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@ -1,12 +1,15 @@
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#include <oxenmq/oxenmq.h>
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#include <nlohmann/json.hpp>
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#include <fmt/core.h>
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#include <cxxopts.hpp>
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#include <future>
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#include <vector>
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#include <array>
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#include <llarp/net/net.hpp>
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#include <CLI/App.hpp>
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#include <CLI/Formatter.hpp>
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#include <CLI/Config.hpp>
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#ifdef _WIN32
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// add the unholy windows headers for iphlpapi
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#include <winsock2.h>
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@ -53,25 +56,28 @@ OMQ_Request(
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namespace
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{
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template <typename T>
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constexpr bool is_optional = false;
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template <typename T>
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constexpr bool is_optional<std::optional<T>> = true;
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// Extracts a value from a cxxopts result and assigns it into `value` if present. The value can
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// either be a plain value or a std::optional. If not present, `value` is not touched.
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template <typename T>
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void
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extract_option(const cxxopts::ParseResult& r, const std::string& name, T& value)
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struct command_line_options
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{
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if (r.count(name))
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{
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if constexpr (is_optional<T>)
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value = r[name].as<typename T::value_type>();
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else
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value = r[name].as<T>();
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}
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}
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// bool options
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bool verbose = false;
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bool help = false;
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bool vpnUp = false;
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bool vpnDown = false;
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bool printStatus = false;
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bool killDaemon = false;
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// string options
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std::string exitAddress;
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std::string rpc;
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std::string endpoint = "default";
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std::string token;
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std::optional<std::string> range;
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// oxenmq
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oxenmq::address rpcURL{"tcp://127.0.0.1:1190"};
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oxenmq::LogLevel logLevel = oxenmq::LogLevel::warn;
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};
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// Takes a code, prints a message, and returns the code. Intended use is:
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// return exit_error(1, "blah: {}", 42);
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@ -98,119 +104,104 @@ namespace
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int
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main(int argc, char* argv[])
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{
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cxxopts::Options opts("lokinet-vpn", "LokiNET vpn control utility");
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// clang-format off
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opts.add_options()
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("v,verbose", "Verbose", cxxopts::value<bool>())
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("h,help", "help", cxxopts::value<bool>())
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("kill", "kill the daemon", cxxopts::value<bool>())
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("up", "put vpn up", cxxopts::value<bool>())
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("down", "put vpn down", cxxopts::value<bool>())
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("exit", "specify exit node address", cxxopts::value<std::string>())
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("rpc", "rpc url for lokinet", cxxopts::value<std::string>())
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("endpoint", "endpoint to use", cxxopts::value<std::string>())
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("token", "exit auth token to use", cxxopts::value<std::string>())
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("auth", "exit auth token to use", cxxopts::value<std::string>())
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("status", "print status and exit", cxxopts::value<bool>())
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("range", "ip range to map", cxxopts::value<std::string>())
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;
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// clang-format on
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oxenmq::address rpcURL("tcp://127.0.0.1:1190");
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std::string exitAddress;
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std::string endpoint = "default";
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std::string token;
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std::optional<std::string> range;
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oxenmq::LogLevel logLevel = oxenmq::LogLevel::warn;
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bool goUp = false;
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bool goDown = false;
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bool printStatus = false;
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bool killDaemon = false;
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CLI::App cli{"lokiNET vpn control utility", "lokinet-vpn"};
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command_line_options options{};
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// flags: boolean values in command_line_options struct
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cli.add_flag("v,--verbose", options.verbose, "Verbose");
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cli.add_flag("--up", options.vpnUp, "Put VPN up");
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cli.add_flag("--down", options.vpnDown, "Put VPN down");
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cli.add_flag("--status", options.printStatus, "Print VPN status and exit");
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cli.add_flag("k,--kill", options.killDaemon, "Kill lokinet daemon");
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// options: string values in command_line_options struct
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cli.add_option("--exit", options.exitAddress, "Specify exit node address")->capture_default_str();
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cli.add_option("--endpoint", options.endpoint, "Endpoint to use")->capture_default_str();
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cli.add_option("--token", options.token, "Exit auth token to use")->capture_default_str();
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// options: oxenmq values in command_line_options struct
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cli.add_option("--rpc", options.rpc, "Specify RPC URL for lokinet")->capture_default_str();
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cli.add_option(
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"--log-level", options.logLevel, "Log verbosity level, see log levels for accepted values")
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->type_name("LEVEL")
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->capture_default_str();
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try
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{
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const auto result = opts.parse(argc, argv);
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if (result.count("help") > 0)
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{
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std::cout << opts.help() << std::endl;
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return 0;
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}
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if (result.count("verbose") > 0)
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{
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logLevel = oxenmq::LogLevel::debug;
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}
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goUp = result.count("up") > 0;
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goDown = result.count("down") > 0;
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printStatus = result.count("status") > 0;
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killDaemon = result.count("kill") > 0;
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extract_option(result, "rpc", rpcURL);
