/*
* Copyright (c) 2001-2010 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: Implementation of class CWEPSecuritySettingsImpl.
*
*/
/*
* %version: tr1cfwln#27 %
*/
// INCLUDE FILES
#include "WEPSecuritySettingsImpl.h"
#include "WEPSecuritySettingsUiPanic.h"
#include <WEPSecuritySettingsUI.h>
#include <commdb.h>
#include <featmgr.h>
#include <WlanCdbCols.h>
#include <commsdattypesv1_1.h>
#include <cmmanagertablefields.h>
#include <wlancontainer.h>
// CONSTANT DECLARATIONS
// Index of first key
LOCAL_D const TInt KFirstKey = 0;
// Index of second key
LOCAL_D const TInt KSecondKey = 1;
// Index of third key
LOCAL_D const TInt KThirdKey = 2;
// Index of fourth key
LOCAL_D const TInt KFourthKey = 3;
// Ratio of ascii and hex key sizes
LOCAL_D const TInt KAsciiHexRatio = 2;
// ================= MEMBER FUNCTIONS =======================
// ---------------------------------------------------------
// CWEPSecuritySettingsImpl::NewL
// ---------------------------------------------------------
//
CWEPSecuritySettingsImpl* CWEPSecuritySettingsImpl::NewL()
{
CWEPSecuritySettingsImpl* settings =
new ( ELeave ) CWEPSecuritySettingsImpl();
CleanupStack::PushL( settings );
settings->ConstructL();
CleanupStack::Pop( settings );
return settings;
}
// ---------------------------------------------------------
// CWEPSecuritySettingsImpl::CWEPSecuritySettingsImpl
// ---------------------------------------------------------
//
CWEPSecuritySettingsImpl::CWEPSecuritySettingsImpl()
: iIsWEP256Enabled( ETrue )
{
iKeyInUse = CWEPSecuritySettings::EKeyNumber1;
iAuthentication = CWEPSecuritySettings::EAuthOpen;
for ( TUint i = 0; i < KMaxNumberofKeys; i++)
{
iKeyLength[i] = CWEPSecuritySettings::E40Bits;
iKeyFormat[i] = CWEPSecuritySettings::EAscii;
iKeyData[i].Zero();
}
}
// ---------------------------------------------------------
// CWEPSecuritySettingsImpl::ConstructL
// ---------------------------------------------------------
//
void CWEPSecuritySettingsImpl::ConstructL()
{
// WEP256 is deprecated.
iIsWEP256Enabled = EFalse;
}
// ---------------------------------------------------------
// CWEPSecuritySettingsImpl::~CWEPSecuritySettingsImpl
// ---------------------------------------------------------
//
CWEPSecuritySettingsImpl::~CWEPSecuritySettingsImpl()
{
}
// ---------------------------------------------------------
// CWEPSecuritySettingsImpl::LoadL
// ---------------------------------------------------------
//
void CWEPSecuritySettingsImpl::LoadL( TUint32 aIapId,
CCommsDatabase& aCommsDb )
{
if ( aIapId == KUidNone )
{
return;
}
CCommsDbTableView* wLanServiceTable;
wLanServiceTable = aCommsDb.OpenViewMatchingUintLC(
TPtrC( WLAN_SERVICE ), TPtrC( WLAN_SERVICE_ID ), aIapId );
TInt errorCode = wLanServiceTable->GotoFirstRecord();
if ( errorCode == KErrNone )
{
// Get index of key in use
TRAPD( err, wLanServiceTable->ReadUintL( TPtrC( WLAN_WEP_INDEX ),
( TUint32& ) iKeyInUse ) );
// Get index of key in use
TRAP( err, wLanServiceTable->ReadUintL(
TPtrC( NU_WLAN_AUTHENTICATION_MODE ),
( TUint32& ) iAuthentication ) );
// Get first WEP key
wLanServiceTable->ReadTextL( TPtrC( NU_WLAN_WEP_KEY1 ),
iKeyData[KFirstKey] );
SetLenKeyDataFromText( KFirstKey );
// Get second WEP key
wLanServiceTable->ReadTextL( TPtrC( NU_WLAN_WEP_KEY2 ),
iKeyData[KSecondKey] );
SetLenKeyDataFromText( KSecondKey );
// Get third WEP key
wLanServiceTable->ReadTextL( TPtrC( NU_WLAN_WEP_KEY3 ),
iKeyData[KThirdKey] );
SetLenKeyDataFromText( KThirdKey );
// Get fourth WEP key
wLanServiceTable->ReadTextL( TPtrC( NU_WLAN_WEP_KEY4 ),
iKeyData[KFourthKey] );
SetLenKeyDataFromText( KFourthKey );
// Get the format of the keys
TRAP( err, wLanServiceTable->ReadUintL( TPtrC( WLAN_WEP_KEY1_FORMAT ),
( TUint32& ) iKeyFormat[KFirstKey] ) );
TRAP( err, wLanServiceTable->ReadUintL( TPtrC( WLAN_WEP_KEY2_FORMAT ),
( TUint32& ) iKeyFormat[KSecondKey] ) );
TRAP( err, wLanServiceTable->ReadUintL( TPtrC( WLAN_WEP_KEY3_FORMAT ),
( TUint32& ) iKeyFormat[KThirdKey] ) );
TRAP( err, wLanServiceTable->ReadUintL( TPtrC( WLAN_WEP_KEY4_FORMAT ),
( TUint32& ) iKeyFormat[KFourthKey] ) );
}
else
{
// silently ignore KErrNotFound. It is caused by incorrect DB,
// we are 'repairing it' this way.
