* Copyright (c) 1983, 1992, 1993

/* $NetBSD: dumpfs.c,v 1.69 2023/11/06 12:18:59 hannken 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.
*/

#include <sys/cdefs.h>
#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1983, 1992, 1993\
The Regents of the University of California. All rights reserved.");
#endif /* not lint */

#ifndef lint
#if 0
static char sccsid[] = "@(#)dumpfs.c 8.5 (Berkeley) 4/29/95";
#else
__RCSID("$NetBSD: dumpfs.c,v 1.69 2023/11/06 12:18:59 hannken Exp $");
#endif
#endif /* not lint */

#include <sys/param.h>
#include <sys/time.h>

#include <sys/wapbl.h>
#include <sys/wapbl_replay.h>

#include <ufs/ufs/dinode.h>
#include <ufs/ufs/ufs_bswap.h>
#include <ufs/ufs/ufs_wapbl.h>
#include <ufs/ufs/quota.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 <stddef.h>
#include <unistd.h>
#include <util.h>

static union fsun {
struct fs fs;
char pad[MAXBSIZE];
} fsun;
#define afs fsun.fs

static uint16_t opostblsave[32*8];

static union {
struct cg cg;
char pad[MAXBSIZE];
} cgun;
#define acg cgun.cg

static union {
struct wapbl_wc_header wh;
struct wapbl_wc_null wn;
char pad[MAXBSIZE];
} jbuf;
#define awh jbuf.wh
#define awn jbuf.wn

#define OPT_FLAG(ch) (1 << ((ch) & 31))
#define ISOPT(opt) (opt_flags & (opt))
#define opt_alt_super OPT_FLAG('a')
#define opt_superblock OPT_FLAG('s')
#define opt_cg_summary OPT_FLAG('m')
#define opt_cg_info OPT_FLAG('c')
#define opt_inodes OPT_FLAG('i')
#define opt_journal OPT_FLAG('j')
#define opt_verbose OPT_FLAG('v')
#define DFLT_CHECK (opt_alt_super | opt_cg_info | opt_inodes | \
opt_cg_summary | opt_superblock | opt_journal )
#define DFLT_OPTS (opt_superblock | opt_cg_summary | opt_cg_info | opt_verbose)

static long dev_bsize = 512;
static int needswap, printold, is_ufs2;
static int Fflag;

static uint opt_flags;

static int dumpfs(const char *);
static int print_superblock(struct fs *, uint16_t *, const char *, int, off_t);
static int print_cgsum(const char *, int);
static int print_cginfo(const char *, int);
static int print_inodes(const char *, int, int, int);
static int print_alt_super(const char *, int);
static int print_journal(const char *, int);
static void print_journal_header(const char *);
static off_t print_journal_entries(const char *, size_t);
static int dumpcg(const char *, int, int);
static int openpartition(const char *, int, char *, size_t);
static void pbits(int, void *, int);
__dead static void usage(void);
static void print_ufs1_inode(int, int, void *);
static void print_ufs2_inode(int, int, void *);
static void fix_superblock(struct fs *, uint16_t *);

int
main(int argc, char *argv[])
{
int ch, eval;

while ((ch = getopt(argc, argv, "acijmsvF")) != -1)
switch(ch) {
case 'a': /* alternate superblocks */
case 'c': /* cylinder group info */
case 'i': /* actual inodes */
case 'j': /* journal */
case 'm': /* cylinder group summary */
case 's': /* superblock */
case 'v': /* more verbose */
opt_flags |= OPT_FLAG(ch);
break;
case 'F': /* File (not device) */
Fflag = 1;
break;
case '?':
default:
usage();
}
argc -= optind;
argv += optind;

if ((opt_flags & DFLT_CHECK) == 0)
opt_flags |= DFLT_OPTS;

if (argc < 1)
usage();

for (eval = 0; *argv; ++argv) {
eval |= dumpfs(*argv);
}

exit(eval);
}

static int
dumpfs(const char *name)
{
static const off_t sblock_try[] = SBLOCKSEARCH;
char device[MAXPATHLEN];
int fd, i;
int rval = 1;

