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cloudstack/utils/src/test/java/com/cloud/utils/net/NetUtilsTest.java

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//
// 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 com.cloud.utils.net;
import static org.hamcrest.Matchers.anyOf;
import static org.hamcrest.Matchers.contains;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.greaterThanOrEqualTo;
import static org.hamcrest.Matchers.lessThanOrEqualTo;
import static org.hamcrest.Matchers.not;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
import java.math.BigInteger;
import java.util.SortedSet;
import java.util.TreeSet;
import org.apache.log4j.Logger;
import org.junit.Test;
import com.googlecode.ipv6.IPv6Address;
public class NetUtilsTest {
private static final Logger s_logger = Logger.getLogger(NetUtilsTest.class);
@Test
public void testGetRandomIpFromCidrWithSize24() throws Exception {
final String cidr = "192.168.124.1";
final int size = 24;
final int netCharacters = 12;
final long ip = NetUtils.getRandomIpFromCidr(cidr, size, new TreeSet<Long>());
assertThat("The ip " + NetUtils.long2Ip(ip) + " retrieved must be within the cidr " + cidr + "/" + size, cidr.substring(0, netCharacters), equalTo(NetUtils.long2Ip(ip)
.substring(0, netCharacters)));
}
@Test
public void testGetRandomIpFromCidrWithSize16() throws Exception {
final String cidr = "192.168.124.1";
final int size = 16;
final int netCharacters = 8;
final long ip = NetUtils.getRandomIpFromCidr(cidr, 16, new TreeSet<Long>());
assertThat("The ip " + NetUtils.long2Ip(ip) + " retrieved must be within the cidr " + cidr + "/" + size, cidr.substring(0, netCharacters), equalTo(NetUtils.long2Ip(ip)
.substring(0, netCharacters)));
}
@Test
public void testGetRandomIpFromCidrWithSize8() throws Exception {
final String cidr = "192.168.124.1";
final int size = 8;
final int netCharacters = 4;
final long ip = NetUtils.getRandomIpFromCidr(cidr, 16, new TreeSet<Long>());
assertThat("The ip " + NetUtils.long2Ip(ip) + " retrieved must be within the cidr " + cidr + "/" + size, cidr.substring(0, netCharacters), equalTo(NetUtils.long2Ip(ip)
.substring(0, netCharacters)));
}
@Test
public void testGetRandomIpFromCidrUsignAvoid() throws Exception {
final String cidr = "192.168.124.1";
final int size = 30;
final SortedSet<Long> avoid = new TreeSet<Long>();
long ip = NetUtils.getRandomIpFromCidr(cidr, size, avoid);
assertThat("We should be able to retrieve an ip on the first call.", ip, not(equalTo(-1L)));
avoid.add(ip);
ip = NetUtils.getRandomIpFromCidr(cidr, size, avoid);
assertThat("We should be able to retrieve an ip on the second call.", ip, not(equalTo(-1L)));
assertThat("ip returned is not in the avoid list", avoid, not(contains(ip)));
avoid.add(ip);
ip = NetUtils.getRandomIpFromCidr(cidr, size, avoid);
assertThat("We should be able to retrieve an ip on the third call.", ip, not(equalTo(-1L)));
assertThat("ip returned is not in the avoid list", avoid, not(contains(ip)));
avoid.add(ip);
ip = NetUtils.getRandomIpFromCidr(cidr, size, avoid);
assertEquals("This should be -1 because we ran out of ip addresses: " + ip, ip, -1);
}
@Test
public void testIsValidS2SVpnPolicy() {
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,,,"));
}
@Test
public void testGetIp6FromRange() {
assertEquals(NetUtils.getIp6FromRange("1234:5678::1-1234:5678::1"), "1234:5678::1");
for (int i = 0; i < 5; i++) {
final String ip = NetUtils.getIp6FromRange("1234:5678::1-1234:5678::2");
assertThat(ip, anyOf(equalTo("1234:5678::1"), equalTo("1234:5678::2")));
s_logger.info("IP is " + ip);
}
String ipString = null;
final IPv6Address ipStart = IPv6Address.fromString("1234:5678::1");
final 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);
final IPv6Address ip = IPv6Address.fromString(ipString);
assertThat(ip, greaterThanOrEqualTo(ipStart));
assertThat(ip, lessThanOrEqualTo(ipEnd));
}
}
@Test
public void testCountIp6InRange() {
