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-rw-r--r--src/lib/libssl/ssl_lib.c3492
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diff --git a/src/lib/libssl/ssl_lib.c b/src/lib/libssl/ssl_lib.c
deleted file mode 100644
index de4ef3fb5e..0000000000
--- a/src/lib/libssl/ssl_lib.c
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1/* $OpenBSD: ssl_lib.c,v 1.308 2022/11/26 16:08:55 tb Exp $ */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58/* ====================================================================
59 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
60 *
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
63 * are met:
64 *
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
67 *
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
71 * distribution.
72 *
73 * 3. All advertising materials mentioning features or use of this
74 * software must display the following acknowledgment:
75 * "This product includes software developed by the OpenSSL Project
76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77 *
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 * endorse or promote products derived from this software without
80 * prior written permission. For written permission, please contact
81 * openssl-core@openssl.org.
82 *
83 * 5. Products derived from this software may not be called "OpenSSL"
84 * nor may "OpenSSL" appear in their names without prior written
85 * permission of the OpenSSL Project.
86 *
87 * 6. Redistributions of any form whatsoever must retain the following
88 * acknowledgment:
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91 *
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
105 *
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com). This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
109 *
110 */
111/* ====================================================================
112 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
113 * ECC cipher suite support in OpenSSL originally developed by
114 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
115 */
116/* ====================================================================
117 * Copyright 2005 Nokia. All rights reserved.
118 *
119 * The portions of the attached software ("Contribution") is developed by
120 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
121 * license.
122 *
123 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
124 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
125 * support (see RFC 4279) to OpenSSL.
126 *
127 * No patent licenses or other rights except those expressly stated in
128 * the OpenSSL open source license shall be deemed granted or received
129 * expressly, by implication, estoppel, or otherwise.
130 *
131 * No assurances are provided by Nokia that the Contribution does not
132 * infringe the patent or other intellectual property rights of any third
133 * party or that the license provides you with all the necessary rights
134 * to make use of the Contribution.
135 *
136 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
137 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
138 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
139 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
140 * OTHERWISE.
141 */
142
143#include <arpa/inet.h>
144#include <sys/socket.h>
145#include <netinet/in.h>
146
147#include <limits.h>
148#include <stdio.h>
149
150#include <openssl/dh.h>
151#include <openssl/lhash.h>
152#include <openssl/objects.h>
153#include <openssl/ocsp.h>
154#include <openssl/opensslconf.h>
155#include <openssl/x509v3.h>
156
157#ifndef OPENSSL_NO_ENGINE
158#include <openssl/engine.h>
159#endif
160
161#include "bytestring.h"
162#include "dtls_local.h"
163#include "ssl_local.h"
164#include "ssl_sigalgs.h"
165#include "ssl_tlsext.h"
166#include "tls12_internal.h"
167
168const char *SSL_version_str = OPENSSL_VERSION_TEXT;
169
170int
171SSL_clear(SSL *s)
172{
173 if (s->method == NULL) {
174 SSLerror(s, SSL_R_NO_METHOD_SPECIFIED);
175 return (0);
176 }
177
178 if (ssl_clear_bad_session(s)) {
179 SSL_SESSION_free(s->session);
180 s->session = NULL;
181 }
182
183 s->error = 0;
184 s->hit = 0;
185 s->shutdown = 0;
186
187 if (s->renegotiate) {
188 SSLerror(s, ERR_R_INTERNAL_ERROR);
189 return (0);
190 }
191
192 s->version = s->method->version;
193 s->client_version = s->version;
194 s->rwstate = SSL_NOTHING;
195 s->rstate = SSL_ST_READ_HEADER;
196
197 tls13_ctx_free(s->tls13);
198 s->tls13 = NULL;
199
200 ssl3_release_init_buffer(s);
201
202 ssl_clear_cipher_state(s);
203
204 s->first_packet = 0;
205
206 /*
207 * Check to see if we were changed into a different method, if
208 * so, revert back if we are not doing session-id reuse.
209 */
210 if (!s->in_handshake && (s->session == NULL) &&
211 (s->method != s->ctx->method)) {
212 s->method->ssl_free(s);
213 s->method = s->ctx->method;
214 if (!s->method->ssl_new(s))
215 return (0);
216 } else
217 s->method->ssl_clear(s);
218
219 return (1);
220}
221
222/* Used to change an SSL_CTXs default SSL method type */
223int
224SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
225{
226 STACK_OF(SSL_CIPHER) *ciphers;
227
228 ctx->method = meth;
229
230 ciphers = ssl_create_cipher_list(ctx->method, &ctx->cipher_list,
231 ctx->cipher_list_tls13, SSL_DEFAULT_CIPHER_LIST,
232 ctx->cert);
233 if (ciphers == NULL || sk_SSL_CIPHER_num(ciphers) <= 0) {
234 SSLerrorx(SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
235 return (0);
236 }
237 return (1);
238}
239
240SSL *
241SSL_new(SSL_CTX *ctx)
242{
243 SSL *s;
244 CBS cbs;
245
246 if (ctx == NULL) {
247 SSLerrorx(SSL_R_NULL_SSL_CTX);
248 return (NULL);
249 }
250 if (ctx->method == NULL) {
251 SSLerrorx(SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
252 return (NULL);
253 }
254
255 if ((s = calloc(1, sizeof(*s))) == NULL)
256 goto err;
257
258 if ((s->rl = tls12_record_layer_new()) == NULL)
259 goto err;
260
261 s->min_tls_version = ctx->min_tls_version;
262 s->max_tls_version = ctx->max_tls_version;
263 s->min_proto_version = ctx->min_proto_version;
264 s->max_proto_version = ctx->max_proto_version;
265
266 s->options = ctx->options;
267 s->mode = ctx->mode;
268 s->max_cert_list = ctx->max_cert_list;
269 s->num_tickets = ctx->num_tickets;
270
271 if ((s->cert = ssl_cert_dup(ctx->cert)) == NULL)
272 goto err;
273
274 s->read_ahead = ctx->read_ahead;
275 s->msg_callback = ctx->msg_callback;
276 s->msg_callback_arg = ctx->msg_callback_arg;
277 s->verify_mode = ctx->verify_mode;
278 s->sid_ctx_length = ctx->sid_ctx_length;
279 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
280 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
281 s->verify_callback = ctx->default_verify_callback;
282 s->generate_session_id = ctx->generate_session_id;
283
284 s->param = X509_VERIFY_PARAM_new();
285 if (!s->param)
286 goto err;
287 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
288 s->quiet_shutdown = ctx->quiet_shutdown;
289 s->max_send_fragment = ctx->max_send_fragment;
290
291 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
292 s->ctx = ctx;
293 s->tlsext_debug_cb = 0;
294 s->tlsext_debug_arg = NULL;
295 s->tlsext_ticket_expected = 0;
296 s->tlsext_status_type = -1;
297 s->tlsext_status_expected = 0;
298 s->tlsext_ocsp_ids = NULL;
299 s->tlsext_ocsp_exts = NULL;
300 s->tlsext_ocsp_resp = NULL;
301 s->tlsext_ocsp_resp_len = 0;
302 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
303 s->initial_ctx = ctx;
304
305 if (ctx->tlsext_ecpointformatlist != NULL) {
306 s->tlsext_ecpointformatlist =
307 calloc(ctx->tlsext_ecpointformatlist_length,
308 sizeof(ctx->tlsext_ecpointformatlist[0]));
309 if (s->tlsext_ecpointformatlist == NULL)
310 goto err;
311 memcpy(s->tlsext_ecpointformatlist,
312 ctx->tlsext_ecpointformatlist,
313 ctx->tlsext_ecpointformatlist_length *
314 sizeof(ctx->tlsext_ecpointformatlist[0]));
315 s->tlsext_ecpointformatlist_length =
316 ctx->tlsext_ecpointformatlist_length;
317 }
318 if (ctx->tlsext_supportedgroups != NULL) {
319 s->tlsext_supportedgroups =
320 calloc(ctx->tlsext_supportedgroups_length,
321 sizeof(ctx->tlsext_supportedgroups[0]));
322 if (s->tlsext_supportedgroups == NULL)
323 goto err;
324 memcpy(s->tlsext_supportedgroups,
325 ctx->tlsext_supportedgroups,
326 ctx->tlsext_supportedgroups_length *
327 sizeof(ctx->tlsext_supportedgroups[0]));
328 s->tlsext_supportedgroups_length =
329 ctx->tlsext_supportedgroups_length;
330 }
331
332 CBS_init(&cbs, ctx->alpn_client_proto_list,
333 ctx->alpn_client_proto_list_len);
334 if (!CBS_stow(&cbs, &s->alpn_client_proto_list,
335 &s->alpn_client_proto_list_len))
336 goto err;
337
338 s->verify_result = X509_V_OK;
339
340 s->method = ctx->method;
341 s->quic_method = ctx->quic_method;
342
343 if (!s->method->ssl_new(s))
344 goto err;
345
346 s->references = 1;
347 s->server = ctx->method->server;
348
349 SSL_clear(s);
350
351 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
352
353 return (s);
354
355 err:
356 SSL_free(s);
357 SSLerrorx(ERR_R_MALLOC_FAILURE);
358 return (NULL);
359}
360
361int
362SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
363 unsigned int sid_ctx_len)
364{
365 if (sid_ctx_len > sizeof ctx->sid_ctx) {
366 SSLerrorx(SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
367 return (0);
368 }
369 ctx->sid_ctx_length = sid_ctx_len;
370 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
371
372 return (1);
373}
374
375int
376SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
377 unsigned int sid_ctx_len)
378{
379 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
380 SSLerror(ssl, SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
381 return (0);
382 }
383 ssl->sid_ctx_length = sid_ctx_len;
384 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len);
385
386 return (1);
387}
388
389int
390SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
391{
392 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
393 ctx->generate_session_id = cb;
394 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
395 return (1);
396}
397
398int
399SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
400{
401 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
402 ssl->generate_session_id = cb;
403 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
404 return (1);
405}
406
407int
408SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
409 unsigned int id_len)
410{
411 /*
412 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp
413 * shows how we can "construct" a session to give us the desired
414 * check - ie. to find if there's a session in the hash table
415 * that would conflict with any new session built out of this
416 * id/id_len and the ssl_version in use by this SSL.
