Michał Kępień 170b869294 Fix updating summary RPZ DB for mixed-case RPZs ... Each dns_rpz_zone_t structure keeps a hash table of the names this RPZ database contains. Here is what happens when an RPZ is updated: - a new hash table is prepared for the new version of the RPZ by iterating over it; each name found is added to the summary RPZ database, - every name added to the new hash table is searched for in the old hash table; if found, it is removed from the old hash table, - the old hash table is iterated over; all names found in it are removed from the summary RPZ database (because at that point the old hash table should only contain names which are not present in the new version of the RPZ), - the new hash table replaces the old hash table. When the new version of the RPZ is iterated over, if a given name is spelled using a different letter case than in the old version of the RPZ, the new variant will hash to a different value than the old variant, which means it will not be removed from the old hash table. When the old hash table is subsequently iterated over to remove seemingly deleted names, the old variant of the name will still be there, causing the name to be deleted from the summary RPZ database (which effectively causes a given rule to be ignored). The issue can be triggered not just by altering the case of existing names in an RPZ, but also by adding sibling names spelled with a different letter case. This is because RBT code preserves case when node splitting occurs. The end result is that when the RPZ is iterated over, a given name may be using a different case than in the zone file (or XFR contents). Fix by downcasing all names found in the RPZ database before adding them to the summary RPZ database. (cherry picked from commit dc8a7791bd)		2020-09-21 09:32:21 +02:00
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check	update all copyright headers to eliminate the typo	2020-09-14 16:50:58 -07:00
confgen	update all copyright headers to eliminate the typo	2020-09-14 16:50:58 -07:00
delv	update all copyright headers to eliminate the typo	2020-09-14 16:50:58 -07:00
dig	update all copyright headers to eliminate the typo	2020-09-14 16:50:58 -07:00
dnssec	update all copyright headers to eliminate the typo	2020-09-14 16:50:58 -07:00
named	Lock access to control->symtab to prevent data race	2020-09-17 19:31:41 +10:00
nsupdate	update all copyright headers to eliminate the typo	2020-09-14 16:50:58 -07:00
pkcs11	update all copyright headers to eliminate the typo	2020-09-14 16:50:58 -07:00
plugins	update all copyright headers to eliminate the typo	2020-09-14 16:50:58 -07:00
python	update all copyright headers to eliminate the typo	2020-09-14 16:50:58 -07:00
rndc	update all copyright headers to eliminate the typo	2020-09-14 16:50:58 -07:00
tests	Fix updating summary RPZ DB for mixed-case RPZs	2020-09-21 09:32:21 +02:00
tools	update all copyright headers to eliminate the typo	2020-09-14 16:50:58 -07:00
win32/BINDInstall	update all copyright headers to eliminate the typo	2020-09-14 16:50:58 -07:00
Makefile.in	name change from "hook modules" to "plugins"	2018-12-06 10:36:50 -08:00