18fae3551SRodney W. Grimes /* 28fae3551SRodney W. Grimes * Copyright (c) 1980, 1986, 1993 38fae3551SRodney W. Grimes * The Regents of the University of California. All rights reserved. 48fae3551SRodney W. Grimes * 58fae3551SRodney W. Grimes * Redistribution and use in source and binary forms, with or without 68fae3551SRodney W. Grimes * modification, are permitted provided that the following conditions 78fae3551SRodney W. Grimes * are met: 88fae3551SRodney W. Grimes * 1. Redistributions of source code must retain the above copyright 98fae3551SRodney W. Grimes * notice, this list of conditions and the following disclaimer. 108fae3551SRodney W. Grimes * 2. Redistributions in binary form must reproduce the above copyright 118fae3551SRodney W. Grimes * notice, this list of conditions and the following disclaimer in the 128fae3551SRodney W. Grimes * documentation and/or other materials provided with the distribution. 138fae3551SRodney W. Grimes * 4. Neither the name of the University nor the names of its contributors 148fae3551SRodney W. Grimes * may be used to endorse or promote products derived from this software 158fae3551SRodney W. Grimes * without specific prior written permission. 168fae3551SRodney W. Grimes * 178fae3551SRodney W. Grimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 188fae3551SRodney W. Grimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 198fae3551SRodney W. Grimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 208fae3551SRodney W. Grimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 218fae3551SRodney W. Grimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 228fae3551SRodney W. Grimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 238fae3551SRodney W. Grimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 248fae3551SRodney W. Grimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 258fae3551SRodney W. Grimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 268fae3551SRodney W. Grimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 278fae3551SRodney W. Grimes * SUCH DAMAGE. 288fae3551SRodney W. Grimes */ 298fae3551SRodney W. Grimes 30c69284caSDavid E. O'Brien #if 0 318fae3551SRodney W. Grimes #ifndef lint 3231f4ab50SBruce Evans static const char copyright[] = 338fae3551SRodney W. Grimes "@(#) Copyright (c) 1980, 1986, 1993\n\ 348fae3551SRodney W. Grimes The Regents of the University of California. All rights reserved.\n"; 358fae3551SRodney W. Grimes #endif /* not lint */ 368fae3551SRodney W. Grimes 378fae3551SRodney W. Grimes #ifndef lint 386b100474SJulian Elischer static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/14/95"; 398fae3551SRodney W. Grimes #endif /* not lint */ 40c69284caSDavid E. O'Brien #endif 418e2e167cSMark Murray #include <sys/cdefs.h> 428e2e167cSMark Murray __FBSDID("$FreeBSD$"); 438e2e167cSMark Murray 448fae3551SRodney W. Grimes #include <sys/param.h> 45571b29eeSPeter Wemm #include <sys/stat.h> 4638375c40SKirk McKusick #include <sys/file.h> 478fae3551SRodney W. Grimes #include <sys/time.h> 488fae3551SRodney W. Grimes #include <sys/mount.h> 4933966081SMatt Jacob #include <sys/resource.h> 50bf58d635SIan Dowse #include <sys/sysctl.h> 511c85e6a3SKirk McKusick #include <sys/disklabel.h> 52780a5c1eSPeter Wemm 538fae3551SRodney W. Grimes #include <ufs/ufs/dinode.h> 54780a5c1eSPeter Wemm #include <ufs/ufs/ufsmount.h> 558fae3551SRodney W. Grimes #include <ufs/ffs/fs.h> 56780a5c1eSPeter Wemm 57780a5c1eSPeter Wemm #include <err.h> 58d0e1503bSPeter Wemm #include <errno.h> 598fae3551SRodney W. Grimes #include <fstab.h> 60ff76fc7fSKirk McKusick #include <grp.h> 61d0e1503bSPeter Wemm #include <paths.h> 6284fc0d7eSMaxime Henrion #include <stdint.h> 63bf58d635SIan Dowse #include <string.h> 64780a5c1eSPeter Wemm 658fae3551SRodney W. Grimes #include "fsck.h" 66780a5c1eSPeter Wemm 67b70cd7eeSWarner Losh static void usage(void) __dead2; 68599304a4SPoul-Henning Kamp static int argtoi(int flag, const char *req, const char *str, int base); 69b70cd7eeSWarner Losh static int checkfilesys(char *filesys); 70b70cd7eeSWarner Losh static struct statfs *getmntpt(const char *); 718fae3551SRodney W. Grimes 7231f4ab50SBruce Evans int 73b70cd7eeSWarner Losh main(int argc, char *argv[]) 748fae3551SRodney W. Grimes { 758fae3551SRodney W. Grimes int ch; 76d33e92f9SJulian Elischer struct rlimit rlimit; 771660ae87SScott Long struct itimerval itimerval; 789ea6f4f0SAdrian Chadd int ret = 0; 798fae3551SRodney W. Grimes 808fae3551SRodney W. Grimes sync(); 819ea6f4f0SAdrian Chadd skipclean = 1; 8215fca934SKirk McKusick while ((ch = getopt(argc, argv, "b:Bc:dfFm:npy")) != -1) { 838fae3551SRodney W. Grimes switch (ch) { 848fae3551SRodney W. Grimes case 'b': 859ea6f4f0SAdrian Chadd skipclean = 0; 868fae3551SRodney W. Grimes bflag = argtoi('b', "number", optarg, 10); 878fae3551SRodney W. Grimes printf("Alternate super block location: %d\n", bflag); 888fae3551SRodney W. Grimes break; 898fae3551SRodney W. Grimes 907578c6abSKirk McKusick case 'B': 917578c6abSKirk McKusick bkgrdflag = 1; 927578c6abSKirk McKusick break; 937578c6abSKirk McKusick 948fae3551SRodney W. Grimes case 'c': 959ea6f4f0SAdrian Chadd skipclean = 0; 968fae3551SRodney W. Grimes cvtlevel = argtoi('c', "conversion level", optarg, 10); 971c85e6a3SKirk McKusick if (cvtlevel < 3) 981c85e6a3SKirk McKusick errx(EEXIT, "cannot do level %d conversion", 991c85e6a3SKirk McKusick cvtlevel); 1008fae3551SRodney W. Grimes break; 1018fae3551SRodney W. Grimes 1028fae3551SRodney W. Grimes case 'd': 1038fae3551SRodney W. Grimes debug++; 1048fae3551SRodney W. Grimes break; 1058fae3551SRodney W. Grimes 10641cee58cSDavid Greenman case 'f': 1079ea6f4f0SAdrian Chadd skipclean = 0; 1088fae3551SRodney W. Grimes break; 1098fae3551SRodney W. Grimes 11015fca934SKirk McKusick case 'F': 11115fca934SKirk McKusick bkgrdcheck = 1; 11215fca934SKirk McKusick break; 11315fca934SKirk McKusick 1148fae3551SRodney W. Grimes case 'm': 1158fae3551SRodney W. Grimes lfmode = argtoi('m', "mode", optarg, 8); 1168fae3551SRodney W. Grimes if (lfmode &~ 07777) 117780a5c1eSPeter Wemm errx(EEXIT, "bad mode to -m: %o", lfmode); 1188fae3551SRodney W. Grimes printf("** lost+found creation mode %o\n", lfmode); 1198fae3551SRodney W. Grimes break; 1208fae3551SRodney W. Grimes 1218fae3551SRodney W. Grimes case 'n': 1228fae3551SRodney W. Grimes nflag++; 1238fae3551SRodney W. Grimes yflag = 0; 1248fae3551SRodney W. Grimes break; 1258fae3551SRodney W. Grimes 1269ea6f4f0SAdrian Chadd case 'p': 1279ea6f4f0SAdrian Chadd preen++; 1289ea6f4f0SAdrian Chadd break; 1299ea6f4f0SAdrian Chadd 1308fae3551SRodney W. Grimes case 'y': 1318fae3551SRodney W. Grimes yflag++; 1328fae3551SRodney W. Grimes nflag = 0; 1338fae3551SRodney W. Grimes break; 1348fae3551SRodney W. Grimes 1358fae3551SRodney W. Grimes default: 1369ea6f4f0SAdrian Chadd usage(); 1378fae3551SRodney W. Grimes } 1388fae3551SRodney W. Grimes } 1398fae3551SRodney W. Grimes argc -= optind; 1408fae3551SRodney W. Grimes argv += optind; 1419ea6f4f0SAdrian Chadd 1429ea6f4f0SAdrian Chadd if (!argc) 1439ea6f4f0SAdrian Chadd usage(); 1449ea6f4f0SAdrian Chadd 1458fae3551SRodney W. Grimes if (signal(SIGINT, SIG_IGN) != SIG_IGN) 1468fae3551SRodney