main.c revision 177905
11558Srgrimes/* 21558Srgrimes * Copyright (c) 1980, 1986, 1993 31558Srgrimes * The Regents of the University of California. All rights reserved. 41558Srgrimes * 51558Srgrimes * Redistribution and use in source and binary forms, with or without 61558Srgrimes * modification, are permitted provided that the following conditions 71558Srgrimes * are met: 81558Srgrimes * 1. Redistributions of source code must retain the above copyright 91558Srgrimes * notice, this list of conditions and the following disclaimer. 101558Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111558Srgrimes * notice, this list of conditions and the following disclaimer in the 121558Srgrimes * documentation and/or other materials provided with the distribution. 131558Srgrimes * 4. Neither the name of the University nor the names of its contributors 141558Srgrimes * may be used to endorse or promote products derived from this software 151558Srgrimes * without specific prior written permission. 161558Srgrimes * 171558Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 181558Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 191558Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 201558Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 211558Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 221558Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 231558Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 241558Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 251558Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261558Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 271558Srgrimes * SUCH DAMAGE. 281558Srgrimes */ 291558Srgrimes 30114589Sobrien#if 0 311558Srgrimes#ifndef lint 327585Sbdestatic const char copyright[] = 331558Srgrimes"@(#) Copyright (c) 1980, 1986, 1993\n\ 341558Srgrimes The Regents of the University of California. All rights reserved.\n"; 351558Srgrimes#endif /* not lint */ 361558Srgrimes 371558Srgrimes#ifndef lint 3841477Sjulianstatic char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/14/95"; 39114589Sobrien#endif /* not lint */ 4041477Sjulian#endif 4193103Smarkm#include <sys/cdefs.h> 4293103Smarkm__FBSDID("$FreeBSD: head/sbin/fsck_ffs/main.c 177905 2008-04-04 01:50:58Z rodrigc $"); 4393103Smarkm 441558Srgrimes#include <sys/param.h> 4555275Speter#include <sys/stat.h> 4675557Smckusick#include <sys/file.h> 471558Srgrimes#include <sys/time.h> 481558Srgrimes#include <sys/mount.h> 4940918Smjacob#include <sys/resource.h> 5086514Siedowse#include <sys/sysctl.h> 51172236Srodrigc#include <sys/uio.h> 5298542Smckusick#include <sys/disklabel.h> 5323675Speter 541558Srgrimes#include <ufs/ufs/dinode.h> 551558Srgrimes#include <ufs/ffs/fs.h> 5623675Speter 5723675Speter#include <err.h> 5855725Speter#include <errno.h> 591558Srgrimes#include <fstab.h> 60120901Smckusick#include <grp.h> 61172236Srodrigc#include <mntopts.h> 6255725Speter#include <paths.h> 63101037Smux#include <stdint.h> 6486514Siedowse#include <string.h> 6523675Speter 661558Srgrimes#include "fsck.h" 671558Srgrimes 6892839Simpstatic void usage(void) __dead2; 69100935Sphkstatic int argtoi(int flag, const char *req, const char *str, int base); 7092839Simpstatic int checkfilesys(char *filesys); 71171800Spjdstatic int chkdoreload(struct statfs *mntp); 7292839Simpstatic struct statfs *getmntpt(const char *); 7323675Speter 747585Sbdeint 7592839Simpmain(int argc, char *argv[]) 761558Srgrimes{ 771558Srgrimes int ch; 7841474Sjulian struct rlimit rlimit; 79126345Sscottl struct itimerval itimerval; 8066861Sadrian int ret = 0; 811558Srgrimes 821558Srgrimes sync(); 8366861Sadrian skipclean = 1; 8475927Smckusick while ((ch = getopt(argc, argv, "b:Bc:dfFm:npy")) != -1) { 851558Srgrimes switch (ch) { 861558Srgrimes case 'b': 8766861Sadrian skipclean = 0; 881558Srgrimes bflag = argtoi('b', "number", optarg, 10); 891558Srgrimes printf("Alternate super block location: %d\n", bflag); 901558Srgrimes break; 911558Srgrimes 9274556Smckusick case 'B': 9374556Smckusick bkgrdflag = 1; 9474556Smckusick break; 9574556Smckusick 961558Srgrimes case 'c': 9766861Sadrian skipclean = 0; 981558Srgrimes cvtlevel = argtoi('c', "conversion level", optarg, 10); 9998542Smckusick if (cvtlevel < 3) 10098542Smckusick errx(EEXIT, "cannot do level %d conversion", 10198542Smckusick cvtlevel); 1021558Srgrimes break; 1038871Srgrimes 1041558Srgrimes case 'd': 1051558Srgrimes debug++; 1061558Srgrimes break; 1071558Srgrimes 1082153Sdg case 'f': 10966861Sadrian skipclean = 0; 1102153Sdg break; 1112153Sdg 11275927Smckusick case 'F': 11375927Smckusick bkgrdcheck = 1; 11475927Smckusick break; 11575927Smckusick 1161558Srgrimes case 'm': 1171558Srgrimes lfmode = argtoi('m', "mode", optarg, 8); 1181558Srgrimes if (lfmode &~ 07777) 11923675Speter errx(EEXIT, "bad mode to -m: %o", lfmode); 1201558Srgrimes printf("** lost+found creation mode %o\n", lfmode); 1211558Srgrimes break; 1221558Srgrimes 1231558Srgrimes case 'n': 1241558Srgrimes nflag++; 1251558Srgrimes yflag = 0; 1261558Srgrimes break; 1271558Srgrimes 12866861Sadrian case 'p': 12966861Sadrian preen++; 13066861Sadrian break; 13166861Sadrian 1321558Srgrimes case 'y': 1331558Srgrimes yflag++; 1341558Srgrimes nflag = 0; 1351558Srgrimes break; 1361558Srgrimes 1371558Srgrimes default: 13866861Sadrian usage(); 1391558Srgrimes } 1401558Srgrimes } 1411558Srgrimes argc -= optind; 1421558Srgrimes argv += optind; 14366861Sadrian 14466861Sadrian if (!argc) 14566861Sadrian usage(); 14666861Sadrian 1471558Srgrimes if (signal(SIGINT, SIG_IGN) != SIG_IGN) 1481558Srgrimes (void)signal(SIGINT, catch); 1491558Srgrimes if (preen) 1501558Srgrimes (void)signal(SIGQUIT, catchquit); 15170050Siedowse signal(SIGINFO, infohandler); 152126345Sscottl if (bkgrdflag) { 153126345Sscottl signal(SIGALRM, alarmhandler); 154126345Sscottl itimerval.it_interval.tv_sec = 5; 155126345Sscottl itimerval.it_interval.tv_usec = 0; 156126345Sscottl itimerval.it_value.tv_sec = 5; 157126345Sscottl itimerval.it_value.tv_usec = 0; 158126345Sscottl setitimer(ITIMER_REAL, &itimerval, NULL); 159126345Sscottl } 16041474Sjulian /* 16141474Sjulian * Push up our allowed memory limit so we can cope 162102231Strhodes * with huge file systems. 