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>
162 const char *SSL_version_str = OPENSSL_VERSION_TEXT;
164 SSL3_ENC_METHOD ssl3_undef_enc_method = {
166 * evil casts, but these functions are only called if there's a library
169 (int (*)(SSL *, int))ssl_undefined_function,
170 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
171 ssl_undefined_function,
172 (int (*)(SSL *, unsigned char *, unsigned char *, int))
173 ssl_undefined_function,
174 (int (*)(SSL *, int))ssl_undefined_function,
175 (int (*)(SSL *, const char *, int, unsigned char *))
176 ssl_undefined_function,
177 0, /* finish_mac_length */
178 (int (*)(SSL *, int, unsigned char *))ssl_undefined_function,
179 NULL, /* client_finished_label */
180 0, /* client_finished_label_len */
181 NULL, /* server_finished_label */
182 0, /* server_finished_label_len */
183 (int (*)(int))ssl_undefined_function,
184 (int (*)(SSL *, unsigned char *, size_t, const char *,
185 size_t, const unsigned char *, size_t,
186 int use_context))ssl_undefined_function,
189 static void clear_ciphers(SSL *s)
191 /* clear the current cipher */
192 ssl_clear_cipher_ctx(s);
193 ssl_clear_hash_ctx(&s->read_hash);
194 ssl_clear_hash_ctx(&s->write_hash);
197 int SSL_clear(SSL *s)
199 if (s->method == NULL) {
200 SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED);
204 if (ssl_clear_bad_session(s)) {
205 SSL_SESSION_free(s->session);
213 if (s->renegotiate) {
214 SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR);
220 s->state = SSL_ST_BEFORE | ((s->server) ? SSL_ST_ACCEPT : SSL_ST_CONNECT);
222 s->version = s->method->version;
223 s->client_version = s->version;
224 s->rwstate = SSL_NOTHING;
226 BUF_MEM_free(s->init_buf);
232 * Check to see if we were changed into a different method, if so, revert
233 * back if we are not doing session-id reuse.
235 if (!s->in_handshake && (s->session == NULL)
236 && (s->method != s->ctx->method)) {
237 s->method->ssl_free(s);
238 s->method = s->ctx->method;
239 if (!s->method->ssl_new(s))
242 s->method->ssl_clear(s);
244 RECORD_LAYER_clear(&s->rlayer);
249 /** Used to change an SSL_CTXs default SSL method type */
250 int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
252 STACK_OF(SSL_CIPHER) *sk;
256 sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list),
257 &(ctx->cipher_list_by_id),
258 SSL_DEFAULT_CIPHER_LIST, ctx->cert);
259 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
260 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,
261 SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
267 SSL *SSL_new(SSL_CTX *ctx)
272 SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);
275 if (ctx->method == NULL) {
276 SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
280 s = OPENSSL_malloc(sizeof(*s));
283 memset(s, 0, sizeof(*s));
285 RECORD_LAYER_init(&s->rlayer, s);
287 s->options = ctx->options;
289 s->max_cert_list = ctx->max_cert_list;
292 * Earlier library versions used to copy the pointer to the CERT, not
293 * its contents; only when setting new parameters for the per-SSL
294 * copy, ssl_cert_new would be called (and the direct reference to
295 * the per-SSL_CTX settings would be lost, but those still were
296 * indirectly accessed for various purposes, and for that reason they
297 * used to be known as s->ctx->default_cert). Now we don't look at the
298 * SSL_CTX's CERT after having duplicated it once.
300 s->cert = ssl_cert_dup(ctx->cert);
304 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
305 s->msg_callback = ctx->msg_callback;
306 s->msg_callback_arg = ctx->msg_callback_arg;
307 s->verify_mode = ctx->verify_mode;
308 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
309 s->sid_ctx_length = ctx->sid_ctx_length;
310 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
311 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
312 s->verify_callback = ctx->default_verify_callback;
313 s->generate_session_id = ctx->generate_session_id;
315 s->param = X509_VERIFY_PARAM_new();
318 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
319 s->quiet_shutdown = ctx->quiet_shutdown;
320 s->max_send_fragment = ctx->max_send_fragment;
322 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
324 s->tlsext_debug_cb = 0;
325 s->tlsext_debug_arg = NULL;
326 s->tlsext_ticket_expected = 0;
327 s->tlsext_status_type = -1;
328 s->tlsext_status_expected = 0;
329 s->tlsext_ocsp_ids = NULL;
330 s->tlsext_ocsp_exts = NULL;
331 s->tlsext_ocsp_resp = NULL;
332 s->tlsext_ocsp_resplen = -1;
333 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
334 s->initial_ctx = ctx;
335 # ifndef OPENSSL_NO_EC
336 if (ctx->tlsext_ecpointformatlist) {
337 s->tlsext_ecpointformatlist =
338 BUF_memdup(ctx->tlsext_ecpointformatlist,
339 ctx->tlsext_ecpointformatlist_length);
340 if (!s->tlsext_ecpointformatlist)
342 s->tlsext_ecpointformatlist_length =
343 ctx->tlsext_ecpointformatlist_length;
345 if (ctx->tlsext_ellipticcurvelist) {
346 s->tlsext_ellipticcurvelist =
347 BUF_memdup(ctx->tlsext_ellipticcurvelist,
348 ctx->tlsext_ellipticcurvelist_length);
349 if (!s->tlsext_ellipticcurvelist)
351 s->tlsext_ellipticcurvelist_length =
352 ctx->tlsext_ellipticcurvelist_length;
355 # ifndef OPENSSL_NO_NEXTPROTONEG
356 s->next_proto_negotiated = NULL;
359 if (s->ctx->alpn_client_proto_list) {
360 s->alpn_client_proto_list =
361 OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);
362 if (s->alpn_client_proto_list == NULL)
364 memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,
365 s->ctx->alpn_client_proto_list_len);
366 s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;
369 s->verify_result = X509_V_OK;
371 s->method = ctx->method;
373 if (!s->method->ssl_new(s))
377 s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;
382 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
384 #ifndef OPENSSL_NO_PSK
385 s->psk_client_callback = ctx->psk_client_callback;
386 s->psk_server_callback = ctx->psk_server_callback;
392 SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
396 int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
397 unsigned int sid_ctx_len)
399 if (sid_ctx_len > sizeof ctx->sid_ctx) {
400 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,
401 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
404 ctx->sid_ctx_length = sid_ctx_len;
405 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
410 int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
411 unsigned int sid_ctx_len)
413 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
414 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,
415 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
418 ssl->sid_ctx_length = sid_ctx_len;
419 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len);
424 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
426 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
427 ctx->generate_session_id = cb;
428 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
432 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
434 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
435 ssl->generate_session_id = cb;
436 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
440 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
444 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
445 * we can "construct" a session to give us the desired check - ie. to
446 * find if there's a session in the hash table that would conflict with
447 * any new session built out of this id/id_len and the ssl_version in use
452 if (id_len > sizeof r.session_id)
455 r.ssl_version = ssl->version;
456 r.session_id_length = id_len;
457 memcpy(r.session_id, id, id_len);
459 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
460 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
461 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
465 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
467 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
470 int SSL_set_purpose(SSL *s, int purpose)
472 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
475 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
477 return X509_VERIFY_PARAM_set_trust(s->param, trust);
480 int SSL_set_trust(SSL *s, int trust)
482 return X509_VERIFY_PARAM_set_trust(s->param, trust);
485 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
487 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
490 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
492 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
495 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
500 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
505 void SSL_certs_clear(SSL *s)
507 ssl_cert_clear_certs(s->cert);
510 void SSL_free(SSL *s)
517 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL);
525 fprintf(stderr, "SSL_free, bad reference count\n");
