--- /dev/null
+/*
+ * Copyright (c) 2013-2014 Cisco Systems, Inc. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+
+package org.opendaylight.controller.sal.utils;
+
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import java.util.Arrays;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class NetUtilsTest {
+
+ @Test
+ public void testByteArrayMethods() {
+ int ip = 8888;
+ Assert.assertTrue(NetUtils
+ .byteArray4ToInt(NetUtils.intToByteArray4(ip)) == ip);
+
+ ip = 0xffffffff;
+ Assert.assertTrue(NetUtils
+ .byteArray4ToInt(NetUtils.intToByteArray4(ip)) == ip);
+
+ ip = 0;
+ Assert.assertTrue(NetUtils
+ .byteArray4ToInt(NetUtils.intToByteArray4(ip)) == ip);
+
+ ip = 0x1fffffff;
+ Assert.assertTrue(NetUtils
+ .byteArray4ToInt(NetUtils.intToByteArray4(ip)) == ip);
+
+ ip = 0xfffffff;
+ Assert.assertTrue(NetUtils
+ .byteArray4ToInt(NetUtils.intToByteArray4(ip)) == ip);
+
+ ip = 0xf000ffff;
+ Assert.assertTrue(NetUtils
+ .byteArray4ToInt(NetUtils.intToByteArray4(ip)) == ip);
+
+ byte ba[] = { (byte) 0xf, (byte) 0xf, (byte) 0xf, (byte) 0xff };
+ Assert.assertTrue(Arrays.equals(ba, NetUtils.intToByteArray4(NetUtils
+ .byteArray4ToInt(ba))));
+
+ byte ba1[] = { (byte) 255, (byte) 255, (byte) 255, (byte) 255 };
+ Assert.assertTrue(Arrays.equals(ba1, NetUtils.intToByteArray4(NetUtils
+ .byteArray4ToInt(ba1))));
+
+ byte ba2[] = { (byte) 255, (byte) 0, (byte) 0, (byte) 0 };
+ Assert.assertTrue(Arrays.equals(ba2, NetUtils.intToByteArray4(NetUtils
+ .byteArray4ToInt(ba2))));
+
+ byte ba3[] = { (byte) 0, (byte) 0, (byte) 0, (byte) 0 };
+ Assert.assertTrue(Arrays.equals(ba3, NetUtils.intToByteArray4(NetUtils
+ .byteArray4ToInt(ba3))));
+
+ byte ba4[] = { (byte) 255, (byte) 128, (byte) 0, (byte) 0 };
+ Assert.assertTrue(Arrays.equals(ba4, NetUtils.intToByteArray4(NetUtils
+ .byteArray4ToInt(ba4))));
+ }
+
+ @Test
+ public void testByteArrayMethodsForLong() {
+ // Test of longToByteArray6 method.
+ byte ba[] = {
+ (byte) 0x11, (byte) 0x22, (byte) 0x33, (byte) 0x44,
+ (byte) 0x55, (byte) 0x66
+ };
+ long mac = 0x112233445566L;
+ Assert.assertTrue(Arrays.equals(ba, NetUtils.longToByteArray6(mac)));
+
+ byte ba1[] = {
+ (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff,
+ (byte) 0xff, (byte) 0xff
+ };
+ long mac1 = 0xffffffffffffL;
+ Assert.assertTrue(Arrays.equals(ba1, NetUtils.longToByteArray6(mac1)));
+
+ byte ba2[] = {
+ (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
+ (byte) 0x00, (byte) 0x00
+ };
+ long mac2 = 0x000000000000L;
+ Assert.assertTrue(Arrays.equals(ba2, NetUtils.longToByteArray6(mac2)));
+
+ byte ba3[] = {
+ (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0x00,
+ (byte) 0x00, (byte) 0x00
+ };
+ long mac3 = 0xffffff000000L;
+ Assert.assertTrue(Arrays.equals(ba3, NetUtils.longToByteArray6(mac3)));
+
+ byte ba4[] = {
+ (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0xff,
+ (byte) 0xff, (byte) 0xff
+ };
+ long mac4 = 0x000000ffffffL;
+ Assert.assertTrue(Arrays.equals(ba4, NetUtils.longToByteArray6(mac4)));
+
+ // Convert a long number to a byte array,
+ // and revert it to the long number again.
