/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.commons.net;
import org.apache.commons.net.util.SubnetUtils;
import org.apache.commons.net.util.SubnetUtils.SubnetInfo;
import junit.framework.TestCase;
public class SubnetUtilsTest extends TestCase {
public void testParseSimpleNetmask() {
final String address = "192.168.0.1";
final String masks[] = new String[] { "255.0.0.0", "255.255.0.0", "255.255.255.0", "255.255.255.248"};
final String bcastAddresses[] = new String[] { "192.255.255.255", "192.168.255.255", "192.168.0.255", "192.168.0.7"};
final String lowAddresses[] = new String[] { "192.0.0.1", "192.168.0.1", "192.168.0.1", "192.168.0.1" };
final String highAddresses[] = new String[] { "192.255.255.254", "192.168.255.254", "192.168.0.254", "192.168.0.6" };
final String networkAddresses[] = new String[] { "192.0.0.0", "192.168.0.0", "192.168.0.0", "192.168.0.0" };
final String cidrSignatures[] = new String[] { "192.168.0.1/8", "192.168.0.1/16", "192.168.0.1/24", "192.168.0.1/29" };
final int usableAddresses[] = new int[] { 16777214, 65534, 254, 6 };
for (int i = 0; i < masks.length; ++i) {
SubnetUtils utils = new SubnetUtils(address, masks[i]);
SubnetInfo info = utils.getInfo();
assertEquals(bcastAddresses[i], info.getBroadcastAddress());
assertEquals(cidrSignatures[i], info.getCidrSignature());
assertEquals(lowAddresses[i], info.getLowAddress());
assertEquals(highAddresses[i], info.getHighAddress());
assertEquals(networkAddresses[i], info.getNetworkAddress());
assertEquals(usableAddresses[i], info.getAddressCount());
}
}
// TODO Lower address test
public void testAddresses() {
SubnetUtils utils = new SubnetUtils("192.168.0.1/29");
SubnetInfo info = utils.getInfo();
assertTrue(info.isInRange("192.168.0.1"));
// We don't count the broadcast address as usable
assertFalse(info.isInRange("192.168.0.7"));
assertFalse(info.isInRange("192.168.0.8"));
assertFalse(info.isInRange("10.10.2.1"));
assertFalse(info.isInRange("192.168.1.1"));
assertFalse(info.isInRange("192.168.0.255"));
}
public void testZeroNetmaskBits() {
try {
@SuppressWarnings("unused")
SubnetUtils utils = new SubnetUtils("192.168.0.1/0");
fail("Mask /0 should have generated an IllegalArgumentException");
}
catch (IllegalArgumentException expected) {
}
}
/**
* Test using the inclusiveHostCount flag, which includes
* the network and broadcast addresses in host counts
*/
public void testCidrAddresses() {
SubnetUtils utils = new SubnetUtils("192.168.0.1/8");
utils.setInclusiveHostCount(true);
SubnetInfo info = utils.getInfo();
assertEquals("255.0.0.0",info.getNetmask());
assertEquals(16777216, info.getAddressCount());
utils = new SubnetUtils("192.168.0.1/9");
utils.setInclusiveHostCount(true);
info = utils.getInfo();
assertEquals("255.128.0.0",info.getNetmask());
assertEquals(8388608, info.getAddressCount());
utils = new SubnetUtils("192.168.0.1/10");
utils.setInclusiveHostCount(true);
info = utils.getInfo();
assertEquals("255.192.0.0",info.getNetmask());
assertEquals(4194304, info.getAddressCount());
utils = new SubnetUtils("192.168.0.1/11");
utils.setInclusiveHostCount(true);
info = utils.getInfo();
assertEquals("255.224.0.0",info.getNetmask());
assertEquals(2097152, info.getAddressCount());
utils = new SubnetUtils("192.168.0.1/12");
utils.setInclusiveHostCount(true);
info = utils.getInfo();
assertEquals("255.240.0.0",info.getNetmask());
assertEquals(1048576, info.getAddressCount());
utils = new SubnetUtils("192.168.0.1/13");
utils.setInclusiveHostCount(true);
info = utils.getInfo();
assertEquals("255.248.0.0",info.getNetmask());
assertEquals(524288, info.getAddressCount());
utils = new SubnetUtils("192.168.0.1/14");
utils.setInclusiveHostCount(true);
info = utils.getInfo();
assertEquals("255.252.0.0",info.getNetmask());
assertEquals(262144, info.getAddressCount());
utils = new SubnetUtils("192.168.0.1/15");
utils.setInclusiveHostCount(true);
info = utils.getInfo();
