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); 79db3f838dSPawel Jakub Dawidek static int chkdoreload(struct statfs *mntp); 80b70cd7eeSWarner Losh static struct statfs *getmntpt(const char *); 818fae3551SRodney W. Grimes 8231f4ab50SBruce Evans int 83b70cd7eeSWarner Losh main(int argc, char *argv[]) 848fae3551SRodney W. Grimes { 858fae3551SRodney W. Grimes int ch; 86d33e92f9SJulian Elischer struct rlimit rlimit; 871660ae87SScott Long struct itimerval itimerval; 88469759f8SDavid Bright int fsret; 899ea6f4f0SAdrian Chadd int ret = 0; 908fae3551SRodney W. Grimes 918fae3551SRodney W. Grimes sync(); 929ea6f4f0SAdrian Chadd skipclean = 1; 93910b491eSKirk McKusick inoopt = 0; 940061238fSKirk McKusick while ((ch = getopt(argc, argv, "b:Bc:CdEfFm:npRrSyZz")) != -1) { 958fae3551SRodney W. Grimes switch (ch) { 968fae3551SRodney W. Grimes case 'b': 979ea6f4f0SAdrian Chadd skipclean = 0; 986a5972dbSKirk McKusick bflag = argtoimax('b', "number", optarg, 10); 996a5972dbSKirk McKusick printf("Alternate super block location: %jd\n", bflag); 1008fae3551SRodney W. Grimes break; 1018fae3551SRodney W. Grimes 1027578c6abSKirk McKusick case 'B': 1037578c6abSKirk McKusick bkgrdflag = 1; 1047578c6abSKirk McKusick break; 1057578c6abSKirk McKusick 1068fae3551SRodney W. Grimes case 'c': 1079ea6f4f0SAdrian Chadd skipclean = 0; 1086a5972dbSKirk McKusick cvtlevel = argtoimax('c', "conversion level", optarg, 1096a5972dbSKirk McKusick 10); 1101c85e6a3SKirk McKusick if (cvtlevel < 3) 1111c85e6a3SKirk McKusick errx(EEXIT, "cannot do level %d conversion", 1121c85e6a3SKirk McKusick cvtlevel); 1138fae3551SRodney W. Grimes break; 1148fae3551SRodney W. Grimes 1158fae3551SRodney W. Grimes case 'd': 1168fae3551SRodney W. Grimes debug++; 1178fae3551SRodney W. Grimes break; 1188fae3551SRodney W. Grimes 1198d3dfc26SDag-Erling Smørgrav case 'E': 1208d3dfc26SDag-Erling Smørgrav Eflag++; 1218d3dfc26SDag-Erling Smørgrav break; 1228d3dfc26SDag-Erling Smørgrav 12341cee58cSDavid Greenman case 'f': 1249ea6f4f0SAdrian Chadd skipclean = 0; 1258fae3551SRodney W. Grimes break; 1268fae3551SRodney W. Grimes 12715fca934SKirk McKusick case 'F': 12815fca934SKirk McKusick bkgrdcheck = 1; 12915fca934SKirk McKusick break; 13015fca934SKirk McKusick 1318fae3551SRodney W. Grimes case 'm': 1326a5972dbSKirk McKusick lfmode = argtoimax('m', "mode", optarg, 8); 1338fae3551SRodney W. Grimes if (lfmode &~ 07777) 134780a5c1eSPeter Wemm errx(EEXIT, "bad mode to -m: %o", lfmode); 1358fae3551SRodney W. Grimes printf("** lost+found creation mode %o\n", lfmode); 1368fae3551SRodney W. Grimes break; 1378fae3551SRodney W. Grimes 1388fae3551SRodney W. Grimes case 'n': 1398fae3551SRodney W. Grimes nflag++; 1408fae3551SRodney W. Grimes yflag = 0; 1418fae3551SRodney W. Grimes break; 1428fae3551SRodney W. Grimes 1439ea6f4f0SAdrian Chadd case 'p': 1449ea6f4f0SAdrian Chadd preen++; 145111a5220SDavid E. O'Brien /*FALLTHROUGH*/ 146111a5220SDavid E. O'Brien 147111a5220SDavid E. O'Brien case 'C': 148111a5220SDavid E. O'Brien ckclean++; 1499ea6f4f0SAdrian Chadd break; 1509ea6f4f0SAdrian Chadd 1517703a6ffSScott Long case 'R': 1527703a6ffSScott Long wantrestart = 1; 1537703a6ffSScott Long break; 154910b491eSKirk McKusick case 'r': 155910b491eSKirk McKusick inoopt++; 156910b491eSKirk McKusick break; 157910b491eSKirk McKusick 158ce779f37SScott Long case 'S': 159ce779f37SScott Long surrender = 1; 160ce779f37SScott Long break; 161ce779f37SScott Long 1628fae3551SRodney W. Grimes case 'y': 1638fae3551SRodney W. Grimes yflag++; 1648fae3551SRodney W. Grimes nflag = 0; 1658fae3551SRodney W. Grimes break; 1668fae3551SRodney W. Grimes 1672b5373deSDag-Erling Smørgrav case 'Z': 1682b5373deSDag-Erling Smørgrav Zflag++; 1692b5373deSDag-Erling Smørgrav break; 1702b5373deSDag-Erling Smørgrav 1710061238fSKirk McKusick case 'z': 1720061238fSKirk McKusick zflag++; 1730061238fSKirk McKusick break; 1740061238fSKirk McKusick 1758fae3551SRodney W. Grimes default: 1769ea6f4f0SAdrian Chadd usage(); 1778fae3551SRodney W. Grimes } 1788fae3551SRodney W. Grimes } 1798fae3551SRodney W. Grimes argc -= optind; 1808fae3551SRodney W. Grimes argv += optind; 1819ea6f4f0SAdrian Chadd 1829ea6f4f0SAdrian Chadd if (!argc) 1839ea6f4f0SAdrian Chadd usage(); 1849ea6f4f0SAdrian Chadd 185c0bfa109SKirk McKusick if (bkgrdflag && cvtlevel > 0) { 186c0bfa109SKirk McKusick pfatal("CANNOT CONVERT A SNAPSHOT\n"); 187c0bfa109SKirk McKusick exit(EEXIT); 188c0bfa109SKirk McKusick } 189c0bfa109SKirk McKusick 1908fae3551SRodney W. Grimes if (signal(SIGINT, SIG_IGN) != SIG_IGN) 1918fae3551SRodney W. Grimes (void)signal(SIGINT, catch); 192111a5220SDavid E. O'Brien if (ckclean) 1938fae3551SRodney W. Grimes (void)signal(SIGQUIT, catchquit); 1946db798caSIan Dowse signal(SIGINFO, infohandler); 1951660ae87SScott Long if (bkgrdflag) { 1961660ae87SScott Long signal(SIGALRM, alarmhandler); 1971660ae87SScott Long itimerval.it_interval.tv_sec = 5; 1981660ae87SScott Long itimerval.it_interval.tv_usec = 0; 1991660ae87SScott Long itimerval.it_value.tv_sec = 5; 2001660ae87SScott Long itimerval.it_value.tv_usec = 0; 2011660ae87SScott Long setitimer(ITIMER_REAL, &itimerval, NULL); 2021660ae87SScott Long } 203d33e92f9SJulian Elischer /* 204d33e92f9SJulian Elischer * Push up our allowed memory limit so we can cope 205d33e92f9SJulian Elischer * with huge file systems. 