18a16b7a1SPedro F. Giffuni /*- 28a16b7a1SPedro F. Giffuni * SPDX-License-Identifier: BSD-3-Clause 38a16b7a1SPedro F. Giffuni * 48fae3551SRodney W. Grimes * Copyright (c) 1980, 1986, 1993 58fae3551SRodney W. Grimes * The Regents of the University of California. All rights reserved. 68fae3551SRodney W. Grimes * 78fae3551SRodney W. Grimes * Redistribution and use in source and binary forms, with or without 88fae3551SRodney W. Grimes * modification, are permitted provided that the following conditions 98fae3551SRodney W. Grimes * are met: 108fae3551SRodney W. Grimes * 1. Redistributions of source code must retain the above copyright 118fae3551SRodney W. Grimes * notice, this list of conditions and the following disclaimer. 128fae3551SRodney W. Grimes * 2. Redistributions in binary form must reproduce the above copyright 138fae3551SRodney W. Grimes * notice, this list of conditions and the following disclaimer in the 148fae3551SRodney W. Grimes * documentation and/or other materials provided with the distribution. 15fbbd9655SWarner Losh * 3. Neither the name of the University nor the names of its contributors 168fae3551SRodney W. Grimes * may be used to endorse or promote products derived from this software 178fae3551SRodney W. Grimes * without specific prior written permission. 188fae3551SRodney W. Grimes * 198fae3551SRodney W. Grimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 208fae3551SRodney W. Grimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 218fae3551SRodney W. Grimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 228fae3551SRodney W. Grimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 238fae3551SRodney W. Grimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 248fae3551SRodney W. Grimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 258fae3551SRodney W. Grimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 268fae3551SRodney W. Grimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 278fae3551SRodney W. Grimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 288fae3551SRodney W. Grimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 298fae3551SRodney W. Grimes * SUCH DAMAGE. 308fae3551SRodney W. Grimes */ 318fae3551SRodney W. Grimes 32c69284caSDavid E. O'Brien #if 0 338fae3551SRodney W. Grimes #ifndef lint 3431f4ab50SBruce Evans static const char copyright[] = 358fae3551SRodney W. Grimes "@(#) Copyright (c) 1980, 1986, 1993\n\ 368fae3551SRodney W. Grimes The Regents of the University of California. All rights reserved.\n"; 378fae3551SRodney W. Grimes #endif /* not lint */ 388fae3551SRodney W. Grimes 398fae3551SRodney W. Grimes #ifndef lint 406b100474SJulian Elischer static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/14/95"; 418fae3551SRodney W. Grimes #endif /* not lint */ 42c69284caSDavid E. O'Brien #endif 438e2e167cSMark Murray #include <sys/cdefs.h> 448e2e167cSMark Murray __FBSDID("$FreeBSD$"); 458e2e167cSMark Murray 4631461aa2SKirk McKusick #define IN_RTLD /* So we pickup the P_OSREL defines */ 478fae3551SRodney W. Grimes #include <sys/param.h> 4838375c40SKirk McKusick #include <sys/file.h> 498fae3551SRodney W. Grimes #include <sys/mount.h> 5033966081SMatt Jacob #include <sys/resource.h> 517649cb00SKirk McKusick #include <sys/stat.h> 52bf58d635SIan Dowse #include <sys/sysctl.h> 5324adb851SCraig Rodrigues #include <sys/uio.h> 541c85e6a3SKirk McKusick #include <sys/disklabel.h> 55780a5c1eSPeter Wemm 568fae3551SRodney W. Grimes #include <ufs/ufs/dinode.h> 578fae3551SRodney W. Grimes #include <ufs/ffs/fs.h> 58780a5c1eSPeter Wemm 59780a5c1eSPeter Wemm #include <err.h> 60d0e1503bSPeter Wemm #include <errno.h> 618fae3551SRodney W. Grimes #include <fstab.h> 62ff76fc7fSKirk McKusick #include <grp.h> 636a5972dbSKirk McKusick #include <inttypes.h> 64f644caadSKirk McKusick #include <libufs.h> 6524adb851SCraig Rodrigues #include <mntopts.h> 66d0e1503bSPeter Wemm #include <paths.h> 6784fc0d7eSMaxime Henrion #include <stdint.h> 68bf58d635SIan Dowse #include <string.h> 697649cb00SKirk McKusick #include <time.h> 70780a5c1eSPeter Wemm 718fae3551SRodney W. Grimes #include "fsck.h" 72780a5c1eSPeter Wemm 735cc52631SKirk McKusick static int restarts; 747703a6ffSScott Long 75b70cd7eeSWarner Losh static void usage(void) __dead2; 766a5972dbSKirk McKusick static intmax_t argtoimax(int flag, const char *req, const char *str, int base); 77b70cd7eeSWarner Losh static int checkfilesys(char *filesys); 78c0bfa109SKirk McKusick static int setup_bkgrdchk(struct statfs *mntp, int sbrdfailed, char **filesys); 79c0bfa109SKirk McKusick static int openfilesys(char *dev); 80db3f838dSPawel Jakub Dawidek static int chkdoreload(struct statfs *mntp); 81b70cd7eeSWarner Losh static struct statfs *getmntpt(const char *); 828fae3551SRodney W. Grimes 8331f4ab50SBruce Evans int 84b70cd7eeSWarner Losh main(int argc, char *argv[]) 858fae3551SRodney W. Grimes { 868fae3551SRodney W. Grimes int ch; 87d33e92f9SJulian Elischer struct rlimit rlimit; 881660ae87SScott Long struct itimerval itimerval; 89469759f8SDavid Bright int fsret; 909ea6f4f0SAdrian Chadd int ret = 0; 918fae3551SRodney W. Grimes 928fae3551SRodney W. Grimes sync(); 939ea6f4f0SAdrian Chadd skipclean = 1; 94910b491eSKirk McKusick inoopt = 0; 950061238fSKirk McKusick while ((ch = getopt(argc, argv, "b:Bc:CdEfFm:npRrSyZz")) != -1) { 968fae3551SRodney W. Grimes switch (ch) { 978fae3551SRodney W. Grimes case 'b': 989ea6f4f0SAdrian Chadd skipclean = 0; 996a5972dbSKirk McKusick bflag = argtoimax('b', "number", optarg, 10); 1006a5972dbSKirk