iotypes.h

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/*++ NDK Version: 0098
 
Copyright (c) Alex Ionescu.  All rights reserved.
 
Header Name:
 
    iotypes.h
 
Abstract:
 
    Type definitions for the I/O Manager.
 
Author:
 
    Alex Ionescu (alexi@tinykrnl.org) - Updated - 27-Feb-2006
 
--*/
#ifndef _IOTYPES_H
#define _IOTYPES_H
 
//
// Dependencies
//
#include <umtypes.h>
#include <ifssupp.h>
#include <potypes.h>
 
//
// I/O Completion Access Rights
//
#define IO_COMPLETION_QUERY_STATE               0x0001
#ifndef NTOS_MODE_USER
#define IO_COMPLETION_MODIFY_STATE              0x0002
#define IO_COMPLETION_ALL_ACCESS                (STANDARD_RIGHTS_REQUIRED | \
                                                 SYNCHRONIZE | \
                                                 0x3)
 
//
// Kernel Exported Object Types
//
extern POBJECT_TYPE NTSYSAPI IoAdapterObjectType;
extern POBJECT_TYPE NTSYSAPI IoDeviceHandlerObjectType;
extern POBJECT_TYPE NTSYSAPI IoDeviceObjectType;
extern POBJECT_TYPE NTSYSAPI IoDriverObjectType;
 
#else
 
//
// Symbolic Link Access Rights
//
#define SYMBOLIC_LINK_QUERY                     0x0001
#define SYMBOLIC_LINK_ALL_ACCESS                STANDARD_RIGHTS_REQUIRED | 0x0001
#endif
 
#ifdef NTOS_MODE_USER
 
/* File System Attributes Flags */
#define FILE_READ_ONLY_VOLUME 0x00080000
 
#endif
 
//
// NtCreateFile Result Flags
//
#define FILE_SUPERSEDED                         0x00000000
#define FILE_OPENED                             0x00000001
#define FILE_CREATED                            0x00000002
#define FILE_OVERWRITTEN                        0x00000003
#define FILE_EXISTS                             0x00000004
#define FILE_DOES_NOT_EXIST                     0x00000005
 
//
// Pipe Flags
//
#define FILE_PIPE_BYTE_STREAM_TYPE              0x00000000
#define FILE_PIPE_MESSAGE_TYPE                  0x00000001
#define FILE_PIPE_BYTE_STREAM_MODE              0x00000000
#define FILE_PIPE_MESSAGE_MODE                  0x00000001
#define FILE_PIPE_QUEUE_OPERATION               0x00000000
#define FILE_PIPE_COMPLETE_OPERATION            0x00000001
#define FILE_PIPE_INBOUND                       0x00000000
#define FILE_PIPE_OUTBOUND                      0x00000001
#define FILE_PIPE_FULL_DUPLEX                   0x00000002
#define FILE_PIPE_CLIENT_END                    0x00000000
#define FILE_PIPE_SERVER_END                    0x00000001
 
//
// NtCreateFile Attributes
//
#define FILE_ATTRIBUTE_VALID_FLAGS              0x00007fb7
#define FILE_ATTRIBUTE_VALID_SET_FLAGS          0x000031a7
 
//
// NtCreateFile OpenType Flags
//
#define FILE_SUPERSEDE                          0x00000000
#define FILE_OPEN                               0x00000001
#define FILE_CREATE                             0x00000002
#define FILE_OPEN_IF                            0x00000003
#define FILE_OVERWRITE                          0x00000004
#define FILE_OVERWRITE_IF                       0x00000005
#define FILE_MAXIMUM_DISPOSITION                0x00000005
 
//
// NtCreateFile Flags
//
#define FILE_DIRECTORY_FILE                     0x00000001
#define FILE_WRITE_THROUGH                      0x00000002
#define FILE_SEQUENTIAL_ONLY                    0x00000004
#define FILE_NO_INTERMEDIATE_BUFFERING          0x00000008
#define FILE_SYNCHRONOUS_IO_ALERT               0x00000010
#define FILE_SYNCHRONOUS_IO_NONALERT            0x00000020
#define FILE_NON_DIRECTORY_FILE                 0x00000040
#define FILE_CREATE_TREE_CONNECTION             0x00000080
#define FILE_COMPLETE_IF_OPLOCKED               0x00000100
#define FILE_NO_EA_KNOWLEDGE                    0x00000200
#define FILE_OPEN_REMOTE_INSTANCE               0x00000400
#define FILE_RANDOM_ACCESS                      0x00000800
#define FILE_DELETE_ON_CLOSE                    0x00001000
#define FILE_OPEN_BY_FILE_ID                    0x00002000
#define FILE_OPEN_FOR_BACKUP_INTENT             0x00004000
#define FILE_NO_COMPRESSION                     0x00008000
#define FILE_RESERVE_OPFILTER                   0x00100000
#define FILE_OPEN_REPARSE_POINT                 0x00200000
#define FILE_OPEN_NO_RECALL                     0x00400000
#define FILE_OPEN_FOR_FREE_SPACE_QUERY          0x00800000
 
//
// Device Charactertics
//
#define FILE_REMOVABLE_MEDIA                    0x00000001
#define FILE_READ_ONLY_DEVICE                   0x00000002
#define FILE_FLOPPY_DISKETTE                    0x00000004
#define FILE_WRITE_ONCE_MEDIA                   0x00000008
#define FILE_REMOTE_DEVICE                      0x00000010
#define FILE_DEVICE_IS_MOUNTED                  0x00000020
#define FILE_VIRTUAL_VOLUME                     0x00000040
#define FILE_AUTOGENERATED_DEVICE_NAME          0x00000080
#define FILE_DEVICE_SECURE_OPEN                 0x00000100
 
//
// File Object Flags
//
#define FO_FILE_OBJECT_HAS_EXTENSION            0x00800000
 
//
// Device Object Extension Flags
//
#define DOE_UNLOAD_PENDING                      0x1
#define DOE_DELETE_PENDING                      0x2
#define DOE_REMOVE_PENDING                      0x4
#define DOE_REMOVE_PROCESSED                    0x8
#define DOE_START_PENDING                       0x10
 
//
// Device Object StartIo Flags
//
#define DOE_SIO_NO_KEY                          0x20
#define DOE_SIO_WITH_KEY                        0x40
#define DOE_SIO_CANCELABLE                      0x80
#define DOE_SIO_DEFERRED                        0x100
#define DOE_SIO_NO_CANCEL                       0x200
 
