private void DatabaseInfo(byte[] items, byte[] buffer, int bufferLength)
{
try
{
Xdr.Write(IscCodes.op_info_database);
Xdr.Write(_handle);
Xdr.Write(Incarnation);
Xdr.WriteBuffer(items, items.Length);
Xdr.Write(bufferLength);
Xdr.Flush();
var response = (GenericResponse)ReadResponse();
var responseLength = bufferLength;
if (response.Data.Length < bufferLength)
{
responseLength = response.Data.Length;
}
Buffer.BlockCopy(response.Data, 0, buffer, 0, responseLength);
}
catch (IOException ex)
{
throw IscException.ForErrorCode(IscCodes.isc_network_error, ex);
}
}
public override async Task AttachWithTrustedAuth(DatabaseParameterBufferBase dpb, string dataSource, int port, string database, byte[] cryptKey, AsyncWrappingCommonArgs async)
{
try
{
using (var sspiHelper = new SspiHelper())
{
var authData = sspiHelper.InitializeClientSecurity();
await SendTrustedAuthToBuffer(dpb, authData, async).ConfigureAwait(false);
await SendAttachToBuffer(dpb, database, async).ConfigureAwait(false);
await Xdr.Flush(async).ConfigureAwait(false);
var response = await ReadResponse(async).ConfigureAwait(false);
response = await ProcessTrustedAuthResponse(sspiHelper, response, async).ConfigureAwait(false);
await ProcessAttachResponse((GenericResponse)response, async).ConfigureAwait(false);
}
}
catch (IscException)
{
await SafelyDetach(async).ConfigureAwait(false);
throw;
}
catch (IOException ex)
{
await SafelyDetach(async).ConfigureAwait(false);
throw IscException.ForIOException(ex);
}
await AfterAttachActions(async).ConfigureAwait(false);
}
public override async Task Attach(DatabaseParameterBufferBase dpb, string dataSource, int port, string database, byte[] cryptKey, AsyncWrappingCommonArgs async)
{
try
{
await SendAttachToBuffer(dpb, database, async).ConfigureAwait(false);
await Xdr.Flush(async).ConfigureAwait(false);
var response = await ReadResponse(async).ConfigureAwait(false);
response = await ProcessCryptCallbackResponseIfNeeded(response, cryptKey, async).ConfigureAwait(false);
await ProcessAttachResponse((GenericResponse)response, async).ConfigureAwait(false);
}
catch (IscException)
{
await SafelyDetach(async).ConfigureAwait(false);
throw;
}
catch (IOException ex)
{
await SafelyDetach(async).ConfigureAwait(false);
throw IscException.ForErrorCode(IscCodes.isc_network_error, ex);
}
await AfterAttachActions(async).ConfigureAwait(false);
}
private async Task DatabaseInfo(byte[] items, byte[] buffer, int bufferLength, AsyncWrappingCommonArgs async)
{
try
{
await Xdr.Write(IscCodes.op_info_database, async).ConfigureAwait(false);
await Xdr.Write(_handle, async).ConfigureAwait(false);
await Xdr.Write(Incarnation, async).ConfigureAwait(false);
await Xdr.WriteBuffer(items, items.Length, async).ConfigureAwait(false);
await Xdr.Write(bufferLength, async).ConfigureAwait(false);
await Xdr.Flush(async).ConfigureAwait(false);
var response = (GenericResponse) await ReadResponse(async).ConfigureAwait(false);
var responseLength = bufferLength;
if (response.Data.Length < bufferLength)
{
responseLength = response.Data.Length;
}
Buffer.BlockCopy(response.Data, 0, buffer, 0, responseLength);
}
catch (IOException ex)
{
throw IscException.ForIOException(ex);
}
}
public override void AttachWithTrustedAuth(DatabaseParameterBufferBase dpb, string dataSource, int port, string database, byte[] cryptKey)
