/* $OpenBSD: dumpfs.c,v 1.18 2003/06/25 21:23:53 deraadt Exp $ */ /* $NetBSD: dumpfs.c,v 1.12 1997/04/26 05:41:33 lukem Exp $ */ /* * Copyright (c) 1983, 1992, 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. 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. */ #ifndef lint static char copyright[] = "@(#) Copyright (c) 1983, 1992, 1993\n\ The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #ifndef lint #if 0 static char sccsid[] = "@(#)dumpfs.c 8.2 (Berkeley) 2/2/94"; #else static char rcsid[] = "$OpenBSD: dumpfs.c,v 1.18 2003/06/25 21:23:53 deraadt Exp $"; #endif #endif /* not lint */ #include #include #include #include #include #include #include #include #include #include #include #include union { struct fs fs; char pad[MAXBSIZE]; } fsun; #define afs fsun.fs union { struct cg cg; char pad[MAXBSIZE]; } cgun; #define acg cgun.cg long dev_bsize = 1; int dumpfs(char *); int dumpcg(char *, int, int); void pbits(void *, int); void usage(void); int main(int argc, char *argv[]) { struct fstab *fs; int ch, eval; while ((ch = getopt(argc, argv, "")) != -1) switch(ch) { case '?': default: usage(); } argc -= optind; argv += optind; if (argc < 1) usage(); for (eval = 0; *argv; ++argv) if ((fs = getfsfile(*argv)) == NULL) eval |= dumpfs(*argv); else eval |= dumpfs(fs->fs_spec); exit(eval); } int dumpfs(char *name) { ssize_t n; int fd, c, i, j, k, size; if ((fd = open(name, O_RDONLY, 0)) < 0) goto err; if (lseek(fd, (off_t)SBOFF, SEEK_SET) == (off_t)-1) goto err; if ((n = read(fd, &afs, SBSIZE)) == -1) goto err; if (n != SBSIZE) { warnx("%s: non-existent or truncated superblock, skipped", name); (void)close(fd); return (1); } if (afs.fs_magic != FS_MAGIC) { warnx("%s: superblock has bad magic number, skipping.", name); (void) close(fd); return (1); } if (afs.fs_postblformat == FS_42POSTBLFMT) afs.fs_nrpos = 8; dev_bsize = afs.fs_fsize / fsbtodb(&afs, 1); printf("magic\t%x\ttime\t%s", afs.fs_magic, ctime(&afs.fs_time)); i = 0; if (afs.fs_postblformat != FS_42POSTBLFMT) { i++; if (afs.fs_inodefmt >= FS_44INODEFMT) { int max; i++; max = afs.fs_maxcontig; size = afs.fs_contigsumsize; if ((max < 2 && size == 0) || (max > 1 && size >= MIN(max, FS_MAXCONTIG))) i++; } } printf("cylgrp\t%s\tinodes\t%s\tfslevel %d%s\n", i < 1 ? "static" : "dynamic", i < 2 ? "4.2/4.3BSD" : "4.4BSD", i, (afs.fs_flags & FS_DOSOFTDEP) ? "\tsoft