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 "kssl_lcl.h"
151 #include <openssl/objects.h>
152 #include <openssl/lhash.h>
153 #include <openssl/x509v3.h>
154 #include <openssl/rand.h>
155 #include <openssl/ocsp.h>
156 #ifndef OPENSSL_NO_DH
157 # include <openssl/dh.h>
159 #ifndef OPENSSL_NO_ENGINE
160 # include <openssl/engine.h>
163 const char *SSL_version_str = OPENSSL_VERSION_TEXT;
165 SSL3_ENC_METHOD ssl3_undef_enc_method = {
167 * evil casts, but these functions are only called if there's a library
170 (int (*)(SSL *, int))ssl_undefined_function,
171 (int (*)(SSL *, unsigned char *, int))ssl_undefined_function,
172 ssl_undefined_function,
173 (int (*)(SSL *, unsigned char *, unsigned char *, int))
174 ssl_undefined_function,
175 (int (*)(SSL *, int))ssl_undefined_function,
176 (int (*)(SSL *, const char *, int, unsigned char *))
177 ssl_undefined_function,
178 0, /* finish_mac_length */
179 (int (*)(SSL *, int, unsigned char *))ssl_undefined_function,
180 NULL, /* client_finished_label */
181 0, /* client_finished_label_len */
182 NULL, /* server_finished_label */
183 0, /* server_finished_label_len */
184 (int (*)(int))ssl_undefined_function,
185 (int (*)(SSL *, unsigned char *, size_t, const char *,
186 size_t, const unsigned char *, size_t,
187 int use_context))ssl_undefined_function,
190 int SSL_clear(SSL *s)
193 if (s->method == NULL) {
194 SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED);
198 if (ssl_clear_bad_session(s)) {
199 SSL_SESSION_free(s->session);
207 if (s->renegotiate) {
208 SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR);
214 s->state = SSL_ST_BEFORE | ((s->server) ? SSL_ST_ACCEPT : SSL_ST_CONNECT);
216 s->version = s->method->version;
217 s->client_version = s->version;
218 s->rwstate = SSL_NOTHING;
219 s->rstate = SSL_ST_READ_HEADER;
221 if (s->init_buf != NULL) {
222 BUF_MEM_free(s->init_buf);
226 ssl_clear_cipher_ctx(s);
227 ssl_clear_hash_ctx(&s->read_hash);
228 ssl_clear_hash_ctx(&s->write_hash);
233 * Check to see if we were changed into a different method, if so, revert
234 * back if we are not doing session-id reuse.
236 if (!s->in_handshake && (s->session == NULL)
237 && (s->method != s->ctx->method)) {
238 s->method->ssl_free(s);
239 s->method = s->ctx->method;
240 if (!s->method->ssl_new(s))
243 s->method->ssl_clear(s);
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 = (SSL *)OPENSSL_malloc(sizeof(SSL));
281 memset(s, 0, sizeof(SSL));
283 #ifndef OPENSSL_NO_KRB5
284 s->kssl_ctx = kssl_ctx_new();
285 #endif /* OPENSSL_NO_KRB5 */
287 s->options = ctx->options;
289 s->max_cert_list = ctx->max_cert_list;
292 * Earlier library versions used to copy the pointer to the CERT, not
293 * its contents; only when setting new parameters for the per-SSL
294 * copy, ssl_cert_new would be called (and the direct reference to
295 * the per-SSL_CTX settings would be lost, but those still were
296 * indirectly accessed for various purposes, and for that reason they
297 * used to be known as s->ctx->default_cert). Now we don't look at the
298 * SSL_CTX's CERT after having duplicated it once.
300 s->cert = ssl_cert_dup(ctx->cert);
304 s->read_ahead = ctx->read_ahead;
305 s->msg_callback = ctx->msg_callback;
306 s->msg_callback_arg = ctx->msg_callback_arg;
307 s->verify_mode = ctx->verify_mode;
308 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
309 s->sid_ctx_length = ctx->sid_ctx_length;
310 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
311 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
312 s->verify_callback = ctx->default_verify_callback;
313 s->generate_session_id = ctx->generate_session_id;
315 s->param = X509_VERIFY_PARAM_new();
318 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
319 s->quiet_shutdown = ctx->quiet_shutdown;
320 s->max_send_fragment = ctx->max_send_fragment;
322 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
324 #ifndef OPENSSL_NO_TLSEXT
325 s->tlsext_debug_cb = 0;
326 s->tlsext_debug_arg = NULL;
327 s->tlsext_ticket_expected = 0;
328 s->tlsext_status_type = -1;
329 s->tlsext_status_expected = 0;
330 s->tlsext_ocsp_ids = NULL;
331 s->tlsext_ocsp_exts = NULL;
332 s->tlsext_ocsp_resp = NULL;
333 s->tlsext_ocsp_resplen = -1;
334 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
335 s->initial_ctx = ctx;
336 # ifndef OPENSSL_NO_EC
337 if (ctx->tlsext_ecpointformatlist) {
338 s->tlsext_ecpointformatlist =
339 BUF_memdup(ctx->tlsext_ecpointformatlist,
340 ctx->tlsext_ecpointformatlist_length);
341 if (!s->tlsext_ecpointformatlist)
343 s->tlsext_ecpointformatlist_length =
344 ctx->tlsext_ecpointformatlist_length;
346 if (ctx->tlsext_ellipticcurvelist) {
347 s->tlsext_ellipticcurvelist =
348 BUF_memdup(ctx->tlsext_ellipticcurvelist,
349 ctx->tlsext_ellipticcurvelist_length);
350 if (!s->tlsext_ellipticcurvelist)
352 s->tlsext_ellipticcurvelist_length =
353 ctx->tlsext_ellipticcurvelist_length;
356 # ifndef OPENSSL_NO_NEXTPROTONEG
357 s->next_proto_negotiated = NULL;
360 if (s->ctx->alpn_client_proto_list) {
361 s->alpn_client_proto_list =
362 OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);
363 if (s->alpn_client_proto_list == NULL)
365 memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,
366 s->ctx->alpn_client_proto_list_len);
367 s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;
371 s->verify_result = X509_V_OK;
373 s->method = ctx->method;
375 if (!s->method->ssl_new(s))
379 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;
394 SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
398 int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
399 unsigned int sid_ctx_len)
401 if (sid_ctx_len > sizeof ctx->sid_ctx) {
402 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,
403 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
406 ctx->sid_ctx_length = sid_ctx_len;
407 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
412 int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
413 unsigned int sid_ctx_len)
415 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
416 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,
417 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
420 ssl->sid_ctx_length = sid_ctx_len;
421 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len);
426 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
428 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
429 ctx->generate_session_id = cb;
430 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
434 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
436 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
437 ssl->generate_session_id = cb;
438 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
442 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
446 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
447 * we can "construct" a session to give us the desired check - ie. to
448 * find if there's a session in the hash table that would conflict with
449 * any new session built out of this id/id_len and the ssl_version in use
454 if (id_len > sizeof r.session_id)
457 r.ssl_version = ssl->version;
458 r.session_id_length = id_len;
459 memcpy(r.session_id, id, id_len);
461 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
462 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
463 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
467 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
469 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
472 int SSL_set_purpose(SSL *s, int purpose)
474 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
477 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
479 return X509_VERIFY_PARAM_set_trust(s->param, trust);
482 int SSL_set_trust(SSL *s, int trust)
484 return X509_VERIFY_PARAM_set_trust(s->param, trust);
487 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
489 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
492 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
494 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
497 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
502 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
507 void SSL_certs_clear(SSL *s)
509 ssl_cert_clear_certs(s->cert);
512 void SSL_free(SSL *s)
519 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL);
527 fprintf(stderr, "SSL_free, bad reference count\n");
533 X509_VERIFY_PARAM_free(s->param);
535 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
537 if (s->bbio != NULL) {
538 /* If the buffering BIO is in place, pop it off */
539 if (s->bbio == s->wbio) {
540 s->wbio = BIO_pop(s->wbio);
546 BIO_free_all(s->rbio);
547 if ((s->wbio != NULL) && (s->wbio != s->rbio))
548 BIO_free_all(s->wbio);
550 if (s->init_buf != NULL)
551 BUF_MEM_free(s->init_buf);
553 /* add extra stuff */
554 if (s->cipher_list != NULL)
555 sk_SSL_CIPHER_free(s->cipher_list);
556 if (s->cipher_list_by_id != NULL)
557 sk_SSL_CIPHER_free(s->cipher_list_by_id);
559 /* Make the next call work :-) */
