[LTP] [PATCH] syscalls/mknod07: whiteout creation no longer requires privileges

[Yang Xu]

Hi Jan

Acked.
Also Theses mknod/mknodat cases should convert into new api.

Best Regards
Yang Xu

> Since commit a3c751a50fe6 ("vfs: allow unprivileged whiteout creation"),
> privileges are no longer required to create whiteout (0,0) char device.
>
> Use /dev/null instead for EPERM test.
>
> Signed-off-by: Jan Stancek <jstancek@redhat.com>
> ---
>   testcases/kernel/syscalls/mknod/mknod07.c | 17 ++++++++++-------
>   1 file changed, 10 insertions(+), 7 deletions(-)
>
> diff --git a/testcases/kernel/syscalls/mknod/mknod07.c b/testcases/kernel/syscalls/mknod/mknod07.c
> index 69cff02d95d1..829199061532 100644
> --- a/testcases/kernel/syscalls/mknod/mknod07.c
> +++ b/testcases/kernel/syscalls/mknod/mknod07.c
> @@ -43,6 +43,7 @@
>   #include <sys/types.h>
>   #include <sys/stat.h>
>   #include <sys/mount.h>
> +#include <sys/sysmacros.h>
>   
>   #include "test.h"
>   #include "safe_macros.h"
> @@ -69,13 +70,14 @@ static struct test_case_t {
>   	char *pathname;
>   	int mode;
>   	int exp_errno;
> +	int major, minor;
>   } test_cases[] = {
> -	{ "testdir_1/tnode_1", SOCKET_MODE, EACCES },
> -	{ "testdir_1/tnode_2", FIFO_MODE, EACCES },
> -	{ "tnode_3", CHR_MODE, EPERM },
> -	{ "tnode_4", BLK_MODE, EPERM },
> -	{ "mntpoint/tnode_5", SOCKET_MODE, EROFS },
> -	{ elooppathname, FIFO_MODE, ELOOP },
> +	{ "testdir_1/tnode_1", SOCKET_MODE, EACCES, 0, 0 },
> +	{ "testdir_1/tnode_2", FIFO_MODE, EACCES, 0, 0 },
> +	{ "tnode_3", CHR_MODE, EPERM, 1, 3 },
> +	{ "tnode_4", BLK_MODE, EPERM, 0, 0 },
> +	{ "mntpoint/tnode_5", SOCKET_MODE, EROFS, 0, 0 },
> +	{ elooppathname, FIFO_MODE, ELOOP, 0, 0 },
>   };
>   
>   char *TCID = "mknod07";
> @@ -149,7 +151,8 @@ static void setup(void)
>   
>   static void mknod_verify(const struct test_case_t *test_case)
>   {
> -	TEST(mknod(test_case->pathname, test_case->mode, 0));
> +	TEST(mknod(test_case->pathname, test_case->mode,
> +		makedev(test_case->major, test_case->minor)));
>   
>   	if (TEST_RETURN != -1) {
>   		tst_resm(TFAIL, "mknod succeeded unexpectedly");


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