updates" : ""); printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n", afs.fs_cstotal.cs_nbfree, afs.fs_cstotal.cs_ndir, afs.fs_cstotal.cs_nifree, afs.fs_cstotal.cs_nffree); printf("ncg\t%d\tncyl\t%d\tsize\t%d\tblocks\t%d\n", afs.fs_ncg, afs.fs_ncyl, afs.fs_size, afs.fs_dsize); printf("bsize\t%d\tshift\t%d\tmask\t0x%08x\n", afs.fs_bsize, afs.fs_bshift, afs.fs_bmask); printf("fsize\t%d\tshift\t%d\tmask\t0x%08x\n", afs.fs_fsize, afs.fs_fshift, afs.fs_fmask); printf("frag\t%d\tshift\t%d\tfsbtodb\t%d\n", afs.fs_frag, afs.fs_fragshift, afs.fs_fsbtodb); printf("cpg\t%d\tbpg\t%d\tfpg\t%d\tipg\t%d\n", afs.fs_cpg, afs.fs_fpg / afs.fs_frag, afs.fs_fpg, afs.fs_ipg); printf("minfree\t%d%%\toptim\t%s\tmaxcontig %d\tmaxbpg\t%d\n", afs.fs_minfree, afs.fs_optim == FS_OPTSPACE ? "space" : "time", afs.fs_maxcontig, afs.fs_maxbpg); printf("rotdelay %dms\trps\t%d\n", afs.fs_rotdelay, afs.fs_rps); printf("ntrak\t%d\tnsect\t%d\tnpsect\t%d\tspc\t%d\n", afs.fs_ntrak, afs.fs_nsect, afs.fs_npsect, afs.fs_spc); printf("symlinklen %d\ttrackskew %d\tinterleave %d\tcontigsumsize %d\n", afs.fs_maxsymlinklen, afs.fs_trackskew, afs.fs_interleave, afs.fs_contigsumsize); printf("nindir\t%d\tinopb\t%d\tnspf\t%d\tmaxfilesize\t%qu\n", afs.fs_nindir, afs.fs_inopb, afs.fs_nspf, afs.fs_maxfilesize); printf("sblkno\t%d\tcblkno\t%d\tiblkno\t%d\tdblkno\t%d\n", afs.fs_sblkno, afs.fs_cblkno, afs.fs_iblkno, afs.fs_dblkno); printf("sbsize\t%d\tcgsize\t%d\tcgoffset %d\tcgmask\t0x%08x\n", afs.fs_sbsize, afs.fs_cgsize, afs.fs_cgoffset, afs.fs_cgmask); printf("csaddr\t%d\tcssize\t%d\tshift\t%d\tmask\t0x%08x\n", afs.fs_csaddr, afs.fs_cssize, afs.fs_csshift, afs.fs_csmask); printf("cgrotor\t%d\tfmod\t%d\tronly\t%d\tclean\t0x%02x\n", afs.fs_cgrotor, afs.fs_fmod, afs.fs_ronly, afs.fs_clean); printf("flags\t"); if (afs.fs_flags == 0) printf("none"); if (afs.fs_flags & FS_UNCLEAN) printf("unclean "); if (afs.fs_flags & FS_DOSOFTDEP) printf("soft-updates "); if ((afs.fs_flags & ~(FS_UNCLEAN | FS_DOSOFTDEP)) != 0) printf("unknown flags (%#x)", afs.fs_flags & ~(FS_UNCLEAN | FS_DOSOFTDEP)); printf("\n"); if (afs.fs_cpc != 0) printf("blocks available in each of %d rotational positions", afs.fs_nrpos); else printf("insufficient space to maintain rotational tables\n"); for (c = 0; c < afs.fs_cpc; c++) { printf("\ncylinder number %d:", c); for (i = 0; i < afs.fs_nrpos; i++) { if (fs_postbl(&afs, c)[i] == -1) continue; printf("\n position %d:\t", i); for (j = fs_postbl(&afs, c)[i], k = 1; ; j += fs_rotbl(&afs)[j], k++) { printf("%5d", j); if (k % 12 == 0) printf("\n\t\t"); if (fs_rotbl(&afs)[j] == 0) break; } } } printf("\ncs[].cs_(nbfree,ndir,nifree,nffree):\n\t"); afs.fs_csp = calloc(1, afs.fs_cssize); for (i = 0, j = 0; i < afs.fs_cssize; i += afs.fs_bsize, j++) { size = afs.fs_cssize - i < afs.fs_bsize ? afs.fs_cssize - i : afs.fs_bsize; if (lseek(fd, (off_t)(fsbtodb(&afs, (afs.fs_csaddr + j * afs.fs_frag))) * dev_bsize, SEEK_SET) == (off_t)-1) goto err; if (read(fd, (char *)afs.fs_csp + i, size) != size) goto err; } for (i = 0; i < afs.fs_ncg; i++) { struct csum *cs = &afs.fs_cs(&afs, i); if (i && i % 4 == 0) printf("\n\t"); printf("(%d,%d,%d,%d) ", cs->cs_nbfree, cs->cs_ndir, cs->cs_nifree, cs->cs_nffree); } printf("\n"); if (afs.fs_ncyl % afs.fs_cpg) { printf("cylinders in last group %d\n", i = afs.fs_ncyl % afs.fs_cpg); printf("blocks in last group %d\n", i * afs.fs_spc / NSPB(&afs)); } printf("\n"); for (i = 0; i < afs.fs_ncg; i++) if (dumpcg(name, fd, i)) goto err; (void)close(fd); return (0); err: if (fd != -1) (void)close(fd); warn("%s", name); return (1); } int dumpcg(char *name, int fd, int c) { off_t cur; int i, j; printf("\ncg %d:\n", c); if ((cur = lseek(fd, (off_t)(fsbtodb(&afs, cgtod(&afs, c))) * dev_bsize, SEEK_SET)) == (off_t)-1) return (1); if (read(fd, &acg, afs.fs_bsize) != afs.fs_bsize) { warnx("%s: error reading cg", name); return (1); } printf("magic\t%x\ttell\t%qx\ttime\t%s", afs.fs_postblformat == FS_42POSTBLFMT ? ((struct ocg *)&acg)->cg_magic : acg.cg_magic, cur, ctime(&acg.cg_time)); printf("cgx\t%d\tncyl\t%d\tniblk\t%d\tndblk\t%d\n", acg.cg_cgx, acg.cg_ncyl, acg.cg_niblk, acg.cg_ndblk); printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n", acg.cg_cs.cs_nbfree, acg.cg_cs.cs_ndir, acg.cg_cs.cs_nifree, acg.cg_cs.cs_nffree); printf("rotor\t%d\tirotor\t%d\tfrotor\t%d\nfrsum", acg.cg_rotor, acg.cg_irotor, acg.cg_frotor); for (i = 1, j = 0; i < afs.fs_frag; i++) { printf("\t%d", acg.cg_frsum[i]); j += i * acg.cg_frsum[i]; } printf("\nsum of frsum: %d", j); if (afs.fs_contigsumsize > 0) { for (i = 1; i < afs.fs_contigsumsize; i++) { if ((i - 1) % 8 == 0) printf("\nclusters %d-%d:", i, afs.fs_contigsumsize - 1 < i + 7 ? afs.fs_contigsumsize - 1 : i + 7); printf("\t%d", cg_clustersum(&acg)[i]); } printf("\nclusters size %d and over: %d\n", afs.fs_contigsumsize, cg_clustersum(&acg)[afs.fs_contigsumsize]); printf("clusters free:\t"); pbits(cg_clustersfree(&acg), acg.cg_nclusterblks); } else printf("\n"); printf("iused:\t"); pbits(cg_inosused(&acg), afs.fs_ipg); printf("free:\t"); pbits(cg_blksfree(&acg), afs.fs_fpg); printf("b:\n"); for (i = 0; i < afs.fs_cpg; i++) { if (cg_blktot(&acg)[i] == 0) continue; printf(" c%d:\t(%d)\t", i, cg_blktot(&acg)[i]); for (j = 0; j < afs.fs_nrpos; j++) { if (afs.fs_cpc > 0 && fs_postbl(&afs, i % afs.fs_cpc)[j] == -1) continue; printf(" %d", cg_blks(&afs, &acg, i)[j]); } printf("\n"); } return (0); } void pbits(void *vp, int max) { int i; char *p; int count, j; for (count = i = 0, p = vp; i < max; i++) if (isset(p, i)) { if (count) printf(",%s", count % 6 ? " " : "\n\t"); count++; printf("%d", i); j = i; while ((i+1)