/* * Copyright (c) 1980, 1986 The Regents of the University of California. * All rights reserved. * * Redistribution and use in source and binary forms are permitted * provided that the above copyright notice and this paragraph are * duplicated in all such forms and that any documentation, * advertising materials, and other materials related to such * distribution and use acknowledge that the software was developed * by the University of California, Berkeley. The name of the * University may not be used to endorse or promote products derived * from this software without specific prior written permission. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ #include #include RCSID ("$Header: /cvs/openafs/src/vfsck/setup.c,v 1.10.2.4 2007/10/30 15:24:10 shadow Exp $"); #include #include #define VICE #if defined(AFS_SUN_ENV) || defined(AFS_OSF_ENV) #define AFS_NEWCG_ENV #else #undef AFS_NEWCG_ENV #endif #ifdef VICE #define msgprintf vfscklogprintf extern vfscklogprintf(); #endif #define DKTYPENAMES #include #include #ifdef AFS_OSF_ENV #include #include #include #include #define _BSD #define _KERNEL #include #undef _KERNEL #undef _BSD #include #else /* AFS_OSF_ENV */ #ifdef AFS_VFSINCL_ENV #include #ifdef AFS_SUN5_ENV #include #include #include #include #define _KERNEL #include #undef _KERNEL #include #else #include #include #endif #else /* AFS_VFSINCL_ENV */ #include #ifdef AFS_HPUX_ENV #include #define LONGFILENAMES 1 #include #include #endif #include #endif /* AFS_VFSINCL_ENV */ #endif /* AFS_OSF_ENV */ #include #include #include #include #ifdef AFS_SUN5_ENV #include #include #endif #include #include "fsck.h" struct bufarea asblk; struct bufarea *pbp; #define altsblock (*asblk.b_un.b_fs) #define POWEROF2(num) (((num) & ((num) - 1)) == 0) /* * The size of a cylinder group is calculated by CGSIZE. The maximum size * is limited by the fact that cylinder groups are at most one block. * Its size is derived from the size of the maps maintained in the * cylinder group and the (struct cg) size. */ #define CGSIZE(fs) \ /* base cg */ (sizeof(struct cg) + \ /* blktot size */ (fs)->fs_cpg * sizeof(afs_int32) + \ /* blks size */ (fs)->fs_cpg * (fs)->fs_nrpos * sizeof(short) + \ /* inode map */ howmany((fs)->fs_ipg, NBBY) + \ /* block map */ howmany((fs)->fs_cpg * (fs)->fs_spc / NSPF(fs), NBBY)) char *malloc(), *calloc(); struct disklabel *getdisklabel(); setup(dev) char *dev; { dev_t rootdev; long cg, size, asked, i, j; long bmapsize; struct disklabel *lp; struct stat statb; struct fs proto; #if defined(AFS_SUN5_ENV) static char sname[MAXPATHLEN]; #endif /* reset static variables that may have been damaged by parent fork */ mlk_pbp = 0; pbp = 0; mlk_startinum = 0; #if defined(ACLS) && defined(AFS_HPUX_ENV) n_cont = 0; #endif havesb = 0; if (stat("/", &statb) < 0) errexit("Can't stat root\n"); rootdev = statb.st_dev; #if defined(AFS_SUN5_ENV) strncpy(sname, dev, sizeof(sname)); restat: if (stat(sname, &statb) < 0) { perror(sname); msgprintf("Can't stat %s\n", sname); #else if (stat(dev, &statb) < 0) { perror(dev); printf("Can't stat %s\n", dev); #endif return (0); } #ifdef AFS_SUN5_ENV if ((statb.st_mode & S_IFMT) == S_IFDIR) { FILE *fp; struct vfstab vtab; if ((fp = fopen(VFSTAB, "r")) == NULL) { pfatal("Can't open %s file\n", VFSTAB); exit(1); } while (!getvfsent(fp, &vtab)) { if (vtab.vfs_mountp && !strcmp(vtab.vfs_mountp, sname)) { strcpy(sname, vtab.vfs_special); if (rflag) { char *s = vtab.vfs_fsckdev; strcpy(sname, s); } goto restat; } } fclose(fp); } #endif if ((statb.st_mode & S_IFMT) != S_IFBLK && (statb.st_mode & S_IFMT) != S_IFCHR) { pfatal("device is not a block or character device"); if (reply("file is not a block or character device; OK") == 0) return (0); } #ifdef AFS_SUN5_ENV if (mounted(sname)) if (rflag) mountedfs++; else { printf("%s is mounted, fsck on BLOCK device ignored\n", sname); exit(33); } if (rflag) { char bname[MAXPATHLEN], *tname; strcpy(bname, sname); tname = unrawname(bname); if (stat(tname, &statb) < 0) { pfatal("Can't stat %s\n", tname); return (0); } dev = sname; } #endif hotroot = is_hotroot(dev); /* * The following code is added to improve usability of fsck. * we need to give user a warning if the device being checked is * a hotroot, a mounted file system, or a swap device. * The rules are: * 1) if nflag is set, it's pretty safe to fsck the target dev * 2) if the target device is a swap, exit * 3) if hotroot is set, and "-F" is not specified prompt the * user and wait for reply * 4) if the target is a mounted file system, and "-F" is not * specified, prompt the user and wait for reply * 5) if the "-m" is specifed, do no prompting since only a sanity * check is being done. important during booting * * Caveat: There is no way to tell the current run level, so we cannot * tell whether or not we are in single user mode. */ if (!nflag) { int mounted, swap; struct stat st_mounted; mounted = swap = 0; if (!hotroot) { mounted = is_mounted(dev, &st_mounted); #ifdef AFS_HPUX_ENV swap = is_swap(st_mounted.st_rdev); #endif } if (!fflag #ifdef AFS_HPUX_ENV && !mflag #endif ) { if (hotroot) { msgprintf("fsck: %s: root file system", dev); if (preen) msgprintf(" (CONTINUING)\n"); else { if (!freply("continue (y/n)")) return (0); } } else if (mounted) { msgprintf("fsck: %s: mounted file system", dev); if (preen) msgprintf(" (CONTINUING)\n"); else { if (!freply("continue (y/n)")) return (0); } } else if (swap) { msgprintf("fsck: %s: swap device\n", dev); if (preen) msgprintf(" (CONTINUING)\n"); else { if (!freply("continue (y/n)")) return (0); } } } } if (rootdev == statb.st_rdev) hotroot++; if ((fsreadfd = open(dev, O_RDONLY)) < 0) { perror(dev); msgprintf("Can't open %s\n", dev); return (0); } if (preen == 0) msgprintf("** %s", dev); if (nflag || (fswritefd = open(dev, O_WRONLY)) < 0) { fswritefd = -1; msgprintf(" (NO WRITE)"); #ifdef notdef if (preen) { pfatal("NO WRITE ACCESS"); } #endif } if (preen == 0) msgprintf("\n"); #if defined(AFS_HPUX101_ENV) setup_all_block_seek(); #endif #ifdef AFS_SUN5_ENV if (!preen && debug) printf(" pid %d\n", getpid()); if (debug && (hotroot || mountedfs)) { printf("** %s", sname); if (hotroot) { printf(" is root fs"); if (mountedfs) printf(" and"); } if (mountedfs) printf(" is mounted"); printf(".