560 if (s->session != NULL) {
561 ssl_clear_bad_session(s);
562 SSL_SESSION_free(s->session);
565 ssl_clear_cipher_ctx(s);
566 ssl_clear_hash_ctx(&s->read_hash);
567 ssl_clear_hash_ctx(&s->write_hash);
570 ssl_cert_free(s->cert);
571 /* Free up if allocated */
573 #ifndef OPENSSL_NO_TLSEXT
574 if (s->tlsext_hostname)
575 OPENSSL_free(s->tlsext_hostname);
577 SSL_CTX_free(s->initial_ctx);
578 # ifndef OPENSSL_NO_EC
579 if (s->tlsext_ecpointformatlist)
580 OPENSSL_free(s->tlsext_ecpointformatlist);
581 if (s->tlsext_ellipticcurvelist)
582 OPENSSL_free(s->tlsext_ellipticcurvelist);
583 # endif /* OPENSSL_NO_EC */
584 if (s->tlsext_ocsp_exts)
585 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free);
586 if (s->tlsext_ocsp_ids)
587 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
588 if (s->tlsext_ocsp_resp)
589 OPENSSL_free(s->tlsext_ocsp_resp);
590 if (s->alpn_client_proto_list)
591 OPENSSL_free(s->alpn_client_proto_list);
594 if (s->client_CA != NULL)
595 sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free);
597 if (s->method != NULL)
598 s->method->ssl_free(s);
601 SSL_CTX_free(s->ctx);
603 #ifndef OPENSSL_NO_KRB5
604 if (s->kssl_ctx != NULL)
605 kssl_ctx_free(s->kssl_ctx);
606 #endif /* OPENSSL_NO_KRB5 */
608 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
609 if (s->next_proto_negotiated)
610 OPENSSL_free(s->next_proto_negotiated);
613 #ifndef OPENSSL_NO_SRTP
614 if (s->srtp_profiles)
615 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
621 void SSL_set_rbio(SSL *s, BIO *rbio)
623 if ((s->rbio != NULL) && (s->rbio != rbio))
624 BIO_free_all(s->rbio);
628 void SSL_set_wbio(SSL *s, BIO *wbio)
631 * If the output buffering BIO is still in place, remove it
633 if (s->bbio != NULL) {
634 if (s->wbio == s->bbio) {
635 s->wbio = s->wbio->next_bio;
636 s->bbio->next_bio = NULL;
639 if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio))
640 BIO_free_all(s->wbio);
644 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
646 SSL_set_wbio(s, wbio);
647 SSL_set_rbio(s, rbio);
650 BIO *SSL_get_rbio(const SSL *s)
655 BIO *SSL_get_wbio(const SSL *s)
660 int SSL_get_fd(const SSL *s)
662 return (SSL_get_rfd(s));
665 int SSL_get_rfd(const SSL *s)
671 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
677 int SSL_get_wfd(const SSL *s)
683 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
689 #ifndef OPENSSL_NO_SOCK
690 int SSL_set_fd(SSL *s, int fd)
695 bio = BIO_new(BIO_s_socket());
698 SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB);
701 BIO_set_fd(bio, fd, BIO_NOCLOSE);
702 SSL_set_bio(s, bio, bio);
708 int SSL_set_wfd(SSL *s, int fd)
713 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
714 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) {
715 bio = BIO_new(BIO_s_socket());
718 SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB);
721 BIO_set_fd(bio, fd, BIO_NOCLOSE);
722 SSL_set_bio(s, SSL_get_rbio(s), bio);
724 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s));
730 int SSL_set_rfd(SSL *s, int fd)
735 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
736 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) {
737 bio = BIO_new(BIO_s_socket());
740 SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB);
743 BIO_set_fd(bio, fd, BIO_NOCLOSE);
744 SSL_set_bio(s, bio, SSL_get_wbio(s));
746 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s));
753 /* return length of latest Finished message we sent, copy to 'buf' */
754 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
759 ret = s->s3->tmp.finish_md_len;
762 memcpy(buf, s->s3->tmp.finish_md, count);
767 /* return length of latest Finished message we expected, copy to 'buf' */
768 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
773 ret = s->s3->tmp.peer_finish_md_len;
776 memcpy(buf, s->s3->tmp.peer_finish_md, count);
781 int SSL_get_verify_mode(const SSL *s)
783 return (s->verify_mode);
786 int SSL_get_verify_depth(const SSL *s)
788 return X509_VERIFY_PARAM_get_depth(s->param);
791 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
792 return (s->verify_callback);
795 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
797 return (ctx->verify_mode);
800 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
802 return X509_VERIFY_PARAM_get_depth(ctx->param);
805 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
806 return (ctx->default_verify_callback);
809 void SSL_set_verify(SSL *s, int mode,
810 int (*callback) (int ok, X509_STORE_CTX *ctx))
812 s->verify_mode = mode;
813 if (callback != NULL)
814 s->verify_callback = callback;
817 void SSL_set_verify_depth(SSL *s, int depth)
819 X509_VERIFY_PARAM_set_depth(s->param, depth);
822 void SSL_set_read_ahead(SSL *s, int yes)
827 int SSL_get_read_ahead(const SSL *s)
829 return (s->read_ahead);
832 int SSL_pending(const SSL *s)
835 * SSL_pending cannot work properly if read-ahead is enabled
836 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
837 * impossible to fix since SSL_pending cannot report errors that may be
838 * observed while scanning the new data. (Note that SSL_pending() is
839 * often used as a boolean value, so we'd better not return -1.)
841 return (s->method->ssl_pending(s));
844 X509 *SSL_get_peer_certificate(const SSL *s)
848 if ((s == NULL) || (s->session == NULL))
851 r = s->session->peer;
856 CRYPTO_add(&r->references, 1, CRYPTO_LOCK_X509);
861 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
865 if ((s == NULL) || (s->session == NULL)
866 || (s->session->sess_cert == NULL))
869 r = s->session->sess_cert->cert_chain;
872 * If we are a client, cert_chain includes the peer's own certificate; if
873 * we are a server, it does not.
880 * Now in theory, since the calling process own 't' it should be safe to
881 * modify. We need to be able to read f without being hassled
883 void SSL_copy_session_id(SSL *t, const SSL *f)
887 /* Do we need to to SSL locking? */
888 SSL_set_session(t, SSL_get_session(f));
891 * what if we are setup as SSLv2 but want to talk SSLv3 or vice-versa
893 if (t->method != f->method) {
894 t->method->ssl_free(t); /* cleanup current */
895 t->method = f->method; /* change method */
896 t->method->ssl_new(t); /* setup new */
900 if (f->cert != NULL) {
901 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT);
907 SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length);
910 /* Fix this so it checks all the valid key/cert options */
911 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
914 (ctx->cert == NULL) || (ctx->cert->key->x509 == NULL)) {
915 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
916 SSL_R_NO_CERTIFICATE_ASSIGNED);
919 if (ctx->cert->key->privatekey == NULL) {
920 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
921 SSL_R_NO_PRIVATE_KEY_ASSIGNED);
924 return (X509_check_private_key
925 (ctx->cert->key->x509, ctx->cert->key->privatekey));
928 /* Fix this function so that it takes an optional type parameter */
929 int SSL_check_private_key(const SSL *ssl)
932 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
935 if (ssl->cert == NULL) {
936 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
939 if (ssl->cert->key->x509 == NULL) {
940 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
943 if (ssl->cert->key->privatekey == NULL) {
944 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
947 return (X509_check_private_key(ssl->cert->key->x509,
948 ssl->cert->key->privatekey));
951 int SSL_accept(SSL *s)
953 if (s->handshake_func == 0)
954 /* Not properly initialized yet */
955 SSL_set_accept_state(s);
957 return (s->method->ssl_accept(s));
960 int SSL_connect(SSL *s)
962 if (s->handshake_func == 0)
963 /* Not properly initialized yet */
964 SSL_set_connect_state(s);
966 return (s->method->ssl_connect(s));
969 long SSL_get_default_timeout(const SSL *s)
971 return (s->method->get_timeout());
974 int SSL_read(SSL *s, void *buf, int num)
976 if (s->handshake_func == 0) {
977 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
981 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
982 s->rwstate = SSL_NOTHING;
985 return (s->method->ssl_read(s, buf, num));
988 int SSL_peek(SSL *s, void *buf, int num)
990 if (s->handshake_func == 0) {
991 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
995 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
998 return (s->method->ssl_peek(s, buf, num));
1001 int SSL_write(SSL *s, const void *buf, int num)
1003 if (s->handshake_func == 0) {
1004 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
1008 if (s->shutdown & SSL_SENT_SHUTDOWN) {
1009 s->rwstate = SSL_NOTHING;
1010 SSLerr(SSL_F_SSL_WRITE, SSL_R_PROTOCOL_IS_SHUTDOWN);
1013 return (s->method->ssl_write(s, buf, num));
1016 int SSL_shutdown(SSL *s)
1019 * Note that this function behaves differently from what one might
1020 * expect. Return values are 0 for no success (yet), 1 for success; but
1021 * calling it once is usually not enough, even if blocking I/O is used
1022 * (see ssl3_shutdown).
