syntax = "proto3";

//**************************************************************************
// TR-369 USP Record Protocol Buffer Schema
//
//  Copyright (c) 2017-2018, Broadband Forum
//
//  The undersigned members have elected to grant the copyright to
//  their contributed material used in this software:
//    Copyright (c) 2017-2018 ARRIS Enterprises, LLC.
//
//  Redistribution and use in source and binary forms, with or
//   without modification, are permitted provided that the following
//   conditions are met:
//
//   1. Redistributions of source code must retain the above copyright
//      notice, this list of conditions and the following disclaimer.
//
//   2. Redistributions in binary form must reproduce the above
//      copyright notice, this list of conditions and the following
//      disclaimer in the documentation and/or other materials
//      provided with the distribution.
//
//   3. Neither the name of the copyright holder nor the names of its
//      contributors may be used to endorse or promote products
//      derived from this software without specific prior written
//      permission.
//
//   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
//   CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
//   INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
//   MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
//   DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
//   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
//   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
//   NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
//   LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
//   CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
//   STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
//   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
//   ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
//   The above license is used as a license under copyright only.
//   Please reference the Forum IPR Policy for patent licensing terms
//   <https://www.broadband-forum.org/ipr-policy>.
//
//   Any moral rights which are necessary to exercise under the above
//   license grant are also deemed granted under this license.
//
//
// | Version           | Name                   | Date       |
// | TR-369 1.0.0      | User Services Platform | APR, 2018  |
// | TR-369 1.0.1      | User Services Platform | JUN, 2018  |
// | TR-369 1.0.2      | User Services Platform | OCT, 2018  |
// | TR-369 1.1        | User Services Platform | SEP, 2019  |
//
// BBF software release registry: http://www.broadband-forum.org/software
//**************************************************************************

package usp_record;

option go_package="./usp-record";

message Record {
  string version = 1;
  string to_id = 2;
  string from_id = 3;
  PayloadSecurity payload_security = 4;
  bytes mac_signature = 5;  //MAC or Signature
  bytes sender_cert = 6;

  oneof record_type {
    NoSessionContextRecord no_session_context = 7;
    SessionContextRecord session_context = 8;
    WebSocketConnectRecord websocket_connect = 9;
    MQTTConnectRecord mqtt_connect = 10;
    STOMPConnectRecord stomp_connect = 11;
    DisconnectRecord disconnect = 12;
  }

  enum PayloadSecurity {
    PLAINTEXT = 0;
    TLS12 = 1;
  }
}

message NoSessionContextRecord {
  bytes payload = 2;
}

message SessionContextRecord {
  uint64 session_id = 1;
  uint64 sequence_id = 2;
  uint64 expected_id = 3;
  uint64 retransmit_id = 4;
  PayloadSARState payload_sar_state = 5;
  PayloadSARState payloadrec_sar_state = 6;
  repeated bytes payload = 7;

  enum PayloadSARState {
    NONE = 0; 	    //No segmentation
    BEGIN = 1;      //Begin segmentation
    INPROCESS = 2;  //Segmentation in process
    COMPLETE = 3;   //Segmentation is complete
  }
}

message WebSocketConnectRecord {
  // An empty message
}

message MQTTConnectRecord {
  MQTTVersion version = 1;
  string subscribed_topic = 2;

  enum MQTTVersion {
    V3_1_1 = 0;  // Represents MQTT v3.1.1, a.k.a. v4 in the MQTT Spec
    V5 = 1;
  }
}

message STOMPConnectRecord {
  STOMPVersion version = 1;
  string subscribed_destination = 2;

  enum STOMPVersion {
    V1_2 = 0;
  }
}

message DisconnectRecord {
  string reason = 1;
  fixed32 reason_code = 2;
}