W. Grimes (void)signal(SIGINT, catch); 1478fae3551SRodney W. Grimes if (preen) 1488fae3551SRodney W. Grimes (void)signal(SIGQUIT, catchquit); 1496db798caSIan Dowse signal(SIGINFO, infohandler); 1501660ae87SScott Long if (bkgrdflag) { 1511660ae87SScott Long signal(SIGALRM, alarmhandler); 1521660ae87SScott Long itimerval.it_interval.tv_sec = 5; 1531660ae87SScott Long itimerval.it_interval.tv_usec = 0; 1541660ae87SScott Long itimerval.it_value.tv_sec = 5; 1551660ae87SScott Long itimerval.it_value.tv_usec = 0; 1561660ae87SScott Long setitimer(ITIMER_REAL, &itimerval, NULL); 1571660ae87SScott Long } 158d33e92f9SJulian Elischer /* 159d33e92f9SJulian Elischer * Push up our allowed memory limit so we can cope 160d33e92f9SJulian Elischer * with huge file systems. 161d33e92f9SJulian Elischer */ 162d33e92f9SJulian Elischer if (getrlimit(RLIMIT_DATA, &rlimit) == 0) { 163d33e92f9SJulian Elischer rlimit.rlim_cur = rlimit.rlim_max; 164d33e92f9SJulian Elischer (void)setrlimit(RLIMIT_DATA, &rlimit); 165d33e92f9SJulian Elischer } 1669ea6f4f0SAdrian Chadd while (argc-- > 0) 167bf58d635SIan Dowse (void)checkfilesys(*argv++); 168d33e92f9SJulian Elischer 1698fae3551SRodney W. Grimes if (returntosingle) 1709ea6f4f0SAdrian Chadd ret = 2; 1718fae3551SRodney W. Grimes exit(ret); 1728fae3551SRodney W. Grimes } 1738fae3551SRodney W. Grimes 174780a5c1eSPeter Wemm static int 175599304a4SPoul-Henning Kamp argtoi(int flag, const char *req, const char *str, int base) 1768fae3551SRodney W. Grimes { 1778fae3551SRodney W. Grimes char *cp; 1788fae3551SRodney W. Grimes int ret; 1798fae3551SRodney W. Grimes 1808fae3551SRodney W. Grimes ret = (int)strtol(str, &cp, base); 1818fae3551SRodney W. Grimes if (cp == str || *cp) 182780a5c1eSPeter Wemm errx(EEXIT, "-%c flag requires a %s", flag, req); 1838fae3551SRodney W. Grimes return (ret); 1848fae3551SRodney W. Grimes } 1858fae3551SRodney W. Grimes 1868fae3551SRodney W. Grimes /* 1878fae3551SRodney W. Grimes * Check the specified file system. 1888fae3551SRodney W. Grimes */ 1898fae3551SRodney W. Grimes /* ARGSUSED */ 190780a5c1eSPeter Wemm static int 191b70cd7eeSWarner Losh checkfilesys(char *filesys) 1928fae3551SRodney W. Grimes { 1931c85e6a3SKirk McKusick ufs2_daddr_t n_ffree, n_bfree; 1947578c6abSKirk McKusick struct ufs_args args; 1958fae3551SRodney W. Grimes struct dups *dp; 1967578c6abSKirk McKusick struct statfs *mntp; 197ff76fc7fSKirk McKusick struct stat snapdir; 198ff76fc7fSKirk McKusick struct group *grp; 1991c85e6a3SKirk McKusick ufs2_daddr_t blks; 20084fc0d7eSMaxime Henrion int cylno, ret; 2011c85e6a3SKirk McKusick ino_t files; 20284fc0d7eSMaxime Henrion size_t size; 2038fae3551SRodney W. Grimes 2048fae3551SRodney W. Grimes cdevname = filesys; 2058fae3551SRodney W. Grimes if (debug && preen) 2068fae3551SRodney W. Grimes pwarn("starting\n"); 20715fca934SKirk McKusick /* 20815fca934SKirk McKusick * Make best effort to get the disk name. Check first to see 20915fca934SKirk McKusick * if it is listed among the mounted file systems. Failing that 21015fca934SKirk McKusick * check to see if it is listed in /etc/fstab. 