206d33e92f9SJulian Elischer */ 207d33e92f9SJulian Elischer if (getrlimit(RLIMIT_DATA, &rlimit) == 0) { 208d33e92f9SJulian Elischer rlimit.rlim_cur = rlimit.rlim_max; 209d33e92f9SJulian Elischer (void)setrlimit(RLIMIT_DATA, &rlimit); 210d33e92f9SJulian Elischer } 2117703a6ffSScott Long while (argc > 0) { 212469759f8SDavid Bright if ((fsret = checkfilesys(*argv)) == ERESTART) 2137703a6ffSScott Long continue; 214469759f8SDavid Bright ret |= fsret; 2157703a6ffSScott Long argc--; 2167703a6ffSScott Long argv++; 2177703a6ffSScott Long } 218d33e92f9SJulian Elischer 2198fae3551SRodney W. Grimes if (returntosingle) 2209ea6f4f0SAdrian Chadd ret = 2; 2218fae3551SRodney W. Grimes exit(ret); 2228fae3551SRodney W. Grimes } 2238fae3551SRodney W. Grimes 2246a5972dbSKirk McKusick static intmax_t 2256a5972dbSKirk McKusick argtoimax(int flag, const char *req, const char *str, int base) 2268fae3551SRodney W. Grimes { 2278fae3551SRodney W. Grimes char *cp; 2286a5972dbSKirk McKusick intmax_t ret; 2298fae3551SRodney W. Grimes 2306a5972dbSKirk McKusick ret = strtoimax(str, &cp, base); 2318fae3551SRodney W. Grimes if (cp == str || *cp) 232780a5c1eSPeter Wemm errx(EEXIT, "-%c flag requires a %s", flag, req); 2338fae3551SRodney W. Grimes return (ret); 2348fae3551SRodney W. Grimes } 2358fae3551SRodney W. Grimes 2368fae3551SRodney W. Grimes /* 2378fae3551SRodney W. Grimes * Check the specified file system. 2388fae3551SRodney W. Grimes */ 2398fae3551SRodney W. Grimes /* ARGSUSED */ 240780a5c1eSPeter Wemm static int 241b70cd7eeSWarner Losh checkfilesys(char *filesys) 2428fae3551SRodney W. Grimes { 2431c85e6a3SKirk McKusick ufs2_daddr_t n_ffree, n_bfree; 2448fae3551SRodney W. Grimes struct dups *dp; 2457578c6abSKirk McKusick struct statfs *mntp; 246a1c9ec3cSMatthew D Fleming intmax_t blks, files; 24784fc0d7eSMaxime Henrion size_t size; 248c0bfa109SKirk McKusick int sbreadfailed, ofsmodified; 2498fae3551SRodney W. Grimes 2507703a6ffSScott Long fsutilinit(); 2517703a6ffSScott Long fsckinit(); 25224adb851SCraig Rodrigues 2538fae3551SRodney W. Grimes cdevname = filesys; 254111a5220SDavid E. O'Brien if (debug && ckclean) 2558fae3551SRodney W. Grimes pwarn("starting\n"); 25615fca934SKirk McKusick /* 25715fca934SKirk McKusick * Make best effort to get the disk name. Check first to see 25815fca934SKirk McKusick * if it is listed among the mounted file systems. Failing that 25915fca934SKirk McKusick * check to see if it is listed in /etc/fstab. 26015fca934SKirk McKusick */ 26115fca934SKirk McKusick mntp = getmntpt(filesys); 26215fca934SKirk McKusick if (mntp != NULL) 26315fca934SKirk McKusick filesys = mntp->f_mntfromname; 26415fca934SKirk McKusick else 26515fca934SKirk McKusick filesys = blockcheck(filesys); 26615fca934SKirk McKusick /* 26715fca934SKirk McKusick * If -F flag specified, check to see whether a background check 26815fca934SKirk McKusick * is possible and needed. If possible and needed, exit with 26915fca934SKirk McKusick * status zero. Otherwise exit with status non-zero. A non-zero 27015fca934SKirk McKusick * exit status will cause a foreground check to be run. 27115fca934SKirk McKusick */ 27238375c40SKirk McKusick sblock_init(); 273c0bfa109SKirk McKusick sbreadfailed = 0; 274e6886616SKirk McKusick if (openfilesys(filesys) == 0 || readsb() == 0) 275c0bfa109SKirk McKusick sbreadfailed = 1; 27615fca934SKirk McKusick if (bkgrdcheck) { 277c0bfa109SKirk McKusick if (sbreadfailed) 27815fca934SKirk McKusick exit(3); /* Cannot read superblock */ 279113db2ddSJeff Roberson /* Earlier background failed or journaled */ 280113db2ddSJeff Roberson if (sblock.fs_flags & (FS_NEEDSFSCK | FS_SUJ)) 281113db2ddSJeff Roberson exit(4); 28215fca934SKirk McKusick if ((sblock.fs_flags & FS_DOSOFTDEP) == 0) 28315fca934SKirk McKusick exit(5); /* Not running soft updates */ 28415fca934SKirk McKusick size = MIBSIZE; 28515fca934SKirk McKusick if (sysctlnametomib("vfs.ffs.adjrefcnt", adjrefcnt, &size) < 0) 28615fca934SKirk McKusick exit(6); /* Lacks kernel support */ 28715fca934SKirk McKusick if ((mntp == NULL && sblock.fs_clean == 1) || 28815fca934SKirk McKusick (mntp != NULL && (sblock.fs_flags & FS_UNCLEAN) == 0)) 28915fca934SKirk McKusick exit(7); /* Filesystem clean, report it now */ 29015fca934SKirk McKusick exit(0); 29115fca934SKirk McKusick } 292111a5220SDavid E. O'Brien if (ckclean && skipclean) { 293aef8d244SPawel Jakub Dawidek /* 294aef8d244SPawel Jakub Dawidek * If file system is gjournaled, check it here. 295aef8d244SPawel Jakub Dawidek */ 296c0bfa109SKirk McKusick if (sbreadfailed) 297aef8d244SPawel Jakub Dawidek exit(3); /* Cannot read superblock */ 2980c5a5925SRobert Wing if (bkgrdflag == 0 && 2990c5a5925SRobert Wing (nflag || (fswritefd = open(filesys, O_WRONLY)) < 0)) { 3005cc52631SKirk McKusick fswritefd = -1; 3015cc52631SKirk McKusick if (preen) 3025cc52631SKirk McKusick pfatal("NO WRITE ACCESS"); 3035cc52631SKirk McKusick printf(" (NO WRITE)"); 3045cc52631SKirk McKusick } 305aef8d244SPawel Jakub Dawidek if ((sblock.fs_flags & FS_GJOURNAL) != 0) { 306aef8d244SPawel Jakub Dawidek if (sblock.fs_clean == 1) { 307aef8d244SPawel Jakub Dawidek pwarn("FILE SYSTEM CLEAN; SKIPPING CHECKS\n"); 308aef8d244SPawel Jakub Dawidek exit(0); 309aef8d244SPawel Jakub Dawidek } 310c0bfa109SKirk McKusick if ((sblock.fs_flags & 311c0bfa109SKirk McKusick (FS_UNCLEAN | FS_NEEDSFSCK)) == 0) { 312441e69e4SRobert Wing bufinit(); 313aef8d244SPawel Jakub Dawidek gjournal_check(filesys); 314db3f838dSPawel Jakub Dawidek if (chkdoreload(mntp) == 0) 315aef8d244SPawel Jakub Dawidek exit(0); 316db3f838dSPawel Jakub Dawidek exit(4); 317aef8d244SPawel Jakub Dawidek } else { 318c0bfa109SKirk McKusick pfatal("FULL FSCK NEEDED, CANNOT RUN FAST " 319c0bfa109SKirk McKusick "FSCK\n"); 3200c5a5925SRobert Wing } 3210c5a5925SRobert Wing } 3225cc52631SKirk McKusick close(fswritefd); 323c0bfa109SKirk McKusick fswritefd = -1; 324aef8d244SPawel Jakub Dawidek } 3257578c6abSKirk McKusick if (bkgrdflag) { 326c0bfa109SKirk McKusick switch (setup_bkgrdchk(mntp, sbreadfailed, &filesys)) { 327c0bfa109SKirk McKusick case -1: /* filesystem clean */ 32838375c40SKirk McKusick goto clean; 329c0bfa109SKirk McKusick case 0: /* cannot do background, give up */ 330c0bfa109SKirk McKusick exit(EEXIT); 331c0bfa109SKirk McKusick case 1: /* doing background check, preen rules apply */ 332c0bfa109SKirk McKusick preen = 1; 3337578c6abSKirk McKusick break; 3347578c6abSKirk McKusick } 3357578c6abSKirk McKusick } 3367578c6abSKirk McKusick 337780a5c1eSPeter Wemm switch (setup(filesys)) { 338780a5c1eSPeter Wemm case 0: 3398fae3551SRodney W. Grimes if (preen) 3408fae3551SRodney W. Grimes pfatal("CAN'T CHECK FILE SYSTEM."); 341e8337044SChuck Silvers return (EEXIT); 342780a5c1eSPeter Wemm case -1: 34338375c40SKirk McKusick clean: 344bf58d635SIan Dowse pwarn("clean, %ld free ", (long)(sblock.fs_cstotal.cs_nffree + 345bf58d635SIan Dowse sblock.fs_frag * sblock.fs_cstotal.cs_nbfree)); 346a1c9ec3cSMatthew D Fleming printf("(%jd frags, %jd blocks, %.1f%% fragmentation)\n", 347a1c9ec3cSMatthew D Fleming (intmax_t)sblock.fs_cstotal.cs_nffree, 348a1c9ec3cSMatthew D Fleming (intmax_t)sblock.fs_cstotal.cs_nbfree, 3496b100474SJulian Elischer sblock.fs_cstotal.cs_nffree * 100.0 / sblock.fs_dsize); 35041cee58cSDavid Greenman return (0); 35141cee58cSDavid Greenman } 352113db2ddSJeff Roberson /* 353113db2ddSJeff Roberson * Determine if we can and should do journal recovery. 354113db2ddSJeff Roberson */ 355edad6026SXin LI if ((sblock.fs_flags & FS_SUJ) == FS_SUJ) { 356edad6026SXin LI if ((sblock.fs_flags & FS_NEEDSFSCK) != FS_NEEDSFSCK && skipclean) { 3575cc52631SKirk McKusick sujrecovery = 1; 358113db2ddSJeff Roberson if (suj_check(filesys) == 0) { 359edad6026SXin LI printf("\n***** FILE SYSTEM MARKED CLEAN *****\n"); 360113db2ddSJeff Roberson if (chkdoreload(mntp) == 0) 361113db2ddSJeff Roberson exit(0); 362113db2ddSJeff Roberson exit(4); 363113db2ddSJeff Roberson } 3645cc52631SKirk McKusick sujrecovery = 0; 365edad6026SXin LI printf("** Skipping journal, falling through to full fsck\n\n"); 366edad6026SXin LI } 367ed1a156bSChuck Silvers if (fswritefd != -1) { 368113db2ddSJeff Roberson /* 369113db2ddSJeff Roberson * Write the superblock so we don't try to recover the 37091882068SKirk McKusick * journal on another pass. If this is the only change 37191882068SKirk McKusick * to the filesystem, we do not want it to be called 37291882068SKirk McKusick * out as modified. 