samba - Dec 2022 - DFS links don't work anymore on Mac clients since 4.17

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 ?

Thanks
Alban

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 !