if (Fflag)
fd = open(name, O_RDONLY);
else {
fd = openpartition(name, O_RDONLY, device, sizeof(device));
name = device;
}
if (fd == -1)
goto err;

for (i = 0; ; i++) {
if (sblock_try[i] == -1) {
warnx("%s: could not find superblock, skipped", name);
return 1;
}
if (lseek(fd, sblock_try[i], SEEK_SET) == (off_t)-1)
continue;
if (read(fd, &afs, SBLOCKSIZE) != SBLOCKSIZE)
continue;
switch(afs.fs_magic) {
case FS_UFS2EA_MAGIC:
case FS_UFS2_MAGIC:
is_ufs2 = 1;
break;
case FS_UFS1_MAGIC:
break;
case FS_UFS2EA_MAGIC_SWAPPED:
case FS_UFS2_MAGIC_SWAPPED:
is_ufs2 = 1;
needswap = 1;
break;
case FS_UFS1_MAGIC_SWAPPED:
needswap = 1;
break;
default:
continue;
}
fix_superblock(&afs, opostblsave);
if (printold) {
if (sblock_try[i] == SBLOCK_UFS2)
/* This might be an alternate superblock */
continue;
} else {
if (sblock_try[i] != afs.fs_sblockloc)
/* This must be an alternate superblock */
continue;
}
break;
}

dev_bsize = afs.fs_fsize / FFS_FSBTODB(&afs, 1);

rval = 0;
printf("file system: %s\n", name);

if (ISOPT(opt_superblock))
rval = print_superblock(&afs, opostblsave, name, fd, sblock_try[i]);
if (rval == 0 && ISOPT(opt_cg_summary))
rval = print_cgsum(name, fd);
if (rval == 0 && ISOPT(opt_alt_super))
rval = print_alt_super(name, fd);
if (rval == 0 && ISOPT(opt_journal))
rval = print_journal(name, fd);
if (rval == 0 && ISOPT(opt_cg_info))
rval = print_cginfo(name, fd);
else if (rval == 0 && ISOPT(opt_inodes))
rval = print_inodes(name, fd, 0, afs.fs_ncg);

err:
if (fd != -1)
(void)close(fd);
if (rval)
warn("%s", name);
return rval;
}

static void
fix_superblock(struct fs *fs, uint16_t *opostbl)
{
if (needswap &&
(((int32_t)bswap32(fs->fs_old_postblformat) == FS_42POSTBLFMT) ||
(bswap32(fs->fs_old_postbloff) == offsetof(struct fs, fs_old_postbl_start)))) {
int i;
memcpy(opostbl, &fs->fs_old_postbl_start, 512);
for(i=0;i<256;i++)
opostbl[i] = bswap16(opostbl[i]);
} else if (!needswap &&
((fs->fs_old_postblformat == FS_42POSTBLFMT) ||
(fs->fs_old_postbloff == offsetof(struct fs, fs_old_postbl_start)))) {
memcpy(opostbl, &fs->fs_old_postbl_start, 512);
}

if (needswap)
ffs_sb_swap(fs, fs);

printold = (fs->fs_magic == FS_UFS1_MAGIC &&
(fs->fs_old_flags & FS_FLAGS_UPDATED) == 0);
if (printold) {
fs->fs_sblockloc = SBLOCK_UFS1;
fs->fs_flags = fs->fs_old_flags;
fs->fs_maxbsize = fs->fs_bsize;
fs->fs_time = fs->fs_old_time;
fs->fs_size = fs->fs_old_size;
fs->fs_dsize = fs->fs_old_dsize;
fs->fs_csaddr = fs->fs_old_csaddr;
fs->fs_cstotal.cs_ndir = fs->fs_old_cstotal.cs_ndir;
fs->fs_cstotal.cs_nbfree = fs->fs_old_cstotal.cs_nbfree;
fs->fs_cstotal.cs_nifree = fs->fs_old_cstotal.cs_nifree;
fs->fs_cstotal.cs_nffree = fs->fs_old_cstotal.cs_nffree;
}

