eapol/eapol_framework/eapol_symbian/am/type/mschapv2/symbian/plugin/src/EapMsChapV2DbUtils.cpp
changeset 0 c8830336c852
child 2 1c7bc153c08e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/eapol/eapol_framework/eapol_symbian/am/type/mschapv2/symbian/plugin/src/EapMsChapV2DbUtils.cpp	Thu Dec 17 08:47:43 2009 +0200
@@ -0,0 +1,642 @@
+/*
+* Copyright (c) 2001-2006 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  EAP and WLAN authentication protocols.
+*
+*/
+
+
+// This is enumeration of EAPOL source code.
+#if defined(USE_EAP_MINIMUM_RELEASE_TRACES)
+	#undef EAP_FILE_NUMBER_ENUM
+	#define EAP_FILE_NUMBER_ENUM 294 
+	#undef EAP_FILE_NUMBER_DATE 
+	#define EAP_FILE_NUMBER_DATE 1127594498 
+#endif //#if defined(USE_EAP_MINIMUM_RELEASE_TRACES)
+
+
+// INCLUDE FILES
+
+#include "EapMsChapV2DbUtils.h"
+#include "EapMsChapV2DbDefaults.h"
+#include "EapMsChapV2DbParameterNames.h"
+
+#include "eap_am_trace_symbian.h"
+
+const TUint KMaxSqlQueryLength = 512;
+const TInt KMicroSecsInAMinute = 60000000; // 60000000 micro seconds is 1 minute.
+
+// ================= MEMBER FUNCTIONS =======================
+
+void EapMsChapV2DbUtils::OpenDatabaseL(RDbNamedDatabase& aDatabase, RDbs& aSession, const TIndexType aIndexType,
+	const TInt aIndex, const eap_type_value_e aTunnelingType)
+{
+#ifdef USE_EAP_EXPANDED_TYPES
+
+	TUint aTunnelingVendorType = aTunnelingType.get_vendor_type();
+
+#else
+
+	TUint aTunnelingVendorType = static_cast<TUint>(aTunnelingType);
+
+#endif //#ifdef USE_EAP_EXPANDED_TYPES
+
+	EAP_TRACE_DEBUG_SYMBIAN((_L("EapMsChapV2DbUtils::OpenDatabaseL -Start- aIndexType=%d, aIndex=%d, aTunnelingVendorType=%d \n"),
+	aIndexType,aIndex,aTunnelingVendorType) );
+
+	// 1. Open/create a database	
+	
+	// Connect to the DBMS server.
+	User::LeaveIfError(aSession.Connect());		
+	CleanupClosePushL(aSession);	
+	// aSession and aDatabase are pushed to the cleanup stack even though they may be member
+	// variables of the calling class and would be closed in the destructor anyway. This ensures
+	// that if they are not member variables they will be closed. Closing the handle twice
+	// does no harm.	
+	
+#ifdef SYMBIAN_SECURE_DBMS
+	
+	// Create the secure shared database with the specified secure policy.
+	// Database will be created in the data caging path for DBMS (C:\private\100012a5).
+	
+	TInt err = aDatabase.Create(aSession, KDatabaseName, KSecureUIDFormat);
+	
+	EAP_TRACE_DEBUG_SYMBIAN((_L("EapMsChapV2DbUtils::OpenDatabaseL - Created Secure DB for eapmsmhapv2.dat. err=%d\n"), err));
+
+	
+	if(err == KErrNone)
+	{
+		aDatabase.Close();
+		
+	} else if (err != KErrAlreadyExists) 
+	{
+		User::LeaveIfError(err);
+	}
+	
+	User::LeaveIfError(aDatabase.Open(aSession, KDatabaseName, KSecureUIDFormat));
+	CleanupClosePushL(aDatabase);		
+		
+#else
+	// For non-secured database. The database will be created in the old location (c:\system\data).
