samba - May 2021 - GPO created via samba-tool don't Copy or Backup in RSAT (invalid directory)

Hello.

I am facing a problem with GPO managing on the Samba side.

When I create a GPO named "test" using the RSAT on Windows, and make a
modification in it (I did : Computer Configuration -> Administrative 
Templates -> System -> Logon ?Always Wait for the Network at Computer 
Startup and Logon? to ?Enabled?). I CAN Copy and Backup this GPO in RSAT 
(right clic on GPO and "Copy", right clic on "Group Policy
Objects" and
Paste).

On the samba server, using "samba-tool gpo backup/restore", I backup
and
restore this "test" GPO under another name, "blabla" for
example.
  samba-tool gpo backup {XXXXX-YYYYYY-ZZZZZZ-AAAAA-BBBB}
  samba-tool gpo restore blabla /tmp/...

Back in the RSAT on Windows, this new "blabla" GPO can NOT be Copied
or
Backuped. The error is "invalid directory".

I CLOSE THE RSAT.

On the samba server, I go in the "test" GPO directory (in 
"/home/sysvol/domseth.ac-test.fr/Policies/{ID_TEST_GPO}") and do :
  getfattr -d -n user.DOSATTRIB -R . > ../test.attrs

Then I go in the directory of the "blabla" GPO and do :
   setfattr --restore=../test.attrs

Then I return on the RSAT and now I can successful Copy and Backup 
"blabla" GPO.

Why this problem ? Am I doing something wrong ?

root at dc1:~# dpkg -l |grep samba
ii  python3-samba                        2:4.11.6+dfsg-0ubuntu1.6 
amd64        Python 3 bindings for Samba
ii  samba                                2:4.11.6+dfsg-0ubuntu1.6 
amd64        SMB/CIFS file, print, and login server for Unix
ii  samba-common                         2:4.11.6+dfsg-0ubuntu1.6    all 
          common files used by both the Samba server and client
ii  samba-common-bin                     2:4.11.6+dfsg-0ubuntu1.6 
amd64        Samba common files used by both the server and the client
ii  samba-dsdb-modules:amd64             2:4.11.6+dfsg-0ubuntu1.6 
amd64        Samba Directory Services Database
ii  samba-libs:amd64                     2:4.11.6+dfsg-0ubuntu1.6 
amd64        Samba core libraries
ii  samba-vfs-modules:amd64              2:4.11.6+dfsg-0ubuntu1.6 
amd64        Samba Virtual FileSystem plugins

root at dc1:~# cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=20.04
DISTRIB_CODENAME=focal
DISTRIB_DESCRIPTION="Ubuntu 20.04.2 LTS"

And Windows 10.20H2.


Thank you, regards,
  Klaas

I've noticed that the GPO restored by "samba-tool gpo restore" is
empty,
it has not been restored completely.

Actually, the modification I made has not been restored : Computer 
Configuration -> Strategies -> Administrative Templates -> System ->
Logon ?Always Wait for the Network at Computer Startup and Logon? to 
?Enabled?


Le 19/05/2021 ? 12:30, Klaas TJEBBES via samba a ?crit?:
> Hello.
> 
> I am facing a problem with GPO managing on the Samba side.
> 
> When I create a GPO named "test" using the RSAT on Windows, and
make a
> modification in it (I did : Computer Configuration -> Administrative 
> Templates -> System -> Logon ?Always Wait for the Network at Computer
> Startup and Logon? to ?Enabled?). I CAN Copy and Backup this GPO in RSAT 
> (right clic on GPO and "Copy", right clic on "Group Policy
Objects" and
> Paste).
> 
> On the samba server, using "samba-tool gpo backup/restore", I
backup and
> restore this "test" GPO under another name, "blabla"
for example.
>  ?samba-tool gpo backup {XXXXX-YYYYYY-ZZZZZZ-AAAAA-BBBB}
>  ?samba-tool gpo restore blabla /tmp/...
> 
> Back in the RSAT on Windows, this new "blabla" GPO can NOT be
Copied or
> Backuped. The error is "invalid directory".
> 
> I CLOSE THE RSAT.
> 
> On the samba server, I go in the "test" GPO directory (in 
> "/home/sysvol/domseth.ac-test.fr/Policies/{ID_TEST_GPO}") and do
:
>  ?getfattr -d -n user.DOSATTRIB -R . > ../test.attrs
> 
> Then I go in the directory of the "blabla" GPO and do :
>  ? setfattr --restore=../test.attrs
> 
> Then I return on the RSAT and now I can successful Copy and Backup 
> "blabla" GPO.
> 
> Why this problem ? Am I doing something wrong ?
> 
> root at dc1:~# dpkg -l |grep samba
> ii? python3-samba??????????????????????? 2:4.11.6+dfsg-0ubuntu1.6 
> amd64??????? Python 3 bindings for Samba
> ii? samba??????????????????????????????? 2:4.11.6+dfsg-0ubuntu1.6 
> amd64??????? SMB/CIFS file, print, and login server for Unix
> ii? samba-common???????????????????????? 2:4.11.6+dfsg-0ubuntu1.6??? all 
>  ???????? common files used by both the Samba server and client
> ii? samba-common-bin???????????????????? 2:4.11.6+dfsg-0ubuntu1.6 
> amd64??????? Samba common files used by both the server and the client
> ii? samba-dsdb-modules:amd64???????????? 2:4.11.6+dfsg-0ubuntu1.6 
> amd64??????? Samba Directory Services Database
> ii? samba-libs:amd64???????????????????? 2:4.11.6+dfsg-0ubuntu1.6 
> amd64??????? Samba core libraries
> ii? samba-vfs-modules:amd64????????????? 2:4.11.6+dfsg-0ubuntu1.6 
> amd64??????? Samba Virtual FileSystem plugins
> 
> root at dc1:~# cat /etc/lsb-release
> DISTRIB_ID=Ubuntu
> DISTRIB_RELEASE=20.04
> DISTRIB_CODENAME=focal
> DISTRIB_DESCRIPTION="Ubuntu 20.04.2 LTS"
> 
> And Windows 10.20H2.
> 
> 
> Thank you, regards,
>  ?Klaas
> 
> 
-- 
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- Klaas TJEBBES
- Equipe EOLE
- DSI
- Dijon

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