#include <sys/param.h>
#include <sys/time.h>
#include <vfs/ufs/dinode.h>
#include <vfs/ufs/fs.h>
#include <err.h>
#include <fcntl.h>
#include <fstab.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
static union {
struct fs fs;
char pad[MAXBSIZE];
} fsun;
#define afs fsun.fs
static union {
struct cg cg;
char pad[MAXBSIZE];
} cgun;
#define acg cgun.cg
static long dev_bsize = 1;
static int dumpfs(char *);
static int dumpcg(char *, int, int);
static int marshal(const char*);
static void pbits(void *, int);
static void usage(void) __dead2;
int
main(int argc, char **argv)
{
struct fstab *fs;
int ch, domarshal, eval;
domarshal = 0;
while ((ch = getopt(argc, argv, "m")) != -1)
switch(ch) {
case 'm':
domarshal = 1;
break;
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
if (argc < 1)
usage();
for (eval = 0; *argv; ++argv)
if ((fs = getfsfile(*argv)) == NULL)
if (domarshal)
eval |= marshal(*argv);
else
eval |= dumpfs(*argv);
else
if (domarshal)
eval |= marshal(fs->fs_spec);
else
eval |= dumpfs(fs->fs_spec);
exit(eval);
}
static int
dumpfs(char *name)
{
ssize_t n;
int fd, c, i, j, k, size;
time_t fs_time;
if ((fd = open(name, O_RDONLY, 0)) < 0)
goto err;
if (lseek(fd, (off_t)SBOFF, SEEK_SET) == (off_t)-1)
goto err;
if ((n = read(fd, &afs, SBSIZE)) == -1)
goto err;
if (n != SBSIZE) {
warnx("%s: non-existent or truncated superblock, skipped",
name);
close(fd);
return (1);
}
if (afs.fs_magic != FS_MAGIC) {
warnx("%s: superblock has bad magic number, skipped", name);
close(fd);
return (1);
}
if (afs.fs_postblformat == FS_42POSTBLFMT)
afs.fs_nrpos = 8;
dev_bsize = afs.fs_fsize / fsbtodb(&afs, 1);
fs_time = afs.fs_time;
printf("magic\t%x\ttime\t%s", afs.fs_magic, ctime(&fs_time));
printf("id\t[ %x %x ]\n", afs.fs_id[0], afs.fs_id[1]);
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\trps\t%d\n",
afs.fs_rotdelay, 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\tmaxfilesize\t%ju\n",
afs.fs_nindir, afs.fs_inopb, afs.fs_nspf,
(uintmax_t)afs.fs_maxfilesize);
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);
printf("flags\t");
if (afs.fs_flags == 0)
printf("none");
if (afs.fs_flags & FS_UNCLEAN)
printf("unclean ");
if (afs.fs_flags & FS_DOSOFTDEP)
printf("soft-updates ");
if ((afs.fs_flags & ~(FS_UNCLEAN | FS_DOSOFTDEP)) != 0)
printf("unknown flags (%#x)",
afs.fs_flags & ~(FS_UNCLEAN | FS_DOSOFTDEP));
putchar('\n');
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");
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;
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, (char *)afs.fs_csp + i, 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;
close(fd);
return (0);
err: if (fd != -1)
close(fd);
warn("%s", name);
return (1);
};
static int
dumpcg(char *name, int fd, int c)
{
off_t cur;
int i, j;
time_t cg_time;
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) {
warnx("%s: error reading cg", name);
return (1);
}
cg_time = acg.cg_time;
printf("magic\t%x\ttell\t%jx\ttime\t%s",
afs.fs_postblformat == FS_42POSTBLFMT ?
((struct ocg *)&acg)->cg_magic : acg.cg_magic,
(uintmax_t)cur, ctime(&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);
};
static int
marshal(const char *name)
{
ssize_t n;
int fd;
static char realname[PATH_MAX];
if ((fd = open(name, O_RDONLY, 0)) < 0)
goto err;
if (lseek(fd, (off_t)SBOFF, SEEK_SET) == (off_t)-1)
goto err;
if ((n = read(fd, &afs, SBSIZE)) == -1)
goto err;
if (n != SBSIZE) {
warnx("%s: non-existent or truncated superblock, skipped",
name);
close(fd);
return (1);
}
if (afs.fs_magic != FS_MAGIC) {
warnx("%s: superblock has bad magic number, skipped", name);
close(fd);
return (1);
}
if(strncmp(name, "/dev", 4) == 0) {
snprintf(realname, PATH_MAX, "%s", name);
} else {
snprintf(realname, PATH_MAX, "/dev/%s", name);
}
printf("# newfs command for %s (%s)\n", name, realname);
printf("newfs ");
if (afs.fs_flags & FS_DOSOFTDEP)
printf("-U ");
printf("-a %d ", afs.fs_maxcontig);
printf("-b %d ", afs.fs_bsize);
printf("-e %d ", afs.fs_maxbpg);
printf("-f %d ", afs.fs_fsize);
printf("-g %d ", afs.fs_avgfilesize);
printf("-h %d ", afs.fs_avgfpdir);
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;
}
printf("-s %jd ", (intmax_t)afs.fs_size);
printf("%s ", realname);
printf("\n");
return (0);
err: if (fd != -1)
close(fd);
warn("%s", name);
return (1);
}
static 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");
}
static void
usage(void)
{
fprintf(stderr, "usage: dumpfs filesys | device\n");
exit(1);
}
