CAIPList.hpp

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/*
Copyright (c) 2000, The JAP-Team 
All rights reserved.
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are permitted provided that the following conditions are met:

  - Redistributions of source code must retain the above copyright notice, 
    this list of conditions and the following disclaimer.

  - Redistributions in binary form must reproduce the above copyright notice, 
    this list of conditions and the following disclaimer in the documentation and/or 
    other materials provided with the distribution.

  - Neither the name of the University of Technology Dresden, Germany nor the names of its contributors 
    may be used to endorse or promote products derived from this software without specific 
    prior written permission. 

  
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS 
OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 
AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS
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*/
#ifndef __CA_IP_LIST
#define __CA_IP_LIST
#include "CAMutex.hpp"

typedef struct _iplist_t IPLISTENTRY;
typedef struct _iplist_t* PIPLIST;
typedef volatile PIPLIST VOLATILE_PIPLIST;

struct _iplist_t
  {
    VOLATILE_PIPLIST next; 
    UINT8 ip[2]; 
    volatile UINT8 count; 
  };

#define MAX_IP_CONNECTIONS CLIENTS_PER_IP

class CAIPList
  {
    public:
      CAIPList();
      CAIPList(UINT32 allowedConnections);
      ~CAIPList();
      SINT32 insertIP(const UINT8 ip[4]);
      SINT32 removeIP(const UINT8 ip[4]);
    private:
      UINT32    m_allowedConnections;
      volatile  VOLATILE_PIPLIST* m_HashTable;
#if defined (_DEBUG)
      //used for 'encryption' of IP-address for privacy aware logging
      UINT8*    m_Random; //seems to be the best value for MD5, which operates on x*512-64 bit (52*8+4*8=512-64)
#endif
      CAMutex*  m_pMutex;


  };
#endif