530 X509_VERIFY_PARAM_free(s->param);
531 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
533 if (s->bbio != NULL) {
534 /* If the buffering BIO is in place, pop it off */
535 if (s->bbio == s->wbio) {
536 s->wbio = BIO_pop(s->wbio);
541 BIO_free_all(s->rbio);
542 if (s->wbio != s->rbio)
543 BIO_free_all(s->wbio);
545 BUF_MEM_free(s->init_buf);
547 /* add extra stuff */
548 sk_SSL_CIPHER_free(s->cipher_list);
549 sk_SSL_CIPHER_free(s->cipher_list_by_id);
551 /* Make the next call work :-) */
552 if (s->session != NULL) {
553 ssl_clear_bad_session(s);
554 SSL_SESSION_free(s->session);
559 ssl_cert_free(s->cert);
560 /* Free up if allocated */
562 OPENSSL_free(s->tlsext_hostname);
563 SSL_CTX_free(s->initial_ctx);
564 #ifndef OPENSSL_NO_EC
565 OPENSSL_free(s->tlsext_ecpointformatlist);
566 OPENSSL_free(s->tlsext_ellipticcurvelist);
567 #endif /* OPENSSL_NO_EC */
568 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free);
569 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
570 OPENSSL_free(s->tlsext_ocsp_resp);
571 OPENSSL_free(s->alpn_client_proto_list);
573 sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free);
575 if (s->method != NULL)
576 s->method->ssl_free(s);
578 RECORD_LAYER_release(&s->rlayer);
580 SSL_CTX_free(s->ctx);
582 #if !defined(OPENSSL_NO_NEXTPROTONEG)
583 OPENSSL_free(s->next_proto_negotiated);
586 #ifndef OPENSSL_NO_SRTP
587 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
593 void SSL_set_rbio(SSL *s, BIO *rbio)
596 BIO_free_all(s->rbio);
600 void SSL_set_wbio(SSL *s, BIO *wbio)
603 * If the output buffering BIO is still in place, remove it
605 if (s->bbio != NULL) {
606 if (s->wbio == s->bbio) {
607 s->wbio = s->wbio->next_bio;
608 s->bbio->next_bio = NULL;
611 if (s->wbio != wbio && s->rbio != s->wbio)
612 BIO_free_all(s->wbio);
616 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
618 SSL_set_wbio(s, wbio);
619 SSL_set_rbio(s, rbio);
622 BIO *SSL_get_rbio(const SSL *s)
627 BIO *SSL_get_wbio(const SSL *s)
632 int SSL_get_fd(const SSL *s)
634 return (SSL_get_rfd(s));
637 int SSL_get_rfd(const SSL *s)
643 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
649 int SSL_get_wfd(const SSL *s)
655 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
661 #ifndef OPENSSL_NO_SOCK
662 int SSL_set_fd(SSL *s, int fd)
667 bio = BIO_new(BIO_s_socket());
670 SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB);
673 BIO_set_fd(bio, fd, BIO_NOCLOSE);
674 SSL_set_bio(s, bio, bio);
680 int SSL_set_wfd(SSL *s, int fd)
685 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
686 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) {
687 bio = BIO_new(BIO_s_socket());
690 SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB);
693 BIO_set_fd(bio, fd, BIO_NOCLOSE);
694 SSL_set_bio(s, SSL_get_rbio(s), bio);
696 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s));
702 int SSL_set_rfd(SSL *s, int fd)
707 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
708 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) {
709 bio = BIO_new(BIO_s_socket());
712 SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB);
715 BIO_set_fd(bio, fd, BIO_NOCLOSE);
716 SSL_set_bio(s, bio, SSL_get_wbio(s));
718 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s));
725 /* return length of latest Finished message we sent, copy to 'buf' */
726 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
731 ret = s->s3->tmp.finish_md_len;
734 memcpy(buf, s->s3->tmp.finish_md, count);
739 /* return length of latest Finished message we expected, copy to 'buf' */
740 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
745 ret = s->s3->tmp.peer_finish_md_len;
748 memcpy(buf, s->s3->tmp.peer_finish_md, count);
753 int SSL_get_verify_mode(const SSL *s)
755 return (s->verify_mode);
758 int SSL_get_verify_depth(const SSL *s)
760 return X509_VERIFY_PARAM_get_depth(s->param);
763 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
764 return (s->verify_callback);
767 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
769 return (ctx->verify_mode);
772 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
774 return X509_VERIFY_PARAM_get_depth(ctx->param);
777 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
778 return (ctx->default_verify_callback);
781 void SSL_set_verify(SSL *s, int mode,
782 int (*callback) (int ok, X509_STORE_CTX *ctx))
784 s->verify_mode = mode;
785 if (callback != NULL)
786 s->verify_callback = callback;
789 void SSL_set_verify_depth(SSL *s, int depth)
791 X509_VERIFY_PARAM_set_depth(s->param, depth);
794 void SSL_set_read_ahead(SSL *s, int yes)
796 RECORD_LAYER_set_read_ahead(&s->rlayer, yes);
799 int SSL_get_read_ahead(const SSL *s)
801 return RECORD_LAYER_get_read_ahead(&s->rlayer);
804 int SSL_pending(const SSL *s)
807 * SSL_pending cannot work properly if read-ahead is enabled
808 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
809 * impossible to fix since SSL_pending cannot report errors that may be
810 * observed while scanning the new data. (Note that SSL_pending() is
811 * often used as a boolean value, so we'd better not return -1.)
813 return (s->method->ssl_pending(s));
816 X509 *SSL_get_peer_certificate(const SSL *s)
820 if ((s == NULL) || (s->session == NULL))
823 r = s->session->peer;
828 CRYPTO_add(&r->references, 1, CRYPTO_LOCK_X509);
833 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
837 if ((s == NULL) || (s->session == NULL)
838 || (s->session->sess_cert == NULL))
841 r = s->session->sess_cert->cert_chain;
844 * If we are a client, cert_chain includes the peer's own certificate; if
845 * we are a server, it does not.
852 * Now in theory, since the calling process own 't' it should be safe to
853 * modify. We need to be able to read f without being hassled
855 int SSL_copy_session_id(SSL *t, const SSL *f)
857 /* Do we need to to SSL locking? */
858 if (!SSL_set_session(t, SSL_get_session(f))) {
863 * what if we are setup as SSLv2 but want to talk SSLv3 or vice-versa
865 if (t->method != f->method) {
866 t->method->ssl_free(t); /* cleanup current */
867 t->method = f->method; /* change method */
868 t->method->ssl_new(t); /* setup new */
871 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT);
872 ssl_cert_free(t->cert);
874 if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) {
881 /* Fix this so it checks all the valid key/cert options */
882 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
885 (ctx->cert->key->x509 == NULL)) {
886 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
887 SSL_R_NO_CERTIFICATE_ASSIGNED);
890 if (ctx->cert->key->privatekey == NULL) {
891 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
892 SSL_R_NO_PRIVATE_KEY_ASSIGNED);
895 return (X509_check_private_key
896 (ctx->cert->key->x509, ctx->cert->key->privatekey));
899 /* Fix this function so that it takes an optional type parameter */
900 int SSL_check_private_key(const SSL *ssl)
903 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
906 if (ssl->cert->key->x509 == NULL) {
907 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
910 if (ssl->cert->key->privatekey == NULL) {
911 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
914 return (X509_check_private_key(ssl->cert->key->x509,
915 ssl->cert->key->privatekey));
918 int SSL_accept(SSL *s)
920 if (s->handshake_func == 0)
921 /* Not properly initialized yet */
922 SSL_set_accept_state(s);
924 return (s->method->ssl_accept(s));
927 int SSL_connect(SSL *s)
929 if (s->handshake_func == 0)
930 /* Not properly initialized yet */
931 SSL_set_connect_state(s);
933 return (s->method->ssl_connect(s));
936 long SSL_get_default_timeout(const SSL *s)
938 return (s->method->get_timeout());
941 int SSL_read(SSL *s, void *buf, int num)
943 if (s->handshake_func == 0) {
944 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
948 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
949 s->rwstate = SSL_NOTHING;
952 return (s->method->ssl_read(s, buf, num));
955 int SSL_peek(SSL *s, void *buf, int num)
957 if (s->handshake_func == 0) {
958 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
962 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
965 return (s->method->ssl_peek(s, buf, num));
968 int SSL_write(SSL *s, const void *buf, int num)
970 if (s->handshake_func == 0) {
971 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
975 if (s->shutdown & SSL_SENT_SHUTDOWN) {
976 s->rwstate = SSL_NOTHING;
977 SSLerr(SSL_F_SSL_WRITE, SSL_R_PROTOCOL_IS_SHUTDOWN);
980 return (s->method->ssl_write(s, buf, num));
983 int SSL_shutdown(SSL *s)
986 * Note that this function behaves differently from what one might
987 * expect. Return values are 0 for no success (yet), 1 for success; but
988 * calling it once is usually not enough, even if blocking I/O is used
989 * (see ssl3_shutdown).
