ndk/platforms/android-18/arch-arm/usr/include/sys/mount.h

   1 /*
   2  * Copyright (C) 2008 The Android Open Source Project
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *  * Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  *  * Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in
  12  *    the documentation and/or other materials provided with the
  13  *    distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  18  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  19  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
  22  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  25  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28 #ifndef _SYS_MOUNT_H
  29 #define _SYS_MOUNT_H
  30
  31 #include <sys/cdefs.h>
  32 #include <sys/ioctl.h>
  33
  34 __BEGIN_DECLS
  35
  36 /*
  37  * These are the fs-independent mount-flags: up to 32 flags are supported
  38  */
  39 #define MS_RDONLY        1      /* Mount read-only */
  40 #define MS_NOSUID        2      /* Ignore suid and sgid bits */
  41 #define MS_NODEV         4      /* Disallow access to device special files */
  42 #define MS_NOEXEC        8      /* Disallow program execution */
  43 #define MS_SYNCHRONOUS  16      /* Writes are synced at once */
  44 #define MS_REMOUNT      32      /* Alter flags of a mounted FS */
  45 #define MS_MANDLOCK     64      /* Allow mandatory locks on an FS */
  46 #define MS_DIRSYNC      128     /* Directory modifications are synchronous */
  47 #define MS_NOATIME      1024    /* Do not update access times. */
  48 #define MS_NODIRATIME   2048    /* Do not update directory access times */
  49 #define MS_BIND         4096
  50 #define MS_MOVE         8192
  51 #define MS_REC          16384
  52 #define MS_VERBOSE      32768
  53 #define MS_POSIXACL     (1<<16) /* VFS does not apply the umask */
  54 #define MS_ONE_SECOND   (1<<17) /* fs has 1 sec a/m/ctime resolution */
  55 #define MS_ACTIVE       (1<<30)
  56 #define MS_NOUSER       (1<<31)
  57
  58 /*
  59  * Superblock flags that can be altered by MS_REMOUNT
  60  */
  61 #define MS_RMT_MASK     (MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_NOATIME|MS_NODIRATIME)
  62
  63 /*
  64  * Old magic mount flag and mask
  65  */
  66 #define MS_MGC_VAL 0xC0ED0000
  67 #define MS_MGC_MSK 0xffff0000
  68
  69 /*
  70  * umount2() flags
  71  */
  72 #define MNT_FORCE       1       /* Forcibly unmount */
  73 #define MNT_DETACH      2       /* Detach from tree only */
  74 #define MNT_EXPIRE      4       /* Mark for expiry */
  75
  76 /*
  77  * Block device ioctls
  78  */
  79 #define BLKROSET   _IO(0x12, 93) /* Set device read-only (0 = read-write).  */
  80 #define BLKROGET   _IO(0x12, 94) /* Get read-only status (0 = read_write).  */
  81 #define BLKRRPART  _IO(0x12, 95) /* Re-read partition table.  */
  82 #define BLKGETSIZE _IO(0x12, 96) /* Return device size.  */
  83 #define BLKFLSBUF  _IO(0x12, 97) /* Flush buffer cache.  */
  84 #define BLKRASET   _IO(0x12, 98) /* Set read ahead for block device.  */
  85 #define BLKRAGET   _IO(0x12, 99) /* Get current read ahead setting.  */
  86
  87 /*
  88  * Prototypes
  89  */
  90 extern int mount(const char *, const char *,
  91                    const char *, unsigned long,
  92                    const void *);
  93 extern int umount(const char *);
  94 extern int umount2(const char *, int);
  95
  96 #if 0 /* MISSING FROM BIONIC */
  97 extern int pivot_root(const char *, const char *);
  98 #endif /* MISSING */
  99
 100 __END_DECLS
 101
 102 #endif /* _SYS_MOUNT_H */