Messages in this thread | | | Date | Tue, 5 Aug 2008 13:22:51 +0100 | From | Alan Cox <> | Subject | Re: [RFC 0/5] [TALPA] Intro to a linux interface for on access scanning |
| |
> Remember, the big issue here isn't the kernel "hooks", but the fact that > a lot of people are yet to be convinced that something like this needs > to be within the kernel itself.
Mostly the same people who said that about LSM I note 8)
> Perhaps we should dig up the proposals for the filesystem-notify type > patches, something like that might be all the majority of the virus > people need, as they want to just scan things for Windows viruses, not > Linux ones, and to do so "lazily" might be sufficient.
The key difference between a lazy scan and an active intervention is tiny - the ability to block in the security decision to open a file.
Once you have that bit you have the ability to hand the file handle up to a daemon to chew on and return a status. The same co-incidentally gives you the hooks for doing various kinds of HSM as you can block an open while you retrieve the archived content from wherever it was warehoused.
Alan
| |