{
try
{
using (var sspiHelper = new SspiHelper())
{
var authData = sspiHelper.InitializeClientSecurity();
SendTrustedAuthToBuffer(dpb, authData);
SendAttachToBuffer(dpb, database);
Xdr.Flush();
var response = ReadResponse();
ProcessTrustedAuthResponse(sspiHelper, ref response);
ProcessAttachResponse((GenericResponse)response);
}
}
catch (IscException)
{
SafelyDetach();
throw;
}
catch (IOException ex)
{
SafelyDetach();
throw IscException.ForErrorCode(IscCodes.isc_network_error, ex);
}
AfterAttachActions();
}
public void QueueEvents(RemoteEvent remoteEvent)
{
try
{
if (_eventManager == null)
{
ConnectionRequest(out var auxHandle, out var ipAddress, out var portNumber);
_eventManager = new GdsEventManager(auxHandle, ipAddress, portNumber);
var dummy = _eventManager.WaitForEventsAsync(remoteEvent);
}
remoteEvent.LocalId++;
var epb = remoteEvent.BuildEpb();
var epbData = epb.ToArray();
Xdr.Write(IscCodes.op_que_events);
Xdr.Write(_handle);
Xdr.WriteBuffer(epbData);
Xdr.Write(AddressOfAstRoutine);
Xdr.Write(ArgumentToAstRoutine);
Xdr.Write(remoteEvent.LocalId);
Xdr.Flush();
var response = (GenericResponse)ReadResponse();
remoteEvent.RemoteId = response.ObjectHandle;
}
catch (IOException ex)
{
throw IscException.ForErrorCode(IscCodes.isc_network_error, ex);
}
}
public override void QueueEvents(RemoteEvent remoteEvent)
{
try
{
if (_eventManager == null)
{
var(auxHandle, ipAddress, portNumber, timeout) = ConnectionRequest();
_eventManager = new GdsEventManager(auxHandle, ipAddress, portNumber, timeout);
_eventManager.Open();
var dummy = _eventManager.StartWaitingForEvents(remoteEvent);
}
remoteEvent.LocalId++;
var epb = remoteEvent.BuildEpb();
var epbData = epb.ToArray();
Xdr.Write(IscCodes.op_que_events);
Xdr.Write(_handle);
Xdr.WriteBuffer(epbData);
Xdr.Write(AddressOfAstRoutine);
Xdr.Write(ArgumentToAstRoutine);
Xdr.Write(remoteEvent.LocalId);
Xdr.Flush();
var response = (GenericResponse)ReadResponse();
remoteEvent.RemoteId = response.ObjectHandle;
}
catch (IOException ex)
{
throw IscException.ForIOException(ex);
}
}
public virtual async Task <(int auxHandle, string ipAddress, int portNumber)> ConnectionRequest(AsyncWrappingCommonArgs async)
{
try
{
await Xdr.Write(IscCodes.op_connect_request, async).ConfigureAwait(false);
await Xdr.Write(IscCodes.P_REQ_async, async).ConfigureAwait(false);
await Xdr.Write(_handle, async).ConfigureAwait(false);
await Xdr.Write(PartnerIdentification, async).ConfigureAwait(false);
await Xdr.Flush(async).ConfigureAwait(false);
await ReadOperation(async).ConfigureAwait(false);
var auxHandle = await Xdr.ReadInt32(async).ConfigureAwait(false);
var garbage1 = new byte[8];
await Xdr.ReadBytes(garbage1, 8, async).ConfigureAwait(false);
var respLen = await Xdr.ReadInt32(async).ConfigureAwait(false);
respLen += respLen % 4;
var sin_family = new byte[2];
await Xdr.ReadBytes(sin_family, 2, async).ConfigureAwait(false);
respLen -= 2;
var sin_port = new byte[2];
await Xdr.ReadBytes(sin_port, 2, async).ConfigureAwait(false);
var portNumber = (ushort)IPAddress.NetworkToHostOrder(BitConverter.ToInt16(sin_port, 0));
respLen -= 2;
// * The address returned by the server may be incorrect if it is behind a NAT box
// * so we must use the address that was used to connect the main socket, not the
// * address reported by the server.
