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Main.java
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/*
* Main Driver to run the program
*/
import java.io.*;
import java.math.BigInteger;
import java.net.InetAddress;
/**
*
* @author Ian, Drake, Justin
*/
public class Main {
private static boolean quit;
public static void main(String[] args) throws IOException {
Router rt;
if( args.length> 1 ) rt = new Router( Integer.parseInt(args[1]) );
else rt = new Router(10);
System.out.println("\n\nWelcome to the Virtural Router Project. "
+ "\nType 'help' for commands.");
while (quit != true)
{
BufferedReader in =
new BufferedReader(new InputStreamReader(System.in));
String userInput = in.readLine();
String virtualPort;
String realIp;
String realPort;
String virtualIp;
String virtualMask;
String virtualGate;
if (userInput.equalsIgnoreCase("connect"))
{
System.out.println("<virtual port number>: ");
virtualPort = in.readLine();
System.out.println("<real ip address> :");
realIp = in.readLine();
System.out.println("<real port address> :");
realPort = in.readLine();
int jack = Integer.parseInt(virtualPort);
InetAddress dst = InetAddress.getByName(realIp);
int port = Integer.parseInt(realPort);
rt.connect(jack,dst,port);
}
else if(userInput.equalsIgnoreCase("run"))
{
try {
/* Change Filepath here */
FileReader fr = new FileReader("C:/Users/Drake/School/Comp 429/data.txt");
BufferedReader br = new BufferedReader(fr);
String strLine;
while ((strLine = br.readLine())!= null)
{
strLine = br.readLine();
if (strLine.equalsIgnoreCase("connect"))
{
System.out.println("connect");
System.out.println("<virtual port number>: ");
virtualPort = br.readLine();
System.out.println(virtualPort);
System.out.println("<real ip address> :");
realIp = br.readLine();
System.out.println(realIp);
System.out.println("<real port address> :");
realPort = br.readLine();
System.out.println(realPort);
int jack = Integer.parseInt(virtualPort);
InetAddress dst = InetAddress.getByName(realIp);
int port = Integer.parseInt(realPort);
rt.connect(jack,dst,port);
System.out.println();
}
else if (strLine.equalsIgnoreCase("ip"))
{
System.out.println("ip");
System.out.println("<virtual port number> : ");
virtualPort = br.readLine();
System.out.println(virtualPort);
System.out.println("<virtual ip address> : ");
virtualIp = br.readLine();
System.out.println(virtualIp);
System.out.println("<virtual net mask> : " );
virtualMask = br.readLine();
System.out.println(virtualMask);
int jack = Integer.parseInt(virtualPort);
InetAddress ip = InetAddress.getByName(virtualIp);
rt.ip(jack,ip,virtualMask);
System.out.println();
}
else if (strLine.equalsIgnoreCase("disconnect"))
{
System.out.println("disconnect");
System.out.println("<virtual port number> : ");
virtualPort = br.readLine();
System.out.println(virtualPort);
int jack = Integer.parseInt(virtualPort);
rt.disconnect(jack);
System.out.println();
}
else if (strLine.equalsIgnoreCase("listen"))
{
System.out.println("listen");
System.out.println("<virtual port number> : ");
virtualPort = br.readLine();
System.out.println(virtualPort);
System.out.println("<real port number> ");
realPort = br.readLine();
System.out.println(realPort);
int jack = Integer.parseInt(virtualPort);
int port = Integer.parseInt(realPort);
rt.listen(jack,port);
System.out.println();
}
else if (strLine.equalsIgnoreCase("route"))
{
System.out.println("route");
System.out.println("<virtual network number> : ");
InetAddress vna = InetAddress.getByName(br.readLine());
System.out.println(vna);
System.out.println("<virtual net mask> : ");
virtualMask = br.readLine();
System.out.println(virtualMask);
System.out.println("<virtual gateway address> : ");
virtualGate = br.readLine();
System.out.println(virtualGate);
NetMask nm = new NetMask(virtualMask);
InetAddress gw = InetAddress.getByName(virtualGate);
rt.route(vna,nm,gw);
System.out.println();
}
}
fr.close();
}
catch (Exception e){
System.err.println("Error: " + e.getMessage());
}
}
else if(userInput.equalsIgnoreCase("listen"))
{
System.out.println("<virtual port number> : ");
virtualPort = in.readLine();
System.out.println("<real port number> ");
realPort = in.readLine();
int jack = Integer.parseInt(virtualPort);
int port = Integer.parseInt(realPort);
rt.listen(jack,port);
}
else if(userInput.equalsIgnoreCase("disconnect"))
{
System.out.println("<virtual port number> : ");
virtualPort = in.readLine();
int jack = Integer.parseInt(virtualPort);
rt.disconnect(jack);
}
else if(userInput.equalsIgnoreCase("ip"))
{
System.out.println("<virtual port number> : ");
virtualPort = in.readLine();
System.out.println("<virtual ip address> : ");
virtualIp = in.readLine();
System.out.println("<virtual net mask> : " );
virtualMask = in.readLine();
int jack = Integer.parseInt(virtualPort);
InetAddress ip = InetAddress.getByName(virtualIp);
rt.ip(jack,ip,virtualMask);
}
else if(userInput.equalsIgnoreCase("route"))
{
System.out.println("<virtual network number> : ");
InetAddress vna = InetAddress.getByName( in.readLine() );
System.out.println("<virtual net mask> : ");
virtualMask = in.readLine();
System.out.println("<virtual gateway address> : ");
virtualGate = in.readLine();
NetMask nm = new NetMask(virtualMask);
InetAddress gw = InetAddress.getByName(virtualGate);
rt.route(vna,nm,gw);
}
else if(userInput.equalsIgnoreCase("show config"))
{
}
else if(userInput.equalsIgnoreCase("ethping")){
System.out.print("jack: ");
int jack = Integer.parseInt(in.readLine());
System.out.println("target mac: ");
long mac = Long.parseLong(in.readLine(),16);
rt.ethping(jack,mac);
}
else if(userInput.equalsIgnoreCase("arp")){
System.out.print("jack: ");
int jack = Integer.parseInt(in.readLine());
System.out.println("target IP: ");
rt.findMAC(InetAddress.getByName(in.readLine()),jack);
}
else if(userInput.equalsIgnoreCase("ipping")){
System.out.print("jack: ");
int jack = Integer.parseInt(in.readLine());
System.out.println("target IP: ");
rt.findMAC(InetAddress.getByName(in.readLine()),jack);
}
else if(userInput.equalsIgnoreCase("quit"))
quit = true;
else if(userInput.equalsIgnoreCase("help"))
commandHelp();
else
System.out.println("Not a valid input, retry");
}
}
public static void commandHelp()
// Prints out the command list for appropriate action
{
System.out.println("connect <virtual port number> <real ip address>:<real port number>");
System.out.println("listen <virtual port number> <real port number>");
System.out.println("disconnect <virtual port number>");
System.out.println("ip <virtual port number number> <virtual ip address> <virtual net mask>");
System.out.println("route <virtual network address> <virtual net mask> <virtual gateway address>");
System.out.println("show config");
}
}