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195 lines
8.2 KiB
195 lines
8.2 KiB
//
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// Copyright (C) 2010 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#ifndef UPDATE_ENGINE_CROS_DBUS_SERVICE_H_
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#define UPDATE_ENGINE_CROS_DBUS_SERVICE_H_
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#include <inttypes.h>
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#include <memory>
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#include <string>
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#include <vector>
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#include <base/memory/ref_counted.h>
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#include <brillo/errors/error.h>
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#include <update_engine/proto_bindings/update_engine.pb.h>
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#include "update_engine/common/service_observer_interface.h"
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#include "update_engine/cros/common_service.h"
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#include "update_engine/cros/update_attempter.h"
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#include "dbus_bindings/org.chromium.UpdateEngineInterface.h"
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namespace chromeos_update_engine {
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class DBusUpdateEngineService
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: public org::chromium::UpdateEngineInterfaceInterface {
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public:
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DBusUpdateEngineService();
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virtual ~DBusUpdateEngineService() = default;
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// Implementation of org::chromium::UpdateEngineInterfaceInterface.
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bool AttemptUpdate(brillo::ErrorPtr* error,
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const std::string& in_app_version,
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const std::string& in_omaha_url) override;
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bool AttemptUpdateWithFlags(brillo::ErrorPtr* error,
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const std::string& in_app_version,
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const std::string& in_omaha_url,
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int32_t in_flags_as_int) override;
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bool AttemptInstall(brillo::ErrorPtr* error,
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const std::string& in_omaha_url,
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const std::vector<std::string>& dlc_ids) override;
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bool AttemptRollback(brillo::ErrorPtr* error, bool in_powerwash) override;
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// Checks if the system rollback is available by verifying if the secondary
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// system partition is valid and bootable.
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bool CanRollback(brillo::ErrorPtr* error, bool* out_can_rollback) override;
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// Resets the status of the update_engine to idle, ignoring any applied
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// update. This is used for development only.
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bool ResetStatus(brillo::ErrorPtr* error) override;
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// Sets the DLC as active or inactive. When set to active, the ping metadata
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// for the DLC is updated accordingly. When set to inactive, the metadata
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// for the DLC is deleted.
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bool SetDlcActiveValue(brillo::ErrorPtr* error,
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bool is_active,
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const std::string& dlc_id) override;
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// Similar to Above, but returns a protobuffer instead. In the future it will
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// have more features and is easily extendable.
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bool GetStatusAdvanced(brillo::ErrorPtr* error,
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update_engine::StatusResult* out_status) override;
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// Reboots the device if an update is applied and a reboot is required.
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bool RebootIfNeeded(brillo::ErrorPtr* error) override;
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// Changes the current channel of the device to the target channel. If the
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// target channel is a less stable channel than the current channel, then the
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// channel change happens immediately (at the next update check). If the
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// target channel is a more stable channel, then if is_powerwash_allowed is
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// set to true, then also the change happens immediately but with a powerwash
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// if required. Otherwise, the change takes effect eventually (when the
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// version on the target channel goes above the version number of what the
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// device currently has).
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bool SetChannel(brillo::ErrorPtr* error,
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const std::string& in_target_channel,
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bool in_is_powerwash_allowed) override;
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// If get_current_channel is set to true, populates |channel| with the name of
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// the channel that the device is currently on. Otherwise, it populates it
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// with the name of the channel the device is supposed to be (in case of a
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// pending channel change).
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bool GetChannel(brillo::ErrorPtr* error,
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bool in_get_current_channel,
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std::string* out_channel) override;
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bool SetCohortHint(brillo::ErrorPtr* error,
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const std::string& in_cohort_hint) override;
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bool GetCohortHint(brillo::ErrorPtr* error,
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std::string* out_cohort_hint) override;
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// Enables or disables the sharing and consuming updates over P2P feature
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// according to the |enabled| argument passed.
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bool SetP2PUpdatePermission(brillo::ErrorPtr* error,
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bool in_enabled) override;
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// Returns the current value for the P2P enabled setting. This involves both
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// sharing and consuming updates over P2P.
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bool GetP2PUpdatePermission(brillo::ErrorPtr* error,
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bool* out_enabled) override;
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// If there's no device policy installed, sets the update over cellular
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// networks permission to the |allowed| value. Otherwise, this method returns
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// with an error since this setting is overridden by the applied policy.
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bool SetUpdateOverCellularPermission(brillo::ErrorPtr* error,
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bool in_allowed) override;
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// If there's no device policy installed, sets the update over cellular
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// target. Otherwise, this method returns with an error.
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bool SetUpdateOverCellularTarget(brillo::ErrorPtr* error,
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const std::string& target_version,
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int64_t target_size) override;
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// Returns the current value of the update over cellular network setting,
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// either forced by the device policy if the device is enrolled or the current
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// user preference otherwise.
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bool GetUpdateOverCellularPermission(brillo::ErrorPtr* error,
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bool* out_allowed) override;
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// Returns the duration since the last successful update, as the
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// duration on the wallclock. Returns an error if the device has not
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// updated.
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bool GetDurationSinceUpdate(brillo::ErrorPtr* error,
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int64_t* out_usec_wallclock) override;
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// Returns the version string of OS that was used before the last reboot
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// into an updated version. This is available only when rebooting into an
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// update from previous version, otherwise an empty string is returned.
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bool GetPrevVersion(brillo::ErrorPtr* error,
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std::string* out_prev_version) override;
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// Returns the name of kernel partition that can be rolled back into.
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bool GetRollbackPartition(brillo::ErrorPtr* error,
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std::string* out_rollback_partition_name) override;
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// Returns the last UpdateAttempt error. If not updated yet, default success
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// ErrorCode will be returned.
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bool GetLastAttemptError(brillo::ErrorPtr* error,
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int32_t* out_last_attempt_error) override;
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private:
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std::unique_ptr<UpdateEngineService> common_;
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};
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// The UpdateEngineAdaptor class runs the UpdateEngineInterface in the fixed
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// object path, without an ObjectManager notifying the interfaces, since it is
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// all static and clients don't expect it to be implemented.
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class UpdateEngineAdaptor : public org::chromium::UpdateEngineInterfaceAdaptor,
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public ServiceObserverInterface {
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public:
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UpdateEngineAdaptor();
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~UpdateEngineAdaptor() = default;
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// Register the DBus object with the update engine service asynchronously.
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// Calls |copmletion_callback| when done passing a boolean indicating if the
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// registration succeeded.
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void RegisterAsync(const base::Callback<void(bool)>& completion_callback);
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// Takes ownership of the well-known DBus name and returns whether it
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// succeeded.
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bool RequestOwnership();
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// ServiceObserverInterface overrides.
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void SendStatusUpdate(
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const update_engine::UpdateEngineStatus& update_engine_status) override;
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void SendPayloadApplicationComplete(ErrorCode error_code) override {}
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private:
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scoped_refptr<dbus::Bus> bus_;
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DBusUpdateEngineService dbus_service_;
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brillo::dbus_utils::DBusObject dbus_object_;
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};
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} // namespace chromeos_update_engine
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#endif // UPDATE_ENGINE_CROS_DBUS_SERVICE_H_
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