\n"); } #endif fsmodified = 0; lfdir = 0; initbarea(&sblk); initbarea(&asblk); #ifdef __alpha sblk.b_un.b_buf = malloc(SBSIZE + ALPHA_EXT); asblk.b_un.b_buf = malloc(SBSIZE + ALPHA_EXT); #else /* __alpha */ sblk.b_un.b_buf = malloc(SBSIZE); asblk.b_un.b_buf = malloc(SBSIZE); #endif if (sblk.b_un.b_buf == NULL || asblk.b_un.b_buf == NULL) errexit("cannot allocate space for superblock\n"); dev_bsize = secsize = DEV_BSIZE; /* * Read in the superblock, looking for alternates if necessary */ if (readsb(1) == 0) { if (bflag || preen || calcsb(dev, fsreadfd, &proto) == 0) return (0); if (reply("LOOK FOR ALTERNATE SUPERBLOCKS") == 0) return (0); for (cg = 0; cg < proto.fs_ncg; cg++) { bflag = fsbtodb(&proto, cgsblock(&proto, cg)); if (readsb(0) != 0) break; } if (cg >= proto.fs_ncg) { msgprintf("%s %s\n%s %s\n%s %s\n", "SEARCH FOR ALTERNATE SUPER-BLOCK", "FAILED. YOU MUST USE THE", "-b OPTION TO FSCK TO SPECIFY THE", "LOCATION OF AN ALTERNATE", "SUPER-BLOCK TO SUPPLY NEEDED", "INFORMATION; SEE fsck(8)."); return (0); } pwarn("USING ALTERNATE SUPERBLOCK AT %d\n", bflag); } maxfsblock = sblock.fs_size; maxino = sblock.fs_ncg * sblock.fs_ipg; /* * Check and potentially fix certain fields in the super block. */ if (sblock.fs_optim != FS_OPTTIME && sblock.fs_optim != FS_OPTSPACE) { pfatal("UNDEFINED OPTIMIZATION IN SUPERBLOCK"); if (reply("SET TO DEFAULT") == 1) { sblock.fs_optim = FS_OPTTIME; sbdirty(); } } if ((sblock.fs_minfree < 0 || sblock.fs_minfree > 99)) { pfatal("IMPOSSIBLE MINFREE=%d IN SUPERBLOCK", sblock.fs_minfree); if (reply("SET TO DEFAULT") == 1) { sblock.fs_minfree = 10; sbdirty(); } } #ifdef AFS_HPUX_ENV /* * Do we need to continue ? */ if (pclean && sblock.fs_clean == FS_CLEAN) return (-1); if (pclean && hotroot && sblock.fs_clean == FS_OK) return (-1); #endif #ifdef AFS_NEWCG_ENV # ifndef AFS_SUN59_ENV if (sblock.fs_interleave < 1) { pwarn("IMPOSSIBLE INTERLEAVE=%d IN SUPERBLOCK", sblock.fs_interleave); sblock.fs_interleave = 1; if (preen) msgprintf(" (FIXED)\n"); if (preen || reply("SET TO DEFAULT") == 1) { sbdirty(); dirty(&asblk); } } # endif /* AFS_SUN59_ENV */ #endif /* AFS_NEWCG_ENV */ #ifdef AFS_NEWCG_ENV if (sblock.fs_npsect < sblock.fs_nsect) { pwarn("IMPOSSIBLE NPSECT=%d IN SUPERBLOCK", sblock.fs_npsect); sblock.fs_npsect = sblock.fs_nsect; if (preen) msgprintf(" (FIXED)\n"); if (preen || reply("SET TO DEFAULT") == 1) { sbdirty(); dirty(&asblk); } } #endif /* AFS_NEWCG_ENV */ #ifdef AFS_NEWCG_ENV if (cvtflag) { if (sblock.fs_postblformat == FS_42POSTBLFMT) { /* * Requested to convert from old format to new format */ if (preen) pwarn("CONVERTING TO NEW FILE SYSTEM FORMAT\n"); else if (!reply("CONVERT TO NEW FILE SYSTEM FORMAT")) return (0); isconvert = 1; sblock.fs_postblformat = FS_DYNAMICPOSTBLFMT; sblock.fs_nrpos = 8; sblock.fs_postbloff = (char *)(&sblock.fs_opostbl[0][0]) - (char *)(&sblock.fs_link); sblock.fs_rotbloff = &sblock.fs_space[0] - (u_char *) (&sblock.fs_link); sblock.fs_cgsize = fragroundup(&sblock, CGSIZE(&sblock)); /* * Planning now for future expansion. */ # if (BYTE_ORDER == BIG_ENDIAN) sblock.fs_qbmask.val[0] = 0; sblock.fs_qbmask.val[1] = ~sblock.fs_bmask; sblock.fs_qfmask.val[0] = 0; sblock.fs_qfmask.val[1] = ~sblock.fs_fmask; # endif /* BIG_ENDIAN */ # if (BYTE_ORDER == LITTLE_ENDIAN) sblock.fs_qbmask.val[0] = ~sblock.fs_bmask; sblock.fs_qbmask.val[1] = 0; sblock.fs_qfmask.val[0] = ~sblock.fs_fmask; sblock.fs_qfmask.val[1] = 0; # endif /* LITTLE_ENDIAN */ #if defined(AFS_SUN_ENV) && !defined(AFS_SUN3_ENV) #ifdef AFS_SUN5_ENV sblock.fs_state = FSOKAY - sblock.fs_time; /* make mountable */ #else fs_set_state(&sblock, FSOKAY - sblock.fs_time); #endif sblock.fs_clean = FSCLEAN; #endif sbdirty(); dirty(&asblk); } else if (sblock.fs_postblformat == FS_DYNAMICPOSTBLFMT) { /* * Requested to convert from new format to old format */ if (sblock.fs_nrpos != 8 || sblock.fs_ipg > 2048 || sblock.fs_cpg > 32 || sblock.fs_cpc > 16) { msgprintf("PARAMETERS OF CURRENT FILE SYSTEM DO NOT\n\t"); msgprintf("ALLOW CONVERSION TO OLD FILE SYSTEM FORMAT\n"); errexit(""); } if (preen) pwarn("CONVERTING TO OLD FILE SYSTEM FORMAT\n"); else if (!reply("CONVERT TO OLD FILE SYSTEM FORMAT")) return (0); isconvert = 1; sblock.fs_postblformat = FS_42POSTBLFMT; sblock.fs_cgsize = fragroundup(&sblock, sizeof(struct ocg) + howmany(sblock.fs_fpg, NBBY)); #if defined(AFS_SUN_ENV) && !defined(AFS_SUN3_ENV) #ifdef AFS_SUN5_ENV sblock.fs_npsect = 0; # ifndef AFS_SUN59_ENV sblock.fs_interleave = 0; # endif sblock.fs_state = FSOKAY - sblock.fs_time; /* make mountable */ #else fs_set_state(&sblock, FSOKAY - sblock.fs_time); #endif sblock.fs_clean = FSCLEAN; #endif sbdirty(); dirty(&asblk); } else { errexit("UNKNOWN FILE SYSTEM FORMAT\n"); } } #endif /* AFS_NEWCG_ENV */ if (asblk.b_dirty) { memcpy((char *)&altsblock, (char *)&sblock, (int)sblock.fs_sbsize); flush(fswritefd, &asblk); } /* * read in the summary info. */ asked = 0; #if defined(AFS_SUN56_ENV) { caddr_t sip; sip = calloc(1, sblock.fs_cssize); sblock.fs_u.fs_csp = (struct csum *)sip; for (i = 0, j = 0; i < sblock.fs_cssize; i += sblock.fs_bsize, j++) { size = sblock.fs_cssize - i < sblock.fs_bsize ? sblock.fs_cssize - i : sblock.fs_bsize; if (bread (fsreadfd, sip, fsbtodb(&sblock, sblock.fs_csaddr + j * sblock.fs_frag), size) != 0 && !asked) { pfatal("BAD SUMMARY INFORMATION"); if (reply("CONTINUE") == 0) errexit(""); return (0); } sip += size; } } #else /* AFS_SUN56_ENV */ #if defined(AFS_HPUX110_ENV) size = fragroundup(&sblock, sblock.fs_cssize); sblock.fs_csp = (struct csum *)calloc(1, (unsigned)size); if ((bread (fsreadfd, (char *)sblock.fs_csp, fsbtodb(&sblock, sblock.fs_csaddr), size) != 0) && !asked) { pfatal("BAD SUMMARY INFORMATION"); if (reply("CONTINUE") == 0) errexit(""); asked++; } #else /* AFS_HPUX110_ENV */ #if defined(AFS_HPUX101_ENV) { j = 0; size = fragroundup(&sblock, sblock.fs_cssize); #else for (i = 0, j = 0; i < sblock.fs_cssize; i += sblock.fs_bsize, j++) { size = sblock.fs_cssize - i < sblock.fs_bsize ? sblock.fs_cssize - i : sblock.fs_bsize; #endif /* AFS_HPUX101_ENV */ sblock.fs_csp[j] = (struct csum *)calloc(1, (unsigned)size); if (bread (fsreadfd, (char *)sblock.fs_csp[j], fsbtodb(&sblock, sblock.fs_csaddr + j * sblock.fs_frag), size) != 0 && !asked) { pfatal("BAD SUMMARY INFORMATION"); if (reply("CONTINUE") == 0) errexit(""); #ifdef AFS_SUN_ENV return (0); #else asked++; #endif } } #endif /* else AFS_HPUX110_ENV */ #endif /* else AFS_SUN56_ENV */ #if defined(AFS_SUN_ENV) && !defined(AFS_SUN3_ENV) /* * if not forced, preening, not converting, and is clean; stop checking */ #ifdef AFS_SUN5_ENV if ((fflag == 0) && preen && (isconvert == 0) && (FSOKAY == (sblock.fs_state + sblock.fs_time)) && #else if (preen && (isconvert == 0) && (FSOKAY == (fs_get_state(&sblock) + sblock.fs_time)) && #endif ((sblock.fs_clean == FSCLEAN) || (sblock.fs_clean == FSSTABLE))) { iscorrupt = 0; printclean(); return (0); } #endif #ifdef AFS_OSF_ENV if (!fflag && !bflag && !nflag && !hotroot && sblock.fs_clean == FS_CLEAN && !sblk.b_dirty) { pwarn("Clean file system - skipping fsck\n"); return (FS_CLEAN); } #endif /* AFS_OSF_ENV */ /* * allocate and initialize the necessary maps */ bmapsize = roundup(howmany(maxfsblock, NBBY), sizeof(short)); blockmap = calloc((unsigned)bmapsize, sizeof(char)); if (blockmap == NULL) { msgprintf("cannot alloc %d bytes for blockmap\n", bmapsize); goto badsb; } statemap = calloc((unsigned)(maxino + 1), sizeof(char)); if (statemap == NULL) { msgprintf("cannot alloc %d bytes for statemap\n", maxino + 1); goto badsb; } lncntp = (short *)calloc((unsigned)(maxino + 1), sizeof(short)); if (lncntp == NULL) { msgprintf("cannot alloc %d bytes for lncntp\n", (maxino + 1) * sizeof(short)); goto badsb; } bufinit(); return (1); badsb: ckfini(); return (0); } /* * Read in the super block and its summary info. */ readsb(listerr) int listerr; { #ifdef AFS_NEWCG_ENV daddr_t super = bflag ? bflag : SBOFF / dev_bsize; #else /* AFS_NEWCG_ENV */ daddr_t super = bflag ? bflag : SBLOCK; #endif /* AFS_NEWCG_ENV */ if (bread(fsreadfd, (char *)&sblock, super, (long)SBSIZE) != 0) return (0); sblk.b_bno = super; sblk.b_size = SBSIZE; /* * run a few consistency checks of the super block */ #ifdef AFS_HPUX_ENV #if defined(FD_FSMAGIC) if ((sblock.fs_magic != FS_MAGIC) && (sblock.fs_magic != FS_MAGIC_LFN) && (sblock.fs_magic != FD_FSMAGIC) #if defined(AFS_HPUX101_ENV) && (sblock.fs_magic != FD_FSMAGIC_2) #endif ) #else /* not new magic number */ if ((sblock.fs_magic != FS_MAGIC) && (sblock.fs_magic != FS_MAGIC_LFN)) #endif /* new magic number */ #else if (sblock.fs_magic != FS_MAGIC) #endif { badsb(listerr, "MAGIC NUMBER WRONG"); return (0); } if (sblock.fs_ncg < 1) { badsb(listerr, "NCG OUT OF RANGE"); return (0); } if (sblock.fs_cpg < 1) { printf("fs_cpg= %d\n", sblock.fs_cpg); badsb(listerr, "CPG OUT OF RANGE"); return (0); } if (sblock.fs_ncg * sblock.fs_cpg < sblock.fs_ncyl || (sblock.fs_ncg - 1) * sblock.fs_cpg >= sblock.fs_ncyl) { badsb(listerr, "NCYL LESS THAN NCG*CPG"); return (0); } if (sblock.fs_sbsize > SBSIZE) { badsb(listerr, "SIZE PREPOSTEROUSLY LARGE"); return (0); } /* * Compute block size that the filesystem is based on, * according to fsbtodb, and adjust superblock block number * so we can tell if this is an alternate later. */ super *= dev_bsize; dev_bsize = sblock.fs_fsize / fsbtodb(&sblock, 1); sblk.b_bno = super / dev_bsize; /* * Set all possible fields that could differ, then do check * of whole super block against an alternate super block. * When an alternate super-block is specified this check is skipped. */ getblk(&asblk, cgsblock(&sblock, sblock.fs_ncg - 1), sblock.fs_sbsize); if (asblk.b_errs) return (0); if (bflag) { havesb = 1; return (1); } altsblock.fs_link = sblock.fs_link; #ifdef STRUCT_FS_HAS_FS_ROLLED altsblock.fs_rolled = sblock.fs_rolled; #else altsblock.fs_rlink = sblock.fs_rlink; #endif altsblock.fs_time = sblock.fs_time; altsblock.fs_cstotal = sblock.fs_cstotal; altsblock.fs_cgrotor = sblock.fs_cgrotor; altsblock.fs_fmod = sblock.fs_fmod; altsblock.fs_clean = sblock.fs_clean; #if defined(AFS_SUN_ENV) && !defined(AFS_SUN3_ENV) #ifdef AFS_SUN5_ENV altsblock.fs_state = sblock.fs_state; #else fs_set_state(&altsblock, fs_get_state(&sblock)); #endif #endif altsblock.fs_ronly = sblock.fs_ronly; altsblock.fs_flags = sblock.fs_flags; altsblock.fs_maxcontig = sblock.fs_maxcontig; altsblock.fs_minfree = sblock.fs_minfree; altsblock.fs_optim = sblock.fs_optim; altsblock.fs_rotdelay = sblock.fs_rotdelay; altsblock.fs_maxbpg = sblock.fs_maxbpg; #if !defined(__alpha) && !defined(AFS_SUN56_ENV) #if !defined(AFS_HPUX110_ENV) /* HPUX110 will use UpdateAlternateSuper() below */ memcpy((char *)altsblock.fs_csp, (char *)sblock.fs_csp, sizeof sblock.fs_csp); #endif /* ! AFS_HPUX110_ENV */ #endif /* ! __alpha */ #if defined(AFS_SUN56_ENV) memcpy((char *)altsblock.fs_u.fs_csp_pad, (char *)sblock.fs_u.fs_csp_pad, sizeof(sblock.fs_u.fs_csp_pad)); #endif memcpy((char *)altsblock.fs_fsmnt, (char *)sblock.fs_fsmnt, sizeof sblock.fs_fsmnt); #ifndef AFS_HPUX_ENV memcpy((char *)altsblock.fs_sparecon, (char *)sblock.fs_sparecon, sizeof sblock.fs_sparecon); #endif /* * The following should not have to be copied. */ altsblock.fs_fsbtodb = sblock.fs_fsbtodb; #ifdef AFS_NEWCG_ENV # if defined(AFS_SUN59_ENV) && defined(FS_SI_OK) /* fs_interleave replaced with fs_si and FS_SI_OK defined in */ /* ufs_fs.h version 2.63 don't need to compare either */ altsblock.fs_si = sblock.fs_si; # else altsblock.fs_interleave = sblock.fs_interleave; # endif altsblock.fs_npsect = sblock.fs_npsect; altsblock.fs_nrpos = sblock.fs_nrpos; #endif /* AFS_NEWCG_ENV */ #if defined(AFS_HPUX110_ENV) UpdateAlternateSuper(&sblock, &altsblock); #endif /* AFS_HPUX110_ENV */ if (memcmp((char *)&sblock, (char *)&altsblock, (int)sblock.fs_sbsize)) { #ifdef __alpha if (memcmp ((char *)&sblock.fs_blank[0], (char *)&altsblock.fs_blank[0], MAXCSBUFS * sizeof(int))) { memset((char *)sblock.fs_blank, 0, sizeof(sblock.fs_blank)); } else { #endif /* __alpha */ badsb(listerr, "VALUES IN SUPER BLOCK DISAGREE WITH THOSE IN FIRST ALTERNATE"); return (0); #ifdef __alpha } #endif /* __alpha */ } havesb = 1; return (1); } badsb(listerr, s) int listerr; char *s; { if (!listerr) return; if (preen) msgprintf("%s: ", devname); pfatal("BAD SUPER BLOCK: %s\n", s); #ifdef AFS_SUN5_ENV pwarn("USE AN ALTERNATE SUPER-BLOCK TO SUPPLY NEEDED INFORMATION;\n"); pwarn("eg. fsck [-F ufs] -o b=# [special ...] \n"); pfatal("where # is the alternate super block. SEE fsck_ufs(1M). \n"); #endif } /* dummy function that fails if ever called */ calcsb(dev, devfd, fs) char *dev; int devfd; register struct fs *fs; { return 0; } #include #ifdef AFS_HPUX_ENV #include #endif #include extern int errno; is_mounted(device, dev_st) char *device; struct stat *dev_st; { char blockdev[BUFSIZ]; struct ustat ust; char *dp; strcpy(blockdev, device); if (stat(blockdev, dev_st) < 0) return (0); if (is_pre_init(dev_st->st_rdev)) return (0); if ((dev_st->st_mode & S_IFMT) == S_IFCHR) { dp = strrchr(blockdev, '/'); if (strncmp(dp, "/r", 2) != 0) while (dp >= blockdev && *--dp != '/'); if (*(dp + 1) == 'r') (void)strcpy(dp + 1, dp + 2); if (stat(blockdev, dev_st) < 0) return (0); } if (ustat(dev_st->st_rdev, &ust) >= 0) { /* make sure we are not in pre_init_rc. If we are 0 should be returned in here. */ if ((is_root(dev_st->st_rdev)) && is_roroot()) return (0); return (1); } return (0); } #ifdef AFS_HPUX_ENV #define PS_BURST 1 #ifdef AFS_HPUX102_ENV #define PSTAT(P, N, I) pstat_getswap(P, sizeof(*P), (size_t)N, I) #else #define PSTAT(P, N, I) pstat(PSTAT_SWAPINFO, P, sizeof(*P), (size_t)N, I) #endif is_swap(devno) dev_t devno; { struct pst_swapinfo pst[PS_BURST]; register struct pst_swapinfo *psp = &pst[0]; int idx = 0, count, match = 0; while ((count = PSTAT(psp, PS_BURST, idx) != 0)) { idx = pst[count - 1].pss_idx + 1; if ((psp->pss_flags & SW_BLOCK) && (psp->pss_major == major(devno)) && (psp->pss_minor == minor(devno))) { match = 1; break; } } return (match); } #endif /* AFS_HPUX_ENV */ is_pre_init(rdevnum) dev_t rdevnum; { if (rdevnum == -1) return (1); return (0); } is_roroot() { #ifndef UID_NO_CHANGE struct stat stslash; if (stat("/", &stslash) < 0) return (0); if (chown("/", stslash.st_uid, stslash.st_gid) == 0) return (0); #else if (chown("/", UID_NO_CHANGE, GID_NO_CHANGE) == 0) return (0); #endif else if (errno != EROFS) { printf("fsck: chown failed: %d\n", errno); return (0); } return (1); } is_hotroot(fs_device) char *fs_device; { struct stat stslash, stblock, stchar; char blockdev[BUFSIZ]; strcpy(blockdev, fs_device); if (stat("/", &stslash) < 0) { pfatal("Can't stat root\n"); return (0); } if (stat(blockdev, &stblock) < 0) { pfatal("Can't stat %s\n", blockdev); return (0); } if (is_pre_init(stblock.st_rdev)) return (0); /* convert the device name to be block device name */ if ((stblock.st_mode & S_IFMT) == S_IFCHR) { unrawname(blockdev); if (stat(blockdev, &stblock) < 