/*---------------------------------------------------------------------------*/
static void
send(mac_callback_t sent, void *ptr)
{
struct akes_nbr_entry *entry;
packetbuf_set_attr(PACKETBUF_ATTR_FRAME_TYPE, FRAME802154_DATAFRAME);
if(packetbuf_holds_broadcast()) {
if(!akes_nbr_count(AKES_NBR_PERMANENT)) {
mac_call_sent_callback(sent, ptr, MAC_TX_ERR, 0);
return;
}
adaptivesec_add_security_header(NULL);
} else {
entry = akes_nbr_get_receiver_entry();
if(!entry || !entry->permanent) {
mac_call_sent_callback(sent, ptr, MAC_TX_ERR, 0);
return;
}
adaptivesec_add_security_header(&entry->permanent->anti_replay_info);
#if ANTI_REPLAY_WITH_SUPPRESSION
packetbuf_set_attr(PACKETBUF_ATTR_NEIGHBOR_INDEX, entry->local_index);
#endif /* ANTI_REPLAY_WITH_SUPPRESSION */
}
#if !ANTI_REPLAY_WITH_SUPPRESSION && !POTR_ENABLED
framer_802154_set_seqno();
#endif /* ANTI_REPLAY_WITH_SUPPRESSION && !POTR_ENABLED */
ADAPTIVESEC_STRATEGY.send(sent, ptr);
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(delete_process, ev, data)
{
static struct etimer update_check_timer;
static struct etimer update_send_timer;
static struct akes_nbr_entry *next;
PROCESS_BEGIN();
PRINTF("akes-delete: Started update_process\n");
etimer_set(&update_check_timer, UPDATE_CHECK_INTERVAL * CLOCK_SECOND);
while(1) {
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&update_check_timer));
PRINTF("akes-delete: #permanent = %d\n", akes_nbr_count(AKES_NBR_PERMANENT));
next = akes_nbr_head();
while(next) {
if(!next->permanent || !akes_nbr_is_expired(next, AKES_NBR_PERMANENT)) {
next = akes_nbr_next(next);
continue;
}
/* wait for a random period of time to avoid collisions */
etimer_set(&update_send_timer, akes_get_random_waiting_period());
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&update_send_timer));
/* check if something happened in the meantime */
if(!akes_nbr_is_expired(next, AKES_NBR_PERMANENT)) {
next = akes_nbr_next(next);
continue;
}
/* send UPDATE */
akes_send_update(next);
PROCESS_YIELD_UNTIL(ev == PROCESS_EVENT_POLL);
PRINTF("akes-delete: Sent UPDATE\n");
etimer_set(&update_send_timer, UPDATEACK_WAITING_PERIOD * CLOCK_SECOND);
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&update_send_timer));
if(akes_nbr_is_expired(next, AKES_NBR_PERMANENT)) {
akes_nbr_delete(next, AKES_NBR_PERMANENT);
next = akes_nbr_head();
} else {
next = akes_nbr_next(next);
}
}
etimer_restart(&update_check_timer);
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
static int
get_reset_threshold(void)
{
return MAX(akes_nbr_count(AKES_NBR_PERMANENT) / 4, 1);
}
