111 lines
4.1 KiB
C
111 lines
4.1 KiB
C
/*
|
|
* 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 copyright holder 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 COPYRIGHT HOLDERS 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
|
|
* COPYRIGHT HOLDER 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.
|
|
*/
|
|
/**
|
|
* \addtogroup uip6-multicast
|
|
* @{
|
|
*/
|
|
/**
|
|
* \file
|
|
* Header file for multicast routing table manipulation
|
|
*
|
|
* \author
|
|
* George Oikonomou - <oikonomou@users.sourceforge.net>
|
|
*/
|
|
#ifndef UIP_MCAST6_ROUTE_H_
|
|
#define UIP_MCAST6_ROUTE_H_
|
|
|
|
#include "contiki.h"
|
|
#include "net/ip/uip.h"
|
|
|
|
#include <stdint.h>
|
|
/*---------------------------------------------------------------------------*/
|
|
/** \brief An entry in the multicast routing table */
|
|
typedef struct uip_mcast6_route {
|
|
struct uip_mcast6_route *next; /**< Routes are arranged in a linked list */
|
|
uip_ipaddr_t group; /**< The multicast group */
|
|
uint32_t lifetime; /**< Entry lifetime seconds */
|
|
void *dag; /**< Pointer to an rpl_dag_t struct */
|
|
} uip_mcast6_route_t;
|
|
/*---------------------------------------------------------------------------*/
|
|
/** \name Multicast Routing Table Manipulation */
|
|
/** @{ */
|
|
|
|
/**
|
|
* \brief Lookup a multicast route
|
|
* \param group A pointer to the multicast group to be searched for
|
|
* \return A pointer to the new routing entry, or NULL if the route could not
|
|
* be found
|
|
*/
|
|
uip_mcast6_route_t *uip_mcast6_route_lookup(uip_ipaddr_t *group);
|
|
|
|
/**
|
|
* \brief Add a multicast route
|
|
* \param group A pointer to the multicast group to be added
|
|
* \return A pointer to the new route, or NULL if the route could not be added
|
|
*/
|
|
uip_mcast6_route_t *uip_mcast6_route_add(uip_ipaddr_t *group);
|
|
|
|
/**
|
|
* \brief Remove a multicast route
|
|
* \param route A pointer to the route to be removed
|
|
*/
|
|
void uip_mcast6_route_rm(uip_mcast6_route_t *route);
|
|
|
|
/**
|
|
* \brief Retrieve the count of multicast routes
|
|
* \return The number of multicast routes
|
|
*/
|
|
int uip_mcast6_route_count(void);
|
|
|
|
/**
|
|
* \brief Retrieve a pointer to the start of the multicast routes list
|
|
* \return A pointer to the start of the multicast routes
|
|
*
|
|
* If the multicast routes list is empty, this function will return NULL
|
|
*/
|
|
uip_mcast6_route_t *uip_mcast6_route_list_head(void);
|
|
/*---------------------------------------------------------------------------*/
|
|
/**
|
|
* \brief Multicast routing table init routine
|
|
*
|
|
* Multicast routing tables are not necessarily required by all
|
|
* multicast engines. For instance, trickle multicast does not rely on
|
|
* the existence of a routing table. Therefore, this function here
|
|
* should be invoked by each engine's init routine only if the relevant
|
|
* functionality is required. This is also why this function should not
|
|
* get hooked into the uip-ds6 core.
|
|
*/
|
|
void uip_mcast6_route_init(void);
|
|
/** @} */
|
|
|
|
#endif /* UIP_MCAST6_ROUTE_H_ */
|
|
/** @} */
|