4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
23 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
28 #ifndef _LIBSPL_SYS_MOUNT_H
29 #define _LIBSPL_SYS_MOUNT_H
32 #include_next <sys/mount.h>
38 #if !defined(BLKGETSIZE64)
39 #define BLKGETSIZE64 DIOCGMEDIASIZE
43 * Some old glibc headers don't correctly define MS_DIRSYNC and
44 * instead use the enum name S_WRITE. When using these older
45 * headers define MS_DIRSYNC to be S_WRITE.
47 #if !defined(MS_DIRSYNC)
48 #define MS_DIRSYNC S_WRITE
52 * Some old glibc headers don't correctly define MS_POSIXACL and
53 * instead leave it undefined. When using these older headers define
54 * MS_POSIXACL to the reserved value of (1<<16).
56 #if !defined(MS_POSIXACL)
57 #define MS_POSIXACL (1<<16)
60 #define MS_NOSUID MNT_NOSUID
61 #define MS_NOEXEC MNT_NOEXEC
66 #define MS_SYNCHRONOUS MNT_SYNCHRONOUS
68 #define MS_USERS (MS_NOEXEC|MS_NOSUID|MS_NODEV)
69 #define MS_OWNER (MS_NOSUID|MS_NODEV)
70 #define MS_GROUP (MS_NOSUID|MS_NODEV)
74 * Older glibc <sys/mount.h> headers did not define all the available
75 * umount2(2) flags. Both MNT_FORCE and MNT_DETACH are supported in the
76 * kernel back to 2.4.11 so we define them correctly if they are missing.
79 #define MS_FORCE MNT_FORCE
81 #define MS_FORCE 0x00000001
82 #endif /* MNT_FORCE */
85 #define MS_DETACH MNT_DETACH
87 #define MS_DETACH 0x00000002
88 #endif /* MNT_DETACH */
91 * Overlay mount is default in Linux, but for solaris/zfs
92 * compatibility, MS_OVERLAY is defined to explicitly have the user
93 * provide a flag (-O) to mount over a non empty directory.
95 #define MS_OVERLAY 0x00000004
98 * MS_CRYPT indicates that encryption keys should be loaded if they are not
99 * already available. This is not defined in glibc, but it is never seen by
100 * the kernel so it will not cause any problems.
102 #define MS_CRYPT 0x00000008
104 #endif /* _LIBSPL_SYS_MOUNT_H */