+	
+	RFs fsSession;		
+	User::LeaveIfError(fsSession.Connect());
+	CleanupClosePushL(fsSession);	
+	TInt err = aDatabase.Create(fsSession, KDatabaseName);
+	
+	EAP_TRACE_DEBUG_SYMBIAN((_L("EapMsChapV2DbUtils::OpenDatabaseL - Created Non-Secure DB for eapmsmhapv2.dat. err=%d\n"), err));
+
+	
+	if(err == KErrNone)
+	{
+		aDatabase.Close();
+		
+	} else if (err != KErrAlreadyExists) 
+	{
+		User::LeaveIfError(err);
+	}
+	CleanupStack::PopAndDestroy(); // close fsSession
+	
+	User::LeaveIfError(aDatabase.Open(aSession, KDatabaseName));
+	CleanupClosePushL(aDatabase);		
+	    
+#endif // #ifdef SYMBIAN_SECURE_DBMS
+
+// 2. Create the MSCHAPv2 table to database (ignore error if database exists)
+// Table columns:
+//// NAME ///////////////////////////////////////////////// TYPE ////////////// Constant /////////
+//| ServiceType                                         | UNSIGNED INTEGER  | KServiceType      |//
+//| ServiceIndex                                        | UNSIGNED INTEGER  | KServiceIndex     |//
+//| TunnelingType                                       | UNSIGNED INTEGER  | KTunnelingType    |//
+//| EAP_MSCHAPV2_password_prompt                        | UNSIGNED INTEGER  | cf_str_EAP_MSCHAPV2_password_prompt_literal   |//
+//| EAP_MSCHAPV2_username                               | VARCHAR(255)      | cf_str_EAP_MSCHAPV2_username_literal         |//
+//| EAP_MSCHAPV2_password                               | VARCHAR(255)      | cf_str_EAP_MSCHAPV2_password_literal         |//
+//| EAP_MSCHAPv2_max_session_validity_time				| BIGINT		   	| cf_str_EAP_MSCHAPv2_max_session_validity_time_literal   |//
+//| EAP_MSCHAPv2_last_full_authentication_time			| BIGINT		   	| KMSCHAPv2LastFullAuthTime	|//
+//////////////////////////////////////////////////////////////////////////////////////////////////
+
+	HBufC* buf = HBufC::NewLC(KMaxSqlQueryLength);
+	TPtr sqlStatement = buf->Des();
+
+	_LIT(KSQLCreateTable1, "CREATE TABLE %S (%S UNSIGNED INTEGER, \
+											 %S UNSIGNED INTEGER, \
+											 %S UNSIGNED INTEGER, \
+											 %S UNSIGNED INTEGER, \
+											 %S VARCHAR(255), \
+											 %S VARCHAR(255), \
+											 %S BIGINT, \
+											 %S BIGINT)");
+
+	sqlStatement.Format(KSQLCreateTable1,
+						&KMsChapV2TableName,
+						&KServiceType,
+						&KServiceIndex,
+						&KTunnelingType,
+						&cf_str_EAP_MSCHAPV2_password_prompt_literal,
+						&cf_str_EAP_MSCHAPV2_username_literal,
+						&cf_str_EAP_MSCHAPV2_password_literal,
+						&cf_str_EAP_MSCHAPv2_max_session_validity_time_literal, 
+						&KMSCHAPv2LastFullAuthTime);
+
+	err = aDatabase.Execute(sqlStatement);
+	if (err != KErrNone && err != KErrAlreadyExists)
+	{
+		User::Leave(err);
+	}
+
+	// 4. Check if database table contains a row for this service type and id  
+	
