2 * ! \file ssl/ssl_lib.c \brief Version independent SSL functions.
4 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
7 * This package is an SSL implementation written
8 * by Eric Young (eay@cryptsoft.com).
9 * The implementation was written so as to conform with Netscapes SSL.
11 * This library is free for commercial and non-commercial use as long as
12 * the following conditions are aheared to. The following conditions
13 * apply to all code found in this distribution, be it the RC4, RSA,
14 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
15 * included with this distribution is covered by the same copyright terms
16 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
18 * Copyright remains Eric Young's, and as such any Copyright notices in
19 * the code are not to be removed.
20 * If this package is used in a product, Eric Young should be given attribution
21 * as the author of the parts of the library used.
22 * This can be in the form of a textual message at program startup or
23 * in documentation (online or textual) provided with the package.
25 * Redistribution and use in source and binary forms, with or without
26 * modification, are permitted provided that the following conditions
28 * 1. Redistributions of source code must retain the copyright
29 * notice, this list of conditions and the following disclaimer.
30 * 2. Redistributions in binary form must reproduce the above copyright
31 * notice, this list of conditions and the following disclaimer in the
32 * documentation and/or other materials provided with the distribution.
33 * 3. All advertising materials mentioning features or use of this software
34 * must display the following acknowledgement:
35 * "This product includes cryptographic software written by
36 * Eric Young (eay@cryptsoft.com)"
37 * The word 'cryptographic' can be left out if the rouines from the library
38 * being used are not cryptographic related :-).
39 * 4. If you include any Windows specific code (or a derivative thereof) from
40 * the apps directory (application code) you must include an acknowledgement:
41 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
43 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55 * The licence and distribution terms for any publically available version or
56 * derivative of this code cannot be changed. i.e. this code cannot simply be
57 * copied and put under another distribution licence
58 * [including the GNU Public Licence.]
60 /* ====================================================================
61 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
63 * Redistribution and use in source and binary forms, with or without
64 * modification, are permitted provided that the following conditions
67 * 1. Redistributions of source code must retain the above copyright
68 * notice, this list of conditions and the following disclaimer.
70 * 2. Redistributions in binary form must reproduce the above copyright
71 * notice, this list of conditions and the following disclaimer in
72 * the documentation and/or other materials provided with the
75 * 3. All advertising materials mentioning features or use of this
76 * software must display the following acknowledgment:
77 * "This product includes software developed by the OpenSSL Project
78 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
80 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
81 * endorse or promote products derived from this software without
82 * prior written permission. For written permission, please contact
83 * openssl-core@openssl.org.
85 * 5. Products derived from this software may not be called "OpenSSL"
86 * nor may "OpenSSL" appear in their names without prior written
87 * permission of the OpenSSL Project.
89 * 6. Redistributions of any form whatsoever must retain the following
91 * "This product includes software developed by the OpenSSL Project
92 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
94 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
95 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
96 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
97 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
98 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
99 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
100 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
101 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
102 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
103 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
104 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
105 * OF THE POSSIBILITY OF SUCH DAMAGE.
106 * ====================================================================
108 * This product includes cryptographic software written by Eric Young
109 * (eay@cryptsoft.com). This product includes software written by Tim
110 * Hudson (tjh@cryptsoft.com).
113 /* ====================================================================
114 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
115 * ECC cipher suite support in OpenSSL originally developed by
116 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
118 /* ====================================================================
119 * Copyright 2005 Nokia. All rights reserved.
121 * The portions of the attached software ("Contribution") is developed by
122 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
125 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
126 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
127 * support (see RFC 4279) to OpenSSL.
129 * No patent licenses or other rights except those expressly stated in
130 * the OpenSSL open source license shall be deemed granted or received
131 * expressly, by implication, estoppel, or otherwise.
133 * No assurances are provided by Nokia that the Contribution does not
134 * infringe the patent or other intellectual property rights of any third
135 * party or that the license provides you with all the necessary rights
136 * to make use of the Contribution.
138 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
139 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
140 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
141 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
149 #include "ssl_locl.h"
150 #include <openssl/objects.h>
151 #include <openssl/lhash.h>
152 #include <openssl/x509v3.h>
153 #include <openssl/rand.h>
154 #include <openssl/ocsp.h>
155 #ifndef OPENSSL_NO_DH
156 # include <openssl/dh.h>
158 #ifndef OPENSSL_NO_ENGINE
159 # include <openssl/engine.h>
162 const char SSL_version_str[] = OPENSSL_VERSION_TEXT;
164 SSL3_ENC_METHOD ssl3_undef_enc_method = {
166 * evil casts, but these functions are only called if there's a library
169 (int (*)(SSL *, int))ssl_undefined_function,
170 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
171 ssl_undefined_function,
172 (int (*)(SSL *, unsigned char *, unsigned char *, int))
173 ssl_undefined_function,
174 (int (*)(SSL *, int))ssl_undefined_function,
175 (int (*)(SSL *, const char *, int, unsigned char *))
176 ssl_undefined_function,
177 0, /* finish_mac_length */
178 (int (*)(SSL *, int, unsigned char *))ssl_undefined_function,
179 NULL, /* client_finished_label */
180 0, /* client_finished_label_len */
181 NULL, /* server_finished_label */
182 0, /* server_finished_label_len */
183 (int (*)(int))ssl_undefined_function,
184 (int (*)(SSL *, unsigned char *, size_t, const char *,
185 size_t, const unsigned char *, size_t,
186 int use_context))ssl_undefined_function,
189 static void clear_ciphers(SSL *s)
191 /* clear the current cipher */
192 ssl_clear_cipher_ctx(s);
193 ssl_clear_hash_ctx(&s->read_hash);
194 ssl_clear_hash_ctx(&s->write_hash);
197 int SSL_clear(SSL *s)
199 if (s->method == NULL) {
200 SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED);
204 if (ssl_clear_bad_session(s)) {
205 SSL_SESSION_free(s->session);
213 if (s->renegotiate) {
214 SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR);
220 s->state = SSL_ST_BEFORE | ((s->server) ? SSL_ST_ACCEPT : SSL_ST_CONNECT);
222 s->version = s->method->version;
223 s->client_version = s->version;
224 s->rwstate = SSL_NOTHING;
226 BUF_MEM_free(s->init_buf);
232 * Check to see if we were changed into a different method, if so, revert
233 * back if we are not doing session-id reuse.
235 if (!s->in_handshake && (s->session == NULL)
236 && (s->method != s->ctx->method)) {
237 s->method->ssl_free(s);
238 s->method = s->ctx->method;
239 if (!s->method->ssl_new(s))
242 s->method->ssl_clear(s);
244 RECORD_LAYER_clear(&s->rlayer);
249 /** Used to change an SSL_CTXs default SSL method type */
250 int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
252 STACK_OF(SSL_CIPHER) *sk;
256 sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list),
257 &(ctx->cipher_list_by_id),
258 SSL_DEFAULT_CIPHER_LIST, ctx->cert);
259 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
260 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,
261 SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
267 SSL *SSL_new(SSL_CTX *ctx)
272 SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);
275 if (ctx->method == NULL) {
276 SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
280 s = OPENSSL_zalloc(sizeof(*s));
284 RECORD_LAYER_init(&s->rlayer, s);
286 s->options = ctx->options;
288 s->max_cert_list = ctx->max_cert_list;
292 * Earlier library versions used to copy the pointer to the CERT, not
293 * its contents; only when setting new parameters for the per-SSL
294 * copy, ssl_cert_new would be called (and the direct reference to
295 * the per-SSL_CTX settings would be lost, but those still were
296 * indirectly accessed for various purposes, and for that reason they
297 * used to be known as s->ctx->default_cert). Now we don't look at the
298 * SSL_CTX's CERT after having duplicated it once.
