- Add DDK alignment macros and move/rename the ones in the NDK for user-mode only...
[reactos.git] / reactos / drivers / fs / vfat / vfat.h
index 1c082ce..d1f8f1d 100644 (file)
@@ -1,7 +1,21 @@
-/* $Id: vfat.h,v 1.42 2002/06/10 21:15:58 hbirr Exp $ */
-
-#include <ddk/ntifs.h>
-
+#include <debug.h>
+#include <ntifs.h>
+#include <ntdddisk.h>
+#include <reactos/helper.h>
+
+#ifdef __GNUC__
+#include <ndk/ntndk.h>
+#include <ccros.h>
+
+#define USE_ROS_CC_AND_FS
+#else
+#define KEBUGCHECK KeBugCheck
+#define KEBUGCHECKEX KeBugCheckEx
+#define ROUND_DOWN(N, S) ((N) - ((N) % (S)))
+#define ROUND_UP(N, S) ROUND_DOWN((N) + (S) - 1, (S))
+#endif
+
+#include <pshpack1.h>
 struct _BootSector
 {
   unsigned char  magic0, res0, magic1;
@@ -17,8 +31,9 @@ struct _BootSector
   unsigned char  Drive, Res1, Sig;
   unsigned long  VolumeID;
   unsigned char  VolumeLabel[11], SysType[8];
-  unsigned char  Res2[450];
-} __attribute__((packed));
+  unsigned char  Res2[448];
+  unsigned short Signatur1;
+};
 
 struct _BootSector32
 {
@@ -37,18 +52,28 @@ struct _BootSector32
   unsigned short FSVersion;                            // 42
   unsigned long  RootCluster;                          // 44
   unsigned short FSInfoSector;                         // 48
-  unsigned long  BootBackup;                           // 50
-  unsigned char  Res3[10];                             // 54
+  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[418];                            // 90
-  unsigned long  Signature1;                           // 508
-} __attribute__((packed));
+  unsigned char  Res2[420];                            // 90
+  unsigned short Signature1;                           // 510
+};
 
-struct _BootBackupSector
+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
@@ -57,22 +82,44 @@ struct _BootBackupSector
   unsigned long  NextCluster;                          // 492
   unsigned char  Res7[12];                             // 496
   unsigned long  Signatur2;                            // 508
-} __attribute__((packed));
+};
 
 typedef struct _BootSector BootSector;
 
 struct _FATDirEntry
 {
-  unsigned char  Filename[8], Ext[3], Attrib, Res[2];
+  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;
-} __attribute__((packed));
+};
 
-typedef struct _FATDirEntry FATDirEntry, FAT_DIR_ENTRY, *PFAT_DIR_ENTRY;
+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
 {
@@ -84,19 +131,57 @@ struct _slot
   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
-} __attribute__((packed));
-
+};
 
 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 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
 {
@@ -114,18 +199,39 @@ typedef struct
   ULONG NumberOfClusters;
   ULONG FatType;
   ULONG Sectors;
-}
-FATINFO, *PFATINFO;
+  BOOLEAN FixedMedia;
+FATINFO, *PFATINFO;
 
 struct _VFATFCB;
+struct _VFAT_DIRENTRY_CONTEXT;
 
-typedef struct
+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;
@@ -135,16 +241,34 @@ typedef struct
   BOOLEAN AvailableClustersValid;
   ULONG Flags;
   struct _VFATFCB * VolumeFcb;
-}
-DEVICE_EXTENSION, *PDEVICE_EXTENSION, VCB, *PVCB;
+
+  /* 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;
-}
-VFAT_GLOBAL_DATA, *PVFAT_GLOBAL_DATA;
+  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;
 
@@ -153,73 +277,125 @@ extern PVFAT_GLOBAL_DATA VfatGlobalData;
 #define FCB_IS_FAT              0x0004
 #define FCB_IS_PAGE_FILE        0x0008
 #define FCB_IS_VOLUME           0x0010
-#define FCB_UPDATE_DIRENTRY    0x0020
+#define FCB_IS_DIRTY            0x0020
+#define FCB_IS_FATX_ENTRY       0x0040
 
 typedef struct _VFATFCB
 {
-  REACTOS_COMMON_FCB_HEADER RFCB;
+  /* FCB header required by ROS/NT */
+  FSRTL_COMMON_FCB_HEADER RFCB;
   SECTION_OBJECT_POINTERS SectionObjectPointers;
-  FATDirEntry entry;
-  /* point on filename (250 chars max) in PathName */
-  WCHAR *ObjectName;
-  /* path+filename 260 max */
-  WCHAR PathName[MAX_PATH];
+  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;
-  PDEVICE_EXTENSION pDevExt;
+
+  /* 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;
-  ERESOURCE PagingIoResource;
-  ERESOURCE MainResource;
-  ULONG TimerCount;
 
