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From: Karl MacMillan <kmacmillan@mentalrootkit.com>
To: Joshua Brindle <jbrindle@tresys.com>
Cc: Stephen Smalley <sds@tycho.nsa.gov>,
	Eric Paris <eparis@parisplace.org>,
	selinux@tycho.nsa.gov, James Morris <jmorris@redhat.com>
Subject: Re: [RFC] Ability to allow unknown class and permissions
Date: Mon, 04 Dec 2006 16:34:25 -0500	[thread overview]
Message-ID: <45749461.7050405@mentalrootkit.com> (raw)
In-Reply-To: <6FE441CD9F0C0C479F2D88F959B015885C82ED@exchange.columbia.tresys.com>

Joshua Brindle wrote:
>> From: Karl MacMillan [mailto:kmacmillan@mentalrootkit.com] 
>>
>> Joshua Brindle wrote:

<snip>

>>
>>   Or Why would you need #1 if you have
>>> #2? I thought the config flag was for the kernel..
>> To allow the policy file to be analyzed without external reference.
>>
> 
> Second time analysis was mentioned and still wrong (IMO). You can't
> analyze unknown permissions since the kernel which the kernel is
> inserted into also decides whether the permissions are checked.
> 

But you can tell if unknown permissions will be allowed (and even which 
object classes and permissions for a specific kernel) without reference 
to the _configuration_ of a specific system. You only need to look at 
the policy and the version of the kernel / userspace components. That 
is, in my opinion, an important difference.

Karl



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  reply	other threads:[~2006-12-04 21:34 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-12-01 16:06 [RFC] Ability to allow unknown class and permissions Eric Paris
2006-12-01 17:18 ` Stephen Smalley
2006-12-01 18:41 ` Stephen Smalley
2006-12-02  3:28   ` Joshua Brindle
2006-12-04 14:46     ` Stephen Smalley
2006-12-04 15:11       ` Joshua Brindle
2006-12-04 15:24         ` Stephen Smalley
2006-12-04 18:13           ` Joshua Brindle
2006-12-04 18:49             ` Eric Paris
2006-12-04 19:39               ` Stephen Smalley
2006-12-04 20:06                 ` Karl MacMillan
2006-12-04 20:11                   ` Joshua Brindle
2006-12-04 20:15                     ` Karl MacMillan
2006-12-04 20:18                       ` Joshua Brindle
2006-12-04 20:25                         ` Karl MacMillan
2006-12-04 20:28                           ` Joshua Brindle
2006-12-04 20:25                             ` Stephen Smalley
2006-12-04 20:34                               ` Karl MacMillan
2006-12-04 20:44                                 ` Stephen Smalley
2006-12-04 21:05                                   ` Karl MacMillan
2006-12-05 13:31                                     ` Stephen Smalley
2006-12-05 13:59                                       ` Karl MacMillan
2006-12-04 20:33                             ` Karl MacMillan
2006-12-04 21:19                               ` Joshua Brindle
2006-12-04 21:34                                 ` Karl MacMillan [this message]
2006-12-04 23:20                                   ` Joshua Brindle
2006-12-05 13:41                                     ` Stephen Smalley
2006-12-05 13:33                                 ` Stephen Smalley

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