eap.hxx

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/*                Diameter related protocols                              */
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/* $Id: eap.hxx,v 1.10 2004/06/17 21:13:36 yohba Exp $ */
/* 
   EAP header file.
   EAP application programs and programs for each of EAP mechanisms 
   MUST include this file.

   Written by Yoshihiro Ohba
   
*/

#ifndef __EAP_HXX__
#define __EAP_HXX__

/* Structure for EAP Finite State Machine */

#include <ace/Basic_Types.h>
#include <ace/Message_Block.h>
#include <ace/Message_Queue.h>
#include <ace/Message_Queue.h>
#include <ace/Synch.h>
#include <list>
#include "diameter_parser_api.h"

#ifdef WIN32
   #if defined(EAP_EXPORT)
       #define EAP_EXPORTS __declspec(dllexport)
   #else
       #define EAP_EXPORTS __declspec(dllimport)
   #endif
#else
   #define EAP_EXPORTS
   #define EAP_IMPORTS
#endif

typedef ACE_Message_Queue<ACE_MT_SYNCH> EapMessageQueue;

enum EapCode {
  Request = 1,
  Response,
  Success,
  Failure
};

class EapType
{
 public:
  EapType() {}

  EapType(ACE_Byte type) : 
    type(type), vendorId(0), vendorType(0) {}

  EapType(ACE_UINT16 vid, ACE_UINT16 vty) : 
    type(254), vendorId(vid), vendorType(vty) {}

  bool operator==(EapType ty) 
    {
      if ((ty.type == type) && 
          (ty.vendorId == vendorId) && 
          (ty.vendorType == vendorType))
        return true;
      return false;
    }

  bool operator!=(EapType ty) 
    {
      return !(*this == ty);
    }

  inline bool IsVSE() { return (type==254 && (*this != EapType(0,0))); }
  ACE_Byte  type;
  ACE_UINT16 vendorId;
  ACE_UINT16 vendorType;
};

enum EapRole {
  Peer,
  Authenticator
};

class EapHeader
{
 public:
  EapHeader() : code(0), identifier(0), length(0) {}
  ACE_Byte code;
  ACE_Byte identifier;
  ACE_UINT16 length;
};

const ACE_UINT16 EapMaxPduLength=ACE_UINT16_MAX;

class EapPayload {};

class EapRequest : public EapPayload
{
public:
  EapRequest() {}
  EapRequest(EapType ty) : type(ty) {}
  ~EapRequest() {}
  inline EapType& GetType() { return type; }
  inline void SetType(EapType ty) { type=ty; }
  inline bool IsVSE() { return isVSE; }
  inline void SetVSE() { isVSE=true; }
protected:
  EapType  type;

  bool isVSE;
};

class EapResponse: public EapRequest 
{
 public:
  EapResponse() : EapRequest() {}
  EapResponse(EapType ty) : EapRequest(ty) {}
  ~EapResponse() {}
};

class EapTypeList : public std::list<EapType>
{
public:

  bool Search(EapType type) 
  {
    EapTypeList::iterator i;
    for (i=begin(); i!=end(); i++)
      {
        if (*i == type)
          return true;
      }
    return false;
  }

  bool IsVSE() 
  {
    EapTypeList::iterator i;
    for (i=begin(); i!=end(); i++)
      {
        if ((*i).IsVSE())
          return true;
      }
    return false;
  }
};

class EapNak: public EapResponse
{
public:
  EapNak() : EapResponse(EapType(3)) {}
  EapTypeList& TypeList() { return typeList; }
private:
  EapTypeList typeList;
};

class EapIdentity: public EapRequest
{
public:
  EapIdentity() : EapRequest(EapType(1)) {}

  std::string& Identity() { return identity; }

private:
  std::string identity;
};

class EapNotification: public EapRequest
{
public:
  EapNotification() : EapRequest(EapType(2)) {}

  std::string& Notification() { return notification; }

private:
  std::string notification;
};

class EapMD5Challenge: public EapRequest
{
public:
  EapMD5Challenge() : EapRequest(EapType(4)) {}

  std::string& Value() { return value; }

  void Value(std::string& value) { this->value = value; }

  std::string& Name() { return name; }

  void Name(std::string& name) { this->name = name; }

private:
  std::string value;
  std::string name;
};

#endif

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