private int ProcessReadErrorCode(SecurityStatusPal status, byte[] buffer, int offset, int count, AsyncProtocolRequest asyncRequest, byte[] extraBuffer)
{
ProtocolToken message = new ProtocolToken(null, status);
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("SecureChannel#" + LoggingHash.HashString(this) + "::***Processing an error Status = " + message.Status.ToString());
}
if (message.Renegotiate)
{
_sslState.ReplyOnReAuthentication(extraBuffer);
// Loop on read.
return(-1);
}
if (message.CloseConnection)
{
_sslState.FinishRead(null);
if (asyncRequest != null)
{
asyncRequest.CompleteUser((object)0);
}
return(0);
}
throw new IOException(SR.net_io_decrypt, message.GetException());
}
private static int DecryptNtlm(
SafeDeleteContext securityContext,
byte[] buffer,
int offset,
int count,
bool isConfidential,
out int newOffset,
uint sequenceNumber)
{
const int ntlmSignatureLength = 16;
// For the most part the arguments are verified in Decrypt().
if (count < ntlmSignatureLength)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Assert("NTAuthentication#" + LoggingHash.HashString(securityContext) + "::DecryptNtlm", "Argument 'count' out of range.");
}
Debug.Fail("NTAuthentication#" + LoggingHash.HashString(securityContext) + "::DecryptNtlm", "Argument 'count' out of range.");
throw new ArgumentOutOfRangeException(nameof(count));
}
var securityBuffer = new SecurityBuffer[2];
securityBuffer[0] = new SecurityBuffer(buffer, offset, ntlmSignatureLength, SecurityBufferType.Token);
securityBuffer[1] = new SecurityBuffer(buffer, offset + ntlmSignatureLength, count - ntlmSignatureLength, SecurityBufferType.Data);
int errorCode;
SecurityBufferType realDataType = SecurityBufferType.Data;
if (isConfidential)
{
errorCode = SSPIWrapper.DecryptMessage(GlobalSSPI.SSPIAuth, securityContext, securityBuffer, sequenceNumber);
}
else
{
realDataType |= SecurityBufferType.ReadOnlyFlag;
securityBuffer[1].type = realDataType;
errorCode = SSPIWrapper.VerifySignature(GlobalSSPI.SSPIAuth, securityContext, securityBuffer, sequenceNumber);
}
if (errorCode != 0)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("NTAuthentication#" + LoggingHash.HashString(securityContext) + "::Decrypt() throw Error = " + errorCode.ToString("x", NumberFormatInfo.InvariantInfo));
}
throw new Win32Exception(errorCode);
}
if (securityBuffer[1].type != realDataType)
{
throw new InternalException();
}
newOffset = securityBuffer[1].offset;
return(securityBuffer[1].size);
}
private void ConnectCallback(IAsyncResult result)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Enter("SmtpClient#" + LoggingHash.HashString(this) + "::ConnectCallback");
}
try
{
_transport.EndGetConnection(result);
if (_cancelled)
{
Complete(null, result);
}
else
{
// Detected durring Begin/EndGetConnection, restrictable using DeliveryFormat
bool allowUnicode = IsUnicodeSupported();
ValidateUnicodeRequirement(_message, _recipients, allowUnicode);
_transport.BeginSendMail(_message.Sender ?? _message.From, _recipients,
_message.BuildDeliveryStatusNotificationString(), allowUnicode,
new AsyncCallback(SendMailCallback), result.AsyncState);
}
}
catch (Exception e)
{
Complete(e, result);
}
if (GlobalLog.IsEnabled)
{
GlobalLog.Leave("SmtpClient#" + LoggingHash.HashString(this) + "::ConnectCallback");
}
}
// SetUnmanagedStructures
//
// This needs to be called for overlapped IO to function properly.
//
// Fills in overlapped Structures used in an async overlapped Winsock call.
