Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
NetBSD/usr.sbin/dumplfs/dumplfs.c

832 lines
23 KiB
C
Raw Blame History

/* $NetBSD: dumplfs.c,v 1.35 2007/05/04 14:13:56 joerg Exp $ */
/*-
* Copyright (c) 1991, 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) 1991, 1993\n\
The Regents of the University of California. All rights reserved.\n");
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)dumplfs.c 8.5 (Berkeley) 5/24/95";
#else
__RCSID("$NetBSD: dumplfs.c,v 1.35 2007/05/04 14:13:56 joerg Exp $");
#endif
#endif /* not lint */
#include <sys/param.h>
#include <sys/ucred.h>
#include <sys/mount.h>
#include <sys/time.h>
#include <ufs/ufs/dinode.h>
#include <ufs/lfs/lfs.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <fstab.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include "extern.h"
static void addseg(char *);
static void dump_cleaner_info(struct lfs *, void *);
static void dump_dinode(struct ufs1_dinode *);
static void dump_ifile(int, struct lfs *, int, int, daddr_t);
static int dump_ipage_ifile(struct lfs *, int, char *, int);
static int dump_ipage_segusage(struct lfs *, int, char *, int);
static void dump_segment(int, int, daddr_t, struct lfs *, int);
static int dump_sum(int, struct lfs *, SEGSUM *, int, daddr_t);
static void dump_super(struct lfs *);
static void usage(void);
extern u_long cksum(void *, size_t);
typedef struct seglist SEGLIST;
struct seglist {
SEGLIST *next;
int num;
};
SEGLIST *seglist;
char *special;
/* Segment Usage formats */
#define print_suheader \
(void)printf("segnum\tflags\tnbytes\tninos\tnsums\tlastmod\n")
static inline void
print_suentry(int i, SEGUSE *sp, struct lfs *fs)
{
time_t t;
char flags[4] = " ";
if (sp->su_flags & SEGUSE_ACTIVE)
flags[0] = 'A';
if (sp->su_flags & SEGUSE_DIRTY)
flags[1] = 'D';
else
flags[1] = 'C';
if (sp->su_flags & SEGUSE_SUPERBLOCK)
flags[2] = 'S';
t = (fs->lfs_version == 1 ? sp->su_olastmod : sp->su_lastmod);
printf("%d\t%s\t%d\t%d\t%d\t%s", i, flags,
sp->su_nbytes, sp->su_ninos, sp->su_nsums,
ctime(&t));
}
/* Ifile formats */
#define print_iheader \
(void)printf("inum\tstatus\tversion\tdaddr\t\tfreeptr\n")
static inline void
print_ientry(int i, IFILE *ip)
{
if (ip->if_daddr == LFS_UNUSED_DADDR)
printf("%d\tFREE\t%d\t \t\t%llu\n", i, ip->if_version,
(unsigned long long)ip->if_nextfree);
else
printf("%d\tINUSE\t%d\t%8X\t%s\n",
i, ip->if_version, ip->if_daddr,
(ip->if_nextfree == LFS_ORPHAN_NEXTFREE ? "FFFFFFFF" : "-"));
}
#define fsbtobyte(fs, b) fsbtob((fs), (off_t)((b)))
int datasum_check = 0;
int
main(int argc, char **argv)
{
struct lfs lfs_sb1, lfs_sb2, *lfs_master;
daddr_t seg_addr, idaddr, sbdaddr;
int ch, do_allsb, do_ientries, do_segentries, fd, segnum;
do_allsb = 0;
do_ientries = 0;
do_segentries = 0;
idaddr = 0x0;
sbdaddr = 0x0;
while ((ch = getopt(argc, argv, "ab:diI:Ss:")) != -1)
switch(ch) {
case 'a': /* Dump all superblocks */
do_allsb = 1;
break;
case 'b': /* Use this superblock */
sbdaddr = strtol(optarg, NULL, 0);
break;
case 'd':
datasum_check = 1;
break;
case 'i': /* Dump ifile entries */
do_ientries = !do_ientries;
break;
case 'I': /* Use this ifile inode */
idaddr = strtol(optarg, NULL, 0);
break;
case 'S':
do_segentries = !do_segentries;
break;
case 's': /* Dump out these segments */
addseg(optarg);
break;
default:
usage();
}
argc -= optind;
argv += optind;
if (argc != 1)
usage();
special = argv[0];
if ((fd = open(special, O_RDONLY, 0)) < 0)
err(1, "%s", special);
if (sbdaddr == 0x0) {
/* Read the proto-superblock */
get(fd, LFS_LABELPAD, &(lfs_sb1.lfs_dlfs), sizeof(struct dlfs));
/* If that wasn't the real first sb, get the real first sb */
if (lfs_sb1.lfs_version > 1 &&
lfs_sb1.lfs_sboffs[0] > btofsb(&lfs_sb1, LFS_LABELPAD))
get(fd, fsbtob(&lfs_sb1, lfs_sb1.lfs_sboffs[0]),
&(lfs_sb1.lfs_dlfs), sizeof(struct dlfs));
/*
* Read the second superblock and figure out which check point is
* most up to date.
