[PATCH v4 1/2] selftests:tmpfs: Add Skip test if not run as root

[PATCH v4 1/2] selftests:tmpfs: Add Skip test if not run as root

[Shivam Chaudhary]

- Add skip test if  not run as root, with an
  appropriate Warning.

- Add 'ksft_print_header()' and 'ksft_set_plan()'
 to structure test outputs more effectively.

Test logs :

Before change:

- Without root
 error: unshare, errno 1

- With root
 No, output

After change:

- Without root
TAP version 13
1..1

- With root
TAP version 13
1..1

Signed-off-by: Shivam Chaudhary <cvam0000@gmail.com>
---

Notes:

		Changes in v4 1/2: 
				- Start a patchset
				- Split patch into smaller pathes to make it easy to review.
		
		link to v3: https://lore.kernel.org/all/20241028185756.111832-1-cvam0000@gmail.com/

		Changes in v3:
				- Remove extra ksft_set_plan()
				- Remove function for unshare()
				- Fix the comment style

		link to v2: https://lore.kernel.org/all/20241026191621.2860376-1-cvam0000@gmail.com/

		Changes in v2:
				- Make the commit message more clear.

		link to v1: https://lore.kernel.org/all/20241024200228.1075840-1-cvam0000@gmail.com/T/#u



 tools/testing/selftests/tmpfs/bug-link-o-tmpfile.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/tools/testing/selftests/tmpfs/bug-link-o-tmpfile.c b/tools/testing/selftests/tmpfs/bug-link-o-tmpfile.c
index b5c3ddb90942..cdab1e8c0392 100644
--- a/tools/testing/selftests/tmpfs/bug-link-o-tmpfile.c
+++ b/tools/testing/selftests/tmpfs/bug-link-o-tmpfile.c
@@ -23,10 +23,23 @@
 #include <sys/mount.h>
 #include <unistd.h>
 
+#include "../kselftest.h"
+
 int main(void)
 {
 	int fd;
 
+	/* Setting up kselftest framework */
+	ksft_print_header();
+	ksft_set_plan(1);
+
+	/* Check if test is run as root */
+	if (geteuid()) {
+		ksft_print_msg("Skip : Need to run as root");
+		exit(KSFT_SKIP);
+
+	}
+
 	if (unshare(CLONE_NEWNS) == -1) {
 		if (errno == ENOSYS || errno == EPERM) {
 			fprintf(stderr, "error: unshare, errno %d\n", errno);
-- 
2.45.2

[PATCH v4 1/2] selftests:tmpfs: Add Skip test if not run as root

[Shivam Chaudhary]

Add skip test if  not run as root, with an appropriate Warning.

Add 'ksft_print_header()' and 'ksft_set_plan()' to structure test
outputs more effectively.

Test logs :

Before change:

- Without root
 error: unshare, errno 1

- With root
 No, output

After change:

- Without root
TAP version 13
1..1

- With root
TAP version 13
1..1

Signed-off-by: Shivam Chaudhary <cvam0000@gmail.com>
---
  
 tools/testing/selftests/tmpfs/bug-link-o-tmpfile.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/tools/testing/selftests/tmpfs/bug-link-o-tmpfile.c b/tools/testing/selftests/tmpfs/bug-link-o-tmpfile.c
index b5c3ddb90942..cdab1e8c0392 100644
--- a/tools/testing/selftests/tmpfs/bug-link-o-tmpfile.c
+++ b/tools/testing/selftests/tmpfs/bug-link-o-tmpfile.c
@@ -23,10 +23,23 @@
 #include <sys/mount.h>
 #include <unistd.h>
 
+#include "../kselftest.h"
+
 int main(void)
 {
 	int fd;
 
+	/* Setting up kselftest framework */
+	ksft_print_header();
+	ksft_set_plan(1);
+
+	/* Check if test is run as root */
+	if (geteuid()) {
+		ksft_print_msg("Skip : Need to run as root");
+		exit(KSFT_SKIP);
+
+	}
+
 	if (unshare(CLONE_NEWNS) == -1) {
 		if (errno == ENOSYS || errno == EPERM) {
 			fprintf(stderr, "error: unshare, errno %d\n", errno);
-- 
2.45.2

Re: [PATCH v4 1/2] selftests:tmpfs: Add Skip test if not run as root

[Shuah Khan]

On 11/5/24 13:26, Shivam Chaudhary wrote:
> Add skip test if  not run as root, with an appropriate Warning.
> 
> Add 'ksft_print_header()' and 'ksft_set_plan()' to structure test
> outputs more effectively.
> 
> Test logs :
> 
> Before change:
> 
> - Without root
>   error: unshare, errno 1
> 
> - With root
>   No, output
> 
> After change:
> 
> - Without root
> TAP version 13
> 1..1
> 
> - With root
> TAP version 13
> 1..1
> 
> Signed-off-by: Shivam Chaudhary <cvam0000@gmail.com>
> ---
>    
>   tools/testing/selftests/tmpfs/bug-link-o-tmpfile.c | 13 +++++++++++++
>   1 file changed, 13 insertions(+)
> 
> diff --git a/tools/testing/selftests/tmpfs/bug-link-o-tmpfile.c b/tools/testing/selftests/tmpfs/bug-link-o-tmpfile.c
> index b5c3ddb90942..cdab1e8c0392 100644
> --- a/tools/testing/selftests/tmpfs/bug-link-o-tmpfile.c
> +++ b/tools/testing/selftests/tmpfs/bug-link-o-tmpfile.c
> @@ -23,10 +23,23 @@
>   #include <sys/mount.h>
>   #include <unistd.h>
>   
> +#include "../kselftest.h"
> +
>   int main(void)
>   {
>   	int fd;
>   
> +	/* Setting up kselftest framework */
> +	ksft_print_header();
> +	ksft_set_plan(1);
> +
> +	/* Check if test is run as root */
> +	if (geteuid()) {
> +		ksft_print_msg("Skip : Need to run as root");
> +		exit(KSFT_SKIP);

These two can be replaced by ksft_exit_fail_msg() - refer to the
kselftest.h for the right API to use for each of these cases.

> +
> +	}
> +
>   	if (unshare(CLONE_NEWNS) == -1) {
>   		if (errno == ENOSYS || errno == EPERM) {
>   			fprintf(stderr, "error: unshare, errno %d\n", errno);

thanks,
-- Shuah