tests.sh revision 1.1.1.3
1 # Copyright (C) Internet Systems Consortium, Inc. ("ISC") 2 # 3 # This Source Code Form is subject to the terms of the Mozilla Public 4 # License, v. 2.0. If a copy of the MPL was not distributed with this 5 # file, you can obtain one at https://mozilla.org/MPL/2.0/. 6 # 7 # See the COPYRIGHT file distributed with this work for additional 8 # information regarding copyright ownership. 9 10 # test response rate limiting 11 12 SYSTEMTESTTOP=.. 13 . $SYSTEMTESTTOP/conf.sh 14 15 RNDCCMD="$RNDC -c $SYSTEMTESTTOP/common/rndc.conf -p ${CONTROLPORT} -s" 16 17 #set -x 18 19 ns1=10.53.0.1 # root, defining the others 20 ns2=10.53.0.2 # test server 21 ns3=10.53.0.3 # secondary test server 22 ns4=10.53.0.4 # log-only test server 23 ns7=10.53.0.7 # whitelisted client 24 25 USAGE="$0: [-x]" 26 while getopts "x" c; do 27 case $c in 28 x) set -x;; 29 *) echo "$USAGE" 1>&2; exit 1;; 30 esac 31 done 32 shift `expr $OPTIND - 1 || true` 33 if test "$#" -ne 0; then 34 echo "$USAGE" 1>&2 35 exit 1 36 fi 37 # really quit on control-C 38 trap 'exit 1' 1 2 15 39 40 41 ret=0 42 setret () { 43 ret=1 44 echo_i "$*" 45 } 46 47 48 # Wait until soon after the start of a second to make results consistent. 49 # The start of a second credits a rate limit. 50 # This would be far easier in C or by assuming a modern version of perl. 51 sec_start () { 52 START=`date` 53 while true; do 54 NOW=`date` 55 if test "$START" != "$NOW"; then 56 return 57 fi 58 $PERL -e 'select(undef, undef, undef, 0.05)' || true 59 done 60 } 61 62 63 # turn off ${HOME}/.digrc 64 HOME=/dev/null; export HOME 65 66 # $1=number of tests $2=target domain $3=dig options 67 QNUM=1 68 burst () { 69 BURST_LIMIT=$1; shift 70 BURST_DOM_BASE="$1"; shift 71 72 XCNT=$CNT 73 CNT='XXX' 74 eval FILENAME="mdig.out-$BURST_DOM_BASE" 75 CNT=$XCNT 76 77 DOMS="" 78 CNTS=`$PERL -e 'for ( $i = 0; $i < '$BURST_LIMIT'; $i++) { printf "%03d\n", '$QNUM' + $i; }'` 79 for CNT in $CNTS 80 do 81 eval BURST_DOM="$BURST_DOM_BASE" 82 DOMS="$DOMS $BURST_DOM" 83 done 84 ARGS="+burst +nocookie +continue +time=1 +tries=1 -p ${PORT} $* @$ns2 $DOMS" 85 $MDIG $ARGS 2>&1 | \ 86 tr -d '\r' | \ 87 tee -a full-$FILENAME | \ 88 sed -n -e '/^;; AUTHORITY/,/^$/d' \ 89 -e '/^;; ADDITIONAL/,/^$/d' \ 90 -e 's/^[^;].* \([^ ]\{1,\}\)$/\1/p' \ 91 -e 's/;; flags.* tc .*/TC/p' \ 92 -e 's/;; .* status: NXDOMAIN.*/NXDOMAIN/p' \ 93 -e 's/;; .* status: NOERROR.*/NOERROR/p' \ 94 -e 's/;; .* status: SERVFAIL.*/SERVFAIL/p' \ 95 -e 's/response failed with timed out.*/drop/p' \ 96 -e 's/;; communications error to.*/drop/p' >> $FILENAME & 97 QNUM=`expr $QNUM + $BURST_LIMIT` 98 } 99 100 # compare integers $1 and $2; ensure the difference is no more than $3 101 range () { 102 $PERL -e 'if (abs(int($ARGV[0]) - int($ARGV[1])) > int($ARGV[2])) { exit(1) }' $1 $2 $3 103 } 104 105 # $1=domain $2=IP address $3=# of IP addresses $4=TC $5=drop 106 # $6=NXDOMAIN $7=SERVFAIL or other errors 107 ck_result() { 108 # wait to the background mdig calls to complete. 109 wait 110 BAD=no 111 ADDRS=`egrep "^$2$" mdig.out-$1 2>/dev/null | wc -l` 112 # count simple truncated and truncated NXDOMAIN as TC 113 TC=`egrep "^TC|NXDOMAINTC$" mdig.out-$1 2>/dev/null | wc -l` 114 DROP=`egrep "^drop$" mdig.out-$1 2>/dev/null | wc -l` 115 # count NXDOMAIN and truncated NXDOMAIN as NXDOMAIN 116 NXDOMAIN=`egrep "^NXDOMAIN|NXDOMAINTC$" mdig.out-$1 2>/dev/null | wc -l` 117 SERVFAIL=`egrep "^SERVFAIL$" mdig.out-$1 2>/dev/null | wc -l` 118 NOERROR=`egrep "^NOERROR$" mdig.out-$1 2>/dev/null | wc -l` 119 120 range $ADDRS "$3" 1 || 121 setret "$ADDRS instead of $3 '$2' responses for $1" && 122 BAD=yes 123 124 range $TC "$4" 1 || 125 setret "$TC instead of $4 truncation responses for $1" && 126 