/*

* Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  Class for parsing and generating 802.11 action frames.

*

*/

#include "core_frame_action.h"

#include "core_tools.h"

#include "am_debug.h"

// ======== MEMBER FUNCTIONS ========

const u16_t CORE_FRAME_ACTION_MIN_LENGTH = 25;

const u16_t CORE_FRAME_ACTION_CATEGORY_INDEX = 24;

// ---------------------------------------------------------------------------

// ---------------------------------------------------------------------------

//

core_frame_action_c* core_frame_action_c::instance(

    const core_frame_dot11_c& frame )

    {

    DEBUG( "core_frame_action_c::instance()" );

    if ( frame.data_length() < CORE_FRAME_ACTION_MIN_LENGTH )

        {

        DEBUG( "core_frame_action_c::instance() - not a valid 802.11 frame, frame is too short" );

        return NULL;

        }

    core_frame_action_c* instance = new core_frame_action_c(

        frame.data_length(),

        frame.data(),

        0 );

    if ( !instance )

        {

        DEBUG( "core_frame_action_c::instance() - unable to create an instance" );

        return NULL;

        }

    if ( instance->type() != core_frame_dot11_c::core_dot11_type_action )

        {

        DEBUG( "core_frame_action_c::instance() - not a valid action frame" );

        delete instance;

        return NULL;

        }

    return instance;

    }

// ---------------------------------------------------------------------------

// ---------------------------------------------------------------------------

//

core_frame_action_c::~core_frame_action_c()

    {

    DEBUG( "core_frame_action_c::~core_frame_action_c()" );

    }

// ---------------------------------------------------------------------------

// ---------------------------------------------------------------------------

//

u8_t core_frame_action_c::category() const

    {

    return data_m[CORE_FRAME_ACTION_CATEGORY_INDEX];

    }

// ---------------------------------------------------------------------------

// ---------------------------------------------------------------------------

//

void core_frame_action_c::set_category( u8_t cat )

    {

    data_m[CORE_FRAME_ACTION_CATEGORY_INDEX] = cat;

    }

// ---------------------------------------------------------------------------

// ---------------------------------------------------------------------------

//

void core_frame_action_c::generate(

    u16_t duration,

    const core_mac_address_s& destination,

    const core_mac_address_s& source,

    const core_mac_address_s& bssid,

    u16_t sequence_control,

    u8_t category )

    {

    ASSERT( !data_length_m );

    ASSERT( max_data_length_m );   

    core_frame_dot11_c::generate(    

        core_frame_dot11_c::core_dot11_type_action,

        duration,

        destination,

        source,

        bssid,

        sequence_control );

    // Category

    data_m[data_length_m++] = category;

    }

// ---------------------------------------------------------------------------

// ---------------------------------------------------------------------------

//

core_frame_action_c::core_frame_action_c(

    u16_t data_length,

    const u8_t* data,

    u16_t max_data_length ) :

    core_frame_dot11_c( data_length, data, max_data_length )

    {

    DEBUG( "core_frame_action_c::core_frame_action_c()" );

    }