : ssl_clear_hash_ctx(&s->write_hash);
2787 377 : }
2788 :
2789 373 : void SSL_set_connect_state(SSL *s)
2790 : {
2791 373 : s->server = 0;
2792 373 : s->shutdown = 0;
2793 373 : s->state = SSL_ST_CONNECT | SSL_ST_BEFORE;
2794 373 : s->handshake_func = s->method->ssl_connect;
2795 : /* clear the current cipher */
2796 373 : ssl_clear_cipher_ctx(s);
2797 : ssl_clear_hash_ctx(&s->read_hash);
2798 : ssl_clear_hash_ctx(&s->write_hash);
2799 373 : }
2800 :
2801 0 : int ssl_undefined_function(SSL *s)
2802 : {
2803 0 : SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2804 0 : return (0);
2805 : }
2806 :
2807 0 : int ssl_undefined_void_function(void)
2808 : {
2809 0 : SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,
2810 : ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2811 0 : return (0);
2812 : }
2813 :
2814 0 : int ssl_undefined_const_function(const SSL *s)
2815 : {
2816 0 : SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,
2817 : ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2818 0 : return (0);
2819 : }
2820 :
2821 0 : SSL_METHOD *ssl_bad_method(int ver)
2822 : {
2823 0 : SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2824 0 : return (NULL);
2825 : }
2826 :
2827 0 : const char *SSL_get_version(const SSL *s)
2828 : {
2829 0 : if (s->version == TLS1_2_VERSION)
2830 : return ("TLSv1.2");
2831 0 : else if (s->version == TLS1_1_VERSION)
2832 : return ("TLSv1.1");
2833 0 : else if (s->version == TLS1_VERSION)
2834 : return ("TLSv1");
2835 0 : else if (s->version == SSL3_VERSION)
2836 : return ("SSLv3");
2837 0 : else if (s->version == SSL2_VERSION)
2838 : return ("SSLv2");
2839 0 : else if (s->version == DTLS1_BAD_VER)
2840 : return ("DTLSv0.9");
2841 0 : else if (s->version == DTLS1_VERSION)
2842 : return ("DTLSv1");
2843 0 : else if (s->version == DTLS1_2_VERSION)
2844 : return ("DTLSv1.2");
2845 : else
2846 0 : return ("unknown");
2847 : }
2848 :
2849 0 : SSL *SSL_dup(SSL *s)
2850 : {
2851 : STACK_OF(X509_NAME) *sk;
2852 : X509_NAME *xn;
2853 : SSL *ret;
2854 : int i;
2855 :
2856 0 : if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2857 : return (NULL);
2858 :
2859 0 : ret->version = s->version;
2860 0 : ret->type = s->type;
2861 0 : ret->method = s->method;
2862 :
2863 0 : if (s->session != NULL) {
2864 : /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2865 0 : SSL_copy_session_id(ret, s);
2866 : } else {
2867 : /*
2868 : * No session has been established yet, so we have to expect that
2869 : * s->cert or ret->cert will be changed later -- they should not both
2870 : * point to the same object, and thus we can't use
2871 : * SSL_copy_session_id.
