multimediacommscontroller/mmccinterface/src/mmccsecureinterface.cpp
author vnuitven <>
Mon, 06 Sep 2010 17:32:13 +0530
branchrcs
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permissions -rw-r--r--
RCS feature support in MCE/MCC. Provides APIs to do RCS chat and file transfer as per RCS specificaitons. For both os these MCE uses the MSRP protocol.
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/*
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* Copyright (c) 2006 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 "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:    Class is used for configuring secure RTP.
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*
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*/
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#include "mmccsecureinterface.h"
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#include "mmccinterfacelogs.h"
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#include "mccdef.h"
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#include "mccinternaldef.h"
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#include "mmcccryptocontextcontainer.h"
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#include "mmcccryptocontext.h"
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// ======== MEMBER FUNCTIONS ========
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// -----------------------------------------------------------------------------
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// CMccEvent::CMccEvent
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// C++ default constructor can NOT contain any code, that
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// might leave.
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// -----------------------------------------------------------------------------
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//
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CMccSecureInterface::CMccSecureInterface( CMccInterface& aInterface )
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    : iInterface( aInterface ), iMessageDest( KMccControllerUidInterface )
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    {  
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    }
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// ---------------------------------------------------------------------------
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// CMccInterface::ConstructL
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// ---------------------------------------------------------------------------
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//
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void CMccSecureInterface::ConstructL( )
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    {
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    __INTERFACE( "CMccSecureInterface::ConstructL" )
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    iInterface.GetController( iController );
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    iContextContainer = CMccCryptoContextContainer::NewL();
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    }
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// ---------------------------------------------------------------------------
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// CMccSecureInterface::NewL()
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// ---------------------------------------------------------------------------
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//
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EXPORT_C CMccSecureInterface* CMccSecureInterface::NewL( CMccInterface& aInterface )
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    {
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    CMccSecureInterface* self = new(ELeave) CMccSecureInterface( aInterface );
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    CleanupStack::PushL( self );
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    self->ConstructL( );
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    CleanupStack::Pop( self );
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    return self;
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    }
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// ---------------------------------------------------------------------------
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// CMccSecureInterface::~CMccSecureInterface
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// ---------------------------------------------------------------------------
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//
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CMccSecureInterface::~CMccSecureInterface()
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    {      
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    delete iContextContainer;
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    }
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// ---------------------------------------------------------------------------
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// CMccSecureInterface::CreateContext
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// ---------------------------------------------------------------------------
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//
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EXPORT_C TInt CMccSecureInterface::CreateContext( const TDesC8& aMasterKey,
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    							                  const TDesC8& aSaltKey,
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    							                  TUint32& aContextId,
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    							                  const TDesC8& aParams )
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    {
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    __INTERFACE( "MccSecureInterface::CreateContext" )
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    TInt err = KErrNone;
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    TMccSrtpMasterKeyPckg masterKeyPckg =
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                    static_cast<const TMccSrtpMasterKeyPckg&>( aMasterKey );    
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    TMccSrtpMasterSaltPckg masterSaltPckg = 
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                    static_cast<const TMccSrtpMasterSaltPckg&>( aSaltKey );       
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    TMccSrtpCryptoParamsPckg cryptoParamsPckg =
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                    static_cast<const TMccSrtpCryptoParamsPckg&>( aParams );
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    err = iContextContainer->CreateContext( masterKeyPckg(),
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                                            masterSaltPckg(),
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                                            aContextId,
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    							            cryptoParamsPckg() );
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    __INTERFACE_INT1( "MccSecureInterface::CreateContext, exit with ", err )
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    return err;
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    }
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// ---------------------------------------------------------------------------
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// CMccSecureInterface::UpdateContext
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// ---------------------------------------------------------------------------
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//
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EXPORT_C TInt CMccSecureInterface::UpdateContext( const TDesC8& aMasterKey,
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    					                          const TDesC8& aSaltKey,
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    					                          TUint32 aContextId,
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    					                          const TDesC8& aParams )
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    {
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    __INTERFACE( "MccSecureInterface::UpdateContext" )
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    TInt err( KErrNone );
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    TMccCryptoContext* contextToUpdate;
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    err = iContextContainer->GetContext( aContextId, contextToUpdate );
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    if ( KErrNone != err )
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        {
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        return err;     
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        }
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    TMccSrtpMasterKeyPckg masterKeyPckg =
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                    static_cast<const TMccSrtpMasterKeyPckg&>( aMasterKey );    
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    TMccSrtpMasterSaltPckg masterSaltPckg = 
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                    static_cast<const TMccSrtpMasterSaltPckg&>( aSaltKey );       
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    TMccSrtpCryptoParamsPckg cryptoParamsPckg =
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                    static_cast<const TMccSrtpCryptoParamsPckg&>( aParams );  
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    TMccCryptoContext cryptoContextCandidate( 0,
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                                              masterKeyPckg(),
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                                              masterSaltPckg(),
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                                              cryptoParamsPckg() ); 