373113db2ddSJeff Roberson */ 374113db2ddSJeff Roberson sblock.fs_mtime = time(NULL); 375113db2ddSJeff Roberson sbdirty(); 37691882068SKirk McKusick ofsmodified = fsmodified; 37791882068SKirk McKusick flush(fswritefd, &sblk); 37891882068SKirk McKusick fsmodified = ofsmodified; 379113db2ddSJeff Roberson } 380ed1a156bSChuck Silvers } 38131461aa2SKirk McKusick /* 38231461aa2SKirk McKusick * If the filesystem was run on an old kernel that did not 38331461aa2SKirk McKusick * support check hashes, clear the check-hash flags so that 38431461aa2SKirk McKusick * we do not try to verify them. 38531461aa2SKirk McKusick */ 38631461aa2SKirk McKusick if ((sblock.fs_flags & FS_METACKHASH) == 0) 38731461aa2SKirk McKusick sblock.fs_metackhash = 0; 38831461aa2SKirk McKusick /* 38931461aa2SKirk McKusick * If we are running on a kernel that can provide check hashes 39031461aa2SKirk McKusick * that are not yet enabled for the filesystem and we are 39131461aa2SKirk McKusick * running manually without the -y flag, offer to add any 39231461aa2SKirk McKusick * supported check hashes that are not already enabled. 39331461aa2SKirk McKusick */ 39431461aa2SKirk McKusick ckhashadd = 0; 39531461aa2SKirk McKusick if (preen == 0 && yflag == 0 && sblock.fs_magic != FS_UFS1_MAGIC && 39631461aa2SKirk McKusick fswritefd != -1 && getosreldate() >= P_OSREL_CK_CYLGRP) { 39731461aa2SKirk McKusick if ((sblock.fs_metackhash & CK_CYLGRP) == 0 && 3989fc5d538SKirk McKusick reply("ADD CYLINDER GROUP CHECK-HASH PROTECTION") != 0) { 39931461aa2SKirk McKusick ckhashadd |= CK_CYLGRP; 4009fc5d538SKirk McKusick sblock.fs_metackhash |= CK_CYLGRP; 4019fc5d538SKirk McKusick } 40231461aa2SKirk McKusick if ((sblock.fs_metackhash & CK_SUPERBLOCK) == 0 && 40331461aa2SKirk McKusick getosreldate() >= P_OSREL_CK_SUPERBLOCK && 404ec888383SKirk McKusick reply("ADD SUPERBLOCK CHECK-HASH PROTECTION") != 0) { 4059fc5d538SKirk McKusick ckhashadd |= CK_SUPERBLOCK; 406ec888383SKirk McKusick sblock.fs_metackhash |= CK_SUPERBLOCK; 407ec888383SKirk McKusick } 40831461aa2SKirk McKusick if ((sblock.fs_metackhash & CK_INODE) == 0 && 40931461aa2SKirk McKusick getosreldate() >= P_OSREL_CK_INODE && 4109fc5d538SKirk McKusick reply("ADD INODE CHECK-HASH PROTECTION") != 0) { 41131461aa2SKirk McKusick ckhashadd |= CK_INODE; 4129fc5d538SKirk McKusick sblock.fs_metackhash |= CK_INODE; 4139fc5d538SKirk McKusick } 4148f829a5cSKirk McKusick #ifdef notyet 41531461aa2SKirk McKusick if ((sblock.fs_metackhash & CK_INDIR) == 0 && 41631461aa2SKirk McKusick getosreldate() >= P_OSREL_CK_INDIR && 4179fc5d538SKirk McKusick reply("ADD INDIRECT BLOCK CHECK-HASH PROTECTION") != 0) { 41831461aa2SKirk McKusick ckhashadd |= CK_INDIR; 4199fc5d538SKirk McKusick sblock.fs_metackhash |= CK_INDIR; 4209fc5d538SKirk McKusick } 42131461aa2SKirk McKusick if ((sblock.fs_metackhash & CK_DIR) == 0 && 42231461aa2SKirk McKusick getosreldate() >= P_OSREL_CK_DIR && 4239fc5d538SKirk McKusick reply("ADD DIRECTORY CHECK-HASH PROTECTION") != 0) { 42431461aa2SKirk McKusick ckhashadd |= CK_DIR; 4259fc5d538SKirk McKusick sblock.fs_metackhash |= CK_DIR; 4269fc5d538SKirk McKusick } 42731461aa2SKirk McKusick #endif /* notyet */ 4289fc5d538SKirk McKusick if (ckhashadd != 0) { 42931461aa2SKirk McKusick sblock.fs_flags |= FS_METACKHASH; 4309fc5d538SKirk McKusick sbdirty(); 4319fc5d538SKirk McKusick } 43231461aa2SKirk McKusick } 4338fae3551SRodney W. Grimes /* 434b1897c19SJulian Elischer * Cleared if any questions answered no. Used to decide if 435b1897c19SJulian Elischer * the superblock should be marked clean. 436b1897c19SJulian Elischer */ 437b1897c19SJulian Elischer resolved = 1; 438b1897c19SJulian Elischer /* 4398fae3551SRodney W. Grimes * 1: scan inodes tallying blocks used 4408fae3551SRodney W. Grimes */ 4418fae3551SRodney W. Grimes if (preen == 0) { 4428fae3551SRodney W. Grimes printf("** Last Mounted on %s\n", sblock.fs_fsmnt); 4437578c6abSKirk McKusick if (mntp != NULL && mntp->f_flags & MNT_ROOTFS) 4448fae3551SRodney W. Grimes printf("** Root file system\n"); 4458fae3551SRodney W. Grimes printf("** Phase 1 - Check Blocks and Sizes\n"); 4468fae3551SRodney W. Grimes } 447ed75b5a1SKirk McKusick clock_gettime(CLOCK_REALTIME_PRECISE, &startprog); 4488fae3551SRodney W. Grimes pass1(); 449ed75b5a1SKirk McKusick IOstats("Pass1"); 4508fae3551SRodney W. Grimes 4518fae3551SRodney W. Grimes /* 4528fae3551SRodney W. Grimes * 1b: locate first references to duplicates, if any 4538fae3551SRodney W. Grimes */ 4548fae3551SRodney W. Grimes if (duplist) { 455b1897c19SJulian Elischer if (preen || usedsoftdep) 456c82df0a0SKirk McKusick pfatal("INTERNAL ERROR: DUPS WITH %s%s%s", 45721be55ccSKirk McKusick preen ? "-p" : "", 458c82df0a0SKirk McKusick (preen && usedsoftdep) ? " AND " : "", 459c82df0a0SKirk McKusick usedsoftdep ? "SOFTUPDATES" : ""); 4608fae3551SRodney W. Grimes printf("** Phase 1b - Rescan For More DUPS\n"); 4618fae3551SRodney W. Grimes pass1b(); 462ed75b5a1SKirk McKusick IOstats("Pass1b"); 4638fae3551SRodney W. Grimes } 4648fae3551SRodney W. Grimes 4658fae3551SRodney W. Grimes /* 4668fae3551SRodney W. Grimes * 2: traverse directories from root to mark all connected