+ r = sd_dhcp_lease_get_netmask(lease, &netmask);
+ if (r < 0) {
+ log_warning_link(link, "DHCP error: no netmask: %s",
+ strerror(-r));
+ return r;
+ }
+
+ prefixlen = net_netmask_to_prefixlen(&netmask);
+
+ r = sd_dhcp_lease_get_router(lease, &gateway);
+ if (r < 0) {
+ log_warning_link(link, "DHCP error: no router: %s",
+ strerror(-r));
+ return r;
+ }
+
+ log_struct_link(LOG_INFO, link,
+ "MESSAGE=%s: DHCPv4 address %u.%u.%u.%u/%u via %u.%u.%u.%u",
+ link->ifname,
+ ADDRESS_FMT_VAL(address),
+ prefixlen,
+ ADDRESS_FMT_VAL(gateway),
+ "ADDRESS=%u.%u.%u.%u",
+ ADDRESS_FMT_VAL(address),
+ "PREFIXLEN=%u",
+ prefixlen,
+ "GATEWAY=%u.%u.%u.%u",
+ ADDRESS_FMT_VAL(gateway),
+ NULL);
+
+ link->dhcp_lease = lease;
+
+ if (link->network->dhcp_dns) {
+ r = sd_dhcp_lease_get_dns(lease, &nameservers, &nameservers_size);
+ if (r >= 0) {
+ r = manager_update_resolv_conf(link->manager);
+ if (r < 0)
+ log_error("Failed to update resolv.conf");
+ }
+ }
+
+ if (link->network->dhcp_mtu) {
+ uint16_t mtu;
+
+ r = sd_dhcp_lease_get_mtu(lease, &mtu);
+ if (r >= 0) {
+ r = link_set_mtu(link, mtu);
+ if (r < 0)
+ log_error_link(link, "Failed to set MTU "
+ "to %" PRIu16, mtu);
+ }
+ }
+
+ if (link->network->dhcp_hostname) {
+ const char *hostname;
+
+ r = sd_dhcp_lease_get_hostname(lease, &hostname);
+ if (r >= 0) {
+ r = set_hostname(link->manager->bus, hostname);
+ if (r < 0)
+ log_error("Failed to set transient hostname "
+ "to '%s'", hostname);
+ }
+ }
+
+ link_enter_set_addresses(link);
+