reactos/drivers/filesystems/fastfat/vfat.h

   1 #ifndef _FASTFAT_PCH_
   2 #define _FASTFAT_PCH_
   3
   4 #include <ntifs.h>
   5 #include <ntdddisk.h>
   6 #include <dos.h>
   7 #include <pseh/pseh2.h>
   8
   9 #define USE_ROS_CC_AND_FS
  10
  11 #define ROUND_DOWN(n, align) \
  12     (((ULONG)n) & ~((align) - 1l))
  13
  14 #define ROUND_UP(n, align) \
  15     ROUND_DOWN(((ULONG)n) + (align) - 1, (align))
  16
  17 #include <pshpack1.h>
  18 struct _BootSector
  19 {
  20     unsigned char  magic0, res0, magic1;
  21     unsigned char  OEMName[8];
  22     unsigned short BytesPerSector;
  23     unsigned char  SectorsPerCluster;
  24     unsigned short ReservedSectors;
  25     unsigned char  FATCount;
  26     unsigned short RootEntries, Sectors;
  27     unsigned char  Media;
  28     unsigned short FATSectors, SectorsPerTrack, Heads;
  29     unsigned long  HiddenSectors, SectorsHuge;
  30     unsigned char  Drive, Res1, Sig;
  31     unsigned long  VolumeID;
  32     unsigned char  VolumeLabel[11], SysType[8];
  33     unsigned char  Res2[448];
  34     unsigned short Signatur1;
  35 };
  36
  37 struct _BootSector32
  38 {
  39     unsigned char  magic0, res0, magic1;                        // 0
  40     unsigned char  OEMName[8];                          // 3
  41     unsigned short BytesPerSector;                      // 11
  42     unsigned char  SectorsPerCluster;                   // 13
  43     unsigned short ReservedSectors;                     // 14
  44     unsigned char  FATCount;                            // 16
  45     unsigned short RootEntries, Sectors;                        // 17
  46     unsigned char  Media;                                       // 21
  47     unsigned short FATSectors, SectorsPerTrack, Heads;  // 22
  48     unsigned long  HiddenSectors, SectorsHuge;          // 28
  49     unsigned long  FATSectors32;                                // 36
  50     unsigned short ExtFlag;                             // 40
  51     unsigned short FSVersion;                           // 42
  52     unsigned long  RootCluster;                         // 44
  53     unsigned short FSInfoSector;                                // 48
  54     unsigned short BootBackup;                          // 50
  55     unsigned char  Res3[12];                            // 52
  56     unsigned char  Drive;                                       // 64
  57     unsigned char  Res4;                                        // 65
  58     unsigned char  ExtBootSignature;                    // 66
  59     unsigned long  VolumeID;                            // 67
  60     unsigned char  VolumeLabel[11], SysType[8];         // 71
  61     unsigned char  Res2[420];                           // 90
  62     unsigned short Signature1;                          // 510
  63 };
  64
  65 struct _BootSectorFatX
  66 {
  67     unsigned char SysType[4];        // 0
  68     unsigned long VolumeID;          // 4
  69     unsigned long SectorsPerCluster; // 8
  70     unsigned short FATCount;         // 12
  71     unsigned long Unknown;           // 14
  72     unsigned char Unused[4078];      // 18
  73 };
  74
  75 struct _FsInfoSector
  76 {
  77     unsigned long  ExtBootSignature2;                   // 0
  78     unsigned char  Res6[480];                           // 4
  79     unsigned long  FSINFOSignature;                     // 484
  80     unsigned long  FreeCluster;                         // 488
  81     unsigned long  NextCluster;                         // 492
  82     unsigned char  Res7[12];                            // 496
