C++ InitializeListHead函数代码示例

/**
  Create a socket with initial data SockInitData.

  @param  SockInitData          Pointer to the initial data of the socket.

  @return Pointer to the newly created socket, return NULL when exception occured.

**/
SOCKET *
SockCreate (
  IN SOCK_INIT_DATA *SockInitData
  )
{
  SOCKET      *Sock;
  SOCKET      *Parent;
  EFI_STATUS  Status;

  ASSERT ((SockInitData != NULL) && (SockInitData->ProtoHandler != NULL));
  ASSERT (SockInitData->Type == SockStream);
  ASSERT ((SockInitData->ProtoData != NULL) && (SockInitData->DataSize <= PROTO_RESERVED_LEN));

  Parent = SockInitData->Parent;

  if ((Parent != NULL) && (Parent->ConnCnt == Parent->BackLog)) {
    DEBUG (
      (EFI_D_ERROR,
      "SockCreate: Socket parent has "
      "reached its connection limit with %d ConnCnt and %d BackLog\n",
      Parent->ConnCnt,
      Parent->BackLog)
      );

    return NULL;
  }

  Sock = AllocateZeroPool (sizeof (SOCKET));
  if (NULL == Sock) {

    DEBUG ((EFI_D_ERROR, "SockCreate: No resource to create a new socket\n"));
    return NULL;
  }

  InitializeListHead (&Sock->Link);
  InitializeListHead (&Sock->ConnectionList);
  InitializeListHead (&Sock->ListenTokenList);
  InitializeListHead (&Sock->RcvTokenList);
  InitializeListHead (&Sock->SndTokenList);
  InitializeListHead (&Sock->ProcessingSndTokenList);

  EfiInitializeLock (&(Sock->Lock), TPL_CALLBACK);

  Sock->SndBuffer.DataQueue = NetbufQueAlloc ();
  if (NULL == Sock->SndBuffer.DataQueue) {
    DEBUG ((EFI_D_ERROR, "SockCreate: No resource to allocate"
      " SndBuffer for new socket\n"));

    goto OnError;
  }

  Sock->RcvBuffer.DataQueue = NetbufQueAlloc ();
  if (NULL == Sock->RcvBuffer.DataQueue) {
    DEBUG ((EFI_D_ERROR, "SockCreate: No resource to allocate "
      "RcvBuffer for new socket\n"));

    goto OnError;
  }

  Sock->Signature           = SOCK_SIGNATURE;

  Sock->Parent              = Parent;
  Sock->BackLog             = SockInitData->BackLog;
  Sock->ProtoHandler        = SockInitData->ProtoHandler;
  Sock->SndBuffer.HighWater = SockInitData->SndBufferSize;
  Sock->RcvBuffer.HighWater = SockInitData->RcvBufferSize;
  Sock->Type                = SockInitData->Type;
  Sock->DriverBinding       = SockInitData->DriverBinding;
  Sock->State               = SockInitData->State;
  Sock->CreateCallback      = SockInitData->CreateCallback;
  Sock->DestroyCallback     = SockInitData->DestroyCallback;
  Sock->Context             = SockInitData->Context;

  Sock->SockError           = EFI_ABORTED;
  Sock->SndBuffer.LowWater  = SOCK_BUFF_LOW_WATER;
  Sock->RcvBuffer.LowWater  = SOCK_BUFF_LOW_WATER;

  //
  // Install protocol on Sock->SockHandle
  //
  CopyMem (
    &(Sock->NetProtocol.TcpProtocol),
    SockInitData->Protocol,
    sizeof (EFI_TCP4_PROTOCOL)
    );

  //
  // copy the protodata into socket
  //
  CopyMem (Sock->ProtoReserved, SockInitData->ProtoData, SockInitData->DataSize);

  Status = gBS->InstallMultipleProtocolInterfaces (
//.........这里部分代码省略.........

VOID
NTAPI
FatCreateRootDcb(IN PFAT_IRP_CONTEXT IrpContext,
                 IN PVCB Vcb)
{
    PFCB Dcb;

    /* Make sure it's not already created */
    ASSERT(!Vcb->RootDcb);

    /* Allocate the DCB */
    Dcb = FsRtlAllocatePoolWithTag(NonPagedPool,
                                   sizeof(FCB),
                                   TAG_FCB);

    /* Zero it */
    RtlZeroMemory(Dcb, sizeof(FCB));

    /* Assign it to the VCB */
    Vcb->RootDcb = Dcb;

    /* Set its header */
    Dcb->Header.NodeTypeCode = FAT_NTC_ROOT_DCB;
    Dcb->Header.NodeByteSize = sizeof(FCB);

    /* FCB is in a good condition */
    Dcb->Condition = FcbGood;

    /* Initialize FCB's resource */
    Dcb->Header.Resource = &Dcb->Resource;
    ExInitializeResourceLite(&Dcb->Resource);

    /* Initialize Paging Io resource*/
    Dcb->Header.PagingIoResource = &Dcb->PagingIoResource;
    ExInitializeResourceLite(&Dcb->PagingIoResource);

    /* Initialize a list of parent DCBs*/
    InitializeListHead(&Dcb->ParentDcbLinks);

    /* Set VCB */
    Dcb->Vcb = Vcb;

    /* Initialize parent's DCB list */
    InitializeListHead(&Dcb->Dcb.ParentDcbList);

    /* Initialize the full file name */
    Dcb->FullFileName.Buffer = L"\\";
    Dcb->FullFileName.Length = 1 * sizeof(WCHAR);
    Dcb->FullFileName.MaximumLength = 2 * sizeof(WCHAR);

    Dcb->ShortName.Name.Ansi.Buffer = "\\";
    Dcb->ShortName.Name.Ansi.Length = 1;
    Dcb->ShortName.Name.Ansi.MaximumLength = 2 * sizeof(CHAR);

    /* Fill dirent attribute byte copy */
    Dcb->DirentFatFlags = FILE_ATTRIBUTE_DIRECTORY;

    /* Initialize advanced FCB header fields */
    ExInitializeFastMutex(&Dcb->HeaderMutex);
    FsRtlSetupAdvancedHeader(&Dcb->Header, &Dcb->HeaderMutex);

    /* Set up first cluster field depending on FAT type */
    if (TRUE/*FatIsFat32(Vcb)*/)
    {
        /* First cluster is really the first cluster of this volume */
        Dcb->FirstClusterOfFile = Vcb->Bpb.RootDirFirstCluster;

