int
setup(const char *dev)
{
#ifndef VERBOSE_BLOCKMAP
long bmapsize;
#endif
struct stat statb;
int doskipclean;
u_int64_t maxfilesize;
int open_flags;
struct uvnode *ivp;
struct ubuf *bp;
int i, isdirty;
long sn, curseg;
SEGUSE *sup;
size_t sumstart;
havesb = 0;
doskipclean = skipclean;
if (stat(dev, &statb) < 0) {
pfatal("Can't stat %s: %s\n", dev, strerror(errno));
return (0);
}
if (!S_ISCHR(statb.st_mode) && skipclean) {
pfatal("%s is not a character device", dev);
if (reply("CONTINUE") == 0)
return (0);
}
if (nflag)
open_flags = O_RDONLY;
else
open_flags = O_RDWR;
if ((fsreadfd = open(dev, open_flags)) < 0) {
pfatal("Can't open %s: %s\n", dev, strerror(errno));
return (0);
}
if (nflag) {
if (preen)
pfatal("NO WRITE ACCESS");
printf("** %s (NO WRITE)\n", dev);
quiet = 0;
} else if (!preen && !quiet)
printf("** %s\n", dev);
fsmodified = 0;
lfdir = 0;
/* Initialize time in case we have to write */
time(&write_time);
bufinit(0); /* XXX we could make a better guess */
fs = lfs_init(fsreadfd, bflag, idaddr, 0, debug);
if (fs == NULL) {
if (preen)
printf("%s: ", cdevname());
errexit("BAD SUPER BLOCK OR IFILE INODE NOT FOUND");
}
/* Resize buffer cache now that we have a superblock to guess from. */
bufrehash((lfs_sb_getsegtabsz(fs) + maxino / lfs_sb_getifpb(fs)) << 4);
if (lfs_sb_getpflags(fs) & LFS_PF_CLEAN) {
if (doskipclean) {
if (!quiet)
pwarn("%sile system is clean; not checking\n",
preen ? "f" : "** F");
return (-1);
}
if (!preen)
pwarn("** File system is already clean\n");
}
if (idaddr) {
daddr_t tdaddr;
SEGSUM *sp;
FINFO *fp;
int bc;
if (debug)
pwarn("adjusting offset, serial for -i 0x%jx\n",
(uintmax_t)idaddr);
tdaddr = lfs_sntod(fs, lfs_dtosn(fs, idaddr));
if (lfs_sntod(fs, lfs_dtosn(fs, tdaddr)) == tdaddr) {
if (tdaddr == lfs_sb_gets0addr(fs))
tdaddr += lfs_btofsb(fs, LFS_LABELPAD);
for (i = 0; i < LFS_MAXNUMSB; i++) {
if (lfs_sb_getsboff(fs, i) == tdaddr)
tdaddr += lfs_btofsb(fs, LFS_SBPAD);
if (lfs_sb_getsboff(fs, i) > tdaddr)
break;
}
}
lfs_sb_setoffset(fs, tdaddr);
if (debug)
pwarn("begin with offset/serial 0x%jx/%jd\n",
(uintmax_t)lfs_sb_getoffset(fs),
(intmax_t)lfs_sb_getserial(fs));
while (tdaddr < idaddr) {
bread(fs->lfs_devvp, LFS_FSBTODB(fs, tdaddr),
lfs_sb_getsumsize(fs),
0, &bp);
sp = (SEGSUM *)bp->b_data;
sumstart = lfs_ss_getsumstart(fs);
if (lfs_ss_getsumsum(fs, sp) !=
cksum((char *)sp + sumstart,
lfs_sb_getsumsize(fs) - sumstart)) {
brelse(bp, 0);
if (debug)
printf("bad cksum at %jx\n",
(uintmax_t)tdaddr);
break;
}
fp = SEGSUM_FINFOBASE(fs, sp);
bc = howmany(lfs_ss_getninos(fs, sp), LFS_INOPB(fs)) <<
(lfs_sb_getversion(fs) > 1 ? lfs_sb_getffshift(fs) :
lfs_sb_getbshift(fs));
for (i = 0; i < lfs_ss_getnfinfo(fs, sp); i++) {
bc += lfs_fi_getlastlength(fs, fp) + ((lfs_fi_getnblocks(fs, fp) - 1)
<< lfs_sb_getbshift(fs));
