private void HandleAuthChange(MySqlPacket packet)
{
byte b = packet.ReadByte();
Debug.Assert(b == 0xfe);
string method = packet.ReadString();
byte[] authData = new byte[packet.Length - packet.Position];
Array.Copy(packet.Buffer, packet.Position, authData, 0, authData.Length);
MySqlAuthenticationPlugin plugin = MySqlAuthenticationPlugin.GetPlugin(method, driver, authData);
plugin.ContinueAuthentication();
}