Hi Florian,
On Fri, Jul 28, 2023 at 09:56:14PM +0200, Florian Westphal wrote:
> Hi,
>
> I wanted to allow creating objref maps that
> return "ct timeout" or "ct helper" templates.
>
> However:
> map .. {
> type ipv4_addr : ct timeout
>
> The above is fine, but this is not:
>
> map .. {
> type ipv4_addr : ct helper
This is type, not typeof, is it intentional?
> It caues ambiguity in parser due to existing
> "ct helper" expression, as in
> "nft describe ct helper", not the freestanding
> objref name.
>
> I could just allow:
> type ipv4_addr : helper
>
> ... without "ct", but then we'd require different
> keywords for the definition and the use as data
> element in the key definition, and its inconsistent
> with "ct timeout".
>
> Should we add a new explicit keyword for
> *both* objref names and the data element usage?
>
> Perhaps:
>
> object type ct helper "sip-external" {
> ....
>
> And
> type ipv4_addr : object type ct helper
>
> ?
>
> Any better ideas or suggesions on a sane syntax to avoid this?
This works fine with typeof:
table ip x {
map x {
typeof ip saddr : ct helper
}
}
it seems typeof support for 'ct timeout' is missing?
Thanks for reporting.
