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Check that pending negative cache entries for DS can be used successfully

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Prime the cache with a negative cache DS entry then make a query for
name beneath that entry. This will cause the DS entry to be retieved
as part of the validation process.  Each RRset in the ncache entry
will be validated and the trust level for each will be updated.
This commit is contained in:
Mark Andrews
2022-04-14 10:57:11 +10:00
parent 76bb33fbd5
commit d2d9910da2
4 changed files with 55 additions and 0 deletions
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4
bin/tests/system/dnssec/ns2/example.db.in
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@@ -55,6 +55,10 @@ ns3.secure A 10.53.0.3
insecure NS ns.insecure
ns.insecure A 10.53.0.3
; A second insecure subdomain
insecure2 NS ns.insecure2
ns.insecure2 A 10.53.0.3
; A secure subdomain we're going to inject bogus data into
bogus NS ns.bogus
ns.bogus A 10.53.0.3

27
bin/tests/system/dnssec/ns3/insecure2.example.db Normal file
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@@ -0,0 +1,27 @@
; 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 ; 5 minutes
@ IN SOA mname1. . (
2000042407 ; serial
20 ; refresh (20 seconds)
20 ; retry (20 seconds)
1814400 ; expire (3 weeks)
3600 ; minimum (1 hour)
)
NS ns
ns A 10.53.0.3
a A 10.0.0.1
b A 10.0.0.2
d A 10.0.0.4
x DNSKEY 258 3 5 Cg==
z A 10.0.0.26

6
bin/tests/system/dnssec/ns3/named.conf.in
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@@ -78,6 +78,12 @@ zone "insecure.example" {
allow-update { any; };
};
zone "insecure2.example" {
type primary;
file "insecure2.example.db";
allow-update { any; };
};
zone "insecure.nsec3.example" {
type primary;
file "insecure.nsec3.example.db";

18
bin/tests/system/dnssec/tests.sh
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@@ -4434,5 +4434,23 @@ n=$((n+1))
test "$ret" -eq 0 || echo_i "failed"
status=$((status+ret))
# Check that a query against a validating resolver succeeds when there is
# a negative cache entry with trust level "pending" for the DS. Prime
# with a +cd DS query to produce the negative cache entry, then send a
# query that uses that entry as part of the validation process. [GL #3279]
echo_i "check that pending negative DS cache entry validates ($n)"
ret=0
dig_with_opts @10.53.0.4 +cd insecure2.example. ds > dig.out.prime.ns4.test$n || ret=1
grep "flags: qr rd ra cd;" dig.out.prime.ns4.test$n >/dev/null || ret=1
grep "status: NOERROR" dig.out.prime.ns4.test$n >/dev/null || ret=1
grep "ANSWER: 0, AUTHORITY: 4, " dig.out.prime.ns4.test$n > /dev/null || ret=1
dig_with_opts @10.53.0.4 a.insecure2.example. a > dig.out.ns4.test$n || ret=1
grep "ANSWER: 1, AUTHORITY: 1, " dig.out.ns4.test$n > /dev/null || ret=1
grep "flags: qr rd ra;" dig.out.ns4.test$n >/dev/null || ret=1
grep "status: NOERROR" dig.out.ns4.test$n >/dev/null || ret=1
n=$((n+1))
if [ "$ret" -ne 0 ]; then echo_i "failed"; fi
status=$((status+ret))
echo_i "exit status: $status"
[ $status -eq 0 ] || exit 1