Add a test with an active truncated key

Check that an invalid truncated key is handled correctly.

bin/tests/system/dnssec_malformed_dnskey/ns2/named.conf.j2

@@ -34,9 +34,14 @@ zone example. {
 	file "example.db.signed.malformed";
 };
 
-zone truncated.selfsigned. {
+zone truncated-active.selfsigned. {
 	type primary;
-	file "truncated.selfsigned.db.signed";
+	file "truncated-active.selfsigned.db.signed";
+};
+
+zone truncated-revoked.selfsigned. {
+	type primary;
+	file "truncated-revoked.selfsigned.db.signed";
 };
 
 include "trusted.conf";

bin/tests/system/dnssec_malformed_dnskey/ns2/truncated-active.selfsigned.db.signed

@@ -0,0 +1,34 @@
+; 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.
+
+$TTL 300
+
+@		IN SOA	mname1. . (
+				1	; serial
+				600	; refresh
+				600	; retry
+				1200	; expire
+				600	; minimum
+				)
+
+@		NS	@
+@		A	10.53.0.2
+
+; The following DNSKEY is too short for the algorithm, but will be
+; accepted by the DNSKEY parser code, which only checks for minimum length.
+@		DNSKEY	257 3 14 fYA=
+
+@		RRSIG	SOA 14 2 86400 20950926153053 20251013153053 33167 @ xxxx5f7U0DiPvKFxpB83mTyqkAO0TfM0 xe4ZMYoJUQEPYdd0GTNkFzI6crsbU0lQ t/V1YOxAt5B+T1ch9n5dhYwt7ZTqluI2 mr6myKMesdPl1zp1hEgkmFpCG3NOXl2Z
+@		RRSIG	NS 14 2 86400 20950926153053 20251013153053 33167 @ xxxxLBPc05g7v/K5UfGuXsHH8xd29eQb 5qWe+Ei4Qn0GlmH0x/VIJiJMZXuxD5S+ VhP7DiX7uKIxi0QS2DOK1aOMXq/2WiUV 2VBmYAoSUilMlJY84I2XbzqD5iz5y+yp
+@		RRSIG	A 14 2 86400 20950926153053 20251013153053 33167 @ xxxx6UguMh8jgdVox2UVURjEsAP0D8o2 mFofnFOd6eYf+49QlWD+GX6x60X/hPVi f2XFsajouCvT/ZSmoXKWad3RC1DLHF/H TdOGMKlT4DfvbeJV+N5N0bgu2Wv3QRdM
+@		RRSIG	DNSKEY 14 2 86400 20950926153053 20251013153053 33167 @ xxxxqayRNsL32Km0c9AjwN0RNktt4iGb 97Dwi0uiHPcM4eVNZR2w68XMUh43+nR1 DA1QE2RqIqt7soEIwi1z4kAczf7W1wrP 7dcbEwjxS9D1CefuNRG1xnj9wGsqKecI
+@		NSEC	a A NS SOA RRSIG NSEC DNSKEY
+@		RRSIG	NSEC 14 2 0 20950926153053 20251013153053 33167 @ xxxx4Y6vqeOJHWEeg0T0OY4z7BdDrTkn BY9Yra8zSjFEGZvIX3irPd81+u5xlA0T 9waJO2Y9W42IMrOeKdQt++QXVHsLhOYn 4NAF6RotHSb4cqv1DXI1PSchMaJ5FWwD

bin/tests/system/dnssec_malformed_dnskey/ns2/trusted.conf.j2

@@ -14,14 +14,17 @@
 trust-anchors {
 	example. static-key 257 3 14 "@ksk_public_key@";
 
+	truncated-active.selfsigned. static-key 257 3 14 "fYA=";
+
 	/*
 	 *  The key tag in the trust anchor must match that of the revoked
-	 *  truncated self-signed key in the truncated.selfsigned. zone.
+	 *  truncated self-signed key in the truncated-revoked.selfsigned.
+         *  zone.
 	 *
 	 *  The DNSKEY contents are intentionally different here, because the
 	 *  key doesn't have the revoked bit here and that flag is part of the
 	 *  key tag. The following decodes to key tag 33167, which is the same
 	 *  as the revoked truncated key in the zone file.
 	 */
-	truncated.selfsigned. static-key 257 3 14 "fYA=";
+	truncated-revoked.selfsigned. static-key 257 3 14 "fYA=";
 };

bin/tests/system/dnssec_malformed_dnskey/ns3/named.conf.j2

@@ -31,7 +31,12 @@ zone "example." {
 	server-addresses { 10.53.0.2; };
 };
 
-zone "truncated.selfsigned." {
+zone "truncated-active.selfsigned." {
+	type static-stub;
+	server-addresses { 10.53.0.2; };
+};
+
+zone "truncated-revoked.selfsigned." {
 	type static-stub;
 	server-addresses { 10.53.0.2; };
 };

bin/tests/system/dnssec_malformed_dnskey/tests_malformed_dnskey.py

@@ -189,7 +189,13 @@ def test_multiple_rrsigs(ns3):
     isctest.check.servfail(res)
 
 
-def test_truncated_dnskey():
+def test_truncated_active_dnskey():
-    msg = isctest.query.create("a.truncated.selfsigned.", "A")
+    msg = isctest.query.create("a.truncated-active.selfsigned.", "A")
+    res = isctest.query.tcp(msg, "10.53.0.3")
+    isctest.check.servfail(res)
+
+
+def test_truncated_revoked_dnskey():
+    msg = isctest.query.create("a.truncated-revoked.selfsigned.", "A")
     res = isctest.query.tcp(msg, "10.53.0.3")
     isctest.check.servfail(res)