*/
get(fd,
fsbtobyte(&lfs_sb1, lfs_sb1.lfs_sboffs[1]),
&(lfs_sb2.lfs_dlfs), sizeof(struct dlfs));
lfs_master = &lfs_sb1;
if (lfs_sb1.lfs_version > 1) {
if (lfs_sb1.lfs_serial > lfs_sb2.lfs_serial) {
lfs_master = &lfs_sb2;
sbdaddr = lfs_sb1.lfs_sboffs[1];
} else
sbdaddr = lfs_sb1.lfs_sboffs[0];
} else {
if (lfs_sb1.lfs_otstamp > lfs_sb2.lfs_otstamp) {
lfs_master = &lfs_sb2;
sbdaddr = lfs_sb1.lfs_sboffs[1];
} else
sbdaddr = lfs_sb1.lfs_sboffs[0];
}
} else {
/* Read the first superblock */
get(fd, dbtob((off_t)sbdaddr), &(lfs_sb1.lfs_dlfs),
sizeof(struct dlfs));
lfs_master = &lfs_sb1;
}
/* Compatibility */
if (lfs_master->lfs_version == 1) {
lfs_master->lfs_sumsize = LFS_V1_SUMMARY_SIZE;
lfs_master->lfs_ibsize = lfs_master->lfs_bsize;
lfs_master->lfs_start = lfs_master->lfs_sboffs[0];
lfs_master->lfs_tstamp = lfs_master->lfs_otstamp;
lfs_master->lfs_fsbtodb = 0;
}
(void)printf("Master Superblock at 0x%llx:\n", (long long)sbdaddr);
dump_super(lfs_master);
dump_ifile(fd, lfs_master, do_ientries, do_segentries, idaddr);
if (seglist != NULL)
for (; seglist != NULL; seglist = seglist->next) {
seg_addr = sntod(lfs_master, seglist->num);
dump_segment(fd, seglist->num, seg_addr, lfs_master,
do_allsb);
}
else
for (segnum = 0, seg_addr = sntod(lfs_master, 0);
segnum < lfs_master->lfs_nseg;
segnum++, seg_addr = sntod(lfs_master, segnum))
dump_segment(fd, segnum, seg_addr, lfs_master,
do_allsb);
(void)close(fd);
exit(0);
}
/*
* We are reading all the blocks of an inode and dumping out the ifile table.
* This code could be tighter, but this is a first pass at getting the stuff
* printed out rather than making this code incredibly efficient.
