/// get_used_block - get FAT used blocks
static unsigned long long get_used_block()
{
unsigned long long block, bused = 0, bfree = 0;
int i = 0;
unsigned char *p;
/// read group
while ((i = cgread(&disk)) != 0) {
log_mesg(2, 0, 0, fs_opt.debug, "%s: \ncg = %d\n", __FILE__, disk.d_lcg);
log_mesg(2, 0, 0, fs_opt.debug, "%s: blocks = %i\n", __FILE__, acg.cg_ndblk);
p = cg_blksfree(&acg);
for (block = 0; block < acg.cg_ndblk; block++){
if (isset(p, block)) {
bfree++;
} else {
bused++;
}
}
}
log_mesg(1, 0, 0, fs_opt.debug, "%s: total used = %lli, total free = %lli\n", __FILE__, bused, bfree);
return bused;
}
static ufs2_daddr_t journal_balloc( void ) {
ufs2_daddr_t blk;
struct cg *cgp;
int valid;
static int contig = 1;
cgp = &disk.d_cg;
for ( ;; ) {
blk = cgballoc( &disk );
if ( blk > 0 ) break;
if ( cgwrite( &disk ) < 0 ) {
warn( "Failed to write updated cg" );
return ( -1 );
}
while ( ( valid = cgread( &disk ) ) == 1 ) {
if ( cgp->cg_cs.cs_nbfree > 256 * 1024 ) break;
if ( contig == 0 && cgp->cg_cs.cs_nbfree ) break;
}
if ( valid ) continue;
if ( contig ) {
contig = 0;
disk.d_ccg = 0;
warnx( "Journal file fragmented." );
continue;
}
warnx( "Failed to find sufficient free blocks for the journal" );
return -1;
}
if ( bwrite( &disk, fsbtodb( &sblock, blk ), clrbuf,
sblock.fs_bsize ) <= 0 ) {
warn( "Failed to initialize new block" );
return -1;
}
return ( blk );
}
static ufs2_daddr_t
journal_balloc(void)
{
ufs2_daddr_t blk;
struct cg *cgp;
int valid;
static int contig = 1;
cgp = &disk.d_cg;
for (;;) {
blk = cgballoc(&disk);
if (blk > 0)
break;
/*
* If we failed to allocate a block from this cg, move to
* the next.
*/
if (cgwrite(&disk) < 0) {
warn("Failed to write updated cg");
return (-1);
}
while ((valid = cgread(&disk)) == 1) {
/*
* Try to minimize fragmentation by requiring a minimum
* number of blocks present.
*/
if (cgp->cg_cs.cs_nbfree > 256 * 1024)
break;
if (contig == 0 && cgp->cg_cs.cs_nbfree)
break;
}
if (valid)
continue;
/*
* Try once through looking only for large contiguous regions
* and again taking any space we can find.
*/
if (contig) {
contig = 0;
disk.d_ccg = 0;
warnx("Journal file fragmented.");
continue;
}
warnx("Failed to find sufficient free blocks for the journal");
return -1;
}
if (bwrite(&disk, fsbtodb(&sblock, blk), clrbuf,
sblock.fs_bsize) <= 0) {
warn("Failed to initialize new block");
return -1;
}
return (blk);
}
int
dumpfreespace(const char *name, int fflag)
{
int i;
while ((i = cgread(&disk)) != 0) {
if (i == -1)
goto err;
dumpfreespacecg(fflag);
}
return (0);
err:
ufserr(name);
return (1);
}
/// readbitmap - read bitmap
extern void readbitmap(char* device, image_head image_hdr, char* bitmap, int pui)
{
unsigned long long total_block, block, bused = 0, bfree = 0;
int done = 0, i = 0, start = 0, bit_size = 1;
char* p;
fs_open(device);
/// init progress
progress_bar bprog; /// progress_bar structure defined in progress.h
progress_init(&bprog, start, image_hdr.totalblock, bit_size);
total_block = 0;
/// read group
while ((i = cgread(&disk)) != 0) {
log_mesg(2, 0, 0, fs_opt.debug, "%s: \ncg = %d\n", __FILE__, disk.d_lcg);
log_mesg(2, 0, 0, fs_opt.debug, "%s: blocks = %i\n", __FILE__, acg.cg_ndblk);
p = cg_blksfree(&acg);
for (block = 0; block < acg.cg_ndblk; block++) {
if (isset(p, block)) {
bitmap[total_block] = 0;
bfree++;
log_mesg(3, 0, 0, fs_opt.debug, "%s: bitmap is free %lli\n", __FILE__, block);
} else {
bitmap[total_block] = 1;
bused++;
log_mesg(3, 0, 0, fs_opt.debug, "%s: bitmap is used %lli\n", __FILE__, block);
}
total_block++;
update_pui(&bprog, total_block ,done);
}
log_mesg(1, 0, 0, fs_opt.debug, "%s: read bitmap done\n", __FILE__);
}
fs_close();
log_mesg(1, 0, 0, fs_opt.debug, "%s: total used = %lli, total free = %lli\n", __FILE__, bused, bfree);
done = 1;
update_pui(&bprog, 1, done);
}
static int
journal_alloc(int64_t size)
{
struct ufs1_dinode *dp1;
struct ufs2_dinode *dp2;
ufs2_daddr_t blk;
void *ip;
struct cg *cgp;
int resid;
ino_t ino;
int blks;
int mode;
time_t utime;
int i;
cgp = &disk.d_cg;
ino = 0;
/*
* If the journal file exists we can't allocate it.
