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);
223 s->version = s->method->version;
224 s->client_version = s->version;
225 s->rwstate = SSL_NOTHING;
227 BUF_MEM_free(s->init_buf);
231 s->no_cert_verify = 0;
234 * Check to see if we were changed into a different method, if so, revert
235 * back if we are not doing session-id reuse.
237 if (!s->in_handshake && (s->session == NULL)
238 && (s->method != s->ctx->method)) {
239 s->method->ssl_free(s);
240 s->method = s->ctx->method;
241 if (!s->method->ssl_new(s))
244 s->method->ssl_clear(s);
246 RECORD_LAYER_clear(&s->rlayer);
251 /** Used to change an SSL_CTXs default SSL method type */
252 int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
254 STACK_OF(SSL_CIPHER) *sk;
258 sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list),
259 &(ctx->cipher_list_by_id),
260 SSL_DEFAULT_CIPHER_LIST, ctx->cert);
261 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
262 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,
263 SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
269 SSL *SSL_new(SSL_CTX *ctx)
274 SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);
277 if (ctx->method == NULL) {
278 SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
282 s = OPENSSL_zalloc(sizeof(*s));
286 RECORD_LAYER_init(&s->rlayer, s);
288 s->options = ctx->options;
290 s->max_cert_list = ctx->max_cert_list;
294 * Earlier library versions used to copy the pointer to the CERT, not
295 * its contents; only when setting new parameters for the per-SSL
296 * copy, ssl_cert_new would be called (and the direct reference to
297 * the per-SSL_CTX settings would be lost, but those still were
298 * indirectly accessed for various purposes, and for that reason they
299 * used to be known as s->ctx->default_cert). Now we don't look at the
300 * SSL_CTX's CERT after having duplicated it once.
302 s->cert = ssl_cert_dup(ctx->cert);
306 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
307 s->msg_callback = ctx->msg_callback;
308 s->msg_callback_arg = ctx->msg_callback_arg;
309 s->verify_mode = ctx->verify_mode;
310 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
311 s->sid_ctx_length = ctx->sid_ctx_length;
312 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
313 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
314 s->verify_callback = ctx->default_verify_callback;
315 s->generate_session_id = ctx->generate_session_id;
317 s->param = X509_VERIFY_PARAM_new();
320 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
321 s->quiet_shutdown = ctx->quiet_shutdown;
322 s->max_send_fragment = ctx->max_send_fragment;
324 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
326 s->tlsext_debug_cb = 0;
327 s->tlsext_debug_arg = NULL;
328 s->tlsext_ticket_expected = 0;
329 s->tlsext_status_type = -1;
330 s->tlsext_status_expected = 0;
331 s->tlsext_ocsp_ids = NULL;
332 s->tlsext_ocsp_exts = NULL;
333 s->tlsext_ocsp_resp = NULL;
334 s->tlsext_ocsp_resplen = -1;
335 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
336 s->initial_ctx = ctx;
337 # ifndef OPENSSL_NO_EC
338 if (ctx->tlsext_ecpointformatlist) {
339 s->tlsext_ecpointformatlist =
340 BUF_memdup(ctx->tlsext_ecpointformatlist,
341 ctx->tlsext_ecpointformatlist_length);
342 if (!s->tlsext_ecpointformatlist)
344 s->tlsext_ecpointformatlist_length =
345 ctx->tlsext_ecpointformatlist_length;
347 if (ctx->tlsext_ellipticcurvelist) {
348 s->tlsext_ellipticcurvelist =
349 BUF_memdup(ctx->tlsext_ellipticcurvelist,
350 ctx->tlsext_ellipticcurvelist_length);
351 if (!s->tlsext_ellipticcurvelist)
353 s->tlsext_ellipticcurvelist_length =
354 ctx->tlsext_ellipticcurvelist_length;
357 # ifndef OPENSSL_NO_NEXTPROTONEG
358 s->next_proto_negotiated = NULL;
361 if (s->ctx->alpn_client_proto_list) {
362 s->alpn_client_proto_list =
363 OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);
364 if (s->alpn_client_proto_list == NULL)
366 memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,
367 s->ctx->alpn_client_proto_list_len);
368 s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;
371 s->verify_result = X509_V_OK;
373 s->method = ctx->method;
375 if (!s->method->ssl_new(s))
378 s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;
383 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
385 #ifndef OPENSSL_NO_PSK
386 s->psk_client_callback = ctx->psk_client_callback;
387 s->psk_server_callback = ctx->psk_server_callback;
393 SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
397 int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
398 unsigned int sid_ctx_len)
400 if (sid_ctx_len > sizeof ctx->sid_ctx) {
401 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,
402 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
405 ctx->sid_ctx_length = sid_ctx_len;
406 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
411 int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
412 unsigned int sid_ctx_len)
414 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
415 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,
416 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
419 ssl->sid_ctx_length = sid_ctx_len;
420 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len);
425 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
427 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
428 ctx->generate_session_id = cb;
429 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
433 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
435 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
436 ssl->generate_session_id = cb;
437 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
441 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
445 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
446 * we can "construct" a session to give us the desired check - ie. to
447 * find if there's a session in the hash table that would conflict with
448 * any new session built out of this id/id_len and the ssl_version in use
453 if (id_len > sizeof r.session_id)
456 r.ssl_version = ssl->version;
457 r.session_id_length = id_len;
458 memcpy(r.session_id, id, id_len);
460 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
461 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
462 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
466 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
468 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
471 int SSL_set_purpose(SSL *s, int purpose)
473 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
476 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
478 return X509_VERIFY_PARAM_set_trust(s->param, trust);
481 int SSL_set_trust(SSL *s, int trust)
483 return X509_VERIFY_PARAM_set_trust(s->param, trust);
486 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
488 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
491 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
493 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
496 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
501 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
506 void SSL_certs_clear(SSL *s)
508 ssl_cert_clear_certs(s->cert);
511 void SSL_free(SSL *s)
518 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL);
526 fprintf(stderr, "SSL_free, bad reference count\n");
531 X509_VERIFY_PARAM_free(s->param);
532 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
534 if (s->bbio != NULL) {
535 /* If the buffering BIO is in place, pop it off */
536 if (s->bbio == s->wbio) {
537 s->wbio = BIO_pop(s->wbio);
542 BIO_free_all(s->rbio);
543 if (s->wbio != s->rbio)
544 BIO_free_all(s->wbio);
546 BUF_MEM_free(s->init_buf);
548 /* add extra stuff */
549 sk_SSL_CIPHER_free(s->cipher_list);
550 sk_SSL_CIPHER_free(s->cipher_list_by_id);
552 /* Make the next call work :-) */
553 if (s->session != NULL) {
554 ssl_clear_bad_session(s);
555 SSL_SESSION_free(s->session);
560 ssl_cert_free(s->cert);
561 /* Free up if allocated */
563 OPENSSL_free(s->tlsext_hostname);
