2 * ! \file ssl/ssl_lib.c \brief Version independent SSL functions.
4 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
25 * Redistribution and use in source and binary forms, with or without
26 * modification, are permitted provided that the following conditions
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)"
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
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.]
60 /* ====================================================================
61 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
63 * Redistribution and use in source and binary forms, with or without
64 * modification, are permitted provided that the following conditions
67 * 1. Redistributions of source code must retain the above copyright
68 * notice, this list of conditions and the following disclaimer.
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
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/)"
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.
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.
89 * 6. Redistributions of any form whatsoever must retain the following
91 * "This product includes software developed by the OpenSSL Project
92 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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 * ====================================================================
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).
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.
118 /* ====================================================================
119 * Copyright 2005 Nokia. All rights reserved.
121 * The portions of the attached software ("Contribution") is developed by
122 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
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.
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.
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.
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
149 #include "ssl_locl.h"
150 #include <openssl/objects.h>
151 #include <openssl/lhash.h>
152 #include <openssl/x509v3.h>
153 #include <openssl/rand.h>
154 #include <openssl/ocsp.h>
155 #ifndef OPENSSL_NO_DH
156 # include <openssl/dh.h>
158 #ifndef OPENSSL_NO_ENGINE
159 # include <openssl/engine.h>
161 #include <openssl/async.h>
163 const char SSL_version_str[] = OPENSSL_VERSION_TEXT;
165 SSL3_ENC_METHOD ssl3_undef_enc_method = {
167 * evil casts, but these functions are only called if there's a library
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,
190 struct ssl_async_args {
196 static void clear_ciphers(SSL *s)
198 /* clear the current cipher */
199 ssl_clear_cipher_ctx(s);
200 ssl_clear_hash_ctx(&s->read_hash);
201 ssl_clear_hash_ctx(&s->write_hash);
204 int SSL_clear(SSL *s)
206 if (s->method == NULL) {
207 SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED);
211 if (ssl_clear_bad_session(s)) {
212 SSL_SESSION_free(s->session);
220 if (s->renegotiate) {
221 SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR);
225 ossl_statem_clear(s);
227 s->version = s->method->version;
228 s->client_version = s->version;
229 s->rwstate = SSL_NOTHING;
231 BUF_MEM_free(s->init_buf);
237 * Check to see if we were changed into a different method, if so, revert
238 * back if we are not doing session-id reuse.
240 if (!ossl_statem_get_in_handshake(s) && (s->session == NULL)
241 && (s->method != s->ctx->method)) {
242 s->method->ssl_free(s);
243 s->method = s->ctx->method;
244 if (!s->method->ssl_new(s))
247 s->method->ssl_clear(s);
249 RECORD_LAYER_clear(&s->rlayer);
254 /** Used to change an SSL_CTXs default SSL method type */
255 int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
257 STACK_OF(SSL_CIPHER) *sk;
261 sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list),
262 &(ctx->cipher_list_by_id),
263 SSL_DEFAULT_CIPHER_LIST, ctx->cert);
264 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
265 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,
266 SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
272 SSL *SSL_new(SSL_CTX *ctx)
277 SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);
280 if (ctx->method == NULL) {
281 SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
285 s = OPENSSL_zalloc(sizeof(*s));
289 RECORD_LAYER_init(&s->rlayer, s);
291 s->options = ctx->options;
293 s->max_cert_list = ctx->max_cert_list;
297 * Earlier library versions used to copy the pointer to the CERT, not
298 * its contents; only when setting new parameters for the per-SSL
299 * copy, ssl_cert_new would be called (and the direct reference to
300 * the per-SSL_CTX settings would be lost, but those still were
301 * indirectly accessed for various purposes, and for that reason they
302 * used to be known as s->ctx->default_cert). Now we don't look at the
303 * SSL_CTX's CERT after having duplicated it once.
305 s->cert = ssl_cert_dup(ctx->cert);
309 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
310 s->msg_callback = ctx->msg_callback;
311 s->msg_callback_arg = ctx->msg_callback_arg;
312 s->verify_mode = ctx->verify_mode;
313 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
314 s->sid_ctx_length = ctx->sid_ctx_length;
315 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
316 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
317 s->verify_callback = ctx->default_verify_callback;
318 s->generate_session_id = ctx->generate_session_id;
320 s->param = X509_VERIFY_PARAM_new();
321 if (s->param == NULL)
323 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
324 s->quiet_shutdown = ctx->quiet_shutdown;
325 s->max_send_fragment = ctx->max_send_fragment;
327 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
329 s->tlsext_debug_cb = 0;
330 s->tlsext_debug_arg = NULL;
331 s->tlsext_ticket_expected = 0;
332 s->tlsext_status_type = -1;
333 s->tlsext_status_expected = 0;
334 s->tlsext_ocsp_ids = NULL;
335 s->tlsext_ocsp_exts = NULL;
336 s->tlsext_ocsp_resp = NULL;
337 s->tlsext_ocsp_resplen = -1;
338 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
339 s->initial_ctx = ctx;
340 # ifndef OPENSSL_NO_EC
341 if (ctx->tlsext_ecpointformatlist) {
342 s->tlsext_ecpointformatlist =
343 BUF_memdup(ctx->tlsext_ecpointformatlist,
344 ctx->tlsext_ecpointformatlist_length);
345 if (!s->tlsext_ecpointformatlist)
347 s->tlsext_ecpointformatlist_length =
348 ctx->tlsext_ecpointformatlist_length;
350 if (ctx->tlsext_ellipticcurvelist) {
351 s->tlsext_ellipticcurvelist =
352 BUF_memdup(ctx->tlsext_ellipticcurvelist,
353 ctx->tlsext_ellipticcurvelist_length);
354 if (!s->tlsext_ellipticcurvelist)
356 s->tlsext_ellipticcurvelist_length =
357 ctx->tlsext_ellipticcurvelist_length;
360 # ifndef OPENSSL_NO_NEXTPROTONEG
361 s->next_proto_negotiated = NULL;
364 if (s->ctx->alpn_client_proto_list) {
365 s->alpn_client_proto_list =
366 OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);
367 if (s->alpn_client_proto_list == NULL)
369 memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,
370 s->ctx->alpn_client_proto_list_len);
371 s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;
374 s->verify_result = X509_V_OK;
376 s->default_passwd_callback = ctx->default_passwd_callback;
377 s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata;
379 s->method = ctx->method;
381 if (!s->method->ssl_new(s))
384 s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;
389 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
391 #ifndef OPENSSL_NO_PSK
392 s->psk_client_callback = ctx->psk_client_callback;
393 s->psk_server_callback = ctx->psk_server_callback;
401 SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
405 int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
406 unsigned int sid_ctx_len)
408 if (sid_ctx_len > sizeof ctx->sid_ctx) {
409 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,
410 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
413 ctx->sid_ctx_length = sid_ctx_len;
414 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
419 int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
420 unsigned int sid_ctx_len)
422 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
423 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,
424 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
427 ssl->sid_ctx_length = sid_ctx_len;
428 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len);
433 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
435 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
436 ctx->generate_session_id = cb;
437 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
441 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
443 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
444 ssl->generate_session_id = cb;
445 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
449 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
453 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
454 * we can "construct" a session to give us the desired check - ie. to
455 * find if there's a session in the hash table that would conflict with
456 * any new session built out of this id/id_len and the ssl_version in use
461 if (id_len > sizeof r.session_id)
464 r.ssl_version = ssl->version;
465 r.session_id_length = id_len;
466 memcpy(r.session_id, id, id_len);
468 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
469 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
470 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
474 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
476 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
479 int SSL_set_purpose(SSL *s, int purpose)
481 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
484 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
486 return X509_VERIFY_PARAM_set_trust(s->param, trust);
489 int SSL_set_trust(SSL *s, int trust)
491 return X509_VERIFY_PARAM_set_trust(s->param, trust);
494 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
496 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
499 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
501 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
504 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
509 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
514 void SSL_certs_clear(SSL *s)
516 ssl_cert_clear_certs(s->cert);
519 void SSL_free(SSL *s)
526 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL);
534 fprintf(stderr, "SSL_free, bad reference count\n");
539 X509_VERIFY_PARAM_free(s->param);
540 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
