Ejemplo n.º 1
0
/*
 * Read indirect blocks, and pass the data blocks to be searched
 * as directories. Quit as soon as any entry is found that will
 * require the directory to be dumped.
 */
static int
dirindir(ufs1_ino_t ino, daddr_t blkno, int ind_level, long *filesize,
         long *tape_size, int nodump)
{
	int ret = 0;
	int i;
	daddr_t	idblk[MAXNINDIR];

	bread(fsbtodb(sblock, blkno), (char *)idblk, (int)sblock->fs_bsize);
	if (ind_level <= 0) {
		for (i = 0; *filesize > 0 && i < NINDIR(sblock); i++) {
			blkno = idblk[i];
			if (blkno != 0) {
				ret |= searchdir(ino, blkno, sblock->fs_bsize,
					*filesize, tape_size, nodump);
			}
			if (ret & HASDUMPEDFILE)
				*filesize = 0;
			else
				*filesize -= sblock->fs_bsize;
		}
		return (ret);
	}
	ind_level--;
	for (i = 0; *filesize > 0 && i < NINDIR(sblock); i++) {
		blkno = idblk[i];
		if (blkno != 0) {
			ret |= dirindir(ino, blkno, ind_level, filesize,
			    tape_size, nodump);
		}
	}
	return (ret);
}
Ejemplo n.º 2
0
/*
 * Read indirect blocks, and pass the data blocks to be searched
 * as directories. Quit as soon as any entry is found that will
 * require the directory to be dumped.
 */
static int
dirindir(ino_t ino, daddr64_t blkno, int ind_level, off_t *filesize)
{
	int ret = 0;
	int i;
	char idblk[MAXBSIZE];

	bread(fsbtodb(sblock, blkno), idblk, (int)sblock->fs_bsize);
	if (ind_level <= 0) {
		for (i = 0; *filesize > 0 && i < NINDIR(sblock); i++) {
			if (sblock->fs_magic == FS_UFS1_MAGIC)
				blkno = ((int32_t *)idblk)[i];
			else
				blkno = ((int64_t *)idblk)[i];
			if (blkno != 0)
				ret |= searchdir(ino, blkno, sblock->fs_bsize,
					*filesize);
			if (ret & HASDUMPEDFILE)
				*filesize = 0;
			else
				*filesize -= sblock->fs_bsize;
		}
		return (ret);
	}
	ind_level--;
	for (i = 0; *filesize > 0 && i < NINDIR(sblock); i++) {
		if (sblock->fs_magic == FS_UFS1_MAGIC)
			blkno = ((int32_t *)idblk)[i];
		else
			blkno = ((int64_t *)idblk)[i];
		if (blkno != 0)
			ret |= dirindir(ino, blkno, ind_level, filesize);
	}
	return (ret);
}
Ejemplo n.º 3
0
/*
 * Dump pass 2.
 *
 * Scan each directory on the filesystem to see if it has any modified
 * files in it. If it does, and has not already been added to the dump
 * list (because it was itself modified), then add it. If a directory
 * has not been modified itself, contains no modified files and has no
 * subdirectories, then it can be deleted from the dump list and from
 * the list of directories. By deleting it from the list of directories,
 * its parent may now qualify for the same treatment on this or a later
 * pass using this algorithm.
 */
int
mapdirs(ino_t maxino, off_t *tapesize)
{
	union dinode *dp;
	int i, isdir;
	char *map;
	ino_t ino;
	union dinode di;
	off_t filesize;
	int ret, change = 0;