McKusick printf("Alternate super block location: %jd\n", bflag); 1018fae3551SRodney W. Grimes break; 1028fae3551SRodney W. Grimes 1037578c6abSKirk McKusick case 'B': 1047578c6abSKirk McKusick bkgrdflag = 1; 1057578c6abSKirk McKusick break; 1067578c6abSKirk McKusick 1078fae3551SRodney W. Grimes case 'c': 1089ea6f4f0SAdrian Chadd skipclean = 0; 1096a5972dbSKirk McKusick cvtlevel = argtoimax('c', "conversion level", optarg, 1106a5972dbSKirk McKusick 10); 1111c85e6a3SKirk McKusick if (cvtlevel < 3) 1121c85e6a3SKirk McKusick errx(EEXIT, "cannot do level %d conversion", 1131c85e6a3SKirk McKusick cvtlevel); 1148fae3551SRodney W. Grimes break; 1158fae3551SRodney W. Grimes 1168fae3551SRodney W. Grimes case 'd': 1178fae3551SRodney W. Grimes debug++; 1188fae3551SRodney W. Grimes break; 1198fae3551SRodney W. Grimes 1208d3dfc26SDag-Erling Smørgrav case 'E': 1218d3dfc26SDag-Erling Smørgrav Eflag++; 1228d3dfc26SDag-Erling Smørgrav break; 1238d3dfc26SDag-Erling Smørgrav 12441cee58cSDavid Greenman case 'f': 1259ea6f4f0SAdrian Chadd skipclean = 0; 1268fae3551SRodney W. Grimes break; 1278fae3551SRodney W. Grimes 12815fca934SKirk McKusick case 'F': 12915fca934SKirk McKusick bkgrdcheck = 1; 13015fca934SKirk McKusick break; 13115fca934SKirk McKusick 1328fae3551SRodney W. Grimes case 'm': 1336a5972dbSKirk McKusick lfmode = argtoimax('m', "mode", optarg, 8); 1348fae3551SRodney W. Grimes if (lfmode &~ 07777) 135780a5c1eSPeter Wemm errx(EEXIT, "bad mode to -m: %o", lfmode); 1368fae3551SRodney W. Grimes printf("** lost+found creation mode %o\n", lfmode); 1378fae3551SRodney W. Grimes break; 1388fae3551SRodney W. Grimes 1398fae3551SRodney W. Grimes case 'n': 1408fae3551SRodney W. Grimes nflag++; 1418fae3551SRodney W. Grimes yflag = 0; 1428fae3551SRodney W. Grimes break; 1438fae3551SRodney W. Grimes 1449ea6f4f0SAdrian Chadd case 'p': 1459ea6f4f0SAdrian Chadd preen++; 146111a5220SDavid E. O'Brien /*FALLTHROUGH*/ 147111a5220SDavid E. O'Brien 148111a5220SDavid E. O'Brien case 'C': 149111a5220SDavid E. O'Brien ckclean++; 1509ea6f4f0SAdrian Chadd break; 1519ea6f4f0SAdrian Chadd 1527703a6ffSScott Long case 'R': 1537703a6ffSScott Long wantrestart = 1; 1547703a6ffSScott Long break; 155910b491eSKirk McKusick case 'r': 156910b491eSKirk McKusick inoopt++; 157910b491eSKirk McKusick break; 158910b491eSKirk McKusick 159ce779f37SScott Long case 'S': 160ce779f37SScott Long surrender = 1; 161ce779f37SScott Long break; 162ce779f37SScott Long 1638fae3551SRodney W. Grimes case 'y': 1648fae3551SRodney W. Grimes yflag++; 1658fae3551SRodney W. Grimes nflag = 0; 1668fae3551SRodney W. Grimes break; 1678fae3551SRodney W. Grimes 1682b5373deSDag-Erling Smørgrav case 'Z': 1692b5373deSDag-Erling Smørgrav Zflag++; 1702b5373deSDag-Erling Smørgrav break; 1712b5373deSDag-Erling Smørgrav 1720061238fSKirk McKusick case 'z': 1730061238fSKirk McKusick zflag++; 1740061238fSKirk McKusick break; 1750061238fSKirk McKusick 1768fae3551SRodney W. Grimes default: 1779ea6f4f0SAdrian Chadd usage(); 1788fae3551SRodney W. Grimes } 1798fae3551SRodney W. Grimes } 1808fae3551SRodney W. Grimes argc -= optind; 1818fae3551SRodney W. Grimes argv += optind; 1829ea6f4f0SAdrian Chadd 1839ea6f4f0SAdrian Chadd if (!argc) 1849ea6f4f0SAdrian Chadd usage(); 1859ea6f4f0SAdrian Chadd 186c0bfa109SKirk McKusick if (bkgrdflag && cvtlevel > 0) { 187c0bfa109SKirk McKusick pfatal("CANNOT CONVERT A SNAPSHOT\n"); 188c0bfa109SKirk McKusick exit(EEXIT); 189c0bfa109SKirk McKusick } 190c0bfa109SKirk McKusick 1918fae3551SRodney W. Grimes if (signal(SIGINT, SIG_IGN) != SIG_IGN) 1928fae3551SRodney W. Grimes (void)signal(SIGINT, catch); 193111a5220SDavid E. O'Brien if (ckclean) 1948fae3551SRodney W. Grimes (void)signal(SIGQUIT, catchquit); 1956db798caSIan Dowse signal(SIGINFO, infohandler); 1961660ae87SScott Long if (bkgrdflag) { 1971660ae87SScott Long signal(SIGALRM, alarmhandler); 1981660ae87SScott Long itimerval.it_interval.tv_sec = 5; 1991660ae87SScott Long itimerval.it_interval.tv_usec = 0; 2001660ae87SScott Long itimerval.it_value.tv_sec = 5; 2011660ae87SScott Long itimerval.it_value.tv_usec = 0; 2021660ae87SScott Long setitimer(ITIMER_REAL, &itimerval, NULL); 2031660ae87SScott Long } 204d33e92f9SJulian Elischer /* 205d33e92f9SJulian Elischer * Push up our allowed memory limit so we can cope 206d33e92f9SJulian Elischer * with huge file systems. 207d33e92f9SJulian Elischer */ 208d33e92f9SJulian Elischer if (getrlimit(RLIMIT_DATA, &rlimit) == 0) { 209d33e92f9SJulian Elischer rlimit.rlim_cur = rlimit.rlim_max; 210d33e92f9SJulian Elischer (void)setrlimit(RLIMIT_DATA, &rlimit); 211d33e92f9SJulian Elischer } 2127703a6ffSScott Long while (argc > 0) { 213469759f8SDavid Bright if ((fsret = checkfilesys(*argv)) == ERESTART) 2147703a6ffSScott Long continue; 215469759f8SDavid Bright ret |= fsret; 2167703a6ffSScott Long argc--; 2177703a6ffSScott Long argv++; 2187703a6ffSScott Long } 219d33e92f9SJulian Elischer 2208fae3551SRodney W. Grimes if (returntosingle) 2219ea6f4f0SAdrian Chadd ret = 2; 2228fae3551SRodney W. Grimes exit(ret); 2238fae3551SRodney W. Grimes } 2248fae3551SRodney W. Grimes 2256a5972dbSKirk McKusick static intmax_t 2266a5972dbSKirk McKusick argtoimax(int flag, const char *req, const char *str, int base) 2278fae3551SRodney W. Grimes { 2288fae3551SRodney W. Grimes char *cp; 2296a5972dbSKirk McKusick intmax_t ret; 2308fae3551SRodney W. Grimes 2316a5972dbSKirk McKusick ret = strtoimax(str, &cp, base); 2328fae3551SRodney W. Grimes if (cp == str || *cp) 233780a5c1eSPeter Wemm errx(EEXIT, "-%c flag requires a %s", flag, req); 2348fae3551SRodney W. Grimes return (ret); 2358fae3551SRodney W. Grimes } 2368fae3551SRodney W. Grimes 2378fae3551SRodney W. Grimes /* 2388fae3551SRodney W. Grimes * Check the specified file system. 