5 #define USE_ROS_CC_AND_FS
7 #define ROUND_DOWN(n, align) \
8 (((ULONG)n) & ~((align) - 1l))
10 #define ROUND_UP(n, align) \
11 ROUND_DOWN(((ULONG)n) + (align) - 1, (align))
16 unsigned char magic0
, res0
, magic1
;
17 unsigned char OEMName
[8];
18 unsigned short BytesPerSector
;
19 unsigned char SectorsPerCluster
;
20 unsigned short ReservedSectors
;
21 unsigned char FATCount
;
22 unsigned short RootEntries
, Sectors
;
24 unsigned short FATSectors
, SectorsPerTrack
, Heads
;
25 unsigned long HiddenSectors
, SectorsHuge
;
26 unsigned char Drive
, Res1
, Sig
;
27 unsigned long VolumeID
;
28 unsigned char VolumeLabel
[11], SysType
[8];
29 unsigned char Res2
[448];
30 unsigned short Signatur1
;
35 unsigned char magic0
, res0
, magic1
; // 0
36 unsigned char OEMName
[8]; // 3
37 unsigned short BytesPerSector
; // 11
38 unsigned char SectorsPerCluster
; // 13
39 unsigned short ReservedSectors
; // 14
40 unsigned char FATCount
; // 16
41 unsigned short RootEntries
, Sectors
; // 17
42 unsigned char Media
; // 21
43 unsigned short FATSectors
, SectorsPerTrack
, Heads
; // 22
44 unsigned long HiddenSectors
, SectorsHuge
; // 28
45 unsigned long FATSectors32
; // 36
46 unsigned short ExtFlag
; // 40
47 unsigned short FSVersion
; // 42
48 unsigned long RootCluster
; // 44
49 unsigned short FSInfoSector
; // 48
50 unsigned short BootBackup
; // 50
51 unsigned char Res3
[12]; // 52
52 unsigned char Drive
; // 64
53 unsigned char Res4
; // 65
54 unsigned char ExtBootSignature
; // 66
55 unsigned long VolumeID
; // 67
56 unsigned char VolumeLabel
[11], SysType
[8]; // 71
57 unsigned char Res2
[420]; // 90
58 unsigned short Signature1
; // 510
61 struct _BootSectorFatX
63 unsigned char SysType
[4]; // 0
64 unsigned long VolumeID
; // 4
65 unsigned long SectorsPerCluster
; // 8
66 unsigned short FATCount
; // 12
67 unsigned long Unknown
; // 14
68 unsigned char Unused
[4078]; // 18
73 unsigned long ExtBootSignature2
; // 0
74 unsigned char Res6
[480]; // 4
75 unsigned long FSINFOSignature
; // 484
76 unsigned long FreeCluster
; // 488
77 unsigned long NextCluster
; // 492
78 unsigned char Res7
[12]; // 496
79 unsigned long Signatur2
; // 508
82 typedef struct _BootSector BootSector
;
88 struct { unsigned char Filename
[8], Ext
[3]; };
89 unsigned char ShortName
[11];
93 unsigned char CreationTimeMs
;
94 unsigned short CreationTime
,CreationDate
,AccessDate
;
97 unsigned short FirstClusterHigh
; // FAT32
98 unsigned short ExtendedAttributes
; // FAT12/FAT16
100 unsigned short UpdateTime
; //time create/update
101 unsigned short UpdateDate
; //date create/update
102 unsigned short FirstCluster
;
103 unsigned long FileSize
