| #include <netinet/if_ether.h> |
| u_char h_dest[6]; /* destination ether addr */ |
| u_char h_source[6]; /* source ether addr */ |
| u_short h_proto; /* packet type ID field */ |
| uint16_t htype; /* hardware type (must be ARPHRD_ETHER) */ |
| uint16_t ptype; /* protocol type (must be ETH_P_IP) */ |
| uint8_t hlen; /* hardware address length (must be 6) */ |
| uint8_t plen; /* protocol address length (must be 4) */ |
| uint16_t operation; /* ARP opcode */ |
| uint8_t sHaddr[6]; /* sender's hardware address */ |
| uint8_t sInaddr[4]; /* sender's IP address */ |
| uint8_t tHaddr[6]; /* target's hardware address */ |
| uint8_t tInaddr[4]; /* target's IP address */ |
| uint8_t pad[18]; /* pad for min. Ethernet payload (60 bytes) */ |
| } __attribute__ ((packed)); |
| /* function prototypes */ |
| int arpping(uint32_t yiaddr, uint32_t ip, uint8_t *arp, char *interface); |