We need to think about the API carefully.

- fix some edge cases and nitpicks
- static storage -> stack (for temporaries of a few kilobytes)
- sync docs, including caveats of the implementation

Anbang Wen authored 6 years ago and Vladimír Čunát committed 6 years ago

1. Restore two cache op which got dropped in 2.0;
2. Add kr_unpack_cache_key to parse cache key;
3. Fix the lua binding for cache.get and cache.clear.

Source was kept for historical reasons but was not in use since 2.0.0.
It is now clear that there are better approaches to implement
distributed cache so it is pointless to keep old stuff in tree and
confuse users.

Revert "kr_nsec_bitmap_contains_type(): moved to libdnssec"

See merge request knot/knot-resolver!655

This reverts commit c13fe1f8.
It turns out there's a bug in dnssec_nsec_bitmap_contains() (2.7.{0,1})

ta_sentinel: also consider static trust anchors

See merge request knot/knot-resolver!654

i.e. those not managed via RFC 5011.
The verbose log format is changed a bit, consequently.

Rebrand to "Knot Resolver"

See merge request knot/knot-resolver!652

Let's see if it helps against confusion with "Knot DNS" authoritative
server or not.

Previously we were using names "Knot DNS Resolver" and "Knot Resolver"
interchangibly and the prefix "Knot DNS" was somehow confusing users.
Let's see if this rebranding actually helps or not.

knot 2.7

See merge request knot/knot-resolver!630

I intentionally didn't mark the function names as code or similar,
as changing formatting every other word seemed too visually distracting.

It's never been used apparently, since its introduction in 5b288464.
This commit doesn't depend on knot being 2.7 at all.

As Marek noted, the option is meant to fix bad stub-resolvers,
and those may not put good randomness into the ID.

... thanks to new API in libknot-2.7.
Apart from being simpler, it now rotates even uncached answers.

This second part of API replacement in particular lengthens the code,
but I hope the new expression will be easier to understand at least.

When at it, switch to generating the libzscanner bindings.