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-/* dosfsck.h - Common data structures and global variables
-
- Copyright (C) 1993 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
- Copyright (C) 1998 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
-
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-
- On Debian systems, the complete text of the GNU General Public License
- can be found in /usr/share/common-licenses/GPL-3 file.
-*/
-
-/* FAT32, VFAT, Atari format support, and various fixes additions May 1998
- * by Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de> */
-
-
-#ifndef _DOSFSCK_H
-#define _DOSFSCK_H
-
-#include <sys/types.h>
-#define _LINUX_STAT_H /* hack to avoid inclusion of <linux/stat.h> */
-#define _LINUX_STRING_H_ /* hack to avoid inclusion of <linux/string.h>*/
-#define _LINUX_FS_H /* hack to avoid inclusion of <linux/fs.h> */
-
-# include <asm/types.h>
-# include <asm/byteorder.h>
-
-#include <linux/msdos_fs.h>
-
-#undef CF_LE_W
-#undef CF_LE_L
-#undef CT_LE_W
-#undef CT_LE_L
-
-#if defined __arm__
- #undef __BYTE_ORDER
- #define __BYTE_ORDER __LITTLE_ENDIAN
-#endif
-
-#if __BYTE_ORDER == __BIG_ENDIAN
-#include <byteswap.h>
-#define CF_LE_W(v) bswap_16(v)
-#define CF_LE_L(v) bswap_32(v)
-#define CT_LE_W(v) CF_LE_W(v)
-#define CT_LE_L(v) CF_LE_L(v)
-#else
-#define CF_LE_W(v) (v)
-#define CF_LE_L(v) (v)
-#define CT_LE_W(v) (v)
-#define CT_LE_L(v) (v)
-#endif /* __BIG_ENDIAN */
-
-#define VFAT_LN_ATTR (ATTR_RO | ATTR_HIDDEN | ATTR_SYS | ATTR_VOLUME)
-
-/* ++roman: Use own definition of boot sector structure -- the kernel headers'
- * name for it is msdos_boot_sector in 2.0 and fat_boot_sector in 2.1 ... */
-struct boot_sector {
- __u8 ignored[3]; /* Boot strap short or near jump */
- __u8 system_id[8]; /* Name - can be used to special case
- partition manager volumes */
- __u8 sector_size[2]; /* bytes per logical sector */
- __u8 cluster_size; /* sectors/cluster */
- __u16 reserved; /* reserved sectors */
- __u8 fats; /* number of FATs */
- __u8 dir_entries[2]; /* root directory entries */
- __u8 sectors[2]; /* number of sectors */
- __u8 media; /* media code (unused) */
- __u16 fat_length; /* sectors/FAT */
- __u16 secs_track; /* sectors per track */
- __u16 heads; /* number of heads */
- __u32 hidden; /* hidden sectors (unused) */
- __u32 total_sect; /* number of sectors (if sectors == 0) */
-
- /* The following fields are only used by FAT32 */
- __u32 fat32_length; /* sectors/FAT */
- __u16 flags; /* bit 8: fat mirroring, low 4: active fat */
- __u8 version[2]; /* major, minor filesystem version */
- __u32 root_cluster; /* first cluster in root directory */
- __u16 info_sector; /* filesystem info sector */
- __u16 backup_boot; /* backup boot sector */
- __u8 reserved2[12]; /* Unused */
-
- __u8 drive_number; /* Logical Drive Number */
- __u8 reserved3; /* Unused */
-
- __u8 extended_sig; /* Extended Signature (0x29) */
- __u32 serial; /* Serial number */
- __u8 label[11]; /* FS label */
- __u8 fs_type[8]; /* FS Type */
-
- /* fill up to 512 bytes */
- __u8 junk[422];
-} __attribute__ ((packed));
-
-struct boot_sector_16 {
- __u8 ignored[3]; /* Boot strap short or near jump */
- __u8 system_id[8]; /* Name - can be used to special case
- partition manager volumes */
- __u8 sector_size[2]; /* bytes per logical sector */
- __u8 cluster_size; /* sectors/cluster */
- __u16 reserved; /* reserved sectors */
- __u8 fats; /* number of FATs */
