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NetBSD/usr.sbin/dumpfs/dumpfs.c

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/* $NetBSD: dumpfs.c,v 1.17 1998/07/27 00:52:01 mycroft 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. 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 <sys/cdefs.h>
#ifndef lint
__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 8.5 (Berkeley) 4/29/95";
#else
__RCSID("$NetBSD: dumpfs.c,v 1.17 1998/07/27 00:52:01 mycroft Exp $");
#endif
#endif /* not lint */
#include <sys/param.h>
#include <sys/time.h>
#include <ufs/ufs/dinode.h>
#include <ufs/ufs/ufs_bswap.h>
#include <ufs/ffs/fs.h>
#include <ufs/ffs/ffs_extern.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <fstab.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.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 needswap = 0;
int dumpfs __P((const char *));
int dumpcg __P((const char *, int, int));
int main __P((int, char **));
void pbits __P((void *, int));
void usage __P((void));
void swap_cg __P((struct cg *));
int
main(argc, argv)
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(name)
const 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)
if (afs.fs_magic == bswap32(FS_MAGIC)) {
ffs_sb_swap(&afs, &afs, 0);
needswap = 1;
} else {
warnx("%s: superblock has bad magic number, skipped", name);
(void)close(fd);
return (1);
}
#if BYTE_ORDER == LITTLE_ENDIAN
if (needswap)
#else
if (!needswap)
#endif
printf("Endian big-endian ");
else
printf("Endian little-endian ");
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\n",
i < 1 ? "static" : "dynamic", i < 2 ? "4.2/4.3BSD" : "4.4BSD", i);
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\t0x%02x\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("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");
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))) *
dev_bsize, SEEK_SET) == (off_t)-1)
goto err;
if (read(fd, afs.fs_csp[j], size) != size)
goto err;
if (needswap)
ffs_csum_swap(afs.fs_csp[j], afs.fs_csp[j], size);
}
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(name, fd, c)
const 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))) * 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);
}
if (needswap)
swap_cg(&acg);
printf("magic\t%x\ttell\t%qx\ttime\t%s",
afs.fs_postblformat == FS_42POSTBLFMT ?
((struct ocg *)&acg)->cg_magic : acg.cg_magic,
(long long)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, 0)[i]);
}
printf("\nclusters size %d and over: %d\n",
afs.fs_contigsumsize,
cg_clustersum(&acg, 0)[afs.fs_contigsumsize]);
printf("clusters free:\t");
pbits(cg_clustersfree(&acg, 0), acg.cg_nclusterblks);
} else
printf("\n");
printf("iused:\t");
pbits(cg_inosused(&acg, 0), afs.fs_ipg);
printf("free:\t");
pbits(cg_blksfree(&acg, 0), afs.fs_fpg);
printf("b:\n");
for (i = 0; i < afs.fs_cpg; i++) {
if (cg_blktot(&acg, 0)[i] == 0)
continue;
printf(" c%d:\t(%d)\t", i, cg_blktot(&acg, 0)[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, 0)[j]);
}
printf("\n");
}
return (0);
};
void
pbits(vp, max)
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)<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);
}
void
swap_cg(cg)
struct cg *cg;
{
int i;
u_int32_t *n32;
u_int16_t *n16;
cg->cg_firstfield = bswap32(cg->cg_firstfield);
cg->cg_magic = bswap32(cg->cg_magic);
cg->cg_time = bswap32(cg->cg_time);
cg->cg_cgx = bswap32(cg->cg_cgx);
cg->cg_ncyl = bswap16(cg->cg_ncyl);
cg->cg_niblk = bswap16(cg->cg_niblk);
cg->cg_ndblk = bswap32(cg->cg_ndblk);
cg->cg_cs.cs_ndir = bswap32(cg->cg_cs.cs_ndir);
cg->cg_cs.cs_nbfree = bswap32(cg->cg_cs.cs_nbfree);
cg->cg_cs.cs_nifree = bswap32(cg->cg_cs.cs_nifree);
cg->cg_cs.cs_nffree = bswap32(cg->cg_cs.cs_nffree);
cg->cg_rotor = bswap32(cg->cg_rotor);
cg->cg_frotor = bswap32(cg->cg_frotor);
cg->cg_irotor = bswap32(cg->cg_irotor);
cg->cg_btotoff = bswap32(cg->cg_btotoff);
cg->cg_boff = bswap32(cg->cg_boff);
cg->cg_iusedoff = bswap32(cg->cg_iusedoff);
cg->cg_freeoff = bswap32(cg->cg_freeoff);
cg->cg_nextfreeoff = bswap32(cg->cg_nextfreeoff);
cg->cg_clustersumoff = bswap32(cg->cg_clustersumoff);
cg->cg_clusteroff = bswap32(cg->cg_clusteroff);
cg->cg_nclusterblks = bswap32(cg->cg_nclusterblks);
for (i=0; i < MAXFRAG; i++)
cg->cg_frsum[i] = bswap32(cg->cg_frsum[i]);
if (afs.fs_postblformat == FS_42POSTBLFMT) { /* old format */
struct ocg *ocg;
int j;
ocg = (struct ocg *)cg;
for(i = 0; i < 8; i++) {
ocg->cg_frsum[i] = bswap32(ocg->cg_frsum[i]);
}
for(i = 0; i < 32; i++) {
ocg->cg_btot[i] = bswap32(ocg->cg_btot[i]);
for (j = 0; j < 8; j++)
ocg->cg_b[i][j] = bswap16(ocg->cg_b[i][j]);
}
ocg->cg_magic = bswap32(ocg->cg_magic);
} else { /* new format */
if (cg->cg_magic == CG_MAGIC) {
n32 = (u_int32_t*)((u_int8_t*)cg + cg->cg_btotoff);
n16 = (u_int16_t*)((u_int8_t*)cg + cg->cg_boff);
} else {
n32 = (u_int32_t*)((u_int8_t*)cg + bswap32(cg->cg_btotoff));
n16 = (u_int16_t*)((u_int8_t*)cg + bswap32(cg->cg_boff));
}
for (i=0; i< afs.fs_cpg; i++)
n32[i] = bswap32(n32[i]);
for (i=0; i < afs.fs_cpg * afs.fs_nrpos; i++)
n16[i] = bswap16(n16[i]);
if (cg->cg_magic == CG_MAGIC) {
n32 = (u_int32_t*)((u_int8_t*)cg + cg->cg_clustersumoff);
} else {
n32 = (u_int32_t*)((u_int8_t*)cg + cg->cg_clustersumoff);
}
for (i = 0; i < afs.fs_contigsumsize + 1; i++)
n32[i] = bswap32(n32[i]);
}
}
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