rfsd.h

This is a ReiserFs file system driver for Windows NT/2000/XP/Vista.

        IN PRFSD_VCB Vcb );

NTSTATUS
RfsdCreate (IN PRFSD_IRP_CONTEXT IrpContext);

NTSTATUS
RfsdCreateInode(
        IN PRFSD_IRP_CONTEXT   IrpContext,
        IN PRFSD_VCB           Vcb,
        IN PRFSD_FCB           pParentFcb,
        IN ULONG               Type,
        IN ULONG               FileAttr,
        IN PUNICODE_STRING     FileName);

#if DISABLED
NTSTATUS
RfsdSupersedeOrOverWriteFile(
        IN PRFSD_IRP_CONTEXT IrpContext,
        IN PRFSD_VCB Vcb,
        IN PRFSD_FCB Fcb,
        IN ULONG     Disposition);
#endif

//
// Debug.c
//

#define DBG_VITAL 0
#define DBG_ERROR 1
#define DBG_USER  2
#define DBG_TRACE 3
#define DBG_INFO  4
#define DBG_FUNC  5

#if DBG
#define RfsdPrint(arg)          RfsdPrintf   arg
#define RfsdPrintNoIndent(arg)  RfsdNIPrintf arg

#define RfsdCompleteRequest(Irp, bPrint, PriorityBoost) \
        RfsdDbgPrintComplete(Irp, bPrint); \
        IoCompleteRequest(Irp, PriorityBoost)

#else

#define RfsdPrint(arg)

#define RfsdCompleteRequest(Irp, bPrint, PriorityBoost) \
        IoCompleteRequest(Irp, PriorityBoost)

#endif // DBG

VOID
__cdecl
RfsdPrintf(
    LONG  DebugPrintLevel,
    PCHAR DebugMessage,
    ...
    );

VOID
__cdecl
RfsdNIPrintf(
    LONG  DebugPrintLevel,
    PCHAR DebugMessage,
    ...
    );

extern ULONG ProcessNameOffset;

#define RfsdGetCurrentProcessName() ( \
    (PUCHAR) PsGetCurrentProcess() + ProcessNameOffset \
)

ULONG 
RfsdGetProcessNameOffset (VOID);

VOID
RfsdDbgPrintCall (
        IN PDEVICE_OBJECT   DeviceObject,
        IN PIRP             Irp );

VOID
RfsdDbgPrintComplete (
        IN PIRP Irp,
        IN BOOLEAN bPrint
        );

PUCHAR
RfsdNtStatusToString (IN NTSTATUS Status );

//
// Devctl.c
//

NTSTATUS
RfsdDeviceControlNormal (IN PRFSD_IRP_CONTEXT IrpContext);

NTSTATUS
RfsdPrepareToUnload (IN PRFSD_IRP_CONTEXT IrpContext);

NTSTATUS
RfsdDeviceControl (IN PRFSD_IRP_CONTEXT IrpContext);

//
// Dirctl.c
//

ULONG
RfsdGetInfoLength(IN FILE_INFORMATION_CLASS  FileInformationClass);

ULONG
RfsdProcessDirEntry(
			IN PRFSD_VCB         Vcb,
            IN FILE_INFORMATION_CLASS  FileInformationClass,
            IN __u32		 Key_ParentID,
			IN __u32		 Key_ObjectID,
            IN PVOID         Buffer,
            IN ULONG         UsedLength,
            IN ULONG         Length,
            IN ULONG         FileIndex,
            IN PUNICODE_STRING   pName,
            IN BOOLEAN       Single,
			IN PVOID		 pPreviousEntry	);

NTSTATUS
RfsdQueryDirectory (IN PRFSD_IRP_CONTEXT IrpContext);

NTSTATUS
RfsdNotifyChangeDirectory (
        IN PRFSD_IRP_CONTEXT IrpContext
        );

VOID
RfsdNotifyReportChange (
        IN PRFSD_IRP_CONTEXT IrpContext,
        IN PRFSD_VCB         Vcb,
        IN PRFSD_FCB         Fcb,
        IN ULONG             Filter,
        IN ULONG             Action
        );

