996 lines
24 KiB
C++
996 lines
24 KiB
C++
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// Rights.cpp: implementation of the CUserPrivilegeRights class.
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//
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// Copyright (c)1997-1999 Microsoft Corporation
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//
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//////////////////////////////////////////////////////////////////////
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#include "precomp.h"
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#include "rights.h"
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#include "persistmgr.h"
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#include <io.h>
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#include "requestobject.h"
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/*
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Routine Description:
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Name:
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CUserPrivilegeRights::CUserPrivilegeRights
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Functionality:
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This is the constructor. Pass along the parameters to the base class
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Virtual:
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No (you know that, constructor won't be virtual!)
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Arguments:
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pKeyChain - Pointer to the ISceKeyChain COM interface which is prepared
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by the caller who constructs this instance.
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pNamespace - Pointer to WMI namespace of our provider (COM interface).
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Passed along by the caller. Must not be NULL.
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pCtx - Pointer to WMI context object (COM interface). Passed along
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by the caller. It's up to WMI whether this interface pointer is NULL or not.
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Return Value:
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None as any constructor
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Notes:
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if you create any local members, think about initialize them here
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*/
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CUserPrivilegeRights::CUserPrivilegeRights (
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IN ISceKeyChain * pKeyChain,
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IN IWbemServices * pNamespace,
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IN IWbemContext * pCtx
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)
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:
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CGenericClass(pKeyChain, pNamespace, pCtx)
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{
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}
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/*
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Routine Description:
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Name:
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CUserPrivilegeRights::~CUserPrivilegeRights
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Functionality:
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Destructor. Necessary as good C++ discipline since we have virtual functions.
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Virtual:
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Yes.
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Arguments:
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none as any destructor
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Return Value:
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None as any destructor
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Notes:
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if you create any local members, think about whether
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there is any need for a non-trivial destructor
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*/
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CUserPrivilegeRights::~CUserPrivilegeRights ()
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{
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}
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/*
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Routine Description:
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Name:
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CUserPrivilegeRights::CreateObject
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Functionality:
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Create WMI objects (Sce_UserPrivilegeRight). Depending on parameter atAction,
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this creation may mean:
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(a) Get a single instance (atAction == ACTIONTYPE_GET)
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(b) Get several instances satisfying some criteria (atAction == ACTIONTYPE_QUERY)
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(c) Delete an instance (atAction == ACTIONTYPE_DELETE)
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Virtual:
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Yes.
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Arguments:
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pHandler - COM interface pointer for notifying WMI for creation result.
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atAction - Get single instance ACTIONTYPE_GET
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Get several instances ACTIONTYPE_QUERY
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Delete a single instance ACTIONTYPE_DELETE
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Return Value:
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Success: it must return success code (use SUCCEEDED to test). It is
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not guaranteed to return WBEM_NO_ERROR. The returned objects are indicated to WMI,
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not directly passed back via parameters.
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Failure: Various errors may occurs. Except WBEM_E_NOT_FOUND, any such error should indicate
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the failure of getting the wanted instance. If WBEM_E_NOT_FOUND is returned in querying
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situations, this may not be an error depending on caller's intention.
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Notes:
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*/
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HRESULT
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CUserPrivilegeRights::CreateObject (
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IN IWbemObjectSink * pHandler,
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IN ACTIONTYPE atAction
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)
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{
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//
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// we know how to:
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// Get single instance ACTIONTYPE_GET
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// Delete a single instance ACTIONTYPE_DELETE
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// Get several instances ACTIONTYPE_QUERY
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//
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if ( ACTIONTYPE_GET != atAction &&
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ACTIONTYPE_DELETE != atAction &&
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ACTIONTYPE_QUERY != atAction )
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{
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return WBEM_E_NOT_SUPPORTED;
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}
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int idxStorePath=-1, idxRight=-1;
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//
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// We must have the pStorePath property because that is where
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// our instance is stored.
