调用的WMI类

Question

我试图调用下面的方法的方法：https://msdn.microsoft.com/en-us/library/dn469242(v=vs.85).aspx

相应的PowerShell是：

wmic /namespace:\\ROOT\Microsoft\Windows\DesiredStateConfiguration class MSFT_DSCLocalConfigurationManager call GetConfigurationStatus

我不能完全弄清楚如何做到这一点正确使用go-ole。这是迄今为止我所拥有的。它失败：invoke_test.go:47: wmi: error calling method GetConfiguration: Exception occurred. Generic failure)

当我尝试使用GetConfigurationStatus代替GetConfiguration，我得到了Unknown name错误，所以我怀疑这个方法存在我只是调用它错了。

package wmi 

import (
    "testing" 

    "github.com/go-ole/go-ole" 
    "github.com/go-ole/go-ole/oleutil" 
) 

func TestMethod(t *testing.T) { 
    err := ole.CoInitializeEx(0, ole.COINIT_MULTITHREADED) 
    if err != nil { 
     t.Fatal(err) 
    } 

    unknown, err := oleutil.CreateObject("WbemScripting.SWbemLocator") 
    if err != nil { 
     t.Fatal(err) 
    } 
    defer unknown.Release() 

    wmi, err := unknown.QueryInterface(ole.IID_IDispatch) 
    if err != nil { 
     t.Fatal(err) 
    } 
    defer wmi.Release() 

    serviceRaw, err := oleutil.CallMethod(wmi, "ConnectServer", nil, `ROOT\Microsoft\Windows\DesiredStateConfiguration`) 
    if err != nil { 
     t.Fatal(err) 
    } 
    service := serviceRaw.ToIDispatch() 
    defer serviceRaw.Clear() 

    typeName := "MSFT_DSCLocalConfigurationManager" 
    typeRaw, err := oleutil.CallMethod(service, "Get", typeName) 
    if err != nil { 
     t.Fatalf("wmi: error fetching type %v: %v", typeName, err) 
    } 
    typeResult := typeRaw.ToIDispatch() 
    defer typeRaw.Clear() 

    methodName := "GetConfiguration" 
    methodRaw, err := oleutil.CallMethod(typeResult, methodName) 
    if err != nil { 
     t.Fatalf("wmi: error calling method %v: %v", methodName, err) 
    } 
    item := methodRaw.ToIDispatch() 
    defer methodRaw.Clear() 
    _ = item 
} 

