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 #if 0
  11 #ifndef _MSC_VER
  12 #define ENABLE_SWAPOUT
  13 #endif
  14 #endif
  15
  16 #define ROUND_DOWN(n, align) \
  17     (((ULONG)n) & ~((align) - 1l))
  18
  19 #define ROUND_UP(n, align) \
  20     ROUND_DOWN(((ULONG)n) + (align) - 1, (align))
  21
  22 #include <pshpack1.h>
  23 struct _BootSector
  24 {
  25     unsigned char  magic0, res0, magic1;
  26     unsigned char  OEMName[8];
  27     unsigned short BytesPerSector;
  28     unsigned char  SectorsPerCluster;
  29     unsigned short ReservedSectors;
  30     unsigned char  FATCount;
  31     unsigned short RootEntries, Sectors;
  32     unsigned char  Media;
  33     unsigned short FATSectors, SectorsPerTrack, Heads;
  34     unsigned long  HiddenSectors, SectorsHuge;
  35     unsigned char  Drive, Res1, Sig;
  36     unsigned long  VolumeID;
  37     unsigned char  VolumeLabel[11], SysType[8];
  38     unsigned char  Res2[448];
  39     unsigned short Signatur1;
  40 };
  41
  42 struct _BootSector32
  43 {
  44     unsigned char  magic0, res0, magic1;                        // 0
  45     unsigned char  OEMName[8];                          // 3
  46     unsigned short BytesPerSector;                      // 11
  47     unsigned char  SectorsPerCluster;                   // 13
  48     unsigned short ReservedSectors;                     // 14
  49     unsigned char  FATCount;                            // 16
  50     unsigned short RootEntries, Sectors;                        // 17
  51     unsigned char  Media;                                       // 21
  52     unsigned short FATSectors, SectorsPerTrack, Heads;  // 22
  53     unsigned long  HiddenSectors, SectorsHuge;          // 28
  54     unsigned long  FATSectors32;                                // 36
  55     unsigned short ExtFlag;                             // 40
  56     unsigned short FSVersion;                           // 42
  57     unsigned long  RootCluster;                         // 44
  58     unsigned short FSInfoSector;                                // 48
  59     unsigned short BootBackup;                          // 50
  60     unsigned char  Res3[12];                            // 52
  61     unsigned char  Drive;                                       // 64
  62     unsigned char  Res4;                                        // 65
  63     unsigned char  ExtBootSignature;                    // 66
  64     unsigned long  VolumeID;                            // 67
  65     unsigned char  VolumeLabel[11], SysType[8];         // 71
  66     unsigned char  Res2[420];                           // 90
  67     unsigned short Signature1;                          // 510
  68 };
  69
  70 struct _BootSectorFatX
  71 {
  72     unsigned char SysType[4];        // 0
  73     unsigned long VolumeID;          // 4
  74     unsigned long SectorsPerCluster; // 8
  75     unsigned short FATCount;         // 12
  76     unsigned long Unknown;           // 14
  77     unsigned char Unused[4078];      // 18
  78 };
  79
  80 struct _FsInfoSector
  81 {
  82     unsigned long  ExtBootSignature2;                   // 0
  83     unsigned char  Res6[480];                           // 4
  84     unsigned long  FSINFOSignature;                     // 484
  85     unsigned long  FreeCluster;                         // 488
  86     unsigned long  NextCluster;                         // 492
  87     unsigned char  Res7[12];                            // 496
  88     unsigned long  Signatur2;                           // 508
  89 };
  90