if (printold && fs->fs_old_postblformat == FS_42POSTBLFMT)
fs->fs_old_nrpos = 8;
}

static int
print_superblock(struct fs *fs, uint16_t *opostbl,
const char *name, int fd, off_t sblock)
{
int i, size;
time_t t;
int32_t fsflags;

printf("format\tFFSv%d%s\n", is_ufs2+1,
fs->fs_magic == FS_UFS2EA_MAGIC ? "ea" : "");
#if BYTE_ORDER == LITTLE_ENDIAN
if (needswap)
#else
if (!needswap)
#endif
printf("endian\tbig-endian\n");
else
printf("endian\tlittle-endian\n");
t = fs->fs_time;
if ((sblock != SBLOCK_UFS1) || ISOPT(opt_alt_super))
printf("location %lld\t(-b %lld)\n",
(long long)sblock, (long long)(sblock/dev_bsize));
printf("magic\t%-8x\ttime\t%s",
fs->fs_magic, ctime(&t));

if (is_ufs2)
i = -1;
else {
i = 0;
if (fs->fs_old_postblformat != FS_42POSTBLFMT) {
i++;
if (fs->fs_old_inodefmt >= FS_44INODEFMT) {
int max;

i++;
max = fs->fs_maxcontig;
size = fs->fs_contigsumsize;
if ((max < 2 && size == 0)
|| (max > 1 && size >= MIN(max, FS_MAXCONTIG)))
i++;
}
if (fs->fs_old_flags & FS_FLAGS_UPDATED) {
i = 4;
}
}
}
if (!printold || fs->fs_sblockloc != SBLOCK_UFS1 ||
fs->fs_id[0] || fs->fs_id[1])
printf("superblock location\t%jd\tid\t[ %x %x ]\n",
(intmax_t)fs->fs_sblockloc, fs->fs_id[0], fs->fs_id[1]);
if (!is_ufs2)
printf("cylgrp\t%s\tinodes\t%s\tsblock\t%s\tfslevel %d\n",
i < 1 ? "static" : "dynamic",
i < 2 ? "4.2/4.3BSD" : i < 5 ? "4.4BSD" : "FFSv2",
i < 4 ? "FFSv1" : "FFSv2", i);
printf("nbfree\t%lld\tndir\t%lld\tnifree\t%lld\tnffree\t%lld\n",
(long long)fs->fs_cstotal.cs_nbfree,
(long long)fs->fs_cstotal.cs_ndir,
(long long)fs->fs_cstotal.cs_nifree,
(long long)fs->fs_cstotal.cs_nffree);
if (printold)
printf("ncg\t%d\tncyl\t%d\tsize\t%lld\tblocks\t%lld\n",
fs->fs_ncg, fs->fs_old_ncyl, (long long)fs->fs_size, (long long)fs->fs_dsize);
else
printf("ncg\t%d\tsize\t%lld\tblocks\t%lld\n",
fs->fs_ncg, (long long)fs->fs_size, (long long)fs->fs_dsize);
printf("bsize\t%d\tshift\t%d\tmask\t0x%08x\n",
fs->fs_bsize, fs->fs_bshift, fs->fs_bmask);
printf("fsize\t%d\tshift\t%d\tmask\t0x%08x\n",
fs->fs_fsize, fs->fs_fshift, fs->fs_fmask);
printf("frag\t%d\tshift\t%d\tfsbtodb\t%d\n",
fs->fs_frag, fs->fs_fragshift, fs->fs_fsbtodb);
if (printold)
printf("cpg\t%d\t", fs->fs_old_cpg);
printf("bpg\t%d\tfpg\t%d\tipg\t%d\n",
fs->fs_fpg / fs->fs_frag, fs->fs_fpg, fs->fs_ipg);
printf("minfree\t%d%%\toptim\t%s\tmaxcontig %d\tmaxbpg\t%d\n",
fs->fs_minfree, fs->fs_optim == FS_OPTSPACE ? "space" : "time",
fs->fs_maxcontig, fs->fs_maxbpg);
if (printold) {
printf("rotdelay %dms\theadswitch %dus\ttrackseek %dus\trps\t%d\n",
fs->fs_old_rotdelay, fs->fs_old_headswitch,
fs->fs_old_trkseek, fs->fs_old_rps);
printf("ntrak\t%d\tnsect\t%d\tnpsect\t%d\tspc\t%d\n",
fs->fs_spare2, fs->fs_old_nsect, fs->fs_old_npsect,
fs->fs_old_spc);
}
printf("symlinklen %d\t", fs->fs_maxsymlinklen);
if (printold)
printf("trackskew %d\tinterleave %d\t",