+	_LIT(KSQLQueryRow, "SELECT %S FROM %S WHERE %S=%d AND %S=%d AND %S=%d");
+	sqlStatement.Format(KSQLQueryRow,
+						&cf_str_EAP_MSCHAPV2_username_literal,
+						&KMsChapV2TableName,
+						&KServiceType,
+						aIndexType,
+						&KServiceIndex,
+						aIndex,
+						&KTunnelingType, 
+						aTunnelingVendorType);
+							
+	RDbView view;
+	User::LeaveIfError(view.Prepare(aDatabase, TDbQuery(sqlStatement), TDbWindow::EUnlimited));
+	// View must be closed when no longer needed
+	CleanupClosePushL(view);
+	User::LeaveIfError(view.EvaluateAll());
+	
+	// 5. If row is not found then add it
+	
+	TInt rows = view.CountL();
+	CleanupStack::PopAndDestroy(); // view
+	if (rows == 0)
+	{
+		_LIT(KSQLInsert, "SELECT * FROM %S");
+		sqlStatement.Format(KSQLInsert, &KMsChapV2TableName);		
+										
+		view.Prepare(aDatabase, TDbQuery(sqlStatement), TDbWindow::EUnlimited, RDbView::EInsertOnly);
+		CleanupClosePushL(view);
+		
+		// Get column set so we get the correct column numbers
+		CDbColSet* colSet = view.ColSetL();		
+		CleanupStack::PushL(colSet);
+		
+		view.InsertL();
+		view.SetColL(colSet->ColNo(KServiceType), static_cast<TInt> (aIndexType));
+		view.SetColL(colSet->ColNo(KServiceIndex), aIndex);
+		view.SetColL(colSet->ColNo(KTunnelingType), aTunnelingVendorType);
+		
+		view.SetColL(colSet->ColNo(cf_str_EAP_MSCHAPV2_password_prompt_literal), default_EAP_MSCHAPV2_password_prompt);
+		
+		view.SetColL(colSet->ColNo(cf_str_EAP_MSCHAPV2_username_literal), default_EAP_MSCHAPV2_username);
+		
+		view.SetColL(colSet->ColNo(cf_str_EAP_MSCHAPV2_password_literal), default_EAP_MSCHAPV2_password);
+		
+		view.SetColL(colSet->ColNo(cf_str_EAP_MSCHAPv2_max_session_validity_time_literal), default_MaxSessionTime);
+		
+		view.SetColL(colSet->ColNo(KMSCHAPv2LastFullAuthTime), default_FullAuthTime);		
+		
+		view.PutL();
+				
+		CleanupStack::PopAndDestroy( colSet ); // Delete colSet.
+		
+		CleanupStack::PopAndDestroy( &view ); // Close view.		
+	} 
+	
+	CleanupStack::PopAndDestroy( buf ); // Delete buf	
+	CleanupStack::Pop( &aDatabase );	
+	CleanupStack::Pop( &aSession );	
+		
+	aDatabase.Compact();
+}
+
+
+void EapMsChapV2DbUtils::SetIndexL(
+	RDbNamedDatabase& aDatabase, 		
+	const TIndexType aIndexType,
+	const TInt aIndex,
+	const eap_type_value_e aTunnelingType,
+	const TIndexType aNewIndexType,
+	const TInt aNewIndex,
+	const eap_type_value_e aNewTunnelingType)
+{
+#ifdef USE_EAP_EXPANDED_TYPES
+
+	TUint aTunnelingVendorType = aTunnelingType.get_vendor_type();
+	TUint aNewTunnelingVendorType = aNewTunnelingType.get_vendor_type();
+
+#else
+
+	TUint aTunnelingVendorType = static_cast<TUint>(aTunnelingType);
+	TUint aNewTunnelingVendorType = static_cast<TUint>(aNewTunnelingType);
+
+#endif //#ifdef USE_EAP_EXPANDED_TYPES
+
+	HBufC* buf = HBufC::NewLC(KMaxSqlQueryLength);
+	TPtr sqlStatement = buf->Des();
