#define STASH_MAGIC            0xbabe0002
#define STASH_MAGIC_MASK       0xffff0000
#define STASH_VERSION_MASK     0x0000ffff

/* Make sure the magic part is good, version doesn't matter */
#define STASH_OKAY(magic)      \
   ( ((magic) & STASH_MAGIC_MASK) == (STASH_MAGIC & STASH_MAGIC_MASK) )
#define STASH_VERSION(magic)  ((magic) & STASH_VERSION_MASK)