Ejemplo n.º 1
1
        private static void CreateRandomUdpPayload(Random random, UdpLayer udpLayer, List<ILayer> layers)
        {
            if (random.NextBool(20))
            {
                // Finish with payload.
                PayloadLayer payloadLayer = random.NextPayloadLayer(random.Next(100));
                layers.Add(payloadLayer);
                return;
            }

            DnsLayer dnsLayer = random.NextDnsLayer();
            layers.Add(dnsLayer);

            ushort specialPort = (ushort)(random.NextBool() ? 53 : 5355);
            if (dnsLayer.IsQuery)
                udpLayer.DestinationPort = specialPort;
            else
                udpLayer.SourcePort = specialPort;
        }
Ejemplo n.º 2
0
    public static void RotateToPoint(this ITransform trans, GridLocation loc, System.Random rand)
    {
        switch (loc)
        {
        case GridLocation.RIGHT:
        case GridLocation.LEFT:
            trans.YRotation = rand.NextBool() ? -90 : 90;
            break;

        case GridLocation.TOPRIGHT:
        case GridLocation.BOTTOMLEFT:
            trans.YRotation = rand.NextBool() ? 45 : -135;
            break;

        case GridLocation.BOTTOMRIGHT:
        case GridLocation.TOPLEFT:
            trans.YRotation = rand.NextBool() ? -45 : 135;
            break;

        case GridLocation.BOTTOM:
        case GridLocation.TOP:
            trans.YRotation = rand.NextBool() ? 0 : 180;
            break;
        }
    }
Ejemplo n.º 3
0
 private void CheckIntersectionCore(int capacity, Random r)
 {
     BitVector b1 = BitVector.Empty, b2 = BitVector.Empty;
     b1.EnsureCapacity(capacity);
     b2.EnsureCapacity(capacity);
     bool[] a1 = new bool[capacity], a2 = new bool[capacity];
     for (int i = 0; i < capacity; i++)
     {
         b1[i] = a1[i] = r.NextBool();
         b2[i] = a2[i] = r.NextBool();
     }
     bool changed = b1.IntersectWith(b2);
     bool changed2 = false;
     for (int i = 0; i < capacity; i++)
     {
         bool a = a1[i];
         a1[i] &= a2[i];
         changed2 |= (a != a1[i]);
     }
     for (int i = 0; i < capacity; i++)
     {
         Assert.Equal(a1[i], b1[i]);
     }
     Assert.Equal(changed, changed2);
 }
        public PandaStats CreateChildStats(PandaStats father, PandaStats mother)
        {
            _random = new Random(_createdPandasCount++);
            Assert.IsTrue(father.Genotype.Count == mother.Genotype.Count);

            var newGenotype = DrawSingleValuesAndMutate(father.Genotype)
                              .Join(DrawSingleValuesAndMutate(mother.Genotype), c => c.Trait, c => c.Trait,
                                    (fatherGene, motherGene) => new Gene()
            {
                FatherGene = fatherGene.Value, MotherGene = motherGene.Value, Trait = fatherGene.Trait
            })
                              .ToList();
            Phenotype newPhenotype = CreatePhenotype(newGenotype);

            var gender = _random.NextBool() ? Gender.Male : Gender.Female;

            return(new PandaStats()
            {
                name = $"Panda No:{_createdPandasCount}",
                birthdate = _createdPandasCount,
                gender = gender,
                Genotype = newGenotype,
                Phenotype = newPhenotype
            });
        }
Ejemplo n.º 5
0
        private static void TestRandom()
        {
            long time = DateTime.Now.Ticks;
            Random rand = new Random();

            int t = 0, f = 0;
            for (int i = 0; i < 10000; i++)
            {
                bool b = rand.NextBool();

                if (b)
                {
                    t++;
                }
                else
                {
                    f++;
                }
            }

            VersatileIO.WriteComplex("&aTRUE: {0}\n&cFALSE: {1}".Fmt(t, f), '&');
            long elapsedTicks = DateTime.Now.Ticks - time;
            TimeSpan dtime = TimeSpan.FromTicks(elapsedTicks);
            VersatileIO.WriteLine("Elapsed time: {0} ms".Fmt(dtime.TotalMilliseconds));
        }
Ejemplo n.º 6
0
        public void RandomUdpTest()
        {
            EthernetLayer ethernetLayer = new EthernetLayer
                                              {
                                                  Source = new MacAddress("00:01:02:03:04:05"),
                                                  Destination = new MacAddress("A0:A1:A2:A3:A4:A5")
                                              };

            int seed = new Random().Next();
            Console.WriteLine("Seed: " + seed);
            Random random = new Random(seed);

            for (int i = 0; i != 1000; ++i)
            {
                IpV4Layer ipV4Layer = random.NextIpV4Layer(null);
                ipV4Layer.HeaderChecksum = null;
                IpV6Layer ipV6Layer = random.NextIpV6Layer(IpV4Protocol.Udp, false);

                EthernetType ethernetType = random.NextBool() ? EthernetType.IpV4 : EthernetType.IpV6;
                Layer ipLayer = (ethernetType == EthernetType.IpV4 ? (Layer)ipV4Layer : ipV6Layer);
                UdpLayer udpLayer = random.NextUdpLayer();
                udpLayer.Checksum = null;

                PayloadLayer payloadLayer = random.NextPayloadLayer(random.Next(60000));

                Packet packet = PacketBuilder.Build(DateTime.Now, ethernetLayer, ipLayer, udpLayer, payloadLayer);

                Assert.IsTrue(packet.IsValid, "IsValid");

                // Ethernet
                ethernetLayer.EtherType = ethernetType;
                Assert.AreEqual(ethernetLayer, packet.Ethernet.ExtractLayer(), "Ethernet Layer");
                ethernetLayer.EtherType = EthernetType.None;

                // Ip
                if (ipLayer == ipV4Layer)
                {
                    // IpV4.
                    ipV4Layer.Protocol = IpV4Protocol.Udp;
                    ipV4Layer.HeaderChecksum = ((IpV4Layer)packet.Ethernet.IpV4.ExtractLayer()).HeaderChecksum;
                    Assert.AreEqual(ipV4Layer, packet.Ethernet.IpV4.ExtractLayer(), "IP Layer");
                    ipV4Layer.HeaderChecksum = null;
                }
                else
                {
                    // IpV6.
                    Assert.AreEqual(ipV6Layer, packet.Ethernet.IpV6.ExtractLayer(), "IP Layer");
                }

                // UDP
                udpLayer.Checksum = packet.Ethernet.Ip.Udp.Checksum;
                Assert.AreEqual(udpLayer, packet.Ethernet.Ip.Udp.ExtractLayer(), "UDP Layer");
                Assert.AreEqual(UdpDatagram.HeaderLength + payloadLayer.Length, packet.Ethernet.Ip.Udp.TotalLength, "Total Length");
                Assert.IsTrue(!udpLayer.CalculateChecksum && packet.Ethernet.Ip.Udp.Checksum == 0 ||
                              udpLayer.CalculateChecksum && packet.Ethernet.Ip.IsTransportChecksumCorrect, "IsTransportChecksumCorrect");
                Assert.IsTrue(packet.Ethernet.Ip.Udp.IsChecksumOptional, "IsChecksumOptional");
                Assert.AreEqual(payloadLayer.Data, packet.Ethernet.Ip.Udp.Payload, "Payload");
            }
        }
Ejemplo n.º 7
0
 public static decimal NextDecimal(this System.Random generator)
 => new decimal(
     generator.NextInt(),
     generator.NextInt(),
     generator.NextInt(),
     generator.NextBool(),
     generator.NextByte()
     );
Ejemplo n.º 8
0
 /// <summary> Returns randomly a number or another cell reference </summary>
 private static string RndVar(System.Random random, DataStore <CellsModel> store)
 {
     if (random.NextBool())
     {
         return("" + random.Next(-10, 10));
     }
     // With 50% prob. return a random other cell reference, currently in use:
     return("" + random.NextRndChild(store.GetState().cells).Key);
 }
Ejemplo n.º 9
0
 public void initGene()
 {
     for (int x = 0; x < gene.Length; x++)
     {
         gene[x] = rnd.NextBool();
         // gene[x] = true;
     }
     gene[gene.Length - 2] = false;
 }
Ejemplo n.º 10
0
        public void RandomDnsTest()
        {
            EthernetLayer ethernetLayer = new EthernetLayer
            {
                Source = new MacAddress("00:01:02:03:04:05"),
                Destination = new MacAddress("A0:A1:A2:A3:A4:A5")
            };

            int seed = new Random().Next();
            Console.WriteLine("Seed: " + seed);
            Random random = new Random(seed);

            for (int i = 0; i != 1000; ++i)
            {
                IpV4Layer ipV4Layer = random.NextIpV4Layer(null);
                ipV4Layer.HeaderChecksum = null;
                Layer ipLayer = random.NextBool() ? (Layer)ipV4Layer : random.NextIpV6Layer(true);