fp = NEXT_FINFO(fs, fp);
}
tdaddr += lfs_btofsb(fs, bc) + 1;
lfs_sb_setoffset(fs, tdaddr);
lfs_sb_setserial(fs, lfs_ss_getserial(fs, sp) + 1);
brelse(bp, 0);
}
/*
* Set curseg, nextseg appropriately -- inlined from
* lfs_newseg()
*/
curseg = lfs_dtosn(fs, lfs_sb_getoffset(fs));
lfs_sb_setcurseg(fs, lfs_sntod(fs, curseg));
for (sn = curseg + lfs_sb_getinterleave(fs);;) {
sn = (sn + 1) % lfs_sb_getnseg(fs);
if (sn == curseg)
errx(1, "init: no clean segments");
LFS_SEGENTRY(sup, fs, sn, bp);
isdirty = sup->su_flags & SEGUSE_DIRTY;
brelse(bp, 0);
if (!isdirty)
break;
}
/* Skip superblock if necessary */
for (i = 0; i < LFS_MAXNUMSB; i++)
if (lfs_sb_getoffset(fs) == lfs_sb_getsboff(fs, i))
lfs_sb_addoffset(fs, lfs_btofsb(fs, LFS_SBPAD));
++fs->lfs_nactive;
lfs_sb_setnextseg(fs, lfs_sntod(fs, sn));
if (debug) {
pwarn("offset = 0x%" PRIx64 ", serial = %" PRIu64 "\n",
lfs_sb_getoffset(fs), lfs_sb_getserial(fs));
pwarn("curseg = %" PRIx64 ", nextseg = %" PRIx64 "\n",
lfs_sb_getcurseg(fs), lfs_sb_getnextseg(fs));
}
if (!nflag && !skipclean) {
lfs_sb_setidaddr(fs, idaddr);
fsmodified = 1;
sbdirty();
}
}
if (debug) {
pwarn("idaddr = 0x%jx\n", idaddr ? (uintmax_t)idaddr :
(uintmax_t)lfs_sb_getidaddr(fs));
pwarn("dev_bsize = %lu\n", dev_bsize);
pwarn("lfs_bsize = %lu\n", (unsigned long) lfs_sb_getbsize(fs));
pwarn("lfs_fsize = %lu\n", (unsigned long) lfs_sb_getfsize(fs));
pwarn("lfs_frag = %lu\n", (unsigned long) lfs_sb_getfrag(fs));
pwarn("lfs_inopb = %lu\n", (unsigned long) lfs_sb_getinopb(fs));
}
if (lfs_sb_getversion(fs) == 1)
maxfsblock = lfs_blkstofrags(fs, lfs_sb_getsize(fs));
else
maxfsblock = lfs_sb_getsize(fs);
maxfilesize = calcmaxfilesize(lfs_sb_getbshift(fs));
if (/* lfs_sb_getminfree(fs) < 0 || */ lfs_sb_getminfree(fs) > 99) {
pfatal("IMPOSSIBLE MINFREE=%u IN SUPERBLOCK",
lfs_sb_getminfree(fs));
if (reply("SET TO DEFAULT") == 1) {
lfs_sb_setminfree(fs, 10);
sbdirty();
}
}
if (lfs_sb_getbmask(fs) != lfs_sb_getbsize(fs) - 1) {
pwarn("INCORRECT BMASK=0x%jx IN SUPERBLOCK (SHOULD BE 0x%x)",
(uintmax_t)lfs_sb_getbmask(fs),
lfs_sb_getbsize(fs) - 1);
lfs_sb_setbmask(fs, lfs_sb_getbsize(fs) - 1);
if (preen)
printf(" (FIXED)\n");
if (preen || reply("FIX") == 1) {
sbdirty();
}
}
if (lfs_sb_getffmask(fs) != lfs_sb_getfsize(fs) - 1) {
pwarn("INCORRECT FFMASK=0x%jx IN SUPERBLOCK (SHOULD BE 0x%x)",
(uintmax_t)lfs_sb_getffmask(fs),
lfs_sb_getfsize(fs) - 1);
lfs_sb_setffmask(fs, lfs_sb_getfsize(fs) - 1);
if (preen)
printf(" (FIXED)\n");
if (preen || reply("FIX") == 1) {
sbdirty();
}
}
if (lfs_sb_getfbmask(fs) != (1U << lfs_sb_getfbshift(fs)) - 1) {
pwarn("INCORRECT FBMASK=0x%jx IN SUPERBLOCK (SHOULD BE 0x%x)",
(uintmax_t)lfs_sb_getfbmask(fs),
(1U << lfs_sb_getfbshift(fs)) - 1);
lfs_sb_setfbmask(fs, (1U << lfs_sb_getfbshift(fs)) - 1);