1025 if (s->handshake_func == 0) {
1026 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
1030 if ((s != NULL) && !SSL_in_init(s))
1031 return (s->method->ssl_shutdown(s));
1036 int SSL_renegotiate(SSL *s)
1038 if (s->renegotiate == 0)
1043 return (s->method->ssl_renegotiate(s));
1046 int SSL_renegotiate_abbreviated(SSL *s)
1048 if (s->renegotiate == 0)
1053 return (s->method->ssl_renegotiate(s));
1056 int SSL_renegotiate_pending(SSL *s)
1059 * becomes true when negotiation is requested; false again once a
1060 * handshake has finished
1062 return (s->renegotiate != 0);
1065 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
1070 case SSL_CTRL_GET_READ_AHEAD:
1071 return (s->read_ahead);
1072 case SSL_CTRL_SET_READ_AHEAD:
1074 s->read_ahead = larg;
1077 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1078 s->msg_callback_arg = parg;
1081 case SSL_CTRL_OPTIONS:
1082 return (s->options |= larg);
1083 case SSL_CTRL_CLEAR_OPTIONS:
1084 return (s->options &= ~larg);
1086 return (s->mode |= larg);
1087 case SSL_CTRL_CLEAR_MODE:
1088 return (s->mode &= ~larg);
1089 case SSL_CTRL_GET_MAX_CERT_LIST:
1090 return (s->max_cert_list);
1091 case SSL_CTRL_SET_MAX_CERT_LIST:
1092 l = s->max_cert_list;
1093 s->max_cert_list = larg;
1095 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1096 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1098 s->max_send_fragment = larg;
1100 case SSL_CTRL_GET_RI_SUPPORT:
1102 return s->s3->send_connection_binding;
1105 case SSL_CTRL_CERT_FLAGS:
1106 return (s->cert->cert_flags |= larg);
1107 case SSL_CTRL_CLEAR_CERT_FLAGS:
1108 return (s->cert->cert_flags &= ~larg);
1110 case SSL_CTRL_GET_RAW_CIPHERLIST:
1112 if (s->cert->ciphers_raw == NULL)
1114 *(unsigned char **)parg = s->cert->ciphers_raw;
1115 return (int)s->cert->ciphers_rawlen;
1117 return ssl_put_cipher_by_char(s, NULL, NULL);
1118 case SSL_CTRL_GET_EXTMS_SUPPORT:
1119 if (!s->session || SSL_in_init(s) || s->in_handshake)
1121 if (s->session->flags & SSL_SESS_FLAG_EXTMS)
1126 return (s->method->ssl_ctrl(s, cmd, larg, parg));
1130 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
1133 case SSL_CTRL_SET_MSG_CALLBACK:
1134 s->msg_callback = (void (*)
1135 (int write_p, int version, int content_type,
1136 const void *buf, size_t len, SSL *ssl,
1141 return (s->method->ssl_callback_ctrl(s, cmd, fp));
1145 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1147 return ctx->sessions;
1150 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
1153 /* For some cases with ctx == NULL perform syntax checks */
1156 #ifndef OPENSSL_NO_EC
1157 case SSL_CTRL_SET_CURVES_LIST:
1158 return tls1_set_curves_list(NULL, NULL, parg);
1160 case SSL_CTRL_SET_SIGALGS_LIST:
1161 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
1162 return tls1_set_sigalgs_list(NULL, parg, 0);
1169 case SSL_CTRL_GET_READ_AHEAD:
1170 return (ctx->read_ahead);
1171 case SSL_CTRL_SET_READ_AHEAD:
1172 l = ctx->read_ahead;
1173 ctx->read_ahead = larg;
1176 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1177 ctx->msg_callback_arg = parg;
1180 case SSL_CTRL_GET_MAX_CERT_LIST:
1181 return (ctx->max_cert_list);
1182 case SSL_CTRL_SET_MAX_CERT_LIST:
1183 l = ctx->max_cert_list;
1184 ctx->max_cert_list = larg;
1187 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1188 l = ctx->session_cache_size;
1189 ctx->session_cache_size = larg;
1191 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1192 return (ctx->session_cache_size);
1193 case SSL_CTRL_SET_SESS_CACHE_MODE:
1194 l = ctx->session_cache_mode;
1195 ctx->session_cache_mode = larg;
1197 case SSL_CTRL_GET_SESS_CACHE_MODE:
1198 return (ctx->session_cache_mode);
1200 case SSL_CTRL_SESS_NUMBER:
1201 return (lh_SSL_SESSION_num_items(ctx->sessions));
1202 case SSL_CTRL_SESS_CONNECT:
1203 return (ctx->stats.sess_connect);
1204 case SSL_CTRL_SESS_CONNECT_GOOD:
1205 return (ctx->stats.sess_connect_good);
1206 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1207 return (ctx->stats.sess_connect_renegotiate);
1208 case SSL_CTRL_SESS_ACCEPT:
1209 return (ctx->stats.sess_accept);
1210 case SSL_CTRL_SESS_ACCEPT_GOOD:
1211 return (ctx->stats.sess_accept_good);
1212 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1213 return (ctx->stats.sess_accept_renegotiate);
1214 case SSL_CTRL_SESS_HIT:
1215 return (ctx->stats.sess_hit);
1216 case SSL_CTRL_SESS_CB_HIT:
1217 return (ctx->stats.sess_cb_hit);
1218 case SSL_CTRL_SESS_MISSES:
1219 return (ctx->stats.sess_miss);
1220 case SSL_CTRL_SESS_TIMEOUTS:
1221 return (ctx->stats.sess_timeout);
1222 case SSL_CTRL_SESS_CACHE_FULL:
1223 return (ctx->stats.sess_cache_full);
1224 case SSL_CTRL_OPTIONS:
1225 return (ctx->options |= larg);
1226 case SSL_CTRL_CLEAR_OPTIONS:
1227 return (ctx->options &= ~larg);
1229 return (ctx->mode |= larg);
1230 case SSL_CTRL_CLEAR_MODE:
1231 return (ctx->mode &= ~larg);
1232 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1233 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1235 ctx->max_send_fragment = larg;
1237 case SSL_CTRL_CERT_FLAGS:
1238 return (ctx->cert->cert_flags |= larg);
1239 case SSL_CTRL_CLEAR_CERT_FLAGS:
1240 return (ctx->cert->cert_flags &= ~larg);
1242 return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg));
1246 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
1249 case SSL_CTRL_SET_MSG_CALLBACK:
1250 ctx->msg_callback = (void (*)
1251 (int write_p, int version, int content_type,
1252 const void *buf, size_t len, SSL *ssl,
1257 return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp));
1261 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1269 return ((l > 0) ? 1 : -1);
1272 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
1273 const SSL_CIPHER *const *bp)
1277 l = (*ap)->id - (*bp)->id;
1281 return ((l > 0) ? 1 : -1);
1284 /** return a STACK of the ciphers available for the SSL and in order of
1286 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1289 if (s->cipher_list != NULL) {
1290 return (s->cipher_list);
1291 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
1292 return (s->ctx->cipher_list);
1298 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
1300 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
1302 ciphers = SSL_get_ciphers(s);
1305 ssl_set_client_disabled(s);
1306 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
1307 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
1308 if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED)) {
1310 sk = sk_SSL_CIPHER_new_null();
1313 if (!sk_SSL_CIPHER_push(sk, c)) {
1314 sk_SSL_CIPHER_free(sk);
1322 /** return a STACK of the ciphers available for the SSL and in order of
1324 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1327 if (s->cipher_list_by_id != NULL) {
1328 return (s->cipher_list_by_id);
1329 } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) {
1330 return (s->ctx->cipher_list_by_id);
1336 /** The old interface to get the same thing as SSL_get_ciphers() */
1337 const char *SSL_get_cipher_list(const SSL *s, int n)
1340 STACK_OF(SSL_CIPHER) *sk;
1344 sk = SSL_get_ciphers(s);
1345 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1347 c = sk_SSL_CIPHER_value(sk, n);
1353 /** specify the ciphers to be used by default by the SSL_CTX */
1354 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1356 STACK_OF(SSL_CIPHER) *sk;
1358 sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list,
1359 &ctx->cipher_list_by_id, str, ctx->cert);
1361 * ssl_create_cipher_list may return an empty stack if it was unable to
1362 * find a cipher matching the given rule string (for example if the rule
1363 * string specifies a cipher which has been disabled). This is not an
1364 * error as far as ssl_create_cipher_list is concerned, and hence
1365 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
1369 else if (sk_SSL_CIPHER_num(sk) == 0) {
1370 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1376 /** specify the ciphers to be used by the SSL */
1377 int SSL_set_cipher_list(SSL *s, const char *str)
1379 STACK_OF(SSL_CIPHER) *sk;
1381 sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list,
1382 &s->cipher_list_by_id, str, s->cert);
1383 /* see comment in SSL_CTX_set_cipher_list */
1386 else if (sk_SSL_CIPHER_num(sk) == 0) {
1387 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1393 /* works well for SSLv2, not so good for SSLv3 */
1394 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len)
1397 STACK_OF(SSL_CIPHER) *sk;
1401 if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2))
1405 sk = s->session->ciphers;
1407 if (sk_SSL_CIPHER_num(sk) == 0)
1410 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
1413 c = sk_SSL_CIPHER_value(sk, i);
1414 n = strlen(c->name);
1430 int ssl_cipher_list_to_bytes(SSL *s, STACK_OF(SSL_CIPHER) *sk,
1432 int (*put_cb) (const SSL_CIPHER *,
1438 int empty_reneg_info_scsv = !s->renegotiate;
1439 /* Set disabled masks for this session */
1440 ssl_set_client_disabled(s);
1446 put_cb = s->method->put_cipher_by_char;
1448 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
1449 c = sk_SSL_CIPHER_value(sk, i);
1450 /* Skip disabled ciphers */
1451 if (ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED))
1453 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
1454 if (c->id == SSL3_CK_SCSV) {
1455 if (!empty_reneg_info_scsv)
1458 empty_reneg_info_scsv = 0;
1465 * If p == q, no ciphers; caller indicates an error. Otherwise, add
1469 if (empty_reneg_info_scsv) {
1470 static SSL_CIPHER scsv = {
1471 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
1473 j = put_cb(&scsv, p);
1475 #ifdef OPENSSL_RI_DEBUG
1477 "TLS_EMPTY_RENEGOTIATION_INFO_SCSV sent by client\n");
1480 if (s->mode & SSL_MODE_SEND_FALLBACK_SCSV) {
1481 static SSL_CIPHER scsv = {
1482 0, NULL, SSL3_CK_FALLBACK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
1484 j = put_cb(&scsv, p);
1492 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s, unsigned char *p,
1494 STACK_OF(SSL_CIPHER) **skp)
1496 const SSL_CIPHER *c;
1497 STACK_OF(SSL_CIPHER) *sk;
1501 s->s3->send_connection_binding = 0;
1503 n = ssl_put_cipher_by_char(s, NULL, NULL);
1504 if (n == 0 || (num % n) != 0) {
1505 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,
1506 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1509 if ((skp == NULL) || (*skp == NULL))
1510 sk = sk_SSL_CIPHER_new_null(); /* change perhaps later */
1513 sk_SSL_CIPHER_zero(sk);
1516 if (s->cert->ciphers_raw)
1517 OPENSSL_free(s->cert->ciphers_raw);
1518 s->cert->ciphers_raw = BUF_memdup(p, num);
1519 if (s->cert->ciphers_raw == NULL) {
1520 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
1523 s->cert->ciphers_rawlen = (size_t)num;
1525 for (i = 0; i < num; i += n) {
1526 /* Check for TLS_EMPTY_RENEGOTIATION_INFO_SCSV */
1527 if (s->s3 && (n != 3 || !p[0]) &&
1528 (p[n - 2] == ((SSL3_CK_SCSV >> 8) & 0xff)) &&
1529 (p[n - 1] == (SSL3_CK_SCSV & 0xff))) {
1530 /* SCSV fatal if renegotiating */
1531 if (s->renegotiate) {
1532 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,
1533 SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);
1534 ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE);
1537 s->s3->send_connection_binding = 1;
1539 #ifdef OPENSSL_RI_DEBUG
1540 fprintf(stderr, "SCSV received by server\n");
1545 /* Check for TLS_FALLBACK_SCSV */
1546 if ((n != 3 || !p[0]) &&
1547 (p[n - 2] == ((SSL3_CK_FALLBACK_SCSV >> 8) & 0xff)) &&
1548 (p[n - 1] == (SSL3_CK_FALLBACK_SCSV & 0xff))) {
1550 * The SCSV indicates that the client previously tried a higher
1551 * version. Fail if the current version is an unexpected
1554 if (!SSL_ctrl(s, SSL_CTRL_CHECK_PROTO_VERSION, 0, NULL)) {
1555 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,
1556 SSL_R_INAPPROPRIATE_FALLBACK);
1558 ssl3_send_alert(s, SSL3_AL_FATAL,
1559 SSL_AD_INAPPROPRIATE_FALLBACK);
1566 c = ssl_get_cipher_by_char(s, p);
1569 if (!sk_SSL_CIPHER_push(sk, c)) {
1570 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
1580 if ((skp == NULL) || (*skp == NULL))
1581 sk_SSL_CIPHER_free(sk);
1585 #ifndef OPENSSL_NO_TLSEXT
1586 /** return a servername extension value if provided in Client Hello, or NULL.
