| /******************************************************************************* |
| * Copyright (c) 2014, 2019 Ericsson |
| * |
| * All rights reserved. This program and the accompanying materials are |
| * made available under the terms of the Eclipse Public License 2.0 which |
| * accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Vincent Perot - Initial API and implementation |
| ******************************************************************************/ |
| |
| package org.eclipse.tracecompass.tmf.pcap.core.tests.event; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.fail; |
| import static org.junit.Assume.assumeTrue; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.nio.ByteOrder; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.eclipse.jdt.annotation.NonNull; |
| import org.eclipse.jdt.annotation.Nullable; |
| import org.eclipse.tracecompass.internal.pcap.core.packet.BadPacketException; |
| import org.eclipse.tracecompass.internal.pcap.core.packet.Packet; |
| import org.eclipse.tracecompass.internal.pcap.core.protocol.ipv4.IPv4Packet; |
| import org.eclipse.tracecompass.internal.pcap.core.trace.BadPcapFileException; |
| import org.eclipse.tracecompass.internal.pcap.core.trace.PcapFile; |
| import org.eclipse.tracecompass.internal.tmf.pcap.core.event.PcapEventField; |
| import org.eclipse.tracecompass.internal.tmf.pcap.core.event.PcapRootEventField; |
| import org.eclipse.tracecompass.pcap.core.tests.shared.PcapTestTrace; |
| import org.eclipse.tracecompass.tmf.core.event.ITmfEventField; |
| import org.eclipse.tracecompass.tmf.core.event.TmfEventField; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| /** |
| * JUnit that test the PcapEventField class. |
| * |
| * @author Vincent Perot |
| */ |
| public class PcapEventFieldTest { |
| |
| private static final @NonNull String EMPTY_STRING = ""; |
| private static PcapEventField fRegularField; |
| private static PcapRootEventField fRootField; |
| |
| /** |
| * Initialize the Packet and the Event. |
| * |
| * @throws BadPcapFileException |
| * Thrown when the pcap file is erroneous. |
| * @throws IOException |
| * Thrown when an IO error occurs. |
| * @throws BadPacketException |
| * Thrown when the packet is erroneous. |
| */ |
| @BeforeClass |
| public static void setUp() throws IOException, BadPcapFileException, BadPacketException { |
| ByteBuffer bb = ByteBuffer.allocate(25); |
| bb.order(ByteOrder.BIG_ENDIAN); |
| |
| // Version + IHL |
| bb.put((byte) 0x46); |
| |
| // DSCP + ECN |
| bb.put((byte) 0x9A); |
| |
| // Total length - this is randomly chosen so that we verify that the |
| // packet handles wrong total length. |
| bb.put((byte) 0x00); |
| bb.put((byte) 0xFF); |
| |
| // Identification |
| bb.put((byte) 0x0F); |
| bb.put((byte) 0xF0); |
| |
| // Flags + Fragment Offset |
| bb.put((byte) 0x1E); |
| bb.put((byte) 0xE1); |
| |
| // Time to live |
| bb.put((byte) 0xA0); |
| |
| // Protocol - Unknown |
| bb.put((byte) 0xFE); |
| |
| // Header checksum - chosen randomly |
| bb.put((byte) 0x33); |
| bb.put((byte) 0x44); |
| |
| // Source IP - 4 bytes |
| bb.put((byte) 192); |
| bb.put((byte) 168); |
| bb.put((byte) 1); |
| bb.put((byte) 0); |
| |
| // Destination IP - 4 bytes |
| bb.put((byte) 193); |
| bb.put((byte) 169); |
| bb.put((byte) 2); |
| bb.put((byte) 1); |
| |
| // Options - 4 bytes |
| bb.put((byte) 0xA2); |
| bb.put((byte) 0x56); |
| bb.put((byte) 0xA2); |
| bb.put((byte) 0x56); |
| |
| // Payload - 1 byte |
| bb.put((byte) 0xA6); |
| |
| bb.flip(); |
| |