  83     unsigned long  Signatur2;                           // 508
  84 };
  85
  86 typedef struct _BootSector BootSector;
  87
  88 struct _FATDirEntry
  89 {
  90     union
  91     {
  92         struct { unsigned char Filename[8], Ext[3]; };
  93         unsigned char ShortName[11];
  94     };
  95     unsigned char  Attrib;
  96     unsigned char  lCase;
  97     unsigned char  CreationTimeMs;
  98     unsigned short CreationTime,CreationDate,AccessDate;
  99     union
 100     {
 101         unsigned short FirstClusterHigh; // FAT32
 102         unsigned short ExtendedAttributes; // FAT12/FAT16
 103     };
 104     unsigned short UpdateTime;                            //time create/update
 105     unsigned short UpdateDate;                            //date create/update
 106     unsigned short FirstCluster;
 107     unsigned long  FileSize;
 108 };
 109
 110 #define FAT_EAFILE  "EA DATA. SF"
 111
 112 typedef struct _EAFileHeader FAT_EA_FILE_HEADER, *PFAT_EA_FILE_HEADER;
 113
 114 struct _EAFileHeader
 115 {
 116     unsigned short Signature; // ED
 117     unsigned short Unknown[15];
 118     unsigned short EASetTable[240];
 119 };
 120
 121 typedef struct _EASetHeader FAT_EA_SET_HEADER, *PFAT_EA_SET_HEADER;
 122
 123 struct _EASetHeader
 124 {
 125     unsigned short Signature; // EA
 126     unsigned short Offset; // relative offset, same value as in the EASetTable
 127     unsigned short Unknown1[2];
 128     char TargetFileName[12];
 129     unsigned short Unknown2[3];
 130     unsigned int EALength;
 131     // EA Header
 132 };
 133
 134 typedef struct _EAHeader FAT_EA_HEADER, *PFAT_EA_HEADER;
 135
 136 struct _EAHeader
 137 {
 138     unsigned char Unknown;
 139     unsigned char EANameLength;
 140     unsigned short EAValueLength;
 141     // Name Data
 142     // Value Data
 143 };
 144
 145 typedef struct _FATDirEntry FAT_DIR_ENTRY, *PFAT_DIR_ENTRY;
 146
 147 struct _FATXDirEntry
 148 {
 149     unsigned char FilenameLength; // 0
 150     unsigned char Attrib;         // 1
 151     unsigned char Filename[42];   // 2
 152     unsigned long FirstCluster;   // 44
 153     unsigned long FileSize;       // 48
 154     unsigned short UpdateTime;    // 52
 155     unsigned short UpdateDate;    // 54
 156     unsigned short CreationTime;  // 56
 157     unsigned short CreationDate;  // 58
 158     unsigned short AccessTime;    // 60
 159     unsigned short AccessDate;    // 62
 160 };
 161
 162 struct _slot
 163 {
 164     unsigned char id;               // sequence number for slot
 165     WCHAR  name0_4[5];              // first 5 characters in name
 166     unsigned char attr;             // attribute byte
 167     unsigned char reserved;         // always 0
 168     unsigned char alias_checksum;   // checksum for 8.3 alias
 169     WCHAR  name5_10[6];             // 6 more characters in name
 170     unsigned char start[2];         // starting cluster number
 171     WCHAR  name11_12[2];            // last 2 characters in name
 172 };
 173
 174 typedef struct _slot slot;
 175
 176 #include <poppack.h>
 177
 178 #define VFAT_CASE_LOWER_BASE    8               // base is lower case
 179 #define VFAT_CASE_LOWER_EXT     16              // extension is lower case
 180
 181 #define LONGNAME_MAX_LENGTH     256             // max length for a long filename
 182
 183 #define ENTRY_DELETED(DeviceExt, DirEntry) ((DeviceExt)->Flags & VCB_IS_FATX ? FATX_ENTRY_DELETED(&((DirEntry)->FatX)) : FAT_ENTRY_DELETED(&((DirEntry)->Fat)))
