1/*	$NetBSD$	*/
2
3/*-
4 * Copyright (c) 2011 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by UCHIYAMA Yasushi.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _V7FS_INODE_H_
33#define	_V7FS_INODE_H_
34
35/* Software implementation of inode. (memory image) */
36struct v7fs_inode {
37	v7fs_ino_t inode_number;	/* inode location */
38	/* attr */
39	uint16_t mode;
40	int16_t nlink;
41	int16_t uid;
42	int16_t gid;
43	v7fs_time_t atime;
44	v7fs_time_t mtime;
45	v7fs_time_t ctime;
46	/* open mode */
47	bool append_mode;
48
49	v7fs_dev_t device;	/* for special file.(cdev, bdev) */
50	/* payload. */
51	v7fs_off_t filesize;	/* size of file (byte) */
52	v7fs_daddr_t addr[V7FS_NADDR];	/* data block address list */
53};
54
55#define	v7fs_inode_filesize(i)	((i)->filesize)
56#define	v7fs_inode_allocated(i)	((i)->mode)
57#define	v7fs_inode_nlink(i)	((i)->nlink)
58/* V7 original */
59#define	v7fs_inode_isdir(i)	(((i)->mode & V7FS_IFMT) == V7FS_IFDIR)
60#define	v7fs_inode_isfile(i)	(((i)->mode & V7FS_IFMT) == V7FS_IFREG)
61#define	v7fs_inode_iscdev(i)	(((i)->mode & V7FS_IFMT) == V7FS_IFCHR)
62#define	v7fs_inode_isbdev(i)	(((i)->mode & V7FS_IFMT) == V7FS_IFBLK)
63/* 2BSD extension (implementation is different) */
64#define	v7fs_inode_islnk(i)	(((i)->mode & V7FS_IFMT) == V7FSBSD_IFLNK)
65#define	v7fs_inode_issock(i)	(((i)->mode & V7FS_IFMT) == V7FSBSD_IFSOCK)
66/* NetBSD Extension */
67#define	v7fs_inode_isfifo(i)	(((i)->mode & V7FS_IFMT) == V7FSBSD_IFFIFO)
68
69__BEGIN_DECLS
70/* Free inode access ops. */
71int v7fs_inode_allocate(struct v7fs_self *, v7fs_ino_t *);
72void v7fs_inode_deallocate(struct v7fs_self *, v7fs_ino_t);
73
74/* Disk I/O ops. */
75int v7fs_inode_load(struct v7fs_self *, struct v7fs_inode *, v7fs_ino_t);
76int v7fs_inode_writeback(struct v7fs_self *, struct v7fs_inode *);
77void v7fs_inode_setup_memory_image(const struct v7fs_self *,
78    struct v7fs_inode *, struct v7fs_inode_diskimage *);
79
80/* Check. */
81int v7fs_inode_number_sanity(const struct v7fs_superblock *, v7fs_ino_t);
82
83/* Util. */
84void v7fs_inode_chmod(struct v7fs_inode *, v7fs_mode_t);
85void v7fs_inode_dump(const struct v7fs_inode *);
86
87/* Loop over all inode in ilist. */
88int v7fs_ilist_foreach(struct v7fs_self *, int (*)(struct v7fs_self *, void *,
89	struct v7fs_inode *, v7fs_ino_t), void *);
90__END_DECLS
91#endif /*!_V7FS_INODE_H_ */
92