300 s->cert = ssl_cert_dup(ctx->cert);
304 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
305 s->msg_callback = ctx->msg_callback;
306 s->msg_callback_arg = ctx->msg_callback_arg;
307 s->verify_mode = ctx->verify_mode;
308 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
309 s->sid_ctx_length = ctx->sid_ctx_length;
310 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
311 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
312 s->verify_callback = ctx->default_verify_callback;
313 s->generate_session_id = ctx->generate_session_id;
315 s->param = X509_VERIFY_PARAM_new();
318 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
319 s->quiet_shutdown = ctx->quiet_shutdown;
320 s->max_send_fragment = ctx->max_send_fragment;
322 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
324 s->tlsext_debug_cb = 0;
325 s->tlsext_debug_arg = NULL;
326 s->tlsext_ticket_expected = 0;
327 s->tlsext_status_type = -1;
328 s->tlsext_status_expected = 0;
329 s->tlsext_ocsp_ids = NULL;
330 s->tlsext_ocsp_exts = NULL;
331 s->tlsext_ocsp_resp = NULL;
332 s->tlsext_ocsp_resplen = -1;
333 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
334 s->initial_ctx = ctx;
335 # ifndef OPENSSL_NO_EC
336 if (ctx->tlsext_ecpointformatlist) {
337 s->tlsext_ecpointformatlist =
338 BUF_memdup(ctx->tlsext_ecpointformatlist,
339 ctx->tlsext_ecpointformatlist_length);
340 if (!s->tlsext_ecpointformatlist)
342 s->tlsext_ecpointformatlist_length =
343 ctx->tlsext_ecpointformatlist_length;
345 if (ctx->tlsext_ellipticcurvelist) {
346 s->tlsext_ellipticcurvelist =
347 BUF_memdup(ctx->tlsext_ellipticcurvelist,
348 ctx->tlsext_ellipticcurvelist_length);
349 if (!s->tlsext_ellipticcurvelist)
351 s->tlsext_ellipticcurvelist_length =
352 ctx->tlsext_ellipticcurvelist_length;
355 # ifndef OPENSSL_NO_NEXTPROTONEG
356 s->next_proto_negotiated = NULL;
359 if (s->ctx->alpn_client_proto_list) {
360 s->alpn_client_proto_list =
361 OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);
362 if (s->alpn_client_proto_list == NULL)
364 memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,
365 s->ctx->alpn_client_proto_list_len);
366 s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;
369 s->verify_result = X509_V_OK;
371 s->method = ctx->method;
373 if (!s->method->ssl_new(s))
376 s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;
381 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
383 #ifndef OPENSSL_NO_PSK
384 s->psk_client_callback = ctx->psk_client_callback;
385 s->psk_server_callback = ctx->psk_server_callback;
391 SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
395 int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
396 unsigned int sid_ctx_len)
398 if (sid_ctx_len > sizeof ctx->sid_ctx) {
399 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,
400 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
403 ctx->sid_ctx_length = sid_ctx_len;
404 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
409 int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
410 unsigned int sid_ctx_len)
412 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
413 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,
414 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
417 ssl->sid_ctx_length = sid_ctx_len;
418 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len);
423 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
425 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
426 ctx->generate_session_id = cb;
427 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
431 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
433 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
434 ssl->generate_session_id = cb;
435 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
439 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
443 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
444 * we can "construct" a session to give us the desired check - ie. to
445 * find if there's a session in the hash table that would conflict with
446 * any new session built out of this id/id_len and the ssl_version in use
451 if (id_len > sizeof r.session_id)
454 r.ssl_version = ssl->version;
455 r.session_id_length = id_len;
456 memcpy(r.session_id, id, id_len);
458 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
459 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
460 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
464 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
466 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
469 int SSL_set_purpose(SSL *s, int purpose)
471 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
474 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
476 return X509_VERIFY_PARAM_set_trust(s->param, trust);
479 int SSL_set_trust(SSL *s, int trust)
481 return X509_VERIFY_PARAM_set_trust(s->param, trust);
484 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
486 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
489 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
491 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
494 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
499 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
504 void SSL_certs_clear(SSL *s)
506 ssl_cert_clear_certs(s->cert);
509 void SSL_free(SSL *s)
516 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL);
524 fprintf(stderr, "SSL_free, bad reference count\n");
529 X509_VERIFY_PARAM_free(s->param);
530 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
532 if (s->bbio != NULL) {
533 /* If the buffering BIO is in place, pop it off */
534 if (s->bbio == s->wbio) {
535 s->wbio = BIO_pop(s->wbio);
540 BIO_free_all(s->rbio);
541 if (s->wbio != s->rbio)
542 BIO_free_all(s->wbio);
544 BUF_MEM_free(s->init_buf);
546 /* add extra stuff */
547 sk_SSL_CIPHER_free(s->cipher_list);
548 sk_SSL_CIPHER_free(s->cipher_list_by_id);
550 /* Make the next call work :-) */
551 if (s->session != NULL) {
552 ssl_clear_bad_session(s);
553 SSL_SESSION_free(s->session);
558 ssl_cert_free(s->cert);
559 /* Free up if allocated */
561 OPENSSL_free(s->tlsext_hostname);
562 SSL_CTX_free(s->initial_ctx);
563 #ifndef OPENSSL_NO_EC
564 OPENSSL_free(s->tlsext_ecpointformatlist);
565 OPENSSL_free(s->tlsext_ellipticcurvelist);
566 #endif /* OPENSSL_NO_EC */
567 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free);
568 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
569 OPENSSL_free(s->tlsext_ocsp_resp);
570 OPENSSL_free(s->alpn_client_proto_list);
572 sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free);
574 if (s->method != NULL)
575 s->method->ssl_free(s);
577 RECORD_LAYER_release(&s->rlayer);
579 SSL_CTX_free(s->ctx);
581 #if !defined(OPENSSL_NO_NEXTPROTONEG)
582 OPENSSL_free(s->next_proto_negotiated);
585 #ifndef OPENSSL_NO_SRTP
586 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
592 void SSL_set_rbio(SSL *s, BIO *rbio)
595 BIO_free_all(s->rbio);
599 void SSL_set_wbio(SSL *s, BIO *wbio)
602 * If the output buffering BIO is still in place, remove it
604 if (s->bbio != NULL) {
605 if (s->wbio == s->bbio) {
606 s->wbio = s->wbio->next_bio;
607 s->bbio->next_bio = NULL;
610 if (s->wbio != wbio && s->rbio != s->wbio)
611 BIO_free_all(s->wbio);
615 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
617 SSL_set_wbio(s, wbio);
618 SSL_set_rbio(s, rbio);
621 BIO *SSL_get_rbio(const SSL *s)
626 BIO *SSL_get_wbio(const SSL *s)
631 int SSL_get_fd(const SSL *s)
633 return (SSL_get_rfd(s));
636 int SSL_get_rfd(const SSL *s)
642 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
648 int SSL_get_wfd(const SSL *s)
654 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
660 #ifndef OPENSSL_NO_SOCK
661 int SSL_set_fd(SSL *s, int fd)
666 bio = BIO_new(BIO_s_socket());
669 SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB);
672 BIO_set_fd(bio, fd, BIO_NOCLOSE);
673 SSL_set_bio(s, bio, bio);
679 int SSL_set_wfd(SSL *s, int fd)
684 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
685 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) {
686 bio = BIO_new(BIO_s_socket());
689 SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB);
692 BIO_set_fd(bio, fd, BIO_NOCLOSE);
693 SSL_set_bio(s, SSL_get_rbio(s), bio);
695 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s));
701 int SSL_set_rfd(SSL *s, int fd)
706 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
707 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) {
708 bio = BIO_new(BIO_s_socket());
711 SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB);
714 BIO_set_fd(bio, fd, BIO_NOCLOSE);
715 SSL_set_bio(s, bio, SSL_get_wbio(s));
717 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s));
724 /* return length of latest Finished message we sent, copy to 'buf' */
725 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
730 ret = s->s3->tmp.finish_md_len;
733 memcpy(buf, s->s3->tmp.finish_md, count);
738 /* return length of latest Finished message we expected, copy to 'buf' */
739 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
744 ret = s->s3->tmp.peer_finish_md_len;
747 memcpy(buf, s->s3->tmp.peer_finish_md, count);
752 int SSL_get_verify_mode(const SSL *s)
754 return (s->verify_mode);
757 int SSL_get_verify_depth(const SSL *s)
759 return X509_VERIFY_PARAM_get_depth(s->param);
762 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
763 return (s->verify_callback);
766 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
768 return (ctx->verify_mode);
771 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
773 return X509_VERIFY_PARAM_get_depth(ctx->param);
776 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
777 return (ctx->default_verify_callback);
780 void SSL_set_verify(SSL *s, int mode,
781 int (*callback) (int ok, X509_STORE_CTX *ctx))
783 s->verify_mode = mode;
784 if (callback != NULL)
785 s->verify_callback = callback;
788 void SSL_set_verify_depth(SSL *s, int depth)
790 X509_VERIFY_PARAM_set_depth(s->param, depth);
793 void SSL_set_read_ahead(SSL *s, int yes)
795 RECORD_LAYER_set_read_ahead(&s->rlayer, yes);
798 int SSL_get_read_ahead(const SSL *s)
800 return RECORD_LAYER_get_read_ahead(&s->rlayer);
803 int SSL_pending(const SSL *s)
806 * SSL_pending cannot work properly if read-ahead is enabled
807 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
808 * impossible to fix since SSL_pending cannot report errors that may be
809 * observed while scanning the new data. (Note that SSL_pending() is
810 * often used as a boolean value, so we'd better not return -1.)
812 return (s->method->ssl_pending(s));
815 X509 *SSL_get_peer_certificate(const SSL *s)
819 if ((s == NULL) || (s->session == NULL))
822 r = s->session->peer;
832 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
836 if ((s == NULL) || (s->session == NULL))
839 r = s->session->peer_chain;
842 * If we are a client, cert_chain includes the peer's own certificate; if
843 * we are a server, it does not.