564 SSL_CTX_free(s->initial_ctx);
565 #ifndef OPENSSL_NO_EC
566 OPENSSL_free(s->tlsext_ecpointformatlist);
567 OPENSSL_free(s->tlsext_ellipticcurvelist);
568 #endif /* OPENSSL_NO_EC */
569 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free);
570 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
571 OPENSSL_free(s->tlsext_ocsp_resp);
572 OPENSSL_free(s->alpn_client_proto_list);
574 sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free);
576 if (s->method != NULL)
577 s->method->ssl_free(s);
579 RECORD_LAYER_release(&s->rlayer);
581 SSL_CTX_free(s->ctx);
583 #if !defined(OPENSSL_NO_NEXTPROTONEG)
584 OPENSSL_free(s->next_proto_negotiated);
587 #ifndef OPENSSL_NO_SRTP
588 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
594 void SSL_set_rbio(SSL *s, BIO *rbio)
597 BIO_free_all(s->rbio);
601 void SSL_set_wbio(SSL *s, BIO *wbio)
604 * If the output buffering BIO is still in place, remove it
606 if (s->bbio != NULL) {
607 if (s->wbio == s->bbio) {
608 s->wbio = s->wbio->next_bio;
609 s->bbio->next_bio = NULL;
612 if (s->wbio != wbio && s->rbio != s->wbio)
613 BIO_free_all(s->wbio);
617 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
619 SSL_set_wbio(s, wbio);
620 SSL_set_rbio(s, rbio);
623 BIO *SSL_get_rbio(const SSL *s)
628 BIO *SSL_get_wbio(const SSL *s)
633 int SSL_get_fd(const SSL *s)
635 return (SSL_get_rfd(s));
638 int SSL_get_rfd(const SSL *s)
644 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
650 int SSL_get_wfd(const SSL *s)
656 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
662 #ifndef OPENSSL_NO_SOCK
663 int SSL_set_fd(SSL *s, int fd)
668 bio = BIO_new(BIO_s_socket());
671 SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB);
674 BIO_set_fd(bio, fd, BIO_NOCLOSE);
675 SSL_set_bio(s, bio, bio);
681 int SSL_set_wfd(SSL *s, int fd)
686 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
687 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) {
688 bio = BIO_new(BIO_s_socket());
691 SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB);
694 BIO_set_fd(bio, fd, BIO_NOCLOSE);
695 SSL_set_bio(s, SSL_get_rbio(s), bio);
697 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s));
703 int SSL_set_rfd(SSL *s, int fd)
708 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
709 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) {
710 bio = BIO_new(BIO_s_socket());
713 SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB);
716 BIO_set_fd(bio, fd, BIO_NOCLOSE);
717 SSL_set_bio(s, bio, SSL_get_wbio(s));
719 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s));
726 /* return length of latest Finished message we sent, copy to 'buf' */
727 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
732 ret = s->s3->tmp.finish_md_len;
735 memcpy(buf, s->s3->tmp.finish_md, count);
740 /* return length of latest Finished message we expected, copy to 'buf' */
741 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
746 ret = s->s3->tmp.peer_finish_md_len;
749 memcpy(buf, s->s3->tmp.peer_finish_md, count);
754 int SSL_get_verify_mode(const SSL *s)
756 return (s->verify_mode);
759 int SSL_get_verify_depth(const SSL *s)
761 return X509_VERIFY_PARAM_get_depth(s->param);
764 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
765 return (s->verify_callback);
768 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
770 return (ctx->verify_mode);
773 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
775 return X509_VERIFY_PARAM_get_depth(ctx->param);
778 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
779 return (ctx->default_verify_callback);
782 void SSL_set_verify(SSL *s, int mode,
783 int (*callback) (int ok, X509_STORE_CTX *ctx))
785 s->verify_mode = mode;
786 if (callback != NULL)
787 s->verify_callback = callback;
790 void SSL_set_verify_depth(SSL *s, int depth)
792 X509_VERIFY_PARAM_set_depth(s->param, depth);
795 void SSL_set_read_ahead(SSL *s, int yes)
797 RECORD_LAYER_set_read_ahead(&s->rlayer, yes);
800 int SSL_get_read_ahead(const SSL *s)
802 return RECORD_LAYER_get_read_ahead(&s->rlayer);
805 int SSL_pending(const SSL *s)
808 * SSL_pending cannot work properly if read-ahead is enabled
809 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
810 * impossible to fix since SSL_pending cannot report errors that may be
811 * observed while scanning the new data. (Note that SSL_pending() is
812 * often used as a boolean value, so we'd better not return -1.)
814 return (s->method->ssl_pending(s));
817 X509 *SSL_get_peer_certificate(const SSL *s)
821 if ((s == NULL) || (s->session == NULL))
824 r = s->session->peer;
834 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
838 if ((s == NULL) || (s->session == NULL))
841 r = s->session->peer_chain;
844 * If we are a client, cert_chain includes the peer's own certificate; if
845 * we are a server, it does not.
852 * Now in theory, since the calling process own 't' it should be safe to
853 * modify. We need to be able to read f without being hassled
855 int SSL_copy_session_id(SSL *t, const SSL *f)
857 /* Do we need to to SSL locking? */
858 if (!SSL_set_session(t, SSL_get_session(f))) {
863 * what if we are setup as SSLv2 but want to talk SSLv3 or vice-versa
865 if (t->method != f->method) {
866 t->method->ssl_free(t); /* cleanup current */
867 t->method = f->method; /* change method */
868 t->method->ssl_new(t); /* setup new */
871 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT);
872 ssl_cert_free(t->cert);
874 if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) {
881 /* Fix this so it checks all the valid key/cert options */
882 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
885 (ctx->cert->key->x509 == NULL)) {
886 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
887 SSL_R_NO_CERTIFICATE_ASSIGNED);
890 if (ctx->cert->key->privatekey == NULL) {
891 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
892 SSL_R_NO_PRIVATE_KEY_ASSIGNED);
895 return (X509_check_private_key
896 (ctx->cert->key->x509, ctx->cert->key->privatekey));
899 /* Fix this function so that it takes an optional type parameter */
900 int SSL_check_private_key(const SSL *ssl)
903 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
906 if (ssl->cert->key->x509 == NULL) {
907 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
910 if (ssl->cert->key->privatekey == NULL) {
911 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
914 return (X509_check_private_key(ssl->cert->key->x509,
915 ssl->cert->key->privatekey));
918 int SSL_accept(SSL *s)
920 if (s->handshake_func == 0)
921 /* Not properly initialized yet */
922 SSL_set_accept_state(s);
924 return (s->method->ssl_accept(s));
927 int SSL_connect(SSL *s)
929 if (s->handshake_func == 0)
930 /* Not properly initialized yet */
931 SSL_set_connect_state(s);
933 return (s->method->ssl_connect(s));
936 long SSL_get_default_timeout(const SSL *s)
938 return (s->method->get_timeout());
941 int SSL_read(SSL *s, void *buf, int num)
943 if (s->handshake_func == 0) {
944 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
948 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
949 s->rwstate = SSL_NOTHING;
952 return (s->method->ssl_read(s, buf, num));
955 int SSL_peek(SSL *s, void *buf, int num)
957 if (s->handshake_func == 0) {
958 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
962 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
965 return (s->method->ssl_peek(s, buf, num));
968 int SSL_write(SSL *s, const void *buf, int num)
970 if (s->handshake_func == 0) {
971 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
975 if (s->shutdown & SSL_SENT_SHUTDOWN) {
976 s->rwstate = SSL_NOTHING;
977 SSLerr(SSL_F_SSL_WRITE, SSL_R_PROTOCOL_IS_SHUTDOWN);
980 return (s->method->ssl_write(s, buf, num));
983 int SSL_shutdown(SSL *s)
986 * Note that this function behaves differently from what one might
987 * expect. Return values are 0 for no success (yet), 1 for success; but
988 * calling it once is usually not enough, even if blocking I/O is used
989 * (see ssl3_shutdown).
