main.c revision 210793
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 210793 2010-08-03 09:21:13Z bz $"); 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; 84188110Smckusick inoopt = 0; 85188110Smckusick while ((ch = getopt(argc, argv, "b:Bc:CdfFm:npry")) != -1) { 861558Srgrimes switch (ch) { 871558Srgrimes case 'b': 8866861Sadrian skipclean = 0; 891558Srgrimes bflag = argtoi('b', "number", optarg, 10); 901558Srgrimes printf("Alternate super block location: %d\n", bflag); 911558Srgrimes break; 921558Srgrimes 9374556Smckusick case 'B': 9474556Smckusick bkgrdflag = 1; 9574556Smckusick break; 9674556Smckusick 971558Srgrimes case 'c': 9866861Sadrian skipclean = 0; 991558Srgrimes cvtlevel = argtoi('c', "conversion level", optarg, 10); 10098542Smckusick if (cvtlevel < 3) 10198542Smckusick errx(EEXIT, "cannot do level %d conversion", 10298542Smckusick cvtlevel); 1031558Srgrimes break; 1048871Srgrimes 1051558Srgrimes case 'd': 1061558Srgrimes debug++; 1071558Srgrimes break; 1081558Srgrimes 1092153Sdg case 'f': 11066861Sadrian skipclean = 0; 1112153Sdg break; 1122153Sdg 11375927Smckusick case 'F': 11475927Smckusick bkgrdcheck = 1; 11575927Smckusick break; 11675927Smckusick 1171558Srgrimes case 'm': 1181558Srgrimes lfmode = argtoi('m', "mode", optarg, 8); 1191558Srgrimes if (lfmode &~ 07777) 12023675Speter errx(EEXIT, "bad mode to -m: %o", lfmode); 1211558Srgrimes printf("** lost+found creation mode %o\n", lfmode); 1221558Srgrimes break; 1231558Srgrimes 1241558Srgrimes case 'n': 1251558Srgrimes nflag++; 1261558Srgrimes yflag = 0; 1271558Srgrimes break; 1281558Srgrimes 12966861Sadrian case 'p': 13066861Sadrian preen++; 131187931Sobrien /*FALLTHROUGH*/ 132187931Sobrien 133187931Sobrien case 'C': 134187931Sobrien ckclean++; 13566861Sadrian break; 13666861Sadrian 137188110Smckusick case 'r': 138188110Smckusick inoopt++; 139188110Smckusick break; 140188110Smckusick 1411558Srgrimes case 'y': 1421558Srgrimes yflag++; 1431558Srgrimes nflag = 0; 1441558Srgrimes break; 1451558Srgrimes 1461558Srgrimes default: 14766861Sadrian usage(); 1481558Srgrimes } 1491558Srgrimes } 1501558Srgrimes argc -= optind; 1511558Srgrimes argv += optind; 15266861Sadrian 15366861Sadrian if (!argc) 15466861Sadrian usage(); 15566861Sadrian 1561558Srgrimes if (signal(SIGINT, SIG_IGN) != SIG_IGN) 1571558Srgrimes (void)signal(SIGINT, catch); 158187931Sobrien if (ckclean) 1591558Srgrimes (void)signal(SIGQUIT, catchquit); 16070050Siedowse signal(SIGINFO, infohandler); 161126345Sscottl if (bkgrdflag) { 162126345Sscottl signal(SIGALRM, alarmhandler); 163126345Sscottl itimerval.it_interval.tv_sec = 5; 164126345Sscottl itimerval.it_interval.tv_usec = 0; 165126345Sscottl itimerval.it_value.tv_sec = 5; 166126345Sscottl itimerval.it_value.tv_usec = 0; 167126345Sscottl setitimer(ITIMER_REAL, &itimerval, NULL); 168126345Sscottl } 16941474Sjulian /* 17041474Sjulian * Push up our allowed memory limit so we can cope 171102231Strhodes * with huge file systems. 