850 * Now in theory, since the calling process own 't' it should be safe to
851 * modify. We need to be able to read f without being hassled
853 int SSL_copy_session_id(SSL *t, const SSL *f)
855 /* Do we need to to SSL locking? */
856 if (!SSL_set_session(t, SSL_get_session(f))) {
861 * what if we are setup as SSLv2 but want to talk SSLv3 or vice-versa
863 if (t->method != f->method) {
864 t->method->ssl_free(t); /* cleanup current */
865 t->method = f->method; /* change method */
866 t->method->ssl_new(t); /* setup new */
869 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT);
870 ssl_cert_free(t->cert);
872 if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) {
879 /* Fix this so it checks all the valid key/cert options */
880 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
883 (ctx->cert->key->x509 == NULL)) {
884 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
885 SSL_R_NO_CERTIFICATE_ASSIGNED);
888 if (ctx->cert->key->privatekey == NULL) {
889 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
890 SSL_R_NO_PRIVATE_KEY_ASSIGNED);
893 return (X509_check_private_key
894 (ctx->cert->key->x509, ctx->cert->key->privatekey));
897 /* Fix this function so that it takes an optional type parameter */
898 int SSL_check_private_key(const SSL *ssl)
901 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
904 if (ssl->cert->key->x509 == NULL) {
905 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
908 if (ssl->cert->key->privatekey == NULL) {
909 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
912 return (X509_check_private_key(ssl->cert->key->x509,
913 ssl->cert->key->privatekey));
916 int SSL_accept(SSL *s)
918 if (s->handshake_func == 0)
919 /* Not properly initialized yet */
920 SSL_set_accept_state(s);
922 return (s->method->ssl_accept(s));
925 int SSL_connect(SSL *s)
927 if (s->handshake_func == 0)
928 /* Not properly initialized yet */
929 SSL_set_connect_state(s);
931 return (s->method->ssl_connect(s));
934 long SSL_get_default_timeout(const SSL *s)
936 return (s->method->get_timeout());
939 int SSL_read(SSL *s, void *buf, int num)
941 if (s->handshake_func == 0) {
942 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
946 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
947 s->rwstate = SSL_NOTHING;
950 return (s->method->ssl_read(s, buf, num));
953 int SSL_peek(SSL *s, void *buf, int num)
955 if (s->handshake_func == 0) {
956 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
960 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
963 return (s->method->ssl_peek(s, buf, num));
966 int SSL_write(SSL *s, const void *buf, int num)
968 if (s->handshake_func == 0) {
969 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
973 if (s->shutdown & SSL_SENT_SHUTDOWN) {
974 s->rwstate = SSL_NOTHING;
975 SSLerr(SSL_F_SSL_WRITE, SSL_R_PROTOCOL_IS_SHUTDOWN);
978 return (s->method->ssl_write(s, buf, num));
981 int SSL_shutdown(SSL *s)
984 * Note that this function behaves differently from what one might
985 * expect. Return values are 0 for no success (yet), 1 for success; but
986 * calling it once is usually not enough, even if blocking I/O is used
987 * (see ssl3_shutdown).
990 if (s->handshake_func == 0) {
991 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
995 if ((s != NULL) && !SSL_in_init(s))
996 return (s->method->ssl_shutdown(s));
1001 int SSL_renegotiate(SSL *s)
1003 if (s->renegotiate == 0)
1008 return (s->method->ssl_renegotiate(s));
1011 int SSL_renegotiate_abbreviated(SSL *s)
1013 if (s->renegotiate == 0)
1018 return (s->method->ssl_renegotiate(s));
1021 int SSL_renegotiate_pending(SSL *s)
1024 * becomes true when negotiation is requested; false again once a
1025 * handshake has finished
1027 return (s->renegotiate != 0);
1030 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
1035 case SSL_CTRL_GET_READ_AHEAD:
1036 return (RECORD_LAYER_get_read_ahead(&s->rlayer));
1037 case SSL_CTRL_SET_READ_AHEAD:
1038 l = RECORD_LAYER_get_read_ahead(&s->rlayer);
1039 RECORD_LAYER_set_read_ahead(&s->rlayer, larg);
1042 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1043 s->msg_callback_arg = parg;
1046 case SSL_CTRL_OPTIONS:
1047 return (s->options |= larg);
1048 case SSL_CTRL_CLEAR_OPTIONS:
1049 return (s->options &= ~larg);
1051 return (s->mode |= larg);
1052 case SSL_CTRL_CLEAR_MODE:
1053 return (s->mode &= ~larg);
1054 case SSL_CTRL_GET_MAX_CERT_LIST:
1055 return (s->max_cert_list);
1056 case SSL_CTRL_SET_MAX_CERT_LIST:
1057 l = s->max_cert_list;
1058 s->max_cert_list = larg;
1060 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1061 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1063 s->max_send_fragment = larg;
1065 case SSL_CTRL_GET_RI_SUPPORT:
1067 return s->s3->send_connection_binding;
1070 case SSL_CTRL_CERT_FLAGS:
1071 return (s->cert->cert_flags |= larg);
1072 case SSL_CTRL_CLEAR_CERT_FLAGS:
1073 return (s->cert->cert_flags &= ~larg);
1075 case SSL_CTRL_GET_RAW_CIPHERLIST:
1077 if (s->s3->tmp.ciphers_raw == NULL)
1079 *(unsigned char **)parg = s->s3->tmp.ciphers_raw;
1080 return (int)s->s3->tmp.ciphers_rawlen;
1082 return TLS_CIPHER_LEN;
1084 case SSL_CTRL_GET_EXTMS_SUPPORT:
1085 if (!s->session || SSL_in_init(s) || s->in_handshake)
1087 if (s->session->flags & SSL_SESS_FLAG_EXTMS)
1092 return (s->method->ssl_ctrl(s, cmd, larg, parg));
1096 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
1099 case SSL_CTRL_SET_MSG_CALLBACK:
1100 s->msg_callback = (void (*)
1101 (int write_p, int version, int content_type,
1102 const void *buf, size_t len, SSL *ssl,
1107 return (s->method->ssl_callback_ctrl(s, cmd, fp));
1111 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1113 return ctx->sessions;
1116 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
1119 /* For some cases with ctx == NULL perform syntax checks */
1122 #ifndef OPENSSL_NO_EC
1123 case SSL_CTRL_SET_CURVES_LIST:
1124 return tls1_set_curves_list(NULL, NULL, parg);
1126 case SSL_CTRL_SET_SIGALGS_LIST:
1127 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
1128 return tls1_set_sigalgs_list(NULL, parg, 0);
1135 case SSL_CTRL_GET_READ_AHEAD:
1136 return (ctx->read_ahead);
1137 case SSL_CTRL_SET_READ_AHEAD:
1138 l = ctx->read_ahead;
1139 ctx->read_ahead = larg;
1142 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1143 ctx->msg_callback_arg = parg;
1146 case SSL_CTRL_GET_MAX_CERT_LIST:
1147 return (ctx->max_cert_list);
1148 case SSL_CTRL_SET_MAX_CERT_LIST:
1149 l = ctx->max_cert_list;
1150 ctx->max_cert_list = larg;
1153 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1154 l = ctx->session_cache_size;
1155 ctx->session_cache_size = larg;
1157 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1158 return (ctx->session_cache_size);
1159 case SSL_CTRL_SET_SESS_CACHE_MODE:
1160 l = ctx->session_cache_mode;
1161 ctx->session_cache_mode = larg;
1163 case SSL_CTRL_GET_SESS_CACHE_MODE:
1164 return (ctx->session_cache_mode);
1166 case SSL_CTRL_SESS_NUMBER:
1167 return (lh_SSL_SESSION_num_items(ctx->sessions));
1168 case SSL_CTRL_SESS_CONNECT:
1169 return (ctx->stats.sess_connect);
1170 case SSL_CTRL_SESS_CONNECT_GOOD:
1171 return (ctx->stats.sess_connect_good);
1172 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1173 return (ctx->stats.sess_connect_renegotiate);
1174 case SSL_CTRL_SESS_ACCEPT:
1175 return (ctx->stats.sess_accept);
1176 case SSL_CTRL_SESS_ACCEPT_GOOD:
1177 return (ctx->stats.sess_accept_good);
1178 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1179 return (ctx->stats.sess_accept_renegotiate);
1180 case SSL_CTRL_SESS_HIT:
1181 return (ctx->stats.sess_hit);
1182 case SSL_CTRL_SESS_CB_HIT:
1183 return (ctx->stats.sess_cb_hit);
1184 case SSL_CTRL_SESS_MISSES:
1185 return (ctx->stats.sess_miss);
1186 case SSL_CTRL_SESS_TIMEOUTS:
1187 return (ctx->stats.sess_timeout);
1188 case SSL_CTRL_SESS_CACHE_FULL:
1189 return (ctx->stats.sess_cache_full);
1190 case SSL_CTRL_OPTIONS:
1191 return (ctx->options |= larg);
1192 case SSL_CTRL_CLEAR_OPTIONS:
1193 return (ctx->options &= ~larg);
1195 return (ctx->mode |= larg);
1196 case SSL_CTRL_CLEAR_MODE:
1197 return (ctx->mode &= ~larg);
1198 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1199 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1201 ctx->max_send_fragment = larg;
1203 case SSL_CTRL_CERT_FLAGS:
1204 return (ctx->cert->cert_flags |= larg);
1205 case SSL_CTRL_CLEAR_CERT_FLAGS:
1206 return (ctx->cert->cert_flags &= ~larg);
1208 return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg));
1212 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
1215 case SSL_CTRL_SET_MSG_CALLBACK:
1216 ctx->msg_callback = (void (*)
1217 (int write_p, int version, int content_type,
1218 const void *buf, size_t len, SSL *ssl,
1223 return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp));
1227 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1235 return ((l > 0) ? 1 : -1);
1238 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
1239 const SSL_CIPHER *const *bp)
1243 l = (*ap)->id - (*bp)->id;
1247 return ((l > 0) ? 1 : -1);
1250 /** return a STACK of the ciphers available for the SSL and in order of
1252 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1255 if (s->cipher_list != NULL) {
1256 return (s->cipher_list);
1257 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
1258 return (s->ctx->cipher_list);
1264 STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
