On Fri, Jan 10, 2014 at 10:15:28AM +0800, Yin Kangkai wrote:
> On 2014-01-10, 09:52 +0800, Yin Kangkai wrote:
> > On 2014-01-10, 09:46 +0800, Schaufler, Casey wrote:
> > > > Yep, as long as the user session processes are spawned though
> > > > [email protected], they've been set "User" label already.
> > > 
> > > So if we started the sshd service with the User label that should be 
> > > fine, too.
> > >  
> > 
> > Yes exactly. I can verify that.
> > 
> > So the problem here I see has nothing to do with systemd. It's su and
> > ssh (and sdbd) give you the shell, and they're not SMACK aware. That's
> > my understanding.
> > 
> > As Casey said, we might fix this by assigning User label to sdbd
> > (which comes from system-server.service) and sshd.service, let me
> > verify that.
> 
> Verified, it works (for both sdbd and ssh)
> 
>   $ ssh [email protected]
>   Warning: Permanently added '192.168.129.3' (ECDSA) to the list of known 
> hosts.
>   Password: 
>   Welcome to Tizen
>   root:~> id
>   uid=0(root) gid=0(root) 
> groups=0(root),29(audio),6505(pulse-access),6506(pulse-rt) context=User

As I understand, if the user is root, its context should be "System"?

>   root:~> set_usb_debug.sh --sdb
>   root:~> Connection to 192.168.129.3 closed.
>   [x86_64] kai@kai-gentoo ~/Downloads $ ~/bin/sdb shell
>   sh-4.2$ id
>   uid=5100(developer) gid=5100(developer) 
> groups=5100(developer),1004(input),6509(app_logging),6527(sys_logging) 
> context=User
>   sh-4.2$ su
>   Password: 
>   bash-4.2# id
>   uid=0(root) gid=0(root) 
> groups=0(root),29(audio),6505(pulse-access),6506(pulse-rt) context=User

And su should change user context too? Otherwise, it limit to "User"
priviledges rather than "System".

>   bash-4.2#
> 
> Did not verify other side impact though (e.g. system_server being in User 
> domain).

Not understand, you're trying to start system_server in "User" domain?

--
Thanks,
Chengwei

> 
> /Kangkai
> _______________________________________________
> Dev mailing list
> [email protected]
> https://lists.tizen.org/listinfo/dev

Attachment: signature.asc
Description: Digital signature

_______________________________________________
Dev mailing list
[email protected]
https://lists.tizen.org/listinfo/dev

Reply via email to