*/
static void
dump_ifile(int fd, struct lfs *lfsp, int do_ientries, int do_segentries, daddr_t addr)
{
char *ipage;
struct ufs1_dinode *dip, *dpage;
/* XXX ondisk32 */
int32_t *addrp, *dindir, *iaddrp, *indir;
int block_limit, i, inum, j, nblocks, psize;
psize = lfsp->lfs_bsize;
if (!addr)
addr = lfsp->lfs_idaddr;
if (!(dpage = malloc(psize)))
err(1, "malloc");
get(fd, fsbtobyte(lfsp, addr), dpage, psize);
for (dip = dpage + INOPB(lfsp) - 1; dip >= dpage; --dip)
if (dip->di_inumber == LFS_IFILE_INUM)
break;
if (dip < dpage) {
warnx("unable to locate ifile inode at disk address 0x%llx",
(long long)addr);
return;
}
(void)printf("\nIFILE inode\n");
dump_dinode(dip);
(void)printf("\nIFILE contents\n");
nblocks = dip->di_size >> lfsp->lfs_bshift;
block_limit = MIN(nblocks, NDADDR);
/* Get the direct block */
if ((ipage = malloc(psize)) == NULL)
err(1, "malloc");
for (inum = 0, addrp = dip->di_db, i = 0; i < block_limit;
i++, addrp++) {
get(fd, fsbtobyte(lfsp, *addrp), ipage, psize);
if (i < lfsp->lfs_cleansz) {
dump_cleaner_info(lfsp, ipage);
if (do_segentries)
print_suheader;
continue;
}
if (i < (lfsp->lfs_segtabsz + lfsp->lfs_cleansz)) {
if (do_segentries)
inum = dump_ipage_segusage(lfsp, inum, ipage,
lfsp->lfs_sepb);
else
inum = (i < lfsp->lfs_segtabsz + lfsp->lfs_cleansz - 1);
if (!inum) {
if(!do_ientries)
goto e0;
else
print_iheader;
}
} else
inum = dump_ipage_ifile(lfsp, inum, ipage, lfsp->lfs_ifpb);
}
if (nblocks <= NDADDR)
goto e0;
/* Dump out blocks off of single indirect block */
if (!(indir = malloc(psize)))
err(1, "malloc");
get(fd, fsbtobyte(lfsp, dip->di_ib[0]), indir, psize);
block_limit = MIN(i + lfsp->lfs_nindir, nblocks);
for (addrp = indir; i < block_limit; i++, addrp++) {
if (*addrp == LFS_UNUSED_DADDR)
break;
get(fd, fsbtobyte(lfsp, *addrp), ipage, psize);
if (i < lfsp->lfs_cleansz) {
dump_cleaner_info(lfsp, ipage);
continue;
}
if (i < lfsp->lfs_segtabsz + lfsp->lfs_cleansz) {
if (do_segentries)
inum = dump_ipage_segusage(lfsp, inum, ipage,
lfsp->lfs_sepb);
else
inum = (i < lfsp->lfs_segtabsz + lfsp->lfs_cleansz - 1);
if (!inum) {
if(!do_ientries)
goto e1;
else
print_iheader;
}
} else
inum = dump_ipage_ifile(lfsp, inum, ipage, lfsp->lfs_ifpb);
}
if (nblocks <= lfsp->lfs_nindir * lfsp->lfs_ifpb)
goto e1;
/* Get the double indirect block */
if (!(dindir = malloc(psize)))
err(1, "malloc");
get(fd, fsbtobyte(lfsp, dip->di_ib[1]), dindir, psize);
for (iaddrp = dindir, j = 0; j < lfsp->lfs_nindir; j++, iaddrp++) {
if (*iaddrp == LFS_UNUSED_DADDR)
break;
get(fd, fsbtobyte(lfsp, *iaddrp), indir, psize);
block_limit = MIN(i + lfsp->lfs_nindir, nblocks);
for (addrp = indir; i < block_limit; i++, addrp++) {
if (*addrp == LFS_UNUSED_DADDR)
break;
get(fd, fsbtobyte(lfsp, *addrp), ipage, psize);
if (i < lfsp->lfs_cleansz) {
dump_cleaner_info(lfsp, ipage);
continue;
}
