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

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Message-ID: <20241105202639.1977356-2-cvam0000@gmail.com>
Date: Wed,  6 Nov 2024 01:56:38 +0530
From: Shivam Chaudhary <cvam0000@...il.com>
To: shuah@...nel.org
Cc: linux-kselftest@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Shivam Chaudhary <cvam0000@...il.com>
Subject: [PATCH v4 1/2] selftests:tmpfs: Add Skip test if not run as root

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@...il.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