fs->fs_old_trackskew, fs->fs_old_interleave);
printf("contigsumsize %d\n", fs->fs_contigsumsize);
printf("maxfilesize 0x%016llx\n",
(unsigned long long)fs->fs_maxfilesize);
if (printold)
printf("nindir\t%d\tinopb\t%d\tnspf\t%d\n", fs->fs_nindir,
fs->fs_inopb, fs->fs_old_nspf);
else
printf("nindir\t%d\tinopb\t%d\n", fs->fs_nindir, fs->fs_inopb);
if (!printold || (fs->fs_avgfilesize > 0) || (fs->fs_avgfpdir > 0))
printf("avgfilesize %d\tavgfpdir %d\n",
fs->fs_avgfilesize, fs->fs_avgfpdir);
printf("sblkno\t%d\tcblkno\t%d\tiblkno\t%d\tdblkno\t%d\n",
fs->fs_sblkno, fs->fs_cblkno, fs->fs_iblkno, fs->fs_dblkno);
printf("sbsize\t%d\tcgsize\t%d", fs->fs_sbsize, fs->fs_cgsize);
if (printold)
printf("\toffset\t%d\tmask\t0x%08x",
fs->fs_old_cgoffset, fs->fs_old_cgmask);
printf("\ncsaddr\t%lld\tcssize\t%d",
(long long)fs->fs_csaddr, fs->fs_cssize);
if (printold)
printf("\tshift\t%d\tmask\t0x%08x",
fs->fs_old_csshift, fs->fs_old_csmask);
printf("\ncgrotor\t%d\tfmod\t%d\tronly\t%d\tclean\t0x%02x\n",
fs->fs_cgrotor, fs->fs_fmod, fs->fs_ronly, fs->fs_clean);
printf("wapbl version 0x%x\tlocation %u\tflags 0x%x\n",
fs->fs_journal_version, fs->fs_journal_location,
fs->fs_journal_flags);
printf("wapbl loc0 %" PRIu64 "\tloc1 %" PRIu64,
fs->fs_journallocs[0], fs->fs_journallocs[1]);
printf("\tloc2 %" PRIu64 "\tloc3 %" PRIu64 "\n",
fs->fs_journallocs[2], fs->fs_journallocs[3]);
printf("snapshot inodes");
for (int s = 0; s < FSMAXSNAP; s++) {
printf(" %u", fs->fs_snapinum[s]);
}
printf("\n");
printf("usrquota %" PRIu64 "\tgrpquota %" PRIu64 "\n",
fs->fs_quotafile[USRQUOTA], fs->fs_quotafile[GRPQUOTA]);
printf("flags\t");
if (fs->fs_flags == 0)
printf("none");
if (fs->fs_flags & FS_UNCLEAN)
printf("unclean ");
if (fs->fs_flags & FS_DOSOFTDEP)
printf("soft-updates ");
if (fs->fs_flags & FS_NEEDSFSCK)
printf("needs fsck run ");
if (fs->fs_flags & FS_SUJ)
printf("journaled soft-updates ");
if (fs->fs_flags & FS_POSIX1EACLS)
printf("posix1e acls ");
if (fs->fs_flags & FS_NFS4ACLS)
printf("nfs4 acls ");
if (fs->fs_flags & FS_MULTILABEL)
printf("multilabel ");
if (fs->fs_flags & FS_GJOURNAL)
printf("gjournal ");
if (fs->fs_flags & FS_FLAGS_UPDATED)
printf("fs_flags expanded ");
if (fs->fs_flags & FS_DOWAPBL)
printf("wapbl ");
if (fs->fs_flags & FS_DOQUOTA2)
printf("quotas ");
if (fs->fs_flags & FS_TRIM)
printf("trim ");
fsflags = fs->fs_flags & ~(FS_UNCLEAN | FS_DOSOFTDEP | FS_NEEDSFSCK |
FS_SUJ | FS_POSIX1EACLS | FS_MULTILABEL | FS_GJOURNAL |
FS_NFS4ACLS | FS_FLAGS_UPDATED | FS_DOWAPBL |
FS_DOQUOTA2 | FS_TRIM);
#ifdef FS_INDEXDIRS
if (fs->fs_flags & FS_INDEXDIRS)
printf("indexed directories ");
fsflags &= ~FS_INDEXDIRS
#endif
if (fsflags != 0)
printf("unknown flags (%#x)", fsflags);
printf("\nfsmnt\t%s\n", fs->fs_fsmnt);
if (!printold) {
printf("volname\t%s\tswuid\t%ju\n",
fs->fs_volname, (uintmax_t)fs->fs_swuid);
return 0;
}

