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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.
//
#include "tpm_manager/client/tpm_nvram_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_nvram_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 {
TpmNvramDBusProxy::~TpmNvramDBusProxy() {
if (bus_) {
bus_->ShutdownAndBlock();
}
}
bool TpmNvramDBusProxy::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 TpmNvramDBusProxy::DefineNvram(const DefineNvramRequest& request,
const DefineNvramCallback& callback) {
CallMethod<DefineNvramReply>(tpm_manager::kDefineNvram, request, callback);
}
void TpmNvramDBusProxy::DestroyNvram(const DestroyNvramRequest& request,
const DestroyNvramCallback& callback) {
CallMethod<DestroyNvramReply>(tpm_manager::kDestroyNvram, request, callback);
}
void TpmNvramDBusProxy::WriteNvram(const WriteNvramRequest& request,
const WriteNvramCallback& callback) {
CallMethod<WriteNvramReply>(tpm_manager::kWriteNvram, request, callback);
}
void TpmNvramDBusProxy::ReadNvram(const ReadNvramRequest& request,
const ReadNvramCallback& callback) {
CallMethod<ReadNvramReply>(tpm_manager::kReadNvram, request, callback);
}
void TpmNvramDBusProxy::IsNvramDefined(const IsNvramDefinedRequest& request,
const IsNvramDefinedCallback& callback) {
CallMethod<IsNvramDefinedReply>(
tpm_manager::kIsNvramDefined, request, callback);
}
void TpmNvramDBusProxy::IsNvramLocked(const IsNvramLockedRequest& request,
const IsNvramLockedCallback& callback) {
CallMethod<IsNvramLockedReply>(
tpm_manager::kIsNvramLocked, request, callback);
}
void TpmNvramDBusProxy::GetNvramSize(const GetNvramSizeRequest& request,
const GetNvramSizeCallback& callback) {
CallMethod<GetNvramSizeReply>(tpm_manager::kGetNvramSize, request, callback);
}
template<typename ReplyProtobufType,
typename RequestProtobufType,
typename CallbackType>
void TpmNvramDBusProxy::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::kTpmNvramInterface,
method_name,
callback,
base::Bind(on_error),
request);
}
} // namespace tpm_manager
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