var sin_addr = new byte[4];
await Xdr.ReadBytes(sin_addr, 4, async).ConfigureAwait(false);
var ipAddress = _connection.IPAddress.ToString();
respLen -= 4;
var garbage2 = new byte[respLen];
await Xdr.ReadBytes(garbage2, respLen, async).ConfigureAwait(false);
await Xdr.ReadStatusVector(async).ConfigureAwait(false);
return(auxHandle, ipAddress, portNumber);
}
catch (IOException ex)
{
throw IscException.ForIOException(ex);
}
}
protected void ProcessTrustedAuthResponse(SspiHelper sspiHelper, ref IResponse response)
{
while (response is AuthResponse)
{
var authData = sspiHelper.GetClientSecurity(((AuthResponse)response).Data);
Xdr.Write(IscCodes.op_trusted_auth);
Xdr.WriteBuffer(authData);
Xdr.Flush();
response = ReadResponse();
}
}
protected internal IResponse ProcessCryptCallbackResponseIfNeeded(IResponse response, byte[] cryptKey)
{
while (response is CryptKeyCallbackResponse)
{
Xdr.Write(IscCodes.op_crypt_key_callback);
Xdr.WriteBuffer(cryptKey);
Xdr.Flush();
response = ReadResponse();
}
return(response);
}
public virtual async Task Detach(AsyncWrappingCommonArgs async)
{
if (TransactionCount > 0)
{
throw IscException.ForErrorCodeIntParam(IscCodes.isc_open_trans, TransactionCount);
}
try
{
await CloseEventManager(async).ConfigureAwait(false);
var detach = _handle != -1;
if (detach)
{
await Xdr.Write(IscCodes.op_detach, async).ConfigureAwait(false);
await Xdr.Write(_handle, async).ConfigureAwait(false);
}
await Xdr.Write(IscCodes.op_disconnect, async).ConfigureAwait(false);
await Xdr.Flush(async).ConfigureAwait(false);
if (detach)
{
await ReadResponse(async).ConfigureAwait(false);
}
await CloseConnection(async).ConfigureAwait(false);
}
catch (IOException ex)
{
try
{
await CloseConnection(async).ConfigureAwait(false);
}
catch (IOException ex2)
{
throw IscException.ForErrorCode(IscCodes.isc_network_error, ex2);
}
throw IscException.ForErrorCode(IscCodes.isc_network_error, ex);
}
finally
{
_connection = null;
_charset = null;
_eventManager = null;
_serverVersion = null;
_dialect = 0;
_handle = -1;
_packetSize = 0;
_warningMessage = null;
_transactionCount = 0;
}
}
public virtual void ConnectionRequest(out int auxHandle, out string ipAddress, out int portNumber)
{
try
{
Xdr.Write(IscCodes.op_connect_request);
Xdr.Write(IscCodes.P_REQ_async);
Xdr.Write(_handle);
Xdr.Write(PartnerIdentification);
Xdr.Flush();
ReadOperation();
auxHandle = Xdr.ReadInt32();
var garbage1 = new byte[8];
Xdr.ReadBytes(garbage1, 8);
var respLen = Xdr.ReadInt32();
respLen += respLen % 4;
var sin_family = new byte[2];
Xdr.ReadBytes(sin_family, 2);
respLen -= 2;
var sin_port = new byte[2];
Xdr.ReadBytes(sin_port, 2);
portNumber = (ushort)IPAddress.NetworkToHostOrder(BitConverter.ToInt16(sin_port, 0));
respLen -= 2;
// * The address returned by the server may be incorrect if it is behind a NAT box
// * so we must use the address that was used to connect the main socket, not the
// * address reported by the server.
var sin_addr = new byte[4];
Xdr.ReadBytes(sin_addr, 4);
//ipAddress = string.Format(
// CultureInfo.InvariantCulture,
// "{0}.{1}.{2}.{3}",
// buffer[0], buffer[1], buffer[2], buffer[3]);
ipAddress = _connection.IPAddress.ToString();
respLen -= 4;
var garbage2 = new byte[respLen];
Xdr.ReadBytes(garbage2, respLen);
Xdr.ReadStatusVector();
}
catch (IOException ex)
{
throw IscException.ForErrorCode(IscCodes.isc_network_error, ex);
}
}
public override void CreateDatabase(DatabaseParameterBufferBase dpb, string database, byte[] cryptKey)
{
try
{
SendCreateToBuffer(dpb, database);
Xdr.Flush();
ProcessCreateResponse((GenericResponse)ReadResponse());
}
catch (IOException ex)
{
throw IscException.ForIOException(ex);
}
}
public virtual void ReleaseObject(int op, int id)
{
try
{
SendReleaseObjectToBuffer(op, id);
Xdr.Flush();
ProcessReleaseObjectResponse(ReadResponse());
}
catch (IOException ex)
{
throw IscException.ForIOException(ex);
}
}
public virtual void CreateDatabase(DatabaseParameterBuffer dpb, string dataSource, int port, string database, byte[] cryptKey)
{
try
{
SendCreateToBuffer(dpb, database);
Xdr.Flush();
ProcessCreateResponse(ReadResponse <GenericResponse>());
}
catch (IOException ex)
{
