Source code of Windows XP (NT5)
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54 KiB

/*++
Copyright (C) 1998-1999 Microsoft Corporation
Module Name:
smlogs.cpp
Abstract:
Implementation of the base class representing the
Performance Logs and Alerts service.
--*/
#include "Stdafx.h"
// Define the following to use the minimum of shlwapip.h
#ifndef NO_SHLWAPI_PATH
#define NO_SHLWAPI_PATH
#endif
#ifndef NO_SHLWAPI_REG
#define NO_SHLWAPI_REG
#endif
#ifndef NO_SHLWAPI_UALSTR
#define NO_SHLWAPI_UALSTR
#endif
#ifndef NO_SHLWAPI_STREAM
#define NO_SHLWAPI_STREAM
#endif
#ifndef NO_SHLWAPI_HTTP
#define NO_SHLWAPI_HTTP
#endif
#ifndef NO_SHLWAPI_INTERNAL
#define NO_SHLWAPI_INTERNAL
#endif
#ifndef NO_SHLWAPI_GDI
#define NO_SHLWAPI_GDI
#endif
#ifndef NO_SHLWAPI_UNITHUNK
#define NO_SHLWAPI_UNITHUNK
#endif
#ifndef NO_SHLWAPI_TPS
#define NO_SHLWAPI_TPS
#endif
#ifndef NO_SHLWAPI_MLUI
#define NO_SHLWAPI_MLUI
#endif
#include <shlwapi.h> // For SHLoadIndirectString
#include <shlwapip.h> // For SHLoadIndirectString
#include <pdh.h> // For MIN_TIME_VALUE, MAX_TIME_VALUE
#include <pdhp.h> // For pdhi methods
#include <wbemidl.h>
#include "smlogres.h"
#include "smcfgmsg.h"
#include "smalrtq.h"
#include "smctrqry.h"
#include "smtraceq.h"
#include "smlogs.h"
#include "strnoloc.h"
USE_HANDLE_MACROS("SMLOGCFG(smlogs.cpp)");
#define DEFAULT_LOG_FILE_FOLDER L"%SystemDrive%\\PerfLogs"
//
// Constructor
CSmLogService::CSmLogService()
: m_hKeyMachine ( NULL ),
m_hKeyLogService ( NULL ),
m_hKeyLogServiceRoot ( NULL ),
m_bIsOpen ( FALSE ),
m_bReadOnly ( FALSE )
{
// String allocation errors are thrown, to be
// captured by rootnode alloc exception handler
m_QueryList.RemoveAll(); // initialize the list
ZeroMemory(&m_OSVersion, sizeof(m_OSVersion));
return;
}
//
// Destructor
CSmLogService::~CSmLogService()
{
// make sure Close method was called first!
ASSERT ( NULL == m_QueryList.GetHeadPosition() );
ASSERT ( NULL == m_hKeyMachine );
ASSERT ( NULL == m_hKeyLogService );
ASSERT ( NULL == m_hKeyLogServiceRoot );
return;
}
PSLQUERY
CSmLogService::CreateTypedQuery (
const CString& rstrName,
DWORD dwLogType )
{
HKEY hKeyQuery;
PSLQUERY pNewLogQuery = NULL;
DWORD dwStatus = ERROR_SUCCESS;
DWORD dwDisposition;
DWORD dwRegValue;
UUID uuidNew;
RPC_STATUS rpcStat = RPC_S_OK;
LPTSTR pszUuid = NULL;
INT iBufLen = rstrName.GetLength()+1;
LPTSTR pszName = NULL;
LPTSTR pStat = NULL;
BOOL bDupFound = FALSE;
CString strNewQueryName;
CString strCollectionName;
if (m_bReadOnly) {
SetLastError (SMCFG_NO_MODIFY_ACCESS);
return NULL; // unable to create without WRITE access
} else {
// Initialize to success status.
SetLastError( dwStatus );
}
if ( !IsWindows2000Server() ) {
// For servers later than Windows2000, use a GUID as the key name for a query.
rpcStat = UuidCreate( &uuidNew );
if ( RPC_S_OK != rpcStat && RPC_S_UUID_LOCAL_ONLY != rpcStat ) {
rpcStat = UuidCreateSequential ( &uuidNew );
}
if ( RPC_S_OK == rpcStat || RPC_S_UUID_LOCAL_ONLY == rpcStat ) {
rpcStat = UuidToString ( &uuidNew, &pszUuid );
if ( RPC_S_OK == rpcStat ) {
ASSERT ( NULL != pszUuid );
MFC_TRY
strNewQueryName.Format ( L"{%s}", pszUuid );
MFC_CATCH_DWSTATUS
RpcStringFree ( &pszUuid );
} else {
dwStatus = rpcStat;
}
}
// RPC_STATUS values in rpcnterr.h correspond to appropriate values.
dwStatus = rpcStat;
} else {
// For Windows 2000, use query name as registry key name.
MFC_TRY
strNewQueryName = rstrName;
MFC_CATCH_DWSTATUS
}
if ( ERROR_SUCCESS == dwStatus ) {
// Query key name created
// Create the query specified, checking for duplicate query by key name.
dwStatus = RegCreateKeyExW (
m_hKeyLogService,
strNewQueryName,
0,
NULL, 0,
KEY_READ | KEY_WRITE,
NULL,
&hKeyQuery,
&dwDisposition);
if ( REG_OPENED_EXISTING_KEY == dwDisposition ) {
dwStatus = SMCFG_DUP_QUERY_NAME;
}
}
if ( ERROR_SUCCESS == dwStatus ) {
// Initialize the current state value. After it is
// initialized, it is only modified when:
// 1) Set to Stopped or Started by the service
// 2) Set to Start Pending by the config snapin.
dwRegValue = SLQ_QUERY_STOPPED;
dwStatus = RegSetValueEx (
hKeyQuery,
L"Current State",
0L,
REG_DWORD,
(CONST BYTE *)&dwRegValue,
sizeof(DWORD));
if ( ERROR_SUCCESS == dwStatus ) {
// Initialize the log type to "new" to indicate partially created logs
dwRegValue = SLQ_NEW_LOG;
dwStatus = RegSetValueEx (
hKeyQuery,
L"Log Type",
0L,
REG_DWORD,
(CONST BYTE *)&dwRegValue,
sizeof(DWORD));
}
if ( ERROR_SUCCESS == dwStatus && !IsWindows2000Server() ) {
// Initialize the collection name for post Windows 2000 systems
MFC_TRY
strCollectionName = rstrName;
MFC_CATCH_DWSTATUS
if ( ERROR_SUCCESS == dwStatus ) {
dwStatus = RegSetValueEx (
hKeyQuery,
L"Collection Name",
0L,
REG_SZ,
(CONST BYTE *)strCollectionName.GetBufferSetLength( strCollectionName.GetLength() ),
strCollectionName.GetLength()*sizeof(TCHAR) );
strCollectionName.ReleaseBuffer();
}
// For post Windows 2000 counters, search for duplicate by collection name.
