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/*
* Copyright 2017-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.dhcp;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Lists;
import com.google.common.io.Resources;
import org.junit.Test;
import org.onlab.packet.DHCP6;
import org.onlab.packet.Ethernet;
import org.onlab.packet.IPv6;
import org.onlab.packet.Ip6Address;
import org.onlab.packet.MacAddress;
import org.onlab.packet.UDP;
import java.util.List;
import static java.nio.charset.StandardCharsets.US_ASCII;
import static org.junit.Assert.*;
/**
* Test serializing/deserializing DHCPv6 relay message.
*/
public class Dhcp6RelayTest {
private static final String SOLICIT = "dhcp6_relay_solicit.bin";
private static final String ADVERTISE = "dhcp6_relay_advertise.bin";
private static final String REQUEST = "dhcp6_relay_request.bin";
private static final String REPLY = "dhcp6_relay_reply.bin";
private static final int HOP_COUNT = 0;
private static final Ip6Address LINK_ADDRESS = Ip6Address.valueOf("2000::2ff");
private static final Ip6Address PEER_ADDRESS = Ip6Address.valueOf("fe80::2bb:ff:fe00:1");
private static final int XID_1 = 8135067;
private static final int XID_2 = 14742082;
private static final int IA_ID = 1;
private static final int T1_CLIENT = 3600;
private static final int T2_CLIENT = 5400;
private static final int T1_SERVER = 0;
private static final int T2_SERVER = 0;
private static final Ip6Address IA_ADDRESS = Ip6Address.valueOf("2000::201");
private static final int PREFFERRED_LT_SERVER = 375;
private static final int VALID_LT_SERVER = 600;
private static final int PREFFERRED_LT_REQ = 7200;
private static final int VALID_LT_REQ = 10800;
private static final int VALID_LT_REQ_2 = 7500;
private static final MacAddress DOWNSTREAM_MAC = MacAddress.valueOf("4a:c0:c2:78:92:34");
private static final MacAddress CLIENT_MAC = MacAddress.valueOf("00:bb:00:00:00:01");
private static final int CLIENT_DUID_TIME = 555636143;
private static final MacAddress IPV6_MCAST = MacAddress.valueOf("33:33:00:01:00:03");
private static final Ip6Address DOWNSTREAM_LL = Ip6Address.valueOf("fe80::48c0:c2ff:fe78:9234");
private static final Ip6Address DHCP6_BRC = Ip6Address.valueOf("ff05::1:3");
private static final Ip6Address SERVER_IP = Ip6Address.valueOf("2000::9903");
private static final MacAddress SERVER_MAC = MacAddress.valueOf("00:99:66:00:00:01");
private static final Ip6Address SERVER_LL = Ip6Address.valueOf("fe80::299:66ff:fe00:1");
/**
* Test deserialize relay message with solicit message.
*
* @throws Exception exception while deserialize the DHCPv6 payload
*/
@Test
public void deserializeSolicit() throws Exception {
byte[] data = Resources.toByteArray(Dhcp6RelayTest.class.getResource(SOLICIT));
Ethernet eth = Ethernet.deserializer().deserialize(data, 0, data.length);
DHCP6 relayMsg = (DHCP6) eth.getPayload().getPayload().getPayload();
assertEquals(relayMsg.getMsgType(), DHCP6.MsgType.RELAY_FORW.value());
assertEquals(relayMsg.getHopCount(), HOP_COUNT);
assertEquals(relayMsg.getIp6LinkAddress(), LINK_ADDRESS);
assertEquals(relayMsg.getIp6PeerAddress(), PEER_ADDRESS);
assertEquals(relayMsg.getOptions().size(), 2);
Dhcp6Option option = relayMsg.getOptions().get(0);
assertEquals(option.getCode(), DHCP6.OptionCode.SUBSCRIBER_ID.value());
assertEquals(option.getLength(), 10);
assertArrayEquals(option.getData(), SERVER_IP.toString().getBytes(US_ASCII));
option = relayMsg.getOptions().get(1);
assertEquals(option.getCode(), DHCP6.OptionCode.RELAY_MSG.value());
assertEquals(option.getLength(), 84);
assertTrue(option.getPayload() instanceof DHCP6);
