}
int sd_ipv4ll_set_mac(sd_ipv4ll *ll, const struct ether_addr *addr) {
+ bool need_restart = false;
+
assert_return(ll, -EINVAL);
- assert_return(ll->state == IPV4LL_STATE_INIT, -EBUSY);
+ assert_return(addr, -EINVAL);
+
+ if (memcmp(&ll->mac_addr, addr, ETH_ALEN) == 0)
+ return 0;
+
+ if (ll->state != IPV4LL_STATE_INIT) {
+ log_ipv4ll(ll, "Changing MAC address on running IPv4LL "
+ "client, restarting");
+ sd_ipv4ll_stop(ll);
+ need_restart = true;
+ }
+
+ memcpy(&ll->mac_addr, addr, ETH_ALEN);
- memcpy(&ll->mac_addr.ether_addr_octet, addr, ETH_ALEN);
+ if (need_restart)
+ sd_ipv4ll_start(ll);
return 0;
}