Re: [knot-dns-users] Modules and CNAME chain resolution

Hi, I noticed that when using e.g the GeoIP module to return a CNAME, that CNAME does not get resolved, even if it is within the instances authority. That forces the client/recursor to issue another request. Perusing the code for a while, I noticed that there is a rather simple way to achieve this: the GeoIP module, if the result is a CNAME, _could_ set `qdata->name` to the CNAME target and return `KNOT_IN_STATE_FOLLOW` instead of `KNOT_IN_STATE_HIT`. While that does seem to work, I am not so sure if it might constitute an abuse of interfaces. Returning `KNOT_IN_STATE_FOLLOW` seems legit, but I wasn't so sure about modifying `qdata` (specifically, in the context of a module). As such, I would be interested if this has ever come up before, what possible approaches might look like, what you think of the above one, and if tackling this problem is of interest at all. If I have a better understanding and there is a good approach to this, I'd be happy to submit a patch. Thanks a lot, Conrad