  91 typedef struct _BootSector BootSector;
  92
  93 struct _FATDirEntry
  94 {
  95     union
  96     {
  97         struct { unsigned char Filename[8], Ext[3]; };
  98         unsigned char ShortName[11];
  99     };
 100     unsigned char  Attrib;
 101     unsigned char  lCase;
 102     unsigned char  CreationTimeMs;
 103     unsigned short CreationTime,CreationDate,AccessDate;
 104     union
 105     {
 106         unsigned short FirstClusterHigh; // FAT32
 107         unsigned short ExtendedAttributes; // FAT12/FAT16
 108     };
 109     unsigned short UpdateTime;                            //time create/update
 110     unsigned short UpdateDate;                            //date create/update
 111     unsigned short FirstCluster;
 112     unsigned long  FileSize;
 113 };
 114
 115 #define FAT_EAFILE  "EA DATA. SF"
 116
 117 typedef struct _EAFileHeader FAT_EA_FILE_HEADER, *PFAT_EA_FILE_HEADER;
 118
 119 struct _EAFileHeader
 120 {
 121     unsigned short Signature; // ED
 122     unsigned short Unknown[15];
 123     unsigned short EASetTable[240];
 124 };
 125
 126 typedef struct _EASetHeader FAT_EA_SET_HEADER, *PFAT_EA_SET_HEADER;
 127
 128 struct _EASetHeader
 129 {
 130     unsigned short Signature; // EA
 131     unsigned short Offset; // relative offset, same value as in the EASetTable
 132     unsigned short Unknown1[2];
 133     char TargetFileName[12];
 134     unsigned short Unknown2[3];
 135     unsigned int EALength;
 136     // EA Header
 137 };
 138
 139 typedef struct _EAHeader FAT_EA_HEADER, *PFAT_EA_HEADER;
 140
 141 struct _EAHeader
 142 {
 143     unsigned char Unknown;
 144     unsigned char EANameLength;
 145     unsigned short EAValueLength;
 146     // Name Data
 147     // Value Data
 148 };
 149
 150 typedef struct _FATDirEntry FAT_DIR_ENTRY, *PFAT_DIR_ENTRY;
 151
 152 struct _FATXDirEntry
 153 {
 154     unsigned char FilenameLength; // 0
 155     unsigned char Attrib;         // 1
 156     unsigned char Filename[42];   // 2
 157     unsigned long FirstCluster;   // 44
 158     unsigned long FileSize;       // 48
 159     unsigned short UpdateTime;    // 52
 160     unsigned short UpdateDate;    // 54
 161     unsigned short CreationTime;  // 56
 162     unsigned short CreationDate;  // 58
 163     unsigned short AccessTime;    // 60
 164     unsigned short AccessDate;    // 62
 165 };
 166
 167 struct _slot
 168 {
 169     unsigned char id;               // sequence number for slot
 170     WCHAR  name0_4[5];              // first 5 characters in name
 171     unsigned char attr;             // attribute byte
 172     unsigned char reserved;         // always 0
 173     unsigned char alias_checksum;   // checksum for 8.3 alias
 174     WCHAR  name5_10[6];             // 6 more characters in name
 175     unsigned char start[2];         // starting cluster number
 176     WCHAR  name11_12[2];            // last 2 characters in name
 177 };
 178
 179 typedef struct _slot slot;
 180
 181 #include <poppack.h>
 182
 183 #define VFAT_CASE_LOWER_BASE    8               // base is lower case
 184 #define VFAT_CASE_LOWER_EXT     16              // extension is lower case
 185
 186 #define LONGNAME_MAX_LENGTH     256             // max length for a long filename
 187
 188 #define ENTRY_DELETED(DeviceExt, DirEntry) ((DeviceExt)->Flags & VCB_IS_FATX ? FATX_ENTRY_DELETED(&((DirEntry)->FatX)) : FAT_ENTRY_DELETED(&((DirEntry)->Fat)))
 189 #define ENTRY_VOLUME(DeviceExt, DirEntry)  ((DeviceExt)->Flags & VCB_IS_FATX ? FATX_ENTRY_VOLUME(&((DirEntry)->FatX)) : FAT_ENTRY_VOLUME(&((DirEntry)->Fat)))
