How to prevent web browsing with WLAN programatically

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Code Example

Source file: Media:Wlanonoff.zip

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Article

Created: mahbub_s60 (02 Jun 2010)

Last edited: hamishwillee (26 Jul 2012)

Introduction

With Symbian devices, we can connect to WLAN and browse internet without restriction. But if device management want to configure devices in such a way so that WLAN, BT, IRDA, GPRS etc can't be used in company devices for security reason. How we can stop WLAN from being used? In this article, we are examining how we can prevent WLAN to browse web programmatically.

We can monitor the publish and subscribe category (KPSUidWlan) to get notification about the status of the connection. When we get the value of key either EPSWlanIndicatorActive or EPSWlanIndicatorActiveSecure then we can disconnect the connection as shown in the following code.

void CWLANPubSub::RunL()
	{	
 
	 iWlanEngine->RefreshL();		
 
	TInt Val = -1;	
 
	iProperty.Get(Val);			
	if(iWlanStatusExpected == EFalse)
	    {	
        TInt Count = iWlanEngine->Count();                	    
	    if((Val == EPSWlanIndicatorActive || Val == EPSWlanIndicatorActiveSecure) && Count > 0)
	        {
            TBuf<100> bearerName(0);
	        for(TInt i = 0; i <Count; i++ )
	            {
                    bearerName.SetLength(0);
                    bearerName.FillZ();
                    TRAPD(tt, iWlanEngine->GetBearerL(i, bearerName));	            	            
 
 
                    if(bearerName.Compare(_L("WLAN")) == 0) // Check for other??
                        {
                        TRAPD(trert, iWlanEngine->StopConnectionL(i));                             
                        break;
                        }                    
	            }
	        }
	    }
		RequestChange();		 
	}

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Code example

This code was tested with E90 (S60 3.1 platform) We need capability NetworkControl Example code be found from following link: File:Wlanonoff.zip