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> 5124adb851SCraig Rodrigues #include <sys/uio.h> 521c85e6a3SKirk McKusick #include <sys/disklabel.h> 53780a5c1eSPeter Wemm 548fae3551SRodney W. Grimes #include <ufs/ufs/dinode.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> 6124adb851SCraig Rodrigues #include <mntopts.h> 62d0e1503bSPeter Wemm #include <paths.h> 6384fc0d7eSMaxime Henrion #include <stdint.h> 64bf58d635SIan Dowse #include <string.h> 65780a5c1eSPeter Wemm 668fae3551SRodney W. Grimes #include "fsck.h" 67780a5c1eSPeter Wemm 68b70cd7eeSWarner Losh static void usage(void) __dead2; 69599304a4SPoul-Henning Kamp static int argtoi(int flag, const char *req, const char *str, int base); 70b70cd7eeSWarner Losh static int checkfilesys(char *filesys); 71db3f838dSPawel Jakub Dawidek static int chkdoreload(struct statfs *mntp); 72b70cd7eeSWarner Losh static struct statfs *getmntpt(const char *); 738fae3551SRodney W. Grimes 7431f4ab50SBruce Evans int 75b70cd7eeSWarner Losh main(int argc, char *argv[]) 768fae3551SRodney W. Grimes { 778fae3551SRodney W. Grimes int ch; 78d33e92f9SJulian Elischer struct rlimit rlimit; 791660ae87SScott Long struct itimerval itimerval; 809ea6f4f0SAdrian Chadd int ret = 0; 818fae3551SRodney W. Grimes 828fae3551SRodney W. Grimes sync(); 839ea6f4f0SAdrian Chadd skipclean = 1; 84910b491eSKirk McKusick inoopt = 0; 85910b491eSKirk McKusick while ((ch = getopt(argc, argv, "b:Bc:CdfFm:npry")) != -1) { 868fae3551SRodney W. Grimes switch (ch) { 878fae3551SRodney W. Grimes case 'b': 889ea6f4f0SAdrian Chadd skipclean = 0; 898fae3551SRodney W. Grimes bflag = argtoi('b', "number", optarg, 10); 908fae3551SRodney W. Grimes printf("Alternate super block location: %d\n", bflag); 918fae3551SRodney W. Grimes break; 928fae3551SRodney W. Grimes 937578c6abSKirk McKusick case 'B': 947578c6abSKirk McKusick bkgrdflag = 1; 957578c6abSKirk McKusick break; 967578c6abSKirk McKusick 978fae3551SRodney W. Grimes case 'c': 989ea6f4f0SAdrian Chadd skipclean = 0; 998fae3551SRodney W. Grimes cvtlevel = argtoi('c', "conversion level", optarg, 10); 1001c85e6a3SKirk McKusick if (cvtlevel < 3) 1011c85e6a3SKirk McKusick errx(EEXIT, "cannot do level %d conversion", 1021c85e6a3SKirk McKusick cvtlevel); 1038fae3551SRodney W. Grimes break; 1048fae3551SRodney W. Grimes 1058fae3551SRodney W. Grimes case 'd': 1068fae3551SRodney W. Grimes debug++; 1078fae3551SRodney W. Grimes break; 1088fae3551SRodney W. Grimes 10941cee58cSDavid Greenman case 'f': 1109ea6f4f0SAdrian Chadd skipclean = 0; 1118fae3551SRodney W. Grimes break; 1128fae3551SRodney W. Grimes 11315fca934SKirk McKusick case 'F': 11415fca934SKirk McKusick bkgrdcheck = 1; 11515fca934SKirk McKusick break; 11615fca934SKirk McKusick 1178fae3551SRodney W. Grimes case 'm': 1188fae3551SRodney W. Grimes lfmode = argtoi('m', "mode", optarg, 8); 1198fae3551SRodney W. Grimes if (lfmode &~ 07777) 120780a5c1eSPeter Wemm errx(EEXIT, "bad mode to -m: %o", lfmode); 1218fae3551SRodney W. Grimes printf("** lost+found creation mode %o\n", lfmode); 1228fae3551SRodney W. Grimes break; 1238fae3551SRodney W. Grimes 1248fae3551SRodney W. Grimes case 'n': 1258fae3551SRodney W. Grimes nflag++; 1268fae3551SRodney W. Grimes yflag = 0; 1278fae3551SRodney W. Grimes break; 1288fae3551SRodney W. Grimes 1299ea6f4f0SAdrian Chadd case 'p': 1309ea6f4f0SAdrian Chadd preen++; 131111a5220SDavid E. O'Brien /*FALLTHROUGH*/ 132111a5220SDavid E. O'Brien 133111a5220SDavid E. O'Brien case 'C': 134111a5220SDavid E. O'Brien ckclean++; 1359ea6f4f0SAdrian Chadd break; 1369ea6f4f0SAdrian Chadd 137910b491eSKirk McKusick case 'r': 138910b491eSKirk McKusick inoopt++; 139910b491eSKirk McKusick break; 140910b491eSKirk