 190 #define ENTRY_END(DeviceExt, DirEntry)     ((DeviceExt)->Flags & VCB_IS_FATX ? FATX_ENTRY_END(&((DirEntry)->FatX)) : FAT_ENTRY_END(&((DirEntry)->Fat)))
 191
 192 #define FAT_ENTRY_DELETED(DirEntry)  ((DirEntry)->Filename[0] == 0xe5)
 193 #define FAT_ENTRY_END(DirEntry)      ((DirEntry)->Filename[0] == 0)
 194 #define FAT_ENTRY_LONG(DirEntry)     (((DirEntry)->Attrib & 0x3f) == 0x0f)
 195 #define FAT_ENTRY_VOLUME(DirEntry)   (((DirEntry)->Attrib & 0x1f) == 0x08)
 196
 197 #define FATX_ENTRY_DELETED(DirEntry) ((DirEntry)->FilenameLength == 0xe5)
 198 #define FATX_ENTRY_END(DirEntry)     ((DirEntry)->FilenameLength == 0xff)
 199 #define FATX_ENTRY_LONG(DirEntry)    (FALSE)
 200 #define FATX_ENTRY_VOLUME(DirEntry)  (((DirEntry)->Attrib & 0x1f) == 0x08)
 201
 202 #define FAT_ENTRIES_PER_PAGE   (PAGE_SIZE / sizeof (FAT_DIR_ENTRY))
 203 #define FATX_ENTRIES_PER_PAGE  (PAGE_SIZE / sizeof (FATX_DIR_ENTRY))
 204
 205 typedef struct _FATXDirEntry FATX_DIR_ENTRY, *PFATX_DIR_ENTRY;
 206
 207 union _DIR_ENTRY
 208 {
 209     FAT_DIR_ENTRY Fat;
 210     FATX_DIR_ENTRY FatX;
 211 };
 212
 213 typedef union _DIR_ENTRY DIR_ENTRY, *PDIR_ENTRY;
 214
 215 #define BLOCKSIZE 512
 216
 217 #define FAT16  (1)
 218 #define FAT12  (2)
 219 #define FAT32  (3)
 220 #define FATX16 (4)
 221 #define FATX32 (5)
 222
 223 #define VCB_VOLUME_LOCKED       0x0001
 224 #define VCB_DISMOUNT_PENDING    0x0002
 225 #define VCB_IS_FATX             0x0004
 226 #define VCB_IS_DIRTY            0x4000 /* Volume is dirty */
 227 #define VCB_CLEAR_DIRTY         0x8000 /* Clean dirty flag at shutdown */
 228
 229 typedef struct
 230 {
 231     ULONG VolumeID;
 232     ULONG FATStart;
 233     ULONG FATCount;
 234     ULONG FATSectors;
 235     ULONG rootDirectorySectors;
 236     ULONG rootStart;
 237     ULONG dataStart;
 238     ULONG RootCluster;
 239     ULONG SectorsPerCluster;
 240     ULONG BytesPerSector;
 241     ULONG BytesPerCluster;
 242     ULONG NumberOfClusters;
 243     ULONG FatType;
 244     ULONG Sectors;
 245     BOOLEAN FixedMedia;
 246 } FATINFO, *PFATINFO;
 247
 248 struct _VFATFCB;
 249 struct _VFAT_DIRENTRY_CONTEXT;
 250
 251 typedef struct _HASHENTRY
 252 {
 253     ULONG Hash;
 254     struct _VFATFCB* self;
 255     struct _HASHENTRY* next;
 256 }
 257 HASHENTRY;
 258
 259 #define FCB_HASH_TABLE_SIZE 65536
 260
 261 typedef struct DEVICE_EXTENSION *PDEVICE_EXTENSION;
 262
 263 typedef NTSTATUS (*PGET_NEXT_CLUSTER)(PDEVICE_EXTENSION,ULONG,PULONG);
 264 typedef NTSTATUS (*PFIND_AND_MARK_AVAILABLE_CLUSTER)(PDEVICE_EXTENSION,PULONG);
 265 typedef NTSTATUS (*PWRITE_CLUSTER)(PDEVICE_EXTENSION,ULONG,ULONG,PULONG);
 266
 267 typedef NTSTATUS (*PGET_NEXT_DIR_ENTRY)(PVOID*,PVOID*,struct _VFATFCB*,struct _VFAT_DIRENTRY_CONTEXT*,BOOLEAN);
 268
 269 typedef struct DEVICE_EXTENSION
 270 {
 271     ERESOURCE DirResource;
 272     ERESOURCE FatResource;
 273
 274     KSPIN_LOCK FcbListLock;
 275     LIST_ENTRY FcbListHead;
 276     ULONG HashTableSize;
 277     struct _HASHENTRY **FcbHashTable;
 278
 279     PDEVICE_OBJECT VolumeDevice;
 280     PDEVICE_OBJECT StorageDevice;
 281     PFILE_OBJECT FATFileObject;
 282     FATINFO FatInfo;
 283     ULONG LastAvailableCluster;
 284     ULONG AvailableClusters;
 285     BOOLEAN AvailableClustersValid;
 286     ULONG Flags;
 287     struct _VFATFCB *VolumeFcb;
 288
 289     /* Pointers to functions for manipulating FAT. */
 290     PGET_NEXT_CLUSTER GetNextCluster;
 291     PFIND_AND_MARK_AVAILABLE_CLUSTER FindAndMarkAvailableCluster;
 292     PWRITE_CLUSTER WriteCluster;
 293     ULONG CleanShutBitMask;
 294
