Add arp_packet struct and parsing in eth_recv

1 files changed, 15 insertions, 0 deletions

diff --git a/include/junk/network.h b/include/junk/network.h
index 73dd127..12a3af0 100644
--- a/include/junk/network.h
+++ b/include/junk/network.h
@@ -2,6 +2,7 @@
 
 
 //Layer 4, TCP
+#include <linux/if_ether.h>
 int tcp_ipv4_send(char* ip, char* port, char* data);
 int tcp_ipv4_recv(char* ip, char* port, char* data);
 int ipv4_bind(char* ip, char* port, char* data);
@@ -11,3 +12,17 @@ int ipv4_bind(char* ip, char* port, char* data);
 int eth_bind(char address[]);
 int eth_send(int sockfd, char* data);
 int eth_recv(int sockfd);
+
+typedef struct ethhdr ethhdr;
+
+typedef struct arp_packet {
+  unsigned char hardware_type[2];
+  unsigned char protocol_type[2];
+  unsigned char hardware_length[1];
+  unsigned char protocol_length[1];
+  unsigned char operation[2];
+  unsigned char sender_hardware_address[6];
+  unsigned char sender_protocol_address[4];
+  unsigned char target_hardware_address[6];
+  unsigned char target_protocol_address[4];
+  } arp_packet;