author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 04 Oct 2010 02:11:29 +0300 | |
changeset 50 | 0bcc0c74cec9 |
permissions | -rw-r--r-- |
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// Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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// All rights reserved. |
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// This component and the accompanying materials are made available |
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// under the terms of the License "Symbian Foundation License v1.0" |
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// which accompanies this distribution, and is available |
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// at the URL "http://www.symbianfoundation.org/legal/sfl-v10.html". |
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// |
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// Initial Contributors: |
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// Nokia Corporation - initial contribution. |
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// |
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// Contributors: |
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// |
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// Description: |
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// |
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#include <bluetooth/logger.h> |
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#include "encryptionkeyrefreshhelper.h" |
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#include "hcifacade.h" |
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#include "linkmgr.h" |
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#ifdef __FLOG_ACTIVE |
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_LIT8(KLogComponent, LOG_COMPONENT_LINKMGR); |
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#endif |
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CEncryptionKeyRefresher::CEncryptionKeyRefresher(CPhysicalLinksManager& aLinkMgr, CPhysicalLink& aLink) |
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: CPhysicalLinkHelper(aLinkMgr, aLink) |
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{ |
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LOG_FUNC |
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} |
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CEncryptionKeyRefresher* CEncryptionKeyRefresher::NewL(CPhysicalLinksManager& aLinkMgr, CPhysicalLink& aLink) |
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{ |
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LOG_STATIC_FUNC |
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CEncryptionKeyRefresher* self = new(ELeave) CEncryptionKeyRefresher(aLinkMgr, aLink); |
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CleanupStack::PushL(self); |
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self->ConstructL(); |
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CleanupStack::Pop(self); |
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return self; |
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} |
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void CEncryptionKeyRefresher::ConstructL() |
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{ |
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LOG_FUNC |
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BaseConstructL(); |
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iStateFactory = CEncryptionKeyRefresherStateFactory::NewL(); |
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iState = &(iStateFactory->GetState(CEncryptionKeyRefresherStateFactory::EIdle)); |
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} |
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CEncryptionKeyRefresher::~CEncryptionKeyRefresher() |
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{ |
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LOG_FUNC |
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} |
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void CEncryptionKeyRefresher::EncryptionKeyRefreshComplete(TInt aError) |
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{ |
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LOG_FUNC |
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iState->EncryptionKeyRefreshComplete(*this, aError); |
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} |
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void CEncryptionKeyRefresher::TimerExpired() |
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{ |
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LOG_FUNC |
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iState->TimerExpired(*this); |
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} |
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void CEncryptionKeyRefresher::HandleError( TInt aError) |
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{ |
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LOG_FUNC |
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iState->Error(*this, aError); |
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} |
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void CEncryptionKeyRefresher::StartHelper() |
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{ |
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LOG_FUNC |
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iState->Start(*this); |
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} |
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void CEncryptionKeyRefresher::EventReceived(TBTBasebandEventNotification& aEvent) |
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{ |
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LOG_FUNC |
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iState->EventReceived(*this, aEvent); |
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} |
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//---------------------------------------------------------------------------------- |
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// STATE FACTORY |
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//---------------------------------------------------------------------------------- |
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CEncryptionKeyRefresherStateFactory* CEncryptionKeyRefresherStateFactory::NewL() |
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{ |
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LOG_STATIC_FUNC |
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CEncryptionKeyRefresherStateFactory* ret=new (ELeave) CEncryptionKeyRefresherStateFactory(); |
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CleanupStack::PushL(ret); |
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ret->ConstructL(); |
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CleanupStack::Pop(ret); |
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return ret; |
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} |
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void CEncryptionKeyRefresherStateFactory::ConstructL() |
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{ |
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LOG_FUNC |
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iStates[EIdle] =new (ELeave) TEkrStateIdle(*this); |
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iStates[EDisablingLPM] =new (ELeave) TEkrStateDisablingLPM(*this); |
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iStates[ERefreshingKey] =new (ELeave) TEkrStateRefreshingKey(*this); |
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} |
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|
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CEncryptionKeyRefresherStateFactory::CEncryptionKeyRefresherStateFactory() |
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{ |
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LOG_FUNC |
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iStates.DeleteAll(); |
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} |
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|
