493 lines
14 KiB
C
493 lines
14 KiB
C
/* $OpenBSD: dumpfs.c,v 1.39 2024/05/09 08:35:40 florian Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 2002 Networks Associates Technology, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This software was developed for the FreeBSD Project by Marshall
|
|
* Kirk McKusick and Network Associates Laboratories, the Security
|
|
* Research Division of Network Associates, Inc. under DARPA/SPAWAR
|
|
* contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS
|
|
* research program.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <sys/param.h> /* DEV_BSIZE MAXBSIZE isset */
|
|
#include <sys/time.h>
|
|
|
|
#include <ufs/ufs/dinode.h>
|
|
#include <ufs/ffs/fs.h>
|
|
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <fstab.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <util.h>
|
|
|
|
#define MINIMUM(a, b) (((a) < (b)) ? (a) : (b))
|
|
|
|
union {
|
|
struct fs fs;
|
|
char pad[MAXBSIZE];
|
|
} fsun;
|
|
#define afs fsun.fs
|
|
|
|
union {
|
|
struct cg cg;
|
|
char pad[MAXBSIZE];
|
|
} cgun;
|
|
#define acg cgun.cg
|
|
|
|
int dumpfs(int, const char *);
|
|
int dumpcg(const char *, int, u_int);
|
|
int marshal(const char *);
|
|
int open_disk(const char *);
|
|
void pbits(void *, int);
|
|
__dead void usage(void);
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
struct fstab *fs;
|
|
const char *name;
|
|
int ch, domarshal, eval, fd;
|
|
|
|
domarshal = eval = 0;
|
|
|
|
while ((ch = getopt(argc, argv, "m")) != -1) {
|
|
switch (ch) {
|
|
case 'm':
|
|
domarshal = 1;
|
|
break;
|
|
default:
|
|
usage();
|
|
}
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
if (argc < 1)
|
|
usage();
|
|
|
|
if (pledge("stdio rpath disklabel", NULL) == -1)
|
|
err(1, "pledge");
|
|
|
|
for (; *argv != NULL; argv++) {
|
|
if ((fs = getfsfile(*argv)) != NULL)
|
|
name = fs->fs_spec;
|
|
else
|
|
name = *argv;
|
|
if ((fd = open_disk(name)) == -1) {
|
|
eval |= 1;
|
|
continue;
|
|
}
|
|
if (domarshal)
|
|
eval |= marshal(name);
|
|
else
|
|
eval |= dumpfs(fd, name);
|
|
close(fd);
|
|
}
|
|
exit(eval);
|
|
}
|
|
|
|
int
|
|
open_disk(const char *name)
|
|
{
|
|
int fd, i, sbtry[] = SBLOCKSEARCH;
|
|
ssize_t n;
|
|
|
|
/* XXX - should retry w/raw device on failure */
|
|
if ((fd = opendev(name, O_RDONLY, 0, NULL)) == -1) {
|
|
warn("%s", name);
|
|
return(-1);
|
|
}
|
|
|
|
/* Read superblock, could be UFS1 or UFS2. */
|
|
for (i = 0; sbtry[i] != -1; i++) {
|
|
n = pread(fd, &afs, SBLOCKSIZE, (off_t)sbtry[i]);
|
|
if (n == SBLOCKSIZE && (afs.fs_magic == FS_UFS1_MAGIC ||
|
|
(afs.fs_magic == FS_UFS2_MAGIC &&
|
|
afs.fs_sblockloc == sbtry[i])) &&
|
|
!(afs.fs_magic == FS_UFS1_MAGIC &&
|
|
sbtry[i] == SBLOCK_UFS2) &&
|
|
afs.fs_bsize <= MAXBSIZE &&
|
|
afs.fs_bsize >= sizeof(struct fs))
|
|
break;
|
|
}
|
|
if (sbtry[i] == -1) {
|
|
warnx("cannot find filesystem superblock");
|
|
close(fd);
|
|
return (-1);
|
|
}
|
|
|
|
return (fd);
|
|
}
|
|
|
|
int
|
|
dumpfs(int fd, const char *name)
|
|
{
|
|
time_t fstime;