                UdpLayer udpLayer = random.NextUdpLayer();
                udpLayer.Checksum = null;

                DnsLayer dnsLayer;
                do
                {
                    dnsLayer = random.NextDnsLayer();
                } while (dnsLayer.Length > 65000 - ipLayer.Length);

                Packet packet = PacketBuilder.Build(DateTime.Now, ethernetLayer, ipLayer, udpLayer, dnsLayer);

                Assert.IsTrue(packet.IsValid, "IsValid");

                // DNS
                DnsLayer actualLayer = (DnsLayer)packet.Ethernet.Ip.Udp.Dns.ExtractLayer();
                Assert.AreEqual(dnsLayer, actualLayer, "DNS Layer");
                Assert.IsTrue(packet.Ethernet.Ip.Udp.Dns.IsValid);

                DnsDataResourceRecord opt = packet.Ethernet.Ip.Udp.Dns.Additionals.FirstOrDefault(additional => additional.DnsType == DnsType.Opt);
                Assert.AreEqual(opt, packet.Ethernet.Ip.Udp.Dns.OptionsRecord);

                foreach (var record in packet.Ethernet.Ip.Udp.Dns.ResourceRecords)
                {
                    Assert.IsTrue(record.Equals(record));
                    Assert.IsTrue(record.DomainName.Equals((object)record.DomainName));
                    Assert.IsTrue(record.DomainName.Equals((object)record.DomainName));
                    Assert.AreEqual(record.GetHashCode(), record.GetHashCode());
                }

                foreach (var record in packet.Ethernet.Ip.Udp.Dns.DataResourceRecords)
                {
                    MoreAssert.IsBiggerOrEqual(9, record.ToString().Length);
                    Assert.IsTrue(record.Equals((object)record));
                    Assert.IsInstanceOfType(record.Data, DnsResourceData.GetDnsResourceDataType(record.DnsType) ?? typeof(DnsResourceDataAnything));
                    Assert.IsTrue(record.DomainName.Equals((object)record.DomainName));
                    Assert.IsFalse(record.Data.Equals(null));
                }
            }
        }
Ejemplo n.º 11
0
        public Island(Vector2 location, Random random)
        {
            Location = location;

            Effects = random.NextBool() ? SpriteEffects.None : SpriteEffects.FlipHorizontally;
            Texture = IslandsCurses.Textures["island"];
            Ratio = new Vector2(random.NextRatio(60) * (IslandSpace.X / Texture.Width), random.NextRatio(60) * (IslandSpace.Y / Texture.Width));

            Status = Status.Normal;
        }
Ejemplo n.º 12
0
        private void CheckRandomDataCore(Random r1, Random r2, int capacity)
        {
            BitVector d = BitVector.Create(capacity);
            Assert.Equal(capacity, d.Capacity);
            for (int i1 = 0; i1 < capacity; i1++)
                d[i1] = r1.NextBool();
            Assert.Equal(capacity, d.Capacity);

            for (int i2 = 0; i2 < capacity; i2++)
                Assert.Equal(d[i2], r2.NextBool());
        }
Ejemplo n.º 13
0
    public static void RotateToPoint(this ITransform trans, GridDirection dir, System.Random rand)
    {
        switch (dir)
        {
        case GridDirection.HORIZ:
            trans.YRotation = rand.NextBool() ? 90 : -90;
            break;

        case GridDirection.VERT:
            trans.YRotation = rand.NextBool() ? 180 : 0;
            break;

        case GridDirection.DIAGTLBR:
            trans.YRotation = rand.NextBool() ? -45 : 135;
            break;

        case GridDirection.DIAGBLTR:
            trans.YRotation = rand.NextBool() ? 45 : -135;
            break;
        }
    }
Ejemplo n.º 14
0
        public static object Next(this System.Random generator, Type desired)
        {
            switch (Type.GetTypeCode(desired))
            {
            case TypeCode.Boolean:
                return(generator.NextBool());

            case TypeCode.Byte:
                return(generator.NextByte());

            case TypeCode.Char:
                return(generator.NextChar());

            case TypeCode.DateTime:
                return(generator.NextDateTime());

            case TypeCode.Decimal:
                return(generator.NextDecimal());

            case TypeCode.Double:
                return(generator.NextDouble());

            case TypeCode.Int16:
                return(generator.NextShort());

            case TypeCode.Int32:
                return(generator.NextInt());

            case TypeCode.Int64:
                return(generator.NextLong());

            case TypeCode.SByte:
                return(generator.NextSByte());

            case TypeCode.Single:
                return(generator.NextFloat());

            case TypeCode.UInt16:
                return(generator.NextUShort());

            case TypeCode.UInt32:
                return(generator.NextUInt());

            case TypeCode.UInt64:
                return(generator.NextULong());

            default:
                throw new ArgumentOutOfRangeException("Cannot provide a random " + desired);
            }
        }
Ejemplo n.º 15
0
        public void Merge8BoolRandomTest()
        {
            Random random = new Random();
            for (int i = 0; i != 10; ++i)
            {
                byte expectedResult = 0;
                bool[] input = new bool[8];
                for (int bit = 0; bit != 8; ++bit)
                {
                    bool bitValue = random.NextBool();
                    input[bit] = bitValue;
                    expectedResult <<= 1;
                    if (bitValue)
                        ++expectedResult;
                }

                Assert.AreEqual(expectedResult, BitSequence.Merge(input[0], input[1], input[2], input[3], input[4], input[5], input[6], input[7]));
            }
        }
Ejemplo n.º 16
0
        /// <summary>
        /// Returns a SELECT command that retrieves data from a table
        /// </summary>
        private String GetSelectCommandForMultipleRows(Random rnd, DbCommand com, TableMetadata inputTable, bool isXml)
        {
            int rowcount = rnd.Next(Depth);

            StringBuilder cmdText = new StringBuilder();
            cmdText.Append("SELECT TOP ");
            cmdText.Append(rowcount); //Jonfo added this to prevent table scan of 75k row tables
            cmdText.Append(" PrimaryKey");

            List<TableColumn> columns = inputTable.Columns;
            int colindex = rnd.Next(0, columns.Count);

            for (int i = 0; i <= colindex; i++)
            {
                if (columns[i].ColumnName == "PrimaryKey") continue;
                cmdText.Append(", ");
                cmdText.Append(columns[i].ColumnName);
            }

            cmdText.Append(" FROM \"");
            cmdText.Append(inputTable.TableName);
            cmdText.Append("\" WITH(NOLOCK) WHERE PrimaryKey ");

            // We randomly pick an operator from '>' or '=' to allow for randomization
            // of possible rows returned by this query. This approach *may* help 
            // in reducing the likelihood of multiple threads accessing same rows.
            // If multiple threads access same rows, there may be locking issues
            // which may be avoided because of this randomization.
            string op = rnd.NextBool() ? ">" : "=";
            cmdText.Append(op).Append(" ");

            string pName = GetParameterName("P0");
            cmdText.Append(pName);

            DbParameter param = DbFactory.CreateParameter();
            param.ParameterName = pName;
            param.Value = GetRandomPK(rnd, inputTable);
            param.DbType = DbType.Int32;
            com.Parameters.Add(param);

            return cmdText.ToString();
        }
Ejemplo n.º 17
0
        private DbCommand CreateCommand(Random rnd, DataStressConnection conn)
        {
            DbCommand cmd;
            if (conn == null)
            {
                cmd = DbFactory.CreateCommand();
            }
            else
            {
                cmd = conn.CreateCommand();
            }

            if (rnd != null)
            {
                cmd.CommandTimeout = rnd.NextBool() ? 30 : 600;
            }

            return cmd;
        }
Ejemplo n.º 18
0
        public void RandomHttpTest()
        {
            int seed = new Random().Next();
            Console.WriteLine("Seed: " + seed);
            Random random = new Random(seed);

            for (int i = 0; i != 200; ++i)
            {
                EthernetLayer ethernetLayer = random.NextEthernetLayer(EthernetType.None);
                IpV4Layer ipV4Layer = random.NextIpV4Layer(null);
                ipV4Layer.HeaderChecksum = null;
                Layer ipLayer = random.NextBool() ? (Layer)ipV4Layer : random.NextIpV6Layer(true);
                TcpLayer tcpLayer = random.NextTcpLayer();
                tcpLayer.Checksum = null;
                HttpLayer httpLayer = random.NextHttpLayer();

                Packet packet = PacketBuilder.Build(DateTime.Now, ethernetLayer, ipLayer, tcpLayer, httpLayer);
                Assert.IsTrue(packet.IsValid, "IsValid");

                HttpDatagram httpDatagram = packet.Ethernet.Ip.Tcp.Http;
                Assert.AreEqual(httpLayer.Version, httpDatagram.Version);
                if (httpLayer.Version != null)
                    Assert.AreEqual(httpLayer.Version.GetHashCode(), httpDatagram.Version.GetHashCode());
                if (httpLayer is HttpRequestLayer)
                {
                    Assert.IsTrue(httpDatagram.IsRequest);
                    Assert.IsTrue(httpLayer.IsRequest);
                    Assert.IsFalse(httpDatagram.IsResponse);
                    Assert.IsFalse(httpLayer.IsResponse);

