| /* |
| * Copyright 2017-present Open Networking Laboratory |
| * |
| * 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 com.google.common.collect.ImmutableList; |
| import org.junit.Test; |
| import org.onlab.packet.dhcp.Dhcp6Option; |
| |
| import static org.junit.Assert.assertArrayEquals; |
| import static org.junit.Assert.assertEquals; |
| |
| import java.nio.ByteBuffer; |
| |
| public class Dhcp6Test { |
| private static final int OPT_CLIENT_ID = 0xBEEFBEEF; |
| private static final byte[] OPT_CLIENT_ID_BYTE_ARR = |
| {(byte) 0xBE, (byte) 0xEF, (byte) 0xBE, (byte) 0xEF}; |
| private static final short OPT_CLIENT_ID_SIZE = 4; |
| private static final int OPT_AUTH = 0xBA11BA11; |
| private static final byte[] OPT_AUTH_BYTE_AR = |
| {(byte) 0xBA, 0x11, (byte) 0xBA, 0x11}; |
| private static final short OPT_AUTH_SIZE = 4; |
| private static final int TRANSACTION_ID = 0xC0FFEE; |
| private static final byte[] TRANSACTION_ID_BYTE_ARR = |
| {(byte) 0xC0, (byte) 0xFF, (byte) 0xEE}; |
| private static final byte HOP_COUNT = 3; |
| private static final Ip6Address LINK_ADDRESS = Ip6Address.valueOf("1111:2222::8888"); |
| private static final Ip6Address PEER_ADDRESS = Ip6Address.valueOf("3333:4444::9999"); |
| Deserializer<DHCP6> deserializer = DHCP6.deserializer(); |
| private byte[] byteHeader; |
| |
| @Test |
| public void testDeserializeBadInput() throws Exception { |
| PacketTestUtils.testDeserializeBadInput(deserializer); |
| } |
| |
| /** |
| * Truncated a simple DHCPv6 payload. |
| */ |
| @Test |
| public void testDeserializeTruncated() throws Exception { |
| ByteBuffer bb = ByteBuffer.allocate(4); |
| bb.put(DHCP6.MsgType.REQUEST.value()); |
| bb.put(TRANSACTION_ID_BYTE_ARR); |
| byteHeader = bb.array(); |
| |
| PacketTestUtils.testDeserializeTruncated(deserializer, byteHeader); |
| } |
| |
| /** |
| * Basic DHCPv6 header with one msg type and one transaction id. |
| */ |
| @Test |
| public void testDeserializeDefaultPayload() throws Exception { |
| ByteBuffer bb = ByteBuffer.allocate(12); |
| bb.put(DHCP6.MsgType.REQUEST.value()); |
| bb.put(TRANSACTION_ID_BYTE_ARR); |
| |
| // put a simple client id (4 bytes) |
| bb.putShort(DHCP6.OptionCode.CLIENTID.value()); |
| bb.putShort(OPT_CLIENT_ID_SIZE); |
| bb.putInt(OPT_CLIENT_ID); |
| byteHeader = bb.array(); |
| |
| DHCP6 dhcp6 = deserializer.deserialize(byteHeader, 0, byteHeader.length); |
| assertEquals(dhcp6.getMsgType(), DHCP6.MsgType.REQUEST.value()); |
| assertEquals(dhcp6.getTransactionId(), TRANSACTION_ID); |
| assertEquals(dhcp6.getOptions().size(), 1); |
| |
| Dhcp6Option clientIdOption = dhcp6.getOptions().get(0); |
| assertEquals(clientIdOption.getCode(), DHCP6.OptionCode.CLIENTID.value()); |
| assertArrayEquals(clientIdOption.getData(), OPT_CLIENT_ID_BYTE_ARR); |
| } |
| |
| /** |
| * DHCPv6 header with relay agent information. |
| */ |
| @Test |
| public void testDeserializeRelayAgent() throws Exception { |
| ByteBuffer bb = ByteBuffer.allocate(42); |
| bb.put(DHCP6.MsgType.RELAY_FORW.value()); |
| bb.put(HOP_COUNT); |
| |
| bb.put(LINK_ADDRESS.toOctets()); |
| bb.put(PEER_ADDRESS.toOctets()); |
| |
| // put a simple client id (4 bytes) |