+ Assert.assertTrue(NetUtils
+ .byteArray6ToLong(NetUtils.longToByteArray6(mac)) == mac);
+
+ Assert.assertTrue(NetUtils
+ .byteArray6ToLong(NetUtils.longToByteArray6(mac1)) == mac1);
+
+ Assert.assertTrue(NetUtils
+ .byteArray6ToLong(NetUtils.longToByteArray6(mac2)) == mac2);
+
+ Assert.assertTrue(NetUtils
+ .byteArray6ToLong(NetUtils.longToByteArray6(mac3)) == mac3);
+
+ Assert.assertTrue(NetUtils
+ .byteArray6ToLong(NetUtils.longToByteArray6(mac4)) == mac4);
+
+ // Convert a byte array to a long nubmer,
+ // and revert it to the byte array again.
+ Assert.assertTrue(Arrays.equals(ba,
+ NetUtils.longToByteArray6(NetUtils.byteArray6ToLong(ba))));
+
+ Assert.assertTrue(Arrays.equals(ba1,
+ NetUtils.longToByteArray6(NetUtils.byteArray6ToLong(ba1))));
+
+ Assert.assertTrue(Arrays.equals(ba2,
+ NetUtils.longToByteArray6(NetUtils.byteArray6ToLong(ba2))));
+
+ Assert.assertTrue(Arrays.equals(ba3,
+ NetUtils.longToByteArray6(NetUtils.byteArray6ToLong(ba3))));
+
+ Assert.assertTrue(Arrays.equals(ba4,
+ NetUtils.longToByteArray6(NetUtils.byteArray6ToLong(ba4))));
+
+ // Test of paramter validation of byteArray6ToLong method.
+ byte array5[] = {
+ (byte) 0x11, (byte) 0x22, (byte) 0x33, (byte) 0x44
+ };
+ Assert.assertEquals(0, NetUtils.byteArray6ToLong(array5));
+
+ byte array7[] = {
+ (byte) 0x11, (byte) 0x22, (byte) 0x33, (byte) 0x44,
+ (byte) 0x55, (byte) 0x66, (byte) 0x77
+ };
+ Assert.assertEquals(0, NetUtils.byteArray6ToLong(array7));
+
+ byte arrayNull[] = null;
+ Assert.assertEquals(0, NetUtils.byteArray6ToLong(arrayNull));
+ }
+
+ @Test
+ public void testInetMethods() throws UnknownHostException {
+ int ip = 0xfffffff0;
+ InetAddress inet = InetAddress.getByName("255.255.255.240");
+ Assert.assertTrue(inet.equals(NetUtils.getInetAddress(ip)));
+
+ ip = 0;
+ inet = InetAddress.getByName("0.0.0.0");
+ Assert.assertTrue(inet.equals(NetUtils.getInetAddress(ip)));
+
+ ip = 0x9ffff09;
+ inet = InetAddress.getByName("9.255.255.9");
+ Assert.assertTrue(inet.equals(NetUtils.getInetAddress(ip)));
+ }
+
+ @Test
+ public void testMasksV4() throws UnknownHostException {
+
+ InetAddress mask = InetAddress.getByName("128.0.0.0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(1, false)));
+
+ mask = InetAddress.getByName("192.0.0.0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(2, false)));
+
+ mask = InetAddress.getByName("224.0.0.0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(3, false)));
+
+ mask = InetAddress.getByName("240.0.0.0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(4, false)));
+
+ mask = InetAddress.getByName("248.0.0.0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(5, false)));
+
+ mask = InetAddress.getByName("252.0.0.0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(6, false)));
+
+ mask = InetAddress.getByName("254.0.0.0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(7, false)));
+
+ mask = InetAddress.getByName("255.0.0.0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(8, false)));
+
+ mask = InetAddress.getByName("255.128.0.0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(9, false)));
+
+ mask = InetAddress.getByName("255.192.0.0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(10, false)));
+
+ mask = InetAddress.getByName("255.224.0.0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(11, false)));
+
+ mask = InetAddress.getByName("255.240.0.0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(12, false)));
+
+ mask = InetAddress.getByName("255.248.0.0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(13, false)));
+
+ mask = InetAddress.getByName("255.252.0.0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(14, false)));
+
+ mask = InetAddress.getByName("255.254.0.0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(15, false)));
+
+ mask = InetAddress.getByName("255.255.0.0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(16, false)));
