I2P: End-to-End encrypted and anonymous Internet https://i2pd.website/
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/*
* Copyright (c) 2013-2020, The PurpleI2P Project
*
* This file is part of Purple i2pd project and licensed under BSD3
*
* See full license text in LICENSE file at top of project tree
*/
#include <thread>
#include <memory>
#include "Daemon.h"
#include "Config.h"
#include "Log.h"
#include "FS.h"
#include "Base.h"
#include "version.h"
#include "Transports.h"
#include "RouterInfo.h"
#include "RouterContext.h"
#include "Tunnel.h"
#include "HTTP.h"
#include "NetDb.hpp"
#include "Garlic.h"
#include "Streaming.h"
#include "Destination.h"
#include "HTTPServer.h"
#include "I2PControl.h"
#include "ClientContext.h"
#include "Crypto.h"
#include "UPnP.h"
#include "Timestamp.h"
#include "util.h"
namespace i2p
{
namespace util
{
class Daemon_Singleton::Daemon_Singleton_Private
{
public:
Daemon_Singleton_Private() {};
~Daemon_Singleton_Private() {};
std::unique_ptr<i2p::http::HTTPServer> httpServer;
std::unique_ptr<i2p::client::I2PControlService> m_I2PControlService;
std::unique_ptr<i2p::transport::UPnP> UPnP;
std::unique_ptr<i2p::util::NTPTimeSync> m_NTPSync;
};
Daemon_Singleton::Daemon_Singleton() : isDaemon(false), running(true), d(*new Daemon_Singleton_Private()) {}
Daemon_Singleton::~Daemon_Singleton() {
delete &d;
}
bool Daemon_Singleton::IsService () const
{
bool service = false;
#ifndef _WIN32
i2p::config::GetOption("service", service);
#endif
return service;
}
bool Daemon_Singleton::init(int argc, char* argv[]) {
return init(argc, argv, nullptr);
}
bool Daemon_Singleton::init(int argc, char* argv[], std::shared_ptr<std::ostream> logstream)
{
i2p::config::Init();
i2p::config::ParseCmdline(argc, argv);
std::string config; i2p::config::GetOption("conf", config);
std::string datadir; i2p::config::GetOption("datadir", datadir);
i2p::fs::DetectDataDir(datadir, IsService());
i2p::fs::Init();
datadir = i2p::fs::GetDataDir();
if (config == "")
{
config = i2p::fs::DataDirPath("i2pd.conf");
if (!i2p::fs::Exists (config)) {
// use i2pd.conf only if exists
config = ""; /* reset */
}
}
i2p::config::ParseConfig(config);
i2p::config::Finalize();
i2p::config::GetOption("daemon", isDaemon);
std::string logs = ""; i2p::config::GetOption("log", logs);
std::string logfile = ""; i2p::config::GetOption("logfile", logfile);
std::string loglevel = ""; i2p::config::GetOption("loglevel", loglevel);
bool logclftime; i2p::config::GetOption("logclftime", logclftime);
/* setup logging */
if (logclftime)
i2p::log::Logger().SetTimeFormat ("[%d/%b/%Y:%H:%M:%S %z]");
if (isDaemon && (logs == "" || logs == "stdout"))
logs = "file";
i2p::log::Logger().SetLogLevel(loglevel);
if (logstream) {
LogPrint(eLogInfo, "Log: will send messages to std::ostream");
i2p::log::Logger().SendTo (logstream);
} else if (logs == "file") {
if (logfile == "")
logfile = i2p::fs::DataDirPath("i2pd.log");
LogPrint(eLogInfo, "Log: will send messages to ", logfile);
i2p::log::Logger().SendTo (logfile);
#ifndef _WIN32
} else if (logs == "syslog") {
LogPrint(eLogInfo, "Log: will send messages to syslog");
i2p::log::Logger().SendTo("i2pd", LOG_DAEMON);
#endif
} else {
