datacommsserver/esockserver/ssock/ss_secpol.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 31 Mar 2010 23:27:09 +0300
branchRCL_3
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Revision: 201013 Kit: 201013
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// Copyright (c) 2004-2009 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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// Security Policy definitions for Platform security.
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//
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//
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/**
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 @file SS_SECPOL.CPP
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 @internalComponent
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*/
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#include <e32base.h>
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#include <ss_std.h>
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#ifdef SYMBIAN_ENABLE_SPLIT_HEADERS
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#include <es_sock_partner.h>
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#include <es_sock_internal.h>
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#endif
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#include <comms-infras/sockmes.h>
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#include <comms-infras/es_connectionservermessages.h>
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#include "ss_secpol.h"
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namespace ESock
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{
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// NOTE: why does the following generate an error in ARMv5 indicating that esocksvr.dll
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// has initialised data ?
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//		_LIT_VENDOR_ID(KSymbianVID,0x70000001);
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//
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/** The Symbian Vendor ID. */
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const TUint KSymbianVID = 0x70000001;
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/** Socket Server Security Policy Definitions */
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const TUint SocketServerRangeCount = 5;
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//
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/** Definition of IPC ranges that each cover the same policy */
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const TInt SocketServerRanges[SocketServerRangeCount] = 
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	{
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	ESSInstallExtension,	// policyNetworkControl
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	ECNControl,				// policyCustom
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	ESoCreate,				// policyDeferred
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//- To the system "deferred" and "pass" are identical, so no separate range to check
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//-	ESSNumProtocols,		// policyPass
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	ESSDbgMarkHeap,			// policyVIDandNetworkControl
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	ESSInvalidFunction		// fail (to KMaxTInt) 
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	};
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/** Index numbers into SocketServerElements[] */	
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const TInt policyNetworkControl = 0;
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const TInt policyPass = 1;
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const TInt policyDeferred = policyPass;
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const TInt policyVIDandNetworkControl = 2;
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const TInt policyCustom = CPolicyServer::ECustomCheck;
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/** Mapping of IPCs to policy elements */
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const TUint8 SocketServerElementsIndex[SocketServerRangeCount] = 
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	{
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	policyNetworkControl,		/** ESSInstallExtension */
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	policyCustom,				/** ECNControl */
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	policyDeferred,				/** ESoCreate */
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	policyVIDandNetworkControl,	/** ESSDbgMarkHeap */
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 	CPolicyServer::ENotSupported/** ESSInvalidFunction to KMaxTInt */
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	};
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/** Individual policy elements */	
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const CPolicyServer::TPolicyElement SocketServerElements[] = 
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	{
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	{ _INIT_SECURITY_POLICY_C1(ECapabilityNetworkControl), CPolicyServer::EFailClient },
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	{ _INIT_SECURITY_POLICY_PASS },
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	{ _INIT_SECURITY_POLICY_V1(KSymbianVID,ECapabilityNetworkControl), CPolicyServer::EFailClient }
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	};
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/** Main policy */
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const CPolicyServer::TPolicy SocketServerPolicy =
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	{
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	CPolicyServer::EAlwaysPass, 	/** Specifies all connect attempts should pass */
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	SocketServerRangeCount,					
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	SocketServerRanges,
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	SocketServerElementsIndex,
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	SocketServerElements
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	};
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/** Connection Server Security Policy Definitions */
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const TUint ConnectionServerRangeCount = 8;
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/** Definition of IPC ranges that each cover the same policy */
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const TInt ConnectionServerRanges[ConnectionServerRangeCount] = 
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	{
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	ECMCreate,
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	ECMAttachToTierManager + 1,
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	ECMAccessPointStatusQuery_DoThenGetResultOrSize,
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	ECMAccessPointStatusQuery_Cancel + 1,
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	ECMAccessPointNotification_SetupThenAwaitThenGetResultOrSize,
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	ECMAccessPointNotification_Cancel + 1,
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	ECMApiExtBindIface,
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	ECMApiExtIfaceClose + 1
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	};
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/** Index numbers into ConnectionServerElements[] */	
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const TInt csPolicyNetworkServices = 0;
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//const TInt csPolicyVIDandNetworkServices = 1;
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/** Mapping of IPCs to policy elements */
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const TUint8 ConnectionServerElementsIndex[ConnectionServerRangeCount] = 
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	{
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	csPolicyNetworkServices,	/** ECMCreate */
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								/** ECMClose */
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								/** ECMAttachToTierManager */
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	CPolicyServer::ENotSupported,   /**  gap */
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	csPolicyNetworkServices,	/** ECMAccessPointStatusQuery_DoThenGetResultOrSize */
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								/** ECMAccessPointStatusQuery_GetResult	*/
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								/** ECMAccessPointStatusQuery_Cancel */
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	CPolicyServer::ENotSupported,   /**  gap */
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	csPolicyNetworkServices,	/** ECMAccessPointNotification_SetupThenAwaitThenGetResultOrSize */
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								/** ECMAccessPointNotification_AwaitThenGetResultOrSize */
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								/** ECMAccessPointNotification_GetResult */
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								/** ECMAccessPointNotification_Cancel */
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	CPolicyServer::ENotSupported ,  /** gap */
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	csPolicyNetworkServices,	/** ECMApiExtBindIface */
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								/** ECMApiExtBindSendReceive */
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	CPolicyServer::ENotSupported   /** _last_ + 1 to KMaxTInt */
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	};
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/** Individual policy elements */	
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const CPolicyServer::TPolicyElement ConnectionServerElements[] = 
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	{
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	{ _INIT_SECURITY_POLICY_C1(ECapabilityNetworkServices), CPolicyServer::EFailClient },
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//	{ _INIT_SECURITY_POLICY_V1(KSymbianVID,ECapabilityNetworkServices), CPolicyServer::EFailClient }
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	};
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/** Main policy */
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const CPolicyServer::TPolicy ConnectionServerPolicy =
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	{
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	CPolicyServer::EAlwaysPass, 	/** Specifies all connect attempts should pass */
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	ConnectionServerRangeCount,					
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	ConnectionServerRanges,
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	ConnectionServerElementsIndex,
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	ConnectionServerElements
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	};
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}
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CPolicyServer::TCustomResult
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CSocketServer::CustomSecurityCheckL(const RMessage2& aMsg, TInt& /*aAction*/, TSecurityInfo& /*aMissing*/)
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/**
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Implement custom security checking for IPCs marked with TSpecialCase::ECustomCheck
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Note that this only polices certain RConnection::Control(KCOLConnection) options that
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are implemented within ESOCK.  NIFMAN will police the remainder of the options.
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*/
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	{
19
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	// ECNControl is all we are expecting
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	if(aMsg.Function() != ECNControl)
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		{
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		return EFail;
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		}
0
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   TInt optionLevel = aMsg.Int0();
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	if (optionLevel == KCOLConnection)
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		{
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      TInt optionName = aMsg.Int1();
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		switch(optionName)
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			{
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			case KCoEnumerateConnectionClients:
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			case KCoGetConnectionClientInfo:
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			case KCoEnumerateConnectionSockets:
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			case KCoGetConnectionSocketInfo:
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				{
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				return (ESock::SocketServerElements[ESock::policyNetworkControl].iPolicy.CheckPolicy(aMsg)) ? EPass : EFail;
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				}
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			default:
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				return EPass;
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			}
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		}
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	return EPass;
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	}
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