+struct nl_sock *netlink_create_socket(int protocol);
+ssize_t netlink_get_interface_addrs(int ifindex, bool v6,
+ struct odhcpd_ipaddr **addrs);
+int netlink_setup_route(const struct in6_addr *addr, const int prefixlen,
+ const struct interface *iface, const struct in6_addr *gw,
+ const uint32_t metric, const bool add);
+int netlink_setup_proxy_neigh(const struct in6_addr *addr,
+ const struct interface *iface, const bool add);
+int netlink_setup_addr(struct odhcpd_ipaddr *addr,
+ const struct interface *iface, const bool v6,
+ const bool add);
+