networkcontrol/ipcpr/src/ipcprfactory.cpp
branchRCL_3
changeset 58 8d540f55e491
parent 57 abbed5a4b42a
child 59 e36178c55292
child 63 425d8f4f7fa5
equal deleted inserted replaced
57:abbed5a4b42a 58:8d540f55e491
     1 // Copyright (c) 2005-2009 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 // This is part of an ECOM plug-in
       
    15 // 
       
    16 //
       
    17 
       
    18 #include <implementationproxy.h>
       
    19 #include "ipcprfactory.h"	// CIPNetworkProviderFactory
       
    20 #include "ipcprprovider.h"
       
    21 #include <es_sock.h>        // KCommsNetworkLayerId
       
    22 #include <ss_glob.h>
       
    23 #include <shimcprfactory.h>
       
    24 #include <esockmessages.h>
       
    25 #include <commdbconnpref.h> // TConnPref
       
    26 #include <commsdattypesv1_1.h> // CommsDat
       
    27 #include <es_connpref.h>
       
    28 #include <in_sock.h> //KAfInet
       
    29 
       
    30 using namespace CommsDat;
       
    31 using namespace ESock;
       
    32 
       
    33 const TInt KIPConnectionProviderImplementationUid=0x102070EF;
       
    34 
       
    35 /**
       
    36 Data required for instantiating ECOM Plugin
       
    37 */
       
    38 const TImplementationProxy ImplementationTable[] = 
       
    39 	{
       
    40 	IMPLEMENTATION_PROXY_ENTRY(KIPConnectionProviderImplementationUid, CIPNetworkProviderFactory::NewL)
       
    41 	};
       
    42 
       
    43 /**
       
    44 ECOM Implementation Factory
       
    45 */
       
    46 EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)
       
    47     {
       
    48     aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy);
       
    49     return ImplementationTable;
       
    50    }
       
    51 
       
    52 CIPNetworkProviderFactory* CIPNetworkProviderFactory::NewL(TAny* aParentContainer)
       
    53 	{
       
    54  	return new (ELeave) CIPNetworkProviderFactory(KIPConnectionProviderFactoryId, *(reinterpret_cast<CConnectionFactoryContainer*>(aParentContainer)));
       
    55 	}
       
    56    
       
    57 CIPNetworkProviderFactory::CIPNetworkProviderFactory(TUint aFactoryId, CConnectionFactoryContainer& aParentContainer)
       
    58 	: CConnectionProviderFactoryBase(aFactoryId,aParentContainer)
       
    59 	{
       
    60 	}
       
    61    
       
    62 CConnectionProviderBase* CIPNetworkProviderFactory::DoCreateProviderL()
       
    63 	{
       
    64     return CIPNetworkConnectionProvider::NewL(*this);
       
    65 	}
       
    66 
       
    67 MProviderSelector* CIPNetworkProviderFactory::DoSelectProvider( Meta::SMetaData& aPreferences, ISelectionNotify& aSelectionNotify, const RMessagePtr2* aMessage )
       
    68 	{
       
    69 	//create self destructing object to select a provider
       
    70 	CIPConnectionSelector* selector = new CIPConnectionSelector(aSelectionNotify,*this);
       
    71 	TInt error;
       
    72 	if (selector == 0)
       
    73 		{
       
    74 		error = KErrNoMemory;
       
    75 		}
       
    76 	else
       
    77 		{
       
    78 		error = selector->Select(aPreferences, aMessage);
       
    79 		}
       
    80 
       
    81 	if (error != KErrNone)
       
    82 		{
       
    83 		aSelectionNotify.SelectComplete(0, error);
       
    84 		selector = NULL; //The selector will delete itself.
       
    85 		}
       
    86 
       
    87  
       
    88 	return selector;
       
    89   	}
       
    90 
       
    91 MProviderSelector* CIPNetworkProviderFactory::DoSelectNextLayerProvider( Meta::SMetaData& aPreferences, ISelectionNotify& aSelectionNotify, const RMessagePtr2* /*aMessage*/ )
       
    92 	{//at the moment always uses the CConnectionProviderFactoryShim::SelectProviderL
       
    93    (void)aPreferences;
       
    94    (void)aSelectionNotify;
       
    95    return NULL;
       
    96 	}
       
    97 	
       
    98 void CIPNetworkProviderFactory::DoEnumerateConnectionsL(RPointerArray<TConnectionInfo>& aConnectionInfoPtrArray)
       
