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/*
* Wireless Host Monitor
*
* Copyright (C) 2003, Jonathan Sevy <jsevy@mcs.drexel.edu>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
package airporthostmon;
import snmp.*;
import java.io.*;
public class GraphiteAirportHostInfoRetriever
extends HostInfoRetriever
{
// OIDs for retrieving info from Graphite base stations
private static String macAddressBaseOID = "1.3.6.1.4.1.762.2.5.2.1.11";
private static String ipAddressBaseOID = "1.3.6.1.4.1.762.2.5.2.1.15";
private static String name = "Airport (Graphite) / RG-1000";
/**
* Static initializer, to call base class routine registerRetriever with a name
* to register this retriever in the list of retrievers when class is loaded
*/
static
{
GraphiteAirportHostInfoRetriever retriever = new GraphiteAirportHostInfoRetriever();
registerRetriever(name, retriever);
}
public int getWANInterfaceIndex()
{
// Ethernet interface is on index 1; unfortunately, the ipAddress table lists _all_ of the interfaces
// as interface 1, so the first listed IP address is what we'll get, and that seems to generally be
// the one corresponding to the LAN (wireless) interface.
return 1;
}
public HostInfoTreeMap getHostInfo(SNMPv1CommunicationInterface communicationInterface)
throws IOException, SNMPGetException, SNMPBadValueException
{
// do wireless host discovery process
String itemID;
SNMPVarBindList newVars;
SNMPSequence pair;
SNMPInteger snmpIntegerValue;
SNMPObject snmpValue;
// first, need to write values to appropriate OID's - why, I don't know...
try
{
for (int i = 1; i <= 3; i++)
{
itemID = "1.3.6.1.4.1.762.2.5.5." + i;
communicationInterface.setMIBEntry(itemID, new SNMPInteger(500)); // was 50
itemID = "1.3.6.1.4.1.762.2.5.4." + i;
communicationInterface.setMIBEntry(itemID, new SNMPInteger(3));
}
}
catch (SNMPSetException e)
{
throw new SNMPGetException("Unable to configure base station to retrieve information");
}
String[] baseOIDs = {macAddressBaseOID};
SNMPVarBindList varBindList = communicationInterface.retrieveMIBTable(baseOIDs);
// create a Vector with HostInfo
HostInfoTreeMap hostInfoTreeMap = new HostInfoTreeMap();
for (int i = 0; i < varBindList.size(); i++)
{
SNMPSequence variablePair = (SNMPSequence)varBindList.getSNMPObjectAt(i);
SNMPObjectIdentifier snmpOID = (SNMPObjectIdentifier)variablePair.getSNMPObjectAt(0);
SNMPOctetString snmpMacAddress = (SNMPOctetString)variablePair.getSNMPObjectAt(1);
MacAddress macAddress = new MacAddress((byte[])snmpMacAddress.getValue());
HostInfo hostInfo = new HostInfo();
hostInfo.macAddress = macAddress;
hostInfo.timeAssociated = -1;
hostInfoTreeMap.put(macAddress, hostInfo);
}
// now fetch arp info table, to get IP addresses
String[] arpBaseOIDs = {"1.3.6.1.2.1.4.22.1.2", "1.3.6.1.2.1.4.22.1.3"};
SNMPVarBindList snmpArpInfo = communicationInterface.retrieveMIBTable(arpBaseOIDs);
RarpInfoTreeMap rarpInfoTreeMap = new RarpInfoTreeMap(snmpArpInfo);
hostInfoTreeMap.setIPAddresses(rarpInfoTreeMap);
return hostInfoTreeMap;
}
}
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