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Process db callbacks in zone_loaddone() after zone_postload()

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The zone_postload() function can fail and unregister the callbacks.

Call dns_db_endload() only after calling zone_postload() to make
sure that the registered update-notify callbacks are not called
when the zone loading has failed during zone_postload().

Also, don't ignore the return value of zone_postload().
This commit is contained in:
Aram Sargsyan 2023-01-26 19:08:19 +00:00 committed by Arаm Sаrgsyаn
parent a73b67456e
commit ed268b46f1
1 changed files with 12 additions and 9 deletions
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21
lib/dns/zone.c
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@ -17225,13 +17225,6 @@ zone_loaddone(void *arg, isc_result_t result) {
dns_zone_catz_disable_db(zone, load->db);
}
tresult = dns_db_endload(load->db, &load->callbacks);
if (tresult != ISC_R_SUCCESS &&
(result == ISC_R_SUCCESS || result == DNS_R_SEENINCLUDE))
{
result = tresult;
}
/*
* Lock hierarchy: zmgr, zone, raw.
*/
@ -17250,9 +17243,13 @@ again:
goto again;
}
}
(void)zone_postload(zone, load->db, load->loadtime, result);
tresult = zone_postload(zone, load->db, load->loadtime, result);
if (tresult != ISC_R_SUCCESS &&
(result == ISC_R_SUCCESS || result == DNS_R_SEENINCLUDE))
{
result = tresult;
}
DNS_ZONE_CLRFLAG(zone, DNS_ZONEFLG_LOADING);
zone_idetach(&load->callbacks.zone);
/*
* Leave the zone frozen if the reload fails.
*/
@ -17269,6 +17266,12 @@ again:
}
UNLOCK_ZONE(zone);
(void)dns_db_endload(load->db, &load->callbacks);
LOCK_ZONE(zone);
zone_idetach(&load->callbacks.zone);
UNLOCK_ZONE(zone);
dns_db_detach(&load->db);
if (zone->loadctx != NULL) {
dns_loadctx_detach(&zone->loadctx);