congdong007

Penetration Test、Software Developer

0%

NDIS6 how to drop packets

Posted on Edited on In , ,

In ndis6 how to drop packets?

in FilterSendNetBufferLists:

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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:

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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;