internal override void ParseRecordData(byte[] resultData, int startPosition, int length)
{
KeyTag = DnsMessageBase.ParseUShort(resultData, ref startPosition);
Algorithm = (DnsSecAlgorithm)resultData[startPosition++];
DigestType = (DnsSecDigestType)resultData[startPosition++];
Digest = DnsMessageBase.ParseByteData(resultData, ref startPosition, length - 4);
}
internal override void ParseRecordData(byte[] resultData, int startPosition, int length)
{
Flags = DnsMessageBase.ParseUShort(resultData, ref startPosition);
Protocol = resultData[startPosition++];
Algorithm = (DnsSecAlgorithm)resultData[startPosition++];
PublicKey = DnsMessageBase.ParseByteData(resultData, ref startPosition, length - 4);
}
internal override void ParseRecordData(byte[] resultData, int startPosition, int length)
{
Type = (CertType)DnsMessageBase.ParseUShort(resultData, ref startPosition);
KeyTag = DnsMessageBase.ParseUShort(resultData, ref startPosition);
Algorithm = (DnsSecAlgorithm)resultData[startPosition++];
Certificate = DnsMessageBase.ParseByteData(resultData, ref startPosition, length - 5);
}
internal override void ParseRecordData(byte[] resultData, int startPosition, int length)
{
Priority = DnsMessageBase.ParseUShort(resultData, ref startPosition);
Weight = DnsMessageBase.ParseUShort(resultData, ref startPosition);
Port = DnsMessageBase.ParseUShort(resultData, ref startPosition);
Target = DnsMessageBase.ParseDomainName(resultData, ref startPosition);
}
internal override void ParseRecordData(byte[] resultData, int currentPosition, int length)
{
int endPosition = currentPosition + length;
Prefixes = new List <AddressPrefix>();
while (currentPosition < endPosition)
{
Family family = (Family)DnsMessageBase.ParseUShort(resultData, ref currentPosition);
byte prefix = resultData[currentPosition++];
byte addressLength = resultData[currentPosition++];
bool isNegated = false;
if (addressLength > 127)
{
isNegated = true;
addressLength -= 128;
}
byte[] addressData = new byte[(family == Family.IpV4) ? 4 : 16];
Buffer.BlockCopy(resultData, currentPosition, addressData, 0, addressLength);
currentPosition += addressLength;
Prefixes.Add(new AddressPrefix(isNegated, new IPAddress(addressData), prefix));
}
}
internal override void ParseData(byte[] resultData, int startPosition, int length)
{
Version = DnsMessageBase.ParseUShort(resultData, ref startPosition);
OperationCode = (LlqOperationCode)DnsMessageBase.ParseUShort(resultData, ref startPosition);
ErrorCode = (LlqErrorCode)DnsMessageBase.ParseUShort(resultData, ref startPosition);
Id = DnsMessageBase.ParseULong(resultData, ref startPosition);
LeaseTime = TimeSpan.FromSeconds(DnsMessageBase.ParseUInt(resultData, ref startPosition));
}
internal override void ParseRecordData(byte[] resultData, int startPosition, int length)
{
Order = DnsMessageBase.ParseUShort(resultData, ref startPosition);
Preference = DnsMessageBase.ParseUShort(resultData, ref startPosition);
Flags = DnsMessageBase.ParseText(resultData, ref startPosition);
Services = DnsMessageBase.ParseText(resultData, ref startPosition);
RegExp = DnsMessageBase.ParseText(resultData, ref startPosition);
Replacement = DnsMessageBase.ParseDomainName(resultData, ref startPosition);
}
internal override void ParseRecordData(byte[] resultData, int currentPosition, int length)
{
HashAlgorithm = (DnsSecAlgorithm)resultData[currentPosition++];
Flags = resultData[currentPosition++];
Iterations = DnsMessageBase.ParseUShort(resultData, ref currentPosition);
int saltLength = resultData[currentPosition++];
Salt = DnsMessageBase.ParseByteData(resultData, ref currentPosition, saltLength);
}
internal override void ParseRecordData(byte[] resultData, int startPosition, int length)
{
int endPosition = startPosition + length;
Options = new List <EDnsOptionBase>();
while (startPosition < endPosition)
{
EDnsOptionType type = (EDnsOptionType)DnsMessageBase.ParseUShort(resultData, ref startPosition);
ushort dataLength = DnsMessageBase.ParseUShort(resultData, ref startPosition);
EDnsOptionBase option;
switch (type)
{
case EDnsOptionType.LongLivedQuery:
option = new LongLivedQueryOption();
