94 lines
3.0 KiB
C
94 lines
3.0 KiB
C
/*
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* Copyright (c) 2007, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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*/
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/**
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* \file
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* Header file for the Rime mesh routing protocol
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* \author
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* Adam Dunkels <adam@sics.se>
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*/
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/**
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* \addtogroup rime
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* @{
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*/
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/**
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* \defgroup routediscovery Rime route discovery protocol
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* @{
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*
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* The route-discovery module does route discovery for Rime.
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*
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* \section route-discovery-channels Channels
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*
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* The ibc module uses 2 channels; one for the flooded route request
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* packets and one for the unicast route replies.
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*
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*/
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#ifndef ROUTE_DISCOVERY_H_
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#define ROUTE_DISCOVERY_H_
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#include "net/rime/unicast.h"
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#include "net/rime/netflood.h"
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#include "sys/ctimer.h"
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struct route_discovery_conn;
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struct route_discovery_callbacks {
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void (* new_route)(struct route_discovery_conn *c, const linkaddr_t *to);
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void (* timedout)(struct route_discovery_conn *c);
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};
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#define ROUTE_DISCOVERY_ENTRIES 8
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struct route_discovery_conn {
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struct netflood_conn rreqconn;
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struct unicast_conn rrepconn;
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struct ctimer t;
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linkaddr_t last_rreq_originator;
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uint16_t last_rreq_id;
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uint16_t rreq_id;
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const struct route_discovery_callbacks *cb;
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};
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void route_discovery_open(struct route_discovery_conn *c, clock_time_t time,
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uint16_t channels,
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const struct route_discovery_callbacks *callbacks);
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int route_discovery_discover(struct route_discovery_conn *c, const linkaddr_t *dest,
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clock_time_t timeout);
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void route_discovery_close(struct route_discovery_conn *c);
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#endif /* ROUTE_DISCOVERY_H_ */
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/** @} */
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/** @} */
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