/*
 * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; version 2 of the
 * License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301  USA
 */
syntax = "proto2";

// ifdef PROTOBUF_LITE: option optimize_for = LITE_RUNTIME;

// Messages to manage Sessions
//
// .. uml::
//
//   == session start ==
//   Client -> Server: AuthenticateStart
//   opt
//   Server --> Client: AuthenticateContinue
//   Client --> Server: AuthenticateContinue
//   end
//   alt
//   Server --> Client: AuthenticateOk
//   else
//   Server --> Client: Error
//   end
//   ...
//   == session reset ==
//   Client -> Server: Reset
//   Server --> Client: Ok
//   == session end ==
//   Client -> Server: Close
//   Server --> Client: Ok
//
package Polarx.Session;
option java_package = "com.mysql.cj.polarx.protobuf";

// the initial message send from the client to the server to start the
// authentication proccess
//
// :param mech_name: authentication mechanism name
// :param auth_data: authentication data
// :param initial_response: initial response
// :Returns: :protobuf:msg:`Polarx.Session::AuthenticateContinue`
message AuthenticateStart {
  required string mech_name = 1;
  optional bytes auth_data = 2;
  optional bytes initial_response = 3;
}

// send by client or server after a :protobuf:msg:`Polarx.Session::AuthenticateStart` to
// exchange more auth data
//
// :param auth_data: authentication data
// :Returns: :protobuf:msg:`Polarx.Session::AuthenticateContinue`
message AuthenticateContinue {
  required bytes auth_data = 1;
}

// sent by the server after successful authentication
//
// :param auth_data: authentication data
message AuthenticateOk {
  optional bytes auth_data = 1;
}

message NewSession {
}

message KillSession {
  enum KillType {
    QUERY = 1;
    CONNECTION = 2;
  }
  required KillType type = 1;
  required uint64 x_session_id = 2;
}

// reset the current session
//
// :Returns: :protobuf:msg:`Polarx::Ok`
message Reset {
}

// close the current session
//
// :Returns: :protobuf:msg:`Polarx::Ok`
message Close {
}