@SuppressWarnings("ConstantConditions")
public static String getClientMacByIP(String ip)
{
String res = "";
if (ip == null)
return res;
String flushCmd = "sh ip -s -s neigh flush all";
Runtime runtime = Runtime.getRuntime();
try
{
runtime.exec(flushCmd,null,new File("/proc/net"));
}
BufferedReader br;
try
{
br = new BufferedReader(new FileReader("/proc/net/arp"));
String line;
while ((line = br.readLine()) != null)
{
String[] sp = line.split(" +");
if (sp.length >= 4 && ip.equals(sp[0]))
{Assistance.Log(sp[0]+sp[2]+sp[3],ALERT_STATES.ALERT_STATE_LOG);
String mac = sp[3];
if (mac.matches("..:..:..:..:..:..") && sp[2].equals("0x2"))
{
res = mac;
break;
}
}
}
br.close();
}
catch (Exception e)
{}
return res;
}
// --------------------------------------------------------
@SuppressWarnings("ConstantConditions")
public static String getClientIPByMac(String mac)
{
String res = "";
if (mac == null)
return res;
String flushCmd = "sh ip -s -s neigh flush all";
Runtime runtime = Runtime.getRuntime();
try
{
runtime.exec(flushCmd,null,new File("/proc/net"));
}
BufferedReader br;
try
{
br = new BufferedReader(new FileReader("/proc/net/arp"));
String line;
while ((line = br.readLine()) != null)
{
String[] sp = line.split(" +");
if (sp.length >= 4 && mac.equals(sp[3]))
{
String ip = sp[0];
if (ip.matches("\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}") && sp[2].equals("0x2"))
{
res = ip;
break;
}
}
}
br.close();
}
catch (Exception e)
{}
return res;
}