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/*******************************************************************************
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*Copyright (c) 2009 Eucalyptus Systems, Inc.
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, only version 3 of the License.
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* This file is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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* Please contact Eucalyptus Systems, Inc., 130 Castilian
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* Dr., Goleta, CA 93101 USA or visit <http://www.eucalyptus.com/licenses/>
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* if you need additional information or have any questions.
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* This file may incorporate work covered under the following copyright and
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* Software License Agreement (BSD License)
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* Copyright (c) 2008, Regents of the University of California
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* All rights reserved.
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* Redistribution and use of this software in source and binary forms, with
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* or without modification, are permitted provided that the following
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. USERS OF
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* THIS SOFTWARE ACKNOWLEDGE THE POSSIBLE PRESENCE OF OTHER OPEN SOURCE
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* LICENSED MATERIAL, COPYRIGHTED MATERIAL OR PATENTED MATERIAL IN THIS
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* SOFTWARE, AND IF ANY SUCH MATERIAL IS DISCOVERED THE PARTY DISCOVERING
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* IT MAY INFORM DR. RICH WOLSKI AT THE UNIVERSITY OF CALIFORNIA, SANTA
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* BARBARA WHO WILL THEN ASCERTAIN THE MOST APPROPRIATE REMEDY, WHICH IN
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* THE REGENTS’ DISCRETION MAY INCLUDE, WITHOUT LIMITATION, REPLACEMENT
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* OF THE CODE SO IDENTIFIED, LICENSING OF THE CODE SO IDENTIFIED, OR
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* WITHDRAWAL OF THE CODE CAPABILITY TO THE EXTENT NEEDED TO COMPLY WITH
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* ANY SUCH LICENSES OR RIGHTS.
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*******************************************************************************/
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* Author: chris grzegorczyk <grze@eucalyptus.com>
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package com.eucalyptus.util;
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import java.io.IOException;
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import java.net.Inet4Address;
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import java.net.InetAddress;
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import java.net.InterfaceAddress;
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import java.net.NetworkInterface;
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import java.net.SocketException;
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import java.net.URISyntaxException;
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import java.net.UnknownHostException;
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import java.util.Collections;
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import java.util.Enumeration;
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import java.util.List;
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import org.apache.log4j.Logger;
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import com.google.common.base.Predicate;
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import com.google.common.collect.Iterables;
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import com.google.common.collect.Lists;
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public class NetworkUtil {
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private static Logger LOG = Logger.getLogger( NetworkUtil.class );
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public static List<String> getAllAddresses() throws SocketException {
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List<String> addrs = Lists.newArrayList( );
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Enumeration<NetworkInterface> ifaces = NetworkInterface.getNetworkInterfaces( );
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while( ifaces.hasMoreElements( ) ) {
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NetworkInterface iface = ifaces.nextElement( );
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for( InterfaceAddress iaddr : iface.getInterfaceAddresses( ) ) {
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InetAddress addr = iaddr.getAddress( );
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if( addr instanceof Inet4Address ) {
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if( !addr.isMulticastAddress( ) && !addr.isLoopbackAddress( ) && !addr.isLinkLocalAddress( ) && !addr.isSiteLocalAddress( ) && !"192.168.122.1".equals( addr.getHostAddress( ) ) ) {
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addrs.add( addr.getHostAddress( ) );
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if( addr instanceof Inet4Address ) {
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if( !addr.isMulticastAddress( ) && !addr.isLoopbackAddress( ) && !addr.isLinkLocalAddress( ) && !addrs.contains( addr.getHostAddress( ) ) && !"192.168.122.1".equals( addr.getHostAddress( ) ) ) {
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addrs.add( addr.getHostAddress( ) );
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public static boolean testReachability( String addr ) throws Exception {
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Exceptions.ifNullArgument( addr );
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InetAddress inetAddr = Inet4Address.getByName( addr );
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return inetAddr.isReachable( 10000 );
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public static InetAddress toAddress( URI uri ) {
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Exceptions.ifNullArgument( uri );
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return InetAddress.getByName( uri.getHost( ) );
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} catch ( UnknownHostException e ) {
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throw Exceptions.illegalArgument( "Failed to resolve address for host: " + uri.getHost( ), e );
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public static InetAddress toAddress( String maybeUrlMaybeHostname ) {
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Exceptions.ifNullArgument( maybeUrlMaybeHostname );
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if( maybeUrlMaybeHostname.startsWith( "vm:" ) ) {
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maybeUrlMaybeHostname = "localhost";
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String hostAddress = null;
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uri = new URI( maybeUrlMaybeHostname );
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hostAddress = uri.getHost( );
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} catch ( URISyntaxException e ) {
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hostAddress = maybeUrlMaybeHostname;
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InetAddress ret = null;
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ret = InetAddress.getByName( hostAddress );
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} catch ( UnknownHostException e1 ) {
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throw Exceptions.fatal( "Failed to resolve address for host: " + maybeUrlMaybeHostname, e1 );
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public static boolean testLocal( final InetAddress addr ) {
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Exceptions.ifNullArgument( addr );
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Boolean result = addr.isAnyLocalAddress( );
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result |= Iterables.any( Collections.list( NetworkInterface.getNetworkInterfaces( ) ), new Predicate<NetworkInterface>() {
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@Override public boolean apply( NetworkInterface arg0 ) {
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return Iterables.any( arg0.getInterfaceAddresses( ), new Predicate<InterfaceAddress>() {
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@Override public boolean apply( InterfaceAddress arg0 ) {
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return arg0.getAddress( ).equals( addr );
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} catch ( Exception e ) {
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return Exceptions.eat( e.getMessage( ), e );
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public static boolean testLocal( String address ) {
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Exceptions.ifNullArgument( address );
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addr = InetAddress.getByName( address );
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return testLocal( addr );
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} catch ( UnknownHostException e ) {
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return Exceptions.eat( e.getMessage( ), e );
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public static boolean testGoodAddress( String address ) throws Exception {
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InetAddress addr = InetAddress.getByName( address );
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LOG.debug( addr + " site=" + addr.isSiteLocalAddress( ) );
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LOG.debug( addr + " any=" + addr.isAnyLocalAddress( ) );
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LOG.debug( addr + " loop=" + addr.isLoopbackAddress( ) );
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LOG.debug( addr + " link=" + addr.isLinkLocalAddress( ) );
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LOG.debug( addr + " multi=" + addr.isMulticastAddress( ) );
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return addr.isSiteLocalAddress( ) || ( !addr.isAnyLocalAddress( ) && !addr.isLoopbackAddress( ) && !addr.isLinkLocalAddress( ) && !addr.isMulticastAddress( ) );
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public static void main( String[] args) throws Exception {
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for( String addr : NetworkUtil.getAllAddresses( ) ) {
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System.out.println( addr );
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System.out.println("Testing if 192.168.7.8 is reachable: " + NetworkUtil.testReachability( "192.168.7.8" ) );