// use stdout -- default
}
LogPrint(eLogInfo, "i2pd v", VERSION, " starting");
LogPrint(eLogDebug, "FS: main config file: ", config);
LogPrint(eLogDebug, "FS: data directory: ", datadir);
bool precomputation; i2p::config::GetOption("precomputation.elgamal", precomputation);
bool aesni; i2p::config::GetOption("cpuext.aesni", aesni);
bool avx; i2p::config::GetOption("cpuext.avx", avx);
bool forceCpuExt; i2p::config::GetOption("cpuext.force", forceCpuExt);
i2p::crypto::InitCrypto (precomputation, aesni, avx, forceCpuExt);
int netID; i2p::config::GetOption("netid", netID);
i2p::context.SetNetID (netID);
i2p::context.Init ();
bool ipv6; i2p::config::GetOption("ipv6", ipv6);
bool ipv4; i2p::config::GetOption("ipv4", ipv4);
#ifdef MESHNET
// manual override for meshnet
ipv4 = false;
ipv6 = true;
#endif
bool ygg; i2p::config::GetOption("meshnets.yggdrasil", ygg);
boost::asio::ip::address_v6 yggaddr;
if (ygg)
{
std::string yggaddress; i2p::config::GetOption ("meshnets.yggaddress", yggaddress);
if (!yggaddress.empty ())
{
yggaddr = boost::asio::ip::address_v6::from_string (yggaddress);
if (yggaddr.is_unspecified () || !i2p::util::net::IsYggdrasilAddress (yggaddr) ||
!i2p::util::net::IsLocalAddress (yggaddr))
{
LogPrint(eLogWarning, "Daemon: Can't find Yggdrasil address ", yggaddress);
ygg = false;
}
}
else
{
yggaddr = i2p::util::net::GetYggdrasilAddress ();
if (yggaddr.is_unspecified ())
{
LogPrint(eLogWarning, "Daemon: Yggdrasil is not running. Disabled");
ygg = false;
}
}
}
uint16_t port; i2p::config::GetOption("port", port);
if (!i2p::config::IsDefault("port"))
{
LogPrint(eLogInfo, "Daemon: accepting incoming connections at port ", port);
i2p::context.UpdatePort (port);
}
i2p::context.SetSupportsV6 (ipv6);
i2p::context.SetSupportsV4 (ipv4);
i2p::context.SetSupportsMesh (ygg, yggaddr);
i2p::context.RemoveNTCPAddress (!ipv6); // TODO: remove later
bool ntcp2; i2p::config::GetOption("ntcp2.enabled", ntcp2);
if (ntcp2)
{
bool published; i2p::config::GetOption("ntcp2.published", published);
if (published)
{
uint16_t ntcp2port; i2p::config::GetOption("ntcp2.port", ntcp2port);
if (!ntcp2port) ntcp2port = port; // use standard port
i2p::context.PublishNTCP2Address (ntcp2port, true); // publish
if (ipv6)
{
std::string ipv6Addr; i2p::config::GetOption("ntcp2.addressv6", ipv6Addr);
auto addr = boost::asio::ip::address_v6::from_string (ipv6Addr);
if (!addr.is_unspecified () && addr != boost::asio::ip::address_v6::any ())
i2p::context.UpdateNTCP2V6Address (addr); // set ipv6 address if configured
}
}
else
i2p::context.PublishNTCP2Address (port, false); // unpublish
}
if (ygg)
{
if (!ntcp2)
i2p::context.PublishNTCP2Address (port, true);
i2p::context.UpdateNTCP2V6Address (yggaddr);
}
bool transit; i2p::config::GetOption("notransit", transit);
i2p::context.SetAcceptsTunnels (!transit);
uint16_t transitTunnels; i2p::config::GetOption("limits.transittunnels", transitTunnels);
SetMaxNumTransitTunnels (transitTunnels);
bool isFloodfill; i2p::config::GetOption("floodfill", isFloodfill);
if (isFloodfill) {
LogPrint(eLogInfo, "Daemon: router will be floodfill");
i2p::context.SetFloodfill (true);
}
else
{
i2p::context.SetFloodfill (false);
}