2872 : */
2873 :
2874 0 : ret->method->ssl_free(ret);
2875 0 : ret->method = s->method;
2876 0 : ret->method->ssl_new(ret);
2877 :
2878 0 : if (s->cert != NULL) {
2879 0 : if (ret->cert != NULL) {
2880 0 : ssl_cert_free(ret->cert);
2881 : }
2882 0 : ret->cert = ssl_cert_dup(s->cert);
2883 0 : if (ret->cert == NULL)
2884 : goto err;
2885 : }
2886 :
2887 0 : SSL_set_session_id_context(ret, s->sid_ctx, s->sid_ctx_length);
2888 : }
2889 :
2890 0 : ret->options = s->options;
2891 0 : ret->mode = s->mode;
2892 0 : SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
2893 : SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
2894 0 : ret->msg_callback = s->msg_callback;
2895 0 : ret->msg_callback_arg = s->msg_callback_arg;
2896 : SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
2897 : SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
2898 0 : ret->generate_session_id = s->generate_session_id;
2899 :
2900 : SSL_set_info_callback(ret, SSL_get_info_callback(s));
2901 :
2902 0 : ret->debug = s->debug;
2903 :
2904 : /* copy app data, a little dangerous perhaps */
2905 0 : if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2906 : goto err;
2907 :
2908 : /* setup rbio, and wbio */
2909 0 : if (s->rbio != NULL) {
2910 0 : if (!BIO_dup_state(s->rbio, (char *)&ret->rbio))
2911 : goto err;
2912 : }
2913 0 : if (s->wbio != NULL) {
2914 0 : if (s->wbio != s->rbio) {
2915 0 : if (!BIO_dup_state(s->wbio, (char *)&ret->wbio))
2916 : goto err;
2917 : } else
2918 0 : ret->wbio = ret->rbio;
2919 : }
2920 0 : ret->rwstate = s->rwstate;
2921 0 : ret->in_handshake = s->in_handshake;
2922 0 : ret->handshake_func = s->handshake_func;
2923 0 : ret->server = s->server;
2924 0 : ret->renegotiate = s->renegotiate;
2925 0 : ret->new_session = s->new_session;
2926 0 : ret->quiet_shutdown = s->quiet_shutdown;
2927 0 : ret->shutdown = s->shutdown;
2928 0 : ret->state = s->state; /* SSL_dup does not really work at any state,
2929 : * though */
2930 0 : ret->rstate = s->rstate;
2931 0 : ret->init_num = 0; /* would have to copy ret->init_buf,
2932 : * ret->init_msg, ret->init_num,
2933 : * ret->init_off */
2934 0 : ret->hit = s->hit;
2935 :
2936 0 : X509_VERIFY_PARAM_inherit(ret->param, s->param);
2937 :
2938 : /* dup the cipher_list and cipher_list_by_id stacks */
2939 0 : if (s->cipher_list != NULL) {
2940 0 : if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2941 : goto err;
2942 : }
2943 0 : if (s->cipher_list_by_id != NULL)
2944 0 : if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2945 : == NULL)
2946 : goto err;
2947 :
2948 : /* Dup the client_CA list */
2949 0 : if (s->client_CA != NULL) {
2950 0 : if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL)
2951 : goto err;
2952 0 : ret->client_CA = sk;
2953 0 : for (i = 0; i < sk_X509_NAME_num(sk); i++) {
2954 0 : xn = sk_X509_NAME_value(sk, i);
2955 0 : if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) {
2956 0 : X509_NAME_free(xn);
2957 0 : goto err;
2958 : }
2959 : }
2960 : }
2961 :
2962 : if (0) {
2963 : err:
2964 0 : if (ret != NULL)
2965 0 : SSL_free(ret);
2966 : ret = NULL;
2967 : }
2968 0 : return (ret);
2969 : }
2970 :
2971 2995 : void ssl_clear_cipher_ctx(SSL *s)
2972 : {
2973 2995 : if (s->enc_read_ctx != NULL) {
2974 732 : EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2975 732 : OPENSSL_free(s->enc_read_ctx);
2976 732 : s->enc_read_ctx = NULL;
2977 : }
2978 2995 : if (s->enc_write_ctx != NULL) {
2979 737 : EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2980 737 : OPENSSL_free(s->enc_write_ctx);
2981 737 : s->enc_write_ctx = NULL;
2982 : }
2983 : #ifndef OPENSSL_NO_COMP
2984 2995 : if (s->expand != NULL) {
2985 0 : COMP_CTX_free(s->expand);
2986 0 : s->expand = NULL;
2987 : }
2988 2995 : if (s->compress != NULL) {
2989 0 : COMP_CTX_free(s->compress);
2990 0 : s->compress = NULL;
2991 : }
2992 : #endif
2993 2995 : }
2994 :
2995 0 : X509 *SSL_get_certificate(const SSL *s)
2996 : {
2997 0 : if (s->cert != NULL)
2998 0 : return (s->cert->key->x509);
2999 : else
3000 : return (NULL);
3001 : }
3002 :
3003 0 : EVP_PKEY *SSL_get_privatekey(const SSL *s)
3004 : {
3005 0 : if (s->cert != NULL)
3006 0 : return (s->cert->key->privatekey);
3007 : else
3008 : return (NULL);
3009 : }
3010 :
3011 0 : X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
