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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 07:24:22 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 07:24:22 +0000 |
commit | 45d6379135504814ab723b57f0eb8be23393a51d (patch) | |
tree | d4f2ec4acca824a8446387a758b0ce4238a4dffa /bin/tests/system/forward/tests.sh | |
parent | Initial commit. (diff) | |
download | bind9-upstream/1%9.16.44.tar.xz bind9-upstream/1%9.16.44.zip |
Adding upstream version 1:9.16.44.upstream/1%9.16.44upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | bin/tests/system/forward/tests.sh | 383 |
1 files changed, 383 insertions, 0 deletions
diff --git a/bin/tests/system/forward/tests.sh b/bin/tests/system/forward/tests.sh new file mode 100644 index 0000000..4b3a1ab --- /dev/null +++ b/bin/tests/system/forward/tests.sh @@ -0,0 +1,383 @@ +#!/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. + +#shellcheck source=conf.sh +SYSTEMTESTTOP=.. +. "$SYSTEMTESTTOP/conf.sh" + +dig_with_opts() ( + "$DIG" -p "$PORT" "$@" +) + +sendcmd() ( + "$PERL" ../send.pl 10.53.0.6 "$EXTRAPORT1" +) + +rndccmd() { + "$RNDC" -c ../common/rndc.conf -p "$CONTROLPORT" -s "$@" +} + +root=10.53.0.1 +hidden=10.53.0.2 +f1=10.53.0.3 +f2=10.53.0.4 + +status=0 +n=0 + +n=$((n+1)) +echo_i "checking that a forward zone overrides global forwarders ($n)" +ret=0 +dig_with_opts +noadd +noauth txt.example1. txt @$hidden > dig.out.$n.hidden || ret=1 +dig_with_opts +noadd +noauth txt.example1. txt @$f1 > dig.out.$n.f1 || ret=1 +digcomp dig.out.$n.hidden dig.out.$n.f1 || ret=1 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +n=$((n+1)) +echo_i "checking that a forward first zone no forwarders recurses ($n)" +ret=0 +dig_with_opts +noadd +noauth txt.example2. txt @$root > dig.out.$n.root || ret=1 +dig_with_opts +noadd +noauth txt.example2. txt @$f1 > dig.out.$n.f1 || ret=1 +digcomp dig.out.$n.root dig.out.$n.f1 || ret=1 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +n=$((n+1)) +echo_i "checking that a forward only zone no forwarders fails ($n)" +ret=0 +dig_with_opts +noadd +noauth txt.example2. txt @$root > dig.out.$n.root || ret=1 +dig_with_opts +noadd +noauth txt.example2. txt @$f1 > dig.out.$n.f1 || ret=1 +digcomp dig.out.$n.root dig.out.$n.f1 || ret=1 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +n=$((n+1)) +echo_i "checking that global forwarders work ($n)" +ret=0 +dig_with_opts +noadd +noauth txt.example4. txt @$hidden > dig.out.$n.hidden || ret=1 +dig_with_opts +noadd +noauth txt.example4. txt @$f1 > dig.out.$n.f1 || ret=1 +digcomp dig.out.$n.hidden dig.out.$n.f1 || ret=1 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +n=$((n+1)) +echo_i "checking that a forward zone works ($n)" +ret=0 +dig_with_opts +noadd +noauth txt.example1. txt @$hidden > dig.out.$n.hidden || ret=1 +dig_with_opts +noadd +noauth txt.example1. txt @$f2 > dig.out.$n.f2 || ret=1 +digcomp dig.out.$n.hidden dig.out.$n.f2 || ret=1 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +n=$((n+1)) +echo_i "checking that forwarding doesn't spontaneously happen ($n)" +ret=0 +dig_with_opts +noadd +noauth txt.example2. txt @$root > dig.out.$n.root || ret=1 +dig_with_opts +noadd +noauth txt.example2. txt @$f2 > dig.out.$n.f2 || ret=1 +digcomp dig.out.$n.root dig.out.$n.f2 || ret=1 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +n=$((n+1)) +echo_i "checking that a forward zone with no specified policy works ($n)" +ret=0 +dig_with_opts +noadd +noauth txt.example3. txt @$hidden > dig.out.$n.hidden || ret=1 +dig_with_opts +noadd +noauth txt.example3. txt @$f2 > dig.out.$n.f2 || ret=1 +digcomp dig.out.