- Fix cache update when serve expired is used in order to not evict
still usable expired records. Modules are forbidden to update the
cache if their answer is DNSSEC unchecked or bogus and a valid
(expired) entry already exists. Bogus replies from the validator are
also discarded in favor of existing (expired) valid replies.
- serve-expired-ttl-reset should try to keep expired records in the
cache in case they are reset.
subnet module deletes global cache and cachedb cache when it
stores a result, and serve-expired is enabled, so that the global
reply, that is older than the ecs reply, does not return after
the ecs reply expires.
- Added serve-stale functionality as described in
draft-ietf-dnsop-serve-stale-10. `serve-expired-*` options can be used
to configure the behavior.
- Updated cachedb to honor `serve-expired-ttl`; Fixes#107.
- Renamed statistic `num.zero_ttl` to `num.expired` as expired replies
come with a configurable TTL value (`serve-expired-reply-ttl`).
- Fixed stats when replying with cached, cname-aliased records.
- Added missing default values for redis cachedb backend.
gives access to reply information for the client's communication
point when the callback is called before the mesh state (modules).
Changes to C and Python's inplace_callback signatures were also
necessary.
git-svn-id: file:///svn/unbound/trunk@4870 be551aaa-1e26-0410-a405-d3ace91eadb9
ratelimiting) to libunbound under 'ub_result.was_ratelimited'.
This also introduces a change to 'ub_event_callback_type' in
libunbound/unbound-event.h.
- Tidy pylib tests.
git-svn-id: file:///svn/unbound/trunk@4828 be551aaa-1e26-0410-a405-d3ace91eadb9
(patch from Jinmei Tatuya).
- trigger refetching of the answer in that case (this will bypass
cachedb lookup)
- allow storing a 0-TTL answer from cachedb in the in-memory message
cache when serve-expired is yes
git-svn-id: file:///svn/unbound/trunk@4353 be551aaa-1e26-0410-a405-d3ace91eadb9
- (de)register inplace callbacks for module id
- No unbound-control set_option for ECS options
- Deprecated client-subnet-opcode config option
- Introduced client-subnet-always-forward config option
- Changed max-client-subnet-ipv6 default to 56 (as in RFC)
- Removed extern ECS config options
- module_restart_next now calls clear on all following modules
- Also create ECS module qstate on module_event_pass event
git-svn-id: file:///svn/unbound/trunk@4092 be551aaa-1e26-0410-a405-d3ace91eadb9
