-void netdev_enumerate(struct svec *);
-bool netdev_find_dev_by_in4(const struct in_addr *in4, char **netdev_name);
-int netdev_nodev_get_flags(const char *netdev_name, enum netdev_flags *);
-bool netdev_nodev_get_in4(const char *netdev_name, struct in_addr *);
-int netdev_nodev_set_etheraddr(const char *name, const uint8_t mac[6]);
-int netdev_nodev_get_etheraddr(const char *netdev_name, uint8_t mac[6]);
-int netdev_nodev_set_policing(const char *netdev_name, uint32_t kbits_rate,
- uint32_t kbits_burst);
-int netdev_nodev_arp_lookup(const char *netdev_name, uint32_t ip,
- uint8_t mac[6]);
-int netdev_nodev_get_carrier(const char *netdev_name, bool *carrier);
-
-int netdev_get_vlan_vid(const char *netdev_name, int *vlan_vid);
+int netdev_get_vlan_vid(const struct netdev *, int *vlan_vid);
+struct netdev *netdev_find_dev_by_in4(const struct in_addr *);
+
+struct netdev_monitor *netdev_monitor_create(void);
+void netdev_monitor_destroy(struct netdev_monitor *);
+int netdev_monitor_add(struct netdev_monitor *, struct netdev *);
+void netdev_monitor_remove(struct netdev_monitor *, struct netdev *);
+int netdev_monitor_poll(struct netdev_monitor *, char **devnamep);
+void netdev_monitor_poll_wait(const struct netdev_monitor *);