Subversion Repositories c0or1k

/* Header file for mounting/unmount Linux filesystems.

   Copyright (C) 1996,1997,1998,1999,2000,2004 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, write to the Free

   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA

   02111-1307 USA.  */

/* This is taken from /usr/include/linux/fs.h.  */

#ifndef _SYS_MOUNT_H

#define _SYS_MOUNT_H    1

#include <features.h>

#include <sys/ioctl.h>

#define BLOCK_SIZE      1024

#define BLOCK_SIZE_BITS 10

/* These are the fs-independent mount-flags: up to 16 flags are

   supported  */

enum

{

  MS_RDONLY = 1,                /* Mount read-only.  */

#define MS_RDONLY       MS_RDONLY

  MS_NOSUID = 2,                /* Ignore suid and sgid bits.  */

#define MS_NOSUID       MS_NOSUID

  MS_NODEV = 4,                 /* Disallow access to device special files.  */

#define MS_NODEV        MS_NODEV

  MS_NOEXEC = 8,                /* Disallow program execution.  */

#define MS_NOEXEC       MS_NOEXEC

  MS_SYNCHRONOUS = 16,          /* Writes are synced at once.  */

#define MS_SYNCHRONOUS  MS_SYNCHRONOUS

  MS_REMOUNT = 32,              /* Alter flags of a mounted FS.  */

#define MS_REMOUNT      MS_REMOUNT

  MS_MANDLOCK = 64,             /* Allow mandatory locks on an FS.  */

#define MS_MANDLOCK     MS_MANDLOCK

  S_WRITE = 128,                /* Write on file/directory/symlink.  */

#define S_WRITE         S_WRITE

  S_APPEND = 256,               /* Append-only file.  */

#define S_APPEND        S_APPEND

  S_IMMUTABLE = 512,            /* Immutable file.  */

#define S_IMMUTABLE     S_IMMUTABLE

  MS_NOATIME = 1024,            /* Do not update access times.  */

#define MS_NOATIME      MS_NOATIME

  MS_NODIRATIME = 2048,         /* Do not update directory access times.  */

#define MS_NODIRATIME   MS_NODIRATIME

  MS_BIND = 4096,               /* Bind directory at different place.  */

#define MS_BIND         MS_BIND

};

/* Flags that can be altered by MS_REMOUNT  */

#define MS_RMT_MASK (MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_NOATIME \

                     |MS_NODIRATIME)

/* Magic mount flag number. Has to be or-ed to the flag values.  */

#define MS_MGC_VAL 0xc0ed0000   /* Magic flag number to indicate "new" flags */

#define MS_MGC_MSK 0xffff0000   /* Magic flag number mask */

/* The read-only stuff doesn't really belong here, but any other place

   is probably as bad and I don't want to create yet another include

   file.  */

#define BLKROSET   _IO(0x12, 93) /* Set device read-only (0 = read-write).  */

#define BLKROGET   _IO(0x12, 94) /* Get read-only status (0 = read_write).  */

#define BLKRRPART  _IO(0x12, 95) /* Re-read partition table.  */

#define BLKGETSIZE _IO(0x12, 96) /* Return device size.  */

#define BLKFLSBUF  _IO(0x12, 97) /* Flush buffer cache.  */

#define BLKRASET   _IO(0x12, 98) /* Set read ahead for block device.  */

#define BLKRAGET   _IO(0x12, 99) /* Get current read ahead setting.  */

#define BLKFRASET  _IO(0x12,100) /* Set filesystem read-ahead.  */

#define BLKFRAGET  _IO(0x12,101) /* Get filesystem read-ahead.  */

#define BLKSECTSET _IO(0x12,102) /* Set max sectors per request.  */

#define BLKSECTGET _IO(0x12,103) /* Get max sectors per request.  */

#define BLKSSZGET  _IO(0x12,104) /* Get block device sector size.  */

#define BLKBSZGET  _IOR(0x12,112,size_t)

#define BLKBSZSET  _IOW(0x12,113,size_t)

#define BLKGETSIZE64 _IOR(0x12,114,size_t) /* return device size.  */

/* Possible value for FLAGS parameter of `umount2'.  */

enum

{

  MNT_FORCE = 1                 /* Force unmounting.  */

#define MNT_FORCE MNT_FORCE

};

__BEGIN_DECLS

/* Mount a filesystem.  */

extern int mount (__const char *__special_file, __const char *__dir,

                  __const char *__fstype, unsigned long int __rwflag,

                  __const void *__data) __THROW;

/* Unmount a filesystem.  */

extern int umount (__const char *__special_file) __THROW;

/* Unmount a filesystem.  Force unmounting if FLAGS is set to MNT_FORCE.  */

extern int umount2 (__const char *__special_file, int __flags) __THROW;

__END_DECLS

#endif /* _SYS_MOUNT_H */