| /* |
| * 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_ONE_SECOND (1<<17) /* fs has 1 sec a/m/ctime resolution */ |
| #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 */ |
