public void Test_Constructor_ConstructWithValues()
        {
            var frame = new ContentionFreeEndFrame(PhysicalAddress.Parse("111111111111"),
                                                   PhysicalAddress.Parse("222222222222"))
            {
                FrameControl = { ToDS = false, FromDS = true, MoreFragments = true },
                Duration     = { Field = 0x1234 }
            };

            frame.UpdateFrameCheckSequence();
            var fcs = frame.FrameCheckSequence;

            var bytes            = frame.Bytes;
            var byteArraySegment = new ByteArraySegment(bytes);

            //create a new frame that should be identical to the original
            var recreatedFrame = MacFrame.ParsePacket(byteArraySegment) as ContentionFreeEndFrame;

            recreatedFrame.UpdateFrameCheckSequence();

            Assert.AreEqual(FrameControlField.FrameSubTypes.ControlCFEnd, recreatedFrame.FrameControl.SubType);
            Assert.IsFalse(recreatedFrame.FrameControl.ToDS);
            Assert.IsTrue(recreatedFrame.FrameControl.FromDS);
            Assert.IsTrue(recreatedFrame.FrameControl.MoreFragments);
            Assert.AreEqual(0x1234, recreatedFrame.Duration.Field);

            Assert.AreEqual("111111111111", recreatedFrame.ReceiverAddress.ToString().ToUpper());
            Assert.AreEqual("222222222222", recreatedFrame.BssId.ToString().ToUpper());

            Assert.AreEqual(fcs, recreatedFrame.FrameCheckSequence);
        }
            public void Test_Constructor()
            {
                var dev = new CaptureFileReaderDevice("../../CaptureFiles/80211_contention_free_end_frame.pcap");

                dev.Open();
                var rawCapture = dev.GetNextPacket();

                dev.Close();

                Packet p = Packet.ParsePacket(rawCapture.LinkLayerType, rawCapture.Data);
                ContentionFreeEndFrame frame = (ContentionFreeEndFrame)p.PayloadPacket;

                Assert.AreEqual(0, frame.FrameControl.ProtocolVersion);
                Assert.AreEqual(FrameControlField.FrameSubTypes.ControlCFEnd, frame.FrameControl.SubType);
                Assert.IsFalse(frame.FrameControl.ToDS);
                Assert.IsFalse(frame.FrameControl.FromDS);
                Assert.IsFalse(frame.FrameControl.MoreFragments);
                Assert.IsFalse(frame.FrameControl.Retry);
                Assert.IsFalse(frame.FrameControl.PowerManagement);
                Assert.IsFalse(frame.FrameControl.MoreData);
                Assert.IsFalse(frame.FrameControl.Protected);
                Assert.IsTrue(frame.FrameControl.Order);
                Assert.AreEqual(0, frame.Duration.Field);  //this need expanding on in the future
                Assert.AreEqual("FFFFFFFFFFFF", frame.ReceiverAddress.ToString().ToUpper());
                Assert.AreEqual("001B2FDCFC12", frame.BssId.ToString().ToUpper());

                Assert.AreEqual(0x0AE8A403, frame.FrameCheckSequence);
                Assert.AreEqual(16, frame.FrameSize);
            }
            public void Test_Constructor_ConstructWithValues ()
            {
                ContentionFreeEndFrame frame = new ContentionFreeEndFrame (PhysicalAddress.Parse ("111111111111"),
                                                                           PhysicalAddress.Parse ("222222222222"));
                
                frame.FrameControl.ToDS = false;
                frame.FrameControl.FromDS = true;
                frame.FrameControl.MoreFragments = true;
                
                frame.Duration.Field = 0x1234;
                
                frame.UpdateFrameCheckSequence ();
                UInt32 fcs = frame.FrameCheckSequence;
                
                var bytes = frame.Bytes;
                var bas = new ByteArraySegment (bytes);