-  /* Structure members used only for paging files. */
-  ULONG FatChainSize;
-  PULONG FatChain;
-}
-VFATFCB, *PVFATFCB;
+  /* 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
 {
-  VFATFCB *   pFcb;
-  LIST_ENTRY     NextCCB;
-  PFILE_OBJECT   PtrFileObject;
   LARGE_INTEGER  CurrentByteOffset;
   /* for DirectoryControl */
   ULONG Entry;
   /* for DirectoryControl */
-  PWCHAR DirectorySearchPattern;
-  ULONG LastCluster;
-  ULONG LastOffset;
-
-}
-VFATCCB, *PVFATCCB;
+  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
 {
-   WORD        Second:5;
-   WORD        Minute:6;
-   WORD Hour:5;
+   USHORT Second:5;
+   USHORT Minute:6;
+   USHORT Hour:5;
 }
 DOSTIME, *PDOSTIME;
 
 typedef struct __DOSDATE
 {
-   WORD        Day:5;
-   WORD        Month:4;
-   WORD Year:5;
+   USHORT Day:5;
+   USHORT Month:4;
+   USHORT Year:5;
 }
 DOSDATE, *PDOSDATE;
 
-#define IRPCONTEXT_CANWAIT  0x0001
+#define IRPCONTEXT_CANWAIT         0x0001
+#define IRPCONTEXT_PENDINGRETURNED  0x0002
 
 typedef struct
 {
@@ -232,12 +408,23 @@ typedef struct
    UCHAR MajorFunction;
    UCHAR MinorFunction;
    PFILE_OBJECT FileObject;
-}
-VFAT_IRP_CONTEXT, *PVFAT_IRP_CONTEXT;
+   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,
+NTSTATUS NTAPI VfatShutdown (PDEVICE_OBJECT DeviceObject,
                                PIRP Irp);
 
 /*  --------------------------------------------------------  volume.c  */
@@ -248,63 +435,62 @@ NTSTATUS VfatSetVolumeInformation (PVFAT_IRP_CONTEXT IrpContext);
 
 /*  ------------------------------------------------------  blockdev.c  */
 
-NTSTATUS VfatReadSectors(IN PDEVICE_OBJECT pDeviceObject,
-                         IN ULONG DiskSector,
-                         IN ULONG SectorCount,
-                         IN PUCHAR Buffer);
+NTSTATUS VfatReadDisk(IN PDEVICE_OBJECT pDeviceObject,
+                      IN PLARGE_INTEGER ReadOffset,
+                      IN ULONG ReadLength,
+                      IN PUCHAR Buffer,
+                      IN BOOLEAN Override);
 
-NTSTATUS VfatWriteSectors(IN PDEVICE_OBJECT pDeviceObject,
-                          IN ULONG DiskSector,
-                          IN ULONG SectorCount,
-                          IN PUCHAR Buffer);
+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 OUT PVOID OutputBuffer,
+                                  IN OUT PULONG pOutputBufferSize,
+                                  IN BOOLEAN Override);
 
 /*  -----------------------------------------------------------  dir.c  */
 
 NTSTATUS VfatDirectoryControl (PVFAT_IRP_CONTEXT);
 
-BOOL FsdDosDateTimeToFileTime (WORD wDosDate,
-                               WORD wDosTime,
-                               TIME *FileTime);
+BOOLEAN FsdDosDateTimeToSystemTime (PDEVICE_EXTENSION DeviceExt,
+                                    USHORT DosDate,
+                                    USHORT DosTime,
+                                    PLARGE_INTEGER SystemTime);
 
