efilter.c File Reference

#include "ndissys.h"

Include dependency graph for efilter.c:

Go to the source code of this file.

Functions
BOOLEAN NTAPI	EthCreateFilter (IN UINT MaximumMulticastAddresses, IN PUCHAR AdapterAddress, OUT PETH_FILTER *Filter)
VOID EXPORT	EthDeleteFilter (IN PETH_FILTER Filter)
VOID EXPORT	EthFilterDprIndicateReceive (IN PETH_FILTER Filter, IN NDIS_HANDLE MacReceiveContext, IN PCHAR Address, IN PVOID HeaderBuffer, IN UINT HeaderBufferSize, IN PVOID LookaheadBuffer, IN UINT LookaheadBufferSize, IN UINT PacketSize)
VOID EXPORT	EthFilterDprIndicateReceiveComplete (IN PETH_FILTER Filter)

Function Documentation

EthCreateFilter()

BOOLEAN NTAPI EthCreateFilter	(	IN UINT	MaximumMulticastAddresses,
		IN PUCHAR	AdapterAddress,
		OUT PETH_FILTER *	Filter
	)

Definition at line 16 of file efilter.c.

{
  PETHI_FILTER NewFilter;
 
  NewFilter = ExAllocatePool(NonPagedPool, sizeof(ETHI_FILTER));
  if (NewFilter != NULL)
    {
      RtlZeroMemory(NewFilter, sizeof(ETHI_FILTER));
      NewFilter->MaxMulticastAddresses = MaximumMulticastAddresses;
      RtlCopyMemory(NewFilter->AdapterAddress, AdapterAddress, ETH_LENGTH_OF_ADDRESS);
      *Filter = (PETH_FILTER)NewFilter;
      return TRUE;
    }
  else
    {
      NDIS_DbgPrint(MIN_TRACE, ("Insufficient resources\n"));
      *Filter = NULL;
      return FALSE;
    }
}

Referenced by NdisIPnPStartDevice().

EthDeleteFilter()

VOID EXPORT EthDeleteFilter

(

IN PETH_FILTER

Filter

)

Definition at line 57 of file efilter.c.

{
    ExFreePool(Filter);
}

Referenced by NdisIPnPStopDevice().

EthFilterDprIndicateReceive()

VOID EXPORT EthFilterDprIndicateReceive	(	IN PETH_FILTER	Filter,
		IN NDIS_HANDLE	MacReceiveContext,
		IN PCHAR	Address,
		IN PVOID	HeaderBuffer,
		IN UINT	HeaderBufferSize,
		IN PVOID	LookaheadBuffer,
		IN UINT	LookaheadBufferSize,
		IN UINT	PacketSize
	)

Definition at line 69 of file efilter.c.

{
    /* Not sure if this is a valid thing to do, but we do arrive here early
     * in the boot process with Filter NULL.  We need to investigate whether
     * this should be handled or not allowed. */
    if( !Filter ) {
        NDIS_DbgPrint(MIN_TRACE, ("Filter is NULL\n"));
        return;
    }
    MiniIndicateData((PLOGICAL_ADAPTER)((PETHI_FILTER)Filter)->Miniport,
             MacReceiveContext,
             HeaderBuffer,
             HeaderBufferSize,
             LookaheadBuffer,
             LookaheadBufferSize,
             PacketSize);
}

Referenced by NdisIPnPStartDevice().

EthFilterDprIndicateReceiveComplete()

VOID EXPORT EthFilterDprIndicateReceiveComplete

(

IN PETH_FILTER

Filter

)

Definition at line 113 of file efilter.c.

{
  PLIST_ENTRY CurrentEntry;
  PLOGICAL_ADAPTER Adapter;
  PADAPTER_BINDING AdapterBinding;
 
  NDIS_DbgPrint(DEBUG_MINIPORT, ("Called.\n"));
 
  if( !Filter ) {
      NDIS_DbgPrint(MIN_TRACE, ("Filter is NULL\n"));
      return;
  }
 
  Adapter = (PLOGICAL_ADAPTER)((PETHI_FILTER)Filter)->Miniport;
 
  NDIS_DbgPrint(MAX_TRACE, ("acquiring miniport block lock\n"));
  KeAcquireSpinLockAtDpcLevel(&Adapter->NdisMiniportBlock.Lock);
    {
      CurrentEntry = Adapter->ProtocolListHead.Flink;
 
      while (CurrentEntry != &Adapter->ProtocolListHead)
        {
          AdapterBinding = CONTAINING_RECORD(CurrentEntry, ADAPTER_BINDING, AdapterListEntry);
 
          (*AdapterBinding->ProtocolBinding->Chars.ReceiveCompleteHandler)(
              AdapterBinding->NdisOpenBlock.ProtocolBindingContext);
 
          CurrentEntry = CurrentEntry->Flink;
        }
    }
  KeReleaseSpinLockFromDpcLevel(&Adapter->NdisMiniportBlock.Lock);
}

Referenced by NdisIPnPStartDevice().