2398fae3551SRodney W. Grimes */ 2408fae3551SRodney W. Grimes /* ARGSUSED */ 241780a5c1eSPeter Wemm static int 242b70cd7eeSWarner Losh checkfilesys(char *filesys) 2438fae3551SRodney W. Grimes { 2441c85e6a3SKirk McKusick ufs2_daddr_t n_ffree, n_bfree; 2458fae3551SRodney W. Grimes struct dups *dp; 2467578c6abSKirk McKusick struct statfs *mntp; 247a1c9ec3cSMatthew D Fleming intmax_t blks, files; 24884fc0d7eSMaxime Henrion size_t size; 249c0bfa109SKirk McKusick int sbreadfailed, ofsmodified; 2508fae3551SRodney W. Grimes 2517703a6ffSScott Long fsutilinit(); 2527703a6ffSScott Long fsckinit(); 25324adb851SCraig Rodrigues 2548fae3551SRodney W. Grimes cdevname = filesys; 255111a5220SDavid E. O'Brien if (debug && ckclean) 2568fae3551SRodney W. Grimes pwarn("starting\n"); 25715fca934SKirk McKusick /* 25815fca934SKirk McKusick * Make best effort to get the disk name. Check first to see 25915fca934SKirk McKusick * if it is listed among the mounted file systems. Failing that 26015fca934SKirk McKusick * check to see if it is listed in /etc/fstab. 26115fca934SKirk McKusick */ 26215fca934SKirk McKusick mntp = getmntpt(filesys); 26315fca934SKirk McKusick if (mntp != NULL) 26415fca934SKirk McKusick filesys = mntp->f_mntfromname; 26515fca934SKirk McKusick else 26615fca934SKirk McKusick filesys = blockcheck(filesys); 26715fca934SKirk McKusick /* 26815fca934SKirk McKusick * If -F flag specified, check to see whether a background check 26915fca934SKirk McKusick * is possible and needed. If possible and needed, exit with 27015fca934SKirk McKusick * status zero. Otherwise exit with status non-zero. A non-zero 27115fca934SKirk McKusick * exit status will cause a foreground check to be run. 27215fca934SKirk McKusick */ 27338375c40SKirk McKusick sblock_init(); 274c0bfa109SKirk McKusick sbreadfailed = 0; 275c0bfa109SKirk McKusick if (openfilesys(filesys) == 0 || readsb(0) == 0) 276c0bfa109SKirk McKusick sbreadfailed = 1; 27715fca934SKirk McKusick if (bkgrdcheck) { 278c0bfa109SKirk McKusick if (sbreadfailed) 27915fca934SKirk McKusick exit(3); /* Cannot read superblock */ 280113db2ddSJeff Roberson /* Earlier background failed or journaled */ 281113db2ddSJeff Roberson if (sblock.fs_flags & (FS_NEEDSFSCK | FS_SUJ)) 282113db2ddSJeff Roberson exit(4); 28315fca934SKirk McKusick if ((sblock.fs_flags & FS_DOSOFTDEP) == 0) 28415fca934SKirk McKusick exit(5); /* Not running soft updates */ 28515fca934SKirk McKusick size = MIBSIZE; 28615fca934SKirk McKusick if (sysctlnametomib("vfs.ffs.adjrefcnt", adjrefcnt, &size) < 0) 28715fca934SKirk McKusick exit(6); /* Lacks kernel support */ 28815fca934SKirk McKusick if ((mntp == NULL && sblock.fs_clean == 1) || 28915fca934SKirk McKusick (mntp != NULL && (sblock.fs_flags & FS_UNCLEAN) == 0)) 29015fca934SKirk McKusick exit(7); /* Filesystem clean, report it now */ 29115fca934SKirk McKusick exit(0); 29215fca934SKirk McKusick } 293111a5220SDavid E. O'Brien if (ckclean && skipclean) { 294aef8d244SPawel Jakub Dawidek /* 295aef8d244SPawel Jakub Dawidek * If file system is gjournaled, check it here. 296aef8d244SPawel Jakub Dawidek */ 297c0bfa109SKirk McKusick if (sbreadfailed) 298aef8d244SPawel Jakub Dawidek exit(3); /* Cannot read superblock */ 2990c5a5925SRobert Wing if (bkgrdflag == 0 && 3000c5a5925SRobert Wing (nflag || (fswritefd = open(filesys, O_WRONLY)) < 0)) { 3015cc52631SKirk McKusick fswritefd = -1; 3025cc52631SKirk McKusick if (preen) 3035cc52631SKirk McKusick pfatal("NO WRITE ACCESS"); 3045cc52631SKirk McKusick printf(" (NO WRITE)"); 3055cc52631SKirk McKusick } 306aef8d244SPawel Jakub Dawidek if ((sblock.fs_flags & FS_GJOURNAL) != 0) { 307aef8d244SPawel Jakub Dawidek if (sblock.fs_clean == 1) { 308aef8d244SPawel Jakub Dawidek pwarn("FILE SYSTEM CLEAN; SKIPPING CHECKS\n"); 309aef8d244SPawel Jakub Dawidek exit(0); 310aef8d244SPawel Jakub Dawidek } 311c0bfa109SKirk McKusick if ((sblock.fs_flags & 312c0bfa109SKirk McKusick (FS_UNCLEAN | FS_NEEDSFSCK)) == 0) { 313441e69e4SRobert Wing bufinit(); 314aef8d244SPawel Jakub Dawidek gjournal_check(filesys); 315db3f838dSPawel Jakub Dawidek if (chkdoreload(mntp) == 0) 316aef8d244SPawel Jakub Dawidek exit(0); 317db3f838dSPawel Jakub Dawidek exit(4); 318aef8d244SPawel Jakub Dawidek } else { 319c0bfa109SKirk McKusick pfatal("FULL FSCK NEEDED, CANNOT RUN FAST " 320c0bfa109SKirk McKusick "FSCK\n"); 3210c5a5925SRobert Wing } 3220c5a5925SRobert Wing } 3235cc52631SKirk McKusick close(fswritefd); 324c0bfa109SKirk McKusick fswritefd = -1; 325aef8d244SPawel Jakub Dawidek } 3267578c6abSKirk McKusick if (bkgrdflag) { 327c0bfa109SKirk McKusick switch (setup_bkgrdchk(mntp, sbreadfailed, &filesys)) { 328c0bfa109SKirk McKusick case -1: /* filesystem clean */ 32938375c40SKirk McKusick goto clean; 330c0bfa109SKirk McKusick case 0: /* cannot do background, give up */ 331c0bfa109SKirk McKusick exit(EEXIT); 332c0bfa109SKirk McKusick case 1: /* doing background check, preen rules apply */ 333c0bfa109SKirk McKusick preen = 1; 3347578c6abSKirk McKusick break; 3357578c6abSKirk McKusick } 3367578c6abSKirk McKusick } 3377578c6abSKirk McKusick 338780a5c1eSPeter Wemm switch (setup(filesys)) { 339780a5c1eSPeter Wemm case 0: 3408fae3551SRodney W. Grimes if (preen) 3418fae3551SRodney W. Grimes pfatal("CAN'T CHECK FILE SYSTEM."); 342e8337044SChuck Silvers return (EEXIT); 343780a5c1eSPeter Wemm case -1: 34438375c40SKirk McKusick clean: 345bf58d635SIan Dowse pwarn("clean, %ld free ", (long)(sblock.fs_cstotal.cs_nffree + 346bf58d635SIan Dowse sblock.fs_frag * sblock.fs_cstotal.cs_nbfree)); 347a1c9ec3cSMatthew D Fleming printf("(%jd frags, %jd blocks, %.1f%% fragmentation)\n", 348a1c9ec3cSMatthew D Fleming (intmax_t)sblock.fs_cstotal.cs_nffree, 349a1c9ec3cSMatthew D Fleming (intmax_t)sblock.fs_cstotal.cs_nbfree, 3506b100474SJulian Elischer sblock.fs_cstotal.cs_nffree * 100.0 / sblock.fs_dsize); 35141cee58cSDavid Greenman return (0); 35241cee58cSDavid Greenman } 353113db2ddSJeff Roberson /* 354113db2ddSJeff Roberson * Determine if we can and should do journal recovery. 