DDK -> NDIS -> OID

Ну вот беру самый стандартный вариант, из C:NTDDKsrcnetworkndispassthru

NDIS_STATUS

MPQueryInformation(

IN	NDIS_HANDLE				MiniportAdapterContext,

IN	NDIS_OID				Oid,

IN	PVOID					InformationBuffer,

IN	ULONG					InformationBufferLength,

OUT PULONG					BytesWritten,

OUT PULONG					BytesNeeded

)

/*++



Routine Description:



Miniport QueryInfo handler.

In the Power Management scenario, OID_PNP_QUERY_POWER is not sent to the underlying miniport.

OID_PNP_CAPABILITES is passed as a request to the miniport below.

If the result is a success then the InformationBuffer is filled in the MPQueryPNPCapabilites.



LBFO - For present all queries are passed on to the miniports that they were requested on.



PM- If the MP is not ON (DeviceState > D0) return immediately  (except for query power and set power)

If MP is ON, but the PT is not at D0, then queue the queue the request for later processing



Requests to miniports are always serialized



Arguments:



MiniportAdapterContext	Pointer to the adapter structure

Oid						Oid for this query

InformationBuffer		Buffer for information

InformationBufferLength	Size of this buffer

BytesWritten			Specifies how much info is written

BytesNeeded				In case the buffer is smaller than what we need, tell them how much is needed





Return Value:



Return code from the NdisRequest below.



--*/

{

PADAPT	pAdapt = (PADAPT)MiniportAdapterContext;

NDIS_STATUS	Status = NDIS_STATUS_FAILURE;



do

{

//

// Return Success for this OID

//

if (Oid == OID_PNP_QUERY_POWER)

{

Status=NDIS_STATUS_SUCCESS;

break;

}



//

// All other queries are failed, if the miniport is not at D0

//

if (pAdapt->MPDeviceState > NdisDeviceStateD0 || pAdapt->StandingBy == TRUE)

{

Status = NDIS_STATUS_FAILURE;

break;

}

//

//	We are doing all sends on the secondary, so send all requests with Send OIDs to the Secondary

//

if (MPIsSendOID(Oid))

{

pAdapt = pAdapt->pSecondaryAdapt;

//

// Will point to itself, if there is no secondary (see initialization)

//



}



pAdapt->Request.RequestType = NdisRequestQueryInformation;

pAdapt->Request.DATA.QUERY_INFORMATION.Oid = Oid;

pAdapt->Request.DATA.QUERY_INFORMATION.InformationBuffer = InformationBuffer;

pAdapt->Request.DATA.QUERY_INFORMATION.InformationBufferLength = InformationBufferLength;

pAdapt->BytesNeeded = BytesNeeded;

pAdapt->BytesReadOrWritten = BytesWritten;

pAdapt->OutstandingRequests = TRUE;



//

// if the Protocol device state is OFF, then the IM driver cannot send the request below and must pend it

//

if (pAdapt->PTDeviceState > NdisDeviceStateD0)

{

pAdapt->QueuedRequest = TRUE;

Status = NDIS_STATUS_PENDING;

break;

}



//

// default case, most requests will be passed to the miniport below

//

NdisRequest(&Status,

pAdapt->BindingHandle,

&pAdapt->Request);



//

// If the Query was a success, pass the results back to the entity that made the request

//

if (Status == NDIS_STATUS_SUCCESS)

{

*BytesWritten = pAdapt->Request.DATA.QUERY_INFORMATION.BytesWritten;

*BytesNeeded = pAdapt->Request.DATA.QUERY_INFORMATION.BytesNeeded;

DbgPrint("okn");

} else 	DbgPrint("Not okn");





//

// Fill the buffer with the required values if Oid == OID_PNP_CAPABILITIES and the query was successful

//

if (Oid  == OID_PNP_CAPABILITIES  && Status == NDIS_STATUS_SUCCESS)

{

MPQueryPNPCapbilities(pAdapt,&Status);

}



if (Status != NDIS_STATUS_PENDING)

{

pAdapt->OutstandingRequests = FALSE;

}



} while (FALSE);





return(Status);



}

А теперь вопрос, почему я никак не могу получить в отладчике “ok”.
У меня в результате выполнения процедуры

NdisRequest(&Status,	pAdapt->BindingHandle,&pAdapt->Request);

Status никогда не принимает значение NDIS_STATUS_SUCCESS

Может ли из за этого в буфере

pAdapt->Request.DATA.QUERY_INFORMATION.InformationBuffer = InformationBuffer;

содержаться всякий мусор, вместо нужной мне информации?

Как получить статистику:

OID_802_3_RCV_ERROR_ALIGNMENT
The number of frames received with alignment errors.

OID_802_3_XMIT_ONE_COLLISION
The number of frames successfully transmitted after exactly one collision.

OID_802_3_XMIT_MORE_COLLISIONS
The number of frames successfully transmitted after more than one collision.

OID_802_3_XMIT_DEFERRED
The number of frames successfully transmitted after the NIC defers transmission at least once.

OID_802_3_XMIT_MAX_COLLISIONS
The number of frames not transmitted due to excessive collisions.

OID_802_3_RCV_OVERRUN
The number of frames not received due to overrun errors on the NIC.

OID_802_3_XMIT_UNDERRUN
The number of frames not transmitted due to underrun errors on the NIC.

OID_802_3_XMIT_HEARTBEAT_FAILURE
The number of frames successfully transmitted without detection of the collision-detect heartbeat.

OID_802_3_XMIT_TIMES_CRS_LOST
The number of times the CRS signal has been lost during packet transmission.

OID_802_3_XMIT_LATE_COLLISIONS
The number of collisions detected after the normal window.