int (*socket_shutdown) (struct socket * sock, int how);
int (*socket_sock_rcv_skb) (struct sock * sk, struct sk_buff * skb);
int (*socket_getpeersec) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len);
int (*socket_shutdown) (struct socket * sock, int how);
int (*socket_sock_rcv_skb) (struct sock * sk, struct sk_buff * skb);
int (*socket_getpeersec) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len);