17241474Sjulian */ 17341474Sjulian if (getrlimit(RLIMIT_DATA, &rlimit) == 0) { 17441474Sjulian rlimit.rlim_cur = rlimit.rlim_max; 17541474Sjulian (void)setrlimit(RLIMIT_DATA, &rlimit); 17641474Sjulian } 17766861Sadrian while (argc-- > 0) 17886514Siedowse (void)checkfilesys(*argv++); 17941474Sjulian 1801558Srgrimes if (returntosingle) 18166861Sadrian ret = 2; 1821558Srgrimes exit(ret); 1831558Srgrimes} 1841558Srgrimes 18523675Speterstatic int 186100935Sphkargtoi(int flag, const char *req, const char *str, int base) 1871558Srgrimes{ 1881558Srgrimes char *cp; 1891558Srgrimes int ret; 1901558Srgrimes 1911558Srgrimes ret = (int)strtol(str, &cp, base); 1921558Srgrimes if (cp == str || *cp) 19323675Speter errx(EEXIT, "-%c flag requires a %s", flag, req); 1941558Srgrimes return (ret); 1951558Srgrimes} 1961558Srgrimes 1971558Srgrimes/* 198102231Strhodes * Check the specified file system. 1991558Srgrimes */ 2001558Srgrimes/* ARGSUSED */ 20123675Speterstatic int 20292839Simpcheckfilesys(char *filesys) 2031558Srgrimes{ 20498542Smckusick ufs2_daddr_t n_ffree, n_bfree; 2051558Srgrimes struct dups *dp; 20674556Smckusick struct statfs *mntp; 207120901Smckusick struct stat snapdir; 208120901Smckusick struct group *grp; 20998542Smckusick ufs2_daddr_t blks; 210172236Srodrigc struct iovec *iov; 211172236Srodrigc char errmsg[255]; 212172236Srodrigc int iovlen; 213171800Spjd int cylno; 21498542Smckusick ino_t files; 215101037Smux size_t size; 2161558Srgrimes 217172236Srodrigc iov = NULL; 218172236Srodrigc iovlen = 0; 219172236Srodrigc errmsg[0] = '\0'; 220172236Srodrigc 2211558Srgrimes cdevname = filesys; 222187931Sobrien if (debug && ckclean) 2231558Srgrimes pwarn("starting\n"); 22475927Smckusick /* 22575927Smckusick * Make best effort to get the disk name. Check first to see 226102231Strhodes * if it is listed among the mounted file systems. Failing that 22775927Smckusick * check to see if it is listed in /etc/fstab. 22875927Smckusick */ 22975927Smckusick mntp = getmntpt(filesys); 23075927Smckusick if (mntp != NULL) 23175927Smckusick filesys = mntp->f_mntfromname; 23275927Smckusick else 23375927Smckusick filesys = blockcheck(filesys); 23475927Smckusick /* 23575927Smckusick * If -F flag specified, check to see whether a background check 23675927Smckusick * is possible and needed. If possible and needed, exit with 23775927Smckusick * status zero. Otherwise exit with status non-zero. A non-zero 23875927Smckusick * exit status will cause a foreground check to be run. 23975927Smckusick */ 24075557Smckusick sblock_init(); 24175927Smckusick if (bkgrdcheck) { 24275927Smckusick if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0) 24375927Smckusick exit(3); /* Cannot read superblock */ 24475927Smckusick close(fsreadfd); 245207141Sjeff /* Earlier background failed or journaled */ 246207141Sjeff if (sblock.fs_flags & (FS_NEEDSFSCK | FS_SUJ)) 247207141Sjeff exit(4); 24875927Smckusick if ((sblock.fs_flags & FS_DOSOFTDEP) == 0) 24975927Smckusick exit(5); /* Not running soft updates */ 25075927Smckusick size = MIBSIZE; 25175927Smckusick if (sysctlnametomib("vfs.ffs.adjrefcnt", adjrefcnt, &size) < 0) 25275927Smckusick exit(6); /* Lacks kernel support */ 25375927Smckusick if ((mntp == NULL && sblock.fs_clean == 1) || 25475927Smckusick (mntp != NULL && (sblock.fs_flags & FS_UNCLEAN) == 0)) 25575927Smckusick