1 /* 2 * CDDL HEADER START 3 * 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 7 * with the License. 8 * 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. 13 * 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] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 28 #ifndef _LIBSPL_SYS_MOUNT_H 29 #define _LIBSPL_SYS_MOUNT_H 30 31 #undef _SYS_MOUNT_H_ 32 #include_next <sys/mount.h> 33 34 #include <assert.h> 35 #include <string.h> 36 #include <stdlib.h> 37 38 #if !defined(BLKGETSIZE64) 39 #define BLKGETSIZE64 DIOCGMEDIASIZE 40 #endif 41 42 /* 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. 46 */ 47 #if !defined(MS_DIRSYNC) 48 #define MS_DIRSYNC S_WRITE 49 #endif 50 51 /* 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). 55 */ 56 #if !defined(MS_POSIXACL) 57 #define MS_POSIXACL (1<<16) 58 #endif 59 60 #define MS_NOSUID MNT_NOSUID 61 #define MS_NOEXEC MNT_NOEXEC 62 #define MS_NODEV 0 63 #define S_WRITE 0 64 #define MS_BIND 0 65 #define MS_REMOUNT 0 66 #define MS_SYNCHRONOUS MNT_SYNCHRONOUS 67 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) 71 #define MS_COMMENT 0 72 73 /* 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. 77 */ 78 #ifdef MNT_FORCE 79 #define MS_FORCE MNT_FORCE 80 #else 81 #define MS_FORCE 0x00000001 82 #endif /* MNT_FORCE */ 83 84 #ifdef MNT_DETACH 85 #define MS_DETACH MNT_DETACH 86 #else 87 #define MS_DETACH 0x00000002 88 #endif /* MNT_DETACH */ 89 90 /* 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. 94 */ 95 #define MS_OVERLAY 0x00000004 96 97 /* 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. 101 */ 102 #define MS_CRYPT 0x00000008 103 104 #endif /* _LIBSPL_SYS_MOUNT_H */ 105