anyrtpproxy/commandHandler.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 _COMMAND_HANDLER_H_
  32 #define _COMMAND_HANDLER_H_
  33
  34 #include <string>
  35 #include "../datatypes.h"
  36 #include "../PracticalSocket.h"
  37 #include "../syncQueue.h"
  38 #include "portWindow.h"
  39
  40 using std::string;
  41
  42 class CommandHandler
  43 {
  44 public:
  45   CommandHandler(SyncQueue& q, u_int16_t lp, PortWindow &);
  46   CommandHandler(SyncQueue& q, string la, u_int16_t lp, PortWindow &);
  47   ~CommandHandler();
  48
  49   bool isRunning();
  50
  51   #define CMD_REQUEST 'U'
  52   #define CMD_RESPONSE 'L'
  53   #define CMD_DELETE 'D'
  54   #define CMD_VERSION 'V'
  55   #define CMD_INFO 'I'
  56
  57   #define RET_OK "0"
  58   #define RET_ERR_SYNTAX "E1"
  59   #define RET_ERR_UNKNOWN "E2"
  60
  61   #define BASE_VERSION "20040107"
  62   #define SUP_VERSION "20050322"
  63
  64 private:
  65   CommandHandler(const CommandHandler &c);
  66   void operator=(const CommandHandler &c);
  67
  68   static void* run(void* s);
  69   string handle(string command);
  70
  71   string handleRequest(string modifiers, string call_id, string addr, string port, string from_tag, string to_tag);
  72   string handleResponse(string modifiers, string call_id, string addr, string port, string from_tag, string to_tag);
  73   string handleDelete(string call_id, string from_tag, string to_tag);
  74   string handleVersion();
  75   string handleVersionF(string date_code);
  76   string handleInfo();
  77
  78   pthread_t thread_;
  79   SyncQueue& queue_;
  80
  81   bool running_;
  82   UDPSocket control_sock_;
  83   string local_address_;
  84   u_int16_t local_port_;
  85         PortWindow& port_window_;
  86 };
  87
  88
  89 #endif