992 if (s->handshake_func == 0) {
993 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
997 if ((s != NULL) && !SSL_in_init(s))
998 return (s->method->ssl_shutdown(s));
1003 int SSL_renegotiate(SSL *s)
1005 if (s->renegotiate == 0)
1010 return (s->method->ssl_renegotiate(s));
1013 int SSL_renegotiate_abbreviated(SSL *s)
1015 if (s->renegotiate == 0)
1020 return (s->method->ssl_renegotiate(s));
1023 int SSL_renegotiate_pending(SSL *s)
1026 * becomes true when negotiation is requested; false again once a
1027 * handshake has finished
1029 return (s->renegotiate != 0);
1032 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
1037 case SSL_CTRL_GET_READ_AHEAD:
1038 return (RECORD_LAYER_get_read_ahead(&s->rlayer));
1039 case SSL_CTRL_SET_READ_AHEAD:
1040 l = RECORD_LAYER_get_read_ahead(&s->rlayer);
1041 RECORD_LAYER_set_read_ahead(&s->rlayer, larg);
1044 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1045 s->msg_callback_arg = parg;
1048 case SSL_CTRL_OPTIONS:
1049 return (s->options |= larg);
1050 case SSL_CTRL_CLEAR_OPTIONS:
1051 return (s->options &= ~larg);
1053 return (s->mode |= larg);
1054 case SSL_CTRL_CLEAR_MODE:
1055 return (s->mode &= ~larg);
1056 case SSL_CTRL_GET_MAX_CERT_LIST:
1057 return (s->max_cert_list);
1058 case SSL_CTRL_SET_MAX_CERT_LIST:
1059 l = s->max_cert_list;
1060 s->max_cert_list = larg;
1062 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1063 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1065 s->max_send_fragment = larg;
1067 case SSL_CTRL_GET_RI_SUPPORT:
1069 return s->s3->send_connection_binding;
1072 case SSL_CTRL_CERT_FLAGS:
1073 return (s->cert->cert_flags |= larg);
1074 case SSL_CTRL_CLEAR_CERT_FLAGS:
1075 return (s->cert->cert_flags &= ~larg);
1077 case SSL_CTRL_GET_RAW_CIPHERLIST:
1079 if (s->s3->tmp.ciphers_raw == NULL)
1081 *(unsigned char **)parg = s->s3->tmp.ciphers_raw;
1082 return (int)s->s3->tmp.ciphers_rawlen;
1084 return TLS_CIPHER_LEN;
1086 case SSL_CTRL_GET_EXTMS_SUPPORT:
1087 if (!s->session || SSL_in_init(s) || s->in_handshake)
1089 if (s->session->flags & SSL_SESS_FLAG_EXTMS)
1094 return (s->method->ssl_ctrl(s, cmd, larg, parg));
1098 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
1101 case SSL_CTRL_SET_MSG_CALLBACK:
1102 s->msg_callback = (void (*)
1103 (int write_p, int version, int content_type,
1104 const void *buf, size_t len, SSL *ssl,
1109 return (s->method->ssl_callback_ctrl(s, cmd, fp));
1113 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1115 return ctx->sessions;
1118 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
1121 /* For some cases with ctx == NULL perform syntax checks */
1124 #ifndef OPENSSL_NO_EC
1125 case SSL_CTRL_SET_CURVES_LIST:
1126 return tls1_set_curves_list(NULL, NULL, parg);
1128 case SSL_CTRL_SET_SIGALGS_LIST:
1129 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
1130 return tls1_set_sigalgs_list(NULL, parg, 0);
1137 case SSL_CTRL_GET_READ_AHEAD:
1138 return (ctx->read_ahead);
1139 case SSL_CTRL_SET_READ_AHEAD:
1140 l = ctx->read_ahead;
1141 ctx->read_ahead = larg;
1144 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1145 ctx->msg_callback_arg = parg;
1148 case SSL_CTRL_GET_MAX_CERT_LIST:
1149 return (ctx->max_cert_list);
1150 case SSL_CTRL_SET_MAX_CERT_LIST:
1151 l = ctx->max_cert_list;
1152 ctx->max_cert_list = larg;
1155 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1156 l = ctx->session_cache_size;
1157 ctx->session_cache_size = larg;
1159 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1160 return (ctx->session_cache_size);
1161 case SSL_CTRL_SET_SESS_CACHE_MODE:
1162 l = ctx->session_cache_mode;
1163 ctx->session_cache_mode = larg;
1165 case SSL_CTRL_GET_SESS_CACHE_MODE:
1166 return (ctx->session_cache_mode);
1168 case SSL_CTRL_SESS_NUMBER:
1169 return (lh_SSL_SESSION_num_items(ctx->sessions));
1170 case SSL_CTRL_SESS_CONNECT:
1171 return (ctx->stats.sess_connect);
1172 case SSL_CTRL_SESS_CONNECT_GOOD:
1173 return (ctx->stats.sess_connect_good);
1174 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1175 return (ctx->stats.sess_connect_renegotiate);
1176 case SSL_CTRL_SESS_ACCEPT:
1177 return (ctx->stats.sess_accept);
1178 case SSL_CTRL_SESS_ACCEPT_GOOD:
1179 return (ctx->stats.sess_accept_good);
1180 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1181 return (ctx->stats.sess_accept_renegotiate);
1182 case SSL_CTRL_SESS_HIT:
1183 return (ctx->stats.sess_hit);
1184 case SSL_CTRL_SESS_CB_HIT:
1185 return (ctx->stats.sess_cb_hit);
1186 case SSL_CTRL_SESS_MISSES:
1187 return (ctx->stats.sess_miss);
1188 case SSL_CTRL_SESS_TIMEOUTS:
1189 return (ctx->stats.sess_timeout);
1190 case SSL_CTRL_SESS_CACHE_FULL:
1191 return (ctx->stats.sess_cache_full);
1192 case SSL_CTRL_OPTIONS:
1193 return (ctx->options |= larg);
1194 case SSL_CTRL_CLEAR_OPTIONS:
1195 return (ctx->options &= ~larg);
1197 return (ctx->mode |= larg);
1198 case SSL_CTRL_CLEAR_MODE:
1199 return (ctx->mode &= ~larg);
1200 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1201 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1203 ctx->max_send_fragment = larg;
1205 case SSL_CTRL_CERT_FLAGS:
1206 return (ctx->cert->cert_flags |= larg);
1207 case SSL_CTRL_CLEAR_CERT_FLAGS:
1208 return (ctx->cert->cert_flags &= ~larg);
1210 return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg));
1214 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
1217 case SSL_CTRL_SET_MSG_CALLBACK:
1218 ctx->msg_callback = (void (*)
1219 (int write_p, int version, int content_type,
1220 const void *buf, size_t len, SSL *ssl,
1225 return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp));
1229 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1237 return ((l > 0) ? 1 : -1);
1240 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
1241 const SSL_CIPHER *const *bp)
1245 l = (*ap)->id - (*bp)->id;
1249 return ((l > 0) ? 1 : -1);
1252 /** return a STACK of the ciphers available for the SSL and in order of
1254 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1257 if (s->cipher_list != NULL) {
1258 return (s->cipher_list);
1259 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
1260 return (s->ctx->cipher_list);
1266 STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
1268 if ((s == NULL) || (s->session == NULL) || !s->server)
1270 return s->session->ciphers;
1273 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
1275 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
1277 ciphers = SSL_get_ciphers(s);
1280 ssl_set_client_disabled(s);
1281 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
1282 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
1283 if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED)) {
1285 sk = sk_SSL_CIPHER_new_null();
1288 if (!sk_SSL_CIPHER_push(sk, c)) {
1289 sk_SSL_CIPHER_free(sk);
1297 /** return a STACK of the ciphers available for the SSL and in order of
1299 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1302 if (s->cipher_list_by_id != NULL) {
1303 return (s->cipher_list_by_id);
1304 } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) {
1305 return (s->ctx->cipher_list_by_id);
1311 /** The old interface to get the same thing as SSL_get_ciphers() */
1312 const char *SSL_get_cipher_list(const SSL *s, int n)
1315 STACK_OF(SSL_CIPHER) *sk;
1319 sk = SSL_get_ciphers(s);
1320 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1322 c = sk_SSL_CIPHER_value(sk, n);
1328 /** specify the ciphers to be used by default by the SSL_CTX */
1329 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1331 STACK_OF(SSL_CIPHER) *sk;
1333 sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list,
1334 &ctx->cipher_list_by_id, str, ctx->cert);
1336 * ssl_create_cipher_list may return an empty stack if it was unable to
1337 * find a cipher matching the given rule string (for example if the rule
1338 * string specifies a cipher which has been disabled). This is not an
1339 * error as far as ssl_create_cipher_list is concerned, and hence
1340 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
1344 else if (sk_SSL_CIPHER_num(sk) == 0) {
1345 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1351 /** specify the ciphers to be used by the SSL */
1352 int SSL_set_cipher_list(SSL *s, const char *str)
1354 STACK_OF(SSL_CIPHER) *sk;
1356 sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list,
1357 &s->cipher_list_by_id, str, s->cert);
1358 /* see comment in SSL_CTX_set_cipher_list */
1361 else if (sk_SSL_CIPHER_num(sk) == 0) {
1362 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1368 /* works well for SSLv2, not so good for SSLv3 */
1369 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len)
1372 STACK_OF(SSL_CIPHER) *sk;
1376 if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2))
1380 sk = s->session->ciphers;
1382 if (sk_SSL_CIPHER_num(sk) == 0)
1385 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
1388 c = sk_SSL_CIPHER_value(sk, i);
1389 n = strlen(c->name);
1405 /** return a servername extension value if provided in Client Hello, or NULL.
1406 * So far, only host_name types are defined (RFC 3546).
1409 const char *SSL_get_servername(const SSL *s, const int type)
1411 if (type != TLSEXT_NAMETYPE_host_name)
1414 return s->session && !s->tlsext_hostname ?
