main.c revision 221233
1214571Sdim/* 2214571Sdim * Copyright (c) 1980, 1986, 1993 3214571Sdim * The Regents of the University of California. All rights reserved. 4214571Sdim * 5214571Sdim * Redistribution and use in source and binary forms, with or without 6214571Sdim * modification, are permitted provided that the following conditions 7214571Sdim * are met: 8214571Sdim * 1. Redistributions of source code must retain the above copyright 9214571Sdim * notice, this list of conditions and the following disclaimer. 10214571Sdim * 2. Redistributions in binary form must reproduce the above copyright 11214571Sdim * notice, this list of conditions and the following disclaimer in the 12214571Sdim * documentation and/or other materials provided with the distribution. 13214571Sdim * 4. Neither the name of the University nor the names of its contributors 14214571Sdim * may be used to endorse or promote products derived from this software 15214571Sdim * without specific prior written permission. 16214571Sdim * 17214571Sdim * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18214571Sdim * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19214571Sdim * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20214571Sdim * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21214571Sdim * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22214571Sdim * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23214571Sdim * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24214571Sdim * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25214571Sdim * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26214571Sdim * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27214571Sdim * SUCH DAMAGE. 28214571Sdim */ 29214571Sdim 30214571Sdim#if 0 31214571Sdim#ifndef lint 32214571Sdimstatic const char copyright[] = 33214571Sdim"@(#) Copyright (c) 1980, 1986, 1993\n\ 34214571Sdim The Regents of the University of California. All rights reserved.\n"; 35214571Sdim#endif /* not lint */ 36214571Sdim 37214571Sdim#ifndef lint 38214571Sdimstatic char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/14/95"; 39214571Sdim#endif /* not lint */ 40214571Sdim#endif 41214571Sdim#include <sys/cdefs.h> 42214571Sdim__FBSDID("$FreeBSD: head/sbin/fsck_ffs/main.c 221233 2011-04-29 23:00:23Z des $"); 43214571Sdim 44214571Sdim#include <sys/param.h> 45214571Sdim#include <sys/file.h> 46214571Sdim#include <sys/mount.h> 47214571Sdim#include <sys/resource.h> 48214571Sdim#include <sys/stat.h> 49214571Sdim#include <sys/sysctl.h> 50214571Sdim#include <sys/uio.h> 51214571Sdim#include <sys/disklabel.h> 52214571Sdim 53214571Sdim#include <ufs/ufs/dinode.h> 54214571Sdim#include <ufs/ffs/fs.h> 55214571Sdim 56214571Sdim#include <err.h> 57214571Sdim#include <errno.h> 58214571Sdim#include <fstab.h> 59214571Sdim#include <grp.h> 60214571Sdim#include <mntopts.h> 61214571Sdim#include <paths.h> 62214571Sdim#include <stdint.h> 63214571Sdim#include <string.h> 64214571Sdim#include <time.h> 65214571Sdim 66214571Sdim#include "fsck.h" 