 295     /* Pointers to functions for manipulating directory entries. */
 296     PGET_NEXT_DIR_ENTRY GetNextDirEntry;
 297
 298     ULONG BaseDateYear;
 299
 300     LIST_ENTRY VolumeListEntry;
 301
 302     /* Notifications */
 303     LIST_ENTRY NotifyList;
 304     PNOTIFY_SYNC NotifySync;
 305
 306     /* Incremented on IRP_MJ_CREATE, decremented on IRP_MJ_CLOSE */
 307     ULONG OpenHandleCount;
 308
 309     /* VPBs for dismount */
 310     PVPB IoVPB;
 311     PVPB SpareVPB;
 312 } DEVICE_EXTENSION, VCB, *PVCB;
 313
 314 typedef struct
 315 {
 316     PDRIVER_OBJECT DriverObject;
 317     PDEVICE_OBJECT DeviceObject;
 318     ULONG Flags;
 319     ERESOURCE VolumeListLock;
 320     LIST_ENTRY VolumeListHead;
 321     NPAGED_LOOKASIDE_LIST FcbLookasideList;
 322     NPAGED_LOOKASIDE_LIST CcbLookasideList;
 323     NPAGED_LOOKASIDE_LIST IrpContextLookasideList;
 324     FAST_IO_DISPATCH FastIoDispatch;
 325     CACHE_MANAGER_CALLBACKS CacheMgrCallbacks;
 326 } VFAT_GLOBAL_DATA, *PVFAT_GLOBAL_DATA;
 327
 328 extern PVFAT_GLOBAL_DATA VfatGlobalData;
 329
 330 #define FCB_CACHE_INITIALIZED   0x0001
 331 #define FCB_DELETE_PENDING      0x0002
 332 #define FCB_IS_FAT              0x0004
 333 #define FCB_IS_PAGE_FILE        0x0008
 334 #define FCB_IS_VOLUME           0x0010
 335 #define FCB_IS_DIRTY            0x0020
 336 #define FCB_IS_FATX_ENTRY       0x0040
 337
 338 typedef struct _VFATFCB
 339 {
 340     /* FCB header required by ROS/NT */
 341     FSRTL_COMMON_FCB_HEADER RFCB;
 342     SECTION_OBJECT_POINTERS SectionObjectPointers;
 343     ERESOURCE MainResource;
 344     ERESOURCE PagingIoResource;
 345     /* end FCB header required by ROS/NT */
 346
 347     /* directory entry for this file or directory */
 348     DIR_ENTRY entry;
 349
 350     /* Pointer to attributes in entry */
 351     PUCHAR Attributes;
 352
 353     /* long file name, points into PathNameBuffer */
 354     UNICODE_STRING LongNameU;
 355
 356     /* short file name */
 357     UNICODE_STRING ShortNameU;
 358
 359     /* directory name, points into PathNameBuffer */
 360     UNICODE_STRING DirNameU;
 361
 362     /* path + long file name 260 max*/
 363     UNICODE_STRING PathNameU;
 364
 365     /* buffer for PathNameU */
 366     PWCHAR PathNameBuffer;
 367
 368     /* buffer for ShortNameU */
 369     WCHAR ShortNameBuffer[13];
 370
 371     /* */
 372     LONG RefCount;
 373
 374     /* List of FCB's for this volume */
 375     LIST_ENTRY FcbListEntry;
 376
 377     /* pointer to the parent fcb */
 378     struct _VFATFCB *parentFcb;
 379
 380     /* Flags for the fcb */
 381     ULONG Flags;
 382
 383     /* pointer to the file object which has initialized the fcb */
 384     PFILE_OBJECT FileObject;
 385
 386     /* Directory index for the short name entry */
 387     ULONG dirIndex;
 388
 389     /* Directory index where the long name starts */
 390     ULONG startIndex;
 391
 392     /* Share access for the file object */
 393     SHARE_ACCESS FCBShareAccess;
 394
 395     /* Incremented on IRP_MJ_CREATE, decremented on IRP_MJ_CLEANUP */
 396     ULONG OpenHandleCount;
 397
 398     /* Entry into the hash table for the path + long name */
 399     HASHENTRY Hash;
 400
 401     /* Entry into the hash table for the path + short name */
 402     HASHENTRY ShortHash;
 403
 404     /* List of byte-range locks for this file */
 405     FILE_LOCK FileLock;
 406
 407     /*
 408      * Optimalization: caching of last read/write cluster+offset pair. Can't
 409      * be in VFATCCB because it must be reset everytime the allocated clusters
 410      * change.
