nes-proj/examples/rpl-border-router/embedded/border-router-embedded.c

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/*
* 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
* border-router
* \author
* Niclas Finne <nfi@sics.se>
* Joakim Eriksson <joakime@sics.se>
* Nicolas Tsiftes <nvt@sics.se>
*/
#include "contiki.h"
#include "rpl.h"
#include "dev/button-sensor.h"
#include "dev/slip.h"
#include "border-router-common.h"
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/*---------------------------------------------------------------------------*/
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/* Log configuration */
#include "sys/log.h"
#define LOG_MODULE "BR"
#define LOG_LEVEL LOG_LEVEL_INFO
void request_prefix(void);
/*---------------------------------------------------------------------------*/
PROCESS(border_router_process, "Border router process");
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(border_router_process, ev, data)
{
static struct etimer et;
PROCESS_BEGIN();
/* While waiting for the prefix to be sent through the SLIP connection, the future
* border router can join an existing DAG as a parent or child, or acquire a default
* router that will later take precedence over the SLIP fallback interface.
* Prevent that by turning the radio off until we are initialized as a DAG root.
*/
prefix_set = 0;
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NETSTACK_MAC.off();
PROCESS_PAUSE();
SENSORS_ACTIVATE(button_sensor);
LOG_INFO("RPL-Border router started\n");
/* Request prefix until it has been received */
while(!prefix_set) {
etimer_set(&et, CLOCK_SECOND);
request_prefix();
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
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LOG_INFO("Waiting for prefix\n");
}
NETSTACK_MAC.on();
print_local_addresses();
while(1) {
PROCESS_YIELD();
if(ev == sensors_event && data == &button_sensor) {
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LOG_INFO("Initiating global repair\n");
#if UIP_CONF_IPV6_RPL_LITE
rpl_global_repair();
#else
rpl_repair_root(RPL_DEFAULT_INSTANCE);
#endif
}
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/