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-rw-r--r--bin/tests/system/ixfr/tests.sh412
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diff --git a/bin/tests/system/ixfr/tests.sh b/bin/tests/system/ixfr/tests.sh
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+++ b/bin/tests/system/ixfr/tests.sh
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+#!/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.
+
+# WARNING: The test labelled "testing request-ixfr option in view vs zone"
+# is fragile because it depends upon counting instances of records
+# in the log file - need a better approach <sdm> - until then,
+# if you add any tests above that point, you will break the test.
+
+SYSTEMTESTTOP=..
+. $SYSTEMTESTTOP/conf.sh
+
+wait_for_serial() (
+ $DIG $DIGOPTS "@$1" "$2" SOA > "$4"
+ serial=$(awk '$4 == "SOA" { print $7 }' "$4")
+ [ "$3" -eq "${serial:--1}" ]
+)
+
+status=0
+n=0
+
+DIGOPTS="+tcp +noadd +nosea +nostat +noquest +nocomm +nocmd -p ${PORT}"
+SENDCMD="$PERL ../send.pl 10.53.0.2 ${EXTRAPORT1}"
+RNDCCMD="$RNDC -p ${CONTROLPORT} -c ../common/rndc.conf -s"
+
+n=$((n+1))
+echo_i "testing initial AXFR ($n)"
+ret=0
+
+$SENDCMD <<EOF
+/SOA/
+nil. 300 SOA ns.nil. root.nil. 1 300 300 604800 300
+/AXFR/
+nil. 300 SOA ns.nil. root.nil. 1 300 300 604800 300
+/AXFR/
+nil. 300 NS ns.nil.
+nil. 300 TXT "initial AXFR"
+a.nil. 60 A 10.0.0.61
+b.nil. 60 A 10.0.0.62
+/AXFR/
+nil. 300 SOA ns.nil. root.nil. 1 300 300 604800 300
+EOF
+
+sleep 1
+
+# Initially, ns1 is not authoritative for anything (see setup.sh).
+# Now that ans is up and running with the right data, we make it
+# a secondary for nil.
+
+cat <<EOF >>ns1/named.conf
+zone "nil" {
+ type secondary;
+ file "myftp.db";
+ primaries { 10.53.0.2; };
+};
+EOF
+
+rndc_reload ns1 10.53.0.1
+
+retry_quiet 10 wait_for_serial 10.53.0.1 nil. 1 dig.out.test$n || ret=1
+
+$DIG $DIGOPTS @10.53.0.1 nil. TXT | grep 'initial AXFR' >/dev/null || ret=1
+if [ $ret != 0 ]; then echo_i "failed"; fi
+status=$((status+ret))
+
+n=$((n+1))
+echo_i "testing successful IXFR ($n)"
+ret=0
+
+# We change the IP address of a.nil., and the TXT record at the apex.
+# Then we do a SOA-only update.
+
+$SENDCMD <<EOF
+/SOA/
+nil. 300 SOA ns.nil. root.nil. 3 300 300 604800 300
+/IXFR/
+nil. 300 SOA ns.nil. root.nil. 3 300 300 604800 300
+nil. 300 SOA ns.nil. root.nil. 1 300 300 604800 300
+a.nil. 60 A 10.0.0.61
+nil. 300 TXT "initial AXFR"
+nil. 300 SOA ns.nil. root.nil. 2 300 300 604800 300
+nil. 300 TXT "successful IXFR"
+a.nil. 60 A 10.0.1.61
+nil. 300 SOA ns.nil. root.nil. 2 300 300 604800 300
+nil. 300 SOA ns.nil. root.nil. 3 300 300 604800 300
+nil. 300 SOA ns.nil. root.nil. 3 300 300 604800 300
+EOF
+
+sleep 1
+
+$RNDCCMD 10.53.0.1 refresh nil | sed 's/^/ns1 /' | cat_i
+
+sleep 2
+
+$DIG $DIGOPTS @10.53.0.1 nil. TXT | grep 'successful IXFR' >/dev/null || ret=1
+if [ $ret != 0 ]; then echo_i "failed"; fi
+status=$((status+ret))
+
+n=$((n+1))
+echo_i "testing AXFR fallback after IXFR failure (not exact error) ($n)"
+ret=0
+
+# Provide a broken IXFR response and a working fallback AXFR response
+
+$SENDCMD <<EOF
+/SOA/
+nil. 300 SOA ns.nil. root.nil. 4 300 300 604800 300
+/IXFR/
+nil. 300 SOA ns.nil. root.nil. 4 300 300 604800 300
+nil. 300 SOA ns.nil. root.nil. 3 300 300 604800 300
+nil. 300 TXT "delete-nonexistent-txt-record"
+nil. 300 SOA ns.nil. root.nil. 4 300 300 604800 300
+nil. 300 TXT "this-txt-record-would-be-added"
+nil. 300 SOA ns.nil. root.nil. 4 300 300 604800 300
+/AXFR/
+nil. 300 SOA ns.nil. root.nil. 3 300 300 604800 300
+/AXFR/
+nil. 300 NS ns.nil.
