| /* |
| * Copyright 2015-present Open Networking Foundation |
| * |
| * Licensed 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.onlab.packet; |
| |
| import org.apache.commons.lang3.StringUtils; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import java.nio.ByteBuffer; |
| |
| import static junit.framework.TestCase.assertNotNull; |
| import static org.hamcrest.core.Is.is; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertThat; |
| import static org.junit.Assert.assertTrue; |
| import static org.onlab.packet.ICMP.TYPE_ECHO_REQUEST; |
| import static org.onlab.packet.ICMP6.ECHO_REQUEST; |
| import static org.onlab.packet.IPv4.PROTOCOL_ICMP; |
| import static org.onlab.packet.MPLS.PROTOCOL_IPV4; |
| import static org.onlab.packet.MPLS.PROTOCOL_IPV6; |
| import static org.onlab.packet.MPLS.PROTOCOL_MPLS; |
| |
| /** |
| * Unit tests for MPLS class. |
| */ |
| public class MplsTest { |
| |
| private Deserializer<MPLS> deserializer; |
| |
| private int label = 1048575; |
| private byte bos = 1; |
| private byte ttl = 20; |
| private byte protocol = PROTOCOL_IPV4; |
| |
| private byte[] bytes; |
| private byte[] truncatedBytes; |
| |
| // Define packets to deserialize |
| private static final MacAddress SRC_MAC = MacAddress.valueOf("00:00:00:00:00:01"); |
| private static final MacAddress DST_MAC = MacAddress.valueOf("00:00:00:00:00:02"); |
| |
| private static final ICMPEcho ICMP_ECHO = new ICMPEcho() |
| .setIdentifier((short) 0) |
| .setSequenceNum((short) 0); |
| |
| private static final ICMP ICMP = (ICMP) new ICMP() |
| .setIcmpType(TYPE_ECHO_REQUEST) |
| .setPayload(ICMP_ECHO); |
| |
| private static final Ip4Address SRC_IPV4 = Ip4Address.valueOf("10.0.1.1"); |
| private static final Ip4Address DST_IPV4 = Ip4Address.valueOf("10.0.0.254"); |
| |
| private static final IPv4 IPV4 = (IPv4) new IPv4() |
| .setDestinationAddress(DST_IPV4.toInt()) |
| .setSourceAddress(SRC_IPV4.toInt()) |
| .setTtl((byte) 64) |
| .setProtocol(PROTOCOL_ICMP) |
| .setPayload(ICMP); |
| |
| private static final ICMP6 ICMP6 = new ICMP6() |
| .setIcmpType(ECHO_REQUEST); |
| |
| private static final Ip6Address SRC_IPV6 = Ip6Address.valueOf("2000::101"); |
| private static final Ip6Address DST_IPV6 = Ip6Address.valueOf("2000::ff"); |
| |
| private static final IPv6 IPV6 = (IPv6) new IPv6() |
| .setDestinationAddress(DST_IPV6.toOctets()) |
| .setSourceAddress(SRC_IPV6.toOctets()) |
| .setHopLimit((byte) 255) |
| .setNextHeader(IPv6.PROTOCOL_ICMP6) |
| .setPayload(ICMP6); |
| |
| private static final MPLS MPLS_IPV4 = new MPLS(); |
| private static final MPLS MPLS_BOS_IPV4 = new MPLS(); |
| private static final MPLS MPLS_IPV6 = new MPLS(); |
| private static final MPLS MPLS_BOS_IPV6 = new MPLS(); |
| |
| private static final Ethernet ETH_IPV4 = (Ethernet) new Ethernet() |
