1 /* Header file for mounting/unmount Linux filesystems.
2 Copyright (C) 1996,1997,1998,1999,2000,2004 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
20 /* This is taken from /usr/include/linux/fs.h. */
23 #define _SYS_MOUNT_H 1
26 #include <sys/ioctl.h>
28 #define BLOCK_SIZE 1024
29 #define BLOCK_SIZE_BITS 10
32 /* These are the fs-independent mount-flags: up to 16 flags are
36 MS_RDONLY
= 1, /* Mount read-only. */
37 #define MS_RDONLY MS_RDONLY
38 MS_NOSUID
= 2, /* Ignore suid and sgid bits. */
39 #define MS_NOSUID MS_NOSUID
40 MS_NODEV
= 4, /* Disallow access to device special files. */
41 #define MS_NODEV MS_NODEV
42 MS_NOEXEC
= 8, /* Disallow program execution. */
43 #define MS_NOEXEC MS_NOEXEC
44 MS_SYNCHRONOUS
= 16, /* Writes are synced at once. */
45 #define MS_SYNCHRONOUS MS_SYNCHRONOUS
46 MS_REMOUNT
= 32, /* Alter flags of a mounted FS. */
47 #define MS_REMOUNT MS_REMOUNT
48 MS_MANDLOCK
= 64, /* Allow mandatory locks on an FS. */
49 #define MS_MANDLOCK MS_MANDLOCK
50 S_WRITE
= 128, /* Write on file/directory/symlink. */
51 #define S_WRITE S_WRITE
52 S_APPEND
= 256, /* Append-only file. */
53 #define S_APPEND S_APPEND
54 S_IMMUTABLE
= 512, /* Immutable file. */
55 #define S_IMMUTABLE S_IMMUTABLE
56 MS_NOATIME
= 1024, /* Do not update access times. */
57 #define MS_NOATIME MS_NOATIME
58 MS_NODIRATIME
= 2048, /* Do not update directory access times. */
59 #define MS_NODIRATIME MS_NODIRATIME
60 MS_BIND
= 4096, /* Bind directory at different place. */
61 #define MS_BIND MS_BIND
64 /* Flags that can be altered by MS_REMOUNT */
65 #define MS_RMT_MASK (MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_NOATIME \
69 /* Magic mount flag number. Has to be or-ed to the flag values. */
71 #define MS_MGC_VAL 0xc0ed0000 /* Magic flag number to indicate "new" flags */
72 #define MS_MGC_MSK 0xffff0000 /* Magic flag number mask */
75 /* The read-only stuff doesn't really belong here, but any other place
76 is probably as bad and I don't want to create yet another include
79 #define BLKROSET _IO(0x12, 93) /* Set device read-only (0 = read-write). */
80 #define BLKROGET _IO(0x12, 94) /* Get read-only status (0 = read_write). */
81 #define BLKRRPART _IO(0x12, 95) /* Re-read partition table. */
82 #define BLKGETSIZE _IO(0x12, 96) /* Return device size. */
83 #define BLKFLSBUF _IO(0x12, 97) /* Flush buffer cache. */
84 #define BLKRASET _IO(0x12, 98) /* Set read ahead for block device. */
85 #define BLKRAGET _IO(0x12, 99) /* Get current read ahead setting. */
86 #define BLKFRASET _IO(0x12,100) /* Set filesystem read-ahead. */
87 #define BLKFRAGET _IO(0x12,101) /* Get filesystem read-ahead. */
88 #define BLKSECTSET _IO(0x12,102) /* Set max sectors per request. */
89 #define BLKSECTGET _IO(0x12,103) /* Get max sectors per request. */
90 #define BLKSSZGET _IO(0x12,104) /* Get block device sector size. */
91 #define BLKBSZGET _IOR(0x12,112,size_t)
92 #define BLKBSZSET _IOW(0x12,113,size_t)
93 #define BLKGETSIZE64 _IOR(0x12,114,size_t) /* return device size. */
96 /* Possible value for FLAGS parameter of `umount2'. */
99 MNT_FORCE
= 1 /* Force unmounting. */
100 #define MNT_FORCE MNT_FORCE
106 /* Mount a filesystem. */
107 extern int mount (__const
char *__special_file
, __const
char *__dir
,
108 __const
char *__fstype
, unsigned long int __rwflag
,
109 __const
void *__data
) __THROW
;
111 /* Unmount a filesystem. */
112 extern int umount (__const
char *__special_file
) __THROW
;
114 /* Unmount a filesystem. Force unmounting if FLAGS is set to MNT_FORCE. */
115 extern int umount2 (__const
char *__special_file
, int __flags
) __THROW
;
119 #endif /* _SYS_MOUNT_H */