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From: Theodore Ts'o <tytso@mit.edu>
To: Bob Beck <beck@openbsd.org>
Cc: Christoph Hellwig <hch@infradead.org>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	linux-abi <linux-abi@vger.kernel.org>,
	linux-crypto <linux-crypto@vger.kernel.org>
Subject: Re: [PATCH, RFC] random: introduce getrandom(2) system call
Date: Thu, 17 Jul 2014 13:34:33 -0400	[thread overview]
Message-ID: <20140717173433.GQ1491@thunk.org> (raw)
In-Reply-To: <CAComcpM9-sUwzT9BPFT7BJjk97V0kj996D=AaivDpeTZUNbiew@mail.gmail.com>

On Thu, Jul 17, 2014 at 11:05:01AM -0600, Bob Beck wrote:
> Hi Ted, yeah I understand the reasoning, it would be good if there was
> a way to influence the various libc people to
> ensure they manage to provide a getentropy().

I don't anticipate that to be a problem.  And before they do, and/or
if you are dealing with a system where the kernel has been upgraded,
but not libc, you have your choice of either sticking with the
binary_sysctl approach, or calling getrandom directly using the
syscall method; and in that case, whether we use getrandom() or
provide an exact getentropy() replacement system call isn't that much
difference, since you'd have to have Linux-specific workaround code
anyway....

				- Ted

  reply	other threads:[~2014-07-17 17:34 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-17  9:18 [PATCH, RFC] random: introduce getrandom(2) system call Theodore Ts'o
2014-07-17 10:57 ` Hannes Frederic Sowa
2014-07-17 12:52   ` Theodore Ts'o
2014-07-17 13:15     ` Hannes Frederic Sowa
2014-07-17 12:09 ` Tobias Klauser
2014-07-17 12:52   ` Theodore Ts'o
2014-07-17 16:12 ` Christoph Hellwig
2014-07-17 17:01   ` Theodore Ts'o
2014-07-17 17:05     ` Bob Beck
2014-07-17 17:34       ` Theodore Ts'o [this message]
2014-07-17 17:45         ` Bob Beck
2014-07-17 17:46           ` Bob Beck
2014-07-17 17:57             ` Bob Beck
2014-07-17 22:30           ` Theodore Ts'o
2014-07-17 19:56         ` Bob Beck
     [not found]     ` <CAComcpObt4y--GEuAZgzkaDWnrJYBKhwsvqjOkdiXU_yGnV2Tg@mail.gmail.com>
     [not found]       ` <CAComcpObt4y--GEuAZgzkaDWnrJYBKhwsvqjOkdiXU_yGnV2Tg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-07-17 20:43         ` Theodore Ts'o
     [not found]           ` <20140717204340.GS1491-AKGzg7BKzIDYtjvyW6yDsg@public.gmane.org>
2014-07-17 21:44             ` Zach Brown
     [not found]               ` <20140717214450.GE24196-fypN+1c5dIyjpB87vu3CluTW4wlIGRCZ@public.gmane.org>
2014-07-17 22:00                 ` Andy Lutomirski
     [not found]                   ` <CALCETrVC2SVC2BwintZ7P5MvwDO4z0VBe0svpWhVhx7Xgfoeag-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-07-17 22:27                     ` Theodore Ts'o
2014-07-21  0:25     ` Dwayne Litzenberger
2014-07-21  7:18       ` Theodore Ts'o
2014-07-17 19:31 ` Greg KH
2014-07-17 19:33 ` Greg KH
2014-07-17 19:48 ` Zach Brown
     [not found]   ` <20140717194812.GC24196-fypN+1c5dIyjpB87vu3CluTW4wlIGRCZ@public.gmane.org>
2014-07-17 20:54     ` Theodore Ts'o
2014-07-17 20:54       ` Theodore Ts'o
     [not found]       ` <20140717205417.GT1491-AKGzg7BKzIDYtjvyW6yDsg@public.gmane.org>
2014-07-17 21:39         ` Zach Brown
2014-07-17 21:39           ` Zach Brown
2014-07-17 20:27 ` Andy Lutomirski
     [not found]   ` <53C8319A.8090108-kltTT9wpgjJwATOyAt5JVQ@public.gmane.org>
2014-07-17 21:14     ` Theodore Ts'o
2014-07-17 21:14       ` Theodore Ts'o
2014-07-18 16:36 ` Rolf Eike Beer
2014-07-20 15:50 ` Andi Kleen
2014-07-20 17:06   ` Theodore Ts'o
2014-07-20 17:27 ` Andreas Schwab
2014-07-20 17:41   ` Theodore Ts'o
2014-07-21  6:18 ` Dwayne Litzenberger
2014-07-23  8:42 ` Manuel Schölling
  -- strict thread matches above, loose matches on Subject: below --
2014-07-17 18:48 Mark Kettenis
2014-07-17 20:35 ` Andy Lutomirski
2014-07-17 21:28   ` Theodore Ts'o
2014-07-17 21:37     ` Andy Lutomirski
2014-07-17 22:21   ` David Lang
2014-07-20 16:26 George Spelvin
2014-07-20 17:03 ` George Spelvin
2014-07-20 21:32   ` Hannes Frederic Sowa
2014-07-21 11:21     ` George Spelvin
2014-07-21 15:27       ` Hannes Frederic Sowa
2014-07-22  1:02         ` Hannes Frederic Sowa
2014-07-22  4:44           ` Theodore Ts'o
2014-07-22  9:49             ` Hannes Frederic Sowa
2014-07-22 22:59               ` Theodore Ts'o
2014-07-23  9:47                 ` Hannes Frederic Sowa
2014-07-23 11:52                   ` George Spelvin
2014-07-23 12:10                     ` Hannes Frederic Sowa
2014-07-30 12:50                       ` Pavel Machek
2014-07-20 17:24 ` Theodore Ts'o

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