//
// Device Node Flags
//
 
// this set of flags is relevant for w2k3 and newer
// w2k has a completely different set of flags
#define DNF_MADEUP                              0x00000001
#define DNF_DUPLICATE                           0x00000002
#define DNF_HAL_NODE                            0x00000004
#define DNF_REENUMERATE                         0x00000008
#define DNF_ENUMERATED                          0x00000010
#define DNF_IDS_QUERIED                         0x00000020
#define DNF_HAS_BOOT_CONFIG                     0x00000040
#define DNF_BOOT_CONFIG_RESERVED                0x00000080
#define DNF_NO_RESOURCE_REQUIRED                0x00000100
#define DNF_RESOURCE_REQUIREMENTS_NEED_FILTERED 0x00000200
#define DNF_RESOURCE_REQUIREMENTS_CHANGED       0x00000400
#define DNF_NON_STOPPED_REBALANCE               0x00000800
#define DNF_LEGACY_DRIVER                       0x00001000
#define DNF_HAS_PROBLEM                         0x00002000
#define DNF_HAS_PRIVATE_PROBLEM                 0x00004000
#define DNF_HARDWARE_VERIFICATION               0x00008000
#define DNF_DEVICE_GONE                         0x00010000
#define DNF_LEGACY_RESOURCE_DEVICENODE          0x00020000
#define DNF_NEEDS_REBALANCE                     0x00040000
#define DNF_LOCKED_FOR_EJECT                    0x00080000
#define DNF_DRIVER_BLOCKED                      0x00100000
#define DNF_CHILD_WITH_INVALID_ID               0x00200000
 
// these flags were added in Vista or later
#define DNF_ASYNC_START_NOT_SUPPORTED           0x00400000
#define DNF_ASYNC_ENUMERATION_NOT_SUPPORTED     0x00800000
#define DNF_LOCKED_FOR_REBALANCE                0x01000000
#define DNF_UNINSTALLED                         0x02000000
#define DNF_NO_LOWER_DEVICE_FILTERS             0x04000000
#define DNF_NO_LOWER_CLASS_FILTERS              0x08000000
#define DNF_NO_SERVICE                          0x10000000
#define DNF_NO_UPPER_DEVICE_FILTERS             0x20000000
#define DNF_NO_UPPER_CLASS_FILTERS              0x40000000
#define DNF_WAITING_FOR_FDO                     0x80000000
 
//
// Device Node User Flags
//
#define DNUF_WILL_BE_REMOVED                    0x0001
#define DNUF_DONT_SHOW_IN_UI                    0x0002
#define DNUF_NEED_RESTART                       0x0004
#define DNUF_NOT_DISABLEABLE                    0x0008
#define DNUF_SHUTDOWN_QUERIED                   0x0010
#define DNUF_SHUTDOWN_SUBTREE_DONE              0x0020
 
//
// Internal Option Flags
//
#define IO_ATTACH_DEVICE_API                    0x80000000
 
//
// Undocumented WMI Registration Flags
//
#define WMIREG_FLAG_TRACE_PROVIDER              0x00010000
#define WMIREG_FLAG_TRACE_NOTIFY_MASK           0x00F00000
#define WMIREG_NOTIFY_DISK_IO                   0x00100000
#define WMIREG_NOTIFY_TDI_IO                    0x00200000
 
//
// I/O Completion Information Class for NtQueryIoCompletionInformation
//
typedef enum _IO_COMPLETION_INFORMATION_CLASS
{
    IoCompletionBasicInformation
} IO_COMPLETION_INFORMATION_CLASS;
 
#ifdef NTOS_MODE_USER
 
//
// Hardware Interface Type
//
typedef enum _INTERFACE_TYPE
{
    InterfaceTypeUndefined = -1,
    Internal,
    Isa,
    Eisa,
    MicroChannel,
    TurboChannel,
    PCIBus,
    VMEBus,
    NuBus,
    PCMCIABus,
    CBus,
    MPIBus,
    MPSABus,
    ProcessorInternal,
    InternalPowerBus,
    PNPISABus,
    PNPBus,
    MaximumInterfaceType
}INTERFACE_TYPE, *PINTERFACE_TYPE;
 
typedef enum _BUS_DATA_TYPE
{
    ConfigurationSpaceUndefined = -1,
    Cmos,
    EisaConfiguration,
    Pos,
    CbusConfiguration,
    PCIConfiguration,
    VMEConfiguration,
    NuBusConfiguration,
    PCMCIAConfiguration,
    MPIConfiguration,
    MPSAConfiguration,
    PNPISAConfiguration,
    SgiInternalConfiguration,
    MaximumBusDataType
} BUS_DATA_TYPE, *PBUS_DATA_TYPE;
 
#if defined(NT_PROCESSOR_GROUPS)
 
typedef USHORT IRQ_DEVICE_POLICY, *PIRQ_DEVICE_POLICY;
 
enum _IRQ_DEVICE_POLICY_USHORT {
  IrqPolicyMachineDefault = 0,
  IrqPolicyAllCloseProcessors = 1,
  IrqPolicyOneCloseProcessor = 2,
  IrqPolicyAllProcessorsInMachine = 3,
  IrqPolicyAllProcessorsInGroup = 3,
  IrqPolicySpecifiedProcessors = 4,
  IrqPolicySpreadMessagesAcrossAllProcessors = 5};
 
#else /* defined(NT_PROCESSOR_GROUPS) */
 
typedef enum _IRQ_DEVICE_POLICY {
  IrqPolicyMachineDefault = 0,
  IrqPolicyAllCloseProcessors,
  IrqPolicyOneCloseProcessor,
  IrqPolicyAllProcessorsInMachine,
  IrqPolicySpecifiedProcessors,
  IrqPolicySpreadMessagesAcrossAllProcessors
} IRQ_DEVICE_POLICY, *PIRQ_DEVICE_POLICY;
 
#endif
 
typedef enum _IRQ_PRIORITY {
  IrqPriorityUndefined = 0,
  IrqPriorityLow,
  IrqPriorityNormal,
  IrqPriorityHigh
} IRQ_PRIORITY, *PIRQ_PRIORITY;
 
