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 RECORD_LAYER_set_ssl(&s->rlayer, s);
285 #ifndef OPENSSL_NO_KRB5
286 s->kssl_ctx = kssl_ctx_new();
287 #endif /* OPENSSL_NO_KRB5 */
289 s->options = ctx->options;
291 s->max_cert_list = ctx->max_cert_list;
294 * Earlier library versions used to copy the pointer to the CERT, not
295 * its contents; only when setting new parameters for the per-SSL
296 * copy, ssl_cert_new would be called (and the direct reference to
297 * the per-SSL_CTX settings would be lost, but those still were
298 * indirectly accessed for various purposes, and for that reason they
299 * used to be known as s->ctx->default_cert). Now we don't look at the
300 * SSL_CTX's CERT after having duplicated it once.
302 s->cert = ssl_cert_dup(ctx->cert);
306 RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead);
307 s->msg_callback = ctx->msg_callback;
308 s->msg_callback_arg = ctx->msg_callback_arg;
309 s->verify_mode = ctx->verify_mode;
310 s->not_resumable_session_cb = ctx->not_resumable_session_cb;
311 s->sid_ctx_length = ctx->sid_ctx_length;
312 OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx);
313 memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx));
314 s->verify_callback = ctx->default_verify_callback;
315 s->generate_session_id = ctx->generate_session_id;
317 s->param = X509_VERIFY_PARAM_new();
320 X509_VERIFY_PARAM_inherit(s->param, ctx->param);
321 s->quiet_shutdown = ctx->quiet_shutdown;
322 s->max_send_fragment = ctx->max_send_fragment;
324 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
326 #ifndef OPENSSL_NO_TLSEXT
327 s->tlsext_debug_cb = 0;
328 s->tlsext_debug_arg = NULL;
329 s->tlsext_ticket_expected = 0;
330 s->tlsext_status_type = -1;
331 s->tlsext_status_expected = 0;
332 s->tlsext_ocsp_ids = NULL;
333 s->tlsext_ocsp_exts = NULL;
334 s->tlsext_ocsp_resp = NULL;
335 s->tlsext_ocsp_resplen = -1;
336 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
337 s->initial_ctx = ctx;
338 # ifndef OPENSSL_NO_EC
339 if (ctx->tlsext_ecpointformatlist) {
340 s->tlsext_ecpointformatlist =
341 BUF_memdup(ctx->tlsext_ecpointformatlist,
342 ctx->tlsext_ecpointformatlist_length);
343 if (!s->tlsext_ecpointformatlist)
345 s->tlsext_ecpointformatlist_length =
346 ctx->tlsext_ecpointformatlist_length;
348 if (ctx->tlsext_ellipticcurvelist) {
349 s->tlsext_ellipticcurvelist =
350 BUF_memdup(ctx->tlsext_ellipticcurvelist,
351 ctx->tlsext_ellipticcurvelist_length);
352 if (!s->tlsext_ellipticcurvelist)
354 s->tlsext_ellipticcurvelist_length =
355 ctx->tlsext_ellipticcurvelist_length;
358 # ifndef OPENSSL_NO_NEXTPROTONEG
359 s->next_proto_negotiated = NULL;
362 if (s->ctx->alpn_client_proto_list) {
363 s->alpn_client_proto_list =
364 OPENSSL_malloc(s->ctx->alpn_client_proto_list_len);
365 if (s->alpn_client_proto_list == NULL)
367 memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list,
368 s->ctx->alpn_client_proto_list_len);
369 s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len;
373 s->verify_result = X509_V_OK;
375 s->method = ctx->method;
377 if (!s->method->ssl_new(s))
381 s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1;
386 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
388 #ifndef OPENSSL_NO_PSK
389 s->psk_client_callback = ctx->psk_client_callback;
390 s->psk_server_callback = ctx->psk_server_callback;
397 SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE);
401 int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx,
402 unsigned int sid_ctx_len)
404 if (sid_ctx_len > sizeof ctx->sid_ctx) {
405 SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT,
406 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
409 ctx->sid_ctx_length = sid_ctx_len;
410 memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len);
415 int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx,
416 unsigned int sid_ctx_len)
418 if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) {
419 SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT,
420 SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG);
423 ssl->sid_ctx_length = sid_ctx_len;
424 memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len);
429 int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb)
431 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
432 ctx->generate_session_id = cb;
433 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
437 int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb)
439 CRYPTO_w_lock(CRYPTO_LOCK_SSL);
440 ssl->generate_session_id = cb;
441 CRYPTO_w_unlock(CRYPTO_LOCK_SSL);
445 int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id,
449 * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how
450 * we can "construct" a session to give us the desired check - ie. to
451 * find if there's a session in the hash table that would conflict with
452 * any new session built out of this id/id_len and the ssl_version in use
457 if (id_len > sizeof r.session_id)
460 r.ssl_version = ssl->version;
461 r.session_id_length = id_len;
462 memcpy(r.session_id, id, id_len);
464 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
465 p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r);
466 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
470 int SSL_CTX_set_purpose(SSL_CTX *s, int purpose)
472 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
475 int SSL_set_purpose(SSL *s, int purpose)
477 return X509_VERIFY_PARAM_set_purpose(s->param, purpose);
480 int SSL_CTX_set_trust(SSL_CTX *s, int trust)
482 return X509_VERIFY_PARAM_set_trust(s->param, trust);
485 int SSL_set_trust(SSL *s, int trust)
487 return X509_VERIFY_PARAM_set_trust(s->param, trust);
490 int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm)
492 return X509_VERIFY_PARAM_set1(ctx->param, vpm);
495 int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm)
497 return X509_VERIFY_PARAM_set1(ssl->param, vpm);
500 X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx)
505 X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl)
510 void SSL_certs_clear(SSL *s)
512 ssl_cert_clear_certs(s->cert);
515 void SSL_free(SSL *s)
522 i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL);
530 fprintf(stderr, "SSL_free, bad reference count\n");
536 X509_VERIFY_PARAM_free(s->param);
538 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data);
540 if (s->bbio != NULL) {
541 /* If the buffering BIO is in place, pop it off */
542 if (s->bbio == s->wbio) {
543 s->wbio = BIO_pop(s->wbio);
548 BIO_free_all(s->rbio);
549 if (s->wbio != s->rbio)
550 BIO_free_all(s->wbio);
552 if (s->init_buf != NULL)
553 BUF_MEM_free(s->init_buf);
555 /* add extra stuff */
556 if (s->cipher_list != NULL)
557 sk_SSL_CIPHER_free(s->cipher_list);
558 if (s->cipher_list_by_id != NULL)
559 sk_SSL_CIPHER_free(s->cipher_list_by_id);
561 /* Make the next call work :-) */
562 if (s->session != NULL) {
563 ssl_clear_bad_session(s);
564 SSL_SESSION_free(s->session);
567 ssl_clear_cipher_ctx(s);
568 ssl_clear_hash_ctx(&s->read_hash);
569 ssl_clear_hash_ctx(&s->write_hash);
572 ssl_cert_free(s->cert);
573 /* Free up if allocated */
575 #ifndef OPENSSL_NO_TLSEXT
576 if (s->tlsext_hostname)
577 OPENSSL_free(s->tlsext_hostname);
579 SSL_CTX_free(s->initial_ctx);
580 # ifndef OPENSSL_NO_EC
581 if (s->tlsext_ecpointformatlist)
582 OPENSSL_free(s->tlsext_ecpointformatlist);
583 if (s->tlsext_ellipticcurvelist)
584 OPENSSL_free(s->tlsext_ellipticcurvelist);
585 # endif /* OPENSSL_NO_EC */
586 if (s->tlsext_ocsp_exts)
587 sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free);
588 if (s->tlsext_ocsp_ids)
589 sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free);
590 if (s->tlsext_ocsp_resp)
591 OPENSSL_free(s->tlsext_ocsp_resp);
592 if (s->alpn_client_proto_list)
593 OPENSSL_free(s->alpn_client_proto_list);
596 if (s->client_CA != NULL)
597 sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free);