355113db2ddSJeff Roberson */ 356edad6026SXin LI if ((sblock.fs_flags & FS_SUJ) == FS_SUJ) { 357edad6026SXin LI if ((sblock.fs_flags & FS_NEEDSFSCK) != FS_NEEDSFSCK && skipclean) { 3585cc52631SKirk McKusick sujrecovery = 1; 359113db2ddSJeff Roberson if (suj_check(filesys) == 0) { 360edad6026SXin LI printf("\n***** FILE SYSTEM MARKED CLEAN *****\n"); 361113db2ddSJeff Roberson if (chkdoreload(mntp) == 0) 362113db2ddSJeff Roberson exit(0); 363113db2ddSJeff Roberson exit(4); 364113db2ddSJeff Roberson } 3655cc52631SKirk McKusick sujrecovery = 0; 366edad6026SXin LI printf("** Skipping journal, falling through to full fsck\n\n"); 367edad6026SXin LI } 368ed1a156bSChuck Silvers if (fswritefd != -1) { 369113db2ddSJeff Roberson /* 370113db2ddSJeff Roberson * Write the superblock so we don't try to recover the 37191882068SKirk McKusick * journal on another pass. If this is the only change 37291882068SKirk McKusick * to the filesystem, we do not want it to be called 37391882068SKirk McKusick * out as modified. 374113db2ddSJeff Roberson */ 375113db2ddSJeff Roberson sblock.fs_mtime = time(NULL); 376113db2ddSJeff Roberson sbdirty(); 37791882068SKirk McKusick ofsmodified = fsmodified; 37891882068SKirk McKusick flush(fswritefd, &sblk); 37991882068SKirk McKusick fsmodified = ofsmodified; 380113db2ddSJeff Roberson } 381ed1a156bSChuck Silvers } 38231461aa2SKirk McKusick /* 38331461aa2SKirk McKusick * If the filesystem was run on an old kernel that did not 38431461aa2SKirk McKusick * support check hashes, clear the check-hash flags so that 38531461aa2SKirk McKusick * we do not try to verify them. 38631461aa2SKirk McKusick */ 38731461aa2SKirk McKusick if ((sblock.fs_flags & FS_METACKHASH) == 0) 38831461aa2SKirk McKusick sblock.fs_metackhash = 0; 38931461aa2SKirk McKusick /* 39031461aa2SKirk McKusick * If we are running on a kernel that can provide check hashes 39131461aa2SKirk McKusick * that are not yet enabled for the filesystem and we are 39231461aa2SKirk McKusick * running manually without the -y flag, offer to add any 39331461aa2SKirk McKusick * supported check hashes that are not already enabled. 39431461aa2SKirk McKusick */ 39531461aa2SKirk McKusick ckhashadd = 0; 39631461aa2SKirk McKusick if (preen == 0 && yflag == 0 && sblock.fs_magic != FS_UFS1_MAGIC && 39731461aa2SKirk McKusick fswritefd != -1 && getosreldate() >= P_OSREL_CK_CYLGRP) { 39831461aa2SKirk McKusick if ((sblock.fs_metackhash & CK_CYLGRP) == 0 && 3999fc5d538SKirk McKusick reply("ADD CYLINDER GROUP CHECK-HASH PROTECTION") != 0) { 40031461aa2SKirk McKusick ckhashadd |= CK_CYLGRP; 4019fc5d538SKirk McKusick sblock.fs_metackhash |= CK_CYLGRP; 4029fc5d538SKirk McKusick } 40331461aa2SKirk McKusick if ((sblock.fs_metackhash & CK_SUPERBLOCK) == 0 && 40431461aa2SKirk McKusick getosreldate() >= P_OSREL_CK_SUPERBLOCK && 405ec888383SKirk McKusick reply("ADD SUPERBLOCK CHECK-HASH PROTECTION") != 0) { 4069fc5d538SKirk McKusick ckhashadd |= CK_SUPERBLOCK; 407ec888383SKirk McKusick sblock.fs_metackhash |= CK_SUPERBLOCK; 408ec888383SKirk McKusick } 40931461aa2SKirk McKusick if ((sblock.fs_metackhash & CK_INODE) == 0 && 41031461aa2SKirk McKusick getosreldate() >= P_OSREL_CK_INODE && 4119fc5d538SKirk McKusick reply("ADD INODE CHECK-HASH PROTECTION") != 0) { 41231461aa2SKirk McKusick ckhashadd |= CK_INODE; 4139fc5d538SKirk McKusick sblock.fs_metackhash |= CK_INODE; 4149fc5d538SKirk McKusick } 4158f829a5cSKirk McKusick #ifdef notyet 41631461aa2SKirk McKusick if ((sblock.fs_metackhash & CK_INDIR) == 0 && 41731461aa2SKirk McKusick getosreldate() >= P_OSREL_CK_INDIR && 4189fc5d538SKirk McKusick reply("ADD INDIRECT BLOCK CHECK-HASH PROTECTION") != 0) { 41931461aa2SKirk McKusick ckhashadd |= CK_INDIR; 4209fc5d538SKirk McKusick sblock.fs_metackhash |= CK_INDIR; 4219fc5d538SKirk McKusick } 42231461aa2SKirk McKusick if ((sblock.fs_metackhash & CK_DIR) == 0 && 42331461aa2SKirk McKusick getosreldate() >= P_OSREL_CK_DIR && 4249fc5d538SKirk McKusick reply("ADD DIRECTORY CHECK-HASH PROTECTION") != 0) { 42531461aa2SKirk McKusick ckhashadd |= CK_DIR; 4269fc5d538SKirk McKusick sblock.fs_metackhash |= CK_DIR; 4279fc5d538SKirk McKusick } 42831461aa2SKirk McKusick #endif /* notyet */ 4299fc5d538SKirk McKusick if (ckhashadd != 0) { 43031461aa2SKirk McKusick sblock.fs_flags |= FS_METACKHASH; 4319fc5d538SKirk McKusick sbdirty(); 4329fc5d538SKirk McKusick } 43331461aa2SKirk McKusick } 4348fae3551SRodney W. Grimes /* 435b1897c19SJulian Elischer * Cleared if any questions answered no. Used to decide if 436b1897c19SJulian Elischer * the superblock should be marked clean. 