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/*
* Copyright 2014-2015 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 org.junit.BeforeClass;
import org.junit.Test;
import static org.hamcrest.Matchers.is;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
/**
* Tests for class {@link TCP}.
*/
public class TCPTest {
private static final byte[] IPV4_SOURCE_ADDRESS = {
(byte) 192, (byte) 168, (byte) 1, (byte) 1
};
private static final byte[] IPV4_DESTINATION_ADDRESS = {
(byte) 192, (byte) 168, (byte) 1, (byte) 2
};
private static final byte[] IPV6_SOURCE_ADDRESS = {
(byte) 0xfe, (byte) 0x80, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x01
};
private static final byte[] IPV6_DESTINATION_ADDRESS = {
(byte) 0xfe, (byte) 0x80, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x02
};
private static IPv4 ipv4 = new IPv4();
private static IPv6 ipv6 = new IPv6();
private static byte[] bytePacketTCP4 = {
(byte) 0x00, (byte) 0x50, (byte) 0x00, (byte) 0x60, // src,dst port
(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x10, // seq
(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x20, // ack
(byte) 0x50, (byte) 0x02, // offset,flag
(byte) 0x10, (byte) 0x00, // window
(byte) 0x1b, (byte) 0xae, // checksum
(byte) 0x00, (byte) 0x01 // urgent
};
private static byte[] bytePacketTCP6 = {
(byte) 0x00, (byte) 0x50, (byte) 0x00, (byte) 0x60, // src,dst port
(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x10, // seq
(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x20, // ack
(byte) 0x50, (byte) 0x02, // offset,flag
(byte) 0x10, (byte) 0x00, // window
(byte) 0xa1, (byte) 0xfd, // checksum
(byte) 0x00, (byte) 0x01 // urgent
};
private static Deserializer<TCP> deserializer;
@BeforeClass
public static void setUpBeforeClass() throws Exception {
deserializer = TCP.deserializer();
ipv4.setSourceAddress(IPv4.toIPv4Address(IPV4_SOURCE_ADDRESS));
ipv4.setDestinationAddress(IPv4.toIPv4Address(IPV4_DESTINATION_ADDRESS));
ipv4.setProtocol(IPv4.PROTOCOL_TCP);
ipv6.setSourceAddress(IPV6_SOURCE_ADDRESS);
ipv6.setDestinationAddress(IPV6_DESTINATION_ADDRESS);
ipv6.setNextHeader(IPv6.PROTOCOL_TCP);
}
/**
* Tests serialize and setters.
*/
@Test
public void testSerialize() {
TCP tcp = new TCP();
tcp.setSourcePort(0x50);
tcp.setDestinationPort(0x60);
tcp.setSequence(0x10);
tcp.setAcknowledge(0x20);
tcp.setDataOffset((byte) 0x5);
tcp.setFlags((short) 0x2);
tcp.setWindowSize((short) 0x1000);
tcp.setUrgentPointer((short) 0x1);
tcp.setParent(ipv4);
assertArrayEquals(bytePacketTCP4, tcp.serialize());
tcp.resetChecksum();
tcp.setParent(ipv6);
assertArrayEquals(bytePacketTCP6, tcp.serialize());
}
@Test
public void testDeserializeBadInput() throws Exception {
PacketTestUtils.testDeserializeBadInput(deserializer);
}
@Test
public void testDeserializeTruncated() throws Exception {
PacketTestUtils.testDeserializeTruncated(deserializer, bytePacketTCP4);
}
/**
* Tests deserialize and getters.
*/
@Test
public void testDeserialize() throws Exception {
TCP tcp = deserializer.deserialize(bytePacketTCP4, 0, bytePacketTCP4.length);
assertThat(tcp.getSourcePort(), is(0x50));
assertThat(tcp.getDestinationPort(), is(0x60));
assertThat(tcp.getSequence(), is(0x10));
assertThat(tcp.getAcknowledge(), is(0x20));
assertThat(tcp.getDataOffset(), is((byte) 0x5));
assertThat(tcp.getFlags(), is((short) 0x2));
assertThat(tcp.getWindowSize(), is((short) 0x1000));
assertThat(tcp.getUrgentPointer(), is((short) 0x1));
assertThat(tcp.getChecksum(), is((short) 0x1bae));
}
/**
* Tests comparator.
*/
@Test
public void testEqual() {
TCP tcp1 = new TCP();
tcp1.setSourcePort(0x50);
tcp1.setDestinationPort(0x60);
tcp1.setSequence(0x10);
tcp1.setAcknowledge(0x20);
tcp1.setDataOffset((byte) 0x5);
tcp1.setFlags((short) 0x2);
tcp1.setWindowSize((short) 0x1000);
tcp1.setUrgentPointer((short) 0x1);
TCP tcp2 = new TCP();
tcp2.setSourcePort(0x70);
tcp2.setDestinationPort(0x60);
tcp2.setSequence(0x10);
tcp2.setAcknowledge(0x20);
tcp2.setDataOffset((byte) 0x5);
tcp2.setFlags((short) 0x2);
tcp2.setWindowSize((short) 0x1000);
tcp2.setUrgentPointer((short) 0x1);
assertTrue(tcp1.equals(tcp1));
assertFalse(tcp1.equals(tcp2));
}
}
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