// Copyright 2019 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

syntax = "proto3";

option optimize_for = LITE_RUNTIME;
option go_package = "chromiumos/system_api/update_engine_proto";

package update_engine;

// Keep in sync with:
// update_engine/client_library/include/update_engine/update_status.h
enum Operation {
  IDLE = 0;
  CHECKING_FOR_UPDATE = 1;
  UPDATE_AVAILABLE = 2;
  DOWNLOADING = 3;
  VERIFYING = 4;
  FINALIZING = 5;
  UPDATED_NEED_REBOOT = 6;
  REPORTING_ERROR_EVENT = 7;
  ATTEMPTING_ROLLBACK = 8;
  DISABLED = 9;
  NEED_PERMISSION_TO_UPDATE = 10;
  CLEANUP_PREVIOUS_UPDATE = 11;
  UPDATED_BUT_DEFERRED = 12;

  // ERROR is only used by Chrome and update_engine doesn't really use/set this
  // value as it is not the proper way to propagate errors. DO NOT use this
  // anywhere other than Chrome.
  // TODO(crbug.com/977320): Remove this from Chrome.
  ERROR = -1;
}

// Keep in sync with:
// update_engine/client_library/include/update_engine/update_status.h
enum UpdateUrgency {
  REGULAR = 0;
  CRITICAL = 1;
}

enum UpdateDoneAction {
  REBOOT = 0;
  SHUTDOWN = 1;
}

// This is the message transferred from other processes to update_engine for
// configuring the behavior of applying the deferred update.
message ApplyUpdateConfig {
  // The action to take after applying the deferred update.
  UpdateDoneAction done_action = 1;
}

message Feature {
  // The name of the feature.
  string name = 1;

  // Whether the feature is enabled or not.
  bool enabled = 2;
}

// This is the message transferred between update_engine and other processes
// about the current status of the update_engine. It is used either in
// |GetUpdateStatusAdvanced| DBus method or |StatusUpdateAdvanced| signal.
//
// NOTE: Keep this updated with:
// update_engine/client_library/include/update_engine/update_status.h
message StatusResult {
  // When the update_engine last checked for updates (time_t: seconds from Unix
  // epoch).
  int64 last_checked_time = 1;

  // The current progress (0.0f-1.0f).
  double progress = 2;

  // The current status/operation of the update_engine.
  Operation current_operation = 3;

  // The new product version.
  string new_version = 4;

  // The size of the update payload (bytes).
  int64 new_size = 5;

  // Whether the update is actually an enterprise rollback. The value is valid
  // only if the current_operation is passed |CHECKING_FOR_UPDATE|.
  bool is_enterprise_rollback = 6;

  // Indication of install for DLC(s).
  bool is_install = 7;

  // The end-of-life date of the device in the number of days since Unix Epoch.
  int64 eol_date = 8;

  // If true, the system will powerwash once the update is applied and the
  // system is rebooted. This value is reliable on |UPDATE_NEED_REBOOT|.
  bool will_powerwash_after_reboot = 9;

  // The last update/install attempt error.
  // Reference update_engine/dbus-constants.h for the errors that update_engine
  // will propagate into this field.
  int32 last_attempt_error = 10;

  // If true, the update is critical. DEPRECATED.
  // bool critical_update = 11;

  // Indicates how important an update is.
  UpdateUrgency update_urgency = 12;

  // List of features managed by update_engine.
  repeated Feature features = 13;

  // Whether the update is interactive.
  bool is_interactive = 14;

  // If true, the update will be downloaded but deferred.
  bool will_defer_update = 15;
}

// This is the message flags that influences how updates are performed.
message UpdateFlags {
  // Indicates if the update is interactive or not.
  bool non_interactive = 1;
}

// This is the message transferred into update_engine to perform updates in a
// certain manner.
message UpdateParams {
  // Version to update to. An empty string indicates that update engine should
  // pick the most recent image on the current channel.
  string app_version = 1;

  // The omaha URL to force. Usually leave empty.
  // Force update engine to look for updates from the given server. An empty
  // string indicates update engine should get this parameter from the release
  // file. This field will be ignored in production builds for security.
  string omaha_url = 2;

  // Additional fields that update_engine keeps track of during update requests.
  UpdateFlags update_flags = 3;

  // Checks for an update, but does not apply it.
  bool skip_applying = 4;

  // Forces a fw update with OS update.
  bool force_fw_update = 5;
}

message InstallParams {
  // ID of the DLC to install.
  string id = 1;

  // The Omaha URL to use. See `UpdateParams::omaha_url` for details.
  string omaha_url = 2;

  // Boolean indicating whether or not the DLC is scaled.
  bool scaled = 3;

  // Boolean indicating forced OTA installations.
  bool force_ota = 4;
}
