1/*
2 *  GRUB  --  GRand Unified Bootloader
3 *  Copyright (C) 1999,2000,2001,2002,2003,2004  Free Software Foundation, Inc.
4 *
5 *  This program is free software; you can redistribute it and/or modify
6 *  it under the terms of the GNU General Public License as published by
7 *  the Free Software Foundation; either version 2 of the License, or
8 *  (at your option) any later version.
9 *
10 *  This program is distributed in the hope that it will be useful,
11 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 *  GNU General Public License for more details.
14 *
15 *  You should have received a copy of the GNU General Public License
16 *  along with this program; if not, write to the Free Software
17 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 */
19/*
20 * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
21 * Use is subject to license terms.
22 */
23
24#ifndef	_SYS_FS_ZFS_ZNODE_H
25#define	_SYS_FS_ZFS_ZNODE_H
26
27#define	MASTER_NODE_OBJ	1
28#define	ZFS_ROOT_OBJ		"ROOT"
29#define	ZPL_VERSION_STR		"VERSION"
30#define	ZFS_SA_ATTRS		"SA_ATTRS"
31
32#define	ZPL_VERSION		5ULL
33
34#define	ZFS_DIRENT_OBJ(de) BF64_GET(de, 0, 48)
35
36/*
37 * This is the persistent portion of the znode.  It is stored
38 * in the "bonus buffer" of the file.  Short symbolic links
39 * are also stored in the bonus buffer.
40 */
41typedef struct znode_phys {
42	uint64_t zp_atime[2];		/*  0 - last file access time */
43	uint64_t zp_mtime[2];		/* 16 - last file modification time */
44	uint64_t zp_ctime[2];		/* 32 - last file change time */
45	uint64_t zp_crtime[2];		/* 48 - creation time */
46	uint64_t zp_gen;		/* 64 - generation (txg of creation) */
47	uint64_t zp_mode;		/* 72 - file mode bits */
48	uint64_t zp_size;		/* 80 - size of file */
49	uint64_t zp_parent;		/* 88 - directory parent (`..') */
50	uint64_t zp_links;		/* 96 - number of links to file */
51	uint64_t zp_xattr;		/* 104 - DMU object for xattrs */
52	uint64_t zp_rdev;		/* 112 - dev_t for VBLK & VCHR files */
53	uint64_t zp_flags;		/* 120 - persistent flags */
54	uint64_t zp_uid;		/* 128 - file owner */
55	uint64_t zp_gid;		/* 136 - owning group */
56	uint64_t zp_pad[4];		/* 144 - future */
57	zfs_znode_acl_t zp_acl;		/* 176 - 263 ACL */
58	/*
59	 * Data may pad out any remaining bytes in the znode buffer, eg:
60	 *
61	 * |<---------------------- dnode_phys (512) ------------------------>|
62	 * |<-- dnode (192) --->|<----------- "bonus" buffer (320) ---------->|
63	 *			|<---- znode (264) ---->|<---- data (56) ---->|
64	 *
65	 * At present, we only use this space to store symbolic links.
66	 */
67} znode_phys_t;
68
69#endif	/* _SYS_FS_ZFS_ZNODE_H */
70