DHCP6 relaiedDhcp6 = (DHCP6) option.getPayload();
assertEquals(relaiedDhcp6.getMsgType(), DHCP6.MsgType.SOLICIT.value());
assertEquals(relaiedDhcp6.getTransactionId(), XID_1);
assertEquals(relaiedDhcp6.getOptions().size(), 4);
// Client ID
option = relaiedDhcp6.getOptions().get(0);
assertTrue(option instanceof Dhcp6ClientIdOption);
Dhcp6ClientIdOption clientIdOption = (Dhcp6ClientIdOption) option;
assertEquals(clientIdOption.getCode(), DHCP6.OptionCode.CLIENTID.value());
assertEquals(clientIdOption.getLength(), 14);
assertEquals(clientIdOption.getDuid().getDuidType(), Dhcp6Duid.DuidType.DUID_LLT);
assertEquals(clientIdOption.getDuid().getHardwareType(), 1);
assertEquals(clientIdOption.getDuid().getDuidTime(), CLIENT_DUID_TIME);
assertArrayEquals(clientIdOption.getDuid().getLinkLayerAddress(), CLIENT_MAC.toBytes());
// ORO
option = relaiedDhcp6.getOptions().get(1);
assertEquals(option.getCode(), DHCP6.OptionCode.ORO.value());
assertEquals(option.getLength(), 8);
assertArrayEquals(option.getData(),
new byte[]{0, 23, 0, 24, 0, 39, 0, 31});
// ELAPSED_TIME
option = relaiedDhcp6.getOptions().get(2);
assertEquals(option.getCode(), DHCP6.OptionCode.ELAPSED_TIME.value());
assertEquals(option.getLength(), 2);
assertArrayEquals(option.getData(),
new byte[]{0, 0});
// IA NA
option = relaiedDhcp6.getOptions().get(3);
assertTrue(option instanceof Dhcp6IaNaOption);
Dhcp6IaNaOption iaNaOption = (Dhcp6IaNaOption) option;
assertEquals(iaNaOption.getCode(), DHCP6.OptionCode.IA_NA.value());
assertEquals(iaNaOption.getLength(), 40);
assertEquals(iaNaOption.getIaId(), IA_ID);
assertEquals(iaNaOption.getT1(), T1_CLIENT);
assertEquals(iaNaOption.getT2(), T2_CLIENT);
assertEquals(iaNaOption.getOptions().size(), 1);
Dhcp6IaAddressOption subOption = (Dhcp6IaAddressOption) iaNaOption.getOptions().get(0);
assertEquals(subOption.getIp6Address(), IA_ADDRESS);
assertEquals(subOption.getPreferredLifetime(), PREFFERRED_LT_REQ);
assertEquals(subOption.getValidLifetime(), VALID_LT_REQ);
assertArrayEquals(data, eth.serialize());
}
/**
* Test serialize relay message with solicit message.
*
* @throws Exception exception while serialize the DHCPv6 payload
*/
@Test
public void serializeSolicit() throws Exception {
DHCP6 relayMsg = new DHCP6();
relayMsg.setMsgType(DHCP6.MsgType.RELAY_FORW.value());
relayMsg.setHopCount((byte) HOP_COUNT);
relayMsg.setLinkAddress(LINK_ADDRESS.toOctets());
relayMsg.setPeerAddress(PEER_ADDRESS.toOctets());
DHCP6 relaiedDhcp6 = new DHCP6();
relaiedDhcp6.setMsgType(DHCP6.MsgType.SOLICIT.value());
relaiedDhcp6.setTransactionId(XID_1);
List<Dhcp6Option> options = Lists.newArrayList();
// Client ID
Dhcp6Duid duid = new Dhcp6Duid();
duid.setDuidType(Dhcp6Duid.DuidType.DUID_LLT);
duid.setHardwareType((short) 1);
duid.setDuidTime(CLIENT_DUID_TIME);
duid.setLinkLayerAddress(CLIENT_MAC.toBytes());
Dhcp6ClientIdOption clientIdOption = new Dhcp6ClientIdOption();
clientIdOption.setDuid(duid);
options.add(clientIdOption);
// Option request
Dhcp6Option option = new Dhcp6Option();
option.setCode(DHCP6.OptionCode.ORO.value());
option.setLength((short) 8);
option.setData(new byte[]{0, 23, 0, 24, 0, 39, 0, 31});
options.add(option);
// Elapsed Time
option = new Dhcp6Option();
option.setCode(DHCP6.OptionCode.ELAPSED_TIME.value());
option.setLength((short) 2);
option.setData(new byte[]{0, 0});
options.add(option);
// IA NA
Dhcp6IaNaOption iaNaOption = new Dhcp6IaNaOption();
iaNaOption.setIaId(IA_ID);
iaNaOption.setT1(T1_CLIENT);
iaNaOption.setT2(T2_CLIENT);
Dhcp6IaAddressOption iaAddressOption = new Dhcp6IaAddressOption();
iaAddressOption.setIp6Address(IA_ADDRESS);