#define IO_RESOURCE_PREFERRED             0x01
#define IO_RESOURCE_DEFAULT               0x02
#define IO_RESOURCE_ALTERNATIVE           0x08
 
typedef struct _IO_RESOURCE_DESCRIPTOR {
  UCHAR Option;
  UCHAR Type;
  UCHAR ShareDisposition;
  UCHAR Spare1;
  USHORT Flags;
  USHORT Spare2;
  union {
    struct {
      ULONG Length;
      ULONG Alignment;
      PHYSICAL_ADDRESS MinimumAddress;
      PHYSICAL_ADDRESS MaximumAddress;
    } Port;
    struct {
      ULONG Length;
      ULONG Alignment;
      PHYSICAL_ADDRESS MinimumAddress;
      PHYSICAL_ADDRESS MaximumAddress;
    } Memory;
    struct {
      ULONG MinimumVector;
      ULONG MaximumVector;
#if defined(NT_PROCESSOR_GROUPS)
      IRQ_DEVICE_POLICY AffinityPolicy;
      USHORT Group;
#else
      IRQ_DEVICE_POLICY AffinityPolicy;
#endif
      IRQ_PRIORITY PriorityPolicy;
      KAFFINITY TargetedProcessors;
    } Interrupt;
    struct {
      ULONG MinimumChannel;
      ULONG MaximumChannel;
    } Dma;
    struct {
      ULONG Length;
      ULONG Alignment;
      PHYSICAL_ADDRESS MinimumAddress;
      PHYSICAL_ADDRESS MaximumAddress;
    } Generic;
    struct {
      ULONG Data[3];
    } DevicePrivate;
    struct {
      ULONG Length;
      ULONG MinBusNumber;
      ULONG MaxBusNumber;
      ULONG Reserved;
    } BusNumber;
    struct {
      ULONG Priority;
      ULONG Reserved1;
      ULONG Reserved2;
    } ConfigData;
  } u;
} IO_RESOURCE_DESCRIPTOR, *PIO_RESOURCE_DESCRIPTOR;
 
typedef struct _IO_RESOURCE_LIST {
  USHORT Version;
  USHORT Revision;
  ULONG Count;
  IO_RESOURCE_DESCRIPTOR Descriptors[1];
} IO_RESOURCE_LIST, *PIO_RESOURCE_LIST;
 
typedef struct _IO_RESOURCE_REQUIREMENTS_LIST {
  ULONG ListSize;
  INTERFACE_TYPE InterfaceType;
  ULONG BusNumber;
  ULONG SlotNumber;
  ULONG Reserved[3];
  ULONG AlternativeLists;
  IO_RESOURCE_LIST List[1];
} IO_RESOURCE_REQUIREMENTS_LIST, *PIO_RESOURCE_REQUIREMENTS_LIST;
 
//
// File Information Classes for NtQueryInformationFile
//
typedef enum _FILE_INFORMATION_CLASS
{
    FileDirectoryInformation = 1,
    FileFullDirectoryInformation = 2,
    FileBothDirectoryInformation = 3,
    FileBasicInformation = 4,
    FileStandardInformation = 5,
    FileInternalInformation = 6,
    FileEaInformation = 7,
    FileAccessInformation = 8,
    FileNameInformation = 9,
    FileRenameInformation = 10,
    FileLinkInformation = 11,
    FileNamesInformation = 12,
    FileDispositionInformation = 13,
    FilePositionInformation = 14,
    FileFullEaInformation = 15,
    FileModeInformation = 16,
    FileAlignmentInformation = 17,
    FileAllInformation = 18,
    FileAllocationInformation = 19,
    FileEndOfFileInformation = 20,
    FileAlternateNameInformation = 21,
    FileStreamInformation = 22,
    FilePipeInformation = 23,
    FilePipeLocalInformation = 24,
    FilePipeRemoteInformation = 25,
    FileMailslotQueryInformation = 26,
    FileMailslotSetInformation = 27,
    FileCompressionInformation = 28,
    FileObjectIdInformation = 29,
    FileCompletionInformation = 30,
    FileMoveClusterInformation = 31,
    FileQuotaInformation = 32,
    FileReparsePointInformation = 33,
    FileNetworkOpenInformation = 34,
    FileAttributeTagInformation = 35,
    FileTrackingInformation = 36,
    FileIdBothDirectoryInformation = 37,
    FileIdFullDirectoryInformation = 38,
    FileValidDataLengthInformation = 39,
    FileShortNameInformation = 40,
    FileIoCompletionNotificationInformation = 41,
#if (NTDDI_VERSION >= NTDDI_VISTA) || defined(__REACTOS__)
    FileIoStatusBlockRangeInformation = 42,
    FileIoPriorityHintInformation = 43,
    FileSfioReserveInformation = 44,
    FileSfioVolumeInformation = 45,
    FileHardLinkInformation = 46,
    FileProcessIdsUsingFileInformation = 47,
    FileNormalizedNameInformation = 48,
    FileNetworkPhysicalNameInformation = 49,
#endif
#if (NTDDI_VERSION >= NTDDI_WIN7) || defined(__REACTOS__)
    FileIdGlobalTxDirectoryInformation = 50,
    FileIsRemoteDeviceInformation = 51,
    FileAttributeCacheInformation = 52, // FileUnusedInformation since Windows 8.1
    FileNumaNodeInformation = 53,
    FileStandardLinkInformation = 54,
    FileRemoteProtocolInformation = 55,
#endif
#if (NTDDI_VERSION >= NTDDI_WIN8) || defined(__REACTOS__)
    FileRenameInformationBypassAccessCheck = 56,
    FileLinkInformationBypassAccessCheck = 57,
    FileVolumeNameInformation = 58,
    FileIdInformation = 59,
    FileIdExtdDirectoryInformation = 60,
#endif
#if (NTDDI_VERSION >= NTDDI_WINBLUE) || defined(__REACTOS__)
    FileReplaceCompletionInformation = 61,
    FileHardLinkFullIdInformation = 62,
    FileIdExtdBothDirectoryInformation = 63, // Update 1
#endif
#if (NTDDI_VERSION >= NTDDI_WIN10_RS1) || defined(__REACTOS__)
    FileDispositionInformationEx = 64,
    FileRenameInformationEx = 65,
    FileRenameInformationExBypassAccessCheck = 66,
#endif
#if (NTDDI_VERSION >= NTDDI_WIN10_RS2) || defined(__REACTOS__)
    FileDesiredStorageClassInformation = 67,
    FileStatInformation = 68,
#endif
#if (NTDDI_VERSION >= NTDDI_WIN10_RS3) || defined(__REACTOS__)
    FileMemoryPartitionInformation = 69,
#endif
#if (NTDDI_VERSION >= NTDDI_WIN10_RS4) || defined(__REACTOS__)
    FileStatLxInformation = 70,
    FileCaseSensitiveInformation = 71,
#endif
#if (NTDDI_VERSION >= NTDDI_WIN10_RS5) || defined(__REACTOS__)
    FileLinkInformationEx = 72,
    FileLinkInformationExBypassAccessCheck = 73,
    FileStorageReserveIdInformation = 74,
    FileCaseSensitiveInformationForceAccessCheck = 75,
#endif
#if (NTDDI_VERSION >= NTDDI_WIN11) || defined(__REACTOS__) // 10.0.20150.1000
    FileKnownFolderInformation = 76,
#endif
    FileMaximumInformation
} FILE_INFORMATION_CLASS, *PFILE_INFORMATION_CLASS;
 
