samba - Oct 2024 - [smb.conf] How to get "rw r r" ?

On 25.10.2024 13:25, Gilles via samba wrote:
> Hello,
> 
> On a Linux partition, I'd like new files to be created as "rw r
r".
> 
> 0133 doesn't seem to be the right mask for that pupose.
> 
> Does someone know what I should use instead?
You need create mask = 0755 (or 0644, but watch for directory
mask).  This is not like the unix umask thing, this it the
reverse of it.  Please re-read man 5 smb.conf, it is pretty
clear about this, with examples.  More, the default value is
exactly what you need.

Speaking of the X bits, these are mapped to DOS attributes,
archive/hidden/system.  For these, see `store dos attributes`
and `map system`, `map hidden` etc in smb.conf manpage.

/mjt

On 26/10/2024 15:24, Michael Tokarev wrote:
> You need create mask = 0755 (or 0644, but watch for directory
> mask).? This is not like the unix umask thing, this it the
> reverse of it.? Please re-read man 5 smb.conf, it is pretty
> clear about this, with examples.? More, the default value is
> exactly what you need.
>
> Speaking of the X bits, these are mapped to DOS attributes,
> archive/hidden/system.? For these, see `store dos attributes`
> and `map system`, `map hidden` etc in smb.conf manpage. 
Using "force create mode = 0644", a new file is still rwx r r, not rw
r
r as expected :-/

The man page 
<http://mrtg.easyco.net/easydocs/linux/man/man5/smb.conf.htm> doesn't 
include "store dos attributes".

"map system: This controls whether DOS style system files should be 
mapped to the UNIX group execute bit. Note that this requires the 
'create mask' to be set such that the group execute bit is not masked 
out (ie. it must include 010). See the parameter "create mask" for 
details. Default: map system = no

map hidden : This controls whether DOS style hidden files should be 
mapped to the UNIX world execute bit. Note that this requires the 
'create mask' to be set such that the world execute bit is not masked 
out (ie. it must include 001). See the parameter "create mask" for 
details. Default: map hidden = no"

What's the difference between "create mode" and "force create
mode"? Are
there other default options that could explain why I'm not getting the 
expected access bits?

=======rm /Backup/test.ico
======== testparm
...
[write]
; create mode = synonym for create mask
force create mode = 0644
=======systemctl reload smbd
systemctl status smbd
=======C:\> cp test.ico \\debian\write
=======ll /Backup/
-rwxr--r--? 1 nobody 9062 Oct 27 11:58 test.ico

On 26/10/2024 13:00, Rowland Penny via samba wrote:
 > It could be that the permissions are being inherited from the parent
 > directory, or if it is a mount, the mount isn't allowing the
 > permissions to change.

Could those explain why I'm still not getting rw r r?

===========root at debian:/# mount
/dev/sda1 on / type ext4 (rw,relatime,errors=remount-ro)

root at debian:/# ll /
drwxr-xr-x?? 4 nobody? 4096 Oct 27 11:58 Backup/
============