$n.hidden dig.out.$n.f2 || ret=1 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +n=$((n+1)) +echo_i "checking that a forward only doesn't recurse ($n)" +ret=0 +dig_with_opts txt.example5. txt @$f2 > dig.out.$n.f2 || ret=1 +grep "SERVFAIL" dig.out.$n.f2 > /dev/null || ret=1 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +n=$((n+1)) +echo_i "checking for negative caching of forwarder response ($n)" +# prime the cache, shutdown the forwarder then check that we can +# get the answer from the cache. restart forwarder. +ret=0 +dig_with_opts nonexist. txt @10.53.0.5 > dig.out.$n.f2 || ret=1 +grep "status: NXDOMAIN" dig.out.$n.f2 > /dev/null || ret=1 +stop_server ns4 || ret=1 +dig_with_opts nonexist. txt @10.53.0.5 > dig.out.$n.f2 || ret=1 +grep "status: NXDOMAIN" dig.out.$n.f2 > /dev/null || ret=1 +start_server --restart --noclean --port "${PORT}" ns4 || ret=1 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +check_override() ( + dig_with_opts 1.0.10.in-addr.arpa TXT @10.53.0.4 > dig.out.$n.f2 && + grep "status: NOERROR" dig.out.$n.f2 > /dev/null && + dig_with_opts 2.0.10.in-addr.arpa TXT @10.53.0.4 > dig.out.$n.f2 && + grep "status: NXDOMAIN" dig.out.$n.f2 > /dev/null +) + +n=$((n+1)) +echo_i "checking that forward only zone overrides empty zone ($n)" +ret=0 +# retry loop in case the server restart above causes transient failure +retry_quiet 10 check_override || ret=1 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +n=$((n+1)) +echo_i "checking that DS lookups for grafting forward zones are isolated ($n)" +ret=0 +dig_with_opts grafted A @10.53.0.4 > dig.out.$n.q1 || ret=1 +dig_with_opts grafted DS @10.53.0.4 > dig.out.$n.q2 || ret=1 +dig_with_opts grafted A @10.53.0.4 > dig.out.$n.q3 || ret=1 +dig_with_opts grafted AAAA @10.53.0.4 > dig.out.$n.q4 || ret=1 +grep "status: NOERROR" dig.out.$n.q1 > /dev/null || ret=1 +grep "status: NXDOMAIN" dig.out.$n.q2 > /dev/null || ret=1 +grep "status: NOERROR" dig.out.$n.q3 > /dev/null || ret=1 +grep "status: NOERROR" dig.out.$n.q4 > /dev/null || ret=1 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +n=$((n+1)) +echo_i "checking that rfc1918 inherited 'forward first;' zones are warned about ($n)" +ret=0 +$CHECKCONF rfc1918-inherited.conf | grep "forward first;" >/dev/null || ret=1 +$CHECKCONF rfc1918-notinherited.conf | grep "forward first;" >/dev/null && ret=1 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +n=$((n+1)) +echo_i "checking that ULA inherited 'forward first;' zones are warned about ($n)" +ret=0 +$CHECKCONF ula-inherited.conf | grep "forward first;" >/dev/null || ret=1 +$CHECKCONF ula-notinherited.conf | grep "forward first;" >/dev/null && ret=1 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +count_sent() ( + logfile="$1" + start_pattern="$2" + pattern="$3" + nextpartpeek "$logfile" | tr -d '\r' | sed -n "/$start_pattern/,/^\$/p" | grep -c "$pattern" +) + +check_sent() ( + expected="$1" + shift + count=$(count_sent "$@") + [ "$expected" = "$count" ] +) + +wait_for_log() ( + nextpartpeek "$1" | grep "$2" >/dev/null + +) + +n=$((n+1)) +echo_i "checking that a forwarder timeout prevents it from being reused in the same fetch context ($n)" +ret=0 +# Make ans6 receive queries without responding to them. +echo "//" | sendcmd +# Query for a record in a zone which is forwarded to a non-responding forwarder +# and is delegated from the root to check whether the forwarder will be retried +# when a delegation is encountered after falling back to full recursive +# resolution. +nextpart ns3/named.run >/dev/null +dig_with_opts txt.example7. txt @$f1 > dig.out.