21115fca934SKirk McKusick */ 21215fca934SKirk McKusick mntp = getmntpt(filesys); 21315fca934SKirk McKusick if (mntp != NULL) 21415fca934SKirk McKusick filesys = mntp->f_mntfromname; 21515fca934SKirk McKusick else 21615fca934SKirk McKusick filesys = blockcheck(filesys); 21715fca934SKirk McKusick /* 21815fca934SKirk McKusick * If -F flag specified, check to see whether a background check 21915fca934SKirk McKusick * is possible and needed. If possible and needed, exit with 22015fca934SKirk McKusick * status zero. Otherwise exit with status non-zero. A non-zero 22115fca934SKirk McKusick * exit status will cause a foreground check to be run. 22215fca934SKirk McKusick */ 22338375c40SKirk McKusick sblock_init(); 22415fca934SKirk McKusick if (bkgrdcheck) { 22515fca934SKirk McKusick if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0) 22615fca934SKirk McKusick exit(3); /* Cannot read superblock */ 22715fca934SKirk McKusick close(fsreadfd); 22815fca934SKirk McKusick if (sblock.fs_flags & FS_NEEDSFSCK) 22915fca934SKirk McKusick exit(4); /* Earlier background failed */ 23015fca934SKirk McKusick if ((sblock.fs_flags & FS_DOSOFTDEP) == 0) 23115fca934SKirk McKusick exit(5); /* Not running soft updates */ 23215fca934SKirk McKusick size = MIBSIZE; 23315fca934SKirk McKusick if (sysctlnametomib("vfs.ffs.adjrefcnt", adjrefcnt, &size) < 0) 23415fca934SKirk McKusick exit(6); /* Lacks kernel support */ 23515fca934SKirk McKusick if ((mntp == NULL && sblock.fs_clean == 1) || 23615fca934SKirk McKusick (mntp != NULL && (sblock.fs_flags & FS_UNCLEAN) == 0)) 23715fca934SKirk McKusick exit(7); /* Filesystem clean, report it now */ 23815fca934SKirk McKusick exit(0); 23915fca934SKirk McKusick } 240aef8d244SPawel Jakub Dawidek if (preen && skipclean) { 241aef8d244SPawel Jakub Dawidek /* 242aef8d244SPawel Jakub Dawidek * If file system is gjournaled, check it here. 243aef8d244SPawel Jakub Dawidek */ 244aef8d244SPawel Jakub Dawidek if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0) 245aef8d244SPawel Jakub Dawidek exit(3); /* Cannot read superblock */ 246aef8d244SPawel Jakub Dawidek close(fsreadfd); 247aef8d244SPawel Jakub Dawidek if ((sblock.fs_flags & FS_GJOURNAL) != 0) { 248aef8d244SPawel Jakub Dawidek //printf("GJournaled file system detected on %s.\n", 249aef8d244SPawel Jakub Dawidek // filesys); 250aef8d244SPawel Jakub Dawidek if (sblock.fs_clean == 1) { 251aef8d244SPawel Jakub Dawidek pwarn("FILE SYSTEM CLEAN; SKIPPING CHECKS\n"); 252aef8d244SPawel Jakub Dawidek exit(0); 253aef8d244SPawel Jakub Dawidek } 254aef8d244SPawel Jakub Dawidek if ((sblock.fs_flags & (FS_UNCLEAN | FS_NEEDSFSCK)) == 0) { 255aef8d244SPawel Jakub Dawidek gjournal_check(filesys); 256aef8d244SPawel Jakub Dawidek exit(0); 257aef8d244SPawel Jakub Dawidek } else { 258aef8d244SPawel Jakub Dawidek pfatal("UNEXPECTED INCONSISTENCY, %s\n", 259aef8d244SPawel Jakub Dawidek "CANNOT RUN FAST FSCK\n"); 260aef8d244SPawel Jakub Dawidek } 261aef8d244SPawel Jakub Dawidek } 262aef8d244SPawel Jakub Dawidek } 2637578c6abSKirk McKusick /* 2647578c6abSKirk McKusick * If we are to do a background check: 2657578c6abSKirk McKusick * Get the mount point information of the file system 2667578c6abSKirk McKusick * create snapshot file 2677578c6abSKirk McKusick * return created snapshot file 2687578c6abSKirk McKusick * if not found, clear bkgrdflag and proceed with normal fsck 2697578c6abSKirk McKusick */ 2707578c6abSKirk McKusick if (bkgrdflag) { 2717578c6abSKirk McKusick if (mntp == NULL) { 2727578c6abSKirk McKusick bkgrdflag = 0; 27338375c40SKirk McKusick pfatal("NOT MOUNTED, CANNOT RUN IN BACKGROUND\n"); 2747578c6abSKirk McKusick } else if ((mntp->f_flags & MNT_SOFTDEP) == 0) { 2757578c6abSKirk McKusick bkgrdflag = 0; 27638375c40SKirk McKusick pfatal("NOT USING SOFT UPDATES, %s\n", 27738375c40SKirk McKusick "CANNOT RUN IN BACKGROUND"); 2787578c6abSKirk McKusick } else if ((mntp->f_flags & MNT_RDONLY) != 0) { 2797578c6abSKirk McKusick bkgrdflag = 0; 28038375c40SKirk McKusick pfatal("MOUNTED READ-ONLY, CANNOT RUN IN BACKGROUND\n"); 28138375c40SKirk McKusick } else