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 #if !defined(__linux__) || !defined(IN_BASE) 33 #undef _SYS_MOUNT_H_ 34 #include_next <sys/mount.h> 35 #endif 36 37 #include <assert.h> 38 #include <string.h> 39 #include <stdlib.h> 40 41 #if !defined(BLKGETSIZE64) 42 #define BLKGETSIZE64 DIOCGMEDIASIZE 43 #endif 44 45 /* 46 * Some old glibc headers don't correctly define MS_DIRSYNC and 47 * instead use the enum name S_WRITE. When using these older 48 * headers define MS_DIRSYNC to be S_WRITE. 49 */ 50 #if !defined(MS_DIRSYNC) 51 #define MS_DIRSYNC S_WRITE 52 #endif 53 54 /* 55 * Some old glibc headers don't correctly define MS_POSIXACL and 56 * instead leave it undefined. When using these older headers define 57 * MS_POSIXACL to the reserved value of (1<<16). 58 */ 59 #if !defined(MS_POSIXACL) 60 #define MS_POSIXACL (1<<16) 61 #endif 62 63 #define MS_NOSUID MNT_NOSUID 64 #define MS_NOEXEC MNT_NOEXEC 65 #define MS_NODEV 0 66 #define S_WRITE 0 67 #define MS_BIND 0 68 #define MS_REMOUNT 0 69 #define MS_SYNCHRONOUS MNT_SYNCHRONOUS 70 71 #define MS_USERS (MS_NOEXEC|MS_NOSUID|MS_NODEV) 72 #define MS_OWNER (MS_NOSUID|MS_NODEV) 73 #define MS_GROUP (MS_NOSUID|MS_NODEV) 74 #define MS_COMMENT 0 75 76 /* 77 * Older glibc <sys/mount.h> headers did not define all the available 78 * umount2(2) flags. Both MNT_FORCE and MNT_DETACH are supported in the 79 * kernel back to 2.4.11 so we define them correctly if they are missing. 80 */ 81 #ifdef MNT_FORCE 82 #define MS_FORCE MNT_FORCE 83 #else 84 #define MS_FORCE 0x00000001 85 #endif /* MNT_FORCE */ 86 87 #ifdef MNT_DETACH 88 #define MS_DETACH MNT_DETACH 89 #else 90 #define MS_DETACH 0x00000002 91 #endif /* MNT_DETACH */ 92 93 /* 94 * Overlay mount is default in Linux, but for solaris/zfs 95 * compatibility, MS_OVERLAY is defined to explicitly have the user 96 * provide a flag (-O) to mount over a non empty directory. 97 */ 98 #define MS_OVERLAY 0x00000004 99 100 /* 101 * MS_CRYPT indicates that encryption keys should be loaded if they are not 102 * already available. This is not defined in glibc, but it is never seen by 103 * the kernel so it will not cause any problems. 104 */ 105 #define MS_CRYPT 0x00000008 106 107 #endif /* _LIBSPL_SYS_MOUNT_H */ 108