189 lines
6.2 KiB
C
189 lines
6.2 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 "sleep.h"
|
|
#include "board-sensors.h"
|
|
|
|
#include <string.h>
|
|
|
|
#define DEBUG DEBUG_PRINT
|
|
#include "net/uip-debug.h"
|
|
|
|
#define SEND_INTERVAL 25 * CLOCK_SECOND
|
|
|
|
/* Seconds during which the system must be in deep sleep.
|
|
* During deep sleep all the OS is frozen. */
|
|
#define SLEEP_INTERVAL_SECONDS 6
|
|
/* System does not go to sleep until AWAKE_INTERVAL is passed.
|
|
* This is done to let IP stack receive Neigbhor Advertisements
|
|
* and eventual response packets from the server. */
|
|
#define AWAKE_INTERVAL 3 * CLOCK_SECOND
|
|
#define MAX_PAYLOAD_LEN 40
|
|
|
|
static struct uip_udp_conn *client_conn;
|
|
/*---------------------------------------------------------------------------*/
|
|
PROCESS(udp_client_process, "UDP client process");
|
|
AUTOSTART_PROCESSES(&udp_client_process);
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
tcpip_handler(void)
|
|
{
|
|
char *str;
|
|
|
|
if(uip_newdata()) {
|
|
str = uip_appdata;
|
|
str[uip_datalen()] = '\0';
|
|
printf("Response from the server: '%s'\n", str);
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
timeout_handler(void)
|
|
{
|
|
static int seq_id;
|
|
char buf[MAX_PAYLOAD_LEN];
|
|
|
|
printf("Client sending to: ");
|
|
PRINT6ADDR(&client_conn->ripaddr);
|
|
sprintf(buf, "Hello %d from the client", ++seq_id);
|
|
printf(" (msg: %s)\n", buf);
|
|
#if SEND_TOO_LARGE_PACKET_TO_TEST_FRAGMENTATION
|
|
uip_udp_packet_send(client_conn, buf, UIP_APPDATA_SIZE);
|
|
#else /* SEND_TOO_LARGE_PACKET_TO_TEST_FRAGMENTATION */
|
|
uip_udp_packet_send(client_conn, buf, strlen(buf));
|
|
#endif /* SEND_TOO_LARGE_PACKET_TO_TEST_FRAGMENTATION */
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
print_local_addresses(void)
|
|
{
|
|
int i;
|
|
uint8_t state;
|
|
|
|
PRINTF("Client 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");
|
|
}
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
#if UIP_CONF_ROUTER
|
|
static void
|
|
set_global_address(void)
|
|
{
|
|
uip_ipaddr_t ipaddr;
|
|
|
|
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 */
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
set_connection_address(uip_ipaddr_t *ipaddr)
|
|
{
|
|
#define _QUOTEME(x) #x
|
|
#define QUOTEME(x) _QUOTEME(x)
|
|
#ifdef UDP_CONNECTION_ADDR
|
|
if(uiplib_ipaddrconv(QUOTEME(UDP_CONNECTION_ADDR), ipaddr) == 0) {
|
|
PRINTF("UDP client failed to parse address '%s'\n", QUOTEME(UDP_CONNECTION_ADDR));
|
|
}
|
|
#elif UIP_CONF_ROUTER
|
|
uip_ip6addr(ipaddr,0xaaaa,0,0,0,0x0280,0xe102,0x0000,0x008a);
|
|
#else
|
|
uip_ip6addr(ipaddr,0xfe80,0,0,0,0x0280,0xe102,0x0000,0x008a);
|
|
#endif /* UDP_CONNECTION_ADDR */
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
PROCESS_THREAD(udp_client_process, ev, data)
|
|
{
|
|
static struct etimer et, wake_timer, periodic_timer;
|
|
uip_ipaddr_t ipaddr;
|
|
|
|
PROCESS_BEGIN();
|
|
PRINTF("UDP client process started\n");
|
|
|
|
#if UIP_CONF_ROUTER
|
|
set_global_address();
|
|
#endif
|
|
|
|
print_local_addresses();
|
|
|
|
set_connection_address(&ipaddr);
|
|
|
|
/* new connection with remote host */
|
|
client_conn = udp_new(&ipaddr, UIP_HTONS(3000), NULL);
|
|
udp_bind(client_conn, UIP_HTONS(3001));
|
|
|
|
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, CLOCK_SECOND*10);
|
|
PROCESS_WAIT_UNTIL(etimer_expired(&et)); // Wait for DAD and Router Discovery procedure to end.
|
|
|
|
etimer_set(&et, SEND_INTERVAL);
|
|
etimer_set(&wake_timer, AWAKE_INTERVAL);
|
|
etimer_set(&periodic_timer, 1);
|
|
|
|
while(1) {
|
|
PROCESS_YIELD();
|
|
if(etimer_expired(&wake_timer)){ // if timer hasn't expired do not go in deep sleep, in order to receive a response.
|
|
printf("Sleeping...\r\n");
|
|
sensorsPowerDown();
|
|
sleep_seconds(SLEEP_INTERVAL_SECONDS); // Put system in deep sleep mode for a while.
|
|
sensorsPowerUp();
|
|
printf("Awake\r\n");
|
|
}
|
|
if(etimer_expired(&et)) {
|
|
timeout_handler();
|
|
etimer_restart(&et);
|
|
etimer_restart(&wake_timer);
|
|
} else if(ev == tcpip_event) {
|
|
tcpip_handler();
|
|
}
|
|
|
|
/* Make the process be called almost immediately,
|
|
* so that it can force the system to go into deep sleep. */
|
|
etimer_restart(&periodic_timer);
|
|
}
|
|
|
|
PROCESS_END();
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|