if ( errorCode != KErrNotFound )
{
User::Leave( errorCode );
}
}
CleanupStack::PopAndDestroy( wLanServiceTable ); // wLanServiceTable
}
// ---------------------------------------------------------
// CWEPSecuritySettingsImpl::SaveL
// ---------------------------------------------------------
//
void CWEPSecuritySettingsImpl::SaveL( TUint32 aIapId,
CCommsDatabase& aCommsDb ) const
{
CCommsDbTableView* wLanServiceTable;
// Caller MUST initiate a transaction, WE WILL NOT.
wLanServiceTable = aCommsDb.OpenViewMatchingUintLC(
TPtrC( WLAN_SERVICE ), TPtrC( WLAN_SERVICE_ID ), aIapId );
TInt errorCode = wLanServiceTable->GotoFirstRecord();
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 ), aIapId );
}
// Save index of key in use
wLanServiceTable->WriteUintL( TPtrC( WLAN_WEP_INDEX ),
( TUint32& ) iKeyInUse );
// Save index of key in use
wLanServiceTable->WriteUintL( TPtrC( NU_WLAN_AUTHENTICATION_MODE ),
( TUint32& ) iAuthentication );
// Save first WEP key
wLanServiceTable->WriteTextL( TPtrC( NU_WLAN_WEP_KEY1 ),
iKeyData[KFirstKey] );
// Save second WEP key
wLanServiceTable->WriteTextL( TPtrC( NU_WLAN_WEP_KEY2 ),
iKeyData[KSecondKey] );
// Save third WEP key
wLanServiceTable->WriteTextL( TPtrC( NU_WLAN_WEP_KEY3 ),
iKeyData[KThirdKey] );
// Save fourth WEP key
wLanServiceTable->WriteTextL( TPtrC( NU_WLAN_WEP_KEY4 ),
iKeyData[KFourthKey] );
// Save the format of the keys
wLanServiceTable->WriteUintL( TPtrC( WLAN_WEP_KEY1_FORMAT ),
( TUint32& ) iKeyFormat[KFirstKey] );
wLanServiceTable->WriteUintL( TPtrC( WLAN_WEP_KEY2_FORMAT ),
( TUint32& ) iKeyFormat[KSecondKey] );
wLanServiceTable->WriteUintL( TPtrC( WLAN_WEP_KEY3_FORMAT ),
( TUint32& ) iKeyFormat[KThirdKey] );
wLanServiceTable->WriteUintL( TPtrC( WLAN_WEP_KEY4_FORMAT ),
( TUint32& ) iKeyFormat[KFourthKey] );
wLanServiceTable->PutRecordChanges();
CleanupStack::PopAndDestroy( wLanServiceTable ); // wLanServiceTable
}
// ---------------------------------------------------------
// CWEPSecuritySettingsImpl::SetLenKeyDataFromText
// ---------------------------------------------------------
//
void CWEPSecuritySettingsImpl::SetLenKeyDataFromText( const TInt aIndex )
{
const TUint keyDataLength = iKeyData[aIndex].Length();
if ( keyDataLength == KKeyDataLength104Bits )
{
iKeyLength[aIndex] = CWEPSecuritySettings::E104Bits;
}
else if ( keyDataLength == KKeyDataLength232Bits && iIsWEP256Enabled )
{
iKeyLength[aIndex] = CWEPSecuritySettings::E232Bits;
}
else // if ( aKeyDataLength == KKeyDataLength40Bits ) or any
{ // other case, by default
iKeyLength[aIndex] = CWEPSecuritySettings::E40Bits;
}
}
// ---------------------------------------------------------
// CWEPSecuritySettingsImpl::IsValid
// ---------------------------------------------------------
//
TBool CWEPSecuritySettingsImpl::IsValid()
{
return ( KeyData( KeyInUse() )->Length() ==
ExpectedLengthOfKeyData( KeyLength( KeyInUse() ) ) );
}
//----------------------------------------------------------
// CWEPSecuritySettingsImpl::ExpectedLengthOfKeyData
//----------------------------------------------------------
//
