windows-server-2003/net/wlbs/nlbmgr/provider/sqlwmisample.txt

FROM: nt\base\cluster\mgmt\cluscfg\server\cenumcluscfgipaddresses.cpp

HRESULT
CEnumClusCfgIPAddresses::HrGetAdapterConfiguration(
    IWbemClassObject * pNetworkAdapterIn
    )
{
    TraceFunc( "" );

    HRESULT                 hr = S_OK;
    BSTR                    bstrQuery = NULL;
    BSTR                    bstrWQL = NULL;
    VARIANT                 var;
    WCHAR                   sz[ 256 ];
    IEnumWbemClassObject *  pConfigurations = NULL;
    ULONG                   ulReturned;
    IWbemClassObject *      pConfiguration = NULL;
    int                     cFound = 0;
    BSTR                    bstrAdapterName = NULL;
    int                     idx;

    VariantInit( &var );

    bstrWQL = TraceSysAllocString( L"WQL" );
    if ( bstrWQL == NULL )
    {
        goto OutOfMemory;
    } // if:

    hr = THR( HrGetWMIProperty( pNetworkAdapterIn, L"DeviceID", VT_BSTR, &var ) );
    if ( FAILED( hr ) )
    {
        goto Cleanup;
    } // if:

    _snwprintf( sz, ARRAYSIZE( sz ), L"Associators of {Win32_NetworkAdapter.DeviceID='%s'} where AssocClass=Win32_NetworkAdapterSetting", var.bstrVal );

    bstrQuery = TraceSysAllocString( sz );
    if ( bstrQuery == NULL )
    {
        goto OutOfMemory;
    } // if:

    VariantClear( &var );

    hr = THR( HrGetWMIProperty( pNetworkAdapterIn, L"NetConnectionID", VT_BSTR, &var ) );
    if ( FAILED( hr ) )
    {
        goto Cleanup;
    } // if:

    bstrAdapterName = TraceSysAllocString( var.bstrVal );
    if ( bstrAdapterName == NULL )
    {
        goto OutOfMemory;
    } // if:

    hr = THR( m_pIWbemServices->ExecQuery( bstrWQL, bstrQuery, WBEM_FLAG_FORWARD_ONLY, NULL, &pConfigurations ) );
    if ( FAILED( hr ) )
    {
        STATUS_REPORT_STRING(
                TASKID_Major_Find_Devices,
                TASKID_Minor_WMI_NetworkAdapterSetting_Qry_Failed,
                IDS_ERROR_WMI_NETWORKADAPTERSETTINGS_QRY_FAILED,
                bstrAdapterName,
                hr
                );
        goto Cleanup;
    } // if:

    for ( idx = 0; ; idx++ )
    {
        hr = pConfigurations->Next( WBEM_INFINITE, 1, &pConfiguration, &ulReturned );
        if ( ( hr == S_OK ) && ( ulReturned == 1 ) )
        {
            //
            //  KB: 25-AUG-2000 GalenB
            //
            //  WMI only supports one configuration per adapter!
            //
            Assert( idx < 1 );

            VariantClear( &var );

            hr = THR( HrGetWMIProperty( pConfiguration, L"IPEnabled", VT_BOOL, &var ) );
            if ( FAILED( hr ) )
            {
                goto Cleanup;
            } // if:

            //
            //  If this configuration is not for TCP/IP then skip it.
            //
            if ( ( var.vt != VT_BOOL ) || ( var.boolVal != VARIANT_TRUE ) )
            {
                hr = S_FALSE;
                STATUS_REPORT_STRING( TASKID_Major_Find_Devices, TASKID_Minor_Non_Tcp_Config, IDS_WARNING__NON_TCP_CONFIG, bstrAdapterName, hr );
                continue;
            } // if:

            hr = STHR( HrSaveIPAddresses( bstrAdapterName, pConfiguration ) );
            if ( FAILED( hr ) )
            {
                goto Cleanup;
            } // if:

            //
            //  KB: 24-AUG-2000 GalenB
            //
            //  If any configuration returns S_FALSE then we skip.
            //
            if ( hr == S_FALSE )
            {
                pConfiguration->Release();
                pConfiguration = NULL;
                continue;
            } // if:

            cFound++;
            pConfiguration->Release();
            pConfiguration = NULL;
        } // if:
        else if ( ( hr == S_FALSE ) && ( ulReturned == 0 ) )
        {
            hr = S_OK;
            break;
        } // else if:
        else
        {
            STATUS_REPORT_STRING( TASKID_Major_Find_Devices, TASKID_Minor_WQL_Qry_Next_Failed, IDS_ERROR_WQL_QRY_NEXT_FAILED, bstrQuery, hr );
            goto Cleanup;
        } // else:
    } // for:

    //
    //  If we didn't find any valid configurations then we should return S_FALSE
    //  to tell the caller to ingore that adpater.
    //
    if ( cFound == 0 )
    {
        hr = S_FALSE;
        STATUS_REPORT_STRING( TASKID_Major_Find_Devices, TASKID_Minor_No_Valid_TCP_Configs, IDS_WARNING_NO_VALID_TCP_CONFIGS, bstrAdapterName, hr );
    } // if:

    goto Cleanup;

OutOfMemory:

    hr = THR( E_OUTOFMEMORY );
    STATUS_REPORT( TASKID_Major_Find_Devices, TASKID_Minor_HrGetAdapterConfiguration, IDS_ERROR_OUTOFMEMORY, hr );

Cleanup:

    VariantClear( &var );

    TraceSysFreeString( bstrQuery );
    TraceSysFreeString( bstrWQL );
    TraceSysFreeString( bstrAdapterName );

    if ( pConfiguration != NULL )
    {
        pConfiguration->Release();
    } // if:

    if ( pConfigurations != NULL )
    {
        pConfigurations->Release();
    } // if:

    HRETURN( hr );

} //*** CEnumClusCfgIPAddresses::HrGetAdapterConfiguration