Writing a Windows Explorer plugin that uses a Vendor Specific FSCTL to access extra metadata about files from Samba

Ralph Boehme slow at samba.org
Wed Sep 25 20:35:50 UTC 2019

On 9/25/19 12:15 PM, Richard Sharpe wrote:
> On Wed, Sep 25, 2019 at 12:03 PM Ralph Boehme <slow at samba.org> wrote:
>> On 9/25/19 11:53 AM, Richard Sharpe via samba-technical wrote:
>>> Hi folks,
>>> Over the last few weeks, as a part-time activity, I have been writing
>>> a Windows Explorer plugin that uses a Vendor Specific FSCTL to
>>> communicate with a Samba VFS module to retrieve some of the plethora
>>> of extra metadata we have in our file system.
>>> It also allows us to set some of that metadata as well.
>>> Since knowing that something can be done is often the most important
>>> step in doing that thing, I thought I would mention it.
>>> I hope to find the time to provide a tutorial on this subject as well,
>>> probably on the Samba Wiki.
>> yes, please share as much as you can, ideally the source code, but some
>> tutorial on the wiki would also be nice. :)
> My Windows UI skills suck, so the resulting UI is not great, but it
> does everything that is needed.
> I plan on documenting the calls to be made, the library I used, code
> snippets on both the Windows side and Samba VFS module side as well as
> hints on the actual workflow.

cool, thanks a lot! :)


Ralph Boehme, Samba Team                https://samba.org/
Samba Developer, SerNet GmbH   https://sernet.de/en/samba/
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