reactos/drivers/filesystems/ntfs/ntfs.h

#ifndef NTFS_H
#define NTFS_H

#include <ntifs.h>
#include <ntddk.h>
#include <ntdddisk.h>

#define CACHEPAGESIZE(pDeviceExt) \
	((pDeviceExt)->NtfsInfo.UCHARsPerCluster > PAGE_SIZE ? \
	 (pDeviceExt)->NtfsInfo.UCHARsPerCluster : PAGE_SIZE)

#define TAG_NTFS 'SFTN'

#define ROUND_UP(N, S) ((((N) + (S) - 1) / (S)) * (S))

#define DEVICE_NAME L"\\Ntfs"

#include <pshpack1.h>
typedef struct _BIOS_PARAMETERS_BLOCK
{
  USHORT    BytesPerSector;			// 0x0B
  UCHAR     SectorsPerCluster;		// 0x0D
  UCHAR     Unused0[7];				// 0x0E, checked when volume is mounted
  UCHAR     MediaId;				// 0x15
  UCHAR     Unused1[2];				// 0x16
  USHORT    SectorsPerTrack;		// 0x18
  USHORT    Heads;					// 0x1A
  UCHAR     Unused2[4];				// 0x1C
  UCHAR     Unused3[4];				// 0x20, checked when volume is mounted
} BIOS_PARAMETERS_BLOCK, *PBIOS_PARAMETERS_BLOCK;

typedef struct _EXTENDED_BIOS_PARAMETERS_BLOCK
{
  USHORT    Unknown[2];				// 0x24, always 80 00 80 00
  ULONGLONG SectorCount;			// 0x28
  ULONGLONG MftLocation;			// 0x30
  ULONGLONG MftMirrLocation;		// 0x38
  CHAR      ClustersPerMftRecord;	// 0x40
  UCHAR     Unused4[3];				// 0x41
  CHAR      ClustersPerIndexRecord; // 0x44
  UCHAR     Unused5[3];				// 0x45
  ULONGLONG SerialNumber;			// 0x48
  UCHAR     Checksum[4];			// 0x50
} EXTENDED_BIOS_PARAMETERS_BLOCK, *PEXTENDED_BIOS_PARAMETERS_BLOCK;

typedef struct _BOOT_SECTOR
{
  UCHAR     Jump[3];				// 0x00
  UCHAR     OEMID[8];				// 0x03
  BIOS_PARAMETERS_BLOCK BPB;
  EXTENDED_BIOS_PARAMETERS_BLOCK EBPB;
  UCHAR     BootStrap[426];			// 0x54
  USHORT    EndSector;				// 0x1FE
} BOOT_SECTOR, *PBOOT_SECTOR;
#include <poppack.h>

//typedef struct _BootSector BootSector;





typedef struct _NTFS_INFO
{
  ULONG BytesPerSector;
  ULONG SectorsPerCluster;
  ULONG BytesPerCluster;
  ULONGLONG SectorCount;
  ULARGE_INTEGER MftStart;
  ULARGE_INTEGER MftMirrStart;
  ULONG BytesPerFileRecord;

  ULONGLONG SerialNumber;
  USHORT VolumeLabelLength;
  WCHAR VolumeLabel[MAXIMUM_VOLUME_LABEL_LENGTH];
  UCHAR MajorVersion;
  UCHAR MinorVersion;
  USHORT Flags;

} NTFS_INFO, *PNTFS_INFO;

#define NTFS_TYPE_CCB         '20SF'
#define NTFS_TYPE_FCB         '30SF'
#define	NTFS_TYPE_VCB         '50SF'
#define NTFS_TYPE_IRP_CONTEST '60SF'
#define NTFS_TYPE_GLOBAL_DATA '70SF'

typedef struct
{
  ULONG Type;
  ULONG Size;
} NTFSIDENTIFIER, *PNTFSIDENTIFIER;


typedef struct
{
  NTFSIDENTIFIER Identifier;

  ERESOURCE DirResource;
//  ERESOURCE FatResource;

  KSPIN_LOCK FcbListLock;
  LIST_ENTRY FcbListHead;

