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Add bindrdatasets() function that binds both rdatasets

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This removes code duplication between the dual bindrdataset() calls.  It
also unifies the handling as there were small differences between the
calls: one variant was checking for !NEGATIVE(found) condition and one
wasn't, and it is technically ok to do the check for all variants.
This commit is contained in:
Ondřej Surý
2025-02-02 19:29:53 +01:00
committed by Evan Hunt
parent 53d9ef5bd0
commit 4448f1adb2
1 changed files with 50 additions and 67 deletions
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117
lib/dns/qpcache.c
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@@ -1142,6 +1142,20 @@ bindrdataset(qpcache_t *qpdb, qpcnode_t *node, dns_slabheader_t *header,
}
}
static void
bindrdatasets(qpcache_t *qpdb, qpcnode_t *qpnode, dns_slabheader_t *found,
dns_slabheader_t *foundsig, isc_stdtime_t now,
isc_rwlocktype_t nlocktype, isc_rwlocktype_t tlocktype,
dns_rdataset_t *rdataset,
dns_rdataset_t *sigrdataset DNS__DB_FLARG) {
bindrdataset(qpdb, qpnode, found, now, nlocktype, tlocktype,
rdataset DNS__DB_FLARG_PASS);
if (!NEGATIVE(found) && foundsig != NULL) {
bindrdataset(qpdb, qpnode, foundsig, now, nlocktype, tlocktype,
sigrdataset DNS__DB_FLARG_PASS);
}
}
static isc_result_t
setup_delegation(qpc_search_t *search, dns_dbnode_t **nodep,
dns_rdataset_t *rdataset, dns_rdataset_t *sigrdataset,
@@ -1174,15 +1188,10 @@ setup_delegation(qpc_search_t *search, dns_dbnode_t **nodep,
isc_rwlock_t *nlock =
&search->qpdb->buckets[node->locknum].lock;
NODE_RDLOCK(nlock, &nlocktype);
bindrdataset(search->qpdb, node, search->zonecut_header,
search->now, nlocktype, tlocktype,
rdataset DNS__DB_FLARG_PASS);
if (sigrdataset != NULL && search->zonecut_sigheader != NULL) {
bindrdataset(search->qpdb, node,
search->zonecut_sigheader, search->now,
nlocktype, tlocktype,
sigrdataset DNS__DB_FLARG_PASS);
}
bindrdatasets(search->qpdb, node, search->zonecut_header,
search->zonecut_sigheader, search->now, nlocktype,
tlocktype, rdataset,
sigrdataset DNS__DB_FLARG_PASS);
NODE_UNLOCK(nlock, &nlocktype);
}
@@ -1419,15 +1428,10 @@ find_deepest_zonecut(qpc_search_t *search, qpcnode_t *node,
isc_rwlocktype_none DNS__DB_FLARG_PASS);
*nodep = (dns_dbnode_t *)node;
}
bindrdataset(search->qpdb, node, found, search->now,
nlocktype, isc_rwlocktype_none,
rdataset DNS__DB_FLARG_PASS);
if (foundsig != NULL) {
bindrdataset(search->qpdb, node, foundsig,
search->now, nlocktype,
isc_rwlocktype_none,
sigrdataset DNS__DB_FLARG_PASS);
}
bindrdatasets(search->qpdb, node, found, foundsig,
search->now, nlocktype,
isc_rwlocktype_none, rdataset,
sigrdataset DNS__DB_FLARG_PASS);
if (need_headerupdate(found, search->now) ||
(foundsig != NULL &&
need_headerupdate(foundsig, search->now)))
@@ -1542,13 +1546,9 @@ find_coveringnsec(qpc_search_t *search, const dns_name_t *name,
}
}
if (found != NULL) {
bindrdataset(search->qpdb, node, found, search->now, nlocktype,
isc_rwlocktype_none, rdataset DNS__DB_FLARG_PASS);
if (foundsig != NULL) {
bindrdataset(search->qpdb, node, foundsig, search->now,
nlocktype, isc_rwlocktype_none,
sigrdataset DNS__DB_FLARG_PASS);
}
bindrdatasets(search->qpdb, node, found, foundsig, search->now,
nlocktype, isc_rwlocktype_none, rdataset,
sigrdataset DNS__DB_FLARG_PASS);
qpcnode_acquire(search->qpdb, node, nlocktype,
isc_rwlocktype_none DNS__DB_FLARG_PASS);
@@ -1847,19 +1847,16 @@ qpcache_find(dns_db_t *db, const dns_name_t *name, dns_dbversion_t *version,