assertEquals("255.254.0.0",info.getNetmask());
assertEquals(131072, info.getAddressCount());
utils = new SubnetUtils("192.168.0.1/16");
utils.setInclusiveHostCount(true);
info = utils.getInfo();
assertEquals("255.255.0.0",info.getNetmask());
assertEquals(65536, info.getAddressCount());
utils = new SubnetUtils("192.168.0.1/17");
utils.setInclusiveHostCount(true);
info = utils.getInfo();
assertEquals("255.255.128.0",info.getNetmask());
assertEquals(32768, info.getAddressCount());
utils = new SubnetUtils("192.168.0.1/18");
utils.setInclusiveHostCount(true);
info = utils.getInfo();
assertEquals("255.255.192.0",info.getNetmask());
assertEquals(16384, info.getAddressCount());
utils = new SubnetUtils("192.168.0.1/19");
utils.setInclusiveHostCount(true);
info = utils.getInfo();
assertEquals("255.255.224.0",info.getNetmask());
assertEquals(8192, info.getAddressCount());
utils = new SubnetUtils("192.168.0.1/20");
utils.setInclusiveHostCount(true);
info = utils.getInfo();
assertEquals("255.255.240.0",info.getNetmask());
assertEquals(4096, info.getAddressCount());
utils = new SubnetUtils("192.168.0.1/21");
utils.setInclusiveHostCount(true);
info = utils.getInfo();
assertEquals("255.255.248.0",info.getNetmask());
assertEquals(2048, info.getAddressCount());
utils = new SubnetUtils("192.168.0.1/22");
utils.setInclusiveHostCount(true);
info = utils.getInfo();
assertEquals("255.255.252.0",info.getNetmask());
assertEquals(1024, info.getAddressCount());
utils = new SubnetUtils("192.168.0.1/23");
utils.setInclusiveHostCount(true);
info = utils.getInfo();
assertEquals("255.255.254.0",info.getNetmask());
assertEquals(512, info.getAddressCount());
utils = new SubnetUtils("192.168.0.1/24");
utils.setInclusiveHostCount(true);
info = utils.getInfo();
assertEquals("255.255.255.0",info.getNetmask());
assertEquals(256, info.getAddressCount());
utils = new SubnetUtils("192.168.0.1/25");
utils.setInclusiveHostCount(true);
info = utils.getInfo();
assertEquals("255.255.255.128",info.getNetmask());
assertEquals(128, info.getAddressCount());
utils = new SubnetUtils("192.168.0.1/26");
utils.setInclusiveHostCount(true);
info = utils.getInfo();
assertEquals("255.255.255.192",info.getNetmask());
assertEquals(64, info.getAddressCount());
utils = new SubnetUtils("192.168.0.1/27");
utils.setInclusiveHostCount(true);
info = utils.getInfo();
assertEquals("255.255.255.224",info.getNetmask());
assertEquals(32, info.getAddressCount());
utils = new SubnetUtils("192.168.0.1/28");
utils.setInclusiveHostCount(true);
info = utils.getInfo();
assertEquals("255.255.255.240",info.getNetmask());
assertEquals(16, info.getAddressCount());
utils = new SubnetUtils("192.168.0.1/29");
utils.setInclusiveHostCount(true);
info = utils.getInfo();
assertEquals("255.255.255.248",info.getNetmask());
assertEquals(8, info.getAddressCount());
utils = new SubnetUtils("192.168.0.1/30");
utils.setInclusiveHostCount(true);
info = utils.getInfo();
assertEquals("255.255.255.252",info.getNetmask());
assertEquals(4, info.getAddressCount());
utils = new SubnetUtils("192.168.0.1/31");
utils.setInclusiveHostCount(true);
info = utils.getInfo();
assertEquals("255.255.255.254",info.getNetmask());
assertEquals(2, info.getAddressCount());
utils = new SubnetUtils("192.168.0.1/32");
utils.setInclusiveHostCount(true);
info = utils.getInfo();
assertEquals("255.255.255.255",info.getNetmask());
assertEquals(1, info.getAddressCount());
new SubnetUtils("192.168.0.1/1");
}
public void testInvalidMasks(){
try {
new SubnetUtils("192.168.0.1/33");
fail("Should have thrown IllegalArgumentException");
} catch (IllegalArgumentException expected) {
}
try {
new SubnetUtils("192.168.0.1/0");
fail("Should have thrown IllegalArgumentException");
} catch (IllegalArgumentException expected) {
}
try {
new SubnetUtils("192.168.0.1","0.0.0.0");
fail("Should have thrown IllegalArgumentException");
} catch (IllegalArgumentException expected) {
}
}
}