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.
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 #if 0
33 #ifndef lint
34 static const char copyright[] =
35 "@(#) Copyright (c) 1980, 1986, 1993\n\
36 The Regents of the University of California. All rights reserved.\n";
37 #endif /* not lint */
38
39 #ifndef lint
40 static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/14/95";
41 #endif /* not lint */
42 #endif
43 #include <sys/cdefs.h>
44 #include <sys/param.h>
45 #include <ufs/ufs/dinode.h>
46 #include <ufs/ffs/fs.h>
47 #include <string.h>
48 #include "fsck.h"
49
50 long readcnt[BT_NUMBUFTYPES];
51 long totalreadcnt[BT_NUMBUFTYPES];
52 struct timespec readtime[BT_NUMBUFTYPES];
53 struct timespec totalreadtime[BT_NUMBUFTYPES];
54 struct timespec startprog;
55 struct bufarea sblk; /* file system superblock */
56 struct bufarea *pdirbp; /* current directory contents */
57 ino_t cursnapshot;
58 long dirhash, inplast;
59 unsigned long numdirs, listmax;
60 long countdirs; /* number of directories we actually found */
61 int adjrefcnt[MIBSIZE]; /* MIB cmd to adjust inode reference cnt */
62 int adjblkcnt[MIBSIZE]; /* MIB cmd to adjust inode block count */
63 int setsize[MIBSIZE]; /* MIB cmd to set inode size */
64 int adjndir[MIBSIZE]; /* MIB cmd to adjust number of directories */
65 int adjnbfree[MIBSIZE]; /* MIB cmd to adjust number of free blocks */
66 int adjnifree[MIBSIZE]; /* MIB cmd to adjust number of free inodes */
67 int adjnffree[MIBSIZE]; /* MIB cmd to adjust number of free frags */
68 int adjnumclusters[MIBSIZE]; /* MIB cmd to adjust number of free clusters */
69 int adjdepth[MIBSIZE]; /* MIB cmd to adjust directory depth count */
70 int freefiles[MIBSIZE]; /* MIB cmd to free a set of files */
71 int freedirs[MIBSIZE]; /* MIB cmd to free a set of directories */
72 int freeblks[MIBSIZE]; /* MIB cmd to free a set of data blocks */
73 struct fsck_cmd cmd; /* sysctl file system update commands */
74 char *cdevname; /* name of device being checked */
75 long dev_bsize; /* computed value of DEV_BSIZE */
76 long secsize; /* actual disk sector size */
77 u_int real_dev_bsize; /* actual disk sector size, not overridden */
78 char nflag; /* assume a no response */
79 char yflag; /* assume a yes response */
80 int bkgrdflag; /* use a snapshot to run on an active system */
81 off_t bflag; /* location of alternate super block */
82 int debug; /* output debugging info */
83 int Eflag; /* delete empty data blocks */
84 int Zflag; /* zero empty data blocks */
85 int zflag; /* zero unused directory space */
86 int inoopt; /* trim out unused inodes */
87 char ckclean; /* only do work if not cleanly unmounted */
88 int cvtlevel; /* convert to newer file system format */
89 int ckhashadd; /* check hashes to be added */
90 int bkgrdcheck; /* determine if background check is possible */
91 int bkgrdsumadj; /* kernel able to adjust superblock summary */
92 char usedsoftdep; /* just fix soft dependency inconsistencies */
93 char preen; /* just fix normal inconsistencies */
94 char rerun; /* rerun fsck. Only used in non-preen mode */
95 int returntosingle; /* 1 => return to single user mode on exit */
96 char resolved; /* cleared if unresolved changes => not clean */
97 int sbhashfailed; /* when reading superblock check hash failed */
98 char havesb; /* superblock has been read */
99 char skipclean; /* skip clean file systems if preening */
100 int fsmodified; /* 1 => write done to file system */
101 int fsreadfd; /* file descriptor for reading file system */
102 int fswritefd; /* file descriptor for writing file system */
103 int surrender; /* Give up if reads fail */
104 int wantrestart; /* Restart fsck on early termination */
105 ufs2_daddr_t maxfsblock; /* number of blocks in the file system */
106 char *blockmap; /* ptr to primary blk allocation map */
107 ino_t maxino; /* number of inodes in file system */
108 ino_t lfdir; /* lost & found directory inode number */
109 const char *lfname; /* lost & found directory name */
110 int lfmode; /* lost & found directory creation mode */
111 ufs2_daddr_t n_blks; /* number of blocks in use */
112 int cgheader_corrupt; /* one or more CG headers are corrupt */
113 ino_t n_files; /* number of files in use */
114 volatile sig_atomic_t got_siginfo; /* received a SIGINFO */
115 volatile sig_atomic_t got_sigalarm; /* received a SIGALRM */
116 union dinode zino;
117
118 struct dups *duplist;
119 struct dups *muldup;
120 struct inostatlist *inostathead;
121
122 void
fsckinit(void)123 fsckinit(void)
124 {
125 bzero(readcnt, sizeof(long) * BT_NUMBUFTYPES);
126 bzero(totalreadcnt, sizeof(long) * BT_NUMBUFTYPES);
127 bzero(readtime, sizeof(struct timespec) * BT_NUMBUFTYPES);
128 bzero(totalreadtime, sizeof(struct timespec) * BT_NUMBUFTYPES);
129 bzero(&startprog, sizeof(struct timespec));
130 bzero(&sblk, sizeof(struct bufarea));
131 cursnapshot = 0;
132 listmax = numdirs = dirhash = inplast = 0;
133 countdirs = 0;
134 bzero(adjrefcnt, sizeof(int) * MIBSIZE);
135 bzero(adjblkcnt, sizeof(int) * MIBSIZE);
136 bzero(setsize, sizeof(int) * MIBSIZE);
137 bzero(adjndir, sizeof(int) * MIBSIZE);
138 bzero(adjnbfree, sizeof(int) * MIBSIZE);
139 bzero(adjnifree, sizeof(int) * MIBSIZE);
140 bzero(adjnffree, sizeof(int) * MIBSIZE);
141 bzero(adjnumclusters, sizeof(int) * MIBSIZE);
142 bzero(adjdepth, sizeof(int) * MIBSIZE);
143 bzero(freefiles, sizeof(int) * MIBSIZE);
144 bzero(freedirs, sizeof(int) * MIBSIZE);
145 bzero(freeblks, sizeof(int) * MIBSIZE);
146 bzero(&cmd, sizeof(struct fsck_cmd));
147 cdevname = NULL;
148 dev_bsize = 0;
149 secsize = 0;
150 real_dev_bsize = 0;
151 bkgrdsumadj = 0;
152 usedsoftdep = 0;
153 rerun = 0;
154 returntosingle = 0;
155 resolved = 0;
156 havesb = 0;
157 fsmodified = 0;
158 sbhashfailed = 0;
159 fsreadfd = -1;
160 fswritefd = -1;
161 maxfsblock = 0;
162 maxino = 0;
163 lfdir = 0;
164 lfname = "lost+found";
165 lfmode = 0700;
166 n_blks = 0;
167 n_files = 0;
168 cgheader_corrupt = 0;
169 got_siginfo = 0;
170 got_sigalarm = 0;
171 bzero(&zino.dp1, sizeof(struct ufs1_dinode));
172 bzero(&zino.dp2, sizeof(struct ufs2_dinode));
173 }
174