public void BufferOverflow_Bytes() { var ms = new MemoryStream(new byte[] { 1, 2 }); var reader = new WireReader(ms); ExceptionAssert.Throws <EndOfStreamException>(() => reader.ReadBytes(3)); }
public void Bitmap() { // From https://tools.ietf.org/html/rfc3845#section-2.3 var wire = new byte[] { 0x00, 0x06, 0x40, 0x01, 0x00, 0x00, 0x00, 0x03, 0x04, 0x1b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20 }; var ms = new MemoryStream(wire, false); var reader = new WireReader(ms); var first = new ushort[] { 1, 15, 46, 47 }; var second = new ushort[] { 1234 }; CollectionAssert.AreEqual(first, reader.ReadBitmap()); CollectionAssert.AreEqual(second, reader.ReadBitmap()); ms = new MemoryStream(); var writer = new WireWriter(ms); writer.WriteBitmap(new ushort[] { 1, 15, 46, 47, 1234 }); CollectionAssert.AreEqual(wire, ms.ToArray()); }
/// <inheritdoc /> public override void ReadData(WireReader reader, int length) { Priority = reader.ReadUInt16(); Weight = reader.ReadUInt16(); Port = reader.ReadUInt16(); Target = reader.ReadDomainName(); }
/// <inheritdoc /> public override IWireSerialiser Read(WireReader reader) { // Read standard properties of a resource record. Name = reader.ReadDomainName(); Type = (DnsType)reader.ReadUInt16(); Class = (DnsClass)reader.ReadUInt16(); TTL = reader.ReadTimeSpan32(); int length = reader.ReadUInt16(); // Find a specific class for the TYPE or default // to UnknownRecord. var specific = ResourceRegistry.Create(Type); specific.Name = Name; specific.Type = Type; specific.Class = Class; specific.TTL = TTL; // Read the specific properties of the resource record. var end = reader.Position + length; specific.ReadData(reader, length); if (reader.Position != end) { throw new InvalidDataException("Found extra data while decoding RDATA."); } return(specific); }
public void BufferOverflow_DomainName() { var ms = new MemoryStream(new byte[] { 1, (byte)'a' }); var reader = new WireReader(ms); ExceptionAssert.Throws <EndOfStreamException>(() => reader.ReadDomainName()); }
public void ReadString_NotAscii() { var ms = new MemoryStream(new byte[] { 1, 0xFF }); var reader = new WireReader(ms); reader.ReadString(); }
/// <inheritdoc /> public override IWireSerialiser Read(WireReader reader) { Name = reader.ReadDomainName(); Type = (DnsType)reader.ReadUInt16(); Class = (DnsClass)reader.ReadUInt16(); return(this); }
/// <inheritdoc /> public override void ReadData(WireReader reader, int length) { Algorithms.Clear(); for (; length > 0; --length) { Algorithms.Add((SecurityAlgorithm)reader.ReadByte()); } }
public void ReadDateTime48() { // From https://tools.ietf.org/html/rfc2845 section 3.3 var expected = new DateTime(1997, 1, 21, 0, 0, 0, DateTimeKind.Utc); var ms = new MemoryStream(new byte[] { 0x00, 0x00, 0x32, 0xe4, 0x07, 0x00 }); var reader = new WireReader(ms); Assert.AreEqual(expected, reader.ReadDateTime48()); }
/// <inheritdoc /> public override void ReadData(WireReader reader, int length) { var end = reader.Position + length; HashAlgorithm = (DigestType)reader.ReadByte(); Flags = reader.ReadByte(); Iterations = reader.ReadUInt16(); Salt = reader.ReadByteLengthPrefixedBytes(); }
