1 extern void unix_proto_init(struct net_proto *pro); 2 extern struct proto_ops unix_proto_ops; 3 extern void unix_inflight(struct file *fp); 4 extern void unix_notinflight(struct file *fp); 5 typedef struct sock unix_socket; 6 7 unix_socket *unix_socket_list; 8 9 #define UNIX_MAX_FD 8