/*
* Copyright (c) 2015, SICS Swedish ICT.
* All rights reserved.
*
* 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.
*
*/
/**
* \file
* A RPL+TSCH node able to act as either a simple node (6ln),
* DAG Root (6dr) or DAG Root with security (6dr-sec)
* Press use button at startup to configure.
*
* \author Simon Duquennoy <simonduq@sics.se>
*/
#include "contiki.h"
#include "node-id.h"
#include "net/rpl/rpl.h"
#include "net/ipv6/uip-ds6-route.h"
#include "net/mac/tsch/tsch.h"
#include "net/rpl/rpl-private.h"
#if WITH_ORCHESTRA
#include "orchestra.h"
#endif /* WITH_ORCHESTRA */
#define DEBUG DEBUG_PRINT
#include "net/ip/uip-debug.h"
#define CONFIG_VIA_BUTTON PLATFORM_HAS_BUTTON
#if CONFIG_VIA_BUTTON
#include "button-sensor.h"
#endif /* CONFIG_VIA_BUTTON */
/*---------------------------------------------------------------------------*/
PROCESS(node_process, "RPL Node");
#if CONFIG_VIA_BUTTON
AUTOSTART_PROCESSES(&node_process, &sensors_process);
#else /* CONFIG_VIA_BUTTON */
AUTOSTART_PROCESSES(&node_process);
#endif /* CONFIG_VIA_BUTTON */
/*---------------------------------------------------------------------------*/
static void
print_network_status(void)
{
int i;
uint8_t state;
uip_ds6_defrt_t *default_route;
#if RPL_WITH_STORING
uip_ds6_route_t *route;
#endif /* RPL_WITH_STORING */
#if RPL_WITH_NON_STORING
rpl_ns_node_t *link;
#endif /* RPL_WITH_NON_STORING */
PRINTF("--- Network status ---\n");
/* Our IPv6 addresses */
PRINTF("- Server IPv6 addresses:\n");
for(i = 0; i < UIP_DS6_ADDR_NB; i++) {
state = uip_ds6_if.addr_list[i].state;
if(uip_ds6_if.addr_list[i].isused &&
(state == ADDR_TENTATIVE || state == ADDR_PREFERRED)) {
PRINTF("-- ");
PRINT6ADDR(&uip_ds6_if.addr_list[i].ipaddr);
PRINTF("\n");
}
}
/* Our default route */
PRINTF("- Default route:\n");
default_route = uip_ds6_defrt_lookup(uip_ds6_defrt_choose());
if(default_route != NULL) {
PRINTF("-- ");
PRINT6ADDR(&default_route->ipaddr);
PRINTF(" (lifetime: %lu seconds)\n", (unsigned long)default_route->lifetime.interval);
} else {
PRINTF("-- None\n");
}
#if RPL_WITH_STORING
/* Our routing entries */
PRINTF("- Routing entries (%u in total):\n", uip_ds6_route_num_routes());
route = uip_ds6_route_head();
while(route != NULL) {
PRINTF("-- ");
PRINT6ADDR(&route->ipaddr);
PRINTF(" via ");
PRINT6ADDR(uip_ds6_route_nexthop(route));
PRINTF(" (lifetime: %lu seconds)\n", (unsigned long)route->state.lifetime);
route = uip_ds6_route_next(route);
}
#endif
#if RPL_WITH_NON_STORING
/* Our routing links */
PRINTF("- Routing links (%u in total):\n", rpl_ns_num_nodes());
link = rpl_ns_node_head();
while(link != NULL) {
if(link->parent != NULL) {
uip_ipaddr_t child_ipaddr;
uip_ipaddr_t parent_ipaddr;
rpl_ns_get_node_global_addr(&child_ipaddr, link);
rpl_ns_get_node_global_addr(&parent_ipaddr, link->parent);
PRINTF("-- ");
PRINT6ADDR(&child_ipaddr);
PRINTF(" to ");
PRINT6ADDR(&parent_ipaddr);
PRINTF(" (lifetime: %lu seconds)\n", (unsigned long)link->lifetime);
}
link = rpl_ns_node_next(link);
}
#endif
PRINTF("----------------------\n");
}
