1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2002 Juli Mallett.  All rights reserved.
5 *
6 * This software was written by Juli Mallett <jmallett@FreeBSD.org> for the
7 * FreeBSD project.  Redistribution and use in source and binary forms, with
8 * or without modification, are permitted provided that the following
9 * conditions are met:
10 *
11 * 1. Redistribution of source code must retain the above copyright notice,
12 *    this list of conditions and the following disclaimer.
13 * 2. Redistribution in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
21 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
23 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
25 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
26 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 * POSSIBILITY OF SUCH DAMAGE.
28 */
29
30#include <sys/param.h>
31#include <sys/mount.h>
32#include <sys/disklabel.h>
33#include <sys/stat.h>
34
35#include <ufs/ufs/extattr.h>
36#include <ufs/ufs/quota.h>
37#include <ufs/ufs/ufsmount.h>
38#include <ufs/ufs/dinode.h>
39#include <ufs/ffs/fs.h>
40
41#include <errno.h>
42#include <fcntl.h>
43#include <stdio.h>
44#include <stdlib.h>
45#include <string.h>
46#include <unistd.h>
47
48#include <libufs.h>
49
50int
51getinode(struct uufsd *disk, union dinodep *dp, ino_t inum)
52{
53	ino_t min, max;
54	caddr_t inoblock;
55	struct fs *fs;
56
57	ERROR(disk, NULL);
58
59	fs = &disk->d_fs;
60	if (inum >= (ino_t)fs->fs_ipg * fs->fs_ncg) {
61		ERROR(disk, "inode number out of range");
62		return (-1);
63	}
64	inoblock = (caddr_t)&disk->d_inos[0];
65	min = disk->d_inomin;
66	max = disk->d_inomax;
67
68	if (inum >= min && inum < max)
69		goto gotit;
70	bread(disk, fsbtodb(fs, ino_to_fsba(fs, inum)), inoblock,
71	    fs->fs_bsize);
72	disk->d_inomin = min = inum - (inum % INOPB(fs));
73	disk->d_inomax = max = min + INOPB(fs);
74gotit:	switch (disk->d_ufs) {
75	case 1:
76		disk->d_dp.dp1 = &((struct ufs1_dinode *)inoblock)[inum - min];
77		if (dp != NULL)
78			*dp = disk->d_dp;
79		return (0);
80	case 2:
81		disk->d_dp.dp2 = &((struct ufs2_dinode *)inoblock)[inum - min];
82		if (dp != NULL)
83			*dp = disk->d_dp;
84		if (ffs_verify_dinode_ckhash(fs, disk->d_dp.dp2) == 0)
85			return (0);
86		ERROR(disk, "check-hash failed for inode read from disk");
87		return (-1);
88	default:
89		break;
90	}
91	ERROR(disk, "unknown UFS filesystem type");
92	return (-1);
93}
94
95int
96putinode(struct uufsd *disk)
97{
98	struct fs *fs;
99
100	fs = &disk->d_fs;
101	if (disk->d_ufs == 2)
102		ffs_update_dinode_ckhash(fs, disk->d_dp.dp2);
103	if (bwrite(disk, fsbtodb(fs, ino_to_fsba(&disk->d_fs, disk->d_inomin)),
104	    (caddr_t)&disk->d_inos[0], disk->d_fs.fs_bsize) <= 0)
105		return (-1);
106	return (0);
107}
108