    99 	{
       
   100 	CConnectionFactoryContainer* connectionFactories = SockManGlobals::Get()->iConnectionFactories;
       
   101 	ASSERT(connectionFactories);
       
   102 	CConnectionProviderFactoryBase* factory = connectionFactories->FindFactory(KShimConnectionProviderFactoryId);
       
   103 	ASSERT(factory);
       
   104 	factory->EnumerateConnectionsL(aConnectionInfoPtrArray);
       
   105 	}
       
   106 
       
   107 
       
   108 //CIPConnectionSelector--
       
   109 TInt CIPConnectionSelector::Cancel()
       
   110 	{
       
   111 	return Cancel(KErrCancel,NULL);
       
   112 	}
       
   113 
       
   114 TInt CIPConnectionSelector::Cancel(TInt aReason, const RMessage2* aMessage)
       
   115 	{
       
   116 	CActive::Cancel(); // There may be an outstanding selection request.
       
   117 
       
   118     //CIPConnectionSelector will be deleted from Detach().
       
   119     //Detach will always be called as a result of Cancel() in the same call stack,
       
   120     //but only after all progress notifications have been passed up towards the
       
   121     //CConnection.
       
   122     TInt ret = KErrNotReady;
       
   123     if(iNextLayerSelector !=NULL)
       
   124     	{
       
   125     	ret = iNextLayerSelector->Cancel(aReason, aMessage);
       
   126     	}
       
   127 
       
   128 	iNotify.Detach(); //"PrevLayer"::Detach() will be called only once in the same call stack.
       
   129 	return ret;
       
   130 	}
       
   131 
       
   132 TInt CIPConnectionSelector::Select(Meta::SMetaData& aPreferences, const RMessagePtr2* aMessage)
       
   133     {
       
   134 	__FLOG_OPEN(KIpcprTag, KIpcprSubTag);
       
   135 	__FLOG_1(_L8("CIPConnectionSelector::Select() %08x"), this);
       
   136 
       
   137 	STypeId tId = STypeId::CreateSTypeId(aPreferences.GetTypeId());
       
   138     ASSERT(tId.iUid.iUid == KESockMessagesImplementationUid);
       
   139 	ASSERT(tId.iType == EESockMessageConnStart);	
       
   140 
       
   141 	if (aMessage)
       
   142 		iSelectMessage = *aMessage; // aMessage will be passed on to shim
       
   143 #ifdef SYMBIAN_NETWORKING_UMTSR5	
       
   144      //Here secure Id of application is stored and will be kept with  
       
   145     if(!iSelectMessage.IsNull())
       
   146      {
       
   147 		iAppSecureId=iSelectMessage.SecureId();
       
   148      }
       
   149 #endif // SYMBIAN_NETWORKING_UMTSR5	            
       
   150  
       
   151     TRAPD(r, SelectL(aPreferences));
       
   152 	
       
   153 	if (r!=KErrNone && iNextLayerSelector==NULL)
       
   154 		{
       
   155 		__FLOG_1(_L8("Error during selection of current  - should detech now %08x"), this);
       
   156  		Detach();
       
   157 		return r;
       
   158  		}
       
   159  		
       
   160  	TRAP(r,SelectLinkLayerL());
       
   161  	if (r != KErrNone)
       
   162  		{
       
   163  		__FLOG_1(_L8("Error during select of link layer - detach should be called by the link layer %08x"), this);
       
   164  		}
       
   165 	
       
   166 	return r;
       
   167 	}
       
   168 
       
   169 void CIPConnectionSelector::SelectL(Meta::SMetaData& aPreferences)
       
   170 	{
       
   171 	ASSERT(iDbs==0);
       
   172 #ifdef SYMBIAN_NON_SEAMLESS_NETWORK_BEARER_MOBILITY
       
   173 	iDbs = CMDBSession::NewL(KCDVersion1_2);
       
   174 #else
       
   175 	iDbs = CMDBSession::NewL(KCDVersion1_1);
       
   176 #endif
       
   177 
       
   178 	// Reveal hidden or private IAP records if a licensee has chosen to protect a record
       
   179 	// using one of these flags - the API to do this is public so internal components
       
   180 	// have to support the use of such records.
       
