diff options
Diffstat (limited to 'include/sys')
| -rw-r--r-- | include/sys/mount.h | 107 |
1 files changed, 99 insertions, 8 deletions
diff --git a/include/sys/mount.h b/include/sys/mount.h index a0765e2ee..862c1f040 100644 --- a/include/sys/mount.h +++ b/include/sys/mount.h @@ -1,17 +1,108 @@ +/* Header file for mounting/unmount Linux filesystems. + Copyright (C) 1996, 1997, 1998 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. 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 +#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 +}; + +/* Flags that can be altered by MS_REMOUNT */ +#define MS_RMT_MASK (MS_RDONLY | MS_MANDLOCK) + + +/* 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. */ + + +/* Possible value for FLAGS parameter of `umount2'. */ +enum +{ + MNT_FORCE = 1 /* Force unmounting. */ +#define MNT_FORCE MNT_FORCE +}; + __BEGIN_DECLS -extern int mount __P ((__const char* __specialfile, - __const char* __dir,__const char* __filesystemype, - unsigned long __rwflag,__const void *__data)); +/* Mount a filesystem. */ +extern int mount __P ((__const char *__special_file, __const char *__dir, + __const char *__fstype, unsigned long int __rwflag, + __const void *__data)); + +/* Unmount a filesystem. */ +extern int umount __P ((__const char *__special_file)); + +/* Unmount a filesystem. Force unmounting if FLAGS is set to MNT_FORCE. */ +extern int umount2 __P ((__const char *__special_file, int __flags)); -extern int umount __P ((__const char* __specialfile)); - - __END_DECLS -#endif +#endif /* _SYS_MOUNT_H */ |