599 if (s->method != NULL)
600 s->method->ssl_free(s);
603 SSL_CTX_free(s->ctx);
605 #ifndef OPENSSL_NO_KRB5
606 if (s->kssl_ctx != NULL)
607 kssl_ctx_free(s->kssl_ctx);
608 #endif /* OPENSSL_NO_KRB5 */
610 #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
611 if (s->next_proto_negotiated)
612 OPENSSL_free(s->next_proto_negotiated);
615 #ifndef OPENSSL_NO_SRTP
616 if (s->srtp_profiles)
617 sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles);
623 void SSL_set_rbio(SSL *s, BIO *rbio)
626 BIO_free_all(s->rbio);
630 void SSL_set_wbio(SSL *s, BIO *wbio)
633 * If the output buffering BIO is still in place, remove it
635 if (s->bbio != NULL) {
636 if (s->wbio == s->bbio) {
637 s->wbio = s->wbio->next_bio;
638 s->bbio->next_bio = NULL;
641 if (s->wbio != wbio && s->rbio != s->wbio)
642 BIO_free_all(s->wbio);
646 void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio)
648 SSL_set_wbio(s, wbio);
649 SSL_set_rbio(s, rbio);
652 BIO *SSL_get_rbio(const SSL *s)
657 BIO *SSL_get_wbio(const SSL *s)
662 int SSL_get_fd(const SSL *s)
664 return (SSL_get_rfd(s));
667 int SSL_get_rfd(const SSL *s)
673 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
679 int SSL_get_wfd(const SSL *s)
685 r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR);
691 #ifndef OPENSSL_NO_SOCK
692 int SSL_set_fd(SSL *s, int fd)
697 bio = BIO_new(BIO_s_socket());
700 SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB);
703 BIO_set_fd(bio, fd, BIO_NOCLOSE);
704 SSL_set_bio(s, bio, bio);
710 int SSL_set_wfd(SSL *s, int fd)
715 if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET)
716 || ((int)BIO_get_fd(s->rbio, NULL) != fd)) {
717 bio = BIO_new(BIO_s_socket());
720 SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB);
723 BIO_set_fd(bio, fd, BIO_NOCLOSE);
724 SSL_set_bio(s, SSL_get_rbio(s), bio);
726 SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s));
732 int SSL_set_rfd(SSL *s, int fd)
737 if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET)
738 || ((int)BIO_get_fd(s->wbio, NULL) != fd)) {
739 bio = BIO_new(BIO_s_socket());
742 SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB);
745 BIO_set_fd(bio, fd, BIO_NOCLOSE);
746 SSL_set_bio(s, bio, SSL_get_wbio(s));
748 SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s));
755 /* return length of latest Finished message we sent, copy to 'buf' */
756 size_t SSL_get_finished(const SSL *s, void *buf, size_t count)
761 ret = s->s3->tmp.finish_md_len;
764 memcpy(buf, s->s3->tmp.finish_md, count);
769 /* return length of latest Finished message we expected, copy to 'buf' */
770 size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count)
775 ret = s->s3->tmp.peer_finish_md_len;
778 memcpy(buf, s->s3->tmp.peer_finish_md, count);
783 int SSL_get_verify_mode(const SSL *s)
785 return (s->verify_mode);
788 int SSL_get_verify_depth(const SSL *s)
790 return X509_VERIFY_PARAM_get_depth(s->param);
793 int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) {
794 return (s->verify_callback);
797 int SSL_CTX_get_verify_mode(const SSL_CTX *ctx)
799 return (ctx->verify_mode);
802 int SSL_CTX_get_verify_depth(const SSL_CTX *ctx)
804 return X509_VERIFY_PARAM_get_depth(ctx->param);
807 int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) {
808 return (ctx->default_verify_callback);
811 void SSL_set_verify(SSL *s, int mode,
812 int (*callback) (int ok, X509_STORE_CTX *ctx))
814 s->verify_mode = mode;
815 if (callback != NULL)
816 s->verify_callback = callback;
819 void SSL_set_verify_depth(SSL *s, int depth)
821 X509_VERIFY_PARAM_set_depth(s->param, depth);
824 void SSL_set_read_ahead(SSL *s, int yes)
826 RECORD_LAYER_set_read_ahead(&s->rlayer, yes);
829 int SSL_get_read_ahead(const SSL *s)
831 return RECORD_LAYER_get_read_ahead(&s->rlayer);
834 int SSL_pending(const SSL *s)
837 * SSL_pending cannot work properly if read-ahead is enabled
838 * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is
839 * impossible to fix since SSL_pending cannot report errors that may be
840 * observed while scanning the new data. (Note that SSL_pending() is
841 * often used as a boolean value, so we'd better not return -1.)
843 return (s->method->ssl_pending(s));
846 X509 *SSL_get_peer_certificate(const SSL *s)
850 if ((s == NULL) || (s->session == NULL))
853 r = s->session->peer;
858 CRYPTO_add(&r->references, 1, CRYPTO_LOCK_X509);
863 STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
867 if ((s == NULL) || (s->session == NULL)
868 || (s->session->sess_cert == NULL))
871 r = s->session->sess_cert->cert_chain;
874 * If we are a client, cert_chain includes the peer's own certificate; if
875 * we are a server, it does not.
882 * Now in theory, since the calling process own 't' it should be safe to
883 * modify. We need to be able to read f without being hassled
885 int SSL_copy_session_id(SSL *t, const SSL *f)
887 /* Do we need to to SSL locking? */
888 if(!SSL_set_session(t, SSL_get_session(f))) {
893 * what if we are setup as SSLv2 but want to talk SSLv3 or vice-versa
895 if (t->method != f->method) {
896 t->method->ssl_free(t); /* cleanup current */
897 t->method = f->method; /* change method */
898 t->method->ssl_new(t); /* setup new */
901 CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT);
902 ssl_cert_free(t->cert);
904 if(!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) {
911 /* Fix this so it checks all the valid key/cert options */
912 int SSL_CTX_check_private_key(const SSL_CTX *ctx)
915 (ctx->cert->key->x509 == NULL)) {
916 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
917 SSL_R_NO_CERTIFICATE_ASSIGNED);
920 if (ctx->cert->key->privatekey == NULL) {
921 SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
922 SSL_R_NO_PRIVATE_KEY_ASSIGNED);
925 return (X509_check_private_key
926 (ctx->cert->key->x509, ctx->cert->key->privatekey));
929 /* Fix this function so that it takes an optional type parameter */
930 int SSL_check_private_key(const SSL *ssl)
933 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
936 if (ssl->cert->key->x509 == NULL) {
937 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
940 if (ssl->cert->key->privatekey == NULL) {
941 SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED);
944 return (X509_check_private_key(ssl->cert->key->x509,
945 ssl->cert->key->privatekey));
948 int SSL_accept(SSL *s)
950 if (s->handshake_func == 0)
951 /* Not properly initialized yet */
952 SSL_set_accept_state(s);
954 return (s->method->ssl_accept(s));
957 int SSL_connect(SSL *s)
959 if (s->handshake_func == 0)
960 /* Not properly initialized yet */
961 SSL_set_connect_state(s);
963 return (s->method->ssl_connect(s));
966 long SSL_get_default_timeout(const SSL *s)
968 return (s->method->get_timeout());
971 int SSL_read(SSL *s, void *buf, int num)
973 if (s->handshake_func == 0) {
974 SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED);
978 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
979 s->rwstate = SSL_NOTHING;
982 return (s->method->ssl_read(s, buf, num));
985 int SSL_peek(SSL *s, void *buf, int num)
987 if (s->handshake_func == 0) {
988 SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED);
992 if (s->shutdown & SSL_RECEIVED_SHUTDOWN) {
995 return (s->method->ssl_peek(s, buf, num));
998 int SSL_write(SSL *s, const void *buf, int num)
1000 if (s->handshake_func == 0) {
1001 SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED);
1005 if (s->shutdown & SSL_SENT_SHUTDOWN) {
1006 s->rwstate = SSL_NOTHING;
1007 SSLerr(SSL_F_SSL_WRITE, SSL_R_PROTOCOL_IS_SHUTDOWN);
1010 return (s->method->ssl_write(s, buf, num));
1013 int SSL_shutdown(SSL *s)
1016 * Note that this function behaves differently from what one might
1017 * expect. Return values are 0 for no success (yet), 1 for success; but
1018 * calling it once is usually not enough, even if blocking I/O is used
1019 * (see ssl3_shutdown).