directories 4678fae3551SRodney W. Grimes */ 4688fae3551SRodney W. Grimes if (preen == 0) 4698fae3551SRodney W. Grimes printf("** Phase 2 - Check Pathnames\n"); 4708fae3551SRodney W. Grimes pass2(); 471ed75b5a1SKirk McKusick IOstats("Pass2"); 4728fae3551SRodney W. Grimes 4738fae3551SRodney W. Grimes /* 4748fae3551SRodney W. Grimes * 3: scan inodes looking for disconnected directories 4758fae3551SRodney W. Grimes */ 4768fae3551SRodney W. Grimes if (preen == 0) 4778fae3551SRodney W. Grimes printf("** Phase 3 - Check Connectivity\n"); 4788fae3551SRodney W. Grimes pass3(); 479ed75b5a1SKirk McKusick IOstats("Pass3"); 4808fae3551SRodney W. Grimes 4818fae3551SRodney W. Grimes /* 4828fae3551SRodney W. Grimes * 4: scan inodes looking for disconnected files; check reference counts 4838fae3551SRodney W. Grimes */ 4848fae3551SRodney W. Grimes if (preen == 0) 4858fae3551SRodney W. Grimes printf("** Phase 4 - Check Reference Counts\n"); 4868fae3551SRodney W. Grimes pass4(); 487ed75b5a1SKirk McKusick IOstats("Pass4"); 4888fae3551SRodney W. Grimes 4898fae3551SRodney W. Grimes /* 4908fae3551SRodney W. Grimes * 5: check and repair resource counts in cylinder groups 4918fae3551SRodney W. Grimes */ 4928fae3551SRodney W. Grimes if (preen == 0) 4938fae3551SRodney W. Grimes printf("** Phase 5 - Check Cyl groups\n"); 4948fae3551SRodney W. Grimes pass5(); 495ed75b5a1SKirk McKusick IOstats("Pass5"); 4968fae3551SRodney W. Grimes 4978fae3551SRodney W. Grimes /* 4988fae3551SRodney W. Grimes * print out summary statistics 4998fae3551SRodney W. Grimes */ 5008fae3551SRodney W. Grimes n_ffree = sblock.fs_cstotal.cs_nffree; 5018fae3551SRodney W. Grimes n_bfree = sblock.fs_cstotal.cs_nbfree; 5021dc349abSEd Maste files = maxino - UFS_ROOTINO - sblock.fs_cstotal.cs_nifree - n_files; 5037578c6abSKirk McKusick blks = n_blks + 5047578c6abSKirk McKusick sblock.fs_ncg * (cgdmin(&sblock, 0) - cgsblock(&sblock, 0)); 5057578c6abSKirk McKusick blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0); 5067578c6abSKirk McKusick blks += howmany(sblock.fs_cssize, sblock.fs_fsize); 5077578c6abSKirk McKusick blks = maxfsblock - (n_ffree + sblock.fs_frag * n_bfree) - blks; 5087578c6abSKirk McKusick if (bkgrdflag && (files > 0 || blks > 0)) { 5097578c6abSKirk McKusick countdirs = sblock.fs_cstotal.cs_ndir - countdirs; 510a1c9ec3cSMatthew D Fleming pwarn("Reclaimed: %ld directories, %jd files, %jd fragments\n", 511a1c9ec3cSMatthew D Fleming countdirs, files - countdirs, blks); 5127578c6abSKirk McKusick } 51384fc0d7eSMaxime Henrion pwarn("%ld files, %jd used, %ju free ", 51484fc0d7eSMaxime Henrion (long)n_files, (intmax_t)n_blks, 51584fc0d7eSMaxime Henrion (uintmax_t)n_ffree + sblock.fs_frag * n_bfree); 51684fc0d7eSMaxime Henrion printf("(%ju frags, %ju blocks, %.1f%% fragmentation)\n", 51784fc0d7eSMaxime Henrion (uintmax_t)n_ffree, (uintmax_t)n_bfree, 51884fc0d7eSMaxime Henrion n_ffree * 100.0 / sblock.fs_dsize); 5198fae3551SRodney W. Grimes if (debug) { 5207578c6abSKirk McKusick if (files < 0) 521a1c9ec3cSMatthew D Fleming printf("%jd inodes missing\n", -files); 5227578c6abSKirk McKusick if (blks < 0) 523a1c9ec3cSMatthew D Fleming printf("%jd blocks missing\n", -blks); 5248fae3551SRodney W. Grimes if (duplist != NULL) { 5258fae3551SRodney W. Grimes printf("The following duplicate blocks remain:"); 5268fae3551SRodney W. Grimes for (dp = duplist; dp; dp = dp->next) 527a1c9ec3cSMatthew D Fleming printf(" %jd,", (intmax_t)dp->dup); 5288fae3551SRodney W. Grimes printf("\n"); 5298fae3551SRodney W. Grimes } 5308fae3551SRodney W. Grimes } 5318fae3551SRodney W. Grimes duplist = (struct dups *)0; 5328fae3551SRodney W. Grimes muldup = (struct dups *)0; 5338fae3551SRodney W. Grimes inocleanup(); 534802cd8e6SDavid Greenman if (fsmodified) { 535d33e92f9SJulian Elischer sblock.fs_time = time(NULL); 5368fae3551SRodney W. Grimes sbdirty(); 5378fae3551SRodney W. Grimes } 5385cc52631SKirk McKusick if (cvtlevel && (sblk.b_flags & B_DIRTY) != 0) { 5398fae3551SRodney W. Grimes /* 5408fae3551SRodney W. Grimes * Write out the duplicate super blocks 5418fae3551SRodney W. Grimes */ 542f644caadSKirk McKusick if (sbput(fswritefd, &sblock, sblock.fs_ncg) == 0) 543f644caadSKirk McKusick fsmodified = 1; 5448fae3551SRodney W. Grimes } 545b1897c19SJulian Elischer if (rerun) 546b1897c19SJulian Elischer resolved = 0; 547571b29eeSPeter Wemm 548d0e1503bSPeter Wemm /* 549aa5344b7SPeter Wemm * Check to see if the file system is mounted read-write. 