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extract_option(result, "exit", exitAddress);
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extract_option(result, "endpoint", endpoint);
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extract_option(result, "token", token);
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extract_option(result, "auth", token);
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extract_option(result, "range", range);
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cli.parse(argc, argv);
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}
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catch (const CLI::ParseError& e)
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{
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return cli.exit(e);
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}
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catch (const cxxopts::option_not_exists_exception& ex)
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try
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{
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return exit_error(2, "{}\n{}", ex.what(), opts.help());
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if (options.verbose)
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options.logLevel = oxenmq::LogLevel::debug;
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}
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catch (std::exception& ex)
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catch (const CLI::OptionNotFound& e)
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{
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return exit_error(2, "{}", ex.what());
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cli.exit(e);
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}
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catch (const CLI::Error& e)
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{
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cli.exit(e);
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};
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int num_commands = goUp + goDown + printStatus + killDaemon;
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int numCommands = options.vpnUp + options.vpnDown + options.printStatus + options.killDaemon;
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if (num_commands == 0)
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return exit_error(3, "One of --up/--down/--status/--kill must be specified");
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if (num_commands != 1)
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return exit_error(3, "Only one of --up/--down/--status/--kill may be specified");
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switch (numCommands)
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{
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case 0:
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return exit_error(3, "One of --up/--down/--status/--kill must be specified");
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case 1:
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return exit_error(3, "Only one of --up/--down/--status/--kill may be specified");
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default:
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break;
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}
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if (goUp and exitAddress.empty())
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return exit_error("no exit address provided");
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if (options.vpnUp and options.exitAddress.empty())
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return exit_error("No exit address provided, must specify --exit <address>");
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oxenmq::OxenMQ omq{
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[](oxenmq::LogLevel lvl, const char* file, int line, std::string msg) {
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std::cout << lvl << " [" << file << ":" << line << "] " << msg << std::endl;
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},
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logLevel};
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options.logLevel};
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omq.start();
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std::promise<bool> connectPromise;
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const auto connID = omq.connect_remote(
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rpcURL,
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const auto connectionID = omq.connect_remote(
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options.rpc,
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[&connectPromise](auto) { connectPromise.set_value(true); },
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[&connectPromise](auto, std::string_view msg) {
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std::cout << "failed to connect to lokinet RPC: " << msg << std::endl;
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std::cout << "Failed to connect to lokinet RPC: " << msg << std::endl;
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connectPromise.set_value(false);
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});
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auto ftr = connectPromise.get_future();
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if (not ftr.get())
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{
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return 1;
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}
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if (killDaemon)
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if (options.killDaemon)
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{
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if (not OMQ_Request(omq, connID, "llarp.halt"))
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return exit_error("call to llarp.halt failed");
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if (not OMQ_Request(omq, connectionID, "llarp.halt"))
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return exit_error("Call to llarp.halt failed");
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return 0;
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}
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if (printStatus)
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if (options.printStatus)
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{
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const auto maybe_status = OMQ_Request(omq, connID, "llarp.status");
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const auto maybe_status = OMQ_Request(omq, connectionID, "llarp.status");
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if (not maybe_status)
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return exit_error("call to llarp.status failed");
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try
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{
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const auto& ep = maybe_status->at("result").at("services").at(endpoint);
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const auto& ep = maybe_status->at("result").at("services").at(options.endpoint);
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const auto exitMap = ep.at("exitMap");
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if (exitMap.empty())
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{
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@ -230,13 +221,13 @@ main(int argc, char* argv[])
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}
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return 0;
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}
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if (goUp)
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if (options.vpnUp)
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{
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nlohmann::json opts{{"exit", exitAddress}, {"token", token}};
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if (range)
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opts["range"] = *range;
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nlohmann::json opts{{"exit", options.exitAddress}, {"token", options.token}};
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if (options.range)
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opts["range"] = *options.range;
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auto maybe_result = OMQ_Request(omq, connID, "llarp.exit", std::move(opts));
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auto maybe_result = OMQ_Request(omq, connectionID, "llarp.exit", std::move(opts));
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if (not maybe_result)
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return exit_error("could not add exit");
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@ -247,12 +238,12 @@ main(int argc, char* argv[])
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return exit_error("{}", err_it.value());
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}
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}
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if (goDown)
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if (options.vpnDown)
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{
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nlohmann::json opts{{"unmap", true}};
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if (range)
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opts["range"] = *range;
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if (not OMQ_Request(omq, connID, "llarp.exit", std::move(opts)))
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if (options.range)
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opts["range"] = *options.range;
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if (not OMQ_Request(omq, connectionID, "llarp.exit", std::move(opts)))
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return exit_error("failed to unmap exit");
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}
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dan
1 year ago