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 (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright (c) 2017, Intel Corporation. All rights reserved.
23 * Copyright 2019 Joyent, Inc.
24 */
25
26 #ifndef _SYS_ZFS_PROJECT_H
27 #define _SYS_ZFS_PROJECT_H
28
29 #ifndef _KERNEL
30 #ifndef _SYS_MOUNT_H
31 /* XXX: some hack to avoid include sys/mount.h */
32 #define _SYS_MOUNT_H
33 #endif
34 #endif
35
36 #ifdef FS_PROJINHERIT_FL
37 #define ZFS_PROJINHERIT_FL FS_PROJINHERIT_FL
38 #else
39 #define ZFS_PROJINHERIT_FL 0x20000000
40 #endif
41
42 #ifdef FS_IOC_FSGETXATTR
43 typedef struct fsxattr zfsxattr_t;
44
45 #define ZFS_IOC_FSGETXATTR FS_IOC_FSGETXATTR
46 #define ZFS_IOC_FSSETXATTR FS_IOC_FSSETXATTR
47 #else
48 #include <sys/ioccom.h>
49 typedef struct zfsxattr {
50 uint32_t fsx_xflags; /* xflags field value (get/set) */
51 uint32_t fsx_projid; /* project identifier (get/set) */
52 } zfsxattr_t;
53
54 #define ZFS_IOC_FSGETXATTR _IOR('X', 31, zfsxattr_t)
55 #define ZFS_IOC_FSSETXATTR _IOW('X', 32, zfsxattr_t)
56 #endif
57
58 #define ZFS_DEFAULT_PROJID (0ULL)
59 /*
60 * It is NOT ondisk project ID value. Just means either the object has
61 * no project ID or the operation does not touch project ID attribute.
62 */
63 #define ZFS_INVALID_PROJID (-1ULL)
64
65 static inline boolean_t
zpl_is_valid_projid(uint32_t projid)66 zpl_is_valid_projid(uint32_t projid)
67 {
68 /*
69 * zfsxattr::fsx_projid is 32-bits, when convert to uint64_t,
70 * the higher 32-bits will be set as zero, so cannot directly
71 * compare with ZFS_INVALID_PROJID (-1ULL)
72 */
73 if ((uint32_t)ZFS_INVALID_PROJID == projid)
74 return (B_FALSE);
75 return (B_TRUE);
76 }
77
78 #endif /* _SYS_ZFS_PROJECT_H */
79