+
+	_LIT(KSQL, "SELECT * FROM %S WHERE %S=%d AND %S=%d AND %S=%d");
+
+	sqlStatement.Format(KSQL, &KMsChapV2TableName, 
+		&KServiceType, aIndexType, &KServiceIndex, aIndex, &KTunnelingType, aTunnelingVendorType);
+	
+	RDbView view;
+	
+	User::LeaveIfError(view.Prepare(aDatabase, TDbQuery(sqlStatement), TDbWindow::EUnlimited));
+	
+	// View must be closed when no longer needed
+	CleanupClosePushL(view);
+	
+	User::LeaveIfError(view.EvaluateAll());
+			
+	TInt rows = view.CountL();
+	
+	if (rows == 0)
+	{
+		User::Leave(KErrNotFound);
+	}
+	
+	// Get the first (and only) row
+	view.FirstL();
+	view.GetL();				
+	
+	// Get column set so we get the correct column numbers
+	CDbColSet* colSet = view.ColSetL();
+	
+	CleanupStack::PushL(colSet);
+	
+	view.UpdateL();
+	
+    view.SetColL(colSet->ColNo(KServiceType), static_cast<TUint>(aNewIndexType));
+    
+    view.SetColL(colSet->ColNo(KServiceIndex), aNewIndex);
+    
+    view.SetColL(colSet->ColNo(KTunnelingType), aNewTunnelingVendorType);
+
+    view.PutL();
+    	
+	CleanupStack::PopAndDestroy(3); // view, colset, buf
+}
+
+void EapMsChapV2DbUtils::SetConfigurationL(
+	RDbNamedDatabase& aDatabase,
+	const EAPSettings& aSettings, 
+	const TIndexType aIndexType,
+	const TInt aIndex,
+	const eap_type_value_e aTunnelingType)
+{
+#ifdef USE_EAP_EXPANDED_TYPES
+
+	TUint aTunnelingVendorType = aTunnelingType.get_vendor_type();
+
+#else
+
+	TUint aTunnelingVendorType = static_cast<TUint>(aTunnelingType);
+
+#endif //#ifdef USE_EAP_EXPANDED_TYPES
+
+	// Check if the settings are for the correct type
+	if (aSettings.iEAPType != EAPSettings::EEapMschapv2 &&
+		aSettings.iEAPType != EAPSettings::EPlainMschapv2)
+	{
+		User::Leave(KErrNotSupported);
+	}
+	
+	HBufC* buf = HBufC::NewLC(KMaxSqlQueryLength);
+	TPtr sqlStatement = buf->Des();	
+
+	RDbView view;
+
+	_LIT(KSQLQuery, "SELECT * FROM %S WHERE %S=%d AND %S=%d AND %S=%d");
+	sqlStatement.Format(KSQLQuery, &KMsChapV2TableName, 
+		&KServiceType, aIndexType, &KServiceIndex, aIndex, &KTunnelingType, aTunnelingVendorType);
+	
+	// Evaluate view
+	User::LeaveIfError(view.Prepare(aDatabase, TDbQuery(sqlStatement)));
+	
+	CleanupClosePushL(view);
+	
+	User::LeaveIfError(view.EvaluateAll());	
+
+	view.FirstL();
+	
+	view.UpdateL();
+	
+	// Get column set so we get the correct column numbers
+	CDbColSet* colSet = view.ColSetL();
+	CleanupStack::PushL(colSet);
+
+	// Username
+	if (aSettings.iUsernamePresent)
+	{
+		// Validate length.
+		if(aSettings.iUsername.Length() > KMaxUsernameLengthInDB)
+		{
+			// Username too long. Can not be stored in DB.
+			
+			EAP_TRACE_DEBUG_SYMBIAN((_L("EapMsChapV2DbUtils::SetConfigurationL: Too long Username. Length=%d \n"),
+			aSettings.iUsername.Length()));
+			
+			User::Leave(KErrArgument);
+		}
+		
+		// Length is ok. Set the value in DB.
