+int sd_network_get_dhcp_lease(unsigned ifindex, sd_dhcp_lease **ret);
+
+/* Returns true if link is configured to respect DNS entries received by DHCP */
+int sd_network_dhcp_use_dns(unsigned ifindex);
+
+/* Returns true if link is configured to respect NTP entries received by DHCP */
+int sd_network_dhcp_use_ntp(unsigned ifindex);
+
+/* Get IPv4 DNS entries statically configured for the link */
+int sd_network_get_dns(unsigned ifindex, struct in_addr **addr);
+
+/* Get IPv4 NTP entries statically configured for the link */
+int sd_network_get_ntp(unsigned ifindex, struct in_addr **addr);
+
+/* Get IPv6 DNS entries statically configured for the link */
+int sd_network_get_dns6(unsigned ifindex, struct in6_addr **addr);
+
+/* Get IPv6 NTP entries statically configured for the link */
+int sd_network_get_ntp6(unsigned ifindex, struct in6_addr **addr);