path: root/bin/tests/system/dnstap/tests.sh

#!/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

DIGOPTS="+short -p ${PORT}"
RNDCCMD="$RNDC -p ${CONTROLPORT} -c ../common/rndc.conf"

status=0

# dnstap_data_ready <fstrm_capture_PID> <capture_file> <min_file_size>
# Flushes capture_file and checks wheter its size is >= min_file_size.
dnstap_data_ready() {
  # Process id of running fstrm_capture.
  fstrm_capture_pid=$1
  # Output file provided to fstrm_capture via -w switch.
  capture_file=$2
  # Minimum expected file size.
  min_size_expected=$3

  kill -HUP $fstrm_capture_pid
  file_size=$(wc -c <"$capture_file" | tr -d ' ')
  if [ $file_size -lt $min_size_expected ]; then
    return 1
  fi
}

for bad in bad-*.conf; do
  ret=0
  echo_i "checking that named-checkconf detects error in $bad"
  $CHECKCONF $bad >/dev/null 2>&1
  if [ $? != 1 ]; then
    echo_i "failed"
    ret=1
  fi
  status=$(expr $status + $ret)
done

for good in good-*.conf; do
  ret=0
  echo_i "checking that named-checkconf detects no error in $good"
  $CHECKCONF $good >/dev/null 2>&1
  if [ $? != 0 ]; then
    echo_i "failed"
    ret=1
  fi
  status=$(expr $status + $ret)
done

echo_i "wait for servers to finish loading"
ret=0
wait_for_log 20 "all zones loaded" ns1/named.run || ret=1
wait_for_log 20 "all zones loaded" ns2/named.run || ret=1
wait_for_log 20 "all zones loaded" ns3/named.run || ret=1
wait_for_log 20 "all zones loaded" ns4/named.run || ret=1
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$(expr $status + $ret)

# both the 'a.example/A' lookup and the './NS' lookup to ns1
# need tocomplete before reopening/rolling for the counts to
# be correct.

$DIG $DIGOPTS @10.53.0.3 a.example >dig.out
wait_for_log 20 "(./NS): query_reset" ns1/named.run || true

# check three different dnstap reopen/roll methods:
# ns1: dnstap-reopen; ns2: dnstap -reopen; ns3: dnstap -roll
mv ns1/dnstap.out ns1/dnstap.out.save
mv ns2/dnstap.out ns2/dnstap.out.save

if [ -n "$FSTRM_CAPTURE" ]; then
  ret=0
  echo_i "starting fstrm_capture"
  $FSTRM_CAPTURE -t protobuf:dnstap.Dnstap -u ns4/dnstap.out \
    -w dnstap.out >fstrm_capture.out.1 2>&1 &
  fstrm_capture_pid=$!
  wait_for_log 10 "socket path ns4/dnstap.out" fstrm_capture.out.1 || ret=1
  if [ $ret != 0 ]; then echo_i "failed"; fi
  status=$(expr $status + $ret)
fi

$RNDCCMD -s 10.53.0.1 dnstap-reopen | sed 's/^/ns1 /' | cat_i
$RNDCCMD -s 10.53.0.2 dnstap -reopen | sed 's/^/ns2 /' | cat_i
$RNDCCMD -s 10.53.0.3 dnstap -roll | sed 's/^/ns3 /' | cat_i
$RNDCCMD -s 10.53.0.4 dnstap -reopen | sed 's/^/ns4 /' | cat_i

$DIG $DIGOPTS @10.53.0.3 a.example >dig.out

# send an UPDATE to ns2
$NSUPDATE <<-EOF
server 10.53.0.2 ${PORT}
zone example
update add b.example 3600 in a 10.10.10.10
send
EOF

