int p2pkp_create_udp_sock(struct socket **sock);
void p2pkp_destroy_udp_sock(struct socket *sock);
int p2pkp_msgsend(struct socket *s, struct sockaddr_in *sin, char *buffer, int len);
+int p2pkp_msgrecv(struct socket *s, struct sockaddr_in *sin, char *buffer, int len);
#endif /* _P2PKP_NET_H_ */