-BOOL FsdFileTimeToDosDateTime (TIME *FileTime,
-                               WORD *pwDosDate,
-                               WORD *pwDosTime);
+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,
-                       PWSTR FileName);
-
 NTSTATUS FindFile (PDEVICE_EXTENSION DeviceExt,
-                   PVFATFCB Fcb,
                    PVFATFCB Parent,
-                   PWSTR FileToFind,
-                   PULONG pDirIndex,
-                   PULONG pDirIndex2);
+                   PUNICODE_STRING FileToFindU,
+                  PVFAT_DIRENTRY_CONTEXT DirContext,
+                  BOOLEAN First);
 
-VOID vfat8Dot3ToString (PCHAR pBasename,
-                        PCHAR pExtension,
-                        PWSTR pName);
+VOID vfat8Dot3ToString (PFAT_DIR_ENTRY pEntry,
+                        PUNICODE_STRING NameU);
 
 NTSTATUS ReadVolumeLabel(PDEVICE_EXTENSION DeviceExt,
                          PVPB Vpb);
 
-BOOLEAN IsDeletedEntry (PVOID Block,
-                        ULONG Offset);
-
-BOOLEAN IsLastEntry (PVOID Block,
-                     ULONG Offset);
-
 /*  ---------------------------------------------------------  close.c  */
 
 NTSTATUS VfatClose (PVFAT_IRP_CONTEXT IrpContext);
@@ -316,6 +502,25 @@ NTSTATUS VfatCloseFile(PDEVICE_EXTENSION DeviceExt,
 
 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);
@@ -326,119 +531,139 @@ 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,
+NTSTATUS NTAPI DriverEntry (PDRIVER_OBJECT DriverObject,
                               PUNICODE_STRING RegistryPath);
 
 /*  ---------------------------------------------------------  dirwr.c  */
 
-NTSTATUS addEntry (PDEVICE_EXTENSION DeviceExt,
-                   PFILE_OBJECT pFileObject,
-                   ULONG RequestedOptions,UCHAR ReqAttr);
+NTSTATUS VfatAddEntry (PDEVICE_EXTENSION DeviceExt,
+                      PUNICODE_STRING PathNameU,
+                      PVFATFCB* Fcb,
+                      PVFATFCB ParentFcb,
+                      ULONG RequestedOptions,
+                      UCHAR ReqAttr);
 
-NTSTATUS updEntry (PDEVICE_EXTENSION DeviceExt,
-                   PFILE_OBJECT pFileObject);
+NTSTATUS VfatUpdateEntry (PVFATFCB pFcb);
 
-NTSTATUS delEntry(PDEVICE_EXTENSION,
-                  PFILE_OBJECT);
+NTSTATUS VfatDelEntry(PDEVICE_EXTENSION, PVFATFCB);
+
+BOOLEAN
+vfatFindDirSpace(PDEVICE_EXTENSION DeviceExt,
+                 PVFATFCB pDirFcb,
+                 ULONG nbSlots,
+                 PULONG start);
 
 /*  --------------------------------------------------------  string.c  */
 
-VOID vfat_initstr (wchar_t *wstr,
-                   ULONG wsize);
+VOID
+vfatSplitPathName(PUNICODE_STRING PathNameU,
+                 PUNICODE_STRING DirNameU,
+                 PUNICODE_STRING FileNameU);
 
-wchar_t* vfat_wcsncat (wchar_t * dest,
-                       const wchar_t * src,
-                       size_t wstart,
-                       size_t wcount);
+BOOLEAN vfatIsLongIllegal(WCHAR c);
 
-wchar_t* vfat_wcsncpy (wchar_t * dest,
-                       const wchar_t *src,
-                       size_t wcount);
+BOOLEAN wstrcmpjoki (PWSTR s1,
+                     PWSTR s2);
 
-wchar_t* vfat_movstr (wchar_t *src,
-                      ULONG dpos,
-                      ULONG spos,
-                      ULONG len);
+/*  -----------------------------------------------------------  fat.c  */
 
-BOOLEAN wstrcmpi (PWSTR s1,
-                  PWSTR s2);
+NTSTATUS FAT12GetNextCluster(PDEVICE_EXTENSION DeviceExt,
+                             ULONG CurrentCluster,
+                             PULONG NextCluster);
 
-BOOLEAN wstrcmpjoki (PWSTR s1,
-                     PWSTR s2);
+NTSTATUS FAT12FindAndMarkAvailableCluster(PDEVICE_EXTENSION DeviceExt,
+                                          PULONG Cluster);
 
