| 1 | /* Header file for mounting/unmount Linux filesystems. |
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| 2 | Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, write to the Free |
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| 17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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| 18 | 02111-1307 USA. */ |
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| 19 | |
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| 20 | /* This is taken from /usr/include/linux/fs.h. */ |
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| 21 | |
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| 22 | #ifndef _SYS_MOUNT_H |
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| 23 | #define _SYS_MOUNT_H 1 |
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| 24 | |
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| 25 | #include <features.h> |
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| 26 | #include <sys/ioctl.h> |
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| 27 | |
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| 28 | #define BLOCK_SIZE 1024 |
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| 29 | #define BLOCK_SIZE_BITS 10 |
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| 30 | |
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| 31 | |
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| 32 | /* These are the fs-independent mount-flags: up to 16 flags are |
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| 33 | supported */ |
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| 34 | enum |
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| 35 | { |
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| 36 | MS_RDONLY = 1, /* Mount read-only. */ |
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| 37 | #define MS_RDONLY MS_RDONLY |
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| 38 | MS_NOSUID = 2, /* Ignore suid and sgid bits. */ |
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| 39 | #define MS_NOSUID MS_NOSUID |
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| 40 | MS_NODEV = 4, /* Disallow access to device special files. */ |
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| 41 | #define MS_NODEV MS_NODEV |
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| 42 | MS_NOEXEC = 8, /* Disallow program execution. */ |
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| 43 | #define MS_NOEXEC MS_NOEXEC |
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| 44 | MS_SYNCHRONOUS = 16, /* Writes are synced at once. */ |
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| 45 | #define MS_SYNCHRONOUS MS_SYNCHRONOUS |
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| 46 | MS_REMOUNT = 32, /* Alter flags of a mounted FS. */ |
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| 47 | #define MS_REMOUNT MS_REMOUNT |
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| 48 | MS_MANDLOCK = 64, /* Allow mandatory locks on an FS. */ |
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| 49 | #define MS_MANDLOCK MS_MANDLOCK |
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| 50 | S_WRITE = 128, /* Write on file/directory/symlink. */ |
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| 51 | #define S_WRITE S_WRITE |
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| 52 | S_APPEND = 256, /* Append-only file. */ |
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| 53 | #define S_APPEND S_APPEND |
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| 54 | S_IMMUTABLE = 512, /* Immutable file. */ |
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| 55 | #define S_IMMUTABLE S_IMMUTABLE |
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| 56 | MS_NOATIME = 1024, /* Do not update access times. */ |
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| 57 | #define MS_NOATIME MS_NOATIME |
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| 58 | MS_NODIRATIME = 2048, /* Do not update directory access times. */ |
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| 59 | #define MS_NODIRATIME MS_NODIRATIME |
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| 60 | MS_BIND = 4096, /* Bind directory at different place. */ |
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| 61 | #define MS_BIND MS_BIND |
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| 62 | }; |
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| 63 | |
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| 64 | /* Flags that can be altered by MS_REMOUNT */ |
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| 65 | #define MS_RMT_MASK (MS_RDONLY | MS_MANDLOCK) |
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| 66 | |
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| 67 | |
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| 68 | /* Magic mount flag number. Has to be or-ed to the flag values. */ |
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| 69 | |
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| 70 | #define MS_MGC_VAL 0xc0ed0000 /* Magic flag number to indicate "new" flags */ |
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| 71 | #define MS_MGC_MSK 0xffff0000 /* Magic flag number mask */ |
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| 72 | |
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| 73 | |
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| 74 | /* The read-only stuff doesn't really belong here, but any other place |
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| 75 | is probably as bad and I don't want to create yet another include |
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| 76 | file. */ |
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| 77 | |
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| 78 | #define BLKROSET _IO(0x12, 93) /* Set device read-only (0 = read-write). */ |
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| 79 | #define BLKROGET _IO(0x12, 94) /* Get read-only status (0 = read_write). */ |
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| 80 | #define BLKRRPART _IO(0x12, 95) /* Re-read partition table. */ |
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| 81 | #define BLKGETSIZE _IO(0x12, 96) /* Return device size. */ |
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| 82 | #define BLKFLSBUF _IO(0x12, 97) /* Flush buffer cache. */ |
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| 83 | #define BLKRASET _IO(0x12, 98) /* Set read ahead for block device. */ |
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| 84 | #define BLKRAGET _IO(0x12, 99) /* Get current read ahead setting. */ |
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| 85 | |
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| 86 | |
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| 87 | /* Possible value for FLAGS parameter of `umount2'. */ |
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| 88 | enum |
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| 89 | { |
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| 90 | MNT_FORCE = 1 /* Force unmounting. */ |
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| 91 | #define MNT_FORCE MNT_FORCE |
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| 92 | }; |
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| 93 | |
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| 94 | |
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| 95 | __BEGIN_DECLS |
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| 96 | |
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| 97 | /* Mount a filesystem. */ |
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| 98 | extern int mount (__const char *__special_file, __const char *__dir, |
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| 99 | __const char *__fstype, unsigned long int __rwflag, |
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| 100 | __const void *__data) __THROW; |
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| 101 | |
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| 102 | /* Unmount a filesystem. */ |
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| 103 | extern int umount (__const char *__special_file) __THROW; |
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| 104 | |
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| 105 | /* Unmount a filesystem. Force unmounting if FLAGS is set to MNT_FORCE. */ |
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| 106 | extern int umount2 (__const char *__special_file, int __flags) __THROW; |
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| 107 | |
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| 108 | __END_DECLS |
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| 109 | |
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| 110 | #endif /* _SYS_MOUNT_H */ |
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