417 */
418 SSL_SESSION r, *p;
419
420 if (id_len > sizeof r.session_id)
421 return (0);
422
423 r.ssl_version = ssl->version;
424 r.session_id_length = id_len;
425 memcpy(r.session_id, id, id_len);
426
427 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
428 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
429 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
430 return (p != NULL);
431}
432
433int
434SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
435{
436 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose));
437}
438
439int
440SSL_set_purpose(SSL *s, int purpose)
441{
442 return (X509_VERIFY_PARAM_set_purpose(s->param, purpose));
443}
444
445int
446SSL_CTX_set_trust(SSL_CTX *s, int trust)
447{
448 return (X509_VERIFY_PARAM_set_trust(s->param, trust));
449}
450
451int
452SSL_set_trust(SSL *s, int trust)
453{
454 return (X509_VERIFY_PARAM_set_trust(s->param, trust));
455}
456
457int
458SSL_set1_host(SSL *s, const char *hostname)
459{
460 struct in_addr ina;
461 struct in6_addr in6a;
462
463 if (hostname != NULL && *hostname != '\0' &&
464 (inet_pton(AF_INET, hostname, &ina) == 1 ||
465 inet_pton(AF_INET6, hostname, &in6a) == 1))
466 return X509_VERIFY_PARAM_set1_ip_asc(s->param, hostname);
467 else
468 return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0);
469}
470
471void
472SSL_set_hostflags(SSL *s, unsigned int flags)
473{
474 X509_VERIFY_PARAM_set_hostflags(s->param, flags);
475}
476
477const char *
478SSL_get0_peername(SSL *s)
479{
480 return X509_VERIFY_PARAM_get0_peername(s->param);
481}
482
483X509_VERIFY_PARAM *
484SSL_CTX_get0_param(SSL_CTX *ctx)
485{
486 return (ctx->param);
487}
488
489int
490SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
491{
492 return (X509_VERIFY_PARAM_set1(ctx->param, vpm));
493}
494
495X509_VERIFY_PARAM *
496SSL_get0_param(SSL *ssl)
497{
498 return (ssl->param);
499}
500
501int
502SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
503{
504 return (X509_VERIFY_PARAM_set1(ssl->param, vpm));
505}
506
507void
508SSL_free(SSL *s)
509{
510 int i;
511
512 if (s == NULL)
513 return;
514
515 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL);
516 if (i > 0)
517 return;
518
519 X509_VERIFY_PARAM_free(s->param);
520
521 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
522
523 if (s->bbio != NULL) {
524 /* If the buffering BIO is in place, pop it off */
525 if (s->bbio == s->wbio) {
526 s->wbio = BIO_pop(s->wbio);
527 }
528 BIO_free(s->bbio);
529 s->bbio = NULL;
530 }
531
532 if (s->rbio != s->wbio)
533 BIO_free_all(s->rbio);
534 BIO_free_all(s->wbio);
535
536 tls13_ctx_free(s->tls13);
537
538 ssl3_release_init_buffer(s);
539
540 sk_SSL_CIPHER_free(s->cipher_list);
541 sk_SSL_CIPHER_free(s->cipher_list_tls13);
542
543 /* Make the next call work :-) */
544 if (s->session != NULL) {
545 ssl_clear_bad_session(s);
546 SSL_SESSION_free(s->session);
547 }
548
549 ssl_clear_cipher_state(s);
550
551 ssl_cert_free(s->cert);
552
553 free(s->tlsext_hostname);
554 SSL_CTX_free(s->initial_ctx);
555
556 free(s->tlsext_ecpointformatlist);
557 free(s->tlsext_supportedgroups);
558
559 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts,
560 X509_EXTENSION_free);
561 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
562 free(s->tlsext_ocsp_resp);
563
564 sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free);
565
566 if (s->method != NULL)
567 s->method->ssl_free(s);
568
569 SSL_CTX_free(s->ctx);
570
571 free(s->alpn_client_proto_list);
572
573 free(s->quic_transport_params);
574
575#ifndef OPENSSL_NO_SRTP
576 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
577#endif
578
579 tls12_record_layer_free(s->rl);
580
581 free(s);
582}
583
584int
585SSL_up_ref(SSL *s)
586{
587 int refs = CRYPTO_add(&s->references, 1, CRYPTO_LOCK_SSL);
588 return (refs > 1) ? 1 : 0;
589}
590
591void
592SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
593{
594 /* If the output buffering BIO is still in place, remove it */
595 if (s->bbio != NULL) {
596 if (s->wbio == s->bbio) {
597 s->wbio = BIO_next(s->wbio);
598 BIO_set_next(s->bbio, NULL);
599 }
600 }
601
602 if (s->rbio != rbio && s->rbio != s->wbio)
603 BIO_free_all(s->rbio);
604 if (s->wbio != wbio)
605 BIO_free_all(s->wbio);
606 s->rbio = rbio;
607 s->wbio = wbio;
608}
609
610BIO *
611SSL_get_rbio(const SSL *s)
612{
613 return (s->rbio);
614}
615
616void
617SSL_set0_rbio(SSL *s, BIO *rbio)
618{
619 BIO_free_all(s->rbio);
620 s->rbio = rbio;
621}
622
623BIO *
624SSL_get_wbio(const SSL *s)
625{
626 return (s->wbio);
627}
628
629int
630SSL_get_fd(const SSL *s)
631{
632 return (SSL_get_rfd(s));
633}
634
635int
636SSL_get_rfd(const SSL *s)
637{
638 int ret = -1;
639 BIO *b, *r;
640
641 b = SSL_get_rbio(s);
642 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
643 if (r != NULL)
644 BIO_get_fd(r, &ret);
645 return (ret);
646}
647
648int
649SSL_get_wfd(const SSL *s)
650{
651 int ret = -1;
652 BIO *b, *r;
653
654 b = SSL_get_wbio(s);
655 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
656 if (r != NULL)
657 BIO_get_fd(r, &ret);
658 return (ret);
659}
660
661int
662SSL_set_fd(SSL *s, int fd)
663{
664 int ret = 0;
665 BIO *bio = NULL;
666
667 bio = BIO_new(BIO_s_socket());
668
669 if (bio == NULL) {
670 SSLerror(s, ERR_R_BUF_LIB);
671 goto err;
672 }
673 BIO_set_fd(bio, fd, BIO_NOCLOSE);
674 SSL_set_bio(s, bio, bio);
675 ret = 1;
676 err:
677 return (ret);
678}
679
680int
681SSL_set_wfd(SSL *s, int fd)
682{
683 int ret = 0;
684 BIO *bio = NULL;
685
686 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
687 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) {
688 bio = BIO_new(BIO_s_socket());
689
690 if (bio == NULL) {
691 SSLerror(s, ERR_R_BUF_LIB);
692 goto err;
693 }
694 BIO_set_fd(bio, fd, BIO_NOCLOSE);
695 SSL_set_bio(s, SSL_get_rbio(s), bio);
696 } else
697 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s));
698 ret = 1;
699 err:
700 return (ret);
701}
702
703int
704SSL_set_rfd(SSL *s, int fd)
705{
706 int ret = 0;
707 BIO *bio = NULL;
708
709 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
710 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) {
711 bio = BIO_new(BIO_s_socket());
712
713 if (bio == NULL) {
714 SSLerror(s, ERR_R_BUF_LIB);
715 goto err;
716 }
717 BIO_set_fd(bio, fd, BIO_NOCLOSE);
718 SSL_set_bio(s, bio, SSL_get_wbio(s));
719 } else
720 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s));
721 ret = 1;
722 err:
723 return (ret);
724}
725
726
727/* return length of latest Finished message we sent, copy to 'buf' */
728size_t
729SSL_get_finished(const SSL *s, void *buf, size_t count)
730{
731 size_t ret;
732
733 ret = s->s3->hs.finished_len;
734 if (count > ret)
735 count = ret;
736 memcpy(buf, s->s3->hs.finished, count);
737 return (ret);
738}
739
740/* return length of latest Finished message we expected, copy to 'buf' */
741size_t
742SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
743{
744 size_t ret;
745
746 ret = s->s3->hs.peer_finished_len;
747 if (count > ret)
748 count = ret;
749 memcpy(buf, s->s3->hs.peer_finished, count);
750 return (ret);
751}
752
753
754int
755SSL_get_verify_mode(const SSL *s)
756{
757 return (s->verify_mode);
758}
759
760int
761SSL_get_verify_depth(const SSL *s)
762{
763 return (X509_VERIFY_PARAM_get_depth(s->param));
764}
765
766int
767(*SSL_get_verify_callback(const SSL *s))(int, X509_STORE_CTX *)
768{
769 return (s->verify_callback);
770}
771
772void
773SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb)
774{
775 ctx->keylog_callback = cb;
776}
777
778SSL_CTX_keylog_cb_func
779SSL_CTX_get_keylog_callback(const SSL_CTX *ctx)
780{
781 return (ctx->keylog_callback);
782}
783
784int
785SSL_set_num_tickets(SSL *s, size_t num_tickets)
786{
787 s->num_tickets = num_tickets;
788
789 return 1;
790}
791
792size_t
793SSL_get_num_tickets(const SSL *s)
794{
795 return s->num_tickets;
796}
797
798int
799SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets)
800{
801 ctx->num_tickets = num_tickets;
802
803 return 1;
804}
805
806size_t
807SSL_CTX_get_num_tickets(const SSL_CTX *ctx)
808{
809 return ctx->num_tickets;
810}
811
812int
813SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
814{
815 return (ctx->verify_mode);
816}
817
818int
819SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
820{
821 return (X509_VERIFY_PARAM_get_depth(ctx->param));
822}
823
824int
825(*SSL_CTX_get_verify_callback(const SSL_CTX *ctx))(int, X509_STORE_CTX *)
826{
827 return (ctx->default_verify_callback);
828}
829
830void
831SSL_set_verify(SSL *s, int mode,
832 int (*callback)(int ok, X509_STORE_CTX *ctx))
833{
834 s->verify_mode = mode;
835 if (callback != NULL)
836 s->verify_callback = callback;
837}
838
839void
840SSL_set_verify_depth(SSL *s, int depth)
841{
842 X509_VERIFY_PARAM_set_depth(s->param, depth);
843}
844
845void
846SSL_set_read_ahead(SSL *s, int yes)
847{
848 s->read_ahead = yes;
849}
850
851int
852SSL_get_read_ahead(const SSL *s)
853{
854 return (s->read_ahead);
855}
856
857int
858SSL_pending(const SSL *s)
859{
860 return (s->method->ssl_pending(s));
861}
862
863X509 *
864SSL_get_peer_certificate(const SSL *s)
865{
866 X509 *cert;
867
868 if (s == NULL || s->session == NULL)
869 return NULL;
870
871 if ((cert = s->session->peer_cert) == NULL)
872 return NULL;
873
874 X509_up_ref(cert);
875
876 return cert;
877}
878
879STACK_OF(X509) *
880SSL_get_peer_cert_chain(const SSL *s)
881{
882 if (s == NULL)
883 return NULL;
884
885 /*
886 * Achtung! Due to API inconsistency, a client includes the peer's leaf
887 * certificate in the peer certificate chain, while a server does not.
888 */
889 if (!s->server)
890 return s->s3->hs.peer_certs;
891
892 return s->s3->hs.peer_certs_no_leaf;
893}
894
895STACK_OF(X509) *
896SSL_get0_verified_chain(const SSL *s)
897{
898 return s->verified_chain;
899}
900
901/*
902 * Now in theory, since the calling process own 't' it should be safe to
903 * modify. We need to be able to read f without being hassled
904 */
905int
906SSL_copy_session_id(SSL *t, const SSL *f)
907{
908 SSL_CERT *tmp;
909
910 /* Do we need to do SSL locking? */
911 if (!SSL_set_session(t, SSL_get_session(f)))
912 return 0;
913
914 /* What if we are set up for one protocol but want to talk another? */
915 if (t->method != f->method) {
916 t->method->ssl_free(t);
917 t->method = f->method;
918 if (!t->method->ssl_new(t))
919 return 0;
920 }
921
922 tmp = t->cert;
923 if (f->cert != NULL) {
924 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT);
925 t->cert = f->cert;
926 } else
927 t->cert = NULL;
928 ssl_cert_free(tmp);
929
930 if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length))
931 return 0;
932
933 return 1;
934}
935
936/* Fix this so it checks all the valid key/cert options */
937int
938SSL_CTX_check_private_key(const SSL_CTX *ctx)
939{
940 if ((ctx == NULL) || (ctx->cert == NULL) ||
941 (ctx->cert->key->x509 == NULL)) {
942 SSLerrorx(SSL_R_NO_CERTIFICATE_ASSIGNED);
943 return (0);
944 }
945 if (ctx->cert->key->privatekey == NULL) {
946 SSLerrorx(SSL_R_NO_PRIVATE_KEY_ASSIGNED);
947 return (0);
948 }
949 return (X509_check_private_key(ctx->cert->key->x509,
950 ctx->cert->key->privatekey));
951}
952
953/* Fix this function so that it takes an optional type parameter */
954int
955SSL_check_private_key(const SSL *ssl)
956{
957 if (ssl == NULL) {
958 SSLerrorx(ERR_R_PASSED_NULL_PARAMETER);
959 return (0);
960 }
961 if (ssl->cert == NULL) {
962 SSLerror(ssl, SSL_R_NO_CERTIFICATE_ASSIGNED);
963 return (0);
964 }
965 if (ssl->cert->key->x509 == NULL) {
966 SSLerror(ssl, SSL_R_NO_CERTIFICATE_ASSIGNED);
967 return (0);
968 }
969 if (ssl->cert->key->privatekey == NULL) {
970 SSLerror(ssl, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
971 return (0);
972 }
973 return (X509_check_private_key(ssl->cert->key->x509,
974 ssl->cert->key->privatekey));
975}
976
977int
978SSL_accept(SSL *s)
979{
980 if (s->handshake_func == NULL)
981 SSL_set_accept_state(s); /* Not properly initialized yet */
982
983 return (s->method->ssl_accept(s));
984}
985
986int
987SSL_connect(SSL *s)
988{
989 if (s->handshake_func == NULL)
990 SSL_set_connect_state(s); /* Not properly initialized yet */
991
992 return (s->method->ssl_connect(s));
993}
994
995int
996SSL_is_dtls(const SSL *s)
997{
998 return s->method->dtls;
999}
1000
1001int
1002SSL_is_server(const SSL *s)
1003{
1004 return s->server;
1005}
1006
1007static long
1008ssl_get_default_timeout()
1009{
1010 /*
1011 * 2 hours, the 24 hours mentioned in the TLSv1 spec
1012 * is way too long for http, the cache would over fill.
