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author	Yorgos Thessalonikefs <yorgos@nlnetlabs.nl>
	Tue, 24 Sep 2024 14:47:04 +0000 (16:47 +0200)
committer	GitHub <noreply@github.com>
	Tue, 24 Sep 2024 14:47:04 +0000 (16:47 +0200)
commit	2e398d51ba72ca824473b6528a43f53784108d67
tree	4df470f8599ac71102a625a94ab563bef55c3cc8	tree \| snapshot
parent	24ebca7df6039ddcff52884c19db846024d162a4	commit \| diff

Fix cache update when serve expired is used (#1143)

- 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.

24 files changed:

cachedb/cachedb.c		diff \| blob \| blame \| history
daemon/remote.c		diff \| blob \| blame \| history
daemon/worker.c		diff \| blob \| blame \| history
dns64/dns64.c		diff \| blob \| blame \| history
iterator/iterator.c		diff \| blob \| blame \| history
services/cache/dns.c		diff \| blob \| blame \| history
services/cache/rrset.c		diff \| blob \| blame \| history
services/mesh.c		diff \| blob \| blame \| history
services/mesh.h		diff \| blob \| blame \| history
services/rpz.c		diff \| blob \| blame \| history
testcode/unitmain.c		diff \| blob \| blame \| history
testdata/serve_expired_cached_servfail.rpl		diff \| blob \| blame \| history
testdata/serve_expired_cached_servfail_refresh.rpl		diff \| blob \| blame \| history
testdata/serve_expired_client_timeout_servfail.rpl		diff \| blob \| blame \| history
testdata/serve_expired_client_timeout_val_bogus.rpl	[new file with mode: 0644]	blob
testdata/serve_expired_client_timeout_val_insecure_delegation.rpl	[new file with mode: 0644]	blob
testdata/serve_expired_ttl_reset.rpl	[new file with mode: 0644]	blob
testdata/serve_expired_val_bogus.rpl	[new file with mode: 0644]	blob
util/config_file.c		diff \| blob \| blame \| history
util/data/msgparse.h		diff \| blob \| blame \| history
util/data/msgreply.c		diff \| blob \| blame \| history
util/data/msgreply.h		diff \| blob \| blame \| history
util/module.h		diff \| blob \| blame \| history
validator/validator.c		diff \| blob \| blame \| history

Mirror of https://github.com/NLnetLabs/unbound.git

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