McKusick 1418fae3551SRodney W. Grimes case 'y': 1428fae3551SRodney W. Grimes yflag++; 1438fae3551SRodney W. Grimes nflag = 0; 1448fae3551SRodney W. Grimes break; 1458fae3551SRodney W. Grimes 1468fae3551SRodney W. Grimes default: 1479ea6f4f0SAdrian Chadd usage(); 1488fae3551SRodney W. Grimes } 1498fae3551SRodney W. Grimes } 1508fae3551SRodney W. Grimes argc -= optind; 1518fae3551SRodney W. Grimes argv += optind; 1529ea6f4f0SAdrian Chadd 1539ea6f4f0SAdrian Chadd if (!argc) 1549ea6f4f0SAdrian Chadd usage(); 1559ea6f4f0SAdrian Chadd 1568fae3551SRodney W. Grimes if (signal(SIGINT, SIG_IGN) != SIG_IGN) 1578fae3551SRodney W. Grimes (void)signal(SIGINT, catch); 158111a5220SDavid E. O'Brien if (ckclean) 1598fae3551SRodney W. Grimes (void)signal(SIGQUIT, catchquit); 1606db798caSIan Dowse signal(SIGINFO, infohandler); 1611660ae87SScott Long if (bkgrdflag) { 1621660ae87SScott Long signal(SIGALRM, alarmhandler); 1631660ae87SScott Long itimerval.it_interval.tv_sec = 5; 1641660ae87SScott Long itimerval.it_interval.tv_usec = 0; 1651660ae87SScott Long itimerval.it_value.tv_sec = 5; 1661660ae87SScott Long itimerval.it_value.tv_usec = 0; 1671660ae87SScott Long setitimer(ITIMER_REAL, &itimerval, NULL); 1681660ae87SScott Long } 169d33e92f9SJulian Elischer /* 170d33e92f9SJulian Elischer * Push up our allowed memory limit so we can cope 171d33e92f9SJulian Elischer * with huge file systems. 172d33e92f9SJulian Elischer */ 173d33e92f9SJulian Elischer if (getrlimit(RLIMIT_DATA, &rlimit) == 0) { 174d33e92f9SJulian Elischer rlimit.rlim_cur = rlimit.rlim_max; 175d33e92f9SJulian Elischer (void)setrlimit(RLIMIT_DATA, &rlimit); 176d33e92f9SJulian Elischer } 1779ea6f4f0SAdrian Chadd while (argc-- > 0) 178bf58d635SIan Dowse (void)checkfilesys(*argv++); 179d33e92f9SJulian Elischer 1808fae3551SRodney W. Grimes if (returntosingle) 1819ea6f4f0SAdrian Chadd ret = 2; 1828fae3551SRodney W. Grimes exit(ret); 1838fae3551SRodney W. Grimes } 1848fae3551SRodney W. Grimes 185780a5c1eSPeter Wemm static int 186599304a4SPoul-Henning Kamp argtoi(int flag, const char *req, const char *str, int base) 1878fae3551SRodney W. Grimes { 1888fae3551SRodney W. Grimes char *cp; 1898fae3551SRodney W. Grimes int ret; 1908fae3551SRodney W. Grimes 1918fae3551SRodney W. Grimes ret = (int)strtol(str, &cp, base); 1928fae3551SRodney W. Grimes if (cp == str || *cp) 193780a5c1eSPeter Wemm errx(EEXIT, "-%c flag requires a %s", flag, req); 1948fae3551SRodney W. Grimes return (ret); 1958fae3551SRodney W. Grimes } 1968fae3551SRodney W. Grimes 1978fae3551SRodney W. Grimes /* 1988fae3551SRodney W. Grimes * Check the specified file system. 1998fae3551SRodney W. Grimes */ 2008fae3551SRodney W. Grimes /* ARGSUSED */ 201780a5c1eSPeter Wemm static int 202b70cd7eeSWarner Losh checkfilesys(char *filesys) 2038fae3551SRodney W. Grimes { 2041c85e6a3SKirk McKusick ufs2_daddr_t n_ffree, n_bfree; 2058fae3551SRodney W. Grimes struct dups *dp; 2067578c6abSKirk McKusick struct statfs *mntp; 207ff76fc7fSKirk McKusick struct stat snapdir; 208ff76fc7fSKirk McKusick struct group *grp; 2091c85e6a3SKirk McKusick ufs2_daddr_t blks; 21024adb851SCraig Rodrigues struct iovec *iov; 21124adb851SCraig Rodrigues char errmsg[255]; 21224adb851SCraig Rodrigues int iovlen; 213db3f838dSPawel Jakub Dawidek int cylno; 2141c85e6a3SKirk McKusick ino_t files; 21584fc0d7eSMaxime Henrion size_t size; 2168fae3551SRodney W. Grimes 21724adb851SCraig Rodrigues iov = NULL; 21824adb851SCraig Rodrigues iovlen = 0; 21924adb851SCraig Rodrigues errmsg[0] = '\0'; 22024adb851SCraig Rodrigues 2218fae3551SRodney W. Grimes cdevname = filesys; 222111a5220SDavid E. O'Brien if (debug && ckclean) 2238fae3551SRodney W. Grimes pwarn("starting\n"); 22415fca934SKirk McKusick /* 22515fca934SKirk McKusick * Make best effort to get the disk name. Check first to see 22615fca934SKirk McKusick * if it is listed among the mounted file systems. Failing that 22715fca934SKirk McKusick * check to see if it is listed in /etc/fstab. 