Adding upstream version 1:9.18.19.upstream/1%9.18.19upstream

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

1 files changed, 290 insertions, 0 deletions

diff --git a/bin/tests/system/rrl/tests.sh b/bin/tests/system/rrl/tests.sh
new file mode 100644
index 0000000..9465b93
--- /dev/null
+++ b/bin/tests/system/rrl/tests.sh
@@ -0,0 +1,290 @@
+#!/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.
+
+set -e
+
+# test response rate limiting
+
+. ../conf.sh
+
+RNDCCMD="$RNDC -c ../common/rndc.conf -p ${CONTROLPORT} -s"
+
+#set -x
+
+ns1=10.53.0.1			    # root, defining the others
+ns2=10.53.0.2			    # test server
+ns3=10.53.0.3			    # secondary test server
+ns4=10.53.0.4			    # log-only test server
+ns7=10.53.0.7			    # whitelisted client
+
+USAGE="$0: [-x]"
+while getopts "x" c; do
+    case $c in
+	x) set -x;;
+	*) echo "$USAGE" 1>&2; exit 1;;
+    esac
+done
+shift $((OPTIND - 1))
+if test "$#" -ne 0; then
+    echo "$USAGE" 1>&2
+    exit 1
+fi
+# really quit on control-C
+trap 'exit 1' 1 2 15
+
+
+ret=0
+setret () {
+    ret=1
+    echo_i "$*"
+}
+
+
+# Wait until soon after the start of a second to make results consistent.
+#   The start of a second credits a rate limit.
+#   This would be far easier in C or by assuming a modern version of perl.
+sec_start () {
+    START=$(date)
+    while true; do
+	NOW=$(date)
+	if test "$START" != "$NOW"; then
+	    return
+	fi
+	$PERL -e 'select(undef, undef, undef, 0.05)' || true
+    done
+}
+
+
+# turn off ${HOME}/.digrc
+HOME=/dev/null; export HOME
+
+#   $1=number of tests  $2=target domain  $3=dig options
+QNUM=1
+burst () {
+    BURST_LIMIT=$1; shift
+    BURST_DOM_BASE="$1"; shift
+
+    XCNT=$CNT
+    CNT='XXX'
+    eval FILENAME="mdig.out-$BURST_DOM_BASE"
+    CNT=$XCNT
+
+    DOMS=""
+    CNTS=$($PERL -e 'for ( $i = 0; $i < '$BURST_LIMIT'; $i++) { printf "%03d\n", '$QNUM' + $i; }')
+    for CNT in $CNTS
+    do
+        eval BURST_DOM="$BURST_DOM_BASE"
+        DOMS="$DOMS $BURST_DOM"
+    done
+    ARGS="+burst +nocookie +continue +time=1 +tries=1 -p ${PORT} $* @$ns2 $DOMS"
+    $MDIG $ARGS 2>&1 |                                                  \
+        tee -a full-$FILENAME |                                         \
+        sed -n -e '/^;; AUTHORITY/,/^$/d'			        \
+		-e '/^;; ADDITIONAL/,/^$/d'				\
+		-e 's/^[^;].*	\([^	 ]\{1,\}\)$/\1/p'		\
+		-e 's/;; flags.* tc .*/TC/p'				\
+		-e 's/;; .* status: NXDOMAIN.*/NXDOMAIN/p'		\
+		-e 's/;; .* status: NOERROR.*/NOERROR/p'		\
+		-e 's/;; .* status: SERVFAIL.*/SERVFAIL/p'		\
+		-e 's/response failed with timed out.*/drop/p'		\
+		-e 's/;; communications error to.*/drop/p' >> $FILENAME &
+    QNUM=$((QNUM + BURST_LIMIT))
+}
+
+# compare integers $1 and $2; ensure the difference is no more than $3
+range () {
+    $PERL -e 'if (abs(int($ARGV[0]) - int($ARGV[1])) > int($ARGV[2])) { exit(1) }' $1 $2 $3
+}
+
+#   $1=domain  $2=IP address  $3=# of IP addresses  $4=TC  $5=drop
+#	$6=NXDOMAIN  $7=SERVFAIL or other errors
+ck_result() {
+    # wait to the background mdig calls to complete.
