Merge pull request #23104 from mrc0mmand/resolved-tests
Introduce systemd-resolved test suite
This commit is contained in:
Yu Watanabe
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# SPDX-License-Identifier: LGPL-2.1-or-later
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[Unit]
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Description=Tests for systemd-resolved
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[Service]
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ExecStartPre=rm -f /failed /testok
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ExecStart=/usr/lib/systemd/tests/testdata/units/%N.sh
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Type=oneshot
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StandardOutput=journal+console
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StandardError=journal+console
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Executable
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#!/usr/bin/env bash
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# SPDX-License-Identifier: LGPL-2.1-or-later
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# vi: ts=4 sw=4 tw=0 et:
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set -eux
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set -o pipefail
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: >/failed
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RUN_OUT="$(mktemp)"
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run() {
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"$@" |& tee "$RUN_OUT"
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}
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### SETUP ###
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# Configure network
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hostnamectl hostname ns1.unsigned.test
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echo "10.0.0.1 ns1.unsigned.test" >>/etc/hosts
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mkdir -p /etc/systemd/network
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cat >/etc/systemd/network/dns0.netdev <<EOF
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[NetDev]
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Name=dns0
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Kind=dummy
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EOF
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cat >/etc/systemd/network/dns0.network <<EOF
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[Match]
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Name=dns0
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[Network]
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Address=10.0.0.1/24
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DNSSEC=allow-downgrade
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DNS=10.0.0.1
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EOF
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{
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echo "FallbackDNS="
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echo "DNSSEC=allow-downgrade"
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echo "DNSOverTLS=opportunistic"
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} >>/etc/systemd/resolved.conf
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ln -svf /run/systemd/resolve/stub-resolv.conf /etc/resolv.conf
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# Override the default NTA list, which turns off DNSSEC validation for (among
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# others) the test. domain
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mkdir -p "/etc/dnssec-trust-anchors.d/"
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echo local >/etc/dnssec-trust-anchors.d/local.negative
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# Sign the root zone
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keymgr . generate algorithm=ECDSAP256SHA256 ksk=yes zsk=yes
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# Create a trust anchor for resolved with our root zone
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keymgr . ds | sed 's/ DS/ IN DS/g' >/etc/dnssec-trust-anchors.d/root.positive
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# Create a bind-compatible trust anchor (for delv)
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# Note: the trust-anchors directive is relatively new, so use the original
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# managed-keys one until it's widespread enough
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{
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echo 'managed-keys {'
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keymgr . dnskey | sed -r 's/^\. DNSKEY ([0-9]+ [0-9]+ [0-9]+) (.+)$/. static-key \1 "\2";/g'
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echo '};'
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} >/etc/bind.keys
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# Start the services
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systemctl unmask systemd-networkd systemd-resolved
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systemctl start systemd-networkd systemd-resolved
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systemctl start knot
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# Wait a bit for the keys to propagate
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sleep 4
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networkctl status
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resolvectl status
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resolvectl log-level debug
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# We need to manually propagate the DS records of onlinesign.test. to the parent
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# zone, since they're generated online
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knotc zone-begin test.
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while read -ra line; do
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knotc zone-set test. "${line[@]}"
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done < <(keymgr onlinesign.test ds)
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knotc zone-commit test.
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### SETUP END ###
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: "--- nss-resolve/nss-myhostname tests"
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# Sanity check
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run getent -s resolve hosts ns1.unsigned.test
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grep -qE "^10\.0\.0\.1\s+ns1\.unsigned\.test" "$RUN_OUT"
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# Issue: https://github.com/systemd/systemd/issues/18812
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# PR: https://github.com/systemd/systemd/pull/18896
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# Follow-up issue: https://github.com/systemd/systemd/issues/23152
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# Follow-up PR: https://github.com/systemd/systemd/pull/23161
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# With IPv6 enabled
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run getent -s resolve hosts localhost
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grep -qE "^::1\s+localhost" "$RUN_OUT"
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run getent -s myhostname hosts localhost
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grep -qE "^::1\s+localhost" "$RUN_OUT"
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# With IPv6 disabled
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sysctl -w net.ipv6.conf.all.disable_ipv6=1
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run getent -s resolve hosts localhost
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grep -qE "^127\.0\.0\.1\s+localhost" "$RUN_OUT"
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run getent -s myhostname hosts localhost
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grep -qE "^127\.0\.0\.1\s+localhost" "$RUN_OUT"
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sysctl -w net.ipv6.conf.all.disable_ipv6=0
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: "--- Basic resolved tests ---"
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# Issue: https://github.com/systemd/systemd/issues/22229
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# PR: https://github.com/systemd/systemd/pull/22231
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FILTERED_NAMES=(
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"0.in-addr.arpa"
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"255.255.255.255.in-addr.arpa"
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"0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa"
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"hello.invalid"
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)
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for name in "${FILTERED_NAMES[@]}"; do
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(! run host "$name")
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grep -qF "NXDOMAIN" "$RUN_OUT"
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done
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# Follow-up
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# Issue: https://github.com/systemd/systemd/issues/22401
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# PR: https://github.com/systemd/systemd/pull/22414
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run dig +noall +authority +comments SRV .
