#include <linux/types.h>
#include <linux/magic.h>
#include <asm/byteorder.h>

Data Structures
struct	__fat_dirent

struct	fat_boot_sector

struct	fat_boot_fsinfo

struct	msdos_dir_entry

struct	msdos_dir_slot

Macros
#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_LONGNAME 256 /* maximum name length */

#define	CF_LE_W(v) le16_to_cpu(v)

#define	CF_LE_L(v) le32_to_cpu(v)

#define	CT_LE_W(v) cpu_to_le16(v)

#define	CT_LE_L(v) cpu_to_le32(v)

#define	MSDOS_ROOT_INO 1 /* The root inode number */

#define	MSDOS_FSINFO_INO 2 /* Used for managing the FSINFO block */

#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	FAT_LFN_LEN 255 /* maximum long name length */

#define	MSDOS_NAME 11 /* 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_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 __fat_dirent[2])

#define	VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct __fat_dirent[2])

#define	FAT_IOCTL_GET_ATTRIBUTES _IOR('r', 0x10, __u32)

#define	FAT_IOCTL_SET_ATTRIBUTES _IOW('r', 0x11, __u32)

Macro Definition Documentation

#define ATTR_ARCH 32 /* archived */

Definition at line 39 of file msdos_fs.h.

#define ATTR_DIR 16 /* directory */

Definition at line 38 of file msdos_fs.h.

#define ATTR_EXT (ATTR_RO | ATTR_HIDDEN | ATTR_SYS | ATTR_VOLUME)

Definition at line 44 of file msdos_fs.h.

#define ATTR_HIDDEN 2 /* hidden */

Definition at line 35 of file msdos_fs.h.

#define ATTR_NONE 0 /* no attribute bits */

Definition at line 33 of file msdos_fs.h.

#define ATTR_RO 1 /* read-only */

Definition at line 34 of file msdos_fs.h.

#define ATTR_SYS 4 /* system */

Definition at line 36 of file msdos_fs.h.

#define ATTR_UNUSED (ATTR_VOLUME | ATTR_ARCH | ATTR_SYS | ATTR_HIDDEN)

Definition at line 42 of file msdos_fs.h.

#define ATTR_VOLUME 8 /* volume label */

Definition at line 37 of file msdos_fs.h.

#define BAD_FAT12 0xFF7

Definition at line 72 of file msdos_fs.h.

#define BAD_FAT16 0xFFF7

Definition at line 73 of file msdos_fs.h.

#define BAD_FAT32 0x0FFFFFF7

Definition at line 74 of file msdos_fs.h.

#define CASE_LOWER_BASE 8 /* base is lower case */

Definition at line 46 of file msdos_fs.h.

#define CASE_LOWER_EXT 16 /* extension is lower case */

Definition at line 47 of file msdos_fs.h.

#define CF_LE_L ( v ) le32_to_cpu(v)

Definition at line 20 of file msdos_fs.h.

#define CF_LE_W ( v ) le16_to_cpu(v)

Definition at line 19 of file msdos_fs.h.

#define CT_LE_L ( v ) cpu_to_le32(v)

Definition at line 22 of file msdos_fs.h.

#define CT_LE_W ( v ) cpu_to_le16(v)

Definition at line 21 of file msdos_fs.h.

#define DELETED_FLAG 0xe5 /* marks file as deleted when in name[0] */

Definition at line 49 of file msdos_fs.h.

#define EOF_FAT12 0xFFF

Definition at line 77 of file msdos_fs.h.

#define EOF_FAT16 0xFFFF

Definition at line 78 of file msdos_fs.h.

#define EOF_FAT32 0x0FFFFFFF

Definition at line 79 of file msdos_fs.h.

#define FAT_ENT_BAD (BAD_FAT32)

Definition at line 82 of file msdos_fs.h.

#define FAT_ENT_EOF (EOF_FAT32)

Definition at line 83 of file msdos_fs.h.

#define FAT_ENT_FREE (0)

Definition at line 81 of file msdos_fs.h.

#define FAT_FIRST_ENT	(	s,
		x
	)

Value:

((MSDOS_SB(s)->fat_bits == 32 ? 0x0FFFFF00 : \

MSDOS_SB(s)->fat_bits == 16 ? 0xFF00 : 0xF00) | (x))

Definition at line 58 of file msdos_fs.h.

