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);
222 s->version = s->method->version;
223 s->client_version = s->version;
224 s->rwstate = SSL_NOTHING;
226 BUF_MEM_free(s->init_buf);
230 s->no_cert_verify = 0;
233 * Check to see if we were changed into a different method, if so, revert
234 * back if we are not doing session-id reuse.
236 if (!s->in_handshake && (s->session == NULL)
237 && (s->method != s->ctx->method)) {
238 s->method->ssl_free(s);
239 s->method = s->ctx->method;
240 if (!s->method->ssl_new(s))
243 s->method->ssl_clear(s);
245 RECORD_LAYER_clear(&s->rlayer);
250 /** Used to change an SSL_CTXs default SSL method type */
251 int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
253 STACK_OF(SSL_CIPHER) *sk;
257 sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list),
258 &(ctx->cipher_list_by_id),
259 SSL_DEFAULT_CIPHER_LIST, ctx->cert);
260 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
261 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,
262 SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
268 SSL *SSL_new(SSL_CTX *ctx)
273 SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);
276 if (ctx->method == NULL) {
277 SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
281 s = OPENSSL_zalloc(sizeof(*s));
285 RECORD_LAYER_init(&s->rlayer, s);
287 s->options = ctx->options;
289 s->max_cert_list = ctx->max_cert_list;
293 * Earlier library versions used to copy the pointer to the CERT, not
294 * its contents; only when setting new parameters for the per-SSL
295 * copy, ssl_cert_new would be called (and the direct reference to
296 * the per-SSL_CTX settings would be lost, but those still were
297 * indirectly accessed for various purposes, and for that reason they
298 * used to be known as s->ctx->default_cert). Now we don't look at the
299 * SSL_CTX's CERT after having duplicated it once.
301 s->cert = ssl_cert_dup(ctx->cert);
305 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
306 s->msg_callback = ctx->msg_callback;
307 s->msg_callback_arg = ctx->msg_callback_arg;
308 s->verify_mode = ctx->verify_mode;
309 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
310 s->sid_ctx_length = ctx->sid_ctx_length;
311 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
312 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
313 s->verify_callback = ctx->default_verify_callback;
314 s->generate_session_id = ctx->generate_session_id;
316 s->param = X509_VERIFY_PARAM_new();
319 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
320 s->quiet_shutdown = ctx->quiet_shutdown;
321 s->max_send_fragment = ctx->max_send_fragment;
323 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
325 s->tlsext_debug_cb = 0;
326 s->tlsext_debug_arg = NULL;
327 s->tlsext_ticket_expected = 0;
328 s->tlsext_status_type = -1;
329 s->tlsext_status_expected = 0;
330 s->tlsext_ocsp_ids = NULL;
331 s->tlsext_ocsp_exts = NULL;
332 s->tlsext_ocsp_resp = NULL;
333 s->tlsext_ocsp_resplen = -1;
334 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
335 s->initial_ctx = ctx;
336 # ifndef OPENSSL_NO_EC
337 if (ctx->tlsext_ecpointformatlist) {
338 s->tlsext_ecpointformatlist =
339 BUF_memdup(ctx->tlsext_ecpointformatlist,
340 ctx->tlsext_ecpointformatlist_length);
341 if (!s->tlsext_ecpointformatlist)
343 s->tlsext_ecpointformatlist_length =
344 ctx->tlsext_ecpointformatlist_length;
346 if (ctx->tlsext_ellipticcurvelist) {
347 s->tlsext_ellipticcurvelist =
348 BUF_memdup(ctx->tlsext_ellipticcurvelist,
349 ctx->tlsext_ellipticcurvelist_length);
350 if (!s->tlsext_ellipticcurvelist)
352 s->tlsext_ellipticcurvelist_length =
353 ctx->tlsext_ellipticcurvelist_length;
356 # ifndef OPENSSL_NO_NEXTPROTONEG
357 s->next_proto_negotiated = NULL;
360 if (s->ctx->alpn_client_proto_list) {
361 s->alpn_client_proto_list =
362 OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);
363 if (s->alpn_client_proto_list == NULL)
365 memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,
366 s->ctx->alpn_client_proto_list_len);
367 s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;
370 s->verify_result = X509_V_OK;
372 s->method = ctx->method;
374 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;
833 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
837 if ((s == NULL) || (s->session == NULL))
840 r = s->session->peer_chain;
843 * If we are a client, cert_chain includes the peer's own certificate; if
844 * we are a server, it does not.
