[Samba] locking with samba and getting read-only to work with libreoffice

[Rowland penny]

On 08/02/2021 15:35, Jelle de Jong via samba wrote:
> Hello everybody,
>
> I been experiencing some challenges with samba and locking with 
> LibreOffice.
>
> The expected behaviour is that userA can open an file with LibreOffice 
> (that also creates its own lockfile) and that userB can open the same 
> file gets a warning that the file is in use (this is working) then 
> gets the option to read-only of make a copy, but this does not work. 
> The file becomes impossible to read to other users when it gets 
> opened. I do not know why or how....
>
> The file manger is also creating errors when opening a file with 
> LibreOffice but try to make a copy from an other system on the share.
>
> I get error like:
>
> Data could not be read from file.
> Error splicing file: Permission denied
>
> smbstatus:
> 1716515      1376000004  DENY_NONE  0x12019f    RDWR       NONE 
> /srv/storage/shares   Iedereen/shared_file_test_01.docx   Mon Feb 8 
> 16:28:28 2021
>
> I tried some of the options bellow but no luck...
>
> #       oplocks = no
> #       level2 oplocks = no
>         veto oplock files = /.~lock*/
>
> #       oplocks = no
> #       locking = no
> #       strict locking = no
> #       blocking locks = no
> #       kernel oplocks = no
>         posix locking = no
>
> # testparm --version
> Version 4.12.3
>
> Can somebody help me out? Can you get LibreOffice read-only access 
> working on opened files on your samba shares?
>
> Kind regards,
>
> Jelle de Jong
>

As far as I am aware oplocks should work, so it could be a LibreOffice 
problem, but it is hard to say because you have done what a lot of 
people do, they give us very little to go on. You have given us 
fragments of your smb.conf, please post your entire smb.conf , it may help.

Rowland