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);
218 ossl_statem_clear(s);
220 s->version = s->method->version;
221 s->client_version = s->version;
222 s->rwstate = SSL_NOTHING;
224 BUF_MEM_free(s->init_buf);
230 * Check to see if we were changed into a different method, if so, revert
231 * back if we are not doing session-id reuse.
233 if (!ossl_statem_get_in_handshake(s) && (s->session == NULL)
234 && (s->method != s->ctx->method)) {
235 s->method->ssl_free(s);
236 s->method = s->ctx->method;
237 if (!s->method->ssl_new(s))
240 s->method->ssl_clear(s);
242 RECORD_LAYER_clear(&s->rlayer);
247 /** Used to change an SSL_CTXs default SSL method type */
248 int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth)
250 STACK_OF(SSL_CIPHER) *sk;
254 sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list),
255 &(ctx->cipher_list_by_id),
256 SSL_DEFAULT_CIPHER_LIST, ctx->cert);
257 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) {
258 SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION,
259 SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS);
265 SSL *SSL_new(SSL_CTX *ctx)
270 SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX);
273 if (ctx->method == NULL) {
274 SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION);
278 s = OPENSSL_zalloc(sizeof(*s));
282 RECORD_LAYER_init(&s->rlayer, s);
284 s->options = ctx->options;
286 s->max_cert_list = ctx->max_cert_list;
290 * Earlier library versions used to copy the pointer to the CERT, not
291 * its contents; only when setting new parameters for the per-SSL
292 * copy, ssl_cert_new would be called (and the direct reference to
293 * the per-SSL_CTX settings would be lost, but those still were
294 * indirectly accessed for various purposes, and for that reason they
295 * used to be known as s->ctx->default_cert). Now we don't look at the
296 * SSL_CTX's CERT after having duplicated it once.
298 s->cert = ssl_cert_dup(ctx->cert);
302 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
303 s->msg_callback = ctx->msg_callback;
304 s->msg_callback_arg = ctx->msg_callback_arg;
305 s->verify_mode = ctx->verify_mode;
306 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
307 s->sid_ctx_length = ctx->sid_ctx_length;
308 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
309 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
310 s->verify_callback = ctx->default_verify_callback;
311 s->generate_session_id = ctx->generate_session_id;
313 s->param = X509_VERIFY_PARAM_new();
314 if (s->param == NULL)
316 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
317 s->quiet_shutdown = ctx->quiet_shutdown;
318 s->max_send_fragment = ctx->max_send_fragment;
320 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
322 s->tlsext_debug_cb = 0;
323 s->tlsext_debug_arg = NULL;
324 s->tlsext_ticket_expected = 0;
325 s->tlsext_status_type = -1;
326 s->tlsext_status_expected = 0;
327 s->tlsext_ocsp_ids = NULL;
328 s->tlsext_ocsp_exts = NULL;
329 s->tlsext_ocsp_resp = NULL;
330 s->tlsext_ocsp_resplen = -1;
331 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
332 s->initial_ctx = ctx;
333 # ifndef OPENSSL_NO_EC
334 if (ctx->tlsext_ecpointformatlist) {
335 s->tlsext_ecpointformatlist =
336 BUF_memdup(ctx->tlsext_ecpointformatlist,
337 ctx->tlsext_ecpointformatlist_length);
338 if (!s->tlsext_ecpointformatlist)
340 s->tlsext_ecpointformatlist_length =
341 ctx->tlsext_ecpointformatlist_length;
343 if (ctx->tlsext_ellipticcurvelist) {
344 s->tlsext_ellipticcurvelist =
345 BUF_memdup(ctx->tlsext_ellipticcurvelist,
346 ctx->tlsext_ellipticcurvelist_length);
347 if (!s->tlsext_ellipticcurvelist)
349 s->tlsext_ellipticcurvelist_length =
350 ctx->tlsext_ellipticcurvelist_length;
353 # ifndef OPENSSL_NO_NEXTPROTONEG
354 s->next_proto_negotiated = NULL;
357 if (s->ctx->alpn_client_proto_list) {
358 s->alpn_client_proto_list =
359 OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);
360 if (s->alpn_client_proto_list == NULL)
362 memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,
363 s->ctx->alpn_client_proto_list_len);
364 s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;
367 s->verify_result = X509_V_OK;
369 s->method = ctx->method;
371 if (!s->method->ssl_new(s))
374 s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;
379 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
381 #ifndef OPENSSL_NO_PSK
382 s->psk_client_callback = ctx->psk_client_callback;
383 s->psk_server_callback = ctx->psk_server_callback;
389 SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
393 int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
394 unsigned int sid_ctx_len)
396 if (sid_ctx_len > sizeof ctx->sid_ctx) {
397 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,
398 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
401 ctx->sid_ctx_length = sid_ctx_len;
402 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
407 int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
408 unsigned int sid_ctx_len)
410 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
411 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,
412 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
415 ssl->sid_ctx_length = sid_ctx_len;
416 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len);
421 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
423 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
424 ctx->generate_session_id = cb;
425 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
429 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
431 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
432 ssl->generate_session_id = cb;
433 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
437 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
441 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
442 * we can "construct" a session to give us the desired check - ie. to
443 * find if there's a session in the hash table that would conflict with
444 * any new session built out of this id/id_len and the ssl_version in use
449 if (id_len > sizeof r.session_id)
452 r.ssl_version = ssl->version;
453 r.session_id_length = id_len;
454 memcpy(r.session_id, id, id_len);
456 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
457 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
458 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
462 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
464 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
467 int SSL_set_purpose(SSL *s, int purpose)
469 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
472 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
474 return X509_VERIFY_PARAM_set_trust(s->param, trust);
477 int SSL_set_trust(SSL *s, int trust)
479 return X509_VERIFY_PARAM_set_trust(s->param, trust);
482 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
484 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
487 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
489 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
492 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
497 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
502 void SSL_certs_clear(SSL *s)
504 ssl_cert_clear_certs(s->cert);
507 void SSL_free(SSL *s)
514 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL);
522 fprintf(stderr, "SSL_free, bad reference count\n");
527 X509_VERIFY_PARAM_free(s->param);
528 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
530 if (s->bbio != NULL) {
531 /* If the buffering BIO is in place, pop it off */
532 if (s->bbio == s->wbio) {
533 s->wbio = BIO_pop(s->wbio);
538 BIO_free_all(s->rbio);
539 if (s->wbio != s->rbio)
540 BIO_free_all(s->wbio);
542 BUF_MEM_free(s->init_buf);
544 /* add extra stuff */
545 sk_SSL_CIPHER_free(s->cipher_list);
546 sk_SSL_CIPHER_free(s->cipher_list_by_id);
548 /* Make the next call work :-) */
549 if (s->session != NULL) {
550 ssl_clear_bad_session(s);
551 SSL_SESSION_free(s->session);
556 ssl_cert_free(s->cert);
557 /* Free up if allocated */
559 OPENSSL_free(s->tlsext_hostname);