851 * Now in theory, since the calling process own 't' it should be safe to
852 * modify. We need to be able to read f without being hassled
854 int SSL_copy_session_id(SSL *t, const SSL *f)
856 /* Do we need to to SSL locking? */
857 if (!SSL_set_session(t, SSL_get_session(f))) {
862 * what if we are setup as SSLv2 but want to talk SSLv3 or vice-versa
864 if (t->method != f->method) {
865 t->method->ssl_free(t); /* cleanup current */
866 t->method = f->method; /* change method */
867 t->method->ssl_new(t); /* setup new */
870 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT);
871 ssl_cert_free(t->cert);
873 if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) {
880 /* Fix this so it checks all the valid key/cert options */
881 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
884 (ctx->cert->key->x509 == NULL)) {
885 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
886 SSL_R_NO_CERTIFICATE_ASSIGNED);
889 if (ctx->cert->key->privatekey == NULL) {
890 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
891 SSL_R_NO_PRIVATE_KEY_ASSIGNED);
894 return (X509_check_private_key
895 (ctx->cert->key->x509, ctx->cert->key->privatekey));
898 /* Fix this function so that it takes an optional type parameter */
899 int SSL_check_private_key(const SSL *ssl)
902 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
905 if (ssl->cert->key->x509 == NULL) {
906 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
909 if (ssl->cert->key->privatekey == NULL) {
910 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
913 return (X509_check_private_key(ssl->cert->key->x509,
914 ssl->cert->key->privatekey));
917 int SSL_accept(SSL *s)
919 if (s->handshake_func == 0)
920 /* Not properly initialized yet */
921 SSL_set_accept_state(s);
923 return (s->method->ssl_accept(s));
926 int SSL_connect(SSL *s)
928 if (s->handshake_func == 0)
929 /* Not properly initialized yet */
930 SSL_set_connect_state(s);
932 return (s->method->ssl_connect(s));
935 long SSL_get_default_timeout(const SSL *s)
937 return (s->method->get_timeout());
940 int SSL_read(SSL *s, void *buf, int num)
942 if (s->handshake_func == 0) {
943 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
947 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
948 s->rwstate = SSL_NOTHING;
951 return (s->method->ssl_read(s, buf, num));
954 int SSL_peek(SSL *s, void *buf, int num)
956 if (s->handshake_func == 0) {
957 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
961 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
964 return (s->method->ssl_peek(s, buf, num));
967 int SSL_write(SSL *s, const void *buf, int num)
969 if (s->handshake_func == 0) {
970 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
974 if (s->shutdown & SSL_SENT_SHUTDOWN) {
975 s->rwstate = SSL_NOTHING;
976 SSLerr(SSL_F_SSL_WRITE, SSL_R_PROTOCOL_IS_SHUTDOWN);
979 return (s->method->ssl_write(s, buf, num));
982 int SSL_shutdown(SSL *s)
985 * Note that this function behaves differently from what one might
986 * expect. Return values are 0 for no success (yet), 1 for success; but
987 * calling it once is usually not enough, even if blocking I/O is used
988 * (see ssl3_shutdown).
991 if (s->handshake_func == 0) {
992 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
996 if ((s != NULL) && !SSL_in_init(s))
997 return (s->method->ssl_shutdown(s));
1002 int SSL_renegotiate(SSL *s)
1004 if (s->renegotiate == 0)
1009 return (s->method->ssl_renegotiate(s));
1012 int SSL_renegotiate_abbreviated(SSL *s)
1014 if (s->renegotiate == 0)
1019 return (s->method->ssl_renegotiate(s));
1022 int SSL_renegotiate_pending(SSL *s)
1025 * becomes true when negotiation is requested; false again once a
1026 * handshake has finished
1028 return (s->renegotiate != 0);
1031 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
1036 case SSL_CTRL_GET_READ_AHEAD:
1037 return (RECORD_LAYER_get_read_ahead(&s->rlayer));
1038 case SSL_CTRL_SET_READ_AHEAD:
1039 l = RECORD_LAYER_get_read_ahead(&s->rlayer);
1040 RECORD_LAYER_set_read_ahead(&s->rlayer, larg);
1043 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1044 s->msg_callback_arg = parg;
1047 case SSL_CTRL_OPTIONS:
1048 return (s->options |= larg);
1049 case SSL_CTRL_CLEAR_OPTIONS:
1050 return (s->options &= ~larg);
1052 return (s->mode |= larg);
1053 case SSL_CTRL_CLEAR_MODE:
1054 return (s->mode &= ~larg);
1055 case SSL_CTRL_GET_MAX_CERT_LIST:
1056 return (s->max_cert_list);
1057 case SSL_CTRL_SET_MAX_CERT_LIST:
1058 l = s->max_cert_list;
1059 s->max_cert_list = larg;
1061 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1062 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1064 s->max_send_fragment = larg;
1066 case SSL_CTRL_GET_RI_SUPPORT:
1068 return s->s3->send_connection_binding;
1071 case SSL_CTRL_CERT_FLAGS:
1072 return (s->cert->cert_flags |= larg);
1073 case SSL_CTRL_CLEAR_CERT_FLAGS:
1074 return (s->cert->cert_flags &= ~larg);
1076 case SSL_CTRL_GET_RAW_CIPHERLIST:
1078 if (s->s3->tmp.ciphers_raw == NULL)
1080 *(unsigned char **)parg = s->s3->tmp.ciphers_raw;
1081 return (int)s->s3->tmp.ciphers_rawlen;
1083 return TLS_CIPHER_LEN;
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_zalloc(sizeof(*ret));
1693 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
1694 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1695 /* We take the system default. */
1696 ret->session_timeout = meth->get_timeout();
1697 ret->references = 1;
1698 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
1699 ret->verify_mode = SSL_VERIFY_NONE;
1700 if ((ret->cert = ssl_cert_new()) == NULL)
1703 ret->sessions = lh_SSL_SESSION_new();
1704 if (ret->sessions == NULL)
1706 ret->cert_store = X509_STORE_new();
1707 if (ret->cert_store == NULL)
1710 if (!ssl_create_cipher_list(ret->method,
1711 &ret->cipher_list, &ret->cipher_list_by_id,
1712 SSL_DEFAULT_CIPHER_LIST, ret->cert)
1713 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
1714 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);
1718 ret->param = X509_VERIFY_PARAM_new();
1722 if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {
1723 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1726 if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) {
1727 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1731 if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL)
1734 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1736 /* No compression for DTLS */
1737 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
1738 ret->comp_methods = SSL_COMP_get_compression_methods();
1740 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1742 /* Setup RFC4507 ticket keys */
1743 if ((RAND_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1744 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1745 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1746 ret->options |= SSL_OP_NO_TICKET;
1748 #ifndef OPENSSL_NO_SRP
1749 if (!SSL_CTX_SRP_CTX_init(ret))
1752 #ifndef OPENSSL_NO_ENGINE
1753 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1754 # define eng_strx(x) #x
1755 # define eng_str(x) eng_strx(x)
1756 /* Use specific client engine automatically... ignore errors */
1759 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1762 ENGINE_load_builtin_engines();
1763 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1765 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
1771 * Default is to connect to non-RI servers. When RI is more widely
1772 * deployed might change this.