542 if (s->bbio != NULL) {
543 /* If the buffering BIO is in place, pop it off */
544 if (s->bbio == s->wbio) {
545 s->wbio = BIO_pop(s->wbio);
550 BIO_free_all(s->rbio);
551 if (s->wbio != s->rbio)
552 BIO_free_all(s->wbio);
554 BUF_MEM_free(s->init_buf);
556 /* add extra stuff */
557 sk_SSL_CIPHER_free(s->cipher_list);
558 sk_SSL_CIPHER_free(s->cipher_list_by_id);
560 /* Make the next call work :-) */
561 if (s->session != NULL) {
562 ssl_clear_bad_session(s);
563 SSL_SESSION_free(s->session);
568 ssl_cert_free(s->cert);
569 /* Free up if allocated */
571 OPENSSL_free(s->tlsext_hostname);
572 SSL_CTX_free(s->initial_ctx);
573 #ifndef OPENSSL_NO_EC
574 OPENSSL_free(s->tlsext_ecpointformatlist);
575 OPENSSL_free(s->tlsext_ellipticcurvelist);
576 #endif /* OPENSSL_NO_EC */
577 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free);
578 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
579 OPENSSL_free(s->tlsext_ocsp_resp);
580 OPENSSL_free(s->alpn_client_proto_list);
582 sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free);
584 if (s->method != NULL)
585 s->method->ssl_free(s);
587 RECORD_LAYER_release(&s->rlayer);
589 SSL_CTX_free(s->ctx);
591 #if !defined(OPENSSL_NO_NEXTPROTONEG)
592 OPENSSL_free(s->next_proto_negotiated);
595 #ifndef OPENSSL_NO_SRTP
596 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
602 void SSL_set_rbio(SSL *s, BIO *rbio)
605 BIO_free_all(s->rbio);
609 void SSL_set_wbio(SSL *s, BIO *wbio)
612 * If the output buffering BIO is still in place, remove it
614 if (s->bbio != NULL) {
615 if (s->wbio == s->bbio) {
616 s->wbio = s->wbio->next_bio;
617 s->bbio->next_bio = NULL;
620 if (s->wbio != wbio && s->rbio != s->wbio)
621 BIO_free_all(s->wbio);
625 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
627 SSL_set_wbio(s, wbio);
628 SSL_set_rbio(s, rbio);
631 BIO *SSL_get_rbio(const SSL *s)
636 BIO *SSL_get_wbio(const SSL *s)
641 int SSL_get_fd(const SSL *s)
643 return (SSL_get_rfd(s));
646 int SSL_get_rfd(const SSL *s)
652 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
658 int SSL_get_wfd(const SSL *s)
664 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
670 #ifndef OPENSSL_NO_SOCK
671 int SSL_set_fd(SSL *s, int fd)
676 bio = BIO_new(BIO_s_socket());
679 SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB);
682 BIO_set_fd(bio, fd, BIO_NOCLOSE);
683 SSL_set_bio(s, bio, bio);
689 int SSL_set_wfd(SSL *s, int fd)
694 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
695 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) {
696 bio = BIO_new(BIO_s_socket());
699 SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB);
702 BIO_set_fd(bio, fd, BIO_NOCLOSE);
703 SSL_set_bio(s, SSL_get_rbio(s), bio);
705 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s));
711 int SSL_set_rfd(SSL *s, int fd)
716 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
717 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) {
718 bio = BIO_new(BIO_s_socket());
721 SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB);
724 BIO_set_fd(bio, fd, BIO_NOCLOSE);
725 SSL_set_bio(s, bio, SSL_get_wbio(s));
727 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s));
734 /* return length of latest Finished message we sent, copy to 'buf' */
735 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
740 ret = s->s3->tmp.finish_md_len;
743 memcpy(buf, s->s3->tmp.finish_md, count);
748 /* return length of latest Finished message we expected, copy to 'buf' */
749 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
754 ret = s->s3->tmp.peer_finish_md_len;
757 memcpy(buf, s->s3->tmp.peer_finish_md, count);
762 int SSL_get_verify_mode(const SSL *s)
764 return (s->verify_mode);
767 int SSL_get_verify_depth(const SSL *s)
769 return X509_VERIFY_PARAM_get_depth(s->param);
772 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
773 return (s->verify_callback);
776 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
778 return (ctx->verify_mode);
781 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
783 return X509_VERIFY_PARAM_get_depth(ctx->param);
786 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
787 return (ctx->default_verify_callback);
790 void SSL_set_verify(SSL *s, int mode,
791 int (*callback) (int ok, X509_STORE_CTX *ctx))
793 s->verify_mode = mode;
794 if (callback != NULL)
795 s->verify_callback = callback;
798 void SSL_set_verify_depth(SSL *s, int depth)
800 X509_VERIFY_PARAM_set_depth(s->param, depth);
803 void SSL_set_read_ahead(SSL *s, int yes)
805 RECORD_LAYER_set_read_ahead(&s->rlayer, yes);
808 int SSL_get_read_ahead(const SSL *s)
810 return RECORD_LAYER_get_read_ahead(&s->rlayer);
813 int SSL_pending(const SSL *s)
816 * SSL_pending cannot work properly if read-ahead is enabled
817 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
818 * impossible to fix since SSL_pending cannot report errors that may be
819 * observed while scanning the new data. (Note that SSL_pending() is
820 * often used as a boolean value, so we'd better not return -1.)
822 return (s->method->ssl_pending(s));
825 X509 *SSL_get_peer_certificate(const SSL *s)
829 if ((s == NULL) || (s->session == NULL))
832 r = s->session->peer;
842 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
846 if ((s == NULL) || (s->session == NULL))
849 r = s->session->peer_chain;
852 * If we are a client, cert_chain includes the peer's own certificate; if
853 * we are a server, it does not.
860 * Now in theory, since the calling process own 't' it should be safe to
861 * modify. We need to be able to read f without being hassled
863 int SSL_copy_session_id(SSL *t, const SSL *f)
865 /* Do we need to to SSL locking? */
866 if (!SSL_set_session(t, SSL_get_session(f))) {
871 * what if we are setup for one protocol version but want to talk another
873 if (t->method != f->method) {
874 t->method->ssl_free(t); /* cleanup current */
875 t->method = f->method; /* change method */
876 t->method->ssl_new(t); /* setup new */
879 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT);
880 ssl_cert_free(t->cert);
882 if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) {
889 /* Fix this so it checks all the valid key/cert options */
890 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
893 (ctx->cert->key->x509 == NULL)) {
894 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
895 SSL_R_NO_CERTIFICATE_ASSIGNED);
898 if (ctx->cert->key->privatekey == NULL) {
899 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
900 SSL_R_NO_PRIVATE_KEY_ASSIGNED);
903 return (X509_check_private_key
904 (ctx->cert->key->x509, ctx->cert->key->privatekey));
907 /* Fix this function so that it takes an optional type parameter */
908 int SSL_check_private_key(const SSL *ssl)
911 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
914 if (ssl->cert->key->x509 == NULL) {
915 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
918 if (ssl->cert->key->privatekey == NULL) {
919 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
922 return (X509_check_private_key(ssl->cert->key->x509,
923 ssl->cert->key->privatekey));
926 int SSL_waiting_for_async(SSL *s)
934 int SSL_get_async_wait_fd(SSL *s)
939 return ASYNC_get_wait_fd(s->job);
942 static int ssl_accept_intern(void *vargs)
944 struct ssl_async_args *args;
947 args = (struct ssl_async_args *)vargs;
950 return s->method->ssl_accept(s);
953 int SSL_accept(SSL *s)
956 struct ssl_async_args args;
958 if (s->handshake_func == 0)
959 /* Not properly initialized yet */
960 SSL_set_accept_state(s);
964 if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
965 switch(ASYNC_start_job(&s->job, &ret, ssl_accept_intern, &args,
966 sizeof(struct ssl_async_args))) {
968 SSLerr(SSL_F_SSL_ACCEPT, SSL_R_FAILED_TO_INIT_ASYNC);
976 SSLerr(SSL_F_SSL_ACCEPT, ERR_R_INTERNAL_ERROR);
977 /* Shouldn't happen */
981 return s->method->ssl_accept(s);
985 int SSL_connect(SSL *s)
987 if (s->handshake_func == 0)
988 /* Not properly initialized yet */
989 SSL_set_connect_state(s);
991 return (s->method->ssl_connect(s));
994 long SSL_get_default_timeout(const SSL *s)
996 return (s->method->get_timeout());
1000 static int ssl_read_intern(void *vargs)
1002 struct ssl_async_args *args;
1007 args = (struct ssl_async_args *)vargs;
1012 return s->method->ssl_read(s, buf, num);
1015 int SSL_read(SSL *s, void *buf, int num)
1018 struct ssl_async_args args;
1020 if (s->handshake_func == 0) {
1021 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
1025 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
1026 s->rwstate = SSL_NOTHING;
1034 if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1035 switch(ASYNC_start_job(&s->job, &ret, ssl_read_intern, &args,
1036 sizeof(struct ssl_async_args))) {
1038 s->rwstate = SSL_NOTHING;
1039 SSLerr(SSL_F_SSL_READ, SSL_R_FAILED_TO_INIT_ASYNC);
1042 s->rwstate = SSL_ASYNC_PAUSED;
1048 s->rwstate = SSL_NOTHING;
1049 SSLerr(SSL_F_SSL_READ, ERR_R_INTERNAL_ERROR);
1050 /* Shouldn't happen */
1054 return s->method->ssl_read(s, buf, num);
1058 int SSL_peek(SSL *s, void *buf, int num)
1060 if (s->handshake_func == 0) {
1061 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
1065 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
1068 return (s->method->ssl_peek(s, buf, num));
1071 static int ssl_write_intern(void *vargs)
1073 struct ssl_async_args *args;
1078 args = (struct ssl_async_args *)vargs;
1083 return s->method->ssl_write(s, buf, num);
1087 int SSL_write(SSL *s, const void *buf, int num)
1090 struct ssl_async_args args;
1092 if (s->handshake_func == 0) {
1093 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
1097 if (s->shutdown & SSL_SENT_SHUTDOWN) {
1098 s->rwstate = SSL_NOTHING;
1099 SSLerr(SSL_F_SSL_WRITE, SSL_R_PROTOCOL_IS_SHUTDOWN);
1104 args.buf = (void *) buf;
1107 if((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) {
1108 switch(ASYNC_start_job(&s->job, &ret, ssl_write_intern, &args,
1109 sizeof(struct ssl_async_args))) {
1111 s->rwstate = SSL_NOTHING;
1112 SSLerr(SSL_F_SSL_WRITE, SSL_R_FAILED_TO_INIT_ASYNC);
1115 s->rwstate = SSL_ASYNC_PAUSED;
1121 s->rwstate = SSL_NOTHING;
1122 SSLerr(SSL_F_SSL_WRITE, ERR_R_INTERNAL_ERROR);
1123 /* Shouldn't happen */
1127 return s->method->ssl_write(s, buf, num);
1131 int SSL_shutdown(SSL *s)
1134 * Note that this function behaves differently from what one might
1135 * expect. Return values are 0 for no success (yet), 1 for success; but
1136 * calling it once is usually not enough, even if blocking I/O is used
1137 * (see ssl3_shutdown).
