int netdev_open(struct netdev_options *, struct netdev **);
int netdev_open_default(const char *name, struct netdev **);
int netdev_reconfigure(struct netdev *, const struct shash *args);
void netdev_close(struct netdev *);
bool netdev_exists(const char *name);
int netdev_open(struct netdev_options *, struct netdev **);
int netdev_open_default(const char *name, struct netdev **);
int netdev_reconfigure(struct netdev *, const struct shash *args);
void netdev_close(struct netdev *);
bool netdev_exists(const char *name);