Re: [PATCH nft 0/3] typeof incremental enhancements

[Florian Westphal <fw@strlen.de>]

Pablo Neira Ayuso <pablo@netfilter.org> wrote:
> Hi Florian,
> 
> This patchset removes the need to self invoke the parser and the
> evaluation to fetch the datatype. Instead, the expression type and
> the expression description are stored into the userdata area.
> 
> This patch only supports for the payload expression, but it should be
> relatively easy to extend it to support for other existing expressions
> types.
> 
> This patch could be squashed into 06/11 src: add "typeof" print support
> of your patch series, which is actually not just adding support for
> printing but also for building the userdata.

I had considered that but found that storing netlink data
needs more space in the udata area compared to text and it needs more/extra
parsing for serialize/deserialize, so I abandoned this idea.

If you think its the way to go, then ok, I can rework it but
I will be unable to add the extra steps for other expression types
for some time I fear.