1 /*        $NetBSD: ufs_inode.h,v 1.5 2013/01/30 19:19:19 christos Exp $         */
2 /* From:  NetBSD: inode.h,v 1.27 2001/12/18 10:57:23 fvdl Exp $ */
3 
4 /*
5  * Copyright (c) 1982, 1989, 1993
6  *        The Regents of the University of California.  All rights reserved.
7  * (c) UNIX System Laboratories, Inc.
8  * All or some portions of this file are derived from material licensed
9  * to the University of California by American Telephone and Telegraph
10  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
11  * the permission of UNIX System Laboratories, Inc.
12  *
13  * Redistribution and use in source and binary forms, with or without
14  * modification, are permitted provided that the following conditions
15  * are met:
16  * 1. Redistributions of source code must retain the above copyright
17  *    notice, this list of conditions and the following disclaimer.
18  * 2. Redistributions in binary form must reproduce the above copyright
19  *    notice, this list of conditions and the following disclaimer in the
20  *    documentation and/or other materials provided with the distribution.
21  * 3. Neither the name of the University nor the names of its contributors
22  *    may be used to endorse or promote products derived from this software
23  *    without specific prior written permission.
24  *
25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35  * SUCH DAMAGE.
36  *
37  *        @(#)inode.h         8.9 (Berkeley) 5/14/95
38  */
39 
40 union dinode {
41           struct ufs1_dinode ffs1_din;
42           struct ufs2_dinode ffs2_din;
43 };
44 
45 struct inode {
46           ino_t               i_number; /* The identity of the inode. */
47           struct vnode        *i_devvp; /* device vnode for block I/O */
48           struct fs *i_fs;              /* File system */
49           union dinode        i_din;
50           uint64_t  i_size;
51 };
52 
53 #define   i_ffs1_atime                  i_din.ffs1_din.di_atime
54 #define   i_ffs1_atimensec    i_din.ffs1_din.di_atimensec
55 #define   i_ffs1_blocks                 i_din.ffs1_din.di_blocks
56 #define   i_ffs1_ctime                  i_din.ffs1_din.di_ctime
57 #define   i_ffs1_ctimensec    i_din.ffs1_din.di_ctimensec
58 #define   i_ffs1_db           i_din.ffs1_din.di_db
59 #define   i_ffs1_flags                  i_din.ffs1_din.di_flags
60 #define   i_ffs1_gen                    i_din.ffs1_din.di_gen
61 #define   i_ffs11_gid                   i_din.ffs1_din.di_gid
62 #define   i_ffs1_ib           i_din.ffs1_din.di_ib
63 #define   i_ffs1_mode                   i_din.ffs1_din.di_mode
64 #define   i_ffs1_mtime                  i_din.ffs1_din.di_mtime
65 #define   i_ffs1_mtimensec    i_din.ffs1_din.di_mtimensec
66 #define   i_ffs1_nlink                  i_din.ffs1_din.di_nlink
67 #define   i_ffs1_rdev                   i_din.ffs1_din.di_rdev
68 #define   i_ffs1_shortlink    i_din.ffs1_din.db
69 #define   i_ffs1_size                   i_din.ffs1_din.di_size
70 #define   i_ffs1_uid                    i_din.ffs1_din.di_uid
71 
72 #define   i_ffs2_atime                  i_din.ffs2_din.di_atime
73 #define   i_ffs2_atimensec    i_din.ffs2_din.di_atimensec
74 #define   i_ffs2_blocks                 i_din.ffs2_din.di_blocks
75 #define   i_ffs2_ctime                  i_din.ffs2_din.di_ctime
76 #define   i_ffs2_ctimensec    i_din.ffs2_din.di_ctimensec
77 #define   i_ffs2_birthtime    i_din.ffs2_din.di_birthtime
78 #define   i_ffs2_birthnsec    i_din.ffs2_din.di_birthnsec
79 #define   i_ffs2_db           i_din.ffs2_din.di_db
80 #define   i_ffs2_flags                  i_din.ffs2_din.di_flags
81 #define   i_ffs2_gen                    i_din.ffs2_din.di_gen
82 #define   i_ffs21_gid                   i_din.ffs2_din.di_gid
83 #define   i_ffs2_ib           i_din.ffs2_din.di_ib
84 #define   i_ffs2_mode                   i_din.ffs2_din.di_mode
85 #define   i_ffs2_mtime                  i_din.ffs2_din.di_mtime
86 #define   i_ffs2_mtimensec    i_din.ffs2_din.di_mtimensec
87 #define   i_ffs2_nlink                  i_din.ffs2_din.di_nlink
88 #define   i_ffs2_rdev                   i_din.ffs2_din.di_rdev
89 #define   i_ffs2_shortlink    i_din.ffs2_din.db
90 #define   i_ffs2_size                   i_din.ffs2_din.di_size
91 #define   i_ffs2_uid                    i_din.ffs2_din.di_uid
92 
93 #undef DIP
94 #define DIP(ip, field) \
95         (((ip)->i_fs->fs_magic == FS_UFS1_MAGIC) ? \
96         (ip)->i_ffs1_##field : (ip)->i_ffs2_##field)
97 
98 #define DIP_ASSIGN(ip, field, value)                                            \
99           do {                                                                            \
100                     if ((ip)->i_fs->fs_magic == FS_UFS1_MAGIC)                  \
101                               (ip)->i_ffs1_##field = (value);                             \
102                     else                                                                  \
103                               (ip)->i_ffs2_##field = (value);                             \
104           } while(0)
105 
106 #define DIP_ADD(ip, field, value)                                               \
107           do {                                                                            \
108                     if ((ip)->i_fs->fs_magic == FS_UFS1_MAGIC)                  \
109                               (ip)->i_ffs1_##field += (value);                  \
110                     else                                                                  \
111                               (ip)->i_ffs2_##field += (value);                  \
112           } while(0)
113