usr/src/grub/grub-0.97/netboot/if_arp.h

   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 */