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 int SSL_clear(SSL *s)
191 if (s->method == NULL) {
192 SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED);
196 if (ssl_clear_bad_session(s)) {
197 SSL_SESSION_free(s->session);
205 if (s->renegotiate) {
206 SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR);
212 s->state = SSL_ST_BEFORE | ((s->server) ? SSL_ST_ACCEPT : SSL_ST_CONNECT);
214 s->version = s->method->version;
215 s->client_version = s->version;
216 s->rwstate = SSL_NOTHING;
218 BUF_MEM_free(s->init_buf);
220 ssl_clear_cipher_ctx(s);
221 ssl_clear_hash_ctx(&s->read_hash);
222 ssl_clear_hash_ctx(&s->write_hash);
226 * Check to see if we were changed into a different method, if so, revert
227 * back if we are not doing session-id reuse.
229 if (!s->in_handshake && (s->session == NULL)
230 && (s->method != s->ctx->method)) {
231 s->method->ssl_free(s);
232 s->method = s->ctx->method;
233 if (!s->method->ssl_new(s))
236 s->method->ssl_clear(s);
238 RECORD_LAYER_clear(&s->rlayer);
243 /** Used to change an SSL_CTXs default SSL method type */
244 int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
246 STACK_OF(SSL_CIPHER) *sk;
250 sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list),
251 &(ctx->cipher_list_by_id),
252 SSL_DEFAULT_CIPHER_LIST, ctx->cert);
253 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
254 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,
255 SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
261 SSL *SSL_new(SSL_CTX *ctx)
266 SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);
269 if (ctx->method == NULL) {
270 SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
274 s = OPENSSL_malloc(sizeof(*s));
277 memset(s, 0, sizeof(*s));
279 RECORD_LAYER_init(&s->rlayer, s);
281 s->options = ctx->options;
283 s->max_cert_list = ctx->max_cert_list;
286 * Earlier library versions used to copy the pointer to the CERT, not
287 * its contents; only when setting new parameters for the per-SSL
288 * copy, ssl_cert_new would be called (and the direct reference to
289 * the per-SSL_CTX settings would be lost, but those still were
290 * indirectly accessed for various purposes, and for that reason they
291 * used to be known as s->ctx->default_cert). Now we don't look at the
292 * SSL_CTX's CERT after having duplicated it once.
294 s->cert = ssl_cert_dup(ctx->cert);
298 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
299 s->msg_callback = ctx->msg_callback;
300 s->msg_callback_arg = ctx->msg_callback_arg;
301 s->verify_mode = ctx->verify_mode;
302 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
303 s->sid_ctx_length = ctx->sid_ctx_length;
304 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
305 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
306 s->verify_callback = ctx->default_verify_callback;
307 s->generate_session_id = ctx->generate_session_id;
309 s->param = X509_VERIFY_PARAM_new();
312 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
313 s->quiet_shutdown = ctx->quiet_shutdown;
314 s->max_send_fragment = ctx->max_send_fragment;
316 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
318 s->tlsext_debug_cb = 0;
319 s->tlsext_debug_arg = NULL;
320 s->tlsext_ticket_expected = 0;
321 s->tlsext_status_type = -1;
322 s->tlsext_status_expected = 0;
323 s->tlsext_ocsp_ids = NULL;
324 s->tlsext_ocsp_exts = NULL;
325 s->tlsext_ocsp_resp = NULL;
326 s->tlsext_ocsp_resplen = -1;
327 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
328 s->initial_ctx = ctx;
329 # ifndef OPENSSL_NO_EC
330 if (ctx->tlsext_ecpointformatlist) {
331 s->tlsext_ecpointformatlist =
332 BUF_memdup(ctx->tlsext_ecpointformatlist,
333 ctx->tlsext_ecpointformatlist_length);
334 if (!s->tlsext_ecpointformatlist)
336 s->tlsext_ecpointformatlist_length =
337 ctx->tlsext_ecpointformatlist_length;
339 if (ctx->tlsext_ellipticcurvelist) {
340 s->tlsext_ellipticcurvelist =
341 BUF_memdup(ctx->tlsext_ellipticcurvelist,
342 ctx->tlsext_ellipticcurvelist_length);
343 if (!s->tlsext_ellipticcurvelist)
345 s->tlsext_ellipticcurvelist_length =
346 ctx->tlsext_ellipticcurvelist_length;
349 # ifndef OPENSSL_NO_NEXTPROTONEG
350 s->next_proto_negotiated = NULL;
353 if (s->ctx->alpn_client_proto_list) {
354 s->alpn_client_proto_list =
355 OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);
356 if (s->alpn_client_proto_list == NULL)
358 memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,
359 s->ctx->alpn_client_proto_list_len);
360 s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;
363 s->verify_result = X509_V_OK;
365 s->method = ctx->method;
367 if (!s->method->ssl_new(s))
371 s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;
376 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
378 #ifndef OPENSSL_NO_PSK
379 s->psk_client_callback = ctx->psk_client_callback;
380 s->psk_server_callback = ctx->psk_server_callback;
386 SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
390 int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
391 unsigned int sid_ctx_len)
393 if (sid_ctx_len > sizeof ctx->sid_ctx) {
394 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,
395 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
398 ctx->sid_ctx_length = sid_ctx_len;
399 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
404 int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
405 unsigned int sid_ctx_len)
407 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
408 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,
409 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
412 ssl->sid_ctx_length = sid_ctx_len;
413 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len);
418 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
420 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
421 ctx->generate_session_id = cb;
422 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
426 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
428 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
429 ssl->generate_session_id = cb;
430 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
434 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
438 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
439 * we can "construct" a session to give us the desired check - ie. to
440 * find if there's a session in the hash table that would conflict with
441 * any new session built out of this id/id_len and the ssl_version in use
446 if (id_len > sizeof r.session_id)
449 r.ssl_version = ssl->version;
450 r.session_id_length = id_len;
451 memcpy(r.session_id, id, id_len);
453 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
454 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
455 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
459 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
461 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
464 int SSL_set_purpose(SSL *s, int purpose)
466 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
469 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
471 return X509_VERIFY_PARAM_set_trust(s->param, trust);
474 int SSL_set_trust(SSL *s, int trust)
476 return X509_VERIFY_PARAM_set_trust(s->param, trust);
479 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
481 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
484 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
486 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
489 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
494 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
499 void SSL_certs_clear(SSL *s)
501 ssl_cert_clear_certs(s->cert);
504 void SSL_free(SSL *s)
511 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL);
519 fprintf(stderr, "SSL_free, bad reference count\n");
524 X509_VERIFY_PARAM_free(s->param);
525 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
527 if (s->bbio != NULL) {
528 /* If the buffering BIO is in place, pop it off */
529 if (s->bbio == s->wbio) {
530 s->wbio = BIO_pop(s->wbio);
535 BIO_free_all(s->rbio);
536 if (s->wbio != s->rbio)
537 BIO_free_all(s->wbio);
539 BUF_MEM_free(s->init_buf);
541 /* add extra stuff */
542 sk_SSL_CIPHER_free(s->cipher_list);
543 sk_SSL_CIPHER_free(s->cipher_list_by_id);
545 /* Make the next call work :-) */
546 if (s->session != NULL) {
547 ssl_clear_bad_session(s);
548 SSL_SESSION_free(s->session);
