/* atmarp.h - ATM ARP protocol and kernel-demon interface definitions */
   
  /* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */
   
  
  #ifndef _LINUX_ATMARP_H
  #define _LINUX_ATMARP_H

  #include <linux/types.h>

  #include <linux/atmapi.h>
  #include <linux/atmioc.h>
  
  
  #define ATMARP_RETRY_DELAY 30		/* request next resolution or forget
  					   NAK after 30 sec - should go into
  					   atmclip.h */
  #define ATMARP_MAX_UNRES_PACKETS 5	/* queue that many packets while
  					   waiting for the resolver */
  
  
  #define ATMARPD_CTRL	_IO('a',ATMIOC_CLIP+1)	/* become atmarpd ctrl sock */
  #define ATMARP_MKIP	_IO('a',ATMIOC_CLIP+2)	/* attach socket to IP */
  #define ATMARP_SETENTRY	_IO('a',ATMIOC_CLIP+3)	/* fill or hide ARP entry */
  #define ATMARP_ENCAP	_IO('a',ATMIOC_CLIP+5)	/* change encapsulation */
  
  
  enum atmarp_ctrl_type {
  	act_invalid,		/* catch uninitialized structures */
  	act_need,		/* need address resolution */
  	act_up,			/* interface is coming up */
  	act_down,		/* interface is going down */
  	act_change		/* interface configuration has changed */
  };
  
  struct atmarp_ctrl {
  	enum atmarp_ctrl_type	type;	/* message type */
  	int			itf_num;/* interface number (if present) */

  	__be32			ip;	/* IP address (act_need only) */

  };
  
  #endif