1415 s->session->tlsext_hostname : s->tlsext_hostname;
1418 int SSL_get_servername_type(const SSL *s)
1421 && (!s->tlsext_hostname ? s->session->
1422 tlsext_hostname : s->tlsext_hostname))
1423 return TLSEXT_NAMETYPE_host_name;
1428 * SSL_select_next_proto implements the standard protocol selection. It is
1429 * expected that this function is called from the callback set by
1430 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
1431 * vector of 8-bit, length prefixed byte strings. The length byte itself is
1432 * not included in the length. A byte string of length 0 is invalid. No byte
1433 * string may be truncated. The current, but experimental algorithm for
1434 * selecting the protocol is: 1) If the server doesn't support NPN then this
1435 * is indicated to the callback. In this case, the client application has to
1436 * abort the connection or have a default application level protocol. 2) If
1437 * the server supports NPN, but advertises an empty list then the client
1438 * selects the first protcol in its list, but indicates via the API that this
1439 * fallback case was enacted. 3) Otherwise, the client finds the first
1440 * protocol in the server's list that it supports and selects this protocol.
1441 * This is because it's assumed that the server has better information about
1442 * which protocol a client should use. 4) If the client doesn't support any
1443 * of the server's advertised protocols, then this is treated the same as
1444 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
1445 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1447 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
1448 const unsigned char *server,
1449 unsigned int server_len,
1450 const unsigned char *client,
1451 unsigned int client_len)
1454 const unsigned char *result;
1455 int status = OPENSSL_NPN_UNSUPPORTED;
1458 * For each protocol in server preference order, see if we support it.
1460 for (i = 0; i < server_len;) {
1461 for (j = 0; j < client_len;) {
1462 if (server[i] == client[j] &&
1463 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
1464 /* We found a match */
1465 result = &server[i];
1466 status = OPENSSL_NPN_NEGOTIATED;
1476 /* There's no overlap between our protocols and the server's list. */
1478 status = OPENSSL_NPN_NO_OVERLAP;
1481 *out = (unsigned char *)result + 1;
1482 *outlen = result[0];
1486 #ifndef OPENSSL_NO_NEXTPROTONEG
1488 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
1489 * client's requested protocol for this connection and returns 0. If the
1490 * client didn't request any protocol, then *data is set to NULL. Note that
1491 * the client can request any protocol it chooses. The value returned from
1492 * this function need not be a member of the list of supported protocols
1493 * provided by the callback.
1495 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
1498 *data = s->next_proto_negotiated;
1502 *len = s->next_proto_negotiated_len;
1507 * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when
1508 * a TLS server needs a list of supported protocols for Next Protocol
1509 * Negotiation. The returned list must be in wire format. The list is
1510 * returned by setting |out| to point to it and |outlen| to its length. This
1511 * memory will not be modified, but one should assume that the SSL* keeps a
1512 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
1513 * wishes to advertise. Otherwise, no such extension will be included in the
1516 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx,
1517 int (*cb) (SSL *ssl,
1520 unsigned int *outlen,
1521 void *arg), void *arg)
1523 ctx->next_protos_advertised_cb = cb;
1524 ctx->next_protos_advertised_cb_arg = arg;
1528 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1529 * client needs to select a protocol from the server's provided list. |out|
1530 * must be set to point to the selected protocol (which may be within |in|).
1531 * The length of the protocol name must be written into |outlen|. The
1532 * server's advertised protocols are provided in |in| and |inlen|. The
1533 * callback can assume that |in| is syntactically valid. The client must
1534 * select a protocol. It is fatal to the connection if this callback returns
1535 * a value other than SSL_TLSEXT_ERR_OK.
1537 void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx,
1538 int (*cb) (SSL *s, unsigned char **out,
1539 unsigned char *outlen,
1540 const unsigned char *in,
1542 void *arg), void *arg)
1544 ctx->next_proto_select_cb = cb;
1545 ctx->next_proto_select_cb_arg = arg;
1550 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
1551 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1552 * length-prefixed strings). Returns 0 on success.
1554 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
1555 unsigned protos_len)
1557 OPENSSL_free(ctx->alpn_client_proto_list);
1558 ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1559 if (!ctx->alpn_client_proto_list)
1561 memcpy(ctx->alpn_client_proto_list, protos, protos_len);
1562 ctx->alpn_client_proto_list_len = protos_len;
1568 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
1569 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1570 * length-prefixed strings). Returns 0 on success.
1572 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
1573 unsigned protos_len)
1575 OPENSSL_free(ssl->alpn_client_proto_list);
1576 ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1577 if (!ssl->alpn_client_proto_list)
1579 memcpy(ssl->alpn_client_proto_list, protos, protos_len);
1580 ssl->alpn_client_proto_list_len = protos_len;
1586 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
1587 * called during ClientHello processing in order to select an ALPN protocol
1588 * from the client's list of offered protocols.
1590 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
1591 int (*cb) (SSL *ssl,
1592 const unsigned char **out,
1593 unsigned char *outlen,
1594 const unsigned char *in,
1596 void *arg), void *arg)
1598 ctx->alpn_select_cb = cb;
1599 ctx->alpn_select_cb_arg = arg;
1603 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from
1604 * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name
1605 * (not including the leading length-prefix byte). If the server didn't
1606 * respond with a negotiated protocol then |*len| will be zero.
1608 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
1613 *data = ssl->s3->alpn_selected;
1617 *len = ssl->s3->alpn_selected_len;
1621 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1622 const char *label, size_t llen,
1623 const unsigned char *p, size_t plen,
1626 if (s->version < TLS1_VERSION)
1629 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
1634 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1639 ((unsigned int)a->session_id[0]) |
1640 ((unsigned int)a->session_id[1] << 8L) |
1641 ((unsigned long)a->session_id[2] << 16L) |
1642 ((unsigned long)a->session_id[3] << 24L);
1647 * NB: If this function (or indeed the hash function which uses a sort of
1648 * coarser function than this one) is changed, ensure
1649 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
1650 * being able to construct an SSL_SESSION that will collide with any existing
1651 * session with a matching session ID.
1653 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
1655 if (a->ssl_version != b->ssl_version)
1657 if (a->session_id_length != b->session_id_length)
1659 return (memcmp(a->session_id, b->session_id, a->session_id_length));
1663 * These wrapper functions should remain rather than redeclaring
1664 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1665 * variable. The reason is that the functions aren't static, they're exposed
1668 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1669 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1671 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1673 SSL_CTX *ret = NULL;
1676 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED);
1680 if (FIPS_mode() && (meth->version < TLS1_VERSION)) {
1681 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1685 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
1686 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1689 ret = OPENSSL_zalloc(sizeof(*ret));
1694 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
1695 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1696 /* We take the system default. */
1697 ret->session_timeout = meth->get_timeout();
1698 ret->references = 1;
1699 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
1700 ret->verify_mode = SSL_VERIFY_NONE;
1701 if ((ret->cert = ssl_cert_new()) == NULL)
1704 ret->sessions = lh_SSL_SESSION_new();
1705 if (ret->sessions == NULL)
1707 ret->cert_store = X509_STORE_new();
1708 if (ret->cert_store == NULL)
1711 if (!ssl_create_cipher_list(ret->method,
1712 &ret->cipher_list, &ret->cipher_list_by_id,
1713 SSL_DEFAULT_CIPHER_LIST, ret->cert)
1714 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
1715 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);
1719 ret->param = X509_VERIFY_PARAM_new();
1723 if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {
1724 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1727 if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) {
1728 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1732 if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL)
1735 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1737 /* No compression for DTLS */
1738 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
1739 ret->comp_methods = SSL_COMP_get_compression_methods();
1741 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1743 /* Setup RFC4507 ticket keys */
1744 if ((RAND_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1745 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1746 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1747 ret->options |= SSL_OP_NO_TICKET;
1749 #ifndef OPENSSL_NO_SRP
1750 if (!SSL_CTX_SRP_CTX_init(ret))
1753 #ifndef OPENSSL_NO_ENGINE
1754 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1755 # define eng_strx(x) #x
1756 # define eng_str(x) eng_strx(x)
1757 /* Use specific client engine automatically... ignore errors */
1760 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1763 ENGINE_load_builtin_engines();
1764 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1766 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
1772 * Default is to connect to non-RI servers. When RI is more widely
1773 * deployed might change this.
