ReactOS 0.4.15-dev-7931-gfd331f1
fsck.fat.h
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1/* fsck.fat.h - Common data structures and global variables
2
3 Copyright (C) 1993 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
4 Copyright (C) 1998 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
5 Copyright (C) 2008-2014 Daniel Baumann <mail@daniel-baumann.ch>
6 Copyright (C) 2015 Andreas Bombe <aeb@debian.org>
8 This program is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
21 The complete text of the GNU General Public License
22 can be found in /usr/share/common-licenses/GPL-3 file.
23*/
24
25/* FAT32, VFAT, Atari format support, and various fixes additions May 1998
26 * by Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de> */
27
28#ifndef _DOSFSCK_H
29#define _DOSFSCK_H
31#ifndef __REACTOS__
32#include <sys/types.h>
33#include <fcntl.h>
34#include <stddef.h>
35#endif
36#include <stdint.h>
37
38#ifdef __REACTOS__
39#ifdef _WIN32
40
41typedef unsigned int __u32;
42typedef unsigned __int64 __u64;
43
44#define le16toh(v) (v)
45#define le32toh(v) (v)
46#define htole16(v) (v)
47#define htole32(v) (v)
48
49#endif
50
51#ifdef _M_IX86
52#include "byteorder.h"
53#endif
54
55#if __BYTE_ORDER == __BIG_ENDIAN
56#include "byteswap.h"
57#else
58#define le16toh(v) (v)
59#define le32toh(v) (v)
60#define htole16(v) (v)
61#define htole32(v) (v)
62#endif /* __BIG_ENDIAN */
63
64#endif
65
66#ifndef __REACTOS__
67#include "endian_compat.h"
68#else
69#ifndef offsetof
70#define offsetof(t,e) ((int)&(((t *)0)->e))
71#endif
72
73#include "rosglue.h"
74#endif
75
76#include "msdos_fs.h"
77
78#define VFAT_LN_ATTR (ATTR_RO | ATTR_HIDDEN | ATTR_SYS | ATTR_VOLUME)
79
80#define FAT_STATE_DIRTY 0x01
81
82#ifdef __REACTOS__
83#include <pshpack1.h>
84#endif
85
86/* ++roman: Use own definition of boot sector structure -- the kernel headers'
87 * name for it is msdos_boot_sector in 2.0 and fat_boot_sector in 2.1 ... */
89 uint8_t ignored[3]; /* Boot strap short or near jump */
90 uint8_t system_id[8]; /* Name - can be used to special case
91 partition manager volumes */
92 uint8_t sector_size[2]; /* bytes per logical sector */
93 uint8_t cluster_size; /* sectors/cluster */
94 uint16_t reserved; /* reserved sectors */
95 uint8_t fats; /* number of FATs */
96 uint8_t dir_entries[2]; /* root directory entries */
97 uint8_t sectors[2]; /* number of sectors */
98 uint8_t media; /* media code (unused) */
99 uint16_t fat_length; /* sectors/FAT */
100 uint16_t secs_track; /* sectors per track */
101 uint16_t heads; /* number of heads */
102 uint32_t hidden; /* hidden sectors (unused) */
103 uint32_t total_sect; /* number of sectors (if sectors == 0) */
104
105 /* The following fields are only used by FAT32 */
106 uint32_t fat32_length; /* sectors/FAT */
107 uint16_t flags; /* bit 8: fat mirroring, low 4: active fat */
108 uint8_t version[2]; /* major, minor filesystem version */
109 uint32_t root_cluster; /* first cluster in root directory */
110 uint16_t info_sector; /* filesystem info sector */
111 uint16_t backup_boot; /* backup boot sector */
112 uint8_t reserved2[12]; /* Unused */
113
114 uint8_t drive_number; /* Logical Drive Number */
115 uint8_t reserved3; /* Unused */
116
117 uint8_t extended_sig; /* Extended Signature (0x29) */
118 uint32_t serial; /* Serial number */
119 uint8_t label[11]; /* FS label */
120 uint8_t fs_type[8]; /* FS Type */
121
122 /* fill up to 512 bytes */
125
127 uint8_t ignored[3]; /* Boot strap short or near jump */
128 uint8_t system_id[8]; /* Name - can be used to special case
129 partition manager volumes */
130 uint8_t sector_size[2]; /* bytes per logical sector */
131 uint8_t cluster_size; /* sectors/cluster */
132 uint16_t reserved; /* reserved sectors */
133 uint8_t fats; /* number of FATs */
134 uint8_t dir_entries[2]; /* root directory entries */
135 uint8_t sectors[2]; /* number of sectors */
136 uint8_t media; /* media code (unused) */
137 uint16_t fat_length; /* sectors/FAT */
138 uint16_t secs_track; /* sectors per track */
