Messages in this thread | | | Date | Wed, 24 Dec 2008 09:53:01 +0100 | From | Pavel Machek <> | Subject | Re: [PATCH 0/5] VFS: DazukoFS, stackable-fs, file access control |
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On Tue 2008-12-23 19:55:27, John Ogness wrote: > On 2008-12-23, Pavel Machek <pavel@suse.cz> wrote: > >> MOTIVATION > >> > >> Since 2001 various anti-virus vendors have been providing > >> out-of-tree solutions for online virus scanning. Although GNU/Linux > >> systems currently are not targets of virus authors, many > >> organizations are interested in online virus scanning on > >> Linux-based servers in order to help protect Microsoft Windows > >> clients. It is often argued that file scanning should be > >> implemented in the various services (such as Samba, Apache, vsftpd, > >> etc.), and indeed many such solutions have been > >> implemented. However, there is a continued demand for a > >> kernel-based solution because it can guard the entire filesystem > >> independent from the types and numbers of services running on a > >> system. > > > > Somewhere here you should mention that unlike other solutions that > > work 100% of time, dazuko is be design racy and may still allow > > viruses to be spread from linux system when mmap is used. > > This thread is about DazukoFS. I feel there is no need to discuss > previous incarnations of Dazuko, all of which share _no_ code with > DazukoFS. > > If you are aware of a race condition in DazukoFS, please report > it. Thank you.
I'm surprised, do you claim there is none?
So how do you handle mmap(...MAP_SHARED) case? Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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