22815fca934SKirk McKusick */ 22915fca934SKirk McKusick mntp = getmntpt(filesys); 23015fca934SKirk McKusick if (mntp != NULL) 23115fca934SKirk McKusick filesys = mntp->f_mntfromname; 23215fca934SKirk McKusick else 23315fca934SKirk McKusick filesys = blockcheck(filesys); 23415fca934SKirk McKusick /* 23515fca934SKirk McKusick * If -F flag specified, check to see whether a background check 23615fca934SKirk McKusick * is possible and needed. If possible and needed, exit with 23715fca934SKirk McKusick * status zero. Otherwise exit with status non-zero. A non-zero 23815fca934SKirk McKusick * exit status will cause a foreground check to be run. 23915fca934SKirk McKusick */ 24038375c40SKirk McKusick sblock_init(); 24115fca934SKirk McKusick if (bkgrdcheck) { 24215fca934SKirk McKusick if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0) 24315fca934SKirk McKusick exit(3); /* Cannot read superblock */ 24415fca934SKirk McKusick close(fsreadfd); 245113db2ddSJeff Roberson /* Earlier background failed or journaled */ 246113db2ddSJeff Roberson if (sblock.fs_flags & (FS_NEEDSFSCK | FS_SUJ)) 247113db2ddSJeff Roberson exit(4); 24815fca934SKirk McKusick if ((sblock.fs_flags & FS_DOSOFTDEP) == 0) 24915fca934SKirk McKusick exit(5); /* Not running soft updates */ 25015fca934SKirk McKusick size = MIBSIZE; 25115fca934SKirk McKusick if (sysctlnametomib("vfs.ffs.adjrefcnt", adjrefcnt, &size) < 0) 25215fca934SKirk McKusick exit(6); /* Lacks kernel support */ 25315fca934SKirk McKusick if ((mntp == NULL && sblock.fs_clean == 1) || 25415fca934SKirk McKusick (mntp != NULL && (sblock.fs_flags & FS_UNCLEAN) == 0)) 25515fca934SKirk McKusick exit(7); /* Filesystem clean, report it now */ 25615fca934SKirk McKusick exit(0); 25715fca934SKirk McKusick } 258111a5220SDavid E. O'Brien if (ckclean && skipclean) { 259aef8d244SPawel Jakub Dawidek /* 260aef8d244SPawel Jakub Dawidek * If file system is gjournaled, check it here. 261aef8d244SPawel Jakub Dawidek */ 262aef8d244SPawel Jakub Dawidek if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0) 263aef8d244SPawel Jakub Dawidek exit(3); /* Cannot read superblock */ 264aef8d244SPawel Jakub Dawidek close(fsreadfd); 265aef8d244SPawel Jakub Dawidek if ((sblock.fs_flags & FS_GJOURNAL) != 0) { 266aef8d244SPawel Jakub Dawidek //printf("GJournaled file system detected on %s.\n", 267aef8d244SPawel Jakub Dawidek // filesys); 268aef8d244SPawel Jakub Dawidek if (sblock.fs_clean == 1) { 269aef8d244SPawel Jakub Dawidek pwarn("FILE SYSTEM CLEAN; SKIPPING CHECKS\n"); 270aef8d244SPawel Jakub Dawidek exit(0); 271aef8d244SPawel Jakub Dawidek } 272aef8d244SPawel Jakub Dawidek if ((sblock.fs_flags & (FS_UNCLEAN | FS_NEEDSFSCK)) == 0) { 273aef8d244SPawel Jakub Dawidek gjournal_check(filesys); 274db3f838dSPawel Jakub Dawidek if (chkdoreload(mntp) == 0) 275aef8d244SPawel Jakub Dawidek exit(0); 276db3f838dSPawel Jakub Dawidek exit(4); 277aef8d244SPawel Jakub Dawidek } else { 278aef8d244SPawel Jakub Dawidek pfatal("UNEXPECTED INCONSISTENCY, %s\n", 279aef8d244SPawel Jakub Dawidek "CANNOT RUN FAST FSCK\n"); 280aef8d244SPawel Jakub Dawidek } 281aef8d244SPawel Jakub Dawidek } 282aef8d244SPawel Jakub Dawidek } 2837578c6abSKirk McKusick /* 2847578c6abSKirk McKusick * If we are to do a background check: 2857578c6abSKirk McKusick * Get the mount point information of the file system 2867578c6abSKirk McKusick * create snapshot file 