                    HttpRequestLayer httpRequestLayer = (HttpRequestLayer)httpLayer;
                    HttpRequestDatagram httpRequestDatagram = (HttpRequestDatagram)httpDatagram;
                    Assert.AreEqual(httpRequestLayer.Method, httpRequestDatagram.Method);
                    if (httpRequestLayer.Method != null)
                    {
                        Assert.AreEqual(httpRequestLayer.Method.GetHashCode(), httpRequestDatagram.Method.GetHashCode());
                        Assert.AreEqual(httpRequestLayer.Method.KnownMethod, httpRequestDatagram.Method.KnownMethod);
                    }
                    Assert.AreEqual(httpRequestLayer.Uri, httpRequestDatagram.Uri);
                }
                else
                {
                    Assert.IsFalse(httpDatagram.IsRequest);
                    Assert.IsFalse(httpLayer.IsRequest);
                    Assert.IsTrue(httpDatagram.IsResponse);
                    Assert.IsTrue(httpLayer.IsResponse);

                    HttpResponseLayer httpResponseLayer = (HttpResponseLayer)httpLayer;
                    HttpResponseDatagram httpResponseDatagram = (HttpResponseDatagram)httpDatagram;
                    Assert.AreEqual(httpResponseLayer.StatusCode, httpResponseDatagram.StatusCode);
                    Assert.AreEqual(httpResponseLayer.ReasonPhrase, httpResponseDatagram.ReasonPhrase);
                }
                Assert.AreEqual(httpLayer.Header, httpDatagram.Header);
                if (httpLayer.Header != null)
                {
                    Assert.AreEqual(httpLayer.Header.GetHashCode(), httpDatagram.Header.GetHashCode());

                    foreach (var field in httpLayer.Header)
                        Assert.IsFalse(field.Equals("abc"));
                    foreach (var field in (IEnumerable)httpLayer.Header)
                        Assert.IsFalse(field.Equals("abc"));

                    MoreAssert.AreSequenceEqual(httpLayer.Header.Select(field => field.GetHashCode()), httpDatagram.Header.Select(field => field.GetHashCode()));

                    if (httpLayer.Header.ContentType != null)
                    {
                        var parameters = httpLayer.Header.ContentType.Parameters;
                        Assert.IsNotNull(((IEnumerable)parameters).GetEnumerator());
                        Assert.AreEqual<object>(parameters, httpDatagram.Header.ContentType.Parameters);
                        Assert.AreEqual(parameters.GetHashCode(), httpDatagram.Header.ContentType.Parameters.GetHashCode());
                        Assert.AreEqual(parameters.Count, httpDatagram.Header.ContentType.Parameters.Count);
                        int maxParameterNameLength = parameters.Any() ? parameters.Max(pair => pair.Key.Length) : 0;
                        Assert.IsNull(parameters[new string('a', maxParameterNameLength + 1)]);
                    }
                }
                Assert.AreEqual(httpLayer.Body, httpDatagram.Body);
                Assert.AreEqual(httpLayer, httpDatagram.ExtractLayer(), "HTTP Layer");
                Assert.AreEqual(httpLayer.Length, httpDatagram.Length);
            }
        }
Ejemplo n.º 19
0
        private static void CreateRandomTcpPayload(Random random, TcpLayer tcpLayer, List<ILayer> layers)
        {
            if (random.NextBool(20))
            {
                // Finish with payload.
                PayloadLayer payloadLayer = random.NextPayloadLayer(random.Next(100));
                layers.Add(payloadLayer);
                return;
            }

            HttpLayer httpLayer = random.NextHttpLayer();
            layers.Add(httpLayer);
            if (httpLayer.IsRequest)
                tcpLayer.DestinationPort = 80;
            else
                tcpLayer.SourcePort = 80;

            if (random.NextBool())
                return;

            HttpLayer httpLayer2 = httpLayer.IsRequest ? (HttpLayer)random.NextHttpRequestLayer() : random.NextHttpResponseLayer();
            layers.Add(httpLayer2);
        }
Ejemplo n.º 20
0
        public void RandomIgmpTest()
        {
            EthernetLayer ethernetLayer = new EthernetLayer
                                              {
                                                  Source = new MacAddress("00:01:02:03:04:05"),
                                                  Destination = new MacAddress("A0:A1:A2:A3:A4:A5")
                                              };

            int seed = new Random().Next();
            Console.WriteLine("Seed: " + seed);
            Random random = new Random(seed);

            for (int i = 0; i != 200; ++i)
            {
                IpV4Layer ipV4Layer = random.NextIpV4Layer(null);
                ipV4Layer.HeaderChecksum = null;
                Layer ipLayer = random.NextBool() ? (Layer)ipV4Layer : random.NextIpV6Layer(IpV4Protocol.InternetGroupManagementProtocol, false);

                IgmpLayer igmpLayer = random.NextIgmpLayer();

                Packet packet = PacketBuilder.Build(DateTime.Now, ethernetLayer, ipLayer, igmpLayer);

                Assert.IsTrue(packet.IsValid, "IsValid");

                // Ethernet
                ethernetLayer.EtherType = ipLayer == ipV4Layer ? EthernetType.IpV4 : EthernetType.IpV6;
                Assert.AreEqual(ethernetLayer, packet.Ethernet.ExtractLayer(), "Ethernet Layer");
                ethernetLayer.EtherType = EthernetType.None;

                // IP.
                if (ipV4Layer == ipLayer)
                {
                    // IPv4.
                    ipV4Layer.Protocol = IpV4Protocol.InternetGroupManagementProtocol;
                    ipV4Layer.HeaderChecksum = ((IpV4Layer)packet.Ethernet.IpV4.ExtractLayer()).HeaderChecksum;
                    Assert.AreEqual(ipV4Layer, packet.Ethernet.IpV4.ExtractLayer(), "IPv4 Layer");
                    ipV4Layer.HeaderChecksum = null;
                }
                else
                {
                    // IPv6.
                    Assert.AreEqual(ipLayer, packet.Ethernet.IpV6.ExtractLayer(), "IPv6 Layer");
                }

                // IGMP
                Assert.IsTrue(packet.Ethernet.Ip.Igmp.IsChecksumCorrect);
                Assert.AreEqual(igmpLayer, packet.Ethernet.Ip.Igmp.ExtractLayer(), "IGMP Layer");
                Assert.AreEqual(igmpLayer.GetHashCode(), packet.Ethernet.Ip.Igmp.ExtractLayer().GetHashCode(), "IGMP Layer");
                Assert.AreNotEqual(igmpLayer, null);
                Assert.AreNotEqual(igmpLayer, random.NextPayloadLayer(igmpLayer.Length));
                Assert.AreNotEqual(igmpLayer.GetHashCode(), random.NextPayloadLayer(igmpLayer.Length).GetHashCode());
                if (packet.Ethernet.Ip.Igmp.QueryVersion != IgmpQueryVersion.Version3)
                    MoreAssert.IsSmallerOrEqual(IgmpDatagram.MaxMaxResponseTime, packet.Ethernet.Ip.Igmp.MaxResponseTime);
                if (packet.Ethernet.Ip.Igmp.MessageType != IgmpMessageType.MembershipQuery)
                    Assert.AreEqual(IgmpQueryVersion.None, packet.Ethernet.Ip.Igmp.QueryVersion);
                switch (igmpLayer.MessageTypeValue)
                {
                    case IgmpMessageType.CreateGroupRequestVersion0:
                    case IgmpMessageType.CreateGroupReplyVersion0:
                    case IgmpMessageType.JoinGroupRequestVersion0:
                    case IgmpMessageType.JoinGroupReplyVersion0:
                    case IgmpMessageType.LeaveGroupRequestVersion0:
                    case IgmpMessageType.LeaveGroupReplyVersion0:
                    case IgmpMessageType.ConfirmGroupRequestVersion0:
                    case IgmpMessageType.ConfirmGroupReplyVersion0:
                        Assert.AreEqual(0, packet.Ethernet.Ip.Igmp.Version);
                        IgmpVersion0Layer igmpVersion0Layer = (IgmpVersion0Layer)igmpLayer;
                        Assert.AreEqual(igmpVersion0Layer.IdentifierValue, packet.Ethernet.Ip.Igmp.Identifier);
                        Assert.AreEqual(igmpVersion0Layer.AccessKeyValue, packet.Ethernet.Ip.Igmp.AccessKey);

                        switch (igmpLayer.MessageTypeValue)
                        {
                            case IgmpMessageType.CreateGroupRequestVersion0:
                                Assert.AreEqual(((IgmpCreateGroupRequestVersion0Layer)igmpLayer).CreateGroupRequestCode, packet.Ethernet.Ip.Igmp.CreateGroupRequestCode);
                                break;