 184 #define ENTRY_VOLUME(DeviceExt, DirEntry)  ((DeviceExt)->Flags & VCB_IS_FATX ? FATX_ENTRY_VOLUME(&((DirEntry)->FatX)) : FAT_ENTRY_VOLUME(&((DirEntry)->Fat)))
 185 #define ENTRY_END(DeviceExt, DirEntry)     ((DeviceExt)->Flags & VCB_IS_FATX ? FATX_ENTRY_END(&((DirEntry)->FatX)) : FAT_ENTRY_END(&((DirEntry)->Fat)))
 186
 187 #define FAT_ENTRY_DELETED(DirEntry)  ((DirEntry)->Filename[0] == 0xe5)
 188 #define FAT_ENTRY_END(DirEntry)      ((DirEntry)->Filename[0] == 0)
 189 #define FAT_ENTRY_LONG(DirEntry)     (((DirEntry)->Attrib & 0x3f) == 0x0f)
 190 #define FAT_ENTRY_VOLUME(DirEntry)   (((DirEntry)->Attrib & 0x1f) == 0x08)
 191
 192 #define FATX_ENTRY_DELETED(DirEntry) ((DirEntry)->FilenameLength == 0xe5)
 193 #define FATX_ENTRY_END(DirEntry)     ((DirEntry)->FilenameLength == 0xff)
 194 #define FATX_ENTRY_LONG(DirEntry)    (FALSE)
 195 #define FATX_ENTRY_VOLUME(DirEntry)  (((DirEntry)->Attrib & 0x1f) == 0x08)
 196
 197 #define FAT_ENTRIES_PER_PAGE   (PAGE_SIZE / sizeof (FAT_DIR_ENTRY))
 198 #define FATX_ENTRIES_PER_PAGE  (PAGE_SIZE / sizeof (FATX_DIR_ENTRY))
 199
 200 typedef struct _FATXDirEntry FATX_DIR_ENTRY, *PFATX_DIR_ENTRY;
 201
 202 union _DIR_ENTRY
 203 {
 204     FAT_DIR_ENTRY Fat;
 205     FATX_DIR_ENTRY FatX;
 206 };
 207
 208 typedef union _DIR_ENTRY DIR_ENTRY, *PDIR_ENTRY;
 209
 210 #define BLOCKSIZE 512
 211
 212 #define FAT16  (1)
 213 #define FAT12  (2)
 214 #define FAT32  (3)
 215 #define FATX16 (4)
 216 #define FATX32 (5)
 217
 218 #define VCB_VOLUME_LOCKED       0x0001
 219 #define VCB_DISMOUNT_PENDING    0x0002
 220 #define VCB_IS_FATX             0x0004
 221 #define VCB_IS_DIRTY            0x4000 /* Volume is dirty */
 222 #define VCB_CLEAR_DIRTY         0x8000 /* Clean dirty flag at shutdown */
 223
 224 typedef struct
 225 {
 226     ULONG VolumeID;
 227     ULONG FATStart;
 228     ULONG FATCount;
 229     ULONG FATSectors;
 230     ULONG rootDirectorySectors;
 231     ULONG rootStart;
 232     ULONG dataStart;
 233     ULONG RootCluster;
 234     ULONG SectorsPerCluster;
 235     ULONG BytesPerSector;
 236     ULONG BytesPerCluster;
 237     ULONG NumberOfClusters;
 238     ULONG FatType;
 239     ULONG Sectors;
 240     BOOLEAN FixedMedia;
 241 } FATINFO, *PFATINFO;
 242
 243 struct _VFATFCB;
 244 struct _VFAT_DIRENTRY_CONTEXT;
 245
 246 typedef struct _HASHENTRY
 247 {
 248     ULONG Hash;
 249     struct _VFATFCB* self;
 250     struct _HASHENTRY* next;
 251 }
 252 HASHENTRY;
 253
 254 #define FCB_HASH_TABLE_SIZE 65536
 255
 256 typedef struct DEVICE_EXTENSION *PDEVICE_EXTENSION;
 257
 258 typedef NTSTATUS (*PGET_NEXT_CLUSTER)(PDEVICE_EXTENSION,ULONG,PULONG);
 259 typedef NTSTATUS (*PFIND_AND_MARK_AVAILABLE_CLUSTER)(PDEVICE_EXTENSION,PULONG);
 260 typedef NTSTATUS (*PWRITE_CLUSTER)(PDEVICE_EXTENSION,ULONG,ULONG,PULONG);
 261
 262 typedef NTSTATUS (*PGET_NEXT_DIR_ENTRY)(PVOID*,PVOID*,struct _VFATFCB*,struct _VFAT_DIRENTRY_CONTEXT*,BOOLEAN);
 263
 264 typedef struct DEVICE_EXTENSION
 265 {
 266     ERESOURCE DirResource;
 267     ERESOURCE FatResource;
 268
 269     KSPIN_LOCK FcbListLock;
 270     LIST_ENTRY FcbListHead;
 271     ULONG HashTableSize;
 272     struct _HASHENTRY **FcbHashTable;
 273
 274     PDEVICE_OBJECT StorageDevice;
 275     PFILE_OBJECT FATFileObject;
 276     FATINFO FatInfo;
 277     ULONG LastAvailableCluster;
 278     ULONG AvailableClusters;
 279     BOOLEAN AvailableClustersValid;
 280     ULONG Flags;
 281     struct _VFATFCB *VolumeFcb;
 282
 283     /* Pointers to functions for manipulating FAT. */
 284     PGET_NEXT_CLUSTER GetNextCluster;
 285     PFIND_AND_MARK_AVAILABLE_CLUSTER FindAndMarkAvailableCluster;