assertEquals(new BigInteger("2"), NetUtils.countIp6InRange("1234:5678::1-1234:5678::2"));
}
@Test
public void testCountIp6InRangeWithInvalidRange() {
assertEquals(null, NetUtils.countIp6InRange("1234:5678::2-1234:5678::0"));
}
@Test
public void testCountIp6InRangeWithNullStart() {
assertEquals(null, NetUtils.countIp6InRange("-1234:5678::0"));
}
@Test
public void testCountIp6InRangeWithNoEnd() {
assertEquals(new BigInteger("1"), NetUtils.countIp6InRange("1234:5678::2"));
}
@Test
public void testGetIp6CidrSize() {
assertEquals(NetUtils.getIp6CidrSize("1234:5678::1/32"), 32);
assertEquals(NetUtils.getIp6CidrSize("1234:5678::1"), 0);
}
@Test
public void testIsValidIp6Cidr() {
assertTrue(NetUtils.isValidIp6Cidr("1234:5678::1/64"));
assertFalse(NetUtils.isValidIp6Cidr("1234:5678::1"));
}
@Test
public void testIsValidIpv6() {
assertTrue(NetUtils.isValidIpv6("fc00::1"));
assertFalse(NetUtils.isValidIpv6(""));
assertFalse(NetUtils.isValidIpv6(null));
assertFalse(NetUtils.isValidIpv6("1234:5678::1/64"));
}
@Test
public void testIsIp6InRange() {
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"));
}
@Test
public void testIsIp6InNetwork() {
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
public void testGetNextIp6InRange() {
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
public void testIsIp6RangeOverlap() {
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
public void testStandardizeIp6Address() {
assertEquals(NetUtils.standardizeIp6Address("1234:0000:0000:5678:0000:0000:ABCD:0001"), "1234::5678:0:0:abcd:1");
assertEquals(NetUtils.standardizeIp6Cidr("1234:0000:0000:5678:0000:0000:ABCD:0001/64"), "1234:0:0:5678::/64");
}
@Test
public void testGenerateUriForPvlan() {
assertEquals("pvlan://123-i456", NetUtils.generateUriForPvlan("123", "456").toString());
}
@Test
public void testGetPrimaryPvlanFromUri() {
assertEquals("123", NetUtils.getPrimaryPvlanFromUri(NetUtils.generateUriForPvlan("123", "456")));
}
@Test
public void testGetIsolatedPvlanFromUri() {
assertEquals("456", NetUtils.getIsolatedPvlanFromUri(NetUtils.generateUriForPvlan("123", "456")));
}
@Test
public void testIsValidCIDR() throws Exception {
//Test to check IP Range of 2 CIDR
final String cidrFirst = "10.0.144.0/20";
final String cidrSecond = "10.0.151.0/20";
final String cidrThird = "10.0.144.0/21";
assertTrue(NetUtils.isValidCIDR(cidrFirst));
assertTrue(NetUtils.isValidCIDR(cidrSecond));
assertTrue(NetUtils.isValidCIDR(cidrThird));
}
@Test
public void testIsValidCidrList() throws Exception {
final String cidrFirst = "10.0.144.0/20,1.2.3.4/32,5.6.7.8/24";
final String cidrSecond = "10.0.151.0/20,129.0.0.0/4";
final String cidrThird = "10.0.144.0/21";
assertTrue(NetUtils.isValidCidrList(cidrFirst));
assertTrue(NetUtils.isValidCidrList(cidrSecond));
assertTrue(NetUtils.isValidCidrList(cidrThird));
}
@Test
public void testIsSameIpRange() {
final String cidrFirst = "10.0.144.0/20";
final String cidrSecond = "10.0.151.0/20";
final String cidrThird = "10.0.144.0/21";
//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"));
}
@Test
public void testGenerateMacOnIncrease() {
String mac = "06:01:23:00:45:67";
assertEquals("06:01:25:00:45:67", NetUtils.generateMacOnIncrease(mac, 2));
assertEquals("06:01:33:00:45:67", NetUtils.generateMacOnIncrease(mac, 16));
mac = "06:ff:ff:00:45:67";
assertEquals("06:00:00:00:45:67", NetUtils.generateMacOnIncrease(mac, 1));
assertEquals("06:00:0f:00:45:67", NetUtils.generateMacOnIncrease(mac, 16));
}
@Test
public void testGetLocalIPString() {
assertNotNull(NetUtils.getLocalIPString());
}
@Test
public void testSameIsolationId() {
assertTrue(NetUtils.isSameIsolationId("1", "vlan://1"));
assertTrue(NetUtils.isSameIsolationId("", null));
assertTrue(NetUtils.isSameIsolationId("UnTagged", "vlan://uNtAGGED"));
assertFalse(NetUtils.isSameIsolationId("2", "vlan://uNtAGGED"));
assertFalse(NetUtils.isSameIsolationId("2", "vlan://3"));
