[LTP] [PATCH v2 3/3] fanotify14: fix anonymous pipe testcases

[Cyril Hrubis]

Hi!
> Reviewed-by: Amir Goldstein <amir73il@gmail.com>
> Reviewed-by: Jan Kara <jack@suse.cz>
> Co-developed-by: Petr Vorel <pvorel@suse.cz>
> Signed-off-by: Mete Durlu <meted@linux.ibm.com>
> Signed-off-by: Petr Vorel <pvorel@suse.cz>
> ---
> changes v1->v2:
> * Do not include library header in fanotify14 (not needed)
> 
>  .../kernel/syscalls/fanotify/fanotify14.c      | 18 +++++++++++++++---
>  1 file changed, 15 insertions(+), 3 deletions(-)
> 
> diff --git a/testcases/kernel/syscalls/fanotify/fanotify14.c b/testcases/kernel/syscalls/fanotify/fanotify14.c
> index d02d81495..82725f317 100644
> --- a/testcases/kernel/syscalls/fanotify/fanotify14.c
> +++ b/testcases/kernel/syscalls/fanotify/fanotify14.c
> @@ -47,6 +47,7 @@ static int pipes[2] = {-1, -1};
>  static int fanotify_fd;
>  static int ignore_mark_unsupported;
>  static int filesystem_mark_unsupported;
> +static int se_enforcing;
>  static unsigned int supported_init_flags;
>  
>  struct test_case_flags_t {
> @@ -283,9 +284,18 @@ static void do_test(unsigned int number)
>  
>  	tst_res(TINFO, "Testing %s with %s",
>  		tc->mark.desc, tc->mask.desc);
> -	TST_EXP_FD_OR_FAIL(fanotify_mark(fanotify_fd, FAN_MARK_ADD | tc->mark.flags,
> -					 tc->mask.flags, dirfd, path),
> -					 tc->expected_errno);
> +
> +	if (tc->pfd && se_enforcing) {
> +		const int exp_errs[] = {tc->expected_errno, EACCES};
> +
> +		TST_EXP_FAIL_ARR(fanotify_mark(fanotify_fd, FAN_MARK_ADD | tc->mark.flags,
> +				 tc->mask.flags, dirfd, path),
> +				 exp_errs);
> +	} else {
> +		TST_EXP_FAIL(fanotify_mark(fanotify_fd, FAN_MARK_ADD | tc->mark.flags,
> +						 tc->mask.flags, dirfd, path),
> +						 tc->expected_errno);
> +	}

This looks like the test library is not flexible enough to make this
simpler. Maybe having the ARRAY_SIZE() in the TST_EXP_FAIL_ARR wasn't a
good idea after all. Or maybe we just need TST_EXP_FAIL_ARR2() that
would take the array size explicitly, then we could do:


	const int exp_errs[] = {tc->expected_errno, EACESS}

	TST_EXP_FAIL_ARR2(fanotify_mark(fanotify_fd, FAN_MARK_ADD | tc->mark.flags,
                           tc->mask.flags, dirfd, path), exp_errs,
			   se_enforcing ? 1 : 2);

>  	/*
>  	 * ENOTDIR are errors for events/flags not allowed on a non-dir inode.
> @@ -334,6 +344,8 @@ static void do_setup(void)
>  	SAFE_FILE_PRINTF(FILE1, "0");
>  	/* Create anonymous pipes to place marks on */
>  	SAFE_PIPE2(pipes, O_CLOEXEC);
> +
> +	se_enforcing = tst_selinux_enforcing();
>  }
>  
>  static void do_cleanup(void)
> -- 
> 2.43.0
> 

-- 
Cyril Hrubis
chrubis@suse.cz