| 1 | /******************************************************************************* |
| 2 | * Copyright (c) 2014 Ericsson |
| 3 | * |
| 4 | * All rights reserved. This program and the accompanying materials are |
| 5 | * made available under the terms of the Eclipse Public License v1.0 which |
| 6 | * accompanies this distribution, and is available at |
| 7 | * http://www.eclipse.org/legal/epl-v10.html |
| 8 | * |
| 9 | * Contributors: |
| 10 | * Vincent Perot - Initial API and implementation |
| 11 | *******************************************************************************/ |
| 12 | |
| 13 | package org.eclipse.tracecompass.pcap.core.tests.packet; |
| 14 | |
| 15 | import static org.junit.Assert.fail; |
| 16 | import static org.junit.Assume.assumeTrue; |
| 17 | |
| 18 | import java.io.IOException; |
| 19 | import java.nio.ByteBuffer; |
| 20 | import java.nio.ByteOrder; |
| 21 | |
| 22 | import org.eclipse.tracecompass.internal.pcap.core.packet.BadPacketException; |
| 23 | import org.eclipse.tracecompass.internal.pcap.core.protocol.ethernet2.EthernetIIPacket; |
| 24 | import org.eclipse.tracecompass.internal.pcap.core.trace.BadPcapFileException; |
| 25 | import org.eclipse.tracecompass.internal.pcap.core.trace.PcapFile; |
| 26 | import org.eclipse.tracecompass.pcap.core.tests.shared.PcapTestTrace; |
| 27 | import org.junit.Before; |
| 28 | import org.junit.Test; |
| 29 | |
| 30 | /** |
| 31 | * JUnit Class that tests if BadPacketExceptions are thrown correctly. |
| 32 | * |
| 33 | * @author Vincent Perot |
| 34 | */ |
| 35 | public class BadPacketTest { |
| 36 | |
| 37 | private ByteBuffer fEthernetPacket; |
| 38 | |
| 39 | /** |
| 40 | * Initialize the packet. |
| 41 | */ |
| 42 | @Before |
| 43 | public void initialize() { |
| 44 | fEthernetPacket = ByteBuffer.allocate(8); |
| 45 | fEthernetPacket.order(ByteOrder.BIG_ENDIAN); |
| 46 | |
| 47 | // This packet is erroneous. It contains 8 bytes while the minimum is 14 |
| 48 | // bytes for an Ethernet II packet. |
| 49 | |
| 50 | // Destination MAC - 6 bytes |
| 51 | fEthernetPacket.put((byte) 0x34); |
| 52 | fEthernetPacket.put((byte) 0x67); |
| 53 | fEthernetPacket.put((byte) 0x0C); |
| 54 | fEthernetPacket.put((byte) 0xD2); |
| 55 | fEthernetPacket.put((byte) 0x91); |
| 56 | fEthernetPacket.put((byte) 0x51); |
| 57 | |
| 58 | // Source MAC - 2 bytes |
| 59 | fEthernetPacket.put((byte) 0x10); |
| 60 | fEthernetPacket.put((byte) 0xF8); |
| 61 | |
| 62 | fEthernetPacket.flip(); |
| 63 | |
| 64 | } |
| 65 | |
| 66 | /** |
| 67 | * Test that verify if a BadPacketException is correctly thrown (when a |
| 68 | * packet is erroneous). |
| 69 | * |
| 70 | * @throws BadPcapFileException |
| 71 | * Thrown when the file is erroneous. Fails the test. |
| 72 | * @throws IOException |
| 73 | * Thrown when an IO error occurs. Fails the test. |
| 74 | * @throws BadPacketException |
| 75 | * Thrown when a packet is erroneous. Expected from the test. |
| 76 | */ |
| 77 | @Test(expected = BadPacketException.class) |
| 78 | public void PacketExceptionTest() throws BadPacketException, IOException, BadPcapFileException { |
| 79 | PcapTestTrace trace = PcapTestTrace.MOSTLY_TCP; |
| 80 | assumeTrue(trace.exists()); |
| 81 | try (PcapFile dummy = new PcapFile(trace.getPath())) { |
| 82 | ByteBuffer packet = fEthernetPacket; |
| 83 | if (packet != null) { |
| 84 | new EthernetIIPacket(dummy, null, packet); |
| 85 | } |
| 86 | fail("PacketExceptionTest has failed!"); |
| 87 | } |
| 88 | } |
| 89 | } |