mirror of
https://github.com/oxen-io/lokinet.git
synced 2024-11-15 12:13:24 +00:00
365 lines
12 KiB
C++
365 lines
12 KiB
C++
#include <config.hpp>
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#include <constants/defaults.hpp>
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#include <net/net.hpp>
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#include <util/fs.hpp>
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#include <util/ini.hpp>
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#include <util/logger.hpp>
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#include <util/mem.hpp>
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#include <fstream>
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#include <ios>
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#include <iostream>
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namespace llarp
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{
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template < typename Config, typename Section >
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Section
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find_section(Config &c, const std::string &name, const Section &fallback)
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{
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Section ret;
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if(c.VisitSection(name.c_str(),
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[&ret](const ConfigParser::Section_t &s) -> bool {
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for(const auto &item : s)
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{
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ret.emplace_back(string_view_string(item.first),
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string_view_string(item.second));
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}
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return true;
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}))
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return ret;
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else
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return fallback;
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}
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bool
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Config::Load(const char *fname)
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{
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ConfigParser parser;
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if(!parser.LoadFile(fname))
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{
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return false;
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}
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router = find_section(parser, "router", section_t{});
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network = find_section(parser, "network", section_t{});
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connect = find_section(parser, "connect", section_t{});
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netdb = find_section(parser, "netdb", section_t{});
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dns = find_section(parser, "dns", section_t{});
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iwp_links = find_section(parser, "bind", section_t{});
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services = find_section(parser, "services", section_t{});
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system = find_section(parser, "system", section_t{});
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metrics = find_section(parser, "metrics", section_t{});
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api = find_section(parser, "api", section_t{});
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lokid = find_section(parser, "lokid", section_t{});
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bootstrap = find_section(parser, "bootstrap", section_t{});
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logging = find_section(parser, "logging", section_t{});
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return true;
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}
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void
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Config::visit(const Visitor &functor)
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{
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std::unordered_map< std::string, const llarp::Config::section_t & >
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sections = {{"network", network},
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{"connect", connect},
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{"bootstrap", bootstrap},
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{"system", system},
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{"metrics", metrics},
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{"netdb", netdb},
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{"api", api},
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{"services", services}};
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auto visitor = [&](const char *name, const auto &item) {
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functor(name, item.first.c_str(), item.second.c_str());
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};
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using namespace std::placeholders;
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std::for_each(logging.begin(), logging.end(),
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std::bind(visitor, "logging", _1));
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// end of logging section commit settings and go
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functor("logging", "", "");
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std::for_each(lokid.begin(), lokid.end(), std::bind(visitor, "lokid", _1));
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std::for_each(router.begin(), router.end(),
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std::bind(visitor, "router", _1));
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std::for_each(dns.begin(), dns.end(), std::bind(visitor, "dns", _1));
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std::for_each(iwp_links.begin(), iwp_links.end(),
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std::bind(visitor, "bind", _1));
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std::for_each(sections.begin(), sections.end(), [&](const auto §ion) {
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std::for_each(section.second.begin(), section.second.end(),
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std::bind(visitor, section.first.c_str(), _1));
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});
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}
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} // namespace llarp
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/// fname should be a relative path (from CWD) or absolute path to the config
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/// file
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extern "C" bool
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llarp_ensure_config(const char *fname, const char *basedir, bool overwrite,
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bool asRouter)
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{
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std::error_code ec;
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if(fs::exists(fname, ec) && !overwrite)
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{
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return true;
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}
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if(ec)
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{
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llarp::LogError(ec);
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return false;
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}
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std::string basepath = "";
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if(basedir)
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{
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basepath = basedir;
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#ifndef _WIN32
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basepath += "/";
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#else
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basepath += "\\";
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#endif
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}
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llarp::LogInfo("Attempting to create config file ", fname);
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// abort if config already exists
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if(!asRouter)
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{
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if(fs::exists(fname, ec) && !overwrite)