# XXX: file output should be flushed once a second according
# to the libfstrm source, but it doesn't seem to happen until
# enough data has accumulated. to get all the output, we stop
# the name servers, forcing a flush on shutdown. it would be
# nice to find a better way to do this.
$RNDCCMD -s 10.53.0.1 stop | sed 's/^/ns1 /' | cat_i
$RNDCCMD -s 10.53.0.2 stop | sed 's/^/ns2 /' | cat_i
$RNDCCMD -s 10.53.0.3 stop | sed 's/^/ns3 /' | cat_i

sleep 1

echo_i "checking initial message counts"

udp1=$($DNSTAPREAD ns1/dnstap.out.save | grep "UDP " | wc -l)
tcp1=$($DNSTAPREAD ns1/dnstap.out.save | grep "TCP " | wc -l)
aq1=$($DNSTAPREAD ns1/dnstap.out.save | grep "AQ " | wc -l)
ar1=$($DNSTAPREAD ns1/dnstap.out.save | grep "AR " | wc -l)
cq1=$($DNSTAPREAD ns1/dnstap.out.save | grep "CQ " | wc -l)
cr1=$($DNSTAPREAD ns1/dnstap.out.save | grep "CR " | wc -l)
rq1=$($DNSTAPREAD ns1/dnstap.out.save | grep "RQ " | wc -l)
rr1=$($DNSTAPREAD ns1/dnstap.out.save | grep "RR " | wc -l)
uq1=$($DNSTAPREAD ns1/dnstap.out.save | grep "UQ " | wc -l)
ur1=$($DNSTAPREAD ns1/dnstap.out.save | grep "UR " | wc -l)

udp2=$($DNSTAPREAD ns2/dnstap.out.save | grep "UDP " | wc -l)
tcp2=$($DNSTAPREAD ns2/dnstap.out.save | grep "TCP " | wc -l)
aq2=$($DNSTAPREAD ns2/dnstap.out.save | grep "AQ " | wc -l)
ar2=$($DNSTAPREAD ns2/dnstap.out.save | grep "AR " | wc -l)
cq2=$($DNSTAPREAD ns2/dnstap.out.save | grep "CQ " | wc -l)
cr2=$($DNSTAPREAD ns2/dnstap.out.save | grep "CR " | wc -l)
rq2=$($DNSTAPREAD ns2/dnstap.out.save | grep "RQ " | wc -l)
rr2=$($DNSTAPREAD ns2/dnstap.out.save | grep "RR " | wc -l)
uq2=$($DNSTAPREAD ns2/dnstap.out.save | grep "UQ " | wc -l)
ur2=$($DNSTAPREAD ns2/dnstap.out.save | grep "UR " | wc -l)

mv ns3/dnstap.out.0 ns3/dnstap.out.save
udp3=$($DNSTAPREAD ns3/dnstap.out.save | grep "UDP " | wc -l)
tcp3=$($DNSTAPREAD ns3/dnstap.out.save | grep "TCP " | wc -l)
aq3=$($DNSTAPREAD ns3/dnstap.out.save | grep "AQ " | wc -l)
ar3=$($DNSTAPREAD ns3/dnstap.out.save | grep "AR " | wc -l)
cq3=$($DNSTAPREAD ns3/dnstap.out.save | grep "CQ " | wc -l)
cr3=$($DNSTAPREAD ns3/dnstap.out.save | grep "CR " | wc -l)
rq3=$($DNSTAPREAD ns3/dnstap.out.save | grep "RQ " | wc -l)
rr3=$($DNSTAPREAD ns3/dnstap.out.save | grep "RR " | wc -l)
uq3=$($DNSTAPREAD ns3/dnstap.out.save | grep "UQ " | wc -l)
ur3=$($DNSTAPREAD ns3/dnstap.out.save | grep "UR " | wc -l)

echo_i "checking UDP message counts"
ret=0
[ $udp1 -eq 0 ] || {
  echo_i "ns1 $udp1 expected 0"
  ret=1
}
[ $udp2 -eq 2 ] || {
  echo_i "ns2 $udp2 expected 2"
  ret=1
}
[ $udp3 -eq 4 ] || {
  echo_i "ns3 $udp3 expected 4"
  ret=1
}
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$(expr $status + $ret)