                //create a new frame that should be identical to the original
                ContentionFreeEndFrame recreatedFrame = MacFrame.ParsePacket (bas) as ContentionFreeEndFrame;
                recreatedFrame.UpdateFrameCheckSequence();
                
                Assert.AreEqual (FrameControlField.FrameSubTypes.ControlCFEnd, recreatedFrame.FrameControl.SubType);
                Assert.IsFalse (recreatedFrame.FrameControl.ToDS);
                Assert.IsTrue (recreatedFrame.FrameControl.FromDS);
                Assert.IsTrue (recreatedFrame.FrameControl.MoreFragments);
                Assert.AreEqual (0x1234, recreatedFrame.Duration.Field);
                
                Assert.AreEqual ("111111111111", recreatedFrame.ReceiverAddress.ToString ().ToUpper ());
                Assert.AreEqual ("222222222222", recreatedFrame.BssId.ToString ().ToUpper ());
                
                Assert.AreEqual (fcs, recreatedFrame.FrameCheckSequence);
                
            }
        public void Test_ConstructorWithCorruptBuffer()
        {
            //buffer is way too short for frame. We are just checking it doesn't throw
            byte[] corruptBuffer = { 0x01 };
            var    frame         = new ContentionFreeEndFrame(new ByteArraySegment(corruptBuffer));

            Assert.IsFalse(frame.FcsValid);
        }
Exemple #5
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            /// <summary>
            /// Parses the <see cref="Kavprot.Packets.Utils.ByteArraySegment"/> into a MacFrame.
            /// </summary>
            /// <returns>
            /// The parsed MacFrame or null if it could not be parsed.
            /// </returns>
            /// <param name='bas'>
            /// The bytes of the packet. bas.Offset should point to the first byte in the mac frame.
            /// </param>
            /// <remarks>If the provided bytes contain the FCS then call <see cref="MacFrame.ParsePacketWithFcs"/> instead. The presence of the
            /// FCS is usually determined by configuration of the device used to capture the packets.</remarks>
            public static MacFrame ParsePacket(ByteArraySegment bas)
            {
                if (bas.Length < MacFields.FrameControlLength)
                {
                    //there isn't enough data to even try and work out what type of packet it is
                    return(null);
                }
                //this is a bit ugly as we will end up parsing the framecontrol field twice, once here and once
                //inside the packet constructor. Could create the framecontrol and pass it to the packet but I think that is equally ugly
                FrameControlField frameControl = new FrameControlField(
                    EndianBitConverter.Big.ToUInt16(bas.Bytes, bas.Offset));

                MacFrame macFrame = null;

                switch (frameControl.SubType)
                {
                case FrameControlField.FrameSubTypes.ManagementAssociationRequest:
                {
                    macFrame = new AssociationRequestFrame(bas);
                    break;
                }

                case FrameControlField.FrameSubTypes.ManagementAssociationResponse:
                {
                    macFrame = new AssociationResponseFrame(bas);
                    break;
                }

                case FrameControlField.FrameSubTypes.ManagementReassociationRequest:
                {
                    macFrame = new ReassociationRequestFrame(bas);
                    break;
                }

                case FrameControlField.FrameSubTypes.ManagementReassociationResponse:
                {
                    macFrame = new AssociationResponseFrame(bas);
                    break;
                }

                case FrameControlField.FrameSubTypes.ManagementProbeRequest:
                {
                    macFrame = new ProbeRequestFrame(bas);
                    break;
                }

                case FrameControlField.FrameSubTypes.ManagementProbeResponse:
                {
                    macFrame = new ProbeResponseFrame(bas);
                    break;
                }

                case FrameControlField.FrameSubTypes.ManagementReserved0:
                    break; //TODO

                case FrameControlField.FrameSubTypes.ManagementReserved1:
                    break; //TODO

                case FrameControlField.FrameSubTypes.ManagementBeacon:
                {
                    macFrame = new BeaconFrame(bas);
                    break;
                }

