This commit converts the license handling to adhere to the REUSE
specification. It specifically:
1. Adds used licnses to LICENSES/ directory
2. Add "isc" template for adding the copyright boilerplate
3. Changes all source files to include copyright and SPDX license
header, this includes all the C sources, documentation, zone files,
configuration files. There are notes in the doc/dev/copyrights file
on how to add correct headers to the new files.
4. Handle the rest that can't be modified via .reuse/dep5 file. The
binary (or otherwise unmodifiable) files could have license places
next to them in <foo>.license file, but this would lead to cluttered
repository and most of the files handled in the .reuse/dep5 file are
system test files.
The additional processing method has been expanded to take the
owner name of the record, as HTTPS and SVBC need it to process "."
in service form.
The additional section callback can now return the RRset that was
added. We use this when adding CNAMEs. Previously, the recursion
would stop if it detected that a record you added already exists. With
CNAMEs this rule doesn't work, as you ultimately care about the RRset
at the target of the CNAME and not the presence of the CNAME itself.
Returning the record allows the caller to restart with the target
name. As CNAMEs can form loops, loop protection was added.
As HTTPS and SVBC can produce infinite chains, we prevent this by
tracking recursion depth and stopping if we go too deep.
These two tests were failing basically because in order for prefetching to
happen, the TTL for a given DNS record must be greater than or equal to
the prefetch config value + 9.
The previous TTL for both records was 10, while prefetch value in
configuration was 3, thus making only records with TTL >= 12 elligible
for prefetching.
TTL value for both records was adjusted to the value 13, and prefetch
value was set to 4 (inc by 1), so records with TTL (4 + 9) >= 13 are
elligible for prefetching.
Adjusting prefetch value to 4 gives the test 1 second more to avoid time
problems when sharing resources on a heavy loaded PC.
Also prefetch value in settings is now read by the script and used
by it to corrrectly calculate the amount of time needed to delay before
sending a request to trigger prefetch, adding a bit of flexibility to
fine tune the test in the future.
any matching RRSIG records. A subsequent lookup of
of NO DATA cache entry could trigger a INSIST when the
unexpected RRSIG was also returned with the NO DATA
cache entry. [RT #22288]
