Re: [PATCH v3] extensions: libxt_statistic: Add translation to nft

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Jan Engelhardt <jengelh@xxxxxxx> wrote:
> 
> On Wednesday 2016-03-02 15:50, Florian Westphal wrote:
> >> 
> >> "--probability" is meant to represent saying "with a probability
> >> of p=10%, ...". This does not mandate any particular operator.
> >
> >So my suggestion is this:
> >
> >for nft v2 of meta random support:
> >
> >- keep the 'implicit LE op' behaviour so that
> >meta random 0.1 means '10% probability of matching'.
> >- change display to hide the LE detail from the user, i.e.
> >don't show 'meta random le 0.1' but 'meta random 0.1'.
> >[ I agree with Jan, its detail, users can still see this
> >with debug output on ].
> 
> What I implied is that the operator ought to completely disappear,
> also from the netlink exchange. Let the random module take
> just p at the user-kernel boundary, like xt_statistic.c did.

This is what I want to avoid.

Right now meta random is 6 lines of kernel code;
It just fills a 32bit register with prandom_u32 result.
Everything else can be modeled with the nf_tables engine.

And I think thats the right approach, adding an nft_random
expression seems overkill.
--
To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Netfitler Users]     [LARTC]     [Bugtraq]     [Yosemite Forum]

  Powered by Linux