+nil. 300 TXT "fallback AXFR"
+/AXFR/
+nil. 300 SOA ns.nil. root.nil. 3 300 300 604800 300
+EOF
+
+sleep 1
+
+$RNDCCMD 10.53.0.1 refresh nil | sed 's/^/ns1 /' | cat_i
+
+sleep 2
+
+$DIG $DIGOPTS @10.53.0.1 nil. TXT | grep 'fallback AXFR' >/dev/null || ret=1
+if [ $ret != 0 ]; then echo_i "failed"; fi
+status=$((status+ret))
+
+n=$((n+1))
+echo_i "testing AXFR fallback after IXFR failure (bad SOA owner) ($n)"
+ret=0
+
+# Prepare for checking the logs later on.
+nextpart ns1/named.run >/dev/null
+
+# Provide a broken IXFR response and a working fallback AXFR response.
+$SENDCMD <<EOF
+/SOA/
+nil. 300 SOA ns.nil. root.nil. 4 300 300 604800 300
+/IXFR/
+nil. 300 SOA ns.nil. root.nil. 4 300 300 604800 300
+nil. 300 SOA ns.nil. root.nil. 3 300 300 604800 300
+bad-owner. 300 SOA ns.nil. root.nil. 4 300 300 604800 300
+test.nil. 300 TXT "serial 4, malformed IXFR"
+nil. 300 SOA ns.nil. root.nil. 4 300 300 604800 300
+/AXFR/
+nil. 300 SOA ns.nil. root.nil. 4 300 300 604800 300
+/AXFR/
+nil. 300 NS ns.nil.
+test.nil. 300 TXT "serial 4, fallback AXFR"
+/AXFR/
+nil. 300 SOA ns.nil. root.nil. 4 300 300 604800 300
+EOF
+$RNDCCMD 10.53.0.1 refresh nil | sed 's/^/ns1 /' | cat_i
+
+# A broken server would accept the malformed IXFR and apply its contents to the
+# zone. A fixed one would reject the IXFR and fall back to AXFR. Both IXFR and
+# AXFR above bring the nil. zone up to serial 4, but we cannot reliably query
+# for the SOA record to check whether the transfer was finished because a broken
+# server would send back SERVFAIL responses to SOA queries after accepting the
+# malformed IXFR. Instead, check transfer progress by querying for a TXT record
+# at test.nil. which is present in both IXFR and AXFR (with different contents).
+_wait_until_transfer_is_finished() {
+ $DIG $DIGOPTS +tries=1 +time=1 @10.53.0.1 test.nil. TXT > dig.out.test$n.1 &&
+ grep -q -F "serial 4" dig.out.test$n.1
+}
+if ! retry_quiet 10 _wait_until_transfer_is_finished; then
+ echo_i "timed out waiting for version 4 of zone nil. to be transferred"
+ ret=1
+fi
+
+# At this point a broken server would be serving a zone with no SOA records.