1022 if (s->handshake_func == 0) {
1023 SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED);
1027 if ((s != NULL) && !SSL_in_init(s))
1028 return (s->method->ssl_shutdown(s));
1033 int SSL_renegotiate(SSL *s)
1035 if (s->renegotiate == 0)
1040 return (s->method->ssl_renegotiate(s));
1043 int SSL_renegotiate_abbreviated(SSL *s)
1045 if (s->renegotiate == 0)
1050 return (s->method->ssl_renegotiate(s));
1053 int SSL_renegotiate_pending(SSL *s)
1056 * becomes true when negotiation is requested; false again once a
1057 * handshake has finished
1059 return (s->renegotiate != 0);
1062 long SSL_ctrl(SSL *s, int cmd, long larg, void *parg)
1067 case SSL_CTRL_GET_READ_AHEAD:
1068 return (RECORD_LAYER_get_read_ahead(&s->rlayer));
1069 case SSL_CTRL_SET_READ_AHEAD:
1070 l = RECORD_LAYER_get_read_ahead(&s->rlayer);
1071 RECORD_LAYER_set_read_ahead(&s->rlayer, larg);
1074 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1075 s->msg_callback_arg = parg;
1078 case SSL_CTRL_OPTIONS:
1079 return (s->options |= larg);
1080 case SSL_CTRL_CLEAR_OPTIONS:
1081 return (s->options &= ~larg);
1083 return (s->mode |= larg);
1084 case SSL_CTRL_CLEAR_MODE:
1085 return (s->mode &= ~larg);
1086 case SSL_CTRL_GET_MAX_CERT_LIST:
1087 return (s->max_cert_list);
1088 case SSL_CTRL_SET_MAX_CERT_LIST:
1089 l = s->max_cert_list;
1090 s->max_cert_list = larg;
1092 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1093 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1095 s->max_send_fragment = larg;
1097 case SSL_CTRL_GET_RI_SUPPORT:
1099 return s->s3->send_connection_binding;
1102 case SSL_CTRL_CERT_FLAGS:
1103 return (s->cert->cert_flags |= larg);
1104 case SSL_CTRL_CLEAR_CERT_FLAGS:
1105 return (s->cert->cert_flags &= ~larg);
1107 case SSL_CTRL_GET_RAW_CIPHERLIST:
1109 if (s->cert->ciphers_raw == NULL)
1111 *(unsigned char **)parg = s->cert->ciphers_raw;
1112 return (int)s->cert->ciphers_rawlen;
1114 return ssl_put_cipher_by_char(s, NULL, NULL);
1115 case SSL_CTRL_GET_EXTMS_SUPPORT:
1116 if (!s->session || SSL_in_init(s) || s->in_handshake)
1118 if (s->session->flags & SSL_SESS_FLAG_EXTMS)
1123 return (s->method->ssl_ctrl(s, cmd, larg, parg));
1127 long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void))
1130 case SSL_CTRL_SET_MSG_CALLBACK:
1131 s->msg_callback = (void (*)
1132 (int write_p, int version, int content_type,
1133 const void *buf, size_t len, SSL *ssl,
1138 return (s->method->ssl_callback_ctrl(s, cmd, fp));
1142 LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx)
1144 return ctx->sessions;
1147 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg)
1150 /* For some cases with ctx == NULL perform syntax checks */
1153 #ifndef OPENSSL_NO_EC
1154 case SSL_CTRL_SET_CURVES_LIST:
1155 return tls1_set_curves_list(NULL, NULL, parg);
1157 case SSL_CTRL_SET_SIGALGS_LIST:
1158 case SSL_CTRL_SET_CLIENT_SIGALGS_LIST:
1159 return tls1_set_sigalgs_list(NULL, parg, 0);
1166 case SSL_CTRL_GET_READ_AHEAD:
1167 return (ctx->read_ahead);
1168 case SSL_CTRL_SET_READ_AHEAD:
1169 l = ctx->read_ahead;
1170 ctx->read_ahead = larg;
1173 case SSL_CTRL_SET_MSG_CALLBACK_ARG:
1174 ctx->msg_callback_arg = parg;
1177 case SSL_CTRL_GET_MAX_CERT_LIST:
1178 return (ctx->max_cert_list);
1179 case SSL_CTRL_SET_MAX_CERT_LIST:
1180 l = ctx->max_cert_list;
1181 ctx->max_cert_list = larg;
1184 case SSL_CTRL_SET_SESS_CACHE_SIZE:
1185 l = ctx->session_cache_size;
1186 ctx->session_cache_size = larg;
1188 case SSL_CTRL_GET_SESS_CACHE_SIZE:
1189 return (ctx->session_cache_size);
1190 case SSL_CTRL_SET_SESS_CACHE_MODE:
1191 l = ctx->session_cache_mode;
1192 ctx->session_cache_mode = larg;
1194 case SSL_CTRL_GET_SESS_CACHE_MODE:
1195 return (ctx->session_cache_mode);
1197 case SSL_CTRL_SESS_NUMBER:
1198 return (lh_SSL_SESSION_num_items(ctx->sessions));
1199 case SSL_CTRL_SESS_CONNECT:
1200 return (ctx->stats.sess_connect);
1201 case SSL_CTRL_SESS_CONNECT_GOOD:
1202 return (ctx->stats.sess_connect_good);
1203 case SSL_CTRL_SESS_CONNECT_RENEGOTIATE:
1204 return (ctx->stats.sess_connect_renegotiate);
1205 case SSL_CTRL_SESS_ACCEPT:
1206 return (ctx->stats.sess_accept);
1207 case SSL_CTRL_SESS_ACCEPT_GOOD:
1208 return (ctx->stats.sess_accept_good);
1209 case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE:
1210 return (ctx->stats.sess_accept_renegotiate);
1211 case SSL_CTRL_SESS_HIT:
1212 return (ctx->stats.sess_hit);
1213 case SSL_CTRL_SESS_CB_HIT:
1214 return (ctx->stats.sess_cb_hit);
1215 case SSL_CTRL_SESS_MISSES:
1216 return (ctx->stats.sess_miss);
1217 case SSL_CTRL_SESS_TIMEOUTS:
1218 return (ctx->stats.sess_timeout);
1219 case SSL_CTRL_SESS_CACHE_FULL:
1220 return (ctx->stats.sess_cache_full);
1221 case SSL_CTRL_OPTIONS:
1222 return (ctx->options |= larg);
1223 case SSL_CTRL_CLEAR_OPTIONS:
1224 return (ctx->options &= ~larg);
1226 return (ctx->mode |= larg);
1227 case SSL_CTRL_CLEAR_MODE:
1228 return (ctx->mode &= ~larg);
1229 case SSL_CTRL_SET_MAX_SEND_FRAGMENT:
1230 if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH)
1232 ctx->max_send_fragment = larg;
1234 case SSL_CTRL_CERT_FLAGS:
1235 return (ctx->cert->cert_flags |= larg);
1236 case SSL_CTRL_CLEAR_CERT_FLAGS:
1237 return (ctx->cert->cert_flags &= ~larg);
1239 return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg));
1243 long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void))
1246 case SSL_CTRL_SET_MSG_CALLBACK:
1247 ctx->msg_callback = (void (*)
1248 (int write_p, int version, int content_type,
1249 const void *buf, size_t len, SSL *ssl,
1254 return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp));
1258 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b)
1266 return ((l > 0) ? 1 : -1);
1269 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
1270 const SSL_CIPHER *const *bp)
1274 l = (*ap)->id - (*bp)->id;
1278 return ((l > 0) ? 1 : -1);
1281 /** return a STACK of the ciphers available for the SSL and in order of
1283 STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s)
1286 if (s->cipher_list != NULL) {
1287 return (s->cipher_list);
1288 } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) {
1289 return (s->ctx->cipher_list);
1295 STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s)
1297 STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers;
1299 ciphers = SSL_get_ciphers(s);
1302 ssl_set_client_disabled(s);
1303 for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
1304 const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i);
1305 if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED)) {
1307 sk = sk_SSL_CIPHER_new_null();
1310 if (!sk_SSL_CIPHER_push(sk, c)) {
1311 sk_SSL_CIPHER_free(sk);
1319 /** return a STACK of the ciphers available for the SSL and in order of
1321 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s)
1324 if (s->cipher_list_by_id != NULL) {
1325 return (s->cipher_list_by_id);
1326 } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) {
1327 return (s->ctx->cipher_list_by_id);
1333 /** The old interface to get the same thing as SSL_get_ciphers() */
1334 const char *SSL_get_cipher_list(const SSL *s, int n)
1337 STACK_OF(SSL_CIPHER) *sk;
1341 sk = SSL_get_ciphers(s);
1342 if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n))
1344 c = sk_SSL_CIPHER_value(sk, n);
1350 /** specify the ciphers to be used by default by the SSL_CTX */
1351 int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str)
1353 STACK_OF(SSL_CIPHER) *sk;
1355 sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list,
1356 &ctx->cipher_list_by_id, str, ctx->cert);
1358 * ssl_create_cipher_list may return an empty stack if it was unable to
1359 * find a cipher matching the given rule string (for example if the rule
1360 * string specifies a cipher which has been disabled). This is not an
1361 * error as far as ssl_create_cipher_list is concerned, and hence
1362 * ctx->cipher_list and ctx->cipher_list_by_id has been updated.