|
|
int64_t fssize;
|
|
int32_t fsflags;
|
|
size_t size;
|
|
off_t off;
|
|
int i, j;
|
|
u_int cg;
|
|
char *ct;
|
|
|
|
switch (afs.fs_magic) {
|
|
case FS_UFS2_MAGIC:
|
|
fssize = afs.fs_size;
|
|
fstime = afs.fs_time;
|
|
ct = ctime(&fstime);
|
|
if (ct)
|
|
printf("magic\t%x (FFS2)\ttime\t%s",
|
|
afs.fs_magic, ctime(&fstime));
|
|
else
|
|
printf("magic\t%x (FFS2)\ttime\t%lld\n",
|
|
afs.fs_magic, fstime);
|
|
printf("superblock location\t%jd\tid\t[ %x %x ]\n",
|
|
(intmax_t)afs.fs_sblockloc, afs.fs_id[0], afs.fs_id[1]);
|
|
printf("ncg\t%u\tsize\t%jd\tblocks\t%jd\n",
|
|
afs.fs_ncg, (intmax_t)fssize, (intmax_t)afs.fs_dsize);
|
|
break;
|
|
case FS_UFS1_MAGIC:
|
|
fssize = afs.fs_ffs1_size;
|
|
fstime = afs.fs_ffs1_time;
|
|
ct = ctime(&fstime);
|
|
if (ct)
|
|
printf("magic\t%x (FFS1)\ttime\t%s",
|
|
afs.fs_magic, ctime(&fstime));
|
|
else
|
|
printf("magic\t%x (FFS1)\ttime\t%lld\n",
|
|
afs.fs_magic, fstime);
|
|
printf("id\t[ %x %x ]\n", afs.fs_id[0], afs.fs_id[1]);
|
|
i = 0;
|
|
if (afs.fs_postblformat != FS_42POSTBLFMT) {
|
|
i++;
|
|
if (afs.fs_inodefmt >= FS_44INODEFMT) {
|
|
size_t max;
|
|
|
|
i++;
|
|
max = afs.fs_maxcontig;
|
|
size = afs.fs_contigsumsize;
|
|
if ((max < 2 && size == 0) ||
|
|
(max > 1 && size >= MINIMUM(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("ncg\t%u\tncyl\t%d\tsize\t%d\tblocks\t%d\n",
|
|
afs.fs_ncg, afs.fs_ncyl, afs.fs_ffs1_size, afs.fs_ffs1_dsize);
|
|
break;
|
|
default:
|
|
goto err;
|
|
}
|
|
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("minfree\t%d%%\toptim\t%s\tsymlinklen %d\n",
|
|
afs.fs_minfree, afs.fs_optim == FS_OPTSPACE ? "space" : "time",
|
|
afs.fs_maxsymlinklen);
|
|
switch (afs.fs_magic) {
|
|
case FS_UFS2_MAGIC:
|
|
printf("%s %d\tmaxbpg\t%d\tmaxcontig %d\tcontigsumsize %d\n",
|
|
"maxbsize", afs.fs_maxbsize, afs.fs_maxbpg,
|
|
afs.fs_maxcontig, afs.fs_contigsumsize);
|
|
printf("nbfree\t%jd\tndir\t%jd\tnifree\t%jd\tnffree\t%jd\n",
|
|
(intmax_t)afs.fs_cstotal.cs_nbfree,
|
|
(intmax_t)afs.fs_cstotal.cs_ndir,
|
|
(intmax_t)afs.fs_cstotal.cs_nifree,
|
|
(intmax_t)afs.fs_cstotal.cs_nffree);
|
|
printf("bpg\t%d\tfpg\t%d\tipg\t%u\n",
|
|
afs.fs_fpg / afs.fs_frag, afs.fs_fpg, afs.fs_ipg);
|
|
printf("nindir\t%d\tinopb\t%u\tmaxfilesize\t%ju\n",
|
|
afs.fs_nindir, afs.fs_inopb,
|
|
(uintmax_t)afs.fs_maxfilesize);
|
|
printf("sbsize\t%d\tcgsize\t%d\tcsaddr\t%jd\tcssize\t%d\n",
|
|
afs.fs_sbsize, afs.fs_cgsize, (intmax_t)afs.fs_csaddr,
|
|
afs.fs_cssize);
|
|
break;
|
|
case FS_UFS1_MAGIC:
|
|
printf("maxbpg\t%d\tmaxcontig %d\tcontigsumsize %d\n",
|
|
afs.fs_maxbpg, afs.fs_maxcontig, afs.fs_contigsumsize);
|
|
printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n",
|
|
afs.fs_ffs1_cstotal.cs_nbfree, afs.fs_ffs1_cstotal.cs_ndir,
|
|
afs.fs_ffs1_cstotal.cs_nifree, afs.fs_ffs1_cstotal.cs_nffree);
|
|
printf("cpg\t%d\tbpg\t%d\tfpg\t%d\tipg\t%u\n",
|
|
afs.fs_cpg, afs.fs_fpg / afs.fs_frag, afs.fs_fpg,
|
|
afs.fs_ipg);
|
|
printf("nindir\t%d\tinopb\t%u\tnspf\t%d\tmaxfilesize\t%ju\n",