if ( ERROR_SUCCESS == dwStatus ) {
dwStatus = FindDuplicateQuery ( rstrName, bDupFound );
}
}
if ( ERROR_SUCCESS == dwStatus && !bDupFound ) {
// create a new object and add it to the query list
dwStatus = LoadSingleQuery (
&pNewLogQuery,
dwLogType,
rstrName,
strNewQueryName,
hKeyQuery,
TRUE );
} else {
if ( bDupFound ) {
dwStatus = SMCFG_DUP_QUERY_NAME;
}
}
}
if ( ERROR_SUCCESS != dwStatus ) {
// Delete also closes the registry key hKeyQuery.
if ( !strNewQueryName.IsEmpty() ) {
RegDeleteKeyW ( m_hKeyLogService, strNewQueryName );
SetLastError ( dwStatus );
}
}
return pNewLogQuery;
}
DWORD
CSmLogService::UnloadSingleQuery (PSLQUERY pQuery)
{
DWORD dwStatus = ERROR_SUCCESS;
PSLQUERY pLogQuery = NULL;
POSITION listPos = NULL;
BOOL bFoundEntry = FALSE;
// find matching entry
if (!m_QueryList.IsEmpty()) {
listPos = m_QueryList.Find (pQuery, NULL);
if ( NULL != listPos ) {
pLogQuery = m_QueryList.GetAt(listPos);
bFoundEntry = TRUE;
}
}
if (bFoundEntry) {
ASSERT ( NULL != listPos );
// remove from list
m_QueryList.RemoveAt (listPos);
pLogQuery->Close();
delete pLogQuery;
} else {
// not found
dwStatus = ERROR_FILE_NOT_FOUND;
}
return dwStatus;
}
DWORD
CSmLogService::DeleteQuery ( PSLQUERY pQuery )
{
PSLQUERY pLogQuery = NULL;
DWORD dwStatus = ERROR_SUCCESS;
POSITION listPos = NULL;
BOOL bFoundEntry = FALSE;
CString strLogKeyName;
if (m_bReadOnly) {
dwStatus = ERROR_ACCESS_DENIED;
} else {
// find matching entry
if (!m_QueryList.IsEmpty()) {
listPos = m_QueryList.Find (pQuery, NULL);
if (listPos != NULL) {
pLogQuery = m_QueryList.GetAt(listPos);
bFoundEntry = TRUE;
}
}
if (bFoundEntry) {
ASSERT (listPos != NULL);
MFC_TRY
pLogQuery->GetLogKeyName( strLogKeyName );
MFC_CATCH_DWSTATUS;
if ( ERROR_SUCCESS == dwStatus ) {
// remove from list
m_QueryList.RemoveAt (listPos);
pLogQuery->Close();
// Delete in the registry
RegDeleteKeyW ( m_hKeyLogService, strLogKeyName );
delete pLogQuery;
}
} else {
// not found
dwStatus = ERROR_FILE_NOT_FOUND;
}
}
return dwStatus;
}
DWORD
CSmLogService::DeleteQuery ( const CString& rstrName )
{
PSLQUERY pLogQuery = NULL;
DWORD dwStatus = ERROR_SUCCESS;
POSITION listPos;
BOOL bFoundEntry = FALSE;
if (m_bReadOnly) {
dwStatus = ERROR_ACCESS_DENIED;
} else {
// find matching entry
if (!m_QueryList.IsEmpty()) {
listPos = m_QueryList.GetHeadPosition();
while (listPos != NULL) {
pLogQuery = m_QueryList.GetNext(listPos);
if ( 0 == rstrName.CompareNoCase ( pLogQuery->GetLogName() ) ) {
// match found so bail here
bFoundEntry = TRUE;
break;
}
}
}
if (bFoundEntry) {
dwStatus = DeleteQuery ( pLogQuery );
} else {
// not found
dwStatus = ERROR_FILE_NOT_FOUND;
}
}
return dwStatus;
}
DWORD
CSmLogService::LoadDefaultLogFileFolder ( void )
{
DWORD dwStatus = ERROR_SUCCESS;
LPWSTR szLocalPath = NULL;
LPWSTR szExpanded = NULL;
INT cchLen;
INT cchExpandedLen;
DWORD dwBufferSize = MAX_PATH + 1;
m_strDefaultLogFileFolder.Empty();
MFC_TRY
szLocalPath = new WCHAR [ dwBufferSize ];
dwBufferSize *= sizeof(WCHAR);
if ( NULL != m_hKeyLogServiceRoot ) {
dwStatus = RegQueryValueExW (
m_hKeyLogServiceRoot,
(LPCTSTR)L"DefaultLogFileFolder",
NULL,
0L,
(LPBYTE)szLocalPath,
&dwBufferSize);
//
// No message on error. If error, just load the default.
//
if ( sizeof(WCHAR) < dwBufferSize ) {
if ( IsLocalMachine() ) {
cchLen = 0;
cchExpandedLen = 0;
cchLen = ExpandEnvironmentStrings ( szLocalPath, NULL, 0 );
if ( 0 < cchLen ) {
szExpanded = new WCHAR[cchLen];
cchExpandedLen = ExpandEnvironmentStrings (
szLocalPath,
szExpanded,
cchLen );
if ( 0 < cchExpandedLen && MAX_PATH > cchExpandedLen ) {
m_strDefaultLogFileFolder = szExpanded;
} else {
dwStatus = GetLastError();
m_strDefaultLogFileFolder.Empty();
}
} else {
dwStatus = GetLastError();
}
} else {
m_strDefaultLogFileFolder = szLocalPath;
}
}
if ( sizeof(WCHAR) >= dwBufferSize || m_strDefaultLogFileFolder.IsEmpty() ) {
ResourceStateManager rsm;
CString strFolderName;
strFolderName.LoadString ( IDS_DEFAULT_LOG_FILE_FOLDER );
if ( dwBufferSize > (MAX_PATH + 1)*sizeof(WCHAR) ) {
if ( NULL != szLocalPath ) {
delete [] szLocalPath;
szLocalPath = NULL;
}
szLocalPath = new WCHAR [strFolderName.GetLength() + 1];
}
lstrcpy ( szLocalPath, strFolderName );
//
// Exact copy of code for processing the registry setting.