1266 if ((s == NULL) || (s->session == NULL) || !s->server)
1268 return s->session->ciphers;
1271 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
1273 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
1275 ciphers = SSL_get_ciphers(s);
1278 ssl_set_client_disabled(s);
1279 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
1280 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
1281 if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED)) {
1283 sk = sk_SSL_CIPHER_new_null();
1286 if (!sk_SSL_CIPHER_push(sk, c)) {
1287 sk_SSL_CIPHER_free(sk);
1295 /** return a STACK of the ciphers available for the SSL and in order of
1297 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1300 if (s->cipher_list_by_id != NULL) {
1301 return (s->cipher_list_by_id);
1302 } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) {
1303 return (s->ctx->cipher_list_by_id);
1309 /** The old interface to get the same thing as SSL_get_ciphers() */
1310 const char *SSL_get_cipher_list(const SSL *s, int n)
1313 STACK_OF(SSL_CIPHER) *sk;
1317 sk = SSL_get_ciphers(s);
1318 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1320 c = sk_SSL_CIPHER_value(sk, n);
1326 /** specify the ciphers to be used by default by the SSL_CTX */
1327 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1329 STACK_OF(SSL_CIPHER) *sk;
1331 sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list,
1332 &ctx->cipher_list_by_id, str, ctx->cert);
1334 * ssl_create_cipher_list may return an empty stack if it was unable to
1335 * find a cipher matching the given rule string (for example if the rule
1336 * string specifies a cipher which has been disabled). This is not an
1337 * error as far as ssl_create_cipher_list is concerned, and hence
1338 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
1342 else if (sk_SSL_CIPHER_num(sk) == 0) {
1343 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1349 /** specify the ciphers to be used by the SSL */
1350 int SSL_set_cipher_list(SSL *s, const char *str)
1352 STACK_OF(SSL_CIPHER) *sk;
1354 sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list,
1355 &s->cipher_list_by_id, str, s->cert);
1356 /* see comment in SSL_CTX_set_cipher_list */
1359 else if (sk_SSL_CIPHER_num(sk) == 0) {
1360 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1366 /* works well for SSLv2, not so good for SSLv3 */
1367 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len)
1370 STACK_OF(SSL_CIPHER) *sk;
1374 if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2))
1378 sk = s->session->ciphers;
1380 if (sk_SSL_CIPHER_num(sk) == 0)
1383 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
1386 c = sk_SSL_CIPHER_value(sk, i);
1387 n = strlen(c->name);
1403 /** return a servername extension value if provided in Client Hello, or NULL.
1404 * So far, only host_name types are defined (RFC 3546).
1407 const char *SSL_get_servername(const SSL *s, const int type)
1409 if (type != TLSEXT_NAMETYPE_host_name)
1412 return s->session && !s->tlsext_hostname ?
1413 s->session->tlsext_hostname : s->tlsext_hostname;
1416 int SSL_get_servername_type(const SSL *s)
1419 && (!s->tlsext_hostname ? s->session->
1420 tlsext_hostname : s->tlsext_hostname))
1421 return TLSEXT_NAMETYPE_host_name;
1426 * SSL_select_next_proto implements the standard protocol selection. It is
1427 * expected that this function is called from the callback set by
1428 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
1429 * vector of 8-bit, length prefixed byte strings. The length byte itself is
1430 * not included in the length. A byte string of length 0 is invalid. No byte
1431 * string may be truncated. The current, but experimental algorithm for
1432 * selecting the protocol is: 1) If the server doesn't support NPN then this
1433 * is indicated to the callback. In this case, the client application has to
1434 * abort the connection or have a default application level protocol. 2) If
1435 * the server supports NPN, but advertises an empty list then the client
1436 * selects the first protcol in its list, but indicates via the API that this
1437 * fallback case was enacted. 3) Otherwise, the client finds the first
1438 * protocol in the server's list that it supports and selects this protocol.
1439 * This is because it's assumed that the server has better information about
1440 * which protocol a client should use. 4) If the client doesn't support any
1441 * of the server's advertised protocols, then this is treated the same as
1442 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
1443 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1445 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
1446 const unsigned char *server,
1447 unsigned int server_len,
1448 const unsigned char *client,
1449 unsigned int client_len)
1452 const unsigned char *result;
1453 int status = OPENSSL_NPN_UNSUPPORTED;
1456 * For each protocol in server preference order, see if we support it.
1458 for (i = 0; i < server_len;) {
1459 for (j = 0; j < client_len;) {
1460 if (server[i] == client[j] &&
1461 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
1462 /* We found a match */
1463 result = &server[i];
1464 status = OPENSSL_NPN_NEGOTIATED;
1474 /* There's no overlap between our protocols and the server's list. */
1476 status = OPENSSL_NPN_NO_OVERLAP;
1479 *out = (unsigned char *)result + 1;
1480 *outlen = result[0];
1484 #ifndef OPENSSL_NO_NEXTPROTONEG
1486 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
1487 * client's requested protocol for this connection and returns 0. If the
1488 * client didn't request any protocol, then *data is set to NULL. Note that
1489 * the client can request any protocol it chooses. The value returned from
1490 * this function need not be a member of the list of supported protocols
1491 * provided by the callback.
1493 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
1496 *data = s->next_proto_negotiated;
1500 *len = s->next_proto_negotiated_len;
1505 * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when
1506 * a TLS server needs a list of supported protocols for Next Protocol
1507 * Negotiation. The returned list must be in wire format. The list is
1508 * returned by setting |out| to point to it and |outlen| to its length. This
1509 * memory will not be modified, but one should assume that the SSL* keeps a
1510 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
1511 * wishes to advertise. Otherwise, no such extension will be included in the
1514 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx,
1515 int (*cb) (SSL *ssl,
1518 unsigned int *outlen,
1519 void *arg), void *arg)
1521 ctx->next_protos_advertised_cb = cb;
1522 ctx->next_protos_advertised_cb_arg = arg;
1526 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1527 * client needs to select a protocol from the server's provided list. |out|
1528 * must be set to point to the selected protocol (which may be within |in|).
1529 * The length of the protocol name must be written into |outlen|. The
1530 * server's advertised protocols are provided in |in| and |inlen|. The
1531 * callback can assume that |in| is syntactically valid. The client must
1532 * select a protocol. It is fatal to the connection if this callback returns
1533 * a value other than SSL_TLSEXT_ERR_OK.
1535 void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx,
1536 int (*cb) (SSL *s, unsigned char **out,
1537 unsigned char *outlen,
1538 const unsigned char *in,
1540 void *arg), void *arg)
1542 ctx->next_proto_select_cb = cb;
1543 ctx->next_proto_select_cb_arg = arg;
1548 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
1549 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1550 * length-prefixed strings). Returns 0 on success.
1552 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
1553 unsigned protos_len)
1555 OPENSSL_free(ctx->alpn_client_proto_list);
1556 ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1557 if (!ctx->alpn_client_proto_list)
1559 memcpy(ctx->alpn_client_proto_list, protos, protos_len);
1560 ctx->alpn_client_proto_list_len = protos_len;
1566 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
1567 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1568 * length-prefixed strings). Returns 0 on success.
1570 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
1571 unsigned protos_len)
1573 OPENSSL_free(ssl->alpn_client_proto_list);
1574 ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1575 if (!ssl->alpn_client_proto_list)
1577 memcpy(ssl->alpn_client_proto_list, protos, protos_len);
1578 ssl->alpn_client_proto_list_len = protos_len;
1584 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
1585 * called during ClientHello processing in order to select an ALPN protocol
1586 * from the client's list of offered protocols.
1588 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
1589 int (*cb) (SSL *ssl,
1590 const unsigned char **out,
1591 unsigned char *outlen,
1592 const unsigned char *in,
1594 void *arg), void *arg)
1596 ctx->alpn_select_cb = cb;
1597 ctx->alpn_select_cb_arg = arg;
1601 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from
1602 * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name
1603 * (not including the leading length-prefix byte). If the server didn't
1604 * respond with a negotiated protocol then |*len| will be zero.
