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reactos/rosapps/sysutils/dosfsck/vfat.h
Steven Edwards 62e33ea5ff dos line endings 
svn path=/trunk/; revision=16887
2005-07-29 23:03:42 +00:00

744 lines
22 KiB
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/* $Id: vfat.h 16656 2005-07-20 02:52:52Z ion $ */
#include <ddk/ntifs.h>
#include <ddk/ntdddisk.h>
#include <ndk/ntndk.h>
#include <reactos/helper.h>
#include <ccros.h>
#include <limits.h>
#include <debug.h>
#define USE_ROS_CC_AND_FS
#include <pshpack1.h>
struct _BootSector
{
unsigned char magic0, res0, magic1;
unsigned char OEMName[8];
unsigned short BytesPerSector;
unsigned char SectorsPerCluster;
unsigned short ReservedSectors;
unsigned char FATCount;
unsigned short RootEntries, Sectors;
unsigned char Media;
unsigned short FATSectors, SectorsPerTrack, Heads;
unsigned long HiddenSectors, SectorsHuge;
unsigned char Drive, Res1, Sig;
unsigned long VolumeID;
unsigned char VolumeLabel[11], SysType[8];
unsigned char Res2[448];
unsigned short Signatur1;
};
struct _BootSector32
{
unsigned char magic0, res0, magic1; // 0
unsigned char OEMName[8]; // 3
unsigned short BytesPerSector; // 11
unsigned char SectorsPerCluster; // 13
unsigned short ReservedSectors; // 14
unsigned char FATCount; // 16
unsigned short RootEntries, Sectors; // 17
unsigned char Media; // 21
unsigned short FATSectors, SectorsPerTrack, Heads; // 22
unsigned long HiddenSectors, SectorsHuge; // 28
unsigned long FATSectors32; // 36
unsigned short ExtFlag; // 40
unsigned short FSVersion; // 42
unsigned long RootCluster; // 44
unsigned short FSInfoSector; // 48
unsigned short BootBackup; // 50
unsigned char Res3[12]; // 52
unsigned char Drive; // 64
unsigned char Res4; // 65
unsigned char ExtBootSignature; // 66
unsigned long VolumeID; // 67
unsigned char VolumeLabel[11], SysType[8]; // 71
unsigned char Res2[420]; // 90
unsigned short Signature1; // 510
};
struct _BootSectorFatX
{
unsigned char SysType[4]; // 0
unsigned long VolumeID; // 4
unsigned long SectorsPerCluster; // 8
unsigned short FATCount; // 12
unsigned long Unknown; // 14
unsigned char Unused[4078]; // 18
};
struct _FsInfoSector
{
unsigned long ExtBootSignature2; // 0
unsigned char Res6[480]; // 4
unsigned long FSINFOSignature; // 484
unsigned long FreeCluster; // 488
unsigned long NextCluster; // 492
unsigned char Res7[12]; // 496
unsigned long Signatur2; // 508
};
typedef struct _BootSector BootSector;
struct _FATDirEntry
{
union
{
struct { unsigned char Filename[8], Ext[3]; };
unsigned char ShortName[11];
};
unsigned char Attrib;
unsigned char lCase;
unsigned char CreationTimeMs;
unsigned short CreationTime,CreationDate,AccessDate;
unsigned short FirstClusterHigh; // higher