+# Try crashing it by triggering a SOA refresh query.
+$RNDCCMD 10.53.0.1 refresh nil | sed 's/^/ns1 /' | cat_i
+
+# Do not wait until the zone refresh completes - even if a crash has not
+# happened by now, a broken server would never serve the record which is only
+# present in the fallback AXFR, so checking for that is enough to verify if a
+# server is broken or not; if it is, it is bound to crash shortly anyway.
+$DIG $DIGOPTS test.nil. TXT @10.53.0.1 > dig.out.test$n.2 || ret=1
+grep -q -F "serial 4, fallback AXFR" dig.out.test$n.2 || ret=1
+
+# Ensure the expected error is logged.
+nextpart ns1/named.run | grep -q -F "SOA name mismatch" || ret=1
+
+if [ $ret != 0 ]; then echo_i "failed"; fi
+status=$((status+ret))
+
+n=$((n+1))
+echo_i "testing ixfr-from-differences option ($n)"
+# ns3 is primary; ns4 is secondary
+$CHECKZONE test. ns3/mytest.db > /dev/null 2>&1
+if [ $? -ne 0 ]
+then
+ echo_i "named-checkzone returned failure on ns3/mytest.db"
+fi
+
+retry_quiet 10 wait_for_serial 10.53.0.4 test. 1 dig.out.test$n || ret=1
+
+nextpart ns4/named.run > /dev/null
+
+# modify the primary
+sleep 1
+cp ns3/mytest1.db ns3/mytest.db
+$RNDCCMD 10.53.0.3 reload | sed 's/^/ns3 /' | cat_i
+
+# wait for primary to reload
+retry_quiet 10 wait_for_serial 10.53.0.3 test. 2 dig.out.test$n || ret=1
+
+# wait for secondary to reload
+tret=0
+retry_quiet 5 wait_for_serial 10.53.0.4 test. 2 dig.out.test$n || tret=1
+if [ $tret -eq 1 ]; then
+ # re-noitfy after 5 seconds, then wait another 10
+ $RNDCCMD 10.53.0.3 notify test | set 's/^/ns3 /' | cat_i
+ retry_quiet 10 wait_for_serial 10.53.0.4 test. 2 dig.out.test$n || ret=1
+fi
+
+wait_for_log 10 'got incremental' ns4/named.run || ret=1
+if [ $ret != 0 ]; then echo_i "failed"; fi
+status=$((status+ret))
+
+n=$((n+1))
+echo_i "testing 'request-ixfr no' option inheritance from view ($n)"
+ret=0
+# There's a view with 2 zones. In the view, "request-ixfr yes"
+# but in the zone "sub.test", request-ixfr no"
+# we want to make sure that a change to sub.test results in AXFR, while
+# changes to test. result in IXFR
+
+sleep 1
+cp ns3/subtest1.db ns3/subtest.db # change to sub.test zone, should be AXFR
+nextpart ns4/named.run > /dev/null
+$RNDCCMD 10.53.0.3 reload | sed 's/^/ns3 /' | cat_i
+
+# wait for primary to reload
+retry_quiet 10 wait_for_serial 10.53.0.3 sub.test. 3 dig.out.test$n || ret=1
+
+# wait for secondary to reload
+tret=0
+retry_quiet 5 wait_for_serial 10.53.0.4 sub.test. 3 dig.out.test$n || tret=1
+if [ $tret -eq 1 ]; then
+ # re-noitfy after 5 seconds, then wait another 10
+ $RNDCCMD 10.53.0.3 notify sub.test | set 's/^/ns3 /' | cat_i
