diff -r 000000000000 -r 56b72877c1cb hotspotfw/hsserver/src/hssscanlist.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/hotspotfw/hsserver/src/hssscanlist.cpp Thu Dec 17 09:20:28 2009 +0200 @@ -0,0 +1,131 @@ +/* +* Copyright (c) 2002-2006 Nokia Corporation and/or its subsidiary(-ies). +* All rights reserved. +* This component and the accompanying materials are made available +* under the terms of "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: Implementation of the ScanList class. +* +*/ + + + +#include "hssscanlist.h" +#include "hssscanoffsets.h" + +// ================= MEMBER FUNCTIONS ======================= + +// --------------------------------------------------------------------------- +// +// --------------------------------------------------------------------------- +// +HssScanList::HssScanList():count_m( 0 ), size_m( 0 ) +{ +} + +// --------------------------------------------------------------------------- +// +// --------------------------------------------------------------------------- +// +TUint32 HssScanList::Append( TUint32 size, const HssScanFrame* data_pointer ) +{ + + if( AddPadding( size ) >= ( HSS_SCAN_LIST_DATA_SIZE - size_m ) ) + { + + return HSS_APPEND_FAILED_NO_MEMORY; + } + + TUint8* dst = data_m + size_m; + const TUint8* src = data_pointer; + const TUint8* end = data_pointer + size; + + for ( ; src < end; ++dst, ++src ) + { + *dst = *src; + } + + // The checking has to been done after copying it to the buffer + // due it relies the buffers limits. + if ( CheckData( data_m + size_m ) ) + { // Add data only if it is valid. + size_m += AddPadding( size ); + ++count_m; + } + + return size_m; +} + +// --------------------------------------------------------------------------- +// +// --------------------------------------------------------------------------- +// +TUint32 HssScanList::Append( TUint32 size ) +{ + + if ( CheckData( data_m + size_m ) ) + { // Add data only if it is valid. + size_m += AddPadding( size ); + ++count_m; + } + + return size_m; +} + +// --------------------------------------------------------------------------- +// +// --------------------------------------------------------------------------- +// + +TBool HssScanList::CheckData( HssScanFrame* data ) const +{ + // Check that the data is at the range. + if ( data < data_m || + data > data_m + size_m || + size_m + sizeof( TUint16 ) > HSS_SCAN_LIST_DATA_SIZE ) + { + return false; + } + + // Calculate the length of the data. + TUint16 size = static_cast( *( reinterpret_cast( data + LENGTH_OFFSET ) ) + CNTRL_HEADER_LEN); + + // Check that the whole data fits to the buffer. + if ( data + size > data_m + HSS_SCAN_LIST_DATA_SIZE ) + { + return false; + } + + const TUint8* currentIE; + + // Search mandatory IEs. + for ( TUint i = 0; i < HSS_MANDATORY_IE_LIST_SIZE; ++i ) + { + // Go through all IEs. + for ( currentIE = data + BODY_OFFSET; + ; // No condition here -- it is in the loop. + currentIE += *( currentIE + 1 ) + 2 ) + { + if ( currentIE < data + size ) + { // Still searching... + if ( *currentIE == HSS_MANDATORY_IE_LIST[i] ) + { // We have a match! Lets find out the next one. + break; + } + } + else + { // The IE was not found. + return false; + } + } + } + // Data is ok. + return true; +}