protected internal override void EncodeRecordData(byte[] messageData, int offset, ref int currentPosition, Dictionary <string, ushort> domainNames)
{
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, (ushort)Type);
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, KeyTag);
messageData[currentPosition++] = (byte)Algorithm;
DnsMessageBase.EncodeByteArray(messageData, ref currentPosition, Certificate);
}
protected internal override void EncodeRecordData(byte[] messageData, int offset, ref int currentPosition, Dictionary <string, ushort> domainNames)
{
foreach (AddressPrefix addressPrefix in Prefixes)
{
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, (ushort)addressPrefix.AddressFamily);
messageData[currentPosition++] = addressPrefix.Prefix;
// no increment of position pointer, just set 1 bit
if (addressPrefix.IsNegated)
{
messageData[currentPosition] = 128;
}
byte[] addressData = addressPrefix.Address.GetNetworkAddress(addressPrefix.Prefix).GetAddressBytes();
int length = addressData.Length;
for (; length > 0; length--)
{
if (addressData[length - 1] != 0)
{
break;
}
}
messageData[currentPosition++] |= (byte)length;
DnsMessageBase.EncodeByteArray(messageData, ref currentPosition, addressData, length);
}
}
protected internal override void EncodeRecordData(byte[] messageData, int offset, ref int currentPosition, Dictionary <string, ushort> domainNames)
{
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, Flags);
messageData[currentPosition++] = Protocol;
messageData[currentPosition++] = (byte)Algorithm;
DnsMessageBase.EncodeByteArray(messageData, ref currentPosition, PublicKey);
}
protected internal override void EncodeRecordData(byte[] messageData, int offset, ref int currentPosition, Dictionary <string, ushort> domainNames)
{
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, Priority);
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, Weight);
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, Port);
DnsMessageBase.EncodeDomainName(messageData, offset, ref currentPosition, Target, false, domainNames);
}
protected internal override void EncodeRecordData(byte[] messageData, int offset, ref int currentPosition, Dictionary <string, ushort> domainNames)
{
messageData[currentPosition++] = (byte)HashAlgorithm;
messageData[currentPosition++] = Flags;
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, Iterations);
messageData[currentPosition++] = (byte)Salt.Length;
DnsMessageBase.EncodeByteArray(messageData, ref currentPosition, Salt);
}
internal override void EncodeData(byte[] messageData, ref int currentPosition)
{
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, Version);
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, (ushort)OperationCode);
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, (ushort)ErrorCode);
DnsMessageBase.EncodeULong(messageData, ref currentPosition, Id);
DnsMessageBase.EncodeUInt(messageData, ref currentPosition, (uint)LeaseTime.TotalSeconds);
}
internal override void EncodeData(byte[] messageData, ref int currentPosition)
{
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, (ushort)(Family == AddressFamily.InterNetwork ? 1 : 2));
messageData[currentPosition++] = SourceNetmask;
messageData[currentPosition++] = ScopeNetmask;
byte[] data = Address.GetAddressBytes();
DnsMessageBase.EncodeByteArray(messageData, ref currentPosition, data, GetAddressLength());
}
internal void EncodeRecordHeader(byte[] messageData, int offset, ref int currentPosition, Dictionary <string, ushort> domainNames, out int recordPosition)
{
DnsMessageBase.EncodeDomainName(messageData, offset, ref currentPosition, Name, true, domainNames);
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, (ushort)RecordType);
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, (ushort)RecordClass);
DnsMessageBase.EncodeInt(messageData, ref currentPosition, TimeToLive);
recordPosition = currentPosition + 2;
}
protected override void EncodePublicKey(byte[] messageData, int offset, ref int currentPosition, Dictionary <string, ushort> domainNames)
{
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, (ushort)Prime.Length);
DnsMessageBase.EncodeByteArray(messageData, ref currentPosition, Prime);
