74c0464006
(cherry-pick of 82393decdfc6b0383054fb5d2f54725bbee88b8c.) Bug: 6925012 Change-Id: I4f962d8975ad62ff4b9983150f9e481796092b9d
106 lines
3.9 KiB
C
106 lines
3.9 KiB
C
/*
|
|
* Copyright (C) 2008 The Android Open Source Project
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
|
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
#ifndef _SYS_MOUNT_H
|
|
#define _SYS_MOUNT_H
|
|
|
|
#include <sys/cdefs.h>
|
|
#include <sys/ioctl.h>
|
|
|
|
__BEGIN_DECLS
|
|
|
|
/*
|
|
* These are the fs-independent mount-flags: up to 32 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 MS_DIRSYNC 128 /* Directory modifications are synchronous */
|
|
#define MS_NOATIME 1024 /* Do not update access times. */
|
|
#define MS_NODIRATIME 2048 /* Do not update directory access times */
|
|
#define MS_BIND 4096
|
|
#define MS_MOVE 8192
|
|
#define MS_REC 16384
|
|
#define MS_VERBOSE 32768
|
|
#define MS_POSIXACL (1<<16) /* VFS does not apply the umask */
|
|
#define MS_UNBINDABLE (1<<17) /* change to unbindable */
|
|
#define MS_PRIVATE (1<<18) /* change to private */
|
|
#define MS_SLAVE (1<<19) /* change to slave */
|
|
#define MS_SHARED (1<<20) /* change to shared */
|
|
#define MS_ACTIVE (1<<30)
|
|
#define MS_NOUSER (1<<31)
|
|
|
|
/*
|
|
* Superblock flags that can be altered by MS_REMOUNT
|
|
*/
|
|
#define MS_RMT_MASK (MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_NOATIME|MS_NODIRATIME)
|
|
|
|
/*
|
|
* Old magic mount flag and mask
|
|
*/
|
|
#define MS_MGC_VAL 0xC0ED0000
|
|
#define MS_MGC_MSK 0xffff0000
|
|
|
|
/*
|
|
* umount2() flags
|
|
*/
|
|
#define MNT_FORCE 1 /* Forcibly unmount */
|
|
#define MNT_DETACH 2 /* Detach from tree only */
|
|
#define MNT_EXPIRE 4 /* Mark for expiry */
|
|
|
|
/*
|
|
* Block device ioctls
|
|
*/
|
|
#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. */
|
|
|
|
/*
|
|
* Prototypes
|
|
*/
|
|
extern int mount(const char *, const char *,
|
|
const char *, unsigned long,
|
|
const void *);
|
|
extern int umount(const char *);
|
|
extern int umount2(const char *, int);
|
|
|
|
#if 0 /* MISSING FROM BIONIC */
|
|
extern int pivot_root(const char *, const char *);
|
|
#endif /* MISSING */
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* _SYS_MOUNT_H */
|