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

/* 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	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.  */


__BEGIN_DECLS

/* 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.
867506f3	2	Copyright (C) 1996, 1997, 1998 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
8a4b65b4	23	#define _SYS_MOUNT_H 1
93995795	24
867506f3	25	#include <features.h>
51702635 UD	26	#include <sys/ioctl.h>
51702635 UD	27
51702635 UD	28	#define BLOCK_SIZE 1024
	29	#define BLOCK_SIZE_BITS 10
	30
	31
	32	/* These are the fs-independent mount-flags: up to 16 flags are
	33	supported */
867506f3 UD	34	enum
	35	{
	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
bf7997b6	56	MS_NOATIME = 1024, /* Do not update access times. */
867506f3	57	#define MS_NOATIME MS_NOATIME
bf7997b6 UD	58	MS_NODIRATIME = 2048 /* Do not update directory access times. */
bf7997b6 UD	59	#define MS_NODIRATIME MS_NODIRATIME
867506f3	60	};
51702635 UD	61
	62	/* Flags that can be altered by MS_REMOUNT */
	63	#define MS_RMT_MASK (MS_RDONLY \| MS_MANDLOCK)
	64
	65
	66	/* Magic mount flag number. Has to be or-ed to the flag values. */
	67
	68	#define MS_MGC_VAL 0xc0ed0000 /* Magic flag number to indicate "new" flags */
	69	#define MS_MGC_MSK 0xffff0000 /* Magic flag number mask */
	70
	71
51702635 UD	72	/* The read-only stuff doesn't really belong here, but any other place
	73	is probably as bad and I don't want to create yet another include
	74	file. */
	75
	76	#define BLKROSET _IO(0x12, 93) /* Set device read-only (0 = read-write). */
	77	#define BLKROGET _IO(0x12, 94) /* Get read-only status (0 = read_write). */
	78	#define BLKRRPART _IO(0x12, 95) /* Re-read partition table. */
	79	#define BLKGETSIZE _IO(0x12, 96) /* Return device size. */
	80	#define BLKFLSBUF _IO(0x12, 97) /* Flush buffer cache. */
	81	#define BLKRASET _IO(0x12, 98) /* Set read ahead for block device. */
	82	#define BLKRAGET _IO(0x12, 99) /* Get current read ahead setting. */
	83
	84
867506f3 UD	85	__BEGIN_DECLS
867506f3 UD	86
93995795	87	/* Mount a filesystem. */
8a4b65b4 UD	88	extern int mount __P ((__const char __special_file, __const char __dir,
	89	__const char *__fstype, unsigned long int __rwflag,
	90	__const void *__data));
93995795 RM	91
93995795 RM	92	/* Unmount a filesystem. */
8a4b65b4	93	extern int umount __P ((__const char *__special_file));
93995795 RM	94
	95	__END_DECLS
	96
	97	#endif /* _SYS_MOUNT_H */