Initial commit

arp.h

@@ -0,0 +1,40 @@
+/* arp/arp.h */
+
+#ifndef ARP_H_
+#define ARP_H_
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+
+#include <arpa/inet.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <net/if.h>
+#include <net/ethernet.h>
+
+#include <netpacket/packet.h>
+#include <netinet/ether.h>
+
+
+#define DEBUG
+
+
+
+/* Sends an ARP request
+    
+   sockfd is the file descriptor of the socket to use to send the
+   frame, should be a raw socket (AF_PACKET), which accepts ARP
+   (ETH_P_ALL or ETH_P_ARP)
+   ifindex is the index of the network interface
+   ipaddr is the source IP address
+   macaddr is the source MAC address
+   target_ip is the IP address to be queried via ARP
+
+   The function returns 0 upon success, EXIT_FAILURE otherwise.
+*/
+int send_arp_request(int sockfd, int ifindex, struct sockaddr_in *ipaddr, unsigned char *macaddr, struct in_addr target_ip);
+
+
+#endif /* ARP_H_ */