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grep -qF "status: NOERROR" "$RUN_OUT"
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grep -qE "IN\s+SOA\s+ns1\.unsigned\.test\." "$RUN_OUT"
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: "--- ZONE: unsigned.test. ---"
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run dig @10.0.0.1 +short unsigned.test
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grep -qF "10.0.0.101" "$RUN_OUT"
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run resolvectl query unsigned.test
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grep -qF "unsigned.test: 10.0.0.10" "$RUN_OUT"
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grep -qF "authenticated: no" "$RUN_OUT"
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run dig @10.0.0.1 +short MX unsigned.test
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grep -qF "15 mail.unsigned.test." "$RUN_OUT"
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run resolvectl query --legend=no -t MX unsigned.test
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grep -qF "unsigned.test IN MX 15 mail.unsigned.test" "$RUN_OUT"
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: "--- ZONE: signed.systemd (static DNSSEC) ---"
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# Check the trust chain (with and without systemd-resolved in between
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# Issue: https://github.com/systemd/systemd/issues/22002
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# PR: https://github.com/systemd/systemd/pull/23289
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run delv @10.0.0.1 signed.test
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grep -qF "; fully validated" "$RUN_OUT"
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run delv signed.test
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grep -qF "; fully validated" "$RUN_OUT"
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run dig +short signed.test
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grep -qF "10.0.0.10" "$RUN_OUT"
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run resolvectl query signed.test
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grep -qF "signed.test: 10.0.0.10" "$RUN_OUT"
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grep -qF "authenticated: yes" "$RUN_OUT"
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run dig @10.0.0.1 +short MX signed.test
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grep -qF "10 mail.signed.test." "$RUN_OUT"
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run resolvectl query --legend=no -t MX signed.test
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grep -qF "signed.test IN MX 10 mail.signed.test" "$RUN_OUT"
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# Check a non-existent domain
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run dig +dnssec this.does.not.exist.signed.test
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grep -qF "status: NXDOMAIN" "$RUN_OUT"
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# Check a wildcard record
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run resolvectl query -t TXT this.should.be.authenticated.wild.signed.test
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grep -qF 'this.should.be.authenticated.wild.signed.test IN TXT "this is a wildcard"' "$RUN_OUT"
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grep -qF "authenticated: yes" "$RUN_OUT"
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# DNSSEC validation with multiple records of the same type for the same name
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# Issue: https://github.com/systemd/systemd/issues/22002
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# PR: https://github.com/systemd/systemd/pull/23289
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run delv @10.0.0.1 dupe.signed.test
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grep -qF "; fully validated" "$RUN_OUT"
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run delv dupe.signed.test
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grep -qF "; fully validated" "$RUN_OUT"
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# Test resolution of CNAME chains
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run resolvectl query -t A cname-chain.signed.test
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grep -qF "follow14.final.signed.test IN A 10.0.0.14" "$RUN_OUT"
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grep -qF "authenticated: yes" "$RUN_OUT"
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# Non-existing RR + CNAME chain
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run dig +dnssec AAAA cname-chain.signed.test
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grep -qF "status: NOERROR" "$RUN_OUT"
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grep -qE "^follow14\.final\.signed\.test\..+IN\s+NSEC\s+" "$RUN_OUT"
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: "--- ZONE: onlinesign.test (dynamic DNSSEC) ---"
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# Check the trust chain (with and without systemd-resolved in between
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# Issue: https://github.com/systemd/systemd/issues/22002
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# PR: https://github.com/systemd/systemd/pull/23289
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run delv @10.0.0.1 sub.onlinesign.test
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grep -qF "; fully validated" "$RUN_OUT"
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run delv sub.onlinesign.test
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grep -qF "; fully validated" "$RUN_OUT"
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run dig +short sub.onlinesign.test
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grep -qF "10.0.0.133" "$RUN_OUT"
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run resolvectl query sub.onlinesign.test
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grep -qF "sub.onlinesign.test: 10.0.0.133" "$RUN_OUT"
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grep -qF "authenticated: yes" "$RUN_OUT"
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run dig @10.0.0.1 +short TXT onlinesign.test
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grep -qF '"hello from onlinesign"' "$RUN_OUT"
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run resolvectl query --legend=no -t TXT onlinesign.test
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grep -qF 'onlinesign.test IN TXT "hello from onlinesign"' "$RUN_OUT"
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# Check a non-existent domain
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# Note: mod-onlinesign utilizes Minimally Covering NSEC Records, hence the
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# different response than with "standard" DNSSEC
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run dig +dnssec this.does.not.exist.onlinesign.test
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grep -qF "status: NOERROR" "$RUN_OUT"
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grep -qF "NSEC \\000.this.does.not.exist.onlinesign.test." "$RUN_OUT"
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# Check a wildcard record
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run resolvectl query -t TXT this.should.be.authenticated.wild.onlinesign.test
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grep -qF 'this.should.be.authenticated.wild.onlinesign.test IN TXT "this is an onlinesign wildcard"' "$RUN_OUT"
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grep -qF "authenticated: yes" "$RUN_OUT"
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: "--- ZONE: untrusted.test (DNSSEC without propagated DS records) ---"
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run dig +short untrusted.test
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grep -qF "10.0.0.121" "$RUN_OUT"
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run resolvectl query untrusted.test
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grep -qF "untrusted.test: 10.0.0.121" "$RUN_OUT"
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grep -qF "authenticated: no" "$RUN_OUT"
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# Issue: https://github.com/systemd/systemd/issues/19472
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# 1) Query for a non-existing RR should return NOERROR + NSEC (?), not NXDOMAIN
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# FIXME: re-enable once the issue is resolved
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#run dig +dnssec AAAA untrusted.test
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#grep -qF "status: NOERROR" "$RUN_OUT"
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#grep -qE "^untrusted\.test\..+IN\s+NSEC\s+" "$RUN_OUT"
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## 2) Query for a non-existing name should return NXDOMAIN, not SERVFAIL
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#run dig +dnssec this.does.not.exist.untrusted.test
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#grep -qF "status: NXDOMAIN" "$RUN_OUT"
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touch /testok
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rm /failed
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