//
// File Information Classes for NtQueryInformationFileSystem
//
typedef enum _FSINFOCLASS
{
    FileFsVolumeInformation = 1,
    FileFsLabelInformation,
    FileFsSizeInformation,
    FileFsDeviceInformation,
    FileFsAttributeInformation,
    FileFsControlInformation,
    FileFsFullSizeInformation,
    FileFsObjectIdInformation,
    FileFsDriverPathInformation,
    FileFsMaximumInformation
} FS_INFORMATION_CLASS, *PFS_INFORMATION_CLASS;
 
#endif
 
//
// Dock Profile Status
//
typedef enum _PROFILE_STATUS
{
    DOCK_NOTDOCKDEVICE,
    DOCK_QUIESCENT,
    DOCK_ARRIVING,
    DOCK_DEPARTING,
    DOCK_EJECTIRP_COMPLETED
} PROFILE_STATUS, *PPROFILE_STATUS;
 
//
// Device Node States
//
typedef enum _PNP_DEVNODE_STATE
{
    DeviceNodeUnspecified = 0x300,
    DeviceNodeUninitialized = 0x301,
    DeviceNodeInitialized = 0x302,
    DeviceNodeDriversAdded = 0x303,
    DeviceNodeResourcesAssigned = 0x304,
    DeviceNodeStartPending = 0x305,
    DeviceNodeStartCompletion = 0x306,
    DeviceNodeStartPostWork = 0x307,
    DeviceNodeStarted = 0x308,
    DeviceNodeQueryStopped = 0x309,
    DeviceNodeStopped = 0x30a,
    DeviceNodeRestartCompletion = 0x30b,
    DeviceNodeEnumeratePending = 0x30c,
    DeviceNodeEnumerateCompletion = 0x30d,
    DeviceNodeAwaitingQueuedDeletion = 0x30e,
    DeviceNodeAwaitingQueuedRemoval = 0x30f,
    DeviceNodeQueryRemoved = 0x310,
    DeviceNodeRemovePendingCloses = 0x311,
    DeviceNodeRemoved = 0x312,
    DeviceNodeDeletePendingCloses = 0x313,
    DeviceNodeDeleted = 0x314,
    MaxDeviceNodeState = 0x315,
} PNP_DEVNODE_STATE;
 
#ifdef NTOS_MODE_USER
 
//
// I/O Status Block
//
typedef struct _IO_STATUS_BLOCK
{
    union
    {
        NTSTATUS Status;
        PVOID Pointer;
    };
    ULONG_PTR Information;
} IO_STATUS_BLOCK, *PIO_STATUS_BLOCK;
 
//
// File Information structures for NtQueryInformationFile
//
typedef struct _FILE_BASIC_INFORMATION
{
    LARGE_INTEGER CreationTime;
    LARGE_INTEGER LastAccessTime;
    LARGE_INTEGER LastWriteTime;
    LARGE_INTEGER ChangeTime;
    ULONG FileAttributes;
} FILE_BASIC_INFORMATION, *PFILE_BASIC_INFORMATION;
 
typedef struct _FILE_STANDARD_INFORMATION
{
    LARGE_INTEGER AllocationSize;
    LARGE_INTEGER EndOfFile;
    ULONG NumberOfLinks;
    BOOLEAN DeletePending;
    BOOLEAN Directory;
} FILE_STANDARD_INFORMATION, *PFILE_STANDARD_INFORMATION;
 
typedef struct _FILE_STREAM_INFORMATION
{
    ULONG NextEntryOffset;
    ULONG StreamNameLength;
    LARGE_INTEGER StreamSize;
    LARGE_INTEGER StreamAllocationSize;
    WCHAR StreamName[1];
} FILE_STREAM_INFORMATION, *PFILE_STREAM_INFORMATION;
 
typedef struct _FILE_NETWORK_OPEN_INFORMATION
{
    LARGE_INTEGER CreationTime;
    LARGE_INTEGER LastAccessTime;
    LARGE_INTEGER LastWriteTime;
    LARGE_INTEGER ChangeTime;
    LARGE_INTEGER AllocationSize;
    LARGE_INTEGER EndOfFile;
    ULONG FileAttributes;
} FILE_NETWORK_OPEN_INFORMATION, *PFILE_NETWORK_OPEN_INFORMATION;
 
typedef struct _FILE_EA_INFORMATION
{
    ULONG EaSize;
} FILE_EA_INFORMATION, *PFILE_EA_INFORMATION;
 
typedef struct _FILE_ACCESS_INFORMATION
{
    ACCESS_MASK AccessFlags;
} FILE_ACCESS_INFORMATION, *PFILE_ACCESS_INFORMATION;
 
typedef struct _FILE_COMPRESSION_INFORMATION
{
    LARGE_INTEGER CompressedFileSize;
    USHORT CompressionFormat;
    UCHAR CompressionUnitShift;
    UCHAR ChunkShift;
    UCHAR ClusterShift;
    UCHAR Reserved[3];
} FILE_COMPRESSION_INFORMATION, *PFILE_COMPRESSION_INFORMATION;
 
typedef struct _FILE_POSITION_INFORMATION
{
  LARGE_INTEGER CurrentByteOffset;
} FILE_POSITION_INFORMATION, *PFILE_POSITION_INFORMATION;
 
typedef struct _FILE_DISPOSITION_INFORMATION
{
    BOOLEAN DeleteFile;
} FILE_DISPOSITION_INFORMATION, *PFILE_DISPOSITION_INFORMATION;
 
typedef struct _FILE_FULL_EA_INFORMATION
{
    ULONG NextEntryOffset;
    UCHAR Flags;
    UCHAR EaNameLength;
    USHORT EaValueLength;
    CHAR EaName[1];
} FILE_FULL_EA_INFORMATION, *PFILE_FULL_EA_INFORMATION;
 
