1 /* dosfsck.h - Common data structures and global variables */
3 /* Written 1993 by Werner Almesberger */
5 /* FAT32, VFAT, Atari format support, and various fixes additions May 1998
6 * by Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de> */
16 typedef unsigned char __u8
;
17 typedef unsigned short __u16
;
18 typedef unsigned int __u32
;
19 typedef unsigned __int64 __u64
;
20 typedef unsigned short __le16
;
21 typedef unsigned int __le32
;
22 typedef __int64 loff_t
;
25 #define CF_LE_W(v) (v)
26 #define CF_LE_L(v) (v)
27 #define CT_LE_W(v) (v)
28 #define CT_LE_L(v) (v)
32 #define _LINUX_STAT_H /* hack to avoid inclusion of <linux/stat.h> */
33 #define _LINUX_STRING_H_ /* hack to avoid inclusion of <linux/string.h>*/
34 #define _LINUX_FS_H /* hack to avoid inclusion of <linux/fs.h> */
36 //#include <linux/version.h>
38 # include "byteorder.h"
49 #if __BYTE_ORDER == __BIG_ENDIAN
52 #define CF_LE_W(v) bswap_16(v)
53 #define CF_LE_L(v) bswap_32(v)
54 #define CT_LE_W(v) CF_LE_W(v)
55 #define CT_LE_L(v) CF_LE_L(v)
58 #define CF_LE_W(v) (v)
59 #define CF_LE_L(v) (v)
60 #define CT_LE_W(v) (v)
61 #define CT_LE_L(v) (v)
62 #endif /* __BIG_ENDIAN */
64 #define VFAT_LN_ATTR (ATTR_RO | ATTR_HIDDEN | ATTR_SYS | ATTR_VOLUME)
68 /* ++roman: Use own definition of boot sector structure -- the kernel headers'
69 * name for it is msdos_boot_sector in 2.0 and fat_boot_sector in 2.1 ... */
71 __u8 ignored
[3]; /* Boot strap short or near jump */
72 __u8 system_id
[8]; /* Name - can be used to special case
73 partition manager volumes */
74 __u8 sector_size
[2]; /* bytes per logical sector */
75 __u8 cluster_size
; /* sectors/cluster */
76 __u16 reserved
; /* reserved sectors */
77 __u8 fats
; /* number of FATs */
78 __u8 dir_entries
[2]; /* root directory entries */
79 __u8 sectors
[2]; /* number of sectors */
80 __u8 media
; /* media code (unused) */
81 __u16 fat_length
; /* sectors/FAT */
82 __u16 secs_track
; /* sectors per track */
83 __u16 heads
; /* number of heads */
84 __u32 hidden
; /* hidden sectors (unused) */
85 __u32 total_sect
; /* number of sectors (if sectors == 0) */
87 /* The following fields are only used by FAT32 */
88 __u32 fat32_length
; /* sectors/FAT */
89 __u16 flags
; /* bit 8: fat mirroring, low 4: active fat */
90 __u8 version
[2]; /* major, minor filesystem version */
91 __u32 root_cluster
; /* first cluster in root directory */
92 __u16 info_sector
; /* filesystem info sector */
93 __u16 backup_boot
; /* backup boot sector */
94 __u16 reserved2
[6]; /* Unused */
96 /* fill up to 512 bytes */
103 __u32 magic
; /* Magic for info sector ('RRaA') */
105 __u32 reserved1
; /* Nothing as far as I can tell */
106 __u32 signature
; /* 0x61417272 ('rrAa') */
107 __u32 free_clusters
; /* Free cluster count. -1 if unknown */
108 __u32 next_cluster
; /* Most recently allocated cluster. */
115 __u8 name
[8],ext
[3]; /* name and extension */
116 __u8 attr
; /* attribute bits */
117 __u8 lcase
; /* Case for base and extension */
118 __u8 ctime_ms
; /* Creation time, milliseconds */
119 __u16 ctime
; /* Creation time */
120 __u16 cdate
; /* Creation date */
121 __u16 adate
; /* Last access date */
122 __u16 starthi
; /* High 16 bits of cluster in FAT32 */
123 __u16 time
,date
,start
;/* time, date and first cluster */
124 __u32 size
; /* file size (in bytes) */
127 typedef struct _dos_file
{
131 struct _dos_file
*parent
; /* parent directory */
132 struct _dos_file
*next
; /* next entry */
133 struct _dos_file
*first
; /* first entry (directory only) */
138 unsigned long reserved
;
140 int prev
; /* number of previous clusters */
146 unsigned int fat_size
; /* unit is bytes */
147 unsigned int fat_bits
; /* size of a FAT entry */
148 unsigned int eff_fat_bits
; /* # of used bits in a FAT entry */
149 unsigned long root_cluster
; /* 0 for old-style root dir */
151 unsigned int root_entries
;
153 unsigned int cluster_size
;
154 unsigned long clusters
;
155 loff_t fsinfo_start
; /* 0 if not present */
157 loff_t backupboot_start
; /* 0 if not present */
162 #define offsetof(t,e) ((int)&(((t *)0)->e))
165 extern int interactive
,list
,verbose
,test
,write_immed
;
166 extern int atari_format
;
167 extern unsigned n_files
;
168 extern void *mem_queue
;
170 /* value to use as end-of-file marker */
171 #define FAT_EOF(fs) ((atari_format ? 0xfff : 0xff8) | FAT_EXTD(fs))
172 #define FAT_IS_EOF(fs,v) ((unsigned long)(v) >= (0xff8|FAT_EXTD(fs)))
173 /* value to mark bad clusters */
174 #define FAT_BAD(fs) (0xff7 | FAT_EXTD(fs))
175 /* range of values used for bad clusters */
176 #define FAT_MIN_BAD(fs) ((atari_format ? 0xff0 : 0xff7) | FAT_EXTD(fs))
177 #define FAT_MAX_BAD(fs) ((atari_format ? 0xff7 : 0xff7) | FAT_EXTD(fs))
178 #define FAT_IS_BAD(fs,v) ((v) >= FAT_MIN_BAD(fs) && (v) <= FAT_MAX_BAD(fs))
180 /* return -16 as a number with fs->fat_bits bits */
181 #define FAT_EXTD(fs) (((1 << fs->eff_fat_bits)-1) & ~0xf)
185 /* Local Variables: */