/* this section also honors 'floodfill' flag, if set above */
std::string bandwidth; i2p::config::GetOption("bandwidth", bandwidth);
if (bandwidth.length () > 0)
{
if (bandwidth[0] >= 'K' && bandwidth[0] <= 'X')
{
i2p::context.SetBandwidth (bandwidth[0]);
LogPrint(eLogInfo, "Daemon: bandwidth set to ", i2p::context.GetBandwidthLimit (), "KBps");
}
else
{
auto value = std::atoi(bandwidth.c_str());
if (value > 0)
{
i2p::context.SetBandwidth (value);
LogPrint(eLogInfo, "Daemon: bandwidth set to ", i2p::context.GetBandwidthLimit (), " KBps");
}
else
{
LogPrint(eLogInfo, "Daemon: unexpected bandwidth ", bandwidth, ". Set to 'low'");
i2p::context.SetBandwidth (i2p::data::CAPS_FLAG_LOW_BANDWIDTH2);
}
}
}
else if (isFloodfill)
{
LogPrint(eLogInfo, "Daemon: floodfill bandwidth set to 'extra'");
i2p::context.SetBandwidth (i2p::data::CAPS_FLAG_EXTRA_BANDWIDTH1);
}
else
{
LogPrint(eLogInfo, "Daemon: bandwidth set to 'low'");
i2p::context.SetBandwidth (i2p::data::CAPS_FLAG_LOW_BANDWIDTH2);
}
int shareRatio; i2p::config::GetOption("share", shareRatio);
i2p::context.SetShareRatio (shareRatio);
std::string family; i2p::config::GetOption("family", family);
i2p::context.SetFamily (family);
if (family.length () > 0)
LogPrint(eLogInfo, "Daemon: family set to ", family);
bool trust; i2p::config::GetOption("trust.enabled", trust);
if (trust)
{
LogPrint(eLogInfo, "Daemon: explicit trust enabled");
std::string fam; i2p::config::GetOption("trust.family", fam);
std::string routers; i2p::config::GetOption("trust.routers", routers);
bool restricted = false;
if (fam.length() > 0)
{
std::set<std::string> fams;
size_t pos = 0, comma;
do
{
comma = fam.find (',', pos);
fams.insert (fam.substr (pos, comma != std::string::npos ? comma - pos : std::string::npos));
pos = comma + 1;
}
while (comma != std::string::npos);
i2p::transport::transports.RestrictRoutesToFamilies(fams);
restricted = fams.size() > 0;
}
if (routers.length() > 0) {
std::set<i2p::data::IdentHash> idents;
size_t pos = 0, comma;
do
{
comma = routers.find (',', pos);
i2p::data::IdentHash ident;
ident.FromBase64 (routers.substr (pos, comma != std::string::npos ? comma - pos : std::string::npos));
idents.insert (ident);
pos = comma + 1;
}
while (comma != std::string::npos);
LogPrint(eLogInfo, "Daemon: setting restricted routes to use ", idents.size(), " trusted routers");
i2p::transport::transports.RestrictRoutesToRouters(idents);
restricted = idents.size() > 0;
}
if(!restricted)
LogPrint(eLogError, "Daemon: no trusted routers of families specified");
}
bool hidden; i2p::config::GetOption("trust.hidden", hidden);
if (hidden)
{
LogPrint(eLogInfo, "Daemon: using hidden mode");
i2p::data::netdb.SetHidden(true);
}
return true;
}
bool Daemon_Singleton::start()
{
i2p::log::Logger().Start();
LogPrint(eLogInfo, "Daemon: starting NetDB");
i2p::data::netdb.Start();
bool upnp; i2p::config::GetOption("upnp.enabled", upnp);
if (upnp) {
d.UPnP = std::unique_ptr<i2p::transport::UPnP>(new i2p::transport::UPnP);
d.UPnP->Start ();
}
bool nettime; i2p::config::GetOption("nettime.enabled", nettime);
if (nettime)
{
d.m_NTPSync = std::unique_ptr<i2p::util::NTPTimeSync>(new i2p::util::NTPTimeSync);
d.m_NTPSync->Start ();
