9 files changed, 397 insertions, 0 deletions
diff --git a/bin/tests/system/serve-stale/ns3/named1.conf.in b/bin/tests/system/serve-stale/ns3/named1.conf.in
new file mode 100644
index 0000000..09ad864
--- /dev/null
+++ b/bin/tests/system/serve-stale/ns3/named1.conf.in
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0.  If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+key rndc_key {
+	secret "1234abcd8765";
+	algorithm hmac-sha256;
+};
+
+controls {
+	inet 10.53.0.3 port @CONTROLPORT@ allow { any; } keys { rndc_key; };
+};
+
+options {
+	query-source address 10.53.0.3;
+	notify-source 10.53.0.3;
+	transfer-source 10.53.0.3;
+	port @PORT@;
+	pid-file "named.pid";
+	listen-on { 10.53.0.3; };
+	listen-on-v6 { none; };
+	recursion yes;
+	dump-file "named_dump3.db";
+};
+
+zone "." {
+	type secondary;
+	primaries { 10.53.0.1; };
+	file "root.bk";
+};
diff --git a/bin/tests/system/serve-stale/ns3/named2.conf.in b/bin/tests/system/serve-stale/ns3/named2.conf.in
new file mode 100644
index 0000000..a2b1d5a
--- /dev/null
+++ b/bin/tests/system/serve-stale/ns3/named2.conf.in
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0.  If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+/*
+ * Test default stale-answer-client-timeout value
+ */
+
+key rndc_key {
+	secret "1234abcd8765";
+	algorithm hmac-sha256;
+};
+
+controls {
+	inet 10.53.0.3 port @CONTROLPORT@ allow { any; } keys { rndc_key; };
+};
+
+options {
+	query-source address 10.53.0.3;
+	notify-source 10.53.0.3;
+	transfer-source 10.53.0.3;
+	port @PORT@;
+	pid-file "named.pid";
+	listen-on { 10.53.0.3; };
+	listen-on-v6 { none; };
+	dnssec-validation no;
+	recursion yes;
+	stale-answer-enable yes;
+	stale-cache-enable yes;
+	stale-answer-ttl 3;
+	stale-refresh-time 0;
+	stale-answer-client-timeout 1800;
+	recursive-clients 10; # CVE-2022-3924
+	max-stale-ttl 3600;
+	resolver-query-timeout 10;
+	qname-minimization disabled;
+};
+
+zone "." {
+	type hint;
+	file "root.db";
+};
diff --git a/bin/tests/system/serve-stale/ns3/named3.conf.in b/bin/tests/system/serve-stale/ns3/named3.conf.in
new file mode 100644
index 0000000..2d2a250
--- /dev/null
+++ b/bin/tests/system/serve-stale/ns3/named3.conf.in
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0.  If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+/*
+ * Test disable of stale-answer-client-timeout.
+ */
+
+key rndc_key {
+	secret "1234abcd8765";
+	algorithm hmac-sha256;
+};
+
+controls {
+	inet 10.53.0.3 port @CONTROLPORT@ allow { any; } keys { rndc_key; };
+};
+
+options {
+	query-source address 10.53.0.3;
+	notify-source 10.53.0.3;
+	transfer-source 10.53.0.3;
+	port @PORT@;
+	pid-file "named.pid";
+	listen-on { 10.53.0.3; };
+	listen-on-v6 { none; };
+	dnssec-validation no;
+	recursion yes;
+	stale-answer-enable yes;
+	stale-cache-enable yes;
+	stale-answer-ttl 3;
+	stale-refresh-time 0;
+	max-stale-ttl 3600;
+	resolver-query-timeout 10;
+};
+
+zone "." {
+	type hint;
+	file "root.db";
+};
diff --git a/bin/tests/system/serve-stale/ns3/named4.conf.in b/bin/tests/system/serve-stale/ns3/named4.conf.in
new file mode 100644
index 0000000..d04b3aa
--- /dev/null
+++ b/bin/tests/system/serve-stale/ns3/named4.conf.in
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0.  If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+/*
+ * Test stale-answer-client-timeout 0.
+ */
+
+key rndc_key {
+	secret "1234abcd8765";
+	algorithm hmac-sha256;
+};
+
+controls {
+	inet 10.53.0.3 port @CONTROLPORT@ allow { any; } keys { rndc_key; };
+};
+
+options {
+	query-source address 10.53.0.3;
+	notify-source 10.53.0.3;
+	transfer-source 10.53.0.3;
+	port @PORT@;
+	pid-file "named.pid";
+	listen-on { 10.53.0.3; };
+	listen-on-v6 { none; };
+	dnssec-validation no;
+	recursion yes;
+	stale-answer-enable yes;
+	stale-cache-enable yes;
+	stale-answer-ttl 3;
+	stale-answer-client-timeout 0;
+	stale-refresh-time 0;
+	resolver-query-timeout 10;
+	max-stale-ttl 3600;
+	recursive-clients 10;
+};
+
+zone "." {
+	type hint;
+	file "root.db";
+};
diff --git a/bin/tests/system/serve-stale/ns3/named5.conf.in b/bin/tests/system/serve-stale/ns3/named5.conf.in
new file mode 100644
index 0000000..35399b8
--- /dev/null
+++ b/bin/tests/system/serve-stale/ns3/named5.conf.in
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0.  If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+/*
+ * Test stale-answer-client-timeout 0.