|
|
afs.fs_nindir, afs.fs_inopb, afs.fs_nspf,
|
|
(uintmax_t)afs.fs_maxfilesize);
|
|
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\n",
|
|
afs.fs_ffs1_csaddr, afs.fs_cssize);
|
|
printf("rotdelay %dms\trps\t%d\tinterleave %d\n",
|
|
afs.fs_rotdelay, afs.fs_rps, afs.fs_interleave);
|
|
printf("nsect\t%d\tnpsect\t%d\tspc\t%d\n",
|
|
afs.fs_nsect, afs.fs_npsect, afs.fs_spc);
|
|
break;
|
|
default:
|
|
goto err;
|
|
}
|
|
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("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);
|
|
printf("avgfpdir %u\tavgfilesize %u\n",
|
|
afs.fs_avgfpdir, afs.fs_avgfilesize);
|
|
printf("flags\t");
|
|
if (afs.fs_magic == FS_UFS2_MAGIC ||
|
|
afs.fs_ffs1_flags & FS_FLAGS_UPDATED)
|
|
fsflags = afs.fs_flags;
|
|
else
|
|
fsflags = afs.fs_ffs1_flags;
|
|
if (fsflags == 0)
|
|
printf("none");
|
|
if (fsflags & FS_UNCLEAN)
|
|
printf("unclean ");
|
|
if (fsflags & FS_FLAGS_UPDATED)
|
|
printf("updated ");
|
|
#if 0
|
|
fsflags &= ~(FS_UNCLEAN | FS_FLAGS_UPDATED);
|
|
if (fsflags != 0)
|
|
printf("unknown flags (%#x)", fsflags);
|
|
#endif
|
|
putchar('\n');
|
|
printf("fsmnt\t%s\n", afs.fs_fsmnt);
|
|
printf("volname\t%s\tswuid\t%ju\n",
|
|
afs.fs_volname, (uintmax_t)afs.fs_swuid);
|
|
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;
|
|
off = (off_t)(fsbtodb(&afs, (afs.fs_csaddr + j *
|
|
afs.fs_frag))) * DEV_BSIZE;
|
|
if (pread(fd, (char *)afs.fs_csp + i, size, off) != size)
|
|
goto err;
|
|
}
|
|
for (cg = 0; cg < afs.fs_ncg; cg++) {
|
|
struct csum *cs = &afs.fs_cs(&afs, cg);
|
|
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 (fssize % afs.fs_fpg) {
|
|
if (afs.fs_magic == FS_UFS1_MAGIC)
|
|
printf("cylinders in last group %d\n",
|
|
howmany(afs.fs_ffs1_size % afs.fs_fpg,
|
|
afs.fs_spc / afs.fs_nspf));
|
|
printf("blocks in last group %ld\n\n",
|
|
(long)((fssize % afs.fs_fpg) / afs.fs_frag));
|
|
}
|
|
for (cg = 0; cg < afs.fs_ncg; cg++)
|
|
if (dumpcg(name, fd, cg))
|
|
goto err;
|
|
return (0);
|
|
|
|
err: warn("%s", name);
|
|
return (1);
|
|
}
|
|
|
|
int
|
|
dumpcg(const char *name, int fd, u_int c)
|
|
{
|
|
time_t cgtime;
|
|
off_t cur;
|
|
int i, j;
|
|
char *ct;
|
|
|
|
printf("\ncg %u:\n", c);
|
|
cur = (off_t)fsbtodb(&afs, cgtod(&afs, c)) * DEV_BSIZE;
|
|
if (pread(fd, &acg, afs.fs_bsize, cur) != afs.fs_bsize) {
|
|
warn("%s: error reading cg", name);
|
|
return(1);
|
|
}
|
|
switch (afs.fs_magic) {
|
|
case FS_UFS2_MAGIC:
|
|
cgtime = acg.cg_ffs2_time;
|
|
ct = ctime(&cgtime);
|
|
if (ct)
|
|
printf("magic\t%x\ttell\t%jx\ttime\t%s",
|
|
acg.cg_magic, (intmax_t)cur, ct);
|
|
else
|
|
printf("magic\t%x\ttell\t%jx\ttime\t%lld\n",
|
|
acg.cg_magic, (intmax_t)cur, cgtime);
|
|
printf("cgx\t%u\tndblk\t%u\tniblk\t%u\tinitiblk %u\n",
|
|
acg.cg_cgx, acg.cg_ndblk, acg.cg_ffs2_niblk,
|
|
acg.cg_initediblk);
|
|
break;
|
|
case FS_UFS1_MAGIC:
|
|
cgtime = acg.cg_time;
|
|
ct = ctime(&cgtime);
|
|
if (ct)
|
|
printf("magic\t%x\ttell\t%jx\ttime\t%s",
|
|
afs.fs_postblformat == FS_42POSTBLFMT ?
