#endif		(int)l_Adapter->m_Rx,		(int)l_Adapter->m_RxErr,#if PACKET_TRUNCATION_CHECK		(int)l_Adapter->m_RxTrunc,#endif		(int)l_Adapter->m_Extension.m_IrpQueue->size,		(int)l_Adapter->m_Extension.m_IrpQueue->max_size,		(int)IRP_QUEUE_SIZE,		(int)l_Adapter->m_Extension.m_PacketQueue->size,		(int)l_Adapter->m_Extension.m_PacketQueue->max_size,		(int)PACKET_QUEUE_SIZE		);	      p_IRP->IoStatus.Information		= l_IrpSp->Parameters.DeviceIoControl.OutputBufferLength;	      break;	    }#if DBG	  case TAP_IOCTL_GET_LOG_LINE:	    {	      if (GetDebugLine ((LPTSTR)p_IRP->AssociatedIrp.SystemBuffer,				l_IrpSp->Parameters.DeviceIoControl.OutputBufferLength))		p_IRP->IoStatus.Status = l_Status = STATUS_SUCCESS;	      else		p_IRP->IoStatus.Status = l_Status = STATUS_UNSUCCESSFUL;	      p_IRP->IoStatus.Information		= l_IrpSp->Parameters.DeviceIoControl.OutputBufferLength;	      break;	    }#endif	  case TAP_IOCTL_CONFIG_TUN:	    {	      if (l_IrpSp->Parameters.DeviceIoControl.InputBufferLength >=		  (sizeof (IPADDR) * 3))		{		  MACADDR dest;		  l_Adapter->m_tun = FALSE;		  GenerateRelatedMAC (dest, l_Adapter->m_MAC, 1);		  l_Adapter->m_localIP =       ((IPADDR*) (p_IRP->AssociatedIrp.SystemBuffer))[0];		  l_Adapter->m_remoteNetwork = ((IPADDR*) (p_IRP->AssociatedIrp.SystemBuffer))[1];		  l_Adapter->m_remoteNetmask = ((IPADDR*) (p_IRP->AssociatedIrp.SystemBuffer))[2];		  // sanity check on network/netmask		  if ((l_Adapter->m_remoteNetwork & l_Adapter->m_remoteNetmask) != l_Adapter->m_remoteNetwork)		    {		      NOTE_ERROR ();		      p_IRP->IoStatus.Status = l_Status = STATUS_INVALID_PARAMETER;		      break;		    }		  COPY_MAC (l_Adapter->m_TapToUser.src, l_Adapter->m_MAC);		  COPY_MAC (l_Adapter->m_TapToUser.dest, dest);		  COPY_MAC (l_Adapter->m_UserToTap.src, dest);		  COPY_MAC (l_Adapter->m_UserToTap.dest, l_Adapter->m_MAC);		  l_Adapter->m_TapToUser.proto = l_Adapter->m_UserToTap.proto = htons (ETH_P_IP);		  l_Adapter->m_tun = TRUE;		  CheckIfDhcpAndTunMode (l_Adapter);		  p_IRP->IoStatus.Information = 1; // Simple boolean value		}	      else		{		  NOTE_ERROR ();		  p_IRP->IoStatus.Status = l_Status = STATUS_INVALID_PARAMETER;		}	      	      break;	    }	  case TAP_IOCTL_CONFIG_POINT_TO_POINT: // Obsoleted by TAP_IOCTL_CONFIG_TUN	    {	      if (l_IrpSp->Parameters.DeviceIoControl.InputBufferLength >=		  (sizeof (IPADDR) * 2))		{		  MACADDR dest;		  l_Adapter->m_tun = FALSE;		  GenerateRelatedMAC (dest, l_Adapter->m_MAC, 1);		  l_Adapter->m_localIP =       ((IPADDR*) (p_IRP->AssociatedIrp.SystemBuffer))[0];		  l_Adapter->m_remoteNetwork = ((IPADDR*) (p_IRP->AssociatedIrp.SystemBuffer))[1];		  l_Adapter->m_remoteNetmask = ~0;		  COPY_MAC (l_Adapter->m_TapToUser.src, l_Adapter->m_MAC);		  COPY_MAC (l_Adapter->m_TapToUser.dest, dest);		  COPY_MAC (l_Adapter->m_UserToTap.src, dest);		  COPY_MAC (l_Adapter->m_UserToTap.dest, l_Adapter->m_MAC);		  l_Adapter->m_TapToUser.proto = l_Adapter->m_UserToTap.proto = htons (ETH_P_IP);		  l_Adapter->m_tun = TRUE;		  CheckIfDhcpAndTunMode (l_Adapter);		  p_IRP->IoStatus.Information = 1; // Simple boolean value		}	      else		{		  NOTE_ERROR ();		  p_IRP->IoStatus.Status = l_Status = STATUS_INVALID_PARAMETER;		}	      	      break;	    }	  case TAP_IOCTL_SET_MEDIA_STATUS:	    {	      