;
106 #define FAT_EAFILE "EA DATA. SF"
108 typedef struct _EAFileHeader FAT_EA_FILE_HEADER
, *PFAT_EA_FILE_HEADER
;
112 unsigned short Signature
; // ED
113 unsigned short Unknown
[15];
114 unsigned short EASetTable
[240];
117 typedef struct _EASetHeader FAT_EA_SET_HEADER
, *PFAT_EA_SET_HEADER
;
121 unsigned short Signature
; // EA
122 unsigned short Offset
; // relative offset, same value as in the EASetTable
123 unsigned short Unknown1
[2];
124 char TargetFileName
[12];
125 unsigned short Unknown2
[3];
126 unsigned int EALength
;
130 typedef struct _EAHeader FAT_EA_HEADER
, *PFAT_EA_HEADER
;
134 unsigned char Unknown
;
135 unsigned char EANameLength
;
136 unsigned short EAValueLength
;
141 typedef struct _FATDirEntry FAT_DIR_ENTRY
, *PFAT_DIR_ENTRY
;
145 unsigned char FilenameLength
; // 0
146 unsigned char Attrib
; // 1
147 unsigned char Filename
[42]; // 2
148 unsigned long FirstCluster
; // 44
149 unsigned long FileSize
; // 48
150 unsigned short UpdateTime
; // 52
151 unsigned short UpdateDate
; // 54
152 unsigned short CreationTime
; // 56
153 unsigned short CreationDate
; // 58
154 unsigned short AccessTime
; // 60
155 unsigned short AccessDate
; // 62
160 unsigned char id
; // sequence number for slot
161 WCHAR name0_4
[5]; // first 5 characters in name
162 unsigned char attr
; // attribute byte
163 unsigned char reserved
; // always 0
164 unsigned char alias_checksum
; // checksum for 8.3 alias
165 WCHAR name5_10
[6]; // 6 more characters in name
166 unsigned char start
[2]; // starting cluster number
167 WCHAR name11_12
[2]; // last 2 characters in name
170 typedef struct _slot slot
;
174 #define VFAT_CASE_LOWER_BASE 8 // base is lower case
175 #define VFAT_CASE_LOWER_EXT 16 // extension is lower case
177 #define LONGNAME_MAX_LENGTH 256 // max length for a long filename
179 #define ENTRY_DELETED(DeviceExt, DirEntry) ((DeviceExt)->Flags & VCB_IS_FATX ? FATX_ENTRY_DELETED(&((DirEntry)->FatX)) : FAT_ENTRY_DELETED(&((DirEntry)->Fat)))
180 #define ENTRY_VOLUME(DeviceExt, DirEntry) ((DeviceExt)->Flags & VCB_IS_FATX ? FATX_ENTRY_VOLUME(&((DirEntry)->FatX)) : FAT_ENTRY_VOLUME(&((DirEntry)->Fat)))
181 #define ENTRY_END(DeviceExt, DirEntry) ((DeviceExt)->Flags & VCB_IS_FATX ? FATX_ENTRY_END(&((DirEntry)->FatX)) : FAT_ENTRY_END(&((DirEntry)->Fat)))
183 #define FAT_ENTRY_DELETED(DirEntry) ((DirEntry)->Filename[0] == 0xe5)
184 #define FAT_ENTRY_END(DirEntry) ((DirEntry)->Filename[0] == 0)
185 #define FAT_ENTRY_LONG(DirEntry) (((DirEntry)->Attrib & 0x3f) == 0x0f)
186 #define FAT_ENTRY_VOLUME(DirEntry) (((DirEntry)->Attrib & 0x1f) == 0x08)
188 #define FATX_ENTRY_DELETED(DirEntry) ((DirEntry)->FilenameLength == 0xe5)
