linux-kernel - Re: [RFC PATCH 0/4] random: a simple vDSO mechanism for reseeding userspace CSPRNGs

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Message-ID: <CAHmME9oXB8=jUz98tv6k1xS+ELaRmgartoT6go_1axhH1L-HJg@mail.gmail.com>
Date:   Thu, 12 Jan 2023 18:07:05 +0100
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     ydroneaud@...eya.com
Cc:     "Theodore Ts'o" <tytso@....edu>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Andy Lutomirski <luto@...nel.org>,
        Vincenzo Frascino <vincenzo.frascino@....com>, x86@...nel.org,
        linux-crypto@...r.kernel.org, linux-api@...r.kernel.org,
        linux-kernel@...r.kernel.org, Florian Weimer <fweimer@...hat.com>,
        Adhemerval Zanella Netto <adhemerval.zanella@...aro.org>,
        "Carlos O'Donell" <carlos@...hat.com>
Subject: Re: [RFC PATCH 0/4] random: a simple vDSO mechanism for reseeding
 userspace CSPRNGs

Sorry Yann, but I'm not interested in this approach, and I don't think
reviewing the details of it are a good allocation of time. I don't
want to lock the kernel into having specific reseeding semantics that
are a contract with userspace, which is what this approach does.
Please just let me iterate on my original patchset for a little bit,
without adding more junk to the already overly large conversation.