437b1897c19SJulian Elischer */ 438b1897c19SJulian Elischer resolved = 1; 439b1897c19SJulian Elischer /* 4408fae3551SRodney W. Grimes * 1: scan inodes tallying blocks used 4418fae3551SRodney W. Grimes */ 4428fae3551SRodney W. Grimes if (preen == 0) { 4438fae3551SRodney W. Grimes printf("** Last Mounted on %s\n", sblock.fs_fsmnt); 4447578c6abSKirk McKusick if (mntp != NULL && mntp->f_flags & MNT_ROOTFS) 4458fae3551SRodney W. Grimes printf("** Root file system\n"); 4468fae3551SRodney W. Grimes printf("** Phase 1 - Check Blocks and Sizes\n"); 4478fae3551SRodney W. Grimes } 448ed75b5a1SKirk McKusick clock_gettime(CLOCK_REALTIME_PRECISE, &startprog); 4498fae3551SRodney W. Grimes pass1(); 450ed75b5a1SKirk McKusick IOstats("Pass1"); 4518fae3551SRodney W. Grimes 4528fae3551SRodney W. Grimes /* 4538fae3551SRodney W. Grimes * 1b: locate first references to duplicates, if any 4548fae3551SRodney W. Grimes */ 4558fae3551SRodney W. Grimes if (duplist) { 456b1897c19SJulian Elischer if (preen || usedsoftdep) 457c82df0a0SKirk McKusick pfatal("INTERNAL ERROR: DUPS WITH %s%s%s", 45821be55ccSKirk McKusick preen ? "-p" : "", 459c82df0a0SKirk McKusick (preen && usedsoftdep) ? " AND " : "", 460c82df0a0SKirk McKusick usedsoftdep ? "SOFTUPDATES" : ""); 4618fae3551SRodney W. Grimes printf("** Phase 1b - Rescan For More DUPS\n"); 4628fae3551SRodney W. Grimes pass1b(); 463ed75b5a1SKirk McKusick IOstats("Pass1b"); 4648fae3551SRodney W. Grimes } 4658fae3551SRodney W. Grimes 4668fae3551SRodney W. Grimes /* 4678fae3551SRodney W. Grimes * 2: traverse directories from root to mark all connected directories 4688fae3551SRodney W. Grimes */ 4698fae3551SRodney W. Grimes if (preen == 0) 4708fae3551SRodney W. Grimes printf("** Phase 2 - Check Pathnames\n"); 4718fae3551SRodney W. Grimes pass2(); 472ed75b5a1SKirk McKusick IOstats("Pass2"); 4738fae3551SRodney W. Grimes 4748fae3551SRodney W. Grimes /* 4758fae3551SRodney W. Grimes * 3: scan inodes looking for disconnected directories 4768fae3551SRodney W. Grimes */ 4778fae3551SRodney W. Grimes if (preen == 0) 4788fae3551SRodney W. Grimes printf("** Phase 3 - Check Connectivity\n"); 4798fae3551SRodney W. Grimes pass3(); 480ed75b5a1SKirk McKusick IOstats("Pass3"); 4818fae3551SRodney W. Grimes 4828fae3551SRodney W. Grimes /* 4838fae3551SRodney W. Grimes * 4: scan inodes looking for disconnected files; check reference counts 4848fae3551SRodney W. Grimes */ 4858fae3551SRodney W. Grimes if (preen == 0) 4868fae3551SRodney W. Grimes printf("** Phase 4 - Check Reference Counts\n"); 4878fae3551SRodney W. Grimes pass4(); 488ed75b5a1SKirk McKusick IOstats("Pass4"); 4898fae3551SRodney W. Grimes 4908fae3551SRodney W. Grimes /* 4918fae3551SRodney W. Grimes * 5: check and repair resource counts in cylinder groups 4928fae3551SRodney W. Grimes */ 4938fae3551SRodney W. Grimes if (preen == 0) 4948fae3551SRodney W. Grimes printf("** Phase 5 - Check Cyl groups\n"); 4958fae3551SRodney W. Grimes pass5(); 496ed75b5a1SKirk McKusick IOstats("Pass5"); 4978fae3551SRodney W. Grimes 4988fae3551SRodney W. Grimes /* 4998fae3551SRodney W. Grimes * print out summary statistics 5008fae3551SRodney W. Grimes */ 5018fae3551SRodney W. Grimes n_ffree = sblock.fs_cstotal.cs_nffree; 5028fae3551SRodney W. Grimes n_bfree = sblock.fs_cstotal.cs_nbfree; 5031dc349abSEd Maste files = maxino - UFS_ROOTINO - sblock.fs_cstotal.cs_nifree - n_files; 5047578c6abSKirk McKusick blks = n_blks + 5057578c6abSKirk McKusick sblock.fs_ncg * (cgdmin(&sblock, 0) - cgsblock(&sblock, 0)); 5067578c6abSKirk McKusick blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0); 5077578c6abSKirk McKusick blks += howmany(sblock.fs_cssize, sblock.fs_fsize); 5087578c6abSKirk McKusick blks = maxfsblock - (n_ffree + sblock.fs_frag * n_bfree) - blks; 5097578c6abSKirk McKusick if (bkgrdflag && (files > 0 || blks > 0)) { 5107578c6abSKirk McKusick countdirs = sblock.fs_cstotal.cs_ndir - countdirs; 511a1c9ec3cSMatthew D Fleming pwarn("Reclaimed: %ld directories, %jd files, %jd fragments\n", 512a1c9ec3cSMatthew D Fleming countdirs, files - countdirs, blks); 5137578c6abSKirk McKusick } 51484fc0d7eSMaxime Henrion pwarn("%ld files, %jd used, %ju free ", 51584fc0d7eSMaxime Henrion (long)n_files, (intmax_t)n_blks, 51684fc0d7eSMaxime Henrion (uintmax_t)n_ffree + sblock.fs_frag * n_bfree); 51784fc0d7eSMaxime Henrion printf("(%ju frags, %ju blocks, %.1f%% fragmentation)\n", 51884fc0d7eSMaxime Henrion (uintmax_t)n_ffree, (uintmax_t)n_bfree, 51984fc0d7eSMaxime Henrion n_ffree * 100.0 / sblock.fs_dsize); 5208fae3551SRodney W. Grimes if (debug) { 5217578c6abSKirk McKusick if (files < 0) 522a1c9ec3cSMatthew D Fleming printf("%jd inodes missing\n", -files); 5237578c6abSKirk McKusick if (blks < 0) 524a1c9ec3cSMatthew D Fleming printf("%jd blocks missing\n", -blks); 5258fae3551SRodney W. Grimes if (duplist != NULL) { 5268fae3551SRodney W. Grimes printf("The following duplicate blocks remain:"); 5278fae3551SRodney W. Grimes for (dp = duplist; dp; dp = dp->next) 528a1c9ec3cSMatthew D Fleming printf(" %jd,", (intmax_t)dp->dup); 5298fae3551SRodney W. Grimes printf("\n"); 5308fae3551SRodney W. Grimes } 5318fae3551SRodney W. Grimes } 5328fae3551SRodney W. Grimes duplist = (struct dups *)0; 5338fae3551SRodney W. Grimes muldup = (struct dups *)0; 5348fae3551SRodney W. Grimes inocleanup(); 535802cd8e6SDavid Greenman if (fsmodified) { 536d33e92f9SJulian Elischer sblock.fs_time = time(NULL); 5378fae3551SRodney W. Grimes sbdirty(); 5388fae3551SRodney W. Grimes } 5395cc52631SKirk McKusick if (cvtlevel && (sblk.b_flags & B_DIRTY) != 0) { 5408fae3551SRodney W. Grimes /* 5418fae3551SRodney W. Grimes * Write out the duplicate super blocks 5428fae3551SRodney W. Grimes */ 543f644caadSKirk McKusick if (sbput(fswritefd, &sblock, sblock.fs_ncg) == 0) 544f644caadSKirk McKusick fsmodified = 1; 5458fae3551SRodney W. Grimes } 546b1897c19SJulian Elischer if (rerun) 547b1897c19SJulian Elischer resolved = 0; 548571b29eeSPeter Wemm 549d0e1503bSPeter Wemm /* 550aa5344b7SPeter Wemm * Check to see if the file system is mounted read-write. 