IPFW_TGFLAGS_LOCKED
xi.flags |= IPFW_TGFLAGS_LOCKED;
xi.flags |= (lock != 0) ? IPFW_TGFLAGS_LOCKED : 0;
if ((i->flags & IPFW_TGFLAGS_LOCKED) != 0)
tc->locked = ((i->flags & IPFW_TGFLAGS_LOCKED) != 0);
tc->locked = (i->flags & IPFW_TGFLAGS_LOCKED) != 0;
i->flags |= (tc->locked != 0) ? IPFW_TGFLAGS_LOCKED : 0;