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    // Validate candidates params                                           
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    err = cryptoContextCandidate.ValidateContext();                                         
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    if ( KErrNone != err )
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        {
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        return err;     
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        }
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    // Get crypto context binding destination
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    // if returns KErrNotFound context isn't binded yet
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    TMccSecurityDestination securityDest;
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    err = contextToUpdate->GetDestinationInfo( securityDest.iSessionID, securityDest.iLinkID, 
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                                               securityDest.iStreamID, securityDest.iEndpointID );
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    if ( KErrNotFound != err )
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        {        
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        cryptoContextCandidate.SetDestinationInfo( securityDest.iSessionID,
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                                                   securityDest.iLinkID, 
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                                                   securityDest.iStreamID,
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                                                   securityDest.iEndpointID );
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        TMccCryptoContextPckg cryptoContextPckg( cryptoContextCandidate );
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        TMccSecurityDestinationBuffer securityDestPckg( securityDest );
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        err = iController.CustomCommandSync( iMessageDest,
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                                             EMccBindContextIntoStream,
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                                             cryptoContextPckg,
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                                             securityDestPckg );
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        if ( KErrNone != err )
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            {
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            return err;
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            }
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        }
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    err = iContextContainer->UpdateContext( aContextId, cryptoContextCandidate );
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    __INTERFACE_INT1( "MccSecureInterface::UpdateContext, exit with ", err )   
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    return err;   
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    }
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// ---------------------------------------------------------------------------
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// CMccSecureInterface::RemoveContext
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// ---------------------------------------------------------------------------
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//
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EXPORT_C TInt CMccSecureInterface::RemoveContext( TUint32 aContextId )
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    {
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    __INTERFACE( "MccSecureInterface::RemoveContext" )
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    TInt err( KErrNone );
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    TMccCryptoContext* contextToRemove;       
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    err = iContextContainer->GetContext( aContextId, contextToRemove );
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    if ( KErrNotFound == err )
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        {
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        return err;     
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        }
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    // Get crypto context binding destination
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    // if returns KErrNotFound context isn't binded yet
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    TMccSecurityDestination securityDest;
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    err = contextToRemove->GetDestinationInfo( securityDest.iSessionID, securityDest.iLinkID, 
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                                               securityDest.iStreamID, securityDest.iEndpointID );
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    if ( KErrNotFound != err )
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        {            
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        TMccSecurityDestinationBuffer securityDestPckg( securityDest );
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        err = iController.CustomCommandSync( iMessageDest,
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                                             EMccRemoveContext,
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                                             KNullDesC8,
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                                             securityDestPckg );
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        }
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    err = iContextContainer->RemoveContext( aContextId );
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    __INTERFACE_INT1( "MccSecureInterface::RemoveContext, exit with ", err )
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    return err;
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    }
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// ---------------------------------------------------------------------------
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// CMccSecureInterface::Bind
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// ---------------------------------------------------------------------------
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//
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EXPORT_C TInt CMccSecureInterface::Bind( TUint32 aSessionId, TUint32 aLinkId,
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    			                         TUint32 aStreamId, TUint32 aEndPointId,
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    			                         TUint32 aContextId )
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    {
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    __INTERFACE( "MccSecureInterface::Bind IN" )
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    TInt err = KErrNone;
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    TMccCryptoContext* context;
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    err = iContextContainer->GetContext( aContextId, context );
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    if ( KErrNotFound == err )
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        {
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        return err;     
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        }
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    TMccSecurityDestination securityDest; 
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    err = context->GetDestinationInfo( securityDest.iSessionID, securityDest.iLinkID, 
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                                       securityDest.iStreamID, securityDest.iEndpointID );
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    // Checks if crypto context is already binded to destination. Can't bind twice
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    if ( KErrNotFound != err )
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        {
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        return KErrArgument;
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        }
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    TMccCryptoContextPckg cryptoContextPckg( *context );   
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    securityDest.iSessionID = aSessionId;
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    securityDest.iLinkID = aLinkId;
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    securityDest.iStreamID = aStreamId;
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    securityDest.iEndpointID = aEndPointId;
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    TMccSecurityDestinationBuffer securityDestPckg( securityDest );
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    err = iController.CustomCommandSync( iMessageDest,
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                                         EMccBindContextIntoStream,
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                                         cryptoContextPckg,
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                                         securityDestPckg
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                                         );
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    __INTERFACE_INT1( "MccSecureInterface::Bind, exit with ", err )
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    if ( KErrNone == err )
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        {
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        context->SetDestinationInfo( aSessionId, aLinkId, aStreamId, aEndPointId );
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        }
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    return err;
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    }