/// <inheritdoc /> public override void ReadData(WireReader reader, int length) { var end = reader.Position + length; KeyTag = reader.ReadUInt16(); Algorithm = (SecurityAlgorithm)reader.ReadByte(); HashAlgorithm = (DigestType)reader.ReadByte(); Digest = reader.ReadBytes(end - reader.Position); }
/// <inheritdoc /> public override void ReadData(WireReader reader, int length) { var end = reader.Position + length; Flags = (DNSKEYFlags)reader.ReadUInt16(); Protocol = reader.ReadByte(); Algorithm = (SecurityAlgorithm)reader.ReadByte(); PublicKey = reader.ReadBytes(end - reader.Position); }
/// <inheritdoc /> public override void ReadData(WireReader reader, int length) { while (length > 0) { var s = reader.ReadString(); Strings.Add(s); length -= Encoding.UTF8.GetByteCount(s) + 1; } }
/// <inheritdoc /> public override void ReadData(WireReader reader, int length) { var end = reader.Position + length; NextOwnerName = reader.ReadDomainName(); while (reader.Position < end) { Types.AddRange(reader.ReadBitmap().Select(t => (DnsType)t)); } }
/// <inheritdoc /> public override void ReadData(WireReader reader, int length) { PrimaryName = reader.ReadDomainName(); Mailbox = reader.ReadDomainName(); SerialNumber = reader.ReadUInt32(); Refresh = reader.ReadTimeSpan32(); Retry = reader.ReadTimeSpan32(); Expire = reader.ReadTimeSpan32(); Minimum = reader.ReadTimeSpan32(); }
/// <inheritdoc /> public override void ReadData(WireReader reader, int length) { Algorithm = reader.ReadDomainName(); Inception = reader.ReadDateTime32(); Expiration = reader.ReadDateTime32(); Mode = (KeyExchangeMode)reader.ReadUInt16(); Error = (MessageStatus)reader.ReadUInt16(); Key = reader.ReadUInt16LengthPrefixedBytes(); OtherData = reader.ReadUInt16LengthPrefixedBytes(); }
/// <inheritdoc /> public override void ReadData(WireReader reader, int length) { Algorithm = reader.ReadDomainName(); TimeSigned = reader.ReadDateTime48(); Fudge = reader.ReadTimeSpan16(); MAC = reader.ReadUInt16LengthPrefixedBytes(); OriginalMessageId = reader.ReadUInt16(); Error = (MessageStatus)reader.ReadUInt16(); OtherData = reader.ReadUInt16LengthPrefixedBytes(); }
public void NullDomainName_Class() { var ms = new MemoryStream(); var writer = new WireWriter(ms); writer.WriteDomainName((DomainName)null); writer.WriteString("abc"); ms.Position = 0; var reader = new WireReader(ms); Assert.AreEqual("", reader.ReadDomainName()); Assert.AreEqual("abc", reader.ReadString()); }
public void Read_EscapedDotDomainName() { var domainName = @"a\.b"; var ms = new MemoryStream(); var writer = new WireWriter(ms); writer.WriteDomainName(domainName); ms.Position = 0; var reader = new WireReader(ms); var name = reader.ReadDomainName(); Assert.AreEqual(domainName, name); }
/// <inheritdoc /> public override void ReadData(WireReader reader, int length) { var end = reader.Position + length; TypeCovered = (DnsType)reader.ReadUInt16(); Algorithm = (SecurityAlgorithm)reader.ReadByte(); Labels = reader.ReadByte(); OriginalTTL = reader.ReadTimeSpan32(); SignatureExpiration = reader.ReadDateTime32(); SignatureInception = reader.ReadDateTime32(); KeyTag = reader.ReadUInt16(); SignerName = reader.ReadDomainName(); Signature = reader.ReadBytes(end - reader.Position); }
