netdev - Re: [PATCH v7 16/18] seltests/landlock: add invalid input data test

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Date:   Mon, 12 Sep 2022 19:22:53 +0200
From:   Mickaël Salaün <mic@...ikod.net>
To:     "Konstantin Meskhidze (A)" <konstantin.meskhidze@...wei.com>
Cc:     willemdebruijn.kernel@...il.com, gnoack3000@...il.com,
        linux-security-module@...r.kernel.org, netdev@...r.kernel.org,
        netfilter-devel@...r.kernel.org, anton.sirazetdinov@...wei.com
Subject: Re: [PATCH v7 16/18] seltests/landlock: add invalid input data test


On 10/09/2022 22:51, Konstantin Meskhidze (A) wrote:
> 
> 
> 9/6/2022 11:09 AM, Mickaël Salaün пишет:
>>
>> On 29/08/2022 19:03, Konstantin Meskhidze wrote:
>>> This patch adds rules with invalid user space supplied data:
>>>       - out of range ruleset attribute;
>>>       - unhandled allowed access;
>>>       - zero port value;
>>>       - zero access value;
>>>
>>> Signed-off-by: Konstantin Meskhidze <konstantin.meskhidze@...wei.com>
>>> ---
>>>
>>> Changes since v6:
>>> * Adds invalid ruleset attribute test.
>>>
>>> Changes since v5:
>>> * Formats code with clang-format-14.
>>>
>>> Changes since v4:
>>> * Refactors code with self->port variable.
>>>
>>> Changes since v3:
>>> * Adds inval test.
>>>
>>> ---
>>>    tools/testing/selftests/landlock/net_test.c | 66 ++++++++++++++++++++-
>>>    1 file changed, 65 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/tools/testing/selftests/landlock/net_test.c b/tools/testing/selftests/landlock/net_test.c
>>> index a93224d1521b..067ba45f58a5 100644
>>> --- a/tools/testing/selftests/landlock/net_test.c
>>> +++ b/tools/testing/selftests/landlock/net_test.c
>>> @@ -26,9 +26,12 @@
>>>
>>>    #define IP_ADDRESS "127.0.0.1"
>>>
>>> -/* Number pending connections queue to be hold */
>>> +/* Number pending connections queue to be hold. */
>>
>> Patch of a previous patch?
>>
>>
>>>    #define BACKLOG 10
>>>
>>> +/* Invalid attribute, out of landlock network access range. */
>>> +#define LANDLOCK_INVAL_ATTR 7
>>> +
>>>    FIXTURE(socket)
>>>    {
>>>    	uint port[MAX_SOCKET_NUM];
>>> @@ -719,4 +722,65 @@ TEST_F(socket, ruleset_expanding)
>>>    	/* Closes socket 1. */
>>>    	ASSERT_EQ(0, close(sockfd_1));
>>>    }
>>> +
>>> +TEST_F(socket, inval)
>>> +{
>>> +	struct landlock_ruleset_attr ruleset_attr = {
>>> +		.handled_access_net = LANDLOCK_ACCESS_NET_BIND_TCP
>>> +	};
>>> +	struct landlock_ruleset_attr ruleset_attr_inval = {
>>> +		.handled_access_net = LANDLOCK_INVAL_ATTR
>>
>> Please add a test similar to TEST_F_FORK(layout1,
>> file_and_dir_access_rights) instead of explicitly defining and only
>> testing LANDLOCK_INVAL_ATTR.
>>
>     Do you want fs test to be in this commit or maybe its better to add
> it into "[PATCH v7 01/18] landlock: rename access mask" one.

You can squash all the new tests patches (except the "move helper 
function").