[linux-cifs-client] [cifs] permissions of mounted share (server and client both linux)

[Shirish Pargaonkar]

On Sun, Jan 11, 2009 at 2:55 AM, Harry P <reader at newsguy.com> wrote:
> Note this is a cross post here and debian.user.. the server is gentoo
> the client is debian.
>
> It's kind of a phony cross post though since I didn't think to do this
> until I'd already posted on debian user, and gentoo.user.. So its
> really a second post with the same content.  Some consider that a
> faux paux(sp?)... So please forgive with my explanation.
>
> Content:
>
> I'm using samba and cifs to mount a certain directory on a linux
> (gentoo) machine (Which will also be accessed by windows machines [but
> not yet]).
>
> On the server machine I've created the directory `projects'.  With
> permissions 755 and ownership reader:wheel
>
> This is mounted from a machine runnning debian lenny like this in
> fstab:
> (wrapped for mail at the `\')
> (Note the host name is reader .. not to be confused with user reader)
>
>  //reader/smProjects   /projects  cifs noauto,username=reader,\
>  credentials=/etc/samba/CifsCredentials,uid=reader,gid=wheel
>
> OK, with /projects share mounted on the deb machine, I attempt to copy
> a directory (oneA) of files into it with `cp -a oneA /projects'
>
> Note that the same user reader in group wheel exists on both server
> and client machines.
>
> The permissions on oneA (on client)  are 755 and the files inside are 644.
>
> When I attempt to carry out the copy action I get a slew of warnings
> like this:
>  cp: setting permissions for `./oneA/...': Permission denied
>
> The cp  is still carried out but all the files now have 744
> permissions.
>
> If I drop the -a[rchive] flag and do the cp with `cp -R' its done
> silently but the permissions still end up 744 on what are regular files
> (that were 644)
>
> Any regular files I create on the mounted share end up 744.
>
> Can I set a umask in the mount syntax or what do I need to do here to
> have the files keep the standard permissions? Why are they being changed?
>
> Postscript:
>
> I since tried slightly different mount syntax with no better results:
> original from fstab:
>
>  (wrapped for mail)
>
>  //reader/smProjects   /projects  cifs noauto,username=reader,\
>  credentials=/etc/samba/CifsCredentials,uid=reader,gid=wheel
>
> Current in fstab
>
>  //reader/smProjects   /projects  cifs noauto,username=reader,\
>  credentials=/etc/samba/CifsCredentials,uid=reader,gid=wheel,\
>  file_mode=0644,dir_mode=0755
>
> Still creating regular text files on client end up 0744.
>
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>

Yes, I think this is a problem in samba server code.  Please refer to
bug 4578 on samba bugzilla.