560 SSL_CTX_free(s->initial_ctx);
561 #ifndef OPENSSL_NO_EC
562 OPENSSL_free(s->tlsext_ecpointformatlist);
563 OPENSSL_free(s->tlsext_ellipticcurvelist);
564 #endif /* OPENSSL_NO_EC */
565 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free);
566 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
567 OPENSSL_free(s->tlsext_ocsp_resp);
568 OPENSSL_free(s->alpn_client_proto_list);
570 sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free);
572 if (s->method != NULL)
573 s->method->ssl_free(s);
575 RECORD_LAYER_release(&s->rlayer);
577 SSL_CTX_free(s->ctx);
579 #if !defined(OPENSSL_NO_NEXTPROTONEG)
580 OPENSSL_free(s->next_proto_negotiated);
583 #ifndef OPENSSL_NO_SRTP
584 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
590 void SSL_set_rbio(SSL *s, BIO *rbio)
593 BIO_free_all(s->rbio);
597 void SSL_set_wbio(SSL *s, BIO *wbio)
600 * If the output buffering BIO is still in place, remove it
602 if (s->bbio != NULL) {
603 if (s->wbio == s->bbio) {
604 s->wbio = s->wbio->next_bio;
605 s->bbio->next_bio = NULL;
608 if (s->wbio != wbio && s->rbio != s->wbio)
609 BIO_free_all(s->wbio);
613 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
615 SSL_set_wbio(s, wbio);
616 SSL_set_rbio(s, rbio);
619 BIO *SSL_get_rbio(const SSL *s)
624 BIO *SSL_get_wbio(const SSL *s)
629 int SSL_get_fd(const SSL *s)
631 return (SSL_get_rfd(s));
634 int SSL_get_rfd(const SSL *s)
640 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
646 int SSL_get_wfd(const SSL *s)
652 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
658 #ifndef OPENSSL_NO_SOCK
659 int SSL_set_fd(SSL *s, int fd)
664 bio = BIO_new(BIO_s_socket());
667 SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB);
670 BIO_set_fd(bio, fd, BIO_NOCLOSE);
671 SSL_set_bio(s, bio, bio);
677 int SSL_set_wfd(SSL *s, int fd)
682 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
683 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) {
684 bio = BIO_new(BIO_s_socket());
687 SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB);
690 BIO_set_fd(bio, fd, BIO_NOCLOSE);
691 SSL_set_bio(s, SSL_get_rbio(s), bio);
693 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s));
699 int SSL_set_rfd(SSL *s, int fd)
704 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
705 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) {
706 bio = BIO_new(BIO_s_socket());
709 SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB);
712 BIO_set_fd(bio, fd, BIO_NOCLOSE);
713 SSL_set_bio(s, bio, SSL_get_wbio(s));
715 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s));
722 /* return length of latest Finished message we sent, copy to 'buf' */
723 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
728 ret = s->s3->tmp.finish_md_len;
731 memcpy(buf, s->s3->tmp.finish_md, count);
736 /* return length of latest Finished message we expected, copy to 'buf' */
737 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
742 ret = s->s3->tmp.peer_finish_md_len;
745 memcpy(buf, s->s3->tmp.peer_finish_md, count);
750 int SSL_get_verify_mode(const SSL *s)
752 return (s->verify_mode);
755 int SSL_get_verify_depth(const SSL *s)
757 return X509_VERIFY_PARAM_get_depth(s->param);
760 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
761 return (s->verify_callback);
764 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
766 return (ctx->verify_mode);
769 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
771 return X509_VERIFY_PARAM_get_depth(ctx->param);
774 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
775 return (ctx->default_verify_callback);
778 void SSL_set_verify(SSL *s, int mode,
779 int (*callback) (int ok, X509_STORE_CTX *ctx))
781 s->verify_mode = mode;
782 if (callback != NULL)
783 s->verify_callback = callback;
786 void SSL_set_verify_depth(SSL *s, int depth)
788 X509_VERIFY_PARAM_set_depth(s->param, depth);
791 void SSL_set_read_ahead(SSL *s, int yes)
793 RECORD_LAYER_set_read_ahead(&s->rlayer, yes);
796 int SSL_get_read_ahead(const SSL *s)
798 return RECORD_LAYER_get_read_ahead(&s->rlayer);
801 int SSL_pending(const SSL *s)
804 * SSL_pending cannot work properly if read-ahead is enabled
805 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
806 * impossible to fix since SSL_pending cannot report errors that may be
807 * observed while scanning the new data. (Note that SSL_pending() is
808 * often used as a boolean value, so we'd better not return -1.)
810 return (s->method->ssl_pending(s));
813 X509 *SSL_get_peer_certificate(const SSL *s)
817 if ((s == NULL) || (s->session == NULL))
820 r = s->session->peer;
830 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
834 if ((s == NULL) || (s->session == NULL))
837 r = s->session->peer_chain;
840 * If we are a client, cert_chain includes the peer's own certificate; if
841 * we are a server, it does not.
848 * Now in theory, since the calling process own 't' it should be safe to
849 * modify. We need to be able to read f without being hassled
851 int SSL_copy_session_id(SSL *t, const SSL *f)
853 /* Do we need to to SSL locking? */
854 if (!SSL_set_session(t, SSL_get_session(f))) {
859 * what if we are setup for one protocol version but want to talk another
861 if (t->method != f->method) {
862 t->method->ssl_free(t); /* cleanup current */
863 t->method = f->method; /* change method */
864 t->method->ssl_new(t); /* setup new */
867 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT);
868 ssl_cert_free(t->cert);
870 if (!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) {
877 /* Fix this so it checks all the valid key/cert options */
878 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
881 (ctx->cert->key->x509 == NULL)) {
882 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
883 SSL_R_NO_CERTIFICATE_ASSIGNED);
886 if (ctx->cert->key->privatekey == NULL) {
887 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
888 SSL_R_NO_PRIVATE_KEY_ASSIGNED);
891 return (X509_check_private_key
892 (ctx->cert->key->x509, ctx->cert->key->privatekey));
895 /* Fix this function so that it takes an optional type parameter */
896 int SSL_check_private_key(const SSL *ssl)
899 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
902 if (ssl->cert->key->x509 == NULL) {
903 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
906 if (ssl->cert->key->privatekey == NULL) {
907 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
910 return (X509_check_private_key(ssl->cert->key->x509,
911 ssl->cert->key->privatekey));
914 int SSL_accept(SSL *s)
916 if (s->handshake_func == 0)
917 /* Not properly initialized yet */
918 SSL_set_accept_state(s);
920 return (s->method->ssl_accept(s));
923 int SSL_connect(SSL *s)
925 if (s->handshake_func == 0)
926 /* Not properly initialized yet */
927 SSL_set_connect_state(s);
929 return (s->method->ssl_connect(s));
932 long SSL_get_default_timeout(const SSL *s)
934 return (s->method->get_timeout());
937 int SSL_read(SSL *s, void *buf, int num)
939 if (s->handshake_func == 0) {
940 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
944 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
945 s->rwstate = SSL_NOTHING;
948 return (s->method->ssl_read(s, buf, num));
951 int SSL_peek(SSL *s, void *buf, int num)
953 if (s->handshake_func == 0) {
954 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
958 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
961 return (s->method->ssl_peek(s, buf, num));
964 int SSL_write(SSL *s, const void *buf, int num)
966 if (s->handshake_func == 0) {
967 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
971 if (s->shutdown & SSL_SENT_SHUTDOWN) {
972 s->rwstate = SSL_NOTHING;
973 SSLerr(SSL_F_SSL_WRITE, SSL_R_PROTOCOL_IS_SHUTDOWN);
976 return (s->method->ssl_write(s, buf, num));
979 int SSL_shutdown(SSL *s)
982 * Note that this function behaves differently from what one might
983 * expect. Return values are 0 for no success (yet), 1 for success; but
984 * calling it once is usually not enough, even if blocking I/O is used
985 * (see ssl3_shutdown).
