From: Colin Vidal <colin@isc.org>
Date: Thu, 4 Dec 2025 15:42:11 +0000 (+0100)
Subject: support EDE 13 (Cached Error)
X-Git-Tag: v9.21.17~59^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=430c0ce76a02b2ca74040fd9f8bf8955298d529f;p=thirdparty%2Fbind9.git

support EDE 13 (Cached Error)

Extended DNS Error 13 (Cached Error) is now returned when the server
answers a message from a cached SERVFAIL.

See RFC 8914 section 4.14.
---

diff --git a/lib/ns/query.c b/lib/ns/query.c
index 3f7f0935aa7..929b2bbbcde 100644
--- a/lib/ns/query.c
+++ b/lib/ns/query.c
@@ -6832,6 +6832,7 @@ ns__query_sfcache(query_ctx_t *qctx) {
 									 "0");
 		}
 
+		dns_ede_add(&qctx->client->edectx, DNS_EDE_CACHEDERROR, NULL);
 		qctx->client->inner.attributes |= NS_CLIENTATTR_NOSETFC;
 		QUERY_ERROR(qctx, DNS_R_SERVFAIL);
 		return ns_query_done(qctx);