3012 : {
3013 0 : if (ctx->cert != NULL)
3014 0 : return ctx->cert->key->x509;
3015 : else
3016 : return NULL;
3017 : }
3018 :
3019 0 : EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
3020 : {
3021 0 : if (ctx->cert != NULL)
3022 0 : return ctx->cert->key->privatekey;
3023 : else
3024 : return NULL;
3025 : }
3026 :
3027 0 : const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
3028 : {
3029 0 : if ((s->session != NULL) && (s->session->cipher != NULL))
3030 0 : return (s->session->cipher);
3031 : return (NULL);
3032 : }
3033 :
3034 : #ifdef OPENSSL_NO_COMP
3035 : const void *SSL_get_current_compression(SSL *s)
3036 : {
3037 : return NULL;
3038 : }
3039 :
3040 : const void *SSL_get_current_expansion(SSL *s)
3041 : {
3042 : return NULL;
3043 : }
3044 : #else
3045 :
3046 0 : const COMP_METHOD *SSL_get_current_compression(SSL *s)
3047 : {
3048 0 : if (s->compress != NULL)
3049 0 : return (s->compress->meth);
3050 : return (NULL);
3051 : }
3052 :
3053 0 : const COMP_METHOD *SSL_get_current_expansion(SSL *s)
3054 : {
3055 0 : if (s->expand != NULL)
3056 0 : return (s->expand->meth);
3057 : return (NULL);
3058 : }
3059 : #endif
3060 :
3061 746 : int ssl_init_wbio_buffer(SSL *s, int push)
3062 : {
3063 : BIO *bbio;
3064 :
3065 746 : if (s->bbio == NULL) {
3066 746 : bbio = BIO_new(BIO_f_buffer());
3067 746 : if (bbio == NULL)
3068 : return (0);
3069 746 : s->bbio = bbio;
3070 : } else {
3071 : bbio = s->bbio;
3072 0 : if (s->bbio == s->wbio)
3073 0 : s->wbio = BIO_pop(s->wbio);
3074 : }
3075 746 : (void)BIO_reset(bbio);
3076 : /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
3077 746 : if (!BIO_set_read_buffer_size(bbio, 1)) {
3078 0 : SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB);
3079 0 : return (0);
3080 : }
3081 746 : if (push) {
3082 373 : if (s->wbio != bbio)
3083 373 : s->wbio = BIO_push(bbio, s->wbio);
3084 : } else {
3085 373 : if (s->wbio == bbio)
3086 0 : s->wbio = BIO_pop(bbio);
3087 : }
3088 : return (1);
3089 : }
3090 :
3091 3727 : void ssl_free_wbio_buffer(SSL *s)
3092 : {
3093 3727 : if (s->bbio == NULL)
3094 3727 : return;
3095 :
3096 732 : if (s->bbio == s->wbio) {
3097 : /* remove buffering */
3098 732 : s->wbio = BIO_pop(s->wbio);
3099 : #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids
3100 : * adding one more preprocessor symbol */
3101 : assert(s->wbio != NULL);
3102 : #endif
3103 : }
3104 732 : BIO_free(s->bbio);
3105 732 : s->bbio = NULL;
3106 : }
3107 :
3108 0 : void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
3109 : {
3110 0 : ctx->quiet_shutdown = mode;
3111 0 : }
3112 :
3113 0 : int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
3114 : {
3115 0 : return (ctx->quiet_shutdown);
3116 : }
3117 :
3118 0 : void SSL_set_quiet_shutdown(SSL *s, int mode)
3119 : {
3120 0 : s->quiet_shutdown = mode;
3121 0 : }
3122 :
3123 0 : int SSL_get_quiet_shutdown(const SSL *s)
3124 : {
3125 0 : return (s->quiet_shutdown);
3126 : }
3127 :
3128 0 : void SSL_set_shutdown(SSL *s, int mode)
3129 : {
3130 0 : s->shutdown = mode;
3131 0 : }
3132 :
3133 0 : int SSL_get_shutdown(const SSL *s)
3134 : {
3135 0 : return (s->shutdown);
3136 : }
3137 :
3138 2984 : int SSL_version(const SSL *s)
3139 : {
3140 2984 : return (s->version);
3141 : }
3142 :
3143 0 : SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
3144 : {
3145 0 : return (ssl->ctx);
3146 : }
3147 :
3148 373 : SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
3149 : {
3150 373 : CERT *ocert = ssl->cert;
3151 373 : if (ssl->ctx == ctx)
3152 : return ssl->ctx;
3153 : #ifndef OPENSSL_NO_TLSEXT
3154 0 : if (ctx == NULL)
3155 0 : ctx = ssl->initial_ctx;
3156 : #endif
3157 0 : ssl->cert = ssl_cert_dup(ctx->cert);
3158 0 : if (ocert) {
3159 : /* Preserve any already negotiated parameters */
3160 0 : if (ssl->server) {
3161 0 : ssl->cert->peer_sigalgs = ocert->peer_sigalgs;
3162 0 : ssl->cert->peer_sigalgslen = ocert->peer_sigalgslen;
3163 0 : ocert->peer_sigalgs = NULL;
3164 0 : ssl->cert->ciphers_raw = ocert->ciphers_raw;
3165 0 : ssl->cert->ciphers_rawlen = ocert->ciphers_rawlen;
3166 0 : ocert->ciphers_raw = NULL;
3167 : }
3168 0 : ssl_cert_free(ocert);
3169 : }
3170 :
3171 : /*
3172 : * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
3173 : * so setter APIs must prevent invalid lengths from entering the system.
