Unable to create a chain called "trace"

[Martin Gignac <martin.gignac@xxxxxxxxx>]

Hi,

Out of curiosity, is there a reason why calling a chain "trace"
results in an error?

This configuration:

  chain trace {
    type filter hook prerouting priority -301;
    ip daddr 24.153.88.9 ip protocol icmp meta nftrace set 1
  }

Results in the following error when I try loading the ruleset:

  /etc/firewall/rules.nft:40:9-13: Error: syntax error, unexpected
trace, expecting string
  chain trace {
        ^^^^^
Calling the chain anything else doesn't give this error.

Is 'trace' some sort of reserved keyword? I thought chains could be
called anything. Can they not?

This is on nftables 0.9.8.

Thanks,
-Martin