	isdir = 0;		/* XXX just to get gcc to shut up */
	for (map = dumpdirmap, ino = 1; ino < maxino; ino++) {
		if (((ino - 1) % NBBY) == 0)	/* map is offset by 1 */
			isdir = *map++;
		else
			isdir >>= 1;
		if ((isdir & 1) == 0 || TSTINO(ino, dumpinomap))
			continue;
		dp = getino(ino, &i);
		/*
		 * inode buf may change in searchdir().
		 */
		if (sblock->fs_magic == FS_UFS1_MAGIC)
			di.dp1 = dp->dp1;
		else
			di.dp2 = dp->dp2;
		filesize = (off_t)DIP(dp, di_size);
		for (ret = 0, i = 0; filesize > 0 && i < NDADDR; i++) {
			if (DIP(&di, di_db[i]) != 0)
				ret |= searchdir(ino, DIP(&di, di_db[i]),
				    sblksize(sblock, DIP(dp, di_size), i),
				    filesize);
			if (ret & HASDUMPEDFILE)
				filesize = 0;
			else
				filesize -= sblock->fs_bsize;
		}
		for (i = 0; filesize > 0 && i < NIADDR; i++) {
			if (DIP(&di, di_ib[i]) == 0)
				continue;
			ret |= dirindir(ino, DIP(&di, di_ib[i]), i, &filesize);
		}
		if (ret & HASDUMPEDFILE) {
			SETINO(ino, dumpinomap);
			*tapesize += blockest(dp);
			change = 1;
			continue;
		}
		if ((ret & HASSUBDIRS) == 0) {
			if (!TSTINO(ino, dumpinomap)) {
				CLRINO(ino, dumpdirmap);
				change = 1;
			}
		}
	}
	return (change);
}
Ejemplo n.º 4
0
/*
 * Read indirect blocks, and pass the data blocks to be searched
 * as directories. Quit as soon as any entry is found that will
 * require the directory to be dumped.
 */
static int
dirindir(
	ino_t ino,
	ufs2_daddr_t blkno,
	int ind_level,
	long *filesize,
	long *tapesize,
	int nodump,
	ino_t maxino)
{
	union {
		ufs1_daddr_t ufs1[MAXBSIZE / sizeof(ufs1_daddr_t)];
		ufs2_daddr_t ufs2[MAXBSIZE / sizeof(ufs2_daddr_t)];
	} idblk;
	int ret = 0;
	int i;

	bread(fsbtodb(sblock, blkno), (char *)&idblk, (int)sblock->fs_bsize);
	if (ind_level <= 0) {
		for (i = 0; *filesize > 0 && i < NINDIR(sblock); i++) {
			if (sblock->fs_magic == FS_UFS1_MAGIC)
				blkno = idblk.ufs1[i];
			else
				blkno = idblk.ufs2[i];
			if (blkno != 0)
				ret |= searchdir(ino, blkno, sblock->fs_bsize,
					*filesize, tapesize, nodump, maxino);
			if (ret & HASDUMPEDFILE)
				*filesize = 0;
			else
				*filesize -= sblock->fs_bsize;
		}
		return (ret);
	}
	ind_level--;
	for (i = 0; *filesize > 0 && i < NINDIR(sblock); i++) {
		if (sblock->fs_magic == FS_UFS1_MAGIC)
			blkno = idblk.ufs1[i];
		else
			blkno = idblk.ufs2[i];
		if (blkno != 0)
			ret |= dirindir(ino, blkno, ind_level, filesize,
			    tapesize, nodump, maxino);
	}
	return (ret);
}
Ejemplo n.º 5
0
/*
 * Dump pass 2.
 *
 * Scan each directory on the filesystem to see if it has any modified
 * files in it. If it does, and has not already been added to the dump
 * list (because it was itself modified), then add it. If a directory
 * has not been modified itself, contains no modified files and has no
 * subdirectories, then it can be deleted from the dump list and from
 * the list of directories. By deleting it from the list of directories,
 * its parent may now qualify for the same treatment on this or a later
 * pass using this algorithm.
 */
int
mapdirs(ino_t maxino, int64_t *tapesize)
{
	union dinode *dp;
	int i, isdir, nodump;
	char *map;
	ino_t ino;
	union dinode di;
	off_t filesize;
	int ret, change = 0;