if (preen)
printf(" (FIXED)\n");
if (preen || reply("FIX") == 1) {
sbdirty();
}
}
if (lfs_sb_getmaxfilesize(fs) != maxfilesize) {
pwarn(
"INCORRECT MAXFILESIZE=%ju IN SUPERBLOCK (SHOULD BE %ju WITH BSHIFT %u)",
(uintmax_t) lfs_sb_getmaxfilesize(fs),
(uintmax_t) maxfilesize, lfs_sb_getbshift(fs));
if (preen)
printf(" (FIXED)\n");
if (preen || reply("FIX") == 1) {
lfs_sb_setmaxfilesize(fs, maxfilesize);
sbdirty();
}
}
if (lfs_sb_getmaxsymlinklen(fs) != LFS_MAXSYMLINKLEN(fs)) {
pwarn("INCORRECT MAXSYMLINKLEN=%d IN SUPERBLOCK (SHOULD BE %zu)",
lfs_sb_getmaxsymlinklen(fs), LFS_MAXSYMLINKLEN(fs));
lfs_sb_setmaxsymlinklen(fs, LFS_MAXSYMLINKLEN(fs));
if (preen)
printf(" (FIXED)\n");
if (preen || reply("FIX") == 1) {
sbdirty();
}
}
/*
* Read in the Ifile; we'll be using it a lot.
* XXX If the Ifile is corrupted we are in bad shape. We need to
* XXX run through the segment headers of the entire disk to
* XXX reconstruct the inode table, then pretend all segments are
* XXX dirty while we do the rest.
*/
ivp = fs->lfs_ivnode;
maxino = ((lfs_dino_getsize(fs, VTOI(ivp)->i_din) - (lfs_sb_getcleansz(fs) + lfs_sb_getsegtabsz(fs))
* lfs_sb_getbsize(fs)) / lfs_sb_getbsize(fs)) * lfs_sb_getifpb(fs);
if (debug)
pwarn("maxino = %llu\n", (unsigned long long)maxino);
for (i = 0; i < lfs_dino_getsize(fs, VTOI(ivp)->i_din); i += lfs_sb_getbsize(fs)) {
bread(ivp, i >> lfs_sb_getbshift(fs), lfs_sb_getbsize(fs), 0, &bp);
/* XXX check B_ERROR */
brelse(bp, 0);
}
/*
* allocate and initialize the necessary maps
*/
din_table = ecalloc(maxino, sizeof(*din_table));
seg_table = ecalloc(lfs_sb_getnseg(fs), sizeof(SEGUSE));
/* Get segment flags */
for (i = 0; i < lfs_sb_getnseg(fs); i++) {
LFS_SEGENTRY(sup, fs, i, bp);
seg_table[i].su_flags = sup->su_flags & ~SEGUSE_ACTIVE;
if (preen)
seg_table[i].su_nbytes = sup->su_nbytes;
brelse(bp, 0);
}
/* Initialize Ifile entry */
din_table[LFS_IFILE_INUM] = lfs_sb_getidaddr(fs);
seg_table[lfs_dtosn(fs, lfs_sb_getidaddr(fs))].su_nbytes += DINOSIZE(fs);
#ifndef VERBOSE_BLOCKMAP
bmapsize = roundup(howmany(maxfsblock, NBBY), sizeof(int16_t));
blockmap = ecalloc(bmapsize, sizeof(char));
#else
blockmap = ecalloc(maxfsblock, sizeof(ino_t));
#endif
statemap = ecalloc(maxino, sizeof(char));
typemap = ecalloc(maxino, sizeof(char));
lncntp = ecalloc(maxino, sizeof(int16_t));
if (preen) {
n_files = lfs_sb_getnfiles(fs);
n_blks = lfs_sb_getdsize(fs) - lfs_sb_getbfree(fs);
numdirs = maxino;
inplast = 0;
listmax = numdirs + 10;
inpsort = ecalloc(listmax, sizeof(struct inoinfo *));
inphead = ecalloc(numdirs, sizeof(struct inoinfo *));
}
return (1);
ckfini(0);
return (0);
}
int
setup(const char *dev)
{
long bmapsize;
struct stat statb;
int doskipclean;
u_int64_t maxfilesize;
int open_flags;
struct uvnode *ivp;
struct ubuf *bp;
int i, isdirty;
