/* actual MPFFS on-media structure */
struct mpffs_index {
	u16	len;
	u8	unknown_b1;
	u8	type;
	u16	descend;
	u16	sibling;
	u32	dataptr;
	u16	unknown_w1;
	u16	unknown_w2;
};

/* our own struct for convenience */
struct objinfo {
	u16	entryno;
	struct	mpffs_index *idxrec;
	u8	*dataptr;
	u32	offset;
	u16	len;
	u8	type;
	u16	descend;
	u16	sibling;
};

/* chunk location and size info */
struct chunkinfo {
	u8	*start;
	u8	*end;
	size_t	len;
};