if (fs->fs_old_cpc != 0)
printf("blocks available in each of %d rotational "
"positions\n", fs->fs_old_nrpos);
else
printf("(no rotational position table)\n\n");

if (!ISOPT(opt_verbose)) {
return 0;
}

for (int c = 0; c < fs->fs_old_cpc; c++) {
printf("cylinder number %d:", c);
for (i = 0; i < fs->fs_old_nrpos; i++) {
if (old_fs_postbl(&afs, c, opostbl)[i] == -1)
continue;
printf("\n position %d:\t", i);
for (int j = old_fs_postbl(&afs, c, opostbl)[i], k = 1;
; j += old_fs_rotbl(&afs)[j], k++) {
printf("%5d", j);
if (k % 12 == 0)
printf("\n\t\t");
if (old_fs_rotbl(&afs)[j] == 0)
break;
}
}
printf("\n");
}

return 0;
}

static int
print_cgsum(const char *name, int fd)
{
struct csum *ccsp;
int i, j, size;
uint32_t cgnum;

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;
ccsp = (struct csum *)((char *)afs.fs_csp + i);
if (lseek(fd,
(off_t)(FFS_FSBTODB(&afs, (afs.fs_csaddr + j * afs.fs_frag))) *
dev_bsize, SEEK_SET) == (off_t)-1)
return 1;
if (read(fd, ccsp, size) != size)
return 1;
if (needswap)
ffs_csum_swap(ccsp, ccsp, size);
}

printf("cs[].cs_(nbfree,ndir,nifree,nffree):\n\t");
for (cgnum = 0; cgnum < afs.fs_ncg; cgnum++) {
struct csum *cs = &afs.fs_cs(&afs, cgnum);
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 (printold && (afs.fs_old_ncyl % afs.fs_old_cpg)) {
printf("cylinders in last group %d\n",
i = afs.fs_old_ncyl % afs.fs_old_cpg);
printf("blocks in last group %d\n",
i * afs.fs_old_spc / (afs.fs_old_nspf << afs.fs_fragshift));
}
free(afs.fs_csp);
afs.fs_csp = NULL;

return 0;
}

static int
print_alt_super(const char *name, int fd)
{
union fsun alt;
uint32_t i;
off_t loc;
uint16_t alt_opostblsave[32*8];
int save_printold;