unsigned short UpdateTime; //time create/update
unsigned short UpdateDate; //date create/update
unsigned short FirstCluster;
unsigned long FileSize;
};
typedef struct _FATDirEntry FAT_DIR_ENTRY, *PFAT_DIR_ENTRY;
struct _FATXDirEntry
{
unsigned char FilenameLength; // 0
unsigned char Attrib; // 1
unsigned char Filename[42]; // 2
unsigned long FirstCluster; // 44
unsigned long FileSize; // 48
unsigned short UpdateTime; // 52
unsigned short UpdateDate; // 54
unsigned short CreationTime; // 56
unsigned short CreationDate; // 58
unsigned short AccessTime; // 60
unsigned short AccessDate; // 62
};
struct _slot
{
unsigned char id; // sequence number for slot
WCHAR name0_4[5]; // first 5 characters in name
unsigned char attr; // attribute byte
unsigned char reserved; // always 0
unsigned char alias_checksum; // checksum for 8.3 alias
WCHAR name5_10[6]; // 6 more characters in name
unsigned char start[2]; // starting cluster number
WCHAR name11_12[2]; // last 2 characters in name
};
typedef struct _slot slot;
#include <poppack.h>
#define VFAT_CASE_LOWER_BASE 8 // base is lower case
#define VFAT_CASE_LOWER_EXT 16 // extension is lower case
#define LONGNAME_MAX_LENGTH 256 // max length for a long filename
#define ENTRY_DELETED(DeviceExt, DirEntry) ((DeviceExt)->Flags & VCB_IS_FATX ? FATX_ENTRY_DELETED(&((DirEntry)->FatX)) : FAT_ENTRY_DELETED(&((DirEntry)->Fat)))
#define ENTRY_VOLUME(DeviceExt, DirEntry) ((DeviceExt)->Flags & VCB_IS_FATX ? FATX_ENTRY_VOLUME(&((DirEntry)->FatX)) : FAT_ENTRY_VOLUME(&((DirEntry)->Fat)))
#define ENTRY_END(DeviceExt, DirEntry) ((DeviceExt)->Flags & VCB_IS_FATX ? FATX_ENTRY_END(&((DirEntry)->FatX)) : FAT_ENTRY_END(&((DirEntry)->Fat)))
#define FAT_ENTRY_DELETED(DirEntry) ((DirEntry)->Filename[0] == 0xe5)
#define FAT_ENTRY_END(DirEntry) ((DirEntry)->Filename[0] == 0)
#define FAT_ENTRY_LONG(DirEntry) (((DirEntry)->Attrib & 0x3f) == 0x0f)
#define FAT_ENTRY_VOLUME(DirEntry) (((DirEntry)->Attrib & 0x1f) == 0x08)
#define FATX_ENTRY_DELETED(DirEntry) ((DirEntry)->FilenameLength == 0xe5)
#define FATX_ENTRY_END(DirEntry) ((DirEntry)->FilenameLength == 0xff)
#define FATX_ENTRY_LONG(DirEntry) (FALSE)
#define FATX_ENTRY_VOLUME(DirEntry) (((DirEntry)->Attrib & 0x1f) == 0x08)
#define FAT_ENTRIES_PER_PAGE (PAGE_SIZE / sizeof (FAT_DIR_ENTRY))
#define FATX_ENTRIES_PER_PAGE (PAGE_SIZE / sizeof (FATX_DIR_ENTRY))
typedef struct _FATXDirEntry FATX_DIR_ENTRY, *PFATX_DIR_ENTRY;
union _DIR_ENTRY
{
FAT_DIR_ENTRY Fat;
FATX_DIR_ENTRY FatX;
};
typedef union _DIR_ENTRY DIR_ENTRY, *PDIR_ENTRY;
#define BLOCKSIZE 512
#define FAT16 (1)
#define FAT12 (2)
#define FAT32 (3)
#define FATX16 (4)
#define FATX32 (5)
#define VCB_VOLUME_LOCKED 0x0001
#define VCB_DISMOUNT_PENDING 0x0002
#define VCB_IS_FATX 0x0004
