sl@0: // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // CPolicySpace class
sl@0: // 
sl@0: //
sl@0: 
sl@0: #include <s32file.h>
sl@0: #include "D32Strings.h"
sl@0: #include "D32Map.h"
sl@0: #include "SC_Policy.h"
sl@0: #include "SC_StrmIn.h"
sl@0: #include "SC_PassAllPolicy.h"
sl@0: #include "SC_DomainLoader.h"
sl@0: #include "SC_PolicySpace.h"
sl@0: 
sl@0: namespace DBSC
sl@0: {
sl@0: 
sl@0: /**
sl@0: */
sl@0: inline CPolicySpace::CPolicySpace() :
sl@0: 	iPDCollection(TLinearOrder< TPair<TInt, CPolicyDomain*> > (&Compare<TInt, CPolicyDomain*>))
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Standard phase-one CPolicySpace factory method
sl@0: @param aFs A reference to a file server session object
sl@0: @param aPrivatePath A reference to the DBMS server private directory.
sl@0: @return A pointer to just created CPolicySpace instance.
sl@0: @leave System-wide error codes, including KErrNoMemory
sl@0: */
sl@0: CPolicySpace* CPolicySpace::NewL(RFs& aFs, const TDesC& aPrivatePath)
sl@0: 	{
sl@0: 	CPolicySpace* self = new (ELeave) CPolicySpace;
sl@0: 	CleanupReleasePushL(*self);
sl@0: 	self->ConstructL(aFs, aPrivatePath);
sl@0: 	CleanupStack::Pop(self);
sl@0: 	return self;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Standard phase-two CPolicySpace construction method
sl@0: @param aFs A reference to a file server session object
sl@0: @param aPrivatePath A reference to the DBMS server private directory.
sl@0: @leave System-wide error codes, including KErrNoMemory
sl@0: */
sl@0: void CPolicySpace::ConstructL(RFs& aFs, const TDesC& aPrivatePath)
sl@0: 	{
sl@0: 	iPassAllDbPolicy = new (ELeave) CPassAllPolicy(EPOTDatabase);
sl@0: 	iPassAllTblPolicy = new (ELeave) CPassAllPolicy(EPOTTable);
sl@0: 	TBuf<KMaxPath>* policyDir = new (ELeave) TFileName;
sl@0: 	CleanupStack::PushL(policyDir);
sl@0: 	policyDir->Copy(aPrivatePath);
sl@0: 	policyDir->Append(KSecurityPolicyDir);
sl@0: 	TRAPD(err, LoadPolicyDomainsL(aFs, *policyDir));
sl@0: 	if(err != KErrNone && err != KErrNotFound) //it's not an error, if there are no policy files
sl@0: 		{
sl@0: 		__LEAVE(err);
sl@0: 		}
sl@0: 	CleanupStack::PopAndDestroy(policyDir);
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: The method creates a policy domain object for each binary policy file found in the system.
sl@0: The created objects will be added to iPDCollection collection of policy domain objects.
sl@0: @param aFs A reference to a file server session object
sl@0: @param aPrivatePath A reference to the DBMS server private directory.
sl@0: @leave System-wide error codes, including KErrNoMemory
sl@0: */
sl@0: void CPolicySpace::LoadPolicyDomainsL(RFs& aFs, const TDesC& aPolicyDir)
sl@0: 	{
sl@0: 	CPolicyDomainLoader* loader = CPolicyDomainLoader::NewLC(aFs, aPolicyDir, iPDCollection);
sl@0: 	loader->RunL();
sl@0: 	CleanupStack::PopAndDestroy(loader);
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: The method returns the related with aDomainUid parameter CPolicyDomain object.
sl@0: @param aDomainUid Domain UID
sl@0: @return A pointer to the related with aDomainUid parameter CPolicyDomain object.
sl@0: */
sl@0: CPolicyDomain* CPolicySpace::PolicyDomain(TUid aDomainUid) const
sl@0: 	{
sl@0: 	__ASSERT(aDomainUid != KNullUid);
sl@0: 	CPolicyDomain* domain = NULL;
sl@0: 	if(iPDCollection.Find(aDomainUid.iUid, domain) == KErrNone)
sl@0: 		{
sl@0: 		__ASSERT(domain);
sl@0: 		__ASSERT(domain->Uid() == aDomainUid);
sl@0: 		}
sl@0: 	return domain;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: */
sl@0: CPolicySpace::~CPolicySpace()
sl@0: 	{
sl@0: 	TMapIterator<TInt, CPolicyDomain*> it(iPDCollection);
sl@0: 	TPair<TInt, CPolicyDomain*> pair;
sl@0: 	while(it.Next(pair))
sl@0: 		{
sl@0: 		delete pair.iData;
sl@0: 		}
sl@0: 	iPDCollection.Close();
sl@0: 	delete iPassAllTblPolicy;
sl@0: 	delete iPassAllDbPolicy;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Implements MPolicySpace::Release().
