package org.pcap4j.packet;
import static org.junit.Assert.*;
import java.net.InetAddress;
import java.net.UnknownHostException;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.pcap4j.packet.LinuxSllPacket.LinuxSllHeader;
import org.pcap4j.packet.namednumber.ArpHardwareType;
import org.pcap4j.packet.namednumber.ArpOperation;
import org.pcap4j.packet.namednumber.DataLinkType;
import org.pcap4j.packet.namednumber.EtherType;
import org.pcap4j.packet.namednumber.LinuxSllPacketType;
import org.pcap4j.util.ByteArrays;
import org.pcap4j.util.LinkLayerAddress;
import org.pcap4j.util.MacAddress;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@SuppressWarnings("javadoc")
public class LinuxSllPacketTest extends AbstractPacketTest {
private static final Logger logger
= LoggerFactory.getLogger(LinuxSllPacketTest.class);
private final LinuxSllPacket packet;
private final LinuxSllPacketType packetType;
private final ArpHardwareType hardwareType;
private final short hardwareLength;
private final byte[] addressField;
private final LinkLayerAddress address;
private final EtherType protocol;
public LinuxSllPacketTest() {
this.packetType = LinuxSllPacketType.LINUX_SLL_HOST;
this.hardwareType = ArpHardwareType.ETHERNET;
this.hardwareLength = 4;
this.addressField
= new byte[] {
(byte)0xFF, (byte)0xEE, (byte)0xDD, (byte)0xCC,
0x11, 0x22, 0x33, 0x44
};
this.address = LinkLayerAddress.getByAddress(
new byte[] {(byte)0xFF, (byte)0xEE, (byte)0xDD, (byte)0xCC}
);
this.protocol = EtherType.ARP;
ArpPacket.Builder ab = new ArpPacket.Builder();
try {
ab.hardwareType(ArpHardwareType.ETHERNET)
.protocolType(EtherType.IPV4)
.hardwareLength((byte)MacAddress.SIZE_IN_BYTES)
.protocolLength((byte)ByteArrays.INET4_ADDRESS_SIZE_IN_BYTES)
.srcHardwareAddr(MacAddress.getByName("aa:bb:cc:dd:ee:ff"))
.dstHardwareAddr(MacAddress.getByName("11:22:33:44:55:66"))
.srcProtocolAddr(
InetAddress.getByAddress(
new byte[] { (byte)192, (byte)0, (byte)2, (byte)1 }
)
)
.dstProtocolAddr(
InetAddress.getByAddress(
new byte[] { (byte)192, (byte)0, (byte)2, (byte)2 }
)
)
.operation(ArpOperation.REQUEST);
} catch (UnknownHostException e) {
throw new AssertionError();
}
LinuxSllPacket.Builder eb = new LinuxSllPacket.Builder();
eb.packetType(packetType)
.hardwareType(hardwareType)
.hardwareLength(hardwareLength)
.address(addressField)
.protocol(protocol)
.payloadBuilder(ab);
this.packet = eb.build();
}
@Override
protected Packet getPacket() {
return packet;
}
@Override
protected Packet getWholePacket() {
return packet;
}
@Override
protected DataLinkType getDataLinkType() {
return DataLinkType.LINUX_SLL;
}
@BeforeClass
public static void setUpBeforeClass() throws Exception {
logger.info(
"########## " + LinuxSllPacketTest.class.getSimpleName() + " START ##########"
);
}
@AfterClass
public static void tearDownAfterClass() throws Exception {
}
@Test
public void testNewPacket() {
try {
LinuxSllPacket p
= LinuxSllPacket.newPacket(packet.getRawData(), 0, packet.getRawData().length);
assertEquals(packet, p);
} catch (IllegalRawDataException e) {
throw new AssertionError(e);
}
}
@Test
public void testGetHeader() {
LinuxSllHeader h = packet.getHeader();
assertEquals(packetType, h.getPacketType());
assertEquals(hardwareType, h.getHardwareType());
assertEquals(hardwareLength, h.getHardwareLength());
assertEquals(address, h.getAddress());
assertArrayEquals(addressField, h.getAddressField());
assertEquals(protocol, h.getProtocol());
LinuxSllPacket.Builder b = packet.getBuilder();
LinuxSllPacket p;
b.hardwareLength((short)1);
p = b.build();
assertEquals((short)1, (short)p.getHeader().getHardwareLengthAsInt());
b.hardwareLength((short)10000);
p = b.build();
assertEquals((short)10000, (short)p.getHeader().getHardwareLengthAsInt());
b.hardwareLength((short)32767);
p = b.build();
assertEquals((short)32767, (short)p.getHeader().getHardwareLengthAsInt());
b.hardwareLength((short)-1);
p = b.build();
assertEquals((short)-1, (short)p.getHeader().getHardwareLengthAsInt());
b.hardwareLength((short)-32768);
p = b.build();
assertEquals((short)-32768, (short)p.getHeader().getHardwareLengthAsInt());
}
}