iaAddressOption.setPreferredLifetime(PREFFERRED_LT_REQ);
iaAddressOption.setValidLifetime(VALID_LT_REQ);
iaNaOption.setOptions(ImmutableList.of(iaAddressOption));
options.add(iaNaOption);
relaiedDhcp6.setOptions(options);
Dhcp6RelayOption relayOption = new Dhcp6RelayOption();
relayOption.setPayload(relaiedDhcp6);
Dhcp6Option subscriberId = new Dhcp6Option();
subscriberId.setCode(DHCP6.OptionCode.SUBSCRIBER_ID.value());
subscriberId.setLength((short) 10);
subscriberId.setData(SERVER_IP.toString().getBytes(US_ASCII));
relayMsg.setOptions(ImmutableList.of(subscriberId, relayOption));
UDP udp = new UDP();
udp.setSourcePort(UDP.DHCP_V6_SERVER_PORT);
udp.setDestinationPort(UDP.DHCP_V6_SERVER_PORT);
udp.setPayload(relayMsg);
udp.setChecksum((short) 0x9a99);
IPv6 ipv6 = new IPv6();
ipv6.setHopLimit((byte) 32);
ipv6.setSourceAddress(DOWNSTREAM_LL.toOctets());
ipv6.setDestinationAddress(DHCP6_BRC.toOctets());
ipv6.setNextHeader(IPv6.PROTOCOL_UDP);
ipv6.setTrafficClass((byte) 0);
ipv6.setFlowLabel(0x000cbf64);
ipv6.setPayload(udp);
Ethernet eth = new Ethernet();
eth.setDestinationMACAddress(IPV6_MCAST);
eth.setSourceMACAddress(DOWNSTREAM_MAC);
eth.setEtherType(Ethernet.TYPE_IPV6);
eth.setPayload(ipv6);
assertArrayEquals(Resources.toByteArray(Dhcp6RelayTest.class.getResource(SOLICIT)),
eth.serialize());
}
/**
* Test deserialize relay message with advertise message.
*
* @throws Exception exception while deserialize the DHCPv6 payload
*/
@Test
public void deserializeAdvertise() throws Exception {
byte[] data = Resources.toByteArray(getClass().getResource(ADVERTISE));
Ethernet eth = Ethernet.deserializer().deserialize(data, 0, data.length);
DHCP6 relayMsg = (DHCP6) eth.getPayload().getPayload().getPayload();
assertEquals(relayMsg.getMsgType(), DHCP6.MsgType.RELAY_REPL.value());
assertEquals(relayMsg.getHopCount(), HOP_COUNT);
assertEquals(relayMsg.getIp6LinkAddress(), LINK_ADDRESS);
assertEquals(relayMsg.getIp6PeerAddress(), PEER_ADDRESS);
assertEquals(relayMsg.getOptions().size(), 1);
Dhcp6Option option = relayMsg.getOptions().get(0);
assertEquals(option.getCode(), DHCP6.OptionCode.RELAY_MSG.value());
assertEquals(option.getLength(), 84);
assertTrue(option.getPayload() instanceof DHCP6);
DHCP6 relaiedDhcp6 = (DHCP6) option.getPayload();
assertEquals(relaiedDhcp6.getMsgType(), DHCP6.MsgType.ADVERTISE.value());
assertEquals(relaiedDhcp6.getTransactionId(), XID_1);
assertEquals(relaiedDhcp6.getOptions().size(), 3);
// IA NA
option = relaiedDhcp6.getOptions().get(0);
assertTrue(option instanceof Dhcp6IaNaOption);
Dhcp6IaNaOption iaNaOption = (Dhcp6IaNaOption) option;
assertEquals(iaNaOption.getCode(), DHCP6.OptionCode.IA_NA.value());
assertEquals(iaNaOption.getLength(), 40);
assertEquals(iaNaOption.getIaId(), IA_ID);
assertEquals(iaNaOption.getT1(), T1_SERVER);
assertEquals(iaNaOption.getT2(), T2_SERVER);
assertEquals(iaNaOption.getOptions().size(), 1);
// IA Address (in IA NA)
assertTrue(iaNaOption.getOptions().get(0) instanceof Dhcp6IaAddressOption);
Dhcp6IaAddressOption iaAddressOption =
(Dhcp6IaAddressOption) iaNaOption.getOptions().get(0);
assertEquals(iaAddressOption.getIp6Address(), IA_ADDRESS);
assertEquals(iaAddressOption.getPreferredLifetime(), PREFFERRED_LT_SERVER);
assertEquals(iaAddressOption.getValidLifetime(), VALID_LT_SERVER);
assertNull(iaAddressOption.getOptions());
// Client ID
option = relaiedDhcp6.getOptions().get(1);
assertTrue(option instanceof Dhcp6ClientIdOption);
Dhcp6ClientIdOption clientIdOption = (Dhcp6ClientIdOption) option;
assertEquals(clientIdOption.getCode(), DHCP6.OptionCode.CLIENTID.value());
assertEquals(clientIdOption.getLength(), 14);
