Mark Andrews 3a5652ccb1 Rework rbtdb.c:find_coveringnsec() to use the auxilary nsec rbt ... this improves the performance of looking for NSEC and RRSIG(NSEC) records in the cache by skipping lots of nodes in the main trees in the cache without these records present. This is a simplified version of previous_closest_nsec() which uses the same underlying mechanism to look for NSEC and RRSIG(NSEC) records in authorative zones. The auxilary NSEC tree was already being maintained as a side effect of looking for the covering NSEC in large zones where there can be lots of glue records that needed to be skipped. Nodes are added to the tree whenever a NSEC record is added to the primary tree. They are removed when the corresponding node is removed from the primary tree. Having nodes in the NSEC tree w/o NSEC records in the primary tree should not impact on synth-from-dnssec efficiency as that node would have held the NSEC we would have been needed to synthesise the response. Removing the node when the NSEC RRset expires would only cause rbtdb to return a NSEC which would be rejected at a higher level.		2021-12-02 14:18:40 +01:00
..
bind9	Add 'tls' validation for XoT enabled primaries	2021-12-01 12:00:29 +02:00
dns	Rework rbtdb.c:find_coveringnsec() to use the auxilary nsec rbt	2021-12-02 14:18:40 +01:00
irs	Check parsed resconf values	2021-08-12 09:52:52 -07:00
isc	Improve the logging on failed TCP accept	2021-12-02 13:50:00 +01:00
isccc	Use #pragma once as header guards	2021-10-13 00:49:15 -07:00
isccfg	Integrate extended ACLs syntax featuring 'port' and 'transport' opts	2021-11-30 12:20:22 +02:00
ns	Integrate extended ACLs syntax featuring 'port' and 'transport' opts	2021-11-30 12:20:22 +02:00
.gitignore	The isc/platform.h header has been completely removed	2021-07-06 05:33:48 +00:00
Makefile.am	move samples/resolve.c to bin/tests/system	2021-04-16 14:29:43 +02:00
unit-test-driver.sh.in	Enforce a run time limit on unit test binaries	2021-04-07 11:41:45 +02:00