1 #ifndef LINUX_UMSDOS_FS_H 2 #define LINUX_UMSDOS_FS_H 3 4 #define UMSDOS_VERSION 0 5 #define UMSDOS_RELEASE 3 6 7 #ifndef LINUX_FS_H 8 #include <linux/fs.h> 9 #endif 10 11 /* This is the file acting as a directory extension */ 12 #define UMSDOS_EMD_FILE "--linux-.---" 13 #define UMSDOS_EMD_NAMELEN 12 14 #define UMSDOS_PSDROOT_NAME "linux" 15 #define UMSDOS_PSDROOT_LEN 5 16 17 struct umsdos_fake_info { 18 char fname[13]; 19 int len; 20 }; 21 22 #define UMSDOS_MAXNAME 220 23 /* This structure is 256 bytes large, depending on the name, only part */ 24 /* of it is written to disk */ 25 struct umsdos_dirent { 26 unsigned char name_len; /* if == 0, then this entry is not used */ 27 unsigned char flags; /* UMSDOS_xxxx */ 28 unsigned short nlink; /* How many hard links point to this entry */ 29 uid_t uid; /* Owner user id */ 30 gid_t gid; /* Group id */ 31 time_t atime; /* Access time */ 32 time_t mtime; /* Last modification time */ 33 time_t ctime; /* Creation time */ 34 dev_t rdev; /* major and minor number of a device */ 35 /* special file */ 36 umode_t mode; /* Standard UNIX permissions bits + type of */ 37 char spare[12]; /* unused bytes for future extensions */ 38 /* file, see linux/stat.h */ 39 char name[UMSDOS_MAXNAME]; /* Not '\0' terminated */ 40 /* but '\0' padded, so it will allow */ 41 /* for adding news fields in this record */ 42 /* by reducing the size of name[] */ 43 }; 44 #define UMSDOS_HIDDEN 1 /* Never show this entry in directory search */ 45 #define UMSDOS_HLINK 2 /* It is a (pseudo) hard link */ 46 47 /* #Specification: EMD file / record size 48 Entry are 64 bytes wide in the EMD file. It allows for a 30 characters 49 name. If a name is longer, contiguous entries are allocated. So a 50 umsdos_dirent may span multiple records. 51 */ 52 #define UMSDOS_REC_SIZE 64 53 54 /* Translation between MSDOS name and UMSDOS name */ 55 struct umsdos_info{ 56 int msdos_reject; /* Tell if the file name is invalid for MSDOS */ 57 /* See umsdos_parse */ 58 struct umsdos_fake_info fake; 59 struct umsdos_dirent entry; 60 off_t f_pos; /* offset of the entry in the EMD file */ 61 /* or offset where the entry may be store */ 62 /* if it is a new entry */ 63 int recsize; /* Record size needed to store entry */ 64 }; 65 66 /* Definitions for ioctl (number randomly chosen) */ 67 /* The next ioctl commands operate only on the DOS directory */ 68 /* The file umsdos_progs/umsdosio.c contain a string table */ 69 /* based on the order of those definition. Keep it in sync */ 70 #define UMSDOS_READDIR_DOS 1234 /* Do a readdir of the DOS directory */ 71 #define UMSDOS_UNLINK_DOS 1235 /* Erase in the DOS directory only */ 72 #define UMSDOS_RMDIR_DOS 1236 /* rmdir in the DOS directory only */ 73 #define UMSDOS_STAT_DOS 1237 /* Get info about a file */ 74 /* The next ioctl commands operate only on the EMD file */ 75 #define UMSDOS_CREAT_EMD 1238 /* Create a file */ 76 #define UMSDOS_UNLINK_EMD 1239 /* unlink (rmdir) a file */ 77 #define UMSDOS_READDIR_EMD 1240 /* read the EMD file only. */ 78 #define UMSDOS_GETVERSION 1241 /* Get the release number of UMSDOS */ 79 #define UMSDOS_INIT_EMD 1242 /* Create the EMD file if not there */ 80 #define UMSDOS_DOS_SETUP 1243 /* Set the defaults of the MsDOS driver */ 81 82 #include <linux/stat.h> 83 84 struct umsdos_ioctl{ 85 struct dirent dos_dirent; 86 struct umsdos_dirent umsdos_dirent; 87 struct new_stat stat; 88 char version,release; 89 }; 90 91 /* Different macros to access struct umsdos_dirent */ 92 #define EDM_ENTRY_ISUSED(e) ((e)->name_len!=0) 93 94 #ifdef __KERNEL__ 95 96 extern struct inode_operations umsdos_dir_inode_operations; 97 extern struct file_operations umsdos_file_operations; 98 extern struct inode_operations umsdos_file_inode_operations; 99 extern struct inode_operations umsdos_file_inode_operations_no_bmap; 100 extern struct inode_operations umsdos_symlink_inode_operations; 101 102 #include <linux/umsdos_fs.p> 103 104 #endif /* __KERNEL__ */ 105 106 #endif