6a2ca782d4
Adds registering and unregistering of FabricatedOverlay to the OMS. The process that creates the fabricated overlays owns it and is the only process allowed to unregister it. When a fabricated overlay is registered, overlay settings for it are initialized in all users. When a fabricated overlay is unregistered, it is disabled and removed from all users. When a new user is created, it will be able to use the fabricated overlay as well. On boot, fabricated overlays that are not referenced in overlay settings will be deleted. When the package that created the fabricated overlay is uninstalled, its fabricated overlays are also unregistered. Bug: 172471315 Test: atest OverlayDeviceTests Change-Id: I0539656f4c919246b13129579b0286c08a398dc2
92 lines
3.4 KiB
C++
92 lines
3.4 KiB
C++
/*
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* Copyright (C) 2018 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 IDMAP2_IDMAP2D_IDMAP2SERVICE_H_
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#define IDMAP2_IDMAP2D_IDMAP2SERVICE_H_
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#include <android-base/unique_fd.h>
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#include <android/os/BnIdmap2.h>
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#include <android/os/FabricatedOverlayInfo.h>
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#include <binder/BinderService.h>
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#include <idmap2/ResourceContainer.h>
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#include <idmap2/Result.h>
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#include <string>
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namespace android::os {
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class Idmap2Service : public BinderService<Idmap2Service>, public BnIdmap2 {
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public:
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static char const* getServiceName() {
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return "idmap";
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}
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binder::Status getIdmapPath(const std::string& overlay_path, int32_t user_id,
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std::string* _aidl_return) override;
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binder::Status removeIdmap(const std::string& overlay_path, int32_t user_id,
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bool* _aidl_return) override;
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binder::Status verifyIdmap(const std::string& target_path, const std::string& overlay_path,
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const std::string& overlay_name, int32_t fulfilled_policies,
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bool enforce_overlayable, int32_t user_id,
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bool* _aidl_return) override;
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binder::Status createIdmap(const std::string& target_path, const std::string& overlay_path,
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const std::string& overlay_name, int32_t fulfilled_policies,
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bool enforce_overlayable, int32_t user_id,
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std::optional<std::string>* _aidl_return) override;
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binder::Status createFabricatedOverlay(
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const os::FabricatedOverlayInternal& overlay,
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std::optional<os::FabricatedOverlayInfo>* _aidl_return) override;
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binder::Status deleteFabricatedOverlay(const std::string& overlay_path,
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bool* _aidl_return) override;
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binder::Status getFabricatedOverlayInfos(
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std::vector<os::FabricatedOverlayInfo>* _aidl_return) override;
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private:
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// idmap2d is killed after a period of inactivity, so any information stored on this class should
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// be able to be recalculated if idmap2 dies and restarts.
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std::unique_ptr<idmap2::TargetResourceContainer> framework_apk_cache_;
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std::vector<os::FabricatedOverlayInfo> fabricated_overlays_;
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template <typename T>
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using MaybeUniquePtr = std::variant<std::unique_ptr<T>, T*>;
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using TargetResourceContainerPtr = MaybeUniquePtr<idmap2::TargetResourceContainer>;
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idmap2::Result<TargetResourceContainerPtr> GetTargetContainer(const std::string& target_path);
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template <typename T>
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WARN_UNUSED static const T* GetPointer(const MaybeUniquePtr<T>& ptr);
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};
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template <typename T>
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const T* Idmap2Service::GetPointer(const MaybeUniquePtr<T>& ptr) {
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auto u = std::get_if<T*>(&ptr);
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if (u != nullptr) {
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return *u;
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}
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return std::get<std::unique_ptr<T>>(ptr).get();
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}
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} // namespace android::os
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#endif // IDMAP2_IDMAP2D_IDMAP2SERVICE_H_
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