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{
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llarp::LogError(fname, " currently exists, please use -f to overwrite");
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return true;
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}
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if(ec)
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{
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llarp::LogError(ec);
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return false;
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}
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}
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// write fname ini
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std::ofstream f(fname, std::ios::out | std::ios::binary);
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if(!f.is_open())
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{
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llarp::LogError("failed to open ", fname, " for writing");
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return false;
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}
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llarp_generic_ensure_config(f, basepath);
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if(asRouter)
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{
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llarp_ensure_router_config(f, basepath);
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}
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else
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{
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llarp_ensure_client_config(f, basepath);
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}
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llarp::LogInfo("Generated new config ", fname);
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return true;
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}
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void
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llarp_generic_ensure_config(std::ofstream &f, std::string basepath)
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{
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f << "# this configuration was auto generated with 'sane' defaults"
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<< std::endl;
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f << "# change these values as desired" << std::endl;
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f << std::endl << std::endl;
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f << "[router]" << std::endl;
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f << "# number of crypto worker threads " << std::endl;
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f << "threads=4" << std::endl;
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f << "# path to store signed RC" << std::endl;
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f << "contact-file=" << basepath << "self.signed" << std::endl;
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f << "# path to store transport private key" << std::endl;
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f << "transport-privkey=" << basepath << "transport.private" << std::endl;
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f << "# path to store identity signing key" << std::endl;
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f << "ident-privkey=" << basepath << "identity.private" << std::endl;
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f << "# encryption key for onion routing" << std::endl;
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f << "encryption-privkey=" << basepath << "encryption.private" << std::endl;
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f << std::endl;
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f << "# uncomment following line to set router nickname to 'lokinet'"
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<< std::endl;
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f << "#nickname=lokinet" << std::endl;
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f << std::endl << std::endl;
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// logging
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f << "[logging]" << std::endl;
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f << "level=info" << std::endl;
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f << "# uncomment for logging to file" << std::endl;
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f << "#type=file" << std::endl;
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f << "#file=/path/to/logfile" << std::endl;
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f << "# uncomment for syslog logging" << std::endl;
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f << "#type=syslog" << std::endl;
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// metrics
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f << "[metrics]" << std::endl;
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f << "json-metrics-path=" << basepath << "metrics.json" << std::endl;
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f << std::endl << std::endl;
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f << "# admin api (disabled by default)" << std::endl;
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f << "[api]" << std::endl;
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f << "enabled=false" << std::endl;
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f << "#authkey=insertpubkey1here" << std::endl;
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f << "#authkey=insertpubkey2here" << std::endl;
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f << "#authkey=insertpubkey3here" << std::endl;
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f << "bind=127.0.0.1:1190" << std::endl;
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f << std::endl << std::endl;
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f << "# system settings for privileges and such" << std::endl;
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f << "[system]" << std::endl;
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f << "user=" << DEFAULT_LOKINET_USER << std::endl;
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f << "group=" << DEFAULT_LOKINET_GROUP << std::endl;
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f << "pidfile=" << basepath << "lokinet.pid" << std::endl;
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f << std::endl << std::endl;
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f << "# dns provider configuration section" << std::endl;
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f << "[dns]" << std::endl;
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f << "# resolver" << std::endl;
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f << "upstream=" << DEFAULT_RESOLVER_US << std::endl;
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// Make auto-config smarter
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// will this break reproducibility rules?
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// (probably)
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#ifdef __linux__
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#ifdef ANDROID
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f << "bind=127.0.0.1:1153" << std::endl;
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#else
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f << "bind=127.3.2.1:53" << std::endl;
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#endif
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#else
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f << "bind=127.0.0.1:53" << std::endl;
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#endif
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f << std::endl << std::endl;
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f << "# network database settings block " << std::endl;
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f << "[netdb]" << std::endl;
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f << "# directory for network database skiplist storage" << std::endl;
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f << "dir=" << basepath << "netdb" << std::endl;
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f << std::endl << std::endl;
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f << "# bootstrap settings" << std::endl;
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f << "[bootstrap]" << std::endl;
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f << "# add a bootstrap node's signed identity to the list of nodes we want "
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"to bootstrap from"
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<< std::endl;
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f << "# if we don't have any peers we connect to this router" << std::endl;
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f << "add-node=" << basepath << "bootstrap.signed" << std::endl;
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// we only process one of these...
