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384 lines
11 KiB
C++
384 lines
11 KiB
C++
#include <config.h>
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#include <config.hpp>
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#include <defaults.hpp>
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#include <fs.hpp>
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#include <ini.hpp>
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#include <logger.hpp>
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#include <mem.hpp>
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#include <net.hpp>
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namespace llarp
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{
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template < typename Config, typename Section >
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static const Section &
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find_section(Config &c, const std::string &name, const Section &fallback)
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{
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if(c.sections.find(name) == c.sections.end())
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return fallback;
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return c.sections[name].values;
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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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std::ifstream f;
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f.open(fname);
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if(f.is_open())
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{
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ini::Parser parser(f);
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auto &top = parser.top();
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router = find_section(top, "router", section_t{});
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network = find_section(top, "network", section_t{});
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connect = find_section(top, "connect", section_t{});
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netdb = find_section(top, "netdb", section_t{});
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dns = find_section(top, "dns", section_t{});
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iwp_links = find_section(top, "bind", section_t{});
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services = find_section(top, "services", section_t{});
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system = find_section(top, "system", section_t{});
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api = find_section(top, "api", section_t{});
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lokid = find_section(top, "lokid", section_t{});
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bootstrap = find_section(top, "bootstrap", section_t{});
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return true;
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}
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return false;
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};
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} // namespace llarp
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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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// abort if client.ini already exists
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if(!asRouter)
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{
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if(fs::exists(basepath + "client.ini", ec) && !overwrite)
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{
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llarp::LogError(
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basepath, "client.ini 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);
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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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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 priviledges and such" << std::endl;
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f << "[system]" << std::endl;
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#ifdef _WIN32
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f << "# ";
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#endif
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f << "user=" << DEFAULT_LOKINET_USER << std::endl;
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#ifdef _WIN32
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f << "# ";
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#endif
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f << "group=" << DEFAULT_LOKINET_GROUP << 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 << "# opennic us resolver" << std::endl;
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f << "upstream=" << DEFAULT_RESOLVER_US << std::endl;
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f << "# opennic eu resolver" << std::endl;
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f << "upstream=" << DEFAULT_RESOLVER_EU << std::endl;
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f << "# opennic au resolver" << std::endl;
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f << "upstream=" << DEFAULT_RESOLVER_AU << 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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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 << 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 << "ifaddr=10.105.0.1/16" << std::endl;
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f << "ifname=lokitun0" << 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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#ifndef _WIN32
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const std::string snappExample_fpath = basepath + "snapp-example.ini";
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// done with fname.ini
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// start client.ini
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// write fname ini
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{
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std::ofstream clientini_f(snappExample_fpath);
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if(f.is_open())
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{
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clientini_f << "# this is an example configuration for a snapp";
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clientini_f << "[example-snapp]" << std::endl;
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clientini_f << "# keyfile is the path to the private key of the snapp"
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<< std::endl;
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clientini_f << "keyfile=" << basepath << "example-snap-keyfile.private"
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<< std::endl;
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clientini_f << "# ifaddr is the ip range to allocate to this snapp"
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<< std::endl;
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clientini_f << "ifaddr=10.55.0.0/16" << std::endl;
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clientini_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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clientini_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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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 persistant 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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#endif
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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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// pick ip
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std::string ip = llarp::findFreePrivateRange();
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/*
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struct privatesInUse ifsInUse = llarp_getPrivateIfs();
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std::string ip = "";
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if(!ifsInUse.ten)
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{
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ip = "10.10.0.1/24";
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}
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else if(!ifsInUse.oneSeven)
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{
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ip = "172.16.10.1/24";
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}
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else if(!ifsInUse.oneNine)
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{
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ip = "192.168.10.1/24";
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}
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else
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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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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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llarp::LogDebug("Detected " + ip
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+ " is available for use, configuring as such");
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// clientini_f << "ifaddr=" << ip << std::endl;
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// pick interface name
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std::string ifName = llarp::findFreeLokiTunIfName();
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if(ifName == "")
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{
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llarp::LogError("Could not find any free lokitun interface names");
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return false;
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}
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/*
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clientini_f << "ifname=lokinum" << std::to_string(num) << std::endl;
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// prefetch-tags=test
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// enable netns?
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llarp::LogInfo("Generated hidden service client as " + basepath
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+ "client.ini");
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*/
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f << "ifname=" << ifName << std::endl;
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f << "ifaddr=" << ip << std::endl;
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f << "enabled=true" << std::endl;
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return true;
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}
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extern "C"
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{
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void
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llarp_new_config(struct llarp_config **conf)
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{
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llarp_config *c = new llarp_config();
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*conf = c;
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}
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void
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llarp_free_config(struct llarp_config **conf)
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{
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if(*conf)
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delete *conf;
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*conf = nullptr;
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}
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int
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llarp_load_config(struct llarp_config *conf, const char *fname)
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{
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if(!conf->impl.Load(fname))
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return -1;
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return 0;
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}
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void
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llarp_config_iter(struct llarp_config *conf,
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struct llarp_config_iterator *iter)
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{
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iter->conf = conf;
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std::map< std::string, llarp::Config::section_t & > sections = {
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{"network", conf->impl.network}, {"connect", conf->impl.connect},
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{"bootstrap", conf->impl.bootstrap}, {"system", conf->impl.system},
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{"netdb", conf->impl.netdb}, {"api", conf->impl.api},
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{"services", conf->impl.services}};
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for(const auto item : conf->impl.router)
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iter->visit(iter, "router", item.first.c_str(), item.second.c_str());
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for(const auto item : conf->impl.dns)
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iter->visit(iter, "dns", item.first.c_str(), item.second.c_str());
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for(const auto item : conf->impl.iwp_links)
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iter->visit(iter, "bind", item.first.c_str(), item.second.c_str());
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for(const auto §ion : sections)
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for(const auto &item : section.second)
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iter->visit(iter, section.first.c_str(), item.first.c_str(),
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item.second.c_str());
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}
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}
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