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From: "Mickaël Salaün" <mic@digikod.net>
To: Kees Cook <keescook@chromium.org>
Cc: "KP Singh" <kpsingh@chromium.org>,
	linux-kernel@vger.kernel.org, bpf@vger.kernel.org,
	linux-security-module@vger.kernel.org,
	"Alexei Starovoitov" <ast@kernel.org>,
	"Daniel Borkmann" <daniel@iogearbox.net>,
	"James Morris" <jmorris@namei.org>,
	"Thomas Garnier" <thgarnie@chromium.org>,
	"Michael Halcrow" <mhalcrow@google.com>,
	"Paul Turner" <pjt@google.com>,
	"Brendan Gregg" <brendan.d.gregg@gmail.com>,
	"Jann Horn" <jannh@google.com>,
	"Matthew Garrett" <mjg59@google.com>,
	"Christian Brauner" <christian@brauner.io>,
	"Florent Revest" <revest@chromium.org>,
	"Brendan Jackman" <jackmanb@chromium.org>,
	"Martin KaFai Lau" <kafai@fb.com>,
	"Song Liu" <songliubraving@fb.com>, "Yonghong Song" <yhs@fb.com>,
	"Serge E. Hallyn" <serge@hallyn.com>,
	"Mauro Carvalho Chehab" <mchehab+samsung@kernel.org>,
	"David S. Miller" <davem@davemloft.net>,
	"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	"Nicolas Ferre" <nicolas.ferre@microchip.com>,
	"Stanislav Fomichev" <sdf@google.com>,
	"Quentin Monnet" <quentin.monnet@netronome.com>,
	"Andrey Ignatov" <rdna@fb.com>, "Joe Stringer" <joe@wand.net.nz>,
	"Mickaël Salaün" <mickael.salaun@ssi.gouv.fr>
Subject: Re: [PATCH bpf-next v1 00/13] MAC and Audit policy using eBPF (KRSI)
Date: Tue, 31 Dec 2019 13:11:51 +0100	[thread overview]
Message-ID: <6bb12d3a-5613-2891-83af-43e3176481dc@digikod.net> (raw)
In-Reply-To: <201912301128.B37D55AB44@keescook>


On 30/12/2019 20:30, Kees Cook wrote:
> On Fri, Dec 20, 2019 at 11:46:47PM +0100, Mickaël Salaün wrote:
>> I'm working on a version of Landlock without eBPF, but still with the
>> initial sought properties: safe unprivileged composability, modularity, and
>> dynamic update. I'll send this version soon.
>>
>> I hope that the work and experience from Landlock to bring eBPF to LSM will
>> continue to be used through KRSI. Landlock will now focus on the
>> unprivileged sandboxing part, without eBPF. Stay tuned!
> 
> Will it end up looking at all like pledge? I'm still struggling to come
> up with a sensible pledge-like design on top of seccomp, especially
> given the need to have it very closely tied to the running libc...
> 

Yes, it's similar to Pledge/Unveil but with fine-grained control (and a
more flexible design). And because it is not tied to syscall, there is
no similar issues than with seccomp and libc. In fact, there is no more
relationship with seccomp neither. The version I'm working on is similar
in principle to the patch series v10 [1], without the usage complexity
brought by eBPF, but with a more polished file-based access-control. The
demo from LSS 2018 [2] gives an overview of the possibilities.

[1] https://lore.kernel.org/lkml/20190721213116.23476-1-mic@digikod.net/
[2] https://landlock.io/talks/2018-08-27_landlock-lss_demo-1-web.mkv

  reply	other threads:[~2019-12-31 12:13 UTC|newest]