echo_i "checking TCP message counts"
ret=0
[ $tcp1 -eq 6 ] || {
  echo_i "ns1 $tcp1 expected 6"
  ret=1
}
[ $tcp2 -eq 2 ] || {
  echo_i "ns2 $tcp2 expected 2"
  ret=1
}
[ $tcp3 -eq 6 ] || {
  echo_i "ns3 $tcp3 expected 6"
  ret=1
}
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$(expr $status + $ret)

echo_i "checking AUTH_QUERY message counts"
ret=0
[ $aq1 -eq 3 ] || {
  echo_i "ns1 $aq1 exepcted 3"
  ret=1
}
[ $aq2 -eq 2 ] || {
  echo_i "ns2 $aq2 expected 2"
  ret=1
}
[ $aq3 -eq 1 ] || {
  echo_i "ns3 $aq3 expected 1"
  ret=1
}
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$(expr $status + $ret)

echo_i "checking AUTH_RESPONSE message counts"
ret=0
[ $ar1 -eq 2 ] || {
  echo_i "ns1 $ar1 expected 2"
  ret=1
}
[ $ar2 -eq 1 ] || {
  echo_i "ns2 $ar2 expected 1"
  ret=1
}
[ $ar3 -eq 0 ] || {
  echo_i "ns3 $ar3 expected 0"
  ret=1
}
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$(expr $status + $ret)

echo_i "checking CLIENT_QUERY message counts"
ret=0
[ $cq1 -eq 0 ] || {
  echo_i "ns1 $cq1 expected 0"
  ret=1
}
[ $cq2 -eq 0 ] || {
  echo_i "ns2 $cq2 expected 0"
  ret=1
}
[ $cq3 -eq 1 ] || {
  echo_i "ns3 $cq3 expected 1"
  ret=1
}
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$(expr $status + $ret)

echo_i "checking CLIENT_RESPONSE message counts"
ret=0
[ $cr1 -eq 1 ] || {
  echo_i "ns1 $cr1 expected 1"
  ret=1
}
[ $cr2 -eq 1 ] || {
  echo_i "ns2 $cr2 expected 1"
  ret=1
}
[ $cr3 -eq 2 ] || {
  echo_i "ns3 $cr3 expected 2"
  ret=1
}
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$(expr $status + $ret)

echo_i "checking RESOLVER_QUERY message counts"
ret=0
[ $rq1 -eq 0 ] || {
  echo_i "ns1 $rq1 expected 0"
  ret=1
}
[ $rq2 -eq 0 ] || {
  echo_i "ns2 $rq2 expected 0"
  ret=1
}
[ $rq3 -eq 3 ] || {
  echo_i "ns3 $rq3 expected 3"
  ret=1
}
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$(expr $status + $ret)

echo_i "checking RESOLVER_RESPONSE message counts"
ret=0
[ $rr1 -eq 0 ] || {
  echo_i "ns1 $rr1 expected 0"
  ret=1
}
[ $rr2 -eq 0 ] || {
  echo_i "ns2 $rr2 expected 0"
  ret=1
}
[ $rr3 -eq 3 ] || {
  echo_i "ns3 $rr3 expected 3"
  ret=1
}
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$(expr $status + $ret)

echo_i "checking UPDATE_QUERY message counts"
ret=0
[ $uq1 -eq 0 ] || {
  echo_i "ns1 $uq1 expected 0"
  ret=1
}
[ $uq2 -eq 0 ] || {
  echo_i "ns2 $uq2 expected 0"
  ret=1
}
[ $uq3 -eq 0 ] || {
  echo_i "ns3 $uq3 expected 0"
  ret=1
}
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$(expr $status + $ret)

echo_i "checking UPDATE_RESPONSE message counts"
ret=0
[ $ur1 -eq 0 ] || {
  echo_i "ns1 $ur1 expected 0"
  ret=1
}
[ $ur2 -eq 0 ] || {
  echo_i "ns2 $ur2 expected 0"
  ret=1
}
[ $ur3 -eq 0 ] || {
  echo_i "ns3 $ur3 expected 0"
  ret=1
}
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$(expr $status + $ret)

