diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 07:24:22 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 07:24:22 +0000 |
commit | 45d6379135504814ab723b57f0eb8be23393a51d (patch) | |
tree | d4f2ec4acca824a8446387a758b0ce4238a4dffa /bin/tests/system/fetchlimit | |
parent | Initial commit. (diff) | |
download | bind9-upstream.tar.xz bind9-upstream.zip |
Adding upstream version 1:9.16.44.upstream/1%9.16.44upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | bin/tests/system/fetchlimit/ans4/ans.pl | 86 | ||||
-rw-r--r-- | bin/tests/system/fetchlimit/clean.sh | 19 | ||||
-rw-r--r-- | bin/tests/system/fetchlimit/ns1/named.conf.in | 35 | ||||
-rw-r--r-- | bin/tests/system/fetchlimit/ns1/root.db | 24 | ||||
-rw-r--r-- | bin/tests/system/fetchlimit/ns2/example.db | 37 | ||||
-rw-r--r-- | bin/tests/system/fetchlimit/ns2/named.conf.in | 41 | ||||
-rw-r--r-- | bin/tests/system/fetchlimit/ns3/named.args | 1 | ||||
-rw-r--r-- | bin/tests/system/fetchlimit/ns3/named1.conf.in | 47 | ||||
-rw-r--r-- | bin/tests/system/fetchlimit/ns3/named2.conf.in | 45 | ||||
-rw-r--r-- | bin/tests/system/fetchlimit/ns3/named3.conf.in | 45 | ||||
-rw-r--r-- | bin/tests/system/fetchlimit/ns3/root.hint | 14 | ||||
-rw-r--r-- | bin/tests/system/fetchlimit/prereq.sh | 23 | ||||
-rw-r--r-- | bin/tests/system/fetchlimit/setup.sh | 19 | ||||
-rw-r--r-- | bin/tests/system/fetchlimit/tests.sh | 200 |
14 files changed, 636 insertions, 0 deletions
diff --git a/bin/tests/system/fetchlimit/ans4/ans.pl b/bin/tests/system/fetchlimit/ans4/ans.pl new file mode 100644 index 0000000..5a265c4 --- /dev/null +++ b/bin/tests/system/fetchlimit/ans4/ans.pl @@ -0,0 +1,86 @@ +#!/usr/bin/perl -w + +# 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. + +# +# Don't respond if the "norespond" file exists; otherwise respond to +# any A or AAAA query. +# + +use IO::File; +use IO::Socket; +use Net::DNS; +use Net::DNS::Packet; + +my $localport = int($ENV{'PORT'}); +if (!$localport) { $localport = 5300; } + +my $sock = IO::Socket::INET->new(LocalAddr => "10.53.0.4", + LocalPort => $localport, Proto => "udp") or die "$!"; + +my $pidf = new IO::File "ans.pid", "w" or die "cannot open pid file: $!"; +print $pidf "$$\n" or die "cannot write pid file: $!"; +$pidf->close or die "cannot close pid file: $!"; +sub rmpid { unlink "ans.pid"; exit 1; }; + +$SIG{INT} = \&rmpid; +$SIG{TERM} = \&rmpid; + +for (;;) { + $sock->recv($buf, 512); + + print "**** request from " , $sock->peerhost, " port ", $sock->peerport, "\n"; + + my $packet; + + if ($Net::DNS::VERSION > 0.68) { + $packet = new Net::DNS::Packet(\$buf, 0); + $@ and die $@; + } else { + my $err; + ($packet, $err) = new Net::DNS::Packet(\$buf, 0); + $err and die $err; + } + + print "REQUEST:\n"; + $packet->print; + + $packet->header->qr(1); + + my @questions = $packet->question; + my $qname = $questions[0]->qname; + my $qtype = $questions[0]->qtype; + + my $donotrespond = 0; + + if (-e 'norespond') { + $donotrespond = 1; + } else { + $packet->header->aa(1); + if ($qtype eq "A") { + $packet->push("answer", + new Net::DNS::RR($qname . + " 300 A 192.0.2.1")); + } elsif ($qtype eq "AAAA") { + $packet->push("answer", + new Net::DNS::RR($qname . + " 300 AAAA 2001:db8:beef::1")); + } + } + + if ($donotrespond == 0) { + $sock->send($packet->data); + print "RESPONSE:\n"; + $packet->print; + print "\n"; + } +} diff --git a/bin/tests/system/fetchlimit/clean.sh b/bin/tests/system/fetchlimit/clean.sh new file mode 100644 index 0000000..f0158b1 --- /dev/null +++ b/bin/tests/system/fetchlimit/clean.sh @@ -0,0 +1,19 @@ +#!