PF_RT_SCRUB_FLAGS
snl_add_msg_attr_u16(nw, PF_RT_SCRUB_FLAGS, r->scrub_flags);
{ .type = PF_RT_SCRUB_FLAGS, .off = _OUT(r.scrub_flags), .cb = snl_attr_get_uint16 },
{ .type = PF_RT_SCRUB_FLAGS, .off = _OUT(scrub_flags), .cb = nlattr_get_uint16 },
nlattr_add_u16(nw, PF_RT_SCRUB_FLAGS, rule->scrub_flags);