1 #ifndef	_IF_ARP_H
2 #define	_IF_ARP_H
3 
4 #include "types.h"
5 
6 #define ARP_REQUEST	1
7 #define ARP_REPLY	2
8 
9 #ifndef	MAX_ARP_RETRIES
10 #define MAX_ARP_RETRIES		20
11 #endif
12 
13 /*
14  * A pity sipaddr and tipaddr are not longword aligned or we could use
15  * in_addr. No, I don't want to use #pragma packed.
16  */
17 struct arprequest {
18 	uint16_t hwtype;
19 	uint16_t protocol;
20 	uint8_t  hwlen;
21 	uint8_t  protolen;
22 	uint16_t opcode;
23 	uint8_t  shwaddr[6];
24 	uint8_t  sipaddr[4];
25 	uint8_t  thwaddr[6];
26 	uint8_t  tipaddr[4];
27 };
28 
29 #endif	/* _IF_ARP_H */
30