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.IcmpV6CommonPacket.IcmpV6CommonHeader;
import org.pcap4j.packet.namednumber.EtherType;
import org.pcap4j.packet.namednumber.IcmpV6Code;
import org.pcap4j.packet.namednumber.IcmpV6Type;
import org.pcap4j.packet.namednumber.IpNumber;
import org.pcap4j.packet.namednumber.IpVersion;
import org.pcap4j.util.MacAddress;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@SuppressWarnings("javadoc")
public class IcmpV6CommonPacketTest extends AbstractPacketTest {
private static final Logger logger
= LoggerFactory.getLogger(IcmpV6CommonPacketTest.class);
private final IcmpV6CommonPacket packet;
private final IcmpV6Type type;
private final IcmpV6Code code;
private final short checksum;
private final Inet6Address srcAddr;
private final Inet6Address dstAddr;
public IcmpV6CommonPacketTest() {
UnknownPacket.Builder unknownb = new UnknownPacket.Builder();
unknownb.rawData(new byte[] { (byte)0, (byte)1, (byte)2, (byte)3 });
IcmpV6EchoRequestPacket.Builder echob = new IcmpV6EchoRequestPacket.Builder();
echob.identifier((short)100)
.sequenceNumber((short)10)
.payloadBuilder(unknownb);
this.type = IcmpV6Type.ECHO_REQUEST;
this.code = IcmpV6Code.NO_CODE;
this.checksum = (short)0x1234;
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();
}
IcmpV6CommonPacket.Builder b = new IcmpV6CommonPacket.Builder();
b.type(type)
.code(code)
.checksum(checksum)
.srcAddr(srcAddr)
.dstAddr(dstAddr)
.correctChecksumAtBuild(false)
.payloadBuilder(echob);
this.packet = b.build();
}
@Override
protected Packet getPacket() {
return packet;
}
@Override
protected Packet getWholePacket() {
IpV6Packet.Builder ipv6b = new IpV6Packet.Builder();
ipv6b.version(IpVersion.IPV6)
.trafficClass(IpV6SimpleTrafficClass.newInstance((byte)0x12))
.flowLabel(IpV6SimpleFlowLabel.newInstance(0x12345))
.nextHeader(IpNumber.ICMPV6)
.hopLimit((byte)100)
.srcAddr(srcAddr)
.dstAddr(dstAddr)
.correctLengthAtBuild(true)
.payloadBuilder(
packet.getBuilder()
.srcAddr(srcAddr).dstAddr(dstAddr).correctChecksumAtBuild(true)
);
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(ipv6b)
.paddingAtBuild(true);
return eb.build();
}
@BeforeClass
public static void setUpBeforeClass() throws Exception {
logger.info(
"########## " + IcmpV6CommonPacketTest.class.getSimpleName() + " START ##########"
);
}
@AfterClass
public static void tearDownAfterClass() throws Exception {
}
@Test
public void testNewPacket() {
try {
IcmpV6CommonPacket p
= IcmpV6CommonPacket.newPacket(packet.getRawData(), 0, packet.getRawData().length);
assertEquals(packet, p);
} catch (IllegalRawDataException e) {
throw new AssertionError(e);
}
}
@Test
public void testNewPacketRandom() {
RandomPacketTester.testClass(IcmpV6CommonPacket.class, packet);
}
@Test
public void testGetHeader() {
IcmpV6CommonHeader h = packet.getHeader();
assertEquals(type, h.getType());
assertEquals(code, h.getCode());
assertEquals(checksum, h.getChecksum());
}
@Test
public void testHasValidChecksum() {
IcmpV6CommonPacket.Builder b = packet.getBuilder();
b.srcAddr(srcAddr).dstAddr(dstAddr);
IcmpV6CommonPacket p = b.correctChecksumAtBuild(false).build();
assertFalse(packet.hasValidChecksum(srcAddr, dstAddr, false));
assertFalse(packet.hasValidChecksum(srcAddr, dstAddr, true));
b.checksum((short)0).correctChecksumAtBuild(false);
p = b.build();
assertFalse(p.hasValidChecksum(srcAddr, dstAddr, false));
assertTrue(p.hasValidChecksum(srcAddr, dstAddr, true));
b.checksum((short)1234).correctChecksumAtBuild(true);
p = b.build();
assertTrue(p.hasValidChecksum(srcAddr, dstAddr, false));
assertTrue(p.hasValidChecksum(srcAddr, dstAddr, true));
}
}