1775 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
1779 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
1785 void SSL_CTX_free(SSL_CTX *a)
1792 i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_SSL_CTX);
1794 REF_PRINT("SSL_CTX", a);
1800 fprintf(stderr, "SSL_CTX_free, bad reference count\n");
1805 X509_VERIFY_PARAM_free(a->param);
1808 * Free internal session cache. However: the remove_cb() may reference
1809 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1810 * after the sessions were flushed.
1811 * As the ex_data handling routines might also touch the session cache,
1812 * the most secure solution seems to be: empty (flush) the cache, then
1813 * free ex_data, then finally free the cache.
1814 * (See ticket [openssl.org #212].)
1816 if (a->sessions != NULL)
1817 SSL_CTX_flush_sessions(a, 0);
1819 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1820 lh_SSL_SESSION_free(a->sessions);
1821 X509_STORE_free(a->cert_store);
1822 sk_SSL_CIPHER_free(a->cipher_list);
1823 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1824 ssl_cert_free(a->cert);
1825 sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free);
1826 sk_X509_pop_free(a->extra_certs, X509_free);
1827 a->comp_methods = NULL;
1828 #ifndef OPENSSL_NO_SRTP
1829 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
1831 #ifndef OPENSSL_NO_SRP
1832 SSL_CTX_SRP_CTX_free(a);
1834 #ifndef OPENSSL_NO_ENGINE
1835 if (a->client_cert_engine)
1836 ENGINE_finish(a->client_cert_engine);
1839 #ifndef OPENSSL_NO_EC
1840 OPENSSL_free(a->tlsext_ecpointformatlist);
1841 OPENSSL_free(a->tlsext_ellipticcurvelist);
1843 OPENSSL_free(a->alpn_client_proto_list);
1848 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1850 ctx->default_passwd_callback = cb;
1853 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
1855 ctx->default_passwd_callback_userdata = u;
1858 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
1859 int (*cb) (X509_STORE_CTX *, void *),
1862 ctx->app_verify_callback = cb;
1863 ctx->app_verify_arg = arg;
1866 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
1867 int (*cb) (int, X509_STORE_CTX *))
1869 ctx->verify_mode = mode;
1870 ctx->default_verify_callback = cb;
1873 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
1875 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
1878 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg),
1881 ssl_cert_set_cert_cb(c->cert, cb, arg);
1884 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
1886 ssl_cert_set_cert_cb(s->cert, cb, arg);
1889 void ssl_set_masks(SSL *s, const SSL_CIPHER *cipher)
1893 uint32_t *pvalid = s->s3->tmp.valid_flags;
1894 int rsa_enc, rsa_tmp, rsa_sign, dh_tmp, dh_rsa, dh_dsa, dsa_sign;
1895 int rsa_enc_export, dh_rsa_export, dh_dsa_export;
1896 int rsa_tmp_export, dh_tmp_export, kl;
1897 unsigned long mask_k, mask_a, emask_k, emask_a;
1898 #ifndef OPENSSL_NO_EC
1899 int have_ecc_cert, ecdsa_ok, ecc_pkey_size;
1900 int have_ecdh_tmp, ecdh_ok;
1902 EVP_PKEY *ecc_pkey = NULL;
1903 int pk_nid = 0, md_nid = 0;
1908 kl = SSL_C_EXPORT_PKEYLENGTH(cipher);
1910 #ifndef OPENSSL_NO_RSA
1911 rsa_tmp = (c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1912 rsa_tmp_export = (c->rsa_tmp_cb != NULL ||
1913 (rsa_tmp && RSA_size(c->rsa_tmp) * 8 <= kl));
1915 rsa_tmp = rsa_tmp_export = 0;
1917 #ifndef OPENSSL_NO_DH
1918 dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto);
1919 dh_tmp_export = !c->dh_tmp_auto && (c->dh_tmp_cb != NULL ||
1921 && DH_size(c->dh_tmp) * 8 <= kl));
1923 dh_tmp = dh_tmp_export = 0;
1926 #ifndef OPENSSL_NO_EC
1927 have_ecdh_tmp = (c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
1929 cpk = &(c->pkeys[SSL_PKEY_RSA_ENC]);
1930 rsa_enc = pvalid[SSL_PKEY_RSA_ENC] & CERT_PKEY_VALID;
1931 rsa_enc_export = (rsa_enc && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
1932 cpk = &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1933 rsa_sign = pvalid[SSL_PKEY_RSA_SIGN] & CERT_PKEY_SIGN;
1934 cpk = &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1935 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_SIGN;
1936 cpk = &(c->pkeys[SSL_PKEY_DH_RSA]);
1937 dh_rsa = pvalid[SSL_PKEY_DH_RSA] & CERT_PKEY_VALID;
1938 dh_rsa_export = (dh_rsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
1939 cpk = &(c->pkeys[SSL_PKEY_DH_DSA]);
1940 dh_dsa = pvalid[SSL_PKEY_DH_DSA] & CERT_PKEY_VALID;
1941 dh_dsa_export = (dh_dsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
1942 cpk = &(c->pkeys[SSL_PKEY_ECC]);
1943 #ifndef OPENSSL_NO_EC
1944 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
1953 "rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1954 rsa_tmp, rsa_tmp_export, dh_tmp, have_ecdh_tmp, rsa_enc,
1955 rsa_enc_export, rsa_sign, dsa_sign, dh_rsa, dh_dsa);
1958 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
1959 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
1960 mask_k |= SSL_kGOST;
1961 mask_a |= SSL_aGOST01;
1964 if (rsa_enc || (rsa_tmp && rsa_sign))
1966 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1967 emask_k |= SSL_kRSA;
1970 emask_k |= SSL_kDHE;
1978 emask_k |= SSL_kDHr;
1983 emask_k |= SSL_kDHd;
1985 if (mask_k & (SSL_kDHr | SSL_kDHd))
1988 if (rsa_enc || rsa_sign) {
1990 emask_a |= SSL_aRSA;
1995 emask_a |= SSL_aDSS;
1998 mask_a |= SSL_aNULL;
1999 emask_a |= SSL_aNULL;
2002 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
2003 * depending on the key usage extension.
