extern void receive_tcppacket(struct connection_t *, char *, int);
extern void broadcast_packet(const struct node_t *, vpn_packet_t *);
extern bool setup_network(void);
extern void receive_tcppacket(struct connection_t *, char *, int);
extern void broadcast_packet(const struct node_t *, vpn_packet_t *);
extern bool setup_network(void);