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, (ushort)Generator.Length);
DnsMessageBase.EncodeByteArray(messageData, ref currentPosition, Generator);
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, (ushort)PublicValue.Length);
DnsMessageBase.EncodeByteArray(messageData, ref currentPosition, PublicValue);
}
protected internal override void EncodeRecordData(byte[] messageData, int offset, ref int currentPosition, Dictionary <string, ushort> domainNames)
{
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, Order);
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, Preference);
DnsMessageBase.EncodeTextBlock(messageData, ref currentPosition, Flags);
DnsMessageBase.EncodeTextBlock(messageData, ref currentPosition, Services);
DnsMessageBase.EncodeTextBlock(messageData, ref currentPosition, RegExp);
DnsMessageBase.EncodeDomainName(messageData, offset, ref currentPosition, Replacement, false, domainNames);
}
private byte[] QueryByTcp(IPAddress nameServer, byte[] messageData, int messageLength, ref TcpClient tcpClient, ref NetworkStream tcpStream, out IPAddress responderAddress)
{
responderAddress = nameServer;
IPEndPoint endPoint = new IPEndPoint(nameServer, _port);
try
{
if (tcpClient == null)
{
tcpClient = new TcpClient(nameServer.AddressFamily)
{
ReceiveTimeout = QueryTimeout,
SendTimeout = QueryTimeout
};
tcpClient.Connect(endPoint);
tcpStream = tcpClient.GetStream();
}
int tmp = 0;
byte[] lengthBuffer = new byte[2];
if (messageLength > 0)
{
DnsMessageBase.EncodeUShort(lengthBuffer, ref tmp, (ushort)messageLength);
tcpStream.Write(lengthBuffer, 0, 2);
tcpStream.Write(messageData, 0, messageLength);
}
lengthBuffer[0] = (byte)tcpStream.ReadByte();
lengthBuffer[1] = (byte)tcpStream.ReadByte();
tmp = 0;
int length = DnsMessageBase.ParseUShort(lengthBuffer, ref tmp);
byte[] resultData = new byte[length];
int readBytes = 0;
while (readBytes < length)
{
readBytes += tcpStream.Read(resultData, readBytes, length - readBytes);
}
return(resultData);
}
catch (Exception e)
{
Trace.TraceError("Error on dns query: " + e);
return(null);
}
}
private void EncodeRecordData(byte[] messageData, int offset, ref int currentPosition, Dictionary <string, ushort> domainNames, byte[] mac)
{
DnsMessageBase.EncodeDomainName(messageData, offset, ref currentPosition, TSigAlgorithmHelper.GetDomainName(Algorithm), false, domainNames);
EncodeDateTime(messageData, ref currentPosition, TimeSigned);
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, (ushort)Fudge.TotalSeconds);
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, (ushort)mac.Length);
DnsMessageBase.EncodeByteArray(messageData, ref currentPosition, mac);
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, OriginalID);
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, (ushort)Error);
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, (ushort)OtherData.Length);
DnsMessageBase.EncodeByteArray(messageData, ref currentPosition, OtherData);
}
protected internal override void EncodeRecordData(byte[] messageData, int offset, ref int currentPosition, Dictionary <string, ushort> domainNames)
{
if ((Options != null) && (Options.Count != 0))
{
foreach (EDnsOptionBase option in Options)
{
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, (ushort)option.Type);
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, option.DataLength);
option.EncodeData(messageData, ref currentPosition);
}
}
}
protected internal override void EncodeRecordData(byte[] messageData, int offset, ref int currentPosition, Dictionary <string, ushort> domainNames)
{
DnsMessageBase.EncodeDomainName(messageData, offset, ref currentPosition, TSigAlgorithmHelper.GetDomainName(Algorithm), false, domainNames);
EncodeDateTime(messageData, ref currentPosition, Inception);
EncodeDateTime(messageData, ref currentPosition, Expiration);
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, (ushort)Mode);
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, (ushort)Error);
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, (ushort)Key.Length);
DnsMessageBase.EncodeByteArray(messageData, ref currentPosition, Key);