1366 else if (sk_SSL_CIPHER_num(sk) == 0) {
1367 SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1373 /** specify the ciphers to be used by the SSL */
1374 int SSL_set_cipher_list(SSL *s, const char *str)
1376 STACK_OF(SSL_CIPHER) *sk;
1378 sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list,
1379 &s->cipher_list_by_id, str, s->cert);
1380 /* see comment in SSL_CTX_set_cipher_list */
1383 else if (sk_SSL_CIPHER_num(sk) == 0) {
1384 SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH);
1390 /* works well for SSLv2, not so good for SSLv3 */
1391 char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len)
1394 STACK_OF(SSL_CIPHER) *sk;
1398 if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2))
1402 sk = s->session->ciphers;
1404 if (sk_SSL_CIPHER_num(sk) == 0)
1407 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
1410 c = sk_SSL_CIPHER_value(sk, i);
1411 n = strlen(c->name);
1427 int ssl_cipher_list_to_bytes(SSL *s, STACK_OF(SSL_CIPHER) *sk,
1429 int (*put_cb) (const SSL_CIPHER *,
1435 int empty_reneg_info_scsv = !s->renegotiate;
1436 /* Set disabled masks for this session */
1437 ssl_set_client_disabled(s);
1443 put_cb = s->method->put_cipher_by_char;
1445 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) {
1446 c = sk_SSL_CIPHER_value(sk, i);
1447 /* Skip disabled ciphers */
1448 if (ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED))
1450 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
1451 if (c->id == SSL3_CK_SCSV) {
1452 if (!empty_reneg_info_scsv)
1455 empty_reneg_info_scsv = 0;
1462 * If p == q, no ciphers; caller indicates an error. Otherwise, add
1466 if (empty_reneg_info_scsv) {
1467 static SSL_CIPHER scsv = {
1468 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
1470 j = put_cb(&scsv, p);
1472 #ifdef OPENSSL_RI_DEBUG
1474 "TLS_EMPTY_RENEGOTIATION_INFO_SCSV sent by client\n");
1477 if (s->mode & SSL_MODE_SEND_FALLBACK_SCSV) {
1478 static SSL_CIPHER scsv = {
1479 0, NULL, SSL3_CK_FALLBACK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
1481 j = put_cb(&scsv, p);
1489 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s, unsigned char *p,
1491 STACK_OF(SSL_CIPHER) **skp)
1493 const SSL_CIPHER *c;
1494 STACK_OF(SSL_CIPHER) *sk;
1498 s->s3->send_connection_binding = 0;
1500 n = ssl_put_cipher_by_char(s, NULL, NULL);
1501 if (n == 0 || (num % n) != 0) {
1502 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,
1503 SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST);
1506 if ((skp == NULL) || (*skp == NULL))
1507 sk = sk_SSL_CIPHER_new_null(); /* change perhaps later */
1510 sk_SSL_CIPHER_zero(sk);
1513 if (s->cert->ciphers_raw)
1514 OPENSSL_free(s->cert->ciphers_raw);
1515 s->cert->ciphers_raw = BUF_memdup(p, num);
1516 if (s->cert->ciphers_raw == NULL) {
1517 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
1520 s->cert->ciphers_rawlen = (size_t)num;
1522 for (i = 0; i < num; i += n) {
1523 /* Check for TLS_EMPTY_RENEGOTIATION_INFO_SCSV */
1524 if (s->s3 && (n != 3 || !p[0]) &&
1525 (p[n - 2] == ((SSL3_CK_SCSV >> 8) & 0xff)) &&
1526 (p[n - 1] == (SSL3_CK_SCSV & 0xff))) {
1527 /* SCSV fatal if renegotiating */
1528 if (s->renegotiate) {
1529 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,
1530 SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);
1531 ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE);
1534 s->s3->send_connection_binding = 1;
1536 #ifdef OPENSSL_RI_DEBUG
1537 fprintf(stderr, "SCSV received by server\n");
1542 /* Check for TLS_FALLBACK_SCSV */
1543 if ((n != 3 || !p[0]) &&
1544 (p[n - 2] == ((SSL3_CK_FALLBACK_SCSV >> 8) & 0xff)) &&
1545 (p[n - 1] == (SSL3_CK_FALLBACK_SCSV & 0xff))) {
1547 * The SCSV indicates that the client previously tried a higher
1548 * version. Fail if the current version is an unexpected
1551 if (!SSL_ctrl(s, SSL_CTRL_CHECK_PROTO_VERSION, 0, NULL)) {
1552 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST,
1553 SSL_R_INAPPROPRIATE_FALLBACK);
1555 ssl3_send_alert(s, SSL3_AL_FATAL,
1556 SSL_AD_INAPPROPRIATE_FALLBACK);
1563 c = ssl_get_cipher_by_char(s, p);
1566 if (!sk_SSL_CIPHER_push(sk, c)) {
1567 SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE);
1577 if ((skp == NULL) || (*skp == NULL))
1578 sk_SSL_CIPHER_free(sk);
1582 #ifndef OPENSSL_NO_TLSEXT
1583 /** return a servername extension value if provided in Client Hello, or NULL.
1584 * So far, only host_name types are defined (RFC 3546).
1587 const char *SSL_get_servername(const SSL *s, const int type)
1589 if (type != TLSEXT_NAMETYPE_host_name)
1592 return s->session && !s->tlsext_hostname ?
1593 s->session->tlsext_hostname : s->tlsext_hostname;
1596 int SSL_get_servername_type(const SSL *s)
1599 && (!s->tlsext_hostname ? s->session->
1600 tlsext_hostname : s->tlsext_hostname))
1601 return TLSEXT_NAMETYPE_host_name;
1606 * SSL_select_next_proto implements the standard protocol selection. It is
1607 * expected that this function is called from the callback set by
1608 * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a
1609 * vector of 8-bit, length prefixed byte strings. The length byte itself is
1610 * not included in the length. A byte string of length 0 is invalid. No byte
1611 * string may be truncated. The current, but experimental algorithm for
1612 * selecting the protocol is: 1) If the server doesn't support NPN then this
1613 * is indicated to the callback. In this case, the client application has to
1614 * abort the connection or have a default application level protocol. 2) If
1615 * the server supports NPN, but advertises an empty list then the client
1616 * selects the first protcol in its list, but indicates via the API that this
1617 * fallback case was enacted. 3) Otherwise, the client finds the first
1618 * protocol in the server's list that it supports and selects this protocol.
1619 * This is because it's assumed that the server has better information about
1620 * which protocol a client should use. 4) If the client doesn't support any
1621 * of the server's advertised protocols, then this is treated the same as
1622 * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was
1623 * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached.
1625 int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
1626 const unsigned char *server,
1627 unsigned int server_len,
1628 const unsigned char *client,
1629 unsigned int client_len)
1632 const unsigned char *result;
1633 int status = OPENSSL_NPN_UNSUPPORTED;
1636 * For each protocol in server preference order, see if we support it.
1638 for (i = 0; i < server_len;) {
1639 for (j = 0; j < client_len;) {
1640 if (server[i] == client[j] &&
1641 memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) {
1642 /* We found a match */
1643 result = &server[i];
1644 status = OPENSSL_NPN_NEGOTIATED;
1654 /* There's no overlap between our protocols and the server's list. */
1656 status = OPENSSL_NPN_NO_OVERLAP;
1659 *out = (unsigned char *)result + 1;
1660 *outlen = result[0];
1664 # ifndef OPENSSL_NO_NEXTPROTONEG
1666 * SSL_get0_next_proto_negotiated sets *data and *len to point to the
1667 * client's requested protocol for this connection and returns 0. If the
1668 * client didn't request any protocol, then *data is set to NULL. Note that
1669 * the client can request any protocol it chooses. The value returned from
1670 * this function need not be a member of the list of supported protocols
1671 * provided by the callback.
1673 void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data,
1676 *data = s->next_proto_negotiated;
1680 *len = s->next_proto_negotiated_len;
1685 * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when
1686 * a TLS server needs a list of supported protocols for Next Protocol
1687 * Negotiation. The returned list must be in wire format. The list is
1688 * returned by setting |out| to point to it and |outlen| to its length. This
1689 * memory will not be modified, but one should assume that the SSL* keeps a
1690 * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it
1691 * wishes to advertise. Otherwise, no such extension will be included in the
1694 void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx,
1695 int (*cb) (SSL *ssl,
1698 unsigned int *outlen,
1699 void *arg), void *arg)
1701 ctx->next_protos_advertised_cb = cb;
1702 ctx->next_protos_advertised_cb_arg = arg;
1706 * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a
1707 * client needs to select a protocol from the server's provided list. |out|
1708 * must be set to point to the selected protocol (which may be within |in|).
1709 * The length of the protocol name must be written into |outlen|. The
1710 * server's advertised protocols are provided in |in| and |inlen|. The
1711 * callback can assume that |in| is syntactically valid. The client must
1712 * select a protocol. It is fatal to the connection if this callback returns
1713 * a value other than SSL_TLSEXT_ERR_OK.
1715 void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx,
1716 int (*cb) (SSL *s, unsigned char **out,
1717 unsigned char *outlen,
1718 const unsigned char *in,
1720 void *arg), void *arg)
1722 ctx->next_proto_select_cb = cb;
1723 ctx->next_proto_select_cb_arg = arg;
1728 * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|.
1729 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1730 * length-prefixed strings). Returns 0 on success.
1732 int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
1733 unsigned protos_len)
1735 if (ctx->alpn_client_proto_list)
1736 OPENSSL_free(ctx->alpn_client_proto_list);
1738 ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1739 if (!ctx->alpn_client_proto_list)
1741 memcpy(ctx->alpn_client_proto_list, protos, protos_len);
1742 ctx->alpn_client_proto_list_len = protos_len;
1748 * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|.
1749 * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit
1750 * length-prefixed strings). Returns 0 on success.
1752 int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
1753 unsigned protos_len)
1755 if (ssl->alpn_client_proto_list)
1756 OPENSSL_free(ssl->alpn_client_proto_list);
1758 ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len);
1759 if (!ssl->alpn_client_proto_list)
1761 memcpy(ssl->alpn_client_proto_list, protos, protos_len);
1762 ssl->alpn_client_proto_list_len = protos_len;
1768 * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is
1769 * called during ClientHello processing in order to select an ALPN protocol
1770 * from the client's list of offered protocols.
1772 void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
1773 int (*cb) (SSL *ssl,
1774 const unsigned char **out,
1775 unsigned char *outlen,
1776 const unsigned char *in,
1778 void *arg), void *arg)
1780 ctx->alpn_select_cb = cb;
1781 ctx->alpn_select_cb_arg = arg;
1785 * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from
1786 * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name
1787 * (not including the leading length-prefix byte). If the server didn't
1788 * respond with a negotiated protocol then |*len| will be zero.
