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