public void Roundtrip_NoOptions()
{
var a = new OPTRecord();
var b = (OPTRecord) new ResourceRecord().Read(a.ToByteArray());
Assert.AreEqual(a.Name, b.Name);
Assert.AreEqual(a.Class, b.Class);
Assert.AreEqual(a.Type, b.Type);
Assert.AreEqual(a.TTL, b.TTL);
}
byte[] BuildRequest(Message request)
{
// Always have a query ID.
if (request.Id == 0)
{
request.Id = this.NextQueryId();
}
// Add an OPT if not already present.
var opt = request.AdditionalRecords.OfType <OPTRecord>().FirstOrDefault();
if (opt == null)
{
opt = new OPTRecord();
request.AdditionalRecords.Add(opt);
}
// Keep the connection alive.
if (!opt.Options.Any(o => o.Type == EdnsOptionType.Keepalive))
{
var keepalive = new EdnsKeepaliveOption
{
Timeout = TimeSpan.FromMinutes(2)
};
opt.Options.Add(keepalive);
}
;
// Always use padding. Must be the last transform.
if (!opt.Options.Any(o => o.Type == EdnsOptionType.Padding))
{
var paddingOption = new EdnsPaddingOption();
opt.Options.Add(paddingOption);
var need = BlockLength - ((request.Length() + 2) % BlockLength);
if (need > 0)
{
paddingOption.Padding = new byte[need];
rng.NextBytes(paddingOption.Padding);
}
}
;
using (var tcpRequest = new MemoryStream())
{
tcpRequest.WriteByte(0); // two byte length prefix
tcpRequest.WriteByte(0);
request.Write(tcpRequest); // udpRequest
var length = (ushort)(tcpRequest.Length - 2);
tcpRequest.Position = 0;
tcpRequest.WriteByte((byte)(length >> 8));
tcpRequest.WriteByte((byte)(length));
return(tcpRequest.ToArray());
}
}
public void Defaults()
{
var opt = new OPTRecord();
Assert.AreEqual("", opt.Name);
Assert.AreEqual(1280, opt.RequestorPayloadSize);
Assert.AreEqual((ushort)opt.Class, opt.RequestorPayloadSize);
Assert.AreEqual(0, opt.Opcode8);
Assert.AreEqual(0, opt.Version);
Assert.AreEqual(false, opt.DO);
Assert.AreEqual(0, opt.Options.Count);
}
public void Equality()
{
var a = new OPTRecord
{
};
var b = new OPTRecord
{
RequestorPayloadSize = 512
};
Assert.IsTrue(a.Equals(a));
Assert.IsFalse(a.Equals(b));
Assert.IsFalse(a.Equals(null));
}
public void Roundtrip_Empty()
{
var opt1 = new OPTRecord();
var expected = new EdnsKeepaliveOption();
Assert.AreEqual(EdnsOptionType.Keepalive, expected.Type);
Assert.AreEqual(false, expected.Timeout.HasValue);
opt1.Options.Add(expected);
var opt2 = (OPTRecord) new ResourceRecord().Read(opt1.ToByteArray());
var actual = (EdnsKeepaliveOption)opt2.Options[0];
Assert.AreEqual(expected.Type, actual.Type);
Assert.AreEqual(expected.Timeout.HasValue, actual.Timeout.HasValue);
}
public void Roundtrip()
{
var opt1 = new OPTRecord();
var expected = new EdnsNSIDOption
{
Id = new byte[] { 1, 2, 3, 4 }
};
Assert.AreEqual(EdnsOptionType.NSID, expected.Type);
opt1.Options.Add(expected);
var opt2 = (OPTRecord) new ResourceRecord().Read(opt1.ToByteArray());
var actual = (EdnsNSIDOption)opt2.Options[0];
Assert.AreEqual(expected.Type, actual.Type);
CollectionAssert.AreEqual(expected.Id, actual.Id);
}
public void Roundtrip()
{
var opt1 = new OPTRecord();
var expected = new EdnsDAUOption
{
Algorithms = { SecurityAlgorithm.ED25519, SecurityAlgorithm.ECCGOST }
};
Assert.AreEqual(EdnsOptionType.DAU, expected.Type);
opt1.Options.Add(expected);
var opt2 = (OPTRecord) new ResourceRecord().Read(opt1.ToByteArray());
var actual = (EdnsDAUOption)opt2.Options[0];
Assert.AreEqual(expected.Type, actual.Type);
CollectionAssert.AreEqual(expected.Algorithms, actual.Algorithms);
}
public void Roundtrip()
{
var opt1 = new OPTRecord();
var expected = new EdnsN3UOption
{
Algorithms = { DigestType.GostR34_11_94, DigestType.Sha512 }
};
Assert.AreEqual(EdnsOptionType.N3U, expected.Type);
opt1.Options.Add(expected);
var opt2 = (OPTRecord) new ResourceRecord().Read(opt1.ToByteArray());
var actual = (EdnsN3UOption)opt2.Options[0];
Assert.AreEqual(expected.Type, actual.Type);
CollectionAssert.AreEqual(expected.Algorithms, actual.Algorithms);
}
public void Roundtrip()
{
var opt1 = new OPTRecord();
var expected = new EdnsKeepaliveOption
{
Timeout = TimeSpan.FromSeconds(3)
};
Assert.AreEqual(EdnsOptionType.Keepalive, expected.Type);
opt1.Options.Add(expected);
var opt2 = (OPTRecord) new ResourceRecord().Read(opt1.ToByteArray());
var actual = (EdnsKeepaliveOption)opt2.Options[0];
Assert.AreEqual(expected.Type, actual.Type);
Assert.AreEqual(expected.Timeout.Value, actual.Timeout.Value);
}
public void Roundtrip()
{
var opt1 = new OPTRecord();
var expected = new UnknownEdnsOption
{
Type = EdnsOptionType.ExperimentalMin,
Data = new byte[] { 10, 11, 12 }
};
opt1.Options.Add(expected);
var opt2 = (OPTRecord) new ResourceRecord().Read(opt1.ToByteArray());
var actual = (UnknownEdnsOption)opt2.Options[0];
Assert.AreEqual(expected.Type, actual.Type);
CollectionAssert.AreEqual(expected.Data, actual.Data);
}
public void Roundtrip()
{
var opt1 = new OPTRecord();
var expected = new EdnsPaddingOption
{
Padding = new byte[] { 0, 0, 0 }
};
Assert.AreEqual(EdnsOptionType.Padding, expected.Type);
opt1.Options.Add(expected);
var opt2 = (OPTRecord) new ResourceRecord().Read(opt1.ToByteArray());
var actual = (EdnsPaddingOption)opt2.Options[0];
Assert.AreEqual(expected.Type, actual.Type);
CollectionAssert.AreEqual(expected.Padding, actual.Padding);
}
public void Roundtrip()
{
var a = new OPTRecord
{
RequestorPayloadSize = 512,
Opcode8 = 2,
Version = 3,
DO = true
};
var b = (OPTRecord) new ResourceRecord().Read(a.ToByteArray());
Assert.AreEqual(a.Name, b.Name);
Assert.AreEqual(a.Class, b.Class);
Assert.AreEqual(a.Type, b.Type);
Assert.AreEqual(a.TTL, b.TTL);
Assert.AreEqual(a.RequestorPayloadSize, b.RequestorPayloadSize);
Assert.AreEqual(a.Opcode8, b.Opcode8);
Assert.AreEqual(a.Version, b.Version);
Assert.AreEqual(a.DO, b.DO);
}