throw IscException.ForErrorCode(IscCodes.isc_network_error, ex);
}
}
public virtual void ReleaseObject(int op, int id)
{
try
{
DoReleaseObjectPacket(op, id);
Xdr.Flush();
ProcessReleaseObjectResponse(ReadResponse());
}
catch (IOException ex)
{
throw IscException.ForErrorCode(IscCodes.isc_network_error, ex);
}
}
public override void CancelOperation(int kind)
{
try
{
SendCancelOperationToBuffer(kind);
Xdr.Flush();
// no response, this is async
}
catch (IOException ex)
{
throw IscException.ForErrorCode(IscCodes.isc_network_error, ex);
}
}
public override void CancelOperation(int kind)
{
try
{
SendCancelOperationToBuffer(kind);
Xdr.Flush();
// no response, this is out-of-band
}
catch (IOException ex)
{
throw IscException.ForIOException(ex);
}
}
public virtual void Detach()
{
if (TransactionCount > 0)
{
throw IscException.ForErrorCodeIntParam(IscCodes.isc_open_trans, TransactionCount);
}
try
{
CloseEventManager();
var detach = _handle != -1;
if (detach)
{
Xdr.Write(IscCodes.op_detach);
Xdr.Write(_handle);
}
Xdr.Write(IscCodes.op_disconnect);
Xdr.Flush();
if (detach)
{
ReadResponse();
}
CloseConnection();
}
catch (IOException ex)
{
try
{
CloseConnection();
}
catch (IOException ex2)
{
throw IscException.ForErrorCode(IscCodes.isc_network_error, ex2);
}
throw IscException.ForErrorCode(IscCodes.isc_network_error, ex);
}
finally
{
_connection = null;
_charset = null;
_eventManager = null;
_serverVersion = null;
_dialect = 0;
_handle = -1;
_packetSize = 0;
_warningMessage = null;
_transactionCount = 0;
}
}
public override async Task CreateDatabase(DatabaseParameterBufferBase dpb, string dataSource, int port, string database, byte[] cryptKey, AsyncWrappingCommonArgs async)
{
try
{
await SendCreateToBuffer(dpb, database, async).ConfigureAwait(false);
await Xdr.Flush(async).ConfigureAwait(false);
await ProcessCreateResponse((GenericResponse)await ReadResponse(async).ConfigureAwait(false), async).ConfigureAwait(false);
}
catch (IOException ex)
{
throw IscException.ForIOException(ex);
}
}
internal async Task <IResponse> ProcessCryptCallbackResponseIfNeeded(IResponse response, byte[] cryptKey, AsyncWrappingCommonArgs async)
{
while (response is CryptKeyCallbackResponse cryptResponse)
{
await Xdr.Write(IscCodes.op_crypt_key_callback, async).ConfigureAwait(false);
await Xdr.WriteBuffer(cryptKey, async).ConfigureAwait(false);
await Xdr.Flush(async).ConfigureAwait(false);
response = await ReadResponse(async).ConfigureAwait(false);
}
return(response);
}
public override void CreateDatabaseWithTrustedAuth(DatabaseParameterBufferBase dpb, string dataSource, int port, string database, byte[] cryptKey)
{
using (var sspiHelper = new SspiHelper())
{
var authData = sspiHelper.InitializeClientSecurity();
SendTrustedAuthToBuffer(dpb, authData);
SendCreateToBuffer(dpb, database);
Xdr.Flush();
var response = ReadResponse();
ProcessTrustedAuthResponse(sspiHelper, ref response);
ProcessCreateResponse((GenericResponse)response);
}
}
public virtual async Task ReleaseObject(int op, int id, AsyncWrappingCommonArgs async)
{
try
{
await SendReleaseObjectToBuffer(op, id, async).ConfigureAwait(false);
await Xdr.Flush(async).ConfigureAwait(false);
await ProcessReleaseObjectResponse(await ReadResponse(async).ConfigureAwait(false), async).ConfigureAwait(false);
}
catch (IOException ex)
{
throw IscException.ForIOException(ex);
}
}
public virtual (int auxHandle, string ipAddress, int portNumber, int timeout) ConnectionRequest()
{
try
{
Xdr.Write(IscCodes.op_connect_request);
Xdr.Write(IscCodes.P_REQ_async);
Xdr.Write(_handle);
Xdr.Write(PartnerIdentification);
Xdr.Flush();
ReadOperation();
var auxHandle = Xdr.ReadInt32();
var garbage1 = new byte[8];
Xdr.ReadBytes(garbage1, 8);
var respLen = Xdr.ReadInt32();
respLen += respLen % 4;
var sin_family = new byte[2];
Xdr.ReadBytes(sin_family, 2);
respLen -= 2;
var sin_port = new byte[2];
Xdr.ReadBytes(sin_port, 2);
var portNumber = (ushort)IPAddress.NetworkToHostOrder(BitConverter.ToInt16(sin_port, 0));
respLen -= 2;
// * The address returned by the server may be incorrect if it is behind a NAT box
// * so we must use the address that was used to connect the main socket, not the
// * address reported by the server.