if (l_IrpSp->Parameters.DeviceIoControl.InputBufferLength >=		  (sizeof (ULONG) * 1))		{		  ULONG parm = ((PULONG) (p_IRP->AssociatedIrp.SystemBuffer))[0];		  SetMediaStatus (l_Adapter, (BOOLEAN) parm);		  p_IRP->IoStatus.Information = 1;		}	      else		{		  NOTE_ERROR ();		  p_IRP->IoStatus.Status = l_Status = STATUS_INVALID_PARAMETER;		}	      break;	    }	  case TAP_IOCTL_CONFIG_DHCP_MASQ:	    {	      if (l_IrpSp->Parameters.DeviceIoControl.InputBufferLength >=		  (sizeof (IPADDR) * 4))		{		  l_Adapter->m_dhcp_enabled = FALSE;		  l_Adapter->m_dhcp_server_arp = FALSE;		  l_Adapter->m_dhcp_user_supplied_options_buffer_len = 0;		  // Adapter IP addr / netmask		  l_Adapter->m_dhcp_addr =		    ((IPADDR*) (p_IRP->AssociatedIrp.SystemBuffer))[0];		  l_Adapter->m_dhcp_netmask =		    ((IPADDR*) (p_IRP->AssociatedIrp.SystemBuffer))[1];		  // IP addr of DHCP masq server		  l_Adapter->m_dhcp_server_ip =		    ((IPADDR*) (p_IRP->AssociatedIrp.SystemBuffer))[2];		  // Lease time in seconds		  l_Adapter->m_dhcp_lease_time =		    ((IPADDR*) (p_IRP->AssociatedIrp.SystemBuffer))[3];		  GenerateRelatedMAC (l_Adapter->m_dhcp_server_mac, l_Adapter->m_MAC, 2);		  l_Adapter->m_dhcp_enabled = TRUE;		  l_Adapter->m_dhcp_server_arp = TRUE;		  CheckIfDhcpAndTunMode (l_Adapter);		  p_IRP->IoStatus.Information = 1; // Simple boolean value		}	      else		{		  NOTE_ERROR ();		  p_IRP->IoStatus.Status = l_Status = STATUS_INVALID_PARAMETER;		}	      	      break;	    }	  case TAP_IOCTL_CONFIG_DHCP_SET_OPT:	    {	      if (l_IrpSp->Parameters.DeviceIoControl.InputBufferLength <=		  DHCP_USER_SUPPLIED_OPTIONS_BUFFER_SIZE		  && l_Adapter->m_dhcp_enabled)		{		  l_Adapter->m_dhcp_user_supplied_options_buffer_len = 0;		  NdisMoveMemory (l_Adapter->m_dhcp_user_supplied_options_buffer,				  p_IRP->AssociatedIrp.SystemBuffer,				  l_IrpSp->Parameters.DeviceIoControl.InputBufferLength);		  		  l_Adapter->m_dhcp_user_supplied_options_buffer_len = 		    l_IrpSp->Parameters.DeviceIoControl.InputBufferLength;		  p_IRP->IoStatus.Information = 1; // Simple boolean value		}	      else		{		  NOTE_ERROR ();		  p_IRP->IoStatus.Status = l_Status = STATUS_INVALID_PARAMETER;		}	      	      break;	    }	  default:	    {	      NOTE_ERROR ();	      p_IRP->IoStatus.Status = l_Status = STATUS_INVALID_PARAMETER;	      break;	    }	  }	IoCompleteRequest (p_IRP, IO_NO_INCREMENT);	break;      }      //===========================================================      // User mode thread issued a read request on the tap device      // If there are packets waiting to be read, then the request      // will be satisfied here. If not, then the request will be      // queued and satisfied by any packet that is not used to      // satisfy requests ahead of it.      //===========================================================    case IRP_MJ_READ:      {	TapPacketPointer l_PacketBuffer;	BOOLEAN pending = FALSE;	// Save IRP-accessible copy of buffer length	p_IRP->IoStatus.Information = l_IrpSp->Parameters.Read.Length;	if (p_IRP->MdlAddress == NULL)	  {	    DEBUGP (("[%s] MdlAddress is NULL for IRP_MJ_READ\n",		     NAME (l_Adapter)));	    NOTE_ERROR ();	    p_IRP->IoStatus.Status = l_Status = STATUS_INVALID_PARAMETER;	    p_IRP->IoStatus.Information = 0;	    IoCompleteRequest (p_IRP, IO_NO_INCREMENT);	    break;	  }	else if ((p_IRP->AssociatedIrp.SystemBuffer =		  MmGetSystemAddressForMdlSafe		  (p_IRP->MdlAddress, NormalPagePriority)) == NULL)	  {	    DEBUGP (("[%s] Could not map address in IRP_MJ_READ\n",		     NAME (l_Adapter)));	    NOTE_ERROR ();	    p_IRP->IoStatus.Status = l_Status = STATUS_INSUFFICIENT_RESOURCES;	    p_IRP->IoStatus.Information = 0;	    IoCompleteRequest (p_IRP, IO_NO_INCREMENT);	    break;	  }	else if (!l_Adapter->m_InterfaceIsRunning)	  {	    DEBUGP (("[%s] Interface is down in IRP_MJ_READ\n",		     NAME (l_Adapter)));	    NOTE_ERROR ();	    p_IRP->IoStatus.Status = l_Status = STATUS_UNSUCCESSFUL;	    p_IRP->IoStatus.Information = 0;	    IoCompleteRequest (p_IRP, IO_NO_INCREMENT);	    break;	  }	//==================================	// Can we provide immediate service?	//==================================	l_PacketBuffer = NULL;	NdisAcquireSpinLock (&l_Adapter->m_Extension.m_QueueLock);	if (IS_UP (l_Adapter)	    && QueueCount (l_Adapter->m_Extension.m_PacketQueue)	    && QueueCount (l_Adapter->m_Extension.m_IrpQueue) == 0)	  {	    l_PacketBuffer = (TapPacketPointer)	      QueuePop (l_Adapter->m_Extension.m_PacketQueue);	  }	NdisReleaseSpinLock (&l_Adapter->m_Extension.m_QueueLock);	if (l_PacketBuffer)	  {	    l_Status = CompleteIRP (p_IRP,				    l_PacketBuffer,				    IO_NO_INCREMENT);	    break;	  }	//=============================	// Attempt to pend read request	//=============================	NdisAcquireSpinLock (&l_Adapter->m_Extension.m_QueueLock);	if (IS_UP (l_Adapter)	    && QueuePush (l_Adapter->m_Extension.m_IrpQueue, p_IRP) == (PIRP) p_IRP)	  {	    IoSetCancelRoutine (p_IRP, CancelIRPCallback);	    l_Status = STATUS_PENDING;	    IoMarkIrpPending (p_IRP);	    pending = TRUE;	  }	NdisReleaseSpinLock (&l_Adapter->m_Extension.m_QueueLock);	if (pending)	  break;	// Can't queue anymore IRP's	DEBUGP (("[%s] TAP [%s] read IRP overrun\n",		 NAME (l_Adapter), l_Adapter->m_Extension.m_TapName));	NOTE_ERROR ();	p_IRP->IoStatus.Status = l_Status = STATUS_UNSUCCESSFUL;	p_IRP->IoStatus.Information = 0;	IoCompleteRequest (p_IRP, IO_NO_INCREMENT);	break;      }      //==============================================================      // User mode issued a WriteFile request on the TAP file handle.      // The request will always get satisfied here.  The call may      // fail if there are too many pending packets (queue full).      //==============================================================    case IRP_MJ_WRITE:      {	if (p_IRP->MdlAddress == NULL)	  {	    DEBUGP (("[%s] MdlAddress is NULL for IRP_MJ_WRITE\n",		     NAME (l_Adapter)));	    NOTE_ERROR ();	    p_IRP->IoStatus.Status = l_Status = STATUS_INVALID_PARAMETER;	    p_IRP->IoStatus.Information = 0;	  }	else if ((p_IRP->AssociatedIrp.SystemBuffer =		  MmGetSystemAddressForMdlSafe		  (p_IRP->MdlAddress, NormalPagePriority)) == NULL)	  {	    DEBUGP (("[%s] Could not map address in IRP_MJ_WRITE\n",		     NAME (l_Adapter)));	    NOTE_ERROR ();	    p_IRP->IoStatus.Status = l_Status = STATUS_INSUFFICIENT_RESOURCES;	    p_IRP->IoStatus.Information = 0;	  }	else if (!l_Adapter->m_InterfaceIsRunning)	  {	    DEBUGP (("[%s] Interface is down in IRP_MJ_WRITE\n",		     NAME (l_Adapter)));	    NOTE_ERROR ();	    p_IRP->IoStatus.Status = l_Status = STATUS_UNSUCCESSFUL;	    p_IRP->IoStatus.Information = 0;	  }	else if (!l_Adapter->m_tun && ((l_IrpSp->Parameters.Write.Length) >= ETHERNET_HEADER_SIZE))	  {	    __try	      {		p_IRP->IoStatus.Information = l_IrpSp->Parameters.Write.Length;		DUMP_PACKET ("IRP_MJ_WRITE ETH",			     (unsigned char *) p_IRP->AssociatedIrp.SystemBuffer,			     l_IrpSp->Parameters.Write.Length);    //=====================================================    // If IPv4 packet, check whether or not packet    // was truncated.    //=====================================================#if PACKET_TRUNCATION_CHECK		IPv4PacketSizeVerify ((unsigned char *) p_IRP->AssociatedIrp.SystemBuffer,				      l_IrpSp->Parameters.Write.Length,				      FALSE,				      "RX",				      &l_Adapter->m_RxTrunc);#endif		NdisMEthIndicateReceive		  (l_Adapter->m_MiniportAdapterHandle,		   (NDIS_HANDLE) l_Adapter,		   (unsigned char *) p_IRP->AssociatedIrp.SystemBuffer,		   ETHERNET_HEADER_SIZE,		   (unsigned char *) p_IRP->AssociatedIrp.SystemBuffer + ETHERNET_HEADER_SIZE,		   l_IrpSp->Parameters.Write.Length - ETHERNET_HEADER_SIZE,		   l_IrpSp->Parameters.Write.Length - ETHERNET_HEADER_SIZE);				NdisMEthIndicateReceiveComplete (l_Adapter->m_MiniportAdapterHandle);		p_IRP->IoStatus.Status = l_Status = STATUS_SUCCESS;	      }	    __except (EXCEPTION_EXECUTE_HANDLER)	      {		DEBUGP (("[%s] NdisMEthIndicateReceive failed in IRP_MJ_WRITE\n",			 NAME (l_Adapter)));		NOTE_ERROR ();		p_IRP->IoStatus.Status = l_Status = STATUS_UNSUCCESSFUL;		p_IRP->IoStatus.Information = 0;	      }	  }	else if (l_Adapter->m_tun && ((l_IrpSp->Parameters.Write.Length) >= IP_HEADER_SIZE))	  {	    __try	      {		p_IRP->IoStatus.Information = l_IrpSp->Parameters.Write.Length;		DUMP_PACKET2 ("IRP_MJ_WRITE P2P",			      &l_Adapter->m_UserToTap,			      (unsigned char *) p_IRP->AssociatedIrp.SystemBuffer,			      l_IrpSp->Parameters.Write.Length);    //=====================================================    // If IPv4 packet, check whether or not packet    // was truncated.    //=====================================================#if PACKET_TRUNCATION_CHECK		IPv4PacketSizeVerify ((unsigned char *) p_IRP->AssociatedIrp.SystemBuffer,				      l_IrpSp->Parameters.Write.Length,				      TRUE,				      "RX",				      &l_Adapter->m_RxTrunc);#endif		NdisMEthIndicateReceive		  (l_Adapter->m_MiniportAdapterHandle,		   (NDIS_HANDLE) l_Adapter,		   (unsigned char *) &l_Adapter->m_UserToTap,		   sizeof (l_Adapter->m_UserToTap),		   (unsigned char *) p_IRP->AssociatedIrp.SystemBuffer,		   l_IrpSp->Parameters.Write.Length,		   l_IrpSp->Parameters.Write.Length);		NdisMEthIndicateReceiveComplete (l_Adapter->m_MiniportAdapterHandle);		p_IRP->IoStatus.Status = l_Status = STATUS_SUCCESS;	      }	    __except (EXCEPTION_EXECUTE_HANDLER)	      {		DEBUGP (("[%s] NdisMEthIndicateReceive failed in IRP_MJ_WRITE (P2P)\n",			 NAME (l_Adapter)));		NOTE_ERROR ();		p_IRP->IoStatus.Status = l_Status = STATUS_UNSUCCESSFUL;		p_IRP->IoStatus.Information = 0;	      }	  }	else	  {	    DEBUGP (("[%s] Bad buffer size in IRP_MJ_WRITE, len=%d\n",		     NAME (l_Adapter),		     l_IrpSp->Parameters.Write.Length));	    NOTE_ERROR ();	    p_IRP->IoStatus.Information = 0;	// ETHER