1013 */
1014 return (2 * 60 * 60);
1015}
1016
1017long
1018SSL_get_default_timeout(const SSL *s)
1019{
1020 return (ssl_get_default_timeout());
1021}
1022
1023int
1024SSL_read(SSL *s, void *buf, int num)
1025{
1026 if (num < 0) {
1027 SSLerror(s, SSL_R_BAD_LENGTH);
1028 return -1;
1029 }
1030
1031 if (SSL_is_quic(s)) {
1032 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1033 return (-1);
1034 }
1035
1036 if (s->handshake_func == NULL) {
1037 SSLerror(s, SSL_R_UNINITIALIZED);
1038 return (-1);
1039 }
1040
1041 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
1042 s->rwstate = SSL_NOTHING;
1043 return (0);
1044 }
1045 return ssl3_read(s, buf, num);
1046}
1047
1048int
1049SSL_read_ex(SSL *s, void *buf, size_t num, size_t *bytes_read)
1050{
1051 int ret;
1052
1053 /* We simply don't bother supporting enormous reads */
1054 if (num > INT_MAX) {
1055 SSLerror(s, SSL_R_BAD_LENGTH);
1056 return 0;
1057 }
1058
1059 ret = SSL_read(s, buf, (int)num);
1060 if (ret < 0)
1061 ret = 0;
1062 *bytes_read = ret;
1063
1064 return ret > 0;
1065}
1066
1067int
1068SSL_peek(SSL *s, void *buf, int num)
1069{
1070 if (num < 0) {
1071 SSLerror(s, SSL_R_BAD_LENGTH);
1072 return -1;
1073 }
1074
1075 if (SSL_is_quic(s)) {
1076 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1077 return (-1);
1078 }
1079
1080 if (s->handshake_func == NULL) {
1081 SSLerror(s, SSL_R_UNINITIALIZED);
1082 return (-1);
1083 }
1084
1085 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
1086 return (0);
1087 }
1088 return ssl3_peek(s, buf, num);
1089}
1090
1091int
1092SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *bytes_peeked)
1093{
1094 int ret;
1095
1096 /* We simply don't bother supporting enormous peeks */
1097 if (num > INT_MAX) {
1098 SSLerror(s, SSL_R_BAD_LENGTH);
1099 return 0;
1100 }
1101
1102 ret = SSL_peek(s, buf, (int)num);
1103 if (ret < 0)
1104 ret = 0;
1105 *bytes_peeked = ret;
1106
1107 return ret > 0;
1108}
1109
1110int
1111SSL_write(SSL *s, const void *buf, int num)
1112{
1113 if (num < 0) {
1114 SSLerror(s, SSL_R_BAD_LENGTH);
1115 return -1;
1116 }
1117
1118 if (SSL_is_quic(s)) {
1119 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1120 return (-1);
1121 }
1122
1123 if (s->handshake_func == NULL) {
1124 SSLerror(s, SSL_R_UNINITIALIZED);
1125 return (-1);
1126 }
1127
1128 if (s->shutdown & SSL_SENT_SHUTDOWN) {
1129 s->rwstate = SSL_NOTHING;
1130 SSLerror(s, SSL_R_PROTOCOL_IS_SHUTDOWN);
1131 return (-1);
1132 }
1133 return ssl3_write(s, buf, num);
1134}
1135
1136int
1137SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *bytes_written)
1138{
1139 int ret;
1140
1141 /* We simply don't bother supporting enormous writes */
1142 if (num > INT_MAX) {
1143 SSLerror(s, SSL_R_BAD_LENGTH);
1144 return 0;
1145 }
1146
1147 if (num == 0) {
1148 /* This API is special */
1149 bytes_written = 0;
1150 return 1;
1151 }
1152
1153 ret = SSL_write(s, buf, (int)num);
1154 if (ret < 0)
1155 ret = 0;
1156 *bytes_written = ret;
1157
1158 return ret > 0;
1159}
1160
1161uint32_t
1162SSL_CTX_get_max_early_data(const SSL_CTX *ctx)
1163{
1164 return 0;
1165}
1166
1167int
1168SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data)
1169{
1170 return 1;
1171}
1172
1173uint32_t
1174SSL_get_max_early_data(const SSL *s)
1175{
1176 return 0;
1177}
1178
1179int
1180SSL_set_max_early_data(SSL *s, uint32_t max_early_data)
1181{
1182 return 1;
1183}
1184
1185int
1186SSL_get_early_data_status(const SSL *s)
1187{
1188 return SSL_EARLY_DATA_REJECTED;
1189}
1190
1191int
1192SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes)
1193{
1194 *readbytes = 0;
1195
1196 if (!s->server) {
1197 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1198 return SSL_READ_EARLY_DATA_ERROR;
1199 }
1200
1201 return SSL_READ_EARLY_DATA_FINISH;
1202}
1203
1204int
1205SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written)
1206{
1207 *written = 0;
1208 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
1209 return 0;
1210}
1211
1212int
1213SSL_shutdown(SSL *s)
1214{
1215 /*
1216 * Note that this function behaves differently from what one might
1217 * expect. Return values are 0 for no success (yet),
1218 * 1 for success; but calling it once is usually not enough,
1219 * even if blocking I/O is used (see ssl3_shutdown).
1220 */
1221
1222 if (s->handshake_func == NULL) {
1223 SSLerror(s, SSL_R_UNINITIALIZED);
1224 return (-1);
1225 }
1226
1227 if (s != NULL && !SSL_in_init(s))
1228 return (s->method->ssl_shutdown(s));
1229
1230 return (1);
1231}
1232
1233int
1234SSL_renegotiate(SSL *s)
1235{
1236 if (s->renegotiate == 0)
1237 s->renegotiate = 1;
1238
1239 s->new_session = 1;
1240
1241 return (s->method->ssl_renegotiate(s));
1242}
1243
1244int
1245SSL_renegotiate_abbreviated(SSL *s)
1246{
1247 if (s->renegotiate == 0)
1248 s->renegotiate = 1;
1249
1250 s->new_session = 0;
1251
1252 return (s->method->ssl_renegotiate(s));
1253}
1254
1255int
1256SSL_renegotiate_pending(SSL *s)
1257{
1258 /*
1259 * Becomes true when negotiation is requested;
1260 * false again once a handshake has finished.
1261 */
1262 return (s->renegotiate != 0);
1263}
1264
1265long
1266SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
1267{
1268 long l;
1269
1270 switch (cmd) {
1271 case SSL_CTRL_GET_READ_AHEAD:
1272 return (s->read_ahead);
1273 case SSL_CTRL_SET_READ_AHEAD:
1274 l = s->read_ahead;
1275 s->read_ahead = larg;
1276 return (l);
1277
1278 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1279 s->msg_callback_arg = parg;
1280 return (1);
1281
1282 case SSL_CTRL_OPTIONS:
1283 return (s->options|=larg);
1284 case SSL_CTRL_CLEAR_OPTIONS:
1285 return (s->options&=~larg);
1286 case SSL_CTRL_MODE:
1287 return (s->mode|=larg);
1288 case SSL_CTRL_CLEAR_MODE:
1289 return (s->mode &=~larg);
1290 case SSL_CTRL_GET_MAX_CERT_LIST:
1291 return (s->max_cert_list);
1292 case SSL_CTRL_SET_MAX_CERT_LIST:
1293 l = s->max_cert_list;
1294 s->max_cert_list = larg;
1295 return (l);
1296 case SSL_CTRL_SET_MTU:
1297#ifndef OPENSSL_NO_DTLS1
1298 if (larg < (long)dtls1_min_mtu())
1299 return (0);
1300#endif
1301 if (SSL_is_dtls(s)) {
1302 s->d1->mtu = larg;
1303 return (larg);
1304 }
1305 return (0);
1306 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1307 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1308 return (0);
1309 s->max_send_fragment = larg;
1310 return (1);
1311 case SSL_CTRL_GET_RI_SUPPORT:
1312 if (s->s3)
1313 return (s->s3->send_connection_binding);
1314 else return (0);
1315 default:
1316 if (SSL_is_dtls(s))
1317 return dtls1_ctrl(s, cmd, larg, parg);
1318 return ssl3_ctrl(s, cmd, larg, parg);
1319 }
1320}
1321
1322long
1323SSL_callback_ctrl(SSL *s, int cmd, void (*fp)(void))
1324{
1325 switch (cmd) {
1326 case SSL_CTRL_SET_MSG_CALLBACK:
1327 s->msg_callback = (ssl_msg_callback_fn *)(fp);
1328 return (1);
1329
1330 default:
1331 return (ssl3_callback_ctrl(s, cmd, fp));
1332 }
1333}
1334
1335struct lhash_st_SSL_SESSION *
1336SSL_CTX_sessions(SSL_CTX *ctx)
1337{
1338 return (ctx->sessions);
1339}
1340
1341long
1342SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
1343{
1344 long l;
1345
1346 switch (cmd) {
1347 case SSL_CTRL_GET_READ_AHEAD:
1348 return (ctx->read_ahead);
1349 case SSL_CTRL_SET_READ_AHEAD:
1350 l = ctx->read_ahead;
1351 ctx->read_ahead = larg;
1352 return (l);
1353
1354 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1355 ctx->msg_callback_arg = parg;
1356 return (1);
1357
1358 case SSL_CTRL_GET_MAX_CERT_LIST:
1359 return (ctx->max_cert_list);
1360 case SSL_CTRL_SET_MAX_CERT_LIST:
1361 l = ctx->max_cert_list;
1362 ctx->max_cert_list = larg;
1363 return (l);
1364
1365 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1366 l = ctx->session_cache_size;
1367 ctx->session_cache_size = larg;
1368 return (l);
1369 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1370 return (ctx->session_cache_size);
1371 case SSL_CTRL_SET_SESS_CACHE_MODE:
1372 l = ctx->session_cache_mode;
1373 ctx->session_cache_mode = larg;
1374 return (l);
1375 case SSL_CTRL_GET_SESS_CACHE_MODE:
1376 return (ctx->session_cache_mode);
1377
1378 case SSL_CTRL_SESS_NUMBER:
1379 return (lh_SSL_SESSION_num_items(ctx->sessions));
1380 case SSL_CTRL_SESS_CONNECT:
1381 return (ctx->stats.sess_connect);
1382 case SSL_CTRL_SESS_CONNECT_GOOD:
1383 return (ctx->stats.sess_connect_good);
1384 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1385 return (ctx->stats.sess_connect_renegotiate);
1386 case SSL_CTRL_SESS_ACCEPT:
1387 return (ctx->stats.sess_accept);
1388 case SSL_CTRL_SESS_ACCEPT_GOOD:
1389 return (ctx->stats.sess_accept_good);
1390 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1391 return (ctx->stats.sess_accept_renegotiate);
1392 case SSL_CTRL_SESS_HIT:
1393 return (ctx->stats.sess_hit);
1394 case SSL_CTRL_SESS_CB_HIT:
1395 return (ctx->stats.sess_cb_hit);
1396 case SSL_CTRL_SESS_MISSES:
1397 return (ctx->stats.sess_miss);
1398 case SSL_CTRL_SESS_TIMEOUTS:
1399 return (ctx->stats.sess_timeout);
1400 case SSL_CTRL_SESS_CACHE_FULL:
1401 return (ctx->stats.sess_cache_full);
1402 case SSL_CTRL_OPTIONS:
1403 return (ctx->options|=larg);
1404 case SSL_CTRL_CLEAR_OPTIONS:
1405 return (ctx->options&=~larg);
1406 case SSL_CTRL_MODE:
1407 return (ctx->mode|=larg);
1408 case SSL_CTRL_CLEAR_MODE:
1409 return (ctx->mode&=~larg);
1410 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1411 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1412 return (0);
1413 ctx->max_send_fragment = larg;
1414 return (1);
1415 default:
1416 return (ssl3_ctx_ctrl(ctx, cmd, larg, parg));
1417 }
1418}
1419
1420long
1421SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp)(void))
1422{
1423 switch (cmd) {
1424 case SSL_CTRL_SET_MSG_CALLBACK:
1425 ctx->msg_callback = (ssl_msg_callback_fn *)fp;
1426 return (1);
1427
1428 default:
1429 return (ssl3_ctx_callback_ctrl(ctx, cmd, fp));
1430 }
1431}
1432
1433int
1434ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1435{
1436 long l;
1437
1438 l = a->id - b->id;
1439 if (l == 0L)
1440 return (0);
1441 else
1442 return ((l > 0) ? 1:-1);
1443}
1444
1445STACK_OF(SSL_CIPHER) *
1446SSL_get_ciphers(const SSL *s)
1447{
1448 if (s == NULL)
1449 return (NULL);
1450 if (s->cipher_list != NULL)
1451 return (s->cipher_list);
1452
1453 return (s->ctx->cipher_list);
1454}
1455
1456STACK_OF(SSL_CIPHER) *
1457SSL_get_client_ciphers(const SSL *s)
1458{
1459 if (s == NULL || s->session == NULL || !s->server)
1460 return NULL;
1461 return s->session->ciphers;
1462}
1463
1464STACK_OF(SSL_CIPHER) *
1465SSL_get1_supported_ciphers(SSL *s)
1466{
1467 STACK_OF(SSL_CIPHER) *supported_ciphers = NULL, *ciphers;
1468 SSL_CIPHER *cipher;
1469 uint16_t min_vers, max_vers;
1470 int i;
1471
1472 if (s == NULL)
1473 return NULL;
1474 if (!ssl_supported_tls_version_range(s, &min_vers, &max_vers))
1475 return NULL;
1476 if ((ciphers = SSL_get_ciphers(s)) == NULL)
1477 return NULL;
1478 if ((supported_ciphers = sk_SSL_CIPHER_new_null()) == NULL)
1479 return NULL;
1480
1481 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
1482 if ((cipher = sk_SSL_CIPHER_value(ciphers, i)) == NULL)
1483 goto err;
1484 if (!ssl_cipher_allowed_in_tls_version_range(cipher, min_vers,
1485 max_vers))
1486 continue;
1487 if (!ssl_security_supported_cipher(s, cipher))
1488 continue;
1489 if (!sk_SSL_CIPHER_push(supported_ciphers, cipher))
1490 goto err;
1491 }
1492
1493 if (sk_SSL_CIPHER_num(supported_ciphers) > 0)
1494 return supported_ciphers;
1495
1496 err:
1497 sk_SSL_CIPHER_free(supported_ciphers);
1498 return NULL;
1499}
1500
1501/* See if we have any ECC cipher suites. */
1502int
1503ssl_has_ecc_ciphers(SSL *s)
1504{
1505 STACK_OF(SSL_CIPHER) *ciphers;
1506 unsigned long alg_k, alg_a;
1507 SSL_CIPHER *cipher;
1508 int i;
1509
1510 if ((ciphers = SSL_get_ciphers(s)) == NULL)
1511 return 0;
1512
1513 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
1514 cipher = sk_SSL_CIPHER_value(ciphers, i);
1515
1516 alg_k = cipher->algorithm_mkey;
1517 alg_a = cipher->algorithm_auth;
1518
1519 if ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA))
1520 return 1;
1521 }
1522
1523 return 0;
1524}
1525
1526/* The old interface to get the same thing as SSL_get_ciphers(). */
1527const char *
1528SSL_get_cipher_list(const SSL *s, int n)
1529{
1530 STACK_OF(SSL_CIPHER) *ciphers;
1531 const SSL_CIPHER *cipher;
1532
1533 if ((ciphers = SSL_get_ciphers(s)) == NULL)
1534 return (NULL);
1535 if ((cipher = sk_SSL_CIPHER_value(ciphers, n)) == NULL)
1536 return (NULL);
1537
1538 return (cipher->name);
1539}
1540
1541STACK_OF(SSL_CIPHER) *
1542SSL_CTX_get_ciphers(const SSL_CTX *ctx)
1543{
1544 if (ctx == NULL)
1545 return NULL;
1546 return ctx->cipher_list;
1547}
1548
1549/* Specify the ciphers to be used by default by the SSL_CTX. */
1550int
1551SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1552{
1553 STACK_OF(SSL_CIPHER) *ciphers;
1554
1555 /*
1556 * ssl_create_cipher_list may return an empty stack if it was unable to
1557 * find a cipher matching the given rule string (for example if the
1558 * rule string specifies a cipher which has been disabled). This is not
1559 * an error as far as ssl_create_cipher_list is concerned, and hence
1560 * ctx->cipher_list has been updated.