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// m_srpKeyChain->GetKeyPropertyValue WBEM_S_FALSE if the key is not recognized
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// So, we need to test against WBEM_S_FALSE if the property is mandatory
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//
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CComVariant varStorePath;
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HRESULT hr = m_srpKeyChain->GetKeyPropertyValue(pStorePath, &varStorePath);
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CComVariant varUserRight;
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if (SUCCEEDED(hr) && WBEM_S_FALSE != hr)
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{
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hr = m_srpKeyChain->GetKeyPropertyValue(pUserRight, &varUserRight);
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if (FAILED(hr))
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{
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return hr;
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}
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else if (hr == WBEM_S_FALSE && (ACTIONTYPE_QUERY != atAction) )
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{
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return WBEM_E_NOT_FOUND;
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}
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}
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if (SUCCEEDED(hr))
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{
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//
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// Prepare a store (for persistence) for this store path (file)
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//
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CSceStore SceStore;
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hr = SceStore.SetPersistPath(varStorePath.bstrVal);
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if ( SUCCEEDED(hr) ) {
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//
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// make sure the store (just a file) really exists. The raw path
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// may contain env variables, so we need the expanded path
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//
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DWORD dwAttrib = GetFileAttributes(SceStore.GetExpandedPath());
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if ( dwAttrib != -1 )
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{
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//
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// make sure our store is valid
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//
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if ( SceStore.GetStoreType() < SCE_INF_FORMAT ||
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SceStore.GetStoreType() > SCE_JET_ANALYSIS_REQUIRED )
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{
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hr = WBEM_E_INVALID_PARAMETER;
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}
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if ( SUCCEEDED(hr) )
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{
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if ( ACTIONTYPE_DELETE == atAction )
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{
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hr = DeleteInstance(pHandler, &SceStore, varUserRight.bstrVal);
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}
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else
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{
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//
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// get the key property count to determin how we should be construct the instance(s)
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//
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BOOL bPostFilter=TRUE;
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DWORD dwCount = 0;
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m_srpKeyChain->GetKeyPropertyCount(&dwCount);
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if ( varUserRight.vt == VT_EMPTY && dwCount == 1 )
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{
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//
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// something else is specified in the path
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// have filter on
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//
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bPostFilter = FALSE;
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}
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hr = ConstructInstance(
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pHandler,
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&SceStore,
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varStorePath.bstrVal,
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(varUserRight.vt == VT_BSTR) ? varUserRight.bstrVal : NULL,
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bPostFilter
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);
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}
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}
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}
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else
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{
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hr = WBEM_E_NOT_FOUND;
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}
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}
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}
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return hr;
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}
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/*
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Routine Description:
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Name:
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CUserPrivilegeRights::PutInst
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Functionality:
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Put an instance as instructed by WMI. Since this class implements Sce_UserPrivilegeRight,
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which is persistence oriented, this will cause the Sce_UserPrivilegeRight object's property
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information to be saved in our store.
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Virtual:
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Yes.
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Arguments:
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pInst - COM interface pointer to the WMI class (Sce_UserPrivilegeRight) object.
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pHandler - COM interface pointer for notifying WMI of any events.
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pCtx - COM interface pointer. This interface is just something we pass around.
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WMI may mandate it (not now) in the future. But we never construct
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such an interface and so, we just pass around for various WMI API's
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Return Value:
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Success: it must return success code (use SUCCEEDED to test). It is
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not guaranteed to return WBEM_NO_ERROR.
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Failure: Various errors may occurs. Any such error should indicate the failure of persisting
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the instance.
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Notes:
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Since GetProperty will return a success code (WBEM_S_RESET_TO_DEFAULT) when the
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requested property is not present, don't simply use SUCCEEDED or FAILED macros
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to test for the result of retrieving a property.
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*/
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HRESULT
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CUserPrivilegeRights::PutInst (
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IN IWbemClassObject * pInst,
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IN IWbemObjectSink * pHandler,
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IN IWbemContext * pCtx
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)
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{
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HRESULT hr = WBEM_E_INVALID_PARAMETER;
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CComBSTR bstrRight = NULL;
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PSCE_NAME_LIST pnlAdd = NULL;
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DWORD mode;
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CSceStore SceStore;
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//
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// CScePropertyMgr helps us to access WMI object's properties
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// create an instance and attach the WMI object to it.
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// This will always succeed.
