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316 lines
9.3 KiB
C++
316 lines
9.3 KiB
C++
#include <config/config.hpp> // for ensure_config
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#include <constants/version.hpp>
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#include <llarp.hpp>
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#include <util/lokinet_init.h>
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#include <util/fs.hpp>
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#include <util/logging/logger.hpp>
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#include <util/logging/ostream_logger.hpp>
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#include <csignal>
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#include <cxxopts.hpp>
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#include <string>
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#include <iostream>
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#include <future>
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#ifdef _WIN32
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#define wmin(x, y) (((x) < (y)) ? (x) : (y))
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#define MIN wmin
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extern "C" LONG FAR PASCAL
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win32_signal_handler(EXCEPTION_POINTERS *);
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#endif
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struct llarp_main *ctx = 0;
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std::promise< int > exit_code;
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void
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handle_signal(int sig)
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{
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if(ctx)
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{
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llarp_main_signal(ctx, sig);
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}
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}
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#ifdef _WIN32
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int
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startWinsock()
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{
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WSADATA wsockd;
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int err;
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err = ::WSAStartup(MAKEWORD(2, 2), &wsockd);
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if(err)
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{
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perror("Failed to start Windows Sockets");
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return err;
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}
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::CreateMutex(nullptr, FALSE, "lokinet_win32_daemon");
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return 0;
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}
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extern "C" BOOL FAR PASCAL
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handle_signal_win32(DWORD fdwCtrlType)
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{
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UNREFERENCED_PARAMETER(fdwCtrlType);
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handle_signal(SIGINT);
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return TRUE; // probably unreachable
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}
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#endif
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/// this sets up, configures and runs the main context
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static void
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run_main_context(std::string conffname, llarp_main_runtime_opts opts)
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{
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// this is important, can downgrade from Info though
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llarp::LogDebug("Running from: ", fs::current_path().string());
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llarp::LogInfo("Using config file: ", conffname);
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ctx = llarp_main_init(conffname.c_str());
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int code = 1;
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if(ctx)
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{
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signal(SIGINT, handle_signal);
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signal(SIGTERM, handle_signal);
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#ifndef _WIN32
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signal(SIGHUP, handle_signal);
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#endif
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code = llarp_main_setup(ctx);
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llarp::util::SetThreadName("llarp-mainloop");
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if(code == 0)
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code = llarp_main_run(ctx, opts);
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}
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exit_code.set_value(code);
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}
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int
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main(int argc, char *argv[])
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{
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auto result = Lokinet_INIT();
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if(result)
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{
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return result;
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}
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llarp_main_runtime_opts opts;
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const char *singleThreadVar = getenv("LLARP_SHADOW");
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if(singleThreadVar && std::string(singleThreadVar) == "1")
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{
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opts.singleThreaded = true;
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}
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#ifdef _WIN32
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if(startWinsock())
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return -1;
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SetConsoleCtrlHandler(handle_signal_win32, TRUE);
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// SetUnhandledExceptionFilter(win32_signal_handler);
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#endif
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cxxopts::Options options("lokinet",
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"LokiNET is a free, open source, private, "
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"decentralized, \"market based sybil resistant\" "
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"and IP based onion routing network");
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options.add_options()("v,verbose", "Verbose", cxxopts::value< bool >())(
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"h,help", "help", cxxopts::value< bool >())("version", "version",
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cxxopts::value< bool >())(
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"g,generate", "generate client config", cxxopts::value< bool >())(
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"r,router", "generate router config", cxxopts::value< bool >())(
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"f,force", "overwrite", cxxopts::value< bool >())(
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"c,colour", "colour output",
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cxxopts::value< bool >()->default_value("true"))(
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"b,background",
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"background mode (start, but do not connect to the network)",
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cxxopts::value< bool >())("config", "path to configuration file",
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cxxopts::value< std::string >());
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options.parse_positional("config");
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bool genconfigOnly = false;
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bool asRouter = false;
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bool overWrite = false;
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std::string conffname;
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try
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{
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auto result = options.parse(argc, argv);
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if(result.count("verbose") > 0)
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{
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SetLogLevel(llarp::eLogDebug);
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llarp::LogDebug("debug logging activated");
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}
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if(!result["colour"].as< bool >())
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{
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llarp::LogContext::Instance().logStream =
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std::make_unique< llarp::OStreamLogStream >(false, std::cerr);
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}
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if(result.count("help"))
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{
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std::cout << options.help() << std::endl;
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return 0;
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}
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if(result.count("version"))
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{
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std::cout << llarp_version() << std::endl;
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return 0;
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}
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if(result.count("generate") > 0)
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{
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genconfigOnly = true;
