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How do you request WMI namespaces?

How do you request WMI namespaces?

So, I know about WMI namespaces because I read that they exit, and I know that I can connect to say:

root\cimv2

My question is, if I don’t know what namespaces were there, how do I access the available namespaces?

I just want to go explore WMI and not look for every namespace.

I am using WBEMtest, but I will take something, .NET, winapi.h that you have.

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6 answers

To list all namespaces, you must first connect to the namespace root, query for all instances, __NAMESPACEand repeat the process recursively for each instance.

check these samples

Delphi

procedure  GetListWMINameSpaces(const RootNameSpace:String;const List :TStrings;ReportException:Boolean=True);//recursive function
var
  objSWbemLocator : OleVariant;
  objWMIService   : OleVariant;
  colItems        : OLEVariant;
  colItem         : OLEVariant;
  oEnum           : IEnumvariant;
  iValue          : LongWord;
  sValue          : string;
begin
 try
  objSWbemLocator := CreateOleObject('WbemScripting.SWbemLocator');
  objWMIService   := objSWbemLocator.ConnectServer(wbemLocalhost, RootNameSpace, '', '');
  colItems        := objWMIService.InstancesOf('__NAMESPACE');
  oEnum           := IUnknown(colItems._NewEnum) as IEnumVariant;
  while oEnum.Next(1, colItem, iValue) = 0 do
  begin
    sValue:=VarStrNull(colItem.Name);
    colItem:=Unassigned;
    List.Add(RootNameSpace+'\'+sValue);
    GetListWMINameSpaces(RootNameSpace+'\'+sValue,List);//recursive
  end;
 except
     if ReportException then
     raise;
 end;
end;

VBScript

strComputer = "."
Call EnumNameSpaces("root")

Sub EnumNameSpaces(strNameSpace)
    WScript.Echo strNameSpace
    Set objWMIService = GetObject("winmgmts:\\" & strComputer & _
        "\" & strNameSpace)
    Set colNameSpaces = objWMIService.InstancesOf("__NAMESPACE")
    For Each objNameSpace In colNameSpaces
        Call EnumNameSpaces(strNameSpace & "\" & objNameSpace.Name)
    Next
End Sub
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, , , PowerShell :

Get-WMIObject -namespace "root" -class "__Namespace" | Select Name
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Name () server # ( LINQPad):

ManagementClass nsClass =
    new ManagementClass(
        new ManagementScope(@"\\server\root"),
        new ManagementPath("__namespace"),
        null);

foreach(ManagementObject ns in nsClass.GetInstances())
{
    ns["Name"].Dump();
}

, Dump ; LINQPad, - Name.

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Python ( WMI pyWin32):

import wmi
c = wmi.WMI (moniker='//./root')
wql = "SELECT * FROM __NAMESPACE"

for __NAMESPACE in c.query(wql):
    print __NAMESPACE.Name
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Get-CimInstance -Query "SELECT * FROM __NAMESPACE" -Namespace "root" powershell.

Windows Nano Server

0

VBScript, Namespaces root.

script

On Error Resume Next
strComputer = "." 
Wscript.Echo "-----------------------------------"
Wscript.Echo "Namespaces"
Wscript.Echo "-----------------------------------"
Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root") 
Set colItems = objWMIService.ExecQuery( _
    "SELECT * FROM __NAMESPACE",,48) 
For Each objItem in colItems 
    Wscript.Echo "Name: " & objItem.Name
Next


Microsoft (R) Windows Script Host Version 5.8
Copyright (C) Microsoft Corporation. All rights reserved.

-----------------------------------
Namespaces
-----------------------------------
Name: subscription
Name: DEFAULT
Name: MicrosoftWmiNet
Name: CIMV2
Name: Cli
Name: nap
Name: MicrosoftIISv2
Name: SECURITY
Name: SecurityCenter2
Name: RSOP
Name: WebAdministration
Name: WMI
Name: OpenHardwareMonitor
Name: directory
Name: Policy
Name: Interop
Name: ServiceModel
Name: SecurityCenter
Name: Microsoft
Name: aspnet
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