/bin/sh + +# 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. + +rm -f */named.conf */named.memstats */ans.run */named.recursing */named.run +rm -f dig.out* +rm -f ans4/norespond +rm -f ns3/named.stats ns3/named_dump.db +rm -f burst.input.* +rm -f ns*/managed-keys.bind* diff --git a/bin/tests/system/fetchlimit/ns1/named.conf.in b/bin/tests/system/fetchlimit/ns1/named.conf.in new file mode 100644 index 0000000..9725d01 --- /dev/null +++ b/bin/tests/system/fetchlimit/ns1/named.conf.in @@ -0,0 +1,35 @@ +/* + * 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 { + query-source address 10.53.0.1; + notify-source 10.53.0.1; + transfer-source 10.53.0.1; + port @PORT@; + pid-file "named.pid"; + listen-on { 10.53.0.1; }; + listen-on-v6 { none; }; + recursion no; + dnssec-validation no; + notify yes; +}; + +zone "." { + type primary; + file "root.db"; +}; + +zone "example.info." { + type primary; + file "example-info.db"; +}; diff --git a/bin/tests/system/fetchlimit/ns1/root.db b/bin/tests/system/fetchlimit/ns1/root.db new file mode 100644 index 0000000..17780d1 --- /dev/null +++ b/bin/tests/system/fetchlimit/ns1/root.db @@ -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 +. IN SOA gson.nominum.com. a.root.servers.nil. ( + 2000042100 ; serial + 600 ; refresh + 600 ; retry + 1200 ; expire + 600 ; minimum + ) +. NS a.root-servers.nil. +a.root-servers.nil. A 10.53.0.1 + +example. NS ns2.example. +ns2.example. A 10.53.0.2 diff --git a/bin/tests/system/fetchlimit/ns2/example.db b/bin/tests/system/fetchlimit/ns2/example.db new file mode 100644 index 0000000..5bf9999 --- /dev/null +++ b/bin/tests/system/fetchlimit/ns2/example.db @@ -0,0 +1,37 @@ +; 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. + +$ORIGIN . +$TTL 300 ; 5 minutes +example IN SOA mname1. . ( + 1 ; serial + 20 ; refresh (20 seconds) + 20 ; retry (20 seconds) + 1814400 ; expire (3 weeks) + 3600 ; minimum (1 hour) + ) +example NS ns2.example. +ns2.example. A 10.53.0.2 + +a.example. A 10.0.0.1 + MX 10 mail.example. + +mail.example. A 10.0.0.2 + +lamesub.example. NS ns4.example. +ns4.example. A 10.53.0.4 + +0.example. A 10.53.1.0 +1.example. A 10.53.1.1 +2.example. A 10.53.1.2 +3.example. A 10.53.1.3 +4.example. A 10.53.1.4 +5.example. A 10.53.1.5 diff --git a/bin/tests/system/fetchlimit/ns2/named.conf.in b/bin/tests/system/fetchlimit/ns2/named.conf.in new file mode 100644 index 0000000..108877e --- /dev/null +++ b/bin/tests/system/fetchlimit/ns2/named.conf.in @@ -0,0 +1,41 @@ +/* + * 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 { + query-source address 10.53.0.2; + notify-source 10.53.0.2; + transfer-source 10.53.0.2; + port @PORT@; + pid-file "named.pid"; + listen-on { 10.53.0.2; }; + listen-on-v6 { none; }; + recursion no; + dnssec-validation no; + notify yes; +}; + +key rndc_key { + secret "1234abcd8765"; + algorithm hmac-sha256; +}; + +controls { + inet 10.53.0.2 port @CONTROLPORT@ allow { any; } keys { rndc_key; }; +}; + + +zone "example" { + type primary; + file "example.db"; + allow-update { any; }; +}; diff --git a/bin/tests/system/fetchlimit/ns3/named.args b/bin/tests/system/fetchlimit/ns3/named.args new file mode 100644 index 0000000..6bd3e6c --- /dev/null +++ b/bin/tests/system/fetchlimit/ns3/named.args @@ -0,0 +1 @@ +-m record,size,mctx -c named.conf -d 1 -D fetchlimit-ns3 -X named.lock -g -T maxcachesize=2097152 diff --git a/bin/tests/system/fetchlimit/ns3/named1.conf.in b/bin/tests/system/fetchlimit/ns3/named1.conf.in new file mode 100644 index 0000000..3adfe47 --- /dev/null +++ b/bin/tests/system/fetchlimit/ns3/named1.conf.in @@ -0,0 +1,47 @@ +/* + * 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. + */ + +controls { /* empty */ }; + +options { + query-source address 10.53.0.3; + notify-source 10.53.0.3; + transfer-source 10.53.0.3; + port @PORT@; + directory "."; + pid-file "named.pid"; + listen-on { 10.53.0.3; }; + listen-on-v6 { none; }; + recursion yes; + dnssec-validation yes; + notify yes; + fetches-per-server 400; +}; + +server 10.53.0.4 { + edns no; +}; + +key rndc_key { + secret "1234abcd8765"; + algorithm hmac-sha256; +}; + +controls { + inet 10.53.0.3 port @CONTROLPORT@ allow { any; } keys { rndc_key; }; +}; + +zone "." { + type hint; + file "root.hint"; +}; diff --git a/bin/tests/system/fetchlimit/ns3/named2.conf.in b/bin/tests/system/fetchlimit/ns3/named2.conf.in new file mode 100644 index 0000000..74374b1 --- /dev/null +++ b/bin/tests/system/fetchlimit/ns3/named2.conf.in @@ -0,0 +1,45 @@ +/* + * 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 { + query-source address 10.53.0.3; + notify-source 10.53.0.3; + transfer-source 10.53.0.3; + port @PORT@; + directory "."; + pid-file "named.pid"; + listen-on { 10.53.0.3; }; + listen-on-v6 { none; }; + recursion yes; + dnssec-validation yes; + notify yes; + fetches-per-zone 40; +}; + +server 10.53.0.4 { + edns no; +}; + +key rndc_key { + secret "1234abcd8765"; + algorithm hmac-sha256; +}; + +controls { + inet 10.53.0.3 port @CONTROLPORT@ allow { any; } keys { rndc_key; }; +}; + +zone "." { + type hint; + file "root.hint"; +}; diff --git a/bin/tests/system/fetchlimit/ns3/named3.conf.in b/bin/tests/system/fetchlimit/ns3/named3.conf.in new file mode 100644 index 0000000..3df353b --- /dev/null +++ b/bin/tests/system/fetchlimit/ns3/named3.conf.in @@ -0,0 +1,45 @@ +/* + * 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 { + query-source address 10.53.0.3; + notify-source 10.53.0.3; + transfer-source 10.53.0.3; + port @PORT@; + directory "."; + pid-file "named.pid"; + listen-on { 10.53.0.3; }; + listen-on-v6 { none; }; + recursion yes; + dnssec-validation yes; + notify yes; + recursive-clients 400; +}; + +server 10.53.0.4 { + edns no; +}; + +key rndc_key { + secret "1234abcd8765"; + algorithm hmac-sha256; +}; + +controls { + inet 10.53.0.3 port @CONTROLPORT@ allow { any; } keys { rndc_key; }; +}; + +zone "." { + type hint; + file "root.hint"; +}; diff --git a/bin/tests/system/fetchlimit/ns3/root.hint b/bin/tests/system/fetchlimit/ns3/root.hint new file mode 100644 index 0000000..e0f186c --- /dev/null +++ b/bin/tests/system/fetchlimit/ns3/root.hint @@ -0,0 +1,14 @@ +; 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 999999 +. IN NS a.root-servers.nil. +a.root-servers.nil. IN A 10.53.0.1 diff --git a/bin/tests/system/fetchlimit/prereq.sh b/bin/tests/system/fetchlimit/prereq.sh new file mode 100644 index 0000000..ec369f8 --- /dev/null +++ b/bin/tests/system/fetchlimit/prereq.sh @@ -0,0 +1,23 @@ +#!