if ((fsreadfd = open(filesys, O_RDONLY)) >= 0) { 28238375c40SKirk McKusick if (readsb(0) != 0) { 28338375c40SKirk McKusick if (sblock.fs_flags & FS_NEEDSFSCK) { 28438375c40SKirk McKusick bkgrdflag = 0; 28538375c40SKirk McKusick pfatal("UNEXPECTED INCONSISTENCY, %s\n", 28638375c40SKirk McKusick "CANNOT RUN IN BACKGROUND\n"); 28738375c40SKirk McKusick } 28838375c40SKirk McKusick if ((sblock.fs_flags & FS_UNCLEAN) == 0 && 28938375c40SKirk McKusick skipclean && preen) { 29038375c40SKirk McKusick /* 29138375c40SKirk McKusick * file system is clean; 29238375c40SKirk McKusick * skip snapshot and report it clean 29338375c40SKirk McKusick */ 29438375c40SKirk McKusick pwarn("FILE SYSTEM CLEAN; %s\n", 29538375c40SKirk McKusick "SKIPPING CHECKS"); 29638375c40SKirk McKusick goto clean; 29738375c40SKirk McKusick } 29838375c40SKirk McKusick } 29938375c40SKirk McKusick close(fsreadfd); 30038375c40SKirk McKusick } 30138375c40SKirk McKusick if (bkgrdflag) { 302ff76fc7fSKirk McKusick snprintf(snapname, sizeof snapname, "%s/.snap", 3037578c6abSKirk McKusick mntp->f_mntonname); 304ff76fc7fSKirk McKusick if (stat(snapname, &snapdir) < 0) { 305ff76fc7fSKirk McKusick if (errno != ENOENT) { 306ff76fc7fSKirk McKusick bkgrdflag = 0; 307ff76fc7fSKirk McKusick pfatal("CANNOT FIND %s %s: %s, %s\n", 308ff76fc7fSKirk McKusick "SNAPSHOT DIRECTORY", 309ff76fc7fSKirk McKusick snapname, strerror(errno), 310ff76fc7fSKirk McKusick "CANNOT RUN IN BACKGROUND"); 311ff76fc7fSKirk McKusick } else if ((grp = getgrnam("operator")) == 0 || 312ff76fc7fSKirk McKusick mkdir(snapname, 0770) < 0 || 313ff76fc7fSKirk McKusick chown(snapname, -1, grp->gr_gid) < 0 || 314ff76fc7fSKirk McKusick chmod(snapname, 0770) < 0) { 315ff76fc7fSKirk McKusick bkgrdflag = 0; 316ff76fc7fSKirk McKusick pfatal("CANNOT CREATE %s %s: %s, %s\n", 317ff76fc7fSKirk McKusick "SNAPSHOT DIRECTORY", 318ff76fc7fSKirk McKusick snapname, strerror(errno), 319ff76fc7fSKirk McKusick "CANNOT RUN IN BACKGROUND"); 320ff76fc7fSKirk McKusick } 321ff76fc7fSKirk McKusick } else if (!S_ISDIR(snapdir.st_mode)) { 322ff76fc7fSKirk McKusick bkgrdflag = 0; 323ff76fc7fSKirk McKusick pfatal("%s IS NOT A DIRECTORY, %s\n", snapname, 324ff76fc7fSKirk McKusick "CANNOT RUN IN BACKGROUND"); 325ff76fc7fSKirk McKusick } 326ff76fc7fSKirk McKusick } 327ff76fc7fSKirk McKusick if (bkgrdflag) { 328ff76fc7fSKirk McKusick snprintf(snapname, sizeof snapname, 329ff76fc7fSKirk McKusick "%s/.snap/fsck_snapshot", mntp->f_mntonname); 330d90b3ef3SPoul-Henning Kamp memset(&args, 0, sizeof args); 3317578c6abSKirk McKusick args.fspec = snapname; 3327578c6abSKirk McKusick while (mount("ffs", mntp->f_mntonname, 3337578c6abSKirk McKusick mntp->f_flags | MNT_UPDATE | MNT_SNAPSHOT, 3347578c6abSKirk McKusick &args) < 0) { 3357578c6abSKirk McKusick if (errno == EEXIST && unlink(snapname) == 0) 3367578c6abSKirk McKusick continue; 3377578c6abSKirk McKusick bkgrdflag = 0; 33838375c40SKirk McKusick pfatal("CANNOT CREATE SNAPSHOT %s: %s\n", 3397578c6abSKirk McKusick snapname, strerror(errno)); 3407578c6abSKirk McKusick break; 3417578c6abSKirk McKusick } 3427578c6abSKirk McKusick if (bkgrdflag != 0) 3437578c6abSKirk McKusick filesys = snapname; 3447578c6abSKirk McKusick } 3457578c6abSKirk McKusick } 3467578c6abSKirk McKusick 347780a5c1eSPeter Wemm switch (setup(filesys)) { 348780a5c1eSPeter Wemm case 0: 3498fae3551SRodney W. Grimes if (preen) 3508fae3551SRodney W. Grimes pfatal("CAN'T CHECK FILE SYSTEM."); 3516b100474SJulian Elischer return (0); 352780a5c1eSPeter Wemm case -1: 35338375c40SKirk McKusick clean: 354bf58d635SIan Dowse pwarn("clean, %ld