   181 	iDbs->SetAttributeMask( ECDHidden | ECDPrivate );
       
   182 	
       
   183 	ASSERT(iConnStart==0);
       
   184 	iConnStart = CConnStart::NewL();
       
   185 	iConnStart->Copy(aPreferences);
       
   186 
       
   187 	// Get "defaultSnap" and "promptForSnap" from CommsDat.
       
   188     CCDGlobalSettingsRecord* gs = LoadGlobalSettingsRecordLC();
       
   189 	TBool promptForSnap = gs->iPromptForSnap;
       
   190 	iAPid = gs->iDefaultSnap; // Unless reassigned, iAPid becomes the default access point.
       
   191 	CleanupStack::PopAndDestroy(gs);
       
   192 
       
   193 	__FLOG_STMT(_LIT(K, "SelectL() Prompt%d Def%d"));
       
   194 	__FLOG_2(K, promptForSnap, iAPid);
       
   195 
       
   196 	if (iAPid != 0)
       
   197     	// System is access point aware.
       
   198     	{
       
   199 		TConnStartType selectType(iConnStart->StartType());
       
   200 		TConnPref* selectPrefs = iConnStart->ConnPrefs();
       
   201 		
       
   202 		if (selectType == EConnStartImplicit ||
       
   203 			selectPrefs == 0 || selectPrefs->ExtensionId() == TConnPref::EConnPrefUnknown)
       
   204 			// Use default access point or dialogue if enabled.
       
   205 			{
       
   206 			__FLOG_STMT(_LIT(K, "SelectL() Default Type%d Prefs%d"));
       
   207 			__FLOG_2(K, selectType, selectPrefs);
       
   208 
       
   209 			// Use the default access point unless promptForSnap is ETrue in which case prompt
       
   210 			// for the access point.
       
   211 			if (promptForSnap)
       
   212 				{
       
   213 				User::LeaveIfError(iDlgServ.Connect());
       
   214 				iDlgServ.AccessPointConnection(iAPid,KAfInet,iStatus);
       
   215 				SetActive();
       
   216 				return; // Don't do selection until RunL() gets the dialogue results.
       
   217 				}
       
   218 
       
   219 			CCDIAPPrioritySelectionPolicyRecord* policy = LoadPolicyRecordLC(iAPid);
       
   220 			FillListL(*policy);
       
   221 			CleanupStack::PopAndDestroy(policy);
       
   222 			}
       
   223 		else if (selectPrefs && selectPrefs->ExtensionId() == TConnPref::EConnPrefSnap)
       
   224 			// Use access point id from preferences.
       
   225 			{
       
   226 			iAPid = static_cast<const TCommSnapPref*>(selectPrefs)->Snap();
       
   227 
       
   228 			__FLOG_STMT(_LIT(K, "SelectL() Type%d TConnPrefSnap AccessPoint%d "));
       
   229 			__FLOG_2(K, selectType, iAPid);
       
   230 
       
   231 			CCDIAPPrioritySelectionPolicyRecord* policy = LoadPolicyRecordLC(iAPid);
       
   232 			FillListL(*policy);
       
   233 			CleanupStack::PopAndDestroy(policy);
       
   234 			}
       
   235 		}
       
   236 	}
       
   237 
       
   238 void CIPConnectionSelector::FillListL(CCDIAPPrioritySelectionPolicyRecord& aPolicy)
       
   239 	{
       
   240 	__FLOG_0(_L("FillListL()"));
       
   241 
       
   242 	// Make sure we have the TCommIdList.
       
   243 	
       
   244 	// Create the new Prefs on the heap so that they are always available 
       
   245 	// even in the asynchronous promptForSnap Active Object callback
       
   246 	// The copy of the original Prefs are overwritten here
       
   247 	// The original Prefs are deleted in esock.  
       