988 if (s->handshake_func == 0) {
989 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
994 return (s->method->ssl_shutdown(s));
999 int SSL_renegotiate(SSL *s)
1001 if (s->renegotiate == 0)
1006 return (s->method->ssl_renegotiate(s));
1009 int SSL_renegotiate_abbreviated(SSL *s)
1011 if (s->renegotiate == 0)
1016 return (s->method->ssl_renegotiate(s));
1019 int SSL_renegotiate_pending(SSL *s)
1022 * becomes true when negotiation is requested; false again once a
1023 * handshake has finished
1025 return (s->renegotiate != 0);
1028 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
1033 case SSL_CTRL_GET_READ_AHEAD:
1034 return (RECORD_LAYER_get_read_ahead(&s->rlayer));
1035 case SSL_CTRL_SET_READ_AHEAD:
1036 l = RECORD_LAYER_get_read_ahead(&s->rlayer);
1037 RECORD_LAYER_set_read_ahead(&s->rlayer, larg);
1040 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1041 s->msg_callback_arg = parg;
1044 case SSL_CTRL_OPTIONS:
1045 return (s->options |= larg);
1046 case SSL_CTRL_CLEAR_OPTIONS:
1047 return (s->options &= ~larg);
1049 return (s->mode |= larg);
1050 case SSL_CTRL_CLEAR_MODE:
1051 return (s->mode &= ~larg);
1052 case SSL_CTRL_GET_MAX_CERT_LIST:
1053 return (s->max_cert_list);
1054 case SSL_CTRL_SET_MAX_CERT_LIST:
1055 l = s->max_cert_list;
1056 s->max_cert_list = larg;
1058 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1059 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1061 s->max_send_fragment = larg;
1063 case SSL_CTRL_GET_RI_SUPPORT:
1065 return s->s3->send_connection_binding;
1068 case SSL_CTRL_CERT_FLAGS:
1069 return (s->cert->cert_flags |= larg);
1070 case SSL_CTRL_CLEAR_CERT_FLAGS:
1071 return (s->cert->cert_flags &= ~larg);
1073 case SSL_CTRL_GET_RAW_CIPHERLIST:
1075 if (s->s3->tmp.ciphers_raw == NULL)
1077 *(unsigned char **)parg = s->s3->tmp.ciphers_raw;
1078 return (int)s->s3->tmp.ciphers_rawlen;
1080 return TLS_CIPHER_LEN;
1082 case SSL_CTRL_GET_EXTMS_SUPPORT:
1083 if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s))
1085 if (s->session->flags & SSL_SESS_FLAG_EXTMS)
1090 return (s->method->ssl_ctrl(s, cmd, larg, parg));
1094 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
1097 case SSL_CTRL_SET_MSG_CALLBACK:
1098 s->msg_callback = (void (*)
1099 (int write_p, int version, int content_type,
1100 const void *buf, size_t len, SSL *ssl,
1105 return (s->method->ssl_callback_ctrl(s, cmd, fp));
1109 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1111 return ctx->sessions;
1114 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
1117 /* For some cases with ctx == NULL perform syntax checks */
1120 #ifndef OPENSSL_NO_EC
1121 case SSL_CTRL_SET_CURVES_LIST:
1122 return tls1_set_curves_list(NULL, NULL, parg);
1124 case SSL_CTRL_SET_SIGALGS_LIST:
1125 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
1126 return tls1_set_sigalgs_list(NULL, parg, 0);
1133 case SSL_CTRL_GET_READ_AHEAD:
1134 return (ctx->read_ahead);
1135 case SSL_CTRL_SET_READ_AHEAD:
1136 l = ctx->read_ahead;
1137 ctx->read_ahead = larg;
1140 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1141 ctx->msg_callback_arg = parg;
1144 case SSL_CTRL_GET_MAX_CERT_LIST:
1145 return (ctx->max_cert_list);
1146 case SSL_CTRL_SET_MAX_CERT_LIST:
1147 l = ctx->max_cert_list;
1148 ctx->max_cert_list = larg;
1151 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1152 l = ctx->session_cache_size;
1153 ctx->session_cache_size = larg;
1155 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1156 return (ctx->session_cache_size);
1157 case SSL_CTRL_SET_SESS_CACHE_MODE:
1158 l = ctx->session_cache_mode;
1159 ctx->session_cache_mode = larg;
1161 case SSL_CTRL_GET_SESS_CACHE_MODE:
1162 return (ctx->session_cache_mode);
1164 case SSL_CTRL_SESS_NUMBER:
1165 return (lh_SSL_SESSION_num_items(ctx->sessions));
1166 case SSL_CTRL_SESS_CONNECT:
1167 return (ctx->stats.sess_connect);
1168 case SSL_CTRL_SESS_CONNECT_GOOD:
1169 return (ctx->stats.sess_connect_good);
1170 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1171 return (ctx->stats.sess_connect_renegotiate);
1172 case SSL_CTRL_SESS_ACCEPT:
1173 return (ctx->stats.sess_accept);
1174 case SSL_CTRL_SESS_ACCEPT_GOOD:
1175 return (ctx->stats.sess_accept_good);
1176 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1177 return (ctx->stats.sess_accept_renegotiate);
1178 case SSL_CTRL_SESS_HIT:
1179 return (ctx->stats.sess_hit);
1180 case SSL_CTRL_SESS_CB_HIT:
1181 return (ctx->stats.sess_cb_hit);
1182 case SSL_CTRL_SESS_MISSES:
1183 return (ctx->stats.sess_miss);
1184 case SSL_CTRL_SESS_TIMEOUTS:
1185 return (ctx->stats.sess_timeout);
1186 case SSL_CTRL_SESS_CACHE_FULL:
1187 return (ctx->stats.sess_cache_full);
1188 case SSL_CTRL_OPTIONS:
1189 return (ctx->options |= larg);
1190 case SSL_CTRL_CLEAR_OPTIONS:
1191 return (ctx->options &= ~larg);
1193 return (ctx->mode |= larg);
1194 case SSL_CTRL_CLEAR_MODE:
1195 return (ctx->mode &= ~larg);
1196 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1197 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1199 ctx->max_send_fragment = larg;
1201 case SSL_CTRL_CERT_FLAGS:
1202 return (ctx->cert->cert_flags |= larg);
1203 case SSL_CTRL_CLEAR_CERT_FLAGS:
1204 return (ctx->cert->cert_flags &= ~larg);
1206 return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg));
1210 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
1213 case SSL_CTRL_SET_MSG_CALLBACK:
1214 ctx->msg_callback = (void (*)
1215 (int write_p, int version, int content_type,
1216 const void *buf, size_t len, SSL *ssl,
1221 return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp));
1225 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1234 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
1235 const SSL_CIPHER *const *bp)
1237 if ((*ap)->id > (*bp)->id)
1239 if ((*ap)->id < (*bp)->id)
1244 /** return a STACK of the ciphers available for the SSL and in order of
1246 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1249 if (s->cipher_list != NULL) {
1250 return (s->cipher_list);
1251 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
1252 return (s->ctx->cipher_list);
1258 STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s)
1260 if ((s == NULL) || (s->session == NULL) || !s->server)
1262 return s->session->ciphers;
1265 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
1267 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
1269 ciphers = SSL_get_ciphers(s);
1272 ssl_set_client_disabled(s);
1273 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
1274 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
1275 if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED)) {
1277 sk = sk_SSL_CIPHER_new_null();
1280 if (!sk_SSL_CIPHER_push(sk, c)) {
1281 sk_SSL_CIPHER_free(sk);
1289 /** return a STACK of the ciphers available for the SSL and in order of
1291 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1294 if (s->cipher_list_by_id != NULL) {
1295 return (s->cipher_list_by_id);
1296 } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) {
1297 return (s->ctx->cipher_list_by_id);
1303 /** The old interface to get the same thing as SSL_get_ciphers() */
1304 const char *SSL_get_cipher_list(const SSL *s, int n)
1307 STACK_OF(SSL_CIPHER) *sk;
1311 sk = SSL_get_ciphers(s);
1312 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1314 c = sk_SSL_CIPHER_value(sk, n);
1320 /** specify the ciphers to be used by default by the SSL_CTX */
1321 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1323 STACK_OF(SSL_CIPHER) *sk;
1325 sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list,
1326 &ctx->cipher_list_by_id, str, ctx->cert);
1328 * ssl_create_cipher_list may return an empty stack if it was unable to
1329 * find a cipher matching the given rule string (for example if the rule
1330 * string specifies a cipher which has been disabled). This is not an
1331 * error as far as ssl_create_cipher_list is concerned, and hence
1332 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
1336 else if (sk_SSL_CIPHER_num(sk) == 0) {
1337 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1343 /** specify the ciphers to be used by the SSL */
1344 int SSL_set_cipher_list(SSL *s, const char *str)
1346 STACK_OF(SSL_CIPHER) *sk;
1348 sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list,
1349 &s->cipher_list_by_id, str, s->cert);
1350 /* see comment in SSL_CTX_set_cipher_list */
1353 else if (sk_SSL_CIPHER_num(sk) == 0) {
1354 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1360 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len)
1363 STACK_OF(SSL_CIPHER) *sk;
1367 if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2))
1371 sk = s->session->ciphers;
1373 if (sk_SSL_CIPHER_num(sk) == 0)
1376 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
1379 c = sk_SSL_CIPHER_value(sk, i);
1380 n = strlen(c->name);
1396 /** return a servername extension value if provided in Client Hello, or NULL.
1397 * So far, only host_name types are defined (RFC 3546).
1400 const char *SSL_get_servername(const SSL *s, const int type)
1402 if (type != TLSEXT_NAMETYPE_host_name)
1405 return s->session && !s->tlsext_hostname ?
