include/openssl/dtls1.h

0001 /*
0002  * Copyright 2005-2021 The OpenSSL Project Authors. All Rights Reserved.
0003  *
0004  * Licensed under the Apache License 2.0 (the "License").  You may not use
0005  * this file except in compliance with the License.  You can obtain a copy
0006  * in the file LICENSE in the source distribution or at
0007  * https://www.openssl.org/source/license.html
0008  */
0009
0010 #ifndef OPENSSL_DTLS1_H
0011 #define OPENSSL_DTLS1_H
0012 #pragma once
0013
0014 #include <openssl/macros.h>
0015 #ifndef OPENSSL_NO_DEPRECATED_3_0
0016 #define HEADER_DTLS1_H
0017 #endif
0018
0019 #include <openssl/prov_ssl.h>
0020
0021 #ifdef __cplusplus
0022 extern "C" {
0023 #endif
0024
0025 #include <openssl/opensslconf.h>
0026
0027 /* DTLS*_VERSION constants are defined in prov_ssl.h */
0028 #ifndef OPENSSL_NO_DEPRECATED_3_0
0029 #define DTLS_MIN_VERSION DTLS1_VERSION
0030 #define DTLS_MAX_VERSION DTLS1_2_VERSION
0031 #endif
0032 #define DTLS1_VERSION_MAJOR 0xFE
0033
0034 /* Special value for method supporting multiple versions */
0035 #define DTLS_ANY_VERSION 0x1FFFF
0036
0037 /* lengths of messages */
0038
0039 #define DTLS1_COOKIE_LENGTH 255
0040
0041 #define DTLS1_RT_HEADER_LENGTH 13
0042
0043 #define DTLS1_HM_HEADER_LENGTH 12
0044
0045 #define DTLS1_HM_BAD_FRAGMENT -2
0046 #define DTLS1_HM_FRAGMENT_RETRY -3
0047
0048 #define DTLS1_CCS_HEADER_LENGTH 1
0049
0050 #define DTLS1_AL_HEADER_LENGTH 2
0051
0052 #define DTLS1_TMO_ALERT_COUNT 12
0053
0054 #ifdef __cplusplus
0055 }
0056 #endif
0057 #endif