PF_RT_STATE_LIMIT
snl_add_msg_attr_u8(nw, PF_RT_STATE_LIMIT, r->statelim.id);
{ .type = PF_RT_STATE_LIMIT, .off = _OUT(r.statelim.id), .cb = snl_attr_get_uint8 },
nlattr_add_u8(nw, PF_RT_STATE_LIMIT, rule->statelim.id);
{ .type = PF_RT_STATE_LIMIT, .off = _OUT(statelim.id), .cb = nlattr_get_uint8 },