// // 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. // #include "tpm_manager/client/tpm_ownership_dbus_proxy.h" #include <brillo/bind_lambda.h> #include <brillo/dbus/dbus_method_invoker.h> #include "tpm_manager/common/tpm_manager_constants.h" #include "tpm_manager/common/tpm_ownership_dbus_interface.h" namespace { // Use a two minute timeout because TPM operations can take a long time. const int kDBusTimeoutMS = 2 * 60 * 1000; } // namespace namespace tpm_manager { TpmOwnershipDBusProxy::~TpmOwnershipDBusProxy() { if (bus_) { bus_->ShutdownAndBlock(); } } bool TpmOwnershipDBusProxy::Initialize() { dbus::Bus::Options options; options.bus_type = dbus::Bus::SYSTEM; bus_ = new dbus::Bus(options); object_proxy_ = bus_->GetObjectProxy( tpm_manager::kTpmManagerServiceName, dbus::ObjectPath(tpm_manager::kTpmManagerServicePath)); return (object_proxy_ != nullptr); } void TpmOwnershipDBusProxy::GetTpmStatus( const GetTpmStatusRequest& request, const GetTpmStatusCallback& callback) { CallMethod<GetTpmStatusReply>(tpm_manager::kGetTpmStatus, request, callback); } void TpmOwnershipDBusProxy::TakeOwnership( const TakeOwnershipRequest& request, const TakeOwnershipCallback& callback) { CallMethod<TakeOwnershipReply>( tpm_manager::kTakeOwnership, request, callback); } void TpmOwnershipDBusProxy::RemoveOwnerDependency( const RemoveOwnerDependencyRequest& request, const RemoveOwnerDependencyCallback& callback) { CallMethod<RemoveOwnerDependencyReply>( tpm_manager::kRemoveOwnerDependency, request, callback); } template<typename ReplyProtobufType, typename RequestProtobufType, typename CallbackType> void TpmOwnershipDBusProxy::CallMethod(const std::string& method_name, const RequestProtobufType& request, const CallbackType& callback) { auto on_error = [callback](brillo::Error* error) { ReplyProtobufType reply; reply.set_status(STATUS_NOT_AVAILABLE); callback.Run(reply); }; brillo::dbus_utils::CallMethodWithTimeout( kDBusTimeoutMS, object_proxy_, tpm_manager::kTpmOwnershipInterface, method_name, callback, base::Bind(on_error), request); } } // namespace tpm_manager