1561 */
1562 ciphers = ssl_create_cipher_list(ctx->method, &ctx->cipher_list,
1563 ctx->cipher_list_tls13, str, ctx->cert);
1564 if (ciphers == NULL) {
1565 return (0);
1566 } else if (sk_SSL_CIPHER_num(ciphers) == 0) {
1567 SSLerrorx(SSL_R_NO_CIPHER_MATCH);
1568 return (0);
1569 }
1570 return (1);
1571}
1572
1573int
1574SSL_CTX_set_ciphersuites(SSL_CTX *ctx, const char *str)
1575{
1576 if (!ssl_parse_ciphersuites(&ctx->cipher_list_tls13, str)) {
1577 SSLerrorx(SSL_R_NO_CIPHER_MATCH);
1578 return 0;
1579 }
1580 if (!ssl_merge_cipherlists(ctx->cipher_list,
1581 ctx->cipher_list_tls13, &ctx->cipher_list))
1582 return 0;
1583
1584 return 1;
1585}
1586
1587/* Specify the ciphers to be used by the SSL. */
1588int
1589SSL_set_cipher_list(SSL *s, const char *str)
1590{
1591 STACK_OF(SSL_CIPHER) *ciphers, *ciphers_tls13;
1592
1593 if ((ciphers_tls13 = s->cipher_list_tls13) == NULL)
1594 ciphers_tls13 = s->ctx->cipher_list_tls13;
1595
1596 /* See comment in SSL_CTX_set_cipher_list. */
1597 ciphers = ssl_create_cipher_list(s->ctx->method, &s->cipher_list,
1598 ciphers_tls13, str, s->cert);
1599 if (ciphers == NULL) {
1600 return (0);
1601 } else if (sk_SSL_CIPHER_num(ciphers) == 0) {
1602 SSLerror(s, SSL_R_NO_CIPHER_MATCH);
1603 return (0);
1604 }
1605 return (1);
1606}
1607
1608int
1609SSL_set_ciphersuites(SSL *s, const char *str)
1610{
1611 STACK_OF(SSL_CIPHER) *ciphers;
1612
1613 if ((ciphers = s->cipher_list) == NULL)
1614 ciphers = s->ctx->cipher_list;
1615
1616 if (!ssl_parse_ciphersuites(&s->cipher_list_tls13, str)) {
1617 SSLerrorx(SSL_R_NO_CIPHER_MATCH);
1618 return (0);
1619 }
1620 if (!ssl_merge_cipherlists(ciphers, s->cipher_list_tls13,
1621 &s->cipher_list))
1622 return 0;
1623
1624 return 1;
1625}
1626
1627char *
1628SSL_get_shared_ciphers(const SSL *s, char *buf, int len)
1629{
1630 STACK_OF(SSL_CIPHER) *client_ciphers, *server_ciphers;
1631 const SSL_CIPHER *cipher;
1632 size_t curlen = 0;
1633 char *end;
1634 int i;
1635
1636 if (!s->server || s->session == NULL || len < 2)
1637 return NULL;
1638
1639 if ((client_ciphers = s->session->ciphers) == NULL)
1640 return NULL;
1641 if ((server_ciphers = SSL_get_ciphers(s)) == NULL)
1642 return NULL;
1643 if (sk_SSL_CIPHER_num(client_ciphers) == 0 ||
1644 sk_SSL_CIPHER_num(server_ciphers) == 0)
1645 return NULL;
1646
1647 buf[0] = '\0';
1648 for (i = 0; i < sk_SSL_CIPHER_num(client_ciphers); i++) {
1649 cipher = sk_SSL_CIPHER_value(client_ciphers, i);
1650
1651 if (sk_SSL_CIPHER_find(server_ciphers, cipher) < 0)
1652 continue;
1653
1654 end = buf + curlen;
1655 if (strlcat(buf, cipher->name, len) >= len ||
1656 (curlen = strlcat(buf, ":", len)) >= len) {
1657 /* remove truncated cipher from list */
1658 *end = '\0';
1659 break;
1660 }
1661 }
1662 /* remove trailing colon */
1663 if ((end = strrchr(buf, ':')) != NULL)
1664 *end = '\0';
1665 return buf;
1666}
1667
1668/*
1669 * Return a servername extension value if provided in Client Hello, or NULL.
1670 * So far, only host_name types are defined (RFC 3546).
1671 */
1672const char *
1673SSL_get_servername(const SSL *s, const int type)
1674{
1675 if (type != TLSEXT_NAMETYPE_host_name)
1676 return (NULL);
1677
1678 return (s->session && !s->tlsext_hostname ?
1679 s->session->tlsext_hostname :
1680 s->tlsext_hostname);
1681}
1682
1683int
1684SSL_get_servername_type(const SSL *s)
1685{
1686 if (s->session &&
1687 (!s->tlsext_hostname ?
1688 s->session->tlsext_hostname : s->tlsext_hostname))
1689 return (TLSEXT_NAMETYPE_host_name);
1690 return (-1);
1691}
1692
1693/*
1694 * SSL_select_next_proto implements standard protocol selection. It is
1695 * expected that this function is called from the callback set by
1696 * SSL_CTX_set_alpn_select_cb.
1697 *
1698 * The protocol data is assumed to be a vector of 8-bit, length prefixed byte
1699 * strings. The length byte itself is not included in the length. A byte
1700 * string of length 0 is invalid. No byte string may be truncated.
1701 *
1702 * It returns either:
1703 * OPENSSL_NPN_NEGOTIATED if a common protocol was found, or
1704 * OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1705 */
1706int
1707SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
1708 const unsigned char *server, unsigned int server_len,
1709 const unsigned char *client, unsigned int client_len)
1710{
1711 unsigned int i, j;
1712 const unsigned char *result;
1713 int status = OPENSSL_NPN_UNSUPPORTED;
1714
1715 /*
1716 * For each protocol in server preference order,
1717 * see if we support it.
1718 */
1719 for (i = 0; i < server_len; ) {
1720 for (j = 0; j < client_len; ) {
1721 if (server[i] == client[j] &&
1722 memcmp(&server[i + 1],
1723 &client[j + 1], server[i]) == 0) {
1724 /* We found a match */
1725 result = &server[i];
1726 status = OPENSSL_NPN_NEGOTIATED;
1727 goto found;
1728 }
1729 j += client[j];
1730 j++;
1731 }
1732 i += server[i];
1733 i++;
1734 }
1735
1736 /* There's no overlap between our protocols and the server's list. */
1737 result = client;
1738 status = OPENSSL_NPN_NO_OVERLAP;
1739
1740 found:
1741 *out = (unsigned char *) result + 1;
1742 *outlen = result[0];
1743 return (status);
1744}
1745
1746/* SSL_get0_next_proto_negotiated is deprecated. */
1747void
1748SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
1749 unsigned int *len)
1750{
1751 *data = NULL;
1752 *len = 0;
1753}
1754
1755/* SSL_CTX_set_next_protos_advertised_cb is deprecated. */
1756void
1757SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, int (*cb) (SSL *ssl,
1758 const unsigned char **out, unsigned int *outlen, void *arg), void *arg)
1759{
1760}
1761
1762/* SSL_CTX_set_next_proto_select_cb is deprecated. */
1763void
1764SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, int (*cb) (SSL *s,
1765 unsigned char **out, unsigned char *outlen, const unsigned char *in,
1766 unsigned int inlen, void *arg), void *arg)
1767{
1768}
1769
1770/*
1771 * SSL_CTX_set_alpn_protos sets the ALPN protocol list to the specified
1772 * protocols, which must be in wire-format (i.e. a series of non-empty,
1773 * 8-bit length-prefixed strings). Returns 0 on success.
1774 */
1775int
1776SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
1777 unsigned int protos_len)
1778{
1779 CBS cbs;
1780 int failed = 1;
1781
1782 if (protos == NULL)
1783 protos_len = 0;
1784
1785 CBS_init(&cbs, protos, protos_len);
1786
1787 if (protos_len > 0) {
1788 if (!tlsext_alpn_check_format(&cbs))
1789 goto err;
1790 }
1791
1792 if (!CBS_stow(&cbs, &ctx->alpn_client_proto_list,
1793 &ctx->alpn_client_proto_list_len))
1794 goto err;
1795
1796 failed = 0;
1797
1798 err:
1799 /* NOTE: Return values are the reverse of what you expect. */
1800 return failed;
1801}
1802
1803/*
1804 * SSL_set_alpn_protos sets the ALPN protocol list to the specified
1805 * protocols, which must be in wire-format (i.e. a series of non-empty,
1806 * 8-bit length-prefixed strings). Returns 0 on success.
1807 */
1808int
1809SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
1810 unsigned int protos_len)
1811{
1812 CBS cbs;
1813 int failed = 1;
1814
1815 if (protos == NULL)
1816 protos_len = 0;
1817
1818 CBS_init(&cbs, protos, protos_len);
1819
1820 if (protos_len > 0) {
1821 if (!tlsext_alpn_check_format(&cbs))
1822 goto err;
1823 }
1824
1825 if (!CBS_stow(&cbs, &ssl->alpn_client_proto_list,
1826 &ssl->alpn_client_proto_list_len))
1827 goto err;
1828
1829 failed = 0;
1830
1831 err:
1832 /* NOTE: Return values are the reverse of what you expect. */
1833 return failed;
1834}
1835
1836/*
1837 * SSL_CTX_set_alpn_select_cb sets a callback function that is called during
1838 * ClientHello processing in order to select an ALPN protocol from the
1839 * client's list of offered protocols.