break;
case EDnsOptionType.UpdateLease:
option = new UpdateLeaseOption();
break;
case EDnsOptionType.NsId:
option = new NsIdOption();
break;
case EDnsOptionType.Owner:
option = new OwnerOption();
break;
case EDnsOptionType.DnssecAlgorithmUnderstood:
option = new DnssecAlgorithmUnderstoodOption();
break;
case EDnsOptionType.DsHashUnderstood:
option = new DsHashUnderstoodOption();
break;
case EDnsOptionType.Nsec3HashUnderstood:
option = new Nsec3HashUnderstoodOption();
break;
case EDnsOptionType.ClientSubnet:
option = new ClientSubnetOption();
break;
default:
option = new UnknownOption(type);
break;
}
option.ParseData(resultData, startPosition, dataLength);
Options.Add(option);
startPosition += dataLength;
}
}
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 TcpReceiveLengthCompleted <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.TcpBytesToReceive -= state.TcpStream.EndRead(ar);
if (state.TcpBytesToReceive > 0)
{
IAsyncResult asyncResult = state.TcpStream.BeginRead(state.Buffer, 2 - state.TcpBytesToReceive, state.TcpBytesToReceive, TcpReceiveLengthCompleted <TMessage>, state);
state.Timer = new Timer(TcpTimedOut <TMessage>, asyncResult, state.TimeRemaining, Timeout.Infinite);
}
else
{
int tmp = 0;
int responseLength = DnsMessageBase.ParseUShort(state.Buffer, ref tmp);
state.Buffer = new byte[responseLength];
state.TcpBytesToReceive = responseLength;
IAsyncResult asyncResult = state.TcpStream.BeginRead(state.Buffer, 0, responseLength, TcpReceiveCompleted <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);
}
}
}
protected override void ParsePublicKey(byte[] resultData, int startPosition, int length)
{
int primeLength = DnsMessageBase.ParseUShort(resultData, ref startPosition);
Prime = DnsMessageBase.ParseByteData(resultData, ref startPosition, primeLength);
int generatorLength = DnsMessageBase.ParseUShort(resultData, ref startPosition);
Generator = DnsMessageBase.ParseByteData(resultData, ref startPosition, generatorLength);
int publicValueLength = DnsMessageBase.ParseUShort(resultData, ref startPosition);
PublicValue = DnsMessageBase.ParseByteData(resultData, ref startPosition, publicValueLength);
}
internal override void ParseData(byte[] resultData, int startPosition, int length)
{
ushort family = DnsMessageBase.ParseUShort(resultData, ref startPosition);
SourceNetmask = resultData[startPosition++];
ScopeNetmask = resultData[startPosition++];
byte[] addressData = new byte[family == 1 ? 4 : 16];
Buffer.BlockCopy(resultData, startPosition, addressData, 0, GetAddressLength());
Address = new IPAddress(addressData);
}
internal override void ParseRecordData(byte[] resultData, int startPosition, int length)
{
Algorithm = TSigAlgorithmHelper.GetAlgorithmByName(DnsMessageBase.ParseDomainName(resultData, ref startPosition));
Inception = ParseDateTime(resultData, ref startPosition);
Expiration = ParseDateTime(resultData, ref startPosition);
Mode = (TKeyMode)DnsMessageBase.ParseUShort(resultData, ref startPosition);
Error = (ReturnCode)DnsMessageBase.ParseUShort(resultData, ref startPosition);
int keyLength = DnsMessageBase.ParseUShort(resultData, ref startPosition);
Key = DnsMessageBase.ParseByteData(resultData, ref startPosition, keyLength);
int otherDataLength = DnsMessageBase.ParseUShort(resultData, ref startPosition);
OtherData = DnsMessageBase.ParseByteData(resultData, ref startPosition, otherDataLength);
}
internal override void ParseRecordData(byte[] resultData, int startPosition, int length)
{
Algorithm = TSigAlgorithmHelper.GetAlgorithmByName(DnsMessageBase.ParseDomainName(resultData, ref startPosition));
TimeSigned = ParseDateTime(resultData, ref startPosition);
Fudge = TimeSpan.FromSeconds(DnsMessageBase.ParseUShort(resultData, ref startPosition));
int macSize = DnsMessageBase.ParseUShort(resultData, ref startPosition);
Mac = DnsMessageBase.ParseByteData(resultData, ref startPosition, macSize);
OriginalID = DnsMessageBase.ParseUShort(resultData, ref startPosition);
Error = (ReturnCode)DnsMessageBase.ParseUShort(resultData, ref startPosition);
int otherDataSize = DnsMessageBase.ParseUShort(resultData, ref startPosition);