+ retry_quiet 10 wait_for_serial 10.53.0.4 sub.test. 3 dig.out.test$n || ret=1
+fi
+
+wait_for_log 10 'got nonincremental response' ns4/named.run || ret=1
+if [ $ret != 0 ]; then echo_i "failed"; fi
+status=$((status+ret))
+
+n=$((n+1))
+echo_i "testing 'request-ixfr yes' option inheritance from view ($n)"
+ret=0
+sleep 1
+cp ns3/mytest2.db ns3/mytest.db # change to test zone, should be IXFR
+nextpart ns4/named.run > /dev/null
+$RNDCCMD 10.53.0.3 reload | sed 's/^/ns3 /' | cat_i
+
+# wait for primary to reload
+retry_quiet 10 wait_for_serial 10.53.0.3 test. 3 dig.out.test$n || ret=1
+
+# wait for secondary to reload
+tret=0
+retry_quiet 5 wait_for_serial 10.53.0.4 test. 3 dig.out.test$n || tret=1
+if [ $tret -eq 1 ]; then
+ # re-noitfy after 5 seconds, then wait another 10
+ $RNDCCMD 10.53.0.3 notify test | set 's/^/ns3 /' | cat_i
+ retry_quiet 10 wait_for_serial 10.53.0.4 test. 3 dig.out.test$n || ret=1
+fi
+
+wait_for_log 10 'got incremental response' ns4/named.run || ret=1
+if [ $ret != 0 ]; then echo_i "failed"; fi
+status=$((status+ret))
+
+n=$((n+1))
+ret=0
+echo_i "testing DiG's handling of a multi message AXFR style IXFR response ($n)"
+(
+(sleep 10 && kill $$) 2>/dev/null &
+sub=$!
+$DIG -p ${PORT} ixfr=0 large @10.53.0.3 > dig.out.test$n
+kill $sub
+)
+lines=`grep hostmaster.large dig.out.test$n | wc -l`
+test ${lines:-0} -eq 2 || ret=1
+messages=`sed -n 's/^;;.*messages \([0-9]*\),.*/\1/p' dig.out.test$n`
+test ${messages:-0} -gt 1 || ret=1
+if [ $ret != 0 ]; then echo_i "failed"; fi
+status=$((status+ret))
+
+n=$((n+1))
+echo_i "test 'dig +notcp ixfr=<value>' vs 'dig ixfr=<value> +notcp' vs 'dig ixfr=<value>' ($n)"
+ret=0
+# Should be "switch to TCP" response
+$DIG $DIGOPTS +notcp ixfr=1 test @10.53.0.4 > dig.out1.test$n || ret=1
+$DIG $DIGOPTS ixfr=1 +notcp test @10.53.0.4 > dig.out2.test$n || ret=1
+digcomp dig.out1.test$n dig.out2.test$n || ret=1
+awk '$4 == "SOA" { soacnt++} END {if (soacnt == 1) exit(0); else exit(1);}' dig.out1.test$n || ret=1
+awk '$4 == "SOA" { if ($7 == 3) exit(0); else exit(1);}' dig.out1.test$n || ret=1
+#
+nextpart ns4/named.run > /dev/null
+# Should be incremental transfer.
+$DIG $DIGOPTS ixfr=1 test @10.53.0.4 > dig.out3.test$n || ret=1
+awk '$4 == "SOA" { soacnt++} END { if (soacnt == 6) exit(0); else exit(1);}' dig.out3.test$n || ret=1
+if [ $ret != 0 ]; then echo_i "failed"; fi
+status=$((status+ret))
+
+n=$((n+1))
+echo_i "check estimated IXFR size ($n)"
+ret=0
+# note IXFR delta size will be slightly bigger with version 1 transaction
+# headers as there is no correction for the overall record length storage.