16341474Sjulian */ 16441474Sjulian if (getrlimit(RLIMIT_DATA, &rlimit) == 0) { 16541474Sjulian rlimit.rlim_cur = rlimit.rlim_max; 16641474Sjulian (void)setrlimit(RLIMIT_DATA, &rlimit); 16741474Sjulian } 16866861Sadrian while (argc-- > 0) 16986514Siedowse (void)checkfilesys(*argv++); 17041474Sjulian 1711558Srgrimes if (returntosingle) 17266861Sadrian ret = 2; 1731558Srgrimes exit(ret); 1741558Srgrimes} 1751558Srgrimes 17623675Speterstatic int 177100935Sphkargtoi(int flag, const char *req, const char *str, int base) 1781558Srgrimes{ 1791558Srgrimes char *cp; 1801558Srgrimes int ret; 1811558Srgrimes 1821558Srgrimes ret = (int)strtol(str, &cp, base); 1831558Srgrimes if (cp == str || *cp) 18423675Speter errx(EEXIT, "-%c flag requires a %s", flag, req); 1851558Srgrimes return (ret); 1861558Srgrimes} 1871558Srgrimes 1881558Srgrimes/* 189102231Strhodes * Check the specified file system. 1901558Srgrimes */ 1911558Srgrimes/* ARGSUSED */ 19223675Speterstatic int 19392839Simpcheckfilesys(char *filesys) 1941558Srgrimes{ 19598542Smckusick ufs2_daddr_t n_ffree, n_bfree; 1961558Srgrimes struct dups *dp; 19774556Smckusick struct statfs *mntp; 198120901Smckusick struct stat snapdir; 199120901Smckusick struct group *grp; 20098542Smckusick ufs2_daddr_t blks; 201172236Srodrigc struct iovec *iov; 202172236Srodrigc char errmsg[255]; 203172236Srodrigc int iovlen; 204172236Srodrigc int fflags; 205171800Spjd int cylno; 20698542Smckusick ino_t files; 207101037Smux size_t size; 2081558Srgrimes 209172236Srodrigc iov = NULL; 210172236Srodrigc iovlen = 0; 211172236Srodrigc errmsg[0] = '\0'; 212172236Srodrigc 2131558Srgrimes cdevname = filesys; 2141558Srgrimes if (debug && preen) 2151558Srgrimes pwarn("starting\n"); 21675927Smckusick /* 21775927Smckusick * Make best effort to get the disk name. Check first to see 218102231Strhodes * if it is listed among the mounted file systems. Failing that 21975927Smckusick * check to see if it is listed in /etc/fstab. 22075927Smckusick */ 22175927Smckusick mntp = getmntpt(filesys); 22275927Smckusick if (mntp != NULL) 22375927Smckusick filesys = mntp->f_mntfromname; 22475927Smckusick else 22575927Smckusick filesys = blockcheck(filesys); 22675927Smckusick /* 22775927Smckusick * If -F flag specified, check to see whether a background check 22875927Smckusick * is possible and needed. If possible and needed, exit with 22975927Smckusick * status zero. Otherwise exit with status non-zero. A non-zero 23075927Smckusick * exit status will cause a foreground check to be run. 23175927Smckusick */ 23275557Smckusick sblock_init(); 23375927Smckusick if (bkgrdcheck) { 23475927Smckusick if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0) 23575927Smckusick exit(3); /* Cannot read superblock */ 23675927Smckusick close(fsreadfd); 23775927Smckusick if (sblock.fs_flags & FS_NEEDSFSCK) 23875927Smckusick exit(4); /* Earlier background failed */ 23975927Smckusick