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 9 struct 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 32 struct 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