free ", (long)(sblock.fs_cstotal.cs_nffree + 355bf58d635SIan Dowse sblock.fs_frag * sblock.fs_cstotal.cs_nbfree)); 356599304a4SPoul-Henning Kamp printf("(%lld frags, %lld blocks, %.1f%% fragmentation)\n", 357599304a4SPoul-Henning Kamp (long long)sblock.fs_cstotal.cs_nffree, 358599304a4SPoul-Henning Kamp (long long)sblock.fs_cstotal.cs_nbfree, 3596b100474SJulian Elischer sblock.fs_cstotal.cs_nffree * 100.0 / sblock.fs_dsize); 36041cee58cSDavid Greenman return (0); 36141cee58cSDavid Greenman } 3626b100474SJulian Elischer 3638fae3551SRodney W. Grimes /* 364b1897c19SJulian Elischer * Cleared if any questions answered no. Used to decide if 365b1897c19SJulian Elischer * the superblock should be marked clean. 366b1897c19SJulian Elischer */ 367b1897c19SJulian Elischer resolved = 1; 368b1897c19SJulian Elischer /* 3698fae3551SRodney W. Grimes * 1: scan inodes tallying blocks used 3708fae3551SRodney W. Grimes */ 3718fae3551SRodney W. Grimes if (preen == 0) { 3728fae3551SRodney W. Grimes printf("** Last Mounted on %s\n", sblock.fs_fsmnt); 3737578c6abSKirk McKusick if (mntp != NULL && mntp->f_flags & MNT_ROOTFS) 3748fae3551SRodney W. Grimes printf("** Root file system\n"); 3758fae3551SRodney W. Grimes printf("** Phase 1 - Check Blocks and Sizes\n"); 3768fae3551SRodney W. Grimes } 3778fae3551SRodney W. Grimes pass1(); 3788fae3551SRodney W. Grimes 3798fae3551SRodney W. Grimes /* 3808fae3551SRodney W. Grimes * 1b: locate first references to duplicates, if any 3818fae3551SRodney W. Grimes */ 3828fae3551SRodney W. Grimes if (duplist) { 383b1897c19SJulian Elischer if (preen || usedsoftdep) 3848fae3551SRodney W. Grimes pfatal("INTERNAL ERROR: dups with -p"); 3858fae3551SRodney W. Grimes printf("** Phase 1b - Rescan For More DUPS\n"); 3868fae3551SRodney W. Grimes pass1b(); 3878fae3551SRodney W. Grimes } 3888fae3551SRodney W. Grimes 3898fae3551SRodney W. Grimes /* 3908fae3551SRodney W. Grimes * 2: traverse directories from root to mark all connected directories 3918fae3551SRodney W. Grimes */ 3928fae3551SRodney W. Grimes if (preen == 0) 3938fae3551SRodney W. Grimes printf("** Phase 2 - Check Pathnames\n"); 3948fae3551SRodney W. Grimes pass2(); 3958fae3551SRodney W. Grimes 3968fae3551SRodney W. Grimes /* 3978fae3551SRodney W. Grimes * 3: scan inodes looking for disconnected directories 3988fae3551SRodney W. Grimes */ 3998fae3551SRodney W. Grimes if (preen == 0) 4008fae3551SRodney W. Grimes printf("** Phase 3 - Check Connectivity\n"); 4018fae3551SRodney W. Grimes pass3(); 4028fae3551SRodney W. Grimes 4038fae3551SRodney W. Grimes /* 4048fae3551SRodney W. Grimes * 4: scan inodes looking for disconnected files; check reference counts 4058fae3551SRodney W. Grimes */ 4068fae3551SRodney W. Grimes if (preen == 0) 4078fae3551SRodney W. Grimes printf("** Phase 4 - Check Reference Counts\n"); 4088fae3551SRodney W. Grimes pass4(); 4098fae3551SRodney W. Grimes 4108fae3551SRodney W. Grimes /* 4118fae3551SRodney W. Grimes * 5: check and repair resource counts in cylinder groups 4128fae3551SRodney W. Grimes */ 4138fae3551SRodney W. Grimes if (preen == 0) 4148fae3551SRodney W. Grimes printf("** Phase 5 - Check Cyl groups\n"); 4158fae3551SRodney W. Grimes pass5(); 4168fae3551SRodney W. Grimes 4178fae3551SRodney W. Grimes /* 4188fae3551SRodney W. Grimes * print out summary statistics 4198fae3551SRodney W. Grimes */ 4208fae3551SRodney W. Grimes n_ffree = sblock.fs_cstotal.cs_nffree; 4218fae3551SRodney W. Grimes n_bfree = sblock.fs_cstotal.cs_nbfree; 4227578c6abSKirk McKusick files = maxino - ROOTINO - sblock.fs_cstotal.cs_nifree - n_files; 4237578c6abSKirk