if ((sblock.fs_flags & FS_DOSOFTDEP) == 0) 24075927Smckusick exit(5); /* Not running soft updates */ 24175927Smckusick size = MIBSIZE; 24275927Smckusick if (sysctlnametomib("vfs.ffs.adjrefcnt", adjrefcnt, &size) < 0) 24375927Smckusick exit(6); /* Lacks kernel support */ 24475927Smckusick if ((mntp == NULL && sblock.fs_clean == 1) || 24575927Smckusick (mntp != NULL && (sblock.fs_flags & FS_UNCLEAN) == 0)) 24675927Smckusick exit(7); /* Filesystem clean, report it now */ 24775927Smckusick exit(0); 24875927Smckusick } 249163845Spjd if (preen && skipclean) { 250163845Spjd /* 251163845Spjd * If file system is gjournaled, check it here. 252163845Spjd */ 253163845Spjd if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0) 254163845Spjd exit(3); /* Cannot read superblock */ 255163845Spjd close(fsreadfd); 256163845Spjd if ((sblock.fs_flags & FS_GJOURNAL) != 0) { 257163845Spjd //printf("GJournaled file system detected on %s.\n", 258163845Spjd // filesys); 259163845Spjd if (sblock.fs_clean == 1) { 260163845Spjd pwarn("FILE SYSTEM CLEAN; SKIPPING CHECKS\n"); 261163845Spjd exit(0); 262163845Spjd } 263163845Spjd if ((sblock.fs_flags & (FS_UNCLEAN | FS_NEEDSFSCK)) == 0) { 264163845Spjd gjournal_check(filesys); 265171800Spjd if (chkdoreload(mntp) == 0) 266171800Spjd exit(0); 267171800Spjd exit(4); 268163845Spjd } else { 269163845Spjd pfatal("UNEXPECTED INCONSISTENCY, %s\n", 270163845Spjd "CANNOT RUN FAST FSCK\n"); 271163845Spjd } 272163845Spjd } 273163845Spjd } 27474556Smckusick /* 27574556Smckusick * If we are to do a background check: 276102231Strhodes * Get the mount point information of the file system 27774556Smckusick * create snapshot file 27874556Smckusick * return created snapshot file 27974556Smckusick * if not found, clear bkgrdflag and proceed with normal fsck 28074556Smckusick */ 28174556Smckusick if (bkgrdflag) { 28274556Smckusick if (mntp == NULL) { 28374556Smckusick bkgrdflag = 0; 28475557Smckusick pfatal("NOT MOUNTED, CANNOT RUN IN BACKGROUND\n"); 28574556Smckusick } else if ((mntp->f_flags & MNT_SOFTDEP) == 0) { 28674556Smckusick bkgrdflag = 0; 28775557Smckusick pfatal("NOT USING SOFT UPDATES, %s\n", 28875557Smckusick "CANNOT RUN IN BACKGROUND"); 28974556Smckusick } else if ((mntp->f_flags & MNT_RDONLY) != 0) { 29074556Smckusick bkgrdflag = 0; 29175557Smckusick pfatal("MOUNTED READ-ONLY, CANNOT RUN IN BACKGROUND\n"); 29275557Smckusick } else if ((fsreadfd = open(filesys, O_RDONLY)) >= 0) { 29375557Smckusick if (readsb(0) != 0) { 29475557Smckusick if (sblock.fs_flags & FS_NEEDSFSCK) { 29575557Smckusick bkgrdflag = 0; 29675557Smckusick pfatal("UNEXPECTED INCONSISTENCY, %s\n", 29775557Smckusick "CANNOT RUN IN BACKGROUND\n"); 29875557Smckusick } 29975557Smckusick if ((sblock.fs_flags & FS_UNCLEAN) == 0 && 30075557Smckusick skipclean && preen) { 30175557Smckusick /* 302102231Strhodes * file system is clean; 30375557Smckusick * skip snapshot and report it clean 30475557Smckusick */ 305118302Sru pwarn("FILE SYSTEM CLEAN; %s\n", 30675557Smckusick "SKIPPING CHECKS"); 30775557Smckusick