--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/telephonyserverplugins/simatktsy/utility/src/cbertlv.cpp Tue Feb 02 01:41:59 2010 +0200
@@ -0,0 +1,221 @@
+// Copyright (c) 2005-2009 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:
+// Name : CBerTlv.cpp
+// Part of : Series 60 / utility
+// Based on 3GPP TS 11.14 V8.8.0
+// Version : 1.0
+// EXTERNAL RESOURCES
+//
+
+
+
+// Include Files
+#include "CBerTlv.h" // Header of this class
+#include "tflogger.h" // For logging
+
+// External Data Structures
+// none
+
+// External Function Prototypes
+// none
+
+// LOCAL CONSTANTS AND MACROS
+// none
+
+// MODULE DATA STRUCTURES
+// none
+
+// Local Data Structures
+// none
+
+// Local Function Prototypes
+// none
+
+// LOCAL FUNCTIONS
+// none
+
+// MEMBER FUNCTIONS
+
+//=============================================================================
+
+// -----------------------------------------------------------------------------
+// CBerTlv::CBerTlv
+// Constructor
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CBerTlv::CBerTlv
+ (
+ // None
+ )
+ {
+ // None
+ }
+
+// -----------------------------------------------------------------------------
+// CBerTlv::TlvByTagValue
+// Find TLV by tag value. aTlv is set to point to found TLV. If there are more
+// than one TLV with the same tag then itemNbr can be used to select which one
+// is returned. If no tags are found return KErrNotFound else KErrNone.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C TInt CBerTlv::TlvByTagValue
+ (
+ CTlv* aTlv, // TLV
+ TUint8 aTlvTagValue, // TLV identifier
+ TInt itemNbr // Item number
+ )
+ {
+ TFLOGSTRING("UTILITY: CBerTlv::TlvByTagValue");
+ TInt currentTlv( 0 );
+ TInt tlvLength( 0 );
+ TInt index( 0 );
+
+ // TLV start index
+ TInt ind( KCommonTlvHeaderLength );
+ TUint8 berTlvLength( 0 );
+ if ( KTwoByteLengthCoding == iData[KTlvLengthStartPosition] )
+ {
+ berTlvLength = iData[KTlvLengthStartPosition + 1];
+ ind = ind + 1;
+ }
+ else
+ {
+ berTlvLength = iData[KTlvLengthStartPosition];
+ }
+
+ for ( TInt i = 0; i < berTlvLength; i += tlvLength )
+ {
+ // First determine if the length of the TLV is coded with 1 or 2 bytes.
+ if ( KTwoByteLengthCoding == iData[ind + 1] )
+ {
+ // Length is coded with 2 bytes -> 1 extra byte required to be
+ // added to total length. Also TLV header bytes (2) must be added
+ // to total length
+ tlvLength = iData[ind + 2] + KTlvHeaderLength + 1;
+ }
+ else
+ {
+ // TLV header bytes (2) must be added to total length
+ tlvLength = iData[ind + 1] + KTlvHeaderLength;
+ }
+
+ currentTlv = iData[ind]&KTagValueMask;
+
+ // Check if TLV in current index is the one that we are searching for
+ if ( aTlvTagValue == currentTlv )
+ {
+ if( index == itemNbr)
+ {
+ TPtrC8 data = ( iData.Mid( ind , tlvLength ) );
+ aTlv->SetData( data );
+ return KErrNone;
+ }
+ else
+ {
+ index++;
+ }
+ }
+
+ ind += tlvLength;
+ }
+
+ return KErrNotFound;
+ }
+
+// -----------------------------------------------------------------------------
+// CBerTlv::TlvByTagValueMulti
+// Find several TLVs by tag value. It is assumed that TLVs are sequential. aTlv
+// is set to point to TLV sequence. If no tags are found return KErrNotFound
+// else KErrNone.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C TInt CBerTlv::TlvByTagValueMulti
+ (
+ CTlv* aTlv, // TLV to fill
+ TUint8 aTlvTagValue // Tag of TLV to find
+ )
+ {
+ TFLOGSTRING("UTILITY: CBerTlv::TlvByTagValueMulti");
+ TInt currentTlv( 0 );
+ TInt16 tlvLength( 0 );
+ TInt indMulti( 0 );
+ TInt16 multiLength( 0 );
+ // TLV start index
+ TInt ind( KCommonTlvHeaderLength );
+ TUint8 berTlvLength;
+ // First determine if the length of the BerTLV is coded with 1 or 2 bytes.
+ if ( KTwoByteLengthCoding == iData[KTlvLengthStartPosition] )
+ {
+ berTlvLength = iData[KTlvLengthStartPosition + 1];
+ ind = ind + 1;
+ }
+ else
+ {
+ berTlvLength = iData[KTlvLengthStartPosition];
+ }
+
+ for ( TInt i = 0; i < berTlvLength; i+= tlvLength )
+ {
+ // First determine if the length of the TLV is coded with 1 or 2 bytes.
+ if ( KTwoByteLengthCoding == iData[ind + 1] )
+ {
+ // Length is coded with 2 bytes -> real length is in second byte.
+ // first byte is 81 and it is tag for 2 byte length coding.
+ tlvLength = static_cast<TInt16>( iData[ind + 0x02] +
+ KTlvHeaderLength + 1 );
+ }
+ else
+ {
+ // TLV header bytes (2) must be added to total length
+ tlvLength = static_cast<TInt16>( iData[ind + 1] +
+ KTlvHeaderLength );
+ }
+
+ currentTlv = iData[ind]&KTagValueMask;
+
+ // Check if TLV in current index is the one that we are searching for
+ if ( aTlvTagValue == currentTlv && multiLength == 0x00 )
+ {
+ // Save first tag position
+ indMulti = ind;
+ multiLength = tlvLength;
+ }
+ // Add length
+ if ( aTlvTagValue == currentTlv && indMulti != ind )
+ {
+ multiLength = static_cast<TInt16>( multiLength + tlvLength );
+ }
+
+ // If last tag, return
+ if ( (i + tlvLength) >= berTlvLength )
+ {
+ TPtrC8 data = ( iData.Mid( indMulti , multiLength ) );
+ aTlv->SetData( data );
+ break;
+ }
+ ind += tlvLength;
+ }
+
+ if( 0 == indMulti)
+ {
+ return KErrNotFound;
+ }
+ else
+ {
+ return KErrNone;
+ }
+ }
+
+
+//End Of File