/*
* Created on Jul 11, 2007
* Created by Paul Gardner
* Copyright (C) 2007 Aelitis, All Rights Reserved.
*
* 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.
*
* AELITIS, SAS au capital de 63.529,40 euros
* 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
*
*/
package com.aelitis.azureus.core.networkmanager.admin.impl;
import java.net.InetAddress;
import org.gudy.azureus2.core3.tracker.protocol.PRHelpers;
import org.gudy.azureus2.core3.util.Debug;
import com.aelitis.azureus.core.networkmanager.admin.NetworkAdminASN;
import com.aelitis.azureus.core.networkmanager.admin.NetworkAdminException;
public class
NetworkAdminASNImpl
implements NetworkAdminASN
{
private String as;
private String asn;
private String bgp_prefix;
protected
NetworkAdminASNImpl(
String _as,
String _asn,
String _bgp )
{
as = _as;
asn = _asn;
bgp_prefix = _bgp;
}
public String
getAS()
{
return( as==null?"":as );
}
public String
getASName()
{
return( asn==null?"":asn );
}
protected void
setASName(
String s )
{
asn = s;
}
public String
getBGPPrefix()
{
return( bgp_prefix==null?"":bgp_prefix );
}
public InetAddress
getBGPStartAddress()
{
if ( bgp_prefix == null ){
return( null );
}
try{
return( getCIDRStartAddress());
}catch( NetworkAdminException e ){
Debug.out(e);
return( null );
}
}
protected InetAddress
getCIDRStartAddress()
throws NetworkAdminException
{
int pos = bgp_prefix.indexOf('/');
try{
return( InetAddress.getByName( bgp_prefix.substring(0,pos)));
}catch( Throwable e ){
throw( new NetworkAdminException( "Parse failure for '" + bgp_prefix + "'", e ));
}
}
protected InetAddress
getCIDREndAddress()
throws NetworkAdminException
{
int pos = bgp_prefix.indexOf('/');
try{
InetAddress start = InetAddress.getByName( bgp_prefix.substring(0,pos));
int cidr_mask = Integer.parseInt( bgp_prefix.substring( pos+1 ));
int rev_mask = 0;
for (int i=0;i<32-cidr_mask;i++){
rev_mask = ( rev_mask << 1 ) | 1;
}
byte[] bytes = start.getAddress();
bytes[0] |= (rev_mask>>24)&0xff;
bytes[1] |= (rev_mask>>16)&0xff;
bytes[2] |= (rev_mask>>8)&0xff;
bytes[3] |= (rev_mask)&0xff;
return( InetAddress.getByAddress( bytes ));
}catch( Throwable e ){
throw( new NetworkAdminException( "Parse failure for '" + bgp_prefix + "'", e ));
}
}
public boolean
matchesCIDR(
InetAddress address )
{
if ( bgp_prefix == null || bgp_prefix.length() == 0 ){
return( false );
}
try{
InetAddress start = getCIDRStartAddress();
InetAddress end = getCIDREndAddress();
long l_start = PRHelpers.addressToLong( start );
long l_end = PRHelpers.addressToLong( end );
long test = PRHelpers.addressToLong( address );
return( test >= l_start && test <= l_end );
}catch( Throwable e ){
Debug.printStackTrace(e);
return( false );
}
}
public InetAddress
getBGPEndAddress()
{
if ( bgp_prefix == null ){
return( null );
}
try{
return( getCIDREndAddress());
}catch( NetworkAdminException e ){
Debug.out(e);
return( null );
}
}
public boolean
sameAs(
NetworkAdminASN other )
{
return( getAS().equals( other.getAS()));
}
public String
getString()
{
return( "as=" + getAS() + ",asn=" + getASName() + ", bgp_prefx=" + getBGPPrefix() + "[" +getBGPStartAddress() + "-" + getBGPEndAddress() + "]" );
}
}