1840 */
1841void
1842SSL_CTX_set_alpn_select_cb(SSL_CTX* ctx,
1843 int (*cb) (SSL *ssl, const unsigned char **out, unsigned char *outlen,
1844 const unsigned char *in, unsigned int inlen, void *arg), void *arg)
1845{
1846 ctx->alpn_select_cb = cb;
1847 ctx->alpn_select_cb_arg = arg;
1848}
1849
1850/*
1851 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any). On return
1852 * it sets data to point to len bytes of protocol name (not including the
1853 * leading length-prefix byte). If the server didn't respond with* a negotiated
1854 * protocol then len will be zero.
1855 */
1856void
1857SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
1858 unsigned int *len)
1859{
1860 *data = ssl->s3->alpn_selected;
1861 *len = ssl->s3->alpn_selected_len;
1862}
1863
1864void
1865SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb)
1866{
1867 return;
1868}
1869
1870int
1871SSL_export_keying_material(SSL *s, unsigned char *out, size_t out_len,
1872 const char *label, size_t label_len, const unsigned char *context,
1873 size_t context_len, int use_context)
1874{
1875 if (s->tls13 != NULL && s->version == TLS1_3_VERSION) {
1876 if (!use_context) {
1877 context = NULL;
1878 context_len = 0;
1879 }
1880 return tls13_exporter(s->tls13, label, label_len, context,
1881 context_len, out, out_len);
1882 }
1883
1884 return tls12_exporter(s, label, label_len, context, context_len,
1885 use_context, out, out_len);
1886}
1887
1888static unsigned long
1889ssl_session_hash(const SSL_SESSION *a)
1890{
1891 unsigned long l;
1892
1893 l = (unsigned long)
1894 ((unsigned int) a->session_id[0] )|
1895 ((unsigned int) a->session_id[1]<< 8L)|
1896 ((unsigned long)a->session_id[2]<<16L)|
1897 ((unsigned long)a->session_id[3]<<24L);
1898 return (l);
1899}
1900
1901/*
1902 * NB: If this function (or indeed the hash function which uses a sort of
1903 * coarser function than this one) is changed, ensure
1904 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on being
1905 * able to construct an SSL_SESSION that will collide with any existing session
1906 * with a matching session ID.
1907 */
1908static int
1909ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
1910{
1911 if (a->ssl_version != b->ssl_version)
1912 return (1);
1913 if (a->session_id_length != b->session_id_length)
1914 return (1);
1915 if (timingsafe_memcmp(a->session_id, b->session_id, a->session_id_length) != 0)
1916 return (1);
1917 return (0);
1918}
1919
1920/*
1921 * These wrapper functions should remain rather than redeclaring
1922 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1923 * variable. The reason is that the functions aren't static, they're exposed via
1924 * ssl.h.
1925 */
1926static unsigned long
1927ssl_session_LHASH_HASH(const void *arg)
1928{
1929 const SSL_SESSION *a = arg;
1930
1931 return ssl_session_hash(a);
1932}
1933
1934static int
1935ssl_session_LHASH_COMP(const void *arg1, const void *arg2)
1936{
1937 const SSL_SESSION *a = arg1;
1938 const SSL_SESSION *b = arg2;
1939
1940 return ssl_session_cmp(a, b);
1941}
1942
1943SSL_CTX *
1944SSL_CTX_new(const SSL_METHOD *meth)
1945{
1946 SSL_CTX *ret;
1947
1948 if (!OPENSSL_init_ssl(0, NULL)) {
1949 SSLerrorx(SSL_R_LIBRARY_BUG);
1950 return (NULL);
1951 }
1952
1953 if (meth == NULL) {
1954 SSLerrorx(SSL_R_NULL_SSL_METHOD_PASSED);
1955 return (NULL);
1956 }
1957
1958 if ((ret = calloc(1, sizeof(*ret))) == NULL) {
1959 SSLerrorx(ERR_R_MALLOC_FAILURE);
1960 return (NULL);
1961 }
1962
1963 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
1964 SSLerrorx(SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1965 goto err;
1966 }
1967
1968 ret->method = meth;
1969 ret->min_tls_version = meth->min_tls_version;
1970 ret->max_tls_version = meth->max_tls_version;
1971 ret->min_proto_version = 0;
1972 ret->max_proto_version = 0;
1973 ret->mode = SSL_MODE_AUTO_RETRY;
1974
1975 ret->cert_store = NULL;
1976 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
1977 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1978 ret->session_cache_head = NULL;
1979 ret->session_cache_tail = NULL;
1980
1981 /* We take the system default */
1982 ret->session_timeout = ssl_get_default_timeout();
1983
1984 ret->new_session_cb = 0;
1985 ret->remove_session_cb = 0;
1986 ret->get_session_cb = 0;
1987 ret->generate_session_id = 0;
1988
1989 memset((char *)&ret->stats, 0, sizeof(ret->stats));
1990
1991 ret->references = 1;
1992 ret->quiet_shutdown = 0;
1993
1994 ret->info_callback = NULL;
1995
1996 ret->app_verify_callback = 0;
1997 ret->app_verify_arg = NULL;
1998
1999 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
2000 ret->read_ahead = 0;
2001 ret->msg_callback = 0;
2002 ret->msg_callback_arg = NULL;
2003 ret->verify_mode = SSL_VERIFY_NONE;
2004 ret->sid_ctx_length = 0;
2005 ret->default_verify_callback = NULL;
2006
2007 if ((ret->cert = ssl_cert_new()) == NULL)
2008 goto err;
2009
2010 ret->default_passwd_callback = 0;
2011 ret->default_passwd_callback_userdata = NULL;
2012 ret->client_cert_cb = 0;
2013 ret->app_gen_cookie_cb = 0;
2014 ret->app_verify_cookie_cb = 0;
2015
2016 ret->sessions = lh_SSL_SESSION_new();
2017 if (ret->sessions == NULL)
2018 goto err;
2019 ret->cert_store = X509_STORE_new();
2020 if (ret->cert_store == NULL)
2021 goto err;
2022
2023 ssl_create_cipher_list(ret->method, &ret->cipher_list,
2024 NULL, SSL_DEFAULT_CIPHER_LIST, ret->cert);
2025 if (ret->cipher_list == NULL ||
2026 sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
2027 SSLerrorx(SSL_R_LIBRARY_HAS_NO_CIPHERS);
2028 goto err2;
2029 }
2030
2031 ret->param = X509_VERIFY_PARAM_new();
2032 if (!ret->param)
2033 goto err;
2034
2035 if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL)
2036 goto err;
2037
2038 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
2039
2040 ret->extra_certs = NULL;
2041
2042 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
2043
2044 ret->tlsext_servername_callback = 0;
2045 ret->tlsext_servername_arg = NULL;
2046
2047 /* Setup RFC4507 ticket keys */
2048 arc4random_buf(ret->tlsext_tick_key_name, 16);
2049 arc4random_buf(ret->tlsext_tick_hmac_key, 16);
2050 arc4random_buf(ret->tlsext_tick_aes_key, 16);
2051
2052 ret->tlsext_status_cb = 0;
2053 ret->tlsext_status_arg = NULL;
2054
2055#ifndef OPENSSL_NO_ENGINE
2056 ret->client_cert_engine = NULL;
2057#ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
2058#define eng_strx(x) #x
2059#define eng_str(x) eng_strx(x)
2060 /* Use specific client engine automatically... ignore errors */
2061 {
2062 ENGINE *eng;
2063 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2064 if (!eng) {
2065 ERR_clear_error();
2066 ENGINE_load_builtin_engines();
2067 eng = ENGINE_by_id(eng_str(
2068 OPENSSL_SSL_CLIENT_ENGINE_AUTO));
2069 }
2070 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
2071 ERR_clear_error();
2072 }
2073#endif
2074#endif
2075 /*
2076 * Default is to connect to non-RI servers. When RI is more widely
2077 * deployed might change this.
2078 */
2079 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
2080
2081 return (ret);
2082 err:
2083 SSLerrorx(ERR_R_MALLOC_FAILURE);
2084 err2:
2085 SSL_CTX_free(ret);
2086 return (NULL);
2087}
2088
2089void
2090SSL_CTX_free(SSL_CTX *ctx)
2091{
2092 int i;
2093
2094 if (ctx == NULL)
2095 return;
2096
2097 i = CRYPTO_add(&ctx->references, -1, CRYPTO_LOCK_SSL_CTX);
2098 if (i > 0)
2099 return;
2100
2101 X509_VERIFY_PARAM_free(ctx->param);
2102
2103 /*
2104 * Free internal session cache. However: the remove_cb() may reference
2105 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2106 * after the sessions were flushed.
2107 * As the ex_data handling routines might also touch the session cache,
2108 * the most secure solution seems to be: empty (flush) the cache, then
2109 * free ex_data, then finally free the cache.
2110 * (See ticket [openssl.org #212].)
