mirror of
https://github.com/oxen-io/lokinet.git
synced 2024-11-05 21:20:38 +00:00
601 lines
14 KiB
C++
601 lines
14 KiB
C++
#include <llarp.hpp>
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#include <llarp.h>
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#include <config.hpp>
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#include <crypto/crypto_libsodium.hpp>
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#include <crypto/crypto_noop.hpp>
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#include <dht/context.hpp>
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#include <dnsd.hpp>
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#include <ev/ev.hpp>
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#include <metrics/metrictank_publisher.hpp>
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#include <metrics/publishers.hpp>
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#include <nodedb.hpp>
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#include <router/router.hpp>
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#include <util/logger.h>
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#include <util/memfn.hpp>
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#include <util/metrics.hpp>
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#include <util/scheduler.hpp>
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#include <absl/strings/str_split.h>
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#include <cxxopts.hpp>
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#include <signal.h>
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#if(__FreeBSD__) || (__OpenBSD__) || (__NetBSD__)
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#include <pthread_np.h>
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#endif
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namespace llarp
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{
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Context::Context()
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{
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}
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Context::~Context()
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{
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m_scheduler->stop();
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}
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void
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Context::progress()
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{
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std::cout << "." << std::flush;
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}
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bool
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Context::Configure()
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{
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// llarp::LogInfo("loading config at ", configfile);
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if(!config->Load(configfile.c_str()))
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{
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config.release();
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llarp::LogError("failed to load config file ", configfile);
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return false;
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}
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config->visit(util::memFn(&Context::iter_config, this));
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if(!disableMetrics)
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{
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setupMetrics();
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if(!disableMetricLogs)
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{
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m_metricsManager->instance()->addGlobalPublisher(
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std::make_shared< metrics::StreamPublisher >(std::cerr));
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}
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}
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return true;
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}
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void
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Context::iter_config(const char *section, const char *key, const char *val)
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{
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if(!strcmp(section, "system"))
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{
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if(!strcmp(key, "pidfile"))
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{
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SetPIDFile(val);
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}
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}
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if(!strcmp(section, "metrics"))
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{
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if(!strcmp(key, "disable-metrics"))
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{
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disableMetrics = true;
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}
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else if(!strcmp(key, "disable-metrics-log"))
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{
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disableMetricLogs = true;
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}
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else if(!strcmp(key, "json-metrics-path"))
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{
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jsonMetricsPath = val;
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}
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else if(!strcmp(key, "metric-tank-host"))
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{
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metricTankHost = val;
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}
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else
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{
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// consume everything else as a metric tag
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metricTags[key] = val;
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}
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}
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if(!strcmp(section, "router"))
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{
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if(!strcmp(key, "worker-threads") && !singleThreaded)
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{
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int workers = atoi(val);
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if(workers > 0 && worker == nullptr)
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{
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worker.reset(llarp_init_threadpool(workers, "llarp-worker"));
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}
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}
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else if(!strcmp(key, "net-threads"))
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{
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num_nethreads = atoi(val);
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if(num_nethreads <= 0)
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num_nethreads = 1;
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if(singleThreaded)
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num_nethreads = 0;
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}
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}
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if(!strcmp(section, "netdb"))
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{
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if(!strcmp(key, "dir"))
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{
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nodedb_dir = val;
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}
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}
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}
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void
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Context::setupMetrics()
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{
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if(!m_scheduler)
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{
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m_scheduler = std::make_unique< thread::Scheduler >();
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}
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if(!m_metricsManager)
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{
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m_metricsManager = std::make_unique< metrics::DefaultManagerGuard >();
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}
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if(!m_metricsPublisher)
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{
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m_metricsPublisher = std::make_unique< metrics::PublisherScheduler >(
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*m_scheduler, m_metricsManager->instance());
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}
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if(!jsonMetricsPath.native().empty())
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{
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m_metricsManager->instance()->addGlobalPublisher(
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std::make_shared< metrics::JsonPublisher >(
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std::bind(&metrics::JsonPublisher::directoryPublisher,
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std::placeholders::_1, jsonMetricsPath)));
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}
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if(!metricTankHost.empty())
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{
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if(std::getenv("LOKINET_ENABLE_METRIC_TANK"))
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{
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static std::string WARNING = R"(
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__ ___ ____ _ _ ___ _ _ ____
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\ \ / / \ | _ \| \ | |_ _| \ | |/ ___|
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\ \ /\ / / _ \ | |_) | \| || || \| | | _
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\ V V / ___ \| _ <| |\ || || |\ | |_| |
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\_/\_/_/ \_\_| \_\_| \_|___|_| \_|\____|
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This Lokinet session is not private!!