tlocktype DNS__DB_FLARG_PASS);
*nodep = (dns_dbnode_t *)node;
}
bindrdataset(search.qpdb, node, nsecheader, search.now,
nlocktype, tlocktype,
rdataset DNS__DB_FLARG_PASS);
bindrdatasets(search.qpdb, node, nsecheader, nsecsig,
search.now, nlocktype, tlocktype,
rdataset, sigrdataset DNS__DB_FLARG_PASS);
if (need_headerupdate(nsecheader, search.now)) {
update = nsecheader;
}
if (nsecsig != NULL) {
bindrdataset(search.qpdb, node, nsecsig,
search.now, nlocktype, tlocktype,
sigrdataset DNS__DB_FLARG_PASS);
if (need_headerupdate(nsecsig, search.now)) {
updatesig = nsecsig;
}
if (nsecsig != NULL &&
need_headerupdate(nsecsig, search.now))
{
updatesig = nsecsig;
}
result = DNS_R_COVERINGNSEC;
goto node_exit;
@@ -1891,19 +1888,16 @@ qpcache_find(dns_db_t *db, const dns_name_t *name, dns_dbversion_t *version,
tlocktype DNS__DB_FLARG_PASS);
*nodep = (dns_dbnode_t *)node;
}
bindrdataset(search.qpdb, node, nsheader, search.now,
nlocktype, tlocktype,
rdataset DNS__DB_FLARG_PASS);
bindrdatasets(search.qpdb, node, nsheader, nssig,
search.now, nlocktype, tlocktype,
rdataset, sigrdataset DNS__DB_FLARG_PASS);
if (need_headerupdate(nsheader, search.now)) {
update = nsheader;
}
if (nssig != NULL) {
bindrdataset(search.qpdb, node, nssig,
search.now, nlocktype, tlocktype,
sigrdataset DNS__DB_FLARG_PASS);
if (need_headerupdate(nssig, search.now)) {
updatesig = nssig;
}
if (nssig != NULL &&
need_headerupdate(nssig, search.now))
{
updatesig = nssig;
}
result = DNS_R_DELEGATION;
goto node_exit;
@@ -1954,18 +1948,15 @@ qpcache_find(dns_db_t *db, const dns_name_t *name, dns_dbversion_t *version,
if (type != dns_rdatatype_any || result == DNS_R_NCACHENXDOMAIN ||
result == DNS_R_NCACHENXRRSET)
{
bindrdataset(search.qpdb, node, found, search.now, nlocktype,
tlocktype, rdataset DNS__DB_FLARG_PASS);
bindrdatasets(search.qpdb, node, found, foundsig, search.now,
nlocktype, tlocktype, rdataset,
sigrdataset DNS__DB_FLARG_PASS);
if (need_headerupdate(found, search.now)) {
update = found;
}
if (!NEGATIVE(found) && foundsig != NULL) {
bindrdataset(search.qpdb, node, foundsig, search.now,
nlocktype, tlocktype,
sigrdataset DNS__DB_FLARG_PASS);
if (need_headerupdate(foundsig, search.now)) {
updatesig = foundsig;
}
if (foundsig != NULL && need_headerupdate(foundsig, search.now))
{
updatesig = foundsig;
}
}
@@ -2139,12 +2130,8 @@ qpcache_findzonecut(dns_db_t *db, const dns_name_t *name, unsigned int options,
*nodep = (dns_dbnode_t *)node;
}
bindrdataset(search.qpdb, node, found, search.now, nlocktype, tlocktype,
rdataset DNS__DB_FLARG_PASS);
if (foundsig != NULL) {
bindrdataset(search.qpdb, node, foundsig, search.now, nlocktype,
tlocktype, sigrdataset DNS__DB_FLARG_PASS);
}
bindrdatasets(search.qpdb, node, found, foundsig, search.now, nlocktype,
tlocktype, rdataset, sigrdataset DNS__DB_FLARG_PASS);
if (need_headerupdate(found, search.now) ||
(foundsig != NULL && need_headerupdate(foundsig, search.now)))
@@ -2246,13 +2233,9 @@ qpcache_findrdataset(dns_db_t *db, dns_dbnode_t *node, dns_dbversion_t *version,
}
}
if (found != NULL) {
bindrdataset(qpdb, qpnode, found, now, nlocktype,
isc_rwlocktype_none, rdataset DNS__DB_FLARG_PASS);
if (!NEGATIVE(found) && foundsig != NULL) {
bindrdataset(qpdb, qpnode, foundsig, now, nlocktype,
isc_rwlocktype_none,
sigrdataset DNS__DB_FLARG_PASS);
}
bindrdatasets(qpdb, qpnode, found, foundsig, now, nlocktype,
isc_rwlocktype_none, rdataset,
sigrdataset DNS__DB_FLARG_PASS);
}
NODE_UNLOCK(nlock, &nlocktype);