tests.sh revision 1.1.1.2.4.1
1 #!/bin/sh 2 3 # Copyright (C) Internet Systems Consortium, Inc. ("ISC") 4 # 5 # SPDX-License-Identifier: MPL-2.0 6 # 7 # This Source Code Form is subject to the terms of the Mozilla Public 8 # License, v. 2.0. If a copy of the MPL was not distributed with this 9 # file, you can obtain one at https://mozilla.org/MPL/2.0/. 10 # 11 # See the COPYRIGHT file distributed with this work for additional 12 # information regarding copyright ownership. 13 14 set -e 15 16 # test response rate limiting 17 18 . ../conf.sh 19 20 RNDCCMD="$RNDC -c ../_common/rndc.conf -p ${CONTROLPORT} -s" 21 22 #set -x 23 24 ns1=10.53.0.1 # root, defining the others 25 ns2=10.53.0.2 # test server 26 ns3=10.53.0.3 # secondary test server 27 ns4=10.53.0.4 # log-only test server 28 ns7=10.53.0.7 # whitelisted client 29 30 USAGE="$0: [-x]" 31 while getopts "x" c; do 32 case $c in 33 x) set -x ;; 34 *) 35 echo "$USAGE" 1>&2 36 exit 1 37 ;; 38 esac 39 done 40 shift $((OPTIND - 1)) 41 if test "$#" -ne 0; then 42 echo "$USAGE" 1>&2 43 exit 1 44 fi 45 # really quit on control-C 46 trap 'exit 1' 1 2 15 47 48 ret=0 49 setret() { 50 ret=1 51 echo_i "$*" 52 } 53 54 # Wait until soon after the start of a second to make results consistent. 55 # The start of a second credits a rate limit. 56 # This would be far easier in C or by assuming a modern version of perl. 57 sec_start() { 58 START=$(date) 59 while true; do 60 NOW=$(date) 61 if test "$START" != "$NOW"; then 62 return 63 fi 64 $PERL -e 'select(undef, undef, undef, 0.05)' || true 65 done 66 } 67 68 # turn off ${HOME}/.digrc 69 HOME=/dev/null 70 export HOME 71 72 # $1=number of tests $2=target domain $3=dig options 73 QNUM=1 74 burst() { 75 BURST_LIMIT=$1 76 shift 77 BURST_DOM_BASE="$1" 78 shift 79 80 XCNT=$CNT 81 CNT='XXX' 82 eval FILENAME="mdig.out-$BURST_DOM_BASE" 83 CNT=$XCNT 84 85 DOMS="" 86 CNTS=$($PERL -e 'for ( $i = 0; $i < '$BURST_LIMIT'; $i++) { printf "%03d\n", '$QNUM' + $i; }') 87 for CNT in $CNTS; do 88 eval BURST_DOM="$BURST_DOM_BASE" 89 DOMS="$DOMS $BURST_DOM" 90 done 91 ARGS="+burst +nocookie +continue +time=1 +tries=1 -p ${PORT} $* @$ns2 $DOMS" 92 $MDIG $ARGS 2>&1 \ 93 | tee -a full-$FILENAME \ 94 | sed -n -e '/^;; AUTHORITY/,/^$/d' \ 95 -e '/^;; ADDITIONAL/,/^$/d' \ 96 -e 's/^[^;].* \([^ ]\{1,\}\)$/\1/p' \ 97 -e 's/;; flags.* tc .*/TC/p' \ 98 -e 's/;; .* status: NXDOMAIN.*/NXDOMAIN/p' \ 99 -e 's/;; .* status: NOERROR.*/NOERROR/p' \ 100 -e 's/;; .* status: SERVFAIL.*/SERVFAIL/p' \ 101 -e 's/response failed with timed out.*/drop/p' \ 102 -e 's/;; communications error to.*/drop/p' >>$FILENAME & 103 QNUM=$((QNUM + BURST_LIMIT)) 104 } 105 106 # compare integers $1 and $2; ensure the difference is no more than $3 107 range() { 108 $PERL -e 'if (abs(int($ARGV[0]) - int($ARGV[1])) > int($ARGV[2])) { exit(1) }' $1 $2 $3 109 } 110 111 # $1=domain $2=IP address $3=# of IP addresses $4=TC $5=drop 112 # $6=NXDOMAIN $7=SERVFAIL or other errors 113 ck_result() { 114 # wait to the background mdig calls to complete. 