/* * anytun * * The secure anycast tunneling protocol (satp) defines a protocol used * for communication between any combination of unicast and anycast * tunnel endpoints. It has less protocol overhead than IPSec in Tunnel * mode and allows tunneling of every ETHER TYPE protocol (e.g. * ethernet, ip, arp ...). satp directly includes cryptography and * message authentication based on the methodes used by SRTP. It is * intended to deliver a generic, scaleable and secure solution for * tunneling and relaying of packets of any protocol. * * * Copyright (C) 2007-2008 Othmar Gsenger, Erwin Nindl, * Christian Pointner * * This file is part of Anytun. * * Anytun is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License version 3 as * published by the Free Software Foundation. * * Anytun is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with anytun. If not, see . */ #include #include #include #include #include "options.h" Options* Options::inst = NULL; Mutex Options::instMutex; Options& gOpt = Options::instance(); Options& Options::instance() { Lock lock(instMutex); static instanceCleaner c; if(!inst) inst = new Options(); return *inst; } Options::Options() : control_interface_("0.0.0.0", "22222") { progname_ = "anyrtpproxy"; chroot_ = false; username_ = "nobody"; chroot_dir_ = "/var/run"; daemonize_ = true; pid_file_ = ""; local_addr_ = ""; local_sync_port_ = ""; rtp_start_port_ = 34000; rtp_end_port_ = 35000; no_nat_once_ = false; nat_ = false; } Options::~Options() { } #define PARSE_BOOL_PARAM(SHORT, LONG, VALUE) \ else if(str == SHORT || str == LONG) \ VALUE = true; #define PARSE_INVERSE_BOOL_PARAM(SHORT, LONG, VALUE) \ else if(str == SHORT || str == LONG) \ VALUE = false; #define PARSE_SCALAR_PARAM(SHORT, LONG, VALUE) \ else if(str == SHORT || str == LONG) \ { \ if(argc < 1 || argv[i+1][0] == '-') \ return false; \ std::stringstream tmp; \ tmp << argv[i+1]; \ tmp >> VALUE; \ argc--; \ i++; \ } #define PARSE_SCALAR_PARAM2(SHORT, LONG, VALUE1, VALUE2) \ else if(str == SHORT || str == LONG) \ { \ if(argc < 2 || \ argv[i+1][0] == '-' || argv[i+2][0] == '-') \ return false; \ std::stringstream tmp; \ tmp << argv[i+1] << " " << argv[i+2]; \ tmp >> VALUE1; \ tmp >> VALUE2; \ argc-=2; \ i+=2; \ } #define PARSE_STRING_PARAM(SHORT, LONG, VALUE) \ else if(str == SHORT || str == LONG) \ { \ if(argc < 1 || argv[i+1][0] == '-') \ return false; \ VALUE = std::string(argv[i+1]); \ argc--; \ i++; \ } #define PARSE_HEXSTRING_PARAM_SEC(SHORT, LONG, VALUE) \ else if(str == SHORT || str == LONG) \ { \ if(argc < 1 || argv[i+1][0] == '-') \ return false; \ VALUE = Buffer(std::string(argv[i+1])); \ for(size_t j=0; j < strlen(argv[i+1]); ++j) \ argv[i+1][j] = '#'; \ argc--; \ i++; \ } #define PARSE_CSLIST_PARAM(SHORT, LONG, LIST) \ else if(str == SHORT || str == LONG) \ { \ if(argc < 1 || argv[i+1][0] == '-') \ return false; \ std::stringstream tmp(argv[i+1]); \ /* LIST.clear(); */ \ while (tmp.good()) \ { \ std::string tmp_line; \ getline(tmp,tmp_line,','); \ LIST.push(tmp_line); \ } \ argc--; \ i++; \ } bool Options::parse(int argc, char* argv[]) { Lock lock(mutex); progname_ = argv[0]; std::queue host_port_queue; argc--; for(int i=1; argc > 0; ++i) { std::string str(argv[i]); argc--; if(str == "-h" || str == "--help") return false; PARSE_BOOL_PARAM("-t","--chroot", chroot_) PARSE_BOOL_PARAM("-n","--nat", nat_) PARSE_BOOL_PARAM("-o","--no-nat-once", no_nat_once_) PARSE_SCALAR_PARAM("-u","--user", username_) PARSE_SCALAR_PARAM("-c","--chroot-dir", chroot_dir_) PARSE_INVERSE_BOOL_PARAM("-d","--nodaemonize", daemonize_) PARSE_SCALAR_PARAM("-P","--write-pid", pid_file_) PARSE_SCALAR_PARAM("-i","--interface", local_addr_) PARSE_STRING_PARAM("-s","--control", control_interface_) PARSE_SCALAR_PARAM2("-p","--port-range", rtp_start_port_, rtp_end_port_) PARSE_CSLIST_PARAM("-M","--sync-hosts", host_port_queue) PARSE_SCALAR_PARAM("-S","--sync-port", local_sync_port_) PARSE_SCALAR_PARAM("-I","--sync-interface", local_sync_addr_) else return false; } while(!host_port_queue.empty()) { std::stringstream