  PVPB Vpb;
  PDEVICE_OBJECT StorageDevice;
  PFILE_OBJECT StreamFileObject;

  NTFS_INFO NtfsInfo;


} DEVICE_EXTENSION, *PDEVICE_EXTENSION, NTFS_VCB, *PNTFS_VCB;


#define FCB_CACHE_INITIALIZED   0x0001
#define FCB_IS_VOLUME_STREAM    0x0002
#define FCB_IS_VOLUME           0x0004
#define MAX_PATH                260

typedef struct _FCB
{
  NTFSIDENTIFIER Identifier;

  FSRTL_COMMON_FCB_HEADER RFCB;
  SECTION_OBJECT_POINTERS SectionObjectPointers;

  PFILE_OBJECT FileObject;
  PNTFS_VCB Vcb;

  WCHAR *ObjectName;		/* point on filename (250 chars max) in PathName */
  WCHAR PathName[MAX_PATH];	/* path+filename 260 max */

  ERESOURCE PagingIoResource;
  ERESOURCE MainResource;

  LIST_ENTRY FcbListEntry;
  struct _FCB* ParentFcb;

  ULONG DirIndex;

  LONG RefCount;
  ULONG Flags;

//  DIR_RECORD Entry;


} NTFS_FCB, *PNTFS_FCB;


typedef struct
{
  NTFSIDENTIFIER Identifier;
  LIST_ENTRY     NextCCB;
  PFILE_OBJECT   PtrFileObject;
  LARGE_INTEGER  CurrentByteOffset;
  /* for DirectoryControl */
  ULONG Entry;
  /* for DirectoryControl */
  PWCHAR DirectorySearchPattern;
  ULONG LastCluster;
  ULONG LastOffset;
} NTFS_CCB, *PNTFS_CCB;

#define TAG_CCB 'BCCI'

typedef struct
{
  NTFSIDENTIFIER Identifier;
  ERESOURCE      Resource;
  PDRIVER_OBJECT DriverObject;
  PDEVICE_OBJECT DeviceObject;
  CACHE_MANAGER_CALLBACKS CacheMgrCallbacks;
  ULONG Flags;
} NTFS_GLOBAL_DATA, *PNTFS_GLOBAL_DATA;


typedef enum
{
  AttributeStandardInformation = 0x10,
  AttributeAttributeList = 0x20,
  AttributeFileName = 0x30,
  AttributeObjectId = 0x40,
  AttributeSecurityDescriptor = 0x50,
  AttributeVolumeName = 0x60,
  AttributeVolumeInformation = 0x70,
  AttributeData = 0x80,
  AttributeIndexRoot = 0x90,
  AttributeIndexAllocation = 0xA0,
  AttributeBitmap = 0xB0,
  AttributeReparsePoint = 0xC0,
  AttributeEAInformation = 0xD0,
  AttributeEA = 0xE0,
  AttributePropertySet = 0xF0,
  AttributeLoggedUtilityStream = 0x100
} ATTRIBUTE_TYPE, *PATTRIBUTE_TYPE;


typedef struct
{
  ULONG Type;             /* Magic number 'FILE' */
  USHORT UsaOffset;       /* Offset to the update sequence */
  USHORT UsaCount;        /* Size in words of Update Sequence Number & Array (S) */
  ULONGLONG Lsn;          /* $LogFile Sequence Number (LSN) */
} NTFS_RECORD_HEADER, *PNTFS_RECORD_HEADER;

/* NTFS_RECORD_HEADER.Type */
#define NRH_FILE_TYPE  0x454C4946  /* 'FILE' */


typedef struct
{
  NTFS_RECORD_HEADER Ntfs;
  USHORT SequenceNumber;        /* Sequence number */
  USHORT LinkCount;             /* Hard link count */
  USHORT AttributeOffset;       /* Offset to the first Attribute */
  USHORT Flags;                 /* Flags */
  ULONG BytesInUse;             /* Real size of the FILE record */
  ULONG BytesAllocated;         /* Allocated size of the FILE record */
  ULONGLONG BaseFileRecord;     /* File reference to the base FILE record */
  USHORT NextAttributeNumber;   /* Next Attribute Id */
  USHORT Pading;                /* Align to 4 UCHAR boundary (XP) */
  ULONG MFTRecordNumber;        /* Number of this MFT Record (XP) */
} FILE_RECORD_HEADER, *PFILE_RECORD_HEADER;

