diff options
Diffstat (limited to '')
| -rw-r--r-- | bin/tests/system/fetchlimit/tests.sh | 200 |
1 files changed, 200 insertions, 0 deletions
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 |