config.h
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/*
* Copyright (C) 2015-2017 Simon Brummer
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @defgroup net_gnrc_tcp TCP
* @ingroup net_gnrc
* @brief RIOT's TCP implementation for the GNRC network stack.
*
* @{
*
* @file
* @brief GNRC TCP configuration
*
* @author Simon Brummer <simon.brummer@posteo.de>
*/
#ifndef NET_GNRC_TCP_CONFIG_H
#define NET_GNRC_TCP_CONFIG_H
#include "timex.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Timeout duration for user calls. Default is 2 minutes.
*/
#ifndef GNRC_TCP_CONNECTION_TIMEOUT_DURATION
#define GNRC_TCP_CONNECTION_TIMEOUT_DURATION (120U * US_PER_SEC)
#endif
/**
* @brief Maximum segment lifetime (MSL). Default is 30 seconds.
*/
#ifndef GNRC_TCP_MSL
#define GNRC_TCP_MSL (30U * US_PER_SEC)
#endif
/**
* @brief Maximum Segement Size (MSS).
*/
#ifndef GNRC_TCP_MSS
#ifdef MODULE_GNRC_IPV6
#define GNRC_TCP_MSS (1220U) /**< If IPv6 is used. Get MSS = 1280 - IPv6 Hdr - TCP Hdr = 1220 */
#else
#define GNRC_TCP_MSS (576U) /**< Default MSS */
#endif
#endif
/**
* @brief MSS Multiplicator = Number of MSS sized packets stored in receive buffer
*/
#ifndef GNRC_TCP_MSS_MULTIPLICATOR
#define GNRC_TCP_MSS_MULTIPLICATOR (1U)
#endif
/**
* @brief Default receive window size
*/
#ifndef GNRC_TCP_DEFAULT_WINDOW
#define GNRC_TCP_DEFAULT_WINDOW (GNRC_TCP_MSS * GNRC_TCP_MSS_MULTIPLICATOR)
#endif
/**
* @brief Number of preallocated receive buffers
*/
#ifndef GNRC_TCP_RCV_BUFFERS
#define GNRC_TCP_RCV_BUFFERS (1U)
#endif
/**
* @brief Default receive buffer size
*/
#ifndef GNRC_TCP_RCV_BUF_SIZE
#define GNRC_TCP_RCV_BUF_SIZE (GNRC_TCP_DEFAULT_WINDOW)
#endif
/**
* @brief Lower bound for RTO = 1 sec (see RFC 6298)
*/
#ifndef GNRC_TCP_RTO_LOWER_BOUND
#define GNRC_TCP_RTO_LOWER_BOUND (1U * US_PER_SEC)
#endif
/**
* @brief Upper bound for RTO = 60 sec (see RFC 6298)
*/
#ifndef GNRC_TCP_RTO_UPPER_BOUND
#define GNRC_TCP_RTO_UPPER_BOUND (60U * US_PER_SEC)
#endif
/**
* @brief Assumes clock granularity for TCP of 10 ms (see RFC 6298)
*/
#ifndef GNRC_TCP_RTO_GRANULARITY
#define GNRC_TCP_RTO_GRANULARITY (10U * MS_PER_SEC)
#endif
/**
* @brief Alpha value for RTO calculation, default is 1/8
*/
#ifndef GNRC_TCP_RTO_A_DIV
#define GNRC_TCP_RTO_A_DIV (8U)
#endif
/**
* @brief Beta value for RTO calculation, default is 1/4
*/
#ifndef GNRC_TCP_RTO_B_DIV
#define GNRC_TCP_RTO_B_DIV (4U)
#endif
/**
* @brief K value for RTO calculation, default is 4
*/
#ifndef GNRC_TCP_RTO_K
#define GNRC_TCP_RTO_K (4U)
#endif
/**
* @brief Lower bound for the duration between probes
*/
#ifndef GNRC_TCP_PROBE_LOWER_BOUND
#define GNRC_TCP_PROBE_LOWER_BOUND (1U * US_PER_SEC)
#endif
/**
* @brief Upper bound for the duration between probes
*/
#ifndef GNRC_TCP_PROBE_UPPER_BOUND
#define GNRC_TCP_PROBE_UPPER_BOUND (60U * US_PER_SEC)
#endif
#ifdef __cplusplus
}
#endif
#endif /* NET_GNRC_TCP_CONFIG_H */
/** @} */