1140 if (s->handshake_func == 0) {
1141 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
1145 if (!SSL_in_init(s))
1146 return (s->method->ssl_shutdown(s));
1151 int SSL_renegotiate(SSL *s)
1153 if (s->renegotiate == 0)
1158 return (s->method->ssl_renegotiate(s));
1161 int SSL_renegotiate_abbreviated(SSL *s)
1163 if (s->renegotiate == 0)
1168 return (s->method->ssl_renegotiate(s));
1171 int SSL_renegotiate_pending(SSL *s)
1174 * becomes true when negotiation is requested; false again once a
1175 * handshake has finished
1177 return (s->renegotiate != 0);
1180 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
1185 case SSL_CTRL_GET_READ_AHEAD:
1186 return (RECORD_LAYER_get_read_ahead(&s->rlayer));
1187 case SSL_CTRL_SET_READ_AHEAD:
1188 l = RECORD_LAYER_get_read_ahead(&s->rlayer);
1189 RECORD_LAYER_set_read_ahead(&s->rlayer, larg);
1192 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1193 s->msg_callback_arg = parg;
1196 case SSL_CTRL_OPTIONS:
1197 return (s->options |= larg);
1198 case SSL_CTRL_CLEAR_OPTIONS:
1199 return (s->options &= ~larg);
1201 return (s->mode |= larg);
1202 case SSL_CTRL_CLEAR_MODE:
1203 return (s->mode &= ~larg);
1204 case SSL_CTRL_GET_MAX_CERT_LIST:
1205 return (s->max_cert_list);
1206 case SSL_CTRL_SET_MAX_CERT_LIST:
1207 l = s->max_cert_list;
1208 s->max_cert_list = larg;
1210 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1211 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1213 s->max_send_fragment = larg;
1215 case SSL_CTRL_GET_RI_SUPPORT:
1217 return s->s3->send_connection_binding;
1220 case SSL_CTRL_CERT_FLAGS:
1221 return (s->cert->cert_flags |= larg);
1222 case SSL_CTRL_CLEAR_CERT_FLAGS:
1223 return (s->cert->cert_flags &= ~larg);
1225 case SSL_CTRL_GET_RAW_CIPHERLIST:
1227 if (s->s3->tmp.ciphers_raw == NULL)
1229 *(unsigned char **)parg = s->s3->tmp.ciphers_raw;
1230 return (int)s->s3->tmp.ciphers_rawlen;
1232 return TLS_CIPHER_LEN;
1234 case SSL_CTRL_GET_EXTMS_SUPPORT:
1235 if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s))
1237 if (s->session->flags & SSL_SESS_FLAG_EXTMS)
1242 return (s->method->ssl_ctrl(s, cmd, larg, parg));
1246 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
1249 case SSL_CTRL_SET_MSG_CALLBACK:
1250 s->msg_callback = (void (*)
1251 (int write_p, int version, int content_type,
1252 const void *buf, size_t len, SSL *ssl,
1257 return (s->method->ssl_callback_ctrl(s, cmd, fp));
1261 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1263 return ctx->sessions;
1266 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
1269 /* For some cases with ctx == NULL perform syntax checks */
1272 #ifndef OPENSSL_NO_EC
1273 case SSL_CTRL_SET_CURVES_LIST:
1274 return tls1_set_curves_list(NULL, NULL, parg);
1276 case SSL_CTRL_SET_SIGALGS_LIST:
1277 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
1278 return tls1_set_sigalgs_list(NULL, parg, 0);
1285 case SSL_CTRL_GET_READ_AHEAD:
1286 return (ctx->read_ahead);
1287 case SSL_CTRL_SET_READ_AHEAD:
1288 l = ctx->read_ahead;
1289 ctx->read_ahead = larg;
1292 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1293 ctx->msg_callback_arg = parg;
1296 case SSL_CTRL_GET_MAX_CERT_LIST:
1297 return (ctx->max_cert_list);
1298 case SSL_CTRL_SET_MAX_CERT_LIST:
1299 l = ctx->max_cert_list;
1300 ctx->max_cert_list = larg;
1303 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1304 l = ctx->session_cache_size;
1305 ctx->session_cache_size = larg;
1307 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1308 return (ctx->session_cache_size);
1309 case SSL_CTRL_SET_SESS_CACHE_MODE:
1310 l = ctx->session_cache_mode;
1311 ctx->session_cache_mode = larg;
1313 case SSL_CTRL_GET_SESS_CACHE_MODE:
1314 return (ctx->session_cache_mode);
1316 case SSL_CTRL_SESS_NUMBER:
1317 return (lh_SSL_SESSION_num_items(ctx->sessions));
1318 case SSL_CTRL_SESS_CONNECT:
1319 return (ctx->stats.sess_connect);
1320 case SSL_CTRL_SESS_CONNECT_GOOD:
1321 return (ctx->stats.sess_connect_good);
1322 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1323 return (ctx->stats.sess_connect_renegotiate);
1324 case SSL_CTRL_SESS_ACCEPT:
1325 return (ctx->stats.sess_accept);
1326 case SSL_CTRL_SESS_ACCEPT_GOOD:
1327 return (ctx->stats.sess_accept_good);
1328 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1329 return (ctx->stats.sess_accept_renegotiate);
1330 case SSL_CTRL_SESS_HIT:
1331 return (ctx->stats.sess_hit);
1332 case SSL_CTRL_SESS_CB_HIT:
1333 return (ctx->stats.sess_cb_hit);
1334 case SSL_CTRL_SESS_MISSES:
1335 return (ctx->stats.sess_miss);
1336 case SSL_CTRL_SESS_TIMEOUTS:
1337 return (ctx->stats.sess_timeout);
1338 case SSL_CTRL_SESS_CACHE_FULL:
1339 return (ctx->stats.sess_cache_full);
1340 case SSL_CTRL_OPTIONS:
1341 return (ctx->options |= larg);
1342 case SSL_CTRL_CLEAR_OPTIONS:
1343 return (ctx->options &= ~larg);
1345 return (ctx->mode |= larg);
1346 case SSL_CTRL_CLEAR_MODE:
1347 return (ctx->mode &= ~larg);
1348 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1349 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1351 ctx->max_send_fragment = larg;
1353 case SSL_CTRL_CERT_FLAGS:
1354 return (ctx->cert->cert_flags |= larg);
1355 case SSL_CTRL_CLEAR_CERT_FLAGS:
1356 return (ctx->cert->cert_flags &= ~larg);
1358 return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg));
1362 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
1365 case SSL_CTRL_SET_MSG_CALLBACK:
1366 ctx->msg_callback = (void (*)
1367 (int write_p, int version, int content_type,
1368 const void *buf, size_t len, SSL *ssl,
1373 return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp));
1377 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1386 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
1387 const SSL_CIPHER *const *bp)
1389 if ((*ap)->id > (*bp)->id)
1391 if ((*ap)->id < (*bp)->id)
1396 /** return a STACK of the ciphers available for the SSL and in order of
1398 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1401 if (s->cipher_list != NULL) {
1402 return (s->cipher_list);
1403 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
1404 return (s->ctx->cipher_list);
1410 STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
1412 if ((s == NULL) || (s->session == NULL) || !s->server)
1414 return s->session->ciphers;
1417 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
1419 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
1421 ciphers = SSL_get_ciphers(s);
1424 ssl_set_client_disabled(s);
1425 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
1426 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
1427 if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED)) {
1429 sk = sk_SSL_CIPHER_new_null();
1432 if (!sk_SSL_CIPHER_push(sk, c)) {
1433 sk_SSL_CIPHER_free(sk);
1441 /** return a STACK of the ciphers available for the SSL and in order of
1443 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1446 if (s->cipher_list_by_id != NULL) {
1447 return (s->cipher_list_by_id);
1448 } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) {
1449 return (s->ctx->cipher_list_by_id);
1455 /** The old interface to get the same thing as SSL_get_ciphers() */
1456 const char *SSL_get_cipher_list(const SSL *s, int n)
1459 STACK_OF(SSL_CIPHER) *sk;
1463 sk = SSL_get_ciphers(s);
1464 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1466 c = sk_SSL_CIPHER_value(sk, n);
1472 /** specify the ciphers to be used by default by the SSL_CTX */
1473 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1475 STACK_OF(SSL_CIPHER) *sk;
1477 sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list,
1478 &ctx->cipher_list_by_id, str, ctx->cert);
1480 * ssl_create_cipher_list may return an empty stack if it was unable to
1481 * find a cipher matching the given rule string (for example if the rule
1482 * string specifies a cipher which has been disabled). This is not an
1483 * error as far as ssl_create_cipher_list is concerned, and hence
1484 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
1488 else if (sk_SSL_CIPHER_num(sk) == 0) {
1489 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1495 /** specify the ciphers to be used by the SSL */
1496 int SSL_set_cipher_list(SSL *s, const char *str)
1498 STACK_OF(SSL_CIPHER) *sk;
1500 sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list,
1501 &s->cipher_list_by_id, str, s->cert);
1502 /* see comment in SSL_CTX_set_cipher_list */
1505 else if (sk_SSL_CIPHER_num(sk) == 0) {
1506 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1512 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len)
1515 STACK_OF(SSL_CIPHER) *sk;
1519 if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2))
1523 sk = s->session->ciphers;
1525 if (sk_SSL_CIPHER_num(sk) == 0)
1528 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
1531 c = sk_SSL_CIPHER_value(sk, i);
1532 n = strlen(c->name);
1548 /** return a servername extension value if provided in Client Hello, or NULL.
