void idmanager_setIsDAGroot(bool newRole) {
INTERRUPT_DECLARATION();
DISABLE_INTERRUPTS();
idmanager_vars.isDAGroot = newRole;
neighbors_updateMyDAGrankAndNeighborPreference();
ENABLE_INTERRUPTS();
}
/**
\brief Indicate I just received a RPL DIO from a neighbor.
This function should be called for each received a DIO is received so neighbor
routing information in the neighbor table can be updated.
The fields which are updated are:
- DAGrank
\param[in] msg The received message with msg->payload pointing to the DIO
header.
*/
void neighbors_indicateRxDIO(OpenQueueEntry_t* msg) {
uint8_t i;
uint8_t temp_8b;
// take ownership over the packet
msg->owner = COMPONENT_NEIGHBORS;
// update rank of that neighbor in table
neighbors_vars.dio = (icmpv6rpl_dio_ht*)(msg->payload);
// retrieve rank
temp_8b = *(msg->payload+2);
neighbors_vars.dio->rank = (temp_8b << 8) + *(msg->payload+3);
if (isNeighbor(&(msg->l2_nextORpreviousHop))==TRUE) {
for (i=0;i<MAXNUMNEIGHBORS;i++) {
if (isThisRowMatching(&(msg->l2_nextORpreviousHop),i)) {
if (
neighbors_vars.dio->rank > neighbors_vars.neighbors[i].DAGrank &&
neighbors_vars.dio->rank - neighbors_vars.neighbors[i].DAGrank >(DEFAULTLINKCOST*2*MINHOPRANKINCREASE)
) {
// the new DAGrank looks suspiciously high, only increment a bit
neighbors_vars.neighbors[i].DAGrank += (DEFAULTLINKCOST*2*MINHOPRANKINCREASE);
openserial_printError(COMPONENT_NEIGHBORS,ERR_LARGE_DAGRANK,
(errorparameter_t)neighbors_vars.dio->rank,
(errorparameter_t)neighbors_vars.neighbors[i].DAGrank);
} else {
neighbors_vars.neighbors[i].DAGrank = neighbors_vars.dio->rank;
}
break;
}
}
}
// update my routing information
neighbors_updateMyDAGrankAndNeighborPreference();
}
void neighbors_receiveDIO(OpenQueueEntry_t* msg,icmpv6rpl_dio_t* dio) {
uint8_t i;
// uint8_t temp_linkCost;
msg->owner = COMPONENT_NEIGHBORS;
if (isNeighbor(&(msg->l2_nextORpreviousHop))==TRUE) {
for (i=0;i<MAXNUMNEIGHBORS;i++) {
if (isThisRowMatching(&(msg->l2_nextORpreviousHop),i)) {
//neighbors_vars.neighbors[i].DAGrank = *((uint8_t*)(msg->payload));
//poipoi xv is the rang big endian??
neighbors_vars.neighbors[i].DAGrank = dio->rank;
// poipoi: single hop
/* if (neighbors_vars.neighbors[i].DAGrank==0x00) {
neighbors_vars.neighbors[i].parentPreference=MAXPREFERENCE;
if (neighbors_vars.neighbors[i].numTxACK==0) {
temp_linkCost=15; //TODO: evaluate using RSSI?
} else {
temp_linkCost=linkcost_calcETX(neighbors_vars.neighbors[i].numTx,neighbors_vars.neighbors[i].numTxACK);
}
if (idmanager_getIsDAGroot()==FALSE) {
neighbors_vars.myDAGrank=neighbors_vars.neighbors[i].DAGrank+temp_linkCost;
}
} else {
neighbors_vars.neighbors[i].parentPreference=0;
}*/
break;
}
}
}
// poipoi: single hop
neighbors_updateMyDAGrankAndNeighborPreference();
}
