104 lines
3.7 KiB
C
104 lines
3.7 KiB
C
/* $OpenBSD: dtls1.h,v 1.27 2021/05/16 13:56:30 jsing Exp $ */
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/*
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* DTLS implementation written by Nagendra Modadugu
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* (nagendra@cs.stanford.edu) for the OpenSSL project 2005.
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*/
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/* ====================================================================
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* Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#ifndef HEADER_DTLS1_H
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#define HEADER_DTLS1_H
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#include <sys/time.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <openssl/opensslconf.h>
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#include <openssl/buffer.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define DTLS1_VERSION 0xFEFF
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#define DTLS1_2_VERSION 0xFEFD
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#define DTLS1_VERSION_MAJOR 0xFE
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/* lengths of messages */
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#define DTLS1_COOKIE_LENGTH 256
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#define DTLS1_RT_HEADER_LENGTH 13
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#define DTLS1_HM_HEADER_LENGTH 12
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#define DTLS1_HM_BAD_FRAGMENT -2
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#define DTLS1_HM_FRAGMENT_RETRY -3
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#define DTLS1_CCS_HEADER_LENGTH 1
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#define DTLS1_AL_HEADER_LENGTH 2
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/* Timeout multipliers (timeout slice is defined in apps/timeouts.h */
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#define DTLS1_TMO_READ_COUNT 2
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#define DTLS1_TMO_WRITE_COUNT 2
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#define DTLS1_TMO_ALERT_COUNT 12
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#ifdef __cplusplus
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}
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#endif
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#endif
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