Re: [PATCH iptables-nft] extensions: add xt_statistics random mode translation

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Phil Sutter <phil@xxxxxx> wrote:
> On Thu, Dec 01, 2022 at 11:13:17AM +0100, Florian Westphal wrote:
> > Use meta random and bitops to replicate what xt_statistics
> > is doing.
> 
> I didn't know about 'meta random', even though it's a bit older than
> numgen. What's the difference to 'numgen random'?

META_RANDOM is simpler. its really just setting a 32bit register to a
32bit random value.

No modulus, offset or anything like that is supported.

For most users, numgen random is much better because you can generate a
random number within a given range.

But this translation really does match exactly what xt_statistics is
doing.

> I'm asking because I
> once tried to fix the same issue using the latter[1], it was never
> applied, though.
> 
> Maybe you could reuse gcd_div() from my patch to reduce nominal values?

Why?  If you prefer numgen, maybe just rebase your patch and push it out?



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