1 // SPDX-License-Identifier: CDDL-1.0 2 /* 3 * CDDL HEADER START 4 * 5 * The contents of this file are subject to the terms of the 6 * Common Development and Distribution License, Version 1.0 only 7 * (the "License"). You may not use this file except in compliance 8 * with the License. 9 * 10 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 11 * or https://opensource.org/licenses/CDDL-1.0. 12 * See the License for the specific language governing permissions 13 * and limitations under the License. 14 * 15 * When distributing Covered Code, include this CDDL HEADER in each 16 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 17 * If applicable, add the following below this CDDL HEADER, with the 18 * fields enclosed by brackets "[]" replaced with your own identifying 19 * information: Portions Copyright [yyyy] [name of copyright owner] 20 * 21 * CDDL HEADER END 22 */ 23 /* 24 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 25 * Use is subject to license terms. 26 */ 27 28 29 #ifndef _LIBSPL_SYS_MOUNT_H 30 #define _LIBSPL_SYS_MOUNT_H 31 32 #undef _SYS_MOUNT_H_ 33 #include_next <sys/mount.h> 34 35 #include <assert.h> 36 #include <string.h> 37 #include <stdlib.h> 38 39 #if !defined(BLKGETSIZE64) 40 #define BLKGETSIZE64 DIOCGMEDIASIZE 41 #endif 42 43 /* 44 * Some old glibc headers don't correctly define MS_DIRSYNC and 45 * instead use the enum name S_WRITE. When using these older 46 * headers define MS_DIRSYNC to be S_WRITE. 47 */ 48 #if !defined(MS_DIRSYNC) 49 #define MS_DIRSYNC S_WRITE 50 #endif 51 52 /* 53 * Some old glibc headers don't correctly define MS_POSIXACL and 54 * instead leave it undefined. When using these older headers define 55 * MS_POSIXACL to the reserved value of (1<<16). 56 */ 57 #if !defined(MS_POSIXACL) 58 #define MS_POSIXACL (1<<16) 59 #endif 60 61 #define MS_NOSUID MNT_NOSUID 62 #define MS_NOEXEC MNT_NOEXEC 63 #define MS_NODEV 0 64 #define S_WRITE 0 65 #define MS_BIND 0 66 #define MS_REMOUNT 0 67 #define MS_SYNCHRONOUS MNT_SYNCHRONOUS 68 69 #define MS_USERS (MS_NOEXEC|MS_NOSUID|MS_NODEV) 70 #define MS_OWNER (MS_NOSUID|MS_NODEV) 71 #define MS_GROUP (MS_NOSUID|MS_NODEV) 72 #define MS_COMMENT 0 73 74 /* 75 * Older glibc <sys/mount.h> headers did not define all the available 76 * umount2(2) flags. Both MNT_FORCE and MNT_DETACH are supported in the 77 * kernel back to 2.4.11 so we define them correctly if they are missing. 78 */ 79 #ifdef MNT_FORCE 80 #define MS_FORCE MNT_FORCE 81 #else 82 #define MS_FORCE 0x00000001 83 #endif /* MNT_FORCE */ 84 85 #ifdef MNT_DETACH 86 #define MS_DETACH MNT_DETACH 87 #else 88 #define MS_DETACH 0x00000002 89 #endif /* MNT_DETACH */ 90 91 /* 92 * Overlay mount is default in Linux, but for solaris/zfs 93 * compatibility, MS_OVERLAY is defined to explicitly have the user 94 * provide a flag (-O) to mount over a non empty directory. 95 */ 96 #define MS_OVERLAY 0x00000004 97 98 /* 99 * MS_CRYPT indicates that encryption keys should be loaded if they are not 100 * already available. This is not defined in glibc, but it is never seen by 101 * the kernel so it will not cause any problems. 102 */ 103 #define MS_CRYPT 0x00000008 104 105 #endif /* _LIBSPL_SYS_MOUNT_H */ 106