-PWCHAR vfatGetNextPathElement (PWCHAR  pFileName);
+NTSTATUS FAT12WriteCluster(PDEVICE_EXTENSION DeviceExt,
+                           ULONG ClusterToWrite,
+                           ULONG NewValue,
+                           PULONG OldValue);
 
-VOID vfatWSubString (PWCHAR pTarget,
-                     const PWCHAR pSource,
-                     size_t pLength);
+NTSTATUS FAT16GetNextCluster(PDEVICE_EXTENSION DeviceExt,
+                             ULONG CurrentCluster,
+                             PULONG NextCluster);
 
-BOOL  vfatIsFileNameValid (PWCHAR pFileName);
+NTSTATUS FAT16FindAndMarkAvailableCluster(PDEVICE_EXTENSION DeviceExt,
+                                          PULONG Cluster);
 
-/*  -----------------------------------------------------------  fat.c  */
+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,
-                          PVFATFCB Fcb,
                           ULONG FirstCluster,
                           ULONG FileOffset,
                           PULONG Cluster,
                           BOOLEAN Extend);
 
-ULONG ClusterToSector (PDEVICE_EXTENSION DeviceExt,
-                       ULONG Cluster);
+ULONGLONG ClusterToSector (PDEVICE_EXTENSION DeviceExt,
+                          ULONG Cluster);
 
 NTSTATUS GetNextCluster (PDEVICE_EXTENSION DeviceExt,
                          ULONG CurrentCluster,
-                         PULONG NextCluster,
-                         BOOLEAN Extend);
-
-NTSTATUS GetNextSector (PDEVICE_EXTENSION DeviceExt,
-                        ULONG CurrentSector,
-                        PULONG NextSector,
-                        BOOLEAN Extend);
-
-NTSTATUS VfatRawReadCluster (PDEVICE_EXTENSION DeviceExt,
-                             ULONG FirstCluster,
-                             PVOID Buffer,
-                             ULONG Cluster,
-                             ULONG Count);
-
-NTSTATUS VfatRawWriteCluster (PDEVICE_EXTENSION DeviceExt,
-                              ULONG FirstCluster,
-                              PVOID Buffer,
-                              ULONG Cluster,
-                              ULONG Count);
+                         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,
-                                    PFAT_DIR_ENTRY  pDirEntry);
-
-BOOL  vfatIsDirEntryDeleted (FATDirEntry * pFatDirEntry);
-
-BOOL  vfatIsDirEntryVolume (FATDirEntry * pFatDirEntry);
+                                    PDIR_ENTRY  pDirEntry);
 
-BOOL  vfatIsDirEntryEndMarker (FATDirEntry * pFatDirEntry);
+BOOLEAN VfatIsDirectoryEmpty(PVFATFCB Fcb);
 
-VOID vfatGetDirEntryName (PFAT_DIR_ENTRY pDirEntry,
-                          PWSTR  pEntryName);
+NTSTATUS FATGetNextDirEntry(PVOID * pContext,
+                            PVOID * pPage,
+                            IN PVFATFCB pDirFcb,
+                            IN PVFAT_DIRENTRY_CONTEXT DirContext,
+                            BOOLEAN First);
 
-NTSTATUS  vfatGetNextDirEntry (PDEVICE_EXTENSION  pDeviceExt,
-                               PVFATFCB  pDirectoryFCB,
-                               ULONG * pDirectoryIndex,
-                               PWSTR pLongFileName,
-                               PFAT_DIR_ENTRY pDirEntry);
+NTSTATUS FATXGetNextDirEntry(PVOID * pContext,
+                            PVOID * pPage,
+                            IN PVFATFCB pDirFcb,
+                            IN PVFAT_DIRENTRY_CONTEXT DirContext,
+                            BOOLEAN First);
 
 /*  -----------------------------------------------------------  fcb.c  */
 
-PVFATFCB vfatNewFCB (PWCHAR pFileName);
+PVFATFCB vfatNewFCB (PDEVICE_EXTENSION  pVCB,
+                        PUNICODE_STRING pFileNameU);
 
 VOID vfatDestroyFCB (PVFATFCB  pFCB);
 
