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Detect if node is attached to a SLIP line to set node to become the network's gateway

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This commit is contained in:
adamdunkels 2008-02-24 21:13:03 +00:00
parent 5bcd0ab60b
commit 307fc41646
1 changed files with 56 additions and 6 deletions
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62
platform/sky/contiki-sky-main.c
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@ -26,7 +26,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)$Id: contiki-sky-main.c,v 1.27 2008/02/11 10:44:12 adamdunkels Exp $
* @(#)$Id: contiki-sky-main.c,v 1.28 2008/02/24 21:13:03 adamdunkels Exp $
*/
#include <signal.h>
@ -75,7 +75,8 @@ static struct uip_fw_netif slipif =
static struct uip_fw_netif meshif =
{UIP_FW_NETIF(172,16,0,0, 255,255,0,0, uip_over_mesh_send)};
#define UIP_OVER_MESH_CHANNEL 1
#define SLIP_TRICKLE_CHANNEL 8
#define UIP_OVER_MESH_CHANNEL 9
#endif /* WITH_UIP */
@ -127,6 +128,7 @@ set_rime_addr(void)
addr.u8[1] = node_id >> 8;
}
rimeaddr_set_node_addr(&addr);
printf("Rime started with address %d.%d\n", addr.u8[0], addr.u8[1]);
}
/*---------------------------------------------------------------------------*/
static void
@ -141,6 +143,49 @@ print_processes(struct process * const processes[])
putchar('\n');
}
/*--------------------------------------------------------------------------*/
#if WITH_UIP
struct gateway_msg {
rimeaddr_t gateway;
};
static uint8_t is_gateway;
static void
trickle_recv(struct trickle_conn *c)
{
struct gateway_msg *msg;
msg = rimebuf_dataptr();
printf("%d.%d: gateway message: %d.%d\n",
rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1],
msg->gateway.u8[0], msg->gateway.u8[1]);
if(!is_gateway) {
uip_over_mesh_set_gateway(&msg->gateway);
}
}
const static struct trickle_callbacks trickle_call = {trickle_recv};
static struct trickle_conn trickle;
/*---------------------------------------------------------------------------*/
static void
set_gateway(void)
{
struct gateway_msg msg;
/* Make this node the gateway node, unless it already is the
gateway. */
if(!is_gateway) {
leds_on(LEDS_RED);
printf("%d.%d: making myself the gateway\n",
rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1]);
uip_over_mesh_set_gateway(&rimeaddr_node_addr);
rimeaddr_copy(&(msg.gateway), &rimeaddr_node_addr);
rimebuf_copyfrom(&msg, sizeof(struct gateway_msg));
trickle_send(&trickle);
is_gateway = 1;
}
}
#endif /* WITH_UIP */
/*---------------------------------------------------------------------------*/
int
main(int argc, char **argv)
{
@ -151,12 +196,10 @@ main(int argc, char **argv)
clock_init();
leds_init();
leds_on(LEDS_RED);
uart1_init(BAUD2UBR(115200)); /* Must come before first printf */
#if WITH_UIP
uart1_init(BAUD2UBR(115200)); /* Must come before first printf */
slip_arch_init(BAUD2UBR(115200));
#else
uart1_init(BAUD2UBR(115200)); /* Must come before first printf */
#endif /* WITH_UIP */
leds_on(LEDS_GREEN);
@ -205,6 +248,8 @@ main(int argc, char **argv)
uip_over_mesh_set_gateway_netif(&slipif);
uip_fw_default(&meshif);
uip_over_mesh_init(UIP_OVER_MESH_CHANNEL);
printf("uIP started with IP address %d.%d.%d.%d\n",
uip_ipaddr_to_quad(&hostaddr));
}
#endif /* WITH_UIP */
@ -246,6 +291,11 @@ main(int argc, char **argv)
process_start(&tcpip_process, NULL);
process_start(&uip_fw_process, NULL); /* Start IP output */
process_start(&slip_process, NULL);
trickle_open(&trickle, CLOCK_SECOND * 4, SLIP_TRICKLE_CHANNEL,
&trickle_call);
slip_set_input_callback(set_gateway);
#endif /* WITH_UIP */
button_sensor.activate();