551 ssl_clear_cipher_ctx(s);
552 ssl_clear_hash_ctx(&s->read_hash);
553 ssl_clear_hash_ctx(&s->write_hash);
555 ssl_cert_free(s->cert);
556 /* Free up if allocated */
558 OPENSSL_free(s->tlsext_hostname);
559 SSL_CTX_free(s->initial_ctx);
560 #ifndef OPENSSL_NO_EC
561 OPENSSL_free(s->tlsext_ecpointformatlist);
562 OPENSSL_free(s->tlsext_ellipticcurvelist);
563 #endif /* OPENSSL_NO_EC */
564 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free);
565 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
566 OPENSSL_free(s->tlsext_ocsp_resp);
567 OPENSSL_free(s->alpn_client_proto_list);
569 sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free);
571 if (s->method != NULL)
572 s->method->ssl_free(s);
574 RECORD_LAYER_release(&s->rlayer);
576 SSL_CTX_free(s->ctx);
578 #if !defined(OPENSSL_NO_NEXTPROTONEG)
579 OPENSSL_free(s->next_proto_negotiated);
582 #ifndef OPENSSL_NO_SRTP
583 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
589 void SSL_set_rbio(SSL *s, BIO *rbio)
592 BIO_free_all(s->rbio);
596 void SSL_set_wbio(SSL *s, BIO *wbio)
599 * If the output buffering BIO is still in place, remove it
601 if (s->bbio != NULL) {
602 if (s->wbio == s->bbio) {
603 s->wbio = s->wbio->next_bio;
604 s->bbio->next_bio = NULL;
607 if (s->wbio != wbio && s->rbio != s->wbio)
608 BIO_free_all(s->wbio);
612 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
614 SSL_set_wbio(s, wbio);
615 SSL_set_rbio(s, rbio);
618 BIO *SSL_get_rbio(const SSL *s)
623 BIO *SSL_get_wbio(const SSL *s)
628 int SSL_get_fd(const SSL *s)
630 return (SSL_get_rfd(s));
633 int SSL_get_rfd(const SSL *s)
639 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
645 int SSL_get_wfd(const SSL *s)
651 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
657 #ifndef OPENSSL_NO_SOCK
658 int SSL_set_fd(SSL *s, int fd)
663 bio = BIO_new(BIO_s_socket());
666 SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB);
669 BIO_set_fd(bio, fd, BIO_NOCLOSE);
670 SSL_set_bio(s, bio, bio);
676 int SSL_set_wfd(SSL *s, int fd)
681 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
682 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) {
683 bio = BIO_new(BIO_s_socket());
686 SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB);
689 BIO_set_fd(bio, fd, BIO_NOCLOSE);
690 SSL_set_bio(s, SSL_get_rbio(s), bio);
692 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s));
698 int SSL_set_rfd(SSL *s, int fd)
703 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
704 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) {
705 bio = BIO_new(BIO_s_socket());
708 SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB);
711 BIO_set_fd(bio, fd, BIO_NOCLOSE);
712 SSL_set_bio(s, bio, SSL_get_wbio(s));
714 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s));
721 /* return length of latest Finished message we sent, copy to 'buf' */
722 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
727 ret = s->s3->tmp.finish_md_len;
730 memcpy(buf, s->s3->tmp.finish_md, count);
735 /* return length of latest Finished message we expected, copy to 'buf' */
736 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
741 ret = s->s3->tmp.peer_finish_md_len;
744 memcpy(buf, s->s3->tmp.peer_finish_md, count);
749 int SSL_get_verify_mode(const SSL *s)
751 return (s->verify_mode);
754 int SSL_get_verify_depth(const SSL *s)
756 return X509_VERIFY_PARAM_get_depth(s->param);
759 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
760 return (s->verify_callback);
763 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
765 return (ctx->verify_mode);
768 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
770 return X509_VERIFY_PARAM_get_depth(ctx->param);
773 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
774 return (ctx->default_verify_callback);
777 void SSL_set_verify(SSL *s, int mode,
778 int (*callback) (int ok, X509_STORE_CTX *ctx))
780 s->verify_mode = mode;
781 if (callback != NULL)
782 s->verify_callback = callback;
785 void SSL_set_verify_depth(SSL *s, int depth)
787 X509_VERIFY_PARAM_set_depth(s->param, depth);
790 void SSL_set_read_ahead(SSL *s, int yes)
792 RECORD_LAYER_set_read_ahead(&s->rlayer, yes);
795 int SSL_get_read_ahead(const SSL *s)
797 return RECORD_LAYER_get_read_ahead(&s->rlayer);
800 int SSL_pending(const SSL *s)
803 * SSL_pending cannot work properly if read-ahead is enabled
804 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
805 * impossible to fix since SSL_pending cannot report errors that may be
806 * observed while scanning the new data. (Note that SSL_pending() is
807 * often used as a boolean value, so we'd better not return -1.)
809 return (s->method->ssl_pending(s));
812 X509 *SSL_get_peer_certificate(const SSL *s)
816 if ((s == NULL) || (s->session == NULL))
819 r = s->session->peer;
824 CRYPTO_add(&r->references, 1, CRYPTO_LOCK_X509);
829 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
833 if ((s == NULL) || (s->session == NULL)
834 || (s->session->sess_cert == NULL))
837 r = s->session->sess_cert->cert_chain;
840 * If we are a client, cert_chain includes the peer's own certificate; if
841 * we are a server, it does not.
848 * Now in theory, since the calling process own 't' it should be safe to
849 * modify. We need to be able to read f without being hassled
851 int SSL_copy_session_id(SSL *t, const SSL *f)
853 /* Do we need to to SSL locking? */
854 if (!SSL_set_session(t, SSL_get_session(f))) {
859 * what if we are setup as SSLv2 but want to talk SSLv3 or vice-versa
861 if (t->method != f->method) {
862 t->method->ssl_free(t); /* cleanup current */
863 t->method = f->method; /* change method */
864 t->method->ssl_new(t); /* setup new */
867 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT);
868 ssl_cert_free(t->cert);
870 if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) {
877 /* Fix this so it checks all the valid key/cert options */
878 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
881 (ctx->cert->key->x509 == NULL)) {
882 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
883 SSL_R_NO_CERTIFICATE_ASSIGNED);
886 if (ctx->cert->key->privatekey == NULL) {
887 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
888 SSL_R_NO_PRIVATE_KEY_ASSIGNED);
891 return (X509_check_private_key
892 (ctx->cert->key->x509, ctx->cert->key->privatekey));
895 /* Fix this function so that it takes an optional type parameter */
896 int SSL_check_private_key(const SSL *ssl)
899 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
902 if (ssl->cert->key->x509 == NULL) {
903 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
906 if (ssl->cert->key->privatekey == NULL) {
907 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
910 return (X509_check_private_key(ssl->cert->key->x509,
911 ssl->cert->key->privatekey));
914 int SSL_accept(SSL *s)
916 if (s->handshake_func == 0)
917 /* Not properly initialized yet */
918 SSL_set_accept_state(s);
920 return (s->method->ssl_accept(s));
923 int SSL_connect(SSL *s)
925 if (s->handshake_func == 0)
926 /* Not properly initialized yet */
927 SSL_set_connect_state(s);
929 return (s->method->ssl_connect(s));
932 long SSL_get_default_timeout(const SSL *s)
934 return (s->method->get_timeout());
937 int SSL_read(SSL *s, void *buf, int num)
939 if (s->handshake_func == 0) {
940 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
944 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
945 s->rwstate = SSL_NOTHING;
948 return (s->method->ssl_read(s, buf, num));
951 int SSL_peek(SSL *s, void *buf, int num)
953 if (s->handshake_func == 0) {
954 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
958 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
961 return (s->method->ssl_peek(s, buf, num));
964 int SSL_write(SSL *s, const void *buf, int num)
966 if (s->handshake_func == 0) {
967 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
971 if (s->shutdown & SSL_SENT_SHUTDOWN) {
972 s->rwstate = SSL_NOTHING;
973 SSLerr(SSL_F_SSL_WRITE, SSL_R_PROTOCOL_IS_SHUTDOWN);
976 return (s->method->ssl_write(s, buf, num));
979 int SSL_shutdown(SSL *s)
982 * Note that this function behaves differently from what one might
983 * expect. Return values are 0 for no success (yet), 1 for success; but
984 * calling it once is usually not enough, even if blocking I/O is used
985 * (see ssl3_shutdown).