TInt CWEPSecuritySettingsImpl::ExpectedLengthOfKeyData(
CWEPSecuritySettings::TWEPKeyLength aKeyLength )
{
TInt retVal;
switch ( aKeyLength )
{
case CWEPSecuritySettings::E40Bits:
{
retVal = KKeyDataLength40Bits;
break;
}
case CWEPSecuritySettings::E104Bits:
{
retVal = KKeyDataLength104Bits;
break;
}
case CWEPSecuritySettings::E232Bits:
{
retVal = WEP256Enabled() ? KKeyDataLength232Bits : 0;
break;
}
default:
{
retVal = 0;
break;
}
}
return retVal;
}
// ---------------------------------------------------------
// CWEPSecuritySettingsImpl::SetKeyDataL
// ---------------------------------------------------------
//
TInt CWEPSecuritySettingsImpl::SetKeyDataL( const TInt aElement,
const TDesC& aKeyData,
const TBool aHex )
{
CWEPSecuritySettings::TWEPKeyFormat keyFormat = aHex ?
CWEPSecuritySettings::EHexadecimal :
CWEPSecuritySettings::EAscii;
SetKeyFormat( aElement, keyFormat );
TInt dataLength = aKeyData.Length();
if ( dataLength == KKeyDataLength40Bits ||
dataLength == KKeyDataLength40Bits / KAsciiHexRatio )
{
SetKeyLength( aElement, CWEPSecuritySettings::E40Bits );
}
else if ( dataLength == KKeyDataLength104Bits ||
dataLength == KKeyDataLength104Bits / KAsciiHexRatio )
{
SetKeyLength( aElement, CWEPSecuritySettings::E104Bits );
}
else if ( dataLength == KKeyDataLength232Bits ||
dataLength == KKeyDataLength232Bits / KAsciiHexRatio )
{
SetKeyLength( aElement, CWEPSecuritySettings::E232Bits );
}
else
{
return KErrInvalidLength;
}
TInt expectedLength = ExpectedLengthOfKeyData( KeyLength( aElement ) );
if ( keyFormat == CWEPSecuritySettings::EAscii )
{
expectedLength /= KAsciiHexRatio; //Ascii key is half the length of Hex
}
HBufC8* buf8 = HBufC8::NewL( dataLength );
CleanupStack::PushL( buf8 );
buf8->Des().Copy( aKeyData );
TInt errData = VerifyKeyData( *buf8, expectedLength,
KeyFormat( aElement ) );
if ( errData == KErrNone )
{
if ( aHex )
{
SetKeyData( aElement, buf8->Des() );
}
else
{
HBufC8* buf8Conv = HBufC8::NewL( dataLength * KAsciiHexRatio );
// Ascii key is half the length of Hex
ConvertAsciiToHex( buf8->Des(), buf8Conv );
SetKeyData( aElement, buf8Conv->Des() );
delete buf8Conv;
}
}
CleanupStack::PopAndDestroy( buf8 ); // buf8
return errData;
}
//----------------------------------------------------------
// CWEPSecuritySettingsImpl::VerifyKeyData
//----------------------------------------------------------
//
TInt CWEPSecuritySettingsImpl::VerifyKeyData( const TDesC8& aTextToTest,
TInt aLengthOfKeyData,
CWEPSecuritySettings::TWEPKeyFormat aWEPKeyFormat )
{
TInt err = KErrNone;
TInt lengthOfText = aTextToTest.Length();
if ( aTextToTest.Length() != aLengthOfKeyData )
{
err = KErrInvalidLength;
}
else if ( aWEPKeyFormat == CWEPSecuritySettings::EHexadecimal )
{
for ( TInt i = 0; i < lengthOfText; i++ )
{
TChar c ( aTextToTest[i] );
if ( !c.IsHexDigit() )
{
err = KErrInvalidChar;
break;
}
}
}
return err;
}
//----------------------------------------------------------
// CWEPSecuritySettingsImpl::ConvertAsciiToHex
//----------------------------------------------------------
//
void CWEPSecuritySettingsImpl::ConvertAsciiToHex( const TDesC8& aSource,