BAD=yes 127 128 range $DROP "$5" 1 || 129 setret "$DROP instead of $5 dropped responses for $1" && 130 BAD=yes 131 132 range $NXDOMAIN "$6" 1 || 133 setret "$NXDOMAIN instead of $6 NXDOMAIN responses for $1" && 134 BAD=yes 135 136 range $SERVFAIL "$7" 1 || 137 setret "$SERVFAIL instead of $7 error responses for $1" && 138 BAD=yes 139 140 range $NOERROR "$8" 1 || 141 setret "$NOERROR instead of $8 NOERROR responses for $1" && 142 BAD=yes 143 144 if test -z "$BAD"; then 145 rm -f mdig.out-$1 146 fi 147 } 148 149 150 ckstats () { 151 LABEL="$1"; shift 152 TYPE="$1"; shift 153 EXPECTED="$1"; shift 154 C=`tr -d '\r' < ns2/named.stats | 155 sed -n -e "s/[ ]*\([0-9]*\).responses $TYPE for rate limits.*/\1/p" | 156 tail -1` 157 C=`expr 0$C + 0` 158 159 range "$C" $EXPECTED 1 || 160 setret "wrong $LABEL $TYPE statistics of $C instead of $EXPECTED" 161 } 162 163 164 ######### 165 sec_start 166 167 # Tests of referrals to "." must be done before the hints are loaded 168 # or with "additional-from-cache no" 169 burst 5 a1.tld3 +norec 170 # basic rate limiting 171 burst 3 a1.tld2 172 # delay allows an additional response. 173 sleep 1 174 burst 10 a1.tld2 175 # Request 30 different qnames to try a wildcard. 176 burst 30 'x$CNT.a2.tld2' 177 # These should be counted and limited but are not. See RT33138. 178 burst 10 'y.x$CNT.a2.tld2' 179 180 # IP TC drop NXDOMAIN SERVFAIL NOERROR 181 # referrals to "." 182 ck_result a1.tld3 x 0 1 2 0 0 2 183 # check 13 results including 1 second delay that allows an additional response 184 ck_result a1.tld2 192.0.2.1 3 4 6 0 0 8 185 186 # Check the wild card answers. 187 # The parent name of the 30 requests is counted. 188 ck_result 'x*.a2.tld2' 192.0.2.2 2 10 18 0 0 12 189 190 # These should be limited but are not. See RT33138. 191 ck_result 'y.x*.a2.tld2' 192.0.2.2 10 0 0 0 0 10 192 193 ######### 194 sec_start 195 196 burst 10 'x.a3.tld3' 197 burst 10 'y$CNT.a3.tld3' 198 burst 10 'z$CNT.a4.tld2' 199 200 # 10 identical recursive responses are limited 201 ck_result 'x.a3.tld3' 192.0.3.3 2 3 5 0 0 5 202 203 # 10 different recursive responses are not limited 204 ck_result 'y*.a3.tld3' 192.0.3.3 10 0 0 0 0 10 205 206 # 10 different NXDOMAIN responses are limited based on the parent name. 207 # We count 13 responses because we count truncated NXDOMAIN responses 208 # as both truncated and NXDOMAIN. 209 ck_result 'z*.a4.tld2' x 0 3 5 5 0 0 210 211 $RNDCCMD $ns2 stats 212 ckstats first dropped 36 213 ckstats first truncated 21 214 215 216 ######### 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 $ns2 stats 240 ckstats second dropped 46 241 ckstats second truncated 23 242 243 244 ######### 245 sec_start 246 247 # IP TC drop NXDOMAIN SERVFAIL NOERROR 248 # all-per-second 249 # The qnames are all unique but the client IP address is constant. 250 QNUM=101 251 burst 60 'all$CNT.a9.tld2' 252 253 ck_result 'a*.a9.tld2' 192.0.2.8 50 0 10 0 0 50 254 255 $RNDCCMD $ns2 stats 256 ckstats final dropped 56 257 ckstats final truncated 23 258 259 ######### 260 sec_start 261 262 DIGOPTS="+nocookie +nosearch +time=1 +tries=1 +ignore -p ${PORT}" 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 $DIG $DIGOPTS @$ns4 A a7.tld4 > /dev/null 2>&1 274 275 grep "would limit" ns4/named.run >/dev/null 2>&1 || 276 setret "\"would limit\" not found in log file." 277 278 $NAMED -D rrl-ns5 -gc broken.conf > broken.out 2>&1 & 279 sleep 2 280 grep "min-table-size 1" broken.out > /dev/null || setret "min-table-size 0 was not changed to 1" 281 282 if [ -f named.pid ]; then 283 $KILL `cat named.pid` 284 setret "named should not have started, but did" 285 fi 286 287 echo_i "exit status: $ret" 288 [ $ret -eq 0 ] || exit 1 289
Indexes created Sun Mar 22 00:23:16 UTC 2026