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//
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CScePropertyMgr ScePropMgr;
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ScePropMgr.Attach(pInst);
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//
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// get user right name, can't be NULL
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// user right name should be validated
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//
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//
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// the use of the macro SCE_PROV_IfErrorGotoCleanup cause
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// a "goto CleanUp;" with hr set to the return value from
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// the function (macro parameter)
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//
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SCE_PROV_IfErrorGotoCleanup(ScePropMgr.GetProperty(pUserRight, &bstrRight));
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if ( hr == WBEM_S_RESET_TO_DEFAULT)
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{
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hr = WBEM_E_ILLEGAL_NULL;
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goto CleanUp;
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}
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//
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// validate the privilege right
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//
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SCE_PROV_IfErrorGotoCleanup(ValidatePrivilegeRight(bstrRight));
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//
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// get mode
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//
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SCE_PROV_IfErrorGotoCleanup(ScePropMgr.GetProperty(pMode, &mode));
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if ( hr == WBEM_S_RESET_TO_DEFAULT)
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{
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hr = WBEM_E_ILLEGAL_NULL;
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goto CleanUp;
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}
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//
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// get AddList
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//
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SCE_PROV_IfErrorGotoCleanup(ScePropMgr.GetProperty(pAddList, &pnlAdd));
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//
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// ignore RemoveList for now (since we don't support the mode)
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//
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//
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// Attach the WMI object instance to the store and let the store know that
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// it's store is given by the pStorePath property of the instance.
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//
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SceStore.SetPersistProperties(pInst, pStorePath);
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//
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// now save the info to file
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//
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hr = SaveSettingsToStore(&SceStore,
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bstrRight,
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mode,
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pnlAdd,
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NULL
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);
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CleanUp:
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if ( pnlAdd )
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{
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SceFreeMemory(pnlAdd, SCE_STRUCT_NAME_LIST);
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}
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return hr;
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}
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/*
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Routine Description:
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Name:
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CUserPrivilegeRights::ConstructInstance
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Functionality:
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This is private function to create an instance of Sce_UserPrivilegeRight.
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Virtual:
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No.
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Arguments:
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pHandler - COM interface pointer for notifying WMI of any events.
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pSceStore - Pointer to our store. It must have been appropriately set up.
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wszLogStorePath - store path, a key property of Sce_UserPrivilegeRight class.
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wszRightName - a corresponding key property of Sce_UserPrivilegeRight class.
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bPostFilter - Controls how WMI will be informed with pHandler->SetStatus.
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Return Value:
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Success: it must return success code (use SUCCEEDED to test). It is
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not guaranteed to return WBEM_NO_ERROR.
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Failure: Various errors may occurs. Any such error should indicate the creating the instance.
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Notes:
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*/
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HRESULT
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CUserPrivilegeRights::ConstructInstance (
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IN IWbemObjectSink * pHandler,
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IN CSceStore * pSceStore,
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IN LPCWSTR wszLogStorePath,
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IN LPCWSTR wszRightName OPTIONAL,
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IN BOOL bPostFilter
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)
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{
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//
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// ask SCE to read a gigantic structure out from the store. Only SCE
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// knows now to release the memory. Don't just delete it! Use our CSceStore
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// to do the releasing (FreeSecurityProfileInfo)
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//
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PSCE_PROFILE_INFO pInfo=NULL;
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HRESULT hr = pSceStore->GetSecurityProfileInfo(
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AREA_PRIVILEGES,
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&pInfo,
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NULL
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);
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//
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// nothing is read from the store
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//
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if ( pInfo == NULL )
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{
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if ( wszRightName )
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{
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hr = WBEM_E_NOT_FOUND;
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}
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else
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{
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hr = WBEM_S_NO_ERROR;
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}
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return hr;
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}
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//
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// we have to search for the user right name in the returned list
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//
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PSCE_PRIVILEGE_ASSIGNMENT pPrivileges = pInfo->OtherInfo.smp.pPrivilegeAssignedTo;
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if ( wszRightName )
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{
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while ( pPrivileges )
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{
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if ( pPrivileges->Name == NULL )
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{
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continue;
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}
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if ( _wcsicmp(pPrivileges->Name, wszRightName)== 0 )
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{
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break;
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}
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pPrivileges = pPrivileges->Next;
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}
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//
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// if the service information buffer is empty, treat it as "not found"
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//
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if ( pPrivileges == NULL )
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{
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hr = WBEM_E_NOT_FOUND;
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}
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}
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CComBSTR bstrLogOut;
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//
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// the use of the macro SCE_PROV_IfErrorGotoCleanup cause
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|
// a "goto CleanUp;" with hr set to the return value from
|
||
|
// the function (macro parameter)
|
||
|
//
|
||
|
|
||
|
if ( SUCCEEDED(hr) )
|
||
|
{
|
||
|
|
||
|
PSCE_PRIVILEGE_ASSIGNMENT pTmp = pPrivileges;
|
||
|
|
||
|
SCE_PROV_IfErrorGotoCleanup(MakeSingleBackSlashPath(wszLogStorePath, L'\\', &bstrLogOut));
|
||
|
|
||
|
while ( pTmp )
|
||
|
{
|
||
|
CComPtr<IWbemClassObject> srpObj;
|
||
|
SCE_PROV_IfErrorGotoCleanup(SpawnAnInstance(&srpObj));
|
||
|
|
||
|
//
|
||
|
// CScePropertyMgr helps us to access WMI object's properties
|
||
|
// create an instance and attach the WMI object to it.
