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/* 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, see
<http://www.gnu.org/licenses/>. */
/* 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
MNT_DETACH = 2, /* Just detach from the tree. */
#define MNT_DETACH MNT_DETACH
MNT_EXPIRE = 4 /* Mark for expiry. */
#define MNT_EXPIRE MNT_EXPIRE
};
__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;
#ifdef __UCLIBC_LINUX_SPECIFIC__
/* Unmount a filesystem. Force unmounting if FLAGS is set to MNT_FORCE. */
extern int umount2 (__const char *__special_file, int __flags) __THROW;
libc_hidden_proto(umount2)
#endif
__END_DECLS
#endif /* _SYS_MOUNT_H */
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