typedef void netlink_output_config_fn(void *st, struct buffer_if *buf);
typedef bool_t netlink_check_config_fn(void *st, struct buffer_if *buf);
typedef void netlink_set_mtu_fn(void *st, int32_t new_mtu);
typedef void netlink_output_config_fn(void *st, struct buffer_if *buf);
typedef bool_t netlink_check_config_fn(void *st, struct buffer_if *buf);
typedef void netlink_set_mtu_fn(void *st, int32_t new_mtu);