Re: [PATCH, RFC] random: introduce getrandom(2) system call

From: Bob Beck
Date: Thu Jul 17 2014 - 13:47:14 EST


And thanks btw.

I don't suppose you guys know who we should talk to about possibly
getting MAP_INHERIT_ZERO minherit() support?

On Thu, Jul 17, 2014 at 11:45 AM, Bob Beck <beck@xxxxxxxxxxx> wrote:
> we have diffs pending that will do the syscall method until we start
> to see it in libc :)
>
> So basically we're going to put that in right away :)
>
> On Thu, Jul 17, 2014 at 11:34 AM, Theodore Ts'o <tytso@xxxxxxx> wrote:
>> 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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/