992 if (s->handshake_func == 0) {
993 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
997 if ((s != NULL) && !SSL_in_init(s))
998 return (s->method->ssl_shutdown(s));
1003 int SSL_renegotiate(SSL *s)
1005 if (s->renegotiate == 0)
1010 return (s->method->ssl_renegotiate(s));
1013 int SSL_renegotiate_abbreviated(SSL *s)
1015 if (s->renegotiate == 0)
1020 return (s->method->ssl_renegotiate(s));
1023 int SSL_renegotiate_pending(SSL *s)
1026 * becomes true when negotiation is requested; false again once a
1027 * handshake has finished
1029 return (s->renegotiate != 0);
1032 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
1037 case SSL_CTRL_GET_READ_AHEAD:
1038 return (RECORD_LAYER_get_read_ahead(&s->rlayer));
1039 case SSL_CTRL_SET_READ_AHEAD:
1040 l = RECORD_LAYER_get_read_ahead(&s->rlayer);
1041 RECORD_LAYER_set_read_ahead(&s->rlayer, larg);
1044 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1045 s->msg_callback_arg = parg;
1048 case SSL_CTRL_OPTIONS:
1049 return (s->options |= larg);
1050 case SSL_CTRL_CLEAR_OPTIONS:
1051 return (s->options &= ~larg);
1053 return (s->mode |= larg);
1054 case SSL_CTRL_CLEAR_MODE:
1055 return (s->mode &= ~larg);
1056 case SSL_CTRL_GET_MAX_CERT_LIST:
1057 return (s->max_cert_list);
1058 case SSL_CTRL_SET_MAX_CERT_LIST:
1059 l = s->max_cert_list;
1060 s->max_cert_list = larg;
1062 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1063 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1065 s->max_send_fragment = larg;
1067 case SSL_CTRL_GET_RI_SUPPORT:
1069 return s->s3->send_connection_binding;
1072 case SSL_CTRL_CERT_FLAGS:
1073 return (s->cert->cert_flags |= larg);
1074 case SSL_CTRL_CLEAR_CERT_FLAGS:
1075 return (s->cert->cert_flags &= ~larg);
1077 case SSL_CTRL_GET_RAW_CIPHERLIST:
1079 if (s->s3->tmp.ciphers_raw == NULL)
1081 *(unsigned char **)parg = s->s3->tmp.ciphers_raw;
1082 return (int)s->s3->tmp.ciphers_rawlen;
1084 return ssl_put_cipher_by_char(s, NULL, NULL);
1085 case SSL_CTRL_GET_EXTMS_SUPPORT:
1086 if (!s->session || SSL_in_init(s) || s->in_handshake)
1088 if (s->session->flags & SSL_SESS_FLAG_EXTMS)
1093 return (s->method->ssl_ctrl(s, cmd, larg, parg));
1097 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
1100 case SSL_CTRL_SET_MSG_CALLBACK:
1101 s->msg_callback = (void (*)
1102 (int write_p, int version, int content_type,
1103 const void *buf, size_t len, SSL *ssl,
1108 return (s->method->ssl_callback_ctrl(s, cmd, fp));
1112 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1114 return ctx->sessions;
1117 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
1120 /* For some cases with ctx == NULL perform syntax checks */
1123 #ifndef OPENSSL_NO_EC
1124 case SSL_CTRL_SET_CURVES_LIST:
1125 return tls1_set_curves_list(NULL, NULL, parg);
1127 case SSL_CTRL_SET_SIGALGS_LIST:
1128 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
1129 return tls1_set_sigalgs_list(NULL, parg, 0);
1136 case SSL_CTRL_GET_READ_AHEAD:
1137 return (ctx->read_ahead);
1138 case SSL_CTRL_SET_READ_AHEAD:
1139 l = ctx->read_ahead;
1140 ctx->read_ahead = larg;
1143 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1144 ctx->msg_callback_arg = parg;
1147 case SSL_CTRL_GET_MAX_CERT_LIST:
1148 return (ctx->max_cert_list);
1149 case SSL_CTRL_SET_MAX_CERT_LIST:
1150 l = ctx->max_cert_list;
1151 ctx->max_cert_list = larg;
1154 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1155 l = ctx->session_cache_size;
1156 ctx->session_cache_size = larg;
1158 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1159 return (ctx->session_cache_size);
1160 case SSL_CTRL_SET_SESS_CACHE_MODE:
1161 l = ctx->session_cache_mode;
1162 ctx->session_cache_mode = larg;
1164 case SSL_CTRL_GET_SESS_CACHE_MODE:
1165 return (ctx->session_cache_mode);
1167 case SSL_CTRL_SESS_NUMBER:
1168 return (lh_SSL_SESSION_num_items(ctx->sessions));
1169 case SSL_CTRL_SESS_CONNECT:
1170 return (ctx->stats.sess_connect);
1171 case SSL_CTRL_SESS_CONNECT_GOOD:
1172 return (ctx->stats.sess_connect_good);
1173 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1174 return (ctx->stats.sess_connect_renegotiate);
1175 case SSL_CTRL_SESS_ACCEPT:
1176 return (ctx->stats.sess_accept);
1177 case SSL_CTRL_SESS_ACCEPT_GOOD:
1178 return (ctx->stats.sess_accept_good);
1179 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1180 return (ctx->stats.sess_accept_renegotiate);
1181 case SSL_CTRL_SESS_HIT:
1182 return (ctx->stats.sess_hit);
1183 case SSL_CTRL_SESS_CB_HIT:
1184 return (ctx->stats.sess_cb_hit);
1185 case SSL_CTRL_SESS_MISSES:
1186 return (ctx->stats.sess_miss);
1187 case SSL_CTRL_SESS_TIMEOUTS:
1188 return (ctx->stats.sess_timeout);
1189 case SSL_CTRL_SESS_CACHE_FULL:
1190 return (ctx->stats.sess_cache_full);
1191 case SSL_CTRL_OPTIONS:
1192 return (ctx->options |= larg);
1193 case SSL_CTRL_CLEAR_OPTIONS:
1194 return (ctx->options &= ~larg);
1196 return (ctx->mode |= larg);
1197 case SSL_CTRL_CLEAR_MODE:
1198 return (ctx->mode &= ~larg);
1199 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1200 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1202 ctx->max_send_fragment = larg;
1204 case SSL_CTRL_CERT_FLAGS:
1205 return (ctx->cert->cert_flags |= larg);
1206 case SSL_CTRL_CLEAR_CERT_FLAGS:
1207 return (ctx->cert->cert_flags &= ~larg);
1209 return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg));
1213 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
1216 case SSL_CTRL_SET_MSG_CALLBACK:
1217 ctx->msg_callback = (void (*)
1218 (int write_p, int version, int content_type,
1219 const void *buf, size_t len, SSL *ssl,
1224 return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp));
1228 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1236 return ((l > 0) ? 1 : -1);
1239 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
1240 const SSL_CIPHER *const *bp)
1244 l = (*ap)->id - (*bp)->id;
1248 return ((l > 0) ? 1 : -1);
1251 /** return a STACK of the ciphers available for the SSL and in order of
1253 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1256 if (s->cipher_list != NULL) {
1257 return (s->cipher_list);
1258 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
1259 return (s->ctx->cipher_list);
1265 STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
1267 if ((s == NULL) || (s->session == NULL) || !s->server)
1269 return s->session->ciphers;
1272 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
1274 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
1276 ciphers = SSL_get_ciphers(s);
1279 ssl_set_client_disabled(s);
1280 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
1281 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
1282 if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED)) {
1284 sk = sk_SSL_CIPHER_new_null();
1287 if (!sk_SSL_CIPHER_push(sk, c)) {
1288 sk_SSL_CIPHER_free(sk);
1296 /** return a STACK of the ciphers available for the SSL and in order of
1298 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1301 if (s->cipher_list_by_id != NULL) {
1302 return (s->cipher_list_by_id);
1303 } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) {
1304 return (s->ctx->cipher_list_by_id);
1310 /** The old interface to get the same thing as SSL_get_ciphers() */
1311 const char *SSL_get_cipher_list(const SSL *s, int n)
1314 STACK_OF(SSL_CIPHER) *sk;
1318 sk = SSL_get_ciphers(s);
1319 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1321 c = sk_SSL_CIPHER_value(sk, n);
1327 /** specify the ciphers to be used by default by the SSL_CTX */
1328 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1330 STACK_OF(SSL_CIPHER) *sk;
1332 sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list,
1333 &ctx->cipher_list_by_id, str, ctx->cert);
1335 * ssl_create_cipher_list may return an empty stack if it was unable to
1336 * find a cipher matching the given rule string (for example if the rule
1337 * string specifies a cipher which has been disabled). This is not an
1338 * error as far as ssl_create_cipher_list is concerned, and hence
1339 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
1343 else if (sk_SSL_CIPHER_num(sk) == 0) {
1344 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1350 /** specify the ciphers to be used by the SSL */
1351 int SSL_set_cipher_list(SSL *s, const char *str)
1353 STACK_OF(SSL_CIPHER) *sk;
1355 sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list,
1356 &s->cipher_list_by_id, str, s->cert);
1357 /* see comment in SSL_CTX_set_cipher_list */
1360 else if (sk_SSL_CIPHER_num(sk) == 0) {
1361 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1367 /* works well for SSLv2, not so good for SSLv3 */
1368 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len)
1371 STACK_OF(SSL_CIPHER) *sk;
1375 if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2))
1379 sk = s->session->ciphers;
1381 if (sk_SSL_CIPHER_num(sk) == 0)
1384 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
1387 c = sk_SSL_CIPHER_value(sk, i);
1388 n = strlen(c->name);
1404 /** return a servername extension value if provided in Client Hello, or NULL.
