1/****************************************************************************
2 ****************************************************************************
3 ***
4 ***   This header was automatically generated from a Linux kernel header
5 ***   of the same name, to make information necessary for userspace to
6 ***   call into the kernel available to libc.  It contains only constants,
7 ***   structures, and macros generated from the original header, and thus,
8 ***   contains no copyrightable information.
9 ***
10 ***   To edit the content of this header, modify the corresponding
11 ***   source file (e.g. under external/kernel-headers/original/) then
12 ***   run bionic/libc/kernel/tools/update_all.py
13 ***
14 ***   Any manual change here will be lost the next time this script will
15 ***   be run. You've been warned!
16 ***
17 ****************************************************************************
18 ****************************************************************************/
19#ifndef _UAPI_LINUX_MSDOS_FS_H
20#define _UAPI_LINUX_MSDOS_FS_H
21#include <linux/types.h>
22#include <linux/magic.h>
23#include <asm/byteorder.h>
24#define SECTOR_SIZE 512
25#define SECTOR_BITS 9
26#define MSDOS_DPB (MSDOS_DPS)
27#define MSDOS_DPB_BITS 4
28#define MSDOS_DPS (SECTOR_SIZE / sizeof(struct msdos_dir_entry))
29#define MSDOS_DPS_BITS 4
30#define MSDOS_LONGNAME 256
31#define CF_LE_W(v) le16_to_cpu(v)
32#define CF_LE_L(v) le32_to_cpu(v)
33#define CT_LE_W(v) cpu_to_le16(v)
34#define CT_LE_L(v) cpu_to_le32(v)
35#define MSDOS_ROOT_INO 1
36#define MSDOS_FSINFO_INO 2
37#define MSDOS_DIR_BITS 5
38#define FAT_MAX_DIR_ENTRIES (65536)
39#define FAT_MAX_DIR_SIZE (FAT_MAX_DIR_ENTRIES << MSDOS_DIR_BITS)
40#define ATTR_NONE 0
41#define ATTR_RO 1
42#define ATTR_HIDDEN 2
43#define ATTR_SYS 4
44#define ATTR_VOLUME 8
45#define ATTR_DIR 16
46#define ATTR_ARCH 32
47#define ATTR_UNUSED (ATTR_VOLUME | ATTR_ARCH | ATTR_SYS | ATTR_HIDDEN)
48#define ATTR_EXT (ATTR_RO | ATTR_HIDDEN | ATTR_SYS | ATTR_VOLUME)
49#define CASE_LOWER_BASE 8
50#define CASE_LOWER_EXT 16
51#define DELETED_FLAG 0xe5
52#define IS_FREE(n) (! * (n) || * (n) == DELETED_FLAG)
53#define FAT_LFN_LEN 255
54#define MSDOS_NAME 11
55#define MSDOS_SLOTS 21
56#define MSDOS_DOT ".          "
57#define MSDOS_DOTDOT "..         "
58#define FAT_FIRST_ENT(s,x) ((MSDOS_SB(s)->fat_bits == 32 ? 0x0FFFFF00 : MSDOS_SB(s)->fat_bits == 16 ? 0xFF00 : 0xF00) | (x))
59#define FAT_START_ENT 2
60#define MAX_FAT12 0xFF4
61#define MAX_FAT16 0xFFF4
62#define MAX_FAT32 0x0FFFFFF6
63#define MAX_FAT(s) (MSDOS_SB(s)->fat_bits == 32 ? MAX_FAT32 : MSDOS_SB(s)->fat_bits == 16 ? MAX_FAT16 : MAX_FAT12)
64#define BAD_FAT12 0xFF7
65#define BAD_FAT16 0xFFF7
66#define BAD_FAT32 0x0FFFFFF7
67#define EOF_FAT12 0xFFF
68#define EOF_FAT16 0xFFFF
69#define EOF_FAT32 0x0FFFFFFF
70#define FAT_ENT_FREE (0)
71#define FAT_ENT_BAD (BAD_FAT32)
72#define FAT_ENT_EOF (EOF_FAT32)
73#define FAT_FSINFO_SIG1 0x41615252
74#define FAT_FSINFO_SIG2 0x61417272
75#define IS_FSINFO(x) (le32_to_cpu((x)->signature1) == FAT_FSINFO_SIG1 && le32_to_cpu((x)->signature2) == FAT_FSINFO_SIG2)
76#define FAT_STATE_DIRTY 0x01
77struct __fat_dirent {
78  long d_ino;
79  __kernel_off_t d_off;
80  unsigned short d_reclen;
81  char d_name[256];
82};
83#define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct __fat_dirent[2])
84#define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct __fat_dirent[2])
85#define FAT_IOCTL_GET_ATTRIBUTES _IOR('r', 0x10, __u32)
86#define FAT_IOCTL_SET_ATTRIBUTES _IOW('r', 0x11, __u32)
87#define FAT_IOCTL_GET_VOLUME_ID _IOR('r', 0x13, __u32)
88struct fat_boot_sector {
89  __u8 ignored[3];
90  __u8 system_id[8];
91  __u8 sector_size[2];
92  __u8 sec_per_clus;
93  __le16 reserved;
94  __u8 fats;
95  __u8 dir_entries[2];
96  __u8 sectors[2];
97  __u8 media;
98  __le16 fat_length;
99  __le16 secs_track;
100  __le16 heads;
101  __le32 hidden;
102  __le32 total_sect;
103  union {
104    struct {
105      __u8 drive_number;
106      __u8 state;
107      __u8 signature;
108      __u8 vol_id[4];
109      __u8 vol_label[11];
110      __u8 fs_type[8];
111    } fat16;
112    struct {
113      __le32 length;
114      __le16 flags;
115      __u8 version[2];
116      __le32 root_cluster;
117      __le16 info_sector;
118      __le16 backup_boot;
119      __le16 reserved2[6];
120      __u8 drive_number;
121      __u8 state;
122      __u8 signature;
123      __u8 vol_id[4];
124      __u8 vol_label[11];
125      __u8 fs_type[8];
126    } fat32;
127  };
128};
129struct fat_boot_fsinfo {
130  __le32 signature1;
131  __le32 reserved1[120];
132  __le32 signature2;
133  __le32 free_clusters;
134  __le32 next_cluster;
135  __le32 reserved2[4];
136};
137struct msdos_dir_entry {
138  __u8 name[MSDOS_NAME];
139  __u8 attr;
140  __u8 lcase;
141  __u8 ctime_cs;
142  __le16 ctime;
143  __le16 cdate;
144  __le16 adate;
145  __le16 starthi;
146  __le16 time, date, start;
147  __le32 size;
148};
149struct msdos_dir_slot {
150  __u8 id;
151  __u8 name0_4[10];
152  __u8 attr;
153  __u8 reserved;
154  __u8 alias_checksum;
155  __u8 name5_10[12];
156  __le16 start;
157  __u8 name11_12[4];
158};
159#endif
160