1774 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
1778 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
1784 void SSL_CTX_free(SSL_CTX *a)
1791 i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_SSL_CTX);
1793 REF_PRINT("SSL_CTX", a);
1799 fprintf(stderr, "SSL_CTX_free, bad reference count\n");
1804 X509_VERIFY_PARAM_free(a->param);
1807 * Free internal session cache. However: the remove_cb() may reference
1808 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1809 * after the sessions were flushed.
1810 * As the ex_data handling routines might also touch the session cache,
1811 * the most secure solution seems to be: empty (flush) the cache, then
1812 * free ex_data, then finally free the cache.
1813 * (See ticket [openssl.org #212].)
1815 if (a->sessions != NULL)
1816 SSL_CTX_flush_sessions(a, 0);
1818 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1819 lh_SSL_SESSION_free(a->sessions);
1820 X509_STORE_free(a->cert_store);
1821 sk_SSL_CIPHER_free(a->cipher_list);
1822 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1823 ssl_cert_free(a->cert);
1824 sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free);
1825 sk_X509_pop_free(a->extra_certs, X509_free);
1826 a->comp_methods = NULL;
1827 #ifndef OPENSSL_NO_SRTP
1828 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
1830 #ifndef OPENSSL_NO_SRP
1831 SSL_CTX_SRP_CTX_free(a);
1833 #ifndef OPENSSL_NO_ENGINE
1834 if (a->client_cert_engine)
1835 ENGINE_finish(a->client_cert_engine);
1838 #ifndef OPENSSL_NO_EC
1839 OPENSSL_free(a->tlsext_ecpointformatlist);
1840 OPENSSL_free(a->tlsext_ellipticcurvelist);
1842 OPENSSL_free(a->alpn_client_proto_list);
1847 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1849 ctx->default_passwd_callback = cb;
1852 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
1854 ctx->default_passwd_callback_userdata = u;
1857 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
1858 int (*cb) (X509_STORE_CTX *, void *),
1861 ctx->app_verify_callback = cb;
1862 ctx->app_verify_arg = arg;
1865 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
1866 int (*cb) (int, X509_STORE_CTX *))
1868 ctx->verify_mode = mode;
1869 ctx->default_verify_callback = cb;
1872 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
1874 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
1877 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg),
1880 ssl_cert_set_cert_cb(c->cert, cb, arg);
1883 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
1885 ssl_cert_set_cert_cb(s->cert, cb, arg);
1888 void ssl_set_masks(SSL *s, const SSL_CIPHER *cipher)
1892 uint32_t *pvalid = s->s3->tmp.valid_flags;
1893 int rsa_enc, rsa_tmp, rsa_sign, dh_tmp, dh_rsa, dh_dsa, dsa_sign;
1894 int rsa_enc_export, dh_rsa_export, dh_dsa_export;
1895 int rsa_tmp_export, dh_tmp_export, kl;
1896 unsigned long mask_k, mask_a, emask_k, emask_a;
1897 #ifndef OPENSSL_NO_EC
1898 int have_ecc_cert, ecdsa_ok, ecc_pkey_size;
1899 int have_ecdh_tmp, ecdh_ok;
1901 EVP_PKEY *ecc_pkey = NULL;
1902 int pk_nid = 0, md_nid = 0;
1907 kl = SSL_C_EXPORT_PKEYLENGTH(cipher);
1909 #ifndef OPENSSL_NO_RSA
1910 rsa_tmp = (c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1911 rsa_tmp_export = (c->rsa_tmp_cb != NULL ||
1912 (rsa_tmp && RSA_size(c->rsa_tmp) * 8 <= kl));
1914 rsa_tmp = rsa_tmp_export = 0;
1916 #ifndef OPENSSL_NO_DH
1917 dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto);
1918 dh_tmp_export = !c->dh_tmp_auto && (c->dh_tmp_cb != NULL ||
1920 && DH_size(c->dh_tmp) * 8 <= kl));
1922 dh_tmp = dh_tmp_export = 0;
1925 #ifndef OPENSSL_NO_EC
1926 have_ecdh_tmp = (c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
1928 cpk = &(c->pkeys[SSL_PKEY_RSA_ENC]);
1929 rsa_enc = pvalid[SSL_PKEY_RSA_ENC] & CERT_PKEY_VALID;
1930 rsa_enc_export = (rsa_enc && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
1931 cpk = &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1932 rsa_sign = pvalid[SSL_PKEY_RSA_SIGN] & CERT_PKEY_SIGN;
1933 cpk = &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1934 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_SIGN;
1935 cpk = &(c->pkeys[SSL_PKEY_DH_RSA]);
1936 dh_rsa = pvalid[SSL_PKEY_DH_RSA] & CERT_PKEY_VALID;
1937 dh_rsa_export = (dh_rsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
1938 cpk = &(c->pkeys[SSL_PKEY_DH_DSA]);
1939 dh_dsa = pvalid[SSL_PKEY_DH_DSA] & CERT_PKEY_VALID;
1940 dh_dsa_export = (dh_dsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
1941 cpk = &(c->pkeys[SSL_PKEY_ECC]);
1942 #ifndef OPENSSL_NO_EC
1943 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
1952 "rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1953 rsa_tmp, rsa_tmp_export, dh_tmp, have_ecdh_tmp, rsa_enc,
1954 rsa_enc_export, rsa_sign, dsa_sign, dh_rsa, dh_dsa);
1957 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
1958 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
1959 mask_k |= SSL_kGOST;
1960 mask_a |= SSL_aGOST01;
1963 if (rsa_enc || (rsa_tmp && rsa_sign))
1965 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1966 emask_k |= SSL_kRSA;
1969 emask_k |= SSL_kDHE;
1977 emask_k |= SSL_kDHr;
1982 emask_k |= SSL_kDHd;
1984 if (mask_k & (SSL_kDHr | SSL_kDHd))
1987 if (rsa_enc || rsa_sign) {
1989 emask_a |= SSL_aRSA;
1994 emask_a |= SSL_aDSS;
1997 mask_a |= SSL_aNULL;
1998 emask_a |= SSL_aNULL;
2001 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
2002 * depending on the key usage extension.
