nes-proj/core/net/ipv6/multicast/smrf.h

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/*
* Copyright (c) 2011, Loughborough University - Computer Science
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*/
/**
* \addtogroup uip6-multicast
* @{
*/
/**
* \defgroup smrf-multicast 'Stateless Multicast RPL Forwarding' (SMRF)
*
* SMRF will only work in RPL networks in MOP 3 "Storing with Multicast"
* @{
*/
/**
* \file
* Header file for the SMRF forwarding engine
*
* \author
* George Oikonomou - <oikonomou@users.sourceforge.net>
*/
#ifndef SMRF_H_
#define SMRF_H_
#include "contiki-conf.h"
#include <stdint.h>
/*---------------------------------------------------------------------------*/
/* Configuration */
/*---------------------------------------------------------------------------*/
/* Fmin */
#ifdef SMRF_CONF_MIN_FWD_DELAY
#define SMRF_MIN_FWD_DELAY SMRF_CONF_MIN_FWD_DELAY
#else
#define SMRF_MIN_FWD_DELAY 4
#endif
/* Max Spread */
#ifdef SMRF_CONF_MAX_SPREAD
#define SMRF_MAX_SPREAD SMRF_CONF_MAX_SPREAD
#else
#define SMRF_MAX_SPREAD 4
#endif
/*---------------------------------------------------------------------------*/
/* Stats datatype */
/*---------------------------------------------------------------------------*/
struct smrf_stats {
uint16_t mcast_in_unique;
uint16_t mcast_in_all; /* At layer 3 */
uint16_t mcast_in_ours; /* Unique and we are a group member */
uint16_t mcast_fwd; /* Forwarded by us but we are not the seed */
uint16_t mcast_out; /* We are the seed */
uint16_t mcast_bad;
uint16_t mcast_dropped;
};
/*---------------------------------------------------------------------------*/
#endif /* SMRF_H_ */
/*---------------------------------------------------------------------------*/
/** @} */
/** @} */