+		view.SetColL(colSet->ColNo(cf_str_EAP_MSCHAPV2_username_literal), aSettings.iUsername);		
+	}
+		
+	// Password
+	if (aSettings.iPasswordPresent)
+	{
+		// Validate length.
+		if(aSettings.iPassword.Length() > KMaxPasswordLengthInDB)
+		{
+			// Password too long. Can not be stored in DB.
+			
+			EAP_TRACE_DEBUG_SYMBIAN((_L("EapMsChapV2DbUtils::SetConfigurationL: Too long Password. Length=%d \n"),
+			aSettings.iPassword.Length()));
+			
+			User::Leave(KErrArgument);
+		}
+					
+		// Length is ok. Set the value in DB.	
+		view.SetColL(colSet->ColNo(cf_str_EAP_MSCHAPV2_password_literal), aSettings.iPassword);
+		
+		// If password was supplied set password prompting off
+		view.SetColL(colSet->ColNo(cf_str_EAP_MSCHAPV2_password_prompt_literal), EMSCHAPV2PasswordPromptOff);		
+	}
+			
+	// Session validity time
+	if (aSettings.iSessionValidityTimePresent)
+	{
+		// User or device management wants to store the session validity time.
+		// Convert the time to micro seconds and save.
+		
+		TInt64 validityInMicro = (aSettings.iSessionValidityTime) *  KMicroSecsInAMinute;
+		
+		view.SetColL(colSet->ColNo(cf_str_EAP_MSCHAPv2_max_session_validity_time_literal), validityInMicro);
+		
+		// If max session validity time is supplied and non-zero, set password prompting ON.
+		// It doesn't matter even if the password is supplied. If max session validity is supplied,
+		// it means user needs to provide a password hence prompt should appear.
+		
+		if( validityInMicro != 0)
+		{
+			view.SetColL(colSet->ColNo(cf_str_EAP_MSCHAPV2_password_prompt_literal), EMSCHAPV2PasswordPromptOn);
+		}		
+	}
+	
+	// Last full authentication time should be made zero when EAP configurations are modified.
+	// This makes sure that the next authentication with this EAP would be full authentication
+	// instead of reauthentication even if the session is still valid.
+	
+	view.SetColL(colSet->ColNo(KMSCHAPv2LastFullAuthTime), default_FullAuthTime);
+
+	EAP_TRACE_DEBUG_SYMBIAN((_L("Session Validity: EAP-Type=%d, Resetting Full Auth Time since settings are modified\n"),
+								aSettings.iEAPType ));
+	
+	view.PutL();
+	CleanupStack::PopAndDestroy(3); // view, colset, buf
+
+}
+
+void EapMsChapV2DbUtils::GetConfigurationL(
+	RDbNamedDatabase& aDatabase,
+	EAPSettings& aSettings, 
+	const TIndexType aIndexType,
+	const TInt aIndex,
+	const eap_type_value_e aTunnelingType)
+{
+#ifdef USE_EAP_EXPANDED_TYPES
+
+	TUint aTunnelingVendorType = aTunnelingType.get_vendor_type();
+
+#else
+
+	TUint aTunnelingVendorType = static_cast<TUint>(aTunnelingType);
+
+#endif //#ifdef USE_EAP_EXPANDED_TYPES
+
+	HBufC* buf = HBufC::NewLC(KMaxSqlQueryLength);
+	TPtr sqlStatement = buf->Des();	
+
+	RDbView view;
+
+	// Form the query
+	_LIT(KSQLQuery, "SELECT * FROM %S WHERE %S=%d AND %S=%d AND %S=%d");
+	sqlStatement.Format(KSQLQuery, &KMsChapV2TableName, 
+		&KServiceType, aIndexType, &KServiceIndex, aIndex, &KTunnelingType, aTunnelingVendorType);
+	
+	// Evaluate view
+	User::LeaveIfError(view.Prepare(aDatabase, TDbQuery(sqlStatement)));
+	
+	CleanupClosePushL(view);
+	
+	User::LeaveIfError(view.EvaluateAll());
+
+	// Get the first (and only) row
+	view.FirstL();
+	view.GetL();
+	
+	// Get column set so we get the correct column numbers
