Re: [take 3] Use pid in inotify events.

Pavel Machek
2008-11-21T14:57:33Z

On Fri 2008-11-21 09:30:38, Robert Love wrote:
> On Fri, Nov 21, 2008 at 9:03 AM, Evgeniy Polyakov <zbr@ioremap.net> wrote:
>
> > Critics without suggestions is useless. What did you try to say here?
> > You you believe it should be done in a different way, please tell us how
> > you see this should be implemented.
>
> Pavel has the bedside manner of a T-Rex, but he is right.

Heh. Will attach T-Rex to next email.

> Your solution needs to be (a) generally applicable and useful, with an
> (b) elegant and clean API, which (c) does not break ABI or API.
>
> Overloading the cookie field is not the way to go. Finding ways to
> extend the API through inotify_init might be--you will have even
> higher hurdles of "do we really need this" though.
>
> John & I intentionally did not add the pid field when writing inotify
> for reasons of security and questionable need. It also stinks to have
> to add a pid field to the event structure if that field is seldom
> used.

...plus the permission check was quite strange. We don't normally try
to hide PIDs, and 'equal uid' is very non-standard test. can_ptrace()
is normally used for such stuff...

Pavel

--
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