text: #ifndef _NET_P8022_H
  #define _NET_P8022_H
  extern struct datalink_proto *
  	register_8022_client(unsigned char type,
  			     int (*func)(struct sk_buff *skb,
  					 struct net_device *dev,
  					 struct packet_type *pt,
  					 struct net_device *orig_dev));
  extern void unregister_8022_client(struct datalink_proto *proto);
  
  extern struct datalink_proto *make_8023_client(void);
  extern void destroy_8023_client(struct datalink_proto *dl);
  #endif
  