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// 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
// 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,
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package com.cloud.utils.net;
import java.math.BigInteger;
import java.net.URI;
import java.util.SortedSet;
import java.util.TreeSet;
import junit.framework.TestCase;
import org.apache.log4j.Logger;
import org.junit.Test;
import com.googlecode.ipv6.IPv6Address;
public class NetUtilsTest extends TestCase {
private static final Logger s_logger = Logger.getLogger(NetUtilsTest.class);
@Test
public void testGetRandomIpFromCidr() {
String cidr = "192.168.124.1";
long ip = NetUtils.getRandomIpFromCidr(cidr, 24, new TreeSet<Long>());
assertEquals("The ip " + NetUtils.long2Ip(ip) + " retrieved must be within the cidr " + cidr + "/24", cidr.substring(0, 12), NetUtils.long2Ip(ip).substring(0, 12));
ip = NetUtils.getRandomIpFromCidr(cidr, 16, new TreeSet<Long>());
assertEquals("The ip " + NetUtils.long2Ip(ip) + " retrieved must be within the cidr " + cidr + "/16", cidr.substring(0, 8), NetUtils.long2Ip(ip).substring(0, 8));
ip = NetUtils.getRandomIpFromCidr(cidr, 8, new TreeSet<Long>());
assertEquals("The ip " + NetUtils.long2Ip(ip) + " retrieved must be within the cidr " + cidr + "/8", cidr.substring(0, 4), NetUtils.long2Ip(ip).substring(0, 4));
SortedSet<Long> avoid = new TreeSet<Long>();
ip = NetUtils.getRandomIpFromCidr(cidr, 30, avoid);
assertTrue("We should be able to retrieve an ip on the first call.", ip != -1);
avoid.add(ip);
ip = NetUtils.getRandomIpFromCidr(cidr, 30, avoid);
assertTrue("We should be able to retrieve an ip on the second call.", ip != -1);
assertTrue("ip returned is not in the avoid list", !avoid.contains(ip));
avoid.add(ip);
ip = NetUtils.getRandomIpFromCidr(cidr, 30, avoid);
assertTrue("We should be able to retrieve an ip on the third call.", ip != -1);
assertTrue("ip returned is not in the avoid list", !avoid.contains(ip));
avoid.add(ip);
ip = NetUtils.getRandomIpFromCidr(cidr, 30, avoid);
assertEquals("This should be -1 because we ran out of ip addresses: " + ip, ip, -1);
}
@Test
public void testVpnPolicy() {
assertTrue(NetUtils.isValidS2SVpnPolicy("aes128-sha1"));
assertTrue(NetUtils.isValidS2SVpnPolicy("3des-sha1"));
assertTrue(NetUtils.isValidS2SVpnPolicy("3des-sha1,aes256-sha1"));
assertTrue(NetUtils.isValidS2SVpnPolicy("3des-md5;modp1024"));
assertTrue(NetUtils.isValidS2SVpnPolicy("3des-sha1,aes128-sha1;modp1536"));
assertFalse(NetUtils.isValidS2SVpnPolicy("des-md5;modp1024,aes128-sha1;modp1536"));
assertFalse(NetUtils.isValidS2SVpnPolicy("des-sha1"));
assertFalse(NetUtils.isValidS2SVpnPolicy("abc-123,ase-sha1"));
assertFalse(NetUtils.isValidS2SVpnPolicy("de-sh,aes-sha1"));
assertFalse(NetUtils.isValidS2SVpnPolicy(""));
assertFalse(NetUtils.isValidS2SVpnPolicy(";modp1536"));
assertFalse(NetUtils.isValidS2SVpnPolicy(",aes;modp1536,,,"));
}
public void testIpv6() {
assertTrue(NetUtils.isValidIpv6("fc00::1"));
assertFalse(NetUtils.isValidIpv6(""));
assertFalse(NetUtils.isValidIpv6(null));
assertFalse(NetUtils.isValidIpv6("1234:5678::1/64"));
assertTrue(NetUtils.isValidIp6Cidr("1234:5678::1/64"));
assertFalse(NetUtils.isValidIp6Cidr("1234:5678::1"));
assertEquals(NetUtils.getIp6CidrSize("1234:5678::1/32"), 32);
assertEquals(NetUtils.getIp6CidrSize("1234:5678::1"), 0);
BigInteger two = new BigInteger("2");
assertEquals(NetUtils.countIp6InRange("1234:5678::1-1234:5678::2"), two);
assertEquals(NetUtils.countIp6InRange("1234:5678::2-1234:5678::0"), null);
assertEquals(NetUtils.getIp6FromRange("1234:5678::1-1234:5678::1"), "1234:5678::1");
for (int i = 0; i < 5; i ++) {
String ip = NetUtils.getIp6FromRange("1234:5678::1-1234:5678::2");
assertTrue(ip.equals("1234:5678::1") || ip.equals("1234:5678::2"));
s_logger.info("IP is " + ip);
}
String ipString = null;
IPv6Address ipStart = IPv6Address.fromString("1234:5678::1");