echo_i "checking reopened message counts"

udp1=$($DNSTAPREAD ns1/dnstap.out | grep "UDP " | wc -l)
tcp1=$($DNSTAPREAD ns1/dnstap.out | grep "TCP " | wc -l)
aq1=$($DNSTAPREAD ns1/dnstap.out | grep "AQ " | wc -l)
ar1=$($DNSTAPREAD ns1/dnstap.out | grep "AR " | wc -l)
cq1=$($DNSTAPREAD ns1/dnstap.out | grep "CQ " | wc -l)
cr1=$($DNSTAPREAD ns1/dnstap.out | grep "CR " | wc -l)
rq1=$($DNSTAPREAD ns1/dnstap.out | grep "RQ " | wc -l)
rr1=$($DNSTAPREAD ns1/dnstap.out | grep "RR " | wc -l)
uq1=$($DNSTAPREAD ns1/dnstap.out | grep "UQ " | wc -l)
ur1=$($DNSTAPREAD ns1/dnstap.out | grep "UR " | wc -l)

udp2=$($DNSTAPREAD ns2/dnstap.out | grep "UDP " | wc -l)
tcp2=$($DNSTAPREAD ns2/dnstap.out | grep "TCP " | wc -l)
aq2=$($DNSTAPREAD ns2/dnstap.out | grep "AQ " | wc -l)
ar2=$($DNSTAPREAD ns2/dnstap.out | grep "AR " | wc -l)
cq2=$($DNSTAPREAD ns2/dnstap.out | grep "CQ " | wc -l)
cr2=$($DNSTAPREAD ns2/dnstap.out | grep "CR " | wc -l)
rq2=$($DNSTAPREAD ns2/dnstap.out | grep "RQ " | wc -l)
rr2=$($DNSTAPREAD ns2/dnstap.out | grep "RR " | wc -l)
uq2=$($DNSTAPREAD ns2/dnstap.out | grep "UQ " | wc -l)
ur2=$($DNSTAPREAD ns2/dnstap.out | grep "UR " | wc -l)

udp3=$($DNSTAPREAD ns3/dnstap.out | grep "UDP " | wc -l)
tcp3=$($DNSTAPREAD ns3/dnstap.out | grep "TCP " | wc -l)
aq3=$($DNSTAPREAD ns3/dnstap.out | grep "AQ " | wc -l)
ar3=$($DNSTAPREAD ns3/dnstap.out | grep "AR " | wc -l)
cq3=$($DNSTAPREAD ns3/dnstap.out | grep "CQ " | wc -l)
cr3=$($DNSTAPREAD ns3/dnstap.out | grep "CR " | wc -l)
rq3=$($DNSTAPREAD ns3/dnstap.out | grep "RQ " | wc -l)
rr3=$($DNSTAPREAD ns3/dnstap.out | grep "RR " | wc -l)
uq3=$($DNSTAPREAD ns3/dnstap.out | grep "UQ " | wc -l)
ur3=$($DNSTAPREAD ns3/dnstap.out | grep "UR " | wc -l)

echo_i "checking UDP message counts"
ret=0
[ $udp1 -eq 0 ] || {
  echo_i "ns1 $udp1 expected 0"
  ret=1
}
[ $udp2 -eq 2 ] || {
  echo_i "ns2 $udp2 expected 2"
  ret=1
}
[ $udp3 -eq 2 ] || {
  echo_i "ns3 $udp3 expected 2"
  ret=1
}
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$(expr $status + $ret)

echo_i "checking TCP message counts"
ret=0
[ $tcp1 -eq 0 ] || {
  echo_i "ns1 $tcp1 expected 0"
  ret=1
}
[ $tcp2 -eq 0 ] || {
  echo_i "ns2 $tcp2 expected 0"
  ret=1
}
[ $tcp3 -eq 0 ] || {
  echo_i "ns3 $tcp3 expected 0"
  ret=1
}
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$(expr $status + $ret)