2004 #ifndef OPENSSL_NO_EC
2005 if (have_ecc_cert) {
2007 cpk = &c->pkeys[SSL_PKEY_ECC];
2009 ex_kusage = X509_get_key_usage(x);
2010 ecdh_ok = ex_kusage & X509v3_KU_KEY_AGREEMENT;
2011 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
2012 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
2014 ecc_pkey = X509_get_pubkey(x);
2015 ecc_pkey_size = (ecc_pkey != NULL) ? EVP_PKEY_bits(ecc_pkey) : 0;
2016 EVP_PKEY_free(ecc_pkey);
2017 OBJ_find_sigid_algs(X509_get_signature_nid(x), &md_nid, &pk_nid);
2020 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa) {
2021 mask_k |= SSL_kECDHr;
2022 mask_a |= SSL_aECDH;
2023 if (ecc_pkey_size <= 163) {
2024 emask_k |= SSL_kECDHr;
2025 emask_a |= SSL_aECDH;
2029 if (pk_nid == NID_X9_62_id_ecPublicKey) {
2030 mask_k |= SSL_kECDHe;
2031 mask_a |= SSL_aECDH;
2032 if (ecc_pkey_size <= 163) {
2033 emask_k |= SSL_kECDHe;
2034 emask_a |= SSL_aECDH;
2039 mask_a |= SSL_aECDSA;
2040 emask_a |= SSL_aECDSA;
2045 #ifndef OPENSSL_NO_EC
2046 if (have_ecdh_tmp) {
2047 mask_k |= SSL_kECDHE;
2048 emask_k |= SSL_kECDHE;
2052 #ifndef OPENSSL_NO_PSK
2055 emask_k |= SSL_kPSK;
2056 emask_a |= SSL_aPSK;
2057 if (mask_k & SSL_kRSA)
2058 mask_k |= SSL_kRSAPSK;
2059 if (mask_k & SSL_kDHE)
2060 mask_k |= SSL_kDHEPSK;
2061 if (mask_k & SSL_kECDHE)
2062 mask_k |= SSL_kECDHEPSK;
2065 s->s3->tmp.mask_k = mask_k;
2066 s->s3->tmp.mask_a = mask_a;
2067 s->s3->tmp.export_mask_k = emask_k;
2068 s->s3->tmp.export_mask_a = emask_a;
2071 #ifndef OPENSSL_NO_EC
2073 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2075 unsigned long alg_k, alg_a;
2076 EVP_PKEY *pkey = NULL;
2078 int md_nid = 0, pk_nid = 0;
2079 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2080 uint32_t ex_kusage = X509_get_key_usage(x);
2082 alg_k = cs->algorithm_mkey;
2083 alg_a = cs->algorithm_auth;
2085 if (SSL_C_IS_EXPORT(cs)) {
2086 /* ECDH key length in export ciphers must be <= 163 bits */
2087 pkey = X509_get_pubkey(x);
2090 keysize = EVP_PKEY_bits(pkey);
2091 EVP_PKEY_free(pkey);
2096 OBJ_find_sigid_algs(X509_get_signature_nid(x), &md_nid, &pk_nid);
2098 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr) {
2099 /* key usage, if present, must allow key agreement */
2100 if (!(ex_kusage & X509v3_KU_KEY_AGREEMENT)) {
2101 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2102 SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2105 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION) {
2106 /* signature alg must be ECDSA */
2107 if (pk_nid != NID_X9_62_id_ecPublicKey) {
2108 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2109 SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2113 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION) {
2114 /* signature alg must be RSA */
2116 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa) {
2117 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2118 SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2123 if (alg_a & SSL_aECDSA) {
2124 /* key usage, if present, must allow signing */
2125 if (!(ex_kusage & X509v3_KU_DIGITAL_SIGNATURE)) {
2126 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2127 SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2132 return 1; /* all checks are ok */
2137 static int ssl_get_server_cert_index(const SSL *s)
2140 idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2141 if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2142 idx = SSL_PKEY_RSA_SIGN;
2144 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX, ERR_R_INTERNAL_ERROR);
2148 CERT_PKEY *ssl_get_server_send_pkey(SSL *s)
2154 if (!s->s3 || !s->s3->tmp.new_cipher)
2156 ssl_set_masks(s, s->s3->tmp.new_cipher);
2158 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2160 * Broken protocol test: return last used certificate: which may mismatch
2163 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2167 i = ssl_get_server_cert_index(s);
2169 /* This may or may not be an error. */
2174 return &c->pkeys[i];
2177 EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher,
2180 unsigned long alg_a;
2184 alg_a = cipher->algorithm_auth;
2187 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2189 * Broken protocol test: use last key: which may mismatch the one
2192 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2193 idx = c->key - c->pkeys;
2197 if ((alg_a & SSL_aDSS) &&
2198 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2199 idx = SSL_PKEY_DSA_SIGN;
2200 else if (alg_a & SSL_aRSA) {
2201 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2202 idx = SSL_PKEY_RSA_SIGN;
2203 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2204 idx = SSL_PKEY_RSA_ENC;
2205 } else if ((alg_a & SSL_aECDSA) &&
2206 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2209 SSLerr(SSL_F_SSL_GET_SIGN_PKEY, ERR_R_INTERNAL_ERROR);
2213 *pmd = s->s3->tmp.md[idx];
2214 return c->pkeys[idx].privatekey;
2217 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
2218 size_t *serverinfo_length)
2222 *serverinfo_length = 0;
2225 i = ssl_get_server_cert_index(s);
2229 if (c->pkeys[i].serverinfo == NULL)
2232 *serverinfo = c->pkeys[i].serverinfo;
2233 *serverinfo_length = c->pkeys[i].serverinfo_length;
2237 void ssl_update_cache(SSL *s, int mode)
2242 * If the session_id_length is 0, we are not supposed to cache it, and it