+    wait
+    BAD=no
+    ADDRS=$(grep -E "^$2$" mdig.out-$1				2>/dev/null | wc -l)
+    # count simple truncated and truncated NXDOMAIN as TC
+    TC=$(grep -E "^TC|NXDOMAINTC$" mdig.out-$1			2>/dev/null | wc -l)
+    DROP=$(grep -E "^drop$" mdig.out-$1				2>/dev/null | wc -l)
+    # count NXDOMAIN and truncated NXDOMAIN as NXDOMAIN
+    NXDOMAIN=$(grep -E "^NXDOMAIN|NXDOMAINTC$" mdig.out-$1		2>/dev/null | wc -l)
+    SERVFAIL=$(grep -E "^SERVFAIL$" mdig.out-$1			2>/dev/null | wc -l)
+    NOERROR=$(grep -E "^NOERROR$" mdig.out-$1			2>/dev/null | wc -l)
+
+    range $ADDRS "$3" 1 ||
+    setret "$ADDRS instead of $3 '$2' responses for $1" &&
+    BAD=yes
+
+    range $TC "$4" 1 ||
+    setret "$TC instead of $4 truncation responses for $1" &&
+    BAD=yes
+
+    range $DROP "$5" 1 ||
+    setret "$DROP instead of $5 dropped responses for $1" &&
+    BAD=yes
+
+    range $NXDOMAIN "$6" 1 ||
+    setret "$NXDOMAIN instead of $6 NXDOMAIN responses for $1" &&
+    BAD=yes
+
+    range $SERVFAIL "$7" 1 ||
+    setret "$SERVFAIL instead of $7 error responses for $1" &&
+    BAD=yes
+
+    range $NOERROR "$8" 1 ||
+    setret "$NOERROR instead of $8 NOERROR responses for $1" &&
+    BAD=yes
+
+    if test -z "$BAD"; then
+	rm -f mdig.out-$1
+    fi
+}
+
+
+ckstats () {
+    LABEL="$1"; shift
+    TYPE="$1"; shift
+    EXPECTED="$1"; shift
+    C=$(cat ns2/named.stats |
+        sed -n -e "s/[	 ]*\([0-9]*\).responses $TYPE for rate limits.*/\1/p" |
+        tail -1)
+    C=$((C))
+
+    range "$C" $EXPECTED 1 ||
+    setret "wrong $LABEL $TYPE statistics of $C instead of $EXPECTED"
+}
+
+
+#########
+sec_start
+
+# Tests of referrals to "." must be done before the hints are loaded.
+burst 5 a1.tld3 +norec
+# basic rate limiting
+burst 3 a1.tld2
+# delay allows an additional response.
+sleep 1
+burst 10 a1.tld2
+# Request 30 different qnames to try a wildcard.
+burst 30 'y.x$CNT.a2.tld2'
+
+#					IP      TC      drop  NXDOMAIN SERVFAIL NOERROR
+# referrals to "."
+ck_result   a1.tld3	x		0	1	2	0	0	2
+# check 13 results including 1 second delay that allows an additional response
+ck_result   a1.tld2	192.0.2.1	3	4	6	0	0	8
+
+# Check the wildcard answers.
+# The zone origin name of the 30 requests is counted.
+ck_result 'y.x*.a2.tld2'	192.0.2.2	2	10	18	0	0	12
+
+#########
+sec_start
+
+burst 10 'x.a3.tld3'
+burst 10 'y$CNT.a3.tld3'
+burst 10 'z$CNT.a4.tld2'
+
+# 10 identical recursive responses are limited
+ck_result 'x.a3.tld3'	192.0.3.3	2	3	5	0	0	5
+
+# 10 different recursive responses are not limited
+ck_result 'y*.a3.tld3'	192.0.3.3	10	0	0	0	0	10
+
+# 10 different NXDOMAIN responses are limited based on the parent name.