+# Ver1 = 4 * (6 + 10 + 10 + 17 + 5 * 4) + 2 * (13 + 10 + 4) + (6 * 4) = 330
+# Ver2 = 4 * (6 + 10 + 10 + 17 + 5 * 4) + 2 * (13 + 10 + 4) = 306
+nextpart ns4/named.run | grep "IXFR delta size (306 bytes)" > /dev/null || ret=1
+if [ $ret != 0 ]; then echo_i "failed"; fi
+status=$((status+ret))
+
+# make sure ns5 has transfered the zone
+# wait for secondary to reload
+tret=0
+retry_quiet 5 wait_for_serial 10.53.0.5 test. 4 dig.out.test$n || tret=1
+if [ $tret -eq 1 ]; then
+ # re-noitfy after 5 seconds, then wait another 10
+ $RNDCCMD 10.53.0.3 notify test | set 's/^/ns3 /' | cat_i
+ retry_quiet 10 wait_for_serial 10.53.0.5 test. 3 dig.out.test$n || ret=1
+fi
+
+n=$((n+1))
+echo_i "test 'provide-ixfr no;' (serial < current) ($n)"
+ret=0
+nextpart ns5/named.run > /dev/null
+# Should be "AXFR style" response
+$DIG $DIGOPTS ixfr=1 test @10.53.0.5 > dig.out1.test$n || ret=1
+# Should be "switch to TCP" response
+$DIG $DIGOPTS ixfr=1 +notcp test @10.53.0.5 > dig.out2.test$n || ret=1
+awk '$4 == "SOA" { soacnt++} END {if (soacnt == 2) exit(0); else exit(1);}' dig.out1.test$n || ret=1
+awk '$4 == "SOA" { soacnt++} END {if (soacnt == 1) exit(0); else exit(1);}' dig.out2.test$n || ret=1
+if [ $ret != 0 ]; then echo_i "failed"; fi
+status=$((status+ret))
+
+n=$((n+1))
+echo_i "checking whether dig calculates IXFR statistics correctly ($n)"
+ret=0
+$DIG $DIGOPTS +noedns +stat -b 10.53.0.4 @10.53.0.4 test. ixfr=2 > dig.out1.test$n
+get_dig_xfer_stats dig.out1.test$n > stats.dig
+diff ixfr-stats.good stats.dig > /dev/null || ret=1
+if [ $ret != 0 ]; then echo_i "failed"; fi
+status=$((status+ret))
+
+# Note: in the next two tests, we use ns4 logs for checking both incoming and
+# outgoing transfer statistics as ns4 is both a secondary server (for ns3) and a
+# primary server (for dig queries from the previous test) for "test".
+
+_wait_for_stats () {
+ get_named_xfer_stats ns4/named.run "$1" test "$2" > "$3"
+ diff ixfr-stats.good "$3" > /dev/null || return 1
+ return 0
+}
+
+n=$((n+1))
+echo_i "checking whether named calculates incoming IXFR statistics correctly ($n)"
+ret=0
+retry_quiet 10 _wait_for_stats 10.53.0.3 "Transfer completed" stats.incoming || ret=1
+if [ $ret != 0 ]; then echo_i "failed"; fi
+status=$((status+ret))
+
+n=$((n+1))
+echo_i "checking whether named calculates outgoing IXFR statistics correctly ($n)"
+retry_quiet 10 _wait_for_stats 10.53.0.4 "IXFR ended" stats.outgoing || ret=1
+if [ $ret != 0 ]; then echo_i "failed"; fi
+status=$((status+ret))
+
+n=$((n+1))
+ret=0
+echo_i "testing fallback to AXFR when max-ixfr-ratio is exceeded ($n)"
+nextpart ns4/named.run > /dev/null
+
+sleep 1
+cp ns3/mytest3.db ns3/mytest.db # change to test zone, too big for IXFR
+$RNDCCMD 10.53.0.3 reload | sed 's/^/ns3 /' | cat_i
+
+# wait for secondary to reload
+tret=0
+retry_quiet 5 wait_for_serial 10.53.0.4 test. 4 dig.out.test$n || tret=1
+if [ $tret -eq 1 ]; then
+ # re-noitfy after 5 seconds, then wait another 10
+ $RNDCCMD 10.53.0.3 notify test | set 's/^/ns3 /' | cat_i
+ retry_quiet 10 wait_for_serial 10.53.0.4 test. 4 dig.out.test$n || ret=1
+fi
+
+wait_for_log 10 'got nonincremental response' ns4/named.run || ret=1
+if [ $ret != 0 ]; then echo_i "failed"; fi
+status=$((status+ret))
+
+echo_i "exit status: $status"
+[ $status -eq 0 ] || exit 1