189 #define FATX_ENTRY_END(DirEntry) ((DirEntry)->FilenameLength == 0xff)
190 #define FATX_ENTRY_LONG(DirEntry) (FALSE)
191 #define FATX_ENTRY_VOLUME(DirEntry) (((DirEntry)->Attrib & 0x1f) == 0x08)
193 #define FAT_ENTRIES_PER_PAGE (PAGE_SIZE / sizeof (FAT_DIR_ENTRY))
194 #define FATX_ENTRIES_PER_PAGE (PAGE_SIZE / sizeof (FATX_DIR_ENTRY))
196 typedef struct _FATXDirEntry FATX_DIR_ENTRY
, *PFATX_DIR_ENTRY
;
204 typedef union _DIR_ENTRY DIR_ENTRY
, *PDIR_ENTRY
;
206 #define BLOCKSIZE 512
214 #define VCB_VOLUME_LOCKED 0x0001
215 #define VCB_DISMOUNT_PENDING 0x0002
216 #define VCB_IS_FATX 0x0004
217 #define VCB_IS_DIRTY 0x4000 /* Volume is dirty */
218 #define VCB_CLEAR_DIRTY 0x8000 /* Clean dirty flag at shutdown */
226 ULONG rootDirectorySectors
;
230 ULONG SectorsPerCluster
;
231 ULONG BytesPerSector
;
232 ULONG BytesPerCluster
;
233 ULONG NumberOfClusters
;
237 } FATINFO
, *PFATINFO
;
240 struct _VFAT_DIRENTRY_CONTEXT
;
242 typedef struct _HASHENTRY
245 struct _VFATFCB
* self
;
246 struct _HASHENTRY
* next
;
250 #define FCB_HASH_TABLE_SIZE 65536
252 typedef struct DEVICE_EXTENSION
*PDEVICE_EXTENSION
;
254 typedef NTSTATUS (*PGET_NEXT_CLUSTER
)(PDEVICE_EXTENSION
,ULONG
,PULONG
);
255 typedef NTSTATUS (*PFIND_AND_MARK_AVAILABLE_CLUSTER
)(PDEVICE_EXTENSION
,PULONG
);
256 typedef NTSTATUS (*PWRITE_CLUSTER
)(PDEVICE_EXTENSION
,ULONG
,ULONG
,PULONG
);
258 typedef NTSTATUS (*PGET_NEXT_DIR_ENTRY
)(PVOID
*,PVOID
*,struct _VFATFCB
*,struct _VFAT_DIRENTRY_CONTEXT
*,BOOLEAN
);
260 typedef struct DEVICE_EXTENSION
262 ERESOURCE DirResource
;
263 ERESOURCE FatResource
;
265 KSPIN_LOCK FcbListLock
;
266 LIST_ENTRY FcbListHead
;
268 struct _HASHENTRY
** FcbHashTable
;
270 PDEVICE_OBJECT StorageDevice
;
271 PFILE_OBJECT FATFileObject
;
273 ULONG LastAvailableCluster
;
274 ULONG AvailableClusters
;
275 BOOLEAN AvailableClustersValid
;
277 struct _VFATFCB
* VolumeFcb
;
279 /* Pointers to functions for manipulating FAT. */
280 PGET_NEXT_CLUSTER GetNextCluster
;
281 PFIND_AND_MARK_AVAILABLE_CLUSTER FindAndMarkAvailableCluster
;
282 PWRITE_CLUSTER WriteCluster
;
283 ULONG CleanShutBitMask
;
285 /* Pointers to functions for manipulating directory entries. */
286 PGET_NEXT_DIR_ENTRY GetNextDirEntry
;
290 LIST_ENTRY VolumeListEntry
;
291 } DEVICE_EXTENSION
, VCB
, *PVCB
;
295 PDRIVER_OBJECT DriverObject
;
296 PDEVICE_OBJECT DeviceObject
;
298 ERESOURCE VolumeListLock
;
299 LIST_ENTRY VolumeListHead
;
300 NPAGED_LOOKASIDE_LIST FcbLookasideList
;
301 NPAGED_LOOKASIDE_LIST CcbLookasideList
;
302 NPAGED_LOOKASIDE_LIST IrpContextLookasideList
;
303 FAST_IO_DISPATCH FastIoDispatch
;
304 CACHE_MANAGER_CALLBACKS CacheMgrCallbacks