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Sending connection metrics to metrictank!!
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__ ___ ____ _ _ ___ _ _ ____
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\ \ / / \ | _ \| \ | |_ _| \ | |/ ___|
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\ \ /\ / / _ \ | |_) | \| || || \| | | _
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\ V V / ___ \| _ <| |\ || || |\ | |_| |
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\_/\_/_/ \_\_| \_\_| \_|___|_| \_|\____|
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)";
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std::cerr << WARNING << '\n';
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std::pair< std::string, std::string > split =
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absl::StrSplit(metricTankHost, ':');
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m_metricsManager->instance()->addGlobalPublisher(
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std::make_shared< metrics::MetricTankPublisher >(
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metricTags, split.first, stoi(split.second)));
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}
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else
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{
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std::cerr << "metrictank host specified, but "
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"LOKINET_ENABLE_METRIC_TANK not set, skipping\n";
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}
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}
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m_metricsPublisher->setDefault(absl::Seconds(30));
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m_scheduler->start();
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}
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void
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Context::SetPIDFile(const std::string &fname)
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{
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pidfile = fname;
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}
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int
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Context::LoadDatabase()
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{
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nodedb = std::make_unique< llarp_nodedb >(router->diskworker());
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if(!llarp_nodedb::ensure_dir(nodedb_dir.c_str()))
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{
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llarp::LogError("nodedb_dir is incorrect");
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return 0;
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}
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// llarp::LogInfo("nodedb_dir [", nodedb_dir, "] configured!");
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ssize_t loaded = nodedb->load_dir(nodedb_dir.c_str());
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llarp::LogInfo("nodedb_dir loaded ", loaded, " RCs from [", nodedb_dir,
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"]");
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if(loaded < 0)
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{
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// shouldn't be possible
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llarp::LogError("nodedb_dir directory doesn't exist");
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return 0;
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}
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return 1;
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}
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bool
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Context::PutDatabase(__attribute__((unused)) struct llarp::RouterContact &rc)
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{
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// FIXME
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// return llarp_nodedb_put_rc(nodedb, rc);
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return false;
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}
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llarp::RouterContact *
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Context::GetDatabase(__attribute__((unused)) const byte_t *pk)
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{
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// FIXME
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// return llarp_nodedb_get_rc(nodedb, pk);
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return nullptr;
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}
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int
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Context::Setup(bool debug)
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{
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llarp::LogInfo(LLARP_VERSION, " ", LLARP_RELEASE_MOTTO);
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llarp::LogInfo("starting up");
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#if defined(WIN32)
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mainloop = llarp_make_ev_loop();
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#else
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mainloop = llarp_make_uv_loop();
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#endif
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// ensure worker thread pool
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if(!worker && !singleThreaded)
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worker.reset(llarp_init_threadpool(2, "llarp-worker"));
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else if(singleThreaded)
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{
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llarp::LogInfo("running in single threaded mode");
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worker.reset(llarp_init_same_process_threadpool());
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}
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// ensure netio thread
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if(singleThreaded)
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{
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logic = std::make_shared< Logic >(worker.get());
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}
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else
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logic = std::make_shared< Logic >();
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if(debug)
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{
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static std::string WARNING = R"(
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__ ___ ____ _ _ ___ _ _ ____
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\ \ / / \ | _ \| \ | |_ _| \ | |/ ___|
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\ \ /\ / / _ \ | |_) | \| || || \| | | _
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\ V V / ___ \| _ <| |\ || || |\ | |_| |
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\_/\_/_/ \_\_| \_\_| \_|___|_| \_|\____|
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This Lokinet session is not private!!