| bb.putShort(DHCP6.OptionCode.CLIENTID.value()); |
| bb.putShort(OPT_CLIENT_ID_SIZE); |
| bb.putInt(OPT_CLIENT_ID); |
| byteHeader = bb.array(); |
| |
| DHCP6 dhcp6 = deserializer.deserialize(byteHeader, 0, byteHeader.length); |
| assertEquals(dhcp6.getMsgType(), DHCP6.MsgType.RELAY_FORW.value()); |
| assertEquals(dhcp6.getHopCount(), HOP_COUNT); |
| assertArrayEquals(dhcp6.getLinkAddress(), LINK_ADDRESS.toOctets()); |
| assertArrayEquals(dhcp6.getPeerAddress(), PEER_ADDRESS.toOctets()); |
| assertEquals(dhcp6.getOptions().size(), 1); |
| |
| Dhcp6Option clientIdOption = dhcp6.getOptions().get(0); |
| assertEquals(clientIdOption.getCode(), DHCP6.OptionCode.CLIENTID.value()); |
| assertArrayEquals(clientIdOption.getData(), OPT_CLIENT_ID_BYTE_ARR); |
| } |
| |
| /** |
| * Serialize DHCPv6 header with default payload and options. |
| */ |
| @Test |
| public void testSerializeDefaultPayload() throws Exception { |
| DHCP6 dhcp6 = new DHCP6(); |
| dhcp6.setMsgType(DHCP6.MsgType.REQUEST.value()); |
| dhcp6.setTransactionId(TRANSACTION_ID); |
| |
| Dhcp6Option opt1 = new Dhcp6Option(); |
| opt1.setCode(DHCP6.OptionCode.CLIENTID.value()); |
| opt1.setLength(OPT_CLIENT_ID_SIZE); |
| opt1.setData(OPT_CLIENT_ID_BYTE_ARR); |
| |
| |
| Dhcp6Option opt2 = new Dhcp6Option(); |
| opt2.setCode(DHCP6.OptionCode.AUTH.value()); |
| opt2.setLength(OPT_AUTH_SIZE); |
| opt2.setData(OPT_AUTH_BYTE_AR); |
| |
| dhcp6.setOptions(ImmutableList.of(opt1, opt2)); |
| |
| byte[] serialized = dhcp6.serialize(); |
| ByteBuffer expected = ByteBuffer.allocate(20) |
| .put(DHCP6.MsgType.REQUEST.value()) |
| .put(TRANSACTION_ID_BYTE_ARR) |
| .putShort(DHCP6.OptionCode.CLIENTID.value()) |
| .putShort(OPT_CLIENT_ID_SIZE) |
| .putInt(OPT_CLIENT_ID) |
| .putShort(DHCP6.OptionCode.AUTH.value()) |
| .putShort(OPT_AUTH_SIZE) |
| .putInt(OPT_AUTH); |
| |
| assertArrayEquals(serialized, expected.array()); |
| } |
| |
| /** |
| * Serialize DHCPv6 header with relay agent payload and options. |
| */ |
| @Test |
| public void testSerializeRelayAgent() throws Exception { |
| DHCP6 dhcp6 = new DHCP6(); |
| dhcp6.setMsgType(DHCP6.MsgType.RELAY_FORW.value()); |
| dhcp6.setHopCount(HOP_COUNT); |
| dhcp6.setLinkAddress(LINK_ADDRESS.toOctets()); |
| dhcp6.setPeerAddress(PEER_ADDRESS.toOctets()); |
| |
| Dhcp6Option opt1 = new Dhcp6Option(); |
| opt1.setCode(DHCP6.OptionCode.CLIENTID.value()); |
| opt1.setLength(OPT_CLIENT_ID_SIZE); |
| opt1.setData(OPT_CLIENT_ID_BYTE_ARR); |
| |
| |
| Dhcp6Option opt2 = new Dhcp6Option(); |
| opt2.setCode(DHCP6.OptionCode.AUTH.value()); |
| opt2.setLength(OPT_AUTH_SIZE); |
| opt2.setData(OPT_AUTH_BYTE_AR); |
| |
| dhcp6.setOptions(ImmutableList.of(opt1, opt2)); |
| |
| byte[] serialized = dhcp6.serialize(); |
| ByteBuffer expected = ByteBuffer.allocate(50) |
| .put(DHCP6.MsgType.RELAY_FORW.value()) |
| .put(HOP_COUNT) |
| .put(LINK_ADDRESS.toOctets()) |
| .put(PEER_ADDRESS.toOctets()) |
| .putShort(DHCP6.OptionCode.CLIENTID.value()) |
| .putShort(OPT_CLIENT_ID_SIZE) |
| .putInt(OPT_CLIENT_ID) |
| .putShort(DHCP6.OptionCode.AUTH.value()) |
| .putShort(OPT_AUTH_SIZE) |
| .putInt(OPT_AUTH); |
| |
| assertArrayEquals(serialized, expected.array()); |
| } |
| } |