McKusick blks = n_blks + 4247578c6abSKirk McKusick sblock.fs_ncg * (cgdmin(&sblock, 0) - cgsblock(&sblock, 0)); 4257578c6abSKirk McKusick blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0); 4267578c6abSKirk McKusick blks += howmany(sblock.fs_cssize, sblock.fs_fsize); 4277578c6abSKirk McKusick blks = maxfsblock - (n_ffree + sblock.fs_frag * n_bfree) - blks; 4287578c6abSKirk McKusick if (bkgrdflag && (files > 0 || blks > 0)) { 4297578c6abSKirk McKusick countdirs = sblock.fs_cstotal.cs_ndir - countdirs; 430599304a4SPoul-Henning Kamp pwarn("Reclaimed: %ld directories, %ld files, %lld fragments\n", 431599304a4SPoul-Henning Kamp countdirs, (long)files - countdirs, (long long)blks); 4327578c6abSKirk McKusick } 43384fc0d7eSMaxime Henrion pwarn("%ld files, %jd used, %ju free ", 43484fc0d7eSMaxime Henrion (long)n_files, (intmax_t)n_blks, 43584fc0d7eSMaxime Henrion (uintmax_t)n_ffree + sblock.fs_frag * n_bfree); 43684fc0d7eSMaxime Henrion printf("(%ju frags, %ju blocks, %.1f%% fragmentation)\n", 43784fc0d7eSMaxime Henrion (uintmax_t)n_ffree, (uintmax_t)n_bfree, 43884fc0d7eSMaxime Henrion n_ffree * 100.0 / sblock.fs_dsize); 4398fae3551SRodney W. Grimes if (debug) { 4407578c6abSKirk McKusick if (files < 0) 4417578c6abSKirk McKusick printf("%d inodes missing\n", -files); 4427578c6abSKirk McKusick if (blks < 0) 443599304a4SPoul-Henning Kamp printf("%lld blocks missing\n", -(long long)blks); 4448fae3551SRodney W. Grimes if (duplist != NULL) { 4458fae3551SRodney W. Grimes printf("The following duplicate blocks remain:"); 4468fae3551SRodney W. Grimes for (dp = duplist; dp; dp = dp->next) 447599304a4SPoul-Henning Kamp printf(" %lld,", (long long)dp->dup); 4488fae3551SRodney W. Grimes printf("\n"); 4498fae3551SRodney W. Grimes } 4508fae3551SRodney W. Grimes } 4518fae3551SRodney W. Grimes duplist = (struct dups *)0; 4528fae3551SRodney W. Grimes muldup = (struct dups *)0; 4538fae3551SRodney W. Grimes inocleanup(); 454802cd8e6SDavid Greenman if (fsmodified) { 455d33e92f9SJulian Elischer sblock.fs_time = time(NULL); 4568fae3551SRodney W. Grimes sbdirty(); 4578fae3551SRodney W. Grimes } 4588fae3551SRodney W. Grimes if (cvtlevel && sblk.b_dirty) { 4598fae3551SRodney W. Grimes /* 4608fae3551SRodney W. Grimes * Write out the duplicate super blocks 4618fae3551SRodney W. Grimes */ 4628fae3551SRodney W. Grimes for (cylno = 0; cylno < sblock.fs_ncg; cylno++) 463aef8d244SPawel Jakub Dawidek blwrite(fswritefd, (char *)&sblock, 4641c85e6a3SKirk McKusick fsbtodb(&sblock, cgsblock(&sblock, cylno)), 4651c85e6a3SKirk McKusick SBLOCKSIZE); 4668fae3551SRodney W. Grimes } 467b1897c19SJulian Elischer if (rerun) 468b1897c19SJulian Elischer resolved = 0; 469571b29eeSPeter Wemm 470d0e1503bSPeter Wemm /* 471aa5344b7SPeter Wemm * Check to see if the file system is mounted read-write. 472d0e1503bSPeter Wemm */ 4737578c6abSKirk McKusick if (bkgrdflag == 0 && mntp != NULL && (mntp->f_flags & MNT_RDONLY) == 0) 474b1897c19SJulian Elischer resolved = 0; 475b1897c19SJulian Elischer ckfini(resolved); 476d33e92f9SJulian Elischer 477d33e92f9SJulian Elischer for (cylno = 0; cylno < sblock.fs_ncg; cylno++) 478d33e92f9SJulian Elischer if (inostathead[cylno].il_stat != NULL) 479d33e92f9SJulian Elischer free((char *)inostathead[cylno].il_stat); 480d33e92f9SJulian Elischer free((char *)inostathead); 481d33e92f9SJulian Elischer inostathead = NULL; 482d33e92f9SJulian Elischer if (fsmodified && !preen) 4838fae3551SRodney W. Grimes printf("\n***** FILE SYSTEM WAS MODIFIED *****\n"); 48447ceb636SGuido van Rooij if (rerun) 48547ceb636SGuido van Rooij printf("\n***** PLEASE RERUN FSCK *****\n"); 4867578c6abSKirk McKusick if (mntp != NULL) { 487d0e1503bSPeter Wemm /* 488d0e1503bSPeter Wemm * We modified a mounted file system. Do a mount update on 489d0e1503bSPeter Wemm * it unless it is read-write, so we can continue using it 490d0e1503bSPeter Wemm * as safely as possible. 