/* $NetBSD: main.c,v 1.3 2000/04/14 06:03:38 simonb Exp $ */ /* * Copyright (c) 1980, 1986, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "fsck.h" #include "extern.h" #include "fsutil.h" int returntosingle; int fake_cleanseg = -1; int main __P((int, char *[])); static int argtoi __P((int, char *, char *, int)); static int checkfilesys __P((const char *, char *, long, int)); #if 0 static int docheck __P((struct fstab *)); #endif static void usage __P((void)); #ifdef DEBUG_IFILE void cat_ifile(void); #endif int main(argc, argv) int argc; char *argv[]; { int ch; int ret = 0; #ifndef DEBUG_IFILE char *optstring = "b:C:dm:npy"; #else char *optstring = "b:C:dim:npy"; #endif sync(); skipclean = 1; exitonfail = 0; while ((ch = getopt(argc, argv, optstring)) != EOF) { switch (ch) { case 'b': skipclean = 0; bflag = argtoi('b', "number", optarg, 10); printf("Alternate super block location: %d\n", bflag); break; case 'C': fake_cleanseg = atoi(optarg); break; case 'd': debug++; break; case 'e': exitonfail++; break; #ifdef DEBUG_IFILE case 'i': debug_ifile++; break; #endif case 'm': lfmode = argtoi('m', "mode", optarg, 8); if (lfmode &~ 07777) errexit("bad mode to -m: %o\n", lfmode); printf("** lost+found creation mode %o\n", lfmode); break; case 'n': nflag++; yflag = 0; break; case 'p': #if 1 /* For an LFS filesystem, "preen" means "do nothing" */ /* XXX should it instead mean "run in background"? */ exit(0); #else preen++; break; #endif case 'y': yflag++; nflag = 0; break; default: usage(); } } #ifndef NOTYET if(nflag==0) { errexit("fsck_lfs cannot write to the filesystem yet; the -n flag is required.\n"); } #endif argc -= optind; argv += optind; if (!argc) usage(); if (signal(SIGINT, SIG_IGN) != SIG_IGN) (void)signal(SIGINT, catch); if (preen) (void)signal(SIGQUIT, catchquit); while (argc-- > 0) (void)checkfilesys(blockcheck(*argv++), 0, 0L, 0); if (returntosingle) ret = 2; exit(ret); } static int argtoi(flag, req, str, base) int flag; char *req, *str; int base; { char *cp; int ret; ret = (int)strtol(str, &cp, base); if (cp == str || *cp) errexit("-%c flag requires a %s\n", flag, req); return (ret); } #if 0 /* * Determine whether a filesystem should be checked. */ static int docheck(fsp) register struct fstab *fsp; { if ((strcmp(fsp->fs_vfstype, "ufs") && strcmp(fsp->fs_vfstype, "ffs")) || (strcmp(fsp->fs_type, FSTAB_RW) && strcmp(fsp->fs_type, FSTAB_RO)) || fsp->fs_passno == 0) return (0); return (1); } #endif /* * Check the specified filesystem. */ /* ARGSUSED */ static int checkfilesys(filesys, mntpt, auxdata, child) const char *filesys; char *mntpt; long auxdata; int child; { daddr_t n_ffree=0, n_bfree=0; struct dups *dp; struct zlncnt *zlnp; if (preen && child) (void)signal(SIGQUIT, voidquit); setcdevname(filesys, preen); if (debug && preen) pwarn("starting\n"); switch (setup(filesys)) { case 0: if (preen) pfatal("CAN'T CHECK FILE SYSTEM."); case -1: return (0); } #ifdef DEBUG_IFILE if(debug_ifile==0 && preen == 0) #else if(preen == 0) #endif { printf("** Last Mounted on %s\n", sblock.lfs_fsmnt); if (hotroot()) printf("** Root file system\n"); } /* * 0: check segment checksums, inode ranges */ #ifdef DEBUG_IFILE if (debug_ifile==0 && preen == 0) { #else if (preen == 0) { #endif printf("** Phase 0 - Check Segment Summaries\n"); } pass0(); #ifdef DEBUG_IFILE if(debug_ifile) { cat_ifile(); exit(0); } #endif /* * 1: scan inodes tallying blocks used */ if (preen == 0) { printf("** Phase 1 - Check Blocks and Sizes\n"); } pass1(); #if 0 /* FFS */ /* * 1b: locate first references to duplicates, if any */ if (duplist) { if (preen) pfatal("INTERNAL ERROR: dups with -p"); printf("** Phase 1b - Rescan For More DUPS\n"); pass1b(); } #endif /* * 2: traverse directories from root to mark all connected directories */ if (preen == 0) printf("** Phase 2 - Check Pathnames\n"); pass2(); /* * 3: scan inodes looking for disconnected directories */ if (preen == 0) printf("** Phase 3 - Check Connectivity\n"); pass3(); /* * 4: scan inodes looking for disconnected files; check reference counts */ if (preen == 0) printf("** Phase 4 - Check Reference Counts\n"); pass4(); #if 0 /* FFS */ /* * 5: check and repair resource counts in cylinder groups */ if (preen == 0) printf("** Phase 5 - Check Cyl groups\n"); pass5(); #endif /* * print out summary statistics */ #if 0 /* FFS-specific */ n_ffree = sblock.lfs_cstotal.cs_nffree; n_bfree = sblock.lfs_cstotal.cs_nbfree; #endif pwarn("%d files, %d used, %d free ", n_files, n_blks, n_ffree + sblock.lfs_frag * n_bfree); #if 0 /* FFS */ printf("(%d frags, %d blocks, %d.%d%% fragmentation)\n", n_ffree, n_bfree, (n_ffree * 100) / sblock.lfs_dsize, ((n_ffree * 1000 + sblock.lfs_dsize / 2) / sblock.lfs_dsize) % 10); if (debug && (n_files -= maxino - ROOTINO - sblock.lfs_cstotal.cs_nifree)) printf("%d files missing\n", n_files); #else putchar('\n'); #endif if (debug) { #if 0 /* FFS */ n_blks += sblock.lfs_ncg * (cgdmin(&sblock, 0) - cgsblock(&sblock, 0)); n_blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0); n_blks += howmany(sblock.lfs_cssize, sblock.lfs_fsize); if (n_blks -= maxfsblock - (n_ffree + sblock.lfs_frag * n_bfree)) printf("%d blocks missing\n", n_blks); #endif if (duplist != NULL) { printf("The following duplicate blocks remain:"); for (dp = duplist; dp; dp = dp->next) printf(" %d,", dp->dup); printf("\n"); } if (zlnhead != NULL) { printf("The following zero link count inodes remain:"); for (zlnp = zlnhead; zlnp; zlnp = zlnp->next) printf(" %u,", zlnp->zlncnt); printf("\n"); } } zlnhead = (struct zlncnt *)0; duplist = (struct dups *)0; muldup = (struct dups *)0; inocleanup(); #if 0 /* no explicit dirty marker in LFS */ if (fsmodified) { (void)time(&sblock.lfs_tstamp); sbdirty(); } if (cvtlevel && sblk.b_dirty) { /* * Write out the duplicate super blocks */ for (cylno = 0; cylno < sblock.lfs_ncg; cylno++) bwrite(fswritefd, (char *)&sblock, fsbtodb(&sblock, cgsblock(&sblock, cylno)), LFS_SBPAD); } #endif ckfini(1); free(blockmap); free(statemap); free((char *)lncntp); if (!fsmodified) return (0); if (!preen) printf("\n***** FILE SYSTEM WAS MODIFIED *****\n"); if (rerun) printf("\n***** PLEASE RERUN FSCK *****\n"); if (hotroot()) { struct statfs stfs_buf; /* * We modified the root. Do a mount update on * it, unless it is read-write, so we can continue. */ if (statfs("/", &stfs_buf) == 0) { long flags = stfs_buf.f_flags; struct ufs_args args; int ret; if (flags & MNT_RDONLY) { args.fspec = 0; args.export.ex_flags = 0; args.export.ex_root = 0; flags |= MNT_UPDATE | MNT_RELOAD; ret = mount(MOUNT_LFS, "/", flags, &args); if (ret == 0) return(0); } } if (!preen) printf("\n***** REBOOT NOW *****\n"); sync(); return (4); } return (0); } static void usage() { extern char *__progname; (void) fprintf(stderr, "Usage: %s [-dnpy] [-b block] [-m mode] filesystem ...\n", __progname); exit(1); }