package org.pcap4j.packet;
import static org.junit.Assert.*;
import java.net.Inet6Address;
import java.net.InetAddress;
import java.net.UnknownHostException;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.pcap4j.packet.IpV6Packet.IpV6FlowLabel;
import org.pcap4j.packet.IpV6Packet.IpV6Header;
import org.pcap4j.packet.IpV6Packet.IpV6TrafficClass;
import org.pcap4j.packet.namednumber.EtherType;
import org.pcap4j.packet.namednumber.IpNumber;
import org.pcap4j.packet.namednumber.IpVersion;
import org.pcap4j.packet.namednumber.UdpPort;
import org.pcap4j.util.MacAddress;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@SuppressWarnings("javadoc")
public class IpV6PacketTest extends AbstractPacketTest {
private static final Logger logger
= LoggerFactory.getLogger(IpV6PacketTest.class);
private final IpVersion version;
private final IpV6TrafficClass trafficClass;
private final IpV6FlowLabel flowLabel;
private final short payloadLength;
private final IpNumber nextHeader;
private final byte hopLimit;
private final Inet6Address srcAddr;
private final Inet6Address dstAddr;
private final IpV6Packet packet;
public IpV6PacketTest() throws Exception {
this.version = IpVersion.IPV6;
this.trafficClass = IpV6SimpleTrafficClass.newInstance((byte)0x12);
this.flowLabel = IpV6SimpleFlowLabel.newInstance(0x12345);
this.payloadLength = (short)12;
this.nextHeader = IpNumber.UDP;
this.hopLimit = (byte)100;
try {
this.srcAddr
= (Inet6Address)InetAddress.getByName("2001:db8::3:2:1");
this.dstAddr
= (Inet6Address)InetAddress.getByName("2001:db8::3:2:2");
} catch (UnknownHostException e) {
throw new AssertionError();
}
UnknownPacket.Builder unknownb = new UnknownPacket.Builder();
unknownb.rawData(new byte[] { (byte)0, (byte)1, (byte)2, (byte)3 });
UdpPacket.Builder udpb = new UdpPacket.Builder();
udpb.dstPort(UdpPort.getInstance((short)0))
.srcPort(UdpPort.SNMP_TRAP)
.dstAddr(dstAddr)
.srcAddr(srcAddr)
.payloadBuilder(unknownb)
.correctChecksumAtBuild(true)
.correctLengthAtBuild(true);
IpV6Packet.Builder b = new IpV6Packet.Builder();
b.version(version)
.trafficClass(trafficClass)
.flowLabel(flowLabel)
.payloadLength(payloadLength)
.nextHeader(nextHeader)
.hopLimit(hopLimit)
.srcAddr(srcAddr)
.dstAddr(dstAddr)
.correctLengthAtBuild(false)
.payloadBuilder(udpb);
this.packet = b.build();
}
@Override
protected Packet getPacket() {
return packet;
}
@Override
protected Packet getWholePacket() {
EthernetPacket.Builder eb = new EthernetPacket.Builder();
eb.dstAddr(MacAddress.getByName("fe:00:00:00:00:02"))
.srcAddr(MacAddress.getByName("fe:00:00:00:00:01"))
.type(EtherType.IPV6)
.payloadBuilder(packet.getBuilder())
.paddingAtBuild(true);
eb.get(UdpPacket.Builder.class)
.dstAddr(packet.getHeader().getDstAddr())
.srcAddr(packet.getHeader().getSrcAddr());
return eb.build();
}
@BeforeClass
public static void setUpBeforeClass() throws Exception {
logger.info(
"########## " + IpV6PacketTest.class.getSimpleName() + " START ##########"
);
}
@AfterClass
public static void tearDownAfterClass() throws Exception {
}
@Test
public void testNewPacket() {
try {
IpV6Packet p
= IpV6Packet.newPacket(packet.getRawData(), 0, packet.getRawData().length);
assertEquals(packet, p);
} catch (IllegalRawDataException e) {
throw new AssertionError(e);
}
}
@Test
public void testNewPacketRandom() {
RandomPacketTester.testClass(IpV6Packet.class, packet);
}
@Test
public void testGetHeader() {
IpV6Header h = packet.getHeader();
assertEquals(version, h.getVersion());
assertEquals(trafficClass, h.getTrafficClass());
assertEquals(flowLabel, h.getFlowLabel());
assertEquals(payloadLength, h.getPayloadLength());
assertEquals(nextHeader, h.getNextHeader());
assertEquals(hopLimit, h.getHopLimit());
assertEquals(srcAddr, h.getSrcAddr());
assertEquals(dstAddr, h.getDstAddr());
IpV6Packet.Builder b = packet.getBuilder();
IpV6Packet p;
b.payloadLength((short)0);
b.hopLimit((byte)0);
p = b.build();
assertEquals((short)0, (short)p.getHeader().getPayloadLengthAsInt());
assertEquals((byte)0, (byte)p.getHeader().getHopLimitAsInt());
b.payloadLength((short)-1);
b.hopLimit((byte)-1);
p = b.build();
assertEquals((short)-1, (short)p.getHeader().getPayloadLengthAsInt());
assertEquals((byte)-1, (byte)p.getHeader().getHopLimitAsInt());
b.payloadLength((short)32767);
b.hopLimit((byte)127);
p = b.build();
assertEquals((short)32767, (short)p.getHeader().getPayloadLengthAsInt());
assertEquals((byte)127, (byte)p.getHeader().getHopLimitAsInt());
b.payloadLength((short)-32768);
b.hopLimit((byte)-128);
p = b.build();
assertEquals((short)-32768, (short)p.getHeader().getPayloadLengthAsInt());
assertEquals((byte)-128, (byte)p.getHeader().getHopLimitAsInt());
}
}