1587 * So far, only host_name types are defined (RFC 3546).
1590 const char *SSL_get_servername(const SSL *s, const int type)
1592 if (type != TLSEXT_NAMETYPE_host_name)
1595 return s->session && !s->tlsext_hostname ?
1596 s->session->tlsext_hostname : s->tlsext_hostname;
1599 int SSL_get_servername_type(const SSL *s)
1602 && (!s->tlsext_hostname ? s->session->
1603 tlsext_hostname : s->tlsext_hostname))
1604 return TLSEXT_NAMETYPE_host_name;
1609 * SSL_select_next_proto implements the standard protocol selection. It is
1610 * expected that this function is called from the callback set by
1611 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
1612 * vector of 8-bit, length prefixed byte strings. The length byte itself is
1613 * not included in the length. A byte string of length 0 is invalid. No byte
1614 * string may be truncated. The current, but experimental algorithm for
1615 * selecting the protocol is: 1) If the server doesn't support NPN then this
1616 * is indicated to the callback. In this case, the client application has to
1617 * abort the connection or have a default application level protocol. 2) If
1618 * the server supports NPN, but advertises an empty list then the client
1619 * selects the first protcol in its list, but indicates via the API that this
1620 * fallback case was enacted. 3) Otherwise, the client finds the first
1621 * protocol in the server's list that it supports and selects this protocol.
1622 * This is because it's assumed that the server has better information about
1623 * which protocol a client should use. 4) If the client doesn't support any
1624 * of the server's advertised protocols, then this is treated the same as
1625 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
1626 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1628 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
1629 const unsigned char *server,
1630 unsigned int server_len,
1631 const unsigned char *client,
1632 unsigned int client_len)
1635 const unsigned char *result;
1636 int status = OPENSSL_NPN_UNSUPPORTED;
1639 * For each protocol in server preference order, see if we support it.
1641 for (i = 0; i < server_len;) {
1642 for (j = 0; j < client_len;) {
1643 if (server[i] == client[j] &&
1644 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
1645 /* We found a match */
1646 result = &server[i];
1647 status = OPENSSL_NPN_NEGOTIATED;
1657 /* There's no overlap between our protocols and the server's list. */
1659 status = OPENSSL_NPN_NO_OVERLAP;
1662 *out = (unsigned char *)result + 1;
1663 *outlen = result[0];
1667 # ifndef OPENSSL_NO_NEXTPROTONEG
1669 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
1670 * client's requested protocol for this connection and returns 0. If the
1671 * client didn't request any protocol, then *data is set to NULL. Note that
1672 * the client can request any protocol it chooses. The value returned from
1673 * this function need not be a member of the list of supported protocols
1674 * provided by the callback.
1676 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
1679 *data = s->next_proto_negotiated;
1683 *len = s->next_proto_negotiated_len;
1688 * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when
1689 * a TLS server needs a list of supported protocols for Next Protocol
1690 * Negotiation. The returned list must be in wire format. The list is
1691 * returned by setting |out| to point to it and |outlen| to its length. This
1692 * memory will not be modified, but one should assume that the SSL* keeps a
1693 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
1694 * wishes to advertise. Otherwise, no such extension will be included in the
1697 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx,
1698 int (*cb) (SSL *ssl,
1701 unsigned int *outlen,
1702 void *arg), void *arg)
1704 ctx->next_protos_advertised_cb = cb;
1705 ctx->next_protos_advertised_cb_arg = arg;
1709 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1710 * client needs to select a protocol from the server's provided list. |out|
1711 * must be set to point to the selected protocol (which may be within |in|).
1712 * The length of the protocol name must be written into |outlen|. The
1713 * server's advertised protocols are provided in |in| and |inlen|. The
1714 * callback can assume that |in| is syntactically valid. The client must
1715 * select a protocol. It is fatal to the connection if this callback returns
1716 * a value other than SSL_TLSEXT_ERR_OK.
1718 void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx,
1719 int (*cb) (SSL *s, unsigned char **out,
1720 unsigned char *outlen,
1721 const unsigned char *in,
1723 void *arg), void *arg)
1725 ctx->next_proto_select_cb = cb;
1726 ctx->next_proto_select_cb_arg = arg;
1731 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
1732 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1733 * length-prefixed strings). Returns 0 on success.
1735 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
1736 unsigned protos_len)
1738 if (ctx->alpn_client_proto_list)
1739 OPENSSL_free(ctx->alpn_client_proto_list);
1741 ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1742 if (!ctx->alpn_client_proto_list)
1744 memcpy(ctx->alpn_client_proto_list, protos, protos_len);
1745 ctx->alpn_client_proto_list_len = protos_len;
1751 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
1752 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1753 * length-prefixed strings). Returns 0 on success.
1755 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
1756 unsigned protos_len)
1758 if (ssl->alpn_client_proto_list)
1759 OPENSSL_free(ssl->alpn_client_proto_list);
1761 ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1762 if (!ssl->alpn_client_proto_list)
1764 memcpy(ssl->alpn_client_proto_list, protos, protos_len);
1765 ssl->alpn_client_proto_list_len = protos_len;
1771 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
1772 * called during ClientHello processing in order to select an ALPN protocol
1773 * from the client's list of offered protocols.
1775 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
1776 int (*cb) (SSL *ssl,
1777 const unsigned char **out,
1778 unsigned char *outlen,
1779 const unsigned char *in,
1781 void *arg), void *arg)
1783 ctx->alpn_select_cb = cb;
1784 ctx->alpn_select_cb_arg = arg;
1788 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from
1789 * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name
1790 * (not including the leading length-prefix byte). If the server didn't
1791 * respond with a negotiated protocol then |*len| will be zero.
1793 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
1798 *data = ssl->s3->alpn_selected;
1802 *len = ssl->s3->alpn_selected_len;
1805 #endif /* !OPENSSL_NO_TLSEXT */
1807 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1808 const char *label, size_t llen,
1809 const unsigned char *p, size_t plen,
1812 if (s->version < TLS1_VERSION)
1815 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
1820 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1825 ((unsigned int)a->session_id[0]) |
1826 ((unsigned int)a->session_id[1] << 8L) |
1827 ((unsigned long)a->session_id[2] << 16L) |
1828 ((unsigned long)a->session_id[3] << 24L);
1833 * NB: If this function (or indeed the hash function which uses a sort of
1834 * coarser function than this one) is changed, ensure
1835 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
1836 * being able to construct an SSL_SESSION that will collide with any existing
1837 * session with a matching session ID.