#define VCB_IS_DIRTY 0x4000 /* Volume is dirty */
#define VCB_CLEAR_DIRTY 0x8000 /* Clean dirty flag at shutdown */
typedef struct
{
ULONG VolumeID;
ULONG FATStart;
ULONG FATCount;
ULONG FATSectors;
ULONG rootDirectorySectors;
ULONG rootStart;
ULONG dataStart;
ULONG RootCluster;
ULONG SectorsPerCluster;
ULONG BytesPerSector;
ULONG BytesPerCluster;
ULONG NumberOfClusters;
ULONG FatType;
ULONG Sectors;
BOOLEAN FixedMedia;
} FATINFO, *PFATINFO;
struct _VFATFCB;
struct _VFAT_DIRENTRY_CONTEXT;
typedef struct _HASHENTRY
{
ULONG Hash;
struct _VFATFCB* self;
struct _HASHENTRY* next;
}
HASHENTRY;
#define FCB_HASH_TABLE_SIZE 65536
typedef struct DEVICE_EXTENSION *PDEVICE_EXTENSION;
typedef NTSTATUS (*PGET_NEXT_CLUSTER)(PDEVICE_EXTENSION,ULONG,PULONG);
typedef NTSTATUS (*PFIND_AND_MARK_AVAILABLE_CLUSTER)(PDEVICE_EXTENSION,PULONG);
typedef NTSTATUS (*PWRITE_CLUSTER)(PDEVICE_EXTENSION,ULONG,ULONG,PULONG);
typedef NTSTATUS (*PGET_NEXT_DIR_ENTRY)(PVOID*,PVOID*,struct _VFATFCB*,struct _VFAT_DIRENTRY_CONTEXT*,BOOLEAN);
typedef struct DEVICE_EXTENSION
{
ERESOURCE DirResource;
ERESOURCE FatResource;
KSPIN_LOCK FcbListLock;
LIST_ENTRY FcbListHead;
ULONG HashTableSize;
struct _HASHENTRY** FcbHashTable;
PDEVICE_OBJECT StorageDevice;
PFILE_OBJECT FATFileObject;
FATINFO FatInfo;
ULONG LastAvailableCluster;
ULONG AvailableClusters;
BOOLEAN AvailableClustersValid;
ULONG Flags;
struct _VFATFCB * VolumeFcb;
/* Pointers to functions for manipulating FAT. */
PGET_NEXT_CLUSTER GetNextCluster;
PFIND_AND_MARK_AVAILABLE_CLUSTER FindAndMarkAvailableCluster;
PWRITE_CLUSTER WriteCluster;
ULONG CleanShutBitMask;
/* Pointers to functions for manipulating directory entries. */
PGET_NEXT_DIR_ENTRY GetNextDirEntry;
ULONG BaseDateYear;
LIST_ENTRY VolumeListEntry;
} DEVICE_EXTENSION, VCB, *PVCB;
typedef struct
{
PDRIVER_OBJECT DriverObject;
PDEVICE_OBJECT DeviceObject;
ULONG Flags;
ERESOURCE VolumeListLock;
LIST_ENTRY VolumeListHead;
NPAGED_LOOKASIDE_LIST FcbLookasideList;
NPAGED_LOOKASIDE_LIST CcbLookasideList;
NPAGED_LOOKASIDE_LIST IrpContextLookasideList;
FAST_IO_DISPATCH FastIoDispatch;
CACHE_MANAGER_CALLBACKS CacheMgrCallbacks;
} VFAT_GLOBAL_DATA, *PVFAT_GLOBAL_DATA;
extern PVFAT_GLOBAL_DATA VfatGlobalData;
#define FCB_CACHE_INITIALIZED 0x0001
#define FCB_DELETE_PENDING 0x0002
#define FCB_IS_FAT 0x0004
#define FCB_IS_PAGE_FILE 0x0008
#define FCB_IS_VOLUME 0x0010
#define FCB_IS_DIRTY 0x0020
#define FCB_IS_FATX_ENTRY 0x0040
typedef struct _VFATFCB
{
/* FCB header required by ROS/NT */
FSRTL_COMMON_FCB_HEADER RFCB;
SECTION_OBJECT_POINTERS SectionObjectPointers;
ERESOURCE MainResource;
ERESOURCE PagingIoResource;
/* end FCB header required by ROS/NT */
/* directory entry for this file or directory */
DIR_ENTRY entry;
