Support 'key' statements in address_match_element statements

[antiduh]

Could you add support for "key" statement in address_match_element statements?

These are handy, for instance, in 'match-client' clauses in views to plumb views through filtering tools, for instance, OpenDNSSEC, without having to use extra IP addresses (or extra 127/8 addresses).

For example:

view "lab-unsigned" {
    match-clients { key "lab-outgoing"; };
    zone "lab.example.com" {
        type master;
        file "lab.example.com.zone";
        allow-transfer { key "lab-outgoing"; };
        also-notify {
            127.0.0.1 port 5353 key "lab-outgoing";
        };
    };
};

[WillyXJ]

I did not know BIND supported that. I will look into the best way of fmDNS to support it.

[WillyXJ]

Changed submitted and will be included in v2.0.