Merging upstream version 1:9.16.48.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 20 insertions, 14 deletions

diff --git a/lib/ns/query.c b/lib/ns/query.c
index 4503b8d..1290c30 100644
--- a/lib/ns/query.c
+++ b/lib/ns/query.c
@@ -196,7 +196,7 @@ client_trace(ns_client_t *client, int level, const char *message) {
 #define DNS_GETDB_IGNOREACL  0x08U
 #define DNS_GETDB_STALEFIRST 0X0CU
 
-#define PENDINGOK(x) (((x)&DNS_DBFIND_PENDINGOK) != 0)
+#define PENDINGOK(x) (((x) & DNS_DBFIND_PENDINGOK) != 0)
 
 #define SFCACHE_CDFLAG 0x1
 
@@ -455,10 +455,10 @@ static void
 query_addnxrrsetnsec(query_ctx_t *qctx);
 
 static isc_result_t
-query_nxdomain(query_ctx_t *qctx, bool empty_wild);
+query_nxdomain(query_ctx_t *qctx, isc_result_t result);
 
 static isc_result_t
-query_redirect(query_ctx_t *qctx);
+query_redirect(query_ctx_t *qctx, isc_result_t result);
 
 static isc_result_t
 query_ncache(query_ctx_t *qctx, isc_result_t result);
@@ -6095,6 +6095,13 @@ query_lookup_stale(ns_client_t *client) {
 	query_ctx_t qctx;
 
 	qctx_init(client, NULL, client->query.qtype, &qctx);
+	if (DNS64(client)) {
+		qctx.qtype = qctx.type = dns_rdatatype_a;
+		qctx.dns64 = true;
+	}
+	if (DNS64EXCLUDE(client)) {
+		qctx.dns64_exclude = true;
+	}
 	dns_db_attach(client->view->cachedb, &qctx.db);
 	client->query.attributes &= ~NS_QUERYATTR_RECURSIONOK;
 	client->query.dboptions |= DNS_DBFIND_STALETIMEOUT;
@@ -7345,8 +7352,7 @@ query_usestale(query_ctx_t *qctx, isc_result_t result) {
  * result from the search.
  */
 static isc_result_t
-query_gotanswer(query_ctx_t *qctx, isc_result_t res) {
-	isc_result_t result = res;
+query_gotanswer(query_ctx_t *qctx, isc_result_t result) {
 	char errmsg[256];
 
 	CCTRACE(ISC_LOG_DEBUG(3), "query_gotanswer");
@@ -7416,16 +7422,16 @@ root_key_sentinel:
 		return (query_nodata(qctx, DNS_R_NXRRSET));
 
 	case DNS_R_EMPTYWILD:
-		return (query_nxdomain(qctx, true));
+		return (query_nxdomain(qctx, DNS_R_EMPTYWILD));
 
 	case DNS_R_NXDOMAIN:
-		return (query_nxdomain(qctx, false));
+		return (query_nxdomain(qctx, DNS_R_NXDOMAIN));
 
 	case DNS_R_COVERINGNSEC:
 		return (query_coveringnsec(qctx));
 
 	case DNS_R_NCACHENXDOMAIN:
-		result = query_redirect(qctx);
+		result = query_redirect(qctx, result);
 		if (result != ISC_R_COMPLETE) {
 			return (result);
 		}
@@ -9243,10 +9249,10 @@ query_addnxrrsetnsec(query_ctx_t *qctx) {
  * Handle NXDOMAIN and empty wildcard responses.
  */
 static isc_result_t
-query_nxdomain(query_ctx_t *qctx, bool empty_wild) {
+query_nxdomain(query_ctx_t *qctx, isc_result_t result) {
 	dns_section_t section;
 	uint32_t ttl;
-	isc_result_t result;
+	bool empty_wild = (result == DNS_R_EMPTYWILD);
 
 	CCTRACE(ISC_LOG_DEBUG(3), "query_nxdomain");
 
@@ -9255,7 +9261,7 @@ query_nxdomain(query_ctx_t *qctx, bool empty_wild) {
 	INSIST(qctx->is_zone || REDIRECT(qctx->client));
 
 	if (!empty_wild) {
-		result = query_redirect(qctx);
+		result = query_redirect(qctx, result);
 		if (result != ISC_R_COMPLETE) {
 			return (result);
 		}
@@ -9343,7 +9349,7 @@ cleanup:
  * redirecting, so query processing should continue past it.
  */
 static isc_result_t
-query_redirect(query_ctx_t *qctx) {
+query_redirect(query_ctx_t *qctx, isc_result_t saved_result) {
 	isc_result_t result;
 
 	CCTRACE(ISC_LOG_DEBUG(3), "query_redirect");
@@ -9384,7 +9390,7 @@ query_redirect(query_ctx_t *qctx) {
 		SAVE(qctx->client->query.redirect.rdataset, qctx->rdataset);
 		SAVE(qctx->client->query.redirect.sigrdataset,
 		     qctx->sigrdataset);
-		qctx->client->query.redirect.result = DNS_R_NCACHENXDOMAIN;
+		qctx->client->query.redirect.result = saved_result;
 		dns_name_copynf(qctx->fname,
 				qctx->client->query.redirect.fname);
 		qctx->client->query.redirect.authoritative =
@@ -10005,7 +10011,7 @@ query_coveringnsec(query_ctx_t *qctx) {
 	 * We now have the proof that we have an NXDOMAIN.  Apply
 	 * NXDOMAIN redirection if configured.
 	 */
-	result = query_redirect(qctx);
+	result = query_redirect(qctx, DNS_R_COVERINGNSEC);
 	if (result != ISC_R_COMPLETE) {
 		redirected = true;
 		goto cleanup;