|
||
|
// This will always succeed.
|
||
|
//
|
||
|
|
||
|
CScePropertyMgr ScePropMgr;
|
||
|
ScePropMgr.Attach(srpObj);
|
||
|
|
||
|
SCE_PROV_IfErrorGotoCleanup(ScePropMgr.PutProperty(pStorePath, bstrLogOut));
|
||
|
SCE_PROV_IfErrorGotoCleanup(ScePropMgr.PutProperty(pUserRight, pTmp->Name));
|
||
|
|
||
|
//
|
||
|
// hardcode the mode for now
|
||
|
//
|
||
|
|
||
|
DWORD mode = 1;
|
||
|
SCE_PROV_IfErrorGotoCleanup(ScePropMgr.PutProperty(pMode, mode));
|
||
|
|
||
|
if ( pPrivileges->AssignedTo )
|
||
|
{
|
||
|
SCE_PROV_IfErrorGotoCleanup(ScePropMgr.PutProperty(pAddList, pPrivileges->AssignedTo));
|
||
|
}
|
||
|
|
||
|
//
|
||
|
// ignore RemoveList for now
|
||
|
//
|
||
|
|
||
|
//
|
||
|
// do the necessary gestures to WMI.
|
||
|
// the use of WBEM_STATUS_REQUIREMENTS in SetStatus is not documented by WMI
|
||
|
// at this point. Consult WMI team for detail if you suspect problems with
|
||
|
// the use of WBEM_STATUS_REQUIREMENTS
|
||
|
//
|
||
|
|
||
|
if ( !bPostFilter ) {
|
||
|
pHandler->SetStatus(WBEM_STATUS_REQUIREMENTS, S_FALSE, NULL, NULL);
|
||
|
} else {
|
||
|
pHandler->SetStatus(WBEM_STATUS_REQUIREMENTS, S_OK, NULL, NULL);
|
||
|
}
|
||
|
|
||
|
//
|
||
|
// pass the new instance to WMI
|
||
|
//
|
||
|
|
||
|
hr = pHandler->Indicate(1, &srpObj);
|
||
|
|
||
|
if ( wszRightName )
|
||
|
{
|
||
|
// get the single instance
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
//
|
||
|
// go to the next item
|
||
|
//
|
||
|
|
||
|
pTmp = pTmp->Next;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
CleanUp:
|
||
|
|
||
|
pSceStore->FreeSecurityProfileInfo(pInfo);
|
||
|
|
||
|
return hr;
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
Routine Description:
|
||
|
|
||
|
Name:
|
||
|
|
||
|
CUserPrivilegeRights::DeleteInstance
|
||
|
|
||
|
Functionality:
|
||
|
|
||
|
remove an instance of Sce_UserPrivilegeRight from the specified store.
|
||
|
|
||
|
Virtual:
|
||
|
|
||
|
No.
|
||
|
|
||
|
Arguments:
|
||
|
|
||
|
pHandler - COM interface pointer for notifying WMI of any events.
|
||
|
|
||
|
pSceStore - Pointer to our store. It must have been appropriately set up.
|
||
|
|
||
|
wszRightName - property of the Sce_UserPrivilegeRight class.
|
||
|
|
||
|
Return Value:
|
||
|
|
||
|
See SaveSettingsToStore.