/* Pointer to attributes in entry */
PUCHAR Attributes;
/* long file name, points into PathNameBuffer */
UNICODE_STRING LongNameU;
/* short file name */
UNICODE_STRING ShortNameU;
/* directory name, points into PathNameBuffer */
UNICODE_STRING DirNameU;
/* path + long file name 260 max*/
UNICODE_STRING PathNameU;
/* buffer for PathNameU */
PWCHAR PathNameBuffer;
/* buffer for ShortNameU */
WCHAR ShortNameBuffer[13];
/* */
LONG RefCount;
/* List of FCB's for this volume */
LIST_ENTRY FcbListEntry;
/* pointer to the parent fcb */
struct _VFATFCB* parentFcb;
/* Flags for the fcb */
ULONG Flags;
/* pointer to the file object which has initialized the fcb */
PFILE_OBJECT FileObject;
/* Directory index for the short name entry */
ULONG dirIndex;
/* Directory index where the long name starts */
ULONG startIndex;
/* Share access for the file object */
SHARE_ACCESS FCBShareAccess;
/* Incremented on IRP_MJ_CREATE, decremented on IRP_MJ_CLEANUP */
ULONG OpenHandleCount;
/* Entry into the hash table for the path + long name */
HASHENTRY Hash;
/* Entry into the hash table for the path + short name */
HASHENTRY ShortHash;
/* List of byte-range locks for this file */
FILE_LOCK FileLock;
/*
* Optimalization: caching of last read/write cluster+offset pair. Can't
* be in VFATCCB because it must be reset everytime the allocated clusters
* change.
*/
FAST_MUTEX LastMutex;
ULONG LastCluster;
ULONG LastOffset;
} VFATFCB, *PVFATFCB;
typedef struct _VFATCCB
{
LARGE_INTEGER CurrentByteOffset;
/* for DirectoryControl */
ULONG Entry;
/* for DirectoryControl */
UNICODE_STRING SearchPattern;
} VFATCCB, *PVFATCCB;
#ifndef TAG
#define TAG(A, B, C, D) (ULONG)(((A)<<0) + ((B)<<8) + ((C)<<16) + ((D)<<24))
#endif
#define TAG_CCB TAG('V', 'C', 'C', 'B')
#define TAG_FCB TAG('V', 'F', 'C', 'B')
#define TAG_IRP TAG('V', 'I', 'R', 'P')
#define ENTRIES_PER_SECTOR (BLOCKSIZE / sizeof(FATDirEntry))
typedef struct __DOSTIME
{
USHORT Second:5;
USHORT Minute:6;
USHORT Hour:5;
}
DOSTIME, *PDOSTIME;
typedef struct __DOSDATE
{
USHORT Day:5;
USHORT Month:4;
USHORT Year:5;
}
DOSDATE, *PDOSDATE;
#define IRPCONTEXT_CANWAIT 0x0001
#define IRPCONTEXT_PENDINGRETURNED 0x0002
typedef struct
{
PIRP Irp;
PDEVICE_OBJECT DeviceObject;
PDEVICE_EXTENSION DeviceExt;
ULONG Flags;
WORK_QUEUE_ITEM WorkQueueItem;
PIO_STACK_LOCATION Stack;
UCHAR MajorFunction;
UCHAR MinorFunction;
PFILE_OBJECT FileObject;
ULONG RefCount;
KEVENT Event;
} VFAT_IRP_CONTEXT, *PVFAT_IRP_CONTEXT;
typedef struct _VFAT_DIRENTRY_CONTEXT
{
ULONG StartIndex;
ULONG DirIndex;
DIR_ENTRY DirEntry;
UNICODE_STRING LongNameU;
UNICODE_STRING ShortNameU;
} VFAT_DIRENTRY_CONTEXT, *PVFAT_DIRENTRY_CONTEXT;
/* ------------------------------------------------------ shutdown.c */