 411      */
 412     FAST_MUTEX LastMutex;
 413     ULONG LastCluster;
 414     ULONG LastOffset;
 415 } VFATFCB, *PVFATFCB;
 416
 417 typedef struct _VFATCCB
 418 {
 419     LARGE_INTEGER  CurrentByteOffset;
 420     /* for DirectoryControl */
 421     ULONG Entry;
 422     /* for DirectoryControl */
 423     UNICODE_STRING SearchPattern;
 424 } VFATCCB, *PVFATCCB;
 425
 426 #define TAG_CCB  'BCCV'
 427 #define TAG_FCB  'BCFV'
 428 #define TAG_IRP  'PRIV'
 429 #define TAG_VFAT 'TAFV'
 430
 431 #define ENTRIES_PER_SECTOR (BLOCKSIZE / sizeof(FATDirEntry))
 432
 433 typedef struct __DOSTIME
 434 {
 435     USHORT Second:5;
 436     USHORT Minute:6;
 437     USHORT Hour:5;
 438 }
 439 DOSTIME, *PDOSTIME;
 440
 441 typedef struct __DOSDATE
 442 {
 443     USHORT Day:5;
 444     USHORT Month:4;
 445     USHORT Year:7;
 446 }
 447 DOSDATE, *PDOSDATE;
 448
 449 #define IRPCONTEXT_CANWAIT          0x0001
 450 #define IRPCONTEXT_PENDINGRETURNED  0x0002
 451
 452 typedef struct
 453 {
 454     PIRP Irp;
 455     PDEVICE_OBJECT DeviceObject;
 456     PDEVICE_EXTENSION DeviceExt;
 457     ULONG Flags;
 458     WORK_QUEUE_ITEM WorkQueueItem;
 459     PIO_STACK_LOCATION Stack;
 460     UCHAR MajorFunction;
 461     UCHAR MinorFunction;
 462     PFILE_OBJECT FileObject;
 463     ULONG RefCount;
 464     KEVENT Event;
 465 } VFAT_IRP_CONTEXT, *PVFAT_IRP_CONTEXT;
 466
 467 typedef struct _VFAT_DIRENTRY_CONTEXT
 468 {
 469     ULONG StartIndex;
 470     ULONG DirIndex;
 471     DIR_ENTRY DirEntry;
 472     UNICODE_STRING LongNameU;
 473     UNICODE_STRING ShortNameU;
 474 } VFAT_DIRENTRY_CONTEXT, *PVFAT_DIRENTRY_CONTEXT;
 475
 476 typedef struct _VFAT_MOVE_CONTEXT
 477 {
 478     ULONG FirstCluster;
 479     ULONG FileSize;
 480     USHORT CreationDate;
 481     USHORT CreationTime;
 482 } VFAT_MOVE_CONTEXT, *PVFAT_MOVE_CONTEXT;
 483
 484 /* blockdev.c */
 485
 486 NTSTATUS
 487 VfatReadDisk(
 488     IN PDEVICE_OBJECT pDeviceObject,
 489     IN PLARGE_INTEGER ReadOffset,
 490     IN ULONG ReadLength,
 491     IN PUCHAR Buffer,
 492     IN BOOLEAN Override);
 493
 494 NTSTATUS
 495 VfatReadDiskPartial(
 496     IN PVFAT_IRP_CONTEXT IrpContext,
 497     IN PLARGE_INTEGER ReadOffset,
 498     IN ULONG ReadLength,
 499     IN ULONG BufferOffset,
 500     IN BOOLEAN Wait);
 501
 502 NTSTATUS
 503 VfatWriteDiskPartial(
 504     IN PVFAT_IRP_CONTEXT IrpContext,
 505     IN PLARGE_INTEGER WriteOffset,
 506     IN ULONG WriteLength,
 507     IN ULONG BufferOffset,
 508     IN BOOLEAN Wait);
 509
 510 NTSTATUS
 511 VfatBlockDeviceIoControl(
 512     IN PDEVICE_OBJECT DeviceObject,
 513     IN ULONG CtlCode,
 514     IN PVOID InputBuffer,
 515     IN ULONG InputBufferSize,
 516     IN OUT PVOID OutputBuffer,
 517     IN OUT PULONG pOutputBufferSize,
 518     IN BOOLEAN Override);
 519
 520 /* cleanup.c */
 521
 522 NTSTATUS
 523 VfatCleanup(
 524     PVFAT_IRP_CONTEXT IrpContext);
 525
 526 /* close.c */
 527
 528 NTSTATUS
 529 VfatClose(
 530     PVFAT_IRP_CONTEXT IrpContext);
 531
 532 NTSTATUS
 533 VfatCloseFile(
 534     PDEVICE_EXTENSION DeviceExt,
 535     PFILE_OBJECT FileObject);
 536
 537 /* create.c */
 538
 539 NTSTATUS
 540 VfatCreate(
 541     PVFAT_IRP_CONTEXT IrpContext);
 542
 543 NTSTATUS