2877578c6abSKirk McKusick * return created snapshot file 2887578c6abSKirk McKusick * if not found, clear bkgrdflag and proceed with normal fsck 2897578c6abSKirk McKusick */ 2907578c6abSKirk McKusick if (bkgrdflag) { 2917578c6abSKirk McKusick if (mntp == NULL) { 2927578c6abSKirk McKusick bkgrdflag = 0; 29338375c40SKirk McKusick pfatal("NOT MOUNTED, CANNOT RUN IN BACKGROUND\n"); 2947578c6abSKirk McKusick } else if ((mntp->f_flags & MNT_SOFTDEP) == 0) { 2957578c6abSKirk McKusick bkgrdflag = 0; 29638375c40SKirk McKusick pfatal("NOT USING SOFT UPDATES, %s\n", 29738375c40SKirk McKusick "CANNOT RUN IN BACKGROUND"); 2987578c6abSKirk McKusick } else if ((mntp->f_flags & MNT_RDONLY) != 0) { 2997578c6abSKirk McKusick bkgrdflag = 0; 30038375c40SKirk McKusick pfatal("MOUNTED READ-ONLY, CANNOT RUN IN BACKGROUND\n"); 30138375c40SKirk McKusick } else if ((fsreadfd = open(filesys, O_RDONLY)) >= 0) { 30238375c40SKirk McKusick if (readsb(0) != 0) { 303113db2ddSJeff Roberson if (sblock.fs_flags & (FS_NEEDSFSCK | FS_SUJ)) { 30438375c40SKirk McKusick bkgrdflag = 0; 30538375c40SKirk McKusick pfatal("UNEXPECTED INCONSISTENCY, %s\n", 30638375c40SKirk McKusick "CANNOT RUN IN BACKGROUND\n"); 30738375c40SKirk McKusick } 30838375c40SKirk McKusick if ((sblock.fs_flags & FS_UNCLEAN) == 0 && 309111a5220SDavid E. O'Brien skipclean && ckclean) { 31038375c40SKirk McKusick /* 31138375c40SKirk McKusick * file system is clean; 31238375c40SKirk McKusick * skip snapshot and report it clean 31338375c40SKirk McKusick */ 31438375c40SKirk McKusick pwarn("FILE SYSTEM CLEAN; %s\n", 31538375c40SKirk McKusick "SKIPPING CHECKS"); 31638375c40SKirk McKusick goto clean; 31738375c40SKirk McKusick } 31838375c40SKirk McKusick } 31938375c40SKirk McKusick close(fsreadfd); 32038375c40SKirk McKusick } 32138375c40SKirk McKusick if (bkgrdflag) { 322ff76fc7fSKirk McKusick snprintf(snapname, sizeof snapname, "%s/.snap", 3237578c6abSKirk McKusick mntp->f_mntonname); 324ff76fc7fSKirk McKusick if (stat(snapname, &snapdir) < 0) { 325ff76fc7fSKirk McKusick if (errno != ENOENT) { 326ff76fc7fSKirk McKusick bkgrdflag = 0; 327ff76fc7fSKirk McKusick pfatal("CANNOT FIND %s %s: %s, %s\n", 328ff76fc7fSKirk McKusick "SNAPSHOT DIRECTORY", 329ff76fc7fSKirk McKusick snapname, strerror(errno), 330ff76fc7fSKirk McKusick "CANNOT RUN IN BACKGROUND"); 331ff76fc7fSKirk McKusick } else if ((grp = getgrnam("operator")) == 0 || 332ff76fc7fSKirk McKusick mkdir(snapname, 0770) < 0 || 333ff76fc7fSKirk McKusick chown(snapname, -1, grp->gr_gid) < 0 || 334ff76fc7fSKirk McKusick chmod(snapname, 0770) < 0) { 335ff76fc7fSKirk McKusick bkgrdflag = 0; 336ff76fc7fSKirk McKusick pfatal("CANNOT CREATE %s %s: %s, %s\n", 337ff76fc7fSKirk McKusick "SNAPSHOT DIRECTORY", 338ff76fc7fSKirk McKusick snapname, strerror(errno), 339ff76fc7fSKirk McKusick "CANNOT RUN IN BACKGROUND"); 340ff76fc7fSKirk McKusick } 341ff76fc7fSKirk McKusick } else if (!S_ISDIR(snapdir.st_mode)) { 342ff76fc7fSKirk McKusick bkgrdflag = 0; 343ff76fc7fSKirk McKusick pfatal("%s IS NOT A DIRECTORY, %s\n", snapname, 344ff76fc7fSKirk McKusick "CANNOT RUN IN BACKGROUND"); 345ff76fc7fSKirk McKusick } 346ff76fc7fSKirk McKusick } 347ff76fc7fSKirk McKusick if (bkgrdflag) { 348ff76fc7fSKirk McKusick snprintf(snapname, sizeof snapname, 349ff76fc7fSKirk McKusick "%s/.snap/fsck_snapshot", mntp->f_mntonname); 35024adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "fstype", "ffs", 4); 35124adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "from", snapname, 35224adb851SCraig Rodrigues (size_t)-1); 35324adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "fspath", mntp->f_mntonname, 35424adb851SCraig Rodrigues (size_t)-1); 