[thirdparty/glibc.git] / sysdeps / unix / sysv / linux / sys / mount.h

/* Header file for mounting/unmount Linux filesystems.
   Copyright (C) 1996, 1997 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	1
#include <features.h>

#include <sys/ioctl.h>

__BEGIN_DECLS

#define BLOCK_SIZE	1024
#define BLOCK_SIZE_BITS	10


/* These are the fs-independent mount-flags: up to 16 flags are
   supported  */
#define MS_RDONLY	1	/* Mount read-only.  */
#define MS_NOSUID	2	/* Ignore suid and sgid bits.  */
#define MS_NODEV	4	/* Disallow access to device special files.  */
#define MS_NOEXEC	8	/* Disallow program execution.  */
#define MS_SYNCHRONOUS	16	/* Writes are synced at once.  */
#define MS_REMOUNT	32	/* Alter flags of a mounted FS.  */
#define MS_MANDLOCK	64	/* Allow mandatory locks on an FS.  */
#define S_WRITE		128	/* Write on file/directory/symlink.  */
#define S_APPEND	256	/* Append-only file.  */
#define S_IMMUTABLE	512	/* Immutable file.  */
#define MS_NOATIME	1024	/* Do not update access times.  */


/* 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.  */


/* 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));

__END_DECLS

#endif /* _SYS_MOUNT_H */
Commit	Line	Data
93995795	1	/* Header file for mounting/unmount Linux filesystems.
51702635	2	Copyright (C) 1996, 1997 Free Software Foundation, Inc.
8a4b65b4	3	This file is part of the GNU C Library.
93995795	4
8a4b65b4 UD	5	The GNU C Library is free software; you can redistribute it and/or
	6	modify it under the terms of the GNU Library General Public License as
	7	published by the Free Software Foundation; either version 2 of the
	8	License, or (at your option) any later version.
93995795	9
8a4b65b4 UD	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	Library General Public License for more details.
93995795	14
8a4b65b4 UD	15	You should have received a copy of the GNU Library General Public
	16	License along with the GNU C Library; see the file COPYING.LIB. If not,
	17	write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
	18	Boston, MA 02111-1307, USA. */
93995795	19
51702635 UD	20	/* This is taken from /usr/include/linux/fs.h. */
51702635 UD	21
93995795	22	#ifndef _SYS_MOUNT_H
93995795	23
8a4b65b4	24	#define _SYS_MOUNT_H 1
93995795 RM	25	#include <features.h>
93995795 RM	26
51702635 UD	27	#include <sys/ioctl.h>
51702635 UD	28
93995795 RM	29	__BEGIN_DECLS
93995795 RM	30
51702635 UD	31	#define BLOCK_SIZE 1024
	32	#define BLOCK_SIZE_BITS 10
	33
	34
	35	/* These are the fs-independent mount-flags: up to 16 flags are
	36	supported */
	37	#define MS_RDONLY 1 /* Mount read-only. */
	38	#define MS_NOSUID 2 /* Ignore suid and sgid bits. */
	39	#define MS_NODEV 4 /* Disallow access to device special files. */
	40	#define MS_NOEXEC 8 /* Disallow program execution. */
	41	#define MS_SYNCHRONOUS 16 /* Writes are synced at once. */
	42	#define MS_REMOUNT 32 /* Alter flags of a mounted FS. */
	43	#define MS_MANDLOCK 64 /* Allow mandatory locks on an FS. */
	44	#define S_WRITE 128 /* Write on file/directory/symlink. */
	45	#define S_APPEND 256 /* Append-only file. */
	46	#define S_IMMUTABLE 512 /* Immutable file. */
	47	#define MS_NOATIME 1024 /* Do not update access times. */
	48
	49
	50	/* Flags that can be altered by MS_REMOUNT */
	51	#define MS_RMT_MASK (MS_RDONLY \| MS_MANDLOCK)
	52
	53
	54	/* Magic mount flag number. Has to be or-ed to the flag values. */
	55
	56	#define MS_MGC_VAL 0xc0ed0000 /* Magic flag number to indicate "new" flags */
	57	#define MS_MGC_MSK 0xffff0000 /* Magic flag number mask */
	58
	59
51702635 UD	60	/* The read-only stuff doesn't really belong here, but any other place
	61	is probably as bad and I don't want to create yet another include
	62	file. */
	63
	64	#define BLKROSET _IO(0x12, 93) /* Set device read-only (0 = read-write). */
	65	#define BLKROGET _IO(0x12, 94) /* Get read-only status (0 = read_write). */
	66	#define BLKRRPART _IO(0x12, 95) /* Re-read partition table. */
	67	#define BLKGETSIZE _IO(0x12, 96) /* Return device size. */
	68	#define BLKFLSBUF _IO(0x12, 97) /* Flush buffer cache. */
	69	#define BLKRASET _IO(0x12, 98) /* Set read ahead for block device. */
	70	#define BLKRAGET _IO(0x12, 99) /* Get current read ahead setting. */
	71
	72
93995795	73	/* Mount a filesystem. */
8a4b65b4 UD	74	extern int mount __P ((__const char __special_file, __const char __dir,
	75	__const char *__fstype, unsigned long int __rwflag,
	76	__const void *__data));
93995795 RM	77
93995795 RM	78	/* Unmount a filesystem. */
8a4b65b4	79	extern int umount __P ((__const char *__special_file));
93995795 RM	80
	81	__END_DECLS
	82
	83	#endif /* _SYS_MOUNT_H */