memspy/Driver/Kernel/Source/SubChannels/MemSpyDriverLogChanMisc.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 15 Sep 2010 13:53:27 +0300
branchRCL_3
changeset 49 7fdc9a71d314
parent 44 52e343bb8f80
child 59 8ad140f3dd41
permissions -rw-r--r--
Revision: 201035 Kit: 201036
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/*
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* Copyright (c) 2009 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 "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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*
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*/
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#include "MemSpyDriverLogChanMisc.h"
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// System includes
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#include <memspy/driver/memspydriverconstants.h>
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#include <memspy/driver/memspydriverconstants.h>
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#include <memspy/driver/memspydriverobjectsshared.h>
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// Shared includes
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#include "MemSpyDriverOpCodes.h"
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#include "MemSpyDriverObjectsInternal.h"
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// User includes
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#include "MemSpyDriverHeap.h"
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#include "MemSpyDriverUtils.h"
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#include "MemSpyDriverDevice.h"
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#include "MemSpyDriverOSAdaption.h"
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DMemSpyDriverLogChanMisc::DMemSpyDriverLogChanMisc( DMemSpyDriverDevice& aDevice, DThread& aThread )
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:   DMemSpyDriverLogChanBase( aDevice, aThread )
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    {
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    TRACE( Kern::Printf("DMemSpyDriverLogChanMisc::DMemSpyDriverLogChanMisc() - START - this: 0x%08x", this ));
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    DProcess* process = OSAdaption().DThread().GetOwningProcess( aThread );
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    if  ( process )
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        {
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        DMemSpyDriverOSAdaptionDProcess& processAdaption = OSAdaption().DProcess();
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        //
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        iSID = processAdaption.GetSID( *process );
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        iSecurityZone = processAdaption.GetSecurityZone( *process );
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        //
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        iClientIsMemSpy = ( iSID == KMemSpyUiSID || iSID == KMemSpyConsoleUiSID );
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        }
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    TRACE( Kern::Printf("DMemSpyDriverLogChanMisc::DMemSpyDriverLogChanMisc() - END - sid: 0x%08x, sz: 0x%08x, isMemSpy: %d", iSID, iSecurityZone, iClientIsMemSpy ));
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    }
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DMemSpyDriverLogChanMisc::~DMemSpyDriverLogChanMisc()
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	{
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	TRACE( Kern::Printf("DMemSpyDriverLogChanMisc::~DMemSpyDriverLogChanMisc() - START - this: 0x%08x", this ));
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	TRACE( Kern::Printf("DMemSpyDriverLogChanMisc::~DMemSpyDriverLogChanMisc() - END - this: 0x%08x", this ));
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	}
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TInt DMemSpyDriverLogChanMisc::Request( TInt aFunction, TAny* a1, TAny* a2 )
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	{
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	TInt r = DMemSpyDriverLogChanBase::Request( aFunction, a1, a2 );
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    if  ( r == KErrNone )
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        {
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	    switch( aFunction )
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		    {
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        case EMemSpyDriverOpCodeMiscSetRHeapVTable:
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            r = SetRHeapVTable( a1 );
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            break;
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        case EMemSpyDriverOpCodeMiscGetMemoryModelType:
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            r = GetMemoryModelType();
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            break;
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        case EMemSpyDriverOpCodeMiscGetRoundToPageSize:
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            r = GetRoundToPageSize( (TUint32*) a1 );
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            break;
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        case EMemSpyDriverOpCodeMiscImpersonate:
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            r = Impersonate( (TUint32) a1 );
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            break;
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        default:
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            r = KErrNotSupported;
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		    break;
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		    }
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        }
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    //
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    return r;
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	}
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TBool DMemSpyDriverLogChanMisc::IsHandler( TInt aFunction ) const
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    {
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    return ( aFunction > EMemSpyDriverOpCodeMiscBase && aFunction < EMemSpyDriverOpCodeMiscEnd );
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    }
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TInt DMemSpyDriverLogChanMisc::SetRHeapVTable( TAny* aRHeapVTable )
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    {
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    const TUint32 vTable = (TUint32) aRHeapVTable;
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    MemSpyDevice().SetRHeapVTable( vTable );
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    return KErrNone;
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    }
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   112
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parents:
diff changeset
   113
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parents:
diff changeset
   114
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parents:
diff changeset
   115
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parents:
diff changeset
   116
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diff changeset
   117
TInt DMemSpyDriverLogChanMisc::GetMemoryModelType()
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parents:
diff changeset
   118
    {
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diff changeset
   119
    TInt ret = EMemSpyMemoryModelTypeUnknown;
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parents:
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   120
    //
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   121
  	const TUint32 memModelAttrib = (TUint32) Kern::HalFunction( EHalGroupKernel, EKernelHalMemModelInfo, NULL, NULL );	
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   122
    TRACE( Kern::Printf("DMemSpyDriverLogChanMisc::GetMemoryModelType() - memModelAttrib: 0x%08x", memModelAttrib));
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parents:
diff changeset
   123
    //
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parents:
diff changeset
   124
    if  ( (memModelAttrib & EMemModelTypeMask ) == EMemModelTypeMultiple )
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parents:
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   125
        {
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parents:
diff changeset
   126
        ret = EMemSpyMemoryModelTypeMultiple;
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parents:
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   127
        }
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   128
    else if ( (memModelAttrib & EMemModelTypeMask ) == EMemModelTypeMoving )
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parents:
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   129
        {
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parents:
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   130
        ret = EMemSpyMemoryModelTypeMoving;
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parents:
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   131
        }
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parents:
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   132
    else if ( (memModelAttrib & EMemModelTypeMask ) == EMemModelTypeEmul )
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parents:
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   133
        {
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   134
        ret = EMemSpyMemoryModelTypeEmulator;
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parents:
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   135
        }
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parents:
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   136
    //
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parents:
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   137
    return ret;
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parents:
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   138
    }
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parents:
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   139
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parents:
diff changeset
   140
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   141
TInt DMemSpyDriverLogChanMisc::GetRoundToPageSize( TUint32* aValue )
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   142
    {
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parents:
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   143
    // We should probably do this user side... I think the HAL contains the page size.