67214571Sdim 68214571Sdimstatic void usage(void) __dead2; 69214571Sdimstatic int argtoi(int flag, const char *req, const char *str, int base); 70214571Sdimstatic int checkfilesys(char *filesys); 71214571Sdimstatic int chkdoreload(struct statfs *mntp); 72214571Sdimstatic struct statfs *getmntpt(const char *); 73214571Sdim 74214571Sdimint 75214571Sdimmain(int argc, char *argv[]) 76214571Sdim{ 77214571Sdim int ch; 78214571Sdim struct rlimit rlimit; 79214571Sdim struct itimerval itimerval; 80214571Sdim int ret = 0; 81214571Sdim 82214571Sdim sync(); 83214571Sdim skipclean = 1; 84214571Sdim inoopt = 0; 85214571Sdim while ((ch = getopt(argc, argv, "b:Bc:CdEfFm:npry")) != -1) { 86214571Sdim switch (ch) { 87214571Sdim case 'b': 88214571Sdim skipclean = 0; 89214571Sdim bflag = argtoi('b', "number", optarg, 10); 90214571Sdim printf("Alternate super block location: %d\n", bflag); 91214571Sdim break; 92214571Sdim 93214571Sdim case 'B': 94214571Sdim bkgrdflag = 1; 95214571Sdim break; 96214571Sdim 97214571Sdim case 'c': 98214571Sdim skipclean = 0; 99214571Sdim cvtlevel = argtoi('c', "conversion level", optarg, 10); 100214571Sdim if (cvtlevel < 3) 101214571Sdim errx(EEXIT, "cannot do level %d conversion", 102214571Sdim cvtlevel); 103214571Sdim break; 104214571Sdim 105214571Sdim case 'd': 106214571Sdim debug++; 107214571Sdim break; 108214571Sdim 109214571Sdim case 'E': 110214571Sdim Eflag++; 111214571Sdim break; 112214571Sdim 113214571Sdim case 'f': 114214571Sdim skipclean = 0; 115214571Sdim break; 116214571Sdim 117214571Sdim case 'F': 118214571Sdim bkgrdcheck = 1; 119214571Sdim break; 120214571Sdim 121214571Sdim case 'm': 122214571Sdim lfmode = argtoi('m', "mode", optarg, 8); 123214571Sdim if (lfmode &~ 07777) 124214571Sdim errx(EEXIT, "bad mode to -m: %o", lfmode); 125214571Sdim printf("** lost+found creation mode %o\n", lfmode); 126214571Sdim break; 127214571Sdim 128214571Sdim case 'n': 129214571Sdim nflag++; 130214571Sdim yflag = 0; 131214571Sdim break; 132214571Sdim 133214571Sdim case 'p': 134214571Sdim preen++; 135214571Sdim /*FALLTHROUGH*/ 136214571Sdim 137214571Sdim case 'C': 138214571Sdim ckclean++; 139214571Sdim break; 140214571Sdim 141214571Sdim case 'r': 142214571Sdim inoopt++; 143214571Sdim break; 144214571Sdim 145214571Sdim case 'y': 146214571Sdim yflag++; 147214571Sdim nflag = 0; 148214571Sdim break; 149214571Sdim 150214571Sdim default: 151214571Sdim usage(); 152214571Sdim } 153214571Sdim } 154214571Sdim argc -= optind; 155214571Sdim argv += optind; 156214571Sdim 157214571Sdim if (!argc) 158214571Sdim usage(); 159214571Sdim 160214571Sdim if (signal(SIGINT, SIG_IGN) != SIG_IGN) 161214571Sdim (void)signal(SIGINT, catch); 162214571Sdim if (ckclean) 163214571Sdim (void)signal(SIGQUIT, catchquit); 164214571Sdim signal(SIGINFO, infohandler); 165214571Sdim if (bkgrdflag) { 166214571Sdim signal(SIGALRM, alarmhandler); 167214571Sdim itimerval.it_interval.tv_sec = 5; 168214571Sdim itimerval.it_interval.tv_usec = 0; 169214571Sdim itimerval.it_value.tv_sec = 5; 170214571Sdim itimerval.it_value.tv_usec = 0; 171214571Sdim setitimer(ITIMER_REAL, &itimerval, NULL); 172214571Sdim } 173214571Sdim /* 174214571Sdim * Push up our allowed memory limit so we can cope 175214571Sdim * with huge file systems. 