1406 s->session->tlsext_hostname : s->tlsext_hostname;
1409 int SSL_get_servername_type(const SSL *s)
1412 && (!s->tlsext_hostname ? s->session->
1413 tlsext_hostname : s->tlsext_hostname))
1414 return TLSEXT_NAMETYPE_host_name;
1419 * SSL_select_next_proto implements the standard protocol selection. It is
1420 * expected that this function is called from the callback set by
1421 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
1422 * vector of 8-bit, length prefixed byte strings. The length byte itself is
1423 * not included in the length. A byte string of length 0 is invalid. No byte
1424 * string may be truncated. The current, but experimental algorithm for
1425 * selecting the protocol is: 1) If the server doesn't support NPN then this
1426 * is indicated to the callback. In this case, the client application has to
1427 * abort the connection or have a default application level protocol. 2) If
1428 * the server supports NPN, but advertises an empty list then the client
1429 * selects the first protcol in its list, but indicates via the API that this
1430 * fallback case was enacted. 3) Otherwise, the client finds the first
1431 * protocol in the server's list that it supports and selects this protocol.
1432 * This is because it's assumed that the server has better information about
1433 * which protocol a client should use. 4) If the client doesn't support any
1434 * of the server's advertised protocols, then this is treated the same as
1435 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
1436 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1438 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
1439 const unsigned char *server,
1440 unsigned int server_len,
1441 const unsigned char *client,
1442 unsigned int client_len)
1445 const unsigned char *result;
1446 int status = OPENSSL_NPN_UNSUPPORTED;
1449 * For each protocol in server preference order, see if we support it.
1451 for (i = 0; i < server_len;) {
1452 for (j = 0; j < client_len;) {
1453 if (server[i] == client[j] &&
1454 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
1455 /* We found a match */
1456 result = &server[i];
1457 status = OPENSSL_NPN_NEGOTIATED;
1467 /* There's no overlap between our protocols and the server's list. */
1469 status = OPENSSL_NPN_NO_OVERLAP;
1472 *out = (unsigned char *)result + 1;
1473 *outlen = result[0];
1477 #ifndef OPENSSL_NO_NEXTPROTONEG
1479 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
1480 * client's requested protocol for this connection and returns 0. If the
1481 * client didn't request any protocol, then *data is set to NULL. Note that
1482 * the client can request any protocol it chooses. The value returned from
1483 * this function need not be a member of the list of supported protocols
1484 * provided by the callback.
1486 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
1489 *data = s->next_proto_negotiated;
1493 *len = s->next_proto_negotiated_len;
1498 * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when
1499 * a TLS server needs a list of supported protocols for Next Protocol
1500 * Negotiation. The returned list must be in wire format. The list is
1501 * returned by setting |out| to point to it and |outlen| to its length. This
1502 * memory will not be modified, but one should assume that the SSL* keeps a
1503 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
1504 * wishes to advertise. Otherwise, no such extension will be included in the
1507 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx,
1508 int (*cb) (SSL *ssl,
1511 unsigned int *outlen,
1512 void *arg), void *arg)
1514 ctx->next_protos_advertised_cb = cb;
1515 ctx->next_protos_advertised_cb_arg = arg;
1519 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1520 * client needs to select a protocol from the server's provided list. |out|
1521 * must be set to point to the selected protocol (which may be within |in|).
1522 * The length of the protocol name must be written into |outlen|. The
1523 * server's advertised protocols are provided in |in| and |inlen|. The
1524 * callback can assume that |in| is syntactically valid. The client must
1525 * select a protocol. It is fatal to the connection if this callback returns
1526 * a value other than SSL_TLSEXT_ERR_OK.
1528 void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx,
1529 int (*cb) (SSL *s, unsigned char **out,
1530 unsigned char *outlen,
1531 const unsigned char *in,
1533 void *arg), void *arg)
1535 ctx->next_proto_select_cb = cb;
1536 ctx->next_proto_select_cb_arg = arg;
1541 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
1542 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1543 * length-prefixed strings). Returns 0 on success.
1545 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
1546 unsigned protos_len)
1548 OPENSSL_free(ctx->alpn_client_proto_list);
1549 ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1550 if (ctx->alpn_client_proto_list == NULL)
1552 memcpy(ctx->alpn_client_proto_list, protos, protos_len);
1553 ctx->alpn_client_proto_list_len = protos_len;
1559 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
1560 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1561 * length-prefixed strings). Returns 0 on success.
1563 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
1564 unsigned protos_len)
1566 OPENSSL_free(ssl->alpn_client_proto_list);
1567 ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1568 if (ssl->alpn_client_proto_list == NULL)
1570 memcpy(ssl->alpn_client_proto_list, protos, protos_len);
1571 ssl->alpn_client_proto_list_len = protos_len;
1577 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
1578 * called during ClientHello processing in order to select an ALPN protocol
1579 * from the client's list of offered protocols.
1581 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
1582 int (*cb) (SSL *ssl,
1583 const unsigned char **out,
1584 unsigned char *outlen,
1585 const unsigned char *in,
1587 void *arg), void *arg)
1589 ctx->alpn_select_cb = cb;
1590 ctx->alpn_select_cb_arg = arg;
1594 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from
1595 * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name
1596 * (not including the leading length-prefix byte). If the server didn't
1597 * respond with a negotiated protocol then |*len| will be zero.
1599 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
1604 *data = ssl->s3->alpn_selected;
1608 *len = ssl->s3->alpn_selected_len;
1612 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1613 const char *label, size_t llen,
1614 const unsigned char *p, size_t plen,
1617 if (s->version < TLS1_VERSION)
1620 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
1625 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1630 ((unsigned int)a->session_id[0]) |
1631 ((unsigned int)a->session_id[1] << 8L) |
1632 ((unsigned long)a->session_id[2] << 16L) |
1633 ((unsigned long)a->session_id[3] << 24L);
1638 * NB: If this function (or indeed the hash function which uses a sort of
1639 * coarser function than this one) is changed, ensure
1640 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
1641 * being able to construct an SSL_SESSION that will collide with any existing
1642 * session with a matching session ID.
1644 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
1646 if (a->ssl_version != b->ssl_version)
1648 if (a->session_id_length != b->session_id_length)
1650 return (memcmp(a->session_id, b->session_id, a->session_id_length));
1654 * These wrapper functions should remain rather than redeclaring
1655 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1656 * variable. The reason is that the functions aren't static, they're exposed
1659 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1660 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1662 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1664 SSL_CTX *ret = NULL;
1667 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED);
1671 if (FIPS_mode() && (meth->version < TLS1_VERSION)) {
1672 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1676 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
1677 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1680 ret = OPENSSL_zalloc(sizeof(*ret));
1685 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
1686 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1687 /* We take the system default. */
1688 ret->session_timeout = meth->get_timeout();
1689 ret->references = 1;
1690 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
1691 ret->verify_mode = SSL_VERIFY_NONE;
1692 if ((ret->cert = ssl_cert_new()) == NULL)
1695 ret->sessions = lh_SSL_SESSION_new();
1696 if (ret->sessions == NULL)
1698 ret->cert_store = X509_STORE_new();
1699 if (ret->cert_store == NULL)
1702 if (!ssl_create_cipher_list(ret->method,
1703 &ret->cipher_list, &ret->cipher_list_by_id,
1704 SSL_DEFAULT_CIPHER_LIST, ret->cert)
1705 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
1706 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);
1710 ret->param = X509_VERIFY_PARAM_new();
1711 if (ret->param == NULL)
1714 if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {
1715 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1718 if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) {
1719 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1723 if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL)
1726 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1728 /* No compression for DTLS */
1729 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
1730 ret->comp_methods = SSL_COMP_get_compression_methods();
1732 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1734 /* Setup RFC4507 ticket keys */
1735 if ((RAND_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1736 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1737 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1738 ret->options |= SSL_OP_NO_TICKET;
1740 #ifndef OPENSSL_NO_SRP
1741 if (!SSL_CTX_SRP_CTX_init(ret))
1744 #ifndef OPENSSL_NO_ENGINE
1745 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1746 # define eng_strx(x) #x
1747 # define eng_str(x) eng_strx(x)
1748 /* Use specific client engine automatically... ignore errors */
1751 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1754 ENGINE_load_builtin_engines();
1755 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1757 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
1763 * Default is to connect to non-RI servers. When RI is more widely
1764 * deployed might change this.
