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 14set -e 15 16. ../conf.sh 17 18DIGOPTS="-p ${PORT} +tries=1 +time=2" 19 20# Check whether the SOA record for the name provided in $1 can be resolved by 21# ns1. Return 0 if resolution succeeds as expected; return 1 otherwise. 22resolution_succeeds() { 23 _ret=0 24 $DIG $DIGOPTS +tcp +tries=3 +time=5 @10.53.0.1 ${1} SOA >dig.out.test$n || _ret=1 25 grep "status: NOERROR" dig.out.test$n >/dev/null || _ret=1 26 return $_ret 27} 28 29# Check whether the SOA record for the name provided in $1 can be resolved by 30# ns1. Return 0 if resolution fails as expected; return 1 otherwise. Note that 31# both a SERVFAIL response and timing out mean resolution failed, so the exit 32# code of dig does not influence the result (the exit code for a SERVFAIL 33# response is 0 while the exit code for not getting a response at all is not 0). 34resolution_fails() { 35 _servfail=0 36 _timeout=0 37 $DIG $DIGOPTS +tcp +time=5 @10.53.0.1 ${1} TXT >dig.out.test$n || true 38 grep -F "status: SERVFAIL" dig.out.test$n >/dev/null && _servfail=1 39 grep -F "timed out" dig.out.test$n >/dev/null && _timeout=1 40 if [ $_servfail -eq 1 ] || [ $_timeout -eq 1 ]; then 41 return 0 42 else 43 return 1 44 fi 45} 46 47status=0 48n=0 49 50n=$((n + 1)) 51echo_i "checking formerr edns server setup ($n)" 52ret=0 53$DIG $DIGOPTS +edns @10.53.0.8 ednsformerr soa >dig.out.1.test$n || ret=1 54grep "status: FORMERR" dig.out.1.test$n >/dev/null || ret=1 55grep "EDNS: version:" dig.out.1.test$n >/dev/null && ret=1 56$DIG $DIGOPTS +noedns @10.53.0.8 ednsformerr soa >dig.out.2.test$n || ret=1 57grep "status: NOERROR" dig.out.2.test$n >/dev/null || ret=1 58grep "EDNS: version:" dig.out.2.test$n >/dev/null && ret=1 59if [ $ret != 0 ]; then echo_i "failed"; fi 60status=$((status + ret)) 61 62n=$((n + 1)) 63echo_i "checking recursive lookup to formerr edns server succeeds ($n)" 64ret=0 65resolution_succeeds ednsformerr. || ret=1 66if [ $ret != 0 ]; then echo_i "failed"; fi 67status=$((status + ret)) 68 69n=$((n + 1)) 70echo_i "checking notimp edns server setup ($n)" 71ret=0 72$DIG $DIGOPTS +edns @10.53.0.9 ednsnotimp soa >dig.out.1.test$n || ret=1 73grep "status: NOTIMP" dig.out.1.test$n >/dev/null || ret=1 74grep "EDNS: version:" dig.out.1.test$n >/dev/null && ret=1 75$DIG $DIGOPTS +noedns @10.53.0.9 ednsnotimp soa >dig.out.2.test$n || ret=1 76grep "status: NOERROR" dig.out.2.test$n >/dev/null || ret=1 77grep "EDNS: version:" dig.out.2.test$n >/dev/null && ret=1 78if [ $ret != 0 ]; then echo_i "failed"; fi 79status=$((status + ret)) 80 81n=$((n + 1)) 82echo_i "checking recursive lookup to notimp edns server fails ($n)" 83ret=0 84resolution_fails ednsnotimp. || ret=1 85if [ $ret != 0 ]; then echo_i "failed"; fi 86status=$((status + ret)) 87 88n=$((n + 1)) 89echo_i "checking refused edns server setup ($n)" 90ret=0 91$DIG $DIGOPTS +edns @10.53.0.10 ednsrefused soa >dig.out.1.test$n || ret=1 92grep "status: REFUSED" dig.out.1.test$n >/dev/null || ret=1 93grep "EDNS: version:" dig.out.1.test$n >/dev/null && ret=1 94$DIG $DIGOPTS +noedns @10.53.0.10 ednsrefused soa >dig.out.2.test$n || ret=1 95grep "status: NOERROR" dig.out.2.test$n >/dev/null || ret=1 96grep "EDNS: version:" dig.out.2.test$n >/dev/null && ret=1 97if [ $ret != 0 ]; then echo_i "failed"; fi 98status=$((status + ret)) 99 100n=$((n + 1)) 101echo_i "checking recursive lookup to refused edns server fails ($n)" 102ret=0 103resolution_fails ednsrefused. || ret=1 104if [ $ret != 0 ]; then echo_i "failed"; fi 105status=$((status + ret)) 106 107n=$((n + 1)) 108echo_i "checking