+
+ mask = InetAddress.getByName("255.255.128.0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(17, false)));
+
+ mask = InetAddress.getByName("255.255.192.0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(18, false)));
+
+ mask = InetAddress.getByName("255.255.224.0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(19, false)));
+
+ mask = InetAddress.getByName("255.255.240.0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(20, false)));
+
+ mask = InetAddress.getByName("255.255.248.0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(21, false)));
+
+ mask = InetAddress.getByName("255.255.252.0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(22, false)));
+
+ mask = InetAddress.getByName("255.255.254.0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(23, false)));
+
+ mask = InetAddress.getByName("255.255.255.0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(24, false)));
+
+ mask = InetAddress.getByName("255.255.255.128");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(25, false)));
+
+ mask = InetAddress.getByName("255.255.255.192");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(26, false)));
+
+ mask = InetAddress.getByName("255.255.255.224");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(27, false)));
+
+ mask = InetAddress.getByName("255.255.255.240");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(28, false)));
+
+ mask = InetAddress.getByName("255.255.255.248");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(29, false)));
+
+ mask = InetAddress.getByName("255.255.255.252");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(30, false)));
+
+ mask = InetAddress.getByName("255.255.255.254");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(31, false)));
+
+ mask = InetAddress.getByName("255.255.255.255");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(32, false)));
+ }
+
+ @Test
+ public void testMasksV6() throws UnknownHostException {
+
+ InetAddress mask = InetAddress.getByName("ff00::0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(8, true)));
+
+ mask = InetAddress.getByName("8000::0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(1, true)));
+
+ mask = InetAddress.getByName("f800::0");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(5, true)));
+
+ mask = InetAddress.getByName("ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffe");
+ Assert.assertTrue(mask.equals(NetUtils.getInetNetworkMask(127, true)));
+ }
+
+ @Test
+ public void testGetSubnetLen() {
+
+ byte address[] = { (byte) 128, (byte) 0, (byte) 0, 0 };
+ Assert.assertTrue(NetUtils.getSubnetMaskLength(address) == 1);
+
+ byte address1[] = { (byte) 255, 0, 0, 0 };
+ Assert.assertTrue(NetUtils.getSubnetMaskLength(address1) == 8);
+
+ byte address2[] = { (byte) 255, (byte) 255, (byte) 248, 0 };
+ Assert.assertTrue(NetUtils.getSubnetMaskLength(address2) == 21);
+
+ byte address4[] = { (byte) 255, (byte) 255, (byte) 255, (byte) 254 };
+ Assert.assertTrue(NetUtils.getSubnetMaskLength(address4) == 31);
+
+ byte address5[] = { (byte) 255, (byte) 255, (byte) 255, (byte) 255, (byte) 255, (byte) 255, (byte) 255,
+ (byte) 255, (byte) 255, (byte) 255, (byte) 255, (byte) 255, (byte) 255, (byte) 255, (byte) 255,
+ (byte) 255 };
+ Assert.assertTrue(NetUtils.getSubnetMaskLength(address5) == 128);
+
+ byte address6[] = { (byte) 255, (byte) 255, (byte) 255, (byte) 255, (byte) 255, (byte) 255, (byte) 255,
+ (byte) 255, (byte) 255, (byte) 255, (byte) 255, (byte) 255, (byte) 255, (byte) 255, (byte) 255,
+ (byte) 254 };
+ Assert.assertTrue(NetUtils.getSubnetMaskLength(address6) == 127);
+
+ byte address7[] = { (byte) 255, (byte) 255, (byte) 255, (byte) 255, (byte) 255, (byte) 255, (byte) 255,
+ (byte) 255, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0 };
+ Assert.assertTrue(NetUtils.getSubnetMaskLength(address7) == 64);
+