//
if ( IsLocalMachine() ) {
cchLen = 0;
cchExpandedLen = 0;
cchLen = ExpandEnvironmentStrings ( szLocalPath, NULL, 0 );
if ( 0 < cchLen ) {
szExpanded = new WCHAR[cchLen];
cchExpandedLen = ExpandEnvironmentStrings (
szLocalPath,
szExpanded,
cchLen );
if ( 0 < cchExpandedLen && MAX_PATH > cchExpandedLen ) {
m_strDefaultLogFileFolder = szExpanded;
} else {
dwStatus = GetLastError();
m_strDefaultLogFileFolder.Empty();
}
} else {
dwStatus = GetLastError();
}
} else {
m_strDefaultLogFileFolder = szLocalPath;
}
}
}
MFC_CATCH_DWSTATUS
if ( NULL != szLocalPath ) {
delete [] szLocalPath;
}
if ( NULL != szExpanded ) {
delete [] szExpanded;
}
return dwStatus;
}
DWORD
CSmLogService::LoadSingleQuery (
PSLQUERY* ppQuery,
DWORD dwLogType,
const CString& rstrName,
const CString& rstrLogKeyName,
HKEY hKeyQuery,
BOOL bNew )
{
DWORD dwStatus = ERROR_SUCCESS;
PSLQUERY pNewQuery = NULL;
if ( NULL != ppQuery ) {
*ppQuery = NULL;
// create a new query object and add it to the query list
MFC_TRY
if ( SLQ_COUNTER_LOG == dwLogType ) {
pNewQuery = new SLCTRQUERY ( this );
} else if ( SLQ_TRACE_LOG == dwLogType ) {
pNewQuery = new SLTRACEQUERY ( this );
} else if ( SLQ_ALERT == dwLogType ) {
pNewQuery = new SLALERTQUERY ( this );
}
MFC_CATCH_DWSTATUS
if ( ERROR_SUCCESS == dwStatus && NULL != pNewQuery ) {
pNewQuery->SetNew ( bNew );
dwStatus = pNewQuery->Open(
rstrName,
hKeyQuery,
m_bReadOnly );
if ( ERROR_SUCCESS == dwStatus ) {
dwStatus = pNewQuery->SetLogKeyName ( rstrLogKeyName );
}
if ( ERROR_SUCCESS == dwStatus ) {
// then add it to the list
MFC_TRY
m_QueryList.AddHead ( pNewQuery );
MFC_CATCH_DWSTATUS
if ( ERROR_SUCCESS != dwStatus ) {
// close this query object
pNewQuery->Close();
}
}
if ( ERROR_SUCCESS != dwStatus ) {
// delete this query object
delete pNewQuery;
}
}
if ( ERROR_SUCCESS == dwStatus ) {
*ppQuery = pNewQuery;
}
} else {
dwStatus = ERROR_INVALID_PARAMETER;
}
return dwStatus;
}
DWORD
CSmLogService::LoadQueries ( DWORD dwLogType )
{
DWORD dwStatus = ERROR_SUCCESS;
DWORD dwQueryIndex = 0;
LONG lEnumStatus = ERROR_SUCCESS;
WCHAR szQueryKeyName[MAX_PATH + 1];
DWORD dwQueryKeyNameLen;
LPWSTR szCollectionName = NULL;
UINT uiCollectionNameLen = 0;
FILETIME ftLastWritten;
HKEY hKeyQuery;
PSLQUERY pNewLogQuery = NULL;
DWORD dwType = 0;
DWORD dwBufferSize = sizeof(DWORD);
DWORD dwRegValue;
CString strQueryName;
// Load all queries for the specified registry key.
// Enumerate the log names and create a new log object
// for each one found.
dwQueryKeyNameLen = sizeof ( szQueryKeyName ) / sizeof ( WCHAR );
memset (szQueryKeyName, 0, sizeof (szQueryKeyName));
while ( ERROR_SUCCESS == ( lEnumStatus = RegEnumKeyExW (
m_hKeyLogService,
dwQueryIndex,
szQueryKeyName,
&dwQueryKeyNameLen,
NULL,
NULL,
NULL,
&ftLastWritten ) ) ) {
// open the query specified
dwStatus = RegOpenKeyExW (
m_hKeyLogService,
szQueryKeyName,
0,
(m_bReadOnly ? KEY_READ : KEY_READ | KEY_WRITE),
&hKeyQuery);
if ( ERROR_SUCCESS == dwStatus ) {
// create a new object and add it to the query list
// Determine the log type.
dwType = 0;
dwStatus = RegQueryValueExW (
hKeyQuery,
L"Log Type",
NULL,
&dwType,
(LPBYTE)&dwRegValue,
&dwBufferSize );
if ( ( ERROR_SUCCESS == dwStatus )
&& ( dwLogType == dwRegValue ) ) {
dwStatus = SmReadRegistryIndirectStringValue (
hKeyQuery,
L"Collection Name",
NULL,
&szCollectionName,
&uiCollectionNameLen );
MFC_TRY
if ( ERROR_SUCCESS == dwStatus
&& NULL != szCollectionName ) {
if ( 0 < lstrlen ( szCollectionName ) ) {
strQueryName = szCollectionName;
} else {
strQueryName = szQueryKeyName;
dwStatus = ERROR_SUCCESS;
}
} else {
strQueryName = szQueryKeyName;
dwStatus = ERROR_SUCCESS;
}
MFC_CATCH_DWSTATUS;
if ( NULL != szCollectionName ) {
G_FREE ( szCollectionName );
szCollectionName = NULL;
uiCollectionNameLen = 0;
}
if ( ERROR_SUCCESS == dwStatus ) {
dwStatus = LoadSingleQuery (
&pNewLogQuery,
dwRegValue,
strQueryName,
szQueryKeyName,
hKeyQuery,
FALSE );
if ( ERROR_SUCCESS != dwStatus ) {
// Todo: Error message
dwStatus = ERROR_SUCCESS;
}
}
} else {
// Try the next item in the list
RegCloseKey (hKeyQuery);
dwStatus = ERROR_SUCCESS;
}
}
// set up for the next item in the list
dwQueryKeyNameLen = sizeof (szQueryKeyName) / sizeof (szQueryKeyName[0]);
memset (szQueryKeyName, 0, sizeof (szQueryKeyName));
dwQueryIndex++;
}
return dwStatus;
}
//
// Open function. Opens all existing log query entries.