                            case IgmpMessageType.CreateGroupReplyVersion0:
                            case IgmpMessageType.JoinGroupReplyVersion0:
                            case IgmpMessageType.LeaveGroupReplyVersion0:
                            case IgmpMessageType.ConfirmGroupReplyVersion0:
                                IgmpReplyVersion0Layer igmpReplyVersion0Layer = (IgmpReplyVersion0Layer)igmpVersion0Layer;
                                Assert.AreEqual(igmpReplyVersion0Layer.Code, packet.Ethernet.Ip.Igmp.ReplyCode);
                                if (packet.Ethernet.Ip.Igmp.ReplyCode == IgmpVersion0ReplyCode.RequestPendingRetryInThisManySeconds)
                                    Assert.AreEqual(igmpReplyVersion0Layer.RetryInThisManySeconds, packet.Ethernet.Ip.Igmp.RetryInThisManySeconds);
                                break;
                        }

                        break;

                    case IgmpMessageType.MembershipQuery:
                        switch (igmpLayer.QueryVersion)
                        {
                            case IgmpQueryVersion.Version1:
                                Assert.AreEqual(1, packet.Ethernet.Ip.Igmp.Version);
                                break;

                            case IgmpQueryVersion.Version2:
                                Assert.AreEqual(2, packet.Ethernet.Ip.Igmp.Version);
                                break;

                            case IgmpQueryVersion.Version3:
                                Assert.AreEqual(3, packet.Ethernet.Ip.Igmp.Version);
                                break;

                            default:
                                Assert.Fail(igmpLayer.QueryVersion.ToString());
                                break;
                        }
                        break;

                    case IgmpMessageType.MembershipReportVersion1:
                        Assert.AreEqual(1, packet.Ethernet.Ip.Igmp.Version);
                        break;

                    case IgmpMessageType.MembershipReportVersion2:
                    case IgmpMessageType.LeaveGroupVersion2:
                        Assert.AreEqual(2, packet.Ethernet.Ip.Igmp.Version);
                        break;

                    case IgmpMessageType.MembershipReportVersion3:
                        Assert.AreEqual(3, packet.Ethernet.Ip.Igmp.Version);
                        break;

                    default:
                        Assert.Fail(igmpLayer.MessageTypeValue.ToString());
                        break;
                }
                foreach (IgmpGroupRecordDatagram groupRecord in packet.Ethernet.Ip.Igmp.GroupRecords)
                    Assert.IsNotNull(groupRecord.ToString());
            }
        }
Ejemplo n.º 21
0
 public static int NextNegative(this System.Random rand)
 {
     return(rand.NextBool() ? -1 : 1);
 }
Ejemplo n.º 22
0
 public bool ShouldModifySession(Random rnd)
 {
     // 33% of the time, we want to modify the user session on the server
     return rnd.NextBool(.33);
 }
Ejemplo n.º 23
0
        public void RandomGreTest()
        {
            EthernetLayer ethernetLayer = new EthernetLayer
                                              {
                                                  Source = new MacAddress("00:01:02:03:04:05"),
                                                  Destination = new MacAddress("A0:A1:A2:A3:A4:A5")
                                              };

            int seed = new Random().Next();
            Console.WriteLine("Seed: " + seed);
            Random random = new Random(seed);

            for (int i = 0; i != 200; ++i)
            {
                IpV4Layer ipV4Layer = random.NextIpV4Layer(null);
                ipV4Layer.HeaderChecksum = null;
                Layer ipLayer = random.NextBool() ? (Layer)ipV4Layer : random.NextIpV6Layer(IpV4Protocol.Gre, false);

                GreLayer greLayer = random.NextGreLayer();
                PayloadLayer payloadLayer = random.NextPayloadLayer(random.Next(100));

                PacketBuilder packetBuilder = new PacketBuilder(ethernetLayer, ipLayer, greLayer, payloadLayer);

                Packet packet = packetBuilder.Build(DateTime.Now);
                if (greLayer.Checksum == null &&
                    !new[] { EthernetType.IpV4, EthernetType.IpV6, EthernetType.Arp, EthernetType.VLanTaggedFrame }.Contains(packet.Ethernet.Ip.Gre.ProtocolType))
                {
                    Assert.IsTrue(packet.IsValid, "IsValid, ProtocolType=" + packet.Ethernet.Ip.Gre.ProtocolType);
                }

                // Ethernet
                ethernetLayer.EtherType = ipLayer == ipV4Layer ? EthernetType.IpV4 : EthernetType.IpV6;
                Assert.AreEqual(ethernetLayer, packet.Ethernet.ExtractLayer(), "Ethernet Layer");
                ethernetLayer.EtherType = EthernetType.None;

                // IP.
                if (ipLayer == ipV4Layer)
                {
                    // IPv4.
                    ipV4Layer.Protocol = IpV4Protocol.Gre;
                    ipV4Layer.HeaderChecksum = ((IpV4Layer)packet.Ethernet.Ip.ExtractLayer()).HeaderChecksum;
                    Assert.AreEqual(ipV4Layer, packet.Ethernet.Ip.ExtractLayer());
                    ipV4Layer.HeaderChecksum = null;
                    Assert.AreEqual(ipV4Layer.Length, packet.Ethernet.IpV4.HeaderLength);
                    Assert.IsTrue(packet.Ethernet.IpV4.IsHeaderChecksumCorrect);
                    Assert.AreEqual(ipV4Layer.Length + greLayer.Length + payloadLayer.Length,
                                    packet.Ethernet.Ip.TotalLength);
                    Assert.AreEqual(IpV4Datagram.DefaultVersion, packet.Ethernet.Ip.Version);
                } 
                else
                {
                    // IPv6.
                    Assert.AreEqual(ipLayer, packet.Ethernet.Ip.ExtractLayer());
                }

                // GRE
                GreDatagram actualGre = packet.Ethernet.Ip.Gre;
                GreLayer actualGreLayer = (GreLayer)actualGre.ExtractLayer();
                if (greLayer.ChecksumPresent && greLayer.Checksum == null)
                {
                    Assert.IsTrue(actualGre.IsChecksumCorrect);
                    greLayer.Checksum = actualGre.Checksum;
                }
                Assert.AreEqual(greLayer, actualGreLayer, "Layer");
                if (actualGreLayer.Key != null)
                    actualGreLayer.SetKey(actualGreLayer.KeyPayloadLength.Value, actualGreLayer.KeyCallId.Value);
                else
                {
                    Assert.IsNull(actualGreLayer.KeyPayloadLength);
                    Assert.IsNull(actualGreLayer.KeyCallId);
                }
                Assert.AreEqual(greLayer, actualGreLayer, "Layer");
                if (actualGre.KeyPresent)
                {
                    Assert.AreEqual(greLayer.KeyPayloadLength, actualGre.KeyPayloadLength, "KeyPayloadLength");
                    Assert.AreEqual(greLayer.KeyCallId, actualGre.KeyCallId, "KeyCallId");
                }
                Assert.AreNotEqual(random.NextGreLayer(), actualGreLayer, "Not Layer");
                Assert.AreEqual(greLayer.Length, actualGre.HeaderLength);
                Assert.IsTrue(actualGre.KeyPresent ^ (greLayer.Key == null));
                MoreAssert.IsSmaller(8, actualGre.RecursionControl);
                MoreAssert.IsSmaller(32, actualGre.FutureUseBits);
                Assert.IsTrue(actualGre.RoutingPresent ^ (greLayer.Routing == null && greLayer.RoutingOffset == null));
                Assert.IsTrue(actualGre.SequenceNumberPresent ^ (greLayer.SequenceNumber == null));
                Assert.IsTrue(!actualGre.StrictSourceRoute || actualGre.RoutingPresent);
                if (actualGre.RoutingPresent)
                {
                    Assert.IsNotNull(actualGre.ActiveSourceRouteEntryIndex);
                    if (actualGre.ActiveSourceRouteEntryIndex < actualGre.Routing.Count)
                        Assert.IsNotNull(actualGre.ActiveSourceRouteEntry);

                    foreach (GreSourceRouteEntry entry in actualGre.Routing)
                    {
                        Assert.AreNotEqual(entry, 2);
                        Assert.AreEqual(entry.GetHashCode(), entry.GetHashCode());
                        switch (entry.AddressFamily)
                        {
                            case GreSourceRouteEntryAddressFamily.AsSourceRoute:
                                GreSourceRouteEntryAs asEntry = (GreSourceRouteEntryAs)entry;
                                MoreAssert.IsInRange(0, asEntry.AsNumbers.Count, asEntry.NextAsNumberIndex);
                                if (asEntry.NextAsNumberIndex != asEntry.AsNumbers.Count)
                                    Assert.AreEqual(asEntry.AsNumbers[asEntry.NextAsNumberIndex], asEntry.NextAsNumber);
                                break;

