From: "Konstantin Meskhidze (A)" <konstantin.meskhidze@huawei.com>
To: "Mickaël Salaün" <mic@digikod.net>
Cc: <willemdebruijn.kernel@gmail.com>, <gnoack3000@gmail.com>,
<linux-security-module@vger.kernel.org>, <netdev@vger.kernel.org>,
<netfilter-devel@vger.kernel.org>, <yusongping@huawei.com>,
<artem.kuzin@huawei.com>
Subject: Re: [PATCH v9 02/12] landlock: Allow filesystem layout changes for domains without such rule type
Date: Tue, 14 Feb 2023 15:57:57 +0300 [thread overview]
Message-ID: <6d057ab4-8dfe-0977-d13a-323f05af38b8@huawei.com> (raw)
In-Reply-To: <e4008258-aad3-02d2-86fa-9c8118dcbd9e@digikod.net>
2/14/2023 3:07 PM, Mickaël Salaün пишет:
>
> On 14/02/2023 09:51, Konstantin Meskhidze (A) wrote:
>>
>>
>> 2/10/2023 8:34 PM, Mickaël Salaün пишет:
>>> Hi Konstantin,
>>>
>>> I think this patch series is almost ready. Here is a first batch of
>>> review, I'll send more next week.
>>>
>> Hi Mickaёl.
>> thnaks for the review.
>>
>>>
>>> I forgot to update the documentation. Can you please squash the
>>> following patch into this one?
>>
>> No problem. I will squash.
>> Can I download this doc patch from your repo or I can use the diff below?
>
> You can take the diff below.
Ok. Will be done.
>
>>>
>>>
>>> diff --git a/Documentation/userspace-api/landlock.rst
>>> b/Documentation/userspace-api/landlock.rst
>>> index 980558b879d6..fc2be89b423f 100644
>>> --- a/Documentation/userspace-api/landlock.rst
>>> +++ b/Documentation/userspace-api/landlock.rst
>>> @@ -416,9 +416,9 @@ Current limitations
>>> Filesystem topology modification
>>> --------------------------------
>>>
>>> -As for file renaming and linking, a sandboxed thread cannot modify its
>>> -filesystem topology, whether via :manpage:`mount(2)` or
>>> -:manpage:`pivot_root(2)`. However, :manpage:`chroot(2)` calls are not
>>> denied.
>>> +Threads sandboxed with filesystem restrictions cannot modify filesystem
>>> +topology, whether via :manpage:`mount(2)` or :manpage:`pivot_root(2)`.
>>> +However, :manpage:`chroot(2)` calls are not denied.
>>>
>>> Special filesystems
>>> -------------------
>>>
>>>
>>> On 16/01/2023 09:58, Konstantin Meskhidze wrote:
>>>> From: Mickaël Salaün <mic@digikod.net>
>>>>
>>>> Allow mount point and root directory changes when there is no filesystem
>>>> rule tied to the current Landlock domain. This doesn't change anything
>>>> for now because a domain must have at least a (filesystem) rule, but
>>>> this will change when other rule types will come. For instance, a
>>>> domain only restricting the network should have no impact on filesystem
>>>> restrictions.
>>>>
>>>> Add a new get_current_fs_domain() helper to quickly check filesystem
>>>> rule existence for all filesystem LSM hooks.
>>>>
>>>> Remove unnecessary inlining.
>>>>
>>>> Signed-off-by: Mickaël Salaün <mic@digikod.net>
>>>> ---
>>>>
>>>> Changes since v8:
>>>> * Refactors get_handled_fs_accesses().
>>>> * Adds landlock_get_raw_fs_access_mask() helper.
>>>>
>>> .
> .