1405 * So far, only host_name types are defined (RFC 3546).
1408 const char *SSL_get_servername(const SSL *s, const int type)
1410 if (type != TLSEXT_NAMETYPE_host_name)
1413 return s->session && !s->tlsext_hostname ?
1414 s->session->tlsext_hostname : s->tlsext_hostname;
1417 int SSL_get_servername_type(const SSL *s)
1420 && (!s->tlsext_hostname ? s->session->
1421 tlsext_hostname : s->tlsext_hostname))
1422 return TLSEXT_NAMETYPE_host_name;
1427 * SSL_select_next_proto implements the standard protocol selection. It is
1428 * expected that this function is called from the callback set by
1429 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
1430 * vector of 8-bit, length prefixed byte strings. The length byte itself is
1431 * not included in the length. A byte string of length 0 is invalid. No byte
1432 * string may be truncated. The current, but experimental algorithm for
1433 * selecting the protocol is: 1) If the server doesn't support NPN then this
1434 * is indicated to the callback. In this case, the client application has to
1435 * abort the connection or have a default application level protocol. 2) If
1436 * the server supports NPN, but advertises an empty list then the client
1437 * selects the first protcol in its list, but indicates via the API that this
1438 * fallback case was enacted. 3) Otherwise, the client finds the first
1439 * protocol in the server's list that it supports and selects this protocol.
1440 * This is because it's assumed that the server has better information about
1441 * which protocol a client should use. 4) If the client doesn't support any
1442 * of the server's advertised protocols, then this is treated the same as
1443 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
1444 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1446 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
1447 const unsigned char *server,
1448 unsigned int server_len,
1449 const unsigned char *client,
1450 unsigned int client_len)
1453 const unsigned char *result;
1454 int status = OPENSSL_NPN_UNSUPPORTED;
1457 * For each protocol in server preference order, see if we support it.
1459 for (i = 0; i < server_len;) {
1460 for (j = 0; j < client_len;) {
1461 if (server[i] == client[j] &&
1462 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
1463 /* We found a match */
1464 result = &server[i];
1465 status = OPENSSL_NPN_NEGOTIATED;
1475 /* There's no overlap between our protocols and the server's list. */
1477 status = OPENSSL_NPN_NO_OVERLAP;
1480 *out = (unsigned char *)result + 1;
1481 *outlen = result[0];
1485 #ifndef OPENSSL_NO_NEXTPROTONEG
1487 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
1488 * client's requested protocol for this connection and returns 0. If the
1489 * client didn't request any protocol, then *data is set to NULL. Note that
1490 * the client can request any protocol it chooses. The value returned from
1491 * this function need not be a member of the list of supported protocols
1492 * provided by the callback.
1494 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
1497 *data = s->next_proto_negotiated;
1501 *len = s->next_proto_negotiated_len;
1506 * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when
1507 * a TLS server needs a list of supported protocols for Next Protocol
1508 * Negotiation. The returned list must be in wire format. The list is
1509 * returned by setting |out| to point to it and |outlen| to its length. This
1510 * memory will not be modified, but one should assume that the SSL* keeps a
1511 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
1512 * wishes to advertise. Otherwise, no such extension will be included in the
1515 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx,
1516 int (*cb) (SSL *ssl,
1519 unsigned int *outlen,
1520 void *arg), void *arg)
1522 ctx->next_protos_advertised_cb = cb;
1523 ctx->next_protos_advertised_cb_arg = arg;
1527 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1528 * client needs to select a protocol from the server's provided list. |out|
1529 * must be set to point to the selected protocol (which may be within |in|).
1530 * The length of the protocol name must be written into |outlen|. The
1531 * server's advertised protocols are provided in |in| and |inlen|. The
1532 * callback can assume that |in| is syntactically valid. The client must
1533 * select a protocol. It is fatal to the connection if this callback returns
1534 * a value other than SSL_TLSEXT_ERR_OK.
1536 void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx,
1537 int (*cb) (SSL *s, unsigned char **out,
1538 unsigned char *outlen,
1539 const unsigned char *in,
1541 void *arg), void *arg)
1543 ctx->next_proto_select_cb = cb;
1544 ctx->next_proto_select_cb_arg = arg;
1549 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
1550 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1551 * length-prefixed strings). Returns 0 on success.
1553 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
1554 unsigned protos_len)
1556 OPENSSL_free(ctx->alpn_client_proto_list);
1557 ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1558 if (!ctx->alpn_client_proto_list)
1560 memcpy(ctx->alpn_client_proto_list, protos, protos_len);
1561 ctx->alpn_client_proto_list_len = protos_len;
1567 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
1568 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1569 * length-prefixed strings). Returns 0 on success.
1571 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
1572 unsigned protos_len)
1574 OPENSSL_free(ssl->alpn_client_proto_list);
1575 ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1576 if (!ssl->alpn_client_proto_list)
1578 memcpy(ssl->alpn_client_proto_list, protos, protos_len);
1579 ssl->alpn_client_proto_list_len = protos_len;
1585 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
1586 * called during ClientHello processing in order to select an ALPN protocol
1587 * from the client's list of offered protocols.
1589 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
1590 int (*cb) (SSL *ssl,
1591 const unsigned char **out,
1592 unsigned char *outlen,
1593 const unsigned char *in,
1595 void *arg), void *arg)
1597 ctx->alpn_select_cb = cb;
1598 ctx->alpn_select_cb_arg = arg;
1602 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from
1603 * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name
1604 * (not including the leading length-prefix byte). If the server didn't
1605 * respond with a negotiated protocol then |*len| will be zero.
1607 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
1612 *data = ssl->s3->alpn_selected;
1616 *len = ssl->s3->alpn_selected_len;
1620 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1621 const char *label, size_t llen,
1622 const unsigned char *p, size_t plen,
1625 if (s->version < TLS1_VERSION)
1628 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
1633 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1638 ((unsigned int)a->session_id[0]) |
1639 ((unsigned int)a->session_id[1] << 8L) |
1640 ((unsigned long)a->session_id[2] << 16L) |
1641 ((unsigned long)a->session_id[3] << 24L);
1646 * NB: If this function (or indeed the hash function which uses a sort of
1647 * coarser function than this one) is changed, ensure
1648 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
1649 * being able to construct an SSL_SESSION that will collide with any existing
1650 * session with a matching session ID.
