149 lines
5 KiB
C
149 lines
5 KiB
C
/*
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* Copyright (c) 2013, Matthias Kovatsch
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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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* \file
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* Erbium (Er) CoAP client example
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* \author
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* Matthias Kovatsch <kovatsch@inf.ethz.ch>
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "contiki.h"
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#include "contiki-net.h"
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#include "dev/button-sensor.h"
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#include "dev/leds.h"
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#if WITH_COAP == 3
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#include "er-coap-03-engine.h"
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#elif WITH_COAP == 6
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#include "er-coap-06-engine.h"
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#elif WITH_COAP == 7
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#include "er-coap-07-engine.h"
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#elif WITH_COAP == 12
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#include "er-coap-12-engine.h"
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#elif WITH_COAP == 13
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#include "er-coap-13-engine.h"
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#else
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#error "CoAP version defined by WITH_COAP not implemented"
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#endif
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#define DEBUG 0
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#if DEBUG
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#define PRINTF(...) printf(__VA_ARGS__)
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#define PRINT6ADDR(addr) PRINTF("[%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x]", ((uint8_t *)addr)[0], ((uint8_t *)addr)[1], ((uint8_t *)addr)[2], ((uint8_t *)addr)[3], ((uint8_t *)addr)[4], ((uint8_t *)addr)[5], ((uint8_t *)addr)[6], ((uint8_t *)addr)[7], ((uint8_t *)addr)[8], ((uint8_t *)addr)[9], ((uint8_t *)addr)[10], ((uint8_t *)addr)[11], ((uint8_t *)addr)[12], ((uint8_t *)addr)[13], ((uint8_t *)addr)[14], ((uint8_t *)addr)[15])
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#define PRINTLLADDR(lladdr) PRINTF("[%02x:%02x:%02x:%02x:%02x:%02x]",(lladdr)->addr[0], (lladdr)->addr[1], (lladdr)->addr[2], (lladdr)->addr[3],(lladdr)->addr[4], (lladdr)->addr[5])
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#else
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#define PRINTF(...)
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#define PRINT6ADDR(addr)
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#define PRINTLLADDR(addr)
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#endif
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/* TODO: This server address is hard-coded for Cooja. */
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#define SERVER_NODE(ipaddr) uip_ip6addr(ipaddr, 0xfe80, 0, 0, 0, 0x0221, 0x2eff, 0xff00, 0x270d) /* cooja2 */
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#define LOCAL_PORT UIP_HTONS(COAP_DEFAULT_PORT+1)
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#define REMOTE_PORT UIP_HTONS(COAP_DEFAULT_PORT)
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PROCESS(coap_client_example, "COAP Client Example");
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AUTOSTART_PROCESSES(&coap_client_example);
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uip_ipaddr_t server_ipaddr;
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/* Example URIs that can be queried. */
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#define NUMBER_OF_URLS 4
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/* leading and ending slashes only for demo purposes, get cropped automatically when setting the Uri-Path */
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char* service_urls[NUMBER_OF_URLS] = {".well-known/core", "/actuators/toggle", "battery/", "error/in//path"};
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/* This function is will be passed to COAP_BLOCKING_REQUEST() to handle responses. */
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void
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client_chunk_handler(void *response)
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{
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const uint8_t *chunk;
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int len = coap_get_payload(response, &chunk);
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printf("|%.*s", len, (char *)chunk);
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}
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PROCESS_THREAD(coap_client_example, ev, data)
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{
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PROCESS_BEGIN();
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leds_off(LEDS_RED);
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static coap_packet_t request[1]; /* This way the packet can be treated as pointer as usual. */
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SERVER_NODE(&server_ipaddr);
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/* receives all CoAP messages */
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coap_receiver_init();
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#if PLATFORM_HAS_BUTTON
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SENSORS_ACTIVATE(button_sensor);
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PRINTF("Press a button to request %s\n", service_urls[1]);
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#endif
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while(1) {
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PROCESS_YIELD();
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#if PLATFORM_HAS_BUTTON
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if (ev == sensors_event && data == &button_sensor) {
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/* send a request to notify the end of the process */
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PRINTF("--Toggle --\n");
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leds_toggle(LEDS_RED);
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/* prepare request, TID is set by COAP_BLOCKING_REQUEST() */
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coap_init_message(request, COAP_TYPE_CON, COAP_POST, 0 );
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coap_set_header_uri_path(request, service_urls[1]);
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const char msg[] = "Toggle!";
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coap_set_payload(request, (uint8_t *)msg, sizeof(msg)-1);
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PRINT6ADDR(&server_ipaddr);
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PRINTF(" : %u\n", UIP_HTONS(REMOTE_PORT));
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COAP_BLOCKING_REQUEST(&server_ipaddr, REMOTE_PORT, request, client_chunk_handler);
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PRINTF("\n--Done--\n");
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}
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#endif
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}
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PROCESS_END();
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}
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