        /* Calculate size of FAT32 root dir */
        Dcb->Header.AllocationSize.LowPart = 0xFFFFFFFF;
        //FatLookupFileAllocationSize(IrpContext, Dcb);
        DPRINT1("Calculation of a size of a root dir is missing!\n");

        Dcb->Header.FileSize.QuadPart = Dcb->Header.AllocationSize.QuadPart;
    }
    else
    {
#if 0
        /* Add MCB entry */
        FatAddMcbEntry(Vcb,
                       &Dcb->Mcb,
                       0,
                       FatRootDirectoryLbo(&Vcb->Bpb),
                       FatRootDirectorySize(&Vcb->Bpb));

        /* Set a real size of the root directory */
        Dcb->Header.FileSize.QuadPart = FatRootDirectorySize(&Vcb->Bpb);
        Dcb->Header.AllocationSize.QuadPart = Dcb->Header.FileSize.QuadPart;
#endif
        UNIMPLEMENTED;
    }
}

//@@@@@@@@@@@@@@@@@@@@@@@@
// IRQL = passive level
//@@@@@@@@@@@@@@@@@@@@@@@@@
extern "C" NTSTATUS DriverEntry( IN PDRIVER_OBJECT  pDriverObject, IN PUNICODE_STRING RegistryPath )
{	
	NTSTATUS Status = {0};
	
	DbgPrint("Keyboard Filter Driver - DriverEntry\nCompiled at " __TIME__ " on " __DATE__ "\n");
 		
	/////////////////////////////////////////////////////////////////////////////////////////
	// Fill in IRP dispatch table in the DriverObject to handle I/O Request Packets (IRPs) 
	/////////////////////////////////////////////////////////////////////////////////////////
	
	// For a filter driver, we want pass down ALL IRP_MJ_XX requests to the driver which
	// we are hooking except for those we are interested in modifying.
	for(int i = 0; i < IRP_MJ_MAXIMUM_FUNCTION; i++)
		pDriverObject->MajorFunction[i] = DispatchPassDown;
	DbgPrint("Filled dispatch table with generic pass down routine...\n");

	//Explicitly fill in the IRP's we want to hook
	pDriverObject->MajorFunction[IRP_MJ_READ] = DispatchRead;
	
	//Go ahead and hook the keyboard now
	HookKeyboard(pDriverObject);
	DbgPrint("Hooked IRP_MJ_READ routine...\n");

	//Set up our worker thread to handle file writes of the scan codes extracted from the 
	//read IRPs
	InitThreadKeyLogger(pDriverObject);

	//Initialize the linked list that will serve as a queue to hold the captured keyboard scan codes
	PDEVICE_EXTENSION pKeyboardDeviceExtension = (PDEVICE_EXTENSION)pDriverObject->DeviceObject->DeviceExtension; 
	InitializeListHead(&pKeyboardDeviceExtension->QueueListHead);

	//Initialize the lock for the linked list queue
	KeInitializeSpinLock(&pKeyboardDeviceExtension->lockQueue);

	//Initialize the work queue semaphore
	KeInitializeSemaphore(&pKeyboardDeviceExtension->semQueue, 0 , MAXLONG);

	//Create the log file
	IO_STATUS_BLOCK file_status;
	OBJECT_ATTRIBUTES obj_attrib;
	CCHAR		 ntNameFile[64] = "\\DosDevices\\c:\\klog.txt";
    STRING		 ntNameString;
	UNICODE_STRING uFileName;
    RtlInitAnsiString( &ntNameString, ntNameFile);
    RtlAnsiStringToUnicodeString(&uFileName, &ntNameString, TRUE );
	InitializeObjectAttributes(&obj_attrib, &uFileName, OBJ_CASE_INSENSITIVE, NULL, NULL);
	Status = ZwCreateFile(&pKeyboardDeviceExtension->hLogFile,GENERIC_WRITE,&obj_attrib,&file_status,
							NULL,FILE_ATTRIBUTE_NORMAL,0,FILE_OPEN_IF,FILE_SYNCHRONOUS_IO_NONALERT,NULL,0);
	RtlFreeUnicodeString(&uFileName);

	if (Status != STATUS_SUCCESS)
	{
		DbgPrint("Failed to create log file...\n");
		DbgPrint("File Status = %x\n",file_status);
	}
	else
	{
		DbgPrint("Successfully created log file...\n");
		DbgPrint("File Handle = %x\n",pKeyboardDeviceExtension->hLogFile);
	}

	// Set the DriverUnload procedure
	pDriverObject->DriverUnload = Unload;
	DbgPrint("Set DriverUnload function pointer...\n");
	DbgPrint("Exiting Driver Entry......\n");
	return STATUS_SUCCESS;
}

//.........这里部分代码省略.........
            PhRegisterCallback(
                PhGetGeneralCallback(GeneralCallbackMainWindowShowing),
                MainWindowShowingCallback,
                NULL,
                &MainWindowShowingCallbackRegistration
                );
            PhRegisterCallback(
                PhGetGeneralCallback(GeneralCallbackProcessPropertiesInitializing),
                ProcessPropertiesInitializingCallback,
                NULL,
                &ProcessPropertiesInitializingCallbackRegistration
                );
            PhRegisterCallback(
                PhGetGeneralCallback(GeneralCallbackHandlePropertiesInitializing),
                HandlePropertiesInitializingCallback,
                NULL,
                &HandlePropertiesInitializingCallbackRegistration
                );
            PhRegisterCallback(
                PhGetGeneralCallback(GeneralCallbackProcessMenuInitializing),
                ProcessMenuInitializingCallback,
                NULL,
                &ProcessMenuInitializingCallbackRegistration
                );
            PhRegisterCallback(
                PhGetGeneralCallback(GeneralCallbackThreadMenuInitializing),
                ThreadMenuInitializingCallback,
                NULL,
                &ThreadMenuInitializingCallbackRegistration
                );
            PhRegisterCallback(
                PhGetGeneralCallback(GeneralCallbackModuleMenuInitializing),
                ModuleMenuInitializingCallback,
                NULL,
                &ModuleMenuInitializingCallbackRegistration
                );
            PhRegisterCallback(
                PhGetGeneralCallback(GeneralCallbackProcessTreeNewInitializing),
                ProcessTreeNewInitializingCallback,
                NULL,
                &ProcessTreeNewInitializingCallbackRegistration
                );
            PhRegisterCallback(
                PhGetGeneralCallback(GeneralCallbackNetworkTreeNewInitializing),
                NetworkTreeNewInitializingCallback,
                NULL,
                &NetworkTreeNewInitializingCallbackRegistration
                );

