    /*====================================================================*
     *
     *   Copyright (c) 2013 Qualcomm Atheros, Inc.
     *
     *   All rights reserved.
     *
     *   Redistribution and use in source and binary forms, with or
     *   without modification, are permitted (subject to the limitations
     *   in the disclaimer below) 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 Qualcomm Atheros nor the names of
     *     its contributors may be used to endorse or promote products
     *     derived from this software without specific prior written
     *     permission.
     *
     *   NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
     *   GRANTED BY THIS LICENSE. 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 COPYRIGHT OWNER
     *   OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     *   NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     *   LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     *   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     *   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
     *   OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     *   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     *
     *--------------------------------------------------------------------*/

    /*====================================================================*
     *
     *   mme.h -
     *
     *   message header definitions and function declarations;
     *
     *.  Qualcomm Atheros HomePlug AV Powerline Toolkit
     *:  Copyright (c) 2009-2013 by Qualcomm Atheros Inc. ALL RIGHTS RESERVED;
     *;  For demonstration and evaluation only; Not for production use.
     *
     *   Contributor(s):
     *      Charles Maier <cmaier@qca.qualcomm.com>
     *      Matthieu Poullet <m.poullet@avm.de>
     *
     *--------------------------------------------------------------------*/

    #ifndef MME_HEADER
    #define MME_HEADER

    /*====================================================================*
     *   system header files;
     *--------------------------------------------------------------------*/

    #include <stdio.h>
    #include <stdint.h>
    #include <unistd.h>

    /*====================================================================*
     *   custom header files;
     *--------------------------------------------------------------------*/

    #include "../ether/ether.h"
    #include "../ether/channel.h"
    #include "../mme/homeplug.h"
    #include "../mme/qualcomm.h"

    /*====================================================================*
     *   manage cross-platform structure packing;
     *--------------------------------------------------------------------*/

    #ifndef __packed
    #ifdef __GNUC__
    #define __packed __attribute__ ((packed))
    #else
    #define __packed
    #endif
    #endif

    /*====================================================================*
     *   Ethernet, HomePlug and Qualcomm Frame headers;
     *--------------------------------------------------------------------*/

    #ifndef __GNUC__
    #pragma pack (push, 1)
    #endif

    typedef struct __packed ethernet_hdr

    {
    	uint8_t ODA [ETHER_ADDR_LEN];
    	uint8_t OSA [ETHER_ADDR_LEN];
    	uint16_t MTYPE;
    }

    ethernet_hdr;
    typedef struct __packed homeplug_hdr

    {
    	uint8_t MMV;
    	uint16_t MMTYPE;
    }

    homeplug_hdr;
    typedef struct __packed homeplug_fmi

    {
    	uint8_t MMV;
    	uint16_t MMTYPE;
    	uint8_t FMSN;
    	uint8_t FMID;
    }

    homeplug_fmi;
    typedef struct __packed qualcomm_hdr

    {
    	uint8_t MMV;
    	uint16_t MMTYPE;
    	uint8_t OUI [ETHER_ADDR_LEN >> 1];
    }

    qualcomm_hdr;
    typedef struct __packed qualcomm_fmi

    {
    	uint8_t MMV;
    	uint16_t MMTYPE;
    	uint8_t FMSN;
    	uint8_t FMID;
    	uint8_t OUI [ETHER_ADDR_LEN >> 1];
    }

    qualcomm_fmi;

    #ifndef __GNUC__
    #pragma pack (pop)
    #endif

    /*====================================================================*
     *   Composite message formats;
     *--------------------------------------------------------------------*/

    #ifndef __GNUC__
    #pragma pack (push, 1)
    #endif

    typedef struct __packed message

    {
    	struct ethernet_hdr ethernet;
    	uint8_t content [ETHERMTU];
    }

    MESSAGE;
    typedef struct __packed homeplug

    {
    	struct ethernet_hdr ethernet;
    	struct homeplug_fmi homeplug;
    	uint8_t content [ETHERMTU - sizeof (struct homeplug_fmi)];
    }

    HOMEPLUG;
    typedef struct __packed qualcomm

    {
    	struct ethernet_hdr ethernet;
    	struct qualcomm_fmi qualcomm;
    	uint8_t content [ETHERMTU - sizeof (struct qualcomm_fmi)];
    }

    QUALCOMM;

    #ifndef __GNUC__
    #pragma pack (pop)
    #endif

    /*====================================================================*
     *   functions;
     *--------------------------------------------------------------------*/

    void MMEPeek (void const * memory, size_t extent, FILE * fp);
    void ARPCPeek (void const * memory, size_t extent, FILE * fp);
    void ARPCWrite (signed fd, void const * memory, size_t extent);
    void ARPCPrint (FILE * fp, void const * memory, size_t extent);

    /*====================================================================*
     *   functions;
     *--------------------------------------------------------------------*/

    char const * MMEName (uint16_t MMTYPE);
    char const * MMEMode (uint16_t MMTYPE);
    char const * MMECode (uint16_t MMTYPE, uint8_t MSTATUS);

    /*====================================================================*
     *   header encode functions;
     *--------------------------------------------------------------------*/

    signed EthernetHeader (void * memory, const uint8_t peer [], const uint8_t host [], uint16_t protocol);
    signed HomePlugHeader (struct homeplug_hdr *, uint8_t MMV, uint16_t MMTYPE);
    signed QualcommHeader (struct qualcomm_hdr *, uint8_t MMV, uint16_t MMTYPE);
    signed HomePlugHeader1 (struct homeplug_fmi *, uint8_t MMV, uint16_t MMTYPE);
    signed QualcommHeader1 (struct qualcomm_fmi *, uint8_t MMV, uint16_t MMTYPE);

    /*====================================================================*
     *   header decode functions;
     *--------------------------------------------------------------------*/

    signed UnwantedMessage (void const * memory, size_t extent, uint8_t MMV, uint16_t MMTYPE);
    signed FirmwareMessage (void const * memory);

    /*====================================================================*
     *   intermmediate level Ethernet send/receive functions;
     *--------------------------------------------------------------------*/

    ssize_t sendmessage (struct channel const *, struct message *, ssize_t length);
    ssize_t readmessage (struct channel const *, struct message *, uint8_t MMV, uint16_t MMTYPE);

    /*====================================================================*
     *
     *--------------------------------------------------------------------*/

    #endif

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