1/*
2 * Copyright 2005-2021 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10#ifndef OPENSSL_DTLS1_H
11# define OPENSSL_DTLS1_H
12# pragma once
13
14# include <openssl/macros.h>
15# ifndef OPENSSL_NO_DEPRECATED_3_0
16# define HEADER_DTLS1_H
17# endif
18
19# include <openssl/prov_ssl.h>
20
21#ifdef __cplusplus
22extern "C" {
23#endif
24
25#include <openssl/opensslconf.h>
26
27/* DTLS*_VERSION constants are defined in prov_ssl.h */
28# ifndef OPENSSL_NO_DEPRECATED_3_0
29# define DTLS_MIN_VERSION DTLS1_VERSION
30# define DTLS_MAX_VERSION DTLS1_2_VERSION
31# endif
32# define DTLS1_VERSION_MAJOR 0xFE
33
34/* Special value for method supporting multiple versions */
35# define DTLS_ANY_VERSION 0x1FFFF
36
37/* lengths of messages */
38
39# define DTLS1_COOKIE_LENGTH 255
40
41# define DTLS1_RT_HEADER_LENGTH 13
42
43# define DTLS1_HM_HEADER_LENGTH 12
44
45# define DTLS1_HM_BAD_FRAGMENT -2
46# define DTLS1_HM_FRAGMENT_RETRY -3
47
48# define DTLS1_CCS_HEADER_LENGTH 1
49
50# define DTLS1_AL_HEADER_LENGTH 2
51
52# define DTLS1_TMO_ALERT_COUNT 12
53
54#ifdef __cplusplus
55}
56#endif
57#endif
58