echo_i "checking AUTH_QUERY message counts"
ret=0
[ $aq1 -eq 0 ] || {
  echo_i "ns1 $aq1 exepcted 0"
  ret=1
}
[ $aq2 -eq 0 ] || {
  echo_i "ns2 $aq2 expected 0"
  ret=1
}
[ $aq3 -eq 0 ] || {
  echo_i "ns3 $aq3 expected 0"
  ret=1
}
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$(expr $status + $ret)

echo_i "checking AUTH_RESPONSE message counts"
ret=0
[ $ar1 -eq 0 ] || {
  echo_i "ns1 $ar1 expected 0"
  ret=1
}
[ $ar2 -eq 0 ] || {
  echo_i "ns2 $ar2 expected 0"
  ret=1
}
[ $ar3 -eq 0 ] || {
  echo_i "ns3 $ar3 expected 0"
  ret=1
}
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$(expr $status + $ret)

echo_i "checking CLIENT_QUERY message counts"
ret=0
[ $cq1 -eq 0 ] || {
  echo_i "ns1 $cq1 expected 0"
  ret=1
}
[ $cq2 -eq 0 ] || {
  echo_i "ns2 $cq2 expected 0"
  ret=1
}
[ $cq3 -eq 1 ] || {
  echo_i "ns3 $cq3 expected 1"
  ret=1
}
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$(expr $status + $ret)

echo_i "checking CLIENT_RESPONSE message counts"
ret=0
[ $cr1 -eq 0 ] || {
  echo_i "ns1 $cr1 expected 0"
  ret=1
}
[ $cr2 -eq 0 ] || {
  echo_i "ns2 $cr2 expected 0"
  ret=1
}
[ $cr3 -eq 1 ] || {
  echo_i "ns3 $cr3 expected 1"
  ret=1
}
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$(expr $status + $ret)

echo_i "checking RESOLVER_QUERY message counts"
ret=0
[ $rq1 -eq 0 ] || {
  echo_i "ns1 $rq1 expected 0"
  ret=1
}
[ $rq2 -eq 0 ] || {
  echo_i "ns2 $rq2 expected 0"
  ret=1
}
[ $rq3 -eq 0 ] || {
  echo_i "ns3 $rq3 expected 0"
  ret=1
}
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$(expr $status + $ret)

echo_i "checking RESOLVER_RESPONSE message counts"
ret=0
[ $rr1 -eq 0 ] || {
  echo_i "ns1 $rr1 expected 0"
  ret=1
}
[ $rr2 -eq 0 ] || {
  echo_i "ns2 $rr2 expected 0"
  ret=1
}
[ $rr3 -eq 0 ] || {
  echo_i "ns3 $rr3 expected 0"
  ret=1
}
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$(expr $status + $ret)

echo_i "checking UPDATE_QUERY message counts"
ret=0
[ $uq1 -eq 0 ] || {
  echo_i "ns1 $uq1 expected 0"
  ret=1
}
[ $uq2 -eq 1 ] || {
  echo_i "ns2 $uq2 expected 1"
  ret=1
}
[ $uq3 -eq 0 ] || {
  echo_i "ns3 $uq3 expected 0"
  ret=1
}
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$(expr $status + $ret)

echo_i "checking UPDATE_RESPONSE message counts"
ret=0
[ $ur1 -eq 0 ] || {
  echo_i "ns1 $ur1 expected 0"
  ret=1
}
[ $ur2 -eq 1 ] || {
  echo_i "ns2 $ur2 expected 1"
  ret=1
}
[ $ur3 -eq 0 ] || {
  echo_i "ns3 $ur3 expected 0"
  ret=1
}
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$(expr $status + $ret)

echo_i "checking whether destination UDP port is logged for client queries"
ret=0
$DNSTAPREAD ns3/dnstap.out.save | grep -Eq "CQ [0-9:.]+ -> 10.53.0.3:${PORT} UDP" || ret=1
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$(expr $status + $ret)

