急！！在ReturnPacket的问题

我在做的是一个包转发的驱动，就是类似于XP下的Mac桥。用passthru改的。具体步骤，就是在PtReceivePacket后，调用NdisSend把包从另外一个网卡发出去。我现在已经实现的很好了，可是在XP系统下却有问题。我查了一下，发现如果使用NDIS5.1的特性（包可以重用），然后使用完后ReturnPacket。可是却在瞬时包数很多的情况下就会崩溃。

程序框架是这样的：PtReceivePacket时，调用SendBridgePackets发送数据包到另外一个网卡。然后在网卡发送完后调用PtSendComplete释放资源（ReturnPacket也是在这里调用的）。

部分程序如下：
VOID SendBridgePackets( PNDIS_STATUS Status, PADAPT pAdapt, PNDIS_PACKET Packet, DWORD dwFlags )
{
  if( NdisGetPacketFlags( Packet ) & NDIS_FLAGS_IS_LOOPBACK_PACKET )return;
  if( pAdapt->pBridgeAdapt )
  {
    NdisSetPacketFlags( Packet, dwFlags | BRIDGE_SEND_PACKET_FLAGS | NDIS_FLAGS_IPF_RECEIVED_PACKET );

    NdisSend( Status, pAdapt->pBridgeAdapt->BindingHandle, Packet );
    if( *Status != NDIS_STATUS_PENDING )
    {
#ifdef NDIS51
      if( NdisGetPoolFromPacket( Packet ) == pAdapt->RecvPacketPoolHandle )
#endif // NDIS51
      {
        NdisDprFreePacket( Packet );
        *Status = NDIS_STATUS_RESOURCES;
      }
    }
}

PtReceivePacket( ... )
{
#ifdef NDIS51
//
// Check if we can reuse the same packet for indicating up.
// See also: PtReceive().
//
NdisIMGetCurrentPacketStack( Packet, &Remaining );
if( Remaining )
{
  //
  // We can reuse \"Packet\". Indicate it up and be done with it.
  //
  Status = NDIS_GET_PACKET_STATUS( Packet );
  SendBridgePackets( &Status, pAdapt, Packet, 0 );
  return Status != NDIS_STATUS_RESOURCES ? 1 : 0;
#endif // NDIS51
  ...
}

VOID IPF_PtSendComplete
(
IN NDIS_HANDLE ProtocolBindingContext,
IN PNDIS_PACKET Packet,
IN NDIS_STATUS Status
)
{
PADAPT pAdapt = ( PADAPT )ProtocolBindingContext;
PNDIS_PACKET Pkt;

if( NdisGetPacketFlags( Packet ) & NDIS_FLAGS_IPF_RECEIVED_PACKET )
{
#ifdef NDIS51
if( NdisGetPoolFromPacket( Packet ) != pAdapt->RecvPacketPoolHandle &&
NdisGetPoolFromPacket( Packet ) != pAdapt->pBridgeAdapt->RecvPacketPoolHandle )
{
NdisReturnPackets( &Packet, 1 );
}
else
#endif // NDIS51
{
if( NdisGetPacketFlags( Packet ) & NDIS_FLAGS_IPF_LOCAL_BUFFER )
{
UINT nLength;
PVOID pData;
PNDIS_BUFFER pBuffer;

NdisUnchainBufferAtFront( Packet, &pBuffer );
NdisDprFreePacket( Packet );

NdisQueryBuffer( pBuffer, &pData, &nLength );
NdisFreeBuffer( pBuffer );

NdisFreeMemory( pData, nLength, 0 );
}
else
{
// Pkt = ( ( PRECV_RSVD )Packet->MiniportReserved )->OriginalPkt;

NdisDprFreePacket( Packet );
// if( Pkt )NdisReturnPackets( &Pkt, 1 );
}
}
}
else
{
#ifdef NDIS51
if( NdisGetPoolFromPacket( Packet ) != pAdapt->SendPacketPoolHandle )
{
//
// We had passed down a packet belonging to the protocol above us.
//
NdisMSendComplete( pAdapt->MiniportHandle, Packet, Status );
}
else
#endif // NDIS51
{
Pkt = ( ( PSEND_RSVD )Packet->ProtocolReserved )->OriginalPkt;

#ifndef WIN9X
NdisIMCopySendCompletePerPacketInfo( Pkt, Packet );
#endif

NdisDprFreePacket( Packet );
NdisMSendComplete( pAdapt->MiniportHandle, Pkt, Status );
}
}
}

没人回答啊？老大们呢？帮帮忙吧，焦头烂额了

你把原代码发到我信箱里，我帮你看看，我已经做了多个转发包的项目了，x2651@163.com

建议了解Mobile ad-hoc network(MANET),不用两个网卡这么麻烦，呵呵