javacommons/security/legacysupport/midp2securitypolicyv2/plugins/securitypolicyV2/src/SecurityPolicy.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 27 Apr 2010 16:30:29 +0300
branchRCL_3
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permissions -rw-r--r--
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/*
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* Copyright (c) 2003-2004 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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/**
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 *
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 * @file SecurityPolicy.cpp
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 *
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 * @internal
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 *
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 */
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#include <f32file.h>
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#include <centralrepository.h>
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#include "FunctionGroup.h"
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#include "ProtectionDomain.h"
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#include "XPFParser.h"
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#include "SecurityPolicy.h"
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/**
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 *
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 * @internal
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 *
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 * A concrete implementation of the MSecurityPolicyV2 'interface'
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 *
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 * @see MSecurityPolicyV2
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 *
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 */
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namespace MIDP
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{
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CSecurityPolicy* CSecurityPolicy::NewL()
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{
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    CSecurityPolicy* sp = new(ELeave) CSecurityPolicy;
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    CleanupStack::PushL(sp);
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    sp->ConstructL();
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    CleanupStack::Pop(sp);
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    return sp;
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}
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CSecurityPolicy::CSecurityPolicy()
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{
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}
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// Java Security Policy Central Repository UID
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static const TUid KCRUidJavaSecurityPolicy = { 0x2001B289 };
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// IDs for security folder and file keys
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static const TUint32 KPolicyFolder = 0x02;
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static const TUint32 KPolicyFile = 0x01;
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_LIT(KPolicyFileSuffix, ".xpf");
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void CSecurityPolicy::ConstructL()
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{
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    // opening Central Repository and reading keys for security policy folder and file
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    CRepository* repository = CRepository::NewLC(KCRUidJavaSecurityPolicy);
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    HBufC* folderBuf = HBufC::NewLC(NCentralRepositoryConstants::KMaxUnicodeStringLength);
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    TPtr secPolicyFolder(folderBuf->Des());
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    HBufC* fileBuf = HBufC::NewLC(NCentralRepositoryConstants::KMaxUnicodeStringLength);
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    TPtr secPolicyFile(fileBuf->Des());
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    // Load the security policy file path and name
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    User::LeaveIfError(repository->Get(KPolicyFolder, secPolicyFolder));
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    User::LeaveIfError(repository->Get(KPolicyFile, secPolicyFile));
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    RFs fs;
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    User::LeaveIfError(fs.Connect());
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    CleanupClosePushL(fs);
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    // constructing path to security policy file
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    HBufC* policyFileName    = HBufC::NewLC(secPolicyFolder.Length() + secPolicyFile.Length() + KPolicyFileSuffix().Length());
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    TPtr   policyFileNamePtr = policyFileName->Des();
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    policyFileNamePtr += secPolicyFolder;
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    policyFileNamePtr += secPolicyFile;
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    policyFileNamePtr += KPolicyFileSuffix();
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    // opening the .xpf file
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    RFile policyFile;
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    User::LeaveIfError(policyFile.Open(fs, *policyFileName, EFileShareReadersOnly));
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    // parsing the .xpf file and constructing SecurityPolicy object
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    CXPFParser* xpfp = MIDP::CXPFParser::NewLC(policyFile, *this);
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    xpfp->ParseL();
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    // cleanup
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    CleanupStack::PopAndDestroy(xpfp);
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    CleanupStack::PopAndDestroy(policyFileName);
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    CleanupStack::PopAndDestroy();  // fs
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    CleanupStack::PopAndDestroy(fileBuf);
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    CleanupStack::PopAndDestroy(folderBuf);
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    CleanupStack::PopAndDestroy(repository);
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}
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CSecurityPolicy::~CSecurityPolicy()
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{
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    iProtectionDomains.ResetAndDestroy();
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    iProtectionDomains.Close();
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    delete iUntrustedProtectionDomain;
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    iFunctionGroups.ResetAndDestroy();
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    iFunctionGroups.Close();
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    iPermissions.ResetAndDestroy();
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    iPermissions.Close();
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}
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// MVersionedInterface implementation
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TUint32 CSecurityPolicy::InterfaceVersion(void) const
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{
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    return 0x0200;
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}
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// End of MVersionedInterface implementation
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// MSecurityPolicyV2 implementation
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/**
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 *
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 * @internal
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 *
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 * Returns the permissions associted with the untrusted protection domain
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 * defined by this security policy.