typedef struct _FILE_QUOTA_INFORMATION
{
    ULONG NextEntryOffset;
    ULONG SidLength;
    LARGE_INTEGER ChangeTime;
    LARGE_INTEGER QuotaUsed;
    LARGE_INTEGER QuotaThreshold;
    LARGE_INTEGER QuotaLimit;
    SID Sid;
} FILE_QUOTA_INFORMATION, *PFILE_QUOTA_INFORMATION;
 
typedef struct _FILE_INTERNAL_INFORMATION
{
    LARGE_INTEGER IndexNumber;
} FILE_INTERNAL_INFORMATION, *PFILE_INTERNAL_INFORMATION;
 
typedef struct _FILE_RENAME_INFORMATION
{
    BOOLEAN ReplaceIfExists;
    HANDLE  RootDirectory;
    ULONG FileNameLength;
    WCHAR FileName[1];
} FILE_RENAME_INFORMATION, *PFILE_RENAME_INFORMATION;
 
typedef struct _FILE_PIPE_INFORMATION
{
    ULONG ReadMode;
    ULONG CompletionMode;
} FILE_PIPE_INFORMATION, *PFILE_PIPE_INFORMATION;
 
typedef struct _FILE_PIPE_LOCAL_INFORMATION
{
    ULONG NamedPipeType;
    ULONG NamedPipeConfiguration;
    ULONG MaximumInstances;
    ULONG CurrentInstances;
    ULONG InboundQuota;
    ULONG ReadDataAvailable;
    ULONG OutboundQuota;
    ULONG WriteQuotaAvailable;
    ULONG NamedPipeState;
    ULONG NamedPipeEnd;
} FILE_PIPE_LOCAL_INFORMATION, *PFILE_PIPE_LOCAL_INFORMATION;
 
typedef struct _FILE_PIPE_REMOTE_INFORMATION
{
    LARGE_INTEGER CollectDataTime;
    ULONG MaximumCollectionCount;
} FILE_PIPE_REMOTE_INFORMATION, *PFILE_PIPE_REMOTE_INFORMATION;
 
typedef struct _FILE_MAILSLOT_QUERY_INFORMATION
{
    ULONG MaximumMessageSize;
    ULONG MailslotQuota;
    ULONG NextMessageSize;
    ULONG MessagesAvailable;
    LARGE_INTEGER ReadTimeout;
} FILE_MAILSLOT_QUERY_INFORMATION, *PFILE_MAILSLOT_QUERY_INFORMATION;
 
typedef struct _FILE_MAILSLOT_SET_INFORMATION
{
    PLARGE_INTEGER ReadTimeout;
} FILE_MAILSLOT_SET_INFORMATION, *PFILE_MAILSLOT_SET_INFORMATION;
 
typedef struct _FILE_FULL_DIR_INFORMATION
{
    ULONG NextEntryOffset;
    ULONG FileIndex;
    LARGE_INTEGER CreationTime;
    LARGE_INTEGER LastAccessTime;
    LARGE_INTEGER LastWriteTime;
    LARGE_INTEGER ChangeTime;
    LARGE_INTEGER EndOfFile;
    LARGE_INTEGER AllocationSize;
    ULONG FileAttributes;
    ULONG FileNameLength;
    ULONG EaSize;
    WCHAR FileName[1];
} FILE_FULL_DIR_INFORMATION, *PFILE_FULL_DIR_INFORMATION;
 
typedef struct _FILE_BOTH_DIR_INFORMATION
{
    ULONG NextEntryOffset;
    ULONG FileIndex;
    LARGE_INTEGER CreationTime;
    LARGE_INTEGER LastAccessTime;
    LARGE_INTEGER LastWriteTime;
    LARGE_INTEGER ChangeTime;
    LARGE_INTEGER EndOfFile;
    LARGE_INTEGER AllocationSize;
    ULONG FileAttributes;
    ULONG FileNameLength;
    ULONG EaSize;
    CCHAR ShortNameLength;
    WCHAR ShortName[12];
    WCHAR FileName[1];
} FILE_BOTH_DIR_INFORMATION, *PFILE_BOTH_DIR_INFORMATION;
 
typedef struct _FILE_COMPLETION_INFORMATION
{
    HANDLE Port;
    PVOID Key;
} FILE_COMPLETION_INFORMATION, *PFILE_COMPLETION_INFORMATION;
 
typedef struct _FILE_IO_COMPLETION_NOTIFICATION_INFORMATION
{
    ULONG Flags;
} FILE_IO_COMPLETION_NOTIFICATION_INFORMATION, *PFILE_IO_COMPLETION_NOTIFICATION_INFORMATION;
 
typedef struct _FILE_LINK_INFORMATION
{
    BOOLEAN ReplaceIfExists;
    HANDLE RootDirectory;
    ULONG FileNameLength;
    WCHAR FileName[1];
} FILE_LINK_INFORMATION, *PFILE_LINK_INFORMATION;
 
typedef struct _FILE_NAME_INFORMATION
{
    ULONG FileNameLength;
    WCHAR FileName[1];
} FILE_NAME_INFORMATION, *PFILE_NAME_INFORMATION;
 
typedef struct _FILE_ALLOCATION_INFORMATION
{
    LARGE_INTEGER AllocationSize;
} FILE_ALLOCATION_INFORMATION, *PFILE_ALLOCATION_INFORMATION;
 
typedef struct _FILE_END_OF_FILE_INFORMATION
{
    LARGE_INTEGER EndOfFile;
} FILE_END_OF_FILE_INFORMATION, *PFILE_END_OF_FILE_INFORMATION;
 
typedef struct _FILE_VALID_DATA_LENGTH_INFORMATION
{
    LARGE_INTEGER ValidDataLength;
} FILE_VALID_DATA_LENGTH_INFORMATION, *PFILE_VALID_DATA_LENGTH_INFORMATION;
 
typedef struct _FILE_DIRECTORY_INFORMATION
{
    ULONG NextEntryOffset;
    ULONG FileIndex;
    LARGE_INTEGER CreationTime;
    LARGE_INTEGER LastAccessTime;
    LARGE_INTEGER LastWriteTime;
    LARGE_INTEGER ChangeTime;
    LARGE_INTEGER EndOfFile;
    LARGE_INTEGER AllocationSize;
    ULONG FileAttributes;
    ULONG FileNameLength;
    WCHAR FileName[1];
} FILE_DIRECTORY_INFORMATION, *PFILE_DIRECTORY_INFORMATION;
 
typedef struct _FILE_IO_COMPLETION_INFORMATION
{
    PVOID KeyContext;
    PVOID ApcContext;
    IO_STATUS_BLOCK IoStatusBlock;
} FILE_IO_COMPLETION_INFORMATION, *PFILE_IO_COMPLETION_INFORMATION;
 
typedef struct _FILE_ATTRIBUTE_TAG_INFORMATION
{
    ULONG FileAttributes;
    ULONG ReparseTag;
} FILE_ATTRIBUTE_TAG_INFORMATION, *PFILE_ATTRIBUTE_TAG_INFORMATION;
 
typedef struct _FILE_TRACKING_INFORMATION
{
    HANDLE DestinationFile;
    ULONG ObjectInformationLength;
    CHAR ObjectInformation[1];
} FILE_TRACKING_INFORMATION, *PFILE_TRACKING_INFORMATION;
 