            PhRegisterCallback(
                &PhProcessesUpdatedEvent,
                ProcessesUpdatedCallback,
                NULL,
                &ProcessesUpdatedCallbackRegistration
                );
            PhRegisterCallback(
                &PhNetworkItemsUpdatedEvent,
                NetworkItemsUpdatedCallback,
                NULL,
                &NetworkItemsUpdatedCallbackRegistration
                );

            InitializeListHead(&EtProcessBlockListHead);
            InitializeListHead(&EtNetworkBlockListHead);

            PhPluginSetObjectExtension(
                PluginInstance,
                EmProcessItemType,
                sizeof(ET_PROCESS_BLOCK),
                ProcessItemCreateCallback,
                ProcessItemDeleteCallback
                );
            PhPluginSetObjectExtension(
                PluginInstance,
                EmNetworkItemType,
                sizeof(ET_NETWORK_BLOCK),
                NetworkItemCreateCallback,
                NetworkItemDeleteCallback
                );

            {
                static PH_SETTING_CREATE settings[] =
                {
                    { StringSettingType, SETTING_NAME_DISK_TREE_LIST_COLUMNS, L"" },
                    { IntegerPairSettingType, SETTING_NAME_DISK_TREE_LIST_SORT, L"4,2" }, // 4, DescendingSortOrder
                    { IntegerSettingType, SETTING_NAME_ENABLE_ETW_MONITOR, L"1" },
                    { IntegerSettingType, SETTING_NAME_ETWSYS_ALWAYS_ON_TOP, L"0" },
                    { IntegerPairSettingType, SETTING_NAME_ETWSYS_WINDOW_POSITION, L"400,400" },
                    { IntegerPairSettingType, SETTING_NAME_ETWSYS_WINDOW_SIZE, L"500,400" },
                    { IntegerPairSettingType, SETTING_NAME_MEMORY_LISTS_WINDOW_POSITION, L"400,400" }
                };

                PhAddSettings(settings, sizeof(settings) / sizeof(PH_SETTING_CREATE));
            }
        }
        break;
    }

    return TRUE;
}

/*
    Our merge algorithm is pretty straightforward. 
    1. If the active context is not null and not the helper context, init the list of known contexts with
      the active context
    2. For all contexts in the inactive context list
        a. get the signature of the context
        b. For each context constructed so far
            if the signature of the two context are compatible
                merge the two the context
            else
                create a new context and add it to the list of constructed contexts        
    */
VOID
HvlPerformCtxMerge(
    PHVL pHvl,
    BOOLEAN *pfMerged
    )
{
    LIST_ENTRY *pEntryCtx = NULL;
    PHVL_CONTEXT pCtx = NULL;
    VNIC_SIGNATURE Ctx1Sig = {0}, Ctx2Sig = {0};
    BOOLEAN fMerge = FALSE;
    PHVL_CONTEXT HvlCtxArray[HVL_NUM_CONTEXTS] = {0};
    ULONG ulNumCtxs = 0, ulCtxIndex = 0, ulNumCtxsBeforeMerge = 0;

    ASSERT(HvlIsLocked(pHvl));

    *pfMerged = FALSE;
    
    if (pHvl->ulNumPortCtxs <= 2)
    {
        return;
    }

    ulNumCtxsBeforeMerge = pHvl->ulNumPortCtxs;
    
    /*
        1. If the active context is not null and not the helper context, init the list of known contexts with
          the active context
        */
    if (pHvl->pActiveContext && pHvl->pHelperPortCtx != pHvl->pActiveContext)
    {
        HvlCtxArray[ulNumCtxs++] = pHvl->pActiveContext;
    }

    /*
        2. For all contexts in the inactive context list
        */
    pEntryCtx = pHvl->InactiveContextList.Flink;
    while (pEntryCtx != &pHvl->InactiveContextList)
    {
        pCtx = CONTAINING_RECORD(pEntryCtx, HVL_CONTEXT, Link);

        // remove this context from the linked list
        RemoveEntryList (&pCtx->Link);
        InitializeListHead(&pCtx->Link);

        /*
            a. get the signature of the context
            */
        Ctx1Sig = HvlCtxGetSignature(pCtx);

        /*
            b. For each context constructed so far
            */
        fMerge = FALSE;
        for (ulCtxIndex = 0; ulCtxIndex < ulNumCtxs; ulCtxIndex++)
        {
            Ctx2Sig = HvlCtxGetSignature(HvlCtxArray[ulCtxIndex]);
            if (VNic11AreCompatibleSignatures(&Ctx1Sig, &Ctx2Sig))
            {
                fMerge = TRUE;
                break;
            }
        }

        /*
            if the signature of the two context are compatible
                merge the two the context
            else
                create a new context and add it to the list of constructed contexts        
            */
        if (fMerge)
        {
            HvlMergeCtxs(pHvl, pCtx, HvlCtxArray[ulCtxIndex]);
        }
        else
        {
            HvlCtxArray[ulNumCtxs++] = pCtx;
        }

        // move to the next context in the inactive context list
        pEntryCtx = pHvl->InactiveContextList.Flink;
    }

    /*
        We have walked the complete linked list of contexts
        */
    ASSERT(IsListEmpty(&pHvl->InactiveContextList));

//.........这里部分代码省略.........

/**
  Attach a Pcb to the socket.

  @param[in]  Sk                 Pointer to the socket of this TCP instance.

  @retval EFI_SUCCESS            The operation completed successfully.
  @retval EFI_OUT_OF_RESOURCES   Failed due to resource limits.

