135 lines
4.4 KiB
C
135 lines
4.4 KiB
C
/*
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* Copyright (c) 2012, Thingsquare, www.thingsquare.com.
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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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#include "contiki.h"
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#include "lib/random.h"
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#include "sys/ctimer.h"
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#include "sys/etimer.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/ip/uip-debug.h"
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#include "simple-udp.h"
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#include "net/rpl/rpl.h"
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#include <stdio.h>
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#include <string.h>
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#define UDP_PORT 1234
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#define SERVICE_ID 190
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#define SEND_INTERVAL (10 * CLOCK_SECOND)
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#define SEND_TIME (random_rand() % (SEND_INTERVAL))
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static struct simple_udp_connection unicast_connection;
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/*---------------------------------------------------------------------------*/
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PROCESS(unicast_receiver_process, "Unicast receiver example process");
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AUTOSTART_PROCESSES(&unicast_receiver_process);
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/*---------------------------------------------------------------------------*/
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static void
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receiver(struct simple_udp_connection *c,
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const uip_ipaddr_t *sender_addr,
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uint16_t sender_port,
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const uip_ipaddr_t *receiver_addr,
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uint16_t receiver_port,
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const uint8_t *data,
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uint16_t datalen)
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{
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printf("Data received from ");
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uip_debug_ipaddr_print(sender_addr);
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printf(" on port %d from port %d with length %d: '%s'\n",
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receiver_port, sender_port, datalen, data);
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}
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/*---------------------------------------------------------------------------*/
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static uip_ipaddr_t *
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set_global_address(void)
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{
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static uip_ipaddr_t ipaddr;
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int i;
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uint8_t state;
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uip_ip6addr(&ipaddr, UIP_DS6_DEFAULT_PREFIX, 0, 0, 0, 0, 0, 0, 0);
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uip_ds6_set_addr_iid(&ipaddr, &uip_lladdr);
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uip_ds6_addr_add(&ipaddr, 0, ADDR_AUTOCONF);
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printf("IPv6 addresses: ");
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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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uip_debug_ipaddr_print(&uip_ds6_if.addr_list[i].ipaddr);
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printf("\n");
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}
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}
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return &ipaddr;
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}
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/*---------------------------------------------------------------------------*/
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static void
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create_rpl_dag(uip_ipaddr_t *ipaddr)
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{
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struct uip_ds6_addr *root_if;
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root_if = uip_ds6_addr_lookup(ipaddr);
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if(root_if != NULL) {
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rpl_dag_t *dag;
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uip_ipaddr_t prefix;
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rpl_set_root(RPL_DEFAULT_INSTANCE, ipaddr);
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dag = rpl_get_any_dag();
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uip_ip6addr(&prefix, UIP_DS6_DEFAULT_PREFIX, 0, 0, 0, 0, 0, 0, 0);
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rpl_set_prefix(dag, &prefix, 64);
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PRINTF("created a new RPL dag\n");
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} else {
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PRINTF("failed to create a new RPL DAG\n");
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}
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}
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(unicast_receiver_process, ev, data)
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{
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uip_ipaddr_t *ipaddr;
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PROCESS_BEGIN();
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ipaddr = set_global_address();
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create_rpl_dag(ipaddr);
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simple_udp_register(&unicast_connection, UDP_PORT,
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NULL, UDP_PORT, receiver);
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while(1) {
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PROCESS_WAIT_EVENT();
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}
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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