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selftests/nsfs: add ioctl validation tests

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Add simple tests to validate that non-nsfs ioctls are rejected.

Link: https://lore.kernel.org/r/20250219-work-nsfs-v1-2-21128d73c5e8@kernel.org
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Christian Brauner
2025-02-19 17:40:29 +01:00
parent 7fd511f8c9
commit 540dcf0f44
1 changed files with 14 additions and 0 deletions
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14
tools/testing/selftests/filesystems/nsfs/iterate_mntns.c
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@@ -3,6 +3,8 @@
#define _GNU_SOURCE
#include <fcntl.h>
#include <linux/auto_dev-ioctl.h>
#include <linux/errno.h>
#include <sched.h>
#include <stdio.h>
#include <string.h>
@@ -146,4 +148,16 @@ TEST_F(iterate_mount_namespaces, iterate_backward)
}
}
TEST_F(iterate_mount_namespaces, nfs_valid_ioctl)
{
ASSERT_NE(ioctl(self->fd_mnt_ns[0], AUTOFS_DEV_IOCTL_OPENMOUNT, NULL), 0);
ASSERT_EQ(errno, ENOTTY);
ASSERT_NE(ioctl(self->fd_mnt_ns[0], AUTOFS_DEV_IOCTL_CLOSEMOUNT, NULL), 0);
ASSERT_EQ(errno, ENOTTY);
ASSERT_NE(ioctl(self->fd_mnt_ns[0], AUTOFS_DEV_IOCTL_READY, NULL), 0);
ASSERT_EQ(errno, ENOTTY);
}
TEST_HARNESS_MAIN