From: "Christopher J. PeBenito" <cpebenito@tresys.com>
To: dE <de.techno@gmail.com>, <selinux@tycho.nsa.gov>
Subject: Re: Presidency of user/role/type permissions.
Date: Tue, 13 May 2014 08:26:52 -0400 [thread overview]
Message-ID: <53720F8C.8000205@tresys.com> (raw)
In-Reply-To: <5371EA55.703@gmail.com>
On 05/13/2014 05:48 AM, dE wrote:
> For a process's security context (user, role, type), there maybe a conflict in the policy. for e.g. for user user_u, access to the kernel's ring buffer may not be allowed, but for role role_r, it may be allowed. The same process will have user_u and role_r.
>
> So in case of conflicting permissions between user, role and type who's permission will the security server respect -- user's, role's or type's?
First, obviously, the access has to be allowed via type enforcement allow rule. After that, the constraints can reduce the access. All of the constraints have to be passed for the end result to be allowed, regardless of what is involved in the constraint (user, role, etc.) There is no precedence in the constraints.
--
Chris PeBenito
Tresys Technology, LLC
www.tresys.com | oss.tresys.com
next prev parent reply other threads:[~2014-05-13 12:25 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-13 9:48 Presidency of user/role/type permissions dE
2014-05-13 12:26 ` Christopher J. PeBenito [this message]
2014-05-13 13:52 ` Daniel J Walsh
2014-05-14 6:03 ` dE
2014-05-14 6:10 ` dE
2014-05-14 12:40 ` Daniel J Walsh
2014-05-15 17:40 ` dE
2014-05-15 19:08 ` Daniel J Walsh
2014-05-19 3:09 ` dE
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