988 if (s->handshake_func == 0) {
989 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
993 if ((s != NULL) && !SSL_in_init(s))
994 return (s->method->ssl_shutdown(s));
999 int SSL_renegotiate(SSL *s)
1001 if (s->renegotiate == 0)
1006 return (s->method->ssl_renegotiate(s));
1009 int SSL_renegotiate_abbreviated(SSL *s)
1011 if (s->renegotiate == 0)
1016 return (s->method->ssl_renegotiate(s));
1019 int SSL_renegotiate_pending(SSL *s)
1022 * becomes true when negotiation is requested; false again once a
1023 * handshake has finished
1025 return (s->renegotiate != 0);
1028 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
1033 case SSL_CTRL_GET_READ_AHEAD:
1034 return (RECORD_LAYER_get_read_ahead(&s->rlayer));
1035 case SSL_CTRL_SET_READ_AHEAD:
1036 l = RECORD_LAYER_get_read_ahead(&s->rlayer);
1037 RECORD_LAYER_set_read_ahead(&s->rlayer, larg);
1040 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1041 s->msg_callback_arg = parg;
1044 case SSL_CTRL_OPTIONS:
1045 return (s->options |= larg);
1046 case SSL_CTRL_CLEAR_OPTIONS:
1047 return (s->options &= ~larg);
1049 return (s->mode |= larg);
1050 case SSL_CTRL_CLEAR_MODE:
1051 return (s->mode &= ~larg);
1052 case SSL_CTRL_GET_MAX_CERT_LIST:
1053 return (s->max_cert_list);
1054 case SSL_CTRL_SET_MAX_CERT_LIST:
1055 l = s->max_cert_list;
1056 s->max_cert_list = larg;
1058 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1059 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1061 s->max_send_fragment = larg;
1063 case SSL_CTRL_GET_RI_SUPPORT:
1065 return s->s3->send_connection_binding;
1068 case SSL_CTRL_CERT_FLAGS:
1069 return (s->cert->cert_flags |= larg);
1070 case SSL_CTRL_CLEAR_CERT_FLAGS:
1071 return (s->cert->cert_flags &= ~larg);
1073 case SSL_CTRL_GET_RAW_CIPHERLIST:
1075 if (s->s3->tmp.ciphers_raw == NULL)
1077 *(unsigned char **)parg = s->s3->tmp.ciphers_raw;
1078 return (int)s->s3->tmp.ciphers_rawlen;
1080 return ssl_put_cipher_by_char(s, NULL, NULL);
1081 case SSL_CTRL_GET_EXTMS_SUPPORT:
1082 if (!s->session || SSL_in_init(s) || s->in_handshake)
1084 if (s->session->flags & SSL_SESS_FLAG_EXTMS)
1089 return (s->method->ssl_ctrl(s, cmd, larg, parg));
1093 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
1096 case SSL_CTRL_SET_MSG_CALLBACK:
1097 s->msg_callback = (void (*)
1098 (int write_p, int version, int content_type,
1099 const void *buf, size_t len, SSL *ssl,
1104 return (s->method->ssl_callback_ctrl(s, cmd, fp));
1108 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1110 return ctx->sessions;
1113 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
1116 /* For some cases with ctx == NULL perform syntax checks */
1119 #ifndef OPENSSL_NO_EC
1120 case SSL_CTRL_SET_CURVES_LIST:
1121 return tls1_set_curves_list(NULL, NULL, parg);
1123 case SSL_CTRL_SET_SIGALGS_LIST:
1124 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
1125 return tls1_set_sigalgs_list(NULL, parg, 0);
1132 case SSL_CTRL_GET_READ_AHEAD:
1133 return (ctx->read_ahead);
1134 case SSL_CTRL_SET_READ_AHEAD:
1135 l = ctx->read_ahead;
1136 ctx->read_ahead = larg;
1139 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1140 ctx->msg_callback_arg = parg;
1143 case SSL_CTRL_GET_MAX_CERT_LIST:
1144 return (ctx->max_cert_list);
1145 case SSL_CTRL_SET_MAX_CERT_LIST:
1146 l = ctx->max_cert_list;
1147 ctx->max_cert_list = larg;
1150 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1151 l = ctx->session_cache_size;
1152 ctx->session_cache_size = larg;
1154 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1155 return (ctx->session_cache_size);
1156 case SSL_CTRL_SET_SESS_CACHE_MODE:
1157 l = ctx->session_cache_mode;
1158 ctx->session_cache_mode = larg;
1160 case SSL_CTRL_GET_SESS_CACHE_MODE:
1161 return (ctx->session_cache_mode);
1163 case SSL_CTRL_SESS_NUMBER:
1164 return (lh_SSL_SESSION_num_items(ctx->sessions));
1165 case SSL_CTRL_SESS_CONNECT:
1166 return (ctx->stats.sess_connect);
1167 case SSL_CTRL_SESS_CONNECT_GOOD:
1168 return (ctx->stats.sess_connect_good);
1169 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1170 return (ctx->stats.sess_connect_renegotiate);
1171 case SSL_CTRL_SESS_ACCEPT:
1172 return (ctx->stats.sess_accept);
1173 case SSL_CTRL_SESS_ACCEPT_GOOD:
1174 return (ctx->stats.sess_accept_good);
1175 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1176 return (ctx->stats.sess_accept_renegotiate);
1177 case SSL_CTRL_SESS_HIT:
1178 return (ctx->stats.sess_hit);
1179 case SSL_CTRL_SESS_CB_HIT:
1180 return (ctx->stats.sess_cb_hit);
1181 case SSL_CTRL_SESS_MISSES:
1182 return (ctx->stats.sess_miss);
1183 case SSL_CTRL_SESS_TIMEOUTS:
1184 return (ctx->stats.sess_timeout);
1185 case SSL_CTRL_SESS_CACHE_FULL:
1186 return (ctx->stats.sess_cache_full);
1187 case SSL_CTRL_OPTIONS:
1188 return (ctx->options |= larg);
1189 case SSL_CTRL_CLEAR_OPTIONS:
1190 return (ctx->options &= ~larg);
1192 return (ctx->mode |= larg);
1193 case SSL_CTRL_CLEAR_MODE:
1194 return (ctx->mode &= ~larg);
1195 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1196 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1198 ctx->max_send_fragment = larg;
1200 case SSL_CTRL_CERT_FLAGS:
1201 return (ctx->cert->cert_flags |= larg);
1202 case SSL_CTRL_CLEAR_CERT_FLAGS:
1203 return (ctx->cert->cert_flags &= ~larg);
1205 return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg));
1209 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
1212 case SSL_CTRL_SET_MSG_CALLBACK:
1213 ctx->msg_callback = (void (*)
1214 (int write_p, int version, int content_type,
1215 const void *buf, size_t len, SSL *ssl,
1220 return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp));
1224 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1232 return ((l > 0) ? 1 : -1);
1235 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
1236 const SSL_CIPHER *const *bp)
1240 l = (*ap)->id - (*bp)->id;
1244 return ((l > 0) ? 1 : -1);
1247 /** return a STACK of the ciphers available for the SSL and in order of
1249 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1252 if (s->cipher_list != NULL) {
1253 return (s->cipher_list);
1254 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
1255 return (s->ctx->cipher_list);
1261 STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
1263 if ((s == NULL) || (s->session == NULL) || !s->server)
1265 return s->session->ciphers;
1268 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
1270 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
1272 ciphers = SSL_get_ciphers(s);
1275 ssl_set_client_disabled(s);
1276 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
1277 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
1278 if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED)) {
1280 sk = sk_SSL_CIPHER_new_null();
1283 if (!sk_SSL_CIPHER_push(sk, c)) {
1284 sk_SSL_CIPHER_free(sk);
1292 /** return a STACK of the ciphers available for the SSL and in order of
1294 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1297 if (s->cipher_list_by_id != NULL) {
1298 return (s->cipher_list_by_id);
1299 } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) {
1300 return (s->ctx->cipher_list_by_id);
1306 /** The old interface to get the same thing as SSL_get_ciphers() */
1307 const char *SSL_get_cipher_list(const SSL *s, int n)
1310 STACK_OF(SSL_CIPHER) *sk;
1314 sk = SSL_get_ciphers(s);
1315 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1317 c = sk_SSL_CIPHER_value(sk, n);
1323 /** specify the ciphers to be used by default by the SSL_CTX */
1324 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1326 STACK_OF(SSL_CIPHER) *sk;
1328 sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list,
1329 &ctx->cipher_list_by_id, str, ctx->cert);
1331 * ssl_create_cipher_list may return an empty stack if it was unable to
1332 * find a cipher matching the given rule string (for example if the rule
1333 * string specifies a cipher which has been disabled). This is not an
1334 * error as far as ssl_create_cipher_list is concerned, and hence
1335 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
1339 else if (sk_SSL_CIPHER_num(sk) == 0) {
1340 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1346 /** specify the ciphers to be used by the SSL */
1347 int SSL_set_cipher_list(SSL *s, const char *str)
1349 STACK_OF(SSL_CIPHER) *sk;
1351 sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list,
1352 &s->cipher_list_by_id, str, s->cert);
1353 /* see comment in SSL_CTX_set_cipher_list */
1356 else if (sk_SSL_CIPHER_num(sk) == 0) {
1357 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1363 /* works well for SSLv2, not so good for SSLv3 */
1364 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len)
1367 STACK_OF(SSL_CIPHER) *sk;
1371 if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2))
1375 sk = s->session->ciphers;
1377 if (sk_SSL_CIPHER_num(sk) == 0)
1380 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
1383 c = sk_SSL_CIPHER_value(sk, i);
1384 n = strlen(c->name);
1400 /** return a servername extension value if provided in Client Hello, or NULL.
1401 * So far, only host_name types are defined (RFC 3546).
1404 const char *SSL_get_servername(const SSL *s, const int type)
1406 if (type != TLSEXT_NAMETYPE_host_name)
1409 return s->session && !s->tlsext_hostname ?
