116 lines
3.8 KiB
C++
116 lines
3.8 KiB
C++
/*
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*
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* Copyright (C) 2023 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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*/
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#include <fstream>
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#include <iostream>
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#include <memory>
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#include <regex>
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#include <string>
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#include <gflags/gflags.h>
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#include <grpcpp/ext/proto_server_reflection_plugin.h>
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#include <grpcpp/grpcpp.h>
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#include <grpcpp/health_check_service_interface.h>
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#include "common/libs/utils/files.h"
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#include "common/libs/utils/result.h"
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#include "openwrt_control.grpc.pb.h"
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using google::protobuf::Empty;
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using grpc::Server;
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using grpc::ServerBuilder;
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using grpc::ServerContext;
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using grpc::Status;
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using openwrtcontrolserver::OpenwrtControlService;
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using openwrtcontrolserver::OpenwrtIpaddrReply;
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DEFINE_string(grpc_uds_path, "", "grpc_uds_path");
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DEFINE_bool(bridged_wifi_tap, false,
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"True for using cvd-wtap-XX, false for using cvd-wifiap-XX");
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DEFINE_string(launcher_log_path, "", "File path for launcher.log");
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DEFINE_string(openwrt_log_path, "", "File path for crosvm_openwrt.log");
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namespace cuttlefish {
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class OpenwrtControlServiceImpl final : public OpenwrtControlService::Service {
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Status OpenwrtIpaddr(ServerContext* context, const Empty* request,
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OpenwrtIpaddrReply* response) override {
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// TODO(seungjaeyoo) : Find IP address from crosvm_openwrt.log when using
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// cvd-wtap-XX after disabling DHCP inside OpenWRT in bridged_wifi_tap mode.
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auto result = FindIpaddrLauncherLog();
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response->set_is_error(!TypeIsSuccess(result));
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if (TypeIsSuccess(result)) {
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response->set_ipaddr(*result);
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}
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return Status::OK;
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}
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Result<std::string> FindIpaddrLauncherLog() {
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if (!FileExists(FLAGS_launcher_log_path)) {
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return CF_ERR("launcher.log doesn't exist");
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}
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std::regex re("wan_ipaddr=[0-9]+\\.[0-9]+\\.[0-9]+\\.[0-9]+");
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std::smatch matches;
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std::ifstream ifs(FLAGS_launcher_log_path);
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std::string line, last_match;
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while (std::getline(ifs, line)) {
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if (std::regex_search(line, matches, re)) {
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last_match = matches[0];
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}
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}
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if (last_match.empty()) {
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return CF_ERR("IP address is not found from launcher.log");
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} else {
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return last_match.substr(last_match.find('=') + 1);
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}
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}
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};
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} // namespace cuttlefish
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void RunServer() {
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std::string server_address("unix:" + FLAGS_grpc_uds_path);
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cuttlefish::OpenwrtControlServiceImpl service;
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grpc::EnableDefaultHealthCheckService(true);
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grpc::reflection::InitProtoReflectionServerBuilderPlugin();
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ServerBuilder builder;
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// Listen on the given address without any authentication mechanism.
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builder.AddListeningPort(server_address, grpc::InsecureServerCredentials());
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// Register "service" as the instance through which we'll communicate with
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// clients. In this case it corresponds to an *synchronous* service.
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builder.RegisterService(&service);
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// Finally assemble the server.
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std::unique_ptr<Server> server(builder.BuildAndStart());
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std::cout << "Server listening on " << server_address << std::endl;
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// Wait for the server to shutdown. Note that some other thread must be
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// responsible for shutting down the server for this call to ever return.
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server->Wait();
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}
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int main(int argc, char** argv) {
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::gflags::ParseCommandLineFlags(&argc, &argv, true);
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RunServer();
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return 0;
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} |