3174 : */
3175 0 : OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx));
3176 :
3177 : /*
3178 : * If the session ID context matches that of the parent SSL_CTX,
3179 : * inherit it from the new SSL_CTX as well. If however the context does
3180 : * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
3181 : * leave it unchanged.
3182 : */
3183 0 : if ((ssl->ctx != NULL) &&
3184 0 : (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
3185 0 : (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) {
3186 0 : ssl->sid_ctx_length = ctx->sid_ctx_length;
3187 0 : memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx));
3188 : }
3189 :
3190 0 : CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
3191 0 : if (ssl->ctx != NULL)
3192 0 : SSL_CTX_free(ssl->ctx); /* decrement reference count */
3193 0 : ssl->ctx = ctx;
3194 :
3195 0 : return (ssl->ctx);
3196 : }
3197 :
3198 : #ifndef OPENSSL_NO_STDIO
3199 0 : int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
3200 : {
3201 0 : return (X509_STORE_set_default_paths(ctx->cert_store));
3202 : }
3203 :
3204 0 : int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
3205 : const char *CApath)
3206 : {
3207 0 : return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath));
3208 : }
3209 : #endif
3210 :
3211 749 : void SSL_set_info_callback(SSL *ssl,
3212 : void (*cb) (const SSL *ssl, int type, int val))
3213 : {
3214 749 : ssl->info_callback = cb;
3215 749 : }
3216 :
3217 : /*
3218 : * One compiler (Diab DCC) doesn't like argument names in returned function
3219 : * pointer.
3220 : */
3221 0 : void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
3222 : int /* type */ ,
3223 : int /* val */ ) {
3224 0 : return ssl->info_callback;
3225 : }
3226 :
3227 53970 : int SSL_state(const SSL *ssl)
3228 : {
3229 55818 : return (ssl->state);
3230 : }
3231 :
3232 0 : void SSL_set_state(SSL *ssl, int state)
3233 : {
3234 0 : ssl->state = state;
3235 0 : }
3236 :
3237 0 : void SSL_set_verify_result(SSL *ssl, long arg)
3238 : {
3239 0 : ssl->verify_result = arg;
3240 0 : }
3241 :
3242 0 : long SSL_get_verify_result(const SSL *ssl)
3243 : {
3244 0 : return (ssl->verify_result);
3245 : }
3246 :
3247 0 : int SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
3248 : CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
3249 : {
3250 0 : return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
3251 : new_func, dup_func, free_func);
3252 : }
3253 :
3254 0 : int SSL_set_ex_data(SSL *s, int idx, void *arg)
3255 : {
3256 0 : return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
3257 : }
3258 :
3259 0 : void *SSL_get_ex_data(const SSL *s, int idx)
3260 : {
3261 0 : return (CRYPTO_get_ex_data(&s->ex_data, idx));
3262 : }
3263 :
3264 0 : int SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
3265 : CRYPTO_EX_dup *dup_func,
3266 : CRYPTO_EX_free *free_func)
3267 : {
3268 0 : return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
3269 : new_func, dup_func, free_func);
3270 : }
3271 :
3272 0 : int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
3273 : {
3274 0 : return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
3275 : }
3276 :
3277 0 : void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
3278 : {
3279 0 : return (CRYPTO_get_ex_data(&s->ex_data, idx));
3280 : }
3281 :
3282 0 : int ssl_ok(SSL *s)
3283 : {
3284 0 : return (1);
3285 : }
3286 :
3287 434 : X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
3288 : {
3289 434 : return (ctx->cert_store);
3290 : }
3291 :
3292 0 : void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
3293 : {
3294 0 : if (ctx->cert_store != NULL)
3295 0 : X509_STORE_free(ctx->cert_store);
3296 0 : ctx->cert_store = store;
3297 0 : }
3298 :
3299 0 : int SSL_want(const SSL *s)
3300 : {
3301 15128 : return (s->rwstate);
3302 : }
3303 :
3304 : /**
3305 : * \brief Set the callback for generating temporary RSA keys.