                            case GreSourceRouteEntryAddressFamily.IpSourceRoute:
                                GreSourceRouteEntryIp ipEntry = (GreSourceRouteEntryIp)entry;
                                MoreAssert.IsInRange(0, ipEntry.Addresses.Count, ipEntry.NextAddressIndex);
                                if (ipEntry.NextAddressIndex != ipEntry.Addresses.Count)
                                    Assert.AreEqual(ipEntry.Addresses[ipEntry.NextAddressIndex], ipEntry.NextAddress);
                                break;

                            default:
                                GreSourceRouteEntryUnknown unknownEntry = (GreSourceRouteEntryUnknown)entry;
                                MoreAssert.IsInRange(0, unknownEntry.Data.Length, unknownEntry.PayloadOffset);
                                break;

                        }
                    }
                }
                else
                {
                    Assert.IsNull(actualGre.ActiveSourceRouteEntry);
                }

                Assert.IsNotNull(actualGre.Payload);
                switch (actualGre.ProtocolType)
                {
                    case EthernetType.IpV4:
                        Assert.IsNotNull(actualGre.IpV4);
                        break;

                    case EthernetType.Arp:
                        Assert.IsNotNull(actualGre.Arp);
                        break;
                }
            }
        }
Ejemplo n.º 24
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")
                                              };

            int seed = new Random().Next();
            Console.WriteLine("Seed: " + seed);
            Random random = new Random(seed);

            for (int i = 0; i != 100; ++i)
            {
                IpV4Layer ipV4Layer = random.NextIpV4Layer(IpV4Protocol.Gre);
                ipV4Layer.HeaderChecksum = null;
                Layer ipLayer = random.NextBool() ? (Layer)ipV4Layer : random.NextIpV6Layer(IpV4Protocol.Gre, false);

                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, ipLayer, greLayer);
                Packet packet = packetBuilder.Build(DateTime.Now);
                Assert.IsTrue(packet.IsValid ||
                              new[] { EthernetType.IpV4, EthernetType.IpV6, EthernetType.Arp, EthernetType.VLanTaggedFrame }.Contains(greLayer.ProtocolType),
                              "IsValid. ProtoclType=" + greLayer.ProtocolType);

                GreDatagram gre = packet.Ethernet.Ip.Gre;

                // Remove a byte from routing
                Datagram newIpPayload = new Datagram(gre.Take(gre.Length - 1).ToArray());
                packetBuilder = new PacketBuilder(ethernetLayer, ipLayer, new PayloadLayer {Data = newIpPayload});
                packet = packetBuilder.Build(DateTime.Now);
                Assert.IsNull(packet.Ethernet.Ip.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, ipLayer, 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, ipLayer, 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, ipLayer, 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, ipLayer, new PayloadLayer {Data = newIpPayload});
                packet = packetBuilder.Build(DateTime.Now);
                Assert.IsFalse(packet.IsValid);
            }
        }
Ejemplo n.º 25
0
 /// <summary>
 /// Handles the creation of random content for the LineDecoration.
 /// </summary>
 /// <param name="generator">The Random class that generates random numbers</param>
 protected override void OnRandomize(Random generator)
 {
     base.OnRandomize(generator);
     // _symbol is randomizable so the base method already will have randomized this class
     _flipAll = generator.NextBool();
     _flipFirst = generator.NextBool();
     _rotateWithLine = generator.NextBool();
     _numSymbols = generator.Next(0, 10);
     _offset = generator.NextDouble() * 10;
 }
Ejemplo n.º 26
0
        /// <summary>
        /// Returns a random UPDATE command
        /// </summary>  
        public DbCommand GetUpdateCommand(Random rnd, TableMetadata table, DataStressConnection conn)
        {
            DbCommand com = CreateCommand(rnd, conn);

            StringBuilder cmdText = new StringBuilder();
            cmdText.Append("UPDATE \"");
            cmdText.Append(table.TableName);
            cmdText.Append("\" SET ");

            List<TableColumn> columns = table.Columns;
            int numColumns = rnd.Next(2, columns.Count);
            bool mostlyNull = rnd.NextBool(0.1); // 10% of rows have 90% chance of each column being null, in order to test nbcrow

            for (int i = 0; i < numColumns; i++)
            {
                if (columns[i].ColumnName == "PrimaryKey") continue;
                if (columns[i].ColumnName.ToUpper() == "TIMESTAMP_FLD") continue;

                if (i > 1) cmdText.Append(", ");
                cmdText.Append(columns[i].ColumnName);
                cmdText.Append(" = ");

                if (mostlyNull && rnd.NextBool(0.9))
                {
                    cmdText.Append("NULL");
                }
                else
                {
                    DbParameter param = CreateRandomParameter(rnd, string.Format("P{0}", (i + 1)), columns[i]);
                    cmdText.Append(param.ParameterName);
                    com.Parameters.Add(param);
                }
            }

            cmdText.Append(" WHERE PrimaryKey = ");
            string pName = GetParameterName("P0");
            cmdText.Append(pName);
            DbParameter keyParam = DbFactory.CreateParameter();
            keyParam.ParameterName = pName;
            keyParam.Value = GetRandomPK(rnd, table);
            com.Parameters.Add(keyParam);

            if (ShouldModifySession(rnd))
            {
                cmdText.Append(";").Append(GetRandomSessionModificationStatement(rnd));
            }

            com.CommandText = cmdText.ToString(); ;
            return com;
        }
Ejemplo n.º 27
0
        /// <summary>
        /// Utility function for tests
        /// </summary>
        /// <param name="rnd"></param>
        /// <param name="read"></param>
        /// <param name="poll"></param>
        /// <param name="handle"></param>
        /// <param name="xml"></param>
        private void TestSqlAsync(Random rnd, bool read, bool poll, bool handle, bool xml)
        {
            using (DataStressConnection conn = Factory.CreateConnection(rnd))
            {
                if (!OpenConnection(conn)) return;
                DataStressFactory.TableMetadata table = Factory.GetRandomTable(rnd);
                SqlCommand com = (SqlCommand)Factory.GetCommand(rnd, table, conn, read, xml);
                bool useBeginAPI = rnd.NextBool();

                IAsyncResult result = SqlCommandBeginExecute(com, read, xml, useBeginAPI);
                // Cancel 1/10 commands
                bool cancel = (rnd.Next(10) == 0);
                if (cancel)
                {
                    if (com.Connection.State != ConnectionState.Closed) com.Cancel();
                }

                if (result != null)
                    WaitForAsyncOpToComplete(rnd, result, poll, handle);
                // At random end query or forget it
                if (rnd.Next(2) == 0)
                    SqlCommandEndExecute(rnd, result, com, read, xml, cancel);

                // Randomly wait for the command to complete after closing the connection to verify devdiv bug 200550.
                // This was fixed for .NET 4.5 Task-based API, but not for the older Begin/End IAsyncResult API.
                conn.Close();
                if (!useBeginAPI && rnd.NextBool())
                    result.AsyncWaitHandle.WaitOne();
            }
        }
Ejemplo n.º 28
0
        /// <summary>
        /// Returns a random INSERT command
        /// </summary> 
        public DbCommand GetInsertCommand(Random rnd, TableMetadata table, DataStressConnection conn)
        {
            DbCommand com = CreateCommand(rnd, conn);

            StringBuilder cmdText = new StringBuilder();
            cmdText.Append("INSERT INTO \"");
            cmdText.Append(table.TableName);
            cmdText.Append("\" (");

            StringBuilder valuesText = new StringBuilder();
            valuesText.Append(") VALUES (");

            List<TableColumn> columns = table.Columns;
            int numColumns = rnd.Next(2, columns.Count);
            bool mostlyNull = rnd.NextBool(0.1); // 10% of rows have 90% chance of each column being null, in order to test nbcrow

            for (int i = 0; i < numColumns; i++)
            {
                if (columns[i].ColumnName.ToUpper() == "PRIMARYKEY") continue;

                if (i > 1)
                {
                    cmdText.Append(", ");
                    valuesText.Append(", ");
                }

                cmdText.Append(columns[i].ColumnName);

                if (columns[i].ColumnName.ToUpper() == "TIMESTAMP_FLD")
                {
                    valuesText.Append("DEFAULT"); // Cannot insert an explicit value in a timestamp field
                }
                else if (mostlyNull && rnd.NextBool(0.9))
                {
                    valuesText.Append("NULL");
                }
                else
                {
                    DbParameter param = CreateRandomParameter(rnd, string.Format("P{0}", i + 1), columns[i]);

                    valuesText.Append(param.ParameterName);
                    com.Parameters.Add(param);
                }
            }

