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Fix fsck_ffs Pass 1b error exit "bad inode number 256 to nextinode".
[FreeBSD/FreeBSD.git] / sbin / fsck_ffs / pass1b.c
1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
3  *
4  * Copyright (c) 1980, 1986, 1993
5  *      The Regents of the University of California.  All rights reserved.
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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
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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
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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 #if 0
33 #ifndef lint
34 static const char sccsid[] = "@(#)pass1b.c      8.4 (Berkeley) 4/28/95";
35 #endif /* not lint */
36 #endif
37 #include <sys/cdefs.h>
38 __FBSDID("$FreeBSD$");
39
40 #include <sys/param.h>
41
42 #include <ufs/ufs/dinode.h>
43 #include <ufs/ffs/fs.h>
44
45 #include <string.h>
46
47 #include "fsck.h"
48
49 static  struct dups *duphead;
50 static int pass1bcheck(struct inodesc *);
51
52 void
53 pass1b(void)
54 {
55         int c, i;
56         union dinode *dp;
57         struct inodesc idesc;
58         ino_t inumber, inosused;
59
60         memset(&idesc, 0, sizeof(struct inodesc));
61         idesc.id_func = pass1bcheck;
62         duphead = duplist;
63         for (c = 0; c < sblock.fs_ncg; c++) {
64                 if (got_siginfo) {
65                         printf("%s: phase 1b: cyl group %d of %d (%d%%)\n",
66                             cdevname, c, sblock.fs_ncg,
67                             c * 100 / sblock.fs_ncg);
68                         got_siginfo = 0;
69                 }
70                 if (got_sigalarm) {
71                         setproctitle("%s p1b %d%%", cdevname,
72                             c * 100 / sblock.fs_ncg);
73                         got_sigalarm = 0;
74                 }
75                 inosused = inostathead[c].il_numalloced;
76                 if (inosused == 0)
77                         continue;
78                 setinodebuf(c, inosused);
79                 inumber = c * sblock.fs_ipg;
80                 for (i = 0; i < inosused; i++, inumber++) {
81                         if (inumber < UFS_ROOTINO) {
82                                 (void)getnextinode(inumber, 0);
83                                 continue;
84                         }
85                         dp = getnextinode(inumber, 0);
86                         idesc.id_number = inumber;
87                         idesc.id_type = inoinfo(inumber)->ino_idtype;
88                         if (inoinfo(inumber)->ino_state != USTATE &&
89                             (ckinode(dp, &idesc) & STOP)) {
90                                 rerun = 1;
91                                 return;
92                         }
93                 }
94         }
95 }
96
97 static int
98 pass1bcheck(struct inodesc *idesc)
99 {
100         struct dups *dlp;
101         int nfrags, res = KEEPON;
102         ufs2_daddr_t blkno = idesc->id_blkno;
103
104         for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) {
105                 if (chkrange(blkno, 1))
106                         res = SKIP;
107                 for (dlp = duphead; dlp; dlp = dlp->next) {
108                         if (dlp->dup == blkno) {
109                                 blkerror(idesc->id_number, "DUP", blkno);
110                                 dlp->dup = duphead->dup;
111                                 duphead->dup = blkno;
112                                 duphead = duphead->next;
113                         }
114                         if (dlp == muldup)
115                                 break;
116                 }
117                 if (muldup == NULL || duphead == muldup->next) {
118                         rerun = 1;
119                         return (STOP);
120                 }
121         }
122         return (res);
123 }