 286     PWRITE_CLUSTER WriteCluster;
 287     ULONG CleanShutBitMask;
 288
 289     /* Pointers to functions for manipulating directory entries. */
 290     PGET_NEXT_DIR_ENTRY GetNextDirEntry;
 291
 292     ULONG BaseDateYear;
 293
 294     LIST_ENTRY VolumeListEntry;
 295
 296     /* Notifications */
 297     LIST_ENTRY NotifyList;
 298     PNOTIFY_SYNC NotifySync;
 299
 300     /* Incremented on IRP_MJ_CREATE, decremented on IRP_MJ_CLEANUP */
 301     ULONG OpenHandleCount;
 302 } DEVICE_EXTENSION, VCB, *PVCB;
 303
 304 typedef struct
 305 {
 306     PDRIVER_OBJECT DriverObject;
 307     PDEVICE_OBJECT DeviceObject;
 308     ULONG Flags;
 309     ERESOURCE VolumeListLock;
 310     LIST_ENTRY VolumeListHead;
 311     NPAGED_LOOKASIDE_LIST FcbLookasideList;
 312     NPAGED_LOOKASIDE_LIST CcbLookasideList;
 313     NPAGED_LOOKASIDE_LIST IrpContextLookasideList;
 314     FAST_IO_DISPATCH FastIoDispatch;
 315     CACHE_MANAGER_CALLBACKS CacheMgrCallbacks;
 316 } VFAT_GLOBAL_DATA, *PVFAT_GLOBAL_DATA;
 317
 318 extern PVFAT_GLOBAL_DATA VfatGlobalData;
 319
 320 #define FCB_CACHE_INITIALIZED   0x0001
 321 #define FCB_DELETE_PENDING      0x0002
 322 #define FCB_IS_FAT              0x0004
 323 #define FCB_IS_PAGE_FILE        0x0008
 324 #define FCB_IS_VOLUME           0x0010
 325 #define FCB_IS_DIRTY            0x0020
 326 #define FCB_IS_FATX_ENTRY       0x0040
 327
 328 typedef struct _VFATFCB
 329 {
 330     /* FCB header required by ROS/NT */
 331     FSRTL_COMMON_FCB_HEADER RFCB;
 332     SECTION_OBJECT_POINTERS SectionObjectPointers;
 333     ERESOURCE MainResource;
 334     ERESOURCE PagingIoResource;
 335     /* end FCB header required by ROS/NT */
 336
 337     /* directory entry for this file or directory */
 338     DIR_ENTRY entry;
 339
 340     /* Pointer to attributes in entry */
 341     PUCHAR Attributes;
 342
 343     /* long file name, points into PathNameBuffer */
 344     UNICODE_STRING LongNameU;
 345
 346     /* short file name */
 347     UNICODE_STRING ShortNameU;
 348
 349     /* directory name, points into PathNameBuffer */
 350     UNICODE_STRING DirNameU;
 351
 352     /* path + long file name 260 max*/
 353     UNICODE_STRING PathNameU;
 354
 355     /* buffer for PathNameU */
 356     PWCHAR PathNameBuffer;
 357
 358     /* buffer for ShortNameU */
 359     WCHAR ShortNameBuffer[13];
 360
 361     /* */
 362     LONG RefCount;
 363
 364     /* List of FCB's for this volume */
 365     LIST_ENTRY FcbListEntry;
 366
 367     /* pointer to the parent fcb */
 368     struct _VFATFCB *parentFcb;
 369
 370     /* Flags for the fcb */
 371     ULONG Flags;
 372
 373     /* pointer to the file object which has initialized the fcb */
 374     PFILE_OBJECT FileObject;
 375
 376     /* Directory index for the short name entry */
 377     ULONG dirIndex;
 378
 379     /* Directory index where the long name starts */
 380     ULONG startIndex;
 381
 382     /* Share access for the file object */
 383     SHARE_ACCESS FCBShareAccess;
 384
 385     /* Incremented on IRP_MJ_CREATE, decremented on IRP_MJ_CLEANUP */
 386     ULONG OpenHandleCount;
 387
 388     /* Entry into the hash table for the path + long name */
 389     HASHENTRY Hash;
 390
 391     /* Entry into the hash table for the path + short name */
 392     HASHENTRY ShortHash;
 393
 394     /* List of byte-range locks for this file */
 395     FILE_LOCK FileLock;
 396
 397     /*
 398      * Optimalization: caching of last read/write cluster+offset pair. Can't
 399      * be in VFATCCB because it must be reset everytime the allocated clusters
 400      * change.