if (i < lfsp->lfs_segtabsz + lfsp->lfs_cleansz) {
if (do_segentries)
inum = dump_ipage_segusage(lfsp,
inum, ipage, lfsp->lfs_sepb);
else
inum = (i < lfsp->lfs_segtabsz +
lfsp->lfs_cleansz - 1);
if (!inum) {
if(!do_ientries)
goto e2;
else
print_iheader;
}
} else
inum = dump_ipage_ifile(lfsp, inum,
ipage, lfsp->lfs_ifpb);
}
}
e2: free(dindir);
e1: free(indir);
e0: free(dpage);
free(ipage);
}
static int
dump_ipage_ifile(struct lfs *lfsp, int i, char *pp, int tot)
{
char *ip;
int cnt, max, entsize;
if (lfsp->lfs_version == 1)
entsize = sizeof(IFILE_V1);
else
entsize = sizeof(IFILE);
max = i + tot;
for (ip = pp, cnt = i; cnt < max; cnt++, ip += entsize)
print_ientry(cnt, (IFILE *)ip);
return (max);
}
static int
dump_ipage_segusage(struct lfs *lfsp, int i, char *pp, int tot)
{
SEGUSE *sp;
int cnt, max;
struct seglist *slp;
max = i + tot;
for (sp = (SEGUSE *)pp, cnt = i;
cnt < lfsp->lfs_nseg && cnt < max; cnt++) {
if (seglist == NULL)
print_suentry(cnt, sp, lfsp);
else {
for (slp = seglist; slp != NULL; slp = slp->next)
if (cnt == slp->num) {
print_suentry(cnt, sp, lfsp);
break;
}
}
if (lfsp->lfs_version > 1)
++sp;
else
sp = (SEGUSE *)((SEGUSE_V1 *)sp + 1);
}
if (max >= lfsp->lfs_nseg)
return (0);
else
return (max);
}
static void
dump_dinode(struct ufs1_dinode *dip)
{
int i;
time_t at, mt, ct;
at = dip->di_atime;
mt = dip->di_mtime;
ct = dip->di_ctime;
(void)printf(" %so%o\t%s%d\t%s%d\t%s%d\t%s%llu\n",
"mode ", dip->di_mode,
"nlink ", dip->di_nlink,
"uid ", dip->di_uid,
"gid ", dip->di_gid,
"size ", (long long)dip->di_size);
(void)printf(" %s%s %s%s %s%s",
"atime ", ctime(&at),
"mtime ", ctime(&mt),
"ctime ", ctime(&ct));
(void)printf(" inum %d\n", dip->di_inumber);
(void)printf(" Direct Addresses\n");
for (i = 0; i < NDADDR; i++) {
(void)printf("\t0x%x", dip->di_db[i]);
if ((i % 6) == 5)
(void)printf("\n");
}
for (i = 0; i < NIADDR; i++)
(void)printf("\t0x%x", dip->di_ib[i]);
(void)printf("\n");
}
static int
dump_sum(int fd, struct lfs *lfsp, SEGSUM *sp, int segnum, daddr_t addr)
{
FINFO *fp;
int32_t *dp, *idp;
int i, j, acc;
int ck;
int numbytes, numblocks;
char *datap;
struct ufs1_dinode *inop;
size_t el_size;
u_int32_t datasum;
time_t t;
char *buf;
if (sp->ss_magic != SS_MAGIC ||
sp->ss_sumsum != (ck = cksum(&sp->ss_datasum,
lfsp->lfs_sumsize - sizeof(sp->ss_sumsum)))) {
/* Don't print "corrupt" if we're just too close to the edge */
if (dtosn(lfsp, addr + fsbtodb(lfsp, 1)) ==
dtosn(lfsp, addr))
(void)printf("dumplfs: %s %d address 0x%llx\n",
"corrupt summary block; segment", segnum,
(long long)addr);
return -1;
}
if (lfsp->lfs_version > 1 && sp->ss_ident != lfsp->lfs_ident) {
(void)printf("dumplfs: %s %d address 0x%llx\n",
"summary from a former life; segment", segnum,
(long long)addr);
return -1;
}
(void)printf("Segment Summary Info at 0x%llx\n", (long long)addr);
(void)printf(" %s0x%x\t%s%d\t%s%d\t%s%c%c%c%c\n %s0x%x\t%s0x%x",