// These calls are outside the runtime and are unmanaged code, so we need
// to prepare specific structures and ints that lie in unmanaged memory
// since the overlapped calls may complete asynchronously.
internal void SetUnmanagedStructures(object objectsToPin)
{
Socket s = (Socket)AsyncObject;
// Bind the Win32 Socket Handle to the ThreadPool
Debug.Assert(s != null, "m_CurrentSocket is null");
Debug.Assert(s.SafeHandle != null, "m_CurrentSocket.SafeHandle is null");
if (s.SafeHandle.IsInvalid)
{
throw new ObjectDisposedException(s.GetType().FullName);
}
ThreadPoolBoundHandle boundHandle = s.SafeHandle.GetOrAllocateThreadPoolBoundHandle();
unsafe
{
NativeOverlapped *overlapped = boundHandle.AllocateNativeOverlapped(s_ioCallback, this, objectsToPin);
_nativeOverlapped = new SafeNativeOverlapped(s.SafeHandle, overlapped);
GlobalLog.Print(
"BaseOverlappedAsyncResult#" + LoggingHash.HashString(this) +
"::boundHandle#" + LoggingHash.HashString(boundHandle) +
"::AllocateNativeOverlapped. Return=" +
_nativeOverlapped.DangerousGetHandle().ToString("x"));
}
}
protected override bool ReleaseHandle()
{
GlobalLog.Print("SafeNativeOverlapped#" + LoggingHash.HashString(this) + "::ReleaseHandle()");
FreeNativeOverlapped();
return(true);
}
internal BaseOverlappedAsyncResult(Socket socket, Object asyncState, AsyncCallback asyncCallback)
: base(socket, asyncState, asyncCallback)
{
_cleanupCount = 1;
GlobalLog.Print(
"BaseOverlappedAsyncResult#" + LoggingHash.HashString(this) +
"(Socket#" + LoggingHash.HashString(socket) + ")");
}
private SafeNativeOverlapped()
: this(IntPtr.Zero)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("SafeNativeOverlapped#" + LoggingHash.HashString(this) + "::ctor(null)");
}
}
/*++
* Encrypt - Encrypts our bytes before we send them over the wire
*
* PERF: make more efficient, this does an extra copy when the offset
* is non-zero.
*
* Input:
* buffer - bytes for sending
* offset -
* size -
* output - Encrypted bytes
* --*/
internal SecurityStatusPal Encrypt(byte[] buffer, int offset, int size, ref byte[] output, out int resultSize)
{
GlobalLog.Enter("SecureChannel#" + LoggingHash.HashString(this) + "::Encrypt");
GlobalLog.Print("SecureChannel#" + LoggingHash.HashString(this) + "::Encrypt() - offset: " + offset.ToString() + " size: " + size.ToString() + " buffersize: " + buffer.Length.ToString());
GlobalLog.Print("SecureChannel#" + LoggingHash.HashString(this) + "::Encrypt() buffer:");
GlobalLog.Dump(buffer, Math.Min(buffer.Length, 128));
byte[] writeBuffer;
try
{
if (offset < 0 || offset > (buffer == null ? 0 : buffer.Length))
{
throw new ArgumentOutOfRangeException("offset");
}
if (size < 0 || size > (buffer == null ? 0 : buffer.Length - offset))
{
throw new ArgumentOutOfRangeException("size");
}
resultSize = 0;
int bufferSizeNeeded = checked (size + _headerSize + _trailerSize);
if (output != null && bufferSizeNeeded <= output.Length)
{
writeBuffer = output;
}
else
{
writeBuffer = new byte[bufferSizeNeeded];
}
Buffer.BlockCopy(buffer, offset, writeBuffer, _headerSize, size);
}
catch (Exception e)
{
if (!ExceptionCheck.IsFatal(e))
{
GlobalLog.Assert(false, "SecureChannel#" + LoggingHash.HashString(this) + "::Encrypt", "Arguments out of range.");
}
throw;
}
SecurityStatusPal secStatus = SslStreamPal.EncryptMessage(_securityContext, writeBuffer, size, _headerSize, _trailerSize, out resultSize);
if (secStatus != SecurityStatusPal.OK)
{
GlobalLog.Leave("SecureChannel#" + LoggingHash.HashString(this) + "::Encrypt ERROR", secStatus.ToString());
}
else
{
output = writeBuffer;
GlobalLog.Leave("SecureChannel#" + LoggingHash.HashString(this) + "::Encrypt OK", "data size:" + resultSize.ToString());
}
return(secStatus);
}
public static SecurityStatusPal EncryptMessage(SafeDeleteContext securityContext, byte[] input, int offset, int size, int headerSize, int trailerSize, ref byte[] output, out int resultSize)
{
// Ensure that there is sufficient space for the message output.