1410 s->session->tlsext_hostname : s->tlsext_hostname;
1413 int SSL_get_servername_type(const SSL *s)
1416 && (!s->tlsext_hostname ? s->session->
1417 tlsext_hostname : s->tlsext_hostname))
1418 return TLSEXT_NAMETYPE_host_name;
1423 * SSL_select_next_proto implements the standard protocol selection. It is
1424 * expected that this function is called from the callback set by
1425 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
1426 * vector of 8-bit, length prefixed byte strings. The length byte itself is
1427 * not included in the length. A byte string of length 0 is invalid. No byte
1428 * string may be truncated. The current, but experimental algorithm for
1429 * selecting the protocol is: 1) If the server doesn't support NPN then this
1430 * is indicated to the callback. In this case, the client application has to
1431 * abort the connection or have a default application level protocol. 2) If
1432 * the server supports NPN, but advertises an empty list then the client
1433 * selects the first protcol in its list, but indicates via the API that this
1434 * fallback case was enacted. 3) Otherwise, the client finds the first
1435 * protocol in the server's list that it supports and selects this protocol.
1436 * This is because it's assumed that the server has better information about
1437 * which protocol a client should use. 4) If the client doesn't support any
1438 * of the server's advertised protocols, then this is treated the same as
1439 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
1440 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1442 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
1443 const unsigned char *server,
1444 unsigned int server_len,
1445 const unsigned char *client,
1446 unsigned int client_len)
1449 const unsigned char *result;
1450 int status = OPENSSL_NPN_UNSUPPORTED;
1453 * For each protocol in server preference order, see if we support it.
1455 for (i = 0; i < server_len;) {
1456 for (j = 0; j < client_len;) {
1457 if (server[i] == client[j] &&
1458 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
1459 /* We found a match */
1460 result = &server[i];
1461 status = OPENSSL_NPN_NEGOTIATED;
1471 /* There's no overlap between our protocols and the server's list. */
1473 status = OPENSSL_NPN_NO_OVERLAP;
1476 *out = (unsigned char *)result + 1;
1477 *outlen = result[0];
1481 #ifndef OPENSSL_NO_NEXTPROTONEG
1483 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
1484 * client's requested protocol for this connection and returns 0. If the
1485 * client didn't request any protocol, then *data is set to NULL. Note that
1486 * the client can request any protocol it chooses. The value returned from
1487 * this function need not be a member of the list of supported protocols
1488 * provided by the callback.
1490 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
1493 *data = s->next_proto_negotiated;
1497 *len = s->next_proto_negotiated_len;
1502 * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when
1503 * a TLS server needs a list of supported protocols for Next Protocol
1504 * Negotiation. The returned list must be in wire format. The list is
1505 * returned by setting |out| to point to it and |outlen| to its length. This
1506 * memory will not be modified, but one should assume that the SSL* keeps a
1507 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
1508 * wishes to advertise. Otherwise, no such extension will be included in the
1511 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx,
1512 int (*cb) (SSL *ssl,
1515 unsigned int *outlen,
1516 void *arg), void *arg)
1518 ctx->next_protos_advertised_cb = cb;
1519 ctx->next_protos_advertised_cb_arg = arg;
1523 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1524 * client needs to select a protocol from the server's provided list. |out|
1525 * must be set to point to the selected protocol (which may be within |in|).
1526 * The length of the protocol name must be written into |outlen|. The
1527 * server's advertised protocols are provided in |in| and |inlen|. The
1528 * callback can assume that |in| is syntactically valid. The client must
1529 * select a protocol. It is fatal to the connection if this callback returns
1530 * a value other than SSL_TLSEXT_ERR_OK.
1532 void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx,
1533 int (*cb) (SSL *s, unsigned char **out,
1534 unsigned char *outlen,
1535 const unsigned char *in,
1537 void *arg), void *arg)
1539 ctx->next_proto_select_cb = cb;
1540 ctx->next_proto_select_cb_arg = arg;
1545 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
1546 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1547 * length-prefixed strings). Returns 0 on success.
1549 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
1550 unsigned protos_len)
1552 OPENSSL_free(ctx->alpn_client_proto_list);
1553 ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1554 if (!ctx->alpn_client_proto_list)
1556 memcpy(ctx->alpn_client_proto_list, protos, protos_len);
1557 ctx->alpn_client_proto_list_len = protos_len;
1563 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
1564 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1565 * length-prefixed strings). Returns 0 on success.
1567 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
1568 unsigned protos_len)
1570 OPENSSL_free(ssl->alpn_client_proto_list);
1571 ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1572 if (!ssl->alpn_client_proto_list)
1574 memcpy(ssl->alpn_client_proto_list, protos, protos_len);
1575 ssl->alpn_client_proto_list_len = protos_len;
1581 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
1582 * called during ClientHello processing in order to select an ALPN protocol
1583 * from the client's list of offered protocols.
1585 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
1586 int (*cb) (SSL *ssl,
1587 const unsigned char **out,
1588 unsigned char *outlen,
1589 const unsigned char *in,
1591 void *arg), void *arg)
1593 ctx->alpn_select_cb = cb;
1594 ctx->alpn_select_cb_arg = arg;
1598 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from
1599 * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name
1600 * (not including the leading length-prefix byte). If the server didn't
1601 * respond with a negotiated protocol then |*len| will be zero.
1603 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
1608 *data = ssl->s3->alpn_selected;
1612 *len = ssl->s3->alpn_selected_len;
1616 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1617 const char *label, size_t llen,
1618 const unsigned char *p, size_t plen,
1621 if (s->version < TLS1_VERSION)
1624 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
1629 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1634 ((unsigned int)a->session_id[0]) |
1635 ((unsigned int)a->session_id[1] << 8L) |
1636 ((unsigned long)a->session_id[2] << 16L) |
1637 ((unsigned long)a->session_id[3] << 24L);
1642 * NB: If this function (or indeed the hash function which uses a sort of
1643 * coarser function than this one) is changed, ensure
1644 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
1645 * being able to construct an SSL_SESSION that will collide with any existing
1646 * session with a matching session ID.
1648 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
1650 if (a->ssl_version != b->ssl_version)
1652 if (a->session_id_length != b->session_id_length)
1654 return (memcmp(a->session_id, b->session_id, a->session_id_length));
1658 * These wrapper functions should remain rather than redeclaring
1659 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1660 * variable. The reason is that the functions aren't static, they're exposed
1663 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1664 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1666 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1668 SSL_CTX *ret = NULL;
1671 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED);
1675 if (FIPS_mode() && (meth->version < TLS1_VERSION)) {
1676 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1680 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
1681 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1684 ret = OPENSSL_malloc(sizeof(*ret));
1688 memset(ret, 0, sizeof(*ret));
1692 ret->cert_store = NULL;
1693 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
1694 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1695 ret->session_cache_head = NULL;
1696 ret->session_cache_tail = NULL;
1698 /* We take the system default */
1699 ret->session_timeout = meth->get_timeout();
1701 ret->new_session_cb = 0;
1702 ret->remove_session_cb = 0;
1703 ret->get_session_cb = 0;
1704 ret->generate_session_id = 0;
1706 memset(&ret->stats, 0, sizeof(ret->stats));
1708 ret->references = 1;
1709 ret->quiet_shutdown = 0;
1710 ret->info_callback = NULL;
1711 ret->app_verify_callback = 0;
1712 ret->app_verify_arg = NULL;
1713 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
1714 ret->read_ahead = 0;
1715 ret->msg_callback = 0;
1716 ret->msg_callback_arg = NULL;
1717 ret->verify_mode = SSL_VERIFY_NONE;
1718 ret->sid_ctx_length = 0;
1719 ret->default_verify_callback = NULL;
1720 if ((ret->cert = ssl_cert_new()) == NULL)
1723 ret->default_passwd_callback = 0;
1724 ret->default_passwd_callback_userdata = NULL;
1725 ret->client_cert_cb = 0;
1726 ret->app_gen_cookie_cb = 0;
1727 ret->app_verify_cookie_cb = 0;
1729 ret->sessions = lh_SSL_SESSION_new();
1730 if (ret->sessions == NULL)
1732 ret->cert_store = X509_STORE_new();
1733 if (ret->cert_store == NULL)
1736 if (!ssl_create_cipher_list(ret->method,
1737 &ret->cipher_list, &ret->cipher_list_by_id,
1738 SSL_DEFAULT_CIPHER_LIST, ret->cert)
1739 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
1740 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);
1744 ret->param = X509_VERIFY_PARAM_new();
1748 if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {
1749 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1752 if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) {
1753 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1757 if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL)
1760 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1762 ret->extra_certs = NULL;
1763 /* No compression for DTLS */
1764 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
1765 ret->comp_methods = SSL_COMP_get_compression_methods();
1767 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1769 ret->tlsext_servername_callback = 0;
1770 ret->tlsext_servername_arg = NULL;
1771 /* Setup RFC4507 ticket keys */
1772 if ((RAND_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1773 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1774 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1775 ret->options |= SSL_OP_NO_TICKET;
1777 ret->tlsext_status_cb = 0;
1778 ret->tlsext_status_arg = NULL;
1780 #ifndef OPENSSL_NO_NEXTPROTONEG
1781 ret->next_protos_advertised_cb = 0;
1782 ret->next_proto_select_cb = 0;
1784 #ifndef OPENSSL_NO_PSK
1785 ret->psk_identity_hint = NULL;
1786 ret->psk_client_callback = NULL;
1787 ret->psk_server_callback = NULL;
1789 #ifndef OPENSSL_NO_SRP
1790 if (!SSL_CTX_SRP_CTX_init(ret))
1793 #ifndef OPENSSL_NO_ENGINE
1794 ret->client_cert_engine = NULL;
1795 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1796 # define eng_strx(x) #x
1797 # define eng_str(x) eng_strx(x)
1798 /* Use specific client engine automatically... ignore errors */
1801 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1804 ENGINE_load_builtin_engines();
1805 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1807 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
1813 * Default is to connect to non-RI servers. When RI is more widely
1814 * deployed might change this.