/// <inheritdoc /> public override void ReadData(WireReader reader, int length) { var end = reader.Position + length; HashAlgorithm = (DigestType)reader.ReadByte(); Flags = (NSEC3Flags)reader.ReadByte(); Iterations = reader.ReadUInt16(); Salt = reader.ReadByteLengthPrefixedBytes(); NextHashedOwnerName = reader.ReadByteLengthPrefixedBytes(); while (reader.Position < end) { Types.AddRange(reader.ReadBitmap().Select(t => (DnsType)t)); } }
public void Reading() { var bytes = new byte[] { 0x01, (byte)'a', 0, 0x01, (byte)'b', 0, 0XC0, 3 }; var ms = new MemoryStream(bytes); var reader = new WireReader(ms); Assert.AreEqual("a", reader.ReadDomainName()); Assert.AreEqual("b", reader.ReadDomainName()); Assert.AreEqual("b", reader.ReadDomainName()); }
/// <inheritdoc /> public override void ReadData(WireReader reader, int length) { switch (length) { case 0: Timeout = null; break; case 2: Timeout = TimeSpan.FromMilliseconds((int)reader.ReadUInt16() * 100); break; default: throw new InvalidDataException($"Invalid EdnsKeepAlive length of '{length}'."); } }
public void Writing_Past_MaxPointer() { var ms = new MemoryStream(); var writer = new WireWriter(ms); writer.WriteBytes(new byte[0x4000]); writer.WriteDomainName("a"); writer.WriteDomainName("b"); writer.WriteDomainName("b"); ms.Position = 0; var reader = new WireReader(ms); reader.ReadBytes(0x4000); Assert.AreEqual("a", reader.ReadDomainName()); Assert.AreEqual("b", reader.ReadDomainName()); Assert.AreEqual("b", reader.ReadDomainName()); }
public void CanonicalDomainName() { var ms = new MemoryStream(); var writer = new WireWriter(ms) { CanonicalForm = true }; writer.WriteDomainName("FOO"); writer.WriteDomainName("FOO"); Assert.AreEqual(5 * 2, writer.Position); ms.Position = 0; var reader = new WireReader(ms); Assert.AreEqual("foo", reader.ReadDomainName()); Assert.AreEqual("foo", reader.ReadDomainName()); }
/// <inheritdoc /> public override IWireSerialiser Read(WireReader reader) { Id = reader.ReadUInt16(); var flags = reader.ReadUInt16(); QR = (flags & 0x8000) == 0x8000; AA = (flags & 0x0400) == 0x0400; TC = (flags & 0x0200) == 0x0200; RD = (flags & 0x0100) == 0x0100; RA = (flags & 0x0080) == 0x0080; opcode4 = (byte)((flags & 0x7800) >> 11); Z = (flags & 0x0040) >> 6; AD = (flags & 0x0020) == 0x0020; CD = (flags & 0x0010) == 0x0010; Status = (MessageStatus)(flags & 0x000F); var qdcount = reader.ReadUInt16(); var ancount = reader.ReadUInt16(); var nscount = reader.ReadUInt16(); var arcount = reader.ReadUInt16(); for (var i = 0; i < qdcount; ++i) { var question = (Question) new Question().Read(reader); Questions.Add(question); } for (var i = 0; i < ancount; ++i) { var rr = (ResourceRecord) new ResourceRecord().Read(reader); Answers.Add(rr); } for (var i = 0; i < nscount; ++i) { var rr = (ResourceRecord) new ResourceRecord().Read(reader); AuthorityRecords.Add(rr); } for (var i = 0; i < arcount; ++i) { var rr = (ResourceRecord) new ResourceRecord().Read(reader); AdditionalRecords.Add(rr); } return(this); }
public void Reading_Labels() { var bytes = new byte[] { 0x01, (byte)'a', 0x01, (byte)'b', 0x01, (byte)'c', 00, 0xC0, 0x00, 0xC0, 0x02, 0xC0, 0x04, 0x01, (byte)'x', 0xC0, 0x02, }; var ms = new MemoryStream(bytes); var reader = new WireReader(ms); Assert.AreEqual("a.b.c", reader.ReadDomainName()); Assert.AreEqual("a.b.c", reader.ReadDomainName()); Assert.AreEqual("b.c", reader.ReadDomainName()); Assert.AreEqual("c", reader.ReadDomainName()); Assert.AreEqual("x.b.c", reader.ReadDomainName()); }