HAS_PYYAML=0
if [ -n "$PYTHON" ]; then
  $PYTHON -c "import yaml" 2>/dev/null && HAS_PYYAML=1
fi

if [ $HAS_PYYAML -ne 0 ]; then
  echo_i "checking dnstap-read YAML output"
  ret=0
  {
    $PYTHON ydump.py "$DNSTAPREAD" "ns3/dnstap.out.save" >ydump.out || ret=1
  } | cat_i
  if [ $ret != 0 ]; then echo_i "failed"; fi
  status=$(expr $status + $ret)
fi

echo_i "checking dnstap-read hex output"
ret=0
hex=$($DNSTAPREAD -x ns3/dnstap.out | tail -1)
echo $hex | $WIRETEST >dnstap.hex
grep 'status: NOERROR' dnstap.hex >/dev/null 2>&1 || ret=1
grep 'ANSWER: 3, AUTHORITY: 1' dnstap.hex >/dev/null 2>&1 || ret=1
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$(expr $status + $ret)

if [ -n "$FSTRM_CAPTURE" ]; then
  $DIG $DIGOPTS @10.53.0.4 a.example >dig.out

  # send an UPDATE to ns4
  $NSUPDATE <<-EOF >nsupdate.out 2>&1
	server 10.53.0.4 ${PORT}
	zone example
	update add b.example 3600 in a 10.10.10.10
	send
EOF
  grep "update failed: NOTAUTH" nsupdate.out >/dev/null || ret=1

  echo_i "checking unix socket message counts"
  sleep 2
  retry_quiet 5 dnstap_data_ready $fstrm_capture_pid dnstap.out 450 || {
    echo_i "dnstap output file smaller than expected"
    ret=1
  }
  if [ $ret != 0 ]; then echo_i "failed"; fi
  status=$(expr $status + $ret)
  kill $fstrm_capture_pid
  wait
  udp4=$($DNSTAPREAD dnstap.out | grep "UDP " | wc -l)
  tcp4=$($DNSTAPREAD dnstap.out | grep "TCP " | wc -l)
  aq4=$($DNSTAPREAD dnstap.out | grep "AQ " | wc -l)
  ar4=$($DNSTAPREAD dnstap.out | grep "AR " | wc -l)
  cq4=$($DNSTAPREAD dnstap.out | grep "CQ " | wc -l)
  cr4=$($DNSTAPREAD dnstap.out | grep "CR " | wc -l)
  rq4=$($DNSTAPREAD dnstap.out | grep "RQ " | wc -l)
  rr4=$($DNSTAPREAD dnstap.out | grep "RR " | wc -l)
  uq4=$($DNSTAPREAD dnstap.out | grep "UQ " | wc -l)
  ur4=$($DNSTAPREAD dnstap.out | grep "UR " | wc -l)

  echo_i "checking UDP message counts"
  ret=0
  [ $udp4 -eq 4 ] || {
    echo_i "ns4 $udp4 expected 4"
    ret=1
  }
  if [ $ret != 0 ]; then echo_i "failed"; fi
  status=$(expr $status + $ret)

  echo_i "checking TCP message counts"
  ret=0
  [ $tcp4 -eq 0 ] || {
    echo_i "ns4 $tcp4 expected 0"
    ret=1
  }
  if [ $ret != 0 ]; then echo_i "failed"; fi
  status=$(expr $status + $ret)

  echo_i "checking AUTH_QUERY message counts"
  ret=0
  [ $aq4 -eq 0 ] || {
    echo_i "ns4 $aq4 expected 0"
    ret=1
  }
  if [ $ret != 0 ]; then echo_i "failed"; fi
  status=$(expr $status + $ret)

  echo_i "checking AUTH_RESPONSE message counts"
  ret=0
  [ $ar4 -eq 0 ] || {
    echo_i "ns4 $ar4 expected 0"
    ret=1
  }
  if [ $ret != 0 ]; then echo_i "failed"; fi
  status=$(expr $status + $ret)