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Sending traffic unencrypted!!
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__ ___ ____ _ _ ___ _ _ ____
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\ \ / / \ | _ \| \ | |_ _| \ | |/ ___|
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\ \ /\ / / _ \ | |_) | \| || || \| | | _
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\ V V / ___ \| _ <| |\ || || |\ | |_| |
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\_/\_/_/ \_\_| \_\_| \_|___|_| \_|\____|
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)";
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std::cerr << WARNING << '\n';
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crypto = std::make_unique< NoOpCrypto >();
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}
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else
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{
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crypto = std::make_unique< sodium::CryptoLibSodium >();
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}
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cryptoManager = std::make_unique< CryptoManager >(crypto.get());
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router = std::make_unique< Router >(worker.get(), mainloop, logic);
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if(!router->Configure(config.get()))
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{
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llarp::LogError("Failed to configure router");
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return 1;
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}
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// must be done after router is made so we can use its disk io worker
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// must also be done after configure so that netid is properly set if it
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// is provided by config
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if(!this->LoadDatabase())
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return 1;
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return 0;
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}
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int
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Context::Run()
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{
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if(router == nullptr)
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{
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// we are not set up so we should die
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llarp::LogError("cannot run non configured context");
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return 1;
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}
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if(!WritePIDFile())
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return 1;
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// run
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if(!router->Run(nodedb.get()))
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return 1;
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// run net io thread
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llarp::LogInfo("running mainloop");
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llarp_ev_loop_run_single_process(mainloop, worker.get(), logic);
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// waits for router graceful stop
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return 0;
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}
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bool
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Context::WritePIDFile() const
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{
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if(pidfile.size())
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{
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std::ofstream f(pidfile);
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f << std::to_string(getpid());
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return f.good();
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}
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else
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return true;
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}
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void
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Context::RemovePIDFile() const
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{
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if(pidfile.size())
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{
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fs::path f = pidfile;
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std::error_code ex;
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if(fs::exists(f, ex))
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{
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if(!ex)
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fs::remove(f);
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}
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}
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}
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void
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Context::HandleSignal(int sig)
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{
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if(sig == SIGINT || sig == SIGTERM)
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{
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SigINT();
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}
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// TODO(despair): implement hot-reloading config on NT
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#ifndef _WIN32
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if(sig == SIGHUP)
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{
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llarp::LogInfo("SIGHUP");
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if(router)
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{
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router->hiddenServiceContext().ForEachService(
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[](const std::string &name,
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const llarp::service::Endpoint_ptr &ep) -> bool {
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ep->ResetInternalState();
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llarp::LogInfo("Reset internal state for ", name);
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return true;
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});
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router->PumpLL();
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Config newconfig;
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if(!newconfig.Load(configfile.c_str()))
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{
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llarp::LogError("failed to load config file ", configfile);
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return;
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}
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// validate config
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if(!router->ValidateConfig(&newconfig))
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{
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llarp::LogWarn("new configuration is invalid");
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return;
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}
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// reconfigure
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if(!router->Reconfigure(&newconfig))
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{
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llarp::LogError("Failed to reconfigure so we will stop.");
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router->Stop();
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return;
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}
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llarp::LogInfo("router reconfigured");
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}
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}
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#endif
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}
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void
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Context::SigINT()
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{
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if(router)
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{
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/// async stop router on sigint
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router->Stop();
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}
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else
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{
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if(logic)
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logic->stop();
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llarp_ev_loop_stop(mainloop);
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Close();
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}
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}
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void
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Context::Close()
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{
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llarp::LogDebug("stop workers");
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if(worker)
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llarp_threadpool_stop(worker.get());