HBufC8*& aDest )
{
_LIT( hex, "0123456789ABCDEF" );
TInt size = aSource.Size();
TPtr8 ptr = aDest->Des();
for ( TInt ii = 0; ii < size; ii++ )
{
TText8 ch = aSource[ii];
ptr.Append( hex()[(ch/16)&0x0f] );
ptr.Append( hex()[ch&0x0f] );
}
}
// ---------------------------------------------------------
// CWEPSecuritySettingsImpl::LoadL
// ---------------------------------------------------------
//
void CWEPSecuritySettingsImpl::LoadL( TUint32 aIapId,
CMDBSession& aSession )
{
if ( aIapId == KUidNone )
{
return;
}
// Load WLAN service table
// first get WLAN table id
CMDBGenericRecord* generic = static_cast<CMDBGenericRecord*>
( CCDRecordBase::RecordFactoryL( 0 ) );
CleanupStack::PushL( generic );
generic->InitializeL( TPtrC( WLAN_SERVICE ), NULL );
generic->LoadL( aSession );
TMDBElementId wlanTableId = generic->TableId();
CMDBField<TUint32>* sidField = static_cast<CMDBField<TUint32>*>
(generic->GetFieldByIdL( KCDTIdWlanServiceId));
// prime with service id
*sidField = aIapId;
if( generic->FindL( aSession) )
{
// get the values
CMDBField<TUint>* keyInUseField = static_cast<CMDBField<TUint>*>
( generic->GetFieldByIdL( KCDTIdWlanWepIndex ) );
( TUint32& )iKeyInUse = *keyInUseField;
CMDBField<TUint>* authenticationField = static_cast<CMDBField<TUint>*>
( generic->GetFieldByIdL( KCDTIdWlanAuthMode ) );
( TUint32& )iAuthentication = *authenticationField;
CMDBField<TDesC8>* wepKey1Field = static_cast<CMDBField<TDesC8>*>
( generic->GetFieldByIdL( KCDTIdWlanWepKey1 ) );
iKeyData[ KFirstKey ] = *wepKey1Field;
SetLenKeyDataFromText( KFirstKey );
CMDBField<TDesC8>* wepKey2Field = static_cast<CMDBField<TDesC8>*>
( generic->GetFieldByIdL( KCDTIdWlanWepKey2 ) );
iKeyData[ KSecondKey ] = *wepKey2Field;
SetLenKeyDataFromText( KSecondKey );
CMDBField<TDesC8>* wepKey3Field = static_cast<CMDBField<TDesC8>*>
( generic->GetFieldByIdL( KCDTIdWlanWepKey3 ) );
iKeyData[ KThirdKey ] = *wepKey3Field;
SetLenKeyDataFromText( KThirdKey );
CMDBField<TDesC8>* wepKey4Field = static_cast<CMDBField<TDesC8>*>
( generic->GetFieldByIdL( KCDTIdWlanWepKey4 ) );
iKeyData[ KFourthKey ] = *wepKey4Field;
SetLenKeyDataFromText( KFourthKey );
CMDBField<TUint>* formatKey1Field = static_cast<CMDBField<TUint>*>
( generic->GetFieldByIdL( KCDTIdWlanFormatKey1 ) );
( TUint32& )iKeyFormat[ KFirstKey ] = *formatKey1Field;
CMDBField<TUint>* formatKey2Field = static_cast<CMDBField<TUint>*>
( generic->GetFieldByIdL( KCDTIdWlanFormatKey2 ) );
( TUint32& )iKeyFormat[ KSecondKey ] = *formatKey2Field;
CMDBField<TUint>* formatKey3Field = static_cast<CMDBField<TUint>*>
( generic->GetFieldByIdL( KCDTIdWlanFormatKey3 ) );
( TUint32& )iKeyFormat[ KThirdKey ] = *formatKey3Field;
CMDBField<TUint>* formatKey4Field = static_cast<CMDBField<TUint>*>
( generic->GetFieldByIdL( KCDTIdWlanFormatKey4 ) );
( TUint32& )iKeyFormat[ KFourthKey ] = *formatKey4Field;
}
CleanupStack::PopAndDestroy( generic );
}
// ---------------------------------------------------------
// CWEPSecuritySettingsImpl::SaveL
// ---------------------------------------------------------
//