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const TEncryptionKeyRefresherState& CEncryptionKeyRefresherStateFactory::GetState(CEncryptionKeyRefresherStateFactory::TEncryptionKeyRefresherStates aState) const |
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{ |
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LOG_FUNC |
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__ASSERT_DEBUG(iStates[aState], Panic(EEncryptionKeyRefresherInvalidState)); |
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return *iStates[aState]; |
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} |
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|
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TInt CEncryptionKeyRefresherStateFactory::StateIndex(const TEncryptionKeyRefresherState* aState) const |
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{ |
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LOG_FUNC |
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TInt state; |
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for (state = 0; state < EEncryptionKeyRefresherMaxState; state++) |
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{ |
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if (iStates[state] == aState) |
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{ |
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return state; |
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} |
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} |
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|
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return KUnknownState; |
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} |
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|
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|
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//---------------------------------------------------------------------------------- |
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// STATES |
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//---------------------------------------------------------------------------------- |
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|
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TEncryptionKeyRefresherState::TEncryptionKeyRefresherState(CEncryptionKeyRefresherStateFactory& aFactory) |
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: iFactory(aFactory) |
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{ |
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LOG_FUNC |
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} |
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|
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void TEncryptionKeyRefresherState::PanicInState(TLinkPanic aPanic) const |
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{ |
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LOG_FUNC |
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Panic(aPanic, iFactory.StateIndex(this)); |
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} |
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|
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void TEncryptionKeyRefresherState::ChangeState(CEncryptionKeyRefresher& aContext, CEncryptionKeyRefresherStateFactory::TEncryptionKeyRefresherStates aState) const |
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{ |
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LOG_FUNC |
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|
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aContext.iState->Exit(aContext); |
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|
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#ifdef __FLOG_ACTIVE |
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const TEncryptionKeyRefresherState* state=&iFactory.GetState(aState); |
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LOG2(_L("EncryptionKeyRefresher: State %S -> %S"), &aContext.iState->iName, &state->iName); |
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#endif //__FLOG_ACTIVE |
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aContext.iState=&iFactory.GetState(aState); |
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|
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aContext.iState->Enter(aContext); |
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} |
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|
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void TEncryptionKeyRefresherState::Enter(CEncryptionKeyRefresher& /*aContext*/) const |
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{ |
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LOG_FUNC |
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// do nothing |
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} |
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|
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void TEncryptionKeyRefresherState::Exit(CEncryptionKeyRefresher& /*aContext*/) const |
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{ |
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LOG_FUNC |
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// do nothing |
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} |
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|
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void TEncryptionKeyRefresherState::Start(CEncryptionKeyRefresher& /*aContext*/) const |
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{ |
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LOG_FUNC |
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PanicInState(EEncryptionKeyRefresherStateMachineInvalidEvent); |
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} |
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|
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void TEncryptionKeyRefresherState::Error(CEncryptionKeyRefresher& aContext, TInt /*aErr*/) const |
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{ |
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LOG_FUNC |
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aContext.CancelNotify(); |
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aContext.RemoveTimer(); |
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ChangeState(aContext, CEncryptionKeyRefresherStateFactory::EIdle); |
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} |
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|
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void TEncryptionKeyRefresherState::EventReceived(CEncryptionKeyRefresher& /*aContext*/, TBTBasebandEventNotification& /*aEvent*/) const |
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{ |
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LOG_FUNC |
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// do nothing |
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} |
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|
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void TEncryptionKeyRefresherState::TimerExpired(CEncryptionKeyRefresher& aContext) const |
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{ |
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LOG_FUNC |
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aContext.CancelNotify(); |
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ChangeState(aContext, CEncryptionKeyRefresherStateFactory::EIdle); |
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} |
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|
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void TEncryptionKeyRefresherState::EncryptionKeyRefreshComplete(CEncryptionKeyRefresher& /*aContext*/, TInt /*aError*/) const |
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{ |
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LOG_FUNC |
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// do nothing |
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} |
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|
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//---------------------------------------------------------------------------------- |
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|
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TEkrStateIdle::TEkrStateIdle(CEncryptionKeyRefresherStateFactory& aFactory) |