 401      */
 402     FAST_MUTEX LastMutex;
 403     ULONG LastCluster;
 404     ULONG LastOffset;
 405 } VFATFCB, *PVFATFCB;
 406
 407 typedef struct _VFATCCB
 408 {
 409     LARGE_INTEGER  CurrentByteOffset;
 410     /* for DirectoryControl */
 411     ULONG Entry;
 412     /* for DirectoryControl */
 413     UNICODE_STRING SearchPattern;
 414 } VFATCCB, *PVFATCCB;
 415
 416 #define TAG_CCB  'BCCV'
 417 #define TAG_FCB  'BCFV'
 418 #define TAG_IRP  'PRIV'
 419 #define TAG_VFAT 'TAFV'
 420
 421 #define ENTRIES_PER_SECTOR (BLOCKSIZE / sizeof(FATDirEntry))
 422
 423 typedef struct __DOSTIME
 424 {
 425     USHORT Second:5;
 426     USHORT Minute:6;
 427     USHORT Hour:5;
 428 }
 429 DOSTIME, *PDOSTIME;
 430
 431 typedef struct __DOSDATE
 432 {
 433     USHORT Day:5;
 434     USHORT Month:4;
 435     USHORT Year:7;
 436 }
 437 DOSDATE, *PDOSDATE;
 438
 439 #define IRPCONTEXT_CANWAIT          0x0001
 440 #define IRPCONTEXT_PENDINGRETURNED  0x0002
 441
 442 typedef struct
 443 {
 444     PIRP Irp;
 445     PDEVICE_OBJECT DeviceObject;
 446     PDEVICE_EXTENSION DeviceExt;
 447     ULONG Flags;
 448     WORK_QUEUE_ITEM WorkQueueItem;
 449     PIO_STACK_LOCATION Stack;
 450     UCHAR MajorFunction;
 451     UCHAR MinorFunction;
 452     PFILE_OBJECT FileObject;
 453     ULONG RefCount;
 454     KEVENT Event;
 455 } VFAT_IRP_CONTEXT, *PVFAT_IRP_CONTEXT;
 456
 457 typedef struct _VFAT_DIRENTRY_CONTEXT
 458 {
 459     ULONG StartIndex;
 460     ULONG DirIndex;
 461     DIR_ENTRY DirEntry;
 462     UNICODE_STRING LongNameU;
 463     UNICODE_STRING ShortNameU;
 464 } VFAT_DIRENTRY_CONTEXT, *PVFAT_DIRENTRY_CONTEXT;
 465
 466 typedef struct _VFAT_MOVE_CONTEXT
 467 {
 468     ULONG FirstCluster;
 469     ULONG FileSize;
 470     USHORT CreationDate;
 471     USHORT CreationTime;
 472 } VFAT_MOVE_CONTEXT, *PVFAT_MOVE_CONTEXT;
 473
 474 /* blockdev.c */
 475
 476 NTSTATUS
 477 VfatReadDisk(
 478     IN PDEVICE_OBJECT pDeviceObject,
 479     IN PLARGE_INTEGER ReadOffset,
 480     IN ULONG ReadLength,
 481     IN PUCHAR Buffer,
 482     IN BOOLEAN Override);
 483
 484 NTSTATUS
 485 VfatReadDiskPartial(
 486     IN PVFAT_IRP_CONTEXT IrpContext,
 487     IN PLARGE_INTEGER ReadOffset,
 488     IN ULONG ReadLength,
 489     IN ULONG BufferOffset,
 490     IN BOOLEAN Wait);
 491
 492 NTSTATUS
 493 VfatWriteDiskPartial(
 494     IN PVFAT_IRP_CONTEXT IrpContext,
 495     IN PLARGE_INTEGER WriteOffset,
 496     IN ULONG WriteLength,
 497     IN ULONG BufferOffset,
 498     IN BOOLEAN Wait);
 499
 500 NTSTATUS
 501 VfatBlockDeviceIoControl(
 502     IN PDEVICE_OBJECT DeviceObject,
 503     IN ULONG CtlCode,
 504     IN PVOID InputBuffer,
 505     IN ULONG InputBufferSize,
 506     IN OUT PVOID OutputBuffer,
 507     IN OUT PULONG pOutputBufferSize,
 508     IN BOOLEAN Override);
 509
 510 /* cleanup.c */
 511
 512 NTSTATUS
 513 VfatCleanup(
 514     PVFAT_IRP_CONTEXT IrpContext);
 515
 516 /* close.c */
 517
 518 NTSTATUS
 519 VfatClose(
 520     PVFAT_IRP_CONTEXT IrpContext);
 521
 522 NTSTATUS
 523 VfatCloseFile(
 524     PDEVICE_EXTENSION DeviceExt,
 525     PFILE_OBJECT FileObject);
 526
 527 /* create.c */
 528
 529 NTSTATUS
 530 VfatCreate(
 531     PVFAT_IRP_CONTEXT IrpContext);
