+int sd_network_get_dhcp_lease(int ifindex, sd_dhcp_lease **ret);
+
+/* Returns true if link is configured to respect DNS entries received by DHCP */
+int sd_network_dhcp_use_dns(int ifindex);
+
+/* Returns true if link is configured to respect NTP entries received by DHCP */
+int sd_network_dhcp_use_ntp(int ifindex);
+
+/* Get IPv4 DNS entries statically configured for the link */
+int sd_network_get_dns(int ifindex, struct in_addr **addr);