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svn path=/trunk/; revision=38984
This commit is contained in:
Aleksey Bragin 2009-01-20 19:15:08 +00:00
parent 25efba5b5b
commit 2e3d23a37d
1 changed files with 99 additions and 100 deletions
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199
reactos/drivers/filesystems/fastfat_new/fat.h
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@ -65,31 +65,31 @@ typedef union _UCHAR4
//
typedef struct _PACKED_BIOS_PARAMETER_BLOCK
{
UCHAR BytesPerSector[2];
UCHAR SectorsPerCluster[1];
UCHAR ReservedSectors[2];
UCHAR Fats[1];
UCHAR RootEntries[2];
UCHAR Sectors[2];
UCHAR Media[1];
UCHAR SectorsPerFat[2];
UCHAR SectorsPerTrack[2];
UCHAR Heads[2];
UCHAR HiddenSectors[4];
UCHAR LargeSectors[4];
UCHAR BytesPerSector[2];
UCHAR SectorsPerCluster[1];
UCHAR ReservedSectors[2];
UCHAR Fats[1];
UCHAR RootEntries[2];
UCHAR Sectors[2];
UCHAR Media[1];
UCHAR SectorsPerFat[2];
UCHAR SectorsPerTrack[2];
UCHAR Heads[2];
UCHAR HiddenSectors[4];
UCHAR LargeSectors[4];
} PACKED_BIOS_PARAMETER_BLOCK, *PPACKED_BIOS_PARAMETER_BLOCK;
// sizeof = 0x019
typedef struct _PACKED_BIOS_PARAMETER_BLOCK_EX
{
PACKED_BIOS_PARAMETER_BLOCK Block;
UCHAR LargeSectorsPerFat[4];
UCHAR ExtendedFlags[2];
UCHAR FsVersion[2];
UCHAR RootDirFirstCluster[4];
UCHAR FsInfoSector[2];
UCHAR BackupBootSector[2];
UCHAR Reserved[12];
PACKED_BIOS_PARAMETER_BLOCK Block;
UCHAR LargeSectorsPerFat[4];
UCHAR ExtendedFlags[2];
UCHAR FsVersion[2];
UCHAR RootDirFirstCluster[4];
UCHAR FsInfoSector[2];
UCHAR BackupBootSector[2];
UCHAR Reserved[12];
} PACKED_BIOS_PARAMETER_BLOCK_EX, *PPACKED_BIOS_PARAMETER_BLOCK_EX;
// sizeof = 0x035 53
@ -98,82 +98,82 @@ typedef struct _PACKED_BIOS_PARAMETER_BLOCK_EX
//
typedef struct BIOS_PARAMETER_BLOCK
{
USHORT BytesPerSector;
UCHAR SectorsPerCluster;
USHORT ReservedSectors;
UCHAR Fats;
USHORT RootEntries;
USHORT Sectors;
UCHAR Media;
USHORT SectorsPerFat;
USHORT SectorsPerTrack;
USHORT Heads;
ULONG HiddenSectors;
ULONG LargeSectors;
ULONG LargeSectorsPerFat;
USHORT BytesPerSector;
UCHAR SectorsPerCluster;
USHORT ReservedSectors;
UCHAR Fats;
USHORT RootEntries;
USHORT Sectors;
UCHAR Media;
USHORT SectorsPerFat;
USHORT SectorsPerTrack;
USHORT Heads;
ULONG HiddenSectors;
ULONG LargeSectors;
ULONG LargeSectorsPerFat;
union
{
USHORT ExtendedFlags;
USHORT ExtendedFlags;
struct
{
ULONG ActiveFat:4;
ULONG Reserved0:3;
ULONG MirrorDisabled:1;
ULONG Reserved1:8;
ULONG ActiveFat:4;
ULONG Reserved0:3;
ULONG MirrorDisabled:1;
ULONG Reserved1:8;
};
};
USHORT FsVersion;
ULONG RootDirFirstCluster;
USHORT FsInfoSector;
USHORT BackupBootSector;
USHORT FsVersion;
ULONG RootDirFirstCluster;
USHORT FsInfoSector;
USHORT BackupBootSector;
} BIOS_PARAMETER_BLOCK, *PBIOS_PARAMETER_BLOCK;
#define FatValidBytesPerSector(xBytes) \
(!((xBytes) & ((xBytes)-1)) && (xBytes)>=0x80 && (xBytes)<=0x1000)
(!((xBytes) & ((xBytes)-1)) && (xBytes)>=0x80 && (xBytes)<=0x1000)
#define FatValidSectorsPerCluster(xSectors) \
(!((xSectors) & ((xSectors)-1)) && (xSectors)>=0 && (xSectors)<=0x80)
(!((xSectors) & ((xSectors)-1)) && (xSectors)>=0 && (xSectors)<=0x80)
typedef struct _PACKED_BOOT_SECTOR
{
UCHAR Jump[3];
UCHAR Oem[8];
UCHAR Jump[3];
UCHAR Oem[8];
PACKED_BIOS_PARAMETER_BLOCK PackedBpb;
UCHAR PhysicalDriveNumber;
UCHAR CurrentHead;
UCHAR Signature;
UCHAR Id[4];
UCHAR VolumeLabel[11];
UCHAR SystemId[8];
UCHAR PhysicalDriveNumber;
