Hello,
I am using the 802_15_4 MAC api to configure my device as a coordinator.
After it has been configured as a coordinator I want another device to connect to it.
I can see by sniffing the channel that an association request is sent from the device and I can see that an association_indication on the coordinator is received.
When I then try to send an association response with
void mlme_associate_resp(mlme_associate_resp_t * resp);
I get an assert fault from the precompiled library:
00> <info> app: Assertion info: fsm:20004dc4,s:0,e:9 00> 00> <error> app: Assertion fault: !(p_fsm->recursion_protection == 0) line: 310 file: sys_fsm.c 00> 00> <error> app: ASSERTION FAILED at sys_fsm.c:310
Further more, the association_response is not sent and the radio stack freezes, i.e. no mlme function calls will trigger a callback.
Anyone have a clue what the assert fault is from?
I am using the structure defined in the library and I have tried both static declaration and using malloc to keep the structure in memory long enough.
Sniffer trace:
associate_indication function:
void panEnterAssociateInd(mlme_associate_ind_t *association_indication)
{
ShortAddress shortaddr;
Capability capability;
mlme_associate_resp_t *associate_response;
Boolean adlIsUpToDate; // Associated Device List is up to date.
Boolean pairingIsActive;
Boolean isOk;
shortaddr = UD_ADDR_NOT_ASSIGNED;
capability = association_indication->capability_information;
// Allocate a reponse message. .
associate_response = (mlme_associate_resp_t*)malloc(sizeof(mlme_associate_resp_t));
IC_ERROR_ASSERT( associate_response != NULL );
// Fill in reponse message for association denied case.
(void)memcpy(&associate_response->device_address, &association_indication->device_address, sizeof(mac_addr_t));
associate_response->assoc_short_address = shortaddr;
associate_response->status = MAC_PAN_ACCESS_DENIED;
// Free input message.
if ( ( capability & (1 << ALLOCATE_ADDRESS_BIT) ) == 0 )
{
// Device cannot handle short addresses. Association denied.
mlme_associate_resp(associate_response);
return;
}
adlIsUpToDate = FALSE;
if (asDevIsMemberMac((uint8_t*)&associate_response->device_address))
{
/* shortaddr = asDevGetShortAddress( resp->msgData.associateRes.deviceAddress ); */
shortaddr = asDevGetShortAddress((uint8_t*)&associate_response->device_address);
if ( asDevGetCapability( shortaddr ) == capability )
{
// Client is already in ADL with correct capability.
adlIsUpToDate = TRUE;
}
else
{
// Client is in ADL, but with wrong capability. Remove to allow new allocation.
asDevRemove( shortaddr );
}
}
if ( !adlIsUpToDate )
{
if ( isTemporary( capability ) )
{
if ( !asDevHasFreeSlot( TRUE ) )
{
// Make room for a new temporary association by cleaning old entries.
asDevRemoveTemporary();
}
}
else
{
// Permanent
if ( !asDevHasFreeSlot( FALSE ) )
{
// List is full. Association denied.
mlme_associate_resp(associate_response);
return;
}
}
// Create a new address and add to ADL.
shortaddr = asDevGetNextFreeShortAddress();
pairingIsActive = ( beaconPayload.protVerAndPairing & UD_BEACON_PAIRING_MASK ) != 0;
isOk = asDevAdd( shortaddr,
(uint8_t*)&associate_response->device_address,
capability,
pairingIsActive,
TRUE );
if ( !isOk )
{
// Failed to insert in ADL. Pairing mode mismatch? Association denied.
mlme_associate_resp(associate_response);
return;
}
}
// Association is granted.
associate_response->assoc_short_address = shortaddr;
associate_response->status = MAC_ASSOCIATION_SUCCESSFUL;
mlme_associate_resp(associate_response);
urReportEvent( RADIO_EV_PAIRED, shortaddr, uhfpGetShortAddr() );
}