2243 * would be rather hard to do anyway :-)
2245 if (s->session->session_id_length == 0)
2248 i = s->session_ctx->session_cache_mode;
2249 if ((i & mode) && (!s->hit)
2250 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2251 || SSL_CTX_add_session(s->session_ctx, s->session))
2252 && (s->session_ctx->new_session_cb != NULL)) {
2253 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION);
2254 if (!s->session_ctx->new_session_cb(s, s->session))
2255 SSL_SESSION_free(s->session);
2258 /* auto flush every 255 connections */
2259 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
2260 if ((((mode & SSL_SESS_CACHE_CLIENT)
2261 ? s->session_ctx->stats.sess_connect_good
2262 : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) {
2263 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
2268 const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx)
2273 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2278 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2283 if (s->method != meth) {
2284 if (s->handshake_func != NULL)
2285 conn = (s->handshake_func == s->method->ssl_connect);
2287 if (s->method->version == meth->version)
2290 s->method->ssl_free(s);
2292 ret = s->method->ssl_new(s);
2296 s->handshake_func = meth->ssl_connect;
2298 s->handshake_func = meth->ssl_accept;
2303 int SSL_get_error(const SSL *s, int i)
2310 return (SSL_ERROR_NONE);
2313 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
2314 * where we do encode the error
2316 if ((l = ERR_peek_error()) != 0) {
2317 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2318 return (SSL_ERROR_SYSCALL);
2320 return (SSL_ERROR_SSL);
2323 if ((i < 0) && SSL_want_read(s)) {
2324 bio = SSL_get_rbio(s);
2325 if (BIO_should_read(bio))
2326 return (SSL_ERROR_WANT_READ);
2327 else if (BIO_should_write(bio))
2329 * This one doesn't make too much sense ... We never try to write
2330 * to the rbio, and an application program where rbio and wbio
2331 * are separate couldn't even know what it should wait for.
2332 * However if we ever set s->rwstate incorrectly (so that we have
2333 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
2334 * wbio *are* the same, this test works around that bug; so it
2335 * might be safer to keep it.
2337 return (SSL_ERROR_WANT_WRITE);
2338 else if (BIO_should_io_special(bio)) {
2339 reason = BIO_get_retry_reason(bio);
2340 if (reason == BIO_RR_CONNECT)
2341 return (SSL_ERROR_WANT_CONNECT);
2342 else if (reason == BIO_RR_ACCEPT)
2343 return (SSL_ERROR_WANT_ACCEPT);
2345 return (SSL_ERROR_SYSCALL); /* unknown */
2349 if ((i < 0) && SSL_want_write(s)) {
2350 bio = SSL_get_wbio(s);
2351 if (BIO_should_write(bio))
2352 return (SSL_ERROR_WANT_WRITE);
2353 else if (BIO_should_read(bio))
2355 * See above (SSL_want_read(s) with BIO_should_write(bio))
2357 return (SSL_ERROR_WANT_READ);
2358 else if (BIO_should_io_special(bio)) {
2359 reason = BIO_get_retry_reason(bio);
2360 if (reason == BIO_RR_CONNECT)
2361 return (SSL_ERROR_WANT_CONNECT);
2362 else if (reason == BIO_RR_ACCEPT)
2363 return (SSL_ERROR_WANT_ACCEPT);
2365 return (SSL_ERROR_SYSCALL);
2368 if ((i < 0) && SSL_want_x509_lookup(s)) {
2369 return (SSL_ERROR_WANT_X509_LOOKUP);
2373 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2374 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2375 return (SSL_ERROR_ZERO_RETURN);
2377 return (SSL_ERROR_SYSCALL);
2380 int SSL_do_handshake(SSL *s)
2384 if (s->handshake_func == NULL) {
2385 SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET);
2389 s->method->ssl_renegotiate_check(s);
2391 if (SSL_in_init(s) || SSL_in_before(s)) {
2392 ret = s->handshake_func(s);
2397 void SSL_set_accept_state(SSL *s)
2402 s->handshake_func = s->method->ssl_accept;
2406 void SSL_set_connect_state(SSL *s)
2411 s->handshake_func = s->method->ssl_connect;
2415 int ssl_undefined_function(SSL *s)
2417 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2421 int ssl_undefined_void_function(void)
2423 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,
2424 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2428 int ssl_undefined_const_function(const SSL *s)
2430 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,
2431 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2435 SSL_METHOD *ssl_bad_method(int ver)
2437 SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2441 const char *SSL_get_version(const SSL *s)
2443 if (s->version == TLS1_2_VERSION)
2445 else if (s->version == TLS1_1_VERSION)
2447 else if (s->version == TLS1_VERSION)
2449 else if (s->version == SSL3_VERSION)
2451 else if (s->version == DTLS1_BAD_VER)
2452 return ("DTLSv0.9");
2453 else if (s->version == DTLS1_VERSION)
2455 else if (s->version == DTLS1_2_VERSION)
2456 return ("DTLSv1.2");
2461 SSL *SSL_dup(SSL *s)
2463 STACK_OF(X509_NAME) *sk;
2468 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2471 ret->version = s->version;
2472 ret->type = s->type;
2473 ret->method = s->method;
2475 if (s->session != NULL) {
2476 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2477 if (!SSL_copy_session_id(ret, s))
2481 * No session has been established yet, so we have to expect that
2482 * s->cert or ret->cert will be changed later -- they should not both
2483 * point to the same object, and thus we can't use
2484 * SSL_copy_session_id.