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 *
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 * @return an array of pointers to MPermission.
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 *
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 * Leaves with KErrNotFound if an untrusted protection domain is not defined.
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 *
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 */
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const RPointerArray<MPermission>& CSecurityPolicy::UntrustedPermissionsL(void)
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{
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    return UntrustedProtectionDomainL().Permissions();
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}
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/**
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 *
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 * @internal
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 *
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 * Returns the permissions associated with the named protection domain defined
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 * by this security policy.
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 *
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 * @return an array of pointers to MPermission.
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 *
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 * Leaves with KErrNotFound if a protection domain with the given name is not
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 * defined.
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 *
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 */
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const RPointerArray<MPermission>& CSecurityPolicy::PermissionsL(const TDesC& aName)
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{
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    return ProtectionDomainL(aName).Permissions();
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}
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/**
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 *
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 * @internal
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 *
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 * Returns the protection domain with the given name defined by this security
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 * policy.
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 *
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 * @return a reference to the named protection domain.
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 *
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 * Leaves with KErrNotFound if a protection domain with the given name has
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 * not been defined.
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 *
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 */
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const MExtendedProtectionDomain& CSecurityPolicy::ProtectionDomainL(
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    const TDesC& aName) const
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{
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    CProtectionDomain* pd = FindProtectionDomain(aName);
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    if (pd == NULL)
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    {
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        User::Leave(KErrNotFound);
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    }
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    return *pd;
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}
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/**
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 *
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 * @internal
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 *
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 * Returns the untrusted protection domain specified by this security policy,
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 *
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 * @return a reference to the untrusted protection domain.
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 *
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 * Leaves with KErrNotFound if an untrusted protection domain is not defined.
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 *
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 */
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const MExtendedProtectionDomain& CSecurityPolicy::UntrustedProtectionDomainL(void) const
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{
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    if (iUntrustedProtectionDomain == NULL)
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    {
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        User::Leave(KErrNotFound);
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    }
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    return *iUntrustedProtectionDomain;
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}
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// End of MSecurityPolicyV2 implementation
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/**
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 *
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 * @internal
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 *
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 * Adds the named protection domain to this security policy.
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 *
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 * @return a pointer to the added protection domain.
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 *
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 * Leaves with KErrAlreadyExists if a protectiuon domain with this name has
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 * already been added.
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 *
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 */
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CProtectionDomain* CSecurityPolicy::AddProtectionDomainL(const TDesC& aName)
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{
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    if (FindProtectionDomain(aName) != NULL)
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    {
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        User::Leave(KErrAlreadyExists);
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    }
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    CProtectionDomain* pd = CProtectionDomain::NewLC(*this, ++iLastId, aName);
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    User::LeaveIfError(iProtectionDomains.Append(pd));
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    CleanupStack::Pop(pd);
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    return pd;
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}
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const TInt KUntrustedId = -1;
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_LIT(KUntrustedName, "");
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/**
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 *
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 * @internal
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 *
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 * Adds the untrusted protection domain to this security policy.
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 *
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 * @return a pointer to the added protection domain.
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 *
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 * Leaves with KErrAlreadyExists if the untrusted protection domain has
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 * already been added.
