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[master] change hash function for RRL

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4709.	[cleanup]	Use dns_name_fullhash() to hash names for RRL.
			[RT #45435]
This commit is contained in:
Evan Hunt
2017-09-08 15:46:15 -07:00
parent 8eb88aafee
commit f13385770e
3 changed files with 12 additions and 5 deletions
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3
CHANGES
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@@ -1,3 +1,6 @@
4709. [cleanup] Use dns_name_fullhash() to hash names for RRL.
[RT #45435]
4708. [cleanup] Legacy Windows builds (i.e. for XP and earlier) 4708. [cleanup] Legacy Windows builds (i.e. for XP and earlier)
are no longer supported. [RT #45186] are no longer supported. [RT #45186]

6
lib/dns/include/dns/name.h
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@@ -353,7 +353,11 @@ unsigned int
dns_name_hashbylabel(const dns_name_t *name, isc_boolean_t case_sensitive); dns_name_hashbylabel(const dns_name_t *name, isc_boolean_t case_sensitive);
/*%< /*%<
* Provide a hash value for 'name', where the hash value is the sum * Provide a hash value for 'name', where the hash value is the sum
* of the hash values of each label. * of the hash values of each label. This function should only be used
* when incremental hashing is necessary, for example, during RBT
* traversal. It is not currently used in BIND. Generally,
* dns_name_fullhash() is the correct function to use for name
* hashing.
* *
* Note: if 'case_sensitive' is ISC_FALSE, then names which differ only in * Note: if 'case_sensitive' is ISC_FALSE, then names which differ only in
* case will have the same hash value. * case will have the same hash value.

8
lib/dns/rrl.c
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@@ -417,11 +417,11 @@ make_key(const dns_rrl_t *rrl, dns_rrl_key_t *key,
{ {
dns_name_init(&base, base_offsets); dns_name_init(&base, base_offsets);
dns_name_getlabelsequence(qname, 1, labels-1, &base); dns_name_getlabelsequence(qname, 1, labels-1, &base);
key->s.qname_hash = dns_name_hashbylabel(&base, key->s.qname_hash =
ISC_FALSE); dns_name_fullhash(&base, ISC_FALSE);
} else { } else {
key->s.qname_hash = dns_name_hashbylabel(qname, key->s.qname_hash =
ISC_FALSE); dns_name_fullhash(qname, ISC_FALSE);
} }
} }