lkml.org 
[lkml]   [2005]   [Aug]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: BSD jail
On 8/13/05, Serge E. Hallyn <serue@us.ibm.com> wrote:
> The latest version (which is still quite old) is at
> http://www.sf.net/projects/linuxjail and does have ipv6 support. The last
> time I submitted it, Christoph had objected to the way the networking was
> done in general. I've tried twice to float a generalized "per-process
> network namespaces" patch, but haven't really found a good approach.
>
> I suspect that the best approach would be to take the linux-vserver
> ngnet implementation and convert it to a standalone network namespace
> plus virtual network device implementation. Do you care to give this
> a try?
>
> thanks,
> -serge

Why would you want a virtual network device implementation? The whole
point of jail()
is a replacement for chroot() for housing untrusted root processes in
a lightweight
manner as reasonable. I think in one way at least, I have restricted the manner
of jail behavior better than the current linuxjail, by turning off
capabilities rather than
blocking mknod(), mount(), etc.

I do like the idea of patching in through LSM, however not everything
can be done there.
In particular, I could escape from the jail as implemented there by a
classic chroot()
trick.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-08-13 18:35    [W:0.493 / U:0.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site