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Date: Sun, 21 Apr 2024 23:01:33 -0600
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Subject: Re: DOS namespaces, accessible/walk-able as Admin via Cygwin?
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From: Brian Inglis via Cygwin <cygwin@cygwin.com>
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Cc: Brian Inglis <Brian.Inglis@SystematicSW.ab.ca>
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On 2024-04-21 17:24, Dan Shelton via Cygwin wrote:
> On Sat, 20 Apr 2024 at 05:37, Brian Inglis via Cygwin <cygwin@cygwin.com> wrote:
>>
>> On 2024-04-19 17:09, Dan Shelton via Cygwin wrote:
>>> 1. Windows has DOS namespaces per user, or per Logon.
>>> Can anyone explain this from a Win32 API point of view how they are kept
>>> separate?
>>
>> Ask on SuperUser *NOT* SO!
> 
> I cannot follow you. What should I do?

You asked the same question on StackOverflow group and was told that was not the 
appropriate group - SuperUser is the appropriate StackOverflow group.

>>> 2. If I have Administrator rights, is there a way in /proc where I can
>>> /bin/ls -la  or /bin/find -ls all those DOS namespaces and soft links
>>> to the real devices?
>>
>> Cygwin exposes these MS Windows Executive Object Manager subsystem resource
>> objects under /proc/sys/ and object namespaces are per session under
>> /proc/sys/Sessions/ you have e.g.

>> $ ls -glo /proc/sys/Sessions/BNOLINKS/
>> total 0
>> lr--r--r-- 1 0 Apr 19 21:23 0 -> /proc/sys/BaseNamedObjects
>> lr--r--r-- 1 0 Apr 19 21:23 1 -> /proc/sys/Sessions/1/BaseNamedObjects
>>
>> so each session has its own set of BaseNamedObjects, which you can list with
>> appropriate permissions, or using a tree browser.

> Now where does the "1" in /proc/sys/Sessions/1/BaseNamedObjects come
> from? Is there a Cygwin or Win32 API for that?

It's the MS Windows session number for the first user session.
You can access them using Cygwin or MS Windows directory lookups or tree 
browsers, as I said.
Search microsoft.com for Windows sessions for details about MS Windows APIs.

>> Under MS Windows you can use Sysinternals WinObj64 to browse the hierarchy and
>> objects.
> 
> What is that?

If you do not yet know that, perhaps you should not yet be digging into these MS 
Windows Executive subsystem objects.

Some of these questions seem very abstract - are these academic questions or 
projects?

-- 
Take care. Thanks, Brian Inglis              Calgary, Alberta, Canada

La perfection est atteinte                   Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter  not when there is no more to add
mais lorsqu'il n'y a plus rien à retirer     but when there is no more to cut
                                 -- Antoine de Saint-Exupéry


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