long sn, curseg;
SEGUSE *sup;
havesb = 0;
doskipclean = skipclean;
if (stat(dev, &statb) < 0) {
pfatal("Can't stat %s: %s\n", dev, strerror(errno));
return (0);
}
if (!S_ISCHR(statb.st_mode) && skipclean) {
pfatal("%s is not a character device", dev);
if (reply("CONTINUE") == 0)
return (0);
}
if (nflag)
open_flags = O_RDONLY;
else
open_flags = O_RDWR;
if ((fsreadfd = open(dev, open_flags)) < 0) {
pfatal("Can't open %s: %s\n", dev, strerror(errno));
return (0);
}
if (nflag) {
if (preen)
pfatal("NO WRITE ACCESS");
printf("** %s (NO WRITE)\n", dev);
quiet = 0;
} else if (!preen && !quiet)
printf("** %s\n", dev);
fsmodified = 0;
lfdir = 0;
/* Initialize time in case we have to write */
time(&write_time);
bufinit(0); /* XXX we could make a better guess */
fs = lfs_init(fsreadfd, bflag, idaddr, 0, debug);
if (fs == NULL) {
if (preen)
printf("%s: ", cdevname());
errexit("BAD SUPER BLOCK OR IFILE INODE NOT FOUND");
}
/* Resize buffer cache now that we have a superblock to guess from. */
bufrehash((fs->lfs_segtabsz + maxino / fs->lfs_ifpb) << 4);
if (fs->lfs_pflags & LFS_PF_CLEAN) {
if (doskipclean) {
if (!quiet)
pwarn("%sile system is clean; not checking\n",
preen ? "f" : "** F");
return (-1);
}
if (!preen)
pwarn("** File system is already clean\n");
}
if (idaddr) {
daddr_t tdaddr;
SEGSUM *sp;
FINFO *fp;
int bc;
if (debug)
pwarn("adjusting offset, serial for -i 0x%lx\n",
(unsigned long)idaddr);
tdaddr = lfs_sntod(fs, lfs_dtosn(fs, idaddr));
if (lfs_sntod(fs, lfs_dtosn(fs, tdaddr)) == tdaddr) {
if (tdaddr == fs->lfs_start)
tdaddr += lfs_btofsb(fs, LFS_LABELPAD);
for (i = 0; i < LFS_MAXNUMSB; i++) {
if (fs->lfs_sboffs[i] == tdaddr)
tdaddr += lfs_btofsb(fs, LFS_SBPAD);
if (fs->lfs_sboffs[i] > tdaddr)
break;
}
}
fs->lfs_offset = tdaddr;
if (debug)
pwarn("begin with offset/serial 0x%x/%d\n",
(int)fs->lfs_offset, (int)fs->lfs_serial);
while (tdaddr < idaddr) {
bread(fs->lfs_devvp, LFS_FSBTODB(fs, tdaddr),
fs->lfs_sumsize,
NULL, 0, &bp);
sp = (SEGSUM *)bp->b_data;
if (sp->ss_sumsum != cksum(&sp->ss_datasum,
fs->lfs_sumsize -
sizeof(sp->ss_sumsum))) {
brelse(bp, 0);
if (debug)
printf("bad cksum at %x\n",
(unsigned)tdaddr);
break;
}
fp = (FINFO *)(sp + 1);
bc = howmany(sp->ss_ninos, LFS_INOPB(fs)) <<
(fs->lfs_version > 1 ? fs->lfs_ffshift :
fs->lfs_bshift);
for (i = 0; i < sp->ss_nfinfo; i++) {
bc += fp->fi_lastlength + ((fp->fi_nblocks - 1)
<< fs->lfs_bshift);
fp = (FINFO *)(fp->fi_blocks + fp->fi_nblocks);
}
tdaddr += lfs_btofsb(fs, bc) + 1;
fs->lfs_offset = tdaddr;
fs->lfs_serial = sp->ss_serial + 1;
brelse(bp, 0);
}
/*
* Set curseg, nextseg appropriately -- inlined from
* lfs_newseg()
*/
curseg = lfs_dtosn(fs, fs->lfs_offset);
fs->lfs_curseg = lfs_sntod(fs, curseg);
for (sn = curseg + fs->lfs_interleave;;) {
sn = (sn + 1) % fs->lfs_nseg;
if (sn == curseg)
