From: Karol Lewandowski <k.lewandowsk@samsung.com>
To: Paul Moore <pmoore@redhat.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Kosina <jkosina@suse.cz>,
Linux API <linux-api@vger.kernel.org>,
linux-kernel@vger.kernel.org,
John Stultz <john.stultz@linaro.org>,
Arnd Bergmann <arnd@arndb.de>, Tejun Heo <tj@kernel.org>,
Ryan Lortie <desrt@desrt.ca>,
Simon McVittie <simon.mcvittie@collabora.co.uk>,
daniel@zonque.org, David Herrmann <dh.herrmann@gmail.com>,
"casey.schaufler@intel.com" <casey.schaufler@intel.com>,
marcel@holtmann.org, tixxdz@opendz.org,
javier.martinez@collabora.co.uk, alban.crequy@collabora.co.uk,
linux-security-module@vger.kernel.org,
Karol Lewandowski <lmctlx@gmail.com>
Subject: Re: [PATCH 00/12] Add kdbus implementation
Date: Fri, 31 Oct 2014 15:21:39 +0100 [thread overview]
Message-ID: <54539AF3.6060302@samsung.com> (raw)
In-Reply-To: <5113482.YUK8i6Rueb@sifl>
On 2014-10-31 00:39, Paul Moore wrote:
> On Thursday, October 30, 2014 08:55:56 PM Karol Lewandowski wrote:
>> On 2014-10-30 15:47, Greg Kroah-Hartman wrote:
>>> Other than that, I don't know exactly what your patches do, or why they
>>> are needed, care to go into details?
>>
>> Patches in question were supposed to add few hooks for kdbus-specific
>> operations that doesn't seem to have compatible semantics with hooks
>> currently available in LSM.
>>
>> kdbus' bus introduces quite a few new concepts that we wanted to be able
>> to limit based on MAC label/context, eg.
>>
>> - check flags at HELO stage (say disallow fd passing),
>>
>> - restrict ability to acquire name to certain subjects (for system bus),
>>
>> - disallow creation of new buses,
>>
>> - limit scope of broadcasts,
>>
>> - etc.
>>
>> Please take a look at hook list - I think most of names are
>> self-explanatory:
>>
>>
>> https://github.com/lmctl/linux/blob/a9fe4c33b6e5ab25a243e0590df406aabb6add1
>> 2/include/linux/security.h#L1874
>>
>> kdbus modifications were pretty light - with most visible change being
>> addition of opaque security pointer to kdbus_bus and similar structs.
>
> [NOTE: we really should add the LSM list to this discussion and future
> patchset postings.]
>
> Also, to be completely honest, I don't think we ever really arrived at any
> final conclusion about those LSM/kdbus hooks either. At least I don't think I
> ever really satisfied myself that what we had was the "right" solution.
Agreed, "hooks" are far from being complete. I think that patches
were and still are - a starting point for discussion, not "a solution"
itself.
Timing wasn't good either - since our last discussion (Apr/May 2014)
kdbus policy engine has been completely rewritten and few core concepts
changed too.
> We both got busy and kinda drifted away from this effort. Karol, did you do
> any further work on the hooks?
I didn't. I was waiting for the peace of change in kdbus to slow
down a bit and, honestly, wasn't expecting submission in few next
months...
I'll do my best to post RFC patchset today or tomorrow.
Thanks
--
Karol Lewandowski, Samsung R&D Institute Poland
next prev parent reply other threads:[~2014-10-31 14:22 UTC|newest]
Thread overview: 103+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-29 22:00 Greg Kroah-Hartman
2014-10-29 22:00 ` kdbus: add documentation Greg Kroah-Hartman
2014-10-30 12:20 ` Peter Meerwald
2014-11-02 1:29 ` Greg Kroah-Hartman
2014-10-29 22:00 ` kdbus: add header file Greg Kroah-Hartman
2014-10-30 8:20 ` Arnd Bergmann
2014-10-30 11:02 ` Tom Gundersen
2014-10-30 11:26 ` Arnd Bergmann
2014-10-30 11:52 ` Daniel Mack
2014-10-30 12:03 ` Arnd Bergmann
2014-10-31 10:03 ` Daniel Mack
2014-10-29 22:00 ` kdbus: add driver skeleton, ioctl entry points and utility functions Greg Kroah-Hartman
2014-10-30 3:50 ` Eric W. Biederman
2014-10-30 23:45 ` Thomas Gleixner
2014-10-31 0:23 ` Jiri Kosina
2014-10-31 0:42 ` Thomas Gleixner
2014-10-29 22:00 ` kdbus: add connection pool implementation Greg Kroah-Hartman