 532
 533 NTSTATUS
 534 FindFile(
 535     PDEVICE_EXTENSION DeviceExt,
 536     PVFATFCB Parent,
 537     PUNICODE_STRING FileToFindU,
 538     PVFAT_DIRENTRY_CONTEXT DirContext,
 539     BOOLEAN First);
 540
 541 VOID
 542 vfat8Dot3ToString(
 543     PFAT_DIR_ENTRY pEntry,
 544     PUNICODE_STRING NameU);
 545
 546 NTSTATUS
 547 ReadVolumeLabel(
 548     PDEVICE_EXTENSION DeviceExt,
 549     PVPB Vpb);
 550
 551 /* dir.c */
 552
 553 NTSTATUS
 554 VfatDirectoryControl(
 555     PVFAT_IRP_CONTEXT IrpContext);
 556
 557 BOOLEAN
 558 FsdDosDateTimeToSystemTime(
 559     PDEVICE_EXTENSION DeviceExt,
 560     USHORT DosDate,
 561     USHORT DosTime,
 562     PLARGE_INTEGER SystemTime);
 563
 564 BOOLEAN
 565 FsdSystemTimeToDosDateTime(
 566     PDEVICE_EXTENSION DeviceExt,
 567     PLARGE_INTEGER SystemTime,
 568     USHORT *pDosDate,
 569     USHORT *pDosTime);
 570
 571 /* direntry.c */
 572
 573 ULONG
 574 vfatDirEntryGetFirstCluster(
 575     PDEVICE_EXTENSION pDeviceExt,
 576     PDIR_ENTRY pDirEntry);
 577
 578 BOOLEAN
 579 VfatIsDirectoryEmpty(
 580     PVFATFCB Fcb);
 581
 582 NTSTATUS
 583 FATGetNextDirEntry(
 584     PVOID *pContext,
 585     PVOID *pPage,
 586     IN PVFATFCB pDirFcb,
 587     IN PVFAT_DIRENTRY_CONTEXT DirContext,
 588     BOOLEAN First);
 589
 590 NTSTATUS
 591 FATXGetNextDirEntry(
 592     PVOID *pContext,
 593     PVOID *pPage,
 594     IN PVFATFCB pDirFcb,
 595     IN PVFAT_DIRENTRY_CONTEXT DirContext,
 596     BOOLEAN First);
 597
 598 /* dirwr.c */
 599
 600 NTSTATUS
 601 VfatAddEntry(
 602     PDEVICE_EXTENSION DeviceExt,
 603     PUNICODE_STRING PathNameU,
 604     PVFATFCB* Fcb,
 605     PVFATFCB ParentFcb,
 606     ULONG RequestedOptions,
 607     UCHAR ReqAttr,
 608     PVFAT_MOVE_CONTEXT MoveContext);
 609
 610 NTSTATUS
 611 VfatUpdateEntry(
 612     PVFATFCB pFcb);
 613
 614 NTSTATUS
 615 VfatDelEntry(
 616     PDEVICE_EXTENSION,
 617     PVFATFCB,
 618     PVFAT_MOVE_CONTEXT);
 619
 620 BOOLEAN
 621 vfatFindDirSpace(
 622     PDEVICE_EXTENSION DeviceExt,
 623     PVFATFCB pDirFcb,
 624     ULONG nbSlots,
 625     PULONG start);
 626
 627 NTSTATUS
 628 vfatRenameEntry(
 629     IN PDEVICE_EXTENSION DeviceExt,
 630     IN PVFATFCB pFcb,
 631     IN PUNICODE_STRING FileName,
 632     IN BOOLEAN CaseChangeOnly);
 633
 634 NTSTATUS
 635 VfatMoveEntry(
 636     IN PDEVICE_EXTENSION DeviceExt,
 637     IN PVFATFCB pFcb,
 638     IN PUNICODE_STRING FileName,
 639     IN PVFATFCB ParentFcb);
 640
 641 /* ea.h */
 642
 643 NTSTATUS
 644 VfatSetExtendedAttributes(
 645     PFILE_OBJECT FileObject,
 646     PVOID Ea,
 647     ULONG EaLength);
 648
 649 /* fastio.c */
 650
 651 VOID
 652 VfatInitFastIoRoutines(
 653     PFAST_IO_DISPATCH FastIoDispatch);
 654
 655 BOOLEAN
 656 NTAPI
 657 VfatAcquireForLazyWrite(
 658     IN PVOID Context,
 659     IN BOOLEAN Wait);
 660
 661 VOID
 662 NTAPI
 663 VfatReleaseFromLazyWrite(
 664     IN PVOID Context);
 665
 666 BOOLEAN
 667 NTAPI
 668 VfatAcquireForReadAhead(
 669     IN PVOID Context,
 670     IN BOOLEAN Wait);
 671
 672 VOID
 673 NTAPI
 674 VfatReleaseFromReadAhead(
 675     IN PVOID Context);
 676
 677 /* fat.c */
 678
 679 NTSTATUS
 680 FAT12GetNextCluster(
