// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
// All rights reserved.
// This component and the accompanying materials are made available
// under the terms of "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:
// Name : CSIPSecChallengeAKA.cpp
// Part of : SIPSec/DigestPlugin
// Version : SIP/6.0
//
#include "SipLogs.h"
#include "CSIPSecChallengeAKA.h"
#include "CSIPSecDigest.h"
#include "CSIPSecSIMRecord.h"
#include "CSIPSecDigestPlugin.h"
#include "sipsecdigestcontext.h"
#include "sipstrings.h"
#include "sipstrconsts.h"
#include <imcvcodc.h>
// ============================ MEMBER FUNCTIONS ===============================
// -----------------------------------------------------------------------------
// CSIPSecChallengeAKA::CSIPSecAlgAKA
// -----------------------------------------------------------------------------
//
CSIPSecChallengeAKA::CSIPSecChallengeAKA( CSIPSecDigest::TChallengeType aType,
CSIPSecRequestData::TQop aQop ) :
CSIPSecChallengeMD5( aType, aQop )
{
}
// -----------------------------------------------------------------------------
// CSIPSecChallengeAKA::NewLC
// -----------------------------------------------------------------------------
//
CSIPSecChallengeAKA*
CSIPSecChallengeAKA::NewLC( CSIPSecDigest::TChallengeType aType,
CSIPAuthenticateHeaderBase& aAuthenticateHeader,
CSIPSecRequestData::TQop aQop )
{
CSIPSecChallengeAKA* self = new ( ELeave ) CSIPSecChallengeAKA( aType,
aQop );
CleanupStack::PushL( self );
self->ConstructL( aAuthenticateHeader );
return self;
}
// -----------------------------------------------------------------------------
// CSIPSecChallengeAKA::~CSIPSecChallengeAKA
// -----------------------------------------------------------------------------
//
CSIPSecChallengeAKA::~CSIPSecChallengeAKA()
{
}
// -----------------------------------------------------------------------------
// CSIPSecChallengeAKA::VerifyTypeL
// -----------------------------------------------------------------------------
//
void CSIPSecChallengeAKA::VerifyTypeL( CSIPSecUserRecord::TType aType ) const
{
__ASSERT_ALWAYS( aType == CSIPSecUserRecord::EIMS,
User::Leave( KErrPermissionDenied ) );
}
// -----------------------------------------------------------------------------
// CSIPSecChallengeAKA::CreateUserRecordL
// -----------------------------------------------------------------------------
//
CSIPSecUserRecord*
CSIPSecChallengeAKA::CreateUserRecordL( const TDesC8& aRealm,
const MSIPSecUser& aUser,
TRegistrationId aRegistrationId,
TTransactionId aTransactionId,
TUint aResponseCode ) const
{
CSIPSecSIMRecord* record = CSIPSecSIMRecord::NewL( aRealm,
aUser,
aRegistrationId,
aTransactionId );
record->UpdateMessageCounter( aResponseCode );
return record;
}
// -----------------------------------------------------------------------------
// CSIPSecChallengeAKA::SupportedAlgorithm
// -----------------------------------------------------------------------------
//
RStringF CSIPSecChallengeAKA::SupportedAlgorithm()
{
return SIPStrings::StringF( SipStrConsts::EAKAv1MD5 );
}
// -----------------------------------------------------------------------------
// CSIPSecChallengeAKA::AlgorithmName
// -----------------------------------------------------------------------------
//
RStringF CSIPSecChallengeAKA::AlgorithmName() const
{
return CSIPSecChallengeAKA::SupportedAlgorithm();
}
// -----------------------------------------------------------------------------
// CSIPSecChallengeAKA::ProcessResponseL
// -----------------------------------------------------------------------------
//
TBool CSIPSecChallengeAKA::ProcessResponseL( TSIPSecDigestCtxSetup& aContext,
TBool& aAskCredentials ) const
{
// AKA gets credentials from SIM card, not from MSIPSecUser
aAskCredentials = EFalse;
CSIPSecSIMRecord& userData =
static_cast< CSIPSecSIMRecord& >( aContext.UserData() );
if ( userData.IsValid() )
{
if ( userData.Failure() == CSIPSecSIMRecord::ESQN )
{
const TInt KBase64EncodedAutsLength = 20;
HBufC8* auts = HBufC8::NewLC( KBase64EncodedAutsLength );
TPtr8 autsPtr( auts->Des() );
TImCodecB64 encoder;
User::LeaveIfError( encoder.Encode( userData.AUTS(), autsPtr ) );
aContext.SetParamValueL( SipStrConsts::EAuts, *auts );
CleanupStack::PopAndDestroy( auts );
}
if ( userData.SecretData().Length() == 0 )
{
CalculateSecretDataA1L( aContext );
}
return EFalse;
}
aContext.RequestUserCredentialsL();
return ETrue;
}
// -----------------------------------------------------------------------------
// CSIPSecChallengeAKA::ProcessRequestL
// -----------------------------------------------------------------------------
//
void
CSIPSecChallengeAKA::ProcessRequestL( TSIPSecDigestCtxProcess& aContext ) const
{
__SIP_LOG( "SIPSecChallAKA:ProcessRequestL" )
CSIPSecSIMRecord& userData =
static_cast< CSIPSecSIMRecord& >( aContext.UserData() );
__ASSERT_ALWAYS ( userData.Failure() != CSIPSecSIMRecord::EPrivateIdentity,
User::Leave( KErrGeneral ) );
if ( userData.Failure() == CSIPSecSIMRecord::EMAC )
{
__SIP_LOG( "MAC failure, set empty nonce&response" )
aContext.SetParamWithEmptyValueL( SipStrConsts::ENonce );
aContext.SetParamWithEmptyValueL( SipStrConsts::EResponse );
}
else
{
if ( userData.Failure() == CSIPSecSIMRecord::ESQN &&
aContext.Parent().Plugin().EmptyResponseAfterSqnFailure() )
{
__SIP_LOG( "set empty response parameter after SQN" )
aContext.SetParamWithEmptyValueL( SipStrConsts::EResponse );
}
else
{
CSIPSecChallengeMD5::ProcessRequestL( aContext );
}
}
}