2111 */
2112 if (ctx->sessions != NULL)
2113 SSL_CTX_flush_sessions(ctx, 0);
2114
2115 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ctx, &ctx->ex_data);
2116
2117 lh_SSL_SESSION_free(ctx->sessions);
2118
2119 X509_STORE_free(ctx->cert_store);
2120 sk_SSL_CIPHER_free(ctx->cipher_list);
2121 sk_SSL_CIPHER_free(ctx->cipher_list_tls13);
2122 ssl_cert_free(ctx->cert);
2123 sk_X509_NAME_pop_free(ctx->client_CA, X509_NAME_free);
2124 sk_X509_pop_free(ctx->extra_certs, X509_free);
2125
2126#ifndef OPENSSL_NO_SRTP
2127 if (ctx->srtp_profiles)
2128 sk_SRTP_PROTECTION_PROFILE_free(ctx->srtp_profiles);
2129#endif
2130
2131#ifndef OPENSSL_NO_ENGINE
2132 ENGINE_finish(ctx->client_cert_engine);
2133#endif
2134
2135 free(ctx->tlsext_ecpointformatlist);
2136 free(ctx->tlsext_supportedgroups);
2137
2138 free(ctx->alpn_client_proto_list);
2139
2140 free(ctx);
2141}
2142
2143int
2144SSL_CTX_up_ref(SSL_CTX *ctx)
2145{
2146 int refs = CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
2147 return ((refs > 1) ? 1 : 0);
2148}
2149
2150pem_password_cb *
2151SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx)
2152{
2153 return (ctx->default_passwd_callback);
2154}
2155
2156void
2157SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
2158{
2159 ctx->default_passwd_callback = cb;
2160}
2161
2162void *
2163SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx)
2164{
2165 return ctx->default_passwd_callback_userdata;
2166}
2167
2168void
2169SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
2170{
2171 ctx->default_passwd_callback_userdata = u;
2172}
2173
2174void
2175SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
2176 int (*cb)(X509_STORE_CTX *, void *), void *arg)
2177{
2178 ctx->app_verify_callback = cb;
2179 ctx->app_verify_arg = arg;
2180}
2181
2182void
2183SSL_CTX_set_verify(SSL_CTX *ctx, int mode, int (*cb)(int, X509_STORE_CTX *))
2184{
2185 ctx->verify_mode = mode;
2186 ctx->default_verify_callback = cb;
2187}
2188
2189void
2190SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
2191{
2192 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
2193}
2194
2195void
2196ssl_set_cert_masks(SSL_CERT *c, const SSL_CIPHER *cipher)
2197{
2198 unsigned long mask_a, mask_k;
2199 SSL_CERT_PKEY *cpk;
2200
2201 if (c == NULL)
2202 return;
2203
2204 mask_a = SSL_aNULL | SSL_aTLS1_3;
2205 mask_k = SSL_kECDHE | SSL_kTLS1_3;
2206
2207 if (c->dhe_params != NULL || c->dhe_params_cb != NULL ||
2208 c->dhe_params_auto != 0)
2209 mask_k |= SSL_kDHE;
2210
2211 cpk = &(c->pkeys[SSL_PKEY_ECC]);
2212 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2213 /* Key usage, if present, must allow signing. */
2214 if (X509_get_key_usage(cpk->x509) & X509v3_KU_DIGITAL_SIGNATURE)
2215 mask_a |= SSL_aECDSA;
2216 }
2217
2218 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2219 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2220 mask_k |= SSL_kGOST;
2221 mask_a |= SSL_aGOST01;
2222 }
2223
2224 cpk = &(c->pkeys[SSL_PKEY_RSA]);
2225 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2226 mask_a |= SSL_aRSA;
2227 mask_k |= SSL_kRSA;
2228 }
2229
2230 c->mask_k = mask_k;
2231 c->mask_a = mask_a;
2232 c->valid = 1;
2233}
2234
2235/* See if this handshake is using an ECC cipher suite. */
2236int
2237ssl_using_ecc_cipher(SSL *s)
2238{
2239 unsigned long alg_a, alg_k;
2240
2241 alg_a = s->s3->hs.cipher->algorithm_auth;
2242 alg_k = s->s3->hs.cipher->algorithm_mkey;
2243
2244 return s->session->tlsext_ecpointformatlist != NULL &&
2245 s->session->tlsext_ecpointformatlist_length > 0 &&
2246 ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA));
2247}
2248
2249int
2250ssl_check_srvr_ecc_cert_and_alg(SSL *s, X509 *x)
2251{
2252 const SSL_CIPHER *cs = s->s3->hs.cipher;
2253 unsigned long alg_a;
2254
2255 alg_a = cs->algorithm_auth;
2256
2257 if (alg_a & SSL_aECDSA) {
2258 /* Key usage, if present, must allow signing. */
2259 if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) {
2260 SSLerror(s, SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2261 return (0);
2262 }
2263 }
2264
2265 return (1);
2266}
2267
2268SSL_CERT_PKEY *
2269ssl_get_server_send_pkey(const SSL *s)
2270{
2271 unsigned long alg_a;
2272 SSL_CERT *c;
2273 int i;
2274
2275 c = s->cert;
2276 ssl_set_cert_masks(c, s->s3->hs.cipher);
2277
2278 alg_a = s->s3->hs.cipher->algorithm_auth;
2279
2280 if (alg_a & SSL_aECDSA) {
2281 i = SSL_PKEY_ECC;
2282 } else if (alg_a & SSL_aRSA) {
2283 i = SSL_PKEY_RSA;
2284 } else if (alg_a & SSL_aGOST01) {
2285 i = SSL_PKEY_GOST01;
2286 } else { /* if (alg_a & SSL_aNULL) */
2287 SSLerror(s, ERR_R_INTERNAL_ERROR);
2288 return (NULL);
2289 }
2290
2291 return (c->pkeys + i);
2292}
2293
2294EVP_PKEY *
2295ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher, const EVP_MD **pmd,
2296 const struct ssl_sigalg **sap)
2297{
2298 const struct ssl_sigalg *sigalg = NULL;
2299 EVP_PKEY *pkey = NULL;
2300 unsigned long alg_a;
2301 SSL_CERT *c;
2302 int idx = -1;
2303
2304 alg_a = cipher->algorithm_auth;
2305 c = s->cert;
2306
2307 if (alg_a & SSL_aRSA) {
2308 idx = SSL_PKEY_RSA;
2309 } else if ((alg_a & SSL_aECDSA) &&
2310 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2311 idx = SSL_PKEY_ECC;
2312 if (idx == -1) {
2313 SSLerror(s, ERR_R_INTERNAL_ERROR);
2314 return (NULL);
2315 }
2316
2317 pkey = c->pkeys[idx].privatekey;
2318 if ((sigalg = ssl_sigalg_select(s, pkey)) == NULL) {
2319 SSLerror(s, SSL_R_SIGNATURE_ALGORITHMS_ERROR);
2320 return (NULL);
2321 }
2322 *pmd = sigalg->md();
2323 *sap = sigalg;
2324
2325 return (pkey);
2326}
2327
2328size_t
2329ssl_dhe_params_auto_key_bits(SSL *s)
2330{
2331 SSL_CERT_PKEY *cpk;
2332 int key_bits;
2333
2334 if (s->cert->dhe_params_auto == 2) {
2335 key_bits = 1024;
2336 } else if (s->s3->hs.cipher->algorithm_auth & SSL_aNULL) {
2337 key_bits = 1024;
2338 if (s->s3->hs.cipher->strength_bits == 256)
2339 key_bits = 3072;
2340 } else {
2341 if ((cpk = ssl_get_server_send_pkey(s)) == NULL)
2342 return 0;
2343 if (cpk->privatekey == NULL ||
2344 EVP_PKEY_get0_RSA(cpk->privatekey) == NULL)
2345 return 0;
2346 if ((key_bits = EVP_PKEY_bits(cpk->privatekey)) <= 0)
2347 return 0;
2348 }
2349
2350 return key_bits;
2351}
2352
2353static int
2354ssl_should_update_external_cache(SSL *s, int mode)
2355{
2356 int cache_mode;
2357
2358 cache_mode = s->session_ctx->session_cache_mode;
2359
2360 /* Don't cache if mode says not to */
2361 if ((cache_mode & mode) == 0)
2362 return 0;
2363
2364 /* if it is not already cached, cache it */
2365 if (!s->hit)
2366 return 1;
2367
2368 /* If it's TLS 1.3, do it to match OpenSSL */
2369 if (s->s3->hs.negotiated_tls_version >= TLS1_3_VERSION)
2370 return 1;
2371
2372 return 0;
2373}
2374
2375static int
2376ssl_should_update_internal_cache(SSL *s, int mode)
2377{
2378 int cache_mode;
2379
2380 cache_mode = s->session_ctx->session_cache_mode;
2381
2382 /* Don't cache if mode says not to */
2383 if ((cache_mode & mode) == 0)
2384 return 0;
2385
2386 /* If it is already cached, don't cache it again */
2387 if (s->hit)
2388 return 0;
2389
2390 if ((cache_mode & SSL_SESS_CACHE_NO_INTERNAL_STORE) != 0)
2391 return 0;
2392
2393 /* If we are lesser than TLS 1.3, Cache it. */
2394 if (s->s3->hs.negotiated_tls_version < TLS1_3_VERSION)
2395 return 1;
2396
2397 /* Below this we consider TLS 1.3 or later */
2398
2399 /* If it's not a server, add it? OpenSSL does this. */
2400 if (!s->server)
2401 return 1;
2402
2403 /* XXX if we support early data / PSK need to add */
2404
2405 /*
2406 * If we have the remove session callback, we will want
2407 * to know about this even if it's a stateless ticket
2408 * from 1.3 so we can know when it is removed.
2409 */
2410 if (s->session_ctx->remove_session_cb != NULL)
2411 return 1;
2412
2413 /* If we have set OP_NO_TICKET, cache it. */
2414 if ((s->options & SSL_OP_NO_TICKET) != 0)
2415 return 1;
2416
2417 /* Otherwise do not cache */
2418 return 0;
2419}
2420
2421void
2422ssl_update_cache(SSL *s, int mode)
2423{
2424 int cache_mode, do_callback;
2425
2426 if (s->session->session_id_length == 0)
2427 return;
2428
2429 cache_mode = s->session_ctx->session_cache_mode;
2430 do_callback = ssl_should_update_external_cache(s, mode);
2431
2432 if (ssl_should_update_internal_cache(s, mode)) {
2433 /*
2434 * XXX should we fail if the add to the internal cache
2435 * fails? OpenSSL doesn't care..
2436 */
2437 (void) SSL_CTX_add_session(s->session_ctx, s->session);
2438 }
2439
2440 /*
2441 * Update the "external cache" by calling the new session
2442 * callback if present, even with TLS 1.3 without early data
2443 * "because some application just want to know about the
2444 * creation of a session and aren't doing a full cache".
2445 * Apparently, if they are doing a full cache, they'll have
2446 * some fun, but we endeavour to give application writers the
2447 * same glorious experience they expect from OpenSSL which
2448 * does it this way.
2449 */
2450 if (do_callback && s->session_ctx->new_session_cb != NULL) {
2451 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION);
2452 if (!s->session_ctx->new_session_cb(s, s->session))
2453 SSL_SESSION_free(s->session);
2454 }
2455
2456 /* Auto flush every 255 connections. */
2457 if (!(cache_mode & SSL_SESS_CACHE_NO_AUTO_CLEAR) &&
2458 (cache_mode & mode) != 0) {
2459 int connections;
2460 if (mode & SSL_SESS_CACHE_CLIENT)
2461 connections = s->session_ctx->stats.sess_connect_good;
2462 else
2463 connections = s->session_ctx->stats.sess_accept_good;
2464 if ((connections & 0xff) == 0xff)
2465 SSL_CTX_flush_sessions(s->session_ctx, time(NULL));
2466 }
2467}
2468
2469const SSL_METHOD *
2470SSL_get_ssl_method(SSL *s)
2471{
2472 return (s->method);
2473}
2474
2475int
2476SSL_set_ssl_method(SSL *s, const SSL_METHOD *method)
2477{
2478 int (*handshake_func)(SSL *) = NULL;
2479 int ret = 1;
2480
2481 if (s->method == method)
2482 return (ret);
2483
2484 if (s->handshake_func == s->method->ssl_connect)
2485 handshake_func = method->ssl_connect;
2486 else if (s->handshake_func == s->method->ssl_accept)
2487 handshake_func = method->ssl_accept;
2488
2489 if (s->method->version == method->version) {
2490 s->method = method;
2491 } else {
2492 s->method->ssl_free(s);
2493 s->method = method;
2494 ret = s->method->ssl_new(s);
2495 }
2496 s->handshake_func = handshake_func;
2497
2498 return (ret);
2499}
2500
2501int
2502SSL_get_error(const SSL *s, int i)
2503{
2504 unsigned long l;
2505 int reason;
2506 BIO *bio;
2507
2508 if (i > 0)
2509 return (SSL_ERROR_NONE);
2510
2511 /*
2512 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake
2513 * etc, where we do encode the error.
2514 */
2515 if ((l = ERR_peek_error()) != 0) {
2516 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2517 return (SSL_ERROR_SYSCALL);
2518 else
2519 return (SSL_ERROR_SSL);
2520 }
2521
2522 if (SSL_want_read(s)) {
2523 bio = SSL_get_rbio(s);
2524 if (BIO_should_read(bio)) {
2525 return (SSL_ERROR_WANT_READ);
2526 } else if (BIO_should_write(bio)) {
2527 /*
2528 * This one doesn't make too much sense... We never
2529 * try to write to the rbio, and an application
2530 * program where rbio and wbio are separate couldn't
2531 * even know what it should wait for. However if we
2532 * ever set s->rwstate incorrectly (so that we have
2533 * SSL_want_read(s) instead of SSL_want_write(s))
2534 * and rbio and wbio *are* the same, this test works
2535 * around that bug; so it might be safer to keep it.
2536 */
2537 return (SSL_ERROR_WANT_WRITE);
2538 } else if (BIO_should_io_special(bio)) {
2539 reason = BIO_get_retry_reason(bio);
2540 if (reason == BIO_RR_CONNECT)
2541 return (SSL_ERROR_WANT_CONNECT);
2542 else if (reason == BIO_RR_ACCEPT)
2543 return (SSL_ERROR_WANT_ACCEPT);
2544 else
2545 return (SSL_ERROR_SYSCALL); /* unknown */
2546 }
2547 }
2548
2549 if (SSL_want_write(s)) {
2550 bio = SSL_get_wbio(s);
2551 if (BIO_should_write(bio)) {
2552 return (SSL_ERROR_WANT_WRITE);
2553 } else if (BIO_should_read(bio)) {
2554 /*
2555 * See above (SSL_want_read(s) with
2556 * BIO_should_write(bio))
2557 */
2558 return (SSL_ERROR_WANT_READ);
2559 } else if (BIO_should_io_special(bio)) {
2560 reason = BIO_get_retry_reason(bio);
2561 if (reason == BIO_RR_CONNECT)
2562 return (SSL_ERROR_WANT_CONNECT);
2563 else if (reason == BIO_RR_ACCEPT)
2564 return (SSL_ERROR_WANT_ACCEPT);
2565 else
2566 return (SSL_ERROR_SYSCALL);
2567 }
2568 }
2569
2570 if (SSL_want_x509_lookup(s))
2571 return (SSL_ERROR_WANT_X509_LOOKUP);
2572
2573 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2574 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2575 return (SSL_ERROR_ZERO_RETURN);
2576
2577 return (SSL_ERROR_SYSCALL);
2578}
2579
2580int
2581SSL_CTX_set_quic_method(SSL_CTX *ctx, const SSL_QUIC_METHOD *quic_method)
2582{
2583 if (ctx->method->dtls)
2584 return 0;
2585
2586 ctx->quic_method = quic_method;
2587
2588 return 1;
2589}
2590
2591int
2592SSL_set_quic_method(SSL *ssl, const SSL_QUIC_METHOD *quic_method)
2593{
2594 if (ssl->method->dtls)
2595 return 0;
2596
2597 ssl->quic_method = quic_method;
2598
2599 return 1;
2600}
2601
2602size_t
2603SSL_quic_max_handshake_flight_len(const SSL *ssl,
2604 enum ssl_encryption_level_t level)
2605{
2606 size_t flight_len;
2607
2608 /* Limit flights to 16K when there are no large certificate messages. */
2609 flight_len = 16384;
2610
2611 switch (level) {
2612 case ssl_encryption_initial:
2613 return flight_len;
2614
2615 case ssl_encryption_early_data:
2616 /* QUIC does not send EndOfEarlyData. */
2617 return 0;
2618
2619 case ssl_encryption_handshake:
2620 if (ssl->server) {
2621 /*
2622 * Servers may receive Certificate message if configured
2623 * to request client certificates.