35524adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "errmsg", errmsg, 35624adb851SCraig Rodrigues sizeof(errmsg)); 3576910e995SCraig Rodrigues build_iovec(&iov, &iovlen, "update", NULL, 0); 3586910e995SCraig Rodrigues build_iovec(&iov, &iovlen, "snapshot", NULL, 0); 35924adb851SCraig Rodrigues 360defc9d50SDavid E. O'Brien while (nmount(iov, iovlen, mntp->f_flags) < 0) { 3617578c6abSKirk McKusick if (errno == EEXIST && unlink(snapname) == 0) 3627578c6abSKirk McKusick continue; 3637578c6abSKirk McKusick bkgrdflag = 0; 36424adb851SCraig Rodrigues pfatal("CANNOT CREATE SNAPSHOT %s: %s %s\n", 36524adb851SCraig Rodrigues snapname, strerror(errno), errmsg); 3667578c6abSKirk McKusick break; 3677578c6abSKirk McKusick } 3687578c6abSKirk McKusick if (bkgrdflag != 0) 3697578c6abSKirk McKusick filesys = snapname; 3707578c6abSKirk McKusick } 3717578c6abSKirk McKusick } 3727578c6abSKirk McKusick 373780a5c1eSPeter Wemm switch (setup(filesys)) { 374780a5c1eSPeter Wemm case 0: 3758fae3551SRodney W. Grimes if (preen) 3768fae3551SRodney W. Grimes pfatal("CAN'T CHECK FILE SYSTEM."); 3776b100474SJulian Elischer return (0); 378780a5c1eSPeter Wemm case -1: 37938375c40SKirk McKusick clean: 380bf58d635SIan Dowse pwarn("clean, %ld free ", (long)(sblock.fs_cstotal.cs_nffree + 381bf58d635SIan Dowse sblock.fs_frag * sblock.fs_cstotal.cs_nbfree)); 382599304a4SPoul-Henning Kamp printf("(%lld frags, %lld blocks, %.1f%% fragmentation)\n", 383599304a4SPoul-Henning Kamp (long long)sblock.fs_cstotal.cs_nffree, 384599304a4SPoul-Henning Kamp (long long)sblock.fs_cstotal.cs_nbfree, 3856b100474SJulian Elischer sblock.fs_cstotal.cs_nffree * 100.0 / sblock.fs_dsize); 38641cee58cSDavid Greenman return (0); 38741cee58cSDavid Greenman } 388113db2ddSJeff Roberson /* 389113db2ddSJeff Roberson * Determine if we can and should do journal recovery. 390113db2ddSJeff Roberson */ 391edad6026SXin LI if ((sblock.fs_flags & FS_SUJ) == FS_SUJ) { 392edad6026SXin LI if ((sblock.fs_flags & FS_NEEDSFSCK) != FS_NEEDSFSCK && skipclean) { 393113db2ddSJeff Roberson if (preen || reply("USE JOURNAL?")) { 394113db2ddSJeff Roberson if (suj_check(filesys) == 0) { 395edad6026SXin LI printf("\n***** FILE SYSTEM MARKED CLEAN *****\n"); 396113db2ddSJeff Roberson if (chkdoreload(mntp) == 0) 397113db2ddSJeff Roberson exit(0); 398113db2ddSJeff Roberson exit(4); 399113db2ddSJeff Roberson } 400113db2ddSJeff Roberson } 401edad6026SXin LI printf("** Skipping journal, falling through to full fsck\n\n"); 402edad6026SXin LI } 403113db2ddSJeff Roberson /* 404113db2ddSJeff Roberson * Write the superblock so we don't try to recover the 405113db2ddSJeff Roberson * journal on another pass. 406113db2ddSJeff Roberson */ 407113db2ddSJeff Roberson sblock.fs_mtime = time(NULL); 408113db2ddSJeff Roberson sbdirty(); 409113db2ddSJeff Roberson } 4106b100474SJulian Elischer 4118fae3551SRodney W. Grimes /* 412b1897c19SJulian Elischer * Cleared if any questions answered no. Used to decide if 413b1897c19SJulian Elischer * the superblock should be marked clean. 414b1897c19SJulian Elischer */ 415b1897c19SJulian Elischer resolved = 1; 416b1897c19SJulian Elischer /* 4178fae3551SRodney W. Grimes * 1: scan inodes tallying blocks used 4188fae3551SRodney W. Grimes */ 4198fae3551SRodney W. Grimes if (preen == 0) { 4208fae3551SRodney W. Grimes printf("** Last Mounted on %s\n", sblock.fs_fsmnt); 4217578c6abSKirk McKusick if (mntp != NULL && mntp->f_flags & MNT_ROOTFS) 4228fae3551SRodney W. Grimes printf("** Root file system\n"); 4238fae3551SRodney W. Grimes printf("** Phase 1 - Check Blocks and Sizes\n"); 4248fae3551SRodney W. Grimes } 4258fae3551SRodney W. Grimes pass1(); 4268fae3551SRodney W. Grimes 4278fae3551SRodney W. Grimes /* 4288fae3551SRodney W. Grimes * 1b: locate first references to duplicates, if any 4298fae3551SRodney W. Grimes */ 4308fae3551SRodney W. Grimes if (duplist) { 431b1897c19SJulian Elischer if (preen || usedsoftdep) 43221be55ccSKirk McKusick pfatal("INTERNAL ERROR: dups with %s%s%s", 43321be55ccSKirk McKusick preen ? "-p" : "", 43421be55ccSKirk McKusick (preen && usedsoftdep) ? " and " : "", 43521be55ccSKirk McKusick usedsoftdep ? "softupdates" : ""); 4368fae3551SRodney W. Grimes printf("** Phase 1b - Rescan For More DUPS\n"); 4378fae3551SRodney W. Grimes pass1b(); 4388fae3551SRodney W. Grimes } 4398fae3551SRodney W. Grimes 4408fae3551SRodney W. Grimes /* 4418fae3551SRodney W. Grimes * 2: traverse directories from root to mark all connected directories 4428fae3551SRodney W. Grimes */ 4438fae3551SRodney W. Grimes if (preen == 0) 4448fae3551SRodney W. Grimes printf("** Phase 2 - Check Pathnames\n"); 4458fae3551SRodney W. Grimes pass2(); 4468fae3551SRodney W. Grimes 4478fae3551SRodney W. Grimes /* 4488fae3551SRodney W. Grimes * 3: scan inodes looking for disconnected directories 4498fae3551SRodney W. Grimes */ 4508fae3551SRodney W. Grimes if (preen == 0) 4518fae3551SRodney W. Grimes printf("** Phase 3 - Check Connectivity\n"); 4528fae3551SRodney W. Grimes pass3(); 4538fae3551SRodney W. Grimes 4548fae3551SRodney W. Grimes /* 4558fae3551SRodney W. Grimes * 4: scan inodes looking for disconnected files; check reference counts 4568fae3551SRodney W. Grimes */ 4578fae3551SRodney W. Grimes if (preen == 0) 4588fae3551SRodney W. Grimes printf("** Phase 4 - Check Reference Counts\n"); 4598fae3551SRodney W. Grimes pass4(); 4608fae3551SRodney W. Grimes 4618fae3551SRodney W. Grimes /* 4628fae3551SRodney W. Grimes * 5: check and repair resource counts in cylinder groups 4638fae3551SRodney W. Grimes */ 4648fae3551SRodney W. Grimes if (preen == 0) 4658fae3551SRodney W. Grimes printf("** Phase 5 - Check Cyl groups\n"); 4668fae3551SRodney W. Grimes pass5(); 4678fae3551SRodney W. Grimes 4688fae3551SRodney W. Grimes /* 4698fae3551SRodney W. Grimes * print out summary statistics 4708fae3551SRodney W. Grimes */ 4718fae3551SRodney W. Grimes n_ffree = sblock.fs_cstotal.cs_nffree; 4728fae3551SRodney W. Grimes n_bfree = sblock.fs_cstotal.cs_nbfree; 4737578c6abSKirk McKusick files = maxino - ROOTINO - sblock.fs_cstotal.cs_nifree - n_files; 4747578c6abSKirk McKusick blks = n_blks + 4757578c6abSKirk McKusick sblock.fs_ncg * (cgdmin(&sblock, 0) - cgsblock(&sblock, 0)); 4767578c6abSKirk McKusick blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0); 4777578c6abSKirk McKusick blks += howmany(sblock.fs_cssize, sblock.fs_fsize); 4787578c6abSKirk McKusick blks = maxfsblock - (n_ffree + sblock.fs_frag * n_bfree) - blks; 4797578c6abSKirk McKusick if (bkgrdflag && (files > 0 || blks > 0)) { 4807578c6abSKirk McKusick countdirs = sblock.fs_cstotal.cs_ndir - countdirs; 481599304a4SPoul-Henning Kamp pwarn("Reclaimed: %ld directories, %ld files, %lld fragments\n", 482599304a4SPoul-Henning Kamp countdirs, (long)files - countdirs, (long long)blks); 4837578c6abSKirk McKusick } 48484fc0d7eSMaxime Henrion pwarn("%ld files, %jd used, %ju free ", 48584fc0d7eSMaxime Henrion (long)n_files, (intmax_t)n_blks, 48684fc0d7eSMaxime Henrion (uintmax_t)n_ffree + sblock.fs_frag * n_bfree); 48784fc0d7eSMaxime Henrion printf("(%ju frags, %ju blocks, %.1f%% fragmentation)\n", 48884fc0d7eSMaxime Henrion (uintmax_t)n_ffree, (uintmax_t)n_bfree, 48984fc0d7eSMaxime Henrion n_ffree * 100.0 / sblock.fs_dsize); 4908fae3551SRodney W. Grimes if (debug) { 4917578c6abSKirk McKusick if (files < 0) 4927578c6abSKirk McKusick printf("%d inodes missing\n", -files); 4937578c6abSKirk