+	CDbColSet* colSet = view.ColSetL();
+	CleanupStack::PushL(colSet);
+
+	aSettings.iEAPType = EAPSettings::EEapMschapv2; 
+	
+	// Username
+	TPtrC username = view.ColDes(colSet->ColNo(cf_str_EAP_MSCHAPV2_username_literal));
+	aSettings.iUsername.Copy(username);
+	aSettings.iUsernamePresent = ETrue;
+	
+	// Password
+	TPtrC password = view.ColDes(colSet->ColNo(cf_str_EAP_MSCHAPV2_password_literal));
+	aSettings.iPassword.Copy(password);
+	aSettings.iPasswordPresent = ETrue;
+
+	// Session validity time	
+	TInt64 maxSessionTimeMicro = view.ColInt64(colSet->ColNo(cf_str_EAP_MSCHAPv2_max_session_validity_time_literal));
+	
+	// Convert the time to minutes.	
+	TInt64 maxSessionTimeMin = maxSessionTimeMicro / KMicroSecsInAMinute;
+	
+	aSettings.iSessionValidityTime = static_cast<TUint>(maxSessionTimeMin);
+	aSettings.iSessionValidityTimePresent = ETrue;
+		
+	CleanupStack::PopAndDestroy(3); // view, colset, buf
+}
+
+void EapMsChapV2DbUtils::CopySettingsL(
+	RDbNamedDatabase& aDatabase, 		
+	const TIndexType aSrcIndexType,
+	const TInt aSrcIndex,
+	const eap_type_value_e aSrcTunnelingType,
+	const TIndexType aDestIndexType,
+	const TInt aDestIndex,
+	const eap_type_value_e aDestTunnelingType)
+{
+#ifdef USE_EAP_EXPANDED_TYPES
+
+	TUint aSrcTunnelingVendorType = aSrcTunnelingType.get_vendor_type();
+	TUint aDestTunnelingVendorType = aDestTunnelingType.get_vendor_type();
+
+#else
+
+	TUint aSrcTunnelingVendorType = static_cast<TUint>(aSrcTunnelingType);
+	TUint aDestTunnelingVendorType = static_cast<TUint>(aDestTunnelingType);
+
+#endif //#ifdef USE_EAP_EXPANDED_TYPES
+
+	HBufC* buf = HBufC::NewLC(KMaxSqlQueryLength);
+	TPtr sqlStatement = buf->Des();
+
+	_LIT(KSQL, "SELECT * FROM %S WHERE %S=%d AND %S=%d AND %S=%d");
+
+	sqlStatement.Format(KSQL, &KMsChapV2TableName, 
+		&KServiceType, aSrcIndexType, &KServiceIndex, aSrcIndex, &KTunnelingType, aSrcTunnelingVendorType);
+	
+	RDbView view;
+	
+	User::LeaveIfError(view.Prepare(aDatabase, TDbQuery(sqlStatement), TDbWindow::EUnlimited));
+	
+	// View must be closed when no longer needed
+	CleanupClosePushL(view);
+	
+	User::LeaveIfError(view.EvaluateAll());
+			
+	TInt rows = view.CountL();
+	
+	if (rows == 0)
+	{
+		User::Leave(KErrNotFound);
+	}
+	
+	// Get the first (and only) row
+	view.FirstL();
+	
+	view.GetL();
+		
+	view.InsertCopyL();
+	
+	// Get column set so we get the correct column numbers
+	CDbColSet* colSet = view.ColSetL();
+	
+	CleanupStack::PushL(colSet);
+		
+	view.SetColL(colSet->ColNo(KServiceType), static_cast<TUint>(aDestIndexType));
+    
+    view.SetColL(colSet->ColNo(KServiceIndex), aDestIndex);
+    
+    view.SetColL(colSet->ColNo(KTunnelingType), aDestTunnelingVendorType);
+
+    view.PutL();
+    	
+	CleanupStack::PopAndDestroy(3); // view, colset, buf
+}
+
+void EapMsChapV2DbUtils::DeleteConfigurationL(	
+	const TIndexType aIndexType,
+	const TInt aIndex,
+	const eap_type_value_e aTunnelingType)
+{
+#ifdef USE_EAP_EXPANDED_TYPES
+
+	TUint aTunnelingVendorType = aTunnelingType.get_vendor_type();
+
+#else
+
+	TUint aTunnelingVendorType = static_cast<TUint>(aTunnelingType);
+
+#endif //#ifdef USE_EAP_EXPANDED_TYPES
+
+	RDbs session;
+	RDbNamedDatabase database;
+	// Connect to the DBMS server.