*/
ino = journal_findfile();
if (ino == (ino_t)-1)
return (-1);
if (ino > 0) {
warnx("Journal file %s already exists, please remove.",
SUJ_FILE);
return (-1);
}
/*
* If the user didn't supply a size pick one based on the filesystem
* size constrained with hardcoded MIN and MAX values. We opt for
* 1/1024th of the filesystem up to MAX but not exceeding one CG and
* not less than the MIN.
*/
if (size == 0) {
size = (sblock.fs_size * sblock.fs_bsize) / 1024;
size = MIN(SUJ_MAX, size);
if (size / sblock.fs_fsize > sblock.fs_fpg)
size = sblock.fs_fpg * sblock.fs_fsize;
size = MAX(SUJ_MIN, size);
/* fsck does not support fragments in journal files. */
size = roundup(size, sblock.fs_bsize);
}
resid = blocks = size / sblock.fs_bsize;
if (sblock.fs_cstotal.cs_nbfree < blocks) {
warn("Insufficient free space for %jd byte journal", size);
return (-1);
}
/*
* Find a cg with enough blocks to satisfy the journal
* size. Presently the journal does not span cgs.
*/
while (cgread(&disk) == 1) {
if (cgp->cg_cs.cs_nifree == 0)
continue;
ino = cgialloc(&disk);
if (ino <= 0)
break;
printf("Using inode %ju in cg %d for %jd byte journal\n",
(uintmax_t)ino, cgp->cg_cgx, size);
if (getino(&disk, &ip, ino, &mode) != 0) {
warn("Failed to get allocated inode");
sbdirty();
goto out;
}
/*
* We leave fields unrelated to the number of allocated
* blocks and size uninitialized. This causes legacy
* fsck implementations to clear the inode.
*/
dp2 = ip;
dp1 = ip;
time(&utime);
if (sblock.fs_magic == FS_UFS1_MAGIC) {
bzero(dp1, sizeof(*dp1));
dp1->di_size = size;
dp1->di_mode = IFREG | IREAD;
dp1->di_nlink = 1;
dp1->di_flags = SF_IMMUTABLE | SF_NOUNLINK | UF_NODUMP;
dp1->di_atime = utime;
dp1->di_mtime = utime;
dp1->di_ctime = utime;
} else {
bzero(dp2, sizeof(*dp2));
dp2->di_size = size;
dp2->di_mode = IFREG | IREAD;
dp2->di_nlink = 1;
dp2->di_flags = SF_IMMUTABLE | SF_NOUNLINK | UF_NODUMP;
dp2->di_atime = utime;
dp2->di_mtime = utime;
dp2->di_ctime = utime;
dp2->di_birthtime = utime;
}
for (i = 0; i < NDADDR && resid; i++, resid--) {
blk = journal_balloc();
if (blk <= 0)
goto out;
if (sblock.fs_magic == FS_UFS1_MAGIC) {
dp1->di_db[i] = blk;
dp1->di_blocks++;
} else {
dp2->di_db[i] = blk;
dp2->di_blocks++;
}
}
for (i = 0; i < NIADDR && resid; i++) {
blk = journal_balloc();
if (blk <= 0)
goto out;
blks = indir_fill(blk, i, &resid) + 1;
if (blks <= 0) {
sbdirty();
goto out;
}
if (sblock.fs_magic == FS_UFS1_MAGIC) {
dp1->di_ib[i] = blk;
dp1->di_blocks += blks;
} else {
dp2->di_ib[i] = blk;
dp2->di_blocks += blks;
}
}
if (sblock.fs_magic == FS_UFS1_MAGIC)
dp1->di_blocks *= sblock.fs_bsize / disk.d_bsize;
else
dp2->di_blocks *= sblock.fs_bsize / disk.d_bsize;
if (putino(&disk) < 0) {
warn("Failed to write inode");
sbdirty();
return (-1);
}
if (cgwrite(&disk) < 0) {
warn("Failed to write updated cg");
sbdirty();
return (-1);
}
if (journal_insertfile(ino) < 0) {
sbdirty();
return (-1);
}
sblock.fs_sujfree = 0;
return (0);
}
warnx("Insufficient free space for the journal.");
out:
return (-1);
}
int
dumpfs(const char *name)
{
