Unverified Commit 7442d093 authored by Christian Brauner's avatar Christian Brauner
Browse files

selftests/pidfd: test extended attribute support 

Test that extended attributes are permanent.

Link: https://lore.kernel.org/20250618-work-pidfs-persistent-v2-14-98f3456fd552@kernel.org


Reviewed-by: default avatarAlexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
Signed-off-by: default avatarChristian Brauner <brauner@kernel.org>
parent 49fba372

tools/testing/selftests/pidfd/pidfd_xattr_test.c

+35 −0
Original line number Diff line number Diff line
@@ -94,4 +94,39 @@ TEST_F(pidfs_xattr, set_get_list_xattr_multiple) 
	}

}



TEST_F(pidfs_xattr, set_get_list_xattr_persistent)

{

	int ret;

	char buf[32];

	char list[PATH_MAX] = {};



	ret = fsetxattr(self->child_pidfd, "trusted.persistent", "persistent value", strlen("persistent value"), 0);

	ASSERT_EQ(ret, 0);



	memset(buf, 0, sizeof(buf));

	ret = fgetxattr(self->child_pidfd, "trusted.persistent", buf, sizeof(buf));

	ASSERT_EQ(ret, strlen("persistent value"));

	ASSERT_EQ(strcmp(buf, "persistent value"), 0);



	ret = flistxattr(self->child_pidfd, list, sizeof(list));

	ASSERT_GT(ret, 0);

	ASSERT_EQ(strcmp(list, "trusted.persistent"), 0)



	ASSERT_EQ(close(self->child_pidfd), 0);

	self->child_pidfd = -EBADF;

	sleep(2);



	self->child_pidfd = sys_pidfd_open(self->child_pid, 0);

	ASSERT_GE(self->child_pidfd, 0);



	memset(buf, 0, sizeof(buf));

	ret = fgetxattr(self->child_pidfd, "trusted.persistent", buf, sizeof(buf));

	ASSERT_EQ(ret, strlen("persistent value"));

	ASSERT_EQ(strcmp(buf, "persistent value"), 0);



	ret = flistxattr(self->child_pidfd, list, sizeof(list));

	ASSERT_GT(ret, 0);

	ASSERT_EQ(strcmp(list, "trusted.persistent"), 0);

}



TEST_HARNESS_MAIN