+int system_if_dump_info(struct device *dev, struct blob_buf *b);
+int system_if_dump_stats(struct device *dev, struct blob_buf *b);
+struct device *system_if_get_parent(struct device *dev);
+bool system_if_force_external(const char *ifname);
+void system_if_apply_settings(struct device *dev, struct device_settings *s);
+
+
+int system_add_address(struct device *dev, struct device_addr *addr);
+int system_del_address(struct device *dev, struct device_addr *addr);
+
+int system_add_route(struct device *dev, struct device_route *route);
+int system_del_route(struct device *dev, struct device_route *route);
+int system_flush_routes(void);
+
+int system_del_ip_tunnel(const char *name);
+int system_add_ip_tunnel(const char *name, struct blob_attr *attr);