1839 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
1841 if (a->ssl_version != b->ssl_version)
1843 if (a->session_id_length != b->session_id_length)
1845 return (memcmp(a->session_id, b->session_id, a->session_id_length));
1849 * These wrapper functions should remain rather than redeclaring
1850 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1851 * variable. The reason is that the functions aren't static, they're exposed
1854 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1855 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1857 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1859 SSL_CTX *ret = NULL;
1862 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED);
1866 if (FIPS_mode() && (meth->version < TLS1_VERSION)) {
1867 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1871 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
1872 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1875 ret = (SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1879 memset(ret, 0, sizeof(SSL_CTX));
1883 ret->cert_store = NULL;
1884 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
1885 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1886 ret->session_cache_head = NULL;
1887 ret->session_cache_tail = NULL;
1889 /* We take the system default */
1890 ret->session_timeout = meth->get_timeout();
1892 ret->new_session_cb = 0;
1893 ret->remove_session_cb = 0;
1894 ret->get_session_cb = 0;
1895 ret->generate_session_id = 0;
1897 memset((char *)&ret->stats, 0, sizeof(ret->stats));
1899 ret->references = 1;
1900 ret->quiet_shutdown = 0;
1901 ret->info_callback = NULL;
1902 ret->app_verify_callback = 0;
1903 ret->app_verify_arg = NULL;
1904 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
1905 ret->read_ahead = 0;
1906 ret->msg_callback = 0;
1907 ret->msg_callback_arg = NULL;
1908 ret->verify_mode = SSL_VERIFY_NONE;
1909 ret->sid_ctx_length = 0;
1910 ret->default_verify_callback = NULL;
1911 if ((ret->cert = ssl_cert_new()) == NULL)
1914 ret->default_passwd_callback = 0;
1915 ret->default_passwd_callback_userdata = NULL;
1916 ret->client_cert_cb = 0;
1917 ret->app_gen_cookie_cb = 0;
1918 ret->app_verify_cookie_cb = 0;
1920 ret->sessions = lh_SSL_SESSION_new();
1921 if (ret->sessions == NULL)
1923 ret->cert_store = X509_STORE_new();
1924 if (ret->cert_store == NULL)
1927 ssl_create_cipher_list(ret->method,
1928 &ret->cipher_list, &ret->cipher_list_by_id,
1929 SSL_DEFAULT_CIPHER_LIST, ret->cert);
1930 if (ret->cipher_list == NULL || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
1931 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);
1935 ret->param = X509_VERIFY_PARAM_new();
1939 if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {
1940 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1943 if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) {
1944 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1948 if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL)
1951 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1953 ret->extra_certs = NULL;
1954 /* No compression for DTLS */
1955 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
1956 ret->comp_methods = SSL_COMP_get_compression_methods();
1958 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1960 #ifndef OPENSSL_NO_TLSEXT
1961 ret->tlsext_servername_callback = 0;
1962 ret->tlsext_servername_arg = NULL;
1963 /* Setup RFC4507 ticket keys */
1964 if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1965 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1966 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1967 ret->options |= SSL_OP_NO_TICKET;
1969 ret->tlsext_status_cb = 0;
1970 ret->tlsext_status_arg = NULL;
1972 # ifndef OPENSSL_NO_NEXTPROTONEG
1973 ret->next_protos_advertised_cb = 0;
1974 ret->next_proto_select_cb = 0;
1977 #ifndef OPENSSL_NO_PSK
1978 ret->psk_identity_hint = NULL;
1979 ret->psk_client_callback = NULL;
1980 ret->psk_server_callback = NULL;
1982 #ifndef OPENSSL_NO_SRP
1983 SSL_CTX_SRP_CTX_init(ret);
1985 #ifndef OPENSSL_NO_ENGINE
1986 ret->client_cert_engine = NULL;
1987 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1988 # define eng_strx(x) #x
1989 # define eng_str(x) eng_strx(x)
1990 /* Use specific client engine automatically... ignore errors */
1993 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1996 ENGINE_load_builtin_engines();
1997 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1999 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
2005 * Default is to connect to non-RI servers. When RI is more widely
2006 * deployed might change this.
2008 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
2012 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
2019 void SSL_CTX_free(SSL_CTX *a)
2026 i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_SSL_CTX);
2028 REF_PRINT("SSL_CTX", a);
2034 fprintf(stderr, "SSL_CTX_free, bad reference count\n");
2040 X509_VERIFY_PARAM_free(a->param);
2043 * Free internal session cache. However: the remove_cb() may reference
2044 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2045 * after the sessions were flushed.
2046 * As the ex_data handling routines might also touch the session cache,
2047 * the most secure solution seems to be: empty (flush) the cache, then
2048 * free ex_data, then finally free the cache.
2049 * (See ticket [openssl.org #212].)
2051 if (a->sessions != NULL)
2052 SSL_CTX_flush_sessions(a, 0);
2054 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
2056 if (a->sessions != NULL)
2057 lh_SSL_SESSION_free(a->sessions);
2059 if (a->cert_store != NULL)
2060 X509_STORE_free(a->cert_store);
2061 if (a->cipher_list != NULL)
2062 sk_SSL_CIPHER_free(a->cipher_list);
2063 if (a->cipher_list_by_id != NULL)
2064 sk_SSL_CIPHER_free(a->cipher_list_by_id);
2065 if (a->cert != NULL)
2066 ssl_cert_free(a->cert);
2067 if (a->client_CA != NULL)
2068 sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free);
2069 if (a->extra_certs != NULL)
2070 sk_X509_pop_free(a->extra_certs, X509_free);
2071 a->comp_methods = NULL;
2073 #ifndef OPENSSL_NO_SRTP
2074 if (a->srtp_profiles)
2075 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
2078 #ifndef OPENSSL_NO_PSK
2079 if (a->psk_identity_hint)
2080 OPENSSL_free(a->psk_identity_hint);
2082 #ifndef OPENSSL_NO_SRP
2083 SSL_CTX_SRP_CTX_free(a);
2085 #ifndef OPENSSL_NO_ENGINE
2086 if (a->client_cert_engine)
2087 ENGINE_finish(a->client_cert_engine);
2090 #ifndef OPENSSL_NO_TLSEXT
2091 # ifndef OPENSSL_NO_EC
2092 if (a->tlsext_ecpointformatlist)
2093 OPENSSL_free(a->tlsext_ecpointformatlist);
2094 if (a->tlsext_ellipticcurvelist)
2095 OPENSSL_free(a->tlsext_ellipticcurvelist);
2096 # endif /* OPENSSL_NO_EC */
2097 if (a->alpn_client_proto_list != NULL)
2098 OPENSSL_free(a->alpn_client_proto_list);
2104 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
2106 ctx->default_passwd_callback = cb;
2109 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
2111 ctx->default_passwd_callback_userdata = u;
2114 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
2115 int (*cb) (X509_STORE_CTX *, void *),
2118 ctx->app_verify_callback = cb;
2119 ctx->app_verify_arg = arg;
2122 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
2123 int (*cb) (int, X509_STORE_CTX *))
2125 ctx->verify_mode = mode;
2126 ctx->default_verify_callback = cb;
2129 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
2131 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
2134 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg),
2137 ssl_cert_set_cert_cb(c->cert, cb, arg);
2140 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
2142 ssl_cert_set_cert_cb(s->cert, cb, arg);
2145 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
2148 int rsa_enc, rsa_tmp, rsa_sign, dh_tmp, dh_rsa, dh_dsa, dsa_sign;
2149 int rsa_enc_export, dh_rsa_export, dh_dsa_export;
2150 int rsa_tmp_export, dh_tmp_export, kl;
2151 unsigned long mask_k, mask_a, emask_k, emask_a;
2152 #ifndef OPENSSL_NO_EC
2153 int have_ecc_cert, ecdsa_ok, ecc_pkey_size;
2154 int have_ecdh_tmp, ecdh_ok;
2156 EVP_PKEY *ecc_pkey = NULL;
2157 int signature_nid = 0, pk_nid = 0, md_nid = 0;
2162 kl = SSL_C_EXPORT_PKEYLENGTH(cipher);
2164 #ifndef OPENSSL_NO_RSA
2165 rsa_tmp = (c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
2166 rsa_tmp_export = (c->rsa_tmp_cb != NULL ||
2167 (rsa_tmp && RSA_size(c->rsa_tmp) * 8 <= kl));
2169 rsa_tmp = rsa_tmp_export = 0;
2171 #ifndef OPENSSL_NO_DH
2172 dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto);
2173 dh_tmp_export = !c->dh_tmp_auto && (c->dh_tmp_cb != NULL ||
2175 && DH_size(c->dh_tmp) * 8 <= kl));
2177 dh_tmp = dh_tmp_export = 0;
2180 #ifndef OPENSSL_NO_EC
2181 have_ecdh_tmp = (c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
2183 cpk = &(c->pkeys[SSL_PKEY_RSA_ENC]);
2184 rsa_enc = cpk->valid_flags & CERT_PKEY_VALID;
2185 rsa_enc_export = (rsa_enc && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
2186 cpk = &(c->pkeys[SSL_PKEY_RSA_SIGN]);
2187 rsa_sign = cpk->valid_flags & CERT_PKEY_SIGN;
2188 cpk = &(c->pkeys[SSL_PKEY_DSA_SIGN]);
2189 dsa_sign = cpk->valid_flags & CERT_PKEY_SIGN;
2190 cpk = &(c->pkeys[SSL_PKEY_DH_RSA]);
2191 dh_rsa = cpk->valid_flags & CERT_PKEY_VALID;
2192 dh_rsa_export = (dh_rsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
2193 cpk = &(c->pkeys[SSL_PKEY_DH_DSA]);
2194 /* FIX THIS EAY EAY EAY */
2195 dh_dsa = cpk->valid_flags & CERT_PKEY_VALID;
2196 dh_dsa_export = (dh_dsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
2197 cpk = &(c->pkeys[SSL_PKEY_ECC]);
2198 #ifndef OPENSSL_NO_EC
2199 have_ecc_cert = cpk->valid_flags & CERT_PKEY_VALID;
2208 "rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2209 rsa_tmp, rsa_tmp_export, dh_tmp, have_ecdh_tmp, rsa_enc,
2210 rsa_enc_export, rsa_sign, dsa_sign, dh_rsa, dh_dsa);
2213 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2214 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2215 mask_k |= SSL_kGOST;
2216 mask_a |= SSL_aGOST01;
2218 cpk = &(c->pkeys[SSL_PKEY_GOST94]);
2219 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2220 mask_k |= SSL_kGOST;
2221 mask_a |= SSL_aGOST94;
2224 if (rsa_enc || (rsa_tmp && rsa_sign))
2226 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
2227 emask_k |= SSL_kRSA;
2230 emask_k |= SSL_kDHE;
2238 emask_k |= SSL_kDHr;
2243 emask_k |= SSL_kDHd;
2245 if (emask_k & (SSL_kDHr | SSL_kDHd))
2248 if (rsa_enc || rsa_sign) {
2250 emask_a |= SSL_aRSA;
2255 emask_a |= SSL_aDSS;
2258 mask_a |= SSL_aNULL;
2259 emask_a |= SSL_aNULL;
2261 #ifndef OPENSSL_NO_KRB5
2262 mask_k |= SSL_kKRB5;
2263 mask_a |= SSL_aKRB5;
2264 emask_k |= SSL_kKRB5;
2265 emask_a |= SSL_aKRB5;
2269 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
2270 * depending on the key usage extension.