var sin_addr = new byte[4];
Xdr.ReadBytes(sin_addr, 4);
var ipAddress = _connection.IPAddress.ToString();
respLen -= 4;
var garbage2 = new byte[respLen];
Xdr.ReadBytes(garbage2, respLen);
Xdr.ReadStatusVector();
return(auxHandle, ipAddress, portNumber, _connection.Timeout);
}
catch (IOException ex)
{
throw IscException.ForIOException(ex);
}
}
public override void Attach(DatabaseParameterBufferBase dpb, string database, byte[] cryptKey)
{
try
{
SendAttachToBuffer(dpb, database);
Xdr.Flush();
var response = ReadResponse();
if (response is ContAuthResponse)
{
while (response is ContAuthResponse contAuthResponse)
{
AuthBlock.Start(contAuthResponse.ServerData, contAuthResponse.AcceptPluginName, contAuthResponse.IsAuthenticated, contAuthResponse.ServerKeys);
AuthBlock.SendContAuthToBuffer(Xdr);
Xdr.Flush();
response = AuthBlock.ProcessContAuthResponse(Xdr);
response = ProcessCryptCallbackResponseIfNeeded(response, cryptKey);
}
var genericResponse = (GenericResponse)response;
ProcessAttachResponse(genericResponse);
if (genericResponse.Data.Any())
{
AuthBlock.SendWireCryptToBuffer(Xdr);
Xdr.Flush();
AuthBlock.ProcessWireCryptResponse(Xdr, _connection);
}
}
else
{
response = ProcessCryptCallbackResponseIfNeeded(response, cryptKey);
ProcessAttachResponse((GenericResponse)response);
AuthBlock.Complete();
}
AuthBlock.WireCryptValidate(IscCodes.PROTOCOL_VERSION13);
}
catch (IscException)
{
SafelyDetach();
throw;
}
catch (IOException ex)
{
SafelyDetach();
throw IscException.ForIOException(ex);
}
AfterAttachActions();
}
public override void Detach()
{
if (TransactionCount > 0)
{
throw IscException.ForErrorCodeIntParam(IscCodes.isc_open_trans, TransactionCount);
}
try
{
CloseEventManager();
var detach = _handle != -1;
if (detach)
{
Xdr.Write(IscCodes.op_detach);
Xdr.Write(_handle);
}
Xdr.Write(IscCodes.op_disconnect);
Xdr.Flush();
if (detach)
{
ReadResponse();
}
CloseConnection();
}
catch (IOException ex)
{
try
{
CloseConnection();
}
catch (IOException)
{ }
throw IscException.ForIOException(ex);
}
finally
{
_connection = null;
Charset = null;
_eventManager = null;
ServerVersion = null;
Dialect = 0;
_handle = -1;
PacketSize = 0;
WarningMessage = null;
TransactionCount = 0;
}
}
public override async Task CancelOperation(int kind, AsyncWrappingCommonArgs async)
{
try
{
await SendCancelOperationToBuffer(kind, async).ConfigureAwait(false);
await Xdr.Flush(async).ConfigureAwait(false);
// no response, this is async
}
catch (IOException ex)
{
throw IscException.ForErrorCode(IscCodes.isc_network_error, ex);
}
}
public override async Task CancelOperation(int kind, AsyncWrappingCommonArgs async)
{
try
{
await SendCancelOperationToBuffer(kind, async).ConfigureAwait(false);
await Xdr.Flush(async).ConfigureAwait(false);
// no response, this is out-of-band
}
catch (IOException ex)
{
throw IscException.ForIOException(ex);
}
}
public override void CreateDatabase(DatabaseParameterBuffer dpb, string dataSource, int port, string database, byte[] cryptKey)
{
try
{
SendCreateToBuffer(dpb, database);
Xdr.Flush();
var response = ReadResponse();
response = ProcessCryptCallbackResponseIfNeeded(response, cryptKey);
ProcessCreateResponse(response as GenericResponse);
}
catch (IOException ex)
{
throw IscException.ForErrorCode(IscCodes.isc_network_error, ex);
}
}
protected async Task <IResponse> ProcessTrustedAuthResponse(SspiHelper sspiHelper, IResponse response, AsyncWrappingCommonArgs async)
{
while (response is AuthResponse)
{
var authData = sspiHelper.GetClientSecurity(((AuthResponse)response).Data);
await Xdr.Write(IscCodes.op_trusted_auth, async).ConfigureAwait(false);
await Xdr.WriteBuffer(authData, async).ConfigureAwait(false);
await Xdr.Flush(async).ConfigureAwait(false);
response = await ReadResponse(async).ConfigureAwait(false);
}
return(response);
}