exit(7); /* Filesystem clean, report it now */ 25675927Smckusick exit(0); 25775927Smckusick } 258187931Sobrien if (ckclean && skipclean) { 259163845Spjd /* 260163845Spjd * If file system is gjournaled, check it here. 261163845Spjd */ 262163845Spjd if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0) 263163845Spjd exit(3); /* Cannot read superblock */ 264163845Spjd close(fsreadfd); 265163845Spjd if ((sblock.fs_flags & FS_GJOURNAL) != 0) { 266163845Spjd //printf("GJournaled file system detected on %s.\n", 267163845Spjd // filesys); 268163845Spjd if (sblock.fs_clean == 1) { 269163845Spjd pwarn("FILE SYSTEM CLEAN; SKIPPING CHECKS\n"); 270163845Spjd exit(0); 271163845Spjd } 272163845Spjd if ((sblock.fs_flags & (FS_UNCLEAN | FS_NEEDSFSCK)) == 0) { 273163845Spjd gjournal_check(filesys); 274171800Spjd if (chkdoreload(mntp) == 0) 275171800Spjd exit(0); 276171800Spjd exit(4); 277163845Spjd } else { 278163845Spjd pfatal("UNEXPECTED INCONSISTENCY, %s\n", 279163845Spjd "CANNOT RUN FAST FSCK\n"); 280163845Spjd } 281163845Spjd } 282163845Spjd } 28374556Smckusick /* 28474556Smckusick * If we are to do a background check: 285102231Strhodes * Get the mount point information of the file system 28674556Smckusick * create snapshot file 28774556Smckusick * return created snapshot file 28874556Smckusick * if not found, clear bkgrdflag and proceed with normal fsck 28974556Smckusick */ 29074556Smckusick if (bkgrdflag) { 29174556Smckusick if (mntp == NULL) { 29274556Smckusick bkgrdflag = 0; 29375557Smckusick pfatal("NOT MOUNTED, CANNOT RUN IN BACKGROUND\n"); 29474556Smckusick } else if ((mntp->f_flags & MNT_SOFTDEP) == 0) { 29574556Smckusick bkgrdflag = 0; 29675557Smckusick pfatal("NOT USING SOFT UPDATES, %s\n", 29775557Smckusick "CANNOT RUN IN BACKGROUND"); 29874556Smckusick } else if ((mntp->f_flags & MNT_RDONLY) != 0) { 29974556Smckusick bkgrdflag = 0; 30075557Smckusick pfatal("MOUNTED READ-ONLY, CANNOT RUN IN BACKGROUND\n"); 30175557Smckusick } else if ((fsreadfd = open(filesys, O_RDONLY)) >= 0) { 30275557Smckusick if (readsb(0) != 0) { 303207141Sjeff if (sblock.fs_flags & (FS_NEEDSFSCK | FS_SUJ)) { 30475557Smckusick bkgrdflag = 0; 30575557Smckusick pfatal("UNEXPECTED INCONSISTENCY, %s\n", 30675557Smckusick "CANNOT RUN IN BACKGROUND\n"); 30775557Smckusick } 30875557Smckusick if ((sblock.fs_flags & FS_UNCLEAN) == 0 && 309187931Sobrien skipclean && ckclean) { 31075557Smckusick /* 311102231Strhodes * file system is clean; 31275557Smckusick * skip snapshot and report it clean 31375557Smckusick */ 314118302Sru pwarn("FILE SYSTEM CLEAN; %s\n", 31575557Smckusick "SKIPPING CHECKS"); 31675557Smckusick goto clean; 31775557Smckusick } 31875557Smckusick } 31975557Smckusick close(fsreadfd); 32075557Smckusick } 32175557Smckusick if (bkgrdflag) { 322120901Smckusick snprintf(snapname, sizeof snapname, "%s/.snap", 32374556Smckusick mntp->f_mntonname); 324120901Smckusick if (stat(snapname, &snapdir) < 0) { 325120901Smckusick if (errno != ENOENT) { 326120901Smckusick bkgrdflag = 0; 327120901Smckusick pfatal("CANNOT FIND %s %s: %s, %s\n", 328120901Smckusick "SNAPSHOT DIRECTORY", 329120901Smckusick snapname, strerror(errno), 330120901Smckusick "CANNOT RUN IN BACKGROUND"); 331120901Smckusick } else if ((grp = getgrnam("operator")) == 0 || 332120901Smckusick mkdir(snapname, 0770) < 0 || 333120901Smckusick chown(snapname, -1, grp->gr_gid) < 0 || 334120901Smckusick chmod(snapname, 0770) < 0) { 335120901Smckusick bkgrdflag = 0; 336120901Smckusick pfatal("CANNOT CREATE %s %s: %s, %s\n", 337120901Smckusick "SNAPSHOT DIRECTORY", 338120901Smckusick snapname, strerror(errno), 339120901Smckusick "CANNOT RUN IN BACKGROUND"); 340120901Smckusick } 341120901Smckusick } else if (!S_ISDIR(snapdir.st_mode)) { 342120901Smckusick bkgrdflag = 0; 343120901Smckusick pfatal("%s IS NOT A DIRECTORY, %s\n", snapname, 344120901Smckusick "CANNOT RUN IN BACKGROUND"); 345120901Smckusick } 346120901Smckusick } 347120901Smckusick if (bkgrdflag) { 348120901Smckusick snprintf(snapname, sizeof snapname, 349120901Smckusick "%s/.snap/fsck_snapshot", mntp->f_mntonname); 350172236Srodrigc build_iovec(&iov, &iovlen, "fstype", "ffs", 4); 351172236Srodrigc build_iovec(&iov, &iovlen, "from", snapname, 352172236Srodrigc (size_t)-1); 353172236Srodrigc build_iovec(&iov, &iovlen, "fspath", mntp->f_mntonname, 354172236Srodrigc (size_t)-1); 355172236Srodrigc build_iovec(&iov, &iovlen, "errmsg", errmsg, 356172236Srodrigc sizeof(errmsg)); 357182027Srodrigc build_iovec(&iov, &iovlen, "update", NULL, 0); 358182027Srodrigc build_iovec(&iov, &iovlen, "snapshot", NULL, 0); 359172236Srodrigc 360186471Sobrien while (nmount(iov, iovlen, mntp->f_flags) < 0) { 36174556Smckusick if (errno == EEXIST && unlink(snapname) == 0) 36274556Smckusick continue; 36374556Smckusick bkgrdflag = 0; 364172236Srodrigc pfatal("CANNOT CREATE SNAPSHOT %s: %s %s\n", 365172236Srodrigc snapname, strerror(errno), errmsg); 36674556Smckusick break; 36774556Smckusick } 36874556Smckusick if (bkgrdflag != 0) 36974556Smckusick filesys = snapname; 37074556Smckusick } 37174556Smckusick } 37274556Smckusick 37323675Speter switch (setup(filesys)) { 37423675Speter case 0: 3751558Srgrimes if (preen) 3761558Srgrimes pfatal("CAN'T CHECK FILE SYSTEM."); 37741477Sjulian return (0); 37823675Speter case -1: 37975557Smckusick clean: 38086514Siedowse pwarn("clean, %ld free ", (long)(sblock.fs_cstotal.cs_nffree + 38186514Siedowse sblock.fs_frag * sblock.fs_cstotal.cs_nbfree)); 382100935Sphk printf("(%lld frags, %lld blocks, %.1f%% fragmentation)\n", 383100935Sphk (long long)sblock.fs_cstotal.cs_nffree, 384100935Sphk (long long)sblock.fs_cstotal.cs_nbfree, 38541477Sjulian sblock.fs_cstotal.cs_nffree * 100.0 / sblock.fs_dsize); 38631904Sbde return (0); 3872153Sdg } 388207141Sjeff /* 389207141Sjeff * Determine if we can and should do journal recovery. 390207141Sjeff */ 391209408Sdelphij if ((sblock.fs_flags & FS_SUJ) == FS_SUJ) { 392209408Sdelphij if ((sblock.fs_flags & FS_NEEDSFSCK) != FS_NEEDSFSCK && skipclean) { 393210793Sbz if (preen || reply("USE JOURNAL")) { 394209408Sdelphij if (suj_check(filesys) == 0) { 395209408Sdelphij printf("\n***** FILE SYSTEM MARKED CLEAN *****\n"); 396209408Sdelphij if (chkdoreload(mntp) == 0) 397209408Sdelphij exit(0); 398209408Sdelphij exit(4); 399209408Sdelphij } 400207141Sjeff } 401209408Sdelphij printf("** Skipping journal, falling through to full fsck\n\n"); 402207141Sjeff } 403207141Sjeff /* 404207141Sjeff * Write the superblock so we don't try to recover the 405207141Sjeff * journal on another pass. 406207141Sjeff */ 407207141Sjeff sblock.fs_mtime = time(NULL); 408207141Sjeff sbdirty(); 409207141Sjeff } 41055275Speter 41155275Speter /* 41234266Sjulian * Cleared if any questions answered no. Used to decide if 41334266Sjulian * the superblock should be marked clean. 