Messages in this thread | | | Date | Tue, 5 Aug 2008 21:36:59 +0100 | From | Alan Cox <> | Subject | Re: [malware-list] [RFC 0/5] [TALPA] Intro to a linux interface for on access scanning |
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On Tue, 5 Aug 2008 10:01:43 -0700 Greg KH <greg@kroah.com> wrote:
> On Tue, Aug 05, 2008 at 12:25:03PM +0100, Alan Cox wrote: > > > Again, do it all in userspace (caching, and scanning). I still really > > > don't see the need to do this in the kernel becides it being "the way > > > people have always done it." > > > > We don't have notifiers for file segment changes that are scalable that > > far. > > I agree, but if we did, would that help out a lot here? Lots of other > groups of people are needing/asking for something like this and if > someone can finally get it together to post something useful, that might > be a very good thing.
A scalable notification scheme would certainly sort out content indexing systems more nicely. Open notifiers that scale let you do path indexing ("People who opened file X also opened file Y" - both for optimising disk layouts and for application level 'what do I prompt the user with' stuff)
The only thing I can see that is actually needed to get the whole thing working sweetly even for the virus and HSM cases is an LSM willing to bounce some opens via a user space helper. Even without that you could label content 'dubious' on close and relabel it accordingly in the asynchronous scanning app
Alan
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