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}
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if(result.count("background") > 0)
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{
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opts.background = true;
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}
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if(result.count("force") > 0)
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{
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overWrite = true;
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}
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if(result.count("router") > 0)
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{
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asRouter = true;
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// we should generate and exit (docker needs this, so we don't write a
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// config each time on startup)
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genconfigOnly = true;
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}
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if(result.count("config") > 0)
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{
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auto arg = result["config"].as< std::string >();
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if(!arg.empty())
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{
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conffname = arg;
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}
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}
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}
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catch(const cxxopts::option_not_exists_exception &ex)
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{
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std::cerr << ex.what();
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std::cout << options.help() << std::endl;
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return 1;
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}
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if(!conffname.empty())
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{
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// when we have an explicit filepath
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fs::path fname = fs::path(conffname);
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fs::path basedir = fname.parent_path();
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if(!basedir.empty())
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{
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std::error_code ec;
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if(!fs::create_directories(basedir, ec))
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{
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if(ec)
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{
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llarp::LogError("failed to create '", basedir.string(),
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"': ", ec.message());
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return 1;
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}
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}
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}
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if(genconfigOnly)
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{
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if(!llarp_ensure_config(conffname.c_str(), basedir.string().c_str(),
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overWrite, asRouter))
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return 1;
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}
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else
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{
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std::error_code ec;
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if(!fs::exists(fname, ec))
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{
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llarp::LogError("Config file not found ", conffname);
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return 1;
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}
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}
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}
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else
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{
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auto basepath = llarp::GetDefaultConfigDir();
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llarp::LogDebug("Find or create ", basepath.string());
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std::error_code ec;
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// These paths are guaranteed to exist - $APPDATA or $HOME
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// so only create .lokinet/*
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if(!fs::create_directory(basepath, ec))
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{
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if(ec)
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{
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llarp::LogError("failed to create '", basepath.string(),
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"': ", ec.message());
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return 1;
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}
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}
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auto fpath = llarp::GetDefaultConfigPath();
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// if using default INI file, we're create it even if you don't ask us too
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if(!llarp_ensure_config(fpath.string().c_str(), basepath.string().c_str(),
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overWrite, asRouter))
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return 1;
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conffname = fpath.string();
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}
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if(genconfigOnly)
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{
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return 0;
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}
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std::thread main_thread{std::bind(&run_main_context, conffname, opts)};
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auto ftr = exit_code.get_future();
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do
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{
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// do periodic non lokinet related tasks here
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if(ctx != nullptr)
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{
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auto ctx_pp = llarp::Context::Get(ctx);
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if(ctx_pp != nullptr)
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{
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if(ctx_pp->IsUp() and not ctx_pp->LooksAlive())
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{
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for(const auto &wtf : {"you have been visited by the mascott of the "
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"deadlocked router.",
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"⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⣀⣴⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⣄⠄⠄⠄⠄",
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"⠄⠄⠄⠄⠄⢀⣀⣀⡀⠄⠄⠄⡠⢲⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⡀⠄⠄",
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"⠄⠄⠄⠔⣈⣀⠄⢔⡒⠳⡴⠊⠄⠸⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡿⠿⣿⣿⣧⠄⠄",
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"⠄⢜⡴⢑⠖⠊⢐⣤⠞⣩⡇⠄⠄⠄⠙⢿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣆⠄⠝⠛⠋⠐",
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"⢸⠏⣷⠈⠄⣱⠃⠄⢠⠃⠐⡀⠄⠄⠄⠄⠙⠻⢿⣿⣿⣿⣿⣿⣿⣿⡿⠛⠸⠄⠄⠄⠄",
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"⠈⣅⠞⢁⣿⢸⠘⡄⡆⠄⠄⠈⠢⡀⠄⠄⠄⠄⠄⠄⠉⠙⠛⠛⠛⠉⠉⡀⠄⠡⢀⠄⣀",
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"⠄⠙⡎⣹⢸⠄⠆⢘⠁⠄⠄⠄⢸⠈⠢⢄⡀⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠃⠄⠄⠄⠄⠄",
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"⠄⠄⠑⢿⠈⢆⠘⢼⠄⠄⠄⠄⠸⢐⢾⠄⡘⡏⠲⠆⠠⣤⢤⢤⡤⠄⣖⡇⠄⠄⠄⠄⠄",
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"⣴⣶⣿⣿⣣⣈⣢⣸⠄⠄⠄⠄⡾⣷⣾⣮⣤⡏⠁⠘⠊⢠⣷⣾⡛⡟⠈⠄⠄⠄⠄⠄⠄",
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"⣿⣿⣿⣿⣿⠉⠒⢽⠄⠄⠄⠄⡇⣿⣟⣿⡇⠄⠄⠄⠄⢸⣻⡿⡇⡇⠄⠄⠄⠄⠄⠄⠄",
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"⠻⣿⣿⣿⣿⣄⠰⢼⠄⠄⠄⡄⠁⢻⣍⣯⠃⠄⠄⠄⠄⠈⢿⣻⠃⠈⡆⡄⠄⠄⠄⠄⠄",
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"⠄⠙⠿⠿⠛⣿⣶⣤⡇⠄⠄⢣⠄⠄⠈⠄⢠⠂⠄⠁⠄⡀⠄⠄⣀⠔⢁⠃⠄⠄⠄⠄⠄",
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"⠄⠄⠄⠄⠄⣿⣿⣿⣿⣾⠢⣖⣶⣦⣤⣤⣬⣤⣤⣤⣴⣶⣶⡏⠠⢃⠌⠄⠄⠄⠄⠄⠄",
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"⠄⠄⠄⠄⠄⠿⠿⠟⠛⡹⠉⠛⠛⠿⠿⣿⣿⣿⣿⣿⡿⠂⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄",
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"⠠⠤⠤⠄⠄⣀⠄⠄⠄⠑⠠⣤⣀⣀⣀⡘⣿⠿⠙⠻⡍⢀⡈⠂⠄⠄⠄⠄⠄⠄⠄⠄⠄",
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"⠄⠄⠄⠄⠄⠄⠑⠠⣠⣴⣾⣿⣿⣿⣿⣿⣿⣇⠉⠄⠻⣿⣷⣄⡀⠄⠄⠄⠄⠄⠄⠄⠄",
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"file a bug report now or be cursed with this "
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"annoying image in your syslog for all time."})
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{
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LogError(wtf);
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}
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std::abort();
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}
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}
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}
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} while(ftr.wait_for(std::chrono::seconds(1)) != std::future_status::ready);
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main_thread.join();
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const auto code = ftr.get();
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#ifdef _WIN32
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::WSACleanup();
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#endif
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if(ctx)
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{
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llarp_main_free(ctx);
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}
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return code;
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}
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