}
bool ntcp2; i2p::config::GetOption("ntcp2.enabled", ntcp2);
bool ssu; i2p::config::GetOption("ssu", ssu);
bool checkInReserved; i2p::config::GetOption("reservedrange", checkInReserved);
LogPrint(eLogInfo, "Daemon: starting Transports");
if(!ssu) LogPrint(eLogInfo, "Daemon: ssu disabled");
if(!ntcp2) LogPrint(eLogInfo, "Daemon: ntcp2 disabled");
i2p::transport::transports.SetCheckReserved(checkInReserved);
i2p::transport::transports.Start(ntcp2 || i2p::context.SupportsMesh (), ssu);
if (i2p::transport::transports.IsBoundSSU() || i2p::transport::transports.IsBoundNTCP2())
LogPrint(eLogInfo, "Daemon: Transports started");
else
{
LogPrint(eLogError, "Daemon: failed to start Transports");
/** shut down netdb right away */
i2p::transport::transports.Stop();
i2p::data::netdb.Stop();
return false;
}
bool http; i2p::config::GetOption("http.enabled", http);
if (http) {
std::string httpAddr; i2p::config::GetOption("http.address", httpAddr);
uint16_t httpPort; i2p::config::GetOption("http.port", httpPort);
LogPrint(eLogInfo, "Daemon: starting webconsole at ", httpAddr, ":", httpPort);
try
{
d.httpServer = std::unique_ptr<i2p::http::HTTPServer>(new i2p::http::HTTPServer(httpAddr, httpPort));
d.httpServer->Start();
}
catch (std::exception& ex)
{
LogPrint (eLogError, "Daemon: failed to start webconsole: ", ex.what ());
ThrowFatal ("Unable to start webconsole at ", httpAddr, ":", httpPort, ": ", ex.what ());
}
}
LogPrint(eLogInfo, "Daemon: starting Tunnels");
i2p::tunnel::tunnels.Start();
LogPrint(eLogInfo, "Daemon: starting Client");
i2p::client::context.Start ();
// I2P Control Protocol
bool i2pcontrol; i2p::config::GetOption("i2pcontrol.enabled", i2pcontrol);
if (i2pcontrol) {
std::string i2pcpAddr; i2p::config::GetOption("i2pcontrol.address", i2pcpAddr);
uint16_t i2pcpPort; i2p::config::GetOption("i2pcontrol.port", i2pcpPort);
LogPrint(eLogInfo, "Daemon: starting I2PControl at ", i2pcpAddr, ":", i2pcpPort);
try
{
d.m_I2PControlService = std::unique_ptr<i2p::client::I2PControlService>(new i2p::client::I2PControlService (i2pcpAddr, i2pcpPort));
d.m_I2PControlService->Start ();
}
catch (std::exception& ex)
{
LogPrint (eLogError, "Daemon: failed to start I2PControl: ", ex.what ());
ThrowFatal ("Unable to start I2PControl service at ", i2pcpAddr, ":", i2pcpPort, ": ", ex.what ());
}
}
return true;
}
bool Daemon_Singleton::stop()
{
LogPrint(eLogInfo, "Daemon: shutting down");
LogPrint(eLogInfo, "Daemon: stopping Client");
i2p::client::context.Stop();
LogPrint(eLogInfo, "Daemon: stopping Tunnels");
i2p::tunnel::tunnels.Stop();
if (d.UPnP)
{
d.UPnP->Stop ();
d.UPnP = nullptr;
}
if (d.m_NTPSync)
{
d.m_NTPSync->Stop ();
d.m_NTPSync = nullptr;
}
LogPrint(eLogInfo, "Daemon: stopping Transports");
i2p::transport::transports.Stop();
LogPrint(eLogInfo, "Daemon: stopping NetDB");
i2p::data::netdb.Stop();
if (d.httpServer) {
LogPrint(eLogInfo, "Daemon: stopping HTTP Server");
d.httpServer->Stop();
d.httpServer = nullptr;
}
if (d.m_I2PControlService)
{
LogPrint(eLogInfo, "Daemon: stopping I2PControl");
d.m_I2PControlService->Stop ();
d.m_I2PControlService = nullptr;
}
i2p::crypto::TerminateCrypto ();
i2p::log::Logger().Stop();
return true;
}
}
}