McKusick if (blks < 0) 494599304a4SPoul-Henning Kamp printf("%lld blocks missing\n", -(long long)blks); 4958fae3551SRodney W. Grimes if (duplist != NULL) { 4968fae3551SRodney W. Grimes printf("The following duplicate blocks remain:"); 4978fae3551SRodney W. Grimes for (dp = duplist; dp; dp = dp->next) 498599304a4SPoul-Henning Kamp printf(" %lld,", (long long)dp->dup); 4998fae3551SRodney W. Grimes printf("\n"); 5008fae3551SRodney W. Grimes } 5018fae3551SRodney W. Grimes } 5028fae3551SRodney W. Grimes duplist = (struct dups *)0; 5038fae3551SRodney W. Grimes muldup = (struct dups *)0; 5048fae3551SRodney W. Grimes inocleanup(); 505802cd8e6SDavid Greenman if (fsmodified) { 506d33e92f9SJulian Elischer sblock.fs_time = time(NULL); 5078fae3551SRodney W. Grimes sbdirty(); 5088fae3551SRodney W. Grimes } 5098fae3551SRodney W. Grimes if (cvtlevel && sblk.b_dirty) { 5108fae3551SRodney W. Grimes /* 5118fae3551SRodney W. Grimes * Write out the duplicate super blocks 5128fae3551SRodney W. Grimes */ 5138fae3551SRodney W. Grimes for (cylno = 0; cylno < sblock.fs_ncg; cylno++) 514aef8d244SPawel Jakub Dawidek blwrite(fswritefd, (char *)&sblock, 5151c85e6a3SKirk McKusick fsbtodb(&sblock, cgsblock(&sblock, cylno)), 5161c85e6a3SKirk McKusick SBLOCKSIZE); 5178fae3551SRodney W. Grimes } 518b1897c19SJulian Elischer if (rerun) 519b1897c19SJulian Elischer resolved = 0; 520571b29eeSPeter Wemm 521d0e1503bSPeter Wemm /* 522aa5344b7SPeter Wemm * Check to see if the file system is mounted read-write. 523d0e1503bSPeter Wemm */ 5247578c6abSKirk McKusick if (bkgrdflag == 0 && mntp != NULL && (mntp->f_flags & MNT_RDONLY) == 0) 525b1897c19SJulian Elischer resolved = 0; 526b1897c19SJulian Elischer ckfini(resolved); 527d33e92f9SJulian Elischer 528d33e92f9SJulian Elischer for (cylno = 0; cylno < sblock.fs_ncg; cylno++) 529d33e92f9SJulian Elischer if (inostathead[cylno].il_stat != NULL) 530d33e92f9SJulian Elischer free((char *)inostathead[cylno].il_stat); 531d33e92f9SJulian Elischer free((char *)inostathead); 532d33e92f9SJulian Elischer inostathead = NULL; 533d33e92f9SJulian Elischer if (fsmodified && !preen) 5348fae3551SRodney W. Grimes printf("\n***** FILE SYSTEM WAS MODIFIED *****\n"); 53547ceb636SGuido van Rooij if (rerun) 53647ceb636SGuido van Rooij printf("\n***** PLEASE RERUN FSCK *****\n"); 537db3f838dSPawel Jakub Dawidek if (chkdoreload(mntp) != 0) { 538d33e92f9SJulian Elischer if (!fsmodified) 539d33e92f9SJulian Elischer return (0); 5408fae3551SRodney W. Grimes if (!preen) 5418fae3551SRodney W. Grimes printf("\n***** REBOOT NOW *****\n"); 5428fae3551SRodney W. Grimes sync(); 5438fae3551SRodney W. Grimes return (4); 5448fae3551SRodney W. Grimes } 5458fae3551SRodney W. Grimes return (0); 5468fae3551SRodney W. Grimes } 547571b29eeSPeter Wemm 548db3f838dSPawel Jakub Dawidek static int 549db3f838dSPawel Jakub Dawidek chkdoreload(struct statfs *mntp) 550db3f838dSPawel Jakub Dawidek { 55124adb851SCraig Rodrigues struct iovec *iov; 55224adb851SCraig Rodrigues int iovlen; 55324adb851SCraig Rodrigues char errmsg[255]; 554db3f838dSPawel Jakub Dawidek 555db3f838dSPawel Jakub Dawidek if (mntp == NULL) 556db3f838dSPawel Jakub Dawidek return (0); 55724adb851SCraig Rodrigues 55824adb851SCraig Rodrigues iov = NULL; 55924adb851SCraig Rodrigues iovlen = 0; 56024adb851SCraig Rodrigues errmsg[0] = '\0'; 561db3f838dSPawel Jakub Dawidek /* 562db3f838dSPawel Jakub Dawidek * We modified a mounted file system. Do a mount update on 563db3f838dSPawel Jakub Dawidek * it unless it is read-write, so we can continue using it 564db3f838dSPawel Jakub Dawidek * as safely as possible. 