179 lines
5.3 KiB
C
179 lines
5.3 KiB
C
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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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* border-router
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* \author
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* Niclas Finne <nfi@sics.se>
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* Joakim Eriksson <joakime@sics.se>
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* Nicolas Tsiftes <nvt@sics.se>
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*/
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#include "contiki.h"
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#include "contiki-lib.h"
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#include "contiki-net.h"
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#include "net/ip/uip.h"
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#include "net/ipv6/uip-ds6.h"
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#include "net/rpl/rpl.h"
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#include "simple-udp.h"
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#include "net/mac/tsch/tsch.h"
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#include "net/mac/tsch/tsch-schedule.h"
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#include "rich.h"
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#include "net/netstack.h"
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#include "dev/slip.h"
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#include "rich.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#define DEBUG DEBUG_NONE
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#include "net/ip/uip-debug.h"
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static uip_ipaddr_t prefix;
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static uint8_t prefix_set;
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PROCESS(border_router_process, "Border router process");
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AUTOSTART_PROCESSES(&border_router_process);
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/*---------------------------------------------------------------------------*/
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static void
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print_network_status(void)
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{
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int i;
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uint8_t state;
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uip_ds6_defrt_t *default_route;
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uip_ds6_route_t *route;
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PRINTA("--- Network status ---\n");
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/* Our IPv6 addresses */
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PRINTA("- Server IPv6 addresses:\n");
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for(i = 0; i < UIP_DS6_ADDR_NB; i++) {
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state = uip_ds6_if.addr_list[i].state;
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if(uip_ds6_if.addr_list[i].isused &&
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(state == ADDR_TENTATIVE || state == ADDR_PREFERRED)) {
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PRINTA("-- ");
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uip_debug_ipaddr_print(&uip_ds6_if.addr_list[i].ipaddr);
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PRINTA("\n");
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}
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}
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/* Our default route */
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PRINTA("- Default route:\n");
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default_route = uip_ds6_defrt_lookup(uip_ds6_defrt_choose());
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if(default_route != NULL) {
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PRINTA("-- ");
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uip_debug_ipaddr_print(&default_route->ipaddr);;
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PRINTA(" (lifetime: %lu seconds)\n", (unsigned long)default_route->lifetime.interval);
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} else {
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PRINTA("-- None\n");
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}
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/* Our routing entries */
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PRINTA("- Routing entries (%u in total):\n", uip_ds6_route_num_routes());
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route = uip_ds6_route_head();
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while(route != NULL) {
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PRINTA("-- ");
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uip_debug_ipaddr_print(&route->ipaddr);
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PRINTA(" via ");
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uip_debug_ipaddr_print(uip_ds6_route_nexthop(route));
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PRINTA(" (lifetime: %lu seconds)\n", (unsigned long)route->state.lifetime);
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route = uip_ds6_route_next(route);
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}
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PRINTA("----------------------\n");
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}
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/*---------------------------------------------------------------------------*/
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void
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request_prefix(void)
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{
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/* mess up uip_buf with a dirty request... */
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uip_buf[0] = '?';
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uip_buf[1] = 'P';
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// uip_buf[2] = '\n';
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uip_len = 2;
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slip_send();
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uip_len = 0;
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}
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/*---------------------------------------------------------------------------*/
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void
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set_prefix_64(uip_ipaddr_t *prefix_64)
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{
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memcpy(&prefix, prefix_64, 16);
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prefix_set = 1;
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}
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(border_router_process, ev, data)
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{
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static struct etimer et;
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PROCESS_BEGIN();
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/* While waiting for the prefix to be sent through the SLIP connection, the future
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* border router can join an existing DAG as a parent or child, or acquire a default
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* router that will later take precedence over the SLIP fallback interface.
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* Prevent that by turning the radio off until we are initialized as a DAG root.
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*/
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prefix_set = 0;
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PROCESS_PAUSE();
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PRINTF("RPL-Border router started\n");
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/* Request prefix until it has been received */
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while(!prefix_set) {
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etimer_set(&et, CLOCK_SECOND);
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request_prefix();
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PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
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PRINTF("Waiting for prefix\n");
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}
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PRINTF("Obtained prefix: ");
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uip_debug_ipaddr_print(&prefix);
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PRINTF("\n");
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rich_init(&prefix);
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etimer_set(&et, CLOCK_SECOND * 60);
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while(1) {
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print_network_status();
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PROCESS_YIELD_UNTIL(etimer_expired(&et));
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etimer_reset(&et);
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}
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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