| .setEtherType(Ethernet.MPLS_UNICAST) |
| .setDestinationMACAddress(DST_MAC) |
| .setSourceMACAddress(SRC_MAC) |
| .setPayload(MPLS_IPV4); |
| |
| private static final Ethernet ETH_IPV6 = (Ethernet) new Ethernet() |
| .setEtherType(Ethernet.MPLS_UNICAST) |
| .setDestinationMACAddress(DST_MAC) |
| .setSourceMACAddress(SRC_MAC) |
| .setPayload(MPLS_IPV6); |
| |
| @Before |
| public void setUp() throws Exception { |
| // Setup packets |
| deserializer = MPLS.deserializer(); |
| |
| byte[] ipv4 = IPV4.serialize(); |
| ByteBuffer bb = ByteBuffer.allocate(MPLS.HEADER_LENGTH + IPV4.getTotalLength()); |
| bb.putInt(((label & 0x000fffff) << 12) | ((bos & 0x1) << 8 | (ttl & 0xff))); |
| bb.put(ipv4); |
| |
| bytes = bb.array(); |
| |
| bb = ByteBuffer.allocate(MPLS.HEADER_LENGTH); |
| bb.putInt(((label & 0x000fffff) << 12) | ((bos & 0x1) << 8 | (ttl & 0xff))); |
| |
| truncatedBytes = bb.array(); |
| |
| MPLS_BOS_IPV4.setLabel(101); |
| MPLS_BOS_IPV4.setPayload(IPV4); |
| MPLS_IPV4.setLabel(1); |
| MPLS_IPV4.setPayload(MPLS_BOS_IPV4); |
| ETH_IPV4.setPayload(MPLS_IPV4); |
| |
| MPLS_BOS_IPV6.setLabel(201); |
| MPLS_BOS_IPV6.setPayload(IPV6); |
| MPLS_IPV6.setLabel(2); |
| MPLS_IPV6.setPayload(MPLS_BOS_IPV6); |
| ETH_IPV6.setPayload(MPLS_IPV6); |
| } |
| |
| @Test |
| public void testDeserializeBadInput() throws Exception { |
| PacketTestUtils.testDeserializeBadInput(deserializer); |
| } |
| |
| @Test |
| public void testDeserializeTruncated() throws Exception { |
| PacketTestUtils.testDeserializeTruncated(deserializer, truncatedBytes); |
| } |
| |
| /** |
| * Tests deserialize and getters. |
| */ |
| @Test |
| public void testDeserialize() throws Exception { |
| MPLS mpls = deserializer.deserialize(bytes, 0, bytes.length); |
| |
| assertEquals(label, mpls.label); |
| assertEquals(bos, mpls.bos); |
| assertEquals(ttl, mpls.ttl); |
| assertEquals(protocol, mpls.protocol); |
| } |
| |
| /** |
| * Tests toString. |
| */ |
| @Test |
| public void testToStringMpls() throws Exception { |
| MPLS mpls = deserializer.deserialize(bytes, 0, bytes.length); |
| String str = mpls.toString(); |
| |
| assertTrue(StringUtils.contains(str, "label=" + label)); |
| assertTrue(StringUtils.contains(str, "bos=" + bos)); |
| assertTrue(StringUtils.contains(str, "ttl=" + ttl)); |
| assertTrue(StringUtils.contains(str, "protocol=" + protocol)); |
| } |
| |
| @Test |
| public void testIpv4OverMplsDeserialize() throws Exception { |
| // Serialize |
| byte[] packet = ETH_IPV4.serialize(); |
| assertThat(MPLS_IPV4.protocol, is(PROTOCOL_MPLS)); |
| assertThat(MPLS_IPV4.bos, is((byte) 0)); |
| assertThat(MPLS_BOS_IPV4.protocol, is(PROTOCOL_IPV4)); |
| assertThat(MPLS_BOS_IPV4.bos, is((byte) 1)); |
| // Deserialize |
| Ethernet ethernet; |
