diff options
Diffstat (limited to 'pfinet/linux-src/include/linux/umsdos_fs.h')
| -rw-r--r-- | pfinet/linux-src/include/linux/umsdos_fs.h | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/pfinet/linux-src/include/linux/umsdos_fs.h b/pfinet/linux-src/include/linux/umsdos_fs.h new file mode 100644 index 00000000..14bdb829 --- /dev/null +++ b/pfinet/linux-src/include/linux/umsdos_fs.h @@ -0,0 +1,188 @@ +#ifndef LINUX_UMSDOS_FS_H +#define LINUX_UMSDOS_FS_H + + +#define UMS_DEBUG 1 /* define for check_* functions */ +/*#define UMSDOS_DEBUG 1*/ +#define UMSDOS_PARANOIA 1 + +#define UMSDOS_VERSION 0 +#define UMSDOS_RELEASE 4 + +#define UMSDOS_ROOT_INO 1 + +/* This is the file acting as a directory extension */ +#define UMSDOS_EMD_FILE "--linux-.---" +#define UMSDOS_EMD_NAMELEN 12 +#define UMSDOS_PSDROOT_NAME "linux" +#define UMSDOS_PSDROOT_LEN 5 + +#ifndef _LINUX_TYPES_H +#include <linux/types.h> +#endif +#ifndef _LINUX_LIMITS_H +#include <linux/limits.h> +#endif +#ifndef _LINUX_DIRENT_H +#include <linux/dirent.h> +#endif +#ifndef _LINUX_IOCTL_H +#include <linux/ioctl.h> +#endif + + +#ifdef __KERNEL__ +/* #Specification: convention / PRINTK Printk and printk + * Here is the convention for the use of printk inside fs/umsdos + * + * printk carry important message (error or status). + * Printk is for debugging (it is a macro defined at the beginning of + * most source. + * PRINTK is a nulled Printk macro. + * + * This convention makes the source easier to read, and Printk easier + * to shut off. + */ +# define PRINTK(x) +# ifdef UMSDOS_DEBUG +# define Printk(x) printk x +# else +# define Printk(x) +# endif +#endif + + +struct umsdos_fake_info { + char fname[13]; + int len; +}; + +#define UMSDOS_MAXNAME 220 +/* This structure is 256 bytes large, depending on the name, only part */ +/* of it is written to disk */ +/* nice though it would be, I can't change this and preserve backward compatibility */ +struct umsdos_dirent { + unsigned char name_len; /* if == 0, then this entry is not used */ + unsigned char flags; /* UMSDOS_xxxx */ + unsigned short nlink; /* How many hard links point to this entry */ + uid_t uid; /* Owner user id */ + gid_t gid; /* Group id */ + time_t atime; /* Access time */ + time_t mtime; /* Last modification time */ + time_t ctime; /* Creation time */ + dev_t rdev; /* major and minor number of a device */ + /* special file */ + umode_t mode; /* Standard UNIX permissions bits + type of */ + char spare[12]; /* unused bytes for future extensions */ + /* file, see linux/stat.h */ + char name[UMSDOS_MAXNAME]; /* Not '\0' terminated */ + /* but '\0' padded, so it will allow */ + /* for adding news fields in this record */ + /* by reducing the size of name[] */ +}; + +#define UMSDOS_HIDDEN 1 /* Never show this entry in directory search */ +#define UMSDOS_HLINK 2 /* It is a (pseudo) hard link */ + +/* #Specification: EMD file / record size + * Entry are 64 bytes wide in the EMD file. It allows for a 30 characters + * name. If a name is longer, contiguous entries are allocated. So a + * umsdos_dirent may span multiple records. + */ + +#define UMSDOS_REC_SIZE 64 + +/* Translation between MSDOS name and UMSDOS name */ + +struct umsdos_info { + int msdos_reject; /* Tell if the file name is invalid for MSDOS */ + /* See umsdos_parse */ + struct umsdos_fake_info fake; + struct umsdos_dirent entry; + off_t f_pos; /* offset of the entry in the EMD file + * or offset where the entry may be store + * if it is a new entry + */ + int recsize; /* Record size needed to store entry */ +}; + +/* Definitions for ioctl (number randomly chosen) + * The next ioctl commands operate only on the DOS directory + * The file umsdos_progs/umsdosio.c contain a string table + * based on the order of those definition. Keep it in sync + */ +#define UMSDOS_READDIR_DOS _IO(0x04,210) /* Do a readdir of the DOS directory */ +#define UMSDOS_UNLINK_DOS _IO(0x04,211) /* Erase in the DOS directory only */ +#define UMSDOS_RMDIR_DOS _IO(0x04,212) /* rmdir in the DOS directory only */ +#define UMSDOS_STAT_DOS _IO(0x04,213) /* Get info about a file */ + +/* The next ioctl commands operate only on the EMD file */ +#define UMSDOS_CREAT_EMD _IO(0x04,214) /* Create a file */ +#define UMSDOS_UNLINK_EMD _IO(0x04,215) /* unlink (rmdir) a file */ +#define UMSDOS_READDIR_EMD _IO(0x04,216) /* read the EMD file only. */ +#define UMSDOS_GETVERSION _IO(0x04,217) /* Get the release number of UMSDOS */ +#define UMSDOS_INIT_EMD _IO(0x04,218) /* Create the EMD file if not there */ +#define UMSDOS_DOS_SETUP _IO(0x04,219) /* Set the defaults of the MS-DOS driver. */ + +#define UMSDOS_RENAME_DOS _IO(0x04,220) /* rename a file/directory in the DOS + * directory only */ +struct umsdos_ioctl { + struct dirent dos_dirent; + struct umsdos_dirent umsdos_dirent; + /* The following structure is used to exchange some data + * with utilities (umsdos_progs/util/umsdosio.c). The first + * releases were using struct stat from "sys/stat.h". This was + * causing some problem for cross compilation of the kernel + * Since I am not really using the structure stat, but only some field + * of it, I have decided to replicate the structure here + * for compatibility with the binaries out there + * FIXME PTW 1998, this has probably changed + */ + + struct { + dev_t st_dev; + unsigned short __pad1; + ino_t st_ino; + umode_t st_mode; + nlink_t st_nlink; + uid_t st_uid; + gid_t st_gid; + dev_t st_rdev; + unsigned short __pad2; + off_t st_size; + unsigned long st_blksize; + unsigned long st_blocks; + time_t st_atime; + unsigned long __unused1; + time_t st_mtime; + unsigned long __unused2; + time_t st_ctime; + unsigned long __unused3; + unsigned long __unused4; + unsigned long __unused5; + } stat; + char version, release; +}; + +/* Different macros to access struct umsdos_dirent */ +#define EDM_ENTRY_ISUSED(e) ((e)->name_len!=0) + +#ifdef __KERNEL__ + +#ifndef LINUX_FS_H +#include <linux/fs.h> +#endif + +extern struct inode_operations umsdos_dir_inode_operations; +extern struct file_operations umsdos_file_operations; +extern struct inode_operations umsdos_file_inode_operations; +extern struct inode_operations umsdos_file_inode_operations_no_bmap; +extern struct inode_operations umsdos_file_inode_operations_readpage; +extern struct inode_operations umsdos_symlink_inode_operations; +extern int init_umsdos_fs (void); + +#include <linux/umsdos_fs.p> + +#endif /* __KERNEL__ */ + +#endif |