NTSTATUS STDCALL VfatShutdown (PDEVICE_OBJECT DeviceObject,
PIRP Irp);
/* -------------------------------------------------------- volume.c */
NTSTATUS VfatQueryVolumeInformation (PVFAT_IRP_CONTEXT IrpContext);
NTSTATUS VfatSetVolumeInformation (PVFAT_IRP_CONTEXT IrpContext);
/* ------------------------------------------------------ blockdev.c */
NTSTATUS VfatReadDisk(IN PDEVICE_OBJECT pDeviceObject,
IN PLARGE_INTEGER ReadOffset,
IN ULONG ReadLength,
IN PUCHAR Buffer,
IN BOOLEAN Override);
NTSTATUS VfatReadDiskPartial (IN PVFAT_IRP_CONTEXT IrpContext,
IN PLARGE_INTEGER ReadOffset,
IN ULONG ReadLength,
IN ULONG BufferOffset,
IN BOOLEAN Wait);
NTSTATUS VfatWriteDiskPartial(IN PVFAT_IRP_CONTEXT IrpContext,
IN PLARGE_INTEGER WriteOffset,
IN ULONG WriteLength,
IN ULONG BufferOffset,
IN BOOLEAN Wait);
NTSTATUS VfatBlockDeviceIoControl (IN PDEVICE_OBJECT DeviceObject,
IN ULONG CtlCode,
IN PVOID InputBuffer,
IN ULONG InputBufferSize,
IN OUT PVOID OutputBuffer,
IN OUT PULONG pOutputBufferSize,
IN BOOLEAN Override);
/* ----------------------------------------------------------- dir.c */
NTSTATUS VfatDirectoryControl (PVFAT_IRP_CONTEXT);
BOOLEAN FsdDosDateTimeToSystemTime (PDEVICE_EXTENSION DeviceExt,
USHORT DosDate,
USHORT DosTime,
PLARGE_INTEGER SystemTime);
BOOLEAN FsdSystemTimeToDosDateTime (PDEVICE_EXTENSION DeviceExt,
PLARGE_INTEGER SystemTime,
USHORT *pDosDate,
USHORT *pDosTime);
/* -------------------------------------------------------- create.c */
NTSTATUS VfatCreate (PVFAT_IRP_CONTEXT IrpContext);
NTSTATUS VfatOpenFile (PDEVICE_EXTENSION DeviceExt,
PFILE_OBJECT FileObject,
PVFATFCB* parentFcb);
NTSTATUS FindFile (PDEVICE_EXTENSION DeviceExt,
PVFATFCB Parent,
PUNICODE_STRING FileToFindU,
PVFAT_DIRENTRY_CONTEXT DirContext,
BOOLEAN First);
VOID vfat8Dot3ToString (PFAT_DIR_ENTRY pEntry,
PUNICODE_STRING NameU);
NTSTATUS ReadVolumeLabel(PDEVICE_EXTENSION DeviceExt,
PVPB Vpb);
/* --------------------------------------------------------- close.c */
NTSTATUS VfatClose (PVFAT_IRP_CONTEXT IrpContext);
NTSTATUS VfatCloseFile(PDEVICE_EXTENSION DeviceExt,
PFILE_OBJECT FileObject);
/* ------------------------------------------------------- cleanup.c */
NTSTATUS VfatCleanup (PVFAT_IRP_CONTEXT IrpContext);
/* --------------------------------------------------------- fastio.c */
VOID
VfatInitFastIoRoutines(PFAST_IO_DISPATCH FastIoDispatch);
BOOLEAN NTAPI
VfatAcquireForLazyWrite(IN PVOID Context,
IN BOOLEAN Wait);
VOID NTAPI
VfatReleaseFromLazyWrite(IN PVOID Context);
BOOLEAN NTAPI
VfatAcquireForReadAhead(IN PVOID Context,
IN BOOLEAN Wait);
VOID NTAPI
VfatReleaseFromReadAhead(IN PVOID Context);
/* --------------------------------------------------------- fsctl.c */