1816 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
1820 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
1826 void SSL_CTX_free(SSL_CTX *a)
1833 i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_SSL_CTX);
1835 REF_PRINT("SSL_CTX", a);
1841 fprintf(stderr, "SSL_CTX_free, bad reference count\n");
1846 X509_VERIFY_PARAM_free(a->param);
1849 * Free internal session cache. However: the remove_cb() may reference
1850 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1851 * after the sessions were flushed.
1852 * As the ex_data handling routines might also touch the session cache,
1853 * the most secure solution seems to be: empty (flush) the cache, then
1854 * free ex_data, then finally free the cache.
1855 * (See ticket [openssl.org #212].)
1857 if (a->sessions != NULL)
1858 SSL_CTX_flush_sessions(a, 0);
1860 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1861 lh_SSL_SESSION_free(a->sessions);
1862 X509_STORE_free(a->cert_store);
1863 sk_SSL_CIPHER_free(a->cipher_list);
1864 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1865 ssl_cert_free(a->cert);
1866 sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free);
1867 sk_X509_pop_free(a->extra_certs, X509_free);
1868 a->comp_methods = NULL;
1869 #ifndef OPENSSL_NO_SRTP
1870 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
1872 #ifndef OPENSSL_NO_PSK
1873 OPENSSL_free(a->psk_identity_hint);
1875 #ifndef OPENSSL_NO_SRP
1876 SSL_CTX_SRP_CTX_free(a);
1878 #ifndef OPENSSL_NO_ENGINE
1879 if (a->client_cert_engine)
1880 ENGINE_finish(a->client_cert_engine);
1883 #ifndef OPENSSL_NO_EC
1884 OPENSSL_free(a->tlsext_ecpointformatlist);
1885 OPENSSL_free(a->tlsext_ellipticcurvelist);
1887 OPENSSL_free(a->alpn_client_proto_list);
1892 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1894 ctx->default_passwd_callback = cb;
1897 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
1899 ctx->default_passwd_callback_userdata = u;
1902 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
1903 int (*cb) (X509_STORE_CTX *, void *),
1906 ctx->app_verify_callback = cb;
1907 ctx->app_verify_arg = arg;
1910 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
1911 int (*cb) (int, X509_STORE_CTX *))
1913 ctx->verify_mode = mode;
1914 ctx->default_verify_callback = cb;
1917 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
1919 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
1922 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg),
1925 ssl_cert_set_cert_cb(c->cert, cb, arg);
1928 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
1930 ssl_cert_set_cert_cb(s->cert, cb, arg);
1933 void ssl_set_masks(SSL *s, const SSL_CIPHER *cipher)
1937 int *pvalid = s->s3->tmp.valid_flags;
1938 int rsa_enc, rsa_tmp, rsa_sign, dh_tmp, dh_rsa, dh_dsa, dsa_sign;
1939 int rsa_enc_export, dh_rsa_export, dh_dsa_export;
1940 int rsa_tmp_export, dh_tmp_export, kl;
1941 unsigned long mask_k, mask_a, emask_k, emask_a;
1942 #ifndef OPENSSL_NO_EC
1943 int have_ecc_cert, ecdsa_ok, ecc_pkey_size;
1944 int have_ecdh_tmp, ecdh_ok;
1946 EVP_PKEY *ecc_pkey = NULL;
1947 int signature_nid = 0, pk_nid = 0, md_nid = 0;
1952 kl = SSL_C_EXPORT_PKEYLENGTH(cipher);
1954 #ifndef OPENSSL_NO_RSA
1955 rsa_tmp = (c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1956 rsa_tmp_export = (c->rsa_tmp_cb != NULL ||
1957 (rsa_tmp && RSA_size(c->rsa_tmp) * 8 <= kl));
1959 rsa_tmp = rsa_tmp_export = 0;
1961 #ifndef OPENSSL_NO_DH
1962 dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto);
1963 dh_tmp_export = !c->dh_tmp_auto && (c->dh_tmp_cb != NULL ||
1965 && DH_size(c->dh_tmp) * 8 <= kl));
1967 dh_tmp = dh_tmp_export = 0;
1970 #ifndef OPENSSL_NO_EC
1971 have_ecdh_tmp = (c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
1973 cpk = &(c->pkeys[SSL_PKEY_RSA_ENC]);
1974 rsa_enc = pvalid[SSL_PKEY_RSA_ENC] & CERT_PKEY_VALID;
1975 rsa_enc_export = (rsa_enc && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
1976 cpk = &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1977 rsa_sign = pvalid[SSL_PKEY_RSA_SIGN] & CERT_PKEY_SIGN;
1978 cpk = &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1979 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_SIGN;
1980 cpk = &(c->pkeys[SSL_PKEY_DH_RSA]);
1981 dh_rsa = pvalid[SSL_PKEY_DH_RSA] & CERT_PKEY_VALID;
1982 dh_rsa_export = (dh_rsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
1983 cpk = &(c->pkeys[SSL_PKEY_DH_DSA]);
1984 dh_dsa = pvalid[SSL_PKEY_DH_DSA] & CERT_PKEY_VALID;
1985 dh_dsa_export = (dh_dsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
1986 cpk = &(c->pkeys[SSL_PKEY_ECC]);
1987 #ifndef OPENSSL_NO_EC
1988 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
1997 "rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1998 rsa_tmp, rsa_tmp_export, dh_tmp, have_ecdh_tmp, rsa_enc,
1999 rsa_enc_export, rsa_sign, dsa_sign, dh_rsa, dh_dsa);
2002 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2003 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2004 mask_k |= SSL_kGOST;
2005 mask_a |= SSL_aGOST01;
2007 cpk = &(c->pkeys[SSL_PKEY_GOST94]);
2008 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2009 mask_k |= SSL_kGOST;
2010 mask_a |= SSL_aGOST94;
2013 if (rsa_enc || (rsa_tmp && rsa_sign))
2015 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
2016 emask_k |= SSL_kRSA;
2019 emask_k |= SSL_kDHE;
2027 emask_k |= SSL_kDHr;
2032 emask_k |= SSL_kDHd;
2034 if (mask_k & (SSL_kDHr | SSL_kDHd))
2037 if (rsa_enc || rsa_sign) {
2039 emask_a |= SSL_aRSA;
2044 emask_a |= SSL_aDSS;
2047 mask_a |= SSL_aNULL;
2048 emask_a |= SSL_aNULL;
2051 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
2052 * depending on the key usage extension.
