[PATCH v11 10/12] selftests/landlock: Add 11 new test suites dedicated to network
Mickaël Salaün
mic at digikod.net
Sun Jul 2 08:45:51 UTC 2023
On 01/07/2023 21:07, Günther Noack wrote:
> Hi!
>
> On Tue, May 16, 2023 at 12:13:37AM +0800, Konstantin Meskhidze wrote:
>> +TEST_F(inet, bind)
>
> If you are using TEST_F() and you are enforcing a Landlock ruleset
> within that test, doesn't that mean that the same Landlock ruleset is
> now also enabled on other tests that get run after that test?
>
> Most of the other Landlock selftests use TEST_F_FORK() for that
> reason, so that the Landlock enforcement stays local to the specific
> test, and does not accidentally influence the observed behaviour in
> other tests.
Initially Konstantin wrote tests with TEST_F_FORK() but I asked him to
only use TEST_F() because TEST_F_FORK() is only useful when a
FIXTURE_TEARDOWN() needs access rights that were dropped with a
TEST_F(), e.g. to unmount mount points set up with a FIXTURE_SETUP()
while Landlock restricted a test process.
Indeed, TEST_F() already fork() to make sure there is no side effect
with tests.
>
> The same question applies to other test functions in this file as
> well.
>
> –Günther
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