139 uint16_t heads; /* number of heads */
140 uint32_t hidden; /* hidden sectors (unused) */
141 uint32_t total_sect; /* number of sectors (if sectors == 0) */
142
143 uint8_t drive_number; /* Logical Drive Number */
144 uint8_t reserved2; /* Unused */
145
146 uint8_t extended_sig; /* Extended Signature (0x29) */
147 uint32_t serial; /* Serial number */
148 uint8_t label[11]; /* FS label */
149 uint8_t fs_type[8]; /* FS Type */
150
151 /* fill up to 512 bytes */
154
156 uint32_t magic; /* Magic for info sector ('RRaA') */
158 uint32_t signature; /* 0x61417272 ('rrAa') */
159 uint32_t free_clusters; /* Free cluster count. -1 if unknown */
160 uint32_t next_cluster; /* Most recently allocated cluster. */
164
165typedef struct {
166 uint8_t name[MSDOS_NAME]; /* name including extension */
167 uint8_t attr; /* attribute bits */
168 uint8_t lcase; /* Case for base and extension */
169 uint8_t ctime_ms; /* Creation time, milliseconds */
170 uint16_t ctime; /* Creation time */
171 uint16_t cdate; /* Creation date */
172 uint16_t adate; /* Last access date */
173 uint16_t starthi; /* High 16 bits of cluster in FAT32 */
174 uint16_t time, date, start; /* time, date and first cluster */
175 uint32_t size; /* file size (in bytes) */
176} __attribute__ ((packed)) DIR_ENT;
177
178#ifdef __REACTOS__
179#include <poppack.h>
180#endif
181
182typedef struct _dos_file {
183 DIR_ENT dir_ent;
184 char *lfn;
187 struct _dos_file *parent; /* parent directory */
188 struct _dos_file *next; /* next entry */
189 struct _dos_file *first; /* first entry (directory only) */
191
192typedef struct {
195} FAT_ENTRY;
196
197typedef struct {
198 int nfats;
200 off_t fat_size; /* unit is bytes */
201 unsigned int fat_bits; /* size of a FAT entry */
202 unsigned int eff_fat_bits; /* # of used bits in a FAT entry */
203 uint32_t root_cluster; /* 0 for old-style root dir */
205 unsigned int root_entries;
207 unsigned int cluster_size;
208 uint32_t data_clusters; /* not including two reserved cluster numbers */
209 off_t fsinfo_start; /* 0 if not present */
211 off_t backupboot_start; /* 0 if not present */
212 unsigned char *fat;
214 char *label;
215} DOS_FS;
216
217#ifndef __REACTOS__
219extern int atari_format;
220extern unsigned n_files;
221extern void *mem_queue;
222#endif
223
224/* value to use as end-of-file marker */
225#define FAT_EOF(fs) ((atari_format ? 0xfff : 0xff8) | FAT_EXTD(fs))
226#define FAT_IS_EOF(fs,v) ((uint32_t)(v) >= (0xff8|FAT_EXTD(fs)))
227/* value to mark bad clusters */
228#define FAT_BAD(fs) (0xff7 | FAT_EXTD(fs))
229/* range of values used for bad clusters */
230#define FAT_MIN_BAD(fs) ((atari_format ? 0xff0 : 0xff7) | FAT_EXTD(fs))
231#define FAT_MAX_BAD(fs) ((atari_format ? 0xff7 : 0xff7) | FAT_EXTD(fs))
232#define FAT_IS_BAD(fs,v) ((v) >= FAT_MIN_BAD(fs) && (v) <= FAT_MAX_BAD(fs))
233
234/* return -16 as a number with fs->fat_bits bits */
235#define FAT_EXTD(fs) (((1 << fs->eff_fat_bits)-1) & ~0xf)
236
237/* marker for files with no 8.3 name */
238#define FAT_NO_83NAME 32
239
240#endif
unsigned short int uint16_t
Definition: acefiex.h:54
#define __int64
Definition: basetyps.h:16
UINT32 uint32_t
Definition: types.h:75
__kernel_off_t off_t
Definition: linux.h:201
struct _dos_file DOS_FILE
int verbose
Definition: fsck.fat.h:218
int test
Definition: fsck.fat.h:218
int rw
Definition: fsck.fat.h:218
int list
Definition: fsck.fat.h:218
void * mem_queue
struct info_sector __attribute__
int atari_format
int write_immed
Definition: fsck.fat.h:218
unsigned n_files
int interactive
Definition: main.c:63
GLuint start
Definition: gl.h:1545
GLuint GLenum GLsizei GLsizei GLint GLint GLboolean packed
Definition: glext.h:9271
__u16 time
Definition: mkdosfs.c:8
#define MSDOS_NAME
Definition: msdos_fs.h:46
BYTE uint8_t
Definition: msvideo1.c:66
#define __u64
Definition: types.h:17
#define __u32
Definition: types.h:15
unsigned int fat_bits
Definition: fsck.fat.h:201
unsigned int cluster_size
Definition: fsck.fat.h:207
off_t backupboot_start
Definition: fsck.fat.h:211
char * label
