Adding upstream version 1:9.16.44.upstream/1%9.16.44

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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