//
DWORD
CSmLogService::Open ( const CString& rstrMachineName)
{
DWORD dwStatus = ERROR_SUCCESS;
// Initialize strings
SetMachineName ( rstrMachineName );
SetDisplayName ( m_strBaseName );
if ( rstrMachineName.IsEmpty() ) {
m_hKeyMachine = HKEY_LOCAL_MACHINE;
} else {
dwStatus = RegConnectRegistryW (
rstrMachineName,
HKEY_LOCAL_MACHINE,
&m_hKeyMachine);
}
if (dwStatus == ERROR_SUCCESS) {
// open a read-only key to the registry root key for this service, to obtain
// root-level values.
dwStatus = RegOpenKeyExW (
m_hKeyMachine,
(LPCWSTR)L"SYSTEM\\CurrentControlSet\\Services\\SysmonLog",
0,
KEY_READ,
&m_hKeyLogServiceRoot);
// No message on failure. Currently only affects default log file folder name.
// open a key to the registry log queries key for this service
dwStatus = RegOpenKeyExW (
m_hKeyMachine,
(LPCWSTR)L"SYSTEM\\CurrentControlSet\\Services\\SysmonLog\\Log Queries",
0,
KEY_READ | KEY_WRITE,
&m_hKeyLogService);
if (dwStatus != ERROR_SUCCESS) {
// unable to access the key for write access, so try read only
dwStatus = RegOpenKeyExW (
m_hKeyMachine,
(LPCWSTR)L"SYSTEM\\CurrentControlSet\\Services\\SysmonLog\\Log Queries",
0,
KEY_READ,
&m_hKeyLogService);
if (dwStatus != ERROR_SUCCESS) {
// unable to open the key for read access so bail out
// assume the service has not been installed
// (though we should probably check first to make sure)
m_hKeyLogService = NULL;
if ( ERROR_ACCESS_DENIED == dwStatus ) {
dwStatus = SMCFG_NO_READ_ACCESS;
}
} else {
// opened for read access so set the flag
m_bReadOnly = TRUE;
}
}
}
// Install the service if necessary.
if ( ( dwStatus != SMCFG_NO_READ_ACCESS ) ) {
dwStatus = Install( rstrMachineName );
}
// Load all queries
if ( ( dwStatus == ERROR_SUCCESS ) && ( NULL != m_hKeyLogService ) ) {
dwStatus = LoadQueries();
}
if ( ERROR_SUCCESS == dwStatus ) {
SetOpen ( TRUE );
}
return dwStatus;
}
DWORD
CSmLogService::UnloadQueries ()
{
DWORD dwStatus = ERROR_SUCCESS;
PSLQUERY pQuery = NULL;
POSITION Pos = m_QueryList.GetHeadPosition();
// Ensure that all property dialogs are closed before unloading queries.
while ( Pos != NULL) {
pQuery = m_QueryList.GetNext( Pos );
if ( NULL != pQuery->GetActivePropertySheet() ) {
// Todo: Server Beta 3 - Need specific error code
dwStatus = IDS_ERRMSG_DELETE_OPEN_QUERY;
break;
}
}
if ( ERROR_SUCCESS == dwStatus ) {
Pos = m_QueryList.GetHeadPosition();
// Update each query in this service by walking down the list.
while ( Pos != NULL) {
pQuery = m_QueryList.GetNext( Pos );
pQuery->Close();
delete (pQuery);
}
// Empty the list now that everything has been closed;
m_QueryList.RemoveAll();
}
return dwStatus;
}
//
// Close Function
// closes registry handles and frees allocated memory
//
DWORD
CSmLogService::Close ()
{
LOCALTRACE (L"Closing SysmonLog Service Object\n");
UnloadQueries();
// close any open registry keys
if (m_hKeyMachine != NULL) {
RegCloseKey (m_hKeyMachine);
m_hKeyMachine = NULL;
}
if (m_hKeyLogService != NULL) {
RegCloseKey (m_hKeyLogService);
m_hKeyLogService = NULL;
}
if (m_hKeyLogServiceRoot!= NULL) {
RegCloseKey (m_hKeyLogServiceRoot);
m_hKeyLogServiceRoot = NULL;
}
SetOpen ( FALSE );
return ERROR_SUCCESS;
}
DWORD
CSmLogService::UpdateConfig()
{
// If any queries are (newly) set to auto start, then set the
// service to auto start. Otherwise, set to manual start.
// When setting to auto start, also set failure mode to restart
DWORD dwStatus = ERROR_SUCCESS;
BOOL bStatus = 0;
POSITION listPos;
PSLQUERY pLogQuery = NULL;
SC_HANDLE hSC = NULL;
SC_HANDLE hService = NULL;
BOOL bAutoStart = FALSE;
DWORD pqsConfigBuff[128];
QUERY_SERVICE_CONFIG* pqsConfig;
SC_ACTION* parrSingleFailAction = NULL;
SERVICE_FAILURE_ACTIONS structFailActions;
DWORD dwMoreBytes = 0;
BOOL bUpdate = FALSE;
// check for duplicate entry
if (!m_QueryList.IsEmpty()) {
listPos = m_QueryList.GetHeadPosition();
while (listPos != NULL) {
pLogQuery = m_QueryList.GetNext(listPos);
if ( pLogQuery->IsAutoStart() ) {
bAutoStart = TRUE;
break;
}
}
}
// open SC database
hSC = OpenSCManager ( GetMachineName(), NULL, GENERIC_READ );
if (hSC != NULL) {
// open service
hService = OpenService (
hSC,
TEXT("SysmonLog"),
SERVICE_CHANGE_CONFIG | SERVICE_QUERY_CONFIG | SERVICE_START );
if (hService != NULL) {
// get current config
memset (pqsConfigBuff, 0, sizeof(pqsConfigBuff));
pqsConfig = (QUERY_SERVICE_CONFIG*)pqsConfigBuff;
if ( QueryServiceConfig (
hService,
pqsConfig,
sizeof(pqsConfigBuff),
&dwMoreBytes)) {
// See if the current status is different
// from the selection. If it is, then change
// the current mode.