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: TEncryptionKeyRefresherState(aFactory) |
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{ |
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LOG_FUNC |
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STATENAME("TEkrStateIdle"); |
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} |
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|
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void TEkrStateIdle::Start(CEncryptionKeyRefresher& aContext) const |
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{ |
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LOG_FUNC |
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aContext.QueueTimer(KTimeoutEncryptionKeyRefresh); // watchdog timer |
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ChangeState(aContext, CEncryptionKeyRefresherStateFactory::EDisablingLPM); |
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} |
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|
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void TEkrStateIdle::Enter(CEncryptionKeyRefresher& aContext) const |
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{ |
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LOG_FUNC |
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// async call to delete the helper |
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aContext.iLink.AsyncDeleteKeyRefresher(); |
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} |
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|
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//---------------------------------------------------------------------------------- |
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|
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TEkrStateDisablingLPM::TEkrStateDisablingLPM(CEncryptionKeyRefresherStateFactory& aFactory) |
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: TEncryptionKeyRefresherState(aFactory) |
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{ |
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LOG_FUNC |
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STATENAME("TEkrStateDisablingLPM"); |
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} |
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|
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void TEkrStateDisablingLPM::Enter(CEncryptionKeyRefresher& aContext) const |
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{ |
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LOG_FUNC |
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|
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if (aContext.iLink.LinkMode() == EActiveMode) |
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{ |
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// Skip straight on to refresh the key |
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ChangeState(aContext, CEncryptionKeyRefresherStateFactory::ERefreshingKey); |
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} |
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else |
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{ |
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aContext.NotifyBasebandEvent(ENotifyActiveMode); |
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} |
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|
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// DisableLPM even if link is active to prevent possible LPM requests during key refresh |
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aContext.DisableLPM(); |
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} |
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|
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void TEkrStateDisablingLPM::EventReceived(CEncryptionKeyRefresher& aContext, TBTBasebandEventNotification& aEvent) const |
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{ |
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LOG_FUNC |
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if (aEvent.EventType()==ENotifyActiveMode && aEvent.ErrorCode()==KErrNone) |
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{ |
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ChangeState(aContext, CEncryptionKeyRefresherStateFactory::ERefreshingKey); |
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} |
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else |
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{ |
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LOG(_L("CEncryptionKeyRefresher failed in DisableLPM")); |
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// If we can't put ourselves into active mode then don't bother with |
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// refresh, it'll probably cause more problems than it would solve |
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// we can quit SM, don't need to rewind |
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ChangeState(aContext, CEncryptionKeyRefresherStateFactory::EIdle); |
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} |
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} |
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|
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//---------------------------------------------------------------------------------- |
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TEkrStateRefreshingKey::TEkrStateRefreshingKey(CEncryptionKeyRefresherStateFactory& aFactory) |
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: TEncryptionKeyRefresherState(aFactory) |
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{ |
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LOG_FUNC |
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STATENAME("TEkrStateRefreshingKey"); |
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} |
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|
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void TEkrStateRefreshingKey::Enter(CEncryptionKeyRefresher& aContext) const |
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{ |
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LOG_FUNC |
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|
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TRAPD(err, aContext.iLinkMgr.HCIFacade().RefreshEncryptionKeyL(aContext.iLink.Handle())); |
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|
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if(err) |
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{ |
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ChangeState(aContext, CEncryptionKeyRefresherStateFactory::EIdle); |
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} |
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} |
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|
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|
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void TEkrStateRefreshingKey::EncryptionKeyRefreshComplete(CEncryptionKeyRefresher& aContext, TInt __DEBUG_ONLY(aError)) const |
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{ |
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LOG_FUNC |
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LOG1(_L("EncryptionKeyRefresh completed with error %d"), aError); |
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|
306 |
|
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// Don't really care what the error is, this is just a best effort service |
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Revision: 201039
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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// anyway |
0bcc0c74cec9
Revision: 201039
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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309 |
ChangeState(aContext, CEncryptionKeyRefresherStateFactory::EIdle); |
0bcc0c74cec9
Revision: 201039
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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} |
0bcc0c74cec9
Revision: 201039
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
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311 |