networking/udhcp/arpping.h

   1 /*
   2  * arpping .h
   3  */
   4
   5 #ifndef ARPPING_H
   6 #define ARPPING_H
   7
   8 #include <netinet/if_ether.h>
   9 #include <net/if_arp.h>
  10 #include <net/if.h>
  11 #include <netinet/in.h>
  12
  13 struct arpMsg {
  14         struct ethhdr ethhdr;                   /* Ethernet header */
  15         uint16_t htype;                         /* hardware type (must be ARPHRD_ETHER) */
  16         uint16_t ptype;                         /* protocol type (must be ETH_P_IP) */
  17         uint8_t  hlen;                          /* hardware address length (must be 6) */
  18         uint8_t  plen;                          /* protocol address length (must be 4) */
  19         uint16_t operation;                     /* ARP opcode */
  20         uint8_t  sHaddr[6];                     /* sender's hardware address */
  21         uint8_t  sInaddr[4];                    /* sender's IP address */
  22         uint8_t  tHaddr[6];                     /* target's hardware address */
  23         uint8_t  tInaddr[4];                    /* target's IP address */
  24         uint8_t  pad[18];                       /* pad for min. Ethernet payload (60 bytes) */
  25 };
  26
  27 /* function prototypes */
  28 int arpping(uint32_t yiaddr, uint32_t ip, uint8_t *arp, char *interface);
  29
  30 #endif