2272 #ifndef OPENSSL_NO_EC
2273 if (have_ecc_cert) {
2274 cpk = &c->pkeys[SSL_PKEY_ECC];
2276 /* This call populates extension flags (ex_flags) */
2277 X509_check_purpose(x, -1, 0);
2278 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2279 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
2280 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2281 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
2282 if (!(cpk->valid_flags & CERT_PKEY_SIGN))
2284 ecc_pkey = X509_get_pubkey(x);
2285 ecc_pkey_size = (ecc_pkey != NULL) ? EVP_PKEY_bits(ecc_pkey) : 0;
2286 EVP_PKEY_free(ecc_pkey);
2287 if ((x->sig_alg) && (x->sig_alg->algorithm)) {
2288 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2289 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2293 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa) {
2294 mask_k |= SSL_kECDHr;
2295 mask_a |= SSL_aECDH;
2296 if (ecc_pkey_size <= 163) {
2297 emask_k |= SSL_kECDHr;
2298 emask_a |= SSL_aECDH;
2302 if (pk_nid == NID_X9_62_id_ecPublicKey) {
2303 mask_k |= SSL_kECDHe;
2304 mask_a |= SSL_aECDH;
2305 if (ecc_pkey_size <= 163) {
2306 emask_k |= SSL_kECDHe;
2307 emask_a |= SSL_aECDH;
2312 mask_a |= SSL_aECDSA;
2313 emask_a |= SSL_aECDSA;
2318 #ifndef OPENSSL_NO_EC
2319 if (have_ecdh_tmp) {
2320 mask_k |= SSL_kECDHE;
2321 emask_k |= SSL_kECDHE;
2325 #ifndef OPENSSL_NO_PSK
2328 emask_k |= SSL_kPSK;
2329 emask_a |= SSL_aPSK;
2334 c->export_mask_k = emask_k;
2335 c->export_mask_a = emask_a;
2339 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2340 #define ku_reject(x, usage) \
2341 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2343 #ifndef OPENSSL_NO_EC
2345 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2347 unsigned long alg_k, alg_a;
2348 EVP_PKEY *pkey = NULL;
2350 int signature_nid = 0, md_nid = 0, pk_nid = 0;
2351 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2353 alg_k = cs->algorithm_mkey;
2354 alg_a = cs->algorithm_auth;
2356 if (SSL_C_IS_EXPORT(cs)) {
2357 /* ECDH key length in export ciphers must be <= 163 bits */
2358 pkey = X509_get_pubkey(x);
2361 keysize = EVP_PKEY_bits(pkey);
2362 EVP_PKEY_free(pkey);
2367 /* This call populates the ex_flags field correctly */
2368 X509_check_purpose(x, -1, 0);
2369 if ((x->sig_alg) && (x->sig_alg->algorithm)) {
2370 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2371 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2373 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr) {
2374 /* key usage, if present, must allow key agreement */
2375 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT)) {
2376 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2377 SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2380 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION) {
2381 /* signature alg must be ECDSA */
2382 if (pk_nid != NID_X9_62_id_ecPublicKey) {
2383 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2384 SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2388 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION) {
2389 /* signature alg must be RSA */
2391 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa) {
2392 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2393 SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2398 if (alg_a & SSL_aECDSA) {
2399 /* key usage, if present, must allow signing */
2400 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE)) {
2401 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2402 SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2407 return 1; /* all checks are ok */
2412 static int ssl_get_server_cert_index(const SSL *s)
2415 idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2416 if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2417 idx = SSL_PKEY_RSA_SIGN;
2419 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX, ERR_R_INTERNAL_ERROR);
2423 CERT_PKEY *ssl_get_server_send_pkey(const SSL *s)
2429 if (!s->s3 || !s->s3->tmp.new_cipher)
2431 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
2433 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2435 * Broken protocol test: return last used certificate: which may mismatch
2438 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2442 i = ssl_get_server_cert_index(s);
2444 /* This may or may not be an error. */
2449 return &c->pkeys[i];
2452 EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher,
2455 unsigned long alg_a;
2459 alg_a = cipher->algorithm_auth;
2462 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2464 * Broken protocol test: use last key: which may mismatch the one
2467 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2468 idx = c->key - c->pkeys;
2472 if ((alg_a & SSL_aDSS) &&
2473 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2474 idx = SSL_PKEY_DSA_SIGN;
2475 else if (alg_a & SSL_aRSA) {
2476 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2477 idx = SSL_PKEY_RSA_SIGN;
2478 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2479 idx = SSL_PKEY_RSA_ENC;
2480 } else if ((alg_a & SSL_aECDSA) &&
2481 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2484 SSLerr(SSL_F_SSL_GET_SIGN_PKEY, ERR_R_INTERNAL_ERROR);
2488 *pmd = c->pkeys[idx].digest;
2489 return c->pkeys[idx].privatekey;
2492 #ifndef OPENSSL_NO_TLSEXT
2493 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
2494 size_t *serverinfo_length)
2498 *serverinfo_length = 0;
2501 i = ssl_get_server_cert_index(s);
2505 if (c->pkeys[i].serverinfo == NULL)
2508 *serverinfo = c->pkeys[i].serverinfo;
2509 *serverinfo_length = c->pkeys[i].serverinfo_length;
2514 void ssl_update_cache(SSL *s, int mode)
2519 * If the session_id_length is 0, we are not supposed to cache it, and it
2520 * would be rather hard to do anyway :-)
2522 if (s->session->session_id_length == 0)
2525 i = s->session_ctx->session_cache_mode;
2526 if ((i & mode) && (!s->hit)
2527 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2528 || SSL_CTX_add_session(s->session_ctx, s->session))
2529 && (s->session_ctx->new_session_cb != NULL)) {
2530 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION);
2531 if (!s->session_ctx->new_session_cb(s, s->session))
2532 SSL_SESSION_free(s->session);
2535 /* auto flush every 255 connections */
2536 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
2537 if ((((mode & SSL_SESS_CACHE_CLIENT)
2538 ? s->session_ctx->stats.sess_connect_good
2539 : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) {
2540 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
2545 const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx)
2550 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2555 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2560 if (s->method != meth) {
2561 if (s->handshake_func != NULL)
2562 conn = (s->handshake_func == s->method->ssl_connect);
2564 if (s->method->version == meth->version)
2567 s->method->ssl_free(s);
2569 ret = s->method->ssl_new(s);
2573 s->handshake_func = meth->ssl_connect;
2575 s->handshake_func = meth->ssl_accept;
2580 int SSL_get_error(const SSL *s, int i)
2587 return (SSL_ERROR_NONE);
2590 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
2591 * where we do encode the error
2593 if ((l = ERR_peek_error()) != 0) {
2594 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2595 return (SSL_ERROR_SYSCALL);
2597 return (SSL_ERROR_SSL);
2600 if ((i < 0) && SSL_want_read(s)) {
2601 bio = SSL_get_rbio(s);
2602 if (BIO_should_read(bio))
2603 return (SSL_ERROR_WANT_READ);
2604 else if (BIO_should_write(bio))
2606 * This one doesn't make too much sense ... We never try to write
2607 * to the rbio, and an application program where rbio and wbio
2608 * are separate couldn't even know what it should wait for.
2609 * However if we ever set s->rwstate incorrectly (so that we have
2610 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
2611 * wbio *are* the same, this test works around that bug; so it
2612 * might be safer to keep it.