errx(1, "init: no clean segments");
LFS_SEGENTRY(sup, fs, sn, bp);
isdirty = sup->su_flags & SEGUSE_DIRTY;
brelse(bp, 0);
if (!isdirty)
break;
}
/* Skip superblock if necessary */
for (i = 0; i < LFS_MAXNUMSB; i++)
if (fs->lfs_offset == fs->lfs_sboffs[i])
fs->lfs_offset += lfs_btofsb(fs, LFS_SBPAD);
++fs->lfs_nactive;
fs->lfs_nextseg = lfs_sntod(fs, sn);
if (debug) {
pwarn("offset = 0x%" PRIx32 ", serial = %" PRId64 "\n",
fs->lfs_offset, fs->lfs_serial);
pwarn("curseg = %" PRIx32 ", nextseg = %" PRIx32 "\n",
fs->lfs_curseg, fs->lfs_nextseg);
}
if (!nflag && !skipclean) {
fs->lfs_idaddr = idaddr;
fsmodified = 1;
sbdirty();
}
}
if (debug) {
pwarn("idaddr = 0x%lx\n", idaddr ? (unsigned long)idaddr :
(unsigned long)fs->lfs_idaddr);
pwarn("dev_bsize = %lu\n", dev_bsize);
pwarn("lfs_bsize = %lu\n", (unsigned long) fs->lfs_bsize);
pwarn("lfs_fsize = %lu\n", (unsigned long) fs->lfs_fsize);
pwarn("lfs_frag = %lu\n", (unsigned long) fs->lfs_frag);
pwarn("lfs_inopb = %lu\n", (unsigned long) fs->lfs_inopb);
}
if (fs->lfs_version == 1)
maxfsblock = fs->lfs_size * (fs->lfs_bsize / dev_bsize);
else
maxfsblock = fs->lfs_size;
maxfilesize = calcmaxfilesize(fs->lfs_bshift);
if (/* fs->lfs_minfree < 0 || */ fs->lfs_minfree > 99) {
pfatal("IMPOSSIBLE MINFREE=%d IN SUPERBLOCK",
fs->lfs_minfree);
if (reply("SET TO DEFAULT") == 1) {
fs->lfs_minfree = 10;
sbdirty();
}
}
if (fs->lfs_bmask != fs->lfs_bsize - 1) {
pwarn("INCORRECT BMASK=0x%x IN SUPERBLOCK (SHOULD BE 0x%x)",
(unsigned int) fs->lfs_bmask,
(unsigned int) fs->lfs_bsize - 1);
fs->lfs_bmask = fs->lfs_bsize - 1;
if (preen)
printf(" (FIXED)\n");
if (preen || reply("FIX") == 1) {
sbdirty();
}
}
if (fs->lfs_ffmask != fs->lfs_fsize - 1) {
pwarn("INCORRECT FFMASK=%" PRId64 " IN SUPERBLOCK",
fs->lfs_ffmask);
fs->lfs_ffmask = fs->lfs_fsize - 1;
if (preen)
printf(" (FIXED)\n");
if (preen || reply("FIX") == 1) {
sbdirty();
}
}
if (fs->lfs_fbmask != (1 << fs->lfs_fbshift) - 1) {
pwarn("INCORRECT FBMASK=%" PRId64 " IN SUPERBLOCK",
fs->lfs_fbmask);
fs->lfs_fbmask = (1 << fs->lfs_fbshift) - 1;
if (preen)
printf(" (FIXED)\n");
if (preen || reply("FIX") == 1) {
sbdirty();
}
}
if (fs->lfs_maxfilesize != maxfilesize) {
pwarn(
"INCORRECT MAXFILESIZE=%llu IN SUPERBLOCK (SHOULD BE %llu WITH BSHIFT %d)",
(unsigned long long) fs->lfs_maxfilesize,
(unsigned long long) maxfilesize, (int)fs->lfs_bshift);
if (preen)
printf(" (FIXED)\n");
if (preen || reply("FIX") == 1) {
fs->lfs_maxfilesize = maxfilesize;
sbdirty();
}
}
if (fs->lfs_maxsymlinklen != ULFS1_MAXSYMLINKLEN) {
pwarn("INCORRECT MAXSYMLINKLEN=%d IN SUPERBLOCK",
fs->lfs_maxsymlinklen);
fs->lfs_maxsymlinklen = ULFS1_MAXSYMLINKLEN;
if (preen)
printf(" (FIXED)\n");
if (preen || reply("FIX") == 1) {
sbdirty();
}
}
/*
* Read in the Ifile; we'll be using it a lot.
