/*
- * DTLS implementation written by Nagendra Modadugu
- * (nagendra@cs.stanford.edu) for the OpenSSL project 2005.
- */
-/* ====================================================================
- * Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * openssl-core@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
+ * Copyright 2005-2016 The OpenSSL Project Authors. All Rights Reserved.
*
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
#include <stdio.h>
if (!DTLS_RECORD_LAYER_new(&s->rlayer)) {
return 0;
}
-
+
if (!ssl3_new(s))
return (0);
if ((d1 = OPENSSL_zalloc(sizeof(*d1))) == NULL) {
}
static void dtls1_clear_queues(SSL *s)
+{
+ dtls1_clear_received_buffer(s);
+ dtls1_clear_sent_buffer(s);
+}
+
+void dtls1_clear_received_buffer(SSL *s)
{
pitem *item = NULL;
hm_fragment *frag = NULL;
dtls1_hm_fragment_free(frag);
pitem_free(item);
}
+}
+
+void dtls1_clear_sent_buffer(SSL *s)
+{
+ pitem *item = NULL;
+ hm_fragment *frag = NULL;
while ((item = pqueue_pop(s->d1->sent_messages)) != NULL) {
frag = (hm_fragment *)item->data;
}
}
+
void dtls1_free(SSL *s)
{
DTLS_RECORD_LAYER_free(&s->rlayer);
}
ssl3_clear(s);
- if (s->options & SSL_OP_CISCO_ANYCONNECT)
- s->client_version = s->version = DTLS1_BAD_VER;
- else if (s->method->version == DTLS_ANY_VERSION)
+
+ if (s->method->version == DTLS_ANY_VERSION)
s->version = DTLS_MAX_VERSION;
+#ifndef OPENSSL_NO_DTLS1_METHOD
+ else if (s->options & SSL_OP_CISCO_ANYCONNECT)
+ s->client_version = s->version = DTLS1_BAD_VER;
+#endif
else
s->version = s->method->version;
}
/*
* If remaining time is less than 15 ms, set it to 0 to prevent issues
- * because of small devergences with socket timeouts.
+ * because of small divergences with socket timeouts.
*/
if (timeleft->tv_sec == 0 && timeleft->tv_usec < 15000) {
memset(timeleft, 0, sizeof(*timeleft));
BIO_ctrl(SSL_get_rbio(s), BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT, 0,
&(s->d1->next_timeout));
/* Clear retransmission buffer */
- dtls1_clear_record_buffer(s);
+ dtls1_clear_sent_buffer(s);
}
int dtls1_check_timeout_num(SSL *s)
if (s->d1->timeout.num_alerts > 2
&& !(SSL_get_options(s) & SSL_OP_NO_QUERY_MTU)) {
mtu =
- BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_GET_FALLBACK_MTU, 0,
- NULL);
+ BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_GET_FALLBACK_MTU, 0, NULL);
if (mtu < s->d1->mtu)
s->d1->mtu = mtu;
}
GetSystemTime(&st);
SystemTimeToFileTime(&st, &now.ft);
+ /* re-bias to 1/1/1970 */
# ifdef __MINGW32__
now.ul -= 116444736000000000ULL;
# else
- now.ul -= 116444736000000000UI64; /* re-bias to 1/1/1970 */
+ /* *INDENT-OFF* */
+ now.ul -= 116444736000000000UI64;
+ /* *INDENT-ON* */
# endif
t->tv_sec = (long)(now.ul / 10000000);
t->tv_usec = ((int)(now.ul % 10000000)) / 10;
#endif
}
-
#define LISTEN_SUCCESS 2
