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 #ifdef __KERNEL__
10 #include <linux/types.h>
11 #endif
12 #include <linux/atmapi.h>
13 #include <linux/atmioc.h>
14 
15 
16 #define ATMARP_RETRY_DELAY 30		/* request next resolution or forget
17 					   NAK after 30 sec - should go into
18 					   atmclip.h */
19 #define ATMARP_MAX_UNRES_PACKETS 5	/* queue that many packets while
20 					   waiting for the resolver */
21 
22 
23 #define ATMARPD_CTRL	_IO('a',ATMIOC_CLIP+1)	/* become atmarpd ctrl sock */
24 #define ATMARP_MKIP	_IO('a',ATMIOC_CLIP+2)	/* attach socket to IP */
25 #define ATMARP_SETENTRY	_IO('a',ATMIOC_CLIP+3)	/* fill or hide ARP entry */
26 #define ATMARP_ENCAP	_IO('a',ATMIOC_CLIP+5)	/* change encapsulation */
27 
28 
29 enum atmarp_ctrl_type {
30 	act_invalid,		/* catch uninitialized structures */
31 	act_need,		/* need address resolution */
32 	act_up,			/* interface is coming up */
33 	act_down,		/* interface is going down */
34 	act_change		/* interface configuration has changed */
35 };
36 
37 struct atmarp_ctrl {
38 	enum atmarp_ctrl_type	type;	/* message type */
39 	int			itf_num;/* interface number (if present) */
40 	uint32_t		ip;	/* IP address (act_need only) */
41 };
42 
43 #endif
44