0) return (0); } if ((stblock.st_mode & S_IFMT) != S_IFBLK) return (0); if (stslash.st_dev != stblock.st_rdev) return (0); /* is root file system mounted read only? */ if (is_roroot()) return (0); return (1); } is_root(rdev_num) dev_t rdev_num; { struct stat stslash; if (stat("/", &stslash) < 0) return (0); if (stslash.st_dev != rdev_num) return (0); return (1); } getline(fp, loc, maxlen) FILE *fp; char *loc; { register n; register char *p, *lastloc; p = loc; lastloc = &p[maxlen - 1]; while ((n = getc(fp)) != '\n') { if (n == EOF) return (EOF); if (!isspace(n) && p < lastloc) *p++ = n; } *p = 0; return (p - loc); } /* * freply - prints the string, s, gets a reply fromterminal and returns * 0 - no (don't continue), and 1 - yes (continue) */ freply(s) char *s; { char line[80]; if (!isatty(0)) errexit("exiting\n"); printf("\n%s? ", s); if (getline(stdin, line, sizeof(line)) == EOF) errexit("\n"); if (line[0] == 'y' || line[0] == 'Y') return (1); return (0); } #if defined(AFS_HPUX110_ENV) /* * Refer to function compare_sblocks() in HP's fsck.c * * DESCRIPTION: * This routine will compare the primary superblock (PRIM_SBLOCK) to the * alternate superblock (ALT_SBLOCK). This routine will take into account * that certain fields in the alternate superblock could be different than * in the primary superblock. This routine checks the "static" fields * and ignores the "dynamic" fields. Superblocks with the same "static" * fields are considered equivalent. * */ UpdateAlternateSuper(prim_sblock, alt_sblock) struct fs *prim_sblock; struct fs *alt_sblock; /* will be modified */ { /* * Set all possible fields that could differ, then do check * of whole super block against an alternate super block. * * Copy dynamic fields of prim_sblock into alt_sblock */ alt_sblock->fs_time = prim_sblock->fs_time; alt_sblock->fs_minfree = prim_sblock->fs_minfree; alt_sblock->fs_rotdelay = prim_sblock->fs_rotdelay; alt_sblock->fs_maxcontig = prim_sblock->fs_maxcontig; alt_sblock->fs_maxbpg = prim_sblock->fs_maxbpg; alt_sblock->fs_mirror = prim_sblock->fs_mirror; alt_sblock->fs_cstotal = prim_sblock->fs_cstotal; alt_sblock->fs_fmod = prim_sblock->fs_fmod; alt_sblock->fs_clean = prim_sblock->fs_clean; alt_sblock->fs_ronly = prim_sblock->fs_ronly; alt_sblock->fs_flags = prim_sblock->fs_flags; alt_sblock->fs_cgrotor = prim_sblock->fs_cgrotor; #ifdef __LP64__ alt_sblock->fs_csp = prim_sblock->fs_csp; #else /* not __LP64__ */ alt_sblock->fs_csp = prim_sblock->fs_csp; alt_sblock->fs_csp_pad = prim_sblock->fs_csp_pad; #endif /* not __LP64__ */ memcpy((char *)alt_sblock->fs_fsmnt, (char *)prim_sblock->fs_fsmnt, sizeof prim_sblock->fs_fsmnt); memcpy((char *)alt_sblock->fs_fname, (char *)prim_sblock->fs_fname, sizeof prim_sblock->fs_fname); memcpy((char *)alt_sblock->fs_fpack, (char *)prim_sblock->fs_fpack, sizeof prim_sblock->fs_fpack); if (prim_sblock->fs_featurebits & FSF_LARGEUIDS) alt_sblock->fs_featurebits |= FSF_LARGEUIDS; else alt_sblock->fs_featurebits &= ~FSF_LARGEUIDS; } #endif /* AFS_HPUX110_ENV */