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122 lines
4.4 KiB
122 lines
4.4 KiB
// |
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// Copyright (C) 2016 The Android Open Source Project |
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// |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// http://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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// |
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#include "trunks/trunks_binder_proxy.h" |
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#include <base/bind.h> |
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#include <base/callback.h> |
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#include <base/logging.h> |
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#include <binderwrapper/binder_wrapper.h> |
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#include <utils/Errors.h> |
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#include "android/trunks/BnTrunksClient.h" |
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#include "android/trunks/BpTrunks.h" |
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#include "trunks/binder_interface.h" |
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#include "trunks/error_codes.h" |
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#include "trunks/interface.pb.h" |
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namespace { |
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// Implements ITrunksClient and forwards response data to a ResponseCallback. |
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class ResponseObserver : public android::trunks::BnTrunksClient { |
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public: |
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explicit ResponseObserver( |
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const trunks::CommandTransceiver::ResponseCallback& callback) |
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: callback_(callback) {} |
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// ITrunksClient interface. |
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android::binder::Status OnCommandResponse( |
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const std::vector<uint8_t>& response_proto_data) override { |
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trunks::SendCommandResponse response_proto; |
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if (!response_proto.ParseFromArray(response_proto_data.data(), |
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response_proto_data.size())) { |
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LOG(ERROR) << "TrunksBinderProxy: Bad response data."; |
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callback_.Run( |
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trunks::CreateErrorResponse(trunks::SAPI_RC_MALFORMED_RESPONSE)); |
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} |
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callback_.Run(response_proto.response()); |
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return android::binder::Status::ok(); |
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} |
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private: |
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trunks::CommandTransceiver::ResponseCallback callback_; |
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}; |
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} // namespace |
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namespace trunks { |
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bool TrunksBinderProxy::Init() { |
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android::sp<android::IBinder> service_binder = |
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android::BinderWrapper::GetOrCreateInstance()->GetService( |
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kTrunksServiceName); |
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if (!service_binder.get()) { |
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LOG(ERROR) << "TrunksBinderProxy: Trunks service does not exist."; |
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return false; |
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} |
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trunks_service_ = new android::trunks::BpTrunks(service_binder); |
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return true; |
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} |
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void TrunksBinderProxy::SendCommand(const std::string& command, |
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const ResponseCallback& callback) { |
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SendCommandRequest command_proto; |
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command_proto.set_command(command); |
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std::vector<uint8_t> command_proto_data; |
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command_proto_data.resize(command_proto.ByteSize()); |
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if (!command_proto.SerializeToArray(command_proto_data.data(), |
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command_proto_data.size())) { |
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LOG(ERROR) << "TrunksBinderProxy: Failed to serialize protobuf."; |
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callback.Run(CreateErrorResponse(TRUNKS_RC_IPC_ERROR)); |
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return; |
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} |
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android::sp<ResponseObserver> observer(new ResponseObserver(callback)); |
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android::binder::Status status = |
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trunks_service_->SendCommand(command_proto_data, observer); |
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if (!status.isOk()) { |
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LOG(ERROR) << "TrunksBinderProxy: Binder error: " << status.toString8(); |
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callback.Run(CreateErrorResponse(TRUNKS_RC_IPC_ERROR)); |
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return; |
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} |
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} |
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std::string TrunksBinderProxy::SendCommandAndWait(const std::string& command) { |
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SendCommandRequest command_proto; |
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command_proto.set_command(command); |
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std::vector<uint8_t> command_proto_data; |
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command_proto_data.resize(command_proto.ByteSize()); |
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if (!command_proto.SerializeToArray(command_proto_data.data(), |
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command_proto_data.size())) { |
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LOG(ERROR) << "TrunksBinderProxy: Failed to serialize protobuf."; |
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return CreateErrorResponse(TRUNKS_RC_IPC_ERROR); |
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} |
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std::vector<uint8_t> response_proto_data; |
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android::binder::Status status = trunks_service_->SendCommandAndWait( |
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command_proto_data, &response_proto_data); |
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if (!status.isOk()) { |
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LOG(ERROR) << "TrunksBinderProxy: Binder error: " << status.toString8(); |
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return CreateErrorResponse(TRUNKS_RC_IPC_ERROR); |
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} |
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trunks::SendCommandResponse response_proto; |
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if (!response_proto.ParseFromArray(response_proto_data.data(), |
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response_proto_data.size())) { |
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LOG(ERROR) << "TrunksBinderProxy: Bad response data."; |
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return trunks::CreateErrorResponse(trunks::SAPI_RC_MALFORMED_RESPONSE); |
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} |
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return response_proto.response(); |
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} |
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} // namespace trunks
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