Added TSCH+RPL example, with support for link-layer security and Orchestra scheduling
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Simon Duquennoy
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5 changed files with 674 additions and 0 deletions
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examples/ipv6/rpl-tsch/node.c
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examples/ipv6/rpl-tsch/node.c
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/*
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* Copyright (c) 2015, 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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* A RPL+TSCH node able to act as either a simple node (6ln),
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* DAG Root (6dr) or DAG Root with security (6dr-sec)
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* Press use button at startup to configure.
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*
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* \author Simon Duquennoy <simonduq@sics.se>
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*/
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#include "contiki.h"
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#include "node-id.h"
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#include "net/rpl/rpl.h"
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#include "net/ipv6/uip-ds6-route.h"
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#include "net/mac/tsch/tsch.h"
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#if WITH_ORCHESTRA
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#include "orchestra.h"
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#endif /* WITH_ORCHESTRA */
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#define DEBUG DEBUG_PRINT
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#include "net/ip/uip-debug.h"
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#define CONFIG_VIA_BUTTON PLATFORM_HAS_BUTTON
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#if CONFIG_VIA_BUTTON
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#include "button-sensor.h"
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#endif /* CONFIG_VIA_BUTTON */
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/*---------------------------------------------------------------------------*/
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PROCESS(node_process, "RPL Node");
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#if CONFIG_VIA_BUTTON
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AUTOSTART_PROCESSES(&node_process, &sensors_process);
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#else /* CONFIG_VIA_BUTTON */
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AUTOSTART_PROCESSES(&node_process);
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#endif /* CONFIG_VIA_BUTTON */
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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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static void
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net_init(uip_ipaddr_t *br_prefix)
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{
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uip_ipaddr_t global_ipaddr;
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if(br_prefix) { /* We are RPL root. Will be set automatically
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as TSCH pan coordinator via the tsch-rpl module */
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memcpy(&global_ipaddr, br_prefix, 16);
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uip_ds6_set_addr_iid(&global_ipaddr, &uip_lladdr);
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uip_ds6_addr_add(&global_ipaddr, 0, ADDR_AUTOCONF);
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rpl_set_root(RPL_DEFAULT_INSTANCE, &global_ipaddr);
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rpl_set_prefix(rpl_get_any_dag(), br_prefix, 64);
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rpl_repair_root(RPL_DEFAULT_INSTANCE);
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}
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NETSTACK_MAC.on();
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}
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(node_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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/* 3 possible roles:
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* - role_6ln: simple node, will join any network, secured or not
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* - role_6dr: DAG root, will advertise (unsecured) beacons
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* - role_6dr_sec: DAG root, will advertise secured beacons
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* */
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static int is_coordinator = 0;
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static enum { role_6ln, role_6dr, role_6dr_sec } node_role;
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node_role = role_6ln;
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/* Set node with ID == 1 as coordinator, convenient in Cooja. */
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if(node_id == 1) {
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if(LLSEC802154_CONF_SECURITY_LEVEL) {
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node_role = role_6dr_sec;
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} else {
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node_role = role_6dr;
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}
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} else {
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node_role = role_6ln;
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}
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#if CONFIG_VIA_BUTTON
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{
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#define CONFIG_WAIT_TIME 5
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SENSORS_ACTIVATE(button_sensor);
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etimer_set(&et, CLOCK_SECOND * CONFIG_WAIT_TIME);
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while(!etimer_expired(&et)) {
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printf("Init: current role: %s. Will start in %u seconds. Press user button to toggle mode.\n",
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node_role == role_6ln ? "6ln" : (node_role == role_6dr) ? "6dr" : "6dr-sec",
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CONFIG_WAIT_TIME);
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PROCESS_WAIT_EVENT_UNTIL(((ev == sensors_event) &&
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(data == &button_sensor) && button_sensor.value(0) > 0)
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|| etimer_expired(&et));
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if(ev == sensors_event && data == &button_sensor && button_sensor.value(0) > 0) {
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node_role = (node_role + 1) % 3;
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if(LLSEC802154_CONF_SECURITY_LEVEL == 0 && node_role == role_6dr_sec) {
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node_role = (node_role + 1) % 3;
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}
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etimer_restart(&et);
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}
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}
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}
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#endif /* CONFIG_VIA_BUTTON */
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printf("Init: node starting with role %s\n",
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node_role == role_6ln ? "6ln" : (node_role == role_6dr) ? "6dr" : "6dr-sec");
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tsch_set_pan_secured(LLSEC802154_CONF_SECURITY_LEVEL && (node_role == role_6dr_sec));
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is_coordinator = node_role > role_6ln;
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if(is_coordinator) {
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uip_ipaddr_t prefix;
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uip_ip6addr(&prefix, 0xaaaa, 0, 0, 0, 0, 0, 0, 0);
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net_init(&prefix);
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} else {
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net_init(NULL);
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}
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#if WITH_ORCHESTRA
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orchestra_init();
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#endif /* WITH_ORCHESTRA */
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/* Print out routing tables every minute */
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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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