1606 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
1611 *data = ssl->s3->alpn_selected;
1615 *len = ssl->s3->alpn_selected_len;
1619 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1620 const char *label, size_t llen,
1621 const unsigned char *p, size_t plen,
1624 if (s->version < TLS1_VERSION)
1627 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
1632 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1637 ((unsigned int)a->session_id[0]) |
1638 ((unsigned int)a->session_id[1] << 8L) |
1639 ((unsigned long)a->session_id[2] << 16L) |
1640 ((unsigned long)a->session_id[3] << 24L);
1645 * NB: If this function (or indeed the hash function which uses a sort of
1646 * coarser function than this one) is changed, ensure
1647 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
1648 * being able to construct an SSL_SESSION that will collide with any existing
1649 * session with a matching session ID.
1651 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
1653 if (a->ssl_version != b->ssl_version)
1655 if (a->session_id_length != b->session_id_length)
1657 return (memcmp(a->session_id, b->session_id, a->session_id_length));
1661 * These wrapper functions should remain rather than redeclaring
1662 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1663 * variable. The reason is that the functions aren't static, they're exposed
1666 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1667 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1669 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1671 SSL_CTX *ret = NULL;
1674 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED);
1678 if (FIPS_mode() && (meth->version < TLS1_VERSION)) {
1679 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1683 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
1684 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1687 ret = OPENSSL_zalloc(sizeof(*ret));
1692 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
1693 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1694 /* We take the system default. */
1695 ret->session_timeout = meth->get_timeout();
1696 ret->references = 1;
1697 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
1698 ret->verify_mode = SSL_VERIFY_NONE;
1699 if ((ret->cert = ssl_cert_new()) == NULL)
1702 ret->sessions = lh_SSL_SESSION_new();
1703 if (ret->sessions == NULL)
1705 ret->cert_store = X509_STORE_new();
1706 if (ret->cert_store == NULL)
1709 if (!ssl_create_cipher_list(ret->method,
1710 &ret->cipher_list, &ret->cipher_list_by_id,
1711 SSL_DEFAULT_CIPHER_LIST, ret->cert)
1712 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
1713 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);
1717 ret->param = X509_VERIFY_PARAM_new();
1721 if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {
1722 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1725 if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) {
1726 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1730 if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL)
1733 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1735 /* No compression for DTLS */
1736 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
1737 ret->comp_methods = SSL_COMP_get_compression_methods();
1739 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1741 /* Setup RFC4507 ticket keys */
1742 if ((RAND_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1743 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1744 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1745 ret->options |= SSL_OP_NO_TICKET;
1747 #ifndef OPENSSL_NO_SRP
1748 if (!SSL_CTX_SRP_CTX_init(ret))
1751 #ifndef OPENSSL_NO_ENGINE
1752 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1753 # define eng_strx(x) #x
1754 # define eng_str(x) eng_strx(x)
1755 /* Use specific client engine automatically... ignore errors */
1758 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1761 ENGINE_load_builtin_engines();
1762 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1764 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
1770 * Default is to connect to non-RI servers. When RI is more widely
1771 * deployed might change this.
1773 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
1777 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
1783 void SSL_CTX_free(SSL_CTX *a)
1790 i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_SSL_CTX);
1792 REF_PRINT("SSL_CTX", a);
1798 fprintf(stderr, "SSL_CTX_free, bad reference count\n");
1803 X509_VERIFY_PARAM_free(a->param);
1806 * Free internal session cache. However: the remove_cb() may reference
1807 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1808 * after the sessions were flushed.
1809 * As the ex_data handling routines might also touch the session cache,
1810 * the most secure solution seems to be: empty (flush) the cache, then
1811 * free ex_data, then finally free the cache.
1812 * (See ticket [openssl.org #212].)
1814 if (a->sessions != NULL)
1815 SSL_CTX_flush_sessions(a, 0);
1817 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1818 lh_SSL_SESSION_free(a->sessions);
1819 X509_STORE_free(a->cert_store);
1820 sk_SSL_CIPHER_free(a->cipher_list);
1821 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1822 ssl_cert_free(a->cert);
1823 sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free);
1824 sk_X509_pop_free(a->extra_certs, X509_free);
1825 a->comp_methods = NULL;
1826 #ifndef OPENSSL_NO_SRTP
1827 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
1829 #ifndef OPENSSL_NO_SRP
1830 SSL_CTX_SRP_CTX_free(a);
1832 #ifndef OPENSSL_NO_ENGINE
1833 if (a->client_cert_engine)
1834 ENGINE_finish(a->client_cert_engine);
1837 #ifndef OPENSSL_NO_EC
1838 OPENSSL_free(a->tlsext_ecpointformatlist);
1839 OPENSSL_free(a->tlsext_ellipticcurvelist);
1841 OPENSSL_free(a->alpn_client_proto_list);
1846 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1848 ctx->default_passwd_callback = cb;
1851 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
1853 ctx->default_passwd_callback_userdata = u;
1856 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
1857 int (*cb) (X509_STORE_CTX *, void *),
1860 ctx->app_verify_callback = cb;
1861 ctx->app_verify_arg = arg;
1864 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
1865 int (*cb) (int, X509_STORE_CTX *))
1867 ctx->verify_mode = mode;
1868 ctx->default_verify_callback = cb;
1871 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
1873 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
1876 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg),
1879 ssl_cert_set_cert_cb(c->cert, cb, arg);
1882 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
1884 ssl_cert_set_cert_cb(s->cert, cb, arg);
1887 void ssl_set_masks(SSL *s, const SSL_CIPHER *cipher)
1891 uint32_t *pvalid = s->s3->tmp.valid_flags;
1892 int rsa_enc, rsa_tmp, rsa_sign, dh_tmp, dh_rsa, dh_dsa, dsa_sign;
1893 int rsa_enc_export, dh_rsa_export, dh_dsa_export;
1894 int rsa_tmp_export, dh_tmp_export, kl;
1895 unsigned long mask_k, mask_a, emask_k, emask_a;
1896 #ifndef OPENSSL_NO_EC
1897 int have_ecc_cert, ecdsa_ok, ecc_pkey_size;
1898 int have_ecdh_tmp, ecdh_ok;
1900 EVP_PKEY *ecc_pkey = NULL;
1901 int pk_nid = 0, md_nid = 0;
1906 kl = SSL_C_EXPORT_PKEYLENGTH(cipher);
1908 #ifndef OPENSSL_NO_RSA
1909 rsa_tmp = (c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1910 rsa_tmp_export = (c->rsa_tmp_cb != NULL ||
1911 (rsa_tmp && RSA_size(c->rsa_tmp) * 8 <= kl));
1913 rsa_tmp = rsa_tmp_export = 0;
1915 #ifndef OPENSSL_NO_DH
1916 dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto);
1917 dh_tmp_export = !c->dh_tmp_auto && (c->dh_tmp_cb != NULL ||
1919 && DH_size(c->dh_tmp) * 8 <= kl));
1921 dh_tmp = dh_tmp_export = 0;
1924 #ifndef OPENSSL_NO_EC
1925 have_ecdh_tmp = (c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
1927 cpk = &(c->pkeys[SSL_PKEY_RSA_ENC]);
1928 rsa_enc = pvalid[SSL_PKEY_RSA_ENC] & CERT_PKEY_VALID;
1929 rsa_enc_export = (rsa_enc && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
1930 cpk = &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1931 rsa_sign = pvalid[SSL_PKEY_RSA_SIGN] & CERT_PKEY_SIGN;
1932 cpk = &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1933 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_SIGN;
1934 cpk = &(c->pkeys[SSL_PKEY_DH_RSA]);
1935 dh_rsa = pvalid[SSL_PKEY_DH_RSA] & CERT_PKEY_VALID;
1936 dh_rsa_export = (dh_rsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
1937 cpk = &(c->pkeys[SSL_PKEY_DH_DSA]);
1938 dh_dsa = pvalid[SSL_PKEY_DH_DSA] & CERT_PKEY_VALID;
1939 dh_dsa_export = (dh_dsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
1940 cpk = &(c->pkeys[SSL_PKEY_ECC]);
1941 #ifndef OPENSSL_NO_EC
1942 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
1951 "rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1952 rsa_tmp, rsa_tmp_export, dh_tmp, have_ecdh_tmp, rsa_enc,
1953 rsa_enc_export, rsa_sign, dsa_sign, dh_rsa, dh_dsa);
1956 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
1957 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
1958 mask_k |= SSL_kGOST;
1959 mask_a |= SSL_aGOST01;
1962 if (rsa_enc || (rsa_tmp && rsa_sign))
1964 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1965 emask_k |= SSL_kRSA;
1968 emask_k |= SSL_kDHE;
1976 emask_k |= SSL_kDHr;
1981 emask_k |= SSL_kDHd;
1983 if (mask_k & (SSL_kDHr | SSL_kDHd))
1986 if (rsa_enc || rsa_sign) {
1988 emask_a |= SSL_aRSA;
1993 emask_a |= SSL_aDSS;
1996 mask_a |= SSL_aNULL;
1997 emask_a |= SSL_aNULL;
2000 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
2001 * depending on the key usage extension.
