Re: RFC: Network privilege separation.

From: Herbert Xu
Date: Thu Jan 08 2009 - 07:09:38 EST


Michael Stone <michael@xxxxxxxxxx> wrote:
>
> In short, I'm trying to provide a general-purpose facility for
>
> * limiting networking per _process_, not per user,

You do realise that this is trivial to get around with ptrace,
right? So you'll need to stop ptrace as well. Then you'll have
to think about all the other ways the process can escape this
networking jail because processes belonging to the same user
just aren't designed to be separated from each other.

Cheers,
--
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/