if ( bAutoStart ) {
if ( SERVICE_DEMAND_START == pqsConfig->dwStartType ) {
bUpdate = TRUE;
}
} else {
// Manual start selected
if ( SERVICE_AUTO_START == pqsConfig->dwStartType ) {
bUpdate = TRUE;
}
}
} else {
// else unable to read the current status so update anyway
bUpdate = TRUE;
}
if ( bUpdate ) {
MFC_TRY
parrSingleFailAction = new SC_ACTION[3];
MFC_CATCH_DWSTATUS;
if ( NULL != parrSingleFailAction ) {
parrSingleFailAction[0].Delay = eRestartDelayMilliseconds;
parrSingleFailAction[1].Delay = eRestartDelayMilliseconds;
parrSingleFailAction[2].Delay = eRestartDelayMilliseconds;
if ( bAutoStart ) {
parrSingleFailAction[0].Type = SC_ACTION_RESTART;
parrSingleFailAction[1].Type = SC_ACTION_RESTART;
parrSingleFailAction[2].Type = SC_ACTION_RESTART;
} else {
parrSingleFailAction[0].Type = SC_ACTION_NONE;
parrSingleFailAction[1].Type = SC_ACTION_NONE;
parrSingleFailAction[2].Type = SC_ACTION_NONE;
}
structFailActions.dwResetPeriod = eResetDelaySeconds;
structFailActions.lpRebootMsg = NULL;
structFailActions.lpCommand = NULL;
structFailActions.cActions = 3;
structFailActions.lpsaActions = parrSingleFailAction;
bStatus = ChangeServiceConfig (
hService,
SERVICE_NO_CHANGE,
(bAutoStart ? SERVICE_AUTO_START : SERVICE_DEMAND_START),
SERVICE_NO_CHANGE,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL );
if ( 0 == bStatus ) {
dwStatus = GetLastError();
} else {
bStatus = ChangeServiceConfig2 (
hService,
SERVICE_CONFIG_FAILURE_ACTIONS,
&structFailActions );
if ( 0 == bStatus ) {
dwStatus = GetLastError();
}
}
delete parrSingleFailAction;
} else {
dwStatus = ERROR_OUTOFMEMORY;
}
}
CloseServiceHandle (hService);
} else {
dwStatus = GetLastError();
ASSERT (dwStatus != 0);
}
CloseServiceHandle (hSC);
} else {
dwStatus = GetLastError();
} // OpenSCManager
return dwStatus;
}
//
// SyncWithRegistry()
// reads the current values for all queries from the registry
// and reloads the internal values to match
//
DWORD CSmLogService::SyncWithRegistry ( void )
{
DWORD dwStatus = ERROR_SUCCESS;
CString strDesc;
ResourceStateManager rsm;
// Unload queries and reload, to capture new queries.
// This is necessary for monitoring remote systems,
// and if multiple users are active on the same system.
dwStatus = UnloadQueries ();
if ( ERROR_SUCCESS == dwStatus ) {
dwStatus = LoadQueries ();
}
return dwStatus;
}
DWORD
CSmLogService::GetState( void )
{
// Check the status of the log service via the service controller.
// 0 returned in case of error.
LONG dwStatus = ERROR_SUCCESS;
DWORD dwState = 0; // Error by default.
SERVICE_STATUS ssData;
SC_HANDLE hSC;
SC_HANDLE hLogService;
// open SC database
hSC = OpenSCManager ( GetMachineName(), NULL, SC_MANAGER_CONNECT);
if (hSC != NULL) {
// open service
hLogService = OpenService (
hSC,
TEXT("SysmonLog"),
SERVICE_INTERROGATE );
if (hLogService != NULL) {
if ( ControlService (
hLogService,
SERVICE_CONTROL_INTERROGATE,
&ssData)) {
dwState = ssData.dwCurrentState;
} else {
dwStatus = GetLastError();
dwState = SERVICE_STOPPED;
}
CloseServiceHandle (hLogService);
} else {
dwStatus = GetLastError();
}
CloseServiceHandle (hSC);
} else {
dwStatus = GetLastError();
} // OpenSCManager
return dwState;
}
BOOL
CSmLogService::IsRunning( void )
{
DWORD dwState = GetState();
BOOL bRunning = FALSE;
if ( 0 != dwState
&& SERVICE_STOPPED != dwState
&& SERVICE_STOP_PENDING != dwState ) {
bRunning = TRUE;
}
return bRunning;
}
DWORD
CSmLogService::CreateDefaultLogQueries( void )
{
DWORD dwStatus = ERROR_SUCCESS;
PSLQUERY pQuery = NULL;
CString strTemp;
CString strModuleName;
BOOL bRegistryUpdated;
BOOL bDupFound = FALSE;
ResourceStateManager rsm;
// Creates default "System Overview" counter log query
MFC_TRY
strTemp.LoadString ( IDS_DEFAULT_CTRLOG_QUERY_NAME );
MFC_CATCH_DWSTATUS;
if ( ERROR_SUCCESS == dwStatus ) {
pQuery = CreateTypedQuery ( strTemp, SLQ_COUNTER_LOG );
if ( NULL != pQuery && !IsWindows2000Server() ) {
// Default query collection name is stored as MUI indirect string after Windows 2000
MFC_TRY
::GetModuleFileName(
AfxGetInstanceHandle(),
strModuleName.GetBufferSetLength(MAX_PATH),
MAX_PATH );
strTemp.Format (_T("@%s,-%d"), strModuleName, IDS_DEFAULT_CTRLOG_QUERY_NAME );
strModuleName.ReleaseBuffer();
MFC_CATCH_DWSTATUS;
if ( ERROR_SUCCESS == dwStatus ) {
dwStatus = RegSetValueEx (
pQuery->GetQueryKey(),
L"Collection Name Indirect",
0L,
REG_SZ,
(CONST BYTE *)strTemp.GetBufferSetLength( strTemp.GetLength() ),
strTemp.GetLength()*sizeof(WCHAR) );
strTemp.ReleaseBuffer();
}
// CreateTypedQuery checks for the existence of the default query
// using the the query name.
