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96 lines
3.4 KiB
96 lines
3.4 KiB
// |
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// Copyright (C) 2015 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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// This module abstracts the properties tied to the current running image. These |
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// properties are meant to be constant during the life of this daemon, but can |
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// be modified in dev-move or non-official builds. |
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#ifndef UPDATE_ENGINE_IMAGE_PROPERTIES_H_ |
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#define UPDATE_ENGINE_IMAGE_PROPERTIES_H_ |
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#include <string> |
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namespace chromeos_update_engine { |
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class SystemState; |
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// The read-only system properties of the running image. |
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struct ImageProperties { |
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// The product id of the image used for all channels, except canary. |
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std::string product_id; |
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// The canary-channel product id. |
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std::string canary_product_id; |
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// The system id for the Android Things SoM, empty for Chrome OS. |
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std::string system_id; |
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// The product version of this image. |
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std::string version; |
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// The system version of this image. |
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std::string system_version; |
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// A unique string that identifies this build. Normally a combination of the |
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// the version, signing keys and build target. |
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std::string build_fingerprint; |
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// The Android build type, should be either 'user', 'userdebug' or 'eng'. |
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// It's empty string on other platform. |
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std::string build_type; |
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// The board name this image was built for. |
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std::string board; |
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// The release channel this image was obtained from. |
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std::string current_channel; |
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// The Omaha URL this image should get updates from. |
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std::string omaha_url; |
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}; |
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// The mutable image properties are read-write image properties, initialized |
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// with values from the image but can be modified by storing them in the |
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// stateful partition. |
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struct MutableImageProperties { |
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// The release channel we are tracking. |
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std::string target_channel; |
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// Whether powerwash is allowed when downloading an update for the selected |
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// target_channel. |
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bool is_powerwash_allowed{false}; |
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}; |
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// Loads all the image properties from the running system. In case of error |
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// loading any of these properties from the read-only system image a default |
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// value may be returned instead. |
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ImageProperties LoadImageProperties(SystemState* system_state); |
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// Loads the mutable image properties from the stateful partition if found or the |
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// system image otherwise. |
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MutableImageProperties LoadMutableImageProperties(SystemState* system_state); |
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// Stores the mutable image properties in the stateful partition. Returns |
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// whether the operation succeeded. |
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bool StoreMutableImageProperties(SystemState* system_state, |
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const MutableImageProperties& properties); |
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// Sets the root_prefix used to load files from during unittests to |
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// |test_root_prefix|. Passing a nullptr value resets it to the default. |
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namespace test { |
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void SetImagePropertiesRootPrefix(const char* test_root_prefix); |
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} // namespace test |
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} // namespace chromeos_update_engine |
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#endif // UPDATE_ENGINE_IMAGE_PROPERTIES_H_
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