linux-kernel - Re: [malware-list] scanner interface proposal was: [TALPA] Intro to a linux interface for on access scanning

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20080818185332.202b32f0@lxorguk.ukuu.org.uk>
Date:	Mon, 18 Aug 2008 18:53:32 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	davecb@....com
Cc:	tvrtko.ursulin@...hos.com, Theodore Tso <tytso@....edu>,
	Arjan van de Ven <arjan@...radead.org>,
	Adrian Bunk <bunk@...nel.org>, capibara@...all.nl,
	Casey Schaufler <casey@...aufler-ca.com>, david@...g.hm,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-security-module@...r.kernel.org,
	malware-list@...ts.printk.net,
	malware-list-bounces@...sg.printk.net,
	Mihai Don??u <mdontu@...defender.com>,
	Peter Dolding <oiaohm@...il.com>, Pavel Machek <pavel@...e.cz>,
	rmeijer@...all.nl
Subject: Re: [malware-list] scanner interface proposal was: [TALPA] Intro to
 a linux interface for on access scanning

>   I suspect we're saying "on close" when what's really meant is
> "opened for write". In the latter case, the notification would tell
> the user-space program to watch for changes, possibly by something as
> simple as doing a stat now and another when it gets around to 

Or more precisely perhaps "on the file becoming dirty". A program that
opens for write, computes for an hour and writes out doesn't want to load
events down until it begins writing.

I agree "on close" is inaccurate for the scanner cases and that is why
we've been talking about events + a close time event.

> deciding if it should scan the file. I see lots of room for
> user-space alternatives for change detection, depending on how much
> state it keeps. Rsync-like, perhaps?

Agreed.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/