extern void receive_tcppacket(struct connection_t *c, const char *buffer, size_t length);
extern bool receive_tcppacket_sptps(struct connection_t *c, const char *buffer, size_t length);
extern void broadcast_packet(const struct node_t *n, vpn_packet_t *packet);
extern void receive_tcppacket(struct connection_t *c, const char *buffer, size_t length);
extern bool receive_tcppacket_sptps(struct connection_t *c, const char *buffer, size_t length);
extern void broadcast_packet(const struct node_t *n, vpn_packet_t *packet);