tmp_stream(host_port_queue.front()); OptionConnectTo oct; getline(tmp_stream,oct.host,':'); if(!tmp_stream.good()) return false; tmp_stream >> oct.port; host_port_queue.pop(); connect_to_.push_back(oct); } return sanityCheck(); } bool Options::sanityCheck() { if(control_interface_.port_ == "") control_interface_.port_ = "22222"; return true; } void Options::printUsage() { std::cout << "USAGE: anyrtpproxy" << std::endl; std::cout << " [-h|--help] prints this..." << std::endl; std::cout << " [-t|--chroot] chroot and drop priviledges" << std::endl; std::cout << " [-u|--username] in case of chroot run as this user" << std::endl; std::cout << " [-c|--chroot-dir] directory to make a chroot to" << std::endl; std::cout << " [-d|--nodaemonize] don't run in background" << std::endl; std::cout << " [-P|--write-pid] write pid to this file" << std::endl; std::cout << " [-i|--interface] local ip address to listen to for RTP packets" << std::endl; std::cout << " [-s|--control] [:] the address/port to listen on for control commands" << std::endl; std::cout << " [-p|--port-range] port range used to relay rtp connections" << std::endl; std::cout << " [-n|--nat] enable permantent automatic nat detection(use only with anytun)" << std::endl; std::cout << " [-o|--no-nat-once] disable automatic nat detection for new connections" << std::endl; std::cout << " [-I|--sync-interface] local unicast(sync) ip address to bind to" << std::endl; std::cout << " [-S|--sync-port] local unicast(sync) port to bind to" << std::endl; std::cout << " [-M|--sync-hosts] :[,:[...]]"<< std::endl; std::cout << " List of Remote Sync Hosts/Ports"<< std::endl; } void Options::printOptions() { Lock lock(mutex); std::cout << "Options:" << std::endl; std::cout << "chroot='" << chroot_ << "'" << std::endl; std::cout << "username='" << username_ << "'" << std::endl; std::cout << "chroot-dir='" << chroot_dir_ << "'" << std::endl; std::cout << "daemonize='" << daemonize_ << "'" << std::endl; std::cout << "pid_file='" << pid_file_ << "'" << std::endl; std::cout << "control-interface='" << control_interface_.toString() << "'" << std::endl; std::cout << "local_addr='" << local_addr_ << "'" << std::endl; std::cout << "rtp_start_port=" << rtp_start_port_ << std::endl; std::cout << "rtp_end_port=" << rtp_end_port_ << std::endl; std::cout << "local_sync_addr='" << local_sync_addr_ << "'" << std::endl; std::cout << "local_sync_port='" << local_sync_port_ << "'" << std::endl; } std::string Options::getProgname() { Lock lock(mutex); return progname_; } bool Options::getChroot() { Lock lock(mutex); return chroot_; } bool Options::getNat() { Lock lock(mutex); return nat_; } bool Options::getNoNatOnce() { Lock lock(mutex); return no_nat_once_; } std::string Options::getUsername() { Lock lock(mutex); return username_; } std::string Options::getChrootDir() { Lock lock(mutex); return chroot_dir_; } bool Options::getDaemonize() { Lock lock(mutex); return daemonize_; } std::string Options::getPidFile() { Lock lock(mutex); return pid_file_; } Host Options::getControlInterface() { Lock lock(mutex); return control_interface_; } std::string Options::getLocalAddr() { Lock lock(mutex); return local_addr_; } Options& Options::setLocalAddr(std::string l) { Lock lock(mutex); local_addr_ = l; return *this; } std::string Options::getLocalSyncAddr() { Lock lock(mutex); return local_sync_addr_; } Options& Options::setLocalSyncAddr(std::string l) { Lock lock(mutex); local_sync_addr_ = l; return *this; } std::string Options::getLocalSyncPort() { Lock lock(mutex); return local_sync_port_; } Options& Options::setLocalSyncPort(std::string l) { Lock lock(mutex); local_sync_port_ = l; return *this; } u_int16_t Options::getRtpStartPort() { return rtp_start_port_; } Options& Options::setRtpStartPort(u_int16_t l) { rtp_start_port_ = l; return *this; } u_int16_t Options::getRtpEndPort() { return rtp_end_port_; } Options& Options::setRtpEndPort(u_int16_t l) { rtp_end_port_ = l; return *this; } ConnectToList Options::getConnectTo() { Lock lock(mutex); return connect_to_; }