goto clean; 30875557Smckusick } 30975557Smckusick } 31075557Smckusick close(fsreadfd); 31175557Smckusick } 31275557Smckusick if (bkgrdflag) { 313120901Smckusick snprintf(snapname, sizeof snapname, "%s/.snap", 31474556Smckusick mntp->f_mntonname); 315120901Smckusick if (stat(snapname, &snapdir) < 0) { 316120901Smckusick if (errno != ENOENT) { 317120901Smckusick bkgrdflag = 0; 318120901Smckusick pfatal("CANNOT FIND %s %s: %s, %s\n", 319120901Smckusick "SNAPSHOT DIRECTORY", 320120901Smckusick snapname, strerror(errno), 321120901Smckusick "CANNOT RUN IN BACKGROUND"); 322120901Smckusick } else if ((grp = getgrnam("operator")) == 0 || 323120901Smckusick mkdir(snapname, 0770) < 0 || 324120901Smckusick chown(snapname, -1, grp->gr_gid) < 0 || 325120901Smckusick chmod(snapname, 0770) < 0) { 326120901Smckusick bkgrdflag = 0; 327120901Smckusick pfatal("CANNOT CREATE %s %s: %s, %s\n", 328120901Smckusick "SNAPSHOT DIRECTORY", 329120901Smckusick snapname, strerror(errno), 330120901Smckusick "CANNOT RUN IN BACKGROUND"); 331120901Smckusick } 332120901Smckusick } else if (!S_ISDIR(snapdir.st_mode)) { 333120901Smckusick bkgrdflag = 0; 334120901Smckusick pfatal("%s IS NOT A DIRECTORY, %s\n", snapname, 335120901Smckusick "CANNOT RUN IN BACKGROUND"); 336120901Smckusick } 337120901Smckusick } 338120901Smckusick if (bkgrdflag) { 339120901Smckusick snprintf(snapname, sizeof snapname, 340120901Smckusick "%s/.snap/fsck_snapshot", mntp->f_mntonname); 341172236Srodrigc fflags = mntp->f_flags; 342172236Srodrigc fflags = fflags | MNT_UPDATE | MNT_SNAPSHOT; 343172236Srodrigc build_iovec(&iov, &iovlen, "fstype", "ffs", 4); 344172236Srodrigc build_iovec(&iov, &iovlen, "from", snapname, 345172236Srodrigc (size_t)-1); 346172236Srodrigc build_iovec(&iov, &iovlen, "fspath", mntp->f_mntonname, 347172236Srodrigc (size_t)-1); 348172236Srodrigc build_iovec(&iov, &iovlen, "errmsg", errmsg, 349172236Srodrigc sizeof(errmsg)); 350172236Srodrigc 351172236Srodrigc while (nmount(iov, iovlen, fflags) < 0) { 35274556Smckusick if (errno == EEXIST && unlink(snapname) == 0) 35374556Smckusick continue; 35474556Smckusick bkgrdflag = 0; 355172236Srodrigc pfatal("CANNOT CREATE SNAPSHOT %s: %s %s\n", 356172236Srodrigc snapname, strerror(errno), errmsg); 35774556Smckusick break; 35874556Smckusick } 35974556Smckusick if (bkgrdflag != 0) 36074556Smckusick filesys = snapname; 36174556Smckusick } 36274556Smckusick } 36374556Smckusick 36423675Speter switch (setup(filesys)) { 36523675Speter case 0: 3661558Srgrimes if (preen) 3671558Srgrimes pfatal("CAN'T CHECK FILE SYSTEM."); 36841477Sjulian return (0); 36923675Speter case -1: 37075557Smckusick clean: 37186514Siedowse pwarn("clean, %ld free ", (long)(sblock.fs_cstotal.cs_nffree + 37286514Siedowse sblock.fs_frag * sblock.fs_cstotal.cs_nbfree)); 373100935Sphk printf("(%lld frags, %lld blocks, %.1f%% fragmentation)\n", 374100935Sphk (long long)sblock.fs_cstotal.cs_nffree, 375100935Sphk (long long)sblock.fs_cstotal.cs_nbfree, 37641477Sjulian sblock.fs_cstotal.cs_nffree * 100.0 / sblock.fs_dsize); 37731904Sbde return (0); 3782153Sdg } 37955275Speter 38055275Speter /* 38134266Sjulian * Cleared if any questions answered no. Used to decide if 38234266Sjulian * the superblock should be marked clean. 