for (i = 0; i < afs.fs_ncg; i++) {
loc = (off_t)(FFS_FSBTODB(&afs, cgsblock(&afs, i))) * dev_bsize;
printf("\nalternate %d\n", i);
if (pread(fd, &alt, sizeof alt, loc) != sizeof alt) {
warnx("%s: error reading alt %d", name, i);
return (1);
}
save_printold = printold;
fix_superblock(&alt.fs, alt_opostblsave);
if (print_superblock(&alt.fs, alt_opostblsave, name, fd, loc)) {
printold = save_printold;
return 1;
}
printold = save_printold;
}
return 0;
}

static int
print_cginfo(const char *name, int fd)
{
uint32_t i;

printf("\n");
for (i = 0; i < afs.fs_ncg; i++) {
printf("\n");
if (dumpcg(name, fd, i))
return 1;
if (ISOPT(opt_inodes) && print_inodes(name, fd, i, 1))
return 1;
}
return 0;
}

static int
print_inodes(const char *name, int fd, int c, int n)
{
void *ino_buf = malloc(afs.fs_bsize);
void (*print_inode)(int, int, void *);
ino_t inum;
uint32_t i;

if (ino_buf == 0)
return 1;

print_inode = is_ufs2 ? print_ufs2_inode : print_ufs1_inode;

for (inum = c * afs.fs_ipg ; inum < (c+n) * afs.fs_ipg; inum += afs.fs_inopb) {
if (pread(fd, ino_buf, afs.fs_bsize,
ino_to_fsba(&afs, inum) * afs.fs_fsize) != afs.fs_bsize) {
free(ino_buf);
return 1;
}
for (i = 0; i < afs.fs_inopb; i++)
print_inode(inum + i, i, ino_buf);
}

free(ino_buf);
return 0;
}

static int
dumpcg(const char *name, int fd, int c)
{
off_t cur;
int i, j;
time_t t;

printf("cg %d:\n", c);
if ((cur = lseek(fd, (off_t)(FFS_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)
ffs_cg_swap(&acg, &acg, &afs);
if (printold)
t = acg.cg_old_time;
else
t = acg.cg_time;
printf("magic\t%x\ttell\t%llx\ttime\t%s",
afs.fs_old_postblformat == FS_42POSTBLFMT ?
((struct ocg *)&acg)->cg_magic : acg.cg_magic,
(long long)cur, ctime(&t));
if (printold)
printf("cgx\t%d\tncyl\t%d\tniblk\t%d\tndblk\t%d\n",
acg.cg_cgx, acg.cg_old_ncyl, acg.cg_old_niblk,
acg.cg_ndblk);
else
printf("cgx\t%d\tniblk\t%d\tndblk\t%d\n",
acg.cg_cgx, 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(0, cg_clustersfree(&acg, 0), acg.cg_nclusterblks);
} else
printf("\n");
printf("iused:\t");
pbits(0 * c * afs.fs_ipg, cg_inosused(&acg, 0), afs.fs_ipg);
printf("free:\t");
pbits(0, cg_blksfree(&acg, 0), afs.fs_fpg);
if (printold && ISOPT(opt_verbose)) {
printf("b:\n");
for (i = 0; i < afs.fs_old_cpg; i++) {
if (old_cg_blktot(&acg, 0)[i] == 0)
continue;
printf(" c%d:\t(%d)\t", i, old_cg_blktot(&acg, 0)[i]);
for (j = 0; j < afs.fs_old_nrpos; j++) {
if (afs.fs_old_cpc > 0 &&
old_fs_postbl(&afs, i % afs.fs_old_cpc, opostblsave)[j] == -1)
continue;
printf(" %d", old_cg_blks(&afs, &acg, i, 0)[j]);
}
printf("\n");
}
}
return (0);
}

static void
print_ufs1_inode(int inum, int i_off, void *ibuf)
{
struct ufs1_dinode *i = ibuf;

i += i_off;

if (needswap)
ffs_dinode1_swap(i,i);

if (afs.fs_old_inodefmt < FS_44INODEFMT) {
i->di_uid = i->di_ouid;
i->di_gid = i->di_ogid;
}