1549 * So far, only host_name types are defined (RFC 3546).
1552 const char *SSL_get_servername(const SSL *s, const int type)
1554 if (type != TLSEXT_NAMETYPE_host_name)
1557 return s->session && !s->tlsext_hostname ?
1558 s->session->tlsext_hostname : s->tlsext_hostname;
1561 int SSL_get_servername_type(const SSL *s)
1564 && (!s->tlsext_hostname ? s->session->
1565 tlsext_hostname : s->tlsext_hostname))
1566 return TLSEXT_NAMETYPE_host_name;
1571 * SSL_select_next_proto implements the standard protocol selection. It is
1572 * expected that this function is called from the callback set by
1573 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
1574 * vector of 8-bit, length prefixed byte strings. The length byte itself is
1575 * not included in the length. A byte string of length 0 is invalid. No byte
1576 * string may be truncated. The current, but experimental algorithm for
1577 * selecting the protocol is: 1) If the server doesn't support NPN then this
1578 * is indicated to the callback. In this case, the client application has to
1579 * abort the connection or have a default application level protocol. 2) If
1580 * the server supports NPN, but advertises an empty list then the client
1581 * selects the first protcol in its list, but indicates via the API that this
1582 * fallback case was enacted. 3) Otherwise, the client finds the first
1583 * protocol in the server's list that it supports and selects this protocol.
1584 * This is because it's assumed that the server has better information about
1585 * which protocol a client should use. 4) If the client doesn't support any
1586 * of the server's advertised protocols, then this is treated the same as
1587 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
1588 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1590 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
1591 const unsigned char *server,
1592 unsigned int server_len,
1593 const unsigned char *client,
1594 unsigned int client_len)
1597 const unsigned char *result;
1598 int status = OPENSSL_NPN_UNSUPPORTED;
1601 * For each protocol in server preference order, see if we support it.
1603 for (i = 0; i < server_len;) {
1604 for (j = 0; j < client_len;) {
1605 if (server[i] == client[j] &&
1606 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
1607 /* We found a match */
1608 result = &server[i];
1609 status = OPENSSL_NPN_NEGOTIATED;
1619 /* There's no overlap between our protocols and the server's list. */
1621 status = OPENSSL_NPN_NO_OVERLAP;
1624 *out = (unsigned char *)result + 1;
1625 *outlen = result[0];
1629 #ifndef OPENSSL_NO_NEXTPROTONEG
1631 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
1632 * client's requested protocol for this connection and returns 0. If the
1633 * client didn't request any protocol, then *data is set to NULL. Note that
1634 * the client can request any protocol it chooses. The value returned from
1635 * this function need not be a member of the list of supported protocols
1636 * provided by the callback.
1638 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
1641 *data = s->next_proto_negotiated;
1645 *len = s->next_proto_negotiated_len;
1650 * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when
1651 * a TLS server needs a list of supported protocols for Next Protocol
1652 * Negotiation. The returned list must be in wire format. The list is
1653 * returned by setting |out| to point to it and |outlen| to its length. This
1654 * memory will not be modified, but one should assume that the SSL* keeps a
1655 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
1656 * wishes to advertise. Otherwise, no such extension will be included in the
1659 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx,
1660 int (*cb) (SSL *ssl,
1663 unsigned int *outlen,
1664 void *arg), void *arg)
1666 ctx->next_protos_advertised_cb = cb;
1667 ctx->next_protos_advertised_cb_arg = arg;
1671 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1672 * client needs to select a protocol from the server's provided list. |out|
1673 * must be set to point to the selected protocol (which may be within |in|).
1674 * The length of the protocol name must be written into |outlen|. The
1675 * server's advertised protocols are provided in |in| and |inlen|. The
1676 * callback can assume that |in| is syntactically valid. The client must
1677 * select a protocol. It is fatal to the connection if this callback returns
1678 * a value other than SSL_TLSEXT_ERR_OK.
1680 void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx,
1681 int (*cb) (SSL *s, unsigned char **out,
1682 unsigned char *outlen,
1683 const unsigned char *in,
1685 void *arg), void *arg)
1687 ctx->next_proto_select_cb = cb;
1688 ctx->next_proto_select_cb_arg = arg;
1693 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
1694 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1695 * length-prefixed strings). Returns 0 on success.
1697 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
1698 unsigned protos_len)
1700 OPENSSL_free(ctx->alpn_client_proto_list);
1701 ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1702 if (ctx->alpn_client_proto_list == NULL)
1704 memcpy(ctx->alpn_client_proto_list, protos, protos_len);
1705 ctx->alpn_client_proto_list_len = protos_len;
1711 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
1712 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1713 * length-prefixed strings). Returns 0 on success.
1715 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
1716 unsigned protos_len)
1718 OPENSSL_free(ssl->alpn_client_proto_list);
1719 ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1720 if (ssl->alpn_client_proto_list == NULL)
1722 memcpy(ssl->alpn_client_proto_list, protos, protos_len);
1723 ssl->alpn_client_proto_list_len = protos_len;
1729 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
1730 * called during ClientHello processing in order to select an ALPN protocol
1731 * from the client's list of offered protocols.
1733 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
1734 int (*cb) (SSL *ssl,
1735 const unsigned char **out,
1736 unsigned char *outlen,
1737 const unsigned char *in,
1739 void *arg), void *arg)
1741 ctx->alpn_select_cb = cb;
1742 ctx->alpn_select_cb_arg = arg;
1746 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from
1747 * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name
1748 * (not including the leading length-prefix byte). If the server didn't
1749 * respond with a negotiated protocol then |*len| will be zero.
1751 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
1756 *data = ssl->s3->alpn_selected;
1760 *len = ssl->s3->alpn_selected_len;
1764 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1765 const char *label, size_t llen,
1766 const unsigned char *p, size_t plen,
1769 if (s->version < TLS1_VERSION)
1772 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
1777 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1782 ((unsigned int)a->session_id[0]) |
1783 ((unsigned int)a->session_id[1] << 8L) |
1784 ((unsigned long)a->session_id[2] << 16L) |
1785 ((unsigned long)a->session_id[3] << 24L);
1790 * NB: If this function (or indeed the hash function which uses a sort of
1791 * coarser function than this one) is changed, ensure
1792 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
1793 * being able to construct an SSL_SESSION that will collide with any existing
1794 * session with a matching session ID.
