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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 
27 enum 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 
35 struct 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