Categories: S60 | Symbian C++ | Connectivity | WLAN

This page was last modified 11:01, 2 February 2008.

From Forum Nokia Wiki

Purpose

WLAN settings UI API provides necessary functionality for launching a WLAN settings view.

It also gives the Comms Db column names to set the security settings of WLAN access point.

Use cases

To create a WLAN access point.

Example code

For example lets see how to create a WLAN access point with WEP security settings:

Headers and Libraries required

#include <commdb.h>        // link against commdb.lib
#include <apselect.h>      // link against apengine.lib
#include <aplistitem.h>
#include <apdatahandler.h>
#include <apaccesspointitem.h>
#include <wlancdbcols.h>   // for security settings

CApAccessPointItem *wlan = CApAccessPointItem::NewLC();
wlan->SetNamesL(_L("NewAP"));
wlan->SetBearerTypeL(EApBearerTypeWLAN);
wlan->WriteTextL(EApWlanNetworkName, _L("WlanAP"));
wlan->WriteUint(EApWlanSecurityMode,2); // security mode 2 refers to WEP. 
wlan->WriteUint(EApWlanNetworkMode,1); 
// network mode refers to whether its AdHoc or Infrastructure mode.
 
// Store it into the CommsDb
CCommsDatabase *commDb = CCommsDatabase::NewL();
CleanupStack::PushL(db);
CApDataHandler *handler = CApDataHandler::NewLC(*commDb);
TInt err = commDb ->BeginTransaction();
TUint32 newApId = handler->CreateFromDataL(*wlan);
CleanupStack::PopAndDestroy(3); // handler, commDb, wlan
 
//Setting the security settings:
 
enum TWEPKeyFormat
    {
    EAscii,                 // Ascii format
    EHexadecimal            // Hex format
    };
    
    enum TWEPKeyInUse
    {
    EKeyNumber1,            // Key number 1
    EKeyNumber2,            // Key number 2
    EKeyNumber3,            // Key number 3
    EKeyNumber4             // Key number 4
    };
 
enum TWEPAuthentication
    {
    EAuthOpen,              // Open authentication
    EAuthShared             // Shared authentication
    };
 
handler->AccessPointDataL(newApId,*wlanNew1); 
//wlanNew1 is an object of CApAccessPointItem 
wlanNew1->ReadUint( EApIapServiceId, newalanid );
// we need to get the IAP id to manupulate the security settings.
					
iKeyData.Copy(_L("626ABB616A"));
//Should be the same value to which the WLAN router is configured
 
iKeyFormat=EAscii;           // TWEPKeyFormat
iAuthentication=EAuthShared; // TWEPAuthentication
iKeyInUse=EKeyNumber3;       // TWEPKeyInUse
 
wLanServiceTable = db->OpenViewMatchingUintLC( TPtrC( WLAN_SERVICE ), 
TPtrC( WLAN_SERVICE_ID ), newalanid );  // Give the corresponding IAP ID
        
errorCode = wLanServiceTable->GotoFirstRecord();
 
TBool ival =ETrue;
	if ( errorCode == KErrNone )
        {
        wLanServiceTable->UpdateRecord();
      			
        }
   	else
        {
        TUint32 dummyUid( KUidNone );
        User::LeaveIfError( wLanServiceTable->InsertRecord( dummyUid ) );
        // Save link to LAN service
	wLanServiceTable->WriteUintL( TPtrC( WLAN_SERVICE_ID ), newApId);
        }
 
// Save index of key in use (1,2,3 or 4)
TRAP(error,wLanServiceTable->WriteUintL( TPtrC( WLAN_WEP_INDEX ),
( TUint32& ) iKeyInUse ));
					 
// Save the authentication type (shared or Open)
TRAP(error,wLanServiceTable->WriteUintL( TPtrC( WLAN_AUTHENTICATION_MODE ),
( TUint32& )iAuthentication ));
					 
// save the correct keydata corresponding to the router configuration
TRAP(error,wLanServiceTable->WriteTextL( TPtrC( WLAN_WEP_KEY3 ), iKeyData ));
					 
// Save the format of the key (Hexadecimal or Ascii)
wLanServiceTable->WriteUintL( TPtrC( LAN_WEP_KEY3_FORMAT ),
( TUint32& ) iKeyFormat );
 
wLanServiceTable->PutRecordChanges();
 
err = db->CommitTransaction();    
// End a transaction. Call after `InsertRecord()` or `UpdateRecord()`.

NOTE: The Key In Use, the Key format and the Key data should be the same as the WLAN router or else the connection will not be established.

Example project

Example application