linux-kernel - Re: [PATCH] dmi: Feed DMI table to /dev/random driver

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 for Android: free password hash cracker in your pocket

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

Message-ID: <CA+8MBbKroxc1p8+QOhEd6+gn2BD4ymcS7n7SOMR2=aiMW8waqA@mail.gmail.com>
Date:	Fri, 20 Jul 2012 18:19:33 -0700
From:	Tony Luck <tony.luck@...el.com>
To:	"Theodore Ts'o" <tytso@....edu>, Tony Luck <tony.luck@...el.com>,
	linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
	w@....eu, ewust@...ch.edu, zakir@...ch.edu, greg@...ah.com,
	mpm@...enic.com, nadiah@...ucsd.edu, jhalderm@...ch.edu,
	tglx@...utronix.de, davem@...emloft.net
Subject: Re: [PATCH] dmi: Feed DMI table to /dev/random driver

On Fri, Jul 20, 2012 at 5:56 PM, Theodore Ts'o <tytso@....edu> wrote:
> The other approach was to add some new interface that random.c would
> call which would grab the dmi data from rand_initialize().  But that's
> going to be a lot more complicated, so I guess we should go with the
> simple/stupid approach.

It wouldn't be all that hard ... we'd just need to add a new entry point
to the dmi codefor random to call (and a stub somewhere so that
CONFIG_DMI=n kernels still build). But getting some per-platform
data into the random pools earlier is a good thing ... it means that
users of random data will see the benefit earlier than they do now.

So add the big fat comment so that people know not to break this
useful (if not entirely intentional) functionality.

-Tony
--
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/