-void odhcpd_urandom(void *data, size_t len);
-void odhcpd_setup_route(const struct in6_addr *addr, int prefixlen,
- const struct interface *iface, const struct in6_addr *gw, bool add);
+int odhcpd_urandom(void *data, size_t len);
+int odhcpd_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 odhcpd_setup_proxy_neigh(const struct in6_addr *addr,
+ const struct interface *iface, const bool add);