1790 void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
1795 *data = ssl->s3->alpn_selected;
1799 *len = ssl->s3->alpn_selected_len;
1802 #endif /* !OPENSSL_NO_TLSEXT */
1804 int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1805 const char *label, size_t llen,
1806 const unsigned char *p, size_t plen,
1809 if (s->version < TLS1_VERSION)
1812 return s->method->ssl3_enc->export_keying_material(s, out, olen, label,
1817 static unsigned long ssl_session_hash(const SSL_SESSION *a)
1822 ((unsigned int)a->session_id[0]) |
1823 ((unsigned int)a->session_id[1] << 8L) |
1824 ((unsigned long)a->session_id[2] << 16L) |
1825 ((unsigned long)a->session_id[3] << 24L);
1830 * NB: If this function (or indeed the hash function which uses a sort of
1831 * coarser function than this one) is changed, ensure
1832 * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on
1833 * being able to construct an SSL_SESSION that will collide with any existing
1834 * session with a matching session ID.
1836 static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b)
1838 if (a->ssl_version != b->ssl_version)
1840 if (a->session_id_length != b->session_id_length)
1842 return (memcmp(a->session_id, b->session_id, a->session_id_length));
1846 * These wrapper functions should remain rather than redeclaring
1847 * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each
1848 * variable. The reason is that the functions aren't static, they're exposed
1851 static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION)
1852 static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION)
1854 SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth)
1856 SSL_CTX *ret = NULL;
1859 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED);
1863 if (FIPS_mode() && (meth->version < TLS1_VERSION)) {
1864 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE);
1868 if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) {
1869 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS);
1872 ret = (SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX));
1876 memset(ret, 0, sizeof(SSL_CTX));
1880 ret->cert_store = NULL;
1881 ret->session_cache_mode = SSL_SESS_CACHE_SERVER;
1882 ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT;
1883 ret->session_cache_head = NULL;
1884 ret->session_cache_tail = NULL;
1886 /* We take the system default */
1887 ret->session_timeout = meth->get_timeout();
1889 ret->new_session_cb = 0;
1890 ret->remove_session_cb = 0;
1891 ret->get_session_cb = 0;
1892 ret->generate_session_id = 0;
1894 memset((char *)&ret->stats, 0, sizeof(ret->stats));
1896 ret->references = 1;
1897 ret->quiet_shutdown = 0;
1898 ret->info_callback = NULL;
1899 ret->app_verify_callback = 0;
1900 ret->app_verify_arg = NULL;
1901 ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT;
1902 ret->read_ahead = 0;
1903 ret->msg_callback = 0;
1904 ret->msg_callback_arg = NULL;
1905 ret->verify_mode = SSL_VERIFY_NONE;
1906 ret->sid_ctx_length = 0;
1907 ret->default_verify_callback = NULL;
1908 if ((ret->cert = ssl_cert_new()) == NULL)
1911 ret->default_passwd_callback = 0;
1912 ret->default_passwd_callback_userdata = NULL;
1913 ret->client_cert_cb = 0;
1914 ret->app_gen_cookie_cb = 0;
1915 ret->app_verify_cookie_cb = 0;
1917 ret->sessions = lh_SSL_SESSION_new();
1918 if (ret->sessions == NULL)
1920 ret->cert_store = X509_STORE_new();
1921 if (ret->cert_store == NULL)
1924 if(!ssl_create_cipher_list(ret->method,
1925 &ret->cipher_list, &ret->cipher_list_by_id,
1926 SSL_DEFAULT_CIPHER_LIST, ret->cert)
1927 || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) {
1928 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS);
1932 ret->param = X509_VERIFY_PARAM_new();
1936 if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) {
1937 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES);
1940 if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) {
1941 SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES);
1945 if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL)
1948 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data);
1950 ret->extra_certs = NULL;
1951 /* No compression for DTLS */
1952 if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS))
1953 ret->comp_methods = SSL_COMP_get_compression_methods();
1955 ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH;
1957 #ifndef OPENSSL_NO_TLSEXT
1958 ret->tlsext_servername_callback = 0;
1959 ret->tlsext_servername_arg = NULL;
1960 /* Setup RFC4507 ticket keys */
1961 if ((RAND_bytes(ret->tlsext_tick_key_name, 16) <= 0)
1962 || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0)
1963 || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0))
1964 ret->options |= SSL_OP_NO_TICKET;
1966 ret->tlsext_status_cb = 0;
1967 ret->tlsext_status_arg = NULL;
1969 # ifndef OPENSSL_NO_NEXTPROTONEG
1970 ret->next_protos_advertised_cb = 0;
1971 ret->next_proto_select_cb = 0;
1974 #ifndef OPENSSL_NO_PSK
1975 ret->psk_identity_hint = NULL;
1976 ret->psk_client_callback = NULL;
1977 ret->psk_server_callback = NULL;
1979 #ifndef OPENSSL_NO_SRP
1980 if(!SSL_CTX_SRP_CTX_init(ret))
1983 #ifndef OPENSSL_NO_ENGINE
1984 ret->client_cert_engine = NULL;
1985 # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO
1986 # define eng_strx(x) #x
1987 # define eng_str(x) eng_strx(x)
1988 /* Use specific client engine automatically... ignore errors */
1991 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1994 ENGINE_load_builtin_engines();
1995 eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO));
1997 if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng))
2003 * Default is to connect to non-RI servers. When RI is more widely
2004 * deployed might change this.
2006 ret->options |= SSL_OP_LEGACY_SERVER_CONNECT;
2010 SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE);
2017 void SSL_CTX_free(SSL_CTX *a)
2024 i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_SSL_CTX);
2026 REF_PRINT("SSL_CTX", a);
2032 fprintf(stderr, "SSL_CTX_free, bad reference count\n");
2038 X509_VERIFY_PARAM_free(a->param);
2041 * Free internal session cache. However: the remove_cb() may reference
2042 * the ex_data of SSL_CTX, thus the ex_data store can only be removed
2043 * after the sessions were flushed.
2044 * As the ex_data handling routines might also touch the session cache,
2045 * the most secure solution seems to be: empty (flush) the cache, then
2046 * free ex_data, then finally free the cache.
2047 * (See ticket [openssl.org #212].)
2049 if (a->sessions != NULL)
2050 SSL_CTX_flush_sessions(a, 0);
2052 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data);
2054 if (a->sessions != NULL)
2055 lh_SSL_SESSION_free(a->sessions);
2057 if (a->cert_store != NULL)
2058 X509_STORE_free(a->cert_store);
2059 if (a->cipher_list != NULL)
2060 sk_SSL_CIPHER_free(a->cipher_list);
2061 if (a->cipher_list_by_id != NULL)
2062 sk_SSL_CIPHER_free(a->cipher_list_by_id);
2063 if (a->cert != NULL)
2064 ssl_cert_free(a->cert);
2065 if (a->client_CA != NULL)
2066 sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free);
2067 if (a->extra_certs != NULL)
2068 sk_X509_pop_free(a->extra_certs, X509_free);
2069 a->comp_methods = NULL;
2071 #ifndef OPENSSL_NO_SRTP
2072 if (a->srtp_profiles)
2073 sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles);
2076 #ifndef OPENSSL_NO_PSK
2077 if (a->psk_identity_hint)
2078 OPENSSL_free(a->psk_identity_hint);
2080 #ifndef OPENSSL_NO_SRP
2081 SSL_CTX_SRP_CTX_free(a);
2083 #ifndef OPENSSL_NO_ENGINE
2084 if (a->client_cert_engine)
2085 ENGINE_finish(a->client_cert_engine);
2088 #ifndef OPENSSL_NO_TLSEXT
2089 # ifndef OPENSSL_NO_EC
2090 if (a->tlsext_ecpointformatlist)
2091 OPENSSL_free(a->tlsext_ecpointformatlist);
2092 if (a->tlsext_ellipticcurvelist)
2093 OPENSSL_free(a->tlsext_ellipticcurvelist);
2094 # endif /* OPENSSL_NO_EC */
2095 if (a->alpn_client_proto_list != NULL)
2096 OPENSSL_free(a->alpn_client_proto_list);
2102 void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb)
2104 ctx->default_passwd_callback = cb;
2107 void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u)
2109 ctx->default_passwd_callback_userdata = u;
2112 void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx,
2113 int (*cb) (X509_STORE_CTX *, void *),
2116 ctx->app_verify_callback = cb;