time_t fstime;
int64_t fssize;
int32_t fsflags;
int i;
switch (disk.d_ufs) {
case 2:
fssize = afs.fs_size;
fstime = afs.fs_time;
printf("magic\t%x (UFS2)\ttime\t%s",
afs.fs_magic, ctime(&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%d\tsize\t%jd\tblocks\t%jd\n",
afs.fs_ncg, (intmax_t)fssize, (intmax_t)afs.fs_dsize);
break;
case 1:
fssize = afs.fs_old_size;
fstime = afs.fs_old_time;
printf("magic\t%x (UFS1)\ttime\t%s",
afs.fs_magic, ctime(&fstime));
printf("id\t[ %08x %08x ]\n", afs.fs_id[0], afs.fs_id[1]);
printf("ncg\t%d\tsize\t%jd\tblocks\t%jd\n",
afs.fs_ncg, (intmax_t)fssize, (intmax_t)afs.fs_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 (disk.d_ufs) {
case 2:
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%d\tunrefs\t%jd\n",
afs.fs_fpg / afs.fs_frag, afs.fs_fpg, afs.fs_ipg,
(intmax_t)afs.fs_unrefs);
printf("nindir\t%d\tinopb\t%d\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 1:
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_old_cstotal.cs_nbfree, afs.fs_old_cstotal.cs_ndir,
afs.fs_old_cstotal.cs_nifree, afs.fs_old_cstotal.cs_nffree);
printf("cpg\t%d\tbpg\t%d\tfpg\t%d\tipg\t%d\n",
afs.fs_old_cpg, afs.fs_fpg / afs.fs_frag, afs.fs_fpg,
afs.fs_ipg);
printf("nindir\t%d\tinopb\t%d\tnspf\t%d\tmaxfilesize\t%ju\n",
afs.fs_nindir, afs.fs_inopb, afs.fs_old_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_old_cgoffset,
afs.fs_old_cgmask);
printf("csaddr\t%d\tcssize\t%d\n",
afs.fs_old_csaddr, afs.fs_cssize);
printf("rotdelay %dms\trps\t%d\ttrackskew %d\tinterleave %d\n",
afs.fs_old_rotdelay, afs.fs_old_rps, afs.fs_old_trackskew,
afs.fs_old_interleave);
printf("nsect\t%d\tnpsect\t%d\tspc\t%d\n",
afs.fs_old_nsect, afs.fs_old_npsect, afs.fs_old_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 %d\tavgfilesize %d\n",
afs.fs_avgfpdir, afs.fs_avgfilesize);
printf("flags\t");
if (afs.fs_old_flags & FS_FLAGS_UPDATED)
fsflags = afs.fs_flags;
else
fsflags = afs.fs_old_flags;
if (fsflags == 0)
printf("none");
if (fsflags & FS_UNCLEAN)
printf("unclean ");
if (fsflags & FS_DOSOFTDEP)
printf("soft-updates%s ", (fsflags & FS_SUJ) ? "+journal" : "");
if (fsflags & FS_NEEDSFSCK)
printf("needs fsck run ");
if (fsflags & FS_INDEXDIRS)
printf("indexed directories ");
if (fsflags & FS_ACLS)
printf("acls ");
if (fsflags & FS_MULTILABEL)
printf("multilabel ");
if (fsflags & FS_GJOURNAL)
printf("gjournal ");
if (fsflags & FS_FLAGS_UPDATED)
printf("fs_flags expanded ");
if (fsflags & FS_NFS4ACLS)
printf("nfsv4acls ");
if (fsflags & FS_TRIM)
printf("trim ");
fsflags &= ~(FS_UNCLEAN | FS_DOSOFTDEP | FS_NEEDSFSCK | FS_INDEXDIRS |
FS_ACLS | FS_MULTILABEL | FS_GJOURNAL | FS_FLAGS_UPDATED |
FS_NFS4ACLS | FS_SUJ | FS_TRIM);
if (fsflags != 0)
printf("unknown flags (%#x)", fsflags);
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);
if (bread(&disk, fsbtodb(&afs, afs.fs_csaddr), afs.fs_csp, afs.fs_cssize) == -1)
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 (fssize % afs.fs_fpg) {
if (disk.d_ufs == 1)
printf("cylinders in last group %d\n",
howmany(afs.fs_old_size % afs.fs_fpg,