IPv6Address ipEnd = IPv6Address.fromString("1234:5678::ffff:ffff:ffff:ffff");
for (int i = 0; i < 10; i ++) {
ipString = NetUtils.getIp6FromRange(ipStart.toString() + "-" + ipEnd.toString());
s_logger.info("IP is " + ipString);
IPv6Address ip = IPv6Address.fromString(ipString);
assertTrue(ip.compareTo(ipStart) >= 0);
assertTrue(ip.compareTo(ipEnd) <= 0);
}
//Test isIp6RangeOverlap
assertFalse(NetUtils.isIp6RangeOverlap("1234:5678::1-1234:5678::ffff", "1234:5678:1::1-1234:5678:1::ffff"));
assertTrue(NetUtils.isIp6RangeOverlap("1234:5678::1-1234:5678::ffff", "1234:5678::2-1234:5678::f"));
assertTrue(NetUtils.isIp6RangeOverlap("1234:5678::f-1234:5678::ffff", "1234:5678::2-1234:5678::f"));
assertFalse(NetUtils.isIp6RangeOverlap("1234:5678::f-1234:5678::ffff", "1234:5678::2-1234:5678::e"));
assertFalse(NetUtils.isIp6RangeOverlap("1234:5678::f-1234:5678::f", "1234:5678::2-1234:5678::e"));
//Test getNextIp6InRange
String range = "1234:5678::1-1234:5678::8000:0000";
assertEquals(NetUtils.getNextIp6InRange("1234:5678::8000:0", range), "1234:5678::1");
assertEquals(NetUtils.getNextIp6InRange("1234:5678::7fff:ffff", range), "1234:5678::8000:0");
assertEquals(NetUtils.getNextIp6InRange("1234:5678::1", range), "1234:5678::2");
range = "1234:5678::1-1234:5678::ffff:ffff:ffff:ffff";
assertEquals(NetUtils.getNextIp6InRange("1234:5678::ffff:ffff:ffff:ffff", range), "1234:5678::1");
//Test isIp6InNetwork
assertFalse(NetUtils.isIp6InNetwork("1234:5678:abcd::1", "1234:5678::/64"));
assertTrue(NetUtils.isIp6InNetwork("1234:5678::1", "1234:5678::/64"));
assertTrue(NetUtils.isIp6InNetwork("1234:5678::ffff:ffff:ffff:ffff", "1234:5678::/64"));
assertTrue(NetUtils.isIp6InNetwork("1234:5678::", "1234:5678::/64"));
//Test isIp6InRange
assertTrue(NetUtils.isIp6InRange("1234:5678:abcd::1", "1234:5678:abcd::1-1234:5678:abcd::1"));
assertFalse(NetUtils.isIp6InRange("1234:5678:abcd::1", "1234:5678:abcd::2-1234:5678:abcd::1"));
assertFalse(NetUtils.isIp6InRange("1234:5678:abcd::1", null));
assertTrue(NetUtils.isIp6InRange("1234:5678:abcd::1", "1234:5678::1-1234:5679::1"));
}
public void testPvlan() {
URI uri = NetUtils.generateUriForPvlan("123", "456");
assertTrue(uri.toString().equals("pvlan://123-i456"));
assertTrue(NetUtils.getPrimaryPvlanFromUri(uri).equals("123"));
assertTrue(NetUtils.getIsolatedPvlanFromUri(uri).equals("456"));
}
public void testIsSameIpRange() {
//Test to check IP Range of 2 CIDRs
String cidrFirst = "10.0.144.0/20";
String cidrSecond = "10.0.151.0/20";
String cidrThird = "10.0.144.0/21";
assertTrue(NetUtils.isValidCIDR(cidrFirst));
assertTrue(NetUtils.isValidCIDR(cidrSecond));
assertTrue(NetUtils.isValidCIDR(cidrThird));
//Check for exactly same CIDRs
assertTrue(NetUtils.isSameIpRange(cidrFirst, cidrFirst));
//Check for 2 different CIDRs, but same IP Range
assertTrue(NetUtils.isSameIpRange(cidrFirst, cidrSecond));
//Check for 2 different CIDRs and different IP Range
assertFalse(NetUtils.isSameIpRange(cidrFirst, cidrThird));
//Check for Incorrect format of CIDR
assertFalse(NetUtils.isSameIpRange(cidrFirst, "10.3.6.5/50"));
}
public void testMacGenerateion() {
String mac = "06:01:23:00:45:67";
String newMac = NetUtils.generateMacOnIncrease(mac, 2);
assertTrue(newMac.equals("06:01:25:00:45:67"));
newMac = NetUtils.generateMacOnIncrease(mac, 16);
assertTrue(newMac.equals("06:01:33:00:45:67"));
mac = "06:ff:ff:00:45:67";
newMac = NetUtils.generateMacOnIncrease(mac, 1);
assertTrue(newMac.equals("06:00:00:00:45:67"));
newMac = NetUtils.generateMacOnIncrease(mac, 16);
assertTrue(newMac.equals("06:00:0f:00:45:67"));
}
@Test
public void testGetLocalIPString() {
assertNotNull(NetUtils.getLocalIPString());
}
@Test
public void testSameIsolationId() {
assertTrue(NetUtils.isSameIsolationId("1", "vlan://1"));
assertTrue(NetUtils.isSameIsolationId("", null));
assertFalse(NetUtils.isSameIsolationId("bla", null));
}
}