550d0e1503bSPeter Wemm */ 5517578c6abSKirk McKusick if (bkgrdflag == 0 && mntp != NULL && (mntp->f_flags & MNT_RDONLY) == 0) 552b1897c19SJulian Elischer resolved = 0; 553b1897c19SJulian Elischer ckfini(resolved); 554d33e92f9SJulian Elischer 555d33e92f9SJulian Elischer if (fsmodified && !preen) 5568fae3551SRodney W. Grimes printf("\n***** FILE SYSTEM WAS MODIFIED *****\n"); 5577703a6ffSScott Long if (rerun) { 5587703a6ffSScott Long if (wantrestart && (restarts++ < 10) && 5597703a6ffSScott Long (preen || reply("RESTART"))) 5607703a6ffSScott Long return (ERESTART); 56147ceb636SGuido van Rooij printf("\n***** PLEASE RERUN FSCK *****\n"); 5627703a6ffSScott Long } 563db3f838dSPawel Jakub Dawidek if (chkdoreload(mntp) != 0) { 564d33e92f9SJulian Elischer if (!fsmodified) 565d33e92f9SJulian Elischer return (0); 5668fae3551SRodney W. Grimes if (!preen) 5678fae3551SRodney W. Grimes printf("\n***** REBOOT NOW *****\n"); 5688fae3551SRodney W. Grimes sync(); 5698fae3551SRodney W. Grimes return (4); 5708fae3551SRodney W. Grimes } 571469759f8SDavid Bright return (rerun ? ERERUN : 0); 5728fae3551SRodney W. Grimes } 573571b29eeSPeter Wemm 574c0bfa109SKirk McKusick /* 575c0bfa109SKirk McKusick * If we are to do a background check: 576c0bfa109SKirk McKusick * Get the mount point information of the file system 577c0bfa109SKirk McKusick * If already clean, return -1 578c0bfa109SKirk McKusick * Check that kernel supports background fsck 579c0bfa109SKirk McKusick * Find or create the snapshot directory 580c0bfa109SKirk McKusick * Create the snapshot file 581c0bfa109SKirk McKusick * Open snapshot 582c0bfa109SKirk McKusick * If anything fails print reason and return 0 which exits 583c0bfa109SKirk McKusick */ 584c0bfa109SKirk McKusick static int 585c0bfa109SKirk McKusick setup_bkgrdchk(struct statfs *mntp, int sbreadfailed, char **filesys) 586c0bfa109SKirk McKusick { 587c0bfa109SKirk McKusick struct stat snapdir; 588c0bfa109SKirk McKusick struct group *grp; 589c0bfa109SKirk McKusick struct iovec *iov; 590c0bfa109SKirk McKusick char errmsg[255]; 591c0bfa109SKirk McKusick int iovlen; 5929583be04SKirk McKusick size_t size; 593c0bfa109SKirk McKusick 594c0bfa109SKirk McKusick /* Get the mount point information of the file system */ 595c0bfa109SKirk McKusick if (mntp == NULL) { 596c0bfa109SKirk McKusick pwarn("NOT MOUNTED, CANNOT RUN IN BACKGROUND\n"); 597c0bfa109SKirk McKusick return (0); 598c0bfa109SKirk McKusick } 599c0bfa109SKirk McKusick if ((mntp->f_flags & MNT_RDONLY) != 0) { 600c0bfa109SKirk McKusick pwarn("MOUNTED READ-ONLY, CANNOT RUN IN BACKGROUND\n"); 601c0bfa109SKirk McKusick return (0); 602c0bfa109SKirk McKusick } 603c0bfa109SKirk McKusick if ((mntp->f_flags & MNT_SOFTDEP) == 0) { 604c0bfa109SKirk McKusick pwarn("NOT USING SOFT UPDATES, CANNOT RUN IN BACKGROUND\n"); 605c0bfa109SKirk McKusick return (0); 606c0bfa109SKirk McKusick } 607c0bfa109SKirk McKusick if (sbreadfailed) { 608c0bfa109SKirk McKusick pwarn("SUPERBLOCK READ FAILED, CANNOT RUN IN BACKGROUND\n"); 609c0bfa109SKirk McKusick return (0); 610c0bfa109SKirk McKusick } 611c0bfa109SKirk McKusick if ((sblock.fs_flags & FS_NEEDSFSCK) != 0) { 612c0bfa109SKirk McKusick pwarn("FULL FSCK NEEDED, CANNOT RUN IN BACKGROUND\n"); 613c0bfa109SKirk McKusick return (0); 614c0bfa109SKirk McKusick } 615c0bfa109SKirk McKusick if ((sblock.fs_flags & FS_SUJ) != 0) { 616c0bfa109SKirk McKusick pwarn("JOURNALED FILESYSTEM, CANNOT RUN IN BACKGROUND\n"); 617c0bfa109SKirk McKusick return (0); 618c0bfa109SKirk McKusick } 619c0bfa109SKirk McKusick if (skipclean && ckclean && 620c0bfa109SKirk McKusick (sblock.fs_flags & (FS_UNCLEAN|FS_NEEDSFSCK)) == 0) { 621c0bfa109SKirk McKusick /* 622c0bfa109SKirk McKusick * file system is clean; 623c0bfa109SKirk McKusick * skip snapshot and report it clean 624c0bfa109SKirk McKusick */ 625c0bfa109SKirk McKusick pwarn("FILE SYSTEM CLEAN; SKIPPING CHECKS\n"); 626c0bfa109SKirk McKusick return (-1); 627c0bfa109SKirk McKusick } 628c0bfa109SKirk McKusick /* Check that kernel supports background fsck */ 629c0bfa109SKirk McKusick size = MIBSIZE; 630c0bfa109SKirk McKusick if (sysctlnametomib("vfs.ffs.adjrefcnt", adjrefcnt, &size) < 0|| 631c0bfa109SKirk McKusick sysctlnametomib("vfs.ffs.adjblkcnt", adjblkcnt, &size) < 0|| 632c0bfa109SKirk McKusick sysctlnametomib("vfs.ffs.setsize", setsize, &size) < 0 || 633c0bfa109SKirk McKusick sysctlnametomib("vfs.ffs.freefiles", freefiles, &size) < 0|| 634c0bfa109SKirk McKusick sysctlnametomib("vfs.ffs.freedirs", freedirs, &size) < 0 || 635c0bfa109SKirk McKusick sysctlnametomib("vfs.ffs.freeblks", freeblks, &size) < 0) { 636c0bfa109SKirk McKusick pwarn("KERNEL LACKS BACKGROUND FSCK SUPPORT\n"); 637c0bfa109SKirk McKusick return (0); 638c0bfa109SKirk McKusick } 639c0bfa109SKirk McKusick /* 640c0bfa109SKirk McKusick * When kernel lacks runtime bgfsck superblock summary 641c0bfa109SKirk McKusick * adjustment functionality, it does not mean we can not 642c0bfa109SKirk McKusick * continue, as old kernels will