176214571Sdim */ 177214571Sdim if (getrlimit(RLIMIT_DATA, &rlimit) == 0) { 178214571Sdim rlimit.rlim_cur = rlimit.rlim_max; 179214571Sdim (void)setrlimit(RLIMIT_DATA, &rlimit); 180214571Sdim } 181214571Sdim while (argc-- > 0) 182214571Sdim (void)checkfilesys(*argv++); 183214571Sdim 184214571Sdim if (returntosingle) 185214571Sdim ret = 2; 186214571Sdim exit(ret); 187214571Sdim} 188214571Sdim 189214571Sdimstatic int 190214571Sdimargtoi(int flag, const char *req, const char *str, int base) 191214571Sdim{ 192214571Sdim char *cp; 193214571Sdim int ret; 194214571Sdim 195214571Sdim ret = (int)strtol(str, &cp, base); 196214571Sdim if (cp == str || *cp) 197214571Sdim errx(EEXIT, "-%c flag requires a %s", flag, req); 198214571Sdim return (ret); 199214571Sdim} 200214571Sdim 201214571Sdim/* 202214571Sdim * Check the specified file system. 203214571Sdim */ 204214571Sdim/* ARGSUSED */ 205214571Sdimstatic int 206214571Sdimcheckfilesys(char *filesys) 207214571Sdim{ 208214571Sdim ufs2_daddr_t n_ffree, n_bfree; 209214571Sdim struct dups *dp; 210214571Sdim struct statfs *mntp; 211214571Sdim struct stat snapdir; 212214571Sdim struct group *grp; 213214571Sdim ufs2_daddr_t blks; 214214571Sdim struct iovec *iov; 215214571Sdim char errmsg[255]; 216214571Sdim int iovlen; 217214571Sdim int cylno; 218214571Sdim ino_t files; 219214571Sdim size_t size; 220214571Sdim 221214571Sdim iov = NULL; 222214571Sdim iovlen = 0; 223214571Sdim errmsg[0] = '\0'; 224214571Sdim 225214571Sdim cdevname = filesys; 226214571Sdim if (debug && ckclean) 227214571Sdim pwarn("starting\n"); 228214571Sdim /* 229214571Sdim * Make best effort to get the disk name. Check first to see 230214571Sdim * if it is listed among the mounted file systems. Failing that 231214571Sdim * check to see if it is listed in /etc/fstab. 232214571Sdim */ 233214571Sdim mntp = getmntpt(filesys); 234214571Sdim if (mntp != NULL) 235214571Sdim filesys = mntp->f_mntfromname; 236214571Sdim else 237214571Sdim filesys = blockcheck(filesys); 238214571Sdim /* 239214571Sdim * If -F flag specified, check to see whether a background check 240214571Sdim * is possible and needed. If possible and needed, exit with 241214571Sdim * status zero. Otherwise exit with status non-zero. A non-zero 242214571Sdim * exit status will cause a foreground check to be run. 243214571Sdim */ 244214571Sdim sblock_init(); 245214571Sdim if (bkgrdcheck) { 246214571Sdim if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0) 247214571Sdim exit(3); /* Cannot read superblock */ 248214571Sdim close(fsreadfd); 249214571Sdim /* Earlier background failed or journaled */ 250214571Sdim if (sblock.fs_flags & (FS_NEEDSFSCK | FS_SUJ)) 251214571Sdim exit(4); 252214571Sdim if ((sblock.fs_flags & FS_DOSOFTDEP) == 0) 253214571Sdim exit(5); /* Not running soft updates */ 254214571Sdim size = MIBSIZE; 255214571Sdim if (sysctlnametomib("vfs.ffs.adjrefcnt", adjrefcnt, &size) < 0) 256214571Sdim exit(6); /* Lacks kernel support */ 257214571Sdim if ((mntp == NULL && sblock.fs_clean == 1) || 258214571Sdim (mntp != NULL && (sblock.fs_flags & FS_UNCLEAN) == 0)) 259214571Sdim exit(7); /* Filesystem clean, report it now */ 260214571Sdim exit(0); 261214571Sdim } 262214571Sdim if (ckclean && skipclean) { 263214571Sdim /* 264214571Sdim * If file system is gjournaled, check it here. 265214571Sdim */ 266214571Sdim if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0) 267214571Sdim exit(3); /* Cannot read superblock */ 268214571Sdim close(fsreadfd); 269214571Sdim if ((sblock.fs_flags & FS_GJOURNAL) != 0) { 270214571Sdim //printf("GJournaled file system detected on %s.\n", 271214571Sdim // filesys); 272214571Sdim if (sblock.fs_clean == 1) { 273214571Sdim pwarn("FILE SYSTEM CLEAN; SKIPPING CHECKS\n"); 274214571Sdim exit(0); 275214571Sdim } 276214571Sdim if ((sblock.fs_flags & (FS_UNCLEAN | FS_NEEDSFSCK)) == 0) { 277214571Sdim gjournal_check(filesys); 278214571Sdim if (chkdoreload(mntp) == 0) 279214571Sdim exit(0); 280214571Sdim exit(4); 281214571Sdim } else { 282214571Sdim pfatal("UNEXPECTED INCONSISTENCY, %s\n", 283214571Sdim "CANNOT RUN FAST FSCK\n"); 284214571Sdim } 285214571Sdim } 286214571Sdim } 287214571Sdim /* 288214571Sdim * If we are to do a background check: 289214571Sdim * Get the mount point information of the file system 290214571Sdim * create snapshot file 291214571Sdim * return created snapshot file 292214571Sdim * if not found, clear bkgrdflag and proceed with normal fsck 293214571Sdim */ 294214571Sdim if (bkgrdflag) { 295214571Sdim if (mntp == NULL) { 296214571Sdim bkgrdflag = 0; 297214571Sdim pfatal("NOT MOUNTED, CANNOT RUN IN BACKGROUND\n"); 298214571Sdim } else if ((mntp->f_flags & MNT_SOFTDEP) == 0) { 299214571Sdim bkgrdflag = 0; 300214571Sdim pfatal("NOT USING SOFT UPDATES, %s\n", 301214571Sdim "CANNOT RUN IN BACKGROUND"); 302214571Sdim } else if ((mntp->f_flags & MNT_RDONLY) != 0) { 303214571Sdim bkgrdflag = 0; 304214571Sdim pfatal("MOUNTED READ-ONLY, CANNOT RUN IN BACKGROUND\n"); 305214571Sdim } else if ((fsreadfd = open(filesys, O_RDONLY)) >= 0) { 306214571Sdim if (readsb(0) != 0) { 307214571Sdim if (sblock.fs_flags & (FS_NEEDSFSCK | FS_SUJ)) { 308214571Sdim bkgrdflag = 0; 309214571Sdim pfatal("UNEXPECTED INCONSISTENCY, %s\n", 310214571Sdim "CANNOT RUN IN BACKGROUND\n"); 311214571Sdim } 312214571Sdim if ((sblock.fs_flags & FS_UNCLEAN) == 0 && 313214571Sdim skipclean && ckclean) { 314214571Sdim /* 315214571Sdim * file system is clean; 316214571Sdim * skip snapshot and report it clean 317214571Sdim */ 318214571Sdim pwarn("FILE SYSTEM CLEAN; %s\n", 319214571Sdim "SKIPPING CHECKS"); 320214571Sdim goto clean; 321214571Sdim } 322214571Sdim } 323214571Sdim close(fsreadfd); 324214571Sdim } 325214571Sdim if (bkgrdflag) { 326214571Sdim snprintf(snapname, sizeof snapname, "%s/.snap", 327214571Sdim mntp->f_mntonname); 328214571Sdim if (stat(snapname, &snapdir) < 