mirror of
https://github.com/oliverschmidt/contiki.git
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132 lines
4.2 KiB
C
132 lines
4.2 KiB
C
/*
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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 "contiki-lib.h"
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#include "contiki-net.h"
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#include <string.h>
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#include <stdio.h>
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#include "dev/button-sensor.h"
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#include "debug.h"
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#define DEBUG DEBUG_PRINT
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#include "net/uip-debug.h"
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#define PING6_NB 5
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#define PING6_DATALEN 16
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#define UIP_IP_BUF ((struct uip_ip_hdr *)&uip_buf[UIP_LLH_LEN])
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#define UIP_ICMP_BUF ((struct uip_icmp_hdr *)&uip_buf[uip_l2_l3_hdr_len])
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static struct etimer ping6_periodic_timer;
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static uint8_t count = 0;
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static uip_ipaddr_t dest_addr;
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PROCESS(ping6_process, "PING6 process");
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/*---------------------------------------------------------------------------*/
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static void
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ping6handler()
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{
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if(count < PING6_NB) {
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UIP_IP_BUF->vtc = 0x60;
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UIP_IP_BUF->tcflow = 1;
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UIP_IP_BUF->flow = 0;
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UIP_IP_BUF->proto = UIP_PROTO_ICMP6;
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UIP_IP_BUF->ttl = uip_ds6_if.cur_hop_limit;
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uip_ipaddr_copy(&UIP_IP_BUF->destipaddr, &dest_addr);
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uip_ds6_select_src(&UIP_IP_BUF->srcipaddr, &UIP_IP_BUF->destipaddr);
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UIP_ICMP_BUF->type = ICMP6_ECHO_REQUEST;
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UIP_ICMP_BUF->icode = 0;
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/* set identifier and sequence number to 0 */
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memset((uint8_t *)UIP_ICMP_BUF + UIP_ICMPH_LEN, 0, 4);
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/* put one byte of data */
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memset((uint8_t *)UIP_ICMP_BUF + UIP_ICMPH_LEN + UIP_ICMP6_ECHO_REQUEST_LEN,
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count, PING6_DATALEN);
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uip_len = UIP_ICMPH_LEN + UIP_ICMP6_ECHO_REQUEST_LEN + UIP_IPH_LEN
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+ PING6_DATALEN;
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UIP_IP_BUF->len[0] = (uint8_t)((uip_len - 40) >> 8);
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UIP_IP_BUF->len[1] = (uint8_t)((uip_len - 40) & 0x00FF);
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UIP_ICMP_BUF->icmpchksum = 0;
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UIP_ICMP_BUF->icmpchksum = ~uip_icmp6chksum();
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PRINTF("Echo Request to ");
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PRINT6ADDR(&UIP_IP_BUF->destipaddr);
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PRINTF(" from ");
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PRINT6ADDR(&UIP_IP_BUF->srcipaddr);
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PRINTF("\n");
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UIP_STAT(++uip_stat.icmp.sent);
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tcpip_ipv6_output();
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count++;
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etimer_set(&ping6_periodic_timer, 3 * CLOCK_SECOND);
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} else {
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count = 0;
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}
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}
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/*---------------------------------------------------------------------------*/
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PROCESS_THREAD(ping6_process, ev, data)
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{
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PROCESS_BEGIN();
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PRINTF("ping6 running.\n");
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PRINTF("Button 1: 5 pings 16 byte payload.\n");
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uip_ip6addr(&dest_addr, 0xaaaa, 0, 0, 0, 0x0215, 0x2000, 0x0002, 0x2145);
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count = 0;
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icmp6_new(NULL);
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while(1) {
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PROCESS_YIELD();
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#if BUTTON_SENSOR_ON
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if(ev == sensors_event && data == &button_sensor && count == 0) {
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ping6handler();
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}
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#endif
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if(ev == PROCESS_EVENT_TIMER && etimer_expired(&ping6_periodic_timer)) {
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ping6handler();
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}
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if(ev == tcpip_icmp6_event && *(uint8_t *)data == ICMP6_ECHO_REPLY) {
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PRINTF("Echo Reply\n");
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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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