2005 #ifndef OPENSSL_NO_EC
2006 if (have_ecc_cert) {
2008 cpk = &c->pkeys[SSL_PKEY_ECC];
2010 ex_kusage = X509_get_key_usage(x);
2011 ecdh_ok = ex_kusage & X509v3_KU_KEY_AGREEMENT;
2012 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
2013 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
2015 ecc_pkey = X509_get_pubkey(x);
2016 ecc_pkey_size = (ecc_pkey != NULL) ? EVP_PKEY_bits(ecc_pkey) : 0;
2017 EVP_PKEY_free(ecc_pkey);
2018 OBJ_find_sigid_algs(X509_get_signature_nid(x), &md_nid, &pk_nid);
2021 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa) {
2022 mask_k |= SSL_kECDHr;
2023 mask_a |= SSL_aECDH;
2024 if (ecc_pkey_size <= 163) {
2025 emask_k |= SSL_kECDHr;
2026 emask_a |= SSL_aECDH;
2030 if (pk_nid == NID_X9_62_id_ecPublicKey) {
2031 mask_k |= SSL_kECDHe;
2032 mask_a |= SSL_aECDH;
2033 if (ecc_pkey_size <= 163) {
2034 emask_k |= SSL_kECDHe;
2035 emask_a |= SSL_aECDH;
2040 mask_a |= SSL_aECDSA;
2041 emask_a |= SSL_aECDSA;
2046 #ifndef OPENSSL_NO_EC
2047 if (have_ecdh_tmp) {
2048 mask_k |= SSL_kECDHE;
2049 emask_k |= SSL_kECDHE;
2053 #ifndef OPENSSL_NO_PSK
2056 emask_k |= SSL_kPSK;
2057 emask_a |= SSL_aPSK;
2058 if (mask_k & SSL_kRSA)
2059 mask_k |= SSL_kRSAPSK;
2060 if (mask_k & SSL_kDHE)
2061 mask_k |= SSL_kDHEPSK;
2062 if (mask_k & SSL_kECDHE)
2063 mask_k |= SSL_kECDHEPSK;
2066 s->s3->tmp.mask_k = mask_k;
2067 s->s3->tmp.mask_a = mask_a;
2068 s->s3->tmp.export_mask_k = emask_k;
2069 s->s3->tmp.export_mask_a = emask_a;
2072 #ifndef OPENSSL_NO_EC
2074 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2076 unsigned long alg_k, alg_a;
2077 EVP_PKEY *pkey = NULL;
2079 int md_nid = 0, pk_nid = 0;
2080 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2081 uint32_t ex_kusage = X509_get_key_usage(x);
2083 alg_k = cs->algorithm_mkey;
2084 alg_a = cs->algorithm_auth;
2086 if (SSL_C_IS_EXPORT(cs)) {
2087 /* ECDH key length in export ciphers must be <= 163 bits */
2088 pkey = X509_get_pubkey(x);
2091 keysize = EVP_PKEY_bits(pkey);
2092 EVP_PKEY_free(pkey);
2097 OBJ_find_sigid_algs(X509_get_signature_nid(x), &md_nid, &pk_nid);
2099 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr) {
2100 /* key usage, if present, must allow key agreement */
2101 if (!(ex_kusage & X509v3_KU_KEY_AGREEMENT)) {
2102 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2103 SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2106 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION) {
2107 /* signature alg must be ECDSA */
2108 if (pk_nid != NID_X9_62_id_ecPublicKey) {
2109 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2110 SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2114 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION) {
2115 /* signature alg must be RSA */
2117 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa) {
2118 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2119 SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2124 if (alg_a & SSL_aECDSA) {
2125 /* key usage, if present, must allow signing */
2126 if (!(ex_kusage & X509v3_KU_DIGITAL_SIGNATURE)) {
2127 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2128 SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2133 return 1; /* all checks are ok */
2138 static int ssl_get_server_cert_index(const SSL *s)
2141 idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2142 if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2143 idx = SSL_PKEY_RSA_SIGN;
2145 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX, ERR_R_INTERNAL_ERROR);
2149 CERT_PKEY *ssl_get_server_send_pkey(SSL *s)
2155 if (!s->s3 || !s->s3->tmp.new_cipher)
2157 ssl_set_masks(s, s->s3->tmp.new_cipher);
2159 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2161 * Broken protocol test: return last used certificate: which may mismatch
2164 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2168 i = ssl_get_server_cert_index(s);
2170 /* This may or may not be an error. */
2175 return &c->pkeys[i];
2178 EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher,
2181 unsigned long alg_a;
2185 alg_a = cipher->algorithm_auth;
2188 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2190 * Broken protocol test: use last key: which may mismatch the one
2193 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2194 idx = c->key - c->pkeys;
2198 if ((alg_a & SSL_aDSS) &&
2199 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2200 idx = SSL_PKEY_DSA_SIGN;
2201 else if (alg_a & SSL_aRSA) {
2202 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2203 idx = SSL_PKEY_RSA_SIGN;
2204 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2205 idx = SSL_PKEY_RSA_ENC;
2206 } else if ((alg_a & SSL_aECDSA) &&
2207 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2210 SSLerr(SSL_F_SSL_GET_SIGN_PKEY, ERR_R_INTERNAL_ERROR);
2214 *pmd = s->s3->tmp.md[idx];
2215 return c->pkeys[idx].privatekey;
2218 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
2219 size_t *serverinfo_length)
2223 *serverinfo_length = 0;
2226 i = ssl_get_server_cert_index(s);
2230 if (c->pkeys[i].serverinfo == NULL)
2233 *serverinfo = c->pkeys[i].serverinfo;
2234 *serverinfo_length = c->pkeys[i].serverinfo_length;
2238 void ssl_update_cache(SSL *s, int mode)
2243 * If the session_id_length is 0, we are not supposed to cache it, and it
2244 * would be rather hard to do anyway :-)
2246 if (s->session->session_id_length == 0)
2249 i = s->session_ctx->session_cache_mode;
2250 if ((i & mode) && (!s->hit)
2251 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2252 || SSL_CTX_add_session(s->session_ctx, s->session))
2253 && (s->session_ctx->new_session_cb != NULL)) {
2254 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION);
2255 if (!s->session_ctx->new_session_cb(s, s->session))
2256 SSL_SESSION_free(s->session);
2259 /* auto flush every 255 connections */
2260 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
2261 if ((((mode & SSL_SESS_CACHE_CLIENT)
2262 ? s->session_ctx->stats.sess_connect_good
2263 : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) {
2264 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
2269 const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx)
2274 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2279 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2284 if (s->method != meth) {
2285 if (s->handshake_func != NULL)
2286 conn = (s->handshake_func == s->method->ssl_connect);
2288 if (s->method->version == meth->version)
2291 s->method->ssl_free(s);
2293 ret = s->method->ssl_new(s);
2297 s->handshake_func = meth->ssl_connect;
2299 s->handshake_func = meth->ssl_accept;
2304 int SSL_get_error(const SSL *s, int i)
2311 return (SSL_ERROR_NONE);
2314 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
2315 * where we do encode the error
2317 if ((l = ERR_peek_error()) != 0) {
2318 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2319 return (SSL_ERROR_SYSCALL);
2321 return (SSL_ERROR_SSL);
2324 if ((i < 0) && SSL_want_read(s)) {
2325 bio = SSL_get_rbio(s);
2326 if (BIO_should_read(bio))
2327 return (SSL_ERROR_WANT_READ);
2328 else if (BIO_should_write(bio))
2330 * This one doesn't make too much sense ... We never try to write
2331 * to the rbio, and an application program where rbio and wbio
2332 * are separate couldn't even know what it should wait for.
2333 * However if we ever set s->rwstate incorrectly (so that we have
2334 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
2335 * wbio *are* the same, this test works around that bug; so it
2336 * might be safer to keep it.
2338 return (SSL_ERROR_WANT_WRITE);
2339 else if (BIO_should_io_special(bio)) {
2340 reason = BIO_get_retry_reason(bio);
2341 if (reason == BIO_RR_CONNECT)
2342 return (SSL_ERROR_WANT_CONNECT);
2343 else if (reason == BIO_RR_ACCEPT)
2344 return (SSL_ERROR_WANT_ACCEPT);
2346 return (SSL_ERROR_SYSCALL); /* unknown */
2350 if ((i < 0) && SSL_want_write(s)) {
2351 bio = SSL_get_wbio(s);
2352 if (BIO_should_write(bio))
2353 return (SSL_ERROR_WANT_WRITE);
2354 else if (BIO_should_read(bio))
2356 * See above (SSL_want_read(s) with BIO_should_write(bio))
2358 return (SSL_ERROR_WANT_READ);
2359 else if (BIO_should_io_special(bio)) {
2360 reason = BIO_get_retry_reason(bio);
2361 if (reason == BIO_RR_CONNECT)
2362 return (SSL_ERROR_WANT_CONNECT);
2363 else if (reason == BIO_RR_ACCEPT)
2364 return (SSL_ERROR_WANT_ACCEPT);
2366 return (SSL_ERROR_SYSCALL);
2369 if ((i < 0) && SSL_want_x509_lookup(s)) {
2370 return (SSL_ERROR_WANT_X509_LOOKUP);
2374 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2375 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2376 return (SSL_ERROR_ZERO_RETURN);
2378 return (SSL_ERROR_SYSCALL);
2381 int SSL_do_handshake(SSL *s)
2385 if (s->handshake_func == NULL) {
2386 SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET);
2390 s->method->ssl_renegotiate_check(s);
2392 if (SSL_in_init(s) || SSL_in_before(s)) {
2393 ret = s->handshake_func(s);
2398 void SSL_set_accept_state(SSL *s)
2402 s->state = SSL_ST_ACCEPT | SSL_ST_BEFORE;
2403 s->handshake_func = s->method->ssl_accept;
2407 void SSL_set_connect_state(SSL *s)
2411 s->state = SSL_ST_CONNECT | SSL_ST_BEFORE;
2412 s->handshake_func = s->method->ssl_connect;
2416 int ssl_undefined_function(SSL *s)
2418 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2422 int ssl_undefined_void_function(void)
2424 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,
2425 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2429 int ssl_undefined_const_function(const SSL *s)
2431 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,
2432 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2436 SSL_METHOD *ssl_bad_method(int ver)
2438 SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2442 const char *SSL_get_version(const SSL *s)
2444 if (s->version == TLS1_2_VERSION)
2446 else if (s->version == TLS1_1_VERSION)
2448 else if (s->version == TLS1_VERSION)
2450 else if (s->version == SSL3_VERSION)
2452 else if (s->version == DTLS1_BAD_VER)
2453 return ("DTLSv0.9");
2454 else if (s->version == DTLS1_VERSION)
2456 else if (s->version == DTLS1_2_VERSION)
2457 return ("DTLSv1.2");
2462 SSL *SSL_dup(SSL *s)
2464 STACK_OF(X509_NAME) *sk;
2469 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2472 ret->version = s->version;
2473 ret->type = s->type;
2474 ret->method = s->method;
2476 if (s->session != NULL) {
2477 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2478 if (!SSL_copy_session_id(ret, s))
2482 * No session has been established yet, so we have to expect that
2483 * s->cert or ret->cert will be changed later -- they should not both
2484 * point to the same object, and thus we can't use
2485 * SSL_copy_session_id.