0) { 329214571Sdim if (errno != ENOENT) { 330214571Sdim bkgrdflag = 0; 331214571Sdim pfatal("CANNOT FIND %s %s: %s, %s\n", 332214571Sdim "SNAPSHOT DIRECTORY", 333214571Sdim snapname, strerror(errno), 334214571Sdim "CANNOT RUN IN BACKGROUND"); 335214571Sdim } else if ((grp = getgrnam("operator")) == 0 || 336214571Sdim mkdir(snapname, 0770) < 0 || 337214571Sdim chown(snapname, -1, grp->gr_gid) < 0 || 338214571Sdim chmod(snapname, 0770) < 0) { 339214571Sdim bkgrdflag = 0; 340214571Sdim pfatal("CANNOT CREATE %s %s: %s, %s\n", 341214571Sdim "SNAPSHOT DIRECTORY", 342214571Sdim snapname, strerror(errno), 343214571Sdim "CANNOT RUN IN BACKGROUND"); 344214571Sdim } 345214571Sdim } else if (!S_ISDIR(snapdir.st_mode)) { 346214571Sdim bkgrdflag = 0; 347214571Sdim pfatal("%s IS NOT A DIRECTORY, %s\n", snapname, 348214571Sdim "CANNOT RUN IN BACKGROUND"); 349214571Sdim } 350214571Sdim } 351214571Sdim if (bkgrdflag) { 352214571Sdim snprintf(snapname, sizeof snapname, 353214571Sdim "%s/.snap/fsck_snapshot", mntp->f_mntonname); 354214571Sdim build_iovec(&iov, &iovlen, "fstype", "ffs", 4); 355214571Sdim build_iovec(&iov, &iovlen, "from", snapname, 356214571Sdim (size_t)-1); 357214571Sdim build_iovec(&iov, &iovlen, "fspath", mntp->f_mntonname, 358214571Sdim (size_t)-1); 359214571Sdim build_iovec(&iov, &iovlen, "errmsg", errmsg, 360214571Sdim sizeof(errmsg)); 361214571Sdim build_iovec(&iov, &iovlen, "update", NULL, 0); 362214571Sdim build_iovec(&iov, &iovlen, "snapshot", NULL, 0); 363214571Sdim 364214571Sdim while (nmount(iov, iovlen, mntp->f_flags) < 0) { 365214571Sdim if (errno == EEXIST && unlink(snapname) == 0) 366214571Sdim continue; 367214571Sdim bkgrdflag = 0; 368214571Sdim pfatal("CANNOT CREATE SNAPSHOT %s: %s %s\n", 369214571Sdim snapname, strerror(errno), errmsg); 370214571Sdim break; 371214571Sdim } 372214571Sdim if (bkgrdflag != 0) 373214571Sdim filesys = snapname; 374214571Sdim } 375214571Sdim } 376214571Sdim 377214571Sdim switch (setup(filesys)) { 378214571Sdim case 0: 379214571Sdim if (preen) 380214571Sdim pfatal("CAN'T CHECK FILE SYSTEM."); 381214571Sdim return (0); 382214571Sdim case -1: 383214571Sdim clean: 384214571Sdim pwarn("clean, %ld free ", (long)(sblock.fs_cstotal.cs_nffree + 385214571Sdim sblock.fs_frag * sblock.fs_cstotal.cs_nbfree)); 386214571Sdim printf("(%lld frags, %lld blocks, %.1f%% fragmentation)\n", 387214571Sdim (long long)sblock.fs_cstotal.cs_nffree, 388214571Sdim (long long)sblock.fs_cstotal.cs_nbfree, 389214571Sdim sblock.fs_cstotal.cs_nffree * 100.0 / sblock.fs_dsize); 390214571Sdim return (0); 391214571Sdim } 392214571Sdim /* 393214571Sdim * Determine if we can and should do journal recovery. 