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 anytun.org <satp@wirdorange.org>
  15  *
  16  *  This program is free software; you can redistribute it and/or modify
  17  *  it under the terms of the GNU General Public License version 2
  18  *  as published by the Free Software Foundation.
  19  *
  20  *  This program is distributed in the hope that it will be useful,
  21  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  *  GNU General Public License for more details.
  24  *
  25  *  You should have received a copy of the GNU General Public License
  26  *  along with this program (see the file COPYING included with this
  27  *  distribution); if not, write to the Free Software Foundation, Inc.,
  28  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  29  */
  30
  31 #ifndef _ROUTINGTABLE_H
  32 #define _ROUTINGTABLE_H
  33
  34 #include <map>
  35 #include <deque>
  36
  37 #include "threadUtils.hpp"
  38 #include "datatypes.h"
  39 //#include "routingTableEntry.h"
  40 #include "networkAddress.h"
  41 #include "networkPrefix.h"
  42 typedef std::map<NetworkPrefix,u_int16_t> RoutingMap;
  43
  44 class RoutingTable
  45 {
  46 public:
  47         static RoutingTable& instance();
  48         RoutingTable();
  49         ~RoutingTable();
  50         void addRoute(const NetworkPrefix & ,u_int16_t);
  51         void delRoute(const NetworkPrefix & );
  52         u_int16_t getRoute(const NetworkAddress &);
  53         bool empty();
  54         void clear();
  55   Mutex& getMutex();
  56         u_int16_t* getOrNewRoutingTEUnlocked(const NetworkPrefix & addr);
  57         uint16_t getCountUnlocked();
  58         RoutingMap::iterator getBeginUnlocked();
  59         RoutingMap::iterator getEndUnlocked();
  60
  61 private:
  62   static Mutex instMutex;
  63         static RoutingTable* inst;
  64   class instanceCleaner {
  65     public: ~instanceCleaner() {
  66      if(RoutingTable::inst != 0)
  67        delete RoutingTable::inst;
  68    }
  69         };
  70         RoutingTable(const RoutingTable &s);
  71   void operator=(const RoutingTable &s);
  72         RoutingMap routes_;
  73   Mutex mutex_;
  74 };
  75
  76 extern RoutingTable& gRoutingTable;
  77
  78 #endif