            // To deal databases that do not support auto-incremented columns (Oracle?)
            // if (!columns["PrimaryKey"].AutoIncrement)
            if (PrimaryKeyValueIsRequired)
            {
                DbParameter param = CreateRandomParameter(rnd, "P0", table.GetColumn("PrimaryKey"));
                cmdText.Append(", PrimaryKey");
                valuesText.Append(", ");
                valuesText.Append(param.ParameterName);
                com.Parameters.Add(param);
            }

            valuesText.Append(")");
            cmdText.Append(valuesText);

            if (ShouldModifySession(rnd))
            {
                cmdText.Append(";").Append(GetRandomSessionModificationStatement(rnd));
            }

            com.CommandText = cmdText.ToString();
            return com;
        }
Ejemplo n.º 29
0
 private void CheckUnion(int capacity, Random r)
 {
     BitArray b1 = BitArray.Empty, b2 = BitArray.Empty;
     b1.EnsureCapacity(capacity);
     b2.EnsureCapacity(capacity);
     bool[] a1 = new bool[capacity], a2 = new bool[capacity];
     for (int i = 0; i < capacity; i++)
     {
         b1[i] = a1[i] = r.NextBool();
         b2[i] = a2[i] = r.NextBool();
     }
     b1.UnionWith(b2);
     for (int i = 0; i < capacity; i++)
     {
         a1[i] |= a2[i];
     }
     for (int i = 0; i < capacity; i++)
     {
         Assert.Equal(a1[i], b1[i]);
     }
 }
Ejemplo n.º 30
0
        /// <summary>
        /// Creates a new connection and initializes it with random connection string generated from the factory's source
        /// Note: if rnd is null, create a connection with minimal string required to connect to the target database        
        /// </summary>
        /// <param name="rnd">Randomizes Connection Pool enablement, the application Name to randomize connection pool</param>
        /// <param name="options"></param>
        /// <returns></returns>
        public DataStressConnection CreateConnection(Random rnd = null, ConnectionStringOptions options = ConnectionStringOptions.Default)
        {
            // Determine connection options (connection string, identity, etc)
            string connectionString = CreateBaseConnectionString(rnd, options);
            bool clearPoolBeforeClose = false;

            if (rnd != null)
            {
                // Connection string and/or identity are randomized

                // We implement this using the Application Name field in the connection string since this field
                // should not affect behaviour other than connection pooling, since all connections in a pool 
                // must have the exact same connection string (including Application Name)

                if (rnd.NextBool(.1))
                {
                    // Disable pooling
                    connectionString = connectionString + ";Pooling=false;";
                }
                else if (rnd.NextBool(0.001))
                {
                    // Use a unique Application Name to get a new connection from a new pool. We do this in order to 
                    // stress the code that creates/deletes pools.
                    connectionString = string.Format("{0}; Pooling=true; Application Name=\"{1}\";", connectionString, GetRandomApplicationName());

                    // Tell DataStressConnection to call SqlConnection.ClearPool when closing the connection. This ensures
                    // we do not keep a large number of connections in the pool that we will never use again.
                    clearPoolBeforeClose = true;
                }
                else
                {
                    switch (CurrentPoolingStressMode)
                    {
                        case PoolingStressMode.RandomizeConnectionStrings:
                            // Use one of the pre-generated Application Names in order to get a pooled connection with a randomized connection string
                            connectionString = string.Format("{0}; Pooling=true; Application Name=\"{1}\";", connectionString, _applicationNames[rnd.Next(_applicationNames.Count)]);
                            break;
                        default:
                            throw DataStressErrors.UnhandledCaseError(CurrentPoolingStressMode);
                    }
                }
            }

            // All options have been determined, now create
            DbConnection con = DbFactory.CreateConnection();
            con.ConnectionString = connectionString;
            return new DataStressConnection(con, clearPoolBeforeClose);
        }
Ejemplo n.º 31
0
        public void CheckIsTrue()
        {
            var r1 = new Random(seed);

            for (int capacity = 0; capacity < maxBits; capacity++)
            {
                BitVector b = BitVector.Create(capacity);
                for (int i = 0; i < capacity; i++)
                {
                    b[i] = r1.NextBool();
                }

                var index = 0;
                foreach (var word in b.Words())
                {
                    for (var i = 0; i < BitVector.BitsPerWord; i++)
                    {
                        if (index >= capacity)
                        {
                            break;
                        }

                        Assert.Equal(b[index], BitVector.IsTrue(word, index));

                        index++;
                    }
                }
            }
        }
Ejemplo n.º 32
0
        public void RandomTcpTest()
        {
            MacAddress ethernetSource = new MacAddress("00:01:02:03:04:05");
            MacAddress ethernetDestination = new MacAddress("A0:A1:A2:A3:A4:A5");

            EthernetLayer ethernetLayer = new EthernetLayer
                                              {
                                                  Source = ethernetSource,
                                                  Destination = ethernetDestination
                                              };

            int seed = new Random().Next();
            Console.WriteLine("Seed: " + seed);
            Random random = new Random(seed);

            for (int i = 0; i != 1000; ++i)
            {
                IpV4Layer ipV4Layer = random.NextIpV4Layer(null);
                ipV4Layer.HeaderChecksum = null;
                IpV6Layer ipV6Layer = random.NextIpV6Layer(IpV4Protocol.Tcp, false);

                EthernetType ethernetType = random.NextBool() ? EthernetType.IpV4 : EthernetType.IpV6;
                Layer ipLayer = (ethernetType == EthernetType.IpV4 ? (Layer)ipV4Layer : ipV6Layer);
                TcpLayer tcpLayer = random.NextTcpLayer();

                PayloadLayer payloadLayer = random.NextPayloadLayer(random.Next(60000));

                Packet packet = PacketBuilder.Build(DateTime.Now, ethernetLayer, ipLayer, tcpLayer, payloadLayer);

                Assert.IsTrue(packet.IsValid);

                // Ethernet
                ethernetLayer.EtherType = ethernetType;
                Assert.AreEqual(ethernetLayer, packet.Ethernet.ExtractLayer(), "Ethernet Layer");
                ethernetLayer.EtherType = EthernetType.None;

                // Ip.
                if (ipLayer == ipV4Layer)
                {
                    // IpV4.
                    ipV4Layer.Protocol = IpV4Protocol.Tcp;
                    ipV4Layer.HeaderChecksum = ((IpV4Layer)packet.Ethernet.IpV4.ExtractLayer()).HeaderChecksum;
                    Assert.AreEqual(ipV4Layer, packet.Ethernet.IpV4.ExtractLayer(), "IPv4 Layer");
                    ipV4Layer.HeaderChecksum = null;
                } 
                else
                {
                    Assert.AreEqual(ipV6Layer, packet.Ethernet.IpV6.ExtractLayer(), "IPv6 Layer");
                }

                // TCP
                tcpLayer.Checksum = packet.Ethernet.Ip.Tcp.Checksum;
                Assert.AreEqual(tcpLayer, packet.Ethernet.Ip.Tcp.ExtractLayer(), "TCP Layer");
                Assert.AreNotEqual(random.NextTcpLayer(), packet.Ethernet.Ip.Tcp.ExtractLayer(), "TCP Layer");
                Assert.AreEqual(tcpLayer.GetHashCode(), packet.Ethernet.Ip.Tcp.ExtractLayer().GetHashCode(), "TCP Layer");
                Assert.AreNotEqual(random.NextTcpLayer().GetHashCode(), packet.Ethernet.Ip.Tcp.ExtractLayer().GetHashCode(), "TCP Layer");
                Assert.AreEqual((uint)(packet.Ethernet.Ip.Tcp.SequenceNumber + packet.Ethernet.Ip.Tcp.PayloadLength), packet.Ethernet.Ip.Tcp.NextSequenceNumber);
                foreach (TcpOption option in packet.Ethernet.Ip.Tcp.Options.OptionsCollection)
                {
                    Assert.AreEqual(option, option);
                    Assert.AreEqual(option.GetHashCode(), option.GetHashCode());
                    Assert.IsFalse(string.IsNullOrEmpty(option.ToString()));
                    Assert.IsFalse(option.Equals(null));
                    Assert.IsFalse(option.Equals(2));
                }
                Assert.AreEqual(tcpLayer.Options, packet.Ethernet.Ip.Tcp.Options, "Options");
                Assert.AreEqual((tcpLayer.ControlBits & TcpControlBits.Acknowledgment) == TcpControlBits.Acknowledgment, packet.Ethernet.Ip.Tcp.IsAcknowledgment, "IsAcknowledgment");
                Assert.AreEqual((tcpLayer.ControlBits & TcpControlBits.CongestionWindowReduced) == TcpControlBits.CongestionWindowReduced, packet.Ethernet.Ip.Tcp.IsCongestionWindowReduced, "IsCongestionWindowReduced");
                Assert.AreEqual((tcpLayer.ControlBits & TcpControlBits.ExplicitCongestionNotificationEcho) == TcpControlBits.ExplicitCongestionNotificationEcho, packet.Ethernet.Ip.Tcp.IsExplicitCongestionNotificationEcho, "IsExplicitCongestionNotificationEcho");
                Assert.AreEqual((tcpLayer.ControlBits & TcpControlBits.Fin) == TcpControlBits.Fin, packet.Ethernet.Ip.Tcp.IsFin, "IsFin");
                Assert.AreEqual((tcpLayer.ControlBits & TcpControlBits.Push) == TcpControlBits.Push, packet.Ethernet.Ip.Tcp.IsPush, "IsPush");
                Assert.AreEqual((tcpLayer.ControlBits & TcpControlBits.Reset) == TcpControlBits.Reset, packet.Ethernet.Ip.Tcp.IsReset, "IsReset");
                Assert.AreEqual((tcpLayer.ControlBits & TcpControlBits.Synchronize) == TcpControlBits.Synchronize, packet.Ethernet.Ip.Tcp.IsSynchronize, "IsSynchronize");
                Assert.AreEqual((tcpLayer.ControlBits & TcpControlBits.Urgent) == TcpControlBits.Urgent, packet.Ethernet.Ip.Tcp.IsUrgent, "IsUrgent");
                Assert.AreEqual(0, packet.Ethernet.Ip.Tcp.Reserved);
                Assert.IsFalse(packet.Ethernet.Ip.Tcp.IsChecksumOptional, "IsChecksumOptional");
                Assert.AreEqual(TcpDatagram.HeaderMinimumLength + tcpLayer.Options.BytesLength + payloadLayer.Length, packet.Ethernet.Ip.Tcp.Length, "Total Length");
                Assert.IsTrue(packet.Ethernet.Ip.IsTransportChecksumCorrect, "IsTransportChecksumCorrect");