 681     PDEVICE_EXTENSION DeviceExt,
 682     ULONG CurrentCluster,
 683     PULONG NextCluster);
 684
 685 NTSTATUS
 686 FAT12FindAndMarkAvailableCluster(
 687     PDEVICE_EXTENSION DeviceExt,
 688     PULONG Cluster);
 689
 690 NTSTATUS
 691 FAT12WriteCluster(
 692     PDEVICE_EXTENSION DeviceExt,
 693     ULONG ClusterToWrite,
 694     ULONG NewValue,
 695     PULONG OldValue);
 696
 697 NTSTATUS
 698 FAT16GetNextCluster(
 699     PDEVICE_EXTENSION DeviceExt,
 700     ULONG CurrentCluster,
 701     PULONG NextCluster);
 702
 703 NTSTATUS
 704 FAT16FindAndMarkAvailableCluster(
 705     PDEVICE_EXTENSION DeviceExt,
 706     PULONG Cluster);
 707
 708 NTSTATUS
 709 FAT16WriteCluster(
 710     PDEVICE_EXTENSION DeviceExt,
 711     ULONG ClusterToWrite,
 712     ULONG NewValue,
 713     PULONG OldValue);
 714
 715 NTSTATUS
 716 FAT32GetNextCluster(
 717     PDEVICE_EXTENSION DeviceExt,
 718     ULONG CurrentCluster,
 719     PULONG NextCluster);
 720
 721 NTSTATUS
 722 FAT32FindAndMarkAvailableCluster(
 723     PDEVICE_EXTENSION DeviceExt,
 724     PULONG Cluster);
 725
 726 NTSTATUS
 727 FAT32WriteCluster(
 728     PDEVICE_EXTENSION DeviceExt,
 729     ULONG ClusterToWrite,
 730     ULONG NewValue,
 731     PULONG OldValue);
 732
 733 NTSTATUS
 734 OffsetToCluster(
 735     PDEVICE_EXTENSION DeviceExt,
 736     ULONG FirstCluster,
 737     ULONG FileOffset,
 738     PULONG Cluster,
 739     BOOLEAN Extend);
 740
 741 ULONGLONG
 742 ClusterToSector(
 743     PDEVICE_EXTENSION DeviceExt,
 744     ULONG Cluster);
 745
 746 NTSTATUS
 747 GetNextCluster(
 748     PDEVICE_EXTENSION DeviceExt,
 749     ULONG CurrentCluster,
 750     PULONG NextCluster);
 751
 752 NTSTATUS
 753 GetNextClusterExtend(
 754     PDEVICE_EXTENSION DeviceExt,
 755     ULONG CurrentCluster,
 756     PULONG NextCluster);
 757
 758 NTSTATUS
 759 CountAvailableClusters(
 760     PDEVICE_EXTENSION DeviceExt,
 761     PLARGE_INTEGER Clusters);
 762
 763 NTSTATUS
 764 WriteCluster(
 765     PDEVICE_EXTENSION DeviceExt,
 766     ULONG ClusterToWrite,
 767     ULONG NewValue);
 768
 769 /* fcb.c */
 770
 771 PVFATFCB
 772 vfatNewFCB(
 773     PDEVICE_EXTENSION pVCB,
 774     PUNICODE_STRING pFileNameU);
 775
 776 NTSTATUS
 777 vfatUpdateFCB(
 778     PDEVICE_EXTENSION pVCB,
 779     PVFATFCB Fcb,
 780     PUNICODE_STRING LongName,
 781     PUNICODE_STRING ShortName,
 782     PVFATFCB ParentFcb);
 783
 784 VOID
 785 vfatDestroyFCB(
 786     PVFATFCB pFCB);
 787
 788 VOID
 789 vfatDestroyCCB(
 790     PVFATCCB pCcb);
 791
 792 VOID
 793 vfatGrabFCB(
 794     PDEVICE_EXTENSION pVCB,
 795     PVFATFCB pFCB);
 796
 797 VOID
 798 vfatReleaseFCB(
 799     PDEVICE_EXTENSION pVCB,
 800     PVFATFCB pFCB);
 801
 802 PVFATFCB
 803 vfatGrabFCBFromTable(
 804     PDEVICE_EXTENSION pDeviceExt,
 805     PUNICODE_STRING pFileNameU);
 806
 807 PVFATFCB
 808 vfatMakeRootFCB(
 809     PDEVICE_EXTENSION pVCB);
 810
 811 PVFATFCB
 812 vfatOpenRootFCB(
 813     PDEVICE_EXTENSION pVCB);
 814
 815 BOOLEAN
 816 vfatFCBIsDirectory(
 817     PVFATFCB FCB);
 818
 819 BOOLEAN
 820 vfatFCBIsRoot(
 821     PVFATFCB FCB);
 822
 823 NTSTATUS
 824 vfatAttachFCBToFileObject(
 825     PDEVICE_EXTENSION vcb,
 826     PVFATFCB fcb,