assertEquals(clientIdOption.getDuid().getDuidType(), Dhcp6Duid.DuidType.DUID_LLT);
assertEquals(clientIdOption.getDuid().getHardwareType(), 1);
assertEquals(clientIdOption.getDuid().getDuidTime(), CLIENT_DUID_TIME);
assertArrayEquals(clientIdOption.getDuid().getLinkLayerAddress(), CLIENT_MAC.toBytes());
// Server ID
option = relaiedDhcp6.getOptions().get(2);
assertEquals(option.getCode(), DHCP6.OptionCode.SERVERID.value());
assertEquals(option.getLength(), 14);
Dhcp6Duid serverDuid =
Dhcp6Duid.deserializer().deserialize(option.getData(), 0, option.getData().length);
assertEquals(serverDuid.getDuidType(), Dhcp6Duid.DuidType.DUID_LLT);
assertEquals(serverDuid.getDuidTime(), 0x211e5340);
assertEquals(serverDuid.getHardwareType(), 1);
assertArrayEquals(serverDuid.getLinkLayerAddress(), SERVER_MAC.toBytes());
assertArrayEquals(data, eth.serialize());
}
/**
* Test serialize relay message with advertise message.
*
* @throws Exception exception while serialize the DHCPv6 payload
*/
@Test
public void serializeAdvertise() throws Exception {
DHCP6 relayMsg = new DHCP6();
relayMsg.setMsgType(DHCP6.MsgType.RELAY_REPL.value());
relayMsg.setHopCount((byte) HOP_COUNT);
relayMsg.setLinkAddress(LINK_ADDRESS.toOctets());
relayMsg.setPeerAddress(PEER_ADDRESS.toOctets());
DHCP6 relaiedDhcp6 = new DHCP6();
relaiedDhcp6.setMsgType(DHCP6.MsgType.ADVERTISE.value());
relaiedDhcp6.setTransactionId(XID_1);
List<Dhcp6Option> options = Lists.newArrayList();
// IA address
Dhcp6IaAddressOption iaAddressOption = new Dhcp6IaAddressOption();
iaAddressOption.setIp6Address(IA_ADDRESS);
iaAddressOption.setPreferredLifetime(PREFFERRED_LT_SERVER);
iaAddressOption.setValidLifetime(VALID_LT_SERVER);
// IA NA
Dhcp6IaNaOption iaNaOption = new Dhcp6IaNaOption();
iaNaOption.setIaId(IA_ID);
iaNaOption.setT1(T1_SERVER);
iaNaOption.setT2(T2_SERVER);
iaNaOption.setOptions(ImmutableList.of(iaAddressOption));
options.add(iaNaOption);
// Client ID
Dhcp6Duid duid = new Dhcp6Duid();
duid.setDuidType(Dhcp6Duid.DuidType.DUID_LLT);
duid.setHardwareType((short) 1);
duid.setDuidTime(CLIENT_DUID_TIME);
duid.setLinkLayerAddress(CLIENT_MAC.toBytes());
Dhcp6ClientIdOption clientIdOption = new Dhcp6ClientIdOption();
clientIdOption.setDuid(duid);
options.add(clientIdOption);
// Server ID
Dhcp6Option option = new Dhcp6Option();
option.setCode(DHCP6.OptionCode.SERVERID.value());
option.setLength((short) 14);
Dhcp6Duid serverDuid = new Dhcp6Duid();
serverDuid.setDuidType(Dhcp6Duid.DuidType.DUID_LLT);
serverDuid.setLinkLayerAddress(SERVER_MAC.toBytes());
serverDuid.setHardwareType((short) 1);
serverDuid.setDuidTime(0x211e5340);
option.setData(serverDuid.serialize());
options.add(option);
relaiedDhcp6.setOptions(options);
Dhcp6RelayOption relayOption = new Dhcp6RelayOption();
relayOption.setPayload(relaiedDhcp6);
relayMsg.setOptions(ImmutableList.of(relayOption));
UDP udp = new UDP();
udp.setSourcePort(UDP.DHCP_V6_SERVER_PORT);
udp.setDestinationPort(UDP.DHCP_V6_SERVER_PORT);
udp.setPayload(relayMsg);
udp.setChecksum((short) 0x0000019d);
IPv6 ipv6 = new IPv6();
ipv6.setHopLimit((byte) 64);
ipv6.setSourceAddress(SERVER_LL.toOctets());
ipv6.setDestinationAddress(DOWNSTREAM_LL.toOctets());
ipv6.setNextHeader(IPv6.PROTOCOL_UDP);
ipv6.setTrafficClass((byte) 0);
ipv6.setFlowLabel(0x000c72ef);
ipv6.setPayload(udp);
Ethernet eth = new Ethernet();
eth.setDestinationMACAddress(DOWNSTREAM_MAC);
eth.setSourceMACAddress(SERVER_MAC);
eth.setEtherType(Ethernet.TYPE_IPV6);
eth.setPayload(ipv6);
assertArrayEquals(Resources.toByteArray(Dhcp6RelayTest.class.getResource(ADVERTISE)),
eth.serialize());
}
/**
* Test deserialize relay message with request message.
