extern int setup_listen_socket(const sockaddr_t *);
extern int setup_vpn_in_socket(const sockaddr_t *);
extern void send_packet(struct node_t *, vpn_packet_t *);
extern int setup_listen_socket(const sockaddr_t *);
extern int setup_vpn_in_socket(const sockaddr_t *);
extern void send_packet(struct node_t *, vpn_packet_t *);
extern void broadcast_packet(const struct node_t *, vpn_packet_t *);
extern bool setup_network(void);
extern void setup_outgoing_connection(struct outgoing_t *);
extern void broadcast_packet(const struct node_t *, vpn_packet_t *);
extern bool setup_network(void);
extern void setup_outgoing_connection(struct outgoing_t *);
extern void send_mtu_probe(struct node_t *);
extern void handle_device_data(int, short, void *);
extern void handle_meta_connection_data(int, short, void *);
extern void send_mtu_probe(struct node_t *);
extern void handle_device_data(int, short, void *);
extern void handle_meta_connection_data(int, short, void *);