Thread overview: 74+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-20 15:41 [PATCH bpf-next v1 00/13] MAC and Audit policy using eBPF (KRSI) KP Singh
2019-12-20 15:41 ` [PATCH bpf-next v1 01/13] bpf: Refactor BPF_EVENT context macros to its own header KP Singh
2019-12-20 20:10   ` Andrii Nakryiko
2019-12-20 20:26     ` KP Singh
2019-12-20 15:41 ` [PATCH bpf-next v1 02/13] bpf: lsm: Add a skeleton and config options KP Singh
2020-01-07 21:13   ` James Morris
2019-12-20 15:41 ` [PATCH bpf-next v1 03/13] bpf: lsm: Introduce types for eBPF based LSM KP Singh
2019-12-20 15:41 ` [PATCH bpf-next v1 04/13] bpf: lsm: Allow btf_id based attachment for LSM hooks KP Singh
2019-12-23 23:54   ` Andrii Nakryiko
2019-12-30 19:22     ` KP Singh
2019-12-20 15:42 ` [PATCH bpf-next v1 05/13] tools/libbpf: Add support in libbpf for BPF_PROG_TYPE_LSM KP Singh
2019-12-24  0:07   ` Andrii Nakryiko
2019-12-24  0:09     ` Andrii Nakryiko
2020-01-03 23:59     ` KP Singh
2019-12-20 15:42 ` [PATCH bpf-next v1 06/13] bpf: lsm: Init Hooks and create files in securityfs KP Singh
2019-12-24  6:28   ` Andrii Nakryiko
2019-12-30 15:37     ` KP Singh
2019-12-30 18:52       ` Andrii Nakryiko
2019-12-30 19:20       ` Kees Cook
2020-01-03 23:53         ` KP Singh
2020-01-07 21:22   ` James Morris
2019-12-20 15:42 ` [PATCH bpf-next v1 07/13] bpf: lsm: Implement attach, detach and execution KP Singh
2019-12-24  5:48   ` Andrii Nakryiko
2020-01-07 21:27   ` James Morris
2019-12-20 15:42 ` [PATCH bpf-next v1 08/13] bpf: lsm: Show attached program names in hook read handler KP Singh
2020-01-07 21:28   ` James Morris
2019-12-20 15:42 ` [PATCH bpf-next v1 09/13] bpf: lsm: Add a helper function bpf_lsm_event_output KP Singh
2019-12-24  6:36   ` Andrii Nakryiko
2019-12-30 15:11     ` KP Singh
2019-12-30 18:56       ` Andrii Nakryiko
2019-12-20 15:42 ` [PATCH bpf-next v1 10/13] bpf: lsm: Handle attachment of the same program KP Singh
2019-12-24  6:38   ` Andrii Nakryiko
2020-01-08 18:21   ` James Morris
2019-12-20 15:42 ` [PATCH bpf-next v1 11/13] tools/libbpf: Add bpf_program__attach_lsm KP Singh
2019-12-24  6:44   ` Andrii Nakryiko
2020-01-08 18:24   ` James Morris
2019-12-20 15:42 ` [PATCH bpf-next v1 12/13] bpf: lsm: Add selftests for BPF_PROG_TYPE_LSM KP Singh
2019-12-24  6:49   ` Andrii Nakryiko
2020-01-04  0:09     ` KP Singh
2020-01-09 17:59       ` Andrii Nakryiko
2020-01-08 18:25   ` James Morris
2019-12-20 15:42 ` [PATCH bpf-next v1 13/13] bpf: lsm: Add Documentation KP Singh
2019-12-20 17:17 ` [PATCH bpf-next v1 00/13] MAC and Audit policy using eBPF (KRSI) Casey Schaufler
2019-12-20 17:38   ` KP Singh
2019-12-30 19:15     ` Kees Cook
2020-01-08 15:25       ` Stephen Smalley
2020-01-08 18:58         ` James Morris
2020-01-08 19:33           ` Stephen Smalley
2020-01-09 18:11             ` James Morris
2020-01-09 18:23               ` Greg Kroah-Hartman
2020-01-09 18:58               ` Stephen Smalley
2020-01-09 19:07                 ` James Morris
2020-01-09 19:43                   ` KP Singh
2020-01-09 19:47                     ` Stephen Smalley
2020-01-10 15:27                       ` KP Singh
2020-01-10 17:48                         ` James Morris
2020-01-10 17:53                         ` Alexei Starovoitov
2020-01-14 16:54                           ` Stephen Smalley
2020-01-14 17:42                             ` Stephen Smalley
2020-01-15  2:48                               ` Alexei Starovoitov
2020-01-15 13:59                                 ` Stephen Smalley
2020-01-15 14:09                                   ` Greg Kroah-Hartman
2020-01-15 22:23                                     ` Alexei Starovoitov
2020-01-09 19:11               ` KP Singh
2020-01-08 18:27       ` James Morris
2019-12-20 22:46 ` Mickaël Salaün
2019-12-30 19:30   ` Kees Cook
2019-12-31 12:11     ` Mickaël Salaün [this message]
2019-12-22  1:27 ` Alexei Starovoitov
2019-12-30 14:58   ` KP Singh
2019-12-30 19:14     ` Andrii Nakryiko
2019-12-24  6:51 ` Andrii Nakryiko
2019-12-30 15:04   ` KP Singh
2019-12-30 18:58     ` Andrii Nakryiko

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