try
{
int bufferSizeNeeded = checked (size + headerSize + trailerSize);
if (output == null || output.Length < bufferSizeNeeded)
{
output = new byte[bufferSizeNeeded];
}
}
catch (Exception e)
{
if (!ExceptionCheck.IsFatal(e))
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Assert("SslStreamPal.Windows: SecureChannel#" + LoggingHash.HashString(securityContext) + "::Encrypt", "Arguments out of range.");
}
Debug.Fail("SslStreamPal.Windows: SecureChannel#" + LoggingHash.HashString(securityContext) + "::Encrypt", "Arguments out of range.");
}
throw;
}
byte[] writeBuffer = output;
// Copy the input into the output buffer to prepare for SCHANNEL's expectations
Buffer.BlockCopy(input, offset, writeBuffer, headerSize, size);
// Encryption using SCHANNEL requires 4 buffers: header, payload, trailer, empty.
SecurityBuffer[] securityBuffer = new SecurityBuffer[4];
securityBuffer[0] = new SecurityBuffer(writeBuffer, 0, headerSize, SecurityBufferType.SECBUFFER_STREAM_HEADER);
securityBuffer[1] = new SecurityBuffer(writeBuffer, headerSize, size, SecurityBufferType.SECBUFFER_DATA);
securityBuffer[2] = new SecurityBuffer(writeBuffer, headerSize + size, trailerSize, SecurityBufferType.SECBUFFER_STREAM_TRAILER);
securityBuffer[3] = new SecurityBuffer(null, SecurityBufferType.SECBUFFER_EMPTY);
int errorCode = SSPIWrapper.EncryptMessage(GlobalSSPI.SSPISecureChannel, securityContext, securityBuffer, 0);
if (errorCode != 0)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("SslStreamPal.Windows: SecureChannel#" + LoggingHash.HashString(securityContext) + "::Encrypt ERROR" + errorCode.ToString("x"));
}
resultSize = 0;
}
else
{
// The full buffer may not be used.
resultSize = securityBuffer[0].size + securityBuffer[1].size + securityBuffer[2].size;
}
return(SecurityStatusAdapterPal.GetSecurityStatusPalFromNativeInt(errorCode));
}
protected override void Dispose(bool disposing)
{
if (disposing)
{
// It is important that the boundHandle is released immediately to allow new overlapped operations.
GlobalLog.Print("SafeNativeOverlapped#" + LoggingHash.HashString(this) + "::Dispose(true)");
FreeNativeOverlapped();
}
}
private void Complete(Exception exception, IAsyncResult result)
{
ContextAwareResult operationCompletedResult = (ContextAwareResult)result.AsyncState;
if (GlobalLog.IsEnabled)
{
GlobalLog.Enter("SmtpClient#" + LoggingHash.HashString(this) + "::Complete");
}
try
{
if (_cancelled)
{
//any exceptions were probably caused by cancellation, clear it.
exception = null;
Abort();
}
// An individual failed recipient exception is benign, only abort here if ALL the recipients failed.
else if (exception != null && (!(exception is SmtpFailedRecipientException) || ((SmtpFailedRecipientException)exception).fatal))
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("SmtpClient#" + LoggingHash.HashString(this) + "::Complete Exception: " + exception.ToString());
}
Abort();
if (!(exception is SmtpException))
{
exception = new SmtpException(SR.SmtpSendMailFailure, exception);
}
}
else
{
if (_writer != null)
{
try
{
_writer.Close();
}
// Close may result in a DataStopCommand and the server may return error codes at this time.
catch (SmtpException se)
{
exception = se;
}
}
_transport.ReleaseConnection();
}
}
finally
{
operationCompletedResult.InvokeCallback(exception);
}
if (GlobalLog.IsEnabled)
{
GlobalLog.Leave("SmtpClient#" + LoggingHash.HashString(this) + "::Complete");
}
}
public unsafe SafeNativeOverlapped(SafeCloseSocket socketHandle, NativeOverlapped *handle)
: this((IntPtr)handle)
{
_safeCloseSocket = socketHandle;
GlobalLog.Print("SafeNativeOverlapped#" + LoggingHash.HashString(this) + "::ctor(socket#" + LoggingHash.HashString(socketHandle) + ")");
#if DEBUG
_safeCloseSocket.AddRef();
#endif
}
private static SafeCloseSocket CreateSocket(InnerSafeCloseSocket socket)
{
SafeCloseSocket ret = new SafeCloseSocket();
CreateSocket(socket, ret);
GlobalLog.Print("SafeCloseSocket#" + LoggingHash.HashString(ret) + "::CreateSocket()");
return(ret);
}
public BaseOverlappedAsyncResult(Socket socket, Object asyncState, AsyncCallback asyncCallback)
: base(socket, asyncState, asyncCallback)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Print(
"BaseOverlappedAsyncResult#" + LoggingHash.HashString(this) +
"(Socket#" + LoggingHash.HashString(socket) + ")");
}
}
// Utility cleanup routine. Frees the overlapped structure.