**/
EFI_STATUS
TcpAttachPcb (
  IN SOCKET  *Sk
  )
{
  TCP_CB          *Tcb;
  TCP_PROTO_DATA  *ProtoData;
  IP_IO           *IpIo;
  EFI_STATUS      Status;
  VOID            *Ip;
  EFI_GUID        *IpProtocolGuid;

  if (Sk->IpVersion == IP_VERSION_4) {
    IpProtocolGuid = &gEfiIp4ProtocolGuid;
  } else {
    IpProtocolGuid = &gEfiIp6ProtocolGuid;
  }
  
  Tcb = AllocateZeroPool (sizeof (TCP_CB));

  if (Tcb == NULL) {

    DEBUG ((EFI_D_ERROR, "TcpConfigurePcb: failed to allocate a TCB\n"));

    return EFI_OUT_OF_RESOURCES;
  }

  ProtoData = (TCP_PROTO_DATA *) Sk->ProtoReserved;
  IpIo      = ProtoData->TcpService->IpIo;

  //
  // Create an IpInfo for this Tcb.
  //
  Tcb->IpInfo = IpIoAddIp (IpIo);
  if (Tcb->IpInfo == NULL) {

    FreePool (Tcb);
    return EFI_OUT_OF_RESOURCES;
  }

  //
  // Open the new created IP instance BY_CHILD.
  //
  Status = gBS->OpenProtocol (
                  Tcb->IpInfo->ChildHandle,
                  IpProtocolGuid,
                  &Ip,
                  IpIo->Image,
                  Sk->SockHandle,
                  EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
                  );
  if (EFI_ERROR (Status)) {
    IpIoRemoveIp (IpIo, Tcb->IpInfo);
    return Status;
  }
  
  InitializeListHead (&Tcb->List);
  InitializeListHead (&Tcb->SndQue);
  InitializeListHead (&Tcb->RcvQue);

  Tcb->State        = TCP_CLOSED;
  Tcb->Sk           = Sk;
  ProtoData->TcpPcb = Tcb;

  return EFI_SUCCESS;
}

PCI_IO_DEVICE *
CreatePciIoDevice (
  IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL  *PciRootBridgeIo,
  IN PCI_TYPE00                       *Pci,
  UINT8                               Bus,
  UINT8                               Device,
  UINT8                               Func
  )
/*++

Routine Description:

Arguments:

Returns:

  None

--*/
{

  EFI_STATUS    Status;
  PCI_IO_DEVICE *PciIoDevice;

  PciIoDevice = NULL;

  Status = gBS->AllocatePool (
                  EfiBootServicesData,
                  sizeof (PCI_IO_DEVICE),
                  (VOID **) &PciIoDevice
                  );

  if (EFI_ERROR (Status)) {
    return NULL;
  }

  ZeroMem (PciIoDevice, sizeof (PCI_IO_DEVICE));

  PciIoDevice->Signature        = PCI_IO_DEVICE_SIGNATURE;
  PciIoDevice->Handle           = NULL;
  PciIoDevice->PciRootBridgeIo  = PciRootBridgeIo;
  PciIoDevice->DevicePath       = NULL;
  PciIoDevice->BusNumber        = Bus;
  PciIoDevice->DeviceNumber     = Device;
  PciIoDevice->FunctionNumber   = Func;
  PciIoDevice->Decodes          = 0;
  if (gFullEnumeration) {
    PciIoDevice->Allocated = FALSE;
  } else {
    PciIoDevice->Allocated = TRUE;
  }

  PciIoDevice->Attributes         = 0;
  PciIoDevice->Supports           = 0;
  PciIoDevice->BusOverride        = FALSE;
  PciIoDevice->IsPciExp           = FALSE;

  CopyMem (&(PciIoDevice->Pci), Pci, sizeof (PCI_TYPE01));

  //
  // Initialize the PCI I/O instance structure
  //

  Status  = InitializePciIoInstance (PciIoDevice);
  Status  = InitializePciDriverOverrideInstance (PciIoDevice);

  if (EFI_ERROR (Status)) {
    gBS->FreePool (PciIoDevice);
    return NULL;
  }

  //
  // Initialize the reserved resource list
  //
  InitializeListHead (&PciIoDevice->ReservedResourceList);

  //
  // Initialize the driver list
  //
  InitializeListHead (&PciIoDevice->OptionRomDriverList);

  //
  // Initialize the child list
  //
  InitializeListHead (&PciIoDevice->ChildList);

  return PciIoDevice;
}

PPRIMARY_SESSION
PrimarySession_Create (
	IN  PIRP_CONTEXT			IrpContext,  
	IN	PVOLUME_DEVICE_OBJECT	VolDo,		 
	IN  PSESSION_INFORMATION	SessionInformation,
	IN  PIRP					Irp
	)
{
	PPRIMARY_SESSION	primarySession;
 	OBJECT_ATTRIBUTES	objectAttributes;
	NTSTATUS			status;
	LARGE_INTEGER		timeOut;

		
	ASSERT( KeGetCurrentIrql() == PASSIVE_LEVEL );

	VolDo_Reference( VolDo );

	primarySession = FsRtlAllocatePoolWithTag( NonPagedPool, sizeof(PRIMARY_SESSION), NDFAT_ALLOC_TAG );
	
	if (primarySession == NULL) {

		ASSERT( NDASFAT_INSUFFICIENT_RESOURCES );
		VolDo_Dereference( VolDo );
		return NULL;
	}

	try {
	
		RtlZeroMemory( primarySession, sizeof(PRIMARY_SESSION) );

		primarySession->Flags = PRIMARY_SESSION_FLAG_INITIALIZING;

		primarySession->ReferenceCount = 1;
		primarySession->VolDo = VolDo;
		
		ExInitializeFastMutex( &primarySession->FastMutex );
		
		InitializeListHead( &primarySession->ListEntry );

		primarySession->NetdiskPartitionInformation = SessionInformation->NetdiskPartitionInformation;
	
		RtlInitEmptyUnicodeString( &primarySession->NetdiskPartitionInformation.VolumeName,
								   primarySession->NetdiskPartitionInformation.VolumeNameBuffer,
								   sizeof(primarySession->NetdiskPartitionInformation.VolumeNameBuffer) );

		if (RtlAppendUnicodeStringToString( &primarySession->NetdiskPartitionInformation.VolumeName,
											&SessionInformation->NetdiskPartitionInformation.VolumeName) != STATUS_SUCCESS) {