2117 ctx->app_verify_arg = arg;
2120 void SSL_CTX_set_verify(SSL_CTX *ctx, int mode,
2121 int (*cb) (int, X509_STORE_CTX *))
2123 ctx->verify_mode = mode;
2124 ctx->default_verify_callback = cb;
2127 void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth)
2129 X509_VERIFY_PARAM_set_depth(ctx->param, depth);
2132 void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg),
2135 ssl_cert_set_cert_cb(c->cert, cb, arg);
2138 void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg)
2140 ssl_cert_set_cert_cb(s->cert, cb, arg);
2143 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher)
2146 int rsa_enc, rsa_tmp, rsa_sign, dh_tmp, dh_rsa, dh_dsa, dsa_sign;
2147 int rsa_enc_export, dh_rsa_export, dh_dsa_export;
2148 int rsa_tmp_export, dh_tmp_export, kl;
2149 unsigned long mask_k, mask_a, emask_k, emask_a;
2150 #ifndef OPENSSL_NO_EC
2151 int have_ecc_cert, ecdsa_ok, ecc_pkey_size;
2152 int have_ecdh_tmp, ecdh_ok;
2154 EVP_PKEY *ecc_pkey = NULL;
2155 int signature_nid = 0, pk_nid = 0, md_nid = 0;
2160 kl = SSL_C_EXPORT_PKEYLENGTH(cipher);
2162 #ifndef OPENSSL_NO_RSA
2163 rsa_tmp = (c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL);
2164 rsa_tmp_export = (c->rsa_tmp_cb != NULL ||
2165 (rsa_tmp && RSA_size(c->rsa_tmp) * 8 <= kl));
2167 rsa_tmp = rsa_tmp_export = 0;
2169 #ifndef OPENSSL_NO_DH
2170 dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto);
2171 dh_tmp_export = !c->dh_tmp_auto && (c->dh_tmp_cb != NULL ||
2173 && DH_size(c->dh_tmp) * 8 <= kl));
2175 dh_tmp = dh_tmp_export = 0;
2178 #ifndef OPENSSL_NO_EC
2179 have_ecdh_tmp = (c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto);
2181 cpk = &(c->pkeys[SSL_PKEY_RSA_ENC]);
2182 rsa_enc = cpk->valid_flags & CERT_PKEY_VALID;
2183 rsa_enc_export = (rsa_enc && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
2184 cpk = &(c->pkeys[SSL_PKEY_RSA_SIGN]);
2185 rsa_sign = cpk->valid_flags & CERT_PKEY_SIGN;
2186 cpk = &(c->pkeys[SSL_PKEY_DSA_SIGN]);
2187 dsa_sign = cpk->valid_flags & CERT_PKEY_SIGN;
2188 cpk = &(c->pkeys[SSL_PKEY_DH_RSA]);
2189 dh_rsa = cpk->valid_flags & CERT_PKEY_VALID;
2190 dh_rsa_export = (dh_rsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
2191 cpk = &(c->pkeys[SSL_PKEY_DH_DSA]);
2192 /* FIX THIS EAY EAY EAY */
2193 dh_dsa = cpk->valid_flags & CERT_PKEY_VALID;
2194 dh_dsa_export = (dh_dsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl);
2195 cpk = &(c->pkeys[SSL_PKEY_ECC]);
2196 #ifndef OPENSSL_NO_EC
2197 have_ecc_cert = cpk->valid_flags & CERT_PKEY_VALID;
2206 "rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n",
2207 rsa_tmp, rsa_tmp_export, dh_tmp, have_ecdh_tmp, rsa_enc,
2208 rsa_enc_export, rsa_sign, dsa_sign, dh_rsa, dh_dsa);
2211 cpk = &(c->pkeys[SSL_PKEY_GOST01]);
2212 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2213 mask_k |= SSL_kGOST;
2214 mask_a |= SSL_aGOST01;
2216 cpk = &(c->pkeys[SSL_PKEY_GOST94]);
2217 if (cpk->x509 != NULL && cpk->privatekey != NULL) {
2218 mask_k |= SSL_kGOST;
2219 mask_a |= SSL_aGOST94;
2222 if (rsa_enc || (rsa_tmp && rsa_sign))
2224 if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc)))
2225 emask_k |= SSL_kRSA;
2228 emask_k |= SSL_kDHE;
2236 emask_k |= SSL_kDHr;
2241 emask_k |= SSL_kDHd;
2243 if (emask_k & (SSL_kDHr | SSL_kDHd))
2246 if (rsa_enc || rsa_sign) {
2248 emask_a |= SSL_aRSA;
2253 emask_a |= SSL_aDSS;
2256 mask_a |= SSL_aNULL;
2257 emask_a |= SSL_aNULL;
2259 #ifndef OPENSSL_NO_KRB5
2260 mask_k |= SSL_kKRB5;
2261 mask_a |= SSL_aKRB5;
2262 emask_k |= SSL_kKRB5;
2263 emask_a |= SSL_aKRB5;
2267 * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites
2268 * depending on the key usage extension.
2270 #ifndef OPENSSL_NO_EC
2271 if (have_ecc_cert) {
2272 cpk = &c->pkeys[SSL_PKEY_ECC];
2274 /* This call populates extension flags (ex_flags) */
2275 X509_check_purpose(x, -1, 0);
2276 ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2277 (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1;
2278 ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ?
2279 (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1;
2280 if (!(cpk->valid_flags & CERT_PKEY_SIGN))
2282 ecc_pkey = X509_get_pubkey(x);
2283 ecc_pkey_size = (ecc_pkey != NULL) ? EVP_PKEY_bits(ecc_pkey) : 0;
2284 EVP_PKEY_free(ecc_pkey);
2285 if ((x->sig_alg) && (x->sig_alg->algorithm)) {
2286 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2287 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2291 if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa) {
2292 mask_k |= SSL_kECDHr;
2293 mask_a |= SSL_aECDH;
2294 if (ecc_pkey_size <= 163) {
2295 emask_k |= SSL_kECDHr;
2296 emask_a |= SSL_aECDH;
2300 if (pk_nid == NID_X9_62_id_ecPublicKey) {
2301 mask_k |= SSL_kECDHe;
2302 mask_a |= SSL_aECDH;
2303 if (ecc_pkey_size <= 163) {
2304 emask_k |= SSL_kECDHe;
2305 emask_a |= SSL_aECDH;
2310 mask_a |= SSL_aECDSA;
2311 emask_a |= SSL_aECDSA;
2316 #ifndef OPENSSL_NO_EC
2317 if (have_ecdh_tmp) {
2318 mask_k |= SSL_kECDHE;
2319 emask_k |= SSL_kECDHE;
2323 #ifndef OPENSSL_NO_PSK
2326 emask_k |= SSL_kPSK;
2327 emask_a |= SSL_aPSK;
2332 c->export_mask_k = emask_k;
2333 c->export_mask_a = emask_a;
2337 /* This handy macro borrowed from crypto/x509v3/v3_purp.c */
2338 #define ku_reject(x, usage) \
2339 (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage)))
2341 #ifndef OPENSSL_NO_EC
2343 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s)
2345 unsigned long alg_k, alg_a;
2346 EVP_PKEY *pkey = NULL;
2348 int signature_nid = 0, md_nid = 0, pk_nid = 0;
2349 const SSL_CIPHER *cs = s->s3->tmp.new_cipher;
2351 alg_k = cs->algorithm_mkey;
2352 alg_a = cs->algorithm_auth;
2354 if (SSL_C_IS_EXPORT(cs)) {
2355 /* ECDH key length in export ciphers must be <= 163 bits */
2356 pkey = X509_get_pubkey(x);
2359 keysize = EVP_PKEY_bits(pkey);
2360 EVP_PKEY_free(pkey);
2365 /* This call populates the ex_flags field correctly */
2366 X509_check_purpose(x, -1, 0);
2367 if ((x->sig_alg) && (x->sig_alg->algorithm)) {
2368 signature_nid = OBJ_obj2nid(x->sig_alg->algorithm);
2369 OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid);
2371 if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr) {
2372 /* key usage, if present, must allow key agreement */
2373 if (ku_reject(x, X509v3_KU_KEY_AGREEMENT)) {
2374 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2375 SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT);
2378 if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION) {
2379 /* signature alg must be ECDSA */
2380 if (pk_nid != NID_X9_62_id_ecPublicKey) {
2381 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2382 SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE);
2386 if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION) {
2387 /* signature alg must be RSA */
2389 if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa) {
2390 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2391 SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE);
2396 if (alg_a & SSL_aECDSA) {
2397 /* key usage, if present, must allow signing */
2398 if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE)) {
2399 SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG,
2400 SSL_R_ECC_CERT_NOT_FOR_SIGNING);
2405 return 1; /* all checks are ok */
2410 static int ssl_get_server_cert_index(const SSL *s)
2413 idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
2414 if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509)
2415 idx = SSL_PKEY_RSA_SIGN;
2417 SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX, ERR_R_INTERNAL_ERROR);
2421 CERT_PKEY *ssl_get_server_send_pkey(const SSL *s)
2427 if (!s->s3 || !s->s3->tmp.new_cipher)
2429 ssl_set_cert_masks(c, s->s3->tmp.new_cipher);
2431 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2433 * Broken protocol test: return last used certificate: which may mismatch
2436 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2440 i = ssl_get_server_cert_index(s);
2442 /* This may or may not be an error. */
2447 return &c->pkeys[i];
2450 EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher,
2453 unsigned long alg_a;
2457 alg_a = cipher->algorithm_auth;
2460 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
2462 * Broken protocol test: use last key: which may mismatch the one
