/* * 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 anytun.org * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 * as published by the Free Software Foundation. * * This program 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 this program (see the file COPYING included with this * distribution); if not, write to the Free Software Foundation, Inc., * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include #include #include #include #include "datatypes.h" #include "anyctrOptions.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() : key_(u_int32_t(0)), salt_(u_int32_t(0)) { progname_ = "anyctr"; remote_addr_ = ""; remote_port_ = 4444; ifconfig_param_remote_netmask_ = "255.255.255.0"; seq_window_size_ = 100; kd_prf_ = "aes-ctr"; mux_ = 0; network_prefix_length_ = 32; } 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_HEXSTRING_PARAM(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])); \ 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]); \ 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]; argc--; std::queue host_port_queue; for(int i=1; argc > 0; ++i) { std::string str(argv[i]); argc--; if(str == "-h" || str == "--help") return false; PARSE_SCALAR_PARAM("-r","--remote-host", remote_addr_) PARSE_SCALAR_PARAM("-o","--remote-port", remote_port_) PARSE_SCALAR_PARAM("-n","--prefix", ifconfig_param_remote_netmask_) PARSE_SCALAR_PARAM("-w","--window-size", seq_window_size_) PARSE_SCALAR_PARAM("-m","--mux", mux_) PARSE_SCALAR_PARAM("-l","--prefix-len", network_prefix_length_) PARSE_HEXSTRING_PARAM("-K","--key", key_) PARSE_HEXSTRING_PARAM("-A","--salt", salt_) PARSE_SCALAR_PARAM("-k","--kd-prf", kd_prf_) 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 true; } void Options::printUsage() { std::cout << "USAGE:" << std::endl; std::cout << "anyctr [-h|--help] prints this..." << std::endl; std::cout << " [-r|--remote-host] remote host" << std::endl; std::cout << " [-o|--remote-port] remote port" << std::endl; std::cout << " [-n|--prefix] remote subnet for route" << std::endl; std::cout << " [-w|--window-size] seqence number window size" << std::endl; std::cout << " [-m|--mux] the multiplex id to use" << std::endl; std::cout << " [-l|--prefix-len] network prefix length" << std::endl; std::cout << " [-K|--key] master key to use for encryption" << std::endl; std::cout << " [-A|--salt] master salt to use for encryption" << std::endl; std::cout << " [-k|--kd-prf] key derivation pseudo random function" << std::endl; } void Options::printOptions() { Lock lock(mutex); std::cout << "Options:" << std::endl; std::cout << "remote_addr='" << remote_addr_ << "'" << std::endl; std::cout << "remote_port='" << remote_port_ << "'" << std::endl; std::cout << "ifconfig_param_local='" << ifconfig_param_local_ << "'" << std::endl; std::cout << "ifconfig_param_remote_netmask='" << ifconfig_param_remote_netmask_ << "'" << std::endl; std::cout << "seq_window_size='" << seq_window_size_ << "'" << std::endl; std::cout << "mux_id='" << mux_ << "'" << std::endl; std::cout << "network_prefix_length='" << network_prefix_length_ << "'" << std::endl; std::cout << "key=" << key_.getHexDumpOneLine() << std::endl; std::cout << "salt=" << salt_.getHexDumpOneLine() << std::endl; std::cout << "kd_prf='" << kd_prf_ << "'" << std::endl; } std::string Options::getProgname() { Lock lock(mutex); return progname_; } Options& Options::setProgname(std::string p) { Lock lock(mutex); progname_ = p; return *this; } std::string Options::getRemoteAddr() { Lock lock(mutex); return remote_addr_; } Options& Options::setRemoteAddr(std::string r) { Lock lock(mutex); remote_addr_ = r; return *this; } u_int16_t Options::getRemotePort() { return remote_port_; } Options& Options::setRemotePort(u_int16_t r) { remote_port_ = r; return *this; } Options& Options::setRemoteAddrPort(std::string addr, u_int16_t port) { Lock lock(mutex); remote_addr_ = addr; remote_port_ = port; return *this; } std::string Options::getIfconfigParamRemoteNetmask() { Lock lock(mutex); return ifconfig_param_remote_netmask_; } Options& Options::setIfconfigParamRemoteNetmask(std::string i) { Lock lock(mutex); ifconfig_param_remote_netmask_ = i; return *this; } window_size_t Options::getSeqWindowSize() { return seq_window_size_; } Options& Options::setSeqWindowSize(window_size_t s) { seq_window_size_ = s; return *this; } std::string Options::getKdPrf() { Lock lock(mutex); return kd_prf_; } Options& Options::setKdPrf(std::string k) { Lock lock(mutex); kd_prf_ = k; return *this; } u_int16_t Options::getMux() { Lock lock(mutex); return mux_; } Options& Options::setMux(u_int16_t m) { Lock lock(mutex); mux_ = m; return *this; } u_int16_t Options::getNetworkPrefixLength() { Lock lock(mutex); return network_prefix_length_; } Options& Options::setNetworkPrefixLength(u_int16_t l) { Lock lock(mutex); network_prefix_length_ = l; return *this; } Buffer Options::getKey() { Lock lock(mutex); return key_; } Options& Options::setKey(std::string k) { Lock lock(mutex); key_ = k; return *this; } Buffer Options::getSalt() { Lock lock(mutex); return salt_; } Options& Options::setSalt(std::string s) { Lock lock(mutex); salt_ = s; return *this; }