author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 03 May 2010 14:14:02 +0300 | |
changeset 17 | 41a8eba36f74 |
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/* |
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* Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of the License "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: Declaration of the WlanElementLocator class. |
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* |
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*/ |
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/* |
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* %version: 8 % |
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*/ |
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#ifndef WLAN_ELEMENT_LOCATOR_H |
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#define WLAN_ELEMENT_LOCATOR_H |
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/** |
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* Provides methods to locate 802.11 information elements. |
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* |
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* @lib wlanumac.lib |
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* @since S60 v3.1 |
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*/ |
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class WlanElementLocator |
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{ |
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public: |
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enum TWlanLocateStatus |
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{ |
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EWlanLocateOk, |
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EWlanLocateElementNotFound |
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}; |
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/** |
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* Constructor. |
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* |
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* @since S60 3.1 |
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* @param aStart (IN) beginning of the area from where to locate |
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* elements |
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* @param aLength (IN) length of the area to search |
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*/ |
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WlanElementLocator( const TUint8* aStart, TUint16 aLength ); |
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/** |
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* Return requested information element data. |
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* @param aIeId Id of the requested IE data. See 802dot11.h |
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* @param aIeLength (OUT) Length of the IE. Zero if IE not found. |
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* @param aIeData (OUT) Pointer to the beginning of the IE data. |
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* NULL if IE not found. |
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* @param aValidateLength (IN) If ETrue, the indicated length of the IE |
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* data part is checked for validity against the relevant |
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* specification. |
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* If EFalse, the validity check is not done. |
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* @return Locate status. |
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*/ |
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TWlanLocateStatus InformationElement( |
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TUint8 aIeId, |
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TUint8& aIeLength, |
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const TUint8** aIeData, |
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TBool aValidateLength = ETrue ); |
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/** |
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* Return requested information element data. |
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* |
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* @since S60 3.2 |
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* @param aIeId (IN) Id of the requested IE data. See 802dot11.h |
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* @param aIeOui (IN) OUI of the requested IE data. See 802dot11.h |
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* @param aIeOuiType (IN) OUI Type of the requested IE data. |
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* See 802dot11.h |
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* @param aIeLength (OUT) Length of the IE. Zero if IE not found. |
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* @param aIeData (OUT) Pointer to the beginning of the IE data. |
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* NULL if IE not found. |
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* @return Locate status. |
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*/ |
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TWlanLocateStatus InformationElement( |
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TUint8 aIeId, |
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const TIeOui& aIeOui, |
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TUint8 aIeOuiType, |
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TUint8& aIeLength, |
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const TUint8** aIeData ); |
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|
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/** |
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* Return requested information element data. |
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* @param aIeId (IN) Id of the requested IE data. See 802dot11.h |
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* @param aIeOui (IN) OUI of the requested IE data. See 802dot11.h |
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* @param aIeOuiType (IN) OUI Type of the requested IE data. |
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* See 802dot11.h |
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* @param aIeOuiSubtype (IN) OUI Subtype of the requested IE data. |
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* See 802dot11.h |
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* @param aIeLength (OUT) Length of the IE. Zero if IE not found. |
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* @param aIeData (OUT) Pointer to the beginning of the IE data. |
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* NULL if IE not found. |
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* @return Locate status. |
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*/ |
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TWlanLocateStatus InformationElement( |
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TUint8 aIeId, |
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const TIeOui& aIeOui, |
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TUint8 aIeOuiType, |
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TUint8 aIeOuiSubtype, |
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TUint8& aIeLength, |
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const TUint8** aIeData ); |
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|
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private: |
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|
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/** |
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* Return the first information element data. |
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* @param aIeId (OUT) Id of the IE. See 802dot11.h. |
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* @param aIeLength (OUT) Length of the IE. Zero if IE not found. |
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* @param aIeData (OUT) Pointer to the beginning of the IE data. |
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* NULL if IE not found. |
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* @return Locate status. |
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*/ |
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TWlanLocateStatus FirstIE( |
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TUint8& aIeId, |
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TUint8& aIeLength, |
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const TUint8** aIeData ); |
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|
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/** |
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* Return next information element data. |
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* @param aIeId (OUT) Id of the IE. See 802dot11.h. |
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* @param aIeLength (OUT) Length of the IE. Zero if IE not found. |
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* @param aIeData (OUT) Pointer to the beginning of the IE data. |
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* NULL if IE not found. |
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* @return Locate status. |
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*/ |
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TWlanLocateStatus NextIE( |
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TUint8& aIeId, |
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TUint8& aIeLength, |
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const TUint8** aIeData ); |
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|
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/** |
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* Return current information element data. |
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* @param aIeId (OUT) Id of the IE. See 802dot11.h. |
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* @param aIeLength (OUT) Length of the IE. Zero if IE not found. |
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* @param aIeData (OUT) Pointer to the beginning of the IE data. |
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* NULL if IE not found. |
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* @return Locate status. |
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*/ |
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TWlanLocateStatus CurrentIE( |
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TUint8& aIeId, |
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TUint8& aIeLength, |
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const TUint8** aIeData ) const; |
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|
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/** |
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* Validates the indicated length of the IE data part (aIeLength) against |
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* the relevant specification. |
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* @param aIeId (IN) Id of the IE. See 802dot11.h. |
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* @param aIeLength (IN) Length of the IE. |
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* @param aIeData (IN) Pointer to the beginning of the IE data. NULL |
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* if not relevant for the validity check. |
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* @param aIeOuiType (IN) OUI Type of the IE (if relevant) |
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* @param aIeOuiSubtype (IN) OUI Subtype of the IE (if relevant) |
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* @return |
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*/ |
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WlanElementLocator::TWlanLocateStatus ValidIE( |
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TUint8 aIeId, |
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TUint8 aIeLength, |
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const TUint8* aIeData = 0, |
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TUint8 aIeOuiType = KWmmElemOuiType, |
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TUint8 aIeOuiSubtype = KWmmInfoElemOuiSubType ) const; |
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|
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// Prohibit copy constructor. |
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WlanElementLocator( const WlanElementLocator& ); |
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// Prohibit assigment operator. |
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WlanElementLocator& operator= |
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( const WlanElementLocator& ); |
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|
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private: // data |
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|
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/** start of the search area */ |
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const TUint8* iStart; |
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/** length of the search area */ |
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TUint16 iLength; |
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/** Iterator for going through elements */ |
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const TUint8* iIterator; |
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}; |
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|
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#endif // WLAN_ELEMENT_LOCATOR_H |