			ASSERT( NDASFAT_UNEXPECTED );
		}

		ASSERT( primarySession->NetdiskPartitionInformation.VolumeName.Buffer == primarySession->NetdiskPartitionInformation.VolumeNameBuffer );

		primarySession->ConnectionFileHandle		= SessionInformation->ConnectionFileHandle;
		primarySession->ConnectionFileObject		= SessionInformation->ConnectionFileObject;

		primarySession->RemoteAddress				= SessionInformation->RemoteAddress;
		primarySession->IsLocalAddress				= SessionInformation->IsLocalAddress;

		primarySession->Irp									= Irp;

		primarySession->SessionContext = SessionInformation->SessionContext;

		primarySession->SessionContext.PrimaryMaxDataSize	= DEFAULT_NDAS_MAX_DATA_SIZE; //SessionInformation->PrimaryMaxDataSize;
		primarySession->SessionContext.SecondaryMaxDataSize	= DEFAULT_NDAS_MAX_DATA_SIZE; // SessionInformation->SecondaryMaxDataSize;

		DebugTrace2( 0, Dbg2, ("primarySession->ConnectionFileHandle = %x " 
							   "primarySession->SessionContext.PrimaryMaxDataSize = %x primarySession->SessionContext.SecondaryMaxDataSize = %x\n", 
							    primarySession->ConnectionFileHandle, primarySession->SessionContext.PrimaryMaxDataSize, primarySession->SessionContext.SecondaryMaxDataSize) );

		KeInitializeEvent( &primarySession->ReadyEvent, NotificationEvent, FALSE );
	
		InitializeListHead( &primarySession->RequestQueue );
		KeInitializeSpinLock( &primarySession->RequestQSpinLock );
		KeInitializeEvent( &primarySession->RequestEvent, NotificationEvent, FALSE );

		primarySession->ThreadHandle = 0;
		primarySession->ThreadObject = NULL;

		primarySession->Thread.TdiReceiveContext.Irp = NULL;
		KeInitializeEvent( &primarySession->Thread.TdiReceiveContext.CompletionEvent, NotificationEvent, FALSE );

		InitializeObjectAttributes( &objectAttributes, NULL, OBJ_KERNEL_HANDLE, NULL, NULL );

		primarySession->Thread.SessionState = SESSION_TREE_CONNECT;
	
		ExInterlockedInsertTailList( &VolDo->PrimarySessionQueue,
									 &primarySession->ListEntry,
									 &VolDo->PrimarySessionQSpinLock );

		status = PsCreateSystemThread( &primarySession->ThreadHandle,
									   THREAD_ALL_ACCESS,
									   &objectAttributes,
									   NULL,
									   NULL,
									   PrimarySessionThreadProc,
									   primarySession );
	
		if (!NT_SUCCESS(status)) {
//.........这里部分代码省略.........

BOOLEAN
	CLog::Init()
{
	BOOLEAN		bRet		= FALSE;

	NTSTATUS	ntStatus	= STATUS_UNSUCCESSFUL;
	HANDLE		hThead		= NULL;  


	KdPrintKrnl(LOG_PRINTF_LEVEL_INFO, LOG_RECORED_LEVEL_NEEDNOT, L"begin");

	__try
	{
		InitializeListHead(&ms_ListHead);
		KeInitializeSpinLock(&ms_SpLock);	
		ExInitializeResourceLite(&ms_Lock);
		KeInitializeEvent(&ms_UnloadEvent, NotificationEvent, FALSE);

		ms_pLogFile = new(MEMORY_TAG_LOG) CKrnlStr;
		ms_pLogDir = new(MEMORY_TAG_LOG) CKrnlStr;

		ntStatus = PsCreateSystemThread(
			&hThead,
			GENERIC_ALL,
			NULL,
			NULL,
			NULL,
			ThreadStart,
			NULL
			);
		if (!NT_SUCCESS(ntStatus))
		{
			KdPrintKrnl(LOG_PRINTF_LEVEL_ERROR, LOG_RECORED_LEVEL_NEEDNOT, L"PsCreateSystemThread failed. (%x)",
				ntStatus);

			__leave;
		}

		ntStatus = ObReferenceObjectByHandle(
			hThead,
			GENERIC_ALL,
			*PsThreadType,
			KernelMode,
			(PVOID *)&ms_pEThread,
			NULL
			);
		if (!NT_SUCCESS(ntStatus))
		{
			KdPrintKrnl(LOG_PRINTF_LEVEL_ERROR, LOG_RECORED_LEVEL_NEEDNOT, L"ObReferenceObjectByHandle failed. (%x)",
				ntStatus);

			__leave;
		}

		KeSetBasePriorityThread(ms_pEThread, -4);

		ms_bCanInsertLog = TRUE;

		bRet = TRUE;
	}
	__finally
	{
		// 不要置为NULL
		if (ms_pEThread)
			ObDereferenceObject(ms_pEThread);

		if (hThead)
		{
			ZwClose(hThead);
			hThead = NULL;
		}

		if (!bRet)
		{
			delete ms_pLogFile;
			ms_pLogFile = NULL;

			delete ms_pLogDir;
			ms_pLogDir = NULL;

			ExDeleteResourceLite(&ms_Lock);
			RtlZeroMemory(&ms_Lock, sizeof(ms_Lock));
		}
	}

	KdPrintKrnl(LOG_PRINTF_LEVEL_INFO, LOG_RECORED_LEVEL_NEEDNOT, L"end");

	return bRet;
}

/*
 * @implemented
 */
BOOLEAN
NTAPI
FsRtlPrivateLock(IN PFILE_LOCK FileLock,
                 IN PFILE_OBJECT FileObject,
                 IN PLARGE_INTEGER FileOffset,
                 IN PLARGE_INTEGER Length,
                 IN PEPROCESS Process,
                 IN ULONG Key,
                 IN BOOLEAN FailImmediately,
                 IN BOOLEAN ExclusiveLock,
                 OUT PIO_STATUS_BLOCK IoStatus,
                 IN PIRP Irp OPTIONAL,
                 IN PVOID Context OPTIONAL,
                 IN BOOLEAN AlreadySynchronized)
{
    NTSTATUS Status;
    COMBINED_LOCK_ELEMENT ToInsert;
    PCOMBINED_LOCK_ELEMENT Conflict;
    PLOCK_INFORMATION LockInfo;
    PLOCK_SHARED_RANGE NewSharedRange;
    BOOLEAN InsertedNew;
    ULARGE_INTEGER UnsignedStart;
    ULARGE_INTEGER UnsignedEnd;
    