$n.f1 || ret=1 +# The forwarder for the "example7" zone should only be queried once. +start_pattern="sending packet to 10\.53\.0\.6" +retry_quiet 5 wait_for_log ns3/named.run "$start_pattern" +check_sent 1 ns3/named.run "$start_pattern" ";txt\.example7\.[[:space:]]*IN[[:space:]]*TXT$" || ret=1 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +n=$((n+1)) +echo_i "checking that priming queries are not forwarded ($n)" +ret=0 +nextpart ns7/named.run >/dev/null +dig_with_opts +noadd +noauth txt.example1. txt @10.53.0.7 > dig.out.$n.f7 || ret=1 +received_pattern="received packet from 10\.53\.0\.1" +start_pattern="sending packet to 10\.53\.0\.1" +retry_quiet 5 wait_for_log ns7/named.run "$received_pattern" || ret=1 +check_sent 1 ns7/named.run "$start_pattern" ";\.[[:space:]]*IN[[:space:]]*NS$" || ret=1 +sent=$(grep -c "10.53.0.7#.* (.): query '\./NS/IN' approved" ns4/named.run) +[ "$sent" -eq 0 ] || ret=1 +sent=$(grep -c "10.53.0.7#.* (.): query '\./NS/IN' approved" ns1/named.run) +[ "$sent" -eq 1 ] || ret=1 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +n=$((n+1)) +echo_i "checking recovery from forwarding to a non-recursive server ($n)" +ret=0 +dig_with_opts xxx.sld.tld txt @10.53.0.8 > dig.out.$n.f8 || ret=1 +grep "status: NOERROR" dig.out.$n.f8 > /dev/null || ret=1 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +n=$((n+1)) +echo_i "checking that rebinding protection works in forward only mode ($n)" +ret=0 +# 10.53.0.5 will forward target.malicious. query to 10.53.0.4 +# which in turn will return a CNAME for subdomain.rebind. +# to honor the option deny-answer-aliases { "rebind"; }; +# ns5 should return a SERVFAIL to avoid potential rebinding attacks +dig_with_opts +noadd +noauth @10.53.0.5 target.malicious. > dig.out.$n || ret=1 +grep "status: SERVFAIL" dig.out.$n > /dev/null || ret=1 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +n=$((n+1)) +echo_i "checking switch from forwarding to normal resolution while chasing DS ($n)" +ret=0 +copy_setports ns3/named2.conf.in ns3/named.conf +rndccmd 10.53.0.3 reconfig 2>&1 | sed 's/^/ns3 /' | cat_i +sleep 1 +sendcmd << EOF +/ns1.sld.tld/A/ +300 A 10.53.0.2 +/sld.tld/NS/ +300 NS ns1.sld.tld. +/sld.tld/ +EOF +nextpart ns3/named.run >/dev/null +dig_with_opts @$f1 xxx.yyy.sld.tld ds > dig.out.$n.f1 || ret=1 +grep "status: SERVFAIL" dig.out.$n.f1 > /dev/null || ret=1 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +# +# Check various spoofed response scenarios. The same tests will be +# run twice, with "forward first" and "forward only" configurations. +# +run_spooftests () { + n=$((n+1)) + echo_i "checking spoofed response scenario 1 - out of bailiwick NS ($n)" + ret=0 + # prime + dig_with_opts @10.53.0.9 attackSecureDomain.net > dig.out.$n.prime || ret=1 + # check 'net' is not poisoned. + dig_with_opts @10.53.0.9 diditwork.net. TXT > dig.out.$n.net || ret=1 + grep '^diditwork\.net\..*TXT.*"recursed"' dig.out.$n.net > /dev/null || ret=1 + # check 'sub.local.net' is not poisoned. + dig_with_opts @10.53.0.9 sub.local.net TXT > dig.out.$n.sub || ret=1 + grep '^sub\.local\.net\..*TXT.*"recursed"' dig.out.$n.sub > /dev/null || ret=1 + if [ $ret != 0 ]; then echo_i "failed"; fi + status=$((status+ret)) + + n=$((n+1)) + echo_i "checking spoofed response scenario 2 - inject DNAME/net2. ($n)" + ret=0 + # prime + dig_with_opts @10.53.0.9 attackSecureDomain.net2 > dig.out.$n.prime || ret=1 + # check that net2/DNAME is not cached + dig_with_opts @10.53.0.9 net2. DNAME > dig.out.$n.net2 || ret=1 + grep "ANSWER: 0," dig.out.$n.net2 > /dev/null || ret=1 + grep "status: NXDOMAIN" dig.out.