Answer 1

运行WBEMTEST.EXE作为管理员，您可以打开MSFT_DSCLocalConfigurationManager类，并使用显示MOF看到它的类定义：

[ClassVersion("1.0.0"), locale(1033), dynamic: ToInstance, provider("dsccore"): ToInstance] 
class MSFT_DSCLocalConfigurationManager 
{ 
    [implemented, static: DisableOverride ToSubClass] uint32 SendConfiguration([In, Octetstring: DisableOverride ToSubClass] uint8 ConfigurationData[], [In] boolean force); 
    [implemented, static: DisableOverride ToSubClass] uint32 SendConfigurationApply([In, Octetstring: DisableOverride ToSubClass] uint8 ConfigurationData[], [In] boolean force); 
    [implemented, static: DisableOverride ToSubClass] uint32 GetConfiguration([In, Octetstring: DisableOverride ToSubClass] uint8 configurationData[], [Stream: DisableOverride ToSubClass, EmbeddedInstance("OMI_BaseResource"): ToSubClass, Out] OMI_BaseResource configurations[]); 
    [implemented, static: DisableOverride ToSubClass] uint32 TestConfiguration([In, Octetstring: DisableOverride ToSubClass] uint8 configurationData[], [Out] boolean InDesiredState, [Out, EmbeddedInstance("MSFT_ResourceInDesiredState"): ToSubClass] MSFT_ResourceInDesiredState ResourcesInDesiredState[], [Out, EmbeddedInstance("MSFT_ResourceNotInDesiredState"): ToSubClass] MSFT_ResourceNotInDesiredState ResourcesNotInDesiredState[]); 
    [implemented, static: DisableOverride ToSubClass] uint32 ApplyConfiguration([In] boolean force); 
    [implemented, static: DisableOverride ToSubClass] uint32 SendMetaConfigurationApply([In, Octetstring: DisableOverride ToSubClass] uint8 ConfigurationData[]); 
    [implemented, static: DisableOverride ToSubClass] uint32 GetMetaConfiguration([Out, EmbeddedInstance("MSFT_DSCMetaConfiguration"): ToSubClass] MSFT_DSCMetaConfiguration MetaConfiguration); 
    [implemented, static: DisableOverride ToSubClass] uint32 RollBack([In] uint8 configurationNumber); 
    [implemented, static: DisableOverride ToSubClass] uint32 PerformRequiredConfigurationChecks([In] uint32 Flags); 
    [implemented, static: DisableOverride ToSubClass] uint32 StopConfiguration([In] boolean force); 
    [implemented, static: DisableOverride ToSubClass] uint32 GetConfigurationStatus([In] uint32 Flags, [Stream: DisableOverride ToSubClass, EmbeddedInstance("MSFT_DSCConfigurationStatus"): ToSubClass, Out] MSFT_DSCConfigurationStatus configurationStatus[]); 
    [implemented, static: DisableOverride ToSubClass] uint32 SendConfigurationApplyAsync([In, Octetstring: DisableOverride ToSubClass] uint8 ConfigurationData[], [In] boolean force, [In] string jobId); 
    [implemented, static: DisableOverride ToSubClass] uint32 GetConfigurationResultOutput([In] string jobId, [In, Octetstring: DisableOverride ToSubClass] uint8 resumeOutputBookmark[], [Out, Stream: DisableOverride ToSubClass, EmbeddedInstance("MSFT_DSCConfigurationOutput"): ToSubClass] MSFT_DSCConfigurationOutput output[]); 
    [implemented, static: DisableOverride ToSubClass] uint32 RemoveConfiguration([In] uint32 Stage, [In] boolean Force); 
    [implemented, static: DisableOverride ToSubClass] uint32 ResourceGet([In] string ResourceType, [In] string ModuleName, [In, Octetstring: DisableOverride ToSubClass] uint8 resourceProperty[], [Stream: DisableOverride ToSubClass, EmbeddedInstance("OMI_BaseResource"): ToSubClass, Out] OMI_BaseResource configurations[]); 
    [implemented, static: DisableOverride ToSubClass] uint32 ResourceSet([In] string ResourceType, [In] string ModuleName, [In, Octetstring: DisableOverride ToSubClass] uint8 resourceProperty[], [Out] boolean RebootRequired); 
    [implemented, static: DisableOverride ToSubClass] uint32 ResourceTest([In] string ResourceType, [In] string ModuleName, [In, Octetstring: DisableOverride ToSubClass] uint8 resourceProperty[], [Out] boolean InDesiredState); 
}; 

GetConfiguration是用于返回电流的方法配置文件，而不是上次DSC运行的状态。您可能正在使用较旧版本的DSC，请确保$ psversiontable在powershell中至少显示5.0.10018.0。

WBEMTEST.EXE还将让你使用IwbemServices下面来执行（你具有上述相似的代码）的方法

，它示出了输出参数的类型的：

[abstract] 
class __PARAMETERS 
{ 
    [Stream: DisableOverride ToSubClass, EmbeddedInstance("MSFT_DSCConfigurationStatus"): ToSubClass, Out, ID(1): DisableOverride ToInstance] MSFT_DSCConfigurationStatus configurationStatus[] = { 
instance of MSFT_DSCConfigurationStatus 
{ 
    DurationInSeconds = 33; 
    HostName = "GBRAY02";