 544 FindFile(
 545     PDEVICE_EXTENSION DeviceExt,
 546     PVFATFCB Parent,
 547     PUNICODE_STRING FileToFindU,
 548     PVFAT_DIRENTRY_CONTEXT DirContext,
 549     BOOLEAN First);
 550
 551 VOID
 552 vfat8Dot3ToString(
 553     PFAT_DIR_ENTRY pEntry,
 554     PUNICODE_STRING NameU);
 555
 556 NTSTATUS
 557 ReadVolumeLabel(
 558     PDEVICE_EXTENSION DeviceExt,
 559     PVPB Vpb);
 560
 561 /* dir.c */
 562
 563 NTSTATUS
 564 VfatDirectoryControl(
 565     PVFAT_IRP_CONTEXT IrpContext);
 566
 567 BOOLEAN
 568 FsdDosDateTimeToSystemTime(
 569     PDEVICE_EXTENSION DeviceExt,
 570     USHORT DosDate,
 571     USHORT DosTime,
 572     PLARGE_INTEGER SystemTime);
 573
 574 BOOLEAN
 575 FsdSystemTimeToDosDateTime(
 576     PDEVICE_EXTENSION DeviceExt,
 577     PLARGE_INTEGER SystemTime,
 578     USHORT *pDosDate,
 579     USHORT *pDosTime);
 580
 581 /* direntry.c */
 582
 583 ULONG
 584 vfatDirEntryGetFirstCluster(
 585     PDEVICE_EXTENSION pDeviceExt,
 586     PDIR_ENTRY pDirEntry);
 587
 588 BOOLEAN
 589 VfatIsDirectoryEmpty(
 590     PVFATFCB Fcb);
 591
 592 NTSTATUS
 593 FATGetNextDirEntry(
 594     PVOID *pContext,
 595     PVOID *pPage,
 596     IN PVFATFCB pDirFcb,
 597     IN PVFAT_DIRENTRY_CONTEXT DirContext,
 598     BOOLEAN First);
 599
 600 NTSTATUS
 601 FATXGetNextDirEntry(
 602     PVOID *pContext,
 603     PVOID *pPage,
 604     IN PVFATFCB pDirFcb,
 605     IN PVFAT_DIRENTRY_CONTEXT DirContext,
 606     BOOLEAN First);
 607
 608 /* dirwr.c */
 609
 610 NTSTATUS
 611 VfatAddEntry(
 612     PDEVICE_EXTENSION DeviceExt,
 613     PUNICODE_STRING PathNameU,
 614     PVFATFCB* Fcb,
 615     PVFATFCB ParentFcb,
 616     ULONG RequestedOptions,
 617     UCHAR ReqAttr,
 618     PVFAT_MOVE_CONTEXT MoveContext);
 619
 620 NTSTATUS
 621 VfatUpdateEntry(
 622     PVFATFCB pFcb);
 623
 624 NTSTATUS
 625 VfatDelEntry(
 626     PDEVICE_EXTENSION,
 627     PVFATFCB,
 628     PVFAT_MOVE_CONTEXT);
 629
 630 BOOLEAN
 631 vfatFindDirSpace(
 632     PDEVICE_EXTENSION DeviceExt,
 633     PVFATFCB pDirFcb,
 634     ULONG nbSlots,
 635     PULONG start);
 636
 637 NTSTATUS
 638 vfatRenameEntry(
 639     IN PDEVICE_EXTENSION DeviceExt,
 640     IN PVFATFCB pFcb,
 641     IN PUNICODE_STRING FileName,
 642     IN BOOLEAN CaseChangeOnly);
 643
 644 NTSTATUS
 645 VfatMoveEntry(
 646     IN PDEVICE_EXTENSION DeviceExt,
 647     IN PVFATFCB pFcb,
 648     IN PUNICODE_STRING FileName,
 649     IN PVFATFCB ParentFcb);
 650
 651 /* ea.h */
 652
 653 NTSTATUS
 654 VfatSetExtendedAttributes(
 655     PFILE_OBJECT FileObject,
 656     PVOID Ea,
 657     ULONG EaLength);
 658
 659 /* fastio.c */
 660
 661 VOID
 662 VfatInitFastIoRoutines(
 663     PFAST_IO_DISPATCH FastIoDispatch);
 664
 665 BOOLEAN
 666 NTAPI
 667 VfatAcquireForLazyWrite(
 668     IN PVOID Context,
 669     IN BOOLEAN Wait);
 670
 671 VOID
 672 NTAPI
 673 VfatReleaseFromLazyWrite(
 674     IN PVOID Context);
 675
 676 BOOLEAN
 677 NTAPI
 678 VfatAcquireForReadAhead(
 679     IN PVOID Context,
 680     IN BOOLEAN Wait);
 681
 682 VOID
 683 NTAPI
 684 VfatReleaseFromReadAhead(
 685     IN PVOID Context);
 686
 687 /* fat.c */
 688
 689 NTSTATUS
 690 FAT12GetNextCluster(
 691     PDEVICE_EXTENSION DeviceExt,
 692     ULONG CurrentCluster,