551d0e1503bSPeter Wemm */ 5527578c6abSKirk McKusick if (bkgrdflag == 0 && mntp != NULL && (mntp->f_flags & MNT_RDONLY) == 0) 553b1897c19SJulian Elischer resolved = 0; 554b1897c19SJulian Elischer ckfini(resolved); 555d33e92f9SJulian Elischer 556d33e92f9SJulian Elischer if (fsmodified && !preen) 5578fae3551SRodney W. Grimes printf("\n***** FILE SYSTEM WAS MODIFIED *****\n"); 5587703a6ffSScott Long if (rerun) { 5597703a6ffSScott Long if (wantrestart && (restarts++ < 10) && 5607703a6ffSScott Long (preen || reply("RESTART"))) 5617703a6ffSScott Long return (ERESTART); 56247ceb636SGuido van Rooij printf("\n***** PLEASE RERUN FSCK *****\n"); 5637703a6ffSScott Long } 564db3f838dSPawel Jakub Dawidek if (chkdoreload(mntp) != 0) { 565d33e92f9SJulian Elischer if (!fsmodified) 566d33e92f9SJulian Elischer return (0); 5678fae3551SRodney W. Grimes if (!preen) 5688fae3551SRodney W. Grimes printf("\n***** REBOOT NOW *****\n"); 5698fae3551SRodney W. Grimes sync(); 5708fae3551SRodney W. Grimes return (4); 5718fae3551SRodney W. Grimes } 572469759f8SDavid Bright return (rerun ? ERERUN : 0); 5738fae3551SRodney W. Grimes } 574571b29eeSPeter Wemm 575c0bfa109SKirk McKusick /* 576c0bfa109SKirk McKusick * If we are to do a background check: 577c0bfa109SKirk McKusick * Get the mount point information of the file system 578c0bfa109SKirk McKusick * If already clean, return -1 579c0bfa109SKirk McKusick * Check that kernel supports background fsck 580c0bfa109SKirk McKusick * Find or create the snapshot directory 581c0bfa109SKirk McKusick * Create the snapshot file 582c0bfa109SKirk McKusick * Open snapshot 583c0bfa109SKirk McKusick * If anything fails print reason and return 0 which exits 584c0bfa109SKirk McKusick */ 585c0bfa109SKirk McKusick static int 586c0bfa109SKirk McKusick setup_bkgrdchk(struct statfs *mntp, int sbreadfailed, char **filesys) 587c0bfa109SKirk McKusick { 588c0bfa109SKirk McKusick struct stat snapdir; 589c0bfa109SKirk McKusick struct group *grp; 590c0bfa109SKirk McKusick struct iovec *iov; 591c0bfa109SKirk McKusick char errmsg[255]; 592c0bfa109SKirk McKusick int iovlen; 5939583be04SKirk McKusick size_t size; 594c0bfa109SKirk McKusick 595c0bfa109SKirk McKusick /* Get the mount point information of the file system */ 596c0bfa109SKirk McKusick if (mntp == NULL) { 597c0bfa109SKirk McKusick pwarn("NOT MOUNTED, CANNOT RUN IN BACKGROUND\n"); 598c0bfa109SKirk McKusick return (0); 599c0bfa109SKirk McKusick } 600c0bfa109SKirk McKusick if ((mntp->f_flags & MNT_RDONLY) != 0) { 601c0bfa109SKirk McKusick pwarn("MOUNTED READ-ONLY, CANNOT RUN IN BACKGROUND\n"); 602c0bfa109SKirk McKusick return (0); 603c0bfa109SKirk McKusick } 604c0bfa109SKirk McKusick if ((mntp->f_flags & MNT_SOFTDEP) == 0) { 605c0bfa109SKirk McKusick pwarn("NOT USING SOFT UPDATES, CANNOT RUN IN BACKGROUND\n"); 606c0bfa109SKirk McKusick return (0); 607c0bfa109SKirk McKusick } 608c0bfa109SKirk McKusick if (sbreadfailed) { 609c0bfa109SKirk McKusick pwarn("SUPERBLOCK READ FAILED, CANNOT RUN IN BACKGROUND\n"); 610c0bfa109SKirk McKusick return (0); 611c0bfa109SKirk McKusick } 612c0bfa109SKirk McKusick if ((sblock.fs_flags & FS_NEEDSFSCK) != 0) { 613c0bfa109SKirk McKusick pwarn("FULL FSCK NEEDED, CANNOT RUN IN BACKGROUND\n"); 614c0bfa109SKirk McKusick return (0); 615c0bfa109SKirk McKusick } 616c0bfa109SKirk McKusick if ((sblock.fs_flags & FS_SUJ) != 0) { 617c0bfa109SKirk McKusick pwarn("JOURNALED FILESYSTEM, CANNOT RUN IN BACKGROUND\n"); 618c0bfa109SKirk McKusick return (0); 619c0bfa109SKirk McKusick } 620c0bfa109SKirk McKusick if (skipclean && ckclean && 621c0bfa109SKirk McKusick (sblock.fs_flags & (FS_UNCLEAN|FS_NEEDSFSCK)) == 0) { 622c0bfa109SKirk McKusick /* 623c0bfa109SKirk McKusick * file system is clean; 624c0bfa109SKirk McKusick * skip snapshot and report it clean 625c0bfa109SKirk McKusick */ 626c0bfa109SKirk McKusick pwarn("FILE SYSTEM CLEAN; SKIPPING CHECKS\n"); 627c0bfa109SKirk McKusick return (-1); 628c0bfa109SKirk McKusick } 629c0bfa109SKirk McKusick /* Check that kernel supports background fsck */ 630c0bfa109SKirk McKusick size = MIBSIZE; 631c0bfa109SKirk McKusick if (sysctlnametomib("vfs.ffs.adjrefcnt", adjrefcnt, &size) < 0|| 632c0bfa109SKirk McKusick sysctlnametomib("vfs.ffs.adjblkcnt", adjblkcnt, &size) < 0|| 633c0bfa109SKirk McKusick sysctlnametomib("vfs.ffs.setsize", setsize, &size) < 0 || 634c0bfa109SKirk McKusick sysctlnametomib("vfs.ffs.freefiles", freefiles, &size) < 0|| 635c0bfa109SKirk McKusick sysctlnametomib("vfs.ffs.freedirs", freedirs, &size) < 0 || 636c0bfa109SKirk McKusick sysctlnametomib("vfs.ffs.freeblks", freeblks, &size) < 0) { 637c0bfa109SKirk McKusick pwarn("KERNEL LACKS BACKGROUND FSCK SUPPORT\n"); 638c0bfa109SKirk McKusick return (0); 639c0bfa109SKirk McKusick } 640c0bfa109SKirk McKusick /* 641c0bfa109SKirk McKusick * When kernel lacks runtime bgfsck superblock summary 642c0bfa109SKirk McKusick * adjustment functionality, it does not mean we can not 643c0bfa109SKirk McKusick * continue, as old kernels will recompute the summary at 644c0bfa109SKirk McKusick * mount time. However, it will be an unexpected softupdates 645c0bfa109SKirk McKusick * inconsistency if it turns out that the summary is still 646c0bfa109SKirk McKusick * incorrect. Set a flag so subsequent operation can know this. 647c0bfa109SKirk McKusick */ 648c0bfa109SKirk McKusick bkgrdsumadj = 1; 649c0bfa109SKirk McKusick if (sysctlnametomib("vfs.ffs.adjndir", adjndir, &size) < 0 || 650c0bfa109SKirk McKusick sysctlnametomib("vfs.ffs.adjnbfree", adjnbfree, &size) < 0 || 651c0bfa109SKirk McKusick sysctlnametomib("vfs.ffs.adjnifree", adjnifree, &size) < 0 || 652c0bfa109SKirk McKusick sysctlnametomib("vfs.ffs.adjnffree", adjnffree, &size) < 0 || 653c0bfa109SKirk McKusick sysctlnametomib("vfs.ffs.adjnumclusters", adjnumclusters, 654c0bfa109SKirk McKusick &size) < 0) { 655c0bfa109SKirk McKusick bkgrdsumadj = 0; 656c0bfa109SKirk McKusick pwarn("KERNEL LACKS RUNTIME SUPERBLOCK SUMMARY ADJUSTMENT " 657c0bfa109SKirk McKusick "SUPPORT\n"); 658c0bfa109SKirk McKusick } 659c0bfa109SKirk McKusick /* Find or create the snapshot directory */ 660c0bfa109SKirk McKusick snprintf(snapname, sizeof snapname, "%s/.snap", 661c0bfa109SKirk McKusick mntp->f_mntonname); 662c0bfa109SKirk McKusick if (stat(snapname, &snapdir) < 0) { 663c0bfa109SKirk McKusick if (errno != ENOENT) { 664c0bfa109SKirk McKusick pwarn("CANNOT FIND SNAPSHOT DIRECTORY %s: %s, CANNOT " 665c0bfa109SKirk McKusick "RUN IN BACKGROUND\n", snapname, strerror(errno)); 666c0bfa109SKirk McKusick return (0); 667c0bfa109SKirk McKusick } 668c0bfa109SKirk McKusick if ((grp = getgrnam("operator")) == NULL || 669c0bfa109SKirk McKusick mkdir(snapname, 0770) < 0 || 670c0bfa109SKirk McKusick chown(snapname, -1, grp->gr_gid) < 0 || 671c0bfa109SKirk McKusick chmod(snapname, 0770) < 0) { 672c0bfa109SKirk McKusick pwarn("CANNOT CREATE SNAPSHOT DIRECTORY %s: %s, " 673c0bfa109SKirk McKusick "CANNOT RUN IN BACKGROUND\n", snapname, 674c0bfa109SKirk McKusick strerror(errno)); 675c0bfa109SKirk McKusick return (0); 676c0bfa109SKirk McKusick } 677c0bfa109SKirk McKusick } else if (!S_ISDIR(snapdir.st_mode)) { 678c0bfa109SKirk McKusick pwarn("%s IS NOT A DIRECTORY, CANNOT RUN IN BACKGROUND\n", 679c0bfa109SKirk McKusick snapname); 680c0bfa109SKirk McKusick return (0); 681c0bfa109SKirk McKusick } 682c0bfa109SKirk McKusick /* Create the snapshot file */ 683c0bfa109SKirk McKusick iov = NULL; 684c0bfa109SKirk McKusick iovlen = 0; 685c0bfa109SKirk McKusick errmsg[0] = '\0'; 686c0bfa109SKirk McKusick snprintf(snapname, sizeof snapname, "%s/.snap/fsck_snapshot", 687c0bfa109SKirk McKusick mntp->f_mntonname); 688c0bfa109SKirk McKusick build_iovec(&iov, &iovlen, "fstype", "ffs", 4); 689c0bfa109SKirk McKusick build_iovec(&iov, &iovlen, "from", snapname, (size_t)-1); 690c0bfa109SKirk McKusick build_iovec(&iov, &iovlen, "fspath", mntp->f_mntonname, (size_t)-1); 691c0bfa109SKirk McKusick build_iovec(&iov, &iovlen, "errmsg", errmsg, sizeof(errmsg)); 692c0bfa109SKirk McKusick build_iovec(&iov, &iovlen, "update", NULL, 0); 693c0bfa109SKirk McKusick build_iovec(&iov, &iovlen, "snapshot", NULL, 0); 694c0bfa109SKirk McKusick /* Create snapshot, removing old snapshot it it exists */ 695c0bfa109SKirk McKusick while (nmount(iov, iovlen, mntp->f_flags) < 0) { 696c0bfa109SKirk McKusick if (errno == EEXIST && unlink(snapname) == 0) 697c0bfa109SKirk McKusick continue; 698c0bfa109SKirk McKusick pwarn("CANNOT CREATE SNAPSHOT %s: %s %s\n", snapname, 699c0bfa109SKirk McKusick strerror(errno), errmsg); 700c0bfa109SKirk McKusick return (0); 701c0bfa109SKirk McKusick } 702c0bfa109SKirk McKusick /* Open snapshot */ 703c0bfa109SKirk McKusick if (openfilesys(snapname) == 0) { 704c0bfa109SKirk McKusick unlink(snapname); 705c0bfa109SKirk McKusick pwarn("CANNOT OPEN SNAPSHOT %s: %s, CANNOT RUN IN " 706c0bfa109SKirk McKusick "BACKGROUND\n", snapname, strerror(errno)); 707c0bfa109SKirk McKusick return (0); 708c0bfa109SKirk McKusick } 709c0bfa109SKirk McKusick free(sblock.fs_csp); 710c0bfa109SKirk McKusick free(sblock.fs_si); 711c0bfa109SKirk McKusick havesb = 0; 712c0bfa109SKirk McKusick *filesys = snapname; 713c0bfa109SKirk McKusick cmd.version = FFS_CMD_VERSION; 714c0bfa109SKirk McKusick cmd.handle = fsreadfd; 715c0bfa109SKirk McKusick return (1); 716c0bfa109SKirk McKusick } 717c0bfa109SKirk McKusick 718c0bfa109SKirk McKusick /* 719c0bfa109SKirk McKusick * Open a device or file to be checked by fsck. 720c0bfa109SKirk McKusick */ 721c0bfa109SKirk McKusick static int 722c0bfa109SKirk McKusick openfilesys(char *dev) 723c0bfa109SKirk McKusick { 724c0bfa109SKirk McKusick struct stat statb; 725c0bfa109SKirk McKusick int saved_fsreadfd; 726c0bfa109SKirk McKusick 727c0bfa109SKirk McKusick if (stat(dev, &statb) < 0) { 728c0bfa109SKirk McKusick pfatal("CANNOT STAT %s: %s\n", dev, strerror(errno)); 729c0bfa109SKirk McKusick return (0); 730c0bfa109SKirk McKusick } 731c0bfa109SKirk McKusick if ((statb.st_mode & S_IFMT) != S_IFCHR && 732c0bfa109SKirk McKusick (statb.st_mode & S_IFMT) != S_IFBLK) { 733c0bfa109SKirk McKusick if (bkgrdflag != 0 && (statb.st_flags & SF_SNAPSHOT) == 0) { 734c0bfa109SKirk McKusick pfatal("BACKGROUND FSCK LACKS A SNAPSHOT\n"); 735c0bfa109SKirk McKusick exit(EEXIT); 736c0bfa109SKirk McKusick } 737c0bfa109SKirk McKusick if (bkgrdflag != 0) { 738c0bfa109SKirk McKusick cursnapshot = statb.st_ino; 739c0bfa109SKirk McKusick } else { 740c0bfa109SKirk McKusick pfatal("%s IS NOT A DISK DEVICE\n", dev); 741c0bfa109SKirk McKusick if (reply("CONTINUE") == 0) 742c0bfa109SKirk McKusick return (0); 743c0bfa109SKirk McKusick } 744c0bfa109SKirk McKusick } 745c0bfa109SKirk McKusick saved_fsreadfd = fsreadfd; 746c0bfa109SKirk McKusick if ((fsreadfd = open(dev, O_RDONLY)) < 0) { 