1796 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
1798 if (a->ssl_version != b->ssl_version)
1800 if (a->session_id_length != b->session_id_length)
1802 return (memcmp(a->session_id, b->session_id, a->session_id_length));
1806 * These wrapper functions should remain rather than redeclaring
1807 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1808 * variable. The reason is that the functions aren't static, they're exposed
1811 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1812 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1814 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1816 SSL_CTX *ret = NULL;
1819 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED);
1823 if (FIPS_mode() && (meth->version < TLS1_VERSION)) {
1824 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1828 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
1829 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1832 ret = OPENSSL_zalloc(sizeof(*ret));
1837 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
1838 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1839 /* We take the system default. */
1840 ret->session_timeout = meth->get_timeout();
1841 ret->references = 1;
1842 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
1843 ret->verify_mode = SSL_VERIFY_NONE;
1844 if ((ret->cert = ssl_cert_new()) == NULL)
1847 ret->sessions = lh_SSL_SESSION_new();
1848 if (ret->sessions == NULL)
1850 ret->cert_store = X509_STORE_new();
1851 if (ret->cert_store == NULL)
1854 if (!ssl_create_cipher_list(ret->method,
1855 &ret->cipher_list, &ret->cipher_list_by_id,
1856 SSL_DEFAULT_CIPHER_LIST, ret->cert)
1857 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
1858 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);
1862 ret->param = X509_VERIFY_PARAM_new();
1863 if (ret->param == NULL)
1866 if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {
1867 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1870 if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) {
1871 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1875 if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL)
1878 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1880 /* No compression for DTLS */
1881 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
1882 ret->comp_methods = SSL_COMP_get_compression_methods();
1884 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1886 /* Setup RFC4507 ticket keys */
1887 if ((RAND_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1888 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1889 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1890 ret->options |= SSL_OP_NO_TICKET;
1892 #ifndef OPENSSL_NO_SRP
1893 if (!SSL_CTX_SRP_CTX_init(ret))
1896 #ifndef OPENSSL_NO_ENGINE
1897 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1898 # define eng_strx(x) #x
1899 # define eng_str(x) eng_strx(x)
1900 /* Use specific client engine automatically... ignore errors */
1903 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1906 ENGINE_load_builtin_engines();
1907 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1909 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
1915 * Default is to connect to non-RI servers. When RI is more widely
1916 * deployed might change this.
1918 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
1922 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
1928 void SSL_CTX_free(SSL_CTX *a)
1935 i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_SSL_CTX);
1937 REF_PRINT("SSL_CTX", a);
1943 fprintf(stderr, "SSL_CTX_free, bad reference count\n");
1948 X509_VERIFY_PARAM_free(a->param);
1951 * Free internal session cache. However: the remove_cb() may reference
1952 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1953 * after the sessions were flushed.
1954 * As the ex_data handling routines might also touch the session cache,
1955 * the most secure solution seems to be: empty (flush) the cache, then
1956 * free ex_data, then finally free the cache.
1957 * (See ticket [openssl.org #212].)
1959 if (a->sessions != NULL)
1960 SSL_CTX_flush_sessions(a, 0);
1962 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1963 lh_SSL_SESSION_free(a->sessions);
1964 X509_STORE_free(a->cert_store);
1965 sk_SSL_CIPHER_free(a->cipher_list);
1966 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1967 ssl_cert_free(a->cert);
1968 sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free);
1969 sk_X509_pop_free(a->extra_certs, X509_free);
1970 a->comp_methods = NULL;
1971 #ifndef OPENSSL_NO_SRTP
1972 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
1974 #ifndef OPENSSL_NO_SRP
1975 SSL_CTX_SRP_CTX_free(a);
1977 #ifndef OPENSSL_NO_ENGINE
1978 if (a->client_cert_engine)
1979 ENGINE_finish(a->client_cert_engine);
1982 #ifndef OPENSSL_NO_EC
1983 OPENSSL_free(a->tlsext_ecpointformatlist);
1984 OPENSSL_free(a->tlsext_ellipticcurvelist);
1986 OPENSSL_free(a->alpn_client_proto_list);
1991 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1993 ctx->default_passwd_callback = cb;
1996 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
1998 ctx->default_passwd_callback_userdata = u;
2001 void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb)
2003 s->default_passwd_callback = cb;
2006 void SSL_set_default_passwd_cb_userdata(SSL *s, void *u)
2008 s->default_passwd_callback_userdata = u;
2011 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
2012 int (*cb) (X509_STORE_CTX *, void *),
2015 ctx->app_verify_callback = cb;
2016 ctx->app_verify_arg = arg;
2019 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
2020 int (*cb) (int, X509_STORE_CTX *))
2022 ctx->verify_mode = mode;
2023 ctx->default_verify_callback = cb;
2026 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
2028 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
2031 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg),
2034 ssl_cert_set_cert_cb(c->cert, cb, arg);
2037 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
2039 ssl_cert_set_cert_cb(s->cert, cb, arg);
2042 void ssl_set_masks(SSL *s, const SSL_CIPHER *cipher)
2046 uint32_t *pvalid = s->s3->tmp.valid_flags;
2047 int rsa_enc, rsa_tmp, rsa_sign, dh_tmp, dh_rsa, dh_dsa, dsa_sign;
2048 int rsa_enc_export, dh_rsa_export, dh_dsa_export;
2049 int rsa_tmp_export, dh_tmp_export, kl;
2050 unsigned long mask_k, mask_a, emask_k, emask_a;
2051 #ifndef OPENSSL_NO_EC
2052 int have_ecc_cert, ecdsa_ok, ecc_pkey_size;
2053 int have_ecdh_tmp, ecdh_ok;
2055 EVP_PKEY *ecc_pkey = NULL;
2056 int pk_nid = 0, md_nid = 0;
2061 kl = SSL_C_EXPORT_PKEYLENGTH(cipher);
2063 #ifndef OPENSSL_NO_RSA
2064 rsa_tmp = (c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
2065 rsa_tmp_export = (c->rsa_tmp_cb != NULL ||
2066 (rsa_tmp && RSA_size(c->rsa_tmp) * 8 <= kl));
2068 rsa_tmp = rsa_tmp_export = 0;
2070 #ifndef OPENSSL_NO_DH
2071 dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto);
2072 dh_tmp_export = !c->dh_tmp_auto && (c->dh_tmp_cb != NULL ||
2074 && DH_size(c->dh_tmp) * 8 <= kl));
2076 dh_tmp = dh_tmp_export = 0;
2079 #ifndef OPENSSL_NO_EC
2080 have_ecdh_tmp = (c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
2082 cpk = &(c->pkeys[SSL_PKEY_RSA_ENC]);
2083 rsa_enc = pvalid[SSL_PKEY_RSA_ENC] & CERT_PKEY_VALID;
2084 rsa_enc_export = (rsa_enc && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
2085 cpk = &(c->pkeys[SSL_PKEY_RSA_SIGN]);
2086 rsa_sign = pvalid[SSL_PKEY_RSA_SIGN] & CERT_PKEY_SIGN;
2087 cpk = &(c->pkeys[SSL_PKEY_DSA_SIGN]);
2088 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_SIGN;
2089 cpk = &(c->pkeys[SSL_PKEY_DH_RSA]);
2090 dh_rsa = pvalid[SSL_PKEY_DH_RSA] & CERT_PKEY_VALID;
2091 dh_rsa_export = (dh_rsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
2092 cpk = &(c->pkeys[SSL_PKEY_DH_DSA]);
2093 dh_dsa = pvalid[SSL_PKEY_DH_DSA] & CERT_PKEY_VALID;
2094 dh_dsa_export = (dh_dsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
2095 cpk = &(c->pkeys[SSL_PKEY_ECC]);
2096 #ifndef OPENSSL_NO_EC
2097 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
2106 "rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2107 rsa_tmp, rsa_tmp_export, dh_tmp, have_ecdh_tmp, rsa_enc,
2108 rsa_enc_export, rsa_sign, dsa_sign, dh_rsa, dh_dsa);
2111 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2112 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2113 mask_k |= SSL_kGOST;
2114 mask_a |= SSL_aGOST01;
2117 if (rsa_enc || (rsa_tmp && rsa_sign))
2119 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
2120 emask_k |= SSL_kRSA;
2123 emask_k |= SSL_kDHE;
2131 emask_k |= SSL_kDHr;
2136 emask_k |= SSL_kDHd;
2138 if (mask_k & (SSL_kDHr | SSL_kDHd))
2141 if (rsa_enc || rsa_sign) {
2143 emask_a |= SSL_aRSA;
2148 emask_a |= SSL_aDSS;
2151 mask_a |= SSL_aNULL;
2152 emask_a |= SSL_aNULL;
2155 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
2156 * depending on the key usage extension.
