/*
 * Copyright (C) 2020 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
syntax = "proto2";

package com.google.carrier;

option java_multiple_files = true;
option java_outer_classname = "CarrierSettingsProtos";

// Settings of one carrier, including apns and configs
// This is the payload to be delivered from server
message CarrierSettings {
  // A unique canonical carrier name
  optional string canonical_name = 1;

  // Version number of current carrier’s settings
  optional int64 version = 2;

  // Carrier APNs
  optional CarrierApns apns = 3;

  // Carrier configs
  optional CarrierConfig configs = 4;

  reserved 5;

  // Vendor carrier configs
  optional VendorConfigs vendor_configs = 6;
}

// A collection of multiple carriers’ settings
message MultiCarrierSettings {
  // Version number
  optional int64 version = 1;

  // List of CarrierSettings
  repeated CarrierSettings setting = 2;
}

// An access point name (aka. APN) entry
message ApnItem {
  // The name of APN, map to xml apn "carrier" attribute
  // eg. Verizon Internet, may visible to user in Settings
  optional string name = 1;
  // The value of APN, eg. send to modem for data call. map to xml
  // "apn" attribute, eg. vzwinternet
  optional string value = 2;

  // Next two fields type and bearer_bitmask affect how APN is selected by
  // platform. eg. type means APN capability and bearer_bitmask specifies
  // which RATs apply.
  // Note mcc/mnc and mvno data doesn't belong to this proto because they
  // define a carrier.
  // APN types as defined in Android code PhoneConstants.java
  enum ApnType {
    ALL = 0;      // this APN can serve all kinds of data connections
    DEFAULT = 1;  // internet data
    MMS = 2;
    SUPL = 3;
    DUN = 4;
    HIPRI = 5;
    FOTA = 6;
    IMS = 7;
    CBS = 8;
    IA = 9;  // Initial attach
    EMERGENCY = 10;
    XCAP = 11;
    UT = 12;
    RCS = 13;
  }
  repeated ApnType type = 3;

  // Network types that this APN applies to, separated by "|". A network type
  // is represented as an integer defined in TelephonyManager.NETWORK_TYPE_*.
  // Default value "0" means all network types.
  optional string bearer_bitmask = 4 [default = "0"];

  // Below are all parameters for the APN
  // APN server / auth parameters.
  optional string server = 5;
  optional string proxy = 6;
  optional string port = 7;
  optional string user = 8;
  optional string password = 9;
  optional int32 authtype = 10 [default = -1];

  // MMS configuration.
  optional string mmsc = 11;
  optional string mmsc_proxy = 12;
  optional string mmsc_proxy_port = 13;

  // Protocols allowed to connect to the APN.
  enum Protocol {
    IP = 0;
    IPV6 = 1;
    IPV4V6 = 2;
    PPP = 3;
  }
  optional Protocol protocol = 14 [default = IP];
  optional Protocol roaming_protocol = 15 [default = IP];

  // MTU for the connections.
  optional int32 mtu = 16 [default = 0];
  // An ID used to sync the APN in modem.
  optional int32 profile_id = 17;
  // Max connections.
  optional int32 max_conns = 18 [default = 0];
  // The wait time required between disconnecting and connecting, in seconds.
  optional int32 wait_time = 19 [default = 0];
  // The time to limit max connection, in seconds.
  optional int32 max_conns_time = 20 [default = 0];
  reserved 21;
  // Whether to be persisted to modem.
  optional bool modem_cognitive = 22 [default = false];
  // Whether visible in APN settings.
  optional bool user_visible = 23 [default = true];
  // Whether editable in APN settings.
  optional bool user_editable = 24 [default = true];

  // If > 0: when an APN becomes a preferred APN on user/framework
  // selection, other APNs with the same apn_set_id will also be preferred
  // by framework when selecting APNs.
  optional int32 apn_set_id = 25 [default = 0];

  // The skip 464xlat flag. Flag works as follows.
  // SKIP_464XLAT_DEFAULT: the APN will skip 464xlat only if the APN has type
  //                       IMS and does not support INTERNET which has type
  //                       DEFAULT or HIPRI.
  // SKIP_464XLAT_DISABLE: the APN will NOT skip 464xlat
  // SKIP_464XLAT_ENABLE: the APN will skip 464xlat
  enum Xlat {
    SKIP_464XLAT_DEFAULT = 0;
    SKIP_464XLAT_DISABLE = 1;
    SKIP_464XLAT_ENABLE = 2;
  }
  optional Xlat skip_464xlat = 26 [default = SKIP_464XLAT_DEFAULT];
}

// A collection of all APNs for a carrier
message CarrierApns {
  reserved 1;

  // APNs belong to this carrier
  repeated ApnItem apn = 2;
}

// An array of text
message TextArray {
  repeated string item = 1;
}

// An array of int
message IntArray {
  repeated int32 item = 1;
}

// Carrier configs
message CarrierConfig {
  reserved 1, 3;

  // Key-Value pair as a config entry
  message Config {
    optional string key = 1;

    oneof value {
      string text_value = 2;
      int32 int_value = 3;
      int64 long_value = 4;
      bool bool_value = 5;
      TextArray text_array = 6;
      IntArray int_array = 7;
      CarrierConfig bundle = 8;
      double double_value = 9;
    }
  }

  // Key-value pairs, holding all config entries
  repeated Config config = 2;
}

// The configs of one vendor client.
message VendorConfigClient {
  // Name of the client for which the configuration items need to
  // be stored
  required string name = 1;

  // Binary blob containing the configuration. The format
  // of the configuration depends on the specific client.
  // For some clients, the proto representation of {@link VendorConfigData}
  // defined in vendorconfigdata.proto is used.
  optional bytes value = 2;

  // Range of extensions. The extensions from 100 to 1000 are reserved for
  // Google's internal usage.
  extensions 100 to 5000;
}

// A collection of configs from vendor clients.
message VendorConfigs {
  reserved 1;

  // Configuration
  repeated VendorConfigClient client = 2;
}