1766 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
1770 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
1776 void SSL_CTX_free(SSL_CTX *a)
1783 i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_SSL_CTX);
1785 REF_PRINT("SSL_CTX", a);
1791 fprintf(stderr, "SSL_CTX_free, bad reference count\n");
1796 X509_VERIFY_PARAM_free(a->param);
1799 * Free internal session cache. However: the remove_cb() may reference
1800 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
1801 * after the sessions were flushed.
1802 * As the ex_data handling routines might also touch the session cache,
1803 * the most secure solution seems to be: empty (flush) the cache, then
1804 * free ex_data, then finally free the cache.
1805 * (See ticket [openssl.org #212].)
1807 if (a->sessions != NULL)
1808 SSL_CTX_flush_sessions(a, 0);
1810 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
1811 lh_SSL_SESSION_free(a->sessions);
1812 X509_STORE_free(a->cert_store);
1813 sk_SSL_CIPHER_free(a->cipher_list);
1814 sk_SSL_CIPHER_free(a->cipher_list_by_id);
1815 ssl_cert_free(a->cert);
1816 sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free);
1817 sk_X509_pop_free(a->extra_certs, X509_free);
1818 a->comp_methods = NULL;
1819 #ifndef OPENSSL_NO_SRTP
1820 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
1822 #ifndef OPENSSL_NO_SRP
1823 SSL_CTX_SRP_CTX_free(a);
1825 #ifndef OPENSSL_NO_ENGINE
1826 if (a->client_cert_engine)
1827 ENGINE_finish(a->client_cert_engine);
1830 #ifndef OPENSSL_NO_EC
1831 OPENSSL_free(a->tlsext_ecpointformatlist);
1832 OPENSSL_free(a->tlsext_ellipticcurvelist);
1834 OPENSSL_free(a->alpn_client_proto_list);
1839 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
1841 ctx->default_passwd_callback = cb;
1844 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
1846 ctx->default_passwd_callback_userdata = u;
1849 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
1850 int (*cb) (X509_STORE_CTX *, void *),
1853 ctx->app_verify_callback = cb;
1854 ctx->app_verify_arg = arg;
1857 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
1858 int (*cb) (int, X509_STORE_CTX *))
1860 ctx->verify_mode = mode;
1861 ctx->default_verify_callback = cb;
1864 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
1866 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
1869 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg),
1872 ssl_cert_set_cert_cb(c->cert, cb, arg);
1875 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
1877 ssl_cert_set_cert_cb(s->cert, cb, arg);
1880 void ssl_set_masks(SSL *s, const SSL_CIPHER *cipher)
1884 uint32_t *pvalid = s->s3->tmp.valid_flags;
1885 int rsa_enc, rsa_tmp, rsa_sign, dh_tmp, dh_rsa, dh_dsa, dsa_sign;
1886 int rsa_enc_export, dh_rsa_export, dh_dsa_export;
1887 int rsa_tmp_export, dh_tmp_export, kl;
1888 unsigned long mask_k, mask_a, emask_k, emask_a;
1889 #ifndef OPENSSL_NO_EC
1890 int have_ecc_cert, ecdsa_ok, ecc_pkey_size;
1891 int have_ecdh_tmp, ecdh_ok;
1893 EVP_PKEY *ecc_pkey = NULL;
1894 int pk_nid = 0, md_nid = 0;
1899 kl = SSL_C_EXPORT_PKEYLENGTH(cipher);
1901 #ifndef OPENSSL_NO_RSA
1902 rsa_tmp = (c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
1903 rsa_tmp_export = (c->rsa_tmp_cb != NULL ||
1904 (rsa_tmp && RSA_size(c->rsa_tmp) * 8 <= kl));
1906 rsa_tmp = rsa_tmp_export = 0;
1908 #ifndef OPENSSL_NO_DH
1909 dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto);
1910 dh_tmp_export = !c->dh_tmp_auto && (c->dh_tmp_cb != NULL ||
1912 && DH_size(c->dh_tmp) * 8 <= kl));
1914 dh_tmp = dh_tmp_export = 0;
1917 #ifndef OPENSSL_NO_EC
1918 have_ecdh_tmp = (c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
1920 cpk = &(c->pkeys[SSL_PKEY_RSA_ENC]);
1921 rsa_enc = pvalid[SSL_PKEY_RSA_ENC] & CERT_PKEY_VALID;
1922 rsa_enc_export = (rsa_enc && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
1923 cpk = &(c->pkeys[SSL_PKEY_RSA_SIGN]);
1924 rsa_sign = pvalid[SSL_PKEY_RSA_SIGN] & CERT_PKEY_SIGN;
1925 cpk = &(c->pkeys[SSL_PKEY_DSA_SIGN]);
1926 dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_SIGN;
1927 cpk = &(c->pkeys[SSL_PKEY_DH_RSA]);
1928 dh_rsa = pvalid[SSL_PKEY_DH_RSA] & CERT_PKEY_VALID;
1929 dh_rsa_export = (dh_rsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
1930 cpk = &(c->pkeys[SSL_PKEY_DH_DSA]);
1931 dh_dsa = pvalid[SSL_PKEY_DH_DSA] & CERT_PKEY_VALID;
1932 dh_dsa_export = (dh_dsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
1933 cpk = &(c->pkeys[SSL_PKEY_ECC]);
1934 #ifndef OPENSSL_NO_EC
1935 have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID;
1944 "rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
1945 rsa_tmp, rsa_tmp_export, dh_tmp, have_ecdh_tmp, rsa_enc,
1946 rsa_enc_export, rsa_sign, dsa_sign, dh_rsa, dh_dsa);
1949 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
1950 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
1951 mask_k |= SSL_kGOST;
1952 mask_a |= SSL_aGOST01;
1955 if (rsa_enc || (rsa_tmp && rsa_sign))
1957 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
1958 emask_k |= SSL_kRSA;
1961 emask_k |= SSL_kDHE;
1969 emask_k |= SSL_kDHr;
1974 emask_k |= SSL_kDHd;
1976 if (mask_k & (SSL_kDHr | SSL_kDHd))
1979 if (rsa_enc || rsa_sign) {
1981 emask_a |= SSL_aRSA;
1986 emask_a |= SSL_aDSS;
1989 mask_a |= SSL_aNULL;
1990 emask_a |= SSL_aNULL;
1993 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
1994 * depending on the key usage extension.