    DPRINT("FsRtlPrivateLock(%wZ, Offset %08x%08x (%d), Length %08x%08x (%d), Key %x, FailImmediately %u, Exclusive %u)\n", 
           &FileObject->FileName, 
           FileOffset->HighPart,
           FileOffset->LowPart, 
           (int)FileOffset->QuadPart,
           Length->HighPart,
           Length->LowPart, 
           (int)Length->QuadPart,
           Key,
           FailImmediately, 
           ExclusiveLock);
    
    UnsignedStart.QuadPart = FileOffset->QuadPart;
    UnsignedEnd.QuadPart = FileOffset->QuadPart + Length->QuadPart;

    if (UnsignedEnd.QuadPart < UnsignedStart.QuadPart)
    {
        DPRINT("File offset out of range\n");
        IoStatus->Status = STATUS_INVALID_PARAMETER;
        if (Irp)
        {
            DPRINT("Complete lock %p Status %x\n", Irp, IoStatus->Status);
            FsRtlCompleteLockIrpReal
                (FileLock->CompleteLockIrpRoutine,
                 Context,
                 Irp,
                 IoStatus->Status,
                 &Status,
                 FileObject);
        }
        return FALSE;
    }
    
    /* Initialize the lock, if necessary */
    if (!FileLock->LockInformation)
    {
        LockInfo = ExAllocatePoolWithTag(NonPagedPool, sizeof(LOCK_INFORMATION), TAG_FLOCK);
        if (!LockInfo)
        {
            IoStatus->Status = STATUS_NO_MEMORY;
            return FALSE;
        }
        FileLock->LockInformation = LockInfo;

        LockInfo->BelongsTo = FileLock;
        InitializeListHead(&LockInfo->SharedLocks);
        
        RtlInitializeGenericTable
            (&LockInfo->RangeTable,
             LockCompare,
             LockAllocate,
             LockFree,
             NULL);
        
        KeInitializeSpinLock(&LockInfo->CsqLock);
        InitializeListHead(&LockInfo->CsqList);
        
        IoCsqInitializeEx
            (&LockInfo->Csq, 
             LockInsertIrpEx,
             LockRemoveIrp,
             LockPeekNextIrp,
             LockAcquireQueueLock,
             LockReleaseQueueLock,
             LockCompleteCanceledIrp);
    }
    
    LockInfo = FileLock->LockInformation;
    ToInsert.Exclusive.FileLock.FileObject = FileObject;
    ToInsert.Exclusive.FileLock.StartingByte = *FileOffset;
    ToInsert.Exclusive.FileLock.EndingByte.QuadPart = FileOffset->QuadPart + Length->QuadPart;
    ToInsert.Exclusive.FileLock.ProcessId = Process->UniqueProcessId;
    ToInsert.Exclusive.FileLock.Key = Key;
//.........这里部分代码省略.........

/**
  This is the declaration of an EFI image entry point. This entry point is
  the same for UEFI Applications, UEFI OS Loaders, and UEFI Drivers, including
  both device drivers and bus drivers.

  The entry point for the IfConfig6 application which parses the command line input and calls the IfConfig6 process.

  @param[in] ImageHandle    The image handle of this application.
  @param[in] SystemTable    The pointer to the EFI System Table.

  @retval EFI_SUCCESS    The operation completed successfully.
  @retval Others         Some errors occur.

**/
EFI_STATUS
EFIAPI
IfConfig6Initialize (
  IN  EFI_HANDLE         ImageHandle,
  IN  EFI_SYSTEM_TABLE    *SystemTable
  )
{
  EFI_STATUS                Status;
  IFCONFIG6_PRIVATE_DATA    *Private;
  LIST_ENTRY                *ParamPackage;
  CONST CHAR16              *ValueStr;
  ARG_LIST                  *ArgList;
  CHAR16                    *ProblemParam;
  CHAR16                    *Str;

  Private = NULL;

  //
  // Register our string package with HII and return the handle to it.
  //
  mHiiHandle = HiiAddPackages (&gEfiCallerIdGuid, ImageHandle, IfConfig6Strings, NULL);
  ASSERT (mHiiHandle != NULL);

  Status = ShellCommandLineParseEx (mIfConfig6CheckList, &ParamPackage, &ProblemParam, TRUE, FALSE);
  if (EFI_ERROR (Status)) {
    ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_IFCONFIG6_ERR_INVALID_COMMAND), mHiiHandle, ProblemParam);
    goto ON_EXIT;
  }

  //
  // To handle no option.
  //
  if (!ShellCommandLineGetFlag (ParamPackage, L"-r") && !ShellCommandLineGetFlag (ParamPackage, L"-s") &&
      !ShellCommandLineGetFlag (ParamPackage, L"-?") && !ShellCommandLineGetFlag (ParamPackage, L"-l")) {
    ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_IFCONFIG6_LACK_OPTION), mHiiHandle);
    goto ON_EXIT;
  }
  //
  // To handle conflict options.
  //
  if (((ShellCommandLineGetFlag (ParamPackage, L"-r")) && (ShellCommandLineGetFlag (ParamPackage, L"-s"))) ||
      ((ShellCommandLineGetFlag (ParamPackage, L"-r")) && (ShellCommandLineGetFlag (ParamPackage, L"-l"))) ||
      ((ShellCommandLineGetFlag (ParamPackage, L"-r")) && (ShellCommandLineGetFlag (ParamPackage, L"-?"))) ||
      ((ShellCommandLineGetFlag (ParamPackage, L"-s")) && (ShellCommandLineGetFlag (ParamPackage, L"-l"))) ||
      ((ShellCommandLineGetFlag (ParamPackage, L"-s")) && (ShellCommandLineGetFlag (ParamPackage, L"-?"))) ||
      ((ShellCommandLineGetFlag (ParamPackage, L"-l")) && (ShellCommandLineGetFlag (ParamPackage, L"-?")))) {
    ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_IFCONFIG6_CONFLICT_OPTIONS), mHiiHandle);
    goto ON_EXIT;
  }
  //
  // To show the help information of ifconfig6 command.
  //
  if (ShellCommandLineGetFlag (ParamPackage, L"-?")) {
    ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_IFCONFIG6_HELP), mHiiHandle);
    goto ON_EXIT;
  }

  Status = EFI_INVALID_PARAMETER;

  Private = AllocateZeroPool (sizeof (IFCONFIG6_PRIVATE_DATA));

  if (Private == NULL) {
    Status = EFI_OUT_OF_RESOURCES;
    goto ON_EXIT;
  }

  InitializeListHead (&Private->IfList);