if (inum % afs.fs_ipg == 0)
printf(" inode: mode nlink size"
" ctime.nsec flags blocks"
" generation uid gid\n");
if (i->di_mode == 0 && i->di_nlink == 0 && !ISOPT(opt_verbose))
return;
printf("%8u: %6o %6d %20" PRIu64 " %10u.%09u %8x %10u %8x %10u %10u\n",
inum, i->di_mode, i->di_nlink, i->di_size,
i->di_ctime, i->di_ctimensec, i->di_flags, i->di_blocks,
i->di_gen, i->di_uid, i->di_gid);
}

static void
print_ufs2_inode(int inum, int i_off, void *ibuf)
{
struct ufs2_dinode *i = ibuf;

i += i_off;

if (needswap)
ffs_dinode2_swap(i,i);

if (inum % afs.fs_ipg == 0)
printf(" inode: mode nlink size"
" ctime.nsec flags blocks"
" generation uid gid\n");

if (i->di_mode == 0 && i->di_nlink == 0 && !ISOPT(opt_verbose))
return;

printf("%8u: %6o %6d %20" PRIu64 " %10" PRIu64 ".%09u %8x %10" PRIu64 " %8x %10u %10u\n",
inum, i->di_mode, i->di_nlink, i->di_size,
i->di_ctime, i->di_ctimensec, i->di_flags, i->di_blocks,
i->di_gen, i->di_uid, i->di_gid);
}

static void
pbits(int offset, 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", offset + i);
j = i;
while ((i+1)<max && isset(p, i+1))
i++;
if (i != j)
printf("-%d", offset + i);
}
printf("\n");
}

static int
print_journal(const char *name, int fd)
{
daddr_t off;
size_t count, blklen, bno, skip;
off_t boff, head, tail, len;
uint32_t generation;

if (afs.fs_journal_version != UFS_WAPBL_VERSION)
return 0;

generation = 0;
head = tail = 0;

switch (afs.fs_journal_location) {
case UFS_WAPBL_JOURNALLOC_END_PARTITION:
case UFS_WAPBL_JOURNALLOC_IN_FILESYSTEM:

off = afs.fs_journallocs[0];
count = afs.fs_journallocs[1];
blklen = afs.fs_journallocs[2];

for (bno=0; bno<count; bno += skip / blklen) {

skip = blklen;

boff = bno * blklen;
if (bno * blklen >= 2 * blklen &&
((head >= tail && (boff < tail || boff >= head)) ||
(head < tail && (boff >= head && boff < tail))))
continue;

printf("journal block %lu offset %lld\n",
(unsigned long)bno, (long long) boff);

if (lseek(fd, (off_t)(off*blklen) + boff, SEEK_SET)
== (off_t)-1)
return (1);
if (read(fd, &jbuf, blklen) != (ssize_t)blklen) {
warnx("%s: error reading journal", name);
return 1;
}

switch (awh.wc_type) {
case 0:
break;
case WAPBL_WC_HEADER:
print_journal_header(name);
if (awh.wc_generation > generation) {
head = awh.wc_head;
tail = awh.wc_tail;
}
generation = awh.wc_generation;
skip = awh.wc_len;
break;
default:
len = print_journal_entries(name, blklen);
skip = awh.wc_len;
if (len != (off_t)skip)
printf(" CORRUPTED RECORD\n");
break;
}

if (blklen == 0)
break;

skip = (skip + blklen - 1) / blklen * blklen;
if (skip == 0)
break;