// This should be overriden to free pinned and unmanaged memory in the subclass.
// It needs to also be invoked from the subclass.
protected virtual void ForceReleaseUnmanagedStructures()
{
// Free the unmanaged memory if allocated.
GlobalLog.Print(
"BaseOverlappedAsyncResult#" + LoggingHash.HashString(this) +
"::ForceReleaseUnmanagedStructures");
_nativeOverlapped.Dispose();
_nativeOverlapped = null;
GC.SuppressFinalize(this);
}
private void LogBuffer(int size)
{
if (!SocketsEventSource.Log.IsEnabled())
{
if (GlobalLog.IsEnabled)
{
GlobalLog.AssertFormat("ReceiveMessageOverlappedAsyncResult#{0}::LogBuffer()|Logging is off!", LoggingHash.HashString(this));
}
Debug.Fail("ReceiveMessageOverlappedAsyncResult#" + LoggingHash.HashString(this) + "::LogBuffer()|Logging is off!");
}
SocketsEventSource.Dump(_wsaBuffer->Pointer, Math.Min(_wsaBuffer->Length, size));
}
internal void GetConnection()
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Enter("ConnectAndHandshakeAsyncResult#" + LoggingHash.HashString(this) + "::Connect:");
}
if (_connection._isConnected)
{
throw new InvalidOperationException(SR.SmtpAlreadyConnected);
}
InitializeConnection();
}
public unsafe SafeNativeOverlapped(SafeCloseSocket socketHandle, NativeOverlapped *handle)
: this((IntPtr)handle)
{
SocketHandle = socketHandle;
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("SafeNativeOverlapped#" + LoggingHash.HashString(this) + "::ctor(socket#" + LoggingHash.HashString(socketHandle) + ")");
}
#if DEBUG
SocketHandle.AddRef();
#endif
}
protected override bool ReleaseHandle()
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("SafeNativeOverlapped#" + LoggingHash.HashString(this) + "::ReleaseHandle()");
}
FreeNativeOverlapped();
#if DEBUG
SocketHandle.Release();
#endif
return(true);
}
internal ChannelBinding GetChannelBinding(ChannelBindingKind kind)
{
GlobalLog.Enter("SecureChannel#" + LoggingHash.HashString(this) + "::GetChannelBindingToken", kind.ToString());
ChannelBinding result = null;
if (_securityContext != null)
{
result = SslStreamPal.QueryContextChannelBinding(_securityContext, kind);
}
GlobalLog.Leave("SecureChannel#" + LoggingHash.HashString(this) + "::GetChannelBindingToken", LoggingHash.HashString(result));
return(result);
}
internal void CloseAsIs()
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Print(
"SafeCloseSocket#" + LoggingHash.HashString(this) + "::CloseAsIs() m_InnerSocket=" +
_innerSocket == null ? "null" : LoggingHash.HashString(_innerSocket));
}
#if DEBUG
// If this throws it could be very bad.
try
{
#endif
InnerSafeCloseSocket innerSocket = _innerSocket == null ? null : Interlocked.Exchange <InnerSafeCloseSocket>(ref _innerSocket, null);
Dispose();
if (innerSocket != null)
{
// Wait until it's safe.
SpinWait sw = new SpinWait();
while (!_released)
{
sw.SpinOnce();
}
// Now free it with blocking.
innerSocket.BlockingRelease();
}
InnerReleaseHandle();
#if DEBUG
}
catch (Exception exception)
{
if (!ExceptionCheck.IsFatal(exception))
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Assert("SafeCloseSocket::CloseAsIs(handle:" + handle.ToString("x") + ")", exception.Message);
}
Debug.Fail("SafeCloseSocket::CloseAsIs(handle:" + handle.ToString("x") + ")", exception.Message);
}
throw;
}
#endif
}
private void SendMailCallback(IAsyncResult result)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Enter("SmtpClient#" + LoggingHash.HashString(this) + "::SendMailCallback");
}
try
{
_writer = _transport.EndSendMail(result);
// If some recipients failed but not others, send the e-mail anyways, but then return the
// "Non-fatal" exception reporting the failures. The sync code path does it this way.
