src/options.h

   1 /*
   2  *  anytun
   3  *
   4  *  The secure anycast tunneling protocol (satp) defines a protocol used
   5  *  for communication between any combination of unicast and anycast
   6  *  tunnel endpoints.  It has less protocol overhead than IPSec in Tunnel
   7  *  mode and allows tunneling of every ETHER TYPE protocol (e.g.
   8  *  ethernet, ip, arp ...). satp directly includes cryptography and
   9  *  message authentication based on the methodes used by SRTP.  It is
  10  *  intended to deliver a generic, scaleable and secure solution for
  11  *  tunneling and relaying of packets of any protocol.
  12  *
  13  *
  14  *  Copyright (C) 2007-2008 Othmar Gsenger, Erwin Nindl,
  15  *                          Christian Pointner <satp@wirdorange.org>
  16  *
  17  *  This file is part of Anytun.
  18  *
  19  *  Anytun is free software: you can redistribute it and/or modify
  20  *  it under the terms of the GNU General Public License version 3 as
  21  *  published by the Free Software Foundation.
  22  *
  23  *  Anytun is distributed in the hope that it will be useful,
  24  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  25  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  26  *  GNU General Public License for more details.
  27  *
  28  *  You should have received a copy of the GNU General Public License
  29  *  along with anytun.  If not, see <http://www.gnu.org/licenses/>.
  30  */
  31
  32 #ifndef _OPTIONS_H_
  33 #define _OPTIONS_H_
  34
  35 #include "datatypes.h"
  36 #include "buffer.h"
  37 #include "threadUtils.hpp"
  38 #include <list>
  39
  40 class syntax_error : public std::runtime_error
  41 {
  42 public:
  43   syntax_error(std::string t, u_int32_t p) : runtime_error(t), pos(p) {};
  44   u_int32_t pos;
  45 };
  46 std::ostream& operator<<(std::ostream& stream, syntax_error const& error);
  47
  48 class OptionHost
  49 {
  50 public:
  51   OptionHost() : addr(""), port("") {};
  52   OptionHost(std::string addrPort) { init(addrPort); };
  53   OptionHost(std::string a, std::string p) : addr(a), port(p) {};
  54
  55   void init(std::string addrPort);
  56
  57   std::string addr;
  58         std::string port;
  59 };
  60 typedef std::list<OptionHost> HostList;
  61 std::istream& operator>>(std::istream& stream, OptionHost& host);
  62
  63 class OptionRoute
  64 {
  65 public:
  66   OptionRoute() : net_addr(""), prefix_length(0) {};
  67   OptionRoute(std::string route) { init(route); };
  68   OptionRoute(std::string n, u_int16_t p) : net_addr(n), prefix_length(p) {};
  69
  70   void init(std::string route);
  71
  72   std::string net_addr;
  73   u_int16_t prefix_length;
  74 };
  75 typedef std::list<OptionRoute> RouteList;
  76 std::istream& operator>>(std::istream& stream, OptionRoute& route);
  77
  78 class Options
  79 {
  80 public:
  81   static Options& instance();
  82
  83   bool parse(int argc, char* argv[]);
  84   void printUsage();
  85   void printOptions();
  86
  87   std::string getProgname();
  88   Options& setProgname(std::string p);
  89   bool getDaemonize();
  90   Options& setDaemonize(bool d);
  91   bool getChroot();
  92   Options& setChroot(bool b);
  93   std::string getUsername();
  94   Options& setUsername(std::string u);
  95   std::string getChrootDir();
  96   Options& setChrootDir(std::string c);
  97   std::string getPidFile();
  98   Options& setPidFile(std::string p);
  99
 100   std::string getFileName();
 101   Options& setFileName(std::string f);
 102   std::string getBindToAddr();
 103   Options& setBindToAddr(std::string b);
 104   std::string getBindToPort();
 105   Options& setBindToPort(std::string b);
 106
 107   std::string getLocalAddr();
 108   Options& setLocalAddr(std::string l);
 109   std::string getLocalPort();
 110   Options& setLocalPort(std::string l);
 111   std::string getRemoteAddr();
 112   Options& setRemoteAddr(std::string r);
 113   std::string getRemotePort();
 114   Options& setRemotePort(std::string r);
 115
 116   std::string getLocalSyncAddr();
 117   Options& setLocalSyncAddr(std::string l);
 118   std::string getLocalSyncPort();
 119   Options& setLocalSyncPort(std::string l);
 120         HostList getRemoteSyncHosts();
 121
 122   std::string getDevName();
 123   Options& setDevName(std::string d);
 124   std::string getDevType();
 125   Options& setDevType(std::string d);
 126   std::string getIfconfigParamLocal();
 127   Options& setIfconfigParamLocal(std::string i);
 128   std::string getIfconfigParamRemoteNetmask();
 129   Options& setIfconfigParamRemoteNetmask(std::string i);
 130   std::string getPostUpScript();
 131   Options& setPostUpScript(std::string p);
 132   RouteList getRoutes();
 133
 134   sender_id_t getSenderId();
 135   Options& setSenderId(sender_id_t s);
 136   mux_t getMux();
 137   Options& setMux(mux_t m);
 138   window_size_t getSeqWindowSize();
 139   Options& setSeqWindowSize(window_size_t s);
 140
 141   std::string getCipher();
 142   Options& setCipher(std::string c);
 143   std::string getAuthAlgo();
 144   Options& setAuthAlgo(std::string a);
 145   std::string getKdPrf();
 146   Options& setKdPrf(std::string k);
 147   int8_t getLdKdr();
 148   Options& setLdKdr(int8_t l);
 149   std::string getPassphrase();
 150   Options& setPassphrase(std::string p);
 151   Options& setKey(std::string k);
 152   Buffer getKey();
 153   Options& setSalt(std::string s);
 154   Buffer getSalt();
 155
 156
 157 private:
 158   Options();
 159   ~Options();
 160   Options(const Options &l);
 161   void operator=(const Options &l);
 162
 163   static Options* inst;
 164   static ::Mutex instMutex;
 165   class instanceCleaner {
 166     public: ~instanceCleaner() {
 167       if(Options::inst != 0)
 168         delete Options::inst;
 169     }
 170   };
 171   friend class instanceCleaner;
 172
 173   ::SharedMutex mutex;
 174
 175   std::string progname_;
 176   bool daemonize_;
 177   bool chroot_;
 178   std::string username_;
 179   std::string chroot_dir_;
 180   std::string pid_file_;
 181
 182   std::string file_name_;
 183   OptionHost bind_to_;
 184
 185   OptionHost local_;
 186   OptionHost remote_;
 187
 188   OptionHost local_sync_;
 189         HostList remote_sync_hosts_;
 190
 191   std::string dev_name_;
 192   std::string dev_type_;
 193   std::string ifconfig_param_local_;
 194   std::string ifconfig_param_remote_netmask_;
 195   std::string post_up_script_;
 196   RouteList routes_;
 197
 198   sender_id_t sender_id_;
 199   mux_t mux_;
 200   window_size_t seq_window_size_;
 201
 202   std::string cipher_;
 203   std::string auth_algo_;
 204   std::string kd_prf_;
 205   int8_t ld_kdr_;
 206   std::string passphrase_;
 207   Buffer key_;
 208   Buffer salt_;
 209 };
 210
 211 extern Options& gOpt;
 212
 213 #endif