#!/bin/sh
#
# Copyright (C) 2015, 2016 Internet Systems Consortium, Inc. ("ISC")
#
# 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 http://mozilla.org/MPL/2.0/.
SYSTEMTESTTOP=..
. $SYSTEMTESTTOP/conf.sh
DIGCMD="$DIG @10.53.0.3 -p 5300 +tries=1 +time=1"
RNDCCMD="$RNDC -p 9953 -s 10.53.0.3 -c ../common/rndc.conf"
burst() {
num=${3:-20}
rm -f burst.input.$$
while [ $num -gt 0 ]; do
num=`expr $num - 1`
echo "${num}${1}${2}.lamesub.example A" >> burst.input.$$
done
$PERL ../ditch.pl -p 5300 -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" -le $1 ]
}
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
stat 200 || ret=1
[ $ret -eq 1 ] && break
sleep 1
done
if [ $ret != 0 ]; then echo "I: failed"; fi
status=`expr $status + $ret`
echo "I: dumping ADB data"
$RNDCCMD dumpdb -adb
info=`grep '10.53.0.4' ns3/named_dump.db | sed 's/.*\(atr [.0-9]*\).*\(quota [0-9]*\).*/I: \1 \2/'`
echo $info
set -- $info
quota=$5
[ ${5:-200} -lt 200 ] || ret=1
echo "I: checking servfail 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
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=`expr $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 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/.*\(atr [.0-9]*\).*\(quota [0-9]*\).*/I: \1 \2/'`
echo $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 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/.*\(atr [.0-9]*\).*\(quota [0-9]*\).*/I: \1 \2/'`
echo $info
set -- $info
[ ${5:-${quota}} -gt $quota ] || ret=1
quota=$5
if [ $ret != 0 ]; then echo "I: failed"; fi
status=`expr $status + $ret`
if [ $ret != 0 ]; then echo "I: failed"; fi
status=`expr $status + $ret`
cp -f ns3/named2.conf ns3/named.conf
$RNDCCMD reconfig 2>&1 | sed 's/^/I:ns3 /'
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=`expr $success + 1`
grep "status: SERVFAIL" dig.out.ns3.$try > /dev/null 2>&1 && \
fail=`expr $fail + 1`
stat 50 || ret=1
[ $ret -eq 1 ] && break
$RNDCCMD recursing 2>&1 | sed 's/^/I:ns3 /'
sleep 1
done
echo "I: $success successful valid queries, $fail SERVFAIL"
if [ $ret != 0 ]; then echo "I: failed"; fi
status=`expr $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=`expr $status + $ret`
cp -f ns3/named3.conf ns3/named.conf
$RNDCCMD reconfig 2>&1 | sed 's/^/I:ns3 /'
echo "I: checking lame server clients are dropped at the soft limit"
ret=0
fail=0
success=0
touch ans4/norespond
for try in 1 2 3 4 5; do
burst b $try 400
$DIG @10.53.0.3 -p 5300 a ${try}.example > dig.out.ns3.$try
stat 360 || ret=1
grep "status: NOERROR" dig.out.ns3.$try > /dev/null 2>&1 && \
success=`expr $success + 1`
grep "status: SERVFAIL" dig.out.ns3.$try > /dev/null 2>&1 && \
fail=`expr $fail + 1`
[ $ret -eq 1 ] && break
sleep 1
done
echo "I: $success successful valid queries, $fail SERVFAIL"
[ "$success" -eq 5 ] || ret=1
if [ $ret != 0 ]; then echo "I: failed"; fi
status=`expr $status + $ret`
echo "I:exit status: $status"
[ $status -eq 0 ] || exit 1