// Check for the existence of the default query under the MUI indirect
// name as well.
if ( NULL != pQuery ) {
if ( ERROR_SUCCESS == dwStatus ) {
FindDuplicateQuery ( strTemp, bDupFound );
if ( bDupFound ) {
DeleteQuery ( pQuery );
pQuery = NULL;
dwStatus = ERROR_SUCCESS;
}
}
}
}
if ( NULL != pQuery ) {
SLQ_TIME_INFO slqTime;
PSLCTRQUERY pCtrQuery = NULL;
MFC_TRY
pCtrQuery = pQuery->CastToCounterLogQuery();
pCtrQuery->SetFileNameAutoFormat ( SLF_NAME_NONE );
pCtrQuery->SetLogFileType ( SLF_BIN_FILE );
pCtrQuery->SetDataStoreAppendMode ( SLF_DATA_STORE_OVERWRITE );
strTemp.LoadString ( IDS_DEFAULT_CTRLOG_COMMENT );
pCtrQuery->SetLogComment ( strTemp );
if ( !IsWindows2000Server() ) {
strTemp.Format (_T("@%s,-%d"), strModuleName, IDS_DEFAULT_CTRLOG_COMMENT );
pCtrQuery->SetLogCommentIndirect ( strTemp );
}
strTemp.LoadString ( IDS_DEFAULT_CTRLOG_FILE_NAME );
pCtrQuery->SetLogFileName ( strTemp );
if ( !IsWindows2000Server() ) {
strTemp.Format (_T("@%s,-%d"), strModuleName, IDS_DEFAULT_CTRLOG_FILE_NAME );
pCtrQuery->SetLogFileNameIndirect ( strTemp );
}
pCtrQuery->AddCounter ( CGlobalString::m_cszDefaultCtrLogCpuPath );
pCtrQuery->AddCounter ( CGlobalString::m_cszDefaultCtrLogMemoryPath );
pCtrQuery->AddCounter ( CGlobalString::m_cszDefaultCtrLogDiskPath );
// Start mode and time
memset (&slqTime, 0, sizeof(slqTime));
slqTime.wTimeType = SLQ_TT_TTYPE_START;
slqTime.wDataType = SLQ_TT_DTYPE_DATETIME;
slqTime.dwAutoMode = SLQ_AUTO_MODE_NONE;
slqTime.llDateTime = MAX_TIME_VALUE;
pCtrQuery->SetLogTime (&slqTime, (DWORD)slqTime.wTimeType);
// Stop mode and time
slqTime.wTimeType = SLQ_TT_TTYPE_STOP;
slqTime.llDateTime = MIN_TIME_VALUE;
pCtrQuery->SetLogTime (&slqTime, (DWORD)slqTime.wTimeType);
pCtrQuery->UpdateService( bRegistryUpdated );
// Set the default log to Execute Only.
dwStatus = pCtrQuery->UpdateExecuteOnly ();
MFC_CATCH_DWSTATUS
if ( ERROR_SUCCESS == dwStatus && NULL != pCtrQuery ) {
VERIFY ( ERROR_SUCCESS == UnloadSingleQuery ( pCtrQuery ) );
} else if ( NULL != pCtrQuery ) {
DeleteQuery ( pCtrQuery );
}
} else {
dwStatus = GetLastError();
if ( SMCFG_DUP_QUERY_NAME == dwStatus ) {
dwStatus = ERROR_SUCCESS;
}
}
}
return dwStatus;
}
DWORD
CSmLogService::Install (
const CString& rstrMachineName )
{
DWORD dwStatus = ERROR_SUCCESS;
DWORD dwDisposition = 0;
HKEY hKeyPerfLog = NULL;
CString strValueName;
DWORD dwType;
DWORD dwRegValue;
DWORD dwBufferSize;
BOOL bReadOnlyPerfLogKey = FALSE;
BOOL bReadOnlyLogQueriesKey = FALSE;
ResourceStateManager rsm;
//
// Get machine OS version
//
PdhiPlaGetVersion( rstrMachineName, &m_OSVersion );
if ( NULL == m_hKeyMachine ) {
if ( rstrMachineName.IsEmpty() ) {
m_hKeyMachine = HKEY_LOCAL_MACHINE;
} else {
dwStatus = RegConnectRegistryW (
rstrMachineName,
HKEY_LOCAL_MACHINE,
&m_hKeyMachine);
}
}
if ( ERROR_SUCCESS == dwStatus ) {
dwStatus = RegOpenKeyEx (
m_hKeyMachine,
TEXT("System\\CurrentControlSet\\Services\\SysmonLog"),
0,
KEY_READ | KEY_WRITE,
&hKeyPerfLog);
if (dwStatus != ERROR_SUCCESS) {
// unable to access the key for write access, so try read only
dwStatus = RegOpenKeyEx (
m_hKeyMachine,
TEXT("System\\CurrentControlSet\\Services\\SysmonLog"),
0,
KEY_READ,
&hKeyPerfLog);
if ( ERROR_SUCCESS == dwStatus ) {
bReadOnlyPerfLogKey = TRUE;
}
}
}
EnterCriticalSection ( &g_critsectInstallDefaultQueries );
// In Windows 2000, the Log Queries key is created by the snapin.
// After Windows 2000, the Log Queries key is created by system setup,
// along with a "Default Installed" registry flag.
if ( ERROR_SUCCESS == dwStatus && NULL == m_hKeyLogService ) {
if ( !bReadOnlyPerfLogKey ) {
// add registry subkey for Log Queries
dwStatus = RegCreateKeyEx (
hKeyPerfLog,
TEXT("Log Queries"),
0,
NULL,
REG_OPTION_NON_VOLATILE,
KEY_READ | KEY_WRITE,
NULL,
&m_hKeyLogService,
&dwDisposition);
} else {
// ReadOnly SysmonLog key. Still possible to succeed if Log Queries
// exists with read/write access.
dwStatus = RegOpenKeyEx (
m_hKeyMachine,
TEXT("System\\CurrentControlSet\\Services\\SysmonLog\\Log Queries"),
0,
KEY_READ | KEY_WRITE,
&m_hKeyLogService);
if (dwStatus == ERROR_SUCCESS) {
bReadOnlyLogQueriesKey = FALSE;
} else {
// unable to access the key for write access, so try read only
dwStatus = RegOpenKeyExW (
m_hKeyMachine,
(LPCWSTR)L"SYSTEM\\CurrentControlSet\\Services\\SysmonLog\\Log Queries",
0,
KEY_READ,
&m_hKeyLogService);
if ( ERROR_SUCCESS == dwStatus ) {
bReadOnlyLogQueriesKey = TRUE;
}
}
}
} else if ( m_bReadOnly ) {
bReadOnlyLogQueriesKey = TRUE;
}
if ( ERROR_SUCCESS == dwStatus ) {
// Log queries key now exists.
strValueName = CGlobalString::m_cszDefaultsInstalled;
dwType = REG_DWORD;
dwRegValue = 0;
dwBufferSize = sizeof(DWORD);
dwStatus = RegQueryValueExW (
m_hKeyLogService,
strValueName,
NULL,
&dwType,
(LPBYTE)&dwRegValue,
&dwBufferSize );
if ( ERROR_SUCCESS != dwStatus
|| 0 == dwRegValue )
{
if ( !bReadOnlyLogQueriesKey ) {
// Create default counter log query.