sl@0: Use this method when want to destroy particular CPolicySpace object.
sl@0: */
sl@0: void CPolicySpace::Release()
sl@0: 	{
sl@0: 	delete this;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Implements MPolicySpace::DbPolicyL().
sl@0: @param aDbPolicyRequest Request params: request type (secure/non-secure) and domain UID
sl@0: @return A const pointer to the related with the request UID policy object.
sl@0: */
sl@0: const MPolicy* CPolicySpace::DbPolicyL(const TDbPolicyRequest& aDbPolicyRequest) const
sl@0: 	{
sl@0: 	const MPolicy* policy = NULL;
sl@0: 	if(aDbPolicyRequest.iAccessType == EATNonSecure)
sl@0: 		{
sl@0: 		policy = iPassAllDbPolicy;
sl@0: 		}
sl@0: 	else//Secure shared database access
sl@0: 		{
sl@0: 		__ASSERT(aDbPolicyRequest.iUid != KNullUid);
sl@0: 		CPolicyDomain* domain = PolicyDomain(aDbPolicyRequest.iUid);
sl@0: 		if(domain)
sl@0: 			{
sl@0: 			policy = domain->DbPolicy();
sl@0: 			}
sl@0: 		}
sl@0: 	if(aDbPolicyRequest.iAccessType == EATSecure && !policy)
sl@0: 		{//there is no security policy associated with the supplied uid.
sl@0: 		__LEAVE(KErrArgument);
sl@0: 		}
sl@0: 	__ASSERT(policy);
sl@0: 	return policy;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Implements MPolicySpace::TblPolicyL().
sl@0: @param aDbPolicyRequest Request params: request type (secure/non-secure) and domain UID
sl@0: @param aTblName Database table name
sl@0: @return A const pointer to the related with the request table policy object.
sl@0: */
sl@0: const MPolicy* CPolicySpace::TblPolicyL(const TDbPolicyRequest& aDbPolicyRequest, 
sl@0: 										const TDesC& aTblName) const
sl@0: 	{
sl@0: 	const MPolicy* policy = NULL;
sl@0: 	if(aDbPolicyRequest.iAccessType == EATNonSecure)
sl@0: 		{
sl@0: 		policy = iPassAllTblPolicy;
sl@0: 		}
sl@0: 	else//Secure shared database access
sl@0: 		{
sl@0: 		CPolicyDomain* domain = PolicyDomain(aDbPolicyRequest.iUid);
sl@0: 		if(domain)
sl@0: 			{
sl@0: 			policy = domain->TblPolicy(aTblName);
sl@0: 			if(!policy)
sl@0: 				{
sl@0: 				policy = domain->DbPolicy();
sl@0: 				}
sl@0: 			}
sl@0: 		}
sl@0: 	if(aDbPolicyRequest.iAccessType == EATSecure && !policy)
sl@0: 		{//there is no security policy associated with the supplied uid.
sl@0: 		__LEAVE(KErrArgument);
sl@0: 		}
sl@0: 	__ASSERT(policy);
sl@0: 	return policy;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: Implements MPolicySpace::BackupSIDL().
sl@0: Returns backup&restore SID for the databases, the access to which is controlled by the
sl@0: security policy, identified by aDbUid parameter.
sl@0: @param aDbUid Domain UID
sl@0: @return Backup&restore SID for the supplied domain UID
sl@0: @leave KErrArgument if there is no security policy domain for the supplied UID.
sl@0: */
sl@0: TSecureId CPolicySpace::BackupSIDL(TUid aDbUid) const
sl@0: 	{
sl@0: 	CPolicyDomain* domain = PolicyDomain(aDbUid);
sl@0: 	if(!domain)
sl@0: 		{
sl@0: 		__LEAVE(KErrArgument);
sl@0: 		}
sl@0: 	return domain->BackupSID();
sl@0: 	}
sl@0: 	
sl@0: } //end of - namespace DBSC