   248 	// The new Prefs are deleted on destruction of CIPConnectionSelector
       
   249 	
       
   250 	iConnStart->SetConnPrefs(NULL);
       
   251 	iConnStart->SetConnPrefs(new (ELeave) TCommIdList);
       
   252 	
       
   253 	// Store Prefs for deletion on destruction of CIPConnectionSelector
       
   254 	ASSERT(iPrefs==0);
       
   255 	iPrefs = iConnStart->ConnPrefs();
       
   256 	
       
   257 	TCommIdList& list = *static_cast<TCommIdList*>(iPrefs);
       
   258 
       
   259 	CMDBRecordLink<CCDIAPRecord>* theIap = &aPolicy.iIap1;
       
   260 	CMDBField<TUint32>* theCount = &aPolicy.iIapCount;
       
   261 	TInt count = static_cast<TInt>(*theCount);
       
   262 	if (count > CCDIAPPrioritySelectionPolicyRecord::EMaxNrOfIaps)
       
   263 		{		
       
   264 		// The number of IAP's specified is more than allowed. Fix your table :-)
       
   265 		ASSERT(EFalse);
       
   266 		count = CCDIAPPrioritySelectionPolicyRecord::EMaxNrOfIaps;
       
   267 		}	
       
   268 	for (TInt i = 0; i < count; i++, theIap++)
       
   269 		{
       
   270 		TInt theIapNumber = static_cast<TInt>(*theIap);
       
   271 		ASSERT(theIapNumber>0);
       
   272 		__FLOG_STMT(_LIT(K, "aList[%d].Append(%d)"));
       
   273 		__FLOG_2(K, list.Count(), theIapNumber);
       
   274 		list.Append(theIapNumber);
       
   275 		}
       
   276 	}
       
   277 
       
   278 void CIPConnectionSelector::SelectLinkLayerL()
       
   279 	{
       
   280 	CConnectionFactoryContainer* connectionFactories = SockManGlobals::Get()->iConnectionFactories;
       
   281 	ASSERT(connectionFactories);
       
   282 	CConnectionProviderFactoryBase* factory = connectionFactories->FindFactory(KShimConnectionProviderFactoryId);
       
   283 	ASSERT(factory);
       
   284 	ISelectionNotify selectNotify( this, TSelectionNotify<CIPConnectionSelector>::SelectComplete, 
       
   285 	                                     TProgressNotify<CIPConnectionSelector>::ProgressNotification,
       
   286 	                                     TServiceChangeNotify<CIPConnectionSelector>::ServiceChangeNotification,
       
   287 	                                     TLayerUp<CIPConnectionSelector>::LayerUp,
       
   288 	                                     TSubConnectionEventTmpl<CIPConnectionSelector>::SubConnectionEvent, NULL);
       
   289 	selectNotify.RegisterDetach(TDetachNotify<CIPConnectionSelector>::Detach);
       
   290 
       
   291 	if (iNextLayerSelector!=NULL)
       
   292 		iNextLayerSelector->Cancel();
       
   293 	
       
   294 	// Select next (link) layer's provider.
       
   295 	ASSERT(iNextLayerSelector==NULL);
       
   296 	ASSERT(iConnStart!=NULL);
       
   297 
       
   298 	iNextLayerSelector = factory->SelectProvider(*iConnStart, selectNotify, iSelectMessage.IsNull()? NULL : &iSelectMessage);
       
   299     
       
   300     if (iNextLayerSelector == NULL)
       
   301 		{
       
   302 		User::Leave(KErrGeneral);
       
   303 		}
       
   304 
       
   305     }
       
   306 
       
   307 void CIPConnectionSelector::SelectComplete(CConnectionProviderBase* aConnProvider, TInt aError)
       
   308     {
       
   309     CIPNetworkConnectionProvider* connProvider = NULL;
       
   310     if (aError == KErrNone)
       
   311         {
       
   312         ASSERT(aConnProvider);
       
   313         XConnectionIPFactoryQuery query(aConnProvider);
       
   314 
       
   315         TRAP( aError, connProvider = static_cast<CIPNetworkConnectionProvider*>(iFactory.FindOrCreateProviderL(query)));
       
   316         if (aError == KErrNone && connProvider->NextLayer() == NULL)
       
   317             {
       
   318 
       
   319 #ifdef SYMBIAN_NETWORKING_UMTSR5	
       
   320 			// This piece of code is added to keep the information about the application secure ID in the 
       
   321 			// IP Connection provider. So that when the information is required form the subconnection provider
       
   322 			// we can do a fetch interface and get the App Secure ID to decide on to the Socket Blocking			
       
   323                 
       
   324               connProvider->SetAppSecurId(iAppSecureId.iId);            
       
   325   
       
   326           
       
   327 #endif // SYMBIAN_NETWORKING_UMTSR5	            
       
   328 
       
   329             // The factory returned a new instance - must set the lower layer.
       
