public void ServerData(object sender, BytesSegment bs)
{
if (serverDone || bs.Len == 0)
{
return;
}
serverDone = true;
if (sBuf != null)
{
bs.CopyTo(sBuf, 0, bs.Len, sProg);
sProg += bs.Len;
if (sProg < sBuf.Length)
{
goto CONTINUE_READ;
}
else
{
bs = new BytesSegment(sBuf, 0, sProg);
}
}
if (Tls.Version != 0)
{
var hello = new TlsStream.ServerHello();
try {
TlsStream.ParseServerHelloRecord(bs, ref hello, out var size);
if (size > bs.Len)
{
if (sBuf != null)
{
throw new Exception("sBuf != null");
}
sBuf = new byte[size];
bs.CopyTo(sBuf);
sProg = bs.Len;
goto CONTINUE_READ;
}
} catch (Exception e) {
if (hello.Version != 0)
{
TlsError = true;
Logging.exception(e, Logging.Level.Warning, "parsing tls server hello from " + sender);
}
}
Tls.Version = Math.Min(Tls.Version, hello.Version);
Tls.Alpn = hello.Alpn;
}
sBuf = null;
return;
CONTINUE_READ:
serverDone = false;
return;
}