- Introduce new 'tls-protocols' configuration option that specifies
which of the supported TLS protocols will be used.
This change invalidates some previous changes:
- TLSv1.2 is again enabled by default, but can be selectively turned off if
desired (related to #1303).
- The biefly introduced (not yet released) 'tls-use-system-versions'
configuration option, that addressed #1346, is reverted in favor of
'tls-protocols'.
- The briefly introduced (not yet released) '--enable-system-tls'
configure option, related to #1401, is no longer needed with the new
option and the current default.
- Review comment for checking out of memory condition
Co-authored-by: Wouter Wijngaards <wcawijngaards@users.noreply.github.com>
an overly large number of RRSIGs. It can be configured with
`iter-scrub-rrsig: 8`, it has default 8. Thanks to Yuxiao Wu,
Tsinghua University for the report.
the global cache after a failed lookup, such as timeouts. A failure
entry is stored in the subnet cache, for the query name, for a
couple of seconds. Queries can continue to use the subnet cache
during that time.
* - stats-shm-volley, with mesh_time_median the additions add up to the correct
average that is used.
* - stats-shm-volley, the stat interval is selected with offset.
* - stats-shm-volley, stat totals in separate struct. The first thread zeroes
it, and the last thread copies it.
* - stats-shm-volley, the array is inited for a new round if one or more
* - stats-shm-volley, the array is inited for a new round if one or more
threads are not responsive for stat collection.
* - stats-shm-volley review, typos and slightly more detailed text for comments.
---------
Co-authored-by: Yorgos Thessalonikefs <yorgos@nlnetlabs.nl>
and to check the RR rdata field lengths when decompressing and
inserting RRs from an authority zone transfer. This stops
large memory use and heap buffer-overflow read errors. Thanks
to Haruto Kimura (Stella) for the report.
When the scrubber synthesizes a CNAME from a DNAME (authority omits CNAME),
apply cache-min-ttl/cache-max-ttl to both DNAME and synthesized CNAME in
msg_parse so they stay equal and respect config (RFC 6672).
- iterator/iter_scrub.c: In synth_cname_rrset(), clamp TTL to [MIN_TTL,
MAX_TTL] when !SERVE_ORIGINAL_TTL and write back to both synth CNAME
and DNAME rrset. Removes FIXME.
Thanks to Kunta Chu, School of Software, Tsinghua University,
Taofei Guo, Peking University, and Jianjun Chen, Institute for
Network Sciences and Cyberspace, Tsinghua University for the
report. The private-address option is fixed to also elide
SVCB and HTTPS records that match the filter.
W.C.A. Wijngaards