2465 if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL)
2466 idx = c->key - c->pkeys;
2470 if ((alg_a & SSL_aDSS) &&
2471 (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL))
2472 idx = SSL_PKEY_DSA_SIGN;
2473 else if (alg_a & SSL_aRSA) {
2474 if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL)
2475 idx = SSL_PKEY_RSA_SIGN;
2476 else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL)
2477 idx = SSL_PKEY_RSA_ENC;
2478 } else if ((alg_a & SSL_aECDSA) &&
2479 (c->pkeys[SSL_PKEY_ECC].privatekey != NULL))
2482 SSLerr(SSL_F_SSL_GET_SIGN_PKEY, ERR_R_INTERNAL_ERROR);
2486 *pmd = c->pkeys[idx].digest;
2487 return c->pkeys[idx].privatekey;
2490 #ifndef OPENSSL_NO_TLSEXT
2491 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
2492 size_t *serverinfo_length)
2496 *serverinfo_length = 0;
2499 i = ssl_get_server_cert_index(s);
2503 if (c->pkeys[i].serverinfo == NULL)
2506 *serverinfo = c->pkeys[i].serverinfo;
2507 *serverinfo_length = c->pkeys[i].serverinfo_length;
2512 void ssl_update_cache(SSL *s, int mode)
2517 * If the session_id_length is 0, we are not supposed to cache it, and it
2518 * would be rather hard to do anyway :-)
2520 if (s->session->session_id_length == 0)
2523 i = s->session_ctx->session_cache_mode;
2524 if ((i & mode) && (!s->hit)
2525 && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE)
2526 || SSL_CTX_add_session(s->session_ctx, s->session))
2527 && (s->session_ctx->new_session_cb != NULL)) {
2528 CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION);
2529 if (!s->session_ctx->new_session_cb(s, s->session))
2530 SSL_SESSION_free(s->session);
2533 /* auto flush every 255 connections */
2534 if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) {
2535 if ((((mode & SSL_SESS_CACHE_CLIENT)
2536 ? s->session_ctx->stats.sess_connect_good
2537 : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) {
2538 SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL));
2543 const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx)
2548 const SSL_METHOD *SSL_get_ssl_method(SSL *s)
2553 int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth)
2558 if (s->method != meth) {
2559 if (s->handshake_func != NULL)
2560 conn = (s->handshake_func == s->method->ssl_connect);
2562 if (s->method->version == meth->version)
2565 s->method->ssl_free(s);
2567 ret = s->method->ssl_new(s);
2571 s->handshake_func = meth->ssl_connect;
2573 s->handshake_func = meth->ssl_accept;
2578 int SSL_get_error(const SSL *s, int i)
2585 return (SSL_ERROR_NONE);
2588 * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc,
2589 * where we do encode the error
2591 if ((l = ERR_peek_error()) != 0) {
2592 if (ERR_GET_LIB(l) == ERR_LIB_SYS)
2593 return (SSL_ERROR_SYSCALL);
2595 return (SSL_ERROR_SSL);
2598 if ((i < 0) && SSL_want_read(s)) {
2599 bio = SSL_get_rbio(s);
2600 if (BIO_should_read(bio))
2601 return (SSL_ERROR_WANT_READ);
2602 else if (BIO_should_write(bio))
2604 * This one doesn't make too much sense ... We never try to write
2605 * to the rbio, and an application program where rbio and wbio
2606 * are separate couldn't even know what it should wait for.
2607 * However if we ever set s->rwstate incorrectly (so that we have
2608 * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and
2609 * wbio *are* the same, this test works around that bug; so it
2610 * might be safer to keep it.
2612 return (SSL_ERROR_WANT_WRITE);
2613 else if (BIO_should_io_special(bio)) {
2614 reason = BIO_get_retry_reason(bio);
2615 if (reason == BIO_RR_CONNECT)
2616 return (SSL_ERROR_WANT_CONNECT);
2617 else if (reason == BIO_RR_ACCEPT)
2618 return (SSL_ERROR_WANT_ACCEPT);
2620 return (SSL_ERROR_SYSCALL); /* unknown */
2624 if ((i < 0) && SSL_want_write(s)) {
2625 bio = SSL_get_wbio(s);
2626 if (BIO_should_write(bio))
2627 return (SSL_ERROR_WANT_WRITE);
2628 else if (BIO_should_read(bio))
2630 * See above (SSL_want_read(s) with BIO_should_write(bio))
2632 return (SSL_ERROR_WANT_READ);
2633 else if (BIO_should_io_special(bio)) {
2634 reason = BIO_get_retry_reason(bio);
2635 if (reason == BIO_RR_CONNECT)
2636 return (SSL_ERROR_WANT_CONNECT);
2637 else if (reason == BIO_RR_ACCEPT)
2638 return (SSL_ERROR_WANT_ACCEPT);
2640 return (SSL_ERROR_SYSCALL);
2643 if ((i < 0) && SSL_want_x509_lookup(s)) {
2644 return (SSL_ERROR_WANT_X509_LOOKUP);
2648 if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) &&
2649 (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY))
2650 return (SSL_ERROR_ZERO_RETURN);
2652 return (SSL_ERROR_SYSCALL);
2655 int SSL_do_handshake(SSL *s)
2659 if (s->handshake_func == NULL) {
2660 SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET);
2664 s->method->ssl_renegotiate_check(s);
2666 if (SSL_in_init(s) || SSL_in_before(s)) {
2667 ret = s->handshake_func(s);
2673 * For the next 2 functions, SSL_clear() sets shutdown and so one of these
2674 * calls will reset it
2676 void SSL_set_accept_state(SSL *s)
2680 s->state = SSL_ST_ACCEPT | SSL_ST_BEFORE;
2681 s->handshake_func = s->method->ssl_accept;
2682 /* clear the current cipher */
2683 ssl_clear_cipher_ctx(s);
2684 ssl_clear_hash_ctx(&s->read_hash);
2685 ssl_clear_hash_ctx(&s->write_hash);
2688 void SSL_set_connect_state(SSL *s)
2692 s->state = SSL_ST_CONNECT | SSL_ST_BEFORE;
2693 s->handshake_func = s->method->ssl_connect;
2694 /* clear the current cipher */
2695 ssl_clear_cipher_ctx(s);
2696 ssl_clear_hash_ctx(&s->read_hash);
2697 ssl_clear_hash_ctx(&s->write_hash);
2700 int ssl_undefined_function(SSL *s)
2702 SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2706 int ssl_undefined_void_function(void)
2708 SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION,
2709 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2713 int ssl_undefined_const_function(const SSL *s)
2715 SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION,
2716 ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2720 SSL_METHOD *ssl_bad_method(int ver)
2722 SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
2726 const char *SSL_get_version(const SSL *s)
2728 if (s->version == TLS1_2_VERSION)
2730 else if (s->version == TLS1_1_VERSION)
2732 else if (s->version == TLS1_VERSION)
2734 else if (s->version == SSL3_VERSION)
2736 else if (s->version == DTLS1_BAD_VER)
2737 return ("DTLSv0.9");
2738 else if (s->version == DTLS1_VERSION)
2740 else if (s->version == DTLS1_2_VERSION)
2741 return ("DTLSv1.2");
2746 SSL *SSL_dup(SSL *s)
2748 STACK_OF(X509_NAME) *sk;
2753 if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL)
2756 ret->version = s->version;
2757 ret->type = s->type;
2758 ret->method = s->method;
2760 if (s->session != NULL) {
2761 /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */
2762 if(!SSL_copy_session_id(ret, s))
2766 * No session has been established yet, so we have to expect that
2767 * s->cert or ret->cert will be changed later -- they should not both
2768 * point to the same object, and thus we can't use
2769 * SSL_copy_session_id.
2772 ret->method->ssl_free(ret);
2773 ret->method = s->method;
2774 ret->method->ssl_new(ret);
2776 if (s->cert != NULL) {
2777 if (ret->cert != NULL) {
2778 ssl_cert_free(ret->cert);
2780 ret->cert = ssl_cert_dup(s->cert);
2781 if (ret->cert == NULL)
2785 if(!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)
3050 if (ssl->ctx == ctx)
3052 #ifndef OPENSSL_NO_TLSEXT
3054 ctx = ssl->initial_ctx;
3056 new_cert = ssl_cert_dup(ctx->cert);
3057 if (new_cert == NULL) {
3060 /* Preserve any already negotiated parameters */
3062 new_cert->peer_sigalgs = ssl->cert->peer_sigalgs;
3063 new_cert->peer_sigalgslen = ssl->cert->peer_sigalgslen;
3064 ssl->cert->peer_sigalgs = NULL;
3065 new_cert->ciphers_raw = ssl->cert->ciphers_raw;
3066 new_cert->ciphers_rawlen = ssl->cert->ciphers_rawlen;
3067 ssl->cert->ciphers_raw = NULL;
3069 ssl_cert_free(ssl->cert);
3070 ssl->cert = new_cert;
3073 * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),
3074 * so setter APIs must prevent invalid lengths from entering the system.
3076 OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx));
3079 * If the session ID context matches that of the parent SSL_CTX,
3080 * inherit it from the new SSL_CTX as well. If however the context does
3081 * not match (i.e., it was set per-ssl with SSL_set_session_id_context),
3082 * leave it unchanged.