"next ", sp->ss_next,
"nfinfo ", sp->ss_nfinfo,
"ninos ", sp->ss_ninos,
"flags ", (sp->ss_flags & SS_DIROP) ? 'D' : '-',
(sp->ss_flags & SS_CONT) ? 'C' : '-',
(sp->ss_flags & SS_CLEAN) ? 'L' : '-',
(sp->ss_flags & SS_RFW) ? 'R' : '-',
"sumsum ", sp->ss_sumsum,
"datasum ", sp->ss_datasum );
if (lfsp->lfs_version == 1) {
t = sp->ss_ocreate;
(void)printf("\tcreate %s\n", ctime(&t));
} else {
t = sp->ss_create;
(void)printf("\tcreate %s", ctime(&t));
(void)printf(" roll_id %-8x", sp->ss_ident);
(void)printf(" serial %lld\n", (long long)sp->ss_serial);
}
/* Dump out inode disk addresses */
dp = (int32_t *)sp;
dp += lfsp->lfs_sumsize / sizeof(int32_t);
inop = malloc(lfsp->lfs_bsize);
printf(" Inode addresses:");
numbytes = 0;
numblocks = 0;
for (dp--, i = 0; i < sp->ss_ninos; dp--) {
++numblocks;
numbytes += lfsp->lfs_ibsize; /* add bytes for inode block */
printf("\t0x%x {", *dp);
get(fd, fsbtobyte(lfsp, *dp), inop, lfsp->lfs_ibsize);
for (j = 0; i < sp->ss_ninos && j < INOPB(lfsp); j++, i++) {
if (j > 0)
(void)printf(", ");
(void)printf("%dv%d", inop[j].di_inumber, inop[j].di_gen);
}
(void)printf("}");
if (((i/INOPB(lfsp)) % 4) == 3)
(void)printf("\n");
}
free(inop);
printf("\n");
if (lfsp->lfs_version == 1)
fp = (FINFO *)((SEGSUM_V1 *)sp + 1);
else
fp = (FINFO *)(sp + 1);
for (i = 0; i < sp->ss_nfinfo; i++) {
(void)printf(" FINFO for inode: %d version %d nblocks %d lastlength %d\n",
fp->fi_ino, fp->fi_version, fp->fi_nblocks,
fp->fi_lastlength);
dp = &(fp->fi_blocks[0]);
numblocks += fp->fi_nblocks;
for (j = 0; j < fp->fi_nblocks; j++, dp++) {
(void)printf("\t%d", *dp);
if ((j % 8) == 7)
(void)printf("\n");
if (j == fp->fi_nblocks - 1)
numbytes += fp->fi_lastlength;
else
numbytes += lfsp->lfs_bsize;
}
if ((j % 8) != 0)
(void)printf("\n");
fp = (FINFO *)dp;
}
if (datasum_check == 0)
return (numbytes);
/*
* Now that we know the number of blocks, run back through and
* compute the data checksum. (A bad data checksum is not enough
* to prevent us from continuing, but it odes merit a warning.)
*/
idp = (int32_t *)sp;
idp += lfsp->lfs_sumsize / sizeof(int32_t);
--idp;
if (lfsp->lfs_version == 1) {
fp = (FINFO *)((SEGSUM_V1 *)sp + 1);
el_size = sizeof(unsigned long);
} else {
fp = (FINFO *)(sp + 1);
el_size = sizeof(u_int32_t);
}
datap = (char *)malloc(el_size * numblocks);
memset(datap, 0, el_size * numblocks);
acc = 0;
addr += btofsb(lfsp, lfsp->lfs_sumsize);
buf = malloc(lfsp->lfs_bsize);
for (i = 0; i < sp->ss_nfinfo; i++) {
while (addr == *idp) {
get(fd, fsbtobyte(lfsp, addr), buf, lfsp->lfs_ibsize);
memcpy(datap + acc * el_size, buf, el_size);
addr += btofsb(lfsp, lfsp->lfs_ibsize);
--idp;
++acc;
}
for (j = 0; j < fp->fi_nblocks; j++) {
get(fd, fsbtobyte(lfsp, addr), buf, lfsp->lfs_fsize);
memcpy(datap + acc * el_size, buf, el_size);
if (j == fp->fi_nblocks - 1)
addr += btofsb(lfsp, fp->fi_lastlength);