public void LengthPrefixedScope() { var ms = new MemoryStream(); var writer = new WireWriter(ms); writer.WriteString("abc"); writer.PushLengthPrefixedScope(); writer.WriteDomainName("a"); writer.WriteDomainName("a"); writer.PopLengthPrefixedScope(); ms.Position = 0; var reader = new WireReader(ms); Assert.AreEqual("abc", reader.ReadString()); Assert.AreEqual(5, reader.ReadUInt16()); Assert.AreEqual("a", reader.ReadDomainName()); Assert.AreEqual("a", reader.ReadDomainName()); }
public void Roundtrip() { var someBytes = new byte[] { 1, 2, 3 }; var someDate = new DateTime(1997, 1, 21, 3, 4, 5, DateTimeKind.Utc); var ms = new MemoryStream(); var writer = new WireWriter(ms); writer.WriteDomainName("emanon.org"); writer.WriteString("alpha"); writer.WriteTimeSpan32(TimeSpan.FromHours(3)); writer.WriteUInt16(ushort.MaxValue); writer.WriteUInt32(uint.MaxValue); writer.WriteUInt48(0XFFFFFFFFFFFFul); writer.WriteBytes(someBytes); writer.WriteByteLengthPrefixedBytes(someBytes); writer.WriteByteLengthPrefixedBytes(null); writer.WriteIPAddress(IPAddress.Parse("127.0.0.1")); writer.WriteIPAddress(IPAddress.Parse("2406:e001:13c7:1:7173:ef8:852f:25cb")); writer.WriteDateTime32(someDate); writer.WriteDateTime48(someDate); ms.Position = 0; var reader = new WireReader(ms); Assert.AreEqual("emanon.org", reader.ReadDomainName()); Assert.AreEqual("alpha", reader.ReadString()); Assert.AreEqual(TimeSpan.FromHours(3), reader.ReadTimeSpan32()); Assert.AreEqual(ushort.MaxValue, reader.ReadUInt16()); Assert.AreEqual(uint.MaxValue, reader.ReadUInt32()); Assert.AreEqual(0XFFFFFFFFFFFFul, reader.ReadUInt48()); CollectionAssert.AreEqual(someBytes, reader.ReadBytes(3)); CollectionAssert.AreEqual(someBytes, reader.ReadByteLengthPrefixedBytes()); CollectionAssert.AreEqual(new byte[0], reader.ReadByteLengthPrefixedBytes()); Assert.AreEqual(IPAddress.Parse("127.0.0.1"), reader.ReadIPAddress()); Assert.AreEqual(IPAddress.Parse("2406:e001:13c7:1:7173:ef8:852f:25cb"), reader.ReadIPAddress(16)); Assert.AreEqual(someDate, reader.ReadDateTime32()); Assert.AreEqual(someDate, reader.ReadDateTime48()); }
/// <inheritdoc /> public override IWireSerialiser Read(WireReader reader) { Id = reader.ReadUInt16(); var flags = reader.ReadUInt16(); QR = (flags & 0x8000) == 0x8000; Opcode = (MessageOperation)((flags & 0x7800) >> 11); Z = (flags & 0x07F0) >> 4; Status = (MessageStatus)(flags & 0x000F); var zocount = reader.ReadUInt16(); var prcount = reader.ReadUInt16(); var upcount = reader.ReadUInt16(); var arcount = reader.ReadUInt16(); for (var i = 0; i < zocount; ++i) { Zone = (Question) new Question().Read(reader); } for (var i = 0; i < prcount; ++i) { var rr = (ResourceRecord) new ResourceRecord().Read(reader); Prerequisites.Add(rr); } for (var i = 0; i < upcount; ++i) { var rr = (ResourceRecord) new ResourceRecord().Read(reader); Updates.Add(rr); } for (var i = 0; i < arcount; ++i) { var rr = (ResourceRecord) new ResourceRecord().Read(reader); AdditionalResources.Add(rr); } return(this); }