netdev - [PATCH net-next 0/6] prandom fixes/improvements

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Date:	Mon, 11 Nov 2013 12:20:31 +0100
From:	Daniel Borkmann <dborkman@...hat.com>
To:	davem@...emloft.net
Cc:	shemminger@...workplumber.org, fweimer@...hat.com,
	netdev@...r.kernel.org
Subject: [PATCH net-next 0/6] prandom fixes/improvements

Hi Dave,

It would be great if you could still consider this series that fixes and
improves prandom for 3.13. We have sent it to netdev as prandom() originally
came from net/core/utils.c and networking is its main user. For a detailled
description, please see individual patches.

For patch 3 in this series, there will be a minor merge conflict with the
random tree that is for 3.13. See below how to resolve it.

====
Hannes says: on merge with the random tree I would suggest to resolve the
conflict in drivers/char/random.c like this:

if (r->entropy_total > 128) {
	r->initialized = 1;
	r->entropy_total = 0;
	if (r == &nonblocking_pool) {
		prandom_reseed_late();
		pr_notice("random: %s pool is initialized\n",
			  r->name);
	}
}

So it won't generate a warning if DEBUG_RANDOM_BOOT gets activated.
====

Patch 1 should probably also go to -stable.

Set tested on 32 and 64 bit machines.

Thanks a lot!

Ref. original discussion: http://patchwork.ozlabs.org/patch/289951/

Daniel Borkmann (4):
  random32: fix off-by-one in seeding requirement
  random32: move rnd_state to linux/random.h
  random32: upgrade taus88 generator to taus113 from errata paper
  random32: add test cases for taus113 implementation

Hannes Frederic Sowa (2):
  random32: add periodic reseeding
  random32: add prandom_reseed_late() and call when nonblocking pool
    becomes initialized

 drivers/char/random.c       |   5 +-
 include/linux/random.h      |  14 +-
 include/uapi/linux/random.h |   7 -
 lib/Kconfig                 |   7 +
 lib/random32.c              | 307 +++++++++++++++++++++++++++++++++++++++-----
 5 files changed, 294 insertions(+), 46 deletions(-)

-- 
1.8.3.1

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