+
+ memset(&s, 0, sizeof(s));
+ /* guard against past and future API changes */
+ memcpy(&s, data, min_t(size_t, sizeof(s), nlmsg_len(nlh)));
+ /* check if new data is valid */
+ if ((s.enabled != 0 && s.enabled != 1) ||
+ (s.log_passwd != 0 && s.log_passwd != 1))
+ err = -EINVAL;