/*---------------------------------------------------------------------------*/
static void
net_init(uip_ipaddr_t *br_prefix)
{
uip_ipaddr_t global_ipaddr;
if(br_prefix) { /* We are RPL root. Will be set automatically
as TSCH pan coordinator via the tsch-rpl module */
memcpy(&global_ipaddr, br_prefix, 16);
uip_ds6_set_addr_iid(&global_ipaddr, &uip_lladdr);
uip_ds6_addr_add(&global_ipaddr, 0, ADDR_AUTOCONF);
rpl_set_root(RPL_DEFAULT_INSTANCE, &global_ipaddr);
rpl_set_prefix(rpl_get_any_dag(), br_prefix, 64);
rpl_repair_root(RPL_DEFAULT_INSTANCE);
}
NETSTACK_MAC.on();
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(node_process, ev, data)
{
static struct etimer et;
PROCESS_BEGIN();
/* 3 possible roles:
* - role_6ln: simple node, will join any network, secured or not
* - role_6dr: DAG root, will advertise (unsecured) beacons
* - role_6dr_sec: DAG root, will advertise secured beacons
* */
static int is_coordinator = 0;
static enum { role_6ln, role_6dr, role_6dr_sec } node_role;
node_role = role_6ln;
int coordinator_candidate = 0;
#ifdef CONTIKI_TARGET_Z1
/* Set node with MAC address c1:0c:00:00:00:00:01 as coordinator,
* convenient in cooja for regression tests using z1 nodes
* */
extern unsigned char node_mac[8];
unsigned char coordinator_mac[8] = { 0xc1, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 };
coordinator_candidate = (memcmp(node_mac, coordinator_mac, 8) == 0);
#elif CONTIKI_TARGET_COOJA
coordinator_candidate = (node_id == 1);
#endif
if(coordinator_candidate) {
if(LLSEC802154_ENABLED) {
node_role = role_6dr_sec;
} else {
node_role = role_6dr;
}
} else {
node_role = role_6ln;
}
#if CONFIG_VIA_BUTTON
{
#define CONFIG_WAIT_TIME 5
SENSORS_ACTIVATE(button_sensor);
etimer_set(&et, CLOCK_SECOND * CONFIG_WAIT_TIME);
while(!etimer_expired(&et)) {
printf("Init: current role: %s. Will start in %u seconds. Press user button to toggle mode.\n",
node_role == role_6ln ? "6ln" : (node_role == role_6dr) ? "6dr" : "6dr-sec",
CONFIG_WAIT_TIME);
PROCESS_WAIT_EVENT_UNTIL(((ev == sensors_event) &&
(data == &button_sensor) && button_sensor.value(0) > 0)
|| etimer_expired(&et));
if(ev == sensors_event && data == &button_sensor && button_sensor.value(0) > 0) {
node_role = (node_role + 1) % 3;
if(LLSEC802154_ENABLED == 0 && node_role == role_6dr_sec) {
node_role = (node_role + 1) % 3;
}
etimer_restart(&et);
}
}
}
#endif /* CONFIG_VIA_BUTTON */
printf("Init: node starting with role %s\n",
node_role == role_6ln ? "6ln" : (node_role == role_6dr) ? "6dr" : "6dr-sec");
tsch_set_pan_secured(LLSEC802154_ENABLED && (node_role == role_6dr_sec));
is_coordinator = node_role > role_6ln;
if(is_coordinator) {
uip_ipaddr_t prefix;
uip_ip6addr(&prefix, UIP_DS6_DEFAULT_PREFIX, 0, 0, 0, 0, 0, 0, 0);
net_init(&prefix);
} else {
net_init(NULL);
}
#if WITH_ORCHESTRA
orchestra_init();
#endif /* WITH_ORCHESTRA */
/* Print out routing tables every minute */
etimer_set(&et, CLOCK_SECOND * 60);
while(1) {
print_network_status();
PROCESS_YIELD_UNTIL(etimer_expired(&et));
etimer_reset(&et);
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/