  echo_i "checking CLIENT_QUERY message counts"
  ret=0
  [ $cq4 -eq 1 ] || {
    echo_i "ns4 $cq4 expected 1"
    ret=1
  }
  if [ $ret != 0 ]; then echo_i "failed"; fi
  status=$(expr $status + $ret)

  echo_i "checking CLIENT_RESPONSE message counts"
  ret=0
  [ $cr4 -eq 1 ] || {
    echo_i "ns4 $cr4 expected 1"
    ret=1
  }
  if [ $ret != 0 ]; then echo_i "failed"; fi
  status=$(expr $status + $ret)

  echo_i "checking RESOLVER_QUERY message counts"
  ret=0
  [ $rq4 -eq 0 ] || {
    echo_i "ns4 $rq4 expected 0"
    ret=1
  }
  if [ $ret != 0 ]; then echo_i "failed"; fi
  status=$(expr $status + $ret)

  echo_i "checking RESOLVER_RESPONSE message counts"
  ret=0
  [ $rr4 -eq 0 ] || {
    echo_i "ns4 $rr4 expected 0"
    ret=1
  }

  echo_i "checking UPDATE_QUERY message counts"
  ret=0
  [ $uq4 -eq 1 ] || {
    echo_i "ns4 $uq4 expected 1"
    ret=1
  }
  if [ $ret != 0 ]; then echo_i "failed"; fi
  status=$(expr $status + $ret)

  echo_i "checking UPDATE_RESPONSE message counts"
  ret=0
  [ $ur4 -eq 1 ] || {
    echo_i "ns4 $ur4 expected 1"
    ret=1
  }
  if [ $ret != 0 ]; then echo_i "failed"; fi
  status=$(expr $status + $ret)

  mv dnstap.out dnstap.out.save

  echo_i "restarting fstrm_capture"
  $FSTRM_CAPTURE -t protobuf:dnstap.Dnstap -u ns4/dnstap.out \
    -w dnstap.out >fstrm_capture.out.2 2>&1 &
  fstrm_capture_pid=$!
  wait_for_log 10 "socket path ns4/dnstap.out" fstrm_capture.out.2 || {
    echo_i "failed"
    ret=1
  }
  $RNDCCMD -s 10.53.0.4 dnstap -reopen | sed 's/^/ns4 /' | cat_i
  $DIG $DIGOPTS @10.53.0.4 a.example >dig.out

  echo_i "checking reopened unix socket message counts"
  sleep 2
  retry_quiet 5 dnstap_data_ready $fstrm_capture_pid dnstap.out 270 || {
    echo_i "dnstap output file smaller than expected"
    ret=1
  }
  if [ $ret != 0 ]; then echo_i "failed"; fi
  status=$((status + ret))
  kill $fstrm_capture_pid
  wait
  udp4=$($DNSTAPREAD dnstap.out | grep "UDP " | wc -l)
  tcp4=$($DNSTAPREAD dnstap.out | grep "TCP " | wc -l)
  aq4=$($DNSTAPREAD dnstap.out | grep "AQ " | wc -l)
  ar4=$($DNSTAPREAD dnstap.out | grep "AR " | wc -l)
  cq4=$($DNSTAPREAD dnstap.out | grep "CQ " | wc -l)
  cr4=$($DNSTAPREAD dnstap.out | grep "CR " | wc -l)
  rq4=$($DNSTAPREAD dnstap.out | grep "RQ " | wc -l)
  rr4=$($DNSTAPREAD dnstap.out | grep "RR " | wc -l)
  uq4=$($DNSTAPREAD dnstap.out | grep "UQ " | wc -l)
  ur4=$($DNSTAPREAD dnstap.out | grep "UR " | wc -l)

  echo_i "checking UDP message counts"
  ret=0
  [ $udp4 -eq 2 ] || {
    echo_i "ns4 $udp4 expected 2"
    ret=1
  }
  if [ $ret != 0 ]; then echo_i "failed"; fi
  status=$(expr $status + $ret)