2054 #ifndef OPENSSL_NO_EC
2055 if (have_ecc_cert) {
2056 cpk = &c->pkeys[SSL_PKEY_ECC];
2058 /* This call populates extension flags (ex_flags) */
2059 X509_check_purpose(x, -1, 0);
2060 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2061 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
2062 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2063 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
2064 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
2066 ecc_pkey = X509_get_pubkey(x);
2067 ecc_pkey_size = (ecc_pkey != NULL) ? EVP_PKEY_bits(ecc_pkey) : 0;
2068 EVP_PKEY_free(ecc_pkey);
2069 if ((x->sig_alg) && (x->sig_alg->algorithm)) {
2070 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2071 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2075 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa) {
2076 mask_k |= SSL_kECDHr;
2077 mask_a |= SSL_aECDH;
2078 if (ecc_pkey_size <= 163) {
2079 emask_k |= SSL_kECDHr;
2080 emask_a |= SSL_aECDH;
2084 if (pk_nid == NID_X9_62_id_ecPublicKey) {
2085 mask_k |= SSL_kECDHe;
2086 mask_a |= SSL_aECDH;
2087 if (ecc_pkey_size <= 163) {
2088 emask_k |= SSL_kECDHe;
2089 emask_a |= SSL_aECDH;
2094 mask_a |= SSL_aECDSA;
2095 emask_a |= SSL_aECDSA;
2100 #ifndef OPENSSL_NO_EC
2101 if (have_ecdh_tmp) {
2102 mask_k |= SSL_kECDHE;
2103 emask_k |= SSL_kECDHE;
2107 #ifndef OPENSSL_NO_PSK
2110 emask_k |= SSL_kPSK;
2111 emask_a |= SSL_aPSK;
2114 s->s3->tmp.mask_k = mask_k;
2115 s->s3->tmp.mask_a = mask_a;
2116 s->s3->tmp.export_mask_k = emask_k;
2117 s->s3->tmp.export_mask_a = emask_a;
2120 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2121 #define ku_reject(x, usage) \
2122 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2124 #ifndef OPENSSL_NO_EC
2126 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2128 unsigned long alg_k, alg_a;
2129 EVP_PKEY *pkey = NULL;
2131 int signature_nid = 0, md_nid = 0, pk_nid = 0;
2132 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2134 alg_k = cs->algorithm_mkey;
2135 alg_a = cs->algorithm_auth;
2137 if (SSL_C_IS_EXPORT(cs)) {
2138 /* ECDH key length in export ciphers must be <= 163 bits */
2139 pkey = X509_get_pubkey(x);
2142 keysize = EVP_PKEY_bits(pkey);
2143 EVP_PKEY_free(pkey);
2148 /* This call populates the ex_flags field correctly */
2149 X509_check_purpose(x, -1, 0);
2150 if ((x->sig_alg) && (x->sig_alg->algorithm)) {
2151 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2152 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2154 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr) {
2155 /* key usage, if present, must allow key agreement */
2156 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT)) {
2157 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2158 SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2161 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION) {
2162 /* signature alg must be ECDSA */
2163 if (pk_nid != NID_X9_62_id_ecPublicKey) {
2164 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2165 SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2169 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION) {
2170 /* signature alg must be RSA */
2172 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa) {
2173 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2174 SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2179 if (alg_a & SSL_aECDSA) {
2180 /* key usage, if present, must allow signing */
2181 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE)) {
2182 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2183 SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2188 return 1; /* all checks are ok */
2193 static int ssl_get_server_cert_index(const SSL *s)
2196 idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2197 if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2198 idx = SSL_PKEY_RSA_SIGN;
2200 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX, ERR_R_INTERNAL_ERROR);
2204 CERT_PKEY *ssl_get_server_send_pkey(SSL *s)
2210 if (!s->s3 || !s->s3->tmp.new_cipher)
2212 ssl_set_masks(s, s->s3->tmp.new_cipher);
2214 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2216 * Broken protocol test: return last used certificate: which may mismatch
2219 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2223 i = ssl_get_server_cert_index(s);
2225 /* This may or may not be an error. */
2230 return &c->pkeys[i];
2233 EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher,
2236 unsigned long alg_a;
2240 alg_a = cipher->algorithm_auth;
2243 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2245 * Broken protocol test: use last key: which may mismatch the one
2248 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2249 idx = c->key - c->pkeys;
2253 if ((alg_a & SSL_aDSS) &&
2254 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2255 idx = SSL_PKEY_DSA_SIGN;
2256 else if (alg_a & SSL_aRSA) {
2257 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2258 idx = SSL_PKEY_RSA_SIGN;
2259 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2260 idx = SSL_PKEY_RSA_ENC;
2261 } else if ((alg_a & SSL_aECDSA) &&
2262 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2265 SSLerr(SSL_F_SSL_GET_SIGN_PKEY, ERR_R_INTERNAL_ERROR);
2269 *pmd = s->s3->tmp.md[idx];
2270 return c->pkeys[idx].privatekey;
2273 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
2274 size_t *serverinfo_length)
2278 *serverinfo_length = 0;
2281 i = ssl_get_server_cert_index(s);
2285 if (c->pkeys[i].serverinfo == NULL)
2288 *serverinfo = c->pkeys[i].serverinfo;
2289 *serverinfo_length = c->pkeys[i].serverinfo_length;
2293 void ssl_update_cache(SSL *s, int mode)
2298 * If the session_id_length is 0, we are not supposed to cache it, and it
2299 * would be rather hard to do anyway :-)
2301 if (s->session->session_id_length == 0)
2304 i = s->session_ctx->session_cache_mode;
2305 if ((i & mode) && (!s->hit)
2306 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2307 || SSL_CTX_add_session(s->session_ctx, s->session))
2308 && (s->session_ctx->new_session_cb != NULL)) {
2309 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION);
2310 if (!s->session_ctx->new_session_cb(s, s->session))
2311 SSL_SESSION_free(s->session);
2314 /* auto flush every 255 connections */
2315 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
2316 if ((((mode & SSL_SESS_CACHE_CLIENT)
2317 ? s->session_ctx->stats.sess_connect_good
2318 : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) {
2319 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
2324 const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx)
2329 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2334 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2339 if (s->method != meth) {
2340 if (s->handshake_func != NULL)
2341 conn = (s->handshake_func == s->method->ssl_connect);
2343 if (s->method->version == meth->version)
2346 s->method->ssl_free(s);
2348 ret = s->method->ssl_new(s);
2352 s->handshake_func = meth->ssl_connect;
2354 s->handshake_func = meth->ssl_accept;
2359 int SSL_get_error(const SSL *s, int i)
2366 return (SSL_ERROR_NONE);
2369 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
2370 * where we do encode the error
2372 if ((l = ERR_peek_error()) != 0) {
2373 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2374 return (SSL_ERROR_SYSCALL);
2376 return (SSL_ERROR_SSL);
2379 if ((i < 0) && SSL_want_read(s)) {
2380 bio = SSL_get_rbio(s);
2381 if (BIO_should_read(bio))
2382 return (SSL_ERROR_WANT_READ);
2383 else if (BIO_should_write(bio))
2385 * This one doesn't make too much sense ... We never try to write
2386 * to the rbio, and an application program where rbio and wbio
2387 * are separate couldn't even know what it should wait for.
2388 * However if we ever set s->rwstate incorrectly (so that we have
2389 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
2390 * wbio *are* the same, this test works around that bug; so it
2391 * might be safer to keep it.
2393 return (SSL_ERROR_WANT_WRITE);
2394 else if (BIO_should_io_special(bio)) {
2395 reason = BIO_get_retry_reason(bio);
2396 if (reason == BIO_RR_CONNECT)
2397 return (SSL_ERROR_WANT_CONNECT);
2398 else if (reason == BIO_RR_ACCEPT)
2399 return (SSL_ERROR_WANT_ACCEPT);
2401 return (SSL_ERROR_SYSCALL); /* unknown */
2405 if ((i < 0) && SSL_want_write(s)) {
2406 bio = SSL_get_wbio(s);
2407 if (BIO_should_write(bio))
2408 return (SSL_ERROR_WANT_WRITE);
2409 else if (BIO_should_read(bio))
2411 * See above (SSL_want_read(s) with BIO_should_write(bio))
2413 return (SSL_ERROR_WANT_READ);
2414 else if (BIO_should_io_special(bio)) {
2415 reason = BIO_get_retry_reason(bio);
2416 if (reason == BIO_RR_CONNECT)
2417 return (SSL_ERROR_WANT_CONNECT);
2418 else if (reason == BIO_RR_ACCEPT)
2419 return (SSL_ERROR_WANT_ACCEPT);
2421 return (SSL_ERROR_SYSCALL);
2424 if ((i < 0) && SSL_want_x509_lookup(s)) {
2425 return (SSL_ERROR_WANT_X509_LOOKUP);
2429 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2430 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2431 return (SSL_ERROR_ZERO_RETURN);
2433 return (SSL_ERROR_SYSCALL);
2436 int SSL_do_handshake(SSL *s)
2440 if (s->handshake_func == NULL) {
2441 SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET);
2445 s->method->ssl_renegotiate_check(s);
2447 if (SSL_in_init(s) || SSL_in_before(s)) {
2448 ret = s->handshake_func(s);
2454 * For the next 2 functions, SSL_clear() sets shutdown and so one of these
2455 * calls will reset it
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;
2463 /* clear the current cipher */
2464 ssl_clear_cipher_ctx(s);
2465 ssl_clear_hash_ctx(&s->read_hash);
2466 ssl_clear_hash_ctx(&s->write_hash);
2469 void SSL_set_connect_state(SSL *s)
2473 s->state = SSL_ST_CONNECT | SSL_ST_BEFORE;
2474 s->handshake_func = s->method->ssl_connect;
2475 /* clear the current cipher */
2476 ssl_clear_cipher_ctx(s);
2477 ssl_clear_hash_ctx(&s->read_hash);
2478 ssl_clear_hash_ctx(&s->write_hash);
2481 int ssl_undefined_function(SSL *s)
2483 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2487 int ssl_undefined_void_function(void)
2489 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,
2490 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2494 int ssl_undefined_const_function(const SSL *s)
2496 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,
2497 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2501 SSL_METHOD *ssl_bad_method(int ver)
2503 SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2507 const char *SSL_get_version(const SSL *s)
2509 if (s->version == TLS1_2_VERSION)
2511 else if (s->version == TLS1_1_VERSION)
2513 else if (s->version == TLS1_VERSION)
2515 else if (s->version == SSL3_VERSION)
2517 else if (s->version == DTLS1_BAD_VER)
2518 return ("DTLSv0.9");
2519 else if (s->version == DTLS1_VERSION)
2521 else if (s->version == DTLS1_2_VERSION)
2522 return ("DTLSv1.2");
2527 SSL *SSL_dup(SSL *s)
2529 STACK_OF(X509_NAME) *sk;
2534 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2537 ret->version = s->version;
2538 ret->type = s->type;
2539 ret->method = s->method;
2541 if (s->session != NULL) {
2542 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2543 if (!SSL_copy_session_id(ret, s))
2547 * No session has been established yet, so we have to expect that
2548 * s->cert or ret->cert will be changed later -- they should not both
2549 * point to the same object, and thus we can't use
2550 * SSL_copy_session_id.