| ethernet = Ethernet.deserializer().deserialize(packet, 0, packet.length); |
| |
| // Verify |
| assertNotNull(ethernet); |
| assertThat(ethernet.getSourceMAC(), is(ETH_IPV4.getSourceMAC())); |
| assertThat(ethernet.getDestinationMAC(), is(ETH_IPV4.getDestinationMAC())); |
| assertThat(ethernet.getEtherType(), is(Ethernet.MPLS_UNICAST)); |
| assertTrue(ethernet.getPayload() instanceof MPLS); |
| MPLS mpls = (MPLS) ethernet.getPayload(); |
| assertThat(mpls.getLabel(), is(1)); |
| assertThat(mpls.getTtl(), is((byte) 0)); |
| assertThat(mpls.protocol, is(PROTOCOL_MPLS)); |
| assertThat(mpls.bos, is((byte) 0)); |
| assertTrue(mpls.getPayload() instanceof MPLS); |
| mpls = (MPLS) mpls.getPayload(); |
| assertThat(mpls.getLabel(), is(101)); |
| assertThat(mpls.getTtl(), is((byte) 0)); |
| assertThat(mpls.protocol, is(PROTOCOL_IPV4)); |
| assertThat(mpls.bos, is((byte) 1)); |
| IPv4 ip = (IPv4) mpls.getPayload(); |
| assertThat(ip.getSourceAddress(), is(SRC_IPV4.toInt())); |
| assertThat(ip.getDestinationAddress(), is(DST_IPV4.toInt())); |
| assertTrue(ip.getPayload() instanceof ICMP); |
| ICMP icmp = (ICMP) ip.getPayload(); |
| assertThat(icmp.getIcmpType(), is(TYPE_ECHO_REQUEST)); |
| } |
| |
| @Test |
| public void testIpv6OverMplsDeserialize() throws Exception { |
| // Serialize |
| byte[] packet = ETH_IPV6.serialize(); |
| assertThat(MPLS_IPV6.protocol, is(PROTOCOL_MPLS)); |
| assertThat(MPLS_IPV6.bos, is((byte) 0)); |
| assertThat(MPLS_BOS_IPV6.protocol, is(PROTOCOL_IPV6)); |
| assertThat(MPLS_BOS_IPV6.bos, is((byte) 1)); |
| // Deserialize |
| Ethernet ethernet; |
| ethernet = Ethernet.deserializer().deserialize(packet, 0, packet.length); |
| |
| // Verify |
| assertNotNull(ethernet); |
| assertThat(ethernet.getSourceMAC(), is(ETH_IPV6.getSourceMAC())); |
| assertThat(ethernet.getDestinationMAC(), is(ETH_IPV6.getDestinationMAC())); |
| assertThat(ethernet.getEtherType(), is(Ethernet.MPLS_UNICAST)); |
| assertTrue(ethernet.getPayload() instanceof MPLS); |
| MPLS mpls = (MPLS) ethernet.getPayload(); |
| assertThat(mpls.getLabel(), is(2)); |
| assertThat(mpls.getTtl(), is((byte) 0)); |
| assertThat(mpls.protocol, is(PROTOCOL_MPLS)); |
| assertThat(mpls.bos, is((byte) 0)); |
| assertTrue(mpls.getPayload() instanceof MPLS); |
| mpls = (MPLS) mpls.getPayload(); |
| assertThat(mpls.getLabel(), is(201)); |
| assertThat(mpls.getTtl(), is((byte) 0)); |
| assertThat(mpls.protocol, is(PROTOCOL_IPV6)); |
| assertThat(mpls.bos, is((byte) 1)); |
| IPv6 ip = (IPv6) mpls.getPayload(); |
| assertThat(ip.getSourceAddress(), is(SRC_IPV6.toOctets())); |
| assertThat(ip.getDestinationAddress(), is(DST_IPV6.toOctets())); |
| assertTrue(ip.getPayload() instanceof ICMP6); |
| ICMP6 icmp = (ICMP6) ip.getPayload(); |
| assertThat(icmp.getIcmpType(), is(ECHO_REQUEST)); |
| } |
| } |