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add a test with an inconsistent NS RRset

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add a zone with different NS RRsets in the parent and child,
and test resolver and forwarder behavior with and without +CD.
This commit is contained in:
Evan Hunt 2025-01-27 21:44:51 -08:00
parent 6aba56ae89
commit e4652a0444
9 changed files with 63 additions and 0 deletions
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2
bin/tests/system/dnssec/ns1/root.db.in
View file

@ -43,3 +43,5 @@ dnskey-rrsigs-stripped. NS ns2.dnskey-rrsigs-stripped.
ns2.dnskey-rrsigs-stripped. A 10.53.0.2
ds-rrsigs-stripped. NS ns2.ds-rrsigs-stripped.
ns2.ds-rrsigs-stripped. A 10.53.0.2
inconsistent. NS ns2.inconsistent.
ns2.inconsistent. A 10.53.0.2

1
bin/tests/system/dnssec/ns1/sign.sh
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@ -33,6 +33,7 @@ cp "../ns2/dsset-lazy-ksk." .
cp "../ns2/dsset-peer-ns-spoof." .
cp "../ns2/dsset-dnskey-rrsigs-stripped." .
cp "../ns2/dsset-ds-rrsigs-stripped." .
cp "../ns2/dsset-inconsistent." .
grep "$DEFAULT_ALGORITHM_NUMBER [12] " "../ns2/dsset-algroll." >"dsset-algroll."
cp "../ns6/dsset-optout-tld." .

24
bin/tests/system/dnssec/ns2/inconsistent.db.in Normal file
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@ -0,0 +1,24 @@
; 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 ns2.example. . (
2010042407 ; serial
20 ; refresh (20 seconds)
20 ; retry (20 seconds)
1814400 ; expire (3 weeks)
3600 ; minimum (1 hour)
)
NS ns2.example.
NS ns3.example.
A 10.53.0.1
ns2 A 10.53.0.2
ns3 A 10.53.0.3

5
bin/tests/system/dnssec/ns2/named.conf.in
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@ -207,6 +207,11 @@ zone "too-many-iterations" {
file "too-many-iterations.db.signed";
};
zone "inconsistent" {
type primary;
file "inconsistent.db.signed";
};
zone "lazy-ksk" {
type primary;
file "lazy-ksk.db";

11
bin/tests/system/dnssec/ns2/sign.sh
View file

@ -432,3 +432,14 @@ cat "$infile" "$ksk.key" "$zsk.key" >"$zonefile"
| awk '$4 == "SOA" { $7 = $7 + 1; print; next } { print }' >"$zonefile.next"
"$SIGNER" -g -o "$zone" -f "$zonefile.next" "$zonefile.next" >/dev/null 2>&1
cp "$zonefile.stripped" "$zonefile.signed"
#
# Inconsistent NS RRset between parent and child
#
zone=inconsistent
infile=inconsistent.db.in
zonefile=inconsistent.db
key1=$("$KEYGEN" -q -a "$DEFAULT_ALGORITHM" -b "$DEFAULT_BITS" -n zone -f KSK "$zone")
key2=$("$KEYGEN" -q -a "$DEFAULT_ALGORITHM" -b "$DEFAULT_BITS" -n zone "$zone")
cat "$infile" "$key1.key" "$key2.key" >"$zonefile"
"$SIGNER" -3 - -g -o "$zone" "$zonefile" >/dev/null 2>&1

2
bin/tests/system/dnssec/ns4/named3.conf.in
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@ -26,6 +26,8 @@ options {
bindkeys-file "managed.conf";
dnssec-accept-expired yes;
minimal-responses no;
servfail-ttl 0;
disable-algorithms "digest-alg-unsupported.example." { ECDSAP384SHA384; };
disable-ds-digests "digest-alg-unsupported.example." { "SHA384"; "SHA-384";};
disable-ds-digests "ds-unsupported.example." { "SHA256"; "SHA-256"; "SHA384"; "SHA-384"; };

1
bin/tests/system/dnssec/ns9/named.conf.in
View file

@ -25,6 +25,7 @@ options {
dnssec-validation yes;
forward only;
forwarders { 10.53.0.4; };
servfail-ttl 0;
};
key rndc_key {

16
bin/tests/system/dnssec/tests.sh
View file

@ -4666,5 +4666,21 @@ n=$((n + 1))
if [ "$ret" -ne 0 ]; then echo_i "failed"; fi
status=$((status + ret))
echo_i "checking validator behavior with mismatching NS ($n)"
ret=0
rndccmd 10.53.0.4 flush 2>&1 | sed 's/^/ns4 /' | cat_i
$DIG +tcp +cd -p "$PORT" -t ns inconsistent @10.53.0.4 >dig.out.ns4.test$n.1 || ret=1
grep "ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 2" dig.out.ns4.test$n.1 >/dev/null || ret=1
grep "flags:.*ad.*QUERY" dig.out.ns4.test$n.1 >/dev/null && ret=1
$DIG +tcp +cd +dnssec -p "$PORT" -t ns inconsistent @10.53.0.4 >dig.out.ns4.test$n.2 || ret=1
grep "ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 2" dig.out.ns4.test$n.2 >/dev/null || ret=1
grep "flags:.*ad.*QUERY" dig.out.ns4.test$n.2 >/dev/null && ret=1
$DIG +tcp +dnssec -p "$PORT" -t ns inconsistent @10.53.0.4 >dig.out.ns4.test$n.3 || ret=1
grep "ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1" dig.out.ns4.test$n.3 >/dev/null || ret=1
grep "flags:.*ad.*QUERY" dig.out.ns4.test$n.3 >/dev/null || ret=1
n=$((n + 1))
if [ "$ret" -ne 0 ]; then echo_i "failed"; fi
status=$((status + ret))
echo_i "exit status: $status"
[ $status -eq 0 ] || exit 1

1
bin/tests/system/dnssec/tests_sh_dnssec.py
View file

@ -70,6 +70,7 @@ pytestmark = pytest.mark.extra_artifacts(
"ns2/settime.out.updatecheck-kskonly.secure.zsk",
"ns2/single-nsec3.db",
"ns2/too-many-iterations.db",
"ns2/inconsistent.db",
"ns2/trusted.db",
"ns2/updatecheck-kskonly.secure.ksk.id",
"ns2/updatecheck-kskonly.secure.ksk.key",