1 // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 /**

    17  @file

    18  @internalComponent

    19 */

    20 

    21 #include <bluetooth/logger.h>

    22 #include <es_sock.h>

    23 #include "BnepTypes.h"

    24 #include "RBnepFilterMultiAddrSetRequestControl.h"

    25 

    26 #include "TBnepBTDevAddr.h"

    27 

    28 #ifdef __FLOG_ACTIVE

    29 _LIT8(KLogComponent, LOG_COMPONENT_PAN_BNEP);

    30 #endif

    31 

    32 /**

    33    Retrieve one value pair from a multicast address filter control

    34    @note This method should be called repeatedly until all the values are read out (ie. return value from the last pair is KErrEof)

    35    @param aStartValue The start value for the multicast address range

    36    @param aEndValue The end value of the multicast address range

    37    @param aIndex The index of the multicast address filter pairs, starting from zero.

    38    @return KErrNone if there any more addresses in the list, or KErrEof when there are no more addresses left

    39    @internalComponent

    40 */

    41 TInt RBnepFilterMultiAddrSetRequestControl::MultiAddrRange (TBnepBTDevAddr& aStartAddr, TBnepBTDevAddr& aEndAddr, TUint aIndex)

    42     {

    43     LOG_FUNC

    44     LOG2(_L8("RBnepFilterMultiAddrSet[%x]: Getting multicast address pair, index %d..."), this, aIndex);

    45     // since this might be (probably is) from another device, check their quoted size against the size of the packet we've got

    46     TInt length = Length();

    47     TInt multiAddrLength = static_cast<TInt>(MulticastAddressListLength());

    48     TInt preamble = static_cast<TInt>(KSizeOfBnepControlType + KSizeOfMultiAddrFilterListLength);

    49 

    50     if(multiAddrLength <= 0)

    51         {

    52         return KErrNotFound;

    53         }

    54 

    55     if(length < multiAddrLength + preamble)

    56         {

    57         LOG3(_L8("RBnepFilterMultiAddrSet[%x]: Multicast address list length is invalid - our mbuf chain length (minus control type and length headers) %d, claimed length %d"), this, (Length() - (KSizeOfBnepControlType + KSizeOfMultiAddrFilterListLength)), MulticastAddressListLength());

    58         return KErrArgument;

    59         }

    60 

    61     TUint currentPair = (aIndex*(2*KSizeOfMultiAddr) + KMultiAddrListFirstPairFieldOffset);

    62 	TInt rerr = aStartAddr.SetAddress(*this, currentPair);

    63 	if(rerr == KErrNone)

    64 		{

    65 		rerr = aEndAddr.SetAddress(*this, currentPair + KSizeOfMultiAddr);

    66 		}

    67 	

    68     if(rerr != KErrNone || MulticastAddressListLength() <= (currentPair + (2*KSizeOfMultiAddr))) // check if this is the last pair

    69         {

    70         LOG1(_L8("RBnepFilterMultiAddrSet[%x]: ...last item in list - returning KErrEof"), this);

    71         return KErrEof;

    72         }

    73     else

    74         {

    75         LOG1(_L8("RBnepFilterMultiAddrSet[%x]: ...more items in list - returning KErrNone"), this);

    76         return KErrNone;

    77         }

    78     }

    79 

    80 /**

    81    Return the length of the multicast address list

    82    @internalComponent

    83 */

    84 TUint16 RBnepFilterMultiAddrSetRequestControl::MulticastAddressListLength ()

    85     {

    86     LOG_FUNC

    87     TUint16 length;

    88     length = BigEndian::Get16((First()->Ptr() + KMultiAddrListLengthFieldOffset));

    89     LOG1(_L8("...multicast address list length %d..."), length);

    90     return length;

    91     }