When dnssec-policy was introduced, it implicitly set inline-signing.
But DNSSEC maintenance required either inline-signing to be enabled,
or a dynamic zone. In other words, not in all cases you want to
DNSSEC maintain your zone with inline-signing.
Change the behavior and determine whether inline-signing is
required: if the zone is dynamic, don't use inline-signing,
otherwise implicitly set it.
You can also explicitly set inline-signing to yes with dnssec-policy,
the restriction that both inline-signing and dnssec-policy cannot
be set at the same time is now lifted.
However, 'inline-signing no;' on a non-dynamic zone with a
dnssec-policy is not possible.
(cherry picked from commit 644f0d958a)
This commit introduces the initial `dnssec-policy` configuration
statement. It has an initial set of options to deal with signature
and key maintenance.
Add some checks to ensure that dnssec-policy is configured at the
right locations, and that policies referenced to in zone statements
actually exist.
Add some checks that when a user adds the new `dnssec-policy`
configuration, it will no longer contain existing DNSSEC
configuration options. Specifically: `inline-signing`,
`auto-dnssec`, `dnssec-dnskey-kskonly`, `dnssec-secure-to-insecure`,
`update-check-ksk`, `dnssec-update-mode`, `dnskey-sig-validity`,
and `sig-validity-interval`.
Test a good kasp configuration, and some bad configurations.
