XXX Something should be done about the session ID here.

def tls_session_update(self, msg_str):
        """
        XXX Something should be done about the session ID here.
        """
        super(SSLv2ServerHello, self).tls_session_update(msg_str)

        s = self.tls_session
        client_cs = s.sslv2_common_cs
        css = [cs for cs in client_cs if cs in self.ciphers]
        s.sslv2_common_cs = css
        s.sslv2_connection_id = self.connection_id
        s.tls_version = self.version
        if self.cert is not None:
            s.server_certs = [self.cert]