394214571Sdim */ 395214571Sdim if ((sblock.fs_flags & FS_SUJ) == FS_SUJ) { 396214571Sdim if ((sblock.fs_flags & FS_NEEDSFSCK) != FS_NEEDSFSCK && skipclean) { 397214571Sdim if (preen || reply("USE JOURNAL")) { 398214571Sdim if (suj_check(filesys) == 0) { 399214571Sdim printf("\n***** FILE SYSTEM MARKED CLEAN *****\n"); 400214571Sdim if (chkdoreload(mntp) == 0) 401214571Sdim exit(0); 402214571Sdim exit(4); 403214571Sdim } 404214571Sdim } 405214571Sdim printf("** Skipping journal, falling through to full fsck\n\n"); 406214571Sdim } 407214571Sdim /* 408214571Sdim * Write the superblock so we don't try to recover the 409214571Sdim * journal on another pass. 410214571Sdim */ 411214571Sdim sblock.fs_mtime = time(NULL); 412214571Sdim sbdirty(); 413214571Sdim } 414214571Sdim 415214571Sdim /* 416214571Sdim * Cleared if any questions answered no. Used to decide if 417214571Sdim * the superblock should be marked clean. 418214571Sdim */ 419214571Sdim resolved = 1; 420214571Sdim /* 421214571Sdim * 1: scan inodes tallying blocks used 422214571Sdim */ 423214571Sdim if (preen == 0) { 424214571Sdim printf("** Last Mounted on %s\n", sblock.fs_fsmnt); 425214571Sdim if (mntp != NULL && mntp->f_flags & MNT_ROOTFS) 426214571Sdim printf("** Root file system\n"); 427214571Sdim printf("** Phase 1 - Check Blocks and Sizes\n"); 428214571Sdim } 429214571Sdim pass1(); 430214571Sdim 431214571Sdim /* 432214571Sdim * 1b: locate first references to duplicates, if any 433214571Sdim */ 434214571Sdim if (duplist) { 435214571Sdim if (preen || usedsoftdep) 436214571Sdim pfatal("INTERNAL ERROR: dups with %s%s%s", 437214571Sdim preen ? "-p" : "", 438214571Sdim (preen && usedsoftdep) ? " and " : "", 439214571Sdim usedsoftdep ? "softupdates" : ""); 440214571Sdim printf("** Phase 1b - Rescan For More DUPS\n"); 441214571Sdim pass1b(); 442214571Sdim } 443214571Sdim 444214571Sdim /* 445214571Sdim * 2: traverse directories from root to mark all connected directories 446214571Sdim */ 447214571Sdim if (preen == 0) 448214571Sdim printf("** Phase 2 - Check Pathnames\n"); 449214571Sdim pass2(); 450214571Sdim 451214571Sdim /* 452214571Sdim * 3: scan inodes looking for disconnected directories 453214571Sdim */ 454214571Sdim if (preen == 0) 455214571Sdim printf("** Phase 3 - Check Connectivity\n"); 456214571Sdim pass3(); 457214571Sdim 458214571Sdim /* 459214571Sdim * 4: scan inodes looking for disconnected files; check reference counts 460214571Sdim */ 461214571Sdim if (preen == 0) 462214571Sdim printf("** Phase 4 - Check Reference Counts\n"); 463214571Sdim pass4(); 464214571Sdim 465214571Sdim /* 466214571Sdim * 5: check and repair resource counts in cylinder groups 467214571Sdim */ 468214571Sdim if (preen == 0) 469214571Sdim printf("** Phase 5 - Check Cyl groups\n"); 470214571Sdim pass5(); 471214571Sdim 472214571Sdim /* 473214571Sdim * print out summary statistics 474214571Sdim */ 475214571Sdim n_ffree = sblock.fs_cstotal.cs_nffree; 476214571Sdim n_bfree = sblock.fs_cstotal.cs_nbfree; 477214571Sdim files = maxino - ROOTINO - sblock.fs_cstotal.cs_nifree - n_files; 478214571Sdim blks = n_blks + 479214571Sdim sblock.fs_ncg * (cgdmin(&sblock, 0) - cgsblock(&sblock, 0)); 480214571Sdim blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0); 481214571Sdim blks += howmany(sblock.fs_cssize, sblock.fs_fsize); 482214571Sdim blks = maxfsblock - (n_ffree + sblock.fs_frag * n_bfree) - blks; 