jpayne@69: /*
jpayne@69:  * Copyright 2005-2018 The OpenSSL Project Authors. All Rights Reserved.
jpayne@69:  *
jpayne@69:  * Licensed under the OpenSSL license (the "License").  You may not use
jpayne@69:  * this file except in compliance with the License.  You can obtain a copy
jpayne@69:  * in the file LICENSE in the source distribution or at
jpayne@69:  * https://www.openssl.org/source/license.html
jpayne@69:  */
jpayne@69: 
jpayne@69: #ifndef HEADER_DTLS1_H
jpayne@69: # define HEADER_DTLS1_H
jpayne@69: 
jpayne@69: #ifdef  __cplusplus
jpayne@69: extern "C" {
jpayne@69: #endif
jpayne@69: 
jpayne@69: # define DTLS1_VERSION                   0xFEFF
jpayne@69: # define DTLS1_2_VERSION                 0xFEFD
jpayne@69: # define DTLS_MIN_VERSION                DTLS1_VERSION
jpayne@69: # define DTLS_MAX_VERSION                DTLS1_2_VERSION
jpayne@69: # define DTLS1_VERSION_MAJOR             0xFE
jpayne@69: 
jpayne@69: # define DTLS1_BAD_VER                   0x0100
jpayne@69: 
jpayne@69: /* Special value for method supporting multiple versions */
jpayne@69: # define DTLS_ANY_VERSION                0x1FFFF
jpayne@69: 
jpayne@69: /* lengths of messages */
jpayne@69: /*
jpayne@69:  * Actually the max cookie length in DTLS is 255. But we can't change this now
jpayne@69:  * due to compatibility concerns.
jpayne@69:  */
jpayne@69: # define DTLS1_COOKIE_LENGTH                     256
jpayne@69: 
jpayne@69: # define DTLS1_RT_HEADER_LENGTH                  13
jpayne@69: 
jpayne@69: # define DTLS1_HM_HEADER_LENGTH                  12
jpayne@69: 
jpayne@69: # define DTLS1_HM_BAD_FRAGMENT                   -2
jpayne@69: # define DTLS1_HM_FRAGMENT_RETRY                 -3
jpayne@69: 
jpayne@69: # define DTLS1_CCS_HEADER_LENGTH                  1
jpayne@69: 
jpayne@69: # define DTLS1_AL_HEADER_LENGTH                   2
jpayne@69: 
jpayne@69: /* Timeout multipliers */
jpayne@69: # define DTLS1_TMO_READ_COUNT                      2
jpayne@69: # define DTLS1_TMO_WRITE_COUNT                     2
jpayne@69: 
jpayne@69: # define DTLS1_TMO_ALERT_COUNT                     12
jpayne@69: 
jpayne@69: #ifdef  __cplusplus
jpayne@69: }
jpayne@69: #endif
jpayne@69: #endif