/* Flags in FILE_RECORD_HEADER */

#define FRH_IN_USE    0x0001    /* Record is in use */
#define FRH_DIRECTORY 0x0002    /* Record is a directory */
#define FRH_UNKNOWN1  0x0004    /* Don't know */
#define FRH_UNKNOWN2  0x0008    /* Don't know */

typedef struct
{
  ATTRIBUTE_TYPE AttributeType;
  ULONG Length;
  BOOLEAN Nonresident;
  UCHAR NameLength;
  USHORT NameOffset;
  USHORT Flags;
  USHORT AttributeNumber;
} ATTRIBUTE, *PATTRIBUTE;

typedef struct
{
  ATTRIBUTE Attribute;
  ULONG ValueLength;
  USHORT ValueOffset;
  UCHAR Flags;
//  UCHAR Padding0;
} RESIDENT_ATTRIBUTE, *PRESIDENT_ATTRIBUTE;

typedef struct
{
  ATTRIBUTE Attribute;
  ULONGLONG StartVcn; // LowVcn
  ULONGLONG LastVcn; // HighVcn
  USHORT RunArrayOffset;
  USHORT CompressionUnit;
  ULONG  Padding0;
  UCHAR  IndexedFlag;
  ULONGLONG AllocatedSize;
  ULONGLONG DataSize;
  ULONGLONG InitializedSize;
  ULONGLONG CompressedSize;
} NONRESIDENT_ATTRIBUTE, *PNONRESIDENT_ATTRIBUTE;


typedef struct
{
  ULONGLONG CreationTime;
  ULONGLONG ChangeTime;
  ULONGLONG LastWriteTime;
  ULONGLONG LastAccessTime;
  ULONG FileAttribute;
  ULONG AlignmentOrReserved[3];
#if 0
  ULONG QuotaId;
  ULONG SecurityId;
  ULONGLONG QuotaCharge;
  USN Usn;
#endif
} STANDARD_INFORMATION, *PSTANDARD_INFORMATION;


typedef struct
{
  ATTRIBUTE_TYPE AttributeType;
  USHORT Length;
  UCHAR NameLength;
  UCHAR NameOffset;
  ULONGLONG StartVcn; // LowVcn
  ULONGLONG FileReferenceNumber;
  USHORT AttributeNumber;
  USHORT AlignmentOrReserved[3];
} ATTRIBUTE_LIST, *PATTRIBUTE_LIST;


typedef struct
{
  ULONGLONG DirectoryFileReferenceNumber;
  ULONGLONG CreationTime;
  ULONGLONG ChangeTime;
  ULONGLONG LastWriteTime;
  ULONGLONG LastAccessTime;
  ULONGLONG AllocatedSize;
  ULONGLONG DataSize;
  ULONG FileAttributes;
  ULONG AlignmentOrReserved;
  UCHAR NameLength;
  UCHAR NameType;
  WCHAR Name[1];
} FILENAME_ATTRIBUTE, *PFILENAME_ATTRIBUTE;

typedef struct
{
  ULONGLONG Unknown1;
  UCHAR MajorVersion;
  UCHAR MinorVersion;
  USHORT Flags;
  ULONG Unknown2;
} VOLINFO_ATTRIBUTE, *PVOLINFO_ATTRIBUTE;

typedef struct
{
  NTFSIDENTIFIER Identifier;
  ULONG Flags;
  UCHAR MajorFunction;
  UCHAR MinorFunction;
  WORK_QUEUE_ITEM	WorkQueueItem;
  PIRP Irp;
  BOOLEAN IsTopLevel;
  PDEVICE_OBJECT DeviceObject;
  NTSTATUS SavedExceptionCode;
} NTFS_IRP_CONTEXT, *PNTFS_IRP_CONTEXT;


extern PNTFS_GLOBAL_DATA NtfsGlobalData;