2003 #ifndef OPENSSL_NO_EC
2004 if (have_ecc_cert) {
2006 cpk = &c->pkeys[SSL_PKEY_ECC];
2008 ex_kusage = X509_get_key_usage(x);
2009 ecdh_ok = ex_kusage & X509v3_KU_KEY_AGREEMENT;
2010 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
2011 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
2013 ecc_pkey = X509_get_pubkey(x);
2014 ecc_pkey_size = (ecc_pkey != NULL) ? EVP_PKEY_bits(ecc_pkey) : 0;
2015 EVP_PKEY_free(ecc_pkey);
2016 OBJ_find_sigid_algs(X509_get_signature_nid(x), &md_nid, &pk_nid);
2019 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa) {
2020 mask_k |= SSL_kECDHr;
2021 mask_a |= SSL_aECDH;
2022 if (ecc_pkey_size <= 163) {
2023 emask_k |= SSL_kECDHr;
2024 emask_a |= SSL_aECDH;
2028 if (pk_nid == NID_X9_62_id_ecPublicKey) {
2029 mask_k |= SSL_kECDHe;
2030 mask_a |= SSL_aECDH;
2031 if (ecc_pkey_size <= 163) {
2032 emask_k |= SSL_kECDHe;
2033 emask_a |= SSL_aECDH;
2038 mask_a |= SSL_aECDSA;
2039 emask_a |= SSL_aECDSA;
2044 #ifndef OPENSSL_NO_EC
2045 if (have_ecdh_tmp) {
2046 mask_k |= SSL_kECDHE;
2047 emask_k |= SSL_kECDHE;
2051 #ifndef OPENSSL_NO_PSK
2054 emask_k |= SSL_kPSK;
2055 emask_a |= SSL_aPSK;
2056 if (mask_k & SSL_kRSA)
2057 mask_k |= SSL_kRSAPSK;
2058 if (mask_k & SSL_kDHE)
2059 mask_k |= SSL_kDHEPSK;
2060 if (mask_k & SSL_kECDHE)
2061 mask_k |= SSL_kECDHEPSK;
2064 s->s3->tmp.mask_k = mask_k;
2065 s->s3->tmp.mask_a = mask_a;
2066 s->s3->tmp.export_mask_k = emask_k;
2067 s->s3->tmp.export_mask_a = emask_a;
2070 #ifndef OPENSSL_NO_EC
2072 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2074 unsigned long alg_k, alg_a;
2075 EVP_PKEY *pkey = NULL;
2077 int md_nid = 0, pk_nid = 0;
2078 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2079 uint32_t ex_kusage = X509_get_key_usage(x);
2081 alg_k = cs->algorithm_mkey;
2082 alg_a = cs->algorithm_auth;
2084 if (SSL_C_IS_EXPORT(cs)) {
2085 /* ECDH key length in export ciphers must be <= 163 bits */
2086 pkey = X509_get_pubkey(x);
2089 keysize = EVP_PKEY_bits(pkey);
2090 EVP_PKEY_free(pkey);
2095 OBJ_find_sigid_algs(X509_get_signature_nid(x), &md_nid, &pk_nid);
2097 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr) {
2098 /* key usage, if present, must allow key agreement */
2099 if (!(ex_kusage & X509v3_KU_KEY_AGREEMENT)) {
2100 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2101 SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2104 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION) {
2105 /* signature alg must be ECDSA */
2106 if (pk_nid != NID_X9_62_id_ecPublicKey) {
2107 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2108 SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2112 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION) {
2113 /* signature alg must be RSA */
2115 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa) {
2116 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2117 SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2122 if (alg_a & SSL_aECDSA) {
2123 /* key usage, if present, must allow signing */
2124 if (!(ex_kusage & X509v3_KU_DIGITAL_SIGNATURE)) {
2125 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2126 SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2131 return 1; /* all checks are ok */
2136 static int ssl_get_server_cert_index(const SSL *s)
2139 idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2140 if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2141 idx = SSL_PKEY_RSA_SIGN;
2143 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX, ERR_R_INTERNAL_ERROR);
2147 CERT_PKEY *ssl_get_server_send_pkey(SSL *s)
2153 if (!s->s3 || !s->s3->tmp.new_cipher)
2155 ssl_set_masks(s, s->s3->tmp.new_cipher);
2157 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2159 * Broken protocol test: return last used certificate: which may mismatch
2162 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2166 i = ssl_get_server_cert_index(s);
2168 /* This may or may not be an error. */
2173 return &c->pkeys[i];
2176 EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher,
2179 unsigned long alg_a;
2183 alg_a = cipher->algorithm_auth;
2186 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2188 * Broken protocol test: use last key: which may mismatch the one
2191 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2192 idx = c->key - c->pkeys;
2196 if ((alg_a & SSL_aDSS) &&
2197 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2198 idx = SSL_PKEY_DSA_SIGN;
2199 else if (alg_a & SSL_aRSA) {
2200 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2201 idx = SSL_PKEY_RSA_SIGN;
2202 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2203 idx = SSL_PKEY_RSA_ENC;
2204 } else if ((alg_a & SSL_aECDSA) &&
2205 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2208 SSLerr(SSL_F_SSL_GET_SIGN_PKEY, ERR_R_INTERNAL_ERROR);
2212 *pmd = s->s3->tmp.md[idx];
2213 return c->pkeys[idx].privatekey;
2216 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
2217 size_t *serverinfo_length)
2221 *serverinfo_length = 0;
2224 i = ssl_get_server_cert_index(s);
2228 if (c->pkeys[i].serverinfo == NULL)
2231 *serverinfo = c->pkeys[i].serverinfo;
2232 *serverinfo_length = c->pkeys[i].serverinfo_length;
2236 void ssl_update_cache(SSL *s, int mode)
2241 * If the session_id_length is 0, we are not supposed to cache it, and it
2242 * would be rather hard to do anyway :-)
2244 if (s->session->session_id_length == 0)
2247 i = s->session_ctx->session_cache_mode;
2248 if ((i & mode) && (!s->hit)
2249 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2250 || SSL_CTX_add_session(s->session_ctx, s->session))
2251 && (s->session_ctx->new_session_cb != NULL)) {
2252 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION);
2253 if (!s->session_ctx->new_session_cb(s, s->session))
2254 SSL_SESSION_free(s->session);
2257 /* auto flush every 255 connections */
2258 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
2259 if ((((mode & SSL_SESS_CACHE_CLIENT)
2260 ? s->session_ctx->stats.sess_connect_good
2261 : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) {
2262 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
2267 const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx)
2272 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2277 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2282 if (s->method != meth) {
2283 if (s->handshake_func != NULL)
2284 conn = (s->handshake_func == s->method->ssl_connect);
2286 if (s->method->version == meth->version)
2289 s->method->ssl_free(s);
2291 ret = s->method->ssl_new(s);
2295 s->handshake_func = meth->ssl_connect;
2297 s->handshake_func = meth->ssl_accept;
2302 int SSL_get_error(const SSL *s, int i)
2309 return (SSL_ERROR_NONE);
2312 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
2313 * where we do encode the error
2315 if ((l = ERR_peek_error()) != 0) {
2316 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2317 return (SSL_ERROR_SYSCALL);
2319 return (SSL_ERROR_SSL);
2322 if ((i < 0) && SSL_want_read(s)) {
2323 bio = SSL_get_rbio(s);
2324 if (BIO_should_read(bio))
2325 return (SSL_ERROR_WANT_READ);
2326 else if (BIO_should_write(bio))
2328 * This one doesn't make too much sense ... We never try to write
2329 * to the rbio, and an application program where rbio and wbio
2330 * are separate couldn't even know what it should wait for.
2331 * However if we ever set s->rwstate incorrectly (so that we have
2332 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
2333 * wbio *are* the same, this test works around that bug; so it
2334 * might be safer to keep it.
