netdev - Re: [PATCH v7 13/18] seltests/landlock: add AF

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Date:   Sat, 10 Sep 2022 23:48:08 +0300
From:   "Konstantin Meskhidze (A)" <konstantin.meskhidze@...wei.com>
To:     Mickaël Salaün <mic@...ikod.net>
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 13/18] seltests/landlock: add AF_UNSPEC family test



9/6/2022 11:09 AM, Mickaël Salaün пишет:
> 
> On 29/08/2022 19:03, Konstantin Meskhidze wrote:
>> Adds two selftests for connect() action with AF_UNSPEC family flag.
>> The one is with no landlock restrictions allows to disconnect already
>> connected socket with connect(..., AF_UNSPEC, ...):
>>      - connect_afunspec_no_restictions;
> 
> Typo: "restrictions" (everywhere)
> 
   My mistake. Thanks.
> 
>> The second one refuses landlocked process to disconnect already
>> connected socket:
>>      - connect_afunspec_with_restictions;
>> 
>> Signed-off-by: Konstantin Meskhidze <konstantin.meskhidze@...wei.com>
>> ---
>> 
>> Changes since v6:
>> * None.
>> 
>> Changes since v5:
>> * Formats code with clang-format-14.
>> 
>> Changes since v4:
>> * Refactors code with self->port, self->addr4 variables.
>> * Adds bind() hook check for with AF_UNSPEC family.
>> 
>> Changes since v3:
>> * Adds connect_afunspec_no_restictions test.
>> * Adds connect_afunspec_with_restictions test.
>> 
>> ---
>>   tools/testing/selftests/landlock/net_test.c | 113 ++++++++++++++++++++
>>   1 file changed, 113 insertions(+)
>> 
>> diff --git a/tools/testing/selftests/landlock/net_test.c b/tools/testing/selftests/landlock/net_test.c
>> index 9c3d1e425439..40aef7c683af 100644
>> --- a/tools/testing/selftests/landlock/net_test.c
>> +++ b/tools/testing/selftests/landlock/net_test.c
>> @@ -351,4 +351,117 @@ TEST_F(socket, connect_with_restrictions)
>>   	ASSERT_EQ(1, WIFEXITED(status));
>>   	ASSERT_EQ(EXIT_SUCCESS, WEXITSTATUS(status));
>>   }
>> +
>> +TEST_F(socket, connect_afunspec_no_restictions)
>> +{
>> +	int sockfd;
>> +	pid_t child;
>> +	int status;
>> +
>> +	/* Creates a server socket 1. */
>> +	sockfd = create_socket_variant(variant, SOCK_STREAM);
>> +	ASSERT_LE(0, sockfd);
>> +
>> +	/* Binds the socket 1 to address with port[0]. */
>> +	ASSERT_EQ(0, bind_variant(variant, sockfd, self, 0));
>> +
>> +	/* Makes connection to the socket with port[0]. */
>> +	ASSERT_EQ(0, connect_variant(variant, sockfd, self, 0));
>> +
>> +	child = fork();
>> +	ASSERT_LE(0, child);
>> +	if (child == 0) {
>> +		struct sockaddr addr_unspec = { .sa_family = AF_UNSPEC };
> 
> You can constify several variable like this one (in all tests).

   Got it. thanks.
> 
> .