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// f << "# add another bootstrap node" << std::endl;
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// f << "#add-node=/path/to/alternative/self.signed" << std::endl;
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f << std::endl << std::endl;
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}
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void
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llarp_ensure_router_config(std::ofstream &f, std::string basepath)
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{
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f << "# lokid settings (disabled by default)" << std::endl;
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f << "[lokid]" << std::endl;
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f << "enabled=false" << std::endl;
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f << "jsonrpc=127.0.0.1:22023" << std::endl;
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f << "#service-node-seed=/path/to/servicenode/seed" << std::endl;
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f << std::endl;
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f << "# network settings " << std::endl;
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f << "[network]" << std::endl;
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f << "profiles=" << basepath << "profiles.dat" << std::endl;
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// better to let the routers auto-configure
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// f << "ifaddr=auto" << std::endl;
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// f << "ifname=auto" << std::endl;
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f << "enabled=true" << std::endl;
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f << "exit=false" << std::endl;
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f << "#exit-blacklist=tcp:25" << std::endl;
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f << "#exit-whitelist=tcp:*" << std::endl;
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f << "#exit-whitelist=udp:*" << std::endl;
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f << std::endl;
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f << "# ROUTERS ONLY: publish network interfaces for handling inbound traffic"
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<< std::endl;
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f << "[bind]" << std::endl;
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// get ifname
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std::string ifname;
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if(llarp::GetBestNetIF(ifname, AF_INET))
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f << ifname << "=1090" << std::endl;
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else
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f << "# could not autodetect network interface" << std::endl
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<< "#eth0=1090" << std::endl;
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f << std::endl;
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}
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bool
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llarp_ensure_client_config(std::ofstream &f, std::string basepath)
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{
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// write snapp-example.ini
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const std::string snappExample_fpath = basepath + "snapp-example.ini";
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{
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std::ofstream example_f(snappExample_fpath,
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std::ios::binary | std::ios::out);
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if(f.is_open())
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{
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// pick ip
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// don't revert me
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const static std::string ip = "10.33.0.1/16";
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/*
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std::string ip = llarp::findFreePrivateRange();
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if(ip == "")
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{
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llarp::LogError(
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"Couldn't easily detect a private range to map lokinet onto");
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return false;
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}
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*/
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example_f << "# this is an example configuration for a snapp"
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<< std::endl;
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example_f << "[example-snapp]" << std::endl;
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example_f << "# keyfile is the path to the private key of the snapp, "
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"your .loki is tied to this key, DON'T LOSE IT"
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<< std::endl;
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example_f << "keyfile=" << basepath << "example-snap-keyfile.private"
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<< std::endl;
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example_f << "# ifaddr is the ip range to allocate to this snapp"
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<< std::endl;
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example_f << "ifaddr=" << ip << std::endl;
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// probably fine to leave this (and not-auto-detect it) I'm not worried
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// about any collisions
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example_f << "# ifname is the name to try and give to the network "
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"interface this snap owns"
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<< std::endl;
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example_f << "ifname=snapp-tun0" << std::endl;
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}
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else
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{
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llarp::LogError("failed to write ", snappExample_fpath);
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}
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}
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// now do up fname
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f << std::endl << std::endl;
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f << "# snapps configuration section" << std::endl;
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f << "[services]";
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f << "# uncomment next line to enable a snapp" << std::endl;
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f << "#example-snapp=" << snappExample_fpath << std::endl;
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f << std::endl << std::endl;
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f << "# network settings " << std::endl;
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f << "[network]" << std::endl;
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f << "profiles=" << basepath << "profiles.dat" << std::endl;
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f << "# uncomment next line to add router with pubkey to list of routers we "
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"connect directly to"
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<< std::endl;
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f << "#strict-connect=pubkey" << std::endl;
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f << "# uncomment next line to use router with pubkey as an exit node"
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<< std::endl;
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f << "#exit-node=pubkey" << std::endl;
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// better to set them to auto then to hard code them now
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// operating environment may change over time and this will help adapt
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// f << "ifname=auto" << std::endl;
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// f << "ifaddr=auto" << std::endl;
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// should this also be auto? or not declared?
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// probably auto in case they want to set up a hidden service
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f << "enabled=true" << std::endl;
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return true;
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}
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