115 wait 116 BAD=no 117 ADDRS=$(grep -E "^$2$" mdig.out-$1 2>/dev/null | wc -l) 118 # count simple truncated and truncated NXDOMAIN as TC 119 TC=$(grep -E "^TC|NXDOMAINTC$" mdig.out-$1 2>/dev/null | wc -l) 120 DROP=$(grep -E "^drop$" mdig.out-$1 2>/dev/null | wc -l) 121 # count NXDOMAIN and truncated NXDOMAIN as NXDOMAIN 122 NXDOMAIN=$(grep -E "^NXDOMAIN|NXDOMAINTC$" mdig.out-$1 2>/dev/null | wc -l) 123 SERVFAIL=$(grep -E "^SERVFAIL$" mdig.out-$1 2>/dev/null | wc -l) 124 NOERROR=$(grep -E "^NOERROR$" mdig.out-$1 2>/dev/null | wc -l) 125 126 range $ADDRS "$3" 1 \ 127 || setret "$ADDRS instead of $3 '$2' responses for $1" \ 128 && BAD=yes 129 130 range $TC "$4" 1 \ 131 || setret "$TC instead of $4 truncation responses for $1" \ 132 && BAD=yes 133 134 range $DROP "$5" 1 \ 135 || setret "$DROP instead of $5 dropped responses for $1" \ 136 && BAD=yes 137 138 range $NXDOMAIN "$6" 1 \ 139 || setret "$NXDOMAIN instead of $6 NXDOMAIN responses for $1" \ 140 && BAD=yes 141 142 range $SERVFAIL "$7" 1 \ 143 || setret "$SERVFAIL instead of $7 error responses for $1" \ 144 && BAD=yes 145 146 range $NOERROR "$8" 1 \ 147 || setret "$NOERROR instead of $8 NOERROR responses for $1" \ 148 && BAD=yes 149 150 if test -z "$BAD"; then 151 rm -f mdig.out-$1 152 fi 153 } 154 155 ckstats() { 156 LABEL="$1" 157 shift 158 TYPE="$1" 159 shift 160 EXPECTED="$1" 161 shift 162 C=$(cat ns2/named.stats \ 163 | sed -n -e "s/[ ]*\([0-9]*\).responses $TYPE for rate limits.*/\1/p" \ 164 | tail -1) 165 C=$((C)) 166 167 range "$C" $EXPECTED 1 \ 168 || setret "wrong $LABEL $TYPE statistics of $C instead of $EXPECTED" 169 } 170 171 ######### 172 sec_start 173 174 # Tests of referrals to "." must be done before the hints are loaded. 175 burst 5 a1.tld3 +norec 176 # basic rate limiting 177 burst 3 a1.tld2 178 # delay allows an additional response. 179 sleep 1 180 burst 10 a1.tld2 181 # Request 30 different qnames to try a wildcard. 182 burst 30 'y.x$CNT.a2.tld2' 183 184 # IP TC drop NXDOMAIN SERVFAIL NOERROR 185 # referrals to "." 186 ck_result a1.tld3 x 0 1 2 0 0 2 187 # check 13 results including 1 second delay that allows an additional response 188 ck_result a1.tld2 192.0.2.1 3 4 6 0 0 8 189 190 # Check the wildcard answers. 191 # The zone origin name of the 30 requests is counted. 192 ck_result 'y.x*.a2.tld2' 192.0.2.2 2 10 18 0 0 12 193 194 ######### 195 sec_start 196 197 burst 10 'x.a3.tld3' 198 burst 10 'y$CNT.a3.tld3' 199 burst 10 'z$CNT.a4.tld2' 200 201 # 10 identical recursive responses are limited 202 ck_result 'x.a3.tld3' 192.0.3.3 2 3 5 0 0 5 203 204 # 10 different recursive responses are not limited 205 ck_result 'y*.a3.tld3' 192.0.3.3 10 0 0 0 0 10 206 207 # 10 different NXDOMAIN responses are limited based on the parent name. 208 # We count 13 responses because we count truncated NXDOMAIN responses 209 # as both truncated and NXDOMAIN. 