;
305 } VFAT_GLOBAL_DATA
, *PVFAT_GLOBAL_DATA
;
307 extern PVFAT_GLOBAL_DATA VfatGlobalData
;
309 #define FCB_CACHE_INITIALIZED 0x0001
310 #define FCB_DELETE_PENDING 0x0002
311 #define FCB_IS_FAT 0x0004
312 #define FCB_IS_PAGE_FILE 0x0008
313 #define FCB_IS_VOLUME 0x0010
314 #define FCB_IS_DIRTY 0x0020
315 #define FCB_IS_FATX_ENTRY 0x0040
317 typedef struct _VFATFCB
319 /* FCB header required by ROS/NT */
320 FSRTL_COMMON_FCB_HEADER RFCB
;
321 SECTION_OBJECT_POINTERS SectionObjectPointers
;
322 ERESOURCE MainResource
;
323 ERESOURCE PagingIoResource
;
324 /* end FCB header required by ROS/NT */
326 /* directory entry for this file or directory */
329 /* Pointer to attributes in entry */
332 /* long file name, points into PathNameBuffer */
333 UNICODE_STRING LongNameU
;
335 /* short file name */
336 UNICODE_STRING ShortNameU
;
338 /* directory name, points into PathNameBuffer */
339 UNICODE_STRING DirNameU
;
341 /* path + long file name 260 max*/
342 UNICODE_STRING PathNameU
;
344 /* buffer for PathNameU */
345 PWCHAR PathNameBuffer
;
347 /* buffer for ShortNameU */
348 WCHAR ShortNameBuffer
[13];
353 /* List of FCB's for this volume */
354 LIST_ENTRY FcbListEntry
;
356 /* pointer to the parent fcb */
357 struct _VFATFCB
* parentFcb
;
359 /* Flags for the fcb */
362 /* pointer to the file object which has initialized the fcb */
363 PFILE_OBJECT FileObject
;
365 /* Directory index for the short name entry */
368 /* Directory index where the long name starts */
371 /* Share access for the file object */
372 SHARE_ACCESS FCBShareAccess
;
374 /* Incremented on IRP_MJ_CREATE, decremented on IRP_MJ_CLEANUP */
375 ULONG OpenHandleCount
;
377 /* Entry into the hash table for the path + long name */
380 /* Entry into the hash table for the path + short name */
383 /* List of byte-range locks for this file */
387 * Optimalization: caching of last read/write cluster+offset pair. Can't
388 * be in VFATCCB because it must be reset everytime the allocated clusters
391 FAST_MUTEX LastMutex
;
394 } VFATFCB
, *PVFATFCB
;
396 typedef struct _VFATCCB
398 LARGE_INTEGER CurrentByteOffset
;
399 /* for DirectoryControl */
401 /* for DirectoryControl */
402 UNICODE_STRING SearchPattern
;
403 } VFATCCB
, *PVFATCCB
;
405 #define TAG_CCB 'BCCV'
406 #define TAG_FCB 'BCFV'
407 #define TAG_IRP 'PRIV'
408 #define TAG_VFAT 'TAFV'
410 #define ENTRIES_PER_SECTOR (BLOCKSIZE / sizeof(FATDirEntry))
412 typedef struct __DOSTIME
420 typedef struct __DOSDATE
428 #define IRPCONTEXT_CANWAIT 0x0001
429 #define IRPCONTEXT_PENDINGRETURNED 0x0002
434 PDEVICE_OBJECT DeviceObject
;
435 PDEVICE_EXTENSION DeviceExt
;
437 WORK_QUEUE_ITEM WorkQueueItem
