Re: TALPA - a threat model? well sorta.

From: Alan Cox
Date: Wed Aug 13 2008 - 12:55:28 EST


On Wed, 13 Aug 2008 12:47:45 -0400
Eric Paris <eparis@xxxxxxxxxx> wrote:

> On Wed, 2008-08-13 at 17:24 +0100, Alan Cox wrote:
> > > So, what is it that anti-malware companies do? They scan files. That's
> > > it.
> >
> > Good so lets instead have a discussion about making the file event
> > notification more scalable. That is the same thing I want for content
> > indexing. It is the same thing you want for certain kinds of smart
> > archiving, for on-line asynchronous backup and other stuff.
> >
> > It ought to be a simple clean syscall interface.
>
> Are you willing to make it blocking? I'm not sure how to make what we
> have capable of assuring that the object you got a notification about is
> actually the object you are acting on. Thoughts on how to accomplish
> that? I'm here to code and I'm willing to throw all my work in the
> garbage if someone can show me how to actually do it better.

I don't think you need to be blocking if you passed up a file handle ?

fd = fileeventmumble(somestuff);
do_stuff
close(fd);

[taking care not to end up recursing as a result]
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