/bin/sh + +# 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. + +SYSTEMTESTTOP=.. +. $SYSTEMTESTTOP/conf.sh + +if $PERL -e 'use Net::DNS;' 2>/dev/null +then + : +else + echo_i "This test requires the Net::DNS library." >&2 + exit 1 +fi diff --git a/bin/tests/system/fetchlimit/setup.sh b/bin/tests/system/fetchlimit/setup.sh new file mode 100644 index 0000000..7f5cbe7 --- /dev/null +++ b/bin/tests/system/fetchlimit/setup.sh @@ -0,0 +1,19 @@ +#!/bin/sh + +# 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. + +SYSTEMTESTTOP=.. +. $SYSTEMTESTTOP/conf.sh + +copy_setports ns1/named.conf.in ns1/named.conf +copy_setports ns2/named.conf.in ns2/named.conf +copy_setports ns3/named1.conf.in ns3/named.conf diff --git a/bin/tests/system/fetchlimit/tests.sh b/bin/tests/system/fetchlimit/tests.sh new file mode 100644 index 0000000..55f4bf6 --- /dev/null +++ b/bin/tests/system/fetchlimit/tests.sh @@ -0,0 +1,200 @@ +#!/bin/sh + +# 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. + +SYSTEMTESTTOP=.. +. $SYSTEMTESTTOP/conf.sh + +DIGCMD="$DIG @10.53.0.3 -p ${PORT} +tcp +tries=1 +time=1" +RNDCCMD="$RNDC -p ${CONTROLPORT} -s 10.53.0.3 -c ../common/rndc.conf" + +burst() { + num=${3:-20} + rm -f burst.input.$$ + while [ $num -gt 0 ]; do + num=$((num-1)) + echo "${num}${1}${2}.lamesub.example A" >> burst.input.$$ + done + $PERL ../ditch.pl -p ${PORT} -s 10.53.0.3 burst.input.$$ + rm -f burst.input.$$ +} + +stat() { + clients=`$RNDCCMD status | grep "recursive clients" | + sed 's;.*: \([^/][^/]*\)/.*;\1;'` + echo_i "clients: $clients" + [ "$clients" = "" ] && return 1 + [ "$clients" -ge $1 ] || return 1 + [ "$clients" -le $2 ] || return 1 + return 0 +} + +status=0 + +echo_i "checking recursing clients are dropped at the per-server limit" +ret=0 +# make the server lame and restart +$RNDCCMD flush +touch ans4/norespond +for try in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20; do + burst a $try + # fetches-per-server is at 400, but at 20qps against a lame server, + # we'll reach 200 at the tenth second, and the quota should have been + # tuned to less than that by then. + [ $try -le 5 ] && low=$((try*10)) + stat 20 200 || ret=1 + [ $ret -eq 1 ] && break + sleep 1 +done +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +echo_i "dumping ADB data" +$RNDCCMD dumpdb -adb +info=`grep '10.53.0.4' ns3/named_dump.db | sed 's/.*\(atr [.0-9]*\).*\(quota [0-9]*\).*/\1 \2/'` +echo_i $info +set -- $info +quota=$5 +[ ${5:-200} -lt 200 ] || ret=1 + +echo_i "checking servfail statistics" +ret=0 +rm -f ns3/named.stats +$RNDCCMD stats +for try in 1 2 3 4 5; do + [ -f ns3/named.stats ] && break + sleep 1 +done +sspill=`grep 'spilled due to server' ns3/named.stats | sed 's/\([0-9][0-9]*\) spilled.*/\1/'` +[ -z "$sspill" ] && sspill=0 +fails=`grep 'queries resulted in SERVFAIL' ns3/named.stats | sed 's/\([0-9][0-9]*\) queries.