NTSTATUS
RfsdDirectoryControl (IN PRFSD_IRP_CONTEXT IrpContext);

BOOLEAN
RfsdIsDirectoryEmpty (
        IN PRFSD_VCB Vcb,
        IN PRFSD_FCB Fcb
        );

//
// Dispatch.c
//

NTSTATUS
RfsdQueueRequest (IN PRFSD_IRP_CONTEXT IrpContext);

VOID
RfsdDeQueueRequest (IN PVOID Context);

NTSTATUS
RfsdDispatchRequest (IN PRFSD_IRP_CONTEXT IrpContext);

NTSTATUS
RfsdBuildRequest (
        IN PDEVICE_OBJECT   DeviceObject,
        IN PIRP             Irp
        );

//
// Except.c
//

NTSTATUS
RfsdExceptionFilter (
        IN PRFSD_IRP_CONTEXT    IrpContext,
        IN PEXCEPTION_POINTERS ExceptionPointer
        );

NTSTATUS
RfsdExceptionHandler (IN PRFSD_IRP_CONTEXT IrpContext);


//
// Rfsd.c
//

PRFSD_SUPER_BLOCK
RfsdLoadSuper(
        IN PRFSD_VCB Vcb,
        IN BOOLEAN   bVerify
        );

BOOLEAN
RfsdSaveSuper(
        IN PRFSD_IRP_CONTEXT    IrpContext,
        IN PRFSD_VCB            Vcb
        );

BOOLEAN
RfsdLoadGroup(IN PRFSD_VCB Vcb);

BOOLEAN
RfsdSaveGroup(
        IN PRFSD_IRP_CONTEXT    IrpContext,
        IN PRFSD_VCB            Vcb,
        IN ULONG                Group
        );

BOOLEAN
RfsdGetInodeLba (IN PRFSD_VCB   Vcb,
         IN __u32 DirectoryID,
		 IN __u32 ParentID,
         OUT PLONGLONG offset);

BOOLEAN
RfsdLoadInode (IN PRFSD_VCB Vcb,
			   IN PRFSD_KEY_IN_MEMORY pKey,
			   IN OUT PRFSD_INODE Inode);

BOOLEAN
RfsdLoadInode2 (IN PRFSD_VCB Vcb,
			   IN __u32 a,
			   IN __u32 b,
			   IN OUT PRFSD_INODE Inode);
BOOLEAN
RfsdSaveInode (
        IN PRFSD_IRP_CONTEXT IrpContext,
        IN PRFSD_VCB Vcb,
        IN ULONG inode,
        IN PRFSD_INODE Inode
        );

BOOLEAN
RfsdLoadBlock (
        IN PRFSD_VCB Vcb,
        IN ULONG     dwBlk,
        IN PVOID     Buffer
        );

BOOLEAN
RfsdSaveBlock (
        IN PRFSD_IRP_CONTEXT    IrpContext,
        IN PRFSD_VCB            Vcb,
        IN ULONG                dwBlk,
        IN PVOID                Buf
        );

BOOLEAN
RfsdSaveBuffer(
        IN PRFSD_IRP_CONTEXT    IrpContext,
        IN PRFSD_VCB            Vcb,
        IN LONGLONG             Offset,
        IN ULONG                Size,
        IN PVOID                Buf
        );

NTSTATUS
RfsdGetBlock(
    IN PRFSD_IRP_CONTEXT    IrpContext,
    IN PRFSD_VCB            Vcb,
    IN ULONG                dwContent,
    IN ULONG                Index,
    IN ULONG                Layer,
    IN BOOLEAN              bAlloc,
    OUT PULONG              pBlock
    );

NTSTATUS
RfsdBlockMap(
    IN PRFSD_IRP_CONTEXT    IrpContext,
    IN PRFSD_VCB            Vcb,
    IN ULONG                InodeNo,
    IN PRFSD_INODE          Inode,
    IN ULONG                Index,
    IN BOOLEAN              bAlloc,
    OUT PULONG              pBlock
    );