* XXX If the Ifile is corrupted we are in bad shape. We need to
* XXX run through the segment headers of the entire disk to
* XXX reconstruct the inode table, then pretend all segments are
* XXX dirty while we do the rest.
*/
ivp = fs->lfs_ivnode;
maxino = ((VTOI(ivp)->i_ffs1_size - (fs->lfs_cleansz + fs->lfs_segtabsz)
* fs->lfs_bsize) / fs->lfs_bsize) * fs->lfs_ifpb;
if (debug)
pwarn("maxino = %llu\n", (unsigned long long)maxino);
for (i = 0; i < VTOI(ivp)->i_ffs1_size; i += fs->lfs_bsize) {
bread(ivp, i >> fs->lfs_bshift, fs->lfs_bsize, NOCRED, 0, &bp);
/* XXX check B_ERROR */
brelse(bp, 0);
}
/*
* allocate and initialize the necessary maps
*/
din_table = ecalloc(maxino, sizeof(*din_table));
seg_table = ecalloc(fs->lfs_nseg, sizeof(SEGUSE));
/* Get segment flags */
for (i = 0; i < fs->lfs_nseg; i++) {
LFS_SEGENTRY(sup, fs, i, bp);
seg_table[i].su_flags = sup->su_flags & ~SEGUSE_ACTIVE;
if (preen)
seg_table[i].su_nbytes = sup->su_nbytes;
brelse(bp, 0);
}
/* Initialize Ifile entry */
din_table[fs->lfs_ifile] = fs->lfs_idaddr;
seg_table[lfs_dtosn(fs, fs->lfs_idaddr)].su_nbytes += LFS_DINODE1_SIZE;
#ifndef VERBOSE_BLOCKMAP
bmapsize = roundup(howmany(maxfsblock, NBBY), sizeof(int16_t));
blockmap = ecalloc(bmapsize, sizeof(char));
#else
bmapsize = maxfsblock * sizeof(ino_t);
blockmap = ecalloc(maxfsblock, sizeof(ino_t));
#endif
statemap = ecalloc(maxino, sizeof(char));
typemap = ecalloc(maxino, sizeof(char));
lncntp = ecalloc(maxino, sizeof(int16_t));
if (preen) {
n_files = fs->lfs_nfiles;
n_blks = fs->lfs_dsize - fs->lfs_bfree;
numdirs = maxino;
inplast = 0;
listmax = numdirs + 10;
inpsort = ecalloc(listmax, sizeof(struct inoinfo *));
inphead = ecalloc(numdirs, sizeof(struct inoinfo *));
}
return (1);
ckfini(0);
return (0);
}
int
make_lfs(int devfd, uint secsize, struct dkwedge_info *dkw, int minfree,
int block_size, int frag_size, int seg_size, int minfreeseg,
int resvseg, int version, daddr_t start, int ibsize, int interleave,
u_int32_t roll_id)
{
struct ufs1_dinode *dip; /* Pointer to a disk inode */
CLEANERINFO *cip; /* Segment cleaner information table */
IFILE *ip; /* Pointer to array of ifile structures */
IFILE_V1 *ip_v1 = NULL;
struct lfs *fs; /* Superblock */
SEGUSE *segp; /* Segment usage table */
daddr_t sb_addr; /* Address of superblocks */
daddr_t seg_addr; /* Address of current segment */
int bsize; /* Block size */
int fsize; /* Fragment size */
int db_per_blk; /* Disk blocks per file block */
int i, j;
int sb_interval; /* number of segs between super blocks */
int ssize; /* Segment size */
double fssize;
int warned_segtoobig=0;
int label_fsb, sb_fsb;
int curw, ww;
char tbuf[BUFSIZ];
struct ubuf *bp;
struct uvnode *vp, *save_devvp;
int bb, ubb, dmeta, labelskew;
u_int64_t tsepb, tnseg;
/*
* Initialize buffer cache. Use a ballpark guess of the length of
* the segment table for the number of hash chains.