|
|
((struct ocg *)&acg)->cg_magic : acg.cg_magic,
|
|
(intmax_t)cur, ct);
|
|
else
|
|
printf("magic\t%x\ttell\t%jx\ttime\t%lld\n",
|
|
afs.fs_postblformat == FS_42POSTBLFMT ?
|
|
((struct ocg *)&acg)->cg_magic : acg.cg_magic,
|
|
(intmax_t)cur, cgtime);
|
|
printf("cgx\t%u\tncyl\t%d\tniblk\t%d\tndblk\t%u\n",
|
|
acg.cg_cgx, acg.cg_ncyl, acg.cg_niblk, acg.cg_ndblk);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
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%u\tirotor\t%u\tfrotor\t%u\nfrsum",
|
|
acg.cg_rotor, acg.cg_irotor, acg.cg_frotor);
|
|
for (i = 1, j = 0; i < afs.fs_frag; i++) {
|
|
printf("\t%u", 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("inodes used:\t");
|
|
pbits(cg_inosused(&acg), afs.fs_ipg);
|
|
printf("blks free:\t");
|
|
pbits(cg_blksfree(&acg), afs.fs_fpg);
|
|
#if 0
|
|
/* XXX - keep this? */
|
|
if (afs.fs_magic == FS_UFS1_MAGIC) {
|
|
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]);
|
|
printf("\n");
|
|
}
|
|
}
|
|
#endif
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
marshal(const char *name)
|
|
{
|
|
int Oflag;
|
|
|
|
printf("# newfs command for %s\n", name);
|
|
printf("newfs ");
|
|
if (afs.fs_volname[0] != '\0')
|
|
printf("-L %s ", afs.fs_volname);
|
|
|
|
Oflag = (afs.fs_magic == FS_UFS2_MAGIC) +
|
|
(afs.fs_inodefmt == FS_44INODEFMT);
|
|
printf("-O %d ", Oflag);
|
|
printf("-b %d ", afs.fs_bsize);
|
|
/* -c unimplemented */
|
|
printf("-e %d ", afs.fs_maxbpg);
|
|
printf("-f %d ", afs.fs_fsize);
|
|
printf("-g %u ", afs.fs_avgfilesize);
|
|
printf("-h %u ", afs.fs_avgfpdir);
|
|
/* -i unimplemented */
|
|
printf("-m %d ", afs.fs_minfree);
|
|
printf("-o ");
|
|
switch (afs.fs_optim) {
|
|
case FS_OPTSPACE:
|
|
printf("space ");
|
|
break;
|
|
case FS_OPTTIME:
|
|
printf("time ");
|
|
break;
|
|
default:
|
|
printf("unknown ");
|
|
break;
|
|
}
|
|
/* -S unimplemented */
|
|
printf("-s %jd ", (intmax_t)afs.fs_size * (afs.fs_fsize / DEV_BSIZE));
|
|
printf("%s ", name);
|
|
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)<max && isset(p, i+1))
|
|
i++;
|
|
if (i != j)
|
|
printf("-%d", i);
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
__dead void
|
|
usage(void)
|
|
{
|
|
(void)fprintf(stderr, "usage: dumpfs [-m] filesys | device\n");
|
|
exit(1);
|
|
}
|