//
// File System Information structures for NtQueryInformationFile
//
typedef struct _FILE_FS_DEVICE_INFORMATION
{
    DEVICE_TYPE DeviceType;
    ULONG Characteristics;
} FILE_FS_DEVICE_INFORMATION, *PFILE_FS_DEVICE_INFORMATION;
 
typedef struct _FILE_FS_ATTRIBUTE_INFORMATION
{
    ULONG FileSystemAttributes;
    ULONG MaximumComponentNameLength;
    ULONG FileSystemNameLength;
    WCHAR FileSystemName[1];
} FILE_FS_ATTRIBUTE_INFORMATION, *PFILE_FS_ATTRIBUTE_INFORMATION;
 
typedef struct _FILE_FS_SIZE_INFORMATION
{
    LARGE_INTEGER TotalAllocationUnits;
    LARGE_INTEGER AvailableAllocationUnits;
    ULONG SectorsPerAllocationUnit;
    ULONG BytesPerSector;
} FILE_FS_SIZE_INFORMATION, *PFILE_FS_SIZE_INFORMATION;
 
typedef struct _FILE_FS_FULL_SIZE_INFORMATION
{
    LARGE_INTEGER   TotalAllocationUnits;
    LARGE_INTEGER   CallerAvailableAllocationUnits;
    LARGE_INTEGER   ActualAvailableAllocationUnits;
    ULONG           SectorsPerAllocationUnit;
    ULONG           BytesPerSector;
} FILE_FS_FULL_SIZE_INFORMATION, *PFILE_FS_FULL_SIZE_INFORMATION;
 
typedef struct _FILE_FS_LABEL_INFORMATION
{
    ULONG VolumeLabelLength;
    WCHAR VolumeLabel[1];
} FILE_FS_LABEL_INFORMATION, *PFILE_FS_LABEL_INFORMATION;
 
typedef struct _FILE_FS_VOLUME_INFORMATION
{
    LARGE_INTEGER VolumeCreationTime;
    ULONG VolumeSerialNumber;
    ULONG VolumeLabelLength;
    BOOLEAN SupportsObjects;
    WCHAR VolumeLabel[1];
} FILE_FS_VOLUME_INFORMATION, *PFILE_FS_VOLUME_INFORMATION;
 
//
// Pipe Structures for IOCTL_PIPE_XXX
//
typedef struct _FILE_PIPE_WAIT_FOR_BUFFER
{
    LARGE_INTEGER Timeout;
    ULONG NameLength;
    BOOLEAN TimeoutSpecified;
    WCHAR Name[1];
} FILE_PIPE_WAIT_FOR_BUFFER, *PFILE_PIPE_WAIT_FOR_BUFFER;
 
typedef struct _FILE_PIPE_PEEK_BUFFER
{
    ULONG NamedPipeState;
    ULONG ReadDataAvailable;
    ULONG NumberOfMessages;
    ULONG MessageLength;
    CHAR Data[1];
} FILE_PIPE_PEEK_BUFFER, *PFILE_PIPE_PEEK_BUFFER;
 
typedef struct _FILE_MODE_INFORMATION
{
    ULONG Mode;
} FILE_MODE_INFORMATION, *PFILE_MODE_INFORMATION;
 
//
// I/O Error Log Structures
//
typedef struct _IO_ERROR_LOG_PACKET
{
    UCHAR MajorFunctionCode;
    UCHAR RetryCount;
    USHORT DumpDataSize;
    USHORT NumberOfStrings;
    USHORT StringOffset;
    USHORT EventCategory;
    NTSTATUS ErrorCode;
    ULONG UniqueErrorValue;
    NTSTATUS FinalStatus;
    ULONG SequenceNumber;
    ULONG IoControlCode;
    LARGE_INTEGER DeviceOffset;
    ULONG DumpData[1];
} IO_ERROR_LOG_PACKET, *PIO_ERROR_LOG_PACKET;
 
typedef struct _IO_ERROR_LOG_MESSAGE
{
    USHORT Type;
    USHORT Size;
    USHORT DriverNameLength;
    LARGE_INTEGER TimeStamp;
    ULONG DriverNameOffset;
    IO_ERROR_LOG_PACKET EntryData;
} IO_ERROR_LOG_MESSAGE, *PIO_ERROR_LOG_MESSAGE;
 
#endif
 
//
// I/O Completion Information structures
//
typedef struct _IO_COMPLETION_BASIC_INFORMATION
{
    LONG Depth;
} IO_COMPLETION_BASIC_INFORMATION, *PIO_COMPLETION_BASIC_INFORMATION;
 
//
// Parameters for NtCreateMailslotFile/NtCreateNamedPipeFile
//
typedef struct _MAILSLOT_CREATE_PARAMETERS
{
    ULONG MailslotQuota;
    ULONG MaximumMessageSize;
    LARGE_INTEGER ReadTimeout;
    BOOLEAN TimeoutSpecified;
} MAILSLOT_CREATE_PARAMETERS, *PMAILSLOT_CREATE_PARAMETERS;
 
typedef struct _NAMED_PIPE_CREATE_PARAMETERS
{
    ULONG NamedPipeType;
    ULONG ReadMode;
    ULONG CompletionMode;
    ULONG MaximumInstances;
    ULONG InboundQuota;
    ULONG OutboundQuota;
    LARGE_INTEGER DefaultTimeout;
    BOOLEAN TimeoutSpecified;
} NAMED_PIPE_CREATE_PARAMETERS, *PNAMED_PIPE_CREATE_PARAMETERS;
 
#ifndef NTOS_MODE_USER
 
//
// I/O Timer Object
//
typedef struct _IO_TIMER
{
    USHORT Type;
    USHORT TimerEnabled;
    LIST_ENTRY IoTimerList;
    PIO_TIMER_ROUTINE TimerRoutine;
    PVOID Context;
    PDEVICE_OBJECT DeviceObject;
} IO_TIMER;
 