//int CdfsStrcmpi( wchar_t *str1, wchar_t *str2 );
//void CdfsWstrcpy( wchar_t *str1, wchar_t *str2, int max );


/* attrib.c */

//VOID
//NtfsDumpAttribute(PATTRIBUTE Attribute);

//LONGLONG RunLCN(PUCHAR run);

//ULONG RunLength(PUCHAR run);

BOOLEAN
FindRun (PNONRESIDENT_ATTRIBUTE NresAttr,
	 ULONGLONG vcn,
	 PULONGLONG lcn,
	 PULONGLONG count);

VOID
NtfsDumpFileAttributes (PFILE_RECORD_HEADER FileRecord);

/* blockdev.c */

NTSTATUS
NtfsReadSectors(IN PDEVICE_OBJECT DeviceObject,
		IN ULONG DiskSector,
		IN ULONG SectorCount,
		IN ULONG SectorSize,
		IN OUT PUCHAR Buffer,
		IN BOOLEAN Override);

NTSTATUS
NtfsDeviceIoControl(IN PDEVICE_OBJECT DeviceObject,
		    IN ULONG ControlCode,
		    IN PVOID InputBuffer,
		    IN ULONG InputBufferSize,
		    IN OUT PVOID OutputBuffer,
		    IN OUT PULONG OutputBufferSize,
		    IN BOOLEAN Override);

/* close.c */

DRIVER_DISPATCH NtfsFsdClose;
NTSTATUS NTAPI
NtfsFsdClose(PDEVICE_OBJECT DeviceObject,
	  PIRP Irp);

/* create.c */

DRIVER_DISPATCH NtfsFsdCreate;
NTSTATUS NTAPI
NtfsFsdCreate(PDEVICE_OBJECT DeviceObject,
	   PIRP Irp);


/* dirctl.c */

DRIVER_DISPATCH NtfsFsdDirectoryControl;
NTSTATUS NTAPI
NtfsFsdDirectoryControl(PDEVICE_OBJECT DeviceObject,
		     PIRP Irp);

/* dispatch.c */
DRIVER_DISPATCH NtfsFsdDispatch;
NTSTATUS NTAPI
NtfsFsdDispatch(PDEVICE_OBJECT DeviceObject,
                PIRP Irp);

/* fastio.c */
BOOLEAN NTAPI
NtfsAcqLazyWrite(PVOID Context,
                 BOOLEAN Wait);

VOID NTAPI
NtfsRelLazyWrite(PVOID Context);

BOOLEAN NTAPI
NtfsAcqReadAhead(PVOID Context,
                 BOOLEAN Wait);

VOID NTAPI
NtfsRelReadAhead(PVOID Context);

/* fcb.c */

PNTFS_FCB
NtfsCreateFCB(PCWSTR FileName, PNTFS_VCB Vcb);

VOID
NtfsDestroyFCB(PNTFS_FCB Fcb);

BOOLEAN
NtfsFCBIsDirectory(PNTFS_FCB Fcb);

BOOLEAN
NtfsFCBIsRoot(PNTFS_FCB Fcb);

VOID
NtfsGrabFCB(PNTFS_VCB Vcb,
	    PNTFS_FCB Fcb);

VOID
NtfsReleaseFCB(PNTFS_VCB Vcb,
	       PNTFS_FCB Fcb);

VOID
NtfsAddFCBToTable(PNTFS_VCB Vcb,
		  PNTFS_FCB Fcb);

PNTFS_FCB
NtfsGrabFCBFromTable(PNTFS_VCB Vcb,
		     PCWSTR FileName);

NTSTATUS
NtfsFCBInitializeCache(PNTFS_VCB Vcb,
		       PNTFS_FCB Fcb);

PNTFS_FCB
NtfsMakeRootFCB(PNTFS_VCB Vcb);

PNTFS_FCB
NtfsOpenRootFCB(PNTFS_VCB Vcb);

NTSTATUS
NtfsAttachFCBToFileObject(PNTFS_VCB Vcb,
			  PNTFS_FCB Fcb,
			  PFILE_OBJECT FileObject);