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llarp::LogDebug("join workers");
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if(worker)
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llarp_threadpool_join(worker.get());
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llarp::LogDebug("free config");
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config.release();
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llarp::LogDebug("free workers");
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worker.release();
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llarp::LogDebug("free nodedb");
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nodedb.release();
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llarp::LogDebug("free router");
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router.release();
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llarp::LogDebug("free logic");
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logic.reset();
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RemovePIDFile();
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}
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bool
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Context::LoadConfig(const std::string &fname)
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{
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config = std::make_unique< Config >();
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configfile = fname;
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return Configure();
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}
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} // namespace llarp
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struct llarp_main
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{
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std::unique_ptr< llarp::Context > ctx;
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};
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extern "C"
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{
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struct llarp_main *
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llarp_main_init(const char *fname, bool multiProcess)
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{
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if(!fname)
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fname = "daemon.ini";
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char *var = getenv("LLARP_DEBUG");
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if(var && *var == '1')
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{
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cSetLogLevel(eLogDebug);
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}
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llarp_main *m = new llarp_main;
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m->ctx = std::make_unique< llarp::Context >();
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m->ctx->singleThreaded = !multiProcess;
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if(!m->ctx->LoadConfig(fname))
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{
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m->ctx->Close();
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delete m;
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return nullptr;
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}
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return m;
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}
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void
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llarp_main_signal(struct llarp_main *ptr, int sig)
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{
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ptr->ctx->HandleSignal(sig);
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}
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int
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llarp_main_setup(struct llarp_main *ptr, bool debug)
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{
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return ptr->ctx->Setup(debug);
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}
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int
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llarp_main_run(struct llarp_main *ptr)
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{
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if(!ptr)
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{
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llarp::LogError("No ptr passed in");
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return 1;
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}
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return ptr->ctx->Run();
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}
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void
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llarp_main_abort(struct llarp_main *ptr)
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{
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ptr->ctx->router->logic()->stop_timer();
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}
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void
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llarp_main_queryDHT_RC(struct llarp_main *ptr,
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struct llarp_router_lookup_job *job)
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{
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llarp_dht_lookup_router(ptr->ctx->router->dht(), job);
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}
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bool
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llarp_main_init_dnsd(struct llarp_main *ptr, struct dnsd_context *dnsd,
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const llarp::Addr &dnsd_sockaddr,
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const llarp::Addr &dnsc_sockaddr)
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{
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return llarp_dnsd_init(dnsd, ptr->ctx->logic.get(),
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ptr->ctx->mainloop.get(), dnsd_sockaddr,
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dnsc_sockaddr);
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}
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bool
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llarp_main_init_dotLokiLookup(struct llarp_main *ptr,
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struct dotLokiLookup *dll)
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{
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(void)ptr;
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(void)dll;
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// TODO: gut me
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return false;
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}
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void
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llarp_main_free(struct llarp_main *ptr)
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{
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delete ptr;
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}
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int
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llarp_main_loadDatabase(struct llarp_main *ptr)
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{
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return ptr->ctx->LoadDatabase();
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}
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const char *
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handleBaseCmdLineArgs(int argc, char *argv[])
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{
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// clang-format off
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cxxopts::Options options(
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"lokinet",
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"Lokinet is a private, decentralized and IP based overlay network for the internet"
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);
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options.add_options()
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("c,config", "Config file", cxxopts::value< std::string >()->default_value("daemon.ini"))
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("o,logLevel", "logging level");
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// clang-format on
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auto result = options.parse(argc, argv);
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std::string logLevel = result["logLevel"].as< std::string >();
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if(logLevel == "debug")
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{
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cSetLogLevel(eLogDebug);
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}
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else if(logLevel == "info")
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{
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cSetLogLevel(eLogInfo);
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}
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else if(logLevel == "warn")
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{
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cSetLogLevel(eLogWarn);
|
|
}
|
|
else if(logLevel == "error")
|
|
{
|
|
cSetLogLevel(eLogError);
|
|
}
|
|
|
|
// this isn't thread safe, but reconfiguring during run is likely unsafe
|
|
// either way
|
|
static std::string confname = result["config"].as< std::string >();
|
|
|
|
return confname.c_str();
|
|
}
|
|
}
|