   330             TRAP(aError,connProvider->JoinNextLayerL(aConnProvider));
       
   331             }
       
   332         }
       
   333     iNotify.SelectComplete(connProvider, aError);
       
   334     }
       
   335     
       
   336 void CIPConnectionSelector::ProgressNotification(TInt aStage, TInt aError)
       
   337     {
       
   338     //The original ISelectionNotifier (iNotify) might be interested in the
       
   339     //progress, but we aren't.
       
   340     iNotify.ProgressNotification(aStage, aError);
       
   341     }
       
   342 
       
   343 void CIPConnectionSelector::LayerUp(TInt aError)
       
   344 	{
       
   345     iNotify.LayerUp(aError);
       
   346 	}
       
   347 
       
   348 void CIPConnectionSelector::SubConnectionEvent(CSubConnectionProviderBase* aSubConnNextLayerProvider, const TSubConnectionEvent& aSubConnectionEvent)
       
   349 	{
       
   350 	iNotify.SubConnectionEvent(aSubConnNextLayerProvider, aSubConnectionEvent);
       
   351 	}
       
   352 	
       
   353 void CIPConnectionSelector::ServiceChangeNotification(TUint32 aId, const TDesC& aType)
       
   354 	{
       
   355     //The original ISelectionNotifier (iNotify) might be interested in the
       
   356     //notification, but we aren't.
       
   357     iNotify.ServiceChangeNotification(aId, aType);
       
   358 	}
       
   359 
       
   360 void CIPConnectionSelector::Detach()
       
   361 	{
       
   362 	iNextLayerSelector = NULL;
       
   363 	//Ensure the asynch destructor is ready to use.
       
   364 	//If its not, then we have probably been already deleted which should never happen.
       
   365 	//Detach is the only place we should be deleted from.
       
   366 	ASSERT(!iAsyncDestructor.IsActive());
       
   367 	__FLOG_1(_L8("CIPConnectionSelector %08x::Detach()"), this);
       
   368 	iAsyncDestructor.Call();
       
   369 	}
       
   370 
       
   371 CIPConnectionSelector::CIPConnectionSelector(ISelectionNotify& aNotify, CIPNetworkProviderFactory& aFactory)
       
   372 :	CActive(CActive::EPriorityUserInput),
       
   373 	iNotify(aNotify),
       
   374 	iFactory(aFactory),
       
   375 	iAsyncDestructor(CActive::EPriorityLow)
       
   376 	{
       
   377 	__FLOG_1(_L8("CIPConnectionSelector %08x::CIPConnectionSelector()"), this);
       
   378 	CActiveScheduler::Add(this);
       
   379 	iAsyncDestructor.Set(TCallBack(CIPConnectionSelector::DestroyMyself, this));
       
   380 	
       
   381   	}
       
   382 
       
   383 TInt CIPConnectionSelector::DestroyMyself(TAny* aSelf)
       
   384 	{
       
   385 	delete static_cast<CIPConnectionSelector*>(aSelf);
       
   386 	return KErrNone;
       
   387 	}
       
   388 
       
   389 CIPConnectionSelector::~CIPConnectionSelector()
       
   390     {
       
   391     __FLOG_CLOSE;
       
   392 	CActive::Cancel(); // There may be an outstanding selection request.
       
   393 
       
   394 	// This destructor is private and is meant to be called asynchronously via Detach() or Cancel() only.
       
   395 	// If is was called from anywhere else, the iNextLayerSelector would not be deleted!
       
   396 	// Please note that deleting iNextLayerSelector here needs revision on the link layer selectors,
       
   397 	// and specifically of the shim selector which - in such case - must not call Detach from its
       
   398 	// synchronous destructor!
       
   399 	ASSERT(iNextLayerSelector==NULL); // If still a valid pointer - probably not called via Detach() or Cancel().
       
   400 
       
   401 	delete iDbs;
       
   402 	
       
   403 	// Tidy up iConnStart and related objects
       
   404 	delete iPrefs;
       
   405 	delete iConnStart;
       
   406 	
       
   407 	iDlgServ.Close();
       
   408 
       
   409 	// Notify detach.
       
   410 	iNotify.Detach();
       
   411     }
       
   412 
       
   413 void CIPConnectionSelector::RunL()
       
   414 	// The dialogue has been presented.
       
