# Re: \[PATCH 01/11\] fs: add O\_BENEATH\_ONLY flag to openat(2)

- From: Christoph Hellwig \<hch@infradead.org\>
- Date: 2014-07-09 08:49:04 
- List: linux-api
- Page: https://ratatoskr.run/linux-api/2014/07/4290397
- Thread: https://ratatoskr.run/linux-api/2014/06/4283602/t.md

```text
On Tue, Jul 08, 2014 at 05:54:24PM +0100, David Drysdale wrote:
> > How is this implemented in FreeBSD?  I can't find any references to
> > O_BENEATH_ONLY except for your patchset.
> 
> FreeBSD have the relative-only behaviour for openat() relative to a
> Capsicum capability dfd [1], and for a process in capability-mode [2],
> but they don't have the O_BENEATH_ONLY as a separately-accessible
> openat() flag.  However, it seemed like a more widely useful idea so
> separating it out was suggested.

In that case we should make sure to use the same name and semantics for
it.  As far as I'm concerned I'd prefer a less clumsy name like
O_BENEATH.
```