| PcapTestTrace trace = PcapTestTrace.MOSTLY_TCP; |
| assumeTrue(trace.exists()); |
| try (PcapFile file = trace.getTrace()) { |
| IPv4Packet packet = new IPv4Packet(file, null, bb); |
| ITmfEventField[] fieldArray = generatePacketFields(packet); |
| fRegularField = new PcapEventField("Regular Field", EMPTY_STRING, fieldArray, packet); |
| fRootField = new PcapRootEventField(fieldArray, packet); |
| } |
| } |
| |
| /** |
| * Method that tests the copy constructor. |
| */ |
| @Test |
| public void copyConstructorTest() { |
| PcapEventField oldField = fRegularField; |
| if (oldField == null) { |
| fail("The field has not been initialized!"); |
| return; |
| } |
| PcapEventField newField = new PcapEventField(oldField); |
| assertEquals(fRegularField.hashCode(), newField.hashCode()); |
| assertEquals(fRegularField, newField); |
| } |
| |
| /** |
| * Method that tests a standard field value request. |
| */ |
| @Test |
| public void regularFieldValueRequestTest() { |
| ITmfEventField field = fRootField.getField("Internet Protocol Version 4"); |
| if (field == null) { |
| fail("The field is null!"); |
| return; |
| } |
| |
| ITmfEventField subfield = field.getField("Source IP Address"); |
| if (subfield == null) { |
| fail("The subfield is null!"); |
| return; |
| } |
| |
| String string = subfield.getValue().toString(); |
| assertEquals("192.168.1.0", string); |
| } |
| |
| /** |
| * Method that tests a custom field value request. |
| */ |
| @Test |
| public void customFieldValueRequestTest() { |
| ITmfEventField field = fRootField.getField(":protocol:"); |
| if (field == null) { |
| fail("The field is null!"); |
| return; |
| } |
| String string = field.getValue().toString(); |
| assertEquals("IPV4", string); |
| |
| field = fRootField.getField(":packetsource:"); |
| if (field == null) { |
| fail("The field is null!"); |
| return; |
| } |
| string = field.getValue().toString(); |
| assertEquals("192.168.1.0", string); |
| |
| field = fRootField.getField(":packetdestination:"); |
| if (field == null) { |
| fail("The field is null!"); |
| return; |
| } |
| string = field.getValue().toString(); |
| assertEquals("193.169.2.1", string); |
| |
| } |
| |
| /** |
| * Method that teststhe toString() method for a non-root field. |
| */ |
| @Test |
| public void regularToStringTest() { |
| assertEquals("Src: 192.168.1.0 , Dst: 193.169.2.1", fRegularField.toString()); |
| } |
| |
| /** |
| * Method that teststhe toString() method for a root field. |
| */ |
| @Test |
| public void rootToStringTest() { |
| assertEquals("192.168.1.0 > 193.169.2.1 Id=4080 Len=1", fRootField.toString()); |
| } |
| |
| // Convenience method |
| private static ITmfEventField @NonNull [] generatePacketFields(Packet packet) { |
| List<ITmfEventField> fieldList = new ArrayList<>(); |
| List<ITmfEventField> subfieldList = new ArrayList<>(); |
| Packet localPacket = packet; |
| |
| while (localPacket != null) { |
| subfieldList.clear(); |
| for (Map.Entry<@NonNull String, @NonNull String> entry : localPacket.getFields().entrySet()) { |
| @Nullable String key = entry.getKey(); |
| @Nullable String value = entry.getValue(); |
| subfieldList.add(new TmfEventField(key, value, null)); |
| } |
| ITmfEventField[] subfieldArray = subfieldList.toArray(new ITmfEventField[subfieldList.size()]); |
| fieldList.add(new PcapEventField(localPacket.getProtocol().getName(), EMPTY_STRING, subfieldArray, localPacket)); |
| localPacket = localPacket.getChildPacket(); |
| } |
| |
| return fieldList.toArray(new ITmfEventField[fieldList.size()]); |
| } |
| |
| } |