2488 ret->method->ssl_free(ret);
2489 ret->method = s->method;
2490 ret->method->ssl_new(ret);
2492 if (s->cert != NULL) {
2493 ssl_cert_free(ret->cert);
2494 ret->cert = ssl_cert_dup(s->cert);
2495 if (ret->cert == NULL)
2499 if (!SSL_set_session_id_context(ret, s->sid_ctx, s->sid_ctx_length))
2503 ret->options = s->options;
2504 ret->mode = s->mode;
2505 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
2506 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
2507 ret->msg_callback = s->msg_callback;
2508 ret->msg_callback_arg = s->msg_callback_arg;
2509 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
2510 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
2511 ret->generate_session_id = s->generate_session_id;
2513 SSL_set_info_callback(ret, SSL_get_info_callback(s));
2515 ret->debug = s->debug;
2517 /* copy app data, a little dangerous perhaps */
2518 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2521 /* setup rbio, and wbio */
2522 if (s->rbio != NULL) {
2523 if (!BIO_dup_state(s->rbio, (char *)&ret->rbio))
2526 if (s->wbio != NULL) {
2527 if (s->wbio != s->rbio) {
2528 if (!BIO_dup_state(s->wbio, (char *)&ret->wbio))
2531 ret->wbio = ret->rbio;
2533 ret->rwstate = s->rwstate;
2534 ret->in_handshake = s->in_handshake;
2535 ret->handshake_func = s->handshake_func;
2536 ret->server = s->server;
2537 ret->renegotiate = s->renegotiate;
2538 ret->new_session = s->new_session;
2539 ret->quiet_shutdown = s->quiet_shutdown;
2540 ret->shutdown = s->shutdown;
2541 ret->state = s->state; /* SSL_dup does not really work at any state,
2543 RECORD_LAYER_dup(&ret->rlayer, &s->rlayer);
2544 ret->init_num = 0; /* would have to copy ret->init_buf,
2545 * ret->init_msg, ret->init_num,
2549 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2551 /* dup the cipher_list and cipher_list_by_id stacks */
2552 if (s->cipher_list != NULL) {
2553 if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2556 if (s->cipher_list_by_id != NULL)
2557 if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2561 /* Dup the client_CA list */
2562 if (s->client_CA != NULL) {
2563 if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL)
2565 ret->client_CA = sk;
2566 for (i = 0; i < sk_X509_NAME_num(sk); i++) {
2567 xn = sk_X509_NAME_value(sk, i);
2568 if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) {
2581 void ssl_clear_cipher_ctx(SSL *s)
2583 if (s->enc_read_ctx != NULL) {
2584 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2585 OPENSSL_free(s->enc_read_ctx);
2586 s->enc_read_ctx = NULL;
2588 if (s->enc_write_ctx != NULL) {
2589 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2590 OPENSSL_free(s->enc_write_ctx);
2591 s->enc_write_ctx = NULL;
2593 #ifndef OPENSSL_NO_COMP
2594 COMP_CTX_free(s->expand);
2596 COMP_CTX_free(s->compress);
2601 X509 *SSL_get_certificate(const SSL *s)
2603 if (s->cert != NULL)
2604 return (s->cert->key->x509);
2609 EVP_PKEY *SSL_get_privatekey(const SSL *s)
2611 if (s->cert != NULL)
2612 return (s->cert->key->privatekey);
2617 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
2619 if (ctx->cert != NULL)
2620 return ctx->cert->key->x509;
2625 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
2627 if (ctx->cert != NULL)
2628 return ctx->cert->key->privatekey;
2633 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2635 if ((s->session != NULL) && (s->session->cipher != NULL))
2636 return (s->session->cipher);
2640 const COMP_METHOD *SSL_get_current_compression(SSL *s)
2642 #ifndef OPENSSL_NO_COMP
2643 return s->compress ? COMP_CTX_get_method(s->compress) : NULL;
2649 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2651 #ifndef OPENSSL_NO_COMP
2652 return s->expand ? COMP_CTX_get_method(s->expand) : NULL;
2658 int ssl_init_wbio_buffer(SSL *s, int push)
2662 if (s->bbio == NULL) {
2663 bbio = BIO_new(BIO_f_buffer());
2669 if (s->bbio == s->wbio)
2670 s->wbio = BIO_pop(s->wbio);
2672 (void)BIO_reset(bbio);
2673 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2674 if (!BIO_set_read_buffer_size(bbio, 1)) {
2675 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB);
2679 if (s->wbio != bbio)
2680 s->wbio = BIO_push(bbio, s->wbio);
2682 if (s->wbio == bbio)
2683 s->wbio = BIO_pop(bbio);
2688 void ssl_free_wbio_buffer(SSL *s)
2690 /* callers ensure s is never null */
2691 if (s->bbio == NULL)
2694 if (s->bbio == s->wbio) {
2695 /* remove buffering */
2696 s->wbio = BIO_pop(s->wbio);
2697 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids
2698 * adding one more preprocessor symbol */
2699 assert(s->wbio != NULL);
2706 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
2708 ctx->quiet_shutdown = mode;
2711 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2713 return (ctx->quiet_shutdown);
2716 void SSL_set_quiet_shutdown(SSL *s, int mode)
2718 s->quiet_shutdown = mode;
2721 int SSL_get_quiet_shutdown(const SSL *s)
2723 return (s->quiet_shutdown);
2726 void SSL_set_shutdown(SSL *s, int mode)
2731 int SSL_get_shutdown(const SSL *s)
2733 return (s->shutdown);
2736 int SSL_version(const SSL *s)
2738 return (s->version);
2741 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2746 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
2749 if (ssl->ctx == ctx)
2752 ctx = ssl->initial_ctx;
2753 new_cert = ssl_cert_dup(ctx->cert);
2754 if (new_cert == NULL) {
2757 ssl_cert_free(ssl->cert);
2758 ssl->cert = new_cert;
2761 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
2762 * so setter APIs must prevent invalid lengths from entering the system.
2764 OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx));
2767 * If the session ID context matches that of the parent SSL_CTX,
2768 * inherit it from the new SSL_CTX as well. If however the context does
2769 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
2770 * leave it unchanged.
