137 lines
4.5 KiB
C
137 lines
4.5 KiB
C
/*
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* Copyright (c) 2011, Swedish Institute of Computer Science.
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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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* This file is part of the Contiki operating system.
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*
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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 "sys/node-id.h"
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#include "simple-udp.h"
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#include "servreg-hack.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 (60 * 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_sender_process, "Unicast sender example process");
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AUTOSTART_PROCESSES(&unicast_sender_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 on port %d from port %d with length %d\n",
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receiver_port, sender_port, datalen);
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}
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/*---------------------------------------------------------------------------*/
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static void
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set_global_address(void)
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{
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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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}
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(unicast_sender_process, ev, data)
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{
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static struct etimer periodic_timer;
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static struct etimer send_timer;
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uip_ipaddr_t *addr;
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PROCESS_BEGIN();
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servreg_hack_init();
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set_global_address();
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simple_udp_register(&unicast_connection, UDP_PORT,
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NULL, UDP_PORT, receiver);
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etimer_set(&periodic_timer, SEND_INTERVAL);
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while(1) {
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PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&periodic_timer));
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etimer_reset(&periodic_timer);
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etimer_set(&send_timer, SEND_TIME);
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PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&send_timer));
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addr = servreg_hack_lookup(SERVICE_ID);
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if(addr != NULL) {
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static unsigned int message_number;
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char buf[20];
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printf("Sending unicast to ");
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uip_debug_ipaddr_print(addr);
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printf("\n");
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sprintf(buf, "Message %d", message_number);
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message_number++;
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simple_udp_sendto(&unicast_connection, buf, strlen(buf) + 1, addr);
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} else {
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printf("Service %d not found\n", SERVICE_ID);
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}
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}
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PROCESS_END();
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}
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/*---------------------------------------------------------------------------*/
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