2624 */
2625 if ((SSL_get_verify_mode(ssl) & SSL_VERIFY_PEER) != 0 &&
2626 ssl->max_cert_list > flight_len)
2627 flight_len = ssl->max_cert_list;
2628 } else {
2629 /*
2630 * Clients may receive both Certificate message and a
2631 * CertificateRequest message.
2632 */
2633 if (ssl->max_cert_list * 2 > flight_len)
2634 flight_len = ssl->max_cert_list * 2;
2635 }
2636 return flight_len;
2637 case ssl_encryption_application:
2638 /*
2639 * Note there is not actually a bound on the number of
2640 * NewSessionTickets one may send in a row. This level may need
2641 * more involved flow control.
2642 */
2643 return flight_len;
2644 }
2645
2646 return 0;
2647}
2648
2649enum ssl_encryption_level_t
2650SSL_quic_read_level(const SSL *ssl)
2651{
2652 return ssl->s3->hs.tls13.quic_read_level;
2653}
2654
2655enum ssl_encryption_level_t
2656SSL_quic_write_level(const SSL *ssl)
2657{
2658 return ssl->s3->hs.tls13.quic_write_level;
2659}
2660
2661int
2662SSL_provide_quic_data(SSL *ssl, enum ssl_encryption_level_t level,
2663 const uint8_t *data, size_t len)
2664{
2665 if (!SSL_is_quic(ssl)) {
2666 SSLerror(ssl, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2667 return 0;
2668 }
2669
2670 if (level != SSL_quic_read_level(ssl)) {
2671 SSLerror(ssl, SSL_R_WRONG_ENCRYPTION_LEVEL_RECEIVED);
2672 return 0;
2673 }
2674
2675 if (ssl->s3->hs.tls13.quic_read_buffer == NULL) {
2676 ssl->s3->hs.tls13.quic_read_buffer = tls_buffer_new(0);
2677 if (ssl->s3->hs.tls13.quic_read_buffer == NULL) {
2678 SSLerror(ssl, ERR_R_MALLOC_FAILURE);
2679 return 0;
2680 }
2681 }
2682
2683 /* XXX - note that this does not currently downsize. */
2684 tls_buffer_set_capacity_limit(ssl->s3->hs.tls13.quic_read_buffer,
2685 SSL_quic_max_handshake_flight_len(ssl, level));
2686
2687 /*
2688 * XXX - an append that fails due to exceeding capacity should set
2689 * SSL_R_EXCESSIVE_MESSAGE_SIZE.
2690 */
2691 return tls_buffer_append(ssl->s3->hs.tls13.quic_read_buffer, data, len);
2692}
2693
2694int
2695SSL_process_quic_post_handshake(SSL *ssl)
2696{
2697 /* XXX - this needs to run PHH received. */
2698 return 1;
2699}
2700
2701int
2702SSL_do_handshake(SSL *s)
2703{
2704 if (s->handshake_func == NULL) {
2705 SSLerror(s, SSL_R_CONNECTION_TYPE_NOT_SET);
2706 return (-1);
2707 }
2708
2709 s->method->ssl_renegotiate_check(s);
2710
2711 if (!SSL_in_init(s) && !SSL_in_before(s))
2712 return 1;
2713
2714 return s->handshake_func(s);
2715}
2716
2717/*
2718 * For the next 2 functions, SSL_clear() sets shutdown and so
2719 * one of these calls will reset it
2720 */
2721void
2722SSL_set_accept_state(SSL *s)
2723{
2724 s->server = 1;
2725 s->shutdown = 0;
2726 s->s3->hs.state = SSL_ST_ACCEPT|SSL_ST_BEFORE;
2727 s->handshake_func = s->method->ssl_accept;
2728 ssl_clear_cipher_state(s);
2729}
2730
2731void
2732SSL_set_connect_state(SSL *s)
2733{
2734 s->server = 0;
2735 s->shutdown = 0;
2736 s->s3->hs.state = SSL_ST_CONNECT|SSL_ST_BEFORE;
2737 s->handshake_func = s->method->ssl_connect;
2738 ssl_clear_cipher_state(s);
2739}
2740
2741int
2742ssl_undefined_function(SSL *s)
2743{
2744 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2745 return (0);
2746}
2747
2748int
2749ssl_undefined_void_function(void)
2750{
2751 SSLerrorx(ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2752 return (0);
2753}
2754
2755int
2756ssl_undefined_const_function(const SSL *s)
2757{
2758 SSLerror(s, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2759 return (0);
2760}
2761
2762const char *
2763ssl_version_string(int ver)
2764{
2765 switch (ver) {
2766 case TLS1_VERSION:
2767 return (SSL_TXT_TLSV1);
2768 case TLS1_1_VERSION:
2769 return (SSL_TXT_TLSV1_1);
2770 case TLS1_2_VERSION:
2771 return (SSL_TXT_TLSV1_2);
2772 case TLS1_3_VERSION:
2773 return (SSL_TXT_TLSV1_3);
2774 case DTLS1_VERSION:
2775 return (SSL_TXT_DTLS1);
2776 case DTLS1_2_VERSION:
2777 return (SSL_TXT_DTLS1_2);
2778 default:
2779 return ("unknown");
2780 }
2781}
2782
2783const char *
2784SSL_get_version(const SSL *s)
2785{
2786 return ssl_version_string(s->version);
2787}
2788
2789SSL *
2790SSL_dup(SSL *s)
2791{
2792 STACK_OF(X509_NAME) *sk;
2793 X509_NAME *xn;
2794 SSL *ret;
2795 int i;
2796
2797 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2798 goto err;
2799
2800 ret->version = s->version;
2801 ret->method = s->method;
2802
2803 if (s->session != NULL) {
2804 if (!SSL_copy_session_id(ret, s))
2805 goto err;
2806 } else {
2807 /*
2808 * No session has been established yet, so we have to expect
2809 * that s->cert or ret->cert will be changed later --
2810 * they should not both point to the same object,
2811 * and thus we can't use SSL_copy_session_id.
2812 */
2813
2814 ret->method->ssl_free(ret);
2815 ret->method = s->method;
2816 ret->method->ssl_new(ret);
2817
2818 ssl_cert_free(ret->cert);
2819 if ((ret->cert = ssl_cert_dup(s->cert)) == NULL)
2820 goto err;
2821
2822 if (!SSL_set_session_id_context(ret, s->sid_ctx,
2823 s->sid_ctx_length))
2824 goto err;
2825 }
2826
2827 ret->options = s->options;
2828 ret->mode = s->mode;
2829 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
2830 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
2831 ret->msg_callback = s->msg_callback;
2832 ret->msg_callback_arg = s->msg_callback_arg;
2833 SSL_set_verify(ret, SSL_get_verify_mode(s),
2834 SSL_get_verify_callback(s));
2835 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
2836 ret->generate_session_id = s->generate_session_id;
2837
2838 SSL_set_info_callback(ret, SSL_get_info_callback(s));
2839
2840 ret->debug = s->debug;
2841
2842 /* copy app data, a little dangerous perhaps */
2843 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL,
2844 &ret->ex_data, &s->ex_data))
2845 goto err;
2846
2847 /* setup rbio, and wbio */
2848 if (s->rbio != NULL) {
2849 if (!BIO_dup_state(s->rbio,(char *)&ret->rbio))
2850 goto err;
2851 }
2852 if (s->wbio != NULL) {
2853 if (s->wbio != s->rbio) {
2854 if (!BIO_dup_state(s->wbio,(char *)&ret->wbio))
2855 goto err;
2856 } else
2857 ret->wbio = ret->rbio;
2858 }
2859 ret->rwstate = s->rwstate;
2860 ret->in_handshake = s->in_handshake;
2861 ret->handshake_func = s->handshake_func;
2862 ret->server = s->server;
2863 ret->renegotiate = s->renegotiate;
2864 ret->new_session = s->new_session;
2865 ret->quiet_shutdown = s->quiet_shutdown;
2866 ret->shutdown = s->shutdown;
2867 /* SSL_dup does not really work at any state, though */
2868 ret->s3->hs.state = s->s3->hs.state;
2869 ret->rstate = s->rstate;
2870
2871 /*
2872 * Would have to copy ret->init_buf, ret->init_msg, ret->init_num,
2873 * ret->init_off
2874 */
2875 ret->init_num = 0;
2876
2877 ret->hit = s->hit;
2878
2879 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2880
2881 if (s->cipher_list != NULL) {
2882 if ((ret->cipher_list =
2883 sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2884 goto err;
2885 }
2886 if (s->cipher_list_tls13 != NULL) {
2887 if ((ret->cipher_list_tls13 =
2888 sk_SSL_CIPHER_dup(s->cipher_list_tls13)) == NULL)
2889 goto err;
2890 }
2891
2892 /* Dup the client_CA list */
2893 if (s->client_CA != NULL) {
2894 if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL) goto err;
2895 ret->client_CA = sk;
2896 for (i = 0; i < sk_X509_NAME_num(sk); i++) {
2897 xn = sk_X509_NAME_value(sk, i);
2898 if (sk_X509_NAME_set(sk, i,
2899 X509_NAME_dup(xn)) == NULL) {
2900 X509_NAME_free(xn);
2901 goto err;
2902 }
2903 }
2904 }
2905
2906 return ret;
2907 err:
2908 SSL_free(ret);
2909 return NULL;
2910}
2911
2912void
2913ssl_clear_cipher_state(SSL *s)
2914{
2915 tls12_record_layer_clear_read_state(s->rl);
2916 tls12_record_layer_clear_write_state(s->rl);
2917}
2918
2919void
2920ssl_info_callback(const SSL *s, int type, int value)
2921{
2922 ssl_info_callback_fn *cb;
2923
2924 if ((cb = s->info_callback) == NULL)
2925 cb = s->ctx->info_callback;
2926 if (cb != NULL)
2927 cb(s, type, value);
2928}
2929
2930void
2931ssl_msg_callback(SSL *s, int is_write, int content_type,
2932 const void *msg_buf, size_t msg_len)
2933{
2934 if (s->msg_callback == NULL)
2935 return;
2936
2937 s->msg_callback(is_write, s->version, content_type,
2938 msg_buf, msg_len, s, s->msg_callback_arg);
2939}
2940
2941void
2942ssl_msg_callback_cbs(SSL *s, int is_write, int content_type, CBS *cbs)
2943{
2944 ssl_msg_callback(s, is_write, content_type, CBS_data(cbs), CBS_len(cbs));
2945}
2946
2947/* Fix this function so that it takes an optional type parameter */
2948X509 *
2949SSL_get_certificate(const SSL *s)
2950{
2951 return (s->cert->key->x509);
2952}
2953
2954/* Fix this function so that it takes an optional type parameter */
2955EVP_PKEY *
2956SSL_get_privatekey(const SSL *s)
2957{
2958 return (s->cert->key->privatekey);
2959}
2960
2961const SSL_CIPHER *
2962SSL_get_current_cipher(const SSL *s)
2963{
2964 if ((s->session != NULL) && (s->session->cipher != NULL))
2965 return (s->session->cipher);
2966 return (NULL);
2967}
2968const void *
2969SSL_get_current_compression(SSL *s)
2970{
2971 return (NULL);
2972}
2973
2974const void *
2975SSL_get_current_expansion(SSL *s)
2976{
2977 return (NULL);
2978}
2979
2980size_t
2981SSL_get_client_random(const SSL *s, unsigned char *out, size_t max_out)
2982{
2983 size_t len = sizeof(s->s3->client_random);
2984
2985 if (out == NULL)
2986 return len;
2987
2988 if (len > max_out)
2989 len = max_out;
2990
2991 memcpy(out, s->s3->client_random, len);
2992
2993 return len;
2994}
2995
2996size_t
2997SSL_get_server_random(const SSL *s, unsigned char *out, size_t max_out)
2998{
2999 size_t len = sizeof(s->s3->server_random);
3000
3001 if (out == NULL)
3002 return len;
3003
3004 if (len > max_out)
3005 len = max_out;
3006
3007 memcpy(out, s->s3->server_random, len);
3008
3009 return len;
3010}
3011
3012int
3013ssl_init_wbio_buffer(SSL *s, int push)
3014{
3015 BIO *bbio;
3016
3017 if (s->bbio == NULL) {
3018 bbio = BIO_new(BIO_f_buffer());
3019 if (bbio == NULL)
3020 return (0);
3021 s->bbio = bbio;
3022 } else {
3023 bbio = s->bbio;
3024 if (s->bbio == s->wbio)
3025 s->wbio = BIO_pop(s->wbio);
3026 }
3027 (void)BIO_reset(bbio);
3028/* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
3029 if (!BIO_set_read_buffer_size(bbio, 1)) {
3030 SSLerror(s, ERR_R_BUF_LIB);
3031 return (0);
3032 }
3033 if (push) {
