msdos_fs.h File Reference

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Data Structures
struct	fat_boot_sector
struct	fat_boot_fsinfo
struct	msdos_dir_entry
struct	msdos_dir_slot
struct	fat_slot_info
Defines
#define	SECTOR_SIZE   512 /* sector size (bytes) */
#define	SECTOR_BITS   9 /* log2(SECTOR_SIZE) */
#define	MSDOS_DPB   (MSDOS_DPS) /* dir entries per block */
#define	MSDOS_DPB_BITS   4 /* log2(MSDOS_DPB) */
#define	MSDOS_DPS   (SECTOR_SIZE / sizeof(struct msdos_dir_entry))
#define	MSDOS_DPS_BITS   4 /* log2(MSDOS_DPS) */
#define	MSDOS_SUPER_MAGIC   0x4d44 /* MD */
#define	MSDOS_ROOT_INO   1 /* == MINIX_ROOT_INO */
#define	MSDOS_DIR_BITS   5 /* log2(sizeof(struct msdos_dir_entry)) */
#define	FAT_MAX_DIR_ENTRIES   (65536)
#define	FAT_MAX_DIR_SIZE   (FAT_MAX_DIR_ENTRIES << MSDOS_DIR_BITS)
#define	ATTR_NONE   0 /* no attribute bits */
#define	ATTR_RO   1 /* read-only */
#define	ATTR_HIDDEN   2 /* hidden */
#define	ATTR_SYS   4 /* system */
#define	ATTR_VOLUME   8 /* volume label */
#define	ATTR_DIR   16 /* directory */
#define	ATTR_ARCH   32 /* archived */
#define	ATTR_UNUSED   (ATTR_VOLUME | ATTR_ARCH | ATTR_SYS | ATTR_HIDDEN)
#define	ATTR_EXT   (ATTR_RO | ATTR_HIDDEN | ATTR_SYS | ATTR_VOLUME)
#define	CASE_LOWER_BASE   8 /* base is lower case */
#define	CASE_LOWER_EXT   16 /* extension is lower case */
#define	DELETED_FLAG   0xe5 /* marks file as deleted when in name[0] */
#define	IS_FREE(n)   (!*(n) || *(n) == DELETED_FLAG)
#define	MSDOS_VALID_MODE   (S_IFREG | S_IFDIR | S_IRWXU | S_IRWXG | S_IRWXO)
#define	MSDOS_MKMODE(a, m)   (m & (a & ATTR_RO ? S_IRUGO|S_IXUGO : S_IRWXUGO))
#define	MSDOS_NAME   11 /* maximum name length */
#define	MSDOS_LONGNAME   256 /* maximum name length */
#define	MSDOS_SLOTS   21 /* max # of slots for short and long names */
#define	MSDOS_DOT   ". " /* ".", padded to MSDOS_NAME chars */
#define	MSDOS_DOTDOT   ".. " /* "..", padded to MSDOS_NAME chars */
#define	FAT_VALID_MEDIA(x)   ((0xF8 <= (x) && (x) <= 0xFF) || (x) == 0xF0)
#define	FAT_FIRST_ENT(s, x)
#define	FAT_START_ENT   2
#define	MAX_FAT12   0xFF4
#define	MAX_FAT16   0xFFF4
#define	MAX_FAT32   0x0FFFFFF6
#define	MAX_FAT(s)
#define	BAD_FAT12   0xFF7
#define	BAD_FAT16   0xFFF7
#define	BAD_FAT32   0x0FFFFFF7
#define	EOF_FAT12   0xFFF
#define	EOF_FAT16   0xFFFF
#define	EOF_FAT32   0x0FFFFFFF
#define	FAT_ENT_FREE   (0)
#define	FAT_ENT_BAD   (BAD_FAT32)
#define	FAT_ENT_EOF   (EOF_FAT32)
#define	FAT_FSINFO_SIG1   0x41615252
#define	FAT_FSINFO_SIG2   0x61417272
#define	IS_FSINFO(x)
#define	VFAT_IOCTL_READDIR_BOTH   _IOR('r', 1, struct dirent [2])
#define	VFAT_IOCTL_READDIR_SHORT   _IOR('r', 2, struct dirent [2])
#define	FAT_IOCTL_GET_ATTRIBUTES   _IOR('r', 0x10, __u32)
#define	FAT_IOCTL_SET_ATTRIBUTES   _IOW('r', 0x11, __u32)
#define	VFAT_SFN_DISPLAY_LOWER   0x0001 /* convert to lowercase for display */
#define	VFAT_SFN_DISPLAY_WIN95   0x0002 /* emulate win95 rule for display */
#define	VFAT_SFN_DISPLAY_WINNT   0x0004 /* emulate winnt rule for display */
#define	VFAT_SFN_CREATE_WIN95   0x0100 /* emulate win95 rule for create */
#define	VFAT_SFN_CREATE_WINNT   0x0200 /* emulate winnt rule for create */