// Fatal exceptions would have thrown above at transport.EndSendMail(...)
SendMailAsyncResult sendResult = (SendMailAsyncResult)result;
// Save these and throw them later in SendMessageCallback, after the message has sent.
_failedRecipientException = sendResult.GetFailedRecipientException();
}
catch (Exception e)
{
Complete(e, result);
if (GlobalLog.IsEnabled)
{
GlobalLog.Leave("SmtpClient#" + LoggingHash.HashString(this) + "::SendMailCallback");
}
return;
}
try
{
if (_cancelled)
{
Complete(null, result);
}
else
{
_message.BeginSend(_writer, DeliveryMethod != SmtpDeliveryMethod.Network,
ServerSupportsEai, new AsyncCallback(SendMessageCallback), result.AsyncState);
}
}
catch (Exception e)
{
Complete(e, result);
}
if (GlobalLog.IsEnabled)
{
GlobalLog.Leave("SmtpClient#" + LoggingHash.HashString(this) + "::SendMailCallback");
}
}
//
internal ProtocolToken NextMessage(byte[] incoming, int offset, int count)
{
GlobalLog.Enter("SecureChannel#" + LoggingHash.HashString(this) + "::NextMessage");
byte[] nextmsg = null;
SecurityStatusPal errorCode = GenerateToken(incoming, offset, count, ref nextmsg);
if (!_serverMode && errorCode == SecurityStatusPal.CredentialsNeeded)
{
GlobalLog.Print("SecureChannel#" + LoggingHash.HashString(this) + "::NextMessage() returned SecurityStatusPal.CredentialsNeeded");
SetRefreshCredentialNeeded();
errorCode = GenerateToken(incoming, offset, count, ref nextmsg);
}
ProtocolToken token = new ProtocolToken(nextmsg, errorCode);
GlobalLog.Leave("SecureChannel#" + LoggingHash.HashString(this) + "::NextMessage", token.ToString());
return(token);
}
internal void EndGetConnection(IAsyncResult result)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Enter("SmtpTransport#" + LoggingHash.HashString(this) + "::EndGetConnection");
}
try
{
_connection.EndGetConnection(result);
}
finally
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Leave("SmtpTransport#" + LoggingHash.HashString(this) + "::EndConnect");
}
}
}
// Binds the Socket Win32 Handle to the ThreadPool's CompletionPort.
public ThreadPoolBoundHandle GetOrAllocateThreadPoolBoundHandle()
{
if (_released)
{
// Keep the exception message pointing at the external type.
throw new ObjectDisposedException(typeof(Socket).FullName);
}
// Check to see if the socket native _handle is already
// bound to the ThreadPool's completion port.
if (_iocpBoundHandle == null)
{
lock (_iocpBindingLock)
{
if (_iocpBoundHandle == null)
{
// Bind the socket native _handle to the ThreadPool.
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("SafeCloseSocket#" + LoggingHash.HashString(this) + "::BindToCompletionPort() calling ThreadPool.BindHandle()");
}
try
{
// The handle (this) may have been already released:
// E.g.: The socket has been disposed in the main thread. A completion callback may
// attempt starting another operation.