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 *
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 */
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CProtectionDomain* CSecurityPolicy::AddUntrustedProtectionDomainL(void)
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{
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    if (iUntrustedProtectionDomain != NULL)
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    {
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        User::Leave(KErrAlreadyExists);
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    }
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    iUntrustedProtectionDomain = CProtectionDomain::NewLC(*this, KUntrustedId, KUntrustedName);
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    CleanupStack::Pop(iUntrustedProtectionDomain);
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    return iUntrustedProtectionDomain;
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}
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/**
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 *
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 * @internal
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 *
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 * Adds the named function group to this security policy
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 *
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 * @param aName the name of the function group to add.
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 *
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 * @return a pointer to the added function group.
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 *
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 * Leaves with KErrAleadyExists if a function group with the given name
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 * has already been added
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 *
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 */
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CFunctionGroup* CSecurityPolicy::AddFunctionGroupL(const TDesC& aName)
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{
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    if (FindFunctionGroup(aName) != NULL)
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    {
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        User::Leave(KErrAlreadyExists);
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    }
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    CFunctionGroup* fg = CFunctionGroup::NewLC(aName);
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    User::LeaveIfError(iFunctionGroups.Append(fg));
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    CleanupStack::Pop(fg);
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    return fg;
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}
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/**
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 *
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 * @internal
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 *
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 * Adds the permission to the function group.
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 *
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 * @param aFunctionGroup    the function group to add the permission to,
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 *
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 * @param aPermission       the name of the permission to add.
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 *
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 * Leaves with KErrAlreadyExists if the named permission has already been
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 * added to a function group.
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 *
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 */
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void CSecurityPolicy::AddPermissionL(CFunctionGroup& aFunctionGroup, const TDesC& aPermission)
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{
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    TInt permissionCount = iPermissions.Count();
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    for (TInt i = 0; i < permissionCount; i++)
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    {
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        if ((*iPermissions[i]) == aPermission)
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        {
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            User::Leave(KErrAlreadyExists);
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        }
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    }
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   337
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    HBufC* permission = aPermission.AllocLC();
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    User::LeaveIfError(iPermissions.Append(permission));
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   341
    CleanupStack::Pop(permission);
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   342
    aFunctionGroup.AddPermissionL(permission);
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}
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   344
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   345
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#define CONST_SAFE_RETURN(t, v) (v)
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   347
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   348
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   349
/**
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 *
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 * @internal
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   352
 *
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   353
 * Finds the named function group.
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   354
 *
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   355
 * @param aName the name of the function group to find.
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   356
 *
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   357
 * @return a pointer to the function group, or NULL if not found.
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   358
 *
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   359
 */
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   360
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   361
CFunctionGroup* CSecurityPolicy::FindFunctionGroup(const TDesC& aName) const
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   362
{
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   363
    TInt count = iFunctionGroups.Count();
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   364
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   365
    for (TInt i = 0; i < count; i++)
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   366
    {
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   367
        if (iFunctionGroups[i]->Name() == aName)
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   368
        {
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   369
            return CONST_SAFE_RETURN(CFunctionGroup*, iFunctionGroups[i]);
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   370
        }
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   371
    }
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   372
    return NULL;
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   373
}
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   374
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   375
/**
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   376
 *
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   377
 * @internal
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   378
 *
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   379
 * Finds the named protection domain.
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   380
 *
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   381
 * @param aName the name of the protectiomn domain to find.
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   382
 *
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   383
 * @return a pointer to the protection domain, or NULL if not found.
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   384
 *
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   385
 */
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diff changeset
   386
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   387
CProtectionDomain* CSecurityPolicy::FindProtectionDomain(const TDesC& aName) const
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   388
{
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   389
    TInt count = iProtectionDomains.Count();
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diff changeset
   390
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   391
    for (TInt i = 0; i < count; i++)
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diff changeset
   392
    {
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   393
        if (iProtectionDomains[i]->Name() == aName)
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diff changeset
   394
        {
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   395
            return CONST_SAFE_RETURN(CProtectionDomain*, iProtectionDomains[i]);
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   396
        }
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   397
    }
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   398
    return NULL;
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   399
}
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diff changeset
   400
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diff changeset
   401
} // end of namespace MIDP