483214571Sdim if (bkgrdflag && (files > 0 || blks > 0)) { 484214571Sdim countdirs = sblock.fs_cstotal.cs_ndir - countdirs; 485214571Sdim pwarn("Reclaimed: %ld directories, %ld files, %lld fragments\n", 486214571Sdim countdirs, (long)files - countdirs, (long long)blks); 487214571Sdim } 488214571Sdim pwarn("%ld files, %jd used, %ju free ", 489214571Sdim (long)n_files, (intmax_t)n_blks, 490214571Sdim (uintmax_t)n_ffree + sblock.fs_frag * n_bfree); 491214571Sdim printf("(%ju frags, %ju blocks, %.1f%% fragmentation)\n", 492214571Sdim (uintmax_t)n_ffree, (uintmax_t)n_bfree, 493214571Sdim n_ffree * 100.0 / sblock.fs_dsize); 494214571Sdim if (debug) { 495214571Sdim if (files < 0) 496214571Sdim printf("%d inodes missing\n", -files); 497214571Sdim if (blks < 0) 498214571Sdim printf("%lld blocks missing\n", -(long long)blks); 499214571Sdim if (duplist != NULL) { 500214571Sdim printf("The following duplicate blocks remain:"); 501214571Sdim for (dp = duplist; dp; dp = dp->next) 502214571Sdim printf(" %lld,", (long long)dp->dup); 503214571Sdim printf("\n"); 504214571Sdim } 505214571Sdim } 506214571Sdim duplist = (struct dups *)0; 507214571Sdim muldup = (struct dups *)0; 508214571Sdim inocleanup(); 509214571Sdim if (fsmodified) { 510214571Sdim sblock.fs_time = time(NULL); 511214571Sdim sbdirty(); 512214571Sdim } 513214571Sdim if (cvtlevel && sblk.b_dirty) { 514214571Sdim /* 515214571Sdim * Write out the duplicate super blocks 516214571Sdim */ 517214571Sdim for (cylno = 0; cylno < sblock.fs_ncg; cylno++) 518214571Sdim blwrite(fswritefd, (char *)&sblock, 519214571Sdim fsbtodb(&sblock, cgsblock(&sblock, cylno)), 520214571Sdim SBLOCKSIZE); 521214571Sdim } 522214571Sdim if (rerun) 523214571Sdim resolved = 0; 524214571Sdim 525214571Sdim /* 526214571Sdim * Check to see if the file system is mounted read-write. 527214571Sdim */ 528214571Sdim if (bkgrdflag == 0 && mntp != NULL && (mntp->f_flags & MNT_RDONLY) == 0) 529214571Sdim resolved = 0; 530214571Sdim ckfini(resolved); 531214571Sdim 532214571Sdim for (cylno = 0; cylno < sblock.fs_ncg; cylno++) 533214571Sdim if (inostathead[cylno].il_stat != NULL) 534214571Sdim free((char *)inostathead[cylno].il_stat); 535214571Sdim free((char *)inostathead); 536214571Sdim inostathead = NULL; 537214571Sdim if (fsmodified && !preen) 538214571Sdim printf("\n***** FILE SYSTEM WAS MODIFIED *****\n"); 539214571Sdim if (rerun) 540214571Sdim printf("\n***** PLEASE RERUN FSCK *****\n"); 541214571Sdim if (chkdoreload(mntp) != 0) { 542214571Sdim if (!fsmodified) 543214571Sdim return (0); 544214571Sdim if (!preen) 545214571Sdim printf("\n***** REBOOT NOW *****\n"); 546214571Sdim sync(); 547214571Sdim return (4); 548214571Sdim } 549214571Sdim return (0); 550214571Sdim} 551214571Sdim 552214571Sdimstatic int 553214571Sdimchkdoreload(struct statfs *mntp) 554214571Sdim{ 555214571Sdim struct iovec *iov; 556214571Sdim int iovlen; 557214571Sdim char errmsg[255]; 558214571Sdim 559214571Sdim if (mntp == NULL) 560214571Sdim return (0); 561214571Sdim 562214571Sdim iov = NULL; 563214571Sdim iovlen = 0; 564214571Sdim errmsg[0] = '\0'; 565214571Sdim /* 566214571Sdim * We modified a mounted file system. Do a mount update on 567214571Sdim * it unless it is read-write, so we can continue using it 568214571Sdim * as safely as possible. 