/*---------------------------------------------------------------------------*/
void
uip_ds6_send_rs(void)
{
#if CONF_6LOWPAN_ND
uint16_t r;
#endif /* CONF_6LOWPAN_ND */
if((uip_ds6_defrt_choose() == NULL)
&& (rscount < UIP_ND6_MAX_RTR_SOLICITATIONS)) {
PRINTF("Sending RS %u\n", rscount);
uip_nd6_rs_output();
rscount++;
etimer_set(&uip_ds6_timer_rs,
UIP_ND6_RTR_SOLICITATION_INTERVAL * CLOCK_SECOND);
#if CONF_6LOWPAN_ND
} else if(uip_ds6_defrt_choose() == NULL) {
/* Slower retransmissions */
PRINTF("Sending RS slower %u\n", rscount);
uip_nd6_rs_output();
rscount++;
r = (((uint16_t)random_rand()) % ((2 << (rscount - 1) - 1) + 1)) * UIP_ND6_RTR_SOLICITATION_INTERVAL;
if(r >= UIP_ND6_MAX_RTR_SOLICITATION_INTERVAL) {
r = UIP_ND6_MAX_RTR_SOLICITATION_INTERVAL;
}
etimer_set(&uip_ds6_timer_rs, r * CLOCK_SECOND);
#endif /* CONF_6LOWPAN_ND */
} else {
PRINTF("Router found ? (boolean): %u\n",
(uip_ds6_defrt_choose() != NULL));
etimer_stop(&uip_ds6_timer_rs);
}
return;
}
void
uip_ds6_send_rs(uip_ds6_defrt_t *defrt)
{
u8_t unicast_rs = 0;
if (!timer_expired(&uip_ds6_timer_rs)) {
return;
}
locdefrt = NULL;
/* First check whether we can unicast the RS to a specific router rather than
* multicasting it. */
if ((defrt != NULL) && (defrt->isused)){
/* Mark this router as "sending_rs" in case it wasn't marked already */
defrt->sending_rs = 1;
locdefrt = defrt;
unicast_rs = 1;
} else {
for(locdefrt = uip_ds6_defrt_list;
locdefrt < uip_ds6_defrt_list + UIP_DS6_DEFRT_NB; locdefrt++) {
if((locdefrt->isused) && (locdefrt->sending_rs)) {
unicast_rs = 1;
break;
}
}
}
if (unicast_rs) {
if (locdefrt->rscount < UIP_ND6_MAX_RTR_SOLICITATIONS) {
/* Unicast RS and update count and timer */
uip_nd6_rs_output(&locdefrt->ipaddr);
locdefrt->rscount = locdefrt->rscount > 10 ? locdefrt->rscount : locdefrt->rscount + 1;
timer_set(&uip_ds6_timer_rs, rs_rtx_time(locdefrt->rscount) * CLOCK_SECOND);
return;
} else {
/* Switch to multicast */
locdefrt->sending_rs = 0;
rscount = locdefrt->rscount;
locdefrt->rscount = 0;
}
}
/* Multicast RS and update RS count and timer */
uip_nd6_rs_output(NULL);
if(uip_ds6_defrt_choose() == NULL) {
rscount = rscount > 10 ? rscount : rscount + 1;
} else {
rscount = 0;
}
/* Make sure we do not send rs more frequently than UIP_ND6_RTR_SOLICITATION_INTERVAL */
timer_set(&uip_ds6_timer_rs, rs_rtx_time(rscount) * CLOCK_SECOND);
}
/*---------------------------------------------------------------------------*/
void
uip_ds6_send_rs(void)
{
if((uip_ds6_defrt_choose() == NULL)
&& (rscount < UIP_ND6_MAX_RTR_SOLICITATIONS)) {
PRINTF("Sending RS u");//, rscount);
uip_nd6_rs_output();
rscount++;
etimer_set(&uip_ds6_timer_rs, tcpip_process,
UIP_ND6_RTR_SOLICITATION_INTERVAL * CLOCK_SECOND);
} else {
PRINTF("Router found ? (boolean): u");//, (uip_ds6_defrt_choose() != NULL));
etimer_stop(&uip_ds6_timer_rs);
}
return;
}
/*---------------------------------------------------------------------------*/
void
uip_ds6_send_rs(void)
{
if((uip_ds6_defrt_choose() == NULL)
&& (rscount < UIP_ND6_MAX_RTR_SOLICITATIONS)) {
PRINTF("Sending RS %u\n", rscount);
uip_nd6_rs_output();
rscount++;
timer_set(&uip_ds6_timer_rs,
UIP_ND6_RTR_SOLICITATION_INTERVAL * CLOCK_SECOND); // xxx changed from etimer
} else {
PRINTF("Router found ? (boolean): %u\n",
(uip_ds6_defrt_choose() != NULL));
timer_stop(&uip_ds6_timer_rs); // xxx changed from etimer
}
return;
}
/*---------------------------------------------------------------------------*/
void
uip_ds6_send_rs(struct net_buf *buf)
{
if((uip_ds6_defrt_choose() == NULL)
&& (rscount < UIP_ND6_MAX_RTR_SOLICITATIONS)) {
PRINTF("Sending RS %u\n", rscount);
uip_nd6_rs_output(buf);
rscount++;
etimer_set(&uip_ds6_timer_rs,
UIP_ND6_RTR_SOLICITATION_INTERVAL * CLOCK_SECOND,
&tcpip_process);
} else {
PRINTF("Router found ? (boolean): %u\n",
(uip_ds6_defrt_choose() != NULL));
etimer_stop(&uip_ds6_timer_rs);
}
return;
}