| Dan Albert | 287553d | 2017-02-16 10:47:51 -0800 | [diff] [blame] | 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 */ |