zrtp.h

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/*
 * zrtp.h
 *
 * ZRTP protocol handler
 *
 * OPAL Library
 *
 * Copyright (C) 2007 Post Increment
 *
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 * the License for the specific language governing rights and limitations
 * under the License.
 *
 * The Original Code is OPAL Library.
 *
 * The Initial Developer of the Original Code is Post Increment
 *
 * Contributor(s): ______________________________________.
 *
 * $Log: zrtp.h,v $
 * Revision 2.2  2007/05/21 04:30:30  dereksmithies
 * put #ifndef _PTLIB_H protection around the include of ptlib.h
 *
 * Revision 2.1  2007/02/12 02:44:27  csoutheren
 * Start of support for ZRTP
 *
 * Revision 2.1  2007/02/10 07:08:41  craigs
 * Start of support for ZRTP
 *
 */

#ifndef __OPAL_ZRTP_H
#define __OPAL_ZRTP_H

#ifdef P_USE_PRAGMA
#pragma interface
#endif

#ifndef _PTLIB_H
#include <ptlib.h>
#endif

#include <opal/buildopts.h>

#if defined(OPAL_ZRTP)

#include <rtp/rtp.h>
#include <opal/connection.h>

namespace PWLibStupidLinkerHacks {
  extern int libZRTPLoader;
};

extern "C" {
struct zrtp_global_ctx;
};

//
//  this class holds the parameters required for a ZRTP session
//

class OpalZRTPSecurityMode : public OpalSecurityMode
{
  PCLASSINFO(OpalZRTPSecurityMode, OpalSecurityMode);
};


//
//  this class implements ZRTP over UDP
//

class OpalZRTP_UDP : public SecureRTP_UDP
{
  PCLASSINFO(OpalZRTP_UDP, SecureRTP_UDP);
  public:
    OpalZRTP_UDP(
      PHandleAggregator * _aggregator,   
      unsigned id,                       
      BOOL remoteIsNAT                  
    );

    ~OpalZRTP_UDP();

    SendReceiveStatus OnSendData   (RTP_DataFrame & frame);
    SendReceiveStatus OnReceiveData(RTP_DataFrame & frame);
    SendReceiveStatus OnSendControl(RTP_ControlFrame & frame, PINDEX & len);
    SendReceiveStatus OnReceiveControl(RTP_ControlFrame & frame);
};

#endif // OPAL_ZRTP

#endif // __OPAL_ZRTP_H

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