565db3f838dSPawel Jakub Dawidek */ 566db3f838dSPawel Jakub Dawidek if (mntp->f_flags & MNT_RDONLY) { 56724adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "fstype", "ffs", 4); 56824adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "from", mntp->f_mntfromname, 56924adb851SCraig Rodrigues (size_t)-1); 57024adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "fspath", mntp->f_mntonname, 57124adb851SCraig Rodrigues (size_t)-1); 57224adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "errmsg", errmsg, 57324adb851SCraig Rodrigues sizeof(errmsg)); 574d8f7b008SCraig Rodrigues build_iovec(&iov, &iovlen, "update", NULL, 0); 5756910e995SCraig Rodrigues build_iovec(&iov, &iovlen, "reload", NULL, 0); 576205e074fSCraig Rodrigues /* 577205e074fSCraig Rodrigues * XX: We need the following line until we clean up 578205e074fSCraig Rodrigues * nmount parsing of root mounts and NFS root mounts. 579205e074fSCraig Rodrigues */ 580d8f7b008SCraig Rodrigues build_iovec(&iov, &iovlen, "ro", NULL, 0); 581defc9d50SDavid E. O'Brien if (nmount(iov, iovlen, mntp->f_flags) == 0) { 582db3f838dSPawel Jakub Dawidek return (0); 583db3f838dSPawel Jakub Dawidek } 58424adb851SCraig Rodrigues pwarn("mount reload of '%s' failed: %s %s\n\n", 58524adb851SCraig Rodrigues mntp->f_mntonname, strerror(errno), errmsg); 586db3f838dSPawel Jakub Dawidek return (1); 587db3f838dSPawel Jakub Dawidek } 588db3f838dSPawel Jakub Dawidek return (0); 589db3f838dSPawel Jakub Dawidek } 590db3f838dSPawel Jakub Dawidek 591571b29eeSPeter Wemm /* 59215fca934SKirk McKusick * Get the mount point information for name. 593571b29eeSPeter Wemm */ 594571b29eeSPeter Wemm static struct statfs * 595b70cd7eeSWarner Losh getmntpt(const char *name) 596571b29eeSPeter Wemm { 597571b29eeSPeter Wemm struct stat devstat, mntdevstat; 598d0e1503bSPeter Wemm char device[sizeof(_PATH_DEV) - 1 + MNAMELEN]; 599599304a4SPoul-Henning Kamp char *ddevname; 60015fca934SKirk McKusick struct statfs *mntbuf, *statfsp; 60115fca934SKirk McKusick int i, mntsize, isdev; 602571b29eeSPeter Wemm 60315fca934SKirk McKusick if (stat(name, &devstat) != 0) 604571b29eeSPeter Wemm return (NULL); 60515fca934SKirk McKusick if (S_ISCHR(devstat.st_mode) || S_ISBLK(devstat.st_mode)) 60615fca934SKirk McKusick isdev = 1; 60715fca934SKirk McKusick else 60815fca934SKirk McKusick isdev = 0; 609571b29eeSPeter Wemm mntsize = getmntinfo(&mntbuf, MNT_NOWAIT); 610571b29eeSPeter Wemm for (i = 0; i < mntsize; i++) { 61115fca934SKirk McKusick statfsp = &mntbuf[i]; 612599304a4SPoul-Henning Kamp ddevname = statfsp->f_mntfromname; 613599304a4SPoul-Henning Kamp if (*ddevname != '/') { 614d0e1503bSPeter Wemm strcpy(device, _PATH_DEV); 615599304a4SPoul-Henning Kamp strcat(device, ddevname); 61615fca934SKirk McKusick strcpy(statfsp->f_mntfromname, device); 61715fca934SKirk McKusick } 61815fca934SKirk McKusick if (isdev == 0) { 61915fca934SKirk McKusick if (strcmp(name, statfsp->f_mntonname)) 62015fca934SKirk McKusick continue; 62115fca934SKirk McKusick return (statfsp); 622d0e1503bSPeter Wemm } 623599304a4SPoul-Henning Kamp if (stat(ddevname, &mntdevstat) == 0 && 624d0e1503bSPeter Wemm mntdevstat.st_rdev == devstat.st_rdev) 62515fca934SKirk McKusick return (statfsp); 626571b29eeSPeter Wemm } 62715fca934SKirk McKusick statfsp = NULL; 62815fca934SKirk McKusick return (statfsp); 629571b29eeSPeter Wemm } 6309ea6f4f0SAdrian Chadd 6319ea6f4f0SAdrian Chadd static void 632b70cd7eeSWarner Losh usage(void) 6339ea6f4f0SAdrian Chadd { 6349ea6f4f0SAdrian Chadd (void) fprintf(stderr, 635910b491eSKirk McKusick "usage: %s [-BFprfny] [-b block] [-c level] [-m mode] " 6369ea6f4f0SAdrian Chadd "filesystem ...\n", 6378e2e167cSMark Murray getprogname()); 6389ea6f4f0SAdrian Chadd exit(1); 6399ea6f4f0SAdrian Chadd } 640