ndis6 how to drop packets

In ndis6 how to drop packets?

in FilterSendNetBufferLists:

   

FILTER_RELEASE_LOCK(&pFilter->Lock, DispatchLevel);

//DEBUGP(DL_TRACE, ("<===SendNetBufferList [CheckPacket] drop this packet. \n"));

 

CurrNbl = NetBufferLists;

while (CurrNbl)

{

NET_BUFFER_LIST_STATUS(CurrNbl) = NDIS_STATUS_MEDIA_DISCONNECTED ;

CurrNbl = NET_BUFFER_LIST_NEXT_NBL(CurrNbl);

}

NdisFSendNetBufferListsComplete(pFilter->FilterHandle,

NetBufferLists,

DispatchLevel ? NDIS_SEND_COMPLETE_FLAGS_DISPATCH_LEVEL : 0);

break;

 

in FilterReceiveNetBufferLists:

 

FILTER_RELEASE_LOCK(&pFilter->Lock, DispatchLevel);

if (NDIS_TEST_RECEIVE_CAN_PEND(ReceiveFlags))
{
ReturnFlags = 0;
if (NDIS_TEST_RECEIVE_AT_DISPATCH_LEVEL(ReceiveFlags))
{
NDIS_SET_RETURN_FLAG(ReturnFlags, NDIS_RETURN_FLAGS_DISPATCH_LEVEL);
}

NdisFReturnNetBufferLists(pFilter->FilterHandle, NetBufferLists, ReturnFlags);
}
break;