From: "Ahmed S. Darwish" <darwish.07@gmail.com>
To: "Tilman Baumann" <tilman.baumann@collax.com>
Cc: "Casey Schaufler" <casey@schaufler-ca.com>,
Linux-Kernel <linux-kernel@vger.kernel.org>,
linux-security-module@vger.kernel.org
Subject: Re: SMACK netfilter smacklabel socket match
Date: Tue, 7 Oct 2008 01:05:51 +0200 [thread overview]
Message-ID: <1865922a0810061605j54e59276mab631ec1b14d49b5@mail.gmail.com> (raw)
In-Reply-To: <48EA0B30.6080907@collax.com>
Hi Tilman,
On Mon, Oct 6, 2008 at 2:57 PM, Tilman Baumann
<tilman.baumann@collax.com> wrote:
> If I set /smack/nltype to 'unlabeled' I have effectively shut off the
> network.
...
> This might work well in trusted networks.
> But Internet is untrusted and needs to work too. At least in the most real
> world scenarios. :)
>
> If i set /smack/nltype to 'unlabled' i don't even get SYN packets out.
> (operation not permitted)
>
> That's probably a bug, but I think the "fix" is to disable the ability to
> set the nltype to anything other than CIPSO at least for the time being.
Check this patch:
http://article.gmane.org/gmane.linux.network/95294/match=
As far as I can remember, it does exactly what you're asking for.
There have been some arguments against it, but at least you can get
the idea and _try_ to discuss/enhance it further.
Regards
--
Ahmed S. Darwish
Homepage: http://darwish.07.googlepages.com
Blog: http://darwish-07.blogspot.com
next prev parent reply other threads:[~2008-10-06 23:06 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-25 17:25 SMACK netfilter smacklabel socket match Tilman Baumann
2008-09-25 18:26 ` Paul Moore
2008-09-25 19:26 ` Tilman Baumann
2008-09-25 19:57 ` Paul Moore
2008-09-25 20:32 ` Tilman Baumann
2008-09-26 12:35 ` Tilman Baumann
2008-09-26 19:55 ` Paul Moore
2008-09-26 3:43 ` Casey Schaufler
2008-09-26 8:19 ` Tilman Baumann
2008-09-27 5:01 ` Casey Schaufler
2008-09-29 16:21 ` Tilman Baumann
2008-09-30 3:29 ` Casey Schaufler
2008-10-01 11:29 ` Tilman Baumann
2008-10-01 15:21 ` Casey Schaufler
2008-10-01 16:55 ` Tilman Baumann
2008-10-01 18:22 ` Casey Schaufler
2008-10-06 12:57 ` Tilman Baumann
2008-10-06 23:05 ` Ahmed S. Darwish [this message]
2008-10-07 2:42 ` Casey Schaufler
2008-10-17 16:57 ` Tilman Baumann
2008-10-17 17:53 ` Casey Schaufler
2008-10-20 12:06 ` Tilman Baumann
2008-10-20 15:01 ` Casey Schaufler
2008-10-22 3:36 ` Casey Schaufler
2008-10-30 16:06 ` Tilman Baumann
2008-10-31 3:46 ` Casey Schaufler
2008-12-11 0:03 ` Casey Schaufler
2008-12-11 10:18 ` Tilman Baumann
2008-12-11 16:29 ` Casey Schaufler
2008-10-23 11:55 ` Paul Moore
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1865922a0810061605j54e59276mab631ec1b14d49b5@mail.gmail.com \
--to=darwish.07@gmail.com \
--cc=casey@schaufler-ca.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-security-module@vger.kernel.org \
--cc=tilman.baumann@collax.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).