//
// Driver Extension
//
typedef struct _IO_CLIENT_EXTENSION
{
    struct _IO_CLIENT_EXTENSION *NextExtension;
    PVOID ClientIdentificationAddress;
} IO_CLIENT_EXTENSION, *PIO_CLIENT_EXTENSION;
 
#define DEVNODE_HISTORY_SIZE 20
 
//
// Device Node
//
typedef struct _DEVICE_NODE
{
    struct _DEVICE_NODE *Sibling;
    struct _DEVICE_NODE *Child;
    struct _DEVICE_NODE *Parent;
    struct _DEVICE_NODE *LastChild;
    ULONG Level;
    struct _PO_DEVICE_NOTIFY *Notify;
    PO_IRP_MANAGER PoIrpManager;
    PNP_DEVNODE_STATE State;
    PNP_DEVNODE_STATE PreviousState;
    PNP_DEVNODE_STATE StateHistory[DEVNODE_HISTORY_SIZE];
    ULONG StateHistoryEntry;
    NTSTATUS CompletionStatus;
    PIRP PendingIrp;
    ULONG Flags;
    ULONG UserFlags;
    ULONG Problem;
    PDEVICE_OBJECT PhysicalDeviceObject;
    PCM_RESOURCE_LIST ResourceList;
    PCM_RESOURCE_LIST ResourceListTranslated;
    UNICODE_STRING InstancePath;
    UNICODE_STRING ServiceName;
    PDEVICE_OBJECT DuplicatePDO;
    PIO_RESOURCE_REQUIREMENTS_LIST ResourceRequirements;
    INTERFACE_TYPE InterfaceType;
    ULONG BusNumber;
    INTERFACE_TYPE ChildInterfaceType;
    ULONG ChildBusNumber;
    USHORT ChildBusTypeIndex;
    UCHAR RemovalPolicy;
    UCHAR HardwareRemovalPolicy;
    LIST_ENTRY TargetDeviceNotify;
    LIST_ENTRY DeviceArbiterList;
    LIST_ENTRY DeviceTranslatorList;
    USHORT NoTranslatorMask;
    USHORT QueryTranslatorMask;
    USHORT NoArbiterMask;
    USHORT QueryArbiterMask;
    union
    {
        struct _DEVICE_NODE *LegacyDeviceNode;
        PDEVICE_RELATIONS PendingDeviceRelations;
    } OverUsed1;
    union
    {
        struct _DEVICE_NODE *NextResourceDeviceNode;
    } OverUsed2;
    PCM_RESOURCE_LIST BootResources;
#if (NTDDI_VERSION >= NTDDI_LONGHORN)
    PCM_RESOURCE_LIST BootResourcesTranslated;
#endif
    ULONG CapabilityFlags;
    struct
    {
        PROFILE_STATUS DockStatus;
        LIST_ENTRY ListEntry;
        WCHAR *SerialNumber;
    } DockInfo;
    ULONG DisableableDepends;
    LIST_ENTRY PendedSetInterfaceState;
    LIST_ENTRY LegacyBusListEntry;
    ULONG DriverUnloadRetryCount;
    struct _DEVICE_NODE *PreviousParent;
    ULONG DeletedChildren;
#if (NTDDI_VERSION >= NTDDI_LONGHORN)
    ULONG NumaNodeIndex;
#endif
} DEVICE_NODE, *PDEVICE_NODE;
 
//
// Resource Aribtrer Entry
//
typedef struct _PI_RESOURCE_ARBITER_ENTRY
{
    LIST_ENTRY DeviceArbiterList;
    UCHAR ResourceType;
    PARBITER_INTERFACE ArbiterInterface;
    ULONG Level;
    LIST_ENTRY ResourceList;
    LIST_ENTRY BestResourceList;
    LIST_ENTRY BestConfig;
    LIST_ENTRY ActiveArbiterList;
    UCHAR State;
    UCHAR ResourcesChanged;
} PI_RESOURCE_ARBITER_ENTRY, *PPI_RESOURCE_ARBITER_ENTRY;
 
//
// Extended Device Object Extension Structure
//
typedef struct _EXTENDED_DEVOBJ_EXTENSION
{
    CSHORT Type;
    USHORT Size;
    PDEVICE_OBJECT DeviceObject;
    ULONG PowerFlags;
    struct _DEVICE_OBJECT_POWER_EXTENSION *Dope;
    ULONG ExtensionFlags;
    struct _DEVICE_NODE *DeviceNode;
    PDEVICE_OBJECT AttachedTo;
    LONG StartIoCount;
    LONG StartIoKey;
    ULONG StartIoFlags;
    struct _VPB *Vpb;
} EXTENDED_DEVOBJ_EXTENSION, *PEXTENDED_DEVOBJ_EXTENSION;
 
//
// Extended Driver Object Extension Structure
//
typedef struct _EXTENDED_DRIVER_EXTENSION
{
    struct _DRIVER_OBJECT *DriverObject;
    PDRIVER_ADD_DEVICE AddDevice;
    ULONG Count;
    UNICODE_STRING ServiceKeyName;
    PIO_CLIENT_EXTENSION ClientDriverExtension;
    PFS_FILTER_CALLBACKS FsFilterCallbacks;
} EXTENDED_DRIVER_EXTENSION, *PEXTENDED_DRIVER_EXTENSION;
 
#endif // !NTOS_MODE_USER
 
//
// Firmware Boot File Path
//
typedef struct _FILE_PATH
{
    ULONG Version;
    ULONG Length;
    ULONG Type;
    CHAR FilePath[1];
} FILE_PATH, *PFILE_PATH;
 
//
// Firmware Boot Options
//
typedef struct _BOOT_OPTIONS
{
    ULONG Version;
    ULONG Length;
    ULONG Timeout;
    ULONG CurrentBootEntryId;
    ULONG NextBootEntryId;
    WCHAR HeadlessRedirection[1];
} BOOT_OPTIONS, *PBOOT_OPTIONS;
 
//
// Firmware Boot Entry
//
typedef struct _BOOT_ENTRY
{
    ULONG Version;
    ULONG Length;
    ULONG Id;
    ULONG Attributes;
    ULONG FriendlyNameOffset;
    ULONG BootFilePathOffset;
    ULONG OsOptionsLength;
    CHAR OsOptions[1];
} BOOT_ENTRY, *PBOOT_ENTRY;
 
