public Packet Reply(string ipsrc, string ipdest, string mac)
{
GameObject repPack = Instantiate(packetprefab);
Packet packet = repPack.GetComponent <Packet>();
packet.CreatePacket("ARP");
packet.internet.setIP(ipdest, "dest");
packet.internet.setIP(ipsrc, "src");
if (GetComponent <PC>())
{
packet.netAccess.setMAC(GetComponent <PC>().MAC, "src");
}
else
{
packet.netAccess.setMAC(GetComponent <Router>().getMAC(), "src");
}
//set destination MAC address to be the packet's source MAC provided as a parameter to this method
packet.netAccess.setMAC(mac, "dest");
ARP arp = repPack.AddComponent <ARP>();
arp.CreateARP("REPLY", ipdest);
return(packet);
}
/*******************************************************************************/
/* Methods Implemented to Create ARP requests and Replies using the ARP protocol
* /* header and to set up the required information for the header before returning back to the PC
* /***********************************************************/
public Packet Request(string ipsrc, string ipdest)
{
//Request packet instantiated in the game
GameObject reqPack = Instantiate(packetprefab);
//get ref to packet component
Packet packet = reqPack.GetComponent <Packet>();
//create the packet with the ARP ID tag
packet.CreatePacket("ARP");
//set info for packet
packet.internet.setIP(ipdest, "dest");
packet.internet.setIP(ipsrc, "src");
//if the device is a PC, get the pc component and return it's MAC address, else get router's MAC
if (GetComponent <PC>())
{
packet.netAccess.setMAC(GetComponent <PC>().MAC, "src");
}
else
{
packet.netAccess.setMAC(GetComponent <Router>().getMAC(), "src");
}
//set destination MAC address to be a broadcast message
packet.netAccess.setMAC("FF:FF:FF:FF:FF:FF", "dest");
//Add and fill ARP header with data
ARP arp = reqPack.AddComponent <ARP>();
arp.CreateARP("REQUEST", ipdest);
return(packet);
}