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From: Tilman Baumann <tilman.baumann@collax.com>
To: Casey Schaufler <casey@schaufler-ca.com>
Cc: Linux-Kernel <linux-kernel@vger.kernel.org>,
	linux-security-module@vger.kernel.org
Subject: Re: SMACK netfilter smacklabel socket match
Date: Fri, 26 Sep 2008 10:19:40 +0200	[thread overview]
Message-ID: <E33DFA86-F040-413F-8156-EDCB879F4CEE@collax.com> (raw)
In-Reply-To: <48DC5A45.8020801@schaufler-ca.com>

Am 26.09.2008 um 05:43 schrieb Casey Schaufler:

> Tilman Baumann wrote:
>> Hi all,
>>
>> i made some SMACK related patches. I hope this list is the right  
>> place to post them.
>
> Here and, probably more importantly linux-security-module@vger.kernel.org 
>  as that's
> my primary hang out.
>
>> The intention behind this patch is that i needed a way to  
>> (firewall) match for packets originating from specific processes.
>> The existing owner match did not work well enough, especially since  
>> the cmd-owner part is removed.
>> Then i thought about a way to tag processes and somehow match this  
>> tag in the firewall.
>> I recalled that SELinux can do this (SECMARK) but SELinux would  
>> have been way to complex for what i want. But the idea was born, i  
>> just needed something more simple.
>>
>> SMACK seemed to be the right way. So i made a little primitive  
>> netfilter match to match against the security context of sockets.
>> SMACK does CIPSO labels, but this was not what i wanted, i wanted  
>> to label the socket not the packet (on the wire).
>> This of course only works for packets with a local socket, but this  
>> was my intention anyway.
>>
>> This way i can label a process and all it's sockets carry the same  
>> label which i then can use to match against in the firewall.
>>
>
> Hmm. It looks as if your code will do what you're asking it to do.
> Are you going to be happy with the access restrictions that will be
> imposed by Smack?

I helped myself with rules like this.
_ foo rwx
But i wanted to add some security stuff like selinux for years,
and SMACK seems to be just great.
So i will spend some time making security rules after i got this routing
stuff to work. :)

Regards
  Tilman

  reply	other threads:[~2008-09-26  8:20 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-09-25 17:25 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 [this message]
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
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

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