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From: Sandy Harris <sandyinchina@gmail.com>
To: Jarod Wilson <jarod@redhat.com>
Cc: "Ted Ts'o" <tytso@mit.edu>, Sasha Levin <levinsasha928@gmail.com>,
	linux-crypto@vger.kernel.org, Matt Mackall <mpm@selenic.com>,
	Neil Horman <nhorman@redhat.com>,
	Herbert Xu <herbert.xu@redhat.com>,
	Steve Grubb <sgrubb@redhat.com>,
	Stephan Mueller <stephan.mueller@atsec.com>,
	lkml <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] random: add blocking facility to urandom
Date: Thu, 8 Sep 2011 10:43:38 +0800	[thread overview]
Message-ID: <CACXcFmk5M2DeO6RKL2pbmBLsLqvSCaqO5aUaFiU1eYA1fGozhQ@mail.gmail.com> (raw)
In-Reply-To: <4E67C7AD.9050903@redhat.com>

Jarod Wilson <jarod@redhat.com> wrote:

> Ted Ts'o wrote:

>> Yeah, but there are userspace programs that depend on urandom not
>> blocking... so your proposed change would break them.
>> ...

> But only if you've set the sysctl to a non-zero value, ...
>
> But again, I want to stress that out of the box, there's absolutely no
> change to the way urandom behaves, no blocking, this *only* kicks in if you
> twiddle the sysctl because you have some sort of security requirement that
> mandates it.

So it only breaks things on systems with high security requirements?

  reply	other threads:[~2011-09-08  2:43 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-02 14:37 [PATCH] random: add blocking facility to urandom Jarod Wilson
2011-09-05  2:36 ` Sandy Harris
2011-09-06 14:09   ` Stephan Mueller
2011-09-07 17:38 ` Jarod Wilson
2011-09-07 18:12   ` Sasha Levin
2011-09-07 18:26     ` Jarod Wilson
2011-09-07 19:05       ` Sasha Levin
2011-09-07 19:30         ` Jarod Wilson
2011-09-07 20:00           ` Sasha Levin
2011-09-07 19:35         ` Neil Horman
2011-09-07 19:27       ` Ted Ts'o
2011-09-07 19:36         ` Jarod Wilson
2011-09-07 19:36           ` Jarod Wilson
2011-09-08  2:43           ` Sandy Harris [this message]
2011-09-07 19:49         ` David Miller
2011-09-07 20:02         ` Steve Grubb
2011-09-07 20:23           ` Sasha Levin
2011-09-07 20:30             ` Steve Grubb
2011-09-07 20:37               ` Sasha Levin
2011-09-07 20:56                 ` Steve Grubb
2011-09-07 21:10                   ` Sasha Levin
2011-09-07 21:28                     ` Steve Grubb
2011-09-07 21:38                       ` Sasha Levin
2011-09-07 21:35                     ` Jarod Wilson
2011-09-07 21:43                       ` Steve Grubb
2011-09-07 22:46                         ` Sven-Haegar Koch
2011-09-08  7:21                         ` Sasha Levin
2011-09-07 23:57                   ` Neil Horman
2011-09-08  6:41                     ` Tomas Mraz
2011-09-08 12:52                       ` Neil Horman
2011-09-08 13:11                         ` Steve Grubb
2011-09-08 13:49                           ` Neil Horman
2011-09-09  2:21                           ` Sandy Harris
2011-09-09 13:04                             ` Steve Grubb
2011-09-09 16:25                               ` Ted Ts'o
2011-09-09 21:27                               ` Thomas Gleixner
2011-09-12 13:56                                 ` Jarod Wilson
2011-09-13 10:58                                   ` Peter Zijlstra
2011-09-13 12:18                                     ` Jarod Wilson
2011-09-11  2:05                             ` Valdis.Kletnieks
2011-09-12 13:55                               ` Jarod Wilson
2011-09-12 16:58                                 ` Valdis.Kletnieks
2011-09-12 18:26                                   ` Jarod Wilson
2011-09-07 20:33           ` Neil Horman
2011-09-07 20:48             ` Steve Grubb
2011-09-07 21:18           ` Ted Ts'o
2011-09-07 21:27             ` Stephan Mueller
2011-09-07 21:27               ` Stephan Mueller
2011-09-07 21:38               ` Ted Ts'o
2011-09-08  8:44               ` Christoph Hellwig
2011-09-08 11:48                 ` Steve Grubb
2011-09-08 16:13                   ` David Miller
2011-09-09 19:08                     ` Eric Paris
2011-09-09 19:12                       ` Neil Horman
2011-09-08  8:42             ` Christoph Hellwig
2011-09-08  8:42               ` Christoph Hellwig
2011-09-07 21:20           ` Nikos Mavrogiannopoulos
2011-09-08  8:41           ` Christoph Hellwig
2011-09-12 14:02         ` Jarod Wilson
2011-09-12 14:02           ` Jarod Wilson
2011-09-12 14:58           ` Neil Horman
2011-09-12 17:06           ` Mark Brown

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