Definition: fsck.fat.h:214
off_t fsinfo_start
Definition: fsck.fat.h:209
int nfats
Definition: fsck.fat.h:198
off_t fat_size
Definition: fsck.fat.h:200
unsigned int eff_fat_bits
Definition: fsck.fat.h:202
DOS_FILE ** cluster_owner
Definition: fsck.fat.h:213
off_t fat_start
Definition: fsck.fat.h:199
uint32_t data_clusters
Definition: fsck.fat.h:208
unsigned int root_entries
Definition: fsck.fat.h:205
uint32_t root_cluster
Definition: fsck.fat.h:203
unsigned char * fat
Definition: fsck.fat.h:212
off_t root_start
Definition: fsck.fat.h:204
off_t data_start
Definition: fsck.fat.h:206
long free_clusters
Definition: fsck.fat.h:210
Definition: fsck.fat.h:192
uint32_t value
Definition: fsck.fat.h:193
uint32_t reserved
Definition: fsck.fat.h:194
uint32_t size
Definition: fsck.fat.h:175
uint16_t date
Definition: fsck.fat.h:174
uint8_t ctime_ms
Definition: fsck.fat.h:169
uint8_t attr
Definition: fsck.fat.h:167
uint16_t ctime
Definition: fsck.fat.h:170
uint16_t starthi
Definition: fsck.fat.h:173
uint8_t lcase
Definition: fsck.fat.h:168
uint16_t adate
Definition: fsck.fat.h:172
uint16_t cdate
Definition: fsck.fat.h:171
struct _dos_file * next
Definition: fsck.fat.h:188
struct _dos_file * parent
Definition: fsck.fat.h:187
DIR_ENT dir_ent
Definition: fsck.fat.h:183
off_t offset
Definition: fsck.fat.h:185
off_t lfn_offset
Definition: fsck.fat.h:186
char * lfn
Definition: fsck.fat.h:184
struct _dos_file * first
Definition: fsck.fat.h:189
uint8_t system_id[8]
Definition: fsck.fat.h:128
uint8_t drive_number
Definition: fsck.fat.h:143
uint8_t junk[450]
Definition: fsck.fat.h:152
uint16_t fat_length
Definition: fsck.fat.h:137
uint8_t fats
Definition: fsck.fat.h:133
uint8_t sector_size[2]
Definition: fsck.fat.h:130
uint8_t sectors[2]
Definition: fsck.fat.h:135
uint8_t media
Definition: fsck.fat.h:136
uint32_t hidden
Definition: fsck.fat.h:140
uint32_t total_sect
Definition: fsck.fat.h:141
uint8_t fs_type[8]
Definition: fsck.fat.h:149
uint8_t extended_sig
Definition: fsck.fat.h:146
uint8_t ignored[3]
Definition: fsck.fat.h:127
uint16_t heads
Definition: fsck.fat.h:139
uint8_t cluster_size
Definition: fsck.fat.h:131
uint16_t reserved
Definition: fsck.fat.h:132
uint8_t dir_entries[2]
Definition: fsck.fat.h:134
uint16_t secs_track
Definition: fsck.fat.h:138
uint8_t label[11]
Definition: fsck.fat.h:148
uint32_t serial
Definition: fsck.fat.h:147
uint8_t reserved2
Definition: fsck.fat.h:144
uint16_t backup_boot
Definition: fsck.fat.h:111
uint8_t fs_type[8]
Definition: fsck.fat.h:120
uint8_t reserved2[12]
Definition: fsck.fat.h:112
uint8_t sector_size[2]
Definition: fsck.fat.h:92
uint32_t serial
Definition: fsck.fat.h:118
uint8_t dir_entries[2]
Definition: fsck.fat.h:96
uint32_t fat32_length
Definition: fsck.fat.h:106
uint32_t total_sect
Definition: fsck.fat.h:103
uint16_t secs_track
Definition: fsck.fat.h:100
uint16_t info_sector
Definition: fsck.fat.h:110
uint8_t extended_sig
Definition: fsck.fat.h:117
uint8_t reserved3
Definition: fsck.fat.h:115
uint16_t reserved
Definition: fsck.fat.h:94
uint8_t version[2]
Definition: fsck.fat.h:108
uint8_t media
Definition: fsck.fat.h:98
uint8_t fats
Definition: fsck.fat.h:95
uint8_t drive_number
Definition: fsck.fat.h:114
uint16_t fat_length
Definition: fsck.fat.h:99
uint8_t label[11]
Definition: fsck.fat.h:119
uint8_t cluster_size
Definition: fsck.fat.h:93
uint32_t hidden
Definition: fsck.fat.h:102
uint8_t ignored[3]
Definition: fsck.fat.h:89
uint8_t junk[422]
Definition: fsck.fat.h:123
uint16_t flags
Definition: fsck.fat.h:107
uint8_t sectors[2]
Definition: fsck.fat.h:97
uint8_t system_id[8]
Definition: fsck.fat.h:90
uint16_t heads
Definition: fsck.fat.h:101
uint32_t root_cluster
Definition: fsck.fat.h:109
uint32_t boot_sign
Definition: fsck.fat.h:162
uint32_t magic
Definition: fsck.fat.h:156
uint32_t signature
Definition: fsck.fat.h:158
uint8_t reserved1[480]
Definition: fsck.fat.h:157
uint32_t next_cluster
Definition: fsck.fat.h:160
uint8_t reserved2[12]
Definition: fsck.fat.h:161
uint32_t free_clusters
Definition: fsck.fat.h:159
Definition: name.c:39