144 lines
5.0 KiB
C
144 lines
5.0 KiB
C
/*
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* Copyright (c) 2014, SICS Swedish ICT.
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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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*/
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/**
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* \file
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* Interaction between TSCH and RPL
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*
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* \author Simon Duquennoy <simonduq@sics.se>
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*/
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/**
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* \addtogroup tsch
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* @{
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*/
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#if UIP_CONF_IPV6_RPL
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#include "contiki.h"
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#if UIP_CONF_IPV6_RPL_LITE == 1
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#include "net/rpl-lite/rpl.h"
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#else /* UIP_CONF_IPV6_RPL_LITE == 1 */
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#include "net/rpl-classic/rpl.h"
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#include "net/rpl-classic/rpl-private.h"
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#endif /* UIP_CONF_IPV6_RPL_LITE == 1 */
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#include "net/mac/tsch/tsch.h"
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#include "net/mac/tsch/tsch-private.h"
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#include "net/mac/tsch/tsch-schedule.h"
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#include "net/mac/tsch/tsch-log.h"
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#include "net/mac/tsch/tsch-rpl.h"
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#include "tsch-rpl.h"
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/* Log configuration */
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#include "sys/log.h"
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#define LOG_MODULE "TSCH RPL"
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#define LOG_LEVEL LOG_LEVEL_MAC
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/*---------------------------------------------------------------------------*/
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/* To use, set #define TSCH_CALLBACK_KA_SENT tsch_rpl_callback_ka_sent */
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void
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tsch_rpl_callback_ka_sent(int status, int transmissions)
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{
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rpl_link_callback(packetbuf_addr(PACKETBUF_ADDR_RECEIVER), status, transmissions);
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}
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/*---------------------------------------------------------------------------*/
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/* To use, set #define TSCH_CALLBACK_JOINING_NETWORK tsch_rpl_callback_joining_network */
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void
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tsch_rpl_callback_joining_network(void)
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{
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}
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/*---------------------------------------------------------------------------*/
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/* Upon leaving a TSCH network, perform a local repair
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* (cleanup neighbor state, reset Trickle timer etc)
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* To use, set #define TSCH_CALLBACK_LEAVING_NETWORK tsch_rpl_callback_leaving_network */
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void
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tsch_rpl_callback_leaving_network(void)
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{
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rpl_dag_t *dag = rpl_get_any_dag();
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if(dag != NULL) {
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#if UIP_CONF_IPV6_RPL_LITE
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rpl_local_repair("TSCH leaving");
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#else
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rpl_local_repair(dag->instance);
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#endif
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}
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}
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/*---------------------------------------------------------------------------*/
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/* Set TSCH EB period based on current RPL DIO period.
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* To use, set #define RPL_CALLBACK_NEW_DIO_INTERVAL tsch_rpl_callback_new_dio_interval */
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void
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tsch_rpl_callback_new_dio_interval(clock_time_t dio_interval)
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{
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/* Transmit EBs only if we have a valid rank as per 6TiSCH minimal */
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rpl_dag_t *dag;
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rpl_rank_t root_rank;
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rpl_rank_t dag_rank;
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#if UIP_CONF_IPV6_RPL_LITE
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dag = &curr_instance.dag;
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root_rank = ROOT_RANK;
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dag_rank = DAG_RANK(dag->rank);
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#else
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rpl_instance_t *instance;
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dag = rpl_get_any_dag();
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instance = dag != NULL ? dag->instance : NULL;
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root_rank = ROOT_RANK(instance);
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dag_rank = DAG_RANK(dag->rank, instance);
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#endif
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if(dag != NULL && dag->rank != RPL_INFINITE_RANK) {
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/* If we are root set TSCH as coordinator */
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if(dag->rank == root_rank) {
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tsch_set_coordinator(1);
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}
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/* Set EB period */
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tsch_set_eb_period(dio_interval);
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/* Set join priority based on RPL rank */
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tsch_set_join_priority(dag_rank - 1);
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} else {
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tsch_set_eb_period(TSCH_EB_PERIOD);
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}
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}
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/*---------------------------------------------------------------------------*/
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/* Set TSCH time source based on current RPL preferred parent.
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* To use, set #define RPL_CALLBACK_PARENT_SWITCH tsch_rpl_callback_parent_switch */
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void
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tsch_rpl_callback_parent_switch(rpl_parent_t *old, rpl_parent_t *new)
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{
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/* Map the TSCH time source on the RPL preferred parent (but stick to the
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* current time source if there is no preferred aarent) */
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if(tsch_is_associated == 1 && new != NULL) {
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tsch_queue_update_time_source(
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(const linkaddr_t *)uip_ds6_nbr_lladdr_from_ipaddr(
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rpl_parent_get_ipaddr(new)));
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}
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}
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#endif /* UIP_CONF_IPV6_RPL */
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/** @} */
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