#ifdef HAVE_NETLINK
-extern int netlink_interface_addr (struct sockaddr_nl *snl,
- struct nlmsghdr *h, ns_id_t ns_id, int startup);
-extern int netlink_link_change (struct sockaddr_nl *snl, struct nlmsghdr *h,
- ns_id_t ns_id, int startup);
-extern int interface_lookup_netlink (struct zebra_ns *zns);
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern int netlink_interface_addr(struct nlmsghdr *h, ns_id_t ns_id,
+ int startup);
+extern int netlink_link_change(struct nlmsghdr *h, ns_id_t ns_id, int startup);
+extern int interface_lookup_netlink(struct zebra_ns *zns);
+
+/*
+ * Set protodown status of interface.
+ *
+ * ifp
+ * Interface to set protodown on.
+ *
+ * down
+ * If true, set protodown on. If false, set protodown off.
+ *
+ * Returns:
+ * 0
+ */
+int netlink_protodown(struct interface *ifp, bool down);
+
+#ifdef __cplusplus
+}
+#endif
#endif /* HAVE_NETLINK */