98 lines
3.2 KiB
C
98 lines
3.2 KiB
C
|
/*
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "contiki.h"
|
||
|
|
#include "net/rpl/rpl.h"
|
||
|
|
#include "tools/rpl-tools.h"
|
||
|
|
|
||
|
|
#define DEBUG DEBUG_PRINT
|
||
|
|
#include "net/ip/uip-debug.h"
|
||
|
|
|
||
|
|
static uip_ipaddr_t prefix;
|
||
|
|
static uint8_t prefix_set;
|
||
|
|
|
||
|
|
PROCESS(border_router_process, "Border router process");
|
||
|
|
|
||
|
|
AUTOSTART_PROCESSES(&border_router_process);
|
||
|
|
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
void
|
||
|
|
request_prefix(void)
|
||
|
|
{
|
||
|
|
/* mess up uip_buf with a dirty request... */
|
||
|
|
uip_buf[0] = '?';
|
||
|
|
uip_buf[1] = 'P';
|
||
|
|
/* uip_buf[2] = '\n'; */
|
||
|
|
uip_len = 2;
|
||
|
|
slip_send();
|
||
|
|
uip_len = 0;
|
||
|
|
}
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
void
|
||
|
|
set_prefix_64(uip_ipaddr_t *prefix_64)
|
||
|
|
{
|
||
|
|
memcpy(&prefix, prefix_64, 16);
|
||
|
|
prefix_set = 1;
|
||
|
|
}
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
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;
|
||
|
|
|
||
|
|
PROCESS_PAUSE();
|
||
|
|
|
||
|
|
PRINTF("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));
|
||
|
|
PRINTF("Waiting for prefix\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
PRINTF("Obtained prefix: ");
|
||
|
|
uip_debug_ipaddr_print(&prefix);
|
||
|
|
PRINTF("\n");
|
||
|
|
|
||
|
|
rpl_tools_init(&prefix);
|
||
|
|
|
||
|
|
PROCESS_END();
|
||
|
|
}
|
||
|
|
/*---------------------------------------------------------------------------*/
|