Support for NSEC3 in dnssec-policy
Implement support for NSEC3 in dnssec-policy. Store the configuration in kasp objects. When configuring a zone, call 'dns_zone_setnsec3param' to queue an nsec3param event. This will ensure that any previous chains will be removed and a chain according to the dnssec-policy is created. Add tests for dnssec-policy zones that uses the new 'nsec3param' option, as well as changing to new values, changing to NSEC, and changing from NSEC.
This commit is contained in:
Matthijs Mekking
244
bin/tests/system/nsec3/tests.sh
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244
bin/tests/system/nsec3/tests.sh
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#!/bin/sh
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#
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# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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#
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, you can obtain one at https://mozilla.org/MPL/2.0/.
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#
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# See the COPYRIGHT file distributed with this work for additional
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# information regarding copyright ownership.
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# shellcheck source=conf.sh
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. ../conf.sh
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# Log errors and increment $ret.
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log_error() {
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echo_i "error: $1"
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ret=$((ret+1))
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}
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# Call dig with default options.
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dig_with_opts() {
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$DIG +tcp +noadd +nosea +nostat +nocmd +dnssec -p "$PORT" "$@"
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}
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# Call rndc.
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rndccmd() {
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"$RNDC" -c ../common/rndc.conf -p "$CONTROLPORT" -s "$@"
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}
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# Set server key-directory ($1) and address ($2) for testing nsec3.
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set_server() {
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DIR=$1
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SERVER=$2
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}
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# Set zone name ($1) and policy ($2) for testing nsec3.
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set_zone_policy() {
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ZONE=$1
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POLICY=$2
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}
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# Set expected NSEC3 parameters: flags ($1), iterations ($2), and salt ($3).
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set_nsec3param() {
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FLAGS=$1
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ITERATIONS=$2
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SALT=$3
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}
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# The apex NSEC3PARAM record indicates that it is signed.
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_wait_for_nsec3param() {
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dig_with_opts +noquestion "@${SERVER}" "$ZONE" NSEC3PARAM > "dig.out.test$n.wait" || return 1
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grep "${ZONE}\..*IN.*NSEC3PARAM.*1.*0.*${ITERATIONS}.*${SALT}" "dig.out.test$n.wait" > /dev/null || return 1
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grep "${ZONE}\..*IN.*RRSIG" "dig.out.test$n.wait" > /dev/null || return 1
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return 0
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}
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# The apex NSEC record indicates that it is signed.
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_wait_for_nsec() {
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dig_with_opts +noquestion "@${SERVER}" "$ZONE" NSEC > "dig.out.test$n.wait" || return 1
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grep "NS SOA" "dig.out.test$n.wait" > /dev/null || return 1
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grep "${ZONE}\..*IN.*RRSIG" "dig.out.test$n.wait" > /dev/null || return 1
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grep "${ZONE}\..*IN.*NSEC3PARAM" "dig.out.test$n.wait" > /dev/null && return 1
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return 0
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}
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# Wait for the zone to be signed.
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wait_for_zone_is_signed() {
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n=$((n+1))
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ret=0
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echo_i "wait for ${ZONE} to be signed ($n)"
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if [ "$1" = "nsec3" ]; then
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retry_quiet 10 _wait_for_nsec3param || log_error "wait for ${ZONE} to be signed failed"
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else
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retry_quiet 10 _wait_for_nsec || log_error "wait for ${ZONE} to be signed failed"
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fi
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test "$ret" -eq 0 || echo_i "failed"
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status=$((status+ret))
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}
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# Test: dnssec-verify zone $1.
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dnssec_verify()
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{
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n=$((n+1))
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echo_i "dnssec-verify zone ${ZONE} ($n)"
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ret=0
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dig_with_opts "$ZONE" "@${SERVER}" AXFR > dig.out.test$n.axfr || log_error "dig ${ZONE} AXFR failed"
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$VERIFY -z -o "$ZONE" dig.out.test$n.axfr > /dev/null || log_error "dnssec verify zone $ZONE failed"
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test "$ret" -eq 0 || echo_i "failed"
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status=$((status+ret))
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}
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# Test: check NSEC in answers
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_check_nsec_nsec3param()
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{
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dig_with_opts +noquestion @$SERVER "${ZONE}" NSEC3PARAM > "dig.out.test$n.nsec3param.$ZONE" || return 1
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grep "NSEC3PARAM" "dig.out.test$n.nsec3param.$ZONE" > /dev/null && return 1
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return 0
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}
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_check_nsec_nxdomain()
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{
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dig_with_opts @$SERVER "nosuchname.${ZONE}" > "dig.out.test$n.nxdomain.$ZONE" || return 1
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grep "${ZONE}.*IN.*NSEC.*NS.*SOA.*RRSIG.*NSEC.*DNSKEY" "dig.out.test$n.nxdomain.$ZONE" > /dev/null || return 1
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grep "NSEC3" "dig.out.test$n.nxdomain.$ZONE" > /dev/null && return 1
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return 0
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}
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check_nsec()
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{
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n=$((n+1))
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echo_i "check NSEC3PARAM response for zone ${ZONE} ($n)"
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ret=0
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retry_quiet 10 _check_nsec_nsec3param || log_error "unexpected NSEC3PARAM in response for zone ${ZONE}"
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test "$ret" -eq 0 || echo_i "failed"
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status=$((status+ret))
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n=$((n+1))
