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//
// Copyright (C) 2016 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 TPM_MANAGER_SERVER_BINDER_SERVICE_H_
#define TPM_MANAGER_SERVER_BINDER_SERVICE_H_
#include <brillo/binder_watcher.h>
#include <brillo/daemons/daemon.h>
#include "android/tpm_manager/BnTpmNvram.h"
#include "android/tpm_manager/BnTpmOwnership.h"
#include "tpm_manager/common/tpm_nvram_interface.h"
#include "tpm_manager/common/tpm_ownership_interface.h"
namespace tpm_manager {
// BinderService registers for and handles all incoming binder calls for the
// tpm_managerd system daemon.
//
// Example Usage:
//
// BinderService service(&nvram_service, &ownership_service);
// service.Run();
class BinderService : public brillo::Daemon {
public:
BinderService(TpmNvramInterface* nvram_service,
TpmOwnershipInterface* ownership_service);
~BinderService() override = default;
// Does basic setup but does not register with the binder subsystem.
void InitForTesting();
// Getters for binder interfaces. Callers do not take ownership. These should
// only be used for testing.
android::tpm_manager::ITpmNvram* GetITpmNvram();
android::tpm_manager::ITpmOwnership* GetITpmOwnership();
protected:
int OnInit() override;
private:
friend class NvramServiceInternal;
class NvramServiceInternal : public android::tpm_manager::BnTpmNvram {
public:
NvramServiceInternal(TpmNvramInterface* service);
~NvramServiceInternal() override = default;
// ITpmNvram interface.
android::binder::Status DefineSpace(
const std::vector<uint8_t>& command_proto,
const android::sp<android::tpm_manager::ITpmManagerClient>& client)
override;
android::binder::Status DestroySpace(
const std::vector<uint8_t>& command_proto,
const android::sp<android::tpm_manager::ITpmManagerClient>& client)
override;
android::binder::Status WriteSpace(
const std::vector<uint8_t>& command_proto,
const android::sp<android::tpm_manager::ITpmManagerClient>& client)
override;
android::binder::Status ReadSpace(
const std::vector<uint8_t>& command_proto,
const android::sp<android::tpm_manager::ITpmManagerClient>& client)
override;
android::binder::Status ListSpaces(
const std::vector<uint8_t>& command_proto,
const android::sp<android::tpm_manager::ITpmManagerClient>& client)
override;
android::binder::Status GetSpaceInfo(
const std::vector<uint8_t>& command_proto,
const android::sp<android::tpm_manager::ITpmManagerClient>& client)
override;
android::binder::Status LockSpace(
const std::vector<uint8_t>& command_proto,
const android::sp<android::tpm_manager::ITpmManagerClient>& client)
override;
private:
TpmNvramInterface* nvram_service_;
};
friend class OwnershipServiceInternal;
class OwnershipServiceInternal : public android::tpm_manager::BnTpmOwnership {
public:
OwnershipServiceInternal(TpmOwnershipInterface* service);
~OwnershipServiceInternal() override = default;
// ITpmOwnership interface.
android::binder::Status GetTpmStatus(
const std::vector<uint8_t>& command_proto,
const android::sp<android::tpm_manager::ITpmManagerClient>& client)
override;
android::binder::Status TakeOwnership(
const std::vector<uint8_t>& command_proto,
const android::sp<android::tpm_manager::ITpmManagerClient>& client)
override;
android::binder::Status RemoveOwnerDependency(
const std::vector<uint8_t>& command_proto,
const android::sp<android::tpm_manager::ITpmManagerClient>& client)
override;
private:
TpmOwnershipInterface* ownership_service_;
};
brillo::BinderWatcher watcher_;
android::sp<NvramServiceInternal> nvram_binder_;
android::sp<OwnershipServiceInternal> ownership_binder_;
TpmNvramInterface* nvram_service_;
TpmOwnershipInterface* ownership_service_;
DISALLOW_COPY_AND_ASSIGN(BinderService);
};
} // namespace tpm_manager
#endif // TPM_MANAGER_SERVER_BINDER_SERVICE_H_
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