1*4724848cSchristos /* 2*4724848cSchristos * Copyright 2005-2018 The OpenSSL Project Authors. All Rights Reserved. 3*4724848cSchristos * 4*4724848cSchristos * Licensed under the OpenSSL license (the "License"). You may not use 5*4724848cSchristos * this file except in compliance with the License. You can obtain a copy 6*4724848cSchristos * in the file LICENSE in the source distribution or at 7*4724848cSchristos * https://www.openssl.org/source/license.html 8*4724848cSchristos */ 9*4724848cSchristos 10*4724848cSchristos #ifndef HEADER_DTLS1_H 11*4724848cSchristos # define HEADER_DTLS1_H 12*4724848cSchristos 13*4724848cSchristos #ifdef __cplusplus 14*4724848cSchristos extern "C" { 15*4724848cSchristos #endif 16*4724848cSchristos 17*4724848cSchristos # define DTLS1_VERSION 0xFEFF 18*4724848cSchristos # define DTLS1_2_VERSION 0xFEFD 19*4724848cSchristos # define DTLS_MIN_VERSION DTLS1_VERSION 20*4724848cSchristos # define DTLS_MAX_VERSION DTLS1_2_VERSION 21*4724848cSchristos # define DTLS1_VERSION_MAJOR 0xFE 22*4724848cSchristos 23*4724848cSchristos # define DTLS1_BAD_VER 0x0100 24*4724848cSchristos 25*4724848cSchristos /* Special value for method supporting multiple versions */ 26*4724848cSchristos # define DTLS_ANY_VERSION 0x1FFFF 27*4724848cSchristos 28*4724848cSchristos /* lengths of messages */ 29*4724848cSchristos /* 30*4724848cSchristos * Actually the max cookie length in DTLS is 255. But we can't change this now 31*4724848cSchristos * due to compatibility concerns. 32*4724848cSchristos */ 33*4724848cSchristos # define DTLS1_COOKIE_LENGTH 256 34*4724848cSchristos 35*4724848cSchristos # define DTLS1_RT_HEADER_LENGTH 13 36*4724848cSchristos 37*4724848cSchristos # define DTLS1_HM_HEADER_LENGTH 12 38*4724848cSchristos 39*4724848cSchristos # define DTLS1_HM_BAD_FRAGMENT -2 40*4724848cSchristos # define DTLS1_HM_FRAGMENT_RETRY -3 41*4724848cSchristos 42*4724848cSchristos # define DTLS1_CCS_HEADER_LENGTH 1 43*4724848cSchristos 44*4724848cSchristos # define DTLS1_AL_HEADER_LENGTH 2 45*4724848cSchristos 46*4724848cSchristos /* Timeout multipliers */ 47*4724848cSchristos # define DTLS1_TMO_READ_COUNT 2 48*4724848cSchristos # define DTLS1_TMO_WRITE_COUNT 2 49*4724848cSchristos 50*4724848cSchristos # define DTLS1_TMO_ALERT_COUNT 12 51*4724848cSchristos 52*4724848cSchristos #ifdef __cplusplus 53*4724848cSchristos } 54*4724848cSchristos #endif 55*4724848cSchristos #endif 56