How to concatenate subnet with port in a set?

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Hello!
I am currently using <nftables v0.9.0 (Fearless Fosdick)> on Debian 10 (Buster). For a whitelist, I thought about a set like this:
1> set whitelist_ipv4_tcp {2>     type inet_service . ipv4_addr3>     elements = {4>      22 . 255.255.255.255,5>      22 . 255.255.255.0/246>     }7> }
You can see, that on line 5 I used a port concatenated by an IPv4 subnet. Unfortunately, this will not work. I could use subnets, but only as a simple unconcatenated set.
My question is: When will it be possible to concatenate subnets with different types such as inet_service (= port) in sets? Or is it already possible in a newer version than 0.9.0?


--etkaar





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