;
438 PIO_STACK_LOCATION Stack
;
441 PFILE_OBJECT FileObject
;
444 } VFAT_IRP_CONTEXT
, *PVFAT_IRP_CONTEXT
;
446 typedef struct _VFAT_DIRENTRY_CONTEXT
451 UNICODE_STRING LongNameU
;
452 UNICODE_STRING ShortNameU
;
453 } VFAT_DIRENTRY_CONTEXT
, *PVFAT_DIRENTRY_CONTEXT
;
456 /* ------------------------------------------------------ shutdown.c */
458 DRIVER_DISPATCH VfatShutdown
;
459 NTSTATUS NTAPI
VfatShutdown (PDEVICE_OBJECT DeviceObject
,
462 /* -------------------------------------------------------- volume.c */
464 NTSTATUS
VfatQueryVolumeInformation (PVFAT_IRP_CONTEXT IrpContext
);
466 NTSTATUS
VfatSetVolumeInformation (PVFAT_IRP_CONTEXT IrpContext
);
468 /* ------------------------------------------------------ blockdev.c */
470 NTSTATUS
VfatReadDisk(IN PDEVICE_OBJECT pDeviceObject
,
471 IN PLARGE_INTEGER ReadOffset
,
474 IN BOOLEAN Override
);
476 NTSTATUS
VfatReadDiskPartial (IN PVFAT_IRP_CONTEXT IrpContext
,
477 IN PLARGE_INTEGER ReadOffset
,
479 IN ULONG BufferOffset
,
482 NTSTATUS
VfatWriteDiskPartial(IN PVFAT_IRP_CONTEXT IrpContext
,
483 IN PLARGE_INTEGER WriteOffset
,
484 IN ULONG WriteLength
,
485 IN ULONG BufferOffset
,
488 NTSTATUS
VfatBlockDeviceIoControl (IN PDEVICE_OBJECT DeviceObject
,
490 IN PVOID InputBuffer
,
491 IN ULONG InputBufferSize
,
492 IN OUT PVOID OutputBuffer
,
493 IN OUT PULONG pOutputBufferSize
,
494 IN BOOLEAN Override
);
496 /* ----------------------------------------------------------- dir.c */
498 NTSTATUS
VfatDirectoryControl (PVFAT_IRP_CONTEXT
);
500 BOOLEAN
FsdDosDateTimeToSystemTime (PDEVICE_EXTENSION DeviceExt
,
503 PLARGE_INTEGER SystemTime
);
505 BOOLEAN
FsdSystemTimeToDosDateTime (PDEVICE_EXTENSION DeviceExt
,
506 PLARGE_INTEGER SystemTime
,
510 /* -------------------------------------------------------- create.c */
512 NTSTATUS
VfatCreate (PVFAT_IRP_CONTEXT IrpContext
);
514 NTSTATUS
FindFile (PDEVICE_EXTENSION DeviceExt
,
516 PUNICODE_STRING FileToFindU
,
517 PVFAT_DIRENTRY_CONTEXT DirContext
,
520 VOID
vfat8Dot3ToString (PFAT_DIR_ENTRY pEntry
,
521 PUNICODE_STRING NameU
);
523 NTSTATUS
ReadVolumeLabel(PDEVICE_EXTENSION DeviceExt
,
526 /* --------------------------------------------------------- close.c */
528 NTSTATUS
VfatClose (PVFAT_IRP_CONTEXT IrpContext
);
530 NTSTATUS
VfatCloseFile(PDEVICE_EXTENSION DeviceExt
,
531 PFILE_OBJECT FileObject
);
533 /* ------------------------------------------------------- cleanup.c */
535 NTSTATUS
VfatCleanup (PVFAT_IRP_CONTEXT IrpContext
);
537 /* --------------------------------------------------------- fastio.c */
540 VfatInitFastIoRoutines(PFAST_IO_DISPATCH FastIoDispatch
);