                Assert.AreEqual(payloadLayer.Data, packet.Ethernet.Ip.Tcp.Payload, "Payload");
            }
        }
Ejemplo n.º 33
0
        private static void CreateRandomIpV4Payload(Random random, IpV4Layer ipV4Layer, List<ILayer> layers)
        {
            if (random.NextBool(20))
            {
                // Finish with payload.
                PayloadLayer payloadLayer = random.NextPayloadLayer(random.Next(100));
                layers.Add(payloadLayer);
                return;
            }

            ipV4Layer.Protocol = null;
            if (random.NextBool())
                ipV4Layer.Fragmentation = IpV4Fragmentation.None;

            switch (random.Next(0, 9))
            {
                case 0: // IpV4.
                case 1:
                    IpV4Layer innerIpV4Layer = random.NextIpV4Layer();
                    layers.Add(innerIpV4Layer);
                    CreateRandomIpV4Payload(random, innerIpV4Layer, layers);
                    return;

                case 2: // Igmp.
                    layers.Add(random.NextIgmpLayer());
                    return;

                case 3: // Icmp.
                    IcmpLayer icmpLayer = random.NextIcmpLayer();
                    layers.Add(icmpLayer);
                    layers.AddRange(random.NextIcmpPayloadLayers(icmpLayer));
                    return;

                case 4: // Gre.
                    GreLayer greLayer = random.NextGreLayer();
                    layers.Add(greLayer);
                    CreateRandomEthernetPayload(random, greLayer, layers);
                    return;
                    
                case 5: // Udp.
                case 6:
                    UdpLayer udpLayer = random.NextUdpLayer();
                    layers.Add(udpLayer);
                    CreateRandomUdpPayload(random, udpLayer, layers);
                    return;

                case 7: // Tcp.
                case 8:
                    TcpLayer tcpLayer = random.NextTcpLayer();
                    layers.Add(tcpLayer);
                    CreateRandomTcpPayload(random, tcpLayer, layers);
                    return;

                default:
                    throw new InvalidOperationException("Invalid value.");
            }
        }
Ejemplo n.º 34
0
        private void CheckUnionCore(int capacity1, int capacity2, Random r)
        {
            BitVector b1 = BitVector.Empty, b2 = BitVector.Empty;
            b1.EnsureCapacity(capacity1);
            b2.EnsureCapacity(capacity2);

            var maxCapacity = Math.Max(capacity1, capacity2);
            bool[] a1 = new bool[maxCapacity],
                   a2 = new bool[maxCapacity];

            for (int i = 0; i < capacity1; i++)
            {
                b1[i] = a1[i] = r.NextBool();
            }

            for (int i = 0; i < capacity2; i++)
            {
                b2[i] = a2[i] = r.NextBool();
            }

            bool changed = b1.UnionWith(b2);
            bool changed2 = false;

            for (int i = 0; i < maxCapacity; i++)
            {
                bool a = a1[i];
                a1[i] |= a2[i];
                changed2 |= (a != a1[i]);
            }
            for (int i = 0; i < maxCapacity; i++)
            {
                Assert.Equal(a1[i], b1[i]);
            }
            Assert.Equal(changed2, changed);
        }
Ejemplo n.º 35
0
        private static void CreateRandomIpPayload(Random random, Layer ipLayer, List<ILayer> layers)
        {
            IpV6Layer ipV6Layer = ipLayer as IpV6Layer;
            if (ipV6Layer != null)
            {
                var headers = ipV6Layer.ExtensionHeaders.Headers;
                if (headers.Any() && headers.Last().Protocol == IpV4Protocol.EncapsulatingSecurityPayload)
                    return;
            }

            if (ipV6Layer != null ? ipV6Layer.LastNextHeader != null : random.NextBool(20))
            {
                // Finish with payload.
                PayloadLayer payloadLayer = random.NextPayloadLayer(random.Next(100));
                layers.Add(payloadLayer);
                return;
            }

            IpV4Layer ipV4Layer = ipLayer as IpV4Layer;
            if (ipV4Layer != null)
            {
                ipV4Layer.Protocol = null;
                if (random.NextBool())
                    ipV4Layer.Fragmentation = IpV4Fragmentation.None;
            }

            switch (random.Next(0, 11))
            {
                case 0: // IpV4.
                case 1:
                    IpV4Layer innerIpV4Layer = random.NextIpV4Layer();
                    layers.Add(innerIpV4Layer);
                    CreateRandomIpPayload(random, innerIpV4Layer, layers);
                    return;

                case 2: // IpV6.
                case 3:
                    IpV6Layer innerIpV6Layer = random.NextIpV6Layer(random.NextBool(20));
                    layers.Add(innerIpV6Layer);
                    CreateRandomIpPayload(random, innerIpV6Layer, layers);
                    return;

                case 4: // Igmp.
                    layers.Add(random.NextIgmpLayer());
                    return;

                case 5: // Icmp.
                    IcmpLayer icmpLayer = random.NextIcmpLayer();
                    layers.Add(icmpLayer);
                    layers.AddRange(random.NextIcmpPayloadLayers(icmpLayer));
                    return;

                case 6: // Gre.
                    GreLayer greLayer = random.NextGreLayer();
                    layers.Add(greLayer);
                    CreateRandomEthernetPayload(random, greLayer, layers);
                    return;
                    
                case 7: // Udp.
                case 8:
                    UdpLayer udpLayer = random.NextUdpLayer();
                    layers.Add(udpLayer);
                    CreateRandomUdpPayload(random, udpLayer, layers);
                    return;

                case 9: // Tcp.
                case 10:
                    TcpLayer tcpLayer = random.NextTcpLayer();
                    layers.Add(tcpLayer);
                    CreateRandomTcpPayload(random, tcpLayer, layers);
                    return;

                default:
                    throw new InvalidOperationException("Invalid value.");
            }
        }
Ejemplo n.º 36
0
        private void CheckTrueBitsCore(int capacity, Random r1, Random r2)
        {
            BitVector b = BitVector.Create(capacity);
            for (int i = 0; i < capacity; i++)
            {
                b[i] = r1.NextBool();
            }

            IEnumerable<int> i1 = b.TrueBits();
            IEnumerator<int> i2 = i1.GetEnumerator();
            for (int i = 0; i < capacity; i++)
            {
                if (r2.NextBool())
                {
                    Assert.True(i2.MoveNext());
                    Assert.Equal(i2.Current, i);
                }
            }

            Assert.False(i2.MoveNext());
            i2.Dispose();
        }
Ejemplo n.º 37
0
        public override string CreateBaseConnectionString(Random rnd, ConnectionStringOptions options)
        {
            SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder();

            switch (_scenario)
            {
                case SqlClientScenario.Sql:
                    builder.DataSource = _source.DataSource;
                    builder.InitialCatalog = _source.Database;
                    break;

                default:
                    throw new InvalidOperationException("missing case for " + _scenario);
            }

            // Randomize between Windows Authentication and SQL Authentication
            // Note that having 2 options here doubles the number of connection pools
            bool integratedSecurity = false;
            if (_source.SupportsWindowsAuthentication)
            {
                if (string.IsNullOrEmpty(_source.User)) // if sql login is not provided
                    integratedSecurity = true;
                else
                    integratedSecurity = (rnd != null) ? (rnd.Next(2) == 0) : true;
            }

            if (integratedSecurity)
            {
                builder.IntegratedSecurity = true;
            }
            else
            {
                builder.UserID = _source.User;
                builder.Password = _source.Password;
            }

            if (CurrentPoolingStressMode == PoolingStressMode.RandomizeConnectionStrings && rnd != null)
            {
                // Randomize connection string