|
||
|
|
||
|
Notes:
|
||
|
|
||
|
*/
|
||
|
|
||
|
HRESULT CUserPrivilegeRights::DeleteInstance (
|
||
|
IN IWbemObjectSink * pHandler,
|
||
|
IN CSceStore * pSceStore,
|
||
|
IN LPCWSTR wszRightName
|
||
|
)
|
||
|
{
|
||
|
//
|
||
|
// SCE_NO_VALUE and NULL pointers indicate to SaveSettingsToStore that this is a delete
|
||
|
//
|
||
|
|
||
|
return SaveSettingsToStore(pSceStore, wszRightName, SCE_NO_VALUE, NULL, NULL);
|
||
|
}
|
||
|
|
||
|
|
||
|
/*
|
||
|
Routine Description:
|
||
|
|
||
|
Name:
|
||
|
|
||
|
CUserPrivilegeRights::SaveSettingsToStore
|
||
|
|
||
|
Functionality:
|
||
|
|
||
|
With all the properties of a Sce_UserPrivilegeRight, this function just saves
|
||
|
the instance properties to our store.
|
||
|
|
||
|
Virtual:
|
||
|
|
||
|
No.
|
||
|
|
||
|
Arguments:
|
||
|
|
||
|
pSceStore - the store.
|
||
|
|
||
|
wszGroupName - a corresponding key property of Sce_UserPrivilegeRight class.
|
||
|
|
||
|
mode - another corresponding property of the Sce_UserPrivilegeRight class.
|
||
|
|
||
|
pnlAdd - another corresponding property of the Sce_UserPrivilegeRight class.
|
||
|
|
||
|
pnlRemove - another corresponding property of the Sce_UserPrivilegeRight class.
|
||
|
|
||
|
Return Value:
|
||
|
|
||
|
Success: it must return success code (use SUCCEEDED to test). It is
|
||
|
not guaranteed to return WBEM_NO_ERROR.
|
||
|
|
||
|
Failure: Various errors may occurs. Any error indicates the failure to save the instance.
|
||
|
|
||
|
Notes:
|
||
|
*/
|
||
|
|
||
|
HRESULT CUserPrivilegeRights::SaveSettingsToStore (
|
||
|
IN CSceStore * pSceStore,
|
||
|
IN PCWSTR wszRightName,
|
||
|
IN DWORD mode,
|
||
|
IN PSCE_NAME_LIST pnlAdd,
|
||
|
IN PSCE_NAME_LIST pnlRemove
|
||
|
)
|
||
|
{
|
||
|
//
|
||
|
// ask SCE to read a gigantic structure out from the store. Only SCE
|
||
|
// knows now to release the memory. Don't just delete it! Use our CSceStore
|
||
|
// to do the releasing (FreeSecurityProfileInfo)
|
||
|
//
|
||
|
|
||
|
PSCE_PROFILE_INFO pInfo=NULL;
|
||
|
|
||
|
HRESULT hr = pSceStore->GetSecurityProfileInfo(
|
||
|
AREA_PRIVILEGES,
|
||
|
&pInfo,
|
||
|
NULL
|
||
|
);
|
||
|
if (FAILED(hr))
|
||
|
{
|
||
|
return hr;
|
||
|
}
|
||
|
|
||
|
//
|
||
|
// if it is INF template, then the following function will do the job as commented below
|
||
|
//
|
||
|
|
||
|
DWORD dwDump;
|
||
|
|
||
|
//
|
||
|
// For a new .inf file. Write an empty buffer to the file
|
||
|
// will creates the file with right header/signature/unicode format
|
||
|
// this is harmless for existing files.
|
||
|
// For database store, this is a no-op.
