samba - Jun 2010 - Preventing characters in filenames...

Is there a way of preventing certain characters being used in filenames as saved
by Samba? Basically I wish to prevent prevent files from being saved with the
characters ( ) * & in the name. Is this possible in Samba?

Thanks, qt4.

On 06/22/2010 05:03 PM, Rod wrote:
> Is there a way of preventing certain characters being used in filenames as
saved
> by Samba? Basically I wish to prevent prevent files from being saved with
the
> characters ( ) * & in the name. Is this possible in Samba?
> 
> Thanks, qt4.
Yes, this is possible - you would need to write a VFS module that
filters filenames and that substitutes appropriate alternate characters
(or just deletes the offending character).

It is not possible without writing a VFS module though. Such a module
does not exist today.

Samba does not write filenames, it simply passes them through to the
operating system from the CIFS client.  The VFS layer allows
interception of system calls.  The module would need to intercept the
create() system call, procecss the filename, and then pass the filtered
name through to the system function call.

The bigger question is how this might be implemented. How do you propose
to handle the undesirable characters in a manner that is portable across
system locales that use multi-byte names.

- John T.

Ehmmm... personally I would not try to fix the name, but return an error...

Op 23-6-2010 3:39, John H Terpstra schreef:
> On 06/22/2010 05:03 PM, Rod wrote:
>    
>> Is there a way of preventing certain characters being used in filenames
as saved
>> by Samba? Basically I wish to prevent prevent files from being saved
with the
>> characters ( ) *&  in the name. Is this possible in Samba?
>>
>> Thanks, qt4.
>>      
> Yes, this is possible - you would need to write a VFS module that
> filters filenames and that substitutes appropriate alternate characters
> (or just deletes the offending character).
>
> It is not possible without writing a VFS module though. Such a module
> does not exist today.
>
> Samba does not write filenames, it simply passes them through to the
> operating system from the CIFS client.  The VFS layer allows
> interception of system calls.  The module would need to intercept the
> create() system call, procecss the filename, and then pass the filtered
> name through to the system function call.
>
> The bigger question is how this might be implemented. How do you propose
> to handle the undesirable characters in a manner that is portable across
> system locales that use multi-byte names.
>
> - John T.
>    
-- 
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