+VOID vfatDestroyCCB(PVFATCCB pCcb);
+
 VOID vfatGrabFCB (PDEVICE_EXTENSION  pVCB,
                   PVFATFCB  pFCB);
 
@@ -449,14 +674,15 @@ VOID vfatAddFCBToTable (PDEVICE_EXTENSION  pVCB,
                         PVFATFCB  pFCB);
 
 PVFATFCB vfatGrabFCBFromTable (PDEVICE_EXTENSION  pDeviceExt,
-                               PWSTR  pFileName);
+                               PUNICODE_STRING  pFileNameU);
 
 PVFATFCB vfatMakeRootFCB (PDEVICE_EXTENSION  pVCB);
 
 PVFATFCB vfatOpenRootFCB (PDEVICE_EXTENSION  pVCB);
 
-BOOL vfatFCBIsDirectory (PDEVICE_EXTENSION pVCB,
-                         PVFATFCB FCB);
+BOOLEAN vfatFCBIsDirectory (PVFATFCB FCB);
+
+BOOLEAN vfatFCBIsRoot(PVFATFCB FCB);
 
 NTSTATUS vfatAttachFCBToFileObject (PDEVICE_EXTENSION  vcb,
                                     PVFATFCB  fcb,
@@ -464,19 +690,17 @@ NTSTATUS vfatAttachFCBToFileObject (PDEVICE_EXTENSION  vcb,
 
 NTSTATUS vfatDirFindFile (PDEVICE_EXTENSION  pVCB,
                           PVFATFCB  parentFCB,
-                          PWSTR  elementName,
+                          PUNICODE_STRING FileToFindU,
                           PVFATFCB * fileFCB);
 
 NTSTATUS vfatGetFCBForFile (PDEVICE_EXTENSION  pVCB,
                             PVFATFCB  *pParentFCB,
                             PVFATFCB  *pFCB,
-                            const PWSTR  pFileName);
+                            PUNICODE_STRING pFileNameU);
 
 NTSTATUS vfatMakeFCBFromDirEntry (PVCB  vcb,
                                   PVFATFCB  directoryFCB,
-                                  PWSTR  longName,
-                                  PFAT_DIR_ENTRY  dirEntry,
-                                  ULONG dirIndex,
+                                 PVFAT_DIRENTRY_CONTEXT DirContext,
                                   PVFATFCB * fileFCB);
 
 /*  ------------------------------------------------------------  rw.c  */
@@ -485,28 +709,7 @@ NTSTATUS VfatRead (PVFAT_IRP_CONTEXT IrpContext);
 
 NTSTATUS VfatWrite (PVFAT_IRP_CONTEXT IrpContext);
 
-NTSTATUS vfatExtendSpace (PDEVICE_EXTENSION pDeviceExt,
-                          PFILE_OBJECT pFileObject,
-                          ULONG NewSize);
-
-NTSTATUS VfatWriteFile (PDEVICE_EXTENSION DeviceExt,
-                        PFILE_OBJECT FileObject,
-                        PVOID Buffer,
-                        ULONG Length,
-                        ULONG WriteOffset,
-                        BOOLEAN NoCache,
-                        BOOLEAN PageIo);
-
-
-NTSTATUS VfatReadFile (PDEVICE_EXTENSION DeviceExt,
-                       PFILE_OBJECT FileObject,
-                       PVOID Buffer, ULONG Length,
-                       ULONG ReadOffset,
-                       PULONG LengthRead,
-                       ULONG NoCache);
-
 NTSTATUS NextCluster(PDEVICE_EXTENSION DeviceExt,
-                     PVFATFCB Fcb,
                      ULONG FirstCluster,
                      PULONG CurrentCluster,
                      BOOLEAN Extend);
@@ -520,7 +723,7 @@ PVFAT_IRP_CONTEXT VfatAllocateIrpContext(PDEVICE_OBJECT DeviceObject,
 
 VOID VfatFreeIrpContext(PVFAT_IRP_CONTEXT IrpContext);
 
-NTSTATUS STDCALL VfatBuildRequest (PDEVICE_OBJECT DeviceObject,
+NTSTATUS NTAPI VfatBuildRequest (PDEVICE_OBJECT DeviceObject,
                                    PIRP Irp);
 
 PVOID VfatGetUserBuffer(IN PIRP);
@@ -528,5 +731,15 @@ 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 */