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// Copyright (c) 2006-2010 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 "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-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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// Asynchronous security server active object class.
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//
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//
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#include <e32base.h>
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#include <e32base_private.h>
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#include "c_security_svr_async.h"
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#include "rm_debug_logging.h"
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using namespace Debug;
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__ASSERT_COMPILE(_FOFF(TEventInfo, iEventType) == 20); // Checking that adding iActionTaken hasn't resized the class
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CSecuritySvrAsync::CSecuritySvrAsync(CSecuritySvrSession* aSession, TProcessId aAgentId)
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: CActive(CActive::EPriorityStandard),
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iSession(aSession),
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iProcessName(NULL),
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iAgentId(aAgentId)
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{
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LOG_MSG2("CSecuritySvrAsync::CSecuritySvrAsync(aAgentId=0x%x)", TUint(aAgentId.Id()));
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CActiveScheduler::Add(this);
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}
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// returns a CSecuritySvrAsync active object associated with
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// the specified agent and debugged process.
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CSecuritySvrAsync* CSecuritySvrAsync::NewL(CSecuritySvrSession* aSession, const TDesC8& aProcessName, TProcessId aAgentId)
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{
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CSecuritySvrAsync* me = new (ELeave) CSecuritySvrAsync(aSession, aAgentId);
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CleanupStack::PushL(me);
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me->ConstructL(aProcessName);
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CleanupStack::Pop(me);
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LOG_MSG2("CSecuritySvrAsync::NewL() obj addr=0x%x", me);
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return (me);
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}
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// dtor
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CSecuritySvrAsync::~CSecuritySvrAsync()
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{
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LOG_MSG("CSecuritySvrAsync::~CSecuritySvrAsync()");
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// NOTE: the Cancel() function calls DoCancel() which may rely on class members so be careful not
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// to destroy/close data members before this call if they are needed
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Cancel();
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iProcessName.Close();
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}
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// Associates the agent id and process name with the Active Object being constructed
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void CSecuritySvrAsync::ConstructL(const TDesC8& aProcessName)
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{
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LOG_MSG("CSecuritySvrAsync::ConstructL()");
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iProcessName.CreateL(aProcessName.Length());
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iProcessName.Copy(aProcessName);
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}
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// RunL() completes a previously issued call (currently only GetEvent() completion)
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void CSecuritySvrAsync::RunL()
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{
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LOG_MSG4("CSecuritySvrAsync::RunL() &iInfo=0x%08x, iAgentId.Id()=0x%x, iEventType=%d",
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(TUint8*)&iInfo, iAgentId.Id(), iInfo.iEventType);
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LOG_MSG5(" RunL() : iProcessIdValid=%d, iThreadId=0x%x, iProcessId=0x%x, &iStatus=0x%x",
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iInfo.iProcessIdValid, TUint(iInfo.iThreadId) , TUint(iInfo.iProcessId), &iStatus );
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// Something bad happened in the driver
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User::LeaveIfError(iStatus.Int());
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// Write back the event data to the debug agent.
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// For compatibility we need to check the size of the buffer that the
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// client has passed in as the size of TEventInfo will increase over time.
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// Clients can calculate the required size from the EApiConstantsTEventInfoSize entry
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// in the Debug Functionality block but may still pass in buffers which
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// are smaller than the Debug Security Server's calculation of sizeof(TEventInfo),
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// returning KErrTooBig in this case would be
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// inappropriate as we would break compatibility.
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TInt dataLengthToReturn = sizeof(TEventInfo);
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TInt maxLengthClientSide = iMessage.GetDesMaxLengthL(1);
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if(maxLengthClientSide < dataLengthToReturn)
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{
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dataLengthToReturn = maxLengthClientSide;
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}
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TPtr8 data((TUint8*)&iInfo, dataLengthToReturn, dataLengthToReturn);
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iMessage.WriteL(1, data, 0);
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iMessage.Complete(KErrNone);
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}
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// Cancels the oustanding GetEvent call. May cope with other async calls in future.
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void CSecuritySvrAsync::DoCancel()
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{
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LOG_MSG("CSecuritySvrAsync::DoCancel()");
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iSession->Server().iKernelDriver.CancelGetEvent(iProcessName,iAgentId.Id());
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iMessage.Complete(KErrCancel);
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}
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// Report any leave to the client if possible.
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TInt CSecuritySvrAsync::RunError(TInt aError)
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{
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LOG_MSG2("CSecuritySvrAsync::RunError()=%d", aError);
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iMessage.Complete(aError);
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return KErrNone;
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}
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/**
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* Start an asynchronous GetEvent call to the debug driver
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* and activates this active object.
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* If active object already active, completes the message with error KErrInUse
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* and takes no further action.
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*/
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void CSecuritySvrAsync::GetEvent(const RMessage2& aMessage)
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{
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if( !IsActive() )
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{
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iMessage = aMessage;
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LOG_MSG4("CSecuritySvrAsync::GetEvent() this = 0x%08x, iInfo=0x%08x, iStatus=0x%08x", this, &iInfo, &iStatus);
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SetActive();
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iSession->Server().iKernelDriver.GetEvent(iProcessName,iAgentId.Id(),iStatus,iInfo);
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}
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else
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{
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LOG_MSG2("CSecuritySvrAsync::GetEvent() this = 0x%08x: ! Warning: ActiveObject is active. Returning with no effect",
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this );
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aMessage.Complete( KErrInUse );
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}
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}
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// Used for identifying which AO is associated with a debugged process
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const TDesC8& CSecuritySvrAsync::ProcessName(void)
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{
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return iProcessName;
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}
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// End of file - c_security_svr_async.cpp
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