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