afs.fs_old_spc / afs.fs_old_nspf));
printf("blocks in last group %ld\n\n",
(long)((fssize % afs.fs_fpg) / afs.fs_frag));
}
while ((i = cgread(&disk)) != 0) {
if (i == -1 || dumpcg())
goto err;
}
return (0);
err: ufserr(name);
return (1);
}
static int journal_alloc( int64_t size ) {
struct ufs1_dinode *dp1;
struct ufs2_dinode *dp2;
ufs2_daddr_t blk;
void *ip;
struct cg *cgp;
int resid;
ino_t ino;
int blks;
int mode;
time_t utime;
int i;
cgp = &disk.d_cg;
ino = 0;
ino = journal_findfile();
if ( ino == ( ino_t ) - 1 ) return ( -1 );
if ( ino > 0 ) {
warnx( "Journal file %s already exists, please remove.", SUJ_FILE );
return ( -1 );
}
if ( size == 0 ) {
size = ( sblock.fs_size * sblock.fs_bsize ) / 1024;
size = MIN( SUJ_MAX, size );
if ( size / sblock.fs_fsize > sblock.fs_fpg ) size = sblock.fs_fpg * sblock.fs_fsize;
size = MAX( SUJ_MIN, size );
size = roundup( size, sblock.fs_bsize );
}
resid = blocks = size / sblock.fs_bsize;
if ( sblock.fs_cstotal.cs_nbfree < blocks ) {
warn( "Insufficient free space for %jd byte journal", size );
return ( -1 );
}
while ( cgread( &disk ) == 1 ) {
if ( cgp->cg_cs.cs_nifree == 0 ) continue;
ino = cgialloc( &disk );
if ( ino <= 0 ) break;
printf( "Using inode %ju in cg %d for %jd byte journal\n", (uintmax_t) ino, cgp->cg_cgx, size );
if ( getino( &disk, &ip, ino, &mode ) != 0 ) {
warn( "Failed to get allocated inode" );
sbdirty();
goto out;
}
dp2 = ip;
dp1 = ip;
time( &utime );
if ( sblock.fs_magic == FS_UFS1_MAGIC ) {
bzero( dp1, sizeof( *dp1 ) );
dp1->di_size = size;
dp1->di_mode = IFREG | IREAD;
dp1->di_nlink = 1;
dp1->di_flags = SF_IMMUTABLE | SF_NOUNLINK | UF_NODUMP;
dp1->di_atime = utime;
dp1->di_mtime = utime;
dp1->di_ctime = utime;
} else {
bzero( dp2, sizeof( *dp2 ) );
dp2->di_size = size;
dp2->di_mode = IFREG | IREAD;
dp2->di_nlink = 1;
dp2->di_flags = SF_IMMUTABLE | SF_NOUNLINK | UF_NODUMP;
dp2->di_atime = utime;
dp2->di_mtime = utime;
dp2->di_ctime = utime;
dp2->di_birthtime = utime;
}
for ( i = 0; i < NDADDR && resid; i++, resid-- ) {
blk = journal_balloc();
if ( blk <= 0 ) goto out;
if ( sblock.fs_magic == FS_UFS1_MAGIC ) {
dp1->di_db[i] = blk;
dp1->di_blocks++;
} else {
dp2->di_db[i] = blk;
dp2->di_blocks++;
}
}
for ( i = 0; i < NIADDR && resid; i++ ) {
blk = journal_balloc();
if ( blk <= 0 ) goto out;
blks = indir_fill( blk, i, &resid ) + 1;
if ( blks <= 0 ) {
sbdirty();
goto out;
}
if ( sblock.fs_magic == FS_UFS1_MAGIC ) {
dp1->di_ib[i] = blk;
dp1->di_blocks += blks;
} else {
dp2->di_ib[i] = blk;
dp2->di_blocks += blks;
}
}
if ( sblock.fs_magic == FS_UFS1_MAGIC ) dp1->di_blocks *= sblock.fs_bsize / disk.d_bsize;
else dp2->di_blocks *= sblock.fs_bsize / disk.d_bsize;
if ( putino( &disk ) < 0 ) {
warn( "Failed to write inode" );
sbdirty();
return ( -1 );
}
if ( cgwrite( &disk ) < 0 ) {
warn( "Failed to write updated cg" );
sbdirty();
return ( -1 );
}
if ( journal_insertfile( ino ) < 0 ) {
sbdirty();
return ( -1 );
}
sblock.fs_sujfree = 0;
return ( 0 );
}
warnx( "Insufficient free space for the journal." );
out: return ( -1 );
}
