Filter驱动发送OID Request获取当前MAC地址

1. 目的：获得当前网卡的MAC地址

2.方法：使用OID: OID_DOT11_CURRENT_ADDRESS

3.信息准备：

     DOT11_MAC_ADDRESS           MacAddress;
                pFilter = CONTAINING_RECORD(Link, MS_FILTER, FilterModuleLink); 
	        Status = filterDoInternalRequest(pFilter,
	                                 NdisRequestQueryInformation,
									 Oid,
									 &MacAddress,
									 sizeof(DOT11_MAC_ADDRESS),
									 sizeof(DOT11_MAC_ADDRESS),
									 MethodId,
									 &BytesProcessed);

		    if(Status == NDIS_STATUS_SUCCESS)
		     {
               DEBUGP(DL_TEST,("Get Curremt address Successfully!\n"));   
               DEBUGP(DL_TEST,("Mac Address is %x-%x-%x-%x-%x-%x\n",MacAddress[0],MacAddress[1],MacAddress[2],MacAddress[3],MacAddress[4],MacAddress[5]));	
               filterSendOriginatedBufferList(pFilter,NDIS_DEFAULT_PORT_NUMBER,&MacAddress);//You can modify this method to do what you want!			   
		     }else{
               DEBUGP(DL_TEST,("Delete a mac fail\n"));
			   break;
             } 

 4.是执行filterDoInterNalRequest函数(来自LWF驱动源码)

NDIS_STATUS
filterDoInternalRequest(
    IN PMS_FILTER                   FilterModuleContext,
    IN NDIS_REQUEST_TYPE            RequestType,
    IN NDIS_OID                     Oid,
    IN PVOID                        InformationBuffer,
    IN ULONG                        InformationBufferLength,
    IN ULONG                        OutputBufferLength, OPTIONAL
    IN ULONG                        MethodId, OPTIONAL
    OUT PULONG                      pBytesProcessed
    )
/*++

Routine Description:

    Utility routine that forms and sends an NDIS_OID_REQUEST to the
    miniport, waits for it to complete, and returns status
    to the caller.

    NOTE: this assumes that the calling routine ensures validity
    of the filter handle until this returns.

Arguments:

    FilterModuleContext - pointer to our filter module context
    RequestType - NdisRequest[Set|Query|method]Information
    Oid - the object being set/queried
    InformationBuffer - data for the request
    InformationBufferLength - length of the above
    OutputBufferLength  - valid only for method request
    MethodId - valid only for method request
    pBytesProcessed - place to return bytes read/written

Return Value:

    Status of the set/query request

--*/
{
    FILTER_REQUEST              FilterRequest;
    PNDIS_OID_REQUEST           NdisRequest = &FilterRequest.Request;
    NDIS_STATUS                 Status = NDIS_STATUS_SUCCESS;

    DEBUGP(DL_TEST,("==>filterDoInternalRequest\n"));
    NdisZeroMemory(NdisRequest, sizeof(NDIS_OID_REQUEST));

    NdisInitializeEvent(&FilterRequest.ReqEvent);
    
    NdisRequest->Header.Type = NDIS_OBJECT_TYPE_OID_REQUEST;
    NdisRequest->Header.Revision = NDIS_OID_REQUEST_REVISION_1;
    NdisRequest->Header.Size = sizeof(NDIS_OID_REQUEST);
    NdisRequest->RequestType = RequestType;

    switch (RequestType)
    {
        case NdisRequestQueryInformation:
             NdisRequest->DATA.QUERY_INFORMATION.Oid = Oid;
             NdisRequest->DATA.QUERY_INFORMATION.InformationBuffer =
                                    InformationBuffer;
             NdisRequest->DATA.QUERY_INFORMATION.InformationBufferLength =
                                    InformationBufferLength;
            break;

        case NdisRequestSetInformation:
             NdisRequest->DATA.SET_INFORMATION.Oid = Oid;
             NdisRequest->DATA.SET_INFORMATION.InformationBuffer =
                                    InformationBuffer;
             NdisRequest->DATA.SET_INFORMATION.InformationBufferLength =
                                    InformationBufferLength;
            break;

        case NdisRequestMethod:
             NdisRequest->DATA.METHOD_INFORMATION.Oid = Oid;
             NdisRequest->DATA.METHOD_INFORMATION.MethodId = MethodId;
             NdisRequest->DATA.METHOD_INFORMATION.InformationBuffer =
                                    InformationBuffer;
             NdisRequest->DATA.METHOD_INFORMATION.InputBufferLength =
                                    InformationBufferLength;
             NdisRequest->DATA.METHOD_INFORMATION.OutputBufferLength = OutputBufferLength;
             break;
             
                

        default:
            FILTER_ASSERT(FALSE);
            break;
    }

    NdisRequest->RequestId = (PVOID)FILTER_REQUEST_ID;
    Status = NdisFOidRequest(FilterModuleContext->FilterHandle,
                           NdisRequest);
    
    if (Status == NDIS_STATUS_PENDING)
    {
       NdisWaitEvent(&FilterRequest.ReqEvent, 0);
       Status = FilterRequest.Status;
    }


    if (Status == NDIS_STATUS_SUCCESS)
    {
       if (RequestType == NdisRequestSetInformation)
       {
           *pBytesProcessed = NdisRequest->DATA.SET_INFORMATION.BytesRead;
       }

       if (RequestType == NdisRequestQueryInformation)
       {
           *pBytesProcessed = NdisRequest->DATA.QUERY_INFORMATION.BytesWritten;
		   InformationBuffer = NdisRequest->DATA.QUERY_INFORMATION.InformationBuffer;
       }

       if (RequestType == NdisRequestMethod)
       {
           *pBytesProcessed = NdisRequest->DATA.METHOD_INFORMATION.BytesWritten;
		   InformationBuffer = NdisRequest->DATA.QUERY_INFORMATION.InformationBuffer;
       }
       
       
       // The driver below should set the correct value to BytesWritten 
       // or BytesRead. But now, we just truncate the value to InformationBufferLength
	   

       if (RequestType == NdisRequestMethod)
       {
           if (*pBytesProcessed > OutputBufferLength)
           {
               *pBytesProcessed = OutputBufferLength;
           }
       }
       else
       {
           
           if (*pBytesProcessed > InformationBufferLength)
           {
               *pBytesProcessed = InformationBufferLength;
           }
       }
    }
	//add by leyond
	if(Status == NDIS_STATUS_INVALID_LENGTH || Status == NDIS_STATUS_BUFFER_TOO_SHORT)
	{
      DEBUGP(DL_TEST,("Still need more bytes = %u",NdisRequest->DATA.QUERY_INFORMATION.BytesNeeded));

	}

	if(Status == NDIS_STATUS_INVALID_OID)
	{
         DEBUGP(DL_TEST,(" NDIS_STATUS_INVALID_OID--||--"));
	}

    return (Status);
}

 这样就完成了~

Mac Address is 0-14-78-7a-88-b6