2487 ret->method->ssl_free(ret);
2488 ret->method = s->method;
2489 ret->method->ssl_new(ret);
2491 if (s->cert != NULL) {
2492 ssl_cert_free(ret->cert);
2493 ret->cert = ssl_cert_dup(s->cert);
2494 if (ret->cert == NULL)
2498 if (!SSL_set_session_id_context(ret, s->sid_ctx, s->sid_ctx_length))
2502 ret->options = s->options;
2503 ret->mode = s->mode;
2504 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
2505 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
2506 ret->msg_callback = s->msg_callback;
2507 ret->msg_callback_arg = s->msg_callback_arg;
2508 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
2509 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
2510 ret->generate_session_id = s->generate_session_id;
2512 SSL_set_info_callback(ret, SSL_get_info_callback(s));
2514 ret->debug = s->debug;
2516 /* copy app data, a little dangerous perhaps */
2517 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2520 /* setup rbio, and wbio */
2521 if (s->rbio != NULL) {
2522 if (!BIO_dup_state(s->rbio, (char *)&ret->rbio))
2525 if (s->wbio != NULL) {
2526 if (s->wbio != s->rbio) {
2527 if (!BIO_dup_state(s->wbio, (char *)&ret->wbio))
2530 ret->wbio = ret->rbio;
2532 ret->rwstate = s->rwstate;
2533 ret->in_handshake = s->in_handshake;
2534 ret->handshake_func = s->handshake_func;
2535 ret->server = s->server;
2536 ret->renegotiate = s->renegotiate;
2537 ret->new_session = s->new_session;
2538 ret->quiet_shutdown = s->quiet_shutdown;
2539 ret->shutdown = s->shutdown;
2540 ret->statem = s->statem; /* SSL_dup does not really work at any state,
2542 RECORD_LAYER_dup(&ret->rlayer, &s->rlayer);
2543 ret->init_num = 0; /* would have to copy ret->init_buf,
2544 * ret->init_msg, ret->init_num,
2548 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2550 /* dup the cipher_list and cipher_list_by_id stacks */
2551 if (s->cipher_list != NULL) {
2552 if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2555 if (s->cipher_list_by_id != NULL)
2556 if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2560 /* Dup the client_CA list */
2561 if (s->client_CA != NULL) {
2562 if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL)
2564 ret->client_CA = sk;
2565 for (i = 0; i < sk_X509_NAME_num(sk); i++) {
2566 xn = sk_X509_NAME_value(sk, i);
2567 if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) {
2580 void ssl_clear_cipher_ctx(SSL *s)
2582 if (s->enc_read_ctx != NULL) {
2583 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2584 OPENSSL_free(s->enc_read_ctx);
2585 s->enc_read_ctx = NULL;
2587 if (s->enc_write_ctx != NULL) {
2588 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2589 OPENSSL_free(s->enc_write_ctx);
2590 s->enc_write_ctx = NULL;
2592 #ifndef OPENSSL_NO_COMP
2593 COMP_CTX_free(s->expand);
2595 COMP_CTX_free(s->compress);
2600 X509 *SSL_get_certificate(const SSL *s)
2602 if (s->cert != NULL)
2603 return (s->cert->key->x509);
2608 EVP_PKEY *SSL_get_privatekey(const SSL *s)
2610 if (s->cert != NULL)
2611 return (s->cert->key->privatekey);
2616 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
2618 if (ctx->cert != NULL)
2619 return ctx->cert->key->x509;
2624 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
2626 if (ctx->cert != NULL)
2627 return ctx->cert->key->privatekey;
2632 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2634 if ((s->session != NULL) && (s->session->cipher != NULL))
2635 return (s->session->cipher);
2639 const COMP_METHOD *SSL_get_current_compression(SSL *s)
2641 #ifndef OPENSSL_NO_COMP
2642 return s->compress ? COMP_CTX_get_method(s->compress) : NULL;
2648 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2650 #ifndef OPENSSL_NO_COMP
2651 return s->expand ? COMP_CTX_get_method(s->expand) : NULL;
2657 int ssl_init_wbio_buffer(SSL *s, int push)
2661 if (s->bbio == NULL) {
2662 bbio = BIO_new(BIO_f_buffer());
2668 if (s->bbio == s->wbio)
2669 s->wbio = BIO_pop(s->wbio);
2671 (void)BIO_reset(bbio);
2672 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2673 if (!BIO_set_read_buffer_size(bbio, 1)) {
2674 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB);
2678 if (s->wbio != bbio)
2679 s->wbio = BIO_push(bbio, s->wbio);
2681 if (s->wbio == bbio)
2682 s->wbio = BIO_pop(bbio);
2687 void ssl_free_wbio_buffer(SSL *s)
2689 /* callers ensure s is never null */
2690 if (s->bbio == NULL)
2693 if (s->bbio == s->wbio) {
2694 /* remove buffering */
2695 s->wbio = BIO_pop(s->wbio);
2696 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids
2697 * adding one more preprocessor symbol */
2698 assert(s->wbio != NULL);
2705 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
2707 ctx->quiet_shutdown = mode;
2710 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2712 return (ctx->quiet_shutdown);
2715 void SSL_set_quiet_shutdown(SSL *s, int mode)
2717 s->quiet_shutdown = mode;
2720 int SSL_get_quiet_shutdown(const SSL *s)
2722 return (s->quiet_shutdown);
2725 void SSL_set_shutdown(SSL *s, int mode)
2730 int SSL_get_shutdown(const SSL *s)
2732 return (s->shutdown);
2735 int SSL_version(const SSL *s)
2737 return (s->version);
2740 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2745 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
