+ if (link->network->dhcp && link->network->dhcp_mtu &&
+ !link->original_mtu) {
+ r = sd_rtnl_message_read_u16(m, IFLA_MTU, &link->original_mtu);
+ if (r >= 0)
+ log_debug_link(link, "saved original MTU: %"
+ PRIu16, link->original_mtu);
+ }
+
+ r = sd_rtnl_message_read_ether_addr(m, IFLA_ADDRESS, &mac);
+ if (r < 0)
+ log_debug_link(link, "Could not get MAC address: %s", strerror(-r));
+ else {
+ if (memcmp(link->mac.ether_addr_octet, mac.ether_addr_octet, ETH_ALEN)) {
+
+ memcpy(link->mac.ether_addr_octet, mac.ether_addr_octet, ETH_ALEN);
+
+ log_debug_link(link, "MAC address: "
+ "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
+ mac.ether_addr_octet[0],
+ mac.ether_addr_octet[1],
+ mac.ether_addr_octet[2],
+ mac.ether_addr_octet[3],
+ mac.ether_addr_octet[4],
+ mac.ether_addr_octet[5]);
+
+ if (link->ipv4ll) {
+ r = sd_ipv4ll_set_mac(link->ipv4ll, &link->mac);
+ if (r < 0) {
+ log_warning_link(link, "Could not update MAC "
+ "address in IPv4LL client: %s",
+ strerror(-r));
+ return r;
+ }
+ }
+
+ if (link->dhcp_client) {
+ r = sd_dhcp_client_set_mac(link->dhcp_client, &link->mac);
+ if (r < 0) {
+ log_warning_link(link, "Could not update MAC "
+ "address in DHCP client: %s",
+ strerror(-r));
+ return r;
+ }
+ }
+ }
+ }
+