-extern void send_packet(const struct node_t *, vpn_packet_t *);
-extern void receive_tcppacket(struct connection_t *, char *, int);
+extern bool send_sptps_data(void *handle, uint8_t type, const void *data, size_t len);
+extern bool receive_sptps_record(void *handle, uint8_t type, const void *data, uint16_t len);
+extern void send_packet(struct node_t *, vpn_packet_t *);
+extern void receive_tcppacket(struct connection_t *, const char *, int);