  echo_i "checking TCP message counts"
  ret=0
  [ $tcp4 -eq 0 ] || {
    echo_i "ns4 $tcp4 expected 0"
    ret=1
  }
  if [ $ret != 0 ]; then echo_i "failed"; fi
  status=$(expr $status + $ret)

  echo_i "checking AUTH_QUERY message counts"
  ret=0
  [ $aq4 -eq 0 ] || {
    echo_i "ns4 $aq4 expected 0"
    ret=1
  }
  if [ $ret != 0 ]; then echo_i "failed"; fi
  status=$(expr $status + $ret)

  echo_i "checking AUTH_RESPONSE message counts"
  ret=0
  [ $ar4 -eq 0 ] || {
    echo_i "ns4 $ar4 expected 0"
    ret=1
  }
  if [ $ret != 0 ]; then echo_i "failed"; fi
  status=$(expr $status + $ret)

  echo_i "checking CLIENT_QUERY message counts"
  ret=0
  [ $cq4 -eq 1 ] || {
    echo_i "ns4 $cq4 expected 1"
    ret=1
  }
  if [ $ret != 0 ]; then echo_i "failed"; fi
  status=$(expr $status + $ret)

  echo_i "checking CLIENT_RESPONSE message counts"
  ret=0
  [ $cr4 -eq 1 ] || {
    echo_i "ns4 $cr4 expected 1"
    ret=1
  }
  if [ $ret != 0 ]; then echo_i "failed"; fi
  status=$(expr $status + $ret)

  echo_i "checking RESOLVER_QUERY message counts"
  ret=0
  [ $rq4 -eq 0 ] || {
    echo_i "ns4 $rq4 expected 0"
    ret=1
  }
  if [ $ret != 0 ]; then echo_i "failed"; fi
  status=$(expr $status + $ret)

  echo_i "checking RESOLVER_RESPONSE message counts"
  ret=0
  [ $rr4 -eq 0 ] || {
    echo_i "ns4 $rr4 expected 0"
    ret=1
  }

  echo_i "checking UPDATE_QUERY message counts"
  ret=0
  [ $uq4 -eq 0 ] || {
    echo_i "ns4 $uq4 expected 0"
    ret=1
  }
  if [ $ret != 0 ]; then echo_i "failed"; fi
  status=$(expr $status + $ret)

  echo_i "checking UPDATE_RESPONSE message counts"
  ret=0
  [ $ur4 -eq 0 ] || {
    echo_i "ns4 $ur4 expected 0"
    ret=1
  }
  if [ $ret != 0 ]; then echo_i "failed"; fi
  status=$(expr $status + $ret)
fi

echo_i "checking large packet printing"
ret=0
# Expect one occurrence of "opcode: QUERY" below "reponse_message_data" and
# another one below "response_message".
lines=$($DNSTAPREAD -y large-answer.fstrm | grep -c "opcode: QUERY")
[ $lines -eq 2 ] || ret=1
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$(expr $status + $ret)

test_dnstap_roll() (
  ip="$1"
  ns="$2"
  n="$3"
  $RNDCCMD -s "${ip}" dnstap -roll "${n}" | sed "s/^/${ns} /" | cat_i \
    && files=$(find "$ns" -name "dnstap.out.[0-9]" | wc -l) \
    && test "$files" -le "${n}" && test "$files" -ge "1"
)

echo_i "checking 'rndc -roll <value>' (no versions)"
ret=0
start_server --noclean --restart --port "${PORT}" ns3
_repeat 5 test_dnstap_roll 10.53.0.3 ns3 3 || ret=1
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$((status + ret))

echo_i "checking 'rndc -roll <value>' (versions)"
ret=0
start_server --noclean --restart --port "${PORT}" ns2
_repeat 5 test_dnstap_roll 10.53.0.2 ns2 3 || ret=1
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$((status + ret))

echo_i "exit status: $status"
[ "$status" -eq 0 ] || exit 1