$n.net2 > /dev/null || ret=1 + if [ $ret != 0 ]; then echo_i "failed"; fi + status=$((status+ret)) + + n=$((n+1)) + echo_i "checking spoofed response scenario 3 - extra answer ($n)" + ret=0 + # prime + dig_with_opts @10.53.0.9 attackSecureDomain.net3 > dig.out.$n.prime || ret=1 + # check extra net3 records are not cached + rndccmd 10.53.0.9 dumpdb -cache 2>&1 | sed 's/^/ns9 /' | cat_i + for try in 1 2 3 4 5; do + lines=$(grep "net3" ns9/named_dump.db | wc -l) + if [ ${lines} -eq 0 ]; then + sleep 1 + continue + fi + [ ${lines} -eq 1 ] || ret=1 + grep -q '^attackSecureDomain.net3' ns9/named_dump.db || ret=1 + grep -q '^local.net3' ns9/named_dump.db && ret=1 + done + if [ $ret != 0 ]; then echo_i "failed"; fi + status=$((status+ret)) +} + +echo_i "checking spoofed response scenarios with forward first zones" +run_spooftests + +copy_setports ns9/named2.conf.in ns9/named.conf +rndccmd 10.53.0.9 reconfig 2>&1 | sed 's/^/ns3 /' | cat_i +rndccmd 10.53.0.9 flush 2>&1 | sed 's/^/ns3 /' | cat_i +sleep 1 + +echo_i "rechecking spoofed response scenarios with forward only zones" +run_spooftests + +# +# This scenario expects the spoofed response to succeed. The tests are +# similar to the ones above, but not identical. +# +echo_i "rechecking spoofed response scenarios with 'forward only' set globally" +copy_setports ns9/named3.conf.in ns9/named.conf +rndccmd 10.53.0.9 reconfig 2>&1 | sed 's/^/ns3 /' | cat_i +rndccmd 10.53.0.9 flush 2>&1 | sed 's/^/ns3 /' | cat_i +sleep 1 + +n=$((n+1)) +echo_i "checking spoofed response scenario 1 - out of bailiwick NS ($n)" +ret=0 +# prime +dig_with_opts @10.53.0.9 attackSecureDomain.net > dig.out.$n.prime || ret=1 +# check 'net' is poisoned. +dig_with_opts @10.53.0.9 diditwork.net. TXT > dig.out.$n.net || ret=1 +grep '^didItWork\.net\..*TXT.*"if you can see this record the attack worked"' dig.out.$n.net > /dev/null || ret=1 +# check 'sub.local.net' is poisoned. +dig_with_opts @10.53.0.9 sub.local.net TXT > dig.out.$n.sub || ret=1 +grep '^sub\.local\.net\..*TXT.*"if you see this attacker overrode local delegation"' dig.out.$n.sub > /dev/null || ret=1 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +n=$((n+1)) +echo_i "checking spoofed response scenario 2 - inject DNAME/net2. ($n)" +ret=0 +# prime +dig_with_opts @10.53.0.9 attackSecureDomain.net2 > dig.out.$n.prime || ret=1 +# check that net2/DNAME is cached +dig_with_opts @10.53.0.9 net2. DNAME > dig.out.$n.net2 || ret=1 +grep "ANSWER: 1," dig.out.$n.net2 > /dev/null || ret=1 +grep "net2\..*IN.DNAME.net\.example\.lll\." dig.out.$n.net2 > /dev/null || ret=1 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +# +# This test doesn't use any forwarder clauses but is here because it +# is similar to forwarders, as the set of servers that can populate +# the namespace is defined by the zone content. +# +echo_i "rechecking spoofed response scenarios glue below local zone" +copy_setports ns9/named4.conf.in ns9/named.conf +rndccmd 10.53.0.9 reconfig 2>&1 | sed 's/^/ns3 /' | cat_i +rndccmd 10.53.0.9 flush 2>&1 | sed 's/^/ns3 /' | cat_i +sleep 1 + +n=$((n+1)) +echo_i "checking sibling glue below zone ($n)" +ret=0 +# prime +dig_with_opts @10.53.0.9 sibling.tld > dig.out.$n.prime || ret=1 +# check for glue A record for sub.local.tld is not used +dig_with_opts @10.53.0.9 sub.local.tld TXT > dig.out.$n.sub || ret=1 +grep "ANSWER: 1," dig.out.$n.sub > /dev/null || ret=1 +grep 'sub\.local\.tld\..*IN.TXT."good"$' dig.out.$n.sub > /dev/null || ret=1 +if [ $ret != 0 ]; then echo_i "failed"; fi +status=$((status+ret)) + +echo_i "exit status: $status" +[ $status -eq 0 ] || exit 1 |