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   144
    TUint32 value = 0;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   145
    TInt r = Kern::ThreadRawRead( &ClientThread(), aValue, &value, sizeof(TUint32) );
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parents:
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   146
    //
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   147
    if  ( r == KErrNone )
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parents:
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   148
        {
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parents:
diff changeset
   149
        value = Kern::RoundToPageSize( value );
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   150
        r = Kern::ThreadRawWrite( &ClientThread(), aValue, &value, sizeof(TUint32) );
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parents:
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   151
        }
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parents:
diff changeset
   152
    //
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parents:
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   153
    return r;
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parents:
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   154
    }
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parents:
diff changeset
   155
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parents:
diff changeset
   156
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   157
TInt DMemSpyDriverLogChanMisc::Impersonate( TUint32 aValue )
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   158
    {
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   159
    DMemSpyDriverOSAdaptionDThread& threadAdaption = OSAdaption().DThread();
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   160
    DMemSpyDriverOSAdaptionDProcess& processAdaption = OSAdaption().DProcess();
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   161
    //
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parents:
diff changeset
   162
    TInt r = KErrNotFound;
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parents:
diff changeset
   163
    //
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parents:
diff changeset
   164
    TUint32 sid = iSID;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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   165
    TUint32 sz = iSecurityZone;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   166
    //
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   167
    if  ( aValue != 0 )
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   168
        {
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parents:
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   169
        // Must impersonate a SID:
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parents:
diff changeset
   170
	    NKern::ThreadEnterCS();
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   171
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parents:
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   172
        DObjectCon* container = Kern::Containers()[ EProcess ];
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   173
        container->Wait();
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   174
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   175
        const TInt count = container->Count();
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   176
        for(TInt i=0; i<count; i++)
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   177
            {
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parents:
diff changeset
   178
            DObject* object = (*container)[ i ];
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   179
            if  ( object != NULL )
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   180
                {
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parents:
diff changeset
   181
                DProcess* proc = (DProcess*) object;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   182
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   183
                const TUint32 processSID = processAdaption.GetSID( *proc );
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   184
                if  ( processSID == aValue )
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   185
                    {
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   186
                    sid = processSID;
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   187
                    sz = processAdaption.GetSecurityZone( *proc );
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   188
                    TRACE( Kern::Printf("DMemSpyDriverLogChanMisc::Impersonate() - MemSpy impersonates - pid: %d, sid: 0x%08x, sz: %d", proc->iId, sid, sz ));
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   189
                    break;
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   190
                    }
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   191
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   192
                }
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   193
            }
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   194
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   195
        container->Signal();
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   196
    	NKern::ThreadLeaveCS();
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   197
        }
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   198
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   199
    DThread& thread = ClientThread();
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   200
    DProcess* myOwningProcess = threadAdaption.GetOwningProcess( thread );
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   201
    //
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   202
    if  ( myOwningProcess )
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   203
        {
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   204
        if  ( iClientIsMemSpy )
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   205
            {
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   206
            processAdaption.SetSID( *myOwningProcess, sid );
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   207
            processAdaption.SetSecurityZone( *myOwningProcess, sz);
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   208
            //
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   209
            r = KErrNone;
a03f92240627 Revision: 201003
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parents:
diff changeset
   210
            }
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   211
        else
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   212
            {
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   213
            r = KErrAccessDenied;
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   214
            }
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   215
        }
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   216
    //
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   217
    TRACE( Kern::Printf("DMemSpyDriverLogChanMisc::Impersonate() - MemSpy is now: 0x%08x", sid ));
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   218
    return r;
a03f92240627 Revision: 201003
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parents:
diff changeset
   219
    }
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   220
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   221
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   222
a03f92240627 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   223