3306 : * \param ctx the SSL context.
3307 : * \param cb the callback
3308 : */
3309 :
3310 : #ifndef OPENSSL_NO_RSA
3311 0 : void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb) (SSL *ssl,
3312 : int is_export,
3313 : int keylength))
3314 : {
3315 : SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb);
3316 0 : }
3317 :
3318 0 : void SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb) (SSL *ssl,
3319 : int is_export,
3320 : int keylength))
3321 : {
3322 : SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb);
3323 0 : }
3324 : #endif
3325 :
3326 : #ifdef DOXYGEN
3327 : /**
3328 : * \brief The RSA temporary key callback function.
3329 : * \param ssl the SSL session.
3330 : * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3331 : * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3332 : * of the required key in bits.
3333 : * \return the temporary RSA key.
3334 : * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3335 : */
3336 :
3337 : RSA *cb(SSL *ssl, int is_export, int keylength)
3338 : {
3339 : }
3340 : #endif
3341 :
3342 : /**
3343 : * \brief Set the callback for generating temporary DH keys.
3344 : * \param ctx the SSL context.
3345 : * \param dh the callback
3346 : */
3347 :
3348 : #ifndef OPENSSL_NO_DH
3349 0 : void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
3350 : DH *(*dh) (SSL *ssl, int is_export,
3351 : int keylength))
3352 : {
3353 : SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3354 0 : }
3355 :
3356 0 : void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export,
3357 : int keylength))
3358 : {
3359 : SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3360 0 : }
3361 : #endif
3362 :
3363 : #ifndef OPENSSL_NO_ECDH
3364 0 : void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,
3365 : EC_KEY *(*ecdh) (SSL *ssl, int is_export,
3366 : int keylength))
3367 : {
3368 : SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB,
3369 : (void (*)(void))ecdh);
3370 0 : }
3371 :
3372 0 : void SSL_set_tmp_ecdh_callback(SSL *ssl,
3373 : EC_KEY *(*ecdh) (SSL *ssl, int is_export,
3374 : int keylength))
3375 : {
3376 : SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB, (void (*)(void))ecdh);
3377 0 : }
3378 : #endif
3379 :
3380 : #ifndef OPENSSL_NO_PSK
3381 0 : int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3382 : {
3383 0 : if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3384 0 : SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT,
3385 : SSL_R_DATA_LENGTH_TOO_LONG);
3386 0 : return 0;
3387 : }
3388 0 : if (ctx->psk_identity_hint != NULL)
3389 0 : OPENSSL_free(ctx->psk_identity_hint);
3390 0 : if (identity_hint != NULL) {
3391 0 : ctx->psk_identity_hint = BUF_strdup(identity_hint);
3392 0 : if (ctx->psk_identity_hint == NULL)
3393 : return 0;
3394 : } else
3395 0 : ctx->psk_identity_hint = NULL;
3396 : return 1;
3397 : }
3398 :
3399 0 : int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3400 : {
3401 0 : if (s == NULL)
3402 : return 0;
3403 :
3404 0 : if (s->session == NULL)
3405 : return 1; /* session not created yet, ignored */
3406 :
3407 0 : if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3408 0 : SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3409 0 : return 0;
3410 : }
3411 0 : if (s->session->psk_identity_hint != NULL)
3412 0 : OPENSSL_free(s->session->psk_identity_hint);
3413 0 : if (identity_hint != NULL) {
3414 0 : s->session->psk_identity_hint = BUF_strdup(identity_hint);
3415 0 : if (s->session->psk_identity_hint == NULL)
3416 : return 0;
