/*
* Copyright 2011 Future Systems
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.krakenapps.ipmanager.impl;
import java.net.InetAddress;
import java.util.Date;
import java.util.Map;
import org.apache.felix.ipojo.annotations.Component;
import org.apache.felix.ipojo.annotations.Provides;
import org.apache.felix.ipojo.annotations.Requires;
import org.krakenapps.cron.PeriodicJob;
import org.krakenapps.ipmanager.ArpScanner;
import org.krakenapps.ipmanager.IpDetection;
import org.krakenapps.ipmanager.IpManager;
import org.krakenapps.pcap.decoder.ethernet.MacAddress;
import org.krakenapps.pcap.live.PcapDeviceManager;
import org.krakenapps.pcap.live.PcapDeviceMetadata;
import org.krakenapps.pcap.util.Arping;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@Component(name = "ipm-arp-scanner")
@Provides
@PeriodicJob("*/5 * * * *")
public class ArpScannerService implements ArpScanner {
private final Logger logger = LoggerFactory.getLogger(ArpScannerService.class.getName());
@Requires
private IpManager ipManager;
private int timeout = 10000; // 10sec by default
@Override
public int getTimeout() {
return timeout;
}
@Override
public void setTimeout(int timeout) {
this.timeout = timeout;
}
@Override
public void run() {
if (ipManager == null)
return;
logger.trace("kraken ipmanager: begin arp scanning");
for (PcapDeviceMetadata metadata : PcapDeviceManager.getDeviceMetadataList()) {
try {
logger.trace("kraken ipmanager: begin arp scanning for [{}]", metadata.getName());
Date now = new Date();
Map<InetAddress, MacAddress> m = Arping.scan(metadata.getName(), timeout);
for (InetAddress ip : m.keySet()) {
MacAddress mac = m.get(ip);
IpDetection d = new IpDetection("local", now, mac, ip);
if (ipManager != null)
ipManager.updateIpEntry(d);
logger.trace("kraken ipmanager: found arp entry [{}, {}]", ip, mac);
}
} catch (Exception e) {
logger.error("kraken ipmanager: arp scan failed", e);
}
}
logger.trace("kraken ipmanager: arp scanning ended");
}
}