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/*
* Copyright (C) 2018 The Android Open Source Project
*
* 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.
*/
#ifndef IDMAP2_IDMAP2D_IDMAP2SERVICE_H_
#define IDMAP2_IDMAP2D_IDMAP2SERVICE_H_
#include <android-base/unique_fd.h>
#include <android/os/BnIdmap2.h>
#include <android/os/FabricatedOverlayInfo.h>
#include <binder/BinderService.h>
#include <idmap2/ResourceContainer.h>
#include <idmap2/Result.h>
#include <memory>
#include <string>
#include <vector>
namespace android::os {
class Idmap2Service : public BinderService<Idmap2Service>, public BnIdmap2 {
public:
static char const* getServiceName() {
return "idmap";
}
binder::Status getIdmapPath(const std::string& overlay_path, int32_t user_id,
std::string* _aidl_return) override;
binder::Status removeIdmap(const std::string& overlay_path, int32_t user_id,
bool* _aidl_return) override;
binder::Status verifyIdmap(const std::string& target_path, const std::string& overlay_path,
const std::string& overlay_name, int32_t fulfilled_policies,
bool enforce_overlayable, int32_t user_id,
bool* _aidl_return) override;
binder::Status createIdmap(const std::string& target_path, const std::string& overlay_path,
const std::string& overlay_name, int32_t fulfilled_policies,
bool enforce_overlayable, int32_t user_id,
std::optional<std::string>* _aidl_return) override;
binder::Status createFabricatedOverlay(
const os::FabricatedOverlayInternal& overlay,
std::optional<os::FabricatedOverlayInfo>* _aidl_return) override;
binder::Status deleteFabricatedOverlay(const std::string& overlay_path,
bool* _aidl_return) override;
binder::Status getFabricatedOverlayInfos(
std::vector<os::FabricatedOverlayInfo>* _aidl_return) override;
binder::Status dumpIdmap(const std::string& overlay_path, std::string* _aidl_return) override;
private:
// idmap2d is killed after a period of inactivity, so any information stored on this class should
// be able to be recalculated if idmap2 dies and restarts.
std::unique_ptr<idmap2::TargetResourceContainer> framework_apk_cache_;
std::vector<os::FabricatedOverlayInfo> fabricated_overlays_;
template <typename T>
using MaybeUniquePtr = std::variant<std::unique_ptr<T>, T*>;
using TargetResourceContainerPtr = MaybeUniquePtr<idmap2::TargetResourceContainer>;
idmap2::Result<TargetResourceContainerPtr> GetTargetContainer(const std::string& target_path);
template <typename T>
WARN_UNUSED static const T* GetPointer(const MaybeUniquePtr<T>& ptr);
};
template <typename T>
const T* Idmap2Service::GetPointer(const MaybeUniquePtr<T>& ptr) {
auto u = std::get_if<T*>(&ptr);
if (u != nullptr) {
return *u;
}
return std::get<std::unique_ptr<T>>(ptr).get();
}
} // namespace android::os
#endif // IDMAP2_IDMAP2D_IDMAP2SERVICE_H_
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