38334266Sjulian */ 38434266Sjulian resolved = 1; 38534266Sjulian /* 3861558Srgrimes * 1: scan inodes tallying blocks used 3871558Srgrimes */ 3881558Srgrimes if (preen == 0) { 3891558Srgrimes printf("** Last Mounted on %s\n", sblock.fs_fsmnt); 39074556Smckusick if (mntp != NULL && mntp->f_flags & MNT_ROOTFS) 391102231Strhodes printf("** Root file system\n"); 3921558Srgrimes printf("** Phase 1 - Check Blocks and Sizes\n"); 3931558Srgrimes } 3941558Srgrimes pass1(); 3951558Srgrimes 3961558Srgrimes /* 3971558Srgrimes * 1b: locate first references to duplicates, if any 3981558Srgrimes */ 3991558Srgrimes if (duplist) { 40034266Sjulian if (preen || usedsoftdep) 4011558Srgrimes pfatal("INTERNAL ERROR: dups with -p"); 4021558Srgrimes printf("** Phase 1b - Rescan For More DUPS\n"); 4031558Srgrimes pass1b(); 4041558Srgrimes } 4051558Srgrimes 4061558Srgrimes /* 4071558Srgrimes * 2: traverse directories from root to mark all connected directories 4081558Srgrimes */ 4091558Srgrimes if (preen == 0) 4101558Srgrimes printf("** Phase 2 - Check Pathnames\n"); 4111558Srgrimes pass2(); 4121558Srgrimes 4131558Srgrimes /* 4141558Srgrimes * 3: scan inodes looking for disconnected directories 4151558Srgrimes */ 4161558Srgrimes if (preen == 0) 4171558Srgrimes printf("** Phase 3 - Check Connectivity\n"); 4181558Srgrimes pass3(); 4191558Srgrimes 4201558Srgrimes /* 4211558Srgrimes * 4: scan inodes looking for disconnected files; check reference counts 4221558Srgrimes */ 4231558Srgrimes if (preen == 0) 4241558Srgrimes printf("** Phase 4 - Check Reference Counts\n"); 4251558Srgrimes pass4(); 4261558Srgrimes 4271558Srgrimes /* 4281558Srgrimes * 5: check and repair resource counts in cylinder groups 4291558Srgrimes */ 4301558Srgrimes if (preen == 0) 4311558Srgrimes printf("** Phase 5 - Check Cyl groups\n"); 4321558Srgrimes pass5(); 4331558Srgrimes 4341558Srgrimes /* 4351558Srgrimes * print out summary statistics 4361558Srgrimes */ 4371558Srgrimes n_ffree = sblock.fs_cstotal.cs_nffree; 4381558Srgrimes n_bfree = sblock.fs_cstotal.cs_nbfree; 43974556Smckusick files = maxino - ROOTINO - sblock.fs_cstotal.cs_nifree - n_files; 44074556Smckusick blks = n_blks + 44174556Smckusick sblock.fs_ncg * (cgdmin(&sblock, 0) - cgsblock(&sblock, 0)); 44274556Smckusick blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0); 44374556Smckusick blks += howmany(sblock.fs_cssize, sblock.fs_fsize); 44474556Smckusick blks = maxfsblock - (n_ffree + sblock.fs_frag * n_bfree) - blks; 44574556Smckusick if (bkgrdflag && (files > 0 || blks > 0)) { 44674556Smckusick countdirs = sblock.fs_cstotal.cs_ndir - countdirs; 447100935Sphk pwarn("Reclaimed: %ld directories, %ld files, %lld fragments\n", 448100935Sphk countdirs, (long)files - countdirs, (long long)blks); 44974556Smckusick } 450101037Smux pwarn("%ld files, %jd used, %ju free ", 451101037Smux (long)n_files, (intmax_t)n_blks, 452101037Smux (uintmax_t)n_ffree + sblock.fs_frag * n_bfree); 453101037Smux printf("(%ju frags, %ju blocks, %.1f%% fragmentation)\n", 454101037Smux (uintmax_t)n_ffree, (uintmax_t)n_bfree, 455101037Smux n_ffree * 100.0 / sblock.fs_dsize); 4561558Srgrimes if (debug) { 45774556Smckusick if (files < 0) 45874556Smckusick printf("%d inodes missing\n", -files); 45974556Smckusick if (blks < 0) 460100935Sphk printf("%lld blocks missing\n", -(long long)blks); 4611558Srgrimes if (duplist != NULL) { 4621558Srgrimes printf("The following duplicate blocks remain:"); 4631558Srgrimes for (dp = duplist; dp; dp = dp->next) 464100935Sphk printf(" %lld,", (long long)dp->dup); 4651558Srgrimes printf("\n"); 4661558Srgrimes } 4671558Srgrimes } 4681558Srgrimes duplist = (struct dups *)0; 4691558Srgrimes muldup = (struct dups *)0; 4701558Srgrimes inocleanup(); 4712179Sdg if (fsmodified) { 47241474Sjulian sblock.fs_time = time(NULL); 4731558Srgrimes sbdirty(); 4741558Srgrimes } 4751558Srgrimes if (cvtlevel && sblk.b_dirty) { 4768871Srgrimes /* 4771558Srgrimes * Write out the duplicate super blocks 4781558Srgrimes */ 4791558Srgrimes for (cylno = 0; cylno < sblock.fs_ncg; cylno++) 480163845Spjd blwrite(fswritefd, (char *)&sblock, 48198542Smckusick fsbtodb(&sblock, cgsblock(&sblock, cylno)), 48298542Smckusick SBLOCKSIZE); 4831558Srgrimes } 48434266Sjulian if (rerun) 48534266Sjulian resolved = 0; 48655275Speter 48755725Speter /* 488102231Strhodes * Check to see if the file system is mounted read-write. 48955725Speter */ 49074556Smckusick if (bkgrdflag == 0 && mntp != NULL && (mntp->f_flags & MNT_RDONLY) == 0) 49155275Speter resolved = 0; 49234266Sjulian ckfini(resolved); 49341474Sjulian 49441474Sjulian for (cylno = 0; cylno < sblock.fs_ncg; cylno++) 49541474Sjulian if (inostathead[cylno].il_stat != NULL) 49641474Sjulian free((char *)inostathead[cylno].il_stat); 49741474Sjulian free((char *)inostathead); 49841474Sjulian inostathead = NULL; 49941474Sjulian if (fsmodified && !preen) 5001558Srgrimes printf("\n***** FILE SYSTEM WAS MODIFIED *****\n"); 50118808Sguido if (rerun) 50218808Sguido printf("\n***** PLEASE RERUN FSCK *****\n"); 503171800Spjd if (chkdoreload(mntp) != 0) { 50441474Sjulian if (!fsmodified) 50541474Sjulian return (0); 5061558Srgrimes if (!preen) 5071558Srgrimes printf("\n***** REBOOT NOW *****\n"); 5081558Srgrimes sync(); 5091558Srgrimes return (4); 5101558Srgrimes } 5111558Srgrimes return (0); 5121558Srgrimes} 51355275Speter 514171800Spjdstatic int 515171800Spjdchkdoreload(struct statfs *mntp) 516171800Spjd{ 517172236Srodrigc struct iovec *iov; 518172236Srodrigc int iovlen; 519172236Srodrigc int fflags; 520172236Srodrigc char errmsg[255]; 521171800Spjd 522171800Spjd if (mntp == NULL) 523171800Spjd return (0); 524172236Srodrigc 525172236Srodrigc iov = NULL; 526172236Srodrigc iovlen = 0; 527172236Srodrigc errmsg[0] = '\0'; 528172236Srodrigc fflags = mntp->f_flags; 529171800Spjd /* 530171800Spjd * We modified a mounted file system. Do a mount update on 531171800Spjd * it unless it is read-write, so we can continue using it 532171800Spjd * as safely as possible. 