1/* atmarp.h - ATM ARP protocol and kernel-demon interface definitions */
2
3/* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */
4
5
6#ifndef _LINUX_ATMARP_H
7#define _LINUX_ATMARP_H
8
9#include <linux/types.h>
10#include <linux/atmapi.h>
11#include <linux/atmioc.h>
12
13
14#define ATMARP_RETRY_DELAY 30		/* request next resolution or forget
15					   NAK after 30 sec - should go into
16					   atmclip.h */
17#define ATMARP_MAX_UNRES_PACKETS 5	/* queue that many packets while
18					   waiting for the resolver */
19
20
21#define ATMARPD_CTRL	_IO('a',ATMIOC_CLIP+1)	/* become atmarpd ctrl sock */
22#define ATMARP_MKIP	_IO('a',ATMIOC_CLIP+2)	/* attach socket to IP */
23#define ATMARP_SETENTRY	_IO('a',ATMIOC_CLIP+3)	/* fill or hide ARP entry */
24#define ATMARP_ENCAP	_IO('a',ATMIOC_CLIP+5)	/* change encapsulation */
25
26
27enum atmarp_ctrl_type {
28	act_invalid,		/* catch uninitialized structures */
29	act_need,		/* need address resolution */
30	act_up,			/* interface is coming up */
31	act_down,		/* interface is going down */
32	act_change		/* interface configuration has changed */
33};
34
35struct atmarp_ctrl {
36	enum atmarp_ctrl_type	type;	/* message type */
37	int			itf_num;/* interface number (if present) */
38	__be32			ip;	/* IP address (act_need only) */
39};
40
41#endif
42