2748 if (ssl->ctx == ctx)
2751 ctx = ssl->initial_ctx;
2752 new_cert = ssl_cert_dup(ctx->cert);
2753 if (new_cert == NULL) {
2756 ssl_cert_free(ssl->cert);
2757 ssl->cert = new_cert;
2760 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
2761 * so setter APIs must prevent invalid lengths from entering the system.
2763 OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx));
2766 * If the session ID context matches that of the parent SSL_CTX,
2767 * inherit it from the new SSL_CTX as well. If however the context does
2768 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
2769 * leave it unchanged.
2771 if ((ssl->ctx != NULL) &&
2772 (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
2773 (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) {
2774 ssl->sid_ctx_length = ctx->sid_ctx_length;
2775 memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx));
2778 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
2779 SSL_CTX_free(ssl->ctx); /* decrement reference count */
2785 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2787 return (X509_STORE_set_default_paths(ctx->cert_store));
2790 int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
2792 X509_LOOKUP *lookup;
2794 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
2797 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
2799 /* Clear any errors if the default directory does not exist */
2805 int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
2807 X509_LOOKUP *lookup;
2809 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
2813 X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
2815 /* Clear any errors if the default file does not exist */
2821 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2824 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath));
2827 void SSL_set_info_callback(SSL *ssl,
2828 void (*cb) (const SSL *ssl, int type, int val))
2830 ssl->info_callback = cb;
2834 * One compiler (Diab DCC) doesn't like argument names in returned function
2837 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
2840 return ssl->info_callback;
2843 void SSL_set_verify_result(SSL *ssl, long arg)
2845 ssl->verify_result = arg;
2848 long SSL_get_verify_result(const SSL *ssl)
2850 return (ssl->verify_result);
2853 size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
2856 return sizeof(ssl->s3->client_random);
2857 if (outlen > sizeof(ssl->s3->client_random))
2858 outlen = sizeof(ssl->s3->client_random);
2859 memcpy(out, ssl->s3->client_random, outlen);
2863 size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
2866 return sizeof(ssl->s3->server_random);
2867 if (outlen > sizeof(ssl->s3->server_random))
2868 outlen = sizeof(ssl->s3->server_random);
2869 memcpy(out, ssl->s3->server_random, outlen);
2873 size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
2874 unsigned char *out, size_t outlen)
2876 if (session->master_key_length < 0) {
2877 /* Should never happen */
2881 return session->master_key_length;
2882 if (outlen > (size_t)session->master_key_length)
2883 outlen = session->master_key_length;
2884 memcpy(out, session->master_key, outlen);
2888 int SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
2889 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
2891 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2892 new_func, dup_func, free_func);
2895 int SSL_set_ex_data(SSL *s, int idx, void *arg)
2897 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
2900 void *SSL_get_ex_data(const SSL *s, int idx)
2902 return (CRYPTO_get_ex_data(&s->ex_data, idx));
2905 int SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
2906 CRYPTO_EX_dup *dup_func,
2907 CRYPTO_EX_free *free_func)
2909 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2910 new_func, dup_func, free_func);
2913 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
2915 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
2918 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
2920 return (CRYPTO_get_ex_data(&s->ex_data, idx));
2928 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
2930 return (ctx->cert_store);
2933 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
2935 X509_STORE_free(ctx->cert_store);
2936 ctx->cert_store = store;
2939 int SSL_want(const SSL *s)
2941 return (s->rwstate);
2945 * \brief Set the callback for generating temporary RSA keys.
2946 * \param ctx the SSL context.
2947 * \param cb the callback
2950 #ifndef OPENSSL_NO_RSA
2951 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb) (SSL *ssl,
2955 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb);
2958 void SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb) (SSL *ssl,
2962 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb);
2968 * \brief The RSA temporary key callback function.
2969 * \param ssl the SSL session.
2970 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2971 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2972 * of the required key in bits.
2973 * \return the temporary RSA key.
2974 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2977 RSA *cb(SSL *ssl, int is_export, int keylength)
2983 * \brief Set the callback for generating temporary DH keys.
2984 * \param ctx the SSL context.
