1/*	$NetBSD: pass1b.c,v 1.7 2009/04/06 12:50:37 lukem Exp $	*/
2
3/*
4 * Copyright (c) 1980, 1986, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32/*
33 * Copyright (c) 1997 Manuel Bouyer.
34 *
35 * Redistribution and use in source and binary forms, with or without
36 * modification, are permitted provided that the following conditions
37 * are met:
38 * 1. Redistributions of source code must retain the above copyright
39 *    notice, this list of conditions and the following disclaimer.
40 * 2. Redistributions in binary form must reproduce the above copyright
41 *    notice, this list of conditions and the following disclaimer in the
42 *    documentation and/or other materials provided with the distribution.
43 *
44 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
45 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
46 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
47 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
48 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
49 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
50 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
51 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
52 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
53 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
54 */
55
56#include <sys/cdefs.h>
57#ifndef lint
58#if 0
59static char sccsid[] = "@(#)pass1b.c	8.1 (Berkeley) 6/5/93";
60#else
61__RCSID("$NetBSD: pass1b.c,v 1.7 2009/04/06 12:50:37 lukem Exp $");
62#endif
63#endif /* not lint */
64
65#include <sys/param.h>
66#include <sys/time.h>
67#include <ufs/ext2fs/ext2fs_dinode.h>
68#include <ufs/ext2fs/ext2fs.h>
69
70#include <string.h>
71#include "fsck.h"
72#include "extern.h"
73
74static int	pass1bcheck(struct inodesc *);
75static struct	dups *duphead;
76
77void
78pass1b(void)
79{
80	int c;
81	uint32_t i;
82	struct ext2fs_dinode *dp;
83	struct inodesc idesc;
84	ino_t inumber;
85
86	memset(&idesc, 0, sizeof(struct inodesc));
87	idesc.id_type = ADDR;
88	idesc.id_func = pass1bcheck;
89	duphead = duplist;
90	inumber = 0;
91	for (c = 0; c < sblock.e2fs_ncg; c++) {
92		for (i = 0; i < sblock.e2fs.e2fs_ipg; i++, inumber++) {
93			if ((inumber < EXT2_FIRSTINO) && (inumber != EXT2_ROOTINO))
94				continue;
95			dp = ginode(inumber);
96			if (dp == NULL)
97				continue;
98			idesc.id_number = inumber;
99			if (statemap[inumber] != USTATE &&
100			    (ckinode(dp, &idesc) & STOP))
101				return;
102		}
103	}
104}
105
106static int
107pass1bcheck(struct inodesc *idesc)
108{
109	struct dups *dlp;
110	int nfrags, res = KEEPON;
111	daddr_t blkno = idesc->id_blkno;
112
113	for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) {
114		if (chkrange(blkno, 1))
115			res = SKIP;
116		for (dlp = duphead; dlp; dlp = dlp->next) {
117			if (dlp->dup == blkno) {
118				blkerror(idesc->id_number, "DUP", blkno);
119				dlp->dup = duphead->dup;
120				duphead->dup = blkno;
121				duphead = duphead->next;
122			}
123			if (dlp == muldup)
124				break;
125		}
126		if (muldup == 0 || duphead == muldup->next)
127			return (STOP);
128	}
129	return (res);
130}
131