6655c876f2
The added function let a process to make the system go into deep sleep for maximum power saving. The udp-ipv6-example shows how to use these new functions.
117 lines
3.8 KiB
C
117 lines
3.8 KiB
C
/*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the Institute nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* This file is part of the Contiki operating system.
|
|
*
|
|
*/
|
|
|
|
#include "contiki.h"
|
|
#include "contiki-lib.h"
|
|
#include "contiki-net.h"
|
|
|
|
#include <string.h>
|
|
|
|
#define DEBUG DEBUG_PRINT
|
|
#include "net/uip-debug.h"
|
|
|
|
#define UIP_IP_BUF ((struct uip_ip_hdr *)&uip_buf[UIP_LLH_LEN])
|
|
|
|
#define MAX_PAYLOAD_LEN 120
|
|
|
|
static struct uip_udp_conn *server_conn;
|
|
|
|
PROCESS(udp_server_process, "UDP server process");
|
|
AUTOSTART_PROCESSES(&udp_server_process);
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
tcpip_handler(void)
|
|
{
|
|
static int seq_id;
|
|
char buf[MAX_PAYLOAD_LEN];
|
|
|
|
if(uip_newdata()) {
|
|
((char *)uip_appdata)[uip_datalen()] = 0;
|
|
PRINTF("Server received: '%s' from ", (char *)uip_appdata);
|
|
PRINT6ADDR(&UIP_IP_BUF->srcipaddr);
|
|
PRINTF("\n");
|
|
|
|
uip_ipaddr_copy(&server_conn->ripaddr, &UIP_IP_BUF->srcipaddr);
|
|
PRINTF("Responding with message: ");
|
|
sprintf(buf, "Hello from the server! (%d)", ++seq_id);
|
|
PRINTF("%s\n", buf);
|
|
|
|
uip_udp_packet_send(server_conn, buf, strlen(buf));
|
|
/* Restore server connection to allow data from any node */
|
|
memset(&server_conn->ripaddr, 0, sizeof(server_conn->ripaddr));
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
print_local_addresses(void)
|
|
{
|
|
int i;
|
|
uint8_t state;
|
|
|
|
PRINTF("Server IPv6 addresses: ");
|
|
for(i = 0; i < UIP_DS6_ADDR_NB; i++) {
|
|
state = uip_ds6_if.addr_list[i].state;
|
|
if(uip_ds6_if.addr_list[i].isused &&
|
|
(state == ADDR_TENTATIVE || state == ADDR_PREFERRED)) {
|
|
PRINT6ADDR(&uip_ds6_if.addr_list[i].ipaddr);
|
|
PRINTF("\n");
|
|
}
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
PROCESS_THREAD(udp_server_process, ev, data)
|
|
{
|
|
#if UIP_CONF_ROUTER
|
|
uip_ipaddr_t ipaddr;
|
|
#endif /* UIP_CONF_ROUTER */
|
|
|
|
PROCESS_BEGIN();
|
|
PRINTF("UDP server started\n");
|
|
|
|
#if UIP_CONF_ROUTER
|
|
uip_ip6addr(&ipaddr, 0xaaaa, 0, 0, 0, 0, 0, 0, 0);
|
|
uip_ds6_set_addr_iid(&ipaddr, &uip_lladdr);
|
|
uip_ds6_addr_add(&ipaddr, 0, ADDR_AUTOCONF);
|
|
#endif /* UIP_CONF_ROUTER */
|
|
|
|
print_local_addresses();
|
|
|
|
server_conn = udp_new(NULL, UIP_HTONS(3001), NULL);
|
|
udp_bind(server_conn, UIP_HTONS(3000));
|
|
|
|
while(1) {
|
|
PROCESS_YIELD();
|
|
if(ev == tcpip_event) {
|
|
tcpip_handler();
|
|
}
|
|
}
|
|
|
|
PROCESS_END();
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|