+	User::LeaveIfError(session.Connect());
+	CleanupClosePushL(session);	
+		
+#ifdef SYMBIAN_SECURE_DBMS
+	
+	// Create the secure shared database with the specified secure policy.
+	// Database will be created in the data caging path for DBMS (C:\private\100012a5).
+	
+	TInt err = database.Create(session, KDatabaseName, KSecureUIDFormat);
+	
+	if(err == KErrNone)
+	{
+		// Database was created so it was empty. No need for further actions.
+		database.Destroy();
+		CleanupStack::PopAndDestroy();
+		return;
+		
+	} 
+	else if (err != KErrAlreadyExists) 
+	{
+		User::LeaveIfError(err);
+	}
+	
+	// Database existed, open it.
+	User::LeaveIfError(database.Open(session, KDatabaseName, KSecureUIDFormat));
+	CleanupClosePushL(database);
+		
+#else
+	// For non-secured database. The database will be created in the old location (c:\system\data).
+	
+	RFs fsSession;		
+	User::LeaveIfError(fsSession.Connect());
+	CleanupClosePushL(fsSession);	
+	TInt err = database.Create(fsSession, KDatabaseName);
+
+	if(err == KErrNone)
+	{
+		// Database was created so it was empty. No need for further actions.
+		database.Destroy();
+		CleanupStack::PopAndDestroy(2); // fsSession, database session
+		return;
+		
+	} 
+	else if (err != KErrAlreadyExists) 
+	{
+		User::LeaveIfError(err);
+	}
+	
+	CleanupStack::PopAndDestroy(); // close fsSession
+	
+	User::LeaveIfError(database.Open(session, KDatabaseName));
+	CleanupClosePushL(database);		
+	    
+#endif // #ifdef SYMBIAN_SECURE_DBMS
+
+	HBufC* buf = HBufC::NewLC(KMaxSqlQueryLength);
+	TPtr sqlStatement = buf->Des();
+
+	// Main settings table
+	_LIT(KSQL, "SELECT * FROM %S WHERE %S=%d AND %S=%d AND %S=%d");
+	sqlStatement.Format(KSQL, &KMsChapV2TableName, 
+		&KServiceType, aIndexType, &KServiceIndex, aIndex, &KTunnelingType, aTunnelingVendorType);
+	// Evaluate view
+	RDbView view;
+	User::LeaveIfError(view.Prepare(database,TDbQuery(sqlStatement), TDbWindow::EUnlimited));
+	CleanupClosePushL(view);
+	User::LeaveIfError(view.EvaluateAll());
+
+	// Delete rows
+	if (view.FirstL())
+	{		
+		do {
+			view.DeleteL();
+		} while (view.NextL() != EFalse);
+	}
+
+	// Close database
+	CleanupStack::PopAndDestroy(4); // view, buf, database, session
+}
+
+// End of File