src/routingTable.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 _ROUTINGTABLE_H
  33 #define _ROUTINGTABLE_H
  34
  35 #include <map>
  36 #include <deque>
  37
  38 #include "threadUtils.hpp"
  39 #include "datatypes.h"
  40 //#include "routingTableEntry.h"
  41 #include "networkAddress.h"
  42 #include "networkPrefix.h"
  43 typedef std::map<NetworkPrefix,u_int16_t> RoutingMap;
  44
  45 class RoutingTable
  46 {
  47 public:
  48         static RoutingTable& instance();
  49         RoutingTable();
  50         ~RoutingTable();
  51         void addRoute(const NetworkPrefix & ,u_int16_t);
  52         void delRoute(const NetworkPrefix & );
  53         u_int16_t getRoute(const NetworkAddress &);
  54         bool empty();
  55         void clear();
  56   Mutex& getMutex();
  57         u_int16_t* getOrNewRoutingTEUnlocked(const NetworkPrefix & addr);
  58         uint16_t getCountUnlocked();
  59         RoutingMap::iterator getBeginUnlocked();
  60         RoutingMap::iterator getEndUnlocked();
  61
  62 private:
  63   static Mutex instMutex;
  64         static RoutingTable* inst;
  65   class instanceCleaner {
  66     public: ~instanceCleaner() {
  67      if(RoutingTable::inst != 0)
  68        delete RoutingTable::inst;
  69    }
  70         };
  71         RoutingTable(const RoutingTable &s);
  72   void operator=(const RoutingTable &s);
  73         RoutingMap routes_;
  74   Mutex mutex_;
  75 };
  76
  77 extern RoutingTable& gRoutingTable;
  78
  79 #endif