- __u8 dir_entries[2]; /* root directory entries */
- __u8 sectors[2]; /* number of sectors */
- __u8 media; /* media code (unused) */
- __u16 fat_length; /* sectors/FAT */
- __u16 secs_track; /* sectors per track */
- __u16 heads; /* number of heads */
- __u32 hidden; /* hidden sectors (unused) */
- __u32 total_sect; /* number of sectors (if sectors == 0) */
-
- __u8 drive_number; /* Logical Drive Number */
- __u8 reserved2; /* Unused */
-
- __u8 extended_sig; /* Extended Signature (0x29) */
- __u32 serial; /* Serial number */
- __u8 label[11]; /* FS label */
- __u8 fs_type[8]; /* FS Type */
-
- /* fill up to 512 bytes */
- __u8 junk[450];
-} __attribute__ ((packed));
-
-struct info_sector {
- __u32 magic; /* Magic for info sector ('RRaA') */
- __u8 junk[0x1dc];
- __u32 reserved1; /* Nothing as far as I can tell */
- __u32 signature; /* 0x61417272 ('rrAa') */
- __u32 free_clusters; /* Free cluster count. -1 if unknown */
- __u32 next_cluster; /* Most recently allocated cluster. */
- __u32 reserved2[3];
- __u16 reserved3;
- __u16 boot_sign;
-};
-
-typedef struct {
- __u8 name[8],ext[3]; /* name and extension */
- __u8 attr; /* attribute bits */
- __u8 lcase; /* Case for base and extension */
- __u8 ctime_ms; /* Creation time, milliseconds */
- __u16 ctime; /* Creation time */
- __u16 cdate; /* Creation date */
- __u16 adate; /* Last access date */
- __u16 starthi; /* High 16 bits of cluster in FAT32 */
- __u16 time,date,start;/* time, date and first cluster */
- __u32 size; /* file size (in bytes) */
-} DIR_ENT;
-
-typedef struct _dos_file {
- DIR_ENT dir_ent;
- char *lfn;
- loff_t offset;
- struct _dos_file *parent; /* parent directory */
- struct _dos_file *next; /* next entry */
- struct _dos_file *first; /* first entry (directory only) */
-} DOS_FILE;
-
-typedef struct {
- unsigned long value;
- unsigned long reserved;
- DOS_FILE *owner;
- int prev; /* number of previous clusters */
-} FAT_ENTRY;
-
-typedef struct {
- int nfats;
- loff_t fat_start;
- unsigned int fat_size; /* unit is bytes */
- unsigned int fat_bits; /* size of a FAT entry */
- unsigned int eff_fat_bits; /* # of used bits in a FAT entry */
- unsigned long root_cluster; /* 0 for old-style root dir */
- loff_t root_start;
- unsigned int root_entries;
- loff_t data_start;
- unsigned int cluster_size;
- unsigned long clusters;
- loff_t fsinfo_start; /* 0 if not present */
- long free_clusters;
- loff_t backupboot_start; /* 0 if not present */
- FAT_ENTRY *fat;
- char *label;
-} DOS_FS;
-
-#ifndef offsetof
-#define offsetof(t,e) ((int)&(((t *)0)->e))
-#endif
-
-extern int interactive,list,verbose,test,write_immed;
-extern int atari_format;
-extern unsigned n_files;
-extern void *mem_queue;
-
-/* value to use as end-of-file marker */
-#define FAT_EOF(fs) ((atari_format ? 0xfff : 0xff8) | FAT_EXTD(fs))
-#define FAT_IS_EOF(fs,v) ((unsigned long)(v) >= (0xff8|FAT_EXTD(fs)))
-/* value to mark bad clusters */
-#define FAT_BAD(fs) (0xff7 | FAT_EXTD(fs))
-/* range of values used for bad clusters */
-#define FAT_MIN_BAD(fs) ((atari_format ? 0xff0 : 0xff7) | FAT_EXTD(fs))
-#define FAT_MAX_BAD(fs) ((atari_format ? 0xff7 : 0xff7) | FAT_EXTD(fs))
-#define FAT_IS_BAD(fs,v) ((v) >= FAT_MIN_BAD(fs) && (v) <= FAT_MAX_BAD(fs))
-
-/* return -16 as a number with fs->fat_bits bits */
-#define FAT_EXTD(fs) (((1 << fs->eff_fat_bits)-1) & ~0xf)
-
-#endif
-
-/* Local Variables: */
-/* tab-width: 8 */
-/* End: */
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