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, (ushort)OtherData.Length);
DnsMessageBase.EncodeByteArray(messageData, ref currentPosition, OtherData);
}
protected internal override void EncodeRecordData(byte[] messageData, int offset, ref int currentPosition, Dictionary <string, ushort> domainNames)
{
messageData[currentPosition++] = (byte)Hit.Length;
messageData[currentPosition++] = (byte)Algorithm;
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, (ushort)PublicKey.Length);
DnsMessageBase.EncodeByteArray(messageData, ref currentPosition, Hit);
DnsMessageBase.EncodeByteArray(messageData, ref currentPosition, PublicKey);
foreach (string server in RendezvousServers)
{
DnsMessageBase.EncodeDomainName(messageData, offset, ref currentPosition, server, false, domainNames);
}
}
protected internal override void EncodeRecordData(byte[] messageData, int offset, ref int currentPosition, Dictionary <string, ushort> domainNames)
{
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, (ushort)TypeCovered);
messageData[currentPosition++] = (byte)Algorithm;
messageData[currentPosition++] = Labels;
DnsMessageBase.EncodeInt(messageData, ref currentPosition, OriginalTimeToLive);
EncodeDateTime(messageData, ref currentPosition, SignatureExpiration);
EncodeDateTime(messageData, ref currentPosition, SignatureInception);
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, KeyTag);
DnsMessageBase.EncodeDomainName(messageData, offset, ref currentPosition, SignersName, false, null);
DnsMessageBase.EncodeByteArray(messageData, ref currentPosition, Signature);
}
private void TcpConnectCompleted <TMessage>(IAsyncResult ar)
where TMessage : DnsMessageBase, new()
{
DnsClientAsyncState <TMessage> state = (DnsClientAsyncState <TMessage>)ar.AsyncState;
if (state.Timer != null)
{
state.Timer.Dispose();
}
if (state.TimedOut)
{
state.EndpointInfoIndex++;
TcpBeginConnect(state);
}
else
{
try
{
state.TcpClient.EndConnect(ar);
state.TcpStream = state.TcpClient.GetStream();
int tmp = 0;
state.Buffer = new byte[2];
DnsMessageBase.EncodeUShort(state.Buffer, ref tmp, (ushort)state.QueryLength);
IAsyncResult asyncResult = state.TcpStream.BeginWrite(state.Buffer, 0, 2, TcpSendLengthCompleted <TMessage>, state);
state.Timer = new Timer(TcpTimedOut <TMessage>, asyncResult, state.TimeRemaining, Timeout.Infinite);
}
catch (Exception e)
{
Trace.TraceError("Error on dns query: " + e);
try
{
state.TcpClient.Close();
state.Timer.Dispose();
}
catch {}
state.EndpointInfoIndex++;
TcpBeginConnect(state);
}
}
}
internal void Encode(byte[] messageData, int offset, ref int currentPosition, Dictionary <string, ushort> domainNames, bool useCompressionMutation)
{
DnsMessageBase.EncodeDomainName(messageData, offset, ref currentPosition, Name, true, useCompressionMutation, domainNames);
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, (ushort)RecordType);
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, (ushort)RecordClass);
}
internal void EncodeRecordLength(byte[] messageData, int offset, ref int recordDataOffset, Dictionary <string, ushort> domainNames, int recordPosition)
{
DnsMessageBase.EncodeUShort(messageData, ref recordDataOffset, (ushort)(recordPosition - recordDataOffset - 2));
recordDataOffset = recordPosition;
}
protected internal override void EncodeRecordData(byte[] messageData, int offset, ref int currentPosition, Dictionary <string, ushort> domainNames)
{
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, (ushort)SubType);
DnsMessageBase.EncodeDomainName(messageData, offset, ref currentPosition, Hostname, false, domainNames);
}
protected internal override void EncodeRecordData(byte[] messageData, int offset, ref int currentPosition, Dictionary <string, ushort> domainNames)
{
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, Preference);
DnsMessageBase.EncodeULong(messageData, ref currentPosition, Locator64);
}
protected internal override void EncodeRecordData(byte[] messageData, int offset, ref int currentPosition, Dictionary <string, ushort> domainNames)
{
DnsMessageBase.EncodeUShort(messageData, ref currentPosition, Preference);
DnsMessageBase.EncodeDomainName(messageData, offset, ref currentPosition, ExchangeDomainName, true, domainNames);
}