  //
  // To get interface name for the list option.
  //
  if (ShellCommandLineGetFlag (ParamPackage, L"-l")) {
    Private->OpCode = IfConfig6OpList;
    ValueStr = ShellCommandLineGetValue (ParamPackage, L"-l");
    if (ValueStr != NULL) {
      Str             = (CHAR16 *) AllocateZeroPool (StrSize (ValueStr));
      ASSERT (Str != NULL);

      Str             = StrCpy (Str, ValueStr);
      Private->IfName = Str;
    }
  }
  //
  // To get interface name for the clear option.
  //
  if (ShellCommandLineGetFlag (ParamPackage, L"-r")) {
//.........这里部分代码省略.........

int TestInterlockedDList(int argc, char* argv[])
{
	ULONG Count;
	PLIST_ITEM pListItem;
	PLIST_ENTRY pListHead;
	PLIST_ENTRY pListEntry;

	pListHead = (PLIST_ENTRY) _aligned_malloc(sizeof(LIST_ENTRY), MEMORY_ALLOCATION_ALIGNMENT);

	if (!pListHead)
	{
		printf("Memory allocation failed.\n");
		return -1;
	}

	InitializeListHead(pListHead);

	if (!IsListEmpty(pListHead))
	{
		printf("Expected empty list\n");
		return -1;
	}

	/* InsertHeadList / RemoveHeadList */

	printf("InsertHeadList / RemoveHeadList\n");

	for (Count = 1; Count <= 10; Count += 1)
	{
		pListItem = (PLIST_ITEM) _aligned_malloc(sizeof(LIST_ITEM), MEMORY_ALLOCATION_ALIGNMENT);
		pListItem->Signature = Count;
		InsertHeadList(pListHead, &(pListItem->ItemEntry));
	}

	for (Count = 10; Count >= 1; Count -= 1)
	{
		pListEntry = RemoveHeadList(pListHead);
		pListItem = (PLIST_ITEM) pListEntry;
		_aligned_free(pListEntry);
	}

	/* InsertTailList / RemoveTailList */

	printf("InsertTailList / RemoveTailList\n");

	for (Count = 1; Count <= 10; Count += 1)
	{
		pListItem = (PLIST_ITEM) _aligned_malloc(sizeof(LIST_ITEM), MEMORY_ALLOCATION_ALIGNMENT);
		pListItem->Signature = Count;
		InsertTailList(pListHead, &(pListItem->ItemEntry));
	}

	for (Count = 10; Count >= 1; Count -= 1)
	{
		pListEntry = RemoveTailList(pListHead);
		pListItem = (PLIST_ITEM) pListEntry;
		_aligned_free(pListEntry);
	}

	_aligned_free(pListHead);

	return 0;
}

/**
  Opens a new file relative to the source file's location.

  @param  This       A pointer to the EFI_FILE_PROTOCOL instance that is the file
                     handle to the source location. This would typically be an open
                     handle to a directory.
  @param  NewHandle  A pointer to the location to return the opened handle for the new
                     file.
  @param  FileName   The Null-terminated string of the name of the file to be opened.
                     The file name may contain the following path modifiers: "\", ".",
                     and "..".
  @param  OpenMode   The mode to open the file. The only valid combinations that the
                     file may be opened with are: Read, Read/Write, or Create/Read/Write.
  @param  Attributes Only valid for EFI_FILE_MODE_CREATE, in which case these are the
                     attribute bits for the newly created file.

  @retval EFI_SUCCESS          The file was opened.
  @retval EFI_NOT_FOUND        The specified file could not be found on the device.
  @retval EFI_NO_MEDIA         The device has no medium.
  @retval EFI_MEDIA_CHANGED    The device has a different medium in it or the medium is no
                               longer supported.
  @retval EFI_DEVICE_ERROR     The device reported an error.
  @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted.
  @retval EFI_WRITE_PROTECTED  An attempt was made to create a file, or open a file for write
                               when the media is write-protected.
  @retval EFI_ACCESS_DENIED    The service denied access to the file.
  @retval EFI_OUT_OF_RESOURCES Not enough resources were available to open the file.
  @retval EFI_VOLUME_FULL      The volume is full.

**/
EFI_STATUS
EFIAPI
FvSimpleFileSystemOpen (
  IN     EFI_FILE_PROTOCOL    *This,
     OUT EFI_FILE_PROTOCOL    **NewHandle,
  IN     CHAR16               *FileName,
  IN     UINT64               OpenMode,
  IN     UINT64               Attributes
  )
{
  FV_FILESYSTEM_INSTANCE      *Instance;
  FV_FILESYSTEM_FILE          *File;
  FV_FILESYSTEM_FILE          *NewFile;
  FV_FILESYSTEM_FILE_INFO     *FvFileInfo;
  LIST_ENTRY                  *FvFileInfoLink;
  EFI_STATUS                  Status;
  UINTN                       FileNameLength;
  UINTN                       NewFileNameLength;
  CHAR16                      *FileNameWithExtension;

  //
  // Check for a valid mode
  //
  switch (OpenMode) {
  case EFI_FILE_MODE_READ:
    break;

  default:
    return EFI_WRITE_PROTECTED;
  }

  File = FVFS_FILE_FROM_FILE_THIS (This);
  Instance = File->Instance;

  FileName = TrimFilePathToAbsolutePath (FileName);
  if (FileName == NULL) {
    return EFI_INVALID_PARAMETER;
  }

  if (FileName[0] == L'\\') {
    FileName++;
  }

  //
  // Check for opening root
  //
  if (StrCmp (FileName, L".") == 0 || StrCmp (FileName, L"") == 0) {
    NewFile = AllocateZeroPool (sizeof (FV_FILESYSTEM_FILE));
    if (NewFile == NULL) {
      return EFI_OUT_OF_RESOURCES;
    }
    NewFile->Signature = FVFS_FILE_SIGNATURE;
    NewFile->Instance  = Instance;
    NewFile->FvFileInfo = File->FvFileInfo;
    CopyMem (&NewFile->FileProtocol, &mFileSystemTemplate, sizeof (mFileSystemTemplate));
    InitializeListHead (&NewFile->Link);
    InsertHeadList (&Instance->FileHead, &NewFile->Link);

    NewFile->DirReadNext = NULL;
    if (!IsListEmpty (&Instance->FileInfoHead)) {
      NewFile->DirReadNext = FVFS_GET_FIRST_FILE_INFO (Instance);
    }

    *NewHandle = &NewFile->FileProtocol;
    return EFI_SUCCESS;
  }

  //
  // Do a linear search for a file in the FV with a matching filename
  //
//.........这里部分代码省略.........

