www.pudn.com > JpcapDumper-0.3-src.zip > IPv4Analyzer.java

package jdumper.analyzer; 
import jpcap.packet.*; 
 
import java.net.InetAddress; 
import java.util.*; 
 
public class IPv4Analyzer extends JDPacketAnalyzer 
{ 
	private static final String[] valueNames={"Version", 
		"TOS: Priority", 
		"TOS: Throughput", 
		"TOS: Reliability", 
		"Length", 
		"Identification", 
		"Fragment: Don't Fragment", 
		"Fragment: More Fragment", 
		"Fragment Offset", 
		"Time To Live", 
		"Protocol", 
		"Source IP", 
		"Destination IP", 
		"Source Host Name", 
		"Destination Host Name"}; 
	private Hashtable values=new Hashtable(); 
	 
	public IPv4Analyzer(){ 
		layer=NETWORK_LAYER; 
	} 
	 
	public boolean isAnalyzable(Packet p){ 
		if(p instanceof IPPacket && ((IPPacket)p).version==4) return true; 
		else return false; 
	} 
	 
	public String getProtocolName(){ 
		return "IPv4"; 
	} 
	 
	public String[] getValueNames(){ 
		return valueNames; 
	} 
	 
	public void analyze(Packet packet){ 
		values.clear(); 
		if(!isAnalyzable(packet))	return; 
		IPPacket ip=(IPPacket)packet; 
		values.put(valueNames[0],new Integer(4)); 
		values.put(valueNames[1],new Integer(ip.priority)); 
		values.put(valueNames[2],new Boolean(ip.t_flag)); 
		values.put(valueNames[3],new Boolean(ip.r_flag)); 
		values.put(valueNames[4],new Integer(ip.length)); 
		values.put(valueNames[5],new Integer(ip.ident)); 
		values.put(valueNames[6],new Boolean(ip.dont_frag)); 
		values.put(valueNames[7],new Boolean(ip.more_frag)); 
		values.put(valueNames[8],new Integer(ip.offset)); 
		values.put(valueNames[9],new Integer(ip.hop_limit)); 
		values.put(valueNames[10],new Integer(ip.protocol)); 
		values.put(valueNames[11],ip.src_ip.getHostAddress()); 
		values.put(valueNames[12],ip.dst_ip.getHostAddress()); 
		values.put(valueNames[13],ip.src_ip); 
		values.put(valueNames[14],ip.dst_ip); 
	} 
	 
	public Object getValue(String valueName){ 
		if((valueNames[13].equals(valueName) && values.get(valueName) instanceof InetAddress) || 
		   (valueNames[14].equals(valueName) && values.get(valueName) instanceof InetAddress)){ 
			 
			values.put(valueName,((InetAddress)values.get(valueName)).getHostName()); 
		} 
 
		return values.get(valueName); 
	} 
	 
	Object getValueAt(int index){ 
		if(index<0 || index>=valueNames.length) return null; 
 
		if((index==13 && values.get(valueNames[index]) instanceof InetAddress) || 
		   (index==14 && values.get(valueNames[index]) instanceof InetAddress)){ 
			values.put(valueNames[index],((InetAddress)values.get(valueNames[index])).getHostName()); 
		} 
 
		return values.get(valueNames[index]); 
	} 
	 
	public Object[] getValues(){ 
		Object[] v=new Object[valueNames.length]; 
		 
		for(int i=0;i