533171800Spjd */ 534171800Spjd if (mntp->f_flags & MNT_RDONLY) { 535176822Srodrigc fflags = fflags | MNT_RELOAD; 536172236Srodrigc build_iovec(&iov, &iovlen, "fstype", "ffs", 4); 537172236Srodrigc build_iovec(&iov, &iovlen, "from", mntp->f_mntfromname, 538172236Srodrigc (size_t)-1); 539172236Srodrigc build_iovec(&iov, &iovlen, "fspath", mntp->f_mntonname, 540172236Srodrigc (size_t)-1); 541172236Srodrigc build_iovec(&iov, &iovlen, "errmsg", errmsg, 542172236Srodrigc sizeof(errmsg)); 543176822Srodrigc build_iovec(&iov, &iovlen, "update", NULL, 0); 544177905Srodrigc /* 545177905Srodrigc * XX: We need the following line until we clean up 546177905Srodrigc * nmount parsing of root mounts and NFS root mounts. 547177905Srodrigc */ 548176822Srodrigc build_iovec(&iov, &iovlen, "ro", NULL, 0); 549172236Srodrigc if (nmount(iov, iovlen, fflags) == 0) { 550171800Spjd return (0); 551171800Spjd } 552172236Srodrigc pwarn("mount reload of '%s' failed: %s %s\n\n", 553172236Srodrigc mntp->f_mntonname, strerror(errno), errmsg); 554171800Spjd return (1); 555171800Spjd } 556171800Spjd return (0); 557171800Spjd} 558171800Spjd 55955275Speter/* 56075927Smckusick * Get the mount point information for name. 56155275Speter */ 56255275Speterstatic struct statfs * 56392839Simpgetmntpt(const char *name) 56455275Speter{ 56555725Speter struct stat devstat, mntdevstat; 56655725Speter char device[sizeof(_PATH_DEV) - 1 + MNAMELEN]; 567100935Sphk char *ddevname; 56875927Smckusick struct statfs *mntbuf, *statfsp; 56975927Smckusick int i, mntsize, isdev; 57055275Speter 57175927Smckusick if (stat(name, &devstat) != 0) 57255275Speter return (NULL); 57375927Smckusick if (S_ISCHR(devstat.st_mode) || S_ISBLK(devstat.st_mode)) 57475927Smckusick isdev = 1; 57575927Smckusick else 57675927Smckusick isdev = 0; 57755275Speter mntsize = getmntinfo(&mntbuf, MNT_NOWAIT); 57855275Speter for (i = 0; i < mntsize; i++) { 57975927Smckusick statfsp = &mntbuf[i]; 580100935Sphk ddevname = statfsp->f_mntfromname; 581100935Sphk if (*ddevname != '/') { 58255725Speter strcpy(device, _PATH_DEV); 583100935Sphk strcat(device, ddevname); 58475927Smckusick strcpy(statfsp->f_mntfromname, device); 58555725Speter } 58675927Smckusick if (isdev == 0) { 58775927Smckusick if (strcmp(name, statfsp->f_mntonname)) 58875927Smckusick continue; 58975927Smckusick return (statfsp); 59075927Smckusick } 591100935Sphk if (stat(ddevname, &mntdevstat) == 0 && 59255725Speter mntdevstat.st_rdev == devstat.st_rdev) 59375927Smckusick return (statfsp); 59455275Speter } 59575927Smckusick statfsp = NULL; 59675927Smckusick return (statfsp); 59755275Speter} 59866861Sadrian 59966861Sadrianstatic void 60092839Simpusage(void) 60166861Sadrian{ 60266861Sadrian (void) fprintf(stderr, 60395258Sdes "usage: %s [-BFpfny] [-b block] [-c level] [-m mode] " 604141611Sru "filesystem ...\n", 60593103Smarkm getprogname()); 60666861Sadrian exit(1); 60766861Sadrian} 608