else
addr += btofsb(lfsp, lfsp->lfs_bsize);
++acc;
}
fp = (FINFO *)&(fp->fi_blocks[fp->fi_nblocks]);
}
while (addr == *idp) {
get(fd, fsbtobyte(lfsp, addr), buf, lfsp->lfs_ibsize);
memcpy(datap + acc * el_size, buf, el_size);
addr += btofsb(lfsp, lfsp->lfs_ibsize);
--idp;
++acc;
}
free(buf);
if (acc != numblocks)
printf("** counted %d blocks but should have been %d\n",
acc, numblocks);
datasum = cksum(datap, numblocks * el_size);
if (datasum != sp->ss_datasum)
printf("** computed datasum 0x%lx does not match given datasum 0x%lx\n", (unsigned long)datasum, (unsigned long)sp->ss_datasum);
free(datap);
return (numbytes);
}
static void
dump_segment(int fd, int segnum, daddr_t addr, struct lfs *lfsp, int dump_sb)
{
struct lfs lfs_sb, *sbp;
SEGSUM *sump;
char *sumblock;
int did_one, nbytes, sb;
off_t sum_offset;
daddr_t new_addr;
(void)printf("\nSEGMENT %lld (Disk Address 0x%llx)\n",
(long long)dtosn(lfsp, addr), (long long)addr);
sum_offset = fsbtobyte(lfsp, addr);
sumblock = malloc(lfsp->lfs_sumsize);
if (lfsp->lfs_version > 1 && segnum == 0) {
if (fsbtob(lfsp, lfsp->lfs_start) < LFS_LABELPAD) {
/* First segment eats the disklabel */
sum_offset += fragroundup(lfsp, LFS_LABELPAD) -
fsbtob(lfsp, lfsp->lfs_start);
addr += btofsb(lfsp, fragroundup(lfsp, LFS_LABELPAD)) -
lfsp->lfs_start;
printf("Disklabel at 0x0\n");
}
}
sb = 0;
did_one = 0;
do {
get(fd, sum_offset, sumblock, lfsp->lfs_sumsize);
sump = (SEGSUM *)sumblock;
if ((lfsp->lfs_version > 1 &&
sump->ss_ident != lfsp->lfs_ident) ||
sump->ss_sumsum != cksum (&sump->ss_datasum,
lfsp->lfs_sumsize - sizeof(sump->ss_sumsum))) {
sbp = (struct lfs *)sump;
if ((sb = (sbp->lfs_magic == LFS_MAGIC))) {
printf("Superblock at 0x%x\n",
(unsigned)btofsb(lfsp, sum_offset));
if (dump_sb) {
get(fd, sum_offset, &(lfs_sb.lfs_dlfs),
sizeof(struct dlfs));
dump_super(&lfs_sb);
}
if (lfsp->lfs_version > 1)
sum_offset += fragroundup(lfsp, LFS_SBPAD);
else
sum_offset += LFS_SBPAD;
} else if (did_one)
break;
else {
printf("Segment at 0x%llx empty or corrupt\n",
(long long)addr);
break;
}
} else {
nbytes = dump_sum(fd, lfsp, sump, segnum,
btofsb(lfsp, sum_offset));
if (nbytes >= 0)
sum_offset += lfsp->lfs_sumsize + nbytes;
else
sum_offset = 0;
did_one = 1;
}
/* If the segment ends right on a boundary, it still ends */
new_addr = btofsb(lfsp, sum_offset);
/* printf("end daddr = 0x%lx\n", (long)new_addr); */
if (dtosn(lfsp, new_addr) != dtosn(lfsp, addr))
break;
} while (sum_offset);
free(sumblock);
}
static void
dump_super(struct lfs *lfsp)
{
int i;
(void)printf(" %s0x%-8x %s0x%-8x %s%-10d\n",
"magic ", lfsp->lfs_magic,
"version ", lfsp->lfs_version,
"size ", lfsp->lfs_size);
(void)printf(" %s%-10d %s%-10d %s%-10d\n",
"ssize ", lfsp->lfs_ssize,
"dsize ", lfsp->lfs_dsize,
"bsize ", lfsp->lfs_bsize);
(void)printf(" %s%-10d %s%-10d %s%-10d\n",
"fsize ", lfsp->lfs_fsize,
