1 /* $NetBSD: pass3.c,v 1.21 2013/01/22 09:39:12 dholland 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 #include <sys/cdefs.h>
33 #ifndef lint
34 #if 0
35 static char sccsid[] = "@(#)pass3.c 8.2 (Berkeley) 4/27/95";
36 #else
37 __RCSID("$NetBSD: pass3.c,v 1.21 2013/01/22 09:39:12 dholland Exp $");
38 #endif
39 #endif /* not lint */
40
41 #include <sys/param.h>
42 #include <sys/time.h>
43 #include <string.h>
44
45 #include <ufs/ufs/dinode.h>
46 #include <ufs/ffs/fs.h>
47
48 #include <dirent.h>
49
50 #include "fsck.h"
51 #include "extern.h"
52 #include "fsutil.h"
53
54 void
pass3(void)55 pass3(void)
56 {
57 struct inoinfo *inp, **inpp;
58 int loopcnt, state;
59 ino_t orphan;
60 struct inodesc idesc;
61 char namebuf[MAXNAMLEN+1];
62 union dinode *dp;
63
64 for (inpp = &inpsort[inplast - 1]; inpp >= inpsort; inpp--) {
65 int inpindex = inpp - inpsort;
66 if (got_siginfo) {
67 fprintf(stderr,
68 "%s: phase 3: dir %d of %d (%d%%)\n", cdevname(),
69 (int)(inplast - inpindex - 1), (int)inplast,
70 (int)((inplast - inpindex - 1) * 100 / inplast));
71 got_siginfo = 0;
72 }
73 #ifdef PROGRESS
74 progress_bar(cdevname(), preen ? NULL : "phase 3",
75 inplast - inpindex - 1, inplast);
76 #endif /* PROGRESS */
77 inp = *inpp;
78 state = inoinfo(inp->i_number)->ino_state;
79 if (inp->i_number == UFS_ROOTINO ||
80 (inp->i_parent != 0 && state != DSTATE))
81 continue;
82 if (state == DCLEAR)
83 continue;
84 /*
85 * If we are running with soft updates and we come
86 * across unreferenced directories, we just leave
87 * them in DSTATE which will cause them to be pitched
88 * in pass 4.
89 */
90 if (preen &&
91 resolved && usedsoftdep && state == DSTATE) {
92 if (inp->i_dotdot >= UFS_ROOTINO)
93 inoinfo(inp->i_dotdot)->ino_linkcnt++;
94 continue;
95 }
96 for (loopcnt = 0; ; loopcnt++) {
97 orphan = inp->i_number;
98 if (inp->i_parent == 0 ||
99 inoinfo(inp->i_parent)->ino_state != DSTATE ||
100 loopcnt > countdirs)
101 break;
102 inp = getinoinfo(inp->i_parent);
103 }
104 if (loopcnt <= countdirs) {
105 if (linkup(orphan, inp->i_dotdot, NULL))
106 inoinfo(lfdir)->ino_linkcnt--;
107 continue;
108 }
109 pfatal("ORPHANED DIRECTORY LOOP DETECTED I=%lu",
110 (u_long)orphan);
111 if (reply("RECONNECT") == 0)
112 continue;
113 dp = ginode(inp->i_parent);
114 memset(&idesc, 0, sizeof(struct inodesc));
115 idesc.id_type = DATA;
116 idesc.id_number = inp->i_parent;
117 idesc.id_parent = orphan;
118 idesc.id_func = findname;
119 idesc.id_name = namebuf;
120 idesc.id_uid = iswap32(DIP(dp, uid));
121 idesc.id_gid = iswap32(DIP(dp, gid));
122 if ((ckinode(dp, &idesc) & FOUND) == 0)
123 pfatal("COULD NOT FIND NAME IN PARENT DIRECTORY");
124 if (linkup(orphan, inp->i_parent, namebuf)) {
125 idesc.id_func = clearentry;
126 if (ckinode(ginode(inp->i_parent), &idesc) & FOUND)
127 inoinfo(orphan)->ino_linkcnt++;
128 inoinfo(lfdir)->ino_linkcnt--;
129 }
130 }
131 #ifdef PROGRESS
132 if (!preen)
133 progress_done();
134 #endif /* PROGRESS */
135 }
136