2158 #ifndef OPENSSL_NO_EC
2159 if (have_ecc_cert) {
2161 cpk = &c->pkeys[SSL_PKEY_ECC];
2163 ex_kusage = X509_get_key_usage(x);
2164 ecdh_ok = ex_kusage & X509v3_KU_KEY_AGREEMENT;
2165 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
2166 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
2168 ecc_pkey = X509_get_pubkey(x);
2169 ecc_pkey_size = (ecc_pkey != NULL) ? EVP_PKEY_bits(ecc_pkey) : 0;
2170 EVP_PKEY_free(ecc_pkey);
2171 OBJ_find_sigid_algs(X509_get_signature_nid(x), &md_nid, &pk_nid);
2174 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa) {
2175 mask_k |= SSL_kECDHr;
2176 mask_a |= SSL_aECDH;
2177 if (ecc_pkey_size <= 163) {
2178 emask_k |= SSL_kECDHr;
2179 emask_a |= SSL_aECDH;
2183 if (pk_nid == NID_X9_62_id_ecPublicKey) {
2184 mask_k |= SSL_kECDHe;
2185 mask_a |= SSL_aECDH;
2186 if (ecc_pkey_size <= 163) {
2187 emask_k |= SSL_kECDHe;
2188 emask_a |= SSL_aECDH;
2193 mask_a |= SSL_aECDSA;
2194 emask_a |= SSL_aECDSA;
2199 #ifndef OPENSSL_NO_EC
2200 if (have_ecdh_tmp) {
2201 mask_k |= SSL_kECDHE;
2202 emask_k |= SSL_kECDHE;
2206 #ifndef OPENSSL_NO_PSK
2209 emask_k |= SSL_kPSK;
2210 emask_a |= SSL_aPSK;
2211 if (mask_k & SSL_kRSA)
2212 mask_k |= SSL_kRSAPSK;
2213 if (mask_k & SSL_kDHE)
2214 mask_k |= SSL_kDHEPSK;
2215 if (mask_k & SSL_kECDHE)
2216 mask_k |= SSL_kECDHEPSK;
2219 s->s3->tmp.mask_k = mask_k;
2220 s->s3->tmp.mask_a = mask_a;
2221 s->s3->tmp.export_mask_k = emask_k;
2222 s->s3->tmp.export_mask_a = emask_a;
2225 #ifndef OPENSSL_NO_EC
2227 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2229 unsigned long alg_k, alg_a;
2230 EVP_PKEY *pkey = NULL;
2232 int md_nid = 0, pk_nid = 0;
2233 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2234 uint32_t ex_kusage = X509_get_key_usage(x);
2236 alg_k = cs->algorithm_mkey;
2237 alg_a = cs->algorithm_auth;
2239 if (SSL_C_IS_EXPORT(cs)) {
2240 /* ECDH key length in export ciphers must be <= 163 bits */
2241 pkey = X509_get_pubkey(x);
2244 keysize = EVP_PKEY_bits(pkey);
2245 EVP_PKEY_free(pkey);
2250 OBJ_find_sigid_algs(X509_get_signature_nid(x), &md_nid, &pk_nid);
2252 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr) {
2253 /* key usage, if present, must allow key agreement */
2254 if (!(ex_kusage & X509v3_KU_KEY_AGREEMENT)) {
2255 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2256 SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2259 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION) {
2260 /* signature alg must be ECDSA */
2261 if (pk_nid != NID_X9_62_id_ecPublicKey) {
2262 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2263 SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2267 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION) {
2268 /* signature alg must be RSA */
2270 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa) {
2271 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2272 SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2277 if (alg_a & SSL_aECDSA) {
2278 /* key usage, if present, must allow signing */
2279 if (!(ex_kusage & X509v3_KU_DIGITAL_SIGNATURE)) {
2280 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2281 SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2286 return 1; /* all checks are ok */
2291 static int ssl_get_server_cert_index(const SSL *s)
2294 idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2295 if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2296 idx = SSL_PKEY_RSA_SIGN;
2298 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX, ERR_R_INTERNAL_ERROR);
2302 CERT_PKEY *ssl_get_server_send_pkey(SSL *s)
2308 if (!s->s3 || !s->s3->tmp.new_cipher)
2310 ssl_set_masks(s, s->s3->tmp.new_cipher);
2312 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2314 * Broken protocol test: return last used certificate: which may mismatch
2317 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2321 i = ssl_get_server_cert_index(s);
2323 /* This may or may not be an error. */
2328 return &c->pkeys[i];
2331 EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher,
2334 unsigned long alg_a;
2338 alg_a = cipher->algorithm_auth;
2341 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2343 * Broken protocol test: use last key: which may mismatch the one
2346 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2347 idx = c->key - c->pkeys;
2351 if ((alg_a & SSL_aDSS) &&
2352 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2353 idx = SSL_PKEY_DSA_SIGN;
2354 else if (alg_a & SSL_aRSA) {
2355 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2356 idx = SSL_PKEY_RSA_SIGN;
2357 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2358 idx = SSL_PKEY_RSA_ENC;
2359 } else if ((alg_a & SSL_aECDSA) &&
2360 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2363 SSLerr(SSL_F_SSL_GET_SIGN_PKEY, ERR_R_INTERNAL_ERROR);
2367 *pmd = s->s3->tmp.md[idx];
2368 return c->pkeys[idx].privatekey;
2371 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
2372 size_t *serverinfo_length)
2376 *serverinfo_length = 0;
2379 i = ssl_get_server_cert_index(s);
2383 if (c->pkeys[i].serverinfo == NULL)
2386 *serverinfo = c->pkeys[i].serverinfo;
2387 *serverinfo_length = c->pkeys[i].serverinfo_length;
2391 void ssl_update_cache(SSL *s, int mode)
2396 * If the session_id_length is 0, we are not supposed to cache it, and it
2397 * would be rather hard to do anyway :-)
2399 if (s->session->session_id_length == 0)
2402 i = s->session_ctx->session_cache_mode;
2403 if ((i & mode) && (!s->hit)
2404 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2405 || SSL_CTX_add_session(s->session_ctx, s->session))
2406 && (s->session_ctx->new_session_cb != NULL)) {
2407 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION);
2408 if (!s->session_ctx->new_session_cb(s, s->session))
2409 SSL_SESSION_free(s->session);
2412 /* auto flush every 255 connections */
2413 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
2414 if ((((mode & SSL_SESS_CACHE_CLIENT)
2415 ? s->session_ctx->stats.sess_connect_good
2416 : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) {
2417 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
2422 const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx)
2427 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2432 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2437 if (s->method != meth) {
2438 if (s->handshake_func != NULL)
2439 conn = (s->handshake_func == s->method->ssl_connect);
2441 if (s->method->version == meth->version)
2444 s->method->ssl_free(s);
2446 ret = s->method->ssl_new(s);
2450 s->handshake_func = meth->ssl_connect;
2452 s->handshake_func = meth->ssl_accept;
2457 int SSL_get_error(const SSL *s, int i)
2464 return (SSL_ERROR_NONE);
2467 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
2468 * where we do encode the error
2470 if ((l = ERR_peek_error()) != 0) {
2471 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2472 return (SSL_ERROR_SYSCALL);
2474 return (SSL_ERROR_SSL);
2477 if ((i < 0) && SSL_want_read(s)) {
2478 bio = SSL_get_rbio(s);
2479 if (BIO_should_read(bio))
2480 return (SSL_ERROR_WANT_READ);
2481 else if (BIO_should_write(bio))
2483 * This one doesn't make too much sense ... We never try to write
2484 * to the rbio, and an application program where rbio and wbio
2485 * are separate couldn't even know what it should wait for.
2486 * However if we ever set s->rwstate incorrectly (so that we have
2487 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
2488 * wbio *are* the same, this test works around that bug; so it
2489 * might be safer to keep it.