41434266Sjulian */ 41534266Sjulian resolved = 1; 41634266Sjulian /* 4171558Srgrimes * 1: scan inodes tallying blocks used 4181558Srgrimes */ 4191558Srgrimes if (preen == 0) { 4201558Srgrimes printf("** Last Mounted on %s\n", sblock.fs_fsmnt); 42174556Smckusick if (mntp != NULL && mntp->f_flags & MNT_ROOTFS) 422102231Strhodes printf("** Root file system\n"); 4231558Srgrimes printf("** Phase 1 - Check Blocks and Sizes\n"); 4241558Srgrimes } 4251558Srgrimes pass1(); 4261558Srgrimes 4271558Srgrimes /* 4281558Srgrimes * 1b: locate first references to duplicates, if any 4291558Srgrimes */ 4301558Srgrimes if (duplist) { 43134266Sjulian if (preen || usedsoftdep) 432201708Smckusick pfatal("INTERNAL ERROR: dups with %s%s%s", 433201708Smckusick preen ? "-p" : "", 434201708Smckusick (preen && usedsoftdep) ? " and " : "", 435201708Smckusick usedsoftdep ? "softupdates" : ""); 4361558Srgrimes printf("** Phase 1b - Rescan For More DUPS\n"); 4371558Srgrimes pass1b(); 4381558Srgrimes } 4391558Srgrimes 4401558Srgrimes /* 4411558Srgrimes * 2: traverse directories from root to mark all connected directories 4421558Srgrimes */ 4431558Srgrimes if (preen == 0) 4441558Srgrimes printf("** Phase 2 - Check Pathnames\n"); 4451558Srgrimes pass2(); 4461558Srgrimes 4471558Srgrimes /* 4481558Srgrimes * 3: scan inodes looking for disconnected directories 4491558Srgrimes */ 4501558Srgrimes if (preen == 0) 4511558Srgrimes printf("** Phase 3 - Check Connectivity\n"); 4521558Srgrimes pass3(); 4531558Srgrimes 4541558Srgrimes /* 4551558Srgrimes * 4: scan inodes looking for disconnected files; check reference counts 4561558Srgrimes */ 4571558Srgrimes if (preen == 0) 4581558Srgrimes printf("** Phase 4 - Check Reference Counts\n"); 4591558Srgrimes pass4(); 4601558Srgrimes 4611558Srgrimes /* 4621558Srgrimes * 5: check and repair resource counts in cylinder groups 4631558Srgrimes */ 4641558Srgrimes if (preen == 0) 4651558Srgrimes printf("** Phase 5 - Check Cyl groups\n"); 4661558Srgrimes pass5(); 4671558Srgrimes 4681558Srgrimes /* 4691558Srgrimes * print out summary statistics 4701558Srgrimes */ 4711558Srgrimes n_ffree = sblock.fs_cstotal.cs_nffree; 4721558Srgrimes n_bfree = sblock.fs_cstotal.cs_nbfree; 47374556Smckusick files = maxino - ROOTINO - sblock.fs_cstotal.cs_nifree - n_files; 47474556Smckusick blks = n_blks + 47574556Smckusick sblock.fs_ncg * (cgdmin(&sblock, 0) - cgsblock(&sblock, 0)); 47674556Smckusick blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0); 47774556Smckusick blks += howmany(sblock.fs_cssize, sblock.fs_fsize); 47874556Smckusick blks = maxfsblock - (n_ffree + sblock.fs_frag * n_bfree) - blks; 47974556Smckusick if (bkgrdflag && (files > 0 || blks > 