recompute the summary at 643c0bfa109SKirk McKusick * mount time. However, it will be an unexpected softupdates 644c0bfa109SKirk McKusick * inconsistency if it turns out that the summary is still 645c0bfa109SKirk McKusick * incorrect. Set a flag so subsequent operation can know this. 646c0bfa109SKirk McKusick */ 647c0bfa109SKirk McKusick bkgrdsumadj = 1; 648c0bfa109SKirk McKusick if (sysctlnametomib("vfs.ffs.adjndir", adjndir, &size) < 0 || 649c0bfa109SKirk McKusick sysctlnametomib("vfs.ffs.adjnbfree", adjnbfree, &size) < 0 || 650c0bfa109SKirk McKusick sysctlnametomib("vfs.ffs.adjnifree", adjnifree, &size) < 0 || 651c0bfa109SKirk McKusick sysctlnametomib("vfs.ffs.adjnffree", adjnffree, &size) < 0 || 652c0bfa109SKirk McKusick sysctlnametomib("vfs.ffs.adjnumclusters", adjnumclusters, 653c0bfa109SKirk McKusick &size) < 0) { 654c0bfa109SKirk McKusick bkgrdsumadj = 0; 655c0bfa109SKirk McKusick pwarn("KERNEL LACKS RUNTIME SUPERBLOCK SUMMARY ADJUSTMENT " 656c0bfa109SKirk McKusick "SUPPORT\n"); 657c0bfa109SKirk McKusick } 658c0bfa109SKirk McKusick /* Find or create the snapshot directory */ 659c0bfa109SKirk McKusick snprintf(snapname, sizeof snapname, "%s/.snap", 660c0bfa109SKirk McKusick mntp->f_mntonname); 661c0bfa109SKirk McKusick if (stat(snapname, &snapdir) < 0) { 662c0bfa109SKirk McKusick if (errno != ENOENT) { 663c0bfa109SKirk McKusick pwarn("CANNOT FIND SNAPSHOT DIRECTORY %s: %s, CANNOT " 664c0bfa109SKirk McKusick "RUN IN BACKGROUND\n", snapname, strerror(errno)); 665c0bfa109SKirk McKusick return (0); 666c0bfa109SKirk McKusick } 667c0bfa109SKirk McKusick if ((grp = getgrnam("operator")) == NULL || 668c0bfa109SKirk McKusick mkdir(snapname, 0770) < 0 || 669c0bfa109SKirk McKusick chown(snapname, -1, grp->gr_gid) < 0 || 670c0bfa109SKirk McKusick chmod(snapname, 0770) < 0) { 671c0bfa109SKirk McKusick pwarn("CANNOT CREATE SNAPSHOT DIRECTORY %s: %s, " 672c0bfa109SKirk McKusick "CANNOT RUN IN BACKGROUND\n", snapname, 673c0bfa109SKirk McKusick strerror(errno)); 674c0bfa109SKirk McKusick return (0); 675c0bfa109SKirk McKusick } 676c0bfa109SKirk McKusick } else if (!S_ISDIR(snapdir.st_mode)) { 677c0bfa109SKirk McKusick pwarn("%s IS NOT A DIRECTORY, CANNOT RUN IN BACKGROUND\n", 678c0bfa109SKirk McKusick snapname); 679c0bfa109SKirk McKusick return (0); 680c0bfa109SKirk McKusick } 681c0bfa109SKirk McKusick /* Create the snapshot file */ 682c0bfa109SKirk McKusick iov = NULL; 683c0bfa109SKirk McKusick iovlen = 0; 684c0bfa109SKirk McKusick errmsg[0] = '\0'; 685c0bfa109SKirk McKusick snprintf(snapname, sizeof snapname, "%s/.snap/fsck_snapshot", 686c0bfa109SKirk McKusick mntp->f_mntonname); 687c0bfa109SKirk McKusick build_iovec(&iov, &iovlen, "fstype", "ffs", 4); 688c0bfa109SKirk McKusick build_iovec(&iov, &iovlen, "from", snapname, (size_t)-1); 689c0bfa109SKirk McKusick build_iovec(&iov, &iovlen, "fspath", mntp->f_mntonname, (size_t)-1); 690c0bfa109SKirk McKusick build_iovec(&iov, &iovlen, "errmsg", errmsg, sizeof(errmsg)); 691c0bfa109SKirk McKusick build_iovec(&iov, &iovlen, "update", NULL, 0); 692c0bfa109SKirk McKusick build_iovec(&iov, &iovlen, "snapshot", NULL, 0); 693299fcf40SGordon Bergling /* Create snapshot, removing old snapshot if it exists */ 694c0bfa109SKirk McKusick while (nmount(iov, iovlen, mntp->f_flags) < 0) { 695c0bfa109SKirk McKusick if (errno == EEXIST && unlink(snapname) == 0) 696c0bfa109SKirk McKusick continue; 697c0bfa109SKirk McKusick pwarn("CANNOT CREATE SNAPSHOT %s: %s %s\n", snapname, 698c0bfa109SKirk McKusick strerror(errno), errmsg); 699c0bfa109SKirk McKusick return (0); 700c0bfa109SKirk McKusick } 701c0bfa109SKirk McKusick /* Open snapshot */ 702c0bfa109SKirk McKusick if (openfilesys(snapname) == 0) { 703c0bfa109SKirk McKusick unlink(snapname); 704c0bfa109SKirk McKusick pwarn("CANNOT OPEN SNAPSHOT %s: %s, CANNOT RUN IN " 705c0bfa109SKirk McKusick "BACKGROUND\n", snapname, strerror(errno)); 706c0bfa109SKirk McKusick return (0); 707c0bfa109SKirk McKusick } 708c0bfa109SKirk McKusick free(sblock.fs_csp); 709c0bfa109SKirk McKusick free(sblock.fs_si); 710c0bfa109SKirk McKusick havesb = 0; 711c0bfa109SKirk McKusick *filesys = snapname; 712c0bfa109SKirk McKusick cmd.version = FFS_CMD_VERSION; 713c0bfa109SKirk McKusick cmd.handle = fsreadfd; 714c0bfa109SKirk McKusick return (1); 715c0bfa109SKirk McKusick } 716c0bfa109SKirk McKusick 717db3f838dSPawel Jakub Dawidek static int 718db3f838dSPawel Jakub Dawidek chkdoreload(struct statfs *mntp) 719db3f838dSPawel Jakub Dawidek { 72024adb851SCraig Rodrigues struct iovec *iov; 72124adb851SCraig Rodrigues int iovlen; 72224adb851SCraig Rodrigues char errmsg[255]; 723db3f838dSPawel Jakub Dawidek 724db3f838dSPawel Jakub Dawidek if (mntp == NULL) 725db3f838dSPawel Jakub Dawidek return (0); 72624adb851SCraig Rodrigues 72724adb851SCraig Rodrigues iov = NULL; 72824adb851SCraig Rodrigues iovlen = 0; 72924adb851SCraig Rodrigues errmsg[0] = '\0'; 730db3f838dSPawel Jakub Dawidek /* 731db3f838dSPawel Jakub Dawidek * We modified a mounted file system. Do a mount update on 732db3f838dSPawel Jakub Dawidek * it unless it is read-write, so we can continue using it 733db3f838dSPawel Jakub Dawidek * as safely as possible. 