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Re: Fixing Linux getrandom() in stable

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Hi Russ

Am 10.05.2018 um 19:22 schrieb Russ Allbery:
> Michael Biebl <biebl@debian.org> writes:
>> Am 10.05.2018 um 00:46 schrieb Ben Hutchings:
> 
>>> One of the krb5 maintainers (Benjamin Kaduk) favours option 2b, and
>>> also proposed that systemd could provide a wait-for-rng-ready unit to
>>> support this.
> 
>> What exactly would such a wait-for-rng-ready service do and how would it
>> solve this particular problem?
> 
> I may be misunderstanding the nature of the issue, but I believe that a
> Type=oneshot service that runs a small C program that calls getrandom()
> and then exit(0) when it returns would provide a useful facility.
> krb5-kdc could then just declare a dependency on that service and wouldn't
> be started until randomness was available.

So we'd shift the waiting for randomness-to-be-available from one
service to another? I don't quite see yet, where the benefit is in that.
What's better if a wait-for-rng-ready binary blocks on getrandom()
instead of the krb5-kdc binary itself? We wouldn't shorten the time we
have to wait this way.



-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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Thread

Fixing Linux getrandom() in stable Ben Hutchings <ben@decadent.org.uk> - 2018-05-10 00:50 +0200
  Re: Fixing Linux getrandom() in stable Michael Biebl <biebl@debian.org> - 2018-05-10 15:50 +0200
    Re: Fixing Linux getrandom() in stable Russ Allbery <rra@debian.org> - 2018-05-10 19:30 +0200
      Re: Fixing Linux getrandom() in stable Michael Biebl <biebl@debian.org> - 2018-05-10 19:40 +0200
        Re: Fixing Linux getrandom() in stable Russ Allbery <rra@debian.org> - 2018-05-10 19:50 +0200
          Re: Fixing Linux getrandom() in stable Ian Campbell <ijc@debian.org> - 2018-05-10 21:20 +0200
        Re: Fixing Linux getrandom() in stable Benjamin Kaduk <kaduk@mit.edu> - 2018-05-10 19:50 +0200
  Re: Fixing Linux getrandom() in stable Yves-Alexis Perez <corsac@debian.org> - 2018-05-13 11:30 +0200
    Re: Fixing Linux getrandom() in stable Ben Hutchings <ben@decadent.org.uk> - 2018-05-13 19:20 +0200
  Re: Fixing Linux getrandom() in stable Adrian Bunk <bunk@debian.org> - 2018-05-13 22:50 +0200
    Re: Fixing Linux getrandom() in stable Thorsten Glaser <tg@mirbsd.de> - 2018-05-13 23:40 +0200
      Re: Fixing Linux getrandom() in stable Thorsten Glaser <tg@mirbsd.de> - 2018-05-14 03:00 +0200
      Re: Fixing Linux getrandom() in stable "Theodore Y. Ts'o" <tytso@mit.edu> - 2018-05-14 03:20 +0200
      Re: Fixing Linux getrandom() in stable Sam Hartman <hartmans@debian.org> - 2018-05-14 15:20 +0200
    Re: Fixing Linux getrandom() in stable Ben Hutchings <ben@decadent.org.uk> - 2018-05-14 04:20 +0200
      Re: Fixing Linux getrandom() in stable Adrian Bunk <bunk@debian.org> - 2018-05-22 21:50 +0200

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