2553 ret->method->ssl_free(ret);
2554 ret->method = s->method;
2555 ret->method->ssl_new(ret);
2557 if (s->cert != NULL) {
2558 ssl_cert_free(ret->cert);
2559 ret->cert = ssl_cert_dup(s->cert);
2560 if (ret->cert == NULL)
2564 if (!SSL_set_session_id_context(ret, s->sid_ctx, s->sid_ctx_length))
2568 ret->options = s->options;
2569 ret->mode = s->mode;
2570 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
2571 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
2572 ret->msg_callback = s->msg_callback;
2573 ret->msg_callback_arg = s->msg_callback_arg;
2574 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
2575 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
2576 ret->generate_session_id = s->generate_session_id;
2578 SSL_set_info_callback(ret, SSL_get_info_callback(s));
2580 ret->debug = s->debug;
2582 /* copy app data, a little dangerous perhaps */
2583 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2586 /* setup rbio, and wbio */
2587 if (s->rbio != NULL) {
2588 if (!BIO_dup_state(s->rbio, (char *)&ret->rbio))
2591 if (s->wbio != NULL) {
2592 if (s->wbio != s->rbio) {
2593 if (!BIO_dup_state(s->wbio, (char *)&ret->wbio))
2596 ret->wbio = ret->rbio;
2598 ret->rwstate = s->rwstate;
2599 ret->in_handshake = s->in_handshake;
2600 ret->handshake_func = s->handshake_func;
2601 ret->server = s->server;
2602 ret->renegotiate = s->renegotiate;
2603 ret->new_session = s->new_session;
2604 ret->quiet_shutdown = s->quiet_shutdown;
2605 ret->shutdown = s->shutdown;
2606 ret->state = s->state; /* SSL_dup does not really work at any state,
2608 RECORD_LAYER_dup(&ret->rlayer, &s->rlayer);
2609 ret->init_num = 0; /* would have to copy ret->init_buf,
2610 * ret->init_msg, ret->init_num,
2614 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2616 /* dup the cipher_list and cipher_list_by_id stacks */
2617 if (s->cipher_list != NULL) {
2618 if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2621 if (s->cipher_list_by_id != NULL)
2622 if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2626 /* Dup the client_CA list */
2627 if (s->client_CA != NULL) {
2628 if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL)
2630 ret->client_CA = sk;
2631 for (i = 0; i < sk_X509_NAME_num(sk); i++) {
2632 xn = sk_X509_NAME_value(sk, i);
2633 if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) {
2646 void ssl_clear_cipher_ctx(SSL *s)
2648 if (s->enc_read_ctx != NULL) {
2649 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2650 OPENSSL_free(s->enc_read_ctx);
2651 s->enc_read_ctx = NULL;
2653 if (s->enc_write_ctx != NULL) {
2654 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2655 OPENSSL_free(s->enc_write_ctx);
2656 s->enc_write_ctx = NULL;
2658 #ifndef OPENSSL_NO_COMP
2659 COMP_CTX_free(s->expand);
2661 COMP_CTX_free(s->compress);
2666 X509 *SSL_get_certificate(const SSL *s)
2668 if (s->cert != NULL)
2669 return (s->cert->key->x509);
2674 EVP_PKEY *SSL_get_privatekey(const SSL *s)
2676 if (s->cert != NULL)
2677 return (s->cert->key->privatekey);
2682 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
2684 if (ctx->cert != NULL)
2685 return ctx->cert->key->x509;
2690 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
2692 if (ctx->cert != NULL)
2693 return ctx->cert->key->privatekey;
2698 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2700 if ((s->session != NULL) && (s->session->cipher != NULL))
2701 return (s->session->cipher);
2705 const COMP_METHOD *SSL_get_current_compression(SSL *s)
2707 #ifndef OPENSSL_NO_COMP
2708 return s->compress ? COMP_CTX_get_method(s->compress) : NULL;
2714 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2716 #ifndef OPENSSL_NO_COMP
2717 return s->expand ? COMP_CTX_get_method(s->expand) : NULL;
2723 int ssl_init_wbio_buffer(SSL *s, int push)
2727 if (s->bbio == NULL) {
2728 bbio = BIO_new(BIO_f_buffer());
2734 if (s->bbio == s->wbio)
2735 s->wbio = BIO_pop(s->wbio);
2737 (void)BIO_reset(bbio);
2738 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2739 if (!BIO_set_read_buffer_size(bbio, 1)) {
2740 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB);
2744 if (s->wbio != bbio)
2745 s->wbio = BIO_push(bbio, s->wbio);
2747 if (s->wbio == bbio)
2748 s->wbio = BIO_pop(bbio);
2753 void ssl_free_wbio_buffer(SSL *s)
2755 /* callers ensure s is never null */
2756 if (s->bbio == NULL)
2759 if (s->bbio == s->wbio) {
2760 /* remove buffering */
2761 s->wbio = BIO_pop(s->wbio);
2762 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids
2763 * adding one more preprocessor symbol */
2764 assert(s->wbio != NULL);
2771 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
2773 ctx->quiet_shutdown = mode;
2776 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2778 return (ctx->quiet_shutdown);
2781 void SSL_set_quiet_shutdown(SSL *s, int mode)
2783 s->quiet_shutdown = mode;
2786 int SSL_get_quiet_shutdown(const SSL *s)
2788 return (s->quiet_shutdown);
2791 void SSL_set_shutdown(SSL *s, int mode)
2796 int SSL_get_shutdown(const SSL *s)
2798 return (s->shutdown);
2801 int SSL_version(const SSL *s)
2803 return (s->version);
2806 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2811 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
2814 if (ssl->ctx == ctx)
2817 ctx = ssl->initial_ctx;
2818 new_cert = ssl_cert_dup(ctx->cert);
2819 if (new_cert == NULL) {
2822 ssl_cert_free(ssl->cert);
2823 ssl->cert = new_cert;
2826 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
2827 * so setter APIs must prevent invalid lengths from entering the system.
2829 OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx));
2832 * If the session ID context matches that of the parent SSL_CTX,
2833 * inherit it from the new SSL_CTX as well. If however the context does
2834 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
2835 * leave it unchanged.
