1#ifndef _MSDOS_FS_SB
2#define _MSDOS_FS_SB
3#include<linux/fat_cvf.h>
4
5/*
6 * MS-DOS file system in-core superblock data
7 */
8
9struct fat_mount_options {
10	uid_t fs_uid;
11	gid_t fs_gid;
12	unsigned short fs_umask;
13	unsigned short codepage;  /* Codepage for shortname conversions */
14	char *iocharset;          /* Charset used for filename input/display */
15	unsigned short shortname; /* flags for shortname display/create rule */
16	unsigned char name_check; /* r = relaxed, n = normal, s = strict */
17	unsigned char conversion; /* b = binary, t = text, a = auto */
18	unsigned quiet:1,         /* set = fake successful chmods and chowns */
19		 showexec:1,      /* set = only set x bit for com/exe/bat */
20		 sys_immutable:1, /* set = system files are immutable */
21		 dotsOK:1,        /* set = hidden and system files are named '.filename' */
22		 isvfat:1,        /* 0=no vfat long filename support, 1=vfat support */
23		 utf8:1,	  /* Use of UTF8 character set (Default) */
24		 unicode_xlate:1, /* create escape sequences for unhandled Unicode */
25		 posixfs:1,       /* Allow names like makefile and Makefile to coexist */
26		 numtail:1,       /* Does first alias have a numeric '~1' type tail? */
27		 atari:1,         /* Use Atari GEMDOS variation of MS-DOS fs */
28		 fat32:1,	  /* Is this a FAT32 partition? */
29		 nocase:1;	  /* Does this need case conversion? 0=need case conversion*/
30};
31
32struct msdos_sb_info {
33	unsigned short cluster_size; /* sectors/cluster */
34	unsigned short cluster_bits; /* sectors/cluster */
35	unsigned char fats,fat_bits; /* number of FATs, FAT bits (12 or 16) */
36	unsigned short fat_start;
37	unsigned long fat_length;    /* FAT start & length (sec.) */
38	unsigned long dir_start;
39	unsigned short dir_entries;  /* root dir start & entries */
40	unsigned long data_start;    /* first data sector */
41	unsigned long clusters;      /* number of clusters */
42	unsigned long root_cluster;  /* first cluster of the root directory */
43	unsigned long fsinfo_sector; /* FAT32 fsinfo offset from start of disk */
44	struct semaphore fat_lock;
45	int prev_free;               /* previously returned free cluster number */
46	int free_clusters;           /* -1 if undefined */
47	struct fat_mount_options options;
48	struct nls_table *nls_disk;  /* Codepage used on disk */
49	struct nls_table *nls_io;    /* Charset used for input and display */
50	struct cvf_format* cvf_format;
51	void *dir_ops;		     /* Opaque; default directory operations */
52	void *private_data;
53	int dir_per_block;	     /* dir entries per block */
54	int dir_per_block_bits;	     /* log2(dir_per_block) */
55};
56
57#endif
58