                case FrameControlField.FrameSubTypes.ManagementATIM:
                    break; //TODO

                case FrameControlField.FrameSubTypes.ManagementDisassociation:
                {
                    macFrame = new DisassociationFrame(bas);
                    break;
                }

                case FrameControlField.FrameSubTypes.ManagementAuthentication:
                {
                    macFrame = new AuthenticationFrame(bas);
                    break;
                }

                case FrameControlField.FrameSubTypes.ManagementDeauthentication:
                {
                    macFrame = new DeauthenticationFrame(bas);
                    break;
                }

                case FrameControlField.FrameSubTypes.ManagementAction:
                {
                    macFrame = new ActionFrame(bas);
                    break;
                }

                case FrameControlField.FrameSubTypes.ManagementReserved3:
                    break; //TODO

                case FrameControlField.FrameSubTypes.ControlBlockAcknowledgmentRequest:
                {
                    macFrame = new BlockAcknowledgmentRequestFrame(bas);
                    break;
                }

                case FrameControlField.FrameSubTypes.ControlBlockAcknowledgment:
                {
                    macFrame = new BlockAcknowledgmentFrame(bas);
                    break;
                }

                case FrameControlField.FrameSubTypes.ControlPSPoll:
                    break; //TODO

                case FrameControlField.FrameSubTypes.ControlRTS:
                {
                    macFrame = new RtsFrame(bas);
                    break;
                }

                case FrameControlField.FrameSubTypes.ControlCTS:
                {
                    macFrame = new CtsFrame(bas);
                    break;
                }

                case FrameControlField.FrameSubTypes.ControlACK:
                {
                    macFrame = new AckFrame(bas);
                    break;
                }

                case FrameControlField.FrameSubTypes.ControlCFEnd:
                {
                    macFrame = new ContentionFreeEndFrame(bas);
                    break;
                }

                case FrameControlField.FrameSubTypes.ControlCFEndCFACK:
                    break; //TODO

                case FrameControlField.FrameSubTypes.Data:
                case FrameControlField.FrameSubTypes.DataCFACK:
                case FrameControlField.FrameSubTypes.DataCFPoll:
                case FrameControlField.FrameSubTypes.DataCFAckCFPoll:
                {
                    macFrame = new DataDataFrame(bas);
                    break;
                }

                case FrameControlField.FrameSubTypes.DataNullFunctionNoData:
                case FrameControlField.FrameSubTypes.DataCFAckNoData:
                case FrameControlField.FrameSubTypes.DataCFPollNoData:
                case FrameControlField.FrameSubTypes.DataCFAckCFPollNoData:
                {
                    macFrame = new NullDataFrame(bas);
                    break;
                }

                case FrameControlField.FrameSubTypes.QosData:
                case FrameControlField.FrameSubTypes.QosDataAndCFAck:
                case FrameControlField.FrameSubTypes.QosDataAndCFPoll:
                case FrameControlField.FrameSubTypes.QosDataAndCFAckAndCFPoll:
                {
                    macFrame = new QosDataFrame(bas);
                    break;
                }

                case FrameControlField.FrameSubTypes.QosNullData:
                case FrameControlField.FrameSubTypes.QosCFAck:
                case FrameControlField.FrameSubTypes.QosCFPoll:
                case FrameControlField.FrameSubTypes.QosCFAckAndCFPoll:
                {
                    macFrame = new QosNullDataFrame(bas);
                    break;
                }

                default:
                    //this is an unsupported (and unknown) packet type
                    break;
                }

                return(macFrame);
            }
			public void Test_ConstructorWithCorruptBuffer ()
			{
				//buffer is way too short for frame. We are just checking it doesn't throw
				byte[] corruptBuffer = new byte[]{0x01};
				ContentionFreeEndFrame frame = new ContentionFreeEndFrame(new ByteArraySegment(corruptBuffer));
				Assert.IsFalse(frame.FCSValid);
			}