747c0bfa109SKirk McKusick fsreadfd = saved_fsreadfd; 748c0bfa109SKirk McKusick pfatal("CANNOT OPEN %s: %s\n", dev, strerror(errno)); 749c0bfa109SKirk McKusick return (0); 750c0bfa109SKirk McKusick } 751c0bfa109SKirk McKusick if (saved_fsreadfd != -1) 752c0bfa109SKirk McKusick close(saved_fsreadfd); 753c0bfa109SKirk McKusick return (1); 754c0bfa109SKirk McKusick } 755c0bfa109SKirk McKusick 756db3f838dSPawel Jakub Dawidek static int 757db3f838dSPawel Jakub Dawidek chkdoreload(struct statfs *mntp) 758db3f838dSPawel Jakub Dawidek { 75924adb851SCraig Rodrigues struct iovec *iov; 76024adb851SCraig Rodrigues int iovlen; 76124adb851SCraig Rodrigues char errmsg[255]; 762db3f838dSPawel Jakub Dawidek 763db3f838dSPawel Jakub Dawidek if (mntp == NULL) 764db3f838dSPawel Jakub Dawidek return (0); 76524adb851SCraig Rodrigues 76624adb851SCraig Rodrigues iov = NULL; 76724adb851SCraig Rodrigues iovlen = 0; 76824adb851SCraig Rodrigues errmsg[0] = '\0'; 769db3f838dSPawel Jakub Dawidek /* 770db3f838dSPawel Jakub Dawidek * We modified a mounted file system. Do a mount update on 771db3f838dSPawel Jakub Dawidek * it unless it is read-write, so we can continue using it 772db3f838dSPawel Jakub Dawidek * as safely as possible. 773db3f838dSPawel Jakub Dawidek */ 774db3f838dSPawel Jakub Dawidek if (mntp->f_flags & MNT_RDONLY) { 77524adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "fstype", "ffs", 4); 77624adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "from", mntp->f_mntfromname, 77724adb851SCraig Rodrigues (size_t)-1); 77824adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "fspath", mntp->f_mntonname, 77924adb851SCraig Rodrigues (size_t)-1); 78024adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "errmsg", errmsg, 78124adb851SCraig Rodrigues sizeof(errmsg)); 782d8f7b008SCraig Rodrigues build_iovec(&iov, &iovlen, "update", NULL, 0); 7836910e995SCraig Rodrigues build_iovec(&iov, &iovlen, "reload", NULL, 0); 784205e074fSCraig Rodrigues /* 785205e074fSCraig Rodrigues * XX: We need the following line until we clean up 786205e074fSCraig Rodrigues * nmount parsing of root mounts and NFS root mounts. 787205e074fSCraig Rodrigues */ 788d8f7b008SCraig Rodrigues build_iovec(&iov, &iovlen, "ro", NULL, 0); 789defc9d50SDavid E. O'Brien if (nmount(iov, iovlen, mntp->f_flags) == 0) { 790db3f838dSPawel Jakub Dawidek return (0); 791db3f838dSPawel Jakub Dawidek } 79224adb851SCraig Rodrigues pwarn("mount reload of '%s' failed: %s %s\n\n", 79324adb851SCraig Rodrigues mntp->f_mntonname, strerror(errno), errmsg); 794db3f838dSPawel Jakub Dawidek return (1); 795db3f838dSPawel Jakub Dawidek } 796db3f838dSPawel Jakub Dawidek return (0); 797db3f838dSPawel Jakub Dawidek } 798db3f838dSPawel Jakub Dawidek 799571b29eeSPeter Wemm /* 80015fca934SKirk McKusick * Get the mount point information for name. 801571b29eeSPeter Wemm */ 802571b29eeSPeter Wemm static struct statfs * 803b70cd7eeSWarner Losh getmntpt(const char *name) 804571b29eeSPeter Wemm { 805571b29eeSPeter Wemm struct stat devstat, mntdevstat; 806d0e1503bSPeter Wemm char device[sizeof(_PATH_DEV) - 1 + MNAMELEN]; 807599304a4SPoul-Henning Kamp char *ddevname; 80815fca934SKirk McKusick struct statfs *mntbuf, *statfsp; 80915fca934SKirk McKusick int i, mntsize, isdev; 810571b29eeSPeter Wemm 81115fca934SKirk McKusick if (stat(name, &devstat) != 0) 812571b29eeSPeter Wemm return (NULL); 81315fca934SKirk McKusick if (S_ISCHR(devstat.st_mode) || S_ISBLK(devstat.st_mode)) 81415fca934SKirk McKusick isdev = 1; 81515fca934SKirk McKusick else 81615fca934SKirk McKusick isdev = 0; 817571b29eeSPeter Wemm mntsize = getmntinfo(&mntbuf, MNT_NOWAIT); 818571b29eeSPeter Wemm for (i = 0; i < mntsize; i++) { 81915fca934SKirk McKusick statfsp = &mntbuf[i]; 820599304a4SPoul-Henning Kamp ddevname = statfsp->f_mntfromname; 821599304a4SPoul-Henning Kamp if (*ddevname != '/') { 822333d0284SConrad Meyer if (strlen(_PATH_DEV) + strlen(ddevname) + 1 > 823333d0284SConrad Meyer sizeof(statfsp->f_mntfromname)) 824333d0284SConrad Meyer continue; 825d0e1503bSPeter Wemm strcpy(device, _PATH_DEV); 826599304a4SPoul-Henning Kamp strcat(device, ddevname); 82715fca934SKirk McKusick strcpy(statfsp->f_mntfromname, device); 82815fca934SKirk McKusick } 82915fca934SKirk McKusick if (isdev == 0) { 83015fca934SKirk McKusick if (strcmp(name, statfsp->f_mntonname)) 83115fca934SKirk McKusick continue; 83215fca934SKirk McKusick return (statfsp); 833d0e1503bSPeter Wemm } 834599304a4SPoul-Henning Kamp if (stat(ddevname, &mntdevstat) == 0 && 835d0e1503bSPeter Wemm mntdevstat.st_rdev == devstat.st_rdev) 83615fca934SKirk McKusick return (statfsp); 837571b29eeSPeter Wemm } 83815fca934SKirk McKusick statfsp = NULL; 83915fca934SKirk McKusick return (statfsp); 840571b29eeSPeter Wemm } 8419ea6f4f0SAdrian Chadd 8429ea6f4f0SAdrian Chadd static void 843b70cd7eeSWarner Losh usage(void) 8449ea6f4f0SAdrian Chadd { 8459ea6f4f0SAdrian Chadd (void) fprintf(stderr, 846db83b143SRenato Botelho "usage: %s [-BCdEFfnpRrSyZ] [-b block] [-c level] [-m mode] filesystem ...\n", 8478e2e167cSMark Murray getprogname()); 8489ea6f4f0SAdrian Chadd exit(1); 8499ea6f4f0SAdrian Chadd } 8507703a6ffSScott Long 8517703a6ffSScott Long void 8527703a6ffSScott Long infohandler(int sig __unused) 8537703a6ffSScott Long { 8547703a6ffSScott Long got_siginfo = 1; 8557703a6ffSScott Long } 8567703a6ffSScott Long 8577703a6ffSScott Long void 8587703a6ffSScott Long alarmhandler(int sig __unused) 8597703a6ffSScott Long { 8607703a6ffSScott Long got_sigalarm = 1; 8617703a6ffSScott Long } 862