Date: Tue, 13 Jul 1999 11:15:23 -0700 (PDT) From: Matthew Dillon <dillon@apollo.backplane.com> To: Poul-Henning Kamp <phk@critter.freebsd.dk> Cc: "Allen Smith" <easmith@beatrice.rutgers.edu>, Wes Peters <wes@softweyr.com>, FreeBSD Security <freebsd-security@FreeBSD.ORG> Subject: Re: Secure Deletion Message-ID: <199907131815.LAA79582@apollo.backplane.com> References: <25695.931889331@critter.freebsd.dk>
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:Just in case anybody wants to do this "RIGHT":
:
:UFS/FFS will issue B_FREEBUF strategy calls, which a device driver
:could turn into "secure delete" operations should the drive support
:this, or multiple over-writes if it doesn't.
... and this actually would work. I use B_FREEBUF in MFS to deallocate
underlying VM when possible, though I don't bother making it secure.
:phk@FreeBSD.ORG "Real hackers run -current on their laptop."
:FreeBSD -- It will take a long time before progress goes too far!
-Matt
Matthew Dillon
<dillon@backplane.com>
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