extern int device_fd;
extern char *device;
-
extern char *iface;
+extern uint64_t device_in_packets;
+extern uint64_t device_in_bytes;
+extern uint64_t device_out_packets;
+extern uint64_t device_out_bytes;
+
extern bool setup_device(void);
extern void close_device(void);
extern bool read_packet(struct vpn_packet_t *);