1652 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
1654 if (a->ssl_version != b->ssl_version)
1656 if (a->session_id_length != b->session_id_length)
1658 return (memcmp(a->session_id, b->session_id, a->session_id_length));
1662 * These wrapper functions should remain rather than redeclaring
1663 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1664 * variable. The reason is that the functions aren't static, they're exposed
1667 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1668 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1670 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1672 SSL_CTX *ret = NULL;
1675 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED);
1679 if (FIPS_mode() && (meth->version < TLS1_VERSION)) {
1680 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1684 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
1685 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1688 ret = OPENSSL_malloc(sizeof(*ret));
1692 memset(ret, 0, sizeof(*ret));
1696 ret->cert_store = NULL;
1697 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
1698 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1699 ret->session_cache_head = NULL;
1700 ret->session_cache_tail = NULL;
1702 /* We take the system default */
1703 ret->session_timeout = meth->get_timeout();
1705 ret->new_session_cb = 0;
1706 ret->remove_session_cb = 0;
1707 ret->get_session_cb = 0;
1708 ret->generate_session_id = 0;
1710 memset(&ret->stats, 0, sizeof(ret->stats));
1712 ret->references = 1;
1713 ret->quiet_shutdown = 0;
1714 ret->info_callback = NULL;
1715 ret->app_verify_callback = 0;
1716 ret->app_verify_arg = NULL;
1717 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
1718 ret->read_ahead = 0;
1719 ret->msg_callback = 0;
1720 ret->msg_callback_arg = NULL;
1721 ret->verify_mode = SSL_VERIFY_NONE;
1722 ret->sid_ctx_length = 0;
1723 ret->default_verify_callback = NULL;
1724 if ((ret->cert = ssl_cert_new()) == NULL)
1727 ret->default_passwd_callback = 0;
1728 ret->default_passwd_callback_userdata = NULL;
1729 ret->client_cert_cb = 0;
1730 ret->app_gen_cookie_cb = 0;
1731 ret->app_verify_cookie_cb = 0;
1733 ret->sessions = lh_SSL_SESSION_new();
1734 if (ret->sessions == NULL)
1736 ret->cert_store = X509_STORE_new();
1737 if (ret->cert_store == NULL)
1740 if (!ssl_create_cipher_list(ret->method,
1741 &ret->cipher_list, &ret->cipher_list_by_id,
1742 SSL_DEFAULT_CIPHER_LIST, ret->cert)
1743 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
1744 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);
1748 ret->param = X509_VERIFY_PARAM_new();
1752 if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {
1753 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1756 if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) {
1757 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1761 if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL)
1764 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1766 ret->extra_certs = NULL;
1767 /* No compression for DTLS */
1768 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
1769 ret->comp_methods = SSL_COMP_get_compression_methods();
1771 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1773 ret->tlsext_servername_callback = 0;
1774 ret->tlsext_servername_arg = NULL;
1775 /* Setup RFC4507 ticket keys */
1776 if ((RAND_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1777 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1778 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1779 ret->options |= SSL_OP_NO_TICKET;
1781 ret->tlsext_status_cb = 0;
1782 ret->tlsext_status_arg = NULL;
1784 #ifndef OPENSSL_NO_NEXTPROTONEG
1785 ret->next_protos_advertised_cb = 0;
1786 ret->next_proto_select_cb = 0;
1788 #ifndef OPENSSL_NO_PSK
1789 ret->psk_identity_hint = NULL;
1790 ret->psk_client_callback = NULL;
1791 ret->psk_server_callback = NULL;
1793 #ifndef OPENSSL_NO_SRP
1794 if (!SSL_CTX_SRP_CTX_init(ret))
1797 #ifndef OPENSSL_NO_ENGINE
1798 ret->client_cert_engine = NULL;
1799 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1800 # define eng_strx(x) #x
1801 # define eng_str(x) eng_strx(x)
1802 /* Use specific client engine automatically... ignore errors */
1805 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1808 ENGINE_load_builtin_engines();
1809 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1811 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
1817 * Default is to connect to non-RI servers. When RI is more widely
1818 * deployed might change this.
1820 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
1824 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
1830 void SSL_CTX_free(SSL_CTX *a)
1837 i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_SSL_CTX);
1839 REF_PRINT("SSL_CTX", a);
1845 fprintf(stderr, "SSL_CTX_free, bad reference count\n");
1850 X509_VERIFY_PARAM_free(a->param);
1853 * Free internal session cache. However: the remove_cb() may reference
1854 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1855 * after the sessions were flushed.
1856 * As the ex_data handling routines might also touch the session cache,
1857 * the most secure solution seems to be: empty (flush) the cache, then
1858 * free ex_data, then finally free the cache.
1859 * (See ticket [openssl.org #212].)
1861 if (a->sessions != NULL)
1862 SSL_CTX_flush_sessions(a, 0);
1864 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1865 lh_SSL_SESSION_free(a->sessions);
1866 X509_STORE_free(a->cert_store);
1867 sk_SSL_CIPHER_free(a->cipher_list);
1868 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1869 ssl_cert_free(a->cert);
1870 sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free);
1871 sk_X509_pop_free(a->extra_certs, X509_free);
1872 a->comp_methods = NULL;
1873 #ifndef OPENSSL_NO_SRTP
1874 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
1876 #ifndef OPENSSL_NO_PSK
1877 OPENSSL_free(a->psk_identity_hint);
1879 #ifndef OPENSSL_NO_SRP
1880 SSL_CTX_SRP_CTX_free(a);
1882 #ifndef OPENSSL_NO_ENGINE
1883 if (a->client_cert_engine)
1884 ENGINE_finish(a->client_cert_engine);
1887 #ifndef OPENSSL_NO_EC
1888 OPENSSL_free(a->tlsext_ecpointformatlist);
1889 OPENSSL_free(a->tlsext_ellipticcurvelist);
1891 OPENSSL_free(a->alpn_client_proto_list);
1896 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1898 ctx->default_passwd_callback = cb;
1901 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
1903 ctx->default_passwd_callback_userdata = u;
1906 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
1907 int (*cb) (X509_STORE_CTX *, void *),
1910 ctx->app_verify_callback = cb;
1911 ctx->app_verify_arg = arg;
1914 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
1915 int (*cb) (int, X509_STORE_CTX *))
1917 ctx->verify_mode = mode;
1918 ctx->default_verify_callback = cb;
1921 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
1923 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
1926 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg),
1929 ssl_cert_set_cert_cb(c->cert, cb, arg);
1932 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
1934 ssl_cert_set_cert_cb(s->cert, cb, arg);
1937 void ssl_set_masks(SSL *s, const SSL_CIPHER *cipher)
1941 int *pvalid = s->s3->tmp.valid_flags;
1942 int rsa_enc, rsa_tmp, rsa_sign, dh_tmp, dh_rsa, dh_dsa, dsa_sign;
1943 int rsa_enc_export, dh_rsa_export, dh_dsa_export;
1944 int rsa_tmp_export, dh_tmp_export, kl;
1945 unsigned long mask_k, mask_a, emask_k, emask_a;
1946 #ifndef OPENSSL_NO_EC
1947 int have_ecc_cert, ecdsa_ok, ecc_pkey_size;
1948 int have_ecdh_tmp, ecdh_ok;
1950 EVP_PKEY *ecc_pkey = NULL;
1951 int signature_nid = 0, pk_nid = 0, md_nid = 0;
1956 kl = SSL_C_EXPORT_PKEYLENGTH(cipher);
1958 #ifndef OPENSSL_NO_RSA
1959 rsa_tmp = (c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1960 rsa_tmp_export = (c->rsa_tmp_cb != NULL ||
1961 (rsa_tmp && RSA_size(c->rsa_tmp) * 8 <= kl));
1963 rsa_tmp = rsa_tmp_export = 0;
1965 #ifndef OPENSSL_NO_DH
1966 dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto);
1967 dh_tmp_export = !c->dh_tmp_auto && (c->dh_tmp_cb != NULL ||
1969 && DH_size(c->dh_tmp) * 8 <= kl));
1971 dh_tmp = dh_tmp_export = 0;
1974 #ifndef OPENSSL_NO_EC
1975 have_ecdh_tmp = (c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
1977 cpk = &(c->pkeys[SSL_PKEY_RSA_ENC]);
1978 rsa_enc = pvalid[SSL_PKEY_RSA_ENC] & CERT_PKEY_VALID;
1979 rsa_enc_export = (rsa_enc && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
1980 cpk = &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1981 rsa_sign = pvalid[SSL_PKEY_RSA_SIGN] & CERT_PKEY_SIGN;
1982 cpk = &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1983 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_SIGN;
1984 cpk = &(c->pkeys[SSL_PKEY_DH_RSA]);
1985 dh_rsa = pvalid[SSL_PKEY_DH_RSA] & CERT_PKEY_VALID;
1986 dh_rsa_export = (dh_rsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
1987 cpk = &(c->pkeys[SSL_PKEY_DH_DSA]);
1988 dh_dsa = pvalid[SSL_PKEY_DH_DSA] & CERT_PKEY_VALID;
1989 dh_dsa_export = (dh_dsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
1990 cpk = &(c->pkeys[SSL_PKEY_ECC]);
1991 #ifndef OPENSSL_NO_EC
1992 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
2001 "rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2002 rsa_tmp, rsa_tmp_export, dh_tmp, have_ecdh_tmp, rsa_enc,
2003 rsa_enc_export, rsa_sign, dsa_sign, dh_rsa, dh_dsa);
2006 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2007 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2008 mask_k |= SSL_kGOST;
2009 mask_a |= SSL_aGOST01;
2011 cpk = &(c->pkeys[SSL_PKEY_GOST94]);
2012 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2013 mask_k |= SSL_kGOST;
2014 mask_a |= SSL_aGOST94;
2017 if (rsa_enc || (rsa_tmp && rsa_sign))
2019 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
2020 emask_k |= SSL_kRSA;
2023 emask_k |= SSL_kDHE;
2031 emask_k |= SSL_kDHr;
2036 emask_k |= SSL_kDHd;
2038 if (mask_k & (SSL_kDHr | SSL_kDHd))
2041 if (rsa_enc || rsa_sign) {
2043 emask_a |= SSL_aRSA;
2048 emask_a |= SSL_aDSS;
2051 mask_a |= SSL_aNULL;
2052 emask_a |= SSL_aNULL;
2055 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
2056 * depending on the key usage extension.