2014-10-29 22:00 ` kdbus: add connection, queue handling and message validation code Greg Kroah-Hartman
[not found] ` <87k33iw759.fsf@x220.int.ebiederm.org>
2014-10-30 3:55 ` Andy Lutomirski
2014-10-30 9:06 ` Djalal Harouni
2014-10-29 22:00 ` kdbus: add code to gather metadata Greg Kroah-Hartman
2014-10-29 22:33 ` Andy Lutomirski
2014-10-30 0:13 ` Andy Lutomirski
2014-10-30 8:45 ` Daniel Mack
2014-10-30 14:07 ` Andy Lutomirski
2014-10-30 15:54 ` Daniel Mack
2014-10-30 21:01 ` Andy Lutomirski
2014-11-01 11:05 ` Daniel Mack
2014-11-01 16:19 ` Andy Lutomirski
2014-11-03 12:00 ` Simon McVittie
2014-11-03 17:05 ` Andy Lutomirski
2014-10-30 8:09 ` Daniel Mack
2014-10-29 22:00 ` kdbus: add code for notifications and matches Greg Kroah-Hartman
2014-10-29 22:00 ` kdbus: add code for buses, domains and endpoints Greg Kroah-Hartman
2014-10-30 3:59 ` Eric W. Biederman
2014-10-30 9:58 ` Djalal Harouni
2014-10-30 12:15 ` Eric W. Biederman
2014-10-30 14:48 ` Djalal Harouni
2014-10-30 14:58 ` Andy Lutomirski
2014-10-30 18:08 ` Djalal Harouni
2014-10-30 18:46 ` Simon McVittie
2014-11-05 19:59 ` Djalal Harouni
2014-10-30 20:37 ` Andy Lutomirski
[not found] ` <m2ublh$5h7$2@ger.gmane.org>
2014-10-30 22:00 ` Andy Lutomirski
2014-10-30 23:38 ` How Not To Use kref (was Re: kdbus: add code for buses, domains and endpoints) Al Viro
2014-10-31 18:00 ` Linus Torvalds
2014-10-31 19:56 ` Al Viro
2014-11-04 9:11 ` David Herrmann
2014-10-31 1:39 ` kdbus: add code for buses, domains and endpoints Al Viro
2014-10-31 9:55 ` Daniel Mack
2014-10-29 22:00 ` kdbus: add name registry implementation Greg Kroah-Hartman
2014-10-29 22:00 ` kdbus: add policy database implementation Greg Kroah-Hartman
2014-10-29 22:00 ` kdbus: add Makefile, Kconfig and MAINTAINERS entry Greg Kroah-Hartman
2014-10-29 22:00 ` kdbus: add selftests Greg Kroah-Hartman
2014-10-30 8:31 ` Arnd Bergmann
2014-11-14 3:42 ` Michael Ellerman
2014-11-14 8:56 ` Daniel Mack
2014-10-29 22:15 ` [PATCH 00/12] Add kdbus implementation Greg KH
2014-10-30 4:04 ` Eric W. Biederman
2014-10-30 7:12 ` Daniel Mack
2014-10-29 22:15 ` Andy Lutomirski
2014-10-29 22:27 ` Greg Kroah-Hartman
2014-10-29 22:34 ` Andy Lutomirski
2014-10-30 2:27 ` Andy Lutomirski
2014-10-30 4:20 ` Eric W. Biederman
2014-10-30 10:15 ` Tom Gundersen
2014-10-30 12:02 ` Eric W. Biederman
2014-10-30 13:48 ` Andy Lutomirski
2014-10-29 22:19 ` Andy Lutomirski
2014-10-29 22:25 ` Greg Kroah-Hartman
2014-10-29 22:28 ` Andy Lutomirski
2014-10-29 22:36 ` Andy Lutomirski
2014-10-30 7:44 ` Daniel Mack
2014-11-05 14:34 ` Daniel Mack
2014-10-29 23:00 ` Jiri Kosina
2014-10-29 23:11 ` Greg Kroah-Hartman
2014-10-29 23:12 ` Greg Kroah-Hartman
2014-10-29 23:24 ` Jiri Kosina
2014-10-29 23:26 ` Jiri Kosina
2014-10-29 23:34 ` Greg Kroah-Hartman
2014-10-29 23:40 ` Greg Kroah-Hartman
2014-10-29 23:55 ` Andy Lutomirski
2014-10-30 11:52 ` Tom Gundersen
2014-10-30 12:28 ` Simon McVittie
2014-10-30 13:59 ` Andy Lutomirski
2014-10-30 20:28 ` Alex Elsayed
2014-10-30 9:51 ` Karol Lewandowski
2014-10-30 10:44 ` Karol Lewandowski
2014-10-30 14:47 ` Greg Kroah-Hartman
2014-10-30 19:55 ` Karol Lewandowski
2014-10-30 20:24 ` Greg Kroah-Hartman
2014-10-31 11:15 ` Karol Lewandowski
2014-10-30 23:13 ` One Thousand Gnomes
2014-10-31 10:58 ` Karol Lewandowski
2014-10-30 23:39 ` Paul Moore
2014-10-31 14:21 ` Karol Lewandowski [this message]
[not found] ` <1414773397-26490-1-git-send-email-k.lewandowsk@samsung.com>
[not found] ` <20141107180120.GA15387@kroah.com>
2014-11-09 0:07 ` [RFC PATCH 0/5] kdbus: add support for lsm Karol Lewandowski
[not found] ` <1414773397-26490-2-git-send-email-k.lewandowsk@samsung.com>
2014-11-17 1:47 ` [PATCH 1/5] kdbus: extend structures with security pointer " Karol Lewandowski
2014-11-17 18:37 ` Greg KH
2014-11-02 1:21 ` [PATCH 00/12] Add kdbus implementation Greg Kroah-Hartman
2014-11-03 14:38 ` One Thousand Gnomes
2014-10-30 8:33 ` Arnd Bergmann
2014-10-30 16:17 ` Greg Kroah-Hartman
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