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>, <artem.kuzin@huawei.com>
Subject: Re: [PATCH v8 11/12] samples/landlock: Add network demo
Date: Mon, 9 Jan 2023 10:57:06 +0300 [thread overview]
Message-ID: <885a23b1-78d2-1e62-8d07-91ff33863cbf@huawei.com> (raw)
In-Reply-To: <5c941be9-ac6a-d259-997e-13fdff09aeb4@digikod.net>
1/6/2023 10:34 PM, Mickaël Salaün пишет:
>
> On 05/01/2023 04:46, Konstantin Meskhidze (A) wrote:
>>
>>
>> 11/16/2022 5:25 PM, Mickaël Salaün пишет:
>
> [...]
>
>>>
>>>> fprintf(stderr,
>>>> "Hint: You should update the running kernel "
>>>> "to leverage Landlock features "
>>>> @@ -259,16 +342,36 @@ int main(const int argc, char *const argv[], char *const *const envp)
>>>> access_fs_ro &= ruleset_attr.handled_access_fs;
>>>> access_fs_rw &= ruleset_attr.handled_access_fs;
>>>>
>>>> + /* Removes bind access attribute if not supported by a user. */
>>>> + env_port_name = getenv(ENV_TCP_BIND_NAME);
>>>> + if (!env_port_name) {
>>>
>>> You can move this logic at the populate_ruleset_net() call site and
>>> update this helper to not call getenv() twice for the same variable.
>>
>> But here I exclude ruleset attributes, not rule itself. It will break
>> the logic: creating a ruleset then applying rules.
>> I suggest to leave here as its.
>
> Right, but you can still avoid the duplicate getenv() calls.
OK. Will fix it.
>
>
>>>
>>>
>>>> + access_net_tcp &= ~LANDLOCK_ACCESS_NET_BIND_TCP;
>>>> + }
>>>> + /* Removes connect access attribute if not supported by a user. */
>>>> + env_port_name = getenv(ENV_TCP_CONNECT_NAME);
>>>> + if (!env_port_name) {
>>>> + access_net_tcp &= ~LANDLOCK_ACCESS_NET_CONNECT_TCP;
>>>> + }
>>>> + ruleset_attr.handled_access_net &= access_net_tcp;
> .
next prev parent reply other threads:[~2023-01-09 7:57 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-21 15:26 [PATCH v8 00/12] Network support for Landlock Konstantin Meskhidze
2022-10-21 15:26 ` [PATCH v8 01/12] landlock: Make ruleset's access masks more generic Konstantin Meskhidze
2022-11-17 18:41 ` Mickaël Salaün
2022-11-28 2:53 ` Konstantin Meskhidze (A)
2022-11-28 20:22 ` Mickaël Salaün
2022-12-02 2:49 ` Konstantin Meskhidze (A)
2022-10-21 15:26 ` [PATCH v8 02/12] landlock: Refactor landlock_find_rule/insert_rule Konstantin Meskhidze
2022-11-17 18:41 ` Mickaël Salaün
2022-11-17 18:55 ` [PATCH] landlock: Allow filesystem layout changes for domains without such rule type Mickaël Salaün
2022-11-18 9:16 ` Mickaël Salaün
2022-11-28 3:04 ` Konstantin Meskhidze (A)
2022-11-28 20:23 ` Mickaël Salaün
2022-12-02 2:50 ` Konstantin Meskhidze (A)
2022-12-24 3:10 ` Konstantin Meskhidze (A)
2022-12-26 21:24 ` Mickaël Salaün
2022-12-27 1:47 ` Konstantin Meskhidze (A)
2022-11-28 3:02 ` Konstantin Meskhidze (A)
2022-11-28 20:25 ` Mickaël Salaün
2022-12-02 2:51 ` Konstantin Meskhidze (A)
2022-11-22 17:17 ` [PATCH v8 02/12] landlock: Refactor landlock_find_rule/insert_rule Mickaël Salaün
2022-11-28 3:06 ` Konstantin Meskhidze (A)
2022-11-28 2:58 ` Konstantin Meskhidze (A)
2022-10-21 15:26 ` [PATCH v8 03/12] landlock: Refactor merge/inherit_ruleset functions Konstantin Meskhidze