2058 #ifndef OPENSSL_NO_EC
2059 if (have_ecc_cert) {
2060 cpk = &c->pkeys[SSL_PKEY_ECC];
2062 /* This call populates extension flags (ex_flags) */
2063 X509_check_purpose(x, -1, 0);
2064 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2065 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
2066 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2067 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
2068 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
2070 ecc_pkey = X509_get_pubkey(x);
2071 ecc_pkey_size = (ecc_pkey != NULL) ? EVP_PKEY_bits(ecc_pkey) : 0;
2072 EVP_PKEY_free(ecc_pkey);
2073 if ((x->sig_alg) && (x->sig_alg->algorithm)) {
2074 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2075 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2079 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa) {
2080 mask_k |= SSL_kECDHr;
2081 mask_a |= SSL_aECDH;
2082 if (ecc_pkey_size <= 163) {
2083 emask_k |= SSL_kECDHr;
2084 emask_a |= SSL_aECDH;
2088 if (pk_nid == NID_X9_62_id_ecPublicKey) {
2089 mask_k |= SSL_kECDHe;
2090 mask_a |= SSL_aECDH;
2091 if (ecc_pkey_size <= 163) {
2092 emask_k |= SSL_kECDHe;
2093 emask_a |= SSL_aECDH;
2098 mask_a |= SSL_aECDSA;
2099 emask_a |= SSL_aECDSA;
2104 #ifndef OPENSSL_NO_EC
2105 if (have_ecdh_tmp) {
2106 mask_k |= SSL_kECDHE;
2107 emask_k |= SSL_kECDHE;
2111 #ifndef OPENSSL_NO_PSK
2114 emask_k |= SSL_kPSK;
2115 emask_a |= SSL_aPSK;
2118 s->s3->tmp.mask_k = mask_k;
2119 s->s3->tmp.mask_a = mask_a;
2120 s->s3->tmp.export_mask_k = emask_k;
2121 s->s3->tmp.export_mask_a = emask_a;
2124 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2125 #define ku_reject(x, usage) \
2126 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2128 #ifndef OPENSSL_NO_EC
2130 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2132 unsigned long alg_k, alg_a;
2133 EVP_PKEY *pkey = NULL;
2135 int signature_nid = 0, md_nid = 0, pk_nid = 0;
2136 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2138 alg_k = cs->algorithm_mkey;
2139 alg_a = cs->algorithm_auth;
2141 if (SSL_C_IS_EXPORT(cs)) {
2142 /* ECDH key length in export ciphers must be <= 163 bits */
2143 pkey = X509_get_pubkey(x);
2146 keysize = EVP_PKEY_bits(pkey);
2147 EVP_PKEY_free(pkey);
2152 /* This call populates the ex_flags field correctly */
2153 X509_check_purpose(x, -1, 0);
2154 if ((x->sig_alg) && (x->sig_alg->algorithm)) {
2155 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2156 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2158 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr) {
2159 /* key usage, if present, must allow key agreement */
2160 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT)) {
2161 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2162 SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2165 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION) {
2166 /* signature alg must be ECDSA */
2167 if (pk_nid != NID_X9_62_id_ecPublicKey) {
2168 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2169 SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2173 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION) {
2174 /* signature alg must be RSA */
2176 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa) {
2177 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2178 SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2183 if (alg_a & SSL_aECDSA) {
2184 /* key usage, if present, must allow signing */
2185 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE)) {
2186 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2187 SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2192 return 1; /* all checks are ok */
2197 static int ssl_get_server_cert_index(const SSL *s)
2200 idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2201 if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2202 idx = SSL_PKEY_RSA_SIGN;
2204 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX, ERR_R_INTERNAL_ERROR);
2208 CERT_PKEY *ssl_get_server_send_pkey(SSL *s)
2214 if (!s->s3 || !s->s3->tmp.new_cipher)
2216 ssl_set_masks(s, s->s3->tmp.new_cipher);
2218 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2220 * Broken protocol test: return last used certificate: which may mismatch
2223 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2227 i = ssl_get_server_cert_index(s);
2229 /* This may or may not be an error. */
2234 return &c->pkeys[i];
2237 EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher,
2240 unsigned long alg_a;
2244 alg_a = cipher->algorithm_auth;
2247 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2249 * Broken protocol test: use last key: which may mismatch the one
2252 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2253 idx = c->key - c->pkeys;
2257 if ((alg_a & SSL_aDSS) &&
2258 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2259 idx = SSL_PKEY_DSA_SIGN;
2260 else if (alg_a & SSL_aRSA) {
2261 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2262 idx = SSL_PKEY_RSA_SIGN;
2263 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2264 idx = SSL_PKEY_RSA_ENC;
2265 } else if ((alg_a & SSL_aECDSA) &&
2266 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2269 SSLerr(SSL_F_SSL_GET_SIGN_PKEY, ERR_R_INTERNAL_ERROR);
2273 *pmd = s->s3->tmp.md[idx];
2274 return c->pkeys[idx].privatekey;
2277 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
2278 size_t *serverinfo_length)
2282 *serverinfo_length = 0;
2285 i = ssl_get_server_cert_index(s);
2289 if (c->pkeys[i].serverinfo == NULL)
2292 *serverinfo = c->pkeys[i].serverinfo;
2293 *serverinfo_length = c->pkeys[i].serverinfo_length;
2297 void ssl_update_cache(SSL *s, int mode)
2302 * If the session_id_length is 0, we are not supposed to cache it, and it
2303 * would be rather hard to do anyway :-)
2305 if (s->session->session_id_length == 0)
2308 i = s->session_ctx->session_cache_mode;
2309 if ((i & mode) && (!s->hit)
2310 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2311 || SSL_CTX_add_session(s->session_ctx, s->session))
2312 && (s->session_ctx->new_session_cb != NULL)) {
2313 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION);
2314 if (!s->session_ctx->new_session_cb(s, s->session))
2315 SSL_SESSION_free(s->session);
2318 /* auto flush every 255 connections */
2319 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
2320 if ((((mode & SSL_SESS_CACHE_CLIENT)
2321 ? s->session_ctx->stats.sess_connect_good
2322 : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) {
2323 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
2328 const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx)
2333 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2338 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2343 if (s->method != meth) {
2344 if (s->handshake_func != NULL)
2345 conn = (s->handshake_func == s->method->ssl_connect);
2347 if (s->method->version == meth->version)
2350 s->method->ssl_free(s);
2352 ret = s->method->ssl_new(s);
2356 s->handshake_func = meth->ssl_connect;
2358 s->handshake_func = meth->ssl_accept;
2363 int SSL_get_error(const SSL *s, int i)
2370 return (SSL_ERROR_NONE);
2373 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
2374 * where we do encode the error
2376 if ((l = ERR_peek_error()) != 0) {
2377 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2378 return (SSL_ERROR_SYSCALL);
2380 return (SSL_ERROR_SSL);
2383 if ((i < 0) && SSL_want_read(s)) {
2384 bio = SSL_get_rbio(s);
2385 if (BIO_should_read(bio))
2386 return (SSL_ERROR_WANT_READ);
2387 else if (BIO_should_write(bio))
2389 * This one doesn't make too much sense ... We never try to write
2390 * to the rbio, and an application program where rbio and wbio
2391 * are separate couldn't even know what it should wait for.
2392 * However if we ever set s->rwstate incorrectly (so that we have
2393 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
2394 * wbio *are* the same, this test works around that bug; so it
2395 * might be safer to keep it.
