globs.c revision 293290
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 32static const char copyright[] = 33"@(#) Copyright (c) 1980, 1986, 1993\n\ 34 The Regents of the University of California. All rights reserved.\n"; 35#endif /* not lint */ 36 37#ifndef lint 38static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/14/95"; 39#endif /* not lint */ 40#endif 41#include <sys/cdefs.h> 42__FBSDID("$FreeBSD: stable/10/sbin/fsck_ffs/globs.c 293290 2016-01-07 00:40:51Z bdrewery $"); 43 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 50long readcnt[BT_NUMBUFTYPES]; 51long totalreadcnt[BT_NUMBUFTYPES]; 52struct timespec readtime[BT_NUMBUFTYPES]; 53struct timespec totalreadtime[BT_NUMBUFTYPES]; 54struct timespec startprog; 55struct bufarea sblk; /* file system superblock */ 56struct bufarea *pdirbp; /* current directory contents */ 57struct bufarea *pbp; /* current inode block */ 58ino_t cursnapshot; 59long numdirs, dirhash, listmax, inplast; 60long countdirs; /* number of directories we actually found */ 61int adjrefcnt[MIBSIZE]; /* MIB command to adjust inode reference cnt */ 62int adjblkcnt[MIBSIZE]; /* MIB command to adjust inode block count */ 63int adjndir[MIBSIZE]; /* MIB command to adjust number of directories */ 64int adjnbfree[MIBSIZE]; /* MIB command to adjust number of free blocks */ 65int adjnifree[MIBSIZE]; /* MIB command to adjust number of free inodes */ 66int adjnffree[MIBSIZE]; /* MIB command to adjust number of free frags */ 67int adjnumclusters[MIBSIZE]; /* MIB command to adjust number of free clusters */ 68int freefiles[MIBSIZE]; /* MIB command to free a set of files */ 69int freedirs[MIBSIZE]; /* MIB command to free a set of directories */ 70int freeblks[MIBSIZE]; /* MIB command to free a set of data blocks */ 71struct fsck_cmd cmd; /* sysctl file system update commands */ 72char snapname[BUFSIZ]; /* when doing snapshots, the name of the file */ 73char *cdevname; /* name of device being checked */ 74long dev_bsize; /* computed value of DEV_BSIZE */ 75long secsize; /* actual disk sector size */ 76u_int real_dev_bsize; /* actual disk sector size, not overridden */ 77char nflag; /* assume a no response */ 78char yflag; /* assume a yes response */ 79int bkgrdflag; /* use a snapshot to run on an active system */ 80int bflag; /* location of alternate super block */ 81int debug; /* output debugging info */ 82int Eflag; /* delete empty data blocks */ 83int Zflag; /* zero empty data blocks */ 84int inoopt; /* trim out unused inodes */ 85char ckclean; /* only do work if not cleanly unmounted */ 86int cvtlevel; /* convert to newer file system format */ 87int bkgrdcheck; /* determine if background check is possible */ 88int bkgrdsumadj; /* whether the kernel have ability to adjust superblock summary */ 89char usedsoftdep; /* just fix soft dependency inconsistencies */ 90char preen; /* just fix normal inconsistencies */ 91char rerun; /* rerun fsck. Only used in non-preen mode */ 92int returntosingle; /* 1 => return to single user mode on exit */ 93char resolved; /* cleared if unresolved changes => not clean */ 94char havesb; /* superblock has been read */ 95char skipclean; /* skip clean file systems if preening */ 96int fsmodified; /* 1 => write done to file system */ 97int fsreadfd; /* file descriptor for reading file system */ 98int fswritefd; /* file descriptor for writing file system */ 99int surrender; /* Give up if reads fail */ 100int wantrestart; /* Restart fsck on early termination */ 101ufs2_daddr_t maxfsblock; /* number of blocks in the file system */ 102char *blockmap; /* ptr to primary blk allocation map */ 103ino_t maxino; /* number of inodes in file system */ 104ino_t lfdir; /* lost & found directory inode number */ 105const char *lfname; /* lost & found directory name */ 106int lfmode; /* lost & found directory creation mode */ 107ufs2_daddr_t n_blks; /* number of blocks in use */ 108ino_t n_files; /* number of files in use */ 109volatile sig_atomic_t got_siginfo; /* received a SIGINFO */ 110volatile sig_atomic_t got_sigalarm; /* received a SIGALRM */ 111struct ufs1_dinode ufs1_zino; 112struct ufs2_dinode ufs2_zino; 113 114void 115fsckinit(void) 116{ 117 bzero(readcnt, sizeof(long) * BT_NUMBUFTYPES); 118 bzero(totalreadcnt, sizeof(long) * BT_NUMBUFTYPES); 119 bzero(readtime, sizeof(struct timespec) * BT_NUMBUFTYPES); 120 bzero(totalreadtime, sizeof(struct timespec) * BT_NUMBUFTYPES); 121 bzero(&startprog, sizeof(struct timespec));; 122 bzero(&sblk, sizeof(struct bufarea)); 123 pdirbp = NULL; 124 pbp = NULL; 125 cursnapshot = 0; 126 numdirs = dirhash = listmax = inplast = 0; 127 countdirs = 0; 128 bzero(adjrefcnt, sizeof(int) * MIBSIZE); 129 bzero(adjblkcnt, sizeof(int) * MIBSIZE); 130 bzero(adjndir, sizeof(int) * MIBSIZE); 131 bzero(adjnbfree, sizeof(int) * MIBSIZE); 132 bzero(adjnifree, sizeof(int) * MIBSIZE); 133 bzero(adjnffree, sizeof(int) * MIBSIZE); 134 bzero(adjnumclusters, sizeof(int) * MIBSIZE); 135 bzero(freefiles, sizeof(int) * MIBSIZE); 136 bzero(freedirs, sizeof(int) * MIBSIZE); 137 bzero(freeblks, sizeof(int) * MIBSIZE); 138 bzero(&cmd, sizeof(struct fsck_cmd)); 139 bzero(snapname, sizeof(char) * BUFSIZ); 140 cdevname = NULL; 141 dev_bsize = 0; 142 secsize = 0; 143 real_dev_bsize = 0; 144 bkgrdsumadj = 0; 145 usedsoftdep = 0; 146 rerun = 0; 147 returntosingle = 0; 148 resolved = 0; 149 havesb = 0; 150 fsmodified = 0; 151 fsreadfd = 0; 152 fswritefd = 0; 153 maxfsblock = 0; 154 blockmap = NULL; 155 maxino = 0; 156 lfdir = 0; 157 lfname = "lost+found"; 158 lfmode = 0700; 159 n_blks = 0; 160 n_files = 0; 161 got_siginfo = 0; 162 got_sigalarm = 0; 163 bzero(&ufs1_zino, sizeof(struct ufs1_dinode)); 164 bzero(&ufs2_zino, sizeof(struct ufs2_dinode)); 165} 166