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 */
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
44typedef struct fsxattr zfsxattr_t;
45
46#define	ZFS_IOC_FSGETXATTR	FS_IOC_FSGETXATTR
47#define	ZFS_IOC_FSSETXATTR	FS_IOC_FSSETXATTR
48#else
49struct 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};
57typedef 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
70static inline boolean_t
71zpl_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