NTSTATUS
NtfsGetFCBForFile(PNTFS_VCB Vcb,
		  PNTFS_FCB *pParentFCB,
		  PNTFS_FCB *pFCB,
		  const PWSTR pFileName);


/* finfo.c */

DRIVER_DISPATCH NtfsFsdQueryInformation;
NTSTATUS NTAPI
NtfsFsdQueryInformation(PDEVICE_OBJECT DeviceObject,
		     PIRP Irp);


/* fsctl.c */

DRIVER_DISPATCH NtfsFsdFileSystemControl;
NTSTATUS NTAPI
NtfsFsdFileSystemControl(PDEVICE_OBJECT DeviceObject,
		      PIRP Irp);


/* mft.c */
NTSTATUS
NtfsOpenMft (PDEVICE_EXTENSION Vcb);


VOID
ReadAttribute(PATTRIBUTE attr, PVOID buffer, PDEVICE_EXTENSION Vcb,
				    PDEVICE_OBJECT DeviceObject);

ULONG
AttributeDataLength(PATTRIBUTE  attr);

ULONG
AttributeAllocatedLength (PATTRIBUTE Attribute);

NTSTATUS
ReadFileRecord (PDEVICE_EXTENSION Vcb,
		ULONG index,
		PFILE_RECORD_HEADER file,
		PFILE_RECORD_HEADER Mft);

PATTRIBUTE
FindAttribute(PFILE_RECORD_HEADER file,
	      ATTRIBUTE_TYPE type,
	      PWSTR name);

ULONG
AttributeLengthAllocated(PATTRIBUTE attr);

VOID
ReadVCN (PDEVICE_EXTENSION Vcb,
	 PFILE_RECORD_HEADER file,
	 ATTRIBUTE_TYPE type,
	 ULONGLONG vcn,
	 ULONG count,
	 PVOID buffer);


VOID FixupUpdateSequenceArray(PFILE_RECORD_HEADER file);

VOID
ReadExternalAttribute (PDEVICE_EXTENSION Vcb,
		       PNONRESIDENT_ATTRIBUTE NresAttr,
		       ULONGLONG vcn,
		       ULONG count,
		       PVOID buffer);

NTSTATUS
ReadLCN (PDEVICE_EXTENSION Vcb,
	 ULONGLONG lcn,
	 ULONG count,
	 PVOID buffer);


VOID
EnumerAttribute(PFILE_RECORD_HEADER file,
		PDEVICE_EXTENSION Vcb,
		PDEVICE_OBJECT DeviceObject);

/* misc.c */
BOOLEAN
NtfsIsIrpTopLevel(PIRP Irp);

PNTFS_IRP_CONTEXT
NtfsAllocateIrpContext(PDEVICE_OBJECT DeviceObject,
                       PIRP Irp);

#if 0
BOOLEAN
wstrcmpjoki(PWSTR s1, PWSTR s2);

VOID
CdfsSwapString(PWCHAR Out,
	       PUCHAR In,
	       ULONG Count);

VOID
CdfsDateTimeToFileTime(PFCB Fcb,
		       TIME *FileTime);

VOID
CdfsFileFlagsToAttributes(PFCB Fcb,
			  PULONG FileAttributes);
#endif

/* rw.c */

DRIVER_DISPATCH NtfsFsdRead;
NTSTATUS NTAPI
NtfsFsdRead(PDEVICE_OBJECT DeviceObject,
	PIRP Irp);

DRIVER_DISPATCH NtfsFsdWrite;
NTSTATUS NTAPI
NtfsFsdWrite(PDEVICE_OBJECT DeviceObject,
	  PIRP Irp);


/* volinfo.c */

NTSTATUS
NtfsQueryVolumeInformation(PNTFS_IRP_CONTEXT IrpContext);

NTSTATUS
NtfsSetVolumeInformation(PNTFS_IRP_CONTEXT IrpContext);

/* ntfs.c */

DRIVER_INITIALIZE DriverEntry;

VOID NTAPI NtfsInitializeFunctionPointers(PDRIVER_OBJECT DriverObject);
#endif /* NTFS_H */