2491 return (SSL_ERROR_WANT_WRITE);
2492 else if (BIO_should_io_special(bio)) {
2493 reason = BIO_get_retry_reason(bio);
2494 if (reason == BIO_RR_CONNECT)
2495 return (SSL_ERROR_WANT_CONNECT);
2496 else if (reason == BIO_RR_ACCEPT)
2497 return (SSL_ERROR_WANT_ACCEPT);
2499 return (SSL_ERROR_SYSCALL); /* unknown */
2503 if ((i < 0) && SSL_want_write(s)) {
2504 bio = SSL_get_wbio(s);
2505 if (BIO_should_write(bio))
2506 return (SSL_ERROR_WANT_WRITE);
2507 else if (BIO_should_read(bio))
2509 * See above (SSL_want_read(s) with BIO_should_write(bio))
2511 return (SSL_ERROR_WANT_READ);
2512 else if (BIO_should_io_special(bio)) {
2513 reason = BIO_get_retry_reason(bio);
2514 if (reason == BIO_RR_CONNECT)
2515 return (SSL_ERROR_WANT_CONNECT);
2516 else if (reason == BIO_RR_ACCEPT)
2517 return (SSL_ERROR_WANT_ACCEPT);
2519 return (SSL_ERROR_SYSCALL);
2522 if ((i < 0) && SSL_want_x509_lookup(s)) {
2523 return (SSL_ERROR_WANT_X509_LOOKUP);
2525 if ((i < 0) && SSL_want_async(s)) {
2526 return SSL_ERROR_WANT_ASYNC;
2530 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2531 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2532 return (SSL_ERROR_ZERO_RETURN);
2534 return (SSL_ERROR_SYSCALL);
2537 int SSL_do_handshake(SSL *s)
2541 if (s->handshake_func == NULL) {
2542 SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET);
2546 s->method->ssl_renegotiate_check(s);
2548 if (SSL_in_init(s) || SSL_in_before(s)) {
2549 ret = s->handshake_func(s);
2554 void SSL_set_accept_state(SSL *s)
2558 ossl_statem_clear(s);
2559 s->handshake_func = s->method->ssl_accept;
2563 void SSL_set_connect_state(SSL *s)
2567 ossl_statem_clear(s);
2568 s->handshake_func = s->method->ssl_connect;
2572 int ssl_undefined_function(SSL *s)
2574 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2578 int ssl_undefined_void_function(void)
2580 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,
2581 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2585 int ssl_undefined_const_function(const SSL *s)
2590 SSL_METHOD *ssl_bad_method(int ver)
2592 SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2596 const char *SSL_get_version(const SSL *s)
2598 if (s->version == TLS1_2_VERSION)
2600 else if (s->version == TLS1_1_VERSION)
2602 else if (s->version == TLS1_VERSION)
2604 else if (s->version == SSL3_VERSION)
2606 else if (s->version == DTLS1_BAD_VER)
2607 return ("DTLSv0.9");
2608 else if (s->version == DTLS1_VERSION)
2610 else if (s->version == DTLS1_2_VERSION)
2611 return ("DTLSv1.2");
2616 SSL *SSL_dup(SSL *s)
2618 STACK_OF(X509_NAME) *sk;
2623 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2626 ret->version = s->version;
2627 ret->method = s->method;
2629 if (s->session != NULL) {
2630 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2631 if (!SSL_copy_session_id(ret, s))
2635 * No session has been established yet, so we have to expect that
2636 * s->cert or ret->cert will be changed later -- they should not both
2637 * point to the same object, and thus we can't use
2638 * SSL_copy_session_id.
2641 ret->method->ssl_free(ret);
2642 ret->method = s->method;
2643 ret->method->ssl_new(ret);
2645 if (s->cert != NULL) {
2646 ssl_cert_free(ret->cert);
2647 ret->cert = ssl_cert_dup(s->cert);
2648 if (ret->cert == NULL)
2652 if (!SSL_set_session_id_context(ret, s->sid_ctx, s->sid_ctx_length))
2656 ret->options = s->options;
2657 ret->mode = s->mode;
2658 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
2659 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
2660 ret->msg_callback = s->msg_callback;
2661 ret->msg_callback_arg = s->msg_callback_arg;
2662 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
2663 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
2664 ret->generate_session_id = s->generate_session_id;
2666 SSL_set_info_callback(ret, SSL_get_info_callback(s));
2668 ret->debug = s->debug;
2670 /* copy app data, a little dangerous perhaps */
2671 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2674 /* setup rbio, and wbio */
2675 if (s->rbio != NULL) {
2676 if (!BIO_dup_state(s->rbio, (char *)&ret->rbio))
2679 if (s->wbio != NULL) {
2680 if (s->wbio != s->rbio) {
2681 if (!BIO_dup_state(s->wbio, (char *)&ret->wbio))
2684 ret->wbio = ret->rbio;
2686 ret->rwstate = s->rwstate;
2687 ret->handshake_func = s->handshake_func;
2688 ret->server = s->server;
2689 ret->renegotiate = s->renegotiate;
2690 ret->new_session = s->new_session;
2691 ret->quiet_shutdown = s->quiet_shutdown;
2692 ret->shutdown = s->shutdown;
2693 ret->statem = s->statem; /* SSL_dup does not really work at any state,
2695 RECORD_LAYER_dup(&ret->rlayer, &s->rlayer);
2696 ret->init_num = 0; /* would have to copy ret->init_buf,
2697 * ret->init_msg, ret->init_num,
2701 ret->default_passwd_callback = s->default_passwd_callback;
2702 ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata;
2704 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2706 /* dup the cipher_list and cipher_list_by_id stacks */
2707 if (s->cipher_list != NULL) {
2708 if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2711 if (s->cipher_list_by_id != NULL)
2712 if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2716 /* Dup the client_CA list */
2717 if (s->client_CA != NULL) {
2718 if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL)
2720 ret->client_CA = sk;
2721 for (i = 0; i < sk_X509_NAME_num(sk); i++) {
2722 xn = sk_X509_NAME_value(sk, i);
2723 if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) {
2736 void ssl_clear_cipher_ctx(SSL *s)
2738 if (s->enc_read_ctx != NULL) {
2739 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2740 OPENSSL_free(s->enc_read_ctx);
2741 s->enc_read_ctx = NULL;
2743 if (s->enc_write_ctx != NULL) {
2744 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2745 OPENSSL_free(s->enc_write_ctx);
2746 s->enc_write_ctx = NULL;
2748 #ifndef OPENSSL_NO_COMP
2749 COMP_CTX_free(s->expand);
2751 COMP_CTX_free(s->compress);
2756 X509 *SSL_get_certificate(const SSL *s)
2758 if (s->cert != NULL)
2759 return (s->cert->key->x509);
2764 EVP_PKEY *SSL_get_privatekey(const SSL *s)
2766 if (s->cert != NULL)
2767 return (s->cert->key->privatekey);
2772 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
2774 if (ctx->cert != NULL)
2775 return ctx->cert->key->x509;
2780 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
2782 if (ctx->cert != NULL)
2783 return ctx->cert->key->privatekey;
2788 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2790 if ((s->session != NULL) && (s->session->cipher != NULL))
2791 return (s->session->cipher);
2795 const COMP_METHOD *SSL_get_current_compression(SSL *s)
2797 #ifndef OPENSSL_NO_COMP
2798 return s->compress ? COMP_CTX_get_method(s->compress) : NULL;
2804 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2806 #ifndef OPENSSL_NO_COMP
2807 return s->expand ? COMP_CTX_get_method(s->expand) : NULL;
2813 int ssl_init_wbio_buffer(SSL *s, int push)
2817 if (s->bbio == NULL) {
2818 bbio = BIO_new(BIO_f_buffer());
2824 if (s->bbio == s->wbio)
2825 s->wbio = BIO_pop(s->wbio);
2827 (void)BIO_reset(bbio);
2828 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2829 if (!BIO_set_read_buffer_size(bbio, 1)) {
2830 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB);
2834 if (s->wbio != bbio)
2835 s->wbio = BIO_push(bbio, s->wbio);
2837 if (s->wbio == bbio)
2838 s->wbio = BIO_pop(bbio);
2843 void ssl_free_wbio_buffer(SSL *s)
2845 /* callers ensure s is never null */
2846 if (s->bbio == NULL)
2849 if (s->bbio == s->wbio) {
2850 /* remove buffering */
2851 s->wbio = BIO_pop(s->wbio);
2852 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids
2853 * adding one more preprocessor symbol */
2854 assert(s->wbio != NULL);
2861 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
2863 ctx->quiet_shutdown = mode;
2866 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2868 return (ctx->quiet_shutdown);
2871 void SSL_set_quiet_shutdown(SSL *s, int mode)
2873 s->quiet_shutdown = mode;
2876 int SSL_get_quiet_shutdown(const SSL *s)
2878 return (s->quiet_shutdown);
2881 void SSL_set_shutdown(SSL *s, int mode)
2886 int SSL_get_shutdown(const SSL *s)
2888 return (s->shutdown);
2891 int SSL_version(const SSL *s)
2893 return (s->version);
2896 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2901 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
2904 if (ssl->ctx == ctx)
2907 ctx = ssl->initial_ctx;
2908 new_cert = ssl_cert_dup(ctx->cert);
2909 if (new_cert == NULL) {
2912 ssl_cert_free(ssl->cert);
2913 ssl->cert = new_cert;
2916 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
2917 * so setter APIs must prevent invalid lengths from entering the system.
2919 OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx));
2922 * If the session ID context matches that of the parent SSL_CTX,
2923 * inherit it from the new SSL_CTX as well. If however the context does
2924 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
2925 * leave it unchanged.