_iocpBoundHandle = ThreadPoolBoundHandle.BindHandle(this);
}
catch (Exception exception)
{
if (ExceptionCheck.IsFatal(exception))
{
throw;
}
CloseAsIs();
throw;
}
}
}
}
return(_iocpBoundHandle);
}
private static void ConnectionCreatedCallback(object request, object state)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Enter("ConnectAndHandshakeAsyncResult#" + LoggingHash.HashString(request) + "::ConnectionCreatedCallback");
}
ConnectAndHandshakeAsyncResult ConnectAndHandshakeAsyncResult = (ConnectAndHandshakeAsyncResult)request;
if (state is Exception)
{
ConnectAndHandshakeAsyncResult.InvokeCallback((Exception)state);
return;
}
try
{
lock (ConnectAndHandshakeAsyncResult._connection)
{
//if we were cancelled while getting the connection, we should close and return
if (ConnectAndHandshakeAsyncResult._connection._isClosed)
{
ConnectAndHandshakeAsyncResult._connection.ReleaseConnection();
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("ConnectAndHandshakeAsyncResult#" + LoggingHash.HashString(request) + "::ConnectionCreatedCallback Connect was aborted ");
}
ConnectAndHandshakeAsyncResult.InvokeCallback(null);
return;
}
}
ConnectAndHandshakeAsyncResult.Handshake();
}
catch (Exception e)
{
ConnectAndHandshakeAsyncResult.InvokeCallback(e);
}
if (GlobalLog.IsEnabled)
{
GlobalLog.Leave("ConnectAndHandshakeAsyncResult#" + LoggingHash.HashString(request) + "::ConnectionCreatedCallback");
}
}
private Authorization SetContextAndTryAuthenticate(ISmtpAuthenticationModule module, NetworkCredential credential, ContextAwareResult context)
{
// We may need to restore user thread token here
if (ReferenceEquals(credential, CredentialCache.DefaultNetworkCredentials))
{
#if DEBUG
if (context != null && !context.IdentityRequested)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.AssertFormat("SmtpConnection#{0}::SetContextAndTryAuthenticate|Authentication required when it wasn't expected. (Maybe Credentials was changed on another thread?)", LoggingHash.HashString(this));
}
Debug.Fail("SmtpConnection#" + LoggingHash.HashString(this) + "::SetContextAndTryAuthenticate|Authentication required when it wasn't expected. (Maybe Credentials was changed on another thread?)");
}
#endif
try
{
ExecutionContext x = context == null ? null : context.ContextCopy;
if (x != null)
{
AuthenticateCallbackContext authenticationContext =
new AuthenticateCallbackContext(this, module, credential, _client.TargetName, _channelBindingToken);
ExecutionContext.Run(x, s_AuthenticateCallback, authenticationContext);
return(authenticationContext._result);
}
else
{
return(module.Authenticate(null, credential, this, _client.TargetName, _channelBindingToken));
}
}
catch
{
// Prevent the impersonation from leaking to upstack exception filters.
throw;
}
}
return(module.Authenticate(null, credential, this, _client.TargetName, _channelBindingToken));
}
internal SecurityStatusPal Decrypt(byte[] payload, ref int offset, ref int count)
{
GlobalLog.Print("SecureChannel#" + LoggingHash.HashString(this) + "::Decrypt() - offset: " + offset.ToString() + " size: " + count.ToString() + " buffersize: " + payload.Length.ToString());
if (offset < 0 || offset > (payload == null ? 0 : payload.Length))
{
GlobalLog.Assert(false, "SecureChannel#" + LoggingHash.HashString(this) + "::Encrypt", "Argument 'offset' out of range.");
throw new ArgumentOutOfRangeException("offset");
}
if (count < 0 || count > (payload == null ? 0 : payload.Length - offset))
{
GlobalLog.Assert(false, "SecureChannel#" + LoggingHash.HashString(this) + "::Encrypt", "Argument 'count' out of range.");
throw new ArgumentOutOfRangeException("count");
}
SecurityStatusPal secStatus = SslStreamPal.DecryptMessage(_securityContext, payload, ref offset, ref count);
return(secStatus);
}
private static void InitializeConnectionCallback(IAsyncResult result)
{
if (!result.CompletedSynchronously)
{
ConnectAndHandshakeAsyncResult thisPtr = (ConnectAndHandshakeAsyncResult)result.AsyncState;
thisPtr._connection.EndInitializeConnection(result);
if (GlobalLog.IsEnabled)
{
GlobalLog.Print("ConnectAndHandshakeAsyncResult#" + LoggingHash.HashString(thisPtr) + "::Connect returned" + LoggingHash.HashString(thisPtr));
}
try
{
thisPtr.Handshake();
}
catch (Exception e)
{
thisPtr.InvokeCallback(e);
}
}
}
private void SendMessageCallback(IAsyncResult result)
{
if (GlobalLog.IsEnabled)
{
GlobalLog.Enter("SmtpClient#" + LoggingHash.HashString(this) + "::SendMessageCallback");
}
try
{
_message.EndSend(result);
// If some recipients failed but not others, throw AFTER sending the message.
Complete(_failedRecipientException, result);
}
catch (Exception e)
{
Complete(e, result);
}
if (GlobalLog.IsEnabled)
{
GlobalLog.Leave("SmtpClient#" + LoggingHash.HashString(this) + "::SendMessageCallback");
}
}