|
||
|
//
|
||
|
|
||
|
hr = pSceStore->WriteSecurityProfileInfo(AreaBogus, (PSCE_PROFILE_INFO)&dwDump, NULL, false);
|
||
|
|
||
|
if (FAILED(hr))
|
||
|
{
|
||
|
return hr;
|
||
|
}
|
||
|
|
||
|
//
|
||
|
// for INF format, we have to search for the servic name in the returned array
|
||
|
//
|
||
|
|
||
|
PSCE_PRIVILEGE_ASSIGNMENT pRight = pInfo->OtherInfo.smp.pPrivilegeAssignedTo;
|
||
|
PSCE_PRIVILEGE_ASSIGNMENT pParent = NULL;
|
||
|
|
||
|
DWORD i = 0;
|
||
|
|
||
|
while ( pRight )
|
||
|
{
|
||
|
if ( pRight->Name == NULL )
|
||
|
{
|
||
|
continue;
|
||
|
}
|
||
|
|
||
|
if ( _wcsicmp(pRight->Name, wszRightName)== 0 )
|
||
|
{
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
pParent = pRight;
|
||
|
pRight = pRight->Next;
|
||
|
}
|
||
|
|
||
|
if ( pRight )
|
||
|
{
|
||
|
//
|
||
|
// find it
|
||
|
//
|
||
|
|
||
|
if ( mode == SCE_NO_VALUE )
|
||
|
{
|
||
|
//
|
||
|
// delete it
|
||
|
//
|
||
|
|
||
|
if ( pParent )
|
||
|
{
|
||
|
pParent->Next = pRight->Next;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
pInfo->OtherInfo.smp.pPrivilegeAssignedTo = pRight->Next;
|
||
|
}
|
||
|
|
||
|
//
|
||
|
// free buffer
|
||
|
//
|
||
|
|
||
|
pRight->Next = NULL;
|
||
|
SceFreeMemory(pRight, SCE_STRUCT_PRIVILEGE);
|
||
|
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
//
|
||
|
// modify it
|
||
|
//
|
||
|
|
||
|
if ( pRight->AssignedTo )
|
||
|
{
|
||
|
SceFreeMemory(pRight->AssignedTo, SCE_STRUCT_NAME_LIST);
|
||
|
}
|
||
|
|
||
|
pRight->AssignedTo = pnlAdd;
|
||
|
}
|
||
|
|
||
|
//
|
||
|
// write the section header
|
||
|
//
|
||
|
|
||
|
if ( SUCCEEDED(hr) )
|
||
|
{
|
||
|
hr = pSceStore->WriteSecurityProfileInfo(AREA_PRIVILEGES, pInfo, NULL, false);
|
||
|
}
|
||
|
|
||
|
if ( mode != SCE_NO_VALUE )
|
||
|
{
|
||
|
//
|
||
|
// reset the buffer pointer
|
||
|
//
|
||
|
|
||
|
pRight->AssignedTo = NULL;
|
||
|
}
|
||
|
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
//
|
||
|
// not found
|
||
|
//
|
||
|
|
||
|
if ( mode == SCE_NO_VALUE )
|
||
|
{
|
||
|
//
|
||
|
// try to delete non exist object
|
||
|
//
|
||
|
|
||
|
hr = WBEM_E_NOT_FOUND;
|
||
|
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
//
|
||
|
// add this one in
|
||
|
//
|
||
|
|
||
|
SCE_PRIVILEGE_ASSIGNMENT addRight;
|
||
|
|
||
|
addRight.Name = (PWSTR)wszRightName;
|
||
|
addRight.Value = 0;
|
||
|
addRight.AssignedTo = pnlAdd;
|
||
|
addRight.Status = 0;
|
||
|
addRight.Next = NULL;
|
||
|
|
||
|
//
|
||
|
// set the temp buffer pointer to pInfo to set to the store
|
||
|
//
|
||
|
|
||
|
pRight = pInfo->OtherInfo.smp.pPrivilegeAssignedTo;
|
||
|
pInfo->OtherInfo.smp.pPrivilegeAssignedTo = &addRight;
|
||
|
|
||
|
//
|
||
|
// append this item to the section
|
||
|
//
|
||
|
|
||
|
hr = pSceStore->WriteSecurityProfileInfo(
|
||
|
AREA_PRIVILEGES,
|
||
|
pInfo,
|
||
|
NULL,
|
||
|
true // appending
|
||
|
);
|
||
|
//
|
||
|
// reset the buffer pointer
|
||
|
//
|
||
|
|
||
|
pInfo->OtherInfo.smp.pPrivilegeAssignedTo = pRight;
|
||
|
|
||
|
}
|
||
|
}
|
||
|
|
||
|
//
|
||
|
// Free the profile buffer
|
||
|
//
|
||
|
|
||
|
pSceStore->FreeSecurityProfileInfo(pInfo);
|
||
|
|
||
|
return hr;
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
Routine Description:
|
||
|
|
||
|
Name:
|
||
|
|
||
|
CUserPrivilegeRights::ValidatePrivilegeRight
|
||
|
|
||
|
Functionality:
|
||
|
|
||
|
Private helper to verify that the given right is valid. Will query all
|
||
|
supported user rights (Sce_SupportedUserRights) to see if this is one of them.