"frag ", lfsp->lfs_frag,
"minfree ", lfsp->lfs_minfree);
(void)printf(" %s%-10d %s%-10d %s%-10d\n",
"inopb ", lfsp->lfs_inopb,
"ifpb ", lfsp->lfs_ifpb,
"nindir ", lfsp->lfs_nindir);
(void)printf(" %s%-10d %s%-10d %s%-10d\n",
"nseg ", lfsp->lfs_nseg,
"sepb ", lfsp->lfs_sepb,
"cleansz ", lfsp->lfs_cleansz);
(void)printf(" %s%-10d %s0x%-8x %s%-10d\n",
"segtabsz ", lfsp->lfs_segtabsz,
"segmask ", lfsp->lfs_segmask,
"segshift ", lfsp->lfs_segshift);
(void)printf(" %s0x%-8qx %s%-10d %s0x%-8qX\n",
"bmask ", (long long)lfsp->lfs_bmask,
"bshift ", lfsp->lfs_bshift,
"ffmask ", (long long)lfsp->lfs_ffmask);
(void)printf(" %s%-10d %s0x%-8qx %s%u\n",
"ffshift ", lfsp->lfs_ffshift,
"fbmask ", (long long)lfsp->lfs_fbmask,
"fbshift ", lfsp->lfs_fbshift);
(void)printf(" %s%-10d %s%-10d %s0x%-8x\n",
"sushift ", lfsp->lfs_sushift,
"fsbtodb ", lfsp->lfs_fsbtodb,
"cksum ", lfsp->lfs_cksum);
(void)printf(" %s%-10d %s%-10d %s%-10d\n",
"nclean ", lfsp->lfs_nclean,
"dmeta ", lfsp->lfs_dmeta,
"minfreeseg ", lfsp->lfs_minfreeseg);
(void)printf(" %s0x%-8x %s%-9d %s%-10d\n",
"roll_id ", lfsp->lfs_ident,
"interleave ", lfsp->lfs_interleave,
"sumsize ", lfsp->lfs_sumsize);
(void)printf(" %s%-10d %s0x%-8qx\n",
"seg0addr ", lfsp->lfs_start,
"maxfilesize ", (long long)lfsp->lfs_maxfilesize);
(void)printf(" Superblock disk addresses:\n ");
for (i = 0; i < LFS_MAXNUMSB; i++) {
(void)printf(" 0x%-8x", lfsp->lfs_sboffs[i]);
if (i == (LFS_MAXNUMSB >> 1))
(void)printf("\n ");
}
(void)printf("\n");
(void)printf(" Checkpoint Info\n");
(void)printf(" %s%-10d %s0x%-8x %s%-10d\n",
"freehd ", lfsp->lfs_freehd,
"idaddr ", lfsp->lfs_idaddr,
"ifile ", lfsp->lfs_ifile);
(void)printf(" %s%-10d %s%-10d %s%-10d\n",
"uinodes ", lfsp->lfs_uinodes,
"bfree ", lfsp->lfs_bfree,
"avail ", lfsp->lfs_avail);
(void)printf(" %s%-10d %s0x%-8x %s0x%-8x\n",
"nfiles ", lfsp->lfs_nfiles,
"lastseg ", lfsp->lfs_lastseg,
"nextseg ", lfsp->lfs_nextseg);
(void)printf(" %s0x%-8x %s0x%-8x %s%-10lld\n",
"curseg ", lfsp->lfs_curseg,
"offset ", lfsp->lfs_offset,
"serial ", (long long)lfsp->lfs_serial);
(void)printf(" tstamp %s", ctime((time_t *)&lfsp->lfs_tstamp));
}
static void
addseg(char *arg)
{
SEGLIST *p;
if ((p = malloc(sizeof(SEGLIST))) == NULL)
err(1, "malloc");
p->next = seglist;
p->num = atoi(arg);
seglist = p;
}
static void
dump_cleaner_info(struct lfs *lfsp, void *ipage)
{
CLEANERINFO *cip;
cip = (CLEANERINFO *)ipage;
if (lfsp->lfs_version > 1) {
(void)printf("free_head %d\n", cip->free_head);
(void)printf("free_tail %d\n", cip->free_tail);
}
(void)printf("clean\t%d\tdirty\t%d\n",
cip->clean, cip->dirty);
(void)printf("bfree\t%d\tavail\t%d\n\n",
cip->bfree, cip->avail);
}
static void
usage(void)
{
(void)fprintf(stderr, "usage: dumplfs [-adiS] [-b blkno] [-I blkno] [-s segno] filesys|device\n");
exit(1);
}
Reference in New Issue View Git Blame Copy Permalink