                // Randomize packetsize
                // Note that having 2 options here doubles the number of connection pools
                if (rnd.NextBool())
                {
                    builder.PacketSize = 8192;
                }
                else
                {
                    builder.PacketSize = 512;
                }

                // If test case allows randomization and doesn't disallow MultiSubnetFailover, then enable MultiSubnetFailover 20% of the time
                // Note that having 2 options here doubles the number of connection pools

                if (!_source.DisableMultiSubnetFailoverSetup &&
                    !options.HasFlag(ConnectionStringOptions.DisableMultiSubnetFailover) &&
                    rnd != null &&
                    rnd.Next(5) == 0)
                {
                    string msfHostName;
                    if (integratedSecurity)
                    {
                        msfHostName = _multiSubnetSetupHelper.MultiSubnetFailoverHostNameForIntegratedSecurity;
                    }
                    else
                    {
                        msfHostName = _multiSubnetSetupHelper.GetMultiSubnetFailoverHostName(rnd);
                    }
                    string serverName;

                    // replace with build which has host name with multiple IP addresses
                    builder = NetUtils.GetMultiSubnetFailoverConnectionString(builder.ConnectionString, msfHostName, out serverName);
                }

                // Randomize between using Named Pipes and TCP providers
                // Note that having 2 options here doubles the number of connection pools
                if (rnd != null)
                {
                    if (rnd.Next(2) == 0)
                    {
                        builder.DataSource = "tcp:" + builder.DataSource;
                    }
                    else if (!_source.DisableNamedPipes)
                    {
                        // Named Pipes
                        if (builder.DataSource.Equals("(local)"))
                            builder.DataSource = "np:" + builder.DataSource;
                        else
                            builder.DataSource = @"np:\\" + builder.DataSource.Split(',')[0] + @"\pipe\sql\query";
                    }
                }

                // Set MARS if it is requested by the test case
                if (options.HasFlag(ConnectionStringOptions.EnableMars))
                {
                    builder.MultipleActiveResultSets = true;
                }

                // Disable connection resiliency, which is on by default, 20% of the time.
                if (rnd != null && rnd.NextBool(.2))
                {
                    builder.ConnectRetryCount = 0;
                }
            }
            else
            {
                // Minimal randomization of connection string

                // Enable MARS for all scenarios
                builder.MultipleActiveResultSets = true;
            }

            builder.MaxPoolSize = 1000;

            return builder.ToString();
        }
Ejemplo n.º 38
0
        private static void CreateRandomEthernetPayload(Random random, EthernetBaseLayer ethernetBaseLayer, List<ILayer> layers)
        {
            if (random.NextBool(20))
            {
                // Finish with payload.
                PayloadLayer payloadLayer = random.NextPayloadLayer(random.Next(100));
                layers.Add(payloadLayer);
                return;
            }

            ethernetBaseLayer.EtherType = EthernetType.None;
            switch (random.NextInt(0, 7))
            {
                case 0: // VLanTaggedFrame.
                case 1:
                    VLanTaggedFrameLayer vLanTaggedFrameLayer = random.NextVLanTaggedFrameLayer();
                    layers.Add(vLanTaggedFrameLayer);
                    CreateRandomEthernetPayload(random, vLanTaggedFrameLayer, layers);
                    return;

                case 2: // ARP.
                    EthernetLayer ethernetLayer = (ethernetBaseLayer as EthernetLayer);
                    if (ethernetLayer != null)
                        ethernetLayer.Destination = MacAddress.Zero;
                    layers.Add(random.NextArpLayer());
                    return;

                case 3: // IPv4.
                case 4:
                    IpV4Layer ipV4Layer = random.NextIpV4Layer();
                    layers.Add(ipV4Layer);
                    CreateRandomIpPayload(random, ipV4Layer, layers);
                    return;

                case 5: // IPv6
                case 6:
                    IpV6Layer ipV6Layer = random.NextIpV6Layer(random.NextBool(20));
                    layers.Add(ipV6Layer);
                    CreateRandomIpPayload(random, ipV6Layer, layers);
                    return;

                default:
                    throw new InvalidOperationException("Invalid value.");
            }
        }
Ejemplo n.º 39
0
    // This function is tasked with spawning items relative to already placed item
    // will return a list of spawned items so that SpawnItemsInRoom know what's left to spawn
    public static int SpawnRelatives(Spawnable spawned, Vector2 spawnedPos, Quaternion spawnedRot, Random rand,
                                     ref HashSet <GameObject> spawnedObjects, ref List <RoomType.SpawnListItem> availableItems,
                                     int min, int max, int currentRecusion = 0)
    {
        int spawnedOfSameCount = 0;

        if (currentRecusion < 2)
        {
            int spawnedIndex = availableItems.FindIndex(spawnableItem => spawnableItem.Spawnable == spawned);

            for (int i = 0; i < spawned.relativeSpawnList.Length; i++)
            {
                int relationIndex = availableItems.FindIndex(spawnableItem => spawnableItem.Spawnable == spawned.relativeSpawnList[i].Spawnable);
                if (relationIndex != -1 && spawnedIndex <= relationIndex)
                {
                    int spawnCount          = rand.NextInclusive(min, max);
                    int spawnedObjectsCount = 0;

                    // if the rotation is set (not random)
                    if (spawned.relativeSpawnList[i].AngleIteration != 0)
                    {
                        for (int j = 0; j < spawnCount && Math.Abs(j * spawned.relativeSpawnList[i].AngleIteration) < 360; j++)
                        {
                            Quaternion objectQuaternion = Quaternion.Euler(0, j * spawned.relativeSpawnList[i].AngleIteration + spawnedRot.eulerAngles.y, 0);
                            Vector3    spawnPosition    = new Vector3(spawnedPos.x, 0, spawnedPos.y);
                            Vector3    forward          = objectQuaternion * new Vector3(0, 0, 1);
                            if (TryResolvePositionPhysically(spawned.relativeSpawnList[i].Spawnable, ref spawnPosition, -forward, objectQuaternion))
                            {
                                spawnedObjects.Add(GameObject.Instantiate(spawned.relativeSpawnList[i].Spawnable.gameObject, spawnPosition, objectQuaternion));
                                SpawnRelatives(spawned.relativeSpawnList[i].Spawnable, new Vector2Int((int)spawnPosition.x, (int)spawnPosition.z), objectQuaternion, rand, ref spawnedObjects, ref availableItems, min, max, ++currentRecusion);
                            }

                            spawnedObjectsCount = j;
                        }

                        int newMin = ((min - spawnedObjectsCount) > 0) ? min - spawnedObjectsCount : 0;
                        int newMax = ((max - spawnedObjectsCount) > 0) ? max - spawnedObjectsCount : 0;

                        RoomType.SpawnListItem updatedItem = new RoomType.SpawnListItem(availableItems[relationIndex].AngleIteration, new Vector2Int(newMin, newMax), availableItems[relationIndex].Spawnable);
                        availableItems[relationIndex] = updatedItem;

                        if (spawnedIndex == relationIndex)
                        {
                            spawnedOfSameCount++;
                        }
                    }
                    else
                    {
                        for (int j = 0; j < spawnCount; j++)
                        {
                            Quaternion objectQuaternion = Quaternion.Euler(0, rand.NextInclusive(0, availableItems[relationIndex].Spawnable.angleMaxOffset), 0);
                            float      xPos             = spawnedPos.x + (rand.NextFloat() * (spawned.neededSpawnSpace.extents.x * 0.75f)) * (rand.NextBool() ? -1 : 1);
                            float      zPos             = spawnedPos.y + (rand.NextFloat() * (spawned.neededSpawnSpace.extents.z * 0.75f)) * (rand.NextBool() ? -1 : 1);
                            Vector3    spawnPosition    = new Vector3(xPos, 0, zPos);

                            if (TryResolvePositionPhysically(spawned.relativeSpawnList[i].Spawnable, ref spawnPosition, null, objectQuaternion))
                            {
                                spawnedObjects.Add(GameObject.Instantiate(spawned.relativeSpawnList[i].Spawnable.gameObject, spawnPosition, objectQuaternion));
                                SpawnRelatives(spawned.relativeSpawnList[i].Spawnable, new Vector2Int((int)spawnPosition.x, (int)spawnPosition.z), objectQuaternion, rand, ref spawnedObjects, ref availableItems, min, max, ++currentRecusion);
                            }

                            spawnedObjectsCount = j;
                        }

                        int newMin = ((min - spawnedObjectsCount) > 0) ? min - spawnedObjectsCount : 0;
                        int newMax = ((max - spawnedObjectsCount) > 0) ? max - spawnedObjectsCount : 0;

                        RoomType.SpawnListItem updatedItem = new RoomType.SpawnListItem(availableItems[relationIndex].AngleIteration, new Vector2Int(newMin, newMax), availableItems[relationIndex].Spawnable);
                        availableItems[relationIndex] = updatedItem;

                        if (spawnedIndex == relationIndex)
                        {
                            spawnedOfSameCount++;
                        }
                    }
                }
            }
        }

        return(spawnedOfSameCount);
    }