From: Theodore Ts'o <tytso@mit.edu>
To: Andreas Schwab <schwab@linux-m68k.org>
Cc: linux-kernel@vger.kernel.org, linux-abi@vger.kernel.org,
linux-crypto@vger.kernel.org, beck@openbsd.org
Subject: Re: [PATCH, RFC] random: introduce getrandom(2) system call
Date: Sun, 20 Jul 2014 13:41:04 -0400 [thread overview]
Message-ID: <20140720174104.GH5017@thunk.org> (raw)
In-Reply-To: <87tx6cvt2p.fsf@igel.home>
On Sun, Jul 20, 2014 at 07:27:42PM +0200, Andreas Schwab wrote:
> Theodore Ts'o <tytso@mit.edu> writes:
>
> > ERRORS
> > EINVAL The buflen value was invalid.
>
> Also on unknown flags? Without that it would be impossible to probe for
> implemented flags.
We removed the cap on the buflen size (although if someone gives
something insanely large, it can get capped), so EINVAL will only
happen for unknown flags. I'll fix the suggested man page.
- Ted
P.S. The reason why OpenBSD had a very strong opinion about returning
EIO for buflen greater than 256 bytes was they really wanted to pound
it into application writers than if they were trying to fetch more
than 256 bytes, they were probably Doing Something Wrong, and they
decided EIO was less subtle that EINVAL....
next prev parent reply other threads:[~2014-07-20 17:41 UTC|newest]
Thread overview: 50+ 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
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
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
[not found] ` <20140717205417.GT1491-AKGzg7BKzIDYtjvyW6yDsg@public.gmane.org>
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
2014-07-18 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 [this message]
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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