2614 return (SSL_ERROR_WANT_WRITE);
2615 else if (BIO_should_io_special(bio)) {
2616 reason = BIO_get_retry_reason(bio);
2617 if (reason == BIO_RR_CONNECT)
2618 return (SSL_ERROR_WANT_CONNECT);
2619 else if (reason == BIO_RR_ACCEPT)
2620 return (SSL_ERROR_WANT_ACCEPT);
2622 return (SSL_ERROR_SYSCALL); /* unknown */
2626 if ((i < 0) && SSL_want_write(s)) {
2627 bio = SSL_get_wbio(s);
2628 if (BIO_should_write(bio))
2629 return (SSL_ERROR_WANT_WRITE);
2630 else if (BIO_should_read(bio))
2632 * See above (SSL_want_read(s) with BIO_should_write(bio))
2634 return (SSL_ERROR_WANT_READ);
2635 else if (BIO_should_io_special(bio)) {
2636 reason = BIO_get_retry_reason(bio);
2637 if (reason == BIO_RR_CONNECT)
2638 return (SSL_ERROR_WANT_CONNECT);
2639 else if (reason == BIO_RR_ACCEPT)
2640 return (SSL_ERROR_WANT_ACCEPT);
2642 return (SSL_ERROR_SYSCALL);
2645 if ((i < 0) && SSL_want_x509_lookup(s)) {
2646 return (SSL_ERROR_WANT_X509_LOOKUP);
2650 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2651 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2652 return (SSL_ERROR_ZERO_RETURN);
2654 return (SSL_ERROR_SYSCALL);
2657 int SSL_do_handshake(SSL *s)
2661 if (s->handshake_func == NULL) {
2662 SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET);
2666 s->method->ssl_renegotiate_check(s);
2668 if (SSL_in_init(s) || SSL_in_before(s)) {
2669 ret = s->handshake_func(s);
2675 * For the next 2 functions, SSL_clear() sets shutdown and so one of these
2676 * calls will reset it
2678 void SSL_set_accept_state(SSL *s)
2682 s->state = SSL_ST_ACCEPT | SSL_ST_BEFORE;
2683 s->handshake_func = s->method->ssl_accept;
2684 /* clear the current cipher */
2685 ssl_clear_cipher_ctx(s);
2686 ssl_clear_hash_ctx(&s->read_hash);
2687 ssl_clear_hash_ctx(&s->write_hash);
2690 void SSL_set_connect_state(SSL *s)
2694 s->state = SSL_ST_CONNECT | SSL_ST_BEFORE;
2695 s->handshake_func = s->method->ssl_connect;
2696 /* clear the current cipher */
2697 ssl_clear_cipher_ctx(s);
2698 ssl_clear_hash_ctx(&s->read_hash);
2699 ssl_clear_hash_ctx(&s->write_hash);
2702 int ssl_undefined_function(SSL *s)
2704 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2708 int ssl_undefined_void_function(void)
2710 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,
2711 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2715 int ssl_undefined_const_function(const SSL *s)
2717 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,
2718 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2722 SSL_METHOD *ssl_bad_method(int ver)
2724 SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2728 const char *SSL_get_version(const SSL *s)
2730 if (s->version == TLS1_2_VERSION)
2732 else if (s->version == TLS1_1_VERSION)
2734 else if (s->version == TLS1_VERSION)
2736 else if (s->version == SSL3_VERSION)
2738 else if (s->version == DTLS1_BAD_VER)
2739 return ("DTLSv0.9");
2740 else if (s->version == DTLS1_VERSION)
2742 else if (s->version == DTLS1_2_VERSION)
2743 return ("DTLSv1.2");
2748 SSL *SSL_dup(SSL *s)
2750 STACK_OF(X509_NAME) *sk;
2755 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2758 ret->version = s->version;
2759 ret->type = s->type;
2760 ret->method = s->method;
2762 if (s->session != NULL) {
2763 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2764 SSL_copy_session_id(ret, s);
2767 * No session has been established yet, so we have to expect that
2768 * s->cert or ret->cert will be changed later -- they should not both
2769 * point to the same object, and thus we can't use
2770 * SSL_copy_session_id.
2773 ret->method->ssl_free(ret);
2774 ret->method = s->method;
2775 ret->method->ssl_new(ret);
2777 if (s->cert != NULL) {
2778 if (ret->cert != NULL) {
2779 ssl_cert_free(ret->cert);
2781 ret->cert = ssl_cert_dup(s->cert);
2782 if (ret->cert == NULL)
2786 SSL_set_session_id_context(ret, s->sid_ctx, s->sid_ctx_length);
2789 ret->options = s->options;
2790 ret->mode = s->mode;
2791 SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s));
2792 SSL_set_read_ahead(ret, SSL_get_read_ahead(s));
2793 ret->msg_callback = s->msg_callback;
2794 ret->msg_callback_arg = s->msg_callback_arg;
2795 SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s));
2796 SSL_set_verify_depth(ret, SSL_get_verify_depth(s));
2797 ret->generate_session_id = s->generate_session_id;
2799 SSL_set_info_callback(ret, SSL_get_info_callback(s));
2801 ret->debug = s->debug;
2803 /* copy app data, a little dangerous perhaps */
2804 if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data))
2807 /* setup rbio, and wbio */
2808 if (s->rbio != NULL) {
2809 if (!BIO_dup_state(s->rbio, (char *)&ret->rbio))
2812 if (s->wbio != NULL) {
2813 if (s->wbio != s->rbio) {
2814 if (!BIO_dup_state(s->wbio, (char *)&ret->wbio))
2817 ret->wbio = ret->rbio;
2819 ret->rwstate = s->rwstate;
2820 ret->in_handshake = s->in_handshake;
2821 ret->handshake_func = s->handshake_func;
2822 ret->server = s->server;
2823 ret->renegotiate = s->renegotiate;
2824 ret->new_session = s->new_session;
2825 ret->quiet_shutdown = s->quiet_shutdown;
2826 ret->shutdown = s->shutdown;
2827 ret->state = s->state; /* SSL_dup does not really work at any state,
2829 ret->rstate = s->rstate;
2830 ret->init_num = 0; /* would have to copy ret->init_buf,
2831 * ret->init_msg, ret->init_num,
2835 X509_VERIFY_PARAM_inherit(ret->param, s->param);
2837 /* dup the cipher_list and cipher_list_by_id stacks */
2838 if (s->cipher_list != NULL) {
2839 if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL)
2842 if (s->cipher_list_by_id != NULL)
2843 if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id))
2847 /* Dup the client_CA list */
2848 if (s->client_CA != NULL) {
2849 if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL)
2851 ret->client_CA = sk;
2852 for (i = 0; i < sk_X509_NAME_num(sk); i++) {
2853 xn = sk_X509_NAME_value(sk, i);
2854 if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) {
2870 void ssl_clear_cipher_ctx(SSL *s)
2872 if (s->enc_read_ctx != NULL) {
2873 EVP_CIPHER_CTX_cleanup(s->enc_read_ctx);
2874 OPENSSL_free(s->enc_read_ctx);
2875 s->enc_read_ctx = NULL;
2877 if (s->enc_write_ctx != NULL) {
2878 EVP_CIPHER_CTX_cleanup(s->enc_write_ctx);
2879 OPENSSL_free(s->enc_write_ctx);
2880 s->enc_write_ctx = NULL;
2882 #ifndef OPENSSL_NO_COMP
2883 if (s->expand != NULL) {
2884 COMP_CTX_free(s->expand);
2887 if (s->compress != NULL) {
2888 COMP_CTX_free(s->compress);
2894 X509 *SSL_get_certificate(const SSL *s)
2896 if (s->cert != NULL)
2897 return (s->cert->key->x509);
2902 EVP_PKEY *SSL_get_privatekey(const SSL *s)
2904 if (s->cert != NULL)
2905 return (s->cert->key->privatekey);
2910 X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx)
2912 if (ctx->cert != NULL)
2913 return ctx->cert->key->x509;
2918 EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx)
2920 if (ctx->cert != NULL)
2921 return ctx->cert->key->privatekey;
2926 const SSL_CIPHER *SSL_get_current_cipher(const SSL *s)
2928 if ((s->session != NULL) && (s->session->cipher != NULL))
2929 return (s->session->cipher);
2933 #ifdef OPENSSL_NO_COMP
2934 const void *SSL_get_current_compression(SSL *s)
2939 const void *SSL_get_current_expansion(SSL *s)
2945 const COMP_METHOD *SSL_get_current_compression(SSL *s)
2947 if (s->compress != NULL)
2948 return (s->compress->meth);
2952 const COMP_METHOD *SSL_get_current_expansion(SSL *s)
2954 if (s->expand != NULL)
2955 return (s->expand->meth);
2960 int ssl_init_wbio_buffer(SSL *s, int push)
2964 if (s->bbio == NULL) {
2965 bbio = BIO_new(BIO_f_buffer());
2971 if (s->bbio == s->wbio)
2972 s->wbio = BIO_pop(s->wbio);
2974 (void)BIO_reset(bbio);
2975 /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */
2976 if (!BIO_set_read_buffer_size(bbio, 1)) {
2977 SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB);
2981 if (s->wbio != bbio)
2982 s->wbio = BIO_push(bbio, s->wbio);
2984 if (s->wbio == bbio)
2985 s->wbio = BIO_pop(bbio);
2990 void ssl_free_wbio_buffer(SSL *s)
2992 if (s->bbio == NULL)
2995 if (s->bbio == s->wbio) {
2996 /* remove buffering */
2997 s->wbio = BIO_pop(s->wbio);
2998 #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids
2999 * adding one more preprocessor symbol */
3000 assert(s->wbio != NULL);
3007 void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode)
3009 ctx->quiet_shutdown = mode;
3012 int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx)
3014 return (ctx->quiet_shutdown);
3017 void SSL_set_quiet_shutdown(SSL *s, int mode)
3019 s->quiet_shutdown = mode;
3022 int SSL_get_quiet_shutdown(const SSL *s)
3024 return (s->quiet_shutdown);
3027 void SSL_set_shutdown(SSL *s, int mode)
3032 int SSL_get_shutdown(const SSL *s)
3034 return (s->shutdown);
3037 int SSL_version(const SSL *s)
3039 return (s->version);
3042 SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
3047 SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
3049 CERT *ocert = ssl->cert;
3050 if (ssl->ctx == ctx)
3052 #ifndef OPENSSL_NO_TLSEXT
3054 ctx = ssl->initial_ctx;
3056 ssl->cert = ssl_cert_dup(ctx->cert);
3058 /* Preserve any already negotiated parameters */
3060 ssl->cert->peer_sigalgs = ocert->peer_sigalgs;
3061 ssl->cert->peer_sigalgslen = ocert->peer_sigalgslen;
3062 ocert->peer_sigalgs = NULL;
3063 ssl->cert->ciphers_raw = ocert->ciphers_raw;
3064 ssl->cert->ciphers_rawlen = ocert->ciphers_rawlen;
3065 ocert->ciphers_raw = NULL;
3067 ssl_cert_free(ocert);
3071 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
3072 * so setter APIs must prevent invalid lengths from entering the system.
