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Add a test for not caching large number of RRsets

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Send a recursive query for a large number of RRsets, which should
fail when using the default max-types-per-name setting of 100, but
succeed when the cap is disabled.
This commit is contained in:
Ondřej Surý 2024-05-28 15:23:24 +02:00 committed by Nicki Křížek
parent 52b3d86ef0
commit 86aa4674ab
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GPG key ID: 01623B9B652A20A7
5 changed files with 335 additions and 0 deletions
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256
bin/tests/system/reclimit/ns1/big.db
View file

@ -2513,3 +2513,259 @@ biganswer.big. 60 IN A 10.10.50.47
biganswer.big. 60 IN A 10.10.50.48
biganswer.big. 60 IN A 10.10.50.49
biganswer.big. 60 IN A 10.10.50.50
manytypes.big. IN TYPE65280 \# 0
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1
bin/tests/system/reclimit/ns1/named.conf.in
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@ -23,6 +23,7 @@ options {
recursion no;
dnssec-validation no;
max-records-per-type 0;
max-types-per-name 0;
};
zone "." { type primary; file "root.db"; };

1
bin/tests/system/reclimit/ns3/named5.conf.in
View file

@ -26,6 +26,7 @@ options {
recursion yes;
dnssec-validation yes;
max-records-per-type 0;
max-types-per-name 10;
};
trust-anchors { };

43
bin/tests/system/reclimit/ns3/named6.conf.in Normal file
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@ -0,0 +1,43 @@
/*
* 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.
*/
options {
directory ".";
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; };
servfail-ttl 0;
qname-minimization disabled;
max-recursion-depth 12;
recursion yes;
dnssec-validation yes;
max-records-per-type 0;
max-types-per-name 0;
};
trust-anchors { };
key rndc_key {
secret "1234abcd8765";
algorithm @DEFAULT_HMAC@;
};
controls {
inet 10.53.0.3 port @CONTROLPORT@ allow { any; } keys { rndc_key; };
};
zone "." { type hint; file "hints.db"; };

34
bin/tests/system/reclimit/tests.sh
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@ -233,5 +233,39 @@ grep 'status: NOERROR' dig.out.2.test$n >/dev/null || ret=1
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$((status + ret))
check_manytypes() (
i=$1
type=$2
expected=$3
$DIG $DIGOPTS @10.53.0.3 IN $type manytypes.big >dig.out.$i.$type.test$n || exit 1
grep 'status: '"${expected}"'' dig.out.$i.$type.test$n >/dev/null || exit 1
exit 0
)
n=$((n + 1))
echo_i "checking name that exceeds max-types-per-name ($n)"
ret=0
# Limited to 10 types - these should be fine
for ntype in $(seq 65280 65289); do
check_manytypes 1 "TYPE${ntype}" NOERROR || ret=1
done
# Everything on top of that should SERVFAIL
for ntype in $(seq 65290 65534); do
check_manytypes 1 "TYPE${ntype}" SERVFAIL || ret=1
done
# Lift the limit
ns3_reset ns3/named6.conf.in
for ntype in $(seq 65280 65534); do
check_manytypes 2 "TYPE${ntype}" NOERROR || ret=1
done
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$((status + ret))
echo_i "exit status: $status"
[ $status -eq 0 ] || exit 1