+ byte address8[] = { (byte) 255, (byte) 255, (byte) 255, (byte) 255, (byte) 255, (byte) 255, (byte) 255,
+ (byte) 254, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0 };
+ Assert.assertTrue(NetUtils.getSubnetMaskLength(address8) == 63);
+
+ byte address9[] = { (byte) 255, (byte) 255, (byte) 255, (byte) 255, (byte) 255, (byte) 255, (byte) 128,
+ (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0 };
+ Assert.assertTrue(NetUtils.getSubnetMaskLength(address9) == 49);
+
+ byte address10[] = { (byte) 128, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0,
+ (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0 };
+ Assert.assertTrue(NetUtils.getSubnetMaskLength(address10) == 1);
+
+ byte address11[] = { (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0,
+ (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0, (byte) 0 };
+ Assert.assertTrue(NetUtils.getSubnetMaskLength(address11) == 0);
+ }
+
+ @Test
+ public void testGetSubnetPrefix() throws UnknownHostException {
+ InetAddress ip = InetAddress.getByName("192.128.64.252");
+ int maskLen = 25;
+ Assert.assertTrue(NetUtils.getSubnetPrefix(ip, maskLen).equals(
+ InetAddress.getByName("192.128.64.128")));
+ }
+
+ @Test
+ public void testIsIPv6Valid() throws UnknownHostException {
+ Assert.assertTrue(NetUtils
+ .isIPv6AddressValid("fe80:0000:0000:0000:0204:61ff:fe9d:f156")); //normal ipv6
+ Assert.assertTrue(NetUtils
+ .isIPv6AddressValid("fe80:0:0:0:204:61ff:fe9d:f156")); //no leading zeroes
+ Assert.assertTrue(NetUtils
+ .isIPv6AddressValid("fe80::204:61ff:fe9d:f156")); //zeroes to ::
+ Assert
+ .assertTrue(NetUtils
+ .isIPv6AddressValid("fe80:0000:0000:0000:0204:61ff:254.157.241.86")); // ipv4 ending
+ Assert.assertTrue(NetUtils
+ .isIPv6AddressValid("fe80:0:0:0:0204:61ff:254.157.241.86")); // no leading zeroes, ipv4 end
+ Assert.assertTrue(NetUtils
+ .isIPv6AddressValid("fe80::204:61ff:254.157.241.86")); // zeroes ::, no leading zeroes
+
+ Assert.assertTrue(NetUtils.isIPv6AddressValid("2001::")); //link-local prefix
+ Assert.assertTrue(NetUtils.isIPv6AddressValid("::1")); //localhost
+ Assert.assertTrue(NetUtils.isIPv6AddressValid("fe80::")); //global-unicast
+ Assert.assertFalse(NetUtils.isIPv6AddressValid("abcd")); //not valid
+ Assert.assertFalse(NetUtils.isIPv6AddressValid("1")); //not valid
+ Assert.assertFalse(NetUtils
+ .isIPv6AddressValid("fe80:0:0:0:204:61ff:fe9d")); //not valid, too short
+ Assert.assertFalse(NetUtils
+ .isIPv6AddressValid("fe80:::0:0:0:204:61ff:fe9d")); //not valid
+ Assert.assertFalse(NetUtils.isIPv6AddressValid("192.168.1.1")); //not valid,ipv4
+ Assert
+ .assertFalse(NetUtils
+ .isIPv6AddressValid("2001:0000:1234:0000:10001:C1C0:ABCD:0876")); //not valid, extra number
+ Assert
+ .assertFalse(NetUtils
+ .isIPv6AddressValid("20010:0000:1234:0000:10001:C1C0:ABCD:0876")); //not valid, extra number
+
+ Assert
+ .assertTrue(NetUtils
+ .isIPv6AddressValid("2001:0DB8:0000:CD30:0000:0000:0000:0000/60")); //full with mask
+ Assert.assertTrue(NetUtils.isIPv6AddressValid("2001:0DB8:0:CD30::/64")); //shortened with mask
+ Assert.assertTrue(NetUtils.isIPv6AddressValid("2001:0DB8:0:CD30::/0")); //0 subnet with mask
+ Assert.assertTrue(NetUtils.isIPv6AddressValid("::1/128")); //localhost 128 mask
+
+ Assert.assertFalse(NetUtils.isIPv6AddressValid("124.15.6.89/60")); //invalid, ip with mask
+ Assert
+ .assertFalse(NetUtils
+ .isIPv6AddressValid("2001:0DB8:0000:CD30:0000:0000:0000:0000/130")); //invalid, mask >128
+ Assert
+ .assertFalse(NetUtils
+ .isIPv6AddressValid("2001:0DB8:0:CD30::/-5")); //invalid, mask < 0
+ Assert.assertFalse(NetUtils
+ .isIPv6AddressValid("fe80:::0:0:0:204:61ff:fe9d/64")); //not valid ip, valid netmask
+ Assert.assertFalse(NetUtils
+ .isIPv6AddressValid("fe80:::0:0:0:204:61ff:fe9d/-1")); //not valid both
+
+ }
+
+ @Test
+ public void testInetAddressConflict() throws UnknownHostException {
+
+ // test a ipv4 testAddress in the same subnet as the filter