 693     PULONG NextCluster);
 694
 695 NTSTATUS
 696 FAT12FindAndMarkAvailableCluster(
 697     PDEVICE_EXTENSION DeviceExt,
 698     PULONG Cluster);
 699
 700 NTSTATUS
 701 FAT12WriteCluster(
 702     PDEVICE_EXTENSION DeviceExt,
 703     ULONG ClusterToWrite,
 704     ULONG NewValue,
 705     PULONG OldValue);
 706
 707 NTSTATUS
 708 FAT16GetNextCluster(
 709     PDEVICE_EXTENSION DeviceExt,
 710     ULONG CurrentCluster,
 711     PULONG NextCluster);
 712
 713 NTSTATUS
 714 FAT16FindAndMarkAvailableCluster(
 715     PDEVICE_EXTENSION DeviceExt,
 716     PULONG Cluster);
 717
 718 NTSTATUS
 719 FAT16WriteCluster(
 720     PDEVICE_EXTENSION DeviceExt,
 721     ULONG ClusterToWrite,
 722     ULONG NewValue,
 723     PULONG OldValue);
 724
 725 NTSTATUS
 726 FAT32GetNextCluster(
 727     PDEVICE_EXTENSION DeviceExt,
 728     ULONG CurrentCluster,
 729     PULONG NextCluster);
 730
 731 NTSTATUS
 732 FAT32FindAndMarkAvailableCluster(
 733     PDEVICE_EXTENSION DeviceExt,
 734     PULONG Cluster);
 735
 736 NTSTATUS
 737 FAT32WriteCluster(
 738     PDEVICE_EXTENSION DeviceExt,
 739     ULONG ClusterToWrite,
 740     ULONG NewValue,
 741     PULONG OldValue);
 742
 743 NTSTATUS
 744 OffsetToCluster(
 745     PDEVICE_EXTENSION DeviceExt,
 746     ULONG FirstCluster,
 747     ULONG FileOffset,
 748     PULONG Cluster,
 749     BOOLEAN Extend);
 750
 751 ULONGLONG
 752 ClusterToSector(
 753     PDEVICE_EXTENSION DeviceExt,
 754     ULONG Cluster);
 755
 756 NTSTATUS
 757 GetNextCluster(
 758     PDEVICE_EXTENSION DeviceExt,
 759     ULONG CurrentCluster,
 760     PULONG NextCluster);
 761
 762 NTSTATUS
 763 GetNextClusterExtend(
 764     PDEVICE_EXTENSION DeviceExt,
 765     ULONG CurrentCluster,
 766     PULONG NextCluster);
 767
 768 NTSTATUS
 769 CountAvailableClusters(
 770     PDEVICE_EXTENSION DeviceExt,
 771     PLARGE_INTEGER Clusters);
 772
 773 NTSTATUS
 774 WriteCluster(
 775     PDEVICE_EXTENSION DeviceExt,
 776     ULONG ClusterToWrite,
 777     ULONG NewValue);
 778
 779 /* fcb.c */
 780
 781 PVFATFCB
 782 vfatNewFCB(
 783     PDEVICE_EXTENSION pVCB,
 784     PUNICODE_STRING pFileNameU);
 785
 786 NTSTATUS
 787 vfatUpdateFCB(
 788     PDEVICE_EXTENSION pVCB,
 789     PVFATFCB Fcb,
 790     PUNICODE_STRING LongName,
 791     PUNICODE_STRING ShortName,
 792     PVFATFCB ParentFcb);
 793
 794 VOID
 795 vfatDestroyFCB(
 796     PVFATFCB pFCB);
 797
 798 VOID
 799 vfatDestroyCCB(
 800     PVFATCCB pCcb);
 801
 802 VOID
 803 vfatGrabFCB(
 804     PDEVICE_EXTENSION pVCB,
 805     PVFATFCB pFCB);
 806
 807 VOID
 808 vfatReleaseFCB(
 809     PDEVICE_EXTENSION pVCB,
 810     PVFATFCB pFCB);
 811
 812 PVFATFCB
 813 vfatGrabFCBFromTable(
 814     PDEVICE_EXTENSION pDeviceExt,
 815     PUNICODE_STRING pFileNameU);
 816
 817 PVFATFCB
 818 vfatMakeRootFCB(
 819     PDEVICE_EXTENSION pVCB);
 820
 821 PVFATFCB
 822 vfatOpenRootFCB(
 823     PDEVICE_EXTENSION pVCB);
 824
 825 BOOLEAN
 826 vfatFCBIsDirectory(
 827     PVFATFCB FCB);
 828
 829 BOOLEAN
 830 vfatFCBIsRoot(
 831     PVFATFCB FCB);
 832
 833 NTSTATUS
 834 vfatAttachFCBToFileObject(
 835     PDEVICE_EXTENSION vcb,
 836     PVFATFCB fcb,
 837     PFILE_OBJECT fileObject);
 838
 839 NTSTATUS
 840 vfatDirFindFile(