*
* @throws Exception exception while deserialize the DHCPv6 payload
*/
@Test
public void deserializeRequest() throws Exception {
byte[] data = Resources.toByteArray(getClass().getResource(REQUEST));
Ethernet eth = Ethernet.deserializer().deserialize(data, 0, data.length);
DHCP6 relayMsg = (DHCP6) eth.getPayload().getPayload().getPayload();
assertEquals(relayMsg.getMsgType(), DHCP6.MsgType.RELAY_FORW.value());
assertEquals(relayMsg.getHopCount(), HOP_COUNT);
assertEquals(relayMsg.getIp6LinkAddress(), LINK_ADDRESS);
assertEquals(relayMsg.getIp6PeerAddress(), PEER_ADDRESS);
assertEquals(relayMsg.getOptions().size(), 2);
Dhcp6Option option = relayMsg.getOptions().get(0);
assertEquals(option.getCode(), DHCP6.OptionCode.SUBSCRIBER_ID.value());
assertEquals(option.getLength(), 10);
assertArrayEquals(option.getData(), SERVER_IP.toString().getBytes(US_ASCII));
option = relayMsg.getOptions().get(1);
assertEquals(option.getCode(), DHCP6.OptionCode.RELAY_MSG.value());
assertEquals(option.getLength(), 102);
assertTrue(option.getPayload() instanceof DHCP6);
DHCP6 relaiedDhcp6 = (DHCP6) option.getPayload();
assertEquals(relaiedDhcp6.getMsgType(), DHCP6.MsgType.REQUEST.value());
assertEquals(relaiedDhcp6.getTransactionId(), XID_2);
assertEquals(relaiedDhcp6.getOptions().size(), 5);
// Client ID
option = relaiedDhcp6.getOptions().get(0);
assertTrue(option instanceof Dhcp6ClientIdOption);
Dhcp6ClientIdOption clientIdOption = (Dhcp6ClientIdOption) option;
assertEquals(clientIdOption.getCode(), DHCP6.OptionCode.CLIENTID.value());
assertEquals(clientIdOption.getLength(), 14);
assertEquals(clientIdOption.getDuid().getDuidType(), Dhcp6Duid.DuidType.DUID_LLT);
assertEquals(clientIdOption.getDuid().getHardwareType(), 1);
assertEquals(clientIdOption.getDuid().getDuidTime(), CLIENT_DUID_TIME);
assertArrayEquals(clientIdOption.getDuid().getLinkLayerAddress(), CLIENT_MAC.toBytes());
// Server ID
option = relaiedDhcp6.getOptions().get(1);
assertEquals(option.getCode(), DHCP6.OptionCode.SERVERID.value());
assertEquals(option.getLength(), 14);
Dhcp6Duid serverDuid =
Dhcp6Duid.deserializer().deserialize(option.getData(), 0, option.getData().length);
assertEquals(serverDuid.getDuidType(), Dhcp6Duid.DuidType.DUID_LLT);
assertEquals(serverDuid.getDuidTime(), 0x211e5340);
assertEquals(serverDuid.getHardwareType(), 1);
assertArrayEquals(serverDuid.getLinkLayerAddress(), SERVER_MAC.toBytes());
// Option Request
option = relaiedDhcp6.getOptions().get(2);
assertEquals(option.getCode(), DHCP6.OptionCode.ORO.value());
assertEquals(option.getLength(), 8);
assertArrayEquals(option.getData(), new byte[]{0, 23, 0, 24, 0, 39, 0, 31});
// ELAPSED_TIME
option = relaiedDhcp6.getOptions().get(3);
assertEquals(option.getCode(), DHCP6.OptionCode.ELAPSED_TIME.value());
assertEquals(option.getLength(), 2);
assertArrayEquals(option.getData(), new byte[]{0, 0});
// IA NA
option = relaiedDhcp6.getOptions().get(4);
assertTrue(option instanceof Dhcp6IaNaOption);
Dhcp6IaNaOption iaNaOption = (Dhcp6IaNaOption) option;
assertEquals(iaNaOption.getCode(), DHCP6.OptionCode.IA_NA.value());
assertEquals(iaNaOption.getLength(), 40);
assertEquals(iaNaOption.getIaId(), IA_ID);
assertEquals(iaNaOption.getT1(), T1_CLIENT);
assertEquals(iaNaOption.getT2(), T2_CLIENT);
assertEquals(iaNaOption.getOptions().size(), 1);
// IA Address (in IA NA)
assertTrue(iaNaOption.getOptions().get(0) instanceof Dhcp6IaAddressOption);
Dhcp6IaAddressOption iaAddressOption =
(Dhcp6IaAddressOption) iaNaOption.getOptions().get(0);
assertEquals(iaAddressOption.getIp6Address(), IA_ADDRESS);
assertEquals(iaAddressOption.getPreferredLifetime(), PREFFERRED_LT_REQ);
assertEquals(iaAddressOption.getValidLifetime(), VALID_LT_REQ_2);
assertNull(iaAddressOption.getOptions());
assertArrayEquals(data, eth.serialize());
}
/**
* Test serialize relay message with request message.
