This graph shows which files directly or indirectly include this file:

Classes
struct	fat_boot_sector_t

struct	fat_boot_fsinfo_t

struct	msdos_dir_entry_t

struct	msdos_dir_slot_t

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	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 0x0000 /* no attribute bits */

#define	ATTR_RO 0x0001 /* read-only */

#define	ATTR_HIDDEN 0x0002 /* hidden */

#define	ATTR_SYS 0x0004 /* system */

#define	ATTR_VOLUME 0x0008 /* volume label */

#define	ATTR_DIR 0x0010 /* directory */

#define	ATTR_ARCH 0x0020 /* 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_START_ENT 2

#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) ((x)->signature1 == FAT_FSINFO_SIG1 && (x)->signature2 == FAT_FSINFO_SIG2)

#define	FAT_STATE_DIRTY 0x01

Macro Definition Documentation

◆ ATTR_ARCH

#define ATTR_ARCH 0x0020 /* archived */

◆ ATTR_DIR

#define ATTR_DIR 0x0010 /* directory */

◆ ATTR_EXT

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

◆ ATTR_HIDDEN

#define ATTR_HIDDEN 0x0002 /* hidden */

◆ ATTR_NONE

#define ATTR_NONE 0x0000 /* no attribute bits */

◆ ATTR_RO

#define ATTR_RO 0x0001 /* read-only */

◆ ATTR_SYS

#define ATTR_SYS 0x0004 /* system */

◆ ATTR_UNUSED

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

◆ ATTR_VOLUME

#define ATTR_VOLUME 0x0008 /* volume label */

◆ BAD_FAT12

#define BAD_FAT12 0xFF7

◆ BAD_FAT16

#define BAD_FAT16 0xFFF7

◆ BAD_FAT32

#define BAD_FAT32 0x0FFFFFF7

◆ CASE_LOWER_BASE

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

◆ CASE_LOWER_EXT

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

◆ DELETED_FLAG

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

◆ EOF_FAT12

#define EOF_FAT12 0xFFF

◆ EOF_FAT16

#define EOF_FAT16 0xFFFF

◆ EOF_FAT32

#define EOF_FAT32 0x0FFFFFFF

◆ FAT_ENT_BAD

#define FAT_ENT_BAD (BAD_FAT32)

◆ FAT_ENT_EOF

#define FAT_ENT_EOF (EOF_FAT32)

◆ FAT_ENT_FREE

#define FAT_ENT_FREE (0)

◆ FAT_FSINFO_SIG1

#define FAT_FSINFO_SIG1 0x41615252

◆ FAT_FSINFO_SIG2

#define FAT_FSINFO_SIG2 0x61417272

◆ FAT_LFN_LEN

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

◆ FAT_MAX_DIR_ENTRIES

#define FAT_MAX_DIR_ENTRIES (65536)

◆ FAT_MAX_DIR_SIZE

#define FAT_MAX_DIR_SIZE (FAT_MAX_DIR_ENTRIES << MSDOS_DIR_BITS)

◆ FAT_START_ENT

#define FAT_START_ENT 2

◆ FAT_STATE_DIRTY

#define FAT_STATE_DIRTY 0x01

◆ IS_FREE

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

◆ IS_FSINFO

#define IS_FSINFO ( x ) ((x)->signature1 == FAT_FSINFO_SIG1 && (x)->signature2 == FAT_FSINFO_SIG2)

◆ MSDOS_DIR_BITS

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

◆ MSDOS_DOT

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

◆ MSDOS_DOTDOT

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

◆ MSDOS_DPB

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

◆ MSDOS_DPB_BITS

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

◆ MSDOS_DPS

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

◆ MSDOS_DPS_BITS

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

◆ MSDOS_FSINFO_INO

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

◆ MSDOS_LONGNAME

#define MSDOS_LONGNAME 256 /* maximum name length */

◆ MSDOS_NAME

#define MSDOS_NAME 11 /* maximum name length */

◆ MSDOS_ROOT_INO

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

◆ MSDOS_SLOTS

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

◆ SECTOR_BITS

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

◆ SECTOR_SIZE

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

Classes

Macros