mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-12-22 10:30:13 +00:00
124 lines
3.6 KiB
C
124 lines
3.6 KiB
C
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include "contiki.h"
|
|
#include "contiki-net.h"
|
|
#include "rest.h"
|
|
#include "buffer.h"
|
|
|
|
#define DEBUG 1
|
|
#if DEBUG
|
|
#include <stdio.h>
|
|
#define PRINTF(...) printf(__VA_ARGS__)
|
|
#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])
|
|
#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])
|
|
#else
|
|
#define PRINTF(...)
|
|
#define PRINT6ADDR(addr)
|
|
#define PRINTLLADDR(addr)
|
|
#endif
|
|
|
|
#define SERVER_NODE(ipaddr) uip_ip6addr(ipaddr, 0xfe80, 0, 0, 0, 0x0212, 0x7401, 0x0001, 0x0101)
|
|
#define LOCAL_PORT 61617
|
|
#define REMOTE_PORT 61616
|
|
|
|
char temp[100];
|
|
int xact_id;
|
|
static uip_ipaddr_t server_ipaddr;
|
|
static struct uip_udp_conn *client_conn;
|
|
static struct etimer et;
|
|
#define MAX_PAYLOAD_LEN 100
|
|
|
|
#define NUMBER_OF_URLS 3
|
|
char* service_urls[NUMBER_OF_URLS] = {"light", ".well-known/core", "helloworld"};
|
|
|
|
static void
|
|
response_handler(coap_packet_t* response)
|
|
{
|
|
uint16_t payload_len = 0;
|
|
uint8_t* payload = NULL;
|
|
payload_len = coap_get_payload(response, &payload);
|
|
|
|
PRINTF("Response transaction id: %u", response->tid);
|
|
if (payload) {
|
|
memcpy(temp, payload, payload_len);
|
|
temp[payload_len] = 0;
|
|
PRINTF(" payload: %s\n", temp);
|
|
}
|
|
}
|
|
|
|
static void
|
|
send_data(void)
|
|
{
|
|
char buf[MAX_PAYLOAD_LEN];
|
|
|
|
if (init_buffer(COAP_DATA_BUFF_SIZE)) {
|
|
int data_size = 0;
|
|
int service_id = random_rand() % NUMBER_OF_URLS;
|
|
coap_packet_t* request = (coap_packet_t*)allocate_buffer(sizeof(coap_packet_t));
|
|
init_packet(request);
|
|
|
|
coap_set_method(request, COAP_GET);
|
|
request->tid = xact_id++;
|
|
request->type = MESSAGE_TYPE_CON;
|
|
coap_set_header_uri(request, service_urls[service_id]);
|
|
|
|
data_size = serialize_packet(request, buf);
|
|
|
|
PRINTF("Client sending request to:[");
|
|
PRINT6ADDR(&client_conn->ripaddr);
|
|
PRINTF("]:%u/%s\n", (uint16_t)REMOTE_PORT, service_urls[service_id]);
|
|
uip_udp_packet_send(client_conn, buf, data_size);
|
|
|
|
delete_buffer();
|
|
}
|
|
}
|
|
|
|
static void
|
|
handle_incoming_data()
|
|
{
|
|
PRINTF("Incoming packet size: %u \n", (uint16_t)uip_datalen());
|
|
if (init_buffer(COAP_DATA_BUFF_SIZE)) {
|
|
if (uip_newdata()) {
|
|
coap_packet_t* response = (coap_packet_t*)allocate_buffer(sizeof(coap_packet_t));
|
|
if (response) {
|
|
parse_message(response, uip_appdata, uip_datalen());
|
|
response_handler(response);
|
|
}
|
|
}
|
|
delete_buffer();
|
|
}
|
|
}
|
|
|
|
PROCESS(coap_client_example, "COAP Client Example");
|
|
AUTOSTART_PROCESSES(&coap_client_example);
|
|
|
|
PROCESS_THREAD(coap_client_example, ev, data)
|
|
{
|
|
PROCESS_BEGIN();
|
|
|
|
SERVER_NODE(&server_ipaddr);
|
|
|
|
/* new connection with server */
|
|
client_conn = udp_new(&server_ipaddr, UIP_HTONS(REMOTE_PORT), NULL);
|
|
udp_bind(client_conn, UIP_HTONS(LOCAL_PORT));
|
|
|
|
PRINTF("Created a connection with the server ");
|
|
PRINT6ADDR(&client_conn->ripaddr);
|
|
PRINTF(" local/remote port %u/%u\n",
|
|
UIP_HTONS(client_conn->lport), UIP_HTONS(client_conn->rport));
|
|
|
|
etimer_set(&et, 5 * CLOCK_SECOND);
|
|
while(1) {
|
|
PROCESS_YIELD();
|
|
if (etimer_expired(&et)) {
|
|
send_data();
|
|
etimer_reset(&et);
|
|
} else if (ev == tcpip_event) {
|
|
handle_incoming_data();
|
|
}
|
|
}
|
|
|
|
PROCESS_END();
|
|
}
|