1996 #ifndef OPENSSL_NO_EC
1997 if (have_ecc_cert) {
1999 cpk = &c->pkeys[SSL_PKEY_ECC];
2001 ex_kusage = X509_get_key_usage(x);
2002 ecdh_ok = ex_kusage & X509v3_KU_KEY_AGREEMENT;
2003 ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE;
2004 if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN))
2006 ecc_pkey = X509_get_pubkey(x);
2007 ecc_pkey_size = (ecc_pkey != NULL) ? EVP_PKEY_bits(ecc_pkey) : 0;
2008 EVP_PKEY_free(ecc_pkey);
2009 OBJ_find_sigid_algs(X509_get_signature_nid(x), &md_nid, &pk_nid);
2012 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa) {
2013 mask_k |= SSL_kECDHr;
2014 mask_a |= SSL_aECDH;
2015 if (ecc_pkey_size <= 163) {
2016 emask_k |= SSL_kECDHr;
2017 emask_a |= SSL_aECDH;
2021 if (pk_nid == NID_X9_62_id_ecPublicKey) {
2022 mask_k |= SSL_kECDHe;
2023 mask_a |= SSL_aECDH;
2024 if (ecc_pkey_size <= 163) {
2025 emask_k |= SSL_kECDHe;
2026 emask_a |= SSL_aECDH;
2031 mask_a |= SSL_aECDSA;
2032 emask_a |= SSL_aECDSA;
2037 #ifndef OPENSSL_NO_EC
2038 if (have_ecdh_tmp) {
2039 mask_k |= SSL_kECDHE;
2040 emask_k |= SSL_kECDHE;
2044 #ifndef OPENSSL_NO_PSK
2047 emask_k |= SSL_kPSK;
2048 emask_a |= SSL_aPSK;
2049 if (mask_k & SSL_kRSA)
2050 mask_k |= SSL_kRSAPSK;
2051 if (mask_k & SSL_kDHE)
2052 mask_k |= SSL_kDHEPSK;
2053 if (mask_k & SSL_kECDHE)
2054 mask_k |= SSL_kECDHEPSK;
2057 s->s3->tmp.mask_k = mask_k;
2058 s->s3->tmp.mask_a = mask_a;
2059 s->s3->tmp.export_mask_k = emask_k;
2060 s->s3->tmp.export_mask_a = emask_a;
2063 #ifndef OPENSSL_NO_EC
2065 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2067 unsigned long alg_k, alg_a;
2068 EVP_PKEY *pkey = NULL;
2070 int md_nid = 0, pk_nid = 0;
2071 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2072 uint32_t ex_kusage = X509_get_key_usage(x);
2074 alg_k = cs->algorithm_mkey;
2075 alg_a = cs->algorithm_auth;
2077 if (SSL_C_IS_EXPORT(cs)) {
2078 /* ECDH key length in export ciphers must be <= 163 bits */
2079 pkey = X509_get_pubkey(x);
2082 keysize = EVP_PKEY_bits(pkey);
2083 EVP_PKEY_free(pkey);
2088 OBJ_find_sigid_algs(X509_get_signature_nid(x), &md_nid, &pk_nid);
2090 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr) {
2091 /* key usage, if present, must allow key agreement */
2092 if (!(ex_kusage & X509v3_KU_KEY_AGREEMENT)) {
2093 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2094 SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2097 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION) {
2098 /* signature alg must be ECDSA */
2099 if (pk_nid != NID_X9_62_id_ecPublicKey) {
2100 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2101 SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2105 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION) {
2106 /* signature alg must be RSA */
2108 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa) {
2109 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2110 SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2115 if (alg_a & SSL_aECDSA) {
2116 /* key usage, if present, must allow signing */
2117 if (!(ex_kusage & X509v3_KU_DIGITAL_SIGNATURE)) {
2118 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2119 SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2124 return 1; /* all checks are ok */
2129 static int ssl_get_server_cert_index(const SSL *s)
2132 idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2133 if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2134 idx = SSL_PKEY_RSA_SIGN;
2136 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX, ERR_R_INTERNAL_ERROR);
2140 CERT_PKEY *ssl_get_server_send_pkey(SSL *s)
2146 if (!s->s3 || !s->s3->tmp.new_cipher)
2148 ssl_set_masks(s, s->s3->tmp.new_cipher);
2150 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2152 * Broken protocol test: return last used certificate: which may mismatch
2155 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2159 i = ssl_get_server_cert_index(s);
2161 /* This may or may not be an error. */
2166 return &c->pkeys[i];
2169 EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher,
2172 unsigned long alg_a;
2176 alg_a = cipher->algorithm_auth;
2179 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2181 * Broken protocol test: use last key: which may mismatch the one
2184 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2185 idx = c->key - c->pkeys;
2189 if ((alg_a & SSL_aDSS) &&
2190 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2191 idx = SSL_PKEY_DSA_SIGN;
2192 else if (alg_a & SSL_aRSA) {
2193 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2194 idx = SSL_PKEY_RSA_SIGN;
2195 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2196 idx = SSL_PKEY_RSA_ENC;
2197 } else if ((alg_a & SSL_aECDSA) &&
2198 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2201 SSLerr(SSL_F_SSL_GET_SIGN_PKEY, ERR_R_INTERNAL_ERROR);
2205 *pmd = s->s3->tmp.md[idx];
2206 return c->pkeys[idx].privatekey;
2209 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
2210 size_t *serverinfo_length)
2214 *serverinfo_length = 0;
2217 i = ssl_get_server_cert_index(s);
2221 if (c->pkeys[i].serverinfo == NULL)
2224 *serverinfo = c->pkeys[i].serverinfo;
2225 *serverinfo_length = c->pkeys[i].serverinfo_length;
2229 void ssl_update_cache(SSL *s, int mode)
2234 * If the session_id_length is 0, we are not supposed to cache it, and it
2235 * would be rather hard to do anyway :-)
2237 if (s->session->session_id_length == 0)
2240 i = s->session_ctx->session_cache_mode;
2241 if ((i & mode) && (!s->hit)
2242 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2243 || SSL_CTX_add_session(s->session_ctx, s->session))
2244 && (s->session_ctx->new_session_cb != NULL)) {
2245 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION);
2246 if (!s->session_ctx->new_session_cb(s, s->session))
2247 SSL_SESSION_free(s->session);
2250 /* auto flush every 255 connections */
2251 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
2252 if ((((mode & SSL_SESS_CACHE_CLIENT)
2253 ? s->session_ctx->stats.sess_connect_good
2254 : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) {
2255 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
2260 const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx)
2265 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2270 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2275 if (s->method != meth) {
2276 if (s->handshake_func != NULL)
2277 conn = (s->handshake_func == s->method->ssl_connect);
2279 if (s->method->version == meth->version)
2282 s->method->ssl_free(s);
2284 ret = s->method->ssl_new(s);
2288 s->handshake_func = meth->ssl_connect;
2290 s->handshake_func = meth->ssl_accept;
2295 int SSL_get_error(const SSL *s, int i)
2302 return (SSL_ERROR_NONE);
2305 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
2306 * where we do encode the error
2308 if ((l = ERR_peek_error()) != 0) {
2309 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2310 return (SSL_ERROR_SYSCALL);
2312 return (SSL_ERROR_SSL);
2315 if ((i < 0) && SSL_want_read(s)) {
2316 bio = SSL_get_rbio(s);
2317 if (BIO_should_read(bio))
2318 return (SSL_ERROR_WANT_READ);
2319 else if (BIO_should_write(bio))
2321 * This one doesn't make too much sense ... We never try to write
2322 * to the rbio, and an application program where rbio and wbio
2323 * are separate couldn't even know what it should wait for.
2324 * However if we ever set s->rwstate incorrectly (so that we have
2325 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
2326 * wbio *are* the same, this test works around that bug; so it
2327 * might be safer to keep it.
2329 return (SSL_ERROR_WANT_WRITE);
2330 else if (BIO_should_io_special(bio)) {
2331 reason = BIO_get_retry_reason(bio);
2332 if (reason == BIO_RR_CONNECT)
2333 return (SSL_ERROR_WANT_CONNECT);
2334 else if (reason == BIO_RR_ACCEPT)
2335 return (SSL_ERROR_WANT_ACCEPT);
2337 return (SSL_ERROR_SYSCALL); /* unknown */
2341 if ((i < 0) && SSL_want_write(s)) {
2342 bio = SSL_get_wbio(s);
2343 if (BIO_should_write(bio))
2344 return (SSL_ERROR_WANT_WRITE);
2345 else if (BIO_should_read(bio))
2347 * See above (SSL_want_read(s) with BIO_should_write(bio))
2349 return (SSL_ERROR_WANT_READ);
2350 else if (BIO_should_io_special(bio)) {
2351 reason = BIO_get_retry_reason(bio);
2352 if (reason == BIO_RR_CONNECT)
2353 return (SSL_ERROR_WANT_CONNECT);
2354 else if (reason == BIO_RR_ACCEPT)
2355 return (SSL_ERROR_WANT_ACCEPT);
2357 return (SSL_ERROR_SYSCALL);
2360 if ((i < 0) && SSL_want_x509_lookup(s)) {
2361 return (SSL_ERROR_WANT_X509_LOOKUP);
2365 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2366 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2367 return (SSL_ERROR_ZERO_RETURN);
2369 return (SSL_ERROR_SYSCALL);
2372 int SSL_do_handshake(SSL *s)
2376 if (s->handshake_func == NULL) {
2377 SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET);
2381 s->method->ssl_renegotiate_check(s);
2383 if (SSL_in_init(s) || SSL_in_before(s)) {
2384 ret = s->handshake_func(s);
2389 void SSL_set_accept_state(SSL *s)
2393 ossl_statem_clear(s);
2394 s->handshake_func = s->method->ssl_accept;
2398 void SSL_set_connect_state(SSL *s)
2402 ossl_statem_clear(s);
2403 s->handshake_func = s->method->ssl_connect;
2407 int ssl_undefined_function(SSL *s)
2409 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2413 int ssl_undefined_void_function(void)
2415 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,
2416 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2420 int ssl_undefined_const_function(const SSL *s)
2422 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,
2423 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2427 SSL_METHOD *ssl_bad_method(int ver)
2429 SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2433 const char *SSL_get_version(const SSL *s)
2435 if (s->version == TLS1_2_VERSION)
2437 else if (s->version == TLS1_1_VERSION)
2439 else if (s->version == TLS1_VERSION)
2441 else if (s->version == SSL3_VERSION)
2443 else if (s->version == DTLS1_BAD_VER)
2444 return ("DTLSv0.9");
2445 else if (s->version == DTLS1_VERSION)
2447 else if (s->version == DTLS1_2_VERSION)
2448 return ("DTLSv1.2");
2453 SSL *SSL_dup(SSL *s)
2455 STACK_OF(X509_NAME) *sk;
2460 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2463 ret->version = s->version;
2464 ret->method = s->method;
2466 if (s->session != NULL) {
2467 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2468 if (!SSL_copy_session_id(ret, s))
2472 * No session has been established yet, so we have to expect that
2473 * s->cert or ret->cert will be changed later -- they should not both
2474 * point to the same object, and thus we can't use
2475 * SSL_copy_session_id.