LONG
RegCreateKey(FRLDRHKEY ParentKey,
             PCWSTR KeyName,
             PFRLDRHKEY Key)
{
    PLIST_ENTRY Ptr;
    FRLDRHKEY SearchKey = NULL;
    FRLDRHKEY CurrentKey;
    FRLDRHKEY NewKey;
    PWCHAR p;
    PCWSTR name;
    int subkeyLength;
    int stringLength;
    ULONG NameSize;
    int CmpResult;

    TRACE("KeyName '%S'\n", KeyName);

    if (*KeyName == L'\\')
    {
        KeyName++;
        CurrentKey = RootKey;
    }
    else if (ParentKey == NULL)
    {
        CurrentKey = RootKey;
    }
    else
    {
        CurrentKey = ParentKey;
    }

    /* Check whether current key is a link */
    if (CurrentKey->DataType == REG_LINK)
    {
        CurrentKey = (FRLDRHKEY)CurrentKey->Data;
    }

    while (*KeyName != 0)
    {
        TRACE("KeyName '%S'\n", KeyName);

        if (*KeyName == L'\\')
            KeyName++;
        p = wcschr(KeyName, L'\\');
        if ((p != NULL) && (p != KeyName))
        {
            subkeyLength = p - KeyName;
            stringLength = subkeyLength + 1;
            name = KeyName;
        }
        else
        {
            subkeyLength = wcslen(KeyName);
            stringLength = subkeyLength;
            name = KeyName;
        }
        NameSize = (subkeyLength + 1) * sizeof(WCHAR);

        Ptr = CurrentKey->SubKeyList.Flink;
        CmpResult = 1;
        while (Ptr != &CurrentKey->SubKeyList)
        {
            TRACE("Ptr 0x%x\n", Ptr);

            SearchKey = CONTAINING_RECORD(Ptr, KEY, KeyList);
            TRACE("SearchKey 0x%x\n", SearchKey);
            TRACE("Searching '%S'\n", SearchKey->Name);
            CmpResult = _wcsnicmp(SearchKey->Name, name, subkeyLength);

            if (CmpResult == 0 && SearchKey->NameSize == NameSize) break;
            else if (CmpResult == -1) break;

            Ptr = Ptr->Flink;
        }

        if (CmpResult != 0)
        {
            /* no key found -> create new subkey */
            NewKey = MmHeapAlloc(sizeof(KEY));
            if (NewKey == NULL) return ERROR_OUTOFMEMORY;

            InitializeListHead(&NewKey->SubKeyList);
            InitializeListHead(&NewKey->ValueList);

            NewKey->SubKeyCount = 0;
            NewKey->ValueCount = 0;

            NewKey->DataType = 0;
            NewKey->DataSize = 0;
            NewKey->Data = NULL;

            InsertTailList(Ptr, &NewKey->KeyList);
            CurrentKey->SubKeyCount++;

            NewKey->NameSize = NameSize;
            NewKey->Name = (PWCHAR)MmHeapAlloc(NewKey->NameSize);
            if (NewKey->Name == NULL) return ERROR_OUTOFMEMORY;

            memcpy(NewKey->Name, name, NewKey->NameSize - sizeof(WCHAR));
//.........这里部分代码省略.........

EFI_STATUS
FatAllocateVolume (
  IN  EFI_HANDLE                Handle,
  IN  EFI_DISK_IO_PROTOCOL      *DiskIo,
  IN  EFI_BLOCK_IO_PROTOCOL     *BlockIo
  )
/*++

Routine Description:

  Allocates volume structure, detects FAT file system, installs protocol,
  and initialize cache.

Arguments:

  Handle                - The handle of parent device.
  DiskIo                - The DiskIo of parent device.
  BlockIo               - The BlockIo of parent devicel

Returns:

  EFI_SUCCESS           - Allocate a new volume successfully.
  EFI_OUT_OF_RESOURCES  - Can not allocate the memory.
  Others                - Allocating a new volume failed.

--*/
{
  EFI_STATUS  Status;
  FAT_VOLUME  *Volume;

  //
  // Allocate a volume structure
  //
  Volume = AllocateZeroPool (sizeof (FAT_VOLUME));
  if (Volume == NULL) {
    return EFI_OUT_OF_RESOURCES;
  }

  //
  // Initialize the structure
  //
  Volume->Signature                   = FAT_VOLUME_SIGNATURE;
  Volume->Handle                      = Handle;
  Volume->DiskIo                      = DiskIo;
  Volume->BlockIo                     = BlockIo;
  Volume->MediaId                     = BlockIo->Media->MediaId;
  Volume->ReadOnly                    = BlockIo->Media->ReadOnly;
  Volume->VolumeInterface.Revision    = EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_REVISION;
  Volume->VolumeInterface.OpenVolume  = FatOpenVolume;
  InitializeListHead (&Volume->CheckRef);
  InitializeListHead (&Volume->DirCacheList);
  //
  // Initialize Root Directory entry
  //
  Volume->RootDirEnt.FileString       = Volume->RootFileString;
  Volume->RootDirEnt.Entry.Attributes = FAT_ATTRIBUTE_DIRECTORY;
  //
  // Check to see if there's a file system on the volume
  //
  Status = FatOpenDevice (Volume);
  if (EFI_ERROR (Status)) {
    goto Done;
  }
  //
  // Initialize cache
  //
  Status = FatInitializeDiskCache (Volume);
  if (EFI_ERROR (Status)) {
    goto Done;
  }
  //
  // Install our protocol interfaces on the device's handle
  //
  Status = gBS->InstallMultipleProtocolInterfaces (
                  &Volume->Handle,
                  &gEfiSimpleFileSystemProtocolGuid,
                  &Volume->VolumeInterface,
                  NULL
                  );
  if (EFI_ERROR (Status)) {
    goto Done;
  }
  //
  // Volume installed
  //
  DEBUG ((EFI_D_INIT, "Installed Fat filesystem on %p\n", Handle));
  Volume->Valid = TRUE;

Done:
  if (EFI_ERROR (Status)) {
    FatFreeVolume (Volume);
  }

  return Status;
}