NTSTATUS VfatFileSystemControl (PVFAT_IRP_CONTEXT IrpContext);
/* --------------------------------------------------------- finfo.c */
NTSTATUS VfatQueryInformation (PVFAT_IRP_CONTEXT IrpContext);
NTSTATUS VfatSetInformation (PVFAT_IRP_CONTEXT IrpContext);
NTSTATUS
VfatSetAllocationSizeInformation(PFILE_OBJECT FileObject,
PVFATFCB Fcb,
PDEVICE_EXTENSION DeviceExt,
PLARGE_INTEGER AllocationSize);
/* --------------------------------------------------------- iface.c */
NTSTATUS STDCALL DriverEntry (PDRIVER_OBJECT DriverObject,
PUNICODE_STRING RegistryPath);
/* --------------------------------------------------------- dirwr.c */
NTSTATUS VfatAddEntry (PDEVICE_EXTENSION DeviceExt,
PUNICODE_STRING PathNameU,
PVFATFCB* Fcb,
PVFATFCB ParentFcb,
ULONG RequestedOptions,
UCHAR ReqAttr);
NTSTATUS VfatUpdateEntry (PVFATFCB pFcb);
NTSTATUS VfatDelEntry(PDEVICE_EXTENSION, PVFATFCB);
BOOLEAN
vfatFindDirSpace(PDEVICE_EXTENSION DeviceExt,
PVFATFCB pDirFcb,
ULONG nbSlots,
PULONG start);
/* -------------------------------------------------------- string.c */
VOID
vfatSplitPathName(PUNICODE_STRING PathNameU,
PUNICODE_STRING DirNameU,
PUNICODE_STRING FileNameU);
BOOLEAN vfatIsLongIllegal(WCHAR c);
BOOLEAN wstrcmpjoki (PWSTR s1,
PWSTR s2);
/* ----------------------------------------------------------- fat.c */
NTSTATUS FAT12GetNextCluster(PDEVICE_EXTENSION DeviceExt,
ULONG CurrentCluster,
PULONG NextCluster);
NTSTATUS FAT12FindAndMarkAvailableCluster(PDEVICE_EXTENSION DeviceExt,
PULONG Cluster);
NTSTATUS FAT12WriteCluster(PDEVICE_EXTENSION DeviceExt,
ULONG ClusterToWrite,
ULONG NewValue,
PULONG OldValue);
NTSTATUS FAT16GetNextCluster(PDEVICE_EXTENSION DeviceExt,
ULONG CurrentCluster,
PULONG NextCluster);
NTSTATUS FAT16FindAndMarkAvailableCluster(PDEVICE_EXTENSION DeviceExt,
PULONG Cluster);
NTSTATUS FAT16WriteCluster(PDEVICE_EXTENSION DeviceExt,
ULONG ClusterToWrite,
ULONG NewValue,
PULONG OldValue);
NTSTATUS FAT32GetNextCluster(PDEVICE_EXTENSION DeviceExt,
ULONG CurrentCluster,
PULONG NextCluster);
NTSTATUS FAT32FindAndMarkAvailableCluster(PDEVICE_EXTENSION DeviceExt,
PULONG Cluster);
NTSTATUS FAT32WriteCluster(PDEVICE_EXTENSION DeviceExt,
ULONG ClusterToWrite,
ULONG NewValue,
PULONG OldValue);
NTSTATUS OffsetToCluster (PDEVICE_EXTENSION DeviceExt,
ULONG FirstCluster,
ULONG FileOffset,
PULONG Cluster,
BOOLEAN Extend);
ULONGLONG ClusterToSector (PDEVICE_EXTENSION DeviceExt,
ULONG Cluster);
NTSTATUS GetNextCluster (PDEVICE_EXTENSION DeviceExt,
ULONG CurrentCluster,
PULONG NextCluster);
NTSTATUS GetNextClusterExtend (PDEVICE_EXTENSION DeviceExt,
ULONG CurrentCluster,
PULONG NextCluster);
NTSTATUS CountAvailableClusters (PDEVICE_EXTENSION DeviceExt,
PLARGE_INTEGER Clusters);
NTSTATUS
WriteCluster(PDEVICE_EXTENSION DeviceExt,