2837 if ((ssl->ctx != NULL) &&
2838 (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
2839 (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) {
2840 ssl->sid_ctx_length = ctx->sid_ctx_length;
2841 memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx));
2844 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
2845 SSL_CTX_free(ssl->ctx); /* decrement reference count */
2851 #ifndef OPENSSL_NO_STDIO
2852 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2854 return (X509_STORE_set_default_paths(ctx->cert_store));
2857 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2860 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath));
2864 void SSL_set_info_callback(SSL *ssl,
2865 void (*cb) (const SSL *ssl, int type, int val))
2867 ssl->info_callback = cb;
2871 * One compiler (Diab DCC) doesn't like argument names in returned function
2874 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
2877 return ssl->info_callback;
2880 int SSL_state(const SSL *ssl)
2882 return (ssl->state);
2885 void SSL_set_state(SSL *ssl, int state)
2890 void SSL_set_verify_result(SSL *ssl, long arg)
2892 ssl->verify_result = arg;
2895 long SSL_get_verify_result(const SSL *ssl)
2897 return (ssl->verify_result);
2900 size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
2903 return sizeof(ssl->s3->client_random);
2904 if (outlen > sizeof(ssl->s3->client_random))
2905 outlen = sizeof(ssl->s3->client_random);
2906 memcpy(out, ssl->s3->client_random, outlen);
2910 size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
2913 return sizeof(ssl->s3->server_random);
2914 if (outlen > sizeof(ssl->s3->server_random))
2915 outlen = sizeof(ssl->s3->server_random);
2916 memcpy(out, ssl->s3->server_random, outlen);
2920 size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
2921 unsigned char *out, size_t outlen)
2923 if (session->master_key_length < 0) {
2924 /* Should never happen */
2928 return session->master_key_length;
2929 if (outlen > (size_t)session->master_key_length)
2930 outlen = session->master_key_length;
2931 memcpy(out, session->master_key, outlen);
2935 int SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
2936 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
2938 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2939 new_func, dup_func, free_func);
2942 int SSL_set_ex_data(SSL *s, int idx, void *arg)
2944 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
2947 void *SSL_get_ex_data(const SSL *s, int idx)
2949 return (CRYPTO_get_ex_data(&s->ex_data, idx));
2952 int SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
2953 CRYPTO_EX_dup *dup_func,
2954 CRYPTO_EX_free *free_func)
2956 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2957 new_func, dup_func, free_func);
2960 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
2962 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
2965 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
2967 return (CRYPTO_get_ex_data(&s->ex_data, idx));
2975 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
2977 return (ctx->cert_store);
2980 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
2982 X509_STORE_free(ctx->cert_store);
2983 ctx->cert_store = store;
2986 int SSL_want(const SSL *s)
2988 return (s->rwstate);
2992 * \brief Set the callback for generating temporary RSA keys.
2993 * \param ctx the SSL context.
2994 * \param cb the callback
2997 #ifndef OPENSSL_NO_RSA
2998 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb) (SSL *ssl,
3002 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb);
3005 void SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb) (SSL *ssl,
3009 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb);
3015 * \brief The RSA temporary key callback function.
3016 * \param ssl the SSL session.
3017 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3018 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3019 * of the required key in bits.
3020 * \return the temporary RSA key.
3021 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3024 RSA *cb(SSL *ssl, int is_export, int keylength)
3030 * \brief Set the callback for generating temporary DH keys.
3031 * \param ctx the SSL context.
3032 * \param dh the callback
3035 #ifndef OPENSSL_NO_DH
3036 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
3037 DH *(*dh) (SSL *ssl, int is_export,
3040 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3043 void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export,
3046 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3050 #ifndef OPENSSL_NO_EC
3051 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,
3052 EC_KEY *(*ecdh) (SSL *ssl, int is_export,
3055 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB,
3056 (void (*)(void))ecdh);
3059 void SSL_set_tmp_ecdh_callback(SSL *ssl,
3060 EC_KEY *(*ecdh) (SSL *ssl, int is_export,
3063 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB, (void (*)(void))ecdh);
3067 #ifndef OPENSSL_NO_PSK
3068 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3070 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3071 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT,
3072 SSL_R_DATA_LENGTH_TOO_LONG);
3075 OPENSSL_free(ctx->psk_identity_hint);
3076 if (identity_hint != NULL) {
3077 ctx->psk_identity_hint = BUF_strdup(identity_hint);
3078 if (ctx->psk_identity_hint == NULL)
3081 ctx->psk_identity_hint = NULL;
3085 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3090 if (s->session == NULL)
3091 return 1; /* session not created yet, ignored */
3093 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3094 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3097 OPENSSL_free(s->session->psk_identity_hint);
3098 if (identity_hint != NULL) {
3099 s->session->psk_identity_hint = BUF_strdup(identity_hint);
3100 if (s->session->psk_identity_hint == NULL)
3103 s->session->psk_identity_hint = NULL;
3107 const char *SSL_get_psk_identity_hint(const SSL *s)
3109 if (s == NULL || s->session == NULL)
3111 return (s->session->psk_identity_hint);
3114 const char *SSL_get_psk_identity(const SSL *s)
3116 if (s == NULL || s->session == NULL)
3118 return (s->session->psk_identity);
3121 void SSL_set_psk_client_callback(SSL *s,
3122 unsigned int (*cb) (SSL *ssl,
3131 s->psk_client_callback = cb;
3134 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3135 unsigned int (*cb) (SSL *ssl,
3144 ctx->psk_client_callback = cb;
3147 void SSL_set_psk_server_callback(SSL *s,
3148 unsigned int (*cb) (SSL *ssl,
3149 const char *identity,
3154 s->psk_server_callback = cb;
3157 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3158 unsigned int (*cb) (SSL *ssl,
3159 const char *identity,
3164 ctx->psk_server_callback = cb;
3168 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
3169 void (*cb) (int write_p, int version,
3170 int content_type, const void *buf,
3171 size_t len, SSL *ssl, void *arg))
3173 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3176 void SSL_set_msg_callback(SSL *ssl,
3177 void (*cb) (int write_p, int version,
3178 int content_type, const void *buf,
3179 size_t len, SSL *ssl, void *arg))
3181 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3184 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
3185 int (*cb) (SSL *ssl,
3189 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3190 (void (*)(void))cb);
3193 void SSL_set_not_resumable_session_callback(SSL *ssl,
3194 int (*cb) (SSL *ssl,
3195 int is_forward_secure))
3197 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3198 (void (*)(void))cb);
3202 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3203 * vairable, freeing EVP_MD_CTX previously stored in that variable, if any.
3204 * If EVP_MD pointer is passed, initializes ctx with this md Returns newly
3208 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
3210 ssl_clear_hash_ctx(hash);
3211 *hash = EVP_MD_CTX_create();
3213 EVP_DigestInit_ex(*hash, md, NULL);
3217 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3221 EVP_MD_CTX_destroy(*hash);
3225 /* Retrieve handshake hashes */
3226 int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen)
3228 unsigned char *p = out;
3233 EVP_MD_CTX_init(&ctx);
3234 for (idx = 0; ssl_get_handshake_digest(idx, &mask, &md); idx++) {
3235 if (mask & ssl_get_algorithm2(s)) {
3236 int hashsize = EVP_MD_size(md);
3237 EVP_MD_CTX *hdgst = s->s3->handshake_dgst[idx];
3238 if (!hdgst || hashsize < 0 || hashsize > outlen)
3240 if (!EVP_MD_CTX_copy_ex(&ctx, hdgst))
3242 if (!EVP_DigestFinal_ex(&ctx, p, NULL))
3250 EVP_MD_CTX_cleanup(&ctx);
3254 void SSL_set_debug(SSL *s, int debug)
3259 int SSL_cache_hit(SSL *s)
3264 int SSL_is_server(SSL *s)
3269 void SSL_set_security_level(SSL *s, int level)
3271 s->cert->sec_level = level;
3274 int SSL_get_security_level(const SSL *s)
3276 return s->cert->sec_level;
3279 void SSL_set_security_callback(SSL *s,
3280 int (*cb) (SSL *s, SSL_CTX *ctx, int op,
3281 int bits, int nid, void *other,
3284 s->cert->sec_cb = cb;
3287 int (*SSL_get_security_callback(const SSL *s)) (SSL *s, SSL_CTX *ctx, int op,
3289 void *other, void *ex) {
3290 return s->cert->sec_cb;
3293 void SSL_set0_security_ex_data(SSL *s, void *ex)
3295 s->cert->sec_ex = ex;
3298 void *SSL_get0_security_ex_data(const SSL *s)
3300 return s->cert->sec_ex;
3303 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
3305 ctx->cert->sec_level = level;
3308 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
3310 return ctx->cert->sec_level;
3313 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
3314 int (*cb) (SSL *s, SSL_CTX *ctx, int op,
3315 int bits, int nid, void *other,
3318 ctx->cert->sec_cb = cb;
3321 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (SSL *s,
3327 return ctx->cert->sec_cb;
3330 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
3332 ctx->cert->sec_ex = ex;
3335 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
3337 return ctx->cert->sec_ex;
3340 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);