NTSTATUS
RfsdBuildBDL2(	
	IN  PRFSD_VCB				Vcb,
	IN  PRFSD_KEY_IN_MEMORY		pKey,
	IN	PRFSD_INODE				pInode,
	OUT	PULONG					out_Count,
	OUT PRFSD_BDL*				out_ppBdl  );

NTSTATUS
RfsdBuildBDL( 
    IN PRFSD_IRP_CONTEXT    IrpContext,
    IN PRFSD_VCB            Vcb,
    IN PRFSD_KEY_IN_MEMORY  InodeNo,
    IN PRFSD_INODE          Inode,
    IN ULONGLONG            Offset, 
    IN ULONG                Size, 
    IN BOOLEAN              bAlloc,
    OUT PRFSD_BDL *         Bdls,
    OUT PULONG              Count
    );

NTSTATUS
RfsdNewBlock(
    PRFSD_IRP_CONTEXT IrpContext,
    PRFSD_VCB Vcb,
    ULONG     GroupHint,
    ULONG     BlockHint,  
    PULONG    dwRet );

NTSTATUS
RfsdFreeBlock(
    PRFSD_IRP_CONTEXT IrpContext,
    PRFSD_VCB Vcb,
    ULONG     Block );

NTSTATUS
RfsdExpandBlock(
    PRFSD_IRP_CONTEXT IrpContext,
    PRFSD_VCB Vcb,
    PRFSD_FCB   Fcb,
    ULONG dwContent,
    ULONG Index,
    ULONG layer,
    BOOLEAN bNew,
    ULONG *dwRet );


NTSTATUS
RfsdExpandInode(
    PRFSD_IRP_CONTEXT IrpContext,
    PRFSD_VCB Vcb,
    PRFSD_FCB Fcb,
    ULONG *dwRet );

NTSTATUS
RfsdNewInode(
            PRFSD_IRP_CONTEXT IrpContext,
            PRFSD_VCB Vcb,
            ULONG GroupHint,
            ULONG mode,
            PULONG Inode );

BOOLEAN
RfsdFreeInode(
            PRFSD_IRP_CONTEXT IrpContext,
            PRFSD_VCB Vcb,
            ULONG Inode,
            ULONG Type );

NTSTATUS
RfsdAddEntry (
         IN PRFSD_IRP_CONTEXT   IrpContext,
         IN PRFSD_VCB           Vcb,
         IN PRFSD_FCB           Dcb,
         IN ULONG               FileType,
         IN ULONG               Inode,
         IN PUNICODE_STRING     FileName );

NTSTATUS
RfsdRemoveEntry (
         IN PRFSD_IRP_CONTEXT   IrpContext,
         IN PRFSD_VCB           Vcb,
         IN PRFSD_FCB           Dcb,
         IN ULONG               FileType,
         IN ULONG               Inode );

NTSTATUS
RfsdSetParentEntry (
         IN PRFSD_IRP_CONTEXT   IrpContext,
         IN PRFSD_VCB           Vcb,
         IN PRFSD_FCB           Dcb,
         IN ULONG               OldParent,
         IN ULONG               NewParent );


NTSTATUS
RfsdTruncateBlock(
         IN PRFSD_IRP_CONTEXT IrpContext,
         IN PRFSD_VCB Vcb,
         IN PRFSD_FCB Fcb,
         IN ULONG   dwContent,
         IN ULONG   Index,
         IN ULONG   layer,
         OUT BOOLEAN *bFreed );

NTSTATUS
RfsdTruncateInode(
         IN PRFSD_IRP_CONTEXT IrpContext,
         IN PRFSD_VCB   Vcb,
         IN PRFSD_FCB   Fcb );

BOOLEAN
RfsdAddMcbEntry (
    IN PRFSD_VCB Vcb,
    IN LONGLONG  Lba,
    IN LONGLONG  Length );

VOID
RfsdRemoveMcbEntry (
    IN PRFSD_VCB Vcb,
    IN LONGLONG  Lba,
    IN LONGLONG  Length );

