#ifndef _NET_DN_NEIGH_H
  #define _NET_DN_NEIGH_H
  
  /*
   * The position of the first two fields of
   * this structure are critical - SJW
   */
  struct dn_neigh {
          struct neighbour n;

  	__le16 addr;

          unsigned long flags;
  #define DN_NDFLAG_R1    0x0001 /* Router L1      */
  #define DN_NDFLAG_R2    0x0002 /* Router L2      */
  #define DN_NDFLAG_P3    0x0004 /* Phase III Node */
          unsigned long blksize;

  	__u8 priority;

  };

  void dn_neigh_init(void);
  void dn_neigh_cleanup(void);

  int dn_neigh_router_hello(struct net *net, struct sock *sk, struct sk_buff *skb);
  int dn_neigh_endnode_hello(struct net *net, struct sock *sk, struct sk_buff *skb);

  void dn_neigh_pointopoint_hello(struct sk_buff *skb);
  int dn_neigh_elist(struct net_device *dev, unsigned char *ptr, int n);

  int dn_to_neigh_output(struct net *net, struct sock *sk, struct sk_buff *skb);

  
  extern struct neigh_table dn_neigh_table;
  
  #endif /* _NET_DN_NEIGH_H */