2336 return (SSL_ERROR_WANT_WRITE);
2337 else if (BIO_should_io_special(bio)) {
2338 reason = BIO_get_retry_reason(bio);
2339 if (reason == BIO_RR_CONNECT)
2340 return (SSL_ERROR_WANT_CONNECT);
2341 else if (reason == BIO_RR_ACCEPT)
2342 return (SSL_ERROR_WANT_ACCEPT);
2344 return (SSL_ERROR_SYSCALL); /* unknown */
2348 if ((i < 0) && SSL_want_write(s)) {
2349 bio = SSL_get_wbio(s);
2350 if (BIO_should_write(bio))
2351 return (SSL_ERROR_WANT_WRITE);
2352 else if (BIO_should_read(bio))
2354 * See above (SSL_want_read(s) with BIO_should_write(bio))
2356 return (SSL_ERROR_WANT_READ);
2357 else if (BIO_should_io_special(bio)) {
2358 reason = BIO_get_retry_reason(bio);
2359 if (reason == BIO_RR_CONNECT)
2360 return (SSL_ERROR_WANT_CONNECT);
2361 else if (reason == BIO_RR_ACCEPT)
2362 return (SSL_ERROR_WANT_ACCEPT);
2364 return (SSL_ERROR_SYSCALL);
2367 if ((i < 0) && SSL_want_x509_lookup(s)) {
2368 return (SSL_ERROR_WANT_X509_LOOKUP);
2372 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2373 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2374 return (SSL_ERROR_ZERO_RETURN);
2376 return (SSL_ERROR_SYSCALL);
2379 int SSL_do_handshake(SSL *s)
2383 if (s->handshake_func == NULL) {
2384 SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET);
2388 s->method->ssl_renegotiate_check(s);
2390 if (SSL_in_init(s) || SSL_in_before(s)) {
2391 ret = s->handshake_func(s);
2396 void SSL_set_accept_state(SSL *s)
2400 s->state = SSL_ST_ACCEPT | SSL_ST_BEFORE;
2401 s->handshake_func = s->method->ssl_accept;
2405 void SSL_set_connect_state(SSL *s)
2409 s->state = SSL_ST_CONNECT | SSL_ST_BEFORE;
2410 s->handshake_func = s->method->ssl_connect;
2414 int ssl_undefined_function(SSL *s)
2416 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2420 int ssl_undefined_void_function(void)
2422 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,
2423 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2427 int ssl_undefined_const_function(const SSL *s)
2429 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,
2430 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2434 SSL_METHOD *ssl_bad_method(int ver)
2436 SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2440 const char *SSL_get_version(const SSL *s)
2442 if (s->version == TLS1_2_VERSION)
2444 else if (s->version == TLS1_1_VERSION)
2446 else if (s->version == TLS1_VERSION)
2448 else if (s->version == SSL3_VERSION)
2450 else if (s->version == DTLS1_BAD_VER)
2451 return ("DTLSv0.9");
2452 else if (s->version == DTLS1_VERSION)
2454 else if (s->version == DTLS1_2_VERSION)
2455 return ("DTLSv1.2");
2460 SSL *SSL_dup(SSL *s)
2462 STACK_OF(X509_NAME) *sk;
2467 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2470 ret->version = s->version;
2471 ret->type = s->type;
2472 ret->method = s->method;
2474 if (s->session != NULL) {
2475 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2476 if (!SSL_copy_session_id(ret, s))
2480 * No session has been established yet, so we have to expect that
2481 * s->cert or ret->cert will be changed later -- they should not both
2482 * point to the same object, and thus we can't use
2483 * SSL_copy_session_id.
2486 ret->method->ssl_free(ret);
2487 ret->method = s->method;
2488 ret->method->ssl_new(ret);
2490 if (s->cert != NULL) {
2491 ssl_cert_free(ret->cert);
2492 ret->cert = ssl_cert_dup(s->cert);
2493 if (ret->cert == NULL)
2497 if (!SSL_set_session_id_context(ret, s->sid_ctx, s->sid_ctx_length))
2501 ret->options = s->options;
2502 ret->mode = s->mode;
2503 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
2504 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
2505 ret->msg_callback = s->msg_callback;
2506 ret->msg_callback_arg = s->msg_callback_arg;
2507 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
2508 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
2509 ret->generate_session_id = s->generate_session_id;
2511 SSL_set_info_callback(ret, SSL_get_info_callback(s));
2513 ret->debug = s->debug;
2515 /* copy app data, a little dangerous perhaps */
2516 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2519 /* setup rbio, and wbio */
2520 if (s->rbio != NULL) {
2521 if (!BIO_dup_state(s->rbio, (char *)&ret->rbio))
2524 if (s->wbio != NULL) {
2525 if (s->wbio != s->rbio) {
2526 if (!BIO_dup_state(s->wbio, (char *)&ret->wbio))
2529 ret->wbio = ret->rbio;
2531 ret->rwstate = s->rwstate;
2532 ret->in_handshake = s->in_handshake;
2533 ret->handshake_func = s->handshake_func;
2534 ret->server = s->server;
2535 ret->renegotiate = s->renegotiate;
2536 ret->new_session = s->new_session;
2537 ret->quiet_shutdown = s->quiet_shutdown;
2538 ret->shutdown = s->shutdown;
2539 ret->state = s->state; /* SSL_dup does not really work at any state,
2541 RECORD_LAYER_dup(&ret->rlayer, &s->rlayer);
2542 ret->init_num = 0; /* would have to copy ret->init_buf,
2543 * ret->init_msg, ret->init_num,
2547 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2549 /* dup the cipher_list and cipher_list_by_id stacks */
2550 if (s->cipher_list != NULL) {
2551 if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2554 if (s->cipher_list_by_id != NULL)
2555 if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2559 /* Dup the client_CA list */
2560 if (s->client_CA != NULL) {
2561 if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL)
2563 ret->client_CA = sk;
2564 for (i = 0; i < sk_X509_NAME_num(sk); i++) {
2565 xn = sk_X509_NAME_value(sk, i);
2566 if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) {
2579 void ssl_clear_cipher_ctx(SSL *s)
2581 if (s->enc_read_ctx != NULL) {
2582 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2583 OPENSSL_free(s->enc_read_ctx);
2584 s->enc_read_ctx = NULL;
2586 if (s->enc_write_ctx != NULL) {
2587 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2588 OPENSSL_free(s->enc_write_ctx);
2589 s->enc_write_ctx = NULL;
2591 #ifndef OPENSSL_NO_COMP
2592 COMP_CTX_free(s->expand);
2594 COMP_CTX_free(s->compress);
2599 X509 *SSL_get_certificate(const SSL *s)
2601 if (s->cert != NULL)
2602 return (s->cert->key->x509);
2607 EVP_PKEY *SSL_get_privatekey(const SSL *s)
2609 if (s->cert != NULL)
2610 return (s->cert->key->privatekey);
2615 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
2617 if (ctx->cert != NULL)
2618 return ctx->cert->key->x509;
2623 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
2625 if (ctx->cert != NULL)
2626 return ctx->cert->key->privatekey;
2631 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2633 if ((s->session != NULL) && (s->session->cipher != NULL))
2634 return (s->session->cipher);
2638 const COMP_METHOD *SSL_get_current_compression(SSL *s)
2640 #ifndef OPENSSL_NO_COMP
2641 return s->compress ? COMP_CTX_get_method(s->compress) : NULL;
2647 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2649 #ifndef OPENSSL_NO_COMP
2650 return s->expand ? COMP_CTX_get_method(s->expand) : NULL;
2656 int ssl_init_wbio_buffer(SSL *s, int push)
2660 if (s->bbio == NULL) {
2661 bbio = BIO_new(BIO_f_buffer());
2667 if (s->bbio == s->wbio)
2668 s->wbio = BIO_pop(s->wbio);
2670 (void)BIO_reset(bbio);
2671 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2672 if (!BIO_set_read_buffer_size(bbio, 1)) {
2673 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB);
2677 if (s->wbio != bbio)
2678 s->wbio = BIO_push(bbio, s->wbio);
2680 if (s->wbio == bbio)
2681 s->wbio = BIO_pop(bbio);
2686 void ssl_free_wbio_buffer(SSL *s)
2688 /* callers ensure s is never null */
2689 if (s->bbio == NULL)
2692 if (s->bbio == s->wbio) {
2693 /* remove buffering */
2694 s->wbio = BIO_pop(s->wbio);
2695 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids
2696 * adding one more preprocessor symbol */
2697 assert(s->wbio != NULL);
2704 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
2706 ctx->quiet_shutdown = mode;
2709 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2711 return (ctx->quiet_shutdown);
2714 void SSL_set_quiet_shutdown(SSL *s, int mode)
2716 s->quiet_shutdown = mode;
2719 int SSL_get_quiet_shutdown(const SSL *s)
2721 return (s->quiet_shutdown);
2724 void SSL_set_shutdown(SSL *s, int mode)
2729 int SSL_get_shutdown(const SSL *s)
2731 return (s->shutdown);
2734 int SSL_version(const SSL *s)
2736 return (s->version);
2739 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2744 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
2747 if (ssl->ctx == ctx)
2750 ctx = ssl->initial_ctx;
2751 new_cert = ssl_cert_dup(ctx->cert);
2752 if (new_cert == NULL) {
2755 ssl_cert_free(ssl->cert);
2756 ssl->cert = new_cert;
2759 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
2760 * so setter APIs must prevent invalid lengths from entering the system.
2762 OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx));
2765 * If the session ID context matches that of the parent SSL_CTX,
2766 * inherit it from the new SSL_CTX as well. If however the context does
2767 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
2768 * leave it unchanged.