*/
tnseg = dkw->dkw_size / ((seg_size ? seg_size : DFL_LFSSEG) / secsize);
tsepb = (block_size ? block_size : DFL_LFSBLOCK) / sizeof(SEGSUM);
if (tnseg == 0)
fatal("zero size partition");
bufinit(tnseg / tsepb);
/* Initialize LFS subsystem with blank superblock and ifile. */
fs = lfs_init(devfd, start, (ufs_daddr_t)0, 1, 1/* XXX debug*/);
save_devvp = fs->lfs_devvp;
vp = fs->lfs_ivnode;
*fs = lfs_default;
fs->lfs_ivnode = vp;
fs->lfs_devvp = save_devvp;
/* Set version first of all since it is used to compute other fields */
fs->lfs_version = version;
/* If partition is not an LFS partition, warn that that is the case */
if (strcmp(dkw->dkw_ptype, DKW_PTYPE_LFS) != 0) {
fatal("partition label indicated fs type \"%s\", "
"expected \"%s\"", dkw->dkw_ptype, DKW_PTYPE_LFS);
}
if (!(bsize = block_size))
bsize = DFL_LFSBLOCK;
if (!(fsize = frag_size))
fsize = DFL_LFSFRAG;
if (!(ssize = seg_size)) {
ssize = DFL_LFSSEG;
}
if (version > 1) {
if (ibsize == 0)
ibsize = fsize;
if (ibsize <= 0 || ibsize % fsize)
fatal("illegal inode block size: %d\n", ibsize);
} else if (ibsize && ibsize != bsize)
fatal("cannot specify inode block size when version == 1\n");
/* Sanity check: fsize<=bsize<ssize */
if (fsize > bsize) {
/* Only complain if fsize was explicitly set */
if(frag_size)
fatal("fragment size must be <= block size %d", bsize);
fsize = bsize;
}
if (bsize >= ssize) {
/* Only fatal if ssize was explicitly set */
if(seg_size)
fatal("block size must be < segment size");
warnx("%s: disklabel segment size (%d) too small, using default (%d)",
progname, ssize, DFL_LFSSEG);
ssize = DFL_LFSSEG;
}
if (start < 0 || start >= dkw->dkw_size)
fatal("filesystem offset %ld out of range", (long)start);
if (version == 1) {
if (start)
warnx("filesystem offset ignored for version 1 filesystem");
start = LFS_LABELPAD / secsize;
}
tryagain:
/* Modify parts of superblock overridden by command line arguments */
if (bsize != DFL_LFSBLOCK || fsize != DFL_LFSFRAG) {
fs->lfs_bshift = lfs_log2(bsize);
if (1 << fs->lfs_bshift != bsize)
fatal("%d: block size not a power of 2", bsize);
fs->lfs_bsize = bsize;
fs->lfs_fsize = fsize;
fs->lfs_bmask = bsize - 1;
fs->lfs_ffmask = fsize - 1;
fs->lfs_ffshift = lfs_log2(fsize);
if (1 << fs->lfs_ffshift != fsize)
fatal("%d: frag size not a power of 2", fsize);
fs->lfs_frag = numfrags(fs, bsize);
fs->lfs_fbmask = fs->lfs_frag - 1;
fs->lfs_fbshift = lfs_log2(fs->lfs_frag);
fs->lfs_ifpb = bsize / sizeof(IFILE);
/* XXX ondisk32 */
fs->lfs_nindir = bsize / sizeof(int32_t);
}
if (fs->lfs_version == 1) {
fs->lfs_sumsize = LFS_V1_SUMMARY_SIZE;
fs->lfs_segshift = lfs_log2(ssize);
if (1 << fs->lfs_segshift != ssize)
fatal("%d: segment size not power of 2", ssize);
fs->lfs_segmask = ssize - 1;
fs->lfs_ifpb = fs->lfs_bsize / sizeof(IFILE_V1);
fs->lfs_ibsize = fs->lfs_bsize;
fs->lfs_sepb = bsize / sizeof(SEGUSE_V1);
fs->lfs_ssize = ssize >> fs->lfs_bshift;
} else {