 827     PFILE_OBJECT fileObject);
 828
 829 NTSTATUS
 830 vfatDirFindFile(
 831     PDEVICE_EXTENSION pVCB,
 832     PVFATFCB parentFCB,
 833     PUNICODE_STRING FileToFindU,
 834     PVFATFCB *fileFCB);
 835
 836 NTSTATUS
 837 vfatGetFCBForFile(
 838     PDEVICE_EXTENSION pVCB,
 839     PVFATFCB *pParentFCB,
 840     PVFATFCB *pFCB,
 841     PUNICODE_STRING pFileNameU);
 842
 843 NTSTATUS
 844 vfatMakeFCBFromDirEntry(
 845     PVCB vcb,
 846     PVFATFCB directoryFCB,
 847     PVFAT_DIRENTRY_CONTEXT DirContext,
 848     PVFATFCB *fileFCB);
 849
 850 /* finfo.c */
 851
 852 NTSTATUS
 853 VfatQueryInformation(
 854     PVFAT_IRP_CONTEXT IrpContext);
 855
 856 NTSTATUS
 857 VfatSetInformation(
 858     PVFAT_IRP_CONTEXT IrpContext);
 859
 860 NTSTATUS
 861 VfatSetAllocationSizeInformation(
 862     PFILE_OBJECT FileObject,
 863     PVFATFCB Fcb,
 864     PDEVICE_EXTENSION DeviceExt,
 865     PLARGE_INTEGER AllocationSize);
 866
 867 /* flush.c */
 868
 869 NTSTATUS
 870 VfatFlush(
 871     PVFAT_IRP_CONTEXT IrpContext);
 872
 873 NTSTATUS
 874 VfatFlushVolume(
 875     PDEVICE_EXTENSION DeviceExt,
 876     PVFATFCB VolumeFcb);
 877
 878 /* fsctl.c */
 879
 880 NTSTATUS
 881 VfatFileSystemControl(
 882     PVFAT_IRP_CONTEXT IrpContext);
 883
 884 /* iface.c */
 885
 886 NTSTATUS
 887 NTAPI
 888 DriverEntry(
 889     PDRIVER_OBJECT DriverObject,
 890     PUNICODE_STRING RegistryPath);
 891
 892
 893 /* misc.c */
 894
 895 NTSTATUS
 896 VfatQueueRequest(
 897     PVFAT_IRP_CONTEXT IrpContext);
 898
 899 PVFAT_IRP_CONTEXT
 900 VfatAllocateIrpContext(
 901     PDEVICE_OBJECT DeviceObject,
 902     PIRP Irp);
 903
 904 VOID
 905 VfatFreeIrpContext(
 906     PVFAT_IRP_CONTEXT IrpContext);
 907
 908 DRIVER_DISPATCH
 909 VfatBuildRequest;
 910
 911 NTSTATUS
 912 NTAPI
 913 VfatBuildRequest(
 914     PDEVICE_OBJECT DeviceObject,
 915     PIRP Irp);
 916
 917 PVOID
 918 VfatGetUserBuffer(
 919     IN PIRP);
 920
 921 NTSTATUS
 922 VfatLockUserBuffer(
 923     IN PIRP,
 924     IN ULONG,
 925     IN LOCK_OPERATION);
 926
 927 /* pnp.c */
 928
 929 NTSTATUS
 930 VfatPnp(
 931     PVFAT_IRP_CONTEXT IrpContext);
 932
 933 /* rw.c */
 934
 935 NTSTATUS
 936 VfatRead(
 937     PVFAT_IRP_CONTEXT IrpContext);
 938
 939 NTSTATUS
 940 VfatWrite(
 941     PVFAT_IRP_CONTEXT IrpContext);
 942
 943 NTSTATUS
 944 NextCluster(
 945     PDEVICE_EXTENSION DeviceExt,
 946     ULONG FirstCluster,
 947     PULONG CurrentCluster,
 948     BOOLEAN Extend);
 949
 950 /* shutdown.c */
 951
 952 DRIVER_DISPATCH
 953 VfatShutdown;
 954
 955 NTSTATUS
 956 NTAPI
 957 VfatShutdown(
 958     PDEVICE_OBJECT DeviceObject,
 959     PIRP Irp);
 960
 961 /* string.c */
 962
 963 VOID
 964 vfatSplitPathName(
 965     PUNICODE_STRING PathNameU,
 966     PUNICODE_STRING DirNameU,
 967     PUNICODE_STRING FileNameU);
 968
 969 BOOLEAN
 970 vfatIsLongIllegal(
 971     WCHAR c);
 972
 973 BOOLEAN
 974 wstrcmpjoki(
 975     PWSTR s1,
 976     PWSTR s2);
 977
 978 /* volume.c */
 979
 980 NTSTATUS
 981 VfatQueryVolumeInformation(
 982     PVFAT_IRP_CONTEXT IrpContext);
 983
 984 NTSTATUS
 985 VfatSetVolumeInformation(
 986     PVFAT_IRP_CONTEXT IrpContext);
 987
 988 #endif /* _FASTFAT_PCH_ */