BOOLEAN
RfsdLookupMcbEntry (
    IN PRFSD_VCB    Vcb,
    IN LONGLONG     Offset,
    OUT PLONGLONG   Lba OPTIONAL,
    OUT PLONGLONG   Length OPTIONAL,
    OUT PLONGLONG   RunStart OPTIONAL,
    OUT PLONGLONG   RunLength OPTIONAL,
    OUT PULONG      Index OPTIONAL );

BOOLEAN
SuperblockContainsMagicKey(PRFSD_SUPER_BLOCK sb);

__u32
ConvertKeyTypeUniqueness(__u32 k_uniqueness);

void
FillInMemoryKey(
	IN		PRFSD_KEY_ON_DISK		pKeyOnDisk, 
	IN		RFSD_KEY_VERSION		KeyVersion, 
	IN OUT	PRFSD_KEY_IN_MEMORY		pKeyInMemory );

RFSD_KEY_VERSION DetermineOnDiskKeyFormat(const PRFSD_KEY_ON_DISK key);

RFSD_KEY_COMPARISON
CompareShortKeys(
	IN		PRFSD_KEY_IN_MEMORY		a,
	IN		PRFSD_KEY_IN_MEMORY		b		);

RFSD_KEY_COMPARISON
CompareKeysWithoutOffset(
	IN		PRFSD_KEY_IN_MEMORY		a,
	IN		PRFSD_KEY_IN_MEMORY		b		);

RFSD_KEY_COMPARISON
CompareKeys(
	IN		PRFSD_KEY_IN_MEMORY		a,
	IN		PRFSD_KEY_IN_MEMORY		b	);

NTSTATUS
NavigateToLeafNode(
	IN	PRFSD_VCB					Vcb,
	IN	PRFSD_KEY_IN_MEMORY			Key,				
	IN	ULONG						StartingBlockNumber,	
	OUT	PULONG						out_NextBlockNumber );

NTSTATUS
RfsdParseFilesystemTree(
			IN	PRFSD_VCB					Vcb,
			IN	PRFSD_KEY_IN_MEMORY			Key,						// Key to search for.
			IN	ULONG						StartingBlockNumber,		// Block number of an internal or leaf node, to start the search from			
			IN	RFSD_CALLBACK(fpDirectoryCallback),					// A function ptr to trigger on hitting a matching leaf block
			IN  PVOID						Context
			);


NTSTATUS
_NavigateToLeafNode(
	IN	PRFSD_VCB					Vcb,
	IN	PRFSD_KEY_IN_MEMORY			Key,				
	IN	ULONG						StartingBlockNumber,	
	OUT	PULONG						out_NextBlockNumber,
	IN	BOOLEAN						ReturnOnFirstMatch,
	IN	RFSD_KEY_COMPARISON			(*fpComparisonFunction)(PRFSD_KEY_IN_MEMORY, PRFSD_KEY_IN_MEMORY),
	RFSD_CALLBACK(fpDirectoryCallback),
	IN	PVOID						pContext					
	);


//
// Fastio.c
//

BOOLEAN
RfsdFastIoCheckIfPossible (
              IN PFILE_OBJECT         FileObject,
              IN PLARGE_INTEGER       FileOffset,
              IN ULONG                Length,
              IN BOOLEAN              Wait,
              IN ULONG                LockKey,
              IN BOOLEAN              CheckForReadOperation,
              OUT PIO_STATUS_BLOCK    IoStatus,
              IN PDEVICE_OBJECT       DeviceObject );


BOOLEAN
RfsdFastIoRead (IN PFILE_OBJECT FileObject,
        IN PLARGE_INTEGER       FileOffset,
        IN ULONG                Length,
        IN BOOLEAN              Wait,
        IN ULONG                LockKey,
        OUT PVOID               Buffer,
        OUT PIO_STATUS_BLOCK    IoStatus,
        IN PDEVICE_OBJECT       DeviceObject);

BOOLEAN
RfsdFastIoWrite (
        IN PFILE_OBJECT         FileObject,
        IN PLARGE_INTEGER       FileOffset,
        IN ULONG                Length,
        IN BOOLEAN              Wait,
        IN ULONG                LockKey,
        OUT PVOID               Buffer,
        OUT PIO_STATUS_BLOCK    IoStatus,