2772 if ((ssl->ctx != NULL) &&
2773 (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
2774 (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) {
2775 ssl->sid_ctx_length = ctx->sid_ctx_length;
2776 memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx));
2779 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
2780 SSL_CTX_free(ssl->ctx); /* decrement reference count */
2786 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2788 return (X509_STORE_set_default_paths(ctx->cert_store));
2791 int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
2793 X509_LOOKUP *lookup;
2795 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
2798 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
2800 /* Clear any errors if the default directory does not exist */
2806 int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
2808 X509_LOOKUP *lookup;
2810 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
2814 X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
2816 /* Clear any errors if the default file does not exist */
2822 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2825 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath));
2828 void SSL_set_info_callback(SSL *ssl,
2829 void (*cb) (const SSL *ssl, int type, int val))
2831 ssl->info_callback = cb;
2835 * One compiler (Diab DCC) doesn't like argument names in returned function
2838 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
2841 return ssl->info_callback;
2844 int SSL_state(const SSL *ssl)
2846 return (ssl->state);
2849 void SSL_set_state(SSL *ssl, int state)
2854 void SSL_set_verify_result(SSL *ssl, long arg)
2856 ssl->verify_result = arg;
2859 long SSL_get_verify_result(const SSL *ssl)
2861 return (ssl->verify_result);
2864 size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
2867 return sizeof(ssl->s3->client_random);
2868 if (outlen > sizeof(ssl->s3->client_random))
2869 outlen = sizeof(ssl->s3->client_random);
2870 memcpy(out, ssl->s3->client_random, outlen);
2874 size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
2877 return sizeof(ssl->s3->server_random);
2878 if (outlen > sizeof(ssl->s3->server_random))
2879 outlen = sizeof(ssl->s3->server_random);
2880 memcpy(out, ssl->s3->server_random, outlen);
2884 size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
2885 unsigned char *out, size_t outlen)
2887 if (session->master_key_length < 0) {
2888 /* Should never happen */
2892 return session->master_key_length;
2893 if (outlen > (size_t)session->master_key_length)
2894 outlen = session->master_key_length;
2895 memcpy(out, session->master_key, outlen);
2899 int SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
2900 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
2902 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2903 new_func, dup_func, free_func);
2906 int SSL_set_ex_data(SSL *s, int idx, void *arg)
2908 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
2911 void *SSL_get_ex_data(const SSL *s, int idx)
2913 return (CRYPTO_get_ex_data(&s->ex_data, idx));
2916 int SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
2917 CRYPTO_EX_dup *dup_func,
2918 CRYPTO_EX_free *free_func)
2920 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2921 new_func, dup_func, free_func);
2924 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
2926 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
2929 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
2931 return (CRYPTO_get_ex_data(&s->ex_data, idx));
2939 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
2941 return (ctx->cert_store);
2944 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
2946 X509_STORE_free(ctx->cert_store);
2947 ctx->cert_store = store;
2950 int SSL_want(const SSL *s)
2952 return (s->rwstate);
2956 * \brief Set the callback for generating temporary RSA keys.
2957 * \param ctx the SSL context.
2958 * \param cb the callback
2961 #ifndef OPENSSL_NO_RSA
2962 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb) (SSL *ssl,
2966 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb);
2969 void SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb) (SSL *ssl,
2973 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb);
2979 * \brief The RSA temporary key callback function.
2980 * \param ssl the SSL session.
2981 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2982 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2983 * of the required key in bits.
2984 * \return the temporary RSA key.
2985 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2988 RSA *cb(SSL *ssl, int is_export, int keylength)
2994 * \brief Set the callback for generating temporary DH keys.
2995 * \param ctx the SSL context.
2996 * \param dh the callback
2999 #ifndef OPENSSL_NO_DH
3000 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
3001 DH *(*dh) (SSL *ssl, int is_export,
3004 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3007 void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export,
3010 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3014 #ifndef OPENSSL_NO_EC
3015 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,
3016 EC_KEY *(*ecdh) (SSL *ssl, int is_export,
3019 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB,
3020 (void (*)(void))ecdh);
3023 void SSL_set_tmp_ecdh_callback(SSL *ssl,
3024 EC_KEY *(*ecdh) (SSL *ssl, int is_export,
3027 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB, (void (*)(void))ecdh);
3031 #ifndef OPENSSL_NO_PSK
3032 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3034 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3035 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT,
3036 SSL_R_DATA_LENGTH_TOO_LONG);
3039 OPENSSL_free(ctx->cert->psk_identity_hint);
3040 if (identity_hint != NULL) {
3041 ctx->cert->psk_identity_hint = BUF_strdup(identity_hint);
3042 if (ctx->cert->psk_identity_hint == NULL)
3045 ctx->cert->psk_identity_hint = NULL;
3049 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3054 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3055 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3058 OPENSSL_free(s->cert->psk_identity_hint);
3059 if (identity_hint != NULL) {
3060 s->cert->psk_identity_hint = BUF_strdup(identity_hint);
3061 if (s->cert->psk_identity_hint == NULL)
3064 s->cert->psk_identity_hint = NULL;
3068 const char *SSL_get_psk_identity_hint(const SSL *s)
3070 if (s == NULL || s->session == NULL)
3072 return (s->session->psk_identity_hint);
3075 const char *SSL_get_psk_identity(const SSL *s)
3077 if (s == NULL || s->session == NULL)
3079 return (s->session->psk_identity);
3082 void SSL_set_psk_client_callback(SSL *s,
3083 unsigned int (*cb) (SSL *ssl,
3092 s->psk_client_callback = cb;
3095 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3096 unsigned int (*cb) (SSL *ssl,
3105 ctx->psk_client_callback = cb;
3108 void SSL_set_psk_server_callback(SSL *s,
3109 unsigned int (*cb) (SSL *ssl,
3110 const char *identity,
3115 s->psk_server_callback = cb;
3118 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3119 unsigned int (*cb) (SSL *ssl,
3120 const char *identity,
3125 ctx->psk_server_callback = cb;
3129 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
3130 void (*cb) (int write_p, int version,
3131 int content_type, const void *buf,
3132 size_t len, SSL *ssl, void *arg))
3134 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3137 void SSL_set_msg_callback(SSL *ssl,
3138 void (*cb) (int write_p, int version,
3139 int content_type, const void *buf,
3140 size_t len, SSL *ssl, void *arg))
3142 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3145 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
3146 int (*cb) (SSL *ssl,
3150 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3151 (void (*)(void))cb);
3154 void SSL_set_not_resumable_session_callback(SSL *ssl,
3155 int (*cb) (SSL *ssl,
3156 int is_forward_secure))
3158 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3159 (void (*)(void))cb);
3163 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3164 * vairable, freeing EVP_MD_CTX previously stored in that variable, if any.
3165 * If EVP_MD pointer is passed, initializes ctx with this md Returns newly
3169 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
3171 ssl_clear_hash_ctx(hash);
3172 *hash = EVP_MD_CTX_create();
3174 EVP_DigestInit_ex(*hash, md, NULL);
3178 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3182 EVP_MD_CTX_destroy(*hash);
3186 /* Retrieve handshake hashes */
3187 int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen)
3189 unsigned char *p = out;
3194 EVP_MD_CTX_init(&ctx);
3195 for (idx = 0; ssl_get_handshake_digest(idx, &mask, &md); idx++) {
3196 if (mask & ssl_get_algorithm2(s)) {
3197 int hashsize = EVP_MD_size(md);
3198 EVP_MD_CTX *hdgst = s->s3->handshake_dgst[idx];
3199 if (!hdgst || hashsize < 0 || hashsize > outlen)
3201 if (!EVP_MD_CTX_copy_ex(&ctx, hdgst))
3203 if (!EVP_DigestFinal_ex(&ctx, p, NULL))
3211 EVP_MD_CTX_cleanup(&ctx);
3215 void SSL_set_debug(SSL *s, int debug)
3220 int SSL_cache_hit(SSL *s)
3225 int SSL_is_server(SSL *s)
3230 void SSL_set_security_level(SSL *s, int level)
3232 s->cert->sec_level = level;
3235 int SSL_get_security_level(const SSL *s)
3237 return s->cert->sec_level;
3240 void SSL_set_security_callback(SSL *s,
3241 int (*cb) (SSL *s, SSL_CTX *ctx, int op,
3242 int bits, int nid, void *other,
3245 s->cert->sec_cb = cb;
3248 int (*SSL_get_security_callback(const SSL *s)) (SSL *s, SSL_CTX *ctx, int op,
3250 void *other, void *ex) {
3251 return s->cert->sec_cb;
3254 void SSL_set0_security_ex_data(SSL *s, void *ex)
3256 s->cert->sec_ex = ex;
3259 void *SSL_get0_security_ex_data(const SSL *s)
3261 return s->cert->sec_ex;
3264 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
3266 ctx->cert->sec_level = level;
3269 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
3271 return ctx->cert->sec_level;
3274 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
3275 int (*cb) (SSL *s, SSL_CTX *ctx, int op,
3276 int bits, int nid, void *other,
3279 ctx->cert->sec_cb = cb;
3282 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (SSL *s,
3288 return ctx->cert->sec_cb;
3291 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
3293 ctx->cert->sec_ex = ex;
3296 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
3298 return ctx->cert->sec_ex;
3301 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);