[Samba] DFS links don't work anymore on Mac clients since 4.17

[Jeremy Allison]

On Tue, Dec 20, 2022 at 06:30:01PM +0100, Alban Rodriguez via samba wrote:
>Hello,
>
>Updating from Samba 4.16.5 to Samba 4.17.3 we just realized DFS links are not resolved anymore when accessing the DFS root shares from a Mac.
>As a consequence, the destination shares just appear empty
>
>It still works on a Windows client though.
>
>Our server runs Ubuntu Linux 20.04 LTS, Samba built from source and configured as an AD domain member.
>Don’t know if it matters but we are not using the vfs_fruit module (maybe we should …)
>
>Nothing striking in the client log file aside from a «  Cannot get attribute from EA on file » error but not sure it’s related.
>
>Going back to Samba 4.16.5 and it’s working again.
>
>Has anybody else had the same ? I’ve probably missed something in recent changes but I couldn’t find what …

Can you log a bug an upload a wireshark trace from
the Mac, and attach your smb.conf file please ?

That's the only way we'll be able to track this
one down.

Thanks !