569214571Sdim */ 570214571Sdim if (mntp->f_flags & MNT_RDONLY) { 571214571Sdim build_iovec(&iov, &iovlen, "fstype", "ffs", 4); 572214571Sdim build_iovec(&iov, &iovlen, "from", mntp->f_mntfromname, 573214571Sdim (size_t)-1); 574214571Sdim build_iovec(&iov, &iovlen, "fspath", mntp->f_mntonname, 575214571Sdim (size_t)-1); 576214571Sdim build_iovec(&iov, &iovlen, "errmsg", errmsg, 577214571Sdim sizeof(errmsg)); 578214571Sdim build_iovec(&iov, &iovlen, "update", NULL, 0); 579214571Sdim build_iovec(&iov, &iovlen, "reload", NULL, 0); 580214571Sdim /* 581214571Sdim * XX: We need the following line until we clean up 582214571Sdim * nmount parsing of root mounts and NFS root mounts. 583214571Sdim */ 584214571Sdim build_iovec(&iov, &iovlen, "ro", NULL, 0); 585214571Sdim if (nmount(iov, iovlen, mntp->f_flags) == 0) { 586214571Sdim return (0); 587214571Sdim } 588214571Sdim pwarn("mount reload of '%s' failed: %s %s\n\n", 589214571Sdim mntp->f_mntonname, strerror(errno), errmsg); 590214571Sdim return (1); 591214571Sdim } 592214571Sdim return (0); 593214571Sdim} 594214571Sdim 595214571Sdim/* 596214571Sdim * Get the mount point information for name. 597214571Sdim */ 598214571Sdimstatic struct statfs * 599214571Sdimgetmntpt(const char *name) 600214571Sdim{ 601214571Sdim struct stat devstat, mntdevstat; 602214571Sdim char device[sizeof(_PATH_DEV) - 1 + MNAMELEN]; 603214571Sdim char *ddevname; 604214571Sdim struct statfs *mntbuf, *statfsp; 605214571Sdim int i, mntsize, isdev; 606214571Sdim 607214571Sdim if (stat(name, &devstat) != 0) 608214571Sdim return (NULL); 609214571Sdim if (S_ISCHR(devstat.st_mode) || S_ISBLK(devstat.st_mode)) 610214571Sdim isdev = 1; 611214571Sdim else 612214571Sdim isdev = 0; 613214571Sdim mntsize = getmntinfo(&mntbuf, MNT_NOWAIT); 614214571Sdim for (i = 0; i < mntsize; i++) { 615214571Sdim statfsp = &mntbuf[i]; 616214571Sdim ddevname = statfsp->f_mntfromname; 617214571Sdim if (*ddevname != '/') { 618214571Sdim strcpy(device, _PATH_DEV); 619214571Sdim strcat(device, ddevname); 620214571Sdim strcpy(statfsp->f_mntfromname, device); 621214571Sdim } 622214571Sdim if (isdev == 0) { 623214571Sdim if (strcmp(name, statfsp->f_mntonname)) 624214571Sdim continue; 625214571Sdim return (statfsp); 626214571Sdim } 627214571Sdim if (stat(ddevname, &mntdevstat) == 0 && 628214571Sdim mntdevstat.st_rdev == devstat.st_rdev) 629214571Sdim return (statfsp); 630214571Sdim } 631214571Sdim statfsp = NULL; 632214571Sdim return (statfsp); 633214571Sdim} 634214571Sdim 635214571Sdimstatic void 636214571Sdimusage(void) 637214571Sdim{ 638214571Sdim (void) fprintf(stderr, 639214571Sdim "usage: %s [-BEFprfny] [-b block] [-c level] [-m mode] " 640214571Sdim "filesystem ...\n", 641214571Sdim getprogname()); 642214571Sdim exit(1); 643214571Sdim} 644214571Sdim