/*---------------------------------------------------------------------------*/
static int
on_frame_created(void)
{
uint8_t sec_lvl;
enum akes_nbr_status status;
struct akes_nbr_entry *entry;
uint8_t *dataptr;
uint8_t datalen;
sec_lvl = adaptivesec_get_sec_lvl();
if(sec_lvl && !packetbuf_holds_broadcast()) {
status = akes_get_receiver_status();
entry = akes_nbr_get_receiver_entry();
if(!entry || !entry->refs[status]) {
return 0;
}
dataptr = packetbuf_dataptr();
datalen = packetbuf_datalen();
adaptivesec_aead(entry->refs[status]->pairwise_key,
sec_lvl & (1 << 2),
dataptr + datalen,
1);
packetbuf_set_datalen(datalen + ADAPTIVESEC_UNICAST_MIC_LEN);
}
return 1;
}
/*---------------------------------------------------------------------------*/
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);
}