*
* @throws Exception exception while serialize the DHCPv6 payload
*/
@Test
public void serializeRequest() throws Exception {
DHCP6 relayMsg = new DHCP6();
relayMsg.setMsgType(DHCP6.MsgType.RELAY_FORW.value());
relayMsg.setHopCount((byte) HOP_COUNT);
relayMsg.setLinkAddress(LINK_ADDRESS.toOctets());
relayMsg.setPeerAddress(PEER_ADDRESS.toOctets());
DHCP6 relaiedDhcp6 = new DHCP6();
relaiedDhcp6.setMsgType(DHCP6.MsgType.REQUEST.value());
relaiedDhcp6.setTransactionId(XID_2);
List<Dhcp6Option> options = Lists.newArrayList();
// Client ID
Dhcp6Duid duid = new Dhcp6Duid();
duid.setDuidType(Dhcp6Duid.DuidType.DUID_LLT);
duid.setHardwareType((short) 1);
duid.setDuidTime(CLIENT_DUID_TIME);
duid.setLinkLayerAddress(CLIENT_MAC.toBytes());
Dhcp6ClientIdOption clientIdOption = new Dhcp6ClientIdOption();
clientIdOption.setDuid(duid);
options.add(clientIdOption);
// Server ID
Dhcp6Option option = new Dhcp6Option();
option.setCode(DHCP6.OptionCode.SERVERID.value());
option.setLength((short) 14);
Dhcp6Duid serverDuid = new Dhcp6Duid();
serverDuid.setDuidType(Dhcp6Duid.DuidType.DUID_LLT);
serverDuid.setLinkLayerAddress(SERVER_MAC.toBytes());
serverDuid.setHardwareType((short) 1);
serverDuid.setDuidTime(0x211e5340);
option.setData(serverDuid.serialize());
options.add(option);
// Option request
option = new Dhcp6Option();
option.setCode(DHCP6.OptionCode.ORO.value());
option.setLength((short) 8);
option.setData(new byte[]{0, 23, 0, 24, 0, 39, 0, 31});
options.add(option);
// Elapsed Time
option = new Dhcp6Option();
option.setCode(DHCP6.OptionCode.ELAPSED_TIME.value());
option.setLength((short) 2);
option.setData(new byte[]{0, 0});
options.add(option);
// IA address
Dhcp6IaAddressOption iaAddressOption = new Dhcp6IaAddressOption();
iaAddressOption.setIp6Address(IA_ADDRESS);
iaAddressOption.setPreferredLifetime(PREFFERRED_LT_REQ);
iaAddressOption.setValidLifetime(VALID_LT_REQ_2);
// IA NA
Dhcp6IaNaOption iaNaOption = new Dhcp6IaNaOption();
iaNaOption.setIaId(IA_ID);
iaNaOption.setT1(T1_CLIENT);
iaNaOption.setT2(T2_CLIENT);
iaNaOption.setOptions(ImmutableList.of(iaAddressOption));
options.add(iaNaOption);
relaiedDhcp6.setOptions(options);
Dhcp6Option subscriberId = new Dhcp6Option();
subscriberId.setCode(DHCP6.OptionCode.SUBSCRIBER_ID.value());
subscriberId.setLength((short) 10);
subscriberId.setData(SERVER_IP.toString().getBytes(US_ASCII));
Dhcp6RelayOption relayOption = new Dhcp6RelayOption();
relayOption.setPayload(relaiedDhcp6);
relayMsg.setOptions(ImmutableList.of(subscriberId, relayOption));
UDP udp = new UDP();
udp.setSourcePort(UDP.DHCP_V6_SERVER_PORT);
udp.setDestinationPort(UDP.DHCP_V6_SERVER_PORT);
udp.setPayload(relayMsg);
udp.setChecksum((short) 0x9aab);
IPv6 ipv6 = new IPv6();
ipv6.setHopLimit((byte) 32);
ipv6.setSourceAddress(DOWNSTREAM_LL.toOctets());
ipv6.setDestinationAddress(DHCP6_BRC.toOctets());
ipv6.setNextHeader(IPv6.PROTOCOL_UDP);
ipv6.setTrafficClass((byte) 0);
ipv6.setFlowLabel(0x000cbf64);
ipv6.setPayload(udp);
Ethernet eth = new Ethernet();
eth.setDestinationMACAddress(IPV6_MCAST);
eth.setSourceMACAddress(DOWNSTREAM_MAC);
eth.setEtherType(Ethernet.TYPE_IPV6);
eth.setPayload(ipv6);
assertArrayEquals(Resources.toByteArray(Dhcp6RelayTest.class.getResource(REQUEST)),
eth.serialize());
}
/**
* Test deserialize relay message with reply message.