assertFalse(NetUtils.isSameIsolationId("bla", null));
}
@Test
public void testValidateGuestCidr() throws Exception {
final String guestCidr = "192.168.1.0/24";
assertTrue(NetUtils.validateGuestCidr(guestCidr));
}
@Test
public void testMac2Long() {
assertEquals(0l, NetUtils.mac2Long("00:00:00:00:00:00"));
assertEquals(1l, NetUtils.mac2Long("00:00:00:00:00:01"));
assertEquals(0xFFl, NetUtils.mac2Long("00:00:00:00:00:FF"));
assertEquals(0xFFAAl, NetUtils.mac2Long("00:00:00:00:FF:AA"));
assertEquals(0x11FFAAl, NetUtils.mac2Long("00:00:00:11:FF:AA"));
assertEquals(0x12345678l, NetUtils.mac2Long("00:00:12:34:56:78"));
assertEquals(0x123456789Al, NetUtils.mac2Long("00:12:34:56:78:9A"));
assertEquals(0x123456789ABCl, NetUtils.mac2Long("12:34:56:78:9A:BC"));
}
@Test
public void testLong2Mac() {
assertEquals("00:00:00:00:00:00", NetUtils.long2Mac(0l));
assertEquals("00:00:00:00:00:01", NetUtils.long2Mac(1l));
assertEquals("00:00:00:00:00:ff", NetUtils.long2Mac(0xFFl));
assertEquals("00:00:00:00:ff:aa", NetUtils.long2Mac(0xFFAAl));
assertEquals("00:00:00:11:ff:aa", NetUtils.long2Mac(0x11FFAAl));
assertEquals("00:00:12:34:56:78", NetUtils.long2Mac(0x12345678l));
assertEquals("00:12:34:56:78:9a", NetUtils.long2Mac(0x123456789Al));
assertEquals("12:34:56:78:9a:bc", NetUtils.long2Mac(0x123456789ABCl));
}
@Test
public void testIp2Long() {
assertEquals(0x7f000001l, NetUtils.ip2Long("127.0.0.1"));
assertEquals(0xc0a80001l, NetUtils.ip2Long("192.168.0.1"));
assertEquals(0x08080808l, NetUtils.ip2Long("8.8.8.8"));
}
@Test
public void testLong2Ip() {
assertEquals("127.0.0.1", NetUtils.long2Ip(0x7f000001l));
assertEquals("192.168.0.1", NetUtils.long2Ip(0xc0a80001l));
assertEquals("8.8.8.8", NetUtils.long2Ip(0x08080808l));
}
@Test
public void test31BitPrefixStart() {
final String ipAddress = "192.168.0.0";
final String cidr = "192.168.0.0/31";
final boolean isInRange = NetUtils.isIpWithtInCidrRange(ipAddress, cidr);
assertTrue("Check if the subnetUtils.setInclusiveHostCount(true) has been called.", isInRange);
}
@Test
public void test31BitPrefixEnd() {
final String ipAddress = "192.168.0.1";
final String cidr = "192.168.0.0/31";
final boolean isInRange = NetUtils.isIpWithtInCidrRange(ipAddress, cidr);
assertTrue("Check if the subnetUtils.setInclusiveHostCount(true) has been called.", isInRange);
}
@Test
public void test31BitPrefixFail() {
final String ipAddress = "192.168.0.2";
final String cidr = "192.168.0.0/31";
final boolean isInRange = NetUtils.isIpWithtInCidrRange(ipAddress, cidr);
assertFalse("Out of the range. Why did it return true?", isInRange);
}
@Test
public void test31BitPrefixIpRangesOverlapd() {
final String gw = "192.168.0.0";
String ip1;
String ip2;
for (int i = 1, j = 2; i <= 254; i++, j++) {
ip1 = "192.168.0." + i;
ip2 = "192.168.0." + j;
final boolean doesOverlap = NetUtils.ipRangesOverlap(ip1, ip2, gw, gw);
assertFalse("It should overlap, but it's a 31-bit ip", doesOverlap);
}
}
@Test
public void test31BitPrefixIpRangesOverlapdFail() {
String gw;
String ip1;
String ip2;
for (int i = 10, j = 12; i <= 254; i++, j++) {
gw = "192.168.0." + i;
ip1 = "192.168.0." + i;
ip2 = "192.168.0." + j;
final boolean doesOverlap = NetUtils.ipRangesOverlap(ip1, ip2, gw, gw);
assertTrue("It overlaps!", doesOverlap);
}
}
@Test
public void testIs31PrefixCidrFail() {
final String cidr = "10.10.0.0/32";
final boolean is31PrefixCidr = NetUtils.is31PrefixCidr(cidr);
assertFalse("It should fail! 32 bit prefix.", is31PrefixCidr);
}
@Test
public void testIs31PrefixCidr() {
final String cidr = "10.10.0.0/31";
final boolean is31PrefixCidr = NetUtils.is31PrefixCidr(cidr);
assertTrue("It should pass! 31 bit prefix.", is31PrefixCidr);
}
@Test
public void testGetCidrSubNet() {
final String cidr = "10.10.0.0/16";
String subnet = NetUtils.getCidrSubNet("10.10.10.10", 16);
assertTrue(NetUtils.isIpWithtInCidrRange(subnet, cidr));
}
}
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