543 VfatAcquireForLazyWrite(IN PVOID Context
,
547 VfatReleaseFromLazyWrite(IN PVOID Context
);
550 VfatAcquireForReadAhead(IN PVOID Context
,
554 VfatReleaseFromReadAhead(IN PVOID Context
);
556 /* --------------------------------------------------------- fsctl.c */
558 NTSTATUS
VfatFileSystemControl (PVFAT_IRP_CONTEXT IrpContext
);
560 /* --------------------------------------------------------- finfo.c */
562 NTSTATUS
VfatQueryInformation (PVFAT_IRP_CONTEXT IrpContext
);
564 NTSTATUS
VfatSetInformation (PVFAT_IRP_CONTEXT IrpContext
);
567 VfatSetAllocationSizeInformation(PFILE_OBJECT FileObject
,
569 PDEVICE_EXTENSION DeviceExt
,
570 PLARGE_INTEGER AllocationSize
);
572 /* --------------------------------------------------------- iface.c */
574 NTSTATUS NTAPI
DriverEntry (PDRIVER_OBJECT DriverObject
,
575 PUNICODE_STRING RegistryPath
);
577 /* --------------------------------------------------------- dirwr.c */
579 NTSTATUS
VfatAddEntry (PDEVICE_EXTENSION DeviceExt
,
580 PUNICODE_STRING PathNameU
,
583 ULONG RequestedOptions
,
586 NTSTATUS
VfatUpdateEntry (PVFATFCB pFcb
);
588 NTSTATUS
VfatDelEntry(PDEVICE_EXTENSION
, PVFATFCB
);
591 vfatFindDirSpace(PDEVICE_EXTENSION DeviceExt
,
596 /* -------------------------------------------------------- string.c */
599 vfatSplitPathName(PUNICODE_STRING PathNameU
,
600 PUNICODE_STRING DirNameU
,
601 PUNICODE_STRING FileNameU
);
603 BOOLEAN
vfatIsLongIllegal(WCHAR c
);
605 BOOLEAN
wstrcmpjoki (PWSTR s1
,
608 /* ----------------------------------------------------------- fat.c */
610 NTSTATUS
FAT12GetNextCluster(PDEVICE_EXTENSION DeviceExt
,
611 ULONG CurrentCluster
,
614 NTSTATUS
FAT12FindAndMarkAvailableCluster(PDEVICE_EXTENSION DeviceExt
,
617 NTSTATUS
FAT12WriteCluster(PDEVICE_EXTENSION DeviceExt
,
618 ULONG ClusterToWrite
,
622 NTSTATUS
FAT16GetNextCluster(PDEVICE_EXTENSION DeviceExt
,
623 ULONG CurrentCluster
,
626 NTSTATUS
FAT16FindAndMarkAvailableCluster(PDEVICE_EXTENSION DeviceExt
,
629 NTSTATUS
FAT16WriteCluster(PDEVICE_EXTENSION DeviceExt
,
630 ULONG ClusterToWrite
,
634 NTSTATUS
FAT32GetNextCluster(PDEVICE_EXTENSION DeviceExt
,
635 ULONG CurrentCluster
,
638 NTSTATUS
FAT32FindAndMarkAvailableCluster(PDEVICE_EXTENSION DeviceExt
,
641 NTSTATUS
FAT32WriteCluster(PDEVICE_EXTENSION DeviceExt
,
642 ULONG ClusterToWrite
,
646 NTSTATUS
OffsetToCluster (PDEVICE_EXTENSION DeviceExt
,
652 ULONGLONG
ClusterToSector (PDEVICE_EXTENSION DeviceExt
,
655 NTSTATUS
GetNextCluster (PDEVICE_EXTENSION DeviceExt
,
656 ULONG CurrentCluster
,
659 NTSTATUS
GetNextClusterExtend (PDEVICE_EXTENSION DeviceExt
,
660 ULONG CurrentCluster
,
663 NTSTATUS
CountAvailableClusters (PDEVICE_EXTENSION DeviceExt