2478 ret->method->ssl_free(ret);
2479 ret->method = s->method;
2480 ret->method->ssl_new(ret);
2482 if (s->cert != NULL) {
2483 ssl_cert_free(ret->cert);
2484 ret->cert = ssl_cert_dup(s->cert);
2485 if (ret->cert == NULL)
2489 if (!SSL_set_session_id_context(ret, s->sid_ctx, s->sid_ctx_length))
2493 ret->options = s->options;
2494 ret->mode = s->mode;
2495 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
2496 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
2497 ret->msg_callback = s->msg_callback;
2498 ret->msg_callback_arg = s->msg_callback_arg;
2499 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
2500 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
2501 ret->generate_session_id = s->generate_session_id;
2503 SSL_set_info_callback(ret, SSL_get_info_callback(s));
2505 ret->debug = s->debug;
2507 /* copy app data, a little dangerous perhaps */
2508 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2511 /* setup rbio, and wbio */
2512 if (s->rbio != NULL) {
2513 if (!BIO_dup_state(s->rbio, (char *)&ret->rbio))
2516 if (s->wbio != NULL) {
2517 if (s->wbio != s->rbio) {
2518 if (!BIO_dup_state(s->wbio, (char *)&ret->wbio))
2521 ret->wbio = ret->rbio;
2523 ret->rwstate = s->rwstate;
2524 ret->handshake_func = s->handshake_func;
2525 ret->server = s->server;
2526 ret->renegotiate = s->renegotiate;
2527 ret->new_session = s->new_session;
2528 ret->quiet_shutdown = s->quiet_shutdown;
2529 ret->shutdown = s->shutdown;
2530 ret->statem = s->statem; /* SSL_dup does not really work at any state,
2532 RECORD_LAYER_dup(&ret->rlayer, &s->rlayer);
2533 ret->init_num = 0; /* would have to copy ret->init_buf,
2534 * ret->init_msg, ret->init_num,
2538 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2540 /* dup the cipher_list and cipher_list_by_id stacks */
2541 if (s->cipher_list != NULL) {
2542 if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2545 if (s->cipher_list_by_id != NULL)
2546 if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2550 /* Dup the client_CA list */
2551 if (s->client_CA != NULL) {
2552 if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL)
2554 ret->client_CA = sk;
2555 for (i = 0; i < sk_X509_NAME_num(sk); i++) {
2556 xn = sk_X509_NAME_value(sk, i);
2557 if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) {
2570 void ssl_clear_cipher_ctx(SSL *s)
2572 if (s->enc_read_ctx != NULL) {
2573 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2574 OPENSSL_free(s->enc_read_ctx);
2575 s->enc_read_ctx = NULL;
2577 if (s->enc_write_ctx != NULL) {
2578 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2579 OPENSSL_free(s->enc_write_ctx);
2580 s->enc_write_ctx = NULL;
2582 #ifndef OPENSSL_NO_COMP
2583 COMP_CTX_free(s->expand);
2585 COMP_CTX_free(s->compress);
2590 X509 *SSL_get_certificate(const SSL *s)
2592 if (s->cert != NULL)
2593 return (s->cert->key->x509);
2598 EVP_PKEY *SSL_get_privatekey(const SSL *s)
2600 if (s->cert != NULL)
2601 return (s->cert->key->privatekey);
2606 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
2608 if (ctx->cert != NULL)
2609 return ctx->cert->key->x509;
2614 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
2616 if (ctx->cert != NULL)
2617 return ctx->cert->key->privatekey;
2622 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2624 if ((s->session != NULL) && (s->session->cipher != NULL))
2625 return (s->session->cipher);
2629 const COMP_METHOD *SSL_get_current_compression(SSL *s)
2631 #ifndef OPENSSL_NO_COMP
2632 return s->compress ? COMP_CTX_get_method(s->compress) : NULL;
2638 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2640 #ifndef OPENSSL_NO_COMP
2641 return s->expand ? COMP_CTX_get_method(s->expand) : NULL;
2647 int ssl_init_wbio_buffer(SSL *s, int push)
2651 if (s->bbio == NULL) {
2652 bbio = BIO_new(BIO_f_buffer());
2658 if (s->bbio == s->wbio)
2659 s->wbio = BIO_pop(s->wbio);
2661 (void)BIO_reset(bbio);
2662 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2663 if (!BIO_set_read_buffer_size(bbio, 1)) {
2664 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB);
2668 if (s->wbio != bbio)
2669 s->wbio = BIO_push(bbio, s->wbio);
2671 if (s->wbio == bbio)
2672 s->wbio = BIO_pop(bbio);
2677 void ssl_free_wbio_buffer(SSL *s)
2679 /* callers ensure s is never null */
2680 if (s->bbio == NULL)
2683 if (s->bbio == s->wbio) {
2684 /* remove buffering */
2685 s->wbio = BIO_pop(s->wbio);
2686 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids
2687 * adding one more preprocessor symbol */
2688 assert(s->wbio != NULL);
2695 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
2697 ctx->quiet_shutdown = mode;
2700 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
2702 return (ctx->quiet_shutdown);
2705 void SSL_set_quiet_shutdown(SSL *s, int mode)
2707 s->quiet_shutdown = mode;
2710 int SSL_get_quiet_shutdown(const SSL *s)
2712 return (s->quiet_shutdown);
2715 void SSL_set_shutdown(SSL *s, int mode)
2720 int SSL_get_shutdown(const SSL *s)
2722 return (s->shutdown);
2725 int SSL_version(const SSL *s)
2727 return (s->version);
2730 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
2735 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
2738 if (ssl->ctx == ctx)
2741 ctx = ssl->initial_ctx;
2742 new_cert = ssl_cert_dup(ctx->cert);
2743 if (new_cert == NULL) {
2746 ssl_cert_free(ssl->cert);
2747 ssl->cert = new_cert;
2750 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
2751 * so setter APIs must prevent invalid lengths from entering the system.
2753 OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx));
2756 * If the session ID context matches that of the parent SSL_CTX,
2757 * inherit it from the new SSL_CTX as well. If however the context does
2758 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
2759 * leave it unchanged.