2770 if ((ssl->ctx != NULL) &&
2771 (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
2772 (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) {
2773 ssl->sid_ctx_length = ctx->sid_ctx_length;
2774 memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx));
2777 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
2778 SSL_CTX_free(ssl->ctx); /* decrement reference count */
2784 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2786 return (X509_STORE_set_default_paths(ctx->cert_store));
2789 int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
2791 X509_LOOKUP *lookup;
2793 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
2796 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
2798 /* Clear any errors if the default directory does not exist */
2804 int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
2806 X509_LOOKUP *lookup;
2808 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
2812 X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
2814 /* Clear any errors if the default file does not exist */
2820 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2823 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath));
2826 void SSL_set_info_callback(SSL *ssl,
2827 void (*cb) (const SSL *ssl, int type, int val))
2829 ssl->info_callback = cb;
2833 * One compiler (Diab DCC) doesn't like argument names in returned function
2836 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
2839 return ssl->info_callback;
2842 int SSL_state(const SSL *ssl)
2844 return (ssl->state);
2847 void SSL_set_state(SSL *ssl, int state)
2852 void SSL_set_verify_result(SSL *ssl, long arg)
2854 ssl->verify_result = arg;
2857 long SSL_get_verify_result(const SSL *ssl)
2859 return (ssl->verify_result);
2862 size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
2865 return sizeof(ssl->s3->client_random);
2866 if (outlen > sizeof(ssl->s3->client_random))
2867 outlen = sizeof(ssl->s3->client_random);
2868 memcpy(out, ssl->s3->client_random, outlen);
2872 size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
2875 return sizeof(ssl->s3->server_random);
2876 if (outlen > sizeof(ssl->s3->server_random))
2877 outlen = sizeof(ssl->s3->server_random);
2878 memcpy(out, ssl->s3->server_random, outlen);
2882 size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
2883 unsigned char *out, size_t outlen)
2885 if (session->master_key_length < 0) {
2886 /* Should never happen */
2890 return session->master_key_length;
2891 if (outlen > (size_t)session->master_key_length)
2892 outlen = session->master_key_length;
2893 memcpy(out, session->master_key, outlen);
2897 int SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
2898 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
2900 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2901 new_func, dup_func, free_func);
2904 int SSL_set_ex_data(SSL *s, int idx, void *arg)
2906 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
2909 void *SSL_get_ex_data(const SSL *s, int idx)
2911 return (CRYPTO_get_ex_data(&s->ex_data, idx));
2914 int SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
2915 CRYPTO_EX_dup *dup_func,
2916 CRYPTO_EX_free *free_func)
2918 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2919 new_func, dup_func, free_func);
2922 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
2924 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
2927 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
2929 return (CRYPTO_get_ex_data(&s->ex_data, idx));
2937 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
2939 return (ctx->cert_store);
2942 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
2944 X509_STORE_free(ctx->cert_store);
2945 ctx->cert_store = store;
2948 int SSL_want(const SSL *s)
2950 return (s->rwstate);
2954 * \brief Set the callback for generating temporary RSA keys.
2955 * \param ctx the SSL context.
2956 * \param cb the callback
2959 #ifndef OPENSSL_NO_RSA
2960 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb) (SSL *ssl,
2964 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb);
2967 void SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb) (SSL *ssl,
2971 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb);
2977 * \brief The RSA temporary key callback function.
2978 * \param ssl the SSL session.
2979 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2980 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2981 * of the required key in bits.
2982 * \return the temporary RSA key.
2983 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2986 RSA *cb(SSL *ssl, int is_export, int keylength)
2992 * \brief Set the callback for generating temporary DH keys.
2993 * \param ctx the SSL context.
2994 * \param dh the callback
2997 #ifndef OPENSSL_NO_DH
2998 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
2999 DH *(*dh) (SSL *ssl, int is_export,
3002 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3005 void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export,
3008 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3012 #ifndef OPENSSL_NO_EC
3013 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,
3014 EC_KEY *(*ecdh) (SSL *ssl, int is_export,
3017 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB,
3018 (void (*)(void))ecdh);
3021 void SSL_set_tmp_ecdh_callback(SSL *ssl,
3022 EC_KEY *(*ecdh) (SSL *ssl, int is_export,
3025 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB, (void (*)(void))ecdh);
3029 #ifndef OPENSSL_NO_PSK
3030 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3032 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3033 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT,
3034 SSL_R_DATA_LENGTH_TOO_LONG);
3037 OPENSSL_free(ctx->cert->psk_identity_hint);
3038 if (identity_hint != NULL) {
3039 ctx->cert->psk_identity_hint = BUF_strdup(identity_hint);
3040 if (ctx->cert->psk_identity_hint == NULL)
3043 ctx->cert->psk_identity_hint = NULL;
3047 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3052 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3053 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3056 OPENSSL_free(s->cert->psk_identity_hint);
3057 if (identity_hint != NULL) {
3058 s->cert->psk_identity_hint = BUF_strdup(identity_hint);
3059 if (s->cert->psk_identity_hint == NULL)
3062 s->cert->psk_identity_hint = NULL;
3066 const char *SSL_get_psk_identity_hint(const SSL *s)
3068 if (s == NULL || s->session == NULL)
3070 return (s->session->psk_identity_hint);
3073 const char *SSL_get_psk_identity(const SSL *s)
3075 if (s == NULL || s->session == NULL)
3077 return (s->session->psk_identity);
3080 void SSL_set_psk_client_callback(SSL *s,
3081 unsigned int (*cb) (SSL *ssl,
3090 s->psk_client_callback = cb;
3093 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3094 unsigned int (*cb) (SSL *ssl,
3103 ctx->psk_client_callback = cb;
3106 void SSL_set_psk_server_callback(SSL *s,
3107 unsigned int (*cb) (SSL *ssl,
3108 const char *identity,
3113 s->psk_server_callback = cb;
3116 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3117 unsigned int (*cb) (SSL *ssl,
3118 const char *identity,
3123 ctx->psk_server_callback = cb;
3127 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
3128 void (*cb) (int write_p, int version,
3129 int content_type, const void *buf,
3130 size_t len, SSL *ssl, void *arg))
3132 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3135 void SSL_set_msg_callback(SSL *ssl,
3136 void (*cb) (int write_p, int version,
3137 int content_type, const void *buf,
3138 size_t len, SSL *ssl, void *arg))
3140 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3143 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
3144 int (*cb) (SSL *ssl,
3148 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3149 (void (*)(void))cb);
3152 void SSL_set_not_resumable_session_callback(SSL *ssl,
3153 int (*cb) (SSL *ssl,
3154 int is_forward_secure))
3156 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3157 (void (*)(void))cb);
3161 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3162 * vairable, freeing EVP_MD_CTX previously stored in that variable, if any.
3163 * If EVP_MD pointer is passed, initializes ctx with this md Returns newly
3167 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
3169 ssl_clear_hash_ctx(hash);
3170 *hash = EVP_MD_CTX_create();
3172 EVP_DigestInit_ex(*hash, md, NULL);
3176 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3180 EVP_MD_CTX_destroy(*hash);
3184 /* Retrieve handshake hashes */
3185 int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen)
3187 unsigned char *p = out;
3192 EVP_MD_CTX_init(&ctx);
3193 for (idx = 0; ssl_get_handshake_digest(idx, &mask, &md); idx++) {
3194 if (mask & ssl_get_algorithm2(s)) {
3195 int hashsize = EVP_MD_size(md);
3196 EVP_MD_CTX *hdgst = s->s3->handshake_dgst[idx];
3197 if (!hdgst || hashsize < 0 || hashsize > outlen)
3199 if (!EVP_MD_CTX_copy_ex(&ctx, hdgst))
3201 if (!EVP_DigestFinal_ex(&ctx, p, NULL))
3209 EVP_MD_CTX_cleanup(&ctx);
3213 void SSL_set_debug(SSL *s, int debug)
3218 int SSL_cache_hit(SSL *s)
3223 int SSL_is_server(SSL *s)
3228 void SSL_set_security_level(SSL *s, int level)
3230 s->cert->sec_level = level;
3233 int SSL_get_security_level(const SSL *s)
3235 return s->cert->sec_level;
3238 void SSL_set_security_callback(SSL *s,
3239 int (*cb) (SSL *s, SSL_CTX *ctx, int op,
3240 int bits, int nid, void *other,
3243 s->cert->sec_cb = cb;
3246 int (*SSL_get_security_callback(const SSL *s)) (SSL *s, SSL_CTX *ctx, int op,
3248 void *other, void *ex) {
3249 return s->cert->sec_cb;
3252 void SSL_set0_security_ex_data(SSL *s, void *ex)
3254 s->cert->sec_ex = ex;
3257 void *SSL_get0_security_ex_data(const SSL *s)
3259 return s->cert->sec_ex;
3262 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
3264 ctx->cert->sec_level = level;
3267 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
3269 return ctx->cert->sec_level;
3272 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
3273 int (*cb) (SSL *s, SSL_CTX *ctx, int op,
3274 int bits, int nid, void *other,
3277 ctx->cert->sec_cb = cb;
3280 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (SSL *s,
3286 return ctx->cert->sec_cb;
3289 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
3291 ctx->cert->sec_ex = ex;
3294 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
3296 return ctx->cert->sec_ex;
3299 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);