void CWEPSecuritySettingsImpl::SaveL( TUint32 aIapId,
CMDBSession& aSession ) const
{
const TInt KRetryWait = 100000; // Wait time between retries in TTimeIntervalMicroSeconds32
const TInt KRetryCount = 50; // Max retry count
// Load WLAN service table
// first get WLAN table id
CMDBGenericRecord* generic = static_cast<CMDBGenericRecord*>
( CCDRecordBase::RecordFactoryL( 0 ) );
CleanupStack::PushL( generic );
generic->InitializeL( TPtrC( WLAN_SERVICE ), NULL );
generic->LoadL( aSession );
TMDBElementId wlanTableId = generic->TableId();
CMDBField<TUint32>* sidField = static_cast<CMDBField<TUint32>*>
( generic->GetFieldByIdL( KCDTIdWlanServiceId ) );
// prime with service id
*sidField = aIapId;
TBool found = generic->FindL( aSession);
// If loading failed, WLAN service record will be
// created and StoreL()-d, otherwise, ModifyL()
CMDBField<TUint>* keyInUseField = static_cast<CMDBField<TUint>*>
( generic->GetFieldByIdL( KCDTIdWlanWepIndex ) );
keyInUseField->SetL( iKeyInUse );
CMDBField<TUint>* authenticationField = static_cast<CMDBField<TUint>*>
( generic->GetFieldByIdL( KCDTIdWlanAuthMode ) );
authenticationField->SetL( iAuthentication );
CMDBField<TDesC8>* wepKey1Field = static_cast<CMDBField<TDesC8>*>
( generic->GetFieldByIdL( KCDTIdWlanWepKey1 ) );
wepKey1Field->SetL( iKeyData[ KFirstKey ] );
CMDBField<TDesC8>* wepKey2Field = static_cast<CMDBField<TDesC8>*>
( generic->GetFieldByIdL( KCDTIdWlanWepKey2 ) );
wepKey2Field->SetL( iKeyData[ KSecondKey ] );
CMDBField<TDesC8>* wepKey3Field = static_cast<CMDBField<TDesC8>*>
( generic->GetFieldByIdL( KCDTIdWlanWepKey3 ) );
wepKey3Field->SetL( iKeyData[ KThirdKey ] );
CMDBField<TDesC8>* wepKey4Field = static_cast<CMDBField<TDesC8>*>
( generic->GetFieldByIdL( KCDTIdWlanWepKey4 ) );
wepKey4Field->SetL( iKeyData[ KFourthKey ] );
CMDBField<TUint>* formatKey1Field = static_cast<CMDBField<TUint>*>
( generic->GetFieldByIdL( KCDTIdWlanFormatKey1 ) );
formatKey1Field->SetL( iKeyFormat[ KFirstKey ] );
CMDBField<TUint>* formatKey2Field = static_cast<CMDBField<TUint>*>
( generic->GetFieldByIdL( KCDTIdWlanFormatKey2 ) );
formatKey2Field->SetL( iKeyFormat[ KSecondKey ] );
CMDBField<TUint>* formatKey3Field = static_cast<CMDBField<TUint>*>
( generic->GetFieldByIdL( KCDTIdWlanFormatKey3 ) );
formatKey3Field->SetL( iKeyFormat[ KThirdKey ] );
CMDBField<TUint>* formatKey4Field = static_cast<CMDBField<TUint>*>
( generic->GetFieldByIdL( KCDTIdWlanFormatKey4 ) );
formatKey4Field->SetL( iKeyFormat[ KFourthKey ] );
TInt error( KErrNone );
// Saving changes
for ( TInt i( 0 ); i < KRetryCount; i++ )
{
// If table existed modify it
if( found )
{
TRAP( error, generic->ModifyL( aSession ) );
}
// Otherwise store a new record
else
{
generic->SetRecordId( KCDNewRecordRequest );
TRAP( error, generic->StoreL( aSession ) );
}
// If operation failed with KErrLocked, we'll retry.
if ( KErrLocked == error )
{
User::After( KRetryWait );
}
// Otherwise break the retry loop.
else
{
break;
}
}
// If the save operation failed, leave now.
User::LeaveIfError( error );
CleanupStack::PopAndDestroy( generic );
}
// End of File