+#   We count 13 responses because we count truncated NXDOMAIN responses
+#   as both truncated and NXDOMAIN.
+ck_result 'z*.a4.tld2'	x		0	3	5	5	0	0
+
+$RNDCCMD $ns2 stats
+ckstats first dropped 36
+ckstats first truncated 21
+
+
+#########
+sec_start
+
+burst 10 a5.tld2 +tcp
+burst 10 a6.tld2 -b $ns7
+burst 10 a7.tld4
+burst 2 a8.tld2 -t AAAA
+burst 2 a8.tld2 -t TXT
+burst 2 a8.tld2 -t SPF
+
+#					IP      TC      drop  NXDOMAIN SERVFAIL NOERROR
+# TCP responses are not rate limited
+ck_result a5.tld2	192.0.2.5	10	0	0	0	0	10
+
+# whitelisted client is not rate limited
+ck_result a6.tld2	192.0.2.6	10	0	0	0	0	10
+
+# Errors such as SERVFAIL are rate limited.
+ck_result a7.tld4	x		0	0	8	0	2	0
+
+# NODATA responses are counted as the same regardless of qtype.
+ck_result a8.tld2	x		0	2	2	0	0	4
+
+$RNDCCMD $ns2 stats
+ckstats second dropped 46
+ckstats second truncated 23
+
+
+#########
+sec_start
+
+#					IP      TC      drop  NXDOMAIN SERVFAIL NOERROR
+# all-per-second
+#   The qnames are all unique but the client IP address is constant.
+QNUM=101
+burst 60 'all$CNT.a9.tld2'
+
+ck_result 'a*.a9.tld2'	192.0.2.8	50	0	10	0	0	50
+
+$RNDCCMD $ns2 stats
+ckstats final dropped 56
+ckstats final truncated 23
+
+#########
+sec_start
+
+DIGOPTS="+nocookie +nosearch +time=1 +tries=1 +ignore -p ${PORT}"
+$DIG $DIGOPTS @$ns4 A a7.tld4 > /dev/null 2>&1
+$DIG $DIGOPTS @$ns4 A a7.tld4 > /dev/null 2>&1
+$DIG $DIGOPTS @$ns4 A a7.tld4 > /dev/null 2>&1
+$DIG $DIGOPTS @$ns4 A a7.tld4 > /dev/null 2>&1
+$DIG $DIGOPTS @$ns4 A a7.tld4 > /dev/null 2>&1
+$DIG $DIGOPTS @$ns4 A a7.tld4 > /dev/null 2>&1
+$DIG $DIGOPTS @$ns4 A a7.tld4 > /dev/null 2>&1
+$DIG $DIGOPTS @$ns4 A a7.tld4 > /dev/null 2>&1
+$DIG $DIGOPTS @$ns4 A a7.tld4 > /dev/null 2>&1
+$DIG $DIGOPTS @$ns4 A a7.tld4 > /dev/null 2>&1
+$DIG $DIGOPTS @$ns4 A a7.tld4 > /dev/null 2>&1
+
+# regression test for GL #2839
+DIGOPTS="+bufsize=4096 +ignore -p ${PORT}"
+$DIG $DIGOPTS @$ns4 TXT big.tld4 > /dev/null 2>&1
+
+grep "would limit" ns4/named.run >/dev/null 2>&1 ||
+setret "\"would limit\" not found in log file."
+
+$NAMED -D rrl-ns5 -gc broken.conf > broken.out 2>&1 &
+sleep 2
+grep "min-table-size 1" broken.out > /dev/null || setret "min-table-size 0 was not changed to 1"
+
+if [ -f named.pid ]; then
+    kill $(cat named.pid)
+    setret "named should not have started, but did"
+fi
+
+echo_i "exit status: $ret"
+[ $ret -eq 0 ] || exit 1