2761 if ((ssl->ctx != NULL) &&
2762 (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
2763 (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) {
2764 ssl->sid_ctx_length = ctx->sid_ctx_length;
2765 memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx));
2768 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
2769 SSL_CTX_free(ssl->ctx); /* decrement reference count */
2775 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
2777 return (X509_STORE_set_default_paths(ctx->cert_store));
2780 int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx)
2782 X509_LOOKUP *lookup;
2784 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir());
2787 X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
2789 /* Clear any errors if the default directory does not exist */
2795 int SSL_CTX_set_default_verify_file(SSL_CTX *ctx)
2797 X509_LOOKUP *lookup;
2799 lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file());
2803 X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
2805 /* Clear any errors if the default file does not exist */
2811 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
2814 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath));
2817 void SSL_set_info_callback(SSL *ssl,
2818 void (*cb) (const SSL *ssl, int type, int val))
2820 ssl->info_callback = cb;
2824 * One compiler (Diab DCC) doesn't like argument names in returned function
2827 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
2830 return ssl->info_callback;
2833 void SSL_set_verify_result(SSL *ssl, long arg)
2835 ssl->verify_result = arg;
2838 long SSL_get_verify_result(const SSL *ssl)
2840 return (ssl->verify_result);
2843 size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen)
2846 return sizeof(ssl->s3->client_random);
2847 if (outlen > sizeof(ssl->s3->client_random))
2848 outlen = sizeof(ssl->s3->client_random);
2849 memcpy(out, ssl->s3->client_random, outlen);
2853 size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen)
2856 return sizeof(ssl->s3->server_random);
2857 if (outlen > sizeof(ssl->s3->server_random))
2858 outlen = sizeof(ssl->s3->server_random);
2859 memcpy(out, ssl->s3->server_random, outlen);
2863 size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
2864 unsigned char *out, size_t outlen)
2866 if (session->master_key_length < 0) {
2867 /* Should never happen */
2871 return session->master_key_length;
2872 if (outlen > (size_t)session->master_key_length)
2873 outlen = session->master_key_length;
2874 memcpy(out, session->master_key, outlen);
2878 int SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
2879 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
2881 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
2882 new_func, dup_func, free_func);
2885 int SSL_set_ex_data(SSL *s, int idx, void *arg)
2887 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
2890 void *SSL_get_ex_data(const SSL *s, int idx)
2892 return (CRYPTO_get_ex_data(&s->ex_data, idx));
2895 int SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
2896 CRYPTO_EX_dup *dup_func,
2897 CRYPTO_EX_free *free_func)
2899 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
2900 new_func, dup_func, free_func);
2903 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
2905 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
2908 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
2910 return (CRYPTO_get_ex_data(&s->ex_data, idx));
2918 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
2920 return (ctx->cert_store);
2923 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
2925 X509_STORE_free(ctx->cert_store);
2926 ctx->cert_store = store;
2929 int SSL_want(const SSL *s)
2931 return (s->rwstate);
2935 * \brief Set the callback for generating temporary RSA keys.
2936 * \param ctx the SSL context.
2937 * \param cb the callback
2940 #ifndef OPENSSL_NO_RSA
2941 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb) (SSL *ssl,
2945 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb);
2948 void SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb) (SSL *ssl,
2952 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb);
2958 * \brief The RSA temporary key callback function.
2959 * \param ssl the SSL session.
2960 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
2961 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
2962 * of the required key in bits.
2963 * \return the temporary RSA key.
2964 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
2967 RSA *cb(SSL *ssl, int is_export, int keylength)
2973 * \brief Set the callback for generating temporary DH keys.
2974 * \param ctx the SSL context.
2975 * \param dh the callback
2978 #ifndef OPENSSL_NO_DH
2979 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
2980 DH *(*dh) (SSL *ssl, int is_export,
2983 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
2986 void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export,
2989 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
2993 #ifndef OPENSSL_NO_EC
2994 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,
2995 EC_KEY *(*ecdh) (SSL *ssl, int is_export,
2998 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB,
2999 (void (*)(void))ecdh);
3002 void SSL_set_tmp_ecdh_callback(SSL *ssl,
3003 EC_KEY *(*ecdh) (SSL *ssl, int is_export,
3006 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB, (void (*)(void))ecdh);
3010 #ifndef OPENSSL_NO_PSK
3011 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3013 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3014 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT,
3015 SSL_R_DATA_LENGTH_TOO_LONG);
3018 OPENSSL_free(ctx->cert->psk_identity_hint);
3019 if (identity_hint != NULL) {
3020 ctx->cert->psk_identity_hint = BUF_strdup(identity_hint);
3021 if (ctx->cert->psk_identity_hint == NULL)
3024 ctx->cert->psk_identity_hint = NULL;
3028 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3033 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3034 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3037 OPENSSL_free(s->cert->psk_identity_hint);
3038 if (identity_hint != NULL) {
3039 s->cert->psk_identity_hint = BUF_strdup(identity_hint);
3040 if (s->cert->psk_identity_hint == NULL)
3043 s->cert->psk_identity_hint = NULL;
3047 const char *SSL_get_psk_identity_hint(const SSL *s)
3049 if (s == NULL || s->session == NULL)
3051 return (s->session->psk_identity_hint);
3054 const char *SSL_get_psk_identity(const SSL *s)
3056 if (s == NULL || s->session == NULL)
3058 return (s->session->psk_identity);
3061 void SSL_set_psk_client_callback(SSL *s,
3062 unsigned int (*cb) (SSL *ssl,
3071 s->psk_client_callback = cb;
3074 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3075 unsigned int (*cb) (SSL *ssl,
3084 ctx->psk_client_callback = cb;
3087 void SSL_set_psk_server_callback(SSL *s,
3088 unsigned int (*cb) (SSL *ssl,
3089 const char *identity,
3094 s->psk_server_callback = cb;
3097 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3098 unsigned int (*cb) (SSL *ssl,
3099 const char *identity,
3104 ctx->psk_server_callback = cb;
3108 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
3109 void (*cb) (int write_p, int version,
3110 int content_type, const void *buf,
3111 size_t len, SSL *ssl, void *arg))
3113 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3116 void SSL_set_msg_callback(SSL *ssl,
3117 void (*cb) (int write_p, int version,
3118 int content_type, const void *buf,
3119 size_t len, SSL *ssl, void *arg))
3121 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3124 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
3125 int (*cb) (SSL *ssl,
3129 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3130 (void (*)(void))cb);
3133 void SSL_set_not_resumable_session_callback(SSL *ssl,
3134 int (*cb) (SSL *ssl,
3135 int is_forward_secure))
3137 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3138 (void (*)(void))cb);
3142 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3143 * vairable, freeing EVP_MD_CTX previously stored in that variable, if any.
3144 * If EVP_MD pointer is passed, initializes ctx with this md Returns newly
3148 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
3150 ssl_clear_hash_ctx(hash);
3151 *hash = EVP_MD_CTX_create();
3153 EVP_DigestInit_ex(*hash, md, NULL);
3157 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3161 EVP_MD_CTX_destroy(*hash);
3165 /* Retrieve handshake hashes */
3166 int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen)
3168 unsigned char *p = out;
3173 EVP_MD_CTX_init(&ctx);
3174 for (idx = 0; ssl_get_handshake_digest(idx, &mask, &md); idx++) {
3175 if (mask & ssl_get_algorithm2(s)) {
3176 int hashsize = EVP_MD_size(md);
3177 EVP_MD_CTX *hdgst = s->s3->handshake_dgst[idx];
3178 if (!hdgst || hashsize < 0 || hashsize > outlen)
3180 if (!EVP_MD_CTX_copy_ex(&ctx, hdgst))
3182 if (!EVP_DigestFinal_ex(&ctx, p, NULL))
3190 EVP_MD_CTX_cleanup(&ctx);
3194 void SSL_set_debug(SSL *s, int debug)
3199 int SSL_cache_hit(SSL *s)
3204 int SSL_is_server(SSL *s)
3209 void SSL_set_security_level(SSL *s, int level)
3211 s->cert->sec_level = level;
3214 int SSL_get_security_level(const SSL *s)
3216 return s->cert->sec_level;
3219 void SSL_set_security_callback(SSL *s,
3220 int (*cb) (SSL *s, SSL_CTX *ctx, int op,
3221 int bits, int nid, void *other,
3224 s->cert->sec_cb = cb;
3227 int (*SSL_get_security_callback(const SSL *s)) (SSL *s, SSL_CTX *ctx, int op,
3229 void *other, void *ex) {
3230 return s->cert->sec_cb;
3233 void SSL_set0_security_ex_data(SSL *s, void *ex)
3235 s->cert->sec_ex = ex;
3238 void *SSL_get0_security_ex_data(const SSL *s)
3240 return s->cert->sec_ex;
3243 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
3245 ctx->cert->sec_level = level;
3248 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
3250 return ctx->cert->sec_level;
3253 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
3254 int (*cb) (SSL *s, SSL_CTX *ctx, int op,
3255 int bits, int nid, void *other,
3258 ctx->cert->sec_cb = cb;
3261 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (SSL *s,
3267 return ctx->cert->sec_cb;
3270 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
3272 ctx->cert->sec_ex = ex;
3275 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
3277 return ctx->cert->sec_ex;
3280 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);