2927 if ((ssl->ctx != NULL) &&
2928 (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
2929 (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) {
2930 ssl->sid_ctx_length = ctx->sid_ctx_length;
2931 memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx));
2934 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
2935 SSL_CTX_free(ssl->ctx); /* decrement reference count */
2941 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2943 return (X509_STORE_set_default_paths(ctx->cert_store));
2946 int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
2948 X509_LOOKUP *lookup;
2950 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
2953 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
2955 /* Clear any errors if the default directory does not exist */
2961 int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
2963 X509_LOOKUP *lookup;
2965 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
2969 X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
2971 /* Clear any errors if the default file does not exist */
2977 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2980 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath));
2983 void SSL_set_info_callback(SSL *ssl,
2984 void (*cb) (const SSL *ssl, int type, int val))
2986 ssl->info_callback = cb;
2990 * One compiler (Diab DCC) doesn't like argument names in returned function
2993 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
2996 return ssl->info_callback;
2999 void SSL_set_verify_result(SSL *ssl, long arg)
3001 ssl->verify_result = arg;
3004 long SSL_get_verify_result(const SSL *ssl)
3006 return (ssl->verify_result);
3009 size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
3012 return sizeof(ssl->s3->client_random);
3013 if (outlen > sizeof(ssl->s3->client_random))
3014 outlen = sizeof(ssl->s3->client_random);
3015 memcpy(out, ssl->s3->client_random, outlen);
3019 size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
3022 return sizeof(ssl->s3->server_random);
3023 if (outlen > sizeof(ssl->s3->server_random))
3024 outlen = sizeof(ssl->s3->server_random);
3025 memcpy(out, ssl->s3->server_random, outlen);
3029 size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
3030 unsigned char *out, size_t outlen)
3032 if (session->master_key_length < 0) {
3033 /* Should never happen */
3037 return session->master_key_length;
3038 if (outlen > (size_t)session->master_key_length)
3039 outlen = session->master_key_length;
3040 memcpy(out, session->master_key, outlen);
3044 int SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
3045 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
3047 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
3048 new_func, dup_func, free_func);
3051 int SSL_set_ex_data(SSL *s, int idx, void *arg)
3053 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
3056 void *SSL_get_ex_data(const SSL *s, int idx)
3058 return (CRYPTO_get_ex_data(&s->ex_data, idx));
3061 int SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
3062 CRYPTO_EX_dup *dup_func,
3063 CRYPTO_EX_free *free_func)
3065 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
3066 new_func, dup_func, free_func);
3069 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
3071 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
3074 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
3076 return (CRYPTO_get_ex_data(&s->ex_data, idx));
3084 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
3086 return (ctx->cert_store);
3089 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
3091 X509_STORE_free(ctx->cert_store);
3092 ctx->cert_store = store;
3095 int SSL_want(const SSL *s)
3097 return (s->rwstate);
3101 * \brief Set the callback for generating temporary RSA keys.
3102 * \param ctx the SSL context.
3103 * \param cb the callback
3106 #ifndef OPENSSL_NO_RSA
3107 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb) (SSL *ssl,
3111 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb);
3114 void SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb) (SSL *ssl,
3118 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb);
3124 * \brief The RSA temporary key callback function.
3125 * \param ssl the SSL session.
3126 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3127 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3128 * of the required key in bits.
3129 * \return the temporary RSA key.
3130 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3133 RSA *cb(SSL *ssl, int is_export, int keylength)
3139 * \brief Set the callback for generating temporary DH keys.
3140 * \param ctx the SSL context.
3141 * \param dh the callback
3144 #ifndef OPENSSL_NO_DH
3145 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
3146 DH *(*dh) (SSL *ssl, int is_export,
3149 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3152 void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export,
3155 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3159 #ifndef OPENSSL_NO_EC
3160 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,
3161 EC_KEY *(*ecdh) (SSL *ssl, int is_export,
3164 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB,
3165 (void (*)(void))ecdh);
3168 void SSL_set_tmp_ecdh_callback(SSL *ssl,
3169 EC_KEY *(*ecdh) (SSL *ssl, int is_export,
3172 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB, (void (*)(void))ecdh);
3176 #ifndef OPENSSL_NO_PSK
3177 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3179 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3180 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT,
3181 SSL_R_DATA_LENGTH_TOO_LONG);
3184 OPENSSL_free(ctx->cert->psk_identity_hint);
3185 if (identity_hint != NULL) {
3186 ctx->cert->psk_identity_hint = BUF_strdup(identity_hint);
3187 if (ctx->cert->psk_identity_hint == NULL)
3190 ctx->cert->psk_identity_hint = NULL;
3194 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3199 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3200 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3203 OPENSSL_free(s->cert->psk_identity_hint);
3204 if (identity_hint != NULL) {
3205 s->cert->psk_identity_hint = BUF_strdup(identity_hint);
3206 if (s->cert->psk_identity_hint == NULL)
3209 s->cert->psk_identity_hint = NULL;
3213 const char *SSL_get_psk_identity_hint(const SSL *s)
3215 if (s == NULL || s->session == NULL)
3217 return (s->session->psk_identity_hint);
3220 const char *SSL_get_psk_identity(const SSL *s)
3222 if (s == NULL || s->session == NULL)
3224 return (s->session->psk_identity);
3227 void SSL_set_psk_client_callback(SSL *s,
3228 unsigned int (*cb) (SSL *ssl,
3237 s->psk_client_callback = cb;
3240 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3241 unsigned int (*cb) (SSL *ssl,
3250 ctx->psk_client_callback = cb;
3253 void SSL_set_psk_server_callback(SSL *s,
3254 unsigned int (*cb) (SSL *ssl,
3255 const char *identity,
3260 s->psk_server_callback = cb;
3263 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3264 unsigned int (*cb) (SSL *ssl,
3265 const char *identity,
3270 ctx->psk_server_callback = cb;
3274 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
3275 void (*cb) (int write_p, int version,
3276 int content_type, const void *buf,
3277 size_t len, SSL *ssl, void *arg))
3279 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3282 void SSL_set_msg_callback(SSL *ssl,
3283 void (*cb) (int write_p, int version,
3284 int content_type, const void *buf,
3285 size_t len, SSL *ssl, void *arg))
3287 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3290 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
3291 int (*cb) (SSL *ssl,
3295 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3296 (void (*)(void))cb);
3299 void SSL_set_not_resumable_session_callback(SSL *ssl,
3300 int (*cb) (SSL *ssl,
3301 int is_forward_secure))
3303 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3304 (void (*)(void))cb);
3308 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3309 * vairable, freeing EVP_MD_CTX previously stored in that variable, if any.
3310 * If EVP_MD pointer is passed, initializes ctx with this md Returns newly
3314 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
3316 ssl_clear_hash_ctx(hash);
3317 *hash = EVP_MD_CTX_create();
3318 if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) {
3319 EVP_MD_CTX_destroy(*hash);
3326 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3330 EVP_MD_CTX_destroy(*hash);
3334 /* Retrieve handshake hashes */
3335 int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen)
3337 unsigned char *p = out;
3342 EVP_MD_CTX_init(&ctx);
3343 for (idx = 0; ssl_get_handshake_digest(idx, &mask, &md); idx++) {
3344 if (mask & ssl_get_algorithm2(s)) {
3345 int hashsize = EVP_MD_size(md);
3346 EVP_MD_CTX *hdgst = s->s3->handshake_dgst[idx];
3347 if (!hdgst || hashsize < 0 || hashsize > outlen)
3349 if (!EVP_MD_CTX_copy_ex(&ctx, hdgst))
3351 if (!EVP_DigestFinal_ex(&ctx, p, NULL))
3359 EVP_MD_CTX_cleanup(&ctx);
3363 void SSL_set_debug(SSL *s, int debug)
3368 int SSL_cache_hit(SSL *s)
3373 int SSL_is_server(SSL *s)
3378 void SSL_set_security_level(SSL *s, int level)
3380 s->cert->sec_level = level;
3383 int SSL_get_security_level(const SSL *s)
3385 return s->cert->sec_level;
3388 void SSL_set_security_callback(SSL *s,
3389 int (*cb) (SSL *s, SSL_CTX *ctx, int op,
3390 int bits, int nid, void *other,
3393 s->cert->sec_cb = cb;
3396 int (*SSL_get_security_callback(const SSL *s)) (SSL *s, SSL_CTX *ctx, int op,
3398 void *other, void *ex) {
3399 return s->cert->sec_cb;
3402 void SSL_set0_security_ex_data(SSL *s, void *ex)
3404 s->cert->sec_ex = ex;
3407 void *SSL_get0_security_ex_data(const SSL *s)
3409 return s->cert->sec_ex;
3412 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
3414 ctx->cert->sec_level = level;
3417 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
3419 return ctx->cert->sec_level;
3422 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
3423 int (*cb) (SSL *s, SSL_CTX *ctx, int op,
3424 int bits, int nid, void *other,
3427 ctx->cert->sec_cb = cb;
3430 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (SSL *s,
3436 return ctx->cert->sec_cb;
3439 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
3441 ctx->cert->sec_ex = ex;
3444 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
3446 return ctx->cert->sec_ex;
3449 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);