#define FAT_FSINFO_SIG1 0x41615252

Definition at line 85 of file msdos_fs.h.

#define FAT_FSINFO_SIG2 0x61417272

Definition at line 86 of file msdos_fs.h.

#define FAT_IOCTL_GET_ATTRIBUTES _IOR('r', 0x10, __u32)

Definition at line 103 of file msdos_fs.h.

#define FAT_IOCTL_SET_ATTRIBUTES _IOW('r', 0x11, __u32)

Definition at line 104 of file msdos_fs.h.

#define FAT_LFN_LEN 255 /* maximum long name length */

Definition at line 52 of file msdos_fs.h.

#define FAT_MAX_DIR_ENTRIES (65536)

Definition at line 30 of file msdos_fs.h.

#define FAT_MAX_DIR_SIZE (FAT_MAX_DIR_ENTRIES << MSDOS_DIR_BITS)

Definition at line 31 of file msdos_fs.h.

#define FAT_START_ENT 2

Definition at line 62 of file msdos_fs.h.

#define IS_FREE ( n ) (!*(n) || *(n) == DELETED_FLAG)

Definition at line 50 of file msdos_fs.h.

#define IS_FSINFO ( x )

Value:

(le32_to_cpu((x)->signature1) == FAT_FSINFO_SIG1 \

&& le32_to_cpu((x)->signature2) == FAT_FSINFO_SIG2)

Definition at line 87 of file msdos_fs.h.

#define MAX_FAT ( s )

Value:

(MSDOS_SB(s)->fat_bits == 32 ? MAX_FAT32 : \

MSDOS_SB(s)->fat_bits == 16 ? MAX_FAT16 : MAX_FAT12)

Definition at line 68 of file msdos_fs.h.

#define MAX_FAT12 0xFF4

Definition at line 65 of file msdos_fs.h.

#define MAX_FAT16 0xFFF4

Definition at line 66 of file msdos_fs.h.

#define MAX_FAT32 0x0FFFFFF6

Definition at line 67 of file msdos_fs.h.

#define MSDOS_DIR_BITS 5 /* log2(sizeof(struct msdos_dir_entry)) */

Definition at line 27 of file msdos_fs.h.

#define MSDOS_DOT ". " /* ".", padded to MSDOS_NAME chars */

Definition at line 55 of file msdos_fs.h.

#define MSDOS_DOTDOT ".. " /* "..", padded to MSDOS_NAME chars */

Definition at line 56 of file msdos_fs.h.

#define MSDOS_DPB (MSDOS_DPS) /* dir entries per block */

Definition at line 14 of file msdos_fs.h.

#define MSDOS_DPB_BITS 4 /* log2(MSDOS_DPB) */

Definition at line 15 of file msdos_fs.h.

#define MSDOS_DPS (SECTOR_SIZE / sizeof(struct msdos_dir_entry))

Definition at line 16 of file msdos_fs.h.

#define MSDOS_DPS_BITS 4 /* log2(MSDOS_DPS) */

Definition at line 17 of file msdos_fs.h.

#define MSDOS_FSINFO_INO 2 /* Used for managing the FSINFO block */

Definition at line 25 of file msdos_fs.h.

#define MSDOS_LONGNAME 256 /* maximum name length */

Definition at line 18 of file msdos_fs.h.

#define MSDOS_NAME 11 /* maximum name length */

Definition at line 53 of file msdos_fs.h.

#define MSDOS_ROOT_INO 1 /* The root inode number */

Definition at line 24 of file msdos_fs.h.

#define MSDOS_SLOTS 21 /* max # of slots for short and long names */

Definition at line 54 of file msdos_fs.h.

#define SECTOR_BITS 9 /* log2(SECTOR_SIZE) */

Definition at line 13 of file msdos_fs.h.

#define SECTOR_SIZE 512 /* sector size (bytes) */

Definition at line 12 of file msdos_fs.h.

#define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct __fat_dirent[2])

Definition at line 100 of file msdos_fs.h.

#define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct __fat_dirent[2])

Definition at line 101 of file msdos_fs.h.

Data Structures

Macros

Macro Definition Documentation