2397 return (SSL_ERROR_WANT_WRITE);
2398 else if (BIO_should_io_special(bio)) {
2399 reason = BIO_get_retry_reason(bio);
2400 if (reason == BIO_RR_CONNECT)
2401 return (SSL_ERROR_WANT_CONNECT);
2402 else if (reason == BIO_RR_ACCEPT)
2403 return (SSL_ERROR_WANT_ACCEPT);
2405 return (SSL_ERROR_SYSCALL); /* unknown */
2409 if ((i < 0) && SSL_want_write(s)) {
2410 bio = SSL_get_wbio(s);
2411 if (BIO_should_write(bio))
2412 return (SSL_ERROR_WANT_WRITE);
2413 else if (BIO_should_read(bio))
2415 * See above (SSL_want_read(s) with BIO_should_write(bio))
2417 return (SSL_ERROR_WANT_READ);
2418 else if (BIO_should_io_special(bio)) {
2419 reason = BIO_get_retry_reason(bio);
2420 if (reason == BIO_RR_CONNECT)
2421 return (SSL_ERROR_WANT_CONNECT);
2422 else if (reason == BIO_RR_ACCEPT)
2423 return (SSL_ERROR_WANT_ACCEPT);
2425 return (SSL_ERROR_SYSCALL);
2428 if ((i < 0) && SSL_want_x509_lookup(s)) {
2429 return (SSL_ERROR_WANT_X509_LOOKUP);
2433 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2434 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2435 return (SSL_ERROR_ZERO_RETURN);
2437 return (SSL_ERROR_SYSCALL);
2440 int SSL_do_handshake(SSL *s)
2444 if (s->handshake_func == NULL) {
2445 SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET);
2449 s->method->ssl_renegotiate_check(s);
2451 if (SSL_in_init(s) || SSL_in_before(s)) {
2452 ret = s->handshake_func(s);
2457 void SSL_set_accept_state(SSL *s)
2461 s->state = SSL_ST_ACCEPT | SSL_ST_BEFORE;
2462 s->handshake_func = s->method->ssl_accept;
2466 void SSL_set_connect_state(SSL *s)
2470 s->state = SSL_ST_CONNECT | SSL_ST_BEFORE;
2471 s->handshake_func = s->method->ssl_connect;
2475 int ssl_undefined_function(SSL *s)
2477 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2481 int ssl_undefined_void_function(void)
2483 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,
2484 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2488 int ssl_undefined_const_function(const SSL *s)
2490 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,
2491 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2495 SSL_METHOD *ssl_bad_method(int ver)
2497 SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2501 const char *SSL_get_version(const SSL *s)
2503 if (s->version == TLS1_2_VERSION)
2505 else if (s->version == TLS1_1_VERSION)
2507 else if (s->version == TLS1_VERSION)
2509 else if (s->version == SSL3_VERSION)
2511 else if (s->version == DTLS1_BAD_VER)
2512 return ("DTLSv0.9");
2513 else if (s->version == DTLS1_VERSION)
2515 else if (s->version == DTLS1_2_VERSION)
2516 return ("DTLSv1.2");
2521 SSL *SSL_dup(SSL *s)
2523 STACK_OF(X509_NAME) *sk;
2528 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2531 ret->version = s->version;
2532 ret->type = s->type;
2533 ret->method = s->method;
2535 if (s->session != NULL) {
2536 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2537 if (!SSL_copy_session_id(ret, s))
2541 * No session has been established yet, so we have to expect that
2542 * s->cert or ret->cert will be changed later -- they should not both
2543 * point to the same object, and thus we can't use
2544 * SSL_copy_session_id.
2547 ret->method->ssl_free(ret);
2548 ret->method = s->method;
2549 ret->method->ssl_new(ret);
2551 if (s->cert != NULL) {
2552 ssl_cert_free(ret->cert);
2553 ret->cert = ssl_cert_dup(s->cert);
2554 if (ret->cert == NULL)
2558 if (!SSL_set_session_id_context(ret, s->sid_ctx, s->sid_ctx_length))
2562 ret->options = s->options;
2563 ret->mode = s->mode;
2564 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
2565 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
2566 ret->msg_callback = s->msg_callback;
2567 ret->msg_callback_arg = s->msg_callback_arg;
2568 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
2569 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
2570 ret->generate_session_id = s->generate_session_id;
2572 SSL_set_info_callback(ret, SSL_get_info_callback(s));
2574 ret->debug = s->debug;
2576 /* copy app data, a little dangerous perhaps */
2577 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2580 /* setup rbio, and wbio */
2581 if (s->rbio != NULL) {
2582 if (!BIO_dup_state(s->rbio, (char *)&ret->rbio))
2585 if (s->wbio != NULL) {
2586 if (s->wbio != s->rbio) {
2587 if (!BIO_dup_state(s->wbio, (char *)&ret->wbio))
2590 ret->wbio = ret->rbio;
2592 ret->rwstate = s->rwstate;
2593 ret->in_handshake = s->in_handshake;
2594 ret->handshake_func = s->handshake_func;
2595 ret->server = s->server;
2596 ret->renegotiate = s->renegotiate;
2597 ret->new_session = s->new_session;
2598 ret->quiet_shutdown = s->quiet_shutdown;
2599 ret->shutdown = s->shutdown;
2600 ret->state = s->state; /* SSL_dup does not really work at any state,
2602 RECORD_LAYER_dup(&ret->rlayer, &s->rlayer);
2603 ret->init_num = 0; /* would have to copy ret->init_buf,
2604 * ret->init_msg, ret->init_num,
2608 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2610 /* dup the cipher_list and cipher_list_by_id stacks */
2611 if (s->cipher_list != NULL) {
2612 if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2615 if (s->cipher_list_by_id != NULL)
2616 if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2620 /* Dup the client_CA list */
2621 if (s->client_CA != NULL) {
2622 if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL)
2624 ret->client_CA = sk;
2625 for (i = 0; i < sk_X509_NAME_num(sk); i++) {
2626 xn = sk_X509_NAME_value(sk, i);
2627 if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) {
2640 void ssl_clear_cipher_ctx(SSL *s)
2642 if (s->enc_read_ctx != NULL) {
2643 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2644 OPENSSL_free(s->enc_read_ctx);
2645 s->enc_read_ctx = NULL;
2647 if (s->enc_write_ctx != NULL) {
2648 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2649 OPENSSL_free(s->enc_write_ctx);
2650 s->enc_write_ctx = NULL;
2652 #ifndef OPENSSL_NO_COMP
2653 COMP_CTX_free(s->expand);
2655 COMP_CTX_free(s->compress);
2660 X509 *SSL_get_certificate(const SSL *s)
2662 if (s->cert != NULL)
2663 return (s->cert->key->x509);
2668 EVP_PKEY *SSL_get_privatekey(const SSL *s)
2670 if (s->cert != NULL)
2671 return (s->cert->key->privatekey);
2676 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
2678 if (ctx->cert != NULL)
2679 return ctx->cert->key->x509;
2684 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
2686 if (ctx->cert != NULL)
2687 return ctx->cert->key->privatekey;
2692 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2694 if ((s->session != NULL) && (s->session->cipher != NULL))
2695 return (s->session->cipher);
2699 const COMP_METHOD *SSL_get_current_compression(SSL *s)
2701 #ifndef OPENSSL_NO_COMP
2702 return s->compress ? COMP_CTX_get_method(s->compress) : NULL;
2708 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2710 #ifndef OPENSSL_NO_COMP
2711 return s->expand ? COMP_CTX_get_method(s->expand) : NULL;
2717 int ssl_init_wbio_buffer(SSL *s, int push)
2721 if (s->bbio == NULL) {
2722 bbio = BIO_new(BIO_f_buffer());
2728 if (s->bbio == s->wbio)
2729 s->wbio = BIO_pop(s->wbio);
2731 (void)BIO_reset(bbio);
2732 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2733 if (!BIO_set_read_buffer_size(bbio, 1)) {
2734 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB);
2738 if (s->wbio != bbio)
2739 s->wbio = BIO_push(bbio, s->wbio);
2741 if (s->wbio == bbio)
2742 s->wbio = BIO_pop(bbio);
2747 void ssl_free_wbio_buffer(SSL *s)
2749 /* callers ensure s is never null */
2750 if (s->bbio == NULL)
2753 if (s->bbio == s->wbio) {
2754 /* remove buffering */
2755 s->wbio = BIO_pop(s->wbio);
2756 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids
2757 * adding one more preprocessor symbol */
2758 assert(s->wbio != NULL);
2765 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
2767 ctx->quiet_shutdown = mode;
2770 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2772 return (ctx->quiet_shutdown);
2775 void SSL_set_quiet_shutdown(SSL *s, int mode)
2777 s->quiet_shutdown = mode;
2780 int SSL_get_quiet_shutdown(const SSL *s)
2782 return (s->quiet_shutdown);
2785 void SSL_set_shutdown(SSL *s, int mode)
2790 int SSL_get_shutdown(const SSL *s)
2792 return (s->shutdown);
2795 int SSL_version(const SSL *s)
2797 return (s->version);
2800 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2805 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
2808 if (ssl->ctx == ctx)
2811 ctx = ssl->initial_ctx;
2812 new_cert = ssl_cert_dup(ctx->cert);
2813 if (new_cert == NULL) {
2816 ssl_cert_free(ssl->cert);
2817 ssl->cert = new_cert;
2820 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
2821 * so setter APIs must prevent invalid lengths from entering the system.
2823 OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx));
2826 * If the session ID context matches that of the parent SSL_CTX,
2827 * inherit it from the new SSL_CTX as well. If however the context does
2828 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
2829 * leave it unchanged.