OtherData = DnsMessageBase.ParseByteData(resultData, ref startPosition, otherDataSize);
}
internal override void ParseRecordData(byte[] resultData, int startPosition, int length)
{
int currentPosition = startPosition;
TypeCovered = (RecordType)DnsMessageBase.ParseUShort(resultData, ref currentPosition);
Algorithm = (DnsSecAlgorithm)resultData[currentPosition++];
Labels = resultData[currentPosition++];
OriginalTimeToLive = DnsMessageBase.ParseInt(resultData, ref currentPosition);
SignatureExpiration = ParseDateTime(resultData, ref currentPosition);
SignatureInception = ParseDateTime(resultData, ref currentPosition);
KeyTag = DnsMessageBase.ParseUShort(resultData, ref currentPosition);
SignersName = DnsMessageBase.ParseDomainName(resultData, ref currentPosition);
Signature = DnsMessageBase.ParseByteData(resultData, ref currentPosition, length + startPosition - currentPosition);
}
private void EndTcpReadLength(IAsyncResult ar)
{
TcpClient client = null;
NetworkStream stream = null;
try
{
MyState state = (MyState)ar.AsyncState;
client = state.Client;
stream = state.Stream;
state.Timer.Dispose();
state.BytesToReceive -= stream.EndRead(ar);
if (state.BytesToReceive > 0)
{
if (!IsTcpClientConnected(client))
{
HandleTcpException(null, stream, client);
return;
}
state.Timer = new Timer(TcpTimedOut, state, state.TimeRemaining, System.Threading.Timeout.Infinite);
state.AsyncResult = stream.BeginRead(state.Buffer, state.Buffer.Length - state.BytesToReceive, state.BytesToReceive, EndTcpReadLength, state);
}
else
{
int tmp = 0;
int length = DnsMessageBase.ParseUShort(state.Buffer, ref tmp);
if (length > 0)
{
state.Buffer = new byte[length];
state.Timer = new Timer(TcpTimedOut, state, state.TimeRemaining, System.Threading.Timeout.Infinite);
state.AsyncResult = stream.BeginRead(state.Buffer, 0, length, EndTcpReadData, state);
}
else
{
HandleTcpException(null, stream, client);
}
}
}
catch (Exception e)
{
HandleTcpException(e, stream, client);
}
}
internal override void ParseRecordData(byte[] resultData, int currentPosition, int length)
{
int endPosition = currentPosition + length;
HashAlgorithm = (DnsSecAlgorithm)resultData[currentPosition++];
Flags = resultData[currentPosition++];
Iterations = DnsMessageBase.ParseUShort(resultData, ref currentPosition);
int saltLength = resultData[currentPosition++];
Salt = DnsMessageBase.ParseByteData(resultData, ref currentPosition, saltLength);
int hashLength = resultData[currentPosition++];
NextHashedOwnerName = DnsMessageBase.ParseByteData(resultData, ref currentPosition, hashLength);
Types = NSecRecord.ParseTypeBitMap(resultData, ref currentPosition, endPosition);
}
internal override void ParseRecordData(byte[] resultData, int currentPosition, int length)
{
int endPosition = currentPosition + length;
int hitLength = resultData[currentPosition++];
Algorithm = (IpSecKeyRecord.IpSecAlgorithm)resultData[currentPosition++];
int publicKeyLength = DnsMessageBase.ParseUShort(resultData, ref currentPosition);
Hit = DnsMessageBase.ParseByteData(resultData, ref currentPosition, hitLength);
PublicKey = DnsMessageBase.ParseByteData(resultData, ref currentPosition, publicKeyLength);
RendezvousServers = new List <string>();
while (currentPosition < endPosition)
{
RendezvousServers.Add(DnsMessageBase.ParseDomainName(resultData, ref currentPosition));
}
}
internal override void ParseRecordData(byte[] resultData, int startPosition, int length)
{
SubType = (AfsSubType)DnsMessageBase.ParseUShort(resultData, ref startPosition);
Hostname = DnsMessageBase.ParseDomainName(resultData, ref startPosition);
}
internal override void ParseRecordData(byte[] resultData, int startPosition, int length)
{
Preference = DnsMessageBase.ParseUShort(resultData, ref startPosition);
ExchangeDomainName = DnsMessageBase.ParseDomainName(resultData, ref startPosition);
}
internal override void ParseRecordData(byte[] resultData, int startPosition, int length)
{
Preference = DnsMessageBase.ParseUShort(resultData, ref startPosition);
Locator64 = DnsMessageBase.ParseULong(resultData, ref startPosition);
}