0)) { 48074556Smckusick countdirs = sblock.fs_cstotal.cs_ndir - countdirs; 481100935Sphk pwarn("Reclaimed: %ld directories, %ld files, %lld fragments\n", 482100935Sphk countdirs, (long)files - countdirs, (long long)blks); 48374556Smckusick } 484101037Smux pwarn("%ld files, %jd used, %ju free ", 485101037Smux (long)n_files, (intmax_t)n_blks, 486101037Smux (uintmax_t)n_ffree + sblock.fs_frag * n_bfree); 487101037Smux printf("(%ju frags, %ju blocks, %.1f%% fragmentation)\n", 488101037Smux (uintmax_t)n_ffree, (uintmax_t)n_bfree, 489101037Smux n_ffree * 100.0 / sblock.fs_dsize); 4901558Srgrimes if (debug) { 49174556Smckusick if (files < 0) 49274556Smckusick printf("%d inodes missing\n", -files); 49374556Smckusick if (blks < 0) 494100935Sphk printf("%lld blocks missing\n", -(long long)blks); 4951558Srgrimes if (duplist != NULL) { 4961558Srgrimes printf("The following duplicate blocks remain:"); 4971558Srgrimes for (dp = duplist; dp; dp = dp->next) 498100935Sphk printf(" %lld,", (long long)dp->dup); 4991558Srgrimes printf("\n"); 5001558Srgrimes } 5011558Srgrimes } 5021558Srgrimes duplist = (struct dups *)0; 5031558Srgrimes muldup = (struct dups *)0; 5041558Srgrimes inocleanup(); 5052179Sdg if (fsmodified) { 50641474Sjulian sblock.fs_time = time(NULL); 5071558Srgrimes sbdirty(); 5081558Srgrimes } 5091558Srgrimes if (cvtlevel && sblk.b_dirty) { 5108871Srgrimes /* 5111558Srgrimes * Write out the duplicate super blocks 5121558Srgrimes */ 5131558Srgrimes for (cylno = 0; cylno < sblock.fs_ncg; cylno++) 514163845Spjd blwrite(fswritefd, (char *)&sblock, 51598542Smckusick fsbtodb(&sblock, cgsblock(&sblock, cylno)), 51698542Smckusick SBLOCKSIZE); 5171558Srgrimes } 51834266Sjulian if (rerun) 51934266Sjulian resolved = 0; 52055275Speter 52155725Speter /* 522102231Strhodes * Check to see if the file system is mounted read-write. 52355725Speter */ 52474556Smckusick if (bkgrdflag == 0 && mntp != NULL && (mntp->f_flags & MNT_RDONLY) == 0) 52555275Speter resolved = 0; 52634266Sjulian ckfini(resolved); 52741474Sjulian 52841474Sjulian for (cylno = 0; cylno < sblock.fs_ncg; cylno++) 52941474Sjulian if (inostathead[cylno].il_stat != NULL) 53041474Sjulian free((char *)inostathead[cylno].il_stat); 53141474Sjulian free((char *)inostathead); 53241474Sjulian inostathead = NULL; 53341474Sjulian if (fsmodified && !preen) 5341558Srgrimes printf("\n***** FILE SYSTEM WAS MODIFIED *****\n"); 53518808Sguido if (rerun) 53618808Sguido printf("\n***** PLEASE RERUN FSCK *****\n"); 537171800Spjd if (chkdoreload(mntp) != 0) { 53841474Sjulian if (!fsmodified) 53941474Sjulian return (0); 5401558Srgrimes if (!preen) 5411558Srgrimes printf("\n***** REBOOT NOW *****\n"); 5421558Srgrimes sync(); 5431558Srgrimes return (4); 5441558Srgrimes } 5451558Srgrimes return (0); 5461558Srgrimes} 54755275Speter 548171800Spjdstatic int 549171800Spjdchkdoreload(struct statfs *mntp) 550171800Spjd{ 551172236Srodrigc struct iovec *iov; 552172236Srodrigc int iovlen; 553172236Srodrigc char errmsg[255]; 554171800Spjd 555171800Spjd if (mntp == NULL) 556171800Spjd return (0); 557172236Srodrigc 558172236Srodrigc iov = NULL; 559172236Srodrigc iovlen = 0; 560172236Srodrigc errmsg[0] = '\0'; 561171800Spjd /* 562171800Spjd * We modified a mounted file system. Do a mount update on 563171800Spjd * it unless it is read-write, so we can continue using it 564171800Spjd * as safely as possible. 