xref: /freebsd/sbin/fsck_ffs/pass1b.c (revision fcb560670601b2a4d87bb31d7531c8dcc37ee71b)
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
32 static const char sccsid[] = "@(#)pass1b.c	8.4 (Berkeley) 4/28/95";
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/ffs/fs.h>
42 
43 #include <string.h>
44 
45 #include "fsck.h"
46 
47 static  struct dups *duphead;
48 static int pass1bcheck(struct inodesc *);
49 
50 void
51 pass1b(void)
52 {
53 	int c, i;
54 	union dinode *dp;
55 	struct inodesc idesc;
56 	ino_t inumber;
57 
58 	memset(&idesc, 0, sizeof(struct inodesc));
59 	idesc.id_type = ADDR;
60 	idesc.id_func = pass1bcheck;
61 	duphead = duplist;
62 	inumber = 0;
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 		for (i = 0; i < sblock.fs_ipg; i++, inumber++) {
76 			if (inumber < ROOTINO)
77 				continue;
78 			dp = ginode(inumber);
79 			if (dp == NULL)
80 				continue;
81 			idesc.id_number = inumber;
82 			if (inoinfo(inumber)->ino_state != USTATE &&
83 			    (ckinode(dp, &idesc) & STOP)) {
84 				rerun = 1;
85 				return;
86 			}
87 		}
88 	}
89 }
90 
91 static int
92 pass1bcheck(struct inodesc *idesc)
93 {
94 	struct dups *dlp;
95 	int nfrags, res = KEEPON;
96 	ufs2_daddr_t blkno = idesc->id_blkno;
97 
98 	for (nfrags = idesc->id_numfrags; nfrags > 0; blkno++, nfrags--) {
99 		if (chkrange(blkno, 1))
100 			res = SKIP;
101 		for (dlp = duphead; dlp; dlp = dlp->next) {
102 			if (dlp->dup == blkno) {
103 				blkerror(idesc->id_number, "DUP", blkno);
104 				dlp->dup = duphead->dup;
105 				duphead->dup = blkno;
106 				duphead = duphead->next;
107 			}
108 			if (dlp == muldup)
109 				break;
110 		}
111 		if (muldup == 0 || duphead == muldup->next) {
112 			rerun = 1;
113 			return (STOP);
114 		}
115 	}
116 	return (res);
117 }
118