*/\1/'` +[ -z "$fails" ] && fails=0 +[ "$fails" -ge "$sspill" ] || ret=1 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +echo_i "checking lame server recovery" +ret=0 +rm -f ans4/norespond +for try in 1 2 3 4 5; do + burst b $try + stat 0 200 || ret=1 + [ $ret -eq 1 ] && break + sleep 1 +done + +echo_i "dumping ADB data" +$RNDCCMD dumpdb -adb +info=`grep '10.53.0.4' ns3/named_dump.db | sed 's/.*\(atr [.0-9]*\).*\(quota [0-9]*\).*/\1 \2/'` +echo_i $info +set -- $info +[ ${5:-${quota}} -lt $quota ] || ret=1 +quota=$5 + +for try in 1 2 3 4 5 6 7 8 9 10; do + burst c $try + stat 0 20 || ret=1 + [ $ret -eq 1 ] && break + sleep 1 +done + +echo_i "dumping ADB data" +$RNDCCMD dumpdb -adb +info=`grep '10.53.0.4' ns3/named_dump.db | sed 's/.*\(atr [.0-9]*\).*\(quota [0-9]*\).*/\1 \2/'` +echo_i $info +set -- $info +[ ${5:-${quota}} -gt $quota ] || ret=1 +quota=$5 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +copy_setports ns3/named2.conf.in ns3/named.conf +rndc_reconfig ns3 10.53.0.3 + +echo_i "checking lame server clients are dropped at the per-domain limit" +ret=0 +fail=0 +success=0 +touch ans4/norespond +for try in 1 2 3 4 5; do + burst b $try 300 + $DIGCMD a ${try}.example > dig.out.ns3.$try + grep "status: NOERROR" dig.out.ns3.$try > /dev/null 2>&1 && \ + success=$((success+1)) + grep "status: SERVFAIL" dig.out.ns3.$try > /dev/null 2>&1 && \ + fail=$(($fail+1)) + stat 30 50 || ret=1 + [ $ret -eq 1 ] && break + $RNDCCMD recursing 2>&1 | sed 's/^/ns3 /' | cat_i + sleep 1 +done +echo_i "$success successful valid queries, $fail SERVFAIL" +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +echo_i "checking drop statistics" +rm -f ns3/named.stats +$RNDCCMD stats +for try in 1 2 3 4 5; do + [ -f ns3/named.stats ] && break + sleep 1 +done +zspill=`grep 'spilled due to zone' ns3/named.stats | sed 's/\([0-9][0-9]*\) spilled.*/\1/'` +[ -z "$zspill" ] && zspill=0 +drops=`grep 'queries dropped' ns3/named.stats | sed 's/\([0-9][0-9]*\) queries.*/\1/'` +[ -z "$drops" ] && drops=0 +[ "$drops" -ge "$zspill" ] || ret=1 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +copy_setports ns3/named3.conf.in ns3/named.conf +rndc_reconfig ns3 10.53.0.3 + +echo_i "checking lame server clients are dropped below the hard limit" +ret=0 +fail=0 +exceeded=0 +success=0 +touch ans4/norespond +for try in 1 2 3 4 5; do + burst b $try 400 + $DIGCMD +time=2 a ${try}.example > dig.out.ns3.$try + stat 100 400 || exceeded=$((exceeded + 1)) + grep "status: NOERROR" dig.out.ns3.$try > /dev/null 2>&1 && \ + success=$((success+1)) + grep "status: SERVFAIL" dig.out.ns3.$try > /dev/null 2>&1 && \ + fail=$(($fail+1)) + sleep 1 +done +echo_i "$success successful valid queries (expected 5)" +[ "$success" -eq 5 ] || { echo_i "failed"; ret=1; } +echo_i "$fail SERVFAIL responses (expected 0)" +[ "$fail" -eq 0 ] || { echo_i "failed"; ret=1; } +echo_i "clients count exceeded 400 on $exceeded trials (expected 0)" +[ "$exceeded" -eq 0 ] || { echo_i "failed"; ret=1; } +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +echo_i "checking drop statistics" +rm -f ns3/named.stats +$RNDCCMD stats +for try in 1 2 3 4 5; do + [ -f ns3/named.stats ] && break + sleep 1 +done +drops=`grep 'queries dropped due to recursive client limit' ns3/named.stats | sed 's/\([0-9][0-9]*\) queries.*/\1/'` +[ "${drops:-0}" -ne 0 ] || ret=1 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +echo_i "exit status: $status" +[ $status -eq 0 ] || exit 1 |