#include "config.hpp" #include #include #include #include "fs.hpp" #include "ini.hpp" #include "logger.hpp" #include "mem.hpp" namespace llarp { template < typename Config, typename Section > static const Section & find_section(Config &c, const std::string &name, const Section &fallback) { if(c.sections.find(name) == c.sections.end()) return fallback; return c.sections[name].values; } bool Config::Load(const char *fname) { std::ifstream f; f.open(fname); if(f.is_open()) { ini::Parser parser(f); auto &top = parser.top(); router = find_section(top, "router", section_t{}); network = find_section(top, "network", section_t{}); connect = find_section(top, "connect", section_t{}); netdb = find_section(top, "netdb", section_t{}); dns = find_section(top, "dns", section_t{}); iwp_links = find_section(top, "bind", section_t{}); services = find_section(top, "services", section_t{}); system = find_section(top, "system", section_t{}); api = find_section(top, "api", section_t{}); return true; } return false; }; } // namespace llarp extern "C" bool llarp_ensure_config(const char *fname, const char *basedir, bool overwrite, bool asRouter) { std::error_code ec; if(fs::exists(fname, ec) && !overwrite) { return true; } if(ec) { llarp::LogError(ec); return false; } std::string basepath = ""; if(basedir) { basepath = basedir; #ifndef _WIN32 basepath += "/"; #else basepath += "\\"; #endif } // abort if client.ini already exists if(!asRouter) { if(fs::exists(basepath + "client.ini", ec) && !overwrite) { llarp::LogError( basepath, "client.ini currently exists, please use -f to overwrite"); return true; } if(ec) { llarp::LogError(ec); return false; } } // write fname ini std::ofstream f(fname); if(!f.is_open()) { llarp::LogError("failed to open ", fname, " for writing"); return false; } llarp_generic_ensure_config(f, basepath); if(asRouter) { llarp_ensure_router_config(f, basepath); } else { llarp_ensure_client_config(f, basepath); } llarp::LogInfo("Generated new config ", fname); return true; } void llarp_generic_ensure_config(std::ofstream &f, std::string basepath) { f << "# this configuration was auto generated with 'sane' defaults" << std::endl; f << "# change these values as desired" << std::endl; f << std::endl << std::endl; f << "[router]" << std::endl; f << "# number of crypto worker threads " << std::endl; f << "threads=4" << std::endl; f << "# path to store signed RC" << std::endl; f << "contact-file=" << basepath << "self.signed" << std::endl; f << "# path to store transport private key" << std::endl; f << "transport-privkey=" << basepath << "transport.private" << std::endl; f << "# path to store identity signing key" << std::endl; f << "ident-privkey=" << basepath << "identity.private" << std::endl; f << "# encryption key for onion routing" << std::endl; f << "encryption-privkey=" << basepath << "encryption.private" << std::endl; f << std::endl; f << "# uncomment following line to set router nickname to 'lokinet'" << std::endl; f << "# nickname=lokinet" << std::endl; f << std::endl << std::endl; f << "# admin api (disabled by default)" << std::endl; f << "[api]" << std::endl; f << "enabled=false" << std::endl; f << "# authkey=insertpubkey1here" << std::endl; f << "# authkey=insertpubkey2here" << std::endl; f << "# authkey=insertpubkey3here" << std::endl; #ifdef _WIN32 f << "bind=127.0.0.1:1190" << std::endl; #else f << "bind=unix:" << basepath << "api.socket" << std::endl; #endif f << std::endl << std::endl; f << "# system settings for priviledges and such" << std::endl; f << "[system]" << std::endl; #ifdef _WIN32 f << "# "; #endif f << "user=" << DEFAULT_LOKINET_USER << std::endl; #ifdef _WIN32 f << "# "; #endif f << "group=" << DEFAULT_LOKINET_GROUP << std::endl; f << std::endl << std::endl; f << "# dns provider configuration section" << std::endl; f << "[dns]" << std::endl; f << "# opennic us resolver" << std::endl; f << "upstream=" << DEFAULT_RESOLVER_US << std::endl; f << "# opennic eu resolver" << std::endl; f << "upstream=" << DEFAULT_RESOLVER_EU << std::endl; f << "# opennic au resolver" << std::endl; f << "upstream=" << DEFAULT_RESOLVER_AU << std::endl; f << "bind=127.3.2.1:53" << std::endl; f << std::endl << std::endl; f << "# network database settings block " << std::endl; f << "[netdb]" << std::endl; f << "# directory for network database skiplist storage" << std::endl; f << "dir=" << basepath << "netdb" << std::endl; f << std::endl << std::endl; f << "# bootstrap settings " << std::endl; f << "[connect]" << std::endl; f << "bootstrap=" << basepath << "bootstrap.signed" << std::endl; f << std::endl << std::endl; } void llarp_ensure_router_config(std::ofstream &f, std::string basepath) { f << "# network settings " << std::endl; f << "[network]" << std::endl; f << "profiles=" << basepath << "profiles.dat" << std::endl; f << std::endl; f << "# ROUTERS ONLY: publish network interfaces for handling inbound traffic" << std::endl; f << "[bind]" << std::endl; // get ifname std::string ifname; if(llarp::GetBestNetIF(ifname, AF_INET)) f << ifname << "=1090" << std::endl; else f << "# could not autodetect network interface" << std::endl << "# eth0=1090" << std::endl; f << std::endl; } bool llarp_ensure_client_config(std::ofstream &f, std::string basepath) { #ifndef _WIN32 const std::string snappExample_fpath = basepath + "snapp-example.ini"; // done with fname.ini // start client.ini // write fname ini { std::ofstream clientini_f(snappExample_fpath); if(f.is_open()) { clientini_f << "# this is an example configuration for a snapp"; clientini_f << "[example-snapp]" << std::endl; clientini_f << "# keyfile is the path to the private key of the snapp" << std::endl; clientini_f << "keyfile=" << basepath << "example-snap-keyfile.private" << std::endl; clientini_f << "# ifaddr is the ip range to allocate to this snapp" << std::endl; clientini_f << "ifaddr=10.55.0.0/16" << std::endl; clientini_f << "# ifname is the name to try and give to the network " "interface this snap owns" << std::endl; clientini_f << "ifname=snapp-tun0" << std::endl; } else { llarp::LogError("failed to write ", snappExample_fpath); } } f << std::endl << std::endl; f << "# snapps configuration section" << std::endl; f << "[services]"; f << "# uncomment next line to enable persistant snapp" << std::endl; f << "#example-snapp=" << snappExample_fpath << std::endl; f << std::endl << std::endl; #endif f << "# network settings " << std::endl; f << "[network]" << std::endl; f << "profiles=" << basepath << "profiles.dat" << std::endl; #ifndef __linux__ f << "# "; #endif // pick ip std::string ip = llarp::findFreePrivateRange(); /* struct privatesInUse ifsInUse = llarp_getPrivateIfs(); std::string ip = ""; if(!ifsInUse.ten) { ip = "10.10.0.1/24"; } else if(!ifsInUse.oneSeven) { ip = "172.16.10.1/24"; } else if(!ifsInUse.oneNine) { ip = "192.168.10.1/24"; } else { llarp::LogError( "Couldn't easily detect a private range to map lokinet onto"); return false; } */ if(ip == "") { llarp::LogError( "Couldn't easily detect a private range to map lokinet onto"); return false; } llarp::LogDebug("Detected " + ip + " is available for use, configuring as such"); // clientini_f << "ifaddr=" << ip << std::endl; // pick interface name std::string ifName = llarp::findFreeLokiTunIfName(); if(ifName == "") { llarp::LogError("Could not find any free lokitun interface names"); return false; } /* clientini_f << "ifname=lokinum" << std::to_string(num) << std::endl; // prefetch-tags=test // enable netns? llarp::LogInfo("Generated hidden service client as " + basepath + "client.ini"); */ f << "ifname=" << ifName << std::endl; f << "ifaddr=" << ip << std::endl; f << "enabled=true" << std::endl; return true; } extern "C" { void llarp_new_config(struct llarp_config **conf) { llarp_config *c = new llarp_config(); *conf = c; } void llarp_free_config(struct llarp_config **conf) { if(*conf) delete *conf; *conf = nullptr; } int llarp_load_config(struct llarp_config *conf, const char *fname) { if(!conf->impl.Load(fname)) return -1; return 0; } void llarp_config_iter(struct llarp_config *conf, struct llarp_config_iterator *iter) { iter->conf = conf; std::map< std::string, llarp::Config::section_t & > sections = { {"network", conf->impl.network}, {"connect", conf->impl.connect}, {"system", conf->impl.system}, {"bind", conf->impl.iwp_links}, {"netdb", conf->impl.netdb}, {"dns", conf->impl.dns}, {"api", conf->impl.api}, {"services", conf->impl.services}}; for(const auto item : conf->impl.router) iter->visit(iter, "router", item.first.c_str(), item.second.c_str()); for(const auto §ion : sections) for(const auto &item : section.second) iter->visit(iter, section.first.c_str(), item.first.c_str(), item.second.c_str()); } }