491d0e1503bSPeter Wemm */ 4927578c6abSKirk McKusick if (mntp->f_flags & MNT_RDONLY) { 4938fae3551SRodney W. Grimes args.fspec = 0; 4948fae3551SRodney W. Grimes args.export.ex_flags = 0; 4958fae3551SRodney W. Grimes args.export.ex_root = 0; 4967578c6abSKirk McKusick ret = mount("ufs", mntp->f_mntonname, 4977578c6abSKirk McKusick mntp->f_flags | MNT_UPDATE | MNT_RELOAD, &args); 4988fae3551SRodney W. Grimes if (ret == 0) 499d0e1503bSPeter Wemm return (0); 500d0e1503bSPeter Wemm pwarn("mount reload of '%s' failed: %s\n\n", 5017578c6abSKirk McKusick mntp->f_mntonname, strerror(errno)); 502d0e1503bSPeter Wemm } 503d33e92f9SJulian Elischer if (!fsmodified) 504d33e92f9SJulian Elischer return (0); 5058fae3551SRodney W. Grimes if (!preen) 5068fae3551SRodney W. Grimes printf("\n***** REBOOT NOW *****\n"); 5078fae3551SRodney W. Grimes sync(); 5088fae3551SRodney W. Grimes return (4); 5098fae3551SRodney W. Grimes } 5108fae3551SRodney W. Grimes return (0); 5118fae3551SRodney W. Grimes } 512571b29eeSPeter Wemm 513571b29eeSPeter Wemm /* 51415fca934SKirk McKusick * Get the mount point information for name. 515571b29eeSPeter Wemm */ 516571b29eeSPeter Wemm static struct statfs * 517b70cd7eeSWarner Losh getmntpt(const char *name) 518571b29eeSPeter Wemm { 519571b29eeSPeter Wemm struct stat devstat, mntdevstat; 520d0e1503bSPeter Wemm char device[sizeof(_PATH_DEV) - 1 + MNAMELEN]; 521599304a4SPoul-Henning Kamp char *ddevname; 52215fca934SKirk McKusick struct statfs *mntbuf, *statfsp; 52315fca934SKirk McKusick int i, mntsize, isdev; 524571b29eeSPeter Wemm 52515fca934SKirk McKusick if (stat(name, &devstat) != 0) 526571b29eeSPeter Wemm return (NULL); 52715fca934SKirk McKusick if (S_ISCHR(devstat.st_mode) || S_ISBLK(devstat.st_mode)) 52815fca934SKirk McKusick isdev = 1; 52915fca934SKirk McKusick else 53015fca934SKirk McKusick isdev = 0; 531571b29eeSPeter Wemm mntsize = getmntinfo(&mntbuf, MNT_NOWAIT); 532571b29eeSPeter Wemm for (i = 0; i < mntsize; i++) { 53315fca934SKirk McKusick statfsp = &mntbuf[i]; 534599304a4SPoul-Henning Kamp ddevname = statfsp->f_mntfromname; 535599304a4SPoul-Henning Kamp if (*ddevname != '/') { 536d0e1503bSPeter Wemm strcpy(device, _PATH_DEV); 537599304a4SPoul-Henning Kamp strcat(device, ddevname); 53815fca934SKirk McKusick strcpy(statfsp->f_mntfromname, device); 53915fca934SKirk McKusick } 54015fca934SKirk McKusick if (isdev == 0) { 54115fca934SKirk McKusick if (strcmp(name, statfsp->f_mntonname)) 54215fca934SKirk McKusick continue; 54315fca934SKirk McKusick return (statfsp); 544d0e1503bSPeter Wemm } 545599304a4SPoul-Henning Kamp if (stat(ddevname, &mntdevstat) == 0 && 546d0e1503bSPeter Wemm mntdevstat.st_rdev == devstat.st_rdev) 54715fca934SKirk McKusick return (statfsp); 548571b29eeSPeter Wemm } 54915fca934SKirk McKusick statfsp = NULL; 55015fca934SKirk McKusick return (statfsp); 551571b29eeSPeter Wemm } 5529ea6f4f0SAdrian Chadd 5539ea6f4f0SAdrian Chadd static void 554b70cd7eeSWarner Losh usage(void) 5559ea6f4f0SAdrian Chadd { 5569ea6f4f0SAdrian Chadd (void) fprintf(stderr, 557d3974088SDag-Erling Smørgrav "usage: %s [-BFpfny] [-b block] [-c level] [-m mode] " 5589ea6f4f0SAdrian Chadd "filesystem ...\n", 5598e2e167cSMark Murray getprogname()); 5609ea6f4f0SAdrian Chadd exit(1); 5619ea6f4f0SAdrian Chadd } 562