,
664 PLARGE_INTEGER Clusters
);
667 WriteCluster(PDEVICE_EXTENSION DeviceExt
,
668 ULONG ClusterToWrite
,
671 /* ------------------------------------------------------ direntry.c */
673 ULONG
vfatDirEntryGetFirstCluster (PDEVICE_EXTENSION pDeviceExt
,
674 PDIR_ENTRY pDirEntry
);
676 BOOLEAN
VfatIsDirectoryEmpty(PVFATFCB Fcb
);
678 NTSTATUS
FATGetNextDirEntry(PVOID
* pContext
,
681 IN PVFAT_DIRENTRY_CONTEXT DirContext
,
684 NTSTATUS
FATXGetNextDirEntry(PVOID
* pContext
,
687 IN PVFAT_DIRENTRY_CONTEXT DirContext
,
690 /* ----------------------------------------------------------- fcb.c */
692 PVFATFCB
vfatNewFCB (PDEVICE_EXTENSION pVCB
,
693 PUNICODE_STRING pFileNameU
);
695 VOID
vfatDestroyFCB (PVFATFCB pFCB
);
697 VOID
vfatDestroyCCB(PVFATCCB pCcb
);
699 VOID
vfatGrabFCB (PDEVICE_EXTENSION pVCB
,
702 VOID
vfatReleaseFCB (PDEVICE_EXTENSION pVCB
,
705 VOID
vfatAddFCBToTable (PDEVICE_EXTENSION pVCB
,
708 PVFATFCB
vfatGrabFCBFromTable (PDEVICE_EXTENSION pDeviceExt
,
709 PUNICODE_STRING pFileNameU
);
711 PVFATFCB
vfatMakeRootFCB (PDEVICE_EXTENSION pVCB
);
713 PVFATFCB
vfatOpenRootFCB (PDEVICE_EXTENSION pVCB
);
715 BOOLEAN
vfatFCBIsDirectory (PVFATFCB FCB
);
717 BOOLEAN
vfatFCBIsRoot(PVFATFCB FCB
);
719 NTSTATUS
vfatAttachFCBToFileObject (PDEVICE_EXTENSION vcb
,
721 PFILE_OBJECT fileObject
);
723 NTSTATUS
vfatDirFindFile (PDEVICE_EXTENSION pVCB
,
725 PUNICODE_STRING FileToFindU
,
728 NTSTATUS
vfatGetFCBForFile (PDEVICE_EXTENSION pVCB
,
729 PVFATFCB
*pParentFCB
,
731 PUNICODE_STRING pFileNameU
);
733 NTSTATUS
vfatMakeFCBFromDirEntry (PVCB vcb
,
734 PVFATFCB directoryFCB
,
735 PVFAT_DIRENTRY_CONTEXT DirContext
,
738 /* ------------------------------------------------------------ rw.c */
740 NTSTATUS
VfatRead (PVFAT_IRP_CONTEXT IrpContext
);
742 NTSTATUS
VfatWrite (PVFAT_IRP_CONTEXT IrpContext
);
744 NTSTATUS
NextCluster(PDEVICE_EXTENSION DeviceExt
,
746 PULONG CurrentCluster
,
749 /* ----------------------------------------------------------- misc.c */
751 NTSTATUS
VfatQueueRequest(PVFAT_IRP_CONTEXT IrpContext
);
753 PVFAT_IRP_CONTEXT
VfatAllocateIrpContext(PDEVICE_OBJECT DeviceObject
,
756 VOID
VfatFreeIrpContext(PVFAT_IRP_CONTEXT IrpContext
);
758 DRIVER_DISPATCH VfatBuildRequest
;
759 NTSTATUS NTAPI
VfatBuildRequest (PDEVICE_OBJECT DeviceObject
,
762 PVOID
VfatGetUserBuffer(IN PIRP
);
764 NTSTATUS
VfatLockUserBuffer(IN PIRP
, IN ULONG
,
768 VfatSetExtendedAttributes(PFILE_OBJECT FileObject
,
771 /* ------------------------------------------------------------- flush.c */
773 NTSTATUS
VfatFlush(PVFAT_IRP_CONTEXT IrpContext
);
775 NTSTATUS
VfatFlushVolume(PDEVICE_EXTENSION DeviceExt
, PVFATFCB VolumeFcb
);