|
||
|
|
||
|
Virtual:
|
||
|
|
||
|
No.
|
||
|
|
||
|
Arguments:
|
||
|
|
||
|
bstrRight - a corresponding key property of Sce_UserPrivilegeRight class.
|
||
|
|
||
|
Return Value:
|
||
|
|
||
|
Success: it must return success code (use SUCCEEDED to test). It is
|
||
|
not guaranteed to return WBEM_NO_ERROR.
|
||
|
|
||
|
Failure: Various errors may occurs. Any error indicates the failure to save the instance.
|
||
|
|
||
|
Notes:
|
||
|
*/
|
||
|
|
||
|
HRESULT CUserPrivilegeRights::ValidatePrivilegeRight (
|
||
|
IN BSTR bstrRight
|
||
|
)
|
||
|
{
|
||
|
|
||
|
if ( bstrRight == NULL )
|
||
|
{
|
||
|
return WBEM_E_INVALID_PARAMETER;
|
||
|
}
|
||
|
|
||
|
DWORD Len = SysStringLen(bstrRight);
|
||
|
|
||
|
//
|
||
|
// memory allocated for this BSTR strQueryCategories will be automatically released by CComBSTR
|
||
|
//
|
||
|
|
||
|
//
|
||
|
// prepare the query
|
||
|
//
|
||
|
|
||
|
LPCWSTR pQuery = L"SELECT * FROM Sce_SupportedUserRights WHERE RightName=\"";
|
||
|
|
||
|
//
|
||
|
// 1 for closing quote and 1 for 0 terminator
|
||
|
//
|
||
|
|
||
|
CComBSTR strQueryCategories;
|
||
|
strQueryCategories.m_str = ::SysAllocStringLen(NULL, Len + wcslen(pQuery) + 2);
|
||
|
if ( strQueryCategories.m_str == NULL )
|
||
|
{
|
||
|
return WBEM_E_OUT_OF_MEMORY;
|
||
|
}
|
||
|
|
||
|
//
|
||
|
// this won't overrun. See allocation size above
|
||
|
//
|
||
|
|
||
|
wcscpy(strQueryCategories.m_str, pQuery);
|
||
|
wcscat(strQueryCategories.m_str, bstrRight);
|
||
|
wcscat(strQueryCategories.m_str, L"\"");
|
||
|
|
||
|
//
|
||
|
// execute the query
|
||
|
//
|
||
|
|
||
|
CComPtr<IEnumWbemClassObject> srpEnum;
|
||
|
CComPtr<IWbemClassObject> srpObj;
|
||
|
ULONG n = 0;
|
||
|
|
||
|
HRESULT hr = m_srpNamespace->ExecQuery(L"WQL",
|
||
|
strQueryCategories,
|
||
|
WBEM_FLAG_RETURN_IMMEDIATELY | WBEM_FLAG_FORWARD_ONLY,
|
||
|
NULL,
|
||
|
&srpEnum
|
||
|
);
|
||
|
|
||
|
if (SUCCEEDED(hr))
|
||
|
{
|
||
|
//
|
||
|
// should get one and only one instance
|
||
|
//
|
||
|
|
||
|
hr = srpEnum->Next(WBEM_INFINITE, 1, &srpObj, &n);
|
||
|
if ( hr == WBEM_S_FALSE )
|
||
|
{
|
||
|
hr = WBEM_E_INVALID_PARAMETER;
|
||
|
}
|
||
|
|
||
|
if ( SUCCEEDED(hr) )
|
||
|
{
|
||
|
if (n > 0)
|
||
|
{
|
||
|
//
|
||
|
// find the instance
|
||
|
//
|
||
|
|
||
|
hr = WBEM_S_NO_ERROR;
|
||
|
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
hr = WBEM_E_INVALID_PARAMETER;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return hr;
|
||
|
}
|
||
|
|