osd-contiki/core/net/rpl/rpl-ns.h

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/*
* Copyright (c) 2016, Inria.
* 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.
*/
/**
* \file
* RPL non-storing mode specific functions. Includes support for
* source routing.
*
* \author Simon Duquennoy <simon.duquennoy@inria.fr>
*/
#ifndef RPL_NS_H
#define RPL_NS_H
#include "rpl-conf.h"
#ifdef RPL_NS_CONF_LINK_NUM
#define RPL_NS_LINK_NUM RPL_NS_CONF_LINK_NUM
#else /* RPL_NS_CONF_LINK_NUM */
#define RPL_NS_LINK_NUM 32
#endif /* RPL_NS_CONF_LINK_NUM */
typedef struct rpl_ns_node {
struct rpl_ns_node *next;
uint32_t lifetime;
rpl_dag_t *dag;
/* Store only IPv6 link identifiers as all nodes in the DAG share the same prefix */
unsigned char link_identifier[8];
struct rpl_ns_node *parent;
} rpl_ns_node_t;
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int rpl_ns_num_nodes(void);
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void rpl_ns_expire_parent(rpl_dag_t *dag, const uip_ipaddr_t *child, const uip_ipaddr_t *parent);
rpl_ns_node_t *rpl_ns_update_node(rpl_dag_t *dag, const uip_ipaddr_t *child, const uip_ipaddr_t *parent, uint32_t lifetime);
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void rpl_ns_init(void);
rpl_ns_node_t *rpl_ns_node_head(void);
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rpl_ns_node_t *rpl_ns_node_next(rpl_ns_node_t *item);
rpl_ns_node_t *rpl_ns_get_node(const rpl_dag_t *dag, const uip_ipaddr_t *addr);
int rpl_ns_is_node_reachable(const rpl_dag_t *dag, const uip_ipaddr_t *addr);
void rpl_ns_get_node_global_addr(uip_ipaddr_t *addr, rpl_ns_node_t *node);
void rpl_ns_periodic();
#endif /* RPL_NS_H */