drop edns server setup ($n)" 109ret=0 110$DIG $DIGOPTS +edns @10.53.0.2 dropedns soa >dig.out.1.test$n && ret=1 111grep "timed out" dig.out.1.test$n >/dev/null || ret=1 112grep ";; no servers could be reached" dig.out.1.test$n >/dev/null || ret=1 113$DIG $DIGOPTS +noedns @10.53.0.2 dropedns soa >dig.out.2.test$n || ret=1 114grep "status: NOERROR" dig.out.2.test$n >/dev/null || ret=1 115grep "EDNS: version:" dig.out.2.test$n >/dev/null && ret=1 116$DIG $DIGOPTS +noedns +tcp @10.53.0.2 dropedns soa >dig.out.3.test$n || ret=1 117grep "status: NOERROR" dig.out.3.test$n >/dev/null || ret=1 118grep "EDNS: version:" dig.out.3.test$n >/dev/null && ret=1 119$DIG $DIGOPTS +edns +tcp @10.53.0.2 dropedns soa >dig.out.4.test$n && ret=1 120grep "timed out" dig.out.4.test$n >/dev/null || ret=1 121grep ";; no servers could be reached" dig.out.4.test$n >/dev/null || ret=1 122if [ $ret != 0 ]; then echo_i "failed"; fi 123status=$((status + ret)) 124 125n=$((n + 1)) 126echo_i "checking recursive lookup to drop edns server fails ($n)" 127ret=0 128resolution_fails dropedns. || ret=1 129if [ $ret != 0 ]; then echo_i "failed"; fi 130status=$((status + ret)) 131 132n=$((n + 1)) 133echo_i "checking drop edns + no tcp server setup ($n)" 134ret=0 135$DIG $DIGOPTS +edns @10.53.0.3 dropedns-notcp soa >dig.out.1.test$n && ret=1 136grep "timed out" dig.out.1.test$n >/dev/null || ret=1 137grep ";; no servers could be reached" dig.out.1.test$n >/dev/null || ret=1 138$DIG $DIGOPTS +noedns +tcp @10.53.0.3 dropedns-notcp soa >dig.out.2.test$n && ret=1 139grep "connection refused" dig.out.2.test$n >/dev/null || ret=1 140$DIG $DIGOPTS +noedns @10.53.0.3 dropedns-notcp soa >dig.out.3.test$n || ret=1 141grep "status: NOERROR" dig.out.3.test$n >/dev/null || ret=1 142grep "EDNS: version:" dig.out.3.test$n >/dev/null && ret=1 143if [ $ret != 0 ]; then echo_i "failed"; fi 144status=$((status + ret)) 145 146n=$((n + 1)) 147echo_i "checking recursive lookup to drop edns + no tcp server fails ($n)" 148ret=0 149resolution_fails dropedns-notcp. || ret=1 150if [ $ret != 0 ]; then echo_i "failed"; fi 151status=$((status + ret)) 152 153n=$((n + 1)) 154echo_i "checking plain dns server setup ($n)" 155ret=0 156$DIG $DIGOPTS +edns @10.53.0.4 plain soa >dig.out.1.test$n || ret=1 157grep "status: NOERROR" dig.out.1.test$n >/dev/null || ret=1 158grep "EDNS: version:" dig.out.1.test$n >/dev/null && ret=1 159$DIG $DIGOPTS +edns +tcp @10.53.0.4 plain soa >dig.out.2.test$n || ret=1 160grep "status: NOERROR" dig.out.2.test$n >/dev/null || ret=1 161grep "EDNS: version:" dig.out.2.test$n >/dev/null && ret=1 162if [ $ret != 0 ]; then echo_i "failed"; fi 163status=$((status + ret)) 164 165n=$((n + 1)) 166echo_i "checking recursive lookup to plain dns server succeeds ($n)" 167ret=0 168resolution_succeeds plain. || ret=1 169if [ $ret != 0 ]; then echo_i "failed"; fi 170status=$((status + ret)) 171 172n=$((n + 1)) 173echo_i "checking plain dns + no tcp server setup ($n)" 174ret=0 175$DIG $DIGOPTS +edns @10.53.0.5 plain-notcp soa >dig.out.1.test$n || ret=1 176grep "status: NOERROR" dig.out.1.test$n >/dev/null || ret=1 177grep "EDNS: version:" dig.out.1.test$n >/dev/null && ret=1 178$DIG $DIGOPTS +edns +tcp @10.53.0.5 plain-notcp soa >dig.out.2.test$n && ret=1 179grep "connection refused" dig.out.2.test$n >/dev/null || ret=1 180if [ $ret != 0 ]; then echo_i "failed"; fi 181status=$((status + ret)) 182 183n=$((n + 1)) 184echo_i "checking recursive lookup to plain dns + no tcp server succeeds ($n)" 185ret=0 186resolution_succeeds plain-notcp. || ret=1 187if [ $ret != 0 ]; then echo_i "failed"; fi 188status=$((status + ret)) 189n=$((n + 1)) 190 191echo_i "checking edns 512 server setup ($n)" 192ret=0 193$DIG $DIGOPTS +edns @10.53.0.6 edns512 txt >dig.out.1.test$n || ret=1 194grep "status: NOERROR" dig.out.1.test$n >/dev/null || ret=1 195grep "EDNS: version:" dig.out.1.test$n >/dev/null || ret=1 196$DIG $DIGOPTS +edns +tcp @10.53.0.6 edns512 txt >dig.out.2.test$n || ret=1 197grep "status: NOERROR" dig.out.2.test$n >/dev/null || ret=1 198grep "EDNS: version:" dig.out.2.test$n >/dev/null || ret=1 199$DIG $DIGOPTS +edns +dnssec @10.53.0.6 edns512 txt >dig.out.3.test$n && ret=1 200grep "timed out" dig.out.3.test$n >/dev/null || ret=1 201grep ";; no servers could be reached" dig.out.3.test$n >/dev/null || ret=1 202$DIG $DIGOPTS +edns +dnssec +bufsize=512 +ignore @10.53.0.6 edns512 soa >dig.out.4.test$n || ret=1 203grep "status: NOERROR" dig.out.4.test$n >/dev/null || ret=1 204grep "EDNS: version:" dig.out.4.test$n >/dev/null || ret=1 205grep "flags:.* tc[ ;]" dig.out.4.test$n >/dev/null || ret=1 206if [ $ret != 0 ]; then echo_i "failed"; fi 207status=$((status + ret)) 208 209n=$((n + 1)) 210echo_i "checking recursive lookup to edns 512 server succeeds ($n)" 211ret=0 212retry_quiet 3 resolution_succeeds edns512. || ret=1 213if [ $ret != 0 ]; then echo_i "failed"; fi 214status=$((status + ret)) 215 216n=$((n + 1)) 217echo_i "checking edns 512 + no tcp server setup ($n)" 218ret=0 219$DIG $DIGOPTS +edns @10.53.0.7 edns512-notcp soa >dig.out.1.test$n || ret=1 220grep "status: NOERROR" dig.out.1.test$n >/dev/null || ret=1 221grep "EDNS: version:" dig.out.1.test$n >/dev/null || ret=1 222$DIG $DIGOPTS +edns +tcp @10.53.0.7 edns512-notcp soa >dig.out.2.test$n && ret=1 223grep "connection refused" dig.out.2.test$n >/dev/null || ret=1 224$DIG $DIGOPTS +edns +dnssec @10.53.0.7 edns512-notcp soa >dig.out.3.test$n && ret=1 225grep "timed out" dig.out.3.test$n >/dev/null || ret=1 226grep ";; no servers could be reached" dig.out.3.test$n >/dev/null || ret=1 227$DIG $DIGOPTS +edns +dnssec +bufsize=512 +ignore @10.53.0.7 edns512-notcp soa >dig.out.4.test$n || ret=1 228grep "status: NOERROR" dig.out.4.test$n >/dev/null || ret=1 229grep "EDNS: version:" dig.out.4.test$n >/dev/null || ret=1 230grep "flags:.* tc[ ;]" dig.out.4.test$n >/dev/null || ret=1 231if [ $ret != 0 ]; then echo_i "failed"; fi 232status=$((status + ret)) 233 234n=$((n + 1)) 235echo_i "checking recursive lookup to edns 512 + no tcp server fails ($n)" 236ret=0 237resolution_fails edns512-notcp. || ret=1 238if [ $ret != 0 ]; then echo_i "failed"; fi 239status=$((status + ret)) 240 241n=$((n + 1)) 242echo_i "checking recursive lookup to edns 512 + no tcp server does not cause query loops ($n)" 243ret=0 244sent=$(grep -c -F "sending packet to 10.53.0.7" ns1/named.run) 245if [ $sent -ge 10 ]; then 246 echo_i "ns1 sent $sent queries to ns7, expected less than 10" 247 ret=1 248fi 249if [ $ret != 0 ]; then echo_i "failed"; fi 250status=$((status + ret)) 251 252stop_server --use-rndc --port ${CONTROLPORT} ns1 253copy_setports ns1/named2.conf.in ns1/named.conf 254start_server --noclean --restart --port ${PORT} ns1 255 256n=$((n + 1)) 257echo_i "checking recursive lookup to edns 512 + no tcp + trust anchor fails ($n)" 258# retry loop in case the server restart above causes transient failure 259for try in 0 1 2 3 4 5 6 7 8 9; do 260 ret=0 261 resolution_fails edns512-notcp. || ret=1 262 [ "$ret" -eq 0 ] && break 263 sleep 1 264done 265if [ $ret != 0 ]; then echo_i "failed"; fi 266status=$((status + ret)) 267 268echo_i "exit status: $status" 269[ $status -eq 0 ] || exit 1 270