Example #1
0
        public void IpV4AddressRandomTest()
        {
            Assert.AreEqual(IpV4Address.AllHostsGroupAddress, new IpV4Address("224.0.0.1"));

            Random random = new Random();

            for (int i = 0; i != 1000; ++i)
            {
                IpV4Address address = random.NextIpV4Address();

                Assert.AreEqual(address, new IpV4Address(address.ToString()));
                Assert.IsTrue(address == new IpV4Address(address.ToString()));
                Assert.IsFalse(address != new IpV4Address(address.ToString()));
                Assert.AreEqual(address.GetHashCode(), new IpV4Address(address.ToString()).GetHashCode());
                Assert.AreEqual(address, new IpV4Address(address.ToValue()));
                
                Assert.AreNotEqual(address, random.NextIpV4Address());
                Assert.IsFalse(address == random.NextIpV4Address());
                Assert.IsTrue(address != random.NextIpV4Address());
                Assert.AreNotEqual(address.GetHashCode(), random.NextIpV4Address().GetHashCode());

                Assert.AreNotEqual(2, address);
                Assert.IsFalse(address.Equals(null));
            }
        }
Example #2
0
        public void InvalidGreTest()
        {
            EthernetLayer ethernetLayer = new EthernetLayer
                                              {
                                                  Source = new MacAddress("00:01:02:03:04:05"),
                                                  Destination = new MacAddress("A0:A1:A2:A3:A4:A5")
                                              };

            Random random = new Random();

            for (int i = 0; i != 100; ++i)
            {
                IpV4Layer ipV4Layer = random.NextIpV4Layer(IpV4Protocol.Gre);
                ipV4Layer.HeaderChecksum = null;

                GreLayer greLayer = random.NextGreLayer();
                greLayer.Checksum = null;
                greLayer.Routing = new List<GreSourceRouteEntry>
                                   {
                                       new GreSourceRouteEntryAs(new List<ushort> {123}.AsReadOnly(), 0),
                                       new GreSourceRouteEntryIp(new List<IpV4Address> {random.NextIpV4Address()}.AsReadOnly(),
                                                                 0)
                                   }.AsReadOnly();

                PacketBuilder packetBuilder = new PacketBuilder(ethernetLayer, ipV4Layer, greLayer);
                Packet packet = packetBuilder.Build(DateTime.Now);
                Assert.IsTrue(packet.IsValid ||
                              new[] {EthernetType.IpV4, EthernetType.Arp, EthernetType.VLanTaggedFrame}.Contains(greLayer.ProtocolType),
                              "IsValid. ProtoclType=" + greLayer.ProtocolType);

                GreDatagram gre = packet.Ethernet.IpV4.Gre;

                // Remove a byte from routing
                Datagram newIpPayload = new Datagram(gre.Take(gre.Length - 1).ToArray());
                packetBuilder = new PacketBuilder(ethernetLayer, ipV4Layer, new PayloadLayer {Data = newIpPayload});
                packet = packetBuilder.Build(DateTime.Now);
                Assert.IsNull(packet.Ethernet.IpV4.Gre.Payload);
                Assert.IsFalse(packet.IsValid);

                // SreLength is too big
                byte[] buffer = gre.ToArray();
                buffer[buffer.Length - 1] = 200;
                newIpPayload = new Datagram(buffer);
                packetBuilder = new PacketBuilder(ethernetLayer, ipV4Layer, new PayloadLayer {Data = newIpPayload});
                packet = packetBuilder.Build(DateTime.Now);
                Assert.IsFalse(packet.IsValid);

                // PayloadOffset is too big
                buffer = gre.ToArray();
                buffer[gre.Length - 10] = 100;
                newIpPayload = new Datagram(buffer);
                packetBuilder = new PacketBuilder(ethernetLayer, ipV4Layer, new PayloadLayer {Data = newIpPayload});
                packet = packetBuilder.Build(DateTime.Now);
                Assert.IsFalse(packet.IsValid);

                // PayloadOffset isn't aligned to ip
                buffer = gre.ToArray();
                buffer[gre.Length - 10] = 3;
                newIpPayload = new Datagram(buffer);
                packetBuilder = new PacketBuilder(ethernetLayer, ipV4Layer, new PayloadLayer {Data = newIpPayload});
                packet = packetBuilder.Build(DateTime.Now);
                Assert.IsFalse(packet.IsValid);

                // PayloadOffset isn't aligned to as
                buffer = gre.ToArray();
                buffer[gre.Length - 16] = 1;
                newIpPayload = new Datagram(buffer);
                packetBuilder = new PacketBuilder(ethernetLayer, ipV4Layer, new PayloadLayer {Data = newIpPayload});
                packet = packetBuilder.Build(DateTime.Now);
                Assert.IsFalse(packet.IsValid);
            }
        }
Example #3
0
        public void IpV4AddressWithBufferTest()
        {
            Random random = new Random();

            for (int i = 0; i != 1000; ++i)
            {
                IpV4Address address = random.NextIpV4Address();

                byte[] buffer = new byte[IpV4Address.SizeOf];

                buffer.Write(0, address, Endianity.Big);
                Assert.AreEqual(address, buffer.ReadIpV4Address(0, Endianity.Big));
                Assert.AreNotEqual(address, buffer.ReadIpV4Address(0, Endianity.Small));

                buffer.Write(0, address, Endianity.Small);
                Assert.AreEqual(address, buffer.ReadIpV4Address(0, Endianity.Small));
                Assert.AreNotEqual(address, buffer.ReadIpV4Address(0, Endianity.Big));
            }
        }
Example #4
0
        public void IcmpRouterAdvertisementEntryTest()
        {
            Random random = new Random();
            IcmpRouterAdvertisementEntry entry1 = new IcmpRouterAdvertisementEntry(random.NextIpV4Address(), random.Next());
            IcmpRouterAdvertisementEntry entry2 = new IcmpRouterAdvertisementEntry(random.NextIpV4Address(), random.Next());

            Assert.AreEqual(entry1, entry1);
            Assert.AreEqual(entry1.GetHashCode(), entry1.GetHashCode());
            Assert.AreNotEqual(entry1, entry2);
            Assert.AreNotEqual(entry1.GetHashCode(), entry2.GetHashCode());
        }