+ // the method should return false as there is no conflict
+ Assert.assertFalse(NetUtils.inetAddressConflict(
+ InetAddress.getByName("9.9.1.1"),
+ InetAddress.getByName("9.9.1.0"), null,
+ InetAddress.getByName("255.255.255.0")));
+
+ // test a ipv4 testAddress not in the same subnet as the filter
+ // the method should return true as there is a conflict
+ Assert.assertTrue(NetUtils.inetAddressConflict(
+ InetAddress.getByName("9.9.2.1"),
+ InetAddress.getByName("9.9.1.0"), null,
+ InetAddress.getByName("255.255.255.0")));
+
+ // test a ipv4 testAddress more generic than the filter
+ // the method should return true as there is a conflict
+ Assert.assertTrue(NetUtils.inetAddressConflict(
+ InetAddress.getByName("9.9.1.1"),
+ InetAddress.getByName("9.9.1.0"),
+ InetAddress.getByName("255.255.0.0"),
+ InetAddress.getByName("255.255.255.0")));
+
+ // test a ipv4 testAddress less generic than the filter and in the same
+ // subnet as the filter
+ // the method should return false as there is no conflict
+ Assert.assertFalse(NetUtils.inetAddressConflict(
+ InetAddress.getByName("9.9.1.0"),
+ InetAddress.getByName("9.9.0.0"),
+ InetAddress.getByName("255.255.255.0"),
+ InetAddress.getByName("255.255.0.0")));
+
+ // test a ipv4 testAddress less generic than the filter and not in the
+ // same subnet as the filter
+ // the method should return true as there is a conflict
+ Assert.assertTrue(NetUtils.inetAddressConflict(
+ InetAddress.getByName("9.8.1.0"),
+ InetAddress.getByName("9.9.0.0"),
+ InetAddress.getByName("255.255.255.0"),
+ InetAddress.getByName("255.255.0.0")));
+
+ }
+
+ @Test
+ public void testIPAddressValidity() {
+ Assert.assertFalse(NetUtils.isIPAddressValid(null));
+ Assert.assertFalse(NetUtils.isIPAddressValid("abc"));
+ Assert.assertFalse(NetUtils.isIPAddressValid("1.1.1"));
+ Assert.assertFalse(NetUtils.isIPAddressValid("1.1.1.1/49"));
+
+ Assert.assertTrue(NetUtils.isIPAddressValid("1.1.1.1"));
+ Assert.assertTrue(NetUtils.isIPAddressValid("1.1.1.1/32"));
+ Assert.assertTrue(NetUtils
+ .isIPAddressValid("2001:420:281:1004:407a:57f4:4d15:c355"));
+ }
+
+ @Test
+ public void testGetUnsignedByte() {
+ Assert.assertEquals(0, NetUtils.getUnsignedByte((byte) 0x00));
+ Assert.assertEquals(1, NetUtils.getUnsignedByte((byte) 0x01));
+ Assert.assertEquals(127, NetUtils.getUnsignedByte((byte) 0x7f));
+
+ Assert.assertEquals(128, NetUtils.getUnsignedByte((byte) 0x80));
+ Assert.assertEquals(255, NetUtils.getUnsignedByte((byte) 0xff));
+ }
+
+ @Test
+ public void testGetUnsignedShort() {
+ Assert.assertEquals(0, NetUtils.getUnsignedShort((short) 0x0000));
+ Assert.assertEquals(1, NetUtils.getUnsignedShort((short) 0x0001));
+ Assert.assertEquals(32767, NetUtils.getUnsignedShort((short) 0x7fff));
+
+ Assert.assertEquals(32768, NetUtils.getUnsignedShort((short) 0x8000));
+ Assert.assertEquals(65535, NetUtils.getUnsignedShort((short) 0xffff));
+ }
+
+ @Test
+ public void testMulticastMACAddr() {
+ byte[] empty = new byte[0];
+ Assert.assertFalse(NetUtils.isUnicastMACAddr(empty));
+ Assert.assertFalse(NetUtils.isMulticastMACAddr(empty));
+
+ byte[] bcast = {
+ (byte)0xff, (byte)0xff, (byte)0xff,
+ (byte)0xff, (byte)0xff, (byte)0xff,
+ };
+ Assert.assertFalse(NetUtils.isUnicastMACAddr(bcast));
+ Assert.assertFalse(NetUtils.isMulticastMACAddr(bcast));
+
+ byte[] firstOctet = {
+ (byte)0x00, (byte)0x20, (byte)0x80, (byte)0xfe,
+ };
+ for (int len = 1; len <= 10; len++) {
+ byte[] ba = new byte[len];
+ boolean valid = (len == 6);
+ for (byte first: firstOctet) {
+ ba[0] = first;
+ Assert.assertFalse(NetUtils.isMulticastMACAddr(ba));
+ Assert.assertEquals(valid, NetUtils.isUnicastMACAddr(ba));
+
+ ba[0] |= (byte)0x01;
+ Assert.assertEquals(valid, NetUtils.isMulticastMACAddr(ba));
+ Assert.assertFalse(NetUtils.isUnicastMACAddr(ba));
+ }
+ }
+ }
+}
Code Review / controller.git / blobdiff