565171800Spjd */ 566171800Spjd if (mntp->f_flags & MNT_RDONLY) { 567172236Srodrigc build_iovec(&iov, &iovlen, "fstype", "ffs", 4); 568172236Srodrigc build_iovec(&iov, &iovlen, "from", mntp->f_mntfromname, 569172236Srodrigc (size_t)-1); 570172236Srodrigc build_iovec(&iov, &iovlen, "fspath", mntp->f_mntonname, 571172236Srodrigc (size_t)-1); 572172236Srodrigc build_iovec(&iov, &iovlen, "errmsg", errmsg, 573172236Srodrigc sizeof(errmsg)); 574176822Srodrigc build_iovec(&iov, &iovlen, "update", NULL, 0); 575182027Srodrigc build_iovec(&iov, &iovlen, "reload", NULL, 0); 576177905Srodrigc /* 577177905Srodrigc * XX: We need the following line until we clean up 578177905Srodrigc * nmount parsing of root mounts and NFS root mounts. 579177905Srodrigc */ 580176822Srodrigc build_iovec(&iov, &iovlen, "ro", NULL, 0); 581186471Sobrien if (nmount(iov, iovlen, mntp->f_flags) == 0) { 582171800Spjd return (0); 583171800Spjd } 584172236Srodrigc pwarn("mount reload of '%s' failed: %s %s\n\n", 585172236Srodrigc mntp->f_mntonname, strerror(errno), errmsg); 586171800Spjd return (1); 587171800Spjd } 588171800Spjd return (0); 589171800Spjd} 590171800Spjd 59155275Speter/* 59275927Smckusick * Get the mount point information for name. 59355275Speter */ 59455275Speterstatic struct statfs * 59592839Simpgetmntpt(const char *name) 59655275Speter{ 59755725Speter struct stat devstat, mntdevstat; 59855725Speter char device[sizeof(_PATH_DEV) - 1 + MNAMELEN]; 599100935Sphk char *ddevname; 60075927Smckusick struct statfs *mntbuf, *statfsp; 60175927Smckusick int i, mntsize, isdev; 60255275Speter 60375927Smckusick if (stat(name, &devstat) != 0) 60455275Speter return (NULL); 60575927Smckusick if (S_ISCHR(devstat.st_mode) || S_ISBLK(devstat.st_mode)) 60675927Smckusick isdev = 1; 60775927Smckusick else 60875927Smckusick isdev = 0; 60955275Speter mntsize = getmntinfo(&mntbuf, MNT_NOWAIT); 61055275Speter for (i = 0; i < mntsize; i++) { 61175927Smckusick statfsp = &mntbuf[i]; 612100935Sphk ddevname = statfsp->f_mntfromname; 613100935Sphk if (*ddevname != '/') { 61455725Speter strcpy(device, _PATH_DEV); 615100935Sphk strcat(device, ddevname); 61675927Smckusick strcpy(statfsp->f_mntfromname, device); 61755725Speter } 61875927Smckusick if (isdev == 0) { 61975927Smckusick if (strcmp(name, statfsp->f_mntonname)) 62075927Smckusick continue; 62175927Smckusick return (statfsp); 62275927Smckusick } 623100935Sphk if (stat(ddevname, &mntdevstat) == 0 && 62455725Speter mntdevstat.st_rdev == devstat.st_rdev) 62575927Smckusick return (statfsp); 62655275Speter } 62775927Smckusick statfsp = NULL; 62875927Smckusick return (statfsp); 62955275Speter} 63066861Sadrian 63166861Sadrianstatic void 63292839Simpusage(void) 63366861Sadrian{ 63466861Sadrian (void) fprintf(stderr, 635188110Smckusick "usage: %s [-BFprfny] [-b block] [-c level] [-m mode] " 636141611Sru "filesystem ...\n", 63793103Smarkm getprogname()); 63866861Sadrian exit(1); 63966861Sadrian} 640