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 https://opensource.org/licenses/CDDL-1.0.
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 */
24
25 #ifndef _SYS_ZFS_PROJECT_H
26 #define _SYS_ZFS_PROJECT_H
27
28 #ifndef _KERNEL
29 #ifndef _SYS_MOUNT_H
30 /* XXX: some hack to avoid include sys/mount.h */
31 #define _SYS_MOUNT_H
32 #endif
33 #endif
34
35 #include <sys/vfs.h>
36
37 #ifdef FS_PROJINHERIT_FL
38 #define ZFS_PROJINHERIT_FL FS_PROJINHERIT_FL
39 #else
40 #define ZFS_PROJINHERIT_FL 0x20000000
41 #endif
42
43 #ifdef FS_IOC_FSGETXATTR
44 typedef struct fsxattr zfsxattr_t;
45
46 #define ZFS_IOC_FSGETXATTR FS_IOC_FSGETXATTR
47 #define ZFS_IOC_FSSETXATTR FS_IOC_FSSETXATTR
48 #else
49 struct zfsxattr {
50 uint32_t fsx_xflags; /* xflags field value (get/set) */
51 uint32_t fsx_extsize; /* extsize field value (get/set) */
52 uint32_t fsx_nextents; /* nextents field value (get) */
53 uint32_t fsx_projid; /* project identifier (get/set) */
54 uint32_t fsx_cowextsize;
55 unsigned char fsx_pad[8];
56 };
57 typedef struct zfsxattr zfsxattr_t;
58
59 #define ZFS_IOC_FSGETXATTR _IOR('X', 31, zfsxattr_t)
60 #define ZFS_IOC_FSSETXATTR _IOW('X', 32, zfsxattr_t)
61 #endif
62
63 #define ZFS_DEFAULT_PROJID (0ULL)
64 /*
65 * It is NOT ondisk project ID value. Just means either the object has
66 * no project ID or the operation does not touch project ID attribute.
67 */
68 #define ZFS_INVALID_PROJID (-1ULL)
69
70 static inline boolean_t
zpl_is_valid_projid(uint32_t projid)71 zpl_is_valid_projid(uint32_t projid)
72 {
73 /*
74 * zfsxattr::fsx_projid is 32-bits, when convert to uint64_t,
75 * the higher 32-bits will be set as zero, so cannot directly
76 * compare with ZFS_INVALID_PROJID (-1ULL)
77 */
78 if ((uint32_t)ZFS_INVALID_PROJID == projid)
79 return (B_FALSE);
80 return (B_TRUE);
81 }
82
83 #endif /* _SYS_ZFS_PROJECT_H */
84