2985 * \param dh the callback
2988 #ifndef OPENSSL_NO_DH
2989 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
2990 DH *(*dh) (SSL *ssl, int is_export,
2993 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
2996 void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export,
2999 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3003 #ifndef OPENSSL_NO_EC
3004 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,
3005 EC_KEY *(*ecdh) (SSL *ssl, int is_export,
3008 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB,
3009 (void (*)(void))ecdh);
3012 void SSL_set_tmp_ecdh_callback(SSL *ssl,
3013 EC_KEY *(*ecdh) (SSL *ssl, int is_export,
3016 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB, (void (*)(void))ecdh);
3020 #ifndef OPENSSL_NO_PSK
3021 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3023 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3024 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT,
3025 SSL_R_DATA_LENGTH_TOO_LONG);
3028 OPENSSL_free(ctx->cert->psk_identity_hint);
3029 if (identity_hint != NULL) {
3030 ctx->cert->psk_identity_hint = BUF_strdup(identity_hint);
3031 if (ctx->cert->psk_identity_hint == NULL)
3034 ctx->cert->psk_identity_hint = NULL;
3038 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3043 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3044 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3047 OPENSSL_free(s->cert->psk_identity_hint);
3048 if (identity_hint != NULL) {
3049 s->cert->psk_identity_hint = BUF_strdup(identity_hint);
3050 if (s->cert->psk_identity_hint == NULL)
3053 s->cert->psk_identity_hint = NULL;
3057 const char *SSL_get_psk_identity_hint(const SSL *s)
3059 if (s == NULL || s->session == NULL)
3061 return (s->session->psk_identity_hint);
3064 const char *SSL_get_psk_identity(const SSL *s)
3066 if (s == NULL || s->session == NULL)
3068 return (s->session->psk_identity);
3071 void SSL_set_psk_client_callback(SSL *s,
3072 unsigned int (*cb) (SSL *ssl,
3081 s->psk_client_callback = cb;
3084 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3085 unsigned int (*cb) (SSL *ssl,
3094 ctx->psk_client_callback = cb;
3097 void SSL_set_psk_server_callback(SSL *s,
3098 unsigned int (*cb) (SSL *ssl,
3099 const char *identity,
3104 s->psk_server_callback = cb;
3107 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3108 unsigned int (*cb) (SSL *ssl,
3109 const char *identity,
3114 ctx->psk_server_callback = cb;
3118 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
3119 void (*cb) (int write_p, int version,
3120 int content_type, const void *buf,
3121 size_t len, SSL *ssl, void *arg))
3123 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3126 void SSL_set_msg_callback(SSL *ssl,
3127 void (*cb) (int write_p, int version,
3128 int content_type, const void *buf,
3129 size_t len, SSL *ssl, void *arg))
3131 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3134 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
3135 int (*cb) (SSL *ssl,
3139 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3140 (void (*)(void))cb);
3143 void SSL_set_not_resumable_session_callback(SSL *ssl,
3144 int (*cb) (SSL *ssl,
3145 int is_forward_secure))
3147 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3148 (void (*)(void))cb);
3152 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3153 * vairable, freeing EVP_MD_CTX previously stored in that variable, if any.
3154 * If EVP_MD pointer is passed, initializes ctx with this md Returns newly
3158 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
3160 ssl_clear_hash_ctx(hash);
3161 *hash = EVP_MD_CTX_create();
3163 EVP_DigestInit_ex(*hash, md, NULL);
3167 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3171 EVP_MD_CTX_destroy(*hash);
3175 /* Retrieve handshake hashes */
3176 int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen)
3178 unsigned char *p = out;
3183 EVP_MD_CTX_init(&ctx);
3184 for (idx = 0; ssl_get_handshake_digest(idx, &mask, &md); idx++) {
3185 if (mask & ssl_get_algorithm2(s)) {
3186 int hashsize = EVP_MD_size(md);
3187 EVP_MD_CTX *hdgst = s->s3->handshake_dgst[idx];
3188 if (!hdgst || hashsize < 0 || hashsize > outlen)
3190 if (!EVP_MD_CTX_copy_ex(&ctx, hdgst))
3192 if (!EVP_DigestFinal_ex(&ctx, p, NULL))
3200 EVP_MD_CTX_cleanup(&ctx);
3204 void SSL_set_debug(SSL *s, int debug)
3209 int SSL_cache_hit(SSL *s)
3214 int SSL_is_server(SSL *s)
3219 void SSL_set_security_level(SSL *s, int level)
3221 s->cert->sec_level = level;
3224 int SSL_get_security_level(const SSL *s)
3226 return s->cert->sec_level;
3229 void SSL_set_security_callback(SSL *s,
3230 int (*cb) (SSL *s, SSL_CTX *ctx, int op,
3231 int bits, int nid, void *other,
3234 s->cert->sec_cb = cb;
3237 int (*SSL_get_security_callback(const SSL *s)) (SSL *s, SSL_CTX *ctx, int op,
3239 void *other, void *ex) {
3240 return s->cert->sec_cb;
3243 void SSL_set0_security_ex_data(SSL *s, void *ex)
3245 s->cert->sec_ex = ex;
3248 void *SSL_get0_security_ex_data(const SSL *s)
3250 return s->cert->sec_ex;
3253 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
3255 ctx->cert->sec_level = level;
3258 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
3260 return ctx->cert->sec_level;
3263 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
3264 int (*cb) (SSL *s, SSL_CTX *ctx, int op,
3265 int bits, int nid, void *other,
3268 ctx->cert->sec_cb = cb;
3271 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (SSL *s,
3277 return ctx->cert->sec_cb;
3280 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
3282 ctx->cert->sec_ex = ex;
3285 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
3287 return ctx->cert->sec_ex;
3290 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);