UCHAR CurrentHead;
UCHAR Signature;
UCHAR Id[4];
UCHAR VolumeLabel[11];
UCHAR SystemId[8];
} PACKED_BOOT_SECTOR, *PPACKED_BOOT_SECTOR;
// sizeof = 0x03E
typedef struct _PACKED_BOOT_SECTOR_EX
{
UCHAR Jump[3];
UCHAR Oem[8];
PACKED_BIOS_PARAMETER_BLOCK_EX PackedBpb;
UCHAR PhysicalDriveNumber;
UCHAR CurrentHead;
UCHAR Signature;
UCHAR Id[4];
UCHAR VolumeLabel[11];
UCHAR SystemId[8];
UCHAR Jump[3];
UCHAR Oem[8];
PACKED_BIOS_PARAMETER_BLOCK_EX PackedBpb;
UCHAR PhysicalDriveNumber;
UCHAR CurrentHead;
UCHAR Signature;
UCHAR Id[4];
UCHAR VolumeLabel[11];
UCHAR SystemId[8];
} PACKED_BOOT_SECTOR_EX, *PPACKED_BOOT_SECTOR_EX;
// sizeof = 0x060
#define FatBootSectorJumpValid(xMagic) \
((xMagic)[0] == 0xe9 || (xMagic)[0] == 0xeb || (xMagic)[0] == 0x49)
((xMagic)[0] == 0xe9 || (xMagic)[0] == 0xeb || (xMagic)[0] == 0x49)
typedef struct _FSINFO_SECTOR
{
ULONG SectorBeginSignature;
UCHAR Reserved[480];
ULONG FsInfoSignature;
ULONG FreeClusterCount;
ULONG NextFreeCluster;
UCHAR Reserved0[12];
ULONG SectorEndSignature;
ULONG SectorBeginSignature;
UCHAR Reserved[480];
ULONG FsInfoSignature;
ULONG FreeClusterCount;
ULONG NextFreeCluster;
UCHAR Reserved0[12];
ULONG SectorEndSignature;
} FSINFO_SECTOR, *PFSINFO_SECTOR;
// sizeof = 0x200
#define FSINFO_SECTOR_BEGIN_SIGNATURE 0x41615252
@ -182,11 +182,10 @@ typedef struct _FSINFO_SECTOR
//
// Cluster Markers:
//
//
#define FAT_CLUSTER_AVAILABLE 0x00000000
#define FAT_CLUSTER_RESERVED 0x0ffffff0
#define FAT_CLUSTER_BAD 0x0ffffff7
#define FAT_CLUSTER_LAST 0x0fffffff
#define FAT_CLUSTER_AVAILABLE 0x00000000
#define FAT_CLUSTER_RESERVED 0x0ffffff0
#define FAT_CLUSTER_BAD 0x0ffffff7
#define FAT_CLUSTER_LAST 0x0fffffff
//
// Directory Structure:
//
@ -232,31 +231,31 @@ typedef struct _FAT_DATETIME {
//
typedef struct _DIR_ENTRY
{
UCHAR FileName[11];
UCHAR Attributes;
UCHAR Case;
UCHAR CreationTimeTenMs;
UCHAR FileName[11];
UCHAR Attributes;
UCHAR Case;
UCHAR CreationTimeTenMs;
FAT_DATETIME CreationDateTime;
FAT_DATE LastAccessDate;
union {
USHORT ExtendedAttributes;
USHORT FirstClusterOfFileHi;
};
union {
USHORT ExtendedAttributes;
USHORT FirstClusterOfFileHi;
};
FAT_DATETIME LastWriteDateTime;
USHORT FirstCluster;
ULONG FileSize;
USHORT FirstCluster;
ULONG FileSize;
} DIR_ENTRY, *PDIR_ENTRY;
// sizeof = 0x020
typedef struct _LONG_FILE_NAME_ENTRY {
UCHAR Index;
UCHAR NameA[10];
UCHAR Attributes;
UCHAR Type;
UCHAR Checksum;
USHORT NameB[6];
USHORT Reserved;
USHORT NameC[2];
UCHAR Index;
UCHAR NameA[10];
UCHAR Attributes;
UCHAR Type;
UCHAR Checksum;
USHORT NameB[6];
USHORT Reserved;
USHORT NameC[2];
} LONG_FILE_NAME_ENTRY, *PLONG_FILE_NAME_ENTRY;
// sizeof = 0x020
@ -285,14 +284,14 @@ typedef struct _LONG_FILE_NAME_ENTRY {
FAT_DIRENT_ATTR_VOLUME_ID)
typedef struct _PACKED_LFN_DIRENT {
UCHAR Ordinal; // offset = 0
UCHAR Name1[10]; // offset = 1 (Really 5 chars, but not WCHAR aligned)
UCHAR Attributes; // offset = 11
UCHAR Type; // offset = 12
UCHAR Checksum; // offset = 13
WCHAR Name2[6]; // offset = 14
USHORT MustBeZero; // offset = 26
WCHAR Name3[2]; // offset = 28
UCHAR Ordinal; // offset = 0
UCHAR Name1[10]; // offset = 1 (Really 5 chars, but not WCHAR aligned)
UCHAR Attributes; // offset = 11
UCHAR Type; // offset = 12
UCHAR Checksum; // offset = 13
WCHAR Name2[6]; // offset = 14
USHORT MustBeZero; // offset = 26
WCHAR Name3[2]; // offset = 28
} PACKED_LFN_DIRENT; // sizeof = 32
#endif//__FAT_H__