3084 if ((ssl->ctx != NULL) &&
3085 (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) &&
3086 (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) {
3087 ssl->sid_ctx_length = ctx->sid_ctx_length;
3088 memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx));
3091 CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX);
3092 if (ssl->ctx != NULL)
3093 SSL_CTX_free(ssl->ctx); /* decrement reference count */
3099 #ifndef OPENSSL_NO_STDIO
3100 int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx)
3102 return (X509_STORE_set_default_paths(ctx->cert_store));
3105 int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile,
3108 return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath));
3112 void SSL_set_info_callback(SSL *ssl,
3113 void (*cb) (const SSL *ssl, int type, int val))
3115 ssl->info_callback = cb;
3119 * One compiler (Diab DCC) doesn't like argument names in returned function
3122 void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ ,
3125 return ssl->info_callback;
3128 int SSL_state(const SSL *ssl)
3130 return (ssl->state);
3133 void SSL_set_state(SSL *ssl, int state)
3138 void SSL_set_verify_result(SSL *ssl, long arg)
3140 ssl->verify_result = arg;
3143 long SSL_get_verify_result(const SSL *ssl)
3145 return (ssl->verify_result);
3148 int SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
3149 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
3151 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp,
3152 new_func, dup_func, free_func);
3155 int SSL_set_ex_data(SSL *s, int idx, void *arg)
3157 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
3160 void *SSL_get_ex_data(const SSL *s, int idx)
3162 return (CRYPTO_get_ex_data(&s->ex_data, idx));
3165 int SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
3166 CRYPTO_EX_dup *dup_func,
3167 CRYPTO_EX_free *free_func)
3169 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp,
3170 new_func, dup_func, free_func);
3173 int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg)
3175 return (CRYPTO_set_ex_data(&s->ex_data, idx, arg));
3178 void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx)
3180 return (CRYPTO_get_ex_data(&s->ex_data, idx));
3188 X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx)
3190 return (ctx->cert_store);
3193 void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store)
3195 if (ctx->cert_store != NULL)
3196 X509_STORE_free(ctx->cert_store);
3197 ctx->cert_store = store;
3200 int SSL_want(const SSL *s)
3202 return (s->rwstate);
3206 * \brief Set the callback for generating temporary RSA keys.
3207 * \param ctx the SSL context.
3208 * \param cb the callback
3211 #ifndef OPENSSL_NO_RSA
3212 void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb) (SSL *ssl,
3216 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb);
3219 void SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb) (SSL *ssl,
3223 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb);
3229 * \brief The RSA temporary key callback function.
3230 * \param ssl the SSL session.
3231 * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite.
3232 * \param keylength if \c is_export is \c TRUE, then \c keylength is the size
3233 * of the required key in bits.
3234 * \return the temporary RSA key.
3235 * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback
3238 RSA *cb(SSL *ssl, int is_export, int keylength)
3244 * \brief Set the callback for generating temporary DH keys.
3245 * \param ctx the SSL context.
3246 * \param dh the callback
3249 #ifndef OPENSSL_NO_DH
3250 void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx,
3251 DH *(*dh) (SSL *ssl, int is_export,
3254 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3257 void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export,
3260 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh);
3264 #ifndef OPENSSL_NO_EC
3265 void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx,
3266 EC_KEY *(*ecdh) (SSL *ssl, int is_export,
3269 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB,
3270 (void (*)(void))ecdh);
3273 void SSL_set_tmp_ecdh_callback(SSL *ssl,
3274 EC_KEY *(*ecdh) (SSL *ssl, int is_export,
3277 SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB, (void (*)(void))ecdh);
3281 #ifndef OPENSSL_NO_PSK
3282 int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint)
3284 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3285 SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT,
3286 SSL_R_DATA_LENGTH_TOO_LONG);
3289 if (ctx->psk_identity_hint != NULL)
3290 OPENSSL_free(ctx->psk_identity_hint);
3291 if (identity_hint != NULL) {
3292 ctx->psk_identity_hint = BUF_strdup(identity_hint);
3293 if (ctx->psk_identity_hint == NULL)
3296 ctx->psk_identity_hint = NULL;
3300 int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint)
3305 if (s->session == NULL)
3306 return 1; /* session not created yet, ignored */
3308 if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) {
3309 SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG);
3312 if (s->session->psk_identity_hint != NULL)
3313 OPENSSL_free(s->session->psk_identity_hint);
3314 if (identity_hint != NULL) {
3315 s->session->psk_identity_hint = BUF_strdup(identity_hint);
3316 if (s->session->psk_identity_hint == NULL)
3319 s->session->psk_identity_hint = NULL;
3323 const char *SSL_get_psk_identity_hint(const SSL *s)
3325 if (s == NULL || s->session == NULL)
3327 return (s->session->psk_identity_hint);
3330 const char *SSL_get_psk_identity(const SSL *s)
3332 if (s == NULL || s->session == NULL)
3334 return (s->session->psk_identity);
3337 void SSL_set_psk_client_callback(SSL *s,
3338 unsigned int (*cb) (SSL *ssl,
3347 s->psk_client_callback = cb;
3350 void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx,
3351 unsigned int (*cb) (SSL *ssl,
3360 ctx->psk_client_callback = cb;
3363 void SSL_set_psk_server_callback(SSL *s,
3364 unsigned int (*cb) (SSL *ssl,
3365 const char *identity,
3370 s->psk_server_callback = cb;
3373 void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx,
3374 unsigned int (*cb) (SSL *ssl,
3375 const char *identity,
3380 ctx->psk_server_callback = cb;
3384 void SSL_CTX_set_msg_callback(SSL_CTX *ctx,
3385 void (*cb) (int write_p, int version,
3386 int content_type, const void *buf,
3387 size_t len, SSL *ssl, void *arg))
3389 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3392 void SSL_set_msg_callback(SSL *ssl,
3393 void (*cb) (int write_p, int version,
3394 int content_type, const void *buf,
3395 size_t len, SSL *ssl, void *arg))
3397 SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb);
3400 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx,
3401 int (*cb) (SSL *ssl,
3405 SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3406 (void (*)(void))cb);
3409 void SSL_set_not_resumable_session_callback(SSL *ssl,
3410 int (*cb) (SSL *ssl,
3411 int is_forward_secure))
3413 SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB,
3414 (void (*)(void))cb);
3418 * Allocates new EVP_MD_CTX and sets pointer to it into given pointer
3419 * vairable, freeing EVP_MD_CTX previously stored in that variable, if any.
3420 * If EVP_MD pointer is passed, initializes ctx with this md Returns newly
3424 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md)
3426 ssl_clear_hash_ctx(hash);
3427 *hash = EVP_MD_CTX_create();
3429 EVP_DigestInit_ex(*hash, md, NULL);
3433 void ssl_clear_hash_ctx(EVP_MD_CTX **hash)
3437 EVP_MD_CTX_destroy(*hash);
3441 /* Retrieve handshake hashes */
3442 int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen)
3444 unsigned char *p = out;
3449 EVP_MD_CTX_init(&ctx);
3450 for (idx = 0; ssl_get_handshake_digest(idx, &mask, &md); idx++) {
3451 if (mask & ssl_get_algorithm2(s)) {
3452 int hashsize = EVP_MD_size(md);
3453 EVP_MD_CTX *hdgst = s->s3->handshake_dgst[idx];
3454 if (!hdgst || hashsize < 0 || hashsize > outlen)
3456 if (!EVP_MD_CTX_copy_ex(&ctx, hdgst))
3458 if (!EVP_DigestFinal_ex(&ctx, p, NULL))
3466 EVP_MD_CTX_cleanup(&ctx);
3470 void SSL_set_debug(SSL *s, int debug)
3475 int SSL_cache_hit(SSL *s)
3480 int SSL_is_server(SSL *s)
3485 void SSL_set_security_level(SSL *s, int level)
3487 s->cert->sec_level = level;
3490 int SSL_get_security_level(const SSL *s)
3492 return s->cert->sec_level;
3495 void SSL_set_security_callback(SSL *s,
3496 int (*cb) (SSL *s, SSL_CTX *ctx, int op,
3497 int bits, int nid, void *other,
3500 s->cert->sec_cb = cb;
3503 int (*SSL_get_security_callback(const SSL *s)) (SSL *s, SSL_CTX *ctx, int op,
3505 void *other, void *ex) {
3506 return s->cert->sec_cb;
3509 void SSL_set0_security_ex_data(SSL *s, void *ex)
3511 s->cert->sec_ex = ex;
3514 void *SSL_get0_security_ex_data(const SSL *s)
3516 return s->cert->sec_ex;
3519 void SSL_CTX_set_security_level(SSL_CTX *ctx, int level)
3521 ctx->cert->sec_level = level;
3524 int SSL_CTX_get_security_level(const SSL_CTX *ctx)
3526 return ctx->cert->sec_level;
3529 void SSL_CTX_set_security_callback(SSL_CTX *ctx,
3530 int (*cb) (SSL *s, SSL_CTX *ctx, int op,
3531 int bits, int nid, void *other,
3534 ctx->cert->sec_cb = cb;
3537 int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (SSL *s,
3543 return ctx->cert->sec_cb;
3546 void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex)
3548 ctx->cert->sec_ex = ex;
3551 void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx)
3553 return ctx->cert->sec_ex;
3556 IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);