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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_DBUS_PROXY_H_
#define TPM_MANAGER_CLIENT_DBUS_PROXY_H_
#include "tpm_manager/common/tpm_manager_interface.h"
#include <string>
#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 TpmManagerInterface that forwards requests to
// tpm_managerd over D-Bus.
// Usage:
// std::unique_ptr<TpmManagerInterface> tpm_manager = new DBusProxy();
// tpm_manager->GetTpmStatus(...);
class TPM_MANAGER_EXPORT DBusProxy : public TpmManagerInterface {
public:
DBusProxy();
virtual ~DBusProxy();
// TpmManagerInterface methods.
bool Initialize() override;
void GetTpmStatus(const GetTpmStatusRequest& request,
const GetTpmStatusCallback& callback) override;
void TakeOwnership(const TakeOwnershipRequest& request,
const TakeOwnershipCallback& callback) override;
void DefineNvram(const DefineNvramRequest& request,
const DefineNvramCallback& callback) override;
void DestroyNvram(const DestroyNvramRequest& request,
const DestroyNvramCallback& callback) override;
void WriteNvram(const WriteNvramRequest& request,
const WriteNvramCallback& callback) override;
void ReadNvram(const ReadNvramRequest& request,
const ReadNvramCallback& callback) override;
void IsNvramDefined(const IsNvramDefinedRequest& request,
const IsNvramDefinedCallback& callback) override;
void IsNvramLocked(const IsNvramLockedRequest& request,
const IsNvramLockedCallback& callback) override;
void GetNvramSize(const GetNvramSizeRequest& request,
const GetNvramSizeCallback& 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(DBusProxy);
};
} // namespace tpm_manager
#endif // TPM_MANAGER_CLIENT_DBUS_PROXY_H_
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