	isdir = 0;		/* XXX just to get gcc to shut up */
	for (map = dumpdirmap, ino = 1; ino < maxino; ino++) {
		if (((ino - 1) % NBBY) == 0)	/* map is offset by 1 */
			isdir = *map++;
		else
			isdir >>= 1;
                /*
		 * If a directory has been removed from usedinomap, it
		 * either has the nodump flag set, or has inherited
		 * it.  Although a directory can't be in dumpinomap if
		 * it isn't in usedinomap, we have to go through it to
		 * propagate the nodump flag.
		 */
		nodump = !nonodump && !TSTINO(ino, usedinomap);
		if ((isdir & 1) == 0 || (TSTINO(ino, dumpinomap) && !nodump))
			continue;
		dp = getino(ino, &i);
		/*
		 * inode buf may change in searchdir().
		 */
		if (sblock->fs_magic == FS_UFS1_MAGIC)
			di.dp1 = dp->dp1;
		else
			di.dp2 = dp->dp2;
		filesize = (off_t)DIP(dp, di_size);
		for (ret = 0, i = 0; filesize > 0 && i < NDADDR; i++) {
			if (DIP(&di, di_db[i]) != 0)
				ret |= searchdir(ino, DIP(&di, di_db[i]),
				    sblksize(sblock, DIP(dp, di_size), i),
				    filesize, tapesize, nodump);
			if (ret & HASDUMPEDFILE)
				filesize = 0;
			else
				filesize -= sblock->fs_bsize;
		}
		for (i = 0; filesize > 0 && i < NIADDR; i++) {
			if (DIP(&di, di_ib[i]) == 0)
				continue;
			ret |= dirindir(ino, DIP(&di, di_ib[i]), i, &filesize,
			    tapesize, nodump);
		}
		if (ret & HASDUMPEDFILE) {
			SETINO(ino, dumpinomap);
			*tapesize += blockest(dp);
			change = 1;
			continue;
		}
                if (nodump) {
                        if (ret & HASSUBDIRS)
                                change = 1;     /* subdirs inherit nodump */
                        CLRINO(ino, dumpdirmap);
                } else if ((ret & HASSUBDIRS) == 0) {
			if (!TSTINO(ino, dumpinomap)) {
				CLRINO(ino, dumpdirmap);
				change = 1;
			}
		}
	}
	return (change);
}
Ejemplo n.º 6
0
/*
 * Dump pass 2.
 *
 * Scan each directory on the filesystem to see if it has any modified
 * files in it. If it does, and has not already been added to the dump
 * list (because it was itself modified), then add it. If a directory
 * has not been modified itself, contains no modified files and has no
 * subdirectories, then it can be deleted from the dump list and from
 * the list of directories. By deleting it from the list of directories,
 * its parent may now qualify for the same treatment on this or a later
 * pass using this algorithm.
 */
int
mapdirs(ufs1_ino_t maxino, long *tape_size)
{
	struct	ufs1_dinode *dp;
	int isdir, nodump;
	unsigned int i;
	char *map;
	ufs1_ino_t ino;
	struct ufs1_dinode di;
	long filesize;
	int ret, change = 0;

	isdir = 0;		/* XXX just to get gcc to shut up */
	for (map = dumpdirmap, ino = 1; ino < maxino; ino++) {
		if (((ino - 1) % NBBY) == 0)	/* map is offset by 1 */
			isdir = *map++;
		else
			isdir >>= 1;
		/*
		 * If a directory has been removed from usedinomap, it
		 * either has the nodump flag set, or has inherited
		 * it.  Although a directory can't be in dumpinomap if
		 * it isn't in usedinomap, we have to go through it to
		 * propagate the nodump flag.
		 */
		nodump = !nonodump && (TSTINO(ino, usedinomap) == 0);
		if ((isdir & 1) == 0 || (TSTINO(ino, dumpinomap) && !nodump))
			continue;
		dp = getino(ino);
		di = *dp;	/* inode buf may change in searchdir(). */
		filesize = di.di_size;
		for (ret = 0, i = 0; filesize > 0 && i < NDADDR; i++) {
			if (di.di_db[i] != 0) {
				ret |= searchdir(ino, di.di_db[i],
					(long)dblksize(sblock, &di, i),
					filesize, tape_size, nodump);
			}
			if (ret & HASDUMPEDFILE)
				filesize = 0;
			else
				filesize -= sblock->fs_bsize;
		}
		for (i = 0; filesize > 0 && i < NIADDR; i++) {
			if (di.di_ib[i] == 0)
				continue;
			ret |= dirindir(ino, di.di_ib[i], i, &filesize,
			    tape_size, nodump);
		}
		if (ret & HASDUMPEDFILE) {
			SETINO(ino, dumpinomap);
			*tape_size += blockest(&di);
			change = 1;
			continue;
		}
		if (nodump) {
			if (ret & HASSUBDIRS)
				change = 1;	/* subdirs inherit nodump */
			CLRINO(ino, dumpdirmap);
		} else if ((ret & HASSUBDIRS) == 0)
			if (!TSTINO(ino, dumpinomap)) {
				CLRINO(ino, dumpdirmap);
				change = 1;
			}
	}
	return (change);
}