*
* @throws Exception exception while deserialize the DHCPv6 payload
*/
@Test
public void deserializeReply() throws Exception {
byte[] data = Resources.toByteArray(getClass().getResource(REPLY));
Ethernet eth = Ethernet.deserializer().deserialize(data, 0, data.length);
DHCP6 relayMsg = (DHCP6) eth.getPayload().getPayload().getPayload();
assertEquals(relayMsg.getMsgType(), DHCP6.MsgType.RELAY_REPL.value());
assertEquals(relayMsg.getHopCount(), HOP_COUNT);
assertEquals(relayMsg.getIp6LinkAddress(), LINK_ADDRESS);
assertEquals(relayMsg.getIp6PeerAddress(), PEER_ADDRESS);
assertEquals(relayMsg.getOptions().size(), 1);
Dhcp6Option option = relayMsg.getOptions().get(0);
assertEquals(option.getCode(), DHCP6.OptionCode.RELAY_MSG.value());
assertEquals(option.getLength(), 84);
assertTrue(option.getPayload() instanceof DHCP6);
DHCP6 relaiedDhcp6 = (DHCP6) option.getPayload();
assertEquals(relaiedDhcp6.getMsgType(), DHCP6.MsgType.REPLY.value());
assertEquals(relaiedDhcp6.getTransactionId(), XID_2);
assertEquals(relaiedDhcp6.getOptions().size(), 3);
// IA NA
option = relaiedDhcp6.getOptions().get(0);
assertTrue(option instanceof Dhcp6IaNaOption);
Dhcp6IaNaOption iaNaOption = (Dhcp6IaNaOption) option;
assertEquals(iaNaOption.getCode(), DHCP6.OptionCode.IA_NA.value());
assertEquals(iaNaOption.getLength(), 40);
assertEquals(iaNaOption.getIaId(), IA_ID);
assertEquals(iaNaOption.getT1(), T1_SERVER);
assertEquals(iaNaOption.getT2(), T2_SERVER);
assertEquals(iaNaOption.getOptions().size(), 1);
// IA Address (in IA NA)
assertTrue(iaNaOption.getOptions().get(0) instanceof Dhcp6IaAddressOption);
Dhcp6IaAddressOption iaAddressOption =
(Dhcp6IaAddressOption) iaNaOption.getOptions().get(0);
assertEquals(iaAddressOption.getIp6Address(), IA_ADDRESS);
assertEquals(iaAddressOption.getPreferredLifetime(), PREFFERRED_LT_SERVER);
assertEquals(iaAddressOption.getValidLifetime(), VALID_LT_SERVER);
assertNull(iaAddressOption.getOptions());
// Client ID
option = relaiedDhcp6.getOptions().get(1);
assertTrue(option instanceof Dhcp6ClientIdOption);
Dhcp6ClientIdOption clientIdOption = (Dhcp6ClientIdOption) option;
assertEquals(clientIdOption.getCode(), DHCP6.OptionCode.CLIENTID.value());
assertEquals(clientIdOption.getLength(), 14);
assertEquals(clientIdOption.getDuid().getDuidType(), Dhcp6Duid.DuidType.DUID_LLT);
assertEquals(clientIdOption.getDuid().getHardwareType(), 1);
assertEquals(clientIdOption.getDuid().getDuidTime(), CLIENT_DUID_TIME);
assertArrayEquals(clientIdOption.getDuid().getLinkLayerAddress(), CLIENT_MAC.toBytes());
// Server ID
option = relaiedDhcp6.getOptions().get(2);
assertEquals(option.getCode(), DHCP6.OptionCode.SERVERID.value());
assertEquals(option.getLength(), 14);
Dhcp6Duid serverDuid =
Dhcp6Duid.deserializer().deserialize(option.getData(), 0, option.getData().length);