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echo_i "check NXDOMAIN response for zone ${ZONE} ($n)"
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ret=0
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retry_quiet 10 _check_nsec_nxdomain || log_error "bad NXDOMAIN response for zone ${ZONE}"
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test "$ret" -eq 0 || echo_i "failed"
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status=$((status+ret))
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}
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# Test: check NSEC3 parameters in answers
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_check_nsec3_nsec3param()
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{
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dig_with_opts +noquestion @$SERVER "${ZONE}" NSEC3PARAM > "dig.out.test$n.nsec3param.$ZONE" || return 1
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grep "${ZONE}.*0.*IN.*NSEC3PARAM.*1.*0.*${ITERATIONS}.*${SALT}" "dig.out.test$n.nsec3param.$ZONE" > /dev/null || return 1
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return 0
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}
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_check_nsec3_nxdomain()
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{
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dig_with_opts @$SERVER "nosuchname.${ZONE}" > "dig.out.test$n.nxdomain.$ZONE" || return 1
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grep ".*\.${ZONE}.*IN.*NSEC3.*1.${FLAGS}.*${ITERATIONS}.*${SALT}" "dig.out.test$n.nxdomain.$ZONE" > /dev/null || return 1
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return 0
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}
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check_nsec3()
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{
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n=$((n+1))
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echo_i "check NSEC3PARAM response for zone ${ZONE} ($n)"
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ret=0
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retry_quiet 10 _check_nsec3_nsec3param || log_error "bad NSEC3PARAM response for ${ZONE}"
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test "$ret" -eq 0 || echo_i "failed"
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status=$((status+ret))
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n=$((n+1))
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echo_i "check NSEC3 response for zone ${ZONE} ($n)"
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ret=0
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retry_quiet 10 _check_nsec3_nxdomain || log_error "bad NXDOMAIN response for zone ${ZONE}"
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test "$ret" -eq 0 || echo_i "failed"
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status=$((status+ret))
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}
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start_time="$(TZ=UTC date +%s)"
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status=0
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n=0
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# Zone: nsec-to-nsec3.kasp.
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set_zone_policy "nsec-to-nsec3.kasp" "nsec"
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set_server "ns3" "10.53.0.3"
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echo_i "initial check zone ${ZONE}"
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check_nsec
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dnssec_verify
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# Zone: nsec3.kasp.
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set_zone_policy "nsec3.kasp" "nsec3"
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set_nsec3param "0" "5" "-"
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echo_i "initial check zone ${ZONE}"
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check_nsec3
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dnssec_verify
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# Zone: nsec3-change.kasp.
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set_zone_policy "nsec3-change.kasp" "nsec3"
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echo_i "initial check zone ${ZONE}"
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check_nsec3
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dnssec_verify
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# Zone: nsec3-to-nsec.kasp.
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set_zone_policy "nsec3-to-nsec.kasp" "nsec3"
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echo_i "initial check zone ${ZONE}"
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check_nsec3
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dnssec_verify
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# Zone: nsec3-other.kasp.
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set_zone_policy "nsec3-other.kasp" "nsec3-other"
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set_nsec3param "1" "11" "DEADBEEF"
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echo_i "initial check zone ${ZONE}"
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check_nsec3
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dnssec_verify
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# Reconfig named.
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echo_i "reconfig dnssec-policy to trigger nsec3 rollovers"
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copy_setports ns3/named2.conf.in ns3/named.conf
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rndc_reconfig ns3 10.53.0.3
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# Zone: nsec-to-nsec3.kasp. (reconfigured)
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set_zone_policy "nsec-to-nsec3.kasp" "nsec3"
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set_nsec3param "0" "5" "-"
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echo_i "check zone ${ZONE} after reconfig"
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check_nsec3
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dnssec_verify
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# Zone: nsec3.kasp. (same)
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set_zone_policy "nsec3.kasp" "nsec3"
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echo_i "check zone ${ZONE} after reconfig"
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check_nsec3
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dnssec_verify
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# Zone: nsec3-change.kasp. (reconfigured)
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set_zone_policy "nsec3-change.kasp" "nsec3-other"
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set_nsec3param "1" "11" "DEADBEEF"
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echo_i "check zone ${ZONE} after reconfig"
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check_nsec3
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dnssec_verify
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# Zone: nsec3-to-nsec.kasp. (reconfigured)
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set_zone_policy "nsec3-to-nsec.kasp" "nsec"
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echo_i "check zone ${ZONE} after reconfig"
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check_nsec
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dnssec_verify
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# Zone: nsec3-other.kasp. (same)
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set_zone_policy "nsec3-other.kasp" "nsec3-other"
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set_nsec3param "1" "11" "DEADBEEF"
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echo_i "check zone ${ZONE} after reconfig"
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check_nsec3
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dnssec_verify
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# Using rndc signing -nsec3param
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set_zone_policy "nsec3-change.kasp" "nsec3-other"
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echo_i "use rndc signing -nsec3param ${ZONE} to change NSEC3 settings"
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rndccmd $SERVER signing -nsec3param 1 1 12 ffff $ZONE > rndc.signing.test$n.$ZONE || log_error "failed to call rndc signing -nsec3param $ZONE"
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grep "zone uses dnssec-policy, use rndc dnssec command instead" rndc.signing.test$n.$ZONE > /dev/null || log_error "rndc signing -nsec3param should fail"
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check_nsec3
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dnssec_verify
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echo_i "exit status: $status"
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[ $status -eq 0 ] || exit 1
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