// Todo: Message on error.
dwStatus = CreateDefaultLogQueries();
if ( ERROR_SUCCESS == dwStatus ) {
dwRegValue = SLQ_DEFAULT_SYS_QUERY;
dwStatus = RegSetValueEx (
m_hKeyLogService,
strValueName,
0L,
REG_DWORD,
(CONST BYTE *)&dwRegValue,
dwBufferSize);
}
} else {
dwStatus = SMCFG_NO_INSTALL_ACCESS;
}
}
}
if ( ERROR_SUCCESS == dwStatus ) {
RegFlushKey ( m_hKeyLogService );
// Ignore status.
}
LeaveCriticalSection ( &g_critsectInstallDefaultQueries );
if (NULL != hKeyPerfLog ) {
RegCloseKey (hKeyPerfLog);
}
if ( ERROR_ACCESS_DENIED == dwStatus ) {
dwStatus = SMCFG_NO_INSTALL_ACCESS;
}
return dwStatus;
}
DWORD
CSmLogService::Synchronize( void )
{
// If the service is running, tell it to synchronize itself,
// Check the state afterwards to see if it got the message.
// If stop pending or stopped, wait until the service is
// stopped and then attempt to start it. The service
// synchronizes itself from the registry when it is started.
// Return 0 for success, other for failure.
SC_HANDLE hSC = NULL;
SC_HANDLE hService = NULL;
SERVICE_STATUS ssData;
DWORD dwCurrentState;
DWORD dwTimeout = 50;
LONG dwStatus = ERROR_SUCCESS;
BOOL bServiceStarted = FALSE;
dwCurrentState = GetState();
if ( 0 == dwCurrentState ) {
dwStatus = 1;
} else {
// open SC database
hSC = OpenSCManager ( GetMachineName(), NULL, GENERIC_READ);
if ( NULL != hSC ) {
// open service
hService = OpenService (
hSC,
TEXT("SysmonLog"),
SERVICE_USER_DEFINED_CONTROL
| SERVICE_START );
if ( NULL != hService ) {
if ( ( SERVICE_STOPPED != dwCurrentState )
&& ( SERVICE_STOP_PENDING != dwCurrentState ) ) {
// Wait 100 milliseconds before synchronizing service,
// to ensure that registry values are written.
Sleep ( 100 );
ControlService (
hService,
SERVICE_CONTROL_SYNCHRONIZE,
&ssData);
dwCurrentState = ssData.dwCurrentState;
}
// Make sure that the ControlService call reached the service
// while it was in run state.
if ( ( SERVICE_STOPPED == dwCurrentState )
|| ( SERVICE_STOP_PENDING == dwCurrentState ) ) {
if ( SERVICE_STOP_PENDING == dwCurrentState ) {
// wait for the service to stop before starting it.
while (--dwTimeout) {
dwCurrentState = GetState();
if ( SERVICE_STOP_PENDING == dwCurrentState ) {
Sleep(200);
} else {
break;
}
}
}
dwTimeout = 50;
if ( SERVICE_STOPPED == dwCurrentState ) {
bServiceStarted = StartService (hService, 0, NULL);
if ( !bServiceStarted ) {
dwStatus = GetLastError();
if ( ERROR_SERVICE_ALREADY_RUNNING == dwStatus ) {
// Okay if started during the time window since
// the last GetState() call.
dwStatus = ERROR_SUCCESS;
bServiceStarted = TRUE;
} // else error
}
if ( bServiceStarted ) {
// wait for the service to start or stop
// before returning
while (--dwTimeout) {
dwCurrentState = GetState();
if ( SERVICE_START_PENDING == dwCurrentState ) {
Sleep(200);
} else {
break;
}
}
}
}
}
CloseServiceHandle (hService);
} else {
dwStatus = GetLastError();
}
CloseServiceHandle (hSC);
} else {
dwStatus = GetLastError();
}
}
// Update the Auto Start service config.
if ( ERROR_SUCCESS == dwStatus ) {
// Ignore errors
UpdateConfig();
}
return dwStatus;
}
void
CSmLogService::SetBaseName( const CString& rstrName )
{
// This method is only called within the service constructor,
// so throw any errors
m_strBaseName = rstrName;
return;
}
const CString&
CSmLogService::GetDefaultLogFileFolder()
{
if ( m_strDefaultLogFileFolder.IsEmpty() ) {
LoadDefaultLogFileFolder();
}
return m_strDefaultLogFileFolder;
}
INT
CSmLogService::GetQueryCount()
{
INT iQueryCount = -1;
// The query count is only valid if the service is open.
if ( IsOpen() ) {
iQueryCount = (int) m_QueryList.GetCount();
} else {
ASSERT ( FALSE );
}
return iQueryCount;
}
DWORD
CSmLogService::FindDuplicateQuery (
const CString cstrName,
BOOL& rbFound )
{
DWORD dwStatus = ERROR_SUCCESS;
HRESULT hrLocal = NOERROR;
DWORD dwQueryIndex = 0;
LONG lEnumStatus = ERROR_SUCCESS;
WCHAR szQueryKeyName[MAX_PATH + 1];
DWORD dwQueryKeyNameLen;
LPTSTR szCollectionName = NULL;
UINT uiCollectionNameLen = 0;
FILETIME ftLastWritten;
HKEY hKeyQuery = NULL;
BOOL bFoundFirst = FALSE;
CString strDirectName;
CString strLocalName;
ASSERT ( !cstrName.IsEmpty() );
rbFound = FALSE;
if ( !cstrName.IsEmpty() ) {
MFC_TRY
strLocalName = cstrName;
MFC_CATCH_DWSTATUS;
if ( ERROR_SUCCESS == dwStatus ) {
// Translate new query name if necessary
hrLocal = SHLoadIndirectString(
strLocalName.GetBufferSetLength ( strLocalName.GetLength() ),
strDirectName.GetBufferSetLength ( MAX_PATH ),
MAX_PATH,
NULL );
strLocalName.ReleaseBuffer();
strDirectName.ReleaseBuffer();
if ( FAILED ( hrLocal ) ) {
// Query name is not an indirect string
dwStatus = ERROR_SUCCESS;
MFC_TRY
strDirectName = strLocalName;
MFC_CATCH_DWSTATUS;
}
}
}
if ( ERROR_SUCCESS == dwStatus ) {
// Search all queries for the specified query.