3417 : } else
3418 0 : s->session->psk_identity_hint = NULL;
3419 : return 1;
3420 : }
3421 :
3422 0 : const char *SSL_get_psk_identity_hint(const SSL *s)
3423 : {
3424 0 : if (s == NULL || s->session == NULL)
3425 : return NULL;
3426 0 : return (s->session->psk_identity_hint);
3427 : }
3428 :
3429 0 : const char *SSL_get_psk_identity(const SSL *s)
3430 : {
3431 0 : if (s == NULL || s->session == NULL)
3432 : return NULL;
3433 0 : return (s->session->psk_identity);
3434 : }
3435 :
3436 0 : void SSL_set_psk_client_callback(SSL *s,
3437 : unsigned int (*cb) (SSL *ssl,
3438 : const char *hint,
3439 : char *identity,
3440 : unsigned int
3441 : max_identity_len,
3442 : unsigned char *psk,
3443 : unsigned int
3444 : max_psk_len))
3445 : {
3446 0 : s->psk_client_callback = cb;
3447 0 : }
3448 :
3449 0 : void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3450 : unsigned int (*cb) (SSL *ssl,
3451 : const char *hint,
3452 : char *identity,
3453 : unsigned int
3454 : max_identity_len,
3455 : unsigned char *psk,
3456 : unsigned int
3457 : max_psk_len))
3458 : {
3459 0 : ctx->psk_client_callback = cb;
3460 0 : }
3461 :
3462 0 : void SSL_set_psk_server_callback(SSL *s,
3463 : unsigned int (*cb) (SSL *ssl,
3464 : const char *identity,
3465 : unsigned char *psk,
3466 : unsigned int
3467 : max_psk_len))
3468 : {
3469 0 : s->psk_server_callback = cb;
3470 0 : }
3471 :
3472 0 : void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3473 : unsigned int (*cb) (SSL *ssl,
3474 : const char *identity,
3475 : unsigned char *psk,
3476 : unsigned int
3477 : max_psk_len))
3478 : {
3479 0 : ctx->psk_server_callback = cb;
3480 0 : }
3481 : #endif
3482 :
3483 0 : void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
3484 : void (*cb) (int write_p, int version,
3485 : int content_type, const void *buf,
3486 : size_t len, SSL *ssl, void *arg))
3487 : {
3488 : SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3489 0 : }
3490 :
3491 0 : void SSL_set_msg_callback(SSL *ssl,
3492 : void (*cb) (int write_p, int version,
3493 : int content_type, const void *buf,
3494 : size_t len, SSL *ssl, void *arg))
3495 : {
3496 : SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3497 0 : }
3498 :
3499 : /*
3500 : * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3501 : * vairable, freeing EVP_MD_CTX previously stored in that variable, if any.
3502 : * If EVP_MD pointer is passed, initializes ctx with this md Returns newly
3503 : * allocated ctx;
3504 : */
3505 :
3506 1469 : EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
3507 : {
3508 : ssl_clear_hash_ctx(hash);
3509 1469 : *hash = EVP_MD_CTX_create();
3510 1469 : if (md)
3511 0 : EVP_DigestInit_ex(*hash, md, NULL);
3512 1469 : return *hash;
3513 : }
3514 :
3515 0 : void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3516 : {
3517 :
3518 7455 : if (*hash)
3519 1469 : EVP_MD_CTX_destroy(*hash);
3520 7455 : *hash = NULL;
3521 0 : }
3522 :
3523 0 : void SSL_set_debug(SSL *s, int debug)
3524 : {
3525 0 : s->debug = debug;
3526 0 : }
3527 :
3528 0 : int SSL_cache_hit(SSL *s)
3529 : {
3530 0 : return s->hit;
3531 : }
3532 :
3533 0 : int SSL_is_server(SSL *s)
3534 : {
3535 0 : return s->server;
3536 : }
3537 :
3538 : #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16)
3539 : # include "../crypto/bio/bss_file.c"
3540 : #endif
3541 :
3542 : IMPLEMENT_STACK_OF(SSL_CIPHER)
3543 : IMPLEMENT_STACK_OF(SSL_COMP)
3544 23466 : IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
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