linux-kernel - Re: [PATCH next 3/3] selftests:connector: Add root check and fix arg error paths to skip

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Date:   Fri, 28 Jul 2023 13:06:06 -0600
From:   Shuah Khan <skhan@...uxfoundation.org>
To:     Anjali Kulkarni <anjali.k.kulkarni@...cle.com>
Cc:     Shuah Khan <shuah@...nel.org>,
        Liam Howlett <liam.howlett@...cle.com>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "linux-kselftest@...r.kernel.org" <linux-kselftest@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH next 3/3] selftests:connector: Add root check and fix arg
 error paths to skip

On 7/28/23 12:10, Anjali Kulkarni wrote:
> 
> 
>> On Jul 28, 2023, at 10:29 AM, Shuah Khan <skhan@...uxfoundation.org> wrote:
>>
>> proc_filter test requires root privileges. Add root privilege check
>> and skip the test. Also fix argument parsing paths to skip in their
>> error legs.
>>
>> Signed-off-by: Shuah Khan <skhan@...uxfoundation.org>
>> ---
>> tools/testing/selftests/connector/proc_filter.c | 9 +++++++--
>> 1 file changed, 7 insertions(+), 2 deletions(-)
>>
>> diff --git a/tools/testing/selftests/connector/proc_filter.c b/tools/testing/selftests/connector/proc_filter.c
>> index 4fe8c6763fd8..7b2081b98e5c 100644
>> --- a/tools/testing/selftests/connector/proc_filter.c
>> +++ b/tools/testing/selftests/connector/proc_filter.c
>> @@ -248,7 +248,7 @@ int main(int argc, char *argv[])
>>
>> 	if (argc > 2) {
>> 		printf("Expected 0(assume no-filter) or 1 argument(-f)\n");
>> -		exit(1);
>> +		exit(KSFT_SKIP);
>> 	}
>>
>> 	if (argc == 2) {
>> @@ -256,10 +256,15 @@ int main(int argc, char *argv[])
>> 			filter = 1;
>> 		} else {
>> 			printf("Valid option : -f (for filter feature)\n");
>> -			exit(1);
>> +			exit(KSFT_SKIP);
>> 		}
>> 	}
>>
>> +	if (geteuid()) {
>> +		printf("Connector test requires root privileges.\n");
>> +		exit(KSFT_SKIP);
>> +	}
>> +
> 
> I am not sure why you have added this check? proc_filter does not need root privilege to run.
> 

It failed for me when I ran it saying it requires root privileges.
I had to run it as root.

thanks,
-- Shuah