#define LISTEN_SEND_VERIFY_REQUEST 1
rbio = SSL_get_rbio(s);
wbio = SSL_get_wbio(s);
- if(!rbio || !wbio) {
+ if (!rbio || !wbio) {
SSLerr(SSL_F_DTLSV1_LISTEN, SSL_R_BIO_NOT_SET);
return -1;
}
n = BIO_read(rbio, buf, SSL3_RT_MAX_PLAIN_LENGTH);
if (n <= 0) {
- if(BIO_should_retry(rbio)) {
+ if (BIO_should_retry(rbio)) {
/* Non-blocking IO */
goto end;
}
goto end;
}
- if (rectype != SSL3_RT_HANDSHAKE) {
+ if (rectype != SSL3_RT_HANDSHAKE) {
SSLerr(SSL_F_DTLSV1_LISTEN, SSL_R_UNEXPECTED_MESSAGE);
goto end;
}
}
/* Message sequence number can only be 0 or 1 */
- if(msgseq > 2) {
+ if (msgseq > 2) {
SSLerr(SSL_F_DTLSV1_LISTEN, SSL_R_INVALID_SEQUENCE_NUMBER);
goto end;
}
s->msg_callback(1, 0, SSL3_RT_HEADER, buf,
DTLS1_RT_HEADER_LENGTH, s, s->msg_callback_arg);
-
if ((tmpclient = BIO_ADDR_new()) == NULL) {
SSLerr(SSL_F_DTLSV1_LISTEN, ERR_R_MALLOC_FAILURE);
goto end;
* maybe they're not. We ignore errors here - some BIOs do not
* support this.
*/
- if(BIO_dgram_get_peer(rbio, tmpclient) > 0) {
+ if (BIO_dgram_get_peer(rbio, tmpclient) > 0) {
(void)BIO_dgram_set_peer(wbio, tmpclient);
}
BIO_ADDR_free(tmpclient);
tmpclient = NULL;
if (BIO_write(wbio, buf, reclen) < (int)reclen) {
- if(BIO_should_retry(wbio)) {
+ if (BIO_should_retry(wbio)) {
/*
* Non-blocking IO...but we're stateless, so we're just
* going to drop this packet.
}
if (BIO_flush(wbio) <= 0) {
- if(BIO_should_retry(wbio)) {
+ if (BIO_should_retry(wbio)) {
/*
* Non-blocking IO...but we're stateless, so we're just
* going to drop this packet.
*/
ossl_statem_set_hello_verify_done(s);
- /* Some BIOs may not support this. If we fail we clear the client address */
+ /*
+ * Some BIOs may not support this. If we fail we clear the client address
+ */
if (BIO_dgram_get_peer(rbio, client) <= 0)
BIO_ADDR_clear(client);
ret = 1;
clearpkt = 0;
-end:
+ end:
BIO_ADDR_free(tmpclient);
BIO_ctrl(SSL_get_rbio(s), BIO_CTRL_DGRAM_SET_PEEK_MODE, 0, NULL);
if (clearpkt) {
#ifndef OPENSSL_NO_HEARTBEATS
-#define HEARTBEAT_SIZE(payload, padding) ( \
+# define HEARTBEAT_SIZE(payload, padding) ( \
1 /* heartbeat type */ + \
2 /* heartbeat length */ + \
(payload) + (padding))
-#define HEARTBEAT_SIZE_STD(payload) HEARTBEAT_SIZE(payload, 16)
+# define HEARTBEAT_SIZE_STD(payload) HEARTBEAT_SIZE(payload, 16)
int dtls1_process_heartbeat(SSL *s, unsigned char *p, unsigned int length)
{
/*-
* Create HeartBeat message, we just use a sequence number
- * as payload to distuingish different messages and add
+ * as payload to distinguish different messages and add
* some random stuff.
*/
size = HEARTBEAT_SIZE(payload, padding);
if (ret >= 0) {
if (s->msg_callback)
s->msg_callback(1, s->version, DTLS1_RT_HEARTBEAT,
- buf, size,
- s, s->msg_callback_arg);
+ buf, size, s, s->msg_callback_arg);
dtls1_start_timer(s);
s->tlsext_hb_pending = 1;