--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wlan_bearer/wlanengine/wlan_common/wlanengine_common_3.1/src/core_frame_ethernet.cpp	Tue Feb 02 02:03:13 2010 +0200
@@ -0,0 +1,265 @@
+/*
+* Copyright (c) 2006-2007 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 Ethernet frames
+*
+*/
+
+
+#include "core_frame_ethernet.h"
+#include "core_tools.h"
+#include "am_debug.h"
+
+const u16_t CORE_ETHERNET_MIN_LENGTH = 14;
+const u16_t CORE_ETHERNET_DESTINATION_INDEX = 0;
+const u16_t CORE_ETHERNET_SOURCE_INDEX = 6;
+const u16_t CORE_ETHERNET_TYPE_INDEX = 12;
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+core_frame_ethernet_c* core_frame_ethernet_c::instance(
+    u16_t data_length,
+    const u8_t* data,
+    bool_t is_copied )
+    {
+    DEBUG( "core_frame_ethernet_c::instance()" );
+    DEBUG1( "core_frame_ethernet_c::instance() - is_copied %u",
+        is_copied );   
+    
+    if ( data_length < CORE_ETHERNET_MIN_LENGTH )
+        {
+        DEBUG( "core_frame_ethernet_c::instance() - not a valid Ethernet frame, frame is too short" );
+        
+        return NULL;
+        }
+
+    u8_t* buffer = const_cast<u8_t*>( data );
+    u16_t buffer_length( 0 );
+
+    if ( is_copied )
+        {
+        buffer_length = data_length;
+        buffer = new u8_t[buffer_length];
+        
+        if ( !buffer )
+            {
+            DEBUG( "core_frame_ethernet_c::instance() - not able to allocate buffer for copying" );
+        
+            return NULL;            
+            }
+
+        core_tools_c::copy(
+            buffer,
+            data,
+            buffer_length );
+        }
+
+    core_frame_ethernet_c* instance = new core_frame_ethernet_c(
+        data_length,
+        buffer,
+        buffer_length );
+    if ( !instance )
+        {
+        DEBUG( "core_frame_ethernet_c::instance() - unable to create an instance" );
+        if ( is_copied )
+            {
+            delete[] buffer;
+            }
+
+        return NULL;
+        }
+
+    return instance;
+    }
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+// 
+core_frame_ethernet_c* core_frame_ethernet_c::instance(
+    u16_t max_data_length,
+    const core_mac_address_s& destination,
+    const core_mac_address_s& source,
+    u16_t type )
+    {
+    DEBUG( "core_frame_ethernet_c::instance()" );
+
+    u8_t* buffer = new u8_t[max_data_length];
+    if ( !buffer )
+        {
+        DEBUG( "core_frame_ethernet_c::instance() - unable create the internal buffer" );
+        }
+
+    core_frame_ethernet_c* instance =
+        new core_frame_ethernet_c( 0, buffer, max_data_length );
+    if ( !instance )
+        {
+        DEBUG( "core_frame_ethernet_c::instance() - unable to create an instance" );
+        delete[] buffer;
+
+        return NULL;
+        }
+
+    instance->generate(
+        destination,
+        source,
+        type );
+
+    return instance;
+    }
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//      
+core_frame_ethernet_c::~core_frame_ethernet_c()
+    {
+    DEBUG( "core_frame_ethernet_c::~core_frame_ethernet_c" );
+
+    /** 
+     * If maximum frame length has been defined, we have allocated
+     * the frame buffer ourselves.
+     */    
+    if ( max_data_length_m )
+        {
+        delete[] data_m;
+        }    
+
+    data_m = NULL;
+    }
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+core_mac_address_s core_frame_ethernet_c::destination() const
+    {
+    return mac_address( CORE_ETHERNET_DESTINATION_INDEX );
+    }
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+core_mac_address_s core_frame_ethernet_c::source() const
+    {
+    return mac_address( CORE_ETHERNET_SOURCE_INDEX );
+    }
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+u16_t core_frame_ethernet_c::type() const
+    {
+    return core_tools_c::get_u16_big_endian( data_m, CORE_ETHERNET_TYPE_INDEX );
+    }
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+core_mac_address_s core_frame_ethernet_c::mac_address(
+    u16_t index ) const
+    {
+    core_mac_address_s mac( ZERO_MAC_ADDR );
+    
+    core_tools_c::copy(
+        &mac.addr[0],
+        &data_m[index],
+        MAC_ADDR_LEN );
+
+    return mac;
+    }
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+u16_t core_frame_ethernet_c::data_length() const
+    {
+    return data_length_m;
+    }
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//   
+const u8_t* core_frame_ethernet_c::data() const
+    {
+    return data_m;
+    }
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+u16_t core_frame_ethernet_c::payload_data_length() const
+    {
+    return data_length_m - CORE_ETHERNET_MIN_LENGTH;
+    }
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+const u8_t* core_frame_ethernet_c::payload_data() const
+    {
+    return data_m + CORE_ETHERNET_MIN_LENGTH;
+    }
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+void core_frame_ethernet_c::core_frame_ethernet_c::generate(
+    const core_mac_address_s& destination,
+    const core_mac_address_s& source,
+    u16_t type )
+    {
+    ASSERT( !data_length_m );
+    ASSERT( max_data_length_m );   
+
+    // Destination MAC
+    core_tools_c::copy(
+        &data_m[data_length_m],
+        &destination.addr[0],
+        MAC_ADDR_LEN );
+    data_length_m += MAC_ADDR_LEN;        
+
+    // Source MAC
+    core_tools_c::copy(
+        &data_m[data_length_m],
+        &source.addr[0],
+        MAC_ADDR_LEN );
+    data_length_m += MAC_ADDR_LEN;    
+
+    // Ethernet Type
+    u16_t temp16 = core_tools_c::convert_host_to_big_endian(
+        type  );
+    core_tools_c::copy(
+        &data_m[data_length_m],
+        reinterpret_cast<u8_t*>( &temp16 ),
+        sizeof( temp16 ) );
+    data_length_m += sizeof( temp16 );
+    }
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+core_frame_ethernet_c::core_frame_ethernet_c(
+    u16_t data_length,
+    const u8_t* data,
+    u16_t max_data_length ) :
+    data_length_m( data_length ),
+    data_m( NULL ),
+    max_data_length_m( max_data_length )
+    {
+    DEBUG( "core_frame_ethernet_c::core_frame_ethernet_c" );
+
+    /**
+     * The reason the const is discarded is that the same pointer
+     * is used when we have allocated the frame buffer ourselves.
+     */
+    data_m = const_cast<u8_t*>( data );
+    }