}
break;
}

return 0;
}

static const char *
wapbl_type_string(unsigned t)
{
static char buf[12];

switch (t) {
case WAPBL_WC_BLOCKS:
return "blocks";
case WAPBL_WC_REVOCATIONS:
return "revocations";
case WAPBL_WC_INODES:
return "inodes";
case WAPBL_WC_HEADER:
return "header";
}

snprintf(buf,sizeof(buf),"%08x",t);
return buf;
}

static void
print_journal_header(const char *name)
{
printf(" type %s len %d version %u\n",
wapbl_type_string(awh.wc_type), awh.wc_len,
awh.wc_version);
printf(" checksum %08x generation %9u\n",
awh.wc_checksum, awh.wc_generation);
printf(" fsid %08x.%08x time %llu nsec %u\n",
awh.wc_fsid[0], awh.wc_fsid[1],
(unsigned long long)awh.wc_time, awh.wc_timensec);
printf(" log_bshift %10u fs_bshift %10u\n",
awh.wc_log_dev_bshift, awh.wc_fs_dev_bshift);
printf(" head %10lld tail %10lld\n",
(long long)awh.wc_head, (long long)awh.wc_tail);
printf(" circ_off %10lld circ_size %10lld\n",
(long long)awh.wc_circ_off, (long long)awh.wc_circ_size);
}

static off_t
print_journal_entries(const char *name, size_t blklen)
{
int i, n;
struct wapbl_wc_blocklist *wcb;
struct wapbl_wc_inodelist *wci;
off_t len = 0;
int ph;

printf(" type %s len %d",
wapbl_type_string(awn.wc_type), awn.wc_len);

switch (awn.wc_type) {
case WAPBL_WC_BLOCKS:
case WAPBL_WC_REVOCATIONS:
wcb = (struct wapbl_wc_blocklist *)&awn;
printf(" blkcount %u\n", wcb->wc_blkcount);
ph = (blklen - offsetof(struct wapbl_wc_blocklist, wc_blocks))
/ sizeof(wcb->wc_blocks[0]);
n = MIN(wcb->wc_blkcount, ph);
for (i=0; i<n; i++) {
if (ISOPT(opt_verbose)) {
printf(" %3d: daddr %14llu dlen %d\n", i,
(unsigned long long)wcb->wc_blocks[i].wc_daddr,
wcb->wc_blocks[i].wc_dlen);
}
len += wcb->wc_blocks[i].wc_dlen;
}
if (awn.wc_type == WAPBL_WC_BLOCKS) {
if (len % blklen)
len += blklen - len % blklen;
} else
len = 0;
break;
case WAPBL_WC_INODES:
wci = (struct wapbl_wc_inodelist *)&awn;
printf(" count %u clear %u\n",
wci->wc_inocnt, wci->wc_clear);
ph = (blklen - offsetof(struct wapbl_wc_inodelist, wc_inodes))
/ sizeof(wci->wc_inodes[0]);
n = MIN(wci->wc_inocnt, ph);
for (i=0; i<n; ++i) {
if (ISOPT(opt_verbose)) {
printf(" %3d: inumber %10u imode %08x\n", i,
wci->wc_inodes[i].wc_inumber,
wci->wc_inodes[i].wc_imode);
}
}
break;
default:
printf("\n");
break;
}

return len + blklen;
}

static void
usage(void)
{

(void)fprintf(stderr, "usage: dumpfs [-acFijmsv] filesys | device [...]\n");
exit(1);
}

static int
openpartition(const char *name, int flags, char *device, size_t devicelen)
{
char rawspec[MAXPATHLEN], xbuf[MAXPATHLEN], *p;
struct fstab *fs;
int fd, oerrno;

fs = getfsfile(name);
if (fs) {
const char *fsspec;
fsspec = getfsspecname(xbuf, sizeof(xbuf), fs->fs_spec);
if (fsspec == NULL) {
warn("%s", xbuf);
return -1;
}
if ((p = strrchr(fsspec, '/')) != NULL) {
snprintf(rawspec, sizeof(rawspec), "%.*s/r%s",
(int)(p - fsspec), fsspec, p + 1);
name = rawspec;
} else
name = fsspec;
}
fd = opendisk(name, flags, device, devicelen, 0);
if (fd == -1 && errno == ENOENT) {
oerrno = errno;
strlcpy(device, name, devicelen);
errno = oerrno;
}
return (fd);
}