samba - Jan 2021 - libsmbclient support for ? < > \ : * | " characters possible?

Hello everybody,

Can we get samba/libsmbclient to support characters that are supporet on 
Linux filesystems like ? < > \ : * | "

I am having a few solutions where we use samba/smb as the communication 
layer between ext4/nfs/samba/nextcloud with inotify support ect.

Nextcloud is using php-smbclient that is talking to libsmbclient and is 
not creating exceptions when reading files that have characters that are 
not supported by native windows, which I understand but I am not having 
any Windows systems at play here.

Kind regards,

Jelle de Jong

On 02/01/2021 16:26, Jelle de Jong via samba wrote:
> Hello everybody,
>
> Can we get samba/libsmbclient to support characters that are supporet 
> on Linux filesystems like ? < > \ : * | "
Problem is that all of those are illegal characters in Windows filenames 
and Samba is an emulation of SMB, so they also need to be illegal on 
Samba. I cannot see how Samba could make them legal when connected to by 
a Linux machine, but illegal when connected to by a Windows machine, I 
mean how would Samba easily know what was connecting ?

Rowland

I don't know the status of this but look like developers are at least
thinking in this use case.

https://wiki.samba.org/index.php/SMB3-Linux#No_reserved_path_characters


On Sat, Jan 2, 2021, 12:39 PM Jelle de Jong via samba <samba at
lists.samba.org>
wrote:
> Hello everybody,
>
> Can we get samba/libsmbclient to support characters that are supporet on
> Linux filesystems like ? < > \ : * | "
>
> I am having a few solutions where we use samba/smb as the communication
> layer between ext4/nfs/samba/nextcloud with inotify support ect.
>
> Nextcloud is using php-smbclient that is talking to libsmbclient and is
> not creating exceptions when reading files that have characters that are
> not supported by native windows, which I understand but I am not having
> any Windows systems at play here.
>
> Kind regards,
>
> Jelle de Jong
>
> --
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On Sat, Jan 02, 2021 at 05:26:58PM +0100, Jelle de Jong via samba
wrote:
>Hello everybody,
>
>Can we get samba/libsmbclient to support characters that are supporet 
>on Linux filesystems like ? < > \ : * | "
>
>I am having a few solutions where we use samba/smb as the 
>communication layer between ext4/nfs/samba/nextcloud with inotify 
>support ect.
>
>Nextcloud is using php-smbclient that is talking to libsmbclient and 
>is not creating exceptions when reading files that have characters 
>that are not supported by native windows, which I understand but I am 
>not having any Windows systems at play here.
libsmbclient supports the full UNIX character set
with SMB1+POSIX extensions.

So right now you can do this but you'd have to switch
back to SMB1+POSIX on the server, which isn't
recommended but will give you complete full
POSIX character set fidelity between libsmbclient
and Samba today.

Once we get SMB2+POSIX extensions done for SMB2
(after the server VFS rewrite) then a new Samba
smbd + new libsmbclient will support this natively.

Note that you'll won't get this to a Windows
server as these characters are reserved for
a Windows SMB implementation.