+ log_warning_link(link, "DHCP lease lost");
+
+ r = address_new_dynamic(&address);
+ if (r >= 0) {
+ sd_dhcp_lease_get_address(link->dhcp_lease, &addr);
+ sd_dhcp_lease_get_netmask(link->dhcp_lease, &netmask);
+ prefixlen = net_netmask_to_prefixlen(&netmask);
+
+ address->family = AF_INET;
+ address->in_addr.in = addr;
+ address->prefixlen = prefixlen;
+
+ address_drop(address, link, address_drop_handler);
+ }
+
+ if (link->network->dhcp_mtu) {
+ uint16_t mtu;
+
+ r = sd_dhcp_lease_get_mtu(link->dhcp_lease, &mtu);
+ if (r >= 0 && link->original_mtu != mtu) {
+ r = link_set_mtu(link, link->original_mtu);
+ if (r < 0) {
+ log_warning_link(link, "DHCP error: could not reset MTU");
+ link_enter_failed(link);
+ return r;
+ }
+ }
+ }
+
+ if (link->network->dhcp_hostname) {
+ const char *hostname = NULL;
+
+ r = sd_dhcp_lease_get_hostname(link->dhcp_lease, &hostname);
+ if (r >= 0 && hostname) {
+ r = set_hostname(link->manager->bus, "");
+ if (r < 0)
+ log_error("Failed to reset transient hostname");
+ }
+ }
+
+ link->dhcp_lease = sd_dhcp_lease_unref(link->dhcp_lease);
+
+ return 0;
+}
+
+static int dhcp_lease_acquired(sd_dhcp_client *client, Link *link) {
+ sd_dhcp_lease *lease;
+ struct in_addr address;
+ struct in_addr netmask;
+ struct in_addr gateway;
+ unsigned prefixlen;
+ struct in_addr *nameservers;
+ size_t nameservers_size;
+ int r;
+
+ assert(client);
+ assert(link);
+
+ r = sd_dhcp_client_get_lease(client, &lease);