 841     PDEVICE_EXTENSION pVCB,
 842     PVFATFCB parentFCB,
 843     PUNICODE_STRING FileToFindU,
 844     PVFATFCB *fileFCB);
 845
 846 NTSTATUS
 847 vfatGetFCBForFile(
 848     PDEVICE_EXTENSION pVCB,
 849     PVFATFCB *pParentFCB,
 850     PVFATFCB *pFCB,
 851     PUNICODE_STRING pFileNameU);
 852
 853 NTSTATUS
 854 vfatMakeFCBFromDirEntry(
 855     PVCB vcb,
 856     PVFATFCB directoryFCB,
 857     PVFAT_DIRENTRY_CONTEXT DirContext,
 858     PVFATFCB *fileFCB);
 859
 860 /* finfo.c */
 861
 862 NTSTATUS
 863 VfatQueryInformation(
 864     PVFAT_IRP_CONTEXT IrpContext);
 865
 866 NTSTATUS
 867 VfatSetInformation(
 868     PVFAT_IRP_CONTEXT IrpContext);
 869
 870 NTSTATUS
 871 VfatSetAllocationSizeInformation(
 872     PFILE_OBJECT FileObject,
 873     PVFATFCB Fcb,
 874     PDEVICE_EXTENSION DeviceExt,
 875     PLARGE_INTEGER AllocationSize);
 876
 877 /* flush.c */
 878
 879 NTSTATUS
 880 VfatFlush(
 881     PVFAT_IRP_CONTEXT IrpContext);
 882
 883 NTSTATUS
 884 VfatFlushVolume(
 885     PDEVICE_EXTENSION DeviceExt,
 886     PVFATFCB VolumeFcb);
 887
 888 /* fsctl.c */
 889
 890 NTSTATUS
 891 VfatFileSystemControl(
 892     PVFAT_IRP_CONTEXT IrpContext);
 893
 894 /* iface.c */
 895
 896 NTSTATUS
 897 NTAPI
 898 DriverEntry(
 899     PDRIVER_OBJECT DriverObject,
 900     PUNICODE_STRING RegistryPath);
 901
 902
 903 /* misc.c */
 904
 905 NTSTATUS
 906 VfatQueueRequest(
 907     PVFAT_IRP_CONTEXT IrpContext);
 908
 909 PVFAT_IRP_CONTEXT
 910 VfatAllocateIrpContext(
 911     PDEVICE_OBJECT DeviceObject,
 912     PIRP Irp);
 913
 914 VOID
 915 VfatFreeIrpContext(
 916     PVFAT_IRP_CONTEXT IrpContext);
 917
 918 DRIVER_DISPATCH
 919 VfatBuildRequest;
 920
 921 NTSTATUS
 922 NTAPI
 923 VfatBuildRequest(
 924     PDEVICE_OBJECT DeviceObject,
 925     PIRP Irp);
 926
 927 PVOID
 928 VfatGetUserBuffer(
 929     IN PIRP);
 930
 931 NTSTATUS
 932 VfatLockUserBuffer(
 933     IN PIRP,
 934     IN ULONG,
 935     IN LOCK_OPERATION);
 936
 937 BOOLEAN
 938 VfatCheckForDismount(
 939     IN PDEVICE_EXTENSION DeviceExt,
 940     IN BOOLEAN Create);
 941
 942 /* pnp.c */
 943
 944 NTSTATUS
 945 VfatPnp(
 946     PVFAT_IRP_CONTEXT IrpContext);
 947
 948 /* rw.c */
 949
 950 NTSTATUS
 951 VfatRead(
 952     PVFAT_IRP_CONTEXT IrpContext);
 953
 954 NTSTATUS
 955 VfatWrite(
 956     PVFAT_IRP_CONTEXT IrpContext);
 957
 958 NTSTATUS
 959 NextCluster(
 960     PDEVICE_EXTENSION DeviceExt,
 961     ULONG FirstCluster,
 962     PULONG CurrentCluster,
 963     BOOLEAN Extend);
 964
 965 /* shutdown.c */
 966
 967 DRIVER_DISPATCH
 968 VfatShutdown;
 969
 970 NTSTATUS
 971 NTAPI
 972 VfatShutdown(
 973     PDEVICE_OBJECT DeviceObject,
 974     PIRP Irp);
 975
 976 /* string.c */
 977
 978 VOID
 979 vfatSplitPathName(
 980     PUNICODE_STRING PathNameU,
 981     PUNICODE_STRING DirNameU,
 982     PUNICODE_STRING FileNameU);
 983
 984 BOOLEAN
 985 vfatIsLongIllegal(
 986     WCHAR c);
 987
 988 BOOLEAN
 989 wstrcmpjoki(
 990     PWSTR s1,
 991     PWSTR s2);
 992
 993 /* volume.c */
 994
 995 NTSTATUS
 996 VfatQueryVolumeInformation(
 997     PVFAT_IRP_CONTEXT IrpContext);
 998
 999 NTSTATUS
1000 VfatSetVolumeInformation(
1001     PVFAT_IRP_CONTEXT IrpContext);
1002
1003 #endif /* _FASTFAT_PCH_ */