3034 if (s->wbio != bbio)
3035 s->wbio = BIO_push(bbio, s->wbio);
3036 } else {
3037 if (s->wbio == bbio)
3038 s->wbio = BIO_pop(bbio);
3039 }
3040 return (1);
3041}
3042
3043void
3044ssl_free_wbio_buffer(SSL *s)
3045{
3046 if (s == NULL)
3047 return;
3048
3049 if (s->bbio == NULL)
3050 return;
3051
3052 if (s->bbio == s->wbio) {
3053 /* remove buffering */
3054 s->wbio = BIO_pop(s->wbio);
3055 }
3056 BIO_free(s->bbio);
3057 s->bbio = NULL;
3058}
3059
3060void
3061SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
3062{
3063 ctx->quiet_shutdown = mode;
3064}
3065
3066int
3067SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
3068{
3069 return (ctx->quiet_shutdown);
3070}
3071
3072void
3073SSL_set_quiet_shutdown(SSL *s, int mode)
3074{
3075 s->quiet_shutdown = mode;
3076}
3077
3078int
3079SSL_get_quiet_shutdown(const SSL *s)
3080{
3081 return (s->quiet_shutdown);
3082}
3083
3084void
3085SSL_set_shutdown(SSL *s, int mode)
3086{
3087 s->shutdown = mode;
3088}
3089
3090int
3091SSL_get_shutdown(const SSL *s)
3092{
3093 return (s->shutdown);
3094}
3095
3096int
3097SSL_version(const SSL *s)
3098{
3099 return (s->version);
3100}
3101
3102SSL_CTX *
3103SSL_get_SSL_CTX(const SSL *ssl)
3104{
3105 return (ssl->ctx);
3106}
3107
3108SSL_CTX *
3109SSL_set_SSL_CTX(SSL *ssl, SSL_CTX* ctx)
3110{
3111 SSL_CERT *new_cert;
3112
3113 if (ctx == NULL)
3114 ctx = ssl->initial_ctx;
3115 if (ssl->ctx == ctx)
3116 return (ssl->ctx);
3117
3118 if ((new_cert = ssl_cert_dup(ctx->cert)) == NULL)
3119 return NULL;
3120 ssl_cert_free(ssl->cert);
3121 ssl->cert = new_cert;
3122
3123 SSL_CTX_up_ref(ctx);
3124 SSL_CTX_free(ssl->ctx); /* decrement reference count */
3125 ssl->ctx = ctx;
3126
3127 return (ssl->ctx);
3128}
3129
3130int
3131SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
3132{
3133 return (X509_STORE_set_default_paths(ctx->cert_store));
3134}
3135
3136int
3137SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
3138 const char *CApath)
3139{
3140 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath));
3141}
3142
3143int
3144SSL_CTX_load_verify_mem(SSL_CTX *ctx, void *buf, int len)
3145{
3146 return (X509_STORE_load_mem(ctx->cert_store, buf, len));
3147}
3148
3149void
3150SSL_set_info_callback(SSL *ssl, void (*cb)(const SSL *ssl, int type, int val))
3151{
3152 ssl->info_callback = cb;
3153}
3154
3155void (*SSL_get_info_callback(const SSL *ssl))(const SSL *ssl, int type, int val)
3156{
3157 return (ssl->info_callback);
3158}
3159
3160int
3161SSL_state(const SSL *ssl)
3162{
3163 return (ssl->s3->hs.state);
3164}
3165
3166void
3167SSL_set_state(SSL *ssl, int state)
3168{
3169 ssl->s3->hs.state = state;
3170}
3171
3172void
3173SSL_set_verify_result(SSL *ssl, long arg)
3174{
3175 ssl->verify_result = arg;
3176}
3177
3178long
3179SSL_get_verify_result(const SSL *ssl)
3180{
3181 return (ssl->verify_result);
3182}
3183
3184int
3185SSL_verify_client_post_handshake(SSL *ssl)
3186{
3187 return 0;
3188}
3189
3190void
3191SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val)
3192{
3193 return;
3194}
3195
3196void
3197SSL_set_post_handshake_auth(SSL *ssl, int val)
3198{
3199 return;
3200}
3201
3202int
3203SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
3204 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
3205{
3206 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
3207 new_func, dup_func, free_func));
3208}
3209
3210int
3211SSL_set_ex_data(SSL *s, int idx, void *arg)
3212{
3213 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
3214}
3215
3216void *
3217SSL_get_ex_data(const SSL *s, int idx)
3218{
3219 return (CRYPTO_get_ex_data(&s->ex_data, idx));
3220}
3221
3222int
3223SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
3224 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
3225{
3226 return (CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
3227 new_func, dup_func, free_func));
3228}
3229
3230int
3231SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
3232{
3233 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
3234}
3235
3236void *
3237SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
3238{
3239 return (CRYPTO_get_ex_data(&s->ex_data, idx));
3240}
3241
3242int
3243ssl_ok(SSL *s)
3244{
3245 return (1);
3246}
3247
3248X509_STORE *
3249SSL_CTX_get_cert_store(const SSL_CTX *ctx)
3250{
3251 return (ctx->cert_store);
3252}
3253
3254void
3255SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
3256{
3257 X509_STORE_free(ctx->cert_store);
3258 ctx->cert_store = store;
3259}
3260
3261X509 *
3262SSL_CTX_get0_certificate(const SSL_CTX *ctx)
3263{
3264 if (ctx->cert == NULL)
3265 return NULL;
3266
3267 return ctx->cert->key->x509;
3268}
3269
3270EVP_PKEY *
3271SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
3272{
3273 if (ctx->cert == NULL)
3274 return NULL;
3275
3276 return ctx->cert->key->privatekey;
3277}
3278
3279int
3280SSL_want(const SSL *s)
3281{
3282 return (s->rwstate);
3283}
3284
3285void
3286SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb)(SSL *ssl, int is_export,
3287 int keylength))
3288{
3289 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3290}
3291
3292void
3293SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb)(SSL *ssl, int is_export,
3294 int keylength))
3295{
3296 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB,(void (*)(void))cb);
3297}
3298
3299void
3300SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, DH *(*dh)(SSL *ssl, int is_export,
3301 int keylength))
3302{
3303 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3304}
3305
3306void
3307SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh)(SSL *ssl, int is_export,
3308 int keylength))
3309{
3310 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB,(void (*)(void))dh);
3311}
3312
3313void
3314SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx, EC_KEY *(*ecdh)(SSL *ssl,
3315 int is_export, int keylength))
3316{
3317 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB,
3318 (void (*)(void))ecdh);
3319}
3320
3321void
3322SSL_set_tmp_ecdh_callback(SSL *ssl, EC_KEY *(*ecdh)(SSL *ssl, int is_export,
3323 int keylength))
3324{
3325 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB,(void (*)(void))ecdh);
3326}
3327
3328
3329void
3330SSL_CTX_set_msg_callback(SSL_CTX *ctx, void (*cb)(int write_p, int version,
3331 int content_type, const void *buf, size_t len, SSL *ssl, void *arg))
3332{
3333 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK,
3334 (void (*)(void))cb);
3335}
3336
3337void
3338SSL_set_msg_callback(SSL *ssl, void (*cb)(int write_p, int version,
3339 int content_type, const void *buf, size_t len, SSL *ssl, void *arg))
3340{
3341 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3342}
3343
3344void
3345SSL_set_debug(SSL *s, int debug)
3346{
3347 s->debug = debug;
3348}
3349
3350int
3351SSL_cache_hit(SSL *s)
3352{
3353 return (s->hit);
3354}
3355
3356int
3357SSL_CTX_get_min_proto_version(SSL_CTX *ctx)
3358{
3359 return ctx->min_proto_version;
3360}
3361
3362int
3363SSL_CTX_set_min_proto_version(SSL_CTX *ctx, uint16_t version)
3364{
3365 return ssl_version_set_min(ctx->method, version,
3366 ctx->max_tls_version, &ctx->min_tls_version,
3367 &ctx->min_proto_version);
3368}
3369
3370int
3371SSL_CTX_get_max_proto_version(SSL_CTX *ctx)
3372{
3373 return ctx->max_proto_version;
3374}
3375
3376int
3377SSL_CTX_set_max_proto_version(SSL_CTX *ctx, uint16_t version)
3378{
3379 return ssl_version_set_max(ctx->method, version,
3380 ctx->min_tls_version, &ctx->max_tls_version,
3381 &ctx->max_proto_version);
3382}
3383
3384int
3385SSL_get_min_proto_version(SSL *ssl)
3386{
3387 return ssl->min_proto_version;
3388}
3389
3390int
3391SSL_set_min_proto_version(SSL *ssl, uint16_t version)
3392{
3393 return ssl_version_set_min(ssl->method, version,
3394 ssl->max_tls_version, &ssl->min_tls_version,
3395 &ssl->min_proto_version);
3396}
3397int
3398SSL_get_max_proto_version(SSL *ssl)
3399{
3400 return ssl->max_proto_version;
3401}
3402
3403int
3404SSL_set_max_proto_version(SSL *ssl, uint16_t version)
3405{
3406 return ssl_version_set_max(ssl->method, version,
3407 ssl->min_tls_version, &ssl->max_tls_version,
3408 &ssl->max_proto_version);
3409}
3410
3411const SSL_METHOD *
3412SSL_CTX_get_ssl_method(const SSL_CTX *ctx)
3413{
3414 return ctx->method;
3415}
3416
3417int
3418SSL_CTX_get_security_level(const SSL_CTX *ctx)
3419{
3420 return ctx->cert->security_level;
3421}
3422
3423void
3424SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
3425{
3426 ctx->cert->security_level = level;
3427}
3428
3429int
3430SSL_get_security_level(const SSL *ssl)
3431{
3432 return ssl->cert->security_level;
3433}
3434
3435void
3436SSL_set_security_level(SSL *ssl, int level)
3437{
3438 ssl->cert->security_level = level;
3439}
3440
3441int
3442SSL_is_quic(const SSL *ssl)
3443{
3444 return ssl->quic_method != NULL;
3445}
3446
3447int
3448SSL_set_quic_transport_params(SSL *ssl, const uint8_t *params,
3449 size_t params_len)
3450{
3451 freezero(ssl->quic_transport_params,
3452 ssl->quic_transport_params_len);
3453 ssl->quic_transport_params = NULL;
3454 ssl->quic_transport_params_len = 0;
3455
3456 if ((ssl->quic_transport_params = malloc(params_len)) == NULL)
3457 return 0;
3458
3459 memcpy(ssl->quic_transport_params, params, params_len);
3460 ssl->quic_transport_params_len = params_len;
3461
3462 return 1;
3463}
3464
3465void
3466SSL_get_peer_quic_transport_params(const SSL *ssl, const uint8_t **out_params,
3467 size_t *out_params_len)
3468{
3469 *out_params = ssl->s3->peer_quic_transport_params;
3470 *out_params_len = ssl->s3->peer_quic_transport_params_len;
3471}
3472
3473void
3474SSL_set_quic_use_legacy_codepoint(SSL *ssl, int use_legacy)
3475{
3476 /* Not supported. */
3477}
3478
3479static int
3480ssl_cipher_id_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_)
3481{
3482 SSL_CIPHER const *a = a_;
3483 SSL_CIPHER const *b = b_;
3484 return ssl_cipher_id_cmp(a, b);
3485}
3486
3487SSL_CIPHER *
3488OBJ_bsearch_ssl_cipher_id(SSL_CIPHER *key, SSL_CIPHER const *base, int num)
3489{
3490 return (SSL_CIPHER *)OBJ_bsearch_(key, base, num, sizeof(SSL_CIPHER),
3491 ssl_cipher_id_cmp_BSEARCH_CMP_FN);
3492}
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2026-02-11 16:56:45 +0000