734db3f838dSPawel Jakub Dawidek */ 735db3f838dSPawel Jakub Dawidek if (mntp->f_flags & MNT_RDONLY) { 73624adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "fstype", "ffs", 4); 73724adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "from", mntp->f_mntfromname, 73824adb851SCraig Rodrigues (size_t)-1); 73924adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "fspath", mntp->f_mntonname, 74024adb851SCraig Rodrigues (size_t)-1); 74124adb851SCraig Rodrigues build_iovec(&iov, &iovlen, "errmsg", errmsg, 74224adb851SCraig Rodrigues sizeof(errmsg)); 743d8f7b008SCraig Rodrigues build_iovec(&iov, &iovlen, "update", NULL, 0); 7446910e995SCraig Rodrigues build_iovec(&iov, &iovlen, "reload", NULL, 0); 745205e074fSCraig Rodrigues /* 746205e074fSCraig Rodrigues * XX: We need the following line until we clean up 747205e074fSCraig Rodrigues * nmount parsing of root mounts and NFS root mounts. 748205e074fSCraig Rodrigues */ 749d8f7b008SCraig Rodrigues build_iovec(&iov, &iovlen, "ro", NULL, 0); 750defc9d50SDavid E. O'Brien if (nmount(iov, iovlen, mntp->f_flags) == 0) { 751db3f838dSPawel Jakub Dawidek return (0); 752db3f838dSPawel Jakub Dawidek } 75324adb851SCraig Rodrigues pwarn("mount reload of '%s' failed: %s %s\n\n", 75424adb851SCraig Rodrigues mntp->f_mntonname, strerror(errno), errmsg); 755db3f838dSPawel Jakub Dawidek return (1); 756db3f838dSPawel Jakub Dawidek } 757db3f838dSPawel Jakub Dawidek return (0); 758db3f838dSPawel Jakub Dawidek } 759db3f838dSPawel Jakub Dawidek 760571b29eeSPeter Wemm /* 76115fca934SKirk McKusick * Get the mount point information for name. 762571b29eeSPeter Wemm */ 763571b29eeSPeter Wemm static struct statfs * 764b70cd7eeSWarner Losh getmntpt(const char *name) 765571b29eeSPeter Wemm { 766571b29eeSPeter Wemm struct stat devstat, mntdevstat; 767d0e1503bSPeter Wemm char device[sizeof(_PATH_DEV) - 1 + MNAMELEN]; 768599304a4SPoul-Henning Kamp char *ddevname; 76915fca934SKirk McKusick struct statfs *mntbuf, *statfsp; 77015fca934SKirk McKusick int i, mntsize, isdev; 771571b29eeSPeter Wemm 77215fca934SKirk McKusick if (stat(name, &devstat) != 0) 773571b29eeSPeter Wemm return (NULL); 77415fca934SKirk McKusick if (S_ISCHR(devstat.st_mode) || S_ISBLK(devstat.st_mode)) 77515fca934SKirk McKusick isdev = 1; 77615fca934SKirk McKusick else 77715fca934SKirk McKusick isdev = 0; 778571b29eeSPeter Wemm mntsize = getmntinfo(&mntbuf, MNT_NOWAIT); 779571b29eeSPeter Wemm for (i = 0; i < mntsize; i++) { 78015fca934SKirk McKusick statfsp = &mntbuf[i]; 781599304a4SPoul-Henning Kamp ddevname = statfsp->f_mntfromname; 782599304a4SPoul-Henning Kamp if (*ddevname != '/') { 783333d0284SConrad Meyer if (strlen(_PATH_DEV) + strlen(ddevname) + 1 > 784333d0284SConrad Meyer sizeof(statfsp->f_mntfromname)) 785333d0284SConrad Meyer continue; 786d0e1503bSPeter Wemm strcpy(device, _PATH_DEV); 787599304a4SPoul-Henning Kamp strcat(device, ddevname); 78815fca934SKirk McKusick strcpy(statfsp->f_mntfromname, device); 78915fca934SKirk McKusick } 79015fca934SKirk McKusick if (isdev == 0) { 79115fca934SKirk McKusick if (strcmp(name, statfsp->f_mntonname)) 79215fca934SKirk McKusick continue; 79315fca934SKirk McKusick return (statfsp); 794d0e1503bSPeter Wemm } 795599304a4SPoul-Henning Kamp if (stat(ddevname, &mntdevstat) == 0 && 796d0e1503bSPeter Wemm mntdevstat.st_rdev == devstat.st_rdev) 79715fca934SKirk McKusick return (statfsp); 798571b29eeSPeter Wemm } 79915fca934SKirk McKusick statfsp = NULL; 80015fca934SKirk McKusick return (statfsp); 801571b29eeSPeter Wemm } 8029ea6f4f0SAdrian Chadd 8039ea6f4f0SAdrian Chadd static void 804b70cd7eeSWarner Losh usage(void) 8059ea6f4f0SAdrian Chadd { 8069ea6f4f0SAdrian Chadd (void) fprintf(stderr, 807db83b143SRenato Botelho "usage: %s [-BCdEFfnpRrSyZ] [-b block] [-c level] [-m mode] filesystem ...\n", 8088e2e167cSMark Murray getprogname()); 8099ea6f4f0SAdrian Chadd exit(1); 8109ea6f4f0SAdrian Chadd } 8117703a6ffSScott Long 8127703a6ffSScott Long void 8137703a6ffSScott Long infohandler(int sig __unused) 8147703a6ffSScott Long { 8157703a6ffSScott Long got_siginfo = 1; 8167703a6ffSScott Long } 8177703a6ffSScott Long 8187703a6ffSScott Long void 8197703a6ffSScott Long alarmhandler(int sig __unused) 8207703a6ffSScott Long { 8217703a6ffSScott Long got_sigalarm = 1; 8227703a6ffSScott Long } 823