   415 	// Normally completes with KErrNone or KErrCancel
       
   416 	// Could, however, complete with another system error e.g. KErrOutOfMemory
       
   417 	{
       
   418 	__FLOG_STMT(_LIT(K, "RunL() Err%d Snap%d"));
       
   419 	__FLOG_2(K, iStatus.Int(), iAPid);
       
   420 
       
   421     User::LeaveIfError(iStatus.Int());
       
   422     ASSERT(iAPid); //Should not be 0 now.
       
   423 	CCDIAPPrioritySelectionPolicyRecord* policy = LoadPolicyRecordLC(iAPid);
       
   424 	FillListL(*policy);
       
   425 	CleanupStack::PopAndDestroy(policy);
       
   426 	SelectLinkLayerL();
       
   427 	}
       
   428 
       
   429 TInt CIPConnectionSelector::RunError(TInt aError)
       
   430 	// Either the dialogue, the FillListL() or the SelectLinkLayerL() failed.
       
   431 	// In each case the selection request is completed with the apropriate result code.
       
   432 	{
       
   433 	iNotify.SelectComplete(0, aError);
       
   434  	
       
   435  	//If we have failed before the call to iNextLayerSelector->Select() or it wasn't successful
       
   436  	//we need to initiate the detach sequence by calling Detach().
       
   437  	 if (iNextLayerSelector==NULL)
       
   438 	 	{
       
   439 	 	Detach(); //It will result in self deletion.
       
   440 	 	}
       
   441 	return KErrNone;
       
   442 	}
       
   443 
       
   444 void CIPConnectionSelector::DoCancel()
       
   445 	{
       
   446 	iDlgServ.CancelAccessPointConnection();
       
   447 	}
       
   448 
       
   449 CCDGlobalSettingsRecord* CIPConnectionSelector::LoadGlobalSettingsRecordLC()
       
   450 	{
       
   451 	CCDGlobalSettingsRecord* gs = static_cast<CCDGlobalSettingsRecord*>(CCDConnectionPrefsRecord::RecordFactoryL(KCDTIdGlobalSettingsRecord));
       
   452 	CleanupStack::PushL(gs);
       
   453 	gs->SetRecordId(1);
       
   454 	gs->LoadL(*iDbs);
       
   455 	ASSERT(gs->iDefaultSnap.TypeId() == KCDTIdDefaultSnap); // Panics if built against incorrect CommsDat.
       
   456 	return gs;
       
   457 	}
       
   458 
       
   459 CCDIAPPrioritySelectionPolicyRecord* CIPConnectionSelector::LoadPolicyRecordLC(TInt aAccessPoint)
       
   460 	{
       
   461 	// Get access point from CommsDat.
       
   462 	CCDAccessPointRecord* apRecord = static_cast<CCDAccessPointRecord*>
       
   463 		(CCDConnectionPrefsRecord::RecordFactoryL(KCDTIdAccessPointRecord));
       
   464 	CleanupStack::PushL(apRecord);
       
   465 	apRecord->SetRecordId(aAccessPoint);
       
   466 	apRecord->LoadL(*iDbs);
       
   467 	TUint32 policyNumber = apRecord->iSelectionPolicy;
       
   468 	CleanupStack::PopAndDestroy(apRecord);
       
   469 
       
   470 	ASSERT((policyNumber & KCDMaskShowRecordType) == KCDTIdIapPrioritySelectionPolicyRecord);
       
   471 
       
   472 	CCDIAPPrioritySelectionPolicyRecord* policy = static_cast<CCDIAPPrioritySelectionPolicyRecord*>
       
   473 		(CCDConnectionPrefsRecord::RecordFactoryL(KCDTIdIapPrioritySelectionPolicyRecord));
       
   474 	CleanupStack::PushL(policy);
       
   475 	policy->SetElementId(policyNumber);
       
   476 	policy->LoadL(*iDbs);
       
   477 	return policy;
       
   478 	}
       
   479 
       
   480 MCommsFactoryQuery::TMatchResult XConnectionIPFactoryQuery::Match( TFactoryObjectInfo& aProviderInfo )
       
   481 	{
       
   482 	CConnectionProviderBase* prov = static_cast<CConnectionProviderBase*>(aProviderInfo.iInfo.iFactoryObject);
       
   483 	//if the next layer is the same as the one returned by the shim selection we have a match
       
   484 	return prov->NextLayer() == iConnectionProviderBase ? EMatch : EContinue;
       
   485 	}
       
   486