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//
// Copyright (C) 2015 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_CLIENT_TPM_OWNERSHIP_DBUS_PROXY_H_
#define TPM_MANAGER_CLIENT_TPM_OWNERSHIP_DBUS_PROXY_H_
#include "tpm_manager/common/tpm_ownership_interface.h"
#include <string>
#include <base/macros.h>
#include <base/memory/ref_counted.h>
#include <dbus/bus.h>
#include <dbus/object_proxy.h>
#include "tpm_manager/common/export.h"
namespace tpm_manager {
// An implementation of TpmOwnershipInterface that forwards requests to
// tpm_managerd over D-Bus.
// Usage:
// std::unique_ptr<TpmOwnershipInterface> tpm_ = new TpmOwnershipDBusProxy();
// tpm_->GetTpmStatus(...);
class TPM_MANAGER_EXPORT TpmOwnershipDBusProxy : public TpmOwnershipInterface {
public:
TpmOwnershipDBusProxy() = default;
virtual ~TpmOwnershipDBusProxy();
// Performs initialization tasks. This method must be called before calling
// any other method in this class. Returns true on success.
bool Initialize();
// TpmOwnershipInterface methods.
void GetTpmStatus(const GetTpmStatusRequest& request,
const GetTpmStatusCallback& callback) override;
void TakeOwnership(const TakeOwnershipRequest& request,
const TakeOwnershipCallback& callback) override;
void set_object_proxy(dbus::ObjectProxy* object_proxy) {
object_proxy_ = object_proxy;
}
private:
// Template method to call a given |method_name| remotely via dbus.
template<typename ReplyProtobufType,
typename RequestProtobufType,
typename CallbackType>
void CallMethod(const std::string& method_name,
const RequestProtobufType& request,
const CallbackType& callback);
scoped_refptr<dbus::Bus> bus_;
dbus::ObjectProxy* object_proxy_;
DISALLOW_COPY_AND_ASSIGN(TpmOwnershipDBusProxy);
};
} // namespace tpm_manager
#endif // TPM_MANAGER_CLIENT_TPM_OWNERSHIP_DBUS_PROXY_H_
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