//
// Firmware Driver Entry
//
typedef struct _EFI_DRIVER_ENTRY
{
    ULONG Version;
    ULONG Length;
    ULONG Id;
    ULONG Attributes;
    ULONG FriendlyNameOffset;
    ULONG DriverFilePathOffset;
} EFI_DRIVER_ENTRY, *PEFI_DRIVER_ENTRY;
 
#ifdef NTOS_MODE_USER
 
//
// APC Callback for NtReadFile, NtWriteFile
//
typedef VOID
(NTAPI *PIO_APC_ROUTINE)(
    _In_ PVOID ApcContext,
    _In_ PIO_STATUS_BLOCK IoStatusBlock,
    _In_ ULONG Reserved);
 
//
// Mailslot IOCTL Codes
//
#define FSCTL_MAILSLOT_PEEK             \
    CTL_CODE(FILE_DEVICE_MAILSLOT, 0, METHOD_NEITHER, FILE_READ_DATA)
 
//
// Pipe IOCTL Codes
//
#define FSCTL_PIPE_ASSIGN_EVENT         \
    CTL_CODE(FILE_DEVICE_NAMED_PIPE, 0, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define FSCTL_PIPE_DISCONNECT           \
    CTL_CODE(FILE_DEVICE_NAMED_PIPE, 1, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define FSCTL_PIPE_LISTEN               \
    CTL_CODE(FILE_DEVICE_NAMED_PIPE, 2, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define FSCTL_PIPE_PEEK                 \
    CTL_CODE(FILE_DEVICE_NAMED_PIPE, 3, METHOD_BUFFERED, FILE_READ_DATA)
#define FSCTL_PIPE_QUERY_EVENT          \
    CTL_CODE(FILE_DEVICE_NAMED_PIPE, 4, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define FSCTL_PIPE_TRANSCEIVE           \
    CTL_CODE(FILE_DEVICE_NAMED_PIPE, 5, METHOD_NEITHER,  FILE_READ_DATA | FILE_WRITE_DATA)
#define FSCTL_PIPE_WAIT                 \
    CTL_CODE(FILE_DEVICE_NAMED_PIPE, 6, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define FSCTL_PIPE_IMPERSONATE          \
    CTL_CODE(FILE_DEVICE_NAMED_PIPE, 7, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define FSCTL_PIPE_SET_CLIENT_PROCESS   \
    CTL_CODE(FILE_DEVICE_NAMED_PIPE, 8, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define FSCTL_PIPE_QUERY_CLIENT_PROCESS \
    CTL_CODE(FILE_DEVICE_NAMED_PIPE, 9, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define FSCTL_PIPE_INTERNAL_READ        \
    CTL_CODE(FILE_DEVICE_NAMED_PIPE, 2045, METHOD_BUFFERED, FILE_READ_DATA)
#define FSCTL_PIPE_INTERNAL_WRITE       \
    CTL_CODE(FILE_DEVICE_NAMED_PIPE, 2046, METHOD_BUFFERED, FILE_WRITE_DATA)
#define FSCTL_PIPE_INTERNAL_TRANSCEIVE  \
    CTL_CODE(FILE_DEVICE_NAMED_PIPE, 2047, METHOD_NEITHER, FILE_READ_DATA | FILE_WRITE_DATA)
#define FSCTL_PIPE_INTERNAL_READ_OVFLOW \
    CTL_CODE(FILE_DEVICE_NAMED_PIPE, 2048, METHOD_BUFFERED, FILE_READ_DATA)
 
//
// Tape IOCTL Codes
//
#define IOCTL_TAPE_ERASE                \
    CTL_CODE(FILE_DEVICE_TAPE, 0, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
#define IOCTL_TAPE_PREPARE              \
    CTL_CODE(FILE_DEVICE_TAPE, 1, METHOD_BUFFERED, FILE_READ_ACCESS)
#define IOCTL_TAPE_WRITE_MARKS          \
    CTL_CODE(FILE_DEVICE_TAPE, 2, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
#define IOCTL_TAPE_GET_POSITION         \
    CTL_CODE(FILE_DEVICE_TAPE, 3, METHOD_BUFFERED, FILE_READ_ACCESS)
#define IOCTL_TAPE_SET_POSITION         \
    CTL_CODE(FILE_DEVICE_TAPE, 4, METHOD_BUFFERED, FILE_READ_ACCESS)
#define IOCTL_TAPE_GET_DRIVE_PARAMS     \
    CTL_CODE(FILE_DEVICE_TAPE, 5, METHOD_BUFFERED, FILE_READ_ACCESS)
#define IOCTL_TAPE_SET_DRIVE_PARAMS     \
    CTL_CODE(FILE_DEVICE_TAPE, 6, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
#define IOCTL_TAPE_GET_MEDIA_PARAMS     \
    CTL_CODE(FILE_DEVICE_TAPE, 7, METHOD_BUFFERED, FILE_READ_ACCESS)
#define IOCTL_TAPE_SET_MEDIA_PARAMS     \
    CTL_CODE(FILE_DEVICE_TAPE, 8, METHOD_BUFFERED, FILE_READ_ACCESS)
#define IOCTL_TAPE_GET_STATUS           \
    CTL_CODE(FILE_DEVICE_TAPE, 9, METHOD_BUFFERED, FILE_READ_ACCESS)
#define IOCTL_TAPE_CREATE_PARTITION     \
    CTL_CODE(FILE_DEVICE_TAPE, 10, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
 
//
// Reparse points
//
 
#define SYMLINK_FLAG_RELATIVE   1
 
typedef struct _REPARSE_DATA_BUFFER {
  ULONG ReparseTag;
  USHORT ReparseDataLength;
  USHORT Reserved;
  _ANONYMOUS_UNION union {
    struct {
      USHORT SubstituteNameOffset;
      USHORT SubstituteNameLength;
      USHORT PrintNameOffset;
      USHORT PrintNameLength;
      ULONG Flags;
      WCHAR PathBuffer[1];
    } SymbolicLinkReparseBuffer;
    struct {
      USHORT SubstituteNameOffset;
      USHORT SubstituteNameLength;
      USHORT PrintNameOffset;
      USHORT PrintNameLength;
      WCHAR PathBuffer[1];
    } MountPointReparseBuffer;
    struct {
      UCHAR DataBuffer[1];
    } GenericReparseBuffer;
  } DUMMYUNIONNAME;
} REPARSE_DATA_BUFFER, *PREPARSE_DATA_BUFFER;
 
#endif // NTOS_MODE_USER
 
#endif