+ */
+
+key rndc_key {
+	secret "1234abcd8765";
+	algorithm hmac-sha256;
+};
+
+controls {
+	inet 10.53.0.3 port @CONTROLPORT@ allow { any; } keys { rndc_key; };
+};
+
+options {
+	query-source address 10.53.0.3;
+	notify-source 10.53.0.3;
+	transfer-source 10.53.0.3;
+	port @PORT@;
+	pid-file "named.pid";
+	listen-on { 10.53.0.3; };
+	listen-on-v6 { none; };
+	dnssec-validation no;
+	recursion yes;
+	stale-answer-enable yes;
+	stale-cache-enable yes;
+	stale-answer-ttl 3;
+	stale-answer-client-timeout 0;
+	stale-refresh-time 4;
+	resolver-query-timeout 10;
+	max-stale-ttl 3600;
+};
+
+zone "." {
+	type hint;
+	file "root.db";
+};
diff --git a/bin/tests/system/serve-stale/ns3/named6.conf.in b/bin/tests/system/serve-stale/ns3/named6.conf.in
new file mode 100644
index 0000000..6e468d5
--- /dev/null
+++ b/bin/tests/system/serve-stale/ns3/named6.conf.in
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0.  If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+key rndc_key {
+	secret "1234abcd8765";
+	algorithm hmac-sha256;
+};
+
+controls {
+	inet 10.53.0.3 port @CONTROLPORT@ allow { any; } keys { rndc_key; };
+};
+
+options {
+	query-source address 10.53.0.3;
+	notify-source 10.53.0.3;
+	transfer-source 10.53.0.3;
+	port @PORT@;
+	pid-file "named.pid";
+	listen-on { 10.53.0.3; };
+	listen-on-v6 { none; };
+	dnssec-validation no;
+	recursion yes;
+	stale-answer-enable no;
+	stale-cache-enable yes;
+	stale-answer-ttl 3;
+	stale-refresh-time 4;
+	resolver-query-timeout 10;
+	fetches-per-zone 1 fail;
+	fetches-per-server 1 fail;
+	max-stale-ttl 3600;
+};
+
+zone "." {
+	type hint;
+	file "root.db";
+};
diff --git a/bin/tests/system/serve-stale/ns3/named7.conf.in b/bin/tests/system/serve-stale/ns3/named7.conf.in
new file mode 100644
index 0000000..3e05341
--- /dev/null
+++ b/bin/tests/system/serve-stale/ns3/named7.conf.in
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0.  If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+/*
+ * Test serve-stale interaction with fetch-limits (dual-mode).
+ */
+
+key rndc_key {
+	secret "1234abcd8765";
+	algorithm hmac-sha256;
+};
+
+controls {
+	inet 10.53.0.3 port @CONTROLPORT@ allow { any; } keys { rndc_key; };
+};
+
+options {
+	query-source address 10.53.0.3;
+	notify-source 10.53.0.3;
+	transfer-source 10.53.0.3;
+	port @PORT@;
+	pid-file "named.pid";
+	listen-on { 10.53.0.3; };
+	listen-on-v6 { none; };
+	dnssec-validation no;
+	recursion yes;
+	/*
+	 * stale-answer-enable is not strictly required because serving
+	 * stale answers is enabled in the test via rndc.
+	 */
+	stale-answer-enable yes;
+	stale-cache-enable yes;
+	stale-answer-ttl 3;
+	stale-refresh-time 4;
+	resolver-query-timeout 10;
+	fetches-per-zone 1 fail;
+	fetches-per-server 1 fail;
+	max-stale-ttl 3600;
+};
+
+zone "." {
+	type secondary;
+	primaries { 10.53.0.1; };
+	file "root.bk";
+};
diff --git a/bin/tests/system/serve-stale/ns3/named8.conf.in b/bin/tests/system/serve-stale/ns3/named8.conf.in
new file mode 100644
index 0000000..a292b5a
--- /dev/null
+++ b/bin/tests/system/serve-stale/ns3/named8.conf.in
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0.  If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+key rndc_key {
+	secret "1234abcd8765";
+	algorithm hmac-sha256;
+};
+
+controls {
+	inet 10.53.0.3 port @CONTROLPORT@ allow { any; } keys { rndc_key; };
+};
+
+options {
+	query-source address 10.53.0.3;
+	notify-source 10.53.0.3;
+	transfer-source 10.53.0.3;
+	port @PORT@;
+	pid-file "named.pid";
+	listen-on { 10.53.0.3; };
+	listen-on-v6 { none; };
+	recursion yes;
+	stale-answer-enable yes;
+	stale-cache-enable yes;
+	stale-answer-client-timeout 1800;
+	prefetch 2 8;
+	dns64 2001:aaaa::/96 {
+		clients { any; };
+		mapped { any; };
+	};
+};
+
+zone "." {
+	type secondary;
+	primaries { 10.53.0.1; };
+	file "root.bk";
+};
diff --git a/bin/tests/system/serve-stale/ns3/root.db b/bin/tests/system/serve-stale/ns3/root.db
new file mode 100644
index 0000000..bbf039c
--- /dev/null
+++ b/bin/tests/system/serve-stale/ns3/root.db
@@ -0,0 +1,13 @@
+; Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+;
+; SPDX-License-Identifier: MPL-2.0
+;
+; This Source Code Form is subject to the terms of the Mozilla Public
+; License, v. 2.0.  If a copy of the MPL was not distributed with this
+; file, you can obtain one at https://mozilla.org/MPL/2.0/.
+;
+; See the COPYRIGHT file distributed with this work for additional
+; information regarding copyright ownership.
+
+.           300 NS  ns.nil.
+ns.nil.     300 A   10.53.0.1