assertEquals(serverDuid.getDuidType(), Dhcp6Duid.DuidType.DUID_LLT);
assertEquals(serverDuid.getDuidTime(), 0x211e5340);
assertEquals(serverDuid.getHardwareType(), 1);
assertArrayEquals(serverDuid.getLinkLayerAddress(), SERVER_MAC.toBytes());
assertArrayEquals(data, eth.serialize());
}
@Test
public void serializeReply() throws Exception {
DHCP6 relayMsg = new DHCP6();
relayMsg.setMsgType(DHCP6.MsgType.RELAY_REPL.value());
relayMsg.setHopCount((byte) HOP_COUNT);
relayMsg.setLinkAddress(LINK_ADDRESS.toOctets());
relayMsg.setPeerAddress(PEER_ADDRESS.toOctets());
DHCP6 relaiedDhcp6 = new DHCP6();
relaiedDhcp6.setMsgType(DHCP6.MsgType.REPLY.value());
relaiedDhcp6.setTransactionId(XID_2);
List<Dhcp6Option> options = Lists.newArrayList();
// IA address
Dhcp6IaAddressOption iaAddressOption = new Dhcp6IaAddressOption();
iaAddressOption.setIp6Address(IA_ADDRESS);
iaAddressOption.setPreferredLifetime(PREFFERRED_LT_SERVER);
iaAddressOption.setValidLifetime(VALID_LT_SERVER);
// IA NA
Dhcp6IaNaOption iaNaOption = new Dhcp6IaNaOption();
iaNaOption.setIaId(IA_ID);
iaNaOption.setT1(T1_SERVER);
iaNaOption.setT2(T2_SERVER);
iaNaOption.setOptions(ImmutableList.of(iaAddressOption));
options.add(iaNaOption);
// Client ID
Dhcp6Duid duid = new Dhcp6Duid();
duid.setDuidType(Dhcp6Duid.DuidType.DUID_LLT);
duid.setHardwareType((short) 1);
duid.setDuidTime(CLIENT_DUID_TIME);
duid.setLinkLayerAddress(CLIENT_MAC.toBytes());
Dhcp6ClientIdOption clientIdOption = new Dhcp6ClientIdOption();
clientIdOption.setDuid(duid);
options.add(clientIdOption);
// Server ID
Dhcp6Option option = new Dhcp6Option();
option.setCode(DHCP6.OptionCode.SERVERID.value());
option.setLength((short) 14);
Dhcp6Duid serverDuid = new Dhcp6Duid();
serverDuid.setDuidType(Dhcp6Duid.DuidType.DUID_LLT);
serverDuid.setLinkLayerAddress(SERVER_MAC.toBytes());
serverDuid.setHardwareType((short) 1);
serverDuid.setDuidTime(0x211e5340);
option.setData(serverDuid.serialize());
options.add(option);
relaiedDhcp6.setOptions(options);
Dhcp6RelayOption relayOption = new Dhcp6RelayOption();
relayOption.setPayload(relaiedDhcp6);
relayMsg.setOptions(ImmutableList.of(relayOption));
UDP udp = new UDP();
udp.setSourcePort(UDP.DHCP_V6_SERVER_PORT);
udp.setDestinationPort(UDP.DHCP_V6_SERVER_PORT);
udp.setPayload(relayMsg);
udp.setChecksum((short) 0x019d);
IPv6 ipv6 = new IPv6();
ipv6.setHopLimit((byte) 64);
ipv6.setSourceAddress(SERVER_LL.toOctets());
ipv6.setDestinationAddress(DOWNSTREAM_LL.toOctets());
ipv6.setNextHeader(IPv6.PROTOCOL_UDP);
ipv6.setTrafficClass((byte) 0);
ipv6.setFlowLabel(0x000c72ef);
ipv6.setPayload(udp);
Ethernet eth = new Ethernet();
eth.setDestinationMACAddress(DOWNSTREAM_MAC);
eth.setSourceMACAddress(SERVER_MAC);
eth.setEtherType(Ethernet.TYPE_IPV6);
eth.setPayload(ipv6);
assertArrayEquals(Resources.toByteArray(Dhcp6RelayTest.class.getResource(REPLY)),
eth.serialize());
}
}