3074 OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx));
3077 * If the session ID context matches that of the parent SSL_CTX,
3078 * inherit it from the new SSL_CTX as well. If however the context does
3079 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
3080 * leave it unchanged.
3082 if ((ssl->ctx != NULL) &&
3083 (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
3084 (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) {
3085 ssl->sid_ctx_length = ctx->sid_ctx_length;
3086 memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx));
3089 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
3090 if (ssl->ctx != NULL)
3091 SSL_CTX_free(ssl->ctx); /* decrement reference count */
3097 #ifndef OPENSSL_NO_STDIO
3098 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
3100 return (X509_STORE_set_default_paths(ctx->cert_store));
3103 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
3106 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath));
3110 void SSL_set_info_callback(SSL *ssl,
3111 void (*cb) (const SSL *ssl, int type, int val))
3113 ssl->info_callback = cb;
3117 * One compiler (Diab DCC) doesn't like argument names in returned function
3120 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
3123 return ssl->info_callback;
3126 int SSL_state(const SSL *ssl)
3128 return (ssl->state);
3131 void SSL_set_state(SSL *ssl, int state)
3136 void SSL_set_verify_result(SSL *ssl, long arg)
3138 ssl->verify_result = arg;
3141 long SSL_get_verify_result(const SSL *ssl)
3143 return (ssl->verify_result);
3146 int SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
3147 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
3149 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
3150 new_func, dup_func, free_func);
3153 int SSL_set_ex_data(SSL *s, int idx, void *arg)
3155 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
3158 void *SSL_get_ex_data(const SSL *s, int idx)
3160 return (CRYPTO_get_ex_data(&s->ex_data, idx));
3163 int SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
3164 CRYPTO_EX_dup *dup_func,
3165 CRYPTO_EX_free *free_func)
3167 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
3168 new_func, dup_func, free_func);
3171 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
3173 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
3176 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
3178 return (CRYPTO_get_ex_data(&s->ex_data, idx));
3186 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
3188 return (ctx->cert_store);
3191 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
3193 if (ctx->cert_store != NULL)
3194 X509_STORE_free(ctx->cert_store);
3195 ctx->cert_store = store;
3198 int SSL_want(const SSL *s)
3200 return (s->rwstate);
3204 * \brief Set the callback for generating temporary RSA keys.
3205 * \param ctx the SSL context.
3206 * \param cb the callback
3209 #ifndef OPENSSL_NO_RSA
3210 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb) (SSL *ssl,
3214 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb);
3217 void SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb) (SSL *ssl,
3221 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb);
3227 * \brief The RSA temporary key callback function.
3228 * \param ssl the SSL session.
3229 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3230 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3231 * of the required key in bits.
3232 * \return the temporary RSA key.
3233 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3236 RSA *cb(SSL *ssl, int is_export, int keylength)
3242 * \brief Set the callback for generating temporary DH keys.
3243 * \param ctx the SSL context.
3244 * \param dh the callback
3247 #ifndef OPENSSL_NO_DH
3248 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
3249 DH *(*dh) (SSL *ssl, int is_export,
3252 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3255 void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export,
3258 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3262 #ifndef OPENSSL_NO_EC
3263 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,
3264 EC_KEY *(*ecdh) (SSL *ssl, int is_export,
3267 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB,
3268 (void (*)(void))ecdh);
3271 void SSL_set_tmp_ecdh_callback(SSL *ssl,
3272 EC_KEY *(*ecdh) (SSL *ssl, int is_export,
3275 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB, (void (*)(void))ecdh);
3279 #ifndef OPENSSL_NO_PSK
3280 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3282 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3283 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT,
3284 SSL_R_DATA_LENGTH_TOO_LONG);
3287 if (ctx->psk_identity_hint != NULL)
3288 OPENSSL_free(ctx->psk_identity_hint);
3289 if (identity_hint != NULL) {
3290 ctx->psk_identity_hint = BUF_strdup(identity_hint);
3291 if (ctx->psk_identity_hint == NULL)
3294 ctx->psk_identity_hint = NULL;
3298 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3303 if (s->session == NULL)
3304 return 1; /* session not created yet, ignored */
3306 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3307 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3310 if (s->session->psk_identity_hint != NULL)
3311 OPENSSL_free(s->session->psk_identity_hint);
3312 if (identity_hint != NULL) {
3313 s->session->psk_identity_hint = BUF_strdup(identity_hint);
3314 if (s->session->psk_identity_hint == NULL)
3317 s->session->psk_identity_hint = NULL;
3321 const char *SSL_get_psk_identity_hint(const SSL *s)
3323 if (s == NULL || s->session == NULL)
3325 return (s->session->psk_identity_hint);
3328 const char *SSL_get_psk_identity(const SSL *s)
3330 if (s == NULL || s->session == NULL)
3332 return (s->session->psk_identity);
3335 void SSL_set_psk_client_callback(SSL *s,
3336 unsigned int (*cb) (SSL *ssl,
3345 s->psk_client_callback = cb;
3348 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3349 unsigned int (*cb) (SSL *ssl,
3358 ctx->psk_client_callback = cb;
3361 void SSL_set_psk_server_callback(SSL *s,
3362 unsigned int (*cb) (SSL *ssl,
3363 const char *identity,
3368 s->psk_server_callback = cb;
3371 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3372 unsigned int (*cb) (SSL *ssl,
3373 const char *identity,
3378 ctx->psk_server_callback = cb;
3382 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
3383 void (*cb) (int write_p, int version,
3384 int content_type, const void *buf,
3385 size_t len, SSL *ssl, void *arg))
3387 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3390 void SSL_set_msg_callback(SSL *ssl,
3391 void (*cb) (int write_p, int version,
3392 int content_type, const void *buf,
3393 size_t len, SSL *ssl, void *arg))
3395 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3398 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
3399 int (*cb) (SSL *ssl,
3403 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3404 (void (*)(void))cb);
3407 void SSL_set_not_resumable_session_callback(SSL *ssl,
3408 int (*cb) (SSL *ssl,
3409 int is_forward_secure))
3411 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3412 (void (*)(void))cb);
3416 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3417 * vairable, freeing EVP_MD_CTX previously stored in that variable, if any.
3418 * If EVP_MD pointer is passed, initializes ctx with this md Returns newly
3422 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
3424 ssl_clear_hash_ctx(hash);
3425 *hash = EVP_MD_CTX_create();
3427 EVP_DigestInit_ex(*hash, md, NULL);
3431 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3435 EVP_MD_CTX_destroy(*hash);
3439 /* Retrieve handshake hashes */
3440 int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen)
3442 unsigned char *p = out;
3447 EVP_MD_CTX_init(&ctx);
3448 for (idx = 0; ssl_get_handshake_digest(idx, &mask, &md); idx++) {
3449 if (mask & ssl_get_algorithm2(s)) {
3450 int hashsize = EVP_MD_size(md);
3451 EVP_MD_CTX *hdgst = s->s3->handshake_dgst[idx];
3452 if (!hdgst || hashsize < 0 || hashsize > outlen)
3454 if (!EVP_MD_CTX_copy_ex(&ctx, hdgst))
3456 if (!EVP_DigestFinal_ex(&ctx, p, NULL))
3464 EVP_MD_CTX_cleanup(&ctx);
3468 void SSL_set_debug(SSL *s, int debug)
3473 int SSL_cache_hit(SSL *s)
3478 int SSL_is_server(SSL *s)
3483 void SSL_set_security_level(SSL *s, int level)
3485 s->cert->sec_level = level;
3488 int SSL_get_security_level(const SSL *s)
3490 return s->cert->sec_level;
3493 void SSL_set_security_callback(SSL *s,
3494 int (*cb) (SSL *s, SSL_CTX *ctx, int op,
3495 int bits, int nid, void *other,
3498 s->cert->sec_cb = cb;
3501 int (*SSL_get_security_callback(const SSL *s)) (SSL *s, SSL_CTX *ctx, int op,
3503 void *other, void *ex) {
3504 return s->cert->sec_cb;
3507 void SSL_set0_security_ex_data(SSL *s, void *ex)
3509 s->cert->sec_ex = ex;
3512 void *SSL_get0_security_ex_data(const SSL *s)
3514 return s->cert->sec_ex;
3517 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
3519 ctx->cert->sec_level = level;
3522 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
3524 return ctx->cert->sec_level;
3527 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
3528 int (*cb) (SSL *s, SSL_CTX *ctx, int op,
3529 int bits, int nid, void *other,
3532 ctx->cert->sec_cb = cb;
3535 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (SSL *s,
3541 return ctx->cert->sec_cb;
3544 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
3546 ctx->cert->sec_ex = ex;
3549 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
3551 return ctx->cert->sec_ex;
3554 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);