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SubjectRe: [PATCH ghak25 v4 3/3] audit: add subj creds to NETFILTER_CFG record to cover async unregister
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On Wednesday, May 6, 2020 6:42:33 PM EDT Richard Guy Briggs wrote:
> > > > We can't be adding deleting fields based on how its triggered. If
> > > > they are unset, that is fine. The main issue is they have to behave
> > > > the same.
> > >
> > > I don't think the intent was to have fields swing in and out depending
> > > on trigger. The idea is to potentially permanently not include them in
> > > this record type only. The justification is that where they aren't
> > > needed for the kernel trigger situation it made sense to delete them
> > > because if it is a user context event it will be accompanied by a
> > > syscall record that already has that information and there would be no
> > > sense in duplicating it.
> >
> > We should not be adding syscall records to anything that does not result
> > from a syscall rule triggering the event. Its very wasteful. More
> > wasteful than just adding the necessary fields.
>
> So what you are saying is you want all the fields that are being
> proposed to be added to this record?

Yes.

> If the records are all from one event, they all should all have the same
> timestamp/serial number so that the records are kept together and not
> mistaken for multiple events.

But NETFILTER_CFG is a simple event known to have only 1 record.

> One reason for having information in seperate records is to be able to
> filter them either in kernel or in userspace if you don't need certain
> records.

We can't filter out SYSCALL.

-Steve


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