ULONG ClusterToWrite,
ULONG NewValue);
/* ------------------------------------------------------ direntry.c */
ULONG vfatDirEntryGetFirstCluster (PDEVICE_EXTENSION pDeviceExt,
PDIR_ENTRY pDirEntry);
BOOLEAN VfatIsDirectoryEmpty(PVFATFCB Fcb);
NTSTATUS FATGetNextDirEntry(PVOID * pContext,
PVOID * pPage,
IN PVFATFCB pDirFcb,
IN PVFAT_DIRENTRY_CONTEXT DirContext,
BOOLEAN First);
NTSTATUS FATXGetNextDirEntry(PVOID * pContext,
PVOID * pPage,
IN PVFATFCB pDirFcb,
IN PVFAT_DIRENTRY_CONTEXT DirContext,
BOOLEAN First);
/* ----------------------------------------------------------- fcb.c */
PVFATFCB vfatNewFCB (PDEVICE_EXTENSION pVCB,
PUNICODE_STRING pFileNameU);
VOID vfatDestroyFCB (PVFATFCB pFCB);
VOID vfatDestroyCCB(PVFATCCB pCcb);
VOID vfatGrabFCB (PDEVICE_EXTENSION pVCB,
PVFATFCB pFCB);
VOID vfatReleaseFCB (PDEVICE_EXTENSION pVCB,
PVFATFCB pFCB);
VOID vfatAddFCBToTable (PDEVICE_EXTENSION pVCB,
PVFATFCB pFCB);
PVFATFCB vfatGrabFCBFromTable (PDEVICE_EXTENSION pDeviceExt,
PUNICODE_STRING pFileNameU);
PVFATFCB vfatMakeRootFCB (PDEVICE_EXTENSION pVCB);
PVFATFCB vfatOpenRootFCB (PDEVICE_EXTENSION pVCB);
BOOLEAN vfatFCBIsDirectory (PVFATFCB FCB);
BOOLEAN vfatFCBIsRoot(PVFATFCB FCB);
NTSTATUS vfatAttachFCBToFileObject (PDEVICE_EXTENSION vcb,
PVFATFCB fcb,
PFILE_OBJECT fileObject);
NTSTATUS vfatDirFindFile (PDEVICE_EXTENSION pVCB,
PVFATFCB parentFCB,
PUNICODE_STRING FileToFindU,
PVFATFCB * fileFCB);
NTSTATUS vfatGetFCBForFile (PDEVICE_EXTENSION pVCB,
PVFATFCB *pParentFCB,
PVFATFCB *pFCB,
PUNICODE_STRING pFileNameU);
NTSTATUS vfatMakeFCBFromDirEntry (PVCB vcb,
PVFATFCB directoryFCB,
PVFAT_DIRENTRY_CONTEXT DirContext,
PVFATFCB * fileFCB);
/* ------------------------------------------------------------ rw.c */
NTSTATUS VfatRead (PVFAT_IRP_CONTEXT IrpContext);
NTSTATUS VfatWrite (PVFAT_IRP_CONTEXT IrpContext);
NTSTATUS NextCluster(PDEVICE_EXTENSION DeviceExt,
ULONG FirstCluster,
PULONG CurrentCluster,
BOOLEAN Extend);
/* ----------------------------------------------------------- misc.c */
NTSTATUS VfatQueueRequest(PVFAT_IRP_CONTEXT IrpContext);
PVFAT_IRP_CONTEXT VfatAllocateIrpContext(PDEVICE_OBJECT DeviceObject,
PIRP Irp);
VOID VfatFreeIrpContext(PVFAT_IRP_CONTEXT IrpContext);
NTSTATUS STDCALL VfatBuildRequest (PDEVICE_OBJECT DeviceObject,
PIRP Irp);
PVOID VfatGetUserBuffer(IN PIRP);
NTSTATUS VfatLockUserBuffer(IN PIRP, IN ULONG,
IN LOCK_OPERATION);
NTSTATUS
VfatSetExtendedAttributes(PFILE_OBJECT FileObject,
PVOID Ea,
ULONG EaLength);
/* ------------------------------------------------------------- flush.c */
NTSTATUS VfatFlush(PVFAT_IRP_CONTEXT IrpContext);
NTSTATUS VfatFlushVolume(PDEVICE_EXTENSION DeviceExt, PVFATFCB VolumeFcb);
/* EOF */
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