mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-20 11:11:24 +00:00
c650708207
If the magic is bad, don't waste our time. Submitted by: Giles Lean Giles Lean <giles@nemeton.com.au> Obtained from: NetBSD PR bin/249
323 lines
9.6 KiB
C
323 lines
9.6 KiB
C
/*
|
|
* 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. 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.
|
|
*/
|
|
|
|
#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
|
|
static char sccsid[] = "@(#)dumpfs.c 8.2 (Berkeley) 2/2/94";
|
|
#endif /* not lint */
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/time.h>
|
|
|
|
#include <ufs/ufs/dinode.h>
|
|
#include <ufs/ffs/fs.h>
|
|
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include <errno.h>
|
|
#include <fstab.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
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 __P((char *));
|
|
int dumpcg __P((char *, int, int));
|
|
void pbits __P((void *, int));
|
|
void usage __P((void));
|
|
|
|
int
|
|
main(argc, argv)
|
|
int argc;
|
|
char *argv[];
|
|
{
|
|
register struct fstab *fs;
|
|
int ch, eval;
|
|
|
|
while ((ch = getopt(argc, argv, "")) != EOF)
|
|
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(name)
|
|
char *name;
|
|
{
|
|
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 (read(fd, &afs, SBSIZE) != SBSIZE)
|
|
goto err;
|
|
|
|
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));
|
|
printf("cylgrp\t%s\tinodes\t%s\n",
|
|
afs.fs_postblformat == FS_42POSTBLFMT ? "static" : "dynamic",
|
|
afs.fs_inodefmt < FS_44INODEFMT ? "4.2/4.3BSD" : "4.4BSD");
|
|
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\theadswitch %dus\ttrackseek %dus\trps\t%d\n",
|
|
afs.fs_rotdelay, afs.fs_headswitch, afs.fs_trkseek, 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\n",
|
|
afs.fs_nindir, afs.fs_inopb, afs.fs_nspf);
|
|
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\t%d\n",
|
|
afs.fs_cgrotor, afs.fs_fmod, afs.fs_ronly, afs.fs_clean);
|
|
if (afs.fs_cpc != 0)
|
|
printf("blocks available in each of %d rotational positions",
|
|
afs.fs_nrpos);
|
|
else
|
|
printf("(no rotational position table)\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");
|
|
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;
|
|
afs.fs_csp[j] = calloc(1, size);
|
|
if (lseek(fd,
|
|
(off_t)(fsbtodb(&afs, (afs.fs_csaddr + j * afs.fs_frag))) *
|
|
(off_t)dev_bsize, SEEK_SET) == (off_t)-1)
|
|
goto err;
|
|
if (read(fd, afs.fs_csp[j], 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);
|
|
(void)fprintf(stderr, "dumpfs: %s: %s\n", name, strerror(errno));
|
|
return (1);
|
|
};
|
|
|
|
int
|
|
dumpcg(name, fd, c)
|
|
char *name;
|
|
int fd, c;
|
|
{
|
|
off_t cur;
|
|
int i, j;
|
|
|
|
printf("\ncg %d:\n", c);
|
|
if ((cur = lseek(fd, (off_t)(fsbtodb(&afs, cgtod(&afs, c))) *
|
|
(off_t)dev_bsize, SEEK_SET)) == (off_t)-1)
|
|
return (1);
|
|
if (read(fd, &acg, afs.fs_bsize) != afs.fs_bsize) {
|
|
(void)fprintf(stderr, "dumpfs: %s: error reading cg\n", 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(vp, max)
|
|
register void *vp;
|
|
int max;
|
|
{
|
|
register int i;
|
|
register 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)<max && isset(p, i+1))
|
|
i++;
|
|
if (i != j)
|
|
printf("-%d", i);
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
void
|
|
usage()
|
|
{
|
|
(void)fprintf(stderr, "usage: dumpfs filesys | device\n");
|
|
exit(1);
|
|
}
|