ddns: Do not ignore mismatched TTL.

src/knot/updates/apply.c

@@ -18,17 +18,11 @@
 
 #include "knot/updates/apply.h"
 
-#include "common/debug.h"
-#include "libknot/packet/pkt.h"
-#include "libknot/processing/process.h"
-#include "libknot/dname.h"
 #include "knot/zone/zone.h"
 #include "libknot/common.h"
 #include "knot/updates/changesets.h"
 #include "knot/zone/zonefile.h"
 #include "common/lists.h"
-#include "common/descriptor.h"
-#include "libknot/util/utils.h"
 #include "libknot/rrtype/soa.h"
 
 /* --------------------------- Update cleanup ------------------------------- */

src/knot/updates/changesets.c

@@ -33,12 +33,7 @@ static int add_rr_to_zone(zone_contents_t *z, const knot_rrset_t *rrset)
 	zone_node_t *n = NULL;
 	int ret = zone_contents_add_rr(z, rrset, &n);
 	UNUSED(n);
-	if (ret != KNOT_ETTL) {
-		return ret;
-	} else {
-		// Ignore TTL errors
-		return KNOT_EOK;
-	}
+	return ret;
 }
 
 void changeset_init(changeset_t *ch, const knot_dname_t *apex, mm_ctx_t *mm)

src/knot/updates/ddns.c

@@ -873,7 +873,7 @@ static uint16_t ret_to_rcode(int ret)
 {
 	if (ret == KNOT_EMALF) {
 		return KNOT_RCODE_FORMERR;
-	} else if (ret == KNOT_EDENIED) {
+	} else if (ret == KNOT_EDENIED || ret == KNOT_ETTL) {
 		return KNOT_RCODE_REFUSED;
 	} else {
 		return KNOT_RCODE_SERVFAIL;