public override int Write(byte[] buffer, int offset, int size, out bool wantMore)
{
Debug("Write: {0} {1} {2}", buffer.Length, offset, size);
var data = Marshal.AllocHGlobal(size);
if (data == IntPtr.Zero)
{
throw new OutOfMemoryException();
}
try {
MonoBtlsError.ClearError();
Marshal.Copy(buffer, offset, data, size);
var status = ssl.Write(data, ref size);
Debug("Write done: {0} {1}", status, size);
if (status == MonoBtlsSslError.WantWrite)
{
wantMore = true;
return(0);
}
else if (status != MonoBtlsSslError.None)
{
throw GetException(status);
}
wantMore = false;
return(size);
} finally {
Marshal.FreeHGlobal(data);
}
}
static Exception GetException(MonoBtlsSslError status)
{
var error = MonoBtlsError.GetError();
var text = MonoBtlsError.GetErrorString(error);
return(new MonoBtlsException("{0} {1}", status, text));
}
static Exception GetException(MonoBtlsSslError status)
{
string file;
int line;
var error = MonoBtlsError.GetError(out file, out line);
if (error == 0)
{
return(new MonoBtlsException(status));
}
var reason = MonoBtlsError.GetErrorReason(error);
if (reason > 0)
{
return(new TlsException((AlertDescription)reason));
}
var text = MonoBtlsError.GetErrorString(error);
string message;
if (file != null)
{
message = string.Format("{0} {1}\n at {2}:{3}", status, text, file, line);
}
else
{
message = string.Format("{0} {1}", status, text);
}
return(new MonoBtlsException(message));
}
public override (int ret, bool wantMore) Read(byte[] buffer, int offset, int size)
{
Debug("Read: {0} {1} {2}", buffer.Length, offset, size);
var data = Marshal.AllocHGlobal(size);
if (data == IntPtr.Zero)
{
throw new OutOfMemoryException();
}
try {
MonoBtlsError.ClearError();
var status = ssl.Read(data, ref size);
Debug("Read done: {0} {1}", status, size);
if (status == MonoBtlsSslError.WantRead)
{
return(0, true);
}
if (status == MonoBtlsSslError.ZeroReturn)
{
return(size, false);
}
if (status != MonoBtlsSslError.None)
{
throw GetException(status);
}
if (size > 0)
{
Marshal.Copy(data, buffer, offset, size);
}
return(size, false);
} finally {
Marshal.FreeHGlobal(data);
}
}
public override bool ProcessHandshake()
{
var done = false;
while (!done)
{
Debug("ProcessHandshake");
MonoBtlsError.ClearError();
var status = DoProcessHandshake();
Debug("ProcessHandshake #1: {0}", status);
switch (status)
{
case MonoBtlsSslError.None:
if (connected)
{
done = true;
}
else
{
connected = true;
}
break;
case MonoBtlsSslError.WantRead:
case MonoBtlsSslError.WantWrite:
return(false);
default:
ctx.CheckLastError();
throw GetException(status);
}
}
ssl.PrintErrors();
return(true);
}