next prev parent reply other threads:[~2023-02-14 12:58 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-16 8:58 [PATCH v9 00/12] Network support for Landlock Konstantin Meskhidze
2023-01-16 8:58 ` [PATCH v9 01/12] landlock: Make ruleset's access masks more generic Konstantin Meskhidze
2023-01-16 8:58 ` [PATCH v9 02/12] landlock: Allow filesystem layout changes for domains without such rule type Konstantin Meskhidze
2023-02-10 17:34 ` Mickaël Salaün
2023-02-14 8:51 ` Konstantin Meskhidze (A)
2023-02-14 12:07 ` Mickaël Salaün
2023-02-14 12:57 ` Konstantin Meskhidze (A) [this message]
2023-01-16 8:58 ` [PATCH v9 03/12] landlock: Refactor landlock_find_rule/insert_rule Konstantin Meskhidze
2023-02-10 17:36 ` Mickaël Salaün
2023-02-14 10:15 ` Konstantin Meskhidze (A)
2023-02-14 12:09 ` Mickaël Salaün
2023-02-14 13:28 ` Konstantin Meskhidze (A)
2023-01-16 8:58 ` [PATCH v9 04/12] landlock: Refactor merge/inherit_ruleset functions Konstantin Meskhidze
2023-01-16 8:58 ` [PATCH v9 05/12] landlock: Move and rename umask_layers() and init_layer_masks() Konstantin Meskhidze
2023-02-10 17:37 ` Mickaël Salaün
2023-02-14 10:15 ` Konstantin Meskhidze (A)
2023-01-16 8:58 ` [PATCH v9 06/12] landlock: Refactor _unmask_layers() and _init_layer_masks() Konstantin Meskhidze
2023-02-10 17:38 ` Mickaël Salaün
2023-02-14 10:16 ` Konstantin Meskhidze (A)
2023-02-21 18:07 ` Mickaël Salaün
2023-03-06 7:52 ` Konstantin Meskhidze (A)
2023-01-16 8:58 ` [PATCH v9 07/12] landlock: Refactor landlock_add_rule() syscall Konstantin Meskhidze
2023-02-10 17:38 ` Mickaël Salaün
2023-02-14 10:18 ` Konstantin Meskhidze (A)
2023-01-16 8:58 ` [PATCH v9 08/12] landlock: Add network rules and TCP hooks support Konstantin Meskhidze
2023-02-10 17:39 ` Mickaël Salaün
2023-02-14 10:19 ` Konstantin Meskhidze (A)
2023-03-13 9:33 ` Konstantin Meskhidze (A)
2023-03-14 12:13 ` Mickaël Salaün
2023-03-14 14:38 ` Konstantin Meskhidze (A)
2023-02-21 18:04 ` Mickaël Salaün
2023-03-06 10:18 ` Konstantin Meskhidze (A)
2023-01-16 8:58 ` [PATCH v9 09/12] selftests/landlock: Share enforce_ruleset() Konstantin Meskhidze
2023-01-16 8:58 ` [PATCH v9 10/12] selftests/landlock: Add 10 new test suites dedicated to network Konstantin Meskhidze
2023-02-10 17:40 ` Mickaël Salaün
2023-02-14 10:36 ` Konstantin Meskhidze (A)
2023-02-14 12:13 ` Mickaël Salaün
2023-02-14 13:28 ` Konstantin Meskhidze (A)
2023-02-21 18:05 ` Mickaël Salaün
2023-03-06 12:03 ` Konstantin Meskhidze (A)
2023-03-06 16:00 ` Mickaël Salaün
2023-03-06 18:13 ` Konstantin Meskhidze (A)
2023-01-16 8:58 ` [PATCH v9 11/12] samples/landlock: Add network demo Konstantin Meskhidze
2023-01-16 8:58 ` [PATCH v9 12/12] landlock: Document Landlock's network support Konstantin Meskhidze
2023-01-21 23:07 ` Günther Noack
2023-01-23 9:38 ` Konstantin Meskhidze (A)
2023-01-27 18:22 ` Mickaël Salaün
2023-01-30 10:03 ` Konstantin Meskhidze (A)
2023-02-21 16:16 ` Mickaël Salaün
2023-03-06 13:43 ` Konstantin Meskhidze (A)
2023-03-06 16:09 ` Mickaël Salaün
2023-03-06 17:55 ` Konstantin Meskhidze (A)
2023-01-30 12:26 ` Konstantin Meskhidze (A)
2023-02-23 22:17 ` [PATCH v9 00/12] Network support for Landlock Günther Noack
2023-03-06 7:45 ` Konstantin Meskhidze (A)
2023-03-13 17:16 ` Konstantin Meskhidze (A)
2023-03-14 13:28 ` Mickaël Salaün
2023-06-26 15:29 ` [PATCH v9 00/12] Network support for Landlock - allowed list of protocols Mickaël Salaün
2023-06-28 2:33 ` Jeff Xu
2023-06-28 19:03 ` Mickaël Salaün
2023-06-28 21:56 ` Jeff Xu
2023-06-28 8:44 ` Günther Noack
2023-06-28 17:03 ` Jeff Xu
2023-06-28 19:29 ` Mickaël Salaün
2023-06-29 3:18 ` Jeff Xu
2023-06-29 11:07 ` Mickaël Salaün
2023-06-30 4:18 ` Jeff Xu
2023-06-30 18:23 ` Mickaël Salaün
2023-07-05 15:00 ` Jeff Xu
2023-07-12 11:30 ` Mickaël Salaün
2023-07-13 13:20 ` Konstantin Meskhidze (A)
2023-07-13 14:52 ` Mickaël Salaün
2023-07-13 11:44 ` Konstantin Meskhidze (A)
2023-06-28 19:07 ` Mickaël Salaün
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=6d057ab4-8dfe-0977-d13a-323f05af38b8@huawei.com \
--to=konstantin.meskhidze@huawei.com \
--cc=artem.kuzin@huawei.com \
--cc=gnoack3000@gmail.com \
--cc=linux-security-module@vger.kernel.org \
--cc=mic@digikod.net \
--cc=netdev@vger.kernel.org \
--cc=netfilter-devel@vger.kernel.org \
--cc=willemdebruijn.kernel@gmail.com \
--cc=yusongping@huawei.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).