2022-11-17 18:41 ` Mickaël Salaün
2022-11-28 3:07 ` Konstantin Meskhidze (A)
2022-10-21 15:26 ` [PATCH v8 04/12] landlock: Move unmask_layers() and init_layer_masks() Konstantin Meskhidze
2022-11-17 18:42 ` Mickaël Salaün
2022-11-28 3:25 ` Konstantin Meskhidze (A)
2022-11-28 20:25 ` Mickaël Salaün
2022-12-02 2:52 ` Konstantin Meskhidze (A)
2022-10-21 15:26 ` [PATCH v8 05/12] landlock: Refactor " Konstantin Meskhidze
2022-11-17 18:42 ` Mickaël Salaün
2022-11-28 3:30 ` Konstantin Meskhidze (A)
2022-10-21 15:26 ` [PATCH v8 06/12] landlock: Refactor landlock_add_rule() syscall Konstantin Meskhidze
2022-11-17 18:42 ` Mickaël Salaün
2022-11-28 3:32 ` Konstantin Meskhidze (A)
2022-10-21 15:26 ` [PATCH v8 07/12] landlock: Add network rules support Konstantin Meskhidze
2022-11-17 18:43 ` Mickaël Salaün
2022-11-28 4:01 ` Konstantin Meskhidze (A)
2022-11-28 20:26 ` Mickaël Salaün
2022-12-02 2:54 ` Konstantin Meskhidze (A)
2023-01-03 12:44 ` Konstantin Meskhidze (A)
2023-01-04 11:41 ` Konstantin Meskhidze (A)
2023-01-06 19:22 ` Mickaël Salaün
2023-01-09 7:59 ` Konstantin Meskhidze (A)
2023-01-09 8:58 ` Dan Carpenter
2023-01-09 9:26 ` Konstantin Meskhidze (A)
2023-01-09 10:20 ` Dan Carpenter
2023-01-09 11:39 ` Konstantin Meskhidze (A)
2023-01-09 11:53 ` Dan Carpenter
2023-01-09 12:18 ` Konstantin Meskhidze (A)
2022-10-21 15:26 ` [PATCH v8 08/12] landlock: Implement TCP network hooks Konstantin Meskhidze
2022-11-17 18:43 ` Mickaël Salaün
2022-11-28 8:21 ` Konstantin Meskhidze (A)
2022-11-28 21:00 ` Mickaël Salaün
2022-12-02 3:13 ` Konstantin Meskhidze (A)
2022-12-02 13:01 ` Mickaël Salaün
2022-12-05 2:55 ` Konstantin Meskhidze (A)
2022-12-05 13:18 ` Mickaël Salaün
2023-01-05 8:57 ` Konstantin Meskhidze (A)
2023-01-06 19:30 ` Mickaël Salaün
2023-01-09 8:07 ` Konstantin Meskhidze (A)
2023-01-09 12:38 ` Mickaël Salaün
2023-01-10 4:45 ` Konstantin Meskhidze (A)
2023-01-10 17:24 ` Mickaël Salaün
2023-01-11 1:54 ` Konstantin Meskhidze (A)
2022-10-21 15:26 ` [PATCH v8 09/12] selftests/landlock: Share enforce_ruleset() Konstantin Meskhidze
2022-11-17 18:43 ` Mickaël Salaün
2022-11-28 4:02 ` Konstantin Meskhidze (A)
2022-10-21 15:26 ` [PATCH v8 10/12] selftests/landlock: Add 10 new test suites dedicated to network Konstantin Meskhidze
2023-01-09 12:46 ` Mickaël Salaün
2023-01-10 5:03 ` Konstantin Meskhidze (A)
2023-01-10 17:40 ` Mickaël Salaün
2023-01-11 1:52 ` Konstantin Meskhidze (A)
2022-10-21 15:26 ` [PATCH v8 11/12] samples/landlock: Add network demo Konstantin Meskhidze
2022-11-16 14:25 ` Mickaël Salaün
2022-11-28 2:49 ` Konstantin Meskhidze (A)
2022-11-28 20:26 ` Mickaël Salaün
2022-12-02 2:48 ` Konstantin Meskhidze (A)
2023-01-05 3:46 ` Konstantin Meskhidze (A)
2023-01-06 19:34 ` Mickaël Salaün
2023-01-09 7:57 ` Konstantin Meskhidze (A) [this message]
2022-10-21 15:26 ` [PATCH v8 12/12] landlock: Document Landlock's network support Konstantin Meskhidze
2022-11-17 18:44 ` Mickaël Salaün
2022-11-28 6:44 ` Konstantin Meskhidze (A)
2022-11-28 20:26 ` Mickaël Salaün
2022-12-02 3:14 ` Konstantin Meskhidze (A)
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