1/*
2 * Copyright (c) 1980, 1986, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#if 0
31#ifndef lint
32static const char sccsid[] = "@(#)pass3.c	8.2 (Berkeley) 4/27/95";
33#endif /* not lint */
34#endif
35#include <sys/cdefs.h>
36__FBSDID("$FreeBSD$");
37
38#include <sys/param.h>
39
40#include <ufs/ufs/dinode.h>
41#include <ufs/ufs/dir.h>
42#include <ufs/ffs/fs.h>
43
44#include <string.h>
45
46#include "fsck.h"
47
48void
49pass3(void)
50{
51	struct inoinfo *inp;
52	int loopcnt, inpindex, state;
53	ino_t orphan;
54	struct inodesc idesc;
55	char namebuf[MAXNAMLEN+1];
56
57	for (inpindex = inplast - 1; inpindex >= 0; inpindex--) {
58		if (got_siginfo) {
59			printf("%s: phase 3: dir %d of %d (%d%%)\n", cdevname,
60			    (int)(inplast - inpindex - 1), (int)inplast,
61			    (int)((inplast - inpindex - 1) * 100 / inplast));
62			got_siginfo = 0;
63		}
64		if (got_sigalarm) {
65			setproctitle("%s p3 %d%%", cdevname,
66			    (int)((inplast - inpindex - 1) * 100 / inplast));
67			got_sigalarm = 0;
68		}
69		inp = inpsort[inpindex];
70		state = inoinfo(inp->i_number)->ino_state;
71		if (inp->i_number == ROOTINO ||
72		    (inp->i_parent != 0 && !S_IS_DUNFOUND(state)))
73			continue;
74		if (state == DCLEAR)
75			continue;
76		/*
77		 * If we are running with soft updates and we come
78		 * across unreferenced directories, we just leave
79		 * them in DSTATE which will cause them to be pitched
80		 * in pass 4.
81		 */
82		if ((preen || bkgrdflag) &&
83		    resolved && usedsoftdep && S_IS_DUNFOUND(state)) {
84			if (inp->i_dotdot >= ROOTINO)
85				inoinfo(inp->i_dotdot)->ino_linkcnt++;
86			continue;
87		}
88		for (loopcnt = 0; ; loopcnt++) {
89			orphan = inp->i_number;
90			if (inp->i_parent == 0 ||
91			    !INO_IS_DUNFOUND(inp->i_parent) ||
92			    loopcnt > countdirs)
93				break;
94			inp = getinoinfo(inp->i_parent);
95		}
96		if (loopcnt <= countdirs) {
97			if (linkup(orphan, inp->i_dotdot, NULL)) {
98				inp->i_parent = inp->i_dotdot = lfdir;
99				inoinfo(lfdir)->ino_linkcnt--;
100			}
101			inoinfo(orphan)->ino_state = DFOUND;
102			propagate();
103			continue;
104		}
105		pfatal("ORPHANED DIRECTORY LOOP DETECTED I=%lu",
106		    (u_long)orphan);
107		if (reply("RECONNECT") == 0)
108			continue;
109		memset(&idesc, 0, sizeof(struct inodesc));
110		idesc.id_type = DATA;
111		idesc.id_number = inp->i_parent;
112		idesc.id_parent = orphan;
113		idesc.id_func = findname;
114		idesc.id_name = namebuf;
115		if ((ckinode(ginode(inp->i_parent), &idesc) & FOUND) == 0)
116			pfatal("COULD NOT FIND NAME IN PARENT DIRECTORY");
117		if (linkup(orphan, inp->i_parent, namebuf)) {
118			idesc.id_func = clearentry;
119			if (ckinode(ginode(inp->i_parent), &idesc) & FOUND)
120				inoinfo(orphan)->ino_linkcnt++;
121			inp->i_parent = inp->i_dotdot = lfdir;
122			inoinfo(lfdir)->ino_linkcnt--;
123		}
124		inoinfo(orphan)->ino_state = DFOUND;
125		propagate();
126	}
127}
128