dwQueryKeyNameLen = sizeof ( szQueryKeyName ) / sizeof ( WCHAR );
memset (szQueryKeyName, 0, sizeof (szQueryKeyName));
while ( ERROR_SUCCESS == ( lEnumStatus = RegEnumKeyExW (
m_hKeyLogService,
dwQueryIndex,
szQueryKeyName,
&dwQueryKeyNameLen,
NULL,
NULL,
NULL,
&ftLastWritten ) ) ) {
// open the query specified
dwStatus = RegOpenKeyExW (
m_hKeyLogService,
szQueryKeyName,
0,
KEY_READ,
&hKeyQuery);
if ( ERROR_SUCCESS == dwStatus ) {
// Query key is Guid if written by post Win2000 snapin.
// Query key is name if written by Win2000 snapin.
if ( 0 == strDirectName.CompareNoCase ( szQueryKeyName ) ) {
if ( TRUE == bFoundFirst ) {
rbFound = TRUE;
break;
} else {
bFoundFirst = TRUE;
}
} else {
dwStatus = SmReadRegistryIndirectStringValue (
hKeyQuery,
L"Collection Name",
NULL,
&szCollectionName,
&uiCollectionNameLen );
ASSERT ( MAX_PATH >= uiCollectionNameLen );
if ( ERROR_SUCCESS == dwStatus ) {
if ( MAX_PATH >= uiCollectionNameLen ) {
if ( NULL != szCollectionName ) {
if ( L'\0' == *szCollectionName ) {
G_FREE ( szCollectionName );
szCollectionName = NULL;
}
}
if ( NULL == szCollectionName ) {
MFC_TRY
szCollectionName = (LPWSTR)G_ALLOC ( (lstrlen(szQueryKeyName)+1)*sizeof(WCHAR));
MFC_CATCH_DWSTATUS;
if ( ERROR_SUCCESS == dwStatus ) {
lstrcpyn ( szCollectionName, szQueryKeyName, lstrlen(szQueryKeyName)+1 );
}
}
if ( NULL != szCollectionName ) {
// Compare found name to input name.
if ( 0 == strDirectName.CompareNoCase ( szCollectionName ) ) {
if ( TRUE == bFoundFirst ) {
rbFound = TRUE;
break;
} else {
bFoundFirst = TRUE;
}
}
} // Todo: else report message?
}
} // Todo: else report message?
} // Todo: else report message?
}
// set up for the next item in the list
dwQueryKeyNameLen = sizeof (szQueryKeyName) / sizeof (szQueryKeyName[0]);
memset (szQueryKeyName, 0, sizeof (szQueryKeyName));
if ( NULL != hKeyQuery ) {
RegCloseKey( hKeyQuery );
hKeyQuery = NULL;
}
if ( NULL != szCollectionName ) {
G_FREE ( szCollectionName );
szCollectionName = NULL;
uiCollectionNameLen = 0;
}
dwQueryIndex++;
}
} else {
dwStatus = ERROR_INVALID_PARAMETER;
}
if ( NULL != szCollectionName ) {
G_FREE ( szCollectionName );
szCollectionName = NULL;
uiCollectionNameLen = 0;
}
if ( NULL != hKeyQuery ) {
RegCloseKey( hKeyQuery );
hKeyQuery = NULL;
}
return dwStatus;
}
BOOL
CSmLogService::IsWindows2000Server ( void )
{
if ( 5 == m_OSVersion.dwMajorVersion && 2195 == m_OSVersion.dwBuild ) {
return TRUE;
}
return FALSE;
}
BOOL
CSmLogService::CanAccessWbemRemote()
{
HRESULT hr;
IWbemLocator *pLocator = NULL;
IWbemServices* pWbemServices = NULL;
LPCWSTR szRoot[2] = { L"root\\perfmon",
L"root\\wmi"
};
LPCWSTR szMask = L"\\\\%s\\%s";
BSTR bszClass = SysAllocString(L"SysmonLog");
BSTR bszNamespace = NULL;
LPWSTR buffer = NULL;
DWORD dwBufLen;
hr = CoCreateInstance(
CLSID_WbemLocator,
0,
CLSCTX_INPROC_SERVER,
IID_IWbemLocator,
(LPVOID*)&pLocator );
if (!SUCCEEDED(hr)) {
goto Cleanup;
}
if ( !GetMachineName().IsEmpty()) {
dwBufLen = max(wcslen(szRoot[0]), wcslen(szRoot[1])) +
GetMachineName().GetLength() +
wcslen( szMask );
buffer = new WCHAR[dwBufLen];
if ( buffer == NULL ){
hr = ERROR_OUTOFMEMORY;
goto Cleanup;
}
}
for (int i = 0; i < 2; i++) {
if (bszNamespace) {
SysFreeString(bszNamespace);
bszNamespace = NULL;
}
if (buffer) {
swprintf( buffer, szMask, GetMachineName(), szRoot[i] );
bszNamespace = SysAllocString( buffer );
}
else {
bszNamespace = SysAllocString(szRoot[i]);
}
hr = pLocator->ConnectServer(
bszNamespace,
NULL,
NULL,
NULL,
0,
NULL,
NULL,
&pWbemServices);
if (SUCCEEDED(hr)) {
break;
}
}
Cleanup:
if (buffer) {
delete [] buffer;
}
if (bszNamespace) {
SysFreeString(bszNamespace);
}
if (pLocator) {
pLocator->Release();
}
if (pWbemServices) {
pWbemServices->Release();
}
m_hWbemAccessStatus = hr;
if (SUCCEEDED(hr)) {
return TRUE;
}
else {
return FALSE;
}
}