2831 if ((ssl->ctx != NULL) &&
2832 (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
2833 (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) {
2834 ssl->sid_ctx_length = ctx->sid_ctx_length;
2835 memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx));
2838 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
2839 SSL_CTX_free(ssl->ctx); /* decrement reference count */
2845 #ifndef OPENSSL_NO_STDIO
2846 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2848 return (X509_STORE_set_default_paths(ctx->cert_store));
2851 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2854 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath));
2858 void SSL_set_info_callback(SSL *ssl,
2859 void (*cb) (const SSL *ssl, int type, int val))
2861 ssl->info_callback = cb;
2865 * One compiler (Diab DCC) doesn't like argument names in returned function
2868 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
2871 return ssl->info_callback;
2874 int SSL_state(const SSL *ssl)
2876 return (ssl->state);
2879 void SSL_set_state(SSL *ssl, int state)
2884 void SSL_set_verify_result(SSL *ssl, long arg)
2886 ssl->verify_result = arg;
2889 long SSL_get_verify_result(const SSL *ssl)
2891 return (ssl->verify_result);
2894 size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
2897 return sizeof(ssl->s3->client_random);
2898 if (outlen > sizeof(ssl->s3->client_random))
2899 outlen = sizeof(ssl->s3->client_random);
2900 memcpy(out, ssl->s3->client_random, outlen);
2904 size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
2907 return sizeof(ssl->s3->server_random);
2908 if (outlen > sizeof(ssl->s3->server_random))
2909 outlen = sizeof(ssl->s3->server_random);
2910 memcpy(out, ssl->s3->server_random, outlen);
2914 size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
2915 unsigned char *out, size_t outlen)
2917 if (session->master_key_length < 0) {
2918 /* Should never happen */
2922 return session->master_key_length;
2923 if (outlen > (size_t)session->master_key_length)
2924 outlen = session->master_key_length;
2925 memcpy(out, session->master_key, outlen);
2929 int SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
2930 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
2932 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2933 new_func, dup_func, free_func);
2936 int SSL_set_ex_data(SSL *s, int idx, void *arg)
2938 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
2941 void *SSL_get_ex_data(const SSL *s, int idx)
2943 return (CRYPTO_get_ex_data(&s->ex_data, idx));
2946 int SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
2947 CRYPTO_EX_dup *dup_func,
2948 CRYPTO_EX_free *free_func)
2950 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2951 new_func, dup_func, free_func);
2954 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
2956 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
2959 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
2961 return (CRYPTO_get_ex_data(&s->ex_data, idx));
2969 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
2971 return (ctx->cert_store);
2974 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
2976 X509_STORE_free(ctx->cert_store);
2977 ctx->cert_store = store;
2980 int SSL_want(const SSL *s)
2982 return (s->rwstate);
2986 * \brief Set the callback for generating temporary RSA keys.
2987 * \param ctx the SSL context.
2988 * \param cb the callback
2991 #ifndef OPENSSL_NO_RSA
2992 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb) (SSL *ssl,
2996 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb);
2999 void SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb) (SSL *ssl,
3003 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb);
3009 * \brief The RSA temporary key callback function.
3010 * \param ssl the SSL session.
3011 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3012 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3013 * of the required key in bits.
3014 * \return the temporary RSA key.
3015 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3018 RSA *cb(SSL *ssl, int is_export, int keylength)
3024 * \brief Set the callback for generating temporary DH keys.
3025 * \param ctx the SSL context.
3026 * \param dh the callback
3029 #ifndef OPENSSL_NO_DH
3030 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
3031 DH *(*dh) (SSL *ssl, int is_export,
3034 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3037 void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export,
3040 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3044 #ifndef OPENSSL_NO_EC
3045 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,
3046 EC_KEY *(*ecdh) (SSL *ssl, int is_export,
3049 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB,
3050 (void (*)(void))ecdh);
3053 void SSL_set_tmp_ecdh_callback(SSL *ssl,
3054 EC_KEY *(*ecdh) (SSL *ssl, int is_export,
3057 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB, (void (*)(void))ecdh);
3061 #ifndef OPENSSL_NO_PSK
3062 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3064 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3065 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT,
3066 SSL_R_DATA_LENGTH_TOO_LONG);
3069 OPENSSL_free(ctx->psk_identity_hint);
3070 if (identity_hint != NULL) {
3071 ctx->psk_identity_hint = BUF_strdup(identity_hint);
3072 if (ctx->psk_identity_hint == NULL)
3075 ctx->psk_identity_hint = NULL;
3079 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3084 if (s->session == NULL)
3085 return 1; /* session not created yet, ignored */
3087 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3088 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3091 OPENSSL_free(s->session->psk_identity_hint);
3092 if (identity_hint != NULL) {
3093 s->session->psk_identity_hint = BUF_strdup(identity_hint);
3094 if (s->session->psk_identity_hint == NULL)
3097 s->session->psk_identity_hint = NULL;
3101 const char *SSL_get_psk_identity_hint(const SSL *s)
3103 if (s == NULL || s->session == NULL)
3105 return (s->session->psk_identity_hint);
3108 const char *SSL_get_psk_identity(const SSL *s)
3110 if (s == NULL || s->session == NULL)
3112 return (s->session->psk_identity);
3115 void SSL_set_psk_client_callback(SSL *s,
3116 unsigned int (*cb) (SSL *ssl,
3125 s->psk_client_callback = cb;
3128 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3129 unsigned int (*cb) (SSL *ssl,
3138 ctx->psk_client_callback = cb;
3141 void SSL_set_psk_server_callback(SSL *s,
3142 unsigned int (*cb) (SSL *ssl,
3143 const char *identity,
3148 s->psk_server_callback = cb;
3151 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3152 unsigned int (*cb) (SSL *ssl,
3153 const char *identity,
3158 ctx->psk_server_callback = cb;
3162 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
3163 void (*cb) (int write_p, int version,
3164 int content_type, const void *buf,
3165 size_t len, SSL *ssl, void *arg))
3167 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3170 void SSL_set_msg_callback(SSL *ssl,
3171 void (*cb) (int write_p, int version,
3172 int content_type, const void *buf,
3173 size_t len, SSL *ssl, void *arg))
3175 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3178 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
3179 int (*cb) (SSL *ssl,
3183 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3184 (void (*)(void))cb);
3187 void SSL_set_not_resumable_session_callback(SSL *ssl,
3188 int (*cb) (SSL *ssl,
3189 int is_forward_secure))
3191 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3192 (void (*)(void))cb);
3196 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3197 * vairable, freeing EVP_MD_CTX previously stored in that variable, if any.
3198 * If EVP_MD pointer is passed, initializes ctx with this md Returns newly
3202 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
3204 ssl_clear_hash_ctx(hash);
3205 *hash = EVP_MD_CTX_create();
3207 EVP_DigestInit_ex(*hash, md, NULL);
3211 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3215 EVP_MD_CTX_destroy(*hash);
3219 /* Retrieve handshake hashes */
3220 int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen)
3222 unsigned char *p = out;
3227 EVP_MD_CTX_init(&ctx);
3228 for (idx = 0; ssl_get_handshake_digest(idx, &mask, &md); idx++) {
3229 if (mask & ssl_get_algorithm2(s)) {
3230 int hashsize = EVP_MD_size(md);
3231 EVP_MD_CTX *hdgst = s->s3->handshake_dgst[idx];
3232 if (!hdgst || hashsize < 0 || hashsize > outlen)
3234 if (!EVP_MD_CTX_copy_ex(&ctx, hdgst))
3236 if (!EVP_DigestFinal_ex(&ctx, p, NULL))
3244 EVP_MD_CTX_cleanup(&ctx);
3248 void SSL_set_debug(SSL *s, int debug)
3253 int SSL_cache_hit(SSL *s)
3258 int SSL_is_server(SSL *s)
3263 void SSL_set_security_level(SSL *s, int level)
3265 s->cert->sec_level = level;
3268 int SSL_get_security_level(const SSL *s)
3270 return s->cert->sec_level;
3273 void SSL_set_security_callback(SSL *s,
3274 int (*cb) (SSL *s, SSL_CTX *ctx, int op,
3275 int bits, int nid, void *other,
3278 s->cert->sec_cb = cb;
3281 int (*SSL_get_security_callback(const SSL *s)) (SSL *s, SSL_CTX *ctx, int op,
3283 void *other, void *ex) {
3284 return s->cert->sec_cb;
3287 void SSL_set0_security_ex_data(SSL *s, void *ex)
3289 s->cert->sec_ex = ex;
3292 void *SSL_get0_security_ex_data(const SSL *s)
3294 return s->cert->sec_ex;
3297 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
3299 ctx->cert->sec_level = level;
3302 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
3304 return ctx->cert->sec_level;
3307 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
3308 int (*cb) (SSL *s, SSL_CTX *ctx, int op,
3309 int bits, int nid, void *other,
3312 ctx->cert->sec_cb = cb;
3315 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (SSL *s,
3321 return ctx->cert->sec_cb;
3324 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
3326 ctx->cert->sec_ex = ex;
3329 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
3331 return ctx->cert->sec_ex;
3334 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);