210 ck_result 'z*.a4.tld2' x 0 3 5 5 0 0 211 212 $RNDCCMD $ns2 stats 213 ckstats first dropped 36 214 ckstats first truncated 21 215 216 ######### 217 sec_start 218 219 burst 10 a5.tld2 +tcp 220 burst 10 a6.tld2 -b $ns7 221 burst 10 a7.tld4 222 burst 2 a8.tld2 -t AAAA 223 burst 2 a8.tld2 -t TXT 224 burst 2 a8.tld2 -t SPF 225 226 # IP TC drop NXDOMAIN SERVFAIL NOERROR 227 # TCP responses are not rate limited 228 ck_result a5.tld2 192.0.2.5 10 0 0 0 0 10 229 230 # whitelisted client is not rate limited 231 ck_result a6.tld2 192.0.2.6 10 0 0 0 0 10 232 233 # Errors such as SERVFAIL are rate limited. 234 ck_result a7.tld4 x 0 0 8 0 2 0 235 236 # NODATA responses are counted as the same regardless of qtype. 237 ck_result a8.tld2 x 0 2 2 0 0 4 238 239 $RNDCCMD $ns2 stats 240 ckstats second dropped 46 241 ckstats second truncated 23 242 243 ######### 244 sec_start 245 246 # IP TC drop NXDOMAIN SERVFAIL NOERROR 247 # all-per-second 248 # The qnames are all unique but the client IP address is constant. 249 QNUM=101 250 burst 60 'all$CNT.a9.tld2' 251 252 ck_result 'a*.a9.tld2' 192.0.2.8 50 0 10 0 0 50 253 254 $RNDCCMD $ns2 stats 255 ckstats final dropped 56 256 ckstats final truncated 23 257 258 ######### 259 sec_start 260 261 DIGOPTS="+nocookie +nosearch +time=1 +tries=1 +ignore -p ${PORT}" 262 $DIG $DIGOPTS @$ns4 A a7.tld4 >/dev/null 2>&1 263 $DIG $DIGOPTS @$ns4 A a7.tld4 >/dev/null 2>&1 264 $DIG $DIGOPTS @$ns4 A a7.tld4 >/dev/null 2>&1 265 $DIG $DIGOPTS @$ns4 A a7.tld4 >/dev/null 2>&1 266 $DIG $DIGOPTS @$ns4 A a7.tld4 >/dev/null 2>&1 267 $DIG $DIGOPTS @$ns4 A a7.tld4 >/dev/null 2>&1 268 $DIG $DIGOPTS @$ns4 A a7.tld4 >/dev/null 2>&1 269 $DIG $DIGOPTS @$ns4 A a7.tld4 >/dev/null 2>&1 270 $DIG $DIGOPTS @$ns4 A a7.tld4 >/dev/null 2>&1 271 $DIG $DIGOPTS @$ns4 A a7.tld4 >/dev/null 2>&1 272 $DIG $DIGOPTS @$ns4 A a7.tld4 >/dev/null 2>&1 273 274 # regression test for GL #2839 275 DIGOPTS="+bufsize=4096 +ignore -p ${PORT}" 276 $DIG $DIGOPTS @$ns4 TXT big.tld4 >/dev/null 2>&1 277 278 grep "would limit" ns4/named.run >/dev/null 2>&1 \ 279 || setret "\"would limit\" not found in log file." 280 281 $NAMED -D rrl-ns5 -gc broken.conf >broken.out 2>&1 & 282 sleep 2 283 grep "min-table-size 1" broken.out >/dev/null || setret "min-table-size 0 was not changed to 1" 284 285 if [ -f named.pid ]; then 286 kill $(cat named.pid) 287 setret "named should not have started, but did" 288 fi 289 290 echo_i "exit status: $ret" 291 [ $ret -eq 0 ] || exit 1 292
Indexes created Thu Mar 19 00:23:35 UTC 2026