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 18:10